1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
|
<?php
// EasyGiant, a web software to build a community of people that want to share their hardware information.
// Copyright (C) 2009 - 2010 Antonio Gallo (h-source-copyright.txt)
//
// This file is part of EasyGiant
//
// EasyGiant is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// EasyGiant is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with EasyGiant. If not, see <http://www.gnu.org/licenses/>.
if (!defined('EG')) die('Direct access not allowed!');
//class to manage a file di log
//this is a singleton class
class Files_Log
{
const DS = DIRECTORY_SEPARATOR;
// array of instances of the class
//key: name of the instance, value:instance. The name of the instance is also the name of the log file to open
private static $instance = array();
public static $logFolder = './'; //the log folder
public static $logExtension = '.log'; //the extension of the log files
public static $logPermission = 0777;
private $splFile; //SplFileObject
//$fileName: the file to open
private function __construct($fileName)
{
$finalChar = self::$logFolder[strlen(self::$logFolder) - 1];
if (strcmp($finalChar,self::DS) !== 0) self::$logFolder .= self::DS;
$path = self::$logFolder . $fileName . self::$logExtension;
$this->splFile = new SplFileObject($path,'a+');
//change the permission of the file
@chmod($path,self::$logPermission);
}
// The singleton method
// $instanceName: name of the key of self::$instance. It is also the name of the log file to open
public static function getInstance($instanceName)
{
if (!isset(self::$instance[$instanceName])) {
$className = __CLASS__;
self::$instance[$instanceName] = new $className($instanceName);
}
return self::$instance[$instanceName];
}
//write the string $string at the end of the file
public function writeString($string,$format = 'Y-m-d H:i:s')
{
$date = date($format);
$this->splFile->fwrite("[$date]\t".$string."\n");
}
//get the date string of the line $line
public function getDateString($line)
{
if (preg_match('/^[\[]{1}([a-zA-Z0-9:\-\s])*[\]]{1}/',$line,$match))
{
$match[0] = str_replace('[',null,$match[0]);
$match[0] = str_replace(']',null,$match[0]);
return $match[0];
}
else
{
return false;
}
}
//delete all the lines older than a number of days equal to $days
public function clearBefore($days = 30)
{
$tempArray = array();
$newTime = time() - (int)$days * 24 * 3600;
foreach ($this->splFile as $line)
{
$lineTime = strtotime($this->getDateString($line));
if ($lineTime !== false and $lineTime > $newTime)
{
$tempArray[] = $line;
}
}
$this->splFile->ftruncate(0);
foreach ($tempArray as $row)
{
$this->splFile->fwrite($row);
}
}
// Prevent users to clone the instance
public function __clone()
{
throw new Exception('error in '. __METHOD__.': clone is not allowed');
}
}
|
