Découpage en module

2025-07-22 23:28:26 +02:00 · 2020-10-17 19:32:32 +02:00
parent 14fdcc39c2
commit 47ea30b234
12 changed files with 3197 additions and 200 deletions
--- a/9
+++ b/9
@@ -1,7 +1,8 @@
-FROM alpine:latest
-RUN apk add nodejs npm --no-cache
-COPY . .
+FROM node:current-alpine3.12
+WORKDIR /data
 RUN npm install --only=prod
+RUN npm install nodemon -g

-CMD ["node", "index.js"]
+# CMD ["node", "index.js"]
+CMD ["nodemon", "index.js"]
 EXPOSE 9591
--- a/index.js
+++ b/index.js
@@ -1,218 +1,68 @@
-const express = require('express');
-const { connect, TimeoutError } = require('working-rcon');
-const prometheus = require('prom-client');
-
-const { Gauge } = prometheus;
+import express from 'express';
+import { connect } from 'working-rcon';
+import module from './modules/index.js';

 const app = express();

-async function rconCommand(client, command) {
-	try {
-		return client.command(command);
-	} catch (err) {
-		if (err instanceof TimeoutError) {
-			console.error('request timed out');
-		} else {
-			throw err;
-		}
-	}
-	return null;
-}
-
-async function getMetamod(client) {
-	return rconCommand(client, 'meta');
-}
-
-function metamodRequest(response) {
-	if (response) {
-		const isEnabled = isValidResponse(response);
-		metamodEnabledGauge.set(isEnabled ? Number(1) : Number(0));
-	} else {
-		metamodEnabledGauge.set((Number(-1)));
-	}
-}
-
-async function getSourcemod(client) {
-	return rconCommand(client, 'sm');
-}
-
-function sourcemodRequest(response) {
-	if (response) {
-		const isEnabled = isValidResponse(response);
-		sourcemodEnabledGauge.set(isEnabled ? Number(1) : Number(0));
-	} else {
-		sourcemodEnabledGauge.set((Number(-1)));
-	}
-}
-
-async function getSourcepython(client) {
-	return rconCommand(client, 'sp');
-}
-
-function sourcepythonRequest(response) {
-	if (response) {
-		const isEnabled = isValidResponse(response);
-		sourcepythonEnabledGauge.set(isEnabled ? Number(1) : Number(0));
-	} else {
-		sourcepythonEnabledGauge.set(Number(-1));
-	}
-}
-
-function isValidResponse(response) {
-	return !response.includes('Unknown');
-}
-
-function gameRequest(response, game) {
-	if (game === 'csgo') {
-		status.set((Number(1)));
-		cpu.set((Number(response[0])));
-		netin.set((Number(response[1])));
-		netout.set((Number(response[2])));
-		uptime.set((Number(response[3])));
-		maps.set((Number(response[4])));
-		fps.set((Number(response[5])));
-		players.set((Number(response[6])));
-		svms.set((Number(response[7])));
-		varms.set((Number(response[8])));
-		tick.set((Number(response[9])));
-	} else {
-		status.set((Number(1)));
-		cpu.set((Number(response[0])));
-		netin.set((Number(response[1])));
-		netout.set((Number(response[2])));
-		uptime.set((Number(response[3])));
-		maps.set((Number(response[4])));
-		fps.set((Number(response[5])));
-		players.set((Number(response[6])));
-	}
-}
-
-async function getStats(client, game) {
-	const stats = await rconCommand(client, 'stats');
-	let statusLine = null;
-	if (stats) {
-		statusLine = stats.split(/\r?\n/);
-	} else {
-		return null;
-	}
-	if (game === 'csgo') {
-		statusLine = stats.split(/\r?\n/);
-		statusLine.pop();
-	}
-	statusLine.shift();
-	statusLine = statusLine[0].split(/\s+/);
-	return statusLine;
-}
-const csgoRegistry = new prometheus.Registry();
-const gmodRegistry = new prometheus.Registry();
-const cstrikeRegistry = new prometheus.Registry();
-
-// Global metrics, used accross all Source gameservers
-const status = new Gauge({ name: 'srcds_status', help: "The server's status, 0 = offline/bad password, 1 = online", registers: [csgoRegistry, gmodRegistry, cstrikeRegistry] });
-const cpu = new Gauge({ name: 'srcds_cpu', help: 'Probably the priority level of the srcds executable from an operating system point of view (0 - No priority, 10 - biggest priority)', registers: [csgoRegistry, gmodRegistry, cstrikeRegistry] });
-const netin = new Gauge({ name: 'srcds_netin', help: 'Incoming bandwidth, in kbps, received by the server', registers: [csgoRegistry, gmodRegistry, cstrikeRegistry] });
-const netout = new Gauge({ name: 'srcds_netout', help: 'Incoming bandwidth, in kbps, sent by the server', registers: [csgoRegistry, gmodRegistry, cstrikeRegistry] });
-const uptime = new Gauge({ name: 'srcds_uptime', help: "The server's uptime, in minutes", registers: [csgoRegistry, gmodRegistry, cstrikeRegistry] });
-const maps = new Gauge({ name: 'srcds_maps', help: "The number of maps played on that server since it's start", registers: [csgoRegistry, gmodRegistry, cstrikeRegistry] });
