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web.go
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package web
import (
"context"
"crypto/tls"
"embed"
"html/template"
"io"
"io/fs"
"net"
"net/http"
"os"
"strconv"
"strings"
"time"
"x-ui/config"
"x-ui/logger"
"x-ui/util/common"
"x-ui/web/controller"
"x-ui/web/job"
"x-ui/web/locale"
"x-ui/web/middleware"
"x-ui/web/network"
"x-ui/web/service"
"github.com/gin-contrib/gzip"
"github.com/gin-contrib/sessions"
"github.com/gin-contrib/sessions/cookie"
"github.com/gin-gonic/gin"
"github.com/robfig/cron/v3"
)
//go:embed assets/*
var assetsFS embed.FS
//go:embed html/*
var htmlFS embed.FS
//go:embed translation/*
var i18nFS embed.FS
var startTime = time.Now()
type wrapAssetsFS struct {
embed.FS
}
func (f *wrapAssetsFS) Open(name string) (fs.File, error) {
file, err := f.FS.Open("assets/" + name)
if err != nil {
return nil, err
}
return &wrapAssetsFile{
File: file,
}, nil
}
type wrapAssetsFile struct {
fs.File
}
func (f *wrapAssetsFile) Stat() (fs.FileInfo, error) {
info, err := f.File.Stat()
if err != nil {
return nil, err
}
return &wrapAssetsFileInfo{
FileInfo: info,
}, nil
}
type wrapAssetsFileInfo struct {
fs.FileInfo
}
func (f *wrapAssetsFileInfo) ModTime() time.Time {
return startTime
}
type Server struct {
httpServer *http.Server
listener net.Listener
index *controller.IndexController
server *controller.ServerController
panel *controller.XUIController
api *controller.APIController
xrayService service.XrayService
settingService service.SettingService
tgbotService service.Tgbot
cron *cron.Cron
ctx context.Context
cancel context.CancelFunc
}
func NewServer() *Server {
ctx, cancel := context.WithCancel(context.Background())
return &Server{
ctx: ctx,
cancel: cancel,
}
}
func (s *Server) getHtmlFiles() ([]string, error) {
files := make([]string, 0)
dir, _ := os.Getwd()
err := fs.WalkDir(os.DirFS(dir), "web/html", func(path string, d fs.DirEntry, err error) error {
if err != nil {
return err
}
if d.IsDir() {
return nil
}
files = append(files, path)
return nil
})
if err != nil {
return nil, err
}
return files, nil
}
func (s *Server) getHtmlTemplate(funcMap template.FuncMap) (*template.Template, error) {
t := template.New("").Funcs(funcMap)
err := fs.WalkDir(htmlFS, "html", func(path string, d fs.DirEntry, err error) error {
if err != nil {
return err
}
if d.IsDir() {
newT, err := t.ParseFS(htmlFS, path+"/*.html")
if err != nil {
// ignore
return nil
}
t = newT
}
return nil
})
if err != nil {
return nil, err
}
return t, nil
}
func (s *Server) initRouter() (*gin.Engine, error) {
if config.IsDebug() {
gin.SetMode(gin.DebugMode)
} else {
gin.DefaultWriter = io.Discard
gin.DefaultErrorWriter = io.Discard
gin.SetMode(gin.ReleaseMode)
}
engine := gin.Default()
webDomain, err := s.settingService.GetWebDomain()
if err != nil {
return nil, err
}
if webDomain != "" {
engine.Use(middleware.DomainValidatorMiddleware(webDomain))
}
secret, err := s.settingService.GetSecret()
if err != nil {
return nil, err
}
basePath, err := s.settingService.GetBasePath()
if err != nil {
return nil, err
}
engine.Use(gzip.Gzip(gzip.DefaultCompression, gzip.WithExcludedPaths([]string{basePath + "panel/API/"})))
assetsBasePath := basePath + "assets/"
store := cookie.NewStore(secret)
engine.Use(sessions.Sessions("session", store))
engine.Use(func(c *gin.Context) {
c.Set("base_path", basePath)
})
engine.Use(func(c *gin.Context) {
uri := c.Request.RequestURI
if strings.HasPrefix(uri, assetsBasePath) {
c.Header("Cache-Control", "max-age=31536000")
}
})
// init i18n
err = locale.InitLocalizer(i18nFS, &s.settingService)
if err != nil {
return nil, err
}
// Apply locale middleware for i18n
i18nWebFunc := func(key string, params ...string) string {
return locale.I18n(locale.Web, key, params...)
