/*
* noVNC: HTML5 VNC client
- * Copyright (C) 2019 The noVNC Authors
+ * Copyright (C) 2020 The noVNC Authors
* Licensed under MPL 2.0 (see LICENSE.txt)
*
* See README.md for usage and integration instructions.
*
*/
+import { toUnsigned32bit, toSigned32bit } from './util/int.js';
import * as Log from './util/logging.js';
-import { decodeUTF8 } from './util/strings.js';
+import { encodeUTF8, decodeUTF8 } from './util/strings.js';
import { dragThreshold } from './util/browser.js';
+import { clientToElement } from './util/element.js';
+import { setCapture } from './util/events.js';
import EventTargetMixin from './util/eventtarget.js';
import Display from "./display.js";
+import Inflator from "./inflator.js";
+import Deflator from "./deflator.js";
import Keyboard from "./input/keyboard.js";
-import Mouse from "./input/mouse.js";
+import GestureHandler from "./input/gesturehandler.js";
import Cursor from "./util/cursor.js";
import Websock from "./websock.js";
import DES from "./des.js";
import KeyTable from "./input/keysym.js";
import XtScancode from "./input/xtscancodes.js";
import { encodings } from "./encodings.js";
-import "./util/polyfill.js";
import RawDecoder from "./decoders/raw.js";
import CopyRectDecoder from "./decoders/copyrect.js";
const DISCONNECT_TIMEOUT = 3;
const DEFAULT_BACKGROUND = 'rgb(40, 40, 40)';
+// Minimum wait (ms) between two mouse moves
+const MOUSE_MOVE_DELAY = 17;
+
+// Wheel thresholds
+const WHEEL_STEP = 50; // Pixels needed for one step
+const WHEEL_LINE_HEIGHT = 19; // Assumed pixels for one line step
+
+// Gesture thresholds
+const GESTURE_ZOOMSENS = 75;
+const GESTURE_SCRLSENS = 50;
+const DOUBLE_TAP_TIMEOUT = 1000;
+const DOUBLE_TAP_THRESHOLD = 50;
+
+// Extended clipboard pseudo-encoding formats
+const extendedClipboardFormatText = 1;
+/*eslint-disable no-unused-vars */
+const extendedClipboardFormatRtf = 1 << 1;
+const extendedClipboardFormatHtml = 1 << 2;
+const extendedClipboardFormatDib = 1 << 3;
+const extendedClipboardFormatFiles = 1 << 4;
+/*eslint-enable */
+
+// Extended clipboard pseudo-encoding actions
+const extendedClipboardActionCaps = 1 << 24;
+const extendedClipboardActionRequest = 1 << 25;
+const extendedClipboardActionPeek = 1 << 26;
+const extendedClipboardActionNotify = 1 << 27;
+const extendedClipboardActionProvide = 1 << 28;
+
+
export default class RFB extends EventTargetMixin {
constructor(target, url, options) {
if (!target) {
// Connection details
options = options || {};
- this._rfb_credentials = options.credentials || {};
+ this._rfbCredentials = options.credentials || {};
this._shared = 'shared' in options ? !!options.shared : true;
this._repeaterID = options.repeaterID || '';
this._wsProtocols = options.wsProtocols || [];
// Internal state
- this._rfb_connection_state = '';
- this._rfb_init_state = '';
- this._rfb_auth_scheme = -1;
- this._rfb_clean_disconnect = true;
+ this._rfbConnectionState = '';
+ this._rfbInitState = '';
+ this._rfbAuthScheme = -1;
+ this._rfbCleanDisconnect = true;
// Server capabilities
- this._rfb_version = 0;
- this._rfb_max_version = 3.8;
- this._rfb_tightvnc = false;
- this._rfb_xvp_ver = 0;
+ this._rfbVersion = 0;
+ this._rfbMaxVersion = 3.8;
+ this._rfbTightVNC = false;
+ this._rfbVeNCryptState = 0;
+ this._rfbXvpVer = 0;
- this._fb_width = 0;
- this._fb_height = 0;
+ this._fbWidth = 0;
+ this._fbHeight = 0;
- this._fb_name = "";
+ this._fbName = "";
this._capabilities = { power: false };
this._enabledContinuousUpdates = false;
this._supportsSetDesktopSize = false;
- this._screen_id = 0;
- this._screen_flags = 0;
+ this._screenID = 0;
+ this._screenFlags = 0;
this._qemuExtKeyEventSupported = false;
+ this._clipboardText = null;
+ this._clipboardServerCapabilitiesActions = {};
+ this._clipboardServerCapabilitiesFormats = {};
+
// Internal objects
this._sock = null; // Websock object
this._display = null; // Display object
this._flushing = false; // Display flushing state
this._keyboard = null; // Keyboard input handler object
- this._mouse = null; // Mouse input handler object
+ this._gestures = null; // Gesture input handler object
// Timers
this._disconnTimer = null; // disconnection timer
this._resizeTimeout = null; // resize rate limiting
+ this._mouseMoveTimer = null;
// Decoder states
this._decoders = {};
};
// Mouse state
- this._mouse_buttonMask = 0;
- this._mouse_arr = [];
+ this._mousePos = {};
+ this._mouseButtonMask = 0;
+ this._mouseLastMoveTime = 0;
this._viewportDragging = false;
this._viewportDragPos = {};
this._viewportHasMoved = false;
+ this._accumulatedWheelDeltaX = 0;
+ this._accumulatedWheelDeltaY = 0;
+
+ // Gesture state
+ this._gestureLastTapTime = null;
+ this._gestureFirstDoubleTapEv = null;
+ this._gestureLastMagnitudeX = 0;
+ this._gestureLastMagnitudeY = 0;
// Bound event handlers
this._eventHandlers = {
focusCanvas: this._focusCanvas.bind(this),
windowResize: this._windowResize.bind(this),
+ handleMouse: this._handleMouse.bind(this),
+ handleWheel: this._handleWheel.bind(this),
+ handleGesture: this._handleGesture.bind(this),
};
// main setup
this._canvas.style.margin = 'auto';
// Some browsers add an outline on focus
this._canvas.style.outline = 'none';
- // IE miscalculates width without this :(
- this._canvas.style.flexShrink = '0';
this._canvas.width = 0;
this._canvas.height = 0;
this._canvas.tabIndex = -1;
this._keyboard = new Keyboard(this._canvas);
this._keyboard.onkeyevent = this._handleKeyEvent.bind(this);
- this._mouse = new Mouse(this._canvas);
- this._mouse.onmousebutton = this._handleMouseButton.bind(this);
- this._mouse.onmousemove = this._handleMouseMove.bind(this);
+ this._gestures = new GestureHandler();
this._sock = new Websock();
this._sock.on('message', () => {
- this._handle_message();
+ this._handleMessage();
});
this._sock.on('open', () => {
- if ((this._rfb_connection_state === 'connecting') &&
- (this._rfb_init_state === '')) {
- this._rfb_init_state = 'ProtocolVersion';
+ if ((this._rfbConnectionState === 'connecting') &&
+ (this._rfbInitState === '')) {
+ this._rfbInitState = 'ProtocolVersion';
Log.Debug("Starting VNC handshake");
} else {
this._fail("Unexpected server connection while " +
- this._rfb_connection_state);
+ this._rfbConnectionState);
}
});
this._sock.on('close', (e) => {
}
msg += ")";
}
- switch (this._rfb_connection_state) {
+ switch (this._rfbConnectionState) {
case 'connecting':
this._fail("Connection closed " + msg);
break;
Log.Warn("Specifying showDotCursor as a RFB constructor argument is deprecated");
this._showDotCursor = options.showDotCursor;
}
+
+ this._qualityLevel = 6;
+ this._compressionLevel = 2;
}
// ===== PROPERTIES =====
set viewOnly(viewOnly) {
this._viewOnly = viewOnly;
- if (this._rfb_connection_state === "connecting" ||
- this._rfb_connection_state === "connected") {
+ if (this._rfbConnectionState === "connecting" ||
+ this._rfbConnectionState === "connected") {
if (viewOnly) {
this._keyboard.ungrab();
- this._mouse.ungrab();
} else {
this._keyboard.grab();
- this._mouse.grab();
}
}
}
get capabilities() { return this._capabilities; }
- get touchButton() { return this._mouse.touchButton; }
- set touchButton(button) { this._mouse.touchButton = button; }
+ get touchButton() { return 0; }
+ set touchButton(button) { Log.Warn("Using old API!"); }
get clipViewport() { return this._clipViewport; }
set clipViewport(viewport) {
get background() { return this._screen.style.background; }
set background(cssValue) { this._screen.style.background = cssValue; }
+ get qualityLevel() {
+ return this._qualityLevel;
+ }
+ set qualityLevel(qualityLevel) {
+ if (!Number.isInteger(qualityLevel) || qualityLevel < 0 || qualityLevel > 9) {
+ Log.Error("qualityLevel must be an integer between 0 and 9");
+ return;
+ }
+
+ if (this._qualityLevel === qualityLevel) {
+ return;
+ }
+
+ this._qualityLevel = qualityLevel;
+
+ if (this._rfbConnectionState === 'connected') {
+ this._sendEncodings();
+ }
+ }
+
+ get compressionLevel() {
+ return this._compressionLevel;
+ }
+ set compressionLevel(compressionLevel) {
+ if (!Number.isInteger(compressionLevel) || compressionLevel < 0 || compressionLevel > 9) {
+ Log.Error("compressionLevel must be an integer between 0 and 9");
+ return;
+ }
+
+ if (this._compressionLevel === compressionLevel) {
+ return;
+ }
+
+ this._compressionLevel = compressionLevel;
+
+ if (this._rfbConnectionState === 'connected') {
+ this._sendEncodings();
+ }
+ }
+
// ===== PUBLIC METHODS =====
disconnect() {
}
sendCredentials(creds) {
- this._rfb_credentials = creds;
- setTimeout(this._init_msg.bind(this), 0);
+ this._rfbCredentials = creds;
+ setTimeout(this._initMsg.bind(this), 0);
}
sendCtrlAltDel() {
- if (this._rfb_connection_state !== 'connected' || this._viewOnly) { return; }
+ if (this._rfbConnectionState !== 'connected' || this._viewOnly) { return; }
Log.Info("Sending Ctrl-Alt-Del");
this.sendKey(KeyTable.XK_Control_L, "ControlLeft", true);
// Send a key press. If 'down' is not specified then send a down key
// followed by an up key.
