Sniff video (m3u8/mp4), optimized for mobile memory usage.
// ==UserScript== // @name Universal Video Sniffer // @name:zh-CN 通用视频嗅探器 // @namespace http://tampermonkey.net/ // @version 22.3 // @description Sniff video (m3u8/mp4), optimized for mobile memory usage. // @description:zh-CN 专为手机浏览器优化：内存占用减半、支持M3U8自动解密、MP4原生下载模式。支持中英双语界面。 // @author jw23 (Optimized) // @license MIT // @match *://*/* // @connect * // @grant GM_xmlhttpRequest // @grant GM_registerMenuCommand // @grant GM_getValue // @grant GM_setValue // @grant unsafeWindow // @require https://cdn.jsdelivr.net/npm/[email protected]/dist/mux.min.js // @run-at document-start // ==/UserScript== (function() { 'use strict'; // ========================================== // 0. 多语言配置 (Localization) // ========================================== const Lang = navigator.language.startsWith('zh') ? 'zh' : 'en'; const Locales = { zh: { title: '嗅探器', copy: '复制', copied: '已复制', download: '下载', downloading: '下载中...', saving: '保存中...', done: '完成', error: '错误', native_down: '已调原生', menu_set_threads: '⚙️ 设置并发下载数', prompt_threads: '请输入并发下载线程数 (手机建议 2-4，过高会导致闪退):', alert_threads_saved: '设置成功，刷新页面生效。当前线程数: ', confirm_mobile_mp4: '检测到 MP4 单文件。\n是否调用浏览器自带下载器？\n(省流量、不闪退、速度快)', alert_0_size: '下载失败：文件大小为 0B。', alert_mp4_fallback: 'MP4 转码失败，回退到原始 TS', alert_fail_general: '下载失败：数据量过小或内存优化导致无法回退到 TS 格式。', progress_parsing: '解析中...', progress_key: '获取密钥...' }, en: { title: 'Sniffer', copy: 'Copy', copied: 'Copied', download: 'Download', downloading: 'D/Ling...', saving: 'Saving...', done: 'Done', error: 'Error', native_down: 'Native DL', menu_set_threads: '⚙️ Set Concurrent Threads', prompt_threads: 'Enter max threads (Mobile: 2-4 recommended):', alert_threads_saved: 'Saved. Refresh to apply. Current threads: ', confirm_mobile_mp4: 'MP4 detected.\nUse browser native downloader?\n(Saves memory, faster)', alert_0_size: 'Download failed: File size is 0B.', alert_mp4_fallback: 'MP4 mux failed, fallback to raw TS.', alert_fail_general: 'Download failed: Data too small or memory optimization prevented fallback.', progress_parsing: 'Parsing...', progress_key: 'GetKey...' } }; const T = Locales[Lang]; // ========================================== // 1. 全局配置 (Configuration) // ========================================== const Config = { scanInterval: 2000, uiId: 'gm-sniffer-v22-opt', // 移动端检测 isMobile: /Android|webOS|iPhone|iPad|iPod|BlackBerry|IEMobile|Opera Mini/i.test(navigator.userAgent), // [优化] 手机端默认线程改为 2，PC端保持 4 get maxThreads() { const defaultThreads = this.isMobile ? 2 : 4; return GM_getValue('max_threads', defaultThreads); }, maxRetries: 3, retryDelay: 1000, colors: { primary: window.self === window.top ? '#4caf50' : '#e91e63', background: 'rgba(0, 0, 0, 0.9)', text: '#ffffff' } }; GM_registerMenuCommand(`${T.menu_set_threads} (${Config.maxThreads})`, () => { const input = prompt(T.prompt_threads, Config.maxThreads); const val = parseInt(input); if (val && val > 0 && val <= 32) { GM_setValue('max_threads', val); alert(`${T.alert_threads_saved} ${val}`); } }); // ========================================== // 2. 工具函数库 (Utilities) // ========================================== const Utils = { request: (url, isBinary = false) => { return new Promise((resolve, reject) => { GM_xmlhttpRequest({ method: 'GET', url: url, responseType: isBinary ? 'arraybuffer' : 'text', headers: { 'Referer': location.href, 'Origin': location.origin }, timeout: 60000, onload: (res) => { if (res.status >= 200 && res.status < 300) resolve(res.response); else reject(new Error(`HTTP Error ${res.status}`)); }, onerror: (err) => reject(err), ontimeout: () => reject(new Error('Timeout')) }); }); }, sleep: (ms) => new Promise(resolve => setTimeout(resolve, ms)), createElement: (tag, attrs = {}, children = []) => { const element = document.createElement(tag); for (const [key, value] of Object.entries(attrs)) { if (key === 'style' && typeof value === 'object') Object.assign(element.style, value); else if (key.startsWith('on') && typeof value === 'function') element.addEventListener(key.substring(2).toLowerCase(), value); else element.setAttribute(key, value); } const childList = Array.isArray(children) ? children : [children]; childList.forEach(child => { if (child instanceof Node) element.appendChild(child); else if (child !