Allow configuring device details shown on phone

config/config.go

@@ -32,6 +32,13 @@ type Config struct {
 		Listen  string `yaml:"listen"`
 	} `yaml:"metrics"`
 
+	GoogleMessages struct {
+		OS      string `yaml:"os"`
+		Browser string `yaml:"browser"`
+
+		AggressiveReconnect bool `yaml:"aggressive_reconnect"`
+	} `yaml:"google_messages"`
+
 	Bridge BridgeConfig `yaml:"bridge"`
 }
 

config/upgrade.go

@@ -31,6 +31,10 @@ func DoUpgrade(helper *up.Helper) {
 	helper.Copy(up.Bool, "metrics", "enabled")
 	helper.Copy(up.Str, "metrics", "listen")
 
+	helper.Copy(up.Str, "google_messages", "os")
+	helper.Copy(up.Str, "google_messages", "browser")
+	helper.Copy(up.Bool, "google_messages", "aggressive_reconnect")
+
 	helper.Copy(up.Str, "bridge", "username_template")
 	helper.Copy(up.Str, "bridge", "displayname_template")
 	helper.Copy(up.Bool, "bridge", "personal_filtering_spaces")

example-config.yaml

@@ -88,6 +88,17 @@ metrics:
     # IP and port where the metrics listener should be. The path is always /metrics
     listen: 127.0.0.1:8001
 
+google_messages:
+    # OS name to tell the phone. This is the name that shows up in the paired devices list.
+    os: mautrix-gmessages
+    # Browser type to tell the phone. This decides which icon is shown.
+    # Valid types: OTHER, CHROME, FIREFOX, SAFARI, OPERA, IE, EDGE
+    browser: OTHER
+
+    # Should the bridge aggressively set itself as the active device if the user opens Google Messages in a browser?
+    # If this is disabled, the user must manually use the `reconnect` command to reactivate the bridge.
+    aggressive_reconnect: false
+
 # Bridge config
 bridge:
     # Localpart template of MXIDs for SMS users.

libgm/payload/config.go

@@ -15,7 +15,7 @@ var ConfigMessage = &binary.ConfigVersion{
 var Network = "Bugle"
 var BrowserDetailsMessage = &binary.BrowserDetails{
 	UserAgent:   util.UserAgent,
-	BrowserType: util.BrowserType,
+	BrowserType: binary.BrowserTypes_OTHER,
-	Os:          util.OS,
+	Os:          "libgm",
 	SomeBool:    true,
 }

libgm/util/constants.go

@@ -1,13 +1,8 @@
 package util
 
-import (
-	"go.mau.fi/mautrix-gmessages/libgm/binary"
-)
-
-var BrowserType = binary.BrowserTypes_CHROME
-
 const GoogleAPIKey = "AIzaSyCA4RsOZUFrm9whhtGosPlJLmVPnfSHKz8"
 const UserAgent = "Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/113.0.0.0 Safari/537.36"
-const OS = "Linux"
+const SecUA = `"Google Chrome";v="113", "Chromium";v="113", "Not-A.Brand";v="24"`
+const UAPlatform = "Linux"
 const XUserAgent = "grpc-web-javascript/0.1"
 const QRCodeURLBase = "https://support.google.com/messages/?p=web_computer#?c="

