/
qqbridge.go
440 lines (389 loc) · 12.8 KB
/
qqbridge.go
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package internal
import (
"context"
"errors"
"fmt"
"net/http"
"net/url"
"os"
"strings"
"sync"
"time"
"github.com/Mrs4s/MiraiGo/wrapper"
"github.com/duo/matrix-qq/internal/config"
"github.com/duo/matrix-qq/internal/database"
"github.com/duo/matrix-qq/internal/types"
"maunium.net/go/mautrix"
"maunium.net/go/mautrix/appservice"
"maunium.net/go/mautrix/bridge"
"maunium.net/go/mautrix/bridge/bridgeconfig"
"maunium.net/go/mautrix/bridge/commands"
"maunium.net/go/mautrix/bridge/status"
"maunium.net/go/mautrix/event"
"maunium.net/go/mautrix/format"
"maunium.net/go/mautrix/id"
)
type QQBridge struct {
bridge.Bridge
Config *config.Config
DB *database.Database
Formatter *Formatter
ExampleConfig string
usersByMXID map[id.UserID]*User
usersByUsername map[string]*User
usersByUin map[string]*User
usersLock sync.Mutex
managementRooms map[id.RoomID]*User
portalsByMXID map[id.RoomID]*Portal
portalsByUID map[database.PortalKey]*Portal
portalsLock sync.Mutex
puppets map[types.UID]*Puppet
puppetsByCustomMXID map[id.UserID]*Puppet
puppetsLock sync.Mutex
WebsocketHandler *WebsocketCommandHandler
stopping bool
stopPinger chan struct{}
shortCircuitReconnectBackoff chan struct{}
websocketStarted chan struct{}
websocketStopped chan struct{}
}
func NewQQBridge(exampleConfig string) *QQBridge {
return &QQBridge{
ExampleConfig: exampleConfig,
usersByMXID: make(map[id.UserID]*User),
usersByUsername: make(map[string]*User),
usersByUin: make(map[string]*User),
managementRooms: make(map[id.RoomID]*User),
portalsByMXID: make(map[id.RoomID]*Portal),
portalsByUID: make(map[database.PortalKey]*Portal),
puppets: make(map[types.UID]*Puppet),
puppetsByCustomMXID: make(map[id.UserID]*Puppet),
shortCircuitReconnectBackoff: make(chan struct{}),
websocketStarted: make(chan struct{}),
websocketStopped: make(chan struct{}),
}
}
func (br *QQBridge) GetExampleConfig() string {
return br.ExampleConfig
}
func (br *QQBridge) GetConfigPtr() interface{} {
br.Config = &config.Config{
BaseConfig: &br.Bridge.Config,
}
br.Config.BaseConfig.Bridge = &br.Config.Bridge
return br.Config
}
func (br *QQBridge) Init() {
br.CommandProcessor = commands.NewProcessor(&br.Bridge)
br.RegisterCommands()
br.EventProcessor.On(event.EphemeralEventPresence, br.HandlePresence)
br.DB = database.New(br.Bridge.DB, br.Log.Sub("Database"))
br.Formatter = NewFormatter(br)
br.WebsocketHandler = NewWebsocketCommandHandler(br)
if br.Config.Bridge.HomeserverProxy != "" {
if proxyUrl, err := url.Parse(br.Config.Bridge.HomeserverProxy); err != nil {
br.Log.Warnfln("Failed to parse bridge.hs_proxy: %v", err)
} else {
br.AS.HTTPClient.Transport = &http.Transport{Proxy: http.ProxyURL(proxyUrl)}
}
}
if br.Config.QQ.SignConfig.Server != "" {
if !strings.HasSuffix(br.Config.QQ.SignConfig.Server, "/") {
br.Config.QQ.SignConfig.Server += "/"
}
wrapper.DandelionEnergy = br.energy
wrapper.FekitGetSign = br.sign
}
}
func (br *QQBridge) Start() {
if br.Config.Homeserver.WSProxy != "" {
var startupGroup sync.WaitGroup
startupGroup.Add(1)
br.Log.Debugln("Starting application service websocket")
go br.startWebsocket(&startupGroup)
startupGroup.Wait()
br.stopPinger = make(chan struct{})
if br.Config.Homeserver.WSPingInterval > 0 {
go br.serverPinger()
}
} else {
if br.Config.AppService.Port == 0 {
br.Log.Fatalln("Both the websocket proxy and appservice listener are disabled, can't receive events")
os.Exit(23)
}
br.Log.Debugln("Websocket proxy not configured, not starting application service websocket")
}
go br.StartUsers()
}
type PingData struct {
Timestamp int64 `json:"timestamp"`
}
func (br *QQBridge) PingServer() (start, serverTs, end time.Time) {
if !br.AS.HasWebsocket() {
br.Log.Debugln("Received server ping request, but no websocket connected. Trying to short-circuit backoff sleep")
select {
case br.shortCircuitReconnectBackoff <- struct{}{}:
default:
br.Log.Warnfln("Failed to ping websocket: not connected and no backoff?")