== null && child !== undefined) element.appendChild(document.createTextNode(String(child))); }); return element; }, downloadBlob: (blob, filename) => { if (blob.size === 0) { alert(T.alert_0_size); return; } const url = URL.createObjectURL(blob); const a = document.createElement('a'); a.href = url; a.download = filename; a.style.display = 'none'; document.body.appendChild(a); a.click(); setTimeout(() => { a.remove(); URL.revokeObjectURL(url); }, 30000); }, getFilename: (url) => { const cleanUrl = url.split('?')[0]; let name = cleanUrl.split('/').pop(); if (!name || name.trim() === '' || name === '/') name = `video_${Date.now()}.mp4`; return decodeURIComponent(name); }, resolveUrl: (baseUrl, relativeUrl) => { if (relativeUrl.startsWith('http')) return relativeUrl; if (relativeUrl.startsWith('/')) { const u = new URL(baseUrl); return u.origin + relativeUrl; } const path = baseUrl.substring(0, baseUrl.lastIndexOf('/') + 1); return path + relativeUrl; } }; // ========================================== // 3. 加密解密模块 (Crypto) // ========================================== const AESCrypto = { hexToBytes: (hex) => { if (!hex) return null; const cleanHex = hex.replace(/^0x/i, ''); const bytes = new Uint8Array(cleanHex.length / 2); for (let i = 0; i < cleanHex.length; i += 2) { bytes[i / 2] = parseInt(cleanHex.substring(i, i + 2), 16); } return bytes; }, sequenceToIV: (sequenceNumber) => { const buffer = new ArrayBuffer(16); const view = new DataView(buffer); view.setUint32(12, sequenceNumber, false); return new Uint8Array(buffer); }, decrypt: async (data, key, iv) => { try { const algorithm = { name: 'AES-CBC', iv: iv }; const cryptoKey = await window.crypto.subtle.importKey('raw', key, algorithm, false, ['decrypt']); return new Uint8Array(await window.crypto.subtle.decrypt(algorithm, cryptoKey, data)); } catch (error) { console.error('[Crypto] Decrypt Error:', error); return null; } } }; // ========================================== // 4. 事件总线 // ========================================== const Bus = { events: {}, on(event, callback) { if (!this.events[event]) this.events[event] = []; this.events[event].push(callback); }, emit(event, data) { if (this.events[event]) this.events[event].forEach(cb => cb(data)); } }; // ========================================== // 5. 网络嗅探器 // ========================================== class Sniffer { constructor() { this.seenUrls = new Set(); this.rules = { m3u8: /\.m3u8($|\?)|application\/.*mpegurl/i, mp4: /\.mp4($|\?)|video\/mp4/i, mov: /\.mov($|\?)|video\/quicktime/i }; } start() { this.hookFetch(); this.hookXHR(); setInterval(() => this.scanPerformance(), Config.scanInterval); } detect(url, contentType = '') { if (!url) return; if (url.match(/^data:|^blob:|\.(png|jpg|jpeg|gif|css|js|woff|svg)($|\?)/i)) return; const cleanKey = url.split('?')[0]; if (this.seenUrls.has(cleanKey)) return; const typeStr = contentType ? contentType.toLowerCase() : ''; for (const [type, regex] of Object.entries(this.rules)) { if (regex.test(url) || regex.test(typeStr)) { this.seenUrls.add(cleanKey); console.log(`[Sniffer] Found ${type}: ${url}`); Bus.emit('video-found', { url, type }); return; } } } hookFetch() { const originalFetch = unsafeWindow.fetch; unsafeWindow.fetch = async (...args) => { const url = args[0] instanceof Request ? args[0].url : args[0]; const response = await originalFetch.apply(unsafeWindow, args); try { const clone = response.clone(); clone.headers.forEach((val, key) => { if (key.toLowerCase() === 'content-type') this.detect(url, val); }); } catch(e) {} return