微信上货 增加视频上传

TEMUKJD/BLL/WXVideoUploader.cs

@@ -0,0 +1,671 @@
+using AllBase;
+using AllBase.Model.Result;
+using Fiddler;
+using NaiBa.Util.Extension;
+using Newtonsoft.Json;
+using System;
+using System.Collections.Generic;
+using System.Diagnostics;
+using System.IO;
+using System.Linq;
+using System.Net;
+using System.Net.Http;
+using System.Net.Http.Headers;
+using System.Text;
+using System.Threading;
+using System.Threading.Tasks;
+
+namespace TemuKJD.BLL
+{
+	internal static class Config
+	{
+		// ------- Cookie -------
+
+
+		// ------- 以下是协议里的固定常量,一般不用改 -------
+		public const string VideoHost = "https://westoregamma.video.qq.com";
+		public const string ShopHost = "https://store.weixin.qq.com";
+		public const int BizId = 50087;      // 微信小店商品视频固定 bizId
+		public const int AppType = 162;      // 视频场景固定 apptype
+		public const int FileType = 20302;   // 视频场景固定 filetype
+		public const int ChunkSize = 2 * 1024 * 1024; // 分片大小 2MB,与抓包一致
+
+		// 轮询转码结果的间隔与最大次数
+		public static readonly TimeSpan PollInterval = TimeSpan.FromSeconds(2);
+		public const int MaxPollTimes = 30;
+	}
+	public class WXVideoUploader
+	{
+		private string Cookie = "";
+
+		// ------- 当前登录会话的 openid -------
+		private string OpenId = "";
+
+		// ------- 商品 ID, groupid -------
+		private string ProductId = "";
+
+		private string biz_magic = "";
+		private readonly HttpClient _http;
+		public WXVideoUploader()
+		{
+			_http = new HttpClient(new HttpClientHandler
+			{
+				Proxy = new WebProxy("http://127.0.0.1:8080"),
+				UseProxy = true,
+				UseCookies=false,
+				AutomaticDecompression = System.Net.DecompressionMethods.GZip
+										  | System.Net.DecompressionMethods.Deflate
+			});
+		}
+		public WXVideoUploader(HttpClient http)
+		{
+			_http = http;
+		}
+
+		public MultiMediaDownloadUrlResp Upload(ShopLoginInfo shop, string productId, string videoPath)
+		{
+			if (!File.Exists(videoPath))
+			{
+				throw new Exception("视频文件不存在");
+			}
+			byte[] bs = File.ReadAllBytes(videoPath);
+			return Upload(shop, productId, bs);
+		}
+		public MultiMediaDownloadUrlResp Upload(ShopLoginInfo shop, string productId, byte[] videoBytes)
+		{
+			var cookieLst = JsonHelper.DeserializeJsonToList<CefSharp.Cookie>(shop?.Cookies.ParseToString());
+			if (cookieLst == null)
+				cookieLst = new List<CefSharp.Cookie>();
+			foreach (var cook in cookieLst)
+			{
+				if (cook.Name == "biz_magic")
+				{
+					biz_magic = cook.Value;
+				}
+				Cookie += cook.Name + "=" + cook.Value + "; ";
+			}
+
+			OpenId = shop.openid;
+			ProductId = productId;
+			int fileSize = videoBytes.Length;
+			if (fileSize == 0)
+			{
+				throw new Exception("视频数据错误");
+			}
+
+
+
+			// taskId 贯穿整个上传流程的 X-Arguments,fileId 与之相同
+			string taskId = Guid.NewGuid().ToString();
+			Debug.WriteLine($"[0/6] GetUploadTempImgAuth");
+			TempImgAuthResp authResp = GetUploadTempImgAuth();
+
+			Debug.WriteLine($"[1/6] initupload  fileSize={fileSize}  taskId={taskId}");
+			InitUploadResp initResp = InitUpload(taskId, fileSize);
+			Debug.WriteLine($"      -> fileName={initResp.FileName} uKey={initResp.UKey} videoId={initResp.VideoId}");
+
+			Debug.WriteLine("[2/6] uploadpart 分片上传...");
