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Code Issues Releases Activity

add api comments in file config.go, controller.go, filter.go and flash.go

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This commit is contained in:
傅小黑
2013-12-20 21:16:26 +08:00
parent 933e98e4f2
commit b459cf2347
4 changed files with 126 additions and 31 deletions
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74
controller.go
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@ -25,9 +25,12 @@ import (
)
var (
// custom error when user stop request handler manually.
USERSTOPRUN = errors.New("User stop run")
)
// Controller defines some basic http request handler operations, such as
// http context, template and view, session and xsrf.
type Controller struct {
Ctx *context.Context
Data map[interface{}]interface{}
@ -43,6 +46,7 @@ type Controller struct {
AppController interface{}
}
// ControllerInterface is an interface to uniform all controller handler.
type ControllerInterface interface {
Init(ct *context.Context, controllerName, actionName string, app interface{})
Prepare()
@ -59,6 +63,7 @@ type ControllerInterface interface {
CheckXsrfCookie() bool
}
// Init generates default values of controller operations.
func (c *Controller) Init(ctx *context.Context, controllerName, actionName string, app interface{}) {
c.Data = make(map[interface{}]interface{})
c.Layout = ""
@ -70,42 +75,52 @@ func (c *Controller) Init(ctx *context.Context, controllerName, actionName strin
c.AppController = app
}
// 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", 405)
}
// Post adds a request function to handle POST request.
func (c *Controller) Post() {
http.Error(c.Ctx.ResponseWriter, "Method Not Allowed", 405)
}
// Delete adds a request function to handle DELETE request.
func (c *Controller) Delete() {
http.Error(c.Ctx.ResponseWriter, "Method Not Allowed", 405)
}
// Put adds a request function to handle PUT request.
func (c *Controller) Put() {
http.Error(c.Ctx.ResponseWriter, "Method Not Allowed", 405)
}
// Head adds a request function to handle HEAD request.
func (c *Controller) Head() {
http.Error(c.Ctx.ResponseWriter, "Method Not Allowed", 405)
}
// Patch adds a request function to handle PATCH request.
func (c *Controller) Patch() {
http.Error(c.Ctx.ResponseWriter, "Method Not Allowed", 405)
}
// Options adds a request function to handle OPTIONS request.
func (c *Controller) Options() {
http.Error(c.Ctx.ResponseWriter, "Method Not Allowed", 405)
}
// Render sends the response with rendered template bytes as text/html type.
func (c *Controller) Render() error {
rb, err := c.RenderBytes()
@ -118,24 +133,26 @@ func (c *Controller) Render() error {
return nil
}
// 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 renderd tempate string. Do not send out response.
func (c *Controller) RenderBytes() ([]byte, error) {
//if the controller has set layout, then first get the tplname's content set the content to the layout
if c.Layout != "" {
if c.TplNames == "" {
c.TplNames = strings.ToLower(c.controllerName) + "/" + strings.ToLower(c.actionName) + "." + c.TplExt
c.TplNames = strings.ToLower(c.controllerName)+"/"+strings.ToLower(c.actionName)+"." + c.TplExt
}
if RunMode == "dev" {
BuildTemplate(ViewsPath)
}
newbytes := bytes.NewBufferString("")
if _, ok := BeeTemplates[c.TplNames]; !ok {
panic("can't find templatefile in the path:" + c.TplNames)
return []byte{}, errors.New("can't find templatefile in the path:" + c.TplNames)
panic("can't find templatefile in the path:"+c.TplNames)
return []byte{}, errors.New("can't find templatefile in the path:"+c.TplNames)
}
err := BeeTemplates[c.TplNames].ExecuteTemplate(newbytes, c.TplNames, c.Data)
if err != nil {
@ -154,15 +171,15 @@ func (c *Controller) RenderBytes() ([]byte, error) {
return icontent, nil
} else {
if c.TplNames == "" {
c.TplNames = strings.ToLower(c.controllerName) + "/" + strings.ToLower(c.actionName) + "." + c.TplExt
c.TplNames = strings.ToLower(c.controllerName)+"/"+strings.ToLower(c.actionName)+"." + c.TplExt
}
if RunMode == "dev" {
BuildTemplate(ViewsPath)
}
ibytes := bytes.NewBufferString("")
if _, ok := BeeTemplates[c.TplNames]; !ok {
panic("can't find templatefile in the path:" + c.TplNames)
return []byte{}, errors.New("can't find templatefile in the path:" + c.TplNames)
panic("can't find templatefile in the path:"+c.TplNames)
return []byte{}, errors.New("can't find templatefile in the path:"+c.TplNames)
}
err := BeeTemplates[c.TplNames].ExecuteTemplate(ibytes, c.TplNames, c.Data)
if err != nil {
@ -175,10 +192,12 @@ func (c *Controller) RenderBytes() ([]byte, error) {
return []byte{}, nil
}
// Redirect sends the redirection response to url with status code.
func (c *Controller) Redirect(url string, code int) {
c.Ctx.Redirect(code, url)
}
// Aborts 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 {
@ -188,21 +207,26 @@ func (c *Controller) Abort(code string) {
}
}
// StopRun makes panic of USERSTOPRUN error and go to recover function if defined.
func (c *Controller) StopRun() {
panic(USERSTOPRUN)
}
// 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 ...string) string {
if len(endpoint) <= 0 {
return ""
}
if endpoint[0] == '.' {
return UrlFor(reflect.Indirect(reflect.ValueOf(c.AppController)).Type().Name()+endpoint, values...)
return UrlFor(reflect.Indirect(reflect.ValueOf(c.AppController)).Type().Name() + endpoint, values...)
