internal static void Log(int id, string message, Exception exception = null)
{
if (exception == null)
{
LogOutput?.Invoke(null, message);
}
else
{
ExceptionHappened?.Invoke(null, exception, message);
}
}
private async Task <bool> ConnectAsync()
{
if (this.IsDanmakuConnected)
{
return(true);
}
try
{
var(token, host, port) = await this.bililiveAPI.GetDanmuConf(this.RoomId);
LogOutput?.Invoke(this, $"连接弹幕服务器 {host}:{port} {(string.IsNullOrWhiteSpace(token) ? "无" : "有")} token");
this.dmClient = this.funcTcpClient();
await this.dmClient.ConnectAsync(host, port).ConfigureAwait(false);
this.dmNetStream = this.dmClient.GetStream();
this.dmReceiveMessageLoopThread = new Thread(this.ReceiveMessageLoop)
{
Name = "ReceiveMessageLoop " + this.RoomId,
IsBackground = true
};
this.dmReceiveMessageLoopThread.Start();
var hello = JsonConvert.SerializeObject(new
{
uid = 0,
roomid = this.RoomId,
protover = 2,
platform = "web",
clientver = "1.11.0",
type = 2,
key = token,
}, Formatting.None);
this.SendSocketData(7, hello);
this.SendSocketData(2);
return(true);
}
catch (Exception ex)
{
this.dmError = ex;
ExceptionHappened?.Invoke(this, ex, "连接弹幕服务器错误");
PropertyChanged?.Invoke(this, new PropertyChangedEventArgs(nameof(this.IsDanmakuConnected)));
return(false);
}
}
public StreamMonitor(int roomId, Func <TcpClient> funcTcpClient)
{
this.funcTcpClient = funcTcpClient;
this.bililiveAPI = new BililiveAPI(null);
this.RoomId = roomId;
ReceivedDanmaku += this.Receiver_ReceivedDanmaku;
RoomInfoUpdated += this.StreamMonitor_RoomInfoUpdated;
this.dmTokenSource = new CancellationTokenSource();
Repeat.Interval(TimeSpan.FromSeconds(30), () =>
{
if (this.dmNetStream != null && this.dmNetStream.CanWrite)
{
try
{
this.SendSocketData(2);
}
catch (Exception) { }
}
}, this.dmTokenSource.Token);
this.httpTimer = new Timer(5 * 1000)
{
Enabled = false,
AutoReset = true,
SynchronizingObject = null,
Site = null
};
this.httpTimer.Elapsed += (sender, e) =>
{
try
{
this.Check(TriggerType.HttpApi);
}
catch (Exception ex)
{
ExceptionHappened?.Invoke(this, ex, "检测开播状态失败");
}
};
}
private void ReceiveMessageLoop()
{
LogOutput?.Invoke(this, "ReceiveMessageLoop Started");
try
{
var stableBuffer = new byte[16];
var buffer = new byte[4096];
while (this.IsDanmakuConnected)
{
this.dmNetStream.ReadB(stableBuffer, 0, 16);
Parse2Protocol(stableBuffer, out DanmakuProtocol protocol);
if (protocol.PacketLength < 16)
{
throw new NotSupportedException("协议失败: (L:" + protocol.PacketLength + ")");
}
var payloadlength = protocol.PacketLength - 16;
if (payloadlength == 0)
{
continue;//没有内容了
}
if (buffer.Length < payloadlength) // 不够长再申请
{
buffer = new byte[payloadlength];
}
this.dmNetStream.ReadB(buffer, 0, payloadlength);
if (protocol.Version == 2 && protocol.Action == 5) // 处理deflate消息
{
// Skip 0x78 0xDA
using (DeflateStream deflate = new DeflateStream(new MemoryStream(buffer, 2, payloadlength - 2), CompressionMode.Decompress))
{
while (deflate.Read(stableBuffer, 0, 16) > 0)
{
Parse2Protocol(stableBuffer, out protocol);
payloadlength = protocol.PacketLength - 16;
if (payloadlength == 0)
{
continue; // 没有内容了
}
if (buffer.Length < payloadlength) // 不够长再申请
{
buffer = new byte[payloadlength];
}
deflate.Read(buffer, 0, payloadlength);
ProcessDanmaku(protocol.Action, buffer, payloadlength);
}
}
}
else
{
ProcessDanmaku(protocol.Action, buffer, payloadlength);
}
void ProcessDanmaku(int action, byte[] local_buffer, int length)
{
switch (action)
{
case 3:
// var viewer = BitConverter.ToUInt32(local_buffer.Take(4).Reverse().ToArray(), 0); //观众人数
break;
case 5: //playerCommand
var json = Encoding.UTF8.GetString(local_buffer, 0, length);
try
{
ReceivedDanmaku?.Invoke(this, new ReceivedDanmakuArgs()
{
Danmaku = new DanmakuModel(json)
});
}
catch (Exception ex)
{
ExceptionHappened?.Invoke(this, ex, "处理弹幕出错");
}
break;
default:
break;
}
}
}
}
catch (Exception ex)
{
this.dmError = ex;
// logger.Error(ex);
ExceptionHappened?.Invoke(this, ex, "连接断开");
this.dmClient?.Close();
this.dmNetStream = null;
if (!(this.dmTokenSource?.IsCancellationRequested ?? true))
{
ExceptionHappened?.Invoke(this, ex, "弹幕连接被断开，将尝试重连");
Task.Run(async() =>
{
await Task.Delay(500);
await this.ConnectWithRetryAsync();
});
}
}
finally
{
PropertyChanged?.Invoke(this, new PropertyChangedEventArgs(nameof(this.IsDanmakuConnected)));
}
}
