private SuperQNodeResponse get_msg(Socket socket)
{
// first byte will always be a marker to verify begining of Request
byte[] data = recv(socket, 1);
if (data.Count() != 1 || data[0] != 42)
{
throw new Exception("Marker byte not read. Bad message.");
}
// next 4 bytes must always be message body length
data = recv(socket, 4);
if (data.Count() != 4)
{
throw new Exception("Msg length not read. Bad message.");
}
// convert length
int messageLength = BitConverter.ToInt32(data, 0);
// now read the rest of the message
data = recv(socket, messageLength);
// decode character data
string msg = Encoding.UTF8.GetString(data);
// build response object from string
SuperQNodeResponse response = new SuperQNodeResponse();
response.from_str(msg);
return(response);
}
public static bool superq_exists(string name, string host)
{
// build request object from string
SuperQNodeRequest request = new SuperQNodeRequest();
request.cmd = "superq_exists";
request.args = name;
SuperQNetworkClientMgr mgr = new SuperQNetworkClientMgr();
SuperQNodeResponse response = mgr.send_msg(host, request.ToString());
return(bool.Parse(response.result));
}
public static superq superq_query(superq sq, string query)
{
// build request object from string
SuperQNodeRequest request = new SuperQNodeRequest();
request.cmd = "superq_query";
request.args = sq.publicName;
request.body = query;
SuperQNetworkClientMgr mgr = new SuperQNetworkClientMgr();
SuperQNodeResponse response = mgr.send_msg(sq.host, request.ToString());
if (bool.Parse(response.result) == false)
{
throw new Exception("Not sure what to raise here yet.");
}
return(new superq(response.body, "", "", "", false, true));
}
public static superq superq_read(string name, string host)
{
// build request object from string
SuperQNodeRequest request = new SuperQNodeRequest();
request.cmd = "superq_read";
request.args = name;
SuperQNetworkClientMgr mgr = new SuperQNetworkClientMgr();
SuperQNodeResponse response = mgr.send_msg(host, request.ToString());
if (bool.Parse(response.result) == false)
{
throw new Exception(name + " does not exist.");
}
// deserialize response body into a detached superq and return
return(new superq(response.body, "", "", "", false, true));
}
private SuperQNodeResponse send_msg(string host, string msg)
{
// SSL support is not currently implemented
bool ssl = false;
int port = DEFAULT_TCP_PORT;
// 'local' is shorthand for localhost:DEFAULT_PORT
if (host == "local")
{
host = "localhost";
}
else
{
if (host.StartsWith("ssl:"))
{
string[] elems = host.Split(':');
ssl = true;
host = elems[1];
port = Int32.Parse(elems[2]);
}
else
{
try
{
string[] elems = host.Split(':');
host = elems[0];
port = Int32.Parse(elems[1]);
}
catch
{
port = DEFAULT_TCP_PORT;
}
}
}
// allocate buffer
byte[] buf = new byte[5 + msg.Count()];
// set header byte
buf[0] = 0x2A; // 42
// add message length
BitConverter.GetBytes(msg.Count()).CopyTo(buf, 1);
// add message
Encoding.UTF8.GetBytes(msg).CopyTo(buf, 5);
// open socket
TcpClient client = new TcpClient(host, port);
Socket socket = client.Client;
// send message
send(socket, buf);
// get response
SuperQNodeResponse response = get_msg(socket);
// close socket
client.Close();
return(response);
}
