2019-05-11 20:27:21 +09:00
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<?php
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// This file is part of GNU social - https://www.gnu.org/software/social
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//
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// GNU social 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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// GNU social 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 GNU social. If not, see <http://www.gnu.org/licenses/>.
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/**
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* ActivityPub implementation for GNU social
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*
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* @package GNUsocial
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* @author Diogo Cordeiro <diogo@fc.up.pt>
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* @copyright 2018-2019 Free Software Foundation, Inc http://www.fsf.org
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* @license https://www.gnu.org/licenses/agpl.html GNU AGPL v3 or later
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* @link http://www.gnu.org/software/social/
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*/
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defined('GNUSOCIAL') || die();
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2019-08-13 10:54:38 +09:00
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// Import plugin libs
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foreach (glob(__DIR__ . DIRECTORY_SEPARATOR . 'lib' . DIRECTORY_SEPARATOR . '*.php') as $filename) {
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require_once $filename;
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}
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// Import plugin models
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foreach (glob(__DIR__ . DIRECTORY_SEPARATOR . 'lib' . DIRECTORY_SEPARATOR . 'models' . DIRECTORY_SEPARATOR . '*.php') as $filename) {
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require_once $filename;
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}
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2019-05-11 20:27:21 +09:00
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// So that this isn't hardcoded everywhere
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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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2019-10-12 03:09:08 +09:00
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const ACTIVITYPUB_HTTP_CLIENT_HEADERS = [
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'Accept: application/ld+json; profile="https://www.w3.org/ns/activitystreams"',
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'User-Agent: GNUsocialBot ' . GNUSOCIAL_VERSION . ' - https://gnusocial.network'
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];
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2019-05-11 20:27:21 +09:00
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/**
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2019-11-04 00:37:49 +09:00
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* Adds ActivityPub support to GNU social when enabled
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*
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2019-05-11 20:27:21 +09:00
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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 https://www.gnu.org/licenses/agpl.html GNU AGPL v3 or later
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*/
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class ActivityPubPlugin extends Plugin
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{
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2019-08-30 00:49:13 +09:00
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const PLUGIN_VERSION = '0.4.0alpha0';
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2019-05-11 20:27:21 +09:00
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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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2019-12-11 07:27:32 +09:00
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* This is a discovery event but it seems more logical to have it separated.
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* This ensures that Profile->getUri() will always return the intended for a remote AP profile.
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2019-05-11 20:27:21 +09:00
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*
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* @param Profile $profile Actor's local profile
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2019-12-11 07:27:32 +09:00
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* @param string &$uri I/O Actor's URI
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2019-05-11 20:27:21 +09:00
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* @author Diogo Cordeiro <diogo@fc.up.pt>
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2019-12-11 07:27:32 +09:00
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* @return bool event hook
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2019-05-11 20:27:21 +09:00
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*/
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2019-12-11 07:27:32 +09:00
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public function onStartGetProfileUri(Profile $profile, &$uri): bool
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2019-05-11 20:27:21 +09:00
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{
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2019-12-11 07:27:32 +09:00
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$aprofile = Activitypub_profile::getKV('profile_id', $profile->id);
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if ($aprofile instanceof Activitypub_profile) {
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$uri = $aprofile->getUri();
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return false;
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}
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return true;
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2019-05-11 20:27:21 +09:00
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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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* @param string $url Notice's URL
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2019-09-13 19:56:36 +09:00
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* @param bool $grab_online whether to try online grabbing, defaults to true
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2019-08-27 23:37:01 +09:00
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* @return Notice|null The Notice object
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* @throws Exception This function or provides a Notice, null, or fails with exception
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2019-09-13 19:56:36 +09:00
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* @author Diogo Cordeiro <diogo@fc.up.pt>
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2019-05-11 20:27:21 +09:00
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*/
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2019-09-13 19:56:36 +09:00
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public static function grab_notice_from_url(string $url, bool $grab_online = true): ?Notice
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2019-05-11 20:27:21 +09:00
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{
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/* Offline Grabbing */
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try {
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// Look for a known remote notice
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return Notice::getByUri($url);
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} catch (Exception $e) {
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// Look for a local notice (unfortunately GNU social doesn't
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// provide this functionality natively)
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try {
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2020-08-06 01:21:30 +09:00
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$candidate = Notice::getByID((int)substr($url, (strlen(common_local_url('apNotice', ['id' => 0]))-1)));
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2019-05-11 20:27:21 +09:00
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if (common_local_url('apNotice', ['id' => $candidate->getID()]) === $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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2019-09-13 19:56:36 +09:00
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if ($grab_online) {
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2019-08-27 23:37:01 +09:00
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/* Online Grabbing */
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2020-07-08 01:57:48 +09:00
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$client = new HTTPClient();
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$response = $client->get($url, ACTIVITYPUB_HTTP_CLIENT_HEADERS);
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2019-08-27 23:37:01 +09:00
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$object = json_decode($response->getBody(), true);
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2019-10-12 03:09:08 +09:00
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if (Activitypub_notice::validate_note($object)) {
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2020-07-08 01:57:48 +09:00
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// Okay, we've found a valid note object!
