<?php
include_once("http_request.class.php");

$public_functions = array(
	"Expresso.login",
	"Expresso.logout",
	"Mail.getUserFolders",
	"Mail.getUserMessages"
);

$GLOBALS['phpgw_info'] = array(
	'flags' => array(
			'currentapp'            => 'login',
			'noheader'              => True,
			'disable_Template_class' => True,
			'public_functions'       => $public_functions
	)
);

include_once('../header.inc.php');

// NO COOKIES!!!!
unset($_COOKIE);
switch ($_SERVER['REQUEST_METHOD']) {
	case 'GET':
	case 'POST':		
		execute($_REQUEST);
	break;
	
	default:
	exit();	
}

function execute($request){	
	if(empty($request)) {
		$request = array();
		$http_request = new http_request();
		$content_type = $http_request->header('Content-Type');
		$accept = $http_request->header('Accept');
		$content = $http_request->body();	
	
		if (($content_type == 'application/x-www-form-urlencoded') 
			&& ($accept == 'application/json') && $content != null) {
		
			$req_obj = json_decode($content);
			$request['params'] 	= (array)$req_obj->params;
			$request['method'] 	= $req_obj->method;
			$request ['format']	= "json-rpc";
			$request['id'] 		= $req_obj->id;
		}
	}
		
	list($params, $method, $format, $id) = array_values($request);

	if(verifyMethod($method)){
		$method = explode(".", $method);	
		include_once("./".$format."/".$method[0].".php");
		$obj = new $method[0]($id);	
		$response = $obj->$method[1]($params);	
	}
	else{
		$response = array(
				'result'	=> null,
				'error'		=> "Available Resources: ". implode(", ", $GLOBALS['phpgw_info']['flags']['public_functions']),
				'id'		=> $id
		);		
	}
	dispatch($response, $format);
}

function verifyMethod($method) {
	if(array_search( $method, $GLOBALS['phpgw_info']['flags']['public_functions']) !== FALSE){
		return true;
	}
	else {
		return false;
	}
}

function dispatch($response, $format){
	$e_response = false;
	switch($format){		
		case 'json-rpc':
			$e_response = @json_encode($response);
			break;
		case 'xml-rpc':
			$e_response = @xmlrpc_encode($response);
			break;
		default:
			$e_response = false;	
			break;
	}	
	echo $e_response;	
}