Sign artifact response (issue 429).

git-svn-id: https://simplesamlphp.googlecode.com/svn/trunk@2895 44740490-163a-0410-bde0-09ae8108e29a

modules/saml/lib/Message.php

@@ -17,7 +17,7 @@ class sspmod_saml_Message {
 	 * @param SimpleSAML_Configuration $dstMetadata  The metadata of the recipient.
 	 * @param SAML2_Message $element  The element we should add the data to.
 	 */
-	public static function addSign(SimpleSAML_Configuration $srcMetadata, SimpleSAML_Configuration $dstMetadata, SAML2_SignedElement $element) {
+	public static function addSign(SimpleSAML_Configuration $srcMetadata, SimpleSAML_Configuration $dstMetadata = NULL, SAML2_SignedElement $element) {
 
 		$keyArray = SimpleSAML_Utilities::loadPrivateKey($srcMetadata, TRUE);
 		$certArray = SimpleSAML_Utilities::loadPublicKey($srcMetadata, FALSE);

www/saml2/idp/ArtifactResolutionService.php

@@ -51,4 +51,5 @@ $artifactResponse = new SAML2_ArtifactResponse();
 $artifactResponse->setIssuer($idpEntityId);
 $artifactResponse->setInResponseTo($request->getId());
 $artifactResponse->setAny($responseXML);
+sspmod_saml_Message::addSign($idpMetadata, NULL, $artifactResponse);
 $binding->send($artifactResponse);