/// <summary> /// Transfers the client. /// </summary> /// <param name="idp">The identity provider.</param> /// <param name="context">The context.</param> private void TransferClient(IdentityProviderElement idp, HttpContext context) { var request = Saml20LogoutRequest.GetDefault(); // Determine which endpoint to use from the configuration file or the endpoint metadata. var destination = DetermineEndpointConfiguration(BindingType.Redirect, idp.Endpoints.LogoutEndpoint, idp.Metadata.IDPSLOEndpoints); request.Destination = destination.Url; var nameIdFormat = StateService.Get<string>(IdpNameIdFormat); request.SubjectToLogOut.Format = nameIdFormat; // Handle POST binding if (destination.Binding == BindingType.Post) { var builder = new HttpPostBindingBuilder(destination); request.Destination = destination.Url; request.Reason = Saml20Constants.Reasons.User; request.SubjectToLogOut.Value = StateService.Get<string>(IdpNameId); request.SessionIndex = StateService.Get<string>(IdpSessionIdKey); var requestDocument = request.GetXml(); XmlSignatureUtils.SignDocument(requestDocument, request.Id); builder.Request = requestDocument.OuterXml; Logger.DebugFormat(TraceMessages.LogoutRequestSent, idp.Id, "POST", builder.Request); builder.GetPage().ProcessRequest(context); context.Response.End(); return; } // Handle Redirect binding if (destination.Binding == BindingType.Redirect) { request.Destination = destination.Url; request.Reason = Saml20Constants.Reasons.User; request.SubjectToLogOut.Value = StateService.Get<string>(IdpNameId); request.SessionIndex = StateService.Get<string>(IdpSessionIdKey); var builder = new HttpRedirectBindingBuilder { Request = request.GetXml().OuterXml, SigningKey = Saml2Config.GetConfig().ServiceProvider.SigningCertificate.GetCertificate().PrivateKey }; var redirectUrl = destination.Url + "?" + builder.ToQuery(); Logger.DebugFormat(TraceMessages.LogoutRequestSent, idp.Id, "REDIRECT", redirectUrl); context.Response.Redirect(redirectUrl, true); return; } // Handle Artifact binding if (destination.Binding == BindingType.Artifact) { request.Destination = destination.Url; request.Reason = Saml20Constants.Reasons.User; request.SubjectToLogOut.Value = StateService.Get<string>(IdpNameId); request.SessionIndex = StateService.Get<string>(IdpSessionIdKey); Logger.DebugFormat(TraceMessages.LogoutRequestSent, idp.Id, "ARTIFACT", request.GetXml().OuterXml); var builder = new HttpArtifactBindingBuilder(context); builder.RedirectFromLogout(destination, request, Guid.NewGuid().ToString("N")); } Logger.Error(ErrorMessages.EndpointBindingInvalid); throw new Saml20Exception(ErrorMessages.EndpointBindingInvalid); }
/// <summary> /// Handles the SOAP message. /// </summary> /// <param name="context">The context.</param> /// <param name="inputStream">The input stream.</param> private void HandleSoap(HttpContext context, Stream inputStream) { var parser = new HttpArtifactBindingParser(inputStream); Logger.DebugFormat(TraceMessages.SOAPMessageParse, parser.SamlMessage.OuterXml); var builder = new HttpArtifactBindingBuilder(context); var config = Saml2Config.GetConfig(); var idp = RetrieveIDPConfiguration(parser.Issuer); if (parser.IsArtifactResolve) { Logger.DebugFormat(TraceMessages.ArtifactResolveReceived, parser.SamlMessage); if (!parser.CheckSamlMessageSignature(idp.Metadata.Keys)) { Logger.ErrorFormat(ErrorMessages.ArtifactResolveSignatureInvalid); throw new Saml20Exception(ErrorMessages.ArtifactResolveSignatureInvalid); } builder.RespondToArtifactResolve(parser.ArtifactResolve); } else if (parser.IsArtifactResponse) { Logger.DebugFormat(TraceMessages.ArtifactResponseReceived, parser.SamlMessage); if (!parser.CheckSamlMessageSignature(idp.Metadata.Keys)) { Logger.Error(ErrorMessages.ArtifactResponseSignatureInvalid); throw new