mirror of
https://github.com/astaxie/beego.git
synced 2024-11-05 12:20:53 +00:00
108 lines
3.1 KiB
Go
108 lines
3.1 KiB
Go
// 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 auth provides handlers to enable basic auth support.
|
|
// Simple Usage:
|
|
// import(
|
|
// "github.com/astaxie/beego"
|
|
// "github.com/astaxie/beego/plugins/auth"
|
|
// )
|
|
//
|
|
// func main(){
|
|
// // authenticate every request
|
|
// beego.InsertFilter("*", beego.BeforeRouter,auth.Basic("username","secretpassword"))
|
|
// beego.Run()
|
|
// }
|
|
//
|
|
//
|
|
// Advanced Usage:
|
|
//
|
|
// func SecretAuth(username, password string) bool {
|
|
// return username == "astaxie" && password == "helloBeego"
|
|
// }
|
|
// authPlugin := auth.NewBasicAuthenticator(SecretAuth, "Authorization Required")
|
|
// beego.InsertFilter("*", beego.BeforeRouter,authPlugin)
|
|
package auth
|
|
|
|
import (
|
|
"encoding/base64"
|
|
"net/http"
|
|
"strings"
|
|
|
|
"github.com/astaxie/beego"
|
|
"github.com/astaxie/beego/context"
|
|
)
|
|
|
|
var defaultRealm = "Authorization Required"
|
|
|
|
// Basic is the http basic auth
|
|
func Basic(username string, password string) beego.FilterFunc {
|
|
secrets := func(user, pass string) bool {
|
|
return user == username && pass == password
|
|
}
|
|
return NewBasicAuthenticator(secrets, defaultRealm)
|
|
}
|
|
|
|
// NewBasicAuthenticator return the BasicAuth
|
|
func NewBasicAuthenticator(secrets SecretProvider, Realm string) beego.FilterFunc {
|
|
return func(ctx *context.Context) {
|
|
a := &BasicAuth{Secrets: secrets, Realm: Realm}
|
|
if username := a.CheckAuth(ctx.Request); username == "" {
|
|
a.RequireAuth(ctx.ResponseWriter, ctx.Request)
|
|
}
|
|
}
|
|
}
|
|
|
|
// SecretProvider is the SecretProvider function
|
|
type SecretProvider func(user, pass string) bool
|
|
|
|
// BasicAuth store the SecretProvider and Realm
|
|
type BasicAuth struct {
|
|
Secrets SecretProvider
|
|
Realm string
|
|
}
|
|
|
|
// CheckAuth Checks the username/password combination from the request. Returns
|
|
// either an empty string (authentication failed) or the name of the
|
|
// authenticated user.
|
|
// Supports MD5 and SHA1 password entries
|
|
func (a *BasicAuth) CheckAuth(r *http.Request) string {
|
|
s := strings.SplitN(r.Header.Get("Authorization"), " ", 2)
|
|
if len(s) != 2 || s[0] != "Basic" {
|
|
return ""
|
|
}
|
|
|
|
b, err := base64.StdEncoding.DecodeString(s[1])
|
|
if err != nil {
|
|
return ""
|
|
}
|
|
pair := strings.SplitN(string(b), ":", 2)
|
|
if len(pair) != 2 {
|
|
return ""
|
|
}
|
|
|
|
if a.Secrets(pair[0], pair[1]) {
|
|
return pair[0]
|
|
}
|
|
return ""
|
|
}
|
|
|
|
// RequireAuth http.Handler for BasicAuth which initiates the authentication process
|
|
// (or requires reauthentication).
|
|
func (a *BasicAuth) RequireAuth(w http.ResponseWriter, r *http.Request) {
|
|
w.Header().Set("WWW-Authenticate", `Basic realm="`+a.Realm+`"`)
|
|
w.WriteHeader(401)
|
|
w.Write([]byte("401 Unauthorized\n"))
|
|
}
|