Adding upstream version 9.0.3.

Signed-off-by: Daniel Baumann <daniel@debian.org>

1 files changed, 357 insertions, 0 deletions

diff --git a/cmd/web.go b/cmd/web.go
new file mode 100644
index 0000000..44babd5
--- /dev/null
+++ b/cmd/web.go
@@ -0,0 +1,357 @@
+// 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/container"
+	"code.gitea.io/gitea/modules/graceful"
+	"code.gitea.io/gitea/modules/log"
+	"code.gitea.io/gitea/modules/process"
+	"code.gitea.io/gitea/modules/public"
+	"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/v2"
+)
+
+// 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 the Forgejo web server",
+	Description: `The Forgejo web server is the only thing you need to run,
+and it takes care of all the other things for you`,
+	Before: PrepareConsoleLoggerLevel(log.INFO),
+	Action: runWeb,
+	Flags: []cli.Flag{
+		&cli.StringFlag{
+			Name:    "port",
+			Aliases: []string{"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",
+			Aliases: []string{"P"},
+			Value:   PIDFile,
+			Usage:   "Custom pid file path",
+		},
+		&cli.BoolFlag{
+			Name:    "quiet",
+			Aliases: []string{"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 showWebStartupMessage(msg string) {
+	log.Info("Forgejo version: %s%s", setting.AppVer, setting.AppBuiltWith)
+	log.Info("* RunMode: %s", setting.RunMode)
+	log.Info("* AppPath: %s", setting.AppPath)
+	log.Info("* WorkPath: %s", setting.AppWorkPath)
+	log.Info("* CustomPath: %s", setting.CustomPath)
+	log.Info("* ConfigFile: %s", setting.CustomConf)
+	log.Info("%s", msg) // show startup message
+}
+
+func serveInstall(ctx *cli.Context) error {
+	showWebStartupMessage("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 Forgejo already running?")
+		graceful.GetManager().DoGracefulShutdown()
+	}
+	select {
+	case <-graceful.GetManager().IsShutdown():
+		<-graceful.GetManager().Done()
+		log.Info("PID: %d Forgejo 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()
+
+	showWebStartupMessage("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 make sure the path in config file is correct, "+
+			"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 should 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 should set it manually, otherwise there might be bugs when accessing the git repositories.", setting.AppWorkPath, setting.CustomConf, err)
+			}
+		}
+	}
+
+	// in old versions, user's custom web files are placed in "custom/public", and they were served as "http://domain.com/assets/xxx"
+	// now, Gitea only serves pre-defined files in the "custom/public" folder basing on the web root, the user should move their custom files to "custom/public/assets"
+	publicFiles, _ := public.AssetFS().ListFiles(".")
+	publicFilesSet := container.SetOf(publicFiles...)
+	publicFilesSet.Remove(".well-known")
+	publicFilesSet.Remove("assets")
+	publicFilesSet.Remove("robots.txt")
+	for _, fn := range publicFilesSet.Values() {
+		log.Error("Found legacy public asset %q in CustomPath. Please move it to %s/public/assets/%s", fn, setting.CustomPath, fn)
+	}
+	if _, err := os.Stat(filepath.Join(setting.CustomPath, "robots.txt")); err == nil {
+		log.Error(`Found legacy public asset "robots.txt" in CustomPath. Please move it to %s/public/robots.txt`, setting.CustomPath)
+	}
+
+	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
+	webRoutes := routers.NormalRoutes()
+	err := listen(webRoutes, true)
+	<-graceful.GetManager().Done()
+	log.Info("PID: %d Forgejo 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 {
+	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 Forgejo on PID: %d from parent PID: %d", os.Getpid(), os.Getppid())
+	} else {
+		log.Info("Starting Forgejo 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: Forgejo 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
+}