Minetrack/app.js

192 lines
5.6 KiB
JavaScript
Raw Normal View History

var server = require('./lib/server');
var ping = require('./lib/ping');
2015-11-02 05:46:24 +00:00
var logger = require('./lib/logger');
var mojang = require('./lib/mojang_services');
2015-11-09 00:34:17 +00:00
var util = require('./lib/util');
2015-12-11 04:06:27 +00:00
var db = require('./lib/database');
2015-11-02 05:46:24 +00:00
var config = require('./config.json');
var networkHistory = [];
var connectedClients = 0;
2015-12-18 07:45:38 +00:00
var graphData = [];
var lastGraphPush = [];
2015-11-02 06:57:30 +00:00
function pingAll() {
2015-11-02 05:21:42 +00:00
var servers = config.servers;
2015-11-02 05:21:42 +00:00
for (var i = 0; i < servers.length; i++) {
// Make sure we lock our scope.
(function(network) {
ping.ping(network.ip, network.port, network.type, config.rates.connectTimeout, function(err, res) {
// Handle our ping results, if it succeeded.
if (err) {
logger.log('error', 'Failed to ping ' + network.ip + ': ' + JSON.stringify(err));
}
// If we have favicon override specified, use it.
if (res && config.faviconOverride && config.faviconOverride[network.name]) {
res.favicon = config.faviconOverride[network.name];
}
var networkSnapshot = {
info: {
name: network.name,
timestamp: util.getCurrentTimeMs()
}
};
2015-11-24 23:24:17 +00:00
if (res) {
networkSnapshot.result = res;
} else if (err) {
2015-11-24 23:24:17 +00:00
networkSnapshot.error = err;
}
server.io.sockets.emit('update', networkSnapshot);
// Log our response.
if (!networkHistory[network.name]) {
networkHistory[network.name] = [];
}
var _networkHistory = networkHistory[network.name];
2015-11-09 00:34:17 +00:00
// Remove our previous data that we don't need anymore.
for (var i = 0; i < _networkHistory.length; i++) {
2015-11-09 00:34:17 +00:00
delete _networkHistory[i].info;
if (_networkHistory[i].result) {
delete _networkHistory[i].result.favicon;
}
}
_networkHistory.push({
2015-11-02 06:57:30 +00:00
error: err,
2015-11-09 00:34:17 +00:00
result: res,
timestamp: util.getCurrentTimeMs(),
info: {
ip: network.ip,
port: network.port,
type: network.type,
name: network.name
}
});
// Make sure we never log too much.
2015-11-09 00:34:17 +00:00
if (_networkHistory.length > 72) { // 60/2.5 = 24, so 24 is one minute
_networkHistory.shift();
}
2015-12-11 04:06:27 +00:00
// Log it to the database if needed.
if (config.logToDatabase) {
db.log(network.ip, util.getCurrentTimeMs(), res ? res.players.online : 0);
}
2015-12-18 07:45:38 +00:00
// Push it to our graphs.
var timeMs = util.getCurrentTimeMs();
2015-12-18 08:17:39 +00:00
// The same mechanic from trimUselessPings is seen here.
// If we dropped the ping, then to avoid destroying the graph, ignore it.
// However if it's been too long since the last successful ping, we'll send it anyways.
if (!lastGraphPush[network.ip] || (timeMs - lastGraphPush[network.ip] >= 60 * 1000 && res) || timeMs - lastGraphPush[network.ip] >= 70 * 1000) {
2015-12-18 07:45:38 +00:00
lastGraphPush[network.ip] = timeMs;
// Don't have too much data!
if (graphData[network.ip].length >= 24 * 60) {
graphData[network.ip].shift();
}
graphData[network.ip].push([timeMs, res ? res.players.online : 0]);
// Send the update.
server.io.sockets.emit('updateHistoryGraph', {
ip: network.ip,
players: (res ? res.players.online : 0),
timestamp: timeMs
});
}
});
2015-11-02 05:21:42 +00:00
})(servers[i]);
}
2015-11-02 06:57:30 +00:00
}
// Start our main loop that does everything.
function startMainLoop() {
2015-11-24 23:24:17 +00:00
util.setIntervalNoDelay(pingAll, config.rates.pingAll);
2015-11-24 23:24:17 +00:00
util.setIntervalNoDelay(function() {
mojang.update(config.rates.mojangStatusTimeout);
server.io.sockets.emit('updateMojangServices', mojang.toMessage());
}, config.rates.upateMojangStatus);
}
2015-12-19 00:10:58 +00:00
function startServices() {
server.start(function() {
// Track how many people are currently connected.
server.io.on('connect', function(client) {
// If we haven't sent out at least one round of pings, disconnect them for now.
if (Object.keys(networkHistory).length < config.servers.length) {
client.disconnect();
2015-12-18 07:45:38 +00:00
2015-12-19 00:10:58 +00:00
return;
}
2015-12-18 07:45:38 +00:00
2015-12-19 00:10:58 +00:00
// We're good to connect them!
connectedClients += 1;
2015-12-18 07:45:38 +00:00
2015-12-19 00:10:58 +00:00
logger.log('info', 'Accepted connection: %s, total clients: %d', client.request.connection.remoteAddress, connectedClients);
2015-12-11 04:06:27 +00:00
2015-12-19 00:10:58 +00:00
setTimeout(function() {
// Send them our previous data, so they have somewhere to start.
client.emit('updateMojangServices', mojang.toMessage());
2015-11-09 00:34:17 +00:00
2015-12-19 00:10:58 +00:00
// Remap our associative array into just an array.
var networkHistoryKeys = Object.keys(networkHistory);
networkHistoryKeys.sort();
// Send each individually, this should look cleaner than waiting for one big array to transfer.
for (var i = 0; i < networkHistoryKeys.length; i++) {
client.emit('add', [networkHistory[networkHistoryKeys[i]]]);
}
}, 1);
2015-12-19 00:10:58 +00:00
// Attach our listeners.
2015-12-19 01:04:30 +00:00
client.on('disconnect', function() {
2015-12-19 00:10:58 +00:00
connectedClients -= 1;
2015-11-02 05:46:24 +00:00
2015-12-19 00:10:58 +00:00
logger.log('info', 'Client disconnected, total clients: %d', connectedClients);
});
2015-12-19 01:04:30 +00:00
client.on('requestHistoryGraph', function() {
// Send them the big 24h graph.
client.emit('historyGraph', graphData);
});
2015-12-19 01:00:57 +00:00
});
2015-12-19 00:10:58 +00:00
startMainLoop();
});
}
logger.log('info', 'Booting, please wait...');
2015-12-19 00:10:58 +00:00
if (config.logToDatabase) {
// Setup our database.
db.setup();
2015-12-19 00:10:58 +00:00
var timestamp = util.getCurrentTimeMs();
2015-12-18 07:45:38 +00:00
2015-12-19 00:10:58 +00:00
db.queryPings(24 * 60 * 60 * 1000, function(data) {
graphData = util.convertPingsToGraph(data);
2015-12-19 00:10:58 +00:00
logger.log('info', 'Queried and parsed ping history in %sms', util.getCurrentTimeMs() - timestamp);
2015-11-02 06:01:04 +00:00
2015-12-19 00:10:58 +00:00
startServices();
});
2015-12-19 00:10:58 +00:00
} else {
logger.warn('Database logging is not enabled. You can enable it by setting "logToDatabase" to true in config.json. This requires sqlite3 to be installed.');
2015-11-02 06:57:30 +00:00
2015-12-19 00:10:58 +00:00
startServices();
}