| public handleQueryPacket ( byte dataIn, String clientIP, String token, String username, String host ) : byte[] | ||
| dataIn | byte | |
| clientIP | String | |
| token | String | |
| username | String | |
| host | String | |
| 리턴 | byte[] | |
/*
* starts the listerner
*/
public void startInternal(String username, String token, String host)
{
Mysql x = new Mysql(0, m_writer);
// set initial state
m_state = State.NOT_CONNECTED;
// start socket and wait for incoming client connection // add here multi client stuff
m_socket.Start();
TcpClient client = m_socket.AcceptTcpClient();
NetworkStream ns = client.GetStream();
StreamWriter sw = new StreamWriter(ns);
sw.AutoFlush = true;
if (!ns.CanRead)
{
Console.WriteLine("Info: Stream no readable....");
return;
}
var pi = ns.GetType().GetProperty("Socket", BindingFlags.NonPublic | BindingFlags.Instance);
var socketIP = ((Socket)pi.GetValue(ns, null)).RemoteEndPoint.ToString();
Console.WriteLine("Connecting client: " + socketIP);
// send the server greeting (static for now)
handleNotConnected(x, ns, client);
ns = client.GetStream();
while(socketCheck(ns))
{
Console.WriteLine("Info: Read " + readBytes + " bytes....");
// if not connected, do a straight forward "send a greeting packet"
if (m_state == State.NOT_CONNECTED)
{
Console.WriteLine("Info: Mysqlpot in state NOT CONNECTED, not possible state, error");
}
else if (m_state == State.GREETING_PACKET_SEND)
{
Console.WriteLine("Info: Mysqlpot in state GREETING_PACKET_SEND");
x.handleLoginPacket(data, socketIP, token, username, host);
m_state = State.LOGIN_OK;
Console.WriteLine("Info: Login packet retrieved, now trying to generate answer packet...");
byte[] okPacket = x.generateOKPacket(x.getPacketNumber(data) + 1, 1); // packetnumber, affeceted lines
Console.WriteLine("Info: Now writing OK packet back on the line..");
sw.Write (System.Text.Encoding.UTF8.GetString(okPacket).ToCharArray());
ns = client.GetStream();
}
else if (m_state == State.LOGIN_OK)
{
Console.WriteLine("Info: Mysqlpot in state LOGIN_OK");
byte[] queryString = x.handleQueryPacket(data, socketIP, token, username, host);
byte[] answer = x.getAnswerPacket(queryString, x.getPacketNumber(data) + 1);
if (answer != null)
{
ns.Write(answer, 0, answer.Length);
// sw.Write (System.Text.Encoding.UTF8.GetString(answer).ToCharArray());
ns = client.GetStream();
}
else
{
Console.WriteLine("Info: Detected no suitable answer for the SQL query");
}
}
else
{
Console.WriteLine("Info: Mysqlpot in unknown state");
break;
}
}
Console.WriteLine("Error: Ausbruch aus dem while loop");
ns.Close();
client.Close();
m_socket.Stop();
m_state = State.NOT_CONNECTED;
}
/*
* starts the listerner
*/
public void startInternal(String username, String token, String host)
{
Mysql x = new Mysql(0, m_writer);
// set initial state
m_state = State.NOT_CONNECTED;
// start socket and wait for incoming client connection // add here multi client stuff
m_socket.Start();
TcpClient client = m_socket.AcceptTcpClient();
NetworkStream ns = client.GetStream();
StreamWriter sw = new StreamWriter(ns);
sw.AutoFlush = true;
if (!ns.CanRead)
{
Console.WriteLine("Info: Stream no readable....");
return;
}
var pi = ns.GetType().GetProperty("Socket", BindingFlags.NonPublic | BindingFlags.Instance);
var socketIP = ((Socket)pi.GetValue(ns, null)).RemoteEndPoint.ToString();
Console.WriteLine("Connecting client: " + socketIP);
// send the server greeting (static for now)
handleNotConnected(x, ns, client);
ns = client.GetStream();
while (socketCheck(ns))
{
Console.WriteLine("Info: Read " + readBytes + " bytes....");
// if not connected, do a straight forward "send a greeting packet"
if (m_state == State.NOT_CONNECTED)
{
Console.WriteLine("Info: Mysqlpot in state NOT CONNECTED, not possible state, error");
}
else if (m_state == State.GREETING_PACKET_SEND)
{
Console.WriteLine("Info: Mysqlpot in state GREETING_PACKET_SEND");
x.handleLoginPacket(data, socketIP, token, username, host);
m_state = State.LOGIN_OK;
Console.WriteLine("Info: Login packet retrieved, now trying to generate answer packet...");
byte[] okPacket = x.generateOKPacket(x.getPacketNumber(data) + 1, 1); // packetnumber, affeceted lines
Console.WriteLine("Info: Now writing OK packet back on the line..");
sw.Write(System.Text.Encoding.UTF8.GetString(okPacket).ToCharArray());
ns = client.GetStream();
}
else if (m_state == State.LOGIN_OK)
{
Console.WriteLine("Info: Mysqlpot in state LOGIN_OK");
byte[] queryString = x.handleQueryPacket(data, socketIP, token, username, host);
byte[] answer = x.getAnswerPacket(queryString, x.getPacketNumber(data) + 1);
if (answer != null)
{
ns.Write(answer, 0, answer.Length);
// sw.Write (System.Text.Encoding.UTF8.GetString(answer).ToCharArray());
ns = client.GetStream();
}
else
{
Console.WriteLine("Info: Detected no suitable answer for the SQL query");
}
}
else
{
Console.WriteLine("Info: Mysqlpot in unknown state");
break;
}
}
Console.WriteLine("Error: Ausbruch aus dem while loop");
ns.Close();
client.Close();
m_socket.Stop();
m_state = State.NOT_CONNECTED;
} // start()