// ==UserScript==
// @name         解决某垃圾小说站
// @namespace  https://viayoo.com/enpza9
// @version      0.3
// @description  解决某垃圾小说站，章节截断，恶意转跳问题。
// @author       Aloazny
// @include      http*://*/book/*/*.html
// @run-at       document-start
// @license      MIT
// @grant       none
// ==/UserScript==

(function() {
    'use strict';

    const spoofPlatform = (p = 'Mac') => {
        const s = new Proxy(navigator, {
            get(t, k) {
                if (k === 'platform') return p;
                let v = Reflect.get(t, k);
                return typeof v === 'function' ? v.bind(t) : v;
            },
            getOwnPropertyDescriptor: (t, k) =>
                k === 'platform'
                    ? { value: p, writable: false, configurable: true, enumerable: true }
                    : Object.getOwnPropertyDescriptor(t, k)
        });
        const f = () => {
            try {
                if (Object.getOwnPropertyDescriptor(navigator, 'platform')) {
                    navigator.__defineGetter__('platform', () => p);
                } else {
                    Object.defineProperty(navigator, 'platform', {
                        get: () => p, configurable: true, enumerable: true
                    });
                }
                Object.defineProperty(window, 'navigator', { value: s, writable: false, configurable: true });
                Object.defineProperty(Navigator.prototype, 'platform', {
                    get: () => p, configurable: true, enumerable: true
                });
                Object.freeze(window.navigator);
            } catch (e) {}
        };
        const i = String.prototype.indexOf;
        String.prototype.indexOf = function(v) {
            if (this === p) {
                if (['Win', 'Linux', 'X11'].includes(v)) return -1;
                if (v === p) return 0;
            }
            return i.apply(this, arguments);
        };
        f();
    };
    spoofPlatform('Mac');

    const DEFAULT_KEYWORDS = [
        'htmlAds', '_ffc1();', '_ffc2();', '_ffc3();', '_ffc4();', '_ffp();', 'kbbaidu1();', 'kbbaidu2();', 'kbbaidu3();', 'html5player.checkVideoAds', 'ads_codes', '{return void 0!==b[a]?b[a]:a}).join("")}', '${scripts[randomIndex]}', '${scripts[Math.random()', '"https://"+Date.parse(new Date())+', '"https://"+(new Date().getDate())+', 'https://hongosi.xn--', 'https://{randomstr}.', 'new Function(t)()', 'new Function(b)()', 'new Function(c)()', 'new Function(t);', 'new Function(b);', 'new Function(c);', 'new Function(\'d\',e)', 'new Function(document[', 'new Function(function(p,a,c,k,e,d)', 'function a(a){', 'function b(b){', 'function c(c){', 'function updateCarousel()', 'Math.floor(2147483648 * Math.random());', 'Math.floor(Math.random()*url.length)', 'Math.floor(Math.random() * urls.length)', 'new Date()[\'getTime\']()', 'newDate=new window', 'Math.floor(((new Date()).getTime()', '&&navigator[', '=navigator;', 'navigator.platform){setTimeout(function', 'disableDebugger', 'blockDeveloperTools', '["Date"]())[\'getTime\']()', '</\'+\'s\'+\'c\'+\'ri\'+\'pt\'+\'>\');', '<\\/\'+\'s\'+\'c\'+\'ri\'+\'pt\'+\'>\');', 'class=\\"zdhf\\"', '(\'#htmlContenthtml\').html', 'D.createElement(\'span\');', 'class=\\"app_tj\\"', 'window.$m(', 'jsjiami.com.v4', 'histats.com', 'hm.baidu.com', 'adbyunion', '{win:false,mac:false,xll:false}', 'mainCell:".bd",effect:"leftLoop"', '/invoke.js">', 'function|getDate', 'parseInt(Math[\'random\']', 'pc.stgowan.com'
    ];

