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KasmVNC/kasmweb/tests/test.rfb.js
Samuel Mannehed c1160d1468 Fix color channels for VMware alpha cursors 
The red and blue channels were incorrectly swapped.
2021-03-29 12:08:36 +03:00

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const expect = chai.expect;
import RFB from '../core/rfb.js';
import Websock from '../core/websock.js';
import { encodings } from '../core/encodings.js';
import FakeWebSocket from './fake.websocket.js';
/* UIEvent constructor polyfill for IE */
(() => {
if (typeof window.UIEvent === "function") return;
function UIEvent( event, params ) {
params = params || { bubbles: false, cancelable: false, view: window, detail: undefined };
const evt = document.createEvent( 'UIEvent' );
evt.initUIEvent( event, params.bubbles, params.cancelable, params.view, params.detail );
return evt;
}
UIEvent.prototype = window.UIEvent.prototype;
window.UIEvent = UIEvent;
})();
function push8(arr, num) {
"use strict";
arr.push(num & 0xFF);
}
function push16(arr, num) {
"use strict";
arr.push((num >> 8) & 0xFF,
num & 0xFF);
}
function push32(arr, num) {
"use strict";
arr.push((num >> 24) & 0xFF,
(num >> 16) & 0xFF,
(num >> 8) & 0xFF,
num & 0xFF);
}
function pushString(arr, string) {
let utf8 = unescape(encodeURIComponent(string));
for (let i = 0; i < utf8.length; i++) {
arr.push(utf8.charCodeAt(i));
}
}
describe('Remote Frame Buffer Protocol Client', function () {
let clock;
let raf;
before(FakeWebSocket.replace);
after(FakeWebSocket.restore);
before(function () {
this.clock = clock = sinon.useFakeTimers();
// sinon doesn't support this yet
raf = window.requestAnimationFrame;
window.requestAnimationFrame = setTimeout;
// Use a single set of buffers instead of reallocating to
// speed up tests
const sock = new Websock();
const _sQ = new Uint8Array(sock._sQbufferSize);
const rQ = new Uint8Array(sock._rQbufferSize);
Websock.prototype._old_allocate_buffers = Websock.prototype._allocate_buffers;
Websock.prototype._allocate_buffers = function () {
this._sQ = _sQ;
this._rQ = rQ;
};
});
after(function () {
Websock.prototype._allocate_buffers = Websock.prototype._old_allocate_buffers;
this.clock.restore();
window.requestAnimationFrame = raf;
});
let container;
let rfbs;
beforeEach(function () {
// Create a container element for all RFB objects to attach to
container = document.createElement('div');
container.style.width = "100%";
container.style.height = "100%";
document.body.appendChild(container);
// And track all created RFB objects
rfbs = [];
});
afterEach(function () {
// Make sure every created RFB object is properly cleaned up
// or they might affect subsequent tests
rfbs.forEach(function (rfb) {
rfb.disconnect();
expect(rfb._disconnect).to.have.been.called;
});
rfbs = [];
document.body.removeChild(container);
container = null;
});
function make_rfb(url, options) {
url = url || 'wss://host:8675';
const rfb = new RFB(container, url, options);
clock.tick();
rfb._sock._websocket._open();
rfb._rfb_connection_state = 'connected';
sinon.spy(rfb, "_disconnect");
rfbs.push(rfb);
return rfb;
}
describe('Connecting/Disconnecting', function () {
describe('#RFB', function () {
it('should set the current state to "connecting"', function () {
const client = new RFB(document.createElement('div'), 'wss://host:8675');
client._rfb_connection_state = '';
this.clock.tick();
expect(client._rfb_connection_state).to.equal('connecting');
});
it('should actually connect to the websocket', function () {
const client = new RFB(document.createElement('div'), 'ws://HOST:8675/PATH');
sinon.spy(client._sock, 'open');
this.clock.tick();
expect(client._sock.open).to.have.been.calledOnce;
expect(client._sock.open).to.have.been.calledWith('ws://HOST:8675/PATH');
});
});
describe('#disconnect', function () {
let client;
beforeEach(function () {
client = make_rfb();
});
it('should go to state "disconnecting" before "disconnected"', function () {
sinon.spy(client, '_updateConnectionState');
client.disconnect();
expect(client._updateConnectionState).to.have.been.calledTwice;
expect(client._updateConnectionState.getCall(0).args[0])
.to.equal('disconnecting');
expect(client._updateConnectionState.getCall(1).args[0])
.to.equal('disconnected');
expect(client._rfb_connection_state).to.equal('disconnected');
});
it('should unregister error event handler', function () {
sinon.spy(client._sock, 'off');
client.disconnect();
expect(client._sock.off).to.have.been.calledWith('error');
});
it('should unregister message event handler', function () {
sinon.spy(client._sock, 'off');
client.disconnect();
expect(client._sock.off).to.have.been.calledWith('message');
});
it('should unregister open event handler', function () {
sinon.spy(client._sock, 'off');
client.disconnect();
expect(client._sock.off).to.have.been.calledWith('open');
});
});
describe('#sendCredentials', function () {
let client;
beforeEach(function () {
client = make_rfb();
client._rfb_connection_state = 'connecting';
});
it('should set the rfb credentials properly"', function () {
client.sendCredentials({ password: 'pass' });
expect(client._rfb_credentials).to.deep.equal({ password: 'pass' });
});
it('should call init_msg "soon"', function () {
client._init_msg = sinon.spy();
client.sendCredentials({ password: 'pass' });
this.clock.tick(5);
expect(client._init_msg).to.have.been.calledOnce;
});
});
});
describe('Public API Basic Behavior', function () {
let client;
beforeEach(function () {
client = make_rfb();
});
describe('#sendCtrlAlDel', function () {
it('should sent ctrl[down]-alt[down]-del[down] then del[up]-alt[up]-ctrl[up]', function () {
const expected = {_sQ: new Uint8Array(48), _sQlen: 0, flush: () => {}};
RFB.messages.keyEvent(expected, 0xFFE3, 1);
RFB.messages.keyEvent(expected, 0xFFE9, 1);
RFB.messages.keyEvent(expected, 0xFFFF, 1);
RFB.messages.keyEvent(expected, 0xFFFF, 0);
RFB.messages.keyEvent(expected, 0xFFE9, 0);
RFB.messages.keyEvent(expected, 0xFFE3, 0);
client.sendCtrlAltDel();
expect(client._sock).to.have.sent(expected._sQ);
});
it('should not send the keys if we are not in a normal state', function () {
sinon.spy(client._sock, 'flush');
client._rfb_connection_state = "connecting";
client.sendCtrlAltDel();
expect(client._sock.flush).to.not.have.been.called;
});
it('should not send the keys if we are set as view_only', function () {
sinon.spy(client._sock, 'flush');
client._viewOnly = true;
client.sendCtrlAltDel();
expect(client._sock.flush).to.not.have.been.called;
});
});
describe('#sendKey', function () {
it('should send a single key with the given code and state (down = true)', function () {
const expected = {_sQ: new Uint8Array(8), _sQlen: 0, flush: () => {}};
RFB.messages.keyEvent(expected, 123, 1);
client.sendKey(123, 'Key123', true);
expect(client._sock).to.have.sent(expected._sQ);
});
it('should send both a down and up event if the state is not specified', function () {
const expected = {_sQ: new Uint8Array(16), _sQlen: 0, flush: () => {}};
RFB.messages.keyEvent(expected, 123, 1);
RFB.messages.keyEvent(expected, 123, 0);
client.sendKey(123, 'Key123');
expect(client._sock).to.have.sent(expected._sQ);
});
it('should not send the key if we are not in a normal state', function () {
sinon.spy(client._sock, 'flush');
client._rfb_connection_state = "connecting";
client.sendKey(123, 'Key123');
expect(client._sock.flush).to.not.have.been.called;
});
it('should not send the key if we are set as view_only', function () {
sinon.spy(client._sock, 'flush');
client._viewOnly = true;
client.sendKey(123, 'Key123');
expect(client._sock.flush).to.not.have.been.called;
});
it('should send QEMU extended events if supported', function () {
client._qemuExtKeyEventSupported = true;
const expected = {_sQ: new Uint8Array(12), _sQlen: 0, flush: () => {}};
RFB.messages.QEMUExtendedKeyEvent(expected, 0x20, true, 0x0039);
client.sendKey(0x20, 'Space', true);
expect(client._sock).to.have.sent(expected._sQ);
});
it('should not send QEMU extended events if unknown key code', function () {
client._qemuExtKeyEventSupported = true;
const expected = {_sQ: new Uint8Array(8), _sQlen: 0, flush: () => {}};
RFB.messages.keyEvent(expected, 123, 1);
client.sendKey(123, 'FooBar', true);
expect(client._sock).to.have.sent(expected._sQ);
});
});
describe('#focus', function () {
it('should move focus to canvas object', function () {
client._canvas.focus = sinon.spy();
client.focus();
expect(client._canvas.focus).to.have.been.calledOnce;
});
});
describe('#blur', function () {
it('should remove focus from canvas object', function () {
client._canvas.blur = sinon.spy();
client.blur();
expect(client._canvas.blur).to.have.been.calledOnce;
});
});
describe('#clipboardPasteFrom', function () {
it('should send the given text in a paste event', function () {
const expected = {_sQ: new Uint8Array(11), _sQlen: 0,
_sQbufferSize: 11, flush: () => {}};
RFB.messages.clientCutText(expected, 'abc');
client.clipboardPasteFrom('abc');
expect(client._sock).to.have.sent(expected._sQ);
});
it('should flush multiple times for large clipboards', function () {
sinon.spy(client._sock, 'flush');
let long_text = "";
for (let i = 0; i < client._sock._sQbufferSize + 100; i++) {
long_text += 'a';
}
client.clipboardPasteFrom(long_text);
expect(client._sock.flush).to.have.been.calledTwice;
});
it('should not send the text if we are not in a normal state', function () {
sinon.spy(client._sock, 'flush');
client._rfb_connection_state = "connecting";
client.clipboardPasteFrom('abc');
expect(client._sock.flush).to.not.have.been.called;
});
});
describe("XVP operations", function () {
beforeEach(function () {
client._rfb_xvp_ver = 1;
});
it('should send the shutdown signal on #machineShutdown', function () {
client.machineShutdown();
expect(client._sock).to.have.sent(new Uint8Array([0xFA, 0x00, 0x01, 0x02]));
});
it('should send the reboot signal on #machineReboot', function () {
client.machineReboot();
expect(client._sock).to.have.sent(new Uint8Array([0xFA, 0x00, 0x01, 0x03]));
});
it('should send the reset signal on #machineReset', function () {
client.machineReset();
expect(client._sock).to.have.sent(new Uint8Array([0xFA, 0x00, 0x01, 0x04]));
});
it('should not send XVP operations with higher versions than we support', function () {
sinon.spy(client._sock, 'flush');
client._xvpOp(2, 7);
expect(client._sock.flush).to.not.have.been.called;
});
});
});
describe('Clipping', function () {
let client;
beforeEach(function () {
client = make_rfb();
container.style.width = '70px';
container.style.height = '80px';
client.clipViewport = true;
});
it('should update display clip state when changing the property', function () {
const spy = sinon.spy(client._display, "clipViewport", ["set"]);
client.clipViewport = false;
expect(spy.set).to.have.been.calledOnce;
expect(spy.set).to.have.been.calledWith(false);
spy.set.reset();
client.clipViewport = true;
expect(spy.set).to.have.been.calledOnce;
expect(spy.set).to.have.been.calledWith(true);
});
it('should update the viewport when the container size changes', function () {
sinon.spy(client._display, "viewportChangeSize");
container.style.width = '40px';
container.style.height = '50px';
const event = new UIEvent('resize');
window.dispatchEvent(event);
clock.tick();
expect(client._display.viewportChangeSize).to.have.been.calledOnce;
expect(client._display.viewportChangeSize).to.have.been.calledWith(40, 50);
});
it('should update the viewport when the remote session resizes', function () {
// Simple ExtendedDesktopSize FBU message
const incoming = [ 0x00, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00, 0x00,
0x00, 0xff, 0x00, 0xff, 0xff, 0xff, 0xfe, 0xcc,
0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0xff, 0x00, 0xff,
0x00, 0x00, 0x00, 0x00 ];
sinon.spy(client._display, "viewportChangeSize");
client._sock._websocket._receive_data(new Uint8Array(incoming));
// FIXME: Display implicitly calls viewportChangeSize() when
// resizing the framebuffer, hence calledTwice.
