public void ParserCanEncodeAndDecodeRequestWithRelayState()
{
// Arrange
var request = string.Empty.PadRight(140, 'l');
var relaystate = "A relaystate test. @@@!!!&&&///";
var bindingBuilder = new SAML2.Bindings.HttpRedirectBindingBuilder
{
Request = request,
RelayState = relaystate
};
var query = bindingBuilder.ToQuery();
var coll = QueryToNameValueCollection(query);
var url = new Uri("http://localhost/?" + query);
// Act
var bindingParser = new HttpRedirectBindingParser(url);
// Assert
Assert.AreEqual(2, coll.Count);
Assert.IsTrue(bindingParser.IsRequest);
Assert.IsFalse(bindingParser.IsResponse);
Assert.IsFalse(bindingParser.IsSigned);
Assert.IsNotNull(bindingParser.RelayState);
Assert.AreEqual(relaystate, bindingParser.RelayStateDecoded);
Assert.AreEqual(request, bindingParser.Message);
}
public void DoesNotAllowRequestAndResponseToBothBeSet()
{
// Arrange
var binding = new HttpRedirectBindingBuilder
{
Request = "Request"
};
// Act
binding.Response = "Response";
// Assert
Assert.Fail("HttpRedirectBinding did not throw an exception when both Request and Response were set.");
}
public void ParserThrowsExceptionWhenTryingToVerifySignatureOfUnsignedRequest()
{
// Arrange
var request = string.Empty.PadLeft(350, 'A') + "ֶ״ֵזרו";
var bindingBuilder = new SAML2.Bindings.HttpRedirectBindingBuilder {
Request = request
};
var query = bindingBuilder.ToQuery();
var url = new Uri("http://localhost/?" + query);
var bindingParser = new HttpRedirectBindingParser(url);
// Act
Assert.Throws <InvalidOperationException>(() => bindingParser.CheckSignature(new RSACryptoServiceProvider()));
}
public void ParserThrowsExceptionWhenTryingToVerifySignatureOfUnsignedRequest()
{
// Arrange
var request = string.Empty.PadLeft(350, 'A') + "ֶ״ֵזרו";
var bindingBuilder = new SAML2.Bindings.HttpRedirectBindingBuilder {
Request = request
};
var query = bindingBuilder.ToQuery();
var url = new Uri("http://localhost/?" + query);
var bindingParser = new HttpRedirectBindingParser(url);
// Act
bindingParser.CheckSignature(new RSACryptoServiceProvider());
// Assert
Assert.Fail("Trying to verify signature of an unsigned request should have thrown an exception.");
}
public void ParserCanEncodeAndDecodeRequest()
{
// Arrange
var request = string.Empty.PadLeft(350, 'A') + "ֶ״ֵזרו";
var bindingBuilder = new SAML2.Bindings.HttpRedirectBindingBuilder {
Request = request
};
var query = bindingBuilder.ToQuery();
var coll = QueryToNameValueCollection(query);
var url = new Uri("http://localhost/?" + query);
// Act
var bindingParser = new HttpRedirectBindingParser(url);
// Assert
Assert.That(coll.Count == 1);
Assert.That(bindingParser.IsRequest);
Assert.That(!bindingParser.IsResponse);
Assert.That(!bindingParser.IsSigned);
Assert.AreEqual(request, bindingParser.Message);
}
public void ParserCanSignAuthnRequestWithDsaKey()
{
// Arrange
var key = new DSACryptoServiceProvider();
var evilKey = new DSACryptoServiceProvider();
var binding = new SAML2.Bindings.HttpRedirectBindingBuilder
{
Request = string.Empty.PadLeft(500, 'a'),
SigningKey = key
};
var url = new Uri("http://localhost/?" + binding.ToQuery());
// Act
var parser = new HttpRedirectBindingParser(url);
// Assert
Assert.That(parser.IsSigned);
Assert.That(parser.IsRequest);
Assert.That(parser.CheckSignature(key));
Assert.IsFalse(parser.CheckSignature(evilKey));
}
/// <summary>
/// Handles the request.
