SyslogWriter.php

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<?php
 
/*
 * This file is part of the TYPO3 CMS project.
 *
 * It is free software; you can redistribute it and/or modify it under
 * the terms of the GNU General Public License, either version 2
 * of the License, or any later version.
 *
 * For the full copyright and license information, please read the
 * LICENSE.txt file that was distributed with this source code.
 *
 * The TYPO3 project - inspiring people to share!
 */
 
namespace ‪TYPO3\CMS\Core\Log\Writer;
 
use ‪TYPO3\CMS\Core\Log\LogLevel;
use ‪TYPO3\CMS\Core\Log\LogRecord;
 
class ‪SyslogWriter extends ‪AbstractWriter
{
    private $facilities = [
        'auth' => LOG_AUTH,
        'authpriv' => LOG_AUTHPRIV,
        'cron' => LOG_CRON,
        'daemon' => LOG_DAEMON,
        'kern' => LOG_KERN,
        'lpr' => LOG_LPR,
        'mail' => LOG_MAIL,
        'news' => LOG_NEWS,
        'syslog' => LOG_SYSLOG,
        'user' => LOG_USER,
        'uucp' => LOG_UUCP,
    ];
 
    protected $facility = LOG_USER;
 
    public function ‪__construct(array $options = [])
    {
        // additional facilities for *nix environments
        if (!defined('PHP_WINDOWS_VERSION_BUILD')) {
            $this->‪facilities['local0'] = LOG_LOCAL0;
            $this->‪facilities['local1'] = LOG_LOCAL1;
            $this->‪facilities['local2'] = LOG_LOCAL2;
            $this->‪facilities['local3'] = LOG_LOCAL3;
            $this->‪facilities['local4'] = LOG_LOCAL4;
            $this->‪facilities['local5'] = LOG_LOCAL5;
            $this->‪facilities['local6'] = LOG_LOCAL6;
            $this->‪facilities['local7'] = LOG_LOCAL7;
        }
        parent::__construct($options);
        if (!openlog('TYPO3', LOG_ODELAY | LOG_PID, $this->facility)) {
            $facilityName = array_search($this->facility, $this->‪facilities);
            throw new \RuntimeException('Could not open syslog for facility ' . $facilityName, 1321722682);
        }
    }
 
    public function ‪__destruct()
    {
        closelog();
    }
 
    public function ‪setFacility($facility): void
    {
        if (array_key_exists(strtolower($facility), $this->‪facilities)) {
            $this->facility = $this->‪facilities[strtolower($facility)];
        }
    }
 
    public function ‪getMessageForSyslog(LogRecord $record): string
    {
        $data = '';
        $context = $record->getData();
        $message = $record->getMessage();
        if (!empty($context)) {
            // Fold an exception into the message, and string-ify it into context so it can be jsonified.
            if (isset($context['exception']) && $context['exception'] instanceof \Throwable) {
                $message .= $this->‪formatException($context['exception']);
                $context['exception'] = (string)$context['exception'];
            }
            $data = '- ' . json_encode($context);
        }
 
        return sprintf(
            '[request="%s" component="%s"] %s %s',
            $record->getRequestId(),
            $record->getComponent(),
            $this->interpolate($message, $context),
            $data
        );
    }
 
    public function ‪writeLog(LogRecord $record)
    {
        if (syslog(‪LogLevel::normalizeLevel($record->getLevel()), $this->getMessageForSyslog($record)) === false) {
            throw new \RuntimeException('Could not write log record to syslog', 1345036337);
        }
        return $this;
    }
}