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<?php
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/**
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 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
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 *
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 * This program is free software: you can redistribute it and/or modify
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 * it under the terms of the GNU General Public License as published by
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 * the Free Software Foundation, either version 3 of the License, or
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 * (at your option) any later version.
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 *
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 * This program is distributed in the hope that it will be useful,
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 * but WITHOUT ANY WARRANTY; without even the implied warranty of
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 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
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 * GNU General Public License for more details.
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 *
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 * You should have received a copy of the GNU General Public License
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 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
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 */
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/**
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 * initialize.php
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 *
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 * @category     Core
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 * @package      Core_Environment
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 * @author       Werner v.d.Decken <wkl@isteam.de>
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 * @copyright    Werner v.d.Decken <wkl@isteam.de>
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 * @license      http://www.gnu.org/licenses/gpl.html   GPL License
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 * @version      0.0.1
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 * @revision     $Revision: 1874 $
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 * @link         $HeadURL: svn://isteam.dynxs.de/wb-archiv/branches/2.8.x/wb/framework/initialize.php $
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 * @lastmodified $Date: 2013-02-28 12:57:20 +0100 (Thu, 28 Feb 2013) $
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 * @since        File replaced since 05.02.2013
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 * @description  set the basic environment to run WebsiteBaker
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 */
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/* *** define some helper functions *** */
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/**
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 * sanitize $_SERVER['HTTP_REFERER']
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 * @param string $sWbUrl qualified startup URL of current application
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 */
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	function SanitizeHttpReferer($sWbUrl = WB_URL) {
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		$sTmpReferer = '';
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		if (isset($_SERVER['HTTP_REFERER']) && $_SERVER['HTTP_REFERER'] != '') {
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			$aRefUrl = parse_url($_SERVER['HTTP_REFERER']);
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			if ($aRefUrl !== false) {
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				$aRefUrl['host'] = isset($aRefUrl['host']) ? $aRefUrl['host'] : '';
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				$aRefUrl['path'] = isset($aRefUrl['path']) ? $aRefUrl['path'] : '';
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				$aRefUrl['fragment'] = isset($aRefUrl['fragment']) ? '#'.$aRefUrl['fragment'] : '';
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				$aWbUrl = parse_url(WB_URL);
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				if ($aWbUrl !== false) {
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					$aWbUrl['host'] = isset($aWbUrl['host']) ? $aWbUrl['host'] : '';
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					$aWbUrl['path'] = isset($aWbUrl['path']) ? $aWbUrl['path'] : '';
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					if (strpos($aRefUrl['host'].$aRefUrl['path'],
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							   $aWbUrl['host'].$aWbUrl['path']) !== false) {
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						$aRefUrl['path'] = preg_replace('#^'.$aWbUrl['path'].'#i', '', $aRefUrl['path']);
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						$sTmpReferer = WB_URL.$aRefUrl['path'].$aRefUrl['fragment'];
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					}
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					unset($aWbUrl);
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				}
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				unset($aRefUrl);
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			}
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		}
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		$_SERVER['HTTP_REFERER'] = $sTmpReferer;
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	}
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/**
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 * Set constants for system/install values
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 * @throws RuntimeException
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 */
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	function SetInstallPathConstants() {
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		if(!defined('DEBUG')){ define('DEBUG', false); } // normaly set in config file
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		if(!defined('ADMIN_DIRECTORY')){ define('ADMIN_DIRECTORY', 'admin'); }
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		if(!preg_match('/xx[a-z0-9_][a-z0-9_\-\.]+/i', 'xx'.ADMIN_DIRECTORY)) {
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			throw new RuntimeException('Invalid admin-directory: ' . ADMIN_DIRECTORY);
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		}
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		if(!defined('WB_PATH')){ define('WB_PATH', dirname(dirname(__FILE__))); }
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		if(!defined('ADMIN_URL')){ define('ADMIN_URL', WB_URL.'/'.ADMIN_DIRECTORY); }
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		if(!defined('ADMIN_PATH')){ define('ADMIN_PATH', WB_PATH.'/'.ADMIN_DIRECTORY); }
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		if(!defined('WB_REL')){
