add federated IDP authentication modul

1 files changed, 172 insertions, 0 deletions

diff --git a/id/server/idserverlib/src/main/java/at/gv/egovernment/moa/id/protocols/pvp2x/builder/PVPAuthnRequestBuilder.java b/id/server/idserverlib/src/main/java/at/gv/egovernment/moa/id/protocols/pvp2x/builder/PVPAuthnRequestBuilder.java
new file mode 100644
index 000000000..312bb823d
--- /dev/null
+++ b/id/server/idserverlib/src/main/java/at/gv/egovernment/moa/id/protocols/pvp2x/builder/PVPAuthnRequestBuilder.java
@@ -0,0 +1,172 @@
+/*
+ * Copyright 2014 Federal Chancellery Austria
+ * MOA-ID has been developed in a cooperation between BRZ, the Federal
+ * Chancellery Austria - ICT staff unit, and Graz University of Technology.
+ *
+ * Licensed under the EUPL, Version 1.1 or - as soon they will be approved by
+ * the European Commission - subsequent versions of the EUPL (the "Licence");
+ * You may not use this work except in compliance with the Licence.
+ * You may obtain a copy of the Licence at:
+ * http://www.osor.eu/eupl/
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the Licence is distributed on an "AS IS" basis,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the Licence for the specific language governing permissions and
+ * limitations under the Licence.
+ *
+ * This product combines work with different licenses. See the "NOTICE" text
+ * file for details on the various modules and licenses.
+ * The "NOTICE" text file is part of the distribution. Any derivative works
+ * that you distribute must include a readable copy of the "NOTICE" text file.
+ */
+package at.gv.egovernment.moa.id.protocols.pvp2x.builder;
+
+import java.security.NoSuchAlgorithmException;
+
+import javax.servlet.http.HttpServletResponse;
+
+import org.joda.time.DateTime;
+import org.opensaml.common.impl.SecureRandomIdentifierGenerator;
+import org.opensaml.common.xml.SAMLConstants;
+import org.opensaml.saml2.core.AuthnContextClassRef;
+import org.opensaml.saml2.core.AuthnContextComparisonTypeEnumeration;
+import org.opensaml.saml2.core.AuthnRequest;
+import org.opensaml.saml2.core.Issuer;
+import org.opensaml.saml2.core.NameIDPolicy;
+import org.opensaml.saml2.core.NameIDType;
+import org.opensaml.saml2.core.RequestedAuthnContext;
+import org.opensaml.saml2.metadata.EntityDescriptor;
+import org.opensaml.saml2.metadata.SingleSignOnService;
+import org.opensaml.ws.message.encoder.MessageEncodingException;
+import org.opensaml.xml.security.SecurityException;
+import org.springframework.stereotype.Service;
+
+import at.gv.egovernment.moa.id.moduls.IRequest;
+import at.gv.egovernment.moa.id.protocols.pvp2x.binding.IEncoder;
+import at.gv.egovernment.moa.id.protocols.pvp2x.binding.PostBinding;
+import at.gv.egovernment.moa.id.protocols.pvp2x.binding.RedirectBinding;
+import at.gv.egovernment.moa.id.protocols.pvp2x.config.IPVPAuthnRequestBuilderConfiguruation;
+import at.gv.egovernment.moa.id.protocols.pvp2x.exceptions.AuthnRequestBuildException;
+import at.gv.egovernment.moa.id.protocols.pvp2x.exceptions.PVP2Exception;
+import at.gv.egovernment.moa.id.protocols.pvp2x.utils.SAML2Utils;
+import at.gv.egovernment.moa.logging.Logger;
+
+/**
+ * @author tlenz
+ *
+ */
+@Service("PVPAuthnRequestBuilder")
+public class PVPAuthnRequestBuilder {
+	
+	
+	/**
+	 * Build a PVP2.x specific authentication request
+	 * 
+	 * @param pendingReq Currently processed pendingRequest 
+	 * @param config AuthnRequest builder configuration, never null
+	 * @param idpEntity SAML2 EntityDescriptor of the IDP, which receive this AuthnRequest, never null
+	 * @param httpResp
+	 * @throws NoSuchAlgorithmException 
+	 * @throws SecurityException 
+	 * @throws PVP2Exception 
+	 * @throws MessageEncodingException 
