aboutsummaryrefslogtreecommitdiff
path: root/admin/Library/Files/Log.php
diff options
context:
space:
mode:
Diffstat (limited to 'admin/Library/Files/Log.php')
-rw-r--r--admin/Library/Files/Log.php97
1 files changed, 97 insertions, 0 deletions
diff --git a/admin/Library/Files/Log.php b/admin/Library/Files/Log.php
new file mode 100644
index 0000000..895c26d
--- /dev/null
+++ b/admin/Library/Files/Log.php
@@ -0,0 +1,97 @@
+<?php
+
+// All EasyGiant code 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.
+// See COPYRIGHT.txt and LICENSE.txt.
+
+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');
+ }
+
+} \ No newline at end of file