fix AuthnRequest validation: requested AssertionConsumerServiceURL MUST be equal to AssertionConsumerService in PVP metadata

2 files changed, 30 insertions, 5 deletions

diff --git a/id/server/idserverlib/src/main/java/at/gv/egovernment/moa/id/protocols/pvp2x/PVP2XProtocol.java b/id/server/idserverlib/src/main/java/at/gv/egovernment/moa/id/protocols/pvp2x/PVP2XProtocol.java
index 6ed3f0eb5..ee5685e5f 100644
--- a/id/server/idserverlib/src/main/java/at/gv/egovernment/moa/id/protocols/pvp2x/PVP2XProtocol.java
+++ b/id/server/idserverlib/src/main/java/at/gv/egovernment/moa/id/protocols/pvp2x/PVP2XProtocol.java
@@ -623,10 +623,25 @@ public class PVP2XProtocol extends MOAIDAuthConstants implements IModulInfo  {
 		AssertionConsumerService consumerService = null;
 		if (MiscUtil.isNotEmpty(authnRequest.getAssertionConsumerServiceURL()) && 
 				MiscUtil.isNotEmpty(authnRequest.getProtocolBinding())) {
-			//use AssertionConsumerServiceURL from request 
-			consumerService = SAML2Utils.createSAMLObject(AssertionConsumerService.class);
-			consumerService.setBinding(authnRequest.getProtocolBinding());
-			consumerService.setLocation(authnRequest.getAssertionConsumerServiceURL());
+			//use AssertionConsumerServiceURL from request
+
+			//check requested AssertionConsumingService URL against metadata
+			List<AssertionConsumerService> metadataAssertionServiceList = spSSODescriptor.getAssertionConsumerServices();
+			for (AssertionConsumerService service : metadataAssertionServiceList) {
+				if (authnRequest.getProtocolBinding().equals(service.getBinding())
+						&& authnRequest.getAssertionConsumerServiceURL().equals(service.getLocation())) {
+					consumerService = SAML2Utils.createSAMLObject(AssertionConsumerService.class);
+					consumerService.setBinding(authnRequest.getProtocolBinding());
+					consumerService.setLocation(authnRequest.getAssertionConsumerServiceURL());					
+					Logger.debug("Requested AssertionConsumerServiceURL is valid.");
+				}				
+			}
+			
+			if (consumerService == null) {				
+				throw new InvalidAssertionConsumerServiceException(authnRequest.getAssertionConsumerServiceURL());
+				
+			}
+
 
 		} else {
 			//use AssertionConsumerServiceIndex and select consumerService from metadata
@@ -645,9 +660,10 @@ public class PVP2XProtocol extends MOAIDAuthConstants implements IModulInfo  {
 			if (consumerService == null) {			
 				throw new InvalidAssertionConsumerServiceException(aIdx);
 				
-			}
+			}			
 		}
 		
+		
 		//select AttributeConsumingService from request
 		AttributeConsumingService attributeConsumer = null;		
 		Integer aIdx = authnRequest.getAttributeConsumingServiceIndex();
diff --git a/id/server/idserverlib/src/main/java/at/gv/egovernment/moa/id/protocols/pvp2x/exceptions/InvalidAssertionConsumerServiceException.java b/id/server/idserverlib/src/main/java/at/gv/egovernment/moa/id/protocols/pvp2x/exceptions/InvalidAssertionConsumerServiceException.java
index 94a4e8226..392569366 100644
--- a/id/server/idserverlib/src/main/java/at/gv/egovernment/moa/id/protocols/pvp2x/exceptions/InvalidAssertionConsumerServiceException.java
+++ b/id/server/idserverlib/src/main/java/at/gv/egovernment/moa/id/protocols/pvp2x/exceptions/InvalidAssertionConsumerServiceException.java
@@ -34,6 +34,15 @@ public class InvalidAssertionConsumerServiceException extends PVP2Exception {
 	/**
 	 * 
 	 */
+	public InvalidAssertionConsumerServiceException(String wrongURL) {
+		super("pvp2.23", new Object[]{wrongURL});
+		this.statusCodeValue = StatusCode.REQUESTER_URI;
+		
+	}
+
+	/**
+	 * 
+	 */
 	private static final long serialVersionUID = 7861790149343943091L;
 
 }