mirror of
https://github.com/bitwarden/browser
synced 2025-12-11 22:03:36 +00:00
5f2eecd7be
* use shared expiration year normalization util function * use shared exp year normalization in web and desktop client * handle cases where input has leading zeroes * add utils tests * handle cases where input is all zeroes
43 lines
1.6 KiB
TypeScript
43 lines
1.6 KiB
TypeScript
type NonZeroIntegers = 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9;
|
|
type Year = `${NonZeroIntegers}${NonZeroIntegers}${0 | NonZeroIntegers}${0 | NonZeroIntegers}`;
|
|
|
|
/**
|
|
* Takes a string or number value and returns a string value formatted as a valid 4-digit year
|
|
*
|
|
* @export
|
|
* @param {(string | number)} yearInput
|
|
* @return {*} {(Year | null)}
|
|
*/
|
|
export function normalizeExpiryYearFormat(yearInput: string | number): Year | null {
|
|
// The input[type="number"] is returning a number, convert it to a string
|
|
// An empty field returns null, avoid casting `"null"` to a string
|
|
const yearInputIsEmpty = yearInput == null || yearInput === "";
|
|
let expirationYear = yearInputIsEmpty ? null : `${yearInput}`;
|
|
|
|
// Exit early if year is already formatted correctly or empty
|
|
if (yearInputIsEmpty || /^[1-9]{1}\d{3}$/.test(expirationYear)) {
|
|
return expirationYear as Year;
|
|
}
|
|
|
|
expirationYear = expirationYear
|
|
// For safety, because even input[type="number"] will allow decimals
|
|
.replace(/[^\d]/g, "")
|
|
// remove any leading zero padding (leave the last leading zero if it ends the string)
|
|
.replace(/^[0]+(?=.)/, "");
|
|
|
|
if (expirationYear === "") {
|
|
expirationYear = null;
|
|
}
|
|
|
|
// given the context of payment card expiry, a year character length of 3, or over 4
|
|
// is more likely to be a mistake than an intentional value for the far past or far future.
|
|
if (expirationYear && expirationYear.length !== 4) {
|
|
const paddedYear = ("00" + expirationYear).slice(-2);
|
|
const currentCentury = `${new Date().getFullYear()}`.slice(0, 2);
|
|
|
|
expirationYear = currentCentury + paddedYear;
|
|
}
|
|
|
|
return expirationYear as Year | null;
|
|
}
|