sendKey(keysym, code, down) {
- if (this._rfb_connection_state !== 'connected' || this._viewOnly) { return; }
+ if (this._rfbConnectionState !== 'connected' || this._viewOnly) { return; }
if (down === undefined) {
this.sendKey(keysym, code, true);
}
clipboardPasteFrom(text) {
- if (this._rfb_connection_state !== 'connected' || this._viewOnly) { return; }
- RFB.messages.clientCutText(this._sock, text);
+ if (this._rfbConnectionState !== 'connected' || this._viewOnly) { return; }
+
+ if (this._clipboardServerCapabilitiesFormats[extendedClipboardFormatText] &&
+ this._clipboardServerCapabilitiesActions[extendedClipboardActionNotify]) {
+
+ this._clipboardText = text;
+ RFB.messages.extendedClipboardNotify(this._sock, [extendedClipboardFormatText]);
+ } else {
+ let data = new Uint8Array(text.length);
+ for (let i = 0; i < text.length; i++) {
+ // FIXME: text can have values outside of Latin1/Uint8
+ data[i] = text.charCodeAt(i);
+ }
+
+ RFB.messages.clientCutText(this._sock, data);
+ }
}
// ===== PRIVATE METHODS =====
// Make our elements part of the page
this._target.appendChild(this._screen);
+ this._gestures.attach(this._canvas);
+
this._cursor.attach(this._canvas);
this._refreshCursor();
this._canvas.addEventListener("mousedown", this._eventHandlers.focusCanvas);
this._canvas.addEventListener("touchstart", this._eventHandlers.focusCanvas);
+ // Mouse events
+ this._canvas.addEventListener('mousedown', this._eventHandlers.handleMouse);
+ this._canvas.addEventListener('mouseup', this._eventHandlers.handleMouse);
+ this._canvas.addEventListener('mousemove', this._eventHandlers.handleMouse);
+ // Prevent middle-click pasting (see handler for why we bind to document)
+ this._canvas.addEventListener('click', this._eventHandlers.handleMouse);
+ // preventDefault() on mousedown doesn't stop this event for some
+ // reason so we have to explicitly block it
+ this._canvas.addEventListener('contextmenu', this._eventHandlers.handleMouse);
+
+ // Wheel events
+ this._canvas.addEventListener("wheel", this._eventHandlers.handleWheel);
+
+ // Gesture events
+ this._canvas.addEventListener("gesturestart", this._eventHandlers.handleGesture);
+ this._canvas.addEventListener("gesturemove", this._eventHandlers.handleGesture);
+ this._canvas.addEventListener("gestureend", this._eventHandlers.handleGesture);
+
Log.Debug("<< RFB.connect");
}
_disconnect() {
Log.Debug(">> RFB.disconnect");
this._cursor.detach();
+ this._canvas.removeEventListener("gesturestart", this._eventHandlers.handleGesture);
+ this._canvas.removeEventListener("gesturemove", this._eventHandlers.handleGesture);
+ this._canvas.removeEventListener("gestureend", this._eventHandlers.handleGesture);
+ this._canvas.removeEventListener("wheel", this._eventHandlers.handleWheel);
+ this._canvas.removeEventListener('mousedown', this._eventHandlers.handleMouse);
+ this._canvas.removeEventListener('mouseup', this._eventHandlers.handleMouse);
+ this._canvas.removeEventListener('mousemove', this._eventHandlers.handleMouse);
+ this._canvas.removeEventListener('click', this._eventHandlers.handleMouse);
+ this._canvas.removeEventListener('contextmenu', this._eventHandlers.handleMouse);
this._canvas.removeEventListener("mousedown", this._eventHandlers.focusCanvas);
this._canvas.removeEventListener("touchstart", this._eventHandlers.focusCanvas);
window.removeEventListener('resize', this._eventHandlers.windowResize);
this._keyboard.ungrab();
- this._mouse.ungrab();
+ this._gestures.detach();
this._sock.close();
try {
this._target.removeChild(this._screen);
}
}
clearTimeout(this._resizeTimeout);
+ clearTimeout(this._mouseMoveTimer);
Log.Debug("<< RFB.disconnect");
}
_focusCanvas(event) {
- // Respect earlier handlers' request to not do side-effects
- if (event.defaultPrevented) {
- return;
- }
-
if (!this.focusOnClick) {
return;
}
}
_setDesktopName(name) {
- this._fb_name = name;
+ this._fbName = name;
this.dispatchEvent(new CustomEvent(
"desktopname",
- { detail: { name: this._fb_name } }));
+ { detail: { name: this._fbName } }));
}
_windowResize(event) {
// Update state of clipping in Display object, and make sure the
// configured viewport matches the current screen size
_updateClip() {
- const cur_clip = this._display.clipViewport;
- let new_clip = this._clipViewport;
+ const curClip = this._display.clipViewport;
+ let newClip = this._clipViewport;
if (this._scaleViewport) {
// Disable viewport clipping if we are scaling
- new_clip = false;
+ newClip = false;
}
- if (cur_clip !== new_clip) {
- this._display.clipViewport = new_clip;
+ if (curClip !== newClip) {
+ this._display.clipViewport = newClip;
}
- if (new_clip) {
+ if (newClip) {
// When clipping is enabled, the screen is limited to
// the size of the container.
const size = this._screenSize();
const size = this._screenSize();
RFB.messages.setDesktopSize(this._sock,
Math.floor(size.w), Math.floor(size.h),
- this._screen_id, this._screen_flags);
+ this._screenID, this._screenFlags);
Log.Debug('Requested new desktop size: ' +
size.w + 'x' + size.h);
* disconnected - permanent state
*/
_updateConnectionState(state) {
- const oldstate = this._rfb_connection_state;
+ const oldstate = this._rfbConnectionState;
if (state === oldstate) {
Log.Debug("Already in state '" + state + "', ignoring");
// State change actions
- this._rfb_connection_state = state;
+ this._rfbConnectionState = state;
Log.Debug("New state '" + state + "', was '" + oldstate + "'.");
case 'disconnected':
this.dispatchEvent(new CustomEvent(
"disconnect", { detail:
- { clean: this._rfb_clean_disconnect } }));
+ { clean: this._rfbCleanDisconnect } }));
break;
}
}
* should be logged but not sent to the user interface.
*/
_fail(details) {
- switch (this._rfb_connection_state) {
+ switch (this._rfbConnectionState) {
case 'disconnecting':
Log.Error("Failed when disconnecting: " + details);
break;
Log.Error("RFB failure: " + details);
break;
}
- this._rfb_clean_disconnect = false; //This is sent to the UI
+ this._rfbCleanDisconnect = false; //This is sent to the UI
// Transition to disconnected without waiting for socket to close
this._updateConnectionState('disconnecting');
{ detail: { capabilities: this._capabilities } }));
}
- _handle_message() {
+ _handleMessage() {
if (this._sock.rQlen === 0) {
- Log.Warn("handle_message called on an empty receive queue");
+ Log.Warn("handleMessage called on an empty receive queue");
return;
}
- switch (this._rfb_connection_state) {
+ switch (this._rfbConnectionState) {
case 'disconnected':
Log.Error("Got data while disconnected");
break;
if (this._flushing) {
break;
}
- if (!this._normal_msg()) {
+ if (!this._normalMsg()) {
break;
}
if (this._sock.rQlen === 0) {
}
break;
default:
- this._init_msg();
+ this._initMsg();
break;
}
}
this.sendKey(keysym, code, down);
}
- _handleMouseButton(x, y, down, bmask) {
- if (down) {
- this._mouse_buttonMask |= bmask;
- } else {
- this._mouse_buttonMask &= ~bmask;
+ _handleMouse(ev) {
+ /*
+ * We don't check connection status or viewOnly here as the
+ * mouse events might be used to control the viewport
+ */
+
+ if (ev.type === 'click') {
+ /*
+ * Note: This is only needed for the 'click' event as it fails
+ * to fire properly for the target element so we have
+ * to listen on the document element instead.
+ */
+ if (ev.target !== this._canvas) {
+ return;
+ }
}
+ // FIXME: if we're in view-only and not dragging,
+ // should we stop events?
+ ev.stopPropagation();
+ ev.preventDefault();
+
+ if ((ev.type === 'click') || (ev.type === 'contextmenu')) {
+ return;
+ }
+
+ let pos = clientToElement(ev.clientX, ev.clientY,
+ this._canvas);
+
+ switch (ev.type) {
+ case 'mousedown':
+ setCapture(this._canvas);
+ this._handleMouseButton(pos.x, pos.y,
+ true, 1 << ev.button);
+ break;
+ case 'mouseup':
+ this._handleMouseButton(pos.x, pos.y,
+ false, 1 << ev.button);
+ break;
+ case 'mousemove':
+ this._handleMouseMove(pos.x, pos.y);
+ break;
+ }
+ }
+
+ _handleMouseButton(x, y, down, bmask) {
if (this.dragViewport) {
if (down && !this._viewportDragging) {
this._viewportDragging = true;
// Otherwise we treat this as a mouse click event.
// Send the button down event here, as the button up
// event is sent at the end of this function.
