// requires local modules: util, websock, rfb, keyboard, keysym, keysymdef, input, inflator, des, display // requires test modules: fake.websocket, assertions /* jshint expr: true */ var assert = chai.assert; var expect = chai.expect; function make_rfb (extra_opts) { if (!extra_opts) { extra_opts = {}; } extra_opts.target = extra_opts.target || document.createElement('canvas'); return new RFB(extra_opts); } describe('Remote Frame Buffer Protocol Client', function() { "use strict"; before(FakeWebSocket.replace); after(FakeWebSocket.restore); before(function () { this.clock = sinon.useFakeTimers(); // Use a single set of buffers instead of reallocating to // speed up tests var sock = new Websock(); var _sQ = new Uint8Array(sock._sQbufferSize); var 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(); }); describe('Public API Basic Behavior', function () { var client; beforeEach(function () { client = make_rfb(); }); describe('#connect', function () { beforeEach(function () { client._updateState = sinon.spy(); }); it('should set the current state to "connect"', function () { client.connect('host', 8675); expect(client._updateState).to.have.been.calledOnce; expect(client._updateState).to.have.been.calledWith('connect'); }); it('should fail if we are missing a host', function () { sinon.spy(client, '_fail'); client.connect(undefined, 8675); expect(client._fail).to.have.been.calledOnce; }); it('should fail if we are missing a port', function () { sinon.spy(client, '_fail'); client.connect('abc'); expect(client._fail).to.have.been.calledOnce; }); it('should not update the state if we are missing a host or port', function () { sinon.spy(client, '_fail'); client.connect('abc'); expect(client._fail).to.have.been.calledOnce; expect(client._updateState).to.have.been.calledOnce; expect(client._updateState).to.have.been.calledWith('failed'); }); }); describe('#disconnect', function () { beforeEach(function () { client._updateState = sinon.spy(); }); it('should set the current state to "disconnect"', function () { client.disconnect(); expect(client._updateState).to.have.been.calledOnce; expect(client._updateState).to.have.been.calledWith('disconnect'); }); 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('#sendPassword', function () { beforeEach(function () { this.clock = sinon.useFakeTimers(); }); afterEach(function () { this.clock.restore(); }); it('should set the state to "Authentication"', function () { client._rfb_state = "blah"; client.sendPassword('pass'); expect(client._rfb_state).to.equal('Authentication'); }); it('should call init_msg "soon"', function () { client._init_msg = sinon.spy(); client.sendPassword('pass'); this.clock.tick(5); expect(client._init_msg).to.have.been.calledOnce; }); }); describe('#sendCtrlAlDel', function () { beforeEach(function () { client._sock = new Websock(); client._sock.open('ws://', 'binary'); client._sock._websocket._open(); sinon.spy(client._sock, 'flush'); client._rfb_state = "normal"; client._view_only = false; }); it('should sent ctrl[down]-alt[down]-del[down] then del[up]-alt[up]-ctrl[up]', function () { var expected = {_sQ: new Uint8Array(48), _sQlen: 0, flush: function () {}}; 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 () { client._rfb_state = "broken"; 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 () { client._view_only = true; client.sendCtrlAltDel(); expect(client._sock.flush).to.not.have.been.called; }); }); describe('#sendKey', function () { beforeEach(function () { client._sock = new Websock(); client._sock.open('ws://', 'binary'); client._sock._websocket._open(); sinon.spy(client._sock, 'flush'); client._rfb_state = "normal"; client._view_only = false; }); it('should send a single key with the given code and state (down = true)', function () { var expected = {_sQ: new Uint8Array(8), _sQlen: 0, flush: function () {}}; RFB.messages.keyEvent(expected, 123, 1); client.sendKey(123, 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 () { var expected = {_sQ: new Uint8Array(16), _sQlen: 0, flush: function () {}}; RFB.messages.keyEvent(expected, 123, 1); RFB.messages.keyEvent(expected, 123, 0); client.sendKey(123); expect(client._sock).to.have.sent(expected._sQ); }); it('should not send the key if we are not in a normal state', function () { client._rfb_state = "broken"; client.sendKey(123); expect(client._sock.flush).to.not.have.been.called; }); it('should not send the key if we are set as view_only', function () { client._view_only = true; client.sendKey(123); expect(client._sock.flush).to.not.have.been.called; }); }); describe('#clipboardPasteFrom', function () { beforeEach(function () { client._sock = new