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<?php
/**
* SPDX-FileCopyrightText: 2018 Nextcloud GmbH and Nextcloud contributors
* SPDX-License-Identifier: AGPL-3.0-or-later
*/
namespace OC\Log;
use OC\SystemConfig;
use OCP\HintException;
use OCP\ILogger;
use OCP\Log\IWriter;
// The following fields are understood by systemd/journald, see
// man systemd.journal-fields. All are optional:
// MESSAGE=
// The human-readable message string for this entry.
// MESSAGE_ID=
// A 128-bit message identifier ID
// PRIORITY=
// A priority value between 0 ("emerg") and 7 ("debug")
// CODE_FILE=, CODE_LINE=, CODE_FUNC=
// The code location generating this message, if known
// ERRNO=
// The low-level Unix error number causing this entry, if any.
// SYSLOG_FACILITY=, SYSLOG_IDENTIFIER=, SYSLOG_PID=
// Syslog compatibility fields
class Systemdlog extends LogDetails implements IWriter {
protected array $levels = [
ILogger::DEBUG => 7,
ILogger::INFO => 6,
ILogger::WARN => 4,
ILogger::ERROR => 3,
ILogger::FATAL => 2,
];
protected string $syslogId;
public function __construct(
SystemConfig $config,
?string $tag = null,
) {
parent::__construct($config);
if (!function_exists('sd_journal_send')) {
throw new HintException(
'PHP extension php-systemd is not available.',
'Please install and enable PHP extension systemd if you wish to log to the Systemd journal.');
}
if ($tag === null) {
$tag = $config->getValue('syslog_tag', 'Nextcloud');
}
$this->syslogId = $tag;
}
/**
* Write a message to the log.
* @param string|array $message
*/
public function write(string $app, $message, int $level): void {
$journal_level = $this->levels[$level];
sd_journal_send('PRIORITY=' . $journal_level,
'SYSLOG_IDENTIFIER=' . $this->syslogId,
'MESSAGE=' . $this->logDetailsAsJSON($app, $message, $level));
}
}
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