- RFB.messages.pointerEvent(this._sock,
- this._display.absX(x),
- this._display.absY(y),
- bmask);
+ this._sendMouse(x, y, bmask);
}
}
- if (this._viewOnly) { return; } // View only, skip mouse events
+ // Flush waiting move event first
+ if (this._mouseMoveTimer !== null) {
+ clearTimeout(this._mouseMoveTimer);
+ this._mouseMoveTimer = null;
+ this._sendMouse(x, y, this._mouseButtonMask);
+ }
+
+ if (down) {
+ this._mouseButtonMask |= bmask;
+ } else {
+ this._mouseButtonMask &= ~bmask;
+ }
- if (this._rfb_connection_state !== 'connected') { return; }
- RFB.messages.pointerEvent(this._sock, this._display.absX(x), this._display.absY(y), this._mouse_buttonMask);
+ this._sendMouse(x, y, this._mouseButtonMask);
}
_handleMouseMove(x, y) {
return;
}
+ this._mousePos = { 'x': x, 'y': y };
+
+ // Limit many mouse move events to one every MOUSE_MOVE_DELAY ms
+ if (this._mouseMoveTimer == null) {
+
+ const timeSinceLastMove = Date.now() - this._mouseLastMoveTime;
+ if (timeSinceLastMove > MOUSE_MOVE_DELAY) {
+ this._sendMouse(x, y, this._mouseButtonMask);
+ this._mouseLastMoveTime = Date.now();
+ } else {
+ // Too soon since the latest move, wait the remaining time
+ this._mouseMoveTimer = setTimeout(() => {
+ this._handleDelayedMouseMove();
+ }, MOUSE_MOVE_DELAY - timeSinceLastMove);
+ }
+ }
+ }
+
+ _handleDelayedMouseMove() {
+ this._mouseMoveTimer = null;
+ this._sendMouse(this._mousePos.x, this._mousePos.y,
+ this._mouseButtonMask);
+ this._mouseLastMoveTime = Date.now();
+ }
+
+ _sendMouse(x, y, mask) {
+ if (this._rfbConnectionState !== 'connected') { return; }
if (this._viewOnly) { return; } // View only, skip mouse events
- if (this._rfb_connection_state !== 'connected') { return; }
- RFB.messages.pointerEvent(this._sock, this._display.absX(x), this._display.absY(y), this._mouse_buttonMask);
+ RFB.messages.pointerEvent(this._sock, this._display.absX(x),
+ this._display.absY(y), mask);
+ }
+
+ _handleWheel(ev) {
+ if (this._rfbConnectionState !== 'connected') { return; }
+ if (this._viewOnly) { return; } // View only, skip mouse events
+
+ ev.stopPropagation();
+ ev.preventDefault();
+
+ let pos = clientToElement(ev.clientX, ev.clientY,
+ this._canvas);
+
+ let dX = ev.deltaX;
+ let dY = ev.deltaY;
+
+ // Pixel units unless it's non-zero.
+ // Note that if deltamode is line or page won't matter since we aren't
+ // sending the mouse wheel delta to the server anyway.
+ // The difference between pixel and line can be important however since
+ // we have a threshold that can be smaller than the line height.
+ if (ev.deltaMode !== 0) {
+ dX *= WHEEL_LINE_HEIGHT;
+ dY *= WHEEL_LINE_HEIGHT;
+ }
+
+ // Mouse wheel events are sent in steps over VNC. This means that the VNC
+ // protocol can't handle a wheel event with specific distance or speed.
+ // Therefor, if we get a lot of small mouse wheel events we combine them.
+ this._accumulatedWheelDeltaX += dX;
+ this._accumulatedWheelDeltaY += dY;
+
+ // Generate a mouse wheel step event when the accumulated delta
+ // for one of the axes is large enough.
+ if (Math.abs(this._accumulatedWheelDeltaX) >= WHEEL_STEP) {
+ if (this._accumulatedWheelDeltaX < 0) {
+ this._handleMouseButton(pos.x, pos.y, true, 1 << 5);
+ this._handleMouseButton(pos.x, pos.y, false, 1 << 5);
+ } else if (this._accumulatedWheelDeltaX > 0) {
+ this._handleMouseButton(pos.x, pos.y, true, 1 << 6);
+ this._handleMouseButton(pos.x, pos.y, false, 1 << 6);
+ }
+
+ this._accumulatedWheelDeltaX = 0;
+ }
+ if (Math.abs(this._accumulatedWheelDeltaY) >= WHEEL_STEP) {
+ if (this._accumulatedWheelDeltaY < 0) {
+ this._handleMouseButton(pos.x, pos.y, true, 1 << 3);
+ this._handleMouseButton(pos.x, pos.y, false, 1 << 3);
+ } else if (this._accumulatedWheelDeltaY > 0) {
+ this._handleMouseButton(pos.x, pos.y, true, 1 << 4);
+ this._handleMouseButton(pos.x, pos.y, false, 1 << 4);
+ }
+
+ this._accumulatedWheelDeltaY = 0;
+ }
+ }
+
+ _fakeMouseMove(ev, elementX, elementY) {
+ this._handleMouseMove(elementX, elementY);
+ this._cursor.move(ev.detail.clientX, ev.detail.clientY);
+ }
+
+ _handleTapEvent(ev, bmask) {
+ let pos = clientToElement(ev.detail.clientX, ev.detail.clientY,
+ this._canvas);
+
+ // If the user quickly taps multiple times we assume they meant to
+ // hit the same spot, so slightly adjust coordinates
+
+ if ((this._gestureLastTapTime !== null) &&
+ ((Date.now() - this._gestureLastTapTime) < DOUBLE_TAP_TIMEOUT) &&
+ (this._gestureFirstDoubleTapEv.detail.type === ev.detail.type)) {
+ let dx = this._gestureFirstDoubleTapEv.detail.clientX - ev.detail.clientX;
+ let dy = this._gestureFirstDoubleTapEv.detail.clientY - ev.detail.clientY;
+ let distance = Math.hypot(dx, dy);
+
+ if (distance < DOUBLE_TAP_THRESHOLD) {
+ pos = clientToElement(this._gestureFirstDoubleTapEv.detail.clientX,
+ this._gestureFirstDoubleTapEv.detail.clientY,
+ this._canvas);
+ } else {
+ this._gestureFirstDoubleTapEv = ev;
+ }
+ } else {
+ this._gestureFirstDoubleTapEv = ev;
+ }
+ this._gestureLastTapTime = Date.now();
+
+ this._fakeMouseMove(this._gestureFirstDoubleTapEv, pos.x, pos.y);
+ this._handleMouseButton(pos.x, pos.y, true, bmask);
+ this._handleMouseButton(pos.x, pos.y, false, bmask);
+ }
+
+ _handleGesture(ev) {
+ let magnitude;
+
+ let pos = clientToElement(ev.detail.clientX, ev.detail.clientY,
+ this._canvas);
+ switch (ev.type) {
+ case 'gesturestart':
+ switch (ev.detail.type) {
+ case 'onetap':
+ this._handleTapEvent(ev, 0x1);
+ break;
+ case 'twotap':
+ this._handleTapEvent(ev, 0x4);
+ break;
+ case 'threetap':
+ this._handleTapEvent(ev, 0x2);
+ break;
+ case 'drag':
+ this._fakeMouseMove(ev, pos.x, pos.y);
+ this._handleMouseButton(pos.x, pos.y, true, 0x1);
+ break;
+ case 'longpress':
+ this._fakeMouseMove(ev, pos.x, pos.y);
+ this._handleMouseButton(pos.x, pos.y, true, 0x4);
+ break;
+
+ case 'twodrag':
+ this._gestureLastMagnitudeX = ev.detail.magnitudeX;
+ this._gestureLastMagnitudeY = ev.detail.magnitudeY;
+ this._fakeMouseMove(ev, pos.x, pos.y);
+ break;
+ case 'pinch':
+ this._gestureLastMagnitudeX = Math.hypot(ev.detail.magnitudeX,
+ ev.detail.magnitudeY);
+ this._fakeMouseMove(ev, pos.x, pos.y);
+ break;
+ }
+ break;
+
+ case 'gesturemove':
+ switch (ev.detail.type) {
+ case 'onetap':
+ case 'twotap':
+ case 'threetap':
+ break;
+ case 'drag':
+ case 'longpress':
+ this._fakeMouseMove(ev, pos.x, pos.y);
+ break;
+ case 'twodrag':
+ // Always scroll in the same position.
+ // We don't know if the mouse was moved so we need to move it
+ // every update.
+ this._fakeMouseMove(ev, pos.x, pos.y);
+ while ((ev.detail.magnitudeY - this._gestureLastMagnitudeY) > GESTURE_SCRLSENS) {
+ this._handleMouseButton(pos.x, pos.y, true, 0x8);
+ this._handleMouseButton(pos.x, pos.y, false, 0x8);
+ this._gestureLastMagnitudeY += GESTURE_SCRLSENS;
+ }
+ while ((ev.detail.magnitudeY - this._gestureLastMagnitudeY) < -GESTURE_SCRLSENS) {
+ this._handleMouseButton(pos.x, pos.y, true, 0x10);
+ this._handleMouseButton(pos.x, pos.y, false, 0x10);
+ this._gestureLastMagnitudeY -= GESTURE_SCRLSENS;
+ }
+ while ((ev.detail.magnitudeX - this._gestureLastMagnitudeX) > GESTURE_SCRLSENS) {
+ this._handleMouseButton(pos.x, pos.y, true, 0x20);
+ this._handleMouseButton(pos.x, pos.y, false, 0x20);
+ this._gestureLastMagnitudeX += GESTURE_SCRLSENS;
+ }
+ while ((ev.detail.magnitudeX - this._gestureLastMagnitudeX) < -GESTURE_SCRLSENS) {
+ this._handleMouseButton(pos.x, pos.y, true, 0x40);
+ this._handleMouseButton(pos.x, pos.y, false, 0x40);
+ this._gestureLastMagnitudeX -= GESTURE_SCRLSENS;
+ }
+ break;
+ case 'pinch':
+ // Always scroll in the same position.
+ // We don't know if the mouse was moved so we need to move it
+ // every update.
