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Merge branch 'master' of https://github.com/Ylianst/MeshCentral

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This commit is contained in:
Ylian Saint-Hilaire 2021-06-03 17:35:56 -07:00
commit e338101965
1 changed files with 180 additions and 31 deletions
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199
agents/recoverycore.js
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@ -6,9 +6,83 @@ var nextTunnelIndex = 1;
var tunnels = {};
var fs = require('fs');
if (require('MeshAgent').ARCHID == null) {
function _getPotentialServiceNames()
{
var registry = require('win-registry');
var ret = [];
var K = registry.QueryKey(registry.HKEY.LocalMachine, 'SYSTEM\\CurrentControlSet\\Services');
var service, s;
while (K.subkeys.length > 0)
{
service = K.subkeys.shift();
try
{
s = registry.QueryKey(registry.HKEY.LocalMachine, 'SYSTEM\\CurrentControlSet\\Services\\' + service, 'ImagePath');
if (s.startsWith(process.execPath) || s.startsWith('"' + process.execPath + '"'))
{
ret.push(service);
}
}
catch (x)
{
}
}
return (ret);
}
function _verifyServiceName(names)
{
var i;
var s;
var ret = null;
for (i = 0; i < names.length; ++i)
{
try
{
s = require('service-manager').manager.getService(names[i]);
if (s.isMe())
{
ret = names[i];
s.close();
break;
}
s.close();
}
catch (z) { }
}
return (ret);
}
function windows_getCommandLine()
{
var parms = [];
var GM = require('_GenericMarshal');
var k32 = GM.CreateNativeProxy('kernel32.dll');
var s32 = GM.CreateNativeProxy('shell32.dll');
k32.CreateMethod('GetCommandLineW');
k32.CreateMethod('LocalFree');
s32.CreateMethod('CommandLineToArgvW');
var v = k32.GetCommandLineW();
var i;
var len = GM.CreateVariable(4);
var val = s32.CommandLineToArgvW(v, len);
len = len.toBuffer().readInt32LE(0);
if (len > 0)
{
for (i = 0; i < len; ++i)
{
parms.push(val.Deref(i * GM.PointerSize, GM.PointerSize).Deref().Wide2UTF8);
}
}
k32.LocalFree(val);
return (parms);
}
if (require('MeshAgent').ARCHID == null)
{
var id = null;
switch (process.platform) {
switch (process.platform)
{
case 'win32':
id = require('_GenericMarshal').PointerSize == 4 ? 3 : 4;
break;
@ -16,10 +90,12 @@ if (require('MeshAgent').ARCHID == null) {
id = require('_GenericMarshal').PointerSize == 4 ? 31 : 30;
break;
case 'darwin':
try {
try
{
id = require('os').arch() == 'x64' ? 16 : 29;
}
catch (xx) {
catch (xx)
{
id = 16;
}
break;
@ -29,17 +105,22 @@ if (require('MeshAgent').ARCHID == null) {
//attachDebugger({ webport: 9994, wait: 1 }).then(function (p) { console.log('Debug on port: ' + p); });
function sendConsoleText(msg, sessionid) {
if (sessionid != null) {
function sendConsoleText(msg, sessionid)
{
if (sessionid != null)
{
require('MeshAgent').SendCommand({ action: 'msg', type: 'console', value: msg, sessionid: sessionid });
}
else {
else
{
require('MeshAgent').SendCommand({ action: 'msg', type: 'console', value: msg });
}
}
function sendAgentMessage(msg, icon) {
if (sendAgentMessage.messages == null) {
function sendAgentMessage(msg, icon)
{
if (sendAgentMessage.messages == null)
{
sendAgentMessage.messages = {};
sendAgentMessage.nextid = 1;
}
@ -48,9 +129,11 @@ function sendAgentMessage(msg, icon) {
}
// Add to the server event log
function MeshServerLog(msg, state) {
function MeshServerLog(msg, state)
{
