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jfa-go/main.go

521 lines
15 KiB

package main
import (
"context"
"crypto/rand"
"encoding/base64"
"encoding/json"
"flag"
"fmt"
"io"
"io/ioutil"
"log"
"net"
"net/http"
"os"
"os/exec"
"os/signal"
"path/filepath"
"runtime"
"time"
"github.com/gin-contrib/pprof"
"github.com/gin-contrib/static"
"github.com/gin-gonic/gin"
"github.com/lithammer/shortuuid/v3"
"gopkg.in/ini.v1"
)
// Username is JWT!
type User struct {
UserID string `json:"id"`
Username string `json:"username"`
Password string `json:"password"`
}
type appContext struct {
// defaults *Config
config *ini.File
config_path string
configBase_path string
configBase map[string]interface{}
data_path string
local_path string
cssFile string
bsVersion int
jellyfinLogin bool
users []User
invalidTokens []string
jf *Jellyfin
authJf *Jellyfin
ombi *Ombi
datePattern string
timePattern string
storage Storage
validator Validator
email Emailer
info, debug, err *log.Logger
host string
port int
version string
quit chan os.Signal
}
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 setGinLogger(router *gin.Engine, debugMode bool) {
if debugMode {
router.Use(gin.LoggerWithFormatter(func(param gin.LogFormatterParams) string {
return fmt.Sprintf("[GIN/DEBUG] %s: %s(%s) => %d in %s; %s\n",
param.TimeStamp.Format("15:04:05"),
param.Method,
param.Path,
param.StatusCode,
param.Latency,
func() string {
if param.ErrorMessage != "" {
return "Error: " + param.ErrorMessage
}
return ""
}(),
)
}))
} else {
router.Use(gin.LoggerWithFormatter(func(param gin.LogFormatterParams) string {
return fmt.Sprintf("[GIN] %s(%s) => %d\n",
param.Method,
param.Path,
param.StatusCode,
)
}))
}
}
var (
PLATFORM string = runtime.GOOS
SOCK string = "jfa-go.sock"
SRV *http.Server
RESTART chan bool
DATA, CONFIG, HOST *string
PORT *int
DEBUG *bool
)
func start(asDaemon, firstCall bool) {
// app encompasses essentially all useful functions.
app := new(appContext)
/*
set default config, data and local paths
also, confusing naming here. data_path is not the internal 'data' directory, rather the users .config/jfa-go folder.
local_path is the internal 'data' directory.
*/
userConfigDir, _ := os.UserConfigDir()
app.data_path = filepath.Join(userConfigDir, "jfa-go")
app.config_path = filepath.Join(app.data_path, "config.ini")
executable, _ := os.Executable()
app.local_path = filepath.Join(filepath.Dir(executable), "data")
app.info = log.New(os.Stdout, "[INFO] ", log.Ltime)
app.err = log.New(os.Stdout, "[ERROR] ", log.Ltime|log.Lshortfile)
if firstCall {
DATA = flag.String("data", app.data_path, "alternate path to data directory.")
CONFIG = flag.String("config", app.config_path, "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 and exposes pprof.")
flag.Parse()
}
// attempt to apply command line flags correctly
if app.config_path == *CONFIG && app.data_path != *DATA {
app.data_path = *DATA
app.config_path = filepath.Join(app.data_path, "config.ini")
} else if app.config_path != *CONFIG && app.data_path == *DATA {
app.config_path = *CONFIG
} else {
app.config_path = *CONFIG
app.data_path = *DATA
}
// env variables are necessary because syscall.Exec for self-restarts doesn't doesn't work with arguments for some reason.
