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jfa-go/main.go

714 lines
21 KiB

package main
import (
"context"
"crypto/rand"
"encoding/base64"
"encoding/json"
"flag"
"fmt"
"io/fs"
"log"
"mime"
"net"
"net/http"
"os"
"os/exec"
"os/signal"
"path/filepath"
"runtime"
"strconv"
"strings"
"time"
"github.com/fatih/color"
"github.com/hrfee/jfa-go/common"
_ "github.com/hrfee/jfa-go/docs"
"github.com/hrfee/jfa-go/mediabrowser"
"github.com/hrfee/jfa-go/ombi"
"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
DATA, CONFIG, HOST *string
PORT *int
DEBUG *bool
PPROF *bool
TEST bool
SWAGGER *bool
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-theme"|"dark-theme".
jellyfinLogin bool
users []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
info, debug, err Logger
host string
port int
version string
quit chan os.Signal
URLBase string
updater *Updater
newUpdate bool // Whether whatever's in update is new.
tag Tag
update Update
}
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) {
// 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 = NewLogger(os.Stdout, "[INFO] ", log.Ltime, color.FgHiWhite)
app.err = NewLogger(os.Stdout, "[ERROR] ", log.Ltime, color.FgRed)
if firstCall {
DATA = flag.String("data", app.dataPath, "alternate path to data directory.")
CONFIG = flag.String("config", app.configPath, "alternate path to config file.")
HOST = flag.String("host", "", "alternate address to host web ui on.")
PORT = flag.Int("port", 0, "alternate port to host web ui on.")
DEBUG = flag.Bool("debug", false, "Enables debug logging.")
PPROF = flag.Bool("pprof", false, "Exposes pprof profiler on /debug/pprof.")
SWAGGER = flag.Bool("swagger", false, "Enable swagger at /swagger/index.html")
flag.Parse()
if *SWAGGER {
os.Setenv("SWAGGER", "1")
}
if *DEBUG {
os.Setenv("DEBUG", "1")
}
if *PPROF {
os.Setenv("PPROF", "1")
}
}
if os.Getenv("SWAGGER") == "1" {
*SWAGGER = true
}
if os.Getenv("DEBUG") == "1" {
*DEBUG = true
}
if os.Getenv("PPROF") == "1" {
*PPROF = true
}
// attempt to apply command line flags correctly
if app.configPath == *CONFIG && app.dataPath != *DATA {
app.dataPath = *DATA
app.configPath = filepath.Join(app.dataPath, "config.ini")
} else if app.configPath != *CONFIG && app.dataPath == *DATA {
app.configPath = *CONFIG
} else {
app.configPath = *CONFIG
app.dataPath = *DATA
}
// Previously used for self-restarts but leaving them here as they might be useful.
if v := os.Getenv("JFA_CONFIGPATH"); v != "" {
app.configPath = v
}
if v := os.Getenv("JFA_DATAPATH"); v != "" {
app.dataPath = v
}
os.Setenv("JFA_CONFIGPATH", app.configPath)
os.Setenv("JFA_DATAPATH", app.dataPath)
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 {
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)
}
var debugMode bool
var address string
if app.loadConfig() != nil {
app.err.Fatalf("Failed to load config file \"%s\"", app.configPath)
}
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 = NewLogger(os.Stdout, "[DEBUG] ", log.Ltime|log.Lshortfile, color.FgYellow)
} else {
app.debug = emptyLogger(false)
}
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() {
socket := SOCK
os.Remove(socket)
listener, err := net.Listen("unix", socket)
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)
go func() {
<-c
os.Remove(socket)
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", socket, err)
continue
}
buf := make([]byte, 512)
nr, err := con.Read(buf)
if err != nil {
app.err.Printf("Couldn't read message on %s: %s", socket, 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"
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()
app.storage.loadInvites()
app.storage.emails_path = app.config.Section("files").Key("emails").String()
app.storage.loadEmails()
app.storage.policy_path = app.config.Section("files").Key("user_template").String()
app.storage.loadPolicy()
app.storage.configuration_path = app.config.Section("files").Key("user_configuration").String()
app.storage.loadConfiguration()
app.storage.displayprefs_path = app.config.Section("files").Key("user_displayprefs").String()
app.storage.loadDisplayprefs()
app.storage.users_path = app.config.Section("files").Key("users").String()
app.storage.loadUsers()
app.storage.profiles_path = app.config.Section("files").Key("user_profiles").String()
app.storage.loadProfiles()
if !(app.storage.policy.BlockedTags == nil && app.storage.configuration.GroupedFolders == nil && len(app.storage.displayprefs) == 0) {
app.info.Println("Migrating user template files to new profile format")
app.storage.migrateToProfile()
for _, path := range [3]string{app.storage.policy_path, app.storage.configuration_path, app.storage.displayprefs_path} {
if _, err := os.Stat(path); !os.IsNotExist(err) {
dir, fname := filepath.Split(path)
newFname := strings.Replace(fname, ".json", ".old.json", 1)
err := os.Rename(path, filepath.Join(dir, newFname))
if err != nil {
app.err.Fatalf("Failed to rename %s: %s", fname, err)
}
}
}
app.info.Println("In case of a problem, your original files have been renamed to <file>.old.json")
app.storage.storeProfiles()
}
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)
themes := map[string]string{
"Jellyfin (Dark)": "dark-theme",
"Default (Light)": "light-theme",
}
// For move from Bootstrap to a17t
if app.config.Section("ui").Key("theme").String() == "Bootstrap (Light)" {
app.config.Section("ui").Key("theme").SetValue("Default (Light)")
}
if val, ok := themes[app.config.Section("ui").Key("theme").String()]; ok {
app.cssClass = val
}
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 := common.NewTimeoutHandler("Jellyfin", server, true)
if stringServerType == "emby" {
serverType = mediabrowser.EmbyServer
timeoutHandler = common.NewTimeoutHandler("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, _ = 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,
)
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: Code %d", server, status)
}
app.info.Printf("Authenticated with %s", server)
/* A couple of unstable Jellyfin 10.7.0 releases decided to hyphenate user IDs.
