package main import ( "context" "crypto/rand" "encoding/base64" "encoding/json" "fmt" "io/fs" "log" "mime" "net" "net/http" "os" "os/exec" "os/signal" "path/filepath" "runtime" "strings" "syscall" "time" "github.com/fatih/color" "github.com/hrfee/jfa-go/common" _ "github.com/hrfee/jfa-go/docs" "github.com/hrfee/jfa-go/logger" "github.com/hrfee/jfa-go/ombi" "github.com/hrfee/mediabrowser" "github.com/lithammer/shortuuid/v3" "gopkg.in/ini.v1" ) var ( PLATFORM string = runtime.GOOS SOCK string = "jfa-go.sock" SRV *http.Server RESTART chan bool TRAYRESTART chan bool DATA, CONFIG, HOST *string PORT *int DEBUG *bool PPROF *bool TEST bool SWAGGER *bool QUIT = false RUNNING = false // Used to know how many times to re-broadcast restart signal. RESTARTLISTENERCOUNT = 0 warning = color.New(color.FgYellow).SprintfFunc() info = color.New(color.FgMagenta).SprintfFunc() hiwhite = color.New(color.FgHiWhite).SprintfFunc() white = color.New(color.FgWhite).SprintfFunc() version string commit string ) var temp = func() string { temp := "/tmp" if PLATFORM == "windows" { temp = os.Getenv("TEMP") } return temp }() var serverTypes = map[string]string{ "jellyfin": "Jellyfin", "emby": "Emby (experimental)", } var serverType = mediabrowser.JellyfinServer var substituteStrings = "" // User is used for auth purposes. type User struct { UserID string `json:"id"` Username string `json:"username"` Password string `json:"password"` } // contains (almost) everything the application needs, essentially. This was a dumb design decision imo. type appContext struct { // defaults *Config config *ini.File configPath string configBasePath string configBase settings dataPath string webFS httpFS cssClass string // Default theme, "light"|"dark". jellyfinLogin bool adminUsers []User invalidTokens []string // Keeping jf name because I can't think of a better one jf *mediabrowser.MediaBrowser authJf *mediabrowser.MediaBrowser ombi *ombi.Ombi datePattern string timePattern string storage Storage validator Validator email *Emailer telegram *TelegramDaemon discord *DiscordDaemon matrix *MatrixDaemon info, debug, err *logger.Logger host string port int version string URLBase string updater *Updater newUpdate bool // Whether whatever's in update is new. tag Tag update Update internalPWRs map[string]InternalPWR } func generateSecret(length int) (string, error) { bytes := make([]byte, length) _, err := rand.Read(bytes) if err != nil { return "", err } return base64.URLEncoding.EncodeToString(bytes), err } func test(app *appContext) { fmt.Printf("\n\n----\n\n") settings := map[string]interface{}{ "server": app.jf.Server, "server version": app.jf.ServerInfo.Version, "server name": app.jf.ServerInfo.Name, "authenticated?": app.jf.Authenticated, "access token": app.jf.AccessToken, "username": app.jf.Username, } for n, v := range settings { fmt.Println(n, ":", v) } users, status, err := app.jf.GetUsers(false) fmt.Printf("GetUsers: code %d err %s maplength %d\n", status, err, len(users)) fmt.Printf("View output? [y/n]: ") var choice string fmt.Scanln(&choice) if strings.Contains(choice, "y") { out, err := json.MarshalIndent(users, "", " ") fmt.Print(string(out), err) } fmt.Printf("Enter a user to grab: ") var username string fmt.Scanln(&username) user, status, err := app.jf.UserByName(username, false) fmt.Printf("UserByName (%s): code %d err %s", username, status, err) out, _ := json.MarshalIndent(user, "", " ") fmt.Print(string(out)) } func start(asDaemon, firstCall bool) { RESTARTLISTENERCOUNT = 0 RUNNING = true defer func() { RUNNING = false }() defer func() { if r := recover(); r != nil { Exit(r) } }() // app encompasses essentially all useful functions. app := new(appContext) /* set default config and data paths data: Contains invites.json, emails.json, user_profile.json, etc. config: config.ini. Usually in data, but can be changed via -config. localFS: jfa-go's internal data. On internal builds, this is contained within the binary. On external builds, the directory is named "data" and placed next to the executable. */ userConfigDir, _ := os.UserConfigDir() app.dataPath = filepath.Join(userConfigDir, "jfa-go") app.configPath = filepath.Join(app.dataPath, "config.ini") // gin-static doesn't just take a plain http.FileSystem, so