Websock(); client._sock.open('ws://', 'binary'); client._sock._websocket._open(); sinon.spy(client._sock, 'flush'); client._rfb_state = "normal"; client._view_only = false; }); it('should send the given text in a paste event', function () { var expected = {_sQ: new Uint8Array(11), _sQlen: 0, flush: function () {}}; RFB.messages.clientCutText(expected, 'abc'); client.clipboardPasteFrom('abc'); expect(client._sock).to.have.sent(expected._sQ); }); it('should not send the text if we are not in a normal state', function () { client._rfb_state = "broken"; client.clipboardPasteFrom('abc'); expect(client._sock.flush).to.not.have.been.called; }); }); describe("#requestDesktopSize", function () { beforeEach(function() { client._sock = new Websock(); client._sock.open('ws://', 'binary'); client._sock._websocket._open(); sinon.spy(client._sock, 'flush'); client._rfb_state = "normal"; client._view_only = false; client._supportsSetDesktopSize = true; }); it('should send the request with the given width and height', function () { var expected = [251]; expected.push8(0); // padding expected.push16(1); // width expected.push16(2); // height expected.push8(1); // number-of-screens expected.push8(0); // padding before screen array expected.push32(0); // id expected.push16(0); // x-position expected.push16(0); // y-position expected.push16(1); // width expected.push16(2); // height expected.push32(0); // flags client.requestDesktopSize(1, 2); expect(client._sock).to.have.sent(new Uint8Array(expected)); }); it('should not send the request if the client has not recieved a ExtendedDesktopSize rectangle', function () { client._supportsSetDesktopSize = false; client.requestDesktopSize(1,2); expect(client._sock.flush).to.not.have.been.called; }); it('should not send the request if we are not in a normal state', function () { client._rfb_state = "broken"; client.requestDesktopSize(1,2); expect(client._sock.flush).to.not.have.been.called; }); }); describe("XVP operations", function () { beforeEach(function () { client._sock = new Websock(); client._sock.open('ws://', 'binary'); client._sock._websocket._open(); sinon.spy(client._sock, 'flush'); client._rfb_state = "normal"; client._view_only = false; client._rfb_xvp_ver = 1; }); it('should send the shutdown signal on #xvpShutdown', function () { client.xvpShutdown(); expect(client._sock).to.have.sent(new Uint8Array([0xFA, 0x00, 0x01, 0x02])); }); it('should send the reboot signal on #xvpReboot', function () { client.xvpReboot(); expect(client._sock).to.have.sent(new Uint8Array([0xFA, 0x00, 0x01, 0x03])); }); it('should send the reset signal on #xvpReset', function () { client.xvpReset(); expect(client._sock).to.have.sent(new Uint8Array([0xFA, 0x00, 0x01, 0x04])); }); it('should support sending arbitrary XVP operations via #xvpOp', function () { client.xvpOp(1, 7); expect(client._sock).to.have.sent(new Uint8Array([0xFA, 0x00, 0x01, 0x07])); }); it('should not send XVP operations with higher versions than we support', function () { expect(client.xvpOp(2, 7)).to.be.false; expect(client._sock.flush).to.not.have.been.called; }); }); }); describe('Misc Internals', function () { describe('#_updateState', function () { var client; beforeEach(function () { this.clock = sinon.useFakeTimers(); client = make_rfb(); }); afterEach(function () { this.clock.restore(); }); it('should clear the disconnect timer if the state is not disconnect', function () { var spy = sinon.spy(); client._disconnTimer = setTimeout(spy, 50); client._updateState('normal'); this.clock.tick(51); expect(spy).to.not.have.been.called; expect(client._disconnTimer).to.be.null; }); }); }); describe('Page States', function () { describe('loaded', function () { var client; beforeEach(function () { client = make_rfb(); }); it('should close any open WebSocket connection', function () { sinon.spy(client._sock, 'close'); client._updateState('loaded'); expect(client._sock.close).to.have.been.calledOnce; }); }); describe('disconnected', function () { var client; beforeEach(function () { client = make_rfb(); }); it('should close any open WebSocket connection', function () { sinon.spy(client._sock, 'close'); client._updateState('disconnected'); expect(client._sock.close).to.have.been.calledOnce; }); }); describe('connect', function () { var client; beforeEach(function () { client = make_rfb(); }); it('should reset the variable states', function () { sinon.spy(client, '_init_vars'); client._updateState('connect'); expect(client._init_vars).to.have.been.calledOnce; }); it('should actually connect to the websocket', function () { sinon.spy(client._sock, 'open'); client._updateState('connect'); expect(client._sock.open).to.have.been.calledOnce; }); it('should