expect(client._display.viewportChangeSize).to.have.been.calledTwice;
expect(client._display.viewportChangeSize).to.have.been.calledWith(70, 80);
});
it('should not update the viewport if not clipping', function () {
client.clipViewport = false;
sinon.spy(client._display, "viewportChangeSize");
container.style.width = '40px';
container.style.height = '50px';
const event = new UIEvent('resize');
window.dispatchEvent(event);
clock.tick();
expect(client._display.viewportChangeSize).to.not.have.been.called;
});
it('should not update the viewport if scaling', function () {
client.scaleViewport = true;
sinon.spy(client._display, "viewportChangeSize");
container.style.width = '40px';
container.style.height = '50px';
const event = new UIEvent('resize');
window.dispatchEvent(event);
clock.tick();
expect(client._display.viewportChangeSize).to.not.have.been.called;
});
describe('Dragging', function () {
beforeEach(function () {
client.dragViewport = true;
sinon.spy(RFB.messages, "pointerEvent");
});
afterEach(function () {
RFB.messages.pointerEvent.restore();
});
it('should not send button messages when initiating viewport dragging', function () {
client._handleMouseButton(13, 9, 0x001);
expect(RFB.messages.pointerEvent).to.not.have.been.called;
});
it('should send button messages when release without movement', function () {
// Just up and down
client._handleMouseButton(13, 9, 0x001);
client._handleMouseButton(13, 9, 0x000);
expect(RFB.messages.pointerEvent).to.have.been.calledTwice;
RFB.messages.pointerEvent.reset();
// Small movement
client._handleMouseButton(13, 9, 0x001);
client._handleMouseMove(15, 14);
client._handleMouseButton(15, 14, 0x000);
expect(RFB.messages.pointerEvent).to.have.been.calledTwice;
});
it('should send button message directly when drag is disabled', function () {
client.dragViewport = false;
client._handleMouseButton(13, 9, 0x001);
expect(RFB.messages.pointerEvent).to.have.been.calledOnce;
});
it('should be initiate viewport dragging on sufficient movement', function () {
sinon.spy(client._display, "viewportChangePos");
// Too small movement
client._handleMouseButton(13, 9, 0x001);
client._handleMouseMove(18, 9);
expect(RFB.messages.pointerEvent).to.not.have.been.called;
expect(client._display.viewportChangePos).to.not.have.been.called;
// Sufficient movement
client._handleMouseMove(43, 9);
expect(RFB.messages.pointerEvent).to.not.have.been.called;
expect(client._display.viewportChangePos).to.have.been.calledOnce;
expect(client._display.viewportChangePos).to.have.been.calledWith(-30, 0);
client._display.viewportChangePos.reset();
// Now a small movement should move right away
client._handleMouseMove(43, 14);
expect(RFB.messages.pointerEvent).to.not.have.been.called;
expect(client._display.viewportChangePos).to.have.been.calledOnce;
expect(client._display.viewportChangePos).to.have.been.calledWith(0, -5);
});
it('should not send button messages when dragging ends', function () {
// First the movement
client._handleMouseButton(13, 9, 0x001);
client._handleMouseMove(43, 9);
client._handleMouseButton(43, 9, 0x000);
expect(RFB.messages.pointerEvent).to.not.have.been.called;
});
it('should terminate viewport dragging on a button up event', function () {
// First the dragging movement
client._handleMouseButton(13, 9, 0x001);
client._handleMouseMove(43, 9);
client._handleMouseButton(43, 9, 0x000);
// Another movement now should not move the viewport
sinon.spy(client._display, "viewportChangePos");
client._handleMouseMove(43, 59);
expect(client._display.viewportChangePos).to.not.have.been.called;
});
});
});
describe('Scaling', function () {
let client;
beforeEach(function () {
client = make_rfb();
container.style.width = '70px';
container.style.height = '80px';
client.scaleViewport = true;
});
it('should update display scale factor when changing the property', function () {
const spy = sinon.spy(client._display, "scale", ["set"]);
sinon.spy(client._display, "autoscale");
client.scaleViewport = false;
expect(spy.set).to.have.been.calledOnce;
expect(spy.set).to.have.been.calledWith(1.0);
expect(client._display.autoscale).to.not.have.been.called;
client.scaleViewport = true;
expect(client._display.autoscale).to.have.been.calledOnce;
expect(client._display.autoscale).to.have.been.calledWith(70, 80);
});
it('should update the clipping setting when changing the property', function () {
client.clipViewport = true;
const spy = sinon.spy(client._display, "clipViewport", ["set"]);
client.scaleViewport = false;
expect(spy.set).to.have.been.calledOnce;
expect(spy.set).to.have.been.calledWith(true);
spy.set.reset();
client.scaleViewport = true;
expect(spy.set).to.have.been.calledOnce;
expect(spy.set).to.have.been.calledWith(false);
});
it('should update the scaling when the container size changes', function () {
sinon.spy(client._display, "autoscale");
container.style.width = '40px';
container.style.height = '50px';
const event = new UIEvent('resize');
window.dispatchEvent(event);
clock.tick();
expect(client._display.autoscale).to.have.been.calledOnce;
expect(client._display.autoscale).to.have.been.calledWith(40, 50);
});
it('should update the scaling when the remote session resizes', function () {
// Simple ExtendedDesktopSize FBU message
const incoming = [ 0x00, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00, 0x00,
0x00, 0xff, 0x00, 0xff, 0xff, 0xff, 0xfe, 0xcc,
0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0xff, 0x00, 0xff,
0x00, 0x00, 0x00, 0x00 ];
sinon.spy(client._display, "autoscale");
client._sock._websocket._receive_data(new Uint8Array(incoming));
expect(client._display.autoscale).to.have.been.calledOnce;
expect(client._display.autoscale).to.have.been.calledWith(70, 80);
});
it('should not update the display scale factor if not scaling', function () {
client.scaleViewport = false;
sinon.spy(client._display, "autoscale");
container.style.width = '40px';
container.style.height = '50px';
const event = new UIEvent('resize');
window.dispatchEvent(event);
clock.tick();
expect(client._display.autoscale).to.not.have.been.called;
});
});
describe('Remote resize', function () {
let client;
beforeEach(function () {
client = make_rfb();
client._supportsSetDesktopSize = true;
client.resizeSession = true;
container.style.width = '70px';
container.style.height = '80px';
sinon.spy(RFB.messages, "setDesktopSize");
});
afterEach(function () {
RFB.messages.setDesktopSize.restore();
});
it('should only request a resize when turned on', function () {
client.resizeSession = false;
expect(RFB.messages.setDesktopSize).to.not.have.been.called;
client.resizeSession = true;
expect(RFB.messages.setDesktopSize).to.have.been.calledOnce;
});
it('should request a resize when initially connecting', function () {
// Simple ExtendedDesktopSize FBU message
const incoming = [ 0x00, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00, 0x00,
0x00, 0x04, 0x00, 0x04, 0xff, 0xff, 0xfe, 0xcc,
0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x04, 0x00, 0x04,
0x00, 0x00, 0x00, 0x00 ];
// First message should trigger a resize
client._supportsSetDesktopSize = false;
client._sock._websocket._receive_data(new Uint8Array(incoming));
expect(RFB.messages.setDesktopSize).to.have.been.calledOnce;
expect(RFB.messages.setDesktopSize).to.have.been.calledWith(sinon.match.object, 70, 80, 0, 0);
RFB.messages.setDesktopSize.reset();
// Second message should not trigger a resize
client._sock._websocket._receive_data(new Uint8Array(incoming));
expect(RFB.messages.setDesktopSize).to.not.have.been.called;
});
it('should request a resize when the container resizes', function () {
container.style.width = '40px';
container.style.height = '50px';
const event = new UIEvent('resize');
window.dispatchEvent(event);
clock.tick(1000);
expect(RFB.messages.setDesktopSize).to.have.been.calledOnce;
expect(RFB.messages.setDesktopSize).to.have.been.calledWith(sinon.match.object, 40, 50, 0, 0);
});
it('should not resize until the container size is stable', function () {
container.style.width = '20px';
container.style.height = '30px';
const event1 = new UIEvent('resize');
window.dispatchEvent(event1);
clock.tick(400);
expect(RFB.messages.setDesktopSize).to.not.have.been.called;
container.style.width = '40px';
container.style.height = '50px';
const event2 = new UIEvent('resize');
window.dispatchEvent(event2);
clock.tick(400);
expect(RFB.messages.setDesktopSize).to.not.have.been.called;
clock.tick(200);
expect(RFB.messages.setDesktopSize).to.have.been.calledOnce;
expect(RFB.messages.setDesktopSize).to.have.been.calledWith(sinon.match.object, 40, 50, 0, 0);
});
it('should not resize when resize is disabled', function () {
client._resizeSession = false;
container.style.width = '40px';
container.style.height = '50px';
const event = new UIEvent('resize');
window.dispatchEvent(event);
clock.tick(1000);
expect(RFB.messages.setDesktopSize).to.not.have.been.called;
});
it('should not resize when resize is not supported', function () {
client._supportsSetDesktopSize = false;
container.style.width = '40px';
container.style.height = '50px';
const event = new UIEvent('resize');
window.dispatchEvent(event);
clock.tick(1000);
expect(RFB.messages.setDesktopSize).to.not.have.been.called;
});
it('should not resize when in view only mode', function () {
client._viewOnly = true;
container.style.width = '40px';
container.style.height = '50px';
const event = new UIEvent('resize');
window.dispatchEvent(event);
clock.tick(1000);
expect(RFB.messages.setDesktopSize).to.not.have.been.called;
});
it('should not try to override a server resize', function () {
// Simple ExtendedDesktopSize FBU message
const incoming = [ 0x00, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00, 0x00,
0x00, 0x04, 0x00, 0x04, 0xff, 0xff, 0xfe, 0xcc,
0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x04, 0x00, 0x04,
0x00, 0x00, 0x00, 0x00 ];
client._sock._websocket._receive_data(new Uint8Array(incoming));
expect(RFB.messages.setDesktopSize).to.not.have.been.called;
