// ==UserScript==
// @name         万能解除复制限制 - Anti-Copy Killer
// @namespace    http://tampermonkey.net/
// @version      1.6
// @description  解除网页禁止复制、右键、选择等限制，支持大多数反爬和反复制网站
// @author       You
// @match        *://*/*
// @grant        none
// @run-at       document-start
// ==/UserScript==

(function () {
    'use strict';

    // === 1. 强制允许选择 - 使用更温和的方式 ===
    function addSelectStyle() {
        const style = document.createElement('style');
        style.textContent = `
            * {
                -webkit-user-select: auto !important;
                -moz-user-select: auto !important;
                -ms-user-select: auto !important;
                user-select: auto !important;
            }
        `;
        if (document.head) {
            document.head.appendChild(style);
        } else {
            document.addEventListener('DOMContentLoaded', () => {
                document.head.appendChild(style);
            });
        }
    }
    addSelectStyle();

    // === 2. 页面加载完成后执行主要解锁逻辑 ===
    function unlockPage() {
        // 清除常见的限制属性
        try {
            document.onselectstart = null;
            document.oncopy = null;
            document.oncut = null;
            document.onpaste = null;
            document.oncontextmenu = null;
            
            if (document.body) {
                document.body.onselectstart = null;
                document.body.oncopy = null;
                document.body.oncut = null;
                document.body.onpaste = null;
                document.body.oncontextmenu = null;
            }
        } catch (e) {}
    }

    // === 3. 支持关键快捷键 ===
    function enableShortcuts() {
        document.addEventListener('keydown', function(e) {
            // 允许 Ctrl+A/C/V/X
            if (e.ctrlKey || e.metaKey) {
                const key = e.keyCode || e.which;
                if ([65, 67, 86, 88].includes(key)) {
                    e.stopPropagation();
                }
            }
        }, true);
    }

    // === 4. 移除常见的限制样式 ===
    function removeRestrictiveStyles() {
        // 定期检查并移除限制性样式
        setInterval(() => {
            const elements = document.querySelectorAll('*');
            elements.forEach(el => {
                const style = getComputedStyle(el);
                if (style.userSelect === 'none') {
                    el.style.setProperty('user-select', 'auto', 'important');
                }
            });
        }, 1000);
    }

    // === 5. 绑定事件 ===
    if (document.readyState === 'loading') {
        document.addEventListener('DOMContentLoaded', function() {
            unlockPage();
            enableShortcuts();
            removeRestrictiveStyles();
        });
    } else {
        unlockPage();
        enableShortcuts();
        removeRestrictiveStyles();
    }

    // 页面完全加载后再次执行
    window.addEventListener('load', unlockPage);

    // === 6. 处理动态内容 ===
    const observer = new MutationObserver(function(mutations) {
        mutations.forEach(function(mutation) {
            mutation.addedNodes.forEach(function(node) {
                if (node.nodeType === 1) { // 元素节点
                    // 移除新添加元素的限制
                    if (node.style) {
                        if (node.style.userSelect === 'none') {
                            node.style.userSelect = 'auto';
                        }
                    }
                }
            });
        });
    });

    // 开始观察
    document.addEventListener('DOMContentLoaded', function() {
        observer.observe(document.body, {
            childList: true,
            subtree: true
        });
    });

})();