use wss:// to connect if encryption is enabled', function () { sinon.spy(client._sock, 'open'); client.set_encrypt(true); client._updateState('connect'); expect(client._sock.open.args[0][0]).to.contain('wss://'); }); it('should use ws:// to connect if encryption is not enabled', function () { sinon.spy(client._sock, 'open'); client.set_encrypt(true); client._updateState('connect'); expect(client._sock.open.args[0][0]).to.contain('wss://'); }); it('should use a uri with the host, port, and path specified to connect', function () { sinon.spy(client._sock, 'open'); client.set_encrypt(false); client._rfb_host = 'HOST'; client._rfb_port = 8675; client._rfb_path = 'PATH'; client._updateState('connect'); expect(client._sock.open).to.have.been.calledWith('ws://HOST:8675/PATH'); }); it('should attempt to close the websocket before we open an new one', function () { sinon.spy(client._sock, 'close'); client._updateState('connect'); expect(client._sock.close).to.have.been.calledOnce; }); }); describe('disconnect', function () { var client; beforeEach(function () { this.clock = sinon.useFakeTimers(); client = make_rfb(); client.connect('host', 8675); }); afterEach(function () { this.clock.restore(); }); it('should fail if we do not call Websock.onclose within the disconnection timeout', function () { client._sock._websocket.close = function () {}; // explicitly don't call onclose client._updateState('disconnect'); this.clock.tick(client.get_disconnectTimeout() * 1000); expect(client._rfb_state).to.equal('failed'); }); it('should not fail if Websock.onclose gets called within the disconnection timeout', function () { client._updateState('disconnect'); this.clock.tick(client.get_disconnectTimeout() * 500); client._sock._websocket.close(); this.clock.tick(client.get_disconnectTimeout() * 500 + 1); expect(client._rfb_state).to.equal('disconnected'); }); it('should close the WebSocket connection', function () { sinon.spy(client._sock, 'close'); client._updateState('disconnect'); expect(client._sock.close).to.have.been.calledTwice; // once on loaded, once on disconnect }); }); describe('failed', function () { var client; beforeEach(function () { this.clock = sinon.useFakeTimers(); client = make_rfb(); client.connect('host', 8675); }); afterEach(function () { this.clock.restore(); }); it('should close the WebSocket connection', function () { sinon.spy(client._sock, 'close'); client._updateState('failed'); expect(client._sock.close).to.have.been.called; }); it('should transition to disconnected but stay in failed state', function () { client.set_onUpdateState(sinon.spy()); client._updateState('failed'); this.clock.tick(50); expect(client._rfb_state).to.equal('failed'); var onUpdateState = client.get_onUpdateState(); expect(onUpdateState).to.have.been.called; // it should be specifically the last call expect(onUpdateState.args[onUpdateState.args.length - 1][1]).to.equal('disconnected'); expect(onUpdateState.args[onUpdateState.args.length - 1][2]).to.equal('failed'); }); }); describe('fatal', function () { var client; beforeEach(function () { client = make_rfb(); }); it('should close any open WebSocket connection', function () { sinon.spy(client._sock, 'close'); client._updateState('fatal'); expect(client._sock.close).to.have.been.calledOnce; }); }); // NB(directxman12): Normal does *nothing* in updateState }); describe('Protocol Initialization States', function () { describe('ProtocolVersion', function () { beforeEach(function () { this.clock = sinon.useFakeTimers(); }); afterEach(function () { this.clock.restore(); }); function send_ver (ver, client) { var arr = new Uint8Array(12); for (var 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 () { var client; beforeEach(function () { client = make_rfb(); client.connect('host', 8675); client._sock._websocket._open(); }); it('should interpret version 000.000 as a repeater', function () { client._repeaterID = '\x01\x02\x03\x04\x05'; send_ver('000.000', client); expect(client._rfb_version).to.equal(0); var sent_data = client._sock._websocket._get_sent_data(); expect(new Uint8Array(sent_data.buffer, 0, 5)).to.array.equal(new Uint8Array([1, 2, 3, 4, 5])); }); 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 fail on an invalid version', function () { send_ver('002.000', client); expect(client._rfb_state).to.equal('failed'); }); }); var client; beforeEach(function () { client = make_rfb(); client.connect('host', 8675); client._sock._websocket._open(); }); it('should handle two step repeater negotiation', function () { client._repeaterID = '\x01\x02\x03\x04\x05'; send_ver('000.000', client); expect(client._rfb_version).to.equal(0); var