mautrix-discord/bridge/user.go
2022-05-21 00:13:33 +03:00

826 lines
18 KiB
Go

package bridge
import (
"errors"
"fmt"
"net/http"
"strings"
"sync"
"github.com/bwmarrin/discordgo"
"github.com/skip2/go-qrcode"
log "maunium.net/go/maulogger/v2"
"maunium.net/go/mautrix"
"maunium.net/go/mautrix/appservice"
"maunium.net/go/mautrix/event"
"maunium.net/go/mautrix/id"
"go.mau.fi/mautrix-discord/database"
)
var (
ErrNotConnected = errors.New("not connected")
ErrNotLoggedIn = errors.New("not logged in")
)
type User struct {
*database.User
sync.Mutex
bridge *Bridge
log log.Logger
// TODO finish implementing
Admin bool
guilds map[string]*database.Guild
guildsLock sync.Mutex
Session *discordgo.Session
}
// this assume you are holding the guilds lock!!!
func (u *User) loadGuilds() {
u.guilds = map[string]*database.Guild{}
for _, guild := range u.bridge.db.Guild.GetAll(u.ID) {
u.guilds[guild.GuildID] = guild
}
}
func (b *Bridge) loadUser(dbUser *database.User, mxid *id.UserID) *User {
// If we weren't passed in a user we attempt to create one if we were given
// a matrix id.
if dbUser == nil {
if mxid == nil {
return nil
}
dbUser = b.db.User.New()
dbUser.MXID = *mxid
dbUser.Insert()
}
user := b.NewUser(dbUser)
// We assume the usersLock was acquired by our caller.
b.usersByMXID[user.MXID] = user
if user.ID != "" {
b.usersByID[user.ID] = user
}
if user.ManagementRoom != "" {
// Lock the management rooms for our update
b.managementRoomsLock.Lock()
b.managementRooms[user.ManagementRoom] = user
b.managementRoomsLock.Unlock()
}
// Load our guilds state from the database and turn it into a map
user.guildsLock.Lock()
user.loadGuilds()
user.guildsLock.Unlock()
return user
}
func (b *Bridge) GetUserByMXID(userID id.UserID) *User {
// TODO: check if puppet
b.usersLock.Lock()
defer b.usersLock.Unlock()
user, ok := b.usersByMXID[userID]
if !ok {
return b.loadUser(b.db.User.GetByMXID(userID), &userID)
}
return user
}
func (b *Bridge) GetUserByID(id string) *User {
b.usersLock.Lock()
defer b.usersLock.Unlock()
user, ok := b.usersByID[id]
if !ok {
return b.loadUser(b.db.User.GetByID(id), nil)
}
return user
}
func (b *Bridge) NewUser(dbUser *database.User) *User {
user := &User{
User: dbUser,
bridge: b,
log: b.log.Sub("User").Sub(string(dbUser.MXID)),
guilds: map[string]*database.Guild{},
}
return user
}
func (b *Bridge) getAllUsers() []*User {
b.usersLock.Lock()
defer b.usersLock.Unlock()
dbUsers := b.db.User.GetAll()
users := make([]*User, len(dbUsers))
for idx, dbUser := range dbUsers {
user, ok := b.usersByMXID[dbUser.MXID]
if !ok {
user = b.loadUser(dbUser, nil)
}
users[idx] = user
}
return users
}
func (b *Bridge) startUsers() {
b.log.Debugln("Starting users")
for _, user := range b.getAllUsers() {
go user.Connect()
}
b.log.Debugln("Starting custom puppets")
for _, customPuppet := range b.GetAllPuppetsWithCustomMXID() {
go func(puppet *Puppet) {
b.log.Debugln("Starting custom puppet", puppet.CustomMXID)
if err := puppet.StartCustomMXID(true); err != nil {
puppet.log.Errorln("Failed to start custom puppet:", err)
}
}(customPuppet)
}
}
func (u *User) SetManagementRoom(roomID id.RoomID) {
u.bridge.managementRoomsLock.Lock()
defer u.bridge.managementRoomsLock.Unlock()
existing, ok := u.bridge.managementRooms[roomID]
if ok {
// If there's a user already assigned to this management room, clear it
// out.
