☰

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.

目前為 2016-01-29 提交的版本，檢視 最新版本。

// ==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       1.1.6
// @exclude       *iqdb.org/*
// @exclude       *saucenao.com/*

// ==/UserScript==

var links = document.links;

var isInArchive = window.location.hostname == "web.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";
	
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"];

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") replaceURL(mutation.target);
	});    
});

var config = { attributes: true, childList: true, characterData: true, subtree: true, attributeFilter: ["href"] };
observer.observe(document.body, config);

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

function replaceURL(link)
{
	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(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("=");
		if(splitParameter[1] == undefined) continue;
		URLBits[splitParameter[0]] = splitParameter[1];
		while(URLBits[splitParameter[0]].indexOf("%") > -1) URLBits[splitParameter[0]] = decodeURIComponent(URLBits[splitParameter[0]]);
	}

	return URLBits;
}