Friendica Communications Platform (please note that this is a clone of the repository at github, issues are handled there) https://friendi.ca
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<?php
/**
* @file src/Model/Queue.php
*/
namespace Friendica\Model;
use Friendica\Core\Config;
use Friendica\Core\Logger;
use Friendica\Database\DBA;
use Friendica\Util\DateTimeFormat;
require_once 'include/dba.php';
class Queue
{
/**
* @param string $id id
*/
public static function updateTime($id)
{
Logger::log('queue: requeue item ' . $id);
$queue = DBA::selectFirst('queue', ['retrial'], ['id' => $id]);
if (!DBA::isResult($queue)) {
return;
}
$retrial = $queue['retrial'];
if ($retrial > 14) {
self::removeItem($id);
}
// Calculate the delay until the next trial
$delay = (($retrial + 3) ** 4) + (rand(1, 30) * ($retrial + 1));
$next = DateTimeFormat::utc('now + ' . $delay . ' seconds');
DBA::update('queue', ['last' => DateTimeFormat::utcNow(), 'retrial' => $retrial + 1, 'next' => $next], ['id' => $id]);
}
/**
* @param string $id id
*/
public static function removeItem($id)
{
Logger::log('queue: remove queue item ' . $id);
DBA::delete('queue', ['id' => $id]);
}
/**
* @brief Checks if the communication with a given contact had problems recently
*
* @param int $cid Contact id
*
* @return bool The communication with this contact has currently problems
*/
public static function wasDelayed($cid)
{
// Are there queue entries that were recently added?
$r = q("SELECT `id` FROM `queue` WHERE `cid` = %d
AND `last` > UTC_TIMESTAMP() - INTERVAL 15 MINUTE LIMIT 1",
intval($cid)
);
$was_delayed = DBA::isResult($r);
// We set "term-date" to a current date if the communication has problems.
// If the communication works again we reset this value.
if ($was_delayed) {
$r = q("SELECT `term-date` FROM `contact` WHERE `id` = %d AND `term-date` <= '1000-01-01' LIMIT 1",
intval($cid)
);
$was_delayed = !DBA::isResult($r);
}
return $was_delayed;
}
/**
* @param string $cid cid
* @param string $network network
* @param string $msg message
* @param boolean $batch batch, default false
*/
public static function add($cid, $network, $msg, $batch = false, $guid = '')
{
$max_queue = Config::get('system', 'max_contact_queue');
if ($max_queue < 1) {
$max_queue = 500;
}
$batch_queue = Config::get('system', 'max_batch_queue');
if ($batch_queue < 1) {
$batch_queue = 1000;
}
$r = q("SELECT COUNT(*) AS `total` FROM `queue` INNER JOIN `contact` ON `queue`.`cid` = `contact`.`id`
WHERE `queue`.`cid` = %d AND `contact`.`self` = 0 ",
intval($cid)
);
if (DBA::isResult($r)) {
if ($batch && ($r[0]['total'] > $batch_queue)) {
Logger::log('too many queued items for batch server ' . $cid . ' - discarding message');
return;
} elseif ((! $batch) && ($r[0]['total'] > $max_queue)) {
Logger::log('too many queued items for contact ' . $cid . ' - discarding message');
return;
}
}
DBA::insert('queue', [
'cid' => $cid,
'network' => $network,
'guid' => $guid,
'created' => DateTimeFormat::utcNow(),
'last' => DateTimeFormat::utcNow(),
'content' => $msg,
'batch' =>($batch) ? 1 : 0
]);
Logger::log('Added item ' . $guid . ' for ' . $cid);
}
}