458 lines
		
	
	
		
			14 KiB
		
	
	
	
		
			PHP
		
	
	
	
	
	
			
		
		
	
	
			458 lines
		
	
	
		
			14 KiB
		
	
	
	
		
			PHP
		
	
	
	
	
	
| <?php
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| /**
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|  * StatusNet, the distributed open-source microblogging tool
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|  *
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|  * PHP version 5
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|  *
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|  * LICENCE: This program is free software: you can redistribute it and/or modify
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|  * it under the terms of the GNU Affero General Public License as published by
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|  * the Free Software Foundation, either version 3 of the License, or
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|  * (at your option) any later version.
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|  *
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|  * This program is distributed in the hope that it will be useful,
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|  * but WITHOUT ANY WARRANTY; without even the implied warranty of
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|  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
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|  * GNU Affero General Public License for more details.
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|  *
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|  * You should have received a copy of the GNU Affero General Public License
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|  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
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|  *
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|  * @category  Plugin
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|  * @package   StatusNet
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|  * @author    Evan Prodromou <evan@status.net>
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|  * @copyright 2009 StatusNet, Inc.
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|  * @license   http://www.fsf.org/licensing/licenses/agpl-3.0.html GNU Affero General Public License version 3.0
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|  * @link      http://status.net/
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|  */
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| 
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| if (!defined('STATUSNET')) {
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|     exit(1);
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| }
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| 
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| /**
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|  * Plugin for OpenID authentication and identity
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|  *
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|  * This class enables consumer support for OpenID, the distributed authentication
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|  * and identity system.
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|  *
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|  * @category Plugin
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|  * @package  StatusNet
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|  * @author   Evan Prodromou <evan@status.net>
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|  * @license  http://www.fsf.org/licensing/licenses/agpl-3.0.html GNU Affero General Public License version 3.0
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|  * @link     http://status.net/
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|  * @link     http://openid.net/
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|  */
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| 
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| class OpenIDPlugin extends Plugin
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| {
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|     /**
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|      * Initializer for the plugin.
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|      */
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| 
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|     function __construct()
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|     {
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|         parent::__construct();
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|     }
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| 
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|     /**
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|      * Add OpenID-related paths to the router table
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|      *
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|      * Hook for RouterInitialized event.
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|      *
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|      * @param Net_URL_Mapper $m URL mapper
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|      *
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|      * @return boolean hook return
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|      */
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| 
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|     function onStartInitializeRouter($m)
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|     {
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|         $m->connect('main/openid', array('action' => 'openidlogin'));
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|         $m->connect('main/openidtrust', array('action' => 'openidtrust'));
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|         $m->connect('settings/openid', array('action' => 'openidsettings'));
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|         $m->connect('index.php?action=finishopenidlogin',
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|                     array('action' => 'finishopenidlogin'));
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|         $m->connect('index.php?action=finishaddopenid',
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|                     array('action' => 'finishaddopenid'));
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|         $m->connect('main/openidserver', array('action' => 'openidserver'));
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| 
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|         return true;
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|     }
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| 
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|     /**
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|      * Public XRDS output hook
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|      *
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|      * Puts the bits of code needed by some OpenID providers to show
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|      * we're good citizens.
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|      *
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|      * @param Action       $action         Action being executed
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|      * @param XMLOutputter &$xrdsOutputter Output channel
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|      *
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|      * @return boolean hook return
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|      */
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| 
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|     function onEndPublicXRDS($action, &$xrdsOutputter)
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|     {
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|         $xrdsOutputter->elementStart('XRD', array('xmlns' => 'xri://$xrd*($v*2.0)',
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|                                                   'xmlns:simple' => 'http://xrds-simple.net/core/1.0',
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|                                                   'version' => '2.0'));
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|         $xrdsOutputter->element('Type', null, 'xri://$xrds*simple');
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|         //consumer
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|         foreach (array('finishopenidlogin', 'finishaddopenid') as $finish) {
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|             $xrdsOutputter->showXrdsService(Auth_OpenID_RP_RETURN_TO_URL_TYPE,
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|                                             common_local_url($finish));
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|         }
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|         //provider
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|         $xrdsOutputter->showXrdsService('http://specs.openid.net/auth/2.0/server',
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|                                         common_local_url('openidserver'),
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|                                         null,
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|                                         null,
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|                                         'http://specs.openid.net/auth/2.0/identifier_select');
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|         $xrdsOutputter->elementEnd('XRD');
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|     }
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| 
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|     /**
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|      * User XRDS output hook
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|      *
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|      * Puts the bits of code needed to discover OpenID endpoints.
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|      *
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|      * @param Action       $action         Action being executed
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|      * @param XMLOutputter &$xrdsOutputter Output channel
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|      *
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|      * @return boolean hook return
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|      */
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| 
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|     function onEndUserXRDS($action, &$xrdsOutputter)
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|     {
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|         $xrdsOutputter->elementStart('XRD', array('xmlns' => 'xri://$xrd*($v*2.0)',
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|                                                   'xml:id' => 'openid',
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|                                                   'xmlns:simple' => 'http://xrds-simple.net/core/1.0',
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|                                                   'version' => '2.0'));
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|         $xrdsOutputter->element('Type', null, 'xri://$xrds*simple');
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| 
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|         //consumer
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|         $xrdsOutputter->showXrdsService('http://specs.openid.net/auth/2.0/return_to',
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|                                         common_local_url('finishopenidlogin'));
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| 
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|         //provider
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|         $xrdsOutputter->showXrdsService('http://specs.openid.net/auth/2.0/signon',
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|                                         common_local_url('openidserver'),
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|                                         null,
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|                                         null,
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|                                         common_profile_url($action->user->nickname));
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|         $xrdsOutputter->elementEnd('XRD');
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|     }
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| 
