private void TransferClient(IDPEndPoint idpEndpoint, Saml20AuthnRequest request, HttpContext context) { AuditLogging.AssertionId = request.ID; AuditLogging.IdpId = idpEndpoint.Id; //Set the last IDP we attempted to login at. context.Session[IDPTempSessionKey]= idpEndpoint.Id; // Determine which endpoint to use from the configuration file or the endpoint metadata. IDPEndPointElement destination = DetermineEndpointConfiguration(SAMLBinding.REDIRECT, idpEndpoint.SSOEndpoint, idpEndpoint.metadata.SSOEndpoints()); request.Destination = destination.Url; if (idpEndpoint.ForceAuthn) request.ForceAuthn = true; object isPassiveFlag = context.Session[IDPIsPassive]; if (isPassiveFlag != null && (bool)isPassiveFlag) { request.IsPassive = true; context.Session[IDPIsPassive] = null; } if (idpEndpoint.IsPassive) request.IsPassive = true; object forceAuthnFlag = context.Session[IDPForceAuthn]; if (forceAuthnFlag != null && (bool)forceAuthnFlag) { request.ForceAuthn = true; context.Session[IDPForceAuthn] = null; } if (idpEndpoint.SSOEndpoint != null) { if (!string.IsNullOrEmpty(idpEndpoint.SSOEndpoint.ForceProtocolBinding)) { request.ProtocolBinding = idpEndpoint.SSOEndpoint.ForceProtocolBinding; } } //Save request message id to session context.Session.Add(ExpectedInResponseToSessionKey, request.ID); if (destination.Binding == SAMLBinding.REDIRECT) { Trace.TraceData(TraceEventType.Information, string.Format(Tracing.SendAuthnRequest, Saml20Constants.ProtocolBindings.HTTP_Redirect, idpEndpoint.Id)); HttpRedirectBindingBuilder builder = new HttpRedirectBindingBuilder(); builder.signingKey = _certificate.PrivateKey; builder.Request = request.GetXml().OuterXml; string s = request.Destination + "?" + builder.ToQuery(); AuditLogging.logEntry(Direction.OUT, Operation.AUTHNREQUEST_REDIRECT, "Redirecting user to IdP for authentication", builder.Request); context.Response.Redirect(s, true); return; } if (destination.Binding == SAMLBinding.POST) { Trace.TraceData(TraceEventType.Information, string.Format(Tracing.SendAuthnRequest, Saml20Constants.ProtocolBindings.HTTP_Post, idpEndpoint.Id)); HttpPostBindingBuilder builder = new HttpPostBindingBuilder(destination); //Honor the ForceProtocolBinding and only set this if it's not already set if (string.IsNullOrEmpty(request.ProtocolBinding)) request.ProtocolBinding = Saml20Constants.ProtocolBindings.HTTP_Post; XmlDocument req = request.GetXml(); XmlSignatureUtils.SignDocument(req, request.ID); builder.Request = req.OuterXml; AuditLogging.logEntry(Direction.OUT, Operation.AUTHNREQUEST_POST); builder.GetPage().ProcessRequest(context); return; } if(destination.Binding == SAMLBinding.ARTIFACT) { Trace.TraceData(TraceEventType.Information, string.Format(Tracing.SendAuthnRequest, Saml20Constants.ProtocolBindings.HTTP_Artifact, idpEndpoint.Id)); HttpArtifactBindingBuilder builder = new HttpArtifactBindingBuilder(context); //Honor the ForceProtocolBinding and only set this if it's not already set if(string.IsNullOrEmpty(request.ProtocolBinding)) request.ProtocolBinding = Saml20Constants.ProtocolBindings.HTTP_Artifact; AuditLogging.logEntry(Direction.OUT, Operation.AUTHNREQUEST_REDIRECT_ARTIFACT); builder.RedirectFromLogin(destination, request); } HandleError(context, Resources.BindingError); }
private void HandleSOAP(HttpContext context, Stream inputStream) { Trace.TraceMethodCalled(GetType(), "HandleSOAP"); HttpArtifactBindingParser parser = new HttpArtifactBindingParser(inputStream); HttpArtifactBindingBuilder builder = new HttpArtifactBindingBuilder(context); if(parser.IsArtifactResolve()) { Trace.TraceData(TraceEventType.Information, Tracing.ArtifactResolveIn); IDPEndPoint idp = RetrieveIDPConfiguration(parser.Issuer); AuditLogging.IdpId = idp.Id; AuditLogging.AssertionId = parser.ArtifactResolve.ID; if (!parser.CheckSamlMessageSignature(idp.metadata.Keys)) { HandleError(context, "Invalid Saml message signature"); AuditLogging.logEntry(Direction.IN, Operation.ARTIFACTRESOLVE, "Could not verify signature", parser.SamlMessage); }; builder.RespondToArtifactResolve(parser.ArtifactResolve); }else if(parser.IsArtifactResponse()) { Trace.TraceData(TraceEventType.Information, Tracing.ArtifactResponseIn); Status status = parser.ArtifactResponse.Status; if (status.StatusCode.Value != Saml20Constants.StatusCodes.Success) { HandleError(context, status); AuditLogging.logEntry(Direction.IN, Operation.ARTIFACTRESOLVE, string.Format("Illegal status for ArtifactResponse {0} expected 'Success', msg: {1}", status.StatusCode.Value, parser.SamlMessage)); return; } if(parser.ArtifactResponse.Any.LocalName == Response.ELEMENT_NAME) { bool isEncrypted; XmlElement assertion = GetAssertion(parser.ArtifactResponse.Any, out isEncrypted); if (assertion == null) HandleError(context, "Missing assertion"); if(isEncrypted) { HandleEncryptedAssertion(context, assertion); }else { HandleAssertion(context, assertion); } }else { AuditLogging.logEntry(Direction.IN, Operation.ARTIFACTRESOLVE, string.Format("Unsupported payload message in ArtifactResponse: {0}, msg: {1}", parser.ArtifactResponse.Any.LocalName, parser.SamlMessage)); HandleError(context, string.Format("Unsupported payload message in ArtifactResponse: {0}", parser.ArtifactResponse.Any.LocalName)); } }else { Status s = parser.GetStatus(); if (s != null) { HandleError(context, s); } else { AuditLogging.logEntry(Direction.IN, Operation.ARTIFACTRESOLVE, string.Format("Unsupported SamlMessage element: {0}, msg: {1}", parser.SamlMessageName, parser.SamlMessage)); HandleError(context, string.Format("Unsupported SamlMessage element: {0}", parser.SamlMessageName)); } } }
private void TransferClient(IDPEndPoint endpoint, HttpContext context) { Trace.TraceMethodCalled(GetType(), "TransferClient()"); Saml20LogoutRequest request = Saml20LogoutRequest.GetDefault(); AuditLogging.AssertionId = request.ID; AuditLogging.IdpId = endpoint.Id; // Determine which endpoint to use from the configuration file or the endpoint metadata. IDPEndPointElement destination = DetermineEndpointConfiguration(SAMLBinding.REDIRECT, endpoint.SLOEndpoint, endpoint.metadata.SLOEndpoints()); request.Destination = destination.Url; string nameIdFormat = context.Session[IDPNameIdFormat].ToString(); request.SubjectToLogOut.Format = nameIdFormat; if (destination.Binding == SAMLBinding.POST) { HttpPostBindingBuilder builder = new HttpPostBindingBuilder(destination); request.Destination = destination.Url; request.Reason = Saml20Constants.Reasons.User; request.SubjectToLogOut.Value = context.User.Identity.Name; request.SessionIndex = context.Session[IDPSessionIdKey].ToString(); XmlDocument requestDocument = request.GetXml(); XmlSignatureUtils.SignDocument(requestDocument, request.ID); builder.Request = requestDocument.OuterXml; if(Trace.ShouldTrace(TraceEventType.Information)) Trace.TraceData(TraceEventType.Information, string.Format(Tracing.SendLogoutRequest, "POST", endpoint.Id, requestDocument.OuterXml)); AuditLogging.logEntry(Direction.OUT, Operation.LOGOUTREQUEST, "Binding: POST"); builder.GetPage().ProcessRequest(context); context.Response.End(); return; } if(destination.Binding == SAMLBinding.REDIRECT) { HttpRedirectBindingBuilder builder = new HttpRedirectBindingBuilder(); builder.signingKey = FederationConfig.GetConfig().SigningCertificate.GetCertificate().PrivateKey; request.Destination = destination.Url; request.Reason = Saml20Constants.Reasons.User; request.SubjectToLogOut.Value = context.User.Identity.Name; request.SessionIndex = context.Session[IDPSessionIdKey].ToString(); builder.Request = request.GetXml().OuterXml; string redirectUrl = destination.Url + "?" + builder.ToQuery(); if (Trace.ShouldTrace(TraceEventType.Information)) Trace.TraceData(TraceEventType.Information, string.Format(Tracing.SendLogoutRequest, "REDIRECT", endpoint.Id, redirectUrl)); AuditLogging.logEntry(Direction.OUT, Operation.LOGOUTREQUEST, "Binding: Redirect"); context.Response.Redirect(redirectUrl, true); return; } if(destination.Binding == SAMLBinding.ARTIFACT) { if (Trace.ShouldTrace(TraceEventType.Information)) Trace.TraceData(TraceEventType.Information, string.Format(Tracing.SendLogoutRequest, "ARTIFACT", endpoint.Id, string.Empty)); request.Destination = destination.Url; request.Reason = Saml20Constants.Reasons.User; request.SubjectToLogOut.Value = context.User.Identity.Name; request.SessionIndex = context.Session[IDPSessionIdKey].ToString(); HttpArtifactBindingBuilder builder = new HttpArtifactBindingBuilder(context); AuditLogging.logEntry(Direction.OUT, Operation.LOGOUTREQUEST, "Method: Artifact"); builder.RedirectFromLogout(destination, request, Guid.NewGuid().ToString("N")); } HandleError(context, Resources.BindingError); }
