friendica/src/Core/Logger/Factory/SyslogLogger.php

<?php
/**
 * @copyright Copyright (C) 2010-2023, the Friendica project
 *
 * @license GNU AGPL version 3 or any later version
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Affero General Public License as
 * published by the Free Software Foundation, either version 3 of the
 * License, or (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU Affero General Public License for more details.
 *
 * You should have received a copy of the GNU Affero General Public License
 * along with this program.  If not, see <https://www.gnu.org/licenses/>.
 *
 */

namespace Friendica\Core\Logger\Factory;

use Friendica\Core\Config\Capability\IManageConfigValues;
use Friendica\Core\Logger\Exception\LoggerException;
use Friendica\Core\Logger\Exception\LogLevelException;
use Friendica\Core\Logger\Type\SyslogLogger as SyslogLoggerClass;
use Psr\Log\LoggerInterface;

/**
 * The logger factory for the SyslogLogger instance
 *
 * @see SyslogLoggerClass
 */
class SyslogLogger extends AbstractLoggerTypeFactory
{
	/**
	 * Creates a new PSR-3 compliant syslog logger instance
	 *
	 * @param IManageConfigValues $config The system configuration
	 *
	 * @return LoggerInterface The PSR-3 compliant logger instance
	 *
	 * @throws LoggerException in case the logger cannot get created
	 */
	public function create(IManageConfigValues $config): LoggerInterface
	{
		$logOpts     = $config->get('system', 'syslog_flags')    ?? SyslogLoggerClass::DEFAULT_FLAGS;
		$logFacility = $config->get('system', 'syslog_facility') ?? SyslogLoggerClass::DEFAULT_FACILITY;
		$loglevel    = SyslogLogger::mapLegacyConfigDebugLevel($config->get('system', 'loglevel'));

		if (array_key_exists($loglevel, SyslogLoggerClass::logLevels)) {
			$loglevel = SyslogLoggerClass::logLevels[$loglevel];
		} else {
			throw new LogLevelException(sprintf('The level "%s" is not valid.', $loglevel));
		}

		return new SyslogLoggerClass($this->channel, $this->introspection, $loglevel, $logOpts, $logFacility);
	}
}