if (typeof msg == 'string') { msg = { action: 'log', msg: msg }; } else { msg.action = 'log'; }
if (state) {
if (state)
{
if (state.userid) { msg.userid = state.userid; }
if (state.username) { msg.username = state.username; }
if (state.sessionid) { msg.sessionid = state.sessionid; }
@ -60,9 +143,11 @@ function MeshServerLog(msg, state) {
}
// Add to the server event log, use internationalized events
function MeshServerLogEx(id, args, msg, state) {
function MeshServerLogEx(id, args, msg, state)
{
var msg = { action: 'log', msgid: id, msgArgs: args, msg: msg };
if (state) {
if (state)
{
if (state.userid) { msg.userid = state.userid; }
if (state.username) { msg.username = state.username; }
if (state.sessionid) { msg.sessionid = state.sessionid; }
@ -346,6 +431,17 @@ function windows_execve(name, agentfilename, sessionid) {
var arg2 = require('_GenericMarshal').CreateVariable('/C wmic service "' + name + '" call stopservice & "' + cwd + agentfilename + '.update.exe" -b64exec ' + 'dHJ5CnsKICAgIHZhciBzZXJ2aWNlTG9jYXRpb24gPSBwcm9jZXNzLmFyZ3YucG9wKCk7CiAgICByZXF1aXJlKCdwcm9jZXNzLW1hbmFnZXInKS5lbnVtZXJhdGVQcm9jZXNzZXMoKS50aGVuKGZ1bmN0aW9uIChwcm9jKQogICAgewogICAgICAgIGZvciAodmFyIHAgaW4gcHJvYykKICAgICAgICB7CiAgICAgICAgICAgIGlmIChwcm9jW3BdLnBhdGggPT0gc2VydmljZUxvY2F0aW9uKQogICAgICAgICAgICB7CiAgICAgICAgICAgICAgICBwcm9jZXNzLmtpbGwocHJvY1twXS5waWQpOwogICAgICAgICAgICB9CiAgICAgICAgfQogICAgICAgIHByb2Nlc3MuZXhpdCgpOwogICAgfSk7Cn0KY2F0Y2goZSkKewogICAgcHJvY2Vzcy5leGl0KCk7Cn0=' +
' "' + process.execPath + '" & copy "' + cwd + agentfilename + '.update.exe" "' + process.execPath + '" & wmic service "' + name + '" call startservice & erase "' + cwd + agentfilename + '.update.exe"', { wide: true });
if (name == null)
{
// We can continue with self update for Temp/Console Mode on Windows
var db = process.execPath.split('.exe'); db.pop(); db = db.join('.exe') + '.db';
var update = cwd + agentfilename + '.update.exe';
var updatedb = cwd + agentfilename + '.update.db';
var parms = windows_getCommandLine(); parms.shift();
var tmp = '/C copy "' + db + '" "' + updatedb + '" & "' + update + '" ' + parms.join(' ') + ' & move "' + update + '" "' + process.execPath + '" & move "' + updatedb + '" "' + db + '"';
arg2 = require('_GenericMarshal').CreateVariable(tmp, { wide: true });
}
arg1.pointerBuffer().copy(args.toBuffer());
arg2.pointerBuffer().copy(args.toBuffer(), require('_GenericMarshal').PointerSize);
@ -363,7 +459,8 @@ function agentUpdate_Start(updateurl, updateoptions) {
if (updateurl.startsWith("wss://")) { updateurl = "https://" + updateurl.substring(6); }
}
if (agentUpdate_Start._selfupdate != null) {
if (agentUpdate_Start._selfupdate != null)
{
// We were already called, so we will ignore this duplicate request
if (sessionid != null) { sendConsoleText('Self update already in progress...', sessionid); }
}
@ -373,25 +470,58 @@ function agentUpdate_Start(updateurl, updateoptions) {
// This agent doesn't have the ability to tell us which ARCHID it is, so we don't know which agent to pull
sendConsoleText('Unable to initiate update, agent ARCHID is not defined', sessionid);
}
else {
else
{
var agentfilename = process.execPath.split(process.platform == 'win32' ? '\\' : '/').pop(); // Local File Name, ie: MeshAgent.exe
var name = require('MeshAgent').serviceName;