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// Now we need to find the Actor who authored it
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// The right way would be to grab attributed to and check its outbox
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// But that would be outright inefficient
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// Hence, let's just compare the domain names...
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if (isset($object['attributedTo'])) {
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$acclaimed_actor_profile = ActivityPub_explorer::get_profile_from_url($object['attributedTo']);
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} elseif (isset($object['actor'])) {
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$acclaimed_actor_profile = ActivityPub_explorer::get_profile_from_url($object['actor']);
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} else {
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throw new Exception("A notice can't be created without an actor.");
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}
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if (parse_url($acclaimed_actor_profile->getUri(), PHP_URL_HOST) == parse_url($object['id'], PHP_URL_HOST)) {
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return Activitypub_notice::create_notice($object, $acclaimed_actor_profile);
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} else {
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throw new Exception("The acclaimed actor didn't create this note.");
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}
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2019-10-12 03:09:08 +09:00
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} else {
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throw new Exception("Valid ActivityPub Notice object but unsupported by GNU social.");
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}
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2019-08-27 23:37:01 +09:00
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}
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common_debug('ActivityPubPlugin Notice Grabber: failed to find: '.$url);
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return null;
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2019-05-11 20:27:21 +09:00
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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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* @throws Exception
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*/
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public function onRouterInitialized(URLMapper $m)
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{
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2019-07-16 00:22:34 +09:00
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$acceptHeaders = [
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'application/ld+json; profile="https://www.w3.org/ns/activitystreams"' => 0,
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'application/activity+json' => 1,
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'application/json' => 2,
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'application/ld+json' => 3
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];
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2019-05-11 20:27:21 +09:00
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2020-07-08 01:57:48 +09:00
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$m->connect(
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'user/:id',
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['action' => 'apActorProfile'],
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['id' => '[0-9]+'],
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true,
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$acceptHeaders
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);
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$m->connect(
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':nickname',
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['action' => 'apActorProfile'],
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['nickname' => Nickname::DISPLAY_FMT],
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true,
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$acceptHeaders
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);
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$m->connect(
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':nickname/',
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['action' => 'apActorProfile'],
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['nickname' => Nickname::DISPLAY_FMT],
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true,
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$acceptHeaders
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);
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2020-08-28 09:12:40 +09:00
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// v3
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$m->connect(
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'activity/:id',
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['action' => 'apNotice'],
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['id' => '[0-9]+'],
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);
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// v2
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2020-07-08 01:57:48 +09:00
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$m->connect(
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'notice/:id',
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['action' => 'apNotice'],
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['id' => '[0-9]+'],
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true,
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$acceptHeaders
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);
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2019-05-11 20:27:21 +09:00
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$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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$m->connect(
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'user/:id/inbox.json',
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['action' => 'apInbox'],
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['id' => '[0-9]+']
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);
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$m->connect(
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'user/:id/outbox.json',
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['action' => 'apActorOutbox'],
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['id' => '[0-9]+']
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);
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$m->connect(
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'inbox.json',
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['action' => 'apInbox']
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);
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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 $versions
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* @return bool hook true
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*/
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2019-08-12 23:03:30 +09:00
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public function onPluginVersion(array &$versions): bool
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2019-05-11 20:27:21 +09:00
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{
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$versions[] = [
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'name' => 'ActivityPub',
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'version' => self::PLUGIN_VERSION,
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'author' => 'Diogo Cordeiro',
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2019-08-22 04:33:27 +09:00
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'homepage' => 'https://notabug.org/diogo/gnu-social/src/nightly/plugins/ActivityPub',
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2019-05-11 20:27:21 +09:00
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// TRANS: Plugin description.
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'rawdescription' => _m('Follow people across social networks that implement '.
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'<a href="https://activitypub.rocks/">ActivityPub</a>.')
