/// <summary>
/// Sends the SAML response to the Service Provider.
/// </summary>
/// <param name="samlResponse">The SAML response object.</param>
/// <param name="relayState">The relay state.</param>
public static void SendResponse(Page page, ComponentPro.Saml2.Response samlResponse, string relayState)
{
// Sign the SAML response.
X509Certificate2 x509Certificate = (X509Certificate2)page.Application[Global.IdPCertKey];
samlResponse.Sign(x509Certificate);
switch (Global.AssertionServiceSamlBinding)
{
case SamlBinding.HttpPost:
// Send the SAML Response object.
samlResponse.SendPostBindingForm(page.Response.OutputStream, Global.AssertionServiceUrl, relayState);
break;
case SamlBinding.HttpArtifact:
// Create the artifact.
string identificationUrl = GetAbsoluteUrl(page, "~/");
Saml2ArtifactType0004 httpArtifact = new Saml2ArtifactType0004(SamlArtifact.GetSourceId(identificationUrl), SamlArtifact.GetHandle());
// Convert the authentication request to XML and save to the application Cache.
SamlSettings.CacheProvider.Insert(httpArtifact.ToString(), samlResponse.GetXml(), new TimeSpan(1, 0, 0));
// Send the artifact with POST form.
httpArtifact.SendPostForm(page.Response.OutputStream, Global.AssertionServiceUrl, relayState);
break;
default:
throw new ApplicationException("Invalid assertion consumer service binding.");
}
}
/// <summary>
/// Processes a successful SAML response.
/// </summary>
private void ProcessSuccessResponse(ComponentPro.Saml2.Response samlResponse, string relayState)
{
// Extract the asserted identity from the SAML response.
Assertion samlAssertion = (Assertion)samlResponse.Assertions[0];
// Get the subject name identifier.
string userName = samlAssertion.Subject.NameId.NameIdentifier;
// Get the originally requested resource URL from the relay state.
string resourceUrl = (string)SamlSettings.CacheProvider.Remove(relayState);
if (resourceUrl == null)
{
Trace.Write("ServiceProvider", "Nothing in cache");
// Set resource Url to the root dir
resourceUrl = "/";
}
// Create a login context for the asserted identity.
FormsAuthentication.SetAuthCookie(userName, false);
// Redirect to the originally requested resource URL.
Response.Redirect(resourceUrl);
}
// Send the SAML response over the specified binding.
public static void SendSamlResponse(Page page, ComponentPro.Saml2.Response samlResponse, SsoAuthnState ssoState)
{
// Sign the SAML response
X509Certificate2 x509Certificate = (X509Certificate2)page.Application[Global.IdPCertKey];
samlResponse.Sign(x509Certificate);
// Send the SAML response to the service provider.
switch (ssoState.IdpProtocolBinding)
{
case SamlBinding.HttpPost:
samlResponse.SendPostBindingForm(page.Response.OutputStream, ssoState.AssertionConsumerServiceURL, ssoState.RelayState);
break;
case SamlBinding.HttpArtifact:
// Create the artifact.
string identificationUrl = Util.GetAbsoluteUrl(page, "~/");
Saml2ArtifactType0004 httpArtifact = new Saml2ArtifactType0004(SamlArtifact.GetSourceId(identificationUrl), SamlArtifact.GetHandle());
// Cache the authentication request for subsequent sending using the artifact resolution protocol. Sliding expiration time is 1 hour.
SamlSettings.CacheProvider.Insert(httpArtifact.ToString(), samlResponse.GetXml(), new TimeSpan(1, 0, 0));
// Send the artifact.
httpArtifact.SendPostForm(page.Response.OutputStream, ssoState.AssertionConsumerServiceURL,
ssoState.RelayState);
break;
default:
Trace.Write("IdentityProvider", "Invalid identity provider binding");
break;
}
}
/// <summary>
/// Processes a successful SAML response and redirect to the requested URL.
/// </summary>
/// <param name="page">The page object.</param>
/// <param name="samlResponse">The SAML response object.</param>
/// <param name="relayState">The relay state.</param>
public static void SamlSuccessRedirect(Page page, ComponentPro.Saml2.Response samlResponse, string relayState)
{
// Get the previously loaded certificate.
