mirror of
https://github.com/Ylianst/MeshCentral.git
synced 2024-12-24 22:25:52 -05:00
Removed task support from agent (for now).
This commit is contained in:
Ylian Saint-Hilaire
parent
08f9b0666f
commit
fbe37b294e
@ -640,7 +640,8 @@ function getIpLocationDataEx(func) {
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}
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// Setup script task. Allows running scripts at scheduled intervals
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var scriptTask = require('scripttask');
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var scriptTask = null;
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try { scriptTask = require('scripttask'); } catch (ex) { }
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// Remove all Gateway MAC addresses for interface list. This is useful because the gateway MAC is not always populated reliably.
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function clearGatewayMac(str) {
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@ -1,454 +0,0 @@
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/**
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* @description MeshCentral ScriptTask plugin
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* @author Ryan Blenis
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* @copyright
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* @license Apache-2.0
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*/
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'use strict';
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var mesh = require('MeshAgent');
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var db = require('SimpleDataStore').Shared();
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var pendingDownload = [];
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var debug_flag = false;
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var runningJobs = [];
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var runningJobPIDs = {};
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var dbg = function (str, sessionid) {
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if (debug_flag || sessionid) { sendConsoleText(str, sessionid); } sendConsoleText
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if (debug_flag !== true) return;
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var logStream = require('fs').createWriteStream('scripttask.txt', { 'flags': 'a' });
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// use {'flags': 'a'} to append and {'flags': 'w'} to erase and write a new file
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logStream.write(new Date().toLocaleString() + ': ' + str + '\n');
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logStream.end('\n');
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}
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Array.prototype.remove = function (from, to) {
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var rest = this.slice((to || from) + 1 || this.length);
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this.length = (from < 0) ? this.length + from : from;
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return this.push.apply(this, rest);
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};
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function processCommand(args, rights, sessionid) {
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switch (args.cmd) {
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case 'trigger':
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var jObj = {
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jobId: args.jobId,
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scriptId: args.scriptId,
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replaceVars: args.replaceVars,
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scriptHash: args.scriptHash,
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dispatchTime: args.dispatchTime
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};
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//dbg('jObj args is ' + JSON.stringify(jObj), sessionid);
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var sObj = getScriptFromCache(jObj.scriptId);
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//dbg('sobj = ' + JSON.stringify(sObj) + ', shash = ' + jObj.scriptHash, sessionid);
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if ((sObj == null) ||( sObj.contentHash != jObj.scriptHash)) {
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// Get from the server, then run
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//dbg('Getting and caching script '+ jObj.scriptId, sessionid);
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mesh.SendCommand({ 'action': 'scripttask', 'task': 'get', 'scriptId': jObj.scriptId, 'sessionid': sessionid });
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pendingDownload.push(jObj);
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} else {
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// Ready to run
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runScript(sObj, jObj, sessionid);
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}
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break;
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case 'set':
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var sObj = args.script;
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cacheScript(sObj);
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var setRun = [];
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if (pendingDownload.length) {
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pendingDownload.forEach(function (pd, k) {
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if ((pd.scriptId == sObj._id) && (pd.scriptHash == sObj.contentHash)) {
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if (setRun.indexOf(pd) === -1) {
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runScript(sObj, pd, sessionid);
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setRun.push(pd);
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}
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pendingDownload.remove(k);
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}
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});
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}
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break;
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case 'clear':
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clearScriptCache();
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mesh.SendCommand({ 'action': 'scripttask', 'task': 'clear', 'sessionid': sessionid });
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return 'Cache cleared. All pending tasks cleared.';
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case 'clearcache':
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clearScriptCache();
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return 'The script cache has been cleared';
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case 'debug':
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debug_flag = (debug_flag) ? false : true;
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var str = (debug_flag) ? 'on' : 'off';
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return 'Debugging is now ' + str;
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case 'pending':
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var ret = '';
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if (pendingDownload.length == 0) return "No jobs pending script download";
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pendingDownload.forEach(function (pd, k) {
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ret += 'Task ' + k + ': ' + 'TaskID: ' + pd.jobId + ' ScriptID: ' + pd.scriptId;
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});
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return ret;
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default:
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if (sessionid == null) return;
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if (args['_'][0] == null) { return 'Supported task commands: pending, trigger, clear, clearcache, debug'; }
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return 'Unknown action: ' + args['_'][0] + ' with data ' + JSON.stringify(args);