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];
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return true;
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}
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2019-08-07 05:28:55 +09:00
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/**
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* Set up queue handlers for required interactions
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*
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* @param QueueManager $qm
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* @return bool event hook return
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*/
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public function onEndInitializeQueueManager(QueueManager $qm): bool
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{
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// Notice distribution
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$qm->connect('activitypub', 'ActivityPubQueueHandler');
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return true;
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}
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/**
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* Enqueue saved notices for distribution
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*
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* @param Notice $notice notice to be distributed
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* @param Array &$transports list of transports to queue for
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* @return bool event hook return
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*/
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2020-07-08 01:57:48 +09:00
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public function onStartEnqueueNotice(Notice $notice, array &$transports): bool
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2019-08-07 05:28:55 +09:00
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{
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try {
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$id = $notice->getID();
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if ($id > 0) {
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$transports[] = 'activitypub';
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$this->log(LOG_INFO, "Notice:{$id} queued for distribution");
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}
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} catch (Exception $e) {
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$this->log(LOG_ERR, "Invalid notice, not queueing for distribution");
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}
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return true;
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}
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2019-08-13 08:05:51 +09:00
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/**
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* Update notice before saving.
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* We'll use this as a hack to maintain replies to unlisted/followers-only
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* notices away from the public timelines.
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*
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* @param Notice &$notice notice to be saved
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* @return bool event hook return
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*/
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2020-07-08 01:57:48 +09:00
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public function onStartNoticeSave(Notice &$notice): bool
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{
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2019-08-13 08:05:51 +09:00
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if ($notice->reply_to) {
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try {
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$parent = $notice->getParent();
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$is_local = (int)$parent->is_local;
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// if we're replying unlisted/followers-only notices received by AP
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// or replying to replies of such notices, then we make sure to set
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// the correct type flag.
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2020-07-08 01:57:48 +09:00
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if (($parent->source === 'ActivityPub' && $is_local === Notice::GATEWAY) ||
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($parent->source === 'web' && $is_local === Notice::LOCAL_NONPUBLIC)) {
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2019-08-13 08:05:51 +09:00
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$this->log(LOG_INFO, "Enforcing type flag LOCAL_NONPUBLIC for new notice");
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$notice->is_local = Notice::LOCAL_NONPUBLIC;
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}
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} catch (NoParentNoticeException $e) {
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// This is not a reply to something (has no parent)
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}
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}
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return true;
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}
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2019-08-20 07:33:18 +09:00
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/**
