統計
| ブランチ: | リビジョン:

pictcode_admin / lib / Cake / Log / Engine / FileLog.php @ 5ad38a95

履歴 | 表示 | アノテート | ダウンロード (5.583 KB)

1
<?php
2
/**
3
 * File Storage stream for Logging
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 1.3
16
 * @license       http://www.opensource.org/licenses/mit-license.php MIT License
17
 */
18

    
19
App::uses('BaseLog', 'Log/Engine');
20
App::uses('Hash', 'Utility');
21
App::uses('CakeNumber', 'Utility');
22

    
23
/**
24
 * File Storage stream for Logging. Writes logs to different files
25
 * based on the type of log it is.
26
 *
27
 * @package       Cake.Log.Engine
28
 */
29
class FileLog extends BaseLog {
30

    
31
/**
32
 * Default configuration values
33
 *
34
 * @var array
35
 * @see FileLog::__construct()
36
 */
37
        protected $_defaults = array(
38
                'path' => LOGS,
39
                'file' => null,
40
                'types' => null,
41
                'scopes' => array(),
42
                'rotate' => 10,
43
                'size' => 10485760, // 10MB
44
                'mask' => null,
45
        );
46

    
47
/**
48
 * Path to save log files on.
49
 *
50
 * @var string
51
 */
52
        protected $_path = null;
53

    
54
/**
55
 * Log file name
56
 *
57
 * @var string
58
 */
59
        protected $_file = null;
60

    
61
/**
62
 * Max file size, used for log file rotation.
63
 *
64
 * @var int
65
 */
66
        protected $_size = null;
67

    
68
/**
69
 * Constructs a new File Logger.
70
 *
71
 * Config
72
 *
73
 * - `types` string or array, levels the engine is interested in
74
 * - `scopes` string or array, scopes the engine is interested in
75
 * - `file` Log file name
76
 * - `path` The path to save logs on.
77
 * - `size` Used to implement basic log file rotation. If log file size
78
 *   reaches specified size the existing file is renamed by appending timestamp
79
 *   to filename and new log file is created. Can be integer bytes value or
80
 *   human reabable string values like '10MB', '100KB' etc.
81
 * - `rotate` Log files are rotated specified times before being removed.
82
 *   If value is 0, old versions are removed rather then rotated.
83
 * - `mask` A mask is applied when log files are created. Left empty no chmod
84
 *   is made.
85
 *
86
 * @param array $config Options for the FileLog, see above.
87
 */
88
        public function __construct($config = array()) {
89
                $config = Hash::merge($this->_defaults, $config);
90
                parent::__construct($config);
91
        }
92

    
93
/**
94
 * Sets protected properties based on config provided
95
 *
96
 * @param array $config Engine configuration
97
 * @return array
98
 */
99
        public function config($config = array()) {
100
                parent::config($config);
101

    
102
                if (!empty($config['path'])) {
103
                        $this->_path = $config['path'];
104
                }
105
                if (Configure::read('debug') && !is_dir($this->_path)) {
106
                        mkdir($this->_path, 0775, true);
107
                }
108

    
109
                if (!empty($config['file'])) {
110
                        $this->_file = $config['file'];
111
                        if (substr($this->_file, -4) !== '.log') {
112
                                $this->_file .= '.log';
113
                        }
114
                }
115
                if (!empty($config['size'])) {
116
                        if (is_numeric($config['size'])) {
117
                                $this->_size = (int)$config['size'];
118
                        } else {
119
                                $this->_size = CakeNumber::fromReadableSize($config['size']);
120
                        }
121
                }
122

    
123
                return $this->_config;
124
        }
125

    
126
/**
127
 * Implements writing to log files.
128
 *
129
 * @param string $type The type of log you are making.
130
 * @param string $message The message you want to log.
131
 * @return bool success of write.
132
 */
133
        public function write($type, $message) {
134
                $output = date('Y-m-d H:i:s') . ' ' . ucfirst($type) . ': ' . $message . "\n";
135
                $filename = $this->_getFilename($type);
136
                if (!empty($this->_size)) {
137
                        $this->_rotateFile($filename);
138
                }
139

    
140
                $pathname = $this->_path . $filename;
141
                if (empty($this->_config['mask'])) {
142
                        return file_put_contents($pathname, $output, FILE_APPEND);
143
                }
144

    
145
                $exists = file_exists($pathname);
146
                $result = file_put_contents($pathname, $output, FILE_APPEND);
147
                static $selfError = false;
148
                if (!$selfError && !$exists && !chmod($pathname, (int)$this->_config['mask'])) {
149
                        $selfError = true;
150
                        trigger_error(__d(
151
                                'cake_dev', 'Could not apply permission mask "%s" on log file "%s"',
152
                                array($this->_config['mask'], $pathname)), E_USER_WARNING);
153
                        $selfError = false;
154
                }
155
                return $result;
156
        }
157

    
158
/**
159
 * Get filename
160
 *
161
 * @param string $type The type of log.
162
 * @return string File name
163
 */
164
        protected function _getFilename($type) {
165
                $debugTypes = array('notice', 'info', 'debug');
166

    
167
                if (!empty($this->_file)) {
168
                        $filename = $this->_file;
169
                } elseif ($type === 'error' || $type === 'warning') {
170
                        $filename = 'error.log';
171
                } elseif (in_array($type, $debugTypes)) {
172
                        $filename = 'debug.log';
173
                } else {
174
                        $filename = $type . '.log';
175
                }
176

    
177
                return $filename;
178
        }
179

    
180
/**
181
 * Rotate log file if size specified in config is reached.
182
 * Also if `rotate` count is reached oldest file is removed.
183
 *
184
 * @param string $filename Log file name
185
 * @return mixed True if rotated successfully or false in case of error, otherwise null.
186
 *   Void if file doesn't need to be rotated.
187
 */
188
        protected function _rotateFile($filename) {
189
                $filepath = $this->_path . $filename;
190
                if (version_compare(PHP_VERSION, '5.3.0') >= 0) {
191
                        clearstatcache(true, $filepath);
192
                } else {
193
                        clearstatcache();
194
                }
195

    
196
                if (!file_exists($filepath) ||
197
                        filesize($filepath) < $this->_size
198
                ) {
199
                        return null;
200
                }
201

    
202
                if ($this->_config['rotate'] === 0) {
203
                        $result = unlink($filepath);
204
                } else {
205
                        $result = rename($filepath, $filepath . '.' . time());
206
                }
207

    
208
                $files = glob($filepath . '.*');
209
                if ($files) {
210
                        $filesToDelete = count($files) - $this->_config['rotate'];
211
                        while ($filesToDelete > 0) {
212
                                unlink(array_shift($files));
213
                                $filesToDelete--;
214
                        }
215
                }
216

    
217
                return $result;
218
        }
219

    
220
}