we implement it's ServeFileSystem. See static.go. app.webFS = httpFS{ hfs: http.FS(localFS), fs: localFS, } app.info = logger.NewLogger(os.Stdout, "[INFO] ", log.Ltime, color.FgHiWhite) app.info.SetFatalFunc(Exit) app.err = logger.NewLogger(os.Stdout, "[ERROR] ", log.Ltime|log.Lshortfile, color.FgRed) app.err.SetFatalFunc(Exit) app.loadArgs(firstCall) var firstRun bool if _, err := os.Stat(app.dataPath); os.IsNotExist(err) { os.Mkdir(app.dataPath, 0700) } if _, err := os.Stat(app.configPath); os.IsNotExist(err) { firstRun = true dConfig, err := fs.ReadFile(localFS, "config-default.ini") if err != nil { app.err.Fatalf("Couldn't find default config file") } nConfig, err := os.Create(app.configPath) if err != nil && os.IsNotExist(err) { err = os.MkdirAll(filepath.Dir(app.configPath), 0760) } if err != nil { app.err.Printf("Couldn't open config file for writing: \"%s\"", app.configPath) app.err.Fatalf("Error: %s", err) } defer nConfig.Close() _, err = nConfig.Write(dConfig) if err != nil { app.err.Fatalf("Couldn't copy default config.") } app.info.Printf("Copied default configuration to \"%s\"", app.configPath) tempConfig, _ := ini.Load(app.configPath) tempConfig.Section("").Key("first_run").SetValue("true") tempConfig.SaveTo(app.configPath) } var debugMode bool var address string if err := app.loadConfig(); err != nil { app.err.Fatalf("Failed to load config file \"%s\": %v", app.configPath, err) } if app.config.Section("").Key("first_run").MustBool(false) { firstRun = true } app.version = app.config.Section("jellyfin").Key("version").String() // read from config... debugMode = app.config.Section("ui").Key("debug").MustBool(false) // then from flag if *DEBUG { debugMode = true } if debugMode { app.debug = logger.NewLogger(os.Stdout, "[DEBUG] ", log.Ltime|log.Lshortfile, color.FgYellow) } else { app.debug = logger.NewEmptyLogger() } if *PPROF { app.info.Print(warning("\n\nWARNING: Don't use pprof in production.\n\n")) } // Starts listener to receive commands over a unix socket. Use with 'jfa-go start/stop' if asDaemon { go func() { os.Remove(SOCK) listener, err := net.Listen("unix", SOCK) if err != nil { app.err.Fatalf("Couldn't establish socket connection at %s\n", SOCK) } c := make(chan os.Signal, 1) signal.Notify(c, os.Interrupt, syscall.SIGTERM) go func() { <-c os.Remove(SOCK) os.Exit(1) }() defer func() { listener.Close() os.Remove(SOCK) }() for { con, err := listener.Accept() if err != nil { app.err.Printf("Couldn't read message on %s: %s", SOCK, err) continue } buf := make([]byte, 512) nr, err := con.Read(buf) if err != nil { app.err.Printf("Couldn't read message on %s: %s", SOCK, err) continue } command := string(buf[0:nr]) if command == "stop" { app.shutdown() } } }() } app.storage.lang.CommonPath = "common" app.storage.lang.FormPath = "form" app.storage.lang.AdminPath = "admin" app.storage.lang.EmailPath = "email" app.storage.lang.TelegramPath = "telegram" app.storage.lang.PasswordResetPath = "pwreset" externalLang := app.config.Section("files").Key("lang_files").MustString("") var err error if externalLang == "" { err = app.storage.loadLang(langFS) } else { err = app.storage.loadLang(langFS, os.DirFS(externalLang)) } if err != nil { app.info.Fatalf("Failed to load language files: %+v\n", err) } if !firstRun { app.host = app.config.Section("ui").Key("host").String() if app.config.Section("advanced").Key("tls").MustBool(false) { app.info.Println("Using TLS/HTTP2") app.port = app.config.Section("advanced").Key("tls_port").MustInt(8057) } else { app.port = app.config.Section("ui").Key("port").MustInt(8056) } if *HOST != app.host && *HOST != "" { app.host = *HOST } if *PORT != app.port && *PORT > 0 { app.port = *PORT } if h := os.Getenv("JFA_HOST"); h != "" { app.host = h if p := os.Getenv("JFA_PORT"); p != "" { var port int _, err := fmt.Sscan(p, &port) if err == nil { app.port = port } } } address = fmt.Sprintf("%s:%d", app.host, app.port) app.debug.Printf("Loaded config file \"%s\"", app.configPath) app.debug.Println("Loading storage") app.storage.invite_path = app.config.Section("files").Key("invites").String() if err := app.storage.loadInvites(); err != nil { app.err.Printf("Failed to load Invites: %v", err) } app.storage.emails_path = app.config.Section("files").Key("emails").String() if