feat: more role backend and admin/writer roles additions and adjustments

api/middleware/permission.go

@@ -0,0 +1,40 @@
+package middleware
+
+import (
+	"RenewCMS/api/pkg/access"
+	"RenewCMS/internal/domain/role"
+	"RenewCMS/internal/domain/user"
+	"RenewCMS/internal/infrastructure/useCases"
+	"net/http"
+)
+
+type grantCheck func(account user.User, key string) (role.GrantSet, error)
+
+func RequirePermission(getUser *useCases.GetUserUseCase, check *useCases.CheckPermissionUseCase, key string) func(http.Handler) http.Handler {
+	return enforce(getUser, check.Require, key)
+}
+
+func RequireFullScope(getUser *useCases.GetUserUseCase, check *useCases.CheckPermissionUseCase, key string) func(http.Handler) http.Handler {
+	return enforce(getUser, check.RequireAll, key)
+}
+
+func enforce(getUser *useCases.GetUserUseCase, verify grantCheck, key string) func(http.Handler) http.Handler {
+	return func(next http.Handler) http.Handler {
+		return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+			currentUser, ok := resolveCurrentUser(getUser, w, r)
+			if !ok {
+				return
+			}
+
+			grants, err := verify(currentUser, key)
+			if err != nil {
+				if !access.WriteIfMissingPermission(w, err) {
+					http.Error(w, "Internal server error", http.StatusInternalServerError)
+				}
+				return
+			}
+
+			next.ServeHTTP(w, r.WithContext(access.NewContext(r.Context(), grants)))
+		})
+	}
+}