sent_data = client._sock._websocket._get_sent_data(); expect(new Uint8Array(sent_data.buffer, 0, 5)).to.array.equal(new Uint8Array([1, 2, 3, 4, 5])); expect(sent_data).to.have.length(250); send_ver('003.008', client); expect(client._rfb_version).to.equal(3.8); }); it('should send back the interpreted version', function () { send_ver('004.000', client); var expected_str = 'RFB 003.008\n'; var expected = []; for (var 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_state).to.equal('Security'); }); }); describe('Security', function () { var client; beforeEach(function () { client = make_rfb(); client.connect('host', 8675); client._sock._websocket._open(); client._rfb_state = 'Security'; }); it('should simply receive the auth scheme when for versions < 3.7', function () { client._rfb_version = 3.6; var auth_scheme_raw = [1, 2, 3, 4]; var 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(auth_scheme_raw); expect(client._rfb_auth_scheme).to.equal(auth_scheme); }); it('should choose for the most prefered scheme possible for versions >= 3.7', function () { client._rfb_version = 3.7; var auth_schemes = [2, 1, 2]; client._sock._websocket._receive_data(auth_schemes); expect(client._rfb_auth_scheme).to.equal(2); expect(client._sock).to.have.sent(new Uint8Array([2])); }); it('should fail if there are no supported schemes for versions >= 3.7', function () { client._rfb_version = 3.7; var auth_schemes = [1, 32]; client._sock._websocket._receive_data(auth_schemes); expect(client._rfb_state).to.equal('failed'); }); it('should fail with the appropriate message if no types are sent for versions >= 3.7', function () { client._rfb_version = 3.7; var failure_data = [0, 0, 0, 0, 6, 119, 104, 111, 111, 112, 115]; sinon.spy(client, '_fail'); client._sock._websocket._receive_data(failure_data); expect(client._fail).to.have.been.calledTwice; expect(client._fail).to.have.been.calledWith('Security failure: whoops'); }); it('should transition to the Authentication state and continue on successful negotiation', function () { client._rfb_version = 3.7; var auth_schemes = [1, 1]; client._negotiate_authentication = sinon.spy(); client._sock._websocket._receive_data(auth_schemes); expect(client._rfb_state).to.equal('Authentication'); expect(client._negotiate_authentication).to.have.been.calledOnce; }); }); describe('Authentication', function () { var client; beforeEach(function () { client = make_rfb(); client.connect('host', 8675); client._sock._websocket._open(); client._rfb_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; var err_msg = "Whoopsies"; var data = [0, 0, 0, 0]; var err_len = err_msg.length; data.push32(err_len); for (var 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._rfb_state).to.equal('failed'); expect(client._fail).to.have.been.calledWith('Auth failure: 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_state).to.equal('SecurityResult'); }); it('should transition straight to ClientInitialisation on "no auth" for versions < 3.8', function () { client._rfb_version = 3.7; sinon.spy(client, '_updateState'); send_security(1, client); expect(client._updateState).to.have.been.calledWith('ClientInitialisation'); expect(client._rfb_state).to.equal('ServerInitialisation'); }); it('should fail on an unknown auth scheme', function () { client._rfb_version = 3.8; send_security(57, client); expect(client._rfb_state).to.equal('failed'); }); describe('VNC Authentication (type 2) Handler', function () { var client; beforeEach(function () { client = make_rfb(); client.connect('host', 8675); client._sock._websocket._open(); client._rfb_state = 'Security'; client._rfb_version = 3.8; }); it('should transition to the "password" state if missing a password', function () { send_security(2, client); expect(client._rfb_state).to.equal('password'); }); it('should encrypt the password with DES and then send it back', function () { client._rfb_password = 'passwd'; send_security(2, client); client._sock._websocket._get_sent_data(); // skip the choice of auth reply var challenge = []; for (var i = 0; i < 16; i++) { challenge[i] = i; } client._sock._websocket._receive_data(new Uint8Array(challenge)); var 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_password = 'passwd'; send_security(2, client); var challenge = []; for (var i = 0; i < 16; i++) { challenge[i] = i; } client._sock._websocket._receive_data(new Uint8Array(challenge)); expect(client._rfb_state).to.equal('SecurityResult'); }); }); describe('XVP Authentication (type 22) Handler', function () { var client; beforeEach(function () { client = make_rfb(); client.connect('host', 