util-helpers/lib/isIPv6.js

一个基于业务场景的工具方法库

'use strict';

var ut2 = require('ut2');

var reg = /^((([0-9A-F]{1,4}:){7}([0-9A-F]{1,4}|:))|(([0-9A-F]{1,4}:){6}(:[0-9A-F]{1,4}|((25[0-5]|2[0-4]\d|1\d\d|\d{1,2})(\.(25[0-5]|2[0-4]\d|1\d\d|\d{1,2})){3})|:))|(([0-9A-F]{1,4}:){5}(((:[0-9A-F]{1,4}){1,2})|:((25[0-5]|2[0-4]\d|1\d\d|\d{1,2})(\.(25[0-5]|2[0-4]\d|1\d\d|\d{1,2})){3})|:))|(([0-9A-F]{1,4}:){4}(((:[0-9A-F]{1,4}){1,3})|((:[0-9A-F]{1,4})?:((25[0-5]|2[0-4]\d|1\d\d|\d{1,2})(\.(25[0-5]|2[0-4]\d|1\d\d|\d{1,2})){3}))|:))|(([0-9A-F]{1,4}:){3}(((:[0-9A-F]{1,4}){1,4})|((:[0-9A-F]{1,4}){0,2}:((25[0-5]|2[0-4]\d|1\d\d|\d{1,2})(\.(25[0-5]|2[0-4]\d|1\d\d|\d{1,2})){3}))|:))|(([0-9A-F]{1,4}:){2}(((:[0-9A-F]{1,4}){1,5})|((:[0-9A-F]{1,4}){0,3}:((25[0-5]|2[0-4]\d|1\d\d|\d{1,2})(\.(25[0-5]|2[0-4]\d|1\d\d|\d{1,2})){3}))|:))|(([0-9A-F]{1,4}:){1}(((:[0-9A-F]{1,4}){1,6})|((:[0-9A-F]{1,4}){0,4}:((25[0-5]|2[0-4]\d|1\d\d|\d{1,2})(\.(25[0-5]|2[0-4]\d|1\d\d|\d{1,2})){3}))|:))|(:(((:[0-9A-F]{1,4}){1,7})|((:[0-9A-F]{1,4}){0,5}:((25[0-5]|2[0-4]\d|1\d\d|\d{1,2})(\.(25[0-5]|2[0-4]\d|1\d\d|\d{1,2})){3}))|:)))(%.+)?$/i;
function isIPv6(value) {
    var valueStr = ut2.toString(value);
    return reg.test(valueStr);
}

module.exports = isIPv6;