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149 lines
4.5 KiB
149 lines
4.5 KiB
<?php
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/**
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* CakePHP(tm) : Rapid Development Framework (https://cakephp.org)
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* Copyright (c) Cake Software Foundation, Inc. (https://cakefoundation.org)
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*
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* Licensed under The MIT License
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* For full copyright and license information, please see the LICENSE.txt
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* Redistributions of files must retain the above copyright notice.
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*
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* @copyright Copyright (c) Cake Software Foundation, Inc. (https://cakefoundation.org)
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* @link https://cakefoundation.org CakePHP(tm) Project
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* @since 2.4.0
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* @license https://opensource.org/licenses/mit-license.php MIT License
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*/
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namespace Cake\Log\Engine;
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/**
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* Syslog stream for Logging. Writes logs to the system logger
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*/
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class SyslogLog extends BaseLog
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{
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/**
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* Default config for this class
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*
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* By default messages are formatted as:
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* level: message
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*
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* To override the log format (e.g. to add your own info) define the format key when configuring
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* this logger
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*
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* If you wish to include a prefix to all messages, for instance to identify the
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* application or the web server, then use the prefix option. Please keep in mind
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* the prefix is shared by all streams using syslog, as it is dependent of
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* the running process. For a local prefix, to be used only by one stream, you
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* can use the format key.
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*
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* ### Example:
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*
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* ```
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* Log::config('error', ]
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* 'engine' => 'Syslog',
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* 'levels' => ['emergency', 'alert', 'critical', 'error'],
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* 'format' => "%s: My-App - %s",
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* 'prefix' => 'Web Server 01'
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* ]);
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* ```
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*
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* @var array
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*/
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protected $_defaultConfig = [
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'levels' => [],
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'scopes' => [],
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'format' => '%s: %s',
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'flag' => LOG_ODELAY,
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'prefix' => '',
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'facility' => LOG_USER,
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];
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/**
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* Used to map the string names back to their LOG_* constants
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*
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* @var int[]
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*/
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protected $_levelMap = [
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'emergency' => LOG_EMERG,
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'alert' => LOG_ALERT,
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'critical' => LOG_CRIT,
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'error' => LOG_ERR,
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'warning' => LOG_WARNING,
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'notice' => LOG_NOTICE,
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'info' => LOG_INFO,
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'debug' => LOG_DEBUG,
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];
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/**
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* Whether the logger connection is open or not
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*
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* @var bool
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*/
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protected $_open = false;
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/**
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* Writes a message to syslog
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*
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* Map the $level back to a LOG_ constant value, split multi-line messages into multiple
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* log messages, pass all messages through the format defined in the configuration
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*
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* @param string $level The severity level of log you are making.
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* @param string $message The message you want to log.
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* @param array $context Additional information about the logged message
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* @return bool success of write.
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*/
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public function log($level, $message, array $context = [])
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{
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if (!$this->_open) {
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$config = $this->_config;
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$this->_open($config['prefix'], $config['flag'], $config['facility']);
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$this->_open = true;
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}
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$priority = LOG_DEBUG;
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if (isset($this->_levelMap[$level])) {
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$priority = $this->_levelMap[$level];
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}
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$messages = explode("\n", $this->_format($message, $context));
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foreach ($messages as $message) {
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$message = sprintf($this->_config['format'], $level, $message);
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$this->_write($priority, $message);
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}
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return true;
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}
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/**
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* Extracts the call to openlog() in order to run unit tests on it. This function
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* will initialize the connection to the system logger
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*
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* @param string $ident the prefix to add to all messages logged
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* @param int $options the options flags to be used for logged messages
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* @param int $facility the stream or facility to log to
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* @return void
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*/
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protected function _open($ident, $options, $facility)
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{
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openlog($ident, $options, $facility);
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}
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/**
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* Extracts the call to syslog() in order to run unit tests on it. This function
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* will perform the actual write in the system logger
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*
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* @param int $priority Message priority.
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* @param string $message Message to log.
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* @return bool
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*/
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protected function _write($priority, $message)
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{
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return syslog($priority, $message);
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}
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/**
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* Closes the logger connection
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*/
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public function __destruct()
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{
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closelog();
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}
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}
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