MeshCentral/agents/modules_meshcore/monitor-info.js
2018-11-28 10:50:25 -08:00

238 lines
12 KiB
JavaScript

var promise = require('promise');
var PPosition = 4;
var PSize = 8;
var _NET_WM_STATE_REMOVE = 0; // remove/unset property
var _NET_WM_STATE_ADD = 1; // add/set property
var _NET_WM_STATE_TOGGLE = 2; // toggle property
var SubstructureRedirectMask = (1 << 20);
var SubstructureNotifyMask = (1 << 19);
function monitorinfo()
{
this._ObjectID = 'monitor-info';
this._gm = require('_GenericMarshal');
if (process.platform == 'win32')
{
this._user32 = this._gm.CreateNativeProxy('user32.dll');
this._user32.CreateMethod('EnumDisplayMonitors');
this._kernel32 = this._gm.CreateNativeProxy('kernel32.dll');
this._kernel32.CreateMethod('GetLastError');
this.getInfo = function getInfo()
{
var info = this;
return (new promise(function (resolver, rejector) {
this._monitorinfo = { resolver: resolver, rejector: rejector, self: info, callback: info._gm.GetGenericGlobalCallback(4) };
this._monitorinfo.callback.info = this._monitorinfo;
this._monitorinfo.dwData = info._gm.ObjectToPtr(this._monitorinfo);
this._monitorinfo.callback.results = [];
this._monitorinfo.callback.on('GlobalCallback', function OnMonitorInfo(hmon, hdc, r, user) {
if (this.ObjectToPtr_Verify(this.info, user)) {
var rb = r.Deref(0, 16).toBuffer();
this.results.push({ left: rb.readInt32LE(0), top: rb.readInt32LE(4), right: rb.readInt32LE(8), bottom: rb.readInt32LE(12) });
var r = this.info.self._gm.CreateInteger();
r.Val = 1;
return (r);
}
});
if (info._user32.EnumDisplayMonitors(0, 0, this._monitorinfo.callback, this._monitorinfo.dwData).Val == 0) {
rejector('LastError=' + info._kernel32.GetLastError().Val);
return;
} else {
resolver(this._monitorinfo.callback.results);
}
}));
}
}
else if (process.platform == 'linux')
{
// First thing we need to do, is determine where the X11 libraries are
var askOS = false;
try { if (require('user-sessions').isRoot()) { askOS = true; } } catch (e) { }
if (askOS)
{
// Sufficient access rights to use ldconfig
var p = require('child_process').execFile('/bin/sh', ['sh']);
p.stdout._lines = '';
p.stdout.on('data', function (chunk) { this._lines += chunk.toString(); });
p.stdin.write('ldconfig -v\nexit\n');
p.waitExit();
var paths = p.stdout._lines.split('\n');
var searchPath = '';
for (var i in paths) {
if (paths[i].endsWith(':')) {
searchPath = paths[i].substring(0, paths[i].length - 1);
} else {
try { // Added by Ylian: Try/catch to fix X11 detection, not sure if this is correct.