private void HandleArtifact(HttpContext context) { HttpArtifactBindingBuilder builder = new HttpArtifactBindingBuilder(context); Stream inputStream = builder.ResolveArtifact(); HandleSOAP(context, inputStream); }
private void HandleSOAP(HttpContext context, Stream inputStream) { Trace.TraceMethodCalled(GetType(), "HandleSOAP"); HttpArtifactBindingParser parser = new HttpArtifactBindingParser(inputStream); HttpArtifactBindingBuilder builder = new HttpArtifactBindingBuilder(context); SAML20FederationConfig config = SAML20FederationConfig.GetConfig(); IDPEndPoint idp = RetrieveIDPConfiguration(parser.Issuer); AuditLogging.IdpId = idp.Id; if (parser.IsArtifactResolve()) { Trace.TraceData(TraceEventType.Information, Tracing.ArtifactResolveIn); if (!parser.CheckSamlMessageSignature(idp.metadata.Keys)) { HandleError(context, "Invalid Saml message signature"); AuditLogging.logEntry(Direction.UNDEFINED, Operation.ARTIFACTRESOLVE, "Signature could not be verified", parser.SamlMessage); } AuditLogging.AssertionId = parser.ArtifactResolve.ID; AuditLogging.logEntry(Direction.IN, Operation.ARTIFACTRESOLVE, "", parser.SamlMessage); builder.RespondToArtifactResolve(parser.ArtifactResolve); } else if (parser.IsArtifactResponse()) { Trace.TraceData(TraceEventType.Information, Tracing.ArtifactResponseIn); Status status = parser.ArtifactResponse.Status; if (status.StatusCode.Value != Saml20Constants.StatusCodes.Success) { AuditLogging.logEntry(Direction.UNDEFINED, Operation.ARTIFACTRESOLVE, string.Format("Unexpected status code for artifact response: {0}, expected 'Success', msg: {1}", status.StatusCode.Value, parser.SamlMessage)); HandleError(context, status); return; } if (parser.ArtifactResponse.Any.LocalName == LogoutRequest.ELEMENT_NAME) { if(Trace.ShouldTrace(TraceEventType.Information)) Trace.TraceData(TraceEventType.Information, string.Format(Tracing.LogoutRequest, parser.ArtifactResponse.Any.OuterXml)); //Send logoutresponse via artifact Saml20LogoutResponse response = new Saml20LogoutResponse(); response.Issuer = config.ServiceProvider.ID; LogoutRequest req = Serialization.DeserializeFromXmlString<LogoutRequest>(parser.ArtifactResponse.Any.OuterXml); response.StatusCode = Saml20Constants.StatusCodes.Success; response.InResponseTo = req.ID; IDPEndPoint endpoint = RetrieveIDPConfiguration(context.Session[IDPLoginSessionKey].ToString()); IDPEndPointElement destination = DetermineEndpointConfiguration(SAMLBinding.REDIRECT, endpoint.SLOEndpoint, endpoint.metadata.SLOEndpoints()); builder.RedirectFromLogout(destination, response); }else if(parser.ArtifactResponse.Any.LocalName == LogoutResponse.ELEMENT_NAME) { DoLogout(context); } else { AuditLogging.logEntry(Direction.UNDEFINED, Operation.ARTIFACTRESOLVE, string.Format("Unsupported payload message in ArtifactResponse: {0}, msg: {1}", parser.ArtifactResponse.Any.LocalName, parser.SamlMessage)); HandleError(context, string.Format("Unsupported payload message in ArtifactResponse: {0}", parser.ArtifactResponse.Any.LocalName)); } } else if(parser.IsLogoutReqest()) { if (Trace.ShouldTrace(TraceEventType.Information)) Trace.TraceData(TraceEventType.Information, string.Format(Tracing.LogoutRequest, parser.SamlMessage.OuterXml)); LogoutRequest req = parser.LogoutRequest; //Build the response object Saml20LogoutResponse response = new Saml20LogoutResponse(); response.Issuer = config.ServiceProvider.ID; //response.Destination = destination.Url; response.StatusCode = Saml20Constants.StatusCodes.Success; response.InResponseTo = req.ID; XmlDocument doc = response.GetXml(); XmlSignatureUtils.SignDocument(doc, response.ID); if (doc.FirstChild is XmlDeclaration) doc.RemoveChild(doc.FirstChild); builder.SendResponseMessage(doc.OuterXml); } else { Status s = parser.GetStatus(); if (s != null) { HandleError(context, s); } else { AuditLogging.logEntry(Direction.UNDEFINED, Operation.ARTIFACTRESOLVE, string.Format("Unsupported SamlMessage element: {0}, msg: {1}", parser.SamlMessageName, parser.SamlMessage)); HandleError(context, string.Format("Unsupported SamlMessage element: {0}", parser.SamlMessageName)); } } }