/// <summary>
/// Creates a Provider's response to an incoming association request.
/// </summary>
/// <returns>
/// The appropriate association response message.
/// </returns>
/// <remarks>
/// <para>If an association can be successfully created, the
/// <see cref="AssociateSuccessfulResponse.CreateAssociation"/> method must not be
/// called by this method.</para>
/// <para>Successful association response messages will derive from <see cref="AssociateSuccessfulResponse"/>.
/// Failed association response messages will derive from <see cref="AssociateUnsuccessfulResponse"/>.</para>
/// </remarks>
protected override IProtocolMessage CreateResponseCore()
{
var response = new AssociateDiffieHellmanResponse(this.Version, this);
response.AssociationType = this.AssociationType;
return(response);
}
/// <summary>
/// Analyzes an incoming request message payload to discover what kind of
/// message is embedded in it and returns the type, or null if no match is found.
/// </summary>
/// <param name="request">The message that was sent as a request that resulted in the response.</param>
/// <param name="fields">The name/value pairs that make up the message payload.</param>
/// <returns>
/// A newly instantiated <see cref="IProtocolMessage"/>-derived object that this message can
/// deserialize to. Null if the request isn't recognized as a valid protocol message.
/// </returns>
public IDirectResponseProtocolMessage GetNewResponseMessage(IDirectedProtocolMessage request, IDictionary<string, string> fields) {
DirectResponseBase message = null;
// Discern the OpenID version of the message.
Protocol protocol = Protocol.V11;
string ns;
if (fields.TryGetValue(Protocol.V20.openidnp.ns, out ns)) {
ErrorUtilities.VerifyProtocol(string.Equals(ns, Protocol.OpenId2Namespace, StringComparison.Ordinal), MessagingStrings.UnexpectedMessagePartValue, Protocol.V20.openidnp.ns, ns);
protocol = Protocol.V20;
}
// Handle error messages generally.
if (fields.ContainsKey(protocol.openidnp.error)) {
message = new DirectErrorResponse(protocol.Version, request);
}
var associateRequest = request as AssociateRequest;
if (associateRequest != null) {
if (protocol.Version.Major >= 2 && fields.ContainsKey(protocol.openidnp.error_code)) {
// This is a special recognized error case that we create a special message for.
message = new AssociateUnsuccessfulResponse(protocol.Version, associateRequest);
} else if (message == null) {
var associateDiffieHellmanRequest = request as AssociateDiffieHellmanRequest;
var associateUnencryptedRequest = request as AssociateUnencryptedRequest;
if (associateDiffieHellmanRequest != null) {
message = new AssociateDiffieHellmanResponse(protocol.Version, associateDiffieHellmanRequest);
}
if (associateUnencryptedRequest != null) {
message = new AssociateUnencryptedResponse(protocol.Version, associateUnencryptedRequest);
}
}
}
var checkAuthenticationRequest = request as CheckAuthenticationRequest;
if (checkAuthenticationRequest != null && message == null) {
message = new CheckAuthenticationResponse(protocol.Version, checkAuthenticationRequest);
}
if (message != null) {
message.SetAsIncoming();
}
return message;
}
/// <summary>
/// Creates a Provider's response to an incoming association request.
/// </summary>
/// <returns>
/// The appropriate association response message.
/// </returns>
/// <remarks>
/// <para>If an association can be successfully created, the
/// <see cref="AssociateSuccessfulResponse.CreateAssociation"/> method must not be
/// called by this method.</para>
/// <para>Successful association response messages will derive from <see cref="AssociateSuccessfulResponse"/>.
/// Failed association response messages will derive from <see cref="AssociateUnsuccessfulResponse"/>.</para>
/// </remarks>
protected override IProtocolMessage CreateResponseCore()
{
var response = new AssociateDiffieHellmanResponse(this.Version, this);
response.AssociationType = this.AssociationType;
return response;
}
