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change oauth2 to modules
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skyblue
parent
93f6e98047
commit
adf42a5b54
233
modules/oauth2/oauth2.go
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233
modules/oauth2/oauth2.go
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@ -0,0 +1,233 @@
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// Copyright 2014 Google Inc. All Rights Reserved.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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// Package oauth2 contains Martini handlers to provide
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// user login via an OAuth 2.0 backend.
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package oauth2
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import (
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"encoding/json"
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"fmt"
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"net/http"
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"net/url"
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"strings"
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"time"
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"code.google.com/p/goauth2/oauth"
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"github.com/go-martini/martini"
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"github.com/martini-contrib/sessions"
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)
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const (
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codeRedirect = 302
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keyToken = "oauth2_token"
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keyNextPage = "next"
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)
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var (
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// Path to handle OAuth 2.0 logins.
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PathLogin = "/login"
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// Path to handle OAuth 2.0 logouts.
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PathLogout = "/logout"
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// Path to handle callback from OAuth 2.0 backend
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// to exchange credentials.
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PathCallback = "/oauth2callback"
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// Path to handle error cases.
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PathError = "/oauth2error"
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)
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// Represents OAuth2 backend options.
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type Options struct {
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ClientId string
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ClientSecret string
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RedirectURL string
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Scopes []string
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AuthUrl string
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TokenUrl string
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}
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// Represents a container that contains
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// user's OAuth 2.0 access and refresh tokens.
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type Tokens interface {
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Access() string
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Refresh() string
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IsExpired() bool
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ExpiryTime() time.Time
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ExtraData() map[string]string
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}
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type token struct {
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oauth.Token
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}
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func (t *token) ExtraData() map[string]string {
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return t.Extra
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}
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// Returns the access token.
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func (t *token) Access() string {
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return t.AccessToken
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}
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// Returns the refresh token.
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func (t *token) Refresh() string {
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return t.RefreshToken
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}
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// Returns whether the access token is
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// expired or not.
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func (t *token) IsExpired() bool {
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if t == nil {
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return true
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}
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return t.Expired()
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}
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// Returns the expiry time of the user's
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// access token.
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func (t *token) ExpiryTime() time.Time {
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return t.Expiry
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}
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// Formats tokens into string.
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func (t *token) String() string {
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return fmt.Sprintf("tokens: %v", t)
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}
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// Returns a new Google OAuth 2.0 backend endpoint.
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func Google(opts *Options) martini.Handler {
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opts.AuthUrl = "https://accounts.google.com/o/oauth2/auth"
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opts.TokenUrl = "https://accounts.google.com/o/oauth2/token"
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return NewOAuth2Provider(opts)
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}
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// Returns a new Github OAuth 2.0 backend endpoint.
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func Github(opts *Options) martini.Handler {
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opts.AuthUrl = "https://github.com/login/oauth/authorize"
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opts.TokenUrl = "https://github.com/login/oauth/access_token"
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return NewOAuth2Provider(opts)
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}
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func Facebook(opts *Options) martini.Handler {
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opts.AuthUrl = "https://www.facebook.com/dialog/oauth"
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opts.TokenUrl = "https://graph.facebook.com/oauth/access_token"
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return NewOAuth2Provider(opts)
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}
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// Returns a generic OAuth 2.0 backend endpoint.
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func NewOAuth2Provider(opts *Options) martini.Handler {
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config := &oauth.Config{
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ClientId: opts.ClientId,
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ClientSecret: opts.ClientSecret,
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RedirectURL: opts.RedirectURL,
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Scope: strings.Join(opts.Scopes, " "),
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AuthURL: opts.AuthUrl,
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TokenURL: opts.TokenUrl,
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}
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transport := &oauth.Transport{
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Config: config,
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Transport: http.DefaultTransport,
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}
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return func(s sessions.Session, c martini.Context, w http.ResponseWriter, r *http.Request) {
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if r.Method == "GET" {
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switch r.URL.Path {
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case PathLogin:
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login(transport, s, w, r)
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case PathLogout:
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logout(transport, s, w, r)
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case PathCallback:
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handleOAuth2Callback(transport, s, w, r)
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}
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}
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tk := unmarshallToken(s)
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if tk != nil {
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// check if the access token is expired
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if tk.IsExpired() && tk.Refresh() == "" {
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s.Delete(keyToken)
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tk = nil
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}
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}
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// Inject tokens.
