Services/Music/KWMusicService.cs

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using LisMusic.Common;
using LisMusic.Models;
using Newtonsoft.Json.Linq;
using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using System.Net;
using System.Net.Http;
using System.Threading.Tasks;

namespace LisMusic.Services
{
    public class KWMusicService : MusicHttpClient, IALLMusicService
    {
        private readonly MusicSource _musicSource = MusicSource.KW;

        //参数：<<KeyWord>>
        const string urlGetMusicList1 = "http://www.kuwo.cn/search/list?key={0}";//新搜索，分两步，两个url
        const string urlGetMusicList2 = "http://www.kuwo.cn/api/www/search/searchMusicBykeyWord?key={0}&pn=1&rn=30&reqId=";
        //const string urlGetMusicList = "http://sou.kuwo.cn/ws/NSearch?type=music&key={0}";//旧搜索URL，返回html
        //参数：<<MUSICID>> //旧下载接口，可下vip
        const string urlGetMusicDownloadUrl = "http://antiserver.kuwo.cn/anti.s?format=mp3|mp3&rid={0}&type=convert_url&response=res";

        public KWMusicService(HttpClient httpClient) : base(httpClient)
        {
            //httpClient.BaseAddress = new Uri("http://sou.kuwo.cn");
        }
        public MusicSource MusicSource => _musicSource;


        public async Task<List<MusicInfo>> GetMusicListAsync(string keyWord)
        {
            List<MusicInfo> musicInfos = new List<MusicInfo>();

            try
            {
                //第一步，获取 头部csrf
                string url1 = string.Format(urlGetMusicList1, keyWord);
                await base.GetAsync(url1);
                string strKwToken = base.GetCookie("kw_token");
                //第二步，获取 列表
                string url2 = string.Format(urlGetMusicList2, keyWord);
                HttpRequestMessage message = new HttpRequestMessage(HttpMethod.Get, url2);
                message.Headers.Add("Referer", url1);
                message.Headers.Add("csrf", strKwToken);
                string str = await base.SendAsync(message);
                //解析列表
                JObject jo = JObject.Parse(str);
                for (int i = 0; i < jo["data"]["list"].Count(); i++)
                {
                    bool bolCanDownload = true;
                    //旧接口下载，高品质而且vip可下
                    //if (jo["data"]["lists"][i]["pay"].ToString() == "16711935") //该字段为16711935，则为收费，不可下载
                    //    bolCanDownload = false;

                    MusicInfo musicInfo = new MusicInfo() { Name = jo["data"]["list"][i]["name"].ToString(), Singer = jo["data"]["list"][i]["artist"].ToString(), Album = jo["data"]["list"][i]["album"].ToString(), DownloadInfo = jo["data"]["list"][i]["musicrid"].ToString(), CanDownload = bolCanDownload, MusicSource = MusicSource.KW };

                    musicInfos.Add(musicInfo);
                }