docker-vulnerable-dvwa/dvwa/external/phpids/0.6/lib/IDS/Init.php
2016-12-02 17:19:11 -02:00

233 lines
6.2 KiB
PHP

<?php
/**
* PHPIDS
*
* Requirements: PHP5, SimpleXML
*
* Copyright (c) 2008 PHPIDS group (http://php-ids.org)
*
* PHPIDS is free software; you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation, version 3 of the License, or
* (at your option) any later version.
*
* PHPIDS 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 Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with PHPIDS. If not, see <http://www.gnu.org/licenses/>.
*
* PHP version 5.1.6+
*
* @category Security
* @package PHPIDS
* @author Mario Heiderich <mario.heiderich@gmail.com>
* @author Christian Matthies <ch0012@gmail.com>
* @author Lars Strojny <lars@strojny.net>
* @license http://www.gnu.org/licenses/lgpl.html LGPL
* @link http://php-ids.org/
*/
/**
* Framework initiation
*
* This class is used for the purpose to initiate the framework and inhabits
* functionality to parse the needed configuration file.
*
* @category Security
* @package PHPIDS
* @author Christian Matthies <ch0012@gmail.com>
* @author Mario Heiderich <mario.heiderich@gmail.com>
* @author Lars Strojny <lars@strojny.net>
* @copyright 2007 The PHPIDS Groupup
* @license http://www.gnu.org/licenses/lgpl.html LGPL
* @version Release: $Id:Init.php 517 2007-09-15 15:04:13Z mario $
* @link http://php-ids.org/
* @since Version 0.4
*/
class IDS_Init
{
/**
* Holds config settings
*
* @var array
*/
public $config = array();
/**
* Instance of this class depending on the supplied config file
*
* @var array
* @static
*/
private static $instances = array();
/**
* Path to the config file
*
* @var string
*/
private $configPath = null;
/**
* Constructor
*
* Includes needed classes and parses the configuration file
*
* @param string $configPath the path to the config file
*
* @return object $this
*/
private function __construct($configPath = null)
{
include_once 'IDS/Monitor.php';
include_once 'IDS/Filter/Storage.php';
if ($configPath) {
$this->setConfigPath($configPath);
$this->config = parse_ini_file($this->configPath, true);
}
}
/**
* Permitting to clone this object
*
* For the sake of correctness of a singleton pattern, this is necessary
*
* @return void
*/
public final function __clone()
{
}
/**
* Returns an instance of this class. Also a PHP version check
* is being performed to avoid compatibility problems with PHP < 5.1.6
*
* @param string $configPath the path to the config file
*
* @return object
*/
public static function init($configPath = null)
{
if (!isset(self::$instances[$configPath])) {
self::$instances[$configPath] = new IDS_Init($configPath);
}
return self::$instances[$configPath];
}
/**
* Sets the path to the configuration file
*
* @param string $path the path to the config
*
* @throws Exception if file not found
* @return void
*/
public function setConfigPath($path)
{
if (file_exists($path)) {
$this->configPath = $path;
} else {
throw new Exception(
'Configuration file could not be found at ' .
htmlspecialchars($path, ENT_QUOTES, 'UTF-8')
);
}
}
/**
* Returns path to configuration file
*
* @return string the config path
*/
public function getConfigPath()
{
return $this->configPath;
}
/**
* This method checks if a base path is given and usage is set to true.
* If all that tests succeed the base path will be returned as a string -
* else null will be returned.
*
* @return string the base path or null
*/
public function getBasePath() {
return ((isset($this->config['General']['base_path'])
&& $this->config['General']['base_path']
&& isset($this->config['General']['use_base_path'])
&& $this->config['General']['use_base_path'])
? $this->config['General']['base_path'] : null);
}
/**
* Merges new settings into the exsiting ones or overwrites them
*
* @param array $config the config array
* @param boolean $overwrite config overwrite flag
*
* @return void
*/
public function setConfig(array $config, $overwrite = false)
{
if ($overwrite) {
$this->config = $this->_mergeConfig($this->config, $config);
} else {
$this->config = $this->_mergeConfig($config, $this->config);
}
}
/**
* Merge config hashes recursivly
*
* The algorithm merges configuration arrays recursively. If an element is
* an array in both, the values will be appended. If it is a scalar in both,
* the value will be replaced.
*
* @param array $current The legacy hash
* @param array $successor The hash which values count more when in doubt
* @return array Merged hash
*/
protected function _mergeConfig($current, $successor)
{
if (is_array($current) and is_array($successor)) {
foreach ($successor as $key => $value) {
if (isset($current[$key])
and is_array($value)
and is_array($current[$key])) {
$current[$key] = $this->_mergeConfig($current[$key], $value);
} else {
$current[$key] = $successor[$key];
}
}
}
return $current;
}
/**
* Returns the config array
*
* @return array the config array
*/
public function getConfig()
{
return $this->config;
}
}
/**
* Local variables:
* tab-width: 4
* c-basic-offset: 4
* End:
* vim600: sw=4 ts=4 expandtab
*/