mirror of
https://github.com/astaxie/beego.git
synced 2024-11-22 22:10:55 +00:00
81 lines
2.0 KiB
Go
81 lines
2.0 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 auth
|
|
|
|
// Example:
|
|
// func SecretAuth(username, password string) bool {
|
|
// if username == "astaxie" && password == "helloBeego" {
|
|
// return true
|
|
// }
|
|
// return false
|
|
// }
|
|
// authPlugin := auth.NewBasicAuthenticator(SecretAuth, "My Realm")
|
|
// beego.AddFilter("*","AfterStatic",authPlugin)
|
|
|
|
import (
|
|
"encoding/base64"
|
|
"net/http"
|
|
"strings"
|
|
|
|
"github.com/astaxie/beego"
|
|
"github.com/astaxie/beego/context"
|
|
)
|
|
|
|
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)
|
|
}
|
|
}
|
|
}
|
|
|
|
type SecretProvider func(user, pass string) bool
|
|
|
|
type BasicAuth struct {
|
|
Secrets SecretProvider
|
|
Realm string
|
|
}
|
|
|
|
/*
|
|
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 ""
|
|
}
|
|
|
|
/*
|
|
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"))
|
|
}
|