if v := os.Getenv("JFA_CONFIGPATH"); v != "" {
app.config_path = v
}
if v := os.Getenv("JFA_DATAPATH"); v != "" {
app.data_path = v
}
os.Setenv("JFA_CONFIGPATH", app.config_path)
os.Setenv("JFA_DATAPATH", app.data_path)
var firstRun bool
if _, err := os.Stat(app.data_path); os.IsNotExist(err) {
os.Mkdir(app.data_path, 0700)
}
if _, err := os.Stat(app.config_path); os.IsNotExist(err) {
firstRun = true
dConfigPath := filepath.Join(app.local_path, "config-default.ini")
var dConfig *os.File
dConfig, err = os.Open(dConfigPath)
if err != nil {
app.err.Fatalf("Couldn't find default config file \"%s\"", dConfigPath)
}
defer dConfig.Close()
var nConfig *os.File
nConfig, err := os.Create(app.config_path)
if err != nil {
app.err.Fatalf("Couldn't open config file for writing: \"%s\"", app.config_path)
}
defer nConfig.Close()
_, err = io.Copy(nConfig, dConfig)
if err != nil {
app.err.Fatalf("Couldn't copy default config. To do this manually, copy\n%s\nto\n%s", dConfigPath, app.config_path)
}
app.info.Printf("Copied default configuration to \"%s\"", app.config_path)
}
var debugMode bool
var address string
if app.loadConfig() != nil {
app.err.Fatalf("Failed to load config file \"%s\"", app.config_path)
}
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.info.Println("WARNING: Don't use debug mode in production, as it exposes pprof on the network.")
app.debug = log.New(os.Stdout, "[DEBUG] ", log.Ltime|log.Lshortfile)
} else {
app.debug = log.New(ioutil.Discard, "", 0)
}
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()
}
}
}()
}
if !firstRun {
app.host = app.config.Section("ui").Key("host").String()
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.config_path)
if app.config.Section("ui").Key("bs5").MustBool(false) {
app.cssFile = "bs5-jf.css"
app.bsVersion = 5
} else {
app.cssFile = "bs4-jf.css"
app.bsVersion = 4
}
app.debug.Println("Loading storage")
// app.storage.invite_path = filepath.Join(app.data_path, "invites.json")
app.storage.invite_path = app.config.Section("files").Key("invites").String()
app.storage.loadInvites()
// app.storage.emails_path = filepath.Join(app.data_path, "emails.json")
app.storage.emails_path = app.config.Section("files").Key("emails").String()
app.storage.loadEmails()
// app.storage.policy_path = filepath.Join(app.data_path, "user_template.json")
app.storage.policy_path = app.config.Section("files").Key("user_template").String()
app.storage.loadPolicy()
// app.storage.configuration_path = filepath.Join(app.data_path, "user_configuration.json")
app.storage.policy_path = app.config.Section("files").Key("user_configuration").String()
app.storage.loadConfiguration()
// app.storage.displayprefs_path = filepath.Join(app.data_path, "user_displayprefs.json")
app.storage.displayprefs_path = app.config.Section("files").Key("user_displayprefs").String()
app.storage.loadDisplayprefs()
if app.config.Section("ombi").Key("enabled").MustBool(false) {
app.storage.ombi_path = app.config.Section("files").Key("ombi_template").String()
app.storage.loadOmbiTemplate()
app.ombi = newOmbi(
app.config.Section("ombi").Key("server").String(),
app.config.Section("ombi").Key("api_key").String(),
true,
)
}
app.configBase_path = filepath.Join(app.local_path, "config-base.json")
config_base, _ := ioutil.ReadFile(app.configBase_path)
json.Unmarshal(config_base, &app.configBase)
themes := map[string]string{
"Jellyfin (Dark)": fmt.Sprintf("bs%d-jf.css", app.bsVersion),
"Bootstrap (Light)": fmt.Sprintf("bs%d.css", app.bsVersion),
"Custom CSS": "",
}
if val, ok := themes[app.config.Section("ui").Key("theme").String()]; ok {
app.cssFile = val
}
app.debug.Printf("Using css file \"%s\"", app.cssFile)
secret, err := GenerateSecret(16)
