1027 lines
35 KiB
PHP
Executable File
1027 lines
35 KiB
PHP
Executable File
<?php
|
||
/**
|
||
* GNU social - a federating social network
|
||
*
|
||
* ActivityPubPlugin implementation for GNU Social
|
||
*
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||
* 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
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||
* @author Diogo Cordeiro <diogo@fc.up.pt>
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||
* @author Daniel Supernault <danielsupernault@gmail.com>
|
||
* @copyright 2018 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
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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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|
||
// Ensure proper timezone
|
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date_default_timezone_set('UTC');
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// Import required files by the plugin
|
||
require __DIR__.'/vendor/autoload.php';
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require_once __DIR__ . DIRECTORY_SEPARATOR . "utils" . DIRECTORY_SEPARATOR . "discoveryhints.php";
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require_once __DIR__ . DIRECTORY_SEPARATOR . "utils" . DIRECTORY_SEPARATOR . "explorer.php";
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require_once __DIR__ . DIRECTORY_SEPARATOR . "utils" . DIRECTORY_SEPARATOR . "postman.php";
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|
||
// So that this isn't hardcoded everywhere
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||
define('ACTIVITYPUB_BASE_INSTANCE_URI', common_root_url().'index.php/user/');
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const ACTIVITYPUB_PUBLIC_TO = ['https://www.w3.org/ns/activitystreams#Public',
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'Public',
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'as:Public'
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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 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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* Returns a Actor's URI from its local $profile
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* Works both for local and remote users.
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*
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* @author Diogo Cordeiro <diogo@fc.up.pt>
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* @param Profile $profile Actor's local profile
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||
* @return string Actor's URI
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||
*/
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||
public static function actor_uri($profile)
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{
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if ($profile->isLocal()) {
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return ACTIVITYPUB_BASE_INSTANCE_URI.$profile->getID();
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} else {
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return $profile->getUri();
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}
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}
|
||
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/**
|
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* Returns a Actor's URL from its local $profile
|
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* Works both for local and remote users.
|
||
*
|
||
* @author Diogo Cordeiro <diogo@fc.up.pt>
|
||
* @param Profile $profile Actor's local profile
|
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* @return string Actor's URL
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*/
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public static function actor_url($profile)
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{
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return ActivityPubPlugin::actor_uri($profile)."/";
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}
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/**
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* Returns a notice from its URL.
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*
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||
* @author Diogo Cordeiro <diogo@fc.up.pt>
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||
* @param string $url Notice's URL
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* @return Notice The Notice object
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* @throws Exception This function or provides a Notice or fails with exception
|
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*/
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||
public static function grab_notice_from_url($url)
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||
{
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||
/* Offline Grabbing */
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||
try {
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// Look for a know remote notice
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return Notice::getByUri($url);
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||
} catch (Exception $e) {
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||
// Look for a local notice (unfortunately GNU Social doesn't
|
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// provide this functionality)
|
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try {
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$candidate = Notice::getByID(intval(substr($url, strlen(common_local_url('shownotice', ['notice' => ''])))));
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if ($candidate->getUrl() == $url) { // Sanity check
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return $candidate;
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} else {
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common_debug('ActivityPubPlugin Notice Grabber: '.$candidate->getUrl(). ' is different of '.$url);
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}
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} catch (Exception $e) {
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common_debug('ActivityPubPlugin Notice Grabber failed to find: '.$url. 'offline.');
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}
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}
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/* Online Grabbing */
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$client = new HTTPClient();
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$headers = [];
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$headers[] = 'Accept: application/ld+json; profile="https://www.w3.org/ns/activitystreams"';
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$headers[] = 'User-Agent: GNUSocialBot v0.1 - https://gnu.io/social';
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$response = $client->get($url, $headers);
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$res = json_decode($response->getBody(), JSON_UNESCAPED_SLASHES);
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$settings = [];
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try {
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Activitypub_notice::validate_remote_notice($res);
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} catch (Exception $e) {
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common_debug('ActivityPub Explorer: Invalid potential remote notice while processing id: '.$url. '. He returned the following: '.json_encode($res, JSON_UNESCAPED_SLASHES));