X509Certificate2 x509Certificate = (X509Certificate2)page.Application[Global.SpCertKey];
Assertion samlAssertion;
// Check assertions.
if (samlResponse.GetAssertions().Count > 0)
{
// Extract the first assertion.
samlAssertion = samlResponse.GetAssertions()[0];
}
else if (samlResponse.GetEncryptedAssertions().Count > 0)
{
// Extract the first assertion.
samlAssertion = samlResponse.GetEncryptedAssertions()[0].Decrypt(x509Certificate.PrivateKey, null);
}
else
{
throw new ApplicationException("No assertions in response");
}
string userName;
// Get the subject name identifier.
if (samlAssertion.Subject.NameId != null)
{
userName = samlAssertion.Subject.NameId.NameIdentifier;
}
else if (samlAssertion.Subject.EncryptedId != null)
{
NameId nameId = samlAssertion.Subject.EncryptedId.Decrypt(x509Certificate.PrivateKey, null);
userName = nameId.NameIdentifier;
}
else
{
throw new ApplicationException("No name in subject");
}
// Get the originally requested resource URL from the relay state.
string resourceUrl = (string)SamlSettings.CacheProvider.Remove(relayState);
if (resourceUrl == null)
{
throw new ApplicationException("Invalid relay state");
}
// Create a login context for the asserted identity.
FormsAuthentication.SetAuthCookie(userName, false);
// Redirect to the originally requested resource URL.
page.Response.Redirect(resourceUrl, false);
}
/// <summary>
/// Processes an error SAML response.
/// </summary>
private void ProcessErrorResponse(ComponentPro.Saml2.Response samlResponse)
{
string errorMessage = null;
if ((samlResponse.Status.StatusMessage != null))
{
errorMessage = samlResponse.Status.StatusMessage.Message;
}
string redirectUrl = string.Format("~/UserLogin.aspx?{0}={1}", Util.ErrorVarName, HttpUtility.UrlEncode(errorMessage));
Response.Redirect(redirectUrl, false);
}
/// <summary>
/// Processes an error SAML response and redirect to the requested URL.
/// </summary>
/// <param name="page">The page object.</param>
/// <param name="samlResponse">The SAML response object.</param>
/// <param name="relayState">The relay state.</param>
public static void SamlErrorRedirect(Page page, ComponentPro.Saml2.Response samlResponse)
{
string errorMessage = null;
if (samlResponse.Status.StatusMessage != null)
{
errorMessage = samlResponse.Status.StatusMessage.Message;
}
string redirectUrl = String.Format("~/UserLogin.aspx?error={0}", HttpUtility.UrlEncode(errorMessage));
page.Response.Redirect(redirectUrl, false);
}
/// <summary>
/// Processes the SAML response received from the IdP.
/// </summary>
/// <param name="page">The page object.</param>
/// <param name="relayState">The relay state</param>
/// <param name="samlResponse">The SAML response object.</param>
public static void ProcessResponse(Page page, out ComponentPro.Saml2.Response samlResponse, out string relayState)
{
// Extract the binding type from the query string.
string bindingType = page.Request.QueryString["binding"];
switch (bindingType)
{
case "artifact":
// Create an artifact from the query string.
Saml2ArtifactType0004 httpArtifact = Saml2ArtifactType0004.CreateFromHttpArtifactQueryString(page.Request);
// Create an artifact resolve request.
ArtifactResolve artifactResolve = new ArtifactResolve();
artifactResolve.Issuer = new Issuer(GetAbsoluteUrl(page, "~/"));
artifactResolve.Artifact = new Artifact(httpArtifact.ToString());
// Send the artifact resolve request and create an artifact response from the received XML.
