feat: add Go backend compatibility service scaffold

docker-compose-v4.yml

@@ -28,6 +28,35 @@ services:
       retries: 5
       start_period: 60s
 
+  backend-go:
+    profiles: ["go-backend"]
+    build:
+      context: ./go-backend
+    container_name: go-backend
+    restart: unless-stopped
+    logging:
+      driver: json-file
+      options:
+        max-size: "20m"
+    environment:
+      DB_PATH: /app/data/gost.db
+      JWT_SECRET: ${JWT_SECRET}
+      LOG_DIR: /app/logs
+      SERVER_ADDR: :6365
+    ports:
+      - "${GO_BACKEND_PORT:-6366}:6365"
+    volumes:
+      - backend_logs:/app/logs
+      - sqlite_data:/app/data
+    networks:
+      - gost-network
+    healthcheck:
+      test: ["CMD", "sh", "-c", "wget --no-verbose --tries=1 --spider http://localhost:6365/flow/test || exit 1"]
+      interval: 30s
+      timeout: 10s
+      retries: 5
+      start_period: 30s
+
   frontend:
     image: ghcr.io/sagit-chu/vite-frontend:2.0.7-beta
     container_name: vite-frontend

docker-compose-v6.yml

@@ -28,6 +28,35 @@ services:
       retries: 5
       start_period: 60s
 
+  backend-go:
+    profiles: ["go-backend"]
+    build:
+      context: ./go-backend
+    container_name: go-backend
+    restart: unless-stopped
+    logging:
+      driver: json-file
+      options:
+        max-size: "20m"
+    environment:
+      DB_PATH: /app/data/gost.db
+      JWT_SECRET: ${JWT_SECRET}
+      LOG_DIR: /app/logs
+      SERVER_ADDR: :6365
+    ports:
+      - "${GO_BACKEND_PORT:-6366}:6365"
+    volumes:
+      - backend_logs:/app/logs
+      - sqlite_data:/app/data
+    networks:
+      - gost-network
+    healthcheck:
+      test: ["CMD", "sh", "-c", "wget --no-verbose --tries=1 --spider http://localhost:6365/flow/test || exit 1"]
+      interval: 30s
+      timeout: 10s
+      retries: 5
+      start_period: 30s
+
   frontend:
     image: ghcr.io/sagit-chu/vite-frontend:2.0.7-beta
     container_name: vite-frontend

go-backend/Dockerfile

@@ -0,0 +1,17 @@
+FROM golang:1.23-bookworm AS builder
+WORKDIR /src
+
+COPY go.mod ./
+RUN go mod download
+
+COPY . .
+RUN CGO_ENABLED=0 GOOS=linux GOARCH=amd64 go build -o /out/paneld ./cmd/paneld
+
+FROM debian:bookworm-slim
+WORKDIR /app
+RUN apt-get update && apt-get install -y --no-install-recommends ca-certificates wget && rm -rf /var/lib/apt/lists/*
+COPY --from=builder /out/paneld /app/paneld
+
+ENV SERVER_ADDR=:6365
+EXPOSE 6365
+ENTRYPOINT ["/app/paneld"]

go-backend/Makefile

@@ -0,0 +1,12 @@
+GO ?= go
+
+.PHONY: test build run
+
+test:
+	$(GO) test ./...
+
+build:
+	$(GO) build ./cmd/paneld
+
+run:
+	SERVER_ADDR=:6365 $(GO) run ./cmd/paneld

go-backend/cmd/paneld/main.go

@@ -0,0 +1,50 @@
+package main
+
+import (
+	"context"
+	"errors"
+	"log"
+	"net/http"
+	"os"
+	"os/signal"
+	"syscall"
+	"time"
+
+	"go-backend/internal/app"
+	"go-backend/internal/config"
+)
+
+func main() {
+	cfg := config.FromEnv()
+	if cfg.JWTSecret == "" {
+		log.Println("warning: JWT_SECRET is empty")
+	}
+
+	a, err := app.New(cfg)
+	if err != nil {
+		log.Fatalf("failed to create app: %v", err)
+	}
+
+	errCh := make(chan error, 1)
+	go func() {
+		errCh <- a.Run()
+	}()
+
+	sigCh := make(chan os.Signal, 1)
+	signal.Notify(sigCh, syscall.SIGINT, syscall.SIGTERM)
+
+	select {
+	case sig := <-sigCh:
+		log.Printf("received signal %s, shutting down", sig)
+	case runErr := <-errCh:
+		if runErr != nil && !errors.Is(runErr, http.ErrServerClosed) {
+			log.Fatalf("server stopped unexpectedly: %v", runErr)
+		}
+	}
+
+	ctx, cancel := context.WithTimeout(context.Background(), 10*time.Second)
+	defer cancel()
+	if err := a.Shutdown(ctx); err != nil {
+		log.Fatalf("shutdown failed: %v", err)
+	}
+}

go-backend/go.mod

@@ -0,0 +1,23 @@
+module go-backend
+
+go 1.23.0
+
+toolchain go1.24.4
+
+require (
+	github.com/gorilla/websocket v1.5.3
+	modernc.org/sqlite v1.37.1
+)
+
+require (
+	github.com/dustin/go-humanize v1.0.1 // indirect
+	github.com/google/uuid v1.6.0 // indirect
+	github.com/mattn/go-isatty v0.0.20 // indirect
+	github.com/ncruces/go-strftime v0.1.9 // indirect
+	github.com/remyoudompheng/bigfft v0.0.0-20230129092748-24d4a6f8daec // indirect
+	golang.org/x/exp v0.0.0-20250408133849-7e4ce0ab07d0 // indirect
+	golang.org/x/sys v0.33.0 // indirect
+	modernc.org/libc v1.65.7 // indirect
+	modernc.org/mathutil v1.7.1 // indirect
+	modernc.org/memory v1.11.0 // indirect
+)