/// </summary>
/// <param name="context">The context.</param>
private void HandleRequest(HttpContext context)
{
Logger.DebugFormat(TraceMessages.LogoutRequestReceived);
// Fetch the endpoint configuration
var idp = RetrieveIDPConfiguration(StateService.Get<string>(IdpLoginSessionKey));
var destination = DetermineEndpointConfiguration(BindingType.Redirect, idp.Endpoints.LogoutEndpoint, idp.Metadata.IDPSLOEndpoints);
// Fetch config object
var config = Saml2Config.GetConfig();
// Build the response object
var response = new Saml20LogoutResponse
{
Issuer = config.ServiceProvider.Id,
Destination = destination.Url,
StatusCode = Saml20Constants.StatusCodes.Success
};
string message;
if (context.Request.RequestType == "GET")
{
// HTTP Redirect binding
var parser = new HttpRedirectBindingParser(context.Request.Url);
Logger.DebugFormat(TraceMessages.LogoutRequestRedirectBindingParse, parser.Message, parser.SignatureAlgorithm, parser.Signature);
var endpoint = config.IdentityProviders.FirstOrDefault(x => x.Id == idp.Id);
if (endpoint == null || endpoint.Metadata == null)
{
Logger.ErrorFormat(ErrorMessages.UnknownIdentityProvider, idp.Id);
throw new Saml20Exception(string.Format(ErrorMessages.UnknownIdentityProvider, idp.Id));
}
var metadata = endpoint.Metadata;
if (!parser.VerifySignature(metadata.GetKeys(KeyTypes.Signing)))
{
Logger.Error(ErrorMessages.RequestSignatureInvalid);
throw new Saml20Exception(ErrorMessages.RequestSignatureInvalid);
}
message = parser.Message;
}
else if (context.Request.RequestType == "POST")
{
// HTTP Post binding
var parser = new HttpPostBindingParser(context);
Logger.DebugFormat(TraceMessages.LogoutRequestPostBindingParse, parser.Message);
if (!parser.IsSigned)
{
Logger.Error(ErrorMessages.RequestSignatureMissing);
throw new Saml20Exception(ErrorMessages.RequestSignatureMissing);
}
var endpoint = config.IdentityProviders.FirstOrDefault(x => x.Id == idp.Id);
if (endpoint == null || endpoint.Metadata == null)
{
Logger.ErrorFormat(ErrorMessages.UnknownIdentityProvider, idp.Id);
throw new Saml20Exception(string.Format(ErrorMessages.UnknownIdentityProvider, idp.Id));
}
var metadata = endpoint.Metadata;
// Check signature
if (!parser.CheckSignature(metadata.GetKeys(KeyTypes.Signing)))
{
Logger.Error(ErrorMessages.RequestSignatureInvalid);
throw new Saml20Exception(ErrorMessages.RequestSignatureInvalid);
}
message = parser.Message;
}
else
{
// Error: We don't support HEAD, PUT, CONNECT, TRACE, DELETE and OPTIONS
Logger.ErrorFormat(ErrorMessages.UnsupportedRequestType, context.Request.RequestType);
throw new Saml20Exception(string.Format(ErrorMessages.UnsupportedRequestType, context.Request.RequestType));
}
Logger.DebugFormat(TraceMessages.LogoutRequestParsed, message);
// Log the user out locally
DoLogout(context, true);
var req = Serialization.DeserializeFromXmlString<LogoutRequest>(message);
response.InResponseTo = req.Id;
// Respond using redirect binding
if (destination.Binding == BindingType.Redirect)
{
var builder = new HttpRedirectBindingBuilder
{
RelayState = context.Request.Params["RelayState"],
Response = response.GetXml().OuterXml,
SigningKey = Saml2Config.GetConfig().ServiceProvider.SigningCertificate.GetCertificate().PrivateKey
};
Logger.DebugFormat(TraceMessages.LogoutResponseSent, builder.Response);
context.Response.Redirect(destination.Url + "?" + builder.ToQuery(), true);
return;
}
// Respond using post binding
if (destination.Binding == BindingType.Post)
