private void _disconnect(Exception e)
{
if (!_connected)
{
return;
}
InfoLogger.SendInfo(_roomid, "INFO", "连接断开");
_connected = false;
_client.Close();
_netStream = null;
OnDisconnected?.Invoke(this, new DisconnectEvtArgs {
Error = e
});
}
public async void Start(string savepath)
{
try
{
if (IsRunning)
{
InfoLogger.SendInfo(_roomid, "ERROR", "已经是运行状态了。");
return;
}
//设置运行状态。
IsRunning = true;
//读取设置
var config = Config.Instance;
_downloadCommentOption = config.IsDownloadComment;
_autoRetry = config.IsAutoRetry;
int.TryParse(config.Timeout ?? "2000", out _streamTimeout);
//获取真实下载地址
try
{
_flvUrl = await PathFinder.GetTrueUrl(_roomid);
}
catch
{
InfoLogger.SendInfo(_roomid, "ERROR", "未取得下载地址");
Stop();
return; //停止并退出
}
flvDownloader = new FlvDownloader(_roomid, savepath, _downloadCommentOption, _commentProvider);
flvDownloader.Info += _flvDownloader_Info;
CheckStreaming();
try
{
flvDownloader.Start(_flvUrl);
}
catch (Exception e)
{
InfoLogger.SendInfo(_roomid, "ERROR", "下载视频流时出错：" + e.Message);
Stop();
}
}catch (Exception e)
{
InfoLogger.SendInfo(_roomid, "ERROR", "未知错误：" + e.Message);
Stop();
}
}
static public Task <string> GetTrueUrl(string roomid)
{
return(Task.Run(() => {
if (roomid == null)
{
InfoLogger.SendInfo(roomid, "ERROR", "房间号获取错误。");
throw new Exception("No roomid");
}
var apiUrl = "https://api.live.bilibili.com/room/v1/Room/playUrl?cid=" + roomid + "&otype=json&qn=10000&platform=web";
SendStat(roomid);
//访问API获取结果
var wc = new WebClient();
wc.Headers.Add("Accept: */*");
wc.Headers.Add("User-Agent: " + Ver.UA);
wc.Headers.Add("Accept-Language: zh-CN,zh;q=0.8,en;q=0.6,ja;q=0.4");
string resultString;
try
{
resultString = wc.DownloadString(apiUrl);
}
catch (WebException e0)
{
InfoLogger.SendInfo(roomid, "ERROR", "发送解析请求失败<net>：" + e0.Message);
throw;
}
catch (Exception e)
{
InfoLogger.SendInfo(roomid, "ERROR", "发送解析请求失败：" + e.Message);
throw;
}
//解析结果
try
{
var jsonResult = JObject.Parse(resultString);
var trueUrl = jsonResult["data"]["durl"][0]["url"].ToString();
InfoLogger.SendInfo(roomid, "INFO", "地址解析成功：" + trueUrl);
return trueUrl;
}
catch (Exception e)
{
InfoLogger.SendInfo(roomid, "ERROR", "视频流地址解析失败：" + e.Message);
throw;
}
}));
}
private async void HeartbeatLoop()
{
try
{
while (_connected)
{
SendHeartbeatAsync();
await Task.Delay(30000);
}
}
catch (Exception e)
{
InfoLogger.SendInfo(_roomid, "ERROR", e.Message);
_disconnect(e);
}
}
private Task <string> GetCmtServer()
{
return(Task.Run(() => {
//获取真实弹幕服务器地址。
InfoLogger.SendInfo(_roomid, "INFO", "开始解析弹幕服务器");
var chatWc = new WebClient();
chatWc.Headers.Add("Accept: */*");
chatWc.Headers.Add("User-Agent: " + Ver.UA);
chatWc.Headers.Add("Accept-Language: zh-CN,zh;q=0.8,en;q=0.6,ja;q=0.4");
var chatApi = "http://live.bilibili.com/api/player?id=cid:" + _roomid;
string chatXmlString;
try
{
chatXmlString = chatWc.DownloadString(chatApi);
