コード例 #1
0
        /// <summary>
        /// Handles responses to an artifact resolve message.
        /// </summary>
        /// <param name="idpEndPoint">The IdP endpoint</param>
        /// <param name="artifactResolve">The artifact resolve message.</param>
        public void RespondToArtifactResolve(IDPEndPoint idpEndPoint, ArtifactResolve artifactResolve)
        {
            XmlDocument samlDoc = (XmlDocument)_context.Cache.Get(artifactResolve.Artifact);

            Saml20ArtifactResponse response = Saml20ArtifactResponse.GetDefault();

            response.StatusCode   = Saml20Constants.StatusCodes.Success;
            response.InResponseTo = artifactResolve.ID;
            response.SamlElement  = samlDoc.DocumentElement;

            XmlDocument responseDoc = response.GetXml();

            if (responseDoc.FirstChild is XmlDeclaration)
            {
                responseDoc.RemoveChild(responseDoc.FirstChild);
            }

            var signingCertificate  = FederationConfig.GetConfig().GetFirstValidCertificate();
            var shaHashingAlgorithm = SignatureProviderFactory.ValidateShaHashingAlgorithm(idpEndPoint.ShaHashingAlgorithm);
            var signatureProvider   = SignatureProviderFactory.CreateFromShaHashingAlgorithmName(shaHashingAlgorithm);

            signatureProvider.SignAssertion(responseDoc, response.ID, signingCertificate);

            if (Trace.ShouldTrace(TraceEventType.Information))
            {
                Trace.TraceData(TraceEventType.Information, string.Format(Tracing.RespondToArtifactResolve, artifactResolve.Artifact, responseDoc.OuterXml));
            }
            SendResponseMessage(responseDoc.OuterXml);
        }
コード例 #2
0
        /// <summary>
        /// Return a string containing the metadata XML based on the settings added to this instance.
        /// The resulting XML will be signed, if the AsymmetricAlgoritm property has been set.
        /// </summary>
        public string ToXml(Encoding enc)
        {
            XmlDocument doc = new XmlDocument();

            doc.XmlResolver        = null;
            doc.PreserveWhitespace = true;

            doc.LoadXml(Serialization.SerializeToXmlString(_entity));

            // Add the correct encoding to the head element.
            if (doc.FirstChild is XmlDeclaration)
            {
                ((XmlDeclaration)doc.FirstChild).Encoding = enc.WebName;
            }
            else
            {
                doc.PrependChild(doc.CreateXmlDeclaration("1.0", enc.WebName, null));
            }

            if (Sign)
            {
                var metaDataShaHashingAlgorithm          = FederationConfig.GetConfig().MetaDataShaHashingAlgorithm;
                var validatedMetaDataShaHashingAlgorithm = SignatureProviderFactory.ValidateShaHashingAlgorithm(metaDataShaHashingAlgorithm);
                var signatureProvider = SignatureProviderFactory.CreateFromShaHashingAlgorithmName(validatedMetaDataShaHashingAlgorithm);

                var cert = FederationConfig.GetConfig().SigningCertificate.GetCertificate();
                signatureProvider.SignMetaData(doc, doc.DocumentElement.GetAttribute("ID"), cert);
            }

            return(doc.OuterXml);
        }
コード例 #3
0
        /// <summary>
        /// Creates an artifact for the LogoutRequest and redirects the user to the IdP.
        /// </summary>
        /// <param name="idpEndPoint">The IdP endpoint</param>
        /// <param name="destination">The destination of the request.</param>
        /// <param name="request">The logout request.</param>
        /// <param name="relayState">The query string relay state value to add to the communication</param>
        public void RedirectFromLogout(IDPEndPoint idpEndPoint, IDPEndPointElement destination, Saml20LogoutRequest request, string relayState)
        {
            SAML20FederationConfig config = SAML20FederationConfig.GetConfig();
            Int16       index             = (Int16)config.ServiceProvider.LogoutEndpoint.endPointIndex;
            XmlDocument doc = request.GetXml();
            var         signingCertificate  = FederationConfig.GetConfig().GetFirstValidCertificate();
            var         shaHashingAlgorithm = SignatureProviderFactory.ValidateShaHashingAlgorithm(idpEndPoint.ShaHashingAlgorithm);
            var         signatureProvider   = SignatureProviderFactory.CreateFromShaHashingAlgorithmName(shaHashingAlgorithm);