});
});
describe('Misc Internals', function () {
describe('#_updateConnectionState', function () {
let client;
beforeEach(function () {
client = make_rfb();
});
it('should clear the disconnect timer if the state is not "disconnecting"', function () {
const spy = sinon.spy();
client._disconnTimer = setTimeout(spy, 50);
client._rfb_connection_state = 'connecting';
client._updateConnectionState('connected');
this.clock.tick(51);
expect(spy).to.not.have.been.called;
expect(client._disconnTimer).to.be.null;
});
it('should set the rfb_connection_state', function () {
client._rfb_connection_state = 'connecting';
client._updateConnectionState('connected');
expect(client._rfb_connection_state).to.equal('connected');
});
it('should not change the state when we are disconnected', function () {
client.disconnect();
expect(client._rfb_connection_state).to.equal('disconnected');
client._updateConnectionState('connecting');
expect(client._rfb_connection_state).to.not.equal('connecting');
});
it('should ignore state changes to the same state', function () {
const connectSpy = sinon.spy();
client.addEventListener("connect", connectSpy);
expect(client._rfb_connection_state).to.equal('connected');
client._updateConnectionState('connected');
expect(connectSpy).to.not.have.been.called;
client.disconnect();
const disconnectSpy = sinon.spy();
client.addEventListener("disconnect", disconnectSpy);
expect(client._rfb_connection_state).to.equal('disconnected');
client._updateConnectionState('disconnected');
expect(disconnectSpy).to.not.have.been.called;
});
it('should ignore illegal state changes', function () {
const spy = sinon.spy();
client.addEventListener("disconnect", spy);
client._updateConnectionState('disconnected');
expect(client._rfb_connection_state).to.not.equal('disconnected');
expect(spy).to.not.have.been.called;
});
});
describe('#_fail', function () {
let client;
beforeEach(function () {
client = make_rfb();
});
it('should close the WebSocket connection', function () {
sinon.spy(client._sock, 'close');
client._fail();
expect(client._sock.close).to.have.been.calledOnce;
});
it('should transition to disconnected', function () {
sinon.spy(client, '_updateConnectionState');
client._fail();
this.clock.tick(2000);
expect(client._updateConnectionState).to.have.been.called;
expect(client._rfb_connection_state).to.equal('disconnected');
});
it('should set clean_disconnect variable', function () {
client._rfb_clean_disconnect = true;
client._rfb_connection_state = 'connected';
client._fail();
expect(client._rfb_clean_disconnect).to.be.false;
});
it('should result in disconnect event with clean set to false', function () {
client._rfb_connection_state = 'connected';
const spy = sinon.spy();
client.addEventListener("disconnect", spy);
client._fail();
this.clock.tick(2000);
expect(spy).to.have.been.calledOnce;
expect(spy.args[0][0].detail.clean).to.be.false;
});
});
});
describe('Connection States', function () {
describe('connecting', function () {
it('should open the websocket connection', function () {
const client = new RFB(document.createElement('div'),
'ws://HOST:8675/PATH');
sinon.spy(client._sock, 'open');
this.clock.tick();
expect(client._sock.open).to.have.been.calledOnce;
});
});
describe('connected', function () {
let client;
beforeEach(function () {
client = make_rfb();
});
it('should result in a connect event if state becomes connected', function () {
const spy = sinon.spy();
client.addEventListener("connect", spy);
client._rfb_connection_state = 'connecting';
client._updateConnectionState('connected');
expect(spy).to.have.been.calledOnce;
});
it('should not result in a connect event if the state is not "connected"', function () {
const spy = sinon.spy();
client.addEventListener("connect", spy);
client._sock._websocket.open = () => {}; // explicitly don't call onopen
client._updateConnectionState('connecting');
expect(spy).to.not.have.been.called;
});
});
describe('disconnecting', function () {
let client;
beforeEach(function () {
client = make_rfb();
});
it('should force disconnect if we do not call Websock.onclose within the disconnection timeout', function () {
sinon.spy(client, '_updateConnectionState');
client._sock._websocket.close = () => {}; // explicitly don't call onclose
client._updateConnectionState('disconnecting');
this.clock.tick(3 * 1000);
expect(client._updateConnectionState).to.have.been.calledTwice;
expect(client._rfb_disconnect_reason).to.not.equal("");
expect(client._rfb_connection_state).to.equal("disconnected");
});
it('should not fail if Websock.onclose gets called within the disconnection timeout', function () {
client._updateConnectionState('disconnecting');
this.clock.tick(3 * 1000 / 2);
client._sock._websocket.close();
this.clock.tick(3 * 1000 / 2 + 1);
expect(client._rfb_connection_state).to.equal('disconnected');
});
it('should close the WebSocket connection', function () {
sinon.spy(client._sock, 'close');
client._updateConnectionState('disconnecting');
expect(client._sock.close).to.have.been.calledOnce;
});
it('should not result in a disconnect event', function () {
const spy = sinon.spy();
client.addEventListener("disconnect", spy);
client._sock._websocket.close = () => {}; // explicitly don't call onclose
client._updateConnectionState('disconnecting');
expect(spy).to.not.have.been.called;
});
});
describe('disconnected', function () {
let client;
beforeEach(function () {
client = new RFB(document.createElement('div'), 'ws://HOST:8675/PATH');
});
it('should result in a disconnect event if state becomes "disconnected"', function () {
const spy = sinon.spy();
client.addEventListener("disconnect", spy);
client._rfb_connection_state = 'disconnecting';
client._updateConnectionState('disconnected');
expect(spy).to.have.been.calledOnce;
expect(spy.args[0][0].detail.clean).to.be.true;
});
it('should result in a disconnect event without msg when no reason given', function () {
const spy = sinon.spy();
client.addEventListener("disconnect", spy);
client._rfb_connection_state = 'disconnecting';
client._rfb_disconnect_reason = "";
client._updateConnectionState('disconnected');
expect(spy).to.have.been.calledOnce;
expect(spy.args[0].length).to.equal(1);
});
});
});
describe('Protocol Initialization States', function () {
let client;
beforeEach(function () {
client = make_rfb();
client._rfb_connection_state = 'connecting';
});
describe('ProtocolVersion', function () {
function send_ver(ver, client) {
const arr = new Uint8Array(12);
for (let i = 0; i < ver.length; i++) {
arr[i+4] = ver.charCodeAt(i);
}
arr[0] = 'R'; arr[1] = 'F'; arr[2] = 'B'; arr[3] = ' ';
arr[11] = '\n';
client._sock._websocket._receive_data(arr);
}
describe('version parsing', function () {
it('should interpret version 003.003 as version 3.3', function () {
send_ver('003.003', client);
expect(client._rfb_version).to.equal(3.3);
});
it('should interpret version 003.006 as version 3.3', function () {
send_ver('003.006', client);
expect(client._rfb_version).to.equal(3.3);
});
it('should interpret version 003.889 as version 3.3', function () {
send_ver('003.889', client);
expect(client._rfb_version).to.equal(3.3);
});
it('should interpret version 003.007 as version 3.7', function () {
send_ver('003.007', client);
expect(client._rfb_version).to.equal(3.7);
});
it('should interpret version 003.008 as version 3.8', function () {
send_ver('003.008', client);
expect(client._rfb_version).to.equal(3.8);
});
it('should interpret version 004.000 as version 3.8', function () {
send_ver('004.000', client);
expect(client._rfb_version).to.equal(3.8);
});
it('should interpret version 004.001 as version 3.8', function () {
send_ver('004.001', client);
expect(client._rfb_version).to.equal(3.8);
});
it('should interpret version 005.000 as version 3.8', function () {
send_ver('005.000', client);
expect(client._rfb_version).to.equal(3.8);
});
it('should fail on an invalid version', function () {
sinon.spy(client, "_fail");
send_ver('002.000', client);
expect(client._fail).to.have.been.calledOnce;
});
});
it('should send back the interpreted version', function () {
send_ver('004.000', client);
const expected_str = 'RFB 003.008\n';
const expected = [];
for (let i = 0; i < expected_str.length; i++) {
expected[i] = expected_str.charCodeAt(i);
}
expect(client._sock).to.have.sent(new Uint8Array(expected));
});
it('should transition to the Security state on successful negotiation', function () {
send_ver('003.008', client);
expect(client._rfb_init_state).to.equal('Security');
});
describe('Repeater', function () {
beforeEach(function () {
client = make_rfb('wss://host:8675', { repeaterID: "12345" });
client._rfb_connection_state = 'connecting';
});
it('should interpret version 000.000 as a repeater', function () {
send_ver('000.000', client);
expect(client._rfb_version).to.equal(0);
const sent_data = client._sock._websocket._get_sent_data();
expect(new Uint8Array(sent_data.buffer, 0, 9)).to.array.equal(new Uint8Array([73, 68, 58, 49, 50, 51, 52, 53, 0]));
expect(sent_data).to.have.length(250);
});
it('should handle two step repeater negotiation', function () {
send_ver('000.000', client);
send_ver('003.008', client);
expect(client._rfb_version).to.equal(3.8);
});
});
});
describe('Security', function () {
beforeEach(function () {
client._rfb_init_state = 'Security';
});
it('should simply receive the auth scheme when for versions < 3.7', function () {
client._rfb_version = 3.6;
const auth_scheme_raw = [1, 2, 3, 4];
const auth_scheme = (auth_scheme_raw[0] << 24) + (auth_scheme_raw[1] << 16) +
(auth_scheme_raw[2] << 8) + auth_scheme_raw[3];
client._sock._websocket._receive_data(new Uint8Array(auth_scheme_raw));
expect(client._rfb_auth_scheme).to.equal(auth_scheme);
});
it('should prefer no authentication is possible', function () {
client._rfb_version = 3.7;
const auth_schemes = [2, 1, 3];
client._sock._websocket._receive_data(new Uint8Array(auth_schemes));
