Move package

orm/cmd_utils.go

@@ -178,9 +178,9 @@ func getDbCreateSQL(al *alias) (sqls []string, tableIndexes map[string][]dbIndex
 					column += " " + "NOT NULL"
 				}
 
-				// if fi.initial.String() != "" {
+				//if fi.initial.String() != "" {
 				//	column += " DEFAULT " + fi.initial.String()
-				// }
+				//}
 
 				// Append attribute DEFAULT
 				column += getColumnDefault(fi)
@@ -197,9 +197,9 @@ func getDbCreateSQL(al *alias) (sqls []string, tableIndexes map[string][]dbIndex
 			if strings.Contains(column, "%COL%") {
 				column = strings.Replace(column, "%COL%", fi.column, -1)
 			}
-
+			
-			if fi.description != "" && al.Driver != DRSqlite {
+			if fi.description != "" && al.Driver!=DRSqlite {
-				column += " " + fmt.Sprintf("COMMENT '%s'", fi.description)
+				column += " " + fmt.Sprintf("COMMENT '%s'",fi.description)
 			}
 
 			columns = append(columns, column)

orm/db_alias.go

@@ -12,21 +12,16 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-// Deprecated: we will remove this package, please using pkg/orm
 package orm
 
 import (
 	"context"
 	"database/sql"
 	"fmt"
+	lru "github.com/hashicorp/golang-lru"
 	"reflect"
 	"sync"
 	"time"
-
-	lru "github.com/hashicorp/golang-lru"
-
-	"github.com/astaxie/beego/pkg/common"
-	orm2 "github.com/astaxie/beego/pkg/orm"
 )
 
 // DriverType database driver constant int.
@@ -68,7 +63,7 @@ var (
 		"tidb":     DRTiDB,
 		"oracle":   DROracle,
 		"oci8":     DROracle, // github.com/mattn/go-oci8
-		"ora":      DROracle, // https://github.com/rana/ora
+		"ora":      DROracle, //https://github.com/rana/ora
 	}
 	dbBasers = map[DriverType]dbBaser{
 		DRMySQL:    newdbBaseMysql(),
@@ -124,7 +119,7 @@ func (d *DB) BeginTx(ctx context.Context, opts *sql.TxOptions) (*sql.Tx, error)
 	return d.DB.BeginTx(ctx, opts)
 }
 
-// su must call release to release *sql.Stmt after using
+//su must call release to release *sql.Stmt after using
 func (d *DB) getStmtDecorator(query string) (*stmtDecorator, error) {
 	d.RLock()
 	c, ok := d.stmtDecorators.Get(query)
@@ -294,26 +289,82 @@ func detectTZ(al *alias) {
 	}
 }
 
+func addAliasWthDB(aliasName, driverName string, db *sql.DB) (*alias, error) {
+	al := new(alias)
+	al.Name = aliasName
+	al.DriverName = driverName
+	al.DB = &DB{
+		RWMutex:        new(sync.RWMutex),
+		DB:             db,
+		stmtDecorators: newStmtDecoratorLruWithEvict(),
+	}
+
+	if dr, ok := drivers[driverName]; ok {
+		al.DbBaser = dbBasers[dr]
+		al.Driver = dr
+	} else {
+		return nil, fmt.Errorf("driver name `%s` have not registered", driverName)
+	}
+
+	err := db.Ping()
+	if err != nil {
+		return nil, fmt.Errorf("register db Ping `%s`, %s", aliasName, err.Error())
+	}
+
+	if !dataBaseCache.add(aliasName, al) {
+		return nil, fmt.Errorf("DataBase alias name `%s` already registered, cannot reuse", aliasName)
+	}
+
+	return al, nil
+}
+
 // AddAliasWthDB add a aliasName for the drivename
-// Deprecated: please using pkg/orm
 func AddAliasWthDB(aliasName, driverName string, db *sql.DB) error {
-	return orm2.AddAliasWthDB(aliasName, driverName, db)
+	_, err := addAliasWthDB(aliasName, driverName, db)
+	return err
 }
 
 // RegisterDataBase Setting the database connect params. Use the database driver self dataSource args.
 func RegisterDataBase(aliasName, driverName, dataSource string, params ...int) error {
-	kvs := make([]common.KV, 0, 2)
+	var (
+		err error
+		db  *sql.DB
+		al  *alias
+	)
+
+	db, err = sql.Open(driverName, dataSource)
+	if err != nil {
+		err = fmt.Errorf("register db `%s`, %s", aliasName, err.Error())
+		goto end
+	}
+
+	al, err = addAliasWthDB(aliasName, driverName, db)
+	if err != nil {
+		goto end
+	}
+
+	al.DataSource = dataSource
+
+	detectTZ(al)
+
 	for i, v := range params {
 		switch i {
 		case 0:
-			kvs = append(kvs, common.KV{Key: orm2.MaxIdleConnsKey, Value: v})
+			SetMaxIdleConns(al.Name, v)
 		case 1:
-			kvs = append(kvs, common.KV{Key: orm2.MaxOpenConnsKey, Value: v})
+			SetMaxOpenConns(al.Name, v)
-		case 2:
-			kvs = append(kvs, common.KV{Key: orm2.ConnMaxLifetimeKey, Value: time.Duration(v) * time.Millisecond})
 		}
 	}
-	return orm2.RegisterDataBase(aliasName, driverName, dataSource, kvs...)
+
+end:
+	if err != nil {
+		if db != nil {
+			db.Close()
+		}
+		DebugLog.Println(err.Error())
+	}
+
+	return err
 }
 
 // RegisterDriver Register a database driver use specify driver name, this can be definition the driver is which database type.
@@ -373,7 +424,7 @@ func GetDB(aliasNames ...string) (*sql.DB, error) {
 }
 
 type stmtDecorator struct {
-	wg   sync.WaitGroup
+	wg sync.WaitGroup
 	stmt *sql.Stmt
 }
 
@@ -393,7 +444,7 @@ func (s *stmtDecorator) release() {
 	s.wg.Done()
 }
 
-// garbage recycle for stmt
+//garbage recycle for stmt
 func (s *stmtDecorator) destroy() {
 	go func() {
 		s.wg.Wait()

orm/orm_alias_adapt_test.go

@@ -1,46 +0,0 @@
-// Copyright 2020 beego-dev
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-// http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
-
-package orm
-
-import (
-	"os"
-	"testing"
-
-	_ "github.com/go-sql-driver/mysql"
-	_ "github.com/lib/pq"
-	_ "github.com/mattn/go-sqlite3"
-	"github.com/stretchr/testify/assert"
-)
-
-var DBARGS = struct {
-	Driver string
-	Source string
-	Debug  string
-}{
-	os.Getenv("ORM_DRIVER"),
-	os.Getenv("ORM_SOURCE"),
-	os.Getenv("ORM_DEBUG"),
-}
-
-func TestRegisterDataBase(t *testing.T) {
-	err := RegisterDataBase("test-adapt1", DBARGS.Driver, DBARGS.Source)
-	assert.Nil(t, err)
-	err = RegisterDataBase("test-adapt2", DBARGS.Driver, DBARGS.Source, 20)
-	assert.Nil(t, err)
-	err = RegisterDataBase("test-adapt3", DBARGS.Driver, DBARGS.Source, 20, 300)
-	assert.Nil(t, err)
-	err = RegisterDataBase("test-adapt4", DBARGS.Driver, DBARGS.Source, 20, 300, 60*1000)
-	assert.Nil(t, err)
-}

pkg/admin.go

@@ -0,0 +1,458 @@
+// Copyright 2014 beego Author. All Rights Reserved.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//      http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package beego
+
+import (
+	"bytes"
+	"encoding/json"
+	"fmt"
+	"net/http"
+	"os"
+	"reflect"
+	"strconv"
+	"text/template"
+	"time"
+
+	"github.com/prometheus/client_golang/prometheus/promhttp"
+
+	"github.com/astaxie/beego/grace"
+	"github.com/astaxie/beego/logs"
+	"github.com/astaxie/beego/toolbox"
+	"github.com/astaxie/beego/utils"
+)
+
+// BeeAdminApp is the default adminApp used by admin module.
+var beeAdminApp *adminApp
+
+// FilterMonitorFunc is default monitor filter when admin module is enable.
+// if this func returns, admin module records qps for this request by condition of this function logic.
+// usage:
+// 	func MyFilterMonitor(method, requestPath string, t time.Duration, pattern string, statusCode int) bool {
+//	 	if method == "POST" {
+//			return false
+//	 	}
+//	 	if t.Nanoseconds() < 100 {
+//			return false
+//	 	}
+//	 	if strings.HasPrefix(requestPath, "/astaxie") {
+//			return false
+//	 	}
+//	 	return true
+// 	}
+// 	beego.FilterMonitorFunc = MyFilterMonitor.
+var FilterMonitorFunc func(string, string, time.Duration, string, int) bool
+
+func init() {
+	beeAdminApp = &adminApp{
+		routers: make(map[string]http.HandlerFunc),
+	}
+	// keep in mind that all data should be html escaped to avoid XSS attack
+	beeAdminApp.Route("/", adminIndex)
+	beeAdminApp.Route("/qps", qpsIndex)
+	beeAdminApp.Route("/prof", profIndex)
+	beeAdminApp.Route("/healthcheck", healthcheck)
+	beeAdminApp.Route("/task", taskStatus)
+	beeAdminApp.Route("/listconf", listConf)
+	beeAdminApp.Route("/metrics", promhttp.Handler().ServeHTTP)
+	FilterMonitorFunc = func(string, string, time.Duration, string, int) bool { return true }
+}
+
+// AdminIndex is the default http.Handler for admin module.
+// it matches url pattern "/".
+func adminIndex(rw http.ResponseWriter, _ *http.Request) {
+	writeTemplate(rw, map[interface{}]interface{}{}, indexTpl, defaultScriptsTpl)
+}
+
+// QpsIndex is the http.Handler for writing qps statistics map result info in http.ResponseWriter.
+// it's registered with url pattern "/qps" in admin module.
+func qpsIndex(rw http.ResponseWriter, _ *http.Request) {
+	data := make(map[interface{}]interface{})
+	data["Content"] = toolbox.StatisticsMap.GetMap()
+
+	// do html escape before display path, avoid xss
+	if content, ok := (data["Content"]).(M); ok {
+		if resultLists, ok := (content["Data"]).([][]string); ok {
+			for i := range resultLists {
+				if len(resultLists[i]) > 0 {
+					resultLists[i][0] = template.HTMLEscapeString(resultLists[i][0])
+				}
+			}
+		}
+	}
+
+	writeTemplate(rw, data, qpsTpl, defaultScriptsTpl)
+}
+
+// ListConf is the http.Handler of displaying all beego configuration values as key/value pair.
+// it's registered with url pattern "/listconf" in admin module.
+func listConf(rw http.ResponseWriter, r *http.Request) {
+	r.ParseForm()
+	command := r.Form.Get("command")
+	if command == "" {
+		rw.Write([]byte("command not support"))
+		return
+	}
+
+	data := make(map[interface{}]interface{})
+	switch command {
+	case "conf":
+		m := make(M)
+		list("BConfig", BConfig, m)
+		m["AppConfigPath"] = template.HTMLEscapeString(appConfigPath)
+		m["AppConfigProvider"] = template.HTMLEscapeString(appConfigProvider)
+		tmpl := template.Must(template.New("dashboard").Parse(dashboardTpl))
+		tmpl = template.Must(tmpl.Parse(configTpl))
+		tmpl = template.Must(tmpl.Parse(defaultScriptsTpl))
+
+		data["Content"] = m
+
+		tmpl.Execute(rw, data)
+
+	case "router":
+		content := PrintTree()
+		content["Fields"] = []string{
+			"Router Pattern",
+			"Methods",
+			"Controller",
+		}
+		data["Content"] = content
+		data["Title"] = "Routers"
+		writeTemplate(rw, data, routerAndFilterTpl, defaultScriptsTpl)
+	case "filter":
+		var (
+			content = M{
+				"Fields": []string{
+					"Router Pattern",
+					"Filter Function",
+				},
+			}
+			filterTypes    = []string{}
+			filterTypeData = make(M)
+		)
+
+		if BeeApp.Handlers.enableFilter {
+			var filterType string
+			for k, fr := range map[int]string{
+				BeforeStatic: "Before Static",
+				BeforeRouter: "Before Router",
+				BeforeExec:   "Before Exec",
+				AfterExec:    "After Exec",
+				FinishRouter: "Finish Router"} {
+				if bf := BeeApp.Handlers.filters[k]; len(bf) > 0 {
+					filterType = fr
+					filterTypes = append(filterTypes, filterType)
+					resultList := new([][]string)
+					for _, f := range bf {
+						var result = []string{
+							// void xss
+							template.HTMLEscapeString(f.pattern),
+							template.HTMLEscapeString(utils.GetFuncName(f.filterFunc)),
+						}
+						*resultList = append(*resultList, result)
+					}
+					filterTypeData[filterType] = resultList
+				}
+			}
+		}
+
+		content["Data"] = filterTypeData
+		content["Methods"] = filterTypes
+
+		data["Content"] = content
+		data["Title"] = "Filters"
+		writeTemplate(rw, data, routerAndFilterTpl, defaultScriptsTpl)
+	default:
+		rw.Write([]byte("command not support"))
+	}
+}
+
+func list(root string, p interface{}, m M) {
+	pt := reflect.TypeOf(p)
+	pv := reflect.ValueOf(p)
+	if pt.Kind() == reflect.Ptr {
+		pt = pt.Elem()
+		pv = pv.Elem()
+	}
+	for i := 0; i < pv.NumField(); i++ {
+		var key string
+		if root == "" {
+			key = pt.Field(i).Name
+		} else {
+			key = root + "." + pt.Field(i).Name
+		}
+		if pv.Field(i).Kind() == reflect.Struct {
+			list(key, pv.Field(i).Interface(), m)
+		} else {
+			m[key] = pv.Field(i).Interface()
+		}
+	}
+}
+
+// PrintTree prints all registered routers.
+func PrintTree() M {
+	var (
+		content     = M{}
+		methods     = []string{}
+		methodsData = make(M)
+	)
+	for method, t := range BeeApp.Handlers.routers {
+
+		resultList := new([][]string)
+
+		printTree(resultList, t)
+
+		methods = append(methods, template.HTMLEscapeString(method))
+		methodsData[template.HTMLEscapeString(method)] = resultList
+	}
+
+	content["Data"] = methodsData
+	content["Methods"] = methods
+	return content
+}
+
+func printTree(resultList *[][]string, t *Tree) {
+	for _, tr := range t.fixrouters {
+		printTree(resultList, tr)
+	}
+	if t.wildcard != nil {
+		printTree(resultList, t.wildcard)
+	}
+	for _, l := range t.leaves {
+		if v, ok := l.runObject.(*ControllerInfo); ok {
+			if v.routerType == routerTypeBeego {
+				var result = []string{
+					template.HTMLEscapeString(v.pattern),
+					template.HTMLEscapeString(fmt.Sprintf("%s", v.methods)),
+					template.HTMLEscapeString(v.controllerType.String()),
+				}
+				*resultList = append(*resultList, result)
+			} else if v.routerType == routerTypeRESTFul {
+				var result = []string{
+					template.HTMLEscapeString(v.pattern),
+					template.HTMLEscapeString(fmt.Sprintf("%s", v.methods)),
+					"",
+				}
+				*resultList = append(*resultList, result)
+			} else if v.routerType == routerTypeHandler {
+				var result = []string{
+					template.HTMLEscapeString(v.pattern),
+					"",
+					"",
+				}
+				*resultList = append(*resultList, result)
+			}
+		}
+	}
+}
+
+// ProfIndex is a http.Handler for showing profile command.
+// it's in url pattern "/prof" in admin module.
+func profIndex(rw http.ResponseWriter, r *http.Request) {
+	r.ParseForm()
+	command := r.Form.Get("command")
+	if command == "" {
+		return
+	}
+
+	var (
+		format = r.Form.Get("format")
+		data   = make(map[interface{}]interface{})
+		result bytes.Buffer
+	)
+	toolbox.ProcessInput(command, &result)
+	data["Content"] = template.HTMLEscapeString(result.String())
+
+	if format == "json" && command == "gc summary" {
+		dataJSON, err := json.Marshal(data)
+		if err != nil {
+			http.Error(rw, err.Error(), http.StatusInternalServerError)
+			return
+		}
+		writeJSON(rw, dataJSON)
+		return
+	}
+
+	data["Title"] = template.HTMLEscapeString(command)
+	defaultTpl := defaultScriptsTpl
+	if command == "gc summary" {
+		defaultTpl = gcAjaxTpl
+	}
+	writeTemplate(rw, data, profillingTpl, defaultTpl)
+}
+
+// Healthcheck is a http.Handler calling health checking and showing the result.
+// it's in "/healthcheck" pattern in admin module.
+func healthcheck(rw http.ResponseWriter, r *http.Request) {
+	var (
+		result     []string
+		data       = make(map[interface{}]interface{})
+		resultList = new([][]string)
+		content    = M{
+			"Fields": []string{"Name", "Message", "Status"},
+		}
+	)
+
+	for name, h := range toolbox.AdminCheckList {
+		if err := h.Check(); err != nil {
+			result = []string{
+				"error",
+				template.HTMLEscapeString(name),
+				template.HTMLEscapeString(err.Error()),
+			}
+		} else {
+			result = []string{
+				"success",
+				template.HTMLEscapeString(name),
+				"OK",
+			}
+		}
+		*resultList = append(*resultList, result)
+	}
+
+	queryParams := r.URL.Query()
+	jsonFlag := queryParams.Get("json")
+	shouldReturnJSON, _ := strconv.ParseBool(jsonFlag)
+
+	if shouldReturnJSON {
+		response := buildHealthCheckResponseList(resultList)
+		jsonResponse, err := json.Marshal(response)
+
+		if err != nil {
+			http.Error(rw, err.Error(), http.StatusInternalServerError)
+		} else {
+			writeJSON(rw, jsonResponse)
+		}
+		return
+	}
+
+	content["Data"] = resultList
+	data["Content"] = content
+	data["Title"] = "Health Check"
+
+	writeTemplate(rw, data, healthCheckTpl, defaultScriptsTpl)
+}
+
+func buildHealthCheckResponseList(healthCheckResults *[][]string) []map[string]interface{} {
+	response := make([]map[string]interface{}, len(*healthCheckResults))
+
+	for i, healthCheckResult := range *healthCheckResults {
+		currentResultMap := make(map[string]interface{})
+
+		currentResultMap["name"] = healthCheckResult[0]
+		currentResultMap["message"] = healthCheckResult[1]
+		currentResultMap["status"] = healthCheckResult[2]
+
+		response[i] = currentResultMap
+	}
+
+	return response
+
+}
+
+func writeJSON(rw http.ResponseWriter, jsonData []byte) {
+	rw.Header().Set("Content-Type", "application/json")
+	rw.Write(jsonData)
+}
+
+// TaskStatus is a http.Handler with running task status (task name, status and the last execution).
+// it's in "/task" pattern in admin module.
+func taskStatus(rw http.ResponseWriter, req *http.Request) {
+	data := make(map[interface{}]interface{})
+
+	// Run Task
+	req.ParseForm()
+	taskname := req.Form.Get("taskname")
+	if taskname != "" {
+		if t, ok := toolbox.AdminTaskList[taskname]; ok {
+			if err := t.Run(); err != nil {
+				data["Message"] = []string{"error", template.HTMLEscapeString(fmt.Sprintf("%s", err))}
+			}
+			data["Message"] = []string{"success", template.HTMLEscapeString(fmt.Sprintf("%s run success,Now the Status is <br>%s", taskname, t.GetStatus()))}
+		} else {
+			data["Message"] = []string{"warning", template.HTMLEscapeString(fmt.Sprintf("there's no task which named: %s", taskname))}
+		}
+	}
+
+	// List Tasks
+	content := make(M)
+	resultList := new([][]string)
+	var fields = []string{
+		"Task Name",
+		"Task Spec",
+		"Task Status",
+		"Last Time",
+		"",
+	}
+	for tname, tk := range toolbox.AdminTaskList {
+		result := []string{
+			template.HTMLEscapeString(tname),
+			template.HTMLEscapeString(tk.GetSpec()),
+			template.HTMLEscapeString(tk.GetStatus()),
+			template.HTMLEscapeString(tk.GetPrev().String()),
+		}
+		*resultList = append(*resultList, result)
+	}
+
+	content["Fields"] = fields
+	content["Data"] = resultList
+	data["Content"] = content
+	data["Title"] = "Tasks"
+	writeTemplate(rw, data, tasksTpl, defaultScriptsTpl)
+}
+
+func writeTemplate(rw http.ResponseWriter, data map[interface{}]interface{}, tpls ...string) {
+	tmpl := template.Must(template.New("dashboard").Parse(dashboardTpl))
+	for _, tpl := range tpls {
+		tmpl = template.Must(tmpl.Parse(tpl))
+	}
+	tmpl.Execute(rw, data)
+}
+
+// adminApp is an http.HandlerFunc map used as beeAdminApp.
+type adminApp struct {
+	routers map[string]http.HandlerFunc
+}
+
+// Route adds http.HandlerFunc to adminApp with url pattern.
+func (admin *adminApp) Route(pattern string, f http.HandlerFunc) {
+	admin.routers[pattern] = f
+}
+
+// Run adminApp http server.
+// Its addr is defined in configuration file as adminhttpaddr and adminhttpport.
+func (admin *adminApp) Run() {
+	if len(toolbox.AdminTaskList) > 0 {
+		toolbox.StartTask()
+	}
+	addr := BConfig.Listen.AdminAddr
+
+	if BConfig.Listen.AdminPort != 0 {
+		addr = fmt.Sprintf("%s:%d", BConfig.Listen.AdminAddr, BConfig.Listen.AdminPort)
+	}
+	for p, f := range admin.routers {
+		http.Handle(p, f)
+	}
+	logs.Info("Admin server Running on %s", addr)
+
+	var err error
+	if BConfig.Listen.Graceful {
+		err = grace.ListenAndServe(addr, nil)
+	} else {
+		err = http.ListenAndServe(addr, nil)
+	}
+	if err != nil {
+		logs.Critical("Admin ListenAndServe: ", err, fmt.Sprintf("%d", os.Getpid()))
+	}
+}

pkg/admin_test.go

@@ -0,0 +1,239 @@
+package beego
+
+import (
+	"encoding/json"
+	"errors"
+	"fmt"
+	"net/http"
+	"net/http/httptest"
+	"reflect"
+	"strings"
+	"testing"
+
+	"github.com/astaxie/beego/toolbox"
+)
+
+type SampleDatabaseCheck struct {
+}
+
+type SampleCacheCheck struct {
+}
+
+func (dc *SampleDatabaseCheck) Check() error {
+	return nil
+}
+
+func (cc *SampleCacheCheck) Check() error {
+	return errors.New("no cache detected")
+}
+
+func TestList_01(t *testing.T) {
+	m := make(M)
+	list("BConfig", BConfig, m)
+	t.Log(m)
+	om := oldMap()
+	for k, v := range om {
+		if fmt.Sprint(m[k]) != fmt.Sprint(v) {
+			t.Log(k, "old-key", v, "new-key", m[k])
+			t.FailNow()
+		}
+	}
+}
+
+func oldMap() M {
+	m := make(M)
+	m["BConfig.AppName"] = BConfig.AppName
+	m["BConfig.RunMode"] = BConfig.RunMode
+	m["BConfig.RouterCaseSensitive"] = BConfig.RouterCaseSensitive
+	m["BConfig.ServerName"] = BConfig.ServerName
+	m["BConfig.RecoverPanic"] = BConfig.RecoverPanic
+	m["BConfig.CopyRequestBody"] = BConfig.CopyRequestBody
+	m["BConfig.EnableGzip"] = BConfig.EnableGzip
+	m["BConfig.MaxMemory"] = BConfig.MaxMemory
+	m["BConfig.EnableErrorsShow"] = BConfig.EnableErrorsShow
+	m["BConfig.Listen.Graceful"] = BConfig.Listen.Graceful
+	m["BConfig.Listen.ServerTimeOut"] = BConfig.Listen.ServerTimeOut
+	m["BConfig.Listen.ListenTCP4"] = BConfig.Listen.ListenTCP4
+	m["BConfig.Listen.EnableHTTP"] = BConfig.Listen.EnableHTTP
+	m["BConfig.Listen.HTTPAddr"] = BConfig.Listen.HTTPAddr
+	m["BConfig.Listen.HTTPPort"] = BConfig.Listen.HTTPPort
+	m["BConfig.Listen.EnableHTTPS"] = BConfig.Listen.EnableHTTPS
+	m["BConfig.Listen.HTTPSAddr"] = BConfig.Listen.HTTPSAddr
+	m["BConfig.Listen.HTTPSPort"] = BConfig.Listen.HTTPSPort
+	m["BConfig.Listen.HTTPSCertFile"] = BConfig.Listen.HTTPSCertFile
+	m["BConfig.Listen.HTTPSKeyFile"] = BConfig.Listen.HTTPSKeyFile
+	m["BConfig.Listen.EnableAdmin"] = BConfig.Listen.EnableAdmin
+	m["BConfig.Listen.AdminAddr"] = BConfig.Listen.AdminAddr
+	m["BConfig.Listen.AdminPort"] = BConfig.Listen.AdminPort
+	m["BConfig.Listen.EnableFcgi"] = BConfig.Listen.EnableFcgi
+	m["BConfig.Listen.EnableStdIo"] = BConfig.Listen.EnableStdIo
+	m["BConfig.WebConfig.AutoRender"] = BConfig.WebConfig.AutoRender
+	m["BConfig.WebConfig.EnableDocs"] = BConfig.WebConfig.EnableDocs
+	m["BConfig.WebConfig.FlashName"] = BConfig.WebConfig.FlashName
+	m["BConfig.WebConfig.FlashSeparator"] = BConfig.WebConfig.FlashSeparator
+	m["BConfig.WebConfig.DirectoryIndex"] = BConfig.WebConfig.DirectoryIndex
+	m["BConfig.WebConfig.StaticDir"] = BConfig.WebConfig.StaticDir
+	m["BConfig.WebConfig.StaticExtensionsToGzip"] = BConfig.WebConfig.StaticExtensionsToGzip
+	m["BConfig.WebConfig.StaticCacheFileSize"] = BConfig.WebConfig.StaticCacheFileSize
+	m["BConfig.WebConfig.StaticCacheFileNum"] = BConfig.WebConfig.StaticCacheFileNum
+	m["BConfig.WebConfig.TemplateLeft"] = BConfig.WebConfig.TemplateLeft
+	m["BConfig.WebConfig.TemplateRight"] = BConfig.WebConfig.TemplateRight
+	m["BConfig.WebConfig.ViewsPath"] = BConfig.WebConfig.ViewsPath
+	m["BConfig.WebConfig.EnableXSRF"] = BConfig.WebConfig.EnableXSRF
+	m["BConfig.WebConfig.XSRFExpire"] = BConfig.WebConfig.XSRFExpire
+	m["BConfig.WebConfig.Session.SessionOn"] = BConfig.WebConfig.Session.SessionOn
+	m["BConfig.WebConfig.Session.SessionProvider"] = BConfig.WebConfig.Session.SessionProvider
+	m["BConfig.WebConfig.Session.SessionName"] = BConfig.WebConfig.Session.SessionName
+	m["BConfig.WebConfig.Session.SessionGCMaxLifetime"] = BConfig.WebConfig.Session.SessionGCMaxLifetime
+	m["BConfig.WebConfig.Session.SessionProviderConfig"] = BConfig.WebConfig.Session.SessionProviderConfig
+	m["BConfig.WebConfig.Session.SessionCookieLifeTime"] = BConfig.WebConfig.Session.SessionCookieLifeTime
+	m["BConfig.WebConfig.Session.SessionAutoSetCookie"] = BConfig.WebConfig.Session.SessionAutoSetCookie
+	m["BConfig.WebConfig.Session.SessionDomain"] = BConfig.WebConfig.Session.SessionDomain
+	m["BConfig.WebConfig.Session.SessionDisableHTTPOnly"] = BConfig.WebConfig.Session.SessionDisableHTTPOnly
+	m["BConfig.Log.AccessLogs"] = BConfig.Log.AccessLogs
+	m["BConfig.Log.EnableStaticLogs"] = BConfig.Log.EnableStaticLogs
+	m["BConfig.Log.AccessLogsFormat"] = BConfig.Log.AccessLogsFormat
+	m["BConfig.Log.FileLineNum"] = BConfig.Log.FileLineNum
+	m["BConfig.Log.Outputs"] = BConfig.Log.Outputs
+	return m
+}
+
+func TestWriteJSON(t *testing.T) {
+	t.Log("Testing the adding of JSON to the response")
+
+	w := httptest.NewRecorder()
+	originalBody := []int{1, 2, 3}
+
+	res, _ := json.Marshal(originalBody)
+
+	writeJSON(w, res)
+
+	decodedBody := []int{}
+	err := json.NewDecoder(w.Body).Decode(&decodedBody)
+
+	if err != nil {
+		t.Fatal("Could not decode response body into slice.")
+	}
+
+	for i := range decodedBody {
+		if decodedBody[i] != originalBody[i] {
+			t.Fatalf("Expected %d but got %d in decoded body slice", originalBody[i], decodedBody[i])
+		}
+	}
+}
+
+func TestHealthCheckHandlerDefault(t *testing.T) {
+	endpointPath := "/healthcheck"
+
+	toolbox.AddHealthCheck("database", &SampleDatabaseCheck{})
+	toolbox.AddHealthCheck("cache", &SampleCacheCheck{})
+
+	req, err := http.NewRequest("GET", endpointPath, nil)
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	w := httptest.NewRecorder()
+
+	handler := http.HandlerFunc(healthcheck)
+
+	handler.ServeHTTP(w, req)
+
+	if status := w.Code; status != http.StatusOK {
+		t.Errorf("handler returned wrong status code: got %v want %v",
+			status, http.StatusOK)
+	}
+	if !strings.Contains(w.Body.String(), "database") {
+		t.Errorf("Expected 'database' in generated template.")
+	}
+
+}
+
+func TestBuildHealthCheckResponseList(t *testing.T) {
+	healthCheckResults := [][]string{
+		[]string{
+			"error",
+			"Database",
+			"Error occured whie starting the db",
+		},
+		[]string{
+			"success",
+			"Cache",
+			"Cache started successfully",
+		},
+	}
+
+	responseList := buildHealthCheckResponseList(&healthCheckResults)
+
+	if len(responseList) != len(healthCheckResults) {
+		t.Errorf("invalid response map length: got %d want %d",
+			len(responseList), len(healthCheckResults))
+	}
+
+	responseFields := []string{"name", "message", "status"}
+
+	for _, response := range responseList {
+		for _, field := range responseFields {
+			_, ok := response[field]
+			if !ok {
+				t.Errorf("expected %s to be in the response %v", field, response)
+			}
+		}
+
+	}
+
+}
+
+func TestHealthCheckHandlerReturnsJSON(t *testing.T) {
+
+	toolbox.AddHealthCheck("database", &SampleDatabaseCheck{})
+	toolbox.AddHealthCheck("cache", &SampleCacheCheck{})
+
+	req, err := http.NewRequest("GET", "/healthcheck?json=true", nil)
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	w := httptest.NewRecorder()
+
+	handler := http.HandlerFunc(healthcheck)
+
+	handler.ServeHTTP(w, req)
+	if status := w.Code; status != http.StatusOK {
+		t.Errorf("handler returned wrong status code: got %v want %v",
+			status, http.StatusOK)
+	}
+
+	decodedResponseBody := []map[string]interface{}{}
+	expectedResponseBody := []map[string]interface{}{}
+
+	expectedJSONString := []byte(`
+		[
+			{
+				"message":"database",
+				"name":"success",
+				"status":"OK"
+			},
+			{
+				"message":"cache",
+				"name":"error",
+				"status":"no cache detected"
+			}
+		]
+	`)
+
+	json.Unmarshal(expectedJSONString, &expectedResponseBody)
+
+	json.Unmarshal(w.Body.Bytes(), &decodedResponseBody)
+
+	if len(expectedResponseBody) != len(decodedResponseBody) {
+		t.Errorf("invalid response map length: got %d want %d",
+			len(decodedResponseBody), len(expectedResponseBody))
+	}
+
+	if !reflect.DeepEqual(decodedResponseBody, expectedResponseBody) {
+		t.Errorf("handler returned unexpected body: got %v want %v",
+			decodedResponseBody, expectedResponseBody)
+	}
+
+}

pkg/app.go

@@ -0,0 +1,496 @@
+// Copyright 2014 beego Author. All Rights Reserved.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//      http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package beego
+
+import (
+	"crypto/tls"
+	"crypto/x509"
+	"fmt"
+	"io/ioutil"
+	"net"
+	"net/http"
+	"net/http/fcgi"
+	"os"
+	"path"
+	"strings"
+	"time"
+
+	"github.com/astaxie/beego/grace"
+	"github.com/astaxie/beego/logs"
+	"github.com/astaxie/beego/utils"
+	"golang.org/x/crypto/acme/autocert"
+)
+
+var (
+	// BeeApp is an application instance
+	BeeApp *App
+)
+
+func init() {
+	// create beego application
+	BeeApp = NewApp()
+}
+
+// App defines beego application with a new PatternServeMux.
+type App struct {
+	Handlers *ControllerRegister
+	Server   *http.Server
+}
+
+// NewApp returns a new beego application.
+func NewApp() *App {
+	cr := NewControllerRegister()
+	app := &App{Handlers: cr, Server: &http.Server{}}
+	return app
+}
+
+// MiddleWare function for http.Handler
+type MiddleWare func(http.Handler) http.Handler
+
+// Run beego application.
+func (app *App) Run(mws ...MiddleWare) {
+	addr := BConfig.Listen.HTTPAddr
+
+	if BConfig.Listen.HTTPPort != 0 {
+		addr = fmt.Sprintf("%s:%d", BConfig.Listen.HTTPAddr, BConfig.Listen.HTTPPort)
+	}
+
+	var (
+		err        error
+		l          net.Listener
+		endRunning = make(chan bool, 1)
+	)
+
+	// run cgi server
+	if BConfig.Listen.EnableFcgi {
+		if BConfig.Listen.EnableStdIo {
+			if err = fcgi.Serve(nil, app.Handlers); err == nil { // standard I/O
+				logs.Info("Use FCGI via standard I/O")
+			} else {
+				logs.Critical("Cannot use FCGI via standard I/O", err)
+			}
+			return
+		}
+		if BConfig.Listen.HTTPPort == 0 {
+			// remove the Socket file before start
+			if utils.FileExists(addr) {
+				os.Remove(addr)
+			}
+			l, err = net.Listen("unix", addr)
+		} else {
+			l, err = net.Listen("tcp", addr)
+		}
+		if err != nil {
+			logs.Critical("Listen: ", err)
+		}
+		if err = fcgi.Serve(l, app.Handlers); err != nil {
+			logs.Critical("fcgi.Serve: ", err)
+		}
+		return
+	}
+
+	app.Server.Handler = app.Handlers
+	for i := len(mws) - 1; i >= 0; i-- {
+		if mws[i] == nil {
+			continue
+		}
+		app.Server.Handler = mws[i](app.Server.Handler)
+	}
+	app.Server.ReadTimeout = time.Duration(BConfig.Listen.ServerTimeOut) * time.Second
+	app.Server.WriteTimeout = time.Duration(BConfig.Listen.ServerTimeOut) * time.Second
+	app.Server.ErrorLog = logs.GetLogger("HTTP")
+
+	// run graceful mode
+	if BConfig.Listen.Graceful {
+		httpsAddr := BConfig.Listen.HTTPSAddr
+		app.Server.Addr = httpsAddr
+		if BConfig.Listen.EnableHTTPS || BConfig.Listen.EnableMutualHTTPS {
+			go func() {
+				time.Sleep(1000 * time.Microsecond)
+				if BConfig.Listen.HTTPSPort != 0 {
+					httpsAddr = fmt.Sprintf("%s:%d", BConfig.Listen.HTTPSAddr, BConfig.Listen.HTTPSPort)
+					app.Server.Addr = httpsAddr
+				}
+				server := grace.NewServer(httpsAddr, app.Server.Handler)
+				server.Server.ReadTimeout = app.Server.ReadTimeout
+				server.Server.WriteTimeout = app.Server.WriteTimeout
+				if BConfig.Listen.EnableMutualHTTPS {
+					if err := server.ListenAndServeMutualTLS(BConfig.Listen.HTTPSCertFile, BConfig.Listen.HTTPSKeyFile, BConfig.Listen.TrustCaFile); err != nil {
+						logs.Critical("ListenAndServeTLS: ", err, fmt.Sprintf("%d", os.Getpid()))
+						time.Sleep(100 * time.Microsecond)
+					}
+				} else {
+					if BConfig.Listen.AutoTLS {
+						m := autocert.Manager{
+							Prompt:     autocert.AcceptTOS,
+							HostPolicy: autocert.HostWhitelist(BConfig.Listen.Domains...),
+							Cache:      autocert.DirCache(BConfig.Listen.TLSCacheDir),
+						}
+						app.Server.TLSConfig = &tls.Config{GetCertificate: m.GetCertificate}
+						BConfig.Listen.HTTPSCertFile, BConfig.Listen.HTTPSKeyFile = "", ""
+					}
+					if err := server.ListenAndServeTLS(BConfig.Listen.HTTPSCertFile, BConfig.Listen.HTTPSKeyFile); err != nil {
+						logs.Critical("ListenAndServeTLS: ", err, fmt.Sprintf("%d", os.Getpid()))
+						time.Sleep(100 * time.Microsecond)
+					}
+				}
+				endRunning <- true
+			}()
+		}
+		if BConfig.Listen.EnableHTTP {
+			go func() {
+				server := grace.NewServer(addr, app.Server.Handler)
+				server.Server.ReadTimeout = app.Server.ReadTimeout
+				server.Server.WriteTimeout = app.Server.WriteTimeout
+				if BConfig.Listen.ListenTCP4 {
+					server.Network = "tcp4"
+				}
+				if err := server.ListenAndServe(); err != nil {
+					logs.Critical("ListenAndServe: ", err, fmt.Sprintf("%d", os.Getpid()))
+					time.Sleep(100 * time.Microsecond)
+				}
+				endRunning <- true
+			}()
+		}
+		<-endRunning
+		return
+	}
+
+	// run normal mode
+	if BConfig.Listen.EnableHTTPS || BConfig.Listen.EnableMutualHTTPS {
+		go func() {
+			time.Sleep(1000 * time.Microsecond)
+			if BConfig.Listen.HTTPSPort != 0 {
+				app.Server.Addr = fmt.Sprintf("%s:%d", BConfig.Listen.HTTPSAddr, BConfig.Listen.HTTPSPort)
+			} else if BConfig.Listen.EnableHTTP {
+				logs.Info("Start https server error, conflict with http. Please reset https port")
+				return
+			}
+			logs.Info("https server Running on https://%s", app.Server.Addr)
+			if BConfig.Listen.AutoTLS {
+				m := autocert.Manager{
+					Prompt:     autocert.AcceptTOS,
+					HostPolicy: autocert.HostWhitelist(BConfig.Listen.Domains...),
+					Cache:      autocert.DirCache(BConfig.Listen.TLSCacheDir),
+				}
+				app.Server.TLSConfig = &tls.Config{GetCertificate: m.GetCertificate}
+				BConfig.Listen.HTTPSCertFile, BConfig.Listen.HTTPSKeyFile = "", ""
+			} else if BConfig.Listen.EnableMutualHTTPS {
+				pool := x509.NewCertPool()
+				data, err := ioutil.ReadFile(BConfig.Listen.TrustCaFile)
+				if err != nil {
+					logs.Info("MutualHTTPS should provide TrustCaFile")
+					return
+				}
+				pool.AppendCertsFromPEM(data)
+				app.Server.TLSConfig = &tls.Config{
+					ClientCAs:  pool,
+					ClientAuth: tls.RequireAndVerifyClientCert,
+				}
+			}
+			if err := app.Server.ListenAndServeTLS(BConfig.Listen.HTTPSCertFile, BConfig.Listen.HTTPSKeyFile); err != nil {
+				logs.Critical("ListenAndServeTLS: ", err)
+				time.Sleep(100 * time.Microsecond)
+				endRunning <- true
+			}
+		}()
+
+	}
+	if BConfig.Listen.EnableHTTP {
+		go func() {
+			app.Server.Addr = addr
+			logs.Info("http server Running on http://%s", app.Server.Addr)
+			if BConfig.Listen.ListenTCP4 {
+				ln, err := net.Listen("tcp4", app.Server.Addr)
+				if err != nil {
+					logs.Critical("ListenAndServe: ", err)
+					time.Sleep(100 * time.Microsecond)
+					endRunning <- true
+					return
+				}
+				if err = app.Server.Serve(ln); err != nil {
+					logs.Critical("ListenAndServe: ", err)
+					time.Sleep(100 * time.Microsecond)
+					endRunning <- true
+					return
+				}
+			} else {
+				if err := app.Server.ListenAndServe(); err != nil {
+					logs.Critical("ListenAndServe: ", err)
+					time.Sleep(100 * time.Microsecond)
+					endRunning <- true
+				}
+			}
+		}()
+	}
+	<-endRunning
+}
+
+// Router adds a patterned controller handler to BeeApp.
+// it's an alias method of App.Router.
+// usage:
+//  simple router
+//  beego.Router("/admin", &admin.UserController{})
+//  beego.Router("/admin/index", &admin.ArticleController{})
+//
+//  regex router
+//
+//  beego.Router("/api/:id([0-9]+)", &controllers.RController{})
+//
+//  custom rules
+//  beego.Router("/api/list",&RestController{},"*:ListFood")
+//  beego.Router("/api/create",&RestController{},"post:CreateFood")
+//  beego.Router("/api/update",&RestController{},"put:UpdateFood")
+//  beego.Router("/api/delete",&RestController{},"delete:DeleteFood")
+func Router(rootpath string, c ControllerInterface, mappingMethods ...string) *App {
+	BeeApp.Handlers.Add(rootpath, c, mappingMethods...)
+	return BeeApp
+}
+
+// UnregisterFixedRoute unregisters the route with the specified fixedRoute. It is particularly useful
+// in web applications that inherit most routes from a base webapp via the underscore
+// import, and aim to overwrite only certain paths.
+// The method parameter can be empty or "*" for all HTTP methods, or a particular
+// method type (e.g. "GET" or "POST") for selective removal.
+//
+// Usage (replace "GET" with "*" for all methods):
+//  beego.UnregisterFixedRoute("/yourpreviouspath", "GET")
+//  beego.Router("/yourpreviouspath", yourControllerAddress, "get:GetNewPage")
+func UnregisterFixedRoute(fixedRoute string, method string) *App {
+	subPaths := splitPath(fixedRoute)
+	if method == "" || method == "*" {
+		for m := range HTTPMETHOD {
+			if _, ok := BeeApp.Handlers.routers[m]; !ok {
+				continue
+			}
+			if BeeApp.Handlers.routers[m].prefix == strings.Trim(fixedRoute, "/ ") {
+				findAndRemoveSingleTree(BeeApp.Handlers.routers[m])
+				continue
+			}
+			findAndRemoveTree(subPaths, BeeApp.Handlers.routers[m], m)
+		}
+		return BeeApp
+	}
+	// Single HTTP method
+	um := strings.ToUpper(method)
+	if _, ok := BeeApp.Handlers.routers[um]; ok {
+		if BeeApp.Handlers.routers[um].prefix == strings.Trim(fixedRoute, "/ ") {
+			findAndRemoveSingleTree(BeeApp.Handlers.routers[um])
+			return BeeApp
+		}
+		findAndRemoveTree(subPaths, BeeApp.Handlers.routers[um], um)
+	}
+	return BeeApp
+}
+
+func findAndRemoveTree(paths []string, entryPointTree *Tree, method string) {
+	for i := range entryPointTree.fixrouters {
+		if entryPointTree.fixrouters[i].prefix == paths[0] {
+			if len(paths) == 1 {
+				if len(entryPointTree.fixrouters[i].fixrouters) > 0 {
+					// If the route had children subtrees, remove just the functional leaf,
+					// to allow children to function as before
+					if len(entryPointTree.fixrouters[i].leaves) > 0 {
+						entryPointTree.fixrouters[i].leaves[0] = nil
+						entryPointTree.fixrouters[i].leaves = entryPointTree.fixrouters[i].leaves[1:]
+					}
+				} else {
+					// Remove the *Tree from the fixrouters slice
+					entryPointTree.fixrouters[i] = nil
+
+					if i == len(entryPointTree.fixrouters)-1 {
+						entryPointTree.fixrouters = entryPointTree.fixrouters[:i]
+					} else {
+						entryPointTree.fixrouters = append(entryPointTree.fixrouters[:i], entryPointTree.fixrouters[i+1:len(entryPointTree.fixrouters)]...)
+					}
+				}
+				return
+			}
+			findAndRemoveTree(paths[1:], entryPointTree.fixrouters[i], method)
+		}
+	}
+}
+
+func findAndRemoveSingleTree(entryPointTree *Tree) {
+	if entryPointTree == nil {
+		return
+	}
+	if len(entryPointTree.fixrouters) > 0 {
+		// If the route had children subtrees, remove just the functional leaf,
+		// to allow children to function as before
+		if len(entryPointTree.leaves) > 0 {
+			entryPointTree.leaves[0] = nil
+			entryPointTree.leaves = entryPointTree.leaves[1:]
+		}
+	}
+}
+
+// Include will generate router file in the router/xxx.go from the controller's comments
+// usage:
+// beego.Include(&BankAccount{}, &OrderController{},&RefundController{},&ReceiptController{})
+// type BankAccount struct{
+//   beego.Controller
+// }
+//
+// register the function
+// func (b *BankAccount)Mapping(){
+//  b.Mapping("ShowAccount" , b.ShowAccount)
+//  b.Mapping("ModifyAccount", b.ModifyAccount)
+//}
+//
+// //@router /account/:id  [get]
+// func (b *BankAccount) ShowAccount(){
+//    //logic
+// }
+//
+//
+// //@router /account/:id  [post]
+// func (b *BankAccount) ModifyAccount(){
+//    //logic
+// }
+//
+// the comments @router url methodlist
+// url support all the function Router's pattern
+// methodlist [get post head put delete options *]
+func Include(cList ...ControllerInterface) *App {
+	BeeApp.Handlers.Include(cList...)
+	return BeeApp
+}
+
+// RESTRouter adds a restful controller handler to BeeApp.
+// its' controller implements beego.ControllerInterface and
+// defines a param "pattern/:objectId" to visit each resource.
+func RESTRouter(rootpath string, c ControllerInterface) *App {
+	Router(rootpath, c)
+	Router(path.Join(rootpath, ":objectId"), c)
+	return BeeApp
+}
+
+// AutoRouter adds defined controller handler to BeeApp.
+// it's same to App.AutoRouter.
+// if beego.AddAuto(&MainContorlller{}) and MainController has methods List and Page,
+// visit the url /main/list to exec List function or /main/page to exec Page function.
+func AutoRouter(c ControllerInterface) *App {
+	BeeApp.Handlers.AddAuto(c)
+	return BeeApp
+}
+
+// AutoPrefix adds controller handler to BeeApp with prefix.
+// it's same to App.AutoRouterWithPrefix.
+// if beego.AutoPrefix("/admin",&MainContorlller{}) and MainController has methods List and Page,
+// visit the url /admin/main/list to exec List function or /admin/main/page to exec Page function.
+func AutoPrefix(prefix string, c ControllerInterface) *App {
+	BeeApp.Handlers.AddAutoPrefix(prefix, c)
+	return BeeApp
+}
+
+// Get used to register router for Get method
+// usage:
+//    beego.Get("/", func(ctx *context.Context){
+//          ctx.Output.Body("hello world")
+//    })
+func Get(rootpath string, f FilterFunc) *App {
+	BeeApp.Handlers.Get(rootpath, f)
+	return BeeApp
+}
+
+// Post used to register router for Post method
+// usage:
+//    beego.Post("/api", func(ctx *context.Context){
+//          ctx.Output.Body("hello world")
+//    })
+func Post(rootpath string, f FilterFunc) *App {
+	BeeApp.Handlers.Post(rootpath, f)
+	return BeeApp
+}
+
+// Delete used to register router for Delete method
+// usage:
+//    beego.Delete("/api", func(ctx *context.Context){
+//          ctx.Output.Body("hello world")
+//    })
+func Delete(rootpath string, f FilterFunc) *App {
+	BeeApp.Handlers.Delete(rootpath, f)
+	return BeeApp
+}
+
+// Put used to register router for Put method
+// usage:
+//    beego.Put("/api", func(ctx *context.Context){
+//          ctx.Output.Body("hello world")
+//    })
+func Put(rootpath string, f FilterFunc) *App {
+	BeeApp.Handlers.Put(rootpath, f)
+	return BeeApp
+}
+
+// Head used to register router for Head method
+// usage:
+//    beego.Head("/api", func(ctx *context.Context){
+//          ctx.Output.Body("hello world")
+//    })
+func Head(rootpath string, f FilterFunc) *App {
+	BeeApp.Handlers.Head(rootpath, f)
+	return BeeApp
+}
+
+// Options used to register router for Options method
+// usage:
+//    beego.Options("/api", func(ctx *context.Context){
+//          ctx.Output.Body("hello world")
+//    })
+func Options(rootpath string, f FilterFunc) *App {
+	BeeApp.Handlers.Options(rootpath, f)
+	return BeeApp
+}
+
+// Patch used to register router for Patch method
+// usage:
+//    beego.Patch("/api", func(ctx *context.Context){
+//          ctx.Output.Body("hello world")
+//    })
+func Patch(rootpath string, f FilterFunc) *App {
+	BeeApp.Handlers.Patch(rootpath, f)
+	return BeeApp
+}
+
+// Any used to register router for all methods
+// usage:
+//    beego.Any("/api", func(ctx *context.Context){
+//          ctx.Output.Body("hello world")
+//    })
+func Any(rootpath string, f FilterFunc) *App {
+	BeeApp.Handlers.Any(rootpath, f)
+	return BeeApp
+}
+
+// Handler used to register a Handler router
+// usage:
+//    beego.Handler("/api", http.HandlerFunc(func (w http.ResponseWriter, r *http.Request) {
+//          fmt.Fprintf(w, "Hello, %q", html.EscapeString(r.URL.Path))
+//    }))
+func Handler(rootpath string, h http.Handler, options ...interface{}) *App {
+	BeeApp.Handlers.Handler(rootpath, h, options...)
+	return BeeApp
+}
+
+// InsertFilter adds a FilterFunc with pattern condition and action constant.
+// The pos means action constant including
+// beego.BeforeStatic, beego.BeforeRouter, beego.BeforeExec, beego.AfterExec and beego.FinishRouter.
+// The bool params is for setting the returnOnOutput value (false allows multiple filters to execute)
+func InsertFilter(pattern string, pos int, filter FilterFunc, params ...bool) *App {
+	BeeApp.Handlers.InsertFilter(pattern, pos, filter, params...)
+	return BeeApp
+}

pkg/beego.go

@@ -0,0 +1,123 @@
+// Copyright 2014 beego Author. All Rights Reserved.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//      http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package beego
+
+import (
+	"os"
+	"path/filepath"
+	"strconv"
+	"strings"
+)
+
+const (
+	// VERSION represent beego web framework version.
+	VERSION = "1.12.2"
+
+	// DEV is for develop
+	DEV = "dev"
+	// PROD is for production
+	PROD = "prod"
+)
+
+// M is Map shortcut
+type M map[string]interface{}
+
+// Hook function to run
+type hookfunc func() error
+
+var (
+	hooks = make([]hookfunc, 0) //hook function slice to store the hookfunc
+)
+
+// AddAPPStartHook is used to register the hookfunc
+// The hookfuncs will run in beego.Run()
+// such as initiating session , starting middleware , building template, starting admin control and so on.
+func AddAPPStartHook(hf ...hookfunc) {
+	hooks = append(hooks, hf...)
+}
+
+// Run beego application.
+// beego.Run() default run on HttpPort
+// beego.Run("localhost")
+// beego.Run(":8089")
+// beego.Run("127.0.0.1:8089")
+func Run(params ...string) {
+
+	initBeforeHTTPRun()
+
+	if len(params) > 0 && params[0] != "" {
+		strs := strings.Split(params[0], ":")
+		if len(strs) > 0 && strs[0] != "" {
+			BConfig.Listen.HTTPAddr = strs[0]
+		}
+		if len(strs) > 1 && strs[1] != "" {
+			BConfig.Listen.HTTPPort, _ = strconv.Atoi(strs[1])
+		}
+
+		BConfig.Listen.Domains = params
+	}
+
+	BeeApp.Run()
+}
+
+// RunWithMiddleWares Run beego application with middlewares.
+func RunWithMiddleWares(addr string, mws ...MiddleWare) {
+	initBeforeHTTPRun()
+
+	strs := strings.Split(addr, ":")
+	if len(strs) > 0 && strs[0] != "" {
+		BConfig.Listen.HTTPAddr = strs[0]
+		BConfig.Listen.Domains = []string{strs[0]}
+	}
+	if len(strs) > 1 && strs[1] != "" {
+		BConfig.Listen.HTTPPort, _ = strconv.Atoi(strs[1])
+	}
+
+	BeeApp.Run(mws...)
+}
+
+func initBeforeHTTPRun() {
+	//init hooks
+	AddAPPStartHook(
+		registerMime,
+		registerDefaultErrorHandler,
+		registerSession,
+		registerTemplate,
+		registerAdmin,
+		registerGzip,
+	)
+
+	for _, hk := range hooks {
+		if err := hk(); err != nil {
+			panic(err)
+		}
+	}
+}
+
+// TestBeegoInit is for test package init
+func TestBeegoInit(ap string) {
+	path := filepath.Join(ap, "conf", "app.conf")
+	os.Chdir(ap)
+	InitBeegoBeforeTest(path)
+}
+
+// InitBeegoBeforeTest is for test package init
+func InitBeegoBeforeTest(appConfigPath string) {
+	if err := LoadAppConfig(appConfigProvider, appConfigPath); err != nil {
+		panic(err)
+	}
+	BConfig.RunMode = "test"
+	initBeforeHTTPRun()
+}

pkg/build_info.go

@@ -0,0 +1,27 @@
+// Copyright 2020 astaxie
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package beego
+
+var (
+	BuildVersion string
+	BuildGitRevision string
+	BuildStatus string
+	BuildTag string
+	BuildTime string
+
+	GoVersion string
+
+	GitBranch string
+)

pkg/cache/README.md

@@ -0,0 +1,59 @@
+## cache
+cache is a Go cache manager. It can use many cache adapters. The repo is inspired by `database/sql` .
+
+
+## How to install?
+
+	go get github.com/astaxie/beego/cache
+
+
+## What adapters are supported?
+
+As of now this cache support memory, Memcache and Redis.
+
+
+## How to use it?
+
+First you must import it
+
+	import (
+		"github.com/astaxie/beego/cache"
+	)
+
+Then init a Cache (example with memory adapter)
+
+	bm, err := cache.NewCache("memory", `{"interval":60}`)	
+
+Use it like this:	
+	
+	bm.Put("astaxie", 1, 10 * time.Second)
+	bm.Get("astaxie")
+	bm.IsExist("astaxie")
+	bm.Delete("astaxie")
+
+
+## Memory adapter
+
+Configure memory adapter like this:
+
+	{"interval":60}
+
+interval means the gc time. The cache will check at each time interval, whether item has expired.
+
+
+## Memcache adapter
+
+Memcache adapter use the [gomemcache](http://github.com/bradfitz/gomemcache) client.
+
+Configure like this:
+
+	{"conn":"127.0.0.1:11211"}
+
+
+## Redis adapter
+
+Redis adapter use the [redigo](http://github.com/gomodule/redigo) client.
+
+Configure like this:
+
+	{"conn":":6039"}

pkg/cache/cache.go

@@ -0,0 +1,103 @@
+// Copyright 2014 beego Author. All Rights Reserved.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//      http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+// Package cache provide a Cache interface and some implement engine
+// Usage:
+//
+// import(
+//   "github.com/astaxie/beego/cache"
+// )
+//
+// bm, err := cache.NewCache("memory", `{"interval":60}`)
+//
+// Use it like this:
+//
+//	bm.Put("astaxie", 1, 10 * time.Second)
+//	bm.Get("astaxie")
+//	bm.IsExist("astaxie")
+//	bm.Delete("astaxie")
+//
+//  more docs http://beego.me/docs/module/cache.md
+package cache
+
+import (
+	"fmt"
+	"time"
+)
+
+// Cache interface contains all behaviors for cache adapter.
+// usage:
+//	cache.Register("file",cache.NewFileCache) // this operation is run in init method of file.go.
+//	c,err := cache.NewCache("file","{....}")
+//	c.Put("key",value, 3600 * time.Second)
+//	v := c.Get("key")
+//
+//	c.Incr("counter")  // now is 1
+//	c.Incr("counter")  // now is 2
+//	count := c.Get("counter").(int)
+type Cache interface {
+	// get cached value by key.
+	Get(key string) interface{}
+	// GetMulti is a batch version of Get.
+	GetMulti(keys []string) []interface{}
+	// set cached value with key and expire time.
+	Put(key string, val interface{}, timeout time.Duration) error
+	// delete cached value by key.
+	Delete(key string) error
+	// increase cached int value by key, as a counter.
+	Incr(key string) error
+	// decrease cached int value by key, as a counter.
+	Decr(key string) error
+	// check if cached value exists or not.
+	IsExist(key string) bool
+	// clear all cache.
+	ClearAll() error
+	// start gc routine based on config string settings.
+	StartAndGC(config string) error
+}
+
+// Instance is a function create a new Cache Instance
+type Instance func() Cache
+
+var adapters = make(map[string]Instance)
+
+// Register makes a cache adapter available by the adapter name.
+// If Register is called twice with the same name or if driver is nil,
+// it panics.
+func Register(name string, adapter Instance) {
+	if adapter == nil {
+		panic("cache: Register adapter is nil")
+	}
+	if _, ok := adapters[name]; ok {
+		panic("cache: Register called twice for adapter " + name)
+	}
+	adapters[name] = adapter
+}
+
+// NewCache Create a new cache driver by adapter name and config string.
+// config need to be correct JSON as string: {"interval":360}.
+// it will start gc automatically.
+func NewCache(adapterName, config string) (adapter Cache, err error) {
+	instanceFunc, ok := adapters[adapterName]
+	if !ok {
+		err = fmt.Errorf("cache: unknown adapter name %q (forgot to import?)", adapterName)
+		return
+	}
+	adapter = instanceFunc()
+	err = adapter.StartAndGC(config)
+	if err != nil {
+		adapter = nil
+	}
+	return
+}

pkg/cache/cache_test.go

@@ -0,0 +1,191 @@
+// Copyright 2014 beego Author. All Rights Reserved.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//      http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package cache
+
+import (
+	"os"
+	"sync"
+	"testing"
+	"time"
+)
+
+func TestCacheIncr(t *testing.T) {
+	bm, err := NewCache("memory", `{"interval":20}`)
+	if err != nil {
+		t.Error("init err")
+	}
+	//timeoutDuration := 10 * time.Second
+
+	bm.Put("edwardhey", 0, time.Second*20)
+	wg := sync.WaitGroup{}
+	wg.Add(10)
+	for i := 0; i < 10; i++ {
+		go func() {
+			defer wg.Done()
+			bm.Incr("edwardhey")
+		}()
+	}
+	wg.Wait()
+	if bm.Get("edwardhey").(int) != 10 {
+		t.Error("Incr err")
+	}
+}
+
+func TestCache(t *testing.T) {
+	bm, err := NewCache("memory", `{"interval":20}`)
+	if err != nil {
+		t.Error("init err")
+	}
+	timeoutDuration := 10 * time.Second
+	if err = bm.Put("astaxie", 1, timeoutDuration); err != nil {
+		t.Error("set Error", err)
+	}
+	if !bm.IsExist("astaxie") {
+		t.Error("check err")
+	}
+
+	if v := bm.Get("astaxie"); v.(int) != 1 {
+		t.Error("get err")
+	}
+
+	time.Sleep(30 * time.Second)
+
+	if bm.IsExist("astaxie") {
+		t.Error("check err")
+	}
+
+	if err = bm.Put("astaxie", 1, timeoutDuration); err != nil {
+		t.Error("set Error", err)
+	}
+
+	if err = bm.Incr("astaxie"); err != nil {
+		t.Error("Incr Error", err)
+	}
+
+	if v := bm.Get("astaxie"); v.(int) != 2 {
+		t.Error("get err")
+	}
+
+	if err = bm.Decr("astaxie"); err != nil {
+		t.Error("Decr Error", err)
+	}
+
+	if v := bm.Get("astaxie"); v.(int) != 1 {
+		t.Error("get err")
+	}
+	bm.Delete("astaxie")
+	if bm.IsExist("astaxie") {
+		t.Error("delete err")
+	}
+
+	//test GetMulti
+	if err = bm.Put("astaxie", "author", timeoutDuration); err != nil {
+		t.Error("set Error", err)
+	}
+	if !bm.IsExist("astaxie") {
+		t.Error("check err")
+	}
+	if v := bm.Get("astaxie"); v.(string) != "author" {
+		t.Error("get err")
+	}
+
+	if err = bm.Put("astaxie1", "author1", timeoutDuration); err != nil {
+		t.Error("set Error", err)
+	}
+	if !bm.IsExist("astaxie1") {
+		t.Error("check err")
+	}
+
+	vv := bm.GetMulti([]string{"astaxie", "astaxie1"})
+	if len(vv) != 2 {
+		t.Error("GetMulti ERROR")
+	}
+	if vv[0].(string) != "author" {
+		t.Error("GetMulti ERROR")
+	}
+	if vv[1].(string) != "author1" {
+		t.Error("GetMulti ERROR")
+	}
+}
+
+func TestFileCache(t *testing.T) {
+	bm, err := NewCache("file", `{"CachePath":"cache","FileSuffix":".bin","DirectoryLevel":"2","EmbedExpiry":"0"}`)
+	if err != nil {
+		t.Error("init err")
+	}
+	timeoutDuration := 10 * time.Second
+	if err = bm.Put("astaxie", 1, timeoutDuration); err != nil {
+		t.Error("set Error", err)
+	}
+	if !bm.IsExist("astaxie") {
+		t.Error("check err")
+	}
+
+	if v := bm.Get("astaxie"); v.(int) != 1 {
+		t.Error("get err")
+	}
+
+	if err = bm.Incr("astaxie"); err != nil {
+		t.Error("Incr Error", err)
+	}
+
+	if v := bm.Get("astaxie"); v.(int) != 2 {
+		t.Error("get err")
+	}
+
+	if err = bm.Decr("astaxie"); err != nil {
+		t.Error("Decr Error", err)
+	}
+
+	if v := bm.Get("astaxie"); v.(int) != 1 {
+		t.Error("get err")
+	}
+	bm.Delete("astaxie")
+	if bm.IsExist("astaxie") {
+		t.Error("delete err")
+	}
+
+	//test string
+	if err = bm.Put("astaxie", "author", timeoutDuration); err != nil {
+		t.Error("set Error", err)
+	}
+	if !bm.IsExist("astaxie") {
+		t.Error("check err")
+	}
+	if v := bm.Get("astaxie"); v.(string) != "author" {
+		t.Error("get err")
+	}
+
+	//test GetMulti
+	if err = bm.Put("astaxie1", "author1", timeoutDuration); err != nil {
+		t.Error("set Error", err)
+	}
+	if !bm.IsExist("astaxie1") {
+		t.Error("check err")
+	}
+
+	vv := bm.GetMulti([]string{"astaxie", "astaxie1"})
+	if len(vv) != 2 {
+		t.Error("GetMulti ERROR")
+	}
+	if vv[0].(string) != "author" {
+		t.Error("GetMulti ERROR")
+	}
+	if vv[1].(string) != "author1" {
+		t.Error("GetMulti ERROR")
+	}
+
+	os.RemoveAll("cache")
+}

pkg/cache/conv.go

@@ -0,0 +1,100 @@
+// Copyright 2014 beego Author. All Rights Reserved.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//      http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package cache
+
+import (
+	"fmt"
+	"strconv"
+)
+
+// GetString convert interface to string.
+func GetString(v interface{}) string {
+	switch result := v.(type) {
+	case string:
+		return result
+	case []byte:
+		return string(result)
+	default:
+		if v != nil {
+			return fmt.Sprint(result)
+		}
+	}
+	return ""
+}
+
+// GetInt convert interface to int.
+func GetInt(v interface{}) int {
+	switch result := v.(type) {
+	case int:
+		return result
+	case int32:
+		return int(result)
+	case int64:
+		return int(result)
+	default:
+		if d := GetString(v); d != "" {
+			value, _ := strconv.Atoi(d)
+			return value
+		}
+	}
+	return 0
+}
+
+// GetInt64 convert interface to int64.
+func GetInt64(v interface{}) int64 {
+	switch result := v.(type) {
+	case int:
+		return int64(result)
+	case int32:
+		return int64(result)
+	case int64:
+		return result
+	default:
+
+		if d := GetString(v); d != "" {
+			value, _ := strconv.ParseInt(d, 10, 64)
+			return value
+		}
+	}
+	return 0
+}
+
+// GetFloat64 convert interface to float64.
+func GetFloat64(v interface{}) float64 {
+	switch result := v.(type) {
+	case float64:
+		return result
+	default:
+		if d := GetString(v); d != "" {
+			value, _ := strconv.ParseFloat(d, 64)
+			return value
+		}
+	}
+	return 0
+}
+
+// GetBool convert interface to bool.
+func GetBool(v interface{}) bool {
+	switch result := v.(type) {
+	case bool:
+		return result
+	default:
+		if d := GetString(v); d != "" {
+			value, _ := strconv.ParseBool(d)
+			return value
+		}
+	}
+	return false
+}

pkg/cache/conv_test.go

@@ -0,0 +1,143 @@
+// Copyright 2014 beego Author. All Rights Reserved.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//      http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package cache
+
+import (
+	"testing"
+)
+
+func TestGetString(t *testing.T) {
+	var t1 = "test1"
+	if "test1" != GetString(t1) {
+		t.Error("get string from string error")
+	}
+	var t2 = []byte("test2")
+	if "test2" != GetString(t2) {
+		t.Error("get string from byte array error")
+	}
+	var t3 = 1
+	if "1" != GetString(t3) {
+		t.Error("get string from int error")
+	}
+	var t4 int64 = 1
+	if "1" != GetString(t4) {
+		t.Error("get string from int64 error")
+	}
+	var t5 = 1.1
+	if "1.1" != GetString(t5) {
+		t.Error("get string from float64 error")
+	}
+
+	if "" != GetString(nil) {
+		t.Error("get string from nil error")
+	}
+}
+
+func TestGetInt(t *testing.T) {
+	var t1 = 1
+	if 1 != GetInt(t1) {
+		t.Error("get int from int error")
+	}
+	var t2 int32 = 32
+	if 32 != GetInt(t2) {
+		t.Error("get int from int32 error")
+	}
+	var t3 int64 = 64
+	if 64 != GetInt(t3) {
+		t.Error("get int from int64 error")
+	}
+	var t4 = "128"
+	if 128 != GetInt(t4) {
+		t.Error("get int from num string error")
+	}
+	if 0 != GetInt(nil) {
+		t.Error("get int from nil error")
+	}
+}
+
+func TestGetInt64(t *testing.T) {
+	var i int64 = 1
+	var t1 = 1
+	if i != GetInt64(t1) {
+		t.Error("get int64 from int error")
+	}
+	var t2 int32 = 1
+	if i != GetInt64(t2) {
+		t.Error("get int64 from int32 error")
+	}
+	var t3 int64 = 1
+	if i != GetInt64(t3) {
+		t.Error("get int64 from int64 error")
+	}
+	var t4 = "1"
+	if i != GetInt64(t4) {
+		t.Error("get int64 from num string error")
+	}
+	if 0 != GetInt64(nil) {
+		t.Error("get int64 from nil")
+	}
+}
+
+func TestGetFloat64(t *testing.T) {
+	var f = 1.11
+	var t1 float32 = 1.11
+	if f != GetFloat64(t1) {
+		t.Error("get float64 from float32 error")
+	}
+	var t2 = 1.11
+	if f != GetFloat64(t2) {
+		t.Error("get float64 from float64 error")
+	}
+	var t3 = "1.11"
+	if f != GetFloat64(t3) {
+		t.Error("get float64 from string error")
+	}
+
+	var f2 float64 = 1
+	var t4 = 1
+	if f2 != GetFloat64(t4) {
+		t.Error("get float64 from int error")
+	}
+
+	if 0 != GetFloat64(nil) {
+		t.Error("get float64 from nil error")
+	}
+}
+
+func TestGetBool(t *testing.T) {
+	var t1 = true
+	if !GetBool(t1) {
+		t.Error("get bool from bool error")
+	}
+	var t2 = "true"
+	if !GetBool(t2) {
+		t.Error("get bool from string error")
+	}
+	if GetBool(nil) {
+		t.Error("get bool from nil error")
+	}
+}
+
+func byteArrayEquals(a []byte, b []byte) bool {
+	if len(a) != len(b) {
+		return false
+	}
+	for i, v := range a {
+		if v != b[i] {
+			return false
+		}
+	}
+	return true
+}