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c.MapTo(tk, (*Tokens)(nil))
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}
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}
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// Handler that redirects user to the login page
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// if user is not logged in.
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// Sample usage:
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// m.Get("/login-required", oauth2.LoginRequired, func() ... {})
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var LoginRequired martini.Handler = func() martini.Handler {
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return func(s sessions.Session, c martini.Context, w http.ResponseWriter, r *http.Request) {
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token := unmarshallToken(s)
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if token == nil || token.IsExpired() {
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next := url.QueryEscape(r.URL.RequestURI())
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http.Redirect(w, r, PathLogin+"?next="+next, codeRedirect)
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}
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}
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}()
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func login(t *oauth.Transport, s sessions.Session, w http.ResponseWriter, r *http.Request) {
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next := extractPath(r.URL.Query().Get(keyNextPage))
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if s.Get(keyToken) == nil {
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// User is not logged in.
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http.Redirect(w, r, t.Config.AuthCodeURL(next), codeRedirect)
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return
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}
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// No need to login, redirect to the next page.
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http.Redirect(w, r, next, codeRedirect)
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}
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func logout(t *oauth.Transport, s sessions.Session, w http.ResponseWriter, r *http.Request) {
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next := extractPath(r.URL.Query().Get(keyNextPage))
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s.Delete(keyToken)
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http.Redirect(w, r, next, codeRedirect)
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}
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func handleOAuth2Callback(t *oauth.Transport, s sessions.Session, w http.ResponseWriter, r *http.Request) {
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next := extractPath(r.URL.Query().Get("state"))
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code := r.URL.Query().Get("code")
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tk, err := t.Exchange(code)
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if err != nil {
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// Pass the error message, or allow dev to provide its own
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// error handler.
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http.Redirect(w, r, PathError, codeRedirect)
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return
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}
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// Store the credentials in the session.
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val, _ := json.Marshal(tk)
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s.Set(keyToken, val)
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http.Redirect(w, r, next, codeRedirect)
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}
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func unmarshallToken(s sessions.Session) (t *token) {
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if s.Get(keyToken) == nil {
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return
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}
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data := s.Get(keyToken).([]byte)
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var tk oauth.Token
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json.Unmarshal(data, &tk)
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return &token{tk}
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}
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func extractPath(next string) string {
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n, err := url.Parse(next)
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if err != nil {
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return "/"
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}
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return n.Path
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}
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162
modules/oauth2/oauth2_test.go
Normal file
162
modules/oauth2/oauth2_test.go
Normal file
@ -0,0 +1,162 @@
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// Copyright 2014 Google Inc. All Rights Reserved.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package oauth2
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import (
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"net/http"
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"net/http/httptest"
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"testing"
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"github.com/go-martini/martini"
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"github.com/martini-contrib/sessions"
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)
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func Test_LoginRedirect(t *testing.T) {
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recorder := httptest.NewRecorder()
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m := martini.New()
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m.Use(sessions.Sessions("my_session", sessions.NewCookieStore([]byte("secret123"))))
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m.Use(Google(&Options{
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ClientId: "client_id",
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ClientSecret: "client_secret",
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RedirectURL: "refresh_url",
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Scopes: []string{"x", "y"},
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}))
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r, _ := http.NewRequest("GET", "/login", nil)
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m.ServeHTTP(recorder, r)
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location := recorder.HeaderMap["Location"][0]
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if recorder.Code != 302 {
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t.Errorf("Not being redirected to the auth page.")
