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gnu-social-v2-archive-activ.../ActivityPubPlugin.php

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<?php
/**
* GNU social - a federating social network
*
* Plugin that handles ActivityPub
*
* PHP version 5
*
* LICENCE: This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*
* @category Plugin
* @package GNUsocial
* @author Daniel Supernault <danielsupernault@gmail.com>
* @author Diogo Cordeiro <diogo@fc.up.pt>
* @copyright 2014 Free Software Foundation http://fsf.org
* @license http://www.fsf.org/licensing/licenses/agpl-3.0.html GNU Affero General Public License version 3.0
* @link https://www.gnu.org/software/social/
*/
if (!defined('GNUSOCIAL')) { exit(1); }
class ActivityPubPlugin extends Plugin
{
public function onRouterInitialized(URLMapper $m)
{
ActivityPubURLMapperOverwrite::overwrite_variable($m, ':nickname',
['action' => 'showstream'],
['nickname' => Nickname::DISPLAY_FMT],
'apactorprofile');
$m->connect(':nickname/liked.json',
['action' => 'apActorLikedCollection'],
['nickname' => Nickname::DISPLAY_FMT]);
$m->connect(':nickname/followers.json',
['action' => 'apActorFollowers'],
['nickname' => Nickname::DISPLAY_FMT]);
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$m->connect(':nickname/following.json',
['action' => 'apActorFollowing'],
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['nickname' => Nickname::DISPLAY_FMT]);
}
public function onPluginVersion(array &$versions)
{
$versions[] = [ 'name' => 'ActivityPub',
'version' => GNUSOCIAL_VERSION,
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'author' => 'Daniel Supernault, Diogo Cordeiro',
'homepage' => 'https://www.gnu.org/software/social/',
'rawdescription' =>
// Todo: Translation
'Adds ActivityPub Support'];
return true;
}
}
/**
* Overwrites variables in URL-mapping
*
*/
class ActivityPubURLMapperOverwrite extends URLMapper
{
static function overwrite_variable($m, $path, $args, $paramPatterns, $newaction)
{
$mimes = [
'application/activity+json',
'application/ld+json',
'application/ld+json; profile="https://www.w3.org/ns/activitystreams"'
];
if (in_array ($_SERVER["HTTP_ACCEPT"], $mimes) == false) {
return true;
}
$m->connect($path, array('action' => $newaction), $paramPatterns);
$regex = self::makeRegex($path, $paramPatterns);
foreach ($m->variables as $n => $v) {
if ($v[1] == $regex) {
$m->variables[$n][0]['action'] = $newaction;
}
}
}
}
class ActivityPubReturn
{
static function answer ($res)
{
header('Content-Type: application/activity+json');
echo json_encode($res, JSON_UNESCAPED_SLASHES | (isset($_GET["pretty"]) ? JSON_PRETTY_PRINT : null));
exit;
}
static function error ($m, $code=500)
{
http_response_code ($code);
header('Content-Type: application/activity+json');
$res[] = Activitypub_error::errorMessageToObject($m);
echo json_encode($res, JSON_UNESCAPED_SLASHES);
exit;
}
}