151 lines
5.4 KiB
PHP
151 lines
5.4 KiB
PHP
<?php
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/**
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* GNU social - a federating social network
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*
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* ActivityPubPlugin implementation for GNU Social
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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 GNUsocial
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* @author Daniel Supernault <danielsupernault@gmail.com>
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* @author Diogo Cordeiro <diogo@fc.up.pt>
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* @copyright 2018 Free Software Foundation http://fsf.org
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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 https://www.gnu.org/software/social/
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*/
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if (!defined ('GNUSOCIAL')) {
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exit(1);
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}
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/**
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* @category Plugin
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* @package GNUsocial
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* @author Daniel Supernault <danielsupernault@gmail.com>
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* @author Diogo Cordeiro <diogo@fc.up.pt>
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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://www.gnu.org/software/social/
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*/
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class ActivityPubPlugin extends Plugin
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{
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/**
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* Route/Reroute urls
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*
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* @param URLMapper $m
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* @return void
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*/
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public function onRouterInitialized(URLMapper $m) {
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ActivityPubURLMapperOverwrite::overwrite_variable ($m, ':nickname',
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['action' => 'showstream'],
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['nickname' => Nickname::DISPLAY_FMT],
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'apactorprofile');
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$m->connect (':nickname/liked.json',
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['action' => 'apActorLikedCollection'],
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['nickname' => Nickname::DISPLAY_FMT]);
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$m->connect (':nickname/followers.json',
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['action' => 'apActorFollowers'],
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['nickname' => Nickname::DISPLAY_FMT]);
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$m->connect (':nickname/following.json',
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['action' => 'apActorFollowing'],
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['nickname' => Nickname::DISPLAY_FMT]);
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$m->connect (':nickname/inbox.json',
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['action' => 'apActorInbox'],
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['nickname' => Nickname::DISPLAY_FMT]);
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$m->connect ('inbox.json',
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array('action' => 'apSharedInbox'));
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}
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/**
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* Plugin version information
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*
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* @param array $versions
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* @return boolean true
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*/
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public function onPluginVersion (array & $versions) {
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$versions[] = [ 'name' => 'ActivityPub',
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'version' => GNUSOCIAL_VERSION,
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'author' => 'Daniel Supernault, Diogo Cordeiro',
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'homepage' => 'https://www.gnu.org/software/social/',
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'rawdescription' =>
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// Todo: Translation
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'Adds ActivityPub Support'];
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return true;
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}
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}
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/**
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* Overwrites variables in URL-mapping
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*/
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class ActivityPubURLMapperOverwrite extends URLMapper
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{
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static function overwrite_variable ($m, $path, $args, $paramPatterns, $newaction) {
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$mimes = [
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'application/activity+json',
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'application/ld+json',
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'application/ld+json; profile="https://www.w3.org/ns/activitystreams"'
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];
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if (in_array ($_SERVER["HTTP_ACCEPT"], $mimes) == false) {
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return true;
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}
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$m->connect ($path, array('action' => $newaction), $paramPatterns);
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$regex = self::makeRegex($path, $paramPatterns);
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foreach ($m->variables as $n => $v) {
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if ($v[1] == $regex) {
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$m->variables[$n][0]['action'] = $newaction;
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}
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}
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}
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}
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/**
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* Plugin return handler
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*/
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class ActivityPubReturn
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{
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/**
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* Return a valid answer
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*
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* @param array $res
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* @return void
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*/
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static function answer ($res) {
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header ('Content-Type: application/activity+json');
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echo json_encode ($res, JSON_UNESCAPED_SLASHES | (isset ($_GET["pretty"]) ? JSON_PRETTY_PRINT : null));
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exit;
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}
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/**
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* Return an error
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*
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* @param string $m
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* @param int32 $code
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* @return void
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*/
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static function error ($m, $code = 500) {
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http_response_code ($code);
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header ('Content-Type: application/activity+json');
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$res[] = Activitypub_error::errorMessageToObject ($m);
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echo json_encode ($res, JSON_UNESCAPED_SLASHES);
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exit;
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}
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}
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