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throw $e;
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}
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if (isset($res->inReplyTo)) {
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$settings['inReplyTo'] = $res->inReplyTo;
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||
}
|
||
if (isset($res->latitude)) {
|
||
$settings['latitude'] = $res->latitude;
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||
}
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||
if (isset($res->longitude)) {
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||
$settings['longitude'] = $res->longitude;
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}
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||
try {
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return Activitypub_notice::create_notice(
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ActivityPub_explorer::get_profile_from_url($res->attributedTo),
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$res->id,
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$res->url,
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$res->content,
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$res->cc,
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$settings
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||
);
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||
} catch (Exception $e) {
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common_debug('ActivityPubPlugin Notice Grabber failed to find: '.$url. 'online.');
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throw $e;
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||
}
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// When all the above failed in its quest of grabbing the Notice
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throw new Exception('Notice not found.');
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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 $m)
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||
{
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||
ActivityPubURLMapperOverwrite::variable(
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$m,
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'user/:id',
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['id' => '[0-9]+'],
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'apActorProfile'
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);
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||
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// Special route for webfinger purposes
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||
ActivityPubURLMapperOverwrite::variable(
|
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$m,
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':nickname',
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['nickname' => Nickname::DISPLAY_FMT],
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||
'apActorProfile'
|
||
);
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||
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||
ActivityPubURLMapperOverwrite::variable(
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$m,
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||
'notice/:id',
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['id' => '[0-9]+'],
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'apNotice'
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);
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$m->connect(
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'user/:id/liked.json',
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['action' => 'apActorLiked'],
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['id' => '[0-9]+']
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);
|
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$m->connect(
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'user/:id/followers.json',
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['action' => 'apActorFollowers'],
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['id' => '[0-9]+']
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);
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$m->connect(
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'user/:id/following.json',
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['action' => 'apActorFollowing'],
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['id' => '[0-9]+']
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);
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|
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$m->connect(
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'user/:id/inbox.json',
|
||
['action' => 'apActorInbox'],
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||
['id' => '[0-9]+']
|
||
);
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||
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||
$m->connect(
|
||
'inbox.json',
|
||
['action' => 'apSharedInbox']
|
||
);
|
||
}
|
||
|
||
/**
|
||
* Plugin version information
|
||
*
|
||
* @param array $versions
|
||
* @return boolean hook true
|
||
*/
|
||
public function onPluginVersion(array &$versions)
|
||
{
|
||
$versions[] = [ 'name' => 'ActivityPub',
|
||
'version' => GNUSOCIAL_VERSION,
|
||
'author' => 'Diogo Cordeiro, Daniel Supernault',
|
||
'homepage' => 'https://www.gnu.org/software/social/',
|
||
'rawdescription' => 'Adds ActivityPub Support'];
|
||
|
||
return true;
|
||
}
|
||
|
||
/**
|
||
* Dummy string on AccountProfileBlock stating that ActivityPub is active
|
||
* this is more of a placeholder for eventual useful stuff ._.
|
||
*
|
||
* @author Diogo Cordeiro <diogo@fc.up.pt>
|
||
* @return boolean hook return value
|
||
*/
|
||
public function onEndShowAccountProfileBlock(HTMLOutputter $out, Profile $profile)
|
||
{
|
||
if ($profile->isLocal()) {
|
||
return true;
|
||
}
|
||
try {
|
||
$aprofile = Activitypub_profile::getKV('profile_id', $profile->id);
|
||
} catch (NoResultException $e) {
|
||
// Not a remote ActivityPub_profile! Maybe some other network
|
||
// that has imported a non-local user (e.g.: OStatus)?
|
||
return true;
|
||
}
|
||
|
||
$out->elementStart('dl', 'entity_tags activitypub_profile');
|
||
$out->element('dt', null, _m('ActivityPub'));
|
||
$out->element('dd', null, _m('Active'));
|
||
$out->elementEnd('dl');
|
||
}
|
||
|
||
/**
|
||
* Make sure necessary tables are filled out.
|
||
*
|
||
* @return boolean hook true
|
||
*/
|
||
public function onCheckSchema()
|
||
{
|
||
$schema = Schema::get();
|
||
$schema->ensureTable('Activitypub_profile', Activitypub_profile::schemaDef());
|
||
$schema->ensureTable('Activitypub_rsa', Activitypub_rsa::schemaDef());
|
||
$schema->ensureTable('Activitypub_pending_follow_requests', Activitypub_pending_follow_requests::schemaDef());
|
||
return true;
|
||
}
|
||
|
||
/********************************************************
|
||
* WebFinger Events *
|
||
********************************************************/
|
||
|
||
/**
|
||
* Get remote user's ActivityPub_profile via a identifier
|
||
*
|
||
* @author GNU Social
|
||
* @author Diogo Cordeiro <diogo@fc.up.pt>
|
||
* @param string $arg A remote user identifier
|
||
* @return Activitypub_profile|null Valid profile in success | null otherwise
|
||
*/
|
||
public static function pull_remote_profile($arg)
|
||
{
|
||
if (preg_match('!^((?:\w+\.)*\w+@(?:\w+\.)*\w+(?:\w+\-\w+)*\.\w+)$!', $arg)) {
|
||
// webfinger lookup
|
||
try {
|
||
return Activitypub_profile::ensure_web_finger($arg);
|
||
} catch (Exception $e) {
|
||
common_log(LOG_ERR, 'Webfinger lookup failed for ' .
