public async Task ValidateAsync(ResourceOwnerPasswordValidationContext context)
{
var user = await _userManager.FindByNameAsync(context.UserName);
if (user != null)
{
if (await _signInManager.CanSignInAsync(user))
{
if (_userManager.SupportsUserLockout &&
await _userManager.IsLockedOutAsync(user))
{
context.Result = new GrantValidationResult(IdentityServer4.Models.TokenRequestErrors.InvalidGrant);
}
else if (await _userManager.CheckPasswordAsync(user, context.Password))
{
if (_userManager.SupportsUserLockout)
{
await _userManager.ResetAccessFailedCountAsync(user);
}
var sub = await _userManager.GetUserIdAsync(user);
context.Result = new GrantValidationResult(sub, AuthenticationMethods.Password);
}
else if (_userManager.SupportsUserLockout)
{
await _userManager.AccessFailedAsync(user);
}
}
}
}