// ==UserScript==
// @name 短视频去水印下载 Pro + 全站嗅探下载
// @name:zh-CN 短视频去水印下载 Pro + 全站嗅探下载
// @version 3.4.0
// @license MIT
// @description 🎯 支持抖音、小红书网页版无水印高清下载。抖音:自动识别当前播放视频,一键下载无水印 MP4、封面图,支持图文帖多图批量保存,自动提取作者/标题/发布时间;小红书:支持视频笔记、图文笔记,自动解析无水印原图和视频链接,批量下载图片同时嗅探所有网页中的 M3U8、MP4 视频链接,可直接复制或下载。
// @tag 视频下载 视频嗅探 去水印 全平台下载 抖音 小红书
// @author LightDownload
// @match *://*.douyin.com/*
// @match *://*.xiaohongshu.com/*
// @match *://*.bilibili.com/*
// @match *://*/*
// @grant GM_xmlhttpRequest
// @grant GM_download
// @grant GM_setValue
// @grant GM_getValue
// @grant GM_addStyle
// @grant GM_notification
// @grant GM_registerMenuCommand
// @grant unsafeWindow
// @connect *
// @run-at document-start
// @namespace https://greasyfork.org/
// ==/UserScript==
(function () {
'use strict';
/* ══════════════════════════════════════════════════════════
SETTINGS — 统一配置中心
══════════════════════════════════════════════════════════ */
var SETTINGS = {
// 外观
themeMode: GM_getValue('cfg_themeMode', 'auto'), // light / dark / auto
rememberTriggerPos: GM_getValue('cfg_rememberTriggerPos', true),
rememberLastTab: GM_getValue('cfg_rememberLastTab', true),
windowOpacity: GM_getValue('svd_win_opacity', 1.0),
// 下载
autoSaveCover: GM_getValue('cfg_autoSaveCover', false),
filenameTemplate: GM_getValue('cfg_filenameTemplate', '{author}-{desc}'),
notifyOnComplete: GM_getValue('cfg_notifyOnComplete', true),
duplicateStrategy: GM_getValue('cfg_duplicateStrategy', 'rename'), // overwrite / rename / ask
// 嗅探
minResolution: GM_getValue('cfg_minResolution', '0'), // 0 / 480 / 720 / 1080
linkTypeFilter: GM_getValue('cfg_linkTypeFilter', 'all'), // all / mp4 / m3u8
autoCopyFirst: GM_getValue('cfg_autoCopyFirst', false),
showSniffPreview: GM_getValue('cfg_showSniffPreview', true),
// 记忆数据
lastTab: GM_getValue('cfg_lastTab', 'main'),
triggerPos: GM_getValue('cfg_triggerPos', null), // {left, top}
};
function saveSetting(key, value) {
SETTINGS[key] = value;
// 维持 windowOpacity 的旧 key 兼容
var storeKey = key === 'windowOpacity' ? 'svd_win_opacity' : ('cfg_' + key);
GM_setValue(storeKey, value);
}
/* ══════════════════════════════════════════════════════════
STATE
══════════════════════════════════════════════════════════ */
var dirHandle = null;
var videoInfo = null;
var isDownloading = false;
var lastNavUrl = '';
var imageDownloading = false;
var capturedCovers = [];
var xhsNoteData = null;
var detectedUrls = new Set();
var sniffMemoryVault = [];
var isSniffSectionVisible = GM_getValue('sniff_section_visible', false);
var sniffFirstCopied = false; // 自动复制首条:本次会话仅一次
/* ══════════════════════════════════════════════════════════
PLATFORM DETECTION
══════════════════════════════════════════════════════════ */
function isDouyin() { return location.hostname.includes('douyin.com'); }
function isXiaohongshu() { return location.hostname.includes('xiaohongshu.com'); }
function isBili() { return location.hostname.includes('bilibili.com'); }
function isDyOrXhs() { return isDouyin() || isXiaohongshu(); }
/* ══════════════════════════════════════════════════════════
UTILS
══════════════════════════════════════════════════════════ */
function q(id) { return document.getElementById(id); }
function esc(s) { return String(s||'').replace(/&/g,'&').replace(//g,'>'); }
function avPh() { var d=document.createElement('div'); d.className='svd-avph'; d.textContent='👤'; return d; }
function setStatus(m, c) {
var e = q('svd-stattxt');
if (!e) return;
e.textContent = m;
e.className = c || '';
}
function setProgress(r) {
var b = q('svd-prog'), f = q('svd-progfill');
if (!b || !f) return;
if (r <= 0 || r >= 1) { b.style.display = 'none'; f.style.width = '0%'; }
else { b.style.display = 'block'; f.style.width = (r * 100).toFixed(1) + '%'; }
}
function setBtnsEnabled(on) {
var vb = q('svd-btn-v'), cb = q('svd-btn-c');
if (!on) { if (vb) vb.disabled = true; if (cb) cb.disabled = true; return; }
if (vb) vb.disabled = !!(videoInfo && videoInfo.isImagePost);
if (cb) cb.disabled = !(videoInfo && videoInfo.coverUrl);
}
function sanitize(s) { return (s||'').replace(/[\\/:*?"<>|\r\n]/g,'_').trim().substring(0,80); }
/** 从 URL 提取自然文件名,用于嗅探下载 */
function getUrlFilename(url) {
try {
var pathname = new URL(url).pathname;
var parts = pathname.split('/').filter(Boolean);
var last = parts[parts.length - 1] || '';
if (last) return decodeURIComponent(last);
} catch(e) {}
var m = url.match(/\/([^/?#]+)(?:\?|#|$)/);
return m ? decodeURIComponent(m[1]) : 'video.mp4';
}
function copyToClipboard(text) {
if (navigator.clipboard && navigator.clipboard.writeText) return navigator.clipboard.writeText(text);
return new Promise(function(resolve, reject) {
var ta = document.createElement('textarea');
ta.value = text; ta.style.cssText = 'position:fixed;opacity:0';
document.body.appendChild(ta); ta.select();
try { document.execCommand('copy'); resolve(); } catch(e) { reject(e); }
document.body.removeChild(ta);
});
}
/** 通知（带回退）*/
function notify(title, text) {
if (!SETTINGS.notifyOnComplete) return;
try {
if (typeof GM_notification === 'function') {
GM_notification({ title: title, text: text, timeout: 4000, silent: false });
return;
}
} catch(e) {}
// 回退到浏览器原生
try {
if ('Notification' in window && Notification.permission === 'granted') {
new Notification(title, { body: text });
}
} catch(e) {}
}
/* ══════════════════════════════════════════════════════════
INDEXEDDB — 目录句柄持久化
══════════════════════════════════════════════════════════ */
function _idbOp(mode, fn) {
return new Promise(function(resolve) {
var req = indexedDB.open('svd_fs_db', 1);
req.onupgradeneeded = function(e) { e.target.result.createObjectStore('handles'); };
req.onsuccess = function(e) { fn(e.target.result, resolve); };
req.onerror = function() { resolve(null); };
});
}
function _idbSaveHandle(handle) {
return _idbOp('readwrite', function(db, resolve) {
var tx = db.transaction('handles', 'readwrite');
tx.objectStore('handles').put(handle, 'dir');
tx.oncomplete = function() { db.close(); resolve(true); };
tx.onerror = function() { db.close(); resolve(false); };
});
}
function _idbLoadHandle() {
return _idbOp('readonly', function(db, resolve) {
var tx = db.transaction('handles', 'readonly');
var gr = tx.objectStore('handles').get('dir');
gr.onsuccess = function() { db.close(); resolve(gr.result || null); };
gr.onerror = function() { db.close(); resolve(null); };
});
}
async function _restoreDirHandle() {
try {
var handle = await _idbLoadHandle();
if (!handle) return;
var perm = await handle.queryPermission({ mode: 'readwrite' });
if (perm === 'granted') {
dirHandle = handle;
_applyDirHandleUI(handle.name, true);
} else {
GM_setValue('svd_last_dir_name', handle.name);
_applyDirHandleUI(handle.name, false);
}
} catch(e) {}
}
function _applyDirHandleUI(name, authorized) {
var d = q('svd-path-txt');
if (!d) return;
if (authorized) {
d.textContent = '📁 ' + name + ' (已授权)';
d.title = '目录:' + name;
} else {
d.textContent = '📁 ' + name + '(请点击按钮重新授权)';
}
d.classList.add('set');
}
/* ══════════════════════════════════════════════════════════
SNIFFER — 视频链接嗅探
══════════════════════════════════════════════════════════ */
function getResTag(u) {
u = u.toLowerCase();
if (u.includes('8k') || u.includes('4320')) return '[👑 8K] ';
if (u.includes('4k') || u.includes('2160')) return '[💎 4K] ';
if (u.includes('1080') || u.includes('1920')) return '[🔥 1080P] ';
if (u.includes('720')) return '[🎬 720P] ';
if (u.includes('480')) return '[📺 480P] ';
return '';
}
/** 从 URL 推断分辨率（粗略）*/
function getUrlResolution(u) {
u = u.toLowerCase();
if (u.includes('8k') || u.includes('4320')) return 4320;
if (u.includes('4k') || u.includes('2160')) return 2160;
if (u.includes('1080') || u.includes('1920')) return 1080;
if (u.includes('720')) return 720;
if (u.includes('480')) return 480;
if (u.includes('360')) return 360;
return 0; // 未知
}
/** 判断链接类型 */
function getLinkType(u) {
if (/\.m3u8(\?|$)/i.test(u)) return 'm3u8';
if (/\.mp4(\?|$)/i.test(u)) return 'mp4';
return 'other';
}
function tryRemoveWatermark(rawUrl) {
try {
var u = new URL(rawUrl, location.href);
var wmParams = ['watermark','wm','x-watermark','x-wm','logo'];
var changed = false;
wmParams.forEach(function(p) { if (u.searchParams.has(p)) { u.searchParams.delete(p); changed = true; } });
var newPath = u.pathname.replace(/\/watermark\//i, '/');
if (newPath !== u.pathname) { u.pathname = newPath; changed = true; }
return changed ? u.href : null;
} catch(e) {}
return null;
}
function addUrl(url, customTitle, isBiliBatch) {
if (typeof url !== 'string') return;
var fingerprint = url.split('?')[0];
if (detectedUrls.has(fingerprint)) return;
if (!isBiliBatch &&
!/\.(m3u8|mp4|ts|m4s|mpd|m4v|mkv|webm|mov|avi|flv)(\?|$)/i.test(url) &&
!/\/video\/|\/vod\/|\/stream\/|\/playlist\/|m3u8/i.test(url)) return;
if (url.includes('fragment') && (url.includes('.ts') || url.includes('seg-'))) return;
// ── 用户筛选规则 ──────────────────────────────
if (!isBiliBatch) {
// 最低分辨率过滤
var minRes = parseInt(SETTINGS.minResolution, 10) || 0;
if (minRes > 0) {
var res = getUrlResolution(url);
if (res > 0 && res < minRes) return; // 已知分辨率且低于阈值才过滤
}
// 链接类型过滤
if (SETTINGS.linkTypeFilter !== 'all') {
var lt = getLinkType(url);
if (lt !== SETTINGS.linkTypeFilter) return;
}
}
if (window.self !== window.top) {
window.top.postMessage({ type: 'VIDEO_SNIFF_ADD', url: url, customTitle: customTitle, isBiliBatch: isBiliBatch }, '*');
return;
}
detectedUrls.add(fingerprint);
sniffMemoryVault.push({ url: url, customTitle: customTitle, isBiliBatch: isBiliBatch });
renderSingleSniffItem({ url: url, customTitle: customTitle, isBiliBatch: isBiliBatch });
updateSniffStatus();
// 自动复制首条