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* Add AP-subscriptions for private messaging
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*
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* @param User $current current logged user
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* @param array &$recipients
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* @return void
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*/
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2020-07-08 01:57:48 +09:00
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public function onFillDirectMessageRecipients(User $current, array &$recipients): void
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{
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2019-08-20 07:33:18 +09:00
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try {
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$subs = Activitypub_profile::getSubscribed($current->getProfile());
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foreach ($subs as $sub) {
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if (!$sub->isLocal()) { // AP plugin adds AP users
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try {
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$value = 'profile:'.$sub->getID();
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|
|
$recipients[$value] = substr($sub->getAcctUri(), 5) . " [{$sub->getBestName()}]";
|
|
|
|
} catch (ProfileNoAcctUriException $e) {
|
|
|
|
$recipients[$value] = "[?@?] " . $e->profile->getBestName();
|
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
} catch (NoResultException $e) {
|
|
|
|
// let it go
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
/**
|
|
|
|
* Validate AP-recipients for profile page message action addition
|
2019-09-13 19:56:36 +09:00
|
|
|
*
|
2019-08-20 07:33:18 +09:00
|
|
|
* @param Profile $recipient
|
|
|
|
* @return bool hook return value
|
|
|
|
*/
|
2020-07-08 01:57:48 +09:00
|
|
|
public function onDirectMessageProfilePageActions(Profile $recipient): bool
|
|
|
|
{
|
2019-08-20 07:33:18 +09:00
|
|
|
$to = Activitypub_profile::getKV('profile_id', $recipient->getID());
|
|
|
|
if ($to instanceof Activitypub_profile) {
|
|
|
|
return false; // we can validate this profile, signal it
|
|
|
|
}
|
|
|
|
|
|
|
|
return true;
|
|
|
|
}
|
|
|
|
|
2019-08-27 23:37:01 +09:00
|
|
|
/**
|
|
|
|
* Mark an ap_profile object for deletion
|
2019-09-13 19:56:36 +09:00
|
|
|
*
|
2019-08-27 23:37:01 +09:00
|
|
|
* @param Profile profile being deleted
|
|
|
|
* @param array &$related objects with same profile_id to be deleted
|
|
|
|
* @return void
|
|
|
|
*/
|
|
|
|
public function onProfileDeleteRelated(Profile $profile, array &$related): void
|
|
|
|
{
|
2019-10-21 04:07:46 +09:00
|
|
|
$related[] = 'Activitypub_profile';
|
|
|
|
$related[] = 'Activitypub_rsa';
|
2019-08-27 23:37:01 +09:00
|
|
|
|
2019-10-21 04:07:46 +09:00
|
|
|
// pending_follow_requests doesn't have a profile_id column,
|
|
|
|
// so we must handle it manually
|
|
|
|
$follow = new Activitypub_pending_follow_requests(null, $profile->getID());
|
|
|
|
|
|
|
|
if ($follow->find()) {
|
|
|
|
while ($follow->fetch()) {
|
|
|
|
$follow->delete();
|
2019-08-27 23:37:01 +09:00
|
|
|
}
|
2019-09-13 19:56:36 +09:00
|
|
|
}
|
2019-08-27 23:37:01 +09:00
|
|
|
}
|
|
|
|
|
2019-05-11 20:27:21 +09:00
|
|
|
/**
|
|
|
|
* Plugin Nodeinfo information
|
|
|
|
*
|
|
|
|
* @param array $protocols
|
|
|
|
* @return bool hook true
|
|
|
|
*/
|
|
|
|
public function onNodeInfoProtocols(array &$protocols)
|
|
|
|
{
|
|
|
|
$protocols[] = "activitypub";
|
|
|
|
return true;
|
|
|
|
}
|
|
|
|
|
|
|
|
/**
|
|
|
|
* Adds an indicator on Remote ActivityPub profiles.
|
|
|
|
*
|
|
|
|
* @param HTMLOutputter $out
|
|
|
|
* @param Profile $profile
|
|
|
|
* @return boolean hook return value
|
|
|
|
* @throws Exception
|
|
|
|
* @author Diogo Cordeiro <diogo@fc.up.pt>
|
|
|
|
*/
|
|
|
|
public function onEndShowAccountProfileBlock(HTMLOutputter $out, Profile $profile)
|
|
|
|
{
|
|
|
|
if ($profile->isLocal()) {
|
|
|
|
return true;
|
|
|
|
}
|
2020-04-07 10:42:03 +09:00
|
|
|
|
2019-10-21 04:07:46 +09:00
|
|
|
$aprofile = Activitypub_profile::getKV('profile_id', $profile->getID());
|
|
|
|
if (!$aprofile instanceof Activitypub_profile) {
|
2019-05-11 20:27:21 +09:00
|
|
|
// 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, 'ActivityPub');
|
|
|
|
$out->element('dd', null, _m('Remote Profile'));
|
|
|
|
$out->elementEnd('dl');
|
|
|
|
|
|
|
|
return true;
|
|
|
|
}
|
|
|
|
|
2019-08-30 00:49:13 +09:00
|
|
|
/**
|
|
|
|
* Hack the notice search-box and try to grab remote profiles or notices.
|
2019-09-13 19:56:36 +09:00
|
|
|
*
|
2019-08-30 00:49:13 +09:00
|
|
|
* Note that, on successful grabbing, this function will redirect to the
|
|
|
|
* new profile/notice, so URL searching is directly affected. A good solution
|
|
|
|
* for this is to store the URLs in the notice text without the https/http
|
|
|
|
* prefixes. This would change the queries for URL searching and therefore we
|
|
|
|
* could do both search and grab.
|
2019-09-13 19:56:36 +09:00
|
|
|
*
|
2019-08-30 00:49:13 +09:00
|
|
|
* @param string $query search query
|
2019-09-13 19:56:36 +09:00
|
|
|
* @return bool hook
|
|
|
|
* @author Bruno Casteleiro <up201505347@fc.up.pt>
|
2019-08-30 00:49:13 +09:00
|
|
|
*/
|
2019-09-13 19:56:36 +09:00
|
|
|
public function onStartNoticeSearch(string $query): bool
|
2019-08-30 00:49:13 +09:00
|
|
|
{
|
|
|
|
if (!common_logged_in()) {
|
2019-09-13 19:56:36 +09:00
|
|
|
// early return: Only allow logged users to import/search for remote actors or notes
|
|
|
|
return true;
|
2019-08-30 00:49:13 +09:00
|
|
|
}
|
|
|
|
|
2019-09-13 19:56:36 +09:00
|
|
|
if (preg_match('!^((?:\w+\.)*\w+@(?:\w+\.)*\w+(?:\w+\-\w+)*\.\w+)$!', $query)) { // WebFinger ID found!