8675); client._sock._websocket._open(); client._rfb_state = 'Security'; client._rfb_version = 3.8; }); it('should fall through to standard VNC authentication upon completion', function () { client.set_xvp_password_sep('#'); client._rfb_password = 'user#target#password'; client._negotiate_std_vnc_auth = sinon.spy(); send_security(22, client); expect(client._negotiate_std_vnc_auth).to.have.been.calledOnce; }); it('should transition to the "password" state if the passwords is missing', function() { send_security(22, client); expect(client._rfb_state).to.equal('password'); }); it('should transition to the "password" state if the passwords is improperly formatted', function() { client._rfb_password = 'user@target'; send_security(22, client); expect(client._rfb_state).to.equal('password'); }); it('should split the password, send the first two parts, and pass on the last part', function () { client.set_xvp_password_sep('#'); client._rfb_password = 'user#target#password'; client._negotiate_std_vnc_auth = sinon.spy(); send_security(22, client); expect(client._rfb_password).to.equal('password'); var expected = [22, 4, 6]; // auth selection, len user, len target for (var 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 () { var client; beforeEach(function () { client = make_rfb(); client.connect('host', 8675); client._sock._websocket._open(); client._rfb_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) { var pairs_len = pairs.length; var data = []; data.push32(pairs_len); for (var i = 0; i < pairs_len; i++) { data.push32(pairs[i][0]); var j; for (j = 0; j < 4; j++) { data.push(pairs[i][1].charCodeAt(j)); } for (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 () { send_num_str_pairs([[123, 'OTHR', 'SOMETHNG']], client); expect(client._rfb_state).to.equal('failed'); }); 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 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_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_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 () { client._rfb_tightvnc = true; send_num_str_pairs([[23, 'stdv', 'badval__']], client); expect(client._rfb_state).to.equal('failed'); }); }); }); describe('SecurityResult', function () { var client; beforeEach(function () { client = make_rfb(); client.connect('host', 8675); client._sock._websocket._open(); client._rfb_state = 'SecurityResult'; }); it('should fall through to ClientInitialisation on a response code of 0', function () { client._updateState = sinon.spy(); client._sock._websocket._receive_data(new Uint8Array([0, 0, 0, 0])); expect(client._updateState).to.have.been.calledOnce; expect(client._updateState).to.have.been.calledWith('ClientInitialisation'); }); 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'); var 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._rfb_state).to.equal('failed'); expect(client._fail).to.have.been.calledWith('whoops'); }); it('should fail on an error code of 1 with a standard message for version < 3.8', function () { client._rfb_version = 3.7; client._sock._websocket._receive_data(new Uint8Array([0, 0, 0, 1])); expect(client._rfb_state).to.equal('failed'); }); }); describe('ClientInitialisation', function () { var client; beforeEach(function () { client = make_rfb(); client.connect('host', 8675); client._sock._websocket._open(); client._rfb_state = 'SecurityResult'; }); it('should transition to the ServerInitialisation state', function () { client._sock._websocket._receive_data(new Uint8Array([0, 0, 0, 0])); expect(client._rfb_state).to.equal('ServerInitialisation'); }); it('should send 1 if we are in shared mode', function () { client.set_shared(true); 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 () { client.set_shared(false); client._sock._websocket._receive_data(new Uint8Array([0, 0, 0, 0])); expect(client._sock).to.have.sent(new Uint8Array([0])); }); }); describe('ServerInitialisation', function () { var client; beforeEach(function () { client = make_rfb(); client.connect('host', 8675); client._sock._websocket._open(); client._rfb_state = 'ServerInitialisation'; }); function send_server_init(opts, client) { var 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 (var opt in opts) { full_opts[opt] = opts[opt]; } var data = []; data.push16(full_opts.width); data.push16(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); data.push16(full_opts.red_max); data.push16(full_opts.green_max); data.push16(full_opts.blue_max); data.push8(full_opts.red_shift); data.push8(full_opts.green_shift); data.push8(full_opts.blue_shift); // padding data.push8(0); data.push8(0); data.push8(0); client._sock._websocket._receive_data(new Uint8Array(data)); var