mirror of
https://github.com/astaxie/beego.git
synced 2024-11-23 00:20:55 +00:00
113 lines
3.1 KiB
Go
113 lines
3.1 KiB
Go
// Beego (http://beego.me/)
|
|
// @description beego is an open-source, high-performance web framework for the Go programming language.
|
|
// @link http://github.com/astaxie/beego for the canonical source repository
|
|
// @license http://github.com/astaxie/beego/blob/master/LICENSE
|
|
// @authors astaxie
|
|
|
|
package context
|
|
|
|
import (
|
|
"crypto/hmac"
|
|
"crypto/sha1"
|
|
"encoding/base64"
|
|
"fmt"
|
|
"net/http"
|
|
"strconv"
|
|
"strings"
|
|
"time"
|
|
|
|
"github.com/astaxie/beego/middleware"
|
|
)
|
|
|
|
// Http request context struct including BeegoInput, BeegoOutput, http.Request and http.ResponseWriter.
|
|
// BeegoInput and BeegoOutput provides some api to operate request and response more easily.
|
|
type Context struct {
|
|
Input *BeegoInput
|
|
Output *BeegoOutput
|
|
Request *http.Request
|
|
ResponseWriter http.ResponseWriter
|
|
}
|
|
|
|
// Redirect does redirection to localurl with http header status code.
|
|
// It sends http response header directly.
|
|
func (ctx *Context) Redirect(status int, localurl string) {
|
|
ctx.Output.Header("Location", localurl)
|
|
ctx.Output.SetStatus(status)
|
|
}
|
|
|
|
// Abort stops this request.
|
|
// if middleware.ErrorMaps exists, panic body.
|
|
// if middleware.HTTPExceptionMaps exists, panic HTTPException struct with status and body string.
|
|
func (ctx *Context) Abort(status int, body string) {
|
|
ctx.Output.SetStatus(status)
|
|
// first panic from ErrorMaps, is is user defined error functions.
|
|
if _, ok := middleware.ErrorMaps[body]; ok {
|
|
panic(body)
|
|
}
|
|
// second panic from HTTPExceptionMaps, it is system defined functions.
|
|
if e, ok := middleware.HTTPExceptionMaps[status]; ok {
|
|
if len(body) >= 1 {
|
|
e.Description = body
|
|
}
|
|
panic(e)
|
|
}
|
|
// last panic user string
|
|
panic(body)
|
|
}
|
|
|
|
// Write string to response body.
|
|
// it sends response body.
|
|
func (ctx *Context) WriteString(content string) {
|
|
ctx.Output.Body([]byte(content))
|
|
}
|
|
|
|
// Get cookie from request by a given key.
|
|
// It's alias of BeegoInput.Cookie.
|
|
func (ctx *Context) GetCookie(key string) string {
|
|
return ctx.Input.Cookie(key)
|
|
}
|
|
|
|
// Set cookie for response.
|
|
// It's alias of BeegoOutput.Cookie.
|
|
func (ctx *Context) SetCookie(name string, value string, others ...interface{}) {
|
|
ctx.Output.Cookie(name, value, others...)
|
|
}
|
|
|
|
// Get secure cookie from request by a given key.
|
|
func (ctx *Context) GetSecureCookie(Secret, key string) (string, bool) {
|
|
val := ctx.Input.Cookie(key)
|
|
if val == "" {
|
|
return "", false
|
|
}
|
|
|
|
parts := strings.SplitN(val, "|", 3)
|
|
|
|
if len(parts) != 3 {
|
|
return "", false
|
|
}
|
|
|
|
vs := parts[0]
|
|
timestamp := parts[1]
|
|
sig := parts[2]
|
|
|
|
h := hmac.New(sha1.New, []byte(Secret))
|
|
fmt.Fprintf(h, "%s%s", vs, timestamp)
|
|
|
|
if fmt.Sprintf("%02x", h.Sum(nil)) != sig {
|
|
return "", false
|
|
}
|
|
res, _ := base64.URLEncoding.DecodeString(vs)
|
|
return string(res), true
|
|
}
|
|
|
|
// Set Secure cookie for response.
|
|
func (ctx *Context) SetSecureCookie(Secret, name, value string, others ...interface{}) {
|
|
vs := base64.URLEncoding.EncodeToString([]byte(value))
|
|
timestamp := strconv.FormatInt(time.Now().UnixNano(), 10)
|
|
h := hmac.New(sha1.New, []byte(Secret))
|
|
fmt.Fprintf(h, "%s%s", vs, timestamp)
|
|
sig := fmt.Sprintf("%02x", h.Sum(nil))
|
|
cookie := strings.Join([]string{vs, timestamp, sig}, "|")
|
|
ctx.Output.Cookie(name, cookie, others...)
|
|
}
|