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<?php

/**

 * This file acts a bootstrapper to load in all the required

 * files including the configuration. If no configuration file

 * is detected, it will launch the installation process.

 *

 * @author  Ian J Robotham <ian@eyejay.net>

 * @version 29-Dec-2010

 */



 //clear any existing configuration

 unset($CFG);



 //check for an existing configuration file

 $config_file = dirname(__FILE__).'/config.php';

 if(!file_exists($config_file) && filesize($config_file) <= 0){

     //configuration file missing, request setup

     header('Location: install/index.php');

 } else {

     require_once $config_file;

 }



 //create the session

 session_name('mercuryitms');

 session_start();



 //calculate & setup the library folder

 $CFG->libdir = $CFG->dirroot.'/lib';



 //if register_globals is on, protect against global vars

 if (ini_get('register_globals') == 1){

    if (is_array($_REQUEST))

        foreach(array_keys($_REQUEST) as $var_to_kill)

            unset($$var_to_kill);

    if (is_array($_SESSION))

        foreach(array_keys($_SESSION) as $var_to_kill)

            unset($$var_to_kill);

    if (is_array($_SERVER))

        foreach(array_keys($_SERVER)  as $var_to_kill)

            unset($$var_to_kill);

    unset($var_to_kill);

}



 //setup for require_js functionality

 global $_javascript;

 $_javascript = array();



 //build database connection

 require_once($CFG->libdir.'/adodb5/adodb.inc.php');

 $db = NewADOConnection($CFG->dbtype);

 $connection = $db->Connect($CFG->dbserver, $CFG->dbuser, $CFG->dbpassword, $CFG->dbname);

 if(!$connection){

     /** @todo Make this prettier */

     die('Connection to database could not be established. Please contact System Administrator.');

 }



  //check the theme has been set and set to default (charcoal) if not

 if(empty($CFG->theme))

 	$CFG->theme = 'default';



 //set the include path to include PEAR

 set_include_path(get_include_path() . PATH_SEPARATOR . $CFG->dirroot.'/lib/pear/');



 //include libraries

 require_once($CFG->libdir.'/lang.lib.php');

 require_once($CFG->libdir.'/data.lib.php');

 require_once($CFG->libdir.'/web.lib.php');

 require_once($CFG->libdir.'/image.lib.php');

 require_once($CFG->libdir.'/input.lib.php');

 require_once($CFG->libdir.'/module.lib.php');

 require_once($CFG->libdir.'/security.lib.php');

 require_once($CFG->libdir.'/reporting.lib.php');



 //load additional settings from the config

 $config = get_records('config');

 if(!empty($config)){

 	foreach($config as $config_item){

 		$name = $config_item->name;

 		if(!isset($CFG->$name)){ //do not allow database to override file

 			$CFG->$name = $config_item->value;

 		}

 	}

 }



 //check we have a session length define, if not make one

 if(empty($CFG->sessionlength)){

     $CFG->sessionlength = 60*60; //default session length is 1 hour

 }



 //if logged in, get the user

 unset($USER);

 if(array_key_exists('USER', $_SESSION)){

    $USER = unserialize($_SESSION['USER']);

 } else {

    $USER = new stdClass;

    $USER->id = 0;

 }

?>