+	 */
+	public void buildAuthnRequest(IRequest pendingReq, IPVPAuthnRequestBuilderConfiguruation config, 
+			HttpServletResponse httpResp) throws NoSuchAlgorithmException, MessageEncodingException, PVP2Exception, SecurityException {
+		//get IDP Entity element from config
+		EntityDescriptor idpEntity = config.getIDPEntityDescriptor();
+		
+		AuthnRequest authReq = SAML2Utils
+				.createSAMLObject(AuthnRequest.class);
+		
+		//select SingleSignOn Service endpoint from IDP metadata
+		SingleSignOnService endpoint = null;  
+		for (SingleSignOnService sss : 
+				idpEntity.getIDPSSODescriptor(SAMLConstants.SAML20P_NS).getSingleSignOnServices()) {
+			
+			// use POST binding as default if it exists 
+			if (sss.getBinding().equals(SAMLConstants.SAML2_POST_BINDING_URI)) { 
+				endpoint = sss;
+				
+			} else if ( sss.getBinding().equals(SAMLConstants.SAML2_REDIRECT_BINDING_URI) 
+					&& endpoint == null )
+				endpoint = sss;
+			
+		}
+		
+		if (endpoint == null) {
+			Logger.warn("Building AuthnRequest FAILED: > Requested IDP " + idpEntity.getEntityID() 
+					+ " does not support POST or Redirect Binding.");
+			throw new AuthnRequestBuildException("sp.pvp2.00", new Object[]{idpEntity.getEntityID()});
+			
+		} else
+			authReq.setDestination(endpoint.getLocation());
+		
+		
+		//set basic AuthnRequest information
+		SecureRandomIdentifierGenerator gen = new SecureRandomIdentifierGenerator();
+		authReq.setID(gen.generateIdentifier());
+		authReq.setIssueInstant(new DateTime());
+		
+		//set isPassive flag
+		if (config.isPassivRequest() == null)
+			authReq.setIsPassive(false);
+		else
+			authReq.setIsPassive(config.isPassivRequest());
+
+		//set EntityID of the service provider
+		Issuer issuer = SAML2Utils.createSAMLObject(Issuer.class);
+		issuer.setFormat(NameIDType.ENTITY);
+		issuer.setValue(config.getSPEntityID());
+		authReq.setIssuer(issuer);
+
+		//set AssertionConsumerService ID
+		if (config.getAssertionConsumerServiceId() != null)
+			authReq.setAssertionConsumerServiceIndex(config.getAssertionConsumerServiceId());
+		
+		//set NameIDPolicy
+		if (config.getNameIDPolicyFormat() != null) {
+			NameIDPolicy policy = SAML2Utils.createSAMLObject(NameIDPolicy.class);
+			policy.setAllowCreate(config.getNameIDPolicyAllowCreation());
+			policy.setFormat(config.getNameIDPolicyFormat());
+			authReq.setNameIDPolicy(policy);
+		}
+		
+		//set requested QAA level
+		if (config.getAuthnContextClassRef() != null) {
+			RequestedAuthnContext reqAuthContext = SAML2Utils.createSAMLObject(RequestedAuthnContext.class);		
+			AuthnContextClassRef authnClassRef = SAML2Utils.createSAMLObject(AuthnContextClassRef.class);
+		
+			authnClassRef.setAuthnContextClassRef(config.getAuthnContextClassRef());
+			
+			if (config.getAuthnContextComparison() == null)
+				reqAuthContext.setComparison(AuthnContextComparisonTypeEnumeration.MINIMUM);
+			else
+				reqAuthContext.setComparison(config.getAuthnContextComparison());
+			
+			reqAuthContext.getAuthnContextClassRefs().add(authnClassRef);					
+			authReq.setRequestedAuthnContext(reqAuthContext);
+		}
+				
+		//TODO: implement requested attributes
+		//maybe: config.getRequestedAttributes();
+		
+		//select message encoder
+		IEncoder binding = null;
+		if (endpoint.getBinding().equals(
+				SAMLConstants.SAML2_REDIRECT_BINDING_URI)) {
+			binding = new RedirectBinding();
+														
+		} else if (endpoint.getBinding().equals(
+				SAMLConstants.SAML2_POST_BINDING_URI)) {
+			binding = new PostBinding();
+			
+		}
+		
+		//encode message
+		binding.encodeRequest(null, httpResp, authReq, 
+				endpoint.getLocation(), pendingReq.getRequestID(), config.getAuthnRequestSigningCredential());
+	}
+
+}