MethodByName

+//Add("/user",&UserController{})
+//Add("/api/list",&RestController{},"*:ListFood")
+//Add("/api/create",&RestController{},"post:CreateFood")
+//Add("/api/update",&RestController{},"put:UpdateFood")
+//Add("/api/delete",&RestController{},"delete:DeleteFood")
+//Add("/api",&RestController{},"get,post:ApiFunc")
+//Add("/simple",&SimpleController{},"get:GetFunc;post:PostFunc")

README.md

@@ -38,4 +38,5 @@ beego is licensed under the Apache Licence, Version 2.0
 ## Use case
 
 - Displaying API documentation: [gowalker](https://github.com/Unknwon/gowalker)
+- seocms: [seocms](https://github.com/chinakr/seocms)
 - CMS: [toropress](https://github.com/insionng/toropress)

beego.go

@@ -10,9 +10,10 @@ import (
 	"os"
 	"path"
 	"runtime"
+	"time"
 )
 
-const VERSION = "0.7.0"
+const VERSION = "0.8.0"
 
 var (
 	BeeApp        *App
@@ -38,8 +39,13 @@ var (
 	SessionSavePath      string           // session savepath if use mysql/redis/file this set to the connectinfo
 	UseFcgi              bool
 	MaxMemory            int64
-	EnableGzip           bool // enable gzip
-	DirectoryIndex       bool //ebable DirectoryIndex default is false
+	EnableGzip           bool   // enable gzip
+	DirectoryIndex       bool   //ebable DirectoryIndex default is false
+	EnbaleHotUpdate      bool   //enable HotUpdate default is false
+	HttpServerTimeOut    int64  //set httpserver timeout
+	ErrorsShow           bool   //set weather show errors
+	XSRFKEY              string //set XSRF
+	CopyRequestBody      bool   //When in raw application, You want to the reqeustbody
 )
 
 func init() {
@@ -66,6 +72,9 @@ func init() {
 	EnableGzip = false
 	StaticDir["/static"] = "static"
 	AppConfigPath = path.Join(AppPath, "conf", "app.conf")
+	HttpServerTimeOut = 0
+	ErrorsShow = true
+	XSRFKEY = "beegoxsrf"
 	ParseConfig()
 }
 
@@ -93,24 +102,39 @@ func (app *App) Run() {
 		}
 		err = fcgi.Serve(l, app.Handlers)
 	} else {
-		server := &http.Server{Handler: app.Handlers}
-		laddr, err := net.ResolveTCPAddr("tcp", addr)
-		if nil != err {
-			BeeLogger.Fatal("ResolveTCPAddr:", err)
+		if EnbaleHotUpdate {
+			server := &http.Server{
+				Handler:      app.Handlers,
+				ReadTimeout:  time.Duration(HttpServerTimeOut) * time.Second,
+				WriteTimeout: time.Duration(HttpServerTimeOut) * time.Second,
+			}
+			laddr, err := net.ResolveTCPAddr("tcp", addr)
+			if nil != err {
+				BeeLogger.Fatal("ResolveTCPAddr:", err)
+			}
+			l, err = GetInitListner(laddr)
+			theStoppable = newStoppable(l)
+			err = server.Serve(theStoppable)
+			theStoppable.wg.Wait()
+			CloseSelf()
+		} else {
+			s := &http.Server{
+				Addr:         addr,
+				Handler:      app.Handlers,
+				ReadTimeout:  time.Duration(HttpServerTimeOut) * time.Second,
+				WriteTimeout: time.Duration(HttpServerTimeOut) * time.Second,
+			}
+			err = s.ListenAndServe()
 		}
-		l, err = GetInitListner(laddr)
-		theStoppable = newStoppable(l)
-		err = server.Serve(theStoppable)
-		theStoppable.wg.Wait()
-		CloseSelf()
+
 	}
 	if err != nil {
 		BeeLogger.Fatal("ListenAndServe: ", err)
 	}
 }
 
-func (app *App) Router(path string, c ControllerInterface) *App {
-	app.Handlers.Add(path, c)
+func (app *App) Router(path string, c ControllerInterface, mappingMethods ...string) *App {
+	app.Handlers.Add(path, c, mappingMethods...)
 	return app
 }
 
@@ -139,6 +163,11 @@ func (app *App) SetStaticPath(url string, path string) *App {
 	return app
 }
 
+func (app *App) DelStaticPath(url string) *App {
+	delete(StaticDir, url)
+	return app
+}
+
 func (app *App) ErrorLog(ctx *Context) {
 	BeeLogger.Printf("[ERR] host: '%s', request: '%s %s', proto: '%s', ua: '%s', remote: '%s'\n", ctx.Request.Host, ctx.Request.Method, ctx.Request.URL.Path, ctx.Request.Proto, ctx.Request.UserAgent(), ctx.Request.RemoteAddr)
 }
@@ -152,8 +181,14 @@ func RegisterController(path string, c ControllerInterface) *App {
 	return BeeApp
 }
 
-func Router(path string, c ControllerInterface) *App {
-	BeeApp.Router(path, c)
+func Router(rootpath string, c ControllerInterface, mappingMethods ...string) *App {
+	BeeApp.Router(rootpath, c, mappingMethods...)
+	return BeeApp
+}
+
+func RESTRouter(rootpath string, c ControllerInterface) *App {
+	Router(rootpath, c)
+	Router(path.Join(rootpath, ":objectId"), c)
 	return BeeApp
 }
 
@@ -177,6 +212,11 @@ func SetStaticPath(url string, path string) *App {
 	return BeeApp
 }
 
+func DelStaticPath(url string) *App {
+	delete(StaticDir, url)
+	return BeeApp
+}
+
 func Filter(filter http.HandlerFunc) *App {
 	BeeApp.Filter(filter)
 	return BeeApp

cache/cache.go

@@ -6,8 +6,10 @@ import (
 
 type Cache interface {
 	Get(key string) interface{}
-	Put(key string, val interface{}, timeout int) error
+	Put(key string, val interface{}, timeout int64) error
 	Delete(key string) error
+	Incr(key string) error
+	Decr(key string) error
 	IsExist(key string) bool
 	ClearAll() error
 	StartAndGC(config string) error
@@ -28,7 +30,7 @@ func Register(name string, adapter Cache) {
 	adapters[name] = adapter
 }
 
-// config need to be correct JSON as string: {"interval":360} 
+// config need to be correct JSON as string: {"interval":360}
 func NewCache(adapterName, config string) (Cache, error) {
 	adapter, ok := adapters[adapterName]
 	if !ok {

cache/cache_test.go

@@ -6,7 +6,7 @@ import (
 )
 
 func Test_cache(t *testing.T) {
-	bm, err := NewCache("memory", `{"interval":60}`)
+	bm, err := NewCache("memory", `{"interval":20}`)
 	if err != nil {
 		t.Error("init err")
 	}
@@ -21,7 +21,7 @@ func Test_cache(t *testing.T) {
 		t.Error("get err")
 	}
 
-	time.Sleep(70 * time.Second)
+	time.Sleep(30 * time.Second)
 
 	if bm.IsExist("astaxie") {
 		t.Error("check err")
@@ -31,6 +31,21 @@ func Test_cache(t *testing.T) {
 		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("Incr 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")

cache/memcache.go

@@ -28,7 +28,7 @@ func (rc *MemcacheCache) Get(key string) interface{} {
 	return contain
 }
 
-func (rc *MemcacheCache) Put(key string, val interface{}, timeout int) error {
+func (rc *MemcacheCache) Put(key string, val interface{}, timeout int64) error {
 	if rc.c == nil {
 		rc.c = rc.connectInit()
 	}
@@ -51,6 +51,14 @@ func (rc *MemcacheCache) Delete(key string) error {
 	return err
 }
 
+func (rc *MemcacheCache) Incr(key string) error {
+	return errors.New("not support in memcache")
+}
+
+func (rc *MemcacheCache) Decr(key string) error {
+	return errors.New("not support in memcache")
+}
+
 func (rc *MemcacheCache) IsExist(key string) bool {
 	if rc.c == nil {
 		rc.c = rc.connectInit()

cache/memory.go

@@ -4,7 +4,6 @@ import (
 	"encoding/json"
 	"errors"
 	"fmt"
-	"strconv"
 	"sync"
 	"time"
 )
@@ -16,12 +15,7 @@ var (
 type MemoryItem struct {
 	val        interface{}
 	Lastaccess time.Time
-	expired    int
-}
-
-func (itm *MemoryItem) Access() interface{} {
-	itm.Lastaccess = time.Now()
-	return itm.val
+	expired    int64
 }
 
 type MemoryCache struct {
@@ -44,13 +38,21 @@ func (bc *MemoryCache) Get(name string) interface{} {
 	if !ok {
 		return nil
 	}
-	return itm.Access()
+	if (time.Now().Unix() - itm.Lastaccess.Unix()) > itm.expired {
+		go bc.Delete(name)
+		return nil
+	}
+	return itm.val
 }
 
-func (bc *MemoryCache) Put(name string, value interface{}, expired int) error {
+func (bc *MemoryCache) Put(name string, value interface{}, expired int64) error {
 	bc.lock.Lock()
 	defer bc.lock.Unlock()
-	t := MemoryItem{val: value, Lastaccess: time.Now(), expired: expired}
+	t := MemoryItem{
+		val:        value,
+		Lastaccess: time.Now(),
+		expired:    expired,
+	}
 	if _, ok := bc.items[name]; ok {
 		return errors.New("the key is exist")
 	} else {
@@ -73,6 +75,70 @@ func (bc *MemoryCache) Delete(name string) error {
 	return nil
 }
 
+func (bc *MemoryCache) Incr(key string) error {
+	bc.lock.RLock()
+	defer bc.lock.RUnlock()
+	itm, ok := bc.items[key]
+	if !ok {
+		return errors.New("key not exist")
+	}
+	switch itm.val.(type) {
+	case int:
+		itm.val = itm.val.(int) + 1
+	case int64:
+		itm.val = itm.val.(int64) + 1
+	case int32:
+		itm.val = itm.val.(int32) + 1
+	case uint:
+		itm.val = itm.val.(uint) + 1
+	case uint32:
+		itm.val = itm.val.(uint32) + 1
+	case uint64:
+		itm.val = itm.val.(uint64) + 1
+	default:
+		return errors.New("item val is not int int64 int32")
+	}
+	return nil
+}
+
+func (bc *MemoryCache) Decr(key string) error {
+	bc.lock.RLock()
+	defer bc.lock.RUnlock()
+	itm, ok := bc.items[key]
+	if !ok {
+		return errors.New("key not exist")
+	}
+	switch itm.val.(type) {
+	case int:
+		itm.val = itm.val.(int) - 1
+	case int64:
+		itm.val = itm.val.(int64) - 1
+	case int32:
+		itm.val = itm.val.(int32) - 1
+	case uint:
+		if itm.val.(uint) > 0 {
+			itm.val = itm.val.(uint) - 1
+		} else {
+			return errors.New("item val is less than 0")
+		}
+	case uint32:
+		if itm.val.(uint32) > 0 {
+			itm.val = itm.val.(uint32) - 1
+		} else {
+			return errors.New("item val is less than 0")
+		}
+	case uint64:
+		if itm.val.(uint64) > 0 {
+			itm.val = itm.val.(uint64) - 1
+		} else {
+			return errors.New("item val is less than 0")
+		}
+	default:
+		return errors.New("item val is not int int64 int32")
+	}
+	return nil
+}
+
 func (bc *MemoryCache) IsExist(name string) bool {
 	bc.lock.RLock()
 	defer bc.lock.RUnlock()
@@ -87,11 +153,11 @@ func (bc *MemoryCache) ClearAll() error {
 	return nil
 }
 
-// Start activates the file cache; it will 
+// Start activates the file cache; it will
 func (bc *MemoryCache) StartAndGC(config string) error {
 	var cf map[string]int
 	json.Unmarshal([]byte(config), &cf)
-	if _, ok := cf["every"]; !ok {
+	if _, ok := cf["interval"]; !ok {
 		cf = make(map[string]int)
 		cf["interval"] = DefaultEvery
 	}
@@ -110,7 +176,7 @@ func (bc *MemoryCache) vaccuum() {
 		return
 	}
 	for {
-		<-time.After(time.Duration(bc.dur) * time.Second)
+		<-time.After(bc.dur)
 		if bc.items == nil {
 			return
 		}
@@ -128,12 +194,8 @@ func (bc *MemoryCache) item_expired(name string) bool {
 	if !ok {
 		return true
 	}
-	dur := time.Now().Sub(itm.Lastaccess)
-	sec, err := strconv.Atoi(fmt.Sprintf("%0.0f", dur.Seconds()))
-	if err != nil {
-		delete(bc.items, name)
-		return true
-	} else if sec >= itm.expired {
+	sec := time.Now().Unix() - itm.Lastaccess.Unix()
+	if sec >= itm.expired {
 		delete(bc.items, name)
 		return true
 	}

cache/redis.go

@@ -31,7 +31,7 @@ func (rc *RedisCache) Get(key string) interface{} {
 	return v
 }
 
