internal/hidrpc/hidrpc.go

@@ -42,17 +42,16 @@ const (
 func GetQueueIndex(messageType MessageType) (int, time.Duration) {
 	switch messageType {
 	case TypeHandshake:
-		return HandshakeQueue, 1 * time.Second
+		return HandshakeQueue, 1
 	case TypeKeyboardReport, TypeKeypressReport, TypeKeyboardLedState, TypeKeydownState, TypeKeyboardMacroState:
-		return KeyboardQueue, 1 * time.Second
+		return KeyboardQueue, 1
 	case TypePointerReport, TypeMouseReport, TypeWheelReport:
-		return MouseQueue, 1 * time.Second
+		return MouseQueue, 1
 	// we don't want to block the queue for these messages
 	case TypeKeyboardMacroReport, TypeCancelKeyboardMacroReport, TypeKeyboardMacroTokenState:
-		return MacroQueue, 60 * time.Second
+		return MacroQueue, 60 // 1 minute timeout
 	default:
-		return OtherQueue, 5 * time.Second
-
+		return OtherQueue, 5
 	}
 }
 

internal/hidrpc/message.go

@@ -5,7 +5,6 @@ import (
 	"fmt"
 
 	"github.com/google/uuid"
-	"github.com/jetkvm/kvm/internal/usbgadget"
 )
 
 // Message ..
@@ -136,16 +135,18 @@ func (m *Message) KeyboardReport() (KeyboardReport, error) {
 // Macro ..
 type KeyboardMacroStep struct {
 	Modifier byte   // 1 byte
-	Keys     []byte // 6 bytes: usbgadget.HidKeyBufferSize
+	Keys     []byte // 6 bytes: HidKeyBufferSize
 	Delay    uint16 // 2 bytes
 }
-
 type KeyboardMacroReport struct {
 	IsPaste   bool
 	StepCount uint32
 	Steps     []KeyboardMacroStep
 }
 
+// HidKeyBufferSize is the size of the keys buffer in the keyboard report.
+const HidKeyBufferSize int = 6
+
 // KeyboardMacroReport returns the keyboard macro report from the message.
 func (m *Message) KeyboardMacroReport() (KeyboardMacroReport, error) {
 	if m.t != TypeKeyboardMacroReport {
@@ -170,7 +171,7 @@ func (m *Message) KeyboardMacroReport() (KeyboardMacroReport, error) {
 			Delay:    binary.BigEndian.Uint16(m.d[offset+7 : offset+9]),
 		})
 
-		offset += 1 + usbgadget.HidKeyBufferSize + 2
+		offset += 1 + HidKeyBufferSize + 2
 	}
 
 	return KeyboardMacroReport{

internal/usbgadget/hid_keyboard.go

@@ -76,7 +76,7 @@ var keyboardReportDesc = []byte{
 
 const (
 	hidReadBufferSize = 8
-	HidKeyBufferSize  = 6
+	hidKeyBufferSize  = 6
 	hidErrorRollOver  = 0x01
 	// https://www.usb.org/sites/default/files/documents/hid1_11.pdf
 	// https://www.usb.org/sites/default/files/hut1_2.pdf
@@ -161,18 +161,13 @@ func (u *UsbGadget) SetOnKeysDownChange(f func(state KeysDownState)) {
 }
 
 var suspendedKeyDownMessages bool = false
-var suspendedKeyDownMessagesLock sync.Mutex
 
 func (u *UsbGadget) SuspendKeyDownMessages() {
-	suspendedKeyDownMessagesLock.Lock()
 	suspendedKeyDownMessages = true
-	suspendedKeyDownMessagesLock.Unlock()
 }
 
 func (u *UsbGadget) ResumeSuspendKeyDownMessages() {
-	suspendedKeyDownMessagesLock.Lock()
 	suspendedKeyDownMessages = false
-	suspendedKeyDownMessagesLock.Unlock()
 }
 
 func (u *UsbGadget) SetOnKeepAliveReset(f func()) {
@@ -342,7 +337,7 @@ func (u *UsbGadget) keyboardWriteHidFile(modifier byte, keys []byte) error {
 		return err
 	}
 
