Google Spam Filter

Clean up Google Search spam links
目前為 2024-12-01 提交的版本，檢視最新版本。
安裝腳本 ?
Wrap lines
// ==UserScript==
// @name         Google Spam Filter
// @name:vi      Dọn dẹp link rác Google Search
// @namespace    http://tampermonkey.net/
// @version      1.4
// @description  Clean up Google Search spam links
// @description:vi  Dọn dẹp link rác trên Google Search
// @author       Yuusei
// @icon         https://www.google.com/favicon.ico
// @match        https://www.google.com/search*
// @grant        none
// @license      GPL-3.0-only
// ==/UserScript==

(function() {
    'use strict';

    // options domains
    const spamDomains = new Set([
        '.fr',
        '.pl',
    ]);

    // Cache for URLs checked
    const urlCache = new Map();
    const CACHE_EXPIRY = 12 * 60 * 60; // 12 hours

    // Check if the URL is spam
    function isSpamUrl(url) {
        const now = Date.now();
        
        // Check cache first
        if (urlCache.has(url)) {
            const {result, timestamp} = urlCache.get(url);
            if (now - timestamp < CACHE_EXPIRY) {
                return result;
            }
            urlCache.delete(url);
        }

        const urlLower = url.toLowerCase();
        let isSpam = false;

        // Check spam domains
        for (const domain of spamDomains) {
            if (urlLower.includes(domain)) {
                isSpam = true;
                break;
            }
        }

        // Save result to cache with timestamp
        urlCache.set(url, {
            result: isSpam,
            timestamp: now
        });
        
        return isSpam;
    }

    // Debounce function to prevent calling too many times
    function debounce(func, wait) {
        let timeout;
        return function executedFunction(...args) {
            const later = () => {
                clearTimeout(timeout);
                func(...args);
            };
            clearTimeout(timeout);
            timeout = setTimeout(later, wait);
        };
    }

    // Filter and hide spam results
    const filterSpamResults = debounce(() => {
        // Select all search results
        const searchResults = document.querySelectorAll('#search .g, #rso .g');
        let spamCount = 0;
        let totalResults = 0;
        
        searchResults.forEach(result => {
            totalResults++;
            
            // Get link and cite
            const link = result.querySelector('a');
            const cite = result.querySelector('cite');
            
            if (link && (
                isSpamUrl(link.href) || 
                (cite && isSpamUrl(cite.textContent))
            )) {
                // Hide spam results completely
                result.style.display = 'none';
                spamCount++;
            }
        });

        // Show notification about the number of spam links filtered
        if (spamCount > 0) {
            console.log(`Filtered ${spamCount}/${totalResults} spam results (${Math.round(spamCount/totalResults*100)}%)`);
        }
    }, 250);

    // Run when the page loads
    window.addEventListener('DOMContentLoaded', filterSpamResults);

    // Observe content changes (Google dynamic loading)
    const observer = new MutationObserver((mutations) => {
        if (mutations.some(mutation => mutation.addedNodes.length > 0)) {
            filterSpamResults();
        }
    });
    
    observer.observe(document.documentElement, {
        childList: true,
        subtree: true
    });
})();
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