ArtifactResponse artifactResponse = ArtifactResponse.SendSamlMessageReceiveAftifactResponse(Global.ArtifactServiceUrl, artifactResolve);
// Get the SAML Response from the artifact response.
samlResponse = new ComponentPro.Saml2.Response(artifactResponse.Message);
relayState = httpArtifact.RelayState;
break;
case "post":
System.Diagnostics.Debug.WriteLine("POST");
// Create a SAML response from the form data.
samlResponse = ComponentPro.Saml2.Response.Create(page.Request);
relayState = samlResponse.RelayState;
break;
default:
throw new ApplicationException("Unknown binding type");
}
// Is the SAML response signed?
if (samlResponse.IsSigned())
{
// Get the previously loaded certificate.
X509Certificate2 x509Certificate = (X509Certificate2)page.Application[Global.IdPCertKey];
// Validate the certificate.
if (!samlResponse.Validate(x509Certificate))
{
throw new ApplicationException("The SAML response signature failed to verify.");
}
}
}
/// <summary>
/// Processes the SAML response received from the IdP.
/// </summary>
/// <param name="page">The page object.</param>
/// <param name="relayState">The relay state</param>
/// <param name="samlResponse">The SAML response object.</param>
public static void ProcessResponse(Page page, out ComponentPro.Saml2.Response samlResponse, out string relayState)
{
// Extract the binding type from the query string.
string bindingType = page.Request.QueryString["binding"];
switch (bindingType)
{
case "artifact":
// Create an artifact from the query string.
Saml2ArtifactType0004 httpArtifact = Saml2ArtifactType0004.CreateFromHttpArtifactQueryString(page.Request);
// Create an artifact resolve request.
ArtifactResolve artifactResolve = new ArtifactResolve();
artifactResolve.Issuer = new Issuer(GetAbsoluteUrl(page, "~/"));
artifactResolve.Artifact = new Artifact(httpArtifact.ToString());
// Send the artifact resolve request and create an artifact response from the received XML.
ArtifactResponse artifactResponse = ArtifactResponse.SendSamlMessageReceiveAftifactResponse(Global.ArtifactServiceUrl, artifactResolve);
// Get the SAML Response from the artifact response.
samlResponse = new ComponentPro.Saml2.Response(artifactResponse.Message);
relayState = httpArtifact.RelayState;
break;
case "post":
// Create a SAML response from the form data.
samlResponse = ComponentPro.Saml2.Response.Create(page.Request);
relayState = samlResponse.RelayState;
break;
default:
throw new ApplicationException("Unknown binding type");
}
// Is the SAML response signed?
if (samlResponse.IsSigned())
{
// Get the previously loaded certificate.
X509Certificate2 x509Certificate = (X509Certificate2)page.Application[Global.IdPCertKey];
// Validate the certificate.
if (!samlResponse.Validate(x509Certificate))
{
throw new ApplicationException("The SAML response signature failed to verify.");
}
}
}
/// <summary>
/// Receives the SAML response from the identity provider.
/// </summary>
/// <param name="samlResponse"></param>
/// <param name="relayState"></param>
private void ReceiveResponse(out ComponentPro.Saml2.Response samlResponse, out string relayState)
{
// Determine the identity provider to service provider binding type.
// We use a query string parameter rather than having separate endpoints per binding.
string bindingType = Request.QueryString[Util.BindingVarName];
switch (bindingType)
{
case SamlBindingUri.HttpPost:
samlResponse = ComponentPro.Saml2.Response.Create(Request);
relayState = samlResponse.RelayState;
break;
case SamlBindingUri.HttpArtifact:
Saml2ArtifactType0004 httpArtifact = Saml2ArtifactType0004.CreateFromHttpArtifactHttpForm(Request);
// Create an artifact resolve request.
ArtifactResolve artifactResolve = new ArtifactResolve();
artifactResolve.Issuer = new Issuer(Util.GetAbsoluteUrl(this, "~/"));
artifactResolve.Artifact = new Artifact(httpArtifact.ToString());
// Send the artifact resolve request and receive the artifact response.
string spArtifactResponderUrl = WebConfigurationManager.AppSettings["ArtifactIdProviderUrl"];
ArtifactResponse artifactResponse = ArtifactResponse.SendSamlMessageReceiveAftifactResponse(spArtifactResponderUrl, artifactResolve);
// Extract the authentication request from the artifact response.
samlResponse = new Response(artifactResponse.Message);
relayState = httpArtifact.RelayState;
break;
default:
Trace.Write("ServiceProvider", "Invalid identity provider to service provider binding");
samlResponse = null;
relayState = null;
return;
}
// Verify the response's signature.