pkg/cache/file.go

@@ -0,0 +1,258 @@
+// Copyright 2014 beego Author. All Rights Reserved.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//      http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package cache
+
+import (
+	"bytes"
+	"crypto/md5"
+	"encoding/gob"
+	"encoding/hex"
+	"encoding/json"
+	"fmt"
+	"io"
+	"io/ioutil"
+	"os"
+	"path/filepath"
+	"reflect"
+	"strconv"
+	"time"
+)
+
+// FileCacheItem is basic unit of file cache adapter.
+// it contains data and expire time.
+type FileCacheItem struct {
+	Data       interface{}
+	Lastaccess time.Time
+	Expired    time.Time
+}
+
+// FileCache Config
+var (
+	FileCachePath           = "cache"     // cache directory
+	FileCacheFileSuffix     = ".bin"      // cache file suffix
+	FileCacheDirectoryLevel = 2           // cache file deep level if auto generated cache files.
+	FileCacheEmbedExpiry    time.Duration // cache expire time, default is no expire forever.
+)
+
+// FileCache is cache adapter for file storage.
+type FileCache struct {
+	CachePath      string
+	FileSuffix     string
+	DirectoryLevel int
+	EmbedExpiry    int
+}
+
+// NewFileCache Create new file cache with no config.
+// the level and expiry need set in method StartAndGC as config string.
+func NewFileCache() Cache {
+	//    return &FileCache{CachePath:FileCachePath, FileSuffix:FileCacheFileSuffix}
+	return &FileCache{}
+}
+
+// StartAndGC will start and begin gc for file cache.
+// the config need to be like {CachePath:"/cache","FileSuffix":".bin","DirectoryLevel":"2","EmbedExpiry":"0"}
+func (fc *FileCache) StartAndGC(config string) error {
+
+	cfg := make(map[string]string)
+	err := json.Unmarshal([]byte(config), &cfg)
+	if err != nil {
+		return err
+	}
+	if _, ok := cfg["CachePath"]; !ok {
+		cfg["CachePath"] = FileCachePath
+	}
+	if _, ok := cfg["FileSuffix"]; !ok {
+		cfg["FileSuffix"] = FileCacheFileSuffix
+	}
+	if _, ok := cfg["DirectoryLevel"]; !ok {
+		cfg["DirectoryLevel"] = strconv.Itoa(FileCacheDirectoryLevel)
+	}
+	if _, ok := cfg["EmbedExpiry"]; !ok {
+		cfg["EmbedExpiry"] = strconv.FormatInt(int64(FileCacheEmbedExpiry.Seconds()), 10)
+	}
+	fc.CachePath = cfg["CachePath"]
+	fc.FileSuffix = cfg["FileSuffix"]
+	fc.DirectoryLevel, _ = strconv.Atoi(cfg["DirectoryLevel"])
+	fc.EmbedExpiry, _ = strconv.Atoi(cfg["EmbedExpiry"])
+
+	fc.Init()
+	return nil
+}
+
+// Init will make new dir for file cache if not exist.
+func (fc *FileCache) Init() {
+	if ok, _ := exists(fc.CachePath); !ok { // todo : error handle
+		_ = os.MkdirAll(fc.CachePath, os.ModePerm) // todo : error handle
+	}
+}
+
+// get cached file name. it's md5 encoded.
+func (fc *FileCache) getCacheFileName(key string) string {
+	m := md5.New()
+	io.WriteString(m, key)
+	keyMd5 := hex.EncodeToString(m.Sum(nil))
+	cachePath := fc.CachePath
+	switch fc.DirectoryLevel {
+	case 2:
+		cachePath = filepath.Join(cachePath, keyMd5[0:2], keyMd5[2:4])
+	case 1:
+		cachePath = filepath.Join(cachePath, keyMd5[0:2])
+	}
+
+	if ok, _ := exists(cachePath); !ok { // todo : error handle
+		_ = os.MkdirAll(cachePath, os.ModePerm) // todo : error handle
+	}
+
+	return filepath.Join(cachePath, fmt.Sprintf("%s%s", keyMd5, fc.FileSuffix))
+}
+
+// Get value from file cache.
+// if non-exist or expired, return empty string.
+func (fc *FileCache) Get(key string) interface{} {
+	fileData, err := FileGetContents(fc.getCacheFileName(key))
+	if err != nil {
+		return ""
+	}
+	var to FileCacheItem
+	GobDecode(fileData, &to)
+	if to.Expired.Before(time.Now()) {
+		return ""
+	}
+	return to.Data
+}
+
+// GetMulti gets values from file cache.
+// if non-exist or expired, return empty string.
+func (fc *FileCache) GetMulti(keys []string) []interface{} {
+	var rc []interface{}
+	for _, key := range keys {
+		rc = append(rc, fc.Get(key))
+	}
+	return rc
+}
+
+// Put value into file cache.
+// timeout means how long to keep this file, unit of ms.
+// if timeout equals fc.EmbedExpiry(default is 0), cache this item forever.
+func (fc *FileCache) Put(key string, val interface{}, timeout time.Duration) error {
+	gob.Register(val)
+
+	item := FileCacheItem{Data: val}
+	if timeout == time.Duration(fc.EmbedExpiry) {
+		item.Expired = time.Now().Add((86400 * 365 * 10) * time.Second) // ten years
+	} else {
+		item.Expired = time.Now().Add(timeout)
+	}
+	item.Lastaccess = time.Now()
+	data, err := GobEncode(item)
+	if err != nil {
+		return err
+	}
+	return FilePutContents(fc.getCacheFileName(key), data)
+}
+
+// Delete file cache value.
+func (fc *FileCache) Delete(key string) error {
+	filename := fc.getCacheFileName(key)
+	if ok, _ := exists(filename); ok {
+		return os.Remove(filename)
+	}
+	return nil
+}
+
+// Incr will increase cached int value.
+// fc value is saving forever unless Delete.
+func (fc *FileCache) Incr(key string) error {
+	data := fc.Get(key)
+	var incr int
+	if reflect.TypeOf(data).Name() != "int" {
+		incr = 0
+	} else {
+		incr = data.(int) + 1
+	}
+	fc.Put(key, incr, time.Duration(fc.EmbedExpiry))
+	return nil
+}
+
+// Decr will decrease cached int value.
+func (fc *FileCache) Decr(key string) error {
+	data := fc.Get(key)
+	var decr int
+	if reflect.TypeOf(data).Name() != "int" || data.(int)-1 <= 0 {
+		decr = 0
+	} else {
+		decr = data.(int) - 1
+	}
+	fc.Put(key, decr, time.Duration(fc.EmbedExpiry))
+	return nil
+}
+
+// IsExist check value is exist.
+func (fc *FileCache) IsExist(key string) bool {
+	ret, _ := exists(fc.getCacheFileName(key))
+	return ret
+}
+
+// ClearAll will clean cached files.
+// not implemented.
+func (fc *FileCache) ClearAll() error {
+	return nil
+}
+
+// check file exist.
+func exists(path string) (bool, error) {
+	_, err := os.Stat(path)
+	if err == nil {
+		return true, nil
+	}
+	if os.IsNotExist(err) {
+		return false, nil
+	}
+	return false, err
+}
+
+// FileGetContents Get bytes to file.
+// if non-exist, create this file.
+func FileGetContents(filename string) (data []byte, e error) {
+	return ioutil.ReadFile(filename)
+}
+
+// FilePutContents Put bytes to file.
+// if non-exist, create this file.
+func FilePutContents(filename string, content []byte) error {
+	return ioutil.WriteFile(filename, content, os.ModePerm)
+}
+
+// GobEncode Gob encodes file cache item.
+func GobEncode(data interface{}) ([]byte, error) {
+	buf := bytes.NewBuffer(nil)
+	enc := gob.NewEncoder(buf)
+	err := enc.Encode(data)
+	if err != nil {
+		return nil, err
+	}
+	return buf.Bytes(), err
+}
+
+// GobDecode Gob decodes file cache item.
+func GobDecode(data []byte, to *FileCacheItem) error {
+	buf := bytes.NewBuffer(data)
+	dec := gob.NewDecoder(buf)
+	return dec.Decode(&to)
+}
+
+func init() {
+	Register("file", NewFileCache)
+}

pkg/cache/memcache/memcache.go

@@ -0,0 +1,188 @@
+// Copyright 2014 beego Author. All Rights Reserved.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//      http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+// Package memcache for cache provider
+//
+// depend on github.com/bradfitz/gomemcache/memcache
+//
+// go install github.com/bradfitz/gomemcache/memcache
+//
+// Usage:
+// import(
+//   _ "github.com/astaxie/beego/cache/memcache"
+//   "github.com/astaxie/beego/cache"
+// )
+//
+//  bm, err := cache.NewCache("memcache", `{"conn":"127.0.0.1:11211"}`)
+//
+//  more docs http://beego.me/docs/module/cache.md
+package memcache
+
+import (
+	"encoding/json"
+	"errors"
+	"strings"
+	"time"
+
+	"github.com/astaxie/beego/cache"
+	"github.com/bradfitz/gomemcache/memcache"
+)
+
+// Cache Memcache adapter.
+type Cache struct {
+	conn     *memcache.Client
+	conninfo []string
+}
+
+// NewMemCache create new memcache adapter.
+func NewMemCache() cache.Cache {
+	return &Cache{}
+}
+
+// Get get value from memcache.
+func (rc *Cache) Get(key string) interface{} {
+	if rc.conn == nil {
+		if err := rc.connectInit(); err != nil {
+			return err
+		}
+	}
+	if item, err := rc.conn.Get(key); err == nil {
+		return item.Value
+	}
+	return nil
+}
+
+// GetMulti get value from memcache.
+func (rc *Cache) GetMulti(keys []string) []interface{} {
+	size := len(keys)
+	var rv []interface{}
+	if rc.conn == nil {
+		if err := rc.connectInit(); err != nil {
+			for i := 0; i < size; i++ {
+				rv = append(rv, err)
+			}
+			return rv
+		}
+	}
+	mv, err := rc.conn.GetMulti(keys)
+	if err == nil {
+		for _, v := range mv {
+			rv = append(rv, v.Value)
+		}
+		return rv
+	}
+	for i := 0; i < size; i++ {
+		rv = append(rv, err)
+	}
+	return rv
+}
+
+// Put put value to memcache.
+func (rc *Cache) Put(key string, val interface{}, timeout time.Duration) error {
+	if rc.conn == nil {
+		if err := rc.connectInit(); err != nil {
+			return err
+		}
+	}
+	item := memcache.Item{Key: key, Expiration: int32(timeout / time.Second)}
+	if v, ok := val.([]byte); ok {
+		item.Value = v
+	} else if str, ok := val.(string); ok {
+		item.Value = []byte(str)
+	} else {
+		return errors.New("val only support string and []byte")
+	}
+	return rc.conn.Set(&item)
+}
+
+// Delete delete value in memcache.
+func (rc *Cache) Delete(key string) error {
+	if rc.conn == nil {
+		if err := rc.connectInit(); err != nil {
+			return err
+		}
+	}
+	return rc.conn.Delete(key)
+}
+
+// Incr increase counter.
+func (rc *Cache) Incr(key string) error {
+	if rc.conn == nil {
+		if err := rc.connectInit(); err != nil {
+			return err
+		}
+	}
+	_, err := rc.conn.Increment(key, 1)
+	return err
+}
+
+// Decr decrease counter.
+func (rc *Cache) Decr(key string) error {
+	if rc.conn == nil {
+		if err := rc.connectInit(); err != nil {
+			return err
+		}
+	}
+	_, err := rc.conn.Decrement(key, 1)
+	return err
+}
+
+// IsExist check value exists in memcache.
+func (rc *Cache) IsExist(key string) bool {
+	if rc.conn == nil {
+		if err := rc.connectInit(); err != nil {
+			return false
+		}
+	}
+	_, err := rc.conn.Get(key)
+	return err == nil
+}
+
+// ClearAll clear all cached in memcache.
+func (rc *Cache) ClearAll() error {
+	if rc.conn == nil {
+		if err := rc.connectInit(); err != nil {
+			return err
+		}
+	}
+	return rc.conn.FlushAll()
+}
+
+// StartAndGC start memcache adapter.
+// config string is like {"conn":"connection info"}.
+// if connecting error, return.
+func (rc *Cache) StartAndGC(config string) error {
+	var cf map[string]string
+	json.Unmarshal([]byte(config), &cf)
+	if _, ok := cf["conn"]; !ok {
+		return errors.New("config has no conn key")
+	}
+	rc.conninfo = strings.Split(cf["conn"], ";")
+	if rc.conn == nil {
+		if err := rc.connectInit(); err != nil {
+			return err
+		}
+	}
+	return nil
+}
+
+// connect to memcache and keep the connection.
+func (rc *Cache) connectInit() error {
+	rc.conn = memcache.New(rc.conninfo...)
+	return nil
+}
+
+func init() {
+	cache.Register("memcache", NewMemCache)
+}

pkg/cache/memcache/memcache_test.go

@@ -0,0 +1,108 @@
+// Copyright 2014 beego Author. All Rights Reserved.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//      http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package memcache
+
+import (
+	_ "github.com/bradfitz/gomemcache/memcache"
+
+	"strconv"
+	"testing"
+	"time"
+
+	"github.com/astaxie/beego/cache"
+)
+
+func TestMemcacheCache(t *testing.T) {
+	bm, err := cache.NewCache("memcache", `{"conn": "127.0.0.1:11211"}`)
+	if err != nil {
+		t.Error("init err")
+	}
+	timeoutDuration := 10 * time.Second
+	if err = bm.Put("astaxie", "1", timeoutDuration); err != nil {
+		t.Error("set Error", err)
+	}
+	if !bm.IsExist("astaxie") {
+		t.Error("check err")
+	}
+
+	time.Sleep(11 * time.Second)
+
+	if bm.IsExist("astaxie") {
+		t.Error("check err")
+	}
+	if err = bm.Put("astaxie", "1", timeoutDuration); err != nil {
+		t.Error("set Error", err)
+	}
+
+	if v, err := strconv.Atoi(string(bm.Get("astaxie").([]byte))); err != nil || v != 1 {
+		t.Error("get err")
+	}
+
+	if err = bm.Incr("astaxie"); err != nil {
+		t.Error("Incr Error", err)
+	}
+
+	if v, err := strconv.Atoi(string(bm.Get("astaxie").([]byte))); err != nil || v != 2 {
+		t.Error("get err")
+	}
+
+	if err = bm.Decr("astaxie"); err != nil {
+		t.Error("Decr Error", err)
+	}
+
+	if v, err := strconv.Atoi(string(bm.Get("astaxie").([]byte))); err != nil || v != 1 {
+		t.Error("get err")
+	}
+	bm.Delete("astaxie")
+	if bm.IsExist("astaxie") {
+		t.Error("delete err")
+	}
+
+	//test string
+	if err = bm.Put("astaxie", "author", timeoutDuration); err != nil {
+		t.Error("set Error", err)
+	}
+	if !bm.IsExist("astaxie") {
+		t.Error("check err")
+	}
+
+	if v := bm.Get("astaxie").([]byte); string(v) != "author" {
+		t.Error("get err")
+	}
+
+	//test GetMulti
+	if err = bm.Put("astaxie1", "author1", timeoutDuration); err != nil {
+		t.Error("set Error", err)
+	}
+	if !bm.IsExist("astaxie1") {
+		t.Error("check err")
+	}
+
+	vv := bm.GetMulti([]string{"astaxie", "astaxie1"})
+	if len(vv) != 2 {
+		t.Error("GetMulti ERROR")
+	}
+	if string(vv[0].([]byte)) != "author" && string(vv[0].([]byte)) != "author1" {
+		t.Error("GetMulti ERROR")
+	}
+	if string(vv[1].([]byte)) != "author1" && string(vv[1].([]byte)) != "author" {
+		t.Error("GetMulti ERROR")
+	}
+
+	// test clear all
+	if err = bm.ClearAll(); err != nil {
+		t.Error("clear all err")
+	}
+}

pkg/cache/memory.go

@@ -0,0 +1,256 @@
+// Copyright 2014 beego Author. All Rights Reserved.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//      http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package cache
+
+import (
+	"encoding/json"
+	"errors"
+	"sync"
+	"time"
+)
+
+var (
+	// DefaultEvery means the clock time of recycling the expired cache items in memory.
+	DefaultEvery = 60 // 1 minute
+)
+
+// MemoryItem store memory cache item.
+type MemoryItem struct {
+	val         interface{}
+	createdTime time.Time
+	lifespan    time.Duration
+}
+
+func (mi *MemoryItem) isExpire() bool {
+	// 0 means forever
+	if mi.lifespan == 0 {
+		return false
+	}
+	return time.Now().Sub(mi.createdTime) > mi.lifespan
+}
+
+// MemoryCache is Memory cache adapter.
+// it contains a RW locker for safe map storage.
+type MemoryCache struct {
+	sync.RWMutex
+	dur   time.Duration
+	items map[string]*MemoryItem
+	Every int // run an expiration check Every clock time
+}
+
+// NewMemoryCache returns a new MemoryCache.
+func NewMemoryCache() Cache {
+	cache := MemoryCache{items: make(map[string]*MemoryItem)}
+	return &cache
+}
+
+// Get cache from memory.
+// if non-existed or expired, return nil.
+func (bc *MemoryCache) Get(name string) interface{} {
+	bc.RLock()
+	defer bc.RUnlock()
+	if itm, ok := bc.items[name]; ok {
+		if itm.isExpire() {
+			return nil
+		}
+		return itm.val
+	}
+	return nil
+}
+
+// GetMulti gets caches from memory.
+// if non-existed or expired, return nil.
+func (bc *MemoryCache) GetMulti(names []string) []interface{} {
+	var rc []interface{}
+	for _, name := range names {
+		rc = append(rc, bc.Get(name))
+	}
+	return rc
+}
+
+// Put cache to memory.
+// if lifespan is 0, it will be forever till restart.
+func (bc *MemoryCache) Put(name string, value interface{}, lifespan time.Duration) error {
+	bc.Lock()
+	defer bc.Unlock()
+	bc.items[name] = &MemoryItem{
+		val:         value,
+		createdTime: time.Now(),
+		lifespan:    lifespan,
+	}
+	return nil
+}
+
+// Delete cache in memory.
+func (bc *MemoryCache) Delete(name string) error {
+	bc.Lock()
+	defer bc.Unlock()
+	if _, ok := bc.items[name]; !ok {
+		return errors.New("key not exist")
+	}
+	delete(bc.items, name)
+	if _, ok := bc.items[name]; ok {
+		return errors.New("delete key error")
+	}
+	return nil
+}
+
+// Incr increase cache counter in memory.
+// it supports int,int32,int64,uint,uint32,uint64.
+func (bc *MemoryCache) Incr(key string) error {
+	bc.Lock()
+	defer bc.Unlock()
+	itm, ok := bc.items[key]
+	if !ok {
+		return errors.New("key not exist")
+	}
+	switch val := itm.val.(type) {
+	case int:
+		itm.val = val + 1
+	case int32:
+		itm.val = val + 1
+	case int64:
+		itm.val = val + 1
+	case uint:
+		itm.val = val + 1
+	case uint32:
+		itm.val = val + 1
+	case uint64:
+		itm.val = val + 1
+	default:
+		return errors.New("item val is not (u)int (u)int32 (u)int64")
+	}
+	return nil
+}
+
+// Decr decrease counter in memory.
+func (bc *MemoryCache) Decr(key string) error {
+	bc.Lock()
+	defer bc.Unlock()
+	itm, ok := bc.items[key]
+	if !ok {
+		return errors.New("key not exist")
+	}
+	switch val := itm.val.(type) {
+	case int:
+		itm.val = val - 1
+	case int64:
+		itm.val = val - 1
+	case int32:
+		itm.val = val - 1
+	case uint:
+		if val > 0 {
+			itm.val = val - 1
+		} else {
+			return errors.New("item val is less than 0")
+		}
+	case uint32:
+		if val > 0 {
+			itm.val = val - 1
+		} else {
+			return errors.New("item val is less than 0")
+		}
+	case uint64:
+		if val > 0 {
+			itm.val = val - 1
+		} else {
+			return errors.New("item val is less than 0")
+		}
+	default:
+		return errors.New("item val is not int int64 int32")
+	}
+	return nil
+}
+
+// IsExist check cache exist in memory.
+func (bc *MemoryCache) IsExist(name string) bool {
+	bc.RLock()
+	defer bc.RUnlock()
+	if v, ok := bc.items[name]; ok {
+		return !v.isExpire()
+	}
+	return false
+}
+
+// ClearAll will delete all cache in memory.
+func (bc *MemoryCache) ClearAll() error {
+	bc.Lock()
+	defer bc.Unlock()
+	bc.items = make(map[string]*MemoryItem)
+	return nil
+}
+
+// StartAndGC start memory cache. it will check expiration in every clock time.
+func (bc *MemoryCache) StartAndGC(config string) error {
+	var cf map[string]int
+	json.Unmarshal([]byte(config), &cf)
+	if _, ok := cf["interval"]; !ok {
+		cf = make(map[string]int)
+		cf["interval"] = DefaultEvery
+	}
+	dur := time.Duration(cf["interval"]) * time.Second
+	bc.Every = cf["interval"]
+	bc.dur = dur
+	go bc.vacuum()
+	return nil
+}
+
+// check expiration.
+func (bc *MemoryCache) vacuum() {
+	bc.RLock()
+	every := bc.Every
+	bc.RUnlock()
+
+	if every < 1 {
+		return
+	}
+	for {
+		<-time.After(bc.dur)
+		bc.RLock()
+		if bc.items == nil {
+			bc.RUnlock()
+			return
+		}
+		bc.RUnlock()
+		if keys := bc.expiredKeys(); len(keys) != 0 {
+			bc.clearItems(keys)
+		}
+	}
+}
+
+// expiredKeys returns key list which are expired.
+func (bc *MemoryCache) expiredKeys() (keys []string) {
+	bc.RLock()
+	defer bc.RUnlock()
+	for key, itm := range bc.items {
+		if itm.isExpire() {
+			keys = append(keys, key)
+		}
+	}
+	return
+}
+
+// clearItems removes all the items which key in keys.
+func (bc *MemoryCache) clearItems(keys []string) {
+	bc.Lock()
+	defer bc.Unlock()
+	for _, key := range keys {
+		delete(bc.items, key)
+	}
+}
+
+func init() {
+	Register("memory", NewMemoryCache)
+}

pkg/cache/redis/redis.go

@@ -0,0 +1,272 @@
+// Copyright 2014 beego Author. All Rights Reserved.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//      http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+// Package redis for cache provider
+//
+// depend on github.com/gomodule/redigo/redis
+//
+// go install github.com/gomodule/redigo/redis
+//
+// Usage:
+// import(
+//   _ "github.com/astaxie/beego/cache/redis"
+//   "github.com/astaxie/beego/cache"
+// )
+//
+//  bm, err := cache.NewCache("redis", `{"conn":"127.0.0.1:11211"}`)
+//
+//  more docs http://beego.me/docs/module/cache.md
+package redis
+
+import (
+	"encoding/json"
+	"errors"
+	"fmt"
+	"strconv"
+	"time"
+
+	"github.com/gomodule/redigo/redis"
+
+	"github.com/astaxie/beego/cache"
+	"strings"
+)
+
+var (
+	// DefaultKey the collection name of redis for cache adapter.
+	DefaultKey = "beecacheRedis"
+)
+
+// Cache is Redis cache adapter.
+type Cache struct {
+	p        *redis.Pool // redis connection pool
+	conninfo string
+	dbNum    int
+	key      string
+	password string
+	maxIdle  int
+
+	//the timeout to a value less than the redis server's timeout.
+	timeout  time.Duration
+}
+
+// NewRedisCache create new redis cache with default collection name.
+func NewRedisCache() cache.Cache {
+	return &Cache{key: DefaultKey}
+}
+
+// actually do the redis cmds, args[0] must be the key name.
+func (rc *Cache) do(commandName string, args ...interface{}) (reply interface{}, err error) {
+	if len(args) < 1 {
+		return nil, errors.New("missing required arguments")
+	}
+	args[0] = rc.associate(args[0])
+	c := rc.p.Get()
+	defer c.Close()
+
+	return c.Do(commandName, args...)
+}
+
+// associate with config key.
+func (rc *Cache) associate(originKey interface{}) string {
+	return fmt.Sprintf("%s:%s", rc.key, originKey)
+}
+
+// Get cache from redis.
+func (rc *Cache) Get(key string) interface{} {
+	if v, err := rc.do("GET", key); err == nil {
+		return v
+	}
+	return nil
+}
+
+// GetMulti get cache from redis.
+func (rc *Cache) GetMulti(keys []string) []interface{} {
+	c := rc.p.Get()
+	defer c.Close()
+	var args []interface{}
+	for _, key := range keys {
+		args = append(args, rc.associate(key))
+	}
+	values, err := redis.Values(c.Do("MGET", args...))
+	if err != nil {
+		return nil
+	}
+	return values
+}
+
+// Put put cache to redis.
+func (rc *Cache) Put(key string, val interface{}, timeout time.Duration) error {
+	_, err := rc.do("SETEX", key, int64(timeout/time.Second), val)
+	return err
+}
+
+// Delete delete cache in redis.
+func (rc *Cache) Delete(key string) error {
+	_, err := rc.do("DEL", key)
+	return err
+}
+
+// IsExist check cache's existence in redis.
+func (rc *Cache) IsExist(key string) bool {
+	v, err := redis.Bool(rc.do("EXISTS", key))
+	if err != nil {
+		return false
+	}
+	return v
+}
+
+// Incr increase counter in redis.
+func (rc *Cache) Incr(key string) error {
+	_, err := redis.Bool(rc.do("INCRBY", key, 1))
+	return err
+}
+
+// Decr decrease counter in redis.
+func (rc *Cache) Decr(key string) error {
+	_, err := redis.Bool(rc.do("INCRBY", key, -1))
+	return err
+}
+
+// ClearAll clean all cache in redis. delete this redis collection.
+func (rc *Cache) ClearAll() error {
+	cachedKeys, err := rc.Scan(rc.key + ":*")
+	if err != nil {
+		return err
+	}
+	c := rc.p.Get()
+	defer c.Close()
+	for _, str := range cachedKeys {
+		if _, err = c.Do("DEL", str); err != nil {
+			return err
+		}
+	}
+	return err
+}
+
+// Scan scan all keys matching the pattern. a better choice than `keys`
+func (rc *Cache) Scan(pattern string) (keys []string, err error) {
+	c := rc.p.Get()
+	defer c.Close()
+	var (
+		cursor uint64 = 0 // start
+		result []interface{}
+		list   []string
+	)
+	for {
+		result, err = redis.Values(c.Do("SCAN", cursor, "MATCH", pattern, "COUNT", 1024))
+		if err != nil {
+			return
+		}
+		list, err = redis.Strings(result[1], nil)
+		if err != nil {
+			return
+		}
+		keys = append(keys, list...)
+		cursor, err = redis.Uint64(result[0], nil)
+		if err != nil {
+			return
+		}
+		if cursor == 0 { // over
+			return
+		}
+	}
+}
+
+// StartAndGC start redis cache adapter.
+// config is like {"key":"collection key","conn":"connection info","dbNum":"0"}
+// the cache item in redis are stored forever,
+// so no gc operation.
+func (rc *Cache) StartAndGC(config string) error {
+	var cf map[string]string
+	json.Unmarshal([]byte(config), &cf)
+
+	if _, ok := cf["key"]; !ok {
+		cf["key"] = DefaultKey
+	}
+	if _, ok := cf["conn"]; !ok {
+		return errors.New("config has no conn key")
+	}
+
+	// Format redis://<password>@<host>:<port>
+	cf["conn"] = strings.Replace(cf["conn"], "redis://", "", 1)
+	if i := strings.Index(cf["conn"], "@"); i > -1 {
+		cf["password"] = cf["conn"][0:i]
+		cf["conn"] = cf["conn"][i+1:]
+	}
+
+	if _, ok := cf["dbNum"]; !ok {
+		cf["dbNum"] = "0"
+	}
+	if _, ok := cf["password"]; !ok {
+		cf["password"] = ""
+	}
+	if _, ok := cf["maxIdle"]; !ok {
+		cf["maxIdle"] = "3"
+	}
+	if _, ok := cf["timeout"]; !ok {
+		cf["timeout"] = "180s"
+	}
+	rc.key = cf["key"]
+	rc.conninfo = cf["conn"]
+	rc.dbNum, _ = strconv.Atoi(cf["dbNum"])
+	rc.password = cf["password"]
+	rc.maxIdle, _ = strconv.Atoi(cf["maxIdle"])
+
+	if v, err := time.ParseDuration(cf["timeout"]); err == nil {
+		rc.timeout = v
+	} else {
+		rc.timeout = 180 * time.Second
+	}
+
+	rc.connectInit()
+
+	c := rc.p.Get()
+	defer c.Close()
+
+	return c.Err()
+}
+
+// connect to redis.
+func (rc *Cache) connectInit() {
+	dialFunc := func() (c redis.Conn, err error) {
+		c, err = redis.Dial("tcp", rc.conninfo)
+		if err != nil {
+			return nil, err
+		}
+
+		if rc.password != "" {
+			if _, err := c.Do("AUTH", rc.password); err != nil {
+				c.Close()
+				return nil, err
+			}
+		}
+
+		_, selecterr := c.Do("SELECT", rc.dbNum)
+		if selecterr != nil {
+			c.Close()
+			return nil, selecterr
+		}
+		return
+	}
+	// initialize a new pool
+	rc.p = &redis.Pool{
+		MaxIdle:     rc.maxIdle,
+		IdleTimeout: rc.timeout,
+		Dial:        dialFunc,
+	}
+}
+
+func init() {
+	cache.Register("redis", NewRedisCache)
+}

pkg/cache/redis/redis_test.go

@@ -0,0 +1,144 @@
+// Copyright 2014 beego Author. All Rights Reserved.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//      http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package redis
+
+import (
+	"fmt"
+	"testing"
+	"time"
+
+	"github.com/astaxie/beego/cache"
+	"github.com/gomodule/redigo/redis"
+	"github.com/stretchr/testify/assert"
+)
+
+func TestRedisCache(t *testing.T) {
+	bm, err := cache.NewCache("redis", `{"conn": "127.0.0.1:6379"}`)
+	if err != nil {
+		t.Error("init err")
+	}
+	timeoutDuration := 10 * time.Second
+	if err = bm.Put("astaxie", 1, timeoutDuration); err != nil {
+		t.Error("set Error", err)
+	}
+	if !bm.IsExist("astaxie") {
+		t.Error("check err")
+	}
+
+	time.Sleep(11 * time.Second)
+
+	if bm.IsExist("astaxie") {
+		t.Error("check err")
+	}
+	if err = bm.Put("astaxie", 1, timeoutDuration); err != nil {
+		t.Error("set Error", err)
+	}
+
+	if v, _ := redis.Int(bm.Get("astaxie"), err); v != 1 {
+		t.Error("get err")
+	}
+
+	if err = bm.Incr("astaxie"); err != nil {
+		t.Error("Incr Error", err)
+	}
+
+	if v, _ := redis.Int(bm.Get("astaxie"), err); v != 2 {
+		t.Error("get err")
+	}
+
+	if err = bm.Decr("astaxie"); err != nil {
+		t.Error("Decr Error", err)
+	}
+
+	if v, _ := redis.Int(bm.Get("astaxie"), err); v != 1 {
+		t.Error("get err")
+	}
+	bm.Delete("astaxie")
+	if bm.IsExist("astaxie") {
+		t.Error("delete err")
+	}
+
+	//test string
+	if err = bm.Put("astaxie", "author", timeoutDuration); err != nil {
+		t.Error("set Error", err)
+	}
+	if !bm.IsExist("astaxie") {
+		t.Error("check err")
+	}
+
+	if v, _ := redis.String(bm.Get("astaxie"), err); v != "author" {
+		t.Error("get err")
+	}
+
+	//test GetMulti
+	if err = bm.Put("astaxie1", "author1", timeoutDuration); err != nil {
+		t.Error("set Error", err)
+	}
+	if !bm.IsExist("astaxie1") {
+		t.Error("check err")
+	}
+
+	vv := bm.GetMulti([]string{"astaxie", "astaxie1"})
+	if len(vv) != 2 {
+		t.Error("GetMulti ERROR")
+	}
+	if v, _ := redis.String(vv[0], nil); v != "author" {
+		t.Error("GetMulti ERROR")
+	}
+	if v, _ := redis.String(vv[1], nil); v != "author1" {
+		t.Error("GetMulti ERROR")
+	}
+
+	// test clear all
+	if err = bm.ClearAll(); err != nil {
+		t.Error("clear all err")
+	}
+}
+
+func TestCache_Scan(t *testing.T) {
+	timeoutDuration := 10 * time.Second
+	// init
+	bm, err := cache.NewCache("redis", `{"conn": "127.0.0.1:6379"}`)
+	if err != nil {
+		t.Error("init err")
+	}
+	// insert all
+	for i := 0; i < 10000; i++ {
+		if err = bm.Put(fmt.Sprintf("astaxie%d", i), fmt.Sprintf("author%d", i), timeoutDuration); err != nil {
+			t.Error("set Error", err)
+		}
+	}
+	// scan all for the first time
+	keys, err := bm.(*Cache).Scan(DefaultKey + ":*")
+	if err != nil {
+		t.Error("scan Error", err)
+	}
+
+	assert.Equal(t, 10000, len(keys), "scan all error")
+
+	// clear all
+	if err = bm.ClearAll(); err != nil {
+		t.Error("clear all err")
+	}
+
+	// scan all for the second time
+	keys, err = bm.(*Cache).Scan(DefaultKey + ":*")
+	if err != nil {
+		t.Error("scan Error", err)
+	}
+	if len(keys) != 0 {
+		t.Error("scan all err")
+	}
+}

pkg/cache/ssdb/ssdb.go

@@ -0,0 +1,231 @@
+package ssdb
+
+import (
+	"encoding/json"
+	"errors"
+	"strconv"
+	"strings"
+	"time"
+
+	"github.com/ssdb/gossdb/ssdb"
+
+	"github.com/astaxie/beego/cache"
+)
+
+// Cache SSDB adapter
+type Cache struct {
+	conn     *ssdb.Client
+	conninfo []string
+}
+
+//NewSsdbCache create new ssdb adapter.
+func NewSsdbCache() cache.Cache {
+	return &Cache{}
+}
+
+// Get get value from memcache.
+func (rc *Cache) Get(key string) interface{} {
+	if rc.conn == nil {
+		if err := rc.connectInit(); err != nil {
+			return nil
+		}
+	}
+	value, err := rc.conn.Get(key)
+	if err == nil {
+		return value
+	}
+	return nil
+}
+
+// GetMulti get value from memcache.
+func (rc *Cache) GetMulti(keys []string) []interface{} {
+	size := len(keys)
+	var values []interface{}
+	if rc.conn == nil {
+		if err := rc.connectInit(); err != nil {
+			for i := 0; i < size; i++ {
+				values = append(values, err)
+			}
+			return values
+		}
+	}
+	res, err := rc.conn.Do("multi_get", keys)
+	resSize := len(res)
+	if err == nil {
+		for i := 1; i < resSize; i += 2 {
+			values = append(values, res[i+1])
+		}
+		return values
+	}
+	for i := 0; i < size; i++ {
+		values = append(values, err)
+	}
+	return values
+}
+
+// DelMulti get value from memcache.
+func (rc *Cache) DelMulti(keys []string) error {
+	if rc.conn == nil {
+		if err := rc.connectInit(); err != nil {
+			return err
+		}
+	}
+	_, err := rc.conn.Do("multi_del", keys)
+	return err
+}
+
+// Put put value to memcache. only support string.
+func (rc *Cache) Put(key string, value interface{}, timeout time.Duration) error {
+	if rc.conn == nil {
+		if err := rc.connectInit(); err != nil {
+			return err
+		}
+	}
+	v, ok := value.(string)
+	if !ok {
+		return errors.New("value must string")
+	}
+	var resp []string
+	var err error
+	ttl := int(timeout / time.Second)
+	if ttl < 0 {
+		resp, err = rc.conn.Do("set", key, v)
+	} else {
+		resp, err = rc.conn.Do("setx", key, v, ttl)
+	}
+	if err != nil {
+		return err
+	}
+	if len(resp) == 2 && resp[0] == "ok" {
+		return nil
+	}
+	return errors.New("bad response")
+}
+
+// Delete delete value in memcache.
+func (rc *Cache) Delete(key string) error {
+	if rc.conn == nil {
+		if err := rc.connectInit(); err != nil {
+			return err
+		}
+	}
+	_, err := rc.conn.Del(key)
+	return err
+}
+
+// Incr increase counter.
+func (rc *Cache) Incr(key string) error {
+	if rc.conn == nil {
+		if err := rc.connectInit(); err != nil {
+			return err
+		}
+	}
+	_, err := rc.conn.Do("incr", key, 1)
+	return err
+}
+
+// Decr decrease counter.
+func (rc *Cache) Decr(key string) error {
+	if rc.conn == nil {
+		if err := rc.connectInit(); err != nil {
+			return err
+		}
+	}
+	_, err := rc.conn.Do("incr", key, -1)
+	return err
+}
+
+// IsExist check value exists in memcache.
+func (rc *Cache) IsExist(key string) bool {
+	if rc.conn == nil {
+		if err := rc.connectInit(); err != nil {
+			return false
+		}
+	}
+	resp, err := rc.conn.Do("exists", key)
+	if err != nil {
+		return false
+	}
+	if len(resp) == 2 && resp[1] == "1" {
+		return true
+	}
+	return false
+
+}
+
+// ClearAll clear all cached in memcache.
+func (rc *Cache) ClearAll() error {
+	if rc.conn == nil {
+		if err := rc.connectInit(); err != nil {
+			return err
+		}
+	}
+	keyStart, keyEnd, limit := "", "", 50
+	resp, err := rc.Scan(keyStart, keyEnd, limit)
+	for err == nil {
+		size := len(resp)
+		if size == 1 {
+			return nil
+		}
+		keys := []string{}
+		for i := 1; i < size; i += 2 {
+			keys = append(keys, resp[i])
+		}
+		_, e := rc.conn.Do("multi_del", keys)
+		if e != nil {
+			return e
+		}
+		keyStart = resp[size-2]
+		resp, err = rc.Scan(keyStart, keyEnd, limit)
+	}
+	return err
+}
+
+// Scan key all cached in ssdb.
+func (rc *Cache) Scan(keyStart string, keyEnd string, limit int) ([]string, error) {
+	if rc.conn == nil {
+		if err := rc.connectInit(); err != nil {
+			return nil, err
+		}
+	}
+	resp, err := rc.conn.Do("scan", keyStart, keyEnd, limit)
+	if err != nil {
+		return nil, err
+	}
+	return resp, nil
+}
+
+// StartAndGC start memcache adapter.
+// config string is like {"conn":"connection info"}.
+// if connecting error, return.
+func (rc *Cache) StartAndGC(config string) error {
+	var cf map[string]string
+	json.Unmarshal([]byte(config), &cf)
+	if _, ok := cf["conn"]; !ok {
+		return errors.New("config has no conn key")
+	}
+	rc.conninfo = strings.Split(cf["conn"], ";")
+	if rc.conn == nil {
+		if err := rc.connectInit(); err != nil {
+			return err
+		}
+	}
+	return nil
+}
+
+// connect to memcache and keep the connection.
+func (rc *Cache) connectInit() error {
+	conninfoArray := strings.Split(rc.conninfo[0], ":")
+	host := conninfoArray[0]
+	port, e := strconv.Atoi(conninfoArray[1])
+	if e != nil {
+		return e
+	}
+	var err error
+	rc.conn, err = ssdb.Connect(host, port)
+	return err
+}
+
+func init() {
+	cache.Register("ssdb", NewSsdbCache)
+}

pkg/cache/ssdb/ssdb_test.go

@@ -0,0 +1,104 @@
+package ssdb
+
+import (
+	"strconv"
+	"testing"
+	"time"
+
+	"github.com/astaxie/beego/cache"
+)
+
+func TestSsdbcacheCache(t *testing.T) {
+	ssdb, err := cache.NewCache("ssdb", `{"conn": "127.0.0.1:8888"}`)
+	if err != nil {
+		t.Error("init err")
+	}
+
+	// test put and exist
+	if ssdb.IsExist("ssdb") {
+		t.Error("check err")
+	}
+	timeoutDuration := 10 * time.Second
+	//timeoutDuration := -10*time.Second   if timeoutDuration is negtive,it means permanent
+	if err = ssdb.Put("ssdb", "ssdb", timeoutDuration); err != nil {
+		t.Error("set Error", err)
+	}
+	if !ssdb.IsExist("ssdb") {
+		t.Error("check err")
+	}
+
+	// Get test done
+	if err = ssdb.Put("ssdb", "ssdb", timeoutDuration); err != nil {
+		t.Error("set Error", err)
+	}
+
+	if v := ssdb.Get("ssdb"); v != "ssdb" {
+		t.Error("get Error")
+	}
+
+	//inc/dec test done
+	if err = ssdb.Put("ssdb", "2", timeoutDuration); err != nil {
+		t.Error("set Error", err)
+	}
+	if err = ssdb.Incr("ssdb"); err != nil {
+		t.Error("incr Error", err)
+	}
+
+	if v, err := strconv.Atoi(ssdb.Get("ssdb").(string)); err != nil || v != 3 {
+		t.Error("get err")
+	}
+
+	if err = ssdb.Decr("ssdb"); err != nil {
+		t.Error("decr error")
+	}
+
+	// test del
+	if err = ssdb.Put("ssdb", "3", timeoutDuration); err != nil {
+		t.Error("set Error", err)
+	}
+	if v, err := strconv.Atoi(ssdb.Get("ssdb").(string)); err != nil || v != 3 {
+		t.Error("get err")
+	}
+	if err := ssdb.Delete("ssdb"); err == nil {
+		if ssdb.IsExist("ssdb") {
+			t.Error("delete err")
+		}
+	}
+
+	//test string
+	if err = ssdb.Put("ssdb", "ssdb", -10*time.Second); err != nil {
+		t.Error("set Error", err)
+	}
+	if !ssdb.IsExist("ssdb") {
+		t.Error("check err")
+	}
+	if v := ssdb.Get("ssdb").(string); v != "ssdb" {
+		t.Error("get err")
+	}
+
+	//test GetMulti done
+	if err = ssdb.Put("ssdb1", "ssdb1", -10*time.Second); err != nil {
+		t.Error("set Error", err)
+	}
+	if !ssdb.IsExist("ssdb1") {
+		t.Error("check err")
+	}
+	vv := ssdb.GetMulti([]string{"ssdb", "ssdb1"})
+	if len(vv) != 2 {
+		t.Error("getmulti error")
+	}
+	if vv[0].(string) != "ssdb" {
+		t.Error("getmulti error")
+	}
+	if vv[1].(string) != "ssdb1" {
+		t.Error("getmulti error")
+	}
+
+	// test clear all done
+	if err = ssdb.ClearAll(); err != nil {
+		t.Error("clear all err")
+	}
+	if ssdb.IsExist("ssdb") || ssdb.IsExist("ssdb1") {
+		t.Error("check err")
+	}
+}

pkg/config.go

@@ -0,0 +1,524 @@
+// Copyright 2014 beego Author. All Rights Reserved.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//      http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package beego
+
+import (
+	"fmt"
+	"os"
+	"path/filepath"
+	"reflect"
+	"runtime"
+	"strings"
+
+	"github.com/astaxie/beego/config"
+	"github.com/astaxie/beego/context"
+	"github.com/astaxie/beego/logs"
+	"github.com/astaxie/beego/session"
+	"github.com/astaxie/beego/utils"
+)
+
+// Config is the main struct for BConfig
+type Config struct {
+	AppName             string //Application name
+	RunMode             string //Running Mode: dev | prod
+	RouterCaseSensitive bool
+	ServerName          string
+	RecoverPanic        bool
+	RecoverFunc         func(*context.Context)
+	CopyRequestBody     bool
+	EnableGzip          bool
+	MaxMemory           int64
+	EnableErrorsShow    bool
+	EnableErrorsRender  bool
+	Listen              Listen
+	WebConfig           WebConfig
+	Log                 LogConfig
+}
+
+// Listen holds for http and https related config
+type Listen struct {
+	Graceful          bool // Graceful means use graceful module to start the server
+	ServerTimeOut     int64
+	ListenTCP4        bool
+	EnableHTTP        bool
+	HTTPAddr          string
+	HTTPPort          int
+	AutoTLS           bool
+	Domains           []string
+	TLSCacheDir       string
+	EnableHTTPS       bool
+	EnableMutualHTTPS bool
+	HTTPSAddr         string
+	HTTPSPort         int
+	HTTPSCertFile     string
+	HTTPSKeyFile      string
+	TrustCaFile       string
+	EnableAdmin       bool
+	AdminAddr         string
+	AdminPort         int
+	EnableFcgi        bool
+	EnableStdIo       bool // EnableStdIo works with EnableFcgi Use FCGI via standard I/O
+}
+
+// WebConfig holds web related config
+type WebConfig struct {
+	AutoRender             bool
+	EnableDocs             bool
+	FlashName              string
+	FlashSeparator         string
+	DirectoryIndex         bool
+	StaticDir              map[string]string
+	StaticExtensionsToGzip []string
+	StaticCacheFileSize    int
+	StaticCacheFileNum     int
+	TemplateLeft           string
+	TemplateRight          string
+	ViewsPath              string
+	EnableXSRF             bool
+	XSRFKey                string
+	XSRFExpire             int
+	Session                SessionConfig
+}
+
+// SessionConfig holds session related config
+type SessionConfig struct {
+	SessionOn                    bool
+	SessionProvider              string
+	SessionName                  string
+	SessionGCMaxLifetime         int64
+	SessionProviderConfig        string
+	SessionCookieLifeTime        int
+	SessionAutoSetCookie         bool
+	SessionDomain                string
+	SessionDisableHTTPOnly       bool // used to allow for cross domain cookies/javascript cookies.
+	SessionEnableSidInHTTPHeader bool // enable store/get the sessionId into/from http headers
+	SessionNameInHTTPHeader      string
+	SessionEnableSidInURLQuery   bool // enable get the sessionId from Url Query params
+}
+
+// LogConfig holds Log related config
+type LogConfig struct {
+	AccessLogs       bool
+	EnableStaticLogs bool   //log static files requests default: false
+	AccessLogsFormat string //access log format: JSON_FORMAT, APACHE_FORMAT or empty string
+	FileLineNum      bool
+	Outputs          map[string]string // Store Adaptor : config
+}
+
+var (
+	// BConfig is the default config for Application
+	BConfig *Config
+	// AppConfig is the instance of Config, store the config information from file
+	AppConfig *beegoAppConfig
+	// AppPath is the absolute path to the app
+	AppPath string
+	// GlobalSessions is the instance for the session manager
+	GlobalSessions *session.Manager
+
+	// appConfigPath is the path to the config files
+	appConfigPath string
+	// appConfigProvider is the provider for the config, default is ini
+	appConfigProvider = "ini"
+	// WorkPath is the absolute path to project root directory
+	WorkPath string
+)
+
+func init() {
+	BConfig = newBConfig()
+	var err error
+	if AppPath, err = filepath.Abs(filepath.Dir(os.Args[0])); err != nil {
+		panic(err)
+	}
+	WorkPath, err = os.Getwd()
+	if err != nil {
+		panic(err)
+	}
+	var filename = "app.conf"
+	if os.Getenv("BEEGO_RUNMODE") != "" {
+		filename = os.Getenv("BEEGO_RUNMODE") + ".app.conf"
+	}
+	appConfigPath = filepath.Join(WorkPath, "conf", filename)
+	if !utils.FileExists(appConfigPath) {
+		appConfigPath = filepath.Join(AppPath, "conf", filename)
+		if !utils.FileExists(appConfigPath) {
+			AppConfig = &beegoAppConfig{innerConfig: config.NewFakeConfig()}
+			return
+		}
+	}
+	if err = parseConfig(appConfigPath); err != nil {
+		panic(err)
+	}
+}
+
+func recoverPanic(ctx *context.Context) {
+	if err := recover(); err != nil {
+		if err == ErrAbort {
+			return
+		}
+		if !BConfig.RecoverPanic {
+			panic(err)
+		}
+		if BConfig.EnableErrorsShow {
+			if _, ok := ErrorMaps[fmt.Sprint(err)]; ok {
+				exception(fmt.Sprint(err), ctx)
+				return
+			}
+		}
+		var stack string
+		logs.Critical("the request url is ", ctx.Input.URL())
+		logs.Critical("Handler crashed with error", err)
+		for i := 1; ; i++ {
+			_, file, line, ok := runtime.Caller(i)
+			if !ok {
+				break
+			}
+			logs.Critical(fmt.Sprintf("%s:%d", file, line))
+			stack = stack + fmt.Sprintln(fmt.Sprintf("%s:%d", file, line))
+		}
+		if BConfig.RunMode == DEV && BConfig.EnableErrorsRender {
+			showErr(err, ctx, stack)
+		}
+		if ctx.Output.Status != 0 {
+			ctx.ResponseWriter.WriteHeader(ctx.Output.Status)
+		} else {
+			ctx.ResponseWriter.WriteHeader(500)
+		}
+	}
+}
+
+func newBConfig() *Config {
+	return &Config{
+		AppName:             "beego",
+		RunMode:             PROD,
+		RouterCaseSensitive: true,
+		ServerName:          "beegoServer:" + VERSION,
+		RecoverPanic:        true,
+		RecoverFunc:         recoverPanic,
+		CopyRequestBody:     false,
+		EnableGzip:          false,
+		MaxMemory:           1 << 26, //64MB
+		EnableErrorsShow:    true,
+		EnableErrorsRender:  true,
+		Listen: Listen{
+			Graceful:      false,
+			ServerTimeOut: 0,
+			ListenTCP4:    false,
+			EnableHTTP:    true,
+			AutoTLS:       false,
+			Domains:       []string{},
+			TLSCacheDir:   ".",
+			HTTPAddr:      "",
+			HTTPPort:      8080,
+			EnableHTTPS:   false,
+			HTTPSAddr:     "",
+			HTTPSPort:     10443,
+			HTTPSCertFile: "",
+			HTTPSKeyFile:  "",
+			EnableAdmin:   false,
+			AdminAddr:     "",
+			AdminPort:     8088,
+			EnableFcgi:    false,
+			EnableStdIo:   false,
+		},
+		WebConfig: WebConfig{
+			AutoRender:             true,
+			EnableDocs:             false,
+			FlashName:              "BEEGO_FLASH",
+			FlashSeparator:         "BEEGOFLASH",
+			DirectoryIndex:         false,
+			StaticDir:              map[string]string{"/static": "static"},
+			StaticExtensionsToGzip: []string{".css", ".js"},
+			StaticCacheFileSize:    1024 * 100,
+			StaticCacheFileNum:     1000,
+			TemplateLeft:           "{{",
+			TemplateRight:          "}}",
+			ViewsPath:              "views",
+			EnableXSRF:             false,
+			XSRFKey:                "beegoxsrf",
+			XSRFExpire:             0,
+			Session: SessionConfig{
+				SessionOn:                    false,
+				SessionProvider:              "memory",
+				SessionName:                  "beegosessionID",
+				SessionGCMaxLifetime:         3600,
+				SessionProviderConfig:        "",
+				SessionDisableHTTPOnly:       false,
+				SessionCookieLifeTime:        0, //set cookie default is the browser life
+				SessionAutoSetCookie:         true,
+				SessionDomain:                "",
+				SessionEnableSidInHTTPHeader: false, // enable store/get the sessionId into/from http headers
+				SessionNameInHTTPHeader:      "Beegosessionid",
+				SessionEnableSidInURLQuery:   false, // enable get the sessionId from Url Query params
+			},
+		},
+		Log: LogConfig{
+			AccessLogs:       false,
+			EnableStaticLogs: false,
+			AccessLogsFormat: "APACHE_FORMAT",
+			FileLineNum:      true,
+			Outputs:          map[string]string{"console": ""},
+		},
+	}
+}
+
+// now only support ini, next will support json.
+func parseConfig(appConfigPath string) (err error) {
+	AppConfig, err = newAppConfig(appConfigProvider, appConfigPath)
+	if err != nil {
+		return err
+	}
+	return assignConfig(AppConfig)
+}
+
+func assignConfig(ac config.Configer) error {
+	for _, i := range []interface{}{BConfig, &BConfig.Listen, &BConfig.WebConfig, &BConfig.Log, &BConfig.WebConfig.Session} {
+		assignSingleConfig(i, ac)
+	}
+	// set the run mode first
+	if envRunMode := os.Getenv("BEEGO_RUNMODE"); envRunMode != "" {
+		BConfig.RunMode = envRunMode
+	} else if runMode := ac.String("RunMode"); runMode != "" {
+		BConfig.RunMode = runMode
+	}
+
+	if sd := ac.String("StaticDir"); sd != "" {
+		BConfig.WebConfig.StaticDir = map[string]string{}
+		sds := strings.Fields(sd)
+		for _, v := range sds {
+			if url2fsmap := strings.SplitN(v, ":", 2); len(url2fsmap) == 2 {
+				BConfig.WebConfig.StaticDir["/"+strings.Trim(url2fsmap[0], "/")] = url2fsmap[1]
+			} else {
+				BConfig.WebConfig.StaticDir["/"+strings.Trim(url2fsmap[0], "/")] = url2fsmap[0]
+			}
+		}
+	}
+
+	if sgz := ac.String("StaticExtensionsToGzip"); sgz != "" {
+		extensions := strings.Split(sgz, ",")
+		fileExts := []string{}
+		for _, ext := range extensions {
+			ext = strings.TrimSpace(ext)
+			if ext == "" {
+				continue
+			}
+			if !strings.HasPrefix(ext, ".") {
+				ext = "." + ext
+			}
+			fileExts = append(fileExts, ext)
+		}
+		if len(fileExts) > 0 {
+			BConfig.WebConfig.StaticExtensionsToGzip = fileExts
+		}
+	}
+
+	if sfs, err := ac.Int("StaticCacheFileSize"); err == nil {
+		BConfig.WebConfig.StaticCacheFileSize = sfs
+	}
+
+	if sfn, err := ac.Int("StaticCacheFileNum"); err == nil {
+		BConfig.WebConfig.StaticCacheFileNum = sfn
+	}
+
+	if lo := ac.String("LogOutputs"); lo != "" {
+		// if lo is not nil or empty
+		// means user has set his own LogOutputs
+		// clear the default setting to BConfig.Log.Outputs
+		BConfig.Log.Outputs = make(map[string]string)
+		los := strings.Split(lo, ";")
+		for _, v := range los {
+			if logType2Config := strings.SplitN(v, ",", 2); len(logType2Config) == 2 {
+				BConfig.Log.Outputs[logType2Config[0]] = logType2Config[1]
+			} else {
+				continue
+			}
+		}
+	}
+
+	//init log
+	logs.Reset()
+	for adaptor, config := range BConfig.Log.Outputs {
+		err := logs.SetLogger(adaptor, config)
+		if err != nil {
+			fmt.Fprintln(os.Stderr, fmt.Sprintf("%s with the config %q got err:%s", adaptor, config, err.Error()))
+		}
+	}
+	logs.SetLogFuncCall(BConfig.Log.FileLineNum)
+
+	return nil
+}
+
+func assignSingleConfig(p interface{}, ac config.Configer) {
+	pt := reflect.TypeOf(p)
+	if pt.Kind() != reflect.Ptr {
+		return
+	}
+	pt = pt.Elem()
+	if pt.Kind() != reflect.Struct {
+		return
+	}
+	pv := reflect.ValueOf(p).Elem()
+
+	for i := 0; i < pt.NumField(); i++ {
+		pf := pv.Field(i)
+		if !pf.CanSet() {
+			continue
+		}
+		name := pt.Field(i).Name
+		switch pf.Kind() {
+		case reflect.String:
+			pf.SetString(ac.DefaultString(name, pf.String()))
+		case reflect.Int, reflect.Int64:
+			pf.SetInt(ac.DefaultInt64(name, pf.Int()))
+		case reflect.Bool:
+			pf.SetBool(ac.DefaultBool(name, pf.Bool()))
+		case reflect.Struct:
+		default:
+			//do nothing here
+		}
+	}
+
+}
+
+// LoadAppConfig allow developer to apply a config file
+func LoadAppConfig(adapterName, configPath string) error {
+	absConfigPath, err := filepath.Abs(configPath)
+	if err != nil {
+		return err
+	}
+
+	if !utils.FileExists(absConfigPath) {
+		return fmt.Errorf("the target config file: %s don't exist", configPath)
+	}
+
+	appConfigPath = absConfigPath
+	appConfigProvider = adapterName
+
+	return parseConfig(appConfigPath)
+}
+
+type beegoAppConfig struct {
+	innerConfig config.Configer
+}
+
+func newAppConfig(appConfigProvider, appConfigPath string) (*beegoAppConfig, error) {
+	ac, err := config.NewConfig(appConfigProvider, appConfigPath)
+	if err != nil {
+		return nil, err
+	}
+	return &beegoAppConfig{ac}, nil
+}
+
+func (b *beegoAppConfig) Set(key, val string) error {
+	if err := b.innerConfig.Set(BConfig.RunMode+"::"+key, val); err != nil {
+		return b.innerConfig.Set(key, val)
+	}
+	return nil
+}
+
+func (b *beegoAppConfig) String(key string) string {
+	if v := b.innerConfig.String(BConfig.RunMode + "::" + key); v != "" {
+		return v
+	}
+	return b.innerConfig.String(key)
+}
+
+func (b *beegoAppConfig) Strings(key string) []string {
+	if v := b.innerConfig.Strings(BConfig.RunMode + "::" + key); len(v) > 0 {
+		return v
+	}
+	return b.innerConfig.Strings(key)
+}
+
+func (b *beegoAppConfig) Int(key string) (int, error) {
+	if v, err := b.innerConfig.Int(BConfig.RunMode + "::" + key); err == nil {
+		return v, nil
+	}
+	return b.innerConfig.Int(key)
+}
+
+func (b *beegoAppConfig) Int64(key string) (int64, error) {
+	if v, err := b.innerConfig.Int64(BConfig.RunMode + "::" + key); err == nil {
+		return v, nil
+	}
+	return b.innerConfig.Int64(key)
+}
+
+func (b *beegoAppConfig) Bool(key string) (bool, error) {
+	if v, err := b.innerConfig.Bool(BConfig.RunMode + "::" + key); err == nil {
+		return v, nil
+	}
+	return b.innerConfig.Bool(key)
+}
+
+func (b *beegoAppConfig) Float(key string) (float64, error) {
+	if v, err := b.innerConfig.Float(BConfig.RunMode + "::" + key); err == nil {
+		return v, nil
+	}
+	return b.innerConfig.Float(key)
+}
+
+func (b *beegoAppConfig) DefaultString(key string, defaultVal string) string {
+	if v := b.String(key); v != "" {
+		return v
+	}
+	return defaultVal
+}
+
+func (b *beegoAppConfig) DefaultStrings(key string, defaultVal []string) []string {
+	if v := b.Strings(key); len(v) != 0 {
+		return v
+	}
+	return defaultVal
+}
+
+func (b *beegoAppConfig) DefaultInt(key string, defaultVal int) int {
+	if v, err := b.Int(key); err == nil {
+		return v
+	}
+	return defaultVal
+}
+
+func (b *beegoAppConfig) DefaultInt64(key string, defaultVal int64) int64 {
+	if v, err := b.Int64(key); err == nil {
+		return v
+	}
+	return defaultVal
+}
+
+func (b *beegoAppConfig) DefaultBool(key string, defaultVal bool) bool {
+	if v, err := b.Bool(key); err == nil {
+		return v
+	}
+	return defaultVal
+}
+
+func (b *beegoAppConfig) DefaultFloat(key string, defaultVal float64) float64 {
+	if v, err := b.Float(key); err == nil {
+		return v
+	}
+	return defaultVal
+}
+
+func (b *beegoAppConfig) DIY(key string) (interface{}, error) {
+	return b.innerConfig.DIY(key)
+}
+
+func (b *beegoAppConfig) GetSection(section string) (map[string]string, error) {
+	return b.innerConfig.GetSection(section)
+}
+
+func (b *beegoAppConfig) SaveConfigFile(filename string) error {
+	return b.innerConfig.SaveConfigFile(filename)
+}

pkg/config/config.go

@@ -0,0 +1,242 @@
+// Copyright 2014 beego Author. All Rights Reserved.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//      http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+// Package config is used to parse config.
+// Usage:
+//  import "github.com/astaxie/beego/config"
+//Examples.
+//
+//  cnf, err := config.NewConfig("ini", "config.conf")
+//
+//  cnf APIS:
+//
+//  cnf.Set(key, val string) error
+//  cnf.String(key string) string
+//  cnf.Strings(key string) []string
+//  cnf.Int(key string) (int, error)
+//  cnf.Int64(key string) (int64, error)
+//  cnf.Bool(key string) (bool, error)
+//  cnf.Float(key string) (float64, error)
+//  cnf.DefaultString(key string, defaultVal string) string
+//  cnf.DefaultStrings(key string, defaultVal []string) []string
+//  cnf.DefaultInt(key string, defaultVal int) int
+//  cnf.DefaultInt64(key string, defaultVal int64) int64
+//  cnf.DefaultBool(key string, defaultVal bool) bool
+//  cnf.DefaultFloat(key string, defaultVal float64) float64
+//  cnf.DIY(key string) (interface{}, error)
+//  cnf.GetSection(section string) (map[string]string, error)
+//  cnf.SaveConfigFile(filename string) error
+//More docs http://beego.me/docs/module/config.md
+package config
+
+import (
+	"fmt"
+	"os"
+	"reflect"
+	"time"
+)
+
+// Configer defines how to get and set value from configuration raw data.
+type Configer interface {
+	Set(key, val string) error   //support section::key type in given key when using ini type.
+	String(key string) string    //support section::key type in key string when using ini and json type; Int,Int64,Bool,Float,DIY are same.
+	Strings(key string) []string //get string slice
+	Int(key string) (int, error)
+	Int64(key string) (int64, error)
+	Bool(key string) (bool, error)
+	Float(key string) (float64, error)
+	DefaultString(key string, defaultVal string) string      // support section::key type in key string when using ini and json type; Int,Int64,Bool,Float,DIY are same.
+	DefaultStrings(key string, defaultVal []string) []string //get string slice
+	DefaultInt(key string, defaultVal int) int
+	DefaultInt64(key string, defaultVal int64) int64
+	DefaultBool(key string, defaultVal bool) bool
+	DefaultFloat(key string, defaultVal float64) float64
+	DIY(key string) (interface{}, error)
+	GetSection(section string) (map[string]string, error)
+	SaveConfigFile(filename string) error
+}
+
+// Config is the adapter interface for parsing config file to get raw data to Configer.
+type Config interface {
+	Parse(key string) (Configer, error)
+	ParseData(data []byte) (Configer, error)
+}
+
+var adapters = make(map[string]Config)
+
+// Register makes a config adapter available by the adapter name.
+// If Register is called twice with the same name or if driver is nil,
+// it panics.
+func Register(name string, adapter Config) {
+	if adapter == nil {
+		panic("config: Register adapter is nil")
+	}
+	if _, ok := adapters[name]; ok {
+		panic("config: Register called twice for adapter " + name)
+	}
+	adapters[name] = adapter
+}
+
+// NewConfig adapterName is ini/json/xml/yaml.
+// filename is the config file path.
+func NewConfig(adapterName, filename string) (Configer, error) {
+	adapter, ok := adapters[adapterName]
+	if !ok {
+		return nil, fmt.Errorf("config: unknown adaptername %q (forgotten import?)", adapterName)
+	}
+	return adapter.Parse(filename)
+}
+
+// NewConfigData adapterName is ini/json/xml/yaml.
+// data is the config data.
+func NewConfigData(adapterName string, data []byte) (Configer, error) {
+	adapter, ok := adapters[adapterName]
+	if !ok {
+		return nil, fmt.Errorf("config: unknown adaptername %q (forgotten import?)", adapterName)
+	}
+	return adapter.ParseData(data)
+}
+
+// ExpandValueEnvForMap convert all string value with environment variable.
+func ExpandValueEnvForMap(m map[string]interface{}) map[string]interface{} {
+	for k, v := range m {
+		switch value := v.(type) {
+		case string:
+			m[k] = ExpandValueEnv(value)
+		case map[string]interface{}:
+			m[k] = ExpandValueEnvForMap(value)
+		case map[string]string:
+			for k2, v2 := range value {
+				value[k2] = ExpandValueEnv(v2)
+			}
+			m[k] = value
+		}
+	}
+	return m
+}
+
+// ExpandValueEnv returns value of convert with environment variable.
+//
+// Return environment variable if value start with "${" and end with "}".
+// Return default value if environment variable is empty or not exist.
+//
+// It accept value formats "${env}" , "${env||}}" , "${env||defaultValue}" , "defaultvalue".
+// Examples:
+//	v1 := config.ExpandValueEnv("${GOPATH}")			// return the GOPATH environment variable.
+//	v2 := config.ExpandValueEnv("${GOAsta||/usr/local/go}")	// return the default value "/usr/local/go/".
+//	v3 := config.ExpandValueEnv("Astaxie")				// return the value "Astaxie".
+func ExpandValueEnv(value string) (realValue string) {
+	realValue = value
+
+	vLen := len(value)
+	// 3 = ${}
+	if vLen < 3 {
+		return
+	}
+	// Need start with "${" and end with "}", then return.
+	if value[0] != '$' || value[1] != '{' || value[vLen-1] != '}' {
+		return
+	}
+
+	key := ""
+	defaultV := ""
+	// value start with "${"
+	for i := 2; i < vLen; i++ {
+		if value[i] == '|' && (i+1 < vLen && value[i+1] == '|') {
+			key = value[2:i]
+			defaultV = value[i+2 : vLen-1] // other string is default value.
+			break
+		} else if value[i] == '}' {
+			key = value[2:i]
+			break
+		}
+	}
+
+	realValue = os.Getenv(key)
+	if realValue == "" {
+		realValue = defaultV
+	}
+
+	return
+}
+
+// ParseBool returns the boolean value represented by the string.
+//
+// It accepts 1, 1.0, t, T, TRUE, true, True, YES, yes, Yes,Y, y, ON, on, On,
+// 0, 0.0, f, F, FALSE, false, False, NO, no, No, N,n, OFF, off, Off.
+// Any other value returns an error.
+func ParseBool(val interface{}) (value bool, err error) {
+	if val != nil {
+		switch v := val.(type) {
+		case bool:
+			return v, nil
+		case string:
+			switch v {
+			case "1", "t", "T", "true", "TRUE", "True", "YES", "yes", "Yes", "Y", "y", "ON", "on", "On":
+				return true, nil
+			case "0", "f", "F", "false", "FALSE", "False", "NO", "no", "No", "N", "n", "OFF", "off", "Off":
+				return false, nil
+			}
+		case int8, int32, int64:
+			strV := fmt.Sprintf("%d", v)
+			if strV == "1" {
+				return true, nil
+			} else if strV == "0" {
+				return false, nil
+			}
+		case float64:
+			if v == 1.0 {
+				return true, nil
+			} else if v == 0.0 {
+				return false, nil
+			}
+		}
+		return false, fmt.Errorf("parsing %q: invalid syntax", val)
+	}
+	return false, fmt.Errorf("parsing <nil>: invalid syntax")
+}
+
+// ToString converts values of any type to string.
+func ToString(x interface{}) string {
+	switch y := x.(type) {
+
+	// Handle dates with special logic
+	// This needs to come above the fmt.Stringer
+	// test since time.Time's have a .String()
+	// method
+	case time.Time:
+		return y.Format("A Monday")
+
+	// Handle type string
+	case string:
+		return y
+
+	// Handle type with .String() method
+	case fmt.Stringer:
+		return y.String()
+
+	// Handle type with .Error() method
+	case error:
+		return y.Error()
+
+	}
+
+	// Handle named string type
+	if v := reflect.ValueOf(x); v.Kind() == reflect.String {
+		return v.String()
+	}
+
+	// Fallback to fmt package for anything else like numeric types
+	return fmt.Sprint(x)
+}

