public override void SetUp()
{
base.SetUp();
var request = new AssociateUnencryptedRequest(Protocol.V20.Version, new Uri("http://host"));
this.response = new DirectErrorResponse(request.Version, request);
}
/// <summary>
/// Prepares the return value for the GetRequest method in the event of an exception.
/// </summary>
/// <param name="ex">The exception that forms the basis of the error response. Must not be null.</param>
/// <param name="httpRequestInfo">The incoming HTTP request. Must not be null.</param>
/// <param name="incomingMessage">The incoming message. May be null in the case that it was malformed.</param>
/// <returns>
/// Either the <see cref="IRequest"/> to return to the host site or null to indicate no response could be reasonably created and that the caller should rethrow the exception.
/// </returns>
private IRequest GetErrorResponse(ProtocolException ex, HttpRequestInfo httpRequestInfo, IDirectedProtocolMessage incomingMessage) {
Contract.Requires<ArgumentNullException>(ex != null);
Contract.Requires<ArgumentNullException>(httpRequestInfo != null);
Logger.OpenId.Error("An exception was generated while processing an incoming OpenID request.", ex);
IErrorMessage errorMessage;
// We must create the appropriate error message type (direct vs. indirect)
// based on what we see in the request.
string returnTo = httpRequestInfo.QueryString[Protocol.Default.openid.return_to];
if (returnTo != null) {
// An indirect request message from the RP
// We need to return an indirect response error message so the RP can consume it.
// Consistent with OpenID 2.0 section 5.2.3.
var indirectRequest = incomingMessage as SignedResponseRequest;
if (indirectRequest != null) {
errorMessage = new IndirectErrorResponse(indirectRequest);
} else {
errorMessage = new IndirectErrorResponse(Protocol.Default.Version, new Uri(returnTo));
}
} else if (httpRequestInfo.HttpMethod == "POST") {
// A direct request message from the RP
// We need to return a direct response error message so the RP can consume it.
// Consistent with OpenID 2.0 section 5.1.2.2.
errorMessage = new DirectErrorResponse(Protocol.Default.Version, incomingMessage);
} else {
// This may be an indirect request from an RP that was so badly
// formed that we cannot even return an error to the RP.
// The best we can do is display an error to the user.
// Returning null cues the caller to "throw;"
return null;
}
errorMessage.ErrorMessage = ex.ToStringDescriptive();
// Allow host to log this error and issue a ticket #.
// We tear off the field to a local var for thread safety.
IErrorReporting hostErrorHandler = this.ErrorReporting;
if (hostErrorHandler != null) {
errorMessage.Contact = hostErrorHandler.Contact;
errorMessage.Reference = hostErrorHandler.LogError(ex);
}
if (incomingMessage != null) {
return new AutoResponsiveRequest(incomingMessage, errorMessage, this.SecuritySettings);
} else {
return new AutoResponsiveRequest(errorMessage, this.SecuritySettings);
}
}
/// <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) {
if (OpenIdUtilities.IsDiffieHellmanPresent) {
var associateDiffieHellmanRequest = request as AssociateDiffieHellmanRequest;
if (associateDiffieHellmanRequest != null) {
message = new AssociateDiffieHellmanRelyingPartyResponse(protocol.Version, associateDiffieHellmanRequest);
}
}
var associateUnencryptedRequest = request as AssociateUnencryptedRequest;
if (associateUnencryptedRequest != null) {
message = new AssociateUnencryptedResponseRelyingParty(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;
}