go-backend/go.sum

@@ -0,0 +1,49 @@
+github.com/dustin/go-humanize v1.0.1 h1:GzkhY7T5VNhEkwH0PVJgjz+fX1rhBrR7pRT3mDkpeCY=
+github.com/dustin/go-humanize v1.0.1/go.mod h1:Mu1zIs6XwVuF/gI1OepvI0qD18qycQx+mFykh5fBlto=
+github.com/google/pprof v0.0.0-20250317173921-a4b03ec1a45e h1:ijClszYn+mADRFY17kjQEVQ1XRhq2/JR1M3sGqeJoxs=
+github.com/google/pprof v0.0.0-20250317173921-a4b03ec1a45e/go.mod h1:boTsfXsheKC2y+lKOCMpSfarhxDeIzfZG1jqGcPl3cA=
+github.com/google/uuid v1.6.0 h1:NIvaJDMOsjHA8n1jAhLSgzrAzy1Hgr+hNrb57e+94F0=
+github.com/google/uuid v1.6.0/go.mod h1:TIyPZe4MgqvfeYDBFedMoGGpEw/LqOeaOT+nhxU+yHo=
+github.com/gorilla/websocket v1.5.3 h1:saDtZ6Pbx/0u+bgYQ3q96pZgCzfhKXGPqt7kZ72aNNg=
+github.com/gorilla/websocket v1.5.3/go.mod h1:YR8l580nyteQvAITg2hZ9XVh4b55+EU/adAjf1fMHhE=
+github.com/mattn/go-isatty v0.0.20 h1:xfD0iDuEKnDkl03q4limB+vH+GxLEtL/jb4xVJSWWEY=
+github.com/mattn/go-isatty v0.0.20/go.mod h1:W+V8PltTTMOvKvAeJH7IuucS94S2C6jfK/D7dTCTo3Y=
+github.com/ncruces/go-strftime v0.1.9 h1:bY0MQC28UADQmHmaF5dgpLmImcShSi2kHU9XLdhx/f4=
+github.com/ncruces/go-strftime v0.1.9/go.mod h1:Fwc5htZGVVkseilnfgOVb9mKy6w1naJmn9CehxcKcls=
+github.com/remyoudompheng/bigfft v0.0.0-20230129092748-24d4a6f8daec h1:W09IVJc94icq4NjY3clb7Lk8O1qJ8BdBEF8z0ibU0rE=
+github.com/remyoudompheng/bigfft v0.0.0-20230129092748-24d4a6f8daec/go.mod h1:qqbHyh8v60DhA7CoWK5oRCqLrMHRGoxYCSS9EjAz6Eo=
+golang.org/x/exp v0.0.0-20250408133849-7e4ce0ab07d0 h1:R84qjqJb5nVJMxqWYb3np9L5ZsaDtB+a39EqjV0JSUM=
+golang.org/x/exp v0.0.0-20250408133849-7e4ce0ab07d0/go.mod h1:S9Xr4PYopiDyqSyp5NjCrhFrqg6A5zA2E/iPHPhqnS8=
+golang.org/x/mod v0.24.0 h1:ZfthKaKaT4NrhGVZHO1/WDTwGES4De8KtWO0SIbNJMU=
+golang.org/x/mod v0.24.0/go.mod h1:IXM97Txy2VM4PJ3gI61r1YEk/gAj6zAHN3AdZt6S9Ww=
+golang.org/x/sync v0.14.0 h1:woo0S4Yywslg6hp4eUFjTVOyKt0RookbpAHG4c1HmhQ=
+golang.org/x/sync v0.14.0/go.mod h1:1dzgHSNfp02xaA81J2MS99Qcpr2w7fw1gpm99rleRqA=
+golang.org/x/sys v0.6.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
+golang.org/x/sys v0.33.0 h1:q3i8TbbEz+JRD9ywIRlyRAQbM0qF7hu24q3teo2hbuw=
+golang.org/x/sys v0.33.0/go.mod h1:BJP2sWEmIv4KK5OTEluFJCKSidICx8ciO85XgH3Ak8k=
+golang.org/x/tools v0.33.0 h1:4qz2S3zmRxbGIhDIAgjxvFutSvH5EfnsYrRBj0UI0bc=
+golang.org/x/tools v0.33.0/go.mod h1:CIJMaWEY88juyUfo7UbgPqbC8rU2OqfAV1h2Qp0oMYI=
+modernc.org/cc/v4 v4.26.1 h1:+X5NtzVBn0KgsBCBe+xkDC7twLb/jNVj9FPgiwSQO3s=
+modernc.org/cc/v4 v4.26.1/go.mod h1:uVtb5OGqUKpoLWhqwNQo/8LwvoiEBLvZXIQ/SmO6mL0=
+modernc.org/ccgo/v4 v4.28.0 h1:rjznn6WWehKq7dG4JtLRKxb52Ecv8OUGah8+Z/SfpNU=
+modernc.org/ccgo/v4 v4.28.0/go.mod h1:JygV3+9AV6SmPhDasu4JgquwU81XAKLd3OKTUDNOiKE=
+modernc.org/fileutil v1.3.1 h1:8vq5fe7jdtEvoCf3Zf9Nm0Q05sH6kGx0Op2CPx1wTC8=
+modernc.org/fileutil v1.3.1/go.mod h1:HxmghZSZVAz/LXcMNwZPA/DRrQZEVP9VX0V4LQGQFOc=
+modernc.org/gc/v2 v2.6.5 h1:nyqdV8q46KvTpZlsw66kWqwXRHdjIlJOhG6kxiV/9xI=
+modernc.org/gc/v2 v2.6.5/go.mod h1:YgIahr1ypgfe7chRuJi2gD7DBQiKSLMPgBQe9oIiito=
+modernc.org/libc v1.65.7 h1:Ia9Z4yzZtWNtUIuiPuQ7Qf7kxYrxP1/jeHZzG8bFu00=
+modernc.org/libc v1.65.7/go.mod h1:011EQibzzio/VX3ygj1qGFt5kMjP0lHb0qCW5/D/pQU=
+modernc.org/mathutil v1.7.1 h1:GCZVGXdaN8gTqB1Mf/usp1Y/hSqgI2vAGGP4jZMCxOU=
+modernc.org/mathutil v1.7.1/go.mod h1:4p5IwJITfppl0G4sUEDtCr4DthTaT47/N3aT6MhfgJg=
+modernc.org/memory v1.11.0 h1:o4QC8aMQzmcwCK3t3Ux/ZHmwFPzE6hf2Y5LbkRs+hbI=
+modernc.org/memory v1.11.0/go.mod h1:/JP4VbVC+K5sU2wZi9bHoq2MAkCnrt2r98UGeSK7Mjw=
+modernc.org/opt v0.1.4 h1:2kNGMRiUjrp4LcaPuLY2PzUfqM/w9N23quVwhKt5Qm8=
+modernc.org/opt v0.1.4/go.mod h1:03fq9lsNfvkYSfxrfUhZCWPk1lm4cq4N+Bh//bEtgns=
+modernc.org/sortutil v1.2.1 h1:+xyoGf15mM3NMlPDnFqrteY07klSFxLElE2PVuWIJ7w=
+modernc.org/sortutil v1.2.1/go.mod h1:7ZI3a3REbai7gzCLcotuw9AC4VZVpYMjDzETGsSMqJE=
+modernc.org/sqlite v1.37.1 h1:EgHJK/FPoqC+q2YBXg7fUmES37pCHFc97sI7zSayBEs=
+modernc.org/sqlite v1.37.1/go.mod h1:XwdRtsE1MpiBcL54+MbKcaDvcuej+IYSMfLN6gSKV8g=
+modernc.org/strutil v1.2.1 h1:UneZBkQA+DX2Rp35KcM69cSsNES9ly8mQWD71HKlOA0=
+modernc.org/strutil v1.2.1/go.mod h1:EHkiggD70koQxjVdSBM3JKM7k6L0FbGE5eymy9i3B9A=
+modernc.org/token v1.1.0 h1:Xl7Ap9dKaEs5kLoOQeQmPWevfnk/DM5qcLcYlA8ys6Y=
+modernc.org/token v1.1.0/go.mod h1:UGzOrNV1mAFSEB63lOFHIpNRUVMvYTc6yu1SMY/XTDM=

go-backend/internal/app/app.go

@@ -0,0 +1,53 @@
+package app
+
+import (
+	"context"
+	"fmt"
+	"net/http"
+	"time"
+
+	"go-backend/internal/config"
+	httpserver "go-backend/internal/http"
+	"go-backend/internal/http/handler"
+	"go-backend/internal/store/sqlite"
+)
+
+type App struct {
+	cfg    config.Config
+	server *http.Server
+	repo   *sqlite.Repository
+}
+
+func New(cfg config.Config) (*App, error) {
+	repo, err := sqlite.Open(cfg.DBPath)
+	if err != nil {
+		return nil, fmt.Errorf("open sqlite: %w", err)
+	}
+
+	h := handler.New(repo, cfg.JWTSecret)
+	router := httpserver.NewRouter(h, cfg.JWTSecret)
+
+	s := &http.Server{
+		Addr:              cfg.Addr,
+		Handler:           router,
+		ReadTimeout:       30 * time.Second,
+		ReadHeaderTimeout: 5 * time.Second,
+		WriteTimeout:      30 * time.Second,
+		IdleTimeout:       60 * time.Second,
+	}
+
+	return &App{cfg: cfg, server: s, repo: repo}, nil
+}
+
+func (a *App) Run() error {
+	return a.server.ListenAndServe()
+}
+
+func (a *App) Shutdown(ctx context.Context) error {
+	shutdownErr := a.server.Shutdown(ctx)
+	closeErr := a.repo.Close()
+	if shutdownErr != nil {
+		return shutdownErr
+	}
+	return closeErr
+}

go-backend/internal/auth/jwt.go

@@ -0,0 +1,121 @@
+package auth
+
+import (
+	"crypto/hmac"
+	"crypto/sha256"
+	"encoding/base64"
+	"encoding/json"
+	"errors"
+	"strconv"
+	"time"
+)
+
+const (
+	algorithm  = "HmacSHA256"
+	expireTime = 90 * 24 * time.Hour
+)
+
+type Claims struct {
+	Sub    string `json:"sub"`
+	Iat    int64  `json:"iat"`
+	Exp    int64  `json:"exp"`
+	User   string `json:"user"`
+	Name   string `json:"name"`
+	RoleID int    `json:"role_id"`
+}
+
+type tokenHeader struct {
+	Alg string `json:"alg"`
+	Typ string `json:"typ"`
+}
+
+func GenerateToken(userID int64, username string, roleID int, secret string) (string, error) {
+	now := time.Now()
+	header := tokenHeader{Alg: algorithm, Typ: "JWT"}
+	claims := Claims{
+		Sub:    strconv.FormatInt(userID, 10),
+		Iat:    now.Unix(),
+		Exp:    now.Add(expireTime).Unix(),
+		User:   username,
+		Name:   username,
+		RoleID: roleID,
+	}
+
+	headerPart, err := encodeJSON(header)
+	if err != nil {
+		return "", err
+	}
+	payloadPart, err := encodeJSON(claims)
+	if err != nil {
+		return "", err
+	}
+	sig := sign(headerPart+"."+payloadPart, secret)
+
+	return headerPart + "." + payloadPart + "." + sig, nil
+}
+
+func ValidateToken(token, secret string) (Claims, bool) {
+	claims, err := ParseClaims(token, secret)
+	if err != nil {
+		return Claims{}, false
+	}
+	return claims, true
+}
+
+func ParseClaims(token, secret string) (Claims, error) {
+	parts := splitToken(token)
+	if len(parts) != 3 {
+		return Claims{}, errors.New("invalid token")
+	}
+
+	signedContent := parts[0] + "." + parts[1]
+	expected := sign(signedContent, secret)
+	if !hmac.Equal([]byte(expected), []byte(parts[2])) {
+		return Claims{}, errors.New("invalid signature")
+	}
+
+	payloadBytes, err := base64.RawURLEncoding.DecodeString(parts[1])
+	if err != nil {
+		return Claims{}, err
+	}
+
+	var claims Claims
+	if err := json.Unmarshal(payloadBytes, &claims); err != nil {
+		return Claims{}, err
+	}
+
+	if claims.Exp <= time.Now().Unix() {
+		return Claims{}, errors.New("token expired")
+	}
+
+	return claims, nil
+}
+
+func splitToken(token string) []string {
+	parts := make([]string, 0, 3)
+	current := ""
+	for i := 0; i < len(token); i++ {
+		if token[i] == '.' {
+			parts = append(parts, current)
+			current = ""
+			continue
+		}
+		current += string(token[i])
+	}
+	parts = append(parts, current)
+	return parts
+}
+
+func encodeJSON(v interface{}) (string, error) {
+	raw, err := json.Marshal(v)
+	if err != nil {
+		return "", err
+	}
+	return base64.RawURLEncoding.EncodeToString(raw), nil
+}
+
+func sign(content, secret string) string {
+	h := hmac.New(sha256.New, []byte(secret))
+	h.Write([]byte(content))
+	return base64.RawURLEncoding.EncodeToString(h.Sum(nil))
+}