            signatureProvider.SignAssertion(doc, request.Request.ID, signingCertificate);
            ArtifactRedirect(destination, index, doc, relayState);
        }
コード例 #4
0
        /// <summary>
        /// Resolves an artifact.
        /// </summary>
        /// <returns>A stream containing the artifact response from the IdP</returns>
        public Stream ResolveArtifact()
        {
            Trace.TraceMethodCalled(GetType(), "ResolveArtifact()");

            string artifact = _context.Request.Params["SAMLart"];

            IDPEndPoint idpEndPoint = DetermineIdp(artifact);

            if (idpEndPoint == null)
            {
                throw new InvalidOperationException("Received artifact from unknown IDP.");
            }

            ushort endpointIndex = ArtifactUtil.GetEndpointIndex(artifact);

            string endpointUrl = idpEndPoint.metadata.GetARSEndpoint(endpointIndex);

            Saml20ArtifactResolve resolve = Saml20ArtifactResolve.GetDefault();

            resolve.Artifact = artifact;

            XmlDocument doc = resolve.GetXml();

            if (doc.FirstChild is XmlDeclaration)
            {
                doc.RemoveChild(doc.FirstChild);
            }

            var signingCertificate  = FederationConfig.GetConfig().GetFirstValidCertificate();
            var shaHashingAlgorithm = SignatureProviderFactory.ValidateShaHashingAlgorithm(idpEndPoint.ShaHashingAlgorithm);
            var signatureProvider   = SignatureProviderFactory.CreateFromShaHashingAlgorithmName(shaHashingAlgorithm);

            signatureProvider.SignAssertion(doc, resolve.ID, signingCertificate);

            string artifactResolveString = doc.OuterXml;

            if (Trace.ShouldTrace(TraceEventType.Information))
            {
                Trace.TraceData(TraceEventType.Information, string.Format(Tracing.ResolveArtifact, artifact, idpEndPoint.Id, endpointIndex, endpointUrl, artifactResolveString));
            }

            return(GetResponse(endpointUrl, artifactResolveString, idpEndPoint.ArtifactResolution));
        }
コード例 #5
0
        /// <summary>
        /// Performs the attribute query against the specified IdP endpoint and adds the resulting attributes to Saml20Identity.Current.
        /// </summary>
        /// <param name="context">The http context.</param>
        /// <param name="endPoint">The IdP to perform the query against.</param>
        /// <param name="nameIdFormat">The nameid format.</param>
        public void PerformQuery(HttpContext context, IDPEndPoint endPoint, string nameIdFormat)
        {
            Trace.TraceMethodCalled(GetType(), "PerformQuery()");

            HttpSOAPBindingBuilder builder = new HttpSOAPBindingBuilder(context);

            NameID name = new NameID();

            name.Value  = Saml20Identity.Current.Name;
            name.Format = nameIdFormat;
            _attrQuery.Subject.Items = new object[] { name };

            _attrQuery.SamlAttribute = _attributes.ToArray();
            XmlDocument query = new XmlDocument();

            query.XmlResolver = null;
            query.LoadXml(Serialization.SerializeToXmlString(_attrQuery));

            var signingCertificate  = FederationConfig.GetConfig().SigningCertificate.GetCertificate();
            var shaHashingAlgorithm = SignatureProviderFactory.ValidateShaHashingAlgorithm(endPoint.ShaHashingAlgorithm);
            var signatureProvider   = SignatureProviderFactory.CreateFromShaHashingAlgorithmName(shaHashingAlgorithm);

            signatureProvider.SignAssertion(query, ID, signingCertificate);
            if (query.FirstChild is XmlDeclaration)
            {
                query.RemoveChild(query.FirstChild);
            }

            Stream s;

            if (Trace.ShouldTrace(TraceEventType.Information))
            {
                Trace.TraceData(TraceEventType.Information, string.Format(Tracing.SendAttrQuery, endPoint.metadata.GetAttributeQueryEndpointLocation(), query.OuterXml));
            }

            try
            {
                s = builder.GetResponse(endPoint.metadata.GetAttributeQueryEndpointLocation(), query.OuterXml,
                                        endPoint.AttributeQuery);
            }
            catch (Exception e)
            {
                Trace.TraceData(TraceEventType.Error, e.ToString());
                throw;
            }