if (SETTINGS.autoCopyFirst && !sniffFirstCopied && !isBiliBatch) {
sniffFirstCopied = true;
copyToClipboard(url).then(function() {
setStatus('🔗 已自动复制首条嗅探链接', 'ok');
}).catch(function() {});
}
if (customTitle && !isBiliBatch) {
var cleanUrl = tryRemoveWatermark(url);
if (cleanUrl) {
var cleanFP = cleanUrl.split('?')[0];
if (!detectedUrls.has(cleanFP)) addUrl(cleanUrl, customTitle + '(去水印尝试)', false);
}
}
}
function renderSingleSniffItem(item) {
var list = q('svd-m3u8-list');
if (!list) return;
var li = document.createElement('li');
li.className = 'svd-m3u8-item';
var rawTag = getResTag(item.url);
var tagText = item.isBiliBatch ? '🎬 选集'
: (rawTag ? rawTag.replace(/<[^>]+>/g, '').trim() : '');
var tagClass = item.isBiliBatch ? 'svd-tag-bili' : 'svd-tag-res';
var title = item.customTitle
|| item.url.split('?')[0].split('/').filter(Boolean).pop()
|| item.url.split('?')[0].substring(0, 50);
var header = document.createElement('div');
header.className = 'svd-sniff-header';
header.innerHTML = (tagText ? '' + esc(tagText) + '' : '')
+ '' + esc(title) + ''
+ '▾';
header.addEventListener('click', function() {
li.classList.toggle('collapsed');
});
var body = document.createElement('div');
body.className = 'svd-sniff-body';
// 视频预览（受设置控制）
if (SETTINGS.showSniffPreview) {
var vid = document.createElement('video');
vid.className = 'svd-sniff-video';
vid.preload = 'metadata';
vid.title = '点击播放 / 暂停';
vid.style.cursor = 'pointer';
vid.addEventListener('click', function() {
if (vid.paused) vid.play().catch(function() {}); else vid.pause();
});
if ('IntersectionObserver' in window) {
var obs = new IntersectionObserver(function(entries, o) {
if (entries[0].isIntersecting) { vid.src = item.url; o.disconnect(); }
}, { threshold: 0.05 });
obs.observe(vid);
} else {
vid.src = item.url;
}
body.appendChild(vid);
}
var footer = document.createElement('div');
footer.className = 'svd-sniff-footer';
var cb = document.createElement('input');
cb.type = 'checkbox'; cb.className = 'svd-sniff-checkbox';
cb.dataset.url = item.url;
cb.dataset.bili = item.isBiliBatch ? '1' : '';
cb.addEventListener('click', function(e) { e.stopPropagation(); });
var urlSnip = document.createElement('div');
urlSnip.className = 'svd-sniff-urlsnip';
try { urlSnip.textContent = new URL(item.url).hostname; } catch(e) { urlSnip.textContent = item.url.substring(0, 30); }
var actions = document.createElement('div');
actions.className = 'svd-sniff-actions';
var copyBtn = document.createElement('button');
copyBtn.className = 'svd-sniff-copy';
copyBtn.textContent = '复制';
copyBtn.title = '复制链接';
copyBtn.onclick = function(e) {
e.stopPropagation();
copyToClipboard(item.url)
.then(function() { setStatus('链接已复制', 'ok'); })
.catch(function() { setStatus('复制失败', 'err'); });
};
var dlBtn = document.createElement('button');
dlBtn.className = 'svd-sniff-dl';
dlBtn.textContent = '下载';
dlBtn.title = '下载视频';
dlBtn.onclick = function(e) {
e.stopPropagation();
downloadBestQuality(item.url, getUrlFilename(item.url), '嗅探视频');
};
actions.appendChild(copyBtn);
actions.appendChild(dlBtn);
footer.appendChild(cb);
footer.appendChild(urlSnip);
footer.appendChild(actions);
body.appendChild(footer);
li.appendChild(header);
li.appendChild(body);
list.prepend(li);
updateSniffGrid();
}
function updateSniffGrid() {
var list = q('svd-m3u8-list');
if (!list) return;
var count = list.children.length;
var cols = Math.min(Math.max(count, 1), 4);
list.className = 'svd-cols-' + cols;
var empty = q('svd-sniff-empty');
if (empty) empty.style.display = count === 0 ? 'block' : 'none';
if (typeof updateMainTabBadge === 'function') updateMainTabBadge();
}
function captureVideoElementSrcs() {
document.querySelectorAll('video').forEach(function(v) {
var src = v.currentSrc || v.src;
if (src && !/^(blob:|data:)/i.test(src)) addUrl(src);
v.querySelectorAll('source').forEach(function(s) {
var ss = s.getAttribute('src');
if (ss && !/^(blob:|data:)/i.test(ss)) addUrl(ss);
});
});
}
function updateSniffStatus() {
if (isDyOrXhs()) return;
if (isSniffSectionVisible) captureVideoElementSrcs();
if (isSniffSectionVisible) {
var count = detectedUrls.size;
setStatus(count > 0 ? ('✅ 已嗅探到 ' + count + ' 个链接,可下载或复制') : '📡 嗅探面板已开启,播放视频后自动捕获链接', count > 0 ? 'ok' : 'info');
} else {
setStatus('📡 请打开嗅探面板以捕获视频链接', 'info');
}
}
/* ══════════════════════════════════════════════════════════
NETWORK INTERCEPTORS — 封面捕获 + 嗅探 + 小红书数据
══════════════════════════════════════════════════════════ */
function isCoverUrl(url) {
return /byteimg\.com\/img\/|douyinstatic\.com|pstatp\.com|xhscdn\.com|xiaohongshu\.com/.test(url) &&
/\.(jpe?g|webp|png)/.test(url) && !/avatar/.test(url);
}
function captureCoverUrl(rawUrl) {
if (!rawUrl || typeof rawUrl !== 'string' || /^(blob:|data:)/.test(rawUrl)) return;
var url; try { url = decodeURIComponent(rawUrl); } catch(e) { url = rawUrl; }
if (isCoverUrl(url)) pushCoverCapture(url);
}
function pushCoverCapture(url) {
var base = url.split('?')[0];
for (var i = 0; i < capturedCovers.length; i++) {
if (capturedCovers[i].url.split('?')[0] === base) { capturedCovers[i].ts = Date.now(); return; }
}
capturedCovers.push({ url: url, ts: Date.now() });
capturedCovers.sort(function(a, b) { return b.ts - a.ts; });
if (capturedCovers.length > 20) capturedCovers.pop();
}
function bestCover() {
if (!capturedCovers.length) return null;
var now = Date.now();
var fresh = capturedCovers.filter(function(c) { return now - c.ts < 90000; });
return (fresh.length ? fresh[0] : capturedCovers[0]).url;
}
function extractXiaohongshuFromResponse(responseText) {
try {
var data = JSON.parse(responseText);
var note = null;
if (data && data.data) {
note = data.data.note_card || data.data.note ||
(data.data.items && data.data.items.length && data.data.items[0].note_card) || null;
}
if (!note) return;
_buildXhsNoteData(note, null);
} catch(e) { console.warn('[XHS] 解析笔记数据失败:', e); }
}
function _buildXhsNoteData(note, noteIdOverride) {
var images = [];
if (note.image_list) {
images = note.image_list.map(function(img) {
var infoList = img.info_list || [];
var url = img.url_default || (infoList.length && infoList[infoList.length-1].url) || (infoList[0] && infoList[0].url) || '';
var liveUrl = (img.live_photo && img.stream && img.stream.h264 && img.stream.h264[0] && img.stream.h264[0].master_url) || '';
return { url: url, liveUrl: liveUrl };
});
}
var videoUrl = '';
if (note.video) {
var stream = (note.video.media && note.video.media.stream) || note.video.stream || null;
videoUrl = (stream && stream.h265 && stream.h265[0] && stream.h265[0].master_url) ||
(stream && stream.h264 && stream.h264[0] && stream.h264[0].master_url) || '';
}
xhsNoteData = {
platform: '小红书',
author: (note.user && (note.user.nickname || note.user.nick_name)) || '未知作者',
authorId: (note.user && note.user.user_id) || '',
avatarUrl: (note.user && note.user.avatar) || '',
desc: note.title || note.desc || '无文案',
createTime: note.time ? new Date(note.time).toLocaleString('zh-CN', {hour12:false}) : '未知',
coverUrl: (note.image_list && note.image_list[0] && note.image_list[0].url_default) ||
(note.video && note.video.image && note.video.image.thumbnail) || '',
videoUrl: videoUrl,
isImagePost: !videoUrl && images.length > 0,
images: images,
noteId: note.note_id || noteIdOverride || '',
ipLocation: note.ip_location || '',
topics: []
};
renderInfo(xhsNoteData);
}
(function setupInterceptors() {
try {
var _origFetch = unsafeWindow.fetch;
unsafeWindow.fetch = function() {
var a = Array.prototype.slice.call(arguments);
var url = typeof a[0] === 'string' ? a[0] : (a[0] && a[0].url) || '';
captureCoverUrl(url);
if (url) {
try {
var abs = new URL(url, location.href).href;
if (/\.(m3u8|mp4)(\?|$)/i.test(abs)) addUrl(abs);
} catch(e) {}
}
return _origFetch.apply(this, a);
};
} catch(e) {}
var _origOpen = unsafeWindow.XMLHttpRequest.prototype.open;
var _origSend = unsafeWindow.XMLHttpRequest.prototype.send;
unsafeWindow.XMLHttpRequest.prototype.open = function(method, url) {
this._url = url;
captureCoverUrl(typeof url === 'string' ? url : '');
return _origOpen.apply(this, arguments);
};
unsafeWindow.XMLHttpRequest.prototype.send = function() {
var self = this, url = self._url;
if (url) {
try {
var abs = new URL(url, location.href).href;
if (/\.(m3u8|mp4)(\?|$)/i.test(abs)) addUrl(abs);
} catch(e) {}
}
if (isXiaohongshu() && url && (
url.includes('/api/sns/web/v1/feed') ||
url.includes('/api/sns/web/v2/note/detail') ||
url.includes('/api/sns/web/v1/note/user_posted') ||
url.includes('/api/sns/web/v1/note/detail')
)) {
self.addEventListener('load', function() {
if (self.status === 200) extractXiaohongshuFromResponse(self.responseText);
});
}
return _origSend.apply(this, arguments);
};
if (isXiaohongshu() && location.pathname.startsWith('/explore/')) {
function tryExtractInitialState() {
try {
var state = unsafeWindow.__INITIAL_STATE__;
if (!state || !state.note) return false;
var noteId = location.pathname.split('/').pop();
var noteMap = state.note.noteDetailMap;
var noteEntry = noteMap && noteMap[noteId] && noteMap[noteId].note;
if (!noteEntry) return false;
_buildXhsNoteData(noteEntry, noteId);
return true;
} catch(e) {}
return false;
}
setTimeout(function() {
if (!xhsNoteData) {
if (!tryExtractInitialState()) setTimeout(function() { if (!xhsNoteData) tryExtractInitialState(); }, 2000);
}
}, 2500);
}
if (isBili()) {
window.scanBili = function() {
var count = 0;
document.querySelectorAll('.imageListItem_wrap__o28QW, .video-pod__item').forEach(function(el) {
var bv = el.getAttribute('data-key');
var a = el.querySelector('a');
if (bv) { addUrl('https://www.bilibili.com/video/' + bv, el.querySelector('.title') && el.querySelector('.title').innerText.trim(), true); count++; }