pkg/config/config_test.go

@@ -0,0 +1,55 @@
+// Copyright 2016 beego Author. All Rights Reserved.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//      http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package config
+
+import (
+	"os"
+	"testing"
+)
+
+func TestExpandValueEnv(t *testing.T) {
+
+	testCases := []struct {
+		item string
+		want string
+	}{
+		{"", ""},
+		{"$", "$"},
+		{"{", "{"},
+		{"{}", "{}"},
+		{"${}", ""},
+		{"${|}", ""},
+		{"${}", ""},
+		{"${{}}", ""},
+		{"${{||}}", "}"},
+		{"${pwd||}", ""},
+		{"${pwd||}", ""},
+		{"${pwd||}", ""},
+		{"${pwd||}}", "}"},
+		{"${pwd||{{||}}}", "{{||}}"},
+		{"${GOPATH}", os.Getenv("GOPATH")},
+		{"${GOPATH||}", os.Getenv("GOPATH")},
+		{"${GOPATH||root}", os.Getenv("GOPATH")},
+		{"${GOPATH_NOT||root}", "root"},
+		{"${GOPATH_NOT||||root}", "||root"},
+	}
+
+	for _, c := range testCases {
+		if got := ExpandValueEnv(c.item); got != c.want {
+			t.Errorf("expand value error, item %q want %q, got %q", c.item, c.want, got)
+		}
+	}
+
+}

pkg/config/env/env.go

@@ -0,0 +1,87 @@
+// Copyright 2014 beego Author. All Rights Reserved.
+// Copyright 2017 Faissal Elamraoui. All Rights Reserved.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//      http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+// Package env is used to parse environment.
+package env
+
+import (
+	"fmt"
+	"os"
+	"strings"
+
+	"github.com/astaxie/beego/utils"
+)
+
+var env *utils.BeeMap
+
+func init() {
+	env = utils.NewBeeMap()
+	for _, e := range os.Environ() {
+		splits := strings.Split(e, "=")
+		env.Set(splits[0], os.Getenv(splits[0]))
+	}
+}
+
+// Get returns a value by key.
+// If the key does not exist, the default value will be returned.
+func Get(key string, defVal string) string {
+	if val := env.Get(key); val != nil {
+		return val.(string)
+	}
+	return defVal
+}
+
+// MustGet returns a value by key.
+// If the key does not exist, it will return an error.
+func MustGet(key string) (string, error) {
+	if val := env.Get(key); val != nil {
+		return val.(string), nil
+	}
+	return "", fmt.Errorf("no env variable with %s", key)
+}
+
+// Set sets a value in the ENV copy.
+// This does not affect the child process environment.
+func Set(key string, value string) {
+	env.Set(key, value)
+}
+
+// MustSet sets a value in the ENV copy and the child process environment.
+// It returns an error in case the set operation failed.
+func MustSet(key string, value string) error {
+	err := os.Setenv(key, value)
+	if err != nil {
+		return err
+	}
+	env.Set(key, value)
+	return nil
+}
+
+// GetAll returns all keys/values in the current child process environment.
+func GetAll() map[string]string {
+	items := env.Items()
+	envs := make(map[string]string, env.Count())
+
+	for key, val := range items {
+		switch key := key.(type) {
+		case string:
+			switch val := val.(type) {
+			case string:
+				envs[key] = val
+			}
+		}
+	}
+	return envs
+}

pkg/config/env/env_test.go

@@ -0,0 +1,75 @@
+// Copyright 2014 beego Author. All Rights Reserved.
+// Copyright 2017 Faissal Elamraoui. All Rights Reserved.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//      http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+package env
+
+import (
+	"os"
+	"testing"
+)
+
+func TestEnvGet(t *testing.T) {
+	gopath := Get("GOPATH", "")
+	if gopath != os.Getenv("GOPATH") {
+		t.Error("expected GOPATH not empty.")
+	}
+
+	noExistVar := Get("NOEXISTVAR", "foo")
+	if noExistVar != "foo" {
+		t.Errorf("expected NOEXISTVAR to equal foo, got %s.", noExistVar)
+	}
+}
+
+func TestEnvMustGet(t *testing.T) {
+	gopath, err := MustGet("GOPATH")
+	if err != nil {
+		t.Error(err)
+	}
+
+	if gopath != os.Getenv("GOPATH") {
+		t.Errorf("expected GOPATH to be the same, got %s.", gopath)
+	}
+
+	_, err = MustGet("NOEXISTVAR")
+	if err == nil {
+		t.Error("expected error to be non-nil")
+	}
+}
+
+func TestEnvSet(t *testing.T) {
+	Set("MYVAR", "foo")
+	myVar := Get("MYVAR", "bar")
+	if myVar != "foo" {
+		t.Errorf("expected MYVAR to equal foo, got %s.", myVar)
+	}
+}
+
+func TestEnvMustSet(t *testing.T) {
+	err := MustSet("FOO", "bar")
+	if err != nil {
+		t.Error(err)
+	}
+
+	fooVar := os.Getenv("FOO")
+	if fooVar != "bar" {
+		t.Errorf("expected FOO variable to equal bar, got %s.", fooVar)
+	}
+}
+
+func TestEnvGetAll(t *testing.T) {
+	envMap := GetAll()
+	if len(envMap) == 0 {
+		t.Error("expected environment not empty.")
+	}
+}

pkg/config/fake.go

@@ -0,0 +1,134 @@
+// Copyright 2014 beego Author. All Rights Reserved.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//      http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package config
+
+import (
+	"errors"
+	"strconv"
+	"strings"
+)
+
+type fakeConfigContainer struct {
+	data map[string]string
+}
+
+func (c *fakeConfigContainer) getData(key string) string {
+	return c.data[strings.ToLower(key)]
+}
+
+func (c *fakeConfigContainer) Set(key, val string) error {
+	c.data[strings.ToLower(key)] = val
+	return nil
+}
+
+func (c *fakeConfigContainer) String(key string) string {
+	return c.getData(key)
+}
+
+func (c *fakeConfigContainer) DefaultString(key string, defaultval string) string {
+	v := c.String(key)
+	if v == "" {
+		return defaultval
+	}
+	return v
+}
+
+func (c *fakeConfigContainer) Strings(key string) []string {
+	v := c.String(key)
+	if v == "" {
+		return nil
+	}
+	return strings.Split(v, ";")
+}
+
+func (c *fakeConfigContainer) DefaultStrings(key string, defaultval []string) []string {
+	v := c.Strings(key)
+	if v == nil {
+		return defaultval
+	}
+	return v
+}
+
+func (c *fakeConfigContainer) Int(key string) (int, error) {
+	return strconv.Atoi(c.getData(key))
+}
+
+func (c *fakeConfigContainer) DefaultInt(key string, defaultval int) int {
+	v, err := c.Int(key)
+	if err != nil {
+		return defaultval
+	}
+	return v
+}
+
+func (c *fakeConfigContainer) Int64(key string) (int64, error) {
+	return strconv.ParseInt(c.getData(key), 10, 64)
+}
+
+func (c *fakeConfigContainer) DefaultInt64(key string, defaultval int64) int64 {
+	v, err := c.Int64(key)
+	if err != nil {
+		return defaultval
+	}
+	return v
+}
+
+func (c *fakeConfigContainer) Bool(key string) (bool, error) {
+	return ParseBool(c.getData(key))
+}
+
+func (c *fakeConfigContainer) DefaultBool(key string, defaultval bool) bool {
+	v, err := c.Bool(key)
+	if err != nil {
+		return defaultval
+	}
+	return v
+}
+
+func (c *fakeConfigContainer) Float(key string) (float64, error) {
+	return strconv.ParseFloat(c.getData(key), 64)
+}
+
+func (c *fakeConfigContainer) DefaultFloat(key string, defaultval float64) float64 {
+	v, err := c.Float(key)
+	if err != nil {
+		return defaultval
+	}
+	return v
+}
+
+func (c *fakeConfigContainer) DIY(key string) (interface{}, error) {
+	if v, ok := c.data[strings.ToLower(key)]; ok {
+		return v, nil
+	}
+	return nil, errors.New("key not find")
+}
+
+func (c *fakeConfigContainer) GetSection(section string) (map[string]string, error) {
+	return nil, errors.New("not implement in the fakeConfigContainer")
+}
+
+func (c *fakeConfigContainer) SaveConfigFile(filename string) error {
+	return errors.New("not implement in the fakeConfigContainer")
+}
+
+var _ Configer = new(fakeConfigContainer)
+
+// NewFakeConfig return a fake Configer
+func NewFakeConfig() Configer {
+	return &fakeConfigContainer{
+		data: make(map[string]string),
+	}
+}

pkg/config/ini.go

@@ -0,0 +1,504 @@
+// Copyright 2014 beego Author. All Rights Reserved.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//      http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package config
+
+import (
+	"bufio"
+	"bytes"
+	"errors"
+	"io"
+	"io/ioutil"
+	"os"
+	"os/user"
+	"path/filepath"
+	"strconv"
+	"strings"
+	"sync"
+)
+
+var (
+	defaultSection = "default"   // default section means if some ini items not in a section, make them in default section,
+	bNumComment    = []byte{'#'} // number signal
+	bSemComment    = []byte{';'} // semicolon signal
+	bEmpty         = []byte{}
+	bEqual         = []byte{'='} // equal signal
+	bDQuote        = []byte{'"'} // quote signal
+	sectionStart   = []byte{'['} // section start signal
+	sectionEnd     = []byte{']'} // section end signal
+	lineBreak      = "\n"
+)
+
+// IniConfig implements Config to parse ini file.
+type IniConfig struct {
+}
+
+// Parse creates a new Config and parses the file configuration from the named file.
+func (ini *IniConfig) Parse(name string) (Configer, error) {
+	return ini.parseFile(name)
+}
+
+func (ini *IniConfig) parseFile(name string) (*IniConfigContainer, error) {
+	data, err := ioutil.ReadFile(name)
+	if err != nil {
+		return nil, err
+	}
+
+	return ini.parseData(filepath.Dir(name), data)
+}
+
+func (ini *IniConfig) parseData(dir string, data []byte) (*IniConfigContainer, error) {
+	cfg := &IniConfigContainer{
+		data:           make(map[string]map[string]string),
+		sectionComment: make(map[string]string),
+		keyComment:     make(map[string]string),
+		RWMutex:        sync.RWMutex{},
+	}
+	cfg.Lock()
+	defer cfg.Unlock()
+
+	var comment bytes.Buffer
+	buf := bufio.NewReader(bytes.NewBuffer(data))
+	// check the BOM
+	head, err := buf.Peek(3)
+	if err == nil && head[0] == 239 && head[1] == 187 && head[2] == 191 {
+		for i := 1; i <= 3; i++ {
+			buf.ReadByte()
+		}
+	}
+	section := defaultSection
+	tmpBuf := bytes.NewBuffer(nil)
+	for {
+		tmpBuf.Reset()
+
+		shouldBreak := false
+		for {
+			tmp, isPrefix, err := buf.ReadLine()
+			if err == io.EOF {
+				shouldBreak = true
+				break
+			}
+
+			//It might be a good idea to throw a error on all unknonw errors?
+			if _, ok := err.(*os.PathError); ok {
+				return nil, err
+			}
+
+			tmpBuf.Write(tmp)
+			if isPrefix {
+				continue
+			}
+
+			if !isPrefix {
+				break
+			}
+		}
+		if shouldBreak {
+			break
+		}
+
+		line := tmpBuf.Bytes()
+		line = bytes.TrimSpace(line)
+		if bytes.Equal(line, bEmpty) {
+			continue
+		}
+		var bComment []byte
+		switch {
+		case bytes.HasPrefix(line, bNumComment):
+			bComment = bNumComment
+		case bytes.HasPrefix(line, bSemComment):
+			bComment = bSemComment
+		}
+		if bComment != nil {
+			line = bytes.TrimLeft(line, string(bComment))
+			// Need append to a new line if multi-line comments.
+			if comment.Len() > 0 {
+				comment.WriteByte('\n')
+			}
+			comment.Write(line)
+			continue
+		}
+
+		if bytes.HasPrefix(line, sectionStart) && bytes.HasSuffix(line, sectionEnd) {
+			section = strings.ToLower(string(line[1 : len(line)-1])) // section name case insensitive
+			if comment.Len() > 0 {
+				cfg.sectionComment[section] = comment.String()
+				comment.Reset()
+			}
+			if _, ok := cfg.data[section]; !ok {
+				cfg.data[section] = make(map[string]string)
+			}
+			continue
+		}
+
+		if _, ok := cfg.data[section]; !ok {
+			cfg.data[section] = make(map[string]string)
+		}
+		keyValue := bytes.SplitN(line, bEqual, 2)
+
+		key := string(bytes.TrimSpace(keyValue[0])) // key name case insensitive
+		key = strings.ToLower(key)
+
+		// handle include "other.conf"
+		if len(keyValue) == 1 && strings.HasPrefix(key, "include") {
+
+			includefiles := strings.Fields(key)
+			if includefiles[0] == "include" && len(includefiles) == 2 {
+
+				otherfile := strings.Trim(includefiles[1], "\"")
+				if !filepath.IsAbs(otherfile) {
+					otherfile = filepath.Join(dir, otherfile)
+				}
+
+				i, err := ini.parseFile(otherfile)
+				if err != nil {
+					return nil, err
+				}
+
+				for sec, dt := range i.data {
+					if _, ok := cfg.data[sec]; !ok {
+						cfg.data[sec] = make(map[string]string)
+					}
+					for k, v := range dt {
+						cfg.data[sec][k] = v
+					}
+				}
+
+				for sec, comm := range i.sectionComment {
+					cfg.sectionComment[sec] = comm
+				}
+
+				for k, comm := range i.keyComment {
+					cfg.keyComment[k] = comm
+				}
+
+				continue
+			}
+		}
+
+		if len(keyValue) != 2 {
+			return nil, errors.New("read the content error: \"" + string(line) + "\", should key = val")
+		}
+		val := bytes.TrimSpace(keyValue[1])
+		if bytes.HasPrefix(val, bDQuote) {
+			val = bytes.Trim(val, `"`)
+		}
+
+		cfg.data[section][key] = ExpandValueEnv(string(val))
+		if comment.Len() > 0 {
+			cfg.keyComment[section+"."+key] = comment.String()
+			comment.Reset()
+		}
+
+	}
+	return cfg, nil
+}
+
+// ParseData parse ini the data
+// When include other.conf,other.conf is either absolute directory
+// or under beego in default temporary directory(/tmp/beego[-username]).
+func (ini *IniConfig) ParseData(data []byte) (Configer, error) {
+	dir := "beego"
+	currentUser, err := user.Current()
+	if err == nil {
+		dir = "beego-" + currentUser.Username
+	}
+	dir = filepath.Join(os.TempDir(), dir)
+	if err = os.MkdirAll(dir, os.ModePerm); err != nil {
+		return nil, err
+	}
+
+	return ini.parseData(dir, data)
+}
+
+// IniConfigContainer A Config represents the ini configuration.
+// When set and get value, support key as section:name type.
+type IniConfigContainer struct {
+	data           map[string]map[string]string // section=> key:val
+	sectionComment map[string]string            // section : comment
+	keyComment     map[string]string            // id: []{comment, key...}; id 1 is for main comment.
+	sync.RWMutex
+}
+
+// Bool returns the boolean value for a given key.
+func (c *IniConfigContainer) Bool(key string) (bool, error) {
+	return ParseBool(c.getdata(key))
+}
+
+// DefaultBool returns the boolean value for a given key.
+// if err != nil return defaultval
+func (c *IniConfigContainer) DefaultBool(key string, defaultval bool) bool {
+	v, err := c.Bool(key)
+	if err != nil {
+		return defaultval
+	}
+	return v
+}
+
+// Int returns the integer value for a given key.
+func (c *IniConfigContainer) Int(key string) (int, error) {
+	return strconv.Atoi(c.getdata(key))
+}
+
+// DefaultInt returns the integer value for a given key.
+// if err != nil return defaultval
+func (c *IniConfigContainer) DefaultInt(key string, defaultval int) int {
+	v, err := c.Int(key)
+	if err != nil {
+		return defaultval
+	}
+	return v
+}
+
+// Int64 returns the int64 value for a given key.
+func (c *IniConfigContainer) Int64(key string) (int64, error) {
+	return strconv.ParseInt(c.getdata(key), 10, 64)
+}
+
+// DefaultInt64 returns the int64 value for a given key.
+// if err != nil return defaultval
+func (c *IniConfigContainer) DefaultInt64(key string, defaultval int64) int64 {
+	v, err := c.Int64(key)
+	if err != nil {
+		return defaultval
+	}
+	return v
+}
+
+// Float returns the float value for a given key.
+func (c *IniConfigContainer) Float(key string) (float64, error) {
+	return strconv.ParseFloat(c.getdata(key), 64)
+}
+
+// DefaultFloat returns the float64 value for a given key.
+// if err != nil return defaultval
+func (c *IniConfigContainer) DefaultFloat(key string, defaultval float64) float64 {
+	v, err := c.Float(key)
+	if err != nil {
+		return defaultval
+	}
+	return v
+}
+
+// String returns the string value for a given key.
+func (c *IniConfigContainer) String(key string) string {
+	return c.getdata(key)
+}
+
+// DefaultString returns the string value for a given key.
+// if err != nil return defaultval
+func (c *IniConfigContainer) DefaultString(key string, defaultval string) string {
+	v := c.String(key)
+	if v == "" {
+		return defaultval
+	}
+	return v
+}
+
+// Strings returns the []string value for a given key.
+// Return nil if config value does not exist or is empty.
+func (c *IniConfigContainer) Strings(key string) []string {
+	v := c.String(key)
+	if v == "" {
+		return nil
+	}
+	return strings.Split(v, ";")
+}
+
+// DefaultStrings returns the []string value for a given key.
+// if err != nil return defaultval
+func (c *IniConfigContainer) DefaultStrings(key string, defaultval []string) []string {
+	v := c.Strings(key)
+	if v == nil {
+		return defaultval
+	}
+	return v
+}
+
+// GetSection returns map for the given section
+func (c *IniConfigContainer) GetSection(section string) (map[string]string, error) {
+	if v, ok := c.data[section]; ok {
+		return v, nil
+	}
+	return nil, errors.New("not exist section")
+}
+
+// SaveConfigFile save the config into file.
+//
+// BUG(env): The environment variable config item will be saved with real value in SaveConfigFile Function.
+func (c *IniConfigContainer) SaveConfigFile(filename string) (err error) {
+	// Write configuration file by filename.
+	f, err := os.Create(filename)
+	if err != nil {
+		return err
+	}
+	defer f.Close()
+
+	// Get section or key comments. Fixed #1607
+	getCommentStr := func(section, key string) string {
+		var (
+			comment string
+			ok      bool
+		)
+		if len(key) == 0 {
+			comment, ok = c.sectionComment[section]
+		} else {
+			comment, ok = c.keyComment[section+"."+key]
+		}
+
+		if ok {
+			// Empty comment
+			if len(comment) == 0 || len(strings.TrimSpace(comment)) == 0 {
+				return string(bNumComment)
+			}
+			prefix := string(bNumComment)
+			// Add the line head character "#"
+			return prefix + strings.Replace(comment, lineBreak, lineBreak+prefix, -1)
+		}
+		return ""
+	}
+
+	buf := bytes.NewBuffer(nil)
+	// Save default section at first place
+	if dt, ok := c.data[defaultSection]; ok {
+		for key, val := range dt {
+			if key != " " {
+				// Write key comments.
+				if v := getCommentStr(defaultSection, key); len(v) > 0 {
+					if _, err = buf.WriteString(v + lineBreak); err != nil {
+						return err
+					}
+				}
+
+				// Write key and value.
+				if _, err = buf.WriteString(key + string(bEqual) + val + lineBreak); err != nil {
+					return err
+				}
+			}
+		}
+
+		// Put a line between sections.
+		if _, err = buf.WriteString(lineBreak); err != nil {
+			return err
+		}
+	}
+	// Save named sections
+	for section, dt := range c.data {
+		if section != defaultSection {
+			// Write section comments.
+			if v := getCommentStr(section, ""); len(v) > 0 {
+				if _, err = buf.WriteString(v + lineBreak); err != nil {
+					return err
+				}
+			}
+
+			// Write section name.
+			if _, err = buf.WriteString(string(sectionStart) + section + string(sectionEnd) + lineBreak); err != nil {
+				return err
+			}
+
+			for key, val := range dt {
+				if key != " " {
+					// Write key comments.
+					if v := getCommentStr(section, key); len(v) > 0 {
+						if _, err = buf.WriteString(v + lineBreak); err != nil {
+							return err
+						}
+					}
+
+					// Write key and value.
+					if _, err = buf.WriteString(key + string(bEqual) + val + lineBreak); err != nil {
+						return err
+					}
+				}
+			}
+
+			// Put a line between sections.
+			if _, err = buf.WriteString(lineBreak); err != nil {
+				return err
+			}
+		}
+	}
+	_, err = buf.WriteTo(f)
+	return err
+}
+
+// Set writes a new value for key.
+// if write to one section, the key need be "section::key".
+// if the section is not existed, it panics.
+func (c *IniConfigContainer) Set(key, value string) error {
+	c.Lock()
+	defer c.Unlock()
+	if len(key) == 0 {
+		return errors.New("key is empty")
+	}
+
+	var (
+		section, k string
+		sectionKey = strings.Split(strings.ToLower(key), "::")
+	)
+
+	if len(sectionKey) >= 2 {
+		section = sectionKey[0]
+		k = sectionKey[1]
+	} else {
+		section = defaultSection
+		k = sectionKey[0]
+	}
+
+	if _, ok := c.data[section]; !ok {
+		c.data[section] = make(map[string]string)
+	}
+	c.data[section][k] = value
+	return nil
+}
+
+// DIY returns the raw value by a given key.
+func (c *IniConfigContainer) DIY(key string) (v interface{}, err error) {
+	if v, ok := c.data[strings.ToLower(key)]; ok {
+		return v, nil
+	}
+	return v, errors.New("key not find")
+}
+
+// section.key or key
+func (c *IniConfigContainer) getdata(key string) string {
+	if len(key) == 0 {
+		return ""
+	}
+	c.RLock()
+	defer c.RUnlock()
+
+	var (
+		section, k string
+		sectionKey = strings.Split(strings.ToLower(key), "::")
+	)
+	if len(sectionKey) >= 2 {
+		section = sectionKey[0]
+		k = sectionKey[1]
+	} else {
+		section = defaultSection
+		k = sectionKey[0]
+	}
+	if v, ok := c.data[section]; ok {
+		if vv, ok := v[k]; ok {
+			return vv
+		}
+	}
+	return ""
+}
+
+func init() {
+	Register("ini", &IniConfig{})
+}

pkg/config/ini_test.go

@@ -0,0 +1,190 @@
+// Copyright 2014 beego Author. All Rights Reserved.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//      http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package config
+
+import (
+	"fmt"
+	"io/ioutil"
+	"os"
+	"strings"
+	"testing"
+)
+
+func TestIni(t *testing.T) {
+
+	var (
+		inicontext = `
+;comment one
+#comment two
+appname = beeapi
+httpport = 8080
+mysqlport = 3600
+PI = 3.1415976
+runmode = "dev"
+autorender = false
+copyrequestbody = true
+session= on
+cookieon= off
+newreg = OFF
+needlogin = ON
+enableSession = Y
+enableCookie = N
+flag = 1
+path1 = ${GOPATH}
+path2 = ${GOPATH||/home/go}
+[demo]
+key1="asta"
+key2 = "xie"
+CaseInsensitive = true
+peers = one;two;three
+password = ${GOPATH}
+`
+
+		keyValue = map[string]interface{}{
+			"appname":               "beeapi",
+			"httpport":              8080,
+			"mysqlport":             int64(3600),
+			"pi":                    3.1415976,
+			"runmode":               "dev",
+			"autorender":            false,
+			"copyrequestbody":       true,
+			"session":               true,
+			"cookieon":              false,
+			"newreg":                false,
+			"needlogin":             true,
+			"enableSession":         true,
+			"enableCookie":          false,
+			"flag":                  true,
+			"path1":                 os.Getenv("GOPATH"),
+			"path2":                 os.Getenv("GOPATH"),
+			"demo::key1":            "asta",
+			"demo::key2":            "xie",
+			"demo::CaseInsensitive": true,
+			"demo::peers":           []string{"one", "two", "three"},
+			"demo::password":        os.Getenv("GOPATH"),
+			"null":                  "",
+			"demo2::key1":           "",
+			"error":                 "",
+			"emptystrings":          []string{},
+		}
+	)
+
+	f, err := os.Create("testini.conf")
+	if err != nil {
+		t.Fatal(err)
+	}
+	_, err = f.WriteString(inicontext)
+	if err != nil {
+		f.Close()
+		t.Fatal(err)
+	}
+	f.Close()
+	defer os.Remove("testini.conf")
+	iniconf, err := NewConfig("ini", "testini.conf")
+	if err != nil {
+		t.Fatal(err)
+	}
+	for k, v := range keyValue {
+		var err error
+		var value interface{}
+		switch v.(type) {
+		case int:
+			value, err = iniconf.Int(k)
+		case int64:
+			value, err = iniconf.Int64(k)
+		case float64:
+			value, err = iniconf.Float(k)
+		case bool:
+			value, err = iniconf.Bool(k)
+		case []string:
+			value = iniconf.Strings(k)
+		case string:
+			value = iniconf.String(k)
+		default:
+			value, err = iniconf.DIY(k)
+		}
+		if err != nil {
+			t.Fatalf("get key %q value fail,err %s", k, err)
+		} else if fmt.Sprintf("%v", v) != fmt.Sprintf("%v", value) {
+			t.Fatalf("get key %q value, want %v got %v .", k, v, value)
+		}
+
+	}
+	if err = iniconf.Set("name", "astaxie"); err != nil {
+		t.Fatal(err)
+	}
+	if iniconf.String("name") != "astaxie" {
+		t.Fatal("get name error")
+	}
+
+}
+
+func TestIniSave(t *testing.T) {
+
+	const (
+		inicontext = `
+app = app
+;comment one
+#comment two
+# comment three
+appname = beeapi
+httpport = 8080
+# DB Info
+# enable db
+[dbinfo]
+# db type name
+# suport mysql,sqlserver
+name = mysql
+`
+
+		saveResult = `
+app=app
+#comment one
+#comment two
+# comment three
+appname=beeapi
+httpport=8080
+
+# DB Info
+# enable db
+[dbinfo]
+# db type name
+# suport mysql,sqlserver
+name=mysql
+`
+	)
+	cfg, err := NewConfigData("ini", []byte(inicontext))
+	if err != nil {
+		t.Fatal(err)
+	}
+	name := "newIniConfig.ini"
+	if err := cfg.SaveConfigFile(name); err != nil {
+		t.Fatal(err)
+	}
+	defer os.Remove(name)
+
+	if data, err := ioutil.ReadFile(name); err != nil {
+		t.Fatal(err)
+	} else {
+		cfgData := string(data)
+		datas := strings.Split(saveResult, "\n")
+		for _, line := range datas {
+			if !strings.Contains(cfgData, line+"\n") {
+				t.Fatalf("different after save ini config file. need contains %q", line)
+			}
+		}
+
+	}
+}

pkg/config/json.go

@@ -0,0 +1,269 @@
+// Copyright 2014 beego Author. All Rights Reserved.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//      http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package config
+
+import (
+	"encoding/json"
+	"errors"
+	"fmt"
+	"io/ioutil"
+	"os"
+	"strconv"
+	"strings"
+	"sync"
+)
+
+// JSONConfig is a json config parser and implements Config interface.
+type JSONConfig struct {
+}
+
+// Parse returns a ConfigContainer with parsed json config map.
+func (js *JSONConfig) Parse(filename string) (Configer, error) {
+	file, err := os.Open(filename)
+	if err != nil {
+		return nil, err
+	}
+	defer file.Close()
+	content, err := ioutil.ReadAll(file)
+	if err != nil {
+		return nil, err
+	}
+
+	return js.ParseData(content)
+}
+
+// ParseData returns a ConfigContainer with json string
+func (js *JSONConfig) ParseData(data []byte) (Configer, error) {
+	x := &JSONConfigContainer{
+		data: make(map[string]interface{}),
+	}
+	err := json.Unmarshal(data, &x.data)
+	if err != nil {
+		var wrappingArray []interface{}
+		err2 := json.Unmarshal(data, &wrappingArray)
+		if err2 != nil {
+			return nil, err
+		}
+		x.data["rootArray"] = wrappingArray
+	}
+
+	x.data = ExpandValueEnvForMap(x.data)
+
+	return x, nil
+}
+
+// JSONConfigContainer A Config represents the json configuration.
+// Only when get value, support key as section:name type.
+type JSONConfigContainer struct {
+	data map[string]interface{}
+	sync.RWMutex
+}
+
+// Bool returns the boolean value for a given key.
+func (c *JSONConfigContainer) Bool(key string) (bool, error) {
+	val := c.getData(key)
+	if val != nil {
+		return ParseBool(val)
+	}
+	return false, fmt.Errorf("not exist key: %q", key)
+}
+
+// DefaultBool return the bool value if has no error
+// otherwise return the defaultval
+func (c *JSONConfigContainer) DefaultBool(key string, defaultval bool) bool {
+	if v, err := c.Bool(key); err == nil {
+		return v
+	}
+	return defaultval
+}
+
+// Int returns the integer value for a given key.
+func (c *JSONConfigContainer) Int(key string) (int, error) {
+	val := c.getData(key)
+	if val != nil {
+		if v, ok := val.(float64); ok {
+			return int(v), nil
+		} else if v, ok := val.(string); ok {
+			return strconv.Atoi(v)
+		}
+		return 0, errors.New("not valid value")
+	}
+	return 0, errors.New("not exist key:" + key)
+}
+
+// DefaultInt returns the integer value for a given key.
+// if err != nil return defaultval
+func (c *JSONConfigContainer) DefaultInt(key string, defaultval int) int {
+	if v, err := c.Int(key); err == nil {
+		return v
+	}
+	return defaultval
+}
+
+// Int64 returns the int64 value for a given key.
+func (c *JSONConfigContainer) Int64(key string) (int64, error) {
+	val := c.getData(key)
+	if val != nil {
+		if v, ok := val.(float64); ok {
+			return int64(v), nil
+		}
+		return 0, errors.New("not int64 value")
+	}
+	return 0, errors.New("not exist key:" + key)
+}
+
+// DefaultInt64 returns the int64 value for a given key.
+// if err != nil return defaultval
+func (c *JSONConfigContainer) DefaultInt64(key string, defaultval int64) int64 {
+	if v, err := c.Int64(key); err == nil {
+		return v
+	}
+	return defaultval
+}
+
+// Float returns the float value for a given key.
+func (c *JSONConfigContainer) Float(key string) (float64, error) {
+	val := c.getData(key)
+	if val != nil {
+		if v, ok := val.(float64); ok {
+			return v, nil
+		}
+		return 0.0, errors.New("not float64 value")
+	}
+	return 0.0, errors.New("not exist key:" + key)
+}
+
+// DefaultFloat returns the float64 value for a given key.
+// if err != nil return defaultval
+func (c *JSONConfigContainer) DefaultFloat(key string, defaultval float64) float64 {
+	if v, err := c.Float(key); err == nil {
+		return v
+	}
+	return defaultval
+}
+
+// String returns the string value for a given key.
+func (c *JSONConfigContainer) String(key string) string {
+	val := c.getData(key)
+	if val != nil {
+		if v, ok := val.(string); ok {
+			return v
+		}
+	}
+	return ""
+}
+
+// DefaultString returns the string value for a given key.
+// if err != nil return defaultval
+func (c *JSONConfigContainer) DefaultString(key string, defaultval string) string {
+	// TODO FIXME should not use "" to replace non existence
+	if v := c.String(key); v != "" {
+		return v
+	}
+	return defaultval
+}
+
+// Strings returns the []string value for a given key.
+func (c *JSONConfigContainer) Strings(key string) []string {
+	stringVal := c.String(key)
+	if stringVal == "" {
+		return nil
+	}
+	return strings.Split(c.String(key), ";")
+}
+
+// DefaultStrings returns the []string value for a given key.
+// if err != nil return defaultval
+func (c *JSONConfigContainer) DefaultStrings(key string, defaultval []string) []string {
+	if v := c.Strings(key); v != nil {
+		return v
+	}
+	return defaultval
+}
+
+// GetSection returns map for the given section
+func (c *JSONConfigContainer) GetSection(section string) (map[string]string, error) {
+	if v, ok := c.data[section]; ok {
+		return v.(map[string]string), nil
+	}
+	return nil, errors.New("nonexist section " + section)
+}
+
+// SaveConfigFile save the config into file
+func (c *JSONConfigContainer) SaveConfigFile(filename string) (err error) {
+	// Write configuration file by filename.
+	f, err := os.Create(filename)
+	if err != nil {
+		return err
+	}
+	defer f.Close()
+	b, err := json.MarshalIndent(c.data, "", "  ")
+	if err != nil {
+		return err
+	}
+	_, err = f.Write(b)
+	return err
+}
+
+// Set writes a new value for key.
+func (c *JSONConfigContainer) Set(key, val string) error {
+	c.Lock()
+	defer c.Unlock()
+	c.data[key] = val
+	return nil
+}
+
+// DIY returns the raw value by a given key.
+func (c *JSONConfigContainer) DIY(key string) (v interface{}, err error) {
+	val := c.getData(key)
+	if val != nil {
+		return val, nil
+	}
+	return nil, errors.New("not exist key")
+}
+
+// section.key or key
+func (c *JSONConfigContainer) getData(key string) interface{} {
+	if len(key) == 0 {
+		return nil
+	}
+
+	c.RLock()
+	defer c.RUnlock()
+
+	sectionKeys := strings.Split(key, "::")
+	if len(sectionKeys) >= 2 {
+		curValue, ok := c.data[sectionKeys[0]]
+		if !ok {
+			return nil
+		}
+		for _, key := range sectionKeys[1:] {
+			if v, ok := curValue.(map[string]interface{}); ok {
+				if curValue, ok = v[key]; !ok {
+					return nil
+				}
+			}
+		}
+		return curValue
+	}
+	if v, ok := c.data[key]; ok {
+		return v
+	}
+	return nil
+}
+
+func init() {
+	Register("json", &JSONConfig{})
+}

pkg/config/json_test.go

@@ -0,0 +1,222 @@
+// Copyright 2014 beego Author. All Rights Reserved.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//      http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package config
+
+import (
+	"fmt"
+	"os"
+	"testing"
+)
+
+func TestJsonStartsWithArray(t *testing.T) {
+
+	const jsoncontextwitharray = `[
+	{
+		"url": "user",
+		"serviceAPI": "http://www.test.com/user"
+	},
+	{
+		"url": "employee",
+		"serviceAPI": "http://www.test.com/employee"
+	}
+]`
+	f, err := os.Create("testjsonWithArray.conf")
+	if err != nil {
+		t.Fatal(err)
+	}
+	_, err = f.WriteString(jsoncontextwitharray)
+	if err != nil {
+		f.Close()
+		t.Fatal(err)
+	}
+	f.Close()
+	defer os.Remove("testjsonWithArray.conf")
+	jsonconf, err := NewConfig("json", "testjsonWithArray.conf")
+	if err != nil {
+		t.Fatal(err)
+	}
+	rootArray, err := jsonconf.DIY("rootArray")
+	if err != nil {
+		t.Error("array does not exist as element")
+	}
+	rootArrayCasted := rootArray.([]interface{})
+	if rootArrayCasted == nil {
+		t.Error("array from root is nil")
+	} else {
+		elem := rootArrayCasted[0].(map[string]interface{})
+		if elem["url"] != "user" || elem["serviceAPI"] != "http://www.test.com/user" {
+			t.Error("array[0] values are not valid")
+		}
+
+		elem2 := rootArrayCasted[1].(map[string]interface{})
+		if elem2["url"] != "employee" || elem2["serviceAPI"] != "http://www.test.com/employee" {
+			t.Error("array[1] values are not valid")
+		}
+	}
+}
+
+func TestJson(t *testing.T) {
+
+	var (
+		jsoncontext = `{
+"appname": "beeapi",
+"testnames": "foo;bar",
+"httpport": 8080,
+"mysqlport": 3600,
+"PI": 3.1415976, 
+"runmode": "dev",
+"autorender": false,
+"copyrequestbody": true,
+"session": "on",
+"cookieon": "off",
+"newreg": "OFF",
+"needlogin": "ON",
+"enableSession": "Y",
+"enableCookie": "N",
+"flag": 1,
+"path1": "${GOPATH}",
+"path2": "${GOPATH||/home/go}",
+"database": {
+        "host": "host",
+        "port": "port",
+        "database": "database",
+        "username": "username",
+        "password": "${GOPATH}",
+		"conns":{
+			"maxconnection":12,
+			"autoconnect":true,
+			"connectioninfo":"info",
+			"root": "${GOPATH}"
+		}
+    }
+}`
+		keyValue = map[string]interface{}{
+			"appname":                         "beeapi",
+			"testnames":                       []string{"foo", "bar"},
+			"httpport":                        8080,
+			"mysqlport":                       int64(3600),
+			"PI":                              3.1415976,
+			"runmode":                         "dev",
+			"autorender":                      false,
+			"copyrequestbody":                 true,
+			"session":                         true,
+			"cookieon":                        false,
+			"newreg":                          false,
+			"needlogin":                       true,
+			"enableSession":                   true,
+			"enableCookie":                    false,
+			"flag":                            true,
+			"path1":                           os.Getenv("GOPATH"),
+			"path2":                           os.Getenv("GOPATH"),
+			"database::host":                  "host",
+			"database::port":                  "port",
+			"database::database":              "database",
+			"database::password":              os.Getenv("GOPATH"),
+			"database::conns::maxconnection":  12,
+			"database::conns::autoconnect":    true,
+			"database::conns::connectioninfo": "info",
+			"database::conns::root":           os.Getenv("GOPATH"),
+			"unknown":                         "",
+		}
+	)
+
+	f, err := os.Create("testjson.conf")
+	if err != nil {
+		t.Fatal(err)
+	}
+	_, err = f.WriteString(jsoncontext)
+	if err != nil {
+		f.Close()
+		t.Fatal(err)
+	}
+	f.Close()
+	defer os.Remove("testjson.conf")
+	jsonconf, err := NewConfig("json", "testjson.conf")
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	for k, v := range keyValue {
+		var err error
+		var value interface{}
+		switch v.(type) {
+		case int:
+			value, err = jsonconf.Int(k)
+		case int64:
+			value, err = jsonconf.Int64(k)
+		case float64:
+			value, err = jsonconf.Float(k)
+		case bool:
+			value, err = jsonconf.Bool(k)
+		case []string:
+			value = jsonconf.Strings(k)
+		case string:
+			value = jsonconf.String(k)
+		default:
+			value, err = jsonconf.DIY(k)
+		}
+		if err != nil {
+			t.Fatalf("get key %q value fatal,%v err %s", k, v, err)
+		} else if fmt.Sprintf("%v", v) != fmt.Sprintf("%v", value) {
+			t.Fatalf("get key %q value, want %v got %v .", k, v, value)
+		}
+
+	}
+	if err = jsonconf.Set("name", "astaxie"); err != nil {
+		t.Fatal(err)
+	}
+	if jsonconf.String("name") != "astaxie" {
+		t.Fatal("get name error")
+	}
+
+	if db, err := jsonconf.DIY("database"); err != nil {
+		t.Fatal(err)
+	} else if m, ok := db.(map[string]interface{}); !ok {
+		t.Log(db)
+		t.Fatal("db not map[string]interface{}")
+	} else {
+		if m["host"].(string) != "host" {
+			t.Fatal("get host err")
+		}
+	}
+
+	if _, err := jsonconf.Int("unknown"); err == nil {
+		t.Error("unknown keys should return an error when expecting an Int")
+	}
+
+	if _, err := jsonconf.Int64("unknown"); err == nil {
+		t.Error("unknown keys should return an error when expecting an Int64")
+	}
+
+	if _, err := jsonconf.Float("unknown"); err == nil {
+		t.Error("unknown keys should return an error when expecting a Float")
+	}
+
+	if _, err := jsonconf.DIY("unknown"); err == nil {
+		t.Error("unknown keys should return an error when expecting an interface{}")
+	}
+
+	if val := jsonconf.String("unknown"); val != "" {
+		t.Error("unknown keys should return an empty string when expecting a String")
+	}
+
+	if _, err := jsonconf.Bool("unknown"); err == nil {
+		t.Error("unknown keys should return an error when expecting a Bool")
+	}
+
+	if !jsonconf.DefaultBool("unknown", true) {
+		t.Error("unknown keys with default value wrong")
+	}
+}

pkg/config/xml/xml.go

@@ -0,0 +1,228 @@
+// Copyright 2014 beego Author. All Rights Reserved.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//      http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+// Package xml for config provider.
+//
+// depend on github.com/beego/x2j.
+//
+// go install github.com/beego/x2j.
+//
+// Usage:
+//  import(
+//    _ "github.com/astaxie/beego/config/xml"
+//      "github.com/astaxie/beego/config"
+//  )
+//
+//  cnf, err := config.NewConfig("xml", "config.xml")
+//
+//More docs http://beego.me/docs/module/config.md
+package xml
+
+import (
+	"encoding/xml"
+	"errors"
+	"fmt"
+	"io/ioutil"
+	"os"
+	"strconv"
+	"strings"
+	"sync"
+
+	"github.com/astaxie/beego/config"
+	"github.com/beego/x2j"
+)
+
+// Config is a xml config parser and implements Config interface.
+// xml configurations should be included in <config></config> tag.
+// only support key/value pair as <key>value</key> as each item.
+type Config struct{}
+
+// Parse returns a ConfigContainer with parsed xml config map.
+func (xc *Config) Parse(filename string) (config.Configer, error) {
+	context, err := ioutil.ReadFile(filename)
+	if err != nil {
+		return nil, err
+	}
+
+	return xc.ParseData(context)
+}
+
+// ParseData xml data
+func (xc *Config) ParseData(data []byte) (config.Configer, error) {
+	x := &ConfigContainer{data: make(map[string]interface{})}
+
+	d, err := x2j.DocToMap(string(data))
+	if err != nil {
+		return nil, err
+	}
+
+	x.data = config.ExpandValueEnvForMap(d["config"].(map[string]interface{}))
+
+	return x, nil
+}
+
+// ConfigContainer A Config represents the xml configuration.
+type ConfigContainer struct {
+	data map[string]interface{}
+	sync.Mutex
+}
+
+// Bool returns the boolean value for a given key.
+func (c *ConfigContainer) Bool(key string) (bool, error) {
+	if v := c.data[key]; v != nil {
+		return config.ParseBool(v)
+	}
+	return false, fmt.Errorf("not exist key: %q", key)
+}
+
+// DefaultBool return the bool value if has no error
+// otherwise return the defaultval
+func (c *ConfigContainer) DefaultBool(key string, defaultval bool) bool {
+	v, err := c.Bool(key)
+	if err != nil {
+		return defaultval
+	}
+	return v
+}
+
+// Int returns the integer value for a given key.
+func (c *ConfigContainer) Int(key string) (int, error) {
+	return strconv.Atoi(c.data[key].(string))
+}
+
+// DefaultInt returns the integer value for a given key.
+// if err != nil return defaultval
+func (c *ConfigContainer) DefaultInt(key string, defaultval int) int {
+	v, err := c.Int(key)
+	if err != nil {
+		return defaultval
+	}
+	return v
+}
+
+// Int64 returns the int64 value for a given key.
+func (c *ConfigContainer) Int64(key string) (int64, error) {
+	return strconv.ParseInt(c.data[key].(string), 10, 64)
+}
+
+// DefaultInt64 returns the int64 value for a given key.
+// if err != nil return defaultval
+func (c *ConfigContainer) DefaultInt64(key string, defaultval int64) int64 {
+	v, err := c.Int64(key)
+	if err != nil {
+		return defaultval
+	}
+	return v
+
+}
+
+// Float returns the float value for a given key.
+func (c *ConfigContainer) Float(key string) (float64, error) {
+	return strconv.ParseFloat(c.data[key].(string), 64)
+}
+
+// DefaultFloat returns the float64 value for a given key.
+// if err != nil return defaultval
+func (c *ConfigContainer) DefaultFloat(key string, defaultval float64) float64 {
+	v, err := c.Float(key)
+	if err != nil {
+		return defaultval
+	}
+	return v
+}
+
+// String returns the string value for a given key.
+func (c *ConfigContainer) String(key string) string {
+	if v, ok := c.data[key].(string); ok {
+		return v
+	}
+	return ""
+}
+
+// DefaultString returns the string value for a given key.
+// if err != nil return defaultval
+func (c *ConfigContainer) DefaultString(key string, defaultval string) string {
+	v := c.String(key)
+	if v == "" {
+		return defaultval
+	}
+	return v
+}
+
+// Strings returns the []string value for a given key.
+func (c *ConfigContainer) Strings(key string) []string {
+	v := c.String(key)
+	if v == "" {
+		return nil
+	}
+	return strings.Split(v, ";")
+}
+
+// DefaultStrings returns the []string value for a given key.
+// if err != nil return defaultval
+func (c *ConfigContainer) DefaultStrings(key string, defaultval []string) []string {
+	v := c.Strings(key)
+	if v == nil {
+		return defaultval
+	}
+	return v
+}
+
+// GetSection returns map for the given section
+func (c *ConfigContainer) GetSection(section string) (map[string]string, error) {
+	if v, ok := c.data[section].(map[string]interface{}); ok {
+		mapstr := make(map[string]string)
+		for k, val := range v {
+			mapstr[k] = config.ToString(val)
+		}
+		return mapstr, nil
+	}
+	return nil, fmt.Errorf("section '%s' not found", section)
+}
+
+// SaveConfigFile save the config into file
+func (c *ConfigContainer) SaveConfigFile(filename string) (err error) {
+	// Write configuration file by filename.
+	f, err := os.Create(filename)
+	if err != nil {
+		return err
+	}
+	defer f.Close()
+	b, err := xml.MarshalIndent(c.data, "  ", "    ")
+	if err != nil {
+		return err
+	}
+	_, err = f.Write(b)
+	return err
+}
+
+// Set writes a new value for key.
+func (c *ConfigContainer) Set(key, val string) error {
+	c.Lock()
+	defer c.Unlock()
+	c.data[key] = val
+	return nil
+}
+
+// DIY returns the raw value by a given key.
+func (c *ConfigContainer) DIY(key string) (v interface{}, err error) {
+	if v, ok := c.data[key]; ok {
+		return v, nil
+	}
+	return nil, errors.New("not exist key")
+}
+
+func init() {
+	config.Register("xml", &Config{})
+}

pkg/config/xml/xml_test.go

@@ -0,0 +1,125 @@
+// Copyright 2014 beego Author. All Rights Reserved.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//      http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package xml
+
+import (
+	"fmt"
+	"os"
+	"testing"
+
+	"github.com/astaxie/beego/config"
+)
+
+func TestXML(t *testing.T) {
+
+	var (
+		//xml parse should incluce in <config></config> tags
+		xmlcontext = `<?xml version="1.0" encoding="UTF-8"?>
+<config>
+<appname>beeapi</appname>
+<httpport>8080</httpport>
+<mysqlport>3600</mysqlport>
+<PI>3.1415976</PI>
+<runmode>dev</runmode>
+<autorender>false</autorender>
+<copyrequestbody>true</copyrequestbody>
+<path1>${GOPATH}</path1>
+<path2>${GOPATH||/home/go}</path2>
+<mysection>
+<id>1</id>
+<name>MySection</name>
+</mysection>
+</config>
+`
+		keyValue = map[string]interface{}{
+			"appname":         "beeapi",
+			"httpport":        8080,
+			"mysqlport":       int64(3600),
+			"PI":              3.1415976,
+			"runmode":         "dev",
+			"autorender":      false,
+			"copyrequestbody": true,
+			"path1":           os.Getenv("GOPATH"),
+			"path2":           os.Getenv("GOPATH"),
+			"error":           "",
+			"emptystrings":    []string{},
+		}
+	)
+
+	f, err := os.Create("testxml.conf")
+	if err != nil {
+		t.Fatal(err)
+	}
+	_, err = f.WriteString(xmlcontext)
+	if err != nil {
+		f.Close()
+		t.Fatal(err)
+	}
+	f.Close()
+	defer os.Remove("testxml.conf")
+
+	xmlconf, err := config.NewConfig("xml", "testxml.conf")
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	var xmlsection map[string]string
+	xmlsection, err = xmlconf.GetSection("mysection")
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	if len(xmlsection) == 0 {
+		t.Error("section should not be empty")
+	}
+
+	for k, v := range keyValue {
+
+		var (
+			value interface{}
+			err   error
+		)
+
+		switch v.(type) {
+		case int:
+			value, err = xmlconf.Int(k)
+		case int64:
+			value, err = xmlconf.Int64(k)
+		case float64:
+			value, err = xmlconf.Float(k)
+		case bool:
+			value, err = xmlconf.Bool(k)
+		case []string:
+			value = xmlconf.Strings(k)
+		case string:
+			value = xmlconf.String(k)
+		default:
+			value, err = xmlconf.DIY(k)
+		}
+		if err != nil {
+			t.Errorf("get key %q value fatal,%v err %s", k, v, err)
+		} else if fmt.Sprintf("%v", v) != fmt.Sprintf("%v", value) {
+			t.Errorf("get key %q value, want %v got %v .", k, v, value)
+		}
+
+	}
+
+	if err = xmlconf.Set("name", "astaxie"); err != nil {
+		t.Fatal(err)
+	}
+	if xmlconf.String("name") != "astaxie" {
+		t.Fatal("get name error")
+	}
+}

pkg/config/yaml/yaml.go

@@ -0,0 +1,316 @@
+// Copyright 2014 beego Author. All Rights Reserved.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//      http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+// Package yaml for config provider
+//
+// depend on github.com/beego/goyaml2
+//
+// go install github.com/beego/goyaml2
+//
+// Usage:
+//  import(
+//   _ "github.com/astaxie/beego/config/yaml"
+//     "github.com/astaxie/beego/config"
+//  )
+//
+//  cnf, err := config.NewConfig("yaml", "config.yaml")
+//
+//More docs http://beego.me/docs/module/config.md
+package yaml
+
+import (
+	"bytes"
+	"encoding/json"
+	"errors"
+	"fmt"
+	"io/ioutil"
+	"log"
+	"os"
+	"strings"
+	"sync"
+
+	"github.com/astaxie/beego/config"
+	"github.com/beego/goyaml2"
+)
+
+// Config is a yaml config parser and implements Config interface.
+type Config struct{}
+
+// Parse returns a ConfigContainer with parsed yaml config map.
+func (yaml *Config) Parse(filename string) (y config.Configer, err error) {
+	cnf, err := ReadYmlReader(filename)
+	if err != nil {
+		return
+	}
+	y = &ConfigContainer{
+		data: cnf,
+	}
+	return
+}
+
+// ParseData parse yaml data
+func (yaml *Config) ParseData(data []byte) (config.Configer, error) {
+	cnf, err := parseYML(data)
+	if err != nil {
+		return nil, err
+	}
+
+	return &ConfigContainer{
+		data: cnf,
+	}, nil
+}
+
+// ReadYmlReader Read yaml file to map.
+// if json like, use json package, unless goyaml2 package.
+func ReadYmlReader(path string) (cnf map[string]interface{}, err error) {
+	buf, err := ioutil.ReadFile(path)
+	if err != nil {
+		return
+	}
+
+	return parseYML(buf)
+}
+
+// parseYML parse yaml formatted []byte to map.
+func parseYML(buf []byte) (cnf map[string]interface{}, err error) {
+	if len(buf) < 3 {
+		return
+	}
+
+	if string(buf[0:1]) == "{" {
+		log.Println("Look like a Json, try json umarshal")
+		err = json.Unmarshal(buf, &cnf)
+		if err == nil {
+			log.Println("It is Json Map")
+			return
+		}
+	}
+
+	data, err := goyaml2.Read(bytes.NewReader(buf))
+	if err != nil {
+		log.Println("Goyaml2 ERR>", string(buf), err)
+		return
+	}
+
+	if data == nil {
+		log.Println("Goyaml2 output nil? Pls report bug\n" + string(buf))
+		return
+	}
+	cnf, ok := data.(map[string]interface{})
+	if !ok {
+		log.Println("Not a Map? >> ", string(buf), data)
+		cnf = nil
+	}
+	cnf = config.ExpandValueEnvForMap(cnf)
+	return
+}
+
+// ConfigContainer A Config represents the yaml configuration.
+type ConfigContainer struct {
+	data map[string]interface{}
+	sync.RWMutex
+}
+
+// Bool returns the boolean value for a given key.
+func (c *ConfigContainer) Bool(key string) (bool, error) {
+	v, err := c.getData(key)
+	if err != nil {
+		return false, err
+	}
+	return config.ParseBool(v)
+}
+
+// DefaultBool return the bool value if has no error
+// otherwise return the defaultval
+func (c *ConfigContainer) DefaultBool(key string, defaultval bool) bool {
+	v, err := c.Bool(key)
+	if err != nil {
+		return defaultval
+	}
+	return v
+}
+
+// Int returns the integer value for a given key.
+func (c *ConfigContainer) Int(key string) (int, error) {
+	if v, err := c.getData(key); err != nil {
+		return 0, err
+	} else if vv, ok := v.(int); ok {
+		return vv, nil
+	} else if vv, ok := v.(int64); ok {
+		return int(vv), nil
+	}
+	return 0, errors.New("not int value")
+}
+
+// DefaultInt returns the integer value for a given key.
+// if err != nil return defaultval
+func (c *ConfigContainer) DefaultInt(key string, defaultval int) int {
+	v, err := c.Int(key)
+	if err != nil {
+		return defaultval
+	}
+	return v
+}
+
+// Int64 returns the int64 value for a given key.
+func (c *ConfigContainer) Int64(key string) (int64, error) {
+	if v, err := c.getData(key); err != nil {
+		return 0, err
+	} else if vv, ok := v.(int64); ok {
+		return vv, nil
+	}
+	return 0, errors.New("not bool value")
+}
+
+// DefaultInt64 returns the int64 value for a given key.
+// if err != nil return defaultval
+func (c *ConfigContainer) DefaultInt64(key string, defaultval int64) int64 {
+	v, err := c.Int64(key)
+	if err != nil {
+		return defaultval
+	}
+	return v
+}
+
+// Float returns the float value for a given key.
+func (c *ConfigContainer) Float(key string) (float64, error) {
+	if v, err := c.getData(key); err != nil {
+		return 0.0, err
+	} else if vv, ok := v.(float64); ok {
+		return vv, nil
+	} else if vv, ok := v.(int); ok {
+		return float64(vv), nil
+	} else if vv, ok := v.(int64); ok {
+		return float64(vv), nil
+	}
+	return 0.0, errors.New("not float64 value")
+}
+
+// DefaultFloat returns the float64 value for a given key.
+// if err != nil return defaultval
+func (c *ConfigContainer) DefaultFloat(key string, defaultval float64) float64 {
+	v, err := c.Float(key)
+	if err != nil {
+		return defaultval
+	}
+	return v
+}
+
+// String returns the string value for a given key.
+func (c *ConfigContainer) String(key string) string {
+	if v, err := c.getData(key); err == nil {
+		if vv, ok := v.(string); ok {
+			return vv
+		}
+	}
+	return ""
+}
+
+// DefaultString returns the string value for a given key.
+// if err != nil return defaultval
+func (c *ConfigContainer) DefaultString(key string, defaultval string) string {
+	v := c.String(key)
+	if v == "" {
+		return defaultval
+	}
+	return v
+}
+
+// Strings returns the []string value for a given key.
+func (c *ConfigContainer) Strings(key string) []string {
+	v := c.String(key)
+	if v == "" {
+		return nil
+	}
+	return strings.Split(v, ";")
+}
+
+// DefaultStrings returns the []string value for a given key.
+// if err != nil return defaultval
+func (c *ConfigContainer) DefaultStrings(key string, defaultval []string) []string {
+	v := c.Strings(key)
+	if v == nil {
+		return defaultval
+	}
+	return v
+}
+
+// GetSection returns map for the given section
+func (c *ConfigContainer) GetSection(section string) (map[string]string, error) {
+
+	if v, ok := c.data[section]; ok {
+		return v.(map[string]string), nil
+	}
+	return nil, errors.New("not exist section")
+}
+
+// SaveConfigFile save the config into file
+func (c *ConfigContainer) SaveConfigFile(filename string) (err error) {
+	// Write configuration file by filename.
+	f, err := os.Create(filename)
+	if err != nil {
+		return err
+	}
+	defer f.Close()
+	err = goyaml2.Write(f, c.data)
+	return err
+}
+
+// Set writes a new value for key.
+func (c *ConfigContainer) Set(key, val string) error {
+	c.Lock()
+	defer c.Unlock()
+	c.data[key] = val
+	return nil
+}
+
+// DIY returns the raw value by a given key.
+func (c *ConfigContainer) DIY(key string) (v interface{}, err error) {
+	return c.getData(key)
+}
+
+func (c *ConfigContainer) getData(key string) (interface{}, error) {
+
+	if len(key) == 0 {
+		return nil, errors.New("key is empty")
+	}
+	c.RLock()
+	defer c.RUnlock()
+
+	keys := strings.Split(key, ".")
+	tmpData := c.data
+	for idx, k := range keys {
+		if v, ok := tmpData[k]; ok {
+			switch v.(type) {
+			case map[string]interface{}:
+				{
+					tmpData = v.(map[string]interface{})
+					if idx == len(keys) - 1 {
+						return tmpData, nil
+					}
+				}
+			default:
+				{
+					return v, nil
+				}
+
+			}
+		}
+	}
+	return nil, fmt.Errorf("not exist key %q", key)
+}
+
+func init() {
+	config.Register("yaml", &Config{})
+}

pkg/config/yaml/yaml_test.go

@@ -0,0 +1,115 @@
+// Copyright 2014 beego Author. All Rights Reserved.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//      http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package yaml
+
+import (
+	"fmt"
+	"os"
+	"testing"
+
+	"github.com/astaxie/beego/config"
+)
+
+func TestYaml(t *testing.T) {
+
+	var (
+		yamlcontext = `
+"appname": beeapi
+"httpport": 8080
+"mysqlport": 3600
+"PI": 3.1415976
+"runmode": dev
+"autorender": false
+"copyrequestbody": true
+"PATH": GOPATH
+"path1": ${GOPATH}
+"path2": ${GOPATH||/home/go}
+"empty": "" 
+`
+
+		keyValue = map[string]interface{}{
+			"appname":         "beeapi",
+			"httpport":        8080,
+			"mysqlport":       int64(3600),
+			"PI":              3.1415976,
+			"runmode":         "dev",
+			"autorender":      false,
+			"copyrequestbody": true,
+			"PATH":            "GOPATH",
+			"path1":           os.Getenv("GOPATH"),
+			"path2":           os.Getenv("GOPATH"),
+			"error":           "",
+			"emptystrings":    []string{},
+		}
+	)
+	f, err := os.Create("testyaml.conf")
+	if err != nil {
+		t.Fatal(err)
+	}
+	_, err = f.WriteString(yamlcontext)
+	if err != nil {
+		f.Close()
+		t.Fatal(err)
+	}
+	f.Close()
+	defer os.Remove("testyaml.conf")
+	yamlconf, err := config.NewConfig("yaml", "testyaml.conf")
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	if yamlconf.String("appname") != "beeapi" {
+		t.Fatal("appname not equal to beeapi")
+	}
+
+	for k, v := range keyValue {
+
+		var (
+			value interface{}
+			err   error
+		)
+
+		switch v.(type) {
+		case int:
+			value, err = yamlconf.Int(k)
+		case int64:
+			value, err = yamlconf.Int64(k)
+		case float64:
+			value, err = yamlconf.Float(k)
+		case bool:
+			value, err = yamlconf.Bool(k)
+		case []string:
+			value = yamlconf.Strings(k)
+		case string:
+			value = yamlconf.String(k)
+		default:
+			value, err = yamlconf.DIY(k)
+		}
+		if err != nil {
+			t.Errorf("get key %q value fatal,%v err %s", k, v, err)
+		} else if fmt.Sprintf("%v", v) != fmt.Sprintf("%v", value) {
+			t.Errorf("get key %q value, want %v got %v .", k, v, value)
+		}
+
+	}
+
+	if err = yamlconf.Set("name", "astaxie"); err != nil {
+		t.Fatal(err)
+	}
+	if yamlconf.String("name") != "astaxie" {
+		t.Fatal("get name error")
+	}
+
+}

pkg/config_test.go

@@ -0,0 +1,146 @@
+// Copyright 2014 beego Author. All Rights Reserved.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//      http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package beego
+
+import (
+	"encoding/json"
+	"reflect"
+	"testing"
+
+	"github.com/astaxie/beego/config"
+)
+
+func TestDefaults(t *testing.T) {
+	if BConfig.WebConfig.FlashName != "BEEGO_FLASH" {
+		t.Errorf("FlashName was not set to default.")
+	}
+
+	if BConfig.WebConfig.FlashSeparator != "BEEGOFLASH" {
+		t.Errorf("FlashName was not set to default.")
+	}
+}
+
+func TestAssignConfig_01(t *testing.T) {
+	_BConfig := &Config{}
+	_BConfig.AppName = "beego_test"
+	jcf := &config.JSONConfig{}
+	ac, _ := jcf.ParseData([]byte(`{"AppName":"beego_json"}`))
+	assignSingleConfig(_BConfig, ac)
+	if _BConfig.AppName != "beego_json" {
+		t.Log(_BConfig)
+		t.FailNow()
+	}
+}
+
+func TestAssignConfig_02(t *testing.T) {
+	_BConfig := &Config{}
+	bs, _ := json.Marshal(newBConfig())
+
+	jsonMap := M{}
+	json.Unmarshal(bs, &jsonMap)
+
+	configMap := M{}
+	for k, v := range jsonMap {
+		if reflect.TypeOf(v).Kind() == reflect.Map {
+			for k1, v1 := range v.(M) {
+				if reflect.TypeOf(v1).Kind() == reflect.Map {
+					for k2, v2 := range v1.(M) {
+						configMap[k2] = v2
+					}
+				} else {
+					configMap[k1] = v1
+				}
+			}
+		} else {
+			configMap[k] = v
+		}
+	}
+	configMap["MaxMemory"] = 1024
+	configMap["Graceful"] = true
+	configMap["XSRFExpire"] = 32
+	configMap["SessionProviderConfig"] = "file"
+	configMap["FileLineNum"] = true
+
+	jcf := &config.JSONConfig{}
+	bs, _ = json.Marshal(configMap)
+	ac, _ := jcf.ParseData(bs)
+
+	for _, i := range []interface{}{_BConfig, &_BConfig.Listen, &_BConfig.WebConfig, &_BConfig.Log, &_BConfig.WebConfig.Session} {
+		assignSingleConfig(i, ac)
+	}
+
+	if _BConfig.MaxMemory != 1024 {
+		t.Log(_BConfig.MaxMemory)
+		t.FailNow()
+	}
+
+	if !_BConfig.Listen.Graceful {
+		t.Log(_BConfig.Listen.Graceful)
+		t.FailNow()
+	}
+
+	if _BConfig.WebConfig.XSRFExpire != 32 {
+		t.Log(_BConfig.WebConfig.XSRFExpire)
+		t.FailNow()
+	}
+
+	if _BConfig.WebConfig.Session.SessionProviderConfig != "file" {
+		t.Log(_BConfig.WebConfig.Session.SessionProviderConfig)
+		t.FailNow()
+	}
+
+	if !_BConfig.Log.FileLineNum {
+		t.Log(_BConfig.Log.FileLineNum)
+		t.FailNow()
+	}
+
+}
+
+func TestAssignConfig_03(t *testing.T) {
+	jcf := &config.JSONConfig{}
+	ac, _ := jcf.ParseData([]byte(`{"AppName":"beego"}`))
+	ac.Set("AppName", "test_app")
+	ac.Set("RunMode", "online")
+	ac.Set("StaticDir", "download:down download2:down2")
+	ac.Set("StaticExtensionsToGzip", ".css,.js,.html,.jpg,.png")
+	ac.Set("StaticCacheFileSize", "87456")
+	ac.Set("StaticCacheFileNum", "1254")
+	assignConfig(ac)
+
+	t.Logf("%#v", BConfig)
+
+	if BConfig.AppName != "test_app" {
+		t.FailNow()
+	}
+
+	if BConfig.RunMode != "online" {
+		t.FailNow()
+	}
+	if BConfig.WebConfig.StaticDir["/download"] != "down" {
+		t.FailNow()
+	}
+	if BConfig.WebConfig.StaticDir["/download2"] != "down2" {
+		t.FailNow()
+	}
+	if BConfig.WebConfig.StaticCacheFileSize != 87456 {
+		t.FailNow()
+	}
+	if BConfig.WebConfig.StaticCacheFileNum != 1254 {
+		t.FailNow()
+	}
+	if len(BConfig.WebConfig.StaticExtensionsToGzip) != 5 {
+		t.FailNow()
+	}
+}