+ this._fakeMouseMove(ev, pos.x, pos.y);
+ magnitude = Math.hypot(ev.detail.magnitudeX, ev.detail.magnitudeY);
+ if (Math.abs(magnitude - this._gestureLastMagnitudeX) > GESTURE_ZOOMSENS) {
+ this._handleKeyEvent(KeyTable.XK_Control_L, "ControlLeft", true);
+ while ((magnitude - this._gestureLastMagnitudeX) > GESTURE_ZOOMSENS) {
+ this._handleMouseButton(pos.x, pos.y, true, 0x8);
+ this._handleMouseButton(pos.x, pos.y, false, 0x8);
+ this._gestureLastMagnitudeX += GESTURE_ZOOMSENS;
+ }
+ while ((magnitude - this._gestureLastMagnitudeX) < -GESTURE_ZOOMSENS) {
+ this._handleMouseButton(pos.x, pos.y, true, 0x10);
+ this._handleMouseButton(pos.x, pos.y, false, 0x10);
+ this._gestureLastMagnitudeX -= GESTURE_ZOOMSENS;
+ }
+ }
+ this._handleKeyEvent(KeyTable.XK_Control_L, "ControlLeft", false);
+ break;
+ }
+ break;
+
+ case 'gestureend':
+ switch (ev.detail.type) {
+ case 'onetap':
+ case 'twotap':
+ case 'threetap':
+ case 'pinch':
+ case 'twodrag':
+ break;
+ case 'drag':
+ this._fakeMouseMove(ev, pos.x, pos.y);
+ this._handleMouseButton(pos.x, pos.y, false, 0x1);
+ break;
+ case 'longpress':
+ this._fakeMouseMove(ev, pos.x, pos.y);
+ this._handleMouseButton(pos.x, pos.y, false, 0x4);
+ break;
+ }
+ break;
+ }
}
// Message Handlers
- _negotiate_protocol_version() {
+ _negotiateProtocolVersion() {
if (this._sock.rQwait("version", 12)) {
return false;
}
const sversion = this._sock.rQshiftStr(12).substr(4, 7);
Log.Info("Server ProtocolVersion: " + sversion);
- let is_repeater = 0;
+ let isRepeater = 0;
switch (sversion) {
case "000.000": // UltraVNC repeater
- is_repeater = 1;
+ isRepeater = 1;
break;
case "003.003":
case "003.006": // UltraVNC
case "003.889": // Apple Remote Desktop
- this._rfb_version = 3.3;
+ this._rfbVersion = 3.3;
break;
case "003.007":
- this._rfb_version = 3.7;
+ this._rfbVersion = 3.7;
break;
case "003.008":
case "004.000": // Intel AMT KVM
case "004.001": // RealVNC 4.6
case "005.000": // RealVNC 5.3
- this._rfb_version = 3.8;
+ this._rfbVersion = 3.8;
break;
default:
return this._fail("Invalid server version " + sversion);
}
- if (is_repeater) {
+ if (isRepeater) {
let repeaterID = "ID:" + this._repeaterID;
while (repeaterID.length < 250) {
repeaterID += "\0";
}
- this._sock.send_string(repeaterID);
+ this._sock.sendString(repeaterID);
return true;
}
- if (this._rfb_version > this._rfb_max_version) {
- this._rfb_version = this._rfb_max_version;
+ if (this._rfbVersion > this._rfbMaxVersion) {
+ this._rfbVersion = this._rfbMaxVersion;
}
- const cversion = "00" + parseInt(this._rfb_version, 10) +
- ".00" + ((this._rfb_version * 10) % 10);
- this._sock.send_string("RFB " + cversion + "\n");
+ const cversion = "00" + parseInt(this._rfbVersion, 10) +
+ ".00" + ((this._rfbVersion * 10) % 10);
+ this._sock.sendString("RFB " + cversion + "\n");
Log.Debug('Sent ProtocolVersion: ' + cversion);
- this._rfb_init_state = 'Security';
+ this._rfbInitState = 'Security';
}
- _negotiate_security() {
- // Polyfill since IE and PhantomJS doesn't have
- // TypedArray.includes()
- function includes(item, array) {
- for (let i = 0; i < array.length; i++) {
- if (array[i] === item) {
- return true;
- }
- }
- return false;
- }
-
- if (this._rfb_version >= 3.7) {
+ _negotiateSecurity() {
+ if (this._rfbVersion >= 3.7) {
// Server sends supported list, client decides
- const num_types = this._sock.rQshift8();
- if (this._sock.rQwait("security type", num_types, 1)) { return false; }
-
- if (num_types === 0) {
- this._rfb_init_state = "SecurityReason";
- this._security_context = "no security types";
- this._security_status = 1;
- return this._init_msg();
+ const numTypes = this._sock.rQshift8();
+ if (this._sock.rQwait("security type", numTypes, 1)) { return false; }
+
+ if (numTypes === 0) {
+ this._rfbInitState = "SecurityReason";
+ this._securityContext = "no security types";
+ this._securityStatus = 1;
+ return this._initMsg();
}
- const types = this._sock.rQshiftBytes(num_types);
+ const types = this._sock.rQshiftBytes(numTypes);
Log.Debug("Server security types: " + types);
// Look for each auth in preferred order
- if (includes(1, types)) {
- this._rfb_auth_scheme = 1; // None
- } else if (includes(22, types)) {
- this._rfb_auth_scheme = 22; // XVP
- } else if (includes(16, types)) {
- this._rfb_auth_scheme = 16; // Tight
- } else if (includes(2, types)) {
- this._rfb_auth_scheme = 2; // VNC Auth
+ if (types.includes(1)) {
+ this._rfbAuthScheme = 1; // None
+ } else if (types.includes(22)) {
+ this._rfbAuthScheme = 22; // XVP
+ } else if (types.includes(16)) {
+ this._rfbAuthScheme = 16; // Tight
+ } else if (types.includes(2)) {
+ this._rfbAuthScheme = 2; // VNC Auth
+ } else if (types.includes(19)) {
+ this._rfbAuthScheme = 19; // VeNCrypt Auth
} else {
return this._fail("Unsupported security types (types: " + types + ")");
}
- this._sock.send([this._rfb_auth_scheme]);
+ this._sock.send([this._rfbAuthScheme]);
} else {
// Server decides
if (this._sock.rQwait("security scheme", 4)) { return false; }
- this._rfb_auth_scheme = this._sock.rQshift32();
+ this._rfbAuthScheme = this._sock.rQshift32();
- if (this._rfb_auth_scheme == 0) {
- this._rfb_init_state = "SecurityReason";
- this._security_context = "authentication scheme";
- this._security_status = 1;
- return this._init_msg();
+ if (this._rfbAuthScheme == 0) {
+ this._rfbInitState = "SecurityReason";
+ this._securityContext = "authentication scheme";
+ this._securityStatus = 1;
+ return this._initMsg();
}
}
- this._rfb_init_state = 'Authentication';
- Log.Debug('Authenticating using scheme: ' + this._rfb_auth_scheme);
+ this._rfbInitState = 'Authentication';
+ Log.Debug('Authenticating using scheme: ' + this._rfbAuthScheme);
- return this._init_msg(); // jump to authentication
+ return this._initMsg(); // jump to authentication
}
- _handle_security_reason() {
+ _handleSecurityReason() {
if (this._sock.rQwait("reason length", 4)) {
return false;
}
if (reason !== "") {
this.dispatchEvent(new CustomEvent(
"securityfailure",
- { detail: { status: this._security_status,
+ { detail: { status: this._securityStatus,
reason: reason } }));
return this._fail("Security negotiation failed on " +
- this._security_context +
+ this._securityContext +
" (reason: " + reason + ")");
} else {
this.dispatchEvent(new CustomEvent(
"securityfailure",
- { detail: { status: this._security_status } }));
+ { detail: { status: this._securityStatus } }));
return this._fail("Security negotiation failed on " +
- this._security_context);
+ this._securityContext);
}
}
// authentication
- _negotiate_xvp_auth() {
- if (this._rfb_credentials.username === undefined ||
- this._rfb_credentials.password === undefined ||
- this._rfb_credentials.target === undefined) {
+ _negotiateXvpAuth() {
+ if (this._rfbCredentials.username === undefined ||
+ this._rfbCredentials.password === undefined ||
+ this._rfbCredentials.target === undefined) {
this.dispatchEvent(new CustomEvent(
"credentialsrequired",
{ detail: { types: ["username", "password", "target"] } }));
return false;
}
- const xvp_auth_str = String.fromCharCode(this._rfb_credentials.username.length) +
- String.fromCharCode(this._rfb_credentials.target.length) +
- this._rfb_credentials.username +
- this._rfb_credentials.target;
- this._sock.send_string(xvp_auth_str);
- this._rfb_auth_scheme = 2;
- return this._negotiate_authentication();
+ const xvpAuthStr = String.fromCharCode(this._rfbCredentials.username.length) +
+ String.fromCharCode(this._rfbCredentials.target.length) +
+ this._rfbCredentials.username +
+ this._rfbCredentials.target;
+ this._sock.sendString(xvpAuthStr);
+ this._rfbAuthScheme = 2;
+ return this._negotiateAuthentication();
}
- _negotiate_std_vnc_auth() {
+ // VeNCrypt authentication, currently only supports version 0.2 and only Plain subtype
+ _negotiateVeNCryptAuth() {
+
+ // waiting for VeNCrypt version
+ if (this._rfbVeNCryptState == 0) {
+ if (this._sock.rQwait("vencrypt version", 2)) { return false; }
+
+ const major = this._sock.rQshift8();
+ const minor = this._sock.rQshift8();
+
+ if (!(major == 0 && minor == 2)) {
+ return this._fail("Unsupported VeNCrypt version " + major + "." + minor);
+ }
+
+ this._sock.send([0, 2]);
+ this._rfbVeNCryptState = 1;
+ }
+
+ // waiting for ACK
+ if (this._rfbVeNCryptState == 1) {
+ if (this._sock.rQwait("vencrypt ack", 1)) { return false; }
+
+ const res = this._sock.rQshift8();
+
+ if (res != 0) {
+ return this._fail("VeNCrypt failure " + res);
+ }
+
+ this._rfbVeNCryptState = 2;
+ }
+ // must fall through here (i.e. no "else if"), beacause we may have already received
+ // the subtypes length and won't be called again
+
+ if (this._rfbVeNCryptState == 2) { // waiting for subtypes length
+ if (this._sock.rQwait("vencrypt subtypes length", 1)) { return false; }
+
+ const subtypesLength = this._sock.rQshift8();
+ if (subtypesLength < 1) {
+ return this._fail("VeNCrypt subtypes empty");
+ }
+
+ this._rfbVeNCryptSubtypesLength = subtypesLength;
+ this._rfbVeNCryptState = 3;
+ }
+
+ // waiting for subtypes list
+ if (this._rfbVeNCryptState == 3) {
+ if (this._sock.rQwait("vencrypt subtypes", 4 * this._rfbVeNCryptSubtypesLength)) { return false; }
