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Use type aliases for different ID types and add puppet type

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This commit is contained in:
Tulir Asokan 2018-08-17 00:11:28 +03:00
parent 141eba644b
commit edd4f817e4
13 changed files with 325 additions and 189 deletions
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93
config/bridge.go
View File

@ -19,12 +19,19 @@ package config
import (
"bytes"
"text/template"
"maunium.net/go/mautrix-appservice"
"strings"
"strconv"
)
type BridgeConfig struct {
UsernameTemplate string `yaml:"username_template"`
DisplaynameTemplate string `yaml:"displayname_template"`
StateStore string `yaml:"state_store_path"`
CommandPrefix string `yaml:"command_prefix"`
Permissions PermissionConfig `yaml:"permissions"`
usernameTemplate *template.Template `yaml:"-"`
displaynameTemplate *template.Template `yaml:"-"`
}
@ -77,3 +84,87 @@ func (bc BridgeConfig) MarshalYAML() (interface{}, error) {
bc.UsernameTemplate = bc.FormatUsername("{{.Receiver}}", "{{.UserID}}")
return bc, nil
}
type PermissionConfig map[string]PermissionLevel
type PermissionLevel int
const (
PermissionLevelDefault PermissionLevel = 0
PermissionLevelUser PermissionLevel = 10
PermissionLevelAdmin PermissionLevel = 100
)
func (pc *PermissionConfig) UnmarshalYAML(unmarshal func(interface{}) error) error {
rawPC := make(map[string]string)
err := unmarshal(&rawPC)
if err != nil {
return err
}
if *pc == nil {
*pc = make(map[string]PermissionLevel)
}
for key, value := range rawPC {
switch strings.ToLower(value) {
case "user":
(*pc)[key] = PermissionLevelUser
case "admin":
(*pc)[key] = PermissionLevelAdmin
default:
val, err := strconv.Atoi(value)
if err != nil {
(*pc)[key] = PermissionLevelDefault
} else {
(*pc)[key] = PermissionLevel(val)
}
}
}
return nil
}
func (pc *PermissionConfig) MarshalYAML() (interface{}, error) {
if *pc == nil {
return nil, nil
}
rawPC := make(map[string]string)
for key, value := range *pc {
switch value {
case PermissionLevelUser:
rawPC[key] = "user"
case PermissionLevelAdmin:
rawPC[key] = "admin"
default:
rawPC[key] = strconv.Itoa(int(value))
}
}
return rawPC, nil
}
func (pc PermissionConfig) IsWhitelisted(userID string) bool {
return pc.GetPermissionLevel(userID) >= 10
}
func (pc PermissionConfig) IsAdmin(userID string) bool {
return pc.GetPermissionLevel(userID) >= 100
}
func (pc PermissionConfig) GetPermissionLevel(userID string) PermissionLevel {
permissions, ok := pc[userID]
if ok {
return permissions
}
_, homeserver := appservice.ParseUserID(userID)
permissions, ok = pc[homeserver]
if len(homeserver) > 0 && ok {
return permissions
}
permissions, ok = pc["*"]
if ok {
return permissions
}
return PermissionLevelDefault
}

2
config/config.go
View File

@ -38,6 +38,8 @@ type Config struct {
URI string `yaml:"uri"`
} `yaml:"database"`
StateStore string `yaml:"state_store_path"`
ID string `yaml:"id"`
Bot struct {
Username string `yaml:"username"`

2
config/registration.go
View File

@ -54,7 +54,7 @@ func (config *Config) copyToRegistration(registration *appservice.Registration)
registration.RateLimited = false
registration.SenderLocalpart = config.AppService.Bot.Username
userIDRegex, err := regexp.Compile(fmt.Sprintf("@%s:%s",
userIDRegex, err := regexp.Compile(fmt.Sprintf("^@%s:%s$",
config.Bridge.FormatUsername("[0-9]+", "[0-9]+"),
config.Homeserver.Domain))
if err != nil {

