40 lines
806 B
TypeScript
40 lines
806 B
TypeScript
|
import urlapi from 'url';
|
||
|
|
|
||
|
|
function sanitiseURL(string){
|
||
|
|
let url_
|
||
|
|
|
||
|
|
// http or https
|
||
|
|
if (!(string.substring(0, 7) === 'http://' || string.substring(0, 8) === 'https://')){
|
||
|
|
return null
|
||
|
|
}
|
||
|
|
|
||
|
|
try {
|
||
|
|
url_ = document.createElement('a')
|
||
|
|
url_.href = string
|
||
|
|
} catch (error) {
|
||
|
|
try {
|
||
|
|
url_ = urlapi.parse(string)
|
||
|
|
} catch (error) {
|
||
|
|
return null
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
// required (www.example.com)
|
||
|
|
if (!url_.hostname || url_.hostname === '' || url_.hostname === 'localhost'){
|
||
|
|
return null
|
||
|
|
}
|
||
|
|
|
||
|
|
// optional (/some/path)
|
||
|
|
// url_.pathname;
|
||
|
|
|
||
|
|
// optional (?name=value)
|
||
|
|
// url_.search;
|
||
|
|
|
||
|
|
// optional (#anchor)
|
||
|
|
// url_.hash;
|
||
|
|
|
||
|
|
return `${url_.protocol}//${url_.hostname}${url_.pathname || ''}${url_.search || ''}${url_.hash || ''}`
|
||
|
|
}
|
||
|
|
|
||
|
|
export { sanitiseURL }
|