mirror of
https://github.com/Jerryplusy/rc-plugin.git
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256 lines
8.2 KiB
JavaScript
256 lines
8.2 KiB
JavaScript
import fs from "node:fs";
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import axios from 'axios'
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import child_process from 'node:child_process'
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import util from "util";
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import { BILI_BVID_TO_CID, BILI_DYNAMIC, BILI_PLAY_STREAM, BILI_VIDEO_INFO } from "../constants/tools.js";
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import { mkdirIfNotExists } from "./file.js";
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/**
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* 下载单个bili文件
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* @param url
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* @param fullFileName
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* @param progressCallback
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* @returns {Promise<any>}
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*/
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export async function downloadBFile(url, fullFileName, progressCallback) {
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return axios
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.get(url, {
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responseType: 'stream',
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headers: {
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'User-Agent':
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'Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/100.0.4896.127 Safari/537.36',
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referer: 'https://www.bilibili.com',
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},
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})
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.then(({ data, headers }) => {
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let currentLen = 0;
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const totalLen = headers['content-length'];
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return new Promise((resolve, reject) => {
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data.on('data', ({ length }) => {
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currentLen += length;
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progressCallback?.(currentLen / totalLen);
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});
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data.pipe(
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fs.createWriteStream(fullFileName).on('finish', () => {
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resolve({
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fullFileName,
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totalLen,
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});
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}),
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);
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});
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});
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}
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/**
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* 获取下载链接
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* @param url
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* @returns {Promise<any>}
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*/
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export async function getDownloadUrl(url) {
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return axios
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.get(url, {
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headers: {
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'User-Agent':
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'Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/100.0.4896.127 Safari/537.36',
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referer: 'https://www.bilibili.com',
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},
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})
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.then(({ data }) => {
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const info = JSON.parse(
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data.match(/<script>window\.__playinfo__=({.*})<\/script><script>/)?.[1],
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);
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// 如果是大视频直接最低分辨率
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const videoUrl =
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info?.data?.dash?.video?.[0]?.baseUrl ?? info?.data?.dash?.video?.[0]?.backupUrl?.[0];
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const audioUrl =
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info?.data?.dash?.audio?.[0]?.baseUrl ?? info?.data?.dash?.audio?.[0]?.backupUrl?.[0];
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const title = data.match(/title="(.*?)"/)?.[1]?.replaceAll?.(/\\|\/|:|\*|\?|"|<|>|\|/g, '');
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if (videoUrl && audioUrl) {
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return { videoUrl, audioUrl, title };
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}
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return Promise.reject('获取下载地址失败');
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});
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}
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/**
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* 合并视频和音频
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* @param vFullFileName
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* @param aFullFileName
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* @param outputFileName
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* @param shouldDelete
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* @returns {Promise<{outputFileName}>}
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*/
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export async function mergeFileToMp4(vFullFileName, aFullFileName, outputFileName, shouldDelete = true) {
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// 判断当前环境
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let env;
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if (process.platform === "win32") {
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env = process.env
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} else if (process.platform === "linux") {
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env = {
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...process.env,
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PATH: '/usr/local/bin:' + child_process.execSync('echo $PATH').toString(),
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};
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} else {
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logger.error("暂时不支持当前操作系统！")
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}
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const execFile = util.promisify(child_process.execFile);
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try {
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const cmd = 'ffmpeg';
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const args = ['-y', '-i', vFullFileName, '-i', aFullFileName, '-c', 'copy', outputFileName];
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await execFile(cmd, args, { env });
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if (shouldDelete) {
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await fs.promises.unlink(vFullFileName);
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await fs.promises.unlink(aFullFileName);
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}
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return { outputFileName };
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} catch (err) {
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logger.error(err);
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}
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}
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/**
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* 下载m4s文件，通过ffmpeg转换成mp3
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* @param m4sUrl
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* @returns {Promise<void>}
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*/
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export async function m4sToMp3(m4sUrl, path) {
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return axios
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.get(m4sUrl, {
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responseType: 'stream',
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headers: {
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'User-Agent':