|
|
|
|
// Try to grab remote actor
|
|
|
|
$aprofile = self::pull_remote_profile($query);
|
|
|
|
if ($aprofile instanceof Activitypub_profile) {
|
|
|
|
$url = common_local_url('userbyid', ['id' => $aprofile->getID()], null, null, false);
|
|
|
|
common_redirect($url, 303);
|
2019-10-12 00:00:11 +09:00
|
|
|
return false;
|
2019-09-13 19:56:36 +09:00
|
|
|
}
|
|
|
|
} elseif (filter_var($query, FILTER_VALIDATE_URL)) { // URL found!
|
|
|
|
/* Is this an ActivityPub notice? */
|
2019-08-30 00:49:13 +09:00
|
|
|
|
2019-09-13 19:56:36 +09:00
|
|
|
// If we already know it, just return
|
|
|
|
try {
|
|
|
|
$notice = self::grab_notice_from_url($query, false); // Only check locally
|
|
|
|
if ($notice instanceof Notice) {
|
|
|
|
return true;
|
|
|
|
}
|
|
|
|
} catch (Exception $e) {
|
|
|
|
// We will next try online
|
2019-08-30 00:49:13 +09:00
|
|
|
}
|
|
|
|
|
2019-09-13 19:56:36 +09:00
|
|
|
// Otherwise, try to grab it
|
|
|
|
try {
|
|
|
|
$notice = self::grab_notice_from_url($query); // Unfortunately we will be trying locally again
|
|
|
|
if ($notice instanceof Notice) {
|
|
|
|
$url = common_local_url('shownotice', ['notice' => $notice->getID()]);
|
|
|
|
common_redirect($url, 303);
|
|
|
|
}
|
|
|
|
} catch (Exception $e) {
|
|
|
|
// We will next check if this URL is an actor
|
2019-08-30 00:49:13 +09:00
|
|
|
}
|
|
|
|
|
2019-09-13 19:56:36 +09:00
|
|
|
/* Is this an ActivityPub actor? */
|
|
|
|
|
|
|
|
// If we already know it, just return
|
|
|
|
try {
|
|
|
|
$explorer = new Activitypub_explorer();
|
|
|
|
$profile = $explorer->lookup($query, false)[0]; // Only check locally
|
|
|
|
if ($profile instanceof Profile) {
|
|
|
|
return true;
|
|
|
|
}
|
|
|
|
} catch (Exception $e) {
|
|
|
|
// We will next try online
|
|
|
|
}
|
2019-08-30 00:49:13 +09:00
|
|
|
|
2019-09-13 19:56:36 +09:00
|
|
|
// Try to grab remote actor
|
|
|
|
try {
|
|
|
|
if (!isset($explorer)) {
|
|
|
|
$explorer = new Activitypub_explorer();
|
|
|
|
}
|
|
|
|
$profile = $explorer->lookup($query)[0]; // Unfortunately we will be trying locally again
|
|
|
|
if ($profile instanceof Profile) {
|
|
|
|
$url = common_local_url('userbyid', ['id' => $profile->getID()], null, null, false);
|
|
|
|
common_redirect($url, 303);
|
|
|
|
return true;
|
|
|
|
}
|
|
|
|
} catch (Exception $e) {
|
|
|
|
// Let the search run naturally
|
|
|
|
}
|
2019-08-30 00:49:13 +09:00
|
|
|
}
|
2019-09-13 19:56:36 +09:00
|
|
|
return true;
|
2019-08-30 00:49:13 +09:00
|
|
|
}
|
|
|
|
|
2019-05-11 20:27:21 +09:00
|
|
|
/**
|
|
|
|
* Make sure necessary tables are filled out.
|
|
|
|
*
|
2019-09-13 19:56:36 +09:00
|
|
|
* @return bool hook true
|
2019-05-11 20:27:21 +09:00
|
|
|
*/
|
|
|
|
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
|
|
|
|
*
|
|
|
|
* @param string $arg A remote user identifier
|
|
|
|
* @return Activitypub_profile|null Valid profile in success | null otherwise
|
2019-09-13 19:56:36 +09:00
|
|
|
* @author GNU social
|
|
|
|
* @author Diogo Cordeiro <diogo@fc.up.pt>
|
2019-05-11 20:27:21 +09:00
|
|
|
*/
|
|
|
|
public static function pull_remote_profile($arg)
|
|
|
|
{
|
|
|
|
if (preg_match('!^((?:\w+\.)*\w+@(?:\w+\.)*\w+(?:\w+\-\w+)*\.\w+)$!', $arg)) {
|
|
|
|
// webfinger lookup
|
|
|
|
try {
|
2019-09-13 19:56:36 +09:00
|
|
|
return Activitypub_profile::ensure_webfinger($arg);
|
2019-05-11 20:27:21 +09:00
|
|
|
} catch (Exception $e) {
|
|
|
|
common_log(LOG_ERR, 'Webfinger lookup failed for ' .