X509Certificate2 x509Certificate = (X509Certificate2)Application[Global.IdPCertKey];
if (!samlResponse.Validate(x509Certificate))
{
throw new System.ApplicationException("The SAML response signature failed to verify.");
}
}
/// <summary>
/// Builds the SAML response.
/// </summary>
/// <param name="authnRequest">The AuthnRequest object.</param>
/// <returns>A SAML Response object.</returns>
public static ComponentPro.Saml2.Response BuildResponse(Page page, AuthnRequest authnRequest)
{
ComponentPro.Saml2.Response samlResponse = new ComponentPro.Saml2.Response();
samlResponse.Destination = Global.AssertionServiceUrl;
Issuer issuer = new Issuer(GetAbsoluteUrl(page, "~/"));
samlResponse.Issuer = issuer;
if (page.User.Identity.IsAuthenticated)
{
samlResponse.Status = new Status(SamlPrimaryStatusCode.Success, null);
Assertion samlAssertion = new Assertion();
samlAssertion.Issuer = issuer;
Subject subject = new Subject(new NameId(page.User.Identity.Name));
SubjectConfirmation subjectConfirmation = new SubjectConfirmation(SamlSubjectConfirmationMethod.Bearer);
SubjectConfirmationData subjectConfirmationData = new SubjectConfirmationData();
subjectConfirmationData.InResponseTo = authnRequest.Id;
subjectConfirmationData.Recipient = Global.AssertionServiceUrl;
subjectConfirmation.SubjectConfirmationData = subjectConfirmationData;
subject.SubjectConfirmations.Add(subjectConfirmation);
samlAssertion.Subject = subject;
AuthnStatement authnStatement = new AuthnStatement();
authnStatement.AuthnContext = new AuthnContext();
authnStatement.AuthnContext.AuthnContextClassRef = new AuthnContextClassRef(SamlAuthenticateContext.Password);
samlAssertion.Statements.Add(authnStatement);
samlResponse.Assertions.Add(samlAssertion);
}
else
{
samlResponse.Status = new Status(SamlPrimaryStatusCode.Responder, SamlSecondaryStatusCode.AuthnFailed, "The user is not authenticated at the identity provider");
}
return(samlResponse);
}
// Create a SAML response with the user's local identity, if any, or indicating an error.
public static ComponentPro.Saml2.Response CreateSamlResponse(Page page)
{
ComponentPro.Saml2.Response samlResponse = new ComponentPro.Saml2.Response();
string issuerUrl = Util.GetAbsoluteUrl(page, "~/");
samlResponse.Issuer = new Issuer(issuerUrl);
if (page.User.Identity.IsAuthenticated)
{
samlResponse.Status = new Status(SamlPrimaryStatusCode.Success, null);
Assertion samlAssertion = new Assertion();
samlAssertion.Subject = new Subject(new NameId(page.User.Identity.Name));
samlAssertion.Statements.Add(new AuthnStatement());
samlResponse.Assertions.Add(samlAssertion);
}
else
{
samlResponse.Status = new Status(SamlPrimaryStatusCode.Responder, SamlSecondaryStatusCode.AuthnFailed, "The user is not authenticated at the identity provider");
}
return(samlResponse);
}
private void RecieveResponse(out ComponentPro.Saml2.Response samlResponse, out string relayState, string binding)
{
var bindingType = binding;
if (bindingType == null)
{
if (HttpContext.Session.GetString("User") != null)
{
HttpContext.Session.Set("User", null);
}
else
{
HttpContext.Response.Redirect("trylogin");
}
}
switch (bindingType)
{
case SamlBindingUri.HttpPost:
samlResponse = ComponentPro.Saml2.Response.Create(HttpContext.Request);
relayState = samlResponse.RelayState;
break;
default:
samlResponse = null;
relayState = null;
return;
}
var x509Certificate = _certificateProvider.GetCertificate();
if (!samlResponse.Validate(x509Certificate))
{
throw new ApplicationException("The SAML response signature failed to verify.");
}
}
protected override void OnLoad(EventArgs e)
{
base.OnLoad(e);
try
{
#region Receive SAML Response
// Create a SAML response from the HTTP request.
