613 lines
26 KiB
C#
613 lines
26 KiB
C#
using dy.net.dto;
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using dy.net.utils;
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using Newtonsoft.Json;
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using System;
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using System.Net;
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using System.Net.Http;
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namespace dy.net.service
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{
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public class DyHttpClientService
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{
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public static readonly string DouYinApi = "https://www.douyin.com/aweme/v1/web/aweme";
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// 随机数生成器（避免重复实例化，保证随机性）
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private readonly IHttpClientFactory _clientFactory;
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public DyHttpClientService(IHttpClientFactory clientFactory)
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{
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_clientFactory = clientFactory;
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}
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/// <summary>
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/// 查询用户收藏的视频
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/// </summary>
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/// <param name="cursor"></param>
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/// <param name="count"></param>
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/// <param name="cookie"></param>
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/// <returns></returns>
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public async Task<CollectVideoInfo> SyncCollectVideos(string cursor, string count, string cookie)
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{
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if (string.IsNullOrWhiteSpace(cursor))
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{
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throw new ArgumentException($"“{nameof(cursor)}”不能为 null 或空。", nameof(cursor));
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}
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if (string.IsNullOrWhiteSpace(count))
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{
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throw new ArgumentException($"“{nameof(count)}”不能为 null 或空。", nameof(count));
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}
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if (string.IsNullOrWhiteSpace(cookie))
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{
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throw new ArgumentException($"“{nameof(cookie)}”不能为 null 或空。", nameof(cookie));
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}
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try
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{
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using var httpClient = _clientFactory.CreateClient("dy_collect");
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if (httpClient.DefaultRequestHeaders.Contains("Cookie"))
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{
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httpClient.DefaultRequestHeaders.Remove("Cookie");
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}
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httpClient.DefaultRequestHeaders.Add("Cookie", cookie);
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var dics = DySyncBaseParamDics.CollectParams;
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dics["cursor"]=cursor;
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dics["count"] = count;
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try
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{
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var token = await TokenManager.GenRealMsTokenAsync();
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dics["msToken"] = token;
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}
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catch (Exception ex)
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{
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Serilog.Log.Error($"获取mstoken失败{ex.Message}");
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}
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string UserAgent = "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/119.0.0.0 Safari/537.36";
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var endPoint = BogusManager.XbModel2Endpoint($"{DouYinApi}/listcollection", dics, UserAgent);
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var respose = await httpClient.PostAsync(endPoint, null);
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if (respose.IsSuccessStatusCode)
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{
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var data = await respose.Content.ReadAsStringAsync();
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return JsonConvert.DeserializeObject<CollectVideoInfo>(data);
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}
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else
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{
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Serilog.Log.Error($"SyncCollectVideos fail: {respose.StatusCode}");
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return null;
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}
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}
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catch (Exception ex)
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{
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Serilog.Log.Error($"SyncCollectVideos error: {ex.Message}");
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return null;
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}
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}
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/// <summary>
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/// 查询用户喜欢的视频
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/// </summary>
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/// <param name="count"></param>
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/// <param name="cursor"></param>
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/// <param name="secUserId"></param>
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/// <param name="cookie"></param>
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/// <returns></returns>
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/// <exception cref="ArgumentException"></exception>
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public async Task<CollectVideoInfo> SyncFavoriteVideos(string count,string cursor, string secUserId, string cookie)
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{
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if (string.IsNullOrWhiteSpace(cursor))
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{
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throw new ArgumentException($"“{nameof(cursor)}”不能为 null 或空。", nameof(cursor));
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}
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if (string.IsNullOrWhiteSpace(secUserId))
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{
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throw new ArgumentException($"“{nameof(secUserId)}”不能为 null 或空。", nameof(secUserId));
