Added way to use cookies only once, added desktopPrivacyBarText option in domain.

This commit is contained in:
Ylian Saint-Hilaire 2019-12-11 15:44:10 -08:00
parent efd936315d
commit bdf51e1200
6 changed files with 153 additions and 20 deletions

View File

@ -627,6 +627,7 @@ function createMeshCore(agent) {
tunnel.sessionid = data.sessionid;
tunnel.rights = data.rights;
tunnel.consent = data.consent;
tunnel.privacybartext = data.privacybartext ? data.privacybartext : 'Sharing desktop with: {0}';
tunnel.username = data.username;
tunnel.userid = data.userid;
tunnel.remoteaddr = data.remoteaddr;
@ -1300,8 +1301,7 @@ function createMeshCore(agent) {
this.httprequest.desktop.kvm.users.splice(i, 1);
this.httprequest.desktop.kvm.connectionBar.removeAllListeners('close');
this.httprequest.desktop.kvm.connectionBar.close();
this.httprequest.desktop.kvm.connectionBar = require('notifybar-desktop')('Sharing desktop with: ' + this.httprequest.desktop.kvm.users.sort().join(', '), require('MeshAgent')._tsid);
this.httprequest.desktop.kvm.connectionBar = require('notifybar-desktop')(this.httprequest.privacybartext.replace('{0}', this.httprequest.desktop.kvm.users.sort().join(', ')), require('MeshAgent')._tsid);
this.httprequest.desktop.kvm.connectionBar.httprequest = this.httprequest;
this.httprequest.desktop.kvm.connectionBar.on('close', function ()
{
@ -1366,7 +1366,7 @@ function createMeshCore(agent) {
}
try
{
this.ws.httprequest.desktop.kvm.connectionBar = require('notifybar-desktop')('Sharing desktop with: ' + this.ws.httprequest.desktop.kvm.users.sort().join(', '), require('MeshAgent')._tsid);
this.ws.httprequest.desktop.kvm.connectionBar = require('notifybar-desktop')(this.ws.httprequest.privacybartext.replace('{0}', this.ws.httprequest.desktop.kvm.users.sort().join(', ')), require('MeshAgent')._tsid);
MeshServerLog('Remote Desktop Connection Bar Activated/Updated (' + this.ws.httprequest.remoteaddr + ')', this.ws.httprequest);
}
catch(xx)
@ -1420,7 +1420,7 @@ function createMeshCore(agent) {
}
try
{
this.httprequest.desktop.kvm.connectionBar = require('notifybar-desktop')('Sharing desktop with: ' + this.httprequest.desktop.kvm.users.sort().join(', '), require('MeshAgent')._tsid);
this.httprequest.desktop.kvm.connectionBar = require('notifybar-desktop')(this.httprequest.privacybartext.replace('{0}', this.httprequest.desktop.kvm.users.sort().join(', ')), require('MeshAgent')._tsid);
MeshServerLog('Remote Desktop Connection Bar Activated/Updated (' + this.httprequest.remoteaddr + ')', this.httprequest);
}
catch(xx)

