adas-core/adas-core.Authentication/Attributes/AuthorizeRolesAttribute.cs

using System.Security.Claims;
using adas_core.Domain.Enums;
using Microsoft.AspNetCore.Mvc;
using Microsoft.AspNetCore.Mvc.Filters;

namespace adas_core.Authentication.Attributes;

[AttributeUsage(AttributeTargets.Method)]
public class AuthorizeRolesAttribute(PermissionEnum.RolesType type) : Attribute, IAuthorizationFilter
{
    public void OnAuthorization(AuthorizationFilterContext context)
    {
        var user = context.HttpContext.User;

        if (user.Identity?.IsAuthenticated != true)
        {
            context.Result = new UnauthorizedResult();
            return;
        }

        var roles = user.Claims.Where(c => c.Type == ClaimTypes.Role);

        if (type == PermissionEnum.RolesType.AuthSome) return;

        var hasRequiredRole = roles.Any(r => r.Value.StartsWith(type.ToString()));
        if (!hasRequiredRole) context.Result = new ForbidResult();
    }
}