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}
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if (string.IsNullOrWhiteSpace(cookie))
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{
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throw new ArgumentException($"“{nameof(cookie)}”不能为 null 或空。", nameof(cookie));
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}
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try
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{
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using var httpClient = _clientFactory.CreateClient("dy_favorite");
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if (httpClient.DefaultRequestHeaders.Contains("Cookie"))
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{
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httpClient.DefaultRequestHeaders.Remove("Cookie");
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}
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httpClient.DefaultRequestHeaders.Add("Cookie", cookie);
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var dics = DySyncBaseParamDics.FavoriteParams;
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{
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// 添加动态参数
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dics["max_cursor"] = cursor;
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dics["sec_user_id"] = secUserId;
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dics["count"] = count;
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}
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// 构建请求URL
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var queryString = new FormUrlEncodedContent(dics);
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string fullUrl = $"{DouYinApi}/favorite?{await queryString.ReadAsStringAsync()}";
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var respose = await httpClient.GetAsync(fullUrl);
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if (respose.IsSuccessStatusCode)
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{
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var data = await respose.Content.ReadAsStringAsync();
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return JsonConvert.DeserializeObject<CollectVideoInfo>(data);
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}
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else
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{
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Serilog.Log.Error($"SyncFavoriteVideos fail: {respose.StatusCode}");
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return null;
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}
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}
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catch (Exception ex)
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{
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Serilog.Log.Error($"SyncFavoriteVideos error: {ex.Message}");
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return null;
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}
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}
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/// <summary>
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/// 查询Up主作品
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/// </summary>
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/// <param name="count"></param>
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/// <param name="cursor"></param>
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/// <param name="secUserId"></param>
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/// <param name="cookie"></param>
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/// <returns></returns>
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/// <exception cref="ArgumentException"></exception>
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public async Task<CollectVideoInfo> SyncUpderPostVideos(string count, string cursor, string secUserId, string cookie)
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{
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if (string.IsNullOrWhiteSpace(cursor))
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{
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throw new ArgumentException($"“{nameof(cursor)}”不能为 null 或空。", nameof(cursor));
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}
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if (string.IsNullOrWhiteSpace(secUserId))
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{
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throw new ArgumentException($"“{nameof(secUserId)}”不能为 null 或空。", nameof(secUserId));
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}
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if (string.IsNullOrWhiteSpace(cookie))
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{
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throw new ArgumentException($"“{nameof(cookie)}”不能为 null 或空。", nameof(cookie));
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}
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try
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{
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using var httpClient = _clientFactory.CreateClient("dy_uper");
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if (httpClient.DefaultRequestHeaders.Contains("Cookie"))
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{
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httpClient.DefaultRequestHeaders.Remove("Cookie");
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}
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httpClient.DefaultRequestHeaders.Add("Cookie", cookie);
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var parameters = DySyncBaseParamDics.UpderPostParams;
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{
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// 添加动态参数
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parameters["max_cursor"] = cursor;
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parameters["sec_user_id"] = secUserId;
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parameters["count"] = count;
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}
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// 构建请求URL
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var queryString = new FormUrlEncodedContent(parameters);
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string fullUrl = $"{DouYinApi}/post?{await queryString.ReadAsStringAsync()}";
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var ablog = new ABogus();//计算X-Bogus
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var a_bogus = ablog.GetValue(parameters);
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fullUrl += $"&X-Bogus={a_bogus}";
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var respose = await httpClient.GetAsync(fullUrl);
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if (respose.IsSuccessStatusCode)
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{
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var data = await respose.Content.ReadAsStringAsync();
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return JsonConvert.DeserializeObject<CollectVideoInfo>(data);
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}
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else
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{
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Serilog.Log.Error($"SyncUpderPostVideos fail: {respose.StatusCode}");
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return null;