+			List<FinishPart> finishParts = UploadParts(taskId, videoBytes, initResp.FileName, initResp.UKey, fileSize);
+			Debug.WriteLine($"      -> 共 {finishParts.Count} 片上传完成");
+
+			Debug.WriteLine("[3/6] finishupload 提交分片清单...");
+			FinishUpload(taskId, initResp.FileName, initResp.UKey, finishParts);
+
+			Debug.WriteLine("[4/6] transcode 触发转码...");
+			Transcode(taskId, initResp.FileName);
+
+			Debug.WriteLine("[5/6] getplayinfo 轮询转码结果...");
+			// 转码后的文件名规则: <videoId>.f100001.mp4
+			string transcodedFileName = $"{initResp.VideoId}.f100001.mp4";
+			string playUrl = PollPlayUrl(taskId, transcodedFileName);
+			Debug.WriteLine($"      -> playUrl={playUrl}");
+
+			Debug.WriteLine("[6/6] getMultiMediaDownloadUrl 换取最终下载地址...");
+			MultiMediaDownloadUrlResp finalResult = GetMultiMediaDownloadUrl(playUrl);
+			finalResult.VideoDuration = GetMp4Duration(videoBytes).Seconds;
+			return finalResult;
+		}
+
+
+
+		// -------------------------------------------------------------------
+		// getUploadTempImgAuth
+		// -------------------------------------------------------------------
+		private TempImgAuthResp GetUploadTempImgAuth(string uploadScene = "100")
+		{
+			string url = $"{Config.ShopHost}/shop-faas/mmecchannelspicture/cgi/getUploadTempImgAuth" +
+						 $"?token=&lang=zh_CN&uploadScene={uploadScene}";
+
+			using var req = new HttpRequestMessage(HttpMethod.Get, url);
+			req.Headers.TryAddWithoutValidation("Cookie", Cookie);
+			req.Headers.TryAddWithoutValidation("potter-scene", "weixinShop");
+			req.Headers.TryAddWithoutValidation("wecom_magic", "");
+			req.Headers.TryAddWithoutValidation("supplier_magic", "");
+			req.Headers.TryAddWithoutValidation("talent_magic", "");
+			req.Headers.TryAddWithoutValidation("logistics_magic", "");
+			req.Headers.TryAddWithoutValidation("mcn_magic", "");
+			req.Headers.TryAddWithoutValidation("biz_magic", biz_magic);
+			req.Headers.TryAddWithoutValidation("Accept", "application/json, text/plain, */*");
+			req.Headers.Referrer = new Uri($"{Config.ShopHost}/shop/goods/entry?productId={ProductId}");
+			
+			using HttpResponseMessage resp = _http.SendAsync(req).GetAwaiter().GetResult();
+			string json = resp.Content.ReadAsStringAsync().GetAwaiter().GetResult();
+			EnsureSuccessJson(resp, json);
+
+			var parsed = JsonConvert.DeserializeObject<TempImgAuthResp>(json, JsonOpts)!;
+			if (parsed.Code != 0)
+				throw new Exception($"getUploadTempImgAuth 失败: {json}");
+
+			return parsed;
+		}
+
+
+		// -------------------------------------------------------------------
+		// 1. initupload
+		// -------------------------------------------------------------------
+		private InitUploadResp InitUpload(string taskId, long fileSize)
+		{
+			var body = new
+			{
+				bizId = Config.BizId,
+				fileUpInfo = new
+				{
+					fileId = taskId,
+					fileType = "mp4",
+					fileSize
+				}
+			};
+
+			using var req = BuildVideoRequest(HttpMethod.Post, "/initupload", taskId);
+			req.Content = JsonContent(body);
+
+			using HttpResponseMessage resp = _http.SendAsync(req).GetAwaiter().GetResult();
+			string json = resp.Content.ReadAsStringAsync().GetAwaiter().GetResult();
+			EnsureSuccessJson(resp, json);
+
+			var parsed = JsonConvert.DeserializeObject<InitUploadResp>(json, JsonOpts)!;