-	_, err := u.writeWithTimeout(u.keyboardHidFile, append([]byte{modifier, 0x00}, keys[:HidKeyBufferSize]...))
+	_, err := u.writeWithTimeout(u.keyboardHidFile, append([]byte{modifier, 0x00}, keys[:hidKeyBufferSize]...))
 	if err != nil {
 		u.logWithSuppression("keyboardWriteHidFile", 100, u.log, err, "failed to write to hidg0")
 		u.keyboardHidFile.Close()
@@ -386,11 +381,11 @@ func (u *UsbGadget) UpdateKeysDown(modifier byte, keys []byte) KeysDownState {
 func (u *UsbGadget) KeyboardReport(modifier byte, keys []byte) error {
 	defer u.resetUserInputTime()
 
-	if len(keys) > HidKeyBufferSize {
-		keys = keys[:HidKeyBufferSize]
+	if len(keys) > hidKeyBufferSize {
+		keys = keys[:hidKeyBufferSize]
 	}
-	if len(keys) < HidKeyBufferSize {
-		keys = append(keys, make([]byte, HidKeyBufferSize-len(keys))...)
+	if len(keys) < hidKeyBufferSize {
+		keys = append(keys, make([]byte, hidKeyBufferSize-len(keys))...)
 	}
 
 	err := u.keyboardWriteHidFile(modifier, keys)
@@ -473,7 +468,7 @@ func (u *UsbGadget) keypressReport(key byte, press bool) (KeysDownState, error)
 		// handle other keys that are not modifier keys by placing or removing them
 		// from the key buffer since the buffer tracks currently pressed keys
 		overrun := true
-		for i := range HidKeyBufferSize {
+		for i := range hidKeyBufferSize {
 			// If we find the key in the buffer the buffer, we either remove it (if press is false)
 			// or do nothing (if down is true) because the buffer tracks currently pressed keys
 			// and if we find a zero byte, we can place the key there (if press is true)
@@ -484,7 +479,7 @@ func (u *UsbGadget) keypressReport(key byte, press bool) (KeysDownState, error)
 					// we are releasing the key, remove it from the buffer
 					if keys[i] != 0 {
 						copy(keys[i:], keys[i+1:])
-						keys[HidKeyBufferSize-1] = 0 // Clear the last byte
+						keys[hidKeyBufferSize-1] = 0 // Clear the last byte
 					}
 				}
 				overrun = false // We found a slot for the key

internal/usbgadget/usbgadget.go

@@ -135,7 +135,7 @@ func newUsbGadget(name string, configMap map[string]gadgetConfigItem, enabledDev
 		keyboardStateCtx:     keyboardCtx,
 		keyboardStateCancel:  keyboardCancel,
 		keyboardState:        0,
-		keysDownState:        KeysDownState{Modifier: 0, Keys: []byte{0, 0, 0, 0, 0, 0}}, // must be initialized to usbgadget.HidKeyBufferSize (6) zero bytes
+		keysDownState:        KeysDownState{Modifier: 0, Keys: []byte{0, 0, 0, 0, 0, 0}}, // must be initialized to hidKeyBufferSize (6) zero bytes
 		kbdAutoReleaseTimers: make(map[byte]*time.Timer),
 		enabledDevices:       *enabledDevices,
 		lastUserInput:        time.Now(),

jsonrpc.go

@@ -1210,7 +1210,7 @@ func executeKeyboardMacro(ctx context.Context, isPaste bool, macro []hidrpc.Keyb
 		case <-ctx.Done():
 			// make sure keyboard state is reset and the client gets notified
 			gadget.ResumeSuspendKeyDownMessages()
-			err := rpcKeyboardReport(0, make([]byte, usbgadget.HidKeyBufferSize))
+			err := rpcKeyboardReport(0, make([]byte, hidrpc.HidKeyBufferSize))
 			if err != nil {
 				logger.Warn().Err(err).Msg("failed to reset keyboard state")
 			}