else if (a) { addUrl(new URL(a.getAttribute('href'), location.href).href, el.querySelector('.imageListItem_titleWrap__YTlLH') && el.querySelector('.imageListItem_titleWrap__YTlLH').getAttribute('title'), true); count++; }
});
setStatus(count > 0 ? ('已扫描到 ' + count + ' 个选集') : '未找到可扫描的选集', count > 0 ? 'ok' : 'info');
};
}
window.addEventListener('message', function(e) {
if (e.data && e.data.type === 'VIDEO_SNIFF_ADD') {
addUrl(e.data.url, e.data.customTitle, e.data.isBiliBatch);
}
});
})();
/* ══════════════════════════════════════════════════════════
DOUYIN OBSERVER
══════════════════════════════════════════════════════════ */
var _itemObserver = null, _currentItemKey = null;
function getItemKey(el) {
return el.getAttribute('data-aweme-id') || el.getAttribute('data-id') ||
el.dataset.awemeid || el.dataset.id ||
(el.parentElement ? Array.prototype.indexOf.call(el.parentElement.children, el) : 0) + '_i';
}
function setupItemObserver() {
if (!isDouyin()) return;
if (_itemObserver) { _itemObserver.disconnect(); _itemObserver = null; }
var items = document.querySelectorAll('.page-recommend-container,.dySwiperSlide[data-e2e="feed-item"]');
if (!items.length) return;
_itemObserver = new IntersectionObserver(function(entries) {
entries.forEach(function(entry) {
if (entry.intersectionRatio >= 0.65) {
var key = getItemKey(entry.target);
if (key && key !== _currentItemKey) {
_currentItemKey = key;
capturedCovers = [];
xhsNoteData = null;
if (!isDownloading) setTimeout(doRefresh, 900);
}
}
});
}, { threshold: [0.65] });
Array.prototype.forEach.call(items, function(item) { _itemObserver.observe(item); });
}
var _domWatcher = null;
function watchForNewItems() {
if (!isDouyin() || _domWatcher) return;
_domWatcher = new MutationObserver(function(m) {
for (var i = 0; i < m.length; i++) { if (m[i].addedNodes.length) { setTimeout(setupItemObserver, 200); break; } }
});
_domWatcher.observe(document.body, { childList: true, subtree: true });
}
/* ══════════════════════════════════════════════════════════
VIDEO EXTRACTION — 抖音
══════════════════════════════════════════════════════════ */
function findCurrentFeedItem() {
if (!isDouyin()) return null;
var vids = Array.prototype.slice.call(document.querySelectorAll('video'));
var playing = null;
for (var i = 0; i < vids.length; i++) {
if (!vids[i].paused && vids[i].readyState >= 2 && vids[i].currentTime > 0) { playing = vids[i]; break; }
}
if (!playing && vids.length) {
var bestV = -1;
for (var j = 0; j < vids.length; j++) {
var r = vids[j].getBoundingClientRect();
var v = Math.min(r.bottom, window.innerHeight) - Math.max(r.top, 0);
if (v > bestV) { bestV = v; playing = vids[j]; }
}
}
if (playing) {
var el = playing.parentElement;
while (el && el !== document.body) {
if (el.classList.contains('page-recommend-container') || el.dataset.e2e === 'feed-item' ||
el.id === 'slideMode' || el.classList.contains('playerControlHeight')) return el;
el = el.parentElement;
}
}
var items = Array.prototype.slice.call(document.querySelectorAll(
'.page-recommend-container,.dySwiperSlide[data-e2e="feed-item"],#slideMode,.playerControlHeight'
));
var best = null, bestVis = -1;
for (var k = 0; k < items.length; k++) {
var rr = items[k].getBoundingClientRect();
var vv = Math.min(rr.bottom, window.innerHeight) - Math.max(rr.top, 0);
if (vv > bestVis) { bestVis = vv; best = items[k]; }
}
return best;
}
function hasImageTextBadge(container) {
if (!container) return false;
var all = container.querySelectorAll('span,div,a,em,i,button');
for (var i = 0; i < all.length; i++) { if (all[i].textContent.trim() === '图文') return true; }
return !!(
container.querySelector('.xgplayer-progress-outer.picture') ||
container.querySelector('[class*="pictureMode"],[class*="PicTextTag"],[class*="picTextTag"]') ||
container.querySelector('[class*="imageTextTag"],[class*="ImageTextTag"],[class*="img-text-tag"]') ||
container.getAttribute('data-type') === 'image'
);
}
function isContentImg(img) {
if (!img) return false;
var src = img.src || img.getAttribute('data-src') || '';
if (!src || /^(blob:|data:)/.test(src) || src.length < 20) return false;
if (/avatar|emoji|icon|logo|dot|indicator/i.test(src)) return false;
if (/avatar|emoji|icon|logo|dot|indicator/i.test(img.className || '')) return false;
var w = img.naturalWidth || img.width || 0;
var h = img.naturalHeight || img.height || 0;
if (w > 0 && w < 50) return false;
if (h > 0 && h < 50) return false;
var par = img.parentElement;
for (var i = 0; i < 3 && par; i++) {
if (/avatar|Avatar|userPhoto/i.test(par.className || '')) return false;
par = par.parentElement;
}
return true;
}
function extractSlideImages(container) {
var images = [], seen = {};
var slideSelectors = '[class*="swiper-slide"],[class*="SwiperSlide"],[class*="slide-item"],[class*="ImageItem"],[class*="imageItem"],[class*="pic-item"]';
var slides = container.querySelectorAll(slideSelectors);
if (slides.length >= 2) {
for (var i = 0; i < slides.length; i++) {
var img = (function(sl) {
var imgs = sl.querySelectorAll('img');
for (var j = 0; j < imgs.length; j++) {
if (isContentImg(imgs[j])) return imgs[j].src || imgs[j].getAttribute('data-src') || '';
}
return null;
})(slides[i]);
if (img && !seen[img]) { seen[img] = true; images.push(img); }
}
if (images.length >= 2) return images;
}
var wrapper = container.querySelector('[class*="swiper-wrapper"],[class*="SwiperWrapper"],[class*="carousel"],[class*="Carousel"]');
if (wrapper) {
var imgs = wrapper.querySelectorAll('img');
for (var j = 0; j < imgs.length; j++) {
if (isContentImg(imgs[j])) {
var src = imgs[j].src || imgs[j].getAttribute('data-src') || '';
if (src && !seen[src]) { seen[src] = true; images.push(src); }
}
}
}
return images;
}
function detectImagePost(container) {
if (!container || !hasImageTextBadge(container)) return { isImage: false, images: [] };
return { isImage: true, images: extractSlideImages(container) };
}
function extractCover(container) {
if (!container) return bestCover() || '';
var xgPoster = container.querySelector('.xgplayer-poster,.xg-poster,[class*="xgplayer-poster"],[class*="xg-poster"]');
if (xgPoster) {
var bgStyle = xgPoster.getAttribute('style') || '';
var bgMatch = bgStyle.match(/background(?:-image)?\s*:\s*url\(["']?(https?:[^"')]+)["']?\)/) ||
window.getComputedStyle(xgPoster).backgroundImage.match(/url\(["']?(https?:[^"')]+)["']?\)/);
if (bgMatch) return bgMatch[1];
var xgImg = xgPoster.querySelector('img');
if (xgImg && xgImg.src && !/^(blob:|data:)/.test(xgImg.src)) return xgImg.src;
}
var coverSels = ['img[class*="cover"]','img[class*="Cover"]','img[class*="poster"]','img[class*="Poster"]','img[class*="thumb"]','img[class*="Thumb"]'];
for (var s = 0; s < coverSels.length; s++) {
var ci = container.querySelector(coverSels[s]);
if (ci && isContentImg(ci)) return ci.src;
}
var imgs = container.querySelectorAll('img');
for (var i = 0; i < imgs.length; i++) {
var src = imgs[i].src || imgs[i].getAttribute('data-src') || '';
if (isContentImg(imgs[i]) && src) return src;
}
var bgEls = container.querySelectorAll('[class*="cover"],[class*="poster"],[class*="mask"]');
for (var b = 0; b < bgEls.length; b++) {
var bg = window.getComputedStyle(bgEls[b]).backgroundImage;
var m = bg.match(/url\(["']?(https?:[^"')]+)["']?\)/);
if (m) return m[1];
}
return bestCover() || '';
}
function extractFromRenderData() {
if (!isDouyin()) return null;
try {
var el = document.getElementById('RENDER_DATA');
if (!el) return null;
var raw = JSON.parse(decodeURIComponent(el.textContent));
var detail = null;
for (var key in raw) {
if (key === '_location' || key === 'app' || key === '11') continue;
if (raw[key] && raw[key].videoDetail) { detail = raw[key].videoDetail; break; }
}
if (!detail) return null;
var author = detail.authorInfo || detail.author || {};
var video = detail.video || {};
var textExtra = detail.textExtra || [];
var videoUrl = null;
var bitrates = video.bitRate || [];
if (bitrates.length > 0) {
bitrates.sort(function(a, b) { return (b.bit_rate || 0) - (a.bit_rate || 0); });
var best = bitrates[0];
if (best && best.play_addr && best.play_addr.url_list && best.play_addr.url_list.length) {
videoUrl = best.play_addr.url_list[0].replace(/^\/\//, 'https://');
}
}
if (!videoUrl) {
var pa = video.play_addr;
if (pa && pa.url_list && pa.url_list.length) videoUrl = pa.url_list[0].replace(/^\/\//, 'https://');
}
if (!videoUrl) {
var h264 = video.h264_packed_addr;
if (h264 && h264.url_list && h264.url_list.length) videoUrl = h264.url_list[0].replace(/^\/\//, 'https://');
}
var coverList = ((video.cover || {}).urlList) || ((video.dynamicCover || {}).urlList) || ((video.originCover || {}).urlList) || [];
var coverUrl = coverList[0] || bestCover() || '';
var avList = ((author.avatarThumb || {}).urlList) || ((author.avatarMedium || {}).urlList) || [];
var topics = textExtra.filter(function(t) { return t.hashtagName; }).map(function(t) { return '#' + t.hashtagName; });
var rawTime = detail.create_time || detail.createTime;
var hasImages = !!(detail.imageAlbumMusicInfo || (detail.images && detail.images.length));
var container = findCurrentFeedItem();
var isImagePost = hasImages || (container && hasImageTextBadge(container));
var images = isImagePost ? (detail.images || []).map(function(img) {
var list = img.urlList || [];
return list[list.length - 1] || list[0] || '';
}).filter(Boolean) : [];
return {
platform: '抖音',
author: author.nickname || author.uniqueId || '未知作者',
authorId: author.uniqueId || '',
avatarUrl: avList[0] || '',
createTime: rawTime ? new Date(rawTime * 1000).toLocaleString('zh-CN', {hour12:false}) : '未知',
desc: detail.desc || detail.title || '无文案',
