1<?php
2
3/*
4 * Copyright 2008 Google Inc.
5 *
6 * Licensed under the Apache License, Version 2.0 (the "License");
7 * you may not use this file except in compliance with the License.
8 * You may obtain a copy of the License at
9 *
10 *     http://www.apache.org/licenses/LICENSE-2.0
11 *
12 * Unless required by applicable law or agreed to in writing, software
13 * distributed under the License is distributed on an "AS IS" BASIS,
14 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
15 * See the License for the specific language governing permissions and
16 * limitations under the License.
17 */
18
19namespace Google\AccessToken;
20
21use Google\Auth\HttpHandler\HttpHandlerFactory;
22use Google\Client;
23use GuzzleHttp\ClientInterface;
24use GuzzleHttp\Psr7;
25use GuzzleHttp\Psr7\Request;
26
27/**
28 * Wrapper around Google Access Tokens which provides convenience functions
29 *
30 */
31class Revoke
32{
33  /**
34   * @var ClientInterface The http client
35   */
36  private $http;
37
38  /**
39   * Instantiates the class, but does not initiate the login flow, leaving it
40   * to the discretion of the caller.
41   */
42  public function __construct(ClientInterface $http = null)
43  {
44    $this->http = $http;
45  }
46
47  /**
48   * Revoke an OAuth2 access token or refresh token. This method will revoke the current access
49   * token, if a token isn't provided.
50   *
51   * @param string|array $token The token (access token or a refresh token) that should be revoked.
52   * @return boolean Returns True if the revocation was successful, otherwise False.
53   */
54  public function revokeToken($token)
55  {
56    if (is_array($token)) {
57      if (isset($token['refresh_token'])) {
58        $token = $token['refresh_token'];
59      } else {
60        $token = $token['access_token'];
61      }
62    }
63
64    $body = Psr7\Utils::streamFor(http_build_query(array('token' => $token)));
65    $request = new Request(
66        'POST',
67        Client::OAUTH2_REVOKE_URI,
68        [
69          'Cache-Control' => 'no-store',
70          'Content-Type'  => 'application/x-www-form-urlencoded',
71        ],
72        $body
73    );
74
75    $httpHandler = HttpHandlerFactory::build($this->http);
76
77    $response = $httpHandler($request);
78
79    return $response->getStatusCode() == 200;
80  }
81}
82