            HttpSOAPBindingParser parser = new HttpSOAPBindingParser(s);

            Status status = parser.GetStatus();

            if (status.StatusCode.Value != Saml20Constants.StatusCodes.Success)
            {
                Trace.TraceData(TraceEventType.Error,
                                string.Format(Tracing.AttrQueryStatusError, Serialization.SerializeToXmlString(status)));
                throw new Saml20Exception(status.StatusMessage);
            }

            bool isEncrypted;

            XmlElement xmlAssertion = Saml20SignonHandler.GetAssertion(parser.SamlMessage, out isEncrypted);

            if (isEncrypted)
            {
                Saml20EncryptedAssertion ass =
                    new Saml20EncryptedAssertion(
                        (RSA)FederationConfig.GetConfig().SigningCertificate.GetCertificate().PrivateKey);
                ass.LoadXml(xmlAssertion);
                ass.Decrypt();
                xmlAssertion = ass.Assertion.DocumentElement;
            }

            Saml20Assertion assertion =
                new Saml20Assertion(xmlAssertion, null,
                                    AssertionProfile.Core, endPoint.QuirksMode);

            assertion.Validate(DateTime.UtcNow);

            if (Trace.ShouldTrace(TraceEventType.Information))
            {
                Trace.TraceData(TraceEventType.Information, string.Format(Tracing.AttrQueryAssertion, xmlAssertion == null ? string.Empty : xmlAssertion.OuterXml));
            }

            IEnumerable <string> validationFailures;

            if (!assertion.CheckSignature(Saml20SignonHandler.GetTrustedSigners(endPoint.metadata.Keys, endPoint, out validationFailures)))
            {
                Trace.TraceData(TraceEventType.Error, Resources.SignatureInvalid);
                throw new Saml20Exception(Resources.SignatureInvalid);
            }

            foreach (SamlAttribute attr in assertion.Attributes)
            {
                Saml20Identity.Current.AddAttributeFromQuery(attr.Name, attr);
            }
        }
コード例 #6
0
        private void TransferClient(IDPEndPoint idpEndpoint, Saml20AuthnRequest request, HttpContext context)
        {
            AuditLogging.AssertionId = request.ID;
            AuditLogging.IdpId       = 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;

            bool   isPassive;
            string isPassiveAsString = context.Request.Params[IDPIsPassive];

            if (bool.TryParse(isPassiveAsString, out isPassive))
            {
                request.IsPassive = isPassive;
            }

            if (idpEndpoint.IsPassive)
            {
                request.IsPassive = true;
            }

            bool   forceAuthn;
            string forceAuthnAsString = context.Request.Params[IDPForceAuthn];

            if (bool.TryParse(forceAuthnAsString, out forceAuthn))
            {
                request.ForceAuthn = forceAuthn;
            }

            if (idpEndpoint.ForceAuthn)
            {
                request.ForceAuthn = true;
            }

            if (idpEndpoint.SSOEndpoint != null)
            {
                if (!string.IsNullOrEmpty(idpEndpoint.SSOEndpoint.ForceProtocolBinding))
                {
                    request.ProtocolBinding = idpEndpoint.SSOEndpoint.ForceProtocolBinding;
                }
            }

            //Save request message id to session
            SessionStore.CurrentSession[SessionConstants.ExpectedInResponseTo] = request.ID;

            var shaHashingAlgorithm = SignatureProviderFactory.ValidateShaHashingAlgorithm(idpEndpoint.ShaHashingAlgorithm);

            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;
                builder.ShaHashingAlgorithm = shaHashingAlgorithm;
                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();
                var         signingCertificate = FederationConfig.GetConfig().SigningCertificate.GetCertificate();
                var         signatureProvider  = SignatureProviderFactory.CreateFromShaHashingAlgorithmName(shaHashingAlgorithm);
                signatureProvider.SignAssertion(req, request.ID, signingCertificate);
                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(idpEndpoint, destination, request);
            }