-const fps = new Gauge({ name: 'srcds_fps', help: "The server's tick (10 fps on idle, 64 fps for 64 ticks server, 128 fps for 128 ticks..)", registers: [csgoRegistry, gmodRegistry, cstrikeRegistry] });
-const players = new Gauge({ name: 'srcds_players', help: 'The number of real players actually connected on the server', registers: [csgoRegistry, gmodRegistry, cstrikeRegistry] });
-
-// CSGO metrics
-const svms = new Gauge({ name: 'srcds_svms', help: 'ms per sim frame', registers: [csgoRegistry] });
-const varms = new Gauge({ name: 'srcds_varms', help: 'ms variance', registers: [csgoRegistry] });
-const tick = new Gauge({ name: 'srcds_tick', help: 'The time in MS per tick', registers: [csgoRegistry] });
-
-// Metamod metrics
-const metamodEnabledGauge = new Gauge({ name: 'srcds_metamod_enabled', help: 'Is metamod enabled', registers: [csgoRegistry] });
-
-// Sourcemod metrics
-const sourcemodEnabledGauge = new Gauge({ name: 'srcds_sourcemod_enabled', help: 'Is sourcemod enabled', registers: [csgoRegistry] });
-
-// SourcePython metrics
-const sourcepythonEnabledGauge = new Gauge({ name: 'srcds_sourcepython_enabled', help: 'Is sourcepython enabled', registers: [csgoRegistry] });
-
 app.get('/', (req, res) => {
-	res.send('use /metrics?ip=&lt;srcds ip&gt;&port=&lt;srcds port&gt;&password=&lt;rcon password&gt;&game=&lt;game&gt;&sm=&ltboolean&gt&meta=&ltboolean&gtsp=&ltboolean&gt to get data');
+	res.send('use /metrics?ip=&lt;srcds ip&gt;&port=&lt;srcds port&gt;&rconPassword=&lt;rcon password&gt;&game=&lt;game&gt;&sm=&ltboolean&gt&meta=&ltboolean&gtsp=&ltboolean&gt to get data');
 });

 app.get('/metrics', async (req, res) => {
-	const { ip } = req.query;
-	const { port } = req.query;
-	const { password } = req.query;
-	const { game } = req.query;
-	const metamod = req.query.metamod || false;
-	const sourcemod = req.query.sourcemod || false;
-	const sourcepython = req.query.sourcepython || false;
+	const config = {
+		ip: req.query.ip,
+		port: req.query.port,
+		game: req.query.game,
+		rconPassword: req.query.rconPassword,
+	};
+	config.metamod = req.query.metamod === 'true' || false;
+	config.sourcemod = req.query.sourcemod === 'true' || false;
+	config.sourcepython = req.query.sourcepython === 'true' || false;
+	config.tags = req.query.tags || [];

-	if (ip == null || port == null || password == null || game == null) {
-		res.send('Missing parameter, either IP, port, RCON password or game<br />use /metrics?ip=&lt;srcds ip&gt;&port=&lt;srcds port&gt;&password=&lt;rcon password&gt;&game=&lt;game&gt;&sm=<boolean>&meta=<boolean>sp=<boolean> to get data');
+	if (
+		config.ip == null
+		|| config.port == null
+		|| config.rconPassword == null
+		|| config.game == null
+	) {
+		res.send('Missing parameter');
 		return;
 	}

-	if (game !== 'csgo' && game !== 'gmod' && game !== 'cstrike') {
+	if (!['csgo', 'cstrike', 'gmod'].includes(config.game)) {
 		res.send('Incorrect game value, currently supported games are : csgo, gmod, cstrike');
 		return;
 	}

-	const client = await connect(ip, port, password, 5000);
-	const statsResponse = await getStats(client, game);
 	try {
-		if (metamod) {
-			const metamodResponse = await getMetamod(client);
-			metamodRequest(metamodResponse);
-		} else {
-			metamodRequest(null);
-		}
-		if (sourcemod) {
-			const sourcemodResponse = await getSourcemod(client);
-			sourcemodRequest(sourcemodResponse);
-		} else {
-			sourcemodRequest(null);
-		}
-		if (sourcepython) {
-			const sourcepythonResponse = await getSourcepython(client);
-			sourcepythonRequest(sourcepythonResponse);
-		} else {
-			sourcepythonRequest(null);
-		}
-
-		const defaultLabels = { server: `${ip}:${port}`, game };
-		gameRequest(statsResponse, game);
-		if (game === 'csgo') {
-			csgoRegistry.setDefaultLabels(defaultLabels);
-			res.end(csgoRegistry.metrics());
-		} else if (game === 'cstrike') {
-			cstrikeRegistry.setDefaultLabels(defaultLabels);
-			res.end(cstrikeRegistry.metrics());
-		} else if (game === 'gmod') {
-			gmodRegistry.setDefaultLabels(defaultLabels);
-			res.end(gmodRegistry.metrics());
-		}
+		const client = await connect(config.ip, config.port, config.rconPassword, 5000);
+		const response = await module.request(config, client);
+		await module.send(config, response, res);
+		await client.disconnect();
 	} catch (e) {
-		status.set((Number(0)));
-		cpu.set((Number(0)));
-		netin.set((Number(0)));
-		netout.set((Number(0)));
-		uptime.set((Number(0)));
-		maps.set((Number(0)));
-		fps.set((Number(0)));
-		players.set((Number(0)));
-		svms.set((Number(0)));
-		varms.set((Number(0)));
-		tick.set((Number(0)));
-		metamodEnabledGauge.set((Number(-1)));
-		sourcemodEnabledGauge.set((Number(-1)));
-		sourcepythonEnabledGauge.set((Number(-1)));