topics: topics,
coverUrl: coverUrl,
videoUrl: videoUrl,
isImagePost: isImagePost,
images: images
};
} catch(e) { console.warn('[SVD] RENDER_DATA:', e); return null; }
}
function getHeaders() {
var origin = location.origin, referer = location.href;
if (isDouyin()) { origin = 'https://www.douyin.com'; referer = 'https://www.douyin.com/'; }
else if (isXiaohongshu()) { origin = 'https://www.xiaohongshu.com'; referer = 'https://www.xiaohongshu.com/'; }
return {
'User-Agent': 'Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/126.0.0.0 Safari/537.36',
'Origin': origin, 'Referer': referer
};
}
function getCurrentVideoElement() {
var container = findCurrentFeedItem() || document.querySelector('.playerControlHeight') || document.getElementById('slideMode');
return container ? container.querySelector('video') : null;
}
function getVideoUrlFromDom(videoEl) {
if (!videoEl) return null;
var src = videoEl.currentSrc || videoEl.getAttribute('src') || '';
if (src && !/^(blob:|data:)/.test(src) && /^https?:/.test(src)) {
try { return decodeURI(src); } catch(e) { return src; }
}
var sources = videoEl.querySelectorAll('source');
for (var i = 0; i < sources.length; i++) {
var s = sources[i].getAttribute('src') || '';
if (s && !/^(blob:|data:)/.test(s) && /^https?:/.test(s)) {
try { return decodeURI(s); } catch(e) { return s; }
}
}
return null;
}
function extractVideoInfo() {
if (isDouyin()) {
var rd = extractFromRenderData();
if (rd) {
if (!rd.videoUrl) rd.videoUrl = getVideoUrlFromDom(getCurrentVideoElement());
return rd;
}
var sm = document.getElementById('slideMode');
if (sm) return extractFromContainer(sm, false);
var pc = document.querySelector('.playerControlHeight');
if (pc) return extractFromContainer(pc, true);
var fi = findCurrentFeedItem();
if (fi) return extractFromFeedItem(fi);
return null;
} else if (isXiaohongshu()) {
return xhsNoteData;
}
return null;
}
function extractFromFeedItem(item) {
var author = ((item.querySelector('.account-name') || {textContent:''}).textContent || '').trim() || '未知作者';
var avEl = item.querySelector('[class*="avatar"] img,.avatar img,img[class*="Avatar"]');
var desc = '无文案';
var te = item.querySelector('.title');
if (te) { var sp = te.querySelector('span'); desc = ((sp && sp.textContent) || te.textContent || '').replace('展开', '').trim(); }
var topics = [];
var tags = item.querySelectorAll('a[href*="hashtag"],[class*="Tag"],[class*="tag"]');
for (var i = 0; i < tags.length; i++) { var tt = tags[i].textContent.trim(); if (tt && tt[0] === '#' && topics.indexOf(tt) === -1) topics.push(tt); }
var imgPost = detectImagePost(item);
var timeEl = item.querySelector('[class*="create-time"],[class*="createTime"],[data-e2e="video-time"],[class*="publish-time"]');
return {
platform: '抖音', author: author, authorId: '', avatarUrl: avEl ? avEl.src : '',
createTime: timeEl ? timeEl.textContent.trim() : '未知',
desc: desc, topics: topics,
coverUrl: extractCover(item),
videoUrl: imgPost.isImage ? null : getVideoUrlFromDom(item.querySelector('video')),
isImagePost: imgPost.isImage, images: imgPost.images
};
}
function extractFromContainer(container, isDetail) {
var an = container.querySelector('.account-name,[class*="nickname"] span,[class*="accountName"] span');
var desc = '无文案';
if (isDetail) { var h1 = container.querySelector('h1'); if (h1) desc = h1.textContent.trim(); }
else { var tn = container.querySelector('.title'); if (tn) desc = tn.textContent.replace('展开', '').trim(); }
var imgPost = detectImagePost(container);
var timeEl = container.querySelector('[class*="create-time"],[class*="createTime"],[data-e2e="video-time"],[class*="publish-time"]');
return {
platform: '抖音', author: (an && an.textContent.trim()) || '未知作者', authorId: '',
avatarUrl: container.querySelector('[class*="avatar"] img,.avatar img') ? container.querySelector('[class*="avatar"] img,.avatar img').src : '',
createTime: timeEl ? timeEl.textContent.trim() : '未知',
desc: desc, topics: [],
coverUrl: extractCover(container),
videoUrl: imgPost.isImage ? null : getVideoUrlFromDom(container.querySelector('video')),
isImagePost: imgPost.isImage, images: imgPost.images
};
}
/* ══════════════════════════════════════════════════════════
DOWNLOAD CORE
══════════════════════════════════════════════════════════ */
/** 应用文件名模板 */
function applyFilenameTemplate(template, info, type, idx) {
var now = new Date();
var date = now.getFullYear() + ('0'+(now.getMonth()+1)).slice(-2) + ('0'+now.getDate()).slice(-2);
var time = ('0'+now.getHours()).slice(-2) + ('0'+now.getMinutes()).slice(-2) + ('0'+now.getSeconds()).slice(-2);
var map = {
'{author}': sanitize(info.author || '未知'),
'{desc}': sanitize((info.desc || '').substring(0, 30)),
'{platform}': sanitize(info.platform || ''),
'{date}': date,
'{time}': time,
'{datetime}': date + '_' + time,
'{index}': (idx != null ? (idx + 1) : '')
};
var out = template || '{author}-{desc}';
Object.keys(map).forEach(function(k) { out = out.split(k).join(map[k]); });
// 多余分隔符清理
out = out.replace(/[-_]+$/g, '').replace(/^[-_]+/g, '').replace(/[-_]{2,}/g, '-');
return out || '未命名';
}
function getFilename(info, type, idx) {
// 优先级: 用户输入框 > 模板
var customName = '';
var inputEl = q('svd-filename-input');
if (inputEl) customName = inputEl.value.trim();
var baseName;
if (customName) {
baseName = sanitize(customName);
} else {
baseName = applyFilenameTemplate(SETTINGS.filenameTemplate, info || {author:'未知',desc:'视频'}, type, idx);
}
if (type === 'video') return baseName + '.mp4';
if (type === 'cover') return baseName + '_封面.jpg';
if (type === 'image') return baseName + '_图文第' + (idx + 1) + '张.jpg';
return baseName + '.bin';
}
function resolveVideoUrl(rawUrl, callback) {
if (!rawUrl) { callback(null); return; }
var method = navigator.userAgent.indexOf('Firefox') !== -1 ? 'GET' : 'HEAD';
GM_xmlhttpRequest({
method: method, url: rawUrl, headers: getHeaders(), cookie: document.cookie, timeout: 20000,
onload: function(res) {
if (res.status === 200) callback(rawUrl);
else if (res.status === 302) {
var m = (res.responseHeaders || '').match(/[Ll]ocation:\s*(.+)/);
callback(m ? m[1].trim() : rawUrl);
} else if (res.status === 401 || res.status === 403) {
finishDL(false, '链接已失效,请重新加载视频后下载');
} else callback(rawUrl);
},
onerror: function() { callback(rawUrl); }
});
}
function startDownloadWithUrl(rawUrl) {
if (!videoInfo) videoInfo = extractVideoInfo() || { author: '未知', desc: '视频' };
videoInfo.videoUrl = rawUrl;
isDownloading = true;
setBtnsEnabled(false);
setStatus('正在解析视频地址...', 'info');
setProgress(0.02);
var lockedFilename = getFilename(videoInfo, 'video');
var lockedAuthor = videoInfo.author || '未知';
var ue = q('svd-f-url');
if (ue && rawUrl) {
ue.textContent = rawUrl.substring(0, 90) + (rawUrl.length > 90 ? '…' : '');
ue.className = 'svd-url found';
}
resolveVideoUrl(rawUrl, function(finalUrl) {
if (!finalUrl) { finishDL(false, '无法解析视频地址'); return; }
fetchBlob(finalUrl, lockedFilename, '视频 · ' + lockedAuthor, function(success) {
// 视频下载完成,如开启则自动下载封面
if (success && SETTINGS.autoSaveCover && videoInfo && videoInfo.coverUrl) {
setTimeout(function() {
doDownload(videoInfo.coverUrl, getFilename(videoInfo, 'cover'), '附带封面');
}, 500);
}
});
});
}
function doDownloadVideo() {
if (isDownloading) { setStatus('下载进行中...', 'info'); return; }
if (isDouyin()) {
var rd = extractFromRenderData();
if (rd && rd.videoUrl) { startDownloadWithUrl(rd.videoUrl); return; }
var domUrl = getVideoUrlFromDom(getCurrentVideoElement());
if (domUrl) { startDownloadWithUrl(domUrl); return; }
isDownloading = true; setBtnsEnabled(false);
setStatus('🔍 正在捕获视频链接...', 'info');
var captureDone = false, captureTimer = null;
var origFetch = unsafeWindow.fetch;
var origXHROpen = unsafeWindow.XMLHttpRequest.prototype.open;
var origXHRSend = unsafeWindow.XMLHttpRequest.prototype.send;
function captureAndRestore(url) {
if (captureDone) return;
captureDone = true;
unsafeWindow.fetch = origFetch;
unsafeWindow.XMLHttpRequest.prototype.open = origXHROpen;
unsafeWindow.XMLHttpRequest.prototype.send = origXHRSend;
if (captureTimer) clearTimeout(captureTimer);
var decoded; try { decoded = decodeURI(url); } catch(e) { decoded = url; }
startDownloadWithUrl(decoded);
}
unsafeWindow.fetch = function() {
var args = Array.prototype.slice.call(arguments);
var url = typeof args[0] === 'string' ? args[0] : (args[0] && args[0].url) || '';
if (url && (url.indexOf('.mp4') > -1 || url.indexOf('mime_type=video') > -1 || url.indexOf('douyinvod') > -1)) captureAndRestore(url);
if (url) { try { var a = new URL(url, location.href).href; if (/\.(m3u8|mp4)(\?|$)/i.test(a)) addUrl(a); } catch(e) {} }
return origFetch.apply(this, args);
};
unsafeWindow.XMLHttpRequest.prototype.open = function(method, url) {
if (typeof url === 'string' && (url.indexOf('.mp4') > -1 || url.indexOf('mime_type=video') > -1 || url.indexOf('douyinvod') > -1)) captureAndRestore(url);
return origXHROpen.apply(this, arguments);
};
var videoEl = getCurrentVideoElement();
if (videoEl) videoEl.load();
captureTimer = setTimeout(function() {
if (!captureDone) {
unsafeWindow.fetch = origFetch;
unsafeWindow.XMLHttpRequest.prototype.open = origXHROpen;
unsafeWindow.XMLHttpRequest.prototype.send = origXHRSend;
setStatus('❌ 捕获超时,请重试或刷新页面', 'err');
isDownloading = false; setBtnsEnabled(true); setProgress(0);
}
}, 8000);
} else if (isXiaohongshu()) {
if (!videoInfo || !videoInfo.videoUrl) { setStatus('❌ 未找到视频链接', 'err'); return; }
startDownloadWithUrl(videoInfo.videoUrl);
} else {
setStatus('请使用嗅探面板下载', 'info');
}
}
/** 快速下载当前视频(双击触发球用) */
function quickDownloadCurrent() {
if (isDownloading) { setStatus('下载进行中...', 'info'); return; }
if (isDyOrXhs()) {