go-backend/internal/config/config.go

@@ -0,0 +1,28 @@
+package config
+
+import "os"
+
+type Config struct {
+	Addr      string
+	DBPath    string
+	JWTSecret string
+	LogDir    string
+}
+
+func FromEnv() Config {
+	cfg := Config{
+		Addr:      getEnv("SERVER_ADDR", ":6365"),
+		DBPath:    getEnv("DB_PATH", "/app/data/gost.db"),
+		JWTSecret: getEnv("JWT_SECRET", ""),
+		LogDir:    getEnv("LOG_DIR", "/app/logs"),
+	}
+
+	return cfg
+}
+
+func getEnv(key, fallback string) string {
+	if v := os.Getenv(key); v != "" {
+		return v
+	}
+	return fallback
+}

go-backend/internal/http/handler/handler.go

@@ -0,0 +1,574 @@
+package handler
+
+import (
+	"database/sql"
+	"encoding/json"
+	"io"
+	"net/http"
+	"sort"
+	"strconv"
+	"strings"
+	"time"
+
+	"go-backend/internal/auth"
+	"go-backend/internal/http/middleware"
+	"go-backend/internal/http/response"
+	"go-backend/internal/security"
+	"go-backend/internal/store/sqlite"
+	"go-backend/internal/ws"
+)
+
+type Handler struct {
+	repo      *sqlite.Repository
+	jwtSecret string
+	wsServer  *ws.Server
+}
+
+type loginRequest struct {
+	Username  string `json:"username"`
+	Password  string `json:"password"`
+	CaptchaID string `json:"captchaId"`
+}
+
+type nameRequest struct {
+	Name string `json:"name"`
+}
+
+type configSingleRequest struct {
+	Name  string `json:"name"`
+	Value string `json:"value"`
+}
+
+type changePasswordRequest struct {
+	NewUsername     string `json:"newUsername"`
+	CurrentPassword string `json:"currentPassword"`
+	NewPassword     string `json:"newPassword"`
+	ConfirmPassword string `json:"confirmPassword"`
+}
+
+type flowItem struct {
+	N string `json:"n"`
+	U int64  `json:"u"`
+	D int64  `json:"d"`
+}
+
+func New(repo *sqlite.Repository, jwtSecret string) *Handler {
+	return &Handler{repo: repo, jwtSecret: jwtSecret, wsServer: ws.NewServer(repo, jwtSecret)}
+}
+
+func (h *Handler) WebSocketHandler() http.Handler {
+	return h.wsServer
+}
+
+func (h *Handler) Register(mux *http.ServeMux) {
+	mux.HandleFunc("/api/v1/user/login", h.login)
+	mux.HandleFunc("/api/v1/config/get", h.getConfigByName)
+	mux.HandleFunc("/api/v1/config/list", h.getConfigs)
+	mux.HandleFunc("/api/v1/config/update", h.updateConfigs)
+	mux.HandleFunc("/api/v1/config/update-single", h.updateSingleConfig)
+	mux.HandleFunc("/api/v1/captcha/check", h.checkCaptcha)
+	mux.HandleFunc("/api/v1/user/package", h.userPackage)
+	mux.HandleFunc("/api/v1/user/updatePassword", h.updatePassword)
+
+	mux.HandleFunc("/flow/test", h.flowTest)
+	mux.HandleFunc("/flow/config", h.flowConfig)
+	mux.HandleFunc("/flow/upload", h.flowUpload)
+}
+
+func (h *Handler) login(w http.ResponseWriter, r *http.Request) {
+	if r.Method != http.MethodPost {
+		response.WriteJSON(w, response.ErrDefault("请求失败"))
+		return
+	}
+
+	var req loginRequest
+	if err := decodeJSON(r.Body, &req); err != nil {
+		response.WriteJSON(w, response.Err(500, "请求参数错误"))
+		return
+	}
+
+	if strings.TrimSpace(req.Username) == "" {
+		response.WriteJSON(w, response.Err(500, "用户名不能为空"))
+		return
+	}
+	if strings.TrimSpace(req.Password) == "" {
+		response.WriteJSON(w, response.Err(500, "密码不能为空"))
+		return
+	}
+
+	captchaEnabled, err := h.captchaEnabled()
+	if err != nil {
+		response.WriteJSON(w, response.Err(-2, err.Error()))
+		return
+	}
+	if captchaEnabled && strings.TrimSpace(req.CaptchaID) == "" {
+		response.WriteJSON(w, response.ErrDefault("验证码校验失败"))
+		return
+	}
+
+	user, err := h.repo.GetUserByUsername(req.Username)
+	if err != nil {
+		response.WriteJSON(w, response.Err(-2, err.Error()))
+		return
+	}
+	if user == nil {
+		response.WriteJSON(w, response.ErrDefault("账号或密码错误"))
+		return
+	}
+	if user.Pwd != security.MD5(req.Password) {
+		response.WriteJSON(w, response.ErrDefault("账号或密码错误"))
+		return
+	}
+	if user.Status == 0 {
+		response.WriteJSON(w, response.ErrDefault("账号被停用"))
+		return
+	}
+
+	token, err := auth.GenerateToken(user.ID, user.User, user.RoleID, h.jwtSecret)
+	if err != nil {
+		response.WriteJSON(w, response.Err(-2, err.Error()))
+		return
+	}
+
+	requirePasswordChange := req.Username == "admin_user" || req.Password == "admin_user"
+	response.WriteJSON(w, response.OK(map[string]interface{}{
+		"token":                 token,
+		"name":                  user.User,
+		"role_id":               user.RoleID,
+		"requirePasswordChange": requirePasswordChange,
+	}))
+}
+
+func (h *Handler) getConfigByName(w http.ResponseWriter, r *http.Request) {
+	if r.Method != http.MethodPost {
+		response.WriteJSON(w, response.ErrDefault("请求失败"))
+		return
+	}
+
+	var req nameRequest
+	if err := decodeJSON(r.Body, &req); err != nil {
+		response.WriteJSON(w, response.ErrDefault("配置名称不能为空"))
+		return
+	}
+	if strings.TrimSpace(req.Name) == "" {
+		response.WriteJSON(w, response.ErrDefault("配置名称不能为空"))
+		return
+	}
+
+	cfg, err := h.repo.GetConfigByName(req.Name)
+	if err != nil {
+		response.WriteJSON(w, response.Err(-2, err.Error()))
+		return
+	}
+	if cfg == nil {
+		response.WriteJSON(w, response.ErrDefault("配置不存在"))
+		return
+	}
+
+	response.WriteJSON(w, response.OK(cfg))
+}
+
+func (h *Handler) getConfigs(w http.ResponseWriter, r *http.Request) {
+	if r.Method != http.MethodPost {
+		response.WriteJSON(w, response.ErrDefault("请求失败"))
+		return
+	}
+
+	cfgMap, err := h.repo.ListConfigs()
+	if err != nil {
+		response.WriteJSON(w, response.Err(-2, err.Error()))
+		return
+	}
+	response.WriteJSON(w, response.OK(cfgMap))
+}
+
+func (h *Handler) checkCaptcha(w http.ResponseWriter, r *http.Request) {
+	if r.Method != http.MethodPost {
+		response.WriteJSON(w, response.ErrDefault("请求失败"))
+		return
+	}
+
+	enabled, err := h.captchaEnabled()
+	if err != nil {
+		response.WriteJSON(w, response.Err(-2, err.Error()))
+		return
+	}
+	if enabled {
+		response.WriteJSON(w, response.OK(1))
+		return
+	}
+	response.WriteJSON(w, response.OK(0))
+}
+
+func (h *Handler) flowTest(w http.ResponseWriter, _ *http.Request) {
+	w.Header().Set("Content-Type", "text/plain; charset=utf-8")
+	_, _ = w.Write([]byte("test"))
+}
+
+func (h *Handler) flowConfig(w http.ResponseWriter, r *http.Request) {
+	secret := r.URL.Query().Get("secret")
+	if ok, _ := h.repo.NodeExistsBySecret(secret); !ok {
+		w.Header().Set("Content-Type", "text/plain; charset=utf-8")
+		_, _ = w.Write([]byte("ok"))
+		return
+	}
+
+	_, _ = readAndDecryptFlowBody(r.Body, secret)
+	w.Header().Set("Content-Type", "text/plain; charset=utf-8")
+	_, _ = w.Write([]byte("ok"))
+}
+
+func (h *Handler) flowUpload(w http.ResponseWriter, r *http.Request) {
+	secret := r.URL.Query().Get("secret")
+	if ok, _ := h.repo.NodeExistsBySecret(secret); !ok {
+		w.Header().Set("Content-Type", "text/plain; charset=utf-8")
+		_, _ = w.Write([]byte("ok"))
+		return
+	}
+
+	raw, err := readAndDecryptFlowBody(r.Body, secret)
+	if err == nil && strings.TrimSpace(raw) != "" {
+		var items []flowItem
+		if json.Unmarshal([]byte(raw), &items) == nil {
+			for _, item := range items {
+				parts := strings.Split(item.N, "_")
+				if len(parts) < 3 || item.N == "web_api" {
+					continue
+				}
+				forwardID, err1 := strconv.ParseInt(parts[0], 10, 64)
+				userID, err2 := strconv.ParseInt(parts[1], 10, 64)
+				userTunnelID, err3 := strconv.ParseInt(parts[2], 10, 64)
+				if err1 != nil || err2 != nil || err3 != nil {
+					continue
+				}
+				_ = h.repo.AddFlow(forwardID, userID, userTunnelID, item.D, item.U)
+			}
+		}
+	}
+
+	w.Header().Set("Content-Type", "text/plain; charset=utf-8")
+	_, _ = w.Write([]byte("ok"))
+}
+
+func (h *Handler) updateConfigs(w http.ResponseWriter, r *http.Request) {
+	if r.Method != http.MethodPost {
+		response.WriteJSON(w, response.ErrDefault("请求失败"))
+		return
+	}
+
+	var payload map[string]string
+	if err := decodeJSON(r.Body, &payload); err != nil {
+		response.WriteJSON(w, response.ErrDefault("配置数据不能为空"))
+		return
+	}
+	if len(payload) == 0 {
+		response.WriteJSON(w, response.ErrDefault("配置数据不能为空"))
+		return
+	}
+
+	now := time.Now().UnixMilli()