-
-		if (game === 'csgo') {
-			res.end(csgoRegistry.metrics());
-		} else if (game === 'gmod') {
-			res.end(gmodRegistry.metrics());
-		} else if (game === 'cstrike') {
-			res.end(cstrikeRegistry.metrics());
+		if (e.code === 'EHOSTUNREACH') {
+			console.error(`Unreachable host : ${e.address}:${e.port}`);
+		} else {
+			console.error(e);
 		}
+		// status.set((Number(0)));
+		// cpu.set((Number(0)));
+		// netin.set((Number(0)));
+		// netout.set((Number(0)));
+		// uptime.set((Number(0)));
+		// maps.set((Number(0)));
+		// fps.set((Number(0)));
+		// players.set((Number(0)));
+		// svms.set((Number(0)));
+		// varms.set((Number(0)));
+		// svMaxUpdateRate.set((Number(0)));
+		// metamodEnabledGauge.set((Number(-1)));
+		// sourcemodEnabledGauge.set((Number(-1)));
+		// sourcepythonEnabledGauge.set((Number(-1)));
+		// prepareData(ip, port, game, tags);
+		// sendData(game, res);
 	}
-	await client.disconnect();
 });

 app.listen(9591);
--- a/modules/game.js
+++ b/modules/game.js
@@ -0,0 +1,61 @@
+import utils from '../utils/utils.js';
+import metrics from './metrics.js';
+
+export default {
+	async requestStats(client, game) {
+		const stats = await utils.rconCommand(client, 'stats');
+		let statusLine = null;
+		if (stats) {
+			statusLine = stats.split(/\r?\n/);
+		} else {
+			return null;
+		}
+		if (game === 'csgo') {
+			statusLine = stats.split(/\r?\n/);
+			statusLine.pop();
+		}
+		statusLine.shift();
+		statusLine = statusLine[0].split(/\s+/);
+		return statusLine;
+	},
+	setStatsMetrics(response, game) {
+		if (game === 'csgo') {
+			metrics.status.set((Number(1)));
+			metrics.cpu.set((Number(response[0])));
+			metrics.netin.set((Number(response[1])));
+			metrics.netout.set((Number(response[2])));
+			metrics.uptime.set((Number(response[3])));
+			metrics.maps.set((Number(response[4])));
+			metrics.fps.set((Number(response[5])));
+			metrics.players.set((Number(response[6])));
+			metrics.svms.set((Number(response[7])));
+			metrics.varms.set((Number(response[8])));
+			metrics.svMaxUpdateRate.set((Number(response[9])));
+		} else {
+			metrics.status.set((Number(1)));
+			metrics.cpu.set((Number(response[0])));
+			metrics.netin.set((Number(response[1])));
+			metrics.netout.set((Number(response[2])));
+			metrics.uptime.set((Number(response[3])));
+			metrics.maps.set((Number(response[4])));
+			metrics.fps.set((Number(response[5])));
+			metrics.players.set((Number(response[6])));
+		}
+	},
+	async requeseInfo(client, game) {
+		if (game === 'csgo') {
+			return null;
+		}
+		const maxUpdateRate = await utils.rconCommand(client, 'sv_maxupdaterate');
+		return {
+			sv_maxupdaterate: maxUpdateRate,
+		};
+	},
+	setInfoMetrics(response, game) {
+		if (game !== 'csgo') {
+			const maxUpdateRate = utils.parseCvar(response.sv_maxupdaterate);
+			metrics.svMaxUpdateRate.set((Number(maxUpdateRate.value)));
+		}
+		return true;
+	},
+};
--- a/modules/index.js
+++ b/modules/index.js
@@ -0,0 +1,52 @@
+import metamod from './metamod.js';
+import sourcemod from './sourcemod.js';
+import sourcepython from './sourcepython.js';
+import registry from './registry.js';
+import game from './game.js';
+
+export default {
+	async request(config, client) {
+		let metamodResponse;
+		let sourcemodResponse;
+		let sourcepythonResponse;
+
+		const infoResponse = await game.requeseInfo(client, config.game);
+		const statsResponse = await game.requestStats(client, config.game);
+		if (config.metamod) {
+			metamodResponse = await metamod.request(client);
+		}
+		if (config.sourcemod) {
+			sourcemodResponse = await sourcemod.request(client);
+		}
+		if (config.sourcepython) {
+			sourcepythonResponse = await sourcepython.request(client);
+		}
+		return {
+			info: infoResponse,
+			stats: statsResponse,
+			metamod: metamodResponse,
+			sourcemod: sourcemodResponse,
+			sourcepython: sourcepythonResponse,
+		};
+	},
+
+	async send(config, response, res) {
+		metamod.setMetrics(response.metamod);
+		sourcemod.setMetrics(response.sourcemod);
+		sourcepython.setMetrics(response.sourcepython);
+		game.setStatsMetrics(response.stats, config.game);
+		game.setInfoMetrics(response.info, config.game);
+
+		registry.setDefaultLabels(
+			config.ip,
+			config.port,
+			config.game,
+			config.tags,
+			response.metamod,
+			response.sourcemod,
+			response.sourcepython,
+		);
+
+		registry.sendMetrics(config.game, res);
+	},
+};
--- a/modules/metamod.js
+++ b/modules/metamod.js
@@ -0,0 +1,17 @@
+import utils from '../utils/utils.js';
+import metrics from './metrics.js';
+
+export default {
+	async request(client) {
+		return utils.rconCommand(client, 'meta version');