|
||
$arg . ': ' . $e->getMessage());
|
||
}
|
||
}
|
||
|
||
// Look for profile URLs, with or without scheme:
|
||
$urls = array();
|
||
if (preg_match('!^https?://((?:\w+\.)*\w+(?:\w+\-\w+)*\.\w+(?:/\w+)+)$!', $arg)) {
|
||
$urls[] = $arg;
|
||
}
|
||
if (preg_match('!^((?:\w+\.)*\w+(?:\w+\-\w+)*\.\w+(?:/\w+)+)$!', $arg)) {
|
||
$schemes = array('http', 'https');
|
||
foreach ($schemes as $scheme) {
|
||
$urls[] = "$scheme://$arg";
|
||
}
|
||
}
|
||
|
||
foreach ($urls as $url) {
|
||
try {
|
||
return Activitypub_profile::fromUri($url);
|
||
} catch (Exception $e) {
|
||
common_log(LOG_ERR, 'Profile lookup failed for ' .
|
||
$arg . ': ' . $e->getMessage());
|
||
}
|
||
}
|
||
return null;
|
||
}
|
||
|
||
/**
|
||
* Webfinger matches: @user@example.com or even @user--one.george_orwell@1984.biz
|
||
*
|
||
* @author GNU Social
|
||
* @param string $text The text from which to extract webfinger IDs
|
||
* @param string $preMention Character(s) that signals a mention ('@', '!'...)
|
||
* @return array The matching IDs (without $preMention) and each respective position in the given string.
|
||
*/
|
||
public static function extractWebfingerIds($text, $preMention='@')
|
||
{
|
||
$wmatches = [];
|
||
$result = preg_match_all(
|
||
'/(?<!\S)'.preg_quote($preMention, '/').'('.Nickname::WEBFINGER_FMT.')/',
|
||
$text,
|
||
$wmatches,
|
||
PREG_OFFSET_CAPTURE
|
||
);
|
||
if ($result === false) {
|
||
common_log(LOG_ERR, __METHOD__ . ': Error parsing webfinger IDs from text (preg_last_error=='.preg_last_error().').');
|
||
return [];
|
||
} elseif ($n_matches = count($wmatches)) {
|
||
common_debug(sprintf('Found %d matches for WebFinger IDs: %s', $n_matches, _ve($wmatches)));
|
||
}
|
||
return $wmatches[1];
|
||
}
|
||
|
||
/**
|
||
* Profile URL matches: @example.com/mublog/user
|
||
*
|
||
* @author GNU Social
|
||
* @param string $text The text from which to extract URL mentions
|
||
* @param string $preMention Character(s) that signals a mention ('@', '!'...)
|
||
* @return array The matching URLs (without @ or acct:) and each respective position in the given string.
|
||
*/
|
||
public static function extractUrlMentions($text, $preMention='@')
|
||
{
|
||
$wmatches = array();
|
||
// In the regexp below we need to match / _before_ URL_REGEX_VALID_PATH_CHARS because it otherwise gets merged
|
||
// with the TLD before (but / is in URL_REGEX_VALID_PATH_CHARS anyway, it's just its positioning that is important)
|
||
$result = preg_match_all(
|
||
'/(?:^|\s+)'.preg_quote($preMention, '/').'('.URL_REGEX_DOMAIN_NAME.'(?:\/['.URL_REGEX_VALID_PATH_CHARS.']*)*)/',
|
||
$text,
|
||
$wmatches,
|
||
PREG_OFFSET_CAPTURE
|
||
);
|
||
if ($result === false) {
|
||
common_log(LOG_ERR, __METHOD__ . ': Error parsing profile URL mentions from text (preg_last_error=='.preg_last_error().').');
|
||
} elseif (count($wmatches)) {
|
||
common_debug(sprintf('Found %d matches for profile URL mentions: %s', count($wmatches), _ve($wmatches)));
|
||
}
|
||
return $wmatches[1];
|
||
}
|
||
|
||
/**
|
||
* Add activity+json mimetype on WebFinger
|
||
*
|
||
* @author Diogo Cordeiro <diogo@fc.up.pt>
|
||
* @param XML_XRD $xrd
|
||
* @param Managed_DataObject $object
|
||
*/
|
||
public function onEndWebFingerProfileLinks(XML_XRD &$xrd, Managed_DataObject $object)
|
||
{
|
||
if ($object->isPerson()) {
|
||
$link = new XML_XRD_Element_Link(
|
||
'self',
|
||
ActivityPubPlugin::actor_uri($object->getProfile()),
|
||
'application/activity+json'
|
||
);
|
||
$xrd->links[] = clone ($link);
|
||
}
|
||
}
|
||
|
||
/**
|
||
* Find any explicit remote mentions. Accepted forms:
|
||
