cakephp2-php8/cake/libs/security.php

<?php
/* SVN FILE: $Id$ */
/**
 * Short description for file.
 *
 * Long description for file
 *
 * PHP versions 4 and 5
 *
 * CakePHP :  Rapid Development Framework <http://www.cakephp.org/>
 * Copyright (c)	2006, Cake Software Foundation, Inc.
 *								1785 E. Sahara Avenue, Suite 490-204
 *								Las Vegas, Nevada 89104
 *
 * Licensed under The MIT License
 * Redistributions of files must retain the above copyright notice.
 *
 * @filesource
 * @copyright		Copyright (c) 2006, Cake Software Foundation, Inc.
 * @link				http://www.cakefoundation.org/projects/info/cakephp CakePHP Project
 * @package			cake
 * @subpackage		cake.cake.libs
 * @since			CakePHP v .0.10.0.1233
 * @version			$Revision$
 * @modifiedby		$LastChangedBy$
 * @lastmodified	$Date$
 * @license			http://www.opensource.org/licenses/mit-license.php The MIT License
 */
/**
 * Short description for file.
 *
 * Long description for file
 *
 * @package		cake
 * @subpackage	cake.cake.libs
 */
class Security extends Object{
/**
  * Enter description here...
  *
  * @return unknown
  */
	function &getInstance() {
		static $instance = array();
	 	if (!$instance) {
	 		$instance[0] = &new Security;
	 	}
	 	return $instance[0];
	}
/**
  * Enter description here...
  *
  * @return unknown
  */
	function inactiveMins() {
		switch(CAKE_SECURITY) {
			case 'high':
				return 10;
			break;
			case 'medium':
				return 100;
			break;
			case 'low':
			default:
				return 300;
				break;
		}
	}
/**
  * Enter description here...
  *
  * @return unknown
  */
	function generateAuthKey() {
		$_this =& Security::getInstance();
		return $_this->hash(uniqid(rand(), true));
	}
/**
 * Enter description here...
 *
 * @param unknown_type $authKey
 * @return unknown
 */
	 function validateAuthKey($authKey) {
		  return true;
	 }
/**
 * Enter description here...
 *
 * @param unknown_type $string
 * @param unknown_type $type
 * @return unknown
 */
	 function hash($string, $type = 'sha1') {
	 	$type = strtolower($type);
	 	if ($type == 'sha1') {
	 		if (function_exists('sha1')) {
	 			$return = sha1($string);
	 			return $return;
	 		} else {
	 			$type = 'sha256';
	 		}
	 	}

	 	if ($type == 'sha256') {
	 		if (function_exists('mhash')) {
	 			$return = bin2hex(mhash(MHASH_SHA256, $string));
	 			return $return;
	 		} else {
	 			$type = 'md5';
	 		}
	 	}

	 	if ($type == 'md5') {
	 		$return = md5($string);
	 		return $return;
	 	}
	 }
/**
 * Enter description here...
 *
 * @param unknown_type $text
 * @param unknown_type $key
 * @return unknown
 */
	 function cipher($text, $key) {
	 	if (!defined('CIPHER_SEED')) {
	 		//This is temporary will change later
	 		define('CIPHER_SEED', '76859309657453542496749683645');
	 	}
	 	srand (CIPHER_SEED);
	 	$out = '';

	 	for($i = 0; $i < strlen($text); $i++) {
	 		for($j = 0; $j < ord(substr($key, $i % strlen($key), 1)); $j++) {
	 			$toss = rand(0, 255);
	 		}
	 		$mask = rand(0, 255);
	 		$out .= chr(ord(substr($text, $i, 1)) ^ $mask);
	 	}
	 	return $out;
	 }
}
?>