+	},
+	setMetrics(response) {
+		if (response) {
+			const isEnabled = utils.isValidResponse(response);
+			const value = isEnabled ? Number(1) : Number(0);
+			metrics.metamodEnabled.set(value);
+		} else {
+			metrics.metamodEnabled.set((Number(-1)));
+		}
+	},
+};
--- a/modules/metrics.js
+++ b/modules/metrics.js
@@ -0,0 +1,26 @@
+import { Gauge } from 'prom-client';
+import registry from './registry.js';
+
+export default {
+	// Global metrics, used accross all Source gameservers
+	status: new Gauge({ name: 'srcds_status', help: "The server's status, 0 = offline/bad password, 1 = online", registers: registry.allGameMetrics }),
+	cpu: new Gauge({ name: 'srcds_cpu', help: 'Probably the priority level of the srcds executable from an operating system point of view (0 - No priority, 10 - biggest priority)', registers: registry.allGameMetrics }),
+	netin: new Gauge({ name: 'srcds_netin', help: 'Incoming bandwidth, in kbps, received by the server', registers: registry.allGameMetrics }),
+	netout: new Gauge({ name: 'srcds_netout', help: 'Incoming bandwidth, in kbps, sent by the server', registers: registry.allGameMetrics }),
+	uptime: new Gauge({ name: 'srcds_uptime', help: "The server's uptime, in minutes", registers: registry.allGameMetrics }),
+	maps: new Gauge({ name: 'srcds_maps', help: "The number of maps played on that server since it's start", registers: registry.allGameMetrics }),
+	fps: new Gauge({ name: 'srcds_fps', help: "The server's tick (10 fps on idle, 64 fps for 64 ticks server, 128 fps for 128 ticks..)", registers: registry.allGameMetrics }),
+	players: new Gauge({ name: 'srcds_players', help: 'The number of real players actually connected on the server', registers: registry.allGameMetrics }),
+	svMaxUpdateRate: new Gauge({ name: 'srcds_sv_max_update_rate', help: 'The time in MS per tick', registers: registry.allGameMetrics }),
+	// Metamod metrics
+	metamodEnabled: new Gauge({ name: 'srcds_metamod_enabled', help: 'Is metamod enabled', registers: registry.allGameMetrics }),
+	metamodVersion: new Gauge({ name: 'srcds_metamod_version', help: 'Metamod version', registers: registry.allGameMetrics }),
+	// Sourcemod metrics
+	sourcemodEnabled: new Gauge({ name: 'srcds_sourcemod_enabled', help: 'Is sourcemod enabled', registers: registry.allGameMetrics }),
+	// SourcePython metrics
+	sourcepythonEnabled: new Gauge({ name: 'srcds_sourcepython_enabled', help: 'Is sourcepython enabled', registers: registry.allGameMetrics }),
+
+	// CSGO metrics
+	svms: new Gauge({ name: 'srcds_svms', help: 'ms per sim frame', registers: [registry.csgoRegistry] }),
+	varms: new Gauge({ name: 'srcds_varms', help: 'ms variance', registers: [registry.csgoRegistry] }),
+};
--- a/modules/registry.js
+++ b/modules/registry.js
@@ -0,0 +1,54 @@
+import prometheus from 'prom-client';
+import utils from '../utils/utils.js';
+
+const csgoRegistry = new prometheus.Registry();
+const gmodRegistry = new prometheus.Registry();
+const cstrikeRegistry = new prometheus.Registry();
+const allGameMetrics = [
+	csgoRegistry,
+	gmodRegistry,
+	cstrikeRegistry,
+];
+
+export default {
+	csgoRegistry,
+	gmodRegistry,
+	cstrikeRegistry,
+	allGameMetrics,
+
+	setDefaultLabels(ip, port, game, tags, metamodResponse, sourcemodResponse, sourcepythonResponse) {
+		const defaultLabels = { server: `${ip}:${port}`, game, tags };
+		if (metamodResponse) {
+			const line = utils.getLine(metamodResponse);
+			const version = line.replace('Metamod:Source version ', '');
+			defaultLabels.metamod = version;
+		}
+		if (sourcemodResponse) {
+			const line = utils.getLine(sourcemodResponse, 2);
+			const version = line.replace('    SourceMod Version: ', '');
+			defaultLabels.sourcemod = version;
+		}
+		if (sourcepythonResponse) {
+			const line = utils.getLine(sourcepythonResponse, 8);
+			const version = line.replace('SP version    : ', '');
+			defaultLabels.sourcepython = version;
+		}
+		if (game === 'csgo') {
+			csgoRegistry.setDefaultLabels(defaultLabels);
+		} else if (game === 'cstrike') {
+			cstrikeRegistry.setDefaultLabels(defaultLabels);
+		} else if (game === 'gmod') {
+			gmodRegistry.setDefaultLabels(defaultLabels);
+		}
+	},
+
+	sendMetrics(game, res) {
+		if (game === 'csgo') {
+			res.end(csgoRegistry.metrics());
+		} else if (game === 'cstrike') {
+			res.end(cstrikeRegistry.metrics());
+		} else if (game === 'gmod') {
+			res.end(gmodRegistry.metrics());
+		}
+	},
+};
--- a/modules/sourcemod.js
+++ b/modules/sourcemod.js
@@ -0,0 +1,17 @@
+import utils from '../utils/utils.js';
+import metrics from './metrics.js';
+
+export default {
+	async request(client) {