// I think this is due a name change or something? I dunno, leaving it
// for now.
existing.ManagementRoom = ""
existing.Update()
}
u.ManagementRoom = roomID
u.bridge.managementRooms[u.ManagementRoom] = u
u.Update()
}
func (u *User) sendQRCode(bot *appservice.IntentAPI, roomID id.RoomID, code string) (id.EventID, error) {
url, err := u.uploadQRCode(code)
if err != nil {
return "", err
}
content := event.MessageEventContent{
MsgType: event.MsgImage,
Body: code,
URL: url.CUString(),
}
resp, err := bot.SendMessageEvent(roomID, event.EventMessage, &content)
if err != nil {
return "", err
}
return resp.EventID, nil
}
func (u *User) uploadQRCode(code string) (id.ContentURI, error) {
qrCode, err := qrcode.Encode(code, qrcode.Low, 256)
if err != nil {
u.log.Errorln("Failed to encode QR code:", err)
return id.ContentURI{}, err
}
bot := u.bridge.as.BotClient()
resp, err := bot.UploadBytes(qrCode, "image/png")
if err != nil {
u.log.Errorln("Failed to upload QR code:", err)
return id.ContentURI{}, err
}
return resp.ContentURI, nil
}
func (u *User) tryAutomaticDoublePuppeting() {
u.Lock()
defer u.Unlock()
if !u.bridge.Config.CanAutoDoublePuppet(u.MXID) {
return
}
u.log.Debugln("Checking if double puppeting needs to be enabled")
puppet := u.bridge.GetPuppetByID(u.ID)
if puppet.CustomMXID != "" {
u.log.Debugln("User already has double-puppeting enabled")
return
}
accessToken, err := puppet.loginWithSharedSecret(u.MXID)
if err != nil {
u.log.Warnln("Failed to login with shared secret:", err)
return
}
err = puppet.SwitchCustomMXID(accessToken, u.MXID)
if err != nil {
puppet.log.Warnln("Failed to switch to auto-logined custom puppet:", err)
return
}
u.log.Infoln("Successfully automatically enabled custom puppet")
}
func (u *User) syncChatDoublePuppetDetails(portal *Portal, justCreated bool) {
doublePuppet := portal.bridge.GetPuppetByCustomMXID(u.MXID)
if doublePuppet == nil {
return
}
if doublePuppet == nil || doublePuppet.CustomIntent() == nil || portal.MXID == "" {
return
}
// TODO sync mute status
}
func (u *User) Login(token string) error {
if token == "" {
return fmt.Errorf("No token specified")
}
u.Token = token
u.Update()
return u.Connect()
}
func (u *User) LoggedIn() bool {
u.Lock()
defer u.Unlock()
return u.Token != ""
}
func (u *User) Logout() error {
u.Lock()
defer u.Unlock()
if u.Session == nil {
return ErrNotLoggedIn
}
puppet := u.bridge.GetPuppetByID(u.ID)
if puppet.CustomMXID != "" {
err := puppet.SwitchCustomMXID("", "")
if err != nil {
u.log.Warnln("Failed to logout-matrix while logging out of Discord:", err)
}
}
if err := u.Session.Close(); err != nil {
return err
}
u.Session = nil
u.Token = ""
u.Update()
return nil
}
func (u *User) Connected() bool {
u.Lock()
defer u.Unlock()
return u.Session != nil
}
func (u *User) Connect() error {
u.Lock()
defer u.Unlock()
if u.Token == "" {
return ErrNotLoggedIn
}
u.log.Debugln("connecting to discord")
session, err := discordgo.New(u.Token)
if err != nil {
return err
}
u.Session = session
// Add our event handlers
u.Session.AddHandler(u.readyHandler)
u.Session.AddHandler(u.connectedHandler)
u.Session.AddHandler(u.disconnectedHandler)
u.Session.AddHandler(u.guildCreateHandler)
u.Session.AddHandler(u.guildDeleteHandler)
u.Session.AddHandler(u.guildUpdateHandler)
u.Session.AddHandler(u.channelCreateHandler)
u.Session.AddHandler(u.channelDeleteHandler)
u.Session.AddHandler(u.channelPinsUpdateHandler)
u.Session.AddHandler(u.channelUpdateHandler)
u.Session.AddHandler(u.messageCreateHandler)
u.Session.AddHandler(u.messageDeleteHandler)
u.Session.AddHandler(u.messageUpdateHandler)
u.Session.AddHandler(u.reactionAddHandler)
u.Session.AddHandler(u.reactionRemoveHandler)
u.Session.Identify.Presence.Status = "online"
return u.Session.Open()
}
func (u *User) Disconnect() error {
u.Lock()
defer u.Unlock()
if u.Session == nil {
return ErrNotConnected
}
if err := u.Session.Close(); err != nil {
return err
}
u.Session = nil
return nil
}
func (u *User) bridgeMessage(guildID string) bool {
// Non guild message always get bridged.