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			$x1 = parse_url(WB_URL);
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			define('WB_REL', (isset($x1['path']) ? $x1['path'] : ''));
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		}
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		define('ADMIN_REL', WB_REL.'/'.ADMIN_DIRECTORY);
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		if(!defined('DOCUMENT_ROOT')) {
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			define('DOCUMENT_ROOT', preg_replace('/'.preg_quote(WB_REL, '/').'$/', '', WB_PATH));
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		}
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		define('TMP_PATH', WB_PATH.'/temp');
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	}
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/**
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 * Read DB settings from configuration file
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 * @return string
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 * @throws RuntimeException
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 * 
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 */
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	function readConfiguration($sRetvalType = 'url') {
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		// check for valid file request. Becomes more stronger in next version
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		$x = debug_backtrace();
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		$bValidRequest = false;
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		if(sizeof($x) != 0) {
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			foreach($x as $aStep) {
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				// define the scripts which can read the configuration
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				if(preg_match('/(index.php|config.php|upgrade-script.php)$/si', $aStep['file'])) {
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					$bValidRequest = true;
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					break;
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				}
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			}
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		}else {
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			$bValidRequest = true;
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		}
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		if(!$bValidRequest) {
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			throw new RuntimeException('illegal function request!'); 
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		}
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		$aRetval = array();
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		$sSetupFile = dirname(dirname(__FILE__)).'/setup.ini.php';
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		if(is_readable($sSetupFile)) {
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			$aCfg = parse_ini_file($sSetupFile, true);
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			foreach($aCfg['Constants'] as $key=>$value) {
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				if($key == 'debug') { $value = filter_var($value, FILTER_VALIDATE_BOOLEAN); }
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				if(!defined(strtoupper($key))) { define(strtoupper($key), $value); }
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			}
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			$db = $aCfg['DataBase'];
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			$db['type'] = isset($db['type']) ? $db['type'] : 'mysql';
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			$db['user'] = isset($db['user']) ? $db['user'] : 'foo';
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			$db['pass'] = isset($db['pass']) ? $db['pass'] : 'bar';
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			$db['host'] = isset($db['host']) ? $db['host'] : 'localhost';
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			$db['port'] = isset($db['port']) ? $db['port'] : '3306';
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			$db['port'] = ($db['port'] != '3306') ? $db['port'] : '';
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			$db['name'] = isset($db['name']) ? $db['name'] : 'dummy';
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			$db['charset'] = isset($db['charset']) ? $db['charset'] : 'utf8';
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			$db['table_prefix'] = (isset($db['table_prefix']) ? $db['table_prefix'] : '');
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			define('TABLE_PREFIX', $db['table_prefix']);
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			if($sRetvalType == 'dsn') {
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				$aRetval[0] = $db['type'].':dbname='.$db['name'].';host='.$db['host'].';'
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				            . ($db['port'] != '' ? 'port='.(int)$db['port'].';' : '');
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				$aRetval[1] = array('CHARSET' => $db['charset'], 'TABLE_PREFIX' => $db['table_prefix']);
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				$aRetval[2] = array( 'user' => $db['user'], 'pass' => $db['pass']);
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			}else { // $sRetvalType == 'url'
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				$aRetval[0] = $db['type'].'://'.$db['user'].':'.$db['pass'].'@'
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				            . $db['host'].($db['port'] != '' ? ':'.$db['port'] : '').'/'.$db['name'];
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			}
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			unset($db, $aCfg);
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			return $aRetval;
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		}
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		throw new RuntimeException('unable to read setup.ini.php');
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	}
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/* ***************************************************************************************
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 * Start initialization                                                                  *
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 ****************************************************************************************/
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// initialize debug evaluation values ---	
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	$sDbConnectType = 'url'; // depending from class WbDatabase it can be 'url' or 'dsn'
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	$starttime = array_sum(explode(" ",microtime()));
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	$iPhpDeclaredClasses = sizeof(get_declared_classes());
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// disable all kind of magic_quotes in PHP versions before 5.4 ---