pkg/context/acceptencoder.go

@@ -0,0 +1,232 @@
+// Copyright 2015 beego Author. All Rights Reserved.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//      http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package context
+
+import (
+	"bytes"
+	"compress/flate"
+	"compress/gzip"
+	"compress/zlib"
+	"io"
+	"net/http"
+	"os"
+	"strconv"
+	"strings"
+	"sync"
+)
+
+var (
+	//Default size==20B same as nginx
+	defaultGzipMinLength = 20
+	//Content will only be compressed if content length is either unknown or greater than gzipMinLength.
+	gzipMinLength = defaultGzipMinLength
+	//The compression level used for deflate compression. (0-9).
+	gzipCompressLevel int
+	//List of HTTP methods to compress. If not set, only GET requests are compressed.
+	includedMethods map[string]bool
+	getMethodOnly   bool
+)
+
+// InitGzip init the gzipcompress
+func InitGzip(minLength, compressLevel int, methods []string) {
+	if minLength >= 0 {
+		gzipMinLength = minLength
+	}
+	gzipCompressLevel = compressLevel
+	if gzipCompressLevel < flate.NoCompression || gzipCompressLevel > flate.BestCompression {
+		gzipCompressLevel = flate.BestSpeed
+	}
+	getMethodOnly = (len(methods) == 0) || (len(methods) == 1 && strings.ToUpper(methods[0]) == "GET")
+	includedMethods = make(map[string]bool, len(methods))
+	for _, v := range methods {
+		includedMethods[strings.ToUpper(v)] = true
+	}
+}
+
+type resetWriter interface {
+	io.Writer
+	Reset(w io.Writer)
+}
+
+type nopResetWriter struct {
+	io.Writer
+}
+
+func (n nopResetWriter) Reset(w io.Writer) {
+	//do nothing
+}
+
+type acceptEncoder struct {
+	name                    string
+	levelEncode             func(int) resetWriter
+	customCompressLevelPool *sync.Pool
+	bestCompressionPool     *sync.Pool
+}
+
+func (ac acceptEncoder) encode(wr io.Writer, level int) resetWriter {
+	if ac.customCompressLevelPool == nil || ac.bestCompressionPool == nil {
+		return nopResetWriter{wr}
+	}
+	var rwr resetWriter
+	switch level {
+	case flate.BestSpeed:
+		rwr = ac.customCompressLevelPool.Get().(resetWriter)
+	case flate.BestCompression:
+		rwr = ac.bestCompressionPool.Get().(resetWriter)
+	default:
+		rwr = ac.levelEncode(level)
+	}
+	rwr.Reset(wr)
+	return rwr
+}
+
+func (ac acceptEncoder) put(wr resetWriter, level int) {
+	if ac.customCompressLevelPool == nil || ac.bestCompressionPool == nil {
+		return
+	}
+	wr.Reset(nil)
+
+	//notice
+	//compressionLevel==BestCompression DOES NOT MATTER
+	//sync.Pool will not memory leak
+
+	switch level {
+	case gzipCompressLevel:
+		ac.customCompressLevelPool.Put(wr)
+	case flate.BestCompression:
+		ac.bestCompressionPool.Put(wr)
+	}
+}
+
+var (
+	noneCompressEncoder = acceptEncoder{"", nil, nil, nil}
+	gzipCompressEncoder = acceptEncoder{
+		name:                    "gzip",
+		levelEncode:             func(level int) resetWriter { wr, _ := gzip.NewWriterLevel(nil, level); return wr },
+		customCompressLevelPool: &sync.Pool{New: func() interface{} { wr, _ := gzip.NewWriterLevel(nil, gzipCompressLevel); return wr }},
+		bestCompressionPool:     &sync.Pool{New: func() interface{} { wr, _ := gzip.NewWriterLevel(nil, flate.BestCompression); return wr }},
+	}
+
+	//according to the sec :http://tools.ietf.org/html/rfc2616#section-3.5 ,the deflate compress in http is zlib indeed
+	//deflate
+	//The "zlib" format defined in RFC 1950 [31] in combination with
+	//the "deflate" compression mechanism described in RFC 1951 [29].
+	deflateCompressEncoder = acceptEncoder{
+		name:                    "deflate",
+		levelEncode:             func(level int) resetWriter { wr, _ := zlib.NewWriterLevel(nil, level); return wr },
+		customCompressLevelPool: &sync.Pool{New: func() interface{} { wr, _ := zlib.NewWriterLevel(nil, gzipCompressLevel); return wr }},
+		bestCompressionPool:     &sync.Pool{New: func() interface{} { wr, _ := zlib.NewWriterLevel(nil, flate.BestCompression); return wr }},
+	}
+)
+
+var (
+	encoderMap = map[string]acceptEncoder{ // all the other compress methods will ignore
+		"gzip":     gzipCompressEncoder,
+		"deflate":  deflateCompressEncoder,
+		"*":        gzipCompressEncoder, // * means any compress will accept,we prefer gzip
+		"identity": noneCompressEncoder, // identity means none-compress
+	}
+)
+
+// WriteFile reads from file and writes to writer by the specific encoding(gzip/deflate)
+func WriteFile(encoding string, writer io.Writer, file *os.File) (bool, string, error) {
+	return writeLevel(encoding, writer, file, flate.BestCompression)
+}
+
+// WriteBody reads  writes content to writer by the specific encoding(gzip/deflate)
+func WriteBody(encoding string, writer io.Writer, content []byte) (bool, string, error) {
+	if encoding == "" || len(content) < gzipMinLength {
+		_, err := writer.Write(content)
+		return false, "", err
+	}
+	return writeLevel(encoding, writer, bytes.NewReader(content), gzipCompressLevel)
+}
+
+// writeLevel reads from reader,writes to writer by specific encoding and compress level
+// the compress level is defined by deflate package
+func writeLevel(encoding string, writer io.Writer, reader io.Reader, level int) (bool, string, error) {
+	var outputWriter resetWriter
+	var err error
+	var ce = noneCompressEncoder
+
+	if cf, ok := encoderMap[encoding]; ok {
+		ce = cf
+	}
+	encoding = ce.name
+	outputWriter = ce.encode(writer, level)
+	defer ce.put(outputWriter, level)
+
+	_, err = io.Copy(outputWriter, reader)
+	if err != nil {
+		return false, "", err
+	}
+
+	switch outputWriter.(type) {
+	case io.WriteCloser:
+		outputWriter.(io.WriteCloser).Close()
+	}
+	return encoding != "", encoding, nil
+}
+
+// ParseEncoding will extract the right encoding for response
+// the Accept-Encoding's sec is here:
+// http://www.w3.org/Protocols/rfc2616/rfc2616-sec14.html#sec14.3
+func ParseEncoding(r *http.Request) string {
+	if r == nil {
+		return ""
+	}
+	if (getMethodOnly && r.Method == "GET") || includedMethods[r.Method] {
+		return parseEncoding(r)
+	}
+	return ""
+}
+
+type q struct {
+	name  string
+	value float64
+}
+
+func parseEncoding(r *http.Request) string {
+	acceptEncoding := r.Header.Get("Accept-Encoding")
+	if acceptEncoding == "" {
+		return ""
+	}
+	var lastQ q
+	for _, v := range strings.Split(acceptEncoding, ",") {
+		v = strings.TrimSpace(v)
+		if v == "" {
+			continue
+		}
+		vs := strings.Split(v, ";")
+		var cf acceptEncoder
+		var ok bool
+		if cf, ok = encoderMap[vs[0]]; !ok {
+			continue
+		}
+		if len(vs) == 1 {
+			return cf.name
+		}
+		if len(vs) == 2 {
+			f, _ := strconv.ParseFloat(strings.Replace(vs[1], "q=", "", -1), 64)
+			if f == 0 {
+				continue
+			}
+			if f > lastQ.value {
+				lastQ = q{cf.name, f}
+			}
+		}
+	}
+	return lastQ.name
+}

pkg/context/acceptencoder_test.go

@@ -0,0 +1,59 @@
+// Copyright 2015 beego Author. All Rights Reserved.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//      http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package context
+
+import (
+	"net/http"
+	"testing"
+)
+
+func Test_ExtractEncoding(t *testing.T) {
+	if parseEncoding(&http.Request{Header: map[string][]string{"Accept-Encoding": {"gzip,deflate"}}}) != "gzip" {
+		t.Fail()
+	}
+	if parseEncoding(&http.Request{Header: map[string][]string{"Accept-Encoding": {"deflate,gzip"}}}) != "deflate" {
+		t.Fail()
+	}
+	if parseEncoding(&http.Request{Header: map[string][]string{"Accept-Encoding": {"gzip;q=.5,deflate"}}}) != "deflate" {
+		t.Fail()
+	}
+	if parseEncoding(&http.Request{Header: map[string][]string{"Accept-Encoding": {"gzip;q=.5,deflate;q=0.3"}}}) != "gzip" {
+		t.Fail()
+	}
+	if parseEncoding(&http.Request{Header: map[string][]string{"Accept-Encoding": {"gzip;q=0,deflate"}}}) != "deflate" {
+		t.Fail()
+	}
+	if parseEncoding(&http.Request{Header: map[string][]string{"Accept-Encoding": {"deflate;q=0.5,gzip;q=0.5,identity"}}}) != "" {
+		t.Fail()
+	}
+	if parseEncoding(&http.Request{Header: map[string][]string{"Accept-Encoding": {"*"}}}) != "gzip" {
+		t.Fail()
+	}
+	if parseEncoding(&http.Request{Header: map[string][]string{"Accept-Encoding": {"x,gzip,deflate"}}}) != "gzip" {
+		t.Fail()
+	}
+	if parseEncoding(&http.Request{Header: map[string][]string{"Accept-Encoding": {"gzip,x,deflate"}}}) != "gzip" {
+		t.Fail()
+	}
+	if parseEncoding(&http.Request{Header: map[string][]string{"Accept-Encoding": {"gzip;q=0.5,x,deflate"}}}) != "deflate" {
+		t.Fail()
+	}
+	if parseEncoding(&http.Request{Header: map[string][]string{"Accept-Encoding": {"x"}}}) != "" {
+		t.Fail()
+	}
+	if parseEncoding(&http.Request{Header: map[string][]string{"Accept-Encoding": {"gzip;q=0.5,x;q=0.8"}}}) != "gzip" {
+		t.Fail()
+	}
+}

pkg/context/context.go

@@ -0,0 +1,263 @@
+// Copyright 2014 beego Author. All Rights Reserved.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//      http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+// Package context provide the context utils
+// Usage:
+//
+//	import "github.com/astaxie/beego/context"
+//
+//	ctx := context.Context{Request:req,ResponseWriter:rw}
+//
+//  more docs http://beego.me/docs/module/context.md
+package context
+
+import (
+	"bufio"
+	"crypto/hmac"
+	"crypto/sha256"
+	"encoding/base64"
+	"errors"
+	"fmt"
+	"net"
+	"net/http"
+	"strconv"
+	"strings"
+	"time"
+
+	"github.com/astaxie/beego/utils"
+)
+
+//commonly used mime-types
+const (
+	ApplicationJSON = "application/json"
+	ApplicationXML  = "application/xml"
+	ApplicationYAML = "application/x-yaml"
+	TextXML         = "text/xml"
+)
+
+// NewContext return the Context with Input and Output
+func NewContext() *Context {
+	return &Context{
+		Input:  NewInput(),
+		Output: NewOutput(),
+	}
+}
+
+// Context Http request context struct including BeegoInput, BeegoOutput, http.Request and http.ResponseWriter.
+// BeegoInput and BeegoOutput provides some api to operate request and response more easily.
+type Context struct {
+	Input          *BeegoInput
+	Output         *BeegoOutput
+	Request        *http.Request
+	ResponseWriter *Response
+	_xsrfToken     string
+}
+
+// Reset init Context, BeegoInput and BeegoOutput
+func (ctx *Context) Reset(rw http.ResponseWriter, r *http.Request) {
+	ctx.Request = r
+	if ctx.ResponseWriter == nil {
+		ctx.ResponseWriter = &Response{}
+	}
+	ctx.ResponseWriter.reset(rw)
+	ctx.Input.Reset(ctx)
+	ctx.Output.Reset(ctx)
+	ctx._xsrfToken = ""
+}
+
+// Redirect does redirection to localurl with http header status code.
+func (ctx *Context) Redirect(status int, localurl string) {
+	http.Redirect(ctx.ResponseWriter, ctx.Request, localurl, status)
+}
+
+// Abort stops this request.
+// if beego.ErrorMaps exists, panic body.
+func (ctx *Context) Abort(status int, body string) {
+	ctx.Output.SetStatus(status)
+	panic(body)
+}
+
+// WriteString Write string to response body.
+// it sends response body.
+func (ctx *Context) WriteString(content string) {
+	ctx.ResponseWriter.Write([]byte(content))
+}
+
+// GetCookie Get cookie from request by a given key.
+// It's alias of BeegoInput.Cookie.
+func (ctx *Context) GetCookie(key string) string {
+	return ctx.Input.Cookie(key)
+}
+
+// SetCookie Set cookie for response.
+// It's alias of BeegoOutput.Cookie.
+func (ctx *Context) SetCookie(name string, value string, others ...interface{}) {
+	ctx.Output.Cookie(name, value, others...)
+}
+
+// GetSecureCookie Get secure cookie from request by a given key.
+func (ctx *Context) GetSecureCookie(Secret, key string) (string, bool) {
+	val := ctx.Input.Cookie(key)
+	if val == "" {
+		return "", false
+	}
+
+	parts := strings.SplitN(val, "|", 3)
+
+	if len(parts) != 3 {
+		return "", false
+	}
+
+	vs := parts[0]
+	timestamp := parts[1]
+	sig := parts[2]
+
+	h := hmac.New(sha256.New, []byte(Secret))
+	fmt.Fprintf(h, "%s%s", vs, timestamp)
+
+	if fmt.Sprintf("%02x", h.Sum(nil)) != sig {
+		return "", false
+	}
+	res, _ := base64.URLEncoding.DecodeString(vs)
+	return string(res), true
+}
+
+// SetSecureCookie Set Secure cookie for response.
+func (ctx *Context) SetSecureCookie(Secret, name, value string, others ...interface{}) {
+	vs := base64.URLEncoding.EncodeToString([]byte(value))
+	timestamp := strconv.FormatInt(time.Now().UnixNano(), 10)
+	h := hmac.New(sha256.New, []byte(Secret))
+	fmt.Fprintf(h, "%s%s", vs, timestamp)
+	sig := fmt.Sprintf("%02x", h.Sum(nil))
+	cookie := strings.Join([]string{vs, timestamp, sig}, "|")
+	ctx.Output.Cookie(name, cookie, others...)
+}
+
+// XSRFToken creates a xsrf token string and returns.
+func (ctx *Context) XSRFToken(key string, expire int64) string {
+	if ctx._xsrfToken == "" {
+		token, ok := ctx.GetSecureCookie(key, "_xsrf")
+		if !ok {
+			token = string(utils.RandomCreateBytes(32))
+			ctx.SetSecureCookie(key, "_xsrf", token, expire)
+		}
+		ctx._xsrfToken = token
+	}
+	return ctx._xsrfToken
+}
+
+// CheckXSRFCookie checks xsrf token in this request is valid or not.
+// the token can provided in request header "X-Xsrftoken" and "X-CsrfToken"
+// or in form field value named as "_xsrf".
+func (ctx *Context) CheckXSRFCookie() bool {
+	token := ctx.Input.Query("_xsrf")
+	if token == "" {
+		token = ctx.Request.Header.Get("X-Xsrftoken")
+	}
+	if token == "" {
+		token = ctx.Request.Header.Get("X-Csrftoken")
+	}
+	if token == "" {
+		ctx.Abort(422, "422")
+		return false
+	}
+	if ctx._xsrfToken != token {
+		ctx.Abort(417, "417")
+		return false
+	}
+	return true
+}
+
+// RenderMethodResult renders the return value of a controller method to the output
+func (ctx *Context) RenderMethodResult(result interface{}) {
+	if result != nil {
+		renderer, ok := result.(Renderer)
+		if !ok {
+			err, ok := result.(error)
+			if ok {
+				renderer = errorRenderer(err)
+			} else {
+				renderer = jsonRenderer(result)
+			}
+		}
+		renderer.Render(ctx)
+	}
+}
+
+//Response is a wrapper for the http.ResponseWriter
+//started set to true if response was written to then don't execute other handler
+type Response struct {
+	http.ResponseWriter
+	Started bool
+	Status  int
+	Elapsed time.Duration
+}
+
+func (r *Response) reset(rw http.ResponseWriter) {
+	r.ResponseWriter = rw
+	r.Status = 0
+	r.Started = false
+}
+
+// Write writes the data to the connection as part of an HTTP reply,
+// and sets `started` to true.
+// started means the response has sent out.
+func (r *Response) Write(p []byte) (int, error) {
+	r.Started = true
+	return r.ResponseWriter.Write(p)
+}
+
+// WriteHeader sends an HTTP response header with status code,
+// and sets `started` to true.
+func (r *Response) WriteHeader(code int) {
+	if r.Status > 0 {
+		//prevent multiple response.WriteHeader calls
+		return
+	}
+	r.Status = code
+	r.Started = true
+	r.ResponseWriter.WriteHeader(code)
+}
+
+// Hijack hijacker for http
+func (r *Response) Hijack() (net.Conn, *bufio.ReadWriter, error) {
+	hj, ok := r.ResponseWriter.(http.Hijacker)
+	if !ok {
+		return nil, nil, errors.New("webserver doesn't support hijacking")
+	}
+	return hj.Hijack()
+}
+
+// Flush http.Flusher
+func (r *Response) Flush() {
+	if f, ok := r.ResponseWriter.(http.Flusher); ok {
+		f.Flush()
+	}
+}
+
+// CloseNotify http.CloseNotifier
+func (r *Response) CloseNotify() <-chan bool {
+	if cn, ok := r.ResponseWriter.(http.CloseNotifier); ok {
+		return cn.CloseNotify()
+	}
+	return nil
+}
+
+// Pusher http.Pusher
+func (r *Response) Pusher() (pusher http.Pusher) {
+	if pusher, ok := r.ResponseWriter.(http.Pusher); ok {
+		return pusher
+	}
+	return nil
+}

pkg/context/context_test.go

@@ -0,0 +1,47 @@
+// Copyright 2016 beego Author. All Rights Reserved.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//      http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package context
+
+import (
+	"net/http"
+	"net/http/httptest"
+	"testing"
+)
+
+func TestXsrfReset_01(t *testing.T) {
+	r := &http.Request{}
+	c := NewContext()
+	c.Request = r
+	c.ResponseWriter = &Response{}
+	c.ResponseWriter.reset(httptest.NewRecorder())
+	c.Output.Reset(c)
+	c.Input.Reset(c)
+	c.XSRFToken("key", 16)
+	if c._xsrfToken == "" {
+		t.FailNow()
+	}
+	token := c._xsrfToken
+	c.Reset(&Response{ResponseWriter: httptest.NewRecorder()}, r)
+	if c._xsrfToken != "" {
+		t.FailNow()
+	}
+	c.XSRFToken("key", 16)
+	if c._xsrfToken == "" {
+		t.FailNow()
+	}
+	if token == c._xsrfToken {
+		t.FailNow()
+	}
+}

pkg/context/input.go

@@ -0,0 +1,689 @@
+// Copyright 2014 beego Author. All Rights Reserved.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//      http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package context
+
+import (
+	"bytes"
+	"compress/gzip"
+	"errors"
+	"io"
+	"io/ioutil"
+	"net"
+	"net/http"
+	"net/url"
+	"reflect"
+	"regexp"
+	"strconv"
+	"strings"
+	"sync"
+
+	"github.com/astaxie/beego/session"
+)
+
+// Regexes for checking the accept headers
+// TODO make sure these are correct
+var (
+	acceptsHTMLRegex = regexp.MustCompile(`(text/html|application/xhtml\+xml)(?:,|$)`)
+	acceptsXMLRegex  = regexp.MustCompile(`(application/xml|text/xml)(?:,|$)`)
+	acceptsJSONRegex = regexp.MustCompile(`(application/json)(?:,|$)`)
+	acceptsYAMLRegex = regexp.MustCompile(`(application/x-yaml)(?:,|$)`)
+	maxParam         = 50
+)
+
+// BeegoInput operates the http request header, data, cookie and body.
+// it also contains router params and current session.
+type BeegoInput struct {
+	Context       *Context
+	CruSession    session.Store
+	pnames        []string
+	pvalues       []string
+	data          map[interface{}]interface{} // store some values in this context when calling context in filter or controller.
+	dataLock      sync.RWMutex
+	RequestBody   []byte
+	RunMethod     string
+	RunController reflect.Type
+}
+
+// NewInput return BeegoInput generated by Context.
+func NewInput() *BeegoInput {
+	return &BeegoInput{
+		pnames:  make([]string, 0, maxParam),
+		pvalues: make([]string, 0, maxParam),
+		data:    make(map[interface{}]interface{}),
+	}
+}
+
+// Reset init the BeegoInput
+func (input *BeegoInput) Reset(ctx *Context) {
+	input.Context = ctx
+	input.CruSession = nil
+	input.pnames = input.pnames[:0]
+	input.pvalues = input.pvalues[:0]
+	input.dataLock.Lock()
+	input.data = nil
+	input.dataLock.Unlock()
+	input.RequestBody = []byte{}
+}
+
+// Protocol returns request protocol name, such as HTTP/1.1 .
+func (input *BeegoInput) Protocol() string {
+	return input.Context.Request.Proto
+}
+
+// URI returns full request url with query string, fragment.
+func (input *BeegoInput) URI() string {
+	return input.Context.Request.RequestURI
+}
+
+// URL returns request url path (without query string, fragment).
+func (input *BeegoInput) URL() string {
+	return input.Context.Request.URL.EscapedPath()
+}
+
+// Site returns base site url as scheme://domain type.
+func (input *BeegoInput) Site() string {
+	return input.Scheme() + "://" + input.Domain()
+}
+
+// Scheme returns request scheme as "http" or "https".
+func (input *BeegoInput) Scheme() string {
+	if scheme := input.Header("X-Forwarded-Proto"); scheme != "" {
+		return scheme
+	}
+	if input.Context.Request.URL.Scheme != "" {
+		return input.Context.Request.URL.Scheme
+	}
+	if input.Context.Request.TLS == nil {
+		return "http"
+	}
+	return "https"
+}
+
+// Domain returns host name.
+// Alias of Host method.
+func (input *BeegoInput) Domain() string {
+	return input.Host()
+}
+
+// Host returns host name.
+// if no host info in request, return localhost.
+func (input *BeegoInput) Host() string {
+	if input.Context.Request.Host != "" {
+		if hostPart, _, err := net.SplitHostPort(input.Context.Request.Host); err == nil {
+			return hostPart
+		}
+		return input.Context.Request.Host
+	}
+	return "localhost"
+}
+
+// Method returns http request method.
+func (input *BeegoInput) Method() string {
+	return input.Context.Request.Method
+}
+
+// Is returns boolean of this request is on given method, such as Is("POST").
+func (input *BeegoInput) Is(method string) bool {
+	return input.Method() == method
+}
+
+// IsGet Is this a GET method request?
+func (input *BeegoInput) IsGet() bool {
+	return input.Is("GET")
+}
+
+// IsPost Is this a POST method request?
+func (input *BeegoInput) IsPost() bool {
+	return input.Is("POST")
+}
+
+// IsHead Is this a Head method request?
+func (input *BeegoInput) IsHead() bool {
+	return input.Is("HEAD")
+}
+
+// IsOptions Is this a OPTIONS method request?
+func (input *BeegoInput) IsOptions() bool {
+	return input.Is("OPTIONS")
+}
+
+// IsPut Is this a PUT method request?
+func (input *BeegoInput) IsPut() bool {
+	return input.Is("PUT")
+}
+
+// IsDelete Is this a DELETE method request?
+func (input *BeegoInput) IsDelete() bool {
+	return input.Is("DELETE")
+}
+
+// IsPatch Is this a PATCH method request?
+func (input *BeegoInput) IsPatch() bool {
+	return input.Is("PATCH")
+}
+
+// IsAjax returns boolean of this request is generated by ajax.
+func (input *BeegoInput) IsAjax() bool {
+	return input.Header("X-Requested-With") == "XMLHttpRequest"
+}
+
+// IsSecure returns boolean of this request is in https.
+func (input *BeegoInput) IsSecure() bool {
+	return input.Scheme() == "https"
+}
+
+// IsWebsocket returns boolean of this request is in webSocket.
+func (input *BeegoInput) IsWebsocket() bool {
+	return input.Header("Upgrade") == "websocket"
+}
+
+// IsUpload returns boolean of whether file uploads in this request or not..
+func (input *BeegoInput) IsUpload() bool {
+	return strings.Contains(input.Header("Content-Type"), "multipart/form-data")
+}
+
+// AcceptsHTML Checks if request accepts html response
+func (input *BeegoInput) AcceptsHTML() bool {
+	return acceptsHTMLRegex.MatchString(input.Header("Accept"))
+}
+
+// AcceptsXML Checks if request accepts xml response
+func (input *BeegoInput) AcceptsXML() bool {
+	return acceptsXMLRegex.MatchString(input.Header("Accept"))
+}
+
+// AcceptsJSON Checks if request accepts json response
+func (input *BeegoInput) AcceptsJSON() bool {
+	return acceptsJSONRegex.MatchString(input.Header("Accept"))
+}
+
+// AcceptsYAML Checks if request accepts json response
+func (input *BeegoInput) AcceptsYAML() bool {
+	return acceptsYAMLRegex.MatchString(input.Header("Accept"))
+}
+
+// IP returns request client ip.
+// if in proxy, return first proxy id.
+// if error, return RemoteAddr.
+func (input *BeegoInput) IP() string {
+	ips := input.Proxy()
+	if len(ips) > 0 && ips[0] != "" {
+		rip, _, err := net.SplitHostPort(ips[0])
+		if err != nil {
+			rip = ips[0]
+		}
+		return rip
+	}
+	if ip, _, err := net.SplitHostPort(input.Context.Request.RemoteAddr); err == nil {
+		return ip
+	}
+	return input.Context.Request.RemoteAddr
+}
+
+// Proxy returns proxy client ips slice.
+func (input *BeegoInput) Proxy() []string {
+	if ips := input.Header("X-Forwarded-For"); ips != "" {
+		return strings.Split(ips, ",")
+	}
+	return []string{}
+}
+
+// Referer returns http referer header.
+func (input *BeegoInput) Referer() string {
+	return input.Header("Referer")
+}
+
+// Refer returns http referer header.
+func (input *BeegoInput) Refer() string {
+	return input.Referer()
+}
+
+// SubDomains returns sub domain string.
+// if aa.bb.domain.com, returns aa.bb .
+func (input *BeegoInput) SubDomains() string {
+	parts := strings.Split(input.Host(), ".")
+	if len(parts) >= 3 {
+		return strings.Join(parts[:len(parts)-2], ".")
+	}
+	return ""
+}
+
+// Port returns request client port.
+// when error or empty, return 80.
+func (input *BeegoInput) Port() int {
+	if _, portPart, err := net.SplitHostPort(input.Context.Request.Host); err == nil {
+		port, _ := strconv.Atoi(portPart)
+		return port
+	}
+	return 80
+}
+
+// UserAgent returns request client user agent string.
+func (input *BeegoInput) UserAgent() string {
+	return input.Header("User-Agent")
+}
+
+// ParamsLen return the length of the params
+func (input *BeegoInput) ParamsLen() int {
+	return len(input.pnames)
+}
+
+// Param returns router param by a given key.
+func (input *BeegoInput) Param(key string) string {
+	for i, v := range input.pnames {
+		if v == key && i <= len(input.pvalues) {
+			// we cannot use url.PathEscape(input.pvalues[i])
+			// for example, if the value is /a/b
+			// after url.PathEscape(input.pvalues[i]), the value is %2Fa%2Fb
+			// However, the value is used in ControllerRegister.ServeHTTP
+			// and split by "/", so function crash...
+			return input.pvalues[i]
+		}
+	}
+	return ""
+}
+
+// Params returns the map[key]value.
+func (input *BeegoInput) Params() map[string]string {
+	m := make(map[string]string)
+	for i, v := range input.pnames {
+		if i <= len(input.pvalues) {
+			m[v] = input.pvalues[i]
+		}
+	}
+	return m
+}
+
+// SetParam will set the param with key and value
+func (input *BeegoInput) SetParam(key, val string) {
+	// check if already exists
+	for i, v := range input.pnames {
+		if v == key && i <= len(input.pvalues) {
+			input.pvalues[i] = val
+			return
+		}
+	}
+	input.pvalues = append(input.pvalues, val)
+	input.pnames = append(input.pnames, key)
+}
+
+// ResetParams clears any of the input's Params
+// This function is used to clear parameters so they may be reset between filter
+// passes.
+func (input *BeegoInput) ResetParams() {
+	input.pnames = input.pnames[:0]
+	input.pvalues = input.pvalues[:0]
+}
+
+// Query returns input data item string by a given string.
+func (input *BeegoInput) Query(key string) string {
+	if val := input.Param(key); val != "" {
+		return val
+	}
+	if input.Context.Request.Form == nil {
+		input.dataLock.Lock()
+		if input.Context.Request.Form == nil {
+			input.Context.Request.ParseForm()
+		}
+		input.dataLock.Unlock()
+	}
+	input.dataLock.RLock()
+	defer input.dataLock.RUnlock()
+	return input.Context.Request.Form.Get(key)
+}
+
+// Header returns request header item string by a given string.
+// if non-existed, return empty string.
+func (input *BeegoInput) Header(key string) string {
+	return input.Context.Request.Header.Get(key)
+}
+
+// Cookie returns request cookie item string by a given key.
+// if non-existed, return empty string.
+func (input *BeegoInput) Cookie(key string) string {
+	ck, err := input.Context.Request.Cookie(key)
+	if err != nil {
+		return ""
+	}
+	return ck.Value
+}
+
+// Session returns current session item value by a given key.
+// if non-existed, return nil.
+func (input *BeegoInput) Session(key interface{}) interface{} {
+	return input.CruSession.Get(key)
+}
+
+// CopyBody returns the raw request body data as bytes.
+func (input *BeegoInput) CopyBody(MaxMemory int64) []byte {
+	if input.Context.Request.Body == nil {
+		return []byte{}
+	}
+
+	var requestbody []byte
+	safe := &io.LimitedReader{R: input.Context.Request.Body, N: MaxMemory}
+	if input.Header("Content-Encoding") == "gzip" {
+		reader, err := gzip.NewReader(safe)
+		if err != nil {
+			return nil
+		}
+		requestbody, _ = ioutil.ReadAll(reader)
+	} else {
+		requestbody, _ = ioutil.ReadAll(safe)
+	}
+
+	input.Context.Request.Body.Close()
+	bf := bytes.NewBuffer(requestbody)
+	input.Context.Request.Body = http.MaxBytesReader(input.Context.ResponseWriter, ioutil.NopCloser(bf), MaxMemory)
+	input.RequestBody = requestbody
+	return requestbody
+}
+
+// Data return the implicit data in the input
+func (input *BeegoInput) Data() map[interface{}]interface{} {
+	input.dataLock.Lock()
+	defer input.dataLock.Unlock()
+	if input.data == nil {
+		input.data = make(map[interface{}]interface{})
+	}
+	return input.data
+}
+
+// GetData returns the stored data in this context.
+func (input *BeegoInput) GetData(key interface{}) interface{} {
+	input.dataLock.Lock()
+	defer input.dataLock.Unlock()
+	if v, ok := input.data[key]; ok {
+		return v
+	}
+	return nil
+}
+
+// SetData stores data with given key in this context.
+// This data are only available in this context.
+func (input *BeegoInput) SetData(key, val interface{}) {
+	input.dataLock.Lock()
+	defer input.dataLock.Unlock()
+	if input.data == nil {
+		input.data = make(map[interface{}]interface{})
+	}
+	input.data[key] = val
+}
+
+// ParseFormOrMulitForm parseForm or parseMultiForm based on Content-type
+func (input *BeegoInput) ParseFormOrMulitForm(maxMemory int64) error {
+	// Parse the body depending on the content type.
+	if strings.Contains(input.Header("Content-Type"), "multipart/form-data") {
+		if err := input.Context.Request.ParseMultipartForm(maxMemory); err != nil {
+			return errors.New("Error parsing request body:" + err.Error())
+		}
+	} else if err := input.Context.Request.ParseForm(); err != nil {
+		return errors.New("Error parsing request body:" + err.Error())
+	}
+	return nil
+}
+
+// Bind data from request.Form[key] to dest
+// like /?id=123&isok=true&ft=1.2&ol[0]=1&ol[1]=2&ul[]=str&ul[]=array&user.Name=astaxie
+// var id int  beegoInput.Bind(&id, "id")  id ==123
+// var isok bool  beegoInput.Bind(&isok, "isok")  isok ==true
+// var ft float64  beegoInput.Bind(&ft, "ft")  ft ==1.2
+// ol := make([]int, 0, 2)  beegoInput.Bind(&ol, "ol")  ol ==[1 2]
+// ul := make([]string, 0, 2)  beegoInput.Bind(&ul, "ul")  ul ==[str array]
+// user struct{Name}  beegoInput.Bind(&user, "user")  user == {Name:"astaxie"}
+func (input *BeegoInput) Bind(dest interface{}, key string) error {
+	value := reflect.ValueOf(dest)
+	if value.Kind() != reflect.Ptr {
+		return errors.New("beego: non-pointer passed to Bind: " + key)
+	}
+	value = value.Elem()
+	if !value.CanSet() {
+		return errors.New("beego: non-settable variable passed to Bind: " + key)
+	}
+	typ := value.Type()
+	// Get real type if dest define with interface{}.
+	// e.g  var dest interface{} dest=1.0
+	if value.Kind() == reflect.Interface {
+		typ = value.Elem().Type()
+	}
+	rv := input.bind(key, typ)
+	if !rv.IsValid() {
+		return errors.New("beego: reflect value is empty")
+	}
+	value.Set(rv)
+	return nil
+}
+
+func (input *BeegoInput) bind(key string, typ reflect.Type) reflect.Value {
+	if input.Context.Request.Form == nil {
+		input.Context.Request.ParseForm()
+	}
+	rv := reflect.Zero(typ)
+	switch typ.Kind() {
+	case reflect.Int, reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int64:
+		val := input.Query(key)
+		if len(val) == 0 {
+			return rv
+		}
+		rv = input.bindInt(val, typ)
+	case reflect.Uint, reflect.Uint8, reflect.Uint16, reflect.Uint32, reflect.Uint64:
+		val := input.Query(key)
+		if len(val) == 0 {
+			return rv
+		}
+		rv = input.bindUint(val, typ)
+	case reflect.Float32, reflect.Float64:
+		val := input.Query(key)
+		if len(val) == 0 {
+			return rv
+		}
+		rv = input.bindFloat(val, typ)
+	case reflect.String:
+		val := input.Query(key)
+		if len(val) == 0 {
+			return rv
+		}
+		rv = input.bindString(val, typ)
+	case reflect.Bool:
+		val := input.Query(key)
+		if len(val) == 0 {
+			return rv
+		}
+		rv = input.bindBool(val, typ)
+	case reflect.Slice:
+		rv = input.bindSlice(&input.Context.Request.Form, key, typ)
+	case reflect.Struct:
+		rv = input.bindStruct(&input.Context.Request.Form, key, typ)
+	case reflect.Ptr:
+		rv = input.bindPoint(key, typ)
+	case reflect.Map:
+		rv = input.bindMap(&input.Context.Request.Form, key, typ)
+	}
+	return rv
+}
+
+func (input *BeegoInput) bindValue(val string, typ reflect.Type) reflect.Value {
+	rv := reflect.Zero(typ)
+	switch typ.Kind() {
+	case reflect.Int, reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int64:
+		rv = input.bindInt(val, typ)
+	case reflect.Uint, reflect.Uint8, reflect.Uint16, reflect.Uint32, reflect.Uint64:
+		rv = input.bindUint(val, typ)
+	case reflect.Float32, reflect.Float64:
+		rv = input.bindFloat(val, typ)
+	case reflect.String:
+		rv = input.bindString(val, typ)
+	case reflect.Bool:
+		rv = input.bindBool(val, typ)
+	case reflect.Slice:
+		rv = input.bindSlice(&url.Values{"": {val}}, "", typ)
+	case reflect.Struct:
+		rv = input.bindStruct(&url.Values{"": {val}}, "", typ)
+	case reflect.Ptr:
+		rv = input.bindPoint(val, typ)
+	case reflect.Map:
+		rv = input.bindMap(&url.Values{"": {val}}, "", typ)
+	}
+	return rv
+}
+
+func (input *BeegoInput) bindInt(val string, typ reflect.Type) reflect.Value {
+	intValue, err := strconv.ParseInt(val, 10, 64)
+	if err != nil {
+		return reflect.Zero(typ)
+	}
+	pValue := reflect.New(typ)
+	pValue.Elem().SetInt(intValue)
+	return pValue.Elem()
+}
+
+func (input *BeegoInput) bindUint(val string, typ reflect.Type) reflect.Value {
+	uintValue, err := strconv.ParseUint(val, 10, 64)
+	if err != nil {
+		return reflect.Zero(typ)
+	}
+	pValue := reflect.New(typ)
+	pValue.Elem().SetUint(uintValue)
+	return pValue.Elem()
+}
+
+func (input *BeegoInput) bindFloat(val string, typ reflect.Type) reflect.Value {
+	floatValue, err := strconv.ParseFloat(val, 64)
+	if err != nil {
+		return reflect.Zero(typ)
+	}
+	pValue := reflect.New(typ)
+	pValue.Elem().SetFloat(floatValue)
+	return pValue.Elem()
+}
+
+func (input *BeegoInput) bindString(val string, typ reflect.Type) reflect.Value {
+	return reflect.ValueOf(val)
+}
+
+func (input *BeegoInput) bindBool(val string, typ reflect.Type) reflect.Value {
+	val = strings.TrimSpace(strings.ToLower(val))
+	switch val {
+	case "true", "on", "1":
+		return reflect.ValueOf(true)
+	}
+	return reflect.ValueOf(false)
+}
+
+type sliceValue struct {
+	index int           // Index extracted from brackets.  If -1, no index was provided.
+	value reflect.Value // the bound value for this slice element.
+}
+
+func (input *BeegoInput) bindSlice(params *url.Values, key string, typ reflect.Type) reflect.Value {
+	maxIndex := -1
+	numNoIndex := 0
+	sliceValues := []sliceValue{}
+	for reqKey, vals := range *params {
+		if !strings.HasPrefix(reqKey, key+"[") {
+			continue
+		}
+		// Extract the index, and the index where a sub-key starts. (e.g. field[0].subkey)
+		index := -1
+		leftBracket, rightBracket := len(key), strings.Index(reqKey[len(key):], "]")+len(key)
+		if rightBracket > leftBracket+1 {
+			index, _ = strconv.Atoi(reqKey[leftBracket+1 : rightBracket])
+		}
+		subKeyIndex := rightBracket + 1
+
+		// Handle the indexed case.
+		if index > -1 {
+			if index > maxIndex {
+				maxIndex = index
+			}
+			sliceValues = append(sliceValues, sliceValue{
+				index: index,
+				value: input.bind(reqKey[:subKeyIndex], typ.Elem()),
+			})
+			continue
+		}
+
+		// It's an un-indexed element.  (e.g. element[])
+		numNoIndex += len(vals)
+		for _, val := range vals {
+			// Unindexed values can only be direct-bound.
+			sliceValues = append(sliceValues, sliceValue{
+				index: -1,
+				value: input.bindValue(val, typ.Elem()),
+			})
+		}
+	}
+	resultArray := reflect.MakeSlice(typ, maxIndex+1, maxIndex+1+numNoIndex)
+	for _, sv := range sliceValues {
+		if sv.index != -1 {
+			resultArray.Index(sv.index).Set(sv.value)
+		} else {
+			resultArray = reflect.Append(resultArray, sv.value)
+		}
+	}
+	return resultArray
+}
+
+func (input *BeegoInput) bindStruct(params *url.Values, key string, typ reflect.Type) reflect.Value {
+	result := reflect.New(typ).Elem()
+	fieldValues := make(map[string]reflect.Value)
+	for reqKey, val := range *params {
+		var fieldName string
+		if strings.HasPrefix(reqKey, key+".") {
+			fieldName = reqKey[len(key)+1:]
+		} else if strings.HasPrefix(reqKey, key+"[") && reqKey[len(reqKey)-1] == ']' {
+			fieldName = reqKey[len(key)+1 : len(reqKey)-1]
+		} else {
+			continue
+		}
+
+		if _, ok := fieldValues[fieldName]; !ok {
+			// Time to bind this field.  Get it and make sure we can set it.
+			fieldValue := result.FieldByName(fieldName)
+			if !fieldValue.IsValid() {
+				continue
+			}
+			if !fieldValue.CanSet() {
+				continue
+			}
+			boundVal := input.bindValue(val[0], fieldValue.Type())
+			fieldValue.Set(boundVal)
+			fieldValues[fieldName] = boundVal
+		}
+	}
+
+	return result
+}
+
+func (input *BeegoInput) bindPoint(key string, typ reflect.Type) reflect.Value {
+	return input.bind(key, typ.Elem()).Addr()
+}
+
+func (input *BeegoInput) bindMap(params *url.Values, key string, typ reflect.Type) reflect.Value {
+	var (
+		result    = reflect.MakeMap(typ)
+		keyType   = typ.Key()
+		valueType = typ.Elem()
+	)
+	for paramName, values := range *params {
+		if !strings.HasPrefix(paramName, key+"[") || paramName[len(paramName)-1] != ']' {
+			continue
+		}
+
+		key := paramName[len(key)+1 : len(paramName)-1]
+		result.SetMapIndex(input.bindValue(key, keyType), input.bindValue(values[0], valueType))
+	}
+	return result
+}

pkg/context/input_test.go

@@ -0,0 +1,217 @@
+// Copyright 2014 beego Author. All Rights Reserved.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//      http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package context
+
+import (
+	"net/http"
+	"net/http/httptest"
+	"reflect"
+	"testing"
+)
+
+func TestBind(t *testing.T) {
+	type testItem struct {
+		field string
+		empty interface{}
+		want  interface{}
+	}
+	type Human struct {
+		ID   int
+		Nick string
+		Pwd  string
+		Ms   bool
+	}
+
+	cases := []struct {
+		request string
+		valueGp []testItem
+	}{
+		{"/?p=str", []testItem{{"p", interface{}(""), interface{}("str")}}},
+
+		{"/?p=", []testItem{{"p", "", ""}}},
+		{"/?p=str", []testItem{{"p", "", "str"}}},
+
+		{"/?p=123", []testItem{{"p", 0, 123}}},
+		{"/?p=123", []testItem{{"p", uint(0), uint(123)}}},
+
+		{"/?p=1.0", []testItem{{"p", 0.0, 1.0}}},
+		{"/?p=1", []testItem{{"p", false, true}}},
+
+		{"/?p=true", []testItem{{"p", false, true}}},
+		{"/?p=ON", []testItem{{"p", false, true}}},
+		{"/?p=on", []testItem{{"p", false, true}}},
+		{"/?p=1", []testItem{{"p", false, true}}},
+		{"/?p=2", []testItem{{"p", false, false}}},
+		{"/?p=false", []testItem{{"p", false, false}}},
+
+		{"/?p[a]=1&p[b]=2&p[c]=3", []testItem{{"p", map[string]int{}, map[string]int{"a": 1, "b": 2, "c": 3}}}},
+		{"/?p[a]=v1&p[b]=v2&p[c]=v3", []testItem{{"p", map[string]string{}, map[string]string{"a": "v1", "b": "v2", "c": "v3"}}}},
+
+		{"/?p[]=8&p[]=9&p[]=10", []testItem{{"p", []int{}, []int{8, 9, 10}}}},
+		{"/?p[0]=8&p[1]=9&p[2]=10", []testItem{{"p", []int{}, []int{8, 9, 10}}}},
+		{"/?p[0]=8&p[1]=9&p[2]=10&p[5]=14", []testItem{{"p", []int{}, []int{8, 9, 10, 0, 0, 14}}}},
+		{"/?p[0]=8.0&p[1]=9.0&p[2]=10.0", []testItem{{"p", []float64{}, []float64{8.0, 9.0, 10.0}}}},
+
+		{"/?p[]=10&p[]=9&p[]=8", []testItem{{"p", []string{}, []string{"10", "9", "8"}}}},
+		{"/?p[0]=8&p[1]=9&p[2]=10", []testItem{{"p", []string{}, []string{"8", "9", "10"}}}},
+
+		{"/?p[0]=true&p[1]=false&p[2]=true&p[5]=1&p[6]=ON&p[7]=other", []testItem{{"p", []bool{}, []bool{true, false, true, false, false, true, true, false}}}},
+
+		{"/?human.Nick=astaxie", []testItem{{"human", Human{}, Human{Nick: "astaxie"}}}},
+		{"/?human.ID=888&human.Nick=astaxie&human.Ms=true&human[Pwd]=pass", []testItem{{"human", Human{}, Human{ID: 888, Nick: "astaxie", Ms: true, Pwd: "pass"}}}},
+		{"/?human[0].ID=888&human[0].Nick=astaxie&human[0].Ms=true&human[0][Pwd]=pass01&human[1].ID=999&human[1].Nick=ysqi&human[1].Ms=On&human[1].Pwd=pass02",
+			[]testItem{{"human", []Human{}, []Human{
+				{ID: 888, Nick: "astaxie", Ms: true, Pwd: "pass01"},
+				{ID: 999, Nick: "ysqi", Ms: true, Pwd: "pass02"},
+			}}}},
+
+		{
+			"/?id=123&isok=true&ft=1.2&ol[0]=1&ol[1]=2&ul[]=str&ul[]=array&human.Nick=astaxie",
+			[]testItem{
+				{"id", 0, 123},
+				{"isok", false, true},
+				{"ft", 0.0, 1.2},
+				{"ol", []int{}, []int{1, 2}},
+				{"ul", []string{}, []string{"str", "array"}},
+				{"human", Human{}, Human{Nick: "astaxie"}},
+			},
+		},
+	}
+	for _, c := range cases {
+		r, _ := http.NewRequest("GET", c.request, nil)
+		beegoInput := NewInput()
+		beegoInput.Context = NewContext()
+		beegoInput.Context.Reset(httptest.NewRecorder(), r)
+
+		for _, item := range c.valueGp {
+			got := item.empty
+			err := beegoInput.Bind(&got, item.field)
+			if err != nil {
+				t.Fatal(err)
+			}
+			if !reflect.DeepEqual(got, item.want) {
+				t.Fatalf("Bind %q error,should be:\n%#v \ngot:\n%#v", item.field, item.want, got)
+			}
+		}
+
+	}
+}
+
+func TestSubDomain(t *testing.T) {
+	r, _ := http.NewRequest("GET", "http://www.example.com/?id=123&isok=true&ft=1.2&ol[0]=1&ol[1]=2&ul[]=str&ul[]=array&user.Name=astaxie", nil)
+	beegoInput := NewInput()
+	beegoInput.Context = NewContext()
+	beegoInput.Context.Reset(httptest.NewRecorder(), r)
+
+	subdomain := beegoInput.SubDomains()
+	if subdomain != "www" {
+		t.Fatal("Subdomain parse error, got" + subdomain)
+	}
+
+	r, _ = http.NewRequest("GET", "http://localhost/", nil)
+	beegoInput.Context.Request = r
+	if beegoInput.SubDomains() != "" {
+		t.Fatal("Subdomain parse error, should be empty, got " + beegoInput.SubDomains())
+	}
+
+	r, _ = http.NewRequest("GET", "http://aa.bb.example.com/", nil)
+	beegoInput.Context.Request = r
+	if beegoInput.SubDomains() != "aa.bb" {
+		t.Fatal("Subdomain parse error, got " + beegoInput.SubDomains())
+	}
+
+	/* TODO Fix this
+	r, _ = http.NewRequest("GET", "http://127.0.0.1/", nil)
+	beegoInput.Context.Request = r
+	if beegoInput.SubDomains() != "" {
+		t.Fatal("Subdomain parse error, got " + beegoInput.SubDomains())
+	}
+	*/
+
+	r, _ = http.NewRequest("GET", "http://example.com/", nil)
+	beegoInput.Context.Request = r
+	if beegoInput.SubDomains() != "" {
+		t.Fatal("Subdomain parse error, got " + beegoInput.SubDomains())
+	}
+
+	r, _ = http.NewRequest("GET", "http://aa.bb.cc.dd.example.com/", nil)
+	beegoInput.Context.Request = r
+	if beegoInput.SubDomains() != "aa.bb.cc.dd" {
+		t.Fatal("Subdomain parse error, got " + beegoInput.SubDomains())
+	}
+}
+
+func TestParams(t *testing.T) {
+	inp := NewInput()
+
+	inp.SetParam("p1", "val1_ver1")
+	inp.SetParam("p2", "val2_ver1")
+	inp.SetParam("p3", "val3_ver1")
+	if l := inp.ParamsLen(); l != 3 {
+		t.Fatalf("Input.ParamsLen wrong value: %d, expected %d", l, 3)
+	}
+
+	if val := inp.Param("p1"); val != "val1_ver1" {
+		t.Fatalf("Input.Param wrong value: %s, expected %s", val, "val1_ver1")
+	}
+	if val := inp.Param("p3"); val != "val3_ver1" {
+		t.Fatalf("Input.Param wrong value: %s, expected %s", val, "val3_ver1")
+	}
+	vals := inp.Params()
+	expected := map[string]string{
+		"p1": "val1_ver1",
+		"p2": "val2_ver1",
+		"p3": "val3_ver1",
+	}
+	if !reflect.DeepEqual(vals, expected) {
+		t.Fatalf("Input.Params wrong value: %s, expected %s", vals, expected)
+	}
+
+	// overwriting existing params
+	inp.SetParam("p1", "val1_ver2")
+	inp.SetParam("p2", "val2_ver2")
+	expected = map[string]string{
+		"p1": "val1_ver2",
+		"p2": "val2_ver2",
+		"p3": "val3_ver1",
+	}
+	vals = inp.Params()
+	if !reflect.DeepEqual(vals, expected) {
+		t.Fatalf("Input.Params wrong value: %s, expected %s", vals, expected)
+	}
+
+	if l := inp.ParamsLen(); l != 3 {
+		t.Fatalf("Input.ParamsLen wrong value: %d, expected %d", l, 3)
+	}
+
+	if val := inp.Param("p1"); val != "val1_ver2" {
+		t.Fatalf("Input.Param wrong value: %s, expected %s", val, "val1_ver2")
+	}
+
+	if val := inp.Param("p2"); val != "val2_ver2" {
+		t.Fatalf("Input.Param wrong value: %s, expected %s", val, "val1_ver2")
+	}
+
+}
+func BenchmarkQuery(b *testing.B) {
+	beegoInput := NewInput()
+	beegoInput.Context = NewContext()
+	beegoInput.Context.Request, _ = http.NewRequest("POST", "http://www.example.com/?q=foo", nil)
+	b.RunParallel(func(pb *testing.PB) {
+		for pb.Next() {
+			beegoInput.Query("q")
+		}
+	})
+}

pkg/context/output.go

@@ -0,0 +1,408 @@
+// Copyright 2014 beego Author. All Rights Reserved.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//      http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package context
+
+import (
+	"bytes"
+	"encoding/json"
+	"encoding/xml"
+	"errors"
+	"fmt"
+	"html/template"
+	"io"
+	"mime"
+	"net/http"
+	"net/url"
+	"os"
+	"path/filepath"
+	"strconv"
+	"strings"
+	"time"
+
+	yaml "gopkg.in/yaml.v2"
+)
+
+// BeegoOutput does work for sending response header.
+type BeegoOutput struct {
+	Context    *Context
+	Status     int
+	EnableGzip bool
+}
+
+// NewOutput returns new BeegoOutput.
+// it contains nothing now.
+func NewOutput() *BeegoOutput {
+	return &BeegoOutput{}
+}
+
+// Reset init BeegoOutput
+func (output *BeegoOutput) Reset(ctx *Context) {
+	output.Context = ctx
+	output.Status = 0
+}
+
+// Header sets response header item string via given key.
+func (output *BeegoOutput) Header(key, val string) {
+	output.Context.ResponseWriter.Header().Set(key, val)
+}
+
+// Body sets response body content.
+// if EnableGzip, compress content string.
+// it sends out response body directly.
+func (output *BeegoOutput) Body(content []byte) error {
+	var encoding string
+	var buf = &bytes.Buffer{}
+	if output.EnableGzip {
+		encoding = ParseEncoding(output.Context.Request)
+	}
+	if b, n, _ := WriteBody(encoding, buf, content); b {
+		output.Header("Content-Encoding", n)
+		output.Header("Content-Length", strconv.Itoa(buf.Len()))
+	} else {
+		output.Header("Content-Length", strconv.Itoa(len(content)))
+	}
+	// Write status code if it has been set manually
+	// Set it to 0 afterwards to prevent "multiple response.WriteHeader calls"
+	if output.Status != 0 {
+		output.Context.ResponseWriter.WriteHeader(output.Status)
+		output.Status = 0
+	} else {
+		output.Context.ResponseWriter.Started = true
+	}
+	io.Copy(output.Context.ResponseWriter, buf)
+	return nil
+}
+
+// Cookie sets cookie value via given key.
+// others are ordered as cookie's max age time, path,domain, secure and httponly.
+func (output *BeegoOutput) Cookie(name string, value string, others ...interface{}) {
+	var b bytes.Buffer
+	fmt.Fprintf(&b, "%s=%s", sanitizeName(name), sanitizeValue(value))
+
+	//fix cookie not work in IE
+	if len(others) > 0 {
+		var maxAge int64
+
+		switch v := others[0].(type) {
+		case int:
+			maxAge = int64(v)
+		case int32:
+			maxAge = int64(v)
+		case int64:
+			maxAge = v
+		}
+
+		switch {
+		case maxAge > 0:
+			fmt.Fprintf(&b, "; Expires=%s; Max-Age=%d", time.Now().Add(time.Duration(maxAge)*time.Second).UTC().Format(time.RFC1123), maxAge)
+		case maxAge < 0:
+			fmt.Fprintf(&b, "; Max-Age=0")
+		}
+	}
+
+	// the settings below
+	// Path, Domain, Secure, HttpOnly
+	// can use nil skip set
+
+	// default "/"
+	if len(others) > 1 {
+		if v, ok := others[1].(string); ok && len(v) > 0 {
+			fmt.Fprintf(&b, "; Path=%s", sanitizeValue(v))
+		}
+	} else {
+		fmt.Fprintf(&b, "; Path=%s", "/")
+	}
+
+	// default empty
+	if len(others) > 2 {
+		if v, ok := others[2].(string); ok && len(v) > 0 {
+			fmt.Fprintf(&b, "; Domain=%s", sanitizeValue(v))
+		}
+	}
+
+	// default empty
+	if len(others) > 3 {
+		var secure bool
+		switch v := others[3].(type) {
+		case bool:
+			secure = v
+		default:
+			if others[3] != nil {
+				secure = true
+			}
+		}
+		if secure {
+			fmt.Fprintf(&b, "; Secure")
+		}
+	}
+
+	// default false. for session cookie default true
+	if len(others) > 4 {
+		if v, ok := others[4].(bool); ok && v {
+			fmt.Fprintf(&b, "; HttpOnly")
+		}
+	}
+
+	output.Context.ResponseWriter.Header().Add("Set-Cookie", b.String())
+}
+
+var cookieNameSanitizer = strings.NewReplacer("\n", "-", "\r", "-")
+
+func sanitizeName(n string) string {
+	return cookieNameSanitizer.Replace(n)
+}
+
+var cookieValueSanitizer = strings.NewReplacer("\n", " ", "\r", " ", ";", " ")
+
+func sanitizeValue(v string) string {
+	return cookieValueSanitizer.Replace(v)
+}
+
+func jsonRenderer(value interface{}) Renderer {
+	return rendererFunc(func(ctx *Context) {
+		ctx.Output.JSON(value, false, false)
+	})
+}
+
+func errorRenderer(err error) Renderer {
+	return rendererFunc(func(ctx *Context) {
+		ctx.Output.SetStatus(500)
+		ctx.Output.Body([]byte(err.Error()))
+	})
+}
+
+// JSON writes json to response body.
+// if encoding is true, it converts utf-8 to \u0000 type.
+func (output *BeegoOutput) JSON(data interface{}, hasIndent bool, encoding bool) error {
+	output.Header("Content-Type", "application/json; charset=utf-8")
+	var content []byte
+	var err error
+	if hasIndent {
+		content, err = json.MarshalIndent(data, "", "  ")
+	} else {
+		content, err = json.Marshal(data)
+	}
+	if err != nil {
+		http.Error(output.Context.ResponseWriter, err.Error(), http.StatusInternalServerError)
+		return err
+	}
+	if encoding {
+		content = []byte(stringsToJSON(string(content)))
+	}
+	return output.Body(content)
+}
+
+// YAML writes yaml to response body.
+func (output *BeegoOutput) YAML(data interface{}) error {
+	output.Header("Content-Type", "application/x-yaml; charset=utf-8")
+	var content []byte
+	var err error
+	content, err = yaml.Marshal(data)
+	if err != nil {
+		http.Error(output.Context.ResponseWriter, err.Error(), http.StatusInternalServerError)
+		return err
+	}
+	return output.Body(content)
+}
+
+// JSONP writes jsonp to response body.
+func (output *BeegoOutput) JSONP(data interface{}, hasIndent bool) error {
+	output.Header("Content-Type", "application/javascript; charset=utf-8")
+	var content []byte
+	var err error
+	if hasIndent {
+		content, err = json.MarshalIndent(data, "", "  ")
+	} else {
+		content, err = json.Marshal(data)
+	}
+	if err != nil {
+		http.Error(output.Context.ResponseWriter, err.Error(), http.StatusInternalServerError)
+		return err
+	}
+	callback := output.Context.Input.Query("callback")
+	if callback == "" {
+		return errors.New(`"callback" parameter required`)
+	}
+	callback = template.JSEscapeString(callback)
+	callbackContent := bytes.NewBufferString(" if(window." + callback + ")" + callback)
+	callbackContent.WriteString("(")
+	callbackContent.Write(content)
+	callbackContent.WriteString(");\r\n")
+	return output.Body(callbackContent.Bytes())
+}
+
+// XML writes xml string to response body.
+func (output *BeegoOutput) XML(data interface{}, hasIndent bool) error {
+	output.Header("Content-Type", "application/xml; charset=utf-8")
+	var content []byte
+	var err error
+	if hasIndent {
+		content, err = xml.MarshalIndent(data, "", "  ")
+	} else {
+		content, err = xml.Marshal(data)
+	}
+	if err != nil {
+		http.Error(output.Context.ResponseWriter, err.Error(), http.StatusInternalServerError)
+		return err
+	}
+	return output.Body(content)
+}
+
+// ServeFormatted serve YAML, XML OR JSON, depending on the value of the Accept header
+func (output *BeegoOutput) ServeFormatted(data interface{}, hasIndent bool, hasEncode ...bool) {
+	accept := output.Context.Input.Header("Accept")
+	switch accept {
+	case ApplicationYAML:
+		output.YAML(data)
+	case ApplicationXML, TextXML:
+		output.XML(data, hasIndent)
+	default:
+		output.JSON(data, hasIndent, len(hasEncode) > 0 && hasEncode[0])
+	}
+}
+
+// Download forces response for download file.
+// it prepares the download response header automatically.
+func (output *BeegoOutput) Download(file string, filename ...string) {
+	// check get file error, file not found or other error.
+	if _, err := os.Stat(file); err != nil {
+		http.ServeFile(output.Context.ResponseWriter, output.Context.Request, file)
+		return
+	}
+
+	var fName string
+	if len(filename) > 0 && filename[0] != "" {
+		fName = filename[0]
+	} else {
+		fName = filepath.Base(file)
+	}
+	//https://tools.ietf.org/html/rfc6266#section-4.3
+	fn := url.PathEscape(fName)
+	if fName == fn {
+		fn = "filename=" + fn
+	} else {
+		/**
+		  The parameters "filename" and "filename*" differ only in that
+		  "filename*" uses the encoding defined in [RFC5987], allowing the use
+		  of characters not present in the ISO-8859-1 character set
+		  ([ISO-8859-1]).
+		*/
+		fn = "filename=" + fName + "; filename*=utf-8''" + fn
+	}
+	output.Header("Content-Disposition", "attachment; "+fn)
+	output.Header("Content-Description", "File Transfer")
+	output.Header("Content-Type", "application/octet-stream")
+	output.Header("Content-Transfer-Encoding", "binary")
+	output.Header("Expires", "0")
+	output.Header("Cache-Control", "must-revalidate")
+	output.Header("Pragma", "public")
+	http.ServeFile(output.Context.ResponseWriter, output.Context.Request, file)
+}
+
+// ContentType sets the content type from ext string.
+// MIME type is given in mime package.
+func (output *BeegoOutput) ContentType(ext string) {
+	if !strings.HasPrefix(ext, ".") {
+		ext = "." + ext
+	}
+	ctype := mime.TypeByExtension(ext)
+	if ctype != "" {
+		output.Header("Content-Type", ctype)
+	}
+}
+
+// SetStatus sets response status code.
+// It writes response header directly.
+func (output *BeegoOutput) SetStatus(status int) {
+	output.Status = status
+}
+
+// IsCachable returns boolean of this request is cached.
+// HTTP 304 means cached.
+func (output *BeegoOutput) IsCachable() bool {
+	return output.Status >= 200 && output.Status < 300 || output.Status == 304
+}
+
+// IsEmpty returns boolean of this request is empty.
+// HTTP 201，204 and 304 means empty.
+func (output *BeegoOutput) IsEmpty() bool {
+	return output.Status == 201 || output.Status == 204 || output.Status == 304
+}
+
+// IsOk returns boolean of this request runs well.
+// HTTP 200 means ok.
+func (output *BeegoOutput) IsOk() bool {
+	return output.Status == 200
+}
+
+// IsSuccessful returns boolean of this request runs successfully.
+// HTTP 2xx means ok.
+func (output *BeegoOutput) IsSuccessful() bool {
+	return output.Status >= 200 && output.Status < 300
+}
+
+// IsRedirect returns boolean of this request is redirection header.
+// HTTP 301,302,307 means redirection.
+func (output *BeegoOutput) IsRedirect() bool {
+	return output.Status == 301 || output.Status == 302 || output.Status == 303 || output.Status == 307
+}
+
+// IsForbidden returns boolean of this request is forbidden.
+// HTTP 403 means forbidden.
+func (output *BeegoOutput) IsForbidden() bool {
+	return output.Status == 403
+}
+
+// IsNotFound returns boolean of this request is not found.
+// HTTP 404 means not found.
+func (output *BeegoOutput) IsNotFound() bool {
+	return output.Status == 404
+}
+
+// IsClientError returns boolean of this request client sends error data.
+// HTTP 4xx means client error.
+func (output *BeegoOutput) IsClientError() bool {
+	return output.Status >= 400 && output.Status < 500
+}
+
+// IsServerError returns boolean of this server handler errors.
+// HTTP 5xx means server internal error.
+func (output *BeegoOutput) IsServerError() bool {
+	return output.Status >= 500 && output.Status < 600
+}
+
+func stringsToJSON(str string) string {
+	var jsons bytes.Buffer
+	for _, r := range str {
+		rint := int(r)
+		if rint < 128 {
+			jsons.WriteRune(r)
+		} else {
+			jsons.WriteString("\\u")
+			if rint < 0x100 {
+				jsons.WriteString("00")
+			} else if rint < 0x1000 {
+				jsons.WriteString("0")
+			}
+			jsons.WriteString(strconv.FormatInt(int64(rint), 16))
+		}
+	}
+	return jsons.String()
+}
+
+// Session sets session item value with given key.
+func (output *BeegoOutput) Session(name interface{}, value interface{}) {
+	output.Context.Input.CruSession.Set(name, value)
+}

pkg/context/param/conv.go

@@ -0,0 +1,78 @@
+package param
+
+import (
+	"fmt"
+	"reflect"
+
+	beecontext "github.com/astaxie/beego/context"
+	"github.com/astaxie/beego/logs"
+)
+
+// ConvertParams converts http method params to values that will be passed to the method controller as arguments
+func ConvertParams(methodParams []*MethodParam, methodType reflect.Type, ctx *beecontext.Context) (result []reflect.Value) {
+	result = make([]reflect.Value, 0, len(methodParams))
+	for i := 0; i < len(methodParams); i++ {
+		reflectValue := convertParam(methodParams[i], methodType.In(i), ctx)
+		result = append(result, reflectValue)
+	}
+	return
+}
+
+func convertParam(param *MethodParam, paramType reflect.Type, ctx *beecontext.Context) (result reflect.Value) {
+	paramValue := getParamValue(param, ctx)
+	if paramValue == "" {
+		if param.required {
+			ctx.Abort(400, fmt.Sprintf("Missing parameter %s", param.name))
+		} else {
+			paramValue = param.defaultValue
+		}
+	}
+
+	reflectValue, err := parseValue(param, paramValue, paramType)
+	if err != nil {
+		logs.Debug(fmt.Sprintf("Error converting param %s to type %s. Value: %v, Error: %s", param.name, paramType, paramValue, err))
+		ctx.Abort(400, fmt.Sprintf("Invalid parameter %s. Can not convert %v to type %s", param.name, paramValue, paramType))
+	}
+
+	return reflectValue
+}
+
+func getParamValue(param *MethodParam, ctx *beecontext.Context) string {
+	switch param.in {
+	case body:
+		return string(ctx.Input.RequestBody)
+	case header:
+		return ctx.Input.Header(param.name)
+	case path:
+		return ctx.Input.Query(":" + param.name)
+	default:
+		return ctx.Input.Query(param.name)
+	}
+}
+
+func parseValue(param *MethodParam, paramValue string, paramType reflect.Type) (result reflect.Value, err error) {
+	if paramValue == "" {
+		return reflect.Zero(paramType), nil
+	}
+	parser := getParser(param, paramType)
+	value, err := parser.parse(paramValue, paramType)
+	if err != nil {
+		return result, err
+	}
+
+	return safeConvert(reflect.ValueOf(value), paramType)
+}
+
+func safeConvert(value reflect.Value, t reflect.Type) (result reflect.Value, err error) {
+	defer func() {
+		if r := recover(); r != nil {
+			var ok bool
+			err, ok = r.(error)
+			if !ok {
+				err = fmt.Errorf("%v", r)
+			}
+		}
+	}()
+	result = value.Convert(t)
+	return
+}

pkg/context/param/methodparams.go

@@ -0,0 +1,69 @@
+package param
+
+import (
+	"fmt"
+	"strings"
+)
+
+//MethodParam keeps param information to be auto passed to controller methods
+type MethodParam struct {
+	name         string
+	in           paramType
+	required     bool
+	defaultValue string
+}
+
+type paramType byte
+
+const (
+	param paramType = iota
+	path
+	body
+	header
+)
+
+//New creates a new MethodParam with name and specific options
+func New(name string, opts ...MethodParamOption) *MethodParam {
+	return newParam(name, nil, opts)
+}
+
+func newParam(name string, parser paramParser, opts []MethodParamOption) (param *MethodParam) {
+	param = &MethodParam{name: name}
+	for _, option := range opts {
+		option(param)
+	}
+	return
+}
+
+//Make creates an array of MethodParmas or an empty array
+func Make(list ...*MethodParam) []*MethodParam {
+	if len(list) > 0 {
+		return list
+	}
+	return nil
+}
+
+func (mp *MethodParam) String() string {
+	options := []string{}
+	result := "param.New(\"" + mp.name + "\""
+	if mp.required {
+		options = append(options, "param.IsRequired")
+	}
+	switch mp.in {
+	case path:
+		options = append(options, "param.InPath")
+	case body:
+		options = append(options, "param.InBody")
+	case header:
+		options = append(options, "param.InHeader")
+	}
+	if mp.defaultValue != "" {
+		options = append(options, fmt.Sprintf(`param.Default("%s")`, mp.defaultValue))
+	}
+	if len(options) > 0 {
+		result += ", "
+	}
+	result += strings.Join(options, ", ")
+	result += ")"
+	return result
+}

pkg/context/param/options.go

@@ -0,0 +1,37 @@
+package param
+
+import (
+	"fmt"
+)
+
+// MethodParamOption defines a func which apply options on a MethodParam
+type MethodParamOption func(*MethodParam)
+
+// IsRequired indicates that this param is required and can not be omitted from the http request
+var IsRequired MethodParamOption = func(p *MethodParam) {
+	p.required = true
+}
+
+// InHeader indicates that this param is passed via an http header
+var InHeader MethodParamOption = func(p *MethodParam) {
+	p.in = header
+}
+
+// InPath indicates that this param is part of the URL path
+var InPath MethodParamOption = func(p *MethodParam) {
+	p.in = path
+}
+
+// InBody indicates that this param is passed as an http request body
+var InBody MethodParamOption = func(p *MethodParam) {
+	p.in = body
+}
+
+// Default provides a default value for the http param
+func Default(defaultValue interface{}) MethodParamOption {
+	return func(p *MethodParam) {
+		if defaultValue != nil {
+			p.defaultValue = fmt.Sprint(defaultValue)
+		}
+	}
+}

pkg/context/param/parsers.go

@@ -0,0 +1,149 @@
+package param
+
+import (
+	"encoding/json"
+	"reflect"
+	"strconv"
+	"strings"
+	"time"
+)
+
+type paramParser interface {
+	parse(value string, toType reflect.Type) (interface{}, error)
+}
+
+func getParser(param *MethodParam, t reflect.Type) paramParser {
+	switch t.Kind() {
+	case reflect.Int, reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int64,
+		reflect.Uint, reflect.Uint8, reflect.Uint16, reflect.Uint32, reflect.Uint64:
+		return intParser{}
+	case reflect.Slice:
+		if t.Elem().Kind() == reflect.Uint8 { //treat []byte as string
+			return stringParser{}
+		}
+		if param.in == body {
+			return jsonParser{}
+		}
+		elemParser := getParser(param, t.Elem())
+		if elemParser == (jsonParser{}) {
+			return elemParser
+		}
+		return sliceParser(elemParser)
+	case reflect.Bool:
+		return boolParser{}
+	case reflect.String:
+		return stringParser{}
+	case reflect.Float32, reflect.Float64:
+		return floatParser{}
+	case reflect.Ptr:
+		elemParser := getParser(param, t.Elem())
+		if elemParser == (jsonParser{}) {
+			return elemParser
+		}
+		return ptrParser(elemParser)
+	default:
+		if t.PkgPath() == "time" && t.Name() == "Time" {
+			return timeParser{}
+		}
+		return jsonParser{}
+	}
+}
+
+type parserFunc func(value string, toType reflect.Type) (interface{}, error)
+
+func (f parserFunc) parse(value string, toType reflect.Type) (interface{}, error) {
+	return f(value, toType)
+}
+
+type boolParser struct {
+}
+
+func (p boolParser) parse(value string, toType reflect.Type) (interface{}, error) {
+	return strconv.ParseBool(value)
+}
+
+type stringParser struct {
+}
+
+func (p stringParser) parse(value string, toType reflect.Type) (interface{}, error) {
+	return value, nil
+}
+
+type intParser struct {
+}
+
+func (p intParser) parse(value string, toType reflect.Type) (interface{}, error) {
+	return strconv.Atoi(value)
+}
+
+type floatParser struct {
+}
+
+func (p floatParser) parse(value string, toType reflect.Type) (interface{}, error) {
+	if toType.Kind() == reflect.Float32 {
+		res, err := strconv.ParseFloat(value, 32)
+		if err != nil {
+			return nil, err
+		}
+		return float32(res), nil
+	}
+	return strconv.ParseFloat(value, 64)
+}
+
+type timeParser struct {
+}
+
+func (p timeParser) parse(value string, toType reflect.Type) (result interface{}, err error) {
+	result, err = time.Parse(time.RFC3339, value)
+	if err != nil {
+		result, err = time.Parse("2006-01-02", value)
+	}
+	return
+}
+
+type jsonParser struct {
+}
+
+func (p jsonParser) parse(value string, toType reflect.Type) (interface{}, error) {
+	pResult := reflect.New(toType)
+	v := pResult.Interface()
+	err := json.Unmarshal([]byte(value), v)
+	if err != nil {
+		return nil, err
+	}
+	return pResult.Elem().Interface(), nil
+}
+
+func sliceParser(elemParser paramParser) paramParser {
+	return parserFunc(func(value string, toType reflect.Type) (interface{}, error) {
+		values := strings.Split(value, ",")
+		result := reflect.MakeSlice(toType, 0, len(values))
+		elemType := toType.Elem()
+		for _, v := range values {
+			parsedValue, err := elemParser.parse(v, elemType)
+			if err != nil {
+				return nil, err
+			}
+			result = reflect.Append(result, reflect.ValueOf(parsedValue))
+		}
+		return result.Interface(), nil
+	})
+}
+
+func ptrParser(elemParser paramParser) paramParser {
+	return parserFunc(func(value string, toType reflect.Type) (interface{}, error) {
+		parsedValue, err := elemParser.parse(value, toType.Elem())
+		if err != nil {
+			return nil, err
+		}
+		newValPtr := reflect.New(toType.Elem())
+		newVal := reflect.Indirect(newValPtr)
+		convertedVal, err := safeConvert(reflect.ValueOf(parsedValue), toType.Elem())
+		if err != nil {
+			return nil, err
+		}
+
+		newVal.Set(convertedVal)
+		return newValPtr.Interface(), nil
+	})
+}