+			if (parsed.Code != 0)
+				throw new Exception($"initupload 失败: {json}");
+			return parsed;
+		}
+
+		// -------------------------------------------------------------------
+		// 2. uploadpart(按 2MB 分片,partnum 从 1 开始)
+		// -------------------------------------------------------------------
+		private List<FinishPart> UploadParts(string taskId, byte[] videoBytes, string fileName, string uKey, long fileSize)
+		{
+			var finishParts = new List<FinishPart>();
+
+			using var fs = new MemoryStream(videoBytes);
+			byte[] buffer = new byte[Config.ChunkSize];
+			int partNum = 1;
+			long remaining = fileSize;
+
+			while (remaining > 0)
+			{
+				int toRead = (int)Math.Min(Config.ChunkSize, remaining);
+				int readTotal = 0;
+				while (readTotal < toRead)
+				{
+					int n = fs.Read(buffer, readTotal, toRead - readTotal);
+					if (n <= 0) throw new IOException("读取文件失败,文件可能被截断");
+					readTotal += n;
+				}
+
+				byte[] chunk = readTotal == buffer.Length ? buffer : buffer.Take(readTotal).ToArray();
+
+				string path = $"/uploadpart?filename={Uri.EscapeDataString(fileName)}&ukey={Uri.EscapeDataString(uKey)}&partnum={partNum}";
+				using var req = BuildVideoRequest(HttpMethod.Post, path, taskId);
+				req.Content = new ByteArrayContent(chunk);
+				req.Content.Headers.ContentType = new MediaTypeHeaderValue("application/json"); // 与抓包一致(实际发的是二进制)
+
+				using HttpResponseMessage resp = _http.SendAsync(req).GetAwaiter().GetResult();
+				string json = resp.Content.ReadAsStringAsync().GetAwaiter().GetResult();
+				EnsureSuccessJson(resp, json);
+
+				var parsed = JsonConvert.DeserializeObject<UploadPartResp>(json, JsonOpts)!;
+				if (parsed.Code != 0)
+					throw new Exception($"uploadpart(part {partNum}) 失败: {json}");
+
+				Console.WriteLine($"      part {partNum}: {readTotal} bytes, sha1(server)={parsed.PartSha}");
+				finishParts.Add(new FinishPart { PartNum = partNum, PartSha = parsed.PartSha });
+
+				remaining -= readTotal;
+				partNum++;
+			}
+
+			return finishParts;
+		}
+
+		// -------------------------------------------------------------------
+		// 3. finishupload
+		// -------------------------------------------------------------------
+		private void FinishUpload(string taskId, string fileName, string uKey, List<FinishPart> finishParts)
+		{
+			var body = new
+			{
+				bizId = Config.BizId,
+				fileName,
+				uKey,
+				finishParts,
+				transInfo = new
+				{
+					snapshot = new[] { new { formatId = 1400 } },      // 封面截图
+					transcode = new[] { new { formatId = 100003 }, new { formatId = 100004 } }
+				}
+			};
+
+			using var req = BuildVideoRequest(HttpMethod.Post, "/finishupload", taskId);
+			req.Content = JsonContent(body);
+
+			using HttpResponseMessage resp = _http.SendAsync(req).GetAwaiter().GetResult();
+			string json = resp.Content.ReadAsStringAsync().GetAwaiter().GetResult();
+			EnsureSuccessJson(resp, json);
+
+			var parsed = JsonConvert.DeserializeObject<CodeMsgResp>(json, JsonOpts)!;
+			if (parsed.Code != 0)
+				throw new Exception($"finishupload 失败: {json}");
+		}
+
+		// -------------------------------------------------------------------
+		// 4. transcode(触发最终可播放版本 formatId=100001)
