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Added mesh agent crash dump management web page.

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This commit is contained in:
Ylian Saint-Hilaire 2020-09-17 15:39:33 -07:00
parent 2ba5f27ffa
commit 53f3c418dc
4 changed files with 85 additions and 11 deletions
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1
meshcentral-config-schema.json
View File

@ -40,6 +40,7 @@
"agentAliasDNS": { "type": "string", "format": "hostname", "description": "When set, specified the DNS name used by agents to connect to the agent-only port." },
"agentPortTls": { "type": "boolean", "default": true, "description": "Indicates if the agent-only port must perform TLS, this should be set to false if TLS is performed in front of this server." },
"agentCoreDump": { "type": "boolean", "default": false, "description": "Automatically activates and transfers any agent crash dump files to the server in meshcentral-data/coredumps." },
"agentCoreDumpUsers": { "type": "array", "description": "List of non-administrator users that have access to mesh agent crash dumps." },
"exactPorts": { "type": "boolean", "default": false },
"allowLoginToken": { "type": "boolean", "default": false },
"allowFraming": { "type": "boolean", "default": false, "description": "When enabled, the MeshCentral web site can be embedded within another website's iframe." },

2
meshdesktopmultiplex.js
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@ -486,7 +486,7 @@ function CreateDesktopMultiplexor(parent, domain, nodeid, func) {
var cmd = Buffer.alloc(10);
cmd.writeUInt16BE(5, 0); // Command 5, compression
cmd.writeUInt16BE(10, 2); // Command size, 10 bytes long
cmd[4] = 1; // Image type, 1 = JPEN
cmd[4] = 1; // Image type, 1 = JPEG
cmd[5] = obj.imageCompression; // Image compression level
cmd.writeUInt16BE(obj.imageScaling, 6); // Scaling level
cmd.writeUInt16BE(obj.imageFrameRate, 8); // Frame rate timer

12
public/scripts/agent-desktop-0.0.2.js
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@ -100,7 +100,7 @@ var CreateAgentRemoteDesktop = function (canvasid, scrolldiv) {
}
obj.send = function (x) {
if (obj.debugmode > 1) { console.log("KSend(" + x.length + "): " + rstr2hex(x)); }
if (obj.debugmode > 2) { console.log("KSend(" + x.length + "): " + rstr2hex(x)); }
if (obj.parent != null) { obj.parent.send(x); }
}
@ -156,13 +156,13 @@ var CreateAgentRemoteDesktop = function (canvasid, scrolldiv) {
}
obj.SendUnPause = function () {
//obj.Debug("SendUnPause");
if (obj.debugmode > 1) { console.log("SendUnPause"); }
//obj.xxStateChange(3);
obj.send(String.fromCharCode(0x00, 0x08, 0x00, 0x05, 0x00));
}
obj.SendPause = function () {
//obj.Debug("SendPause");
if (obj.debugmode > 1) { console.log("SendPause"); }
//obj.xxStateChange(2);
obj.send(String.fromCharCode(0x00, 0x08, 0x00, 0x05, 0x01));
}
@ -196,7 +196,7 @@ var CreateAgentRemoteDesktop = function (canvasid, scrolldiv) {
obj.ProcessBinaryCommand = function (cmd, cmdsize, view) {
var X, Y;
if ((cmd == 3) || (cmd == 4) || (cmd == 7)) { X = (view[4] << 8) + view[5]; Y = (view[6] << 8) + view[7]; }
//console.log('CMD', cmd, cmdsize, X, Y);
if (obj.debugmode > 2) { console.log('CMD', cmd, cmdsize, X, Y); }
// Record the command if needed
if (obj.recordedData != null) {
@ -250,7 +250,7 @@ var CreateAgentRemoteDesktop = function (canvasid, scrolldiv) {
break;
case 17: // MNG_KVM_MESSAGE
var str = String.fromCharCode.apply(null, data.slice(4));
obj.Debug("Got KVM Message: " + str);
console.log("Got KVM Message: " + str);
if (obj.onMessage != null) obj.onMessage(str, obj);
break;
case 65: // Alert
@ -502,7 +502,7 @@ var CreateAgentRemoteDesktop = function (canvasid, scrolldiv) {
if (obj.onScreenSizeChange != null) obj.onScreenSizeChange(obj, obj.ScreenWidth, obj.ScreenHeight, obj.CanvasId);
}
obj.FirstDraw = false;
//obj.Debug("onResize: " + obj.ScreenWidth + " x " + obj.ScreenHeight);
if (obj.debugmode > 1) { console.log("onResize: " + obj.ScreenWidth + " x " + obj.ScreenHeight); }
}
obj.xxMouseInputGrab = false;