expect(client._rfb_auth_scheme).to.equal(1);
expect(client._sock).to.have.sent(new Uint8Array([1, 1]));
});
it('should choose for the most prefered scheme possible for versions >= 3.7', function () {
client._rfb_version = 3.7;
const auth_schemes = [2, 22, 16];
client._sock._websocket._receive_data(new Uint8Array(auth_schemes));
expect(client._rfb_auth_scheme).to.equal(22);
expect(client._sock).to.have.sent(new Uint8Array([22]));
});
it('should fail if there are no supported schemes for versions >= 3.7', function () {
sinon.spy(client, "_fail");
client._rfb_version = 3.7;
const auth_schemes = [1, 32];
client._sock._websocket._receive_data(new Uint8Array(auth_schemes));
expect(client._fail).to.have.been.calledOnce;
});
it('should fail with the appropriate message if no types are sent for versions >= 3.7', function () {
client._rfb_version = 3.7;
const failure_data = [0, 0, 0, 0, 6, 119, 104, 111, 111, 112, 115];
sinon.spy(client, '_fail');
client._sock._websocket._receive_data(new Uint8Array(failure_data));
expect(client._fail).to.have.been.calledOnce;
expect(client._fail).to.have.been.calledWith(
'Security negotiation failed on no security types (reason: whoops)');
});
it('should transition to the Authentication state and continue on successful negotiation', function () {
client._rfb_version = 3.7;
const auth_schemes = [1, 1];
client._negotiate_authentication = sinon.spy();
client._sock._websocket._receive_data(new Uint8Array(auth_schemes));
expect(client._rfb_init_state).to.equal('Authentication');
expect(client._negotiate_authentication).to.have.been.calledOnce;
});
});
describe('Authentication', function () {
beforeEach(function () {
client._rfb_init_state = 'Security';
});
function send_security(type, cl) {
cl._sock._websocket._receive_data(new Uint8Array([1, type]));
}
it('should fail on auth scheme 0 (pre 3.7) with the given message', function () {
client._rfb_version = 3.6;
const err_msg = "Whoopsies";
const data = [0, 0, 0, 0];
const err_len = err_msg.length;
push32(data, err_len);
for (let i = 0; i < err_len; i++) {
data.push(err_msg.charCodeAt(i));
}
sinon.spy(client, '_fail');
client._sock._websocket._receive_data(new Uint8Array(data));
expect(client._fail).to.have.been.calledWith(
'Security negotiation failed on authentication scheme (reason: Whoopsies)');
});
it('should transition straight to SecurityResult on "no auth" (1) for versions >= 3.8', function () {
client._rfb_version = 3.8;
send_security(1, client);
expect(client._rfb_init_state).to.equal('SecurityResult');
});
it('should transition straight to ServerInitialisation on "no auth" for versions < 3.8', function () {
client._rfb_version = 3.7;
send_security(1, client);
expect(client._rfb_init_state).to.equal('ServerInitialisation');
});
it('should fail on an unknown auth scheme', function () {
sinon.spy(client, "_fail");
client._rfb_version = 3.8;
send_security(57, client);
expect(client._fail).to.have.been.calledOnce;
});
describe('VNC Authentication (type 2) Handler', function () {
beforeEach(function () {
client._rfb_init_state = 'Security';
client._rfb_version = 3.8;
});
it('should fire the credentialsrequired event if missing a password', function () {
const spy = sinon.spy();
client.addEventListener("credentialsrequired", spy);
send_security(2, client);
const challenge = [];
for (let i = 0; i < 16; i++) { challenge[i] = i; }
client._sock._websocket._receive_data(new Uint8Array(challenge));
expect(client._rfb_credentials).to.be.empty;
expect(spy).to.have.been.calledOnce;
expect(spy.args[0][0].detail.types).to.have.members(["password"]);
});
it('should encrypt the password with DES and then send it back', function () {
client._rfb_credentials = { password: 'passwd' };
send_security(2, client);
client._sock._websocket._get_sent_data(); // skip the choice of auth reply
const challenge = [];
for (let i = 0; i < 16; i++) { challenge[i] = i; }
client._sock._websocket._receive_data(new Uint8Array(challenge));
const des_pass = RFB.genDES('passwd', challenge);
expect(client._sock).to.have.sent(new Uint8Array(des_pass));
});
it('should transition to SecurityResult immediately after sending the password', function () {
client._rfb_credentials = { password: 'passwd' };
send_security(2, client);
const challenge = [];
for (let i = 0; i < 16; i++) { challenge[i] = i; }
client._sock._websocket._receive_data(new Uint8Array(challenge));
expect(client._rfb_init_state).to.equal('SecurityResult');
});
});
describe('XVP Authentication (type 22) Handler', function () {
beforeEach(function () {
client._rfb_init_state = 'Security';
client._rfb_version = 3.8;
});
it('should fall through to standard VNC authentication upon completion', function () {
client._rfb_credentials = { username: 'user',
target: 'target',
password: 'password' };
client._negotiate_std_vnc_auth = sinon.spy();
send_security(22, client);
expect(client._negotiate_std_vnc_auth).to.have.been.calledOnce;
});
it('should fire the credentialsrequired event if all credentials are missing', function () {
const spy = sinon.spy();
client.addEventListener("credentialsrequired", spy);
client._rfb_credentials = {};
send_security(22, client);
expect(client._rfb_credentials).to.be.empty;
expect(spy).to.have.been.calledOnce;
expect(spy.args[0][0].detail.types).to.have.members(["username", "password", "target"]);
});
it('should fire the credentialsrequired event if some credentials are missing', function () {
const spy = sinon.spy();
client.addEventListener("credentialsrequired", spy);
client._rfb_credentials = { username: 'user',
target: 'target' };
send_security(22, client);
expect(spy).to.have.been.calledOnce;
expect(spy.args[0][0].detail.types).to.have.members(["username", "password", "target"]);
});
it('should send user and target separately', function () {
client._rfb_credentials = { username: 'user',
target: 'target',
password: 'password' };
client._negotiate_std_vnc_auth = sinon.spy();
send_security(22, client);
const expected = [22, 4, 6]; // auth selection, len user, len target
for (let i = 0; i < 10; i++) { expected[i+3] = 'usertarget'.charCodeAt(i); }
expect(client._sock).to.have.sent(new Uint8Array(expected));
});
});
describe('TightVNC Authentication (type 16) Handler', function () {
beforeEach(function () {
client._rfb_init_state = 'Security';
client._rfb_version = 3.8;
send_security(16, client);
client._sock._websocket._get_sent_data(); // skip the security reply
});
function send_num_str_pairs(pairs, client) {
const data = [];
push32(data, pairs.length);
for (let i = 0; i < pairs.length; i++) {
push32(data, pairs[i][0]);
for (let j = 0; j < 4; j++) {
data.push(pairs[i][1].charCodeAt(j));
}
for (let j = 0; j < 8; j++) {
data.push(pairs[i][2].charCodeAt(j));
}
}
client._sock._websocket._receive_data(new Uint8Array(data));
}
it('should skip tunnel negotiation if no tunnels are requested', function () {
client._sock._websocket._receive_data(new Uint8Array([0, 0, 0, 0]));
expect(client._rfb_tightvnc).to.be.true;
});
it('should fail if no supported tunnels are listed', function () {
sinon.spy(client, "_fail");
send_num_str_pairs([[123, 'OTHR', 'SOMETHNG']], client);
expect(client._fail).to.have.been.calledOnce;
});
it('should choose the notunnel tunnel type', function () {
send_num_str_pairs([[0, 'TGHT', 'NOTUNNEL'], [123, 'OTHR', 'SOMETHNG']], client);
expect(client._sock).to.have.sent(new Uint8Array([0, 0, 0, 0]));
});
it('should choose the notunnel tunnel type for Siemens devices', function () {
send_num_str_pairs([[1, 'SICR', 'SCHANNEL'], [2, 'SICR', 'SCHANLPW']], client);
expect(client._sock).to.have.sent(new Uint8Array([0, 0, 0, 0]));
});
it('should continue to sub-auth negotiation after tunnel negotiation', function () {
send_num_str_pairs([[0, 'TGHT', 'NOTUNNEL']], client);
client._sock._websocket._get_sent_data(); // skip the tunnel choice here
send_num_str_pairs([[1, 'STDV', 'NOAUTH__']], client);
expect(client._sock).to.have.sent(new Uint8Array([0, 0, 0, 1]));
expect(client._rfb_init_state).to.equal('SecurityResult');
});
/*it('should attempt to use VNC auth over no auth when possible', function () {
client._rfb_tightvnc = true;
client._negotiate_std_vnc_auth = sinon.spy();
send_num_str_pairs([[1, 'STDV', 'NOAUTH__'], [2, 'STDV', 'VNCAUTH_']], client);
expect(client._sock).to.have.sent([0, 0, 0, 1]);
expect(client._negotiate_std_vnc_auth).to.have.been.calledOnce;
expect(client._rfb_auth_scheme).to.equal(2);
});*/ // while this would make sense, the original code doesn't actually do this
it('should accept the "no auth" auth type and transition to SecurityResult', function () {
client._rfb_tightvnc = true;
send_num_str_pairs([[1, 'STDV', 'NOAUTH__']], client);
expect(client._sock).to.have.sent(new Uint8Array([0, 0, 0, 1]));
expect(client._rfb_init_state).to.equal('SecurityResult');
});
it('should accept VNC authentication and transition to that', function () {
client._rfb_tightvnc = true;
client._negotiate_std_vnc_auth = sinon.spy();
send_num_str_pairs([[2, 'STDV', 'VNCAUTH__']], client);
expect(client._sock).to.have.sent(new Uint8Array([0, 0, 0, 2]));
expect(client._negotiate_std_vnc_auth).to.have.been.calledOnce;
expect(client._rfb_auth_scheme).to.equal(2);
});
it('should fail if there are no supported auth types', function () {
sinon.spy(client, "_fail");
client._rfb_tightvnc = true;
send_num_str_pairs([[23, 'stdv', 'badval__']], client);
expect(client._fail).to.have.been.calledOnce;
});
});
});
describe('SecurityResult', function () {
beforeEach(function () {
client._rfb_init_state = 'SecurityResult';
});
it('should fall through to ServerInitialisation on a response code of 0', function () {
client._sock._websocket._receive_data(new Uint8Array([0, 0, 0, 0]));
expect(client._rfb_init_state).to.equal('ServerInitialisation');
});
it('should fail on an error code of 1 with the given message for versions >= 3.8', function () {
client._rfb_version = 3.8;
sinon.spy(client, '_fail');
const failure_data = [0, 0, 0, 1, 0, 0, 0, 6, 119, 104, 111, 111, 112, 115];
