forked from schollz/musicsaur
/
server.go
236 lines (207 loc) · 6.47 KB
/
server.go
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package main
import (
"encoding/json"
"flag"
"fmt"
"io/ioutil"
"log"
"math/rand"
"net/http"
"os"
"os/signal"
"syscall"
"strconv"
"strings"
"time"
"github.com/mholt/caddy"
"github.com/toqueteos/webbrowser"
"gopkg.in/tylerb/graceful.v1"
// plug in the HTTP server type
_ "github.com/mholt/caddy/caddyhttp"
"github.com/mholt/caddy/caddytls"
)
const (
appName = "musicsaur"
)
var VersionNum string
var Build string
var BuildTime string
func cleanup() {
fmt.Println("cleanup")
}
func loadCaddyfile() (caddy.Input, error) {
// Caddyfile in cwd
contents := `IPADDRESS:PORT1 {
proxy / IPADDRESS:PORT2 {
except /static
}
header / Access-Control-Allow-Origin "*"
tls off
root ./
gzip
log ./caddy.log
}`
contents = strings.Replace(contents, "IPADDRESS", statevar.IPAddress, -1)
contents = strings.Replace(contents, "PORT1", strconv.Itoa(statevar.Port), -1)
contents = strings.Replace(contents, "PORT2", strconv.Itoa(statevar.Port+1), -1)
return caddy.CaddyfileInput{
Contents: []byte(contents),
Filepath: "Caddyfile",
ServerTypeName: "http",
}, nil
}
// RuntimeArgs contains all runtime
// arguments available
var RuntimeArgs struct {
Port string
ServerCRT string
ServerKey string
}
func main() {
// Handle Ctl+C from http://stackoverflow.com/questions/11268943/golang-is-it-possible-to-capture-a-ctrlc-signal-and-run-a-cleanup-function-in
c := make(chan os.Signal, 2)
signal.Notify(c, os.Interrupt, syscall.SIGTERM)
go func() {
<-c
os.Exit(1)
}()
if len(Build) > 6 {
Build = Build[0:6]
}
flag.StringVar(&RuntimeArgs.Port, "p", "8033", "port to bind")
flag.StringVar(&RuntimeArgs.ServerCRT, "crt", "", "location of ssl crt")
flag.StringVar(&RuntimeArgs.ServerKey, "key", "", "location of ssl key")
flag.CommandLine.Usage = func() {
fmt.Println(`musicsaur (version ` + VersionNum + `, ` + Build + `): A Websocket Wiki and Kind Of A List Application
run this to start the server and then visit localhost at the port you specify
(see parameters).
Example: 'musicsaur -p 5000 127.0.0.1'
Options:`)
flag.CommandLine.PrintDefaults()
}
dat, _ := ioutil.ReadFile("./static/logo.txt")
fmt.Println(string(dat))
fmt.Printf("\n\nversion %s (%s)\n", VersionNum, Build)
setupConfiguration()
// Load state
if _, err := os.Stat("state.json"); err == nil {
dat, err := ioutil.ReadFile("state.json")
if err != nil {
panic(err)
}
json.Unmarshal(dat, &statevar)
statevar.IsPlaying = false
statevar.SongList = []string{}
statevar.LastMuted = 0
statevar.IsMuted = false
statevar.IndexPage = ""
} else {
if len(conf.MusicFolders) == 0 {
executable := strings.Split(os.Args[0], "\\")
executable_name := executable[len(executable)-1]
fmt.Println("Run \"" + executable_name + " --help\" to learn how to add a folder of music")
os.Exit(0)
}
statevar = State{
SongMap: make(map[string]Song),
SongList: []string{},
PathList: make(map[string]bool),
SongStartTime: 0,
IsPlaying: false,
CurrentSong: "None",
CurrentSongIndex: 0,
LastMuted: 0,
IsMuted: false,
IndexPage: "",
}
}
// Parse flags
flag.Parse()
if flag.Arg(0) == "" {
statevar.IPAddress = GetLocalIP()
} else {
statevar.IPAddress = flag.Arg(0)
