Typebox date, date-time, time, email, uuid, url, ipv4, ipv6 helper

typebox-helper.ts

import { FormatRegistry } from "@sinclair/typebox";

export const setupFormatRegistry = () => {
  FormatRegistry.Set("date-time", (value) => IsDateTime(value, true));
  FormatRegistry.Set("date", (value) => IsDate(value));
  FormatRegistry.Set("time", (value) => IsTime(value));
  FormatRegistry.Set("email", (value) => IsEmail(value));
  FormatRegistry.Set("uuid", (value) => IsUuid(value));
  FormatRegistry.Set("url", (value) => IsUrl(value));
  FormatRegistry.Set("ipv6", (value) => IsIPv6(value));
  FormatRegistry.Set("ipv4", (value) => IsIPv4(value));
};

const UUID = /^(?:urn:uuid:)?[\da-f]{8}-(?:[\da-f]{4}-){3}[\da-f]{12}$/i;
const DATE_TIME_SEPARATOR = /t|\s/i;
const TIME = /^(\d\d):(\d\d):(\d\d(?:\.\d+)?)(z|([+-])(\d\d)(?::?(\d\d))?)?$/i;
const DATE = /^(\d{4})-(\d{2})-(\d{2})$/;
const DAYS = [0, 31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31];
const IPV4 =
  /^(?:(?:25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)\.){3}(?:25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)$/;
const IPV6 =
  /^((([\da-f]{1,4}:){7}([\da-f]{1,4}|:))|(([\da-f]{1,4}:){6}(:[\da-f]{1,4}|((25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)(\.(25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)){3})|:))|(([\da-f]{1,4}:){5}(((:[\da-f]{1,4}){1,2})|:((25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)(\.(25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)){3})|:))|(([\da-f]{1,4}:){4}(((:[\da-f]{1,4}){1,3})|((:[\da-f]{1,4})?:((25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)(\.(25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)){3}))|:))|(([\da-f]{1,4}:){3}(((:[\da-f]{1,4}){1,4})|((:[\da-f]{1,4}){0,2}:((25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)(\.(25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)){3}))|:))|(([\da-f]{1,4}:){2}(((:[\da-f]{1,4}){1,5})|((:[\da-f]{1,4}){0,3}:((25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)(\.(25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)){3}))|:))|(([\da-f]{1,4}:)(((:[\da-f]{1,4}){1,6})|((:[\da-f]{1,4}){0,4}:((25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)(\.(25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)){3}))|:))|(:(((:[\da-f]{1,4}){1,7})|((:[\da-f]{1,4}){0,5}:((25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)(\.(25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)){3}))|:)))$/i;
const URL =
  /^(?:https?|wss?|ftp):\/\/(?:\S+(?::\S*)?@)?(?:(?!(?:10|127)(?:\.\d{1,3}){3})(?!(?:169\.254|192\.168)(?:\.\d{1,3}){2})(?!172\.(?:1[6-9]|2\d|3[0-1])(?:\.\d{1,3}){2})(?:[1-9]\d?|1\d\d|2[01]\d|22[0-3])(?:\.(?:1?\d{1,2}|2[0-4]\d|25[0-5])){2}(?:\.(?:[1-9]\d?|1\d\d|2[0-4]\d|25[0-4]))|(?:(?:[a-z0-9\u{00A1}-\u{FFFF}]+-)*[a-z0-9\u{00A1}-\u{FFFF}]+)(?:\.(?:[a-z0-9\u{00A1}-\u{FFFF}]+-)*[a-z0-9\u{00A1}-\u{FFFF}]+)*(?:\.(?:[a-z\u{00A1}-\u{FFFF}]{2,})))(?::\d{2,5})?(?:\/[^\s]*)?$/iu;
const EMAIL =
  // eslint-disable-next-line unicorn/better-regex
  /^[\w!#$%&'*+/=?^`{|}~-]+(?:\.[\w!#$%&'*+/=?^`{|}~-]+)*@(?:[a-z\d](?:[a-z\d-]*[a-z\d])?\.)+[a-z\d](?:[a-z\d-]*[a-z\d])?$/i;
function IsLeapYear(year: number): boolean {
  return year % 4 === 0 && (year % 100 !== 0 || year % 400 === 0);
}

function IsDate(str: string): boolean {
  const matches: string[] | undefined = DATE.exec(str) ?? undefined;
  if (!matches) {
    return false;
  }

  const year = Number(matches[1]);
  const month = Number(matches[2]);
  const day = Number(matches[3]);
  return (
    month >= 1 &&
    month <= 12 &&
    day >= 1 &&
    day <= (month === 2 && IsLeapYear(year) ? 29 : DAYS[month]!)
  );
}

function IsTime(str: string, strictTimeZone?: boolean): boolean {
  const matches: string[] | undefined = TIME.exec(str) ?? undefined;
  if (!matches) {
    return false;
  }

  const hr = Number(matches[1]);
  const min = Number(matches[2]);
  const sec = Number(matches[3]);
  const tz: string | undefined = matches[4];
  const tzSign: number = matches[5] === "-" ? -1 : 1;
  const tzH = Number(matches[6] || 0);
  const tzM = Number(matches[7] || 0);
  if (tzH > 23 || tzM > 59 || (strictTimeZone && !tz)) {
    return false;
  }

  if (hr <= 23 && min <= 59 && sec < 60) {
    return true;
  }

  const utcMin = min - tzM * tzSign;
  const utcHr = hr - tzH * tzSign - (utcMin < 0 ? 1 : 0);
  return (
    (utcHr === 23 || utcHr === -1) &&
    (utcMin === 59 || utcMin === -1) &&
    sec < 61
  );
}

function IsDateTime(value: string, strictTimeZone?: boolean): boolean {
  const dateTime: string[] = value.split(DATE_TIME_SEPARATOR);
  return (
    dateTime.length === 2 &&
    IsDate(dateTime[0]!) &&
    IsTime(dateTime[1]!, strictTimeZone)
  );
}

function IsEmail(value: string) {
  return EMAIL.test(value);
}

function IsUuid(value: string) {
  return UUID.test(value);
}

function IsUrl(value: string) {
  return URL.test(value);
}

function IsIPv6(value: string) {
  return IPV6.test(value);
}

function IsIPv4(value: string) {
  return IPV4.test(value);
}

// After this, implement in fastify
            
setupFormatRegistry();
const server = fastify(serverOptions)
  .setValidatorCompiler(TypeBoxValidatorCompiler)
  .withTypeProvider<TypeBoxTypeProvider>();