client._sock._websocket._receive_data(new Uint8Array(failure_data));
expect(client._fail).to.have.been.calledWith(
'Security negotiation failed on security result (reason: whoops)');
});
it('should fail on an error code of 1 with a standard message for version < 3.8', function () {
sinon.spy(client, '_fail');
client._rfb_version = 3.7;
client._sock._websocket._receive_data(new Uint8Array([0, 0, 0, 1]));
expect(client._fail).to.have.been.calledWith(
'Security handshake failed');
});
it('should result in securityfailure event when receiving a non zero status', function () {
const spy = sinon.spy();
client.addEventListener("securityfailure", spy);
client._sock._websocket._receive_data(new Uint8Array([0, 0, 0, 2]));
expect(spy).to.have.been.calledOnce;
expect(spy.args[0][0].detail.status).to.equal(2);
});
it('should include reason when provided in securityfailure event', function () {
client._rfb_version = 3.8;
const spy = sinon.spy();
client.addEventListener("securityfailure", spy);
const failure_data = [0, 0, 0, 1, 0, 0, 0, 12, 115, 117, 99, 104,
32, 102, 97, 105, 108, 117, 114, 101];
client._sock._websocket._receive_data(new Uint8Array(failure_data));
expect(spy.args[0][0].detail.status).to.equal(1);
expect(spy.args[0][0].detail.reason).to.equal('such failure');
});
it('should not include reason when length is zero in securityfailure event', function () {
client._rfb_version = 3.9;
const spy = sinon.spy();
client.addEventListener("securityfailure", spy);
const failure_data = [0, 0, 0, 1, 0, 0, 0, 0];
client._sock._websocket._receive_data(new Uint8Array(failure_data));
expect(spy.args[0][0].detail.status).to.equal(1);
expect('reason' in spy.args[0][0].detail).to.be.false;
});
it('should not include reason in securityfailure event for version < 3.8', function () {
client._rfb_version = 3.6;
const spy = sinon.spy();
client.addEventListener("securityfailure", spy);
client._sock._websocket._receive_data(new Uint8Array([0, 0, 0, 2]));
expect(spy.args[0][0].detail.status).to.equal(2);
expect('reason' in spy.args[0][0].detail).to.be.false;
});
});
describe('ClientInitialisation', function () {
it('should transition to the ServerInitialisation state', function () {
const client = make_rfb();
client._rfb_connection_state = 'connecting';
client._rfb_init_state = 'SecurityResult';
client._sock._websocket._receive_data(new Uint8Array([0, 0, 0, 0]));
expect(client._rfb_init_state).to.equal('ServerInitialisation');
});
it('should send 1 if we are in shared mode', function () {
const client = make_rfb('wss://host:8675', { shared: true });
client._rfb_connection_state = 'connecting';
client._rfb_init_state = 'SecurityResult';
client._sock._websocket._receive_data(new Uint8Array([0, 0, 0, 0]));
expect(client._sock).to.have.sent(new Uint8Array([1]));
});
it('should send 0 if we are not in shared mode', function () {
const client = make_rfb('wss://host:8675', { shared: false });
client._rfb_connection_state = 'connecting';
client._rfb_init_state = 'SecurityResult';
client._sock._websocket._receive_data(new Uint8Array([0, 0, 0, 0]));
expect(client._sock).to.have.sent(new Uint8Array([0]));
});
});
describe('ServerInitialisation', function () {
beforeEach(function () {
client._rfb_init_state = 'ServerInitialisation';
});
function send_server_init(opts, client) {
const full_opts = { width: 10, height: 12, bpp: 24, depth: 24, big_endian: 0,
true_color: 1, red_max: 255, green_max: 255, blue_max: 255,
red_shift: 16, green_shift: 8, blue_shift: 0, name: 'a name' };
for (let opt in opts) {
full_opts[opt] = opts[opt];
}
const data = [];
push16(data, full_opts.width);
push16(data, full_opts.height);
data.push(full_opts.bpp);
data.push(full_opts.depth);
data.push(full_opts.big_endian);
data.push(full_opts.true_color);
push16(data, full_opts.red_max);
push16(data, full_opts.green_max);
push16(data, full_opts.blue_max);
push8(data, full_opts.red_shift);
push8(data, full_opts.green_shift);
push8(data, full_opts.blue_shift);
// padding
push8(data, 0);
push8(data, 0);
push8(data, 0);
client._sock._websocket._receive_data(new Uint8Array(data));
const name_data = [];
let name_len = [];
pushString(name_data, full_opts.name);
push32(name_len, name_data.length);
client._sock._websocket._receive_data(new Uint8Array(name_len));
client._sock._websocket._receive_data(new Uint8Array(name_data));
}
it('should set the framebuffer width and height', function () {
send_server_init({ width: 32, height: 84 }, client);
expect(client._fb_width).to.equal(32);
expect(client._fb_height).to.equal(84);
});
// NB(sross): we just warn, not fail, for endian-ness and shifts, so we don't test them
it('should set the framebuffer name and call the callback', function () {
const spy = sinon.spy();
client.addEventListener("desktopname", spy);
send_server_init({ name: 'som€ nam€' }, client);
expect(client._fb_name).to.equal('som€ nam€');
expect(spy).to.have.been.calledOnce;
expect(spy.args[0][0].detail.name).to.equal('som€ nam€');
});
it('should handle the extended init message of the tight encoding', function () {
// NB(sross): we don't actually do anything with it, so just test that we can
// read it w/o throwing an error
client._rfb_tightvnc = true;
send_server_init({}, client);
const tight_data = [];
push16(tight_data, 1);
push16(tight_data, 2);
push16(tight_data, 3);
push16(tight_data, 0);
for (let i = 0; i < 16 + 32 + 48; i++) {
tight_data.push(i);
}
client._sock._websocket._receive_data(new Uint8Array(tight_data));
expect(client._rfb_connection_state).to.equal('connected');
});
it('should resize the display', function () {
sinon.spy(client._display, 'resize');
send_server_init({ width: 27, height: 32 }, client);
expect(client._display.resize).to.have.been.calledOnce;
expect(client._display.resize).to.have.been.calledWith(27, 32);
});
it('should grab the mouse and keyboard', function () {
sinon.spy(client._keyboard, 'grab');
sinon.spy(client._mouse, 'grab');
send_server_init({}, client);
expect(client._keyboard.grab).to.have.been.calledOnce;
expect(client._mouse.grab).to.have.been.calledOnce;
});
describe('Initial Update Request', function () {
beforeEach(function () {
sinon.spy(RFB.messages, "pixelFormat");
sinon.spy(RFB.messages, "clientEncodings");
sinon.spy(RFB.messages, "fbUpdateRequest");
});
afterEach(function () {
RFB.messages.pixelFormat.restore();
RFB.messages.clientEncodings.restore();
RFB.messages.fbUpdateRequest.restore();
});
// TODO(directxman12): test the various options in this configuration matrix
it('should reply with the pixel format, client encodings, and initial update request', function () {
send_server_init({ width: 27, height: 32 }, client);
expect(RFB.messages.pixelFormat).to.have.been.calledOnce;
expect(RFB.messages.pixelFormat).to.have.been.calledWith(client._sock, 24, true);
expect(RFB.messages.pixelFormat).to.have.been.calledBefore(RFB.messages.clientEncodings);
expect(RFB.messages.clientEncodings).to.have.been.calledOnce;
expect(RFB.messages.clientEncodings.getCall(0).args[1]).to.include(encodings.encodingTight);
expect(RFB.messages.clientEncodings).to.have.been.calledBefore(RFB.messages.fbUpdateRequest);
expect(RFB.messages.fbUpdateRequest).to.have.been.calledOnce;
expect(RFB.messages.fbUpdateRequest).to.have.been.calledWith(client._sock, false, 0, 0, 27, 32);
});
it('should reply with restricted settings for Intel AMT servers', function () {
send_server_init({ width: 27, height: 32, name: "Intel(r) AMT KVM"}, client);
expect(RFB.messages.pixelFormat).to.have.been.calledOnce;
expect(RFB.messages.pixelFormat).to.have.been.calledWith(client._sock, 8, true);
expect(RFB.messages.pixelFormat).to.have.been.calledBefore(RFB.messages.clientEncodings);
expect(RFB.messages.clientEncodings).to.have.been.calledOnce;
expect(RFB.messages.clientEncodings.getCall(0).args[1]).to.not.include(encodings.encodingTight);
expect(RFB.messages.clientEncodings.getCall(0).args[1]).to.not.include(encodings.encodingHextile);
expect(RFB.messages.clientEncodings).to.have.been.calledBefore(RFB.messages.fbUpdateRequest);
expect(RFB.messages.fbUpdateRequest).to.have.been.calledOnce;
expect(RFB.messages.fbUpdateRequest).to.have.been.calledWith(client._sock, false, 0, 0, 27, 32);
});
});
it('should transition to the "connected" state', function () {
send_server_init({}, client);
expect(client._rfb_connection_state).to.equal('connected');
});
});
});
describe('Protocol Message Processing After Completing Initialization', function () {
let client;
beforeEach(function () {
client = make_rfb();
client._fb_name = 'some device';
client._fb_width = 640;
client._fb_height = 20;
});
describe('Framebuffer Update Handling', function () {
const target_data_arr = [
0xff, 0x00, 0x00, 255, 0x00, 0xff, 0x00, 255, 0x00, 0x00, 0xff, 255, 0x00, 0x00, 0xff, 255,
0x00, 0xff, 0x00, 255, 0xff, 0x00, 0x00, 255, 0x00, 0x00, 0xff, 255, 0x00, 0x00, 0xff, 255,
0xee, 0x00, 0xff, 255, 0x00, 0xee, 0xff, 255, 0xaa, 0xee, 0xff, 255, 0xab, 0xee, 0xff, 255,
0xee, 0x00, 0xff, 255, 0x00, 0xee, 0xff, 255, 0xaa, 0xee, 0xff, 255, 0xab, 0xee, 0xff, 255
];
let target_data;
const target_data_check_arr = [
0x00, 0x00, 0xff, 255, 0x00, 0x00, 0xff, 255, 0x00, 0xff, 0x00, 255, 0x00, 0xff, 0x00, 255,
0x00, 0x00, 0xff, 255, 0x00, 0x00, 0xff, 255, 0x00, 0xff, 0x00, 255, 0x00, 0xff, 0x00, 255,
0x00, 0xff, 0x00, 255, 0x00, 0xff, 0x00, 255, 0x00, 0x00, 0xff, 255, 0x00, 0x00, 0xff, 255,
0x00, 0xff, 0x00, 255, 0x00, 0xff, 0x00, 255, 0x00, 0x00, 0xff, 255, 0x00, 0x00, 0xff, 255
];
let target_data_check;
before(function () {
// NB(directxman12): PhantomJS 1.x doesn't implement Uint8ClampedArray
target_data = new Uint8Array(target_data_arr);
target_data_check = new Uint8Array(target_data_check_arr);
});
function send_fbu_msg(rect_info, rect_data, client, rect_cnt) {
let data = [];
if (!rect_cnt || rect_cnt > -1) {
// header
data.push(0); // msg type
data.push(0); // padding
push16(data, rect_cnt || rect_data.length);
}
for (let i = 0; i < rect_data.length; i++) {