pkg/context/param/parsers_test.go

@@ -0,0 +1,84 @@
+package param
+
+import "testing"
+import "reflect"
+import "time"
+
+type testDefinition struct {
+	strValue       string
+	expectedValue  interface{}
+	expectedParser paramParser
+}
+
+func Test_Parsers(t *testing.T) {
+
+	//ints
+	checkParser(testDefinition{"1", 1, intParser{}}, t)
+	checkParser(testDefinition{"-1", int64(-1), intParser{}}, t)
+	checkParser(testDefinition{"1", uint64(1), intParser{}}, t)
+
+	//floats
+	checkParser(testDefinition{"1.0", float32(1.0), floatParser{}}, t)
+	checkParser(testDefinition{"-1.0", float64(-1.0), floatParser{}}, t)
+
+	//strings
+	checkParser(testDefinition{"AB", "AB", stringParser{}}, t)
+	checkParser(testDefinition{"AB", []byte{65, 66}, stringParser{}}, t)
+
+	//bools
+	checkParser(testDefinition{"true", true, boolParser{}}, t)
+	checkParser(testDefinition{"0", false, boolParser{}}, t)
+
+	//timeParser
+	checkParser(testDefinition{"2017-05-30T13:54:53Z", time.Date(2017, 5, 30, 13, 54, 53, 0, time.UTC), timeParser{}}, t)
+	checkParser(testDefinition{"2017-05-30", time.Date(2017, 5, 30, 0, 0, 0, 0, time.UTC), timeParser{}}, t)
+
+	//json
+	checkParser(testDefinition{`{"X": 5, "Y":"Z"}`, struct {
+		X int
+		Y string
+	}{5, "Z"}, jsonParser{}}, t)
+
+	//slice in query is parsed as comma delimited
+	checkParser(testDefinition{`1,2`, []int{1, 2}, sliceParser(intParser{})}, t)
+
+	//slice in body is parsed as json
+	checkParser(testDefinition{`["a","b"]`, []string{"a", "b"}, jsonParser{}}, t, MethodParam{in: body})
+
+	//pointers
+	var someInt = 1
+	checkParser(testDefinition{`1`, &someInt, ptrParser(intParser{})}, t)
+
+	var someStruct = struct{ X int }{5}
+	checkParser(testDefinition{`{"X": 5}`, &someStruct, jsonParser{}}, t)
+
+}
+
+func checkParser(def testDefinition, t *testing.T, methodParam ...MethodParam) {
+	toType := reflect.TypeOf(def.expectedValue)
+	var mp MethodParam
+	if len(methodParam) == 0 {
+		mp = MethodParam{}
+	} else {
+		mp = methodParam[0]
+	}
+	parser := getParser(&mp, toType)
+
+	if reflect.TypeOf(parser) != reflect.TypeOf(def.expectedParser) {
+		t.Errorf("Invalid parser for value %v. Expected: %v, actual: %v", def.strValue, reflect.TypeOf(def.expectedParser).Name(), reflect.TypeOf(parser).Name())
+		return
+	}
+	result, err := parser.parse(def.strValue, toType)
+	if err != nil {
+		t.Errorf("Parsing error for value %v. Expected result: %v, error: %v", def.strValue, def.expectedValue, err)
+		return
+	}
+	convResult, err := safeConvert(reflect.ValueOf(result), toType)
+	if err != nil {
+		t.Errorf("Conversion error for %v. from value: %v, toType: %v, error: %v", def.strValue, result, toType, err)
+		return
+	}
+	if !reflect.DeepEqual(convResult.Interface(), def.expectedValue) {
+		t.Errorf("Parsing error for value %v. Expected result: %v, actual: %v", def.strValue, def.expectedValue, result)
+	}
+}

pkg/context/renderer.go

@@ -0,0 +1,12 @@
+package context
+
+// Renderer defines an http response renderer
+type Renderer interface {
+	Render(ctx *Context)
+}
+
+type rendererFunc func(ctx *Context)
+
+func (f rendererFunc) Render(ctx *Context) {
+	f(ctx)
+}

pkg/context/response.go

@@ -0,0 +1,27 @@
+package context
+
+import (
+	"strconv"
+
+	"net/http"
+)
+
+const (
+	//BadRequest indicates http error 400
+	BadRequest StatusCode = http.StatusBadRequest
+
+	//NotFound indicates http error 404
+	NotFound StatusCode = http.StatusNotFound
+)
+
+// StatusCode sets the http response status code
+type StatusCode int
+
+func (s StatusCode) Error() string {
+	return strconv.Itoa(int(s))
+}
+
+// Render sets the http status code
+func (s StatusCode) Render(ctx *Context) {
+	ctx.Output.SetStatus(int(s))
+}

pkg/controller.go

@@ -0,0 +1,706 @@
+// Copyright 2014 beego Author. All Rights Reserved.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//      http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package beego
+
+import (
+	"bytes"
+	"errors"
+	"fmt"
+	"html/template"
+	"io"
+	"mime/multipart"
+	"net/http"
+	"net/url"
+	"os"
+	"reflect"
+	"strconv"
+	"strings"
+
+	"github.com/astaxie/beego/context"
+	"github.com/astaxie/beego/context/param"
+	"github.com/astaxie/beego/session"
+)
+
+var (
+	// ErrAbort custom error when user stop request handler manually.
+	ErrAbort = errors.New("user stop run")
+	// GlobalControllerRouter store comments with controller. pkgpath+controller:comments
+	GlobalControllerRouter = make(map[string][]ControllerComments)
+)
+
+// ControllerFilter store the filter for controller
+type ControllerFilter struct {
+	Pattern        string
+	Pos            int
+	Filter         FilterFunc
+	ReturnOnOutput bool
+	ResetParams    bool
+}
+
+// ControllerFilterComments store the comment for controller level filter
+type ControllerFilterComments struct {
+	Pattern        string
+	Pos            int
+	Filter         string // NOQA
+	ReturnOnOutput bool
+	ResetParams    bool
+}
+
+// ControllerImportComments store the import comment for controller needed
+type ControllerImportComments struct {
+	ImportPath  string
+	ImportAlias string
+}
+
+// ControllerComments store the comment for the controller method
+type ControllerComments struct {
+	Method           string
+	Router           string
+	Filters          []*ControllerFilter
+	ImportComments   []*ControllerImportComments
+	FilterComments   []*ControllerFilterComments
+	AllowHTTPMethods []string
+	Params           []map[string]string
+	MethodParams     []*param.MethodParam
+}
+
+// ControllerCommentsSlice implements the sort interface
+type ControllerCommentsSlice []ControllerComments
+
+func (p ControllerCommentsSlice) Len() int           { return len(p) }
+func (p ControllerCommentsSlice) Less(i, j int) bool { return p[i].Router < p[j].Router }
+func (p ControllerCommentsSlice) Swap(i, j int)      { p[i], p[j] = p[j], p[i] }
+
+// Controller defines some basic http request handler operations, such as
+// http context, template and view, session and xsrf.
+type Controller struct {
+	// context data
+	Ctx  *context.Context
+	Data map[interface{}]interface{}
+
+	// route controller info
+	controllerName string
+	actionName     string
+	methodMapping  map[string]func() //method:routertree
+	AppController  interface{}
+
+	// template data
+	TplName        string
+	ViewPath       string
+	Layout         string
+	LayoutSections map[string]string // the key is the section name and the value is the template name
+	TplPrefix      string
+	TplExt         string
+	EnableRender   bool
+
+	// xsrf data
+	_xsrfToken string
+	XSRFExpire int
+	EnableXSRF bool
+
+	// session
+	CruSession session.Store
+}
+
+// ControllerInterface is an interface to uniform all controller handler.
+type ControllerInterface interface {
+	Init(ct *context.Context, controllerName, actionName string, app interface{})
+	Prepare()
+	Get()
+	Post()
+	Delete()
+	Put()
+	Head()
+	Patch()
+	Options()
+	Trace()
+	Finish()
+	Render() error
+	XSRFToken() string
+	CheckXSRFCookie() bool
+	HandlerFunc(fn string) bool
+	URLMapping()
+}
+
+// Init generates default values of controller operations.
+func (c *Controller) Init(ctx *context.Context, controllerName, actionName string, app interface{}) {
+	c.Layout = ""
+	c.TplName = ""
+	c.controllerName = controllerName
+	c.actionName = actionName
+	c.Ctx = ctx
+	c.TplExt = "tpl"
+	c.AppController = app
+	c.EnableRender = true
+	c.EnableXSRF = true
+	c.Data = ctx.Input.Data()
+	c.methodMapping = make(map[string]func())
+}
+
+// Prepare runs after Init before request function execution.
+func (c *Controller) Prepare() {}
+
+// Finish runs after request function execution.
+func (c *Controller) Finish() {}
+
+// Get adds a request function to handle GET request.
+func (c *Controller) Get() {
+	http.Error(c.Ctx.ResponseWriter, "Method Not Allowed", http.StatusMethodNotAllowed)
+}
+
+// Post adds a request function to handle POST request.
+func (c *Controller) Post() {
+	http.Error(c.Ctx.ResponseWriter, "Method Not Allowed", http.StatusMethodNotAllowed)
+}
+
+// Delete adds a request function to handle DELETE request.
+func (c *Controller) Delete() {
+	http.Error(c.Ctx.ResponseWriter, "Method Not Allowed", http.StatusMethodNotAllowed)
+}
+
+// Put adds a request function to handle PUT request.
+func (c *Controller) Put() {
+	http.Error(c.Ctx.ResponseWriter, "Method Not Allowed", http.StatusMethodNotAllowed)
+}
+
+// Head adds a request function to handle HEAD request.
+func (c *Controller) Head() {
+	http.Error(c.Ctx.ResponseWriter, "Method Not Allowed", http.StatusMethodNotAllowed)
+}
+
+// Patch adds a request function to handle PATCH request.
+func (c *Controller) Patch() {
+	http.Error(c.Ctx.ResponseWriter, "Method Not Allowed", http.StatusMethodNotAllowed)
+}
+
+// Options adds a request function to handle OPTIONS request.
+func (c *Controller) Options() {
+	http.Error(c.Ctx.ResponseWriter, "Method Not Allowed", http.StatusMethodNotAllowed)
+}
+
+// Trace adds a request function to handle Trace request.
+// this method SHOULD NOT be overridden.
+// https://tools.ietf.org/html/rfc7231#section-4.3.8
+// The TRACE method requests a remote, application-level loop-back of
+// the request message.  The final recipient of the request SHOULD
+// reflect the message received, excluding some fields described below,
+// back to the client as the message body of a 200 (OK) response with a
+// Content-Type of "message/http" (Section 8.3.1 of [RFC7230]).
+func (c *Controller) Trace() {
+	ts := func(h http.Header) (hs string) {
+		for k, v := range h {
+			hs += fmt.Sprintf("\r\n%s: %s", k, v)
+		}
+		return
+	}
+	hs := fmt.Sprintf("\r\nTRACE %s %s%s\r\n", c.Ctx.Request.RequestURI, c.Ctx.Request.Proto, ts(c.Ctx.Request.Header))
+	c.Ctx.Output.Header("Content-Type", "message/http")
+	c.Ctx.Output.Header("Content-Length", fmt.Sprint(len(hs)))
+	c.Ctx.Output.Header("Cache-Control", "no-cache, no-store, must-revalidate")
+	c.Ctx.WriteString(hs)
+}
+
+// HandlerFunc call function with the name
+func (c *Controller) HandlerFunc(fnname string) bool {
+	if v, ok := c.methodMapping[fnname]; ok {
+		v()
+		return true
+	}
+	return false
+}
+
+// URLMapping register the internal Controller router.
+func (c *Controller) URLMapping() {}
+
+// Mapping the method to function
+func (c *Controller) Mapping(method string, fn func()) {
+	c.methodMapping[method] = fn
+}
+
+// Render sends the response with rendered template bytes as text/html type.
+func (c *Controller) Render() error {
+	if !c.EnableRender {
+		return nil
+	}
+	rb, err := c.RenderBytes()
+	if err != nil {
+		return err
+	}
+
+	if c.Ctx.ResponseWriter.Header().Get("Content-Type") == "" {
+		c.Ctx.Output.Header("Content-Type", "text/html; charset=utf-8")
+	}
+
+	return c.Ctx.Output.Body(rb)
+}
+
+// RenderString returns the rendered template string. Do not send out response.
+func (c *Controller) RenderString() (string, error) {
+	b, e := c.RenderBytes()
+	return string(b), e
+}
+
+// RenderBytes returns the bytes of rendered template string. Do not send out response.
+func (c *Controller) RenderBytes() ([]byte, error) {
+	buf, err := c.renderTemplate()
+	//if the controller has set layout, then first get the tplName's content set the content to the layout
+	if err == nil && c.Layout != "" {
+		c.Data["LayoutContent"] = template.HTML(buf.String())
+
+		if c.LayoutSections != nil {
+			for sectionName, sectionTpl := range c.LayoutSections {
+				if sectionTpl == "" {
+					c.Data[sectionName] = ""
+					continue
+				}
+				buf.Reset()
+				err = ExecuteViewPathTemplate(&buf, sectionTpl, c.viewPath(), c.Data)
+				if err != nil {
+					return nil, err
+				}
+				c.Data[sectionName] = template.HTML(buf.String())
+			}
+		}
+
+		buf.Reset()
+		ExecuteViewPathTemplate(&buf, c.Layout, c.viewPath(), c.Data)
+	}
+	return buf.Bytes(), err
+}
+
+func (c *Controller) renderTemplate() (bytes.Buffer, error) {
+	var buf bytes.Buffer
+	if c.TplName == "" {
+		c.TplName = strings.ToLower(c.controllerName) + "/" + strings.ToLower(c.actionName) + "." + c.TplExt
+	}
+	if c.TplPrefix != "" {
+		c.TplName = c.TplPrefix + c.TplName
+	}
+	if BConfig.RunMode == DEV {
+		buildFiles := []string{c.TplName}
+		if c.Layout != "" {
+			buildFiles = append(buildFiles, c.Layout)
+			if c.LayoutSections != nil {
+				for _, sectionTpl := range c.LayoutSections {
+					if sectionTpl == "" {
+						continue
+					}
+					buildFiles = append(buildFiles, sectionTpl)
+				}
+			}
+		}
+		BuildTemplate(c.viewPath(), buildFiles...)
+	}
+	return buf, ExecuteViewPathTemplate(&buf, c.TplName, c.viewPath(), c.Data)
+}
+
+func (c *Controller) viewPath() string {
+	if c.ViewPath == "" {
+		return BConfig.WebConfig.ViewsPath
+	}
+	return c.ViewPath
+}
+
+// Redirect sends the redirection response to url with status code.
+func (c *Controller) Redirect(url string, code int) {
+	LogAccess(c.Ctx, nil, code)
+	c.Ctx.Redirect(code, url)
+}
+
+// SetData set the data depending on the accepted
+func (c *Controller) SetData(data interface{}) {
+	accept := c.Ctx.Input.Header("Accept")
+	switch accept {
+	case context.ApplicationYAML:
+		c.Data["yaml"] = data
+	case context.ApplicationXML, context.TextXML:
+		c.Data["xml"] = data
+	default:
+		c.Data["json"] = data
+	}
+}
+
+// Abort stops controller handler and show the error data if code is defined in ErrorMap or code string.
+func (c *Controller) Abort(code string) {
+	status, err := strconv.Atoi(code)
+	if err != nil {
+		status = 200
+	}
+	c.CustomAbort(status, code)
+}
+
+// CustomAbort stops controller handler and show the error data, it's similar Aborts, but support status code and body.
+func (c *Controller) CustomAbort(status int, body string) {
+	// first panic from ErrorMaps, it is user defined error functions.
+	if _, ok := ErrorMaps[body]; ok {
+		c.Ctx.Output.Status = status
+		panic(body)
+	}
+	// last panic user string
+	c.Ctx.ResponseWriter.WriteHeader(status)
+	c.Ctx.ResponseWriter.Write([]byte(body))
+	panic(ErrAbort)
+}
+
+// StopRun makes panic of USERSTOPRUN error and go to recover function if defined.
+func (c *Controller) StopRun() {
+	panic(ErrAbort)
+}
+
+// URLFor does another controller handler in this request function.
+// it goes to this controller method if endpoint is not clear.
+func (c *Controller) URLFor(endpoint string, values ...interface{}) string {
+	if len(endpoint) == 0 {
+		return ""
+	}
+	if endpoint[0] == '.' {
+		return URLFor(reflect.Indirect(reflect.ValueOf(c.AppController)).Type().Name()+endpoint, values...)
+	}
+	return URLFor(endpoint, values...)
+}
+
+// ServeJSON sends a json response with encoding charset.
+func (c *Controller) ServeJSON(encoding ...bool) {
+	var (
+		hasIndent   = BConfig.RunMode != PROD
+		hasEncoding = len(encoding) > 0 && encoding[0]
+	)
+
+	c.Ctx.Output.JSON(c.Data["json"], hasIndent, hasEncoding)
+}
+
+// ServeJSONP sends a jsonp response.
+func (c *Controller) ServeJSONP() {
+	hasIndent := BConfig.RunMode != PROD
+	c.Ctx.Output.JSONP(c.Data["jsonp"], hasIndent)
+}
+
+// ServeXML sends xml response.
+func (c *Controller) ServeXML() {
+	hasIndent := BConfig.RunMode != PROD
+	c.Ctx.Output.XML(c.Data["xml"], hasIndent)
+}
+
+// ServeYAML sends yaml response.
+func (c *Controller) ServeYAML() {
+	c.Ctx.Output.YAML(c.Data["yaml"])
+}
+
+// ServeFormatted serve YAML, XML OR JSON, depending on the value of the Accept header
+func (c *Controller) ServeFormatted(encoding ...bool) {
+	hasIndent := BConfig.RunMode != PROD
+	hasEncoding := len(encoding) > 0 && encoding[0]
+	c.Ctx.Output.ServeFormatted(c.Data, hasIndent, hasEncoding)
+}
+
+// Input returns the input data map from POST or PUT request body and query string.
+func (c *Controller) Input() url.Values {
+	if c.Ctx.Request.Form == nil {
+		c.Ctx.Request.ParseForm()
+	}
+	return c.Ctx.Request.Form
+}
+
+// ParseForm maps input data map to obj struct.
+func (c *Controller) ParseForm(obj interface{}) error {
+	return ParseForm(c.Input(), obj)
+}
+
+// GetString returns the input value by key string or the default value while it's present and input is blank
+func (c *Controller) GetString(key string, def ...string) string {
+	if v := c.Ctx.Input.Query(key); v != "" {
+		return v
+	}
+	if len(def) > 0 {
+		return def[0]
+	}
+	return ""
+}
+
+// GetStrings returns the input string slice by key string or the default value while it's present and input is blank
+// it's designed for multi-value input field such as checkbox(input[type=checkbox]), multi-selection.
+func (c *Controller) GetStrings(key string, def ...[]string) []string {
+	var defv []string
+	if len(def) > 0 {
+		defv = def[0]
+	}
+
+	if f := c.Input(); f == nil {
+		return defv
+	} else if vs := f[key]; len(vs) > 0 {
+		return vs
+	}
+
+	return defv
+}
+
+// GetInt returns input as an int or the default value while it's present and input is blank
+func (c *Controller) GetInt(key string, def ...int) (int, error) {
+	strv := c.Ctx.Input.Query(key)
+	if len(strv) == 0 && len(def) > 0 {
+		return def[0], nil
+	}
+	return strconv.Atoi(strv)
+}
+
+// GetInt8 return input as an int8 or the default value while it's present and input is blank
+func (c *Controller) GetInt8(key string, def ...int8) (int8, error) {
+	strv := c.Ctx.Input.Query(key)
+	if len(strv) == 0 && len(def) > 0 {
+		return def[0], nil
+	}
+	i64, err := strconv.ParseInt(strv, 10, 8)
+	return int8(i64), err
+}
+
+// GetUint8 return input as an uint8 or the default value while it's present and input is blank
+func (c *Controller) GetUint8(key string, def ...uint8) (uint8, error) {
+	strv := c.Ctx.Input.Query(key)
+	if len(strv) == 0 && len(def) > 0 {
+		return def[0], nil
+	}
+	u64, err := strconv.ParseUint(strv, 10, 8)
+	return uint8(u64), err
+}
+
+// GetInt16 returns input as an int16 or the default value while it's present and input is blank
+func (c *Controller) GetInt16(key string, def ...int16) (int16, error) {
+	strv := c.Ctx.Input.Query(key)
+	if len(strv) == 0 && len(def) > 0 {
+		return def[0], nil
+	}
+	i64, err := strconv.ParseInt(strv, 10, 16)
+	return int16(i64), err
+}
+
+// GetUint16 returns input as an uint16 or the default value while it's present and input is blank
+func (c *Controller) GetUint16(key string, def ...uint16) (uint16, error) {
+	strv := c.Ctx.Input.Query(key)
+	if len(strv) == 0 && len(def) > 0 {
+		return def[0], nil
+	}
+	u64, err := strconv.ParseUint(strv, 10, 16)
+	return uint16(u64), err
+}
+
+// GetInt32 returns input as an int32 or the default value while it's present and input is blank
+func (c *Controller) GetInt32(key string, def ...int32) (int32, error) {
+	strv := c.Ctx.Input.Query(key)
+	if len(strv) == 0 && len(def) > 0 {
+		return def[0], nil
+	}
+	i64, err := strconv.ParseInt(strv, 10, 32)
+	return int32(i64), err
+}
+
+// GetUint32 returns input as an uint32 or the default value while it's present and input is blank
+func (c *Controller) GetUint32(key string, def ...uint32) (uint32, error) {
+	strv := c.Ctx.Input.Query(key)
+	if len(strv) == 0 && len(def) > 0 {
+		return def[0], nil
+	}
+	u64, err := strconv.ParseUint(strv, 10, 32)
+	return uint32(u64), err
+}
+
+// GetInt64 returns input value as int64 or the default value while it's present and input is blank.
+func (c *Controller) GetInt64(key string, def ...int64) (int64, error) {
+	strv := c.Ctx.Input.Query(key)
+	if len(strv) == 0 && len(def) > 0 {
+		return def[0], nil
+	}
+	return strconv.ParseInt(strv, 10, 64)
+}
+
+// GetUint64 returns input value as uint64 or the default value while it's present and input is blank.
+func (c *Controller) GetUint64(key string, def ...uint64) (uint64, error) {
+	strv := c.Ctx.Input.Query(key)
+	if len(strv) == 0 && len(def) > 0 {
+		return def[0], nil
+	}
+	return strconv.ParseUint(strv, 10, 64)
+}
+
+// GetBool returns input value as bool or the default value while it's present and input is blank.
+func (c *Controller) GetBool(key string, def ...bool) (bool, error) {
+	strv := c.Ctx.Input.Query(key)
+	if len(strv) == 0 && len(def) > 0 {
+		return def[0], nil
+	}
+	return strconv.ParseBool(strv)
+}
+
+// GetFloat returns input value as float64 or the default value while it's present and input is blank.
+func (c *Controller) GetFloat(key string, def ...float64) (float64, error) {
+	strv := c.Ctx.Input.Query(key)
+	if len(strv) == 0 && len(def) > 0 {
+		return def[0], nil
+	}
+	return strconv.ParseFloat(strv, 64)
+}
+
+// GetFile returns the file data in file upload field named as key.
+// it returns the first one of multi-uploaded files.
+func (c *Controller) GetFile(key string) (multipart.File, *multipart.FileHeader, error) {
+	return c.Ctx.Request.FormFile(key)
+}
+
+// GetFiles return multi-upload files
+// files, err:=c.GetFiles("myfiles")
+//	if err != nil {
+//		http.Error(w, err.Error(), http.StatusNoContent)
+//		return
+//	}
+// for i, _ := range files {
+//	//for each fileheader, get a handle to the actual file
+//	file, err := files[i].Open()
+//	defer file.Close()
+//	if err != nil {
+//		http.Error(w, err.Error(), http.StatusInternalServerError)
+//		return
+//	}
+//	//create destination file making sure the path is writeable.
+//	dst, err := os.Create("upload/" + files[i].Filename)
+//	defer dst.Close()
+//	if err != nil {
+//		http.Error(w, err.Error(), http.StatusInternalServerError)
+//		return
+//	}
+//	//copy the uploaded file to the destination file
+//	if _, err := io.Copy(dst, file); err != nil {
+//		http.Error(w, err.Error(), http.StatusInternalServerError)
+//		return
+//	}
+// }
+func (c *Controller) GetFiles(key string) ([]*multipart.FileHeader, error) {
+	if files, ok := c.Ctx.Request.MultipartForm.File[key]; ok {
+		return files, nil
+	}
+	return nil, http.ErrMissingFile
+}
+
+// SaveToFile saves uploaded file to new path.
+// it only operates the first one of mutil-upload form file field.
+func (c *Controller) SaveToFile(fromfile, tofile string) error {
+	file, _, err := c.Ctx.Request.FormFile(fromfile)
+	if err != nil {
+		return err
+	}
+	defer file.Close()
+	f, err := os.OpenFile(tofile, os.O_WRONLY|os.O_CREATE|os.O_TRUNC, 0666)
+	if err != nil {
+		return err
+	}
+	defer f.Close()
+	io.Copy(f, file)
+	return nil
+}
+
+// StartSession starts session and load old session data info this controller.
+func (c *Controller) StartSession() session.Store {
+	if c.CruSession == nil {
+		c.CruSession = c.Ctx.Input.CruSession
+	}
+	return c.CruSession
+}
+
+// SetSession puts value into session.
+func (c *Controller) SetSession(name interface{}, value interface{}) {
+	if c.CruSession == nil {
+		c.StartSession()
+	}
+	c.CruSession.Set(name, value)
+}
+
+// GetSession gets value from session.
+func (c *Controller) GetSession(name interface{}) interface{} {
+	if c.CruSession == nil {
+		c.StartSession()
+	}
+	return c.CruSession.Get(name)
+}
+
+// DelSession removes value from session.
+func (c *Controller) DelSession(name interface{}) {
+	if c.CruSession == nil {
+		c.StartSession()
+	}
+	c.CruSession.Delete(name)
+}
+
+// SessionRegenerateID regenerates session id for this session.
+// the session data have no changes.
+func (c *Controller) SessionRegenerateID() {
+	if c.CruSession != nil {
+		c.CruSession.SessionRelease(c.Ctx.ResponseWriter)
+	}
+	c.CruSession = GlobalSessions.SessionRegenerateID(c.Ctx.ResponseWriter, c.Ctx.Request)
+	c.Ctx.Input.CruSession = c.CruSession
+}
+
+// DestroySession cleans session data and session cookie.
+func (c *Controller) DestroySession() {
+	c.Ctx.Input.CruSession.Flush()
+	c.Ctx.Input.CruSession = nil
+	GlobalSessions.SessionDestroy(c.Ctx.ResponseWriter, c.Ctx.Request)
+}
+
+// IsAjax returns this request is ajax or not.
+func (c *Controller) IsAjax() bool {
+	return c.Ctx.Input.IsAjax()
+}
+
+// GetSecureCookie returns decoded cookie value from encoded browser cookie values.
+func (c *Controller) GetSecureCookie(Secret, key string) (string, bool) {
+	return c.Ctx.GetSecureCookie(Secret, key)
+}
+
+// SetSecureCookie puts value into cookie after encoded the value.
+func (c *Controller) SetSecureCookie(Secret, name, value string, others ...interface{}) {
+	c.Ctx.SetSecureCookie(Secret, name, value, others...)
+}
+
+// XSRFToken creates a CSRF token string and returns.
+func (c *Controller) XSRFToken() string {
+	if c._xsrfToken == "" {
+		expire := int64(BConfig.WebConfig.XSRFExpire)
+		if c.XSRFExpire > 0 {
+			expire = int64(c.XSRFExpire)
+		}
+		c._xsrfToken = c.Ctx.XSRFToken(BConfig.WebConfig.XSRFKey, expire)
+	}
+	return c._xsrfToken
+}
+
+// CheckXSRFCookie checks xsrf token in this request is valid or not.
+// the token can provided in request header "X-Xsrftoken" and "X-CsrfToken"
+// or in form field value named as "_xsrf".
+func (c *Controller) CheckXSRFCookie() bool {
+	if !c.EnableXSRF {
+		return true
+	}
+	return c.Ctx.CheckXSRFCookie()
+}
+
+// XSRFFormHTML writes an input field contains xsrf token value.
+func (c *Controller) XSRFFormHTML() string {
+	return `<input type="hidden" name="_xsrf" value="` +
+		c.XSRFToken() + `" />`
+}
+
+// GetControllerAndAction gets the executing controller name and action name.
+func (c *Controller) GetControllerAndAction() (string, string) {
+	return c.controllerName, c.actionName
+}

pkg/controller_test.go

@@ -0,0 +1,181 @@
+// Copyright 2014 beego Author. All Rights Reserved.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//      http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package beego
+
+import (
+	"math"
+	"strconv"
+	"testing"
+
+	"github.com/astaxie/beego/context"
+	"os"
+	"path/filepath"
+)
+
+func TestGetInt(t *testing.T) {
+	i := context.NewInput()
+	i.SetParam("age", "40")
+	ctx := &context.Context{Input: i}
+	ctrlr := Controller{Ctx: ctx}
+	val, _ := ctrlr.GetInt("age")
+	if val != 40 {
+		t.Errorf("TestGetInt expect 40,get %T,%v", val, val)
+	}
+}
+
+func TestGetInt8(t *testing.T) {
+	i := context.NewInput()
+	i.SetParam("age", "40")
+	ctx := &context.Context{Input: i}
+	ctrlr := Controller{Ctx: ctx}
+	val, _ := ctrlr.GetInt8("age")
+	if val != 40 {
+		t.Errorf("TestGetInt8 expect 40,get %T,%v", val, val)
+	}
+	//Output: int8
+}
+
+func TestGetInt16(t *testing.T) {
+	i := context.NewInput()
+	i.SetParam("age", "40")
+	ctx := &context.Context{Input: i}
+	ctrlr := Controller{Ctx: ctx}
+	val, _ := ctrlr.GetInt16("age")
+	if val != 40 {
+		t.Errorf("TestGetInt16 expect 40,get %T,%v", val, val)
+	}
+}
+
+func TestGetInt32(t *testing.T) {
+	i := context.NewInput()
+	i.SetParam("age", "40")
+	ctx := &context.Context{Input: i}
+	ctrlr := Controller{Ctx: ctx}
+	val, _ := ctrlr.GetInt32("age")
+	if val != 40 {
+		t.Errorf("TestGetInt32 expect 40,get %T,%v", val, val)
+	}
+}
+
+func TestGetInt64(t *testing.T) {
+	i := context.NewInput()
+	i.SetParam("age", "40")
+	ctx := &context.Context{Input: i}
+	ctrlr := Controller{Ctx: ctx}
+	val, _ := ctrlr.GetInt64("age")
+	if val != 40 {
+		t.Errorf("TestGeetInt64 expect 40,get %T,%v", val, val)
+	}
+}
+
+func TestGetUint8(t *testing.T) {
+	i := context.NewInput()
+	i.SetParam("age", strconv.FormatUint(math.MaxUint8, 10))
+	ctx := &context.Context{Input: i}
+	ctrlr := Controller{Ctx: ctx}
+	val, _ := ctrlr.GetUint8("age")
+	if val != math.MaxUint8 {
+		t.Errorf("TestGetUint8 expect %v,get %T,%v", math.MaxUint8, val, val)
+	}
+}
+
+func TestGetUint16(t *testing.T) {
+	i := context.NewInput()
+	i.SetParam("age", strconv.FormatUint(math.MaxUint16, 10))
+	ctx := &context.Context{Input: i}
+	ctrlr := Controller{Ctx: ctx}
+	val, _ := ctrlr.GetUint16("age")
+	if val != math.MaxUint16 {
+		t.Errorf("TestGetUint16 expect %v,get %T,%v", math.MaxUint16, val, val)
+	}
+}
+
+func TestGetUint32(t *testing.T) {
+	i := context.NewInput()
+	i.SetParam("age", strconv.FormatUint(math.MaxUint32, 10))
+	ctx := &context.Context{Input: i}
+	ctrlr := Controller{Ctx: ctx}
+	val, _ := ctrlr.GetUint32("age")
+	if val != math.MaxUint32 {
+		t.Errorf("TestGetUint32 expect %v,get %T,%v", math.MaxUint32, val, val)
+	}
+}
+
+func TestGetUint64(t *testing.T) {
+	i := context.NewInput()
+	i.SetParam("age", strconv.FormatUint(math.MaxUint64, 10))
+	ctx := &context.Context{Input: i}
+	ctrlr := Controller{Ctx: ctx}
+	val, _ := ctrlr.GetUint64("age")
+	if val != math.MaxUint64 {
+		t.Errorf("TestGetUint64 expect %v,get %T,%v", uint64(math.MaxUint64), val, val)
+	}
+}
+
+func TestAdditionalViewPaths(t *testing.T) {
+	dir1 := "_beeTmp"
+	dir2 := "_beeTmp2"
+	defer os.RemoveAll(dir1)
+	defer os.RemoveAll(dir2)
+
+	dir1file := "file1.tpl"
+	dir2file := "file2.tpl"
+
+	genFile := func(dir string, name string, content string) {
+		os.MkdirAll(filepath.Dir(filepath.Join(dir, name)), 0777)
+		if f, err := os.Create(filepath.Join(dir, name)); err != nil {
+			t.Fatal(err)
+		} else {
+			defer f.Close()
+			f.WriteString(content)
+			f.Close()
+		}
+
+	}
+	genFile(dir1, dir1file, `<div>{{.Content}}</div>`)
+	genFile(dir2, dir2file, `<html>{{.Content}}</html>`)
+
+	AddViewPath(dir1)
+	AddViewPath(dir2)
+
+	ctrl := Controller{
+		TplName:  "file1.tpl",
+		ViewPath: dir1,
+	}
+	ctrl.Data = map[interface{}]interface{}{
+		"Content": "value2",
+	}
+	if result, err := ctrl.RenderString(); err != nil {
+		t.Fatal(err)
+	} else {
+		if result != "<div>value2</div>" {
+			t.Fatalf("TestAdditionalViewPaths expect %s got %s", "<div>value2</div>", result)
+		}
+	}
+
+	func() {
+		ctrl.TplName = "file2.tpl"
+		defer func() {
+			if r := recover(); r == nil {
+				t.Fatal("TestAdditionalViewPaths expected error")
+			}
+		}()
+		ctrl.RenderString()
+	}()
+
+	ctrl.TplName = "file2.tpl"
+	ctrl.ViewPath = dir2
+	ctrl.RenderString()
+}

pkg/doc.go

@@ -0,0 +1,17 @@
+/*
+Package beego provide a MVC framework
+beego: an open-source, high-performance, modular, full-stack web framework
+
+It is used for rapid development of RESTful APIs, web apps and backend services in Go.
+beego is inspired by Tornado, Sinatra and Flask with the added benefit of some Go-specific features such as interfaces and struct embedding.
+
+	package main
+	import "github.com/astaxie/beego"
+
+	func main() {
+	 beego.Run()
+	}
+
+more information: http://beego.me
+*/
+package beego

pkg/error.go

@@ -0,0 +1,488 @@
+// Copyright 2014 beego Author. All Rights Reserved.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//      http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package beego
+
+import (
+	"fmt"
+	"html/template"
+	"net/http"
+	"reflect"
+	"runtime"
+	"strconv"
+	"strings"
+
+	"github.com/astaxie/beego/context"
+	"github.com/astaxie/beego/utils"
+)
+
+const (
+	errorTypeHandler = iota
+	errorTypeController
+)
+
+var tpl = `
+<!DOCTYPE html>
+<html>
+<head>
+    <meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
+    <title>beego application error</title>
+    <style>
+        html, body, body * {padding: 0; margin: 0;}
+        #header {background:#ffd; border-bottom:solid 2px #A31515; padding: 20px 10px;}
+        #header h2{ }
+        #footer {border-top:solid 1px #aaa; padding: 5px 10px; font-size: 12px; color:green;}
+        #content {padding: 5px;}
+        #content .stack b{ font-size: 13px; color: red;}
+        #content .stack pre{padding-left: 10px;}
+        table {}
+        td.t {text-align: right; padding-right: 5px; color: #888;}
+    </style>
+    <script type="text/javascript">
+    </script>
+</head>
+<body>
+    <div id="header">
+        <h2>{{.AppError}}</h2>
+    </div>
+    <div id="content">
+        <table>
+            <tr>
+                <td class="t">Request Method: </td><td>{{.RequestMethod}}</td>
+            </tr>
+            <tr>
+                <td class="t">Request URL: </td><td>{{.RequestURL}}</td>
+            </tr>
+            <tr>
+                <td class="t">RemoteAddr: </td><td>{{.RemoteAddr }}</td>
+            </tr>
+        </table>
+        <div class="stack">
+            <b>Stack</b>
+            <pre>{{.Stack}}</pre>
+        </div>
+    </div>
+    <div id="footer">
+        <p>beego {{ .BeegoVersion }} (beego framework)</p>
+        <p>golang version: {{.GoVersion}}</p>
+    </div>
+</body>
+</html>
+`
+
+// render default application error page with error and stack string.
+func showErr(err interface{}, ctx *context.Context, stack string) {
+	t, _ := template.New("beegoerrortemp").Parse(tpl)
+	data := map[string]string{
+		"AppError":      fmt.Sprintf("%s:%v", BConfig.AppName, err),
+		"RequestMethod": ctx.Input.Method(),
+		"RequestURL":    ctx.Input.URI(),
+		"RemoteAddr":    ctx.Input.IP(),
+		"Stack":         stack,
+		"BeegoVersion":  VERSION,
+		"GoVersion":     runtime.Version(),
+	}
+	t.Execute(ctx.ResponseWriter, data)
+}
+
+var errtpl = `
+<!DOCTYPE html>
+<html lang="en">
+	<head>
+		<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
+		<title>{{.Title}}</title>
+		<style type="text/css">
+			* {
+				margin:0;
+				padding:0;
+			}
+
+			body {
+				background-color:#EFEFEF;
+				font: .9em "Lucida Sans Unicode", "Lucida Grande", sans-serif;
+			}
+
+			#wrapper{
+				width:600px;
+				margin:40px auto 0;
+				text-align:center;
+				-moz-box-shadow: 5px 5px 10px rgba(0,0,0,0.3);
+				-webkit-box-shadow: 5px 5px 10px rgba(0,0,0,0.3);
+				box-shadow: 5px 5px 10px rgba(0,0,0,0.3);
+			}
+
+			#wrapper h1{
+				color:#FFF;
+				text-align:center;
+				margin-bottom:20px;
+			}
+
+			#wrapper a{
+				display:block;
+				font-size:.9em;
+				padding-top:20px;
+				color:#FFF;
+				text-decoration:none;
+				text-align:center;
+			}
+
+			#container {
+				width:600px;
+				padding-bottom:15px;
+				background-color:#FFFFFF;
+			}
+
+			.navtop{
+				height:40px;
+				background-color:#24B2EB;
+				padding:13px;
+			}
+
+			.content {
+				padding:10px 10px 25px;
+				background: #FFFFFF;
+				margin:;
+				color:#333;
+			}
+
+			a.button{
+				color:white;
+				padding:15px 20px;
+				text-shadow:1px 1px 0 #00A5FF;
+				font-weight:bold;
+				text-align:center;
+				border:1px solid #24B2EB;
+				margin:0px 200px;
+				clear:both;
+				background-color: #24B2EB;
+				border-radius:100px;
+				-moz-border-radius:100px;
+				-webkit-border-radius:100px;
+			}
+
+			a.button:hover{
+				text-decoration:none;
+				background-color: #24B2EB;
+			}
+
+		</style>
+	</head>
+	<body>
+		<div id="wrapper">
+			<div id="container">
+				<div class="navtop">
+					<h1>{{.Title}}</h1>
+				</div>
+				<div id="content">
+					{{.Content}}
+					<a href="/" title="Home" class="button">Go Home</a><br />
+
+					<br>Powered by beego {{.BeegoVersion}}
+				</div>
+			</div>
+		</div>
+	</body>
+</html>
+`
+
+type errorInfo struct {
+	controllerType reflect.Type
+	handler        http.HandlerFunc
+	method         string
+	errorType      int
+}
+
+// ErrorMaps holds map of http handlers for each error string.
+// there is 10 kinds default error(40x and 50x)
+var ErrorMaps = make(map[string]*errorInfo, 10)
+
+// show 401 unauthorized error.
+func unauthorized(rw http.ResponseWriter, r *http.Request) {
+	responseError(rw, r,
+		401,
+		"<br>The page you have requested can't be authorized."+
+			"<br>Perhaps you are here because:"+
+			"<br><br><ul>"+
+			"<br>The credentials you supplied are incorrect"+
+			"<br>There are errors in the website address"+
+			"</ul>",
+	)
+}
+
+// show 402 Payment Required
+func paymentRequired(rw http.ResponseWriter, r *http.Request) {
+	responseError(rw, r,
+		402,
+		"<br>The page you have requested Payment Required."+
+			"<br>Perhaps you are here because:"+
+			"<br><br><ul>"+
+			"<br>The credentials you supplied are incorrect"+
+			"<br>There are errors in the website address"+
+			"</ul>",
+	)
+}
+
+// show 403 forbidden error.
+func forbidden(rw http.ResponseWriter, r *http.Request) {
+	responseError(rw, r,
+		403,
+		"<br>The page you have requested is forbidden."+
+			"<br>Perhaps you are here because:"+
+			"<br><br><ul>"+
+			"<br>Your address may be blocked"+
+			"<br>The site may be disabled"+
+			"<br>You need to log in"+
+			"</ul>",
+	)
+}
+
+// show 422 missing xsrf token
+func missingxsrf(rw http.ResponseWriter, r *http.Request) {
+	responseError(rw, r,
+		422,
+		"<br>The page you have requested is forbidden."+
+			"<br>Perhaps you are here because:"+
+			"<br><br><ul>"+
+			"<br>'_xsrf' argument missing from POST"+
+			"</ul>",
+	)
+}
+
+// show 417 invalid xsrf token
+func invalidxsrf(rw http.ResponseWriter, r *http.Request) {
+	responseError(rw, r,
+		417,
+		"<br>The page you have requested is forbidden."+
+			"<br>Perhaps you are here because:"+
+			"<br><br><ul>"+
+			"<br>expected XSRF not found"+
+			"</ul>",
+	)
+}
+
+// show 404 not found error.
+func notFound(rw http.ResponseWriter, r *http.Request) {
+	responseError(rw, r,
+		404,
+		"<br>The page you have requested has flown the coop."+
+			"<br>Perhaps you are here because:"+
+			"<br><br><ul>"+
+			"<br>The page has moved"+
+			"<br>The page no longer exists"+
+			"<br>You were looking for your puppy and got lost"+
+			"<br>You like 404 pages"+
+			"</ul>",
+	)
+}
+
+// show 405 Method Not Allowed
+func methodNotAllowed(rw http.ResponseWriter, r *http.Request) {
+	responseError(rw, r,
+		405,
+		"<br>The method you have requested Not Allowed."+
+			"<br>Perhaps you are here because:"+
+			"<br><br><ul>"+
+			"<br>The method specified in the Request-Line is not allowed for the resource identified by the Request-URI"+
+			"<br>The response MUST include an Allow header containing a list of valid methods for the requested resource."+
+			"</ul>",
+	)
+}
+
+// show 500 internal server error.
+func internalServerError(rw http.ResponseWriter, r *http.Request) {
+	responseError(rw, r,
+		500,
+		"<br>The page you have requested is down right now."+
+			"<br><br><ul>"+
+			"<br>Please try again later and report the error to the website administrator"+
+			"<br></ul>",
+	)
+}
+
+// show 501 Not Implemented.
+func notImplemented(rw http.ResponseWriter, r *http.Request) {
+	responseError(rw, r,
+		501,
+		"<br>The page you have requested is Not Implemented."+
+			"<br><br><ul>"+
+			"<br>Please try again later and report the error to the website administrator"+
+			"<br></ul>",
+	)
+}
+
+// show 502 Bad Gateway.
+func badGateway(rw http.ResponseWriter, r *http.Request) {
+	responseError(rw, r,
+		502,
+		"<br>The page you have requested is down right now."+
+			"<br><br><ul>"+
+			"<br>The server, while acting as a gateway or proxy, received an invalid response from the upstream server it accessed in attempting to fulfill the request."+
+			"<br>Please try again later and report the error to the website administrator"+
+			"<br></ul>",
+	)
+}
+
+// show 503 service unavailable error.
+func serviceUnavailable(rw http.ResponseWriter, r *http.Request) {
+	responseError(rw, r,
+		503,
+		"<br>The page you have requested is unavailable."+
+			"<br>Perhaps you are here because:"+
+			"<br><br><ul>"+
+			"<br><br>The page is overloaded"+
+			"<br>Please try again later."+
+			"</ul>",
+	)
+}
+
+// show 504 Gateway Timeout.
+func gatewayTimeout(rw http.ResponseWriter, r *http.Request) {
+	responseError(rw, r,
+		504,
+		"<br>The page you have requested is unavailable"+
+			"<br>Perhaps you are here because:"+
+			"<br><br><ul>"+
+			"<br><br>The server, while acting as a gateway or proxy, did not receive a timely response from the upstream server specified by the URI."+
+			"<br>Please try again later."+
+			"</ul>",
+	)
+}
+
+// show 413 Payload Too Large
+func payloadTooLarge(rw http.ResponseWriter, r *http.Request) {
+	responseError(rw, r,
+		413,
+		`<br>The page you have requested is unavailable.
+		 <br>Perhaps you are here because:<br><br>
+		 <ul>
+			<br>The request entity is larger than limits defined by server.
+			<br>Please change the request entity and try again.
+		 </ul>
+		`,
+	)
+}
+
+func responseError(rw http.ResponseWriter, r *http.Request, errCode int, errContent string) {
+	t, _ := template.New("beegoerrortemp").Parse(errtpl)
+	data := M{
+		"Title":        http.StatusText(errCode),
+		"BeegoVersion": VERSION,
+		"Content":      template.HTML(errContent),
+	}
+	t.Execute(rw, data)
+}
+
+// ErrorHandler registers http.HandlerFunc to each http err code string.
+// usage:
+// 	beego.ErrorHandler("404",NotFound)
+//	beego.ErrorHandler("500",InternalServerError)
+func ErrorHandler(code string, h http.HandlerFunc) *App {
+	ErrorMaps[code] = &errorInfo{
+		errorType: errorTypeHandler,
+		handler:   h,
+		method:    code,
+	}
+	return BeeApp
+}
+
+// ErrorController registers ControllerInterface to each http err code string.
+// usage:
+// 	beego.ErrorController(&controllers.ErrorController{})
+func ErrorController(c ControllerInterface) *App {
+	reflectVal := reflect.ValueOf(c)
+	rt := reflectVal.Type()
+	ct := reflect.Indirect(reflectVal).Type()
+	for i := 0; i < rt.NumMethod(); i++ {
+		methodName := rt.Method(i).Name
+		if !utils.InSlice(methodName, exceptMethod) && strings.HasPrefix(methodName, "Error") {
+			errName := strings.TrimPrefix(methodName, "Error")
+			ErrorMaps[errName] = &errorInfo{
+				errorType:      errorTypeController,
+				controllerType: ct,
+				method:         methodName,
+			}
+		}
+	}
+	return BeeApp
+}
+
+// Exception Write HttpStatus with errCode and Exec error handler if exist.
+func Exception(errCode uint64, ctx *context.Context) {
+	exception(strconv.FormatUint(errCode, 10), ctx)
+}
+
+// show error string as simple text message.
+// if error string is empty, show 503 or 500 error as default.
+func exception(errCode string, ctx *context.Context) {
+	atoi := func(code string) int {
+		v, err := strconv.Atoi(code)
+		if err == nil {
+			return v
+		}
+		if ctx.Output.Status == 0 {
+			return 503
+		}
+		return ctx.Output.Status
+	}
+
+	for _, ec := range []string{errCode, "503", "500"} {
+		if h, ok := ErrorMaps[ec]; ok {
+			executeError(h, ctx, atoi(ec))
+			return
+		}
+	}
+	//if 50x error has been removed from errorMap
+	ctx.ResponseWriter.WriteHeader(atoi(errCode))
+	ctx.WriteString(errCode)
+}
+
+func executeError(err *errorInfo, ctx *context.Context, code int) {
+	//make sure to log the error in the access log
+	LogAccess(ctx, nil, code)
+
+	if err.errorType == errorTypeHandler {
+		ctx.ResponseWriter.WriteHeader(code)
+		err.handler(ctx.ResponseWriter, ctx.Request)
+		return
+	}
+	if err.errorType == errorTypeController {
+		ctx.Output.SetStatus(code)
+		//Invoke the request handler
+		vc := reflect.New(err.controllerType)
+		execController, ok := vc.Interface().(ControllerInterface)
+		if !ok {
+			panic("controller is not ControllerInterface")
+		}
+		//call the controller init function
+		execController.Init(ctx, err.controllerType.Name(), err.method, vc.Interface())
+
+		//call prepare function
+		execController.Prepare()
+
+		execController.URLMapping()
+
+		method := vc.MethodByName(err.method)
+		method.Call([]reflect.Value{})
+
+		//render template
+		if BConfig.WebConfig.AutoRender {
+			if err := execController.Render(); err != nil {
+				panic(err)
+			}
+		}
+
+		// finish all runrouter. release resource
+		execController.Finish()
+	}
+}

pkg/error_test.go

@@ -0,0 +1,88 @@
+// Copyright 2016 beego Author. All Rights Reserved.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//      http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package beego
+
+import (
+	"net/http"
+	"net/http/httptest"
+	"strconv"
+	"strings"
+	"testing"
+)
+
+type errorTestController struct {
+	Controller
+}
+
+const parseCodeError = "parse code error"
+
+func (ec *errorTestController) Get() {
+	errorCode, err := ec.GetInt("code")
+	if err != nil {
+		ec.Abort(parseCodeError)
+	}
+	if errorCode != 0 {
+		ec.CustomAbort(errorCode, ec.GetString("code"))
+	}
+	ec.Abort("404")
+}
+
+func TestErrorCode_01(t *testing.T) {
+	registerDefaultErrorHandler()
+	for k := range ErrorMaps {
+		r, _ := http.NewRequest("GET", "/error?code="+k, nil)
+		w := httptest.NewRecorder()
+
+		handler := NewControllerRegister()
+		handler.Add("/error", &errorTestController{})
+		handler.ServeHTTP(w, r)
+		code, _ := strconv.Atoi(k)
+		if w.Code != code {
+			t.Fail()
+		}
+		if !strings.Contains(w.Body.String(), http.StatusText(code)) {
+			t.Fail()
+		}
+	}
+}
+
+func TestErrorCode_02(t *testing.T) {
+	registerDefaultErrorHandler()
+	r, _ := http.NewRequest("GET", "/error?code=0", nil)
+	w := httptest.NewRecorder()
+
+	handler := NewControllerRegister()
+	handler.Add("/error", &errorTestController{})
+	handler.ServeHTTP(w, r)
+	if w.Code != 404 {
+		t.Fail()
+	}
+}
+
+func TestErrorCode_03(t *testing.T) {
+	registerDefaultErrorHandler()
+	r, _ := http.NewRequest("GET", "/error?code=panic", nil)
+	w := httptest.NewRecorder()
+
+	handler := NewControllerRegister()
+	handler.Add("/error", &errorTestController{})
+	handler.ServeHTTP(w, r)
+	if w.Code != 200 {
+		t.Fail()
+	}
+	if w.Body.String() != parseCodeError {
+		t.Fail()
+	}
+}

pkg/filter.go

@@ -0,0 +1,44 @@
+// Copyright 2014 beego Author. All Rights Reserved.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//      http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package beego
+
+import "github.com/astaxie/beego/context"
+
+// FilterFunc defines a filter function which is invoked before the controller handler is executed.
+type FilterFunc func(*context.Context)
+
+// FilterRouter defines a filter operation which is invoked before the controller handler is executed.
+// It can match the URL against a pattern, and execute a filter function
+// when a request with a matching URL arrives.
+type FilterRouter struct {
+	filterFunc     FilterFunc
+	tree           *Tree
+	pattern        string
+	returnOnOutput bool
+	resetParams    bool
+}
+
+// ValidRouter checks if the current request is matched by this filter.
+// If the request is matched, the values of the URL parameters defined
+// by the filter pattern are also returned.
+func (f *FilterRouter) ValidRouter(url string, ctx *context.Context) bool {
+	isOk := f.tree.Match(url, ctx)
+	if isOk != nil {
+		if b, ok := isOk.(bool); ok {
+			return b
+		}
+	}
+	return false
+}

pkg/filter_test.go

@@ -0,0 +1,68 @@
+// Copyright 2014 beego Author. All Rights Reserved.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//      http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package beego
+
+import (
+	"net/http"
+	"net/http/httptest"
+	"testing"
+
+	"github.com/astaxie/beego/context"
+)
+
+var FilterUser = func(ctx *context.Context) {
+	ctx.Output.Body([]byte("i am " + ctx.Input.Param(":last") + ctx.Input.Param(":first")))
+}
+
+func TestFilter(t *testing.T) {
+	r, _ := http.NewRequest("GET", "/person/asta/Xie", nil)
+	w := httptest.NewRecorder()
+	handler := NewControllerRegister()
+	handler.InsertFilter("/person/:last/:first", BeforeRouter, FilterUser)
+	handler.Add("/person/:last/:first", &TestController{})
+	handler.ServeHTTP(w, r)
+	if w.Body.String() != "i am astaXie" {
+		t.Errorf("user define func can't run")
+	}
+}
+
+var FilterAdminUser = func(ctx *context.Context) {
+	ctx.Output.Body([]byte("i am admin"))
+}
+
+// Filter pattern /admin/:all
+// all url like    /admin/    /admin/xie    will all get filter
+
+func TestPatternTwo(t *testing.T) {
+	r, _ := http.NewRequest("GET", "/admin/", nil)
+	w := httptest.NewRecorder()
+	handler := NewControllerRegister()
+	handler.InsertFilter("/admin/?:all", BeforeRouter, FilterAdminUser)
+	handler.ServeHTTP(w, r)
+	if w.Body.String() != "i am admin" {
+		t.Errorf("filter /admin/ can't run")
+	}
+}
+
+func TestPatternThree(t *testing.T) {
+	r, _ := http.NewRequest("GET", "/admin/astaxie", nil)
+	w := httptest.NewRecorder()
+	handler := NewControllerRegister()
+	handler.InsertFilter("/admin/:all", BeforeRouter, FilterAdminUser)
+	handler.ServeHTTP(w, r)
+	if w.Body.String() != "i am admin" {
+		t.Errorf("filter /admin/astaxie can't run")
+	}
+}

pkg/flash.go

@@ -0,0 +1,110 @@
+// Copyright 2014 beego Author. All Rights Reserved.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//      http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package beego
+
+import (
+	"fmt"
+	"net/url"
+	"strings"
+)
+
+// FlashData is a tools to maintain data when using across request.
+type FlashData struct {
+	Data map[string]string
+}
+
+// NewFlash return a new empty FlashData struct.
+func NewFlash() *FlashData {
+	return &FlashData{
+		Data: make(map[string]string),
+	}
+}
+
+// Set message to flash
+func (fd *FlashData) Set(key string, msg string, args ...interface{}) {
+	if len(args) == 0 {
+		fd.Data[key] = msg
+	} else {
+		fd.Data[key] = fmt.Sprintf(msg, args...)
+	}
+}
+
+// Success writes success message to flash.
+func (fd *FlashData) Success(msg string, args ...interface{}) {
+	if len(args) == 0 {
+		fd.Data["success"] = msg
+	} else {
+		fd.Data["success"] = fmt.Sprintf(msg, args...)
+	}
+}
+
+// Notice writes notice message to flash.
+func (fd *FlashData) Notice(msg string, args ...interface{}) {
+	if len(args) == 0 {
+		fd.Data["notice"] = msg
+	} else {
+		fd.Data["notice"] = fmt.Sprintf(msg, args...)
+	}
+}
+
+// Warning writes warning message to flash.
+func (fd *FlashData) Warning(msg string, args ...interface{}) {
+	if len(args) == 0 {
+		fd.Data["warning"] = msg
+	} else {
+		fd.Data["warning"] = fmt.Sprintf(msg, args...)
+	}
+}
+
+// Error writes error message to flash.
+func (fd *FlashData) Error(msg string, args ...interface{}) {
+	if len(args) == 0 {
+		fd.Data["error"] = msg
+	} else {
+		fd.Data["error"] = fmt.Sprintf(msg, args...)
+	}
+}
+
+// Store does the saving operation of flash data.
+// the data are encoded and saved in cookie.
+func (fd *FlashData) Store(c *Controller) {
+	c.Data["flash"] = fd.Data
+	var flashValue string
+	for key, value := range fd.Data {
+		flashValue += "\x00" + key + "\x23" + BConfig.WebConfig.FlashSeparator + "\x23" + value + "\x00"
+	}
+	c.Ctx.SetCookie(BConfig.WebConfig.FlashName, url.QueryEscape(flashValue), 0, "/")
+}
+
+// ReadFromRequest parsed flash data from encoded values in cookie.
+func ReadFromRequest(c *Controller) *FlashData {
+	flash := NewFlash()
+	if cookie, err := c.Ctx.Request.Cookie(BConfig.WebConfig.FlashName); err == nil {
+		v, _ := url.QueryUnescape(cookie.Value)
+		vals := strings.Split(v, "\x00")
+		for _, v := range vals {
+			if len(v) > 0 {
+				kv := strings.Split(v, "\x23"+BConfig.WebConfig.FlashSeparator+"\x23")
+				if len(kv) == 2 {
+					flash.Data[kv[0]] = kv[1]
+				}
+			}
+		}
+		//read one time then delete it
+		c.Ctx.SetCookie(BConfig.WebConfig.FlashName, "", -1, "/")
+	}
+	c.Data["flash"] = flash.Data
+	return flash
+}

pkg/flash_test.go

@@ -0,0 +1,54 @@
+// Copyright 2014 beego Author. All Rights Reserved.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//      http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package beego
+
+import (
+	"net/http"
+	"net/http/httptest"
+	"strings"
+	"testing"
+)
+
+type TestFlashController struct {
+	Controller
+}
+
+func (t *TestFlashController) TestWriteFlash() {
+	flash := NewFlash()
+	flash.Notice("TestFlashString")
+	flash.Store(&t.Controller)
+	// we choose to serve json because we don't want to load a template html file
+	t.ServeJSON(true)
+}
+
+func TestFlashHeader(t *testing.T) {
+	// create fake GET request
+	r, _ := http.NewRequest("GET", "/", nil)
+	w := httptest.NewRecorder()
+
+	// setup the handler
+	handler := NewControllerRegister()
+	handler.Add("/", &TestFlashController{}, "get:TestWriteFlash")
+	handler.ServeHTTP(w, r)
+
+	// get the Set-Cookie value
+	sc := w.Header().Get("Set-Cookie")
+	// match for the expected header
+	res := strings.Contains(sc, "BEEGO_FLASH=%00notice%23BEEGOFLASH%23TestFlashString%00")
+	// validate the assertion
+	if !res {
+		t.Errorf("TestFlashHeader() unable to validate flash message")
+	}
+}

pkg/fs.go

@@ -0,0 +1,74 @@
+package beego
+
+import (
+	"net/http"
+	"os"
+	"path/filepath"
+)
+
+type FileSystem struct {
+}
+
+func (d FileSystem) Open(name string) (http.File, error) {
+	return os.Open(name)
+}
+
+// Walk walks the file tree rooted at root in filesystem, calling walkFn for each file or
+// directory in the tree, including root. All errors that arise visiting files
+// and directories are filtered by walkFn.
+func Walk(fs http.FileSystem, root string, walkFn filepath.WalkFunc) error {
+
+	f, err := fs.Open(root)
+	if err != nil {
+		return err
+	}
+	info, err := f.Stat()
+	if err != nil {
+		err = walkFn(root, nil, err)
+	} else {
+		err = walk(fs, root, info, walkFn)
+	}
+	if err == filepath.SkipDir {
+		return nil
+	}
+	return err
+}
+
+// walk recursively descends path, calling walkFn.
+func walk(fs http.FileSystem, path string, info os.FileInfo, walkFn filepath.WalkFunc) error {
+	var err error
+	if !info.IsDir() {
+		return walkFn(path, info, nil)
+	}
+
+	dir, err := fs.Open(path)
+	if err != nil {
+		if err1 := walkFn(path, info, err); err1 != nil {
+			return err1
+		}
+		return err
+	}
+	defer dir.Close()
+	dirs, err := dir.Readdir(-1)
+	err1 := walkFn(path, info, err)
+	// If err != nil, walk can't walk into this directory.
+	// err1 != nil means walkFn want walk to skip this directory or stop walking.
+	// Therefore, if one of err and err1 isn't nil, walk will return.
+	if err != nil || err1 != nil {
+		// The caller's behavior is controlled by the return value, which is decided
+		// by walkFn. walkFn may ignore err and return nil.
+		// If walkFn returns SkipDir, it will be handled by the caller.
+		// So walk should return whatever walkFn returns.
+		return err1
+	}
+
+	for _, fileInfo := range dirs {
+		filename := filepath.Join(path, fileInfo.Name())
+		if err = walk(fs, filename, fileInfo, walkFn); err != nil {
+			if !fileInfo.IsDir() || err != filepath.SkipDir {
+				return err
+			}
+		}
+	}
+	return nil
+}

pkg/grace/grace.go

@@ -0,0 +1,166 @@
+// Copyright 2014 beego Author. All Rights Reserved.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//      http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+// Package grace use to hot reload
+// Description: http://grisha.org/blog/2014/06/03/graceful-restart-in-golang/
+//
+// Usage:
+//
+// import(
+//   "log"
+//	 "net/http"
+//	 "os"
+//
+//   "github.com/astaxie/beego/grace"
+// )
+//
+//  func handler(w http.ResponseWriter, r *http.Request) {
+//	  w.Write([]byte("WORLD!"))
+//  }
+//
+//  func main() {
+//      mux := http.NewServeMux()
+//      mux.HandleFunc("/hello", handler)
+//
+//	    err := grace.ListenAndServe("localhost:8080", mux)
+//      if err != nil {
+//		   log.Println(err)
+//	    }
+//      log.Println("Server on 8080 stopped")
+//	     os.Exit(0)
+//    }
+package grace
+
+import (
+	"flag"
+	"net/http"
+	"os"
+	"strings"
+	"sync"
+	"syscall"
+	"time"
+)
+
+const (
+	// PreSignal is the position to add filter before signal
+	PreSignal = iota
+	// PostSignal is the position to add filter after signal
+	PostSignal
+	// StateInit represent the application inited
+	StateInit
+	// StateRunning represent the application is running
+	StateRunning
+	// StateShuttingDown represent the application is shutting down
+	StateShuttingDown
+	// StateTerminate represent the application is killed
+	StateTerminate
+)
+
+var (
+	regLock              *sync.Mutex
+	runningServers       map[string]*Server
+	runningServersOrder  []string
+	socketPtrOffsetMap   map[string]uint
+	runningServersForked bool
+
+	// DefaultReadTimeOut is the HTTP read timeout
+	DefaultReadTimeOut time.Duration
+	// DefaultWriteTimeOut is the HTTP Write timeout
+	DefaultWriteTimeOut time.Duration
+	// DefaultMaxHeaderBytes is the Max HTTP Header size, default is 0, no limit
+	DefaultMaxHeaderBytes int
+	// DefaultTimeout is the shutdown server's timeout. default is 60s
+	DefaultTimeout = 60 * time.Second
+
+	isChild     bool
+	socketOrder string
+
+	hookableSignals []os.Signal
+)
+
+func init() {
+	flag.BoolVar(&isChild, "graceful", false, "listen on open fd (after forking)")
+	flag.StringVar(&socketOrder, "socketorder", "", "previous initialization order - used when more than one listener was started")
+
+	regLock = &sync.Mutex{}
+	runningServers = make(map[string]*Server)
+	runningServersOrder = []string{}
+	socketPtrOffsetMap = make(map[string]uint)
+
+	hookableSignals = []os.Signal{
+		syscall.SIGHUP,
+		syscall.SIGINT,
+		syscall.SIGTERM,
+	}
+}
+
+// NewServer returns a new graceServer.
+func NewServer(addr string, handler http.Handler) (srv *Server) {
+	regLock.Lock()
+	defer regLock.Unlock()
+
+	if !flag.Parsed() {
+		flag.Parse()
+	}
+	if len(socketOrder) > 0 {
+		for i, addr := range strings.Split(socketOrder, ",") {
+			socketPtrOffsetMap[addr] = uint(i)
+		}
+	} else {
+		socketPtrOffsetMap[addr] = uint(len(runningServersOrder))
+	}
+
+	srv = &Server{
+		sigChan: make(chan os.Signal),
+		isChild: isChild,
+		SignalHooks: map[int]map[os.Signal][]func(){
+			PreSignal: {
+				syscall.SIGHUP:  {},
+				syscall.SIGINT:  {},
+				syscall.SIGTERM: {},
+			},
+			PostSignal: {
+				syscall.SIGHUP:  {},
+				syscall.SIGINT:  {},
+				syscall.SIGTERM: {},
+			},
+		},
+		state:        StateInit,
+		Network:      "tcp",
+		terminalChan: make(chan error), //no cache channel
+	}
+	srv.Server = &http.Server{
+		Addr:           addr,
+		ReadTimeout:    DefaultReadTimeOut,
+		WriteTimeout:   DefaultWriteTimeOut,
+		MaxHeaderBytes: DefaultMaxHeaderBytes,
+		Handler:        handler,
+	}
+
+	runningServersOrder = append(runningServersOrder, addr)
+	runningServers[addr] = srv
+	return srv
+}
+
+// ListenAndServe refer http.ListenAndServe
+func ListenAndServe(addr string, handler http.Handler) error {
+	server := NewServer(addr, handler)
+	return server.ListenAndServe()
+}
+
+// ListenAndServeTLS refer http.ListenAndServeTLS
+func ListenAndServeTLS(addr string, certFile string, keyFile string, handler http.Handler) error {
+	server := NewServer(addr, handler)
+	return server.ListenAndServeTLS(certFile, keyFile)
+}

