mirror of
https://github.com/DIYgod/RSSHub.git
synced 2025-12-02 18:18:06 +08:00
17 lines
364 B
JavaScript
17 lines
364 B
JavaScript
/**
|
|
* Check if a sub-domain is valid
|
|
* @param {String} hostname sub-domain
|
|
* @returns {Boolean} true if valid
|
|
*/
|
|
const isValidHost = (hostname) => {
|
|
if (typeof hostname !== 'string') {
|
|
return false;
|
|
}
|
|
const regex = /^[a-zA-Z0-9]([a-zA-Z0-9-]{0,61}[a-zA-Z0-9])?$/;
|
|
return regex.test(hostname);
|
|
};
|
|
|
|
module.exports = {
|
|
isValidHost,
|
|
};
|