uptime-kuma/src/util.ts
2021-10-01 00:09:43 +08:00

126 lines
3.2 KiB
TypeScript

// 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
import * as _dayjs from "dayjs";
const dayjs = _dayjs;
export const isDev = process.env.NODE_ENV === "development";
export const appName = "Uptime Kuma";
export const DOWN = 0;
export const UP = 1;
export const PENDING = 2;
export const STATUS_PAGE_ALL_DOWN = 0;
export const STATUS_PAGE_ALL_UP = 1;
export const STATUS_PAGE_PARTIAL_DOWN = 2;
export function flipStatus(s: number) {
if (s === UP) {
return DOWN;
}
if (s === DOWN) {
return UP;
}
return s;
}
export function sleep(ms: number) {
return new Promise(resolve => setTimeout(resolve, ms));
}
/**
* PHP's ucfirst
* @param str
*/
export function ucfirst(str: string) {
if (!str) {
return str;
}
const firstLetter = str.substr(0, 1);
return firstLetter.toUpperCase() + str.substr(1);
}
export function debug(msg: any) {
if (isDev) {
console.log(msg);
}
}
declare global { interface String { replaceAll(str: string, newStr: string): string; } }
export function polyfill() {
/**
* 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
*/
if (!String.prototype.replaceAll) {
String.prototype.replaceAll = function (str: string, newStr: string) {
// 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);
};
}
}
export class TimeLogger {
startTime: number;
constructor() {
this.startTime = dayjs().valueOf();
}
print(name: string) {
if (isDev) {
console.log(name + ": " + (dayjs().valueOf() - this.startTime) + "ms")
}
}
}
/**
* Returns a random number between min (inclusive) and max (exclusive)
*/
export function getRandomArbitrary(min: number, max: number) {
return Math.random() * (max - min) + min;
}
/**
* 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!
*/
export function getRandomInt(min: number, max: number) {
min = Math.ceil(min);
max = Math.floor(max);
return Math.floor(Math.random() * (max - min + 1)) + min;
}
export function genSecret(length = 64) {
let secret = "";
let chars = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789";
let charsLength = chars.length;
for ( let i = 0; i < length; i++ ) {
secret += chars.charAt(Math.floor(Math.random() * charsLength));
}
return secret;
}