<?php
function init_passthrough() {
	global $S, $request;
	if (strpos('../',$request['dir'].'/'.$request['file']) !== false || !file_exists($request['dir'].'/'.$request['file']) && !file_exists($request['dir'].'/'.$request['file'].'.php')) {
		debug('passthrough','File not found '.$request['dir'].'/'.$request['file']);
		return '404';
	}
	switch (strtolower($request['ext'])) {
		// http://www.w3schools.com/media/media_mimeref.asp
		case 'mp3':
			contenttype('audio/mpeg');
			break;
		case 'jpg':
		case 'jpeg':
			contenttype('image/jpeg');
			break;
		case 'gif':
			contenttype('image/gif');
			break;
		case 'ico':
			contenttype('image/x-icon');
			break;
		case 'png':
			contenttype('image/png');
			break;
		case 'js':
			contenttype('application/x-javascript');
			break;
		case 'css':
			contenttype('text/css');
			break;
		case 'html':
		case 'htm':
		case 'xhtml':
			contenttype('text/html');
			break;
		case 'php':
			$S['notemplates']=true;
			break;
		case 'gz':
		case 'gzip':
			contenttype('application/x-gzip');
			break;
		case 'tbz2':
		case 'bz2':
			contenttype('application/bzip2');
			break;
		default:
			debug('passthrough', 'Unknown extension '.$request['ext']);
			return '404';
	}
	// Set filesize if we're working with a static file (needed for normal download and streaming behavior)
	if (strtolower($request['ext']) != 'php' && file_exists($request['dir'].'/'.$request['file'])) {
		header('Content-Length: '.filesize($request['dir'].'/'.$request['file']));
	}
	// Force browser to download, possibly set dynamic filename, passed by previous page or by HTTP request (taken from the PHP manual on readfile()
	if (isset($request['download']) && $request['download']) {
		header('Content-Description: File Transfer');
		header('Content-Transfer-Encoding: binary');
		if (isset($request['download_name'])  && strlen($request['download_name']) > 0) {
			header('Content-Disposition: attachment; filename="'.str_replace('"','\'', $request['download_name']).'"');
		} else {
			header('Content-Disposition: attachment');
		}
	}
	$S['notemplates']=true;
}
function body_passthrough() {
	global $request;
	if (strtolower($request['ext']) == 'php') {
		$_SERVER['PHP_SELF']=substr($_SERVER['PHP_SELF'],0,strlen($_SERVER['PHP_SELF'])-strlen('main.php')).$request['dir'].'/'.$request['file'];
		unset($GLOBALS['S'], $GLOBALS['request'], $GLOBALS['conf']);
		chdir($request['dir']);
		error_reporting(E_DEFAULT);
		return $request['file'];
	} elseif (file_exists($request['dir'].'/'.$request['file'])) {
		readfile($request['dir'].'/'.$request['file']);
	} else {
		return $request['dir'].'/'.$request['file'].'.php';
	}
}
?>