if (name == null) { name = (process.platform == 'win32' ? 'Mesh Agent' : 'meshagent'); } // This is an older agent that doesn't expose the service name, so use the default
try {
if (name == null) { name = process.platform == 'win32' ? 'Mesh Agent' : 'meshagent'; }
if (process.platform == 'win32')
{
// Special Processing for Temporary/Console Mode Agents on Windows
var parms = windows_getCommandLine();
if (parms.findIndex(function (val) { return (val.toUpperCase() == 'RUN' || val.toUpperCase() == 'CONNECT');})>=0)
{
// This is a Temporary/Console Mode Agent
sendConsoleText('This is a temporary/console agent, checking for conflicts with background services...');
// Check to see if our binary conflicts with an installed agent
var agents = _getPotentialServiceNames();
if(_getPotentialServiceNames().length>0)
{
sendConsoleText('Self update cannot continue because the installed agent (' + agents[0] + ') conflicts with the currently running Temp/Console agent...', sessionid);
return;
}
sendConsoleText('No conflicts detected...');
name = null;
}
else
{
// Not running in Temp/Console Mode... No Op here....
}
}
else
{
// Non Windows Self Update
try
{
var s = require('service-manager').manager.getService(name);
if (!s.isMe()) {
if (!s.isMe())
{
if (process.platform == 'win32') { s.close(); }
sendConsoleText('Self Update cannot continue, this agent is not an instance of (' + name + ')', sessionid);
sendConsoleText('Self Update cannot continue, this agent is not an instance of background service (' + name + ')', sessionid);
return;
}
if (process.platform == 'win32') { s.close(); }
}
catch (zz) {
catch (zz)
{
sendConsoleText('Self Update Failed because this agent is not an instance of (' + name + ')', sessionid);
sendAgentMessage('Self Update Failed because this agent is not an instance of (' + name + ')', 3);
return;
}
}
if ((sessionid != null) && (updateurl != null)) { sendConsoleText('Downloading update from: ' + updateurl, sessionid); }
var options = require('http').parseUri(updateurl != null ? updateurl : require('MeshAgent').ServerUrl);
options.protocol = 'https:';
@ -1007,7 +1137,25 @@ require('MeshAgent').AddCommandHandler(function (data) {
function processConsoleCommand(cmd, args, rights, sessionid) {
try {
var response = null;
switch (cmd) {
switch (cmd)
{
default:
{ // This is an unknown command, return an error message
response = 'Unknown command \"' + cmd + '\", type \"help\" for list of available commands.';
break;
}
case 'commandline':
{
if (process.platform == 'win32')
{
response = JSON.stringify(windows_getCommandLine(), null, 1);
}
else
{
response = 'Unknown command \"' + cmd + '\", type \"help\" for list of available commands.';
}
}
break;
case 'help':
response = "Available commands are: agentupdate, agentupdateex, dbkeys, dbget, dbset, dbcompact, eval, netinfo, osinfo, setdebug, versions.";
break;
@ -1097,10 +1245,11 @@ function processConsoleCommand(cmd, args, rights, sessionid) {
response = objToString(interfaces, 0, ' ', true);
break;
}
default: { // This is an unknown command, return an error message
response = 'Unknown command \"' + cmd + '\", type \"help\" for list of available commands.';
break;
case 'name':
{
response = 'Service Name = ' + require('MeshAgent').serviceName;
}
break;
}
} catch (e) { response = "Command returned an exception error: " + e; console.log(e); }
if (response != null) { sendConsoleText(response, sessionid); }