if (rect_info[i]) {
push16(data, rect_info[i].x);
push16(data, rect_info[i].y);
push16(data, rect_info[i].width);
push16(data, rect_info[i].height);
push32(data, rect_info[i].encoding);
}
data = data.concat(rect_data[i]);
}
client._sock._websocket._receive_data(new Uint8Array(data));
}
it('should send an update request if there is sufficient data', function () {
const expected_msg = {_sQ: new Uint8Array(10), _sQlen: 0, flush: () => {}};
RFB.messages.fbUpdateRequest(expected_msg, true, 0, 0, 640, 20);
client._framebufferUpdate = () => true;
client._sock._websocket._receive_data(new Uint8Array([0]));
expect(client._sock).to.have.sent(expected_msg._sQ);
});
it('should not send an update request if we need more data', function () {
client._sock._websocket._receive_data(new Uint8Array([0]));
expect(client._sock._websocket._get_sent_data()).to.have.length(0);
});
it('should resume receiving an update if we previously did not have enough data', function () {
const expected_msg = {_sQ: new Uint8Array(10), _sQlen: 0, flush: () => {}};
RFB.messages.fbUpdateRequest(expected_msg, true, 0, 0, 640, 20);
// just enough to set FBU.rects
client._sock._websocket._receive_data(new Uint8Array([0, 0, 0, 3]));
expect(client._sock._websocket._get_sent_data()).to.have.length(0);
client._framebufferUpdate = function () { this._sock.rQskipBytes(1); return true; }; // we magically have enough data
// 247 should *not* be used as the message type here
client._sock._websocket._receive_data(new Uint8Array([247]));
expect(client._sock).to.have.sent(expected_msg._sQ);
});
it('should not send a request in continuous updates mode', function () {
client._enabledContinuousUpdates = true;
client._framebufferUpdate = () => true;
client._sock._websocket._receive_data(new Uint8Array([0]));
expect(client._sock._websocket._get_sent_data()).to.have.length(0);
});
it('should fail on an unsupported encoding', function () {
sinon.spy(client, "_fail");
const rect_info = { x: 8, y: 11, width: 27, height: 32, encoding: 234 };
send_fbu_msg([rect_info], [[]], client);
expect(client._fail).to.have.been.calledOnce;
});
it('should be able to pause and resume receiving rects if not enought data', function () {
// seed some initial data to copy
client._fb_width = 4;
client._fb_height = 4;
client._display.resize(4, 4);
client._display.blitRgbxImage(0, 0, 4, 2, new Uint8Array(target_data_check_arr.slice(0, 32)), 0);
const info = [{ x: 0, y: 2, width: 2, height: 2, encoding: 0x01},
{ x: 2, y: 2, width: 2, height: 2, encoding: 0x01}];
// data says [{ old_x: 2, old_y: 0 }, { old_x: 0, old_y: 0 }]
const rects = [[0, 2, 0, 0], [0, 0, 0, 0]];
send_fbu_msg([info[0]], [rects[0]], client, 2);
send_fbu_msg([info[1]], [rects[1]], client, -1);
expect(client._display).to.have.displayed(target_data_check);
});
describe('Message Encoding Handlers', function () {
beforeEach(function () {
// a really small frame
client._fb_width = 4;
client._fb_height = 4;
client._fb_depth = 24;
client._display.resize(4, 4);
});
it('should handle the RAW encoding', function () {
const info = [{ x: 0, y: 0, width: 2, height: 2, encoding: 0x00 },
{ x: 2, y: 0, width: 2, height: 2, encoding: 0x00 },
{ x: 0, y: 2, width: 4, height: 1, encoding: 0x00 },
{ x: 0, y: 3, width: 4, height: 1, encoding: 0x00 }];
// data is in bgrx
const rects = [
[0x00, 0x00, 0xff, 0, 0x00, 0xff, 0x00, 0, 0x00, 0xff, 0x00, 0, 0x00, 0x00, 0xff, 0],
[0xff, 0x00, 0x00, 0, 0xff, 0x00, 0x00, 0, 0xff, 0x00, 0x00, 0, 0xff, 0x00, 0x00, 0],
[0xff, 0x00, 0xee, 0, 0xff, 0xee, 0x00, 0, 0xff, 0xee, 0xaa, 0, 0xff, 0xee, 0xab, 0],
[0xff, 0x00, 0xee, 0, 0xff, 0xee, 0x00, 0, 0xff, 0xee, 0xaa, 0, 0xff, 0xee, 0xab, 0]];
send_fbu_msg(info, rects, client);
expect(client._display).to.have.displayed(target_data);
});
it('should handle the RAW encoding in low colour mode', function () {
const info = [{ x: 0, y: 0, width: 2, height: 2, encoding: 0x00 },
{ x: 2, y: 0, width: 2, height: 2, encoding: 0x00 },
{ x: 0, y: 2, width: 4, height: 1, encoding: 0x00 },
{ x: 0, y: 3, width: 4, height: 1, encoding: 0x00 }];
const rects = [
[0x03, 0x03, 0x03, 0x03],
[0x0c, 0x0c, 0x0c, 0x0c],
[0x0c, 0x0c, 0x03, 0x03],
[0x0c, 0x0c, 0x03, 0x03]];
client._fb_depth = 8;
send_fbu_msg(info, rects, client);
expect(client._display).to.have.displayed(target_data_check);
});
it('should handle the COPYRECT encoding', function () {
// seed some initial data to copy
client._display.blitRgbxImage(0, 0, 4, 2, new Uint8Array(target_data_check_arr.slice(0, 32)), 0);
const info = [{ x: 0, y: 2, width: 2, height: 2, encoding: 0x01},
{ x: 2, y: 2, width: 2, height: 2, encoding: 0x01}];
// data says [{ old_x: 0, old_y: 0 }, { old_x: 0, old_y: 0 }]
const rects = [[0, 2, 0, 0], [0, 0, 0, 0]];
send_fbu_msg(info, rects, client);
expect(client._display).to.have.displayed(target_data_check);
});
// TODO(directxman12): for encodings with subrects, test resuming on partial send?
// TODO(directxman12): test rre_chunk_sz (related to above about subrects)?
it('should handle the RRE encoding', function () {
const info = [{ x: 0, y: 0, width: 4, height: 4, encoding: 0x02 }];
const rect = [];
push32(rect, 2); // 2 subrects
push32(rect, 0xff00ff); // becomes 00ff00ff --> #00FF00 bg color
rect.push(0xff); // becomes ff0000ff --> #0000FF color
rect.push(0x00);
rect.push(0x00);
rect.push(0xff);
push16(rect, 0); // x: 0
push16(rect, 0); // y: 0
push16(rect, 2); // width: 2
push16(rect, 2); // height: 2
rect.push(0xff); // becomes ff0000ff --> #0000FF color
rect.push(0x00);
rect.push(0x00);
rect.push(0xff);
push16(rect, 2); // x: 2
push16(rect, 2); // y: 2
push16(rect, 2); // width: 2
push16(rect, 2); // height: 2
send_fbu_msg(info, [rect], client);
expect(client._display).to.have.displayed(target_data_check);
});
describe('the HEXTILE encoding handler', function () {
it('should handle a tile with fg, bg specified, normal subrects', function () {
const info = [{ x: 0, y: 0, width: 4, height: 4, encoding: 0x05 }];
const rect = [];
rect.push(0x02 | 0x04 | 0x08); // bg spec, fg spec, anysubrects
push32(rect, 0xff00ff); // becomes 00ff00ff --> #00FF00 bg color
rect.push(0xff); // becomes ff0000ff --> #0000FF fg color
rect.push(0x00);
rect.push(0x00);
rect.push(0xff);
rect.push(2); // 2 subrects
rect.push(0); // x: 0, y: 0
rect.push(1 | (1 << 4)); // width: 2, height: 2
rect.push(2 | (2 << 4)); // x: 2, y: 2
rect.push(1 | (1 << 4)); // width: 2, height: 2
send_fbu_msg(info, [rect], client);
expect(client._display).to.have.displayed(target_data_check);
});
it('should handle a raw tile', function () {
const info = [{ x: 0, y: 0, width: 4, height: 4, encoding: 0x05 }];
const rect = [];
rect.push(0x01); // raw
for (let i = 0; i < target_data.length; i += 4) {
rect.push(target_data[i + 2]);
rect.push(target_data[i + 1]);
rect.push(target_data[i]);
rect.push(target_data[i + 3]);
}
send_fbu_msg(info, [rect], client);
expect(client._display).to.have.displayed(target_data);
});
it('should handle a tile with only bg specified (solid bg)', function () {
const info = [{ x: 0, y: 0, width: 4, height: 4, encoding: 0x05 }];
const rect = [];
rect.push(0x02);
push32(rect, 0xff00ff); // becomes 00ff00ff --> #00FF00 bg color
send_fbu_msg(info, [rect], client);
const expected = [];
for (let i = 0; i < 16; i++) { push32(expected, 0xff00ff); }
expect(client._display).to.have.displayed(new Uint8Array(expected));
});
it('should handle a tile with only bg specified and an empty frame afterwards', function () {
// set the width so we can have two tiles
client._fb_width = 8;
client._display.resize(8, 4);
const info = [{ x: 0, y: 0, width: 32, height: 4, encoding: 0x05 }];
const rect = [];
// send a bg frame
rect.push(0x02);
push32(rect, 0xff00ff); // becomes 00ff00ff --> #00FF00 bg color
// send an empty frame
rect.push(0x00);
send_fbu_msg(info, [rect], client);
const expected = [];
for (let i = 0; i < 16; i++) { push32(expected, 0xff00ff); } // rect 1: solid
for (let i = 0; i < 16; i++) { push32(expected, 0xff00ff); } // rect 2: same bkground color
expect(client._display).to.have.displayed(new Uint8Array(expected));
});
it('should handle a tile with bg and coloured subrects', function () {
const info = [{ x: 0, y: 0, width: 4, height: 4, encoding: 0x05 }];
const rect = [];
rect.push(0x02 | 0x08 | 0x10); // bg spec, anysubrects, colouredsubrects
push32(rect, 0xff00ff); // becomes 00ff00ff --> #00FF00 bg color
rect.push(2); // 2 subrects
rect.push(0xff); // becomes ff0000ff --> #0000FF fg color
rect.push(0x00);
rect.push(0x00);
rect.push(0xff);
rect.push(0); // x: 0, y: 0
rect.push(1 | (1 << 4)); // width: 2, height: 2
rect.push(0xff); // becomes ff0000ff --> #0000FF fg color
rect.push(0x00);
rect.push(0x00);
rect.push(0xff);
rect.push(2 | (2 << 4)); // x: 2, y: 2
rect.push(1 | (1 << 4)); // width: 2, height: 2
send_fbu_msg(info, [rect], client);
expect(client._display).to.have.displayed(target_data_check);
});
it('should carry over fg and bg colors from the previous tile if not specified', function () {
client._fb_width = 4;
client._fb_height = 17;
client._display.resize(4, 17);
const info = [{ x: 0, y: 0, width: 4, height: 17, encoding: 0x05}];
const rect = [];
rect.push(0x02 | 0x04 | 0x08); // bg spec, fg spec, anysubrects
push32(rect, 0xff00ff); // becomes 00ff00ff --> #00FF00 bg color
rect.push(0xff); // becomes ff0000ff --> #0000FF fg color
rect.push(0x00);
rect.push(0x00);
rect.push(0xff);
rect.push(8); // 8 subrects
for (let i = 0; i < 4; i++) {
rect.push((0 << 4) | (i * 4)); // x: 0, y: i*4
rect.push(1 | (1 << 4)); // width: 2, height: 2
rect.push((2 << 4) | (i * 4 + 2)); // x: 2, y: i * 4 + 2
rect.push(1 | (1 << 4)); // width: 2, height: 2
}
rect.push(0x08); // anysubrects
rect.push(1); // 1 subrect
rect.push(0); // x: 0, y: 0
rect.push(1 | (1 << 4)); // width: 2, height: 2
send_fbu_msg(info, [rect], client);
let expected = [];
for (let i = 0; i < 4; i++) { expected = expected.concat(target_data_check_arr); }
expected = expected.concat(target_data_check_arr.slice(0, 16));