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}
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}
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function finalizeJob(job, retVal, errVal, sessionid) {
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if (errVal != null && errVal.stack != null) errVal = errVal.stack;
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runningJobs.remove(runningJobs.indexOf(job.jobId));
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if (typeof runningJobPIDs[job.jobId] != 'undefined') delete runningJobPIDs[job.jobId];
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mesh.SendCommand({
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'action': 'scripttask',
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'task': 'complete',
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'jobId': job.jobId,
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'scriptId': job.scriptId,
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'retVal': retVal,
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'errVal': errVal,
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'dispatchTime': job.dispatchTime, // Include original run time (long running tasks could have tried a re-send)
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'sessionid': sessionid
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});
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}
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//@TODO Test powershell on *nix devices with and without powershell installed
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function runPowerShell(sObj, jObj, sessionid) {
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if (process.platform != 'win32') return runPowerShellNonWin(sObj, jObj);
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const fs = require('fs');
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var rand = Math.random().toString(32).replace('0.', '');
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var oName = 'st' + rand + '.txt';
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var pName = 'st' + rand + '.ps1';
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var pwshout = '', pwsherr = '', cancontinue = false;
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try {
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fs.writeFileSync(pName, sObj.content);
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var outstr = '', errstr = '';
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var child = require('child_process').execFile(process.env['windir'] + '\\system32\\WindowsPowerShell\\v1.0\\powershell.exe', ['-NoLogo']);
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child.xxsessionid = sessionid;
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child.stderr.on('data', function (chunk) { errstr += chunk; });
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child.stdout.on('data', function (chunk) { });
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runningJobPIDs[jObj.jobId] = child.pid;
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child.stdin.write('.\\' + pName + ' | Out-File ' + oName + ' -Encoding UTF8\r\n');
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child.on('exit', function (procRetVal, procRetSignal) {
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dbg('Exiting with ' + procRetVal + ', Signal: ' + procRetSignal);
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if (errstr != '') {
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finalizeJob(jObj, null, errstr, this.xxsessionid);
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try {
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fs.unlinkSync(oName);
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fs.unlinkSync(pName);
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} catch (e) { dbg('Could not unlink files, error was: ' + e, this.xxsessionid); }
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return;
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}
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if (procRetVal == 1) {
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finalizeJob(jObj, null, 'Process terminated unexpectedly.', this.xxsessionid);
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try {
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fs.unlinkSync(oName);
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fs.unlinkSync(pName);
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} catch (e) { dbg('Could not unlink files, error was: ' + e, this.xxsessionid); }
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return;
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}
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try {
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outstr = fs.readFileSync(oName, 'utf8').toString();
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} catch (e) { outstr = (procRetVal) ? 'Failure' : 'Success'; }
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if (outstr) {
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//outstr = outstr.replace(/[^\x20-\x7E]/g, '');
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try { outstr = outstr.trim(); } catch (e) { }
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} else {
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outstr = (procRetVal) ? 'Failure' : 'Success';
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}
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dbg('Output is: ' + outstr, this.xxsessionid);
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finalizeJob(jObj, outstr, this.xxsessionid);
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try {
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fs.unlinkSync(oName);
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fs.unlinkSync(pName);
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} catch (e) { }
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});
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child.stdin.write('exit\r\n');
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//child.waitExit(); // this was causing the event loop to stall on long-running scripts, switched to '.on exit'
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} catch (e) {
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dbg('Error block was (PowerShell): ' + e, sessionid);
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finalizeJob(jObj, null, e, sessionid);
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}
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}
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function runPowerShellNonWin(sObj, jObj, sessionid) {
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const fs = require('fs');
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var rand = Math.random().toString(32).replace('0.', '');
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var path = '';
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var pathTests = [
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'/usr/local/mesh',
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'/tmp',
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'/usr/local/mesh_services/meshagent',
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'/var/tmp'
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];
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pathTests.forEach(function (p) {
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if (path == '' && fs.existsSync(p)) { path = p; }
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});
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dbg('Path chosen is: ' + path, sessionid);
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path = path + '/';
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var oName = 'st' + rand + '.txt';
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var pName = 'st' + rand + '.ps1';
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var pwshout = '', pwsherr = '', cancontinue = false;
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try {
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var childp = require('child_process').execFile('/bin/sh', ['sh']);
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childp.stderr.on('data', function (chunk) { pwsherr += chunk; });
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childp.stdout.on('data', function (chunk) { pwshout += chunk; });