+		// -------------------------------------------------------------------
+		private void Transcode(string taskId, string fileName)
+		{
+			var body = new
+			{
+				fileName,
+				bizId = Config.BizId,
+				transInfo = new { transcode = new[] { new { formatId = 100001 } } },
+				use_new_transcode = 1
+			};
+
+			using var req = BuildVideoRequest(HttpMethod.Post, "/transcode", taskId);
+			req.Content = JsonContent(body);
+
+			using HttpResponseMessage resp = _http.SendAsync(req).GetAwaiter().GetResult();
+			string json = resp.Content.ReadAsStringAsync().GetAwaiter().GetResult();
+			EnsureSuccessJson(resp, json);
+
+			var parsed = JsonConvert.DeserializeObject<CodeMsgResp>(json, JsonOpts)!;
+			if (parsed.Code != 0)
+				throw new Exception($"transcode 失败: {json}");
+		}
+
+		// -------------------------------------------------------------------
+		// 5. getplayinfo 轮询(转码未完成时返回 code=404,完成后 code=0 带 playUrl)
+		// -------------------------------------------------------------------
+		private string PollPlayUrl(string taskId, string transcodedFileName)
+		{
+			for (int i = 0; i < Config.MaxPollTimes; i++)
+			{
+				string path = $"/getplayinfo?filename={Uri.EscapeDataString(transcodedFileName)}";
+				using var req = BuildVideoRequest(HttpMethod.Get, path, taskId);
+
+				using HttpResponseMessage resp = _http.SendAsync(req).GetAwaiter().GetResult();
+				string json = resp.Content.ReadAsStringAsync().GetAwaiter().GetResult();
+
+				var parsed = JsonConvert.DeserializeObject<GetPlayInfoResp>(json, JsonOpts)!;
+				if (parsed.Code == 0 && parsed.FormatList != null && parsed.FormatList.Count > 0)
+				{
+					string? url = parsed.FormatList[0].PlayUrl;
+					if (!string.IsNullOrEmpty(url))
+						return url;
+				}
+
+				Console.WriteLine($"      转码中... ({i + 1}/{Config.MaxPollTimes}) code={parsed.Code}");
+				Thread.Sleep(Config.PollInterval);
+			}
+
+			throw new TimeoutException("等待转码超时,请增大 Config.MaxPollTimes 或检查视频云状态");
+		}
+
+		// -------------------------------------------------------------------
+		// 6. store.weixin.qq.com getMultiMediaDownloadUrl
+		// -------------------------------------------------------------------
+		private MultiMediaDownloadUrlResp GetMultiMediaDownloadUrl(string playUrl)
+		{
+			var url = $"{Config.ShopHost}/shop-faas/mmecchannelspicture/cgi/getMultiMediaDownloadUrl?token=&lang=zh_CN";
+
+			using var req = new HttpRequestMessage(HttpMethod.Post, url);
+			req.Headers.TryAddWithoutValidation("Cookie", Cookie);
+			req.Headers.TryAddWithoutValidation("potter-scene", "weixinShop");
+			// 抓包里这几个 magic 头是空字符串,但仍然带上
+			req.Headers.TryAddWithoutValidation("wecom_magic", "");
+			req.Headers.TryAddWithoutValidation("supplier_magic", "");
+			req.Headers.TryAddWithoutValidation("talent_magic", "");
+			req.Headers.TryAddWithoutValidation("logistics_magic", "");
+			req.Headers.TryAddWithoutValidation("mcn_magic", "");
+			req.Headers.TryAddWithoutValidation("biz_magic", biz_magic);
+			req.Headers.Referrer = new Uri($"{Config.ShopHost}/shop/goods/entry?productId={ProductId}");
+			req.Headers.TryAddWithoutValidation("Accept", "application/json, text/plain, */*");
+
+			req.Content = JsonContent(new { playUrl });