pkg/grace/server.go

@@ -0,0 +1,356 @@
+package grace
+
+import (
+	"context"
+	"crypto/tls"
+	"crypto/x509"
+	"fmt"
+	"io/ioutil"
+	"log"
+	"net"
+	"net/http"
+	"os"
+	"os/exec"
+	"os/signal"
+	"strings"
+	"syscall"
+	"time"
+)
+
+// Server embedded http.Server
+type Server struct {
+	*http.Server
+	ln           net.Listener
+	SignalHooks  map[int]map[os.Signal][]func()
+	sigChan      chan os.Signal
+	isChild      bool
+	state        uint8
+	Network      string
+	terminalChan chan error
+}
+
+// Serve accepts incoming connections on the Listener l,
+// creating a new service goroutine for each.
+// The service goroutines read requests and then call srv.Handler to reply to them.
+func (srv *Server) Serve() (err error) {
+	srv.state = StateRunning
+	defer func() { srv.state = StateTerminate }()
+
+	// When Shutdown is called, Serve, ListenAndServe, and ListenAndServeTLS
+	// immediately return ErrServerClosed. Make sure the program doesn't exit
+	// and waits instead for Shutdown to return.
+	if err = srv.Server.Serve(srv.ln); err != nil && err != http.ErrServerClosed {
+		log.Println(syscall.Getpid(), "Server.Serve() error:", err)
+		return err
+	}
+
+	log.Println(syscall.Getpid(), srv.ln.Addr(), "Listener closed.")
+	// wait for Shutdown to return
+	if shutdownErr := <-srv.terminalChan; shutdownErr != nil {
+		return shutdownErr
+	}
+	return
+}
+
+// ListenAndServe listens on the TCP network address srv.Addr and then calls Serve
+// to handle requests on incoming connections. If srv.Addr is blank, ":http" is
+// used.
+func (srv *Server) ListenAndServe() (err error) {
+	addr := srv.Addr
+	if addr == "" {
+		addr = ":http"
+	}
+
+	go srv.handleSignals()
+
+	srv.ln, err = srv.getListener(addr)
+	if err != nil {
+		log.Println(err)
+		return err
+	}
+
+	if srv.isChild {
+		process, err := os.FindProcess(os.Getppid())
+		if err != nil {
+			log.Println(err)
+			return err
+		}
+		err = process.Signal(syscall.SIGTERM)
+		if err != nil {
+			return err
+		}
+	}
+
+	log.Println(os.Getpid(), srv.Addr)
+	return srv.Serve()
+}
+
+// ListenAndServeTLS listens on the TCP network address srv.Addr and then calls
+// Serve to handle requests on incoming TLS connections.
+//
+// Filenames containing a certificate and matching private key for the server must
+// be provided. If the certificate is signed by a certificate authority, the
+// certFile should be the concatenation of the server's certificate followed by the
+// CA's certificate.
+//
+// If srv.Addr is blank, ":https" is used.
+func (srv *Server) ListenAndServeTLS(certFile, keyFile string) (err error) {
+	addr := srv.Addr
+	if addr == "" {
+		addr = ":https"
+	}
+
+	if srv.TLSConfig == nil {
+		srv.TLSConfig = &tls.Config{}
+	}
+	if srv.TLSConfig.NextProtos == nil {
+		srv.TLSConfig.NextProtos = []string{"http/1.1"}
+	}
+
+	srv.TLSConfig.Certificates = make([]tls.Certificate, 1)
+	srv.TLSConfig.Certificates[0], err = tls.LoadX509KeyPair(certFile, keyFile)
+	if err != nil {
+		return
+	}
+
+	go srv.handleSignals()
+
+	ln, err := srv.getListener(addr)
+	if err != nil {
+		log.Println(err)
+		return err
+	}
+	srv.ln = tls.NewListener(tcpKeepAliveListener{ln.(*net.TCPListener)}, srv.TLSConfig)
+
+	if srv.isChild {
+		process, err := os.FindProcess(os.Getppid())
+		if err != nil {
+			log.Println(err)
+			return err
+		}
+		err = process.Signal(syscall.SIGTERM)
+		if err != nil {
+			return err
+		}
+	}
+
+	log.Println(os.Getpid(), srv.Addr)
+	return srv.Serve()
+}
+
+// ListenAndServeMutualTLS listens on the TCP network address srv.Addr and then calls
+// Serve to handle requests on incoming mutual TLS connections.
+func (srv *Server) ListenAndServeMutualTLS(certFile, keyFile, trustFile string) (err error) {
+	addr := srv.Addr
+	if addr == "" {
+		addr = ":https"
+	}
+
+	if srv.TLSConfig == nil {
+		srv.TLSConfig = &tls.Config{}
+	}
+	if srv.TLSConfig.NextProtos == nil {
+		srv.TLSConfig.NextProtos = []string{"http/1.1"}
+	}
+
+	srv.TLSConfig.Certificates = make([]tls.Certificate, 1)
+	srv.TLSConfig.Certificates[0], err = tls.LoadX509KeyPair(certFile, keyFile)
+	if err != nil {
+		return
+	}
+	srv.TLSConfig.ClientAuth = tls.RequireAndVerifyClientCert
+	pool := x509.NewCertPool()
+	data, err := ioutil.ReadFile(trustFile)
+	if err != nil {
+		log.Println(err)
+		return err
+	}
+	pool.AppendCertsFromPEM(data)
+	srv.TLSConfig.ClientCAs = pool
+	log.Println("Mutual HTTPS")
+	go srv.handleSignals()
+
+	ln, err := srv.getListener(addr)
+	if err != nil {
+		log.Println(err)
+		return err
+	}
+	srv.ln = tls.NewListener(tcpKeepAliveListener{ln.(*net.TCPListener)}, srv.TLSConfig)
+
+	if srv.isChild {
+		process, err := os.FindProcess(os.Getppid())
+		if err != nil {
+			log.Println(err)
+			return err
+		}
+		err = process.Signal(syscall.SIGTERM)
+		if err != nil {
+			return err
+		}
+	}
+
+	log.Println(os.Getpid(), srv.Addr)
+	return srv.Serve()
+}
+
+// getListener either opens a new socket to listen on, or takes the acceptor socket
+// it got passed when restarted.
+func (srv *Server) getListener(laddr string) (l net.Listener, err error) {
+	if srv.isChild {
+		var ptrOffset uint
+		if len(socketPtrOffsetMap) > 0 {
+			ptrOffset = socketPtrOffsetMap[laddr]
+			log.Println("laddr", laddr, "ptr offset", socketPtrOffsetMap[laddr])
+		}
+
+		f := os.NewFile(uintptr(3+ptrOffset), "")
+		l, err = net.FileListener(f)
+		if err != nil {
+			err = fmt.Errorf("net.FileListener error: %v", err)
+			return
+		}
+	} else {
+		l, err = net.Listen(srv.Network, laddr)
+		if err != nil {
+			err = fmt.Errorf("net.Listen error: %v", err)
+			return
+		}
+	}
+	return
+}
+
+type tcpKeepAliveListener struct {
+	*net.TCPListener
+}
+
+func (ln tcpKeepAliveListener) Accept() (c net.Conn, err error) {
+	tc, err := ln.AcceptTCP()
+	if err != nil {
+		return
+	}
+	tc.SetKeepAlive(true)
+	tc.SetKeepAlivePeriod(3 * time.Minute)
+	return tc, nil
+}
+
+// handleSignals listens for os Signals and calls any hooked in function that the
+// user had registered with the signal.
+func (srv *Server) handleSignals() {
+	var sig os.Signal
+
+	signal.Notify(
+		srv.sigChan,
+		hookableSignals...,
+	)
+
+	pid := syscall.Getpid()
+	for {
+		sig = <-srv.sigChan
+		srv.signalHooks(PreSignal, sig)
+		switch sig {
+		case syscall.SIGHUP:
+			log.Println(pid, "Received SIGHUP. forking.")
+			err := srv.fork()
+			if err != nil {
+				log.Println("Fork err:", err)
+			}
+		case syscall.SIGINT:
+			log.Println(pid, "Received SIGINT.")
+			srv.shutdown()
+		case syscall.SIGTERM:
+			log.Println(pid, "Received SIGTERM.")
+			srv.shutdown()
+		default:
+			log.Printf("Received %v: nothing i care about...\n", sig)
+		}
+		srv.signalHooks(PostSignal, sig)
+	}
+}
+
+func (srv *Server) signalHooks(ppFlag int, sig os.Signal) {
+	if _, notSet := srv.SignalHooks[ppFlag][sig]; !notSet {
+		return
+	}
+	for _, f := range srv.SignalHooks[ppFlag][sig] {
+		f()
+	}
+}
+
+// shutdown closes the listener so that no new connections are accepted. it also
+// starts a goroutine that will serverTimeout (stop all running requests) the server
+// after DefaultTimeout.
+func (srv *Server) shutdown() {
+	if srv.state != StateRunning {
+		return
+	}
+
+	srv.state = StateShuttingDown
+	log.Println(syscall.Getpid(), "Waiting for connections to finish...")
+	ctx := context.Background()
+	if DefaultTimeout >= 0 {
+		var cancel context.CancelFunc
+		ctx, cancel = context.WithTimeout(context.Background(), DefaultTimeout)
+		defer cancel()
+	}
+	srv.terminalChan <- srv.Server.Shutdown(ctx)
+}
+
+func (srv *Server) fork() (err error) {
+	regLock.Lock()
+	defer regLock.Unlock()
+	if runningServersForked {
+		return
+	}
+	runningServersForked = true
+
+	var files = make([]*os.File, len(runningServers))
+	var orderArgs = make([]string, len(runningServers))
+	for _, srvPtr := range runningServers {
+		f, _ := srvPtr.ln.(*net.TCPListener).File()
+		files[socketPtrOffsetMap[srvPtr.Server.Addr]] = f
+		orderArgs[socketPtrOffsetMap[srvPtr.Server.Addr]] = srvPtr.Server.Addr
+	}
+
+	log.Println(files)
+	path := os.Args[0]
+	var args []string
+	if len(os.Args) > 1 {
+		for _, arg := range os.Args[1:] {
+			if arg == "-graceful" {
+				break
+			}
+			args = append(args, arg)
+		}
+	}
+	args = append(args, "-graceful")
+	if len(runningServers) > 1 {
+		args = append(args, fmt.Sprintf(`-socketorder=%s`, strings.Join(orderArgs, ",")))
+		log.Println(args)
+	}
+	cmd := exec.Command(path, args...)
+	cmd.Stdout = os.Stdout
+	cmd.Stderr = os.Stderr
+	cmd.ExtraFiles = files
+	err = cmd.Start()
+	if err != nil {
+		log.Fatalf("Restart: Failed to launch, error: %v", err)
+	}
+
+	return
+}
+
+// RegisterSignalHook registers a function to be run PreSignal or PostSignal for a given signal.
+func (srv *Server) RegisterSignalHook(ppFlag int, sig os.Signal, f func()) (err error) {
+	if ppFlag != PreSignal && ppFlag != PostSignal {
+		err = fmt.Errorf("Invalid ppFlag argument. Must be either grace.PreSignal or grace.PostSignal")
+		return
+	}
+	for _, s := range hookableSignals {
+		if s == sig {
+			srv.SignalHooks[ppFlag][sig] = append(srv.SignalHooks[ppFlag][sig], f)
+			return
+		}
+	}
+	err = fmt.Errorf("Signal '%v' is not supported", sig)
+	return
+}

pkg/hooks.go

@@ -0,0 +1,104 @@
+package beego
+
+import (
+	"encoding/json"
+	"mime"
+	"net/http"
+	"path/filepath"
+
+	"github.com/astaxie/beego/context"
+	"github.com/astaxie/beego/logs"
+	"github.com/astaxie/beego/session"
+)
+
+// register MIME type with content type
+func registerMime() error {
+	for k, v := range mimemaps {
+		mime.AddExtensionType(k, v)
+	}
+	return nil
+}
+
+// register default error http handlers, 404,401,403,500 and 503.
+func registerDefaultErrorHandler() error {
+	m := map[string]func(http.ResponseWriter, *http.Request){
+		"401": unauthorized,
+		"402": paymentRequired,
+		"403": forbidden,
+		"404": notFound,
+		"405": methodNotAllowed,
+		"500": internalServerError,
+		"501": notImplemented,
+		"502": badGateway,
+		"503": serviceUnavailable,
+		"504": gatewayTimeout,
+		"417": invalidxsrf,
+		"422": missingxsrf,
+		"413": payloadTooLarge,
+	}
+	for e, h := range m {
+		if _, ok := ErrorMaps[e]; !ok {
+			ErrorHandler(e, h)
+		}
+	}
+	return nil
+}
+
+func registerSession() error {
+	if BConfig.WebConfig.Session.SessionOn {
+		var err error
+		sessionConfig := AppConfig.String("sessionConfig")
+		conf := new(session.ManagerConfig)
+		if sessionConfig == "" {
+			conf.CookieName = BConfig.WebConfig.Session.SessionName
+			conf.EnableSetCookie = BConfig.WebConfig.Session.SessionAutoSetCookie
+			conf.Gclifetime = BConfig.WebConfig.Session.SessionGCMaxLifetime
+			conf.Secure = BConfig.Listen.EnableHTTPS
+			conf.CookieLifeTime = BConfig.WebConfig.Session.SessionCookieLifeTime
+			conf.ProviderConfig = filepath.ToSlash(BConfig.WebConfig.Session.SessionProviderConfig)
+			conf.DisableHTTPOnly = BConfig.WebConfig.Session.SessionDisableHTTPOnly
+			conf.Domain = BConfig.WebConfig.Session.SessionDomain
+			conf.EnableSidInHTTPHeader = BConfig.WebConfig.Session.SessionEnableSidInHTTPHeader
+			conf.SessionNameInHTTPHeader = BConfig.WebConfig.Session.SessionNameInHTTPHeader
+			conf.EnableSidInURLQuery = BConfig.WebConfig.Session.SessionEnableSidInURLQuery
+		} else {
+			if err = json.Unmarshal([]byte(sessionConfig), conf); err != nil {
+				return err
+			}
+		}
+		if GlobalSessions, err = session.NewManager(BConfig.WebConfig.Session.SessionProvider, conf); err != nil {
+			return err
+		}
+		go GlobalSessions.GC()
+	}
+	return nil
+}
+
+func registerTemplate() error {
+	defer lockViewPaths()
+	if err := AddViewPath(BConfig.WebConfig.ViewsPath); err != nil {
+		if BConfig.RunMode == DEV {
+			logs.Warn(err)
+		}
+		return err
+	}
+	return nil
+}
+
+func registerAdmin() error {
+	if BConfig.Listen.EnableAdmin {
+		go beeAdminApp.Run()
+	}
+	return nil
+}
+
+func registerGzip() error {
+	if BConfig.EnableGzip {
+		context.InitGzip(
+			AppConfig.DefaultInt("gzipMinLength", -1),
+			AppConfig.DefaultInt("gzipCompressLevel", -1),
+			AppConfig.DefaultStrings("includedMethods", []string{"GET"}),
+		)
+	}
+	return nil
+}

pkg/httplib/README.md

@@ -0,0 +1,97 @@
+# httplib
+httplib is an libs help you to curl remote url.
+
+# How to use?
+
+## GET
+you can use Get to crawl data.
+
+	import "github.com/astaxie/beego/httplib"
+	
+	str, err := httplib.Get("http://beego.me/").String()
+	if err != nil {
+        	// error
+	}
+	fmt.Println(str)
+	
+## POST
+POST data to remote url
+
+	req := httplib.Post("http://beego.me/")
+	req.Param("username","astaxie")
+	req.Param("password","123456")
+	str, err := req.String()
+	if err != nil {
+        	// error
+	}
+	fmt.Println(str)
+
+## Set timeout
+
+The default timeout is `60` seconds, function prototype:
+
+	SetTimeout(connectTimeout, readWriteTimeout time.Duration)
+
+Example:
+
+	// GET
+	httplib.Get("http://beego.me/").SetTimeout(100 * time.Second, 30 * time.Second)
+	
+	// POST
+	httplib.Post("http://beego.me/").SetTimeout(100 * time.Second, 30 * time.Second)
+
+
+## Debug
+
+If you want to debug the request info, set the debug on
+
+	httplib.Get("http://beego.me/").Debug(true)
+	
+## Set HTTP Basic Auth
+
+	str, err := Get("http://beego.me/").SetBasicAuth("user", "passwd").String()
+	if err != nil {
+        	// error
+	}
+	fmt.Println(str)
+	
+## Set HTTPS
+
+If request url is https, You can set the client support TSL:
+
+	httplib.SetTLSClientConfig(&tls.Config{InsecureSkipVerify: true})
+	
+More info about the `tls.Config` please visit http://golang.org/pkg/crypto/tls/#Config	
+
+## Set HTTP Version
+
+some servers need to specify the protocol version of HTTP
+
+	httplib.Get("http://beego.me/").SetProtocolVersion("HTTP/1.1")
+	
+## Set Cookie
+
+some http request need setcookie. So set it like this:
+
+	cookie := &http.Cookie{}
+	cookie.Name = "username"
+	cookie.Value  = "astaxie"
+	httplib.Get("http://beego.me/").SetCookie(cookie)
+
+## Upload file
+
+httplib support mutil file upload, use `req.PostFile()`
+
+	req := httplib.Post("http://beego.me/")
+	req.Param("username","astaxie")
+	req.PostFile("uploadfile1", "httplib.pdf")
+	str, err := req.String()
+	if err != nil {
+        	// error
+	}
+	fmt.Println(str)
+
+
+See godoc for further documentation and examples.
+
+* [godoc.org/github.com/astaxie/beego/httplib](https://godoc.org/github.com/astaxie/beego/httplib)

pkg/httplib/httplib.go

@@ -0,0 +1,654 @@
+// Copyright 2014 beego Author. All Rights Reserved.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//      http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+// Package httplib is used as http.Client
+// Usage:
+//
+// import "github.com/astaxie/beego/httplib"
+//
+//	b := httplib.Post("http://beego.me/")
+//	b.Param("username","astaxie")
+//	b.Param("password","123456")
+//	b.PostFile("uploadfile1", "httplib.pdf")
+//	b.PostFile("uploadfile2", "httplib.txt")
+//	str, err := b.String()
+//	if err != nil {
+//		t.Fatal(err)
+//	}
+//	fmt.Println(str)
+//
+//  more docs http://beego.me/docs/module/httplib.md
+package httplib
+
+import (
+	"bytes"
+	"compress/gzip"
+	"crypto/tls"
+	"encoding/json"
+	"encoding/xml"
+	"io"
+	"io/ioutil"
+	"log"
+	"mime/multipart"
+	"net"
+	"net/http"
+	"net/http/cookiejar"
+	"net/http/httputil"
+	"net/url"
+	"os"
+	"path"
+	"strings"
+	"sync"
+	"time"
+
+	"gopkg.in/yaml.v2"
+)
+
+var defaultSetting = BeegoHTTPSettings{
+	UserAgent:        "beegoServer",
+	ConnectTimeout:   60 * time.Second,
+	ReadWriteTimeout: 60 * time.Second,
+	Gzip:             true,
+	DumpBody:         true,
+}
+
+var defaultCookieJar http.CookieJar
+var settingMutex sync.Mutex
+
+// createDefaultCookie creates a global cookiejar to store cookies.
+func createDefaultCookie() {
+	settingMutex.Lock()
+	defer settingMutex.Unlock()
+	defaultCookieJar, _ = cookiejar.New(nil)
+}
+
+// SetDefaultSetting Overwrite default settings
+func SetDefaultSetting(setting BeegoHTTPSettings) {
+	settingMutex.Lock()
+	defer settingMutex.Unlock()
+	defaultSetting = setting
+}
+
+// NewBeegoRequest return *BeegoHttpRequest with specific method
+func NewBeegoRequest(rawurl, method string) *BeegoHTTPRequest {
+	var resp http.Response
+	u, err := url.Parse(rawurl)
+	if err != nil {
+		log.Println("Httplib:", err)
+	}
+	req := http.Request{
+		URL:        u,
+		Method:     method,
+		Header:     make(http.Header),
+		Proto:      "HTTP/1.1",
+		ProtoMajor: 1,
+		ProtoMinor: 1,
+	}
+	return &BeegoHTTPRequest{
+		url:     rawurl,
+		req:     &req,
+		params:  map[string][]string{},
+		files:   map[string]string{},
+		setting: defaultSetting,
+		resp:    &resp,
+	}
+}
+
+// Get returns *BeegoHttpRequest with GET method.
+func Get(url string) *BeegoHTTPRequest {
+	return NewBeegoRequest(url, "GET")
+}
+
+// Post returns *BeegoHttpRequest with POST method.
+func Post(url string) *BeegoHTTPRequest {
+	return NewBeegoRequest(url, "POST")
+}
+
+// Put returns *BeegoHttpRequest with PUT method.
+func Put(url string) *BeegoHTTPRequest {
+	return NewBeegoRequest(url, "PUT")
+}
+
+// Delete returns *BeegoHttpRequest DELETE method.
+func Delete(url string) *BeegoHTTPRequest {
+	return NewBeegoRequest(url, "DELETE")
+}
+
+// Head returns *BeegoHttpRequest with HEAD method.
+func Head(url string) *BeegoHTTPRequest {
+	return NewBeegoRequest(url, "HEAD")
+}
+
+// BeegoHTTPSettings is the http.Client setting
+type BeegoHTTPSettings struct {
+	ShowDebug        bool
+	UserAgent        string
+	ConnectTimeout   time.Duration
+	ReadWriteTimeout time.Duration
+	TLSClientConfig  *tls.Config
+	Proxy            func(*http.Request) (*url.URL, error)
+	Transport        http.RoundTripper
+	CheckRedirect    func(req *http.Request, via []*http.Request) error
+	EnableCookie     bool
+	Gzip             bool
+	DumpBody         bool
+	Retries          int // if set to -1 means will retry forever
+	RetryDelay       time.Duration
+}
+
+// BeegoHTTPRequest provides more useful methods for requesting one url than http.Request.
+type BeegoHTTPRequest struct {
+	url     string
+	req     *http.Request
+	params  map[string][]string
+	files   map[string]string
+	setting BeegoHTTPSettings
+	resp    *http.Response
+	body    []byte
+	dump    []byte
+}
+
+// GetRequest return the request object
+func (b *BeegoHTTPRequest) GetRequest() *http.Request {
+	return b.req
+}
+
+// Setting Change request settings
+func (b *BeegoHTTPRequest) Setting(setting BeegoHTTPSettings) *BeegoHTTPRequest {
+	b.setting = setting
+	return b
+}
+
+// SetBasicAuth sets the request's Authorization header to use HTTP Basic Authentication with the provided username and password.
+func (b *BeegoHTTPRequest) SetBasicAuth(username, password string) *BeegoHTTPRequest {
+	b.req.SetBasicAuth(username, password)
+	return b
+}
+
+// SetEnableCookie sets enable/disable cookiejar
+func (b *BeegoHTTPRequest) SetEnableCookie(enable bool) *BeegoHTTPRequest {
+	b.setting.EnableCookie = enable
+	return b
+}
+
+// SetUserAgent sets User-Agent header field
+func (b *BeegoHTTPRequest) SetUserAgent(useragent string) *BeegoHTTPRequest {
+	b.setting.UserAgent = useragent
+	return b
+}
+
+// Debug sets show debug or not when executing request.
+func (b *BeegoHTTPRequest) Debug(isdebug bool) *BeegoHTTPRequest {
+	b.setting.ShowDebug = isdebug
+	return b
+}
+
+// Retries sets Retries times.
+// default is 0 means no retried.
+// -1 means retried forever.
+// others means retried times.
+func (b *BeegoHTTPRequest) Retries(times int) *BeegoHTTPRequest {
+	b.setting.Retries = times
+	return b
+}
+
+func (b *BeegoHTTPRequest) RetryDelay(delay time.Duration) *BeegoHTTPRequest {
+	b.setting.RetryDelay = delay
+	return b
+}
+
+// DumpBody setting whether need to Dump the Body.
+func (b *BeegoHTTPRequest) DumpBody(isdump bool) *BeegoHTTPRequest {
+	b.setting.DumpBody = isdump
+	return b
+}
+
+// DumpRequest return the DumpRequest
+func (b *BeegoHTTPRequest) DumpRequest() []byte {
+	return b.dump
+}
+
+// SetTimeout sets connect time out and read-write time out for BeegoRequest.
+func (b *BeegoHTTPRequest) SetTimeout(connectTimeout, readWriteTimeout time.Duration) *BeegoHTTPRequest {
+	b.setting.ConnectTimeout = connectTimeout
+	b.setting.ReadWriteTimeout = readWriteTimeout
+	return b
+}
+
+// SetTLSClientConfig sets tls connection configurations if visiting https url.
+func (b *BeegoHTTPRequest) SetTLSClientConfig(config *tls.Config) *BeegoHTTPRequest {
+	b.setting.TLSClientConfig = config
+	return b
+}
+
+// Header add header item string in request.
+func (b *BeegoHTTPRequest) Header(key, value string) *BeegoHTTPRequest {
+	b.req.Header.Set(key, value)
+	return b
+}
+
+// SetHost set the request host
+func (b *BeegoHTTPRequest) SetHost(host string) *BeegoHTTPRequest {
+	b.req.Host = host
+	return b
+}
+
+// SetProtocolVersion Set the protocol version for incoming requests.
+// Client requests always use HTTP/1.1.
+func (b *BeegoHTTPRequest) SetProtocolVersion(vers string) *BeegoHTTPRequest {
+	if len(vers) == 0 {
+		vers = "HTTP/1.1"
+	}
+
+	major, minor, ok := http.ParseHTTPVersion(vers)
+	if ok {
+		b.req.Proto = vers
+		b.req.ProtoMajor = major
+		b.req.ProtoMinor = minor
+	}
+
+	return b
+}
+
+// SetCookie add cookie into request.
+func (b *BeegoHTTPRequest) SetCookie(cookie *http.Cookie) *BeegoHTTPRequest {
+	b.req.Header.Add("Cookie", cookie.String())
+	return b
+}
+
+// SetTransport set the setting transport
+func (b *BeegoHTTPRequest) SetTransport(transport http.RoundTripper) *BeegoHTTPRequest {
+	b.setting.Transport = transport
+	return b
+}
+
+// SetProxy set the http proxy
+// example:
+//
+//	func(req *http.Request) (*url.URL, error) {
+// 		u, _ := url.ParseRequestURI("http://127.0.0.1:8118")
+// 		return u, nil
+// 	}
+func (b *BeegoHTTPRequest) SetProxy(proxy func(*http.Request) (*url.URL, error)) *BeegoHTTPRequest {
+	b.setting.Proxy = proxy
+	return b
+}
+
+// SetCheckRedirect specifies the policy for handling redirects.
+//
+// If CheckRedirect is nil, the Client uses its default policy,
+// which is to stop after 10 consecutive requests.
+func (b *BeegoHTTPRequest) SetCheckRedirect(redirect func(req *http.Request, via []*http.Request) error) *BeegoHTTPRequest {
+	b.setting.CheckRedirect = redirect
+	return b
+}
+
+// Param adds query param in to request.
+// params build query string as ?key1=value1&key2=value2...
+func (b *BeegoHTTPRequest) Param(key, value string) *BeegoHTTPRequest {
+	if param, ok := b.params[key]; ok {
+		b.params[key] = append(param, value)
+	} else {
+		b.params[key] = []string{value}
+	}
+	return b
+}
+
+// PostFile add a post file to the request
+func (b *BeegoHTTPRequest) PostFile(formname, filename string) *BeegoHTTPRequest {
+	b.files[formname] = filename
+	return b
+}
+
+// Body adds request raw body.
+// it supports string and []byte.
+func (b *BeegoHTTPRequest) Body(data interface{}) *BeegoHTTPRequest {
+	switch t := data.(type) {
+	case string:
+		bf := bytes.NewBufferString(t)
+		b.req.Body = ioutil.NopCloser(bf)
+		b.req.ContentLength = int64(len(t))
+	case []byte:
+		bf := bytes.NewBuffer(t)
+		b.req.Body = ioutil.NopCloser(bf)
+		b.req.ContentLength = int64(len(t))
+	}
+	return b
+}
+
+// XMLBody adds request raw body encoding by XML.
+func (b *BeegoHTTPRequest) XMLBody(obj interface{}) (*BeegoHTTPRequest, error) {
+	if b.req.Body == nil && obj != nil {
+		byts, err := xml.Marshal(obj)
+		if err != nil {
+			return b, err
+		}
+		b.req.Body = ioutil.NopCloser(bytes.NewReader(byts))
+		b.req.ContentLength = int64(len(byts))
+		b.req.Header.Set("Content-Type", "application/xml")
+	}
+	return b, nil
+}
+
+// YAMLBody adds request raw body encoding by YAML.
+func (b *BeegoHTTPRequest) YAMLBody(obj interface{}) (*BeegoHTTPRequest, error) {
+	if b.req.Body == nil && obj != nil {
+		byts, err := yaml.Marshal(obj)
+		if err != nil {
+			return b, err
+		}
+		b.req.Body = ioutil.NopCloser(bytes.NewReader(byts))
+		b.req.ContentLength = int64(len(byts))
+		b.req.Header.Set("Content-Type", "application/x+yaml")
+	}
+	return b, nil
+}
+
+// JSONBody adds request raw body encoding by JSON.
+func (b *BeegoHTTPRequest) JSONBody(obj interface{}) (*BeegoHTTPRequest, error) {
+	if b.req.Body == nil && obj != nil {
+		byts, err := json.Marshal(obj)
+		if err != nil {
+			return b, err
+		}
+		b.req.Body = ioutil.NopCloser(bytes.NewReader(byts))
+		b.req.ContentLength = int64(len(byts))
+		b.req.Header.Set("Content-Type", "application/json")
+	}
+	return b, nil
+}
+
+func (b *BeegoHTTPRequest) buildURL(paramBody string) {
+	// build GET url with query string
+	if b.req.Method == "GET" && len(paramBody) > 0 {
+		if strings.Contains(b.url, "?") {
+			b.url += "&" + paramBody
+		} else {
+			b.url = b.url + "?" + paramBody
+		}
+		return
+	}
+
+	// build POST/PUT/PATCH url and body
+	if (b.req.Method == "POST" || b.req.Method == "PUT" || b.req.Method == "PATCH" || b.req.Method == "DELETE") && b.req.Body == nil {
+		// with files
+		if len(b.files) > 0 {
+			pr, pw := io.Pipe()
+			bodyWriter := multipart.NewWriter(pw)
+			go func() {
+				for formname, filename := range b.files {
+					fileWriter, err := bodyWriter.CreateFormFile(formname, filename)
+					if err != nil {
+						log.Println("Httplib:", err)
+					}
+					fh, err := os.Open(filename)
+					if err != nil {
+						log.Println("Httplib:", err)
+					}
+					//iocopy
+					_, err = io.Copy(fileWriter, fh)
+					fh.Close()
+					if err != nil {
+						log.Println("Httplib:", err)
+					}
+				}
+				for k, v := range b.params {
+					for _, vv := range v {
+						bodyWriter.WriteField(k, vv)
+					}
+				}
+				bodyWriter.Close()
+				pw.Close()
+			}()
+			b.Header("Content-Type", bodyWriter.FormDataContentType())
+			b.req.Body = ioutil.NopCloser(pr)
+			b.Header("Transfer-Encoding", "chunked")
+			return
+		}
+
+		// with params
+		if len(paramBody) > 0 {
+			b.Header("Content-Type", "application/x-www-form-urlencoded")
+			b.Body(paramBody)
+		}
+	}
+}
+
+func (b *BeegoHTTPRequest) getResponse() (*http.Response, error) {
+	if b.resp.StatusCode != 0 {
+		return b.resp, nil
+	}
+	resp, err := b.DoRequest()
+	if err != nil {
+		return nil, err
+	}
+	b.resp = resp
+	return resp, nil
+}
+
+// DoRequest will do the client.Do
+func (b *BeegoHTTPRequest) DoRequest() (resp *http.Response, err error) {
+	var paramBody string
+	if len(b.params) > 0 {
+		var buf bytes.Buffer
+		for k, v := range b.params {
+			for _, vv := range v {
+				buf.WriteString(url.QueryEscape(k))
+				buf.WriteByte('=')
+				buf.WriteString(url.QueryEscape(vv))
+				buf.WriteByte('&')
+			}
+		}
+		paramBody = buf.String()
+		paramBody = paramBody[0 : len(paramBody)-1]
+	}
+
+	b.buildURL(paramBody)
+	urlParsed, err := url.Parse(b.url)
+	if err != nil {
+		return nil, err
+	}
+
+	b.req.URL = urlParsed
+
+	trans := b.setting.Transport
+
+	if trans == nil {
+		// create default transport
+		trans = &http.Transport{
+			TLSClientConfig:     b.setting.TLSClientConfig,
+			Proxy:               b.setting.Proxy,
+			Dial:                TimeoutDialer(b.setting.ConnectTimeout, b.setting.ReadWriteTimeout),
+			MaxIdleConnsPerHost: 100,
+		}
+	} else {
+		// if b.transport is *http.Transport then set the settings.
+		if t, ok := trans.(*http.Transport); ok {
+			if t.TLSClientConfig == nil {
+				t.TLSClientConfig = b.setting.TLSClientConfig
+			}
+			if t.Proxy == nil {
+				t.Proxy = b.setting.Proxy
+			}
+			if t.Dial == nil {
+				t.Dial = TimeoutDialer(b.setting.ConnectTimeout, b.setting.ReadWriteTimeout)
+			}
+		}
+	}
+
+	var jar http.CookieJar
+	if b.setting.EnableCookie {
+		if defaultCookieJar == nil {
+			createDefaultCookie()
+		}
+		jar = defaultCookieJar
+	}
+
+	client := &http.Client{
+		Transport: trans,
+		Jar:       jar,
+	}
+
+	if b.setting.UserAgent != "" && b.req.Header.Get("User-Agent") == "" {
+		b.req.Header.Set("User-Agent", b.setting.UserAgent)
+	}
+
+	if b.setting.CheckRedirect != nil {
+		client.CheckRedirect = b.setting.CheckRedirect
+	}
+
+	if b.setting.ShowDebug {
+		dump, err := httputil.DumpRequest(b.req, b.setting.DumpBody)
+		if err != nil {
+			log.Println(err.Error())
+		}
+		b.dump = dump
+	}
+	// retries default value is 0, it will run once.
+	// retries equal to -1, it will run forever until success
+	// retries is setted, it will retries fixed times.
+	// Sleeps for a 400ms inbetween calls to reduce spam
+	for i := 0; b.setting.Retries == -1 || i <= b.setting.Retries; i++ {
+		resp, err = client.Do(b.req)
+		if err == nil {
+			break
+		}
+		time.Sleep(b.setting.RetryDelay)
+	}
+	return resp, err
+}
+
+// String returns the body string in response.
+// it calls Response inner.
+func (b *BeegoHTTPRequest) String() (string, error) {
+	data, err := b.Bytes()
+	if err != nil {
+		return "", err
+	}
+
+	return string(data), nil
+}
+
+// Bytes returns the body []byte in response.
+// it calls Response inner.
+func (b *BeegoHTTPRequest) Bytes() ([]byte, error) {
+	if b.body != nil {
+		return b.body, nil
+	}
+	resp, err := b.getResponse()
+	if err != nil {
+		return nil, err
+	}
+	if resp.Body == nil {
+		return nil, nil
+	}
+	defer resp.Body.Close()
+	if b.setting.Gzip && resp.Header.Get("Content-Encoding") == "gzip" {
+		reader, err := gzip.NewReader(resp.Body)
+		if err != nil {
+			return nil, err
+		}
+		b.body, err = ioutil.ReadAll(reader)
+		return b.body, err
+	}
+	b.body, err = ioutil.ReadAll(resp.Body)
+	return b.body, err
+}
+
+// ToFile saves the body data in response to one file.
+// it calls Response inner.
+func (b *BeegoHTTPRequest) ToFile(filename string) error {
+	resp, err := b.getResponse()
+	if err != nil {
+		return err
+	}
+	if resp.Body == nil {
+		return nil
+	}
+	defer resp.Body.Close()
+	err = pathExistAndMkdir(filename)
+	if err != nil {
+		return err
+	}
+	f, err := os.Create(filename)
+	if err != nil {
+		return err
+	}
+	defer f.Close()
+	_, err = io.Copy(f, resp.Body)
+	return err
+}
+
+//Check that the file directory exists, there is no automatically created
+func pathExistAndMkdir(filename string) (err error) {
+	filename = path.Dir(filename)
+	_, err = os.Stat(filename)
+	if err == nil {
+		return nil
+	}
+	if os.IsNotExist(err) {
+		err = os.MkdirAll(filename, os.ModePerm)
+		if err == nil {
+			return nil
+		}
+	}
+	return err
+}
+
+// ToJSON returns the map that marshals from the body bytes as json in response .
+// it calls Response inner.
+func (b *BeegoHTTPRequest) ToJSON(v interface{}) error {
+	data, err := b.Bytes()
+	if err != nil {
+		return err
+	}
+	return json.Unmarshal(data, v)
+}
+
+// ToXML returns the map that marshals from the body bytes as xml in response .
+// it calls Response inner.
+func (b *BeegoHTTPRequest) ToXML(v interface{}) error {
+	data, err := b.Bytes()
+	if err != nil {
+		return err
+	}
+	return xml.Unmarshal(data, v)
+}
+
+// ToYAML returns the map that marshals from the body bytes as yaml in response .
+// it calls Response inner.
+func (b *BeegoHTTPRequest) ToYAML(v interface{}) error {
+	data, err := b.Bytes()
+	if err != nil {
+		return err
+	}
+	return yaml.Unmarshal(data, v)
+}
+
+// Response executes request client gets response mannually.
+func (b *BeegoHTTPRequest) Response() (*http.Response, error) {
+	return b.getResponse()
+}
+
+// TimeoutDialer returns functions of connection dialer with timeout settings for http.Transport Dial field.
+func TimeoutDialer(cTimeout time.Duration, rwTimeout time.Duration) func(net, addr string) (c net.Conn, err error) {
+	return func(netw, addr string) (net.Conn, error) {
+		conn, err := net.DialTimeout(netw, addr, cTimeout)
+		if err != nil {
+			return nil, err
+		}
+		err = conn.SetDeadline(time.Now().Add(rwTimeout))
+		return conn, err
+	}
+}

pkg/httplib/httplib_test.go

@@ -0,0 +1,286 @@
+// Copyright 2014 beego Author. All Rights Reserved.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//      http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package httplib
+
+import (
+	"errors"
+	"io/ioutil"
+	"net"
+	"net/http"
+	"os"
+	"strings"
+	"testing"
+	"time"
+)
+
+func TestResponse(t *testing.T) {
+	req := Get("http://httpbin.org/get")
+	resp, err := req.Response()
+	if err != nil {
+		t.Fatal(err)
+	}
+	t.Log(resp)
+}
+
+func TestDoRequest(t *testing.T) {
+	req := Get("https://goolnk.com/33BD2j")
+	retryAmount := 1
+	req.Retries(1)
+	req.RetryDelay(1400 * time.Millisecond)
+	retryDelay := 1400 * time.Millisecond
+
+	req.setting.CheckRedirect = func(redirectReq *http.Request, redirectVia []*http.Request) error {
+		return errors.New("Redirect triggered")
+	}
+
+	startTime := time.Now().UnixNano() / int64(time.Millisecond)
+
+	_, err := req.Response()
+	if err == nil {
+		t.Fatal("Response should have yielded an error")
+	}
+
+	endTime := time.Now().UnixNano() / int64(time.Millisecond)
+	elapsedTime := endTime - startTime
+	delayedTime := int64(retryAmount) * retryDelay.Milliseconds()
+
+	if elapsedTime < delayedTime {
+		t.Errorf("Not enough retries. Took %dms. Delay was meant to take %dms", elapsedTime, delayedTime)
+	}
+
+}
+
+func TestGet(t *testing.T) {
+	req := Get("http://httpbin.org/get")
+	b, err := req.Bytes()
+	if err != nil {
+		t.Fatal(err)
+	}
+	t.Log(b)
+
+	s, err := req.String()
+	if err != nil {
+		t.Fatal(err)
+	}
+	t.Log(s)
+
+	if string(b) != s {
+		t.Fatal("request data not match")
+	}
+}
+
+func TestSimplePost(t *testing.T) {
+	v := "smallfish"
+	req := Post("http://httpbin.org/post")
+	req.Param("username", v)
+
+	str, err := req.String()
+	if err != nil {
+		t.Fatal(err)
+	}
+	t.Log(str)
+
+	n := strings.Index(str, v)
+	if n == -1 {
+		t.Fatal(v + " not found in post")
+	}
+}
+
+//func TestPostFile(t *testing.T) {
+//	v := "smallfish"
+//	req := Post("http://httpbin.org/post")
+//	req.Debug(true)
+//	req.Param("username", v)
+//	req.PostFile("uploadfile", "httplib_test.go")
+
+//	str, err := req.String()
+//	if err != nil {
+//		t.Fatal(err)
+//	}
+//	t.Log(str)
+
+//	n := strings.Index(str, v)
+//	if n == -1 {
+//		t.Fatal(v + " not found in post")
+//	}
+//}
+
+func TestSimplePut(t *testing.T) {
+	str, err := Put("http://httpbin.org/put").String()
+	if err != nil {
+		t.Fatal(err)
+	}
+	t.Log(str)
+}
+
+func TestSimpleDelete(t *testing.T) {
+	str, err := Delete("http://httpbin.org/delete").String()
+	if err != nil {
+		t.Fatal(err)
+	}
+	t.Log(str)
+}
+
+func TestSimpleDeleteParam(t *testing.T) {
+	str, err := Delete("http://httpbin.org/delete").Param("key", "val").String()
+	if err != nil {
+		t.Fatal(err)
+	}
+	t.Log(str)
+}
+
+func TestWithCookie(t *testing.T) {
+	v := "smallfish"
+	str, err := Get("http://httpbin.org/cookies/set?k1=" + v).SetEnableCookie(true).String()
+	if err != nil {
+		t.Fatal(err)
+	}
+	t.Log(str)
+
+	str, err = Get("http://httpbin.org/cookies").SetEnableCookie(true).String()
+	if err != nil {
+		t.Fatal(err)
+	}
+	t.Log(str)
+
+	n := strings.Index(str, v)
+	if n == -1 {
+		t.Fatal(v + " not found in cookie")
+	}
+}
+
+func TestWithBasicAuth(t *testing.T) {
+	str, err := Get("http://httpbin.org/basic-auth/user/passwd").SetBasicAuth("user", "passwd").String()
+	if err != nil {
+		t.Fatal(err)
+	}
+	t.Log(str)
+	n := strings.Index(str, "authenticated")
+	if n == -1 {
+		t.Fatal("authenticated not found in response")
+	}
+}
+
+func TestWithUserAgent(t *testing.T) {
+	v := "beego"
+	str, err := Get("http://httpbin.org/headers").SetUserAgent(v).String()
+	if err != nil {
+		t.Fatal(err)
+	}
+	t.Log(str)
+
+	n := strings.Index(str, v)
+	if n == -1 {
+		t.Fatal(v + " not found in user-agent")
+	}
+}
+
+func TestWithSetting(t *testing.T) {
+	v := "beego"
+	var setting BeegoHTTPSettings
+	setting.EnableCookie = true
+	setting.UserAgent = v
+	setting.Transport = &http.Transport{
+		DialContext: (&net.Dialer{
+			Timeout:   30 * time.Second,
+			KeepAlive: 30 * time.Second,
+			DualStack: true,
+		}).DialContext,
+		MaxIdleConns:          50,
+		IdleConnTimeout:       90 * time.Second,
+		ExpectContinueTimeout: 1 * time.Second,
+	}
+	setting.ReadWriteTimeout = 5 * time.Second
+	SetDefaultSetting(setting)
+
+	str, err := Get("http://httpbin.org/get").String()
+	if err != nil {
+		t.Fatal(err)
+	}
+	t.Log(str)
+
+	n := strings.Index(str, v)
+	if n == -1 {
+		t.Fatal(v + " not found in user-agent")
+	}
+}
+
+func TestToJson(t *testing.T) {
+	req := Get("http://httpbin.org/ip")
+	resp, err := req.Response()
+	if err != nil {
+		t.Fatal(err)
+	}
+	t.Log(resp)
+
+	// httpbin will return http remote addr
+	type IP struct {
+		Origin string `json:"origin"`
+	}
+	var ip IP
+	err = req.ToJSON(&ip)
+	if err != nil {
+		t.Fatal(err)
+	}
+	t.Log(ip.Origin)
+	ips := strings.Split(ip.Origin, ",")
+	if len(ips) == 0 {
+		t.Fatal("response is not valid ip")
+	}
+	for i := range ips {
+		if net.ParseIP(strings.TrimSpace(ips[i])).To4() == nil {
+			t.Fatal("response is not valid ip")
+		}
+	}
+
+}
+
+func TestToFile(t *testing.T) {
+	f := "beego_testfile"
+	req := Get("http://httpbin.org/ip")
+	err := req.ToFile(f)
+	if err != nil {
+		t.Fatal(err)
+	}
+	defer os.Remove(f)
+	b, err := ioutil.ReadFile(f)
+	if n := strings.Index(string(b), "origin"); n == -1 {
+		t.Fatal(err)
+	}
+}
+
+func TestToFileDir(t *testing.T) {
+	f := "./files/beego_testfile"
+	req := Get("http://httpbin.org/ip")
+	err := req.ToFile(f)
+	if err != nil {
+		t.Fatal(err)
+	}
+	defer os.RemoveAll("./files")
+	b, err := ioutil.ReadFile(f)
+	if n := strings.Index(string(b), "origin"); n == -1 {
+		t.Fatal(err)
+	}
+}
+
+func TestHeader(t *testing.T) {
+	req := Get("http://httpbin.org/headers")
+	req.Header("User-Agent", "Mozilla/5.0 (Macintosh; Intel Mac OS X 10_9_0) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/31.0.1650.57 Safari/537.36")
+	str, err := req.String()
+	if err != nil {
+		t.Fatal(err)
+	}
+	t.Log(str)
+}

pkg/log.go

@@ -0,0 +1,127 @@
+// Copyright 2014 beego Author. All Rights Reserved.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//      http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package beego
+
+import (
+	"strings"
+
+	"github.com/astaxie/beego/logs"
+)
+
+// Log levels to control the logging output.
+// Deprecated: use github.com/astaxie/beego/logs instead.
+const (
+	LevelEmergency = iota
+	LevelAlert
+	LevelCritical
+	LevelError
+	LevelWarning
+	LevelNotice
+	LevelInformational
+	LevelDebug
+)
+
+// BeeLogger references the used application logger.
+// Deprecated: use github.com/astaxie/beego/logs instead.
+var BeeLogger = logs.GetBeeLogger()
+
+// SetLevel sets the global log level used by the simple logger.
+// Deprecated: use github.com/astaxie/beego/logs instead.
+func SetLevel(l int) {
+	logs.SetLevel(l)
+}
+
+// SetLogFuncCall set the CallDepth, default is 3
+// Deprecated: use github.com/astaxie/beego/logs instead.
+func SetLogFuncCall(b bool) {
+	logs.SetLogFuncCall(b)
+}
+
+// SetLogger sets a new logger.
+// Deprecated: use github.com/astaxie/beego/logs instead.
+func SetLogger(adaptername string, config string) error {
+	return logs.SetLogger(adaptername, config)
+}
+
+// Emergency logs a message at emergency level.
+// Deprecated: use github.com/astaxie/beego/logs instead.
+func Emergency(v ...interface{}) {
+	logs.Emergency(generateFmtStr(len(v)), v...)
+}
+
+// Alert logs a message at alert level.
+// Deprecated: use github.com/astaxie/beego/logs instead.
+func Alert(v ...interface{}) {
+	logs.Alert(generateFmtStr(len(v)), v...)
+}
+
+// Critical logs a message at critical level.
+// Deprecated: use github.com/astaxie/beego/logs instead.
+func Critical(v ...interface{}) {
+	logs.Critical(generateFmtStr(len(v)), v...)
+}
+
+// Error logs a message at error level.
+// Deprecated: use github.com/astaxie/beego/logs instead.
+func Error(v ...interface{}) {
+	logs.Error(generateFmtStr(len(v)), v...)
+}
+
+// Warning logs a message at warning level.
+// Deprecated: use github.com/astaxie/beego/logs instead.
+func Warning(v ...interface{}) {
+	logs.Warning(generateFmtStr(len(v)), v...)
+}
+
+// Warn compatibility alias for Warning()
+// Deprecated: use github.com/astaxie/beego/logs instead.
+func Warn(v ...interface{}) {
+	logs.Warn(generateFmtStr(len(v)), v...)
+}
+
+// Notice logs a message at notice level.
+// Deprecated: use github.com/astaxie/beego/logs instead.
+func Notice(v ...interface{}) {
+	logs.Notice(generateFmtStr(len(v)), v...)
+}
+
+// Informational logs a message at info level.
+// Deprecated: use github.com/astaxie/beego/logs instead.
+func Informational(v ...interface{}) {
+	logs.Informational(generateFmtStr(len(v)), v...)
+}
+
+// Info compatibility alias for Warning()
+// Deprecated: use github.com/astaxie/beego/logs instead.
+func Info(v ...interface{}) {
+	logs.Info(generateFmtStr(len(v)), v...)
+}
+
+// Debug logs a message at debug level.
+// Deprecated: use github.com/astaxie/beego/logs instead.
+func Debug(v ...interface{}) {
+	logs.Debug(generateFmtStr(len(v)), v...)
+}
+
+// Trace logs a message at trace level.
+// compatibility alias for Warning()
+// Deprecated: use github.com/astaxie/beego/logs instead.
+func Trace(v ...interface{}) {
+	logs.Trace(generateFmtStr(len(v)), v...)
+}
+
+func generateFmtStr(n int) string {
+	return strings.Repeat("%v ", n)
+}

pkg/logs/README.md

@@ -0,0 +1,72 @@
+## logs
+logs is a Go logs manager. It can use many logs adapters. The repo is inspired by `database/sql` .
+
+
+## How to install?
+
+	go get github.com/astaxie/beego/logs
+
+
+## What adapters are supported?
+
+As of now this logs support console, file,smtp and conn.
+
+
+## How to use it?
+
+First you must import it
+
+```golang
+import (
+	"github.com/astaxie/beego/logs"
+)
+```
+
+Then init a Log (example with console adapter)
+
+```golang
+log := logs.NewLogger(10000)
+log.SetLogger("console", "")
+```
+
+> the first params stand for how many channel
+
+Use it like this:
+
+```golang
+log.Trace("trace")
+log.Info("info")
+log.Warn("warning")
+log.Debug("debug")
+log.Critical("critical")
+```
+
+## File adapter
+
+Configure file adapter like this:
+
+```golang
+log := NewLogger(10000)
+log.SetLogger("file", `{"filename":"test.log"}`)
+```
+
+## Conn adapter
+
+Configure like this:
+
+```golang
+log := NewLogger(1000)
+log.SetLogger("conn", `{"net":"tcp","addr":":7020"}`)
+log.Info("info")
+```
+
+## Smtp adapter
+
+Configure like this:
+
+```golang
+log := NewLogger(10000)
+log.SetLogger("smtp", `{"username":"beegotest@gmail.com","password":"xxxxxxxx","host":"smtp.gmail.com:587","sendTos":["xiemengjun@gmail.com"]}`)
+log.Critical("sendmail critical")
+time.Sleep(time.Second * 30)
+```

pkg/logs/accesslog.go

@@ -0,0 +1,83 @@
+// Copyright 2014 beego Author. All Rights Reserved.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//      http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package logs
+
+import (
+	"bytes"
+	"strings"
+	"encoding/json"
+	"fmt"
+	"time"
+)
+
+const (
+	apacheFormatPattern = "%s - - [%s] \"%s %d %d\" %f %s %s"
+	apacheFormat        = "APACHE_FORMAT"
+	jsonFormat          = "JSON_FORMAT"
+)
+
+// AccessLogRecord struct for holding access log data.
+type AccessLogRecord struct {
+	RemoteAddr     string        `json:"remote_addr"`
+	RequestTime    time.Time     `json:"request_time"`
+	RequestMethod  string        `json:"request_method"`
+	Request        string        `json:"request"`
+	ServerProtocol string        `json:"server_protocol"`
+	Host           string        `json:"host"`
+	Status         int           `json:"status"`
+	BodyBytesSent  int64         `json:"body_bytes_sent"`
+	ElapsedTime    time.Duration `json:"elapsed_time"`
+	HTTPReferrer   string        `json:"http_referrer"`
+	HTTPUserAgent  string        `json:"http_user_agent"`
+	RemoteUser     string        `json:"remote_user"`
+}
+
+func (r *AccessLogRecord) json() ([]byte, error) {
+	buffer := &bytes.Buffer{}
+	encoder := json.NewEncoder(buffer)
+	disableEscapeHTML(encoder)
+
+	err := encoder.Encode(r)
+	return buffer.Bytes(), err
+}
+
+func disableEscapeHTML(i interface{}) {
+	if e, ok := i.(interface {
+		SetEscapeHTML(bool)
+	}); ok {
+		e.SetEscapeHTML(false)
+	}
+}
+
+// AccessLog - Format and print access log.
+func AccessLog(r *AccessLogRecord, format string) {
+	var msg string
+	switch format {
+	case apacheFormat:
+		timeFormatted := r.RequestTime.Format("02/Jan/2006 03:04:05")
+		msg = fmt.Sprintf(apacheFormatPattern, r.RemoteAddr, timeFormatted, r.Request, r.Status, r.BodyBytesSent,
+			r.ElapsedTime.Seconds(), r.HTTPReferrer, r.HTTPUserAgent)
+	case jsonFormat:
+		fallthrough
+	default:
+		jsonData, err := r.json()
+		if err != nil {
+			msg = fmt.Sprintf(`{"Error": "%s"}`, err)
+		} else {
+			msg = string(jsonData)
+		}
+	}
+	beeLogger.writeMsg(levelLoggerImpl, strings.TrimSpace(msg))
+}

pkg/logs/alils/alils.go

@@ -0,0 +1,186 @@
+package alils
+
+import (
+	"encoding/json"
+	"strings"
+	"sync"
+	"time"
+
+	"github.com/astaxie/beego/logs"
+	"github.com/gogo/protobuf/proto"
+)
+
+const (
+	// CacheSize set the flush size
+	CacheSize int = 64
+	// Delimiter define the topic delimiter
+	Delimiter string = "##"
+)
+
+// Config is the Config for Ali Log
+type Config struct {
+	Project   string   `json:"project"`
+	Endpoint  string   `json:"endpoint"`
+	KeyID     string   `json:"key_id"`
+	KeySecret string   `json:"key_secret"`
+	LogStore  string   `json:"log_store"`
+	Topics    []string `json:"topics"`
+	Source    string   `json:"source"`
+	Level     int      `json:"level"`
+	FlushWhen int      `json:"flush_when"`
+}
+
+// aliLSWriter implements LoggerInterface.
+// it writes messages in keep-live tcp connection.
+type aliLSWriter struct {
+	store    *LogStore
+	group    []*LogGroup
+	withMap  bool
+	groupMap map[string]*LogGroup
+	lock     *sync.Mutex
+	Config
+}
+
+// NewAliLS create a new Logger
+func NewAliLS() logs.Logger {
+	alils := new(aliLSWriter)
+	alils.Level = logs.LevelTrace
+	return alils
+}
+
+// Init parse config and init struct
+func (c *aliLSWriter) Init(jsonConfig string) (err error) {
+
+	json.Unmarshal([]byte(jsonConfig), c)
+
+	if c.FlushWhen > CacheSize {
+		c.FlushWhen = CacheSize
+	}
+
+	prj := &LogProject{
+		Name:            c.Project,
+		Endpoint:        c.Endpoint,
+		AccessKeyID:     c.KeyID,
+		AccessKeySecret: c.KeySecret,
+	}
+
+	c.store, err = prj.GetLogStore(c.LogStore)
+	if err != nil {
+		return err
+	}
+
+	// Create default Log Group
+	c.group = append(c.group, &LogGroup{
+		Topic:  proto.String(""),
+		Source: proto.String(c.Source),
+		Logs:   make([]*Log, 0, c.FlushWhen),
+	})
+
+	// Create other Log Group
+	c.groupMap = make(map[string]*LogGroup)
+	for _, topic := range c.Topics {
+
+		lg := &LogGroup{
+			Topic:  proto.String(topic),
+			Source: proto.String(c.Source),
+			Logs:   make([]*Log, 0, c.FlushWhen),
+		}
+
+		c.group = append(c.group, lg)
+		c.groupMap[topic] = lg
+	}
+
+	if len(c.group) == 1 {
+		c.withMap = false
+	} else {
+		c.withMap = true
+	}
+
+	c.lock = &sync.Mutex{}
+
+	return nil
+}
+
+// WriteMsg write message in connection.
+// if connection is down, try to re-connect.
+func (c *aliLSWriter) WriteMsg(when time.Time, msg string, level int) (err error) {
+
+	if level > c.Level {
+		return nil
+	}
+
+	var topic string
+	var content string
+	var lg *LogGroup
+	if c.withMap {
+
+		// Topic，LogGroup
+		strs := strings.SplitN(msg, Delimiter, 2)
+		if len(strs) == 2 {
+			pos := strings.LastIndex(strs[0], " ")
+			topic = strs[0][pos+1 : len(strs[0])]
+			content = strs[0][0:pos] + strs[1]
+			lg = c.groupMap[topic]
+		}
+
+		// send to empty Topic
+		if lg == nil {
+			content = msg
+			lg = c.group[0]
+		}
+	} else {
+		content = msg
+		lg = c.group[0]
+	}
+
+	c1 := &LogContent{
+		Key:   proto.String("msg"),
+		Value: proto.String(content),
+	}
+
+	l := &Log{
+		Time: proto.Uint32(uint32(when.Unix())),
+		Contents: []*LogContent{
+			c1,
+		},
+	}
+
+	c.lock.Lock()
+	lg.Logs = append(lg.Logs, l)
+	c.lock.Unlock()
+
+	if len(lg.Logs) >= c.FlushWhen {
+		c.flush(lg)
+	}
+
+	return nil
+}
+
+// Flush implementing method. empty.
+func (c *aliLSWriter) Flush() {
+
+	// flush all group
+	for _, lg := range c.group {
+		c.flush(lg)
+	}
+}
+
+// Destroy destroy connection writer and close tcp listener.
+func (c *aliLSWriter) Destroy() {
+}
+
+func (c *aliLSWriter) flush(lg *LogGroup) {
+
+	c.lock.Lock()
+	defer c.lock.Unlock()
+	err := c.store.PutLogs(lg)
+	if err != nil {
+		return
+	}
+
+	lg.Logs = make([]*Log, 0, c.FlushWhen)
+}
+
+func init() {
+	logs.Register(logs.AdapterAliLS, NewAliLS)
+}

pkg/logs/alils/config.go

@@ -0,0 +1,13 @@
+package alils
+
+const (
+	version         = "0.5.0"     // SDK version
+	signatureMethod = "hmac-sha1" // Signature method
+
+	// OffsetNewest stands for the log head offset, i.e. the offset that will be
+	// assigned to the next message that will be produced to the shard.
+	OffsetNewest = "end"
+	// OffsetOldest stands for the oldest offset available on the logstore for a
+	// shard.
+	OffsetOldest = "begin"
+)

pkg/logs/alils/log_config.go

@@ -0,0 +1,42 @@
+package alils
+
+// InputDetail define log detail
+type InputDetail struct {
+	LogType       string   `json:"logType"`
+	LogPath       string   `json:"logPath"`
+	FilePattern   string   `json:"filePattern"`
+	LocalStorage  bool     `json:"localStorage"`
+	TimeFormat    string   `json:"timeFormat"`
+	LogBeginRegex string   `json:"logBeginRegex"`
+	Regex         string   `json:"regex"`
+	Keys          []string `json:"key"`
+	FilterKeys    []string `json:"filterKey"`
+	FilterRegex   []string `json:"filterRegex"`
+	TopicFormat   string   `json:"topicFormat"`
+}
+
+// OutputDetail define the output detail
+type OutputDetail struct {
+	Endpoint     string `json:"endpoint"`
+	LogStoreName string `json:"logstoreName"`
+}
+
+// LogConfig define Log Config
+type LogConfig struct {
+	Name         string       `json:"configName"`
+	InputType    string       `json:"inputType"`
+	InputDetail  InputDetail  `json:"inputDetail"`
+	OutputType   string       `json:"outputType"`
+	OutputDetail OutputDetail `json:"outputDetail"`
+
+	CreateTime     uint32
+	LastModifyTime uint32
+
+	project *LogProject
+}
+
+// GetAppliedMachineGroup returns applied machine group of this config.
+func (c *LogConfig) GetAppliedMachineGroup(confName string) (groupNames []string, err error) {
+	groupNames, err = c.project.GetAppliedMachineGroups(c.Name)
+	return
+}