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|     /**
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|      * Menu item for login
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|      *
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|      * @param Action &$action Action being executed
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|      *
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|      * @return boolean hook return
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|      */
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| 
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|     function onEndLoginGroupNav(&$action)
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|     {
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|         $action_name = $action->trimmed('action');
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| 
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|         $action->menuItem(common_local_url('openidlogin'),
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|                           _m('OpenID'),
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|                           _m('Login or register with OpenID'),
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|                           $action_name === 'openidlogin');
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| 
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|         return true;
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|     }
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| 
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|     /**
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|      * Menu item for OpenID admin
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|      *
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|      * @param Action &$action Action being executed
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|      *
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|      * @return boolean hook return
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|      */
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| 
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|     function onEndAccountSettingsNav(&$action)
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|     {
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|         $action_name = $action->trimmed('action');
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| 
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|         $action->menuItem(common_local_url('openidsettings'),
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|                           _m('OpenID'),
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|                           _m('Add or remove OpenIDs'),
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|                           $action_name === 'openidsettings');
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| 
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|         return true;
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|     }
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| 
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|     /**
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|      * Autoloader
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|      *
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|      * Loads our classes if they're requested.
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|      *
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|      * @param string $cls Class requested
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|      *
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|      * @return boolean hook return
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|      */
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| 
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|     function onAutoload($cls)
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|     {
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|         switch ($cls)
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|         {
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|         case 'OpenidloginAction':
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|         case 'FinishopenidloginAction':
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|         case 'FinishaddopenidAction':
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|         case 'XrdsAction':
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|         case 'PublicxrdsAction':
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|         case 'OpenidsettingsAction':
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|         case 'OpenidserverAction':
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|         case 'OpenidtrustAction':
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|             require_once INSTALLDIR.'/plugins/OpenID/' . strtolower(mb_substr($cls, 0, -6)) . '.php';
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|             return false;
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|         case 'User_openid':
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|             require_once INSTALLDIR.'/plugins/OpenID/User_openid.php';
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|             return false;
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|         case 'User_openid_trustroot':
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|             require_once INSTALLDIR.'/plugins/OpenID/User_openid_trustroot.php';
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|             return false;
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|         default:
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|             return true;
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|         }
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|     }
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| 
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|     /**
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|      * Sensitive actions
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|      *
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|      * These actions should use https when SSL support is 'sometimes'
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|      *
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|      * @param Action  $action Action to form an URL for
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|      * @param boolean &$ssl   Whether to mark it for SSL
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|      *
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|      * @return boolean hook return
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|      */
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| 
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|     function onSensitiveAction($action, &$ssl)
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|     {
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|         switch ($action)
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|         {
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|         case 'finishopenidlogin':
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|         case 'finishaddopenid':
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|             $ssl = true;
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|             return false;
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|         default:
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|             return true;
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|         }
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|     }
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| 
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|     /**
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|      * Login actions
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|      *
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|      * These actions should be visible even when the site is marked private
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|      *
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|      * @param Action  $action Action to show
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|      * @param boolean &$login Whether it's a login action
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|      *
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|      * @return boolean hook return
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|      */
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| 
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|     function onLoginAction($action, &$login)
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|     {
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|         switch ($action)
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|         {
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|         case 'openidlogin':
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|         case 'finishopenidlogin':
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|         case 'openidserver':
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|             $login = true;
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|             return false;
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|         default:
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|             return true;
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|         }
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|     }
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| 
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|     /**
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|      * We include a <meta> element linking to the userxrds page, for OpenID
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|      * client-side authentication.
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|      *
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|      * @param Action $action Action being shown
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|      *
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|      * @return void
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|      */
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| 
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|     function onEndShowHeadElements($action)
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|     {
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|         if ($action instanceof ShowstreamAction) {
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|             $action->element('link', array('rel' => 'openid2.provider',
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|                                            'href' => common_local_url('openidserver')));
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|             $action->element('link', array('rel' => 'openid2.local_id',
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|                                            'href' => $action->profile->profileurl));
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|             $action->element('link', array('rel' => 'openid.server',
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|                                            'href' => common_local_url('openidserver')));
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|             $action->element('link', array('rel' => 'openid.delegate',
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|                                            'href' => $action->profile->profileurl));
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|         }
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|         return true;
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|     }
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| 
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|     /**
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|      * Redirect to OpenID login if they have an OpenID
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|      *
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|      * @param Action $action Action being executed
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|      * @param User   $user   User doing the action
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|      *
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|      * @return boolean whether to continue
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|      */
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| 
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|     function onRedirectToLogin($action, $user)
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|     {
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|         if (!empty($user) && User_openid::hasOpenID($user->id)) {