13
database/portal.go
View File

@ -18,6 +18,7 @@ package database
import (
log "maunium.net/go/maulogger"
"maunium.net/go/mautrix-whatsapp/types"
)
type PortalQuery struct {
@ -44,7 +45,7 @@ func (pq *PortalQuery) New() *Portal {
}
}
func (pq *PortalQuery) GetAll(owner string) (portals []*Portal) {
func (pq *PortalQuery) GetAll(owner types.MatrixUserID) (portals []*Portal) {
rows, err := pq.db.Query("SELECT * FROM portal WHERE owner=?", owner)
if err != nil || rows == nil {
return nil
@ -56,11 +57,11 @@ func (pq *PortalQuery) GetAll(owner string) (portals []*Portal) {
return
}
func (pq *PortalQuery) GetByJID(owner, jid string) *Portal {
func (pq *PortalQuery) GetByJID(owner types.MatrixUserID, jid types.WhatsAppID) *Portal {
return pq.get("SELECT * FROM portal WHERE jid=? AND owner=?", jid, owner)
}
func (pq *PortalQuery) GetByMXID(mxid string) *Portal {
func (pq *PortalQuery) GetByMXID(mxid types.MatrixRoomID) *Portal {
return pq.get("SELECT * FROM portal WHERE mxid=?", mxid)
}
@ -76,9 +77,9 @@ type Portal struct {
db *Database
log log.Logger
JID string
MXID string
Owner string
JID types.WhatsAppID
MXID types.MatrixRoomID
Owner types.MatrixUserID
}
func (portal *Portal) Scan(row Scannable) *Portal {

11
database/puppet.go
View File

@ -18,6 +18,7 @@ package database
import (
log "maunium.net/go/maulogger"
"maunium.net/go/mautrix-whatsapp/types"
)
type PuppetQuery struct {
@ -45,8 +46,8 @@ func (pq *PuppetQuery) New() *Puppet {
}
}
func (pq *PuppetQuery) GetAll() (puppets []*Puppet) {
rows, err := pq.db.Query("SELECT * FROM puppet")
func (pq *PuppetQuery) GetAll(receiver types.MatrixUserID) (puppets []*Puppet) {
rows, err := pq.db.Query("SELECT * FROM puppet WHERE receiver=%s")
if err != nil || rows == nil {
return nil
}
@ -57,7 +58,7 @@ func (pq *PuppetQuery) GetAll() (puppets []*Puppet) {
return
}
func (pq *PuppetQuery) Get(jid, receiver string) *Puppet {
func (pq *PuppetQuery) Get(jid types.WhatsAppID, receiver types.MatrixUserID) *Puppet {
row := pq.db.QueryRow("SELECT * FROM user WHERE jid=? AND receiver=?", jid, receiver)
if row == nil {
return nil
@ -69,8 +70,8 @@ type Puppet struct {
db *Database
log log.Logger
JID string
Receiver string
JID types.WhatsAppID
Receiver types.MatrixUserID
Displayname string
Avatar string

7
database/user.go
View File

@ -19,6 +19,7 @@ package database
import (
log "maunium.net/go/maulogger"
"github.com/Rhymen/go-whatsapp"
"maunium.net/go/mautrix-whatsapp/types"
)
type UserQuery struct {
@ -61,7 +62,7 @@ func (uq *UserQuery) GetAll() (users []*User) {
return
}
func (uq *UserQuery) Get(userID string) *User {
func (uq *UserQuery) Get(userID types.MatrixUserID) *User {
row := uq.db.QueryRow("SELECT * FROM user WHERE mxid=?", userID)
if row == nil {
return nil
@ -73,8 +74,8 @@ type User struct {
db *Database
log log.Logger
UserID string
ManagementRoom string
UserID types.MatrixUserID
ManagementRoom types.MatrixRoomID
Session *whatsapp.Session
}