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	if(version_compare(PHP_VERSION, '5.4.0', '<')) {
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		if(get_magic_quotes_gpc() || get_magic_quotes_runtime()) {
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			@ini_set('magic_quotes_sybase', 0);
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			@ini_set('magic_quotes_gpc', 0);
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			@ini_set('magic_quotes_runtime', 0);
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		}
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	}
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// load db configuration ---
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	if(defined('DB_TYPE')) {
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		$aSqlData = array( 0 => DB_TYPE.'://'.DB_USERNAME.':'.DB_PASSWORD.'@'.DB_HOST.'/'.DB_NAME);
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	}else {
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		$aSqlData = readConfiguration($sDbConnectType);
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	}
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// sanitize $_SERVER['HTTP_REFERER'] ---
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	SanitizeHttpReferer(WB_URL); 
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	SetInstallPathConstants();
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// define constant systemenvironment settings ---
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	date_default_timezone_set('UTC');
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	if(!defined('MAX_TIME')) { define('MAX_TIME', (pow(2, 31)-1)); } // 32-Bit Timestamp of 19 Jan 2038 03:14:07 GMT
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	$sTmp = (isset($_SERVER['HTTP_DNT']) && $_SERVER['HTTP_DNT'] != '') ? $_SERVER['HTTP_DNT'] : '0';
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	if(!defined('DO_NOT_TRACK')) { define('DO_NOT_TRACK', ($sTmp[0] == '1')); }
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// register WB basic autoloader ---
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	$sTmp = dirname(__FILE__).'/WbAutoloader.php';
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	if(!class_exists('WbAutoloader')){ 
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		include($sTmp);
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	}
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	WbAutoloader::doRegister(array(ADMIN_DIRECTORY=>'a', 'modules'=>'m'));
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// register TWIG autoloader ---
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	$sTmp = dirname(dirname(__FILE__)).'/include/Sensio/Twig/lib/Twig/Autoloader.php';
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	if(!class_exists('Twig_Autoloader')) { 
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		include($sTmp); 
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	}
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	Twig_Autoloader::register();
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// aktivate exceptionhandler ---
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	if(!function_exists('globalExceptionHandler')) {
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		include(dirname(__FILE__).'/globalExceptionHandler.php');
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	}
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// ---------------------------
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// Create global database instance ---
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	$database = WbDatabase::getInstance();
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	if($sDbConnectType == 'dsn') {
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		$bTmp = $database->doConnect($aSqlData[0], $aSqlData[1]['user'], $aSqlData[1]['pass'], $aSqlData[2]);
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	}else {
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		$bTmp = $database->doConnect($aSqlData[0], TABLE_PREFIX);
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	}
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	unset($aSqlData);
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// load global settings from database and define global consts from ---
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	$sql = 'SELECT `name`, `value` FROM `'.TABLE_PREFIX.'settings`';
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	if(($oSettings = $database->query($sql))) {
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		if(!$oSettings->numRows()) { throw new AppException('no settings found'); }
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		while($aSetting = $oSettings->fetchRow(MYSQL_ASSOC)) {
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			//sanitize true/false values
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			$aSetting['value'] = ($aSetting['value'] == 'true' 
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								  ? true 
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								  : ($aSetting['value'] == 'false' 
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									 ? false 
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									 : $aSetting['value'])
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								 );
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			$sSettingName = strtoupper($aSetting['name']);
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			switch($sSettingName):
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				case 'STRING_FILE_MODE':
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					$iTmp = ((intval(octdec($aSetting['value'])) & ~0111)|0600);
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					define('OCTAL_FILE_MODE', $iTmp);
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					define('STRING_FILE_MODE', sprintf('0%03o', $iTmp));
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					break;
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				case 'STRING_DIR_MODE':
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					$iTmp = (intval(octdec($aSetting['value'])) |0711);
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					define('OCTAL_DIR_MODE', $iTmp);
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					define('STRING_DIR_MODE', sprintf('0%03o', $iTmp));
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					break;
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				case 'PAGES_DIRECTORY':
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					// sanitize pages_directory
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					$sTmp = trim($aSetting['value'], '/');
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					$sTmp = ($sTmp == '' ? '' : '/'.$sTmp);
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					define('PAGES_DIRECTORY', $sTmp);
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					break;
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				default: // make global const from setting
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					@define($sSettingName, $aSetting['value']);