+	for k, v := range payload {
+		key := strings.TrimSpace(k)
+		if key == "" {
+			continue
+		}
+		if err := h.repo.UpsertConfig(key, v, now); err != nil {
+			response.WriteJSON(w, response.Err(-2, err.Error()))
+			return
+		}
+	}
+
+	response.WriteJSON(w, response.OKEmpty())
+}
+
+func (h *Handler) updateSingleConfig(w http.ResponseWriter, r *http.Request) {
+	if r.Method != http.MethodPost {
+		response.WriteJSON(w, response.ErrDefault("请求失败"))
+		return
+	}
+
+	var req configSingleRequest
+	if err := decodeJSON(r.Body, &req); err != nil {
+		response.WriteJSON(w, response.ErrDefault("配置名称不能为空"))
+		return
+	}
+	if strings.TrimSpace(req.Name) == "" {
+		response.WriteJSON(w, response.ErrDefault("配置名称不能为空"))
+		return
+	}
+	if strings.TrimSpace(req.Value) == "" {
+		response.WriteJSON(w, response.ErrDefault("配置值不能为空"))
+		return
+	}
+
+	if err := h.repo.UpsertConfig(strings.TrimSpace(req.Name), req.Value, time.Now().UnixMilli()); err != nil {
+		response.WriteJSON(w, response.Err(-2, err.Error()))
+		return
+	}
+
+	response.WriteJSON(w, response.OKEmpty())
+}
+
+func (h *Handler) userPackage(w http.ResponseWriter, r *http.Request) {
+	if r.Method != http.MethodPost {
+		response.WriteJSON(w, response.ErrDefault("请求失败"))
+		return
+	}
+
+	claims, ok := r.Context().Value(middleware.ClaimsContextKey).(auth.Claims)
+	if !ok {
+		response.WriteJSON(w, response.Err(401, "无效的token或token已过期"))
+		return
+	}
+
+	userID, err := parseUserID(claims.Sub)
+	if err != nil {
+		response.WriteJSON(w, response.Err(401, "无效的token或token已过期"))
+		return
+	}
+
+	user, err := h.repo.GetUserByID(userID)
+	if err != nil {
+		response.WriteJSON(w, response.Err(-2, err.Error()))
+		return
+	}
+	if user == nil {
+		response.WriteJSON(w, response.ErrDefault("用户不存在"))
+		return
+	}
+
+	tunnels, err := h.repo.GetUserPackageTunnels(userID)
+	if err != nil {
+		response.WriteJSON(w, response.Err(-2, err.Error()))
+		return
+	}
+
+	forwards, err := h.repo.GetUserPackageForwards(userID)
+	if err != nil {
+		response.WriteJSON(w, response.Err(-2, err.Error()))
+		return
+	}
+
+	stats, err := h.repo.GetStatisticsFlows(userID, 24)
+	if err != nil {
+		response.WriteJSON(w, response.Err(-2, err.Error()))
+		return
+	}
+
+	sort.Slice(stats, func(i, j int) bool { return stats[i].ID < stats[j].ID })
+
+	tunnelOut := make([]map[string]interface{}, 0, len(tunnels))
+	for _, t := range tunnels {
+		item := map[string]interface{}{
+			"id":             t.ID,
+			"userId":         t.UserID,
+			"tunnelId":       t.TunnelID,
+			"tunnelName":     t.TunnelName,
+			"tunnelFlow":     t.TunnelFlow,
+			"flow":           t.Flow,
+			"inFlow":         t.InFlow,
+			"outFlow":        t.OutFlow,
+			"num":            t.Num,
+			"flowResetTime":  t.FlowResetTime,
+			"expTime":        t.ExpTime,
+			"speedId":        nil,
+			"speedLimitName": nil,
+			"speed":          nil,
+		}
+		if t.SpeedID.Valid {
+			item["speedId"] = t.SpeedID.Int64
+		}
+		if t.SpeedLimit.Valid {
+			item["speedLimitName"] = t.SpeedLimit.String
+		}
+		if t.Speed.Valid {
+			item["speed"] = t.Speed.Int64
+		}
+		tunnelOut = append(tunnelOut, item)
+	}
+
+	forwardOut := make([]map[string]interface{}, 0, len(forwards))
+	for _, f := range forwards {
+		item := map[string]interface{}{
+			"id":          f.ID,
+			"name":        f.Name,
+			"tunnelId":    f.TunnelID,
+			"tunnelName":  f.TunnelName,
+			"inIp":        f.InIP,
+			"inPort":      nil,
+			"remoteAddr":  f.RemoteAddr,
+			"inFlow":      f.InFlow,
+			"outFlow":     f.OutFlow,
+			"status":      f.Status,
+			"createdTime": f.CreatedAt,
+		}
+		if f.InPort.Valid {
+			item["inPort"] = f.InPort.Int64
+		}
+		forwardOut = append(forwardOut, item)
+	}
+
+	payload := map[string]interface{}{
+		"userInfo": map[string]interface{}{
+			"id":            user.ID,
+			"name":          user.User,
+			"user":          user.User,
+			"status":        user.Status,
+			"flow":          user.Flow,
+			"inFlow":        user.InFlow,
+			"outFlow":       user.OutFlow,
+			"num":           user.Num,
+			"expTime":       user.ExpTime,
+			"flowResetTime": user.FlowResetTime,
+			"createdTime":   user.CreatedTime,
+			"updatedTime":   nullableNullInt64(user.UpdatedTime),
+		},
+		"tunnelPermissions": tunnelOut,
+		"forwards":          forwardOut,
+		"statisticsFlows":   stats,
+	}
+
+	response.WriteJSON(w, response.OK(payload))
+}
+
+func (h *Handler) updatePassword(w http.ResponseWriter, r *http.Request) {
+	if r.Method != http.MethodPost {
+		response.WriteJSON(w, response.ErrDefault("请求失败"))
+		return
+	}
+
+	claims, ok := r.Context().Value(middleware.ClaimsContextKey).(auth.Claims)
+	if !ok {
+		response.WriteJSON(w, response.Err(401, "无效的token或token已过期"))
+		return
+	}
+
+	userID, err := parseUserID(claims.Sub)
+	if err != nil {
+		response.WriteJSON(w, response.Err(401, "无效的token或token已过期"))
+		return
+	}
+
+	var req changePasswordRequest
+	if err := decodeJSON(r.Body, &req); err != nil {
+		response.WriteJSON(w, response.ErrDefault("修改账号密码时发生错误"))
+		return
+	}
+
+	if strings.TrimSpace(req.NewUsername) == "" {
+		response.WriteJSON(w, response.ErrDefault("新用户名不能为空"))
+		return
+	}
+	if strings.TrimSpace(req.CurrentPassword) == "" {
+		response.WriteJSON(w, response.ErrDefault("当前密码不能为空"))
+		return
+	}
+	if strings.TrimSpace(req.NewPassword) == "" {
+		response.WriteJSON(w, response.ErrDefault("新密码不能为空"))
+		return
+	}
+	if strings.TrimSpace(req.ConfirmPassword) == "" {
+		response.WriteJSON(w, response.ErrDefault("确认密码不能为空"))
+		return
+	}
+	if req.NewPassword != req.ConfirmPassword {
+		response.WriteJSON(w, response.ErrDefault("新密码和确认密码不匹配"))
+		return
+	}
+
+	user, err := h.repo.GetUserByID(userID)
+	if err != nil {
+		response.WriteJSON(w, response.Err(-2, err.Error()))
+		return
+	}
+	if user == nil {
+		response.WriteJSON(w, response.ErrDefault("用户不存在"))
+		return
+	}
+
+	if user.Pwd != security.MD5(req.CurrentPassword) {
+		response.WriteJSON(w, response.ErrDefault("当前密码错误"))
+		return
+	}
+
+	exists, err := h.repo.UsernameExistsExceptID(req.NewUsername, userID)
+	if err != nil {
+		response.WriteJSON(w, response.Err(-2, err.Error()))
+		return
+	}
+	if exists {
+		response.WriteJSON(w, response.ErrDefault("用户名已存在"))
+		return
+	}
+
+	if err := h.repo.UpdateUserNameAndPassword(userID, req.NewUsername, security.MD5(req.NewPassword), time.Now().UnixMilli()); err != nil {
+		response.WriteJSON(w, response.Err(-2, err.Error()))
+		return
+	}
+
+	response.WriteJSON(w, response.OKEmpty())
+}
+
+func (h *Handler) captchaEnabled() (bool, error) {
+	cfg, err := h.repo.GetConfigByName("captcha_enabled")
+	if err != nil {
+		return false, err
+	}
+	if cfg == nil {
+		return false, nil
+	}
+	return strings.EqualFold(cfg.Value, "true"), nil
+}
+
+func decodeJSON(body io.ReadCloser, out interface{}) error {
+	defer body.Close()
+	decoder := json.NewDecoder(body)
+	decoder.DisallowUnknownFields()
+	return decoder.Decode(out)
+}
+
+func parseUserID(sub string) (int64, error) {
+	id, err := strconv.ParseInt(sub, 10, 64)
+	if err != nil || id <= 0 {
+		return 0, strconv.ErrSyntax
+	}
+	return id, nil
+}
+
+func nullableNullInt64(v sql.NullInt64) interface{} {
+	if v.Valid {
+		return v.Int64
+	}
+	return nil
+}
+
+func readAndDecryptFlowBody(body io.ReadCloser, secret string) (string, error) {
+	defer body.Close()
+	raw, err := io.ReadAll(body)
+	if err != nil {
+		return "", err
+	}
+	text := strings.TrimSpace(string(raw))
+	if text == "" {
+		return "", nil
+	}
+
+	var wrap struct {
+		Encrypted bool   `json:"encrypted"`
+		Data      string `json:"data"`
+		Timestamp int64  `json:"timestamp"`
+	}
+	if err := json.Unmarshal(raw, &wrap); err != nil || !wrap.Encrypted || strings.TrimSpace(wrap.Data) == "" {
+		return text, nil
+	}
+
+	crypto, err := security.NewAESCrypto(secret)
+	if err != nil {
+		return text, nil
+	}
+	plain, err := crypto.Decrypt(wrap.Data)
+	if err != nil {
+		return text, nil
+	}
+	return string(plain), nil
+}

