/// <summary>
/// 开启连接
/// </summary>
/// <returns></returns>
public async Task <bool> ConnectAsync()
{
_roomId = await RoomUtil.GetLongRoomId(_shotRoomId);
if (_roomId == 0)
{
return(false);
}
var token = await RoomUtil.GetRoomTokenByShortRoomId(_shotRoomId);
if (token.Equals(""))
{
return(false);
}
if (!await RoomUtil.ConnectRoomByShortRoomId(_tcpClient, _shotRoomId))
{
return(false);
}
_roomStream = _tcpClient.GetStream();
if (!await SendJoinMsgAsync(token))
{
//这是错误处理的代码
return(false);
}
var headBuffer = new byte[ProtocolHeadLength];
await _roomStream.ReadAsync(headBuffer, 0, headBuffer.Length);
DanmuHead danmuHead = DanmuHead.BufferToDanmuHead(headBuffer);
if (danmuHead.HeaderLength != ProtocolHeadLength || danmuHead.Action != 8)
{
//如果头信息的长度不是16,或者Action的的值不是8 (服务器接受认证包后回应的第一个数据)
//这是错误处理的代码
return(false);
}
var dataBuffer = new byte[danmuHead.PacketLength - danmuHead.HeaderLength];
await _roomStream.ReadAsync(dataBuffer, 0, danmuHead.MessageLength());
var s = Encoding.Default.GetString(dataBuffer);
var data = JObject.Parse(s);
if (int.Parse(data["code"].ToString()) != 0)
{
return(false);
}
_connected = true;
//循环发送心跳信息
#pragma warning disable 4014
SendHeartbeatLoop();
#pragma warning restore 4014
return(true);
}
/// <summary>
/// 循环读取消息,禁止重复调用
/// </summary>
/// <returns></returns>
public async Task ReadMessageLoop()
{
while (_connected)
{
var headBuffer = new byte[ProtocolHeadLength];
//先读取一次头信息
await _roomStream.ReadAsync(headBuffer, 0, ProtocolHeadLength);
//解析头信息
DanmuHead danmuHead = DanmuHead.BufferToDanmuHead(headBuffer);
//判断协议
if (danmuHead.HeaderLength != ProtocolHeadLength)
{
continue;
}
//初始化一个放数据的byte数组
byte[] dataBuffer;
if (danmuHead.Action == 3)
{
//给服务器发送心跳信息后的回应信息,所带的数据是直播间的观看人数(人气值)
dataBuffer = new byte[danmuHead.MessageLength()];
await _roomStream.ReadAsync(dataBuffer, 0, danmuHead.MessageLength());
var audiences = EndianBitConverter.EndianBitConverter.BigEndian.ToInt32(dataBuffer, 0);
_messageHandler.AudiencesHandlerAsync(audiences);
continue;
}
string tmpData;
JObject json = null;
if (danmuHead.Action == 5 && danmuHead.Version == ProtocolVersion)
{
//有效负载为礼物、弹幕、公告等内容数据
//读取数据放入缓冲区
dataBuffer = new byte[danmuHead.MessageLength()];
await _roomStream.ReadAsync(dataBuffer, 0, danmuHead.MessageLength());
//之后把数据放入到内存流
string jsonStr;
using (var ms = new MemoryStream(dataBuffer, 2, danmuHead.MessageLength() - 2))
{
//使用内存流生成解压流(压缩流)
var deflate = new DeflateStream(ms, CompressionMode.Decompress);
var headerbuffer = new byte[ProtocolHeadLength];
try
{
while (true)
{
await deflate.ReadAsync(headerbuffer, 0, ProtocolHeadLength);
danmuHead = DanmuHead.BufferToDanmuHead(headerbuffer);
var messageBuffer = new byte[danmuHead.MessageLength()];
var readLength = await deflate.ReadAsync(messageBuffer, 0, danmuHead.MessageLength());
jsonStr = Encoding.UTF8.GetString(messageBuffer, 0, danmuHead.MessageLength());
if (readLength == 0)
{
break;
}
json = JObject.Parse(jsonStr);
_messageDispatcher.DispatchAsync(json, _messageHandler);
}
continue;
}
catch (Exception e)
{
//读数据超出长度
Debug.WriteLine(e);
throw;
}
}
}
dataBuffer = new byte[danmuHead.MessageLength()];
await _roomStream.ReadAsync(dataBuffer, 0, danmuHead.MessageLength());
tmpData = Encoding.UTF8.GetString(dataBuffer);
try
{
json = JObject.Parse(tmpData);
}
catch (Exception e)
{
Debug.WriteLine(e);
throw e;
}
if (!"DANMU_MSG".Equals(json["cmd"].ToString()) && !"SEND_GIFT".Equals(json["cmd"].ToString()))
{
_messageDispatcher.DispatchAsync(json, _messageHandler);
}
}
}
/// <summary>
/// 开启连接
/// </summary>
/// <returns></returns>
public async Task <bool> ConnectAsync()
{
var tmpData =
JObject.Parse(
await _httpClient.GetStringAsync(
$"https://api.live.bilibili.com/room/v1/Room/room_init?id={_shotRoomId}"));
if (int.Parse(tmpData["code"].ToString()) != 0)
{
return(false);
}
_roomId = int.Parse(tmpData["data"]["room_id"].ToString());
tmpData = JObject.Parse(await _httpClient.GetStringAsync(
$"https://api.live.bilibili.com/room/v1/Danmu/getConf?room_id={_roomId}&platform=pc&player=web"));
//连接的令牌
var token = tmpData["data"]["token"].ToString();
//解析域名,拿取IP地址,用于连接
var chatHost = tmpData["data"]["host"].ToString();
var ips = await Dns.GetHostAddressesAsync(chatHost);
//连接的端口
var chatPort = int.Parse(tmpData["data"]["port"].ToString());
Random random = new Random();
//随机一个选择域名解析出来的IP,负载均衡
await _tcpClient.ConnectAsync(ips[random.Next(ips.Length)], chatPort);
if (!_tcpClient.Connected)
{
//这是错误处理的代码
return(false);
}
_roomStream = _tcpClient.GetStream();
//判断能不能写入数据
if (!_roomStream.CanWrite)
{
//这是错误处理的代码
return(false);
}
if (!await SendJoinMsgAsync(token))
{
//这是错误处理的代码
return(false);
}
var headBuffer = new byte[ProtocolHeadLength];
await _roomStream.ReadAsync(headBuffer, 0, headBuffer.Length);
DanmuHead danmuHead = DanmuHead.BufferToDanmuHead(headBuffer);
if (danmuHead.HeaderLength != ProtocolHeadLength || danmuHead.Action != 8)
{
//如果头信息的长度不是16,或者Action的的值不是8 (服务器接受认证包后回应的第一个数据)
//这是错误处理的代码
return(false);
}
var dataBuffer = new byte[danmuHead.PacketLength - danmuHead.HeaderLength];
await _roomStream.ReadAsync(dataBuffer, 0, danmuHead.MessageLength());
var s = Encoding.Default.GetString(dataBuffer);
var data = JObject.Parse(s);
if (int.Parse(data["code"].ToString()) != 0)
{
return(false);
}
_connected = true;
//循环发送心跳信息
#pragma warning disable 4014
SendHeartbeatLoop();
#pragma warning restore 4014
return(true);
}