if guildID == "" {
return true
}
u.guildsLock.Lock()
defer u.guildsLock.Unlock()
if guild, found := u.guilds[guildID]; found {
if guild.Bridge {
return true
}
}
u.log.Debugfln("ignoring message for non-bridged guild %s-%s", u.ID, guildID)
return false
}
func (u *User) readyHandler(s *discordgo.Session, r *discordgo.Ready) {
u.log.Debugln("discord connection ready")
// Update our user fields
u.ID = r.User.ID
// Update our guild map to match watch discord thinks we're in. This is the
// only time we can get the full guild map as discordgo doesn't make it
// available to us later. Also, discord might not give us the full guild
// information here, so we use this to remove guilds the user left and only
// add guilds whose full information we have. The are told about the
// "unavailable" guilds later via the GuildCreate handler.
u.guildsLock.Lock()
defer u.guildsLock.Unlock()
// build a list of the current guilds we're in so we can prune the old ones
current := []string{}
u.log.Debugln("database guild count", len(u.guilds))
u.log.Debugln("discord guild count", len(r.Guilds))
for _, guild := range r.Guilds {
current = append(current, guild.ID)
// If we already know about this guild, make sure we reset it's bridge
// status.
if val, found := u.guilds[guild.ID]; found {
bridge := val.Bridge
u.guilds[guild.ID].Bridge = bridge
// Update the name if the guild is available
if !guild.Unavailable {
u.guilds[guild.ID].GuildName = guild.Name
}
val.Upsert()
} else {
g := u.bridge.db.Guild.New()
g.DiscordID = u.ID
g.GuildID = guild.ID
u.guilds[guild.ID] = g
if !guild.Unavailable {
g.GuildName = guild.Name
}
g.Upsert()
}
}
// Sync the guilds to the database.
u.bridge.db.Guild.Prune(u.ID, current)
// Finally reload from the database since it purged servers we're not in
// anymore.
u.loadGuilds()
u.log.Debugln("updated database guild count", len(u.guilds))
u.Update()
}
func (u *User) connectedHandler(s *discordgo.Session, c *discordgo.Connect) {
u.log.Debugln("connected to discord")
u.tryAutomaticDoublePuppeting()
}
func (u *User) disconnectedHandler(s *discordgo.Session, d *discordgo.Disconnect) {
u.log.Debugln("disconnected from discord")
}
func (u *User) guildCreateHandler(s *discordgo.Session, g *discordgo.GuildCreate) {
u.guildsLock.Lock()
defer u.guildsLock.Unlock()
// If we somehow already know about the guild, just update it's name
if guild, found := u.guilds[g.ID]; found {
guild.GuildName = g.Name
guild.Upsert()
return
}
// This is a brand new guild so lets get it added.
