feat: add authentication

backend/middleware/auth.go

@@ -0,0 +1,27 @@
+package middleware
+
+import (
+	"errors"
+	"khairul169/garage-webui/utils"
+	"net/http"
+)
+
+func AuthMiddleware(next http.Handler) http.Handler {
+	authData := utils.GetEnv("AUTH_USER_PASS", "")
+
+	return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+		auth := utils.Session.Get(r, "authenticated")
+
+		if authData == "" {
+			next.ServeHTTP(w, r)
+			return
+		}
+
+		if auth == nil || !auth.(bool) {
+			utils.ResponseErrorStatus(w, errors.New("unauthorized"), http.StatusUnauthorized)
+			return
+		}
+
+		next.ServeHTTP(w, r)
+	})
+}