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vendor/yiisoft/yii2/log/SyslogTarget.php

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+<?php
+/**
+ * @link http://www.yiiframework.com/
+ * @copyright Copyright (c) 2008 Yii Software LLC
+ * @license http://www.yiiframework.com/license/
+ */
+
+namespace yii\log;
+
+use Yii;
+use yii\helpers\VarDumper;
+
+/**
+ * SyslogTarget writes log to syslog.
+ *
+ * @author miramir <gmiramir@gmail.com>
+ * @since 2.0
+ */
+class SyslogTarget extends Target
+{
+    /**
+     * @var string syslog identity
+     */
+    public $identity;
+    /**
+     * @var int syslog facility.
+     */
+    public $facility = LOG_USER;
+    /**
+     * @var int openlog options. This is a bitfield passed as the `$option` parameter to [openlog()](http://php.net/openlog).
+     * Defaults to `null` which means to use the default options `LOG_ODELAY | LOG_PID`.
+     * @see http://php.net/openlog for available options.
+     * @since 2.0.11
+     */
+    public $options;
+
+    /**
+     * @var array syslog levels
+     */
+    private $_syslogLevels = [
+        Logger::LEVEL_TRACE => LOG_DEBUG,
+        Logger::LEVEL_PROFILE_BEGIN => LOG_DEBUG,
+        Logger::LEVEL_PROFILE_END => LOG_DEBUG,
+        Logger::LEVEL_PROFILE => LOG_DEBUG,
+        Logger::LEVEL_INFO => LOG_INFO,
+        Logger::LEVEL_WARNING => LOG_WARNING,
+        Logger::LEVEL_ERROR => LOG_ERR,
+    ];
+
+
+    /**
+     * {@inheritdoc}
+     */
+    public function init()
+    {
+        parent::init();
+        if ($this->options === null) {
+            $this->options = LOG_ODELAY | LOG_PID;
+        }
+    }
+
+    /**
+     * Writes log messages to syslog.
+     * Starting from version 2.0.14, this method throws LogRuntimeException in case the log can not be exported.
+     * @throws LogRuntimeException
+     */
+    public function export()
+    {
+        openlog($this->identity, $this->options, $this->facility);
+        foreach ($this->messages as $message) {
+            if (syslog($this->_syslogLevels[$message[1]], $this->formatMessage($message)) === false) {
+                throw new LogRuntimeException('Unable to export log through system log!');
+            }
+        }
+        closelog();
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function formatMessage($message)
+    {
+        list($text, $level, $category, $timestamp) = $message;
+        $level = Logger::getLevelName($level);
+        if (!is_string($text)) {
+            // exceptions may not be serializable if in the call stack somewhere is a Closure
+            if ($text instanceof \Throwable || $text instanceof \Exception) {
+                $text = (string) $text;
+            } else {
+                $text = VarDumper::export($text);
+            }
+        }
+
+        $prefix = $this->getMessagePrefix($message);
+        return "{$prefix}[$level][$category] $text";
+    }
+}