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URL Stripper

Takes offsite links that stick the original URL into an onsite link with extra parameters and changes the href to that original URL.

Verzia zo dňa 28.11.2015. Pozri najnovšiu verziu.

// ==UserScript==
// @name          URL Stripper
// @namespace     DoomTay
// @description   Takes offsite links that stick the original URL into an onsite link with extra parameters and changes the href to that original URL.
// @version       1.1.1

// ==/UserScript==

var links = document.links;

var isInArchive = window.location.hostname == "web.archive.org";

var specialCases = [];
	specialCases["https://www.youtube.com/redirect"] = "q";
	
var skipList = ["http://tineye.com/search","http://saucenao.com/search.php","http://web.archive.org/web/form-submit.jsp","wayback/available"];

var archivePrefix = isInArchive ? /http:\/\/web\.archive\.org\/web\/\d{1,14}\//.exec(window.location.href) : "";

var observer = new MutationObserver(function(mutations) {
	mutations.forEach(function(mutation) {
		if(mutation.type == "attributes" && mutation.attributeName == "href") replaceURL(mutation.target);
	});    
});

var config = { attributes: true, childList: true, characterData: true };


for(var l = 0; l < links.length; l++)
{
	if(skipList.some(elem => links[l].href.indexOf(elem) > -1)) continue;
	observer.observe(links[l], config);
	replaceURL(links[l]);
}

function replaceURL(link)
{
	var testURL = URLToObject(link.href);
	if(testURL == null) return;
	if(specialCases.hasOwnProperty(testURL.base))
	{
		link.href = archivePrefix + testURL[specialCases[testURL.base]];
		return;
	}
	if(testURL.hasOwnProperty("url")) link.href = archivePrefix + testURL.url;
	else if(testURL.hasOwnProperty("URL")) link.href = archivePrefix + testURL.URL;
}

function URLToObject(url)
{
	var URLBits = {};

	var splitURL = url.split("?");

	if(splitURL[1] == undefined) return null;
	URLBits.base = splitURL[0];
	var params = splitURL[1].split("&");

	for(var i = 0; i < params.length; i++)
	{
		var splitParameter = params[i].split("=");
		URLBits[splitParameter[0]] = decodeURIComponent(splitParameter[1]);
	}

	return URLBits;
}