{
var builder = new HttpPostBindingBuilder(destination)
{
Action = SamlActionType.SAMLResponse
};
var responseDocument = response.GetXml();
Logger.DebugFormat(TraceMessages.LogoutResponseSent, responseDocument.OuterXml);
XmlSignatureUtils.SignDocument(responseDocument, response.Id);
builder.Response = responseDocument.OuterXml;
builder.RelayState = context.Request.Params["RelayState"];
builder.GetPage().ProcessRequest(context);
}
}
/// <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);
}
}
public void ParserThrowsExceptionWhenTryingToVerifySignatureOfUnsignedRequest()
{
// Arrange
var request = string.Empty.PadLeft(350, 'A') + "ֶ״ֵזרו";
var bindingBuilder = new SAML2.Bindings.HttpRedirectBindingBuilder { Request = request };
var query = bindingBuilder.ToQuery();
var url = new Uri("http://localhost/?" + query);
var bindingParser = new HttpRedirectBindingParser(url);
// Act
bindingParser.CheckSignature(new RSACryptoServiceProvider());
// Assert
Assert.Fail("Trying to verify signature of an unsigned request should have thrown an exception.");
}
public void ParserCanSignAuthnRequestWithRsaKey()
{
// Arrange
var key = new RSACryptoServiceProvider();
var evilKey = new RSACryptoServiceProvider();
var binding = new SAML2.Bindings.HttpRedirectBindingBuilder
{
Request = string.Empty.PadLeft(500, 'a'),
SigningKey = key
};
var url = new Uri("http://localhost/?" + binding.ToQuery());
// Act
var parser = new HttpRedirectBindingParser(url);
// Assert
Assert.That(parser.IsSigned);
Assert.That(parser.IsRequest);
Assert.That(!parser.IsResponse);
Assert.That(parser.CheckSignature(key));
Assert.IsFalse(parser.CheckSignature(evilKey));
}
public void ParserCanEncodeAndDecodeRequestWithRelayState()
{
// Arrange
var request = string.Empty.PadRight(140, 'l');
var relaystate = "A relaystate test. @@@!!!&&&///";
var bindingBuilder = new SAML2.Bindings.HttpRedirectBindingBuilder
{
Request = request,
RelayState = relaystate
};
var query = bindingBuilder.ToQuery();
var coll = QueryToNameValueCollection(query);
var url = new Uri("http://localhost/?" + query);
// Act
var bindingParser = new HttpRedirectBindingParser(url);
// Assert
Assert.AreEqual(2, coll.Count);
Assert.IsTrue(bindingParser.IsRequest);
Assert.IsFalse(bindingParser.IsResponse);
Assert.IsFalse(bindingParser.IsSigned);
Assert.IsNotNull(bindingParser.RelayState);
Assert.AreEqual(relaystate, bindingParser.RelayStateDecoded);
Assert.AreEqual(request, bindingParser.Message);
}
public void ParserCanEncodeAndDecodeRequest()
{
// Arrange
var request = string.Empty.PadLeft(350, 'A') + "ֶ״ֵזרו";
var bindingBuilder = new SAML2.Bindings.HttpRedirectBindingBuilder { Request = request };
var query = bindingBuilder.ToQuery();
var coll = QueryToNameValueCollection(query);
var url = new Uri("http://localhost/?" + query);
// Act
var bindingParser = new HttpRedirectBindingParser(url);
// Assert
Assert.That(coll.Count == 1);
Assert.That(bindingParser.IsRequest);
Assert.That(!bindingParser.IsResponse);
Assert.That(!bindingParser.IsSigned);
Assert.AreEqual(request, bindingParser.Message);
}
public void EncodesRelayStateForRequests()
{
// Arrange
var relaystate = string.Empty.PadRight(10, 'A');
var bindingBuilder = new HttpRedirectBindingBuilder
{
Request = "A random request... !!!! .... ",
RelayState = relaystate
};
// Act
var query = bindingBuilder.ToQuery();
// Assert
Assert.That(!query.Contains(relaystate));
}
/// <summary>
/// Transfers the client.
