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Diffstat (limited to 'src/api/util/utility/passwordStrength.ts')
-rw-r--r-- | src/api/util/utility/passwordStrength.ts | 59 |
1 files changed, 0 insertions, 59 deletions
diff --git a/src/api/util/utility/passwordStrength.ts b/src/api/util/utility/passwordStrength.ts deleted file mode 100644 index ff83d3df..00000000 --- a/src/api/util/utility/passwordStrength.ts +++ /dev/null @@ -1,59 +0,0 @@ -import { Config } from "@fosscord/util"; - -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 - * - shannon entropy folded into [0, 1) interval - * - * Returns: 0 > pw > 1 - */ -export function checkPassword(password: string): number { - const { minLength, minNumbers, minUpperCase, minSymbols } = Config.get().register.password; - let strength = 0; - - // checks for total password len - if (password.length >= minLength - 1) { - strength += 0.05; - } - - // checks for amount of Numbers - if (password.count(reNUMBER) >= minNumbers - 1) { - strength += 0.05; - } - - // checks for amount of Uppercase Letters - if (password.count(reUPPERCASELETTER) >= minUpperCase - 1) { - strength += 0.05; - } - - // checks for amount of symbols - if (password.replace(reSYMBOLS, "").length >= minSymbols - 1) { - strength += 0.05; - } - - // 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; - } - - let entropyMap: { [key: string]: number } = {}; - for (let i = 0; i < password.length; i++) { - if (entropyMap[password[i]]) entropyMap[password[i]]++; - else entropyMap[password[i]] = 1; - } - - let entropies = Object.values(entropyMap); - - entropies.map((x) => x / entropyMap.length); - strength += entropies.reduceRight((a: number, x: number) => a - x * Math.log2(x)) / Math.log2(password.length); - return strength; -} |