Wayback Machine Small Bug Fixes

Fixes encoded ampersands on Wayback Machine's captures graph and problems that arise when trailing slashes are missing in an URL and other small issues universally present in all crawled sites

目前為 2016-06-07 提交的版本,檢視 最新版本

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你需要先安裝一款使用者樣式管理器擴展,比如 Stylus,才能安裝此樣式

你需要先安裝一款使用者樣式管理器擴展後才能安裝此樣式

你需要先安裝一款使用者樣式管理器擴展後才能安裝此樣式

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// ==UserScript==
// @name          Wayback Machine Small Bug Fixes
// @namespace     DoomTay
// @description   Fixes encoded ampersands on Wayback Machine's captures graph and problems that arise when trailing slashes are missing in an URL and other small issues universally present in all crawled sites
// @version       1.3.0
// @include       http://web.archive.org/web/*
// @include       http://wayback.archive.org/web/*
// @include       https://web.archive.org/web/*
// @include       https://wayback.archive.org/web/*
// @run-at        document-start
// @exclude       /\*/
// @grant         none

// ==/UserScript==

var lastFolder = window.location.href.substring(window.location.href.lastIndexOf("/") + 1);
var pics = document.images;
var backgrounds = document.querySelectorAll("[background]");
var shouldHaveTrailingSlash = (window.location.href.lastIndexOf(".") < window.location.href.lastIndexOf("/") || window.location.href.substring(window.location.href.lastIndexOf("//") + 2) == lastFolder) && !lastFolder.includes("?");
var hasTrailingSlash = window.location.href.endsWith("/");
var domain = window.location.href.substring(0,window.location.href.indexOf("/",window.location.href.lastIndexOf("//") + 2));
var isInDomain = window.location.href == domain || window.location.href == domain + "/";
var timestamp = /web\/(\d{1,14})/.exec(window.location.href)[1];
var checkedNodes = [];

if(!document.getElementsByTagName("base")[0])
{
	var base = document.createElement("base");
	if(shouldHaveTrailingSlash && !hasTrailingSlash) base.href = window.location.href + "/";
	else if((!hasTrailingSlash && !shouldHaveTrailingSlash) || hasTrailingSlash) base.href = document.baseURI;
	else base.href = domain + "/";
	document.head.appendChild(base);
}

function relativeToAbsolute(bgURL)
{
	var img = new Image();
	img.src = bgURL;
	return img.src;
}

function fixURL(URL)
{
	if(URL.includes(document.domain)) return domain + URL.substring(URL.indexOf("/",URL.lastIndexOf("//") + 2));
	else return domain.substring(0,domain.indexOf("/http") + 1) + URL.substring(URL.indexOf("/http") + 1);
}

function fixImage(pic)
{
	var oldSrc = pic.getAttribute("src");
	if(!oldSrc) return;
	if(oldSrc.includes("archive.org")) oldSrc = oldSrc.substring(oldSrc.indexOf(document.domain) + document.domain.length);
	if(oldSrc.startsWith("/")&& !oldSrc.startsWith("/web/")) pic.setAttribute("src",domain + oldSrc);
	else if (oldSrc.startsWith("../") && isInDomain) pic.setAttribute("src",oldSrc.substring(3));
	else pic.setAttribute("src",domain.substring(0,domain.indexOf("/http") + 1) + pic.src.substring(pic.src.indexOf("/http") + 1));
}

function changeBackground(node, newBackground)
{
	if(node.background) node.background = newBackground;
	else if(node.getAttribute("background")) node.setAttribute("background",newBackground);
}

var observer = new MutationObserver(function(mutations) {
	mutations.forEach(function(mutation) {	
		if(mutation.target.nodeName != "HEAD" && mutation.target.nodeName != "BODY") checkMutations(mutation.target);
		if(checkedNodes.includes(mutation.target)) checkedNodes.splice(checkedNodes.indexOf(mutation.target),1);
		for(var i = 0; i < mutation.addedNodes.length; i++) 
		{
			if(mutation.addedNodes[i].nodeName == "BASE")
			{
				if(base) document.head.removeChild(base);
				Array.prototype.forEach.call(pics, function(pic) {
					pic.src = pic.src;
				});
				Array.prototype.forEach.call(backgrounds, function(background) {
					background.setAttribute("background",background.getAttribute("background"));
				});
			}
			else if(mutation.addedNodes[i].nodeName == "SCRIPT" && mutation.addedNodes[i].innerHTML.includes("__wm.bt()"))
			{
				var toolbarScript = Array.prototype.find.call(mutation.addedNodes[i].parentNode.childNodes,node => node.innerHTML && node.innerHTML.includes("wbCurrentUrl") && node.innerHTML.includes("&amp;"));
				if(toolbarScript)
				{
					var replacement = document.createElement("script");
					replacement.type = toolbarScript.type;
					var currentURL = toolbarScript.innerHTML.match(/wbCurrentUrl = "(.+)";/)[1];
					replacement.innerHTML = toolbarScript.innerHTML.replace(currentURL,decodeHTML(currentURL));
					replacement.innerHTML = replacement.innerHTML.replace("bt:bootstrap}","bt:bootstrap,ff:\"balls\"}");
					toolbarScript.parentNode.replaceChild(replacement,toolbarScript);
				}
			}
			else checkMutations(mutation.addedNodes[i]);
		}
	});
});

function decodeHTML(text) {
    var textarea = document.createElement("textarea");
    textarea.innerHTML = text;
    return textarea.value;
}

function checkMutations(node)
{
	if(document.getElementById("wm-ipp") && document.getElementById("wm-ipp").contains(node)) return;
	if(node.nodeType == 1)
	{
		if(node.nodeName == "IMG" && !node.src.includes("/web/") && !node.src.includes("data:"))
		{
			observer.disconnect();
			fixImage(node);
			observer.observe(document.body || document, config);
		}
		var bg = node.background || node.getAttribute("background");
		if(bg && !relativeToAbsolute(bg).includes(document.domain + "/web"))
		{
			observer.disconnect();
			changeBackground(node,fixURL(relativeToAbsolute(bg)));
			observer.observe(document.body || document, config);
		}
		if(node.nodeName == "A" && node.href.includes("/http://web.archive.org/web/")) node.href = node.href.substring(node.href.indexOf("/http://web.archive.org/web/") + 1);
	}
	checkedNodes.push(node);
	for(var n = 0; n < node.childNodes.length; n++)
	{
		if(!checkedNodes.includes(node.childNodes[n])) checkMutations(node.childNodes[n]);
	}
}

var config = { attributes: true, childList: true, subtree: true };
observer.observe(document.body || document, config);