uptime-kuma/src/util.js

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"use strict";
// Common Util for frontend and backend
//
// DOT NOT MODIFY util.js!
// Need to run "tsc" to compile if there are any changes.
//
// Backend uses the compiled file util.js
// Frontend uses util.ts
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Object.defineProperty(exports, "__esModule", { value: true });
exports.parseTimeFromTimeObject = exports.parseTimeObject = exports.getMaintenanceRelativeURL = exports.getMonitorRelativeURL = exports.genSecret = exports.getCryptoRandomInt = exports.getRandomInt = exports.getRandomArbitrary = exports.TimeLogger = exports.polyfill = exports.log = exports.debug = exports.ucfirst = exports.sleep = exports.flipStatus = exports.STATUS_PAGE_MAINTENANCE = exports.STATUS_PAGE_PARTIAL_DOWN = exports.STATUS_PAGE_ALL_UP = exports.STATUS_PAGE_ALL_DOWN = exports.MAINTENANCE = exports.PENDING = exports.UP = exports.DOWN = exports.appName = exports.isDev = void 0;
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const _dayjs = require("dayjs");
const dayjs = _dayjs;
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exports.isDev = process.env.NODE_ENV === "development";
exports.appName = "Uptime Kuma";
exports.DOWN = 0;
exports.UP = 1;
exports.PENDING = 2;
exports.MAINTENANCE = 3;
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exports.STATUS_PAGE_ALL_DOWN = 0;
exports.STATUS_PAGE_ALL_UP = 1;
exports.STATUS_PAGE_PARTIAL_DOWN = 2;
exports.STATUS_PAGE_MAINTENANCE = 3;
/** Flip the status of s */
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function flipStatus(s) {
if (s === exports.UP) {
return exports.DOWN;
}
if (s === exports.DOWN) {
return exports.UP;
}
return s;
}
exports.flipStatus = flipStatus;
/**
* Delays for specified number of seconds
* @param ms Number of milliseconds to sleep for
*/
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function sleep(ms) {
return new Promise(resolve => setTimeout(resolve, ms));
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}
exports.sleep = sleep;
/**
* PHP's ucfirst
* @param str
*/
function ucfirst(str) {
if (!str) {
return str;
}
const firstLetter = str.substr(0, 1);
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return firstLetter.toUpperCase() + str.substr(1);
}
exports.ucfirst = ucfirst;
/**
* @deprecated Use log.debug
* @since https://github.com/louislam/uptime-kuma/pull/910
* @param msg
*/
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function debug(msg) {
exports.log.log("", msg, "debug");
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}
exports.debug = debug;
class Logger {
constructor() {
/**
* UPTIME_KUMA_HIDE_LOG=debug_monitor,info_monitor
*
* Example:
* [
* "debug_monitor", // Hide all logs that level is debug and the module is monitor
* "info_monitor",
* ]
*/
this.hideLog = {
info: [],
warn: [],
error: [],
debug: [],
};
if (typeof process !== "undefined" && process.env.UPTIME_KUMA_HIDE_LOG) {
let list = process.env.UPTIME_KUMA_HIDE_LOG.split(",").map(v => v.toLowerCase());
for (let pair of list) {
// split first "_" only
let values = pair.split(/_(.*)/s);
if (values.length >= 2) {
this.hideLog[values[0]].push(values[1]);
}
}
this.debug("server", "UPTIME_KUMA_HIDE_LOG is set");
this.debug("server", this.hideLog);
}
}
/**
* Write a message to the log
* @param module The module the log comes from
* @param msg Message to write
* @param level Log level. One of INFO, WARN, ERROR, DEBUG or can be customized.
*/
log(module, msg, level) {
if (this.hideLog[level] && this.hideLog[level].includes(module)) {
return;
}
module = module.toUpperCase();
level = level.toUpperCase();
const now = new Date().toISOString();
const formattedMessage = (typeof msg === "string") ? `${now} [${module}] ${level}: ${msg}` : msg;
if (level === "INFO") {
console.info(formattedMessage);
}
else if (level === "WARN") {
console.warn(formattedMessage);
}
else if (level === "ERROR") {
console.error(formattedMessage);
}
else if (level === "DEBUG") {
if (exports.isDev) {
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console.log(formattedMessage);
}
}
else {
console.log(formattedMessage);
}
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}
/**
* Log an INFO message
* @param module Module log comes from
* @param msg Message to write
*/
info(module, msg) {
this.log(module, msg, "info");
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}
/**
* Log a WARN message
* @param module Module log comes from
* @param msg Message to write
*/
warn(module, msg) {
this.log(module, msg, "warn");
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}
/**
* Log an ERROR message
* @param module Module log comes from
* @param msg Message to write
*/
error(module, msg) {
this.log(module, msg, "error");
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}
/**
* Log a DEBUG message
* @param module Module log comes from
* @param msg Message to write
*/
debug(module, msg) {
this.log(module, msg, "debug");
}
/**
* Log an exeption as an ERROR
* @param module Module log comes from
* @param exception The exeption to include
* @param msg The message to write
*/
exception(module, exception, msg) {
let finalMessage = exception;
if (msg) {
finalMessage = `${msg}: ${exception}`;
}
this.log(module, finalMessage, "error");
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}
}
exports.log = new Logger();
/**
* String.prototype.replaceAll() polyfill
* https://gomakethings.com/how-to-replace-a-section-of-a-string-with-another-one-with-vanilla-js/
* @author Chris Ferdinandi
* @license MIT
*/
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function polyfill() {
if (!String.prototype.replaceAll) {
String.prototype.replaceAll = function (str, newStr) {
// If a regex pattern
if (Object.prototype.toString.call(str).toLowerCase() === "[object regexp]") {
return this.replace(str, newStr);
}
// If a string
return this.replace(new RegExp(str, "g"), newStr);
};
}
}
exports.polyfill = polyfill;
class TimeLogger {
constructor() {
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this.startTime = dayjs().valueOf();
}
/**
* Output time since start of monitor
* @param name Name of monitor
*/
print(name) {
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if (exports.isDev && process.env.TIMELOGGER === "1") {
console.log(name + ": " + (dayjs().valueOf() - this.startTime) + "ms");
}
}
}
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exports.TimeLogger = TimeLogger;
/**
* Returns a random number between min (inclusive) and max (exclusive)
*/
function getRandomArbitrary(min, max) {
return Math.random() * (max - min) + min;
}
exports.getRandomArbitrary = getRandomArbitrary;
/**
* From: https://stackoverflow.com/questions/1527803/generating-random-whole-numbers-in-javascript-in-a-specific-range
*
* Returns a random integer between min (inclusive) and max (inclusive).