}
catch (Exception e)
{
InfoLogger.SendInfo(_roomid, "ERROR", "无法解析弹幕服务器：" + e.Message);
throw;
}
//解析弹幕信息Xml
chatXmlString = "<root>" + chatXmlString + "</root>";
var chatXml = new XmlDocument();
try
{
chatXml.LoadXml(chatXmlString);
}
catch (Exception e)
{
InfoLogger.SendInfo(_roomid, "ERROR", "解析XML失败：" + e.Message);
throw;
}
//取得弹幕服务器Url
var serverNode = chatXml.DocumentElement?.SelectSingleNode("/root/dm_server");
var cmtServerUrl = serverNode?.InnerText;
InfoLogger.SendInfo(_roomid, "INFO", "解析弹幕服务器地址成功：" + cmtServerUrl);
return cmtServerUrl;
}));
}
public void Stop()
{
if (IsRunning)
{
IsRunning = false;
_recordedSize = 0;
if (flvDownloader != null)
{
flvDownloader.Stop();
flvDownloader = null;
}
InfoLogger.SendInfo(_roomid, "INFO", "停止");
OnStop?.Invoke(this);
}
else
{
InfoLogger.SendInfo(_roomid, "ERROR", "已经是停止状态了");
}
}
public async void Connect()
{
try
{
var cmtServer = await GetCmtServer();
var cmtHost = cmtServer.Item1;
var cmtPort = cmtServer.Item2;
if (cmtHost == null)
{
throw new Exception("无法获得弹幕服务器地址");
}
//连接弹幕服务器
_client = new TcpClient();
await _client.ConnectAsync(cmtHost, cmtPort);
_netStream = _client.GetStream();
int.TryParse(_roomid, out int roomIdNumber);
if (SendJoinChannel(roomIdNumber))
{
_connected = true;
HeartbeatLoop();
var thread = new Thread(ReceiveMessageLoop)
{
IsBackground = true
};
thread.Start();
}
else
{
InfoLogger.SendInfo(_roomid, "ERROR", "加入频道失败");
throw new Exception("Could't add the channel");
}
}catch (Exception e)
{
InfoLogger.SendInfo(_roomid, "ERROR", e.Message);
_disconnect(e);
}
}
public void Stop(bool isNetError = false)
{
if (IsRunning)
{
IsRunning = false;
_recordedSize = 0;
if (flvDownloader != null)
{
flvDownloader.Stop();
flvDownloader = null;
}
InfoLogger.SendInfo(_roomid, "INFO", "停止");
OnStop?.Invoke(this, isNetError);
_timer?.Dispose();
}
else
{
InfoLogger.SendInfo(_roomid, "ERROR", "已经是停止状态了");
}
}
private async void CheckStreaming()
{
await Task.Delay(_streamTimeout);
try
{
if (flvDownloader == null)
{
return;
}
if (_recordedSize <= 1)
{
InfoLogger.SendInfo(_roomid, "INFO", "接收流超时。");
Stop();
}
}catch (Exception ex)
{
InfoLogger.SendInfo(_roomid, "ERROR", "在检查直播状态时发生未知错误：" + ex.Message);
Stop();
}
}
/// <summary>
/// 获取弹幕服务器地址和端口。
/// </summary>
/// <returns>Tuple<string, int>(弹幕服务器地址, 端口)</returns>
private Task <Tuple <string, int> > GetCmtServer()
{
return(Task.Run(() => {
//获取真实弹幕服务器地址。
InfoLogger.SendInfo(_roomid, "INFO", "开始解析弹幕服务器");
var chatWc = new WebClient();
chatWc.Headers.Add("Accept: */*");
chatWc.Headers.Add("User-Agent: " + Ver.UA);
chatWc.Headers.Add("Accept-Language: zh-CN,zh;q=0.8,en;q=0.6,ja;q=0.4");
var chatApi = "https://api.live.bilibili.com/room/v1/Danmu/getConf?room_id=" + _roomid;
string chatConfString;
try
{
chatConfString = chatWc.DownloadString(chatApi);
}
catch (Exception e)
{
