public Task BindModelAsync(ModelBindingContext bindingContext)
{
if (bindingContext == null)
{
throw new ArgumentNullException(nameof(bindingContext));
}
var logger = bindingContext.HttpContext.RequestServices.GetRequiredService <ILoggerFactory>();
var fallbackBinder = new SimpleTypeModelBinder(bindingContext.ModelType, logger);
var valueProviderResult = bindingContext.ValueProvider.GetValue(bindingContext.ModelName);
if (valueProviderResult == ValueProviderResult.None)
{
return(fallbackBinder.BindModelAsync(bindingContext));
}
bindingContext.ModelState.SetModelValue(bindingContext.ModelName, valueProviderResult);
var stringValue = valueProviderResult.FirstValue;
if (string.IsNullOrWhiteSpace(stringValue))
{
return(fallbackBinder.BindModelAsync(bindingContext));
}
var decryptedResult = _protection.Decrypt(stringValue);
bindingContext.Result = ModelBindingResult.Success(decryptedResult);
return(Task.CompletedTask);
}