}
port, _ := strconv.Atoi(RuntimeArgs.Port)
statevar.Port = port
mux := http.NewServeMux()
mux.HandleFunc("/", func(w http.ResponseWriter, r *http.Request) {
//defer timeTrack(time.Now(), r.RemoteAddr+" /")
// Load index page
index_contents, err := ioutil.ReadFile("./templates/index.html")
if err != nil {
panic(err)
}
statevar.IndexPage = string(index_contents)
html_response := statevar.IndexPage
html_response = strings.Replace(html_response, "{{ data['random_integer'] }}", strconv.Itoa(rand.Intn(10000)), -1)
html_response = strings.Replace(html_response, "{{ data['check_up_wait_time'] }}", strconv.Itoa(conf.Client.CheckupWaitTime), -1)
html_response = strings.Replace(html_response, "{{ data['max_sync_lag'] }}", strconv.Itoa(conf.Client.MaxSyncLag), -1)
html_response = strings.Replace(html_response, "{{ data['message'] }}", "Syncing...", -1)
html_response = strings.Replace(html_response, "{{ data['playlist_html'] | safe }}", getPlaylistHTML(), -1)
html_response = strings.Replace(html_response, "{{ data['sound_extension'] }}", statevar.MusicExtension, -1)
fmt.Fprintf(w, html_response)
})
mux.HandleFunc("/sound.webm", func(w http.ResponseWriter, r *http.Request) {
defer timeTrack(time.Now(), r.RemoteAddr+" /sound.mp3")
w.Header().Set("Content-Type", "audio/mpeg")
w.Write([]byte(rawSongData))
})
mux.HandleFunc("/sound.mp3", func(w http.ResponseWriter, r *http.Request) {
defer timeTrack(time.Now(), r.RemoteAddr+" /sound.mp3")
w.Header().Set("Content-Type", "audio/mpeg")
w.Write([]byte(rawSongData))
})
mux.HandleFunc("/sync", SyncRequest)
mux.HandleFunc("/nextsong", NextSongRequest)
//http.ListenAndServe(":5000", nil)
for _, k := range conf.Autostart {
fmt.Println(k)
response, err := runSSHCommand(k, "pkill -9 midori </dev/null > log 2>&1 &")
fmt.Println(response)
fmt.Println(err)
}
for _, k := range conf.Autostart {
fmt.Println("Running autostart...")
fmt.Println(k)
cmd := "xinit /usr/bin/midori -a http://" + statevar.IPAddress + ":" + strconv.Itoa(statevar.Port) + "/ </dev/null > log 2>&1 &"
fmt.Println(cmd)
response, err := runSSHCommand(k, cmd)
fmt.Println(response)
fmt.Println(err)
}
fmt.Println("Open a browser to http://" + statevar.IPAddress + ":" + strconv.Itoa(statevar.Port))
fmt.Println("To stop server, use Ctl + C\n\n")
log.Printf("Starting server with %d songs\n", len(statevar.SongList))
// Load Mp3s
if len(conf.MusicFolders) > 0 {
for _, folder := range conf.MusicFolders {
loadMp3s(folder)
}
}
// Load song list
for k, _ := range statevar.SongMap {
statevar.SongList = append(statevar.SongList, k)
}
statevar.SongList.Sort()
// start server
skipTrack(statevar.CurrentSongIndex)
webbrowser.Open("http://" + statevar.IPAddress + ":" + strconv.Itoa(statevar.Port))
go graceful.Run(":"+strconv.Itoa(statevar.Port+1), 10*time.Second, mux)
caddy.AppName = appName
caddy.AppVersion = VersionNum + " (" + Build + ")"
caddy.Quiet = true
caddy.PidFile = ""
caddytls.DefaultCAUrl = "https://acme-v01.api.letsencrypt.org/directory"
caddyfile, err := loadCaddyfile()
if err != nil {
log.Fatal(err)
}
// Start your engines
instance, err := caddy.Start(caddyfile)
if err != nil {
log.Fatal(err)
}
// Twiddle your thumbs
instance.Wait()
}