            HandleError(context, Resources.BindingError);
        }
コード例 #7
0
        private void HandleRequest(HttpContext context)
        {
            Trace.TraceMethodCalled(GetType(), "HandleRequest()");

            //Fetch config object
            SAML20FederationConfig config = SAML20FederationConfig.GetConfig();

            LogoutRequest logoutRequest = null;
            IDPEndPoint   endpoint      = null;
            string        message       = string.Empty;

            //Build the response object
            var response = new Saml20LogoutResponse();

            response.Issuer     = config.ServiceProvider.ID;
            response.StatusCode = Saml20Constants.StatusCodes.Success; // Default success. Is overwritten if something fails.

            if (context.Request.RequestType == "GET")                  // HTTP Redirect binding
            {
                HttpRedirectBindingParser parser = new HttpRedirectBindingParser(context.Request.Url);
                AuditLogging.logEntry(Direction.IN, Operation.LOGOUTREQUEST,
                                      string.Format("Binding: redirect, Signature algorithm: {0}  Signature:  {1}, Message: {2}", parser.SignatureAlgorithm, parser.Signature, parser.Message));

                if (!parser.IsSigned)
                {
                    AuditLogging.logEntry(Direction.IN, Operation.LOGOUTREQUEST, "Signature not present, msg: " + parser.Message);
                    response.StatusCode = Saml20Constants.StatusCodes.RequestDenied;
                }

                logoutRequest = parser.LogoutRequest;
                endpoint      = config.FindEndPoint(logoutRequest.Issuer.Value);

                if (endpoint.metadata == null)
                {
                    AuditLogging.logEntry(Direction.IN, Operation.LOGOUTREQUEST, "Cannot find metadata for IdP: " + logoutRequest.Issuer.Value);
                    // Not able to return a response as we do not know the IdP.
                    HandleError(context, "Cannot find metadata for IdP " + logoutRequest.Issuer.Value);
                    return;
                }

                Saml20MetadataDocument metadata = endpoint.metadata;

                if (!parser.VerifySignature(metadata.GetKeys(KeyTypes.signing)))
                {
                    AuditLogging.logEntry(Direction.IN, Operation.LOGOUTREQUEST, "Request has been denied. Invalid signature redirect-binding, msg: " + parser.Message);
                    response.StatusCode = Saml20Constants.StatusCodes.RequestDenied;
                }

                message = parser.Message;
            }
            else if (context.Request.RequestType == "POST") // HTTP Post binding
            {
                HttpPostBindingParser parser = new HttpPostBindingParser(context);
                AuditLogging.logEntry(Direction.IN, Operation.LOGOUTREQUEST,
                                      "Binding: POST, Message: " + parser.Message);

                if (!parser.IsSigned())
                {
                    AuditLogging.logEntry(Direction.IN, Operation.LOGOUTREQUEST, "Signature not present, msg: " + parser.Message);
                    response.StatusCode = Saml20Constants.StatusCodes.RequestDenied;
                }

                logoutRequest = parser.LogoutRequest;
                endpoint      = config.FindEndPoint(logoutRequest.Issuer.Value);
                if (endpoint.metadata == null)
                {
                    AuditLogging.logEntry(Direction.IN, Operation.LOGOUTREQUEST, "Cannot find metadata for IdP");
                    // Not able to return a response as we do not know the IdP.
                    HandleError(context, "Cannot find metadata for IdP " + logoutRequest.Issuer.Value);
                    return;
                }

                Saml20MetadataDocument metadata = endpoint.metadata;

                // handle a logout-request
                if (!parser.CheckSignature(metadata.GetKeys(KeyTypes.signing)))
                {
                    AuditLogging.logEntry(Direction.IN, Operation.LOGOUTREQUEST, "Request has been denied. Invalid signature post-binding, msg: " + parser.Message);
                    response.StatusCode = Saml20Constants.StatusCodes.RequestDenied;
                }

                message = parser.Message;
            }
            else
            {
                //Error: We don't support HEAD, PUT, CONNECT, TRACE, DELETE and OPTIONS
                // Not able to return a response as we do not understand the request.
                HandleError(context, string.Format(Resources.UnsupportedRequestType, context.Request.RequestType));
                return;
            }