go-backend/internal/http/middleware/auth.go

@@ -0,0 +1,117 @@
+package middleware
+
+import (
+	"context"
+	"net/http"
+	"strings"
+
+	"go-backend/internal/auth"
+	"go-backend/internal/http/response"
+)
+
+type contextKey string
+
+const ClaimsContextKey contextKey = "claims"
+
+type AuthOptions struct {
+	JWTSecret string
+}
+
+func JWT(opts AuthOptions) func(http.Handler) http.Handler {
+	return func(next http.Handler) http.Handler {
+		return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+			if shouldSkip(r.URL.Path) {
+				next.ServeHTTP(w, r)
+				return
+			}
+
+			if !strings.HasPrefix(r.URL.Path, "/api/") {
+				next.ServeHTTP(w, r)
+				return
+			}
+
+			token := strings.TrimSpace(r.Header.Get("Authorization"))
+			if token == "" {
+				response.WriteJSON(w, response.Err(401, "未登录或token已过期"))
+				return
+			}
+
+			claims, ok := auth.ValidateToken(token, opts.JWTSecret)
+			if !ok {
+				response.WriteJSON(w, response.Err(401, "无效的token或token已过期"))
+				return
+			}
+
+			if requiresAdmin(r.URL.Path) && claims.RoleID != 0 {
+				response.WriteJSON(w, response.Err(403, "权限不足，仅管理员可操作"))
+				return
+			}
+
+			ctx := context.WithValue(r.Context(), ClaimsContextKey, claims)
+			next.ServeHTTP(w, r.WithContext(ctx))
+		})
+	}
+}
+
+func RequireAdmin(next http.Handler) http.Handler {
+	return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+		raw := r.Context().Value(ClaimsContextKey)
+		claims, ok := raw.(auth.Claims)
+		if !ok {
+			response.WriteJSON(w, response.Err(401, "无法获取用户权限信息"))
+			return
+		}
+		if claims.RoleID != 0 {
+			response.WriteJSON(w, response.Err(403, "权限不足，仅管理员可操作"))
+			return
+		}
+		next.ServeHTTP(w, r)
+	})
+}
+
+func shouldSkip(path string) bool {
+	switch {
+	case strings.HasPrefix(path, "/flow/"):
+		return true
+	case strings.HasPrefix(path, "/api/v1/open_api/"):
+		return true
+	case strings.HasPrefix(path, "/api/v1/captcha/"):
+		return true
+	case path == "/api/v1/config/get":
+		return true
+	case path == "/api/v1/user/login":
+		return true
+	default:
+		return false
+	}
+}
+
+func requiresAdmin(path string) bool {
+	if strings.HasPrefix(path, "/api/v1/group/") {
+		return true
+	}
+
+	if strings.HasPrefix(path, "/api/v1/node/") {
+		return true
+	}
+
+	if strings.HasPrefix(path, "/api/v1/speed-limit/") {
+		return true
+	}
+
+	if strings.HasPrefix(path, "/api/v1/tunnel/") {
+		if strings.HasPrefix(path, "/api/v1/tunnel/user/tunnel") {
+			return false
+		}
+		return true
+	}
+
+	switch path {
+	case "/api/v1/user/create", "/api/v1/user/list", "/api/v1/user/update", "/api/v1/user/delete", "/api/v1/user/reset":
+		return true
+	case "/api/v1/config/update", "/api/v1/config/update-single":
+		return true
+	default:
+		return false
+	}
+}

go-backend/internal/http/middleware/cors.go

@@ -0,0 +1,17 @@
+package middleware
+
+import "net/http"
+
+func CORS(next http.Handler) http.Handler {
+	return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+		w.Header().Set("Access-Control-Allow-Origin", "*")
+		w.Header().Set("Access-Control-Allow-Headers", "*")
+		w.Header().Set("Access-Control-Allow-Methods", "GET, POST, DELETE, PUT, OPTIONS")
+		w.Header().Set("Access-Control-Expose-Headers", "Authorization")
+		if r.Method == http.MethodOptions {
+			w.WriteHeader(http.StatusNoContent)
+			return
+		}
+		next.ServeHTTP(w, r)
+	})
+}

go-backend/internal/http/middleware/recover.go

@@ -0,0 +1,19 @@
+package middleware
+
+import (
+	"fmt"
+	"net/http"
+
+	"go-backend/internal/http/response"
+)
+
+func Recover(next http.Handler) http.Handler {
+	return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+		defer func() {
+			if rec := recover(); rec != nil {
+				response.WriteJSON(w, response.Err(-2, fmt.Sprint(rec)))
+			}
+		}()
+		next.ServeHTTP(w, r)
+	})
+}

go-backend/internal/http/response/r.go

@@ -0,0 +1,48 @@
+package response
+
+import (
+	"encoding/json"
+	"net/http"
+	"time"
+)
+
+type R struct {
+	Code int         `json:"code"`
+	Msg  string      `json:"msg"`
+	TS   int64       `json:"ts"`
+	Data interface{} `json:"data,omitempty"`
+}
+
+func OK(data interface{}) R {
+	return R{
+		Code: 0,
+		Msg:  "操作成功",
+		TS:   time.Now().UnixMilli(),
+		Data: data,
+	}
+}
+
+func OKEmpty() R {
+	return R{
+		Code: 0,
+		Msg:  "操作成功",
+		TS:   time.Now().UnixMilli(),
+	}
+}
+
+func Err(code int, msg string) R {
+	return R{
+		Code: code,
+		Msg:  msg,
+		TS:   time.Now().UnixMilli(),
+	}
+}
+
+func ErrDefault(msg string) R {
+	return Err(-1, msg)
+}
+
+func WriteJSON(w http.ResponseWriter, payload R) {
+	w.Header().Set("Content-Type", "application/json; charset=utf-8")
+	_ = json.NewEncoder(w).Encode(payload)
+}

go-backend/internal/http/router.go

@@ -0,0 +1,19 @@
+package httpserver
+
+import (
+	"net/http"
+
+	"go-backend/internal/http/handler"
+	"go-backend/internal/http/middleware"
+)
+
+func NewRouter(h *handler.Handler, jwtSecret string) http.Handler {
+	mux := http.NewServeMux()
+	h.Register(mux)
+	mux.Handle("/system-info", h.WebSocketHandler())
+
+	wrapped := middleware.Recover(mux)
+	wrapped = middleware.JWT(middleware.AuthOptions{JWTSecret: jwtSecret})(wrapped)
+	wrapped = middleware.CORS(wrapped)
+	return wrapped
+}