// 确保信息已读取
if (!videoInfo) {
videoInfo = extractVideoInfo();
if (videoInfo) renderInfo(videoInfo);
}
if (!videoInfo) { setStatus('❌ 未读取到视频信息,请刷新一次', 'err'); return; }
if (videoInfo.isImagePost) { setStatus('当前为图文,请在主面板下载图片', 'info'); return; }
doDownloadVideo();
} else {
setStatus('当前页面不支持快速下载', 'info');
}
}
function doDownloadCover() {
var url = (videoInfo && videoInfo.coverUrl) || bestCover();
if (!url) { setStatus('未找到封面', 'err'); return; }
doDownload(url, getFilename(videoInfo || {author:'未知',desc:'封面'}, 'cover'), '封面');
}
function doDownload(url, filename, label) {
if (isDownloading) { setStatus('下载进行中...', 'info'); return; }
isDownloading = true; setBtnsEnabled(false);
setStatus('正在验证 ' + label + ' ...', 'info'); setProgress(0.02);
GM_xmlhttpRequest({
method: navigator.userAgent.indexOf('Firefox') !== -1 ? 'GET' : 'HEAD',
url: url, headers: getHeaders(), cookie: document.cookie, timeout: 20000,
onload: function(r) {
var fu = url;
if (r.status === 302) { var m = (r.responseHeaders||'').match(/[Ll]ocation:\s*(.+)/); if (m) fu = m[1].trim(); }
else if (r.status === 403 || r.status === 401) { finishDL(false, '链接已失效,请等视频重新加载后下载'); return; }
fetchBlob(fu, filename, label);
},
onerror: function() { fetchBlob(url, filename, label); }
});
}
function doDownloadImage(url, filename, onComplete) {
setStatus('正在下载图片: ' + filename, 'info');
GM_xmlhttpRequest({
method: 'GET', url: url, headers: getHeaders(), cookie: document.cookie,
responseType: 'blob', timeout: 60000,
onload: function(res) {
if (res.status === 200) {
saveFile(res.response, filename).then(function(r) {
setStatus((r.ok ? '✅ 已保存: ' : '❌ ') + filename, r.ok ? 'ok' : 'err');
if (r.ok) notify('图片已保存', filename);
if (onComplete) onComplete(r.ok);
});
} else {
setStatus('❌ 图片下载失败 HTTP ' + res.status, 'err');
if (onComplete) onComplete(false);
}
},
onerror: function() { setStatus('❌ 图片下载出错', 'err'); if (onComplete) onComplete(false); }
});
}
function resolveBestM3u8Stream(m3u8Url, content) {
var lines = content.split('\n'), bestBw = -1, bestUri = null, curBw = null;
for (var i = 0; i < lines.length; i++) {
var line = lines[i].trim();
if (line.startsWith('#EXT-X-STREAM-INF')) {
var bwMatch = line.match(/BANDWIDTH=(\d+)/);
curBw = bwMatch ? parseInt(bwMatch[1], 10) : 0;
} else if (line && !line.startsWith('#') && curBw !== null) {
if (curBw > bestBw) { bestBw = curBw; bestUri = line; }
curBw = null;
}
}
if (!bestUri) return null;
try { return new URL(bestUri, m3u8Url).href; } catch(e) { return bestUri; }
}
function downloadBestQuality(rawUrl, filename, label) {
if (!rawUrl) { setStatus('❌ 无效链接', 'err'); return; }
if (/\.mp4(\?|$)/i.test(rawUrl) && !/\.m3u8/i.test(rawUrl)) { fetchBlob(rawUrl, filename, label); return; }
setStatus('正在解析视频清晰度...', 'info');
GM_xmlhttpRequest({
method: 'GET', url: rawUrl, headers: getHeaders(), cookie: document.cookie, timeout: 30000,
onload: function(res) {
if (res.status === 200) {
var best = resolveBestM3u8Stream(rawUrl, res.responseText);
fetchBlob(best || rawUrl, filename, label);
} else {
fetchBlob(rawUrl, filename, label);
}
},
onerror: function() { fetchBlob(rawUrl, filename, label); }
});
}
function fetchBlob(url, filename, label, onAfter) {
setStatus('正在下载 ' + label + '...', 'info');
GM_xmlhttpRequest({
method: 'GET', url: url, headers: getHeaders(), cookie: document.cookie,
responseType: 'blob', timeout: 600000,
onprogress: function(e) {
if (e.lengthComputable) {
setProgress(e.loaded / e.total);
setStatus('⬇ ' + (e.loaded/1048576).toFixed(1) + ' / ' + (e.total/1048576).toFixed(1) + ' MB', 'info');
}
},
onload: function(res) {
if (res.status === 200) {
setStatus('正在保存...', 'info');
saveFile(res.response, filename).then(function(r) {
var msg = r.ok ? (r.method === 'fs' ? '已存入目录: ' + (r.finalName || filename) : '已触发下载: ' + (r.finalName || filename)) : r.error;
finishDL(r.ok, msg);
if (r.ok) notify('下载完成', (r.finalName || filename));
if (onAfter) onAfter(r.ok);
});
} else { finishDL(false, 'HTTP ' + res.status); if (onAfter) onAfter(false); }
},
onerror: function(e) { finishDL(false, e.error || '网络错误'); if (onAfter) onAfter(false); }
});
}
function finishDL(ok, msg) {
isDownloading = false; setProgress(0); setBtnsEnabled(true);
setStatus((ok ? '✅ ' : '❌ ') + msg, ok ? 'ok' : 'err');
}
/** 检查目录中是否已存在同名文件,返回最终可用文件名 */
async function resolveDuplicateName(targetDir, finalName) {
var strategy = SETTINGS.duplicateStrategy;
// 先看是否存在
var exists = false;
try { await targetDir.getFileHandle(finalName); exists = true; } catch(e) { exists = false; }
if (!exists) return { name: finalName, proceed: true };
if (strategy === 'overwrite') return { name: finalName, proceed: true };
if (strategy === 'ask') {
var keep = window.confirm('文件已存在:\n' + finalName + '\n\n确定 = 覆盖 取消 = 自动加序号');
if (keep) return { name: finalName, proceed: true };
// 取消则回退到自动重命名
}
// 自动加序号 (1), (2)...
var dot = finalName.lastIndexOf('.');
var base = dot > 0 ? finalName.substring(0, dot) : finalName;
var ext = dot > 0 ? finalName.substring(dot) : '';
for (var i = 1; i < 200; i++) {
var candidate = base + ' (' + i + ')' + ext;
try { await targetDir.getFileHandle(candidate); } catch(e) { return { name: candidate, proceed: true }; }
}
return { name: finalName, proceed: true };
}
async function saveFile(blob, filename) {
if (!dirHandle) return saveViaGM(blob, filename);
try {
var parts = filename.split('/'), finalName = parts.pop();
var cur = dirHandle;
for (var i = 0; i < parts.length; i++) {
if (parts[i]) cur = await cur.getDirectoryHandle(parts[i], { create: true });
}
// 同名文件处理
var resolved = await resolveDuplicateName(cur, finalName);
if (!resolved.proceed) return { ok: false, error: '用户取消' };
finalName = resolved.name;
var fileHandle = await cur.getFileHandle(finalName, { create: true });
var writable = await fileHandle.createWritable();
await writable.write(blob); await writable.close();
return { ok: true, method: 'fs', finalName: finalName };
} catch(e) {
console.warn('[SVD] FS写入失败,回退GM_download:', e);
return saveViaGM(blob, filename);
}
}
function saveViaGM(blob, filename) {
return new Promise(function(res) {
var bu = URL.createObjectURL(blob);
GM_download({
url: bu, name: filename,
onload: function() { URL.revokeObjectURL(bu); res({ ok: true, method: 'gm', finalName: filename }); },
onerror: function(e) { URL.revokeObjectURL(bu); res({ ok: false, error: e.error || '失败' }); }
});
});
}
/* ══════════════════════════════════════════════════════════
UI — THEMING (深色模式 + CSS 变量)
══════════════════════════════════════════════════════════ */
/** 亮色主题色板 */
var THEMES = {
light: {
bg: '#ffffff', bg2: '#f7f8fa', bg3: '#eef0f3',
border: '#e4e6ea', border2: '#ced0d4',
text: '#1c1e21', text2: '#65676b', text3: '#a8aaad',
accent: '#fe2c55', accentBg: 'rgba(254,44,85,0.08)',
purple: '#6366f1', green: '#16a34a', red: '#dc2626', blue: '#2563eb',
shadow: '0 8px 32px rgba(0,0,0,0.12), 0 2px 8px rgba(0,0,0,0.06)'
},
dark: {
bg: '#1c1d20', bg2: '#26272b', bg3: '#33343a',
border: '#3a3b40', border2: '#4a4b52',
text: '#e8eaed', text2: '#a8aab0', text3: '#6e7077',
accent: '#ff4b6e', accentBg: 'rgba(255,75,110,0.14)',
purple: '#7e87ff', green: '#34d399', red: '#f87171', blue: '#60a5fa',
shadow: '0 8px 32px rgba(0,0,0,0.5), 0 2px 8px rgba(0,0,0,0.3)'
}
};
function currentThemeName() {
if (SETTINGS.themeMode === 'light') return 'light';
if (SETTINGS.themeMode === 'dark') return 'dark';
// auto
try { return window.matchMedia('(prefers-color-scheme: dark)').matches ? 'dark' : 'light'; }
catch(e) { return 'light'; }
}
function applyTheme() {
var name = currentThemeName();
var t = THEMES[name];
var root = document.documentElement;
Object.keys(t).forEach(function(k) {
root.style.setProperty('--svd-' + k, t[k]);
});
// 给 window 加 class 以便部分元素针对深色覆写
var win = q('svd-win');
if (win) {
win.classList.toggle('svd-dark', name === 'dark');
win.classList.toggle('svd-light', name === 'light');
}
}
// 监听系统主题变化
try {
if (window.matchMedia) {
var mql = window.matchMedia('(prefers-color-scheme: dark)');
if (mql.addEventListener) mql.addEventListener('change', function() { if (SETTINGS.themeMode === 'auto') applyTheme(); });
else if (mql.addListener) mql.addListener(function() { if (SETTINGS.themeMode === 'auto') applyTheme(); });
}
} catch(e) {}
/* ══════════════════════════════════════════════════════════
UI — STYLES
══════════════════════════════════════════════════════════ */
function injectStyles() {
if (q('svd-styles')) return;
var s = document.createElement('style');
s.id = 'svd-styles';
s.textContent = [
// CSS 变量初始默认值(applyTheme 会覆盖)
':root{--svd-bg:#ffffff;--svd-bg2:#f7f8fa;--svd-bg3:#eef0f3;--svd-border:#e4e6ea;--svd-border2:#ced0d4;--svd-text:#1c1e21;--svd-text2:#65676b;--svd-text3:#a8aaad;--svd-accent:#fe2c55;--svd-accentBg:rgba(254,44,85,0.08);--svd-purple:#6366f1;--svd-green:#16a34a;--svd-red:#dc2626;--svd-blue:#2563eb;--svd-shadow:0 8px 32px rgba(0,0,0,0.12),0 2px 8px rgba(0,0,0,0.06)}',
// 窗口容器
'#svd-win{position:fixed;top:58px;right:18px;width:420px;height:640px;max-height:92vh;display:flex;flex-direction:column;resize:both;overflow:hidden;min-width:340px;max-width:720px;min-height:380px;background:var(--svd-bg);border:1px solid var(--svd-border);border-radius:14px;box-shadow:var(--svd-shadow);z-index:2147483647;font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei",sans-serif;font-size:13px;color:var(--svd-text)}',
// 顶栏
'#svd-hdr{flex-shrink:0;display:flex;align-items:center;gap:10px;padding:10px 14px;background:linear-gradient(180deg,var(--svd-bg) 0%,var(--svd-bg2) 100%);border-bottom:1px solid var(--svd-border);border-radius:14px 14px 0 0;cursor:move;user-select:none}',
