spacebar/src/util/passwordStrength.ts
2021-05-24 20:47:06 +02:00

50 lines
1.3 KiB
TypeScript

import { Config } from "@fosscord/server-util";
import "missing-native-js-functions";
const reNUMBER = /[0-9]/g;
const reUPPERCASELETTER = /[A-Z]/g;
const reSYMBOLS = /[A-Z,a-z,0-9]/g;
const blocklist: string[] = []; // TODO: update ones passwordblocklist is stored in db
/*
* https://en.wikipedia.org/wiki/Password_policy
* password must meet following criteria, to be perfect:
* - min <n> chars
* - min <n> numbers
* - min <n> symbols
* - min <n> uppercase chars
*
* Returns: 0 > pw > 1
*/
export function check(password: string): number {
const { minLength, minNumbers, minUpperCase, minSymbols } = Config.get().register.password;
var strength = 0;
// checks for total password len
if (password.length >= minLength - 1) {
strength += 0.25;
}
// checks for amount of Numbers
if (password.count(reNUMBER) >= minNumbers - 1) {
strength += 0.25;
}
// checks for amount of Uppercase Letters
if (password.count(reUPPERCASELETTER) >= minUpperCase - 1) {
strength += 0.25;
}
// checks for amount of symbols
if (password.replace(reSYMBOLS, "").length >= minSymbols - 1) {
strength += 0.25;
}
// checks if password only consists of numbers or only consists of chars
if (password.length == password.count(reNUMBER) || password.length === password.count(reUPPERCASELETTER)) {
strength = 0;
}
return strength;
}