go-backend/internal/security/aes.go

@@ -0,0 +1,65 @@
+package security
+
+import (
+	"crypto/aes"
+	"crypto/cipher"
+	"crypto/rand"
+	"crypto/sha256"
+	"encoding/base64"
+	"fmt"
+)
+
+type AESCrypto struct {
+	key []byte
+}
+
+func NewAESCrypto(secret string) (*AESCrypto, error) {
+	if secret == "" {
+		return nil, fmt.Errorf("secret is empty")
+	}
+	hash := sha256.Sum256([]byte(secret))
+	return &AESCrypto{key: hash[:]}, nil
+}
+
+func (a *AESCrypto) Encrypt(plain []byte) (string, error) {
+	if len(plain) == 0 {
+		return "", fmt.Errorf("empty plaintext")
+	}
+	block, err := aes.NewCipher(a.key)
+	if err != nil {
+		return "", err
+	}
+	gcm, err := cipher.NewGCM(block)
+	if err != nil {
+		return "", err
+	}
+	nonce := make([]byte, gcm.NonceSize())
+	if _, err := rand.Read(nonce); err != nil {
+		return "", err
+	}
+	sealed := gcm.Seal(nil, nonce, plain, nil)
+	data := append(nonce, sealed...)
+	return base64.StdEncoding.EncodeToString(data), nil
+}
+
+func (a *AESCrypto) Decrypt(cipherText string) ([]byte, error) {
+	raw, err := base64.StdEncoding.DecodeString(cipherText)
+	if err != nil {
+		return nil, err
+	}
+	block, err := aes.NewCipher(a.key)
+	if err != nil {
+		return nil, err
+	}
+	gcm, err := cipher.NewGCM(block)
+	if err != nil {
+		return nil, err
+	}
+	nonceSize := gcm.NonceSize()
+	if len(raw) < nonceSize {
+		return nil, fmt.Errorf("ciphertext too short")
+	}
+	nonce := raw[:nonceSize]
+	data := raw[nonceSize:]
+	return gcm.Open(nil, nonce, data, nil)
+}

go-backend/internal/security/md5.go

@@ -0,0 +1,11 @@
+package security
+
+import (
+	"crypto/md5"
+	"fmt"
+)
+
+func MD5(input string) string {
+	hash := md5.Sum([]byte(input))
+	return fmt.Sprintf("%x", hash)
+}

go-backend/internal/store/sqlite/repository.go

@@ -0,0 +1,420 @@
+package sqlite
+
+import (
+	"database/sql"
+	"errors"
+	"time"
+
+	_ "modernc.org/sqlite"
+)
+
+type Repository struct {
+	db *sql.DB
+}
+
+type User struct {
+	ID            int64
+	User          string
+	Pwd           string
+	RoleID        int
+	ExpTime       int64
+	Flow          int64
+	InFlow        int64
+	OutFlow       int64
+	FlowResetTime int64
+	Num           int
+	CreatedTime   int64
+	UpdatedTime   sql.NullInt64
+	Status        int
+}
+
+type ViteConfig struct {
+	ID    int64  `json:"id"`
+	Name  string `json:"name"`
+	Value string `json:"value"`
+	Time  int64  `json:"time"`
+}
+
+type UserTunnelDetail struct {
+	ID            int64
+	UserID        int64
+	TunnelID      int64
+	TunnelName    string
+	TunnelFlow    int
+	Flow          int64
+	InFlow        int64
+	OutFlow       int64
+	Num           int
+	FlowResetTime int64
+	ExpTime       int64
+	SpeedID       sql.NullInt64
+	SpeedLimit    sql.NullString
+	Speed         sql.NullInt64
+}
+
+type UserForwardDetail struct {
+	ID         int64
+	Name       string
+	TunnelID   int64
+	TunnelName string
+	InIP       string
+	InPort     sql.NullInt64
+	RemoteAddr string
+	InFlow     int64
+	OutFlow    int64
+	Status     int
+	CreatedAt  int64
+}
+
+type StatisticsFlow struct {
+	ID        int64  `json:"id"`
+	UserID    int64  `json:"userId"`
+	Flow      int64  `json:"flow"`
+	TotalFlow int64  `json:"totalFlow"`
+	Time      string `json:"time"`
+}
+
+type Node struct {
+	ID      int64
+	Secret  string
+	Version sql.NullString
+	HTTP    int
+	TLS     int
+	Socks   int
+	Status  int
+}
+
+func Open(path string) (*Repository, error) {
+	db, err := sql.Open("sqlite", path)
+	if err != nil {
+		return nil, err
+	}
+
+	if err := db.Ping(); err != nil {
+		_ = db.Close()
+		return nil, err
+	}
+
+	return &Repository{db: db}, nil
+}
+
+func (r *Repository) Close() error {
+	if r == nil || r.db == nil {
+		return nil
+	}
+	return r.db.Close()
+}
+
+func (r *Repository) GetUserByUsername(username string) (*User, error) {
+	if r == nil || r.db == nil {
+		return nil, errors.New("repository not initialized")
+	}
+
+	row := r.db.QueryRow(`
+		SELECT id, user, pwd, role_id, exp_time, flow, in_flow, out_flow, flow_reset_time, num, created_time, updated_time, status
+		FROM user WHERE user = ? LIMIT 1
+	`, username)
+	user := &User{}
+	if err := row.Scan(
+		&user.ID, &user.User, &user.Pwd, &user.RoleID, &user.ExpTime,
+		&user.Flow, &user.InFlow, &user.OutFlow, &user.FlowResetTime,
+		&user.Num, &user.CreatedTime, &user.UpdatedTime, &user.Status,
+	); err != nil {
+		if errors.Is(err, sql.ErrNoRows) {
+			return nil, nil
+		}
+		return nil, err
+	}
+	return user, nil
+}
+
+func (r *Repository) GetConfigByName(name string) (*ViteConfig, error) {
+	if r == nil || r.db == nil {
+		return nil, errors.New("repository not initialized")
+	}
+
+	row := r.db.QueryRow(`SELECT id, name, value, time FROM vite_config WHERE name = ? LIMIT 1`, name)
+	cfg := &ViteConfig{}
+	if err := row.Scan(&cfg.ID, &cfg.Name, &cfg.Value, &cfg.Time); err != nil {
+		if errors.Is(err, sql.ErrNoRows) {
+			return nil, nil
+		}
+		return nil, err
+	}
+	return cfg, nil
+}
+
+func (r *Repository) ListConfigs() (map[string]string, error) {
+	if r == nil || r.db == nil {
+		return nil, errors.New("repository not initialized")
+	}
+
+	rows, err := r.db.Query(`SELECT name, value FROM vite_config`)
+	if err != nil {
+		return nil, err
+	}
+	defer rows.Close()
+
+	result := make(map[string]string)
+	for rows.Next() {
+		var name, value string
+		if err := rows.Scan(&name, &value); err != nil {
+			return nil, err
+		}
+		result[name] = value
+	}
+	if err := rows.Err(); err != nil {
+		return nil, err
+	}
+	return result, nil
+}
+
+func (r *Repository) UpsertConfig(name, value string, now int64) error {
+	if r == nil || r.db == nil {
+		return errors.New("repository not initialized")
+	}
+
+	_, err := r.db.Exec(`
+		INSERT INTO vite_config(name, value, time)
+		VALUES(?, ?, ?)
+		ON CONFLICT(name) DO UPDATE SET value=excluded.value, time=excluded.time
+	`, name, value, now)
+	return err
+}
+
+func (r *Repository) GetUserByID(id int64) (*User, error) {
+	if r == nil || r.db == nil {
+		return nil, errors.New("repository not initialized")
+	}
+
+	row := r.db.QueryRow(`
+		SELECT id, user, pwd, role_id, exp_time, flow, in_flow, out_flow, flow_reset_time, num, created_time, updated_time, status
+		FROM user WHERE id = ? LIMIT 1
+	`, id)
+	user := &User{}
+	if err := row.Scan(
+		&user.ID, &user.User, &user.Pwd, &user.RoleID, &user.ExpTime,
+		&user.Flow, &user.InFlow, &user.OutFlow, &user.FlowResetTime,
+		&user.Num, &user.CreatedTime, &user.UpdatedTime, &user.Status,
