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Merge pull request #3 from stryan/state-revamp

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State revamp
This commit is contained in:
stryan 2021-01-12 10:37:23 -05:00 committed by GitHub
commit 5616814c83
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GPG Key ID: 4AEE18F83AFDEB23
6 changed files with 198 additions and 196 deletions
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92
bridge.go
View File

@ -12,12 +12,13 @@ import (
"github.com/bwmarrin/discordgo"
"layeh.com/gumble/gumble"
"layeh.com/gumble/gumbleutil"
)
//BridgeState manages dynamic information about the bridge during runtime
type BridgeState struct {
ActiveConn chan bool
Connected bool
Mode bridgeMode
Client *gumble.Client
DiscordUsers map[string]bool
MumbleUsers map[string]bool
@ -26,7 +27,7 @@ type BridgeState struct {
AutoChan chan bool
}
func startBridge(discord *discordgo.Session, discordGID string, discordCID string, config *gumble.Config, mumbleAddr string, mumbleInsecure bool, die chan bool) {
func startBridge(discord *discordgo.Session, discordGID string, discordCID string, l *Listener, die chan bool) {
dgv, err := discord.ChannelVoiceJoin(discordGID, discordCID, false, false)
if err != nil {
log.Println(err)
@ -43,21 +44,18 @@ func startBridge(discord *discordgo.Session, discordGID string, discordCID strin
}
var tlsConfig tls.Config
if mumbleInsecure {
if l.BridgeConf.MumbleInsecure {
tlsConfig.InsecureSkipVerify = true
}
config.Attach(gumbleutil.Listener{
Connect: mumbleConnect,
UserChange: mumbleUserChange,
})
mumble, err := gumble.DialWithDialer(new(net.Dialer), mumbleAddr, config, &tlsConfig)
mumble, err := gumble.DialWithDialer(new(net.Dialer), l.BridgeConf.MumbleAddr, l.BridgeConf.Config, &tlsConfig)
if err != nil {
log.Println(err)
return
}
defer mumble.Disconnect()
Bridge.Client = mumble
l.Bridge.Client = mumble
// Shared Channels
// Shared channels pass PCM information in 10ms chunks [480]int16
var toMumble = mumble.AudioOutgoing()
@ -68,7 +66,7 @@ func startBridge(discord *discordgo.Session, discordGID string, discordCID strin
// Start Passing Between
// Mumble
go m.fromMumbleMixer(toDiscord, die)
det := config.AudioListeners.Attach(m)
det := l.BridgeConf.Config.AudioListeners.Attach(m)
//Discord
go discordReceivePCM(dgv, die)
@ -100,28 +98,9 @@ func startBridge(discord *discordgo.Session, discordGID string, discordCID strin
}
}
}()
//Setup initial discord state
g, err := discord.State.Guild(discordGID)
if err != nil {
log.Println("error finding guild")
panic(err)
}
for _, vs := range g.VoiceStates {
if vs.ChannelID == discordCID {
Bridge.DiscordUserCount = Bridge.DiscordUserCount + 1
u, err := discord.User(vs.UserID)
if err != nil {
log.Println("error looking up username")
continue
}
Bridge.DiscordUsers[u.Username] = true
Bridge.Client.Do(func() {
Bridge.Client.Self.Channel.Send(fmt.Sprintf("%v has joined Discord channel\n", u.Username), false)
})
}
}
Bridge.Connected = true
l.ConnectedLock.Lock()