* Webfinger: @user@example.com
|
||
* Profile link: @example.com/mublog/user
|
||
*
|
||
* @author GNU Social
|
||
* @author Diogo Cordeiro <diogo@fc.up.pt>
|
||
* @param Profile $sender
|
||
* @param string $text input markup text
|
||
* @param array &$mention in/out param: set of found mentions
|
||
* @return boolean hook return value
|
||
*/
|
||
public function onEndFindMentions(Profile $sender, $text, &$mentions)
|
||
{
|
||
$matches = array();
|
||
|
||
foreach (self::extractWebfingerIds($text, '@') as $wmatch) {
|
||
list($target, $pos) = $wmatch;
|
||
$this->log(LOG_INFO, "Checking webfinger person '$target'");
|
||
$profile = null;
|
||
try {
|
||
$aprofile = Activitypub_profile::ensure_web_finger($target);
|
||
$profile = $aprofile->local_profile();
|
||
} catch (Exception $e) {
|
||
$this->log(LOG_ERR, "Webfinger check failed: " . $e->getMessage());
|
||
continue;
|
||
}
|
||
assert($profile instanceof Profile);
|
||
|
||
$displayName = !empty($profile->nickname) && mb_strlen($profile->nickname) < mb_strlen($target)
|
||
? $profile->getNickname() // TODO: we could do getBestName() or getFullname() here
|
||
: $target;
|
||
$url = $profile->getUri();
|
||
if (!common_valid_http_url($url)) {
|
||
$url = $profile->getUrl();
|
||
}
|
||
$matches[$pos] = array('mentioned' => array($profile),
|
||
'type' => 'mention',
|
||
'text' => $displayName,
|
||
'position' => $pos,
|
||
'length' => mb_strlen($target),
|
||
'url' => $url);
|
||
}
|
||
|
||
foreach (self::extractUrlMentions($text) as $wmatch) {
|
||
list($target, $pos) = $wmatch;
|
||
$schemes = array('https', 'http');
|
||
foreach ($schemes as $scheme) {
|
||
$url = "$scheme://$target";
|
||
$this->log(LOG_INFO, "Checking profile address '$url'");
|
||
try {
|
||
$aprofile = Activitypub_profile::fromUri($url);
|
||
$profile = $aprofile->local_profile();
|
||
$displayName = !empty($profile->nickname) && mb_strlen($profile->nickname) < mb_strlen($target) ?
|
||
$profile->nickname : $target;
|
||
$matches[$pos] = array('mentioned' => array($profile),
|
||
'type' => 'mention',
|
||
'text' => $displayName,
|
||
'position' => $pos,
|
||
'length' => mb_strlen($target),
|
||
'url' => $profile->getUrl());
|
||
break;
|
||
} catch (Exception $e) {
|
||
$this->log(LOG_ERR, "Profile check failed: " . $e->getMessage());
|
||
}
|
||
}
|
||
}
|
||
|
||
foreach ($mentions as $i => $other) {
|
||
// If we share a common prefix with a local user, override it!
|
||
$pos = $other['position'];
|
||
if (isset($matches[$pos])) {
|
||
$mentions[$i] = $matches[$pos];
|
||
unset($matches[$pos]);
|
||
}
|
||
}
|
||
foreach ($matches as $mention) {
|
||
$mentions[] = $mention;
|
||
}
|
||
|
||
return true;
|
||
}
|
||
|
||
/**
|
||
* Allow remote profile references to be used in commands:
|
||
* sub update@status.net
|
||
* whois evan@identi.ca
|
||
* reply http://identi.ca/evan hey what's up
|
||
*
|
||
* @author GNU Social
|
||
* @author Diogo Cordeiro <diogo@fc.up.pt>
|
||
* @param Command $command
|
||
* @param string $arg
|
||
* @param Profile &$profile
|
||
* @return hook return code
|
||
*/
|
||
public function onStartCommandGetProfile($command, $arg, &$profile)
|
||
{
|
||
try {
|
||
$aprofile = $this->pull_remote_profile($arg);
|
||
$profile = $aprofile->local_profile();
|
||
} catch (Exception $e) {
|
||
// No remote ActivityPub profile found
|
||
return true;
|
||
}
|
||
|
||
return false;
|
||
}
|
||
|
||
/********************************************************
|
||
* Discovery Events *
|
||
********************************************************/
|
||
|
||
/**
|
||
* Profile URI for remote profiles.