ComponentPro.Saml2.Response samlResponse = ComponentPro.Saml2.Response.Create(Request);
// Is it signed?
if (samlResponse.IsSigned())
{
// Loaded the previously loaded certificate.
X509Certificate2 x509Certificate = (X509Certificate2)Application[Global.CertKeyName];
// Validate the SAML response with the certificate.
if (!samlResponse.Validate(x509Certificate))
{
throw new ApplicationException("SAML response signature is not valid.");
}
}
#endregion
#region Process the response
// Success?
if (!samlResponse.IsSuccess())
{
throw new ApplicationException("SAML response is not success");
}
Assertion samlAssertion;
// Define ENCRYPTEDSAML preprocessor flag if you wish to decrypt the SAML response.
#if ENCRYPTEDSAML
if (samlResponse.GetEncryptedAssertions().Count > 0)
{
EncryptedAssertion encryptedAssertion = samlResponse.GetEncryptedAssertions()[0];
// Load the private key.
// Consider caching the loaded key in production environment for better performance.
X509Certificate2 decryptionKey = new X509Certificate2(Path.Combine(HttpRuntime.AppDomainAppPath, "EncryptionKey.pfx"), "password");
// Decrypt the encrypted assertion.
samlAssertion = encryptedAssertion.Decrypt(decryptionKey.PrivateKey, null);
}
else
{
throw new ApplicationException("No encrypted assertions found in the SAML response");
}
#else
// Get the asserted identity.
if (samlResponse.GetAssertions().Count > 0)
{
samlAssertion = samlResponse.GetAssertions()[0];
}
else
{
throw new ApplicationException("No assertions found in the SAML response");
}
#endif
// Get the subject name identifier.
string userName;
if (samlAssertion.Subject.NameId != null)
{
userName = samlAssertion.Subject.NameId.NameIdentifier;
}
else
{
throw new ApplicationException("Name identifier not found in subject");
}
#region Extract Custom Attributes
// If you need to add custom attributes, uncomment the following code
//if (samlAssertion.AttributeStatements.Count > 0)
//{
// foreach (AttributeStatement attributeStatement in samlAssertion.AttributeStatements)
// {
// // If you need to decrypt encrypted attributes, refer to this topic: http://www.samlcomponent.net/encrypting-and-decrypting-saml-response-xml
// foreach (ComponentPro.Saml2.Attribute attribute in attributeStatement.Attributes)
// {
// // Process your custom attribute here.
// // ...
// }
// }
//}
#endregion
// Set authentication cookie.
FormsAuthentication.SetAuthCookie(userName, false);
// Redirect to the requested URL.
Response.Redirect(samlResponse.RelayState, false);
#endregion
}
catch (Exception exception)
{
Trace.Write("ServiceProvider", "An Error occurred", exception);
}
}
protected override void OnLoad(EventArgs e)
{
base.OnLoad(e);
try
{
// Load the Single Sign On state from the Session state.
// If the saved authentication state is a null reference, receive the authentication request from the query string and form data.
SsoAuthnState ssoState = (SsoAuthnState)Session[SsoAuthnStateSessionKey];
if (ssoState == null || !User.Identity.IsAuthenticated)
{
AuthnRequest authnRequest;
string relayState;
// Receive the authentication request and relay state.
Util.ProcessAuthnRequest(this, out authnRequest, out relayState);
// Check whether the provider MUST authenticate the presenter directly rather than rely on a previous security context.
bool forceAuthn = authnRequest.ForceAuthn;
bool allowCreate = false;
if (authnRequest.NameIdPolicy != null)
{
// Check whether the identity provider is allowed.
allowCreate = authnRequest.NameIdPolicy.AllowCreate;
}
ssoState = new SsoAuthnState();
ssoState.AuthnRequest = authnRequest;
ssoState.State = relayState;
// A boolean flag determining whether or not a local login is required.
bool requireLocalLogin = false;
if (forceAuthn)
{
requireLocalLogin = true;
}
else
{
if (!User.Identity.IsAuthenticated && allowCreate)
{
requireLocalLogin = true;
}
}
// Local login is required?
if (requireLocalLogin)
{
// Then save the session state.