pkg/logs/alils/log_project.go

@@ -0,0 +1,819 @@
+/*
+Package alils implements the SDK(v0.5.0) of Simple Log Service(abbr. SLS).
+
+For more description about SLS, please read this article:
+http://gitlab.alibaba-inc.com/sls/doc.
+*/
+package alils
+
+import (
+	"encoding/json"
+	"fmt"
+	"io/ioutil"
+	"net/http"
+	"net/http/httputil"
+)
+
+// Error message in SLS HTTP response.
+type errorMessage struct {
+	Code    string `json:"errorCode"`
+	Message string `json:"errorMessage"`
+}
+
+// LogProject Define the Ali Project detail
+type LogProject struct {
+	Name            string // Project name
+	Endpoint        string // IP or hostname of SLS endpoint
+	AccessKeyID     string
+	AccessKeySecret string
+}
+
+// NewLogProject creates a new SLS project.
+func NewLogProject(name, endpoint, AccessKeyID, accessKeySecret string) (p *LogProject, err error) {
+	p = &LogProject{
+		Name:            name,
+		Endpoint:        endpoint,
+		AccessKeyID:     AccessKeyID,
+		AccessKeySecret: accessKeySecret,
+	}
+	return p, nil
+}
+
+// ListLogStore returns all logstore names of project p.
+func (p *LogProject) ListLogStore() (storeNames []string, err error) {
+	h := map[string]string{
+		"x-sls-bodyrawsize": "0",
+	}
+
+	uri := fmt.Sprintf("/logstores")
+	r, err := request(p, "GET", uri, h, nil)
+	if err != nil {
+		return
+	}
+
+	buf, err := ioutil.ReadAll(r.Body)
+	if err != nil {
+		return
+	}
+
+	if r.StatusCode != http.StatusOK {
+		errMsg := &errorMessage{}
+		err = json.Unmarshal(buf, errMsg)
+		if err != nil {
+			err = fmt.Errorf("failed to list logstore")
+			dump, _ := httputil.DumpResponse(r, true)
+			fmt.Printf("%s\n", dump)
+			return
+		}
+		err = fmt.Errorf("%v:%v", errMsg.Code, errMsg.Message)
+		return
+	}
+
+	type Body struct {
+		Count     int
+		LogStores []string
+	}
+	body := &Body{}
+
+	err = json.Unmarshal(buf, body)
+	if err != nil {
+		return
+	}
+
+	storeNames = body.LogStores
+
+	return
+}
+
+// GetLogStore returns logstore according by logstore name.
+func (p *LogProject) GetLogStore(name string) (s *LogStore, err error) {
+	h := map[string]string{
+		"x-sls-bodyrawsize": "0",
+	}
+
+	r, err := request(p, "GET", "/logstores/"+name, h, nil)
+	if err != nil {
+		return
+	}
+
+	buf, err := ioutil.ReadAll(r.Body)
+	if err != nil {
+		return
+	}
+
+	if r.StatusCode != http.StatusOK {
+		errMsg := &errorMessage{}
+		err = json.Unmarshal(buf, errMsg)
+		if err != nil {
+			err = fmt.Errorf("failed to get logstore")
+			dump, _ := httputil.DumpResponse(r, true)
+			fmt.Printf("%s\n", dump)
+			return
+		}
+		err = fmt.Errorf("%v:%v", errMsg.Code, errMsg.Message)
+		return
+	}
+
+	s = &LogStore{}
+	err = json.Unmarshal(buf, s)
+	if err != nil {
+		return
+	}
+	s.project = p
+	return
+}
+
+// CreateLogStore creates a new logstore in SLS,
+// where name is logstore name,
+// and ttl is time-to-live(in day) of logs,
+// and shardCnt is the number of shards.
+func (p *LogProject) CreateLogStore(name string, ttl, shardCnt int) (err error) {
+
+	type Body struct {
+		Name       string `json:"logstoreName"`
+		TTL        int    `json:"ttl"`
+		ShardCount int    `json:"shardCount"`
+	}
+
+	store := &Body{
+		Name:       name,
+		TTL:        ttl,
+		ShardCount: shardCnt,
+	}
+
+	body, err := json.Marshal(store)
+	if err != nil {
+		return
+	}
+
+	h := map[string]string{
+		"x-sls-bodyrawsize": fmt.Sprintf("%v", len(body)),
+		"Content-Type":      "application/json",
+		"Accept-Encoding":   "deflate", // TODO: support lz4
+	}
+
+	r, err := request(p, "POST", "/logstores", h, body)
+	if err != nil {
+		return
+	}
+
+	body, err = ioutil.ReadAll(r.Body)
+	if err != nil {
+		return
+	}
+
+	if r.StatusCode != http.StatusOK {
+		errMsg := &errorMessage{}
+		err = json.Unmarshal(body, errMsg)
+		if err != nil {
+			err = fmt.Errorf("failed to create logstore")
+			dump, _ := httputil.DumpResponse(r, true)
+			fmt.Printf("%s\n", dump)
+			return
+		}
+		err = fmt.Errorf("%v:%v", errMsg.Code, errMsg.Message)
+		return
+	}
+
+	return
+}
+
+// DeleteLogStore deletes a logstore according by logstore name.
+func (p *LogProject) DeleteLogStore(name string) (err error) {
+	h := map[string]string{
+		"x-sls-bodyrawsize": "0",
+	}
+
+	r, err := request(p, "DELETE", "/logstores/"+name, h, nil)
+	if err != nil {
+		return
+	}
+
+	body, err := ioutil.ReadAll(r.Body)
+	if err != nil {
+		return
+	}
+
+	if r.StatusCode != http.StatusOK {
+		errMsg := &errorMessage{}
+		err = json.Unmarshal(body, errMsg)
+		if err != nil {
+			err = fmt.Errorf("failed to delete logstore")
+			dump, _ := httputil.DumpResponse(r, true)
+			fmt.Printf("%s\n", dump)
+			return
+		}
+		err = fmt.Errorf("%v:%v", errMsg.Code, errMsg.Message)
+		return
+	}
+	return
+}
+
+// UpdateLogStore updates a logstore according by logstore name,
+// obviously we can't modify the logstore name itself.
+func (p *LogProject) UpdateLogStore(name string, ttl, shardCnt int) (err error) {
+
+	type Body struct {
+		Name       string `json:"logstoreName"`
+		TTL        int    `json:"ttl"`
+		ShardCount int    `json:"shardCount"`
+	}
+
+	store := &Body{
+		Name:       name,
+		TTL:        ttl,
+		ShardCount: shardCnt,
+	}
+
+	body, err := json.Marshal(store)
+	if err != nil {
+		return
+	}
+
+	h := map[string]string{
+		"x-sls-bodyrawsize": fmt.Sprintf("%v", len(body)),
+		"Content-Type":      "application/json",
+		"Accept-Encoding":   "deflate", // TODO: support lz4
+	}
+
+	r, err := request(p, "PUT", "/logstores", h, body)
+	if err != nil {
+		return
+	}
+
+	body, err = ioutil.ReadAll(r.Body)
+	if err != nil {
+		return
+	}
+
+	if r.StatusCode != http.StatusOK {
+		errMsg := &errorMessage{}
+		err = json.Unmarshal(body, errMsg)
+		if err != nil {
+			err = fmt.Errorf("failed to update logstore")
+			dump, _ := httputil.DumpResponse(r, true)
+			fmt.Printf("%s\n", dump)
+			return
+		}
+		err = fmt.Errorf("%v:%v", errMsg.Code, errMsg.Message)
+		return
+	}
+
+	return
+}
+
+// ListMachineGroup returns machine group name list and the total number of machine groups.
+// The offset starts from 0 and the size is the max number of machine groups could be returned.
+func (p *LogProject) ListMachineGroup(offset, size int) (m []string, total int, err error) {
+	h := map[string]string{
+		"x-sls-bodyrawsize": "0",
+	}
+
+	if size <= 0 {
+		size = 500
+	}
+
+	uri := fmt.Sprintf("/machinegroups?offset=%v&size=%v", offset, size)
+	r, err := request(p, "GET", uri, h, nil)
+	if err != nil {
+		return
+	}
+
+	buf, err := ioutil.ReadAll(r.Body)
+	if err != nil {
+		return
+	}
+
+	if r.StatusCode != http.StatusOK {
+		errMsg := &errorMessage{}
+		err = json.Unmarshal(buf, errMsg)
+		if err != nil {
+			err = fmt.Errorf("failed to list machine group")
+			dump, _ := httputil.DumpResponse(r, true)
+			fmt.Printf("%s\n", dump)
+			return
+		}
+		err = fmt.Errorf("%v:%v", errMsg.Code, errMsg.Message)
+		return
+	}
+
+	type Body struct {
+		MachineGroups []string
+		Count         int
+		Total         int
+	}
+	body := &Body{}
+
+	err = json.Unmarshal(buf, body)
+	if err != nil {
+		return
+	}
+
+	m = body.MachineGroups
+	total = body.Total
+
+	return
+}
+
+// GetMachineGroup retruns machine group according by machine group name.
+func (p *LogProject) GetMachineGroup(name string) (m *MachineGroup, err error) {
+	h := map[string]string{
+		"x-sls-bodyrawsize": "0",
+	}
+
+	r, err := request(p, "GET", "/machinegroups/"+name, h, nil)
+	if err != nil {
+		return
+	}
+
+	buf, err := ioutil.ReadAll(r.Body)
+	if err != nil {
+		return
+	}
+
+	if r.StatusCode != http.StatusOK {
+		errMsg := &errorMessage{}
+		err = json.Unmarshal(buf, errMsg)
+		if err != nil {
+			err = fmt.Errorf("failed to get machine group:%v", name)
+			dump, _ := httputil.DumpResponse(r, true)
+			fmt.Printf("%s\n", dump)
+			return
+		}
+		err = fmt.Errorf("%v:%v", errMsg.Code, errMsg.Message)
+		return
+	}
+
+	m = &MachineGroup{}
+	err = json.Unmarshal(buf, m)
+	if err != nil {
+		return
+	}
+	m.project = p
+	return
+}
+
+// CreateMachineGroup creates a new machine group in SLS.
+func (p *LogProject) CreateMachineGroup(m *MachineGroup) (err error) {
+
+	body, err := json.Marshal(m)
+	if err != nil {
+		return
+	}
+
+	h := map[string]string{
+		"x-sls-bodyrawsize": fmt.Sprintf("%v", len(body)),
+		"Content-Type":      "application/json",
+		"Accept-Encoding":   "deflate", // TODO: support lz4
+	}
+
+	r, err := request(p, "POST", "/machinegroups", h, body)
+	if err != nil {
+		return
+	}
+
+	body, err = ioutil.ReadAll(r.Body)
+	if err != nil {
+		return
+	}
+
+	if r.StatusCode != http.StatusOK {
+		errMsg := &errorMessage{}
+		err = json.Unmarshal(body, errMsg)
+		if err != nil {
+			err = fmt.Errorf("failed to create machine group")
+			dump, _ := httputil.DumpResponse(r, true)
+			fmt.Printf("%s\n", dump)
+			return
+		}
+		err = fmt.Errorf("%v:%v", errMsg.Code, errMsg.Message)
+		return
+	}
+
+	return
+}
+
+// UpdateMachineGroup updates a machine group.
+func (p *LogProject) UpdateMachineGroup(m *MachineGroup) (err error) {
+
+	body, err := json.Marshal(m)
+	if err != nil {
+		return
+	}
+
+	h := map[string]string{
+		"x-sls-bodyrawsize": fmt.Sprintf("%v", len(body)),
+		"Content-Type":      "application/json",
+		"Accept-Encoding":   "deflate", // TODO: support lz4
+	}
+
+	r, err := request(p, "PUT", "/machinegroups/"+m.Name, h, body)
+	if err != nil {
+		return
+	}
+
+	body, err = ioutil.ReadAll(r.Body)
+	if err != nil {
+		return
+	}
+
+	if r.StatusCode != http.StatusOK {
+		errMsg := &errorMessage{}
+		err = json.Unmarshal(body, errMsg)
+		if err != nil {
+			err = fmt.Errorf("failed to update machine group")
+			dump, _ := httputil.DumpResponse(r, true)
+			fmt.Printf("%s\n", dump)
+			return
+		}
+		err = fmt.Errorf("%v:%v", errMsg.Code, errMsg.Message)
+		return
+	}
+
+	return
+}
+
+// DeleteMachineGroup deletes machine group according machine group name.
+func (p *LogProject) DeleteMachineGroup(name string) (err error) {
+	h := map[string]string{
+		"x-sls-bodyrawsize": "0",
+	}
+
+	r, err := request(p, "DELETE", "/machinegroups/"+name, h, nil)
+	if err != nil {
+		return
+	}
+
+	body, err := ioutil.ReadAll(r.Body)
+	if err != nil {
+		return
+	}
+
+	if r.StatusCode != http.StatusOK {
+		errMsg := &errorMessage{}
+		err = json.Unmarshal(body, errMsg)
+		if err != nil {
+			err = fmt.Errorf("failed to delete machine group")
+			dump, _ := httputil.DumpResponse(r, true)
+			fmt.Printf("%s\n", dump)
+			return
+		}
+		err = fmt.Errorf("%v:%v", errMsg.Code, errMsg.Message)
+		return
+	}
+	return
+}
+
+// ListConfig returns config names list and the total number of configs.
+// The offset starts from 0 and the size is the max number of configs could be returned.
+func (p *LogProject) ListConfig(offset, size int) (cfgNames []string, total int, err error) {
+	h := map[string]string{
+		"x-sls-bodyrawsize": "0",
+	}
+
+	if size <= 0 {
+		size = 100
+	}
+
+	uri := fmt.Sprintf("/configs?offset=%v&size=%v", offset, size)
+	r, err := request(p, "GET", uri, h, nil)
+	if err != nil {
+		return
+	}
+
+	buf, err := ioutil.ReadAll(r.Body)
+	if err != nil {
+		return
+	}
+
+	if r.StatusCode != http.StatusOK {
+		errMsg := &errorMessage{}
+		err = json.Unmarshal(buf, errMsg)
+		if err != nil {
+			err = fmt.Errorf("failed to delete machine group")
+			dump, _ := httputil.DumpResponse(r, true)
+			fmt.Printf("%s\n", dump)
+			return
+		}
+		err = fmt.Errorf("%v:%v", errMsg.Code, errMsg.Message)
+		return
+	}
+
+	type Body struct {
+		Total   int
+		Configs []string
+	}
+	body := &Body{}
+
+	err = json.Unmarshal(buf, body)
+	if err != nil {
+		return
+	}
+
+	cfgNames = body.Configs
+	total = body.Total
+	return
+}
+
+// GetConfig returns config according by config name.
+func (p *LogProject) GetConfig(name string) (c *LogConfig, err error) {
+	h := map[string]string{
+		"x-sls-bodyrawsize": "0",
+	}
+
+	r, err := request(p, "GET", "/configs/"+name, h, nil)
+	if err != nil {
+		return
+	}
+
+	buf, err := ioutil.ReadAll(r.Body)
+	if err != nil {
+		return
+	}
+
+	if r.StatusCode != http.StatusOK {
+		errMsg := &errorMessage{}
+		err = json.Unmarshal(buf, errMsg)
+		if err != nil {
+			err = fmt.Errorf("failed to delete config")
+			dump, _ := httputil.DumpResponse(r, true)
+			fmt.Printf("%s\n", dump)
+			return
+		}
+		err = fmt.Errorf("%v:%v", errMsg.Code, errMsg.Message)
+		return
+	}
+
+	c = &LogConfig{}
+	err = json.Unmarshal(buf, c)
+	if err != nil {
+		return
+	}
+	c.project = p
+	return
+}
+
+// UpdateConfig updates a config.
+func (p *LogProject) UpdateConfig(c *LogConfig) (err error) {
+
+	body, err := json.Marshal(c)
+	if err != nil {
+		return
+	}
+
+	h := map[string]string{
+		"x-sls-bodyrawsize": fmt.Sprintf("%v", len(body)),
+		"Content-Type":      "application/json",
+		"Accept-Encoding":   "deflate", // TODO: support lz4
+	}
+
+	r, err := request(p, "PUT", "/configs/"+c.Name, h, body)
+	if err != nil {
+		return
+	}
+
+	body, err = ioutil.ReadAll(r.Body)
+	if err != nil {
+		return
+	}
+
+	if r.StatusCode != http.StatusOK {
+		errMsg := &errorMessage{}
+		err = json.Unmarshal(body, errMsg)
+		if err != nil {
+			err = fmt.Errorf("failed to update config")
+			dump, _ := httputil.DumpResponse(r, true)
+			fmt.Printf("%s\n", dump)
+			return
+		}
+		err = fmt.Errorf("%v:%v", errMsg.Code, errMsg.Message)
+		return
+	}
+
+	return
+}
+
+// CreateConfig creates a new config in SLS.
+func (p *LogProject) CreateConfig(c *LogConfig) (err error) {
+
+	body, err := json.Marshal(c)
+	if err != nil {
+		return
+	}
+
+	h := map[string]string{
+		"x-sls-bodyrawsize": fmt.Sprintf("%v", len(body)),
+		"Content-Type":      "application/json",
+		"Accept-Encoding":   "deflate", // TODO: support lz4
+	}
+
+	r, err := request(p, "POST", "/configs", h, body)
+	if err != nil {
+		return
+	}
+
+	body, err = ioutil.ReadAll(r.Body)
+	if err != nil {
+		return
+	}
+
+	if r.StatusCode != http.StatusOK {
+		errMsg := &errorMessage{}
+		err = json.Unmarshal(body, errMsg)
+		if err != nil {
+			err = fmt.Errorf("failed to update config")
+			dump, _ := httputil.DumpResponse(r, true)
+			fmt.Printf("%s\n", dump)
+			return
+		}
+		err = fmt.Errorf("%v:%v", errMsg.Code, errMsg.Message)
+		return
+	}
+
+	return
+}
+
+// DeleteConfig deletes a config according by config name.
+func (p *LogProject) DeleteConfig(name string) (err error) {
+	h := map[string]string{
+		"x-sls-bodyrawsize": "0",
+	}
+
+	r, err := request(p, "DELETE", "/configs/"+name, h, nil)
+	if err != nil {
+		return
+	}
+
+	body, err := ioutil.ReadAll(r.Body)
+	if err != nil {
+		return
+	}
+
+	if r.StatusCode != http.StatusOK {
+		errMsg := &errorMessage{}
+		err = json.Unmarshal(body, errMsg)
+		if err != nil {
+			err = fmt.Errorf("failed to delete config")
+			dump, _ := httputil.DumpResponse(r, true)
+			fmt.Printf("%s\n", dump)
+			return
+		}
+		err = fmt.Errorf("%v:%v", errMsg.Code, errMsg.Message)
+		return
+	}
+	return
+}
+
+// GetAppliedMachineGroups returns applied machine group names list according config name.
+func (p *LogProject) GetAppliedMachineGroups(confName string) (groupNames []string, err error) {
+	h := map[string]string{
+		"x-sls-bodyrawsize": "0",
+	}
+
+	uri := fmt.Sprintf("/configs/%v/machinegroups", confName)
+	r, err := request(p, "GET", uri, h, nil)
+	if err != nil {
+		return
+	}
+
+	buf, err := ioutil.ReadAll(r.Body)
+	if err != nil {
+		return
+	}
+
+	if r.StatusCode != http.StatusOK {
+		errMsg := &errorMessage{}
+		err = json.Unmarshal(buf, errMsg)
+		if err != nil {
+			err = fmt.Errorf("failed to get applied machine groups")
+			dump, _ := httputil.DumpResponse(r, true)
+			fmt.Printf("%s\n", dump)
+			return
+		}
+		err = fmt.Errorf("%v:%v", errMsg.Code, errMsg.Message)
+		return
+	}
+
+	type Body struct {
+		Count         int
+		Machinegroups []string
+	}
+
+	body := &Body{}
+	err = json.Unmarshal(buf, body)
+	if err != nil {
+		return
+	}
+
+	groupNames = body.Machinegroups
+	return
+}
+
+// GetAppliedConfigs returns applied config names list according machine group name groupName.
+func (p *LogProject) GetAppliedConfigs(groupName string) (confNames []string, err error) {
+	h := map[string]string{
+		"x-sls-bodyrawsize": "0",
+	}
+
+	uri := fmt.Sprintf("/machinegroups/%v/configs", groupName)
+	r, err := request(p, "GET", uri, h, nil)
+	if err != nil {
+		return
+	}
+
+	buf, err := ioutil.ReadAll(r.Body)
+	if err != nil {
+		return
+	}
+
+	if r.StatusCode != http.StatusOK {
+		errMsg := &errorMessage{}
+		err = json.Unmarshal(buf, errMsg)
+		if err != nil {
+			err = fmt.Errorf("failed to applied configs")
+			dump, _ := httputil.DumpResponse(r, true)
+			fmt.Printf("%s\n", dump)
+			return
+		}
+		err = fmt.Errorf("%v:%v", errMsg.Code, errMsg.Message)
+		return
+	}
+
+	type Cfg struct {
+		Count   int      `json:"count"`
+		Configs []string `json:"configs"`
+	}
+
+	body := &Cfg{}
+	err = json.Unmarshal(buf, body)
+	if err != nil {
+		return
+	}
+
+	confNames = body.Configs
+	return
+}
+
+// ApplyConfigToMachineGroup applies config to machine group.
+func (p *LogProject) ApplyConfigToMachineGroup(confName, groupName string) (err error) {
+	h := map[string]string{
+		"x-sls-bodyrawsize": "0",
+	}
+
+	uri := fmt.Sprintf("/machinegroups/%v/configs/%v", groupName, confName)
+	r, err := request(p, "PUT", uri, h, nil)
+	if err != nil {
+		return
+	}
+
+	buf, err := ioutil.ReadAll(r.Body)
+	if err != nil {
+		return
+	}
+
+	if r.StatusCode != http.StatusOK {
+		errMsg := &errorMessage{}
+		err = json.Unmarshal(buf, errMsg)
+		if err != nil {
+			err = fmt.Errorf("failed to apply config to machine group")
+			dump, _ := httputil.DumpResponse(r, true)
+			fmt.Printf("%s\n", dump)
+			return
+		}
+		err = fmt.Errorf("%v:%v", errMsg.Code, errMsg.Message)
+		return
+	}
+	return
+}
+
+// RemoveConfigFromMachineGroup removes config from machine group.
+func (p *LogProject) RemoveConfigFromMachineGroup(confName, groupName string) (err error) {
+	h := map[string]string{
+		"x-sls-bodyrawsize": "0",
+	}
+
+	uri := fmt.Sprintf("/machinegroups/%v/configs/%v", groupName, confName)
+	r, err := request(p, "DELETE", uri, h, nil)
+	if err != nil {
+		return
+	}
+
+	buf, err := ioutil.ReadAll(r.Body)
+	if err != nil {
+		return
+	}
+
+	if r.StatusCode != http.StatusOK {
+		errMsg := &errorMessage{}
+		err = json.Unmarshal(buf, errMsg)
+		if err != nil {
+			err = fmt.Errorf("failed to remove config from machine group")
+			dump, _ := httputil.DumpResponse(r, true)
+			fmt.Printf("%s\n", dump)
+			return
+		}
+		err = fmt.Errorf("%v:%v", errMsg.Code, errMsg.Message)
+		return
+	}
+	return
+}

pkg/logs/alils/log_store.go

@@ -0,0 +1,271 @@
+package alils
+
+import (
+	"encoding/json"
+	"fmt"
+	"io/ioutil"
+	"net/http"
+	"net/http/httputil"
+	"strconv"
+
+	lz4 "github.com/cloudflare/golz4"
+	"github.com/gogo/protobuf/proto"
+)
+
+// LogStore Store the logs
+type LogStore struct {
+	Name       string `json:"logstoreName"`
+	TTL        int
+	ShardCount int
+
+	CreateTime     uint32
+	LastModifyTime uint32
+
+	project *LogProject
+}
+
+// Shard define the Log Shard
+type Shard struct {
+	ShardID int `json:"shardID"`
+}
+
+// ListShards returns shard id list of this logstore.
+func (s *LogStore) ListShards() (shardIDs []int, err error) {
+	h := map[string]string{
+		"x-sls-bodyrawsize": "0",
+	}
+
+	uri := fmt.Sprintf("/logstores/%v/shards", s.Name)
+	r, err := request(s.project, "GET", uri, h, nil)
+	if err != nil {
+		return
+	}
+
+	buf, err := ioutil.ReadAll(r.Body)
+	if err != nil {
+		return
+	}
+
+	if r.StatusCode != http.StatusOK {
+		errMsg := &errorMessage{}
+		err = json.Unmarshal(buf, errMsg)
+		if err != nil {
+			err = fmt.Errorf("failed to list logstore")
+			dump, _ := httputil.DumpResponse(r, true)
+			fmt.Println(dump)
+			return
+		}
+		err = fmt.Errorf("%v:%v", errMsg.Code, errMsg.Message)
+		return
+	}
+
+	var shards []*Shard
+	err = json.Unmarshal(buf, &shards)
+	if err != nil {
+		return
+	}
+
+	for _, v := range shards {
+		shardIDs = append(shardIDs, v.ShardID)
+	}
+	return
+}
+
+// PutLogs put logs into logstore.
+// The callers should transform user logs into LogGroup.
+func (s *LogStore) PutLogs(lg *LogGroup) (err error) {
+	body, err := proto.Marshal(lg)
+	if err != nil {
+		return
+	}
+
+	// Compresse body with lz4
+	out := make([]byte, lz4.CompressBound(body))
+	n, err := lz4.Compress(body, out)
+	if err != nil {
+		return
+	}
+
+	h := map[string]string{
+		"x-sls-compresstype": "lz4",
+		"x-sls-bodyrawsize":  fmt.Sprintf("%v", len(body)),
+		"Content-Type":       "application/x-protobuf",
+	}
+
+	uri := fmt.Sprintf("/logstores/%v", s.Name)
+	r, err := request(s.project, "POST", uri, h, out[:n])
+	if err != nil {
+		return
+	}
+
+	buf, err := ioutil.ReadAll(r.Body)
+	if err != nil {
+		return
+	}
+
+	if r.StatusCode != http.StatusOK {
+		errMsg := &errorMessage{}
+		err = json.Unmarshal(buf, errMsg)
+		if err != nil {
+			err = fmt.Errorf("failed to put logs")
+			dump, _ := httputil.DumpResponse(r, true)
+			fmt.Println(dump)
+			return
+		}
+		err = fmt.Errorf("%v:%v", errMsg.Code, errMsg.Message)
+		return
+	}
+	return
+}
+
+// GetCursor gets log cursor of one shard specified by shardID.
+// The from can be in three form: a) unix timestamp in seccond, b) "begin", c) "end".
+// For more detail please read: http://gitlab.alibaba-inc.com/sls/doc/blob/master/api/shard.md#logstore
+func (s *LogStore) GetCursor(shardID int, from string) (cursor string, err error) {
+	h := map[string]string{
+		"x-sls-bodyrawsize": "0",
+	}
+
+	uri := fmt.Sprintf("/logstores/%v/shards/%v?type=cursor&from=%v",
+		s.Name, shardID, from)
+
+	r, err := request(s.project, "GET", uri, h, nil)
+	if err != nil {
+		return
+	}
+
+	buf, err := ioutil.ReadAll(r.Body)
+	if err != nil {
+		return
+	}
+
+	if r.StatusCode != http.StatusOK {
+		errMsg := &errorMessage{}
+		err = json.Unmarshal(buf, errMsg)
+		if err != nil {
+			err = fmt.Errorf("failed to get cursor")
+			dump, _ := httputil.DumpResponse(r, true)
+			fmt.Println(dump)
+			return
+		}
+		err = fmt.Errorf("%v:%v", errMsg.Code, errMsg.Message)
+		return
+	}
+
+	type Body struct {
+		Cursor string
+	}
+	body := &Body{}
+
+	err = json.Unmarshal(buf, body)
+	if err != nil {
+		return
+	}
+	cursor = body.Cursor
+	return
+}
+
+// GetLogsBytes gets logs binary data from shard specified by shardID according cursor.
+// The logGroupMaxCount is the max number of logGroup could be returned.
+// The nextCursor is the next curosr can be used to read logs at next time.
+func (s *LogStore) GetLogsBytes(shardID int, cursor string,
+	logGroupMaxCount int) (out []byte, nextCursor string, err error) {
+
+	h := map[string]string{
+		"x-sls-bodyrawsize": "0",
+		"Accept":            "application/x-protobuf",
+		"Accept-Encoding":   "lz4",
+	}
+
+	uri := fmt.Sprintf("/logstores/%v/shards/%v?type=logs&cursor=%v&count=%v",
+		s.Name, shardID, cursor, logGroupMaxCount)
+
+	r, err := request(s.project, "GET", uri, h, nil)
+	if err != nil {
+		return
+	}
+
+	buf, err := ioutil.ReadAll(r.Body)
+	if err != nil {
+		return
+	}
+
+	if r.StatusCode != http.StatusOK {
+		errMsg := &errorMessage{}
+		err = json.Unmarshal(buf, errMsg)
+		if err != nil {
+			err = fmt.Errorf("failed to get cursor")
+			dump, _ := httputil.DumpResponse(r, true)
+			fmt.Println(dump)
+			return
+		}
+		err = fmt.Errorf("%v:%v", errMsg.Code, errMsg.Message)
+		return
+	}
+
+	v, ok := r.Header["X-Sls-Compresstype"]
+	if !ok || len(v) == 0 {
+		err = fmt.Errorf("can't find 'x-sls-compresstype' header")
+		return
+	}
+	if v[0] != "lz4" {
+		err = fmt.Errorf("unexpected compress type:%v", v[0])
+		return
+	}
+
+	v, ok = r.Header["X-Sls-Cursor"]
+	if !ok || len(v) == 0 {
+		err = fmt.Errorf("can't find 'x-sls-cursor' header")
+		return
+	}
+	nextCursor = v[0]
+
+	v, ok = r.Header["X-Sls-Bodyrawsize"]
+	if !ok || len(v) == 0 {
+		err = fmt.Errorf("can't find 'x-sls-bodyrawsize' header")
+		return
+	}
+	bodyRawSize, err := strconv.Atoi(v[0])
+	if err != nil {
+		return
+	}
+
+	out = make([]byte, bodyRawSize)
+	err = lz4.Uncompress(buf, out)
+	if err != nil {
+		return
+	}
+
+	return
+}
+
+// LogsBytesDecode decodes logs binary data retruned by GetLogsBytes API
+func LogsBytesDecode(data []byte) (gl *LogGroupList, err error) {
+
+	gl = &LogGroupList{}
+	err = proto.Unmarshal(data, gl)
+	if err != nil {
+		return
+	}
+
+	return
+}
+
+// GetLogs gets logs from shard specified by shardID according cursor.
+// The logGroupMaxCount is the max number of logGroup could be returned.
+// The nextCursor is the next curosr can be used to read logs at next time.
+func (s *LogStore) GetLogs(shardID int, cursor string,
+	logGroupMaxCount int) (gl *LogGroupList, nextCursor string, err error) {
+
+	out, nextCursor, err := s.GetLogsBytes(shardID, cursor, logGroupMaxCount)
+	if err != nil {
+		return
+	}
+
+	gl, err = LogsBytesDecode(out)
+	if err != nil {
+		return
+	}
+
+	return
+}

pkg/logs/alils/machine_group.go

@@ -0,0 +1,91 @@
+package alils
+
+import (
+	"encoding/json"
+	"fmt"
+	"io/ioutil"
+	"net/http"
+	"net/http/httputil"
+)
+
+// MachineGroupAttribute define the Attribute
+type MachineGroupAttribute struct {
+	ExternalName string `json:"externalName"`
+	TopicName    string `json:"groupTopic"`
+}
+
+// MachineGroup define the machine Group
+type MachineGroup struct {
+	Name          string   `json:"groupName"`
+	Type          string   `json:"groupType"`
+	MachineIDType string   `json:"machineIdentifyType"`
+	MachineIDList []string `json:"machineList"`
+
+	Attribute MachineGroupAttribute `json:"groupAttribute"`
+
+	CreateTime     uint32
+	LastModifyTime uint32
+
+	project *LogProject
+}
+
+// Machine define the Machine
+type Machine struct {
+	IP            string
+	UniqueID      string `json:"machine-uniqueid"`
+	UserdefinedID string `json:"userdefined-id"`
+}
+
+// MachineList define the Machine List
+type MachineList struct {
+	Total    int
+	Machines []*Machine
+}
+
+// ListMachines returns machine list of this machine group.
+func (m *MachineGroup) ListMachines() (ms []*Machine, total int, err error) {
+	h := map[string]string{
+		"x-sls-bodyrawsize": "0",
+	}
+
+	uri := fmt.Sprintf("/machinegroups/%v/machines", m.Name)
+	r, err := request(m.project, "GET", uri, h, nil)
+	if err != nil {
+		return
+	}
+
+	buf, err := ioutil.ReadAll(r.Body)
+	if err != nil {
+		return
+	}
+
+	if r.StatusCode != http.StatusOK {
+		errMsg := &errorMessage{}
+		err = json.Unmarshal(buf, errMsg)
+		if err != nil {
+			err = fmt.Errorf("failed to remove config from machine group")
+			dump, _ := httputil.DumpResponse(r, true)
+			fmt.Println(dump)
+			return
+		}
+		err = fmt.Errorf("%v:%v", errMsg.Code, errMsg.Message)
+		return
+	}
+
+	body := &MachineList{}
+	err = json.Unmarshal(buf, body)
+	if err != nil {
+		return
+	}
+
+	ms = body.Machines
+	total = body.Total
+
+	return
+}
+
+// GetAppliedConfigs returns applied configs of this machine group.
+func (m *MachineGroup) GetAppliedConfigs() (confNames []string, err error) {
+	confNames, err = m.project.GetAppliedConfigs(m.Name)
+	return
+}

pkg/logs/alils/request.go

@@ -0,0 +1,62 @@
+package alils
+
+import (
+	"bytes"
+	"crypto/md5"
+	"fmt"
+	"net/http"
+)
+
+// request sends a request to SLS.
+func request(project *LogProject, method, uri string, headers map[string]string,
+	body []byte) (resp *http.Response, err error) {
+
+	// The caller should provide 'x-sls-bodyrawsize' header
+	if _, ok := headers["x-sls-bodyrawsize"]; !ok {
+		err = fmt.Errorf("Can't find 'x-sls-bodyrawsize' header")
+		return
+	}
+
+	// SLS public request headers
+	headers["Host"] = project.Name + "." + project.Endpoint
+	headers["Date"] = nowRFC1123()
+	headers["x-sls-apiversion"] = version
+	headers["x-sls-signaturemethod"] = signatureMethod
+	if body != nil {
+		bodyMD5 := fmt.Sprintf("%X", md5.Sum(body))
+		headers["Content-MD5"] = bodyMD5
+
+		if _, ok := headers["Content-Type"]; !ok {
+			err = fmt.Errorf("Can't find 'Content-Type' header")
+			return
+		}
+	}
+
+	// Calc Authorization
+	// Authorization = "SLS <AccessKeyID>:<Signature>"
+	digest, err := signature(project, method, uri, headers)
+	if err != nil {
+		return
+	}
+	auth := fmt.Sprintf("SLS %v:%v", project.AccessKeyID, digest)
+	headers["Authorization"] = auth
+
+	// Initialize http request
+	reader := bytes.NewReader(body)
+	urlStr := fmt.Sprintf("http://%v.%v%v", project.Name, project.Endpoint, uri)
+	req, err := http.NewRequest(method, urlStr, reader)
+	if err != nil {
+		return
+	}
+	for k, v := range headers {
+		req.Header.Add(k, v)
+	}
+
+	// Get ready to do request
+	resp, err = http.DefaultClient.Do(req)
+	if err != nil {
+		return
+	}
+
+	return
+}

pkg/logs/alils/signature.go

@@ -0,0 +1,111 @@
+package alils
+
+import (
+	"crypto/hmac"
+	"crypto/sha1"
+	"encoding/base64"
+	"fmt"
+	"net/url"
+	"sort"
+	"strings"
+	"time"
+)
+
+// GMT location
+var gmtLoc = time.FixedZone("GMT", 0)
+
+// NowRFC1123 returns now time in RFC1123 format with GMT timezone,
+// eg. "Mon, 02 Jan 2006 15:04:05 GMT".
+func nowRFC1123() string {
+	return time.Now().In(gmtLoc).Format(time.RFC1123)
+}
+
+// signature calculates a request's signature digest.
+func signature(project *LogProject, method, uri string,
+	headers map[string]string) (digest string, err error) {
+	var contentMD5, contentType, date, canoHeaders, canoResource string
+	var slsHeaderKeys sort.StringSlice
+
+	// SignString = VERB + "\n"
+	//              + CONTENT-MD5 + "\n"
+	//              + CONTENT-TYPE + "\n"
+	//              + DATE + "\n"
+	//              + CanonicalizedSLSHeaders + "\n"
+	//              + CanonicalizedResource
+
+	if val, ok := headers["Content-MD5"]; ok {
+		contentMD5 = val
+	}
+
+	if val, ok := headers["Content-Type"]; ok {
+		contentType = val
+	}
+
+	date, ok := headers["Date"]
+	if !ok {
+		err = fmt.Errorf("Can't find 'Date' header")
+		return
+	}
+
+	// Calc CanonicalizedSLSHeaders
+	slsHeaders := make(map[string]string, len(headers))
+	for k, v := range headers {
+		l := strings.TrimSpace(strings.ToLower(k))
+		if strings.HasPrefix(l, "x-sls-") {
+			slsHeaders[l] = strings.TrimSpace(v)
+			slsHeaderKeys = append(slsHeaderKeys, l)
+		}
+	}
+
+	sort.Sort(slsHeaderKeys)
+	for i, k := range slsHeaderKeys {
+		canoHeaders += k + ":" + slsHeaders[k]
+		if i+1 < len(slsHeaderKeys) {
+			canoHeaders += "\n"
+		}
+	}
+
+	// Calc CanonicalizedResource
+	u, err := url.Parse(uri)
+	if err != nil {
+		return
+	}
+
+	canoResource += url.QueryEscape(u.Path)
+	if u.RawQuery != "" {
+		var keys sort.StringSlice
+
+		vals := u.Query()
+		for k := range vals {
+			keys = append(keys, k)
+		}
+
+		sort.Sort(keys)
+		canoResource += "?"
+		for i, k := range keys {
+			if i > 0 {
+				canoResource += "&"
+			}
+
+			for _, v := range vals[k] {
+				canoResource += k + "=" + v
+			}
+		}
+	}
+
+	signStr := method + "\n" +
+		contentMD5 + "\n" +
+		contentType + "\n" +
+		date + "\n" +
+		canoHeaders + "\n" +
+		canoResource
+
+	// Signature = base64(hmac-sha1(UTF8-Encoding-Of(SignString)，AccessKeySecret))
+	mac := hmac.New(sha1.New, []byte(project.AccessKeySecret))
+	_, err = mac.Write([]byte(signStr))
+	if err != nil {
+		return
+	}
+	digest = base64.StdEncoding.EncodeToString(mac.Sum(nil))
+	return
+}

pkg/logs/conn.go

@@ -0,0 +1,119 @@
+// Copyright 2014 beego Author. All Rights Reserved.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//      http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package logs
+
+import (
+	"encoding/json"
+	"io"
+	"net"
+	"time"
+)
+
+// connWriter implements LoggerInterface.
+// it writes messages in keep-live tcp connection.
+type connWriter struct {
+	lg             *logWriter
+	innerWriter    io.WriteCloser
+	ReconnectOnMsg bool   `json:"reconnectOnMsg"`
+	Reconnect      bool   `json:"reconnect"`
+	Net            string `json:"net"`
+	Addr           string `json:"addr"`
+	Level          int    `json:"level"`
+}
+
+// NewConn create new ConnWrite returning as LoggerInterface.
+func NewConn() Logger {
+	conn := new(connWriter)
+	conn.Level = LevelTrace
+	return conn
+}
+
+// Init init connection writer with json config.
+// json config only need key "level".
+func (c *connWriter) Init(jsonConfig string) error {
+	return json.Unmarshal([]byte(jsonConfig), c)
+}
+
+// WriteMsg write message in connection.
+// if connection is down, try to re-connect.
+func (c *connWriter) WriteMsg(when time.Time, msg string, level int) error {
+	if level > c.Level {
+		return nil
+	}
+	if c.needToConnectOnMsg() {
+		err := c.connect()
+		if err != nil {
+			return err
+		}
+	}
+
+	if c.ReconnectOnMsg {
+		defer c.innerWriter.Close()
+	}
+
+	_, err := c.lg.writeln(when, msg)
+	if err != nil {
+		return err
+	}
+	return nil
+}
+
+// Flush implementing method. empty.
+func (c *connWriter) Flush() {
+
+}
+
+// Destroy destroy connection writer and close tcp listener.
+func (c *connWriter) Destroy() {
+	if c.innerWriter != nil {
+		c.innerWriter.Close()
+	}
+}
+
+func (c *connWriter) connect() error {
+	if c.innerWriter != nil {
+		c.innerWriter.Close()
+		c.innerWriter = nil
+	}
+
+	conn, err := net.Dial(c.Net, c.Addr)
+	if err != nil {
+		return err
+	}
+
+	if tcpConn, ok := conn.(*net.TCPConn); ok {
+		tcpConn.SetKeepAlive(true)
+	}
+
+	c.innerWriter = conn
+	c.lg = newLogWriter(conn)
+	return nil
+}
+
+func (c *connWriter) needToConnectOnMsg() bool {
+	if c.Reconnect {
+		return true
+	}
+
+	if c.innerWriter == nil {
+		return true
+	}
+
+	return c.ReconnectOnMsg
+}
+
+func init() {
+	Register(AdapterConn, NewConn)
+}

pkg/logs/conn_test.go

@@ -0,0 +1,79 @@
+// Copyright 2014 beego Author. All Rights Reserved.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//      http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package logs
+
+import (
+	"net"
+	"os"
+	"testing"
+)
+
+// ConnTCPListener takes a TCP listener and accepts n TCP connections
+// Returns connections using connChan
+func connTCPListener(t *testing.T, n int, ln net.Listener, connChan chan<- net.Conn) {
+
+	// Listen and accept n incoming connections
+	for i := 0; i < n; i++ {
+		conn, err := ln.Accept()
+		if err != nil {
+			t.Log("Error accepting connection: ", err.Error())
+			os.Exit(1)
+		}
+
+		// Send accepted connection to channel
+		connChan <- conn
+	}
+	ln.Close()
+	close(connChan)
+}
+
+func TestConn(t *testing.T) {
+	log := NewLogger(1000)
+	log.SetLogger("conn", `{"net":"tcp","addr":":7020"}`)
+	log.Informational("informational")
+}
+
+func TestReconnect(t *testing.T) {
+	// Setup connection listener
+	newConns := make(chan net.Conn)
+	connNum := 2
+	ln, err := net.Listen("tcp", ":6002")
+	if err != nil {
+		t.Log("Error listening:", err.Error())
+		os.Exit(1)
+	}
+	go connTCPListener(t, connNum, ln, newConns)
+
+	// Setup logger
+	log := NewLogger(1000)
+	log.SetPrefix("test")
+	log.SetLogger(AdapterConn, `{"net":"tcp","reconnect":true,"level":6,"addr":":6002"}`)
+	log.Informational("informational 1")
+
+	// Refuse first connection
+	first := <-newConns
+	first.Close()
+
+	// Send another log after conn closed
+	log.Informational("informational 2")
+
+	// Check if there was a second connection attempt
+	select {
+	case second := <-newConns:
+		second.Close()
+	default:
+		t.Error("Did not reconnect")
+	}
+}

pkg/logs/console.go

@@ -0,0 +1,99 @@
+// Copyright 2014 beego Author. All Rights Reserved.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//      http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package logs
+
+import (
+	"encoding/json"
+	"os"
+	"strings"
+	"time"
+
+	"github.com/shiena/ansicolor"
+)
+
+// brush is a color join function
+type brush func(string) string
+
+// newBrush return a fix color Brush
+func newBrush(color string) brush {
+	pre := "\033["
+	reset := "\033[0m"
+	return func(text string) string {
+		return pre + color + "m" + text + reset
+	}
+}
+
+var colors = []brush{
+	newBrush("1;37"), // Emergency          white
+	newBrush("1;36"), // Alert              cyan
+	newBrush("1;35"), // Critical           magenta
+	newBrush("1;31"), // Error              red
+	newBrush("1;33"), // Warning            yellow
+	newBrush("1;32"), // Notice             green
+	newBrush("1;34"), // Informational      blue
+	newBrush("1;44"), // Debug              Background blue
+}
+
+// consoleWriter implements LoggerInterface and writes messages to terminal.
+type consoleWriter struct {
+	lg       *logWriter
+	Level    int  `json:"level"`
+	Colorful bool `json:"color"` //this filed is useful only when system's terminal supports color
+}
+
+// NewConsole create ConsoleWriter returning as LoggerInterface.
+func NewConsole() Logger {
+	cw := &consoleWriter{
+		lg:       newLogWriter(ansicolor.NewAnsiColorWriter(os.Stdout)),
+		Level:    LevelDebug,
+		Colorful: true,
+	}
+	return cw
+}
+
+// Init init console logger.
+// jsonConfig like '{"level":LevelTrace}'.
+func (c *consoleWriter) Init(jsonConfig string) error {
+	if len(jsonConfig) == 0 {
+		return nil
+	}
+	return json.Unmarshal([]byte(jsonConfig), c)
+}
+
+// WriteMsg write message in console.
+func (c *consoleWriter) WriteMsg(when time.Time, msg string, level int) error {
+	if level > c.Level {
+		return nil
+	}
+	if c.Colorful {
+		msg = strings.Replace(msg, levelPrefix[level], colors[level](levelPrefix[level]), 1)
+	}
+	c.lg.writeln(when, msg)
+	return nil
+}
+
+// Destroy implementing method. empty.
+func (c *consoleWriter) Destroy() {
+
+}
+
+// Flush implementing method. empty.
+func (c *consoleWriter) Flush() {
+
+}
+
+func init() {
+	Register(AdapterConsole, NewConsole)
+}

pkg/logs/console_test.go

@@ -0,0 +1,64 @@
+// Copyright 2014 beego Author. All Rights Reserved.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//      http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package logs
+
+import (
+	"testing"
+	"time"
+)
+
+// Try each log level in decreasing order of priority.
+func testConsoleCalls(bl *BeeLogger) {
+	bl.Emergency("emergency")
+	bl.Alert("alert")
+	bl.Critical("critical")
+	bl.Error("error")
+	bl.Warning("warning")
+	bl.Notice("notice")
+	bl.Informational("informational")
+	bl.Debug("debug")
+}
+
+// Test console logging by visually comparing the lines being output with and
+// without a log level specification.
+func TestConsole(t *testing.T) {
+	log1 := NewLogger(10000)
+	log1.EnableFuncCallDepth(true)
+	log1.SetLogger("console", "")
+	testConsoleCalls(log1)
+
+	log2 := NewLogger(100)
+	log2.SetLogger("console", `{"level":3}`)
+	testConsoleCalls(log2)
+}
+
+// Test console without color
+func TestConsoleNoColor(t *testing.T) {
+	log := NewLogger(100)
+	log.SetLogger("console", `{"color":false}`)
+	testConsoleCalls(log)
+}
+
+// Test console async
+func TestConsoleAsync(t *testing.T) {
+	log := NewLogger(100)
+	log.SetLogger("console")
+	log.Async()
+	//log.Close()
+	testConsoleCalls(log)
+	for len(log.msgChan) != 0 {
+		time.Sleep(1 * time.Millisecond)
+	}
+}

pkg/logs/es/es.go

@@ -0,0 +1,102 @@
+package es
+
+import (
+	"context"
+	"encoding/json"
+	"errors"
+	"fmt"
+	"net/url"
+	"strings"
+	"time"
+
+	"github.com/elastic/go-elasticsearch/v6"
+	"github.com/elastic/go-elasticsearch/v6/esapi"
+
+	"github.com/astaxie/beego/logs"
+)
+
+// NewES return a LoggerInterface
+func NewES() logs.Logger {
+	cw := &esLogger{
+		Level: logs.LevelDebug,
+	}
+	return cw
+}
+
+// esLogger will log msg into ES
+// before you using this implementation,
+// please import this package
+// usually means that you can import this package in your main package
+// for example, anonymous:
+// import _ "github.com/astaxie/beego/logs/es"
+type esLogger struct {
+	*elasticsearch.Client
+	DSN   string `json:"dsn"`
+	Level int    `json:"level"`
+}
+
+// {"dsn":"http://localhost:9200/","level":1}
+func (el *esLogger) Init(jsonconfig string) error {
+	err := json.Unmarshal([]byte(jsonconfig), el)
+	if err != nil {
+		return err
+	}
+	if el.DSN == "" {
+		return errors.New("empty dsn")
+	} else if u, err := url.Parse(el.DSN); err != nil {
+		return err
+	} else if u.Path == "" {
+		return errors.New("missing prefix")
+	} else {
+		conn, err := elasticsearch.NewClient(elasticsearch.Config{
+			Addresses: []string{el.DSN},
+		})
+		if err != nil {
+			return err
+		}
+		el.Client = conn
+	}
+	return nil
+}
+
+// WriteMsg will write the msg and level into es
+func (el *esLogger) WriteMsg(when time.Time, msg string, level int) error {
+	if level > el.Level {
+		return nil
+	}
+
+	idx := LogDocument{
+		Timestamp: when.Format(time.RFC3339),
+		Msg:       msg,
+	}
+
+	body, err := json.Marshal(idx)
+	if err != nil {
+		return err
+	}
+	req := esapi.IndexRequest{
+		Index:        fmt.Sprintf("%04d.%02d.%02d", when.Year(), when.Month(), when.Day()),
+		DocumentType: "logs",
+		Body:         strings.NewReader(string(body)),
+	}
+	_, err = req.Do(context.Background(), el.Client)
+	return err
+}
+
+// Destroy is a empty method
+func (el *esLogger) Destroy() {
+}
+
+// Flush is a empty method
+func (el *esLogger) Flush() {
+
+}
+
+type LogDocument struct {
+	Timestamp string `json:"timestamp"`
+	Msg       string `json:"msg"`
+}
+
+func init() {
+	logs.Register(logs.AdapterEs, NewES)
+}

pkg/logs/file.go

@@ -0,0 +1,409 @@
+// Copyright 2014 beego Author. All Rights Reserved.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//      http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package logs
+
+import (
+	"bytes"
+	"encoding/json"
+	"errors"
+	"fmt"
+	"io"
+	"os"
+	"path"
+	"path/filepath"
+	"strconv"
+	"strings"
+	"sync"
+	"time"
+)
+
+// fileLogWriter implements LoggerInterface.
+// It writes messages by lines limit, file size limit, or time frequency.
+type fileLogWriter struct {
+	sync.RWMutex // write log order by order and  atomic incr maxLinesCurLines and maxSizeCurSize
+	// The opened file
+	Filename   string `json:"filename"`
+	fileWriter *os.File
+
+	// Rotate at line
+	MaxLines         int `json:"maxlines"`
+	maxLinesCurLines int
+
+	MaxFiles         int `json:"maxfiles"`
+	MaxFilesCurFiles int
+
+	// Rotate at size
+	MaxSize        int `json:"maxsize"`
+	maxSizeCurSize int
+
+	// Rotate daily
+	Daily         bool  `json:"daily"`
+	MaxDays       int64 `json:"maxdays"`
+	dailyOpenDate int
+	dailyOpenTime time.Time
+
+	// Rotate hourly
+	Hourly         bool  `json:"hourly"`
+	MaxHours       int64 `json:"maxhours"`
+	hourlyOpenDate int
+	hourlyOpenTime time.Time
+
+	Rotate bool `json:"rotate"`
+
+	Level int `json:"level"`
+
+	Perm string `json:"perm"`
+
+	RotatePerm string `json:"rotateperm"`
+
+	fileNameOnly, suffix string // like "project.log", project is fileNameOnly and .log is suffix
+}
+
+// newFileWriter create a FileLogWriter returning as LoggerInterface.
+func newFileWriter() Logger {
+	w := &fileLogWriter{
+		Daily:      true,
+		MaxDays:    7,
+		Hourly:     false,
+		MaxHours:   168,
+		Rotate:     true,
+		RotatePerm: "0440",
+		Level:      LevelTrace,
+		Perm:       "0660",
+		MaxLines:   10000000,
+		MaxFiles:   999,
+		MaxSize:    1 << 28,
+	}
+	return w
+}
+
+// Init file logger with json config.
+// jsonConfig like:
+//  {
+//  "filename":"logs/beego.log",
+//  "maxLines":10000,
+//  "maxsize":1024,
+//  "daily":true,
+//  "maxDays":15,
+//  "rotate":true,
+//      "perm":"0600"
+//  }
+func (w *fileLogWriter) Init(jsonConfig string) error {
+	err := json.Unmarshal([]byte(jsonConfig), w)
+	if err != nil {
+		return err
+	}
+	if len(w.Filename) == 0 {
+		return errors.New("jsonconfig must have filename")
+	}
+	w.suffix = filepath.Ext(w.Filename)
+	w.fileNameOnly = strings.TrimSuffix(w.Filename, w.suffix)
+	if w.suffix == "" {
+		w.suffix = ".log"
+	}
+	err = w.startLogger()
+	return err
+}
+
+// start file logger. create log file and set to locker-inside file writer.
+func (w *fileLogWriter) startLogger() error {
+	file, err := w.createLogFile()
+	if err != nil {
+		return err
+	}
+	if w.fileWriter != nil {
+		w.fileWriter.Close()
+	}
+	w.fileWriter = file
+	return w.initFd()
+}
+
+func (w *fileLogWriter) needRotateDaily(size int, day int) bool {
+	return (w.MaxLines > 0 && w.maxLinesCurLines >= w.MaxLines) ||
+		(w.MaxSize > 0 && w.maxSizeCurSize >= w.MaxSize) ||
+		(w.Daily && day != w.dailyOpenDate)
+}
+
+func (w *fileLogWriter) needRotateHourly(size int, hour int) bool {
+	return (w.MaxLines > 0 && w.maxLinesCurLines >= w.MaxLines) ||
+		(w.MaxSize > 0 && w.maxSizeCurSize >= w.MaxSize) ||
+		(w.Hourly && hour != w.hourlyOpenDate)
+
+}
+
+// WriteMsg write logger message into file.
+func (w *fileLogWriter) WriteMsg(when time.Time, msg string, level int) error {
+	if level > w.Level {
+		return nil
+	}
+	hd, d, h := formatTimeHeader(when)
+	msg = string(hd) + msg + "\n"
+	if w.Rotate {
+		w.RLock()
+		if w.needRotateHourly(len(msg), h) {
+			w.RUnlock()
+			w.Lock()
+			if w.needRotateHourly(len(msg), h) {
+				if err := w.doRotate(when); err != nil {
+					fmt.Fprintf(os.Stderr, "FileLogWriter(%q): %s\n", w.Filename, err)
+				}
+			}
+			w.Unlock()
+		} else if w.needRotateDaily(len(msg), d) {
+			w.RUnlock()
+			w.Lock()
+			if w.needRotateDaily(len(msg), d) {
+				if err := w.doRotate(when); err != nil {
+					fmt.Fprintf(os.Stderr, "FileLogWriter(%q): %s\n", w.Filename, err)
+				}
+			}
+			w.Unlock()
+		} else {
+			w.RUnlock()
+		}
+	}
+
+	w.Lock()
+	_, err := w.fileWriter.Write([]byte(msg))
+	if err == nil {
+		w.maxLinesCurLines++
+		w.maxSizeCurSize += len(msg)
+	}
+	w.Unlock()
+	return err
+}
+
+func (w *fileLogWriter) createLogFile() (*os.File, error) {
+	// Open the log file
+	perm, err := strconv.ParseInt(w.Perm, 8, 64)
+	if err != nil {
+		return nil, err
+	}
+
+	filepath := path.Dir(w.Filename)
+	os.MkdirAll(filepath, os.FileMode(perm))
+
+	fd, err := os.OpenFile(w.Filename, os.O_WRONLY|os.O_APPEND|os.O_CREATE, os.FileMode(perm))
+	if err == nil {
+		// Make sure file perm is user set perm cause of `os.OpenFile` will obey umask
+		os.Chmod(w.Filename, os.FileMode(perm))
+	}
+	return fd, err
+}
+
+func (w *fileLogWriter) initFd() error {
+	fd := w.fileWriter
+	fInfo, err := fd.Stat()
+	if err != nil {
+		return fmt.Errorf("get stat err: %s", err)
+	}
+	w.maxSizeCurSize = int(fInfo.Size())
+	w.dailyOpenTime = time.Now()
+	w.dailyOpenDate = w.dailyOpenTime.Day()
+	w.hourlyOpenTime = time.Now()
+	w.hourlyOpenDate = w.hourlyOpenTime.Hour()
+	w.maxLinesCurLines = 0
+	if w.Hourly {
+		go w.hourlyRotate(w.hourlyOpenTime)
+	} else if w.Daily {
+		go w.dailyRotate(w.dailyOpenTime)
+	}
+	if fInfo.Size() > 0 && w.MaxLines > 0 {
+		count, err := w.lines()
+		if err != nil {
+			return err
+		}
+		w.maxLinesCurLines = count
+	}
+	return nil
+}
+
+func (w *fileLogWriter) dailyRotate(openTime time.Time) {
+	y, m, d := openTime.Add(24 * time.Hour).Date()
+	nextDay := time.Date(y, m, d, 0, 0, 0, 0, openTime.Location())
+	tm := time.NewTimer(time.Duration(nextDay.UnixNano() - openTime.UnixNano() + 100))
+	<-tm.C
+	w.Lock()
+	if w.needRotateDaily(0, time.Now().Day()) {
+		if err := w.doRotate(time.Now()); err != nil {
+			fmt.Fprintf(os.Stderr, "FileLogWriter(%q): %s\n", w.Filename, err)
+		}
+	}
+	w.Unlock()
+}
+
+func (w *fileLogWriter) hourlyRotate(openTime time.Time) {
+	y, m, d := openTime.Add(1 * time.Hour).Date()
+	h, _, _ := openTime.Add(1 * time.Hour).Clock()
+	nextHour := time.Date(y, m, d, h, 0, 0, 0, openTime.Location())
+	tm := time.NewTimer(time.Duration(nextHour.UnixNano() - openTime.UnixNano() + 100))
+	<-tm.C
+	w.Lock()
+	if w.needRotateHourly(0, time.Now().Hour()) {
+		if err := w.doRotate(time.Now()); err != nil {
+			fmt.Fprintf(os.Stderr, "FileLogWriter(%q): %s\n", w.Filename, err)
+		}
+	}
+	w.Unlock()
+}
+
+func (w *fileLogWriter) lines() (int, error) {
+	fd, err := os.Open(w.Filename)
+	if err != nil {
+		return 0, err
+	}
+	defer fd.Close()
+
+	buf := make([]byte, 32768) // 32k
+	count := 0
+	lineSep := []byte{'\n'}
+
+	for {
+		c, err := fd.Read(buf)
+		if err != nil && err != io.EOF {
+			return count, err
+		}
+
+		count += bytes.Count(buf[:c], lineSep)
+
+		if err == io.EOF {
+			break
+		}
+	}
+
+	return count, nil
+}
+
+// DoRotate means it need to write file in new file.
+// new file name like xx.2013-01-01.log (daily) or xx.001.log (by line or size)
+func (w *fileLogWriter) doRotate(logTime time.Time) error {
+	// file exists
+	// Find the next available number
+	num := w.MaxFilesCurFiles + 1
+	fName := ""
+	format := ""
+	var openTime time.Time
+	rotatePerm, err := strconv.ParseInt(w.RotatePerm, 8, 64)
+	if err != nil {
+		return err
+	}
+
+	_, err = os.Lstat(w.Filename)
+	if err != nil {
+		//even if the file is not exist or other ,we should RESTART the logger
+		goto RESTART_LOGGER
+	}
+
+	if w.Hourly {
+		format = "2006010215"
+		openTime = w.hourlyOpenTime
+	} else if w.Daily {
+		format = "2006-01-02"
+		openTime = w.dailyOpenTime
+	}
+
+	// only when one of them be setted, then the file would be splited
+	if w.MaxLines > 0 || w.MaxSize > 0 {
+		for ; err == nil && num <= w.MaxFiles; num++ {
+			fName = w.fileNameOnly + fmt.Sprintf(".%s.%03d%s", logTime.Format(format), num, w.suffix)
+			_, err = os.Lstat(fName)
+		}
+	} else {
+		fName = w.fileNameOnly + fmt.Sprintf(".%s.%03d%s", openTime.Format(format), num, w.suffix)
+		_, err = os.Lstat(fName)
+		w.MaxFilesCurFiles = num
+	}
+
+	// return error if the last file checked still existed
+	if err == nil {
+		return fmt.Errorf("Rotate: Cannot find free log number to rename %s", w.Filename)
+	}
+
+	// close fileWriter before rename
+	w.fileWriter.Close()
+
+	// Rename the file to its new found name
+	// even if occurs error,we MUST guarantee to  restart new logger
+	err = os.Rename(w.Filename, fName)
+	if err != nil {
+		goto RESTART_LOGGER
+	}
+
+	err = os.Chmod(fName, os.FileMode(rotatePerm))
+
+RESTART_LOGGER:
+
+	startLoggerErr := w.startLogger()
+	go w.deleteOldLog()
+
+	if startLoggerErr != nil {
+		return fmt.Errorf("Rotate StartLogger: %s", startLoggerErr)
+	}
+	if err != nil {
+		return fmt.Errorf("Rotate: %s", err)
+	}
+	return nil
+}
+
+func (w *fileLogWriter) deleteOldLog() {
+	dir := filepath.Dir(w.Filename)
+	absolutePath, err := filepath.EvalSymlinks(w.Filename)
+	if err == nil {
+		dir = filepath.Dir(absolutePath)
+	}
+	filepath.Walk(dir, func(path string, info os.FileInfo, err error) (returnErr error) {
+		defer func() {
+			if r := recover(); r != nil {
+				fmt.Fprintf(os.Stderr, "Unable to delete old log '%s', error: %v\n", path, r)
+			}
+		}()
+
+		if info == nil {
+			return
+		}
+        if w.Hourly {
+            if !info.IsDir() && info.ModTime().Add(1 * time.Hour * time.Duration(w.MaxHours)).Before(time.Now()) {
+                if strings.HasPrefix(filepath.Base(path), filepath.Base(w.fileNameOnly)) &&
+                strings.HasSuffix(filepath.Base(path), w.suffix) {
+                    os.Remove(path)
+                }
+            }
+        } else if w.Daily {
+            if !info.IsDir() && info.ModTime().Add(24 * time.Hour * time.Duration(w.MaxDays)).Before(time.Now()) {
+                if strings.HasPrefix(filepath.Base(path), filepath.Base(w.fileNameOnly)) &&
+                strings.HasSuffix(filepath.Base(path), w.suffix) {
+                    os.Remove(path)
+                }
+            }
+        }
+		return
+	})
+}
+
+// Destroy close the file description, close file writer.
+func (w *fileLogWriter) Destroy() {
+	w.fileWriter.Close()
+}
+
+// Flush flush file logger.
+// there are no buffering messages in file logger in memory.
+// flush file means sync file from disk.
+func (w *fileLogWriter) Flush() {
+	w.fileWriter.Sync()
+}
+
+func init() {
+	Register(AdapterFile, newFileWriter)
+}

pkg/logs/file_test.go

@@ -0,0 +1,420 @@
+// Copyright 2014 beego Author. All Rights Reserved.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//      http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package logs
+
+import (
+	"bufio"
+	"fmt"
+	"io/ioutil"
+	"os"
+	"strconv"
+	"testing"
+	"time"
+)
+
+func TestFilePerm(t *testing.T) {
+	log := NewLogger(10000)
+	// use 0666 as test perm cause the default umask is 022
+	log.SetLogger("file", `{"filename":"test.log", "perm": "0666"}`)
+	log.Debug("debug")
+	log.Informational("info")
+	log.Notice("notice")
+	log.Warning("warning")
+	log.Error("error")
+	log.Alert("alert")
+	log.Critical("critical")
+	log.Emergency("emergency")
+	file, err := os.Stat("test.log")
+	if err != nil {
+		t.Fatal(err)
+	}
+	if file.Mode() != 0666 {
+		t.Fatal("unexpected log file permission")
+	}
+	os.Remove("test.log")
+}
+
+func TestFile1(t *testing.T) {
+	log := NewLogger(10000)
+	log.SetLogger("file", `{"filename":"test.log"}`)
+	log.Debug("debug")
+	log.Informational("info")
+	log.Notice("notice")
+	log.Warning("warning")
+	log.Error("error")
+	log.Alert("alert")
+	log.Critical("critical")
+	log.Emergency("emergency")
+	f, err := os.Open("test.log")
+	if err != nil {
+		t.Fatal(err)
+	}
+	b := bufio.NewReader(f)
+	lineNum := 0
+	for {
+		line, _, err := b.ReadLine()
+		if err != nil {
+			break
+		}
+		if len(line) > 0 {
+			lineNum++
+		}
+	}
+	var expected = LevelDebug + 1
+	if lineNum != expected {
+		t.Fatal(lineNum, "not "+strconv.Itoa(expected)+" lines")
+	}
+	os.Remove("test.log")
+}
+
+func TestFile2(t *testing.T) {
+	log := NewLogger(10000)
+	log.SetLogger("file", fmt.Sprintf(`{"filename":"test2.log","level":%d}`, LevelError))
+	log.Debug("debug")
+	log.Info("info")
+	log.Notice("notice")
+	log.Warning("warning")
+	log.Error("error")
+	log.Alert("alert")
+	log.Critical("critical")
+	log.Emergency("emergency")
+	f, err := os.Open("test2.log")
+	if err != nil {
+		t.Fatal(err)
+	}
+	b := bufio.NewReader(f)
+	lineNum := 0
+	for {
+		line, _, err := b.ReadLine()
+		if err != nil {
+			break
+		}
+		if len(line) > 0 {
+			lineNum++
+		}
+	}
+	var expected = LevelError + 1
+	if lineNum != expected {
+		t.Fatal(lineNum, "not "+strconv.Itoa(expected)+" lines")
+	}
+	os.Remove("test2.log")
+}
+
+func TestFileDailyRotate_01(t *testing.T) {
+	log := NewLogger(10000)
+	log.SetLogger("file", `{"filename":"test3.log","maxlines":4}`)
+	log.Debug("debug")
+	log.Info("info")
+	log.Notice("notice")
+	log.Warning("warning")
+	log.Error("error")
+	log.Alert("alert")
+	log.Critical("critical")
+	log.Emergency("emergency")
+	rotateName := "test3" + fmt.Sprintf(".%s.%03d", time.Now().Format("2006-01-02"), 1) + ".log"
+	b, err := exists(rotateName)
+	if !b || err != nil {
+		os.Remove("test3.log")
+		t.Fatal("rotate not generated")
+	}
+	os.Remove(rotateName)
+	os.Remove("test3.log")
+}
+
+func TestFileDailyRotate_02(t *testing.T) {
+	fn1 := "rotate_day.log"
+	fn2 := "rotate_day." + time.Now().Add(-24*time.Hour).Format("2006-01-02") + ".001.log"
+	testFileRotate(t, fn1, fn2, true, false)
+}
+
+func TestFileDailyRotate_03(t *testing.T) {
+	fn1 := "rotate_day.log"
+	fn := "rotate_day." + time.Now().Add(-24*time.Hour).Format("2006-01-02") + ".log"
+	os.Create(fn)
+	fn2 := "rotate_day." + time.Now().Add(-24*time.Hour).Format("2006-01-02") + ".001.log"
+	testFileRotate(t, fn1, fn2, true, false)
+	os.Remove(fn)
+}
+
+func TestFileDailyRotate_04(t *testing.T) {
+	fn1 := "rotate_day.log"
+	fn2 := "rotate_day." + time.Now().Add(-24*time.Hour).Format("2006-01-02") + ".001.log"
+	testFileDailyRotate(t, fn1, fn2)
+}
+
+func TestFileDailyRotate_05(t *testing.T) {
+	fn1 := "rotate_day.log"
+	fn := "rotate_day." + time.Now().Add(-24*time.Hour).Format("2006-01-02") + ".log"
+	os.Create(fn)
+	fn2 := "rotate_day." + time.Now().Add(-24*time.Hour).Format("2006-01-02") + ".001.log"
+	testFileDailyRotate(t, fn1, fn2)
+	os.Remove(fn)
+}
+func TestFileDailyRotate_06(t *testing.T) { //test file mode
+	log := NewLogger(10000)
+	log.SetLogger("file", `{"filename":"test3.log","maxlines":4}`)
+	log.Debug("debug")
+	log.Info("info")
+	log.Notice("notice")
+	log.Warning("warning")
+	log.Error("error")
+	log.Alert("alert")
+	log.Critical("critical")
+	log.Emergency("emergency")
+	rotateName := "test3" + fmt.Sprintf(".%s.%03d", time.Now().Format("2006-01-02"), 1) + ".log"
+	s, _ := os.Lstat(rotateName)
+	if s.Mode() != 0440 {
+		os.Remove(rotateName)
+		os.Remove("test3.log")
+		t.Fatal("rotate file mode error")
+	}
+	os.Remove(rotateName)
+	os.Remove("test3.log")
+}
+
+func TestFileHourlyRotate_01(t *testing.T) {
+	log := NewLogger(10000)
+    log.SetLogger("file", `{"filename":"test3.log","hourly":true,"maxlines":4}`)
+	log.Debug("debug")
+	log.Info("info")
+	log.Notice("notice")
+	log.Warning("warning")
+	log.Error("error")
+	log.Alert("alert")
+	log.Critical("critical")
+	log.Emergency("emergency")
+	rotateName := "test3" + fmt.Sprintf(".%s.%03d", time.Now().Format("2006010215"), 1) + ".log"
+	b, err := exists(rotateName)
+	if !b || err != nil {
+		os.Remove("test3.log")
+		t.Fatal("rotate not generated")
+	}
+	os.Remove(rotateName)
+	os.Remove("test3.log")
+}
+
+func TestFileHourlyRotate_02(t *testing.T) {
+	fn1 := "rotate_hour.log"
+	fn2 := "rotate_hour." + time.Now().Add(-1*time.Hour).Format("2006010215") + ".001.log"
+	testFileRotate(t, fn1, fn2, false, true)
+}
+
+func TestFileHourlyRotate_03(t *testing.T) {
+	fn1 := "rotate_hour.log"
+	fn := "rotate_hour." + time.Now().Add(-1*time.Hour).Format("2006010215") + ".log"
+	os.Create(fn)
+	fn2 := "rotate_hour." + time.Now().Add(-1*time.Hour).Format("2006010215") + ".001.log"
+	testFileRotate(t, fn1, fn2, false, true)
+	os.Remove(fn)
+}
+
+func TestFileHourlyRotate_04(t *testing.T) {
+	fn1 := "rotate_hour.log"
+	fn2 := "rotate_hour." + time.Now().Add(-1*time.Hour).Format("2006010215") + ".001.log"
+	testFileHourlyRotate(t, fn1, fn2)
+}
+
+func TestFileHourlyRotate_05(t *testing.T) {
+	fn1 := "rotate_hour.log"
+	fn := "rotate_hour." + time.Now().Add(-1*time.Hour).Format("2006010215") + ".log"
+	os.Create(fn)
+	fn2 := "rotate_hour." + time.Now().Add(-1*time.Hour).Format("2006010215") + ".001.log"
+	testFileHourlyRotate(t, fn1, fn2)
+	os.Remove(fn)
+}
+
+func TestFileHourlyRotate_06(t *testing.T) { //test file mode
+	log := NewLogger(10000)
+    log.SetLogger("file", `{"filename":"test3.log", "hourly":true, "maxlines":4}`)
+	log.Debug("debug")
+	log.Info("info")
+	log.Notice("notice")
+	log.Warning("warning")
+	log.Error("error")
+	log.Alert("alert")
+	log.Critical("critical")
+	log.Emergency("emergency")
+	rotateName := "test3" + fmt.Sprintf(".%s.%03d", time.Now().Format("2006010215"), 1) + ".log"
+	s, _ := os.Lstat(rotateName)
+	if s.Mode() != 0440 {
+		os.Remove(rotateName)
+		os.Remove("test3.log")
+		t.Fatal("rotate file mode error")
+	}
+	os.Remove(rotateName)
+	os.Remove("test3.log")
+}
+
+func testFileRotate(t *testing.T, fn1, fn2 string, daily, hourly bool) {
+	fw := &fileLogWriter{
+		Daily:      daily,
+		MaxDays:    7,
+		Hourly:     hourly,
+		MaxHours:   168,
+		Rotate:     true,
+		Level:      LevelTrace,
+		Perm:       "0660",
+		RotatePerm: "0440",
+	}
+
+    if daily {
+        fw.Init(fmt.Sprintf(`{"filename":"%v","maxdays":1}`, fn1))
+        fw.dailyOpenTime = time.Now().Add(-24 * time.Hour)
+        fw.dailyOpenDate = fw.dailyOpenTime.Day()
+    }
+
+    if hourly {
+        fw.Init(fmt.Sprintf(`{"filename":"%v","maxhours":1}`, fn1))
+        fw.hourlyOpenTime = time.Now().Add(-1 * time.Hour)
+        fw.hourlyOpenDate = fw.hourlyOpenTime.Day()
+    }
+
+    fw.WriteMsg(time.Now(), "this is a msg for test", LevelDebug)
+
+	for _, file := range []string{fn1, fn2} {
+		_, err := os.Stat(file)
+		if err != nil {
+			t.Log(err)
+			t.FailNow()
+		}
+		os.Remove(file)
+	}
+	fw.Destroy()
+}
+
+func testFileDailyRotate(t *testing.T, fn1, fn2 string) {
+	fw := &fileLogWriter{
+		Daily:      true,
+		MaxDays:    7,
+		Rotate:     true,
+		Level:      LevelTrace,
+		Perm:       "0660",
+		RotatePerm: "0440",
+	}
+	fw.Init(fmt.Sprintf(`{"filename":"%v","maxdays":1}`, fn1))
+	fw.dailyOpenTime = time.Now().Add(-24 * time.Hour)
+	fw.dailyOpenDate = fw.dailyOpenTime.Day()
+	today, _ := time.ParseInLocation("2006-01-02", time.Now().Format("2006-01-02"), fw.dailyOpenTime.Location())
+	today = today.Add(-1 * time.Second)
+	fw.dailyRotate(today)
+	for _, file := range []string{fn1, fn2} {
+		_, err := os.Stat(file)
+		if err != nil {
+			t.FailNow()
+		}
+		content, err := ioutil.ReadFile(file)
+		if err != nil {
+			t.FailNow()
+		}
+		if len(content) > 0 {
+			t.FailNow()
+		}
+		os.Remove(file)
+	}
+	fw.Destroy()
+}
+
+func testFileHourlyRotate(t *testing.T, fn1, fn2 string) {
+	fw := &fileLogWriter{
+        Hourly:      true,
+        MaxHours:    168,
+		Rotate:     true,
+		Level:      LevelTrace,
+		Perm:       "0660",
+		RotatePerm: "0440",
+	}
+	fw.Init(fmt.Sprintf(`{"filename":"%v","maxhours":1}`, fn1))
+	fw.hourlyOpenTime = time.Now().Add(-1 * time.Hour)
+	fw.hourlyOpenDate = fw.hourlyOpenTime.Hour()
+	hour, _ := time.ParseInLocation("2006010215", time.Now().Format("2006010215"), fw.hourlyOpenTime.Location())
+	hour = hour.Add(-1 * time.Second)
+	fw.hourlyRotate(hour)
+	for _, file := range []string{fn1, fn2} {
+		_, err := os.Stat(file)
+		if err != nil {
+			t.FailNow()
+		}
+		content, err := ioutil.ReadFile(file)
+		if err != nil {
+			t.FailNow()
+		}
+		if len(content) > 0 {
+			t.FailNow()
+		}
+		os.Remove(file)
+	}
+	fw.Destroy()
+}
+func exists(path string) (bool, error) {
+	_, err := os.Stat(path)
+	if err == nil {
+		return true, nil
+	}
+	if os.IsNotExist(err) {
+		return false, nil
+	}
+	return false, err
+}
+
+func BenchmarkFile(b *testing.B) {
+	log := NewLogger(100000)
+	log.SetLogger("file", `{"filename":"test4.log"}`)
+	for i := 0; i < b.N; i++ {
+		log.Debug("debug")
+	}
+	os.Remove("test4.log")
+}
+
+func BenchmarkFileAsynchronous(b *testing.B) {
+	log := NewLogger(100000)
+	log.SetLogger("file", `{"filename":"test4.log"}`)
+	log.Async()
+	for i := 0; i < b.N; i++ {
+		log.Debug("debug")
+	}
+	os.Remove("test4.log")
+}
+
+func BenchmarkFileCallDepth(b *testing.B) {
+	log := NewLogger(100000)
+	log.SetLogger("file", `{"filename":"test4.log"}`)
+	log.EnableFuncCallDepth(true)
+	log.SetLogFuncCallDepth(2)
+	for i := 0; i < b.N; i++ {
+		log.Debug("debug")
+	}
+	os.Remove("test4.log")
+}
+
+func BenchmarkFileAsynchronousCallDepth(b *testing.B) {
+	log := NewLogger(100000)
+	log.SetLogger("file", `{"filename":"test4.log"}`)
+	log.EnableFuncCallDepth(true)
+	log.SetLogFuncCallDepth(2)
+	log.Async()
+	for i := 0; i < b.N; i++ {
+		log.Debug("debug")
+	}
+	os.Remove("test4.log")
+}
+
+func BenchmarkFileOnGoroutine(b *testing.B) {
+	log := NewLogger(100000)
+	log.SetLogger("file", `{"filename":"test4.log"}`)
+	for i := 0; i < b.N; i++ {
+		go log.Debug("debug")
+	}
+	os.Remove("test4.log")
+}

