mirror of
https://github.com/Bubka/2FAuth.git
synced 2024-12-02 21:26:42 +01:00
15 lines
541 B
JavaScript
Vendored
15 lines
541 B
JavaScript
Vendored
/**
|
|
* A simple test to determine if a hostname is a properly-formatted domain name
|
|
*
|
|
* A "valid domain" is defined here: https://url.spec.whatwg.org/#valid-domain
|
|
*
|
|
* Regex sourced from here:
|
|
* https://www.oreilly.com/library/view/regular-expressions-cookbook/9781449327453/ch08s15.html
|
|
*/
|
|
export function isValidDomain(hostname) {
|
|
return (
|
|
// Consider localhost valid as well since it's okay wrt Secure Contexts
|
|
hostname === 'localhost' ||
|
|
/^([a-z0-9]+(-[a-z0-9]+)*\.)+[a-z]{2,}$/i.test(hostname)
|
|
);
|
|
} |