Google Search Link Checker

Google search Link Checker

Adds 'No Access' to Google search links if inaccessible
Від 18.06.2025. Дивіться остання версія.
Задати запитання, залишити відгук, або повідомити про скрипт.
Wrap lines
// ==UserScript==
// @name         Google search Link Checker
// @namespace    http://tampermonkey.net/
// @version      1.0
// @description  Adds 'No Access' to Google search links if inaccessible
// @author       Bui Quoc Dung
// @match        https://www.google.com/search*
// @grant        GM_xmlhttpRequest
// @connect      *
// ==/UserScript==

(function () {
    'use strict';

    async function checkLinkStatus(url) {
        return new Promise((resolve) => {
            GM_xmlhttpRequest({
                method: "HEAD",
                url,
                timeout: 5000,
                onload: res => {
                    const ok = (res.status >= 200 && res.status < 400) || res.status === 0 || res.status === 403 || res.status === 405;
                    resolve(ok);
                },
                onerror: () => resolve(false),
                ontimeout: () => resolve(false)
            });
        });
    }

    function addInaccessibleTag(link) {
        if (!link || link.dataset.statusChecked) return;
        link.dataset.statusChecked = 'true';
        const url = link.href;
        if (!url || url.startsWith('javascript:') || url.startsWith('#')) return;

        checkLinkStatus(url).then(accessible => {
            if (!accessible) {
                if (link.querySelector('span.no-access-tag')) return;
                const tag = document.createElement('span');
                tag.textContent = ' No Access';
                tag.className = 'no-access-tag';
                tag.style.color = 'green';
                tag.style.fontSize = '0.8em';
                tag.style.marginLeft = '4px';

                const h3 = link.querySelector('h3');
                (h3 || link).appendChild(tag);
            }
        });
    }

    let scanTimeoutId = null;
    function scanLinksDebounced() {
        clearTimeout(scanTimeoutId);
        scanTimeoutId = setTimeout(() => {
            document.querySelectorAll('span.V9tjod a.zReHs').forEach(addInaccessibleTag);
            document.querySelectorAll('div.g a:has(h3), div.MjjYud a:has(h3), div.hlcw0c a:has(h3)').forEach(addInaccessibleTag);
        }, 300);
    }

    const observer = new MutationObserver(mutations => {
        for (const m of mutations) {
            for (const node of m.addedNodes) {
                if (node.nodeType === 1 &&
                    (node.querySelector('span.V9tjod a.zReHs, div.g a:has(h3), div.MjjYud a:has(h3), div.hlcw0c a:has(h3)') ||
                     node.matches('.g, .MjjYud, .hlcw0c'))) {
                    scanLinksDebounced();
                    return;
                }
            }
        }
    });

    const container = document.getElementById('center_col') || document.getElementById('rcnt') || document.body;
    observer.observe(container, { childList: true, subtree: true });

    if (document.readyState === 'loading') {
        window.addEventListener('DOMContentLoaded', () => setTimeout(scanLinksDebounced, 1000));
    } else {
        setTimeout(scanLinksDebounced, 1000);
    }
})();