luticate2-api/Luticate2.Auth/Attributes/EntityAccessors/LuAttrArgumentAccessor.cs

using System.Reflection;
using Luticate2.Auth.Interfaces.Permissions;
using Microsoft.AspNetCore.Mvc.Controllers;
using Microsoft.AspNetCore.Mvc.Filters;

namespace Luticate2.Auth.Attributes.EntityAccessors
{
    public class LuAttrArgumentAccessor : ILuAttrEntityAccessor
    {
        public object GetEntity(ActionExecutingContext context, object id)
        {
            var actionDescriptor = context.ActionDescriptor as ControllerActionDescriptor;
            if (actionDescriptor != null)
            {
                var parameters = actionDescriptor.MethodInfo.GetParameters();
                foreach (var parameter in parameters)
                {
                    var attributes = parameter.GetCustomAttributes<LuPermissionArgAttribute>();
                    foreach (var attribute in attributes)
                    {
                        if (attribute.Id == id)
                        {
                            if (context.ActionArguments.ContainsKey(parameter.Name))
                            {
                                return context.ActionArguments[parameter.Name];
                            }
                        }
                    }
                }
            }
            return null;
        }
    }
}