l.Bridge.Connected = true
l.ConnectedLock.Unlock()
select {
case sig := <-c:
@ -133,15 +112,16 @@ func startBridge(discord *discordgo.Session, discordGID string, discordCID strin
close(die)
close(m.Close)
close(toMumble)
Bridge.Connected = false
Bridge.Client = nil
Bridge.MumbleUserCount = 0
Bridge.DiscordUserCount = 0
Bridge.DiscordUsers = make(map[string]bool)
l.Bridge.Connected = false
l.Bridge.Client = nil
l.Bridge.MumbleUserCount = 0
l.Bridge.MumbleUsers = make(map[string]bool)
l.Bridge.DiscordUserCount = 0
l.Bridge.DiscordUsers = make(map[string]bool)
}
}
func discordStatusUpdate(dg *discordgo.Session, host, port string) {
func discordStatusUpdate(dg *discordgo.Session, host, port string, l *Listener) {
status := ""
curr := 0
m, _ := time.ParseDuration("30s")
@ -153,48 +133,56 @@ func discordStatusUpdate(dg *discordgo.Session, host, port string) {
log.Printf("error pinging mumble server %v\n", err)
dg.UpdateListeningStatus("an error pinging mumble")
} else {
l.UserCountLock.Lock()
l.ConnectedLock.Lock()
curr = resp.ConnectedUsers
if Bridge.Connected {
if l.Bridge.Connected {
curr = curr - 1
}
if curr != Bridge.MumbleUserCount {
Bridge.MumbleUserCount = curr
if curr != l.Bridge.MumbleUserCount {
l.Bridge.MumbleUserCount = curr
}
if curr == 0 {
status = ""
} else {
if len(Bridge.MumbleUsers) > 0 {
status = fmt.Sprintf("%v/%v users in Mumble\n", len(Bridge.MumbleUsers), curr)
if len(l.Bridge.MumbleUsers) > 0 {
status = fmt.Sprintf("%v/%v users in Mumble\n", len(l.Bridge.MumbleUsers), curr)
} else {
status = fmt.Sprintf("%v users in Mumble\n", curr)
}
}
l.ConnectedLock.Unlock()
l.UserCountLock.Unlock()
dg.UpdateListeningStatus(status)
}
}
}
func AutoBridge(s *discordgo.Session) {
//AutoBridge starts a goroutine to check the number of users in discord and mumble
//when there is at least one user on both, starts up the bridge
//when there are no users on either side, kills the bridge
func AutoBridge(s *discordgo.Session, l *Listener) {
log.Println("beginning auto mode")
for {
select {
default:
case <-Bridge.AutoChan:
case <-l.Bridge.AutoChan:
log.Println("ending automode")
return
}
time.Sleep(3 * time.Second)
if !Bridge.Connected && Bridge.MumbleUserCount > 0 && Bridge.DiscordUserCount > 0 {
l.UserCountLock.Lock()
if !l.Bridge.Connected && l.Bridge.MumbleUserCount > 0 && l.Bridge.DiscordUserCount > 0 {
log.Println("users detected in mumble and discord, bridging")
die := make(chan bool)
Bridge.ActiveConn = die
go startBridge(s, BridgeConf.GID, BridgeConf.CID, BridgeConf.Config, BridgeConf.MumbleAddr, BridgeConf.MumbleInsecure, die)
l.Bridge.ActiveConn = die
go startBridge(s, l.BridgeConf.GID, l.BridgeConf.CID, l, die)
}
if Bridge.Connected && Bridge.MumbleUserCount == 0 && Bridge.DiscordUserCount <= 1 {
if l.Bridge.Connected && l.Bridge.MumbleUserCount == 0 && l.Bridge.DiscordUserCount <= 1 {
log.Println("no one online, killing bridge")
Bridge.ActiveConn <- true
MumbleReset()
DiscordReset()
l.Bridge.ActiveConn <- true
l.Bridge.ActiveConn = nil
}
l.UserCountLock.Unlock()
}
}

