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YouTube Ad Blocker (Updated)

Blocks YouTube ads effectively without detection.

当前为 2025-01-19 提交的版本，查看 最新版本。

// ==UserScript==
// @name         YouTube Ad Blocker (Updated)
// @namespace    https://example.com/
// @version      1.0
// @description  Blocks YouTube ads effectively without detection.
// @author       hunter
// @match        *://*.youtube.com/*
// @grant        GM_addStyle
// @run-at       document-start
// ==/UserScript==

(function() {
    'use strict';

    // Selectors for common ad elements
    const adSelectors = [
        '.ytp-ad-player-overlay', // The overlay ad
        '.ytp-ad-module',         // The ad container
        '.ytp-ad-text',            // Text-based ads
        '.ad-interrupting',        // Popup or interrupting ads
        '.video-ads',              // Video ads container
        '.ytp-ad-image-overlay'    // Image-based overlay ads
    ];

    // URL patterns for blocking network requests related to ads
    const adPatterns = [
        'googleads.g.doubleclick.net',
        'youtube.com/api/stats/playback',
        'youtube.com/get_video_info'
    ];

    // MutationObserver to remove ads from the DOM
    const observer = new MutationObserver(() => {
        adSelectors.forEach(selector => {
            document.querySelectorAll(selector).forEach(ad => ad.remove());
        });
    });

    // Start observing the DOM for ads
    const startObserver = () => {
        observer.observe(document.body, {
            childList: true,
            subtree: true
        });
    };

    // Block ad-related network requests by overriding fetch and XMLHttpRequest
    const blockNetworkAds = () => {
        // Override fetch
        const originalFetch = window.fetch;
        window.fetch = function(url, options) {
            if (url && adPatterns.some(pattern => url.includes(pattern))) {
                console.log('Blocked fetch request:', url);
                return new Promise(() => {}); // Cancel the request
            }
            return originalFetch.apply(this, arguments);
        };

        // Override XMLHttpRequest
        const originalXhrOpen = XMLHttpRequest.prototype.open;
        XMLHttpRequest.prototype.open = function(method, url) {
            if (adPatterns.some(pattern => url.includes(pattern))) {
                console.log('Blocked XMLHttpRequest:', url);
                return;
            }
            return originalXhrOpen.apply(this, arguments);
        };
    };

    // Inject styles to hide ads that might be missed
    GM_addStyle(`
        ${adSelectors.join(', ')} {
            display: none !important;
            visibility: hidden !important;
        }
    `);

    // Initialize the script functionality
    const initialize = () => {
        startObserver();
        blockNetworkAds();
    };

    // Run the script after the page has loaded
    window.addEventListener('load', initialize);
})();