22
example-config.yaml
View File

@ -22,12 +22,15 @@ appservice:
# The database URI. Usually file name. https://github.com/mattn/go-sqlite3#connection-string
uri: mautrix-whatsapp.db
# Path to the Matrix room state store.
state_store_path: ./mx-state.json
# The unique ID of this appservice.
id: whatsapp
# Appservice bot details.
bot:
# Username of the appservice bot.
username: whatsappbot
username: whatsapp
# Display name and avatar for bot. Set to "remove" to remove display name/avatar, leave empty
# to leave display name/avatar as-is.
displayname: WhatsApp bridge bot
@ -46,8 +49,21 @@ bridge:
# Displayname template for WhatsApp users.
# {{.displayname}} is replaced with the display name of the WhatsApp user.
displayname_template: "{{.Displayname}}"
# Path to the Matrix room state store.
state_store_path: ./mx-state.json
# The prefix for commands. Only required in non-management rooms.
command_prefix: "!wa"
# Permissions for using the bridge.
# Permitted values:
# user - Access to use the bridge to chat with a WhatsApp account.
# admin - User level and some additional administration tools
# Permitted keys:
# * - All Matrix users
# domain - All users on that homeserver
# mxid - Specific user
permissions:
"example.com": full
"@admin:example.com": admin
# Logging config.
logging:

119
main.go
View File

@ -17,13 +17,8 @@
package main
import (
"github.com/Rhymen/go-whatsapp"
"time"
"fmt"
"os"
"bufio"
"encoding/gob"
"github.com/mdp/qrterminal"
"maunium.net/go/mautrix-whatsapp/config"
flag "maunium.net/go/mauflag"
"os/signal"
@ -31,6 +26,8 @@ import (
"maunium.net/go/mautrix-appservice"
log "maunium.net/go/maulogger"
"maunium.net/go/mautrix-whatsapp/database"
"maunium.net/go/gomatrix"
"maunium.net/go/mautrix-whatsapp/types"
)
var configPath = flag.MakeFull("c", "config", "The path to your config file.", "config.yaml").String()
@ -62,19 +59,20 @@ func (bridge *Bridge) GenerateRegistration() {
type Bridge struct {
AppService *appservice.AppService
EventProcessor *appservice.EventProcessor
Config *config.Config
DB *database.Database
Log log.Logger
StateStore *AutosavingStateStore
MatrixListener *MatrixListener
users map[string]*User
users map[types.MatrixUserID]*User
}
func NewBridge() *Bridge {
bridge := &Bridge{}
bridge := &Bridge{
users: make(map[types.MatrixUserID]*User),
}
var err error
bridge.Config, err = config.Load(*configPath)
if err != nil {
@ -97,7 +95,8 @@ func (bridge *Bridge) Init() {
log.DefaultLogger = bridge.Log.(*log.BasicLogger)
bridge.AppService.Log = log.Sub("Matrix")
bridge.StateStore = NewAutosavingStateStore(bridge.Config.Bridge.StateStore)
bridge.Log.Debugln("Initializing state store")
bridge.StateStore = NewAutosavingStateStore(bridge.Config.AppService.StateStore)
err = bridge.StateStore.Load()
if err != nil {
bridge.Log.Fatalln("Failed to load state store:", err)
@ -105,19 +104,26 @@ func (bridge *Bridge) Init() {
}
bridge.AppService.StateStore = bridge.StateStore
