Stop Nefarious Redirects

Block unauthorized redirects and prevent history manipulation

// ==UserScript==
// @name         Stop Nefarious Redirects
// @namespace    http://tampermonkey.net/
// @version      4.1
// @description  Block unauthorized redirects and prevent history manipulation
// @match        http://*/*
// @match        https://*/*
// @grant        GM_setValue
// @grant        GM_getValue
// @grant        GM_xmlhttpRequest
// @license      MIT
// @run-at       document-start
// @icon         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pQr0eRrrifaBFCpCLNOnL2eONXvRQrGHgNRWbORbBLJsy2DIbYLXrJ1Ag+TY78HURG4mwm2pDj0ie0rrTn3MlgbVioF/iq8lZZaCmSKcLBkAMtQyMs19ib6Q3xzXxkSqtDtnN1TWhcM9085wsHYb1iD7WcgotH5JsNZpedAFM0JVvfPq0RBnlx27q57B36zneIvpY6+TMD+yFmlCFoEsege9mC0N88/QJAZhDFQn/0ArPdNw3oNK2ryZBTyun+U8X708TY7CAP7jrCh5Octff3Jjiag4IN75egp4YSJSzm/2ugxgG15sqpPqyFdjZ5CrMcsQqkHRCip8ktqQeWoMf4sfQske0Wclojp18C3cdcwSbDnkv/JqtKgL3xhPqLEfm/sNCIMMUsasGAorExYVdn2FhiQTGBFGGmJNEwZbOA9cpIZnMYJD+bZIot2w3V6PoL1TKx7R4sO0SAm3VX85Gk9QquESPGHQWHW9LS4QLDyXRMcbAxDrV3sVuzfA9LQTpe5XqlLhMQE/7dkRa+I9uTHQq1trlDApNouJwTyUDcecDqi8n8/UKKSz/mZZKnhLfi3ebFaHz7loPExogAtazY3/VMKUeilf8YBwF6KXms5XP8xhPDDlSdh1w+y91SbP/OdVY1m4Cak3XQklKALi3q4GHjpO31UmPvNlAakE8yogM2jYkMuoRKbG8cKVKOTystsn2rf6aOxHULb2ueg0XFIpgnQRpR3Ene2Av5XPg9HFdWZxFmV4FfYfCNTTqg8Ndb16mJ9EsARc7ufj//b7TZD/NQTcHqFrJd+mY6BD45J8GxK3MVBq65c2GkSylSN5LaWCa/WvOTxcwyJF6uHGWOeHQnJ6njF0sddIWbwDwIWqxZVsgxrjTdWjR8Y45QqdWYWt7m29WT8pIf9NUHnoQpMtReXfcZ+DPKlWsW9NqSxR9bJfNgSUX7OJr6Aqkat1eMGq8g2BeRo9jm//UTqfjQuVOOz3O3yPwINMKNmmOZQ/8Mu9GX1Yg4eZJzEhv8d6nN5/kf2aOSHo/v8s6KbHJl4StvRHMCpcCOaABpCP2wZYrRIwu3jTRuT/ffJkwosmoSmI/K/ylJdxEXxMMfuv+59lZO0ScxtVI0Er4eLxJy0N1/ZOVCV/es3