ui/localization/messages/da.json

@@ -331,6 +331,7 @@
     "info_relayed_by_cloudflare": "Videresendt af Cloudflare",
     "info_resolution": "Opløsning:",
     "info_scroll_lock": "Scroll Lock",
+    "info_shift": "Flytte",
     "info_usb_state": "USB-tilstand:",
     "info_video_size": "Videostørrelse:",
     "input_disabled": "Input deaktiveret",

ui/localization/messages/de.json

@@ -331,6 +331,7 @@
     "info_relayed_by_cloudflare": "Weitergeleitet von Cloudflare",
     "info_resolution": "Auflösung:",
     "info_scroll_lock": "Rollen-Taste",
+    "info_shift": "Schicht",
     "info_usb_state": "USB-Status:",
     "info_video_size": "Videogröße:",
     "input_disabled": "Eingabe deaktiviert",

ui/localization/messages/en.json

@@ -331,6 +331,7 @@
     "info_relayed_by_cloudflare": "Relayed by Cloudflare",
     "info_resolution": "Resolution:",
     "info_scroll_lock": "Scroll Lock",
+    "info_shift": "Shift",
     "info_usb_state": "USB State:",
     "info_video_size": "Video Size:",
     "input_disabled": "Input disabled",

ui/localization/messages/es.json

@@ -331,6 +331,7 @@
     "info_relayed_by_cloudflare": "Retransmitido por Cloudflare",
     "info_resolution": "Resolución:",
     "info_scroll_lock": "Bloq Despl",
+    "info_shift": "Cambio",
     "info_usb_state": "Estado USB:",
     "info_video_size": "Tamaño del vídeo:",
     "input_disabled": "Entrada deshabilitada",

ui/localization/messages/fr.json

@@ -331,6 +331,7 @@
     "info_relayed_by_cloudflare": "Relayé par Cloudflare",
     "info_resolution": "Résolution :",
     "info_scroll_lock": "Verrouillage du défilement",
+    "info_shift": "Maj",
     "info_usb_state": "État USB :",
     "info_video_size": "Taille de la vidéo :",
     "input_disabled": "Entrée désactivée",

ui/localization/messages/it.json

@@ -331,6 +331,7 @@
     "info_relayed_by_cloudflare": "Rilasciato da Cloudflare",
     "info_resolution": "Risoluzione:",
     "info_scroll_lock": "Blocco scorrimento",
+    "info_shift": "Spostare",
     "info_usb_state": "Stato USB:",
     "info_video_size": "Dimensioni video:",
     "input_disabled": "Input disabilitato",

ui/localization/messages/nb.json

@@ -331,6 +331,7 @@
     "info_relayed_by_cloudflare": "Videresendt av Cloudflare",
     "info_resolution": "Oppløsning:",
     "info_scroll_lock": "Scroll Lock",
+    "info_shift": "Skifte",
     "info_usb_state": "USB-tilstand:",
     "info_video_size": "Videostørrelse:",
     "input_disabled": "Inndata deaktivert",

ui/localization/messages/sv.json

@@ -331,6 +331,7 @@
     "info_relayed_by_cloudflare": "Vidarebefordras av Cloudflare",
     "info_resolution": "Upplösning:",
     "info_scroll_lock": "Scroll Lock",
+    "info_shift": "Flytta",
     "info_usb_state": "USB-status:",
     "info_video_size": "Videostorlek:",
     "input_disabled": "Inmatning inaktiverad",

ui/localization/messages/zh.json

@@ -331,6 +331,7 @@
     "info_relayed_by_cloudflare": "由 Cloudflare 转发",
     "info_resolution": "分辨率：",
     "info_scroll_lock": "滚动锁定",
+    "info_shift": "Shift",
     "info_usb_state": "USB 状态：",
     "info_video_size": "视频大小：",
     "input_disabled": "输入禁用",

