URL Stripper

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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.
Fra og med 08.08.2016. Se den nyeste version.
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// ==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       1.1.8
// @exclude       *iqdb.org/*
// @exclude       *saucenao.com/*
// @exclude       *imgops.com/*
// @exclude       *.svg
 
// ==/UserScript==
 
var links = document.links;
 
var isInArchive = window.location.hostname == "web.archive.org" || window.location.hostname == "wayback.archive.org";;
 
var specialCases = [];
	specialCases["https://www.youtube.com/redirect"] = "q";
	specialCases["http://www.amazon.com/exec/obidos"] = "path";
	specialCases["http://t.umblr.com/redirect"] = "z";
	specialCases["http://image.baidu.com/search/redirect"] = "objurl";
	specialCases["http://l.facebook.com/"] = "u";
	
var blacklist = ["tineye.com/search","saucenao.com/search.php","web.archive.org/web/form-submit.jsp","wayback/available","iqdb.org","amazon.com","smashbros.com/wii/en_us/notify.html","multiez.com","regex.info"];
 
var archivePrefix = isInArchive ? /\/web\/\d{1,14}\//.exec(window.location.href) : "";
 
var observer = new MutationObserver(function(mutations) {
	mutations.forEach(function(mutation) {
		if(mutation.target.nodeName == "A" && !blacklist.some(elem => mutation.target.href.includes(elem))) replaceURL(mutation.target);
	});    
});
 
var config = { attributes: true, childList: true, subtree: true };
observer.observe(document.body, config);
 
for(var l = 0; l < links.length; l++)
{
	if(blacklist.some(elem => links[l].href.includes(elem))) continue;
	replaceURL(links[l]);
}
 
function replaceURL(link)
{
	if(link.href.indexOf("r.search.yahoo.com") > -1 && link.href.split(";") != link.href)
	{
		var URLBits = {};
		var splitURL = link.href.split(";");
		var params;
		if(splitURL[0].indexOf("/RU=") > -1 ) params = splitURL[0].split("/");
		else params = splitURL[1].split("/");
		
		for(var i = 0; i < params.length; i++)
		{
			var splitParameter = params[i].split("=");
			if(splitParameter[1] == undefined) continue;
			URLBits[splitParameter[0]] = decodeURIComponent(splitParameter[1]);
		}
		if(URLBits.hasOwnProperty("RU")) link.href = URLBits["RU"];
	}
	var testURL = URLToObject(link.href);
	if(testURL == null) return;
	if(link.href.substring(link.href.indexOf("?") + 1).indexOf("http") == 0)
	{
		var strippedURL = link.href.substring(link.href.indexOf("?") + 1);
		while(strippedURL.indexOf("%") > -1) strippedURL = decodeURIComponent(strippedURL);
		link.href = archivePrefix + strippedURL;
		return;
	}
	if(specialCases.hasOwnProperty(testURL.base))
	{
		link.href = archivePrefix + testURL[specialCases[testURL.base]];
		return;
	}
	if(link.href.indexOf("r.msn.com") > -1)
	{
		link.href = testURL.u;
		return;
	}
	if(testURL.hasOwnProperty("url")) link.href = archivePrefix + testURL.url;
}
 
function URLToObject(url)
{
	var URLBits = {};
 
	var splitURL = [url.substring(0,url.indexOf("?")),url.substring(url.indexOf("?") + 1)];
 
	if(splitURL[0] == "") return null;
	URLBits.base = splitURL[0];
	var params = splitURL[1].split("&");
 
	for(var i = 0; i < params.length; i++)
	{
		var splitParameter = params[i].split("=");
		if(splitParameter[1] == undefined) continue;
		URLBits[splitParameter[0].toLowerCase()] = splitParameter[1];
		while(URLBits[splitParameter[0].toLowerCase()].includes("%2F") || URLBits[splitParameter[0].toLowerCase()].includes("%3A")) URLBits[splitParameter[0].toLowerCase()] = decodeURIComponent(URLBits[splitParameter[0].toLowerCase()]);
	}
 
	return URLBits;
}