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childp.stdin.write('which pwsh' + '\n');
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childp.stdin.write('exit\n');
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childp.waitExit();
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} catch (e) { finalizeJob(jObj, null, "Couldn't determine pwsh in env: " + e, sessionid); }
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if (pwsherr != '') {
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finalizeJob(jObj, null, "PowerShell env determination error: " + pwsherr, sessionid);
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return;
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}
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if (pwshout.trim() != '') {
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cancontinue = true;
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}
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if (cancontinue === false) { finalizeJob(jObj, null, "PowerShell is not installed"); return; }
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try {
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fs.writeFileSync(path + pName, '#!' + pwshout + '\n' + sObj.content.split('\r\n').join('\n').split('\r').join('\n'));
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var outstr = '', errstr = '';
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var child = require('child_process').execFile('/bin/sh', ['sh']);
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child.xxsessionid = sessionid;
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child.stderr.on('data', function (chunk) { errstr += chunk; });
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child.stdout.on('data', function (chunk) { });
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runningJobPIDs[jObj.jobId] = child.pid;
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child.stdin.write('cd ' + path + '\n');
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child.stdin.write('chmod a+x ' + pName + '\n');
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child.stdin.write('./' + pName + ' > ' + oName + '\n');
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child.on('exit', function (procRetVal, procRetSignal) {
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if (errstr != '') {
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finalizeJob(jObj, null, errstr);
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try {
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fs.unlinkSync(path + oName);
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fs.unlinkSync(path + pName);
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} catch (e) { dbg('Could not unlink files, error was: ' + e + ' for path ' + path, this.xxsessionid); }
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return;
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}
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if (procRetVal == 1) {
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finalizeJob(jObj, null, 'Process terminated unexpectedly.');
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try {
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fs.unlinkSync(path + oName);
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fs.unlinkSync(path + pName);
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} catch (e) { dbg('Could not unlink files1, error was: ' + e + ' for path ' + path, this.xxsessionid); }
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return;
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}
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try {
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outstr = fs.readFileSync(path + oName, 'utf8').toString();
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} catch (e) { outstr = (procRetVal) ? 'Failure' : 'Success'; }
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if (outstr) {
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//outstr = outstr.replace(/[^\x20-\x7E]/g, '');
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try { outstr = outstr.trim(); } catch (e) { }
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} else {
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outstr = (procRetVal) ? 'Failure' : 'Success';
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}
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dbg('Output is: ' + outstr);
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finalizeJob(jObj, outstr);
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try {
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fs.unlinkSync(path + oName);
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fs.unlinkSync(path + pName);
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} catch (e) { dbg('Could not unlink files2, error was: ' + e + ' for path ' + path, this.xxsessionid); }
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});
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child.stdin.write('exit\n');
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} catch (e) {
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dbg('Error block was (PowerShellNonWin): ' + e, sessionid);
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finalizeJob(jObj, null, e, sessionid);
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}
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}
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function runBat(sObj, jObj, sessionid) {
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if (process.platform != 'win32') { finalizeJob(jObj, null, 'Platform not supported.', sessionid); return; }
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const fs = require('fs');
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var rand = Math.random().toString(32).replace('0.', '');
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var oName = 'st' + rand + '.txt';
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var pName = 'st' + rand + '.bat';
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try {
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fs.writeFileSync(pName, sObj.content);
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var outstr = '', errstr = '';
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var child = require('child_process').execFile(process.env['windir'] + '\\system32\\cmd.exe');
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child.xxsessionid = sessionid;
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child.stderr.on('data', function (chunk) { errstr += chunk; });
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child.stdout.on('data', function (chunk) { });
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runningJobPIDs[jObj.jobId] = child.pid;
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child.stdin.write(pName + ' > ' + oName + '\r\n');
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child.stdin.write('exit\r\n');
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child.on('exit', function (procRetVal, procRetSignal) {
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if (errstr != '') {
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try {
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fs.unlinkSync(oName);
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fs.unlinkSync(pName);
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} catch (e) { dbg('Could not unlink files, error was: ' + e, this.xxsessionid); }
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finalizeJob(jObj, null, errstr, this.xxsessionid);
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return;
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}
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if (procRetVal == 1) {
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try {
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fs.unlinkSync(oName);
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fs.unlinkSync(pName);
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} catch (e) { dbg('Could not unlink files, error was: ' + e, this.xxsessionid); }
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finalizeJob(jObj, null, 'Process terminated unexpectedly.', this.xxsessionid);
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return;
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}
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try {
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outstr = fs.readFileSync(oName, 'utf8').toString();