}
engine.FuncMap["i18n"] = i18nWebFunc
engine.Use(locale.LocalizerMiddleware())
// set static files and template
if config.IsDebug() {
// for development
files, err := s.getHtmlFiles()
if err != nil {
return nil, err
}
engine.LoadHTMLFiles(files...)
engine.StaticFS(basePath+"assets", http.FS(os.DirFS("web/assets")))
} else {
// for production
template, err := s.getHtmlTemplate(engine.FuncMap)
if err != nil {
return nil, err
}
engine.SetHTMLTemplate(template)
engine.StaticFS(basePath+"assets", http.FS(&wrapAssetsFS{FS: assetsFS}))
}
// Apply the redirect middleware (`/xui` to `/panel`)
engine.Use(middleware.RedirectMiddleware(basePath))
g := engine.Group(basePath)
s.index = controller.NewIndexController(g)
s.server = controller.NewServerController(g)
s.panel = controller.NewXUIController(g)
s.api = controller.NewAPIController(g)
return engine, nil
}
func (s *Server) startTask() {
err := s.xrayService.RestartXray(true)
if err != nil {
logger.Warning("start xray failed:", err)
}
// Check whether xray is running every second
s.cron.AddJob("@every 1s", job.NewCheckXrayRunningJob())
// Check if xray needs to be restarted every 30 seconds
s.cron.AddFunc("@every 30s", func() {
if s.xrayService.IsNeedRestartAndSetFalse() {
err := s.xrayService.RestartXray(false)
if err != nil {
logger.Error("restart xray failed:", err)
}
}
})
go func() {
time.Sleep(time.Second * 5)
// Statistics every 10 seconds, start the delay for 5 seconds for the first time, and staggered with the time to restart xray
s.cron.AddJob("@every 10s", job.NewXrayTrafficJob())
}()
// check client ips from log file every 10 sec
s.cron.AddJob("@every 10s", job.NewCheckClientIpJob())
// check client ips from log file every day
s.cron.AddJob("@daily", job.NewClearLogsJob())
// Make a traffic condition every day, 8:30
var entry cron.EntryID
isTgbotenabled, err := s.settingService.GetTgbotenabled()
if (err == nil) && (isTgbotenabled) {
runtime, err := s.settingService.GetTgbotRuntime()
if err != nil || runtime == "" {
logger.Errorf("Add NewStatsNotifyJob error[%s], Runtime[%s] invalid, will run default", err, runtime)
runtime = "@daily"
}
logger.Infof("Tg notify enabled,run at %s", runtime)
_, err = s.cron.AddJob(runtime, job.NewStatsNotifyJob())
if err != nil {
logger.Warning("Add NewStatsNotifyJob error", err)
return
}
// check for Telegram bot callback query hash storage reset
s.cron.AddJob("@every 2m", job.NewCheckHashStorageJob())
// Check CPU load and alarm to TgBot if threshold passes
cpuThreshold, err := s.settingService.GetTgCpu()
if (err == nil) && (cpuThreshold > 0) {
s.cron.AddJob("@every 10s", job.NewCheckCpuJob())
}
} else {
s.cron.Remove(entry)
}
}
func (s *Server) Start() (err error) {
// This is an anonymous function, no function name
defer func() {
if err != nil {
s.Stop()
}
}()
loc, err := s.settingService.GetTimeLocation()
if err != nil {
return err
}
s.cron = cron.New(cron.WithLocation(loc), cron.WithSeconds())
s.cron.Start()
engine, err := s.initRouter()
if err != nil {
return err
}
certFile, err := s.settingService.GetCertFile()
if err != nil {
return err
}
keyFile, err := s.settingService.GetKeyFile()
if err != nil {
return err
}
listen, err := s.settingService.GetListen()
if err != nil {
return err
}
port, err := s.settingService.GetPort()
if err != nil {
return err
}
listenAddr := net.JoinHostPort(listen, strconv.Itoa(port))
listener, err := net.Listen("tcp", listenAddr)
if err != nil {
return err
}
if certFile != "" || keyFile != "" {
cert, err := tls.LoadX509KeyPair(certFile, keyFile)
if err == nil {
c := &tls.Config{
Certificates: []tls.Certificate{cert},
}
listener = network.NewAutoHttpsListener(listener)
listener = tls.NewListener(listener, c)
logger.Info("web server run https on", listener.Addr())
} else {
logger.Error("error in loading certificates: ", err)
logger.Info("web server run http on", listener.Addr())
}
} else {
logger.Info("web server run http on", listener.Addr())
}
s.listener = listener
s.httpServer = &http.Server{
Handler: engine,
}
go func() {
s.httpServer.Serve(listener)
}()
s.startTask()
isTgbotenabled, err := s.settingService.GetTgbotenabled()
if (err == nil) && (isTgbotenabled) {
tgBot := s.tgbotService.NewTgbot()
tgBot.Start(i18nFS)
}
return nil
}
func (s *Server) Stop() error {
s.cancel()
s.xrayService.StopXray()
if s.cron != nil {
s.cron.Stop()
}
if s.tgbotService.IsRunning() {
s.tgbotService.Stop()
}
var err1 error
var err2 error
if s.httpServer != nil {
err1 = s.httpServer.Shutdown(s.ctx)
}
if s.listener != nil {
err2 = s.listener.Close()
}
return common.Combine(err1, err2)
}
func (s *Server) GetCtx() context.Context {
return s.ctx
}
func (s *Server) GetCron() *cron.Cron {
return s.cron
}