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}
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}
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catch (Exception ex)
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{
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Serilog.Log.Error($"SyncUpderPostVideos error: {ex.Message}");
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return null;
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}
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}
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//AI优化2
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/// <summary>
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/// 下载文件并保存到本地（支持重试机制，优化批量下载稳定性）
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/// </summary>
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/// <param name="videoUrl">文件地址</param>
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/// <param name="savePath">保存路径</param>
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/// <param name="cookie">请求Cookie</param>
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/// <param name="httpclientName">HttpClient名称（默认"dy_down1"）</param>
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/// <param name="cancellationToken">取消令牌（用于终止任务）</param>
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/// <param name="streamTimeout">流读取超时时间（默认60秒）</param>
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/// <param name="maxRetryCount">最大重试次数（默认3次）</param>
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/// <param name="initialRetryDelay">初始重试延迟（默认1秒，指数退避）</param>
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/// <returns>是否下载成功</returns>
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public async Task<bool> DownloadAsync(
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string videoUrl,
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string savePath,
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string cookie,
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CancellationToken cancellationToken = default,
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TimeSpan? streamTimeout = null,
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int maxRetryCount = 3,
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TimeSpan? initialRetryDelay = null)
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{
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// 重试参数初始化
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int retryCount = 0;
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var retryDelay = initialRetryDelay ?? TimeSpan.FromSeconds(1); // 初始延迟1秒
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streamTimeout ??= TimeSpan.FromSeconds(60); // 流读取超时默认60秒
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while (true)
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{
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try
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{
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// 执行单次下载逻辑（提取为内部方法，避免代码重复）
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return await TryDownloadOnceAsync(
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videoUrl, savePath, cookie, cancellationToken, streamTimeout.Value);
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}
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catch (Exception ex) when (IsRetryableException(ex) && retryCount < maxRetryCount)
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{
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// 可重试异常且未达最大次数，等待后重试
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retryCount++;
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var delay = TimeSpan.FromMilliseconds(retryDelay.TotalMilliseconds * Math.Pow(2, retryCount - 1)); // 指数退避（1s→2s→4s...）
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Serilog.Log.Warning(ex, $"下载失败（第{retryCount}/{maxRetryCount}次重试）：{videoUrl}，将在{delay.TotalSeconds:F1}秒后重试");
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try
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{
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// 等待重试延迟（响应取消令牌）
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await Task.Delay(delay, cancellationToken).ConfigureAwait(false);
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}
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catch (OperationCanceledException)
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{
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// 等待期间被取消，直接返回失败
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Serilog.Log.Information($"重试等待被取消：{videoUrl}");
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return false;
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}
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}
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catch (OperationCanceledException) when (cancellationToken.IsCancellationRequested)
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{
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// 主动取消，不重试
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Serilog.Log.Information($"下载被取消：{videoUrl}");
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return false;
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}
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catch (Exception ex)
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{
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// 不可重试的异常（如参数错误、权限不足等），直接失败
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Serilog.Log.Error(ex, $"下载失败（不可重试）：{videoUrl}");
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CleanupIncompleteFile(savePath); // 清理不完整文件
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return false;
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}
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}
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}
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/// <summary>
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/// 单次下载尝试（核心下载逻辑）
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/// </summary>
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private async Task<bool> TryDownloadOnceAsync(
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string videoUrl,
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string savePath,
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string cookie,
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CancellationToken cancellationToken,
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TimeSpan streamTimeout)
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{
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DateTime lastStreamActivity = DateTime.UtcNow; // 流活动时间戳
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// 确保目录存在
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var directory = Path.GetDirectoryName(savePath);
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if (!Directory.Exists(directory))
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{
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Directory.CreateDirectory(directory);
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}
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// 清理已存在的文件（避免占用）
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CleanupIncompleteFile(savePath);
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using (var httpClient = _clientFactory.CreateClient("dy_download"))
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{
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// 配置请求头
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httpClient.DefaultRequestHeaders.Remove("Cookie");