11
config.go
View File

@ -10,20 +10,21 @@ import (
"layeh.com/gumble/gumble"
)
type BridgeMode int
type bridgeMode int
const (
BridgeModeAuto BridgeMode = iota
BridgeModeManual
BridgeModeConstant
bridgeModeAuto bridgeMode = iota
bridgeModeManual
bridgeModeConstant
)
//BridgeConfig holds configuration information set at startup
//It should not change during runtime
type BridgeConfig struct {
Config *gumble.Config
MumbleAddr string
MumbleInsecure bool
MumbleChannel string
Mode BridgeMode
Command string
GID string
CID string

4
discord.go
View File

@ -22,10 +22,6 @@ var discordMutex sync.Mutex
var discordMixerMutex sync.Mutex
var fromDiscordMap = make(map[uint32]fromDiscord)
func DiscordReset() {
fromDiscordMap = make(map[uint32]fromDiscord)
}
// OnError gets called by dgvoice when an error is encountered.
// By default logs to STDERR
var OnError = func(str string, err error) {

198
handlers.go
View File

@ -4,19 +4,58 @@ import (
"fmt"
"log"
"strings"
"sync"
"time"
"github.com/bwmarrin/discordgo"
"layeh.com/gumble/gumble"
)
func ready(s *discordgo.Session, event *discordgo.Ready) {
log.Println("READY event registered")
//Listener holds references to the current BridgeConf
//and BridgeState for use by the event handlers
type Listener struct {
BridgeConf *BridgeConfig
Bridge *BridgeState
UserCountLock *sync.Mutex
ConnectedLock *sync.Mutex
}
func messageCreate(s *discordgo.Session, m *discordgo.MessageCreate) {
func (l *Listener) ready(s *discordgo.Session, event *discordgo.Ready) {
log.Println("READY event registered")
//Setup initial discord state
var g *discordgo.Guild
g = nil
for _, i := range event.Guilds {
if i.ID == l.BridgeConf.GID {
g = i
}
}
if g == nil {
log.Println("bad guild on READY")
return
}
for _, vs := range g.VoiceStates {
if vs.ChannelID == l.BridgeConf.CID {
l.UserCountLock.Lock()
l.Bridge.DiscordUserCount = l.Bridge.DiscordUserCount + 1
u, err := s.User(vs.UserID)
if err != nil {
log.Println("error looking up username")
}
l.Bridge.DiscordUsers[u.Username] = true
if l.Bridge.Connected {
l.Bridge.Client.Do(func() {
l.Bridge.Client.Self.Channel.Send(fmt.Sprintf("%v has joined Discord channel\n", u.Username), false)
})
}
l.UserCountLock.Unlock()
}
}
}
if BridgeConf.Mode == BridgeModeConstant {
func (l *Listener) messageCreate(s *discordgo.Session, m *discordgo.MessageCreate) {
if l.Bridge.Mode == bridgeModeConstant {
return
}
@ -24,108 +63,72 @@ func messageCreate(s *discordgo.Session, m *discordgo.MessageCreate) {
if m.Author.ID == s.State.User.ID {
return
}
prefix := "!" + BridgeConf.Command
// Find the channel that the message came from.
c, err := s.State.Channel(m.ChannelID)
if err != nil {
// Could not find channel.
return
}
// Find the guild for that channel.
g, err := s.State.Guild(c.GuildID)
if err != nil {
// Could not find guild.
return
}
prefix := "!" + l.BridgeConf.Command
if strings.HasPrefix(m.Content, prefix+" link") {
// Find the channel that the message came from.
c, err := s.State.Channel(m.ChannelID)
if err != nil {
// Could not find channel.
return
}
// Find the guild for that channel.
g, err := s.State.Guild(c.GuildID)
if err != nil {
// Could not find guild.
return
}
// Look for the message sender in that guild's current voice states.