PPkcGu/hDBUrHP04yIVhKC6FI5tS4/rKLETiQLVKo6cGvF3votbTdl7De4jSOCg5ingvjIJ75UQkFqCfJ0TPR7xUN4v1wsFkHWuTMlzZd/NXDI8ie1hzKkBFNo1KTdUJ6PaTrz06wiqYH10eIARv41jvg4LjE2VUNm731mlYze3+h7rBFdhIBdv9nuUxAU97VqIY3XrXo6uy2j4XxnC0Eh0+9W6Et+l/CA1YoV2Bhm3EKJz4kH4w97pBoOb1DCsn/1GW8Jm0U3BoLzfR3vFWY/O0DXLItTgjprbeirOvhklpzfpLwjciy7ZqbvBa742ZytYIqTlsigqZVkJqkV7gAVFyyAI/ozgFa1iz4ST5xjc58hdEKTsirrkX1GueXYT3sQaQhOpqklx5S72MokCfJ5jBGQyBg6bdSZINr/PA2Et+eZ0FBJLkMiLkg22mDtuQGpN0DKn1/oPVHq1BRlcipvLnUB8cha8DLEsCotnTXMOFSdlNS+CAwLfhY0Qf4vNWZvRvYhq8dBCwqHeQZ2hHSGfx4KB6KFnAm7WKWkXGEviDRaP8K+M8er70mWzlSRtlhF7zRwQdQ/Y3tcoWf9hq7RXSi+5I+MtnN+JlpBxwnOSvFJ1IFg7+NjQPWMtD3JlmZLQxqP06/LRiOnaLVwVWIQWtfoh21AV6JlJR2xH4llrQgM9w34IKVAOiHTJIHnEBlSjgu/2P5S84VnzIinvQP1vQFta9PfIbmltBk1Wu6Zd8GctP4AMX5Ag++TRMscb1rR0ATZViB/DzmQ7M25GlmFcj9d22qjmzQCH/4FqNR86H3IJvutJTKDcAklpzCu1ahY5wj0BWEPea3MHpM9uVyG/+O25H5ztm1c4sz7NLNMoM1edL878B3uuzuJU3/4Et4f2ZsXFHZw8/wX6B4U2qlhhqkYmQvfX7CsxiIPuua6u1FFR9EfJbuudHBvUimmEs/rfsYHfc/XRmkXx4CEVaUTOxM5bNlP2NNVD1Yi8whbIFetfa5l/fUrqTIw6sbBE8q+/aTifc+zclpBKdQkcGakVb+47kmXx9Ur7w0e/Df0yHu27B3rgnyKyTHB0lIVQPiwgXvAa+efZ9C/4p3MqIOPU7bAv7OL9IdJzIS6pET6katdf/eMsWxe4/MpA0yM0zMjodX8OglEyQdV6WDw8QmZlZOGJxqaJJ+r9YjtivPUFevaSThLv5+W9tHKflQcffASpremJGTrj2R+BrHEsqepr9+TQodFkkjPD1v01o95tzlGaBVnTVlhaXOwA8E6PHemetm4/hpTxG8ncEkKZkKkzv1QXXZo22xbm9/QRG2ewQnlb/Th1wAY4OUv5/ycRRY5aMt5F5scUWgD8OGW1/2gXC7DQUtG6tGLKTU0X0fq3eN6VQBvL/1BoODlRq7aEz3yAr5VpJeFdykGviUTLV+gGtIg/VO0bs9lCaHdQQxltRRtlz3kdAgQ2JWIjtPdeX2DqMxWHO8HSmDauXm1Xu7/txm4dJg0371HEDZaxWvjoYqrR1Qfxok1lOXKK70aDWBLeqVod0rogGk9aZ5Nbo9AHIXsg5QgwbT0l5EdaAbkC5JtkRl1ED1uepA58A0mR2Hdc2IEn1cAKPuLWg/vWNAcgbb/5fckg+WiPO6QnWUIYSmsjUaIv0jplkKH9IaThtfWsdxvRHxncegYsIYktgGmO4LZsQ7DRu7i/P8z8KSMljeGW4jOjF01zs0zqoHl0MH2QQ40nuaoTCobmLdfv0M1BjtJB1i7vPosOo9Co7MyDH8bkOduCjSquXPDW5mypas8+edXYQzhKRQ2NSh1f5XBBW70vKuFJZSsjotRwo6I5WLll2CD3zgbQ7TL22MHVP058ZOWQO4JLVtoCnf1Fkl9T2HPT+u7XEmnVs38P6yWOYQFf4C0d54N7BufRS/23YAuuTsnfk3jAY8Ge55w0D7ZPnq+nzgdv0ZzNs6Rhwm9JgZi3wBiBcJl6a1TynhK1QWm667/w/g2CfUJwVozGErgDtjLZfZvmDPmO4ajHHj8+kPgDMzckH7OnrWixFZprYhd3jY7vEIyOP2OYJHtybiYauETURiogObLhij/jq2Ef+5tag6YdsrcHQp6gDWWcHw5HHdFSNJ08anZJTGtNTWCeoKAZdL8OT/cguRxUVEIp7TXWv+32elvjXX19yuMmyZI60f8mUkxqWMv0MZiReMM/9lnzbvQLcybOyZjGrtGW42cnD0vRYQlZc1o2cgsbVO3TljJYuVFFR2u9pBLZwpkMm1I3yhRgjy+GA9MHs5GFe9JWOzx9a2vQYb/S5/41quUA4ZjEbfw5IVzQ8t7YTGIofKFWL6Wl7y215WGI/FuhzCod7aNMtvKIcY1oq9lXk3WpAPPJSucbwEXHCU7vYW1gdCX2V8Z1eD8gw1kgbr+TpJwdDPK2qGoop0KuzJZ0LWAIt/dFK1+NpERNuSUMwHsVYjQ5u5Ga33JX3JNHvxidehc0hSrDDPLDdl1/Pe+pxNlRZAR1Kp3a6g6rQtHRoPllsb4N2yo4boOrCXSId25jOcTI4ijjfs6iTeqFwSL8t7O/A0TlAstskde7a/7/JhL+DX5vjBT6rBiaoInwWFsSfzQyrChIPlrfeQ+LGffMdLUQqVex80MeT3U2NQhzmcLc/V96MJ/ixeC8dK7TbyMGiAqpE3zBRsUkEp1CsIl8eDSuuTXAHkk4Mmvv9XQ5kneb384fFLBAkiTsCAYbn6eXDcFnwWXpnACrm/d8X4Cl/MbjgFGlLQIpkoIb2LTJ3e57wEYUSLJYOIc/SlEpX/rR98nh8qLFIZsfngiLoexYj5kPY8C6RnF/Phi3F4/IGWkRh/E5heuixUKwJvmqjH9qVsQ6y1huguuKSk+/QUrlzn8a3PeFX6FFr7dHxML3FaQSPnj2Px0s2NP7n5w6xgfXHLAvUOUcs1sfX2uORbkqkmsErfY0PNt2Sq9wX5mKx4fxSJBOHqNXa1hs4HiW50aZIasWDTTQhssj4ZUy+xXUi2Ef5zqIoCyIYN6WBM3Eci3zUsKhhq1j2NGdByGXrhdSzVI8fmWRnepwZNw9IaVONw5KXQsPxeZWWyUJN8/pVSza/cq0eQeXbskuFMh9s9uvf/wtCXq2bQNCYcqTxq0cQ3iawmw3VHEPSgEg7XnrZTfzW8jzz+Ub1P31MEfhyTl9Tq5W39qCYmN+/R9B8aa30xHsD7tjhAz31PCrpePyI0gfwOWKwBS6qPkquRvQFfv1n8GmE5W+eWdhDhi99EyC6+MmSFzUdptv706BSUYhSXY+6PF2I/T8P+TmBycmX4G6sqTyGoYO0mQHvlgN0PvEXHArUCXVlWX86Q1g1MGQQn+sqZv9M3QLJYabSJRA/4XCZjD21pWrKsrAZ+3U5amMKv8tgUdcxfejjkS/ALqJSVEiuLNJKCB47zy8Qfb+gDZ7LaQwk7cwFLj1Mhip5PCY6rwqOVC7BipT2Rg3yODYT8nQ8Nfa0/QtZxAiQ+f3jsI1IgR08o2Iq7KPx8L3xlCU4jDqW2sVl0zLWBsI9d4mzaknCwcMNBthqnfxez5Mr6/6dHzZnFhCLs8pPDJpOPVR9hmQg8zRH7QYiltyScvvVTlI07e/i5fr6ob2V0RsLFEkrqEb+NqxheB+cpcLZccmaqVHrpaniPKijfyJbOP/6sJjlC13w+uV+nlWg0u7heOS8Nm8yHhb+itYwfL/5S4JJp7oaRvoqDFnPRwApfnNcqnQcOgrw4w8mfuERQkTa6jtsij0eqkk2KPt1ML6141dq6/LEVhwGKC/20oRcZiV2jPsWpPxI/yvD2KXHfPA8ZRWC8luM68h8OyoLZej6feZM7twuitF62rXKD7BVpmzyMJolYDNvMi/+xD7qM19PjaYYUIOerYJUkFF1qPS/cJMMipOxU7VDB20VtQC2ItNQ3B9xHxwu/rC5fpVuoTqzjInm2ef1TnQ30VffqROK/IOLZ09pTaK5UKyAdyMmSiMwe3NHRz77KNdRbstLq+Azm+Vcri0nRXijqnsua/O70KoWExGMhdcwEspbXsFbK+Cm5nx+C4FuK3R7HCh+VkG+fqUPZ88HeSM6b7bVByDQfnq7LUgTGklKOp83DqS9XDKQxdwR2nyphJSs+c6Xn84NdfEQ5t2dcDkROXwm39FsW3ghbGzRkmAD80tkz8/YiKAB3wrjgndAJ5qlDdtY0sRukZ2bE6KS/Ky8yYzvUW+Eg3pnmP2TMPUXQxd3r7ck6652OR+HBzpkrfSaFNdnpqluQZFWI6cU60q/WVw7w6pxssVsnyRrMfXYzMBGqbKKj6avc/vk4ZwV0qIWx+oZB3PDxbHzAz5ej1WxcwAd5YTlrNqnttUE8VRv/hjgu5YckIC1tkv9i35OSv8rhHlr33u4VW7xH3nVs7822CJJwAKL/5wG9koFt5Qkqen8e/V/b3fAnXt/R6Ay4f7W/nM8bv2t6Dz6kezO8MRsWTsN18m+aPNEVlxm+pbKp4tVuszE5uxqhnDI04qLD+xZ38mn0lP8Eg820fFCFzA2iVG5ra+zYoRmJcR2Vf4se1PRuiAUfkqCX9TjOSpw93RTMIN6C0mIwI9IMpJ3vkaBWm1u2UiwC/q5WsP5Kud5WFGifBnHL8jNgQOExHU2qlqYMt9YrxB4weRcsY4Q7/HL9+HokZ343SDwgb5jDHlTvMVCk6nOXNsPqfCuy9gDAIYJT/yBGeEcdilavOiBTVSAb6/SV6svoZ29fHZ64y3Cd9gqpteduTOn4UT44MIHVQFMbZV0yDXcK+Y+eAtsV2lxLL0BwlpHGGaENcqYXH8XbB8pWv6ntK9yOGydjyxPwXRE4qlXVzEkox89M2CQ1oslBgMVRPH96yt0y7eHYT5B5cAAHdMeVeGninMQ7ju/DNWMyfOQfr4sM1eLvCBt9ojl6M62zW6B06QpxaTpBX+rwFt0+d0rR/usP7x6QO8Xd0+FrxEFUi/DQaUevMcGoBSfUHxu0TWjnyVy3k/0l54oHymSzXs102CZK+mOwMnnjIsDpF4m2ykxDv6ObpgBfQADEl+cgAABQpv8PalEjUPQ3AUg4LwoPVw9i/zCdMJf1NQPeE5Jyy8wAAA=
// ==/UserScript==