+		return utils.rconCommand(client, 'sm version');
+	},
+	setMetrics(response) {
+		if (response) {
+			const isEnabled = utils.isValidResponse(response);
+			const value = isEnabled ? Number(1) : Number(0);
+			metrics.sourcemodEnabled.set(value);
+		} else {
+			metrics.sourcemodEnabled.set((Number(-1)));
+		}
+	},
+};
--- a/modules/sourcepython.js
+++ b/modules/sourcepython.js
@@ -0,0 +1,17 @@
+import utils from '../utils/utils.js';
+import metrics from './metrics.js';
+
+export default {
+	async request(client) {
+		return utils.rconCommand(client, 'sp info');
+	},
+	setMetrics(response) {
+		if (response) {
+			const isEnabled = utils.isValidResponse(response);
+			const value = isEnabled ? Number(1) : Number(0);
+			metrics.sourcepythonEnabled.set(value);
+		} else {
+			metrics.sourcepythonEnabled.set(Number(-1));
+		}
+	},
+};
--- a/package-lock.json
+++ b/package-lock.json
@@ -133,6 +133,17 @@
        "color-convert": "^1.9.0"
      }
    },
+    "anymatch": {
+      "version": "1.3.2",
+      "resolved": "https://registry.npmjs.org/anymatch/-/anymatch-1.3.2.tgz",
+      "integrity": "sha512-0XNayC8lTHQ2OI8aljNCN3sSx6hsr/1+rlcDAotXJR7C1oZZHCNsfpbKwMjRA3Uqb5tF1Rae2oloTr4xpq+WjA==",
+      "dev": true,
+      "optional": true,
+      "requires": {
+        "micromatch": "^2.1.5",
+        "normalize-path": "^2.0.0"
+      }
+    },
    "argparse": {
      "version": "1.0.10",
      "resolved": "https://registry.npmjs.org/argparse/-/argparse-1.0.10.tgz",
@@ -152,6 +163,30 @@
        "@babel/runtime-corejs3": "^7.10.2"
      }
    },
+    "arr-diff": {
+      "version": "2.0.0",
+      "resolved": "https://registry.npmjs.org/arr-diff/-/arr-diff-2.0.0.tgz",
+      "integrity": "sha1-jzuCf5Vai9ZpaX5KQlasPOrjVs8=",
+      "dev": true,
+      "optional": true,
+      "requires": {
+        "arr-flatten": "^1.0.1"
+      }
+    },
+    "arr-flatten": {
+      "version": "1.1.0",
+      "resolved": "https://registry.npmjs.org/arr-flatten/-/arr-flatten-1.1.0.tgz",
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+        "is-extendable": "^0.1.1",
+        "is-plain-object": "^2.0.3",
+        "split-string": "^3.0.1"
+      },
+      "dependencies": {
+        "extend-shallow": {
+          "version": "2.0.1",
+          "resolved": "https://registry.npmjs.org/extend-shallow/-/extend-shallow-2.0.1.tgz",
+          "integrity": "sha1-Ua99YUrZqfYQ6huvu5idaxxWiQ8=",
+          "dev": true,
+          "optional": true,
+          "requires": {
+            "is-extendable": "^0.1.0"
+          }
+        }
+      }
+    },
    "setprototypeof": {
      "version": "1.1.1",
      "resolved": "https://registry.npmjs.org/setprototypeof/-/setprototypeof-1.1.1.tgz",
@@ -2059,6 +4564,12 @@
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      "dev": true
    },
+    "slash": {
+      "version": "1.0.0",
+      "resolved": "https://registry.npmjs.org/slash/-/slash-1.0.0.tgz",
+      "integrity": "sha1-xB8vbDn8FtHNF61LXYlhFK5HDVU=",
+      "dev": true
+    },
    "slice-ansi": {
      "version": "2.1.0",
      "resolved": "https://registry.npmjs.org/slice-ansi/-/slice-ansi-2.1.0.tgz",
@@ -2078,6 +4589,161 @@
        }
      }
    },
+    "snapdragon": {
+      "version": "0.8.2",
+      "resolved": "https://registry.npmjs.org/snapdragon/-/snapdragon-0.8.2.tgz",
+      "integrity": "sha512-FtyOnWN/wCHTVXOMwvSv26d+ko5vWlIDD6zoUJ7LW8vh+ZBC8QdljveRP+crNrtBwioEUWy/4dMtbBjA4ioNlg==",
+      "dev": true,
+      "optional": true,
+      "requires": {
+        "base": "^0.11.1",
+        "debug": "^2.2.0",
+        "define-property": "^0.2.5",
+        "extend-shallow": "^2.0.1",
+        "map-cache": "^0.2.2",
+        "source-map": "^0.5.6",
+        "source-map-resolve": "^0.5.0",
+        "use": "^3.1.0"
+      },
+      "dependencies": {
+        "define-property": {
+          "version": "0.2.5",
+          "resolved": "https://registry.npmjs.org/define-property/-/define-property-0.2.5.tgz",
+          "integrity": "sha1-w1se+RjsPJkPmlvFe+BKrOxcgRY=",
+          "dev": true,
+          "optional": true,
+          "requires": {
+            "is-descriptor": "^0.1.0"
+          }
+        },
+        "extend-shallow": {
+          "version": "2.0.1",
+          "resolved": "https://registry.npmjs.org/extend-shallow/-/extend-shallow-2.0.1.tgz",
+          "integrity": "sha1-Ua99YUrZqfYQ6huvu5idaxxWiQ8=",
+          "dev": true,
+          "optional": true,
+          "requires": {
+            "is-extendable": "^0.1.0"
+          }
+        }
+      }
+    },
+    "snapdragon-node": {
+      "version": "2.1.1",
+      "resolved": "https://registry.npmjs.org/snapdragon-node/-/snapdragon-node-2.1.1.tgz",
