private void ListenCallback(IAsyncResult ar)
{
try
{
Socket listener = (Socket)ar.AsyncState;
Socket handler = listener.EndAccept(ar);
s = handler;
byte[] bytes = new byte[1024 * 5000];
int bytesRec = handler.Receive(bytes);
string currUser = Encoding.UTF8.GetString(bytes, 0, bytesRec);
connectedUsername = currUser;
convoDT = DateTime.Now;
/* Accept or decline incoming connection request */
if (!p2p.MainWindow.AppWindow.AcceptRequestBox(currUser)) // if not accepted connection
{
connectionAccepted = false;
DataProtocol declineRequest = new DataProtocol("connectionDeclined", myUsername, "null", new byte[1]);
string jsonDeclineRequest = JsonConvert.SerializeObject(declineRequest);
byte[] msg = System.Text.Encoding.UTF8.GetBytes(jsonDeclineRequest);
int bytesSent = s.Send(msg);
s.Shutdown(SocketShutdown.Both);
s.Close();
p2p.MainWindow.AppWindow.DisconnectCallback();
}
else
{
connectionAccepted = true;
HistoryDB.InitConvo(currUser);
HistoryDB.AddMessage("New conversation started", convoDT, currUser, "System");
p2p.MainWindow.AppWindow.EnableDisconnectButton();
p2p.MainWindow.AppWindow.AddMessage("System", "New conversation started", convoDT);
DataProtocol acceptRequest = new DataProtocol("connectionAccepted", myUsername, "null", new byte[1]);
string jsonAcceptRequest = JsonConvert.SerializeObject(acceptRequest);
byte[] msg = System.Text.Encoding.UTF8.GetBytes(jsonAcceptRequest);
int bytesSent = s.Send(msg);
}
String data = null;
while (connectionAccepted)
{
byte[] rbytes = new byte[1024 * 5000];
int rbytesRec = handler.Receive(rbytes);
if (handler.Connected && rbytesRec != 0)
{
data = Encoding.UTF8.GetString(rbytes, 0, rbytesRec);
DataProtocol responseMessage = JsonConvert.DeserializeObject <DataProtocol>(data);
DateTime timestamp = DateTime.Now;
if (responseMessage.Type == "disconnect")
{
DataProtocol disconnect = new DataProtocol("disconnect", myUsername, " disconnected", new byte[1]);
string jsonDisconnect = JsonConvert.SerializeObject(disconnect);
byte[] disconnectMsg = System.Text.Encoding.UTF8.GetBytes(jsonDisconnect);
int bytesSen = s.Send(disconnectMsg);
HistoryDB.AddMessage(connectedUsername + " disconnected", timestamp, connectedUsername, "System");
p2p.MainWindow.AppWindow.AddMessage("System", connectedUsername + " disconnected", convoDT);
connectionAccepted = false;
s.Shutdown(SocketShutdown.Both);
s.Close();
p2p.MainWindow.AppWindow.DisconnectCallback();
}
else if (responseMessage.Type == "Image")
{
byte[] img = responseMessage.imgByte;
HistoryDB.AddImage(img, DateTime.Now, connectedUsername);
using (var ms = new System.IO.MemoryStream(img))
{
var image = new BitmapImage();
image.BeginInit();
image.CacheOption = BitmapCacheOption.OnLoad; // here
image.StreamSource = ms;
image.DecodePixelHeight = 150;
image.DecodePixelWidth = 150;
image.EndInit();
image.Freeze();
JpegBitmapEncoder encoder = new JpegBitmapEncoder();
string photolocation = "img.jpg"; //file name
encoder.Frames.Add(BitmapFrame.Create((BitmapImage)image));
using (var filestream = new FileStream(photolocation, FileMode.Create))
encoder.Save(filestream);
p2p.MainWindow.AppWindow.DisplayImg(responseMessage.Username, timestamp, image);
}
}
else
{
HistoryDB.AddMessage(responseMessage.Message, timestamp, responseMessage.Username, responseMessage.Username);
p2p.MainWindow.AppWindow.AddMessage(responseMessage.Username, responseMessage.Message, timestamp);
}
}
else
{
break;
}
}
}
catch (SocketException se)
{
connectionAccepted = false;
