// Copyright 2014 The Gogs Authors. All rights reserved. // SPDX-License-Identifier: MIT package cmd import ( "context" "fmt" "net" "net/http" "os" "path/filepath" "strconv" "strings" _ "net/http/pprof" // Used for debugging if enabled and a web server is running "code.gitea.io/gitea/modules/graceful" "code.gitea.io/gitea/modules/log" "code.gitea.io/gitea/modules/process" "code.gitea.io/gitea/modules/setting" "code.gitea.io/gitea/routers" "code.gitea.io/gitea/routers/install" "github.com/felixge/fgprof" "github.com/urfave/cli" ) // PIDFile could be set from build tag var PIDFile = "/run/gitea.pid" // CmdWeb represents the available web sub-command. var CmdWeb = cli.Command{ Name: "web", Usage: "Start Gitea web server", Description: `Gitea web server is the only thing you need to run, and it takes care of all the other things for you`, Action: runWeb, Flags: []cli.Flag{ cli.StringFlag{ Name: "port, p", Value: "3000", Usage: "Temporary port number to prevent conflict", }, cli.StringFlag{ Name: "install-port", Value: "3000", Usage: "Temporary port number to run the install page on to prevent conflict", }, cli.StringFlag{ Name: "pid, P", Value: PIDFile, Usage: "Custom pid file path", }, cli.BoolFlag{ Name: "quiet, q", Usage: "Only display Fatal logging errors until logging is set-up", }, cli.BoolFlag{ Name: "verbose", Usage: "Set initial logging to TRACE level until logging is properly set-up", }, }, } func runHTTPRedirector() { _, _, finished := process.GetManager().AddTypedContext(graceful.GetManager().HammerContext(), "Web: HTTP Redirector", process.SystemProcessType, true) defer finished() source := fmt.Sprintf("%s:%s", setting.HTTPAddr, setting.PortToRedirect) dest := strings.TrimSuffix(setting.AppURL, "/") log.Info("Redirecting: %s to %s", source, dest) handler := http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) { target := dest + r.URL.Path if len(r.URL.RawQuery) > 0 { target += "?" + r.URL.RawQuery } http.Redirect(w, r, target, http.StatusTemporaryRedirect) }) err := runHTTP("tcp", source, "HTTP Redirector", handler, setting.RedirectorUseProxyProtocol) if err != nil { log.Fatal("Failed to start port redirection: %v", err) } } func createPIDFile(pidPath string) { currentPid := os.Getpid() if err := os.MkdirAll(filepath.Dir(pidPath), os.ModePerm); err != nil { log.Fatal("Failed to create PID folder: %v", err) } file, err := os.Create(pidPath) if err != nil { log.Fatal("Failed to create PID file: %v", err) } defer file.Close() if _, err := file.WriteString(strconv.FormatInt(int64(currentPid), 10)); err != nil { log.Fatal("Failed to write PID information: %v", err) } } func serveInstall(ctx *cli.Context) error { log.Info("Gitea version: %s%s", setting.AppVer, setting.AppBuiltWith) log.Info("App path: %s", setting.AppPath) log.Info("Work path: %s", setting.AppWorkPath) log.Info("Custom path: %s", setting.CustomPath) log.Info("Config file: %s", setting.CustomConf) log.Info("Prepare to run install page") routers.InitWebInstallPage(graceful.GetManager().HammerContext()) // Flag for port number in case first time run conflict if ctx.IsSet("port") { if err := setPort(ctx.String("port")); err != nil { return err } } if ctx.IsSet("install-port") { if err := setPort(ctx.String("install-port")); err != nil { return err } } c := install.Routes() err := listen(c, false) if err != nil { log.Critical("Unable to open listener for installer. Is Gitea already running?") graceful.GetManager().DoGracefulShutdown() } select { case <-graceful.GetManager().IsShutdown(): <-graceful.GetManager().Done() log.Info("PID: %d Gitea Web Finished", os.Getpid()) log.GetManager().Close() return err default: } return nil } func serveInstalled(ctx *cli.Context) error { setting.InitCfgProvider(setting.CustomConf) setting.LoadCommonSettings() setting.MustInstalled() log.Info("Gitea version: %s%s", setting.AppVer, setting.AppBuiltWith) log.Info("App path: %s", setting.AppPath) log.Info("Work path: %s", setting.AppWorkPath) log.Info("Custom path: %s", setting.CustomPath) log.Info("Config file: %s", setting.CustomConf) log.Info("Run mode: %s", setting.RunMode) log.Info("Prepare to run web server") if setting.AppWorkPathMismatch { log.Error("WORK_PATH from config %q doesn't match other paths from environment variables or command arguments. "+ "Only WORK_PATH in config should be set and used. Please remove the other outdated work paths from environment variables and command arguments", setting.CustomConf) } rootCfg := setting.CfgProvider if rootCfg.Section("").Key("WORK_PATH").String() == "" { saveCfg, err := rootCfg.PrepareSaving() if err != nil { log.Error("Unable to prepare saving WORK_PATH=%s to config %q: %v\nYou must set it manually, otherwise there might be bugs when accessing the git repositories.", setting.AppWorkPath, setting.CustomConf, err) } else { rootCfg.Section("").Key("WORK_PATH").SetValue(setting.AppWorkPath) saveCfg.Section("").Key("WORK_PATH").SetValue(setting.AppWorkPath) if err = saveCfg.Save(); err != nil { log.Error("Unable to update WORK_PATH=%s to config %q: %v\nYou must set it manually, otherwise there might be bugs when accessing the git