MultiProtocolIssuerSts.Controllers.AuthenticationController.ProcessResponse C# (CSharp) Method

        public void ProcessResponse()
        {
            if (string.IsNullOrEmpty(this.federationContext.IssuerName))
            {
                throw new InvalidOperationException("The context cookie was not found. Try to re-login");
            }

            var issuer = this.configuration.RetrieveIssuer(new Uri(this.federationContext.IssuerName));

            var handler = this.protocolDiscovery.RetrieveProtocolHandler(issuer);

            if (handler == null)
                throw new InvalidOperationException();

            IClaimsIdentity identity = handler.ProcessSignInResponse(
                                                                this.federationContext.Realm,
                                                                this.federationContext.OriginalUrl,
                                                                this.HttpContext);

            IClaimsIdentity outputIdentity = UpdateIssuer(identity, this.multiProtocolServiceProperties.Identifier.ToString(), issuer.Identifier.ToString());
            outputIdentity.Claims.Add(new Claim(ClaimTypes.AuthenticationMethod, issuer.Identifier.ToString(), ClaimValueTypes.String, this.multiProtocolServiceProperties.Identifier.ToString()));
            outputIdentity.Claims.Add(new Claim(ClaimTypes.AuthenticationInstant, DateTime.Now.ToString("o"), ClaimValueTypes.Datetime, this.multiProtocolServiceProperties.Identifier.ToString()));

            var sessionToken = new SessionSecurityToken(new ClaimsPrincipal(new IClaimsIdentity[] { outputIdentity }));
            FederatedAuthentication.WSFederationAuthenticationModule.SetPrincipalAndWriteSessionToken(sessionToken, true);

            Response.Redirect(this.federationContext.OriginalUrl, false);
            HttpContext.ApplicationInstance.CompleteRequest();
        }