s.Shutdown(SocketShutdown.Both);
s.Close();
p2p.MainWindow.AppWindow.ConnectionBroken();
p2p.MainWindow.AppWindow.DisconnectCallback();
}
}
private void ConnectCallback(IAsyncResult ar)
{
try
{
Socket connector = (Socket)ar.AsyncState;
connector.EndConnect(ar);
byte[] msg = System.Text.Encoding.UTF8.GetBytes(myUsername);
int bytesSent = s.Send(msg);
byte[] acceptDecline = new byte[1024 * 5000];
int acceptDeclineRec = connector.Receive(acceptDecline);
String data = Encoding.UTF8.GetString(acceptDecline, 0, acceptDeclineRec);
DataProtocol response = JsonConvert.DeserializeObject <DataProtocol>(data);
if (response.Type == "connectionDeclined")
{
p2p.MainWindow.AppWindow.ShowMessageBoxCLientDecline();
connectionAccepted = false;
s.Shutdown(SocketShutdown.Both);
s.Close();
p2p.MainWindow.AppWindow.DisconnectCallback();
return;
}
else
{
connectionAccepted = true;
HistoryDB.InitConvo(response.Username);
connectedUsername = response.Username;
convoDT = DateTime.Now;
HistoryDB.AddMessage("New conversation started", convoDT, response.Username, "System");
p2p.MainWindow.AppWindow.AddMessage("System", "New conversation started", convoDT);
p2p.MainWindow.AppWindow.AcceptedRequest(response.Username);
}
while (connectionAccepted)
{
byte[] bytes = new byte[1024 * 5000];
int bytesRec = connector.Receive(bytes);
if (connector.Connected && bytesRec != 0)
{
data = Encoding.UTF8.GetString(bytes, 0, bytesRec);
DataProtocol responseMessage = JsonConvert.DeserializeObject <DataProtocol>(data);
DateTime timestamp = DateTime.Now;
if (responseMessage.Type == "disconnect")
{
DataProtocol disconnect = new DataProtocol("disconnect", myUsername, " disconnected", new byte[1]);
string jsonDisconnect = JsonConvert.SerializeObject(disconnect);
byte[] disconnectMsg = System.Text.Encoding.UTF8.GetBytes(jsonDisconnect);
HistoryDB.AddMessage(connectedUsername + " disconnected", timestamp, connectedUsername, connectedUsername);
p2p.MainWindow.AppWindow.AddMessage("System", connectedUsername + " disconnected", convoDT);
int byteSent = s.Send(disconnectMsg);
connectionAccepted = false;
s.Shutdown(SocketShutdown.Both);
s.Close();
p2p.MainWindow.AppWindow.DisconnectCallback();
}
else if (responseMessage.Type == "Image")
{
byte[] img = responseMessage.imgByte;
HistoryDB.AddImage(img, DateTime.Now, connectedUsername);
using (var ms = new System.IO.MemoryStream(img))
{
var image = new BitmapImage();
image.BeginInit();
image.CacheOption = BitmapCacheOption.OnLoad; // here
image.StreamSource = ms;
image.DecodePixelHeight = 150;
image.DecodePixelWidth = 150;
image.EndInit();
image.Freeze();
JpegBitmapEncoder encoder = new JpegBitmapEncoder();
string photolocation = "tmper.jpg"; //file name
encoder.Frames.Add(BitmapFrame.Create((BitmapImage)image));
using (var filestream = new FileStream(photolocation, FileMode.Create))
encoder.Save(filestream);
p2p.MainWindow.AppWindow.DisplayImg(responseMessage.Username, timestamp, image);
}
}
else
{
HistoryDB.AddMessage(responseMessage.Message, timestamp, responseMessage.Username, responseMessage.Username);
p2p.MainWindow.AppWindow.AddMessage(responseMessage.Username, responseMessage.Message, timestamp);
}
}
else
{
break;
}
}
}
catch (SocketException se)
{
if (connectionAccepted)
{
connectionAccepted = false;
s.Shutdown(SocketShutdown.Both);
s.Close();
p2p.MainWindow.AppWindow.ConnectionBroken();
}
else
{
p2p.MainWindow.AppWindow.ShowMessage("There is no friend listening on that port!");
p2p.MainWindow.AppWindow.DisconnectCallback();
}
}
}