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httpClient.DefaultRequestHeaders.Add("Cookie", cookie);
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httpClient.Timeout = TimeSpan.FromMinutes(5); // 总请求超时
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// 发送请求
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using (var response = await httpClient.GetAsync(
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videoUrl,
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HttpCompletionOption.ResponseHeadersRead,
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cancellationToken).ConfigureAwait(false))
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{
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response.EnsureSuccessStatusCode(); // 验证HTTP状态
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long? totalBytes = response.Content.Headers.ContentLength;
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// 读取流并写入文件
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using (var responseStream = await response.Content.ReadAsStreamAsync(cancellationToken).ConfigureAwait(false))
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using (var fileStream = new FileStream(
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savePath,
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FileMode.CreateNew,
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FileAccess.Write,
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FileShare.None,
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bufferSize: 8192,
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options: FileOptions.Asynchronous | FileOptions.SequentialScan))
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{
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byte[] buffer = new byte[8192];
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int bytesRead;
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long totalRead = 0;
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while ((bytesRead = await responseStream.ReadAsync(buffer, 0, buffer.Length, cancellationToken).ConfigureAwait(false)) > 0)
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{
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// 检查流读取超时
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if (DateTime.UtcNow - lastStreamActivity > streamTimeout)
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{
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throw new TimeoutException($"流读取超时（{streamTimeout.TotalSeconds}秒无数据）");
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}
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await fileStream.WriteAsync(buffer, 0, bytesRead, cancellationToken).ConfigureAwait(false);
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totalRead += bytesRead;
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lastStreamActivity = DateTime.UtcNow;
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// 进度计算（可选）
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if (totalBytes.HasValue)
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{
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double progress = (double)totalRead / totalBytes.Value * 100;
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// 进度上报逻辑：OnProgressChanged(progress);
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}
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}
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await fileStream.FlushAsync(cancellationToken).ConfigureAwait(false); // 确保数据写入磁盘
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}
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}
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}
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return true;
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}
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/// <summary>
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/// 判断异常是否可重试
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/// </summary>
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private bool IsRetryableException(Exception ex)
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{
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// 可重试的异常类型：网络错误、超时、服务器临时错误等
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return ex is HttpRequestException // HTTP请求失败（如5xx错误、连接中断）
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|| ex is TimeoutException // 超时（包括流超时和请求超时）
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|| ex is IOException // IO错误（如临时磁盘问题）
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|| (ex is AggregateException aggEx && aggEx.InnerExceptions.Any(IsRetryableException)); // 聚合异常中包含可重试项
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}
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/// <summary>
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/// 清理不完整的文件
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/// </summary>
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private void CleanupIncompleteFile(string savePath)
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{
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if (File.Exists(savePath))
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{
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try
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{
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File.Delete(savePath);
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}
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catch (IOException ex)
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{
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Serilog.Log.Warning(ex, $"清理不完整文件失败：{savePath}（可能被占用）");
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}
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}
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}
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//--AI优化后的-1
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///// <summary>
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///// 下载文件并保存到本地（优化批量下载假死问题）
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///// </summary>
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///// <param name="videoUrl">文件地址</param>
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///// <param name="savePath">保存路径</param>
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///// <param name="cookie">请求Cookie</param>
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///// <param name="cancellationToken">取消令牌（用于终止卡住的任务）</param>
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///// <param name="streamTimeout">流读取超时时间（默认30秒）</param>
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///// <returns>是否下载成功</returns>
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//public async Task<bool> DownloadAsync(
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// string videoUrl,
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// string savePath,
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// string cookie, string httpclientName=null,
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// CancellationToken cancellationToken = default,
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// TimeSpan? streamTimeout = null)
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//{
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// // 流读取超时默认60秒（避免长时间无数据导致假死）
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// var streamTimeoutValue = streamTimeout ?? TimeSpan.FromSeconds(60);
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// // 记录上次流活动时间（用于超时判断）
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// DateTime lastStreamActivity = DateTime.UtcNow;
