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https://github.com/Ylianst/MeshCentral.git
synced 2024-08-16 04:00:28 +03:00
Improved agent coredump processing.
This commit is contained in:
Ylian Saint-Hilaire
parent
6aae0332e0
commit
ed45f7b4a7
@ -1140,8 +1140,12 @@ function createMeshCore(agent) {
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case 'coredump':
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// Set the current agent coredump situation.
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if (data.value === true) {
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// TODO: This replace() below is not ideal, would be better to remove the .exe at the end instead of replace.
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process.coreDumpLocation = (process.platform == 'win32') ? (process.execPath.replace('.exe', '.dmp')) : (process.execPath + '.dmp');
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if (process.platform == 'win32') {
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// TODO: This replace() below is not ideal, would be better to remove the .exe at the end instead of replace.
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process.coreDumpLocation = process.execPath.replace('.exe', '.dmp');
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} else {
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process.coreDumpLocation = (process.cwd() != '//') ? (process.cwd() + 'core') : null;
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}
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} else if (data.value === false) {
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process.coreDumpLocation = null;
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}
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@ -1151,8 +1155,18 @@ function createMeshCore(agent) {
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var r = { action: 'getcoredump', value: (process.coreDumpLocation != null) };
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var coreDumpPath = null;
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if (process.platform == 'win32') { coreDumpPath = process.coreDumpLocation; } else { coreDumpPath = (process.cwd() != '//') ? fs.existsSync(process.cwd() + 'core') : null; }
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if ((coreDumpPath != null) && (fs.existsSync(coreDumpPath))) { r.exists = (db.Get('CoreDumpTime') != require('fs').statSync(coreDumpPath).mtime); }
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if (r.exists == true) { r.agenthashhex = getSHA384FileHash(process.execPath).toString('hex'); }
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if ((coreDumpPath != null) && (fs.existsSync(coreDumpPath))) {
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try {
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var coredate = fs.statSync(coreDumpPath).mtime;
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var coretime = new Date(coredate).getTime();
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var agenttime = new Date(fs.statSync(process.execPath).mtime).getTime();
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if (coretime > agenttime) { r.exists = (db.Get('CoreDumpTime') != coredate); }
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} catch (ex) { }
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}
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if (r.exists == true) {
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r.agenthashhex = getSHA384FileHash(process.execPath).toString('hex'); // Hash of current agent
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r.corehashhex = getSHA384FileHash(coreDumpPath).toString('hex'); // Hash of core dump file
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}
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mesh.SendCommand(JSON.stringify(r));
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default:
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// Unknown action, ignore it.
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@ -2662,9 +2676,17 @@ function createMeshCore(agent) {
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response = 'coredump is: ' + ((process.coreDumpLocation == null) ? 'off' : 'on');
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if (process.coreDumpLocation != null) {
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if (process.platform == 'win32') {
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if (fs.existsSync(process.coreDumpLocation)) { response += '\r\n CoreDump present at: ' + process.coreDumpLocation; }
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if (fs.existsSync(process.coreDumpLocation)) {
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response += '\r\n CoreDump present at: ' + process.coreDumpLocation;
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response += '\r\n CoreDump Time: ' + new Date(fs.statSync(process.coreDumpLocation).mtime).getTime();
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response += '\r\n Agent Time : ' + new Date(fs.statSync(process.execPath).mtime).getTime();
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}
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} else {
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if ((process.cwd() != '//') && fs.existsSync(process.cwd() + 'core')) { response += '\r\n CoreDump present at: ' + process.cwd() + 'core'; }
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if ((process.cwd() != '//') && fs.existsSync(process.cwd() + 'core')) {
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response += '\r\n CoreDump present at: ' + process.cwd() + 'core';
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response += '\r\n CoreDump Time: ' + new Date(fs.statSync(process.cwd() + 'core').mtime).getTime();
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response += '\r\n Agent Time : ' + new Date(fs.statSync(process.execPath).mtime).getTime();
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}
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}
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}
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break;
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@ -1395,7 +1395,7 @@ module.exports.CreateMeshAgent = function (parent, db, ws, req, args, domain) {
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// Get the core dump uploaded to the server.