response; }; } hookXHR() { const originalXHR = unsafeWindow.XMLHttpRequest; const self = this; class HijackedXHR extends originalXHR { open(method, url, ...args) { this._requestUrl = url; super.open(method, url, ...args); } send(...args) { this.addEventListener('readystatechange', () => { if (this.readyState === 4) { try { const contentType = this.getResponseHeader('content-type'); self.detect(this.responseURL || this._requestUrl, contentType); } catch(e) {} } }); super.send(...args); } } unsafeWindow.XMLHttpRequest = HijackedXHR; } scanPerformance() { if (!window.performance) return; performance.getEntriesByType('resource').forEach(entry => this.detect(entry.name)); } } // ========================================== // 6. 下载管理器 // ========================================== class VideoWriter { constructor() { this.mode = 'memory'; this.fileHandle = null; this.writable = null; this.chunks = []; this.rawChunks = []; this.totalSize = 0; } async init(filename) { if (Config.isMobile) { this.mode = 'memory'; return; } if (window.showSaveFilePicker) { try { this.fileHandle = await window.showSaveFilePicker({ suggestedName: filename }); this.writable = await this.fileHandle.createWritable(); this.mode = 'stream'; return; } catch (error) { console.warn('[Writer] Stream cancelled, use memory'); } } this.mode = 'memory'; } async write(data, rawData) { if (this.mode === 'stream') { if (data && data.length > 0) { await this.writable.write(data); this.totalSize += data.length; } } else { if (data && data.length > 0) { this.chunks.push(data); this.totalSize += data.length; } if (!Config.isMobile && rawData) { this.rawChunks.push(rawData); } } } async close(filename) { if (this.mode === 'stream') { await this.writable.close(); } else { let finalBlob = null; if (this.totalSize > 1024) { finalBlob = new Blob(this.chunks, { type: 'video/mp4' }); } else if (this.rawChunks && this.rawChunks.length > 0) { console.warn(T.alert_mp4_fallback); finalBlob = new Blob(this.rawChunks, { type: 'video/mp2t' }); if (!filename.endsWith('.ts')) filename = filename.replace(/\.mp4$/i, '.ts'); } else { alert(T.alert_fail_general); this.chunks = null; return; } Utils.downloadBlob(finalBlob, filename); this.chunks = null; this.rawChunks = null; finalBlob = null; } } } const downloadM3u8 = async (url, onProgress, writer) => { onProgress(0, T.progress_parsing); let content = await Utils.request(url); if (content.includes('#EXT-X-STREAM-INF')) { const lines = content.split('\n'); let bestBandwidth = 0; let bestUrl = null; for (let i = 0; i < lines.length; i++) { if (lines[i].startsWith('#EXT-X-STREAM-INF')) { const bandwidth = parseInt((lines[i].match(/BANDWIDTH=(\d+)/) || [0,0])[1]); const nextLine = lines[i+1]?.trim(); if (nextLine && !nextLine.startsWith('#') && bandwidth > bestBandwidth) { bestBandwidth = bandwidth; bestUrl = Utils.resolveUrl(url, nextLine); } } } if (bestUrl) { url = bestUrl; content = await Utils.request(url); } } const lines = content.split('\n'); const segments = []; let currentKey = null, currentIV = null, sequence = 0; for (const line of lines) { const l = line.trim(); if (!l) continue; if (l.startsWith('#EXT-X-KEY')) { const method = (l.match(/METHOD=([^,]+)/) || [])[1]; const uri = (l.match(/URI="([^"]+)"/) || [])[1]; const ivHex = (l.match(/IV=(0x[\da-f]+)/i) || [])[1]; if (method === 'AES-128' && uri) { currentKey = Utils.resolveUrl(url, uri); currentIV = ivHex ? AESCrypto.hexToBytes(ivHex) : null; } } else if (l.startsWith('#EXT-X-MEDIA-SEQUENCE')) { sequence = parseInt(l.split(':')[1]); } else if (!l.startsWith('#')) { segments.push({ url: Utils.resolveUrl(url, l), key: currentKey, iv: currentIV, seq: sequence++ }); } } if (segments.length === 0) throw new Error('No segments found'); const keyCache = new Map(); const uniqueKeys = [...new Set(segments.filter(s => s.key).map(s => s.key))]; if (uniqueKeys.length > 0) { onProgress(0, T.progress_key); for (const keyUrl of uniqueKeys) { const keyData = await Utils.request(keyUrl, true); keyCache.set(keyUrl, new Uint8Array(keyData)); } } const transmuxer = new muxjs.mp4.Transmuxer(); let currentTransmuxedData = []; transmuxer.on('data', (segment) => { const data = new Uint8Array(segment.initSegment.byteLength + segment.data.byteLength); data.set(segment.initSegment, 0); data.set(segment.data, segment.initSegment.byteLength); currentTransmuxedData.push(data); }); let nextIndex = 0; let completedCount = 0; let writeIndex = 0; const downloadBuffer = new Map(); const worker = async () => { while (nextIndex < segments.length) { const index = nextIndex++; const segment = segments[index]; let rawData = null; let retries = Config.maxRetries; while (!rawData && retries >= 0) { try { let data = await Utils.request(segment.url, true); if (segment.key) { const key = keyCache.get(segment.key); const iv = segment.iv || AESCrypto.sequenceToIV(segment.seq); data = (await AESCrypto.decrypt(data, key, iv)).buffer; } rawData = data; } catch (e) { retries--; await Utils.sleep(Config.retryDelay); } } downloadBuffer.set(index, rawData ? new Uint8Array(rawData) : new Uint8Array(0)); while (downloadBuffer.has(writeIndex)) { const chunk = downloadBuffer.get(writeIndex); downloadBuffer.delete(writeIndex); currentTransmuxedData = []; if (chunk.length > 0) { try { transmuxer.push(chunk); transmuxer.flush(); } catch (e) { console.warn('Mux Error', e); } } if (currentTransmuxedData.length > 0) { for (const d of currentTransmuxedData) await writer.write(d, null); } else { await writer.write(null, chunk); } writeIndex++; } completedCount++; const percent = ((completedCount / segments.length) * 100).toFixed(0); onProgress(percent, `${percent}%`); } }; const threads = Array(Math.min(Config.maxThreads, segments.length)).fill(null).map(() => worker()); await Promise.all(threads); }; const downloadMp4 = async (url, onProgress, writer) => { // [优化] 针对 MP4 直链，优先尝试浏览器原生下载 if (Config.isMobile) { try { if (confirm(`${Utils.getFilename(url)}\n${T.confirm_mobile_mp4}`)) { const a = document.createElement('a'); a.href = url; a.download = Utils.getFilename(url); a.target = '_blank'; // 注意：这里会打开新标签页以触发下载 document.body.appendChild(a); a.click(); setTimeout(() => a.remove(), 1000); onProgress(100, T.native_down); return; } } catch(e) {} } onProgress(0, T.downloading); const data = await Utils.request(url, true); await writer.write(new Uint8Array(data), null); onProgress(100); }; const TaskRunner = async (url, type, btn) => { const originalText = btn.textContent; let filename = Utils.getFilename(url); if (type === 'm3u8' && !filename.endsWith('.mp4')) filename += '.mp4'; const writer = new VideoWriter(); try { await writer.init(filename); if (type === 'm3u8') { await downloadM3u8(url, (pct, txt) => btn.textContent = txt || pct + '%', writer); } else { await downloadMp4(url, (pct, txt) => btn.textContent = txt || pct + '%', writer); } if (btn.textContent !== T.native_down) { btn.textContent = T.saving; await writer.close(filename); btn.textContent = T.done; } } catch (error) { console.error(error); btn.textContent = T.error; alert(`Error: ${error.message || error}`); } finally { setTimeout(() => btn.textContent = originalText, 3000); } }; // ========================================== // 7. UI 界面 // ========================================== class UI { constructor() { this.root = null; this.list = null; Bus.on('video-found', (data) => this.addItem(data)); } init() { if (document.getElementById(Config.uiId)) return; const host = Utils.createElement('div', { id: Config.uiId, style: { position: 'fixed', top: '15%', right: '2%', zIndex: 999999 } }); const shadow = host.attachShadow({ mode: 'open' }); const style = Utils.createElement('style'); style.textContent = ` :host { font-family: sans-serif; font-size: 12px; } .box { width: 220px; background: ${Config.colors.background}; color: ${Config.colors.text}; border: 