bridge.Log.Debugln("Initializing database")
bridge.DB, err = database.New(bridge.Config.AppService.Database.URI)
if err != nil {
bridge.Log.Fatalln("Failed to initialize database:", err)
os.Exit(13)
}
bridge.MatrixListener = NewMatrixListener(bridge)
bridge.Log.Debugln("Initializing event processor")
bridge.EventProcessor = appservice.NewEventProcessor(bridge.AppService)
bridge.EventProcessor.On(gomatrix.EventMessage, bridge.HandleMessage)
bridge.EventProcessor.On(gomatrix.StateMember, bridge.HandleMembership)
}
func (bridge *Bridge) Start() {
bridge.DB.CreateTables()
bridge.Log.Debugln("Starting application service HTTP server")
go bridge.AppService.Start()
go bridge.MatrixListener.Start()
bridge.Log.Debugln("Starting event processor")
go bridge.EventProcessor.Start()
bridge.Log.Debugln("Updating bot profile")
go bridge.UpdateBotProfile()
}
@ -146,7 +152,7 @@ func (bridge *Bridge) UpdateBotProfile() {
func (bridge *Bridge) Stop() {
bridge.AppService.Stop()
bridge.MatrixListener.Stop()
bridge.EventProcessor.Stop()
err := bridge.StateStore.Save()
if err != nil {
bridge.Log.Warnln("Failed to save state store:", err)
@ -190,90 +196,3 @@ func main() {
NewBridge().Main()
}
func temp() {
wac, err := whatsapp.NewConn(20 * time.Second)
if err != nil {
panic(err)
}
wac.AddHandler(myHandler{})
sess, err := LoadSession("whatsapp.session")
if err != nil {
fmt.Println(err)
sess, err = Login(wac)
} else {
sess, err = wac.RestoreSession(sess)
}
if err != nil {
panic(err)
}
SaveSession(sess, "whatsapp.session")
reader := bufio.NewReader(os.Stdin)
for {
fmt.Print("receiver> ")
receiver, _ := reader.ReadString('\n')
fmt.Print("message> ")
message, _ := reader.ReadString('\n')
wac.Send(whatsapp.TextMessage{
Info: whatsapp.MessageInfo{
RemoteJid: fmt.Sprintf("%s@s.whatsapp.net", receiver),
},
Text: message,
})
fmt.Println(receiver, message)
}
}
func Login(wac *whatsapp.Conn) (whatsapp.Session, error) {
qrChan := make(chan string)
go func() {
qrterminal.Generate(<-qrChan, qrterminal.L, os.Stdout)
}()
return wac.Login(qrChan)
}
func SaveSession(session whatsapp.Session, fileName string) {
file, err := os.OpenFile(fileName, os.O_WRONLY|os.O_CREATE, 0600)
if err != nil {
panic(err)
}
enc := gob.NewEncoder(file)
enc.Encode(session)
}
func LoadSession(fileName string) (sess whatsapp.Session, err error) {
file, err := os.OpenFile(fileName, os.O_RDONLY, 0600)
if err != nil {
return sess, err
}
dec := gob.NewDecoder(file)
dec.Decode(sess)
return
}
type myHandler struct{}
func (myHandler) HandleError(err error) {
fmt.Fprintf(os.Stderr, "%v", err)
}
func (myHandler) HandleTextMessage(message whatsapp.TextMessage) {
fmt.Println(message)
}
func (myHandler) HandleImageMessage(message whatsapp.ImageMessage) {
fmt.Println(message)
}
func (myHandler) HandleVideoMessage(message whatsapp.VideoMessage) {
fmt.Println(message)
}
func (myHandler) HandleJsonMessage(message string) {
fmt.Println(message)
}

