/// <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);
}
