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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* 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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if (!defined('GNUSOCIAL')) { exit(1); }
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set_include_path(get_include_path() . PATH_SEPARATOR . __DIR__ . '/extlib/');
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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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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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return parent::onAutoload($cls);
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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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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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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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return true;
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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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$all_ids = array_merge([$xrd->subject], $xrd->aliases);
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if (!in_array($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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return $all_ids;
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}
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}
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