            AuditLogging.logEntry(Direction.IN, Operation.LOGOUTREQUEST, message);

            // Check that idp in session and request matches.
            string idpRequest = logoutRequest.Issuer.Value;

            // SessionFactory.SessionContext.Current.New is never the first call to Current due to the logic in Application_AuthenticateRequest() ... Saml20Identity.IsInitialized()
            // Hence we need to check on Saml20Identity.IsInitialized() instead of using SessionFactory.SessionContext.Current.New.
            bool isOioSamlSessionActive = Saml20Identity.IsInitialized();

            if (isOioSamlSessionActive)
            {
                object idpId = Saml20PrincipalCache.GetSaml20AssertionLite().Issuer;

                if (idpId != null && idpId.ToString() != idpRequest)
                {
                    AuditLogging.logEntry(Direction.IN, Operation.LOGOUTREQUEST, string.Format(Resources.IdPMismatchBetweenRequestAndSession, idpId, idpRequest), message);
                    response.StatusCode = Saml20Constants.StatusCodes.RequestDenied;
                }
            }
            else
            {
                // All other status codes than Success results in the IdP throwing an error page. Therefore we return default Success even if we do not have a session.
                AuditLogging.logEntry(Direction.IN, Operation.LOGOUTREQUEST, "Session does not exist. Continues the redirect logout procedure with status code success." + idpRequest, message);
            }

            //  Only logout if request is valid and we are working on an existing Session.
            if (Saml20Constants.StatusCodes.Success == response.StatusCode && isOioSamlSessionActive)
            {
                // Execute all actions that the service provider has configured
                DoLogout(context, true);
            }

            // Update the response object with informations that first is available when request has been parsed.
            IDPEndPointElement destination = DetermineEndpointConfiguration(SAMLBinding.REDIRECT, endpoint.SLOEndpoint, endpoint.metadata.SLOEndpoints());

            response.Destination  = destination.Url;
            response.InResponseTo = logoutRequest.ID;

            //Respond using redirect binding
            var shaHashingAlgorithm = SignatureProviderFactory.ValidateShaHashingAlgorithm(endpoint.ShaHashingAlgorithm);

            if (destination.Binding == SAMLBinding.REDIRECT)
            {
                HttpRedirectBindingBuilder builder = new HttpRedirectBindingBuilder();
                builder.RelayState          = context.Request.Params["RelayState"];
                builder.Response            = response.GetXml().OuterXml;
                builder.signingKey          = FederationConfig.GetConfig().SigningCertificate.GetCertificate().PrivateKey;
                builder.ShaHashingAlgorithm = shaHashingAlgorithm;
                string s = destination.Url + "?" + builder.ToQuery();
                context.Response.Redirect(s, true);
                return;
            }

            //Respond using post binding
            if (destination.Binding == SAMLBinding.POST)
            {
                HttpPostBindingBuilder builder = new HttpPostBindingBuilder(destination);
                builder.Action = SAMLAction.SAMLResponse;
                XmlDocument responseDocument   = response.GetXml();
                var         signingCertificate = FederationConfig.GetConfig().SigningCertificate.GetCertificate();
                var         signatureProvider  = SignatureProviderFactory.CreateFromShaHashingAlgorithmName(shaHashingAlgorithm);
                signatureProvider.SignAssertion(responseDocument, response.ID, signingCertificate);
                builder.Response   = responseDocument.OuterXml;
                builder.RelayState = context.Request.Params["RelayState"];
                builder.GetPage().ProcessRequest(context);
                return;
            }
        }
コード例 #8
0
        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;

            request.SubjectToLogOut.Format = Saml20PrincipalCache.GetSaml20AssertionLite().Subject.Format;

            var shaHashingAlgorithm = SignatureProviderFactory.ValidateShaHashingAlgorithm(endpoint.ShaHashingAlgorithm);

