uwaru/matterbridge
1
0
Fork 0
forked from lug/matterbridge
Code Pull Requests Activity

Update vendor bwmarrin/discordgo

Browse Source
This commit is contained in:
Wim
2018-02-14 22:22:35 +01:00
parent 2522158127
commit fd0fe3390b
13 changed files with 328 additions and 200 deletions
Download Patch File Download Diff File Expand all files Collapse all files

255
vendor/github.com/bwmarrin/discordgo/wsapi.go generated vendored
View File

@@ -15,6 +15,7 @@ import (
"compress/zlib"
"encoding/json"
"errors"
"fmt"
"io"
"net/http"
"runtime"
@@ -45,19 +46,114 @@ type resumePacket struct {
} `json:"d"`
}
// Open opens a websocket connection to Discord.
func (s *Session) Open() (err error) {
// Open creates a websocket connection to Discord.
// See: https://discordapp.com/developers/docs/topics/gateway#connecting
func (s *Session) Open() error {
s.log(LogInformational, "called")
var err error
// Prevent Open or other major Session functions from
// being called while Open is still running.
s.Lock()
defer func() {
defer s.Unlock()
// If the websock is already open, bail out here.
if s.wsConn != nil {
return ErrWSAlreadyOpen
}
// Get the gateway to use for the Websocket connection
if s.gateway == "" {
s.gateway, err = s.Gateway()
if err != nil {
s.Unlock()
return err
}
// Add the version and encoding to the URL
s.gateway = s.gateway + "?v=" + APIVersion + "&encoding=json"
}
// Connect to the Gateway
s.log(LogInformational, "connecting to gateway %s", s.gateway)
header := http.Header{}
header.Add("accept-encoding", "zlib")
s.wsConn, _, err = websocket.DefaultDialer.Dial(s.gateway, header)
if err != nil {
s.log(LogWarning, "error connecting to gateway %s, %s", s.gateway, err)
s.gateway = "" // clear cached gateway
s.wsConn = nil // Just to be safe.
return err
}
defer func() {
// because of this, all code below must set err to the error
// when exiting with an error :) Maybe someone has a better
// way :)
if err != nil {
s.wsConn.Close()
s.wsConn = nil
}
}()
// The first response from Discord should be an Op 10 (Hello) Packet.
// When processed by onEvent the heartbeat goroutine will be started.
mt, m, err := s.wsConn.ReadMessage()
if err != nil {
return err
}
e, err := s.onEvent(mt, m)
if err != nil {
return err
}
if e.Operation != 10 {
err = fmt.Errorf("expecting Op 10, got Op %d instead", e.Operation)
return err
}
s.log(LogInformational, "Op 10 Hello Packet received from Discord")
s.LastHeartbeatAck = time.Now().UTC()
var h helloOp
if err = json.Unmarshal(e.RawData, &h); err != nil {
err = fmt.Errorf("error unmarshalling helloOp, %s", err)
return err
}
// Now we send either an Op 2 Identity if this is a brand new
// connection or Op 6 Resume if we are resuming an existing connection.
sequence := atomic.LoadInt64(s.sequence)
if s.sessionID == "" && sequence == 0 {
// Send Op 2 Identity Packet
err = s.identify()
if err != nil {
err = fmt.Errorf("error sending identify packet to gateway, %s, %s", s.gateway, err)
return err
}
} else {
// Send Op 6 Resume Packet
p := resumePacket{}
p.Op = 6
p.Data.Token = s.Token
p.Data.SessionID = s.sessionID
p.Data.Sequence = sequence
s.log(LogInformational, "sending resume packet to gateway")
s.wsMutex.Lock()
err = s.wsConn.WriteJSON(p)
s.wsMutex.Unlock()
if err != nil {
err = fmt.Errorf("error sending gateway resume packet, %s, %s", s.gateway, err)
return err
}
}
// A basic state is a hard requirement for Voice.