+      "integrity": "sha512-O27l4xaMYt/RSQ5TR3vpWCAB5Kb/czIcqUFOM/C4fYcLnbZUc1PkjTAMjof2pBWaSTwOUd6qUHcFGVGj7aIwnw==",
+      "dev": true,
+      "optional": true,
+      "requires": {
+        "define-property": "^1.0.0",
+        "isobject": "^3.0.0",
+        "snapdragon-util": "^3.0.1"
+      },
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+          "version": "1.0.0",
+          "resolved": "https://registry.npmjs.org/define-property/-/define-property-1.0.0.tgz",
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+          "dev": true,
+          "optional": true,
+          "requires": {
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+          "resolved": "https://registry.npmjs.org/is-data-descriptor/-/is-data-descriptor-1.0.0.tgz",
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+          "dev": true,
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+          "resolved": "https://registry.npmjs.org/is-descriptor/-/is-descriptor-1.0.2.tgz",
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+          "dev": true,
+          "optional": true,
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+            "is-data-descriptor": "^1.0.0",
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+          "resolved": "https://registry.npmjs.org/isobject/-/isobject-3.0.1.tgz",
+          "integrity": "sha1-TkMekrEalzFjaqH5yNHMvP2reN8=",
+          "dev": true,
+          "optional": true
+        },
+        "kind-of": {
+          "version": "6.0.3",
+          "resolved": "https://registry.npmjs.org/kind-of/-/kind-of-6.0.3.tgz",
+          "integrity": "sha512-dcS1ul+9tmeD95T+x28/ehLgd9mENa3LsvDTtzm3vyBEO7RPptvAD+t44WVXaUjTBRcrpFeFlC8WCruUR456hw==",
+          "dev": true,
+          "optional": true
+        }
+      }
+    },
+    "snapdragon-util": {
+      "version": "3.0.1",
+      "resolved": "https://registry.npmjs.org/snapdragon-util/-/snapdragon-util-3.0.1.tgz",
+      "integrity": "sha512-mbKkMdQKsjX4BAL4bRYTj21edOf8cN7XHdYUJEe+Zn99hVEYcMvKPct1IqNe7+AZPirn8BCDOQBHQZknqmKlZQ==",
+      "dev": true,
+      "optional": true,
+      "requires": {
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+      }
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+    "source-map": {
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+      "resolved": "https://registry.npmjs.org/source-map/-/source-map-0.5.7.tgz",
+      "integrity": "sha1-igOdLRAh0i0eoUyA2OpGi6LvP8w=",
+      "dev": true
+    },
+    "source-map-resolve": {
+      "version": "0.5.3",
+      "resolved": "https://registry.npmjs.org/source-map-resolve/-/source-map-resolve-0.5.3.tgz",
+      "integrity": "sha512-Htz+RnsXWk5+P2slx5Jh3Q66vhQj1Cllm0zvnaY98+NFx+Dv2CF/f5O/t8x+KaNdrdIAsruNzoh/KpialbqAnw==",
+      "dev": true,
+      "optional": true,
+      "requires": {
+        "atob": "^2.1.2",
+        "decode-uri-component": "^0.2.0",
+        "resolve-url": "^0.2.1",
+        "source-map-url": "^0.4.0",
+        "urix": "^0.1.0"
+      }
+    },
+    "source-map-support": {
+      "version": "0.4.18",
+      "resolved": "https://registry.npmjs.org/source-map-support/-/source-map-support-0.4.18.tgz",
+      "integrity": "sha512-try0/JqxPLF9nOjvSta7tVondkP5dwgyLDjVoyMDlmjugT2lRZ1OfsrYTkCd2hkDnJTKRbO/Rl3orm8vlsUzbA==",
+      "dev": true,
+      "requires": {
+        "source-map": "^0.5.6"
+      }
+    },
+    "source-map-url": {
+      "version": "0.4.0",
+      "resolved": "https://registry.npmjs.org/source-map-url/-/source-map-url-0.4.0.tgz",
+      "integrity": "sha1-PpNdfd1zYxuXZZlW1VEo6HtQhKM=",
+      "dev": true,
+      "optional": true
+    },
    "spdx-correct": {
      "version": "3.1.1",
      "resolved": "https://registry.npmjs.org/spdx-correct/-/spdx-correct-3.1.1.tgz",
@@ -2110,6 +4776,16 @@
      "integrity": "sha512-+orQK83kyMva3WyPf59k1+Y525csj5JejicWut55zeTWANuN17qSiSLUXWtzHeNWORSvT7GLDJ/E/XiIWoXBTw==",
      "dev": true
    },
+    "split-string": {
+      "version": "3.1.0",
+      "resolved": "https://registry.npmjs.org/split-string/-/split-string-3.1.0.tgz",
+      "integrity": "sha512-NzNVhJDYpwceVVii8/Hu6DKfD2G+NrQHlS/V/qgv763EYudVwEcMQNxd2lh+0VrUByXN/oJkl5grOhYWvQUYiw==",
+      "dev": true,
+      "optional": true,
+      "requires": {
+        "extend-shallow": "^3.0.0"
+      }
+    },
    "sprintf-js": {
      "version": "1.0.3",
      "resolved": "https://registry.npmjs.org/sprintf-js/-/sprintf-js-1.0.3.tgz",
@@ -2121,6 +4797,29 @@
      "resolved": "https://registry.npmjs.org/srcds-rcon/-/srcds-rcon-2.2.1.tgz",
      "integrity": "sha1-b7AZKEIK3dorh9l+MaDWB+mrgCc="
    },
+    "static-extend": {