74
matrix.go
View File

@ -17,96 +17,60 @@
package main
import (
log "maunium.net/go/maulogger"
"maunium.net/go/mautrix-appservice"
"maunium.net/go/gomatrix"
)
type MatrixListener struct {
bridge *Bridge
as *appservice.AppService
log log.Logger
stop chan struct{}
}
func NewMatrixListener(bridge *Bridge) *MatrixListener {
return &MatrixListener{
bridge: bridge,
as: bridge.AppService,
stop: make(chan struct{}, 1),
log: bridge.Log.Sub("Matrix Listener"),
}
}
func (ml *MatrixListener) Start() {
for {
select {
case evt := <-ml.bridge.AppService.Events:
ml.log.Debugln("Received Matrix event:", evt)
switch evt.Type {
case gomatrix.StateMember:
ml.HandleMembership(evt)
case gomatrix.EventMessage:
ml.HandleMessage(evt)
}
case <-ml.stop:
return
}
}
}
func (ml *MatrixListener) HandleBotInvite(evt *gomatrix.Event) {
intent := ml.as.BotIntent()
func (bridge *Bridge) HandleBotInvite(evt *gomatrix.Event) {
intent := bridge.AppService.BotIntent()
resp, err := intent.JoinRoom(evt.RoomID, "", nil)
if err != nil {
ml.log.Debugln("Failed to join room", evt.RoomID, "with invite from", evt.Sender)
bridge.Log.Debugln("Failed to join room", evt.RoomID, "with invite from", evt.Sender)
return
}
members, err := intent.JoinedMembers(resp.RoomID)
if err != nil {
ml.log.Debugln("Failed to get members in room", resp.RoomID, "after accepting invite from", evt.Sender)
bridge.Log.Debugln("Failed to get members in room", resp.RoomID, "after accepting invite from", evt.Sender)
intent.LeaveRoom(resp.RoomID)
return
}
if len(members.Joined) < 2 {
ml.log.Debugln("Leaving empty room", resp.RoomID, "after accepting invite from", evt.Sender)
bridge.Log.Debugln("Leaving empty room", resp.RoomID, "after accepting invite from", evt.Sender)
intent.LeaveRoom(resp.RoomID)
return
}
hasPuppets := false
for mxid, _ := range members.Joined {
if mxid == intent.UserID || mxid == evt.Sender {
continue
} else if true { // TODO check if mxid is WhatsApp puppet
} else if _, _, ok := bridge.ParsePuppetMXID(mxid); ok {
hasPuppets = true
continue
}
ml.log.Debugln("Leaving multi-user room", resp.RoomID, "after accepting invite from", evt.Sender)
bridge.Log.Debugln("Leaving multi-user room", resp.RoomID, "after accepting invite from", evt.Sender)
intent.SendNotice(resp.RoomID, "This bridge is user-specific, please don't invite me into rooms with other users.")
intent.LeaveRoom(resp.RoomID)
return
}
user := ml.bridge.GetUser(evt.Sender)
if !hasPuppets {
user := bridge.GetUser(evt.Sender)
user.ManagementRoom = resp.RoomID
user.Update()
intent.SendNotice(user.ManagementRoom, "This room has been registered as your bridge management/status room.")
ml.log.Debugln(resp.RoomID, "registered as a management room with", evt.Sender)
}
func (ml *MatrixListener) HandleMembership(evt *gomatrix.Event) {
ml.log.Debugln(evt.Content, evt.Content.Membership, evt.GetStateKey())
if evt.Content.Membership == "invite" && evt.GetStateKey() == ml.as.BotMXID() {
ml.HandleBotInvite(evt)
bridge.Log.Debugln(resp.RoomID, "registered as a management room with", evt.Sender)
}
}
func (ml *MatrixListener) HandleMessage(evt *gomatrix.Event) {
func (bridge *Bridge) HandleMembership(evt *gomatrix.Event) {
bridge.Log.Debugln(evt.Content, evt.Content.Membership, evt.GetStateKey())
if evt.Content.Membership == "invite" && evt.GetStateKey() == bridge.AppService.BotMXID() {
bridge.HandleBotInvite(evt)
}
}
func (ml *MatrixListener) Stop() {
ml.stop <- struct{}{}
func (bridge *Bridge) HandleMessage(evt *gomatrix.Event) {
}

5
portal.go
View File

@ -20,9 +20,10 @@ import (
"maunium.net/go/mautrix-whatsapp/database"
log "maunium.net/go/maulogger"
"fmt"
"maunium.net/go/mautrix-whatsapp/types"
)
func (user *User) GetPortalByMXID(mxid string) *Portal {
func (user *User) GetPortalByMXID(mxid types.MatrixRoomID) *Portal {
portal, ok := user.portalsByMXID[mxid]
if !ok {
dbPortal := user.bridge.DB.Portal.GetByMXID(mxid)
@ -38,7 +39,7 @@ func (user *User) GetPortalByMXID(mxid string) *Portal {
return portal
}
func (user *User) GetPortalByJID(jid string) *Portal {
func (user *User) GetPortalByJID(jid types.WhatsAppID) *Portal {
portal, ok := user.portalsByJID[jid]
if !ok {
dbPortal := user.bridge.DB.Portal.GetByJID(user.UserID, jid)

