refactor(plugins): restructure admin and message_gateway into standard layered sub-packages

backend/plugins/domain/admin/handler/middleware.go

@@ -0,0 +1,46 @@
+// Copyright 2026 Arctel.net
+// SPDX-License-Identifier: Apache-2.0
+
+package handler
+
+import (
+	"Wavelet/core/contracts"
+	"Wavelet/pkg/ginutil"
+	"Wavelet/pkg/logger"
+	"Wavelet/pkg/response"
+	"Wavelet/pkg/trace"
+	"Wavelet/plugins/domain/admin/errs"
+
+	"github.com/gin-gonic/gin"
+)
+
+// LoginAdminRequired 返回管理员权限校验中间件
+func LoginAdminRequired() gin.HandlerFunc {
+	return func(c *gin.Context) {
+		ctx, span := trace.Start(c.Request.Context(), "LoginAdminRequired")
+		defer span.End()
+
+		user, _ := ginutil.GetFromContext[*contracts.UserDTO](c, contracts.AuthUserObjKey)
+		if user == nil {
+			response.AbortNotFound(c, errs.AdminRequired)
+			return
+		}
+
+		// 如果是通过 Access Token 鉴权，需要检查令牌本身是否具有管理员权限
+		if tokenAuth, _ := ginutil.GetFromContext[bool](c, contracts.AuthTokenAuthKey); tokenAuth {
+			tokenAdmin, _ := ginutil.GetFromContext[bool](c, contracts.AuthTokenAdminKey)
+			if !tokenAdmin {
+				response.AbortNotFound(c, errs.TokenAdminRequired)
+				return
+			}
+		}
+
+		if !user.IsAdmin {
+			response.AbortNotFound(c, errs.AdminRequired)
+			return
+		}
+
+		logger.InfoF(ctx, "[LoginAdminRequired] %d %s", user.ID, user.Username)
+		c.Next()
+	}
+}