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context.go
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context.go
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// Copyright 2014 beego Author. All Rights Reserved.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
// Package context provide the context utils
// Usage:
//
// import "github.com/beego/beego/v2/server/web/context"
//
// ctx := context.Context{Request:req,ResponseWriter:rw}
//
// more docs http://beego.me/docs/module/context.md
package context
import (
"bufio"
"net"
"net/http"
"github.com/beego/beego/v2/server/web/context"
)
// commonly used mime-types
const (
ApplicationJSON = context.ApplicationJSON
ApplicationXML = context.ApplicationXML
ApplicationYAML = context.ApplicationYAML
TextXML = context.TextXML
)
// NewContext return the Context with Input and Output
func NewContext() *Context {
return (*Context)(context.NewContext())
}
// Context Http request context struct including BeegoInput, BeegoOutput, http.Request and http.ResponseWriter.
// BeegoInput and BeegoOutput provides some api to operate request and response more easily.
type Context context.Context
// Reset init Context, BeegoInput and BeegoOutput
func (ctx *Context) Reset(rw http.ResponseWriter, r *http.Request) {
(*context.Context)(ctx).Reset(rw, r)
}
// Redirect does redirection to localurl with http header status code.
func (ctx *Context) Redirect(status int, localurl string) {
(*context.Context)(ctx).Redirect(status, localurl)
}
// Abort stops this request.
// if beego.ErrorMaps exists, panic body.
func (ctx *Context) Abort(status int, body string) {
(*context.Context)(ctx).Abort(status, body)
}
// WriteString Write string to response body.
// it sends response body.
func (ctx *Context) WriteString(content string) {
(*context.Context)(ctx).WriteString(content)
}
// GetCookie Get cookie from request by a given key.
// It's alias of BeegoInput.Cookie.
func (ctx *Context) GetCookie(key string) string {
return (*context.Context)(ctx).GetCookie(key)
}
// SetCookie Set cookie for response.
// It's alias of BeegoOutput.Cookie.
func (ctx *Context) SetCookie(name string, value string, others ...interface{}) {
(*context.Context)(ctx).SetCookie(name, value, others)
}
// GetSecureCookie Get secure cookie from request by a given key.
func (ctx *Context) GetSecureCookie(Secret, key string) (string, bool) {
return (*context.Context)(ctx).GetSecureCookie(Secret, key)
}
// SetSecureCookie Set Secure cookie for response.
func (ctx *Context) SetSecureCookie(Secret, name, value string, others ...interface{}) {
(*context.Context)(ctx).SetSecureCookie(Secret, name, value, others)
}
// XSRFToken creates a xsrf token string and returns.
func (ctx *Context) XSRFToken(key string, expire int64) string {
return (*context.Context)(ctx).XSRFToken(key, expire)
}
// CheckXSRFCookie checks xsrf token in this request is valid or not.
// the token can provided in request header "X-Xsrftoken" and "X-CsrfToken"
// or in form field value named as "_xsrf".
func (ctx *Context) CheckXSRFCookie() bool {
return (*context.Context)(ctx).CheckXSRFCookie()
}
// RenderMethodResult renders the return value of a controller method to the output
func (ctx *Context) RenderMethodResult(result interface{}) {
(*context.Context)(ctx).RenderMethodResult(result)
}
// Response is a wrapper for the http.ResponseWriter
// started set to true if response was written to then don't execute other handler
type Response context.Response
// Write writes the data to the connection as part of an HTTP reply,
// and sets `started` to true.
// started means the response has sent out.
func (r *Response) Write(p []byte) (int, error) {
return (*context.Response)(r).Write(p)
}
// WriteHeader sends an HTTP response header with status code,
// and sets `started` to true.
func (r *Response) WriteHeader(code int) {
(*context.Response)(r).WriteHeader(code)
}
// Hijack hijacker for http
func (r *Response) Hijack() (net.Conn, *bufio.ReadWriter, error) {
return (*context.Response)(r).Hijack()
}
// Flush http.Flusher
func (r *Response) Flush() {
(*context.Response)(r).Flush()
}
// CloseNotify http.CloseNotifier
func (r *Response) CloseNotify() <-chan bool {
return (*context.Response)(r).CloseNotify()
}
// Pusher http.Pusher
func (r *Response) Pusher() (pusher http.Pusher) {
return (*context.Response)(r).Pusher()
}