if err != nil {
app.err.Fatal(err)
}
os.Setenv("JFA_SECRET", secret)
app.jellyfinLogin = true
if val, _ := app.config.Section("ui").Key("jellyfin_login").Bool(); !val {
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")
}
server := app.config.Section("jellyfin").Key("server").String()
app.jf, _ = newJellyfin(server, "jfa-go", app.version, "hrfee-arch", "hrfee-arch")
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)
app.authJf, _ = newJellyfin(server, "jfa-go", app.version, "auth", "auth")
app.loadStrftime()
validatorConf := ValidatorConf{
"characters": app.config.Section("password_validation").Key("min_length").MustInt(0),
"uppercase characters": app.config.Section("password_validation").Key("upper").MustInt(0),
"lowercase characters": app.config.Section("password_validation").Key("lower").MustInt(0),
"numbers": app.config.Section("password_validation").Key("number").MustInt(0),
"special characters": app.config.Section("password_validation").Key("special").MustInt(0),
}
if !app.config.Section("password_validation").Key("enabled").MustBool(false) {
for key := range validatorConf {
validatorConf[key] = 0
}
}
app.validator.init(validatorConf)
app.email.init(app)
inviteDaemon := NewRepeater(time.Duration(60*time.Second), app)
go inviteDaemon.Run()
if app.config.Section("password_resets").Key("enabled").MustBool(false) {
go app.StartPWR()
}
} else {
debugMode = false
address = "0.0.0.0:8056"
}
app.info.Println("Loading routes")
if debugMode {
gin.SetMode(gin.DebugMode)
} else {
gin.SetMode(gin.ReleaseMode)
}
router := gin.New()
setGinLogger(router, debugMode)
router.Use(gin.Recovery())
router.Use(static.Serve("/", static.LocalFile(filepath.Join(app.local_path, "static"), false)))
router.LoadHTMLGlob(filepath.Join(app.local_path, "templates", "*"))
router.NoRoute(app.NoRouteHandler)
if debugMode {
app.debug.Println("Loading pprof")
pprof.Register(router)
}
if !firstRun {
router.GET("/", app.AdminPage)
router.GET("/getToken", app.getToken)
router.POST("/newUser", app.NewUser)
router.Use(static.Serve("/invite/", static.LocalFile(filepath.Join(app.local_path, "static"), false)))
router.GET("/invite/:invCode", app.InviteProxy)
api := router.Group("/", app.webAuth())
router.POST("/logout", app.Logout)
api.POST("/generateInvite", app.GenerateInvite)
api.GET("/getInvites", app.GetInvites)
api.POST("/setNotify", app.SetNotify)
api.POST("/deleteInvite", app.DeleteInvite)
api.GET("/getUsers", app.GetUsers)
api.POST("/modifyUsers", app.ModifyEmails)
api.POST("/setDefaults", app.SetDefaults)
api.GET("/getConfig", app.GetConfig)
api.POST("/modifyConfig", app.ModifyConfig)
if app.config.Section("ombi").Key("enabled").MustBool(false) {
api.GET("/getOmbiUsers", app.OmbiUsers)
api.POST("/setOmbiDefaults", app.SetOmbiDefaults)
}
app.info.Printf("Starting router @ %s", address)
} else {
windows := false
if PLATFORM == "windows" {
windows = true
}
router.GET("/", func(gc *gin.Context) {
gc.HTML(200, "setup.html", gin.H{
"windows": windows,
})
})
router.POST("/testJF", app.TestJF)
router.POST("/modifyConfig", app.ModifyConfig)
app.info.Printf("Loading setup @ %s", address)
}
SRV = &http.Server{
Addr: address,
Handler: router,
}
go func() {
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 {
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)
}
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
}
func main() {
fmt.Printf("jfa-go version: %s (%s)\n", VERSION, COMMIT)
folder := "/tmp"
if PLATFORM == "windows" {
folder = os.Getenv("TEMP")
}
SOCK = filepath.Join(folder, SOCK)
fmt.Println(SOCK)
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 {
fmt.Printf("jfa-go version: %s (%s)\n", VERSION, COMMIT)
start(false, false)
}
}
}