            if (destination.Binding == SAMLBinding.POST)
            {
                HttpPostBindingBuilder builder = new HttpPostBindingBuilder(destination);
                request.Destination           = destination.Url;
                request.Reason                = Saml20Constants.Reasons.User;
                request.SubjectToLogOut.Value = Saml20PrincipalCache.GetSaml20AssertionLite().Subject.Value;
                request.SessionIndex          = Saml20PrincipalCache.GetSaml20AssertionLite().SessionIndex;
                XmlDocument requestDocument    = request.GetXml();
                var         signingCertificate = FederationConfig.GetConfig().SigningCertificate.GetCertificate();
                var         signatureProvider  = SignatureProviderFactory.CreateFromShaHashingAlgorithmName(shaHashingAlgorithm);
                signatureProvider.SignAssertion(requestDocument, request.ID, signingCertificate);
                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 = Saml20PrincipalCache.GetSaml20AssertionLite().Subject.Value;
                request.SessionIndex          = Saml20PrincipalCache.GetSaml20AssertionLite().SessionIndex;
                builder.Request               = request.GetXml().OuterXml;
                builder.ShaHashingAlgorithm   = shaHashingAlgorithm;

                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 = Saml20PrincipalCache.GetSaml20AssertionLite().Subject.Value;
                request.SessionIndex          = Saml20PrincipalCache.GetSaml20AssertionLite().SessionIndex;

                HttpArtifactBindingBuilder builder = new HttpArtifactBindingBuilder(context);
                AuditLogging.logEntry(Direction.OUT, Operation.LOGOUTREQUEST, "Method: Artifact");
                builder.RedirectFromLogout(endpoint, destination, request, Guid.NewGuid().ToString("N"));
            }

            HandleError(context, Resources.BindingError);
        }
コード例 #9
0
        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);
            var         shaHashingAlgorithm = SignatureProviderFactory.ValidateShaHashingAlgorithm(idp.ShaHashingAlgorithm);

            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(idp, 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;
                    IDPEndPointElement destination =
                        DetermineEndpointConfiguration(SAMLBinding.REDIRECT, idp.SLOEndpoint, idp.metadata.SLOEndpoints());

                    builder.RedirectFromLogout(idp, 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));
                }

                Saml20LogoutResponse response = new Saml20LogoutResponse();

                if (!parser.IsSigned())
                {
                    AuditLogging.logEntry(Direction.IN, Operation.LOGOUTREQUEST, "Signature not present in SOAP logout request, msg: " + parser.SamlMessage.OuterXml);
                    response.StatusCode = Saml20Constants.StatusCodes.RequestDenied;
                }

                if (idp.metadata == null)
                {
                    AuditLogging.logEntry(Direction.IN, Operation.LOGOUTREQUEST, "Cannot find metadata for IdP: " + parser.Issuer);
                    // Not able to process the request as we do not know the IdP.
                    response.StatusCode = Saml20Constants.StatusCodes.NoAvailableIDP;
                }
                else
                {
                    Saml20MetadataDocument metadata = idp.metadata;

                    if (!parser.CheckSignature(metadata.GetKeys(KeyTypes.signing)))
                    {
                        AuditLogging.logEntry(Direction.IN, Operation.LOGOUTREQUEST, "Request has been denied. Invalid signature SOAP logout, msg: " + parser.SamlMessage.OuterXml);
                        response.StatusCode = Saml20Constants.StatusCodes.RequestDenied;
                    }
                }

                if (parser.GetNameID() != null && !string.IsNullOrEmpty(parser.GetNameID().Value))
                {
                    DoSoapLogout(context, parser.GetNameID().Value);
                }
                else
                {
                    AuditLogging.logEntry(Direction.IN, Operation.LOGOUTREQUEST, "Request has been denied. No user ID was supplied in SOAP logout request, msg: " + parser.SamlMessage.OuterXml);
                    response.StatusCode = Saml20Constants.StatusCodes.NoAuthnContext;
                }

                LogoutRequest req = parser.LogoutRequest;