if (paths[i].split('libX11.').length > 1) { Object.defineProperty(this, 'Location_X11LIB', { value: searchPath + '/' + paths[i].split('->')[1].trim() }); }
if (paths[i].split('libXtst.').length > 1) { Object.defineProperty(this, 'Location_X11TST', { value: searchPath + '/' + paths[i].split('->')[1].trim() }); }
if (paths[i].split('libXext.').length > 1) { Object.defineProperty(this, 'Location_X11EXT', { value: searchPath + '/' + paths[i].split('->')[1].trim() }); }
} catch (ex) { }
}
}
}
else
{
// Not enough access rights to use ldconfig, so manually search
var fs = require('fs');
var files = fs.readdirSync('/usr/lib');
var files2;
for (var i in files) {
try {
if (files[i].split('libX11.so.').length > 1 && files[i].split('.').length == 3) {
Object.defineProperty(this, 'Location_X11LIB', { value: '/usr/lib/' + files[i] });
}
if (files[i].split('libXtst.so.').length > 1 && files[i].split('.').length == 3) {
Object.defineProperty(this, 'Location_X11TST', { value: '/usr/lib/' + files[i] });
}
if (files[i].split('libXext.so.').length > 1 && files[i].split('.').length == 3) {
Object.defineProperty(this, 'Location_X11EXT', { value: '/usr/lib/' + files[i] });
}
if (files[i].split('-linux-').length > 1) {
files2 = fs.readdirSync('/usr/lib/' + files[i]);
for (j in files2) {
if (files2[j].split('libX11.so.').length > 1 && files2[j].split('.').length == 3) {
Object.defineProperty(this, 'Location_X11LIB', { value: '/usr/lib/' + files[i] + '/' + files2[j] });
}
if (files2[j].split('libXtst.so.').length > 1 && files2[j].split('.').length == 3) {
Object.defineProperty(this, 'Location_X11TST', { value: '/usr/lib/' + files[i] + '/' + files2[j] });
}
if (files2[j].split('libXext.so.').length > 1 && files2[j].split('.').length == 3) {
Object.defineProperty(this, 'Location_X11EXT', { value: '/usr/lib/' + files[i] + '/' + files2[j] });
}
}
}
} catch (ex) { }
}
}
Object.defineProperty(this, 'kvm_x11_support', { value: (this.Location_X11LIB && this.Location_X11TST && this.Location_X11EXT)?true:false });
if (this.Location_X11LIB)
{
this._X11 = this._gm.CreateNativeProxy(this.Location_X11LIB);
this._X11.CreateMethod('XChangeProperty');
this._X11.CreateMethod('XCloseDisplay');
this._X11.CreateMethod('XCreateGC');
this._X11.CreateMethod('XCreateWindow');
this._X11.CreateMethod('XCreateSimpleWindow');
this._X11.CreateMethod('XDefaultColormap');
this._X11.CreateMethod('XDefaultScreen');
this._X11.CreateMethod('XDrawLine');
this._X11.CreateMethod('XDisplayHeight');
this._X11.CreateMethod('XDisplayWidth');
this._X11.CreateMethod('XFetchName');
this._X11.CreateMethod('XFlush');
this._X11.CreateMethod('XFree');
this._X11.CreateMethod('XCreateGC');
this._X11.CreateMethod('XGetWindowProperty');
this._X11.CreateMethod('XInternAtom');
this._X11.CreateMethod('XMapWindow');
this._X11.CreateMethod({ method: 'XNextEvent', threadDispatch: true });
this._X11.CreateMethod('XOpenDisplay');
this._X11.CreateMethod('XRootWindow');
this._X11.CreateMethod('XScreenCount');
this._X11.CreateMethod('XScreenOfDisplay');
this._X11.CreateMethod('XSelectInput');
this._X11.CreateMethod('XSendEvent');
this._X11.CreateMethod('XSetForeground');
this._X11.CreateMethod('XSetFunction');
this._X11.CreateMethod('XSetLineAttributes');
this._X11.CreateMethod('XSetNormalHints');
this._X11.CreateMethod('XSetSubwindowMode');
this._X11.CreateMethod('XBlackPixel');
