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<?php
/* Include the Scrott system-level configuration file if it exists */
is_file("scrott.conf.php") &&
require_once "scrott.conf.php";
/* Init PHP session */
session_start();
require_once "class/mysql.class.php";
require_once "class/user.class.php";
/*
* Global functions / operations and access to contextual or session-based information
*/
abstract class Framework
{
static $dbobj = null;
/*
* Check for the existence of Scrott's system-level config
*/
function scrottConfExists()
{
global $_SCROTT;
return isset($_SCROTT['conf']);
}
/*
* Get the absolute path on this server for the root of this app
*/
function ar()
{
return substr($_SERVER['PHP_SELF'], 0, -10); // 10 = length of "/index.php"
}
/*
* Get the absolute path to the current page
*/
function ap()
{
return $this->ar() . $_REQUEST['path'];
}
/*
* Redirect to the given URL and die
*/
function redirectTo($url)
{
header("Location: " . $url);
exit;
}
/*
* Get a user object for the currently logged in user. Returns false if session is logged out.
*/
function getCurrentUser()
{
if (isset($_SESSION['userguid']))
return new User($_SESSION['userguid']);
return false;
}
/*
* Get the IP address the client held when the current session began
*/
function getOriginIP()
{
return $_SESSION['userip'];
}
/*
* Set the current logged in user
*/
function setCurrentUser($user = null)
{
if ($user != null && isset($user->guid))
{
$_SESSION['userguid'] = $user->guid;
$_SESSION['userip'] = $_SERVER['REMOTE_ADDR'];
}
else
{
unset($_SESSION['userguid']);
unset($_SESSION['userip']);
}
}
/*
* Get or create the app's database connection object (this is a singleton object and dependent on system-level config)
*/
static function getDbConnection()
{
global $_SCROTT;
if (self::$dbobj != null)
return self::$dbobj;
switch ($_SCROTT['dbEngine'])
{
case "mysql":
$host = $_SCROTT['dbAddress'];
$username = $_SCROTT['dbUser'];
$password = $_SCROTT['dbPass'];
$dbName = $_SCROTT['dbName'];
self::$dbobj = new Mysql($host, $username, $password, $dbName);
break;
default:
throw new Exception("Problem with Scrott Configuration. Invalid database engine specified.");
break;
}
return self::$dbobj;
}
}
?>
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