This checks if the version is equal or higher. */
checkVersion := func(version string) int {
numberStrings := strings.Split(version, ".")
n := 0
for _, s := range numberStrings {
num, err := strconv.Atoi(s)
if err == nil {
n += num
}
}
return n
}
if serverType == mediabrowser.JellyfinServer && checkVersion(app.jf.ServerInfo.Version) >= checkVersion("10.7.0") {
// Get users to check if server uses hyphenated userIDs
app.jf.GetUsers(false)
noHyphens := true
for id := range app.storage.emails {
if strings.Contains(id, "-") {
noHyphens = false
break
}
}
if noHyphens == app.jf.Hyphens {
var newEmails map[string]interface{}
var status int
var err error
if app.jf.Hyphens {
app.info.Println(info("Your build of Jellyfin appears to hypenate user IDs. Your emails.json file will be modified to match."))
time.Sleep(time.Second * time.Duration(3))
newEmails, status, err = app.hyphenateEmailStorage(app.storage.emails)
} else {
app.info.Println(info("Your emails.json file uses hyphens, but the Jellyfin server no longer does. It will be modified."))
time.Sleep(time.Second * time.Duration(3))
newEmails, status, err = app.deHyphenateEmailStorage(app.storage.emails)
}
if status != 200 || err != nil {
app.err.Printf("Failed to get users from Jellyfin: Code %d", status)
app.debug.Printf("Error: %s", err)
app.err.Fatalf("Couldn't upgrade emails.json")
}
bakFile := app.storage.emails_path + ".bak"
err = storeJSON(bakFile, app.storage.emails)
if err != nil {
app.err.Fatalf("couldn't store emails.json backup: %s", err)
}
app.storage.emails = newEmails
err = app.storage.storeEmails()
if err != nil {
app.err.Fatalf("couldn't store emails.json: %s", err)
}
}
}
// 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.users = append(app.users, user)
} else {
app.debug.Println("Using Jellyfin for authentication")
app.authJf, _ = mediabrowser.NewServer(serverType, server, "jfa-go", app.version, "auth", "auth", timeoutHandler, cacheTimeout)
}
// 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)
}
inviteDaemon := newInviteDaemon(time.Duration(60*time.Second), app)
go inviteDaemon.run()
userDaemon := newUserDaemon(time.Duration(60*time.Second), app)
go userDaemon.run()
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()
}
} else {
debugMode = false
address = "0.0.0.0:8056"
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)
}
}
}()
app.quit = make(chan os.Signal)
signal.Notify(app.quit, os.Interrupt)
go func() {
for range app.quit {
app.shutdown()
}
}()
for range RESTART {
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)
}
return
}
}
func (app *appContext) shutdown() {
app.info.Println("Shutting down...")
cntx, cancel := context.WithTimeout(context.Background(), time.Second*5)
defer cancel()
if err := SRV.Shutdown(cntx); err != nil {
app.err.Fatalf("Server shutdown error: %s", err)
}
os.Exit(1)
}
func flagPassed(name string) (found bool) {
for _, f := range os.Args {
if f == name {
found = true
}
}
return
}
// @title jfa-go internal API
// @version 0.2.0
// @description API for the jfa-go frontend
// @contact.name Harvey Tindall
// @contact.email hrfee@protonmail.ch
// @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
// @tag.name Auth
// @tag.description --------Get a token here first!--------
// @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() {
fmt.Println(info("jfa-go version: %s (%s)\n", hiwhite(version), white(commit)))
}
func main() {
printVersion()
SOCK = filepath.Join(temp, SOCK)
fmt.Println("Socket:", SOCK)
if flagPassed("test") {
TEST = true
}
loadFilesystems()
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 {
RESTART = make(chan bool, 1)
start(false, true)
for {
printVersion()
start(false, false)
}
}
}