依旧是ai编的
目前為
// ==UserScript==
// @name 抖音视频下载极简版
// @namespace http://tampermonkey.net/
// @version 0.7.4
// @description 依旧是ai编的
// @match *://www.douyin.com/*
// @grant GM_xmlhttpRequest
// @grant GM_addStyle
// @license MIT
// @require https://cdnjs.cloudflare.com/ajax/libs/dayjs/1.11.9/dayjs.min.js
// @connect douyinvod.com
// @connect *.douyinvod.com
// @run-at document-idle
// ==/UserScript==
(function() {
'use strict';
let detectedVideoUrls = {};
let lastDetectedUrl = null;
let observer = null;
let isDownloading = false;
const downloadButton = document.createElement('button');
downloadButton.id = 'douyin-smart-matcher-downloader-btn-v74';
downloadButton.textContent = '等待视频加载...';
downloadButton.disabled = true;
GM_addStyle(`
#douyin-smart-matcher-downloader-btn-v74 {
position: fixed;
bottom: 55px;
right: 15px;
z-index: 20009;
padding: 12px 25px;
background-color: #FF6600;
color: white;
border: none;
border-radius: 30px;
cursor: pointer;
font-size: 15px;
font-weight: bold;
box-shadow: 0 5px 15px rgba(0, 0, 0, 0.2);
transition: background-color 0.2s ease, transform 0.1s ease, color 0.2s ease;
}
#douyin-smart-matcher-downloader-btn-v74:disabled {
background-color: #cccccc;
color: #666666;
cursor: not-allowed;
opacity: 0.7;
}
#douyin-smart-matcher-downloader-btn-v74:hover:not(:disabled) {
background-color: #FF8800;
}
#douyin-smart-matcher-downloader-btn-v74:active:not(:disabled) {
transform: scale(0.95);
}
`);
function addButtonToPage() {
if (document.body) {
if (!document.getElementById(downloadButton.id)) {
document.body.appendChild(downloadButton);
startPerformanceObserver();
}
} else {
setTimeout(addButtonToPage, 150);
}
}
addButtonToPage();
function getQueryParam(url, paramName) {
try {
const urlObj = new URL(url);
return urlObj.searchParams.get(paramName);
} catch (e) {
const safeParamName = paramName.replace(/[.*+?^${}()|[\]\\]/g, '\\$&');
const match = url.match(new RegExp(`[?&]${safeParamName}=([^&]*)`));
return match ? match[1] : null;
}
}
function getVideoIdFromPath(pathname) {
const match = pathname.match(/\/(?:video|note)\/(\d+)/);
return match ? match[1] : null;
}
downloadButton.addEventListener('click', () => {
let targetVid = null;
let targetUrl = null;
const currentUrl = window.location.href;
const currentPathname = window.location.pathname;
const noteIdFromPath = getVideoIdFromPath(currentPathname);
const modalId = getQueryParam(currentUrl, 'modal_id');
if (modalId) {
targetVid = modalId;
targetUrl = detectedVideoUrls[targetVid];
}
if (!targetUrl && noteIdFromPath) {
targetVid = noteIdFromPath;
targetUrl = detectedVideoUrls[targetVid];
}
if (!targetUrl && currentPathname.includes('/note/') && lastDetectedUrl) {
targetUrl = lastDetectedUrl;
let vidFromFallbackUrl = getQueryParam(targetUrl, '__vid');
if (vidFromFallbackUrl) {
targetVid = vidFromFallbackUrl;
} else {
targetVid = noteIdFromPath || 'note_unknown';
}
}
if (!targetUrl) {
let reason = '当前页面标识';
if (modalId) reason = `modal_id (${modalId})`;
else if (noteIdFromPath) reason = `路径ID (${noteIdFromPath})`;
alert(`未能根据 ${reason} 找到匹配的视频链接。\n请确保视频已加载。`);
return;
}
if (isDownloading) {
return;
}
isDownloading = true;
downloadButton.disabled = true;
downloadButton.textContent = '请求中...';
GM_xmlhttpRequest({
method: "GET",
url: targetUrl,
responseType: 'blob',
headers: {
// --- 添加的请求头 ---
"Referer": window.location.href, // 保留 Referer
"User-Agent": navigator.userAgent, // 显式设置 User-Agent
"Cookie": document.cookie, // 显式发送当前页面的 Cookie
// --- 可以考虑添加更多通用头 ---
