music-downloader/app/main.js

const http = require("http");
const url = require("url");
const { ServerModel } = require('./model/ServerModel');
const { SearchModel } = require('./model/SearchModel');
const { storeMusic, storeLrc, storePic, checkMusicExists } = require('./model/StoreModel');
const { SuccessResult, ErrorResult } = require('./model/ResultModel');

const { QQSource } = require('./source/QQSource');
const mfm = require('./source/MyFreemp3Source');

// 防止进程中断
// process.on('uncaughtException', function (err) {
//     console.log('Caught exception: ' + err);
// });
// ***********************************************************************
// 注册源
const searcher = new SearchModel();
//searcher.registerSourceModel(new QQSource());
searcher.registerSourceModel(new mfm.MyFreemp3QQSource());
searcher.registerSourceModel(new mfm.MyFreemp3NeteaseSource());
searcher.registerSourceModel(new mfm.MyFreemp3KugouSource());
searcher.registerSourceModel(new mfm.MyFreemp3KuwoSource());
searcher.registerSourceModel(new mfm.MyFreemp3MiguSource());
searcher.registerSourceModel(new mfm.MyFreemp3QianqianSource());
searcher.registerSourceModel(new mfm.MyFreemp3QingtingSource());
searcher.registerSourceModel(new mfm.MyFreemp3XimalayaSource());
searcher.registerSourceModel(new mfm.MyFreemp3LizhiSource());
searcher.registerSourceModel(new mfm.MyFreemp3KgSource());
searcher.registerSourceModel(new mfm.MyFreemp31tingSource());
// searcher.registerSourceModel(new mfm.MyFreemp35singycSource());
// searcher.registerSourceModel(new mfm.MyFreemp35singfcSource());


// ***********************************************************************
// 添加API接口
const _server = new ServerModel();

_server.get("/api/source/all", (req, res, query) => {
    // 罗列都有哪些源
    return new SuccessResult(searcher.getSourceList());
});

_server.get("/api/search", async (req, res, query) => {
    //从源去进行搜索
    let result = await searcher.searchMusic(query.source_name, query.keywords);
    return new SuccessResult(result);
});

_server.get("/api/store/check", async (req, res, query) => {
    let is_exists = checkMusicExists(query.music_path);
    return new SuccessResult(is_exists);
});

_server.get("/api/store", async (req, res, query) => {
    //存储文件
    let music_path = query.music_path;
    let music_url = query.music_url;
    let lrc_content = query.lrc_content;
    let pic_url = query.pic_url;
    let store_music = parseInt(query.store_music);
    let store_lrc = parseInt(query.store_lrc);
    let store_pic = parseInt(query.store_pic);
    let path_name = music_path.split('.').slice(0,-1).join('.');
    let pic_extension = pic_url.split('?')[0].split('.').pop();
    let result = '';
    if(store_music) {
        await storeMusic(music_path, music_url);
        result += '保存歌曲成功！ ';
    }
    if(store_lrc) {
        await storeLrc(path_name + '.lrc', lrc_content);
        result += '保存歌词成功！ ';
    }
    if(store_pic) {
        await storePic(path_name + '.' + pic_extension, pic_url);
        result += '保存封面成功！ ';
    }
    return new SuccessResult(result);
});


// ***********************************************************************
// 运行服务
const server = http.createServer(async (req, res) => {
    let method = req.method;
    let reqUrl = req.url;
    let reqApi = reqUrl.split('?')[0];
    console.log(method, reqUrl);

    let result;
    try {
        if(method == "GET") {
            let query = url.parse(reqUrl, true).query;
            result = await _server.trigger(method, reqApi, req, res, query, null);
        }else if(method == "POST") {
            let query = url.parse(reqUrl, true).query;
            let data = {};
            result = await _server.trigger(method, reqApi, req, res, query, data);
        }
    }catch(err) {
        console.error(err);
        result = new ErrorResult(err);
    }

    res.setHeader('Access-Control-Allow-Origin', '*');
    //res.setHeader('Access-Control-Allow-Methods', '*');
    res.setHeader('Access-Control-Allow-Headers', '*');
    res.setHeader('Content-type', 'application/json;charset=utf-8');
    //res.writeHead(200, { 'Content-type': 'application/json;charset=utf-8' });
    res.end(JSON.stringify(result));
});

server.listen(5000, () => {
  console.log("server running at prot 5000");
});