for _, vs := range g.VoiceStates {
if vs.UserID == m.Author.ID {
log.Printf("Trying to join GID %v and VID %v\n", g.ID, vs.ChannelID)
die := make(chan bool)
Bridge.ActiveConn = die
go startBridge(s, g.ID, vs.ChannelID, BridgeConf.Config, BridgeConf.MumbleAddr, BridgeConf.MumbleInsecure, die)
l.Bridge.ActiveConn = die
go startBridge(s, g.ID, vs.ChannelID, l, die)
return
}
}
}
if strings.HasPrefix(m.Content, prefix+" unlink") {
// Find the channel that the message came from.
c, err := s.State.Channel(m.ChannelID)
if err != nil {
// Could not find channel.
return
}
// Find the guild for that channel.
g, err := s.State.Guild(c.GuildID)
if err != nil {
// Could not find guild.
return
}
// Look for the message sender in that guild's current voice states.
for _, vs := range g.VoiceStates {
if vs.UserID == m.Author.ID {
log.Printf("Trying to leave GID %v and VID %v\n", g.ID, vs.ChannelID)
Bridge.ActiveConn <- true
Bridge.ActiveConn = nil
MumbleReset()
DiscordReset()
l.Bridge.ActiveConn <- true
l.Bridge.ActiveConn = nil
return
}
}
}
if strings.HasPrefix(m.Content, prefix+" refresh") {
// Find the channel that the message came from.
c, err := s.State.Channel(m.ChannelID)
if err != nil {
// Could not find channel.
return
}
// Find the guild for that channel.
g, err := s.State.Guild(c.GuildID)
if err != nil {
// Could not find guild.
return
}
// Look for the message sender in that guild's current voice states.
for _, vs := range g.VoiceStates {
if vs.UserID == m.Author.ID {
log.Printf("Trying to refresh GID %v and VID %v\n", g.ID, vs.ChannelID)
Bridge.ActiveConn <- true
MumbleReset()
DiscordReset()
l.Bridge.ActiveConn <- true
time.Sleep(5 * time.Second)
Bridge.ActiveConn = make(chan bool)
go startBridge(s, g.ID, vs.ChannelID, BridgeConf.Config, BridgeConf.MumbleAddr, BridgeConf.MumbleInsecure, Bridge.ActiveConn)
l.Bridge.ActiveConn = make(chan bool)
go startBridge(s, g.ID, vs.ChannelID, l, l.Bridge.ActiveConn)
return
}
}
}
if strings.HasPrefix(m.Content, prefix+" auto") {
if BridgeConf.Mode != BridgeModeAuto {
BridgeConf.Mode = BridgeModeAuto
Bridge.AutoChan = make(chan bool)
go AutoBridge(s)
if l.Bridge.Mode != bridgeModeAuto {
l.Bridge.Mode = bridgeModeAuto
l.Bridge.AutoChan = make(chan bool)
go AutoBridge(s, l)
} else {
Bridge.AutoChan <- true
BridgeConf.Mode = BridgeModeManual
l.Bridge.AutoChan <- true
l.Bridge.Mode = bridgeModeManual
}
}
}
func guildCreate(s *discordgo.Session, event *discordgo.GuildCreate) {
func (l *Listener) guildCreate(s *discordgo.Session, event *discordgo.GuildCreate) {
if event.Guild.Unavailable {
return
@ -139,27 +142,32 @@ func guildCreate(s *discordgo.Session, event *discordgo.GuildCreate) {
}
}
func voiceUpdate(s *discordgo.Session, event *discordgo.VoiceStateUpdate) {
if event.GuildID == BridgeConf.GID {
if event.ChannelID == BridgeConf.CID {
func (l *Listener) voiceUpdate(s *discordgo.Session, event *discordgo.VoiceStateUpdate) {
l.UserCountLock.Lock()
if event.GuildID == l.BridgeConf.GID {
if event.ChannelID == l.BridgeConf.CID {
//get user
u, err := s.User(event.UserID)
if err != nil {
log.Printf("error looking up user for uid %v", event.UserID)
}
//check to see if actually new user
if Bridge.DiscordUsers[u.Username] {