InfoLogger.SendInfo(_roomid, "ERROR", "无法解析弹幕服务器：" + e.Message);
throw;
}
//解析弹幕信息
try
{
var chatConf = JObject.Parse(chatConfString);
var cmtServerHost = chatConf["data"]["host"].ToString();
int.TryParse(chatConf["data"]["port"].ToString(), out int cmtServerPort);
InfoLogger.SendInfo(_roomid, "INFO", $"解析弹幕服务器地址成功：{cmtServerHost}:{cmtServerPort}");
return new Tuple <string, int>(cmtServerHost, cmtServerPort);
}
catch (Exception e)
{
InfoLogger.SendInfo(_roomid, "ERROR", "解析弹幕服务器失败：" + e.Message);
throw;
}
}));
}
static public Task <RoomInfo> GetRoomInfo(string originalRoomId)
{
return(Task.Run(() => {
//InfoLogger.SendInfo(originalRoomId, "DEBUG", "正在刷新信息");
var roomWebPageUrl = "https://api.live.bilibili.com/room/v1/Room/get_info?id=" + originalRoomId;
var wc = new WebClient();
wc.Headers.Add("Accept: */*");
wc.Headers.Add("User-Agent: " + Ver.UA);
wc.Headers.Add("Accept-Language: zh-CN,zh;q=0.8,en;q=0.6,ja;q=0.4");
//发送HTTP请求
byte[] roomHtml;
try
{
roomHtml = wc.DownloadData(roomWebPageUrl);
}
catch (Exception e)
{
InfoLogger.SendInfo(originalRoomId, "ERROR", "获取房间信息失败：" + e.Message);
return null;
}
//解析返回结果
try
{
var roomJson = Encoding.UTF8.GetString(roomHtml);
var result = JObject.Parse(roomJson);
var uid = result["data"]["uid"].ToString();
var userInfoUrl = "https://api.bilibili.com/x/web-interface/card?mid=" + uid;
var uwc = new WebClient();
uwc.Headers.Add("Accept: */*");
uwc.Headers.Add("User-Agent: " + Ver.UA);
uwc.Headers.Add("Accept-Language: zh-CN,zh;q=0.8,en;q=0.6,ja;q=0.4");
byte[] userHtml;
try
{
userHtml = uwc.DownloadData(userInfoUrl);
}
catch (Exception e)
{
InfoLogger.SendInfo(originalRoomId, "ERROR", "获取用户信息失败：" + e.Message);
return null;
}
var userJson = Encoding.UTF8.GetString(userHtml);
var userResult = JObject.Parse(userJson);
var userName = userResult["data"]["card"]["name"].ToString();
var roominfo = new RoomInfo
{
realRoomid = result["data"]["room_id"].ToString(),
title = result["data"]["title"].ToString(),
liveStatus = result["data"]["live_status"].ToString() == "1" ? true : false,
username = userName
};
return roominfo;
}
catch (Exception e)
{
InfoLogger.SendInfo(originalRoomId, "ERROR", "房间信息解析失败：" + e.Message);
return null;
}
}));
}
public CommentModel(string json, long time, int version = 1)
{
Time = time;
RawData = json;
JsonVersion = version;
switch (version)
{
case 1:
{
var obj = JArray.Parse(json);
CommentText = obj[1].ToString();
CommentUser = obj[2][1].ToString();
MsgType = MsgTypeEnum.Comment;
break;
}
case 2:
{
var obj = JObject.Parse(json);
var cmd = obj["cmd"].ToString();
if (cmd.StartsWith("LIVE"))
{
MsgType = MsgTypeEnum.LiveStart;
RoomId = obj["roomid"].ToString();
}
else if (cmd.StartsWith("PREPARING"))
{
MsgType = MsgTypeEnum.LiveEnd;
RoomId = obj["roomid"].ToString();
}
else if (cmd.StartsWith("DANMU_MSG"))
{
CommentText = obj["info"][1].ToString();