Session[SsoAuthnStateSessionKey] = ssoState;
// And redirect to the login page.
FormsAuthentication.RedirectToLoginPage();
return;
}
}
// Create a new SAML 2 Response.
ComponentPro.Saml2.Response samlResponse = Util.BuildResponse(this, ssoState.AuthnRequest);
// Send the SAML response to the service provider.
Util.SendResponse(this, samlResponse, ssoState.State);
}
catch (Exception exception)
{
Trace.Write("IdentityProvider", "An Error occurred", exception);
}
}
protected override void OnLoad(EventArgs e)
{
base.OnLoad(e);
try
{
// Extract the SP target url.
string targetUrl = Request.QueryString["spUrl"];
// Validate it.
if (string.IsNullOrEmpty(targetUrl))
{
return;
}
// Create a SAML response object.
ComponentPro.Saml2.Response samlResponse = new ComponentPro.Saml2.Response();
// Assign the consumer service url.
samlResponse.Destination = ConsumerServiceUrl;
Issuer issuer = new Issuer(GetAbsoluteUrl("~/"));
samlResponse.Issuer = issuer;
samlResponse.Status = new Status(SamlPrimaryStatusCode.Success, null);
Assertion samlAssertion = new Assertion();
samlAssertion.Issuer = issuer;
// Use the local user's local identity.
Subject subject = new Subject(new NameId(User.Identity.Name));
SubjectConfirmation subjectConfirmation = new SubjectConfirmation(SamlSubjectConfirmationMethod.Bearer);
SubjectConfirmationData subjectConfirmationData = new SubjectConfirmationData();
subjectConfirmationData.Recipient = ConsumerServiceUrl;
subjectConfirmation.SubjectConfirmationData = subjectConfirmationData;
subject.SubjectConfirmations.Add(subjectConfirmation);
samlAssertion.Subject = subject;
// Create a new authentication statement.
AuthnStatement authnStatement = new AuthnStatement();
authnStatement.AuthnContext = new AuthnContext();
authnStatement.AuthnContext.AuthnContextClassRef = new AuthnContextClassRef(SamlAuthenticateContext.Password);
samlAssertion.Statements.Add(authnStatement);
// If you need to add custom attributes, uncomment the following code
// #region Custom Attributes
// AttributeStatement attributeStatement = new AttributeStatement();
// attributeStatement.Attributes.Add(new ComponentPro.Saml2.Attribute("email", SamlAttributeNameFormat.Basic, null,
// "*****@*****.**"));
// attributeStatement.Attributes.Add(new ComponentPro.Saml2.Attribute("FirstName", SamlAttributeNameFormat.Basic, null,
// "John"));
// attributeStatement.Attributes.Add(new ComponentPro.Saml2.Attribute("LastName", SamlAttributeNameFormat.Basic, null,
// "Smith"));
// // Insert a custom token key to the SAML response.
// attributeStatement.Attributes.Add(new ComponentPro.Saml2.Attribute("CustomTokenForVerification", SamlAttributeNameFormat.Basic, null,
// "YourEncryptedTokenHere"));
// samlAssertion.Statements.Add(attributeStatement);
// #endregion
// Define ENCRYPTEDSAML preprocessor flag if you wish to encrypt the SAML response.
#if ENCRYPTEDSAML
// Load the certificate for the encryption.
// Please make sure the file is in the root directory.
X509Certificate2 encryptingCert = new X509Certificate2(Path.Combine(HttpRuntime.AppDomainAppPath, "EncryptionX509Certificate.cer"), "password");
// Create an encrypted SAML assertion from the SAML assertion we have created.
