public async Task <CustomGrantValidationResult> ValidateAsync(ValidatedTokenRequest request)
{
var validator = _validators.FirstOrDefault(v => v.GrantType.Equals(request.GrantType, StringComparison.Ordinal));
if (validator == null)
{
return(new CustomGrantValidationResult
{
IsError = true,
Error = "No validator found for grant type"
});
}
try
{
return(await validator.ValidateAsync(request));
}
catch (Exception e)
{
Logger.Error("Grant validation error:" + e.Message);
return(new CustomGrantValidationResult
{
IsError = true,
Error = "Grant validation error",
});
}
}
public async Task <TokenRequestValidationResult> ValidateRequestAsync(NameValueCollection parameters, Client client)
{
Logger.Info("Start token request validation");
_validatedRequest = new ValidatedTokenRequest();
if (client == null)
{
throw new ArgumentNullException("client");
}
if (parameters == null)
{
throw new ArgumentNullException("parameters");
}
_validatedRequest.Raw = parameters;
_validatedRequest.Client = client;
_validatedRequest.Options = _options;
/////////////////////////////////////////////
// check grant type
/////////////////////////////////////////////
var grantType = parameters.Get(Constants.TokenRequest.GrantType);
if (grantType.IsMissing())
{
LogError("Grant type is missing.");
return(Invalid(Constants.TokenErrors.UnsupportedGrantType));
}
if (grantType.Length > _options.InputLengthRestrictions.GrantType)
{
LogError("Grant type is too long.");
return(Invalid(Constants.TokenErrors.UnsupportedGrantType));
}
_validatedRequest.GrantType = grantType;
// standard grant types
switch (grantType)
{
case Constants.GrantTypes.AuthorizationCode:
return(await RunValidationAsync(ValidateAuthorizationCodeRequestAsync, parameters));
case Constants.GrantTypes.ClientCredentials:
return(await RunValidationAsync(ValidateClientCredentialsRequestAsync, parameters));
case Constants.GrantTypes.Password:
return(await RunValidationAsync(ValidateResourceOwnerCredentialRequestAsync, parameters));
case Constants.GrantTypes.RefreshToken:
return(await RunValidationAsync(ValidateRefreshTokenRequestAsync, parameters));
}
// custom grant type
var result = await RunValidationAsync(ValidateCustomGrantRequestAsync, parameters);
if (result.IsError)
{
if (result.Error.IsPresent())
{
return(result);
}
LogError("Unsupported grant_type: " + grantType);
return(Invalid(Constants.TokenErrors.UnsupportedGrantType));
}
return(result);
}