mirror of https://github.com/friendica/friendica
221 lines
7.5 KiB
PHP
221 lines
7.5 KiB
PHP
<?php
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/**
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* @copyright Copyright (C) 2010-2022, the Friendica project
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*
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* @license GNU AGPL version 3 or any later version
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU Affero General Public License as
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* published by the Free Software Foundation, either version 3 of the
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* License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Affero General Public License for more details.
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*
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* You should have received a copy of the GNU Affero General Public License
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* along with this program. If not, see <https://www.gnu.org/licenses/>.
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*
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*/
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namespace Friendica\Protocol\ActivityPub;
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use Friendica\Core\Logger;
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use Friendica\Database\DBA;
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use Friendica\DI;
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use Friendica\Model\Contact;
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use Friendica\Model\GServer;
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use Friendica\Model\Post;
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use Friendica\Protocol\ActivityPub;
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use Friendica\Util\HTTPSignature;
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use Friendica\Worker\Delivery as WorkerDelivery;
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class Delivery
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{
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/**
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* Deliver posts to the given inbox
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*
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* @param string $inbox
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* @return array with the elements "success" and "uri_ids" of the failed posts
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*/
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public static function deliver(string $inbox): array
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{
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$uri_ids = [];
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$posts = Post\Delivery::selectForInbox($inbox);
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$serverfail = false;
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foreach ($posts as $post) {
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if (!$serverfail) {
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$result = self::deliverToInbox($post['command'], 0, $inbox, $post['uid'], $post['receivers'], $post['uri-id']);
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if ($result['serverfailure']) {
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// In a timeout situation we assume that every delivery to that inbox will time out.
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// So we set the flag and try all deliveries at a later time.
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Logger::notice('Inbox delivery has a server failure', ['inbox' => $inbox]);
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$serverfail = true;
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}
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}
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if ($serverfail || (!$result['success'] && !$result['drop'])) {
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$uri_ids[] = $post['uri-id'];
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}
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}
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Logger::debug('Inbox delivery done', ['inbox' => $inbox, 'posts' => count($posts), 'failed' => count($uri_ids), 'serverfailure' => $serverfail]);
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return ['success' => empty($uri_ids), 'uri_ids' => $uri_ids];
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}
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/**
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* Deliver the given post to the given inbox
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*
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* @param string $cmd
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* @param integer $item_id
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* @param string $inbox
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* @param integer $uid
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* @param array $receivers
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* @param integer $uri_id
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* @return array
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*/
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public static function deliverToInbox(string $cmd, int $item_id, string $inbox, int $uid, array $receivers, int $uri_id): array
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{
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if (empty($item_id) && !empty($uri_id) && !empty($uid)) {
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$item = Post::selectFirst(['id', 'parent', 'origin'], ['uri-id' => $uri_id, 'uid' => [$uid, 0]], ['order' => ['uid' => true]]);
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if (empty($item['id'])) {
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Logger::warning('Item not found, removing delivery', ['uri-id' => $uri_id, 'uid' => $uid, 'cmd' => $cmd, 'inbox' => $inbox]);
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Post\Delivery::remove($uri_id, $inbox);
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return true;
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} else {
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$item_id = $item['id'];
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}
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}
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$success = true;
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$serverfail = false;
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$drop = false;
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if ($cmd == WorkerDelivery::MAIL) {
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$data = ActivityPub\Transmitter::createActivityFromMail($item_id);
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if (!empty($data)) {
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$success = HTTPSignature::transmit($data, $inbox, $uid);
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}
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} elseif ($cmd == WorkerDelivery::SUGGESTION) {
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$success = ActivityPub\Transmitter::sendContactSuggestion($uid, $inbox, $item_id);
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} elseif ($cmd == WorkerDelivery::RELOCATION) {
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// @todo Implementation pending
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} elseif ($cmd == WorkerDelivery::REMOVAL) {
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$success = ActivityPub\Transmitter::sendProfileDeletion($uid, $inbox);
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} elseif ($cmd == WorkerDelivery::PROFILEUPDATE) {
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$success = ActivityPub\Transmitter::sendProfileUpdate($uid, $inbox);
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} else {
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$data = ActivityPub\Transmitter::createCachedActivityFromItem($item_id);
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if (!empty($data)) {
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$timestamp = microtime(true);
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$response = HTTPSignature::post($data, $inbox, $uid);
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$runtime = microtime(true) - $timestamp;
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$success = $response->isSuccess();
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$serverfail = $response->isTimeout();
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if (!$success) {
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// 5xx errors are problems on the server. We don't need to continue delivery then.