1px solid ${Config.colors.primary}; border-radius: 6px; backdrop-filter: blur(5px); display: flex; flex-direction: column; box-shadow: 0 4px 15px rgba(0,0,0,0.5); } .head { padding: 8px; background: rgba(255,255,255,0.1); display: flex; justify-content: space-between; align-items: center; cursor: move; } .title { font-weight: bold; color: ${Config.colors.primary}; } .list { max-height: 200px; overflow-y: auto; } .item { padding: 8px; border-bottom: 1px solid rgba(255,255,255,0.1); } .row { display: flex; gap: 5px; align-items: center; margin-bottom: 5px; } .tag { background: ${Config.colors.primary}; color: #000; padding: 1px 3px; border-radius: 3px; font-weight: bold; font-size: 10px; } .name { flex: 1; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; cursor: pointer; } .actions { display: flex; gap: 5px; } button { flex: 1; border: none; padding: 6px; border-radius: 3px; cursor: pointer; font-size: 12px; } .btn-copy { background: #555; color: white; } .btn-down { background: ${Config.colors.primary}; color: #000; font-weight: bold; } .box.min { width: 40px; height: 40px; border-radius: 50%; justify-content: center; align-items: center; } .box.min .list, .box.min .title { display: none; } .toggle { font-size: 16px; padding: 0 5px; cursor: pointer; } `; const toggleBtn = Utils.createElement('span', { class: 'toggle' }, '－'); const titleEl = Utils.createElement('span', { class: 'title' }, `${T.title} (${Config.maxThreads})`); const head = Utils.createElement('div', { class: 'head' }, [titleEl, toggleBtn]); this.list = Utils.createElement('div', { class: 'list' }); this.root = Utils.createElement('div', { class: 'box' }, [head, this.list]); shadow.appendChild(style); shadow.appendChild(this.root); (document.body || document.documentElement).appendChild(host); toggleBtn.onclick = (e) => { e.stopPropagation(); this.root.classList.toggle('min'); toggleBtn.textContent = this.root.classList.contains('min') ? '🎬' : '－'; }; // Drag support let isDrag = false, startX, startY, initRight, initTop; const onDown = (e) => { if(e.target === toggleBtn) return; isDrag = true; const touch = e.touches ? e.touches[0] : e; startX = touch.clientX; startY = touch.clientY; const rect = host.getBoundingClientRect(); initRight = window.innerWidth - rect.right; initTop = rect.top; }; const onMove = (e) => { if (!isDrag) return; if (e.preventDefault) e.preventDefault(); const touch = e.touches ? e.touches[0] : e; host.style.right = (initRight + (startX - touch.clientX)) + 'px'; host.style.top = (initTop + (touch.clientY - startY)) + 'px'; }; const onUp = () => isDrag = false; head.addEventListener('touchstart', onDown); document.addEventListener('touchmove', onMove, {passive: false}); document.addEventListener('touchend', onUp); head.addEventListener('mousedown', onDown); document.addEventListener('mousemove', onMove); document.addEventListener('mouseup', onUp); } addItem({ url, type }) { this.init(); if (this.root.classList.contains('min') && this.list.children.length === 0) { this.root.querySelector('.toggle').click(); } const item = Utils.createElement('div', { class: 'item' }, [ Utils.createElement('div', { class: 'row' }, [ Utils.createElement('span', { class: 'tag' }, type), Utils.createElement('span', { class: 'name', title: url, onclick: () => { navigator.clipboard.writeText(url); alert(T.copied); }}, Utils.getFilename(url)) ]), Utils.createElement('div', { class: 'actions' }, [ Utils.createElement('button', { class: 'btn-copy', onclick: (e) => { navigator.clipboard.writeText(url); e.target.textContent = T.copied; setTimeout(() => e.target.textContent = T.copy, 1000); }}, T.copy), Utils.createElement('button', { class: 'btn-down', onclick: (e) => TaskRunner(url, type, e.target) }, T.download) ]) ]); if (this.list.firstChild) this.list.insertBefore(item, this.list.firstChild); else this.list.appendChild(item); } } new Sniffer().start(); new UI(); })();