name_data = []; name_data.push32(full_opts.name.length); for (var i = 0; i < full_opts.name.length; i++) { name_data.push(full_opts.name.charCodeAt(i)); } 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 () { client.set_onDesktopName(sinon.spy()); send_server_init({ name: 'some name' }, client); var spy = client.get_onDesktopName(); expect(client._fb_name).to.equal('some name'); expect(spy).to.have.been.calledOnce; expect(spy.args[0][1]).to.equal('some name'); }); 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); var tight_data = []; tight_data.push16(1); tight_data.push16(2); tight_data.push16(3); tight_data.push16(0); for (var i = 0; i < 16 + 32 + 48; i++) { tight_data.push(i); } client._sock._websocket._receive_data(tight_data); expect(client._rfb_state).to.equal('normal'); }); it('should set the true color mode on the display to the configuration variable', function () { client.set_true_color(false); sinon.spy(client._display, 'set_true_color'); send_server_init({ true_color: 1 }, client); expect(client._display.set_true_color).to.have.been.calledOnce; expect(client._display.set_true_color).to.have.been.calledWith(false); }); it('should call the resize callback and resize the display', function () { client.set_onFBResize(sinon.spy()); sinon.spy(client._display, 'resize'); send_server_init({ width: 27, height: 32 }, client); var spy = client.get_onFBResize(); expect(client._display.resize).to.have.been.calledOnce; expect(client._display.resize).to.have.been.calledWith(27, 32); expect(spy).to.have.been.calledOnce; expect(spy.args[0][1]).to.equal(27); expect(spy.args[0][2]).to.equal(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; }); it('should set the BPP and depth to 4 and 3 respectively if in true color mode', function () { client.set_true_color(true); send_server_init({}, client); expect(client._fb_Bpp).to.equal(4); expect(client._fb_depth).to.equal(3); }); it('should set the BPP and depth to 1 and 1 respectively if not in true color mode', function () { client.set_true_color(false); send_server_init({}, client); expect(client._fb_Bpp).to.equal(1); expect(client._fb_depth).to.equal(1); }); // TODO(directxman12): test the various options in this configuration matrix it('should reply with the pixel format, client encodings, and initial update request', function () { client.set_true_color(true); client.set_local_cursor(false); // we skip the cursor encoding var expected = {_sQ: new Uint8Array(34 + 4 * (client._encodings.length - 1)), _sQlen: 0, flush: function () {}}; RFB.messages.pixelFormat(expected, 4, 3, true); RFB.messages.clientEncodings(expected, client._encodings, false, true); RFB.messages.fbUpdateRequest(expected, false, 0, 0, 27, 32); send_server_init({ width: 27, height: 32 }, client); expect(client._sock).to.have.sent(expected._sQ); }); it('should transition to the "normal" state', function () { send_server_init({}, client); expect(client._rfb_state).to.equal('normal'); }); }); }); describe('Protocol Message Processing After Completing Initialization', function () { var client; beforeEach(function () { client = make_rfb(); client.connect('host', 8675); client._sock._websocket._open(); client._rfb_state = 'normal'; client._fb_name = 'some device'; client._fb_width = 640; client._fb_height = 20; }); describe('Framebuffer Update Handling', function () { var client; beforeEach(function () { client = make_rfb(); client.connect('host', 8675); client._sock._websocket._open(); client._rfb_state = 'normal'; client._fb_name = 'some device'; client._fb_width = 640; client._fb_height = 20; }); var 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 ]; var target_data; var 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 ]; var 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) { var data = []; if (!rect_cnt || rect_cnt > -1) { // header data.push(0); // msg type data.push(0); // padding data.push16(rect_cnt || rect_data.length); } for (var i = 0; i < rect_data.length; i++) { if (rect_info[i]) { data.push16(rect_info[i].x); data.push16(rect_info[i].y); data.push16(rect_info[i].width); data.push16(rect_info[i].height); data.push32(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 () { var expected_msg = {_sQ: new Uint8Array(10), _sQlen: 0, flush: function() {}}; RFB.messages.fbUpdateRequest(expected_msg, false, 0, 0, 240, 20); client._framebufferUpdate = function () { return 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 () { var expected_msg = {_sQ: new Uint8Array(10), _sQlen: 0, flush: function() {}}; RFB.messages.fbUpdateRequest(expected_msg, false, 0, 0, 240, 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 () { 