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[autoinstallsdev/mediawiki.git] / vendor / monolog / monolog / src / Monolog / Formatter / GelfMessageFormatter.php

diff --git a/vendor/monolog/monolog/src/Monolog/Formatter/GelfMessageFormatter.php b/vendor/monolog/monolog/src/Monolog/Formatter/GelfMessageFormatter.php
new file mode 100644 (file)
index 0000000..64e7665
--- /dev/null
+++ b/vendor/monolog/monolog/src/Monolog/Formatter/GelfMessageFormatter.php
@@ -0,0 +1,137 @@
+<?php
+
+/*
+ * This file is part of the Monolog package.
+ *
+ * (c) Jordi Boggiano <j.boggiano@seld.be>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Monolog\Formatter;
+
+use Monolog\Logger;
+use Gelf\Message;
+
+/**
+ * Serializes a log message to GELF
+ * @see http://www.graylog2.org/about/gelf
+ *
+ * @author Matt Lehner <mlehner@gmail.com>
+ */
+class GelfMessageFormatter extends NormalizerFormatter
+{
+    const MAX_LENGTH = 32766;
+
+    /**
+     * @var string the name of the system for the Gelf log message
+     */
+    protected $systemName;
+
+    /**
+     * @var string a prefix for 'extra' fields from the Monolog record (optional)
+     */
+    protected $extraPrefix;
+
+    /**
+     * @var string a prefix for 'context' fields from the Monolog record (optional)
+     */
+    protected $contextPrefix;
+
+    /**
+     * Translates Monolog log levels to Graylog2 log priorities.
+     */
+    private $logLevels = array(
+        Logger::DEBUG     => 7,
+        Logger::INFO      => 6,
+        Logger::NOTICE    => 5,
+        Logger::WARNING   => 4,
+        Logger::ERROR     => 3,
+        Logger::CRITICAL  => 2,
+        Logger::ALERT     => 1,
+        Logger::EMERGENCY => 0,
+    );
+
+    public function __construct($systemName = null, $extraPrefix = null, $contextPrefix = 'ctxt_')
+    {
+        parent::__construct('U.u');
+
+        $this->systemName = $systemName ?: gethostname();
+
+        $this->extraPrefix = $extraPrefix;
+        $this->contextPrefix = $contextPrefix;
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function format(array $record)
+    {
+        $record = parent::format($record);
+
+        if (!isset($record['datetime'], $record['message'], $record['level'])) {
+            throw new \InvalidArgumentException('The record should at least contain datetime, message and level keys, '.var_export($record, true).' given');
+        }
+
+        $message = new Message();
+        $message
+            ->setTimestamp($record['datetime'])
+            ->setShortMessage((string) $record['message'])
+            ->setHost($this->systemName)
+            ->setLevel($this->logLevels[$record['level']]);
+
+        // start count with message length + system name length + 200 for padding / metadata
+        $len = 200 + strlen((string) $record['message']) + strlen($this->systemName);
+
+        if ($len > self::MAX_LENGTH) {
+            $message->setShortMessage(substr($record['message'], 0, self::MAX_LENGTH - 200));
+
+            return $message;
+        }
+
+        if (isset($record['channel'])) {
+            $message->setFacility($record['channel']);
+            $len += strlen($record['channel']);
+        }
+        if (isset($record['extra']['line'])) {
+            $message->setLine($record['extra']['line']);
+            $len += 10;
+            unset($record['extra']['line']);
+        }
+        if (isset($record['extra']['file'])) {
+            $message->setFile($record['extra']['file']);
+            $len += strlen($record['extra']['file']);
+            unset($record['extra']['file']);
+        }
+
+        foreach ($record['extra'] as $key => $val) {
+            $val = is_scalar($val) || null === $val ? $val : $this->toJson($val);
+            $len += strlen($this->extraPrefix . $key . $val);
+            if ($len > self::MAX_LENGTH) {
+                $message->setAdditional($this->extraPrefix . $key, substr($val, 0, self::MAX_LENGTH - $len));
+                break;
+            }
+            $message->setAdditional($this->extraPrefix . $key, $val);
+        }
+
+        foreach ($record['context'] as $key => $val) {
+            $val = is_scalar($val) || null === $val ? $val : $this->toJson($val);
+            $len += strlen($this->contextPrefix . $key . $val);
+            if ($len > self::MAX_LENGTH) {
+                $message->setAdditional($this->contextPrefix . $key, substr($val, 0, self::MAX_LENGTH - $len));
+                break;
+            }
+            $message->setAdditional($this->contextPrefix . $key, $val);
+        }
+
+        if (null === $message->getFile() && isset($record['context']['exception']['file'])) {
+            if (preg_match("/^(.+):([0-9]+)$/", $record['context']['exception']['file'], $matches)) {
+                $message->setFile($matches[1]);
+                $message->setLine($matches[2]);
+            }
+        }
+
+        return $message;
+    }
+}