-func (rc *RedisCache) Put(key string, val interface{}, timeout int) error {
+func (rc *RedisCache) Put(key string, val interface{}, timeout int64) error {
 	if rc.c == nil {
 		rc.c = rc.connectInit()
 	}
@@ -58,6 +58,28 @@ func (rc *RedisCache) IsExist(key string) bool {
 	return v
 }
 
+func (rc *RedisCache) Incr(key string) error {
+	if rc.c == nil {
+		rc.c = rc.connectInit()
+	}
+	_, err := redis.Bool(rc.c.Do("HINCRBY", rc.key, key, 1))
+	if err != nil {
+		return err
+	}
+	return nil
+}
+
+func (rc *RedisCache) Decr(key string) error {
+	if rc.c == nil {
+		rc.c = rc.connectInit()
+	}
+	_, err := redis.Bool(rc.c.Do("HINCRBY", rc.key, key, -1))
+	if err != nil {
+		return err
+	}
+	return nil
+}
+
 func (rc *RedisCache) ClearAll() error {
 	if rc.c == nil {
 		rc.c = rc.connectInit()

config.go

@@ -133,49 +133,64 @@ func ParseConfig() (err error) {
 		if v, err := AppConfig.Int("httpport"); err == nil {
 			HttpPort = v
 		}
-		if v, err := AppConfig.Int64("maxmemory"); err == nil {
-			MaxMemory = v
+		if maxmemory, err := AppConfig.Int64("maxmemory"); err == nil {
+			MaxMemory = maxmemory
 		}
 		AppName = AppConfig.String("appname")
 		if runmode := AppConfig.String("runmode"); runmode != "" {
 			RunMode = runmode
 		}
-		if ar, err := AppConfig.Bool("autorender"); err == nil {
-			AutoRender = ar
+		if autorender, err := AppConfig.Bool("autorender"); err == nil {
+			AutoRender = autorender
 		}
-		if ar, err := AppConfig.Bool("autorecover"); err == nil {
-			RecoverPanic = ar
+		if autorecover, err := AppConfig.Bool("autorecover"); err == nil {
+			RecoverPanic = autorecover
 		}
-		if ar, err := AppConfig.Bool("pprofon"); err == nil {
-			PprofOn = ar
+		if pprofon, err := AppConfig.Bool("pprofon"); err == nil {
+			PprofOn = pprofon
 		}
 		if views := AppConfig.String("viewspath"); views != "" {
 			ViewsPath = views
 		}
-		if ar, err := AppConfig.Bool("sessionon"); err == nil {
-			SessionOn = ar
+		if sessionon, err := AppConfig.Bool("sessionon"); err == nil {
+			SessionOn = sessionon
 		}
-		if ar := AppConfig.String("sessionprovider"); ar != "" {
-			SessionProvider = ar
+		if sessProvider := AppConfig.String("sessionprovider"); sessProvider != "" {
+			SessionProvider = sessProvider
 		}
-		if ar := AppConfig.String("sessionname"); ar != "" {
-			SessionName = ar
+		if sessName := AppConfig.String("sessionname"); sessName != "" {
+			SessionName = sessName
 		}
-		if ar := AppConfig.String("sessionsavepath"); ar != "" {
-			SessionSavePath = ar
+		if sesssavepath := AppConfig.String("sessionsavepath"); sesssavepath != "" {
+			SessionSavePath = sesssavepath
 		}
-		if ar, err := AppConfig.Int("sessiongcmaxlifetime"); err == nil && ar != 0 {
-			int64val, _ := strconv.ParseInt(strconv.Itoa(ar), 10, 64)
+		if sessMaxLifeTime, err := AppConfig.Int("sessiongcmaxlifetime"); err == nil && sessMaxLifeTime != 0 {
+			int64val, _ := strconv.ParseInt(strconv.Itoa(sessMaxLifeTime), 10, 64)
 			SessionGCMaxLifetime = int64val
 		}
-		if ar, err := AppConfig.Bool("usefcgi"); err == nil {
-			UseFcgi = ar
+		if usefcgi, err := AppConfig.Bool("usefcgi"); err == nil {
+			UseFcgi = usefcgi
 		}
-		if ar, err := AppConfig.Bool("enablegzip"); err == nil {
-			EnableGzip = ar
+		if enablegzip, err := AppConfig.Bool("enablegzip"); err == nil {
+			EnableGzip = enablegzip
 		}
-		if ar, err := AppConfig.Bool("directoryindex"); err == nil {
-			DirectoryIndex = ar
+		if directoryindex, err := AppConfig.Bool("directoryindex"); err == nil {
+			DirectoryIndex = directoryindex
+		}
+		if hotupdate, err := AppConfig.Bool("hotupdate"); err == nil {
+			EnbaleHotUpdate = hotupdate
+		}
+		if timeout, err := AppConfig.Int64("httpservertimeout"); err == nil {
+			HttpServerTimeOut = timeout
+		}
+		if errorsshow, err := AppConfig.Bool("errorsshow"); err == nil {
+			ErrorsShow = errorsshow
+		}
+		if copyrequestbody, err := AppConfig.Bool("copyrequestbody"); err == nil {
+			CopyRequestBody = copyrequestbody
+		}
+		if xsrfkey := AppConfig.String("xsrfkey"); xsrfkey != "" {
+			XSRFKEY = xsrfkey
 		}
 	}
 	return nil

context.go

@@ -1,16 +1,17 @@
 package beego
 
 import (
+	"bytes"
 	"fmt"
 	"mime"
 	"net/http"
 	"strings"
-	"time"
 )
 
 type Context struct {
 	ResponseWriter http.ResponseWriter
 	Request        *http.Request
+	RequestBody    []byte
 	Params         map[string]string
 }
 
@@ -37,7 +38,7 @@ func (ctx *Context) NotFound(message string) {
 	ctx.ResponseWriter.Write([]byte(message))
 }
 
-//Sets the content type by extension, as defined in the mime package. 
+//Sets the content type by extension, as defined in the mime package.
 //For example, ctx.ContentType("json") sets the content-type to "application/json"
 func (ctx *Context) ContentType(ext string) {
 	if !strings.HasPrefix(ext, ".") {
@@ -58,14 +59,61 @@ func (ctx *Context) SetHeader(hdr string, val string, unique bool) {
 }
 
 //Sets a cookie -- duration is the amount of time in seconds. 0 = forever
-func (ctx *Context) SetCookie(name string, value string, age int64) {
-	var utctime time.Time
-	if age == 0 {
-		// 2^31 - 1 seconds (roughly 2038)
-		utctime = time.Unix(2147483647, 0)
+
+//params:
+//string name
+//string value
+//int64 expire = 0
+//string $path
+//string $domain
+//bool $secure = false
+//bool $httponly = false
+func (ctx *Context) SetCookie(name string, value string, others ...interface{}) {
+	var b bytes.Buffer
+	fmt.Fprintf(&b, "%s=%s", sanitizeName(name), sanitizeValue(value))
+	if len(others) > 0 {
+		switch others[0].(type) {
+		case int:
+			fmt.Fprintf(&b, "; Max-Age=%d", others[0].(int))
+		case int64:
+			fmt.Fprintf(&b, "; Max-Age=%d", others[0].(int64))
+		case int32:
+			fmt.Fprintf(&b, "; Max-Age=%d", others[0].(int32))
+		}
 	} else {
-		utctime = time.Unix(time.Now().Unix()+age, 0)
+		fmt.Fprintf(&b, "; Max-Age=0")
 	}
-	cookie := fmt.Sprintf("%s=%s; Expires=%s; Path=/", name, value, webTime(utctime))
-	ctx.SetHeader("Set-Cookie", cookie, true)
+	if len(others) > 1 {
+		fmt.Fprintf(&b, "; Path=%s", sanitizeValue(others[1].(string)))
+	}
+	if len(others) > 2 {
+		fmt.Fprintf(&b, "; Domain=%s", sanitizeValue(others[2].(string)))
+	}
+	if len(others) > 3 {
+		fmt.Fprintf(&b, "; Secure")
+	}
+	if len(others) > 4 {
+		fmt.Fprintf(&b, "; HttpOnly")
+	}
+	ctx.SetHeader("Set-Cookie", b.String(), false)
+}
+
+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 (ctx *Context) GetCookie(key string) string {
+	keycookie, err := ctx.Request.Cookie(key)
+	if err != nil {
+		return ""
+	}
+	return keycookie.Value
 }

controller.go

@@ -4,9 +4,13 @@ import (
 	"bytes"
 	"compress/gzip"
 	"compress/zlib"
+	"crypto/hmac"
+	"crypto/sha1"
+	"encoding/base64"
 	"encoding/json"
 	"encoding/xml"
 	"errors"
+	"fmt"
 	"github.com/astaxie/beego/session"
 	"html/template"
 	"io"
@@ -18,16 +22,19 @@ import (
 	"path"
 	"strconv"
 	"strings"
+	"time"
 )
 
 type Controller struct {
-	Ctx        *Context
-	Data       map[interface{}]interface{}
-	ChildName  string
-	TplNames   string
-	Layout     string
-	TplExt     string
-	CruSession session.SessionStore
+	Ctx         *Context
+	Data        map[interface{}]interface{}
+	ChildName   string
+	TplNames    string
+	Layout      string
+	TplExt      string
+	_xsrf_token string
+	gotofunc    string
+	CruSession  session.SessionStore
 }
 
 type ControllerInterface interface {
@@ -262,15 +269,15 @@ func (c *Controller) GetString(key string) string {
 }
 
 func (c *Controller) GetStrings(key string) []string {
-    r := c.Ctx.Request;
-    if r.Form == nil {
+	r := c.Ctx.Request
+	if r.Form == nil {
 		return []string{}
 	}
-    vs := r.Form[key]
-    if len(vs) > 0 {
-        return vs
-    }
-    return []string{}
+	vs := r.Form[key]
+	if len(vs) > 0 {
+		return vs
+	}
+	return []string{}
 }
 
 func (c *Controller) GetInt(key string) (int64, error) {
@@ -327,3 +334,53 @@ func (c *Controller) DelSession(name interface{}) {
 	}
 	c.CruSession.Delete(name)
 }
+
+func (c *Controller) IsAjax() bool {
+	return (c.Ctx.Request.Header.Get("HTTP_X_REQUESTED_WITH") == "XMLHttpRequest")
+}
+
+func (c *Controller) XsrfToken() string {
+	if c._xsrf_token == "" {
+		token := c.Ctx.GetCookie("_xsrf")
+		if token == "" {
+			h := hmac.New(sha1.New, []byte(XSRFKEY))
+			fmt.Fprintf(h, "%s:%d", c.Ctx.Request.RemoteAddr, time.Now().UnixNano())
+			tok := fmt.Sprintf("%s:%d", h.Sum(nil), time.Now().UnixNano())
+			token := base64.URLEncoding.EncodeToString([]byte(tok))
+			c.Ctx.SetCookie("_xsrf", token)
+		}
+		c._xsrf_token = token
+	}
+	return c._xsrf_token
+}
+
+func (c *Controller) CheckXsrfCookie() bool {
+	token := c.GetString("_xsrf")
+
+	if token == "" {
+		token = c.Ctx.Request.Header.Get("X-Xsrftoken")
+	}
+	if token == "" {
+		token = c.Ctx.Request.Header.Get("X-Csrftoken")
+	}
+	if token == "" {
+		c.Ctx.Abort(403, "'_xsrf' argument missing from POST")
+	}
+
+	if c._xsrf_token != token {
+		c.Ctx.Abort(403, "XSRF cookie does not match POST argument")
+	}
+	return true
+}
+
+func (c *Controller) XsrfFormHtml() string {
+	return "<input type=\"hidden\" name=\"_xsrf\" value=\"" +
+		c._xsrf_token + "\"/>"
+}
+
+func (c *Controller) GoToFunc(funcname string) {
+	if funcname[0] < 65 || funcname[0] > 90 {
+		panic("GoToFunc should exported function")
+	}
+	c.gotofunc = funcname
+}

