public bool SignOut(string username)
{
RTPUDPClient.MySend(Server.Address.ToString(), Server.Port, "out " + username);
string result = RTPUDPClient.MyReceive(4505);
return(result.Equals("Removed"));
}
public IPEndPoint CallUser(string username, string myname)
{
IPEndPoint remote = FindIpPort(username);
string result = RTPUDPClient.MySend(remote.Address.ToString(), remote.Port, "CallRequest " + myname);
return(remote);
}
public bool SignIn(string username)
{
RTPUDPClient.MySend(Server.Address.ToString(), Server.Port, "set " + username);
string result = RTPUDPClient.MyReceive(4505);
if (result.Equals("Changed"))
{
return(true);
}
return(false);
}
public IPEndPoint[] CallUser(string username, string myname, string localCandidates)
{
RTPUDPClient.MySend(Server.Address.ToString(), Server.Port, "snd " + myname + " " + username + " " + localCandidates);
string result = RTPUDPClient.MyReceive(4505);
int pos = result.IndexOf(' ');
string sender = result.Substring(0, pos);
string remain = result.Substring(pos + 1);
IPEndPoint[] ret = new IPEndPoint[2];
ret[0] = ConvertTo(remain.Substring(0, remain.IndexOf(';')));
ret[1] = ConvertTo(remain.Substring(remain.IndexOf(';') + 1));
return(ret);
}
public IPEndPoint[] WaitForCall(string tosend, string uname)
{
string result = RTPUDPClient.MyReceive(4505);
int pos = result.IndexOf(' ');
string sender = result.Substring(0, pos);
string remain = result.Substring(pos + 1);
IPEndPoint[] ret = new IPEndPoint[2];
ret[0] = ConvertTo(remain.Substring(0, remain.IndexOf(';')));
ret[1] = ConvertTo(remain.Substring(remain.IndexOf(';') + 1));
RTPUDPClient.MySend(Server.Address.ToString(), Server.Port, "snd " + uname + ' ' + sender + ' ' + tosend);
return(ret);
}
public IPEndPoint StartNeg(bool IsCaller, IPEndPoint[] local, IPEndPoint[] remote)
{
if (IsCaller)
{
bool done = false;
for (int i = 0; i < 2; i++)
{
for (int j = 0; j < 2; j++)
{
if (!done)
{
IPEndPoint from = local[i];
IPEndPoint to = remote[j];
RTPUDPClient.MySend(to.Address.ToString(), to.Port, "tst " + from.ToString());
string res = RTPUDPClient.MyReceive1(4505);
if (res == "Success")
{
RTPUDPClient.MySend(to.Address.ToString(), to.Port, "fin " + from.ToString());
return(to);
}
}
}
}
return(null);
}
else
{
top:
string message = RTPUDPClient.MyReceive(4505);
string mestype = message.Substring(0, 3);
string remain = message.Substring(4);
if (mestype.Equals("fin"))
{
return(new IPEndPoint(IPAddress.Parse(remain.Substring(0, remain.IndexOf(':'))), Convert.ToInt32(remain.Substring(remain.IndexOf(':') + 1))));
}
else if (mestype.Equals("tst"))
{
IPEndPoint to = new IPEndPoint(IPAddress.Parse(remain.Substring(0, remain.IndexOf(':'))), Convert.ToInt32(remain.Substring(remain.IndexOf(':') + 1)));
RTPUDPClient.MySend(to.Address.ToString(), to.Port, "Success");
goto top;
}
}
return(null);
}
public IPEndPoint FindIpPort(string username)
{
IPEndPoint ret = new IPEndPoint(IPAddress.Parse("255.255.255.255"), 0);
RTPUDPClient.MySend(Server.Address.ToString(), Server.Port, "get " + username);
string result = RTPUDPClient.MyReceive(4505);
if (result.Equals("Failed"))
{
return(ret);
}
else
{
int pos = result.IndexOf(":");
string a = result.Substring(0, pos);
string b = result.Substring(pos + 1);
return(new IPEndPoint(IPAddress.Parse(a), Convert.ToInt32(b)));
}
}
public string Testsend(IPEndPoint remote, String data)
{
return(RTPUDPClient.MySend(remote.Address.ToString(), remote.Port, data));
}