Saml20Exception(ErrorMessages.ArtifactResponseSignatureInvalid); } var status = parser.ArtifactResponse.Status; if (status.StatusCode.Value != Saml20Constants.StatusCodes.Success) { Logger.ErrorFormat(ErrorMessages.ArtifactResponseStatusCodeInvalid, status.StatusCode.Value); throw new Saml20Exception(string.Format(ErrorMessages.ArtifactResponseStatusCodeInvalid, status.StatusCode.Value)); } if (parser.ArtifactResponse.Any.LocalName == LogoutRequest.ElementName) { Logger.DebugFormat(TraceMessages.LogoutRequestReceived, parser.ArtifactResponse.Any.OuterXml); var req = Serialization.DeserializeFromXmlString<LogoutRequest>(parser.ArtifactResponse.Any.OuterXml); // Send logoutresponse via artifact var response = new Saml20LogoutResponse { Issuer = config.ServiceProvider.Id, StatusCode = Saml20Constants.StatusCodes.Success, InResponseTo = req.Id }; var endpoint = RetrieveIDPConfiguration(StateService.Get<string>(IdpLoginSessionKey)); var destination = DetermineEndpointConfiguration(BindingType.Redirect, endpoint.Endpoints.LogoutEndpoint, endpoint.Metadata.IDPSLOEndpoints); builder.RedirectFromLogout(destination, response); } else if (parser.ArtifactResponse.Any.LocalName == LogoutResponse.ElementName) { DoLogout(context); } else { Logger.ErrorFormat(ErrorMessages.ArtifactResponseMissingResponse); throw new Saml20Exception(ErrorMessages.ArtifactResponseMissingResponse); } } else if (parser.IsLogoutReqest) { Logger.DebugFormat(TraceMessages.LogoutRequestReceived, parser.SamlMessage.OuterXml); var req = parser.LogoutRequest; // Build the response object var response = new Saml20LogoutResponse { Issuer = config.ServiceProvider.Id, StatusCode = Saml20Constants.StatusCodes.Success, InResponseTo = req.Id }; // response.Destination = destination.Url; var doc = response.GetXml(); XmlSignatureUtils.SignDocument(doc, response.Id); if (doc.FirstChild is XmlDeclaration) { doc.RemoveChild(doc.FirstChild); } builder.SendResponseMessage(doc.OuterXml); } else { Logger.ErrorFormat(ErrorMessages.SOAPMessageUnsupportedSamlMessage); throw new Saml20Exception(ErrorMessages.SOAPMessageUnsupportedSamlMessage); } }
/// <summary> /// Handles the artifact. /// </summary> /// <param name="context">The context.</param> private void HandleArtifact(HttpContext context) { var builder = new HttpArtifactBindingBuilder(context); var inputStream = builder.ResolveArtifact(); HandleSoap(context, inputStream); }
/// <summary> /// Transfers the client. /// </summary> /// <param name="identityProvider">The identity provider.</param> /// <param name="request">The request.</param> /// <param name="context">The context.</param> private void TransferClient(IdentityProviderElement identityProvider, Saml20AuthnRequest request, HttpContext context) { // Set the last IDP we attempted to login at. StateService.Set(IdpTempSessionKey, identityProvider.Id); // Determine which endpoint to use from the configuration file or the endpoint metadata. var destination = DetermineEndpointConfiguration(BindingType.Redirect, identityProvider.Endpoints.SignOnEndpoint, identityProvider.Metadata.SSOEndpoints); request.Destination = destination.Url; if (identityProvider.ForceAuth) { request.ForceAuthn = true; } // Check isPassive status var isPassiveFlag = StateService.Get<bool?>(IdpIsPassive); if (isPassiveFlag != null && (bool)isPassiveFlag) { request.IsPassive = true; StateService.Set(IdpIsPassive, null); } if (identityProvider.IsPassive) { request.IsPassive = true; } // Check if request should forceAuthn var forceAuthnFlag = StateService.Get<bool?