ui/src/components/popovers/PasteModal.tsx

@@ -19,8 +19,6 @@ import { TextAreaWithLabel } from "@components/TextArea";
 // uint32 max value / 4
 const pasteMaxLength = 1073741824;
 const defaultDelay = 20;
-const minimumDelay = 10;
-const maximumDelay = 65534;
 
 export default function PasteModal() {
   const TextAreaRef = useRef<HTMLTextAreaElement>(null);
@@ -33,7 +31,7 @@ export default function PasteModal() {
   const [invalidChars, setInvalidChars] = useState<string[]>([]);
   const [delayValue, setDelayValue] = useState(defaultDelay);
   const delay = useMemo(() => {
-    if (delayValue < minimumDelay || delayValue > maximumDelay) {
+    if (delayValue < 0 || delayValue > 65534) {
       return defaultDelay;
     }
     return delayValue;
@@ -191,18 +189,18 @@ export default function PasteModal() {
                     type="number"
                     label={m.paste_modal_delay_between_keys()}
                     placeholder={m.paste_modal_delay_between_keys()}
-                    min={minimumDelay}
-                    max={maximumDelay}
+                    min={50}
+                    max={65534}
                     value={delayValue}
                     onChange={e => {
                       setDelayValue(parseInt(e.target.value, 10));
                     }}
                   />
-                  {(delayValue < minimumDelay || delayValue > maximumDelay) && (
+                  {(delayValue < defaultDelay || delayValue > 65534) && (
                     <div className="mt-2 flex items-center gap-x-2">
                       <ExclamationCircleIcon className="h-4 w-4 text-red-500 dark:text-red-400" />
                       <span className="text-xs text-red-500 dark:text-red-400">
-                        {m.paste_modal_delay_out_of_range({ min: minimumDelay, max: maximumDelay })}
+                        {m.paste_modal_delay_out_of_range({ min: 50, max: 65534 })}
                       </span>
                     </div>
                   )}

ui/src/hooks/hidRpc.ts

@@ -386,7 +386,7 @@ export class CancelKeyboardMacroReportMessage extends RpcMessage {
 
     constructor(token: string) {
         super(HID_RPC_MESSAGE_TYPES.CancelKeyboardMacroReport);
-        this.token = (token == null || token === "")
+        this.token = (token == null || token === undefined || token === "")
             ? "00000000-0000-0000-0000-000000000000"
             : token;
     }
@@ -397,11 +397,11 @@ export class CancelKeyboardMacroReportMessage extends RpcMessage {
     }
 
     public static unmarshal(data: Uint8Array): CancelKeyboardMacroReportMessage | undefined {
-        if (data.length === 0) {
+        if (data.length == 0) {
             return new CancelKeyboardMacroReportMessage("00000000-0000-0000-0000-000000000000");
         }
 
-        if (data.length !== 16) {
+        if (data.length != 16) {
             throw new Error(`Invalid cancel message length: ${data.length}`);
         }
 

ui/tools/find_duplicate_translations.py

@@ -89,7 +89,7 @@ def main(argv):
             )
 
     report = {
-        "generated_at": datetime.now().isoformat(),
+        "generated_at": datetime.utcnow().isoformat() + "Z",
         "en_json": str(en_path),
         "total_string_keys": total_keys,
         "duplicate_groups": sorted(

ui/tools/find_unused_messages.py

@@ -82,7 +82,7 @@ def main():
 
     print(f"Generating report for {len(usages)} usages ...")
     report = {
-        "generated_at": datetime.now().isoformat(),
+        "generated_at": datetime.utcnow().isoformat() + "Z",
         "en_json": str(en_path),
         "src_root": args.src,
         "total_keys": len(keys),

webrtc.go

@@ -261,8 +261,8 @@ func newSession(config SessionConfig) (*Session, error) {
 		}
 	}()
 
-	for queueIndex := range session.hidQueues {
-		go session.handleQueue(session.hidQueues[queueIndex])
+	for queue := range session.hidQueues {
+		go session.handleQueue(session.hidQueues[queue])
 	}
 
 	peerConnection.OnDataChannel(func(d *webrtc.DataChannel) {