if l.Bridge.DiscordUsers[u.Username] {
//not actually new user
l.UserCountLock.Unlock()
return
}
log.Println("user joined watched discord channel")
if Bridge.Connected {
Bridge.Client.Do(func() {
Bridge.Client.Self.Channel.Send(fmt.Sprintf("%v has joined Discord channel\n", u.Username), false)
l.ConnectedLock.Lock()
if l.Bridge.Connected {
l.Bridge.Client.Do(func() {
l.Bridge.Client.Self.Channel.Send(fmt.Sprintf("%v has joined Discord channel\n", u.Username), false)
})
}
Bridge.DiscordUsers[u.Username] = true
Bridge.DiscordUserCount = Bridge.DiscordUserCount + 1
l.ConnectedLock.Unlock()
l.Bridge.DiscordUsers[u.Username] = true
l.Bridge.DiscordUserCount = l.Bridge.DiscordUserCount + 1
l.UserCountLock.Unlock()
}
if event.ChannelID == "" {
//leave event, trigger recount of active users
@ -167,56 +175,62 @@ func voiceUpdate(s *discordgo.Session, event *discordgo.VoiceStateUpdate) {
g, err := s.State.Guild(event.GuildID)
if err != nil {
// Could not find guild.
l.UserCountLock.Unlock()
return
}
// Look for current voice states in watched channel
count := 0
for _, vs := range g.VoiceStates {
if vs.ChannelID == BridgeConf.CID {
if vs.ChannelID == l.BridgeConf.CID {
count = count + 1
}
}
if Bridge.DiscordUserCount > count {
if l.Bridge.DiscordUserCount > count {
u, err := s.User(event.UserID)
if err != nil {
log.Printf("error looking up user for uid %v", event.UserID)
}
delete(Bridge.DiscordUsers, u.Username)
delete(l.Bridge.DiscordUsers, u.Username)
log.Println("user left watched discord channel")
if Bridge.Connected {
Bridge.Client.Do(func() {
Bridge.Client.Self.Channel.Send(fmt.Sprintf("%v has left Discord channel\n", u.Username), false)
l.ConnectedLock.Lock()
if l.Bridge.Connected {
l.Bridge.Client.Do(func() {
l.Bridge.Client.Self.Channel.Send(fmt.Sprintf("%v has left Discord channel\n", u.Username), false)
})
}
Bridge.DiscordUserCount = count
l.ConnectedLock.Unlock()
l.Bridge.DiscordUserCount = count
}
l.UserCountLock.Unlock()
}
}
return
}
func mumbleConnect(e *gumble.ConnectEvent) {
if BridgeConf.MumbleChannel != "" {
func (l *Listener) mumbleConnect(e *gumble.ConnectEvent) {
if l.BridgeConf.MumbleChannel != "" {
//join specified channel
startingChannel := e.Client.Channels.Find(BridgeConf.MumbleChannel)
startingChannel := e.Client.Channels.Find(l.BridgeConf.MumbleChannel)
if startingChannel != nil {
e.Client.Self.Move(startingChannel)
}
}
}
func mumbleUserChange(e *gumble.UserChangeEvent) {
func (l *Listener) mumbleUserChange(e *gumble.UserChangeEvent) {
l.UserCountLock.Lock()
if e.Type.Has(gumble.UserChangeConnected) || e.Type.Has(gumble.UserChangeChannel) || e.Type.Has(gumble.UserChangeDisconnected) {
Bridge.MumbleUsers = make(map[string]bool)
for _, user := range Bridge.Client.Self.Channel.Users {
l.Bridge.MumbleUsers = make(map[string]bool)
for _, user := range l.Bridge.Client.Self.Channel.Users {
//note, this might be too slow for really really big channels?
//event listeners block while processing
//also probably bad to rebuild the set every user change.
if user.Name != Bridge.Client.Self.Name {
Bridge.MumbleUsers[user.Name] = true
if user.Name != l.Bridge.Client.Self.Name {
l.Bridge.MumbleUsers[user.Name] = true
}
}
}
l.UserCountLock.Unlock()
}

