signalling server update

SignallingWebServer/modules/logging.js

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+// Copyright Epic Games, Inc. All Rights Reserved.
+
+const fs = require('fs');
+const { Console } = require('console');
+
+var loggers=[];
+var logFunctions=[];
+var logColorFunctions=[];
+
+console.log = function(msg, ...args) {
+	logFunctions.forEach((logFunction) => {
+		logFunction(msg, ...args);
+	});
+}
+
+console.logColor = function(color, msg, ...args) {
+	logColorFunctions.forEach((logColorFunction) => {
+		logColorFunction(color, msg, ...args);
+	});
+}
+
+const AllAttributesOff = '\x1b[0m';
+const BoldOn = '\x1b[1m';
+const Black = '\x1b[30m';
+const Red = '\x1b[31m';
+const Green = '\x1b[32m';
+const Yellow = '\x1b[33m';
+const Blue = '\x1b[34m';
+const Magenta = '\x1b[35m';
+const Cyan = '\x1b[36m';
+const White = '\x1b[37m';
+
+/**
+ * Pad the start of the given number with zeros so it takes up the number of digits.
+ * e.g. zeroPad(5, 3) = '005' and zeroPad(23, 2) = '23'.
+ */
+function zeroPad(number, digits) {
+	let string = number.toString();
+	while (string.length < digits) {
+		string = '0' + string;
+	}
+	return string;
+}
+
+/**
+ * Create a string of the form 'YEAR.MONTH.DATE.HOURS.MINUTES.SECONDS'.
+ */
+function dateTimeToString() {
+	let date = new Date();
+	return `${date.getFullYear()}.${zeroPad(date.getMonth(), 2)}.${zeroPad(date.getDate(), 2)}.${zeroPad(date.getHours(), 2)}.${zeroPad(date.getMinutes(), 2)}.${zeroPad(date.getSeconds(), 2)}`;
+}
+
+/**
+ * Create a string of the form 'HOURS.MINUTES.SECONDS.MILLISECONDS'.
+ */
+function timeToString() {
+	let date = new Date();
+	return `${zeroPad(date.getHours(), 2)}:${zeroPad(date.getMinutes(), 2)}:${zeroPad(date.getSeconds(), 2)}.${zeroPad(date.getMilliseconds(), 3)}`;
+}
+
+function RegisterFileLogger(path) {
+	if(path == null)
+		path = './logs/';
+	
+	if (!fs.existsSync(path))
+		fs.mkdirSync(path);
+	
+	var output = fs.createWriteStream(`${path}${dateTimeToString()}.log`);
+	var fileLogger = new Console(output);
+	logFunctions.push(function(msg, ...args) {
+		fileLogger.log(`${timeToString()} ${msg}`, ...args);
+	});
+	
+	logColorFunctions.push(function(color, msg, ...args) {
+		fileLogger.log(`${timeToString()} ${msg}`, ...args);
+	});
+	loggers.push(fileLogger);
+}
+	
+function RegisterConsoleLogger() {
+	var consoleLogger = new Console(process.stdout, process.stderr)
+	logFunctions.push(function(msg, ...args) {
+		consoleLogger.log(`${timeToString()} ${msg}`, ...args);
+	});
+	
+	logColorFunctions.push(function(color, msg, ...args) {
+		consoleLogger.log(`${BoldOn}${color}${timeToString()} ${msg}${AllAttributesOff}`, ...args);
+	});
+	loggers.push(consoleLogger);
+}
+
+module.exports = {
+	//Functions
+	RegisterFileLogger,
+	RegisterConsoleLogger,
+	
+	//Variables
+	AllAttributesOff,
+	BoldOn,
+	Black,
+	Red,
+	Green,
+	Yellow,
+	Blue,
+	Magenta,
+	Cyan,
+	White
+}