Add command for Google account login

commands.go

@@ -17,6 +17,7 @@
 package main
 
 import (
+	"encoding/json"
 	"fmt"
 	"strings"
 
@@ -40,7 +41,8 @@ type WrappedCommandEvent struct {
 func (br *GMBridge) RegisterCommands() {
 	proc := br.CommandProcessor.(*commands.Processor)
 	proc.AddHandlers(
-		cmdLogin,
+		cmdLoginQR,
+		cmdLoginGoogle,
 		cmdDeleteSession,
 		cmdLogout,
 		cmdReconnect,
@@ -70,16 +72,17 @@ var (
 	HelpSectionPortalManagement     = commands.HelpSection{Name: "Portal management", Order: 20}
 )
 
-var cmdLogin = &commands.FullHandler{
+var cmdLoginQR = &commands.FullHandler{
-	Func: wrapCommand(fnLogin),
+	Func:    wrapCommand(fnLoginQR),
-	Name: "login",
+	Name:    "login-qr",
+	Aliases: []string{"login"},
 	Help: commands.HelpMeta{
 		Section:     commands.HelpSectionAuth,
-		Description: "Link the bridge to Google Messages on your Android phone as a web client.",
+		Description: "Link the bridge to Google Messages on your Android phone by scanning a QR code.",
 	},
 }
 
-func fnLogin(ce *WrappedCommandEvent) {
+func fnLoginQR(ce *WrappedCommandEvent) {
 	if ce.User.Session != nil {
 		if ce.User.IsConnected() {
 			ce.Reply("You're already logged in")
@@ -123,6 +126,64 @@ func fnLogin(ce *WrappedCommandEvent) {
 	ce.ZLog.Trace().Msg("Login command finished")
 }
 
+var cmdLoginGoogle = &commands.FullHandler{
+	Func:    wrapCommand(fnLoginGoogle),
+	Name:    "login-google",
+	Aliases: []string{"login"},
+	Help: commands.HelpMeta{
+		Section:     commands.HelpSectionAuth,
+		Description: "Link the bridge to Google Messages on your Android phone by logging in with your Google account.",
+	},
+}
+
+func fnLoginGoogle(ce *WrappedCommandEvent) {
+	if ce.User.Session != nil {
+		if ce.User.IsConnected() {
+			ce.Reply("You're already logged in")
+		} else {
+			ce.Reply("You're already logged in. Perhaps you wanted to `reconnect`?")
+		}
+		return
+	} else if ce.User.pairSuccessChan != nil {
+		ce.Reply("You already have a login in progress")
+		return
+	}
+	ce.User.CommandState = &commands.CommandState{
+		Next:   commands.MinimalHandlerFunc(wrapCommand(fnLoginGoogleCookies)),
+		Action: "Login",
+	}
+	ce.Reply("Send your Google cookies here, formatted as a key-value JSON object (see <https://docs.mau.fi/bridges/go/gmessages/authentication.html> for details)")
+}
+
+func fnLoginGoogleCookies(ce *WrappedCommandEvent) {
+	ce.User.CommandState = nil
+	if ce.User.Session != nil {
+		if ce.User.IsConnected() {
+			ce.Reply("You're already logged in")
+		} else {
+			ce.Reply("You're already logged in. Perhaps you wanted to `reconnect`?")
+		}
+		return
+	} else if ce.User.pairSuccessChan != nil {
+		ce.Reply("You already have a login in progress")
+		return
+	}
+	var cookies map[string]string
+	err := json.Unmarshal([]byte(ce.RawArgs), &cookies)
+	if err != nil {
+		ce.Reply("Failed to parse cookies: %v", err)
+		return
+	}
+	err = ce.User.LoginGoogle(cookies, func(emoji string) {
+		ce.Reply(emoji)
+	})
+	if err != nil {
+		ce.Reply("Login failed: %v", err)
+	} else {
+		ce.Reply("Login successful")
+	}
+}
+
 func (user *User) sendQREdit(ce *WrappedCommandEvent, content *event.MessageEventContent, prevEvent id.EventID) id.EventID {
 	if len(prevEvent) != 0 {
 		content.SetEdit(prevEvent)

user.go

@@ -35,6 +35,7 @@ import (
 	"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"
@@ -65,6 +66,7 @@ type User struct {
 	connLock        sync.Mutex
 
 	BridgeState  *bridge.BridgeStateQueue
+	CommandState *commands.CommandState
 
 	spaceMembershipChecked bool
 
@@ -83,13 +85,22 @@ type User struct {
 	loginInProgress  atomic.Bool
 	pairSuccessChan  chan struct{}
 	ongoingLoginChan <-chan qrChannelItem
-	loginChanReadLock sync.Mutex
 	lastQRCode       string
 	cancelLogin      func()
 
 	DoublePuppetIntent *appservice.IntentAPI
 }
 
+func (user *User) GetCommandState() *commands.CommandState {
+	return user.CommandState
+}
+
+func (user *User) SetCommandState(state *commands.CommandState) {
+	user.CommandState = state
+}
+
+var _ commands.CommandingUser = (*User)(nil)
+
 func (br *GMBridge) getUserByMXID(userID id.UserID, onlyIfExists bool) *User {
 	_, isPuppet := br.ParsePuppetMXID(userID)
 	if isPuppet || userID == br.Bot.UserID {
@@ -155,10 +166,6 @@ func (user *User) GetMXID() id.UserID {
 	return user.MXID
 }
 
-func (user *User) GetCommandState() map[string]interface{} {
-	return nil
-}
-
 func (br *GMBridge) GetUserByMXIDIfExists(userID id.UserID) *User {
 	return br.getUserByMXID(userID, true)
 }
@@ -456,6 +463,33 @@ func (user *User) Login(maxAttempts int) (<-chan qrChannelItem, error) {
 	return ch, nil
 }
 
+func (user *User) LoginGoogle(cookies map[string]string, emojiCallback func(string)) error {
+	user.connLock.Lock()
+	defer user.connLock.Unlock()
+	if user.Session != nil {
+		return ErrAlreadyLoggedIn
+	} else if !user.loginInProgress.CompareAndSwap(false, true) {
+		return ErrLoginInProgress
+	}
+	if user.Client != nil {
+		user.unlockedDeleteConnection()
+	}
+	pairSuccessChan := make(chan struct{})
+	user.pairSuccessChan = pairSuccessChan
+	authData := libgm.NewAuthData()
+	authData.Cookies = cookies
+	user.createClient(authData)
+	Analytics.Track(user.MXID, "$login_start")
+	err := user.Client.DoGaiaPairing(emojiCallback)
+	if err != nil {
+		user.unlockedDeleteConnection()
+		user.pairSuccessChan = nil
+		user.loginInProgress.Store(false)
+		return fmt.Errorf("failed to connect to Google Messages: %w", err)
+	}
+	return nil
+}
+
 func (user *User) Connect() bool {
 	user.connLock.Lock()
 	defer user.connLock.Unlock()