return
}
select {
case <-br.websocketStarted:
case <-time.After(15 * time.Second):
if !br.AS.HasWebsocket() {
br.Log.Warnfln("Failed to ping websocket: didn't connect after 15 seconds of waiting")
return
}
}
}
start = time.Now()
var resp PingData
br.Log.Debugln("Pinging appservice websocket")
ctx, cancel := context.WithTimeout(context.Background(), 10*time.Second)
defer cancel()
err := br.AS.RequestWebsocket(ctx, &appservice.WebsocketRequest{
Command: "ping",
Data: &PingData{Timestamp: start.UnixMilli()},
}, &resp)
end = time.Now()
if err != nil {
br.Log.Warnfln("Websocket ping returned error in %s: %v", end.Sub(start), err)
br.AS.StopWebsocket(fmt.Errorf("websocket ping returned error in %s: %w", end.Sub(start), err))
} else {
serverTs = time.Unix(0, resp.Timestamp*int64(time.Millisecond))
br.Log.Debugfln("Websocket ping returned success in %s (request: %s, response: %s)", end.Sub(start), serverTs.Sub(start), end.Sub(serverTs))
}
return
}
func (br *QQBridge) serverPinger() {
interval := time.Duration(br.Config.Homeserver.WSPingInterval) * time.Second
clock := time.NewTicker(interval)
defer func() {
br.Log.Infofln("Websocket pinger stopped")
clock.Stop()
}()
br.Log.Infofln("Pinging websocket every %s", interval)
for {
select {
case <-clock.C:
br.PingServer()
case <-br.stopPinger:
return
}
if br.stopping {
return
}
}
}
func (br *QQBridge) Stop() {
for _, user := range br.usersByUsername {
br.Log.Debugln("Disconnecting", user.MXID)
user.unlockedDeleteConnection()
}
br.stopping = true
if br.Config.Homeserver.WSProxy != "" {
select {
case br.stopPinger <- struct{}{}:
default:
}
br.Log.Debugln("Stopping transaction websocket")
br.AS.StopWebsocket(appservice.ErrWebsocketManualStop)
br.Log.Debugln("Stopping event processor")
// Short-circuit reconnect backoff so the websocket loop exits even if it's disconnected
select {
case br.shortCircuitReconnectBackoff <- struct{}{}:
default:
}
select {
case <-br.websocketStopped:
case <-time.After(4 * time.Second):
br.Log.Warnln("Timed out waiting for websocket to close")
}
}
}
func (br *QQBridge) StartUsers() {
br.Log.Debugln("Starting users")
foundAnySessions := false
for _, user := range br.GetAllUsers() {
if !user.UID.IsEmpty() {
foundAnySessions = true
}
go user.Connect()
}
if !foundAnySessions {
br.SendGlobalBridgeState(status.BridgeState{StateEvent: status.StateUnconfigured}.Fill(nil))
}
br.Log.Debugln("Starting custom puppets")
for _, loopuppet := range br.GetAllPuppetsWithCustomMXID() {
go func(puppet *Puppet) {
puppet.log.Debugln("Starting custom puppet", puppet.CustomMXID)
err := puppet.StartCustomMXID(true)
if err != nil {
puppet.log.Errorln("Failed to start custom puppet:", err)
}
}(loopuppet)
}
}
func (br *QQBridge) CreatePrivatePortal(roomID id.RoomID, brInviter bridge.User, brGhost bridge.Ghost) {
inviter := brInviter.(*User)
puppet := brGhost.(*Puppet)
key := database.NewPortalKey(puppet.UID, inviter.UID)
portal := br.GetPortalByUID(key)
if len(portal.MXID) == 0 {
br.createPrivatePortalFromInvite(roomID, inviter, puppet, portal)
return
}
ok := portal.ensureUserInvited(inviter)
if !ok {
br.Log.Warnfln("Failed to invite %s to existing private chat portal %s with %s. Redirecting portal to new room...", inviter.MXID, portal.MXID, puppet.UID)
br.createPrivatePortalFromInvite(roomID, inviter, puppet, portal)
return
}
intent := puppet.DefaultIntent()
errorMessage := fmt.Sprintf("You already have a private chat portal with me at [%[1]s](https://matrix.to/#/%[1]s)", portal.MXID)
errorContent := format.RenderMarkdown(errorMessage, true, false)
_, _ = intent.SendMessageEvent(roomID, event.EventMessage, errorContent)
br.Log.Debugfln("Leaving private chat room %s as %s after accepting invite from %s as we already have chat with the user", roomID, puppet.MXID, inviter.MXID)
_, _ = intent.LeaveRoom(roomID)
}
func (br *QQBridge) createPrivatePortalFromInvite(roomID id.RoomID, inviter *User, puppet *Puppet, portal *Portal) {
portal.MXID = roomID
portal.Topic = PrivateChatTopic
_, _ = portal.MainIntent().SetRoomTopic(portal.MXID, portal.Topic)
if portal.bridge.Config.Bridge.PrivateChatPortalMeta {
portal.Name = puppet.Displayname
portal.AvatarURL = puppet.AvatarURL
portal.Avatar = puppet.Avatar