|
||
*
|
||
* @author GNU Social
|
||
* @author Diogo Cordeiro <diogo@fc.up.pt>
|
||
* @param Profile $profile
|
||
* @param string $uri in/out
|
||
* @return mixed hook return code
|
||
*/
|
||
public function onStartGetProfileUri($profile, &$uri)
|
||
{
|
||
$aprofile = Activitypub_profile::getKV('profile_id', $profile->id);
|
||
if ($aprofile instanceof Activitypub_profile) {
|
||
$uri = $aprofile->getUri();
|
||
return false;
|
||
}
|
||
return true;
|
||
}
|
||
|
||
/**
|
||
* Profile from URI.
|
||
*
|
||
* @author GNU Social
|
||
* @author Diogo Cordeiro <diogo@fc.up.pt>
|
||
* @param string $uri
|
||
* @param Profile &$profile in/out param: Profile got from URI
|
||
* @return mixed hook return code
|
||
*/
|
||
public function onStartGetProfileFromURI($uri, &$profile)
|
||
{
|
||
try {
|
||
$explorer = new Activitypub_explorer();
|
||
$profile = $explorer->lookup($uri)[0];
|
||
return false;
|
||
} catch (Exception $e) {
|
||
return true; // It's not an ActivityPub profile as far as we know, continue event handling
|
||
}
|
||
}
|
||
|
||
/********************************************************
|
||
* Delivery Events *
|
||
********************************************************/
|
||
|
||
/**
|
||
* Having established a remote subscription, send a notification to the
|
||
* remote ActivityPub profile's endpoint.
|
||
*
|
||
* @author Diogo Cordeiro <diogo@fc.up.pt>
|
||
* @param Profile $profile subscriber
|
||
* @param Profile $other subscribee
|
||
* @return hook return value
|
||
* @throws Exception
|
||
*/
|
||
public function onStartSubscribe(Profile $profile, Profile $other)
|
||
{
|
||
if (!$profile->isLocal() && $other->isLocal()) {
|
||
return true;
|
||
}
|
||
|
||
try {
|
||
$other = Activitypub_profile::from_profile($other);
|
||
} catch (Exception $e) {
|
||
return true;
|
||
}
|
||
|
||
$postman = new Activitypub_postman($profile, array($other));
|
||
|
||
$postman->follow();
|
||
|
||
return true;
|
||
}
|
||
|
||
/**
|
||
* Notify remote server on unsubscribe.
|
||
*
|
||
* @author Diogo Cordeiro <diogo@fc.up.pt>
|
||
* @param Profile $profile
|
||
* @param Profile $other
|
||
* @return hook return value
|
||
*/
|
||
public function onStartUnsubscribe(Profile $profile, Profile $other)
|
||
{
|
||
if (!$profile->isLocal() && $other->isLocal()) {
|
||
return true;
|
||
}
|
||
|
||
try {
|
||
$other = Activitypub_profile::from_profile($other);
|
||
} catch (Exception $e) {
|
||
return true;
|
||
}
|
||
|
||
$postman = new Activitypub_postman($profile, array($other));
|
||
|
||
$postman->undo_follow();
|
||
|
||
return true;
|
||
}
|
||
|
||
/**
|
||
* Notify remote users when their notices get favorited.
|
||
*
|
||
* @author Diogo Cordeiro <diogo@fc.up.pt>
|
||
* @param Profile $profile of local user doing the faving
|
||
* @param Notice $notice Notice being favored
|
||
* @return hook return value
|
||
*/
|
||
public function onEndFavorNotice(Profile $profile, Notice $notice)
|
||
{
|
||
// Only distribute local users' favor actions, remote users
|
||
// will have already distributed theirs.
|
||
if (!$profile->isLocal()) {
|
||
return true;
|
||
}
|
||
|
||
$other = array();
|
||
try {
|
||
$other[] = Activitypub_profile::from_profile($notice->getProfile());
|
||
} catch (Exception $e) {
|
||
// Local user can be ignored
|
||
}
|
||
foreach ($notice->getAttentionProfiles() as $to_profile) {
|
||
try {
|
||
$other[] = Activitypub_profile::from_profile($to_profile);
|
||
} catch (Exception $e) {
|
||
// Local user can be ignored
|
||
}
|
||
}
|
||
if ($notice->reply_to) {
|
||
try {
|
||
$other[] = Activitypub_profile::from_profile($notice->getParent()->getProfile());
|
||
} catch (Exception $e) {
|
||
// Local user can be ignored
|
||
}
|
||
try {
|
||
$mentions = $notice->getParent()->getAttentionProfiles();
|
||
foreach ($mentions as $to_profile) {
|
||
try {
|
||
$other[] = Activitypub_profile::from_profile($to_profile);
|
||
} catch (Exception $e) {
|
||
// Local user can be ignored
|
||
}
|
||
}
|
||
} catch (NoParentNoticeException $e) {
|
||
// This is not a reply to something (has no parent)
|
||
} catch (NoResultException $e) {
|
||
// Parent author's profile not found! Complain louder?