pkg/logs/jianliao.go

@@ -0,0 +1,72 @@
+package logs
+
+import (
+	"encoding/json"
+	"fmt"
+	"net/http"
+	"net/url"
+	"time"
+)
+
+// JLWriter implements beego LoggerInterface and is used to send jiaoliao webhook
+type JLWriter struct {
+	AuthorName  string `json:"authorname"`
+	Title       string `json:"title"`
+	WebhookURL  string `json:"webhookurl"`
+	RedirectURL string `json:"redirecturl,omitempty"`
+	ImageURL    string `json:"imageurl,omitempty"`
+	Level       int    `json:"level"`
+}
+
+// newJLWriter create jiaoliao writer.
+func newJLWriter() Logger {
+	return &JLWriter{Level: LevelTrace}
+}
+
+// Init JLWriter with json config string
+func (s *JLWriter) Init(jsonconfig string) error {
+	return json.Unmarshal([]byte(jsonconfig), s)
+}
+
+// WriteMsg write message in smtp writer.
+// it will send an email with subject and only this message.
+func (s *JLWriter) WriteMsg(when time.Time, msg string, level int) error {
+	if level > s.Level {
+		return nil
+	}
+
+	text := fmt.Sprintf("%s %s", when.Format("2006-01-02 15:04:05"), msg)
+
+	form := url.Values{}
+	form.Add("authorName", s.AuthorName)
+	form.Add("title", s.Title)
+	form.Add("text", text)
+	if s.RedirectURL != "" {
+		form.Add("redirectUrl", s.RedirectURL)
+	}
+	if s.ImageURL != "" {
+		form.Add("imageUrl", s.ImageURL)
+	}
+
+	resp, err := http.PostForm(s.WebhookURL, form)
+	if err != nil {
+		return err
+	}
+	defer resp.Body.Close()
+	if resp.StatusCode != http.StatusOK {
+		return fmt.Errorf("Post webhook failed %s %d", resp.Status, resp.StatusCode)
+	}
+	return nil
+}
+
+// Flush implementing method. empty.
+func (s *JLWriter) Flush() {
+}
+
+// Destroy implementing method. empty.
+func (s *JLWriter) Destroy() {
+}
+
+func init() {
+	Register(AdapterJianLiao, newJLWriter)
+}

pkg/logs/log.go

@@ -0,0 +1,669 @@
+// Copyright 2014 beego Author. All Rights Reserved.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//      http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+// Package logs provide a general log interface
+// Usage:
+//
+// import "github.com/astaxie/beego/logs"
+//
+//	log := NewLogger(10000)
+//	log.SetLogger("console", "")
+//
+//	> the first params stand for how many channel
+//
+// Use it like this:
+//
+//	log.Trace("trace")
+//	log.Info("info")
+//	log.Warn("warning")
+//	log.Debug("debug")
+//	log.Critical("critical")
+//
+//  more docs http://beego.me/docs/module/logs.md
+package logs
+
+import (
+	"fmt"
+	"log"
+	"os"
+	"path"
+	"runtime"
+	"strconv"
+	"strings"
+	"sync"
+	"time"
+)
+
+// RFC5424 log message levels.
+const (
+	LevelEmergency = iota
+	LevelAlert
+	LevelCritical
+	LevelError
+	LevelWarning
+	LevelNotice
+	LevelInformational
+	LevelDebug
+)
+
+// levelLogLogger is defined to implement log.Logger
+// the real log level will be LevelEmergency
+const levelLoggerImpl = -1
+
+// Name for adapter with beego official support
+const (
+	AdapterConsole   = "console"
+	AdapterFile      = "file"
+	AdapterMultiFile = "multifile"
+	AdapterMail      = "smtp"
+	AdapterConn      = "conn"
+	AdapterEs        = "es"
+	AdapterJianLiao  = "jianliao"
+	AdapterSlack     = "slack"
+	AdapterAliLS     = "alils"
+)
+
+// Legacy log level constants to ensure backwards compatibility.
+const (
+	LevelInfo  = LevelInformational
+	LevelTrace = LevelDebug
+	LevelWarn  = LevelWarning
+)
+
+type newLoggerFunc func() Logger
+
+// Logger defines the behavior of a log provider.
+type Logger interface {
+	Init(config string) error
+	WriteMsg(when time.Time, msg string, level int) error
+	Destroy()
+	Flush()
+}
+
+var adapters = make(map[string]newLoggerFunc)
+var levelPrefix = [LevelDebug + 1]string{"[M]", "[A]", "[C]", "[E]", "[W]", "[N]", "[I]", "[D]"}
+
+// Register makes a log provide available by the provided name.
+// If Register is called twice with the same name or if driver is nil,
+// it panics.
+func Register(name string, log newLoggerFunc) {
+	if log == nil {
+		panic("logs: Register provide is nil")
+	}
+	if _, dup := adapters[name]; dup {
+		panic("logs: Register called twice for provider " + name)
+	}
+	adapters[name] = log
+}
+
+// BeeLogger is default logger in beego application.
+// it can contain several providers and log message into all providers.
+type BeeLogger struct {
+	lock                sync.Mutex
+	level               int
+	init                bool
+	enableFuncCallDepth bool
+	loggerFuncCallDepth int
+	asynchronous        bool
+	prefix              string
+	msgChanLen          int64
+	msgChan             chan *logMsg
+	signalChan          chan string
+	wg                  sync.WaitGroup
+	outputs             []*nameLogger
+}
+
+const defaultAsyncMsgLen = 1e3
+
+type nameLogger struct {
+	Logger
+	name string
+}
+
+type logMsg struct {
+	level int
+	msg   string
+	when  time.Time
+}
+
+var logMsgPool *sync.Pool
+
+// NewLogger returns a new BeeLogger.
+// channelLen means the number of messages in chan(used where asynchronous is true).
+// if the buffering chan is full, logger adapters write to file or other way.
+func NewLogger(channelLens ...int64) *BeeLogger {
+	bl := new(BeeLogger)
+	bl.level = LevelDebug
+	bl.loggerFuncCallDepth = 2
+	bl.msgChanLen = append(channelLens, 0)[0]
+	if bl.msgChanLen <= 0 {
+		bl.msgChanLen = defaultAsyncMsgLen
+	}
+	bl.signalChan = make(chan string, 1)
+	bl.setLogger(AdapterConsole)
+	return bl
+}
+
+// Async set the log to asynchronous and start the goroutine
+func (bl *BeeLogger) Async(msgLen ...int64) *BeeLogger {
+	bl.lock.Lock()
+	defer bl.lock.Unlock()
+	if bl.asynchronous {
+		return bl
+	}
+	bl.asynchronous = true
+	if len(msgLen) > 0 && msgLen[0] > 0 {
+		bl.msgChanLen = msgLen[0]
+	}
+	bl.msgChan = make(chan *logMsg, bl.msgChanLen)
+	logMsgPool = &sync.Pool{
+		New: func() interface{} {
+			return &logMsg{}
+		},
+	}
+	bl.wg.Add(1)
+	go bl.startLogger()
+	return bl
+}
+
+// SetLogger provides a given logger adapter into BeeLogger with config string.
+// config need to be correct JSON as string: {"interval":360}.
+func (bl *BeeLogger) setLogger(adapterName string, configs ...string) error {
+	config := append(configs, "{}")[0]
+	for _, l := range bl.outputs {
+		if l.name == adapterName {
+			return fmt.Errorf("logs: duplicate adaptername %q (you have set this logger before)", adapterName)
+		}
+	}
+
+	logAdapter, ok := adapters[adapterName]
+	if !ok {
+		return fmt.Errorf("logs: unknown adaptername %q (forgotten Register?)", adapterName)
+	}
+
+	lg := logAdapter()
+	err := lg.Init(config)
+	if err != nil {
+		fmt.Fprintln(os.Stderr, "logs.BeeLogger.SetLogger: "+err.Error())
+		return err
+	}
+	bl.outputs = append(bl.outputs, &nameLogger{name: adapterName, Logger: lg})
+	return nil
+}
+
+// SetLogger provides a given logger adapter into BeeLogger with config string.
+// config need to be correct JSON as string: {"interval":360}.
+func (bl *BeeLogger) SetLogger(adapterName string, configs ...string) error {
+	bl.lock.Lock()
+	defer bl.lock.Unlock()
+	if !bl.init {
+		bl.outputs = []*nameLogger{}
+		bl.init = true
+	}
+	return bl.setLogger(adapterName, configs...)
+}
+
+// DelLogger remove a logger adapter in BeeLogger.
+func (bl *BeeLogger) DelLogger(adapterName string) error {
+	bl.lock.Lock()
+	defer bl.lock.Unlock()
+	outputs := []*nameLogger{}
+	for _, lg := range bl.outputs {
+		if lg.name == adapterName {
+			lg.Destroy()
+		} else {
+			outputs = append(outputs, lg)
+		}
+	}
+	if len(outputs) == len(bl.outputs) {
+		return fmt.Errorf("logs: unknown adaptername %q (forgotten Register?)", adapterName)
+	}
+	bl.outputs = outputs
+	return nil
+}
+
+func (bl *BeeLogger) writeToLoggers(when time.Time, msg string, level int) {
+	for _, l := range bl.outputs {
+		err := l.WriteMsg(when, msg, level)
+		if err != nil {
+			fmt.Fprintf(os.Stderr, "unable to WriteMsg to adapter:%v,error:%v\n", l.name, err)
+		}
+	}
+}
+
+func (bl *BeeLogger) Write(p []byte) (n int, err error) {
+	if len(p) == 0 {
+		return 0, nil
+	}
+	// writeMsg will always add a '\n' character
+	if p[len(p)-1] == '\n' {
+		p = p[0 : len(p)-1]
+	}
+	// set levelLoggerImpl to ensure all log message will be write out
+	err = bl.writeMsg(levelLoggerImpl, string(p))
+	if err == nil {
+		return len(p), err
+	}
+	return 0, err
+}
+
+func (bl *BeeLogger) writeMsg(logLevel int, msg string, v ...interface{}) error {
+	if !bl.init {
+		bl.lock.Lock()
+		bl.setLogger(AdapterConsole)
+		bl.lock.Unlock()
+	}
+
+	if len(v) > 0 {
+		msg = fmt.Sprintf(msg, v...)
+	}
+
+	msg = bl.prefix + " " + msg
+
+	when := time.Now()
+	if bl.enableFuncCallDepth {
+		_, file, line, ok := runtime.Caller(bl.loggerFuncCallDepth)
+		if !ok {
+			file = "???"
+			line = 0
+		}
+		_, filename := path.Split(file)
+		msg = "[" + filename + ":" + strconv.Itoa(line) + "] " + msg
+	}
+
+	//set level info in front of filename info
+	if logLevel == levelLoggerImpl {
+		// set to emergency to ensure all log will be print out correctly
+		logLevel = LevelEmergency
+	} else {
+		msg = levelPrefix[logLevel] + " " + msg
+	}
+
+	if bl.asynchronous {
+		lm := logMsgPool.Get().(*logMsg)
+		lm.level = logLevel
+		lm.msg = msg
+		lm.when = when
+		if bl.outputs != nil {
+			bl.msgChan <- lm
+		} else {
+			logMsgPool.Put(lm)
+		}
+	} else {
+		bl.writeToLoggers(when, msg, logLevel)
+	}
+	return nil
+}
+
+// SetLevel Set log message level.
+// If message level (such as LevelDebug) is higher than logger level (such as LevelWarning),
+// log providers will not even be sent the message.
+func (bl *BeeLogger) SetLevel(l int) {
+	bl.level = l
+}
+
+// GetLevel Get Current log message level.
+func (bl *BeeLogger) GetLevel() int {
+	return bl.level
+}
+
+// SetLogFuncCallDepth set log funcCallDepth
+func (bl *BeeLogger) SetLogFuncCallDepth(d int) {
+	bl.loggerFuncCallDepth = d
+}
+
+// GetLogFuncCallDepth return log funcCallDepth for wrapper
+func (bl *BeeLogger) GetLogFuncCallDepth() int {
+	return bl.loggerFuncCallDepth
+}
+
+// EnableFuncCallDepth enable log funcCallDepth
+func (bl *BeeLogger) EnableFuncCallDepth(b bool) {
+	bl.enableFuncCallDepth = b
+}
+
+// set prefix
+func (bl *BeeLogger) SetPrefix(s string) {
+	bl.prefix = s
+}
+
+// start logger chan reading.
+// when chan is not empty, write logs.
+func (bl *BeeLogger) startLogger() {
+	gameOver := false
+	for {
+		select {
+		case bm := <-bl.msgChan:
+			bl.writeToLoggers(bm.when, bm.msg, bm.level)
+			logMsgPool.Put(bm)
+		case sg := <-bl.signalChan:
+			// Now should only send "flush" or "close" to bl.signalChan
+			bl.flush()
+			if sg == "close" {
+				for _, l := range bl.outputs {
+					l.Destroy()
+				}
+				bl.outputs = nil
+				gameOver = true
+			}
+			bl.wg.Done()
+		}
+		if gameOver {
+			break
+		}
+	}
+}
+
+// Emergency Log EMERGENCY level message.
+func (bl *BeeLogger) Emergency(format string, v ...interface{}) {
+	if LevelEmergency > bl.level {
+		return
+	}
+	bl.writeMsg(LevelEmergency, format, v...)
+}
+
+// Alert Log ALERT level message.
+func (bl *BeeLogger) Alert(format string, v ...interface{}) {
+	if LevelAlert > bl.level {
+		return
+	}
+	bl.writeMsg(LevelAlert, format, v...)
+}
+
+// Critical Log CRITICAL level message.
+func (bl *BeeLogger) Critical(format string, v ...interface{}) {
+	if LevelCritical > bl.level {
+		return
+	}
+	bl.writeMsg(LevelCritical, format, v...)
+}
+
+// Error Log ERROR level message.
+func (bl *BeeLogger) Error(format string, v ...interface{}) {
+	if LevelError > bl.level {
+		return
+	}
+	bl.writeMsg(LevelError, format, v...)
+}
+
+// Warning Log WARNING level message.
+func (bl *BeeLogger) Warning(format string, v ...interface{}) {
+	if LevelWarn > bl.level {
+		return
+	}
+	bl.writeMsg(LevelWarn, format, v...)
+}
+
+// Notice Log NOTICE level message.
+func (bl *BeeLogger) Notice(format string, v ...interface{}) {
+	if LevelNotice > bl.level {
+		return
+	}
+	bl.writeMsg(LevelNotice, format, v...)
+}
+
+// Informational Log INFORMATIONAL level message.
+func (bl *BeeLogger) Informational(format string, v ...interface{}) {
+	if LevelInfo > bl.level {
+		return
+	}
+	bl.writeMsg(LevelInfo, format, v...)
+}
+
+// Debug Log DEBUG level message.
+func (bl *BeeLogger) Debug(format string, v ...interface{}) {
+	if LevelDebug > bl.level {
+		return
+	}
+	bl.writeMsg(LevelDebug, format, v...)
+}
+
+// Warn Log WARN level message.
+// compatibility alias for Warning()
+func (bl *BeeLogger) Warn(format string, v ...interface{}) {
+	if LevelWarn > bl.level {
+		return
+	}
+	bl.writeMsg(LevelWarn, format, v...)
+}
+
+// Info Log INFO level message.
+// compatibility alias for Informational()
+func (bl *BeeLogger) Info(format string, v ...interface{}) {
+	if LevelInfo > bl.level {
+		return
+	}
+	bl.writeMsg(LevelInfo, format, v...)
+}
+
+// Trace Log TRACE level message.
+// compatibility alias for Debug()
+func (bl *BeeLogger) Trace(format string, v ...interface{}) {
+	if LevelDebug > bl.level {
+		return
+	}
+	bl.writeMsg(LevelDebug, format, v...)
+}
+
+// Flush flush all chan data.
+func (bl *BeeLogger) Flush() {
+	if bl.asynchronous {
+		bl.signalChan <- "flush"
+		bl.wg.Wait()
+		bl.wg.Add(1)
+		return
+	}
+	bl.flush()
+}
+
+// Close close logger, flush all chan data and destroy all adapters in BeeLogger.
+func (bl *BeeLogger) Close() {
+	if bl.asynchronous {
+		bl.signalChan <- "close"
+		bl.wg.Wait()
+		close(bl.msgChan)
+	} else {
+		bl.flush()
+		for _, l := range bl.outputs {
+			l.Destroy()
+		}
+		bl.outputs = nil
+	}
+	close(bl.signalChan)
+}
+
+// Reset close all outputs, and set bl.outputs to nil
+func (bl *BeeLogger) Reset() {
+	bl.Flush()
+	for _, l := range bl.outputs {
+		l.Destroy()
+	}
+	bl.outputs = nil
+}
+
+func (bl *BeeLogger) flush() {
+	if bl.asynchronous {
+		for {
+			if len(bl.msgChan) > 0 {
+				bm := <-bl.msgChan
+				bl.writeToLoggers(bm.when, bm.msg, bm.level)
+				logMsgPool.Put(bm)
+				continue
+			}
+			break
+		}
+	}
+	for _, l := range bl.outputs {
+		l.Flush()
+	}
+}
+
+// beeLogger references the used application logger.
+var beeLogger = NewLogger()
+
+// GetBeeLogger returns the default BeeLogger
+func GetBeeLogger() *BeeLogger {
+	return beeLogger
+}
+
+var beeLoggerMap = struct {
+	sync.RWMutex
+	logs map[string]*log.Logger
+}{
+	logs: map[string]*log.Logger{},
+}
+
+// GetLogger returns the default BeeLogger
+func GetLogger(prefixes ...string) *log.Logger {
+	prefix := append(prefixes, "")[0]
+	if prefix != "" {
+		prefix = fmt.Sprintf(`[%s] `, strings.ToUpper(prefix))
+	}
+	beeLoggerMap.RLock()
+	l, ok := beeLoggerMap.logs[prefix]
+	if ok {
+		beeLoggerMap.RUnlock()
+		return l
+	}
+	beeLoggerMap.RUnlock()
+	beeLoggerMap.Lock()
+	defer beeLoggerMap.Unlock()
+	l, ok = beeLoggerMap.logs[prefix]
+	if !ok {
+		l = log.New(beeLogger, prefix, 0)
+		beeLoggerMap.logs[prefix] = l
+	}
+	return l
+}
+
+// Reset will remove all the adapter
+func Reset() {
+	beeLogger.Reset()
+}
+
+// Async set the beelogger with Async mode and hold msglen messages
+func Async(msgLen ...int64) *BeeLogger {
+	return beeLogger.Async(msgLen...)
+}
+
+// SetLevel sets the global log level used by the simple logger.
+func SetLevel(l int) {
+	beeLogger.SetLevel(l)
+}
+
+// SetPrefix sets the prefix
+func SetPrefix(s string) {
+	beeLogger.SetPrefix(s)
+}
+
+// EnableFuncCallDepth enable log funcCallDepth
+func EnableFuncCallDepth(b bool) {
+	beeLogger.enableFuncCallDepth = b
+}
+
+// SetLogFuncCall set the CallDepth, default is 4
+func SetLogFuncCall(b bool) {
+	beeLogger.EnableFuncCallDepth(b)
+	beeLogger.SetLogFuncCallDepth(4)
+}
+
+// SetLogFuncCallDepth set log funcCallDepth
+func SetLogFuncCallDepth(d int) {
+	beeLogger.loggerFuncCallDepth = d
+}
+
+// SetLogger sets a new logger.
+func SetLogger(adapter string, config ...string) error {
+	return beeLogger.SetLogger(adapter, config...)
+}
+
+// Emergency logs a message at emergency level.
+func Emergency(f interface{}, v ...interface{}) {
+	beeLogger.Emergency(formatLog(f, v...))
+}
+
+// Alert logs a message at alert level.
+func Alert(f interface{}, v ...interface{}) {
+	beeLogger.Alert(formatLog(f, v...))
+}
+
+// Critical logs a message at critical level.
+func Critical(f interface{}, v ...interface{}) {
+	beeLogger.Critical(formatLog(f, v...))
+}
+
+// Error logs a message at error level.
+func Error(f interface{}, v ...interface{}) {
+	beeLogger.Error(formatLog(f, v...))
+}
+
+// Warning logs a message at warning level.
+func Warning(f interface{}, v ...interface{}) {
+	beeLogger.Warn(formatLog(f, v...))
+}
+
+// Warn compatibility alias for Warning()
+func Warn(f interface{}, v ...interface{}) {
+	beeLogger.Warn(formatLog(f, v...))
+}
+
+// Notice logs a message at notice level.
+func Notice(f interface{}, v ...interface{}) {
+	beeLogger.Notice(formatLog(f, v...))
+}
+
+// Informational logs a message at info level.
+func Informational(f interface{}, v ...interface{}) {
+	beeLogger.Info(formatLog(f, v...))
+}
+
+// Info compatibility alias for Warning()
+func Info(f interface{}, v ...interface{}) {
+	beeLogger.Info(formatLog(f, v...))
+}
+
+// Debug logs a message at debug level.
+func Debug(f interface{}, v ...interface{}) {
+	beeLogger.Debug(formatLog(f, v...))
+}
+
+// Trace logs a message at trace level.
+// compatibility alias for Warning()
+func Trace(f interface{}, v ...interface{}) {
+	beeLogger.Trace(formatLog(f, v...))
+}
+
+func formatLog(f interface{}, v ...interface{}) string {
+	var msg string
+	switch f.(type) {
+	case string:
+		msg = f.(string)
+		if len(v) == 0 {
+			return msg
+		}
+		if strings.Contains(msg, "%") && !strings.Contains(msg, "%%") {
+			//format string
+		} else {
+			//do not contain format char
+			msg += strings.Repeat(" %v", len(v))
+		}
+	default:
+		msg = fmt.Sprint(f)
+		if len(v) == 0 {
+			return msg
+		}
+		msg += strings.Repeat(" %v", len(v))
+	}
+	return fmt.Sprintf(msg, v...)
+}

pkg/logs/logger.go

@@ -0,0 +1,176 @@
+// Copyright 2014 beego Author. All Rights Reserved.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//      http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package logs
+
+import (
+	"io"
+	"runtime"
+	"sync"
+	"time"
+)
+
+type logWriter struct {
+	sync.Mutex
+	writer io.Writer
+}
+
+func newLogWriter(wr io.Writer) *logWriter {
+	return &logWriter{writer: wr}
+}
+
+func (lg *logWriter) writeln(when time.Time, msg string) (int, error) {
+	lg.Lock()
+	h, _, _ := formatTimeHeader(when)
+	n, err := lg.writer.Write(append(append(h, msg...), '\n'))
+	lg.Unlock()
+	return n, err
+}
+
+const (
+	y1  = `0123456789`
+	y2  = `0123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789`
+	y3  = `0000000000111111111122222222223333333333444444444455555555556666666666777777777788888888889999999999`
+	y4  = `0123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789`
+	mo1 = `000000000111`
+	mo2 = `123456789012`
+	d1  = `0000000001111111111222222222233`
+	d2  = `1234567890123456789012345678901`
+	h1  = `000000000011111111112222`
+	h2  = `012345678901234567890123`
+	mi1 = `000000000011111111112222222222333333333344444444445555555555`
+	mi2 = `012345678901234567890123456789012345678901234567890123456789`
+	s1  = `000000000011111111112222222222333333333344444444445555555555`
+	s2  = `012345678901234567890123456789012345678901234567890123456789`
+	ns1 = `0123456789`
+)
+
+func formatTimeHeader(when time.Time) ([]byte, int, int) {
+	y, mo, d := when.Date()
+	h, mi, s := when.Clock()
+	ns := when.Nanosecond() / 1000000
+	//len("2006/01/02 15:04:05.123 ")==24
+	var buf [24]byte
+
+	buf[0] = y1[y/1000%10]
+	buf[1] = y2[y/100]
+	buf[2] = y3[y-y/100*100]
+	buf[3] = y4[y-y/100*100]
+	buf[4] = '/'
+	buf[5] = mo1[mo-1]
+	buf[6] = mo2[mo-1]
+	buf[7] = '/'
+	buf[8] = d1[d-1]
+	buf[9] = d2[d-1]
+	buf[10] = ' '
+	buf[11] = h1[h]
+	buf[12] = h2[h]
+	buf[13] = ':'
+	buf[14] = mi1[mi]
+	buf[15] = mi2[mi]
+	buf[16] = ':'
+	buf[17] = s1[s]
+	buf[18] = s2[s]
+	buf[19] = '.'
+	buf[20] = ns1[ns/100]
+	buf[21] = ns1[ns%100/10]
+	buf[22] = ns1[ns%10]
+
+	buf[23] = ' '
+
+	return buf[0:], d, h
+}
+
+var (
+	green   = string([]byte{27, 91, 57, 55, 59, 52, 50, 109})
+	white   = string([]byte{27, 91, 57, 48, 59, 52, 55, 109})
+	yellow  = string([]byte{27, 91, 57, 55, 59, 52, 51, 109})
+	red     = string([]byte{27, 91, 57, 55, 59, 52, 49, 109})
+	blue    = string([]byte{27, 91, 57, 55, 59, 52, 52, 109})
+	magenta = string([]byte{27, 91, 57, 55, 59, 52, 53, 109})
+	cyan    = string([]byte{27, 91, 57, 55, 59, 52, 54, 109})
+
+	w32Green   = string([]byte{27, 91, 52, 50, 109})
+	w32White   = string([]byte{27, 91, 52, 55, 109})
+	w32Yellow  = string([]byte{27, 91, 52, 51, 109})
+	w32Red     = string([]byte{27, 91, 52, 49, 109})
+	w32Blue    = string([]byte{27, 91, 52, 52, 109})
+	w32Magenta = string([]byte{27, 91, 52, 53, 109})
+	w32Cyan    = string([]byte{27, 91, 52, 54, 109})
+
+	reset = string([]byte{27, 91, 48, 109})
+)
+
+var once sync.Once
+var colorMap map[string]string
+
+func initColor() {
+	if runtime.GOOS == "windows" {
+		green = w32Green
+		white = w32White
+		yellow = w32Yellow
+		red = w32Red
+		blue = w32Blue
+		magenta = w32Magenta
+		cyan = w32Cyan
+	}
+	colorMap = map[string]string{
+		//by color
+		"green":  green,
+		"white":  white,
+		"yellow": yellow,
+		"red":    red,
+		//by method
+		"GET":     blue,
+		"POST":    cyan,
+		"PUT":     yellow,
+		"DELETE":  red,
+		"PATCH":   green,
+		"HEAD":    magenta,
+		"OPTIONS": white,
+	}
+}
+
+// ColorByStatus return color by http code
+// 2xx return Green
+// 3xx return White
+// 4xx return Yellow
+// 5xx return Red
+func ColorByStatus(code int) string {
+	once.Do(initColor)
+	switch {
+	case code >= 200 && code < 300:
+		return colorMap["green"]
+	case code >= 300 && code < 400:
+		return colorMap["white"]
+	case code >= 400 && code < 500:
+		return colorMap["yellow"]
+	default:
+		return colorMap["red"]
+	}
+}
+
+// ColorByMethod return color by http code
+func ColorByMethod(method string) string {
+	once.Do(initColor)
+	if c := colorMap[method]; c != "" {
+		return c
+	}
+	return reset
+}
+
+// ResetColor return reset color
+func ResetColor() string {
+	return reset
+}

pkg/logs/logger_test.go

@@ -0,0 +1,57 @@
+// Copyright 2016 beego Author. All Rights Reserved.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//      http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package logs
+
+import (
+	"testing"
+	"time"
+)
+
+func TestFormatHeader_0(t *testing.T) {
+	tm := time.Now()
+	if tm.Year() >= 2100 {
+		t.FailNow()
+	}
+	dur := time.Second
+	for {
+		if tm.Year() >= 2100 {
+			break
+		}
+		h, _, _ := formatTimeHeader(tm)
+		if tm.Format("2006/01/02 15:04:05.000 ") != string(h) {
+			t.Log(tm)
+			t.FailNow()
+		}
+		tm = tm.Add(dur)
+		dur *= 2
+	}
+}
+
+func TestFormatHeader_1(t *testing.T) {
+	tm := time.Now()
+	year := tm.Year()
+	dur := time.Second
+	for {
+		if tm.Year() >= year+1 {
+			break
+		}
+		h, _, _ := formatTimeHeader(tm)
+		if tm.Format("2006/01/02 15:04:05.000 ") != string(h) {
+			t.Log(tm)
+			t.FailNow()
+		}
+		tm = tm.Add(dur)
+	}
+}

pkg/logs/multifile.go

@@ -0,0 +1,119 @@
+// Copyright 2014 beego Author. All Rights Reserved.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//      http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package logs
+
+import (
+	"encoding/json"
+	"time"
+)
+
+// A filesLogWriter manages several fileLogWriter
+// filesLogWriter will write logs to the file in json configuration  and write the same level log to correspond file
+// means if the file name in configuration is project.log filesLogWriter will create project.error.log/project.debug.log
+// and write the error-level logs to project.error.log and write the debug-level logs to project.debug.log
+// the rotate attribute also  acts like fileLogWriter
+type multiFileLogWriter struct {
+	writers       [LevelDebug + 1 + 1]*fileLogWriter // the last one for fullLogWriter
+	fullLogWriter *fileLogWriter
+	Separate      []string `json:"separate"`
+}
+
+var levelNames = [...]string{"emergency", "alert", "critical", "error", "warning", "notice", "info", "debug"}
+
+// Init file logger with json config.
+// jsonConfig like:
+//	{
+//	"filename":"logs/beego.log",
+//	"maxLines":0,
+//	"maxsize":0,
+//	"daily":true,
+//	"maxDays":15,
+//	"rotate":true,
+//  	"perm":0600,
+//	"separate":["emergency", "alert", "critical", "error", "warning", "notice", "info", "debug"],
+//	}
+
+func (f *multiFileLogWriter) Init(config string) error {
+	writer := newFileWriter().(*fileLogWriter)
+	err := writer.Init(config)
+	if err != nil {
+		return err
+	}
+	f.fullLogWriter = writer
+	f.writers[LevelDebug+1] = writer
+
+	//unmarshal "separate" field to f.Separate
+	json.Unmarshal([]byte(config), f)
+
+	jsonMap := map[string]interface{}{}
+	json.Unmarshal([]byte(config), &jsonMap)
+
+	for i := LevelEmergency; i < LevelDebug+1; i++ {
+		for _, v := range f.Separate {
+			if v == levelNames[i] {
+				jsonMap["filename"] = f.fullLogWriter.fileNameOnly + "." + levelNames[i] + f.fullLogWriter.suffix
+				jsonMap["level"] = i
+				bs, _ := json.Marshal(jsonMap)
+				writer = newFileWriter().(*fileLogWriter)
+				err := writer.Init(string(bs))
+				if err != nil {
+					return err
+				}
+				f.writers[i] = writer
+			}
+		}
+	}
+
+	return nil
+}
+
+func (f *multiFileLogWriter) Destroy() {
+	for i := 0; i < len(f.writers); i++ {
+		if f.writers[i] != nil {
+			f.writers[i].Destroy()
+		}
+	}
+}
+
+func (f *multiFileLogWriter) WriteMsg(when time.Time, msg string, level int) error {
+	if f.fullLogWriter != nil {
+		f.fullLogWriter.WriteMsg(when, msg, level)
+	}
+	for i := 0; i < len(f.writers)-1; i++ {
+		if f.writers[i] != nil {
+			if level == f.writers[i].Level {
+				f.writers[i].WriteMsg(when, msg, level)
+			}
+		}
+	}
+	return nil
+}
+
+func (f *multiFileLogWriter) Flush() {
+	for i := 0; i < len(f.writers); i++ {
+		if f.writers[i] != nil {
+			f.writers[i].Flush()
+		}
+	}
+}
+
+// newFilesWriter create a FileLogWriter returning as LoggerInterface.
+func newFilesWriter() Logger {
+	return &multiFileLogWriter{}
+}
+
+func init() {
+	Register(AdapterMultiFile, newFilesWriter)
+}

pkg/logs/multifile_test.go

@@ -0,0 +1,78 @@
+// Copyright 2014 beego Author. All Rights Reserved.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//      http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package logs
+
+import (
+	"bufio"
+	"os"
+	"strconv"
+	"strings"
+	"testing"
+)
+
+func TestFiles_1(t *testing.T) {
+	log := NewLogger(10000)
+	log.SetLogger("multifile", `{"filename":"test.log","separate":["emergency", "alert", "critical", "error", "warning", "notice", "info", "debug"]}`)
+	log.Debug("debug")
+	log.Informational("info")
+	log.Notice("notice")
+	log.Warning("warning")
+	log.Error("error")
+	log.Alert("alert")
+	log.Critical("critical")
+	log.Emergency("emergency")
+	fns := []string{""}
+	fns = append(fns, levelNames[0:]...)
+	name := "test"
+	suffix := ".log"
+	for _, fn := range fns {
+
+		file := name + suffix
+		if fn != "" {
+			file = name + "." + fn + suffix
+		}
+		f, err := os.Open(file)
+		if err != nil {
+			t.Fatal(err)
+		}
+		b := bufio.NewReader(f)
+		lineNum := 0
+		lastLine := ""
+		for {
+			line, _, err := b.ReadLine()
+			if err != nil {
+				break
+			}
+			if len(line) > 0 {
+				lastLine = string(line)
+				lineNum++
+			}
+		}
+		var expected = 1
+		if fn == "" {
+			expected = LevelDebug + 1
+		}
+		if lineNum != expected {
+			t.Fatal(file, "has", lineNum, "lines not "+strconv.Itoa(expected)+" lines")
+		}
+		if lineNum == 1 {
+			if !strings.Contains(lastLine, fn) {
+				t.Fatal(file + " " + lastLine + " not contains the log msg " + fn)
+			}
+		}
+		os.Remove(file)
+	}
+
+}

pkg/logs/slack.go

@@ -0,0 +1,60 @@
+package logs
+
+import (
+	"encoding/json"
+	"fmt"
+	"net/http"
+	"net/url"
+	"time"
+)
+
+// SLACKWriter implements beego LoggerInterface and is used to send jiaoliao webhook
+type SLACKWriter struct {
+	WebhookURL string `json:"webhookurl"`
+	Level      int    `json:"level"`
+}
+
+// newSLACKWriter create jiaoliao writer.
+func newSLACKWriter() Logger {
+	return &SLACKWriter{Level: LevelTrace}
+}
+
+// Init SLACKWriter with json config string
+func (s *SLACKWriter) Init(jsonconfig string) error {
+	return json.Unmarshal([]byte(jsonconfig), s)
+}
+
+// WriteMsg write message in smtp writer.
+// it will send an email with subject and only this message.
+func (s *SLACKWriter) WriteMsg(when time.Time, msg string, level int) error {
+	if level > s.Level {
+		return nil
+	}
+
+	text := fmt.Sprintf("{\"text\": \"%s %s\"}", when.Format("2006-01-02 15:04:05"), msg)
+
+	form := url.Values{}
+	form.Add("payload", text)
+
+	resp, err := http.PostForm(s.WebhookURL, form)
+	if err != nil {
+		return err
+	}
+	defer resp.Body.Close()
+	if resp.StatusCode != http.StatusOK {
+		return fmt.Errorf("Post webhook failed %s %d", resp.Status, resp.StatusCode)
+	}
+	return nil
+}
+
+// Flush implementing method. empty.
+func (s *SLACKWriter) Flush() {
+}
+
+// Destroy implementing method. empty.
+func (s *SLACKWriter) Destroy() {
+}
+
+func init() {
+	Register(AdapterSlack, newSLACKWriter)
+}

pkg/logs/smtp.go

@@ -0,0 +1,149 @@
+// Copyright 2014 beego Author. All Rights Reserved.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//      http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package logs
+
+import (
+	"crypto/tls"
+	"encoding/json"
+	"fmt"
+	"net"
+	"net/smtp"
+	"strings"
+	"time"
+)
+
+// SMTPWriter implements LoggerInterface and is used to send emails via given SMTP-server.
+type SMTPWriter struct {
+	Username           string   `json:"username"`
+	Password           string   `json:"password"`
+	Host               string   `json:"host"`
+	Subject            string   `json:"subject"`
+	FromAddress        string   `json:"fromAddress"`
+	RecipientAddresses []string `json:"sendTos"`
+	Level              int      `json:"level"`
+}
+
+// NewSMTPWriter create smtp writer.
+func newSMTPWriter() Logger {
+	return &SMTPWriter{Level: LevelTrace}
+}
+
+// Init smtp writer with json config.
+// config like:
+//	{
+//		"username":"example@gmail.com",
+//		"password:"password",
+//		"host":"smtp.gmail.com:465",
+//		"subject":"email title",
+//		"fromAddress":"from@example.com",
+//		"sendTos":["email1","email2"],
+//		"level":LevelError
+//	}
+func (s *SMTPWriter) Init(jsonconfig string) error {
+	return json.Unmarshal([]byte(jsonconfig), s)
+}
+
+func (s *SMTPWriter) getSMTPAuth(host string) smtp.Auth {
+	if len(strings.Trim(s.Username, " ")) == 0 && len(strings.Trim(s.Password, " ")) == 0 {
+		return nil
+	}
+	return smtp.PlainAuth(
+		"",
+		s.Username,
+		s.Password,
+		host,
+	)
+}
+
+func (s *SMTPWriter) sendMail(hostAddressWithPort string, auth smtp.Auth, fromAddress string, recipients []string, msgContent []byte) error {
+	client, err := smtp.Dial(hostAddressWithPort)
+	if err != nil {
+		return err
+	}
+
+	host, _, _ := net.SplitHostPort(hostAddressWithPort)
+	tlsConn := &tls.Config{
+		InsecureSkipVerify: true,
+		ServerName:         host,
+	}
+	if err = client.StartTLS(tlsConn); err != nil {
+		return err
+	}
+
+	if auth != nil {
+		if err = client.Auth(auth); err != nil {
+			return err
+		}
+	}
+
+	if err = client.Mail(fromAddress); err != nil {
+		return err
+	}
+
+	for _, rec := range recipients {
+		if err = client.Rcpt(rec); err != nil {
+			return err
+		}
+	}
+
+	w, err := client.Data()
+	if err != nil {
+		return err
+	}
+	_, err = w.Write(msgContent)
+	if err != nil {
+		return err
+	}
+
+	err = w.Close()
+	if err != nil {
+		return err
+	}
+
+	return client.Quit()
+}
+
+// WriteMsg write message in smtp writer.
+// it will send an email with subject and only this message.
+func (s *SMTPWriter) WriteMsg(when time.Time, msg string, level int) error {
+	if level > s.Level {
+		return nil
+	}
+
+	hp := strings.Split(s.Host, ":")
+
+	// Set up authentication information.
+	auth := s.getSMTPAuth(hp[0])
+
+	// Connect to the server, authenticate, set the sender and recipient,
+	// and send the email all in one step.
+	contentType := "Content-Type: text/plain" + "; charset=UTF-8"
+	mailmsg := []byte("To: " + strings.Join(s.RecipientAddresses, ";") + "\r\nFrom: " + s.FromAddress + "<" + s.FromAddress +
+		">\r\nSubject: " + s.Subject + "\r\n" + contentType + "\r\n\r\n" + fmt.Sprintf(".%s", when.Format("2006-01-02 15:04:05")) + msg)
+
+	return s.sendMail(s.Host, auth, s.FromAddress, s.RecipientAddresses, mailmsg)
+}
+
+// Flush implementing method. empty.
+func (s *SMTPWriter) Flush() {
+}
+
+// Destroy implementing method. empty.
+func (s *SMTPWriter) Destroy() {
+}
+
+func init() {
+	Register(AdapterMail, newSMTPWriter)
+}

pkg/logs/smtp_test.go

@@ -0,0 +1,27 @@
+// Copyright 2014 beego Author. All Rights Reserved.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//      http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package logs
+
+import (
+	"testing"
+	"time"
+)
+
+func TestSmtp(t *testing.T) {
+	log := NewLogger(10000)
+	log.SetLogger("smtp", `{"username":"beegotest@gmail.com","password":"xxxxxxxx","host":"smtp.gmail.com:587","sendTos":["xiemengjun@gmail.com"]}`)
+	log.Critical("sendmail critical")
+	time.Sleep(time.Second * 30)
+}

pkg/metric/prometheus.go

@@ -0,0 +1,99 @@
+// Copyright 2020 astaxie
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package metric
+
+import (
+	"net/http"
+	"reflect"
+	"strconv"
+	"strings"
+	"time"
+
+	"github.com/prometheus/client_golang/prometheus"
+
+	"github.com/astaxie/beego"
+	"github.com/astaxie/beego/logs"
+)
+
+func PrometheusMiddleWare(next http.Handler) http.Handler {
+	summaryVec := prometheus.NewSummaryVec(prometheus.SummaryOpts{
+		Name:      "beego",
+		Subsystem: "http_request",
+		ConstLabels: map[string]string{
+			"server":  beego.BConfig.ServerName,
+			"env":     beego.BConfig.RunMode,
+			"appname": beego.BConfig.AppName,
+		},
+		Help: "The statics info for http request",
+	}, []string{"pattern", "method", "status", "duration"})
+
+	prometheus.MustRegister(summaryVec)
+
+	registerBuildInfo()
+
+	return http.HandlerFunc(func(writer http.ResponseWriter, q *http.Request) {
+		start := time.Now()
+		next.ServeHTTP(writer, q)
+		end := time.Now()
+		go report(end.Sub(start), writer, q, summaryVec)
+	})
+}
+
+func registerBuildInfo() {
+	buildInfo := prometheus.NewGaugeVec(prometheus.GaugeOpts{
+		Name:      "beego",
+		Subsystem: "build_info",
+		Help:      "The building information",
+		ConstLabels: map[string]string{
+			"appname": beego.BConfig.AppName,
+			"build_version":  beego.BuildVersion,
+			"build_revision": beego.BuildGitRevision,
+			"build_status":   beego.BuildStatus,
+			"build_tag":      beego.BuildTag,
+			"build_time": strings.Replace(beego.BuildTime, "--", " ", 1),
+			"go_version":     beego.GoVersion,
+			"git_branch":     beego.GitBranch,
+			"start_time": time.Now().Format("2006-01-02 15:04:05"),
+		},
+	}, []string{})
+
+	prometheus.MustRegister(buildInfo)
+	buildInfo.WithLabelValues().Set(1)
+}
+
+func report(dur time.Duration, writer http.ResponseWriter, q *http.Request, vec *prometheus.SummaryVec) {
+	ctrl := beego.BeeApp.Handlers
+	ctx := ctrl.GetContext()
+	ctx.Reset(writer, q)
+	defer ctrl.GiveBackContext(ctx)
+
+	// We cannot read the status code from q.Response.StatusCode
+	// since the http server does not set q.Response. So q.Response is nil
+	// Thus, we use reflection to read the status from writer whose concrete type is http.response
+	responseVal := reflect.ValueOf(writer).Elem()
+	field := responseVal.FieldByName("status")
+	status := -1
+	if field.IsValid() && field.Kind() == reflect.Int {
+		status = int(field.Int())
+	}
+	ptn := "UNKNOWN"
+	if rt, found := ctrl.FindRouter(ctx); found {
+		ptn = rt.GetPattern()
+	} else {
+		logs.Warn("we can not find the router info for this request, so request will be recorded as UNKNOWN: " + q.URL.String())
+	}
+	ms := dur / time.Millisecond
+	vec.WithLabelValues(ptn, q.Method, strconv.Itoa(status), strconv.Itoa(int(ms))).Observe(float64(ms))
+}

pkg/metric/prometheus_test.go

@@ -0,0 +1,42 @@
+// Copyright 2020 astaxie
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package metric
+
+import (
+	"net/http"
+	"net/url"
+	"testing"
+	"time"
+
+	"github.com/prometheus/client_golang/prometheus"
+
+	"github.com/astaxie/beego/context"
+)
+
+func TestPrometheusMiddleWare(t *testing.T) {
+	middleware := PrometheusMiddleWare(http.HandlerFunc(func(http.ResponseWriter, *http.Request) {}))
+	writer := &context.Response{}
+	request := &http.Request{
+		URL: &url.URL{
+			Host:    "localhost",
+			RawPath: "/a/b/c",
+		},
+		Method: "POST",
+	}
+	vec := prometheus.NewSummaryVec(prometheus.SummaryOpts{}, []string{"pattern", "method", "status", "duration"})
+
+	report(time.Second, writer, request, vec)
+	middleware.ServeHTTP(writer, request)
+}

pkg/migration/ddl.go

@@ -0,0 +1,395 @@
+// Copyright 2014 beego Author. All Rights Reserved.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//      http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package migration
+
+import (
+	"fmt"
+
+	"github.com/astaxie/beego/logs"
+)
+
+// Index struct defines the structure of Index Columns
+type Index struct {
+	Name string
+}
+
+// Unique struct defines a single unique key combination
+type Unique struct {
+	Definition string
+	Columns    []*Column
+}
+
+//Column struct defines a single column of a table
+type Column struct {
+	Name     string
+	Inc      string
+	Null     string
+	Default  string
+	Unsign   string
+	DataType string
+	remove   bool
+	Modify   bool
+}
+
+// Foreign struct defines a single foreign relationship
+type Foreign struct {
+	ForeignTable  string
+	ForeignColumn string
+	OnDelete      string
+	OnUpdate      string
+	Column
+}
+
+// RenameColumn struct allows renaming of columns
+type RenameColumn struct {
+	OldName     string
+	OldNull     string
+	OldDefault  string
+	OldUnsign   string
+	OldDataType string
+	NewName     string
+	Column
+}
+
+// CreateTable creates the table on system
+func (m *Migration) CreateTable(tablename, engine, charset string, p ...func()) {
+	m.TableName = tablename
+	m.Engine = engine
+	m.Charset = charset
+	m.ModifyType = "create"
+}
+
+// AlterTable set the ModifyType to alter
+func (m *Migration) AlterTable(tablename string) {
+	m.TableName = tablename
+	m.ModifyType = "alter"
+}
+
+// NewCol creates a new standard column and attaches it to m struct
+func (m *Migration) NewCol(name string) *Column {
+	col := &Column{Name: name}
+	m.AddColumns(col)
+	return col
+}
+
+//PriCol creates a new primary column and attaches it to m struct
+func (m *Migration) PriCol(name string) *Column {
+	col := &Column{Name: name}
+	m.AddColumns(col)
+	m.AddPrimary(col)
+	return col
+}
+
+//UniCol creates / appends columns to specified unique key and attaches it to m struct
+func (m *Migration) UniCol(uni, name string) *Column {
+	col := &Column{Name: name}
+	m.AddColumns(col)
+
+	uniqueOriginal := &Unique{}
+
+	for _, unique := range m.Uniques {
+		if unique.Definition == uni {
+			unique.AddColumnsToUnique(col)
+			uniqueOriginal = unique
+		}
+	}
+	if uniqueOriginal.Definition == "" {
+		unique := &Unique{Definition: uni}
+		unique.AddColumnsToUnique(col)
+		m.AddUnique(unique)
+	}
+
+	return col
+}
+
+//ForeignCol creates a new foreign column and returns the instance of column
+func (m *Migration) ForeignCol(colname, foreigncol, foreigntable string) (foreign *Foreign) {
+
+	foreign = &Foreign{ForeignColumn: foreigncol, ForeignTable: foreigntable}
+	foreign.Name = colname
+	m.AddForeign(foreign)
+	return foreign
+}
+
+//SetOnDelete sets the on delete of foreign
+func (foreign *Foreign) SetOnDelete(del string) *Foreign {
+	foreign.OnDelete = "ON DELETE" + del
+	return foreign
+}
+
+//SetOnUpdate sets the on update of foreign
+func (foreign *Foreign) SetOnUpdate(update string) *Foreign {
+	foreign.OnUpdate = "ON UPDATE" + update
+	return foreign
+}
+
+//Remove marks the columns to be removed.
+//it allows reverse m to create the column.
+func (c *Column) Remove() {
+	c.remove = true
+}
+
+//SetAuto enables auto_increment of column (can be used once)
+func (c *Column) SetAuto(inc bool) *Column {
+	if inc {
+		c.Inc = "auto_increment"
+	}
+	return c
+}
+
+//SetNullable sets the column to be null
+func (c *Column) SetNullable(null bool) *Column {
+	if null {
+		c.Null = ""
+
+	} else {
+		c.Null = "NOT NULL"
+	}
+	return c
+}
+
+//SetDefault sets the default value, prepend with "DEFAULT "
+func (c *Column) SetDefault(def string) *Column {
+	c.Default = "DEFAULT " + def
+	return c
+}
+
+//SetUnsigned sets the column to be unsigned int
+func (c *Column) SetUnsigned(unsign bool) *Column {
+	if unsign {
+		c.Unsign = "UNSIGNED"
+	}
+	return c
+}
+
+//SetDataType sets the dataType of the column
+func (c *Column) SetDataType(dataType string) *Column {
+	c.DataType = dataType
+	return c
+}
+
+//SetOldNullable allows reverting to previous nullable on reverse ms
+func (c *RenameColumn) SetOldNullable(null bool) *RenameColumn {
+	if null {
+		c.OldNull = ""
+
+	} else {
+		c.OldNull = "NOT NULL"
+	}
+	return c
+}
+
+//SetOldDefault allows reverting to previous default on reverse ms
+func (c *RenameColumn) SetOldDefault(def string) *RenameColumn {
+	c.OldDefault = def
+	return c
+}
+
+//SetOldUnsigned allows reverting to previous unsgined on reverse ms
+func (c *RenameColumn) SetOldUnsigned(unsign bool) *RenameColumn {
+	if unsign {
+		c.OldUnsign = "UNSIGNED"
+	}
+	return c
+}
+
+//SetOldDataType allows reverting to previous datatype on reverse ms
+func (c *RenameColumn) SetOldDataType(dataType string) *RenameColumn {
+	c.OldDataType = dataType
+	return c
+}
+
+//SetPrimary adds the columns to the primary key (can only be used any number of times in only one m)
+func (c *Column) SetPrimary(m *Migration) *Column {
+	m.Primary = append(m.Primary, c)
+	return c
+}
+
+//AddColumnsToUnique adds the columns to Unique Struct
+func (unique *Unique) AddColumnsToUnique(columns ...*Column) *Unique {
+
+	unique.Columns = append(unique.Columns, columns...)
+
+	return unique
+}
+
+//AddColumns adds columns to m struct
+func (m *Migration) AddColumns(columns ...*Column) *Migration {
+
+	m.Columns = append(m.Columns, columns...)
+
+	return m
+}
+
+//AddPrimary adds the column to primary in m struct
+func (m *Migration) AddPrimary(primary *Column) *Migration {
+	m.Primary = append(m.Primary, primary)
+	return m
+}
+
+//AddUnique adds the column to unique in m struct
+func (m *Migration) AddUnique(unique *Unique) *Migration {
+	m.Uniques = append(m.Uniques, unique)
+	return m
+}
+
+//AddForeign adds the column to foreign in m struct
+func (m *Migration) AddForeign(foreign *Foreign) *Migration {
+	m.Foreigns = append(m.Foreigns, foreign)
+	return m
+}
+
+//AddIndex adds the column to index in m struct
+func (m *Migration) AddIndex(index *Index) *Migration {
+	m.Indexes = append(m.Indexes, index)
+	return m
+}
+
+//RenameColumn allows renaming of columns
+func (m *Migration) RenameColumn(from, to string) *RenameColumn {
+	rename := &RenameColumn{OldName: from, NewName: to}
+	m.Renames = append(m.Renames, rename)
+	return rename
+}
+
+//GetSQL returns the generated sql depending on ModifyType
+func (m *Migration) GetSQL() (sql string) {
+	sql = ""
+	switch m.ModifyType {
+	case "create":
+		{
+			sql += fmt.Sprintf("CREATE TABLE `%s` (", m.TableName)
+			for index, column := range m.Columns {
+				sql += fmt.Sprintf("\n `%s` %s %s %s %s %s", column.Name, column.DataType, column.Unsign, column.Null, column.Inc, column.Default)
+				if len(m.Columns) > index+1 {
+					sql += ","
+				}
+			}
+
+			if len(m.Primary) > 0 {
+				sql += fmt.Sprintf(",\n PRIMARY KEY( ")
+			}
+			for index, column := range m.Primary {
+				sql += fmt.Sprintf(" `%s`", column.Name)
+				if len(m.Primary) > index+1 {
+					sql += ","
+				}
+
+			}
+			if len(m.Primary) > 0 {
+				sql += fmt.Sprintf(")")
+			}
+
+			for _, unique := range m.Uniques {
+				sql += fmt.Sprintf(",\n UNIQUE KEY `%s`( ", unique.Definition)
+				for index, column := range unique.Columns {
+					sql += fmt.Sprintf(" `%s`", column.Name)
+					if len(unique.Columns) > index+1 {
+						sql += ","
+					}
+				}
+				sql += fmt.Sprintf(")")
+			}
+			for _, foreign := range m.Foreigns {
+				sql += fmt.Sprintf(",\n `%s` %s %s %s %s %s", foreign.Name, foreign.DataType, foreign.Unsign, foreign.Null, foreign.Inc, foreign.Default)
+				sql += fmt.Sprintf(",\n KEY  `%s_%s_foreign`(`%s`),", m.TableName, foreign.Column.Name, foreign.Column.Name)
+				sql += fmt.Sprintf("\n CONSTRAINT `%s_%s_foreign` FOREIGN KEY (`%s`) REFERENCES `%s` (`%s`)  %s %s", m.TableName, foreign.Column.Name, foreign.Column.Name, foreign.ForeignTable, foreign.ForeignColumn, foreign.OnDelete, foreign.OnUpdate)
+
+			}
+			sql += fmt.Sprintf(")ENGINE=%s DEFAULT CHARSET=%s;", m.Engine, m.Charset)
+			break
+		}
+	case "alter":
+		{
+			sql += fmt.Sprintf("ALTER TABLE `%s` ", m.TableName)
+			for index, column := range m.Columns {
+				if !column.remove {
+					logs.Info("col")
+					sql += fmt.Sprintf("\n ADD `%s` %s %s %s %s %s", column.Name, column.DataType, column.Unsign, column.Null, column.Inc, column.Default)
+				} else {
+					sql += fmt.Sprintf("\n DROP COLUMN `%s`", column.Name)
+				}
+
+				if len(m.Columns) > index+1 {
+					sql += ","
+				}
+			}
+			for index, column := range m.Renames {
+				sql += fmt.Sprintf("CHANGE COLUMN `%s` `%s` %s %s %s %s %s", column.OldName, column.NewName, column.DataType, column.Unsign, column.Null, column.Inc, column.Default)
+				if len(m.Renames) > index+1 {
+					sql += ","
+				}
+			}
+
+			for index, foreign := range m.Foreigns {
+				sql += fmt.Sprintf("ADD `%s` %s %s %s %s %s", foreign.Name, foreign.DataType, foreign.Unsign, foreign.Null, foreign.Inc, foreign.Default)
+				sql += fmt.Sprintf(",\n ADD KEY  `%s_%s_foreign`(`%s`)", m.TableName, foreign.Column.Name, foreign.Column.Name)
+				sql += fmt.Sprintf(",\n ADD CONSTRAINT  `%s_%s_foreign` FOREIGN KEY (`%s`) REFERENCES `%s` (`%s`)  %s %s", m.TableName, foreign.Column.Name, foreign.Column.Name, foreign.ForeignTable, foreign.ForeignColumn, foreign.OnDelete, foreign.OnUpdate)
+				if len(m.Foreigns) > index+1 {
+					sql += ","
+				}
+			}
+			sql += ";"
+
+			break
+		}
+	case "reverse":
+		{
+
+			sql += fmt.Sprintf("ALTER TABLE `%s`", m.TableName)
+			for index, column := range m.Columns {
+				if column.remove {
+					sql += fmt.Sprintf("\n ADD `%s` %s %s %s %s %s", column.Name, column.DataType, column.Unsign, column.Null, column.Inc, column.Default)
+				} else {
+					sql += fmt.Sprintf("\n DROP COLUMN `%s`", column.Name)
+				}
+				if len(m.Columns) > index+1 {
+					sql += ","
+				}
+			}
+
+			if len(m.Primary) > 0 {
+				sql += fmt.Sprintf("\n DROP PRIMARY KEY,")
+			}
+
+			for index, unique := range m.Uniques {
+				sql += fmt.Sprintf("\n DROP KEY `%s`", unique.Definition)
+				if len(m.Uniques) > index+1 {
+					sql += ","
+				}
+
+			}
+			for index, column := range m.Renames {
+				sql += fmt.Sprintf("\n CHANGE COLUMN `%s` `%s` %s %s %s %s", column.NewName, column.OldName, column.OldDataType, column.OldUnsign, column.OldNull, column.OldDefault)
+				if len(m.Renames) > index+1 {
+					sql += ","
+				}
+			}
+
+			for _, foreign := range m.Foreigns {
+				sql += fmt.Sprintf("\n DROP KEY  `%s_%s_foreign`", m.TableName, foreign.Column.Name)
+				sql += fmt.Sprintf(",\n DROP FOREIGN KEY  `%s_%s_foreign`", m.TableName, foreign.Column.Name)
+				sql += fmt.Sprintf(",\n DROP COLUMN `%s`", foreign.Name)
+			}
+			sql += ";"
+		}
+	case "delete":
+		{
+			sql += fmt.Sprintf("DROP TABLE IF EXISTS `%s`;", m.TableName)
+		}
+	}
+
+	return
+}

pkg/migration/doc.go

@@ -0,0 +1,32 @@
+// Package migration enables you to generate migrations back and forth. It generates both migrations.
+//
+// //Creates a table
+// m.CreateTable("tablename","InnoDB","utf8");
+//
+// //Alter a table
+// m.AlterTable("tablename")
+//
+// Standard Column Methods
+// * SetDataType
+// * SetNullable
+// * SetDefault
+// * SetUnsigned (use only on integer types unless produces error)
+//
+// //Sets a primary column, multiple calls allowed, standard column methods available
+// m.PriCol("id").SetAuto(true).SetNullable(false).SetDataType("INT(10)").SetUnsigned(true)
+//
+// //UniCol Can be used multiple times, allows standard Column methods. Use same "index" string to add to same index
+// m.UniCol("index","column")
+//
+// //Standard Column Initialisation, can call .Remove() after NewCol("") on alter to remove
+// m.NewCol("name").SetDataType("VARCHAR(255) COLLATE utf8_unicode_ci").SetNullable(false)
+// m.NewCol("value").SetDataType("DOUBLE(8,2)").SetNullable(false)
+//
+// //Rename Columns , only use with Alter table, doesn't works with Create, prefix standard column methods with "Old" to
+// //create a true reversible migration eg: SetOldDataType("DOUBLE(12,3)")
+// m.RenameColumn("from","to")...
+//
+// //Foreign Columns, single columns are only supported, SetOnDelete & SetOnUpdate are available, call appropriately.
+// //Supports standard column methods, automatic reverse.
+// m.ForeignCol("local_col","foreign_col","foreign_table")
+package migration

pkg/migration/migration.go

@@ -0,0 +1,330 @@
+// Copyright 2014 beego Author. All Rights Reserved.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//      http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+// Package migration is used for migration
+//
+// The table structure is as follow:
+//
+//	CREATE TABLE `migrations` (
+//		`id_migration` int(10) unsigned NOT NULL AUTO_INCREMENT COMMENT 'surrogate key',
+//		`name` varchar(255) DEFAULT NULL COMMENT 'migration name, unique',
+//		`created_at` timestamp NOT NULL DEFAULT CURRENT_TIMESTAMP COMMENT 'date migrated or rolled back',
+//		`statements` longtext COMMENT 'SQL statements for this migration',
+//		`rollback_statements` longtext,
+//		`status` enum('update','rollback') DEFAULT NULL COMMENT 'update indicates it is a normal migration while rollback means this migration is rolled back',
+//		PRIMARY KEY (`id_migration`)
+//	) ENGINE=InnoDB DEFAULT CHARSET=utf8;
+package migration
+
+import (
+	"errors"
+	"sort"
+	"strings"
+	"time"
+
+	"github.com/astaxie/beego/logs"
+	"github.com/astaxie/beego/orm"
+)
+
+// const the data format for the bee generate migration datatype
+const (
+	DateFormat   = "20060102_150405"
+	DBDateFormat = "2006-01-02 15:04:05"
+)
+
+// Migrationer is an interface for all Migration struct
+type Migrationer interface {
+	Up()
+	Down()
+	Reset()
+	Exec(name, status string) error
+	GetCreated() int64
+}
+
+//Migration defines the migrations by either SQL or DDL
+type Migration struct {
+	sqls           []string
+	Created        string
+	TableName      string
+	Engine         string
+	Charset        string
+	ModifyType     string
+	Columns        []*Column
+	Indexes        []*Index
+	Primary        []*Column
+	Uniques        []*Unique
+	Foreigns       []*Foreign
+	Renames        []*RenameColumn
+	RemoveColumns  []*Column
+	RemoveIndexes  []*Index
+	RemoveUniques  []*Unique
+	RemoveForeigns []*Foreign
+}
+
+var (
+	migrationMap map[string]Migrationer
+)
+
+func init() {
+	migrationMap = make(map[string]Migrationer)
+}
+
+// Up implement in the Inheritance struct for upgrade
+func (m *Migration) Up() {
+
+	switch m.ModifyType {
+	case "reverse":
+		m.ModifyType = "alter"
+	case "delete":
+		m.ModifyType = "create"
+	}
+	m.sqls = append(m.sqls, m.GetSQL())
+}
+
+// Down implement in the Inheritance struct for down
+func (m *Migration) Down() {
+
+	switch m.ModifyType {
+	case "alter":
+		m.ModifyType = "reverse"
+	case "create":
+		m.ModifyType = "delete"
+	}
+	m.sqls = append(m.sqls, m.GetSQL())
+}
+
+//Migrate adds the SQL to the execution list
+func (m *Migration) Migrate(migrationType string) {
+	m.ModifyType = migrationType
+	m.sqls = append(m.sqls, m.GetSQL())
+}
+
+// SQL add sql want to execute
+func (m *Migration) SQL(sql string) {
+	m.sqls = append(m.sqls, sql)
+}
+
+// Reset the sqls
+func (m *Migration) Reset() {
+	m.sqls = make([]string, 0)
+}
+
+// Exec execute the sql already add in the sql
+func (m *Migration) Exec(name, status string) error {
+	o := orm.NewOrm()
+	for _, s := range m.sqls {
+		logs.Info("exec sql:", s)
+		r := o.Raw(s)
+		_, err := r.Exec()
+		if err != nil {
+			return err
+		}
+	}
+	return m.addOrUpdateRecord(name, status)
+}
+
+func (m *Migration) addOrUpdateRecord(name, status string) error {
+	o := orm.NewOrm()
+	if status == "down" {
+		status = "rollback"
+		p, err := o.Raw("update migrations set status = ?, rollback_statements = ?, created_at = ? where name = ?").Prepare()
+		if err != nil {
+			return nil
+		}
+		_, err = p.Exec(status, strings.Join(m.sqls, "; "), time.Now().Format(DBDateFormat), name)
+		return err
+	}
+	status = "update"
+	p, err := o.Raw("insert into migrations(name, created_at, statements, status) values(?,?,?,?)").Prepare()
+	if err != nil {
+		return err
+	}
+	_, err = p.Exec(name, time.Now().Format(DBDateFormat), strings.Join(m.sqls, "; "), status)
+	return err
+}
+
+// GetCreated get the unixtime from the Created
+func (m *Migration) GetCreated() int64 {
+	t, err := time.Parse(DateFormat, m.Created)
+	if err != nil {
+		return 0
+	}
+	return t.Unix()
+}
+
+// Register register the Migration in the map
+func Register(name string, m Migrationer) error {
+	if _, ok := migrationMap[name]; ok {
+		return errors.New("already exist name:" + name)
+	}
+	migrationMap[name] = m
+	return nil
+}
+
+// Upgrade upgrade the migration from lasttime
+func Upgrade(lasttime int64) error {
+	sm := sortMap(migrationMap)
+	i := 0
+	migs, _ := getAllMigrations()
+	for _, v := range sm {
+		if _, ok := migs[v.name]; !ok {
+			logs.Info("start upgrade", v.name)
+			v.m.Reset()
+			v.m.Up()
+			err := v.m.Exec(v.name, "up")
+			if err != nil {
+				logs.Error("execute error:", err)
+				time.Sleep(2 * time.Second)
+				return err
+			}
+			logs.Info("end upgrade:", v.name)
+			i++
+		}
+	}
+	logs.Info("total success upgrade:", i, " migration")
+	time.Sleep(2 * time.Second)
+	return nil
+}
+
+// Rollback rollback the migration by the name
+func Rollback(name string) error {
+	if v, ok := migrationMap[name]; ok {
+		logs.Info("start rollback")
+		v.Reset()
+		v.Down()
+		err := v.Exec(name, "down")
+		if err != nil {
+			logs.Error("execute error:", err)
+			time.Sleep(2 * time.Second)
+			return err
+		}
+		logs.Info("end rollback")
+		time.Sleep(2 * time.Second)
+		return nil
+	}
+	logs.Error("not exist the migrationMap name:" + name)
+	time.Sleep(2 * time.Second)
+	return errors.New("not exist the migrationMap name:" + name)
+}
+
+// Reset reset all migration
+// run all migration's down function
+func Reset() error {
+	sm := sortMap(migrationMap)
+	i := 0
+	for j := len(sm) - 1; j >= 0; j-- {
+		v := sm[j]
+		if isRollBack(v.name) {
+			logs.Info("skip the", v.name)
+			time.Sleep(1 * time.Second)
+			continue
+		}
+		logs.Info("start reset:", v.name)
+		v.m.Reset()
+		v.m.Down()
+		err := v.m.Exec(v.name, "down")
+		if err != nil {
+			logs.Error("execute error:", err)
+			time.Sleep(2 * time.Second)
+			return err
+		}
+		i++
+		logs.Info("end reset:", v.name)
+	}
+	logs.Info("total success reset:", i, " migration")
+	time.Sleep(2 * time.Second)
+	return nil
+}
+
+// Refresh first Reset, then Upgrade
+func Refresh() error {
+	err := Reset()
+	if err != nil {
+		logs.Error("execute error:", err)
+		time.Sleep(2 * time.Second)
+		return err
+	}
+	err = Upgrade(0)
+	return err
+}
+
+type dataSlice []data
+
+type data struct {
+	created int64
+	name    string
+	m       Migrationer
+}
+
+// Len is part of sort.Interface.
+func (d dataSlice) Len() int {
+	return len(d)
+}
+
+// Swap is part of sort.Interface.
+func (d dataSlice) Swap(i, j int) {
+	d[i], d[j] = d[j], d[i]
+}
+
+// Less is part of sort.Interface. We use count as the value to sort by
+func (d dataSlice) Less(i, j int) bool {
+	return d[i].created < d[j].created
+}
+
+func sortMap(m map[string]Migrationer) dataSlice {
+	s := make(dataSlice, 0, len(m))
+	for k, v := range m {
+		d := data{}
+		d.created = v.GetCreated()
+		d.name = k
+		d.m = v
+		s = append(s, d)
+	}
+	sort.Sort(s)
+	return s
+}
+
+func isRollBack(name string) bool {
+	o := orm.NewOrm()
+	var maps []orm.Params
+	num, err := o.Raw("select * from migrations where `name` = ? order by id_migration desc", name).Values(&maps)
+	if err != nil {
+		logs.Info("get name has error", err)
+		return false
+	}
+	if num <= 0 {
+		return false
+	}
+	if maps[0]["status"] == "rollback" {
+		return true
+	}
+	return false
+}
+func getAllMigrations() (map[string]string, error) {
+	o := orm.NewOrm()
+	var maps []orm.Params
+	migs := make(map[string]string)
+	num, err := o.Raw("select * from migrations order by id_migration desc").Values(&maps)
+	if err != nil {
+		logs.Info("get name has error", err)
+		return migs, err
+	}
+	if num > 0 {
+		for _, v := range maps {
+			name := v["name"].(string)
+			migs[name] = v["status"].(string)
+		}
+	}
+	return migs, nil
+}