84
main.go
View File

@ -6,18 +6,17 @@ import (
"os"
"os/signal"
"strconv"
"sync"
"syscall"
"time"
"github.com/bwmarrin/discordgo"
"github.com/joho/godotenv"
"layeh.com/gumble/gumble"
"layeh.com/gumble/gumbleutil"
_ "layeh.com/gumble/opus"
)
var BridgeConf *BridgeConfig
var Bridge *BridgeState
func main() {
godotenv.Load()
@ -59,24 +58,56 @@ func main() {
// log.Println("Unable to set priority. ", err)
//}
// DISCORD Setup
//Connect to discord
discord, err := discordgo.New("Bot " + *discordToken)
if err != nil {
log.Println(err)
return
}
// Mumble setup
config := gumble.NewConfig()
config.Username = *mumbleUsername
config.Password = *mumblePassword
config.AudioInterval = time.Millisecond * 10
// Bridge setup
BridgeConf := &BridgeConfig{
Config: config,
MumbleAddr: *mumbleAddr + ":" + strconv.Itoa(*mumblePort),
MumbleInsecure: *mumbleInsecure,
MumbleChannel: *mumbleChannel,
Command: *discordCommand,
GID: *discordGID,
CID: *discordCID,
}
Bridge := &BridgeState{
ActiveConn: make(chan bool),
Connected: false,
MumbleUserCount: 0,
DiscordUserCount: 0,
DiscordUsers: make(map[string]bool),
MumbleUsers: make(map[string]bool),
}
ul := &sync.Mutex{}
cl := &sync.Mutex{}
l := &Listener{BridgeConf, Bridge, ul, cl}
// Discord setup
// Open Websocket
discord.LogLevel = 2
discord.StateEnabled = true
discord.Identify.Intents = discordgo.MakeIntent(discordgo.IntentsAllWithoutPrivileged)
// register handlers
discord.AddHandler(ready)
discord.AddHandler(messageCreate)
discord.AddHandler(guildCreate)
discord.AddHandler(voiceUpdate)
discord.AddHandler(l.ready)
discord.AddHandler(l.messageCreate)
discord.AddHandler(l.guildCreate)
discord.AddHandler(l.voiceUpdate)
err = discord.Open()
l.BridgeConf.Config.Attach(gumbleutil.Listener{
Connect: l.mumbleConnect,
UserChange: l.mumbleUserChange,
})
if err != nil {
log.Println(err)
return
@ -85,49 +116,26 @@ func main() {
log.Println("Discord Bot Connected")
log.Printf("Discord bot looking for command !%v", *discordCommand)
// Mumble setup
config := gumble.NewConfig()
config.Username = *mumbleUsername
config.Password = *mumblePassword
config.AudioInterval = time.Millisecond * 10
// Bridge setup
BridgeConf = &BridgeConfig{
Config: config,
MumbleAddr: *mumbleAddr + ":" + strconv.Itoa(*mumblePort),
MumbleInsecure: *mumbleInsecure,
MumbleChannel: *mumbleChannel,
Mode: -1,
Command: *discordCommand,
GID: *discordGID,
CID: *discordCID,
}
Bridge = &BridgeState{
ActiveConn: make(chan bool),
Connected: false,
MumbleUserCount: 0,
DiscordUserCount: 0,
DiscordUsers: make(map[string]bool),
}
switch *mode {
case "auto":
log.Println("bridge starting in automatic mode")
Bridge.AutoChan = make(chan bool)
BridgeConf.Mode = BridgeModeAuto
go AutoBridge(discord)
Bridge.Mode = bridgeModeAuto
go AutoBridge(discord, l)
case "manual":
log.Println("bridge starting in manual mode")
BridgeConf.Mode = BridgeModeManual
Bridge.Mode = bridgeModeManual
case "constant":
log.Println("bridge starting in constant mode")
BridgeConf.Mode = BridgeModeConstant
go startBridge(discord, *discordGID, *discordCID, config, BridgeConf.MumbleAddr, *mumbleInsecure, make(chan bool))
Bridge.Mode = bridgeModeConstant
go startBridge(discord, *discordGID, *discordCID, l, make(chan bool))
default:
discord.Close()
log.Fatalln("invalid bridge mode set")
}
go discordStatusUpdate(discord, *mumbleAddr, strconv.Itoa(*mumblePort))
go discordStatusUpdate(discord, *mumbleAddr, strconv.Itoa(*mumblePort), l)
sc := make(chan os.Signal, 1)
signal.Notify(sc, syscall.SIGINT, syscall.SIGTERM, os.Interrupt, os.Kill)
<-sc

5
mumble.go
View File

@ -18,11 +18,6 @@ type MumbleDuplex struct {
Close chan bool
}
func MumbleReset() {
fromMumbleArr = []chan gumble.AudioBuffer{}
mumbleStreamingArr = []bool{}
}
// OnAudioStream - Spawn routines to handle incoming packets
func (m MumbleDuplex) OnAudioStream(e *gumble.AudioStreamEvent) {