"Accept": "video/webm,video/ogg,video/*;q=0.9,application/ogg;q=0.7,audio/*;q=0.6,*/*;q=0.5",
"Accept-Language": navigator.language || "en-US,en;q=0.9",
"Sec-Fetch-Site": "same-site", // 或 "cross-site" 取决于 douyinvod.com 和 douyin.com 的关系
"Sec-Fetch-Mode": "no-cors", // 视频请求通常是 no-cors
"Sec-Fetch-Dest": "video", // 或 "empty"
},
// 注意: Tampermonkey/Violentmonkey对Cookie的处理可能与手动设置冲突。
// 如果添加Cookie后出现问题，可以尝试注释掉 "Cookie": document.cookie 这一行。
onload: function(response) {
if (response.status === 200 || response.status === 206) {
downloadButton.textContent = '处理数据...';
try {
const blob = response.response;
const blobUrl = URL.createObjectURL(blob);
const a = document.createElement('a');
a.href = blobUrl;
const timestamp = dayjs().format('YYYYMMDD_HHmmss');
const filenameVid = targetVid || 'unknown';
a.download = `douyin_${filenameVid}_${timestamp}.mp4`;
a.style.display = 'none';
document.body.appendChild(a);
a.click();
document.body.removeChild(a);
setTimeout(() => URL.revokeObjectURL(blobUrl), 100);
downloadButton.textContent = '下载视频';
} catch (e) {
alert('处理下载数据时发生错误！');
downloadButton.textContent = '处理失败';
}
} else {
alert(`下载失败：服务器返回错误 ${response.status} ${response.statusText} (URL可能已过期或请求头无效)`);
downloadButton.textContent = `错误 ${response.status}`;
}
setTimeout(() => {
isDownloading = false;
downloadButton.disabled = Object.keys(detectedVideoUrls).length === 0 && !lastDetectedUrl;
if(!downloadButton.disabled && !downloadButton.textContent.includes('下载视频')) {
downloadButton.textContent = '下载失败,重试?';
} else if (!downloadButton.disabled) {
downloadButton.textContent = '下载视频';
} else {
downloadButton.textContent = '等待视频加载...';
}
}, 1500);
},
onerror: function(error) {
alert(`下载失败：网络错误 ${error.error || ''}`);
downloadButton.textContent = '网络错误';
setTimeout(() => {
isDownloading = false;
downloadButton.disabled = Object.keys(detectedVideoUrls).length === 0 && !lastDetectedUrl;
downloadButton.textContent = '下载失败,重试?';
}, 1500);
},
ontimeout: function() {
alert('下载失败：请求超时');
downloadButton.textContent = '请求超时';
setTimeout(() => {
isDownloading = false;
downloadButton.disabled = Object.keys(detectedVideoUrls).length === 0 && !lastDetectedUrl;
downloadButton.textContent = '下载失败,重试?';
}, 1500);
}
});
});
function performanceCallback(list, observer) {
// ... (与 V7.1 逻辑相同) ...
const entries = list.getEntries();
let newUrlsAdded = false;
let latestUrlInBatch = null;
for (const entry of entries) {
if (entry.entryType === 'resource') {
const url = entry.name;
if (typeof url === 'string' && url.includes('douyinvod.com') && (url.includes('/video/') || url.endsWith('.mp4'))) {
const vid = getQueryParam(url, '__vid');
if (vid) {
detectedVideoUrls[vid] = url;
newUrlsAdded = true;
}
latestUrlInBatch = url;
}
}
}
if (latestUrlInBatch) {
lastDetectedUrl = latestUrlInBatch;
}
if ((Object.keys(detectedVideoUrls).length > 0 || lastDetectedUrl) && downloadButton.disabled) {
downloadButton.disabled = false;
downloadButton.textContent = '下载视频';
}
}
function startPerformanceObserver() {
// ... (与 V7.1 启动逻辑相同) ...
if (typeof PerformanceObserver === 'undefined') {
alert("你的浏览器不支持 PerformanceObserver，脚本无法运行。");
return;
}
if (observer) {
observer.disconnect();
}
observer = new PerformanceObserver(performanceCallback);
try {
observer.observe({ type: 'resource', buffered: true });
} catch (e) {
try {
observer.observe({ entryTypes: ['resource'] });
} catch (e2) {
alert("启动性能监视器失败，脚本可能无法工作。");
}
}
}
})();
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