+
+ const subtypes = [];
+ for (let i = 0; i < this._rfbVeNCryptSubtypesLength; i++) {
+ subtypes.push(this._sock.rQshift32());
+ }
+
+ // 256 = Plain subtype
+ if (subtypes.indexOf(256) != -1) {
+ // 0x100 = 256
+ this._sock.send([0, 0, 1, 0]);
+ this._rfbVeNCryptState = 4;
+ } else {
+ return this._fail("VeNCrypt Plain subtype not offered by server");
+ }
+ }
+
+ // negotiated Plain subtype, server waits for password
+ if (this._rfbVeNCryptState == 4) {
+ if (!this._rfbCredentials.username ||
+ !this._rfbCredentials.password) {
+ this.dispatchEvent(new CustomEvent(
+ "credentialsrequired",
+ { detail: { types: ["username", "password"] } }));
+ return false;
+ }
+
+ const user = encodeUTF8(this._rfbCredentials.username);
+ const pass = encodeUTF8(this._rfbCredentials.password);
+
+ // XXX we assume lengths are <= 255 (should not be an issue in the real world)
+ this._sock.send([0, 0, 0, user.length]);
+ this._sock.send([0, 0, 0, pass.length]);
+ this._sock.sendString(user);
+ this._sock.sendString(pass);
+
+ this._rfbInitState = "SecurityResult";
+ return true;
+ }
+ }
+
+ _negotiateStdVNCAuth() {
if (this._sock.rQwait("auth challenge", 16)) { return false; }
- if (this._rfb_credentials.password === undefined) {
+ if (this._rfbCredentials.password === undefined) {
this.dispatchEvent(new CustomEvent(
"credentialsrequired",
{ detail: { types: ["password"] } }));
// TODO(directxman12): make genDES not require an Array
const challenge = Array.prototype.slice.call(this._sock.rQshiftBytes(16));
- const response = RFB.genDES(this._rfb_credentials.password, challenge);
+ const response = RFB.genDES(this._rfbCredentials.password, challenge);
this._sock.send(response);
- this._rfb_init_state = "SecurityResult";
+ this._rfbInitState = "SecurityResult";
return true;
}
- _negotiate_tight_tunnels(numTunnels) {
+ _negotiateTightUnixAuth() {
+ if (this._rfbCredentials.username === undefined ||
+ this._rfbCredentials.password === undefined) {
+ this.dispatchEvent(new CustomEvent(
+ "credentialsrequired",
+ { detail: { types: ["username", "password"] } }));
+ return false;
+ }
+
+ this._sock.send([0, 0, 0, this._rfbCredentials.username.length]);
+ this._sock.send([0, 0, 0, this._rfbCredentials.password.length]);
+ this._sock.sendString(this._rfbCredentials.username);
+ this._sock.sendString(this._rfbCredentials.password);
+ this._rfbInitState = "SecurityResult";
+ return true;
+ }
+
+ _negotiateTightTunnels(numTunnels) {
const clientSupportedTunnelTypes = {
0: { vendor: 'TGHT', signature: 'NOTUNNEL' }
};
const serverSupportedTunnelTypes = {};
// receive tunnel capabilities
for (let i = 0; i < numTunnels; i++) {
- const cap_code = this._sock.rQshift32();
- const cap_vendor = this._sock.rQshiftStr(4);
- const cap_signature = this._sock.rQshiftStr(8);
- serverSupportedTunnelTypes[cap_code] = { vendor: cap_vendor, signature: cap_signature };
+ const capCode = this._sock.rQshift32();
+ const capVendor = this._sock.rQshiftStr(4);
+ const capSignature = this._sock.rQshiftStr(8);
+ serverSupportedTunnelTypes[capCode] = { vendor: capVendor, signature: capSignature };
}
Log.Debug("Server Tight tunnel types: " + serverSupportedTunnelTypes);
}
}
- _negotiate_tight_auth() {
- if (!this._rfb_tightvnc) { // first pass, do the tunnel negotiation
+ _negotiateTightAuth() {
+ if (!this._rfbTightVNC) { // first pass, do the tunnel negotiation
if (this._sock.rQwait("num tunnels", 4)) { return false; }
const numTunnels = this._sock.rQshift32();
if (numTunnels > 0 && this._sock.rQwait("tunnel capabilities", 16 * numTunnels, 4)) { return false; }
- this._rfb_tightvnc = true;
+ this._rfbTightVNC = true;
if (numTunnels > 0) {
- this._negotiate_tight_tunnels(numTunnels);
+ this._negotiateTightTunnels(numTunnels);
return false; // wait until we receive the sub auth to continue
}
}
if (this._sock.rQwait("sub auth count", 4)) { return false; }
const subAuthCount = this._sock.rQshift32();
if (subAuthCount === 0) { // empty sub-auth list received means 'no auth' subtype selected
- this._rfb_init_state = 'SecurityResult';
+ this._rfbInitState = 'SecurityResult';
return true;
}
const clientSupportedTypes = {
'STDVNOAUTH__': 1,
- 'STDVVNCAUTH_': 2
+ 'STDVVNCAUTH_': 2,
+ 'TGHTULGNAUTH': 129
};
const serverSupportedTypes = [];
switch (authType) {
case 'STDVNOAUTH__': // no auth
- this._rfb_init_state = 'SecurityResult';
+ this._rfbInitState = 'SecurityResult';
return true;
case 'STDVVNCAUTH_': // VNC auth
- this._rfb_auth_scheme = 2;
- return this._init_msg();
+ this._rfbAuthScheme = 2;
+ return this._initMsg();
+ case 'TGHTULGNAUTH': // UNIX auth
+ this._rfbAuthScheme = 129;
+ return this._initMsg();
default:
return this._fail("Unsupported tiny auth scheme " +
"(scheme: " + authType + ")");
return this._fail("No supported sub-auth types!");
}
- _negotiate_authentication() {
- switch (this._rfb_auth_scheme) {
+ _negotiateAuthentication() {
+ switch (this._rfbAuthScheme) {
case 1: // no auth
- if (this._rfb_version >= 3.8) {
- this._rfb_init_state = 'SecurityResult';
+ if (this._rfbVersion >= 3.8) {
+ this._rfbInitState = 'SecurityResult';
return true;
}
- this._rfb_init_state = 'ClientInitialisation';
- return this._init_msg();
+ this._rfbInitState = 'ClientInitialisation';
+ return this._initMsg();
case 22: // XVP auth
- return this._negotiate_xvp_auth();
+ return this._negotiateXvpAuth();
case 2: // VNC authentication
- return this._negotiate_std_vnc_auth();
+ return this._negotiateStdVNCAuth();
case 16: // TightVNC Security Type
- return this._negotiate_tight_auth();
+ return this._negotiateTightAuth();
+
+ case 19: // VeNCrypt Security Type
+ return this._negotiateVeNCryptAuth();
+
+ case 129: // TightVNC UNIX Security Type
+ return this._negotiateTightUnixAuth();
default:
return this._fail("Unsupported auth scheme (scheme: " +
- this._rfb_auth_scheme + ")");
+ this._rfbAuthScheme + ")");
}
}
- _handle_security_result() {
+ _handleSecurityResult() {
if (this._sock.rQwait('VNC auth response ', 4)) { return false; }
const status = this._sock.rQshift32();
if (status === 0) { // OK
- this._rfb_init_state = 'ClientInitialisation';
+ this._rfbInitState = 'ClientInitialisation';
Log.Debug('Authentication OK');
- return this._init_msg();
+ return this._initMsg();
} else {
- if (this._rfb_version >= 3.8) {
- this._rfb_init_state = "SecurityReason";
- this._security_context = "security result";
- this._security_status = status;
- return this._init_msg();
+ if (this._rfbVersion >= 3.8) {
+ this._rfbInitState = "SecurityReason";
+ this._securityContext = "security result";
+ this._securityStatus = status;
+ return this._initMsg();
} else {
this.dispatchEvent(new CustomEvent(
"securityfailure",
}
}
- _negotiate_server_init() {
+ _negotiateServerInit() {
if (this._sock.rQwait("server initialization", 24)) { return false; }
/* Screen size */
/* PIXEL_FORMAT */
const bpp = this._sock.rQshift8();
const depth = this._sock.rQshift8();
- const big_endian = this._sock.rQshift8();
- const true_color = this._sock.rQshift8();
-
- const red_max = this._sock.rQshift16();
- const green_max = this._sock.rQshift16();
- const blue_max = this._sock.rQshift16();
- const red_shift = this._sock.rQshift8();
- const green_shift = this._sock.rQshift8();
- const blue_shift = this._sock.rQshift8();
+ const bigEndian = this._sock.rQshift8();
+ const trueColor = this._sock.rQshift8();
+
+ const redMax = this._sock.rQshift16();
+ const greenMax = this._sock.rQshift16();
+ const blueMax = this._sock.rQshift16();
+ const redShift = this._sock.rQshift8();
+ const greenShift = this._sock.rQshift8();
+ const blueShift = this._sock.rQshift8();
this._sock.rQskipBytes(3); // padding
// NB(directxman12): we don't want to call any callbacks or print messages until
// *after* we're past the point where we could backtrack
/* Connection name/title */
- const name_length = this._sock.rQshift32();
- if (this._sock.rQwait('server init name', name_length, 24)) { return false; }
- let name = decodeUTF8(this._sock.rQshiftStr(name_length));
+ const nameLength = this._sock.rQshift32();
+ if (this._sock.rQwait('server init name', nameLength, 24)) { return false; }
+ let name = this._sock.rQshiftStr(nameLength);
+ name = decodeUTF8(name, true);
- if (this._rfb_tightvnc) {
- if (this._sock.rQwait('TightVNC extended server init header', 8, 24 + name_length)) { return false; }
+ if (this._rfbTightVNC) {
+ if (this._sock.rQwait('TightVNC extended server init header', 8, 24 + nameLength)) { return false; }
// In TightVNC mode, ServerInit message is extended
const numServerMessages = this._sock.rQshift16();
const numClientMessages = this._sock.rQshift16();
this._sock.rQskipBytes(2); // padding
const totalMessagesLength = (numServerMessages + numClientMessages + numEncodings) * 16;
- if (this._sock.rQwait('TightVNC extended server init header', totalMessagesLength, 32 + name_length)) { return false; }
+ if (this._sock.rQwait('TightVNC extended server init header', totalMessagesLength, 32 + nameLength)) { return false; }
// we don't actually do anything with the capability information that TIGHT sends,
// so we just skip the all of this.