docs/en/API.md

@@ -0,0 +1,102 @@
+# Getting start with API application development
+Go is very good for developing API applications which I think is the biggest strength compare to other dynamic languages. Beego provides powerful and quick setup tool for developing API applications, which gives you more focus on business logic.
+
+
+## Quick setup
+bee can setup a API application very quick by executing commands under any `$GOPATH/src`. 
+
+`bee api beeapi`
+
+## Application directory structure
+
+ ```
+├── conf
+│   └── app.conf
+├── controllers
+│   └── default.go
+├── models
+│    └── object.go
+└── main.go	
+```
+
+## Source code explanation
+
+- app.conf has following configuration options for your API applications:
+
+	- autorender = false  // Disable auto-render since API applications don't need.
+	- copyrequestbody = true  // RESTFul applications sends raw body instead of form, so we need to read body specifically.
+
+- main.go is for registering routers of RESTFul.
+
+		beego.RESTRouter("/object", &controllers.ObejctController{})
+
+Match rules as follows:
+
+<table>
+<tr>
+	<th>URL</th>					<th>HTTP Verb</th>				<th>Functionality</th>
+</tr>
+<tr>	
+	<td>/object</td>				<td>POST</td>					<td>Creating Objects</td>
+</tr>
+<tr>	
+	<td>/object/objectId</td>	<td>GET</td>					<td>Retrieving Objects</td>
+</tr>
+<tr>	
+	<td>/object/objectId</td>	<td>PUT</td>						<td>Updating Objects</td>
+</tr>
+<tr>	
+	<td>/object</td>				<td>GET</td>						<td>Queries</td>
+</tr>
+<tr>	
+	<td>/object/objectId</td>	<td>DELETE</td>					<td>Deleting Objects</td>
+</tr>
+</table>
+
+- ObejctController implemented corresponding methods:
+
+	type ObejctController struct {
+		beego.Controller
+	}
+	
+	func (this *ObejctController) Post(){
+		
+	}
+	
+	func (this *ObejctController) Get(){
+		
+	}
+	
+	func (this *ObejctController) Put(){
+		
+	}
+	
+	func (this *ObejctController) Delete(){
+		
+	}
+
+- models implemented corresponding object operation for adding, deleting, updating and getting.
+
+## Test
+
+- Add a new object:
+	
+		curl -X POST -d '{"Score":1337,"PlayerName":"Sean Plott"}' http://127.0.0.1:8080/object
+		
+	Returns a corresponding objectID:astaxie1373349756660423900
+	
+- Query a object:
+
+	`curl -X GET http://127.0.0.1:8080/object/astaxie1373349756660423900`
+	
+- Query all objects:
+
+	`curl -X GET http://127.0.0.1:8080/object`
+
+- Update a object:
+
+	`curl -X PUT -d '{"Score":10000}'http://127.0.0.1:8080/object/astaxie1373349756660423900`
+
+- Delete a object:
+
+	`curl -X DELETE http://127.0.0.1:8080/object/astaxie1373349756660423900`

docs/en/Quickstart.md

@@ -762,16 +762,29 @@ Beego has a default BeeLogger object that outputs log into stdout, and you can u
 
 	beego.SetLogger(*log.Logger)
 
-You can output everything that implemented `*log.Logger`, for example, write to file:
+Now Beego supports new way to record your log with automatically log rotate. Use following code in your main function:
 
-	fd,err := os.OpenFile("/var/log/beeapp/beeapp.log", os.O_RDWR|os.O_APPEND, 0644)
+	filew := beego.NewFileWriter("tmp/log.log", true)
+	err := filew.StartLogger()
 	if err != nil {
-		beego.Critical("openfile beeapp.log:", err)
-		return
+		beego.Critical("NewFileWriter err", err)
 	}
-	lg := log.New(fd, "", log.Ldate|log.Ltime)
-	beego.SetLogger(lg)
 
+So Beego records your log into file `tmp/log.log`, the second argument indicates whether enable log rotate or not. The rules of rotate as follows:
+
+1. segment log every 1,000,000 lines.
+2. segment log every 256 MB file size.
+3. segment log daily. 
+4. save log file up to 7 days as default.
+
+You cannot segment log over 999 times everyday, the segmented file name with format `<defined file name>.<date>.<three digits>`.
+
+You are able to modify rotate rules with following methods, be sure that you call them before `StartLogger()`.
+
+- func (w *FileLogWriter) SetRotateDaily(daily bool) *FileLogWriter
+- func (w *FileLogWriter) SetRotateLines(maxlines int) *FileLogWriter
+- func (w *FileLogWriter) SetRotateMaxDays(maxdays int64) *FileLogWriter
+- func (w *FileLogWriter) SetRotateSize(maxsize int) *FileLogWriter
 
 ### Different levels of log
 

docs/zh/API.md

@@ -0,0 +1,106 @@
+# API应用开发入门
+Go是非常适合用来开发API应用的，而且我认为也是Go相对于其他动态语言的最大优势应用。beego在开发API应用方面提供了非常强大和快速的工具，方便用户快速的建立API应用原型，专心业务逻辑就行了。
+
+
+## 快速建立原型
+bee快速开发工具提供了一个API应用建立的工具，在gopath/src下的任意目录执行如下命令就可以快速的建立一个API应用：
+
+`bee api beeapi`
+
+## 应用的目录结构
+应用的目录结构如下所示：
+
+ ```
+├── conf
+│   └── app.conf
+├── controllers
+│   └── default.go
+├── models
+│    └── object.go
+└── main.go	
+```
+
+## 源码解析
+
+- app.conf里面主要针对API的配置如下：
+
+autorender = false  //API应用不需要模板渲染，所以关闭自动渲染
+
+copyrequestbody = true  //RESTFul应用发送信息的时候是raw body，而不是普通的form表单，所以需要额外的读取body信息
+
+- main.go文件主要针对RESTFul的路由注册
+
+`beego.RESTRouter("/object", &controllers.ObejctController{})`
+
+这个路由可以匹配如下的规则
+
+<table>
+<tr>
+	<th>URL</th>					<th>HTTP Verb</th>				<th>Functionality</th>
+</tr>
+<tr>	
+	<td>/object</td>				<td>POST</td>					<td>Creating Objects</td>
+</tr>
+<tr>	
+	<td>/object/objectId</td>	<td>GET</td>					<td>Retrieving Objects</td>
+</tr>
+<tr>	
+	<td>/object/objectId</td>	<td>PUT</td>						<td>Updating Objects</td>
+</tr>
+<tr>	
+	<td>/object</td>				<td>GET</td>						<td>Queries</td>
+</tr>
+<tr>	
+	<td>/object/objectId</td>	<td>DELETE</td>					<td>Deleting Objects</td>
+</tr>
+</table>
+
+- ObejctController实现了对应的方法：
+
+```
+type ObejctController struct {
+	beego.Controller
+}
+
+func (this *ObejctController) Post(){
+	
+}
+
+func (this *ObejctController) Get(){
+	
+}
+
+func (this *ObejctController) Put(){
+	
+}
+
+func (this *ObejctController) Delete(){
+	
+}
+```
+
+- models里面实现了对应操作对象的增删改取等操作
+
+## 测试
+
+- 添加一个对象：
+
+	`curl -X POST -d '{"Score":1337,"PlayerName":"Sean Plott"}' http://127.0.0.1:8080/object`
+	
+	返回一个相应的objectID:astaxie1373349756660423900
+	
+- 查询一个对象
+
+	`curl -X GET http://127.0.0.1:8080/object/astaxie1373349756660423900`
+	
+- 查询全部的对象	
+
+	`curl -X GET http://127.0.0.1:8080/object`
+
+- 更新一个对象
+
+	`curl -X PUT -d '{"Score":10000}'http://127.0.0.1:8080/object/astaxie1373349756660423900`
+
+- 删除一个对象
+
+	`curl -X DELETE http://127.0.0.1:8080/object/astaxie1373349756660423900`

docs/zh/Quickstart.md

@@ -4,25 +4,25 @@
 
 **导航**
 
-- [最小应用](#-1)
-- [新建项目](#-2)
-- [开发模式](#-3)
-- [路由设置](#-4)
-- [静态文件](#-5)
-- [过滤和中间件](#-6)
-- [Controller设计](#-7)
-- [模板处理](#-8)
-- [request处理](#request)
-- [跳转和错误](#-15)
-- [response处理](#response)
+- [最小应用](#%E6%9C%80%E5%B0%8F%E5%BA%94%E7%94%A8)
+- [新建项目](#%E6%96%B0%E5%BB%BA%E9%A1%B9%E7%9B%AE)
+- [开发模式](#%E5%BC%80%E5%8F%91%E6%A8%A1%E5%BC%8F)
+- [路由设置](#%E8%B7%AF%E7%94%B1%E8%AE%BE%E7%BD%AE)
+- [静态文件](#%E9%9D%99%E6%80%81%E6%96%87%E4%BB%B6)
+- [过滤和中间件](#%E8%BF%87%E6%BB%A4%E5%92%8C%E4%B8%AD%E9%97%B4%E4%BB%B6)
+- [Controller设计](#%E6%8E%A7%E5%88%B6%E5%99%A8%E8%AE%BE%E8%AE%A1)
+- [模板处理](#%E6%A8%A1%E6%9D%BF%E5%A4%84%E7%90%86)
+- [request处理](#request%E5%A4%84%E7%90%86)
+- [跳转和错误](#%E8%B7%B3%E8%BD%AC%E5%92%8C%E9%94%99%E8%AF%AF)
+- [response处理](#response%E5%A4%84%E7%90%86)
 - [Sessions](#sessions)
-- [Cache设置](#cache)
-- [安全的Map](#map)
-- [日志处理](#-16)
-- [配置管理](#-17)
-- [beego参数](#-18)
-- [第三方应用集成](#-19)
-- [部署编译应用](#-20)
+- [Cache设置](#cache%E8%AE%BE%E7%BD%AE)
+- [安全的Map](#%E5%AE%89%E5%85%A8%E7%9A%84map)
+- [日志处理](#%E6%97%A5%E5%BF%97%E5%A4%84%E7%90%86)
+- [配置管理](#%E9%85%8D%E7%BD%AE%E7%AE%A1%E7%90%86)
+- [beego参数](#%E7%B3%BB%E7%BB%9F%E9%BB%98%E8%AE%A4%E5%8F%82%E6%95%B0)
+- [第三方应用集成](#%E7%AC%AC%E4%B8%89%E6%96%B9%E5%BA%94%E7%94%A8%E9%9B%86%E6%88%90)
+- [部署编译应用](#%E9%83%A8%E7%BD%B2%E7%BC%96%E8%AF%91%E5%BA%94%E7%94%A8)
 
 
 ## 最小应用
@@ -179,6 +179,47 @@
 	this.Ctx.Params[":path"]
 	this.Ctx.Params[":ext"]
 
+上面列举的是默认的请求方法名(请求的method和函数名一致，例如GET请求执行Get函数，POST请求执行Post函数)，如果用户期望自定义函数名，那么可以使用如下方式：
+
+	beego.Router("/",&IndexController{},"*:Index")
+	
+使用第三个参数，第三个参数就是用来设置对应method到函数名，定义如下
+
+- *表示任意的method都执行该函数
+- 使用`httpmethod:funcname`格式来展示
+- 多个不同的格式使用`;`分割
+- 多个method对应同一个funcname，method之间通过`,`来分割	
+
+以下是一个RESTful的设计如下
+
+- 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")
+
+以下是多个http method指向同一个函数
+	
+	beego.Router("/api",&RestController{},"get,post:ApiFunc")
+
+一下是不同的method对应不同的函数，通过`;`进行分割
+
+	beego.Router("/simple",&SimpleController{},"get:GetFunc;post:PostFunc")
+	
+可用的http method
+- * ：包含一下所有的函数
+- get ：GET请求
+- post ：POST请求
+- put ：PUT请求
+- delete ：DELETE请求
+- patch  ：PATCH请求
+- options ：OPTIONS请求
+- head	：HEAD请求
+
+>>>如果同时存在*和对应的http method，那么优先执行http method的方法，例如同时注册了如下所示的路由：
+
+>>> beego.Router("/simple",&SimpleController{},"*:AllFunc;post:PostFunc")
+
+>>>那么执行POST请求的时候，执行PostFunc而不执行AllFunc
 
 ## 静态文件
 
@@ -787,7 +828,7 @@ beego默认有一个初始化的BeeLogger对象输出内容到stdout中，你可
 
 - func (w *FileLogWriter) SetRotateDaily(daily bool) *FileLogWriter
 - func (w *FileLogWriter) SetRotateLines(maxlines int) *FileLogWriter
-- func (w *FileLogWriter) SetRotateMaxDay(maxday int64) *FileLogWriter
+- func (w *FileLogWriter) SetRotateMaxDays(maxdays int64) *FileLogWriter
 - func (w *FileLogWriter) SetRotateSize(maxsize int) *FileLogWriter
 