|
||
common_log(LOG_ERR, "Parent notice's author not found: ".$e->getMessage());
|
||
}
|
||
}
|
||
|
||
$postman = new Activitypub_postman($profile, $other);
|
||
|
||
$postman->like($notice);
|
||
|
||
return true;
|
||
}
|
||
|
||
/**
|
||
* Notify remote users when their notices get de-favorited.
|
||
*
|
||
* @author Diogo Cordeiro <diogo@fc.up.pt>
|
||
* @param Profile $profile of local user doing the de-faving
|
||
* @param Notice $notice Notice being favored
|
||
* @return hook return value
|
||
*/
|
||
public function onEndDisfavorNotice(Profile $profile, Notice $notice)
|
||
{
|
||
// Only distribute local users' favor actions, remote users
|
||
// will have already distributed theirs.
|
||
if (!$profile->isLocal()) {
|
||
return true;
|
||
}
|
||
|
||
$other = array();
|
||
try {
|
||
$other[] = Activitypub_profile::from_profile($notice->getProfile());
|
||
} catch (Exception $e) {
|
||
// Local user can be ignored
|
||
}
|
||
foreach ($notice->getAttentionProfiles() as $to_profile) {
|
||
try {
|
||
$other[] = Activitypub_profile::from_profile($to_profile);
|
||
} catch (Exception $e) {
|
||
// Local user can be ignored
|
||
}
|
||
}
|
||
if ($notice->reply_to) {
|
||
try {
|
||
$other[] = Activitypub_profile::from_profile($notice->getParent()->getProfile());
|
||
} catch (Exception $e) {
|
||
// Local user can be ignored
|
||
}
|
||
try {
|
||
$mentions = $notice->getParent()->getAttentionProfiles();
|
||
foreach ($mentions as $to_profile) {
|
||
try {
|
||
$other[] = Activitypub_profile::from_profile($to_profile);
|
||
} catch (Exception $e) {
|
||
// Local user can be ignored
|
||
}
|
||
}
|
||
} catch (NoParentNoticeException $e) {
|
||
// This is not a reply to something (has no parent)
|
||
} catch (NoResultException $e) {
|
||
// Parent author's profile not found! Complain louder?
|
||
common_log(LOG_ERR, "Parent notice's author not found: ".$e->getMessage());
|
||
}
|
||
}
|
||
|
||
$postman = new Activitypub_postman($profile, $other);
|
||
|
||
$postman->undo_like($notice);
|
||
|
||
return true;
|
||
}
|
||
|
||
/**
|
||
* Notify remote users when their notices get deleted
|
||
*
|
||
* @author Diogo Cordeiro <diogo@fc.up.pt>
|
||
* @return boolean hook flag
|
||
*/
|
||
public function onStartDeleteOwnNotice($user, $notice)
|
||
{
|
||
$profile = $user->getProfile();
|
||
|
||
// Only distribute local users' delete actions, remote users
|
||
// will have already distributed theirs.
|
||
if (!$profile->isLocal()) {
|
||
return true;
|
||
}
|
||
|
||
$other = array();
|
||
|
||
foreach ($notice->getAttentionProfiles() as $to_profile) {
|
||
try {
|
||
$other[] = Activitypub_profile::from_profile($to_profile);
|
||
} catch (Exception $e) {
|
||
// Local user can be ignored
|
||
}
|
||
}
|
||
if ($notice->reply_to) {
|
||
try {
|
||
$other[] = Activitypub_profile::from_profile($notice->getParent()->getProfile());
|
||
} catch (Exception $e) {
|
||
// Local user can be ignored
|
||
}
|
||
try {
|
||
$mentions = $notice->getParent()->getAttentionProfiles();
|
||
foreach ($mentions as $to_profile) {
|
||
try {
|
||
$other[] = Activitypub_profile::from_profile($to_profile);
|
||
} catch (Exception $e) {
|
||
// Local user can be ignored
|
||
}
|
||
}
|
||
} catch (NoParentNoticeException $e) {
|
||
// This is not a reply to something (has no parent)
|
||
} catch (NoResultException $e) {
|
||
// Parent author's profile not found! Complain louder?
