MwlogHandler.php

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<?php
namespace MediaWiki\Logger\Monolog;
 
use Monolog\Handler\SyslogUdpHandler;
use Monolog\Logger;
 
class MwlogHandler extends SyslogUdpHandler {
 
    private $appprefix;
 
    private $hostname;
 
    public function __construct(
        $appprefix,
        $host,
        $port = 514,
        $facility = LOG_USER,
        $level = Logger::DEBUG,
        $bubble = true
    ) {
        parent::__construct( $host, $port, $facility, $level, $bubble );
        $this->appprefix = $appprefix;
        $this->hostname = php_uname( 'n' );
    }
 
    protected function syslogHeader( $severity, $app ) {
        $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} {$this->hostname} {$app}: ";
    }
 
    private function splitMessageIntoLines( $message ): array {
        if ( is_array( $message ) ) {
            $message = implode( "\n", $message );
        }
 
        return preg_split( '/$\R?^/m', (string)$message, -1, PREG_SPLIT_NO_EMPTY );
    }
 
    protected function write( array $record ) {
        $lines = $this->splitMessageIntoLines( $record['formatted'] );
        $header = $this->syslogHeader(
            $this->logLevels[$record['level']],
            $this->appprefix . $record['channel'] );
 
        foreach ( $lines as $line ) {
            $this->socket->write( $line, $header );
        }
    }
}