 但是这些函数调用必须在调用`StartLogger`之前。

docs/zh/README.md

@@ -1,52 +1,53 @@
-# beego介绍
-beego是一个类似tornado的Go应用框架，采用了RESTFul的方式来实现应用框架，是一个超轻量级的框架，主要有如下的特点：
-
-- 支持MVC的方式，用户只需要关注逻辑，实现对应method的方法即可
-- 支持websocket，通过自定义Handler实现集成sockjs等方式实现
-- 支持自定义路由，支持各种方式的路由，正则、语意均支持，类似sinatra
-- session集成，支持memory、file、redis、mysql等存储
-- 表单处理自动化解析，用户可以很方便的获取数据
-- 日志分级系统，用户可以很方便的调试和应用日志记录
-- 自定义配置文件，支持ini格式的文本配置，可以方便的在系统中调参数
-- 采用了Go内置的模板，集成实现了很多Web开发中常用的函数
-
-执行过程如下所示：
-![](images/beego.png)
-
-# beego简单例子
-
-	package main
-	
-	import (
-		"github.com/astaxie/beego"
-	)
-	
-	type MainController struct {
-		beego.Controller
-	}
-	
-	func (this *MainController) Get() {
-		this.Ctx.WriteString("hello world")
-	}
-	
-	func main() {
-		beego.Router("/", &MainController{})
-		beego.Run()
-	}
-
-
-# beego 指南
-
-* [为什么设计beego](Why.md)
-* [安装入门](Install.md)
-* [快速入门](Quickstart.md)
-* [一步一步开发应用](Tutorial.md)
-* [beego案例](Application.md)
-* [热升级](HotUpdate.md)
-
-
-# API接口
-
-API对于我们平时开发应用非常有用，用于查询一些开发的函数，godoc做的非常好了
-
-[Go Walker](http://gowalker.org/github.com/astaxie/beego)
+# beego介绍
+beego是一个类似tornado的Go应用框架，采用了RESTFul的方式来实现应用框架，是一个超轻量级的框架，主要有如下的特点：
+
+- 支持MVC的方式，用户只需要关注逻辑，实现对应method的方法即可
+- 支持websocket，通过自定义Handler实现集成sockjs等方式实现
+- 支持自定义路由，支持各种方式的路由，正则、语意均支持，类似sinatra
+- session集成，支持memory、file、redis、mysql等存储
+- 表单处理自动化解析，用户可以很方便的获取数据
+- 日志分级系统，用户可以很方便的调试和应用日志记录
+- 自定义配置文件，支持ini格式的文本配置，可以方便的在系统中调参数
+- 采用了Go内置的模板，集成实现了很多Web开发中常用的函数
+
+执行过程如下所示：
+![](images/beego.png)
+
+# beego简单例子
+
+	package main
+	
+	import (
+		"github.com/astaxie/beego"
+	)
+	
+	type MainController struct {
+		beego.Controller
+	}
+	
+	func (this *MainController) Get() {
+		this.Ctx.WriteString("hello world")
+	}
+	
+	func main() {
+		beego.Router("/", &MainController{})
+		beego.Run()
+	}
+
+
+# beego 指南
+
+* [为什么设计beego](Why.md)
+* [安装入门](Install.md)
+* [快速入门](Quickstart.md)
+* [一步一步开发应用](Tutorial.md)
+* [beego案例](Application.md)
+* [热升级](HotUpdate.md)
+* [API应用开发入门](API.md)
+
+
+# API接口
+
+API对于我们平时开发应用非常有用，用于查询一些开发的函数，godoc做的非常好了
+
+[Go Walker](http://gowalker.org/github.com/astaxie/beego)

errors.go

@@ -189,6 +189,7 @@ func NotFound(rw http.ResponseWriter, r *http.Request) {
 		"<br>You like 404 pages" +
 		"</ul>")
 	data["BeegoVersion"] = VERSION
+	rw.WriteHeader(http.StatusNotFound)
 	t.Execute(rw, data)
 }
 
@@ -204,6 +205,7 @@ func Unauthorized(rw http.ResponseWriter, r *http.Request) {
 		"<br>Check the address for errors" +
 		"</ul>")
 	data["BeegoVersion"] = VERSION
+	rw.WriteHeader(http.StatusUnauthorized)
 	t.Execute(rw, data)
 }
 
@@ -220,6 +222,7 @@ func Forbidden(rw http.ResponseWriter, r *http.Request) {
 		"<br>You need to log in" +
 		"</ul>")
 	data["BeegoVersion"] = VERSION
+	rw.WriteHeader(http.StatusForbidden)
 	t.Execute(rw, data)
 }
 
@@ -235,6 +238,7 @@ func ServiceUnavailable(rw http.ResponseWriter, r *http.Request) {
 		"<br>Please try again later." +
 		"</ul>")
 	data["BeegoVersion"] = VERSION
+	rw.WriteHeader(http.StatusServiceUnavailable)
 	t.Execute(rw, data)
 }
 
@@ -249,6 +253,7 @@ func InternalServerError(rw http.ResponseWriter, r *http.Request) {
 		"<br>you should report the fault to the website administrator" +
 		"</ul>")
 	data["BeegoVersion"] = VERSION
+	rw.WriteHeader(http.StatusInternalServerError)
 	t.Execute(rw, data)
 }
 

example/beeapi/conf/app.conf

@@ -0,0 +1,5 @@
+appname = beeapi
+httpport = 8080
+runmode = dev
+autorender = false
+copyrequestbody = true

example/beeapi/controllers/default.go

@@ -0,0 +1,56 @@
+package controllers
+
+import (
+	"encoding/json"
+	"github.com/astaxie/beego"
+	"github.com/astaxie/beego/example/beeapi/models"
+)
+
+type ObejctController struct {
+	beego.Controller
+}
+
+func (this *ObejctController) Post() {
+	var ob models.Object
+	json.Unmarshal(this.Ctx.RequestBody, &ob)
+	objectid := models.AddOne(ob)
+	this.Data["json"] = "{\"ObjectId\":\"" + objectid + "\"}"
+	this.ServeJson()
+}
+
+func (this *ObejctController) Get() {
+	objectId := this.Ctx.Params[":objectId"]
+	if objectId != "" {
+		ob, err := models.GetOne(objectId)
+		if err != nil {
+			this.Data["json"] = err
+		} else {
+			this.Data["json"] = ob
+		}
+	} else {
+		obs := models.GetAll()
+		this.Data["json"] = obs
+	}
+	this.ServeJson()
+}
+
+func (this *ObejctController) Put() {
+	objectId := this.Ctx.Params[":objectId"]
+	var ob models.Object
+	json.Unmarshal(this.Ctx.RequestBody, &ob)
+
+	err := models.Update(objectId, ob.Score)
+	if err != nil {
+		this.Data["json"] = err
+	} else {
+		this.Data["json"] = "update success!"
+	}
+	this.ServeJson()
+}
+
+func (this *ObejctController) Delete() {
+	objectId := this.Ctx.Params[":objectId"]
+	models.Delete(objectId)
+	this.Data["json"] = "delete success!"
+	this.ServeJson()
+}

example/beeapi/main.go

@@ -0,0 +1,20 @@
+package main
+
+import (
+	"github.com/astaxie/beego"
+	"github.com/astaxie/beego/example/beeapi/controllers"
+)
+
+//		Objects
+
+//	URL					HTTP Verb				Functionality
+//	/object				POST					Creating Objects
+//	/object/<objectId>	GET						Retrieving Objects
+//	/object/<objectId>	PUT						Updating Objects
+//	/object				GET						Queries
+//	/object/<objectId>	DELETE					Deleting Objects
+
+func main() {
+	beego.RESTRouter("/object", &controllers.ObejctController{})
+	beego.Run()
+}

example/beeapi/models/object.go

@@ -0,0 +1,52 @@
+package models
+
+import (
+	"errors"
+	"strconv"
+	"time"
+)
+
+var (
+	Objects map[string]*Object
+)
+
+type Object struct {
+	ObjectId   string
+	Score      int64
+	PlayerName string
+}
+
+func init() {
+	Objects = make(map[string]*Object)
+	Objects["hjkhsbnmn123"] = &Object{"hjkhsbnmn123", 100, "astaxie"}
+	Objects["mjjkxsxsaa23"] = &Object{"mjjkxsxsaa23", 101, "someone"}
+}
+
+func AddOne(object Object) (ObjectId string) {
+	object.ObjectId = "astaxie" + strconv.FormatInt(time.Now().UnixNano(), 10)
+	Objects[object.ObjectId] = &object
+	return object.ObjectId
+}
+
+func GetOne(ObjectId string) (object *Object, err error) {
+	if v, ok := Objects[ObjectId]; ok {
+		return v, nil
+	}
+	return nil, errors.New("ObjectId Not Exist")
+}
+
+func GetAll() map[string]*Object {
+	return Objects
+}
+
+func Update(ObjectId string, Score int64) (err error) {
+	if v, ok := Objects[ObjectId]; ok {
+		v.Score = Score
+		return nil
+	}
+	return errors.New("ObjectId Not Exist")
+}
+
+func Delete(ObjectId string) {
+	delete(Objects, ObjectId)
+}

log.go

@@ -14,6 +14,7 @@ import (
 
 type FileLogWriter struct {
 	*log.Logger
+	mw *MuxWriter
 	// The opened file
 	filename string
 
@@ -26,7 +27,7 @@ type FileLogWriter struct {
 
 	// Rotate daily
 	daily          bool
-	maxday         int64
+	maxdays        int64
 	daily_opendate int
 
 	rotate bool
@@ -34,15 +35,37 @@ type FileLogWriter struct {
 	startLock sync.Mutex //only one log can writer to the file
 }
 
+type MuxWriter struct {
+	sync.Mutex
+	fd *os.File
+}
+
+func (l *MuxWriter) Write(b []byte) (int, error) {
+	l.Lock()
+	defer l.Unlock()
+	return l.fd.Write(b)
+}
+
+func (l *MuxWriter) SetFd(fd *os.File) {
+	if l.fd != nil {
+		l.fd.Close()
+	}
+	l.fd = fd
+}
+
 func NewFileWriter(fname string, rotate bool) *FileLogWriter {
 	w := &FileLogWriter{
 		filename: fname,
 		maxlines: 1000000,
 		maxsize:  1 << 28, //256 MB
 		daily:    true,
-		maxday:   7,
+		maxdays:  7,
 		rotate:   rotate,
 	}
+	// use MuxWriter instead direct use os.File for lock write when rotate
+	w.mw = new(MuxWriter)
+	// set MuxWriter as Logger's io.Writer
+	w.Logger = log.New(w.mw, "", log.Ldate|log.Ltime)
 	return w
 }
 
@@ -64,16 +87,23 @@ func (w *FileLogWriter) SetRotateDaily(daily bool) *FileLogWriter {
 	return w
 }
 
-// Set rotate daily's log keep for maxday,other will delete
-func (w *FileLogWriter) SetRotateMaxDay(maxday int64) *FileLogWriter {
-	w.maxday = maxday
+// Set rotate daily's log keep for maxdays, other will delete
+func (w *FileLogWriter) SetRotateMaxDays(maxdays int64) *FileLogWriter {
+	w.maxdays = maxdays
 	return w
 }
 
 func (w *FileLogWriter) StartLogger() error {
-	if err := w.DoRotate(false); err != nil {
+	fd, err := w.createLogFile()
+	if err != nil {
 		return err
 	}
+	w.mw.SetFd(fd)
+	err = w.initFd()
+	if err != nil {
+		return err
+	}
+	BeeLogger = w
 	return nil
 }
 
@@ -83,7 +113,7 @@ func (w *FileLogWriter) docheck(size int) {
 	if (w.maxlines > 0 && w.maxlines_curlines >= w.maxlines) ||
 		(w.maxsize > 0 && w.maxsize_cursize >= w.maxsize) ||
 		(w.daily && time.Now().Day() != w.daily_opendate) {
-		if err := w.DoRotate(true); err != nil {
+		if err := w.DoRotate(); err != nil {
 			fmt.Fprintf(os.Stderr, "FileLogWriter(%q): %s\n", w.filename, err)
 			return
 		}
@@ -101,37 +131,14 @@ func (w *FileLogWriter) Printf(format string, v ...interface{}) {
 	w.Logger.Printf(format, v...)
 }
 