>(IdpForceAuthn); if (forceAuthnFlag != null && (bool)forceAuthnFlag) { request.ForceAuthn = true; StateService.Set(IdpForceAuthn, null); } // Check if protocol binding should be forced if (identityProvider.Endpoints.SignOnEndpoint != null) { if (!string.IsNullOrEmpty(identityProvider.Endpoints.SignOnEndpoint.ForceProtocolBinding)) { request.ProtocolBinding = identityProvider.Endpoints.SignOnEndpoint.ForceProtocolBinding; } } // Save request message id to session StateService.Set(ExpectedInResponseToSessionKey, request.Id); switch (destination.Binding) { case BindingType.Redirect: Logger.DebugFormat(TraceMessages.AuthnRequestPrepared, identityProvider.Id, Saml20Constants.ProtocolBindings.HttpRedirect); var redirectBuilder = new HttpRedirectBindingBuilder { SigningKey = _certificate.PrivateKey, Request = request.GetXml().OuterXml }; Logger.DebugFormat(TraceMessages.AuthnRequestSent, redirectBuilder.Request); var redirectLocation = request.Destination + "?" + redirectBuilder.ToQuery(); context.Response.Redirect(redirectLocation, true); break; case BindingType.Post: Logger.DebugFormat(TraceMessages.AuthnRequestPrepared, identityProvider.Id, Saml20Constants.ProtocolBindings.HttpPost); var postBuilder = 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.HttpPost; } var requestXml = request.GetXml(); XmlSignatureUtils.SignDocument(requestXml, request.Id); postBuilder.Request = requestXml.OuterXml; Logger.DebugFormat(TraceMessages.AuthnRequestSent, postBuilder.Request); postBuilder.GetPage().ProcessRequest(context); break; case BindingType.Artifact: Logger.DebugFormat(TraceMessages.AuthnRequestPrepared, identityProvider.Id, Saml20Constants.ProtocolBindings.HttpArtifact); var artifactBuilder = 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.HttpArtifact; } Logger.DebugFormat(TraceMessages.AuthnRequestSent, request.GetXml().OuterXml); artifactBuilder.RedirectFromLogin(destination, request); break; default: Logger.Error(ErrorMessages.EndpointBindingInvalid); throw new Saml20Exception(ErrorMessages.EndpointBindingInvalid); } }
/// <summary> /// Handles the SOAP. /// </summary> /// <param name="context">The context.</param> /// <param name="inputStream">The input stream.</param> private void HandleSoap(HttpContext context, Stream inputStream) { var parser = new HttpArtifactBindingParser(inputStream); Logger.DebugFormat(TraceMessages.SOAPMessageParse, parser.SamlMessage.OuterXml); var builder = new HttpArtifactBindingBuilder(context); if (parser.IsArtifactResolve) { Logger.Debug(TraceMessages.ArtifactResolveReceived); var idp = RetrieveIDPConfiguration(parser.Issuer); if (!parser.CheckSamlMessageSignature(idp.Metadata.Keys)) { Logger.Error(ErrorMessages.ArtifactResolveSignatureInvalid); throw new Saml20Exception(ErrorMessages.ArtifactResolveSignatureInvalid); } builder.RespondToArtifactResolve(parser.ArtifactResolve); } else if (parser.IsArtifactResponse) { Logger.Debug(TraceMessages.ArtifactResolveReceived); var idp = RetrieveIDPConfiguration(parser.Issuer); if (!parser.CheckSamlMessageSignature(idp.Metadata.Keys)) { Logger.Error(ErrorMessages.ArtifactResponseSignatureInvalid); throw new Saml20Exception(ErrorMessages.ArtifactResponseSignatureInvalid); } var status = parser.ArtifactResponse.Status; if (status.StatusCode.Value != Saml20Constants.StatusCodes.Success) { Logger.ErrorFormat(ErrorMessages.ArtifactResponseStatusCodeInvalid, status.StatusCode.Value); throw new Saml20Exception(string.Format(ErrorMessages.ArtifactResponseStatusCodeInvalid, status.StatusCode.Value)); } if (parser.ArtifactResponse.Any.LocalName == Response.ElementName) { if (!idp.AllowUnsolicitedResponses) { CheckReplayAttack(context, parser.ArtifactResponse.Any); } var responseStatus = GetStatusElement(parser.ArtifactResponse.Any); if (responseStatus.StatusCode.Value != Saml20Constants.StatusCodes.Success) { Logger.ErrorFormat(ErrorMessages.ArtifactResponseStatusCodeInvalid, responseStatus.StatusCode.Value); throw new Saml20Exception(string.Format(ErrorMessages.ArtifactResponseStatusCodeInvalid, responseStatus.StatusCode.Value)); } bool