Ylianst/MeshCentral
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Merge pull request #555 from ryanblenis/plugin

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Plugin Extensibility
This commit is contained in:
Ylian Saint-Hilaire 2019-10-10 10:12:40 -07:00 committed by GitHub
commit 5bc3da5bf6
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7 changed files with 289 additions and 5 deletions
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53
agents/meshcore.min.js vendored
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@ -831,6 +831,19 @@ function createMeshCore(agent)
}
case 'ping': { mesh.SendCommand('{"action":"pong"}'); break; }
case 'pong': { break; }
case 'plugin': {
if (typeof data.pluginaction == 'string') {
try {
MeshServerLog('Plugin called', data);
/* Not yet implmented
require(data.plugin.name).serveraction(data);*/
} catch(e) {
MeshServerLog('Error calling plugin', data);
}
}
break;
}
default:
// Unknown action, ignore it.
break;
@ -1479,6 +1492,26 @@ function createMeshCore(agent)
// Unknown action, ignore it.
break;
}
} else if (this.httprequest.protocol == 7) { // plugin data exchange
var cmd = null;
try { cmd = JSON.parse(data); } catch (e) { };
if (cmd == null) { return; }
if ((cmd.ctrlChannel == '102938') || ((cmd.type == 'offer') && (cmd.sdp != null))) { onTunnelControlData(cmd, this); return; } // If this is control data, handle it now.
if (cmd.action == undefined) { return; }
switch (cmd.action) {
case 'plugin': {
try {
require(cmd.plugin).consoleaction(cmd, null, null, this);
} catch (e) { throw e; }
break;
}
default: {
// probably shouldn't happen, but just in case this feature is expanded
}
}
}
//sendConsoleText("Got tunnel #" + this.httprequest.index + " data: " + data, this.httprequest.sessionid);
}
@ -1684,7 +1717,7 @@ function createMeshCore(agent)
var response = null;
switch (cmd) {
case 'help': { // Displays available commands
var fin = '', f = '', availcommands = 'help,info,osinfo,args,print,type,dbget,dbset,dbcompact,eval,parseuri,httpget,nwslist,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';
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';
availcommands = availcommands.split(',').sort();
while (availcommands.length > 0) {
if (f.length > 100) { fin += (f + ',\r\n'); f = ''; }
@ -2339,6 +2372,22 @@ function createMeshCore(agent)
}
break;
}
case 'plugin': {
if (typeof args['_'][0] == 'string') {
try {
// pass off the action to the plugin
// for plugin creators, you'll want to have a plugindir/modules_meshcore/plugin.js
// to control the output / actions here.
response = require(args['_'][0]).consoleaction(args, rights, sessionid, mesh);
} catch(e) {
response = 'There was an error in the plugin (' + e + ')';
}
} else {
response = 'Proper usage: plugin [pluginName] [args].';
}
break;
}
default: { // This is an unknown command, return an error message
response = 'Unknown command \"' + cmd + '\", type \"help\" for list of avaialble commands.';
break;
@ -2451,6 +2500,8 @@ function createMeshCore(agent)
//if (process.platform == 'win32') { try { pr = require('win-info').pendingReboot(); } catch (ex) { pr = null; } } // Pending reboot
if ((meshCoreObj.av == null) || (JSON.stringify(meshCoreObj.av) != JSON.stringify(av))) { meshCoreObj.av = av; mesh.SendCommand(meshCoreObj); }
}
// TODO: add plugin hook here
}

12
meshagent.js
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@ -1277,6 +1277,18 @@ module.exports.CreateMeshAgent = function (parent, db, ws, req, args, domain) {
});
break;
}
case 'plugin': {
if (typeof command.plugin == 'string') {
try {
var pluginHandler = require('./pluginHandler.js').pluginHandler(parent.parent);
pluginHandler.plugins[command.plugin].serveraction(command, obj, parent);
} catch (e) {
console.log('Error loading plugin handler ('+ e + ')');
}
}
break;
}
default: {
parent.agentStats.unknownAgentActionCount++;
console.log('Unknown agent action (' + obj.remoteaddrport + '): ' + command.action + '.');

8
meshcentral.js
View File

@ -865,6 +865,11 @@ function CreateMeshCentralServer(config, args) {
// Dispatch an event that the server is now running
obj.DispatchEvent(['*'], obj, { etype: 'server', action: 'started', msg: 'Server started' });
obj.pluginHandler = require("./pluginHandler.js").pluginHandler(obj);
// Plugin hook. Need to run something at server startup? This is the place.
obj.pluginHandler.callHook("server_startup");
// Load the login cookie encryption key from the database if allowed
if ((obj.config) && (obj.config.settings) && (obj.config.settings.allowlogintoken == true)) {
obj.db.Get('LoginCookieEncryptionKey', function (err, docs) {
@ -1347,7 +1352,8 @@ function CreateMeshCentralServer(config, args) {
}
}
}
obj.pluginHandler = require("./pluginHandler.js").pluginHandler(obj);
obj.pluginHandler.addMeshCoreModules(modulesAdd);
// Merge the cores and compute the hashes
for (var i in modulesAdd) {
if ((i == 'windows-recovery') || (i == 'linux-recovery')) {