|
||
common_log(LOG_ERR, "Parent notice's author not found: ".$e->getMessage());
|
||
}
|
||
}
|
||
|
||
$postman = new Activitypub_postman($profile, $other);
|
||
$postman->delete($notice);
|
||
return true;
|
||
}
|
||
|
||
/**
|
||
* Insert notifications for replies, mentions and repeats
|
||
*
|
||
* @author Diogo Cordeiro <diogo@fc.up.pt>
|
||
* @return boolean hook flag
|
||
*/
|
||
public function onStartNoticeDistribute($notice)
|
||
{
|
||
assert($notice->id > 0); // Ignore if not a valid notice
|
||
|
||
$profile = Profile::getKV($notice->profile_id);
|
||
|
||
if (!$profile->isLocal()) {
|
||
return true;
|
||
}
|
||
|
||
$other = array();
|
||
try {
|
||
$other[] = Activitypub_profile::from_profile($notice->getProfile());
|
||
} catch (Exception $e) {
|
||
// Local user can be ignored
|
||
}
|
||
foreach ($notice->getAttentionProfiles() as $to_profile) {
|
||
try {
|
||
$other[] = Activitypub_profile::from_profile($to_profile);
|
||
} catch (Exception $e) {
|
||
// Local user can be ignored
|
||
}
|
||
}
|
||
|
||
// Is Announce
|
||
if ($notice->isRepeat()) {
|
||
$repeated_notice = Notice::getKV('id', $notice->repeat_of);
|
||
if ($repeated_notice instanceof Notice) {
|
||
try {
|
||
$other[] = Activitypub_profile::from_profile($repeated_notice->getProfile());
|
||
} catch (Exception $e) {
|
||
// Local user can be ignored
|
||
}
|
||
|
||
$postman = new Activitypub_postman($profile, $other);
|
||
|
||
// That was it
|
||
$postman->announce($repeated_notice);
|
||
return true;
|
||
}
|
||
}
|
||
|
||
// Ignore for activity/non-post-verb notices
|
||
if (method_exists('ActivityUtils', 'compareVerbs')) {
|
||
$is_post_verb = ActivityUtils::compareVerbs(
|
||
$notice->verb,
|
||
[ActivityVerb::POST]
|
||
);
|
||
} else {
|
||
$is_post_verb = ($notice->verb == ActivityVerb::POST ? true : false);
|
||
}
|
||
if ($notice->source == 'activity' || !$is_post_verb) {
|
||
return true;
|
||
}
|
||
|
||
// Create
|
||
if ($notice->reply_to) {
|
||
try {
|
||
$other[] = Activitypub_profile::from_profile($notice->getParent()->getProfile());
|
||
} catch (Exception $e) {
|
||
// Local user can be ignored
|
||
}
|
||
try {
|
||
$mentions = $notice->getParent()->getAttentionProfiles();
|
||
foreach ($mentions as $to_profile) {
|
||
try {
|
||
$other[] = Activitypub_profile::from_profile($to_profile);
|
||
} catch (Exception $e) {
|
||
// Local user can be ignored
|
||
}
|
||
}
|
||
} catch (NoParentNoticeException $e) {
|
||
// This is not a reply to something (has no parent)
|
||
} catch (NoResultException $e) {
|
||
// Parent author's profile not found! Complain louder?
|
||
common_log(LOG_ERR, "Parent notice's author not found: ".$e->getMessage());
|
||
}
|
||
}
|
||
$postman = new Activitypub_postman($profile, $other);
|
||
|
||
// That was it
|
||
$postman->create($notice);
|
||
return true;
|
||
}
|
||
|
||
/**
|
||
* Override the "from ActivityPub" bit in notice lists to link to the
|
||
* original post and show the domain it came from.
|
||
*
|
||
* @author Diogo Cordeiro <diogo@fc.up.pt>
|
||
* @param Notice in $notice
|
||
* @param string out &$name
|
||
* @param string out &$url
|
||
* @param string out &$title
|
||
* @return mixed hook return code
|
||
*/
|
||
public function onStartNoticeSourceLink($notice, &$name, &$url, &$title)
|
||
{
|
||
// If we don't handle this, keep the event handler going
|
||
if (!in_array($notice->source, array('ActivityPub', 'share'))) {
|
||
return true;
|
||
}
|
||
|
||
try {
|
||
$url = $notice->getUrl();
|
||
// If getUrl() throws exception, $url is never set
|
||
|
||
$bits = parse_url($url);
|
||
$domain = $bits['host'];
|
||
if (substr($domain, 0, 4) == 'www.') {
|
||
$name = substr($domain, 4);
|
||
} else {
|
||
$name = $domain;
|
||
}
|
||
|
||
// TRANS: Title. %s is a domain name.