    const regexes = DEFAULT_KEYWORDS.map(k => {
        try {
            let pattern = k.replace(/[.*+?^${}()|[\]\\]/g, '\\$&')
                           .replace(/\\ /g, '[\\s\\n\\r]*')
                           .replace(/ /g, '[\\s\\n\\r]*')
                           .replace(/\\\)\\\{/g, '\\s*\\)\\s*\\{')
                           .replace(/\\\)\\\;/g, '\\s*\\)\\s*\\;');
            return new RegExp(pattern);
        } catch (e) {
            return { test: () => false };
        }
    });

    function isAdScriptContent(content) {
        if (!content) return false;
        return regexes.some(reg => reg.test(content));
    }

    function removeMatchedScripts() {
        document.querySelectorAll('script').forEach(script => {
            const content = script.innerHTML || script.textContent;
            if (content && isAdScriptContent(content)) {
                script.type = 'text/prevented';
                script.textContent = '';
                script.remove();
            }
        });
    }

    const observer = new MutationObserver(mutations => {
        mutations.forEach(m => {
            m.addedNodes.forEach(node => {
                if (node.nodeName === 'SCRIPT') {
                    const content = node.innerHTML || node.textContent;
                    if (content && isAdScriptContent(content)) {
                        node.type = 'text/prevented';
                        node.textContent = '';
                        node.remove();
                    } else {
                        const obs = new MutationObserver(() => {
                            const laterContent = node.innerHTML || node.textContent;
                            if (laterContent && isAdScriptContent(laterContent)) {
                                node.type = 'text/prevented';
                                node.textContent = '';
                                node.remove();
                                obs.disconnect();
                            }
                        });
                        obs.observe(node, { childList: true, characterData: true, subtree: true });
                        setTimeout(() => obs.disconnect(), 5000);
                    }
                }
            });
        });
    });
    observer.observe(document.documentElement, { childList: true, subtree: true });
    removeMatchedScripts();

    function tryDecrypt() {
        let decryptFn = window.php_decrypt_js;
        let encrypted = window.c;

        if (typeof decryptFn !== 'function') {
            for (let key in window) {
                if (key.toLowerCase().includes('decrypt') && typeof window[key] === 'function') {
                    decryptFn = window[key];
                    break;
                }
            }
        }

        if (typeof encrypted !== 'string' || encrypted.length < 50) {
            const scripts = document.querySelectorAll('script:not([src])');
            for (let s of scripts) {
                const match = s.textContent.match(/var\s+[a-zA-Z_$][\w$]*\s*=\s*"([A-Za-z0-9+/=]{100,})"/);
                if (match) {
                    encrypted = match[1];
                    break;
                }
            }
        }

        if (typeof decryptFn !== 'function' || typeof encrypted !== 'string') {
            setTimeout(tryDecrypt, 500);
            return;
        }

        try {
            const selectors = ['#chaptercontent', '#content', '.content', '.read-content', '.chapter-content', '.post-content', '#booktxt', '#htmlContent', '.article-content'];
            let contentDiv = null;
            for (let sel of selectors) {
                contentDiv = document.querySelector(sel);
                if (contentDiv) break;
            }

            if (!contentDiv) return;
            const currentHtml = contentDiv.innerHTML;
            const decryptedHtml = decryptFn(encrypted);
            const currentText = contentDiv.innerText.substring(0, 100).trim();
            let finalHtml = decryptedHtml.includes(currentText)
                ? decryptedHtml
                : currentHtml + decryptedHtml;
            contentDiv.innerHTML = finalHtml;
            const moreContent = contentDiv.querySelector('#morecontent');
            if (moreContent) moreContent.remove();
            const keywords = [
                '小说推荐：',
                '看后求收藏',
                '退出阅读模式即可',
                '更多内容加载中',
                '本站只支持手机浏览器访问',
                '若您看到此段落，代表章节内容加载失败'
            ];
            const paragraphs = contentDiv.querySelectorAll('p');
            paragraphs.forEach(p => {
                const text = p.innerText;
                if (keywords.some(keyword => text.includes(keyword))) {
                    p.remove();
                }
            });
            const errorMsg = document.querySelector('p[style*="color:red"]');
            if (errorMsg && errorMsg !== contentDiv) errorMsg.remove();

        } catch (e) {
            console.error('[解密脚本] 运行异常：', e);
            setTimeout(tryDecrypt, 2000);
        }
    }

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

})();