-func (w *FileLogWriter) DoRotate(rotate bool) error {
-	if rotate {
-		_, err := os.Lstat(w.filename)
-		if err == nil { // file exists
-			// Find the next available number
-			num := 1
-			fname := ""
-			for ; err == nil && num <= 999; num++ {
-				fname = w.filename + fmt.Sprintf(".%s.%03d", time.Now().Format("2006-01-02"), num)
-				_, err = os.Lstat(fname)
-			}
-			// return error if the last file checked still existed
-			if err == nil {
-				return fmt.Errorf("Rotate: Cannot find free log number to rename %s\n", w.filename)
-			}
-
-			// Rename the file to its newfound home
-			err = os.Rename(w.filename, fname)
-			if err != nil {
-				return fmt.Errorf("Rotate: %s\n", err)
-			}
-			go w.deleteOldLog()
-		}
-	}
-
+func (w *FileLogWriter) createLogFile() (*os.File, error) {
 	// Open the log file
 	fd, err := os.OpenFile(w.filename, os.O_WRONLY|os.O_APPEND|os.O_CREATE, 0660)
-	if err != nil {
-		return err
-	}
-	w.Logger = log.New(fd, "", log.Ldate|log.Ltime)
+	return fd, err
+}
+
+func (w *FileLogWriter) initFd() error {
+	fd := w.mw.fd
 	finfo, err := fd.Stat()
 	if err != nil {
 		return fmt.Errorf("get stat err: %s\n", err)
@@ -144,19 +151,60 @@ func (w *FileLogWriter) DoRotate(rotate bool) error {
 			fmt.Println(err)
 		}
 		w.maxlines_curlines = len(strings.Split(string(content), "\n"))
-
 	} else {
 		w.maxlines_curlines = 0
 	}
-	BeeLogger = w
+	return nil
+}
+
+func (w *FileLogWriter) DoRotate() error {
+	_, err := os.Lstat(w.filename)
+	if err == nil { // file exists
+		// Find the next available number
+		num := 1
+		fname := ""
+		for ; err == nil && num <= 999; num++ {
+			fname = w.filename + fmt.Sprintf(".%s.%03d", time.Now().Format("2006-01-02"), num)
+			_, err = os.Lstat(fname)
+		}
+		// return error if the last file checked still existed
+		if err == nil {
+			return fmt.Errorf("Rotate: Cannot find free log number to rename %s\n", w.filename)
+		}
+
+		// block Logger's io.Writer
+		w.mw.Lock()
+		defer w.mw.Unlock()
+
+		fd := w.mw.fd
+		fd.Close()
+
+		// close fd before rename
+		// Rename the file to its newfound home
+		err = os.Rename(w.filename, fname)
+		if err != nil {
+			return fmt.Errorf("Rotate: %s\n", err)
+		}
+
+		// re-start logger
+		err = w.StartLogger()
+		if err != nil {
+			return fmt.Errorf("Rotate StartLogger: %s\n", err)
+		}
+
+		go w.deleteOldLog()
+	}
+
 	return nil
 }
 
 func (w *FileLogWriter) deleteOldLog() {
 	dir := path.Dir(w.filename)
 	filepath.Walk(dir, func(path string, info os.FileInfo, err error) error {
-		if !info.IsDir() && info.ModTime().Unix() < (time.Now().Unix()-60*60*24*w.maxday) {
-			os.Remove(path)
+		if !info.IsDir() && info.ModTime().Unix() < (time.Now().Unix()-60*60*24*w.maxdays) {
+			if strings.HasPrefix(filepath.Base(path), filepath.Base(w.filename)) {
+				os.Remove(path)
+			}
 		}
 		return nil
 	})

reload.go

@@ -27,12 +27,19 @@ var ErrInitStart = errors.New("init from")
 // Allows for us to notice when the connection is closed.
 type conn struct {
 	net.Conn
-	wg *sync.WaitGroup
+	wg      *sync.WaitGroup
+	isclose bool
+	lock    sync.Mutex
 }
 
 func (c conn) Close() error {
+	c.lock.Lock()
+	defer c.lock.Unlock()
 	err := c.Conn.Close()
-	c.wg.Done()
+	if !c.isclose && err == nil {
+		c.wg.Done()
+		c.isclose = true
+	}
 	return err
 }
 
@@ -137,16 +144,15 @@ func GetInitListner(tcpaddr *net.TCPAddr) (l net.Listener, err error) {
 	countStr := os.Getenv(FDKey)
 	if countStr == "" {
 		return net.ListenTCP("tcp", tcpaddr)
-	} else {
-		count, err := strconv.Atoi(countStr)
-		if err != nil {
-			return nil, err
-		}
-		f := os.NewFile(uintptr(count), "listen socket")
-		l, err = net.FileListener(f)
-		if err != nil {
-			return nil, err
-		}
-		return l, nil
 	}
+	count, err := strconv.Atoi(countStr)
+	if err != nil {
+		return nil, err
+	}
+	f := os.NewFile(uintptr(count), "listen socket")
+	l, err = net.FileListener(f)
+	if err != nil {
+		return nil, err
+	}
+	return l, nil
 }

router.go

@@ -1,26 +1,26 @@
 package beego
 
 import (
+	"bytes"
 	"fmt"
+	"io/ioutil"
 	"net/http"
 	"net/url"
 	"os"
 	"reflect"
 	"regexp"
 	"runtime"
-	"strconv"
 	"strings"
 )
 
-var (
-	sc *Controller = &Controller{}
-)
+var HTTPMETHOD = []string{"get", "post", "put", "delete", "patch", "options", "head"}
 
 type controllerInfo struct {
 	pattern        string
 	regex          *regexp.Regexp
 	params         map[int]string
 	controllerType reflect.Type
+	methods        map[string]string
 }
 
 type userHandler struct {
@@ -41,7 +41,16 @@ func NewControllerRegistor() *ControllerRegistor {
 	return &ControllerRegistor{routers: make([]*controllerInfo, 0), userHandlers: make(map[string]*userHandler)}
 }
 
-func (p *ControllerRegistor) Add(pattern string, c ControllerInterface) {
+//methods support like this:
+//default methods is the same name as method
+//Add("/user",&UserController{})
+//Add("/api/list",&RestController{},"*:ListFood")
+//Add("/api/create",&RestController{},"post:CreateFood")
+//Add("/api/update",&RestController{},"put:UpdateFood")
+//Add("/api/delete",&RestController{},"delete:DeleteFood")
+//Add("/api",&RestController{},"get,post:ApiFunc")
+//Add("/simple",&SimpleController{},"get:GetFunc;post:PostFunc")
+func (p *ControllerRegistor) Add(pattern string, c ControllerInterface, mappingMethods ...string) {
 	parts := strings.Split(pattern, "/")
 
 	j := 0
@@ -85,13 +94,36 @@ func (p *ControllerRegistor) Add(pattern string, c ControllerInterface) {
 			}
 		}
 	}
+	reflectVal := reflect.ValueOf(c)
+	t := reflect.Indirect(reflectVal).Type()
+	methods := make(map[string]string)
+	if len(mappingMethods) > 0 {
+		semi := strings.Split(mappingMethods[0], ";")
+		for _, v := range semi {
+			colon := strings.Split(v, ":")
+			if len(colon) != 2 {
+				panic("method mapping fomate is error")
+			}
+			comma := strings.Split(colon[0], ",")
+			for _, m := range comma {
+				if m == "*" || inSlice(strings.ToLower(m), HTTPMETHOD) {
+					if val := reflectVal.MethodByName(colon[1]); val.IsValid() {
+						methods[strings.ToLower(m)] = colon[1]
+					} else {
+						panic(colon[1] + " method don't exist in the controller " + t.Name())
+					}
+				} else {
+					panic(v + " is an error method mapping,Don't exist method named " + m)
+				}
+			}
+		}
+	}
 	if j == 0 {
 		//now create the Route
-		t := reflect.Indirect(reflect.ValueOf(c)).Type()
 		route := &controllerInfo{}
 		route.pattern = pattern
 		route.controllerType = t
-
+		route.methods = methods
 		p.fixrouters = append(p.fixrouters, route)
 	} else { // add regexp routers
 		//recreate the url pattern, with parameters replaced
@@ -105,11 +137,12 @@ func (p *ControllerRegistor) Add(pattern string, c ControllerInterface) {
 		}
 
 		//now create the Route
-		t := reflect.Indirect(reflect.ValueOf(c)).Type()
+
 		route := &controllerInfo{}
 		route.regex = regex
 		route.params = params
 		route.pattern = pattern
+		route.methods = methods
 		route.controllerType = t
 		p.routers = append(p.routers, route)
 	}
@@ -189,91 +222,12 @@ func (p *ControllerRegistor) FilterPrefixPath(path string, filter http.HandlerFu
 	})
 }
 
-func StructMap(vc reflect.Value, r *http.Request) error {
-	for k, t := range r.Form {
-		v := t[0]
-		names := strings.Split(k, ".")
-		var value reflect.Value = vc
-		for i, name := range names {
-			name = strings.Title(name)
-			if i == 0 {
-				if reflect.ValueOf(sc).Elem().FieldByName(name).IsValid() {
-					Trace("Controller's property should not be changed by mapper.")
-					break
-				}
-			}
-			if value.Kind() != reflect.Struct {
-				Trace(fmt.Sprintf("arg error, value kind is %v", value.Kind()))
-				break
-			}
-
-			if i != len(names)-1 {
-				value = value.FieldByName(name)
-				if !value.IsValid() {
-					Trace(fmt.Sprintf("(%v value is not valid %v)", name, value))
-					break
-				}
-			} else {
-				tv := value.FieldByName(name)
-				if !tv.IsValid() {
-					Trace(fmt.Sprintf("struct %v has no field named %v", value, name))
-					break
-				}
-				if !tv.CanSet() {
-					Trace("can not set " + k)
-					break
-				}
-				var l interface{}
-				switch k := tv.Kind(); k {
-				case reflect.String:
-					l = v
-				case reflect.Bool:
-					l = (v == "true")
-				case reflect.Int, reflect.Int8, reflect.Int16, reflect.Int32:
-					x, err := strconv.Atoi(v)
-					if err != nil {
-						Trace("arg " + v + " as int: " + err.Error())
-						break
-					}
-					l = x
-				case reflect.Int64:
-					x, err := strconv.ParseInt(v, 10, 64)
-					if err != nil {
-						Trace("arg " + v + " as int: " + err.Error())
-						break
-					}
-					l = x
-				case reflect.Float32, reflect.Float64:
-					x, err := strconv.ParseFloat(v, 64)
-					if err != nil {
-						Trace("arg " + v + " as float64: " + err.Error())
-						break
-					}
-					l = x
-				case reflect.Uint8, reflect.Uint16, reflect.Uint32, reflect.Uint64:
-					x, err := strconv.ParseUint(v, 10, 64)
-					if err != nil {
-						Trace("arg " + v + " as int: " + err.Error())
-						break
-					}
-					l = x
-				case reflect.Struct:
-					Trace("can not set an struct")
-				}
-
-				tv.Set(reflect.ValueOf(l))
-			}
-		}
-	}
-	return nil
-}
-
 // AutoRoute
 func (p *ControllerRegistor) ServeHTTP(rw http.ResponseWriter, r *http.Request) {
 	defer func() {
 		if err := recover(); err != nil {
 			errstr := fmt.Sprint(err)
-			if handler, ok := ErrorMaps[errstr]; ok {
+			if handler, ok := ErrorMaps[errstr]; ok && ErrorsShow {
 				handler(rw, r)
 			} else {
 				if !RecoverPanic {
@@ -341,6 +295,19 @@ func (p *ControllerRegistor) ServeHTTP(rw http.ResponseWriter, r *http.Request)
 	}
 
 	requestPath := r.URL.Path
+
+	var requestbody []byte
+
+	if CopyRequestBody {
+		requestbody, _ = ioutil.ReadAll(r.Body)
+
+		r.Body.Close()
+
+		bf := bytes.NewBuffer(requestbody)
+
+		r.Body = ioutil.NopCloser(bf)
+	}
+
 	r.ParseMultipartForm(MaxMemory)
 
 	//user defined Handler
@@ -429,7 +396,7 @@ func (p *ControllerRegistor) ServeHTTP(rw http.ResponseWriter, r *http.Request)
 					params[route.params[i]] = match
 				}
 				//reassemble query params and add to RawQuery
-				r.URL.RawQuery = url.Values(values).Encode() + "&" + r.URL.RawQuery
+				r.URL.RawQuery = url.Values(values).Encode()
 				//r.URL.RawQuery = url.Values(values).Encode()
 			}
 			runrouter = route
@@ -450,12 +417,10 @@ func (p *ControllerRegistor) ServeHTTP(rw http.ResponseWriter, r *http.Request)
 		//Invoke the request handler
 		vc := reflect.New(runrouter.controllerType)
 
