forked from GNUsocial/gnu-social
86 lines
3.1 KiB
PHP
86 lines
3.1 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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* Store last poll time in db, then check if they should be renewed (if so, enqueue).
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* Can be called from a queue handler on a per-feed status to poll stuff.
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*
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* Used as internal feed polling mechanism (atom/rss)
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*
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* @category OStatus
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* @package GNUsocial
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* @author Mikael Nordfeldth <mmn@hethane.se>
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* @copyright 2015 Free Software Foundation http://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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class FeedPoll
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{
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const DEFAULT_INTERVAL = 5; // in minutes
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const QUEUE_CHECK = 'feedpoll-check';
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// TODO: Find some smart way to add feeds only once, so they don't get more than 1 feedpoll in the queue each
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// probably through sub_start sub_end trickery.
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public static function enqueueNewFeeds(array $args = [])
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{
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if (!isset($args['interval']) || !is_int($args['interval']) || $args['interval']<=0) {
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$args['interval'] = self::DEFAULT_INTERVAL;
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}
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$feedsub = new FeedSub();
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$feedsub->sub_state = 'nohub';
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// Find feeds that haven't been polled within the desired interval,
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// though perhaps we're abusing the "last_update" field here?
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$feedsub->whereAdd(sprintf(
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"last_update < CURRENT_TIMESTAMP - INTERVAL '%d' MINUTE",
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$args['interval']
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));
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$feedsub->find();
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$qm = QueueManager::get();
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while ($feedsub->fetch()) {
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$orig = clone($feedsub);
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$item = array('id' => $feedsub->id);
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$qm->enqueue($item, self::QUEUE_CHECK);
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$feedsub->last_update = common_sql_now();
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$feedsub->update($orig);
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}
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}
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public function setupFeedSub(FeedSub $feedsub, $interval=300)
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{
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$orig = clone($feedsub);
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$feedsub->sub_state = 'nohub';
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$feedsub->sub_start = common_sql_date(time());
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$feedsub->sub_end = '';
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$feedsub->last_update = common_sql_date(time()-$interval); // force polling as soon as we can
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$feedsub->update($orig);
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}
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public function checkUpdates(FeedSub $feedsub)
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{
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$request = new HTTPClient();
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$feed = $request->get($feedsub->uri);
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if (!$feed->isOk()) {
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throw new ServerException('FeedSub could not fetch id='.$feedsub->id.' (Error '.$feed->getStatus().': '.$feed->getBody());
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}
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$feedsub->receive($feed->getBody(), null);
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}
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}
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