<?php
require_once(PATH_t3lib.'class.t3lib_svbase.php');

class tx_xxx_sv1 extends tx_sv_authbase {
	var $WsdlPath = 'http://xxx/userservice.wsdl';
	
	function init() {
		$this->writeDevLog = TRUE;
		return parent::init();
	}
				
	/**
	 * Mandatory function. Normally getUser should only fetch the userdata, but due to the fact that
	 * our webservice already authenticates the user before he is even able to get his data,
	 * this step could be skipped by always setting it to true. This is possible because TYPO3
	 * will not call this method when getUser failed.
	 *
	 * @param	object
	 * @return	boolean or 100 or 200
	 */
	function authUser($user)	{
		return true;
	}
	
	/**
	 * Mandatory function
	 *
	 * @return array with userdata or false
	 */
	function getUser() {
		$user = false;
		if ($this->login['status']=='login' AND $this->login['uident'])	{
			$user = $this->getUserFromWebservice($this->login['uname'], $this->login['uident']);
				
			//write userdata to internal db
			$resCount = $GLOBALS['TYPO3_DB']->exec_SELECTquery('uid', 'fe_users', 'uid = '.$user['uid']);
			
			//leave out password and other critical data!
			$userForDb = array(
				'uid' 		=> $user['uid'],
				'username' 	=> $user['username']
			);
			
			if($GLOBALS['TYPO3_DB']->sql_num_rows($resCount) == 1) {
				//update
				$res = $GLOBALS['TYPO3_DB']->exec_UPDATEquery('fe_users', 'uid = '.$userForDb['uid'], $userForDb);
			} else {
				//insert
				$res = $GLOBALS['TYPO3_DB']->exec_INSERTquery('fe_users', $userForDb);
			}
			//if internal db operation failed, login also does
			if(!$res) {
				return false;
			}
		}
		return $user;
	}
	
	/**
	 * Requests user object from webservice.
	 *
	 * @param string $username
	 * @param string $password
	 * @return array with userdata or false if not valid
	 */
	function getUserFromWebservice($username, $password) {
		try {
			//connect
			$soapclient = new SoapClient($this->WsdlPath, array('trace' => 1));
			//construct data
			$data = new sdtClass();
			$data->username = utf8_encode($username);
			$data->password = utf8_encode($password);
			
			//login!
			$response = $soapclient->loginUser($data);
		} catch(SoapFault $e) {
			trigger_error("SOAP Fault: (faultcode: {$e->faultcode}, faultstring: {$e->faultstring})", E_USER_ERROR);
		}
		//handle response
		return $this->handleWebserviceResponse($response);
	}
	
	/**
	 * Handles the service response, deals errors and returns the user array if everything was fine.
	 *
	 * @param object $responseObject
	 * @return array or false if no user was found
	 */
	function handleWebserviceResponse($responseObject) {
		if($responseObject->success) {
			//TODO: utf8_decode all members before returning
			return $responseObject->user;
		} else {
			//TODO: some error handling...
			return false;
		}
	}
	
	/**
	 * Mandatory function. Should return an array of possible usergroups.
	 *
	 * @return unknown
	 */
	function getGroups() {
		$group = array(
			'uid' => array(1),
			'title' => array('nogroup'),
			'pid' => array(0)
		);
		return $group;
	}
}
?>