|
|
|
|
$arg . ': ' . $e->getMessage());
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
// Look for profile URLs, with or without scheme:
|
|
|
|
$urls = [];
|
|
|
|
if (preg_match('!^https?://((?:\w+\.)*\w+(?:\w+\-\w+)*\.\w+(?:/\w+)+)$!', $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,
|
|
|
|
$wmatches,
|
|
|
|
PREG_OFFSET_CAPTURE
|
2020-07-08 01:57:48 +09:00
|
|
|
);
|
2019-05-11 20:27:21 +09:00
|
|
|
if ($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 = [];
|
|
|
|
// 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,
|
|
|
|
$wmatches,
|
|
|
|
PREG_OFFSET_CAPTURE
|
2020-07-08 01:57:48 +09:00
|
|
|
);
|
2019-05-11 20:27:21 +09:00
|
|
|
if ($result === false) {
|
|
|
|
common_log(LOG_ERR, __METHOD__ . ': Error parsing profile URL mentions from text (preg_last_error=='.preg_last_error().').');
|
|
|
|
return [];
|
|
|
|
} 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
|
|
|
|
*
|
|
|
|
* @param XML_XRD $xrd
|
|
|
|
* @param Managed_DataObject $object
|
|
|
|
* @throws Exception
|
|
|
|
* @author Diogo Cordeiro <diogo@fc.up.pt>
|
|
|
|
*/
|
2019-08-09 23:17:13 +09:00
|
|
|
public function onEndWebFingerProfileLinks(XML_XRD $xrd, Managed_DataObject $object)
|
2019-05-11 20:27:21 +09:00
|
|
|
{
|
|
|
|
if ($object->isPerson()) {
|
|
|
|
$link = new XML_XRD_Element_Link(
|
|
|
|
'self',
|
2019-12-11 07:27:32 +09:00
|
|
|
$object->getProfile()->getUri(),
|
2019-05-11 20:27:21 +09:00
|
|
|
'application/activity+json'
|
|
|
|
);
|
2019-07-09 03:23:48 +09:00
|
|
|
$xrd->links[] = clone($link);
|
2019-05-11 20:27:21 +09:00
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
/**
|
|
|
|
* Find any explicit remote mentions. Accepted forms:
|
|
|
|
* Webfinger: @user@example.com
|
|
|
|
* Profile link:
|
|
|
|
* @param Profile $sender
|
|
|
|
* @param string $text input markup text
|
|
|
|
* @param $mentions
|
|
|
|
* @return boolean hook return value
|
|
|
|
* @throws InvalidUrlException
|
|
|
|
* @author Diogo Cordeiro <diogo@fc.up.pt>
|
|
|
|
* @example.com/mublog/user
|
|
|
|
*
|
|
|
|
* @author GNU social
|
|
|
|
*/
|
|
|
|
public function onEndFindMentions(Profile $sender, $text, &$mentions)
|
|
|
|
{
|
|
|
|
$matches = [];
|
|
|
|
|
|
|
|
foreach (self::extractWebfingerIds($text, '@') as $wmatch) {
|
|
|
|
list($target, $pos) = $wmatch;
|
|
|
|
$this->log(LOG_INFO, "Checking webfinger person '$target'");
|
|
|
|
$profile = null;
|
|
|
|
try {
|
2019-09-13 19:56:36 +09:00
|
|
|
$aprofile = Activitypub_profile::ensure_webfinger($target);
|
2019-05-11 20:27:21 +09:00
|
|
|
$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
|
|
|
|
*
|
|
|
|
* @param Command $command
|
|
|
|
* @param string $arg
|
|
|
|
* @param Profile &$profile
|
|
|
|
* @return boolean hook return code
|
|
|
|
* @author GNU social
|
|
|
|
* @author Diogo Cordeiro <diogo@fc.up.pt>
|
|
|
|
*/
|
|
|
|
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 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 {
|
2019-09-14 02:55:23 +09:00
|
|
|
$profile = Activitypub_explorer::get_profile_from_url($uri);
|
2019-05-11 20:27:21 +09:00
|
|
|
return false;
|
|
|
|
} catch (Exception $e) {