guild := u.bridge.db.Guild.New()
guild.DiscordID = u.ID
guild.GuildID = g.ID
guild.GuildName = g.Name
guild.Upsert()
u.guilds[g.ID] = guild
}
func (u *User) guildDeleteHandler(s *discordgo.Session, g *discordgo.GuildDelete) {
u.guildsLock.Lock()
defer u.guildsLock.Unlock()
if guild, found := u.guilds[g.ID]; found {
guild.Delete()
delete(u.guilds, g.ID)
u.log.Debugln("deleted guild", g.Guild.ID)
}
}
func (u *User) guildUpdateHandler(s *discordgo.Session, g *discordgo.GuildUpdate) {
u.guildsLock.Lock()
defer u.guildsLock.Unlock()
// If we somehow already know about the guild, just update it's name
if guild, found := u.guilds[g.ID]; found {
guild.GuildName = g.Name
guild.Upsert()
u.log.Debugln("updated guild", g.ID)
}
}
func (u *User) createChannel(c *discordgo.Channel) {
key := database.NewPortalKey(c.ID, u.User.ID)
portal := u.bridge.GetPortalByID(key)
if portal.MXID != "" {
return
}
portal.Name = c.Name
portal.Topic = c.Topic
portal.Type = c.Type
if portal.Type == discordgo.ChannelTypeDM {
portal.DMUser = c.Recipients[0].ID
}
if c.Icon != "" {
u.log.Debugln("channel icon", c.Icon)
}
portal.Update()
portal.createMatrixRoom(u, c)
}
func (u *User) channelCreateHandler(s *discordgo.Session, c *discordgo.ChannelCreate) {
u.createChannel(c.Channel)
}
func (u *User) channelDeleteHandler(s *discordgo.Session, c *discordgo.ChannelDelete) {
u.log.Debugln("channel delete handler")
}
func (u *User) channelPinsUpdateHandler(s *discordgo.Session, c *discordgo.ChannelPinsUpdate) {
u.log.Debugln("channel pins update")
}
func (u *User) channelUpdateHandler(s *discordgo.Session, c *discordgo.ChannelUpdate) {
key := database.NewPortalKey(c.ID, u.User.ID)
portal := u.bridge.GetPortalByID(key)
portal.update(u, c.Channel)
}
func (u *User) messageCreateHandler(s *discordgo.Session, m *discordgo.MessageCreate) {
if !u.bridgeMessage(m.GuildID) {
return
}
key := database.NewPortalKey(m.ChannelID, u.ID)
portal := u.bridge.GetPortalByID(key)
msg := portalDiscordMessage{
msg: m,
user: u,
}
portal.discordMessages <- msg
}
func (u *User) messageDeleteHandler(s *discordgo.Session, m *discordgo.MessageDelete) {
if !u.bridgeMessage(m.GuildID) {
return
}
key := database.NewPortalKey(m.ChannelID, u.ID)
portal := u.bridge.GetPortalByID(key)
msg := portalDiscordMessage{
msg: m,
user: u,
}
portal.discordMessages <- msg
}
func (u *User) messageUpdateHandler(s *discordgo.Session, m *discordgo.MessageUpdate) {
if !u.bridgeMessage(m.GuildID) {
return
}
key := database.NewPortalKey(m.ChannelID, u.ID)
portal := u.bridge.GetPortalByID(key)
msg := portalDiscordMessage{
msg: m,
user: u,
}
portal.discordMessages <- msg
}
func (u *User) reactionAddHandler(s *discordgo.Session, m *discordgo.MessageReactionAdd) {
if !u.bridgeMessage(m.MessageReaction.GuildID) {
return
}
key := database.NewPortalKey(m.ChannelID, u.User.ID)
portal := u.bridge.GetPortalByID(key)
msg := portalDiscordMessage{
msg: m,
user: u,
}
portal.discordMessages <- msg
}
func (u *User) reactionRemoveHandler(s *discordgo.Session, m *discordgo.MessageReactionRemove) {
if !u.bridgeMessage(m.MessageReaction.GuildID) {
return
}
key := database.NewPortalKey(m.ChannelID, u.User.ID)
portal := u.bridge.GetPortalByID(key)
msg := portalDiscordMessage{
msg: m,
user: u,
}
portal.discordMessages <- msg
}
func (u *User) ensureInvited(intent *appservice.IntentAPI, roomID id.RoomID, isDirect bool) bool {
ret := false
inviteContent := event.Content{
Parsed: &event.MemberEventContent{
Membership: event.MembershipInvite,
IsDirect: isDirect,
},
Raw: map[string]interface{}{},
}
customPuppet := u.bridge.GetPuppetByCustomMXID(u.MXID)
if customPuppet != nil && customPuppet.CustomIntent() != nil {
inviteContent.Raw["fi.mau.will_auto_accept"] = true
}
_, err := intent.SendStateEvent(roomID, event.StateMember, u.MXID.String(), &inviteContent)
