Bing Link Redirect Decoder

Decode Bing redirect URLs and replace them with the actual URLs.

You will need to install an extension such as Tampermonkey, Greasemonkey or Violentmonkey to install this script.

You will need to install an extension such as Tampermonkey or Violentmonkey to install this script.

You will need to install an extension such as Tampermonkey or Violentmonkey to install this script.

You will need to install an extension such as Tampermonkey or Userscripts to install this script.

You will need to install an extension such as Tampermonkey to install this script.

You will need to install a user script manager extension to install this script.

(I already have a user script manager, let me install it!)

You will need to install an extension such as Stylus to install this style.

You will need to install an extension such as Stylus to install this style.

You will need to install an extension such as Stylus to install this style.

You will need to install a user style manager extension to install this style.

You will need to install a user style manager extension to install this style.

You will need to install a user style manager extension to install this style.

(I already have a user style manager, let me install it!)

// ==UserScript==
// @name         Bing Link Redirect Decoder
// @namespace    MickyFoley
// @version      1.0
// @description  Decode Bing redirect URLs and replace them with the actual URLs.
// @author       MickyFoley
// @match        *://*.bing.com/*
// @license      MIT
// @grant        none
// ==/UserScript==

(function() {
    'use strict';

    function decodeBingURL(encodedURL) {
        // Modify the encoded URL to match Base64 encoding
        let modifiedEncodedURL = encodedURL.replace('-', '+').replace('_', '/');

        // Add padding if necessary
        let paddingNeeded = modifiedEncodedURL.length % 4;
        if (paddingNeeded) {
            modifiedEncodedURL += '='.repeat(4 - paddingNeeded);
        }

        // Decode the URL and return
        return atob(modifiedEncodedURL);
    }

    function processLinks() {
        const links = document.querySelectorAll('a[href*="bing.com/ck/"]');
        links.forEach(link => {
            const urlMatch = link.href.match(/u=([^&]+)/);
            if (urlMatch && urlMatch[1]) {
                const decodedURL = decodeBingURL(urlMatch[1].slice(2));
                link.href = decodedURL;
                link.title = "Decoded URL: " + decodedURL;
            }
        });
    }

    // Process links when the page loads and also when new content is added
    processLinks();
    new MutationObserver(processLinks).observe(document.body, { childList: true, subtree: true });
})();