_, _ = portal.MainIntent().SetRoomName(portal.MXID, portal.Name)
_, _ = portal.MainIntent().SetRoomAvatar(portal.MXID, portal.AvatarURL)
} else {
portal.Name = ""
}
portal.log.Infofln("Created private chat portal in %s after invite from %s", roomID, inviter.MXID)
intent := puppet.DefaultIntent()
if br.Config.Bridge.Encryption.Default {
_, err := intent.InviteUser(roomID, &mautrix.ReqInviteUser{UserID: br.Bot.UserID})
if err != nil {
portal.log.Warnln("Failed to invite bridge bot to enable e2be:", err)
}
err = br.Bot.EnsureJoined(roomID)
if err != nil {
portal.log.Warnln("Failed to join as bridge bot to enable e2be:", err)
}
_, err = intent.SendStateEvent(roomID, event.StateEncryption, "", portal.GetEncryptionEventContent())
if err != nil {
portal.log.Warnln("Failed to enable e2be:", err)
}
br.AS.StateStore.SetMembership(roomID, inviter.MXID, event.MembershipJoin)
br.AS.StateStore.SetMembership(roomID, puppet.MXID, event.MembershipJoin)
br.AS.StateStore.SetMembership(roomID, br.Bot.UserID, event.MembershipJoin)
portal.Encrypted = true
}
portal.Update(nil)
portal.UpdateBridgeInfo()
_, _ = intent.SendNotice(roomID, "Private chat portal created")
}
func (br *QQBridge) HandlePresence(evt *event.Event) {
// TODO:
}
const defaultReconnectBackoff = 2 * time.Second
const maxReconnectBackoff = 2 * time.Minute
const reconnectBackoffReset = 5 * time.Minute
type StartSyncRequest struct {
AccessToken string `json:"access_token"`
DeviceID id.DeviceID `json:"device_id"`
UserID id.UserID `json:"user_id"`
}
func (br *QQBridge) SendBridgeStatus() {
state := BridgeStatus{}
state.StateEvent = BridgeStatusConnected
state.Timestamp = time.Now().Unix()
state.TTL = 600
state.Source = "bridge"
//state.RemoteID = "unknown"
if err := br.AS.SendWebsocket(&appservice.WebsocketRequest{
Command: "bridge_status",
Data: &state,
}); err != nil {
br.Log.Warnln("Error sending bridge status:", err)
}
}
func (br *QQBridge) RequestStartSync() {
if !br.Config.Bridge.Encryption.Appservice ||
br.Config.Homeserver.Software == bridgeconfig.SoftwareHungry ||
br.Crypto == nil ||
!br.AS.HasWebsocket() {
return
}
resp := map[string]interface{}{}
br.Log.Debugln("Sending /sync start request through websocket")
cryptoClient := br.Crypto.Client()
ctx, cancel := context.WithTimeout(context.Background(), 3*time.Minute)
defer cancel()
err := br.AS.RequestWebsocket(ctx, &appservice.WebsocketRequest{
Command: "start_sync",
Deadline: 30 * time.Second,
Data: &StartSyncRequest{
AccessToken: cryptoClient.AccessToken,
DeviceID: cryptoClient.DeviceID,
UserID: cryptoClient.UserID,
},
}, &resp)
if err != nil {
go br.WebsocketHandler.HandleSyncProxyError(nil, err)
} else {
br.Log.Debugln("Started receiving encryption data with sync proxy:", resp)
}
}
func (br *QQBridge) startWebsocket(wg *sync.WaitGroup) {
var wgOnce sync.Once
onConnect := func() {
go br.SendBridgeStatus()
br.RequestStartSync()
wgOnce.Do(wg.Done)
select {
case br.websocketStarted <- struct{}{}:
default:
}
}
reconnectBackoff := defaultReconnectBackoff
lastDisconnect := time.Now().UnixNano()
defer func() {
br.Log.Debugfln("Appservice websocket loop finished")
close(br.websocketStopped)
}()
for {
err := br.AS.StartWebsocket(br.Config.Homeserver.WSProxy, onConnect)
if err == appservice.ErrWebsocketManualStop {
return
} else if closeCommand := (&appservice.CloseCommand{}); errors.As(err, &closeCommand) && closeCommand.Status == appservice.MeowConnectionReplaced {
br.Log.Infoln("Appservice websocket closed by another instance of the bridge, shutting down...")
br.Stop()
return
} else if err != nil {
br.Log.Errorln("Error in appservice websocket:", err)
}
if br.stopping {
return
}
now := time.Now().UnixNano()
if lastDisconnect+reconnectBackoffReset.Nanoseconds() < now {
reconnectBackoff = defaultReconnectBackoff
} else {
reconnectBackoff *= 2
if reconnectBackoff > maxReconnectBackoff {
reconnectBackoff = maxReconnectBackoff
}
}
lastDisconnect = now
br.Log.Infofln("Websocket disconnected, reconnecting in %d seconds...", int(reconnectBackoff.Seconds()))
select {
case <-br.shortCircuitReconnectBackoff:
br.Log.Debugln("Reconnect backoff was short-circuited")
case <-time.After(reconnectBackoff):
}
if br.stopping {
return
}
}
}