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gabrysiak/parseUrl.js

Created October 15, 2014 20:42
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Javascript function that returns parsed URL object
Raw
parseUrl.js
/**
* Parse url
* @param {string} url Url string
* @return {object} Parsed url object
*
* Example Use:
* var parsedUrl = parseURL('http://drive.google.com/search');
*
* parsedUrl {
* domain: "drive.google.com",
* host: "google",
* parentDomain: "google.com",
* path: "search",
* protocol: "http",
* subdomain: "drive",
* tld: "com"
* }
*
*/
function parseURL(url){
var parsedUrl = {}
if ( url == null || url.length == 0 )
return parsedUrl;
var protocol = url.indexOf('://'),
remainingUrl = url.substr(protocol + 3, url.length),
domain = remainingUrl.indexOf('/');
parsedUrl.protocol = url.substr(0,protocol);
domain = domain == -1 ? remainingUrl.length - 1 : domain;
parsedUrl.domain = remainingUrl.substr(0, domain);
parsedUrl.path = domain == -1 || domain + 1 == remainingUrl.length ? null : remainingUrl.substr(domain + 1, remainingUrl.length);
var domainParts = parsedUrl.domain.split('.');
switch ( domainParts.length ){
case 2:
parsedUrl.subdomain = null;
parsedUrl.host = domainParts[0];
parsedUrl.tld = domainParts[1];
break;
case 3:
parsedUrl.subdomain = domainParts[0];
parsedUrl.host = domainParts[1];
parsedUrl.tld = domainParts[2];
break;
case 4:
parsedUrl.subdomain = domainParts[0];
parsedUrl.host = domainParts[1];
parsedUrl.tld = domainParts[2] + '.' + domainParts[3];
break;
}
parsedUrl.parentDomain = parsedUrl.host + '.' + parsedUrl.tld;
return parsedUrl;
}
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