source: extensions/oAuth/main.inc.php @ 20461

<?php 
/*
Plugin Name: OAuth
Version: auto
Description: Provides various ways to sign in your gallery (Twitter, Facebook, Google, etc.)
Plugin URI: auto
Author: Mistic
Author URI: http://www.strangeplanet.fr
*/

defined('PHPWG_ROOT_PATH') or die('Hacking attempt!');

// +-----------------------------------------------------------------------+
// | Define plugin constants                                               |
// +-----------------------------------------------------------------------+
defined('OAUTH_ID') or define('OAUTH_ID', basename(dirname(__FILE__)));
define('OAUTH_PATH' ,   PHPWG_PLUGINS_PATH . OAUTH_ID . '/');
define('OAUTH_ADMIN',   get_root_url() . 'admin.php?page=plugin-' . OAUTH_ID);
define('OAUTH_CONFIG',  PWG_LOCAL_DIR . 'config/hybridauth.inc.php');
define('OAUTH_PUBLIC',  get_absolute_root_url() . ltrim(OAUTH_PATH,'./') . 'include/hybridauth/');
define('OAUTH_VERSION', 'auto');


// +-----------------------------------------------------------------------+
// | Event handlers                                                        |
// +-----------------------------------------------------------------------+
global $conf, $hybridauth_conf;

add_event_handler('init', 'oauth_init');

include_once(OAUTH_PATH . 'include/functions.inc.php');

// try to load hybridauth config
if (file_exists(PHPWG_ROOT_PATH.OAUTH_CONFIG))
{
  load_hybridauth_conf();
}

if (defined('IN_ADMIN'))
{
  add_event_handler('get_admin_plugin_menu_links', 'oauth_admin_plugin_menu_links');
  
  function oauth_admin_plugin_menu_links($menu) 
  {
    array_push($menu, array(
      'NAME' => l10n('OAuth'),
      'URL' => OAUTH_ADMIN,
    ));
    return $menu;
  }
}
else if (!empty($hybridauth_conf) and function_exists('curl_init'))
{
  add_event_handler('loc_begin_identification', 'oauth_begin_identification');
  add_event_handler('loc_begin_register', 'oauth_begin_register');
  add_event_handler('loc_begin_profile', 'oauth_begin_profile');
  
  add_event_handler('try_log_user', 'oauth_try_log_user', EVENT_HANDLER_PRIORITY_NEUTRAL-30, 2);
  add_event_handler('user_logout', 'oauth_logout');
  
  add_event_handler('blockmanager_apply', 'oauth_blockmanager');
  
  include_once(OAUTH_PATH . 'include/public_events.inc.php');
}


/**
 * plugin initialization
 */
function oauth_init()
{
  global $conf, $pwg_loaded_plugins, $page, $hybridauth_conf;
  
  // apply upgrade if needed
  if (
    OAUTH_VERSION == 'auto' or
    $pwg_loaded_plugins[OAUTH_ID]['version'] == 'auto' or
    version_compare($pwg_loaded_plugins[OAUTH_ID]['version'], OAUTH_VERSION, '<')
  )
  {
    include_once(OAUTH_PATH . 'include/install.inc.php');
    oauth_install();
    
    if ( $pwg_loaded_plugins[OAUTH_ID]['version'] != 'auto' and OAUTH_VERSION != 'auto' )
    {
      $query = '
UPDATE '. PLUGINS_TABLE .'
SET version = "'. OAUTH_VERSION .'"
WHERE id = "'. OAUTH_ID .'"';
      pwg_query($query);
      
      $pwg_loaded_plugins[OAUTH_ID]['version'] = OAUTH_VERSION;
      
      if (defined('IN_ADMIN'))
      {
        $_SESSION['page_infos'][] = 'OAuth updated to version '. OAUTH_VERSION;
      }
    }
  }
  
  load_language('plugin.lang', OAUTH_PATH);
  
  $conf['oauth'] = unserialize($conf['oauth']);
  
  // check config
  if (defined('IN_ADMIN'))
  {
    if ( empty($hybridauth_conf) and @$_GET['page'] != 'plugin-'.OAUTH_ID )
    {
      array_push($page['errors'], l10n('OAuth: You need to configure the credentials'));
    }
    if (!function_exists('curl_init'))
    {
      array_push($page['errors'], l10n('OAuth: PHP Curl extension is needed'));
    }
  }
  
  // in case of registration aborded
  if ( script_basename() != 'register' and ($data=pwg_get_session_var('oauth_new_user')) !== null )
  {
    pwg_unset_session_var('oauth_new_user');
    
    require_once(OAUTH_PATH . 'include/hybridauth/Hybrid/Auth.php');
    
    try {
      $hybridauth = new Hybrid_Auth($hybridauth_conf);
      $adapter = $hybridauth->getAdapter($data[0]);
      $adapter->logout();
    }
    catch (Exception $e) {
    }
  }
}

?>