const manualBlacklist = new Set([
    'getrunkhomuto.info'
]);

// List of allowed popups domains (user should re-add specific domains here)
const allowedPopups = new Set([
    '500px.com', 'accuweather.com', 'adobe.com', 'alibaba.com', 'amazon.com',
    'apple.com', 'bbc.com', 'bing.com', 'cnn.com', 'craigslist.org',
    'dailymail.co.uk', 'ebay.com', 'facebook.com', 'github.com', 'google.com',
    'instagram.com', 'linkedin.com', 'microsoft.com', 'netflix.com', 'reddit.com',
    'twitter.com', 'wikipedia.org', 'youtube.com'
]);

const logPrefix = '[Nefarious Redirect Blocker]';

(function() {
    'use strict';

    console.log(`${logPrefix} Script initialization started.`);

    function getAutomatedBlacklist() {
        return new Set(GM_getValue('blacklist', []));
    }

    function addToAutomatedBlacklist(url) {
        const encodedUrl = encodeURIComponent(url);
        const blacklist = getAutomatedBlacklist();
        if (!blacklist.has(encodedUrl)) {
            blacklist.add(encodedUrl);
            GM_setValue('blacklist', Array.from(blacklist));
            console.log(`${logPrefix} Added to automated blacklist:`, url);
        }
    }

    function isNavigationAllowed(url) {
        if (!isUrlBlocked(url)) {
            console.log(`${logPrefix} Navigation allowed to:`, url);
            lastKnownGoodUrl = url;
            return true;
        } else {
            console.error(`${logPrefix} Blocked navigation to:`, url);
            addToAutomatedBlacklist(url);
            if (lastKnownGoodUrl) {
                window.location.replace(lastKnownGoodUrl);
            }
            return false;
        }
    }

    const originalOpen = window.open;

    console.log(`${logPrefix} Original window.open saved.`);

    window.open = function(url, name, features) {
        console.log(`${logPrefix} Popup attempt detected:`, url);
        if (Array.from(allowedPopups).some(domain => url.includes(domain)) || isNavigationAllowed(url)) {
            console.log(`${logPrefix} Popup allowed for:`, url);
            return originalOpen(url, name, features);
        }
        console.log(`${logPrefix} Blocked a popup from:`, url);
        return null;
    };

    console.log(`${logPrefix} window.open overridden with custom logic.`);

    let lastKnownGoodUrl = window.location.href;

    function interceptNavigation(event) {
        const url = event.detail.url;
        if (!isNavigationAllowed(url)) {
            event.preventDefault();
            return false;
        }
        return true;
    }

    window.addEventListener('beforeunload', function(event) {
        if (!isNavigationAllowed(window.location.href)) {
            event.preventDefault();
            event.returnValue = '';
            return false;
        }
    });

    window.addEventListener('popstate', function(event) {
        if (!isNavigationAllowed(window.location.href)) {
            console.error(`${logPrefix} Blocked navigation to:`, window.location.href);
            history.pushState(null, "", lastKnownGoodUrl);
            window.location.replace(lastKnownGoodUrl);
            event.preventDefault();
        }
    });

    function handleHistoryManipulation(originalMethod, data, title, url) {
        if (!isUrlBlocked(url)) {
            return originalMethod.call(history, data, title, url);
        }
        console.error(`${logPrefix} Blocked history manipulation to:`, url);
    }

    const originalPushState = history.pushState;
    const originalReplaceState = history.replaceState;

    history.pushState = function(data, title, url) {
        return handleHistoryManipulation(originalPushState, data, title, url);
    };

    history.replaceState = function(data, title, url) {
        return handleHistoryManipulation(originalReplaceState, data, title, url);
    };

    function isUrlBlocked(url) {
        const encodedUrl = encodeURIComponent(url);
        const automatedBlacklist = getAutomatedBlacklist();
        const isBlocked = [...manualBlacklist, ...automatedBlacklist].some(blockedUrl => encodedUrl.includes(blockedUrl));
        if (isBlocked) {
            console.log(`${logPrefix} Blocked URL:`, url);
        }
        return isBlocked;
    }

    console.log(`${logPrefix} Redirect control script with blacklist initialized.`);
})();