/// <summary>
/// Requests an access token using a partially .initialized request message.
/// </summary>
/// <param name="request">The request message.</param>
/// <param name="scopes">The scopes requested by the client.</param>
/// <returns>The result of the request.</returns>
private IAuthorizationState RequestAccessToken(ScopedAccessTokenRequest request, IEnumerable <string> scopes = null)
{
var authorizationState = new AuthorizationState(scopes);
request.ClientIdentifier = this.ClientIdentifier;
this.ApplyClientCredential(request);
request.Scope.UnionWith(authorizationState.Scope);
var response = this.Channel.Request(request);
var success = response as AccessTokenSuccessResponse;
var failure = response as AccessTokenFailedResponse;
ErrorUtilities.VerifyProtocol(success != null || failure != null, MessagingStrings.UnexpectedMessageReceivedOfMany);
if (success != null)
{
UpdateAuthorizationWithResponse(authorizationState, success);
}
else
{
// failure
authorizationState.Delete();
}
return(authorizationState);
}