|
||
$title = sprintf(_m('Sent from %s via ActivityPub'), $domain);
|
||
|
||
// Abort event handler, we have a name and URL!
|
||
return false;
|
||
} catch (InvalidUrlException $e) {
|
||
// This just means we don't have the notice source data
|
||
return true;
|
||
}
|
||
}
|
||
}
|
||
|
||
/**
|
||
* Plugin return handler
|
||
*/
|
||
class ActivityPubReturn
|
||
{
|
||
/**
|
||
* Return a valid answer
|
||
*
|
||
* @author Diogo Cordeiro <diogo@fc.up.pt>
|
||
* @param array $res
|
||
* @param int 32 $code Status Code
|
||
* @return void
|
||
*/
|
||
public static function answer($res = '', $code = 202)
|
||
{
|
||
http_response_code($code);
|
||
header('Content-Type: application/activity+json');
|
||
echo json_encode($res, JSON_UNESCAPED_SLASHES | (isset($_GET["pretty"]) ? JSON_PRETTY_PRINT : null));
|
||
exit;
|
||
}
|
||
|
||
/**
|
||
* Return an error
|
||
*
|
||
* @author Diogo Cordeiro <diogo@fc.up.pt>
|
||
* @param string $m
|
||
* @param int32 $code Status Code
|
||
* @return void
|
||
*/
|
||
public static function error($m, $code = 500)
|
||
{
|
||
http_response_code($code);
|
||
header('Content-Type: application/activity+json');
|
||
$res[] = Activitypub_error::error_message_to_array($m);
|
||
echo json_encode($res, JSON_UNESCAPED_SLASHES);
|
||
exit;
|
||
}
|
||
|
||
/**
|
||
* Select content type from HTTP Accept header
|
||
*
|
||
* @author Maciej Łebkowski <m.lebkowski@gmail.com>
|
||
* @param array $mimeTypes Supported Types
|
||
* @return array|null of supported mime types sorted | null if none valid
|
||
*/
|
||
public static function getBestSupportedMimeType($mimeTypes = null)
|
||
{
|
||
if (!isset($_SERVER['HTTP_ACCEPT'])) {
|
||
return null;
|
||
}
|
||
|
||
// Values will be stored in this array
|
||
$AcceptTypes = [];
|
||
|
||
// Accept header is case insensitive, and whitespace isn’t important
|
||
$accept = strtolower(str_replace(' ', '', $_SERVER['HTTP_ACCEPT']));
|
||
// divide it into parts in the place of a ","
|
||
$accept = explode(',', $accept);
|
||
foreach ($accept as $a) {
|
||
// the default quality is 1.
|
||
$q = 1;
|
||
// check if there is a different quality
|
||
if (strpos($a, ';q=')) {
|
||
// divide "mime/type;q=X" into two parts: "mime/type" i "X"
|
||
list($a, $q) = explode(';q=', $a);
|
||
}
|
||
// mime-type $a is accepted with the quality $q
|
||
// WARNING: $q == 0 means, that mime-type isn’t supported!
|
||
$AcceptTypes[$a] = $q;
|
||
}
|
||
arsort($AcceptTypes);
|
||
|
||
// if no parameter was passed, just return parsed data
|
||
if (!$mimeTypes) {
|
||
return $AcceptTypes;
|
||
}
|
||
|
||
$mimeTypes = array_map('strtolower', (array)$mimeTypes);
|
||
|
||
// let’s check our supported types:
|
||
foreach ($AcceptTypes as $mime => $q) {
|
||
if ($q && in_array($mime, $mimeTypes)) {
|
||
return $mime;
|
||
}
|
||
}
|
||
// no mime-type found
|
||
return null;
|
||
}
|
||
}
|
||
|
||
/**
|
||
* Overwrites variables in URL-mapping
|
||
*/
|
||
class ActivityPubURLMapperOverwrite extends URLMapper
|
||
{
|
||
public static function variable($m, $path, $paramPatterns, $newaction)
|
||
{
|
||
$mimes = [
|
||
'application/json',
|
||
'application/activity+json',
|
||
'application/ld+json',
|
||
'application/ld+json; profile="https://www.w3.org/ns/activitystreams"'
|
||
];
|
||
|
||
if (is_null(ActivityPubReturn::getBestSupportedMimeType($mimes))) {
|
||
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;
|
||
}
|
||
}
|
||
}
|
||
}
|