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} catch (e) { outstr = (procRetVal) ? 'Failure' : 'Success'; }
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if (outstr) {
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//outstr = outstr.replace(/[^\x20-\x7E]/g, '');
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try { outstr = outstr.trim(); } catch (e) { }
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} else {
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outstr = (procRetVal) ? 'Failure' : 'Success';
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}
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dbg('Output is: ' + outstr);
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try {
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fs.unlinkSync(oName);
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fs.unlinkSync(pName);
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} catch (e) { dbg('Could not unlink files, error was: ' + e, this.xxsessionid); }
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finalizeJob(jObj, outstr, null, this.xxsessionid);
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});
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} catch (e) {
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dbg('Error block was (BAT): ' + e, sessionid);
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finalizeJob(jObj, null, e, sessionid);
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}
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}
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function runBash(sObj, jObj, sessionid) {
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if (process.platform == 'win32') {
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finalizeJob(jObj, null, 'Platform not supported.', sessionid);
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return;
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}
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//dbg('proc is ' + JSON.stringify(process));
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const fs = require('fs');
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var path = '';
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var pathTests = [
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'/usr/local/mesh',
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'/tmp',
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'/usr/local/mesh_services/meshagent',
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'/var/tmp'
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];
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pathTests.forEach(function (p) {
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if (path == '' && fs.existsSync(p)) { path = p; }
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});
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dbg('Path chosen is: ' + path, sessionid);
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path = path + '/';
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//var child = require('child_process');
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//child.execFile(process.env['windir'] + '\\system32\\cmd.exe', ['/c', 'RunDll32.exe user32.dll,LockWorkStation'], { type: 1 });
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var rand = Math.random().toString(32).replace('0.', '');
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var oName = 'st' + rand + '.txt';
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var pName = 'st' + rand + '.sh';
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try {
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fs.writeFileSync(path + pName, sObj.content);
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var outstr = '', errstr = '';
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var child = require('child_process').execFile('/bin/sh', ['sh']);
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child.xxsessionid = sessionid;
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child.stderr.on('data', function (chunk) { errstr += chunk; });
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child.stdout.on('data', function (chunk) { });
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runningJobPIDs[jObj.jobId] = child.pid;
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child.stdin.write('cd ' + path + '\n');
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child.stdin.write('chmod a+x ' + pName + '\n');
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child.stdin.write('./' + pName + ' > ' + oName + '\n');
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child.stdin.write('exit\n');
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child.on('exit', function (procRetVal, procRetSignal) {
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if (errstr != '') {
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try {
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fs.unlinkSync(path + oName);
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fs.unlinkSync(path + pName);
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} catch (e) { dbg('Could not unlink files, error was: ' + e + ' for path ' + path, this.xxsessionid); }
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finalizeJob(jObj, null, errstr, this.xxsessionid);
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return;
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}
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if (procRetVal == 1) {
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try {
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fs.unlinkSync(path + oName);
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fs.unlinkSync(path + pName);
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} catch (e) { dbg('Could not unlink files1, error was: ' + e + ' for path ' + path, this.xxsessionid); }
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finalizeJob(jObj, null, 'Process terminated unexpectedly.', this.xxsessionid);
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return;
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}
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try {
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outstr = fs.readFileSync(path + oName, 'utf8').toString();
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} catch (e) { outstr = (procRetVal) ? 'Failure' : 'Success'; }
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if (outstr) {
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//outstr = outstr.replace(/[^\x20-\x7E]/g, '');
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try { outstr = outstr.trim(); } catch (e) { }
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} else {
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outstr = (procRetVal) ? 'Failure' : 'Success';
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}
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dbg('Output is: ' + outstr);
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try {
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fs.unlinkSync(path + oName);
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fs.unlinkSync(path + pName);
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} catch (e) { dbg('Could not unlink files2, error was: ' + e + ' for path ' + path, this.xxsessionid); }
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finalizeJob(jObj, outstr, null, this.xxsessionid);
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});
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} catch (e) {
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dbg('Error block was (bash): ' + e, sessionid);
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finalizeJob(jObj, null, e, sessionid);
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}
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}
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function jobIsRunning(jObj) {
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if (runningJobs.indexOf(jObj.jobId) === -1) return false;
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return true;
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}
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function runScript(sObj, jObj, sessionid) {
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// get current processes and clean running jobs if they are no longer running (computer fell asleep, user caused process to stop, etc.)
