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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   * Facebook OAuth service
  18   */
  19  class facebook 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_service_credentials()
  43      {
  44          return [
  45              'key'        => $this->config['auth_oauth_facebook_key'],
  46              'secret'    => $this->config['auth_oauth_facebook_secret'],
  47          ];
  48      }
  49  
  50      /**
  51       * {@inheritdoc}
  52       */
  53  	public function perform_auth_login()
  54      {
  55          if (!($this->service_provider instanceof \OAuth\OAuth2\Service\Facebook))
  56          {
  57              throw new exception('AUTH_PROVIDER_OAUTH_ERROR_INVALID_SERVICE_TYPE');
  58          }
  59  
  60          try
  61          {
  62              // This was a callback request, get the token
  63              $this->service_provider->requestAccessToken($this->request->variable('code', ''));
  64          }
  65          catch (\OAuth\Common\Http\Exception\TokenResponseException $e)
  66          {
  67              throw new exception('AUTH_PROVIDER_OAUTH_ERROR_REQUEST');
  68          }
  69  
  70          try
  71          {
  72              // Send a request with it
  73              $result = (array) json_decode($this->service_provider->request('/me'), true);
  74          }
  75          catch (\OAuth\Common\Exception\Exception $e)
  76          {
  77              throw new exception('AUTH_PROVIDER_OAUTH_ERROR_REQUEST');
  78          }
  79  
  80          // Return the unique identifier
  81          return $result['id'];
  82      }
  83  
  84      /**
  85       * {@inheritdoc}
  86       */
  87  	public function perform_token_auth()
  88      {
  89          if (!($this->service_provider instanceof \OAuth\OAuth2\Service\Facebook))
  90          {
  91              throw new exception('AUTH_PROVIDER_OAUTH_ERROR_INVALID_SERVICE_TYPE');
  92          }
  93  
  94          try
  95          {
  96              // Send a request with it
  97              $result = (array) json_decode($this->service_provider->request('/me'), true);
  98          }
  99          catch (\OAuth\Common\Exception\Exception $e)
 100          {
 101              throw new exception('AUTH_PROVIDER_OAUTH_ERROR_REQUEST');
 102          }
 103  
 104          // Return the unique identifier
 105          return $result['id'];
 106      }
 107  }