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Classes

  • BaseLog
  • ConsoleLog
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  • SyslogLog
  1: <?php
  2: /**
  3:  * Syslog logger engine for CakePHP
  4:  *
  5:  * CakePHP(tm) :  Rapid Development Framework (http://cakephp.org)
  6:  * Copyright (c) Cake Software Foundation, Inc. (http://cakefoundation.org)
  7:  *
  8:  * Licensed under The MIT License
  9:  * For full copyright and license information, please see the LICENSE.txt
 10:  * Redistributions of files must retain the above copyright notice.
 11:  *
 12:  * @copyright     Copyright (c) Cake Software Foundation, Inc. (http://cakefoundation.org)
 13:  * @link          http://www.cakefoundation.org/projects/info/cakephp CakePHP(tm) Project
 14:  * @package       Cake.Log.Engine
 15:  * @since         CakePHP(tm) v 2.4
 16:  * @license       http://www.opensource.org/licenses/mit-license.php MIT License
 17:  */
 18: 
 19: App::uses('BaseLog', 'Log/Engine');
 20: 
 21: /**
 22:  * Syslog stream for Logging. Writes logs to the system logger
 23:  *
 24:  * @package       Cake.Log.Engine
 25:  */
 26: class SyslogLog extends BaseLog {
 27: 
 28: /**
 29:  * By default messages are formatted as:
 30:  *  type: message
 31:  *
 32:  * To override the log format (e.g. to add your own info) define the format key when configuring
 33:  * this logger
 34:  *
 35:  * If you wish to include a prefix to all messages, for instance to identify the
 36:  * application or the web server, then use the prefix option. Please keep in mind
 37:  * the prefix is shared by all streams using syslog, as it is dependent of
 38:  * the running process. For a local prefix, to be used only by one stream, you
 39:  * can use the format key.
 40:  *
 41:  * ## Example:
 42:  *
 43:  * ```
 44:  *  CakeLog::config('error', array(
 45:  *      'engine' => 'Syslog',
 46:  *      'types' => array('emergency', 'alert', 'critical', 'error'),
 47:  *      'format' => "%s: My-App - %s",
 48:  *      'prefix' => 'Web Server 01'
 49:  *  ));
 50:  * ```
 51:  *
 52:  * @var array
 53:  */
 54:     protected $_defaults = array(
 55:         'format' => '%s: %s',
 56:         'flag' => LOG_ODELAY,
 57:         'prefix' => '',
 58:         'facility' => LOG_USER
 59:     );
 60: 
 61: /**
 62:  * Used to map the string names back to their LOG_* constants
 63:  *
 64:  * @var array
 65:  */
 66:     protected $_priorityMap = array(
 67:         'emergency' => LOG_EMERG,
 68:         'alert' => LOG_ALERT,
 69:         'critical' => LOG_CRIT,
 70:         'error' => LOG_ERR,
 71:         'warning' => LOG_WARNING,
 72:         'notice' => LOG_NOTICE,
 73:         'info' => LOG_INFO,
 74:         'debug' => LOG_DEBUG
 75:     );
 76: 
 77: /**
 78:  * Whether the logger connection is open or not
 79:  *
 80:  * @var bool
 81:  */
 82:     protected $_open = false;
 83: 
 84: /**
 85:  * Make sure the configuration contains the format parameter, by default it uses
 86:  * the error number and the type as a prefix to the message
 87:  *
 88:  * @param array $config Options list.
 89:  */
 90:     public function __construct($config = array()) {
 91:         $config += $this->_defaults;
 92:         parent::__construct($config);
 93:     }
 94: 
 95: /**
 96:  * Writes a message to syslog
 97:  *
 98:  * Map the $type back to a LOG_ constant value, split multi-line messages into multiple
 99:  * log messages, pass all messages through the format defined in the configuration
100:  *
101:  * @param string $type The type of log you are making.
102:  * @param string $message The message you want to log.
103:  * @return bool success of write.
104:  */
105:     public function write($type, $message) {
106:         if (!$this->_open) {
107:             $config = $this->_config;
108:             $this->_open($config['prefix'], $config['flag'], $config['facility']);
109:             $this->_open = true;
110:         }
111: 
112:         $priority = LOG_DEBUG;
113:         if (isset($this->_priorityMap[$type])) {
114:             $priority = $this->_priorityMap[$type];
115:         }
116: 
117:         $messages = explode("\n", $message);
118:         foreach ($messages as $message) {
119:             $message = sprintf($this->_config['format'], $type, $message);
120:             $this->_write($priority, $message);
121:         }
122: 
123:         return true;
124:     }
125: 
126: /**
127:  * Extracts the call to openlog() in order to run unit tests on it. This function
128:  * will initialize the connection to the system logger
129:  *
130:  * @param string $ident the prefix to add to all messages logged
131:  * @param int $options the options flags to be used for logged messages
132:  * @param int $facility the stream or facility to log to
133:  * @return void
134:  */
135:     protected function _open($ident, $options, $facility) {
136:         openlog($ident, $options, $facility);
137:     }
138: 
139: /**
140:  * Extracts the call to syslog() in order to run unit tests on it. This function
141:  * will perform the actual write in the system logger
142:  *
143:  * @param int $priority Message priority.
144:  * @param string $message Message to log.
145:  * @return bool
146:  */
147:     protected function _write($priority, $message) {
148:         return syslog($priority, $message);
149:     }
150: 
151: /**
152:  * Closes the logger connection
153:  */
154:     public function __destruct() {
155:         closelog();
156:     }
157: 
158: }
159: 
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