|
|
|
|
return true; // It's not an ActivityPub profile as far as we know, continue event handling
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
2019-08-26 00:01:33 +09:00
|
|
|
/**
|
|
|
|
* Try to grab and store the remote profile by the given uri
|
2019-09-13 19:56:36 +09:00
|
|
|
*
|
2019-08-26 00:01:33 +09:00
|
|
|
* @param string $uri
|
|
|
|
* @param Profile &$profile
|
|
|
|
* @return bool
|
|
|
|
*/
|
|
|
|
public function onRemoteFollowPullProfile(string $uri, ?Profile &$profile): bool
|
|
|
|
{
|
|
|
|
try {
|
|
|
|
$aprofile = $this->pull_remote_profile($uri);
|
|
|
|
if ($aprofile instanceof Activitypub_profile) {
|
|
|
|
$profile = $aprofile->local_profile();
|
|
|
|
}
|
|
|
|
} catch (Exception $e) {
|
|
|
|
// No remote ActivityPub profile found
|
|
|
|
return true;
|
|
|
|
}
|
|
|
|
|
|
|
|
return is_null($profile);
|
|
|
|
}
|
|
|
|
|
2019-05-11 20:27:21 +09:00
|
|
|
/********************************************************
|
|
|
|
* Delivery Events *
|
|
|
|
********************************************************/
|
|
|
|
|
|
|
|
/**
|
|
|
|
* Having established a remote subscription, send a notification to the
|
|
|
|
* remote ActivityPub profile's endpoint.
|
|
|
|
*
|
|
|
|
* @param Profile $profile subscriber
|
|
|
|
* @param Profile $other subscribee
|
|
|
|
* @return bool return value
|
|
|
|
* @throws HTTP_Request2_Exception
|
|
|
|
* @author Diogo Cordeiro <diogo@fc.up.pt>
|
|
|
|
*/
|
2020-07-08 01:57:48 +09:00
|
|
|
public function onStartSubscribe(Profile $profile, Profile $other)
|
|
|
|
{
|
2019-08-30 03:33:15 +09:00
|
|
|
if (!$profile->isLocal()) {
|
2019-05-11 20:27:21 +09:00
|
|
|
return true;
|
|
|
|
}
|
|
|
|
|
2019-08-30 03:33:15 +09:00
|
|
|
$other = Activitypub_profile::getKV('profile_id', $other->getID());
|
|
|
|
if (!$other instanceof Activitypub_profile) {
|
|
|
|
return true;
|
2019-05-11 20:27:21 +09:00
|
|
|
}
|
|
|
|
|
2019-08-30 03:33:15 +09:00
|
|
|
$postman = new Activitypub_postman($profile, [$other]);
|
2019-05-11 20:27:21 +09:00
|
|
|
$postman->follow();
|
|
|
|
|
|
|
|
return true;
|
|
|
|
}
|
|
|
|
|
|
|
|
/**
|
|
|
|
* Notify remote server on unsubscribe.
|
|
|
|
*
|
|
|
|
* @param Profile $profile
|
|
|
|
* @param Profile $other
|
|
|
|
* @return bool return value
|
|
|
|
* @throws HTTP_Request2_Exception
|
|
|
|
* @author Diogo Cordeiro <diogo@fc.up.pt>
|
|
|
|
*/
|
|
|
|
public function onStartUnsubscribe(Profile $profile, Profile $other)
|
|
|
|
{
|
2019-08-30 03:33:15 +09:00
|
|
|
if (!$profile->isLocal()) {
|
2019-05-11 20:27:21 +09:00
|
|
|
return true;
|
|
|
|
}
|
|
|
|
|
2019-08-30 03:33:15 +09:00
|
|
|
$other = Activitypub_profile::getKV('profile_id', $other->getID());
|
|
|
|
if (!$other instanceof Activitypub_profile) {
|
|
|
|
return true;
|
2019-05-11 20:27:21 +09:00
|
|
|
}
|
|
|
|
|
2019-08-30 03:33:15 +09:00
|
|
|
$postman = new Activitypub_postman($profile, [$other]);
|
2019-05-11 20:27:21 +09:00
|
|
|
$postman->undo_follow();
|
|
|
|
|
|
|
|
return true;
|
|
|
|
}
|
|
|
|
|
2020-08-27 10:14:47 +09:00
|
|
|
/**
|
|
|
|
* Notify remote users when their notices get de-favourited.