// if we backtrack
Log.Info("Screen: " + width + "x" + height +
", bpp: " + bpp + ", depth: " + depth +
- ", big_endian: " + big_endian +
- ", true_color: " + true_color +
- ", red_max: " + red_max +
- ", green_max: " + green_max +
- ", blue_max: " + blue_max +
- ", red_shift: " + red_shift +
- ", green_shift: " + green_shift +
- ", blue_shift: " + blue_shift);
+ ", bigEndian: " + bigEndian +
+ ", trueColor: " + trueColor +
+ ", redMax: " + redMax +
+ ", greenMax: " + greenMax +
+ ", blueMax: " + blueMax +
+ ", redShift: " + redShift +
+ ", greenShift: " + greenShift +
+ ", blueShift: " + blueShift);
// we're past the point where we could backtrack, so it's safe to call this
this._setDesktopName(name);
this._resize(width, height);
if (!this._viewOnly) { this._keyboard.grab(); }
- if (!this._viewOnly) { this._mouse.grab(); }
- this._fb_depth = 24;
+ this._fbDepth = 24;
- if (this._fb_name === "Intel(r) AMT KVM") {
+ if (this._fbName === "Intel(r) AMT KVM") {
Log.Warn("Intel AMT KVM only supports 8/16 bit depths. Using low color mode.");
- this._fb_depth = 8;
+ this._fbDepth = 8;
}
- RFB.messages.pixelFormat(this._sock, this._fb_depth, true);
+ RFB.messages.pixelFormat(this._sock, this._fbDepth, true);
this._sendEncodings();
- RFB.messages.fbUpdateRequest(this._sock, false, 0, 0, this._fb_width, this._fb_height);
+ RFB.messages.fbUpdateRequest(this._sock, false, 0, 0, this._fbWidth, this._fbHeight);
this._updateConnectionState('connected');
return true;
// In preference order
encs.push(encodings.encodingCopyRect);
// Only supported with full depth support
- if (this._fb_depth == 24) {
+ if (this._fbDepth == 24) {
encs.push(encodings.encodingTight);
encs.push(encodings.encodingTightPNG);
encs.push(encodings.encodingHextile);
encs.push(encodings.encodingRaw);
// Psuedo-encoding settings
- encs.push(encodings.pseudoEncodingQualityLevel0 + 6);
- encs.push(encodings.pseudoEncodingCompressLevel0 + 2);
+ encs.push(encodings.pseudoEncodingQualityLevel0 + this._qualityLevel);
+ encs.push(encodings.pseudoEncodingCompressLevel0 + this._compressionLevel);
encs.push(encodings.pseudoEncodingDesktopSize);
encs.push(encodings.pseudoEncodingLastRect);
encs.push(encodings.pseudoEncodingFence);
encs.push(encodings.pseudoEncodingContinuousUpdates);
encs.push(encodings.pseudoEncodingDesktopName);
+ encs.push(encodings.pseudoEncodingExtendedClipboard);
- if (this._fb_depth == 24) {
+ if (this._fbDepth == 24) {
encs.push(encodings.pseudoEncodingVMwareCursor);
encs.push(encodings.pseudoEncodingCursor);
}
* ClientInitialization - not triggered by server message
* ServerInitialization
*/
- _init_msg() {
- switch (this._rfb_init_state) {
+ _initMsg() {
+ switch (this._rfbInitState) {
case 'ProtocolVersion':
- return this._negotiate_protocol_version();
+ return this._negotiateProtocolVersion();
case 'Security':
- return this._negotiate_security();
+ return this._negotiateSecurity();
case 'Authentication':
- return this._negotiate_authentication();
+ return this._negotiateAuthentication();
case 'SecurityResult':
- return this._handle_security_result();
+ return this._handleSecurityResult();
case 'SecurityReason':
- return this._handle_security_reason();
+ return this._handleSecurityReason();
case 'ClientInitialisation':
this._sock.send([this._shared ? 1 : 0]); // ClientInitialisation
- this._rfb_init_state = 'ServerInitialisation';
+ this._rfbInitState = 'ServerInitialisation';
return true;
case 'ServerInitialisation':
- return this._negotiate_server_init();
+ return this._negotiateServerInit();
default:
return this._fail("Unknown init state (state: " +
- this._rfb_init_state + ")");
+ this._rfbInitState + ")");
}
}
- _handle_set_colour_map_msg() {
+ _handleSetColourMapMsg() {
Log.Debug("SetColorMapEntries");
return this._fail("Unexpected SetColorMapEntries message");
}
- _handle_server_cut_text() {
+ _handleServerCutText() {
Log.Debug("ServerCutText");
if (this._sock.rQwait("ServerCutText header", 7, 1)) { return false; }
+
this._sock.rQskipBytes(3); // Padding
- const length = this._sock.rQshift32();
- if (this._sock.rQwait("ServerCutText", length, 8)) { return false; }
- const text = this._sock.rQshiftStr(length);
+ let length = this._sock.rQshift32();
+ length = toSigned32bit(length);
- if (this._viewOnly) { return true; }
+ if (this._sock.rQwait("ServerCutText content", Math.abs(length), 8)) { return false; }
- this.dispatchEvent(new CustomEvent(
- "clipboard",
- { detail: { text: text } }));
+ if (length >= 0) {
+ //Standard msg
+ const text = this._sock.rQshiftStr(length);
+ if (this._viewOnly) {
+ return true;
+ }
+
+ this.dispatchEvent(new CustomEvent(
+ "clipboard",
+ { detail: { text: text } }));
+
+ } else {
+ //Extended msg.
+ length = Math.abs(length);
+ const flags = this._sock.rQshift32();
+ let formats = flags & 0x0000FFFF;
+ let actions = flags & 0xFF000000;
+
+ let isCaps = (!!(actions & extendedClipboardActionCaps));
+ if (isCaps) {
+ this._clipboardServerCapabilitiesFormats = {};
+ this._clipboardServerCapabilitiesActions = {};
+
+ // Update our server capabilities for Formats
+ for (let i = 0; i <= 15; i++) {
+ let index = 1 << i;
+
+ // Check if format flag is set.
+ if ((formats & index)) {
+ this._clipboardServerCapabilitiesFormats[index] = true;
+ // We don't send unsolicited clipboard, so we
+ // ignore the size
+ this._sock.rQshift32();
+ }
+ }
+
+ // Update our server capabilities for Actions
+ for (let i = 24; i <= 31; i++) {
+ let index = 1 << i;
+ this._clipboardServerCapabilitiesActions[index] = !!(actions & index);
+ }
+
+ /* Caps handling done, send caps with the clients
+ capabilities set as a response */
+ let clientActions = [
+ extendedClipboardActionCaps,
+ extendedClipboardActionRequest,
+ extendedClipboardActionPeek,
+ extendedClipboardActionNotify,
+ extendedClipboardActionProvide
+ ];
+ RFB.messages.extendedClipboardCaps(this._sock, clientActions, {extendedClipboardFormatText: 0});
+
+ } else if (actions === extendedClipboardActionRequest) {
+ if (this._viewOnly) {
+ return true;
+ }
+
+ // Check if server has told us it can handle Provide and there is clipboard data to send.
+ if (this._clipboardText != null &&
+ this._clipboardServerCapabilitiesActions[extendedClipboardActionProvide]) {
+
+ if (formats & extendedClipboardFormatText) {
+ RFB.messages.extendedClipboardProvide(this._sock, [extendedClipboardFormatText], [this._clipboardText]);
+ }
+ }
+
+ } else if (actions === extendedClipboardActionPeek) {
+ if (this._viewOnly) {
+ return true;
+ }
+
+ if (this._clipboardServerCapabilitiesActions[extendedClipboardActionNotify]) {
+
+ if (this._clipboardText != null) {
+ RFB.messages.extendedClipboardNotify(this._sock, [extendedClipboardFormatText]);
+ } else {
+ RFB.messages.extendedClipboardNotify(this._sock, []);
+ }
+ }
+
+ } else if (actions === extendedClipboardActionNotify) {
+ if (this._viewOnly) {
+ return true;
+ }
+
+ if (this._clipboardServerCapabilitiesActions[extendedClipboardActionRequest]) {
+
+ if (formats & extendedClipboardFormatText) {
+ RFB.messages.extendedClipboardRequest(this._sock, [extendedClipboardFormatText]);
+ }
+ }
+
+ } else if (actions === extendedClipboardActionProvide) {
+ if (this._viewOnly) {
+ return true;
+ }
+ if (!(formats & extendedClipboardFormatText)) {
+ return true;
+ }
+ // Ignore what we had in our clipboard client side.