132
agents/meshcore.min.js vendored
View File

@ -627,6 +627,7 @@ function createMeshCore(agent) {
tunnel.sessionid = data.sessionid;
tunnel.rights = data.rights;
tunnel.consent = data.consent;
tunnel.privacybartext = data.privacybartext ? data.privacybartext : 'Sharing desktop with: {0}';
tunnel.username = data.username;
tunnel.userid = data.userid;
tunnel.remoteaddr = data.remoteaddr;
@ -696,18 +697,30 @@ function createMeshCore(agent) {
} catch (e) { }
break;
}
case 'deskBackground': {
case 'deskBackground':
{
// Toggle desktop background
try {
if (process.platform == 'win32') {
if (process.platform == 'win32')
{
var stype = require('user-sessions').getProcessOwnerName(process.pid).tsid == 0 ? 1 : 0;
var sid = undefined;
if (stype == 1)
{
if(require('MeshAgent')._tsid != null)
{
stype = 5;
sid = require('MeshAgent')._tsid;
}
}
var id = require('user-sessions').getProcessOwnerName(process.pid).tsid == 0 ? 1 : 0;
var child = require('child_process').execFile(process.execPath, [process.execPath.split('\\').pop(), '-b64exec', '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'], { type: id });
var child = require('child_process').execFile(process.execPath, [process.execPath.split('\\').pop(), '-b64exec', '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'], { type: stype, uid: sid });
child.stdout.str = ''; child.stdout.on('data', function (c) { this.str += c.toString(); });
child.stderr.on('data', function () { });
child.waitExit();
var current = child.stdout.str.trim();
if (current != '') { require('MeshAgent')._wallpaper = current; }
child = require('child_process').execFile(process.execPath, [process.execPath.split('\\').pop(), '-b64exec', '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', current != '' ? '""' : require('MeshAgent')._wallpaper], { type: id });
child = require('child_process').execFile(process.execPath, [process.execPath.split('\\').pop(), '-b64exec', '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', current != '' ? '""' : require('MeshAgent')._wallpaper], { type: stype, uid: sid });
child.stdout.str = ''; child.stdout.on('data', function (c) { this.str += c.toString(); });
child.stderr.on('data', function () { });
child.waitExit();
@ -717,7 +730,10 @@ function createMeshCore(agent) {
if (current != '/dev/null') { require('MeshAgent')._wallpaper = current; }
require('linux-gnome-helpers').setDesktopWallpaper(id, current != '/dev/null' ? undefined : require('MeshAgent')._wallpaper);
}
} catch (e) { }
} catch (e)
{
sendConsoleText(e);
}
break;
}
case 'openUrl': {
@ -1285,8 +1301,7 @@ function createMeshCore(agent) {
this.httprequest.desktop.kvm.users.splice(i, 1);
this.httprequest.desktop.kvm.connectionBar.removeAllListeners('close');
this.httprequest.desktop.kvm.connectionBar.close();
this.httprequest.desktop.kvm.connectionBar = require('notifybar-desktop')('Sharing desktop with: ' + this.httprequest.desktop.kvm.users.sort().join(', '), require('MeshAgent')._tsid);
this.httprequest.desktop.kvm.connectionBar = require('notifybar-desktop')(this.httprequest.privacybartext.replace('{0}', this.httprequest.desktop.kvm.users.sort().join(', ')), require('MeshAgent')._tsid);
this.httprequest.desktop.kvm.connectionBar.httprequest = this.httprequest;
this.httprequest.desktop.kvm.connectionBar.on('close', function ()
{
@ -1351,7 +1366,7 @@ function createMeshCore(agent) {
}
try
{
this.ws.httprequest.desktop.kvm.connectionBar = require('notifybar-desktop')('Sharing desktop with: ' + this.ws.httprequest.desktop.kvm.users.sort().join(', '), require('MeshAgent')._tsid);
this.ws.httprequest.desktop.kvm.connectionBar = require('notifybar-desktop')(this.ws.httprequest.privacybartext.replace('{0}', this.ws.httprequest.desktop.kvm.users.sort().join(', ')), require('MeshAgent')._tsid);
MeshServerLog('Remote Desktop Connection Bar Activated/Updated (' + this.ws.httprequest.remoteaddr + ')', this.ws.httprequest);
}
catch(xx)
@ -1405,7 +1420,7 @@ function createMeshCore(agent) {
}
try
{
this.httprequest.desktop.kvm.connectionBar = require('notifybar-desktop')('Sharing desktop with: ' + this.httprequest.desktop.kvm.users.sort().join(', '), require('MeshAgent')._tsid);
this.httprequest.desktop.kvm.connectionBar = require('notifybar-desktop')(this.httprequest.privacybartext.replace('{0}', this.httprequest.desktop.kvm.users.sort().join(', ')), require('MeshAgent')._tsid);
MeshServerLog('Remote Desktop Connection Bar Activated/Updated (' + this.httprequest.remoteaddr + ')', this.httprequest);
}
catch(xx)
@ -1856,7 +1871,11 @@ function createMeshCore(agent) {