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if (!$serverfail && ($response->getReturnCode() >= 500) && ($response->getReturnCode() <= 599)) {
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$serverfail = true;
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}
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// A 404 means that the inbox doesn't exist. We can stop the delivery here.
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if (!$serverfail && ($response->getReturnCode() == 404)) {
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$serverfail = true;
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}
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$xrd_timeout = DI::config()->get('system', 'xrd_timeout');
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if (!$serverfail && $xrd_timeout && ($runtime > $xrd_timeout)) {
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$serverfail = true;
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}
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$curl_timeout = DI::config()->get('system', 'curl_timeout');
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if (!$serverfail && $curl_timeout && ($runtime > $curl_timeout)) {
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$serverfail = true;
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}
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// Resubscribe to relay server upon client error
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if (!$serverfail && ($response->getReturnCode() >= 400) && ($response->getReturnCode() <= 499)) {
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$actor = self:: fetchActorForRelayInbox($inbox);
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if (!empty($actor)) {
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$drop = !ActivityPub\Transmitter::sendRelayFollow($actor);
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Logger::notice('Resubscribed to relay', ['url' => $actor, 'success' => !$drop]);
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} elseif ($cmd = WorkerDelivery::DELETION) {
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// Remote systems not always accept our deletion requests, so we drop them if rejected.
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// Situation is: In Friendica we allow the thread owner to delete foreign comments to their thread.
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// Most AP systems don't allow this, so they will reject the deletion request.
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$drop = true;
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}
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}
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Logger::notice('Delivery failed', ['retcode' => $response->getReturnCode(), 'serverfailure' => $serverfail, 'drop' => $drop, 'runtime' => round($runtime, 3), 'uri-id' => $uri_id, 'uid' => $uid, 'item_id' => $item_id, 'cmd' => $cmd, 'inbox' => $inbox]);
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}
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if ($uri_id) {
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if ($success) {
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Post\Delivery::remove($uri_id, $inbox);
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} else {
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Post\Delivery::incrementFailed($uri_id, $inbox);
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}
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}
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}
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}
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self::setSuccess($receivers, $success);
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Logger::debug('Delivered', ['uri-id' => $uri_id, 'uid' => $uid, 'item_id' => $item_id, 'cmd' => $cmd, 'inbox' => $inbox, 'success' => $success, 'serverfailure' => $serverfail, 'drop' => $drop]);
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if (($success || $drop) && in_array($cmd, [WorkerDelivery::POST])) {
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Post\DeliveryData::incrementQueueDone($uri_id, Post\DeliveryData::ACTIVITYPUB);
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}
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return ['success' => $success, 'serverfailure' => $serverfail, 'drop' => $drop];
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}
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/**
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* Fetch the actor of the given inbox of an relay server
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*
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* @param string $inbox
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* @return string
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*/
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private static function fetchActorForRelayInbox(string $inbox): string
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{
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$apcontact = DBA::selectFirst('apcontact', ['url'], ["`sharedinbox` = ? AND `type` = ? AND `url` IN (SELECT `url` FROM `contact` WHERE `uid` = ? AND `rel` = ?)",
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$inbox, 'Application', 0, Contact::FRIEND]);
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return $apcontact['url'] ?? '';
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}
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/**
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* mark or unmark the given receivers for archival upon succoess
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*
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* @param array $receivers
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* @param boolean $success
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* @return void
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*/
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private static function setSuccess(array $receivers, bool $success)
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{
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$gsid = null;
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foreach ($receivers as $receiver) {
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$contact = Contact::getById($receiver);
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if (empty($contact)) {
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continue;
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}
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$gsid = $gsid ?: $contact['gsid'];
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if ($success) {
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Contact::unmarkForArchival($contact);
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} else {
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Contact::markForArchival($contact);
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}
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}
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if (!empty($gsid)) {
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GServer::setProtocol($gsid, Post\DeliveryData::ACTIVITYPUB);
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}
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}
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}
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