'.svd-badge{width:26px;height:26px;border-radius:8px;background:linear-gradient(135deg,var(--svd-accent) 0%,#ff6b8b 100%);display:flex;align-items:center;justify-content:center;flex-shrink:0;box-shadow:0 2px 8px rgba(254,44,85,.35)}',
'.svd-badge svg{width:14px;height:14px;fill:#fff}',
'.svd-title{flex:1;font-weight:700;font-size:13.5px;color:var(--svd-text);letter-spacing:-.2px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.svd-title em{color:var(--svd-accent);font-style:normal;font-weight:800}',
'.svd-wbtns{display:flex;gap:5px;align-items:center}',
'.svd-wbtn{width:22px;height:22px;border-radius:50%;border:none;cursor:pointer;font-size:11px;font-weight:700;line-height:1;display:flex;align-items:center;justify-content:center;transition:transform .15s,filter .15s}.svd-wbtn:hover{transform:scale(1.12);filter:brightness(1.05)}',
'.svd-wbtn-x{background:#fd5f57;color:#5a0000}',
// Tab 导航
'#svd-tabs{flex-shrink:0;display:flex;padding:0 8px;background:var(--svd-bg);border-bottom:1px solid var(--svd-border);gap:2px;position:relative}',
'.svd-tab{flex:1;padding:10px 4px;background:none;border:none;cursor:pointer;font-size:12px;font-weight:600;color:var(--svd-text3);display:flex;align-items:center;justify-content:center;gap:5px;position:relative;transition:color .18s;border-bottom:2px solid transparent;margin-bottom:-1px;white-space:nowrap}',
'.svd-tab:hover{color:var(--svd-text2)}',
'.svd-tab.active{color:var(--svd-accent);border-bottom-color:var(--svd-accent)}',
'.svd-tab-ico{font-size:13px;line-height:1}',
'.svd-tab-badge{position:absolute;top:6px;right:4px;min-width:14px;height:14px;padding:0 4px;border-radius:7px;background:var(--svd-accent);color:#fff;font-size:9px;font-weight:700;display:none;align-items:center;justify-content:center;line-height:1}',
'.svd-tab-badge.show{display:flex}',
// Tab 内容区
'#svd-body{flex:1;overflow-y:auto;overflow-x:hidden;background:var(--svd-bg);scrollbar-width:thin;scrollbar-color:var(--svd-border2) transparent}',
'#svd-body::-webkit-scrollbar{width:5px}#svd-body::-webkit-scrollbar-thumb{background:var(--svd-border2);border-radius:3px}#svd-body::-webkit-scrollbar-thumb:hover{background:var(--svd-text3)}',
'.svd-pane{display:none;animation:svd-fadeIn .2s ease-out}',
'.svd-pane.active{display:block}',
'@keyframes svd-fadeIn{from{opacity:0;transform:translateY(4px)}to{opacity:1;transform:translateY(0)}}',
// section
'.svd-sec{padding:12px 14px;background:var(--svd-bg)}',
'.svd-sec+.svd-sec{border-top:1px solid var(--svd-bg3)}',
'.svd-sec-lbl{font-size:10px;font-weight:700;letter-spacing:1.2px;text-transform:uppercase;color:var(--svd-text3);margin-bottom:8px;display:flex;align-items:center;gap:5px}',
// 保存路径
'#svd-path-row{display:flex;align-items:center;gap:8px}',
'#svd-path-txt{flex:1;padding:8px 11px;background:var(--svd-bg2);border:1px solid var(--svd-border);border-radius:8px;color:var(--svd-text3);font-size:11.5px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;min-width:0}',
'#svd-path-txt.set{color:var(--svd-green);border-color:rgba(22,163,74,.3);background:rgba(22,163,74,.06)}',
'#svd-path-btn{padding:8px 13px;background:linear-gradient(135deg,var(--svd-purple) 0%,#818cf8 100%);border:none;border-radius:8px;color:#fff;font-size:11.5px;font-weight:600;cursor:pointer;white-space:nowrap;box-shadow:0 2px 8px rgba(99,102,241,.3);transition:transform .15s,box-shadow .15s;flex-shrink:0}',
'#svd-path-btn:hover{transform:translateY(-1px);box-shadow:0 4px 12px rgba(99,102,241,.4)}',
'#svd-filename-input{width:100%;padding:9px 11px;border:1px solid var(--svd-border);border-radius:8px;background:var(--svd-bg2);color:var(--svd-text);font-size:12px;box-sizing:border-box;transition:border-color .15s,background .15s;outline:none}',
'#svd-filename-input:focus{border-color:var(--svd-accent);background:var(--svd-bg)}',
'#svd-filename-input::placeholder{color:var(--svd-text3)}',
// 设置项行
'.svd-set-row{display:flex;align-items:center;justify-content:space-between;gap:10px;padding:6px 0;flex-wrap:wrap}',
'.svd-set-row-lbl{font-size:12px;color:var(--svd-text2);font-weight:500;flex:1;min-width:120px}',
'.svd-set-row-lbl small{display:block;margin-top:2px;color:var(--svd-text3);font-size:10.5px;font-weight:400}',
'#svd-opacity-slider{-webkit-appearance:none;appearance:none;flex:1;max-width:160px;height:4px;background:var(--svd-border2);border-radius:10px;outline:none;cursor:pointer}',
'#svd-opacity-slider::-webkit-slider-thumb{-webkit-appearance:none;appearance:none;width:14px;height:14px;background:var(--svd-accent);border-radius:50%;cursor:pointer;box-shadow:0 1px 4px rgba(0,0,0,.2);border:2px solid #fff}',
'#svd-opacity-slider::-moz-range-thumb{width:14px;height:14px;background:var(--svd-accent);border-radius:50%;cursor:pointer;box-shadow:0 1px 4px rgba(0,0,0,.2);border:2px solid #fff}',
// 通用 select / 单选段
'.svd-select{padding:5px 8px;border:1px solid var(--svd-border);border-radius:6px;background:var(--svd-bg);color:var(--svd-text);font-size:11.5px;cursor:pointer;outline:none;min-width:90px}',
'.svd-select:focus{border-color:var(--svd-accent)}',
'.svd-seg{display:inline-flex;border:1px solid var(--svd-border);border-radius:7px;overflow:hidden;background:var(--svd-bg2)}',
'.svd-seg button{padding:5px 10px;border:none;background:transparent;color:var(--svd-text2);font-size:11px;cursor:pointer;font-weight:500;transition:background .15s,color .15s;border-right:1px solid var(--svd-border)}',
'.svd-seg button:last-child{border-right:none}',
'.svd-seg button:hover{background:var(--svd-bg3)}',
'.svd-seg button.active{background:var(--svd-accent);color:#fff;font-weight:600}',
// 开关 switch
'.svd-switch{position:relative;width:36px;height:20px;background:var(--svd-border2);border-radius:20px;cursor:pointer;transition:background .2s;flex-shrink:0}',
'.svd-switch::after{content:"";position:absolute;top:2px;left:2px;width:16px;height:16px;background:#fff;border-radius:50%;transition:transform .2s;box-shadow:0 1px 3px rgba(0,0,0,.2)}',
'.svd-switch.on{background:var(--svd-accent)}',
'.svd-switch.on::after{transform:translateX(16px)}',
// 危险按钮
'.svd-danger-btn{padding:7px 14px;background:var(--svd-bg2);border:1px solid var(--svd-red);color:var(--svd-red);border-radius:7px;font-size:11.5px;font-weight:600;cursor:pointer;transition:background .15s}',
'.svd-danger-btn:hover{background:rgba(220,38,38,.08)}',
// 模板示例
'.svd-template-hint{margin-top:6px;font-size:10.5px;color:var(--svd-text3);line-height:1.6}',
'.svd-template-hint code{padding:1px 4px;background:var(--svd-bg2);border:1px solid var(--svd-border);border-radius:3px;font-size:10px;color:var(--svd-accent);cursor:pointer}',
'.svd-template-hint code:hover{background:var(--svd-bg3)}',
// 抖音/XHS:封面状态条
'#svd-capbar{display:flex;align-items:center;gap:8px;padding:9px 14px;background:var(--svd-bg2);border-bottom:1px solid var(--svd-bg3);font-size:11px}',
'.svd-dot{width:7px;height:7px;border-radius:50%;background:var(--svd-text3);flex-shrink:0;transition:background .3s}',
'.svd-dot.on{background:var(--svd-green);box-shadow:0 0 6px rgba(22,163,74,.6);animation:svd-pulse 1.5s infinite}',
'@keyframes svd-pulse{0%,100%{opacity:1}50%{opacity:.45}}',
'#svd-captxt{flex:1;color:var(--svd-text3);overflow:hidden;text-overflow:ellipsis;white-space:nowrap;min-width:0}#svd-captxt.on{color:var(--svd-green);font-weight:500}',
'#svd-refresh{flex-shrink:0;padding:5px 11px;background:var(--svd-bg);border:1px solid var(--svd-border);border-radius:7px;color:var(--svd-text2);font-size:11px;font-weight:600;cursor:pointer;display:inline-flex;align-items:center;gap:4px;transition:background .15s,border-color .15s,color .15s,transform .15s}',
'#svd-refresh:hover{background:var(--svd-accentBg);border-color:rgba(254,44,85,.3);color:var(--svd-accent);transform:translateY(-1px)}',
// 顶部配置区
'.svd-top-config{padding:12px 14px;background:var(--svd-bg);border-bottom:1px solid var(--svd-bg3);display:flex;flex-direction:column;gap:8px}',
// 信息卡
'.svd-info-card{margin:8px 14px 0;padding:10px 11px;background:linear-gradient(135deg,var(--svd-bg2) 0%,var(--svd-bg) 100%);border:1px solid var(--svd-bg3);border-radius:10px;display:flex;flex-direction:column;gap:7px}',
'.svd-info-meta{display:flex;align-items:center;gap:7px;font-size:11px;color:var(--svd-text2);flex-wrap:wrap}',
'.svd-meta-item{display:inline-flex;align-items:center;gap:3px}',
'.svd-meta-ico{font-size:10px;opacity:.7}',
'.svd-meta-sep{color:var(--svd-border2);font-weight:700}',
'.svd-info-desc-block{padding-top:7px;border-top:1px dashed rgba(128,128,128,.18);cursor:pointer;user-select:none}',
'.svd-info-desc-block:hover .svd-desc-chevron{color:var(--svd-accent)}',
'.svd-desc-lbl{display:flex;align-items:center;justify-content:space-between;font-size:9.5px;font-weight:700;letter-spacing:.6px;color:var(--svd-text3);margin-bottom:4px;text-transform:uppercase}',
'.svd-desc-chevron{font-size:9px;color:var(--svd-text3);transition:transform .2s,color .15s;font-weight:400}',
'.svd-info-desc-block.expanded .svd-desc-chevron{transform:rotate(180deg);color:var(--svd-accent)}',
// 媒体行
'.svd-media-row{display:grid;grid-template-columns:1fr 1fr;gap:10px;padding:10px 14px 0;min-width:0}',
'.svd-media-col{display:flex;flex-direction:column;gap:6px;min-width:0;overflow:hidden}',
'.svd-media-lbl{font-size:10.5px;font-weight:700;letter-spacing:.8px;color:var(--svd-text3);text-transform:uppercase;display:flex;align-items:center;gap:4px}',
'.svd-media-box{position:relative;background:var(--svd-bg2);border-radius:10px;overflow:hidden;min-height:100px;display:flex;align-items:center;justify-content:center}',
// 链接行
'.svd-link-row{display:flex;align-items:flex-start;gap:6px;padding:10px 14px 0;font-size:10.5px}',