+      "version": "0.1.2",
+      "resolved": "https://registry.npmjs.org/static-extend/-/static-extend-0.1.2.tgz",
+      "integrity": "sha1-YICcOcv/VTNyJv1eC1IPNB8ftcY=",
+      "dev": true,
+      "optional": true,
+      "requires": {
+        "define-property": "^0.2.5",
+        "object-copy": "^0.1.0"
+      },
+      "dependencies": {
+        "define-property": {
+          "version": "0.2.5",
+          "resolved": "https://registry.npmjs.org/define-property/-/define-property-0.2.5.tgz",
+          "integrity": "sha1-w1se+RjsPJkPmlvFe+BKrOxcgRY=",
+          "dev": true,
+          "optional": true,
+          "requires": {
+            "is-descriptor": "^0.1.0"
+          }
+        }
+      }
+    },
    "statuses": {
      "version": "1.5.0",
      "resolved": "https://registry.npmjs.org/statuses/-/statuses-1.5.0.tgz",
@@ -2234,6 +4933,16 @@
        }
      }
    },
+    "string_decoder": {
+      "version": "1.1.1",
+      "resolved": "https://registry.npmjs.org/string_decoder/-/string_decoder-1.1.1.tgz",
+      "integrity": "sha512-n/ShnvDi6FHbbVfviro+WojiFzv+s8MPMHBczVePfUpDJLwoLT0ht1l4YwBCbi8pJAveEEdnkHyPyTP/mzRfwg==",
+      "dev": true,
+      "optional": true,
+      "requires": {
+        "safe-buffer": "~5.1.0"
+      }
+    },
    "strip-ansi": {
      "version": "6.0.0",
      "resolved": "https://registry.npmjs.org/strip-ansi/-/strip-ansi-6.0.0.tgz",
@@ -2345,11 +5054,69 @@
        "os-tmpdir": "~1.0.2"
      }
    },
+    "to-fast-properties": {
+      "version": "1.0.3",
+      "resolved": "https://registry.npmjs.org/to-fast-properties/-/to-fast-properties-1.0.3.tgz",
+      "integrity": "sha1-uDVx+k2MJbguIxsG46MFXeTKGkc=",
+      "dev": true
+    },
+    "to-object-path": {
+      "version": "0.3.0",
+      "resolved": "https://registry.npmjs.org/to-object-path/-/to-object-path-0.3.0.tgz",
+      "integrity": "sha1-KXWIt7Dn4KwI4E5nL4XB9JmeF68=",
+      "dev": true,
+      "optional": true,
+      "requires": {
+        "kind-of": "^3.0.2"
+      }
+    },
+    "to-regex": {
+      "version": "3.0.2",
+      "resolved": "https://registry.npmjs.org/to-regex/-/to-regex-3.0.2.tgz",
+      "integrity": "sha512-FWtleNAtZ/Ki2qtqej2CXTOayOH9bHDQF+Q48VpWyDXjbYxA4Yz8iDB31zXOBUlOHHKidDbqGVrTUvQMPmBGBw==",
+      "dev": true,
+      "optional": true,
+      "requires": {
+        "define-property": "^2.0.2",
+        "extend-shallow": "^3.0.2",
+        "regex-not": "^1.0.2",
+        "safe-regex": "^1.1.0"
+      }
+    },
+    "to-regex-range": {
+      "version": "2.1.1",
+      "resolved": "https://registry.npmjs.org/to-regex-range/-/to-regex-range-2.1.1.tgz",
+      "integrity": "sha1-fIDBe53+vlmeJzZ+DU3VWQFB2zg=",
+      "dev": true,
+      "optional": true,
+      "requires": {
+        "is-number": "^3.0.0",
+        "repeat-string": "^1.6.1"
+      },
+      "dependencies": {
+        "is-number": {
+          "version": "3.0.0",
+          "resolved": "https://registry.npmjs.org/is-number/-/is-number-3.0.0.tgz",
+          "integrity": "sha1-JP1iAaR4LPUFYcgQJ2r8fRLXEZU=",
+          "dev": true,
+          "optional": true,
+          "requires": {
+            "kind-of": "^3.0.2"
+          }
+        }
+      }
+    },
    "toidentifier": {
      "version": "1.0.0",
      "resolved": "https://registry.npmjs.org/toidentifier/-/toidentifier-1.0.0.tgz",
      "integrity": "sha512-yaOH/Pk/VEhBWWTlhI+qXxDFXlejDGcQipMlyxda9nthulaxLZUNcUqFxokp0vcYnvteJln5FNQDRrxj3YcbVw=="
    },
+    "trim-right": {
+      "version": "1.0.1",
+      "resolved": "https://registry.npmjs.org/trim-right/-/trim-right-1.0.1.tgz",
+      "integrity": "sha1-yy4SAwZ+DI3h9hQJS5/kVwTqYAM=",
+      "dev": true
+    },
    "tsconfig-paths": {
      "version": "3.9.0",
      "resolved": "https://registry.npmjs.org/tsconfig-paths/-/tsconfig-paths-3.9.0.tgz",
@@ -2392,11 +5159,75 @@
        "mime-types": "~2.1.24"
      }
    },
+    "union-value": {
+      "version": "1.0.1",
+      "resolved": "https://registry.npmjs.org/union-value/-/union-value-1.0.1.tgz",
+      "integrity": "sha512-tJfXmxMeWYnczCVs7XAEvIV7ieppALdyepWMkHkwciRpZraG/xwT+s2JN8+pr1+8jCRf80FFzvr+MpQeeoF4Xg==",
+      "dev": true,
+      "optional": true,
+      "requires": {
+        "arr-union": "^3.1.0",
+        "get-value": "^2.0.6",
+        "is-extendable": "^0.1.1",
+        "set-value": "^2.0.1"
+      }
+    },
    "unpipe": {
      "version": "1.0.0",
      "resolved": "https://registry.npmjs.org/unpipe/-/unpipe-1.0.0.tgz",
      "integrity": "sha1-sr9O6FFKrmFltIF4KdIbLvSZBOw="
    },
+    "unset-value": {
+      "version": "1.0.0",
+      "resolved": "https://registry.npmjs.org/unset-value/-/unset-value-1.0.0.tgz",
