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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 Joomla\CMS\Language\Text as JText;
/**
* Checks that the Kettenrad instance is not dead; the number of "Starting step" and "Saving Kettenrad" instance
* must be the same, plus none of the steps could be repeated (except the first one).
*/
class Kettenrad extends Base
{
public function __construct($logFile = null)
{
$this->priority = 10;
$this->checkLanguageKey = 'COM_AKEEBA_ALICE_ANALYZE_RUNTIME_ERRORS_KETTENRAD';
parent::__construct($logFile);
}
public function check()
{
$starting = [];
$saving = [];
$this->scanLines(function ($data) use (&$starting, &$saving) {
preg_match_all('#Starting Step number (\d+)#i', $data, $tmp_matches);
if (isset($tmp_matches[1]))
{
$starting = array_merge($starting, $tmp_matches[1]);
}
preg_match_all('#Finished Step number (\d+)#i', $data, $tmp_matches);
if (isset($tmp_matches[1]))
{
$saving = array_merge($saving, $tmp_matches[1]);
}
});
/**
* Check that none of "Starting step" number is repeated, EXCEPT for the first one (it's ok).
* That could happen when some poorly configured server processes the same request twice
*/
foreach ($starting as $stepNumber)
{
if ($stepNumber == 1)
{
continue;
}
/**
* Did a step run more than once?
*
* It is OK if it started multiple times but was only logged as finished once. This means it failed and the
* user took advantage of our retry-on-error feature for backend backups.
*
* However, if we see that it was logged as *finished* multiple times then it means that the same step ran
* multiple times in parallel. This is where the real problem is.
*/
if (count(array_keys($starting, $stepNumber)) > 1)
{
if (count(array_keys($saving, $stepNumber)) > 1)
{
$this->setResult(-1);
$this->setErrorLanguageKey([
'COM_AKEEBA_ALICE_ANALYZE_RUNTIME_ERRORS_KETTENRAD_STARTING_MORE_ONCE', $stepNumber,
]);
return;
}
}
}
}
public function getSolution()
{
return JText::_('COM_AKEEBA_ALICE_ANALYZE_RUNTIME_ERRORS_KETTENRAD_SOLUTION');
}
}