public void Connect(TCPAddress address)
{
IPEndPoint ipe = new IPEndPoint(address.IP, address.Port);
client = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp);
client.Connect(ipe);
}
/// <summary>
/// 从收到的 route_bytes 中获取需与下级服务器通信相关内容
/// 本方法不产生 socket 通信
/// </summary>
/// <param name="recv_bytes">接收到来自client的路由数据</param>
/// <param name="address">返回代理下级服务器地址</param>
/// <param name="is_aim_proxy">代理下级服务器是否为代理 (决定socket_ep包头)</param>
/// <param name="bytes_to_send">需向下级代理发送的内容</param>
private void GetAimInfo(byte[] recv_bytes, out TCPAddress address, out bool is_aim_proxy, out byte[] bytes_to_send)
{
if (recv_bytes[0] == 1)
{
byte count = recv_bytes[1];
if (count == 0)
{
address = TCPAddress.FromBytes(recv_bytes, 2);
is_aim_proxy = false;
bytes_to_send = new byte[recv_bytes.Length - 8];
Array.Copy(recv_bytes, 8, bytes_to_send, 0, bytes_to_send.Length);
}
else
{
address = TCPAddress.FromBytes(recv_bytes, 8);
is_aim_proxy = true;
bytes_to_send = new byte[recv_bytes.Length - 6];
Array.Copy(recv_bytes, bytes_to_send, 8);
Array.Copy(recv_bytes, 14, bytes_to_send, 8, bytes_to_send.Length - 8);
bytes_to_send[1] = (byte)(count - 1);
}
return;
}
address = new TCPAddress();
is_aim_proxy = false;
bytes_to_send = new byte[0];
}
public void Connect(TCPAddress address, int send_timeout, int recv_timeout)
{
IPEndPoint ipe = new IPEndPoint(address.IP, address.Port);
client = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp);
client.SendTimeout = send_timeout;
client.ReceiveTimeout = recv_timeout;
client.Connect(ipe);
}
/// <summary>
/// 解析UI字符串至 ConnectionRoute 对象
/// 字符串格式:
/// server : IPx or IPx-name_x
/// proxy : [empty] or IP1-name_1;IP2;IP3-name_3;......
/// 解析规则:
/// IPn-name_n 解析为两个 RouteNode, 按顺序分别为 IPn 和 IPn-name_n
/// IPn 解析为一个 RouteNode, 其 Name 为 ""
/// server 若为挂在反向代理的server, 则代理列表最后一级为反向代理服务器IP
/// 解析规则保证 ProxyRoute[0].Name == "" (若存在), 即一定不是反向代理
/// </summary>
/// <param name="server_string"></param>
/// <param name="proxy_string"></param>
/// <returns></returns>
public static ConnectionRoute FromString(string server_string, string proxy_string, int default_server_port = 12138, int default_proxy_port = 12139)
{
ConnectionRoute cr = new ConnectionRoute();
if (server_string.Contains("-"))
{
string[] strs = server_string.Split('-');
if (!strs[0].Contains(':'))
{
strs[0] += ":" + default_server_port.ToString();
}
cr.ServerAddress = new RouteNode(strs[0], strs[1]);
cr.ProxyRoute.Add(new RouteNode(strs[0]));
}
else
{
if (!server_string.Contains(':'))
{
server_string += ":" + default_server_port.ToString();
}
cr.ServerAddress = new RouteNode(TCPAddress.FromString(server_string));
}
if (!string.IsNullOrEmpty(proxy_string))
{
string[] proxies = proxy_string.Split(';');
int idx = 0;
foreach (string proxy0 in proxies)
{
if (proxy0.Contains("-"))
{
string[] proxy0_split = proxy0.Split('-');
if (!proxy0_split[0].Contains(':'))
{
proxy0_split[0] += ":" + default_proxy_port.ToString();
}
cr.ProxyRoute.Insert(idx, new RouteNode(proxy0_split[0]));
idx++;
cr.ProxyRoute.Insert(idx, new RouteNode(proxy0_split[0], proxy0_split[1]));
idx++;
}
else
{
string proxy_str = proxy0;
if (!proxy_str.Contains(':'))
{
proxy_str += ":" + default_proxy_port.ToString();
}
cr.ProxyRoute.Insert(idx, new RouteNode(proxy0));
idx++;
}
}
}
return(cr);
}
public static TCPAddress FromBytes(byte[] bytes, ref int index)
{
TCPAddress address = new TCPAddress
{
IP = new IPAddress(new byte[4] {
bytes[index + 0], bytes[index + 1], bytes[index + 2], bytes[index + 3]
}),
Port = (((int)bytes[index + 4]) << 8) + (int)bytes[index + 5]
};
index += 6;
return(address);
}
public void ConnectWithTimeout(TCPAddress address, int timeout)
{
cth.Reset();
IPEndPoint ipe = new IPEndPoint(address.IP, address.Port);
client = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp);
client.BeginConnect(ipe, asyncResult =>
{
try
{
cth.IsSuccess = false;
if (asyncResult.AsyncState is Socket s)
{
s.EndConnect(asyncResult);
cth.IsSuccess = true;
}
}
catch (Exception ex)
{
cth.IsSuccess = false;
cth.ConnectException = ex;
}
finally
{
cth.Set();
}
}, client);
if (cth.WaitOne(timeout, false))
{
if (cth.IsSuccess)
{
return;
}
else
{
throw cth.ConnectException;
}
}
else
{
client.Close();
throw new TimeoutException("Connection timeout");
}
}
public override bool Equals(object obj)
{
TCPAddress addr = obj as TCPAddress;
return(this.IP.Equals(addr.IP) && this.Port.Equals(addr.Port));
}
public SocketClient(TCPAddress tcpAddress)
{
HostAddress = tcpAddress.Copy();
this.GetHeaderBytesFunc = this.GetHeaderBytesWithProxy;
}