+      "integrity": "sha1-g3aHP30jNRef+x5vw6jtDfyKtVk=",
+      "dev": true,
+      "optional": true,
+      "requires": {
+        "has-value": "^0.3.1",
+        "isobject": "^3.0.0"
+      },
+      "dependencies": {
+        "has-value": {
+          "version": "0.3.1",
+          "resolved": "https://registry.npmjs.org/has-value/-/has-value-0.3.1.tgz",
+          "integrity": "sha1-ex9YutpiyoJ+wKIHgCVlSEWZXh8=",
+          "dev": true,
+          "optional": true,
+          "requires": {
+            "get-value": "^2.0.3",
+            "has-values": "^0.1.4",
+            "isobject": "^2.0.0"
+          },
+          "dependencies": {
+            "isobject": {
+              "version": "2.1.0",
+              "resolved": "https://registry.npmjs.org/isobject/-/isobject-2.1.0.tgz",
+              "integrity": "sha1-8GVWEJaj8dou9GJy+BXIQNh+DIk=",
+              "dev": true,
+              "optional": true,
+              "requires": {
+                "isarray": "1.0.0"
+              }
+            }
+          }
+        },
+        "has-values": {
+          "version": "0.1.4",
+          "resolved": "https://registry.npmjs.org/has-values/-/has-values-0.1.4.tgz",
+          "integrity": "sha1-bWHeldkd/Km5oCCJrThL/49it3E=",
+          "dev": true,
+          "optional": true
+        },
+        "isobject": {
+          "version": "3.0.1",
+          "resolved": "https://registry.npmjs.org/isobject/-/isobject-3.0.1.tgz",
+          "integrity": "sha1-TkMekrEalzFjaqH5yNHMvP2reN8=",
+          "dev": true,
+          "optional": true
+        }
+      }
+    },
    "uri-js": {
      "version": "4.4.0",
      "resolved": "https://registry.npmjs.org/uri-js/-/uri-js-4.4.0.tgz",
@@ -2406,6 +5237,33 @@
        "punycode": "^2.1.0"
      }
    },
+    "urix": {
+      "version": "0.1.0",
+      "resolved": "https://registry.npmjs.org/urix/-/urix-0.1.0.tgz",
+      "integrity": "sha1-2pN/emLiH+wf0Y1Js1wpNQZ6bHI=",
+      "dev": true,
+      "optional": true
+    },
+    "use": {
+      "version": "3.1.1",
+      "resolved": "https://registry.npmjs.org/use/-/use-3.1.1.tgz",
+      "integrity": "sha512-cwESVXlO3url9YWlFW/TA9cshCEhtu7IKJ/p5soJ/gGpj7vbvFrAY/eIioQ6Dw23KjZhYgiIo8HOs1nQ2vr/oQ==",
+      "dev": true,
+      "optional": true
+    },
+    "user-home": {
+      "version": "1.1.1",
+      "resolved": "https://registry.npmjs.org/user-home/-/user-home-1.1.1.tgz",
+      "integrity": "sha1-K1viOjK2Onyd640PKNSFcko98ZA=",
+      "dev": true
+    },
+    "util-deprecate": {
+      "version": "1.0.2",
+      "resolved": "https://registry.npmjs.org/util-deprecate/-/util-deprecate-1.0.2.tgz",
+      "integrity": "sha1-RQ1Nyfpw3nMnYvvS1KKJgUGaDM8=",
+      "dev": true,
+      "optional": true
+    },
    "utils-merge": {
      "version": "1.0.1",
      "resolved": "https://registry.npmjs.org/utils-merge/-/utils-merge-1.0.1.tgz",
@@ -2417,6 +5275,15 @@
      "integrity": "sha512-8OQ9CL+VWyt3JStj7HX7/ciTL2V3Rl1Wf5OL+SNTm0yK1KvtReVulksyeRnCANHHuUxHlQig+JJDlUhBt1NQDQ==",
      "dev": true
    },
+    "v8flags": {
+      "version": "2.1.1",
+      "resolved": "https://registry.npmjs.org/v8flags/-/v8flags-2.1.1.tgz",
+      "integrity": "sha1-qrGh+jDUX4jdMhFIh1rALAtV5bQ=",
+      "dev": true,
+      "requires": {
+        "user-home": "^1.1.1"
+      }
+    },
    "validate-npm-package-license": {
      "version": "3.0.4",
      "resolved": "https://registry.npmjs.org/validate-npm-package-license/-/validate-npm-package-license-3.0.4.tgz",
--- a/package.json
+++ b/package.json
@@ -3,7 +3,10 @@
  "version": "1.0.0",
  "description": "Prometheus Exporter for SRCDS game servers such as CSGO",
  "main": "index.js",
+  "type": "module",
  "scripts": {
+    "dev": "nodemon index.js",
+    "lint": "eslint . --fix",
    "test": "echo \"Error: no test specified\" && exit 1"
  },
  "repository": {
--- a/utils/utils.js
+++ b/utils/utils.js
@@ -0,0 +1,32 @@
+import { TimeoutError } from 'working-rcon';
+
+export default {
+	parseCvar(value) {
+		const cvar = this.getLine(value);
+		const cvarRegex = RegExp('^\\"(.*)\\" = \\"([^\\"]*)\\"(.*)$');
+		const res = cvarRegex.exec(cvar);
+		return {
+			name: res[1],
+			value: res[2],
+			extra: res[3],
+		};
+	},
+	getLine(value, line = 1) {
+		return value.split('\n', line)[line - 1];
+	},
+	async rconCommand(client, command) {
+		try {
+			return client.command(command);
+		} catch (err) {
+			if (err instanceof TimeoutError) {
+				console.error('request timed out');
+			} else {
+				throw err;
+			}
+		}
+		return null;
+	},
+	isValidResponse(response) {
+		return !response.includes('Unknown');
+	},
+};