You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
22 lines
534 B
22 lines
534 B
4 months ago
|
import assertString from './util/assertString';
|
||
|
|
import isIP from './isIP';
|
||
|
|
var subnetMaybe = /^\d{1,2}$/;
|
||
|
|
export default function isIPRange(str) {
|
||
|
|
assertString(str);
|
||
|
|
var parts = str.split('/'); // parts[0] -> ip, parts[1] -> subnet
|
||
|
|
|
||
|
|
if (parts.length !== 2) {
|
||
|
|
return false;
|
||
|
|
}
|
||
|
|
|
||
|
|
if (!subnetMaybe.test(parts[1])) {
|
||
|
|
return false;
|
||
|
|
} // Disallow preceding 0 i.e. 01, 02, ...
|
||
|
|
|
||
|
|
|
||
|
|
if (parts[1].length > 1 && parts[1].startsWith('0')) {
|
||
|
|
return false;
|
||
|
|
}
|
||
|
|
|
||
|
|
return isIP(parts[0], 4) && parts[1] <= 32 && parts[1] >= 0;
|
||
|
|
}
|