'.svd-link-ico{flex-shrink:0;padding-top:5px;font-size:11px;opacity:.7}',
// 作者
'.svd-ac{display:flex;align-items:center;gap:8px}',
'.svd-av{width:30px;height:30px;border-radius:50%;object-fit:cover;flex-shrink:0;border:1.5px solid var(--svd-accentBg)}',
'.svd-avph{width:30px;height:30px;border-radius:50%;background:var(--svd-bg3);display:flex;align-items:center;justify-content:center;font-size:14px;flex-shrink:0}',
'.svd-aname{font-size:12px;font-weight:600;color:var(--svd-text);line-height:1.3}.svd-aid{font-size:10.5px;color:var(--svd-text3);margin-top:1px}',
// 文案
'.svd-desc{font-size:11.5px;color:var(--svd-text);line-height:1.5;word-break:break-word;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;transition:max-height .2s ease}',
'.svd-info-desc-block.expanded .svd-desc{white-space:normal;overflow-y:auto;max-height:88px;scrollbar-width:thin}',
'.svd-info-desc-block.expanded .svd-desc::-webkit-scrollbar{width:3px}.svd-info-desc-block.expanded .svd-desc::-webkit-scrollbar-thumb{background:var(--svd-border2);border-radius:3px}',
// 话题
'.svd-tags{display:flex;flex-wrap:wrap;gap:4px}',
'.svd-tag{padding:2px 8px;background:var(--svd-accentBg);border:1px solid rgba(254,44,85,.2);border-radius:100px;color:var(--svd-accent);font-size:11px;font-weight:500}',
// 封面/视频
'.svd-cimg{width:100%;max-height:140px;object-fit:cover;display:block;cursor:pointer;transition:opacity .2s}.svd-cimg:hover{opacity:.85}',
'.svd-cph{width:100%;padding:24px 8px;color:var(--svd-text3);font-size:11px;text-align:center}',
'.svd-vid{width:100%;max-height:200px;background:#000;display:block;object-fit:contain}',
'.svd-imgrid{display:grid;grid-template-columns:repeat(2,1fr);gap:4px;padding:6px}',
'.svd-ig-item{position:relative;border-radius:6px;overflow:hidden;cursor:pointer;background:var(--svd-bg2)}',
'.svd-igthumb{width:100%;aspect-ratio:1;object-fit:cover;display:block;transition:transform .2s}.svd-ig-item:hover .svd-igthumb{transform:scale(1.04)}',
'.svd-ig-dl{position:absolute;bottom:4px;right:4px;background:rgba(255,255,255,.92);backdrop-filter:blur(4px);border:none;border-radius:5px;width:22px;height:22px;display:flex;align-items:center;justify-content:center;cursor:pointer;font-size:11px;opacity:0;transform:translateY(4px);transition:opacity .18s,transform .18s;box-shadow:0 1px 4px rgba(0,0,0,.15)}',
'.svd-ig-item:hover .svd-ig-dl{opacity:1;transform:translateY(0)}',
'.svd-ig-idx{position:absolute;top:4px;left:5px;background:rgba(0,0,0,.5);color:#fff;font-size:9px;font-weight:600;padding:1px 4px;border-radius:3px}',
'.svd-imgdl-all{margin:6px;width:calc(100% - 12px);padding:7px;background:var(--svd-bg);border:1px solid var(--svd-border);border-radius:7px;color:var(--svd-text2);font-size:11px;font-weight:600;cursor:pointer;display:flex;align-items:center;justify-content:center;gap:5px;transition:background .15s}',
'.svd-imgdl-all:hover{background:var(--svd-bg3)}.svd-imgdl-all:disabled{opacity:.4;cursor:not-allowed}',
// 链接
'.svd-url{flex:1;font-size:10.5px;color:var(--svd-text3);word-break:break-all;background:var(--svd-bg2);border-radius:6px;padding:6px 9px;max-height:36px;overflow:hidden;min-width:0}',
'.svd-url.found{color:var(--svd-green);background:rgba(22,163,74,.07)}',
'.svd-na{color:var(--svd-text3);font-style:italic;font-size:11.5px}',
// 主下载按钮
'#svd-actions{display:flex;gap:8px;padding:10px 14px 14px;background:var(--svd-bg)}',
'.svd-abtn{flex:1;padding:11px 8px;border:none;border-radius:10px;font-size:12.5px;font-weight:700;cursor:pointer;display:flex;align-items:center;justify-content:center;gap:5px;transition:transform .15s,box-shadow .15s,opacity .15s,filter .15s}',
'.svd-abtn:hover{transform:translateY(-1px);filter:brightness(1.05)}.svd-abtn:disabled{opacity:.38;cursor:not-allowed;transform:none;filter:none}',
'.svd-dlv{background:linear-gradient(135deg,var(--svd-accent) 0%,#ff5878 100%);color:#fff;box-shadow:0 2px 8px rgba(254,44,85,.3)}.svd-dlv:hover:not(:disabled){box-shadow:0 4px 14px rgba(254,44,85,.4)}',
'.svd-dlc{background:var(--svd-bg2);color:var(--svd-text2);border:1.5px solid var(--svd-border)}.svd-dlc:hover:not(:disabled){background:var(--svd-bg3);border-color:var(--svd-border2)}',
// 底部状态栏
'#svd-statarea{flex-shrink:0;padding:9px 14px 10px;background:var(--svd-bg2);border-top:1px solid var(--svd-border)}',
'#svd-prog{height:3px;background:var(--svd-bg3);border-radius:2px;margin-bottom:6px;overflow:hidden;display:none}',
'#svd-progfill{height:100%;width:0%;background:linear-gradient(90deg,var(--svd-accent),#ff6b8b);border-radius:2px;transition:width .2s}',
'#svd-stattxt{font-size:11px;color:var(--svd-text3);text-align:center;min-height:14px;line-height:1.4}',
'#svd-stattxt.ok{color:var(--svd-green)}#svd-stattxt.err{color:var(--svd-red)}#svd-stattxt.info{color:var(--svd-blue)}',
// 触发球
'#svd-trig{position:fixed;bottom:108px;right:18px;width:46px;height:46px;border-radius:50%;background:linear-gradient(135deg,var(--svd-accent) 0%,#ff6b8b 100%);border:none;cursor:pointer;z-index:2147483646;display:flex;align-items:center;justify-content:center;box-shadow:0 4px 16px rgba(254,44,85,.4);transition:transform .2s}',
'#svd-trig:hover{transform:scale(1.1)}#svd-trig svg{width:22px;height:22px;fill:#fff}',
// 关于
'#svd-author-bar{padding:14px;display:flex;align-items:center;justify-content:space-between;font-size:11.5px;border-bottom:1px solid var(--svd-bg3)}',
'.svd-author{color:var(--svd-text2)}.svd-author a{color:var(--svd-accent);text-decoration:none;font-weight:600}',
'.svd-donate{color:#fff;cursor:pointer;font-weight:600;background:linear-gradient(135deg,var(--svd-accent) 0%,#ff6b8b 100%);padding:5px 12px;border-radius:14px;transition:transform .15s;box-shadow:0 2px 6px rgba(254,44,85,.3)}',
'.svd-donate:hover{transform:translateY(-1px)}',
'.svd-about-feature{padding:6px 14px 14px;font-size:11.5px;color:var(--svd-text2);line-height:1.7}',
'.svd-about-feature strong{color:var(--svd-text);font-weight:600;display:block;margin:8px 0 4px;font-size:12px}',
'.svd-about-feature strong:first-child{margin-top:0}',
'.svd-kbd{display:inline-block;padding:1px 6px;background:var(--svd-bg2);border:1px solid var(--svd-border);border-bottom-width:2px;border-radius:4px;font-family:monospace;font-size:10.5px;color:var(--svd-text);margin:0 2px}',
'#svd-donate-modal{position:fixed;top:0;left:0;width:100%;height:100%;background:rgba(0,0,0,.5);z-index:2147483648;display:none;align-items:center;justify-content:center}',
'#svd-donate-content{background:var(--svd-bg);color:var(--svd-text);padding:24px 30px;border-radius:20px;text-align:center;max-width:360px;box-shadow:0 10px 40px rgba(0,0,0,.2)}',
'#svd-donate-content img{width:280px;height:280px;margin:15px 0;border-radius:12px}',
'#svd-donate-close{margin-top:10px;padding:6px 20px;background:var(--svd-accent);color:#fff;border:none;border-radius:20px;cursor:pointer}',
// 嗅探
'#svd-sniff-section{padding:12px 14px;display:block}',
'#svd-sniff-section.visible{display:block}',
'#svd-sniff-toolbar{display:flex;gap:5px;margin-bottom:10px}',
'#svd-sniff-toolbar button{flex:1;padding:7px 4px;border:none;border-radius:7px;cursor:pointer;font-size:10.5px;font-weight:700;color:#fff;background:#6b7280;transition:opacity .15s,transform .15s}',
'#svd-sniff-toolbar button:hover{opacity:.88;transform:translateY(-1px)}',
'#svd-sniff-clear-btn{background:#e74c3c !important}',
'#svd-sniff-empty{text-align:center;padding:30px 16px;color:var(--svd-text3);font-size:12px;line-height:1.7}',
'#svd-sniff-empty .svd-empty-ico{font-size:32px;margin-bottom:8px;display:block;opacity:.5}',
'#svd-m3u8-list{list-style:none;padding:0;margin:0;display:grid;grid-template-columns:1fr;gap:8px;align-items:start}',
'#svd-m3u8-list.svd-cols-2{grid-template-columns:repeat(2,1fr)}',
'#svd-m3u8-list.svd-cols-3{grid-template-columns:repeat(3,1fr)}',
'#svd-m3u8-list.svd-cols-4{grid-template-columns:repeat(4,1fr)}',
'#svd-m3u8-list.svd-cols-3 .svd-sniff-urlsnip,#svd-m3u8-list.svd-cols-4 .svd-sniff-urlsnip{display:none}',
'#svd-m3u8-list.svd-cols-3 .svd-sniff-header,#svd-m3u8-list.svd-cols-4 .svd-sniff-header{padding:5px 6px;gap:3px}',
'#svd-m3u8-list.svd-cols-3 .svd-sniff-footer,#svd-m3u8-list.svd-cols-4 .svd-sniff-footer{padding:4px 5px;gap:3px}',
'#svd-m3u8-list.svd-cols-3 .svd-sniff-tag,#svd-m3u8-list.svd-cols-4 .svd-sniff-tag{display:none}',
'#svd-m3u8-list.svd-cols-4 .svd-sniff-chevron{display:none}',
'#svd-m3u8-list.svd-cols-2 .svd-sniff-actions button{font-size:11px;padding:5px 8px}',
'#svd-m3u8-list.svd-cols-3 .svd-sniff-actions button{font-size:10px;padding:4px 6px}',
'#svd-m3u8-list.svd-cols-4 .svd-sniff-actions button{font-size:9px;padding:3px 4px}',
'.svd-m3u8-item{background:var(--svd-bg);border:1px solid var(--svd-border);border-radius:10px;overflow:hidden;box-shadow:0 2px 8px rgba(0,0,0,.07)}',
'.svd-sniff-header{display:flex;align-items:center;gap:6px;padding:8px 10px;background:var(--svd-bg2);cursor:pointer;user-select:none;border-bottom:1px solid var(--svd-border)}',
'.svd-sniff-header:hover{background:var(--svd-bg3)}',
'.svd-sniff-tag{display:inline-flex;align-items:center;padding:2px 6px;border-radius:20px;font-size:10px;font-weight:700;white-space:nowrap;flex-shrink:0}',
'.svd-tag-bili{background:rgba(251,114,153,.12);color:#fb7299;border:1px solid rgba(251,114,153,.3)}',
'.svd-tag-res{background:rgba(99,102,241,.10);color:var(--svd-purple);border:1px solid rgba(99,102,241,.25)}',
'.svd-sniff-title{flex:1;font-size:11px;font-weight:600;color:var(--svd-text);overflow:hidden;white-space:nowrap;text-overflow:ellipsis;min-width:0}',
'.svd-sniff-chevron{font-size:10px;color:var(--svd-text3);flex-shrink:0;transition:transform .2s;line-height:1}',