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 send a request for both clean and dirty areas', function () { var expected_msg = {_sQ: new Uint8Array(20), _sQlen: 0, flush: function() {}}; var expected_cdr = { cleanBox: { x: 0, y: 0, w: 120, h: 20 }, dirtyBoxes: [ { x: 120, y: 0, w: 120, h: 20 } ] }; RFB.messages.fbUpdateRequest(expected_msg, true, 0, 0, 120, 20); RFB.messages.fbUpdateRequest(expected_msg, false, 120, 0, 120, 20); client._framebufferUpdate = function () { return true; }; client._display.getCleanDirtyReset = function () { return expected_cdr; }; client._sock._websocket._receive_data(new Uint8Array([0])); expect(client._sock).to.have.sent(expected_msg._sQ); }); it('should only request non-incremental rects in continuous updates mode', function () { var expected_msg = {_sQ: new Uint8Array(10), _sQlen: 0, flush: function() {}}; var expected_cdr = { cleanBox: { x: 0, y: 0, w: 120, h: 20 }, dirtyBoxes: [ { x: 120, y: 0, w: 120, h: 20 } ] }; RFB.messages.fbUpdateRequest(expected_msg, false, 120, 0, 120, 20); client._enabledContinuousUpdates = true; client._framebufferUpdate = function () { return true; }; client._display.getCleanDirtyReset = function () { return expected_cdr; }; client._sock._websocket._receive_data(new Uint8Array([0])); expect(client._sock).to.have.sent(expected_msg._sQ); }); it('should not send a request in continuous updates mode when clean', function () { var expected_cdr = { cleanBox: { x: 0, y: 0, w: 240, h: 20 }, dirtyBoxes: [] }; client._enabledContinuousUpdates = true; client._framebufferUpdate = function () { return true; }; client._display.getCleanDirtyReset = function () { return expected_cdr; }; client._sock._websocket._receive_data(new Uint8Array([0])); expect(client._sock._websocket._get_sent_data()).to.have.length(0); }); it('should parse out information from a header before any actual data comes in', function () { client.set_onFBUReceive(sinon.spy()); var rect_info = { x: 8, y: 11, width: 27, height: 32, encoding: 0x02, encodingName: 'RRE' }; send_fbu_msg([rect_info], [[]], client); var spy = client.get_onFBUReceive(); expect(spy).to.have.been.calledOnce; expect(spy).to.have.been.calledWith(sinon.match.any, rect_info); }); it('should fire onFBUComplete when the update is complete', function () { client.set_onFBUComplete(sinon.spy()); var rect_info = { x: 8, y: 11, width: 27, height: 32, encoding: -224, encodingName: 'last_rect' }; send_fbu_msg([rect_info], [[]], client); // last_rect var spy = client.get_onFBUComplete(); expect(spy).to.have.been.calledOnce; expect(spy).to.have.been.calledWith(sinon.match.any, rect_info); }); it('should not fire onFBUComplete if we have not finished processing the update', function () { client.set_onFBUComplete(sinon.spy()); var rect_info = { x: 8, y: 11, width: 27, height: 32, encoding: 0x00, encodingName: 'RAW' }; send_fbu_msg([rect_info], [[]], client); expect(client.get_onFBUComplete()).to.not.have.been.called; }); it('should call the appropriate encoding handler', function () { client._encHandlers[0x02] = sinon.spy(); var rect_info = { x: 8, y: 11, width: 27, height: 32, encoding: 0x02 }; send_fbu_msg([rect_info], [[]], client); expect(client._encHandlers[0x02]).to.have.been.calledOnce; }); it('should fail on an unsupported encoding', function () { client.set_onFBUReceive(sinon.spy()); var rect_info = { x: 8, y: 11, width: 27, height: 32, encoding: 234 }; send_fbu_msg([rect_info], [[]], client); expect(client._rfb_state).to.equal('failed'); }); 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); var initial_data = client._display._drawCtx.createImageData(4, 2); var initial_data_arr = target_data_check_arr.slice(0, 32); for (var i = 0; i < 32; i++) { initial_data.data[i] = initial_data_arr[i]; } client._display._drawCtx.putImageData(initial_data, 0, 0); var 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 }] var 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 () { var client; beforeEach(function () { client = make_rfb(); client.connect('host', 8675); client._sock._websocket._open(); client._rfb_state = 'normal'; client._fb_name = 'some device'; // a really small frame client._fb_width = 4; client._fb_height = 4; client._display._fb_width = 4; client._display._fb_height = 4; client._display._viewportLoc.w = 4; client._display._viewportLoc.h = 4; client._fb_Bpp = 4; }); it('should handle the RAW encoding', function () { var 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 var 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 COPYRECT encoding', function () { // seed some initial data to copy var initial_data = client._display._drawCtx.createImageData(4, 2); var initial_data_arr = target_data_check_arr.slice(0, 32); for (var i = 0; i < 32; i++) { initial_data.data[i] = initial_data_arr[i]; } client._display._drawCtx.putImageData(initial_data, 0, 0); var 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 }] var 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 () { var info = [{ x: 0, y: 0, width: 4, height: 4, encoding: 0x02 }]; var rect = []; rect.push32(2); // 2 subrects rect.push32(0xff00ff); // becomes 00ff00ff --> #00FF00 bg color rect.push(0xff); // becomes ff0000ff --> #0000FF color rect.push(0x00); rect.push(0x00); rect.push(0xff); rect.push16(0); // x: 0 rect.push16(0); // y: 0 rect.push16(2); // width: 2 rect.push16(2); // height: 2 rect.push(0xff); // becomes ff0000ff --> #0000FF color rect.push(0x00); rect.push(0x00); rect.push(0xff); rect.push16(2); // x: 2 rect.push16(2); // y: 2 rect.push16(2); // width: 2 rect.push16(2); // height: 2 send_fbu_msg(info, [rect], client); expect(client._display).to.have.displayed(target_data_check); }); describe('the HEXTILE encoding handler', function () { var client; beforeEach(function () { client = make_rfb(); client.connect('host', 8675); client._sock._websocket._open(); client._rfb_state = 'normal'; client._fb_name = 'some device'; // a really small frame client._fb_width = 4; client._fb_height = 4; client._display._fb_width = 4; client._display._fb_height = 4; client._display._viewportLoc.w = 4; client._display._viewportLoc.h = 4; client._fb_Bpp = 4; }); it('should handle a tile with fg, bg specified, normal subrects', function () { var info = [{ x: 0, y: 0, width: 4, height: 4, encoding: 0x05 }]; var rect = []; rect.push(0x02 | 0x04 | 0x08); // bg spec, fg spec, anysubrects rect.push32(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 () { var info = [{ x: 0, y: 0, width: 4, height: 4, encoding: 0x05 }]; var rect = []; rect.push(0x01); // raw for (var 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 () { var info = [{ x: 0, y: 0, width: 4, height: 4, encoding: 0x05 }]; var rect = []; rect.push(0x02); rect.push32(0xff00ff); // becomes 00ff00ff --> #00FF00 bg color send_fbu_msg(info, [rect], client); var expected = []; for (var i = 0; i < 16; i++) { expected.push32(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._fb_width = 8; client._display._viewportLoc.w = 8; var info = [{ x: 0, y: 0, width: 32, height: 4, encoding: 0x05 }]; var rect = []; // send a bg frame rect.push(0x02); rect.push32(0xff00ff); // becomes 00ff00ff --> #00FF00 bg color // send an empty frame rect.push(0x00); send_fbu_msg(info, [rect], client); var expected = []; var i; for (i = 0; i < 16; i++) { expected.push32(0xff00ff); } // rect 1: solid for (i = 0; i < 16; i++) { expected.push32(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 () { var info = [{ x: 0, y: 0, width: 4, height: 4, encoding: 0x05 }]; var rect = []; rect.push(0x02 | 0x08 | 0x10); // bg spec, anysubrects, colouredsubrects rect.push32(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); var info = [{ x: 0, y: 0, width: 4, height: 17, encoding: 0x05}]; var rect = []; rect.push(0x02 | 0x04 | 0x08); // bg spec, fg spec, anysubrects rect.push32(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 var i; for (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); var expected = []; for (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 () { var info = [{ x: 0, y: 0, width: 4, height: 4, encoding: 0x05 }]; var rects = [[45]]; // an invalid subencoding send_fbu_msg(info, rects, client); expect(client._rfb_state).to.equal('failed'); }); }); 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 () { client.set_onFBResize(sinon.spy()); sinon.spy(client._display, 'resize'); send_fbu_msg([{ x: 0, y: 0, width: 20, height: 50, encoding: -223 }], [[]], client); var spy = client.get_onFBResize(); expect(spy).to.have.been.calledOnce; expect(spy).to.have.been.calledWith(sinon.match.any, 20, 50); 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 () { var client; beforeEach(function () { client = make_rfb(); client.connect('host', 8675); client._sock._websocket._open(); client._rfb_state = 'normal'; client._fb_name = 'some device'; client._supportsSetDesktopSize = false; // a really small frame client._fb_width = 4; client._fb_height = 4; client._display._fb_width = 4; client._display._fb_height = 4; client._display._viewportLoc.w = 4; client._display._viewportLoc.h = 4; client._fb_Bpp = 4; sinon.spy(client._display, 'resize'); client.set_onFBResize(sinon.spy()); }); function make_screen_data (nr_of_screens) { var data = []; data.push8(nr_of_screens); // number-of-screens data.push8(0); // padding data.push16(0); // padding for (var i=0; i