repositories.", setting.AppWorkPath, setting.CustomConf, err) } } } routers.InitWebInstalled(graceful.GetManager().HammerContext()) // We check that AppDataPath exists here (it should have been created during installation) // We can't check it in `InitWebInstalled`, because some integration tests // use cmd -> InitWebInstalled, but the AppDataPath doesn't exist during those tests. if _, err := os.Stat(setting.AppDataPath); err != nil { log.Fatal("Can not find APP_DATA_PATH %q", setting.AppDataPath) } // Override the provided port number within the configuration if ctx.IsSet("port") { if err := setPort(ctx.String("port")); err != nil { return err } } // Set up Chi routes c := routers.NormalRoutes(graceful.GetManager().HammerContext()) err := listen(c, true) <-graceful.GetManager().Done() log.Info("PID: %d Gitea Web Finished", os.Getpid()) log.GetManager().Close() return err } func servePprof() { http.DefaultServeMux.Handle("/debug/fgprof", fgprof.Handler()) _, _, finished := process.GetManager().AddTypedContext(context.Background(), "Web: PProf Server", process.SystemProcessType, true) // The pprof server is for debug purpose only, it shouldn't be exposed on public network. At the moment it's not worth to introduce a configurable option for it. log.Info("Starting pprof server on localhost:6060") log.Info("Stopped pprof server: %v", http.ListenAndServe("localhost:6060", nil)) finished() } func runWeb(ctx *cli.Context) error { if ctx.Bool("verbose") { setupConsoleLogger(log.TRACE, log.CanColorStdout, os.Stdout) } else if ctx.Bool("quiet") { setupConsoleLogger(log.FATAL, log.CanColorStdout, os.Stdout) } defer func() { if panicked := recover(); panicked != nil { log.Fatal("PANIC: %v\n%s", panicked, log.Stack(2)) } }() managerCtx, cancel := context.WithCancel(context.Background()) graceful.InitManager(managerCtx) defer cancel() if os.Getppid() > 1 && len(os.Getenv("LISTEN_FDS")) > 0 { log.Info("Restarting Gitea on PID: %d from parent PID: %d", os.Getpid(), os.Getppid()) } else { log.Info("Starting Gitea on PID: %d", os.Getpid()) } // Set pid file setting if ctx.IsSet("pid") { createPIDFile(ctx.String("pid")) } if !setting.InstallLock { if err := serveInstall(ctx); err != nil { return err } } else { NoInstallListener() } if setting.EnablePprof { go servePprof() } return serveInstalled(ctx) } func setPort(port string) error { setting.AppURL = strings.Replace(setting.AppURL, setting.HTTPPort, port, 1) setting.HTTPPort = port switch setting.Protocol { case setting.HTTPUnix: case setting.FCGI: case setting.FCGIUnix: default: defaultLocalURL := string(setting.Protocol) + "://" if setting.HTTPAddr == "0.0.0.0" { defaultLocalURL += "localhost" } else { defaultLocalURL += setting.HTTPAddr } defaultLocalURL += ":" + setting.HTTPPort + "/" // Save LOCAL_ROOT_URL if port changed rootCfg := setting.CfgProvider saveCfg, err := rootCfg.PrepareSaving() if err != nil { return fmt.Errorf("failed to save config file: %v", err) } rootCfg.Section("server").Key("LOCAL_ROOT_URL").SetValue(defaultLocalURL) saveCfg.Section("server").Key("LOCAL_ROOT_URL").SetValue(defaultLocalURL) if err = saveCfg.Save(); err != nil { return fmt.Errorf("failed to save config file: %v", err) } } return nil } func listen(m http.Handler, handleRedirector bool) error { listenAddr := setting.HTTPAddr if setting.Protocol != setting.HTTPUnix && setting.Protocol != setting.FCGIUnix { listenAddr = net.JoinHostPort(listenAddr, setting.HTTPPort) } _, _, finished := process.GetManager().AddTypedContext(graceful.GetManager().HammerContext(), "Web: Gitea Server", process.SystemProcessType, true) defer finished() log.Info("Listen: %v://%s%s", setting.Protocol, listenAddr, setting.AppSubURL) // This can be useful for users, many users do wrong to their config and get strange behaviors behind a reverse-proxy. // A user may fix the configuration mistake when he sees this log. // And this is also very helpful to maintainers to provide help to users to resolve their configuration problems. log.Info("AppURL(ROOT_URL): %s", setting.AppURL) if setting.LFS.StartServer { log.Info("LFS server enabled") } var err error switch setting.Protocol { case setting.HTTP: if handleRedirector { NoHTTPRedirector() } err = runHTTP("tcp", listenAddr, "Web", m, setting.UseProxyProtocol) case setting.HTTPS: if setting.EnableAcme { err = runACME(listenAddr, m) break } if handleRedirector { if setting.RedirectOtherPort { go runHTTPRedirector() } else { NoHTTPRedirector() } } err = runHTTPS("tcp", listenAddr, "Web", setting.CertFile, setting.KeyFile, m, setting.UseProxyProtocol, setting.ProxyProtocolTLSBridging) case setting.FCGI: if handleRedirector { NoHTTPRedirector() } err = runFCGI("tcp", listenAddr, "FCGI Web", m, setting.UseProxyProtocol) case setting.HTTPUnix: if handleRedirector { NoHTTPRedirector() } err = runHTTP("unix", listenAddr, "Web", m, setting.UseProxyProtocol) case setting.FCGIUnix: if handleRedirector { NoHTTPRedirector() } err = runFCGI("unix", listenAddr, "Web", m, setting.UseProxyProtocol) default: log.Fatal("Invalid protocol: %s", setting.Protocol) } if err != nil { log.Critical("Failed to start server: %v", err) } log.Info("HTTP Listener: %s Closed", listenAddr) return err }