// We create it here so the below READY/RESUMED packet can populate
// the state :)
// XXX: Move to New() func?
if s.State == nil {
state := NewState()
state.TrackChannels = false
@@ -68,77 +164,42 @@ func (s *Session) Open() (err error) {
s.State = state
}
if s.wsConn != nil {
err = ErrWSAlreadyOpen
return
// Now Discord should send us a READY or RESUMED packet.
mt, m, err = s.wsConn.ReadMessage()
if err != nil {
return err
}
e, err = s.onEvent(mt, m)
if err != nil {
return err
}
if e.Type != `READY` && e.Type != `RESUMED` {
// This is not fatal, but it does not follow their API documentation.
s.log(LogWarning, "Expected READY/RESUMED, instead got:\n%#v\n", e)
}
s.log(LogInformational, "First Packet:\n%#v\n", e)
s.log(LogInformational, "We are now connected to Discord, emitting connect event")
s.handleEvent(connectEventType, &Connect{})
// A VoiceConnections map is a hard requirement for Voice.
// XXX: can this be moved to when opening a voice connection?
if s.VoiceConnections == nil {
s.log(LogInformational, "creating new VoiceConnections map")
s.VoiceConnections = make(map[string]*VoiceConnection)
}
// Get the gateway to use for the Websocket connection
if s.gateway == "" {
s.gateway, err = s.Gateway()
if err != nil {
return
}
// Add the version and encoding to the URL
s.gateway = s.gateway + "?v=" + APIVersion + "&encoding=json"
}
header := http.Header{}
header.Add("accept-encoding", "zlib")
s.log(LogInformational, "connecting to gateway %s", s.gateway)
s.wsConn, _, err = websocket.DefaultDialer.Dial(s.gateway, header)
if err != nil {
s.log(LogWarning, "error connecting to gateway %s, %s", s.gateway, err)
s.gateway = "" // clear cached gateway
// TODO: should we add a retry block here?
return
}
sequence := atomic.LoadInt64(s.sequence)
if s.sessionID != "" && sequence > 0 {
p := resumePacket{}
p.Op = 6
p.Data.Token = s.Token
p.Data.SessionID = s.sessionID
p.Data.Sequence = sequence
s.log(LogInformational, "sending resume packet to gateway")
err = s.wsConn.WriteJSON(p)
if err != nil {
s.log(LogWarning, "error sending gateway resume packet, %s, %s", s.gateway, err)
return
}
} else {
err = s.identify()
if err != nil {
s.log(LogWarning, "error sending gateway identify packet, %s, %s", s.gateway, err)
return
}
}
// Create listening outside of listen, as it needs to happen inside the mutex
// lock.
// Create listening chan outside of listen, as it needs to happen inside the
// mutex lock and needs to exist before calling heartbeat and listen
// go rountines.
s.listening = make(chan interface{})
// Start sending heartbeats and reading messages from Discord.
go s.heartbeat(s.wsConn, s.listening, h.HeartbeatInterval)
go s.listen(s.wsConn, s.listening)
s.LastHeartbeatAck = time.Now().UTC()
s.Unlock()
s.log(LogInformational, "emit connect event")
s.handleEvent(connectEventType, &Connect{})
s.log(LogInformational, "exiting")
return
return nil
}
// listen polls the websocket connection for events, it will stop when the
@@ -249,7 +310,8 @@ func (s *Session) heartbeat(wsConn *websocket.Conn, listening <-chan interface{}
}
}
type updateStatusData struct {
// UpdateStatusData ia provided to UpdateStatusComplex()
type UpdateStatusData struct {
IdleSince *int `json:"since"`
Game *Game `json:"game"`
AFK bool `json:"afk"`
@@ -258,7 +320,7 @@ type updateStatusData struct {
type updateStatusOp struct {
Op int `json:"op"`
Data updateStatusData `json:"d"`
Data UpdateStatusData `json:"d"`
}
// UpdateStreamingStatus is used to update the user's streaming status.
@@ -270,13 +332,7 @@ func (s *Session) UpdateStreamingStatus(idle int, game string, url string) (err
s.log(LogInformational, "called")
s.RLock()
defer s.RUnlock()
if s.wsConn == nil {
return ErrWSNotFound
}
usd := updateStatusData{
usd := UpdateStatusData{
Status: "online",
}
@@ -285,9 +341,9 @@ func (s *Session) UpdateStreamingStatus(idle int, game string, url string) (err
}
if game != "" {
gameType := 0
gameType := GameTypeGame
if url != "" {
gameType = 1
gameType = GameTypeStreaming
}
usd.Game = &Game{
Name: game,
@@ -296,6 +352,18 @@ func (s *Session) UpdateStreamingStatus(idle int, game string, url string) (err
}
}
return s.UpdateStatusComplex(usd)
}
// UpdateStatusComplex allows for sending the raw status update data untouched by discordgo.