EncryptedAssertion encryptedSamlAssertion = new EncryptedAssertion(samlAssertion, encryptingCert, new System.Security.Cryptography.Xml.EncryptionMethod(SamlKeyAlgorithm.TripleDesCbc));
// Add encrypted assertion to the SAML response object.
samlResponse.Assertions.Add(encryptedSamlAssertion);
#else
// Add assertion to the SAML response object.
samlResponse.Assertions.Add(samlAssertion);
#endif
// Get the previously loaded certificate.
X509Certificate2 x509Certificate = (X509Certificate2)Application[Global.CertKeyName];
// Sign the SAML response with the certificate.
samlResponse.Sign(x509Certificate);
// Send the SAML response to the service provider.
samlResponse.SendPostBindingForm(Response.OutputStream, ConsumerServiceUrl, targetUrl);
}
catch (Exception exception)
{
Trace.Write("IdentityProvider", "An Error occurred", exception);
}
}
/// <summary>
/// Processes a successful SAML response and redirect to the requested URL.
/// </summary>
/// <param name="page">The page object.</param>
/// <param name="samlResponse">The SAML response object.</param>
/// <param name="relayState">The relay state.</param>
public static void SamlSuccessRedirect(Page page, ComponentPro.Saml2.Response samlResponse, string relayState)
{
// Get the previously loaded certificate.
X509Certificate2 x509Certificate = (X509Certificate2)page.Application[Global.SpCertKey];
Assertion samlAssertion;
// Check assertions.
if (samlResponse.GetAssertions().Count > 0)
{
// Extract the first assertion.
samlAssertion = samlResponse.GetAssertions()[0];
}
else if (samlResponse.GetEncryptedAssertions().Count > 0)
{
// Extract the first assertion.
samlAssertion = samlResponse.GetEncryptedAssertions()[0].Decrypt(x509Certificate.PrivateKey, null);
}
else
{
throw new ApplicationException("No assertions in response");
}
string userName;
// Get the subject name identifier.
if (samlAssertion.Subject.NameId != null)
{
//userName = samlAssertion.Subject.NameId.NameIdentifier;
userName = samlAssertion.GetAttributeValueByFriendlyName("eduPersonPrincipalName");
System.Collections.Generic.Dictionary<string, string> dict = new System.Collections.Generic.Dictionary<string, string>();
foreach (ComponentPro.Saml2.Attribute attribute in samlAssertion.AttributeStatements[0].Attributes)
{
dict.Add(attribute.FriendlyName, attribute.Values[0].ToString());
System.Diagnostics.Trace.WriteLine(attribute.FriendlyName + ":" + attribute.Values[0].ToString());
}
HttpContext.Current.Session.Add("samlAttributes", dict);
}
else if (samlAssertion.Subject.EncryptedId != null)
{
NameId nameId = samlAssertion.Subject.EncryptedId.Decrypt(x509Certificate.PrivateKey, null);
userName = nameId.NameIdentifier;
}
else
{
throw new ApplicationException("No name in subject");
}
try
{
string aaURL = "https://idp.testshib.org:8443/idp/profile/SAML2/SOAP/AttributeQuery";
//Testing subject
NameId subje = new NameId(userName,null,null,SamlNameIdentifierFormat.Unspecified,aaURL);
//Testing subject
Subject subject = new Subject(new NameId(userName));
SubjectConfirmation subjectConfirmation = new SubjectConfirmation(SamlSubjectConfirmationMethod.Bearer);
SubjectConfirmationData subjectConfirmationData = new SubjectConfirmationData();
subjectConfirmationData.Recipient = aaURL;
subjectConfirmation.SubjectConfirmationData = subjectConfirmationData;
subject.SubjectConfirmations.Add(subjectConfirmation);
AttributeQuery attributeQuery = new AttributeQuery();
//attributeQuery.Subject = subject;
attributeQuery.Destination = aaURL;
attributeQuery.Issuer = new Issuer(Global.entityId);
attributeQuery.Attributes.Add(new ComponentPro.Saml2.Attribute() { FriendlyName = "givenName" });
attributeQuery.Subject = new Subject(samlAssertion.Subject.NameId);
attributeQuery.Sign(x509Certificate);
System.Diagnostics.Trace.WriteLine("Trying to get attributes from AA");
System.Diagnostics.Trace.WriteLine("AA query " + attributeQuery.GetXml().OuterXml);
System.Diagnostics.Trace.WriteLine("AA Subject " + attributeQuery.Subject.ToString());
ArtifactResponse artifactResponse = ArtifactResponse.SendSamlMessageReceiveAftifactResponse(aaURL, attributeQuery);
Response attrResponse;
attrResponse = new ComponentPro.Saml2.Response(artifactResponse.Message);
System.Diagnostics.Trace.WriteLine("AA reponse " + attrResponse.GetXml().OuterXml);
}
catch (Exception e)
{
System.Diagnostics.Trace.WriteLine("Execption: " + e.ToString());
//throw;
}
// Get the originally requested resource URL from the relay state.
