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<?php
/**
* @package akeebabackup
* @copyright Copyright (c)2006-2022 Nicholas K. Dionysopoulos / Akeeba Ltd
* @license GNU General Public License version 3, or later
*/
namespace Akeeba\Alice\Check\Runtimeerrors;
use Akeeba\Alice\Check\Base;
use Exception;
use Joomla\CMS\Language\Text as JText;
/**
* Checks that every page load is not hitting the timeout limit.
* Time diff is performed against the "Start step" and "Saving Kettenrad" timestamps.
*
* TODO This needs to be rewritten. It makes no sense. A backup CAN NOT POSSIBLY take longer than PHP's time limit!
*/
class Timeout extends Base
{
public function __construct($logFile = null)
{
$this->priority = 20;
$this->checkLanguageKey = 'COM_AKEEBA_ALICE_ANALYZE_RUNTIME_ERRORS_TIMEOUT';
parent::__construct($logFile);
}
public function check()
{
$starting = [];
$saving = [];
$isCli = false;
$this->scanLines(function ($data) use (&$starting, &$saving, &$isCli) {
if (preg_match('/PHP SAPI\s{1,}:\s*cli/', $data) == 1)
{
// This is CLI backup.
$isCli = true;
}
preg_match_all('#(\d{6}\s\d{2}:\d{2}:\d{2})\|.*?Starting Step number#i', $data, $tmp_matches);
if (isset($tmp_matches[1]))
{
$starting = array_merge($starting, $tmp_matches[1]);
}
preg_match_all('#(\d{6}\s\d{2}:\d{2}:\d{2})\|.*?Finished Step number#i', $data, $tmp_matches);
if (isset($tmp_matches[1]))
{
$saving = array_merge($saving, $tmp_matches[1]);
}
});
// If there is an issue with starting and saving instances, I can't go on, first of all fix that
if (count($saving) != count($starting))
{
$this->setResult(-1);
$this->setErrorLanguageKey([
'COM_AKEEBA_ALICE_ANALYZE_RUNTIME_ERRORS_TIMEOUT_KETTENRAD_BROKEN',
]);
return;
}
$temp = [];
// Let's expand the date part so I can safely work with that strings
foreach ($starting as $item)
{
$temp[] = '20' . substr($item, 0, 2) . '-' . substr($item, 2, 2) . '-' . substr($item, 4, 2) . substr($item, 6);
}
$starting = $temp;
$temp = [];
// Let's expand the date part so I can safely work with that strings
foreach ($saving as $item)
{
$temp[] = '20' . substr($item, 0, 2) . '-' . substr($item, 2, 2) . '-' . substr($item, 4, 2) . substr($item, 6);
}
$saving = $temp;
$maxExecution = $this->detectMaxExec($isCli);
/**
* If I detected a CLI backup without a max execution time limit (THIS IS THE ONLY WAY, PER PHP'S DOCUMENTATION)
* I immediately quit since we can't possibly time out.
*/
if ($maxExecution == -1)
{
return;
}
// Ok, did I have any timeout between the start and saving step (ie page loads)?
for ($i = 0; $i < count($starting); $i++)
{
$duration = strtotime($saving[$i]) - strtotime($starting[$i]);
if ($duration > $maxExecution)
{
$this->setResult(-1);
$this->setErrorLanguageKey([
'COM_AKEEBA_ALICE_ANALYZE_RUNTIME_ERRORS_TIMEOUT_MAX_EXECUTION', $duration,
]);
return;
}
}
}
public function getSolution()
{
return JText::_('COM_AKEEBA_ALICE_ANALYZE_RUNTIME_ERRORS_TIMEOUT_SOLUTION');
}
/**
* Detects max execution time, reading backup log. If the maximum execution time is set to 0 or it's bigger
* than 100, it gets the default value of 100.
*
* @return int
* @throws Exception
*/
private function detectMaxExec($isCli = false)
{
$time = 0;
$this->scanLines(function ($line) use (&$time) {
$pos = stripos($line, '|Max. exec. time');
if ($pos === false)
{
return;
}
$time = (int) trim(substr($line, strpos($line, ':', $pos) + 1));
});
/**
* CLI backups.
* Negative, zero or no detected time: we return -1 (no limit).
*/
$time = ($time <= 0) ? -1 : $time;
/**
* Over a web server backups.
* Negative, zero or no detected time: we consider it to be 100 seconds.
* Values over 100 seconds: we cap the to 100 seconds.
*
* The time limit cap has to do with Apache's internal timeout.
*/
$time = ($time <= 0) ? 100 : min($time, 100);
return $time;
}
}