'.svd-m3u8-item.collapsed .svd-sniff-chevron{transform:rotate(-90deg)}',
'.svd-m3u8-item.collapsed .svd-sniff-body{display:none}',
'.svd-sniff-video{width:100%;height:auto;display:block;background:#111;object-fit:contain}',
'.svd-sniff-footer{display:flex;align-items:center;gap:6px;padding:7px 10px}',
'.svd-sniff-checkbox{flex-shrink:0;width:14px;height:14px;cursor:pointer;accent-color:var(--svd-accent)}',
'.svd-sniff-urlsnip{flex:1;font-size:10.5px;color:var(--svd-text3);overflow:hidden;text-overflow:ellipsis;white-space:nowrap;min-width:0}',
'.svd-sniff-actions{display:flex;gap:4px;flex-shrink:0}',
'.svd-sniff-actions button{padding:5px 10px;font-size:11px;font-weight:600;border:none;border-radius:6px;cursor:pointer;white-space:nowrap;transition:opacity .15s;display:flex;align-items:center;gap:3px}',
'.svd-sniff-actions button:hover{opacity:.82}',
'.svd-sniff-copy{background:#3498db;color:#fff}.svd-sniff-dl{background:#27ae60;color:#fff}',
].join('');
document.head.appendChild(s);
}
/* ══════════════════════════════════════════════════════════
UI — WINDOW BUILD
══════════════════════════════════════════════════════════ */
function buildWindow() {
if (q('svd-win')) return;
var w = document.createElement('div');
w.id = 'svd-win';
w.style.display = 'none';
var isDouyinOrXhs = isDyOrXhs();
var platformTitle = isDouyin() ? '短视频下载 Pro'
: (isXiaohongshu() ? '小红书下载 Pro' : '视频嗅探 Pro');
var topConfigHtml = [
'',
'
',
'
未选择目录,将使用浏览器默认下载
',
'
',
'
',
'
',
'
',
topConfigHtml,
'
',
'
',
'
等待封面加载...',
'
',
'
',
'
',
'
点击「刷新」读取视频信息
',
'
',
' 📱—',
' ·',
' 🕐—',
'
',
'
',
'
📝 发布文案▾ 展开
',
'
—
',
'
',
'
',
'
',
'
',
'
',
'
',
' ',
' ',
'
',
'
',
topConfigHtml,
'
',
'
',
' ',
' ',
' ',
' ',
(isBili() ? ' ' : ''),
'
',
'
',
'
📡暂未捕获到视频链接
播放页面视频后将自动嗅探
',
'
',
'
',
// —— 外观 ——
'
',
'
🎨 外观
',
'
',
'
主题模式跟随系统会自动响应深色切换',
'
',
' ',
' ',
' ',
'
',
'
',
'
',
' 窗口透明度',
' ',
'
',
'
',
'
记住触发球位置关闭后下次仍保持在你拖到的地方',
'
',
'
',
'
',
'
记住最后打开的 Tab',
'
',
'
',
'
',
// —— 下载 ——
'
',
'
📥 下载
',
'
',
'
下载视频时同时保存封面',
'
',
'
',
'
',
'
',
' 同名文件处理',
' ',
'
',
'
',
'
文件名模板主页输入框留空时启用',
'
',
'
',
' 可用占位符(点击插入):',
' {author}',
' {desc}',
' {platform}',
' {date}',
' {time}',
' {datetime}',
'
',
'
',
'
',
// —— 嗅探 ——
'
',
'
📡 嗅探
',
'
',
' 最低分辨率过滤已知分辨率且低于阈值的链接被忽略',
' ',
'
',
'
',
'
链接类型筛选',
'
',
' ',
' ',
' ',
'
',
'
',
'
',
'
嗅探到首条自动复制本次会话仅触发一次',
'
',
'
',
'
',
'
嗅探卡片显示视频预览关闭可省流量内存',
'
',
'
',
'
',
// —— 重置 ——
'
',
'
🧹 维护
',
'
',
' 清空当前嗅探列表',
' ',
'
',
'
',
' 重置所有设置为默认',
' ',
'
',
'
',
'
',
'
',
'
By 花海🌸 · v3.4.0',
'
❤️ 赞赏支持',
'
',
'
',
' 🎯 支持平台',
' 抖音、小红书网页版无水印下载;全站 M3U8 / MP4 视频嗅探。',
' 📥 主要功能',
' 一键下载无水印视频、封面图;图文笔记多图批量保存;自动提取作者 / 标题 / 发布时间;B站合集批量扫描。',
' ⌨️ 快捷键',
' Alt + D 唤起 / 隐藏小窗',
'
Alt + S 快速下载当前视频',
'
双击触发球 = 快速下载',
' 💡 使用提示',
' 设置中选择本地目录后,文件会直接保存至所选位置;否则走浏览器默认下载。',
'
',
'
',
'
',
'
' + platformTitle + '',
'
',
'
',
' ',
' ',
' ',
'
',
'',
mainPaneHtml,
settingsPaneHtml,
aboutPaneHtml,
'
',
'',
'
',
'
' + (isDouyinOrXhs ? '点击「刷新」读取当前视频信息' : '📡 嗅探面板已开启,播放视频后自动捕获链接') + '
',
'
',
'
赞赏支持
',
'
如果觉得好用,请作者喝杯咖啡☕
',
'
',
'
微信
',
'
',
'
' + esc(info.author) + '
' + (info.authorId ? '@' + esc(info.authorId) + '
' : '');
ac.appendChild(nw); ae.appendChild(ac);
q('svd-f-time').textContent = info.createTime;
q('svd-f-desc').textContent = info.desc || '无文案';
var te = q('svd-f-tags'); te.innerHTML = '';
if (info.topics && info.topics.length) {
var tw = document.createElement('div'); tw.className = 'svd-tags';
info.topics.forEach(function(t) { var sp = document.createElement('span'); sp.className = 'svd-tag'; sp.textContent = t; tw.appendChild(sp); });
te.appendChild(tw);
} else te.innerHTML = '无话题标签';
var ce = q('svd-f-cov'); ce.innerHTML = '';
if (info.coverUrl) {
var ci = new Image(); ci.className = 'svd-cimg'; ci.src = info.coverUrl; ci.title = '点击查看原图';
ci.addEventListener('click', function() { window.open(info.coverUrl, '_blank'); });
ci.onerror = function() { ce.innerHTML = '封面加载失败
'; };
ce.appendChild(ci);
} else ce.innerHTML = '封面加载中...
';
var lbl = q('svd-content-lbl'); if (lbl) lbl.textContent = info.isImagePost ? '图片' : '视频';
var ve = q('svd-f-vid'); ve.innerHTML = '';
if (info.isImagePost) {
if (info.images && info.images.length) buildImageGrid(ve, info);
else ve.innerHTML = '图文笔记(含背景音乐,无独立视频)';
var vbtn = q('svd-btn-v'); if (vbtn) vbtn.disabled = true;
} else {
if (info.videoUrl) {
var vd = document.createElement('video'); vd.className = 'svd-vid'; vd.controls = true; vd.preload = 'metadata';
if (info.coverUrl) vd.poster = info.coverUrl;
vd.src = info.videoUrl; ve.appendChild(vd);
} else ve.innerHTML = '点击下载按钮自动捕获高清链接';
}
var ue = q('svd-f-url');
if (ue) {
if (info.videoUrl) { ue.textContent = info.videoUrl.substring(0, 90) + (info.videoUrl.length > 90 ? '…' : ''); ue.className = 'svd-url found'; }
else { ue.textContent = '点击下载按钮实时捕获'; ue.className = 'svd-url'; }
}
q('svd-btn-v').disabled = !!(info.isImagePost);
q('svd-btn-c').disabled = !info.coverUrl;
setStatus('✅ 视频信息加载完成', 'ok');
}
function buildImageGrid(container, info) {
var grid = document.createElement('div'); grid.className = 'svd-imgrid';
info.images.forEach(function(item, idx) {
var url = typeof item === 'string' ? item : item.url;
var liveUrl = (typeof item === 'object' && item.liveUrl) ? item.liveUrl : null;
var itemDiv = document.createElement('div'); itemDiv.className = 'svd-ig-item';
var numLabel = document.createElement('span'); numLabel.className = 'svd-ig-idx'; numLabel.textContent = idx + 1;
var img = new Image(); img.className = 'svd-igthumb'; img.src = url; img.loading = 'lazy';
img.onerror = function() { itemDiv.style.background = '#f0f0f0'; img.style.opacity = '.3'; };
var dlBtn = document.createElement('button'); dlBtn.className = 'svd-ig-dl'; dlBtn.title = '下载第' + (idx+1) + '张'; dlBtn.textContent = '⬇';
(function(u, live, i) {
dlBtn.addEventListener('click', function(e) {
e.stopPropagation();
if (live) doDownload(live, getFilename(info, 'image', i).replace(/\.(jpg|jpeg|png|webp)$/i, '.mp4'), '实况视频');
else doDownloadImage(u, getFilename(info, 'image', i));
});
})(url, liveUrl, idx);
itemDiv.appendChild(img); itemDiv.appendChild(numLabel); itemDiv.appendChild(dlBtn);
grid.appendChild(itemDiv);
});
container.appendChild(grid);
var allBtn = document.createElement('button'); allBtn.className = 'svd-imgdl-all';
allBtn.innerHTML = '⬇ 全部下载(' + info.images.length + '张)';
allBtn.addEventListener('click', function() {
if (imageDownloading) { setStatus('图片下载中,请稍候...', 'info'); return; }
imageDownloading = true; allBtn.disabled = true;
var total = info.images.length, done = 0;
function scheduleNext(idx) {
if (idx >= total) return;
var item = info.images[idx];
var url = typeof item === 'string' ? item : item.url;
var liveUrl = (typeof item === 'object' && item.liveUrl) ? item.liveUrl : null;
setTimeout(function() {
var finish = function() { done++; if (done >= total) { imageDownloading = false; allBtn.disabled = false; notify('批量完成', '共保存 ' + total + ' 个文件'); } };
if (liveUrl) { doDownload(liveUrl, getFilename(info, 'image', idx).replace(/\.(jpg|jpeg|png|webp)$/i, '.mp4'), '实况视频'); finish(); }
else doDownloadImage(url, getFilename(info, 'image', idx), finish);
scheduleNext(idx + 1);
}, idx === 0 ? 0 : 300);
}
scheduleNext(0);
});
container.appendChild(allBtn);
}
/* ══════════════════════════════════════════════════════════
REFRESH & BOOTSTRAP
══════════════════════════════════════════════════════════ */
function doRefresh() {
setStatus('正在读取视频信息...', 'info');
setTimeout(function() {
if (!isDyOrXhs()) { updateSniffStatus(); return; }
var info = extractVideoInfo();
if (info) renderInfo(info);
else setStatus('❌ 未能解析视频信息,请等视频播放后刷新', 'err');
}, 350);
}
/* ══════════════════════════════════════════════════════════
GLOBAL HOTKEYS + 菜单
══════════════════════════════════════════════════════════ */
function setupHotkeys() {
document.addEventListener('keydown', function(e) {
// Alt+D = 切换小窗显示
if (e.altKey && !e.ctrlKey && !e.metaKey && (e.key === 'd' || e.key === 'D')) {
e.preventDefault();
toggleWindow();
}
// Alt+S = 快速下载
if (e.altKey && !e.ctrlKey && !e.metaKey && (e.key === 's' || e.key === 'S')) {
e.preventDefault();
quickDownloadCurrent();
}
});
}
function toggleWindow() {
var w = q('svd-win'), t = q('svd-trig');
if (!w) return;
if (w.style.display === 'none' || w.style.display === '') {
w.style.display = 'flex';
if (t) t.style.display = 'none';
} else {
w.style.display = 'none';
if (t) t.style.display = 'flex';
}
}
function setupMenuCommands() {
try {
if (typeof GM_registerMenuCommand !== 'function') return;
GM_registerMenuCommand('🪟 显示/隐藏小窗 (Alt+D)', toggleWindow);
GM_registerMenuCommand('⚡ 快速下载当前视频 (Alt+S)', quickDownloadCurrent);
GM_registerMenuCommand('🔄 刷新视频信息', doRefresh);
} catch(e) {}
}
function bootstrap() {
injectStyles();
buildWindow();
buildTrigger();
applyTheme();
setupHotkeys();
setupMenuCommands();
_restoreDirHandle();
if (isDouyin()) {
watchForNewItems();
setTimeout(function() { setupItemObserver(); doRefresh(); }, 1800);
} else {
setTimeout(doRefresh, 1500);
}
}
if (document.readyState === 'loading') document.addEventListener('DOMContentLoaded', function() { setTimeout(bootstrap, 500); });
else setTimeout(bootstrap, 500);
setInterval(function() {
if (!q('svd-win')) buildWindow();
if (!q('svd-trig')) buildTrigger();
if (!q('svd-styles')) injectStyles();
tickCapture();
if (isSniffSectionVisible && !isDyOrXhs()) captureVideoElementSrcs();
var cur = location.href;
if (cur !== lastNavUrl) {
lastNavUrl = cur;
capturedCovers = [];
xhsNoteData = null;
imageDownloading = false;
sniffFirstCopied = false;
if (!isDownloading) setTimeout(doRefresh, isDouyin() ? 1800 : 1000);
}
}, 800);
})();