var response = null;
switch (cmd) {
case 'help': { // Displays available commands
var fin = '', f = '', availcommands = 'help,info,osinfo,args,print,type,dbkeys,dbget,dbset,dbcompact,eval,parseuri,httpget,nwslist,plugin,wsconnect,wssend,wsclose,notify,ls,ps,kill,amt,netinfo,location,power,wakeonlan,setdebug,smbios,rawsmbios,toast,lock,users,sendcaps,openurl,amtreset,amtccm,amtacm,amtdeactivate,amtpolicy,getscript,getclip,setclip,log,av,cpuinfo,sysinfo,apf,scanwifi,scanamt,safemode,wallpaper';
var fin = '', f = '', availcommands = 'help,info,osinfo,args,print,type,dbkeys,dbget,dbset,dbcompact,eval,parseuri,httpget,nwslist,plugin,wsconnect,wssend,wsclose,notify,ls,ps,kill,amt,netinfo,location,power,wakeonlan,setdebug,smbios,rawsmbios,toast,lock,users,sendcaps,openurl,amtreset,amtccm,amtacm,amtdeactivate,amtpolicy,getscript,getclip,setclip,log,av,cpuinfo,sysinfo,apf,scanwifi,scanamt,wallpaper';
if (process.platform == 'win32')
{
availcommands += ',safemode,wpfhwacceleration';
}
availcommands = availcommands.split(',').sort();
while (availcommands.length > 0) {
if (f.length > 100) { fin += (f + ',\r\n'); f = ''; }
@ -1866,6 +1885,71 @@ function createMeshCore(agent) {
response = 'Available commands: \r\n' + fin + '.';
break;
}
case 'wpfhwacceleration':
if (process.platform != 'win32') { throw ('wpfhwacceleration setting is only supported on Windows'); }
if (args['_'].length != 1)
{
response = 'Proper usage: wpfhwacceleration (ON|OFF|STATUS)'; // Display usage
}
else
{
var reg = require('win-registry');
var uname = require('user-sessions').getUsername(require('user-sessions').consoleUid());
var key = reg.usernameToUserKey(uname);
switch(args['_'][0].toUpperCase())
{
default:
response = 'Proper usage: wpfhwacceleration (ON|OFF|STATUS|DEFAULT)'; // Display usage
break;
case 'ON':
try
{
reg.WriteKey(reg.HKEY.Users, key + '\\SOFTWARE\\Microsoft\\Avalon.Graphics', 'DisableHWAcceleration', 0);
response = 'OK';
}
catch (ee)
{
response = 'FAILED';
}
break;
case 'OFF':
try
{
reg.WriteKey(reg.HKEY.Users, key + '\\SOFTWARE\\Microsoft\\Avalon.Graphics', 'DisableHWAcceleration', 1);
response = 'OK';
}
catch (ee)
{
response = 'FAILED';
}
break;
break;
case 'STATUS':
var s;
try
{
s = reg.QueryKey(reg.HKEY.Users, key + '\\SOFTWARE\\Microsoft\\Avalon.Graphics', 'DisableHWAcceleration')==1?'DISABLED':'ENABLED';
}
catch (ee)
{
s = 'DEFAULT';
}
response = 'WPF Hardware Acceleration: ' + s;
break;
case 'DEFAULT':
try
{
reg.DeleteKey(reg.HKEY.Users, key + '\\SOFTWARE\\Microsoft\\Avalon.Graphics', 'DisableHWAcceleration');
}
catch (ee)
{
}
response = 'OK';
break;
}
}
break;
case 'tsid':
if (process.platform == 'win32')
{
@ -1880,6 +1964,10 @@ function createMeshCore(agent) {
response = 'TSID set to: ' + (require('MeshAgent')._tsid == null ? 'console' : require('MeshAgent')._tsid);
}
}
else
{
response = 'TSID command only supported on Windows';
}
break;
case 'activeusers':
if (process.platform == 'win32')
@ -1899,6 +1987,10 @@ function createMeshCore(agent) {
sendConsoleText(JSON.stringify(v, null, 1), this.sessionid);
});
}
else
{
response = 'activeusers command only supported on Windows';
}
break;
case 'wallpaper':
if (process.platform != 'win32' && !(process.platform == 'linux' && require('linux-gnome-helpers').available))
@ -2106,8 +2198,16 @@ function createMeshCore(agent) {
break;
}
case 'toast': {
if (args['_'].length < 1) { response = 'Proper usage: toast "message"'; } else {
require('toaster').Toast('MeshCentral', args['_'][0]).then(sendConsoleText, sendConsoleText);
if (args['_'].length < 1) { response = 'Proper usage: toast "message"'; } else
{
if (require('MeshAgent')._tsid == null)
{
require('toaster').Toast('MeshCentral', args['_'][0]).then(sendConsoleText, sendConsoleText);
}
else
{
require('toaster').Toast('MeshCentral', args['_'][0], require('MeshAgent')._tsid).then(sendConsoleText, sendConsoleText);
}
}
break;
}
@ -2243,10 +2343,14 @@ function createMeshCore(agent) {
case 'osinfo': { // Return the operating system information
var i = 1;
if (args['_'].length > 0) { i = parseInt(args['_'][0]); if (i > 8) { i = 8; } response = 'Calling ' + i + ' times.'; }
for (var j = 0; j < i; j++) {
for (var j = 0; j < i; j++)
{
var pr = require('os').name();
pr.sessionid = sessionid;
pr.then(function (v) { sendConsoleText("OS: " + v, this.sessionid); });
pr.then(function (v)
{
sendConsoleText("OS: " + v + (process.platform=='win32'?(require('win-virtual-terminal').supported?' [ConPTY: YES]':' [ConPTY: NO]'):''), this.sessionid);
});
}
break;
}

