Clean up unnecessary hyperlink redirections and link shims
// ==UserScript==
// @name Link Sanitizer
// @description Clean up unnecessary hyperlink redirections and link shims
// @version 1.1.9
// @author cloux <cloux@rote.ch>
// @license WTFPL 2.0; http://www.wtfpl.net/about/
// @namespace https://github.com/cloux
// @homepage https://github.com/cloux/LinkSanitizer
// @supportURL https://github.com/cloux/LinkSanitizer
// @icon http://icons.iconarchive.com/icons/designbolts/seo/128/Natural-Link-icon.png
// @include *
// @run-at document-start
// ==/UserScript==
(function() {
// Limit contentType to "text/plain" or "text/html"
if ((document.contentType != undefined) && (document.contentType != "text/plain") && (document.contentType != "text/html")) {
console.log("Hyperlink Sanitizer - Not loading for content type " + document.contentType);
return;
}
// Sanitize single link
function sanitize(weblink) {
// skip non-http links
if (! /^http/.test(weblink)) {
return weblink;
}
// whitelisted services
if (/google\.[a-z]*\/(ServiceLogin|Logout|AccountChooser)/.test(weblink) || // google login service
/^https:\/\/translate\.google\./.test(weblink) || // Google translator
/^http.*(login|registration)[./?].*http/.test(weblink) || // aliexpress, heise.de
/\/oauth\?/.test(weblink) || // OAuth on aws.amazon.com
/\/signin[/?]/.test(weblink) || // amazon.com, google, gmail
/^https?:\/\/downloads\.sourceforge\.net\//.test(weblink) || // downloads.sourceforge.net
/^https?:\/\/(www\.)?facebook\.com\/sharer/.test(weblink) || // share on FB
/^https?:\/\/(www\.)?linkedin\.com\/share/.test(weblink) || // share on linkedin
/^https?:\/\/(www\.)?twitter\.com\/(intent\/tweet|share)/.test(weblink) || // tweet link
/^https?:\/\/(www\.)?pinterest\.com\/pin\/create\//.test(weblink) || // pinterest post
/^https?:\/\/(www\.)?getpocket\.com\/save/.test(weblink) || // save link to pocket
/^https?:\/\/[a-z.]*archive\.org\//.test(weblink) || // archive.org
/^https?:\/\/github\.com\//.test(weblink) || // Github
/^https:\/\/id\.atlassian\.com\//.test(weblink)) { // Atlassian Login
return weblink;
}
console.log("Hyperlink: " + weblink);
var strnew = weblink.replace(/^..*(https?(%3A|:)[^\\()&]*).*/, '$1');
strnew = strnew.replace(/%23/g, '#');
strnew = strnew.replace(/%26/g, '&');
strnew = strnew.replace(/%2F/g, '/');
strnew = strnew.replace(/%3A/g, ':');
strnew = strnew.replace(/%3D/g, '=');
strnew = strnew.replace(/%3F/g, '?');
// NOTE: %25 must be translated last
strnew = strnew.replace(/%25/g, '%');
console.log("SANITIZED: " + strnew);
return strnew;
}
// MutationObserver callback
function callback(mutationsList) {
// Query for elements
for (var mutation of mutationsList) {
switch(mutation.type) {
case "attributes":
// Sanitize single mutated element
if (/..https?(%3A|:)/.test(mutation.target.href)) {
// Avoid infinite callback loops and set target href only if it would actually change
var sanitizedLink = sanitize(mutation.target.href);
if (mutation.target.href != sanitizedLink) {
mutation.target.href = sanitizedLink;
}
}
break;
case "childList":
// Sanitize all new elements
for (var node of mutation.addedNodes) {
if ((typeof node.href !== 'undefined') && (/..https?(%3A|:)/.test(node.href))) {
node.href = sanitize(node.href);
}
}
break;
}
}
}
// Create an observer instance linked to the callback function
const MutationObserver = window.MutationObserver || window.WebKitMutationObserver || window.MozMutationObserver;
var observer = new MutationObserver(callback);
// Start observing added elements and changes of href attributes
observer.observe(window.document.documentElement, { attributeFilter: [ "href" ], childList: true, subtree: true });
})();