AiDOPWarehouse/server/Plugins/Admin.NET.Plugin.AiDOP/Infrastructure/S8/S8ExceptionActionAttribute.cs

using Admin.NET.Core;
using Admin.NET.Plugin.AiDOP.Const.S8;
using Microsoft.AspNetCore.Http;
using Microsoft.AspNetCore.Mvc;
using Microsoft.AspNetCore.Mvc.Filters;
using Microsoft.Extensions.DependencyInjection;

namespace Admin.NET.Plugin.AiDOP.Infrastructure.S8;

/// <summary>
/// S8-ACTION-PERMISSION-1：异常单动作的授权门。取代这些 Action 上原有的
/// <see cref="S8PermissionAttribute"/>。
///
/// <para><b>为什么要换掉</b>：<see cref="S8PermissionAttribute"/> 依赖平台的
/// <c>GetOwnBtnPermList()</c>，而那条链<b>不校验角色的租户</b>，实测可被别家租户的角色
/// 带进 <c>s8:exception:assign</c> 等能力（取证见 <see cref="S8TenantRoleResolver"/>）。
/// 同一个问题不能有两个 authority，所以异常动作统一改由
/// <see cref="IS8ExceptionActionAuthorizer"/> 回答；<see cref="S8PermissionAttribute"/>
/// 继续负责配置面（<c>s8:config:*</c>），并同样补上租户交集。</para>
///
/// <para><b>仍在 Action 之前返回 403</b>：与旧实现同一位置、同一文案，
/// DB 零写入，不把权限拓扑回显给调用方。</para>
/// </summary>
[AttributeUsage(AttributeTargets.Class | AttributeTargets.Method, AllowMultiple = false, Inherited = true)]
public sealed class S8ExceptionActionAttribute : Attribute, IAsyncAuthorizationFilter
{
    /// <summary>本 Action 要求的动作码，必须取自 <see cref="S8ExceptionActionCode"/>。</summary>
    public string Code { get; }

    public S8ExceptionActionAttribute(string code)
    {
        if (string.IsNullOrWhiteSpace(code))
            throw new ArgumentException("S8 动作码不能为空", nameof(code));
        if (!S8ExceptionActionCatalog.IsKnown(code))
            throw new ArgumentException($"S8 动作码不在目录中：{code}", nameof(code));
        Code = code;
    }

    public async Task OnAuthorizationAsync(AuthorizationFilterContext context)
    {
        var user = context.HttpContext.User;
        if (user?.Identity?.IsAuthenticated != true) return;   // 401 交回平台管道

        var services = context.HttpContext.RequestServices;

        // 超管豁免：与 JwtHandler.CheckAuthorizeAsync / S8PermissionAttribute 同口径。
        var userManager = services.GetService<UserManager>();
        if (userManager is { SuperAdmin: true }) return;

        var authorizer = services.GetService<IS8ExceptionActionAuthorizer>();
        var scopeResolver = services.GetService<S8TrustedScopeResolver>();
        if (authorizer == null || scopeResolver == null || userManager == null)
        {
            // 拿不到判定所需服务时按拒绝处理。绝不 fail-open ——
            // 本模块的事故类型全部是「本不该放行却放行了」。
            context.Result = Forbid();
            return;
        }

        try
        {
            var scope = await scopeResolver.ResolveAsync();
            var result = await authorizer.AuthorizeAsync(scope.TenantId, userManager.UserId, Code);
            if (result.Allowed) return;
        }
        catch
        {
            // 作用域解析失败（如超管未选租户）同样按拒绝处理，语义与既有 400/403 边界一致。
        }

        context.Result = Forbid();
    }

    private static ObjectResult Forbid() => new(new { message = "没有权限执行该操作" })
    {
        StatusCode = StatusCodes.Status403Forbidden
    };
}