11
meshuser.js
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@ -3004,6 +3004,17 @@ module.exports.CreateMeshUser = function (parent, db, ws, req, args, domain, use
}
break;
}
case 'plugin': {
command.userid = user._id;
if (command.routeToNode === true) {
routeCommandToNode(command);
} else {
// TODO
}
break;
}
default: {
// Unknown user action
console.log('Unknown action from user ' + user.name + ': ' + command.action + '.');

166
pluginHandler.js Normal file
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@ -0,0 +1,166 @@
/**
* @description MeshCentral plugin module
* @author Ryan Blenis
* @copyright
* @license Apache-2.0
* @version v0.0.1
*/
/*xjslint node: true */
/*xjslint plusplus: true */
/*xjslint maxlen: 256 */
/*jshint node: true */
/*jshint strict: false */
/*jshint esversion: 6 */
"use strict";
module.exports.pluginHandler = function (parent) {
var obj = {};
obj.fs = require('fs');
obj.path = require('path');
obj.parent = parent;
obj.pluginPath = obj.parent.path.join(obj.parent.datapath, 'plugins');
obj.plugins = {};
obj.exports = {};
try {
obj.enabled = obj.parent.config.settings.plugins.enabled;
obj.loadList = obj.parent.config.settings.plugins.list;
} catch (e) { // Config file options not present, disable self
obj.enabled = false;
obj.loadList = {};
console.log('Plugin options not added to the config file. Plugins disabled. Please see the documentation.');
}
if (obj.enabled) {
obj.loadList.forEach(function(plugin, index) {
if (obj.fs.existsSync(obj.pluginPath + '/' + plugin)) {
try {
obj.plugins[plugin] = require(obj.pluginPath + '/' + plugin + '/' + plugin + '.js')[plugin](obj);
obj.exports[plugin] = obj.plugins[plugin].exports;
} catch (e) {
console.log("Error loading plugin: " + plugin + " (" + e + "). It has been disabled.", e.stack);
}
}
});
}
obj.prepExports = function() {
var str = 'function() {\r\n';
str += ' var obj = {};\r\n';
for (const p of Object.keys(obj.plugins)) {
str += ' obj.'+ p +' = {};\r\n';
for (const l of Object.values(obj.exports[p])) {
str += ' obj.'+ p +'.'+ l + ' = '+ obj.plugins[p][l].toString()+'\r\n';
}
}
str += 'obj.enabled = '+ obj.enabled +';\r\n';
str += `obj.onDeviceRefeshEnd = function(nodeid, panel, refresh, event) {
for (const p of Object.keys(obj)) {
if (typeof obj[p].onDeviceRefreshEnd == 'function') {
obj[p].onDeviceRefreshEnd(nodeid, panel, refresh, event);
}
}
};
obj.registerPluginTab = function(pluginRegInfo) {
var d = pluginRegInfo();
if (!Q(d.tabId)) {
QA('p19headers', '<span onclick="return pluginHandler.callPluginPage(\\''+d.tabId+'\\');">'+d.tabTitle+'</span>');
}
};
obj.callPluginPage = function(id) {
var pages = Q('p19pages').querySelectorAll("#p19pages>div");
for (const i of pages) {
i.style.display = 'none';
}
QV(id, true);
};
return obj; };`;
return str;
}
obj.callHook = function(hookName, ...args) {
for (var p in obj.plugins) {
if (typeof obj.plugins[p][hookName] == 'function') {
try {
obj.plugins[p][hookName](args);
} catch (e) {
console.log('Error ocurred while running plugin hook' + p + ':' + hookName + ' (' + e + ')');
}
}
}
};
obj.addMeshCoreModules = function(modulesAdd) {
if (obj.enabled !== true) return;
for (var plugin in obj.plugins) {
var moduleDirPath = null;
var modulesDir = null;
//if (obj.args.minifycore !== false) { try { moduleDirPath = obj.path.join(obj.pluginPath, 'modules_meshcore_min'); modulesDir = obj.fs.readdirSync(moduleDirPath); } catch (e) { } } // Favor minified modules if present.
if (modulesDir == null) { try { moduleDirPath = obj.path.join(obj.pluginPath, plugin + '/modules_meshcore'); modulesDir = obj.fs.readdirSync(moduleDirPath); } catch (e) { } } // Use non-minified mofules.
if (modulesDir != null) {
for (var i in modulesDir) {
if (modulesDir[i].toLowerCase().endsWith('.js')) {
var moduleName = modulesDir[i].substring(0, modulesDir[i].length - 3);
if (moduleName.endsWith('.min')) { moduleName = moduleName.substring(0, moduleName.length - 4); } // Remove the ".min" for ".min.js" files.
var moduleData = [ 'try { addModule("', moduleName, '", "', obj.parent.escapeCodeString(obj.fs.readFileSync(obj.path.join(moduleDirPath, modulesDir[i])).toString('binary')), '"); addedModules.push("', moduleName, '"); } catch (e) { }\r\n' ];
// Merge this module
// NOTE: "smbios" module makes some non-AI Linux segfault, only include for IA platforms.
if (moduleName.startsWith('amt-') || (moduleName == 'smbios')) {
// Add to IA / Intel AMT cores only
modulesAdd['windows-amt'].push(...moduleData);
modulesAdd['linux-amt'].push(...moduleData);
} else if (moduleName.startsWith('win-')) {
// Add to Windows cores only
modulesAdd['windows-amt'].push(...moduleData);
} else if (moduleName.startsWith('linux-')) {
// Add to Linux cores only
modulesAdd['linux-amt'].push(...moduleData);
modulesAdd['linux-noamt'].push(...moduleData);
} else {
// Add to all cores
modulesAdd['windows-amt'].push(...moduleData);
modulesAdd['linux-amt'].push(...moduleData);
modulesAdd['linux-noamt'].push(...moduleData);
}
// Merge this module to recovery modules if needed
if (modulesAdd['windows-recovery'] != null) {
if ((moduleName == 'win-console') || (moduleName == 'win-message-pump') || (moduleName == 'win-terminal')) {
modulesAdd['windows-recovery'].push(...moduleData);
}
}
// Merge this module to agent recovery modules if needed
if (modulesAdd['windows-agentrecovery'] != null) {
if ((moduleName == 'win-console') || (moduleName == 'win-message-pump') || (moduleName == 'win-terminal')) {
modulesAdd['windows-agentrecovery'].push(...moduleData);
}
}
}
}
}
}
};
obj.deviceViewPanel = function() {
var panel = {};
for (var p in obj.plugins) {
if (typeof obj.plugins[p][hookName] == 'function') {
try {
panel[p].header = obj.plugins[p].on_device_header();
panel[p].content = obj.plugins[p].on_device_page();
} catch (e) {
console.log('Error ocurred while getting plugin views ' + p + ':' + ' (' + e + ')');
}
}
}
return panel;
}
return obj;
};

