--- /dev/null
+<?php
+/**
+ * @copyright Copyright (C) 2010-2022, the Friendica project
+ *
+ * @license GNU AGPL version 3 or any later version
+ *
+ * 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 <https://www.gnu.org/licenses/>.
+ *
+ */
+
+namespace Friendica\Protocol\ActivityPub;
+
+use Friendica\Core\Logger;
+use Friendica\Database\Database;
+use Friendica\Database\DBA;
+use Friendica\Util\DateTimeFormat;
+
+/**
+ * This class handles the fetching of posts
+ */
+class Fetch
+{
+ public static function add(string $url): int
+ {
+ DBA::insert('fetch-entry', ['url' => $url, 'created' => DateTimeFormat::utcNow()], Database::INSERT_IGNORE);
+
+ $fetch = DBA::selectFirst('fetch-entry', ['id'], ['url' => $url]);
+ Logger::debug('Added fetch entry', ['url' => $url, 'fetch' => $fetch]);
+ return $fetch['id'] ?? 0;
+ }
+
+ /**
+ * Set the worker id for the queue entry
+ *
+ * @param array $activity
+ * @param int $wid
+ * @return void
+ */
+ public static function setWorkerId(string $url, int $wid)
+ {
+ if (empty($url) || empty($wid)) {
+ return;
+ }
+
+ DBA::update('fetch-entry', ['wid' => $wid], ['url' => $url]);
+ Logger::debug('Worker id set', ['url' => $url, 'wid' => $wid]);
+ }
+
+ /**
+ * Check if there is an assigned worker task
+ *
+ * @param array $activity
+ * @return bool
+ */
+ public static function hasWorker(string $url): bool
+ {
+ $fetch = DBA::selectFirst('fetch-entry', ['id', 'wid'], ['url' => $url]);
+ if (empty($fetch['id'])) {
+ Logger::debug('No entry found for url', ['url' => $url]);
+ return false;
+ }
+
+ // We don't have a workerqueue id yet. So most likely is isn't assigned yet.
+ // To avoid the ramping up of another fetch request we simply claim that there is a waiting worker.
+ if (!empty($fetch['id']) && empty($fetch['wid'])) {
+ Logger::debug('Entry without worker found for url', ['url' => $url]);
+ return true;
+ }
+
+ return DBA::exists('workerqueue', ['id' => $fetch['wid'], 'done' => false]);
+ }
+
+}
if ($fetch_by_worker) {
Logger::notice('Fetching is done by worker.', ['parent' => $activity['reply-to-id'], 'recursion-depth' => $recursion_depth]);
$activity['recursion-depth'] = 0;
- $wid = Worker::add(PRIORITY_HIGH, 'FetchMissingActivity', $activity['reply-to-id'], $activity, '', Receiver::COMPLETION_AUTO);
- Queue::setWorkerId($activity, $wid);
+ if (!Fetch::hasWorker($activity['reply-to-id'])) {
+ Fetch::add($activity['reply-to-id']);
+ $wid = Worker::add(PRIORITY_HIGH, 'FetchMissingActivity', $activity['reply-to-id'], $activity, '', Receiver::COMPLETION_AUTO);
+ Fetch::setWorkerId($activity['reply-to-id'], $wid);
+ Queue::setWorkerId($activity, $wid);
+ } else {
+ Logger::debug('Activity is already in the fetching process', ['url' => $activity['reply-to-id']]);
+ }
if (!empty($conversation)) {
return [];
}
use Friendica\Database\DBA;
if (!defined('DB_UPDATE_VERSION')) {
- define('DB_UPDATE_VERSION', 1476);
+ define('DB_UPDATE_VERSION', 1477);
}
return [
"uri-id" => ["UNIQUE", "uri-id"],
]
],
+ "fetch-entry" => [
+ "comment" => "",
+ "fields" => [
+ "id" => ["type" => "int unsigned", "not null" => "1", "extra" => "auto_increment", "primary" => "1", "comment" => "sequential ID"],
+ "url" => ["type" => "varbinary(255)", "comment" => "url that awaiting to be fetched"],
+ "created" => ["type" => "datetime", "not null" => "1", "default" => DBA::NULL_DATETIME, "comment" => "Creation date of the fetch request"],
+ "wid" => ["type" => "int unsigned", "foreign" => ["workerqueue" => "id"], "comment" => "Workerqueue id"], ],
+ "indexes" => [
+ "PRIMARY" => ["id"],
+ "url" => ["UNIQUE", "url"],
+ "created" => ["created"],
+ "wid" => ["wid"],
+ ]
+ ],
"fsuggest" => [
"comment" => "friend suggestion stuff",
"fields" => [