+	); err != nil {
+		if errors.Is(err, sql.ErrNoRows) {
+			return nil, nil
+		}
+		return nil, err
+	}
+	return user, nil
+}
+
+func (r *Repository) UsernameExistsExceptID(username string, exceptID int64) (bool, error) {
+	if r == nil || r.db == nil {
+		return false, errors.New("repository not initialized")
+	}
+
+	row := r.db.QueryRow(`SELECT COUNT(1) FROM user WHERE user = ? AND id != ?`, username, exceptID)
+	var count int
+	if err := row.Scan(&count); err != nil {
+		return false, err
+	}
+	return count > 0, nil
+}
+
+func (r *Repository) UpdateUserNameAndPassword(userID int64, username, passwordMD5 string, now int64) error {
+	if r == nil || r.db == nil {
+		return errors.New("repository not initialized")
+	}
+	_, err := r.db.Exec(`UPDATE user SET user = ?, pwd = ?, updated_time = ? WHERE id = ?`, username, passwordMD5, now, userID)
+	return err
+}
+
+func (r *Repository) GetUserPackageTunnels(userID int64) ([]UserTunnelDetail, error) {
+	if r == nil || r.db == nil {
+		return nil, errors.New("repository not initialized")
+	}
+
+	rows, err := r.db.Query(`
+		SELECT ut.id, ut.user_id, ut.tunnel_id, t.name, t.flow, ut.flow, ut.in_flow, ut.out_flow,
+		       ut.num, ut.flow_reset_time, ut.exp_time, ut.speed_id, sl.name, sl.speed
+		FROM user_tunnel ut
+		LEFT JOIN tunnel t ON t.id = ut.tunnel_id
+		LEFT JOIN speed_limit sl ON sl.id = ut.speed_id
+		WHERE ut.user_id = ?
+		ORDER BY ut.id ASC
+	`, userID)
+	if err != nil {
+		return nil, err
+	}
+	defer rows.Close()
+
+	items := make([]UserTunnelDetail, 0)
+	for rows.Next() {
+		var item UserTunnelDetail
+		if err := rows.Scan(
+			&item.ID, &item.UserID, &item.TunnelID, &item.TunnelName, &item.TunnelFlow,
+			&item.Flow, &item.InFlow, &item.OutFlow, &item.Num, &item.FlowResetTime,
+			&item.ExpTime, &item.SpeedID, &item.SpeedLimit, &item.Speed,
+		); err != nil {
+			return nil, err
+		}
+		items = append(items, item)
+	}
+
+	if err := rows.Err(); err != nil {
+		return nil, err
+	}
+
+	return items, nil
+}
+
+func (r *Repository) GetUserPackageForwards(userID int64) ([]UserForwardDetail, error) {
+	if r == nil || r.db == nil {
+		return nil, errors.New("repository not initialized")
+	}
+
+	rows, err := r.db.Query(`
+		SELECT f.id, f.name, f.tunnel_id, t.name, f.remote_addr, f.in_flow, f.out_flow, f.status, f.created_time,
+		       GROUP_CONCAT(n.server_ip || ':' || fp.port), MIN(fp.port)
+		FROM forward f
+		LEFT JOIN tunnel t ON t.id = f.tunnel_id
+		LEFT JOIN forward_port fp ON fp.forward_id = f.id
+		LEFT JOIN node n ON n.id = fp.node_id
+		WHERE f.user_id = ?
+		GROUP BY f.id
+		ORDER BY f.id ASC
+	`, userID)
+	if err != nil {
+		return nil, err
+	}
+	defer rows.Close()
+
+	items := make([]UserForwardDetail, 0)
+	for rows.Next() {
+		var item UserForwardDetail
+		if err := rows.Scan(
+			&item.ID, &item.Name, &item.TunnelID, &item.TunnelName, &item.RemoteAddr,
+			&item.InFlow, &item.OutFlow, &item.Status, &item.CreatedAt, &item.InIP, &item.InPort,
+		); err != nil {
+			return nil, err
+		}
+		items = append(items, item)
+	}
+
+	if err := rows.Err(); err != nil {
+		return nil, err
+	}
+
+	return items, nil
+}
+
+func (r *Repository) GetStatisticsFlows(userID int64, limit int) ([]StatisticsFlow, error) {
+	if r == nil || r.db == nil {
+		return nil, errors.New("repository not initialized")
+	}
+
+	rows, err := r.db.Query(`
+		SELECT id, user_id, flow, total_flow, time
+		FROM statistics_flow
+		WHERE user_id = ?
+		ORDER BY id DESC
+		LIMIT ?
+	`, userID, limit)
+	if err != nil {
+		return nil, err
+	}
+	defer rows.Close()
+
+	items := make([]StatisticsFlow, 0)
+	for rows.Next() {
+		var item StatisticsFlow
+		if err := rows.Scan(&item.ID, &item.UserID, &item.Flow, &item.TotalFlow, &item.Time); err != nil {
+			return nil, err
+		}
+		items = append(items, item)
+	}
+
+	if err := rows.Err(); err != nil {
+		return nil, err
+	}
+
+	return items, nil
+}
+
+func (r *Repository) NodeExistsBySecret(secret string) (bool, error) {
+	if r == nil || r.db == nil {
+		return false, errors.New("repository not initialized")
+	}
+
+	row := r.db.QueryRow(`SELECT COUNT(1) FROM node WHERE secret = ?`, secret)
+	var count int
+	if err := row.Scan(&count); err != nil {
+		return false, err
+	}
+	return count > 0, nil
+}
+
+func (r *Repository) GetNodeBySecret(secret string) (*Node, error) {
+	if r == nil || r.db == nil {
+		return nil, errors.New("repository not initialized")
+	}
+
+	row := r.db.QueryRow(`SELECT id, secret, version, http, tls, socks, status FROM node WHERE secret = ? LIMIT 1`, secret)
+	var n Node
+	if err := row.Scan(&n.ID, &n.Secret, &n.Version, &n.HTTP, &n.TLS, &n.Socks, &n.Status); err != nil {
+		if errors.Is(err, sql.ErrNoRows) {
+			return nil, nil
+		}
+		return nil, err
+	}
+	return &n, nil
+}
+
+func (r *Repository) UpdateNodeOnline(nodeID int64, status int, version string, httpVal, tlsVal, socksVal int) error {
+	if r == nil || r.db == nil {
+		return errors.New("repository not initialized")
+	}
+	_, err := r.db.Exec(`UPDATE node SET status = ?, version = ?, http = ?, tls = ?, socks = ?, updated_time = ? WHERE id = ?`,
+		status, version, httpVal, tlsVal, socksVal, unixMilliNow(), nodeID)
+	return err
+}
+
+func (r *Repository) UpdateNodeStatus(nodeID int64, status int) error {
+	if r == nil || r.db == nil {
+		return errors.New("repository not initialized")
+	}
+	_, err := r.db.Exec(`UPDATE node SET status = ?, updated_time = ? WHERE id = ?`, status, unixMilliNow(), nodeID)
+	return err
+}
+
+func (r *Repository) AddFlow(forwardID, userID int64, userTunnelID int64, inFlow, outFlow int64) error {
+	if r == nil || r.db == nil {
+		return errors.New("repository not initialized")
+	}
+
+	tx, err := r.db.Begin()
+	if err != nil {
+		return err
+	}
+	defer func() {
+		if err != nil {
+			_ = tx.Rollback()
+		}
+	}()
+
+	if _, err = tx.Exec(`UPDATE forward SET in_flow = in_flow + ?, out_flow = out_flow + ? WHERE id = ?`, inFlow, outFlow, forwardID); err != nil {
+		return err
+	}
+	if _, err = tx.Exec(`UPDATE user SET in_flow = in_flow + ?, out_flow = out_flow + ? WHERE id = ?`, inFlow, outFlow, userID); err != nil {
+		return err
+	}
+	if userTunnelID > 0 {
+		if _, err = tx.Exec(`UPDATE user_tunnel SET in_flow = in_flow + ?, out_flow = out_flow + ? WHERE id = ?`, inFlow, outFlow, userTunnelID); err != nil {
+			return err
+		}
+	}
+
+	err = tx.Commit()
+	return err
+}
+
+func unixMilliNow() int64 {
+	return time.Now().UnixMilli()
+}

