iOS optimized video link collector with history poison blocker

video-link-collector-ios-with-history-blocker.user.js

// ==UserScript==
// @name         Video Link Collector + History Poison Blocker - iOS Optimized
// @namespace    http://tampermonkey.net/
// @version      1.5
// @description  Collect & copy all video links from page, and block back-button history traps.
// @match        *://www.thekamababa.com/*
// @match        *://desibf.com/*
// @match        *://www.xxxvideoindian2.com/*
// @run-at       document-start
// @grant        none
// @inject-into  page
// ==/UserScript==

(function () {
    'use strict';

    function installHistoryPoisonBlocker() {
        'use strict';

        if (history.__historyPoisonBlockerInstalled) {
            return;
        }

        var originalPushState = history.pushState.bind(history);
        var originalReplaceState = history.replaceState.bind(history);
        var WINDOW_MS = 3000;
        var SAME_URL_LIMIT = 2;
        var calls = [];

        function normalizeUrl(url) {
            if (url === undefined || url === null || url === '') {
                return location.href;
            }

            try {
                return new URL(String(url), location.href).href;
            } catch (error) {
                return String(url);
            }
        }

        function prune(now) {
            while (calls.length && now - calls[0].time > WINDOW_MS) {
                calls.shift();
            }
        }

        function shouldBlockPushState(url) {
            var now = Date.now();
            var target = normalizeUrl(url);
            var current = location.href;
            var sameUrlCount = 0;
            var i;

            if (url === undefined || url === null || url === '' || target === current) {
                return true;
            }

            prune(now);
            calls.push({ time: now, target: target });

            for (i = 0; i < calls.length; i += 1) {
                if (calls[i].target === current) {
                    sameUrlCount += 1;
                }
            }

            return target === current && sameUrlCount > SAME_URL_LIMIT;
        }

        Object.defineProperty(history, 'pushState', {
            configurable: true,
            writable: true,
            value: function pushStateGuard(state, title, url) {
                if (shouldBlockPushState(url)) {
                    console.warn('[History Poison Blocker] Blocked same-page history.pushState()', {
                        url: normalizeUrl(url),
                        state: state
                    });
                    return;
                }

                return originalPushState(state, title, url);
            }
        });

        Object.defineProperty(history, 'replaceState', {
            configurable: true,
            writable: true,
            value: function replaceStateGuard(state, title, url) {
                return originalReplaceState(state, title, url);
            }
        });

        try {
            Object.defineProperty(history, '__historyPoisonBlockerInstalled', {
                configurable: false,
                enumerable: false,
                value: true
            });
        } catch (error) {
            history.__historyPoisonBlockerInstalled = true;
        }
    }

    function installBlockerEarly() {
        try {
            installHistoryPoisonBlocker();
        } catch (error) {}

        try {
            var inject = document.createElement('script');
            inject.textContent = '(' + installHistoryPoisonBlocker.toString() + ')();';
            (document.documentElement || document.head || document).appendChild(inject);
            inject.parentNode.removeChild(inject);
        } catch (error) {}
    }

    installBlockerEarly();

    var allLinks = new Set();
    var scannedPages = {};
    var scanningPages = false;
    var observer = null;

    function addLink(url) {
        if (!url) {
            return;
        }

        try {
            url = new URL(String(url), location.href).href;
        } catch (error) {
            url = String(url);
        }

        if (isMediaUrl(url)) {
            allLinks.add(url);
        }
    }

    function isMediaUrl(url) {
        return /\.(mp4|m3u8|webm|mov|m4v|avi|mkv)(\?|#|$)/i.test(String(url || ''));
    }

    function decodeCleanTubePlayerUrl(url) {
        var q;
        var decoded;
        var match;

        if (!url || url.indexOf('player-x.php') === -1 || url.indexOf('q=') === -1) {
            return;
        }

        try {
            q = new URL(url, location.href).searchParams.get('q');
            decoded = decodeURIComponent(atob(q || ''));
            match = decoded.match(/<source[^>]+src=["']([^"']+)["']/i);

            if (match && match[1]) {
                addLink(match[1]);
            }
        } catch (error) {}
    }

    function collectFromHtml(html, baseUrl) {
        var doc;
        var media;
        var frames;
        var i;
        var src;

        try {
            doc = new DOMParser().parseFromString(html, 'text/html');
        } catch (error) {
            return;
        }

        media = doc.querySelectorAll('video[src], source[src], video[data-src], source[data-src], [data-video], [data-mp4], [data-trailer]');
        frames = doc.querySelectorAll('iframe[src]');

        for (i = 0; i < media.length; i += 1) {
            src = media[i].getAttribute('src') || media[i].getAttribute('data-src') || media[i].getAttribute('data-video') || media[i].getAttribute('data-mp4') || media[i].getAttribute('data-trailer');

            if (src) {
                try {
                    addLink(new URL(src, baseUrl).href);
                } catch (error) {
                    addLink(src);
                }
            }
        }

        for (i = 0; i < frames.length; i += 1) {
            src = frames[i].getAttribute('src');
            try {
                decodeCleanTubePlayerUrl(new URL(src, baseUrl).href);
            } catch (error) {
                decodeCleanTubePlayerUrl(src);
            }
        }
    }

    function collectLinkedPostMedia() {
        var links;
        var i;
        var href;
        var tasks = [];

