59 lines
1.3 KiB
JavaScript
59 lines
1.3 KiB
JavaScript
|
"use strict";
|
||
|
|
const hasToStringTag = require("has-to-string-tag-x");
|
||
|
|
const isObject = require("is-object");
|
||
|
|
|
||
|
|
const toString = Object.prototype.toString;
|
||
|
|
const urlClass = "[object URL]";
|
||
|
|
|
||
|
|
const hash = "hash";
|
||
|
|
const host = "host";
|
||
|
|
const hostname = "hostname";
|
||
|
|
const href = "href";
|
||
|
|
const password = "password";
|
||
|
|
const pathname = "pathname";
|
||
|
|
const port = "port";
|
||
|
|
const protocol = "protocol";
|
||
|
|
const search = "search";
|
||
|
|
const username = "username";
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
const isURL = (url, supportIncomplete/*=false*/) =>
|
||
|
|
{
|
||
|
|
if (!isObject(url)) return false;
|
||
|
|
|
||
|
|
// Native implementation in older browsers
|
||
|
|
if (!hasToStringTag && toString.call(url) === urlClass) return true;
|
||
|
|
|
||
|
|
if (!(href in url)) return false;
|
||
|
|
if (!(protocol in url)) return false;
|
||
|
|
if (!(username in url)) return false;
|
||
|
|
if (!(password in url)) return false;
|
||
|
|
if (!(hostname in url)) return false;
|
||
|
|
if (!(port in url)) return false;
|
||
|
|
if (!(host in url)) return false;
|
||
|
|
if (!(pathname in url)) return false;
|
||
|
|
if (!(search in url)) return false;
|
||
|
|
if (!(hash in url)) return false;
|
||
|
|
|
||
|
|
if (supportIncomplete !== true)
|
||
|
|
{
|
||
|
|
if (!isObject(url.searchParams)) return false;
|
||
|
|
|
||
|
|
// TODO :: write a separate isURLSearchParams ?
|
||
|
|
}
|
||
|
|
|
||
|
|
return true;
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
isURL.lenient = url =>
|
||
|
|
{
|
||
|
|
return isURL(url, true);
|
||
|
|
};
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
module.exports = isURL;
|