} else {
return UrlFor(endpoint, values...)
}
return ""
}
// ServeJson sends a json response with encoding charset.
func (c *Controller) ServeJson(encoding ...bool) {
var hasIndent bool
var hasencoding bool
@ -217,6 +241,7 @@ func (c *Controller) ServeJson(encoding ...bool) {
c.Ctx.Output.Json(c.Data["json"], hasIndent, hasencoding)
}
// ServeJson sends a jsonp response.
func (c *Controller) ServeJsonp() {
var hasIndent bool
if RunMode == "prod" {
@ -227,6 +252,7 @@ func (c *Controller) ServeJsonp() {
c.Ctx.Output.Jsonp(c.Data["jsonp"], hasIndent)
}
// ServeJson sends xml response.
func (c *Controller) ServeXml() {
var hasIndent bool
if RunMode == "prod" {
@ -237,6 +263,7 @@ func (c *Controller) ServeXml() {
c.Ctx.Output.Xml(c.Data["xml"], hasIndent)
}
// Input returns the input data map from POST or PUT request body and query string.
func (c *Controller) Input() url.Values {
ct := c.Ctx.Request.Header.Get("Content-Type")
if strings.Contains(ct, "multipart/form-data") {
@ -247,14 +274,18 @@ func (c *Controller) Input() url.Values {
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.
func (c *Controller) GetString(key string) string {
return c.Input().Get(key)
}
// GetStrings returns the input string slice by key string.
// it's designed for multi-value input field such as checkbox(input[type=checkbox]), multi-selection.
func (c *Controller) GetStrings(key string) []string {
r := c.Ctx.Request
if r.Form == nil {
@ -267,29 +298,36 @@ func (c *Controller) GetStrings(key string) []string {
return []string{}
}
// GetInt returns input value as int64.
func (c *Controller) GetInt(key string) (int64, error) {
return strconv.ParseInt(c.Input().Get(key), 10, 64)
}
// GetBool returns input value as bool.
func (c *Controller) GetBool(key string) (bool, error) {
return strconv.ParseBool(c.Input().Get(key))
}
// GetFloat returns input value as float64.
func (c *Controller) GetFloat(key string) (float64, error) {
return strconv.ParseFloat(c.Input().Get(key), 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)
}
// 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)
f, err := os.OpenFile(tofile, os.O_WRONLY | os.O_CREATE | os.O_TRUNC, 0666)
if err != nil {
return err
}
@ -298,6 +336,7 @@ func (c *Controller) SaveToFile(fromfile, tofile string) error {
return nil
}
// StartSession starts session and load old session data info this controller.
func (c *Controller) StartSession() session.SessionStore {
if c.CruSession == nil {
c.CruSession = c.Ctx.Input.CruSession
@ -305,6 +344,7 @@ func (c *Controller) StartSession() session.SessionStore {
return c.CruSession
}
// SetSession puts value into session.
func (c *Controller) SetSession(name interface{}, value interface{}) {
if c.CruSession == nil {
c.StartSession()
@ -312,6 +352,7 @@ func (c *Controller) SetSession(name interface{}, value interface{}) {
c.CruSession.Set(name, value)
}
// GetSession gets value from session.
func (c *Controller) GetSession(name interface{}) interface{} {
if c.CruSession == nil {
c.StartSession()
@ -319,6 +360,7 @@ func (c *Controller) GetSession(name interface{}) interface{} {
return c.CruSession.Get(name)
}
// SetSession removes value from session.
func (c *Controller) DelSession(name interface{}) {
if c.CruSession == nil {
c.StartSession()
@ -326,19 +368,24 @@ func (c *Controller) DelSession(name interface{}) {
c.CruSession.Delete(name)
}
// SessionRegenerateID regenerates session id for this session.
// the session data have no changes.
func (c *Controller) SessionRegenerateID() {
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() {
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) {
val := c.Ctx.GetCookie(key)
if val == "" {
@ -365,6 +412,7 @@ func (c *Controller) GetSecureCookie(Secret, key string) (string, bool) {
return string(res), true
}
// SetSecureCookie puts value into cookie after encoded the value.
func (c *Controller) SetSecureCookie(Secret, name, val string, age int64) {
vs := base64.URLEncoding.EncodeToString([]byte(val))
timestamp := strconv.FormatInt(time.Now().UnixNano(), 10)
@ -375,6 +423,7 @@ func (c *Controller) SetSecureCookie(Secret, name, val string, age int64) {
c.Ctx.SetCookie(name, cookie, age, "/")
}
// XsrfToken creates a xsrf token string and returns.
func (c *Controller) XsrfToken() string {
if c._xsrf_token == "" {
token, ok := c.GetSecureCookie(XSRFKEY, "_xsrf")
@ -393,6 +442,9 @@ func (c *Controller) XsrfToken() string {
return c._xsrf_token
}
// 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 {
token := c.GetString("_xsrf")
if token == "" {
@ -409,16 +461,18 @@ func (c *Controller) CheckXsrfCookie() bool {
return true
}
// XsrfFormHtml writes an input field contains xsrf token value.
func (c *Controller) XsrfFormHtml() string {
return "<input type=\"hidden\" name=\"_xsrf\" value=\"" +
c._xsrf_token + "\"/>"
c._xsrf_token + "\"/>"
}
// GetControllerAndAction gets the executing controller name and action name.
func (c *Controller) GetControllerAndAction() (controllerName, actionName string) {
return c.controllerName, c.actionName
}
//utils func for controller internal
// getRandomString returns random string.
func getRandomString(n int) string {
const alphanum = "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz"
var bytes = make([]byte, n)