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					break;
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			endswitch;
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		}
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	}else { throw new AppException($database->get_error()); }
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// set error-reporting from loaded settings ---
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	if(intval(ER_LEVEL) > 0 ) {
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		error_reporting(ER_LEVEL);
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		if( intval(ini_get ( 'display_errors' )) == 0 ) {
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			ini_set('display_errors', 1);
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		}
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	}
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// Start a session ---
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	if(!defined('SESSION_STARTED')) {
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		session_name(APP_NAME.'_session_id');
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		@session_start();
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		define('SESSION_STARTED', true);
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	}
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// get/set users timezone ---
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	define('TIMEZONE',    (isset($_SESSION['TIMEZONE'])    ? $_SESSION['TIMEZONE']    : DEFAULT_TIMEZONE));
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	define('DATE_FORMAT', (isset($_SESSION['DATE_FORMAT']) ? $_SESSION['DATE_FORMAT'] : DEFAULT_DATE_FORMAT));
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	define('TIME_FORMAT', (isset($_SESSION['TIME_FORMAT']) ? $_SESSION['TIME_FORMAT'] : DEFAULT_TIME_FORMAT));
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// set Theme directory --- 
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	define('THEME_URL',  WB_URL.'/templates/'.DEFAULT_THEME);
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	define('THEME_PATH', WB_PATH.'/templates/'.DEFAULT_THEME);
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	define('THEME_REL',  WB_REL.'/templates/'.DEFAULT_THEME);
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// extended wb editor settings
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	define('EDIT_ONE_SECTION', false);
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	define('EDITOR_WIDTH', 0);
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// define form security class and preload it ---
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	$sSecMod = (defined('SECURE_FORM_MODULE') && SECURE_FORM_MODULE != '') ? '.'.SECURE_FORM_MODULE : '';
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	$sSecMod = WB_PATH.'/framework/SecureForm'.$sSecMod.'.php';
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	require_once($sSecMod);
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// *** begin deprecated part *************************************************************
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// load settings for use in Captch and ASP module
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	if (!defined("WB_INSTALL_PROCESS")) {
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		$sql = 'SELECT * FROM `'.TABLE_PREFIX.'mod_captcha_control`';
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		// request settings from database
268
		if(($oSettings = $database->query($sql))) {
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			if(($aSetting = $oSettings->fetchRow(MYSQL_ASSOC))) {
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				define('ENABLED_CAPTCHA', ($aSetting['enabled_captcha'] == '1'));
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				define('ENABLED_ASP', ($aSetting['enabled_asp'] == '1'));
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				define('CAPTCHA_TYPE', $aSetting['captcha_type']);
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				define('ASP_SESSION_MIN_AGE', (int)$aSetting['asp_session_min_age']);
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				define('ASP_VIEW_MIN_AGE', (int)$aSetting['asp_view_min_age']);
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				define('ASP_INPUT_MIN_AGE', (int)$aSetting['asp_input_min_age']);
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			}
277
		}
278
	}
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	if(defined('ENABLED_ASP') && ENABLED_ASP && !isset($_SESSION['session_started'])) {
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		$_SESSION['session_started'] = time();
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	}
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// *** end of deprecated part ************************************************************
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// get user language ---
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	$sRequestMethod = '_'.strtoupper($_SERVER['REQUEST_METHOD']);
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	// check if get/post value is available
286
	$sTempLanguage = (isset(${$sRequestMethod}['lang']) ? ${$sRequestMethod}['lang'] : '');
287
	// validate language code
288
	if(preg_match('/^[a-z]{2}$/si', $sTempLanguage)) {
289
	// if there's valid get/post
290
		define('LANGUAGE', strtoupper($sTempLanguage));
291
		$_SESSION['LANGUAGE']=LANGUAGE;
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	}else {
293
		if(isset($_SESSION['LANGUAGE']) && $_SESSION['LANGUAGE']) {
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		// if there's valid session value
295
			define('LANGUAGE', $_SESSION['LANGUAGE']);
296
		}else {
297
		// otherwise set to default
298
			define('LANGUAGE', DEFAULT_LANGUAGE);
299
		}
300
	}
301
// activate translations / load language definitions
302
/** begin of deprecated part || will be replaced by class Translate **/	
303
// Load Language file
304
	if(!file_exists(WB_PATH.'/languages/'.LANGUAGE.'.php')) {
305
		$sMsg = 'Error loading language file '.LANGUAGE.', please check configuration';
306
		throw new AppException($sMsg);
307
	} else {
308
	// include language file
309
		require_once(WB_PATH.'/languages/'.LANGUAGE.'.php');
310
	}
311
/** end of deprecated part **/
312
// instantiate and initialize adaptor for temporary registry replacement ---
313
	if(class_exists('WbAdaptor')) {
314
		WbAdaptor::getInstance()->getWbConstants();
315
	}
316
// load and activate new global translation table
317
	Translate::getInstance()->initialize('en',
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										 (defined('DEFAULT_LANGUAGE') ? DEFAULT_LANGUAGE : ''), 
319
										 (defined('LANGUAGE') ? LANGUAGE : '') 
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										);
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// *** END OF FILE ***********************************************************************
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