+ this._clipboardText = null;
+
+ // FIXME: Should probably verify that this data was actually requested
+ let zlibStream = this._sock.rQshiftBytes(length - 4);
+ let streamInflator = new Inflator();
+ let textData = null;
+
+ streamInflator.setInput(zlibStream);
+ for (let i = 0; i <= 15; i++) {
+ let format = 1 << i;
+
+ if (formats & format) {
+
+ let size = 0x00;
+ let sizeArray = streamInflator.inflate(4);
+
+ size |= (sizeArray[0] << 24);
+ size |= (sizeArray[1] << 16);
+ size |= (sizeArray[2] << 8);
+ size |= (sizeArray[3]);
+ let chunk = streamInflator.inflate(size);
+
+ if (format === extendedClipboardFormatText) {
+ textData = chunk;
+ }
+ }
+ }
+ streamInflator.setInput(null);
+
+ if (textData !== null) {
+ let tmpText = "";
+ for (let i = 0; i < textData.length; i++) {
+ tmpText += String.fromCharCode(textData[i]);
+ }
+ textData = tmpText;
+
+ textData = decodeUTF8(textData);
+ if ((textData.length > 0) && "\0" === textData.charAt(textData.length - 1)) {
+ textData = textData.slice(0, -1);
+ }
+
+ textData = textData.replace("\r\n", "\n");
+
+ this.dispatchEvent(new CustomEvent(
+ "clipboard",
+ { detail: { text: textData } }));
+ }
+ } else {
+ return this._fail("Unexpected action in extended clipboard message: " + actions);
+ }
+ }
return true;
}
- _handle_server_fence_msg() {
+ _handleServerFenceMsg() {
if (this._sock.rQwait("ServerFence header", 8, 1)) { return false; }
this._sock.rQskipBytes(3); // Padding
let flags = this._sock.rQshift32();
return true;
}
- _handle_xvp_msg() {
+ _handleXvpMsg() {
if (this._sock.rQwait("XVP version and message", 3, 1)) { return false; }
this._sock.rQskipBytes(1); // Padding
- const xvp_ver = this._sock.rQshift8();
- const xvp_msg = this._sock.rQshift8();
+ const xvpVer = this._sock.rQshift8();
+ const xvpMsg = this._sock.rQshift8();
- switch (xvp_msg) {
+ switch (xvpMsg) {
case 0: // XVP_FAIL
Log.Error("XVP Operation Failed");
break;
case 1: // XVP_INIT
- this._rfb_xvp_ver = xvp_ver;
- Log.Info("XVP extensions enabled (version " + this._rfb_xvp_ver + ")");
+ this._rfbXvpVer = xvpVer;
+ Log.Info("XVP extensions enabled (version " + this._rfbXvpVer + ")");
this._setCapability("power", true);
break;
default:
- this._fail("Illegal server XVP message (msg: " + xvp_msg + ")");
+ this._fail("Illegal server XVP message (msg: " + xvpMsg + ")");
break;
}
return true;
}
- _normal_msg() {
- let msg_type;
+ _normalMsg() {
+ let msgType;
if (this._FBU.rects > 0) {
- msg_type = 0;
+ msgType = 0;
} else {
- msg_type = this._sock.rQshift8();
+ msgType = this._sock.rQshift8();
}
let first, ret;
- switch (msg_type) {
+ switch (msgType) {
case 0: // FramebufferUpdate
ret = this._framebufferUpdate();
if (ret && !this._enabledContinuousUpdates) {
RFB.messages.fbUpdateRequest(this._sock, true, 0, 0,
- this._fb_width, this._fb_height);
+ this._fbWidth, this._fbHeight);
}
return ret;
case 1: // SetColorMapEntries
- return this._handle_set_colour_map_msg();
+ return this._handleSetColourMapMsg();
case 2: // Bell
Log.Debug("Bell");
return true;
case 3: // ServerCutText
- return this._handle_server_cut_text();
+ return this._handleServerCutText();
case 150: // EndOfContinuousUpdates
first = !this._supportsContinuousUpdates;
return true;
case 248: // ServerFence
- return this._handle_server_fence_msg();
+ return this._handleServerFenceMsg();
case 250: // XVP
- return this._handle_xvp_msg();
+ return this._handleXvpMsg();
default:
- this._fail("Unexpected server message (type " + msg_type + ")");
+ this._fail("Unexpected server message (type " + msgType + ")");
Log.Debug("sock.rQslice(0, 30): " + this._sock.rQslice(0, 30));
return true;
}
this._flushing = false;
// Resume processing
if (this._sock.rQlen > 0) {
- this._handle_message();
+ this._handleMessage();
}
}
return this._handleCursor();
case encodings.pseudoEncodingQEMUExtendedKeyEvent:
- // Old Safari doesn't support creating keyboard events
- try {
- const keyboardEvent = document.createEvent("keyboardEvent");
- if (keyboardEvent.code !== undefined) {
- this._qemuExtKeyEventSupported = true;
- }
- } catch (err) {
- // Do nothing
- }
+ this._qemuExtKeyEventSupported = true;
return true;
case encodings.pseudoEncodingDesktopName:
return false;
}
- const cursor_type = this._sock.rQshift8();
+ const cursorType = this._sock.rQshift8();
this._sock.rQshift8(); //Padding
const bytesPerPixel = 4;
//Classic cursor
- if (cursor_type == 0) {
+ if (cursorType == 0) {
//Used to filter away unimportant bits.
//OR is used for correct conversion in js.
const PIXEL_MASK = 0xffffff00 | 0;
return false;
}
- let and_mask = new Array(w * h);
+ let andMask = new Array(w * h);
for (let pixel = 0; pixel < (w * h); pixel++) {
- and_mask[pixel] = this._sock.rQshift32();
+ andMask[pixel] = this._sock.rQshift32();
}
- let xor_mask = new Array(w * h);
+ let xorMask = new Array(w * h);
for (let pixel = 0; pixel < (w * h); pixel++) {
- xor_mask[pixel] = this._sock.rQshift32();
+ xorMask[pixel] = this._sock.rQshift32();
}
for (let pixel = 0; pixel < (w * h); pixel++) {
- if (and_mask[pixel] == 0) {
+ if (andMask[pixel] == 0) {
//Fully opaque pixel
- let bgr = xor_mask[pixel];
+ let bgr = xorMask[pixel];
let r = bgr >> 8 & 0xff;
let g = bgr >> 16 & 0xff;
let b = bgr >> 24 & 0xff;
rgba[(pixel * bytesPerPixel) + 2 ] = b; //b
rgba[(pixel * bytesPerPixel) + 3 ] = 0xff; //a
- } else if ((and_mask[pixel] & PIXEL_MASK) ==
+ } else if ((andMask[pixel] & PIXEL_MASK) ==
PIXEL_MASK) {
//Only screen value matters, no mouse colouring
- if (xor_mask[pixel] == 0) {
+ if (xorMask[pixel] == 0) {
//Transparent pixel
rgba[(pixel * bytesPerPixel) ] = 0x00;
rgba[(pixel * bytesPerPixel) + 1 ] = 0x00;
rgba[(pixel * bytesPerPixel) + 2 ] = 0x00;
rgba[(pixel * bytesPerPixel) + 3 ] = 0x00;
- } else if ((xor_mask[pixel] & PIXEL_MASK) ==
+ } else if ((xorMask[pixel] & PIXEL_MASK) ==
PIXEL_MASK) {
//Inverted pixel, not supported in browsers.
//Fully opaque instead.
rgba[(pixel * bytesPerPixel) + 3 ] = 0xff;
} else {
- //Unhandled xor_mask
+ //Unhandled xorMask
rgba[(pixel * bytesPerPixel) ] = 0x00;
rgba[(pixel * bytesPerPixel) + 1 ] = 0x00;
rgba[(pixel * bytesPerPixel) + 2 ] = 0x00;
}
} else {
- //Unhandled and_mask
+ //Unhandled andMask
rgba[(pixel * bytesPerPixel) ] = 0x00;
rgba[(pixel * bytesPerPixel) + 1 ] = 0x00;
rgba[(pixel * bytesPerPixel) + 2 ] = 0x00;
}
//Alpha cursor.