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}
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if location != "https://accounts.google.com/o/oauth2/auth?access_type=&approval_prompt=&client_id=client_id&redirect_uri=refresh_url&response_type=code&scope=x+y&state=" {
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t.Errorf("Not being redirected to the right page, %v found", location)
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}
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}
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func Test_LoginRedirectAfterLoginRequired(t *testing.T) {
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recorder := httptest.NewRecorder()
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m := martini.Classic()
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m.Use(sessions.Sessions("my_session", sessions.NewCookieStore([]byte("secret123"))))
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m.Use(Google(&Options{
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ClientId: "client_id",
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ClientSecret: "client_secret",
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RedirectURL: "refresh_url",
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Scopes: []string{"x", "y"},
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}))
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m.Get("/login-required", LoginRequired, func(tokens Tokens) (int, string) {
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return 200, tokens.Access()
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})
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r, _ := http.NewRequest("GET", "/login-required?key=value", nil)
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m.ServeHTTP(recorder, r)
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location := recorder.HeaderMap["Location"][0]
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if recorder.Code != 302 {
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t.Errorf("Not being redirected to the auth page.")
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}
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if location != "/login?next=%2Flogin-required%3Fkey%3Dvalue" {
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t.Errorf("Not being redirected to the right page, %v found", location)
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}
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}
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func Test_Logout(t *testing.T) {
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recorder := httptest.NewRecorder()
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s := sessions.NewCookieStore([]byte("secret123"))
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m := martini.Classic()
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m.Use(sessions.Sessions("my_session", s))
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m.Use(Google(&Options{
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// no need to configure
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}))
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m.Get("/", func(s sessions.Session) {
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s.Set(keyToken, "dummy token")
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})
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m.Get("/get", func(s sessions.Session) {
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if s.Get(keyToken) != nil {
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t.Errorf("User credentials are still kept in the session.")
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}
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})
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logout, _ := http.NewRequest("GET", "/logout", nil)
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index, _ := http.NewRequest("GET", "/", nil)
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m.ServeHTTP(httptest.NewRecorder(), index)
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m.ServeHTTP(recorder, logout)
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if recorder.Code != 302 {
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t.Errorf("Not being redirected to the next page.")
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}
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}
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func Test_LogoutOnAccessTokenExpiration(t *testing.T) {
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recorder := httptest.NewRecorder()
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s := sessions.NewCookieStore([]byte("secret123"))
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m := martini.Classic()
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m.Use(sessions.Sessions("my_session", s))
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m.Use(Google(&Options{
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// no need to configure
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}))
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m.Get("/addtoken", func(s sessions.Session) {
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s.Set(keyToken, "dummy token")
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})
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m.Get("/", func(s sessions.Session) {
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if s.Get(keyToken) != nil {
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t.Errorf("User not logged out although access token is expired.")
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}
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})
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addtoken, _ := http.NewRequest("GET", "/addtoken", nil)
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index, _ := http.NewRequest("GET", "/", nil)
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m.ServeHTTP(recorder, addtoken)
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m.ServeHTTP(recorder, index)
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}
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func Test_InjectedTokens(t *testing.T) {
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recorder := httptest.NewRecorder()
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m := martini.Classic()
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m.Use(sessions.Sessions("my_session", sessions.NewCookieStore([]byte("secret123"))))
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m.Use(Google(&Options{
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// no need to configure
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}))
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m.Get("/", func(tokens Tokens) string {
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return "Hello world!"
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})
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r, _ := http.NewRequest("GET", "/", nil)
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m.ServeHTTP(recorder, r)
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}
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func Test_LoginRequired(t *testing.T) {
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recorder := httptest.NewRecorder()
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m := martini.Classic()
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m.Use(sessions.Sessions("my_session", sessions.NewCookieStore([]byte("secret123"))))
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m.Use(Google(&Options{
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// no need to configure
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}))
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m.Get("/", LoginRequired, func(tokens Tokens) string {
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return "Hello world!"
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})
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r, _ := http.NewRequest("GET", "/", nil)
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m.ServeHTTP(recorder, r)
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if recorder.Code != 302 {
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t.Errorf("Not being redirected to the auth page although user is not logged in.")
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}
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}
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@ -8,7 +8,7 @@ import (
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"code.google.com/p/goauth2/oauth"
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"github.com/gogits/gogs/modules/log"
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"github.com/gogits/oauth2"
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"github.com/gogits/gogs/modules/oauth2"
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)
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// github && google && ...
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