this._X11.CreateMethod('XWhitePixel');
}
this.isUnity = function isUnity()
{
return (process.env['XDG_CURRENT_DESKTOP'] == 'Unity');
}
this.unDecorateWindow = function unDecorateWindow(display, window)
{
var MwmHints = this._gm.CreateVariable(40);
var mwmHintsProperty = this._X11.XInternAtom(display, this._gm.CreateVariable('_MOTIF_WM_HINTS'), 0);
MwmHints.Deref(0, 4).toBuffer().writeUInt32LE(1 << 1);
this._X11.XChangeProperty(display, window, mwmHintsProperty, mwmHintsProperty, 32, 0, MwmHints, 5);
}
this.setWindowSizeHints = function setWindowSizeHints(display, window, x, y, width, height)
{
var sizeHints = this._gm.CreateVariable(80);
sizeHints.Deref(0, 4).toBuffer().writeUInt32LE(PPosition | PSize);
sizeHints.Deref(8, 4).toBuffer().writeUInt32LE(x);
sizeHints.Deref(12, 4).toBuffer().writeUInt32LE(y);
sizeHints.Deref(16, 4).toBuffer().writeUInt32LE(width);
sizeHints.Deref(20, 4).toBuffer().writeUInt32LE(height);
this._X11.XSetNormalHints(display, window, sizeHints);
}
this.setAlwaysOnTop = function setAlwaysOnTop(display, rootWindow, window)
{
var wmNetWmState = this._X11.XInternAtom(display, this._gm.CreateVariable('_NET_WM_STATE'), 1);
var wmStateAbove = this._X11.XInternAtom(display, this._gm.CreateVariable('_NET_WM_STATE_ABOVE'), 1);
var xclient = this._gm.CreateVariable(96);
xclient.Deref(0, 4).toBuffer().writeUInt32LE(33); // ClientMessage type
xclient.Deref(48, 4).toBuffer().writeUInt32LE(32); // Format 32
wmNetWmState.pointerBuffer().copy(xclient.Deref(40, 8).toBuffer()); // message_type
xclient.Deref(56, 8).toBuffer().writeUInt32LE(_NET_WM_STATE_ADD); // data.l[0]
wmStateAbove.pointerBuffer().copy(xclient.Deref(64, 8).toBuffer()); // data.l[1]
window.pointerBuffer().copy(xclient.Deref(32, 8).toBuffer()); // window
this._X11.XSendEvent(display, rootWindow, 0, SubstructureRedirectMask | SubstructureNotifyMask, xclient);
}
this.hideWindowIcon = function hideWindowIcon(display, rootWindow, window)
{
var wmNetWmState = this._X11.XInternAtom(display, this._gm.CreateVariable('_NET_WM_STATE'), 1);
var wmStateSkip = this._X11.XInternAtom(display, this._gm.CreateVariable('_NET_WM_STATE_SKIP_TASKBAR'), 1);
var xclient = this._gm.CreateVariable(96);
xclient.Deref(0, 4).toBuffer().writeUInt32LE(33); // ClientMessage type
xclient.Deref(48, 4).toBuffer().writeUInt32LE(32); // Format 32
wmNetWmState.pointerBuffer().copy(xclient.Deref(40, 8).toBuffer()); // message_type
xclient.Deref(56, 8).toBuffer().writeUInt32LE(_NET_WM_STATE_ADD); // data.l[0]
wmStateSkip.pointerBuffer().copy(xclient.Deref(64, 8).toBuffer()); // data.l[1]
window.pointerBuffer().copy(xclient.Deref(32, 8).toBuffer()); // window
this._X11.XSendEvent(display, rootWindow, 0, SubstructureRedirectMask | SubstructureNotifyMask, xclient);
}
this.getInfo = function getInfo()
{
var info = this;
return (new promise(function (resolver, rejector)
{
var display = info._X11.XOpenDisplay(info._gm.CreateVariable(':0'));
var screenCount = info._X11.XScreenCount(display).Val;
var ret = [];
for(var i=0;i<screenCount;++i)
{
var screen = info._X11.XScreenOfDisplay(display, i);
ret.push({ left: 0, top: 0, right: info._X11.XDisplayWidth(display, i).Val, bottom: info._X11.XDisplayHeight(display, i).Val, screen: screen, screenId: i, display: display });
}
resolver(ret);
}));
}
}
else
{
throw (process.platform + ' not supported');
}
}
module.exports = new monitorinfo();