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parent.lastCoreDumpRequest = Date.now();
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obj.RequestCoreDump(command.agenthashhex);
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obj.RequestCoreDump(command.agenthashhex, command.corehashhex);
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});
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});
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}
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@ -1668,7 +1668,7 @@ module.exports.CreateMeshAgent = function (parent, db, ws, req, args, domain) {
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}
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// Request that the core dump file on this agent be uploaded to the server
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obj.RequestCoreDump = function (agenthashhex) {
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obj.RequestCoreDump = function (agenthashhex, corehashhex) {
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if (agenthashhex.length > 16) { agenthashhex = agenthashhex.substring(0, 16); }
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const cookie = parent.parent.encodeCookie({ a: 'aft', b: 'coredump', c: obj.agentInfo.agentId + '-' + agenthashhex + '-' + obj.nodeid + '.dmp' }, parent.parent.loginCookieEncryptionKey);
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obj.send('{"action":"msg","type":"tunnel","value":"*/' + (((domain.dns == null) && (domain.id != '')) ? (domain.id + '/') : '') + 'agenttransfer.ashx?c=' + cookie + '","rights":"4294967295"}');
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22
webserver.js
22
webserver.js
@ -3753,7 +3753,7 @@ module.exports.CreateWebServer = function (parent, db, args, certificates) {
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onFileOpen.xws.send(JSON.stringify({ action: 'download', sub: 'startack', id: onFileOpen.xws.xid, ack: 1 })); // Ask for a directory (test)
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};
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callback.xws = this;
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obj.fs.open(this.xfilepath, 'w', callback)
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obj.fs.open(this.xfilepath + '.part', 'w', callback);
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break;
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}
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}
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@ -3769,7 +3769,11 @@ module.exports.CreateWebServer = function (parent, db, args, certificates) {
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if (onFileDataWritten.xflags & 1) {
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// End of file
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parent.debug('web', "Completed downloads of agent dumpfile, " + onFileDataWritten.xws.xfilelen + " bytes.");
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if (onFileDataWritten.xws.xfile) { try { obj.fs.close(onFileDataWritten.xws.xfile, function (err) { }); } catch (ex) { } }
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if (onFileDataWritten.xws.xfile) {
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obj.fs.close(onFileDataWritten.xws.xfile, function (err) { });
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obj.fs.rename(onFileDataWritten.xws.xfilepath + '.part', onFileDataWritten.xws.xfilepath, function (err) { });
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onFileDataWritten.xws.xfile = null;
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}
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onFileDataWritten.xws.send(JSON.stringify({ action: 'markcoredump' })); // Ask to delete the core dump file
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try { onFileDataWritten.xws.close(); } catch (ex) { }
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} else {
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@ -3785,7 +3789,11 @@ module.exports.CreateWebServer = function (parent, db, args, certificates) {
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if (flags & 1) {
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// End of file
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parent.debug('web', "Completed downloads of agent dumpfile, " + this.xfilelen + " bytes.");
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if (this.xfile) { try { obj.fs.close(this.xfile, function (err) { }); } catch (ex) { } }
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if (this.xfile) {
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obj.fs.close(this.xfile, function (err) { });
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obj.fs.rename(this.xfilepath + '.part', this.xfilepath, function (err) { });
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this.xfile = null;
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}
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this.send(JSON.stringify({ action: 'markcoredump' })); // Ask to delete the core dump file
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try { this.close(); } catch (ex) { }
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} else {
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@ -3800,7 +3808,12 @@ module.exports.CreateWebServer = function (parent, db, args, certificates) {
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ws.on('error', function (err) { console.log('Agent file transfer server error from ' + req.clientIp + ', ' + err.toString().split('\r')[0] + '.'); });
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// If closed, do nothing
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ws.on('close', function (req) { });
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ws.on('close', function (req) {
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if (this.xfile) {
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obj.fs.close(this.xfile, function (err) { });
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obj.fs.unlink(this.xfilepath + '.part', function (err) { }); // Remove a partial file
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}
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});
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}
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// Handle the web socket echo request, just echo back the data sent
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@ -5853,6 +5866,7 @@ module.exports.CreateWebServer = function (parent, db, args, certificates) {
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obj.GetNodeRights = function (user, mesh, nodeid) {
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if ((user == null) || (mesh == null) || (nodeid == null)) { return 0; }
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if (typeof user == 'string') { user = obj.users[user]; }
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if (user == null) { return 0; }
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var r = obj.GetMeshRights(user, mesh);
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if (r == 0xFFFFFFFF) return r;
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