* The value is no lower than min (or the next integer greater than min
* if min isn't an integer) and no greater than max (or the next integer
* lower than max if max isn't an integer).
* Using Math.round() will give you a non-uniform distribution!
*/
function getRandomInt(min, max) {
min = Math.ceil(min);
max = Math.floor(max);
return Math.floor(Math.random() * (max - min + 1)) + min;
}
exports.getRandomInt = getRandomInt;
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/**
* Returns either the NodeJS crypto.randomBytes() function or its
* browser equivalent implemented via window.crypto.getRandomValues()
*/
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let getRandomBytes = ((typeof window !== 'undefined' && window.crypto)
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// Browsers
? function () {
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return (numBytes) => {
let randomBytes = new Uint8Array(numBytes);
for (let i = 0; i < numBytes; i += 65536) {
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window.crypto.getRandomValues(randomBytes.subarray(i, i + Math.min(numBytes - i, 65536)));
}
return randomBytes;
};
}
// Node
: function () {
return require("crypto").randomBytes;
})();
/**
* Get a random integer suitable for use in cryptography between upper
* and lower bounds.
* @param min Minimum value of integer
* @param max Maximum value of integer
* @returns Cryptographically suitable random integer
*/
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function getCryptoRandomInt(min, max) {
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// synchronous version of: https://github.com/joepie91/node-random-number-csprng
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const range = max - min;
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if (range >= Math.pow(2, 32))
console.log("Warning! Range is too large.");
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let tmpRange = range;
let bitsNeeded = 0;
let bytesNeeded = 0;
let mask = 1;
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while (tmpRange > 0) {
if (bitsNeeded % 8 === 0)
bytesNeeded += 1;
bitsNeeded += 1;
mask = mask << 1 | 1;
tmpRange = tmpRange >>> 1;
}
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const randomBytes = getRandomBytes(bytesNeeded);
let randomValue = 0;
for (let i = 0; i < bytesNeeded; i++) {
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randomValue |= randomBytes[i] << 8 * i;
}
randomValue = randomValue & mask;
if (randomValue <= range) {
return min + randomValue;
}
else {
return getCryptoRandomInt(min, max);
}
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}
exports.getCryptoRandomInt = getCryptoRandomInt;
/**
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* Generate a random alphanumeric string of fixed length
* @param length Length of string to generate
* @returns string
*/
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function genSecret(length = 64) {
let secret = "";
const chars = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789";
const charsLength = chars.length;
for (let i = 0; i < length; i++) {
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secret += chars.charAt(getCryptoRandomInt(0, charsLength - 1));
}
return secret;
}
exports.genSecret = genSecret;
/**
* Get the path of a monitor
* @param id ID of monitor
* @returns Formatted relative path
*/
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function getMonitorRelativeURL(id) {
return "/dashboard/" + id;
}
exports.getMonitorRelativeURL = getMonitorRelativeURL;
function getMaintenanceRelativeURL(id) {
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return "/maintenance/" + id;
}
exports.getMaintenanceRelativeURL = getMaintenanceRelativeURL;
/**
* Parse to Time Object that used in VueDatePicker
* @param {string} time E.g. 12:00
* @returns object
*/
function parseTimeObject(time) {
if (!time) {
return {
hours: 0,
minutes: 0,
};
}
let array = time.split(":");
if (array.length < 2) {
throw new Error("parseVueDatePickerTimeFormat: Invalid Time");
}
let obj = {
hours: parseInt(array[0]),
minutes: parseInt(array[1]),
seconds: 0,
};
if (array.length >= 3) {
obj.seconds = parseInt(array[2]);
}
return obj;
}
exports.parseTimeObject = parseTimeObject;
/**
* @returns string e.g. 12:00
*/
function parseTimeFromTimeObject(obj) {
if (!obj) {
return obj;
}
let result = "";
result += obj.hours.toString().padStart(2, "0") + ":" + obj.minutes.toString().padStart(2, "0");
if (obj.seconds) {
result += ":" + obj.seconds.toString().padStart(2, "0");
}
return result;
}
exports.parseTimeFromTimeObject = parseTimeFromTimeObject;