isEncrypted; var assertion = GetAssertion(parser.ArtifactResponse.Any, out isEncrypted); if (assertion == null) { Logger.Error(ErrorMessages.ArtifactResponseMissingAssertion); throw new Saml20Exception(ErrorMessages.ArtifactResponseMissingAssertion); } if (isEncrypted) { HandleEncryptedAssertion(context, assertion); } else { HandleAssertion(context, assertion); } } else { Logger.ErrorFormat(ErrorMessages.ArtifactResponseMissingResponse); throw new Saml20Exception(ErrorMessages.ArtifactResponseMissingResponse); } } else { Logger.ErrorFormat(ErrorMessages.SOAPMessageUnsupportedSamlMessage); throw new Saml20Exception(ErrorMessages.SOAPMessageUnsupportedSamlMessage); } }
/// <summary> /// Handles the SOAP. /// </summary> /// <param name="context">The context.</param> /// <param name="inputStream">The input stream.</param> public static void HandleSoap(HttpArtifactBindingBuilder builder, Stream inputStream, Saml2Configuration config, Action<Saml20Assertion> signonCallback, Func<string, object> getFromCache, Action<string, object, DateTime> setInCache, IDictionary<string, object> session) { var parser = new HttpArtifactBindingParser(inputStream); logger.DebugFormat(TraceMessages.SOAPMessageParse, parser.SamlMessage.OuterXml); if (parser.IsArtifactResolve) { logger.Debug(TraceMessages.ArtifactResolveReceived); var idp = IdpSelectionUtil.RetrieveIDPConfiguration(parser.Issuer, config); if (!parser.CheckSamlMessageSignature(idp.Metadata.Keys)) { logger.Error(ErrorMessages.ArtifactResolveSignatureInvalid); throw new Saml20Exception(ErrorMessages.ArtifactResolveSignatureInvalid); } builder.RespondToArtifactResolve(parser.ArtifactResolve, ((XmlDocument)getFromCache(parser.ArtifactResolve.Artifact)).DocumentElement); } else if (parser.IsArtifactResponse) { logger.Debug(TraceMessages.ArtifactResolveReceived); var idp = IdpSelectionUtil.RetrieveIDPConfiguration(parser.Issuer, config); if (!parser.CheckSamlMessageSignature(idp.Metadata.Keys)) { logger.Error(ErrorMessages.ArtifactResponseSignatureInvalid); throw new Saml20Exception(ErrorMessages.ArtifactResponseSignatureInvalid); } var status = parser.ArtifactResponse.Status; if (status.StatusCode.Value != Saml20Constants.StatusCodes.Success) { logger.ErrorFormat(ErrorMessages.ArtifactResponseStatusCodeInvalid, status.StatusCode.Value); throw new Saml20Exception(string.Format(ErrorMessages.ArtifactResponseStatusCodeInvalid, status.StatusCode.Value)); } if (parser.ArtifactResponse.Any.LocalName == Response.ElementName) { Utility.CheckReplayAttack(parser.ArtifactResponse.Any, true, session); var responseStatus = Utility.GetStatusElement(parser.ArtifactResponse.Any); if (responseStatus.StatusCode.Value != Saml20Constants.StatusCodes.Success) { logger.ErrorFormat(ErrorMessages.ArtifactResponseStatusCodeInvalid, responseStatus.StatusCode.Value); throw new Saml20Exception(string.Format(ErrorMessages.ArtifactResponseStatusCodeInvalid, responseStatus.StatusCode.Value)); } bool isEncrypted; var assertion = Utility.GetAssertion(parser.ArtifactResponse.Any, out isEncrypted); if (assertion == null) { logger.Error(ErrorMessages.ArtifactResponseMissingAssertion); throw new Saml20Exception(ErrorMessages.ArtifactResponseMissingAssertion); } var samlAssertion = isEncrypted ? Utility.HandleEncryptedAssertion(assertion, config, getFromCache, setInCache) : Utility.HandleAssertion(assertion, config, getFromCache, setInCache); signonCallback(samlAssertion); } else { logger.ErrorFormat(ErrorMessages.ArtifactResponseMissingResponse); throw new Saml20Exception(ErrorMessages.ArtifactResponseMissingResponse); } } else { logger.ErrorFormat(ErrorMessages.SOAPMessageUnsupportedSamlMessage); throw new Saml20Exception(ErrorMessages.SOAPMessageUnsupportedSamlMessage); } }