+
+			using HttpResponseMessage resp = _http.SendAsync(req).GetAwaiter().GetResult();
+			string json = resp.Content.ReadAsStringAsync().GetAwaiter().GetResult();
+			EnsureSuccessJson(resp, json);
+
+			var parsed = JsonConvert.DeserializeObject<MultiMediaDownloadUrlResp>(json, JsonOpts)!;
+			if (parsed.Code != 0)
+				throw new Exception($"getMultiMediaDownloadUrl 失败: {json}");
+			return parsed;
+		}
+
+		// -------------------------------------------------------------------
+		// 公共辅助方法
+		// -------------------------------------------------------------------
+
+		/// <summary>
+		/// 构造 westoregamma.video.qq.com 上的请求,统一带上 X-Arguments 等公共头
+		/// </summary>
+		private HttpRequestMessage BuildVideoRequest(HttpMethod method, string pathAndQuery, string taskId)
+		{
+			var req = new HttpRequestMessage(method, Config.VideoHost + pathAndQuery);
+
+			string xArguments =
+				$"apptype={Config.AppType}&filetype={Config.FileType}&openid={OpenId}&groupid={ProductId}&taskid={taskId}";
+
+			req.Headers.TryAddWithoutValidation("X-Requested-With", "XMLHttpRequest");
+			req.Headers.TryAddWithoutValidation("X-Arguments", xArguments);
+			req.Headers.TryAddWithoutValidation("Accept", "application/json, text/plain, */*");
+			req.Headers.Referrer = new Uri($"{Config.ShopHost}/");
+			req.Headers.TryAddWithoutValidation("Origin", Config.ShopHost);
+
+			return req;
+		}
+
+		private static HttpContent JsonContent(object body)
+		{
+			string json = JsonConvert.SerializeObject(body);
+			return new StringContent(json, Encoding.UTF8, "application/json");
+		}
+
+		private static void EnsureSuccessJson(HttpResponseMessage resp, string json)
+		{
+			if (!resp.IsSuccessStatusCode)
+				throw new Exception($"HTTP {(int)resp.StatusCode} {resp.ReasonPhrase}: {json}");
+		}
+
+
+		#region 获取video时长
+		/// <summary>
+		/// 从 MP4 字节数组中读取视频时长
+		/// </summary>
+		/// <param name="videoBytes">完整的 MP4 文件字节数组</param>
+		/// <returns>视频时长</returns>
+		private static TimeSpan GetMp4Duration(byte[] videoBytes)
+		{
+			if (videoBytes == null || videoBytes.Length < 8)
+				throw new ArgumentException("无效的 MP4 数据", nameof(videoBytes));
+
+			int offset = 0;
+
+			while (offset + 8 <= videoBytes.Length)
+			{
+				ulong boxSize = ReadUInt32BE(videoBytes, offset);
+				string boxType = Encoding.ASCII.GetString(
+					videoBytes, offset + 4, 4);
+
+				int headerSize = 8;
+
+				// Extended Size
+				if (boxSize == 1)
+				{
+					if (offset + 16 > videoBytes.Length)
+						throw new InvalidOperationException("MP4 Box 数据不完整");
+
+					boxSize = ReadUInt64BE(videoBytes, offset + 8);
+					headerSize = 16;
+				}
+				// size == 0 表示一直到文件末尾
+				else if (boxSize == 0)
+				{
+					boxSize = (ulong)(videoBytes.Length - offset);
+				}
+
+				if (boxSize < (ulong)headerSize ||
+					boxSize > (ulong)(videoBytes.Length - offset))
+				{
+					throw new InvalidOperationException(
+						"无效的 MP4 Box: " + boxType);
+				}
+
+				// 找到 moov
+				if (boxType == "moov")
+				{
+					int moovStart = offset + headerSize;
+					int moovLength = checked((int)boxSize - headerSize);
+
+					return ParseMoov(
+						videoBytes,
+						moovStart,
+						moovLength);
+				}
+
+				offset += checked((int)boxSize);
