mautrix-whatsapp/main.go

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// mautrix-whatsapp - A Matrix-WhatsApp puppeting bridge.
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// 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 (
"fmt"
"os"
"maunium.net/go/mautrix-whatsapp/config"
flag "maunium.net/go/mauflag"
"os/signal"
"syscall"
"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()
var registrationPath = flag.MakeFull("r", "registration", "The path where to save the appservice registration.", "registration.yaml").String()
var generateRegistration = flag.MakeFull("g", "generate-registration", "Generate registration and quit.", "false").Bool()
var wantHelp, _ = flag.MakeHelpFlag()
func (bridge *Bridge) GenerateRegistration() {
reg, err := bridge.Config.NewRegistration()
if err != nil {
fmt.Fprintln(os.Stderr, "Failed to generate registration:", err)
os.Exit(20)
}
err = reg.Save(*registrationPath)
if err != nil {
fmt.Fprintln(os.Stderr, "Failed to save registration:", err)
os.Exit(21)
}
err = bridge.Config.Save(*configPath)
if err != nil {
fmt.Fprintln(os.Stderr, "Failed to save config:", err)
os.Exit(22)
}
fmt.Println("Registration generated. Add the path to the registration to your Synapse config restart it, then start the bridge.")
os.Exit(0)
}
type Bridge struct {
AppService *appservice.AppService
EventProcessor *appservice.EventProcessor
Config *config.Config
DB *database.Database
Log log.Logger
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StateStore *AutosavingStateStore
users map[types.MatrixUserID]*User
}
func NewBridge() *Bridge {
bridge := &Bridge{
users: make(map[types.MatrixUserID]*User),
}
var err error
bridge.Config, err = config.Load(*configPath)
if err != nil {
fmt.Fprintln(os.Stderr, "Failed to load config:", err)
os.Exit(10)
}
return bridge
}
func (bridge *Bridge) Init() {
var err error
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bridge.AppService, err = bridge.Config.MakeAppService()
if err != nil {
fmt.Fprintln(os.Stderr, "Failed to initialize AppService:", err)
os.Exit(11)
}
bridge.AppService.Init()
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bridge.Log = bridge.AppService.Log
log.DefaultLogger = bridge.Log.(*log.BasicLogger)
bridge.AppService.Log = log.Sub("Matrix")
bridge.Log.Debugln("Initializing state store")
bridge.StateStore = NewAutosavingStateStore(bridge.Config.AppService.StateStore)
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err = bridge.StateStore.Load()
if err != nil {
bridge.Log.Fatalln("Failed to load state store:", err)
os.Exit(12)
}
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)
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os.Exit(13)
}
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() {
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bridge.DB.CreateTables()
bridge.Log.Debugln("Starting application service HTTP server")
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go bridge.AppService.Start()
bridge.Log.Debugln("Starting event processor")
go bridge.EventProcessor.Start()
bridge.Log.Debugln("Updating bot profile")
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go bridge.UpdateBotProfile()
}
func (bridge *Bridge) UpdateBotProfile() {
botConfig := bridge.Config.AppService.Bot
var err error
if botConfig.Avatar == "remove" {
err = bridge.AppService.BotIntent().SetAvatarURL("")
} else if len(botConfig.Avatar) > 0 {
err = bridge.AppService.BotIntent().SetAvatarURL(botConfig.Avatar)
}
if err != nil {
bridge.Log.Warnln("Failed to update bot avatar:", err)
}
if botConfig.Displayname == "remove" {
err = bridge.AppService.BotIntent().SetDisplayName("")
} else if len(botConfig.Avatar) > 0 {
err = bridge.AppService.BotIntent().SetDisplayName(botConfig.Displayname)
}
if err != nil {
bridge.Log.Warnln("Failed to update bot displayname:", err)
}
}
func (bridge *Bridge) Stop() {
bridge.AppService.Stop()
bridge.EventProcessor.Stop()
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err := bridge.StateStore.Save()
if err != nil {
bridge.Log.Warnln("Failed to save state store:", err)
}
}
func (bridge *Bridge) Main() {
if *generateRegistration {
bridge.GenerateRegistration()
return
}
bridge.Init()
bridge.Log.Infoln("Bridge initialization complete, starting...")
bridge.Start()
bridge.Log.Infoln("Bridge started!")
c := make(chan os.Signal)
signal.Notify(c, os.Interrupt, syscall.SIGTERM)
<-c
bridge.Log.Infoln("Interrupt received, stopping...")
bridge.Stop()
bridge.Log.Infoln("Bridge stopped.")
os.Exit(0)
}
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func main() {
flag.SetHelpTitles(
"mautrix-whatsapp - A Matrix-WhatsApp puppeting bridge.",
"mautrix-whatsapp [-h] [-c <path>] [-r <path>] [-g]")
err := flag.Parse()
if err != nil {
fmt.Fprintln(os.Stderr, err)
flag.PrintHelp()
os.Exit(1)
} else if *wantHelp {
flag.PrintHelp()
os.Exit(0)
}
NewBridge().Main()
}