38
views/default.handlebars
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@ -122,6 +122,7 @@
<td tabindex=0 id=MainDevInfo class="topbar_td style3x" onclick=go(17,event) onkeypress="if (event.key == 'Enter') go(17)">Details</td>
<td tabindex=0 id=MainDevAmt class="topbar_td style3x" onclick=go(14,event) onkeypress="if (event.key == 'Enter') go(14)">Intel&reg; AMT</td>
<td tabindex=0 id=MainDevConsole class="topbar_td style3x" onclick=go(15,event) onkeypress="if (event.key == 'Enter') go(15)">Console</td>
<td tabindex=0 id=MainDevPlugins class="topbar_td style3x" onclick=go(19,event) onkeypress="if (event.key == 'Enter') go(19)">Plugins</td>
<td class="topbar_td_end style3">&nbsp;</td>
</tr>
</table>
@ -847,6 +848,26 @@
</div>
<div id=p41events style=""></div>
</div>
<div id=p19 style="display:none">
<h1>Plugins - <span id=p19deviceName></span></h1>
<style>
#p19headers {
padding-right: 7px;
padding-bottom: 10px;
font-weight: bold;
border-bottom: 1px dotted blue;
}
#p19headers > span:nth-child(n+2) {
border-left: 1px solid black;
}
#p19headers > span {
padding-left: 4px;
padding-right: 4px;
}
</style>
<div id="p19headers"></div>
<div id=p19pages></div>
</div>
<br id="column_l_bottomgap" />
</div>
<div id="footer">
@ -1014,6 +1035,8 @@
var nightMode = (getstore('_nightMode', '0') == '1');
var sessionActivity = Date.now();
var updateSessionTimer = null;
var pluginHandlerBuilder = {{{pluginHandler}}};
var pluginHandler = new pluginHandlerBuilder();
// Console Message Display Timers
var p11DeskConsoleMsgTimer = null;
@ -2305,6 +2328,16 @@
QH('p0span', message.msg);
break;
}
case 'plugin': {
if (typeof message.plugin == 'string') {
try {
pluginHandler[message.plugin][message.method](server, message);
} catch (e) {
console.log('Error loading plugin handler ('+ e + ')');
}
}
break;
}
default:
//console.log('Unknown message.action', message.action);
break;
@ -4145,6 +4178,7 @@
QH('p15deviceName', 'Console - ' + nname);
QH('p16deviceName', nname);
QH('p17deviceName', nname);
QH('p19deviceName', nname);
// Node attributes
var x = '<table style=width:100%>';
@ -4400,6 +4434,8 @@
p11clearConsoleMsg();
p12clearConsoleMsg();
p13clearConsoleMsg();
pluginHandler.onDeviceRefeshEnd(nodeid, panel, refresh, event);
}
setupDesktop(); // Always refresh the desktop, even if we are on the same device, we need to do some canvas switching.
if (!panel) panel = 10;
@ -9141,7 +9177,7 @@
QV('MeshSubMenuSpan', x >= 20 && x < 30);
QV('UserSubMenuSpan', x >= 30 && x < 40);
QV('ServerSubMenuSpan', x == 6 || x == 115 || x == 40 || x == 41);
var panels = { 10: 'MainDev', 11: 'MainDevDesktop', 12: 'MainDevTerminal', 13: 'MainDevFiles', 14: 'MainDevAmt', 15: 'MainDevConsole', 16: 'MainDevEvents', 17: 'MainDevInfo', 20: 'MeshGeneral', 30: 'UserGeneral', 31: 'UserEvents', 6: 'ServerGeneral', 40: 'ServerStats', 41: 'ServerTrace', 115: 'ServerConsole' };
var panels = { 10: 'MainDev', 11: 'MainDevDesktop', 12: 'MainDevTerminal', 13: 'MainDevFiles', 14: 'MainDevAmt', 15: 'MainDevConsole', 16: 'MainDevEvents', 17: 'MainDevInfo', 20: 'MeshGeneral', 30: 'UserGeneral', 31: 'UserEvents', 6: 'ServerGeneral', 40: 'ServerStats', 41: 'ServerTrace', 19: 'Plugins', 115: 'ServerConsole' };
for (var i in panels) {
QC(panels[i]).remove('style3x');
QC(panels[i]).remove('style3sel');

