//GET PIC
private void action_get_pic()
{
string[] s = readdata.Split(':');
string sender = "";
string picname = "";
//format is
//:get pic:<sender>
if (s.Length == 3)
{
sender = s[2];
}
//format of saved jpg file is
//<sender>_<target>.jpg
//In this case the current user is the target
picname = sender + "_" + nickname + ".jpg";
//Check for existence of file
if (!File.Exists(picname))
{
chatserver.Write(client.GetStream(),
ChatProtocolValues.PIC_NOT_FOUND_MSG(picname));
}
else
{
//Create a file stream
FileStream f = new FileStream(picname, FileMode.Open);
//To get the size of the file for purpose of memory allocation
FileInfo fi = new FileInfo(picname);
byte[] b = new byte[fi.Length];
//Read the content of the file and close
f.Read(b, 0, b.Length);
f.Close();
//Inform the client to get the pic
chatserver.Write(client.GetStream(),
ChatProtocolValues.GET_PIC_MSG);
//Inform the client of number of bytes
chatserver.Write(client.GetStream(), "" + b.Length);
//Send the binary data
chatserver.WriteBinary(client.GetStream(), b);
//Inform the client that all binary data has been send
chatserver.Write(client.GetStream(),
ChatProtocolValues.PIC_SEND_ACK_MSG);
//Locate the sender of the picture
TcpClient t = null;
if (chatserver.FindUserRoom(sender) != 0)
{
t = (TcpClient)chatserver.ClientConnections[sender.ToUpper()];
}
//Inform the sender that the target has gotten the picture
if (t != null)
{
chatserver.Write(t.GetStream(),
ChatProtocolValues.GOTTEN_PIC_MSG(nickname));
}
}
}
private void action_get_pic()
{
var s = _readdata.Split(':');
var sender = "";
if (s.Length == 3)
{
sender = s[2];
}
var picname = sender + "_" + Nickname + ".jpg";
if (!File.Exists(picname))
{
_chatserver.Write(_client.GetStream(),
ChatProtocolValues.PIC_NOT_FOUND_MSG(picname));
}
else
{
var f = new FileStream(picname, FileMode.Open);
var fi = new FileInfo(picname);
var b = new byte[fi.Length];
f.Read(b, 0, b.Length);
f.Close();
_chatserver.Write(_client.GetStream(),
ChatProtocolValues.GetPicMsg);
_chatserver.Write(_client.GetStream(), "" + b.Length);
_chatserver.WriteBinary(_client.GetStream(), b);
_chatserver.Write(_client.GetStream(),
ChatProtocolValues.PicSendAckMsg);
TcpClient t = null;
if (_chatserver.FindUserRoom(sender) != 0)
{
t = (TcpClient)_chatserver.ClientConnections[sender.ToUpper()];
}
if (t != null)
{
_chatserver.Write(t.GetStream(),
ChatProtocolValues.GOTTEN_PIC_MSG(Nickname));
}
}
}