113
puppet.go Normal file
View File

@ -0,0 +1,113 @@
// mautrix-whatsapp - A Matrix-WhatsApp puppeting bridge.
// Copyright (C) 2018 Tulir Asokan
//
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU Affero General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU Affero General Public License for more details.
//
// You should have received a copy of the GNU Affero General Public License
// along with this program. If not, see <https://www.gnu.org/licenses/>.
package main
import (
"maunium.net/go/mautrix-whatsapp/database"
log "maunium.net/go/maulogger"
"fmt"
"regexp"
"maunium.net/go/mautrix-whatsapp/types"
"strings"
)
func (bridge *Bridge) ParsePuppetMXID(mxid types.MatrixUserID) (types.MatrixUserID, types.WhatsAppID, bool) {
userIDRegex, err := regexp.Compile(fmt.Sprintf("^@%s:%s$",
bridge.Config.Bridge.FormatUsername("([0-9]+)", "([0-9]+)"),
bridge.Config.Homeserver.Domain))
if err != nil {
bridge.Log.Warnln("Failed to compile puppet user ID regex:", err)
return "", "", false
}
match := userIDRegex.FindStringSubmatch(string(mxid))
if match == nil || len(match) != 3 {
return "", "", false
}
receiver := match[1]
receiver = strings.Replace(receiver, "=40", "@", 1)
colonIndex := strings.LastIndex(receiver, "=3")
receiver = receiver[:colonIndex] + ":" + receiver[colonIndex+len("=3"):]
return types.MatrixUserID(receiver), types.WhatsAppID(match[2]), true
}
func (bridge *Bridge) GetPuppetByMXID(mxid types.MatrixUserID) *Puppet {
receiver, jid, ok := bridge.ParsePuppetMXID(mxid)
if !ok {
return nil
}
user := bridge.GetUser(receiver)
if user == nil {
return nil
}
return user.GetPuppetByJID(jid)
}
func (user *User) GetPuppetByMXID(mxid types.MatrixUserID) *Puppet {
receiver, jid, ok := user.bridge.ParsePuppetMXID(mxid)
if !ok || receiver != user.UserID {
return nil
}
return user.GetPuppetByJID(jid)
}
func (user *User) GetPuppetByJID(jid types.WhatsAppID) *Puppet {
puppet, ok := user.puppets[jid]
if !ok {
dbPuppet := user.bridge.DB.Puppet.Get(jid, user.UserID)
if dbPuppet == nil {
return nil
}
puppet = user.NewPuppet(dbPuppet)
user.puppets[puppet.JID] = puppet
}
return puppet
}
func (user *User) GetAllPuppets() []*Puppet {
dbPuppets := user.bridge.DB.Puppet.GetAll(user.UserID)
output := make([]*Puppet, len(dbPuppets))
for index, dbPuppet := range dbPuppets {
puppet, ok := user.puppets[dbPuppet.JID]
if !ok {
puppet = user.NewPuppet(dbPuppet)
user.puppets[dbPuppet.JID] = puppet
}
output[index] = puppet
}
return output
}
func (user *User) NewPuppet(dbPuppet *database.Puppet) *Puppet {
return &Puppet{
Puppet: dbPuppet,
user: user,
bridge: user.bridge,
log: user.log.Sub(fmt.Sprintf("Puppet/%s", dbPuppet.JID)),
}
}
type Puppet struct {
*database.Puppet
user *User
bridge *Bridge
log log.Logger
}

26
types/types.go Normal file
View File

@ -0,0 +1,26 @@
// mautrix-whatsapp - A Matrix-WhatsApp puppeting bridge.
// Copyright (C) 2018 Tulir Asokan
//
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU Affero General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU Affero General Public License for more details.
//
// You should have received a copy of the GNU Affero General Public License
// along with this program. If not, see <https://www.gnu.org/licenses/>.
package types
// WhatsAppID is a WhatsApp JID.
type WhatsAppID = string
// MatrixUserID is the ID of a Matrix user.
type MatrixUserID = string
// MatrixRoomID is the internal room ID of a Matrix room.
type MatrixRoomID = string

9
user.go
View File

@ -24,6 +24,7 @@ import (
"os"
"github.com/skip2/go-qrcode"
log "maunium.net/go/maulogger"
"maunium.net/go/mautrix-whatsapp/types"
)
type User struct {
@ -33,12 +34,12 @@ type User struct {
bridge *Bridge
log log.Logger
portalsByMXID map[string]*Portal
portalsByJID map[string]*Portal
puppets map[string]*Portal
portalsByMXID map[types.MatrixRoomID]*Portal
portalsByJID map[types.WhatsAppID]*Portal
puppets map[types.WhatsAppID]*Puppet
}
func (bridge *Bridge) GetUser(userID string) *User {
func (bridge *Bridge) GetUser(userID types.MatrixUserID) *User {
user, ok := bridge.users[userID]
if !ok {
dbUser := bridge.DB.User.Get(userID)