View File

@ -69,6 +69,8 @@ function CreateMeshCentralServer(config, args) {
obj.taskLimiter = obj.common.createTaskLimiterQueue(50, 20, 60); // (maxTasks, maxTaskTime, cleaningInterval) This is a task limiter queue to smooth out server work.
obj.agentUpdateBlockSize = 65531; // MeshAgent update block size
obj.serverWarnings = []; // List of warnings that should be shown to administrators
obj.cookieUseOnceTable = {}; // List of cookies that are already expired
obj.cookieUseOnceTableCleanCounter = 0; // Clean the cookieUseOnceTable each 20 additions
try { obj.currentVer = JSON.parse(obj.fs.readFileSync(obj.path.join(__dirname, 'package.json'), 'utf8')).version; } catch (e) { } // Fetch server version
// Setup the default configuration and files paths
@ -1857,7 +1859,30 @@ function CreateMeshCentralServer(config, args) {
// Decode a cookie back into an object using a key using AES256-GCM or AES128-CBC/HMAC-SHA386. Return null if it's not a valid cookie. (key must be 32 bytes or more)
obj.decodeCookie = function (cookie, key, timeout) {
const r = obj.decodeCookieAESGCM(cookie, key, timeout);
if (r == null) { return obj.decodeCookieAESSHA(cookie, key, timeout); }
if (r == null) { r = obj.decodeCookieAESSHA(cookie, key, timeout); }
if ((r != null) && (typeof r.once == 'string') && (r.once.length > 0)) {
// This cookie must only be used once.
if (timeout == null) { timeout = 2; }
if (obj.cookieUseOnceTable[r.once] == null) {
const ctimeout = (((r.expire) == null || (typeof r.expire != 'number')) ? (r.time + ((timeout + 3) * 60000)) : (r.time + ((r.expire + 3) * 60000)));
// Store the used cookie in RAM
obj.cookieUseOnceTable[r.once] = ctimeout;
// Store the used cookie in the database
// TODO
// Send the used cookie to peer servers
// TODO
// Clean up the used table
if (++obj.cookieUseOnceTableCleanCounter > 20) {
const now = Date.now();
for (var i in obj.cookieUseOnceTable) { if (obj.cookieUseOnceTable[i] < now) { delete obj.cookieUseOnceTable[i]; } }
obj.cookieUseOnceTableCleanCounter = 0;
}
} else { return null; }
}
return r;
}

View File

@ -88,6 +88,7 @@ module.exports.CreateMeshRelay = function (parent, ws, req, domain, user, cookie
command.consent = mesh.consent; // Add user consent
if (typeof domain.userconsentflags == 'number') { command.consent |= domain.userconsentflags; } // Add server required consent flags
command.username = user.name; // Add user name
if (typeof domain.desktopprivacybartext == 'string') { command.privacybartext = domain.desktopprivacybartext; } // Privacy bar text
delete command.nodeid; // Remove the nodeid since it's implyed.
agent.send(JSON.stringify(command));
return true;
@ -105,6 +106,7 @@ module.exports.CreateMeshRelay = function (parent, ws, req, domain, user, cookie
command.consent = mesh.consent; // Add user consent
if (typeof domain.userconsentflags == 'number') { command.consent |= domain.userconsentflags; } // Add server required consent flags
command.username = user.name; // Add user name
if (typeof domain.desktopprivacybartext == 'string') { command.privacybartext = domain.desktopprivacybartext; } // Privacy bar text
parent.parent.multiServer.DispatchMessageSingleServer(command, routing.serverid);
return true;
}

View File

@ -165,6 +165,7 @@ module.exports.CreateMeshUser = function (parent, db, ws, req, args, domain, use
command.username = user.name; // Add user name
command.userid = user._id; // Add user id
command.remoteaddr = cleanRemoteAddr(req.ip); // User's IP address
if (typeof domain.desktopprivacybartext == 'string') { command.privacybartext = domain.desktopprivacybartext; } // Privacy bar text
delete command.nodeid; // Remove the nodeid since it's implied
try { agent.send(JSON.stringify(command)); } catch (ex) { }
}
@ -183,6 +184,7 @@ module.exports.CreateMeshUser = function (parent, db, ws, req, args, domain, use
command.username = user.name; // Add user name
command.userid = user._id; // Add user id
command.remoteaddr = cleanRemoteAddr(req.ip); // User's IP address
if (typeof domain.desktopprivacybartext == 'string') { command.privacybartext = domain.desktopprivacybartext; } // Privacy bar text
parent.parent.multiServer.DispatchMessageSingleServer(command, routing.serverid);
}
}

View File

@ -1,6 +1,6 @@
{
"name": "meshcentral",
"version": "0.4.5-q",
"version": "0.4.5-r",
"keywords": [
"Remote Management",
"Intel AMT",