forked from GNUsocial/gnu-social
256 lines
8.7 KiB
PHP
256 lines
8.7 KiB
PHP
<?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 queue handler for notice distribution
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*
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* @package GNUsocial
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* @author Bruno Casteleiro <brunoccast@fc.up.pt>
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* @author Diogo Cordeiro <diogo@fc.up.pt>
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* @copyright 2019-2020 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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*/
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defined('GNUSOCIAL') || die();
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/**
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* @copyright 2019-2020 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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*/
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class ActivityPubQueueHandler extends QueueHandler
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{
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/**
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* Getter of the queue transport name.
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*
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* @return string transport name
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*/
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public function transport(): string
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{
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return 'activitypub';
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}
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/**
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* Notice distribution handler.
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*
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* @param Notice $notice notice to be distributed.
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* @return bool true on success, false otherwise
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* @throws HTTP_Request2_Exception
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* @throws InvalidUrlException
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* @throws ServerException
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* @author Diogo Cordeiro <diogo@fc.up.pt>
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*/
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public function handle($notice): bool
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{
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if (!($notice instanceof Notice)) {
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common_log(LOG_ERR, 'Got a bogus notice, not distributing');
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return true;
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}
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$profile = $notice->getProfile();
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if (!$profile->isLocal()) {
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return true;
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}
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if ($notice->source == 'activity') {
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common_log(LOG_ERR, "Ignoring distribution of notice:{$notice->id}: activity source");
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return true;
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}
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$other = Activitypub_profile::from_profile_collection(
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$notice->getAttentionProfiles()
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);
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try {
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// Handling a Create?
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if (ActivityUtils::compareVerbs($notice->verb, [ActivityVerb::POST, ActivityVerb::SHARE])) {
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return $this->handle_create($profile, $notice, $other);
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}
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// Handling a Like?
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if (ActivityUtils::compareVerbs($notice->verb, [ActivityVerb::FAVORITE])) {
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return $this->onEndFavorNotice($profile, $notice, $other);
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}
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// Handling a Delete Note?
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if (ActivityUtils::compareVerbs($notice->verb, [ActivityVerb::DELETE])) {
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return $this->onStartDeleteOwnNotice($profile, $notice, $other);
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}
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} catch (Exception $e) {
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// Postman handles issues with the failed queue
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common_debug('ActivityPub Queue Handler:'.$e->getMessage());
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}
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return true;
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}
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private function handle_create($profile, $notice, $other)
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{
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// Handling a reply?
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if ($notice->reply_to) {
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try {
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$parent_notice = $notice->getParent();
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try {
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$other[] = Activitypub_profile::from_profile($parent_notice->getProfile());
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} catch (Exception $e) {
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// Local user can be ignored
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}
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foreach ($parent_notice->getAttentionProfiles() as $mention) {
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try {
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$other[] = Activitypub_profile::from_profile($mention);
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} catch (Exception $e) {
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// Local user can be ignored
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}
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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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} catch (NoResultException $e) {
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// Parent author's profile not found! Complain louder?
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common_log(
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LOG_ERR,
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"Parent notice's author not found: " . $e->getMessage()
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);
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}
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}
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// Handling an Announce?
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if ($notice->isRepeat()) {
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$repeated_notice = Notice::getKV('id', $notice->repeat_of);
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if ($repeated_notice instanceof Notice) {
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$other = array_merge(
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$other,
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Activitypub_profile::from_profile_collection(
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$repeated_notice->getAttentionProfiles()
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)
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);
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try {
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$other[] = Activitypub_profile::from_profile(
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$repeated_notice->getProfile()
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);
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} catch (Exception $e) {
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// Local user can be ignored
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}
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// That was it
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$postman = new Activitypub_postman($profile, $other);
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$postman->announce($notice, $repeated_notice);
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}
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// either made the announce or found nothing to repeat
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return true;
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}
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// That was it
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$postman = new Activitypub_postman($profile, $other);
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$postman->create_note($notice);
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return true;
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}
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/**
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* Notify remote users when their notices get favourited.
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*
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* @param Profile $profile of local user doing the faving
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* @param Notice $notice_liked Notice being favored
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* @return bool return value
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* @throws HTTP_Request2_Exception
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* @throws InvalidUrlException
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* @author Diogo Cordeiro <diogo@fc.up.pt>
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*/
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public function onEndFavorNotice(Profile $profile, Notice $notice, $other)
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{
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$notice_liked = $notice->getParent();
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if ($notice_liked->reply_to) {
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try {
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$parent_notice = $notice_liked->getParent();
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try {
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$other[] = Activitypub_profile::from_profile($parent_notice->getProfile());
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} catch (Exception $e) {
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// Local user can be ignored
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}
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$other = array_merge(
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$other,
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Activitypub_profile::from_profile_collection(
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$parent_notice->getAttentionProfiles()
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)
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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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} catch (NoResultException $e) {
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// Parent author's profile not found! Complain louder?
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common_log(LOG_ERR, "Parent notice's author not found: " . $e->getMessage());
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}
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}
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$postman = new Activitypub_postman($profile, $other);
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$postman->like($notice);
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return true;
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}
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/**
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* Notify remote users when their notices get deleted
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*
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* @param $user
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* @param $notice
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* @return bool hook flag
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* @throws HTTP_Request2_Exception
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* @throws InvalidUrlException
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* @author Diogo Cordeiro <diogo@fc.up.pt>
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*/
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public function onStartDeleteOwnNotice($profile, $notice, $other)
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{
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// Handle delete locally either because:
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// 1. There's no undo-share logic yet
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// 2. The deleting user has privileges to do so (locally)
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if ($notice->isRepeat() || ($notice->getProfile()->getID() != $profile->getID())) {
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return true;
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}
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if ($notice->reply_to) {
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try {
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$parent_notice = $notice->getParent();
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try {
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$other[] = Activitypub_profile::from_profile($parent_notice->getProfile());
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} catch (Exception $e) {
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// Local user can be ignored
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}
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$other = array_merge(
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$other,
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Activitypub_profile::from_profile_collection(
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$parent_notice->getAttentionProfiles()
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)
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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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} catch (NoResultException $e) {
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// Parent author's profile not found! Complain louder?
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common_log(LOG_ERR, "Parent notice's author not found: " . $e->getMessage());
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}
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}
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$postman = new Activitypub_postman($profile, $other);
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$postman->delete_note($notice);
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return true;
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}
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}
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