func (s *Session) UpdateStatusComplex(usd UpdateStatusData) (err error) {
s.RLock()
defer s.RUnlock()
if s.wsConn == nil {
return ErrWSNotFound
}
s.wsMutex.Lock()
err = s.wsConn.WriteJSON(updateStatusOp{3, usd})
s.wsMutex.Unlock()
@@ -357,9 +425,7 @@ func (s *Session) RequestGuildMembers(guildID, query string, limit int) (err err
//
// If you use the AddHandler() function to register a handler for the
// "OnEvent" event then all events will be passed to that handler.
//
// TODO: You may also register a custom event handler entirely using...
func (s *Session) onEvent(messageType int, message []byte) {
func (s *Session) onEvent(messageType int, message []byte) (*Event, error) {
var err error
var reader io.Reader
@@ -371,7 +437,7 @@ func (s *Session) onEvent(messageType int, message []byte) {
z, err2 := zlib.NewReader(reader)
if err2 != nil {
s.log(LogError, "error uncompressing websocket message, %s", err)
return
return nil, err2
}
defer func() {
@@ -389,7 +455,7 @@ func (s *Session) onEvent(messageType int, message []byte) {
decoder := json.NewDecoder(reader)
if err = decoder.Decode(&e); err != nil {
s.log(LogError, "error decoding websocket message, %s", err)
return
return e, err
}
s.log(LogDebug, "Op: %d, Seq: %d, Type: %s, Data: %s\n\n", e.Operation, e.Sequence, e.Type, string(e.RawData))
@@ -403,10 +469,10 @@ func (s *Session) onEvent(messageType int, message []byte) {
s.wsMutex.Unlock()
if err != nil {
s.log(LogError, "error sending heartbeat in response to Op1")
return
return e, err
}
return
return e, nil
}
// Reconnect
@@ -415,7 +481,7 @@ func (s *Session) onEvent(messageType int, message []byte) {
s.log(LogInformational, "Closing and reconnecting in response to Op7")
s.Close()
s.reconnect()
return
return e, nil
}
// Invalid Session
@@ -427,20 +493,15 @@ func (s *Session) onEvent(messageType int, message []byte) {
err = s.identify()
if err != nil {
s.log(LogWarning, "error sending gateway identify packet, %s, %s", s.gateway, err)
return
return e, err
}
return
return e, nil
}
if e.Operation == 10 {
var h helloOp
if err = json.Unmarshal(e.RawData, &h); err != nil {
s.log(LogError, "error unmarshalling helloOp, %s", err)
} else {
go s.heartbeat(s.wsConn, s.listening, h.HeartbeatInterval)
}
return
// Op10 is handled by Open()
return e, nil
}
if e.Operation == 11 {
@@ -448,7 +509,7 @@ func (s *Session) onEvent(messageType int, message []byte) {
s.LastHeartbeatAck = time.Now().UTC()
s.Unlock()
s.log(LogInformational, "got heartbeat ACK")
return
return e, nil
}
// Do not try to Dispatch a non-Dispatch Message
@@ -456,7 +517,7 @@ func (s *Session) onEvent(messageType int, message []byte) {
// But we probably should be doing something with them.
// TEMP
s.log(LogWarning, "unknown Op: %d, Seq: %d, Type: %s, Data: %s, message: %s", e.Operation, e.Sequence, e.Type, string(e.RawData), string(message))
return
return e, nil
}
// Store the message sequence
@@ -485,6 +546,8 @@ func (s *Session) onEvent(messageType int, message []byte) {
// For legacy reasons, we send the raw event also, this could be useful for handling unknown events.
s.handleEvent(eventEventType, e)
return e, nil
}
// ------------------------------------------------------------------------------------------------
@@ -610,7 +673,7 @@ func (s *Session) onVoiceServerUpdate(st *VoiceServerUpdate) {
voice.GuildID = st.GuildID
voice.Unlock()
// Open a conenction to the voice server
// Open a connection to the voice server
err := voice.open()
if err != nil {
s.log(LogError, "onVoiceServerUpdate voice.open, %s", err)