|
|
|
|
*
|
|
|
|
* @param Profile $profile of local user doing the de-faving
|
|
|
|
* @param Notice $notice Notice being favored
|
|
|
|
* @return bool return value
|
|
|
|
* @throws HTTP_Request2_Exception
|
|
|
|
* @throws InvalidUrlException
|
|
|
|
* @author Diogo Cordeiro <diogo@fc.up.pt>
|
|
|
|
*/
|
|
|
|
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 = [];
|
|
|
|
|
|
|
|
try {
|
|
|
|
$other[] = Activitypub_profile::from_profile($notice->getProfile());
|
|
|
|
} catch (Exception $e) {
|
|
|
|
// Local user can be ignored
|
|
|
|
}
|
|
|
|
|
|
|
|
$other = array_merge($other,
|
|
|
|
Activitypub_profile::from_profile_collection(
|
|
|
|
$notice->getAttentionProfiles()
|
|
|
|
));
|
|
|
|
|
|
|
|
if ($notice->reply_to) {
|
|
|
|
try {
|
|
|
|
$parent_notice = $notice->getParent();
|
|
|
|
|
|
|
|
try {
|
|
|
|
$other[] = Activitypub_profile::from_profile($parent_notice->getProfile());
|
|
|
|
} catch (Exception $e) {
|
|
|
|
// Local user can be ignored
|
|
|
|
}
|
|
|
|
|
|
|
|
$other = array_merge($other,
|
|
|
|
Activitypub_profile::from_profile_collection(
|
|
|
|
$parent_notice->getAttentionProfiles()
|
|
|
|
));
|
|
|
|
} 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;
|
|
|
|
}
|
|
|
|
|
2019-08-27 23:37:01 +09:00
|
|
|
/**
|
|
|
|
* Notify remote followers when a user gets deleted
|
2019-09-13 19:56:36 +09:00
|
|
|
*
|
2019-08-27 23:37:01 +09:00
|
|
|
* @param Action $action
|
|
|
|
* @param User $user user being deleted
|
|
|
|
*/
|
|
|
|
public function onEndDeleteUser(Action $action, User $user): void
|
|
|
|
{
|
|
|
|
$postman = new Activitypub_postman($user->getProfile());
|
|
|
|
$postman->delete_profile();
|
|
|
|
}
|
|
|
|
|
2019-08-20 07:33:18 +09:00
|
|
|
/**
|
|
|
|
* Federate private message
|
|
|
|
*
|
|
|
|
* @param Notice $message
|
|
|
|
* @return void
|
|
|
|
*/
|
2020-07-08 01:57:48 +09:00
|
|
|
public function onSendDirectMessage(Notice $message): void
|
|
|
|
{
|
2019-08-20 07:33:18 +09:00
|
|
|
$from = $message->getProfile();
|
|
|
|
if (!$from->isLocal()) {
|
|
|
|
// nothing to do
|
|
|
|
return;
|
|
|
|
}
|
|
|
|
|
|
|
|
$to = Activitypub_profile::from_profile_collection(
|
|
|
|
$message->getAttentionProfiles()
|
|
|
|
);
|
|
|
|
|
|
|
|
if (!empty($to)) {
|
|
|
|
$postman = new Activitypub_postman($from, $to);
|
|
|
|
$postman->create_direct_note($message);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
2019-05-11 20:27:21 +09:00
|
|
|
/**
|
|
|
|
* 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
|
|
|
|
* @param $name
|
|
|
|
* @param $url
|
|
|
|
* @param $title
|
|
|
|
* @return mixed hook return code
|
|
|
|
* @throws Exception
|
|
|
|
*/
|
|
|
|
public function onStartNoticeSourceLink($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
|
|
|
|
*
|
|
|
|
* @param string $res
|
|
|
|
* @param int $code Status Code
|
|
|
|
* @return void
|
|
|
|
* @author Diogo Cordeiro <diogo@fc.up.pt>
|
|
|
|
*/
|
|
|
|
public static function answer($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
|
|
|
|
*
|
|
|
|
* @param string $m
|
|
|
|
* @param int $code Status Code
|
|
|
|
* @return void
|
|
|
|
* @author Diogo Cordeiro <diogo@fc.up.pt>
|
|
|
|
*/
|
|
|
|
public static function error($m, $code = 400)
|
|
|
|
{
|
|
|
|
http_response_code($code);
|
|
|
|
header('Content-Type: application/activity+json');
|
|
|
|
$res[] = Activitypub_error::error_message_to_array($m);
|
|
|
|
echo json_encode($res, JSON_UNESCAPED_SLASHES);
|
|
|
|
exit;
|
|
|
|
}
|
|
|
|
}
|