public async Task <IActionResult> Token([FromForm] TokenModel model)
{
if (ModelState.IsValid)
{
var clientIdentity = ClientIdentityHelper.GetClientIdentity(model, Request.Headers);
var client = await _clientService.GetClient(clientIdentity);
if (!ClientValidator.IsGrantTypeSupported(client, model.GrantType))
{
// Client does not support grant type
throw new SecurityException();
}
return(model.GrantType switch
{
"client_credentials" => await GetTokenForClientCredentials(client),
"authorization_code" => await GetTokenForAuthorizationCode(model, client),
"refresh_token" => await GetTokenForRefreshToken(model, client),
_ => throw new SecurityException($"Grant {model.GrantType} is not supported"),
});