var httpErr mautrix.HTTPError
if err != nil && errors.As(err, &httpErr) && httpErr.RespError != nil && strings.Contains(httpErr.RespError.Err, "is already in the room") {
u.bridge.StateStore.SetMembership(roomID, u.MXID, event.MembershipJoin)
ret = true
} else if err != nil {
u.log.Warnfln("Failed to invite user to %s: %v", roomID, err)
} else {
ret = true
}
if customPuppet != nil && customPuppet.CustomIntent() != nil {
err = customPuppet.CustomIntent().EnsureJoined(roomID, appservice.EnsureJoinedParams{IgnoreCache: true})
if err != nil {
u.log.Warnfln("Failed to auto-join %s: %v", roomID, err)
ret = false
} else {
ret = true
}
}
return ret
}
func (u *User) getDirectChats() map[id.UserID][]id.RoomID {
chats := map[id.UserID][]id.RoomID{}
privateChats := u.bridge.db.Portal.FindPrivateChats(u.ID)
for _, portal := range privateChats {
if portal.MXID != "" {
puppetMXID := u.bridge.FormatPuppetMXID(portal.Key.Receiver)
chats[puppetMXID] = []id.RoomID{portal.MXID}
}
}
return chats
}
func (u *User) updateDirectChats(chats map[id.UserID][]id.RoomID) {
if !u.bridge.Config.Bridge.SyncDirectChatList {
return
}
puppet := u.bridge.GetPuppetByMXID(u.MXID)
if puppet == nil {
return
}
intent := puppet.CustomIntent()
if intent == nil {
return
}
method := http.MethodPatch
if chats == nil {
chats = u.getDirectChats()
method = http.MethodPut
}
u.log.Debugln("Updating m.direct list on homeserver")
var err error
if u.bridge.Config.Homeserver.Asmux {
urlPath := intent.BuildURL(mautrix.ClientURLPath{"unstable", "com.beeper.asmux", "dms"})
_, err = intent.MakeFullRequest(mautrix.FullRequest{
Method: method,
URL: urlPath,
Headers: http.Header{"X-Asmux-Auth": {u.bridge.as.Registration.AppToken}},
RequestJSON: chats,
})
} else {
existingChats := map[id.UserID][]id.RoomID{}
err = intent.GetAccountData(event.AccountDataDirectChats.Type, &existingChats)
if err != nil {
u.log.Warnln("Failed to get m.direct list to update it:", err)
return
}
for userID, rooms := range existingChats {
if _, ok := u.bridge.ParsePuppetMXID(userID); !ok {
// This is not a ghost user, include it in the new list
chats[userID] = rooms
} else if _, ok := chats[userID]; !ok && method == http.MethodPatch {
// This is a ghost user, but we're not replacing the whole list, so include it too
chats[userID] = rooms
}
}
err = intent.SetAccountData(event.AccountDataDirectChats.Type, &chats)
}
if err != nil {
u.log.Warnln("Failed to update m.direct list:", err)
}
}
func (u *User) bridgeGuild(guildID string, everything bool) error {
u.guildsLock.Lock()
defer u.guildsLock.Unlock()
guild, found := u.guilds[guildID]
if !found {
return fmt.Errorf("guildID not found")
}
// Update the guild
guild.Bridge = true
guild.Upsert()
// If this is a full bridge, create portals for all the channels
if everything {
channels, err := u.Session.GuildChannels(guildID)
if err != nil {
return err
}
for _, channel := range channels {
if channelIsBridgeable(channel) {
u.createChannel(channel)
}
}
}
return nil
}
func (u *User) unbridgeGuild(guildID string) error {
u.guildsLock.Lock()
defer u.guildsLock.Unlock()
guild, exists := u.guilds[guildID]
if !exists {
return fmt.Errorf("guildID not found")
}
if !guild.Bridge {
return fmt.Errorf("guild not bridged")
}
// First update the guild so we don't have any other go routines recreating
// channels we're about to destroy.
guild.Bridge = false
guild.Upsert()
// Now run through the channels in the guild and remove any portals we
// have for them.
channels, err := u.Session.GuildChannels(guildID)
if err != nil {
return err
}
for _, channel := range channels {
if channelIsBridgeable(channel) {
key := database.PortalKey{
ChannelID: channel.ID,
Receiver: u.ID,
}
portal := u.bridge.GetPortalByID(key)
portal.leave(u)
}
}
return nil
}