+			}
+
+			throw new InvalidOperationException(
+				"MP4 中没有找到 moov Box");
+		}
+
+		private static TimeSpan ParseMoov(
+			byte[] data,
+			int start,
+			int length)
+		{
+			int offset = start;
+			int end = start + length;
+
+			while (offset + 8 <= end)
+			{
+				ulong boxSize = ReadUInt32BE(data, offset);
+
+				string boxType = Encoding.ASCII.GetString(
+					data,
+					offset + 4,
+					4);
+
+				int headerSize = 8;
+
+				if (boxSize == 1)
+				{
+					if (offset + 16 > end)
+						throw new InvalidOperationException(
+							"MP4 Box 数据不完整");
+
+					boxSize = ReadUInt64BE(data, offset + 8);
+					headerSize = 16;
+				}
+				else if (boxSize == 0)
+				{
+					boxSize = (ulong)(end - offset);
+				}
+
+				if (boxSize < (ulong)headerSize ||
+					boxSize > (ulong)(end - offset))
+				{
+					throw new InvalidOperationException(
+						"无效的 MP4 Box: " + boxType);
+				}
+
+				// moov -> mvhd
+				if (boxType == "mvhd")
+				{
+					return ParseMvhd(
+						data,
+						offset + headerSize,
+						checked((int)boxSize - headerSize));
+				}
+
+				offset += checked((int)boxSize);
+			}
+
+			throw new InvalidOperationException(
+				"MP4 中没有找到 mvhd Box");
+		}
+
+		private static TimeSpan ParseMvhd(
+			byte[] data,
+			int start,
+			int length)
+		{
+			if (length < 20)
+				throw new InvalidOperationException(
+					"mvhd 数据不完整");
+
+			// version
+			byte version = data[start];
+
+			// Version 0
+			if (version == 0)
+			{
+				// version + flags       4
+				// creation_time         4
+				// modification_time     4
+				// timescale             4
+				// duration              4
+
+				uint timescale = ReadUInt32BE(
+					data,
+					start + 12);
+
+				uint duration = ReadUInt32BE(
+					data,
+					start + 16);
+
+				if (timescale == 0)
+					throw new InvalidOperationException(
+						"MP4 timescale 为 0");
+
+				return TimeSpan.FromSeconds(
+					(double)duration / timescale);
+			}
+
+			// Version 1
+			if (version == 1)
+			{
+				if (length < 32)
+					throw new InvalidOperationException(
+						"mvhd version 1 数据不完整");
+
+				// version + flags       4
+				// creation_time         8
+				// modification_time     8
+				// timescale             4
+				// duration              8
+
+				uint timescale = ReadUInt32BE(
+					data,
+					start + 20);
+
+				ulong duration = ReadUInt64BE(
+					data,
+					start + 24);
+
+				if (timescale == 0)
+					throw new InvalidOperationException(
+						"MP4 timescale 为 0");
+
+				return TimeSpan.FromSeconds(
+					(double)duration / timescale);
+			}
+
+			throw new NotSupportedException(
+				"不支持的 mvhd version: " + version);
+		}
+
+		private static uint ReadUInt32BE(
+			byte[] data,
+			int offset)
+		{
+			return (uint)(
+				(data[offset] << 24) |
+				(data[offset + 1] << 16) |
+				(data[offset + 2] << 8) |
+				data[offset + 3]);
+		}
+
+		private static ulong ReadUInt64BE(
+			byte[] data,
+			int offset)
+		{
+			uint high = ReadUInt32BE(data, offset);
+			uint low = ReadUInt32BE(data, offset + 4);
+
+			return ((ulong)high << 32) | low;
+		}
+		#endregion
+
+
+		private static readonly JsonSerializerSettings JsonOpts = new JsonSerializerSettings
+		{
+
+		};
+	}
+
+
