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Code Issues Releases Wiki Activity

Added Web-RDP mouse cursor support.

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Ylian Saint-Hilaire 2022-06-23 22:10:07 -07:00
parent 339e3efbef
commit 6dbae08c40
6 changed files with 109 additions and 17 deletions
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87
rdp/protocol/pdu/data.js
View file

@ -186,7 +186,7 @@ var FastPathUpdateType = {
FASTPATH_UPDATETYPE_PTR_NULL : 0x5,
FASTPATH_UPDATETYPE_PTR_DEFAULT : 0x6,
FASTPATH_UPDATETYPE_PTR_POSITION : 0x8,
FASTPATH_UPDATETYPE_COLOR : 0x9,
FASTPATH_UPDATETYPE_COLOR : 0x9, // Mouse cursor
FASTPATH_UPDATETYPE_CACHED : 0xA,
FASTPATH_UPDATETYPE_POINTER : 0xB
};
@ -1075,7 +1075,7 @@ function clipPDU() {
* @param opt {object} type option
* @returns {type.Component}
*/
function fastPathBitmapUpdateDataPDU (opt) {
function fastPathBitmapUpdateDataPDU(opt) {
var self = {
__FASTPATH_UPDATE_TYPE__ : FastPathUpdateType.FASTPATH_UPDATETYPE_BITMAP,
header : new type.UInt16Le(FastPathUpdateType.FASTPATH_UPDATETYPE_BITMAP, { constant : true }),
@ -1093,13 +1093,67 @@ function fastPathBitmapUpdateDataPDU (opt) {
return new type.Component(self, opt);
}
// This is a table of cursorid to cursor name.
// Created by movering the mouse over this page: https://www.w3schools.com/csSref/tryit.asp?filename=trycss_cursor
const cursorIdTable = {
// Normal style mouse cursor
903013897: 'alias',
370524792: 'all-scroll',
853046751: 'cell',
2101250798: 'col-resize',
703681364: 'copy',
992638936: 'crosshair',
1539083673: 'ew-resize',
1919796298: 'grab',
1010243511: 'grabbing',
1247283057: 'help',
1390892051: 'none',
885751489: 'not-allowed',
1732952247: 'row-resize',
747144997: 'url',
2018345610: 'zoom-in',
347367048: 'zoom-out',
1872942890: 'default',
1737852989: 'text',
1932827019: 'ns-resize',
1884471290: 'nesw-resize',
1204065391: 'nwse-resize',
2030531519: 'progress',
1050842114: 'pointer',
// Black style cursors
1258195498: 'default',
219484254: 'all-scroll',
399295089: 'text',
1912613597: 'wait',
864127801: 'ew-resize',
23245044: 'nesw-resize',
1966995494: 'not-allowed',
1873216615: 'help',
255126408: 'nesw-resize',
157191894: 'ns-resize',
1768446509: 'pointer',
1032011501: 'crosshair'
}
function fastPathPointerUpdateDataPDU(opt, cursorId, cursorStr) {
var self = {
__FASTPATH_UPDATE_TYPE__: FastPathUpdateType.FASTPATH_UPDATETYPE_COLOR,
header: new type.UInt16Le(FastPathUpdateType.FASTPATH_UPDATETYPE_COLOR, { constant: true }),
cursorId: cursorId,
cursorStr: cursorStr
};
return new type.Component(self, opt);
}
/**
* @see http://msdn.microsoft.com/en-us/library/cc240622.aspx
* @param updateData {type.Component}
* @param opt {object} type option
* @returns {type.Component}
*/
function fastPathUpdatePDU (updateData, opt) {
function fastPathUpdatePDU(updateData, opt) {
var self = {
updateHeader : new type.UInt8( function () {
return self.updateData.obj.__FASTPATH_UPDATE_TYPE__;
@ -1116,12 +1170,27 @@ function fastPathUpdatePDU (updateData, opt) {
}) };
switch (self.updateHeader.value & 0xf) {
case FastPathUpdateType.FASTPATH_UPDATETYPE_BITMAP:
self.updateData = fastPathBitmapUpdateDataPDU(options).read(s);
break;
default:
self.updateData = new type.BinaryString(null, options).read(s);
log.debug('unknown fast path pdu type ' + (self.updateHeader.value & 0xf));
case FastPathUpdateType.FASTPATH_UPDATETYPE_BITMAP: {
self.updateData = fastPathBitmapUpdateDataPDU(options).read(s);
break;
}
case FastPathUpdateType.FASTPATH_UPDATETYPE_COLOR: {
var data = new type.BinaryString(null, options).read(s);
// Hash the data to get a cursor id.
// This is a hack since the cursor bitmap is sent but we can't use that, we has hash the bitmap and use that as a hint as to what cursor we need to display
const hasher = require('crypto').createHash('sha384');
hasher.update(data.value);
const cursorid = Math.abs(hasher.digest().readInt32BE(0));
const cursorStr = cursorIdTable[cursorid];
//if (cursorStr == null) { console.log('Unknown cursorId: ' + cursorid); }
self.updateData = fastPathPointerUpdateDataPDU(options, cursorid, cursorStr);
break;
}
default: {
self.updateData = new type.BinaryString(null, options).read(s);
log.debug('unknown fast path pdu type ' + (self.updateHeader.value & 0xf));
}
}
})
};

13
rdp/protocol/pdu/global.js
View file

@ -268,11 +268,16 @@ Client.prototype.recvServerFontMapPDU = function(s) {
*/
Client.prototype.recvFastPath = function (secFlag, s) {
while (s.availableLength() > 0) {
var pdu = data.fastPathUpdatePDU().read(s);
var pdu = data.fastPathUpdatePDU().read(s);
switch (pdu.obj.updateHeader.value & 0xf) {
case data.FastPathUpdateType.FASTPATH_UPDATETYPE_BITMAP:
this.emit('bitmap', pdu.obj.updateData.obj.rectangles.obj);
break;
case data.FastPathUpdateType.FASTPATH_UPDATETYPE_BITMAP: {
this.emit('bitmap', pdu.obj.updateData.obj.rectangles.obj);
break;
}
case data.FastPathUpdateType.FASTPATH_UPDATETYPE_COLOR: {
this.emit('pointer', pdu.obj.updateData.obj.cursorId, pdu.obj.updateData.obj.cursorStr);
break;
}
default:
}
}