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'Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/100.0.4896.127 Safari/537.36',
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referer: 'https://www.bilibili.com',
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},
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}).then(async res => {
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// 如果没有目录就创建一个
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await mkdirIfNotExists(path)
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// 补充保存文件名
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path += "/temp.m4s";
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if (fs.existsSync(path)) {
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fs.unlinkSync(path);
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}
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// 开始下载
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const fileStream = fs.createWriteStream(path);
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res.data.pipe(fileStream);
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// 下载完成
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return new Promise((resolve, reject) => {
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fileStream.on("finish", () => {
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fileStream.close(() => {
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const transformCmd = `ffmpeg -i ${ path } ${ path.replace(".m4s", ".mp3") } -y -loglevel quiet`;
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child_process.execSync(transformCmd)
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logger.mark("bili: mp3下载完成")
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resolve(path);
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});
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});
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fileStream.on("error", err => {
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fs.unlink(path, () => {
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reject(err);
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});
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});
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});
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});
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}
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/**
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* 哔哩哔哩音乐下载
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* @param bvid BVID
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* @param cid （选项）CID
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* @returns {Promise<any>}
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*/
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export async function getBiliAudio(bvid, cid) {
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// 转换cid
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if (!cid)
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cid = await fetchCID(bvid).catch((err) => console.log(err))
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// 返回一个fetch的promise
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return (new Promise((resolve, reject) => {
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fetch(BILI_PLAY_STREAM.replace("{bvid}", bvid).replace("{cid}", cid))
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.then(res => res.json())
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.then(json => resolve(json.data.dash.audio[0].baseUrl));
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}))
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}
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/**
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* bvid转换成cid
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* @param bvid
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* @returns {Promise<*>}
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*/
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export const fetchCID = async (bvid) => {
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//console.log('Data.js Calling fetchCID:' + URL_BVID_TO_CID.replace("{bvid}", bvid))
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const res = await fetch(BILI_BVID_TO_CID.replace("{bvid}", bvid))
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const json = await res.json()
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const cid = json.data[0].cid
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return cid
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}
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/**
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* 获取视频信息
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* @param url
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* @returns {Promise<{duration: *, owner: *, bvid: *, stat: *, pages: *, dynamic: *, pic: *, title: *, aid: *, desc: *, cid: *}>}
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*/
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export async function getVideoInfo(url) {
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// const baseVideoInfo = "http://api.bilibili.com/x/web-interface/view";
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const videoId = /video\/[^\?\/ ]+/.exec(url)[0].split("/")[1];
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// 获取视频信息，然后发送
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return fetch(`${ BILI_VIDEO_INFO }?bvid=${ videoId }`)
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.then(async resp => {
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const respJson = await resp.json();
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const respData = respJson.data;
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return {
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title: respData.title,
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pic: respData.pic,
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desc: respData.desc,
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duration: respData.duration,
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dynamic: respJson.data.dynamic,
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stat: respData.stat,
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bvid: respData.bvid,
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aid: respData.aid,
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cid: respData.pages?.[0].cid,
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owner: respData.owner,
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pages: respData?.pages,
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};
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});
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}
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/**
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* 获取动态
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* @param dynamicId
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* @returns {Promise<any>}
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*/
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export async function getDynamic(dynamicId) {
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const dynamicApi = BILI_DYNAMIC.replace("{}", dynamicId);
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return axios.get(dynamicApi, {
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headers: {
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'User-Agent':
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'Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/100.0.4896.127 Safari/537.36',
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'referer': 'https://www.bilibili.com',
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}
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}).then(resp => {
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const dynamicData = resp.data.data.card
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const card = JSON.parse(dynamicData.card)
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const dynamicOrigin = card.item
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const dynamicDesc = dynamicOrigin.description
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const pictures = dynamicOrigin.pictures
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let dynamicSrc = []
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for (let pic of pictures) {
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const img_src = pic.img_src
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dynamicSrc.push(img_src)
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}
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// console.log(dynamic_src)
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return {
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dynamicSrc,
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dynamicDesc
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}
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})
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} |