// Process the artifact resolve request received from the identity provider in response
// to the artifact sent by the service provider.
private void ProcessArtifactResolve()
{
Trace.Write("IdP", "Processing artifact resolve request");
// Receive the artifact resolve request.
XmlElement artifactResolveXml = ArtifactResolver.ReceiveArtifactResolve(Request);
ArtifactResolve artifactResolve = new ArtifactResolve(artifactResolveXml);
// Get the artifact.
HTTPArtifactType4 httpArtifact = new HTTPArtifactType4(artifactResolve.Artifact.ArtifactValue);
// Remove the artifact state from the cache.
HTTPArtifactState httpArtifactState = HTTPArtifactStateCache.Remove(httpArtifact);
if (httpArtifactState == null)
{
throw new ArgumentException("Invalid artifact.");
}
// Create an artifact response containing the cached SAML message.
ArtifactResponse artifactResponse = new ArtifactResponse();
artifactResponse.Issuer = new Issuer(CreateAbsoluteURL("~/"));
artifactResponse.SAMLMessage = httpArtifactState.SAMLMessage;
XmlElement artifactResponseXml = artifactResponse.ToXml();
// Send the artifact response.
ArtifactResolver.SendArtifactResponse(Response, artifactResponseXml);
Trace.Write("IdP", "Processed artifact resolve request");
}