+	internal class TempImgAuthResp
+	{
+		[JsonProperty("code")] public int Code { get; set; }
+		[JsonProperty("disK")] public string DisK { get; set; } = "";
+		[JsonProperty("disT")] public long DisT { get; set; }
+		[JsonProperty("ext")] public string Ext { get; set; } = "";
+		[JsonProperty("url")] public string Url { get; set; } = "";
+	}
+	internal class InitUploadResp
+	{
+		[JsonProperty("code")] public int Code { get; set; }
+		[JsonProperty("fileName")] public string FileName { get; set; } = "";
+		[JsonProperty("uKey")] public string UKey { get; set; } = "";
+		[JsonProperty("videoId")] public string VideoId { get; set; } = "";
+		[JsonProperty("msg")] public string Msg { get; set; }
+	}
+
+	internal class UploadPartResp
+	{
+		[JsonProperty("code")] public int Code { get; set; }
+		[JsonProperty("msg")] public string Msg { get; set; }
+		[JsonProperty("partSha")] public string PartSha { get; set; } = "";
+	}
+
+	internal class FinishPart
+	{
+		[JsonProperty("partNum")] public int PartNum { get; set; }
+		[JsonProperty("partSha")] public string PartSha { get; set; } = "";
+	}
+
+	internal class CodeMsgResp
+	{
+		[JsonProperty("code")] public int Code { get; set; }
+		[JsonProperty("msg")] public string Msg { get; set; }
+	}
+
+	internal class GetPlayInfoResp
+	{
+		[JsonProperty("code")] public int Code { get; set; }
+		[JsonProperty("msg")] public string Msg { get; set; }
+		[JsonProperty("formatList")] public List<PlayFormat>? FormatList { get; set; }
+	}
+
+	internal class PlayFormat
+	{
+		[JsonProperty("formatId")] public int FormatId { get; set; }
+		[JsonProperty("playUrl")] public string PlayUrl { get; set; }
+		[JsonProperty("duration")] public double Duration { get; set; }
+		[JsonProperty("width")] public int Width { get; set; }
+		[JsonProperty("height")] public int Height { get; set; }
+	}
+
+	public class MultiMediaDownloadUrlResp
+	{
+		[JsonProperty("code")] public int Code { get; set; }
+		[JsonProperty("videoImgUrl")] public string VideoImgUrl { get; set; }
+		[JsonProperty("downloadUrl")] public string DownloadUrl { get; set; }
+		/// <summary>
+		/// 时长
+		/// </summary>
+		public int VideoDuration { get; set; }
+	}
+}

TEMUKJD/KJD.csproj

@@ -63,7 +63,7 @@
     <DefineConstants>DEBUG;TRACE</DefineConstants>
     <DebugType>full</DebugType>
     <PlatformTarget>x64</PlatformTarget>
-    <LangVersion>7.3</LangVersion>
+    <LangVersion>8.0</LangVersion>
     <ErrorReport>prompt</ErrorReport>
     <Prefer32Bit>false</Prefer32Bit>
   </PropertyGroup>
@@ -73,7 +73,7 @@
     <Optimize>true</Optimize>
     <DebugType>pdbonly</DebugType>
     <PlatformTarget>x64</PlatformTarget>
-    <LangVersion>7.3</LangVersion>
+    <LangVersion>8.0</LangVersion>
     <ErrorReport>prompt</ErrorReport>
     <Prefer32Bit>true</Prefer32Bit>
   </PropertyGroup>
@@ -155,6 +155,7 @@
     <Compile Include="BLL\VDian\VDianUpProdMappingBLL.cs" />
     <Compile Include="BLL\VDian\VDianProductBLL.cs" />
     <Compile Include="BLL\WxApiBLL.cs" />
+    <Compile Include="BLL\WXVideoUploader.cs" />
     <Compile Include="BLL\Wx\WxPlatformRecommendProdManage.cs" />
     <Compile Include="BLL\YkdHttpResponseBLL.cs" />
     <Compile Include="BLL\WXHttpResponseBLL.cs" />