expect(client._display).to.have.displayed(new Uint8Array(expected));
});
it('should fail on an invalid subencoding', function () {
sinon.spy(client, "_fail");
const info = [{ x: 0, y: 0, width: 4, height: 4, encoding: 0x05 }];
const rects = [[45]]; // an invalid subencoding
send_fbu_msg(info, rects, client);
expect(client._fail).to.have.been.calledOnce;
});
});
it.skip('should handle the TIGHT encoding', function () {
// TODO(directxman12): test this
});
it.skip('should handle the TIGHT_PNG encoding', function () {
// TODO(directxman12): test this
});
it('should handle the DesktopSize pseduo-encoding', function () {
sinon.spy(client._display, 'resize');
send_fbu_msg([{ x: 0, y: 0, width: 20, height: 50, encoding: -223 }], [[]], client);
expect(client._fb_width).to.equal(20);
expect(client._fb_height).to.equal(50);
expect(client._display.resize).to.have.been.calledOnce;
expect(client._display.resize).to.have.been.calledWith(20, 50);
});
describe('the ExtendedDesktopSize pseudo-encoding handler', function () {
beforeEach(function () {
// a really small frame
client._fb_width = 4;
client._fb_height = 4;
client._display.resize(4, 4);
sinon.spy(client._display, 'resize');
});
function make_screen_data(nr_of_screens) {
const data = [];
push8(data, nr_of_screens); // number-of-screens
push8(data, 0); // padding
push16(data, 0); // padding
for (let i=0; i<nr_of_screens; i += 1) {
push32(data, 0); // id
push16(data, 0); // x-position
push16(data, 0); // y-position
push16(data, 20); // width
push16(data, 50); // height
push32(data, 0); // flags
}
return data;
}
it('should handle a resize requested by this client', function () {
const reason_for_change = 1; // requested by this client
const status_code = 0; // No error
send_fbu_msg([{ x: reason_for_change, y: status_code,
width: 20, height: 50, encoding: -308 }],
make_screen_data(1), client);
expect(client._fb_width).to.equal(20);
expect(client._fb_height).to.equal(50);
expect(client._display.resize).to.have.been.calledOnce;
expect(client._display.resize).to.have.been.calledWith(20, 50);
});
it('should handle a resize requested by another client', function () {
const reason_for_change = 2; // requested by another client
const status_code = 0; // No error
send_fbu_msg([{ x: reason_for_change, y: status_code,
width: 20, height: 50, encoding: -308 }],
make_screen_data(1), client);
expect(client._fb_width).to.equal(20);
expect(client._fb_height).to.equal(50);
expect(client._display.resize).to.have.been.calledOnce;
expect(client._display.resize).to.have.been.calledWith(20, 50);
});
it('should be able to recieve requests which contain data for multiple screens', function () {
const reason_for_change = 2; // requested by another client
const status_code = 0; // No error
send_fbu_msg([{ x: reason_for_change, y: status_code,
width: 60, height: 50, encoding: -308 }],
make_screen_data(3), client);
expect(client._fb_width).to.equal(60);
expect(client._fb_height).to.equal(50);
expect(client._display.resize).to.have.been.calledOnce;
expect(client._display.resize).to.have.been.calledWith(60, 50);
});
it('should not handle a failed request', function () {
const reason_for_change = 1; // requested by this client
const status_code = 1; // Resize is administratively prohibited
send_fbu_msg([{ x: reason_for_change, y: status_code,
width: 20, height: 50, encoding: -308 }],
make_screen_data(1), client);
expect(client._fb_width).to.equal(4);
expect(client._fb_height).to.equal(4);
expect(client._display.resize).to.not.have.been.called;
});
});
describe('the Cursor pseudo-encoding handler', function () {
beforeEach(function () {
sinon.spy(client._cursor, 'change');
});
it('should handle a standard cursor', function () {
const info = { x: 5, y: 7,
width: 4, height: 4,
encoding: -239};
let rect = [];
let expected = [];
for (let i = 0;i < info.width*info.height;i++) {
push32(rect, 0x11223300);
}
push32(rect, 0xa0a0a0a0);
for (let i = 0;i < info.width*info.height/2;i++) {
push32(expected, 0x332211ff);
push32(expected, 0x33221100);
}
expected = new Uint8Array(expected);
send_fbu_msg([info], [rect], client);
expect(client._cursor.change).to.have.been.calledOnce;
expect(client._cursor.change).to.have.been.calledWith(expected, 5, 7, 4, 4);
});
it('should handle an empty cursor', function () {
const info = { x: 0, y: 0,
width: 0, height: 0,
encoding: -239};
const rect = [];
send_fbu_msg([info], [rect], client);
expect(client._cursor.change).to.have.been.calledOnce;
expect(client._cursor.change).to.have.been.calledWith(new Uint8Array, 0, 0, 0, 0);
});
it('should handle a transparent cursor', function () {
const info = { x: 5, y: 7,
width: 4, height: 4,
encoding: -239};
let rect = [];
let expected = [];
for (let i = 0;i < info.width*info.height;i++) {
push32(rect, 0x11223300);
}
push32(rect, 0x00000000);
for (let i = 0;i < info.width*info.height;i++) {
push32(expected, 0x33221100);
}
expected = new Uint8Array(expected);
send_fbu_msg([info], [rect], client);
expect(client._cursor.change).to.have.been.calledOnce;
expect(client._cursor.change).to.have.been.calledWith(expected, 5, 7, 4, 4);
});
describe('dot for empty cursor', function () {
beforeEach(function () {
client.showDotCursor = true;
// Was called when we enabled dot cursor
client._cursor.change.reset();
});
it('should show a standard cursor', function () {
const info = { x: 5, y: 7,
width: 4, height: 4,
encoding: -239};
let rect = [];
let expected = [];
for (let i = 0;i < info.width*info.height;i++) {
push32(rect, 0x11223300);
}
push32(rect, 0xa0a0a0a0);
for (let i = 0;i < info.width*info.height/2;i++) {
push32(expected, 0x332211ff);
push32(expected, 0x33221100);
}
expected = new Uint8Array(expected);
send_fbu_msg([info], [rect], client);
expect(client._cursor.change).to.have.been.calledOnce;
expect(client._cursor.change).to.have.been.calledWith(expected, 5, 7, 4, 4);
});
it('should handle an empty cursor', function () {
const info = { x: 0, y: 0,
width: 0, height: 0,
encoding: -239};
const rect = [];
const dot = RFB.cursors.dot;
send_fbu_msg([info], [rect], client);
expect(client._cursor.change).to.have.been.calledOnce;
expect(client._cursor.change).to.have.been.calledWith(dot.rgbaPixels,
dot.hotx,
dot.hoty,
dot.w,
dot.h);
});
it('should handle a transparent cursor', function () {
const info = { x: 5, y: 7,
width: 4, height: 4,
encoding: -239};
let rect = [];
const dot = RFB.cursors.dot;
for (let i = 0;i < info.width*info.height;i++) {
push32(rect, 0x11223300);
}
push32(rect, 0x00000000);
send_fbu_msg([info], [rect], client);
expect(client._cursor.change).to.have.been.calledOnce;
expect(client._cursor.change).to.have.been.calledWith(dot.rgbaPixels,
dot.hotx,
dot.hoty,
dot.w,
dot.h);
});
});
});
describe('the VMware Cursor pseudo-encoding handler', function () {
beforeEach(function () {
sinon.spy(client._cursor, 'change');
});
afterEach(function () {
client._cursor.change.resetHistory();
});
it('should handle the VMware cursor pseudo-encoding', function () {
let data = [0x00, 0x00, 0xff, 0,
0x00, 0xff, 0x00, 0,
0x00, 0xff, 0x00, 0,
0x00, 0x00, 0xff, 0];
let rect = [];
push8(rect, 0);
push8(rect, 0);
//AND-mask
for (let i = 0; i < data.length; i++) {
push8(rect, data[i]);
}
//XOR-mask
for (let i = 0; i < data.length; i++) {
push8(rect, data[i]);
}
send_fbu_msg([{ x: 0, y: 0, width: 2, height: 2,
encoding: 0x574d5664}],
[rect], client);
expect(client._FBU.rects).to.equal(0);
});
it('should handle insufficient cursor pixel data', function () {
// Specified 14x23 pixels for the cursor,
// but only send 2x2 pixels worth of data
let w = 14;
let h = 23;
let data = [0x00, 0x00, 0xff, 0,
0x00, 0xff, 0x00, 0];
let rect = [];
push8(rect, 0);
push8(rect, 0);
//AND-mask
for (let i = 0; i < data.length; i++) {
push8(rect, data[i]);
}
//XOR-mask
for (let i = 0; i < data.length; i++) {
push8(rect, data[i]);
}
send_fbu_msg([{ x: 0, y: 0, width: w, height: h,
encoding: 0x574d5664}],
[rect], client);
// expect one FBU to remain unhandled
expect(client._FBU.rects).to.equal(1);
});
it('should update the cursor when type is classic', function () {
let and_mask =
[0xff, 0xff, 0xff, 0xff, //Transparent
0xff, 0xff, 0xff, 0xff, //Transparent
0x00, 0x00, 0x00, 0x00, //Opaque
0xff, 0xff, 0xff, 0xff]; //Inverted
let xor_mask =
[0x00, 0x00, 0x00, 0x00, //Transparent
0x00, 0x00, 0x00, 0x00, //Transparent
0x11, 0x22, 0x33, 0x44, //Opaque
0xff, 0xff, 0xff, 0x44]; //Inverted
let rect = [];
push8(rect, 0); //cursor_type
push8(rect, 0); //padding
let hotx = 0;
let hoty = 0;
let w = 2;
let h = 2;
//AND-mask
for (let i = 0; i < and_mask.length; i++) {
push8(rect, and_mask[i]);
}
//XOR-mask
for (let i = 0; i < xor_mask.length; i++) {
push8(rect, xor_mask[i]);
}
let expected_rgba = [0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00,
0x33, 0x22, 0x11, 0xff,
0x00, 0x00, 0x00, 0xff];
send_fbu_msg([{ x: hotx, y: hoty,
width: w, height: h,
encoding: 0x574d5664}],
[rect], client);
expect(client._cursor.change)
.to.have.been.calledOnce;
expect(client._cursor.change)
.to.have.been.calledWith(expected_rgba,
hotx, hoty,
w, h);
});
it('should update the cursor when type is alpha', function () {
let data = [0xee, 0x55, 0xff, 0x00, // rgba
0x00, 0xff, 0x00, 0xff,
0x00, 0xff, 0x00, 0x22,
0x00, 0xff, 0x00, 0x22,
0x00, 0xff, 0x00, 0x22,
0x00, 0x00, 0xff, 0xee];
let rect = [];
push8(rect, 1); //cursor_type
push8(rect, 0); //padding
let hotx = 0;
let hoty = 0;
let w = 3;
let h = 2;
for (let i = 0; i < data.length; i++) {
push8(rect, data[i]);
}
let expected_rgba = [0xee, 0x55, 0xff, 0x00,
0x00, 0xff, 0x00, 0xff,
0x00, 0xff, 0x00, 0x22,
0x00, 0xff, 0x00, 0x22,
0x00, 0xff, 0x00, 0x22,
0x00, 0x00, 0xff, 0xee];
send_fbu_msg([{ x: hotx, y: hoty,
width: w, height: h,
encoding: 0x574d5664}],
[rect], client);
expect(client._cursor.change)
.to.have.been.calledOnce;
expect(client._cursor.change)
.to.have.been.calledWith(expected_rgba,
hotx, hoty,
w, h);
});
it('should not update cursor when incorrect cursor type given', function () {