CommentUser = obj["info"][2][1].ToString();
IsAdmin = obj["info"][2][2].ToString() == "1";
IsVip = obj["info"][2][3].ToString() == "1";
DmType = Convert.ToInt32(obj["info"][0][1]);
Fontsize = Convert.ToInt32(obj["info"][0][2]);
Color = Convert.ToInt32(obj["info"][0][3]);
SendTimestamp = Convert.ToInt64(obj["info"][0][4]);
UserHash = obj["info"][0][7].ToString();
MsgType = MsgTypeEnum.Comment;
}
else if (cmd.StartsWith("SEND_GIFT"))
{
MsgType = MsgTypeEnum.GiftSend;
GiftName = obj["data"]["giftName"].ToString();
GiftUser = obj["data"]["uname"].ToString();
Giftrcost = obj["data"]["rcost"].ToString();
GiftNum = obj["data"]["num"].ToString();
}
else if (cmd.StartsWith("GIFT_TOP"))
{
MsgType = MsgTypeEnum.GiftTop;
}
else if (cmd.StartsWith("WELCOME"))
{
MsgType = MsgTypeEnum.Welcome;
CommentUser = obj["data"]["uname"].ToString();
IsVip = true;
IsAdmin = obj["data"]["isadmin"].ToString() == "1";
}
else if (cmd == "SUPER_CHAT_MESSAGE")
{
MsgType = MsgTypeEnum.SuperChatMessage;
var price = obj["data"]["price"].ToString();
CommentText = $"SC ￥{price} " + obj["data"]["message"].ToString();
CommentUser = obj["data"]["user_info"]["uname"].ToString();
Fontsize = 40;
SendTimestamp = Convert.ToInt64(obj["data"]["ts"]);
InfoLogger.SendInfo("debug", "superchat", CommentText);
}
else
{
MsgType = MsgTypeEnum.Unknown;
}
break;
}
default:
throw new Exception("无法解析的弹幕数据");
}
}
public async void Start(string savepath)
{
try
{
if (IsRunning)
{
InfoLogger.SendInfo(_roomid, "ERROR", "已经是运行状态了。");
return;
}
//设置运行状态。
IsRunning = true;
//读取设置
var config = Config.Instance;
_downloadCommentOption = config.IsDownloadComment;
_autoRetry = config.IsAutoRetry;
int.TryParse(config.Timeout ?? "2000", out _streamTimeout);
//获取真实下载地址
try
{
_flvUrl = await PathFinder.GetTrueUrl(_roomid);
}
catch (WebException)
{
InfoLogger.SendInfo(_roomid, "ERROR", "未取得下载地址<net>");
Stop(true);
return; //停止并退出
}
catch
{
InfoLogger.SendInfo(_roomid, "ERROR", "未取得下载地址");
Stop();
return; //停止并退出
}
flvDownloader = new FlvDownloader(_roomid, savepath, _downloadCommentOption, _commentProvider);
flvDownloader.Info += _flvDownloader_Info;
CheckStreaming();
_larecordedSize = _recordedSize = 0;
try
{
flvDownloader.Start(_flvUrl);
}
catch (WebException e)
{
InfoLogger.SendInfo(_roomid, "ERROR", "下载视频流时出错<net>：" + e.Message);
Stop(true);
return; //停止并退出
}
catch (Exception e)
{
InfoLogger.SendInfo(_roomid, "ERROR", "下载视频流时出错：" + e.Message);
Stop();
}
_timer = new Timer((e) => {
if (_larecordedSize == _recordedSize)
{
InfoLogger.SendInfo(_roomid, "INFO", "接收流超时，超时时间内文件大小未有变动。");
Stop(true);
}
else
{
_larecordedSize = _recordedSize;
}
}, null, _streamTimeout, _streamTimeout);
}
catch (WebException e)
{
InfoLogger.SendInfo(_roomid, "ERROR", "未知错误<net>：" + e.Message);
Stop(true);
return; //停止并退出
}
catch (Exception e)
{
InfoLogger.SendInfo(_roomid, "ERROR", "未知错误：" + e.Message);
Stop();
}
}