forked from GNUsocial/gnu-social
		
	
		
			
				
	
	
		
			92 lines
		
	
	
		
			2.9 KiB
		
	
	
	
		
			PHP
		
	
	
	
	
	
			
		
		
	
	
			92 lines
		
	
	
		
			2.9 KiB
		
	
	
	
		
			PHP
		
	
	
	
	
	
| <?php
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| /*
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|  * GNU Social - a federating social network
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|  * Copyright (C) 2013, Free Software Foundation, Inc.
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|  *
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|  * 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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| 
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| /**
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|  * Implements Link-based Resource Descriptor Discovery based on RFC6415,
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|  * Web Host Metadata, i.e. the predecessor to WebFinger resource discovery.
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|  *
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|  * @package GNUsocial
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|  * @author  Mikael Nordfeldth <mmn@hethane.se>
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|  */
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| 
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| if (!defined('GNUSOCIAL')) { exit(1); }
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| 
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| set_include_path(get_include_path() . PATH_SEPARATOR . __DIR__ . '/extlib/');
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| 
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| class LRDDPlugin extends Plugin
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| {
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|     const PLUGIN_VERSION = '2.0.0';
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| 
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|     public function onAutoload($cls)
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|     {
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|         switch ($cls) {
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|         case 'XML_XRD':
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|             require_once __DIR__ . '/extlib/XML/XRD.php';
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|             return false;
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|         }
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| 
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|         return parent::onAutoload($cls);
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|     }
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| 
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|     public function onStartDiscoveryMethodRegistration(Discovery $disco) {
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|         $disco->registerMethod('LRDDMethod_WebFinger');
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|     }
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| 
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|     public function onEndDiscoveryMethodRegistration(Discovery $disco) {
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|         $disco->registerMethod('LRDDMethod_HostMeta');
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|         $disco->registerMethod('LRDDMethod_LinkHeader');
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|         $disco->registerMethod('LRDDMethod_LinkHTML');
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|     }
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| 
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|     public function onPluginVersion(array &$versions): bool
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|     {
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|         $versions[] = array('name' => 'LRDD',
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|                             'version' => self::PLUGIN_VERSION,
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|                             'author' => 'Mikael Nordfeldth',
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|                             'homepage' => GNUSOCIAL_ENGINE_URL,
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|                             // TRANS: Plugin description.
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|                             'rawdescription' => _m('Implements LRDD support for GNU Social.'));
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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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|      * Fetch all the aliases of some remote profile
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|      *
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|      * @param string $uri profile's URI
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|      * @return array|null aliases
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|      * @throws Exception (If the Discovery's HTTP requests fail)
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|      * @author Bruno Casteleiro <brunoccast@fc.up.pt>
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|      */
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|     public static function grab_profile_aliases(string $uri): ?array
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|     {
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|         $disco = new Discovery();
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|         $xrd = $disco->lookup($uri);
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| 
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|         $all_ids = array_merge([$xrd->subject], $xrd->aliases);
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| 
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|         if (!in_array($uri, $all_ids)) {
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|             $this->log(LOG_INFO, 'The original URI was not listed itself when doing discovery on it!');
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|             return null;
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|         }
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| 
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|         return $all_ids;
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|     }
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| }
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