err := app.storage.loadEmails(); err != nil { app.err.Printf("Failed to load Emails: %v", err) err := migrateEmailStorage(app) if err != nil { app.err.Printf("Failed to migrate Email storage: %v", err) } } app.storage.policy_path = app.config.Section("files").Key("user_template").String() if err := app.storage.loadPolicy(); err != nil { app.err.Printf("Failed to load Policy: %v", err) } app.storage.configuration_path = app.config.Section("files").Key("user_configuration").String() if err := app.storage.loadConfiguration(); err != nil { app.err.Printf("Failed to load Configuration: %v", err) } app.storage.displayprefs_path = app.config.Section("files").Key("user_displayprefs").String() if err := app.storage.loadDisplayprefs(); err != nil { app.err.Printf("Failed to load Displayprefs: %v", err) } app.storage.users_path = app.config.Section("files").Key("users").String() if err := app.storage.loadUsers(); err != nil { app.err.Printf("Failed to load Users: %v", err) } app.storage.telegram_path = app.config.Section("files").Key("telegram_users").String() if err := app.storage.loadTelegramUsers(); err != nil { app.err.Printf("Failed to load Telegram users: %v", err) } app.storage.discord_path = app.config.Section("files").Key("discord_users").String() if err := app.storage.loadDiscordUsers(); err != nil { app.err.Printf("Failed to load Discord users: %v", err) } app.storage.matrix_path = app.config.Section("files").Key("matrix_users").String() if err := app.storage.loadMatrixUsers(); err != nil { app.err.Printf("Failed to load Matrix users: %v", err) } app.storage.announcements_path = app.config.Section("files").Key("announcements").String() if err := app.storage.loadAnnouncements(); err != nil { app.err.Printf("Failed to load announcement templates: %v", err) } app.storage.profiles_path = app.config.Section("files").Key("user_profiles").String() app.storage.loadProfiles() if app.config.Section("ombi").Key("enabled").MustBool(false) { app.storage.ombi_path = app.config.Section("files").Key("ombi_template").String() app.storage.loadOmbiTemplate() ombiServer := app.config.Section("ombi").Key("server").String() app.ombi = ombi.NewOmbi( ombiServer, app.config.Section("ombi").Key("api_key").String(), common.NewTimeoutHandler("Ombi", ombiServer, true), ) } // Read config-base for settings on web. app.configBasePath = "config-base.json" configBase, _ := fs.ReadFile(localFS, app.configBasePath) json.Unmarshal(configBase, &app.configBase) secret, err := generateSecret(16) if err != nil { app.err.Fatal(err) } os.Setenv("JFA_SECRET", secret) // Initialize jellyfin/emby connection server := app.config.Section("jellyfin").Key("server").String() cacheTimeout := int(app.config.Section("jellyfin").Key("cache_timeout").MustUint(30)) stringServerType := app.config.Section("jellyfin").Key("type").String() timeoutHandler := mediabrowser.NewNamedTimeoutHandler("Jellyfin", "\""+server+"\"", true) if stringServerType == "emby" { serverType = mediabrowser.EmbyServer timeoutHandler = mediabrowser.NewNamedTimeoutHandler("Emby", "\""+server+"\"", true) app.info.Println("Using Emby server type") fmt.Println(warning("WARNING: Emby compatibility is experimental, and support is limited.\nPassword resets are not available.")) } else { app.info.Println("Using Jellyfin server type") } app.jf, err = mediabrowser.NewServer( serverType, server, app.config.Section("jellyfin").Key("client").String(), app.config.Section("jellyfin").Key("version").String(), app.config.Section("jellyfin").Key("device").String(), app.config.Section("jellyfin").Key("device_id").String(), timeoutHandler, cacheTimeout, ) if err != nil { app.err.Fatalf("Failed to authenticate with Jellyfin @ \"%s\": %v", server, err) } if debugMode { app.jf.Verbose = true } var status int _, status, err = app.jf.Authenticate(app.config.Section("jellyfin").Key("username").String(), app.config.Section("jellyfin").Key("password").String()) if status != 200 || err != nil { app.err.Fatalf("Failed to authenticate with Jellyfin @ \"%s\" (%d): %v", server, status, err) } app.info.Printf("Authenticated with \"%s\"", server) runMigrations(app) // Auth (manual user/pass or jellyfin) app.jellyfinLogin = true if jfLogin, _ := app.config.Section("ui").Key("jellyfin_login").Bool(); !jfLogin { app.jellyfinLogin = false user := User{} user.UserID = shortuuid.New() user.Username = app.config.Section("ui").Key("username").String() user.Password = app.config.Section("ui").Key("password").String() app.adminUsers = append(app.adminUsers, user) } else { app.debug.Println("Using Jellyfin for authentication") app.authJf, _ = mediabrowser.NewServer(serverType, server, "jfa-go", app.version, "auth", "auth", timeoutHandler, cacheTimeout) if debugMode { app.authJf.Verbose = true } } // Since email depends on language, the email reload in loadConfig won't work first time. app.email = NewEmailer(app) app.loadStrftime() var validatorConf ValidatorConf if !app.config.Section("password_validation").Key("enabled").MustBool(false) { validatorConf = ValidatorConf{} } else { validatorConf = ValidatorConf{ "length": app.config.Section("password_validation").Key("min_length").MustInt(0), "uppercase": app.config.Section("password_validation").Key("upper").MustInt(0), "lowercase": app.config.Section("password_validation").Key("lower").MustInt(0), "number": app.config.Section("password_validation").Key("number").MustInt(0), "special": app.config.Section("password_validation").Key("special").MustInt(0), } } app.validator.init(validatorConf) // Test mode for testing connection to Jellyfin, accessed with 'jfa-go test' if TEST { test(app) os.Exit(0) } invDaemon := newInviteDaemon(time.Duration(60*time.Second), app) go invDaemon.run() defer invDaemon.Shutdown() userDaemon := newUserDaemon(time.Duration(60*time.Second), app) go userDaemon.run() defer userDaemon.shutdown() if app.config.Section("password_resets").Key("enabled").MustBool(false) && serverType == mediabrowser.JellyfinServer { go app.StartPWR() } if app.config.Section("updates").Key("enabled").MustBool(false) { go app.checkForUpdates() } if telegramEnabled { app.telegram, err = newTelegramDaemon(app) if err != nil { app.err.Printf("Failed to authenticate with Telegram: %v", err) telegramEnabled = false } else { go app.telegram.run() defer app.telegram.Shutdown() } } if discordEnabled { app.discord, err = newDiscordDaemon(app) if err != nil { app.err.Printf("Failed to authenticate with Discord: %v", err) discordEnabled = false } else { go app.discord.run() defer app.discord.Shutdown() } } if matrixEnabled { app.matrix, err = newMatrixDaemon(app) if err != nil { app.err.Printf("Failed to initialize Matrix daemon: %v", err) matrixEnabled = false } else { go app.matrix.run() defer app.matrix.Shutdown() } } } else { debugMode = false if *PORT != app.port && *PORT > 0 { app.port = *PORT } else { app.port = 8056 } if *HOST != app.host && *HOST != "" { app.host = *HOST } else { app.host = "0.0.0.0" } address = fmt.Sprintf("%s:%d", app.host, app.port) app.storage.lang.SetupPath = "setup" err := app.storage.loadLangSetup(langFS) if err != nil { app.info.Fatalf("Failed to load language files: %+v\n", err) } } cssHeader = app.loadCSSHeader() // workaround for potentially broken windows mime types mime.AddExtensionType(".js", "application/javascript") app.info.Println("Initializing router") router := app.loadRouter(address, debugMode) app.info.Println("Loading routes") if !firstRun { app.loadRoutes(router) } else { app.loadSetup(router) app.info.Printf("Loading setup @ %s", address) } go func() { if app.config.Section("advanced").Key("tls").MustBool(false) { cert := app.config.Section("advanced").Key("tls_cert").MustString("") key := app.config.Section("advanced").Key("tls_key").MustString("") if err := SRV.ListenAndServeTLS(cert, key); err != nil { app.err.Printf("Failure serving: %s", err) } } else { if err := SRV.ListenAndServe(); err != nil { app.err.Printf("Failure serving: %s", err) } } }() if firstRun { app.info.Printf("Loaded, visit %s to start.", address) } else { app.info.Printf("Loaded @ %s", address) } waitForRestart() app.info.Printf("Restart/Quit signal received, give me a second!") ctx, cancel := context.WithTimeout(context.Background(), time.Second*5) defer cancel() if err := SRV.Shutdown(ctx); err != nil { app.err.Fatalf("Server shutdown error: %s", err) } app.info.Println("Server shut down.") return } func shutdown() { QUIT = true RESTART <- true // Safety Sleep (Ensure shutdown tasks get