/// <summary>
/// 接收数据事件
/// </summary>
/// <param name="ar"></param>
private void OnRecvData(IAsyncResult ar)
{
int recv = 0;
try
{
recv = m_tcpclient.GetStream().EndRead(ar);
}
catch (Exception e)
{
Logger.Trace(e);
recv = 0;
}
if (recv <= 0)
{
// connection has been closed
Logger.Trace("OnClose");
OnClose(ar);
return;
}
if (m_rdpclient == null)
{
Logger.Trace("OnClose");
OnClose(null);
return;
}
try
{
NetworkStream stream = m_rdpclient.GetStream();
if (stream == null)
{
Logger.Trace("OnClose");
OnClose(null);
return;
}
stream.Write(m_buffer, 0, recv);
m_qos.DataIn(recv);
}
catch (Exception e)
{
Logger.Trace(e);
}
// continue listening for tcp datagram packets
try
{
m_tcpclient.GetStream().BeginRead(m_buffer, 0, m_buffer.Length, OnRecvData, this);
}
catch (Exception e)
{
Logger.Trace(e);
OnClose(ar);
}
}
/// <summary>
/// 接收数据事件
/// </summary>
/// <param name="ar"></param>
private void OnRecvData(IAsyncResult ar)
{
int recv = 0;
try
{
recv = m_tcpclient.GetStream().EndRead(ar);
}
catch (Exception e)
{
Logger.Trace(e);
recv = 0;
}
if (recv <= 0)
{
// connection has been closed
Logger.Trace("OnClose");
OnClose(ar);
return;
}
if (m_start == 0)
{
int cmd = 0;
byte[] data = m_protocol.ParseCmd(m_buffer, recv, ref cmd);
if (cmd != (int)Protocol.CMD.C2C_RDPSTART || data == null || data.Length == 0)
{
Logger.Trace("OnClose");
OnClose(ar);
return;
}
string sdata = System.Text.UTF8Encoding.UTF8.GetString(data);
if (string.IsNullOrEmpty(sdata))
{
Logger.Trace("OnClose");
OnClose(ar);
return;
}
string[] rdata = sdata.Split(new char[] { '|' }, 3);
if (rdata == null || rdata.Length != 3)
{
Logger.Trace("OnClose");
OnClose(ar);
return;
}
int.TryParse(rdata[0], out m_rdpviewtype);
if (m_pwdcode != rdata[2])
{
Logger.Trace("OnClose");
data = m_protocol.C2C_RdpStartRes("PWDERROR");
WriteData(data);
OnClose(ar);
return;
}
if (!ConnectRdp(m_rdpport))
{
Logger.Trace("OnClose");
data = m_protocol.C2C_RdpStartRes("RDPERROR");
WriteData(data);
OnClose(ar);
return;
}
m_start = 1;
data = m_protocol.C2C_RdpStartRes("OK");
WriteData(data);
}
else
{
try
{
NetworkStream stream = m_tcprdp.GetStream();
if (stream == null)
{
Logger.Trace("OnClose");
OnClose(null);
return;
}
stream.Write(m_buffer, 0, recv);
m_qos.DataIn(recv);
}
catch (Exception e)
{
Logger.Trace(e);
}
}
// continue listening for tcp datagram packets
try
{
m_tcpclient.GetStream().BeginRead(m_buffer, 0, m_buffer.Length, OnRecvData, this);
}
catch (Exception e)
{
Logger.Trace(e);
OnClose(ar);
}
}