go-backend/internal/ws/server.go

@@ -0,0 +1,228 @@
+package ws
+
+import (
+	"encoding/json"
+	"log"
+	"net/http"
+	"strconv"
+	"strings"
+	"sync"
+
+	"github.com/gorilla/websocket"
+
+	"go-backend/internal/auth"
+	"go-backend/internal/security"
+	"go-backend/internal/store/sqlite"
+)
+
+type encryptedMessage struct {
+	Encrypted bool   `json:"encrypted"`
+	Data      string `json:"data"`
+	Timestamp int64  `json:"timestamp"`
+}
+
+type broadcastMessage struct {
+	ID   int64  `json:"id"`
+	Type string `json:"type"`
+	Data string `json:"data"`
+}
+
+type connWrap struct {
+	conn *websocket.Conn
+	mu   sync.Mutex
+}
+
+type nodeSession struct {
+	nodeID int64
+	secret string
+	conn   *connWrap
+}
+
+type Server struct {
+	repo      *sqlite.Repository
+	jwtSecret string
+	upgrader  websocket.Upgrader
+
+	mu     sync.RWMutex
+	admins map[*connWrap]struct{}
+	nodes  map[int64]*nodeSession
+	byConn map[*websocket.Conn]*nodeSession
+}
+
+func NewServer(repo *sqlite.Repository, jwtSecret string) *Server {
+	return &Server{
+		repo:      repo,
+		jwtSecret: jwtSecret,
+		upgrader: websocket.Upgrader{
+			CheckOrigin: func(r *http.Request) bool { return true },
+		},
+		admins: make(map[*connWrap]struct{}),
+		nodes:  make(map[int64]*nodeSession),
+		byConn: make(map[*websocket.Conn]*nodeSession),
+	}
+}
+
+func (s *Server) ServeHTTP(w http.ResponseWriter, r *http.Request) {
+	query := r.URL.Query()
+	typeVal := query.Get("type")
+	secret := query.Get("secret")
+
+	if typeVal == "1" {
+		node, err := s.repo.GetNodeBySecret(secret)
+		if err != nil || node == nil {
+			http.Error(w, "forbidden", http.StatusForbidden)
+			return
+		}
+		s.handleNode(w, r, node.ID, secret)
+		return
+	}
+
+	if typeVal == "0" {
+		if _, ok := auth.ValidateToken(secret, s.jwtSecret); !ok {
+			http.Error(w, "forbidden", http.StatusForbidden)
+			return
+		}
+		s.handleAdmin(w, r)
+		return
+	}
+
+	http.Error(w, "bad request", http.StatusBadRequest)
+}
+
+func (s *Server) handleAdmin(w http.ResponseWriter, r *http.Request) {
+	conn, err := s.upgrader.Upgrade(w, r, nil)
+	if err != nil {
+		return
+	}
+	cw := &connWrap{conn: conn}
+
+	s.mu.Lock()
+	s.admins[cw] = struct{}{}
+	s.mu.Unlock()
+
+	defer func() {
+		s.mu.Lock()
+		delete(s.admins, cw)
+		s.mu.Unlock()
+		_ = conn.Close()
+	}()
+
+	for {
+		if _, _, err := conn.ReadMessage(); err != nil {
+			return
+		}
+	}
+}
+
+func (s *Server) handleNode(w http.ResponseWriter, r *http.Request, nodeID int64, secret string) {
+	conn, err := s.upgrader.Upgrade(w, r, nil)
+	if err != nil {
+		return
+	}
+	cw := &connWrap{conn: conn}
+
+	version := r.URL.Query().Get("version")
+	httpVal := parseIntDefault(r.URL.Query().Get("http"), 0)
+	tlsVal := parseIntDefault(r.URL.Query().Get("tls"), 0)
+	socksVal := parseIntDefault(r.URL.Query().Get("socks"), 0)
+
+	s.mu.Lock()
+	if old, ok := s.nodes[nodeID]; ok {
+		_ = old.conn.conn.Close()
+		delete(s.byConn, old.conn.conn)
+	}
+	ns := &nodeSession{nodeID: nodeID, secret: secret, conn: cw}
+	s.nodes[nodeID] = ns
+	s.byConn[conn] = ns
+	s.mu.Unlock()
+
+	_ = s.repo.UpdateNodeOnline(nodeID, 1, version, httpVal, tlsVal, socksVal)
+	s.broadcastStatus(nodeID, 1)
+
+	defer func() {
+		needOfflineBroadcast := false
+		s.mu.Lock()
+		current, ok := s.nodes[nodeID]
+		if ok && current.conn.conn == conn {
+			delete(s.nodes, nodeID)
+			needOfflineBroadcast = true
+		}
+		delete(s.byConn, conn)
+		s.mu.Unlock()
+		if needOfflineBroadcast {
+			_ = s.repo.UpdateNodeStatus(nodeID, 0)
+			s.broadcastStatus(nodeID, 0)
+		}
+		_ = conn.Close()
+	}()
+
+	for {
+		_, payload, err := conn.ReadMessage()
+		if err != nil {
+			return
+		}
+
+		msg := decryptIfNeeded(payload, secret)
+		s.broadcastInfo(nodeID, msg)
+	}
+}
+
+func (s *Server) broadcastStatus(nodeID int64, status int) {
+	payload := map[string]interface{}{
+		"id":   strconv.FormatInt(nodeID, 10),
+		"type": "status",
+		"data": status,
+	}
+	raw, _ := json.Marshal(payload)
+	s.broadcastToAdmins(string(raw))
+}
+
+func (s *Server) broadcastInfo(nodeID int64, data string) {
+	payload := broadcastMessage{ID: nodeID, Type: "info", Data: data}
+	raw, _ := json.Marshal(payload)
+	s.broadcastToAdmins(string(raw))
+}
+
+func (s *Server) broadcastToAdmins(message string) {
+	s.mu.RLock()
+	admins := make([]*connWrap, 0, len(s.admins))
+	for c := range s.admins {
+		admins = append(admins, c)
+	}
+	s.mu.RUnlock()
+
+	for _, c := range admins {
+		c.mu.Lock()
+		err := c.conn.WriteMessage(websocket.TextMessage, []byte(message))
+		c.mu.Unlock()
+		if err != nil {
+			log.Printf("websocket broadcast failed: %v", err)
+		}
+	}
+}
+
+func decryptIfNeeded(payload []byte, secret string) string {
+	text := string(payload)
+	var wrap encryptedMessage
+	if err := json.Unmarshal(payload, &wrap); err != nil || !wrap.Encrypted || strings.TrimSpace(wrap.Data) == "" {
+		return text
+	}
+
+	crypto, err := security.NewAESCrypto(secret)
+	if err != nil {
+		return text
+	}
+	plain, err := crypto.Decrypt(wrap.Data)
+	if err != nil {
+		return text
+	}
+	return string(plain)
+}
+
+func parseIntDefault(v string, fallback int) int {
+	x, err := strconv.Atoi(v)
+	if err != nil {
+		return fallback
+	}
+	return x
+}

go-backend/tests/contract/auth_contract_test.go

@@ -0,0 +1,90 @@
+package contract_test
+
+import (
+	"encoding/json"
+	"net/http"
+	"net/http/httptest"
+	"testing"
+
+	"go-backend/internal/auth"
+	"go-backend/internal/http/middleware"
+	"go-backend/internal/http/response"
+)
+
+func TestJWTMiddlewareContracts(t *testing.T) {
+	secret := "unit-test-secret"
+
+	next := http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+		response.WriteJSON(w, response.OK("pass"))
+	})
+
+	wrapped := middleware.JWT(middleware.AuthOptions{JWTSecret: secret})(next)
+
+	t.Run("login path is excluded", func(t *testing.T) {
+		req := httptest.NewRequest(http.MethodPost, "/api/v1/user/login", nil)
+		res := httptest.NewRecorder()
+		wrapped.ServeHTTP(res, req)
+		assertCode(t, res, 0)
+	})
+
+	t.Run("missing token returns 401 contract message", func(t *testing.T) {
+		req := httptest.NewRequest(http.MethodPost, "/api/v1/tunnel/list", nil)
+		res := httptest.NewRecorder()
+		wrapped.ServeHTTP(res, req)
+		assertCodeMsg(t, res, 401, "未登录或token已过期")
+	})
+
+	t.Run("invalid token returns 401 contract message", func(t *testing.T) {
+		req := httptest.NewRequest(http.MethodPost, "/api/v1/tunnel/list", nil)
+		req.Header.Set("Authorization", "invalid.token.value")
+		res := httptest.NewRecorder()
+		wrapped.ServeHTTP(res, req)
+		assertCodeMsg(t, res, 401, "无效的token或token已过期")
+	})
+
+	t.Run("valid token reaches next", func(t *testing.T) {
+		token, err := auth.GenerateToken(1, "admin_user", 0, secret)
+		if err != nil {
+			t.Fatalf("generate token: %v", err)
+		}
+		req := httptest.NewRequest(http.MethodPost, "/api/v1/tunnel/list", nil)
+		req.Header.Set("Authorization", token)
+		res := httptest.NewRecorder()
+		wrapped.ServeHTTP(res, req)
+		assertCode(t, res, 0)
+	})
+
+	t.Run("non-admin blocked on admin path", func(t *testing.T) {
+		token, err := auth.GenerateToken(2, "normal_user", 1, secret)
+		if err != nil {
+			t.Fatalf("generate token: %v", err)
+		}
+		req := httptest.NewRequest(http.MethodPost, "/api/v1/config/update", nil)
+		req.Header.Set("Authorization", token)
+		res := httptest.NewRecorder()
+		wrapped.ServeHTTP(res, req)
+		assertCodeMsg(t, res, 403, "权限不足，仅管理员可操作")
+	})
+}
+
+func assertCode(t *testing.T, rec *httptest.ResponseRecorder, expected int) {
+	t.Helper()
+	var out response.R
+	if err := json.NewDecoder(rec.Body).Decode(&out); err != nil {
+		t.Fatalf("decode response: %v", err)
+	}
+	if out.Code != expected {
+		t.Fatalf("expected code %d, got %d", expected, out.Code)
+	}
+}
+
+func assertCodeMsg(t *testing.T, rec *httptest.ResponseRecorder, expectedCode int, expectedMsg string) {
+	t.Helper()
+	var out response.R
+	if err := json.NewDecoder(rec.Body).Decode(&out); err != nil {
+		t.Fatalf("decode response: %v", err)
+	}
+	if out.Code != expectedCode || out.Msg != expectedMsg {
+		t.Fatalf("expected (%d,%q), got (%d,%q)", expectedCode, expectedMsg, out.Code, out.Msg)
+	}
+}

go-backend/tests/contract/flow_contract_test.go

@@ -0,0 +1,44 @@
+package contract_test
+
+import (
+	"io"
+	"net/http"
+	"net/http/httptest"
+	"testing"
+
+	"go-backend/internal/http/handler"
+)
+
+func TestFlowEndpointsStringResponses(t *testing.T) {
+	h := handler.New(nil, "secret")
+	mux := http.NewServeMux()
+	h.Register(mux)
+
+	tests := []struct {
+		name     string
+		method   string
+		path     string
+		expected string
+	}{
+		{name: "flow test", method: http.MethodGet, path: "/flow/test", expected: "test"},
+		{name: "flow config", method: http.MethodPost, path: "/flow/config?secret=abc", expected: "ok"},
+		{name: "flow upload", method: http.MethodPost, path: "/flow/upload?secret=abc", expected: "ok"},
+	}
+
+	for _, tc := range tests {
+		t.Run(tc.name, func(t *testing.T) {
+			req := httptest.NewRequest(tc.method, tc.path, nil)
+			res := httptest.NewRecorder()
+			mux.ServeHTTP(res, req)
+
+			body, err := io.ReadAll(res.Body)
+			if err != nil {
+				t.Fatalf("read body: %v", err)
+			}
+
+			if string(body) != tc.expected {
+				t.Fatalf("expected %q, got %q", tc.expected, string(body))
+			}
+		})
+	}
+}