/// </summary>
/// <param name="idp">The identity provider.</param>
/// <param name="context">The context.</param>
private void TransferClient(IdentityProvider idp, HttpContext context, Saml2Configuration config)
{
var request = Saml20LogoutRequest.GetDefault(config);
// Determine which endpoint to use from the configuration file or the endpoint metadata.
var destination = IdpSelectionUtil.DetermineEndpointConfiguration(BindingType.Redirect, idp.Endpoints.DefaultLogoutEndpoint, idp.Metadata.IDPSLOEndpoints);
request.Destination = destination.Url;
var nameIdFormat = (string)context.Session[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 = (string)context.Session[IdpNameId];
request.SessionIndex = (string)context.Session[IdpSessionIdKey];
var requestDocument = request.GetXml();
XmlSignatureUtils.SignDocument(requestDocument, request.Id, config.ServiceProvider.SigningCertificate);
builder.Request = requestDocument.OuterXml;
Logger.DebugFormat(TraceMessages.LogoutRequestSent, idp.Id, "POST", builder.Request);
context.Response.Write(builder.GetPage());
context.Response.End();
return;
}
// Handle Redirect binding
if (destination.Binding == BindingType.Redirect)
{
request.Destination = destination.Url;
request.Reason = Saml20Constants.Reasons.User;
request.SubjectToLogOut.Value = (string)context.Session[IdpNameId];
request.SessionIndex = (string)context.Session[IdpSessionIdKey];
var builder = new HttpRedirectBindingBuilder
{
Request = request.GetXml().OuterXml,
SigningKey = config.ServiceProvider.SigningCertificate.PrivateKey
};
var redirectUrl = destination.Url + (destination.Url.Contains("?") ? "&" : "?") + 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 = (string)context.Session[IdpNameId];
request.SessionIndex = (string)context.Session[IdpSessionIdKey];
Logger.DebugFormat(TraceMessages.LogoutRequestSent, idp.Id, "ARTIFACT", request.GetXml().OuterXml);
var builder = GetBuilder(context);
builder.RedirectFromLogout(destination, request, Guid.NewGuid().ToString("N"), (s, o) => context.Cache.Insert(s, o, null, DateTime.Now.AddMinutes(1), Cache.NoSlidingExpiration));
}
Logger.Error(ErrorMessages.EndpointBindingInvalid);
throw new Saml20Exception(ErrorMessages.EndpointBindingInvalid);
}
/// <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);
}
public void DoesNotEncodeRelayStateForResponse()
{
// Arrange
var relaystate = string.Empty.PadRight(10, 'A');
var bindingBuilder = new HttpRedirectBindingBuilder
{
RelayState = relaystate,
Response = "A random response... !!!! .... "
};
// Act
var query = bindingBuilder.ToQuery();
// Assert
Assert.That(query.Contains(relaystate));
}
/// <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(IdentityProvider identityProvider, Saml20AuthnRequest request, HttpContext context, Saml2Configuration config)
{
IdentityProviderEndpoint destination = ConfigureRequest(identityProvider, request, context);
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, config.ServiceProvider.SigningCertificate);
postBuilder.Request = requestXml.OuterXml;
Logger.DebugFormat(TraceMessages.AuthnRequestSent, postBuilder.Request);
context.Response.Write(postBuilder.GetPage());
break;
case BindingType.Artifact:
Logger.DebugFormat(TraceMessages.AuthnRequestPrepared, identityProvider.Id, Saml20Constants.ProtocolBindings.HttpArtifact);
var artifactBuilder = GetBuilder(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, context.Request.Params["relayState"], (s, o) => context.Cache.Insert(s, o, null, DateTime.Now.AddMinutes(1), Cache.NoSlidingExpiration));
break;
default:
Logger.Error(ErrorMessages.EndpointBindingInvalid);
throw new Saml20Exception(ErrorMessages.EndpointBindingInvalid);
}
}
private string AuthnRequestForIdp(IdentityProvider identityProvider, Saml20AuthnRequest request, IOwinContext context, Saml2Configuration config)
{
var logger = SAML2.Logging.LoggerProvider.LoggerFor(typeof(SamlMessage));
context.Set(IdpTempSessionKey, identityProvider.Id);
// Determine which endpoint to use from the configuration file or the endpoint metadata.