81
webserver.js
View File

@ -4265,19 +4265,92 @@ module.exports.CreateWebServer = function (parent, db, args, certificates) {
if (domain == null) return;
if ((domain.loginkey != null) && (domain.loginkey.indexOf(req.query.key) == -1)) { res.sendStatus(404); return; } // Check 3FA URL key
if ((req.session == null) || (req.session.userid == null)) { res.sendStatus(404); return; }
var user = null, coreDumpsAllowed = false;
if (typeof req.session.userid == 'string') { user = obj.users[req.session.userid]; }
if (user == null) { res.sendStatus(404); return; }
// Check if this user has access to agent core dumps
if ((obj.parent.config.settings.agentcoredump === true) && ((user.siteadmin == 0xFFFFFFFF) || ((Array.isArray(obj.parent.config.settings.agentcoredumpusers)) && (obj.parent.config.settings.agentcoredumpusers.indexOf(user._id) >= 0)))) {
coreDumpsAllowed = true;
if ((req.query.dldump != null) && obj.common.IsFilenameValid(req.query.dldump)) {
// Download a dump file
var dumpFile = obj.path.join(parent.datapath, '..', 'meshcentral-coredumps', req.query.dldump);
if (obj.fs.existsSync(dumpFile)) {
res.set({ 'Cache-Control': 'no-cache, no-store, must-revalidate', 'Pragma': 'no-cache', 'Expires': '0', 'Content-Type': 'application/zip', 'Content-Disposition': 'attachment; filename="' + req.query.dldump + '' });
res.sendFile(dumpFile); return;
} else {
res.sendStatus(404); return;
}
}
if ((req.query.deldump != null) && obj.common.IsFilenameValid(req.query.deldump)) {
// Delete a dump file
try { obj.fs.unlinkSync(obj.path.join(parent.datapath, '..', 'meshcentral-coredumps', req.query.deldump)); } catch (ex) { console.log(ex); }
}
if ((req.query.dumps != null) || (req.query.deldump != null)) {
// Send list of agent core dumps
var response = '<html><head><title>Mesh Agents Core Dumps</title><style>table,th,td { border:1px solid black;border-collapse:collapse;padding:3px; }</style></head><body style=overflow:auto><table>';
response += '<tr style="background-color:lightgray"><th>ID</th><th>Upload Date</th><th>Description</th><th>Current</th><th>Dump</th><th>Size</th><th>Agent</th><th>Agent SHA384</th><th>NodeID</th><th></th></tr>';
var coreDumpPath = obj.path.join(parent.datapath, '..', 'meshcentral-coredumps');
if (obj.fs.existsSync(coreDumpPath)) {
var files = obj.fs.readdirSync(coreDumpPath);
var coredumps = [];
for (var i in files) {
var file = files[i];
if (file.endsWith('.dmp')) {
var fileSplit = file.substring(0, file.length - 4).split('-');
if (fileSplit.length == 3) {
var agentid = parseInt(fileSplit[0]);
if ((isNaN(agentid) == false) && (obj.parent.meshAgentBinaries[agentid] != null)) {
var agentinfo = obj.parent.meshAgentBinaries[agentid];
var filestats = obj.fs.statSync(obj.path.join(parent.datapath, '..', 'meshcentral-coredumps', file));
coredumps.push({
fileSplit: fileSplit,
agentinfo: agentinfo,
filestats: filestats,
currentAgent: agentinfo.hashhex.startsWith(fileSplit[1].toLowerCase()),
downloadUrl: req.originalUrl.split('?')[0] + '?dldump=' + file + (req.query.key ? ('&key=' + req.query.key) : ''),