let rect = [];
push8(rect, 3); // invalid cursor type
push8(rect, 0); // padding
client._cursor.change.resetHistory();
send_fbu_msg([{ x: 0, y: 0, width: 2, height: 2,
encoding: 0x574d5664}],
[rect], client);
expect(client._cursor.change)
.to.not.have.been.called;
});
});
it('should handle the last_rect pseudo-encoding', function () {
send_fbu_msg([{ x: 0, y: 0, width: 0, height: 0, encoding: -224}], [[]], client, 100);
expect(client._FBU.rects).to.equal(0);
});
it('should handle the DesktopName pseudo-encoding', function () {
let data = [];
push32(data, 13);
pushString(data, "som€ nam€");
const spy = sinon.spy();
client.addEventListener("desktopname", spy);
send_fbu_msg([{ x: 0, y: 0, width: 0, height: 0, encoding: -307 }], [data], client);
expect(client._fb_name).to.equal('som€ nam€');
expect(spy).to.have.been.calledOnce;
expect(spy.args[0][0].detail.name).to.equal('som€ nam€');
});
});
});
describe('XVP Message Handling', function () {
it('should set the XVP version and fire the callback with the version on XVP_INIT', function () {
const spy = sinon.spy();
client.addEventListener("capabilities", spy);
client._sock._websocket._receive_data(new Uint8Array([250, 0, 10, 1]));
expect(client._rfb_xvp_ver).to.equal(10);
expect(spy).to.have.been.calledOnce;
expect(spy.args[0][0].detail.capabilities.power).to.be.true;
expect(client.capabilities.power).to.be.true;
});
it('should fail on unknown XVP message types', function () {
sinon.spy(client, "_fail");
client._sock._websocket._receive_data(new Uint8Array([250, 0, 10, 237]));
expect(client._fail).to.have.been.calledOnce;
});
});
it('should fire the clipboard callback with the retrieved text on ServerCutText', function () {
const expected_str = 'cheese!';
const data = [3, 0, 0, 0];
push32(data, expected_str.length);
for (let i = 0; i < expected_str.length; i++) { data.push(expected_str.charCodeAt(i)); }
const spy = sinon.spy();
client.addEventListener("clipboard", spy);
client._sock._websocket._receive_data(new Uint8Array(data));
expect(spy).to.have.been.calledOnce;
expect(spy.args[0][0].detail.text).to.equal(expected_str);
});
it('should fire the bell callback on Bell', function () {
const spy = sinon.spy();
client.addEventListener("bell", spy);
client._sock._websocket._receive_data(new Uint8Array([2]));
expect(spy).to.have.been.calledOnce;
});
it('should respond correctly to ServerFence', function () {
const expected_msg = {_sQ: new Uint8Array(16), _sQlen: 0, flush: () => {}};
const incoming_msg = {_sQ: new Uint8Array(16), _sQlen: 0, flush: () => {}};
const payload = "foo\x00ab9";
// ClientFence and ServerFence are identical in structure
RFB.messages.clientFence(expected_msg, (1<<0) | (1<<1), payload);
RFB.messages.clientFence(incoming_msg, 0xffffffff, payload);
client._sock._websocket._receive_data(incoming_msg._sQ);
expect(client._sock).to.have.sent(expected_msg._sQ);
expected_msg._sQlen = 0;
incoming_msg._sQlen = 0;
RFB.messages.clientFence(expected_msg, (1<<0), payload);
RFB.messages.clientFence(incoming_msg, (1<<0) | (1<<31), payload);
client._sock._websocket._receive_data(incoming_msg._sQ);
expect(client._sock).to.have.sent(expected_msg._sQ);
});
it('should enable continuous updates on first EndOfContinousUpdates', function () {
const expected_msg = {_sQ: new Uint8Array(10), _sQlen: 0, flush: () => {}};
RFB.messages.enableContinuousUpdates(expected_msg, true, 0, 0, 640, 20);
expect(client._enabledContinuousUpdates).to.be.false;
client._sock._websocket._receive_data(new Uint8Array([150]));
expect(client._enabledContinuousUpdates).to.be.true;
expect(client._sock).to.have.sent(expected_msg._sQ);
});
it('should disable continuous updates on subsequent EndOfContinousUpdates', function () {
client._enabledContinuousUpdates = true;
client._supportsContinuousUpdates = true;
client._sock._websocket._receive_data(new Uint8Array([150]));
expect(client._enabledContinuousUpdates).to.be.false;
});
it('should update continuous updates on resize', function () {
const expected_msg = {_sQ: new Uint8Array(10), _sQlen: 0, flush: () => {}};
RFB.messages.enableContinuousUpdates(expected_msg, true, 0, 0, 90, 700);
client._resize(450, 160);
expect(client._sock._websocket._get_sent_data()).to.have.length(0);
client._enabledContinuousUpdates = true;
client._resize(90, 700);
expect(client._sock).to.have.sent(expected_msg._sQ);
});
it('should fail on an unknown message type', function () {
sinon.spy(client, "_fail");
client._sock._websocket._receive_data(new Uint8Array([87]));
expect(client._fail).to.have.been.calledOnce;
});
});
describe('Asynchronous Events', function () {
let client;
beforeEach(function () {
client = make_rfb();
});
describe('Mouse event handlers', function () {
it('should not send button messages in view-only mode', function () {
client._viewOnly = true;
sinon.spy(client._sock, 'flush');
client._handleMouseButton(0, 0, 1, 0x001);
expect(client._sock.flush).to.not.have.been.called;
});
it('should not send movement messages in view-only mode', function () {
client._viewOnly = true;
sinon.spy(client._sock, 'flush');
client._handleMouseMove(0, 0);
expect(client._sock.flush).to.not.have.been.called;
});
it('should send a pointer event on mouse button presses', function () {
client._handleMouseButton(10, 12, 1, 0x001);
const pointer_msg = {_sQ: new Uint8Array(6), _sQlen: 0, flush: () => {}};
RFB.messages.pointerEvent(pointer_msg, 10, 12, 0x001);
expect(client._sock).to.have.sent(pointer_msg._sQ);
});
it('should send a mask of 1 on mousedown', function () {
client._handleMouseButton(10, 12, 1, 0x001);
const pointer_msg = {_sQ: new Uint8Array(6), _sQlen: 0, flush: () => {}};
RFB.messages.pointerEvent(pointer_msg, 10, 12, 0x001);
expect(client._sock).to.have.sent(pointer_msg._sQ);
});
it('should send a mask of 0 on mouseup', function () {
client._mouse_buttonMask = 0x001;
client._handleMouseButton(10, 12, 0, 0x001);
const pointer_msg = {_sQ: new Uint8Array(6), _sQlen: 0, flush: () => {}};
RFB.messages.pointerEvent(pointer_msg, 10, 12, 0x000);
expect(client._sock).to.have.sent(pointer_msg._sQ);
});
it('should send a pointer event on mouse movement', function () {
client._handleMouseMove(10, 12);
const pointer_msg = {_sQ: new Uint8Array(6), _sQlen: 0, flush: () => {}};
RFB.messages.pointerEvent(pointer_msg, 10, 12, 0x000);
expect(client._sock).to.have.sent(pointer_msg._sQ);
});
it('should set the button mask so that future mouse movements use it', function () {
client._handleMouseButton(10, 12, 1, 0x010);
client._handleMouseMove(13, 9);
const pointer_msg = {_sQ: new Uint8Array(12), _sQlen: 0, flush: () => {}};
RFB.messages.pointerEvent(pointer_msg, 10, 12, 0x010);
RFB.messages.pointerEvent(pointer_msg, 13, 9, 0x010);
expect(client._sock).to.have.sent(pointer_msg._sQ);
});
});
describe('Keyboard Event Handlers', function () {
it('should send a key message on a key press', function () {
client._handleKeyEvent(0x41, 'KeyA', true);
const key_msg = {_sQ: new Uint8Array(8), _sQlen: 0, flush: () => {}};
RFB.messages.keyEvent(key_msg, 0x41, 1);
expect(client._sock).to.have.sent(key_msg._sQ);
});
it('should not send messages in view-only mode', function () {
client._viewOnly = true;
sinon.spy(client._sock, 'flush');
client._handleKeyEvent('a', 'KeyA', true);
expect(client._sock.flush).to.not.have.been.called;
});
});
describe('WebSocket event handlers', function () {
// message events
it('should do nothing if we receive an empty message and have nothing in the queue', function () {
client._normal_msg = sinon.spy();
client._sock._websocket._receive_data(new Uint8Array([]));
expect(client._normal_msg).to.not.have.been.called;
});
it('should handle a message in the connected state as a normal message', function () {
client._normal_msg = sinon.spy();
client._sock._websocket._receive_data(new Uint8Array([1, 2, 3]));
expect(client._normal_msg).to.have.been.called;
});
it('should handle a message in any non-disconnected/failed state like an init message', function () {
client._rfb_connection_state = 'connecting';
client._rfb_init_state = 'ProtocolVersion';
client._init_msg = sinon.spy();
client._sock._websocket._receive_data(new Uint8Array([1, 2, 3]));
expect(client._init_msg).to.have.been.called;
});
it('should process all normal messages directly', function () {
const spy = sinon.spy();
client.addEventListener("bell", spy);
client._sock._websocket._receive_data(new Uint8Array([0x02, 0x02]));
expect(spy).to.have.been.calledTwice;
});
// open events
it('should update the state to ProtocolVersion on open (if the state is "connecting")', function () {
client = new RFB(document.createElement('div'), 'wss://host:8675');
this.clock.tick();
client._sock._websocket._open();
expect(client._rfb_init_state).to.equal('ProtocolVersion');
});
it('should fail if we are not currently ready to connect and we get an "open" event', function () {
sinon.spy(client, "_fail");
client._rfb_connection_state = 'connected';
client._sock._websocket._open();
expect(client._fail).to.have.been.calledOnce;
});
// close events
it('should transition to "disconnected" from "disconnecting" on a close event', function () {
const real = client._sock._websocket.close;
client._sock._websocket.close = () => {};
client.disconnect();
expect(client._rfb_connection_state).to.equal('disconnecting');
client._sock._websocket.close = real;
client._sock._websocket.close();
expect(client._rfb_connection_state).to.equal('disconnected');
});
it('should fail if we get a close event while connecting', function () {
sinon.spy(client, "_fail");
client._rfb_connection_state = 'connecting';
client._sock._websocket.close();
expect(client._fail).to.have.been.calledOnce;
});
it('should unregister close event handler', function () {
sinon.spy(client._sock, 'off');
client.disconnect();
client._sock._websocket.close();
expect(client._sock.off).to.have.been.calledWith('close');
});
// error events do nothing
});
});
});
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