4
webserver.js
View File

@ -1518,11 +1518,13 @@ module.exports.CreateWebServer = function (parent, db, args, certificates) {
// Clean up the U2F challenge if needed
if (req.session.u2fchallenge) { delete req.session.u2fchallenge; };
var pluginHandler = require('./pluginHandler.js').pluginHandler(parent);
// Fetch the web state
parent.debug('web', 'handleRootRequestEx: success.');
obj.db.Get('ws' + user._id, function (err, states) {
var webstate = (states.length == 1) ? states[0].state : '';
res.render(getRenderPage('default', req), { authCookie: authCookie, viewmode: viewmode, currentNode: currentNode, logoutControl: logoutcontrol, title: domain.title, title2: domain.title2, extitle: encodeURIComponent(domain.title), extitle2: encodeURIComponent(domain.title2), domainurl: domain.url, domain: domain.id, debuglevel: parent.debugLevel, serverDnsName: obj.getWebServerName(domain), serverRedirPort: args.redirport, serverPublicPort: httpsPort, noServerBackup: (args.noserverbackup == 1 ? 1 : 0), features: features, sessiontime: args.sessiontime, mpspass: args.mpspass, passRequirements: passRequirements, webcerthash: Buffer.from(obj.webCertificateFullHashs[domain.id], 'binary').toString('base64').replace(/\+/g, '@').replace(/\//g, '$'), footer: (domain.footer == null) ? '' : domain.footer, webstate: encodeURIComponent(webstate) });
res.render(getRenderPage('default', req), { authCookie: authCookie, viewmode: viewmode, currentNode: currentNode, logoutControl: logoutcontrol, title: domain.title, title2: domain.title2, extitle: encodeURIComponent(domain.title), extitle2: encodeURIComponent(domain.title2), domainurl: domain.url, domain: domain.id, debuglevel: parent.debugLevel, serverDnsName: obj.getWebServerName(domain), serverRedirPort: args.redirport, serverPublicPort: httpsPort, noServerBackup: (args.noserverbackup == 1 ? 1 : 0), features: features, sessiontime: args.sessiontime, mpspass: args.mpspass, passRequirements: passRequirements, webcerthash: Buffer.from(obj.webCertificateFullHashs[domain.id], 'binary').toString('base64').replace(/\+/g, '@').replace(/\//g, '$'), footer: (domain.footer == null) ? '' : domain.footer, webstate: encodeURIComponent(webstate), pluginHandler: pluginHandler.prepExports() });
});
} else {
// Send back the login application