#!/usr/bin/env node /** * CCTV Video URL Parser * 解析央视视频URL，获取视频下载链接 * * 使用方法: * node parse_url.js "https://tv.cctv.com/2026/03/13/VIDE1I89jcwxtmOiZUd6zsLR260313.shtml" * node parse_url.js "330318aa5ca745d286b8d6c57e971a39" * echo "..." | node parse_url.js - */ const crypto = require('crypto'); const fs = require('fs'); // 固定参数 const CCTV_API_URL = 'https://vdn.apps.cntv.cn/api/getHttpVideoInfo.do'; const SECRET_KEY = '47899B86370B879139C08EA3B5E88267'; const UID = '826D8646DEBBFD97A82D23CAE45A55BE'; // 提取视频ID的正则规则 const PID_RULES = [ /var\s+guid\s*=\s*["']([\da-fA-F]+)["']/, /videoCenterId(?:["']\s*,|:)\s*["']([\da-fA-F]+)["']/, /changePlayer\s*\(\s*["']([\da-fA-F]+)["']\)/, /load[Vv]ideo\s*\(\s*["']([\da-fA-F]+)["']\)/, /var\s+initMyAray\s*=\s*["']([\da-fA-F]+)["']/, /var\s+ids\s*=\s*\[["']([\da-fA-F]+)["']\]/ ]; // PID格式：32位十六进制字符串 const PID_PATTERN = /^[\da-fA-F]{32}$/; /** * MD5哈希函数 */ function md5(value) { return crypto.createHash('md5').update(value, 'utf-8').digest('hex'); } /** * HTTP GET请求（使用fetch） */ async function httpGet(url) { try { const response = await fetch(url, { headers: { 'User-Agent': 'Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/142.0.0.0 Safari/537.36' } }); if (!response.ok) { throw new Error(`HTTP ${response.status}: ${response.statusText}`); } return await response.text(); } catch (error) { throw error; } } /** * 判断输入类型 * @param {string} input - 用户输入 * @returns {string} - 'url' | 'pid' | 'html' | 'stdin' */ function detectInputType(input) { if (input === '-') { return 'stdin'; } // 优先检测URL if (input.match(/^https?:\/\//i)) { return 'url'; } // 检测HTML/JavaScript内容（包含HTML标签或JavaScript变量声明） if (input.includes(' bestBandwidth) { bestBandwidth = bandwidth; bestUri = uriLine; } break; } } } } } // 如果没有找到多码率流，直接返回第一个非空行（单码率情况） if (!bestUri) { for (const line of lines) { const trimmed = line.trim(); if (trimmed && !trimmed.startsWith('#')) { bestUri = trimmed; break; } } } // 处理路径 if (bestUri && !bestUri.startsWith('http')) { const urlObj = new URL(m3u8BaseUrl); // 如果是绝对路径（以/开头） if (bestUri.startsWith('/')) { bestUri = `${urlObj.protocol}//${urlObj.host}${bestUri}`; } else { // 相对路径 const basePath = urlObj.pathname.substring(0, urlObj.pathname.lastIndexOf('/') + 1); bestUri = `${urlObj.protocol}//${urlObj.host}${basePath}${bestUri}`; } } return bestUri; } /** * 根据PID获取视频信息 * @param {string} pid - 视频ID * @returns {Promise} 视频信息对象 */ async function getVideoInfoByPid(pid) { console.log(`使用视频ID: ${pid}`); // 构建API请求参数 console.log('步骤1: 构建API请求...'); const tsp = Math.floor(Date.now() / 1000); const vn = '2049'; const vc = md5(tsp + vn + SECRET_KEY + UID); const apiParams = new URLSearchParams({ pid: pid, client: 'flash', im: '0', tsp: tsp.toString(), vn: vn, vc: vc, uid: UID, wlan: '' }); const apiUrl = `${CCTV_API_URL}?${apiParams.toString()}`; console.log(`API URL: ${apiUrl}`); // 调用API获取视频信息 console.log('步骤2: 获取视频信息...'); const apiResponse = await httpGet(apiUrl); const videoData = JSON.parse(apiResponse); console.log('视频信息:', { title: videoData.title, pgtv: videoData.pgtv }); // 获取m3u8下载链接 console.log('步骤3: 解析下载链接...'); const manifest = videoData.manifest || {}; let hlsUrl = manifest.hls_h5e_url || manifest.hls_url || videoData.hls_h5e_url || videoData.hls_url; if (!hlsUrl) { throw new Error('无法获取HLS下载链接'); } console.log(`HLS URL: ${hlsUrl}`); // 解析m3u8获取最高质量的流 console.log('步骤4: 解析M3U8获取最佳质量...'); const m3u8Content = await httpGet(hlsUrl); const downloadUrl = parseM3U8ForBestQuality(m3u8Content, hlsUrl); if (!downloadUrl) { throw new Error('无法解析M3U8内容'); } console.log(`最终下载链接: ${downloadUrl}`); return { success: true, title: videoData.title, pid: pid, pgtv: videoData.pgtv, hls_key: manifest.hls_h5e_url ? 'hls_h5e_url' : 'hls_url', download_url: downloadUrl, m3u8_url: hlsUrl, cover_url: videoData.image }; } /** * 主函数：解析CCTV视频URL * @param {string} input - 输入（URL、PID或HTML内容） * @returns {Promise} 视频信息对象 */ async function parseCCTVUrl(input) { try { const inputType = detectInputType(input); console.log(`检测到输入类型: ${inputType}`); // 如果是PID，直接调用API if (inputType === 'pid') { return await getVideoInfoByPid(input); } // 如果是URL，获取页面内容并提取PID if (inputType === 'url') { console.log(`正在解析URL: ${input}`); console.log('步骤1: 获取页面内容...'); const html = await httpGet(input); const pid = extractPid(html); if (!pid) { throw new Error('无法从页面中提取视频ID'); } console.log(`找到视频ID: ${pid}`); return await getVideoInfoByPid(pid); } // 如果是HTML内容，直接提取PID if (inputType === 'html') { console.log('检测到HTML内容，直接提取视频ID...'); const pid = extractPid(input); if (!pid) { throw new Error('无法从HTML内容中提取视频ID'); } console.log(`找到视频ID: ${pid}`); return await getVideoInfoByPid(pid); } throw new Error(`不支持的输入类型: ${inputType}`); } catch (error) { console.error('解析失败:', error.message); return { success: false, error: error.message }; } } // 导出函数供其他模块使用 module.exports = {parseCCTVUrl, detectInputType, getVideoInfoByPid};