-		StructMap(vc.Elem(), r)
-
 		//call the controller init function
 		init := vc.MethodByName("Init")
 		in := make([]reflect.Value, 2)
-		ct := &Context{ResponseWriter: w, Request: r, Params: params}
+		ct := &Context{ResponseWriter: w, Request: r, Params: params, RequestBody: requestbody}
 
 		in[0] = reflect.ValueOf(ct)
 		in[1] = reflect.ValueOf(runrouter.controllerType.Name())
@@ -468,36 +433,85 @@ func (p *ControllerRegistor) ServeHTTP(rw http.ResponseWriter, r *http.Request)
 		//if response has written,yes don't run next
 		if !w.started {
 			if r.Method == "GET" {
-				method = vc.MethodByName("Get")
+				if m, ok := runrouter.methods["get"]; ok {
+					method = vc.MethodByName(m)
+				} else if m, ok = runrouter.methods["*"]; ok {
+					method = vc.MethodByName(m)
+				} else {
+					method = vc.MethodByName("Get")
+				}
 				method.Call(in)
 			} else if r.Method == "HEAD" {
-				method = vc.MethodByName("Head")
+				if m, ok := runrouter.methods["head"]; ok {
+					method = vc.MethodByName(m)
+				} else if m, ok = runrouter.methods["*"]; ok {
+					method = vc.MethodByName(m)
+				} else {
+					method = vc.MethodByName("Head")
+				}
 				method.Call(in)
 			} else if r.Method == "DELETE" || (r.Method == "POST" && r.Form.Get("_method") == "delete") {
-				method = vc.MethodByName("Delete")
+				if m, ok := runrouter.methods["delete"]; ok {
+					method = vc.MethodByName(m)
+				} else if m, ok = runrouter.methods["*"]; ok {
+					method = vc.MethodByName(m)
+				} else {
+					method = vc.MethodByName("Delete")
+				}
 				method.Call(in)
 			} else if r.Method == "PUT" || (r.Method == "POST" && r.Form.Get("_method") == "put") {
-				method = vc.MethodByName("Put")
+				if m, ok := runrouter.methods["put"]; ok {
+					method = vc.MethodByName(m)
+				} else if m, ok = runrouter.methods["*"]; ok {
+					method = vc.MethodByName(m)
+				} else {
+					method = vc.MethodByName("Put")
+				}
 				method.Call(in)
 			} else if r.Method == "POST" {
-				method = vc.MethodByName("Post")
+				if m, ok := runrouter.methods["post"]; ok {
+					method = vc.MethodByName(m)
+				} else if m, ok = runrouter.methods["*"]; ok {
+					method = vc.MethodByName(m)
+				} else {
+					method = vc.MethodByName("Post")
+				}
 				method.Call(in)
 			} else if r.Method == "PATCH" {
-				method = vc.MethodByName("Patch")
+				if m, ok := runrouter.methods["patch"]; ok {
+					method = vc.MethodByName(m)
+				} else if m, ok = runrouter.methods["*"]; ok {
+					method = vc.MethodByName(m)
+				} else {
+					method = vc.MethodByName("Patch")
+				}
 				method.Call(in)
 			} else if r.Method == "OPTIONS" {
-				method = vc.MethodByName("Options")
+				if m, ok := runrouter.methods["options"]; ok {
+					method = vc.MethodByName(m)
+				} else if m, ok = runrouter.methods["*"]; ok {
+					method = vc.MethodByName(m)
+				} else {
+					method = vc.MethodByName("Options")
+				}
 				method.Call(in)
 			}
+			gotofunc := vc.Elem().FieldByName("gotofunc").String()
+			if gotofunc != "" {
+				method = vc.MethodByName(gotofunc)
+				if method.IsValid() {
+					method.Call(in)
+				} else {
+					panic("gotofunc is exists:" + gotofunc)
+				}
+			}
 			if !w.started {
 				if AutoRender {
 					method = vc.MethodByName("Render")
 					method.Call(in)
 				}
-				if !w.started {
-					method = vc.MethodByName("Finish")
-					method.Call(in)
-				}
+				method = vc.MethodByName("Finish")
+				method.Call(in)
 			}
 		}
 		method = vc.MethodByName("Destructor")
@@ -507,6 +521,7 @@ func (p *ControllerRegistor) ServeHTTP(rw http.ResponseWriter, r *http.Request)
 	//if no matches to url, throw a not found exception
 	if !findrouter {
 		if h, ok := ErrorMaps["404"]; ok {
+			w.status = 404
 			h(w, r)
 		} else {
 			http.NotFound(w, r)

session/session.go

@@ -66,11 +66,11 @@ func (manager *Manager) SessionStart(w http.ResponseWriter, r *http.Request) (se
 			Path:     "/",
 			HttpOnly: true,
 			Secure:   false}
-		cookie.Expires = time.Now().Add(time.Duration(manager.maxlifetime) * time.Second)
+		//cookie.Expires = time.Now().Add(time.Duration(manager.maxlifetime) * time.Second)
 		http.SetCookie(w, &cookie)
 		r.AddCookie(&cookie)
 	} else {
-		cookie.Expires = time.Now().Add(time.Duration(manager.maxlifetime) * time.Second)
+		//cookie.Expires = time.Now().Add(time.Duration(manager.maxlifetime) * time.Second)
 		cookie.HttpOnly = true
 		cookie.Path = "/"
 		http.SetCookie(w, cookie)

utils.go

@@ -170,3 +170,12 @@ func Htmlunquote(src string) string {
 
 	return strings.TrimSpace(text)
 }
+
+func inSlice(v string, sl []string) bool {
+	for _, vv := range sl {
+		if vv == v {
+			return true
+		}
+	}
+	return false
+}

validation/README.md

@@ -0,0 +1,99 @@
+validation
+==============
+
+validation is a form validation for a data validation and error collecting using Go.
+
+## Installation and tests
+
+Install:
+
+	go get github.com/astaxie/beego/validation
+
+Test:
+
+	go test github.com/astaxie/beego/validation
+
+## Example
+
+Direct Use:
+
+	import (
+		"github.com/astaxie/beego/validation"
+		"log"
+	)
+
+	type User struct {
+		Name string
+		Age int
+	}
+
+	func main() {
+		u := User{"man", 40}
+		valid := validation.Validation{}
+		valid.Required(u.Name, "name")
+		valid.MaxSize(u.Name, 15, "nameMax")
+		valid.Range(u.Age, 0, 140, "age")
+		if valid.HasErrors {
+			// validation does not pass
+			// print invalid message
+			for _, err := range valid.Errors {
+				log.Println(err.Key, err.Message)
+			}
+		}
+		// or use like this
+		if v := valid.Max(u.Age, 140); !v.Ok {
+			log.Println(v.Error.Key, v.Error.Message)
+		}
+	}
+
+Struct Tag Use:
+
+	import (
+		"github.com/astaxie/beego/validation"
+	)
+
+	// validation function follow with "valid" tag
+	// functions divide with ";"
+	// parameters in parentheses "()" and divide with ","
+	type user struct {
+		Id   int
+		Name string `valid:"Required"`
+		Age  int    `valid:"Required;Range(1, 140)"`
+	}
+
+	func main() {
+		valid := Validation{}
+		u := user{Name: "test", Age: 40}
+		b, err := valid.Valid(u)
+		if err != nil {
+			// handle error
+		}
+		if !b {
+			// validation does not pass
+			// blabla...
+		}
+	}
+
+Struct Tag Functions:
+
+	Required
+	Min(min int)
+	Max(max int)
+	Range(min, max int)
+	MinSize(min int)
+	MaxSize(max int)
+	Length(length int)
+	Alpha
+	Numeric
+	AlphaNumeric
+	Match(regexp string)		// does not support yet
+	NoMatch(regexp string)	// does not support yet
+	AlphaDash
+	Email
+	IP
+	Base64
+
+
+## LICENSE
+
+BSD License http://creativecommons.org/licenses/BSD/

validation/util.go

@@ -0,0 +1,198 @@
+package validation
+
+import (
+	"fmt"
+	"reflect"
+	"regexp"
+	"strconv"
+	"strings"
+)
+
+const (
+	VALIDTAG = "valid"
+)
+
+var (
+	// key: function name
+	// value: the number of parameters
+	funcs = make(Funcs)
+
+	// doesn't belong to validation functions
+	unFuncs = map[string]bool{
+		"Clear":     true,
+		"HasErrors": true,
+		"ErrorMap":  true,
+		"Error":     true,
+		"apply":     true,
+		"Check":     true,
+		"Valid":     true,
+	}
+)
+
+func init() {
+	v := &Validation{}
+	t := reflect.TypeOf(v)
+	for i := 0; i < t.NumMethod(); i++ {
+		m := t.Method(i)
+		if !unFuncs[m.Name] {
+			funcs[m.Name] = m.Func
+		}
+	}
+}
+
+type ValidFunc struct {
+	Name   string
+	Params []interface{}
+}
+
+type Funcs map[string]reflect.Value
+
+func (f Funcs) Call(name string, params ...interface{}) (result []reflect.Value, err error) {
+	defer func() {
+		if r := recover(); r != nil {
+			err = r.(error)
+		}
+	}()
+	if _, ok := f[name]; !ok {
+		err = fmt.Errorf("%s does not exist", name)
+		return
+	}
+	if len(params) != f[name].Type().NumIn() {
+		err = fmt.Errorf("The number of params is not adapted")
+		return
+	}
+	in := make([]reflect.Value, len(params))
+	for k, param := range params {
+		in[k] = reflect.ValueOf(param)
+	}
+	result = f[name].Call(in)
+	return
+}
+
+func isStruct(t reflect.Type) bool {
+	return t.Kind() == reflect.Struct
+}
+
+func isStructPtr(t reflect.Type) bool {
+	return t.Kind() == reflect.Ptr && t.Elem().Kind() == reflect.Struct
+}
+
+func getValidFuncs(f reflect.StructField) (vfs []ValidFunc, err error) {
+	tag := f.Tag.Get(VALIDTAG)
+	if len(tag) == 0 {
+		return
+	}
+	fs := strings.Split(tag, ";")
+	for _, vfunc := range fs {
+		var vf ValidFunc
+		vf, err = parseFunc(vfunc)
+		if err != nil {
+			return
+		}
+		vfs = append(vfs, vf)
+	}
+	return
+}
+
+func parseFunc(vfunc string) (v ValidFunc, err error) {
+	defer func() {
+		if r := recover(); r != nil {
+			err = r.(error)
+		}
+	}()
+
+	vfunc = strings.TrimSpace(vfunc)
+	start := strings.Index(vfunc, "(")
+	var num int
+
+	// doesn't need parameter valid function
+	if start == -1 {
+		if num, err = numIn(vfunc); err != nil {
+			return
+		}
+		if num != 0 {
+			err = fmt.Errorf("%s require %d parameters", vfunc, num)
+			return
+		}
+		v = ValidFunc{vfunc, []interface{}{vfunc}}
+		return
+	}
+
+	end := strings.Index(vfunc, ")")
+	if end == -1 {
+		err = fmt.Errorf("invalid valid function")
+		return
+	}
+
+	name := strings.TrimSpace(vfunc[:start])
+	if num, err = numIn(name); err != nil {
+		return
+	}
+
+	params := strings.Split(vfunc[start+1:end], ",")
+	// the num of param must be equal
+	if num != len(params) {
+		err = fmt.Errorf("%s require %d parameters", name, num)
+		return
+	}
+
+	tParams, err := trim(name, params)
+	if err != nil {
+		return
+	}
+	v = ValidFunc{name, tParams}
+	return
+}
+
+func numIn(name string) (num int, err error) {
+	fn, ok := funcs[name]
+	if !ok {
+		err = fmt.Errorf("doesn't exsits %s valid function", name)
+		return
+	}
+	// sub *Validation obj and key
+	num = fn.Type().NumIn() - 3
+	return
+}
+
+func trim(name string, s []string) (ts []interface{}, err error) {
+	ts = make([]interface{}, len(s), len(s)+1)
+	fn, ok := funcs[name]
+	if !ok {
+		err = fmt.Errorf("doesn't exsits %s valid function", name)
+		return
+	}
+	for i := 0; i < len(s); i++ {
+		var param interface{}
+		// skip *Validation and obj params
+		if param, err = magic(fn.Type().In(i+2), strings.TrimSpace(s[i])); err != nil {
+			return
+		}
+		ts[i] = param
+	}
+	ts = append(ts, name)
+	return
+}
+
+// modify the parameters's type to adapt the function input parameters' type
+func magic(t reflect.Type, s string) (i interface{}, err error) {
+	switch t.Kind() {
+	case reflect.Int:
+		i, err = strconv.Atoi(s)
+	case reflect.String:
+		i = s
+	case reflect.Ptr:
+		if t.Elem().String() != "regexp.Regexp" {
+			err = fmt.Errorf("does not support %s", t.Elem().String())
+			return
+		}
+		i, err = regexp.Compile(s)
+	default:
+		err = fmt.Errorf("does not support %s", t.Kind().String())
+	}
+	return
+}
+
+func mergeParam(v *Validation, obj interface{}, params []interface{}) []interface{} {
+	return append([]interface{}{v, obj}, params...)
+}