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// try
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// {
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// // 确保目录存在
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// var directory = Path.GetDirectoryName(savePath);
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// if (!Directory.Exists(directory))
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// {
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// Directory.CreateDirectory(directory);
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// }
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// // 先删除已存在文件（处理文件占用问题）
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// if (File.Exists(savePath))
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// {
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// // 重试删除（防止文件刚被释放）
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// for (int i = 0; i < 3; i++)
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// {
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// try
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// {
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// File.Delete(savePath);
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// break;
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// }
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// catch (IOException) when (i < 2)
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// {
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// await Task.Delay(100, cancellationToken).ConfigureAwait(false);
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// }
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// }
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// }
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// httpclientName??="dy_down1";
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// // 使用客户端工厂创建HttpClient（复用连接池）
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// using (var httpClient = _clientFactory.CreateClient(httpclientName))
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// {
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// // 清理并添加Cookie
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// httpClient.DefaultRequestHeaders.Remove("Cookie");
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// httpClient.DefaultRequestHeaders.Add("Cookie", cookie);
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// // 总请求超时（包括连接和初始响应）
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// httpClient.Timeout = TimeSpan.FromMinutes(5);
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// // 发起请求（响应头就绪后返回，不等待完整内容）
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// using (var response = await httpClient.GetAsync(
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// videoUrl,
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// HttpCompletionOption.ResponseHeadersRead,
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// cancellationToken).ConfigureAwait(false))
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// {
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// response.EnsureSuccessStatusCode(); // 验证HTTP状态码
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// // 获取文件总大小（用于进度计算）
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// long? totalBytes = response.Content.Headers.ContentLength;
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// // 读取响应流并写入文件
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// using (var responseStream = await response.Content.ReadAsStreamAsync(cancellationToken)
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// .ConfigureAwait(false))
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// // 优化FileStream：异步模式+顺序扫描（提升大文件写入效率）
|
||
// using (var fileStream = new FileStream(
|
||
// savePath,
|
||
// FileMode.CreateNew,
|
||
// FileAccess.Write,
|
||
// FileShare.None,
|
||
// bufferSize: 8192,
|
||
// options: FileOptions.Asynchronous | FileOptions.SequentialScan))
|
||
// {
|
||
// byte[] buffer = new byte[8192];
|
||
// int bytesRead;
|
||
// long totalRead = 0;
|
||
|
||
// // 循环读取流（带超时和取消检查）
|
||
// while ((bytesRead = await responseStream.ReadAsync(
|
||
// buffer, 0, buffer.Length, cancellationToken).ConfigureAwait(false)) > 0)
|
||
// {
|
||
// // 检查流读取超时（长时间无数据）
|
||
// if (DateTime.UtcNow - lastStreamActivity > streamTimeoutValue)
|
||
// {
|
||
// throw new TimeoutException($"流读取超时（{streamTimeoutValue.TotalSeconds}秒无数据）");
|
||
// }
|
||
|
||
// // 写入文件
|
||
// await fileStream.WriteAsync(
|
||
// buffer, 0, bytesRead, cancellationToken).ConfigureAwait(false);
|
||
|
||
// // 更新进度和活动时间
|
||
// totalRead += bytesRead;
|
||
// lastStreamActivity = DateTime.UtcNow;
|
||
|
||
// // （可选）进度上报逻辑
|
||
// if (totalBytes.HasValue)
|
||
// {
|
||
// double progress = (double)totalRead / totalBytes.Value * 100;
|
||
// // 可通过事件或委托上报进度：OnProgressChanged(progress);
|
||
// }
|
||
// }
|
||
|
||
// // 确保数据刷入磁盘
|
||
// await fileStream.FlushAsync(cancellationToken).ConfigureAwait(false);
|
||
// }
|
||
// }
|
||
// }
|
||
|
||
// return true;
|
||
// }
|
||
// catch (OperationCanceledException) when (cancellationToken.IsCancellationRequested)
|
||
// {
|
||
// // 正常取消操作（非错误）
|
||
// Serilog.Log.Information($"下载被取消：{videoUrl}");
|
||
// return false;
|
||
// }
|
||
// catch (Exception ex)
|
||
// {
|
||
// // 记录错误并清理可能的不完整文件
|
||
// Serilog.Log.Error(ex, $"下载失败：{videoUrl}");
|
||
// if (File.Exists(savePath))
|
||
// {
|
||
// try { File.Delete(savePath); } catch { /* 忽略删除失败 */ }
|
||
// }
|
||
// return false;
|
||
// }
|
||
//}
|
||
|
||
///// <summary>
|
||
///// 下载文件并保存到本地
|
||
///// </summary>
|
||
///// <param name="videoUrl">文件地址</param>
|
||
///// <param name="savePath">保存路径</param>
|
||
///// <param name="cookie"></param>
|
||
//public async Task<bool> DownloadAsync(string videoUrl, string savePath, string cookie)
|
||
//{
|
||
// try
|
||
// {
|
||
// // 防止文件被占用，先删除已存在的文件
|
||
// if (File.Exists(savePath))
|
||
// {
|
||
// File.Delete(savePath);
|
||
// }
|
||
// // 创建HTTP客户端（设置超时时间和请求头）
|
||
// using (var httpClient = _clientFactory.CreateClient("dy_down"))
|
||
// {
|
||
// if (httpClient.DefaultRequestHeaders.Contains("Cookie"))
|
||
// {
|
||
// httpClient.DefaultRequestHeaders.Remove("Cookie");
|
||
// }
|
||
// httpClient.DefaultRequestHeaders.Add("Cookie", cookie);
|
||
// httpClient.Timeout = TimeSpan.FromMinutes(5); // 设置5分钟超时
|
||
|
||
// // 获取视频流
|
||
// using (var response = await httpClient.GetAsync(videoUrl, HttpCompletionOption.ResponseHeadersRead))
|
||
// {
|
||
// response.EnsureSuccessStatusCode(); // 确保请求成功
|
||
|
||
// // 获取文件总大小（用于进度显示）
|
||
// long? totalBytes = response.Content.Headers.ContentLength;
|
||
|
||
// // 读取流并写入文件
|
||
// using (var stream = await response.Content.ReadAsStreamAsync())
|
||
// using (var fileStream = new FileStream(savePath, FileMode.CreateNew))
|
||
// {
|
||
// byte[] buffer = new byte[8192];
|
||
// int bytesRead;
|
||
// long totalRead = 0;
|
||
|
||
// // 循环读取并写入
|
||
// while ((bytesRead = await stream.ReadAsync(buffer, 0, buffer.Length)) > 0)
|
||
// {
|
||
// await fileStream.WriteAsync(buffer, 0, bytesRead);
|
||
// totalRead += bytesRead;
|
||
|
||
// // 显示下载进度
|
||
// if (totalBytes.HasValue)
|
||
// {
|
||
// double progress = (double)totalRead / totalBytes.Value * 100;
|
||
// //Console.Write($"\r下载进度：{progress:F2}% ({totalRead}/{totalBytes.Value} bytes)");
|
||
// }
|
||
// }
|
||
// //Console.WriteLine(); // 进度显示结束后换行
|
||
// }
|
||
// }
|
||
// }
|
||
// return true;
|
||
// }
|
||
// catch (Exception ex)
|
||
// {
|
||
// Serilog.Log.Error($"DownloadVideoAsync fail: {ex.Message}");
|
||
// Serilog.Log.Error($"DownloadVideoAsync fail: {ex.StackTrace}");
|
||
// return false;
|
||
// }
|
||
//}
|
||
|
||
|
||
}
|
||
}
|