<?php

require_once('../../_include.php');

/* Load simpleSAMLphp, configuration and metadata */
$config = SimpleSAML_Configuration::getInstance();
$metadata = SimpleSAML_Metadata_MetaDataStorageHandler::getMetadataHandler();
$session = SimpleSAML_Session::getInstance();

if (!$config->getValue('enable.shib13-idp', false))
	SimpleSAML_Utilities::fatalError($session->getTrackID(), 'NOACCESS');

/* Check if valid local session exists.. */
if ($config->getValue('admin.protectmetadata', false)) {
	if (!isset($session) || !$session->isValid('login-admin') ) {
		SimpleSAML_Utilities::redirect('/' . $config->getBaseURL() . 'auth/login-admin.php',
			array('RelayState' => SimpleSAML_Utilities::selfURL())
		);
	}
}


try {

	$idpmeta = isset($_GET['idpentityid']) ? $_GET['idpentityid'] : $metadata->getMetaDataCurrent('shib13-idp-hosted');
	$idpentityid = isset($_GET['idpentityid']) ? $_GET['idpentityid'] : $metadata->getMetaDataCurrentEntityID('shib13-idp-hosted');
	
	$certInfo = SimpleSAML_Utilities::loadPublicKey($idpmeta, TRUE);
	$certFingerprint = $certInfo['certFingerprint'];
	if (count($certFingerprint) === 1) {
		/* Only one valid certificate. */
		$certFingerprint = $certFingerprint[0];
	}

	$metaArray = array(
		'name' => 'Type in a name for this entity',
		'description' => 'and a proper description that would help users know when to select this IdP.',
		'SingleSignOnService' => $metadata->getGenerated('SingleSignOnService', 'shib13-idp-hosted'),
		'certFingerprint' => $certFingerprint,
	);

	if (array_key_exists('NameIDFormat', $idpmeta)) {
		$metaArray['NameIDFormat'] = $idpmeta['NameIDFormat'];
	} else {
		$metaArray['NameIDFormat'] = 'urn:mace:shibboleth:1.0:nameIdentifier';
	}


	$metaflat = var_export($idpentityid, TRUE) . ' => ' . var_export($metaArray, TRUE) . ',';
	
	$metaArray['certData'] = $certInfo['certData'];
	$metaBuilder = new SimpleSAML_Metadata_SAMLBuilder($idpentityid);
	$metaBuilder->addMetadataIdP11($metaArray);
	$metaBuilder->addContact('technical', array(
		'emailAddress' => $config->getValue('technicalcontact_email'),
		'name' => $config->getValue('technicalcontact_name'),
		));
	$metaxml = $metaBuilder->getEntityDescriptorText();

	/* Sign the metadata if enabled. */
	$metaxml = SimpleSAML_Metadata_Signer::sign($metaxml, $idpmeta, 'Shib 1.3 IdP');
	
	
	if (array_key_exists('output', $_GET) && $_GET['output'] == 'xhtml') {
		$defaultidp = $config->getValue('default-shib13-idp');
		
		$t = new SimpleSAML_XHTML_Template($config, 'metadata.php', 'admin');
	
		$t->data['header'] = 'shib13-idp';
		
		$t->data['metaurl'] = SimpleSAML_Utilities::addURLparameter(SimpleSAML_Utilities::selfURLNoQuery(), array('output' => 'xml'));
		$t->data['metadata'] = htmlspecialchars($metaxml);
		$t->data['metadataflat'] = htmlspecialchars($metaflat);
	
		$t->data['defaultidp'] = $defaultidp;
		
		$t->show();
		
	} else {
	
		header('Content-Type: application/xml');
		
		echo $metaxml;
		exit(0);
	}


	
} catch(Exception $exception) {
	
	SimpleSAML_Utilities::fatalError($session->getTrackID(), 'METADATA', $exception);

}

?>