validation/util_test.go

@@ -0,0 +1,77 @@
+package validation
+
+import (
+	"reflect"
+	"testing"
+)
+
+type user struct {
+	Id   int
+	Tag  string `valid:"Maxx(aa)"`
+	Name string `valid:"Required"`
+	Age  int    `valid:"Required;Range(1, 140)"`
+}
+
+func TestGetValidFuncs(t *testing.T) {
+	u := user{Name: "test", Age: 1}
+	tf := reflect.TypeOf(u)
+	var vfs []ValidFunc
+	var err error
+
+	f, _ := tf.FieldByName("Id")
+	if vfs, err = getValidFuncs(f); err != nil {
+		t.Fatal(err)
+	}
+	if len(vfs) != 0 {
+		t.Fatal("should get none ValidFunc")
+	}
+
+	f, _ = tf.FieldByName("Tag")
+	if vfs, err = getValidFuncs(f); err.Error() != "doesn't exsits Maxx valid function" {
+		t.Fatal(err)
+	}
+
+	f, _ = tf.FieldByName("Name")
+	if vfs, err = getValidFuncs(f); err != nil {
+		t.Fatal(err)
+	}
+	if len(vfs) != 1 {
+		t.Fatal("should get 1 ValidFunc")
+	}
+	if vfs[0].Name != "Required" && len(vfs[0].Params) != 0 {
+		t.Error("Required funcs should be got")
+	}
+
+	f, _ = tf.FieldByName("Age")
+	if vfs, err = getValidFuncs(f); err != nil {
+		t.Fatal(err)
+	}
+	if len(vfs) != 2 {
+		t.Fatal("should get 2 ValidFunc")
+	}
+	if vfs[0].Name != "Required" && len(vfs[0].Params) != 0 {
+		t.Error("Required funcs should be got")
+	}
+	if vfs[1].Name != "Range" && len(vfs[1].Params) != 2 {
+		t.Error("Range funcs should be got")
+	}
+}
+
+func TestCall(t *testing.T) {
+	u := user{Name: "test", Age: 180}
+	tf := reflect.TypeOf(u)
+	var vfs []ValidFunc
+	var err error
+	f, _ := tf.FieldByName("Age")
+	if vfs, err = getValidFuncs(f); err != nil {
+		t.Fatal(err)
+	}
+	valid := &Validation{}
+	vfs[1].Params = append([]interface{}{valid, u.Age}, vfs[1].Params...)
+	if _, err = funcs.Call(vfs[1].Name, vfs[1].Params...); err != nil {
+		t.Fatal(err)
+	}
+	if len(valid.Errors) != 1 {
+		t.Error("age out of range should be has an error")
+	}
+}

validation/validation.go

@@ -0,0 +1,207 @@
+package validation
+
+import (
+	"fmt"
+	"reflect"
+	"regexp"
+)
+
+type ValidationError struct {
+	Message, Key string
+}
+
+// Returns the Message.
+func (e *ValidationError) String() string {
+	if e == nil {
+		return ""
+	}
+	return e.Message
+}
+
+// A Validation context manages data validation and error messages.
+type Validation struct {
+	Errors []*ValidationError
+}
+
+func (v *Validation) Clear() {
+	v.Errors = []*ValidationError{}
+}
+
+func (v *Validation) HasErrors() bool {
+	return len(v.Errors) > 0
+}
+
+// Return the errors mapped by key.
+// If there are multiple validation errors associated with a single key, the
+// first one "wins".  (Typically the first validation will be the more basic).
+func (v *Validation) ErrorMap() map[string]*ValidationError {
+	m := map[string]*ValidationError{}
+	for _, e := range v.Errors {
+		if _, ok := m[e.Key]; !ok {
+			m[e.Key] = e
+		}
+	}
+	return m
+}
+
+// Add an error to the validation context.
+func (v *Validation) Error(message string, args ...interface{}) *ValidationResult {
+	result := (&ValidationResult{
+		Ok:    false,
+		Error: &ValidationError{},
+	}).Message(message, args...)
+	v.Errors = append(v.Errors, result.Error)
+	return result
+}
+
+// A ValidationResult is returned from every validation method.
+// It provides an indication of success, and a pointer to the Error (if any).
+type ValidationResult struct {
+	Error *ValidationError
+	Ok    bool
+}
+
+func (r *ValidationResult) Key(key string) *ValidationResult {
+	if r.Error != nil {
+		r.Error.Key = key
+	}
+	return r
+}
+
+func (r *ValidationResult) Message(message string, args ...interface{}) *ValidationResult {
+	if r.Error != nil {
+		if len(args) == 0 {
+			r.Error.Message = message
+		} else {
+			r.Error.Message = fmt.Sprintf(message, args...)
+		}
+	}
+	return r
+}
+
+// Test that the argument is non-nil and non-empty (if string or list)
+func (v *Validation) Required(obj interface{}, key string) *ValidationResult {
+	return v.apply(Required{key}, obj)
+}
+
+func (v *Validation) Min(n int, min int, key string) *ValidationResult {
+	return v.apply(Min{min, key}, n)
+}
+
+func (v *Validation) Max(n int, max int, key string) *ValidationResult {
+	return v.apply(Max{max, key}, n)
+}
+
+func (v *Validation) Range(n, min, max int, key string) *ValidationResult {
+	return v.apply(Range{Min{Min: min}, Max{Max: max}, key}, n)
+}
+
+func (v *Validation) MinSize(obj interface{}, min int, key string) *ValidationResult {
+	return v.apply(MinSize{min, key}, obj)
+}
+
+func (v *Validation) MaxSize(obj interface{}, max int, key string) *ValidationResult {
+	return v.apply(MaxSize{max, key}, obj)
+}
+
+func (v *Validation) Length(obj interface{}, n int, key string) *ValidationResult {
+	return v.apply(Length{n, key}, obj)
+}
+
+func (v *Validation) Alpha(obj interface{}, key string) *ValidationResult {
+	return v.apply(Alpha{key}, obj)
+}
+
+func (v *Validation) Numeric(obj interface{}, key string) *ValidationResult {
+	return v.apply(Numeric{key}, obj)
+}
+
+func (v *Validation) AlphaNumeric(obj interface{}, key string) *ValidationResult {
+	return v.apply(AlphaNumeric{key}, obj)
+}
+
+func (v *Validation) Match(str string, regex *regexp.Regexp, key string) *ValidationResult {
+	return v.apply(Match{regex, key}, str)
+}
+
+func (v *Validation) NoMatch(str string, regex *regexp.Regexp, key string) *ValidationResult {
+	return v.apply(NoMatch{Match{Regexp: regex}, key}, str)
+}
+
+func (v *Validation) AlphaDash(str string, key string) *ValidationResult {
+	return v.apply(AlphaDash{NoMatch{Match: Match{Regexp: alphaDashPattern}}, key}, str)
+}
+
+func (v *Validation) Email(str string, key string) *ValidationResult {
+	return v.apply(Email{Match{Regexp: emailPattern}, key}, str)
+}
+
+func (v *Validation) IP(str string, key string) *ValidationResult {
+	return v.apply(IP{Match{Regexp: ipPattern}, key}, str)
+}
+
+func (v *Validation) Base64(str string, key string) *ValidationResult {
+	return v.apply(Base64{Match{Regexp: base64Pattern}, key}, str)
+}
+
+func (v *Validation) apply(chk Validator, obj interface{}) *ValidationResult {
+	if chk.IsSatisfied(obj) {
+		return &ValidationResult{Ok: true}
+	}
+
+	// Add the error to the validation context.
+	err := &ValidationError{
+		Message: chk.DefaultMessage(),
+		Key:     chk.GetKey(),
+	}
+	v.Errors = append(v.Errors, err)
+
+	// Also return it in the result.
+	return &ValidationResult{
+		Ok:    false,
+		Error: err,
+	}
+}
+
+// Apply a group of validators to a field, in order, and return the
+// ValidationResult from the first one that fails, or the last one that
+// succeeds.
+func (v *Validation) Check(obj interface{}, checks ...Validator) *ValidationResult {
+	var result *ValidationResult
+	for _, check := range checks {
+		result = v.apply(check, obj)
+		if !result.Ok {
+			return result
+		}
+	}
+	return result
+}
+
+// the obj parameter must be a struct or a struct pointer
+func (v *Validation) Valid(obj interface{}) (b bool, err error) {
+	objT := reflect.TypeOf(obj)
+	objV := reflect.ValueOf(obj)
+	switch {
+	case isStruct(objT):
+	case isStructPtr(objT):
+		objT = objT.Elem()
+		objV = objV.Elem()
+	default:
+		err = fmt.Errorf("%v must be a struct or a struct pointer", obj)
+		return
+	}
+
+	for i := 0; i < objT.NumField(); i++ {
+		var vfs []ValidFunc
+		if vfs, err = getValidFuncs(objT.Field(i)); err != nil {
+			return
+		}
+		for _, vf := range vfs {
+			if _, err = funcs.Call(vf.Name,
+				mergeParam(v, objV.Field(i).Interface(), vf.Params)...); err != nil {
+				return
+			}
+		}
+	}
+	return !v.HasErrors(), nil
+}

validation/validation_test.go

@@ -0,0 +1,246 @@
+package validation
+
+import (
+	"regexp"
+	"testing"
+	"time"
+)
+
+func TestRequired(t *testing.T) {
+	valid := Validation{}
+
+	if valid.Required(nil, "nil").Ok {
+		t.Error("nil object should be false")
+	}
+	if valid.Required("", "string").Ok {
+		t.Error("\"'\" string should be false")
+	}
+	if !valid.Required("astaxie", "string").Ok {
+		t.Error("string should be true")
+	}
+	if valid.Required(0, "zero").Ok {
+		t.Error("Integer should not be equal 0")
+	}
+	if !valid.Required(1, "int").Ok {
+		t.Error("Integer except 0 should be true")
+	}
+	if !valid.Required(time.Now(), "time").Ok {
+		t.Error("time should be true")
+	}
+	if valid.Required([]string{}, "emptySlice").Ok {
+		t.Error("empty slice should be false")
+	}
+	if !valid.Required([]interface{}{"ok"}, "slice").Ok {
+		t.Error("slice should be true")
+	}
+}
+
+func TestMin(t *testing.T) {
+	valid := Validation{}
+
+	if valid.Min(-1, 0, "min0").Ok {
+		t.Error("-1 is less than the minimum value of 0 should be false")
+	}
+	if !valid.Min(1, 0, "min0").Ok {
+		t.Error("1 is greater or equal than the minimum value of 0 should be true")
+	}
+}
+
+func TestMax(t *testing.T) {
+	valid := Validation{}
+
+	if valid.Max(1, 0, "max0").Ok {
+		t.Error("1 is greater than the minimum value of 0 should be false")
+	}
+	if !valid.Max(-1, 0, "max0").Ok {
+		t.Error("-1 is less or equal than the maximum value of 0 should be true")
+	}
+}
+
+func TestRange(t *testing.T) {
+	valid := Validation{}
+
+	if valid.Range(-1, 0, 1, "range0_1").Ok {
+		t.Error("-1 is bettween 0 and 1 should be false")
+	}
+	if !valid.Range(1, 0, 1, "range0_1").Ok {
+		t.Error("1 is bettween 0 and 1 should be true")
+	}
+}
+
+func TestMinSize(t *testing.T) {
+	valid := Validation{}
+
+	if valid.MinSize("", 1, "minSize1").Ok {
+		t.Error("the length of \"\" is less than the minimum value of 1 should be false")
+	}
+	if !valid.MinSize("ok", 1, "minSize1").Ok {
+		t.Error("the length of \"ok\" is greater or equal than the minimum value of 1 should be true")
+	}
+	if valid.MinSize([]string{}, 1, "minSize1").Ok {
+		t.Error("the length of empty slice is less than the minimum value of 1 should be false")
+	}
+	if !valid.MinSize([]interface{}{"ok"}, 1, "minSize1").Ok {
+		t.Error("the length of [\"ok\"] is greater or equal than the minimum value of 1 should be true")
+	}
+}
+
+func TestMaxSize(t *testing.T) {
+	valid := Validation{}
+
+	if valid.MaxSize("ok", 1, "maxSize1").Ok {
+		t.Error("the length of \"ok\" is greater than the maximum value of 1 should be false")
+	}
+	if !valid.MaxSize("", 1, "maxSize1").Ok {
+		t.Error("the length of \"\" is less or equal than the maximum value of 1 should be true")
+	}
+	if valid.MaxSize([]interface{}{"ok", false}, 1, "maxSize1").Ok {
+		t.Error("the length of [\"ok\", false] is greater than the maximum value of 1 should be false")
+	}
+	if !valid.MaxSize([]string{}, 1, "maxSize1").Ok {
+		t.Error("the length of empty slice is less or equal than the maximum value of 1 should be true")
+	}
+}
+
+func TestLength(t *testing.T) {
+	valid := Validation{}
+
+	if valid.Length("", 1, "length1").Ok {
+		t.Error("the length of \"\" must equal 1 should be false")
+	}
+	if !valid.Length("1", 1, "length1").Ok {
+		t.Error("the length of \"1\" must equal 1 should be true")
+	}
+	if valid.Length([]string{}, 1, "length1").Ok {
+		t.Error("the length of empty slice must equal 1 should be false")
+	}
+	if !valid.Length([]interface{}{"ok"}, 1, "length1").Ok {
+		t.Error("the length of [\"ok\"] must equal 1 should be true")
+	}
+}
+
+func TestAlpha(t *testing.T) {
+	valid := Validation{}
+
+	if valid.Alpha("a,1-@ $", "alpha").Ok {
+		t.Error("\"a,1-@ $\" are valid alpha characters should be false")
+	}
+	if !valid.Alpha("abCD", "alpha").Ok {
+		t.Error("\"abCD\" are valid alpha characters should be true")
+	}
+}
+
+func TestNumeric(t *testing.T) {
+	valid := Validation{}
+
+	if valid.Numeric("a,1-@ $", "numeric").Ok {
+		t.Error("\"a,1-@ $\" are valid numeric characters should be false")
+	}
+	if !valid.Numeric("1234", "numeric").Ok {
+		t.Error("\"1234\" are valid numeric characters should be true")
+	}
+}
+
+func TestAlphaNumeric(t *testing.T) {
+	valid := Validation{}
+
+	if valid.AlphaNumeric("a,1-@ $", "alphaNumeric").Ok {
+		t.Error("\"a,1-@ $\" are valid alpha or numeric characters should be false")
+	}
+	if !valid.AlphaNumeric("1234aB", "alphaNumeric").Ok {
+		t.Error("\"1234aB\" are valid alpha or numeric characters should be true")
+	}
+}
+
+func TestMatch(t *testing.T) {
+	valid := Validation{}
+
+	if valid.Match("suchuangji@gmail", regexp.MustCompile("^\\w+@\\w+\\.\\w+$"), "match").Ok {
+		t.Error("\"suchuangji@gmail\" match \"^\\w+@\\w+\\.\\w+$\"  should be false")
+	}
+	if !valid.Match("suchuangji@gmail.com", regexp.MustCompile("^\\w+@\\w+\\.\\w+$"), "match").Ok {
+		t.Error("\"suchuangji@gmail\" match \"^\\w+@\\w+\\.\\w+$\"  should be true")
+	}
+}
+
+func TestNoMatch(t *testing.T) {
+	valid := Validation{}
+
+	if valid.NoMatch("123@gmail", regexp.MustCompile("[^\\w\\d]"), "nomatch").Ok {
+		t.Error("\"123@gmail\" not match \"[^\\w\\d]\"  should be false")
+	}
+	if !valid.NoMatch("123gmail", regexp.MustCompile("[^\\w\\d]"), "match").Ok {
+		t.Error("\"123@gmail\" not match \"[^\\w\\d@]\"  should be true")
+	}
+}
+
+func TestAlphaDash(t *testing.T) {
+	valid := Validation{}
+
+	if valid.AlphaDash("a,1-@ $", "alphaDash").Ok {
+		t.Error("\"a,1-@ $\" are valid alpha or numeric or dash(-_) characters should be false")
+	}
+	if !valid.AlphaDash("1234aB-_", "alphaDash").Ok {
+		t.Error("\"1234aB\" are valid alpha or numeric or dash(-_) characters should be true")
+	}
+}
+
+func TestEmail(t *testing.T) {
+	valid := Validation{}
+
+	if valid.Email("not@a email", "email").Ok {
+		t.Error("\"not@a email\" is a valid email address should be false")
+	}
+	if !valid.Email("suchuangji@gmail.com", "email").Ok {
+		t.Error("\"suchuangji@gmail.com\" is a valid email address should be true")
+	}
+}
+
+func TestIP(t *testing.T) {
+	valid := Validation{}
+
+	if valid.IP("11.255.255.256", "IP").Ok {
+		t.Error("\"11.255.255.256\" is a valid ip address should be false")
+	}
+	if !valid.IP("01.11.11.11", "IP").Ok {
+		t.Error("\"suchuangji@gmail.com\" is a valid ip address should be true")
+	}
+}
+
+func TestBase64(t *testing.T) {
+	valid := Validation{}
+
+	if valid.Base64("suchuangji@gmail.com", "base64").Ok {
+		t.Error("\"suchuangji@gmail.com\" are a valid base64 characters should be false")
+	}
+	if !valid.Base64("c3VjaHVhbmdqaUBnbWFpbC5jb20=", "base64").Ok {
+		t.Error("\"c3VjaHVhbmdqaUBnbWFpbC5jb20=\" are a valid base64 characters should be true")
+	}
+}
+
+func TestValid(t *testing.T) {
+	type user struct {
+		Id   int
+		Name string `valid:"Required"`
+		Age  int    `valid:"Required;Range(1, 140)"`
+	}
+	valid := Validation{}
+
+	u := user{Name: "test", Age: 40}
+	b, err := valid.Valid(u)
+	if err != nil {
+		t.Fatal(err)
+	}
+	if !b {
+		t.Error("validation should be passed")
+	}
+
+	uptr := &user{Name: "test", Age: 180}
+	b, err = valid.Valid(uptr)
+	if err != nil {
+		t.Fatal(err)
+	}
+	if b {
+		t.Error("validation should not be passed")
+	}
+}

