<?php

/*
* AUTHOR: Samuel Muñoz Hidalgo
* EMAIL: samuel.mh@gmail.com
* LAST REVISION: 13-FEB-09
* DESCRIPTION:
*		Pretty form to get a managed InfoCard
*		User flow controller.
*		Displays the template and request a non null xmlToken
*/


/* Load the configuration. */
$config = SimpleSAML_Configuration::getInstance();
$autoconfig = SimpleSAML_Configuration::getConfig('config-login-infocard.php');

$Infocard =   $autoconfig->getValue('InfoCard');


/* Load the session of the current user. */
$session = SimpleSAML_Session::getInstance();
if($session == NULL) {
	SimpleSAML_Utilities::fatalError($session->getTrackID(), 'NOSESSION');
}

if (!array_key_exists('AuthState', $_REQUEST)) {
SimpleSAML_Logger::debug('NO AUTH STATE');
SimpleSAML_Logger::debug('ERROR: NO AUTH STATE');
	throw new SimpleSAML_Error_BadRequest('Missing AuthState parameter.');
} else {
	$authStateId = $_REQUEST['AuthState'];
SimpleSAML_Logger::debug('AUTH STATE:  '.$authStateId);
}

$username = null;
$password = null;

$state = "validate";
if(array_key_exists('form', $_POST) && ($_POST['form']!=NULL)  ) {
	if(array_key_exists('username', $_POST) && ($_POST['username']!=NULL)  ) {
		if(array_key_exists('password', $_POST) && ($_POST['password']!=NULL)  ) {
			//Validation: Username/Password
			$username = $_POST['username'];
			$password = $_POST['password'];
			if (sspmod_InfoCard_UserFunctions::validateUser(array('username'=>$username,'password'=>$password),'UsernamePasswordCredential')){
				$userCredential =   $autoconfig->getValue('UserCredential');
				if (strcmp($userCredential,'UsernamePasswordCredential')==0){
					
					$ICconfig['InfoCard'] = $Infocard;
					$ICconfig['InfoCard']['issuer'] = $autoconfig->getValue('tokenserviceurl');//sspmod_InfoCard_Utils::getIssuer($sts_crt);
					$ICconfig['tokenserviceurl'] = $autoconfig->getValue('tokenserviceurl');
					$ICconfig['mexurl'] = $autoconfig->getValue('mexurl');
					$ICconfig['sts_key'] = $autoconfig->getValue('sts_key');
					$ICconfig['certificates'] = $autoconfig->getValue('certificates');
					$ICconfig['UserCredential'] = $autoconfig->getValue('UserCredential');
					
					$ICdata = sspmod_InfoCard_UserFunctions::fillICdata($username,$userCredential);
					$IC = sspmod_InfoCard_STS::createCard($ICdata,$ICconfig);
					header("Content-Disposition: attachment; filename=\"".$ICdata['CardName'].".crd\"");
					header('Content-Type: application/x-informationcard');
					header('Content-Length:'.strlen($IC));
					echo $IC;
					$state = 'end';
				}else if (strcmp($userCredential,'SelfIssuedCredential')==0){
					/*
					* VERY IMPORTANT:
					* The STS is acting as a Relying Party to get the PPID in order to generate a
					*  managed card with a self issued credential, that's why we use the STS
					*  certificate private key to decrypt the token.
					*/
					if(array_key_exists('xmlToken', $_POST) && ($_POST['xmlToken']!=NULL)  ) {
						SimpleSAML_Logger::debug('HAY XML TOKEN');
						$token = new sspmod_InfoCard_RP_InfoCard();
						$idp_key = $autoconfig->getValue('sts_key');
						$token->addIDPKey($idp_key);
						$token->addSTSCertificate('');	
						$claims = $token->process($_POST['xmlToken']);
						if(($claims->isValid()) && ($claims->privatepersonalidentifier!=NULL)) {
							$ppid = $claims->privatepersonalidentifier;
							$ICconfig['InfoCard'] = $Infocard;
							$ICconfig['InfoCard']['issuer'] = $autoconfig->getValue('tokenserviceurl');//sspmod_InfoCard_Utils::getIssuer($sts_crt);
							$ICconfig['tokenserviceurl'] = $autoconfig->getValue('tokenserviceurl');
							$ICconfig['mexurl'] = $autoconfig->getValue('mexurl');
							$ICconfig['sts_key'] = $autoconfig->getValue('sts_key');
							$ICconfig['certificates'] = $autoconfig->getValue('certificates');
							$ICconfig['UserCredential'] = $autoconfig->getValue('UserCredential');
							
							$ICdata = sspmod_InfoCard_UserFunctions::fillICdata($username,$userCredential,$ppid);	
							$IC = sspmod_InfoCard_STS::createCard($ICdata,$ICconfig);
							header('Content-Disposition: attachment; filename="'.$ICdata['CardName'].'.crd"');
							header('Content-Type: application/x-informationcard');
							header('Content-Length:'.strlen($IC));
							echo $IC;
							$state = 'end';
						}else {
							SimpleSAML_Logger::debug('Wrong Self-Issued card');
							$error = 'wrong_IC';
							$state = "selfIssued";
						}
					}else{
						SimpleSAML_Logger::debug('NO HAY XML TOKEN');
						$error = NULL;
						$state = "selfIssued";
					}
				}else{
					SimpleSAML_Logger::debug('CONFIGURATION ERROR: UserCredential '.$userCredential.' NOT SUPPORTED');
				}
			}else{
				$error = 'Wrong_user_pass';
				SimpleSAML_Logger::debug('WRONG username or password');
			}
		}else{
			$error = 'NO_password';
			SimpleSAML_Logger::debug('NO PASSWORD');
		}
	}else {
		$error = 'NO_user';
		SimpleSAML_Logger::debug('NO USERNAME');
	}
}else{
	$error = NULL;
}


unset($_POST); //Show the languages bar if reloaded

$t = new SimpleSAML_XHTML_Template($config, 'InfoCard:temp-getcardform.php', 'InfoCard:dict-InfoCard'); //(configuracion, template, diccionario)
$t->data['header'] = 'simpleSAMLphp: Get your Infocard';
$t->data['stateparams'] = array('AuthState' => $authStateId);


$t->data['InfoCard'] = $Infocard;

$cardGenerator =   $autoconfig->getValue('CardGenerator');
$t->data['CardGenerator'] = $cardGenerator;

$help_desk_email_URL = $autoconfig->getValue('help_desk_email_URL');
$t->data['help_desk_email_URL'] = $help_desk_email_URL;

$contact_info_URL = $autoconfig->getValue('contact_info_URL');
$t->data['contact_info_URL'] = $contact_info_URL;

$t->data['error'] = $error;
$t->data['form'] = $state;

//For testing purposes
$t->data['username']=$username;
$t->data['password']=$password;



$t->show();
exit();
?>