hook_cron.php

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<?php
function statistics_hook_cron(&$croninfo)
{
    assert('is_array($croninfo)');
    assert('array_key_exists("summary", $croninfo)');
    assert('array_key_exists("tag", $croninfo)');

    $statconfig = SimpleSAML_Configuration::getConfig('module_statistics.php');
        
    if (is_null($statconfig->getValue('cron_tag', null))) {
        return;
    }
    if ($statconfig->getValue('cron_tag', null) !== $croninfo['tag']) {
        return;
    }
        
    $maxtime = $statconfig->getInteger('time_limit', null);
    if ($maxtime) {
        set_time_limit($maxtime);
    }
        
    try {
        $aggregator = new sspmod_statistics_Aggregator();
        $results = $aggregator->aggregate();
        if (empty($results)) {
            SimpleSAML\Logger::notice('Output from statistics aggregator was empty.');
        } else {
            $aggregator->store($results);
        }
    } catch (Exception $e) {
        $message = 'Loganalyzer threw exception: ' . $e->getMessage();
        SimpleSAML\Logger::warning($message);
        $croninfo['summary'][] = $message;
    }
}