|
||||
if ((process.platform != 'linux') && runningJobs.length) { // linux throws errors here in the meshagent for some reason
|
||||
require('process-manager').getProcesses(function (plist) {
|
||||
dbg('Got process list', sessionid);
|
||||
dbg('There are currently ' + runningJobs.length + ' running jobs.', sessionid);
|
||||
if (runningJobs.length) {
|
||||
runningJobs.forEach(function (jobId, idx) {
|
||||
dbg('Checking for running job: ' + jobId + ' with PID ' + runningJobPIDs[jobId], sessionid);
|
||||
if (typeof plist[runningJobPIDs[jobId]] == 'undefined' || typeof plist[runningJobPIDs[jobId]].cmd != 'string') {
|
||||
dbg('Found job with no process. Removing running status.', sessionid);
|
||||
delete runningJobPIDs[jobId];
|
||||
runningJobs.remove(runningJobs.indexOf(idx));
|
||||
//dbg('RunningJobs: ' + JSON.stringify(runningJobs));
|
||||
//dbg('RunningJobsPIDs: ' + JSON.stringify(runningJobPIDs));
|
||||
}
|
||||
});
|
||||
}
|
||||
});
|
||||
}
|
||||
if (jobIsRunning(jObj)) { dbg('Job already running job id [' + jObj.jobId + ']. Skipping.', sessionid); return; }
|
||||
if (jObj.replaceVars != null) {
|
||||
Object.getOwnPropertyNames(jObj.replaceVars).forEach(function (key) {
|
||||
var val = jObj.replaceVars[key];
|
||||
sObj.content = sObj.content.replace(new RegExp('#' + key + '#', 'g'), val);
|
||||
dbg('replacing var ' + key + ' with ' + val, sessionid);
|
||||
});
|
||||
sObj.content = sObj.content.replace(new RegExp('#(.*?)#', 'g'), 'VAR_NOT_FOUND');
|
||||
}
|
||||
runningJobs.push(jObj.jobId);
|
||||
dbg('Running Script ' + sObj._id, sessionid);
|
||||
switch (sObj.filetype) {
|
||||
case 'ps1': runPowerShell(sObj, jObj, sessionid); break;
|
||||
case 'bat': runBat(sObj, jObj, sessionid); break;
|
||||
case 'bash': runBash(sObj, jObj, sessionid); break;
|
||||
default: dbg('Unknown filetype: ' + sObj.filetype, sessionid);
|
||||
break;
|
||||
}
|
||||
}
|
||||
function getScriptFromCache(id) {
|
||||
var script = db.Get('scriptTask_script_' + id);
|
||||
if (script == '' || script == null) return null;
|
||||
try { script = JSON.parse(script); } catch (e) { return null; }
|
||||
return script;
|
||||
}
|
||||
function cacheScript(sObj) {
|
||||
db.Put('scriptTask_script_' + sObj._id, sObj);
|
||||
}
|
||||
function clearScriptCache() {
|
||||
db.Keys.forEach(function (k) {
|
||||
if (k.indexOf('scriptTask_script_') === 0) {
|
||||
db.Put(k, null);
|
||||
db.Delete(k);
|
||||
}
|
||||
});
|
||||
}
|
||||
|
||||
function sendConsoleText(text, sessionid) {
|
||||
require('MeshAgent').SendCommand({ 'action': 'msg', 'type': 'console', 'value': (typeof text == 'string') ? text : JSON.stringify(text), 'sessionid': sessionid });
|
||||
}
|
||||
|
||||
module.exports = { processCommand: processCommand };
|
||||
Loading…
Reference in New Issue
Block a user