var destination = IdpSelectionUtil.DetermineEndpointConfiguration(BindingType.Redirect, identityProvider.Endpoints.DefaultSignOnEndpoint, identityProvider.Metadata.SSOEndpoints);
request.Destination = destination.Url;
if (identityProvider.ForceAuth) {
request.ForceAuthn = true;
}
// Check isPassive status
if (context.Get<bool>(IdpIsPassive)) {
request.IsPassive = true;
}
if (identityProvider.IsPassive) {
request.IsPassive = true;
}
// Check if request should forceAuthn
if (context.Get<bool>(IdpForceAuthn)) {
request.ForceAuthn = true;
}
// Check if protocol binding should be forced
if (identityProvider.Endpoints.DefaultSignOnEndpoint != null) {
if (!string.IsNullOrEmpty(identityProvider.Endpoints.DefaultSignOnEndpoint.ForceProtocolBinding)) {
request.ProtocolBinding = identityProvider.Endpoints.DefaultSignOnEndpoint.ForceProtocolBinding;
}
}
// Save request message id to session
Utility.AddExpectedResponseId(request.Id);
switch (destination.Binding) {
case BindingType.Redirect:
logger.DebugFormat(TraceMessages.AuthnRequestPrepared, identityProvider.Id, Saml20Constants.ProtocolBindings.HttpRedirect);
var redirectBuilder = new HttpRedirectBindingBuilder
{
SigningKey = config.ServiceProvider.SigningCertificate.PrivateKey,
Request = request.GetXml().OuterXml
};
if (context.Authentication != null &&
context.Authentication.AuthenticationResponseChallenge != null &&
context.Authentication.AuthenticationResponseChallenge.Properties != null &&
context.Authentication.AuthenticationResponseChallenge.Properties.Dictionary != null &&
context.Authentication.AuthenticationResponseChallenge.Properties.Dictionary.Count > 0)
redirectBuilder.RelayState = context.Authentication.AuthenticationResponseChallenge.Properties.Dictionary.ToDelimitedString();
logger.DebugFormat(TraceMessages.AuthnRequestSent, redirectBuilder.Request);
var redirectLocation = request.Destination + "?" + redirectBuilder.ToQuery();
return redirectLocation;
case BindingType.Post:
throw new NotImplementedException();
//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, config.ServiceProvider.SigningCertificate);
//postBuilder.Request = requestXml.OuterXml;
//logger.DebugFormat(TraceMessages.AuthnRequestSent, postBuilder.Request);
//context.Response.Write(postBuilder.GetPage());
//break;
case BindingType.Artifact:
throw new NotImplementedException();
//logger.DebugFormat(TraceMessages.AuthnRequestPrepared, identityProvider.Id, Saml20Constants.ProtocolBindings.HttpArtifact);
//var artifactBuilder = new HttpArtifactBindingBuilder(context, config);
//// 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(SAML2.ErrorMessages.EndpointBindingInvalid);
throw new Saml20Exception(SAML2.ErrorMessages.EndpointBindingInvalid);
}
throw new NotImplementedException();
}