- } else if (cursor_type == 1) {
+ } else if (cursorType == 1) {
if (this._sock.rQwait("VMware cursor alpha encoding",
(w * h * 4), 2)) {
return false;
for (let pixel = 0; pixel < (w * h); pixel++) {
let data = this._sock.rQshift32();
- rgba[(pixel * 4) ] = data >> 8 & 0xff; //r
+ rgba[(pixel * 4) ] = data >> 24 & 0xff; //r
rgba[(pixel * 4) + 1 ] = data >> 16 & 0xff; //g
- rgba[(pixel * 4) + 2 ] = data >> 24 & 0xff; //b
+ rgba[(pixel * 4) + 2 ] = data >> 8 & 0xff; //b
rgba[(pixel * 4) + 3 ] = data & 0xff; //a
}
} else {
Log.Warn("The given cursor type is not supported: "
- + cursor_type + " given.");
+ + cursorType + " given.");
return false;
}
const mask = this._sock.rQshiftBytes(masklength);
let rgba = new Uint8Array(w * h * 4);
- let pix_idx = 0;
+ let pixIdx = 0;
for (let y = 0; y < h; y++) {
for (let x = 0; x < w; x++) {
- let mask_idx = y * Math.ceil(w / 8) + Math.floor(x / 8);
- let alpha = (mask[mask_idx] << (x % 8)) & 0x80 ? 255 : 0;
- rgba[pix_idx ] = pixels[pix_idx + 2];
- rgba[pix_idx + 1] = pixels[pix_idx + 1];
- rgba[pix_idx + 2] = pixels[pix_idx];
- rgba[pix_idx + 3] = alpha;
- pix_idx += 4;
+ let maskIdx = y * Math.ceil(w / 8) + Math.floor(x / 8);
+ let alpha = (mask[maskIdx] << (x % 8)) & 0x80 ? 255 : 0;
+ rgba[pixIdx ] = pixels[pixIdx + 2];
+ rgba[pixIdx + 1] = pixels[pixIdx + 1];
+ rgba[pixIdx + 2] = pixels[pixIdx];
+ rgba[pixIdx + 3] = alpha;
+ pixIdx += 4;
}
}
}
let name = this._sock.rQshiftStr(length);
- name = decodeUTF8(name);
+ name = decodeUTF8(name, true);
this._setDesktopName(name);
return false;
}
- const number_of_screens = this._sock.rQpeek8();
+ const numberOfScreens = this._sock.rQpeek8();
- let bytes = 4 + (number_of_screens * 16);
+ let bytes = 4 + (numberOfScreens * 16);
if (this._sock.rQwait("ExtendedDesktopSize", bytes)) {
return false;
}
this._sock.rQskipBytes(1); // number-of-screens
this._sock.rQskipBytes(3); // padding
- for (let i = 0; i < number_of_screens; i += 1) {
+ for (let i = 0; i < numberOfScreens; i += 1) {
// Save the id and flags of the first screen
if (i === 0) {
- this._screen_id = this._sock.rQshiftBytes(4); // id
+ this._screenID = this._sock.rQshiftBytes(4); // id
this._sock.rQskipBytes(2); // x-position
this._sock.rQskipBytes(2); // y-position
this._sock.rQskipBytes(2); // width
this._sock.rQskipBytes(2); // height
- this._screen_flags = this._sock.rQshiftBytes(4); // flags
+ this._screenFlags = this._sock.rQshiftBytes(4); // flags
} else {
this._sock.rQskipBytes(16);
}
return decoder.decodeRect(this._FBU.x, this._FBU.y,
this._FBU.width, this._FBU.height,
this._sock, this._display,
- this._fb_depth);
+ this._fbDepth);
} catch (err) {
this._fail("Error decoding rect: " + err);
return false;
if (!this._enabledContinuousUpdates) { return; }
RFB.messages.enableContinuousUpdates(this._sock, true, 0, 0,
- this._fb_width, this._fb_height);
+ this._fbWidth, this._fbHeight);
}
_resize(width, height) {
- this._fb_width = width;
- this._fb_height = height;
+ this._fbWidth = width;
+ this._fbHeight = height;
- this._display.resize(this._fb_width, this._fb_height);
+ this._display.resize(this._fbWidth, this._fbHeight);
// Adjust the visible viewport based on the new dimensions
this._updateClip();
}
_xvpOp(ver, op) {
- if (this._rfb_xvp_ver < ver) { return; }
+ if (this._rfbXvpVer < ver) { return; }
Log.Info("Sending XVP operation " + op + " (version " + ver + ")");
RFB.messages.xvpOp(this._sock, ver, op);
}
}
_refreshCursor() {
- if (this._rfb_connection_state !== 'connected') { return; }
+ if (this._rfbConnectionState !== "connecting" &&
+ this._rfbConnectionState !== "connected") {
+ return;
+ }
const image = this._shouldShowDotCursor() ? RFB.cursors.dot : this._cursorImage;
this._cursor.change(image.rgbaPixels,
image.hotx, image.hoty,
},
QEMUExtendedKeyEvent(sock, keysym, down, keycode) {
- function getRFBkeycode(xt_scancode) {
+ function getRFBkeycode(xtScanCode) {
const upperByte = (keycode >> 8);
const lowerByte = (keycode & 0x00ff);
if (upperByte === 0xe0 && lowerByte < 0x7f) {
return lowerByte | 0x80;
}
- return xt_scancode;
+ return xtScanCode;
}
const buff = sock._sQ;
sock.flush();
},
- // TODO(directxman12): make this unicode compatible?
- clientCutText(sock, text) {
+ // Used to build Notify and Request data.
+ _buildExtendedClipboardFlags(actions, formats) {
+ let data = new Uint8Array(4);
+ let formatFlag = 0x00000000;
+ let actionFlag = 0x00000000;
+
+ for (let i = 0; i < actions.length; i++) {
+ actionFlag |= actions[i];
+ }
+
+ for (let i = 0; i < formats.length; i++) {
+ formatFlag |= formats[i];
+ }
+
+ data[0] = actionFlag >> 24; // Actions
+ data[1] = 0x00; // Reserved
+ data[2] = 0x00; // Reserved
+ data[3] = formatFlag; // Formats
+
+ return data;
+ },
+
+ extendedClipboardProvide(sock, formats, inData) {
+ // Deflate incomming data and their sizes
+ let deflator = new Deflator();
+ let dataToDeflate = [];
+
+ for (let i = 0; i < formats.length; i++) {
+ // We only support the format Text at this time
+ if (formats[i] != extendedClipboardFormatText) {
+ throw new Error("Unsupported extended clipboard format for Provide message.");
+ }
+
+ // Change lone \r or \n into \r\n as defined in rfbproto
+ inData[i] = inData[i].replace(/\r\n|\r|\n/gm, "\r\n");
+
+ // Check if it already has \0
+ let text = encodeUTF8(inData[i] + "\0");
+
+ dataToDeflate.push( (text.length >> 24) & 0xFF,
+ (text.length >> 16) & 0xFF,
+ (text.length >> 8) & 0xFF,
+ (text.length & 0xFF));
+
+ for (let j = 0; j < text.length; j++) {
+ dataToDeflate.push(text.charCodeAt(j));
+ }
+ }
+
+ let deflatedData = deflator.deflate(new Uint8Array(dataToDeflate));
+
+ // Build data to send
+ let data = new Uint8Array(4 + deflatedData.length);
+ data.set(RFB.messages._buildExtendedClipboardFlags([extendedClipboardActionProvide],
+ formats));
+ data.set(deflatedData, 4);
+
+ RFB.messages.clientCutText(sock, data, true);
+ },
+
+ extendedClipboardNotify(sock, formats) {
+ let flags = RFB.messages._buildExtendedClipboardFlags([extendedClipboardActionNotify],
+ formats);
+ RFB.messages.clientCutText(sock, flags, true);
+ },
+
+ extendedClipboardRequest(sock, formats) {
+ let flags = RFB.messages._buildExtendedClipboardFlags([extendedClipboardActionRequest],
+ formats);
+ RFB.messages.clientCutText(sock, flags, true);
+ },
+
+ extendedClipboardCaps(sock, actions, formats) {
+ let formatKeys = Object.keys(formats);
+ let data = new Uint8Array(4 + (4 * formatKeys.length));
+
+ formatKeys.map(x => parseInt(x));
+ formatKeys.sort((a, b) => a - b);
+
+ data.set(RFB.messages._buildExtendedClipboardFlags(actions, []));
+
+ let loopOffset = 4;
+ for (let i = 0; i < formatKeys.length; i++) {
+ data[loopOffset] = formats[formatKeys[i]] >> 24;
+ data[loopOffset + 1] = formats[formatKeys[i]] >> 16;
+ data[loopOffset + 2] = formats[formatKeys[i]] >> 8;
+ data[loopOffset + 3] = formats[formatKeys[i]] >> 0;
+
+ loopOffset += 4;
+ data[3] |= (1 << formatKeys[i]); // Update our format flags
+ }
+
+ RFB.messages.clientCutText(sock, data, true);
+ },
+
+ clientCutText(sock, data, extended = false) {
const buff = sock._sQ;
const offset = sock._sQlen;
buff[offset + 2] = 0; // padding
buff[offset + 3] = 0; // padding
- let length = text.length;
+ let length;
+ if (extended) {
+ length = toUnsigned32bit(-data.length);
+ } else {
+ length = data.length;
+ }
buff[offset + 4] = length >> 24;
buff[offset + 5] = length >> 16;
sock._sQlen += 8;
- // We have to keep track of from where in the text we begin creating the
+ // We have to keep track of from where in the data we begin creating the
// buffer for the flush in the next iteration.
- let textOffset = 0;
+ let dataOffset = 0;
- let remaining = length;
+ let remaining = data.length;
while (remaining > 0) {
let flushSize = Math.min(remaining, (sock._sQbufferSize - sock._sQlen));
for (let i = 0; i < flushSize; i++) {
- buff[sock._sQlen + i] = text.charCodeAt(textOffset + i);
+ buff[sock._sQlen + i] = data[dataOffset + i];
}
sock._sQlen += flushSize;
sock.flush();
remaining -= flushSize;
- textOffset += flushSize;
+ dataOffset += flushSize;
}
+
},
setDesktopSize(sock, width, height, id, flags) {
sock.flush();
},
- pixelFormat(sock, depth, true_color) {
+ pixelFormat(sock, depth, trueColor) {
const buff = sock._sQ;
const offset = sock._sQlen;
buff[offset + 4] = bpp; // bits-per-pixel
buff[offset + 5] = depth; // depth
buff[offset + 6] = 0; // little-endian
- buff[offset + 7] = true_color ? 1 : 0; // true-color
+ buff[offset + 7] = trueColor ? 1 : 0; // true-color
buff[offset + 8] = 0; // red-max
buff[offset + 9] = (1 << bits) - 1; // red-max
buff[offset + 12] = 0; // blue-max
buff[offset + 13] = (1 << bits) - 1; // blue-max
- buff[offset + 14] = bits * 2; // red-shift
+ buff[offset + 14] = bits * 0; // red-shift
buff[offset + 15] = bits * 1; // green-shift
- buff[offset + 16] = bits * 0; // blue-shift
+ buff[offset + 16] = bits * 2; // blue-shift
buff[offset + 17] = 0; // padding
buff[offset + 18] = 0; // padding
projects / mirror_novnc.git / blobdiff