public async Task ConnectAsync(string url, Option?option = null)
{
if (option.HasValue)
{
parser = new DanMuPa(option.Value);
}
using (tcpClient = new TcpClient())
{
// 获得roomid
var httpClient = new HttpClient();
var bodyText = await httpClient.GetStringAsync(url);
var reg = new Regex(@"var\s+ROOMID\s+=\s+(\w+);");
var match = reg.Match(bodyText);
var roomId = match.Groups[1].Value;
// 获得tcp服务器地址
var xmlText = await httpClient.GetStringAsync($"http://live.bilibili.com/api/player?id=cid:{roomId}");
var xml = XElement.Parse($"<root>{xmlText}</root>");
var host = xml.Element("dm_server").Value;
var port = int.Parse(xml.Element("dm_port").Value);
// 链接房间
var data = OpenMsg(roomId);
Console.WriteLine($"Connect to Room {roomId} on {host}:{port}");
// 连接服务器
await tcpClient.ConnectAsync(host, port);
using (var stream = tcpClient.GetStream())
{
await stream.WriteAsync(data, 0, data.Length);
heartbeat = Task.Run(async() =>
{
var at = DateTimeOffset.Now.ToUnixTimeSeconds();
Byte[] heartBeat = HeartbeatMsg();
while (true)
{
if (tcpClient.Connected && stream.CanWrite)
{
SpinWait.SpinUntil(() => DateTimeOffset.Now.ToUnixTimeSeconds() - at >= 29);
await stream.WriteAsync(heartBeat, 0, heartBeat.Length);
at = DateTimeOffset.Now.ToUnixTimeSeconds();
Debug.WriteLine("Heartbeat");
}
else
{
Debug.WriteLine("Disconnect");
return;
}
}
});
reciever = Task.Run(async() =>
{
var buffer = new Byte[4];
var at = DateTimeOffset.Now.ToUnixTimeMilliseconds();
while (true)
{
if (tcpClient.Available > 0 && stream.CanRead)
{
buffer = new Byte[4];
await stream.ReadAsync(buffer, 0, 4);
var MsgLength = IPAddress.NetworkToHostOrder(BitConverter.ToInt32(buffer, 0)) - 4;
buffer = new Byte[MsgLength];
var recievedByte = 0;
while (recievedByte < MsgLength)
{
recievedByte += await stream.ReadAsync(buffer, recievedByte, MsgLength - recievedByte);
}
var respText = parser.ParsePackage(buffer);
if (!string.IsNullOrWhiteSpace(respText))
{
Console.WriteLine(respText);
}
Debug.WriteLine(BitConverter.ToString(buffer));
}
else
{
SpinWait.SpinUntil(() => DateTimeOffset.Now.ToUnixTimeMilliseconds() - at >= 300);
at = DateTimeOffset.Now.ToUnixTimeMilliseconds();
}
}
});
reciever.Wait();
}
}
}
public DanMuJi()
{
parser = new DanMuPa();
}