string resourceUrl = (string)SamlSettings.CacheProvider.Remove(relayState);
if (resourceUrl == null)
{
throw new ApplicationException("Invalid relay state");
}
// Create a login context for the asserted identity.
FormsAuthentication.SetAuthCookie(userName, false);
// Redirect to the originally requested resource URL.
page.Response.Redirect(resourceUrl, false);
}
protected override void OnLoad(System.EventArgs e)
{
base.OnLoad(e);
try
{
// Look up for the SP ID
string referer = this.Request.UrlReferrer.AbsoluteUri;
int i = -1;
if (!referer.StartsWith(Services.LocalUri))
{
for (i = 0; i < Services.AllowedServiceUrls.Length; i++)
{
string url = Services.AllowedServiceUrls[i];
if (referer.StartsWith(url))
{
break;
}
}
if (i == Services.AllowedServiceUrls.Length)
{
throw new Exception("Your SP is not allowed");
}
}
// Get the saved SSO state, if any.
// If there isn't saved state then receive the authentication request.
// If there is saved state then we've just completed a local login in response
// to a prior authentication request.
SsoAuthnState ssoState = (SsoAuthnState)Session[SsoSessionKey];
// Receive the authentication request.
AuthnRequest authnRequest = null;
string relayState = null;
if (i != -1)
{
Util.ReceiveAuthnRequest(this, out authnRequest, out relayState);
if (authnRequest == null)
{
// No authentication request found.
return;
}
}
if (ssoState == null)
{
// Process the authentication request.
bool forceAuthn = authnRequest.ForceAuthn;
bool allowCreate = false;
if (authnRequest.NameIdPolicy != null)
{
allowCreate = authnRequest.NameIdPolicy.AllowCreate;
}
ssoState = new SsoAuthnState();
ssoState.AuthnRequest = authnRequest;
ssoState.RelayState = relayState;
ssoState.IdpProtocolBinding = SamlBindingUri.UriToBinding(authnRequest.ProtocolBinding);
ssoState.AssertionConsumerServiceURL = authnRequest.AssertionConsumerServiceUrl;
// Determine whether or not a local login is required.
bool requireLocalLogin = false;
if (forceAuthn)
{
requireLocalLogin = true;
}
else
{
if (!User.Identity.IsAuthenticated & allowCreate)
{
requireLocalLogin = true;
}
}
// If a local login is required then save the authentication request
// and initiate a local login.
if (requireLocalLogin)
{
// Save the SSO state.
Session[SsoSessionKey] = ssoState;
// Initiate a local login.
System.Web.Security.FormsAuthentication.RedirectToLoginPage();
return;
}
}
// Create a SAML response with the user's local identity, if any.
ComponentPro.Saml2.Response samlResponse = Util.CreateSamlResponse(this);
if (i != -1)
{
// Update the Relay state before sending SAML response.
// Dynamically update the assertion consumer service URL corresponding to the service provider.
ssoState.AssertionConsumerServiceURL = authnRequest.AssertionConsumerServiceUrl;
}
// Send the SAML response to the service provider.
Util.SendSamlResponse(this, samlResponse, ssoState);
}
catch (Exception exception)
{
Trace.Write("IdentityProvider", "An Error occurred", exception);
}
}