        if (scanningPages || allLinks.size > 0 || location.hostname !== 'desibf.com') {
            return;
        }

        links = document.querySelectorAll('article.thumb-block a[href], .thumb-block a[href], .video-preview-item a[href]');
        scanningPages = true;

        for (i = 0; i < links.length && tasks.length < 24; i += 1) {
            href = links[i].href;

            if (!href || scannedPages[href] || href.indexOf(location.origin + '/') !== 0 || href.indexOf('/page/') !== -1 || href.indexOf('/tag/') !== -1 || href.indexOf('/category/') !== -1) {
                continue;
            }

            scannedPages[href] = true;
            tasks.push(fetch(href, { credentials: 'same-origin' }).then(function (response) {
                return response.text().then(function (html) {
                    collectFromHtml(html, response.url);
                });
            }).catch(function () {}));
        }

        Promise.all(tasks).then(function () {
            scanningPages = false;
        }).catch(function () {
            scanningPages = false;
        });
    }

    function collectLinks() {
        var articles = document.querySelectorAll('article[data-trailer]');
        var media = document.querySelectorAll('video[src], source[src], video[data-src], source[data-src], [data-video], [data-mp4], [data-trailer]');
        var frames = document.querySelectorAll('iframe[src]');
        var i;
        var el;
        var url;

        for (i = 0; i < articles.length; i += 1) {
            url = articles[i].getAttribute('data-trailer');
            addLink(url);
        }

        for (i = 0; i < media.length; i += 1) {
            el = media[i];
            addLink(el.getAttribute('src'));
            addLink(el.getAttribute('data-src'));
            addLink(el.getAttribute('data-video'));
            addLink(el.getAttribute('data-mp4'));
            addLink(el.getAttribute('data-trailer'));
        }

        for (i = 0; i < frames.length; i += 1) {
            decodeCleanTubePlayerUrl(frames[i].getAttribute('src'));
        }

        collectLinkedPostMedia();
    }

    function copyToClipboard(text) {
        if (navigator.clipboard && navigator.clipboard.writeText) {
            return navigator.clipboard.writeText(text).then(function () {
                return true;
            }).catch(function () {
                return fallbackCopyToClipboard(text);
            });
        }

        return Promise.resolve(fallbackCopyToClipboard(text));
    }

    function fallbackCopyToClipboard(text) {
        var textArea = document.createElement('textarea');
        var success = false;

        textArea.value = text;
        textArea.setAttribute('readonly', 'readonly');
        textArea.style.position = 'fixed';
        textArea.style.top = '0';
        textArea.style.left = '0';
        textArea.style.width = '1px';
        textArea.style.height = '1px';
        textArea.style.opacity = '0';
        textArea.style.zIndex = '-1';

        document.body.appendChild(textArea);
        textArea.focus();
        textArea.select();
        textArea.setSelectionRange(0, textArea.value.length);

        try {
            success = document.execCommand('copy');
        } catch (error) {
            success = false;
        }

        document.body.removeChild(textArea);
        return success;
    }

    function createUI() {
        var bar;
        var btn;
        var counter;

        if (document.getElementById('video-copy-bar')) {
            return;
        }

        bar = document.createElement('div');
        bar.id = 'video-copy-bar';

        Object.assign(bar.style, {
            position: 'fixed',
            top: 'env(safe-area-inset-top, 0)',
            left: '0',
            width: '100%',
            background: '#111',
            color: '#fff',
            padding: '10px 8px',
            zIndex: '2147483647',
            display: 'flex',
            gap: '10px',
            alignItems: 'center',
            fontSize: '14px',
            boxSizing: 'border-box'
        });

        btn = document.createElement('button');
        btn.textContent = '📋 Copy All Links';

        Object.assign(btn.style, {
            padding: '8px 12px',
            cursor: 'pointer',
            background: '#ff5722',
            border: 'none',
            color: '#fff',
            borderRadius: '4px',
            fontWeight: 'bold',
            fontSize: '14px'
        });

        counter = document.createElement('span');
        counter.textContent = 'Links: 0';

        btn.addEventListener('click', function (event) {
            var text;

            event.preventDefault();
            collectLinks();

            if (allLinks.size === 0) {
                btn.textContent = '⚠️ No Links';
                setTimeout(function () {
                    btn.textContent = '📋 Copy All Links';
                }, 2000);
                return;
            }

            text = Array.from(allLinks).join('\n');
            copyToClipboard(text).then(function (success) {
                if (success) {
                    btn.textContent = '✅ Copied (' + allLinks.size + ')';
                } else {
                    btn.textContent = '❌ Failed';
                }

                setTimeout(function () {
                    btn.textContent = '📋 Copy All Links';
                }, 2000);
            });
        });

        bar.appendChild(btn);
        bar.appendChild(counter);
        document.body.appendChild(bar);

        setInterval(function () {
            collectLinks();
            counter.textContent = 'Links: ' + allLinks.size;
        }, 1500);
    }

    function init() {
        createUI();
        collectLinks();

        if (!observer && document.body) {
            observer = new MutationObserver(collectLinks);
            observer.observe(document.body, {
                childList: true,
                subtree: true
            });
        }
    }

    if (document.readyState === 'loading') {
        document.addEventListener('DOMContentLoaded', init);
    } else {
        init();
    }
})();