protected virtual void ParseParameters(HttpContext httpContext, OAuthRequestContext requestContext) { // Try to parse the parameters OAuthParameters parameters = OAuthParameters.Parse(httpContext.Request, ServiceProviderContext.Settings.ParameterSources); /* * Check for missing required parameters: * * The consumer key, signature method, signature, timestamp and nonce parameters * are all required */ parameters.RequireAllOf( Constants.ConsumerKeyParameter, Constants.TokenParameter, Constants.SignatureMethodParameter, Constants.SignatureParameter, Constants.TimestampParameter, Constants.NonceParameter, Constants.VerifierParameter); /* * The version parameter is optional, but it if is present its value must be 1.0 */ if (parameters.Version != null) { parameters.RequireVersion(Constants.Version1_0); } /* * Check that there are no other parameters except for realm, version and * the required parameters */ parameters.AllowOnly( Constants.ConsumerKeyParameter, Constants.TokenParameter, Constants.SignatureMethodParameter, Constants.SignatureParameter, Constants.TimestampParameter, Constants.NonceParameter, Constants.VerifierParameter, Constants.VersionParameter, // (optional) Constants.RealmParameter); // (optional) requestContext.Parameters = parameters; }