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|             common_redirect(common_local_url('openidlogin'), 303);
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|             return false;
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|         }
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|         return true;
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|     }
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| 
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|     /**
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|      * Show some extra instructions for using OpenID
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|      *
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|      * @param Action $action Action being executed
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|      *
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|      * @return boolean hook value
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|      */
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| 
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|     function onEndShowPageNotice($action)
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|     {
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|         $name = $action->trimmed('action');
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| 
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|         switch ($name)
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|         {
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|         case 'register':
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|             if (common_logged_in()) {
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|                 $instr = '(Have an [OpenID](http://openid.net/)? ' .
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|                   '[Add an OpenID to your account](%%action.openidsettings%%)!';
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|             } else {
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|                 $instr = '(Have an [OpenID](http://openid.net/)? ' .
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|                   'Try our [OpenID registration]'.
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|                   '(%%action.openidlogin%%)!)';
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|             }
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|             break;
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|         case 'login':
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|             $instr = '(Have an [OpenID](http://openid.net/)? ' .
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|               'Try our [OpenID login]'.
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|               '(%%action.openidlogin%%)!)';
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|             break;
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|         default:
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|             return true;
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|         }
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| 
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|         $output = common_markup_to_html($instr);
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|         $action->raw($output);
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|         return true;
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|     }
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| 
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|     /**
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|      * Load our document if requested
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|      *
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|      * @param string &$title  Title to fetch
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|      * @param string &$output HTML to output
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|      *
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|      * @return boolean hook value
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|      */
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| 
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|     function onStartLoadDoc(&$title, &$output)
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|     {
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|         if ($title == 'openid') {
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|             $filename = INSTALLDIR.'/plugins/OpenID/doc-src/openid';
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| 
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|             $c      = file_get_contents($filename);
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|             $output = common_markup_to_html($c);
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|             return false; // success!
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|         }
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| 
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|         return true;
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|     }
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| 
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|     /**
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|      * Add our document to the global menu
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|      *
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|      * @param string $title   Title being fetched
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|      * @param string &$output HTML being output
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|      *
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|      * @return boolean hook value
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|      */
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| 
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|     function onEndLoadDoc($title, &$output)
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|     {
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|         if ($title == 'help') {
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|             $menuitem = '* [OpenID](%%doc.openid%%) - what OpenID is and how to use it with this service';
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| 
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|             $output .= common_markup_to_html($menuitem);
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|         }
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| 
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|         return true;
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|     }
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| 
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|     /**
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|      * Data definitions
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|      *
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|      * Assure that our data objects are available in the DB
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|      *
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|      * @return boolean hook value
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|      */
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| 
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|     function onCheckSchema()
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|     {
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|         $schema = Schema::get();
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|         $schema->ensureTable('user_openid',
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|                              array(new ColumnDef('canonical', 'varchar',
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|                                                  '255', false, 'PRI'),
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|                                    new ColumnDef('display', 'varchar',
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|                                                  '255', false, 'UNI'),
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|                                    new ColumnDef('user_id', 'integer',
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|                                                  null, false, 'MUL'),
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|                                    new ColumnDef('created', 'datetime',
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|                                                  null, false),
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|                                    new ColumnDef('modified', 'timestamp')));
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|         $schema->ensureTable('user_openid_trustroot',
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|                              array(new ColumnDef('trustroot', 'varchar',
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|                                                  '255', false, 'PRI'),
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|                                    new ColumnDef('user_id', 'integer',
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|                                                  null, false, 'PRI'),
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|                                    new ColumnDef('created', 'datetime',
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|                                                  null, false),
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|                                    new ColumnDef('modified', 'timestamp')));
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|         return true;
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|     }
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| 
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|     /**
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|      * Add our tables to be deleted when a user is deleted
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|      *
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|      * @param User  $user    User being deleted
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|      * @param array &$tables Array of table names
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|      *
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|      * @return boolean hook value
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|      */
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| 
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|     function onUserDeleteRelated($user, &$tables)
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|     {
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|         $tables[] = 'User_openid';
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|         $tables[] = 'User_openid_trustroot';
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|         return true;
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|     }
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| 
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|     /**
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|      * Add our version information to output
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|      *
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|      * @param array &$versions Array of version-data arrays
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|      *
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|      * @return boolean hook value
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|      */
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| 
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|     function onPluginVersion(&$versions)
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|     {
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|         $versions[] = array('name' => 'OpenID',
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|                             'version' => STATUSNET_VERSION,
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|                             'author' => 'Evan Prodromou, Craig Andrews',
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|                             'homepage' => 'http://status.net/wiki/Plugin:OpenID',
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|                             'rawdescription' =>
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|                             _m('Use <a href="http://openid.net/">OpenID</a> to login to the site.'));
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|         return true;
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|     }
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| }
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