done) time.Sleep(time.Second) } func (app *appContext) shutdown() { app.info.Println("Shutting down...") shutdown() } // Receives a restart signal and re-broadcasts it for other components. func waitForRestart() { RESTARTLISTENERCOUNT++ <-RESTART RESTARTLISTENERCOUNT-- if RESTARTLISTENERCOUNT > 0 { RESTART <- true } } func flagPassed(name string) (found bool) { for i, f := range os.Args { if f == name { found = true // Remove the flag, to avoid issues wit the flag library. os.Args = append(os.Args[:i], os.Args[i+1:]...) return } } return } // @title jfa-go internal API // @version 0.4.0 // @description API for the jfa-go frontend // @contact.name Harvey Tindall // @contact.email hrfee@hrfee.dev // @license.name MIT // @license.url https://raw.githubusercontent.com/hrfee/jfa-go/main/LICENSE // @BasePath / // @securityDefinitions.apikey Bearer // @in header // @name Authorization // @securityDefinitions.basic getTokenAuth // @name getTokenAuth // @securityDefinitions.basic getUserTokenAuth // @name getUserTokenAuth // @tag.name Auth // @tag.description -Get a token here if running swagger UI locally.- // @tag.name Users // @tag.description Jellyfin user related operations. // @tag.name Invites // @tag.description Invite related operations. // @tag.name Profiles & Settings // @tag.description Profile and settings related operations. // @tag.name Configuration // @tag.description jfa-go settings. // @tag.name Ombi // @tag.description Ombi related operations. // @tag.name Other // @tag.description Things that dont fit elsewhere. func printVersion() { tray := "" if TRAY { tray = " TrayIcon" } fmt.Println(info("jfa-go version: %s (%s)%s\n", hiwhite(version), white(commit), tray)) } func main() { f, err := logOutput() if err != nil { fmt.Printf("Failed to start logging: %v\n", err) } defer f() printVersion() SOCK = filepath.Join(temp, SOCK) fmt.Println("Socket:", SOCK) if flagPassed("test") { TEST = true } loadFilesystems() quit := make(chan os.Signal, 0) signal.Notify(quit, os.Interrupt, syscall.SIGTERM) // defer close(quit) go func() { <-quit shutdown() }() if flagPassed("start") { args := []string{} for i, f := range os.Args { if f == "start" { args = append(args, "daemon") } else if i != 0 { args = append(args, f) } } cmd := exec.Command(os.Args[0], args...) cmd.Start() os.Exit(1) } else if flagPassed("stop") { con, err := net.Dial("unix", SOCK) if err != nil { fmt.Printf("Couldn't dial socket %s, are you sure jfa-go is running?\n", SOCK) os.Exit(1) } _, err = con.Write([]byte("stop")) if err != nil { fmt.Printf("Couldn't send command to socket %s, are you sure jfa-go is running?\n", SOCK) os.Exit(1) } fmt.Println("Sent.") } else if flagPassed("daemon") { start(true, true) } else if flagPassed("systemd") { service, err := fs.ReadFile(localFS, "jfa-go.service") if err != nil { fmt.Printf("Couldn't read jfa-go.service: %v\n", err) os.Exit(1) } absPath, err := filepath.Abs(os.Args[0]) if err != nil { absPath = os.Args[0] } command := absPath for i, v := range os.Args { if i != 0 && v != "systemd" { command += " " + v } } service = []byte(strings.Replace(string(service), "{executable}", command, 1)) err = os.WriteFile("jfa-go.service", service, 0666) if err != nil { fmt.Printf("Couldn't write jfa-go.service: %v\n", err) os.Exit(1) } fmt.Println(info(`If you want to execute jfa-go with special arguments, re-run this command with them. Move the newly created "jfa-go.service" file to ~/.config/systemd/user (Creating it if necessary). Then run "systemctl --user daemon-reload". You can then run: `)) // I have no idea why sleeps are necessary, but if not the lines print in the wrong order. time.Sleep(time.Millisecond) color.New(color.FgGreen).Print("To start: ") time.Sleep(time.Millisecond) fmt.Print(info("systemctl --user start jfa-go\n\n")) time.Sleep(time.Millisecond) color.New(color.FgRed).Print("To stop: ") time.Sleep(time.Millisecond) fmt.Print(info("systemctl --user stop jfa-go\n\n")) time.Sleep(time.Millisecond) color.New(color.FgYellow).Print("To restart: ") time.Sleep(time.Millisecond) fmt.Print(info("systemctl --user stop jfa-go\n")) } else if TRAY { RunTray() } else { RESTART = make(chan bool, 1) start(false, true) for { if QUIT { break } printVersion() start(false, false) } } }