                //Build the response object
                response.Issuer       = config.ServiceProvider.ID;
                response.StatusCode   = Saml20Constants.StatusCodes.Success;
                response.InResponseTo = req.ID;
                XmlDocument doc = response.GetXml();
                var         signingCertificate = FederationConfig.GetConfig().SigningCertificate.GetCertificate();
                var         signatureProvider  = SignatureProviderFactory.CreateFromShaHashingAlgorithmName(shaHashingAlgorithm);
                signatureProvider.SignAssertion(doc, response.ID, signingCertificate);
                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));
                }
            }
        }
コード例 #10
0
        private void TransferClient(IDPEndPoint idpEndpoint, Saml20AuthnRequest request, HttpContext context)
        {
            AuditLogging.AssertionId = request.ID;
            AuditLogging.IdpId       = 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;


            bool   isPassive;
            string isPassiveAsString = context.Request.Params[IDPIsPassive];

            if (bool.TryParse(isPassiveAsString, out isPassive))
            {
                request.IsPassive = isPassive;
            }

            var requestContextItems = new List <(string value, ItemsChoiceType7 type)>();

            if (!string.IsNullOrEmpty(context.Request.Params[NsisLoa]))
            {
                string demandedLevelOfAssurance = context.Request.Params[NsisLoa].ToString();

                if (!new[] { "Low", "Substantial", "High" }.Contains(demandedLevelOfAssurance))
                {
                    HandleError(context, string.Format(Resources.DemandingLevelOfAssuranceError, demandedLevelOfAssurance));
                    return;
                }

                requestContextItems.Add((DKSaml20NsisLoaAttribute.NAME + "/" + demandedLevelOfAssurance, ItemsChoiceType7.AuthnContextClassRef));

                // Persist demanded LoA in session to be able to verify assertion
                SessionStore.CurrentSession[SessionConstants.ExpectedNsisLoa] = demandedLevelOfAssurance;

                Trace.TraceData(TraceEventType.Information, string.Format(Tracing.DemandingLevelOfAssurance, demandedLevelOfAssurance));
            }

            if (!string.IsNullOrEmpty(context.Request.Params[Profile]))
            {
                string demandedProfile = context.Request.Params[Profile].ToString();

                if (!new[] { "Professional", "Person" }.Contains(demandedProfile))
                {
                    HandleError(context, string.Format(Resources.DemandingProfileError, demandedProfile));
                    return;
                }
                requestContextItems.Add(("https://data.gov.dk/eid/" + demandedProfile, ItemsChoiceType7.AuthnContextClassRef));

                Trace.TraceData(TraceEventType.Information, string.Format(Tracing.DemandingProfile, demandedProfile));
            }
            if (requestContextItems.Count > 0)
            {
                request.Request.RequestedAuthnContext                  = new RequestedAuthnContext();
                request.Request.RequestedAuthnContext.Comparison       = AuthnContextComparisonType.minimum;
                request.Request.RequestedAuthnContext.ItemsElementName = requestContextItems.Select(x => x.type).ToArray();
                request.Request.RequestedAuthnContext.Items            = requestContextItems.Select(x => x.value).ToArray();
            }

            if (idpEndpoint.IsPassive)
            {
                request.IsPassive = true;
            }

            bool   forceAuthn;
            string forceAuthnAsString = context.Request.Params[IDPForceAuthn];

            if (bool.TryParse(forceAuthnAsString, out forceAuthn))
            {
                request.ForceAuthn = forceAuthn;
            }

            if (idpEndpoint.ForceAuthn)
            {
                request.ForceAuthn = true;
            }

            if (idpEndpoint.SSOEndpoint != null)
            {
                if (!string.IsNullOrEmpty(idpEndpoint.SSOEndpoint.ForceProtocolBinding))
                {
                    request.ProtocolBinding = idpEndpoint.SSOEndpoint.ForceProtocolBinding;
                }
            }

            //Save request message id to session
            SessionStore.CurrentSession[SessionConstants.ExpectedInResponseTo] = request.ID;

            var shaHashingAlgorithm = SignatureProviderFactory.ValidateShaHashingAlgorithm(idpEndpoint.ShaHashingAlgorithm);

            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;
                builder.ShaHashingAlgorithm = shaHashingAlgorithm;
                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();
                var         signingCertificate = FederationConfig.GetConfig().GetFirstValidCertificate();
                var         signatureProvider  = SignatureProviderFactory.CreateFromShaHashingAlgorithmName(shaHashingAlgorithm);
                signatureProvider.SignAssertion(req, request.ID, signingCertificate);
                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(idpEndpoint, destination, request);
            }

            HandleError(context, Resources.BindingError);
        }