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87 lines
2.8 KiB
87 lines
2.8 KiB
<?php
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/**
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* li₃: the most RAD framework for PHP (http://li3.me)
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*
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* Copyright 2009, Union of RAD. All rights reserved. This source
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* code is distributed under the terms of the BSD 3-Clause License.
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* The full license text can be found in the LICENSE.txt file.
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*/
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namespace lithium\analysis\logger\adapter;
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/**
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* The Syslog adapter facilitates logging messages to a `syslogd` backend. See the constructor for
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* information on configuring this adapter.
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*
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* @see lithium\analysis\logger\adapter\Syslog::__construct()
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*/
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class Syslog extends \lithium\core\ObjectDeprecated {
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/**
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* Flag indicating whether or not the connection to `syslogd` has been opened yet.
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*
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* @var boolean
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*/
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protected $_isConnected = false;
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/**
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* Array that maps `Logger` message priority names to `syslog`-compatible priority constants.
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*
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* @var array
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*/
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protected $_priorities = [
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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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* Constructor. Configures the `Syslog` adapter instance with the default settings. For
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* more information on these settings, see the documentation for tthe `openlog()` function.
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*
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* @link http://php.net/openlog
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* @param array $config Available configuration settings for this adapter:
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* - `'identity'` _string_: The identity string to be attached to each message in
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* the system log. This is usually a string that meaningfully identifies your
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* application. Defaults to `false`.
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* - `'options'` _integer_: The flags to use when opening the log. Defaults to
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* `LOG_ODELAY`.
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* - `'facility'` _integer_: A flag specifying the program to use to log the
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* messages. See the `openlog()` documentation for more information. Defaults to
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* `LOG_USER`.
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* @return void
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*/
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public function __construct(array $config = []) {
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$defaults = ['identity' => false, 'options' => LOG_ODELAY, 'facility' => LOG_USER];
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parent::__construct($config + $defaults);
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}
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/**
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* Appends `$message` to the system log.
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*
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* @param string $priority The message priority string. Maps to a `syslogd` priority constant.
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* @param string $message The message to write.
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* @return \Closure Function returning boolean `true` on successful write, `false` otherwise.
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*/
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public function write($priority, $message) {
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$config = $this->_config;
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if (!$this->_isConnected) {
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closelog();
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openlog($config['identity'], $config['options'], $config['facility']);
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$this->_isConnected = true;
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}
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return function($params) {
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$priority = $this->_priorities[$params['priority']];
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return syslog($priority, $params['message']);
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};
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}
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}
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?>
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