deleteUrl: req.originalUrl.split('?')[0] + '?deldump=' + file + (req.query.key ? ('&key=' + req.query.key) : ''),
agentUrl: req.originalUrl.split('?')[0] + '?id=' + agentinfo.id + (req.query.key ? ('&key=' + req.query.key) : ''),
time: new Date(filestats.ctime)
});
}
}
}
}
coredumps.sort(function (a, b) { if (a.time > b.time) return -1; if (a.time < b.time) return 1; return 0; });
for (var i in coredumps) {
var d = coredumps[i];
response += '<tr><td>' + d.agentinfo.id + '</td><td>' + d.time.toDateString().split(' ').join('&nbsp;') + '</td><td>' + d.agentinfo.desc.split(' ').join('&nbsp;') + '</td>';
response += '<td style=text-align:center>' + d.currentAgent + '</td><td><a download href="' + d.downloadUrl + '">Download</a></td><td style=text-align:right>' + d.filestats.size + '</td>';
if (d.currentAgent) { response += '<td><a download href="' + d.agentUrl + '">Download</a></td>'; } else { response += '<td></td>'; }
response += '<td>' + d.fileSplit[1].toLowerCase() + '</td><td>' + d.fileSplit[2] + '</td><td><a href="' + d.deleteUrl + '">Delete</a></td></tr>';
}
}
response += '</table><a href="' + req.originalUrl.split('?')[0] + (req.query.key ? ('?key=' + req.query.key) : '') + '">Mesh Agents</a></body></html>';
res.send(response);
return;
}
}
// Send a list of available mesh agents
var response = '<html><head><title>Mesh Agents</title><style>table,th,td { border:1px solid black;border-collapse:collapse;padding:3px; }</style></head><body><table>';
var response = '<html><head><title>Mesh Agents</title><style>table,th,td { border:1px solid black;border-collapse:collapse;padding:3px; }</style></head><body style=overflow:auto><table>';
response += '<tr style="background-color:lightgray"><th>ID</th><th>Description</th><th>Link</th><th>Size</th><th>SHA384</th><th>MeshCmd</th></tr>';
var originalUrl = req.originalUrl.split('?')[0];
for (var agentid in obj.parent.meshAgentBinaries) {
if (agentid >= 10000) continue;
var agentinfo = obj.parent.meshAgentBinaries[agentid];
var originalUrl = req.originalUrl.split('?')[0];
response += '<tr><td>' + agentinfo.id + '</td><td>' + agentinfo.desc + '</td>';
response += '<tr><td>' + agentinfo.id + '</td><td>' + agentinfo.desc.split(' ').join('&nbsp;') + '</td>';
response += '<td><a download href="' + originalUrl + '?id=' + agentinfo.id + (req.query.key ? ('&key=' + req.query.key) : '') + '">' + agentinfo.rname + '</a></td>';
response += '<td>' + agentinfo.size + '</td><td>' + agentinfo.hashhex + '</td>';
response += '<td><a download href="' + originalUrl + '?meshcmd=' + agentinfo.id + (req.query.key ? ('&key=' + req.query.key) : '') + '">' + agentinfo.rname.replace('agent', 'cmd') + '</a></td></tr>';
}
response += '</table></body></html>';
response += '</table>';
if (coreDumpsAllowed) { response += '<a href="' + originalUrl + '?dumps=1' + (req.query.key ? ('&key=' + req.query.key) : '') + '">MeshAgent Crash Dumps</a>'; }
response += '</body></html>';
res.send(response);
}
};