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   1  <?php
   2  /**
   3   *
   4   * This file is part of the phpBB Forum Software package.
   5   *
   6   * @copyright (c) phpBB Limited <https://www.phpbb.com>
   7   * @license GNU General Public License, version 2 (GPL-2.0)
   8   *
   9   * For full copyright and license information, please see
  10   * the docs/CREDITS.txt file.
  11   *
  12   */
  13  
  14  namespace phpbb\auth\provider\oauth\service;
  15  
  16  /**
  17   * Google OAuth service
  18   */
  19  class google extends base
  20  {
  21      /** @var \phpbb\config\config */
  22      protected $config;
  23  
  24      /** @var \phpbb\request\request_interface */
  25      protected $request;
  26  
  27      /**
  28       * Constructor.
  29       *
  30       * @param \phpbb\config\config                $config        Config object
  31       * @param \phpbb\request\request_interface    $request    Request object
  32       */
  33  	public function __construct(\phpbb\config\config $config, \phpbb\request\request_interface $request)
  34      {
  35          $this->config    = $config;
  36          $this->request    = $request;
  37      }
  38  
  39      /**
  40       * {@inheritdoc}
  41       */
  42  	public function get_auth_scope()
  43      {
  44          return [
  45              'userinfo_email',
  46              'userinfo_profile',
  47          ];
  48      }
  49  
  50      /**
  51       * {@inheritdoc}
  52       */
  53  	public function get_service_credentials()
  54      {
  55          return [
  56              'key'        => $this->config['auth_oauth_google_key'],
  57              'secret'    => $this->config['auth_oauth_google_secret'],
  58          ];
  59      }
  60  
  61      /**
  62       * {@inheritdoc}
  63       */
  64  	public function perform_auth_login()
  65      {
  66          if (!($this->service_provider instanceof \OAuth\OAuth2\Service\Google))
  67          {
  68              throw new exception('AUTH_PROVIDER_OAUTH_ERROR_INVALID_SERVICE_TYPE');
  69          }
  70  
  71          try
  72          {
  73              // This was a callback request, get the token
  74              $this->service_provider->requestAccessToken($this->request->variable('code', ''));
  75          }
  76          catch (\OAuth\Common\Http\Exception\TokenResponseException $e)
  77          {
  78              throw new exception('AUTH_PROVIDER_OAUTH_ERROR_REQUEST');
  79          }
  80  
  81          try
  82          {
  83              // Send a request with it
  84              $result = (array) json_decode($this->service_provider->request('https://www.googleapis.com/oauth2/v1/userinfo'), true);
  85          }
  86          catch (\OAuth\Common\Exception\Exception $e)
  87          {
  88              throw new exception('AUTH_PROVIDER_OAUTH_ERROR_REQUEST');
  89          }
  90  
  91          // Return the unique identifier
  92          return $result['id'];
  93      }
  94  
  95      /**
  96       * {@inheritdoc}
  97       */
  98  	public function perform_token_auth()
  99      {
 100          if (!($this->service_provider instanceof \OAuth\OAuth2\Service\Google))
 101          {
 102              throw new exception('AUTH_PROVIDER_OAUTH_ERROR_INVALID_SERVICE_TYPE');
 103          }
 104  
 105          try
 106          {
 107              // Send a request with it
 108              $result = (array) json_decode($this->service_provider->request('https://www.googleapis.com/oauth2/v1/userinfo'), true);
 109          }
 110          catch (\OAuth\Common\Exception\Exception $e)
 111          {
 112              throw new exception('AUTH_PROVIDER_OAUTH_ERROR_REQUEST');
 113          }
 114  
 115          // Return the unique identifier
 116          return $result['id'];
 117      }
 118  }