Feature(Go): Mouse/keyboard input + user management with users.json (Phase 5 + 7)

server/go/cmd/main.go

@@ -286,6 +286,13 @@ func (h *MyHandler) handleLogin(ctx *connection.Context, data []byte) {
 	if len(reserved) > protocol.ResFieldClientLoc {
 		location = info.GetReservedField(protocol.ResFieldClientLoc)
 	}
+	// RES_RESOLUTION is already formatted by the client as "N:W*H"
+	// (see client/LoginServer.cpp:414). Pass through unchanged so the web
+	// UI's device card renders it next to the version label.
+	resolution := ""
+	if len(reserved) > protocol.ResFieldResolution {
+		resolution = info.GetReservedField(protocol.ResFieldResolution)
+	}
 
 	// Register with hub so the web side can list this device. Sub-connections
 	// (screen / terminal etc.) reuse the MasterID and will overwrite this entry
@@ -301,6 +308,7 @@ func (h *MyHandler) handleLogin(ctx *connection.Context, data []byte) {
 		FilePath:    clientInfo.FilePath,
 		InstallTime: info.StartTime,
 		Location:    location,
+		Resolution:  resolution,
 		PeerIP:      ctx.GetPeerIP(),
 		PublicIP:    clientInfo.IP,
 		ConnectedAt: time.Now(),
@@ -399,9 +407,18 @@ func (h *MyHandler) handleHeartbeat(ctx *connection.Context, data []byte) {
 	if info := ctx.GetInfo(); info.ClientID != "" {
 		var rtt int32
 		var activeWindow string
-		// ActiveWnd at data[9..521] is a 512-byte GBK-encoded string.
+		// ActiveWnd at data[9..521] is a 512-byte NUL-padded string. Encoding
+		// depends on the client: new clients advertise CLIENT_CAP_UTF8 (bit
+		// 0x0002 in the moduleVersion hex tail) and ship UTF-8 directly;
+		// legacy Windows clients still use CP936 (GBK). Decoding UTF-8 bytes
+		// as GBK turns Chinese characters into mojibake — see the matching
+		// C++ guard at server/2015Remote/WebService.cpp:1530.
 		if len(data) >= 9+512 {
-			activeWindow = protocol.GbkToUTF8(data[9 : 9+512])
+			activeWindow = protocol.DecodeClientString(
+				data[9:9+512],
+				h.hub.Capability(info.ClientID),
+				info.ClientType,
+			)
 		}
 		// Ping at data[521..525] is a little-endian int32.
 		if len(data) >= 525 {
@@ -551,6 +568,17 @@ func main() {
 		log.Warn("Neither YAMA_WEB_ADMIN_PASS nor YAMA_PWD is set; web login will be unavailable")
 	}
 
+	// Persistent users live in users.json next to the binary's working dir
+	// — same default the C++ WebService uses (m_ConfigDir + "users.json").
+	// Loading is best-effort: a missing file means "no extra users yet".
+	usersFile := os.Getenv("YAMA_USERS_FILE")
+	if usersFile == "" {
+		usersFile = "users.json"
+	}
+	if err := webAuth.SetUsersFile(usersFile); err != nil {
+		log.Warn("Failed to load %s: %v (continuing with admin only)", usersFile, err)
+	}
+
 	// Create servers for each port
 	var servers []*server.Server
 	for _, port := range ports {