validation/validators.go

@@ -0,0 +1,355 @@
+package validation
+
+import (
+	"fmt"
+	"reflect"
+	"regexp"
+	"time"
+)
+
+type Validator interface {
+	IsSatisfied(interface{}) bool
+	DefaultMessage() string
+	GetKey() string
+}
+
+type Required struct {
+	Key string
+}
+
+func (r Required) IsSatisfied(obj interface{}) bool {
+	if obj == nil {
+		return false
+	}
+
+	if str, ok := obj.(string); ok {
+		return len(str) > 0
+	}
+	if b, ok := obj.(bool); ok {
+		return b
+	}
+	if i, ok := obj.(int); ok {
+		return i != 0
+	}
+	if t, ok := obj.(time.Time); ok {
+		return !t.IsZero()
+	}
+	v := reflect.ValueOf(obj)
+	if v.Kind() == reflect.Slice {
+		return v.Len() > 0
+	}
+	return true
+}
+
+func (r Required) DefaultMessage() string {
+	return "Required"
+}
+
+func (r Required) GetKey() string {
+	return r.Key
+}
+
+type Min struct {
+	Min int
+	Key string
+}
+
+func (m Min) IsSatisfied(obj interface{}) bool {
+	num, ok := obj.(int)
+	if ok {
+		return num >= m.Min
+	}
+	return false
+}
+
+func (m Min) DefaultMessage() string {
+	return fmt.Sprint("Minimum is ", m.Min)
+}
+
+func (m Min) GetKey() string {
+	return m.Key
+}
+
+type Max struct {
+	Max int
+	Key string
+}
+
+func (m Max) IsSatisfied(obj interface{}) bool {
+	num, ok := obj.(int)
+	if ok {
+		return num <= m.Max
+	}
+	return false
+}
+
+func (m Max) DefaultMessage() string {
+	return fmt.Sprint("Maximum is ", m.Max)
+}
+
+func (m Max) GetKey() string {
+	return m.Key
+}
+
+// Requires an integer to be within Min, Max inclusive.
+type Range struct {
+	Min
+	Max
+	Key string
+}
+
+func (r Range) IsSatisfied(obj interface{}) bool {
+	return r.Min.IsSatisfied(obj) && r.Max.IsSatisfied(obj)
+}
+
+func (r Range) DefaultMessage() string {
+	return fmt.Sprint("Range is ", r.Min.Min, " to ", r.Max.Max)
+}
+
+func (r Range) GetKey() string {
+	return r.Key
+}
+
+// Requires an array or string to be at least a given length.
+type MinSize struct {
+	Min int
+	Key string
+}
+
+func (m MinSize) IsSatisfied(obj interface{}) bool {
+	if str, ok := obj.(string); ok {
+		return len(str) >= m.Min
+	}
+	v := reflect.ValueOf(obj)
+	if v.Kind() == reflect.Slice {
+		return v.Len() >= m.Min
+	}
+	return false
+}
+
+func (m MinSize) DefaultMessage() string {
+	return fmt.Sprint("Minimum size is ", m.Min)
+}
+
+func (m MinSize) GetKey() string {
+	return m.Key
+}
+
+// Requires an array or string to be at most a given length.
+type MaxSize struct {
+	Max int
+	Key string
+}
+
+func (m MaxSize) IsSatisfied(obj interface{}) bool {
+	if str, ok := obj.(string); ok {
+		return len(str) <= m.Max
+	}
+	v := reflect.ValueOf(obj)
+	if v.Kind() == reflect.Slice {
+		return v.Len() <= m.Max
+	}
+	return false
+}
+
+func (m MaxSize) DefaultMessage() string {
+	return fmt.Sprint("Maximum size is ", m.Max)
+}
+
+func (m MaxSize) GetKey() string {
+	return m.Key
+}
+
+// Requires an array or string to be exactly a given length.
+type Length struct {
+	N   int
+	Key string
+}
+
+func (l Length) IsSatisfied(obj interface{}) bool {
+	if str, ok := obj.(string); ok {
+		return len(str) == l.N
+	}
+	v := reflect.ValueOf(obj)
+	if v.Kind() == reflect.Slice {
+		return v.Len() == l.N
+	}
+	return false
+}
+
+func (l Length) DefaultMessage() string {
+	return fmt.Sprint("Required length is ", l.N)
+}
+
+func (l Length) GetKey() string {
+	return l.Key
+}
+
+type Alpha struct {
+	Key string
+}
+
+func (a Alpha) IsSatisfied(obj interface{}) bool {
+	if str, ok := obj.(string); ok {
+		for _, v := range str {
+			if ('Z' < v || v < 'A') && ('z' < v || v < 'a') {
+				return false
+			}
+		}
+		return true
+	}
+	return false
+}
+
+func (a Alpha) DefaultMessage() string {
+	return fmt.Sprint("Must be valid alpha characters")
+}
+
+func (a Alpha) GetKey() string {
+	return a.Key
+}
+
+type Numeric struct {
+	Key string
+}
+
+func (n Numeric) IsSatisfied(obj interface{}) bool {
+	if str, ok := obj.(string); ok {
+		for _, v := range str {
+			if '9' < v || v < '0' {
+				return false
+			}
+		}
+		return true
+	}
+	return false
+}
+
+func (n Numeric) DefaultMessage() string {
+	return fmt.Sprint("Must be valid numeric characters")
+}
+
+func (n Numeric) GetKey() string {
+	return n.Key
+}
+
+type AlphaNumeric struct {
+	Key string
+}
+
+func (a AlphaNumeric) IsSatisfied(obj interface{}) bool {
+	if str, ok := obj.(string); ok {
+		for _, v := range str {
+			if ('Z' < v || v < 'A') && ('z' < v || v < 'a') && ('9' < v || v < '0') {
+				return false
+			}
+		}
+		return true
+	}
+	return false
+}
+
+func (a AlphaNumeric) DefaultMessage() string {
+	return fmt.Sprint("Must be valid alpha or numeric characters")
+}
+
+func (a AlphaNumeric) GetKey() string {
+	return a.Key
+}
+
+// Requires a string to match a given regex.
+type Match struct {
+	Regexp *regexp.Regexp
+	Key    string
+}
+
+func (m Match) IsSatisfied(obj interface{}) bool {
+	str := obj.(string)
+	return m.Regexp.MatchString(str)
+}
+
+func (m Match) DefaultMessage() string {
+	return fmt.Sprint("Must match ", m.Regexp)
+}
+
+func (m Match) GetKey() string {
+	return m.Key
+}
+
+// Requires a string to not match a given regex.
+type NoMatch struct {
+	Match
+	Key string
+}
+
+func (n NoMatch) IsSatisfied(obj interface{}) bool {
+	return !n.Match.IsSatisfied(obj)
+}
+
+func (n NoMatch) DefaultMessage() string {
+	return fmt.Sprint("Must not match ", n.Regexp)
+}
+
+func (n NoMatch) GetKey() string {
+	return n.Key
+}
+
+var alphaDashPattern = regexp.MustCompile("[^\\d\\w-_]")
+
+type AlphaDash struct {
+	NoMatch
+	Key string
+}
+
+func (a AlphaDash) DefaultMessage() string {
+	return fmt.Sprint("Must be valid alpha or numeric or dash(-_) characters")
+}
+
+func (a AlphaDash) GetKey() string {
+	return a.Key
+}
+
+var emailPattern = regexp.MustCompile("[\\w!#$%&'*+/=?^_`{|}~-]+(?:\\.[\\w!#$%&'*+/=?^_`{|}~-]+)*@(?:[\\w](?:[\\w-]*[\\w])?\\.)+[a-zA-Z0-9](?:[\\w-]*[\\w])?")
+
+type Email struct {
+	Match
+	Key string
+}
+
+func (e Email) DefaultMessage() string {
+	return fmt.Sprint("Must be a valid email address")
+}
+
+func (e Email) GetKey() string {
+	return e.Key
+}
+
+var ipPattern = regexp.MustCompile("^((2[0-4]\\d|25[0-5]|[01]?\\d\\d?)\\.){3}(2[0-4]\\d|25[0-5]|[01]?\\d\\d?)$")
+
+type IP struct {
+	Match
+	Key string
+}
+
+func (i IP) DefaultMessage() string {
+	return fmt.Sprint("Must be a valid ip address")
+}
+
+func (i IP) GetKey() string {
+	return i.Key
+}
+
+var base64Pattern = regexp.MustCompile("^(?:[A-Za-z0-99+/]{4})*(?:[A-Za-z0-9+/]{2}==|[A-Za-z0-9+/]{3}=)?$")
+
+type Base64 struct {
+	Match
+	Key string
+}
+
+func (b Base64) DefaultMessage() string {
+	return fmt.Sprint("Must be valid base64 characters")
+}
+
+func (b Base64) GetKey() string {
+	return b.Key
+}