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Added agent trouble detection on the server.

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This commit is contained in:
Ylian Saint-Hilaire 2019-01-22 19:34:55 -08:00
parent b5fb7ad3de
commit cd09f64b47
3 changed files with 30 additions and 1 deletions
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24
meshagent.js
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@ -326,6 +326,13 @@ module.exports.CreateMeshAgent = function (parent, db, ws, req, args, domain) {
if (obj.nodeid != null) {
//console.log('Agent disconnect ' + obj.nodeid + ' (' + obj.remoteaddrport + ') id=' + obj.agentInfo.agentId);
obj.parent.parent.debug(1, 'Agent disconnect ' + obj.nodeid + ' (' + obj.remoteaddrport + ') id=' + obj.agentInfo.agentId);
// Log the agent disconnection
if (obj.parent.wsagentsDisconnections[obj.nodeid] == null) {
obj.parent.wsagentsDisconnections[obj.nodeid] = 1;
} else {
obj.parent.wsagentsDisconnections[obj.nodeid] = ++obj.parent.wsagentsDisconnections[obj.nodeid];
}
}
obj.close(0);
});
@ -411,9 +418,25 @@ module.exports.CreateMeshAgent = function (parent, db, ws, req, args, domain) {
delete obj.pendingCompleteAgentConnection;
obj.authenticated = 2;
// Check how many times this agent disconnected in the last few minutes.
var disconnectCount = obj.parent.wsagentsDisconnections[obj.nodeid];
if (disconnectCount > 6) {
console.log('Agent in big trouble: NodeId=' + obj.nodeid + ', IP=' + obj.remoteaddrport + ', Agent=' + obj.agentInfo.agentId + '.');
// TODO: Log or do something to recover?
return;
}
// Command 4, inform mesh agent that it's authenticated.
obj.send(obj.common.ShortToStr(4));
if (disconnectCount > 4) {
// Too many disconnections, this agent has issues. Just clear the core.
obj.send(obj.common.ShortToStr(10) + obj.common.ShortToStr(0));
console.log('Agent in trouble: NodeId=' + obj.nodeid + ', IP=' + obj.remoteaddrport + ', Agent=' + obj.agentInfo.agentId + '.');
// TODO: Log or do something to recover?
return;
}
// Check if we need to make an native update check
obj.agentExeInfo = obj.parent.parent.meshAgentBinaries[obj.agentInfo.agentId];
const corename = obj.parent.parent.meshAgentsArchitectureNumbers[obj.agentInfo.agentId].core;
@ -468,6 +491,7 @@ module.exports.CreateMeshAgent = function (parent, db, ws, req, args, domain) {
}
});
}
});
}

2
package.json
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@ -1,6 +1,6 @@
{
"name": "meshcentral",
"version": "0.2.6-t",
"version": "0.2.6-v",
"keywords": [
"Remote Management",
"Intel AMT",

5
webserver.js
View File

@ -140,6 +140,8 @@ module.exports.CreateWebServer = function (parent, db, args, certificates) {
// Main lists
obj.wsagents = {};
obj.wsagentsDisconnections = {};
obj.wsagentsDisconnectionsTimer = null;
obj.wssessions = {}; // UserId --> Array Of Sessions
obj.wssessions2 = {}; // "UserId + SessionRnd" --> Session (Note that the SessionId is the UserId + / + SessionRnd)
obj.wsPeerSessions = {}; // ServerId --> Array Of "UserId + SessionRnd"
@ -2004,6 +2006,9 @@ module.exports.CreateWebServer = function (parent, db, args, certificates) {
// Indicates to ExpressJS that the public folder should be used to serve static files.
obj.app.use(url, obj.express.static(obj.path.join(__dirname, 'public')));
// Start regular disconnection list flush every 2 minutes.
obj.wsagentsDisconnectionsTimer = setInterval(function () { obj.wsagentsDisconnections = {}; }, 120000);
}
// Start server on a free port