SyslogHandler.php

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<?php
namespace MediaWiki\Logger\Monolog;
 
use DateTimeInterface;
use Monolog\Handler\SyslogUdpHandler;
use Monolog\Logger;
 
class SyslogHandler extends SyslogUdpHandler {
 
    private string $appname;
    private string $hostname;
 
    public function __construct(
        $appname,
        $host,
        $port = 514,
        $facility = LOG_USER,
        $level = Logger::DEBUG,
        $bubble = true
    ) {
        parent::__construct( $host, $port, $facility, $level, $bubble );
        $this->appname = $appname;
        $this->hostname = php_uname( 'n' );
    }
 
    protected function makeCommonSyslogHeader( int $severity, DateTimeInterface $datetime ): string {
        $pri = $severity + $this->facility;
 
        // Goofy date format courtesy of RFC 3164 :(
        // RFC 3164 actually specifies that the day of month should be space
        // padded rather than unpadded but this seems to work with rsyslog and
        // Logstash.
        $timestamp = date( 'M j H:i:s' );
 
        return "<{$pri}>{$timestamp} {$this->hostname} {$this->appname}: ";
    }
}