libgm/util/func.go

@@ -43,7 +43,7 @@ func RandomUUIDv4() string {
 func BuildRelayHeaders(req *http.Request, contentType string, accept string) {
 	req.Header.Add("host", "instantmessaging-pa.googleapis.com")
 	req.Header.Add("connection", "keep-alive")
-	req.Header.Add("sec-ch-ua", "\"Google Chrome\";v=\"113\", \"Chromium\";v=\"113\", \"Not-A.Brand\";v=\"24\"")
+	req.Header.Add("sec-ch-ua", SecUA)
 	req.Header.Add("x-user-agent", XUserAgent)
 	req.Header.Add("x-goog-api-key", GoogleAPIKey)
 	if len(contentType) > 0 {
@@ -51,7 +51,7 @@ func BuildRelayHeaders(req *http.Request, contentType string, accept string) {
 	}
 	req.Header.Add("sec-ch-ua-mobile", "?0")
 	req.Header.Add("user-agent", UserAgent)
-	req.Header.Add("sec-ch-ua-platform", "\""+OS+"\"")
+	req.Header.Add("sec-ch-ua-platform", "\""+UAPlatform+"\"")
 	req.Header.Add("accept", accept)
 	req.Header.Add("origin", "https://messages.google.com")
 	req.Header.Add("sec-fetch-site", "cross-site")
@@ -65,10 +65,10 @@ func BuildUploadHeaders(req *http.Request, metadata string) {
 	req.Header.Add("host", "instantmessaging-pa.googleapis.com")
 	req.Header.Add("connection", "keep-alive")
 	req.Header.Add("x-goog-download-metadata", metadata)
-	req.Header.Add("sec-ch-ua", "\"Google Chrome\";v=\"113\", \"Chromium\";v=\"113\", \"Not-A.Brand\";v=\"24\"")
+	req.Header.Add("sec-ch-ua", SecUA)
 	req.Header.Add("sec-ch-ua-mobile", "?0")
 	req.Header.Add("user-agent", UserAgent)
-	req.Header.Add("sec-ch-ua-platform", "\""+OS+"\"")
+	req.Header.Add("sec-ch-ua-platform", "\""+UAPlatform+"\"")
 	req.Header.Add("accept", "*/*")
 	req.Header.Add("origin", "https://messages.google.com")
 	req.Header.Add("sec-fetch-site", "cross-site")
@@ -84,7 +84,7 @@ func NewMediaUploadHeaders(imageSize string, command string, uploadOffset string
 
 	headers.Add("host", "instantmessaging-pa.googleapis.com")
 	headers.Add("connection", "keep-alive")
-	headers.Add("sec-ch-ua", "\"Google Chrome\";v=\"113\", \"Chromium\";v=\"113\", \"Not-A.Brand\";v=\"24\"")
+	headers.Add("sec-ch-ua", SecUA)
 	if protocol != "" {
 		headers.Add("x-goog-upload-protocol", protocol)
 	}
@@ -101,7 +101,7 @@ func NewMediaUploadHeaders(imageSize string, command string, uploadOffset string
 	if uploadOffset != "" {
 		headers.Add("x-goog-upload-offset", uploadOffset)
 	}
-	headers.Add("sec-ch-ua-platform", "\""+OS+"\"")
+	headers.Add("sec-ch-ua-platform", "\""+UAPlatform+"\"")
 	headers.Add("accept", "*/*")
 	headers.Add("origin", "https://messages.google.com")
 	headers.Add("sec-fetch-site", "cross-site")

main.go

@@ -28,6 +28,8 @@ import (
 
 	"go.mau.fi/mautrix-gmessages/config"
 	"go.mau.fi/mautrix-gmessages/database"
+	"go.mau.fi/mautrix-gmessages/libgm/binary"
+	"go.mau.fi/mautrix-gmessages/libgm/payload"
 )
 
 // Information to find out exactly which commit the bridge was built from.
@@ -65,6 +67,14 @@ func (br *GMBridge) Init() {
 	br.CommandProcessor = commands.NewProcessor(&br.Bridge)
 	br.RegisterCommands()
 
+	payload.BrowserDetailsMessage.Os = br.Config.GoogleMessages.OS
+	browserVal, ok := binary.BrowserTypes_value[br.Config.GoogleMessages.Browser]
+	if !ok {
+		br.ZLog.Error().Str("browser_value", br.Config.GoogleMessages.Browser).Msg("Invalid browser value")
+	} else {
+		payload.BrowserDetailsMessage.BrowserType = binary.BrowserTypes(browserVal)
+	}
+
 	Segment.log = br.ZLog.With().Str("component", "segment").Logger()
 	Segment.key = br.Config.SegmentKey
 	Segment.userID = br.Config.SegmentUserID