private void action_private_message()
{
var s = _readdata.Split(':');
var name = "null_name";
var temp = "";
if (s.Length >= 3)
{
name = s[2].Trim();
}
if (s.Length >= 4)
{
temp = s[3].Trim();
}
TcpClient t = null;
if (_chatserver.FindUserRoom(name) != 0)
{
t = (TcpClient)_chatserver.ClientConnections[name.ToUpper()];
}
if (t != null)
{
_chatserver.Write(t.GetStream(),
ChatProtocolValues.NORMAL_MSG(Nickname, temp));
_chatserver.Write(_client.GetStream(),
ChatProtocolValues.NORMAL_MSG(Nickname, temp));
}
else
{
_chatserver.Write(_client.GetStream(),
ChatProtocolValues.USER_NOT_FOUND_MSG(name));
}
}
//SEND PIC
private void action_send_pic()
{
string[] s = readdata.Split(':');
string name = "";
//format is
//:send pic:<target>
if (s.Length == 3)
{
name = s[2];
}
//Locate the target
TcpClient t = null;
if (chatserver.FindUserRoom(name) != 0)
{
t = (TcpClient)chatserver.ClientConnections[name.ToUpper()];
}
//If target is found
if ((t != null))
{
//Inform the sender(client) to send the picture
chatserver.Write(client.GetStream(), ChatProtocolValues.SEND_PIC_MSG);
//Find out the number of byte to read from sender
string snumbytes = chatserver.Read(client.GetStream());
int numbytes = int.Parse(snumbytes);
//read the bytes
byte[] b = chatserver.ReadBinary(client.GetStream(), numbytes);
if (b == null)
{
chatserver.Write(client.GetStream(),
"server> Transmission Error");
return;
}
//To store the data in a jpg file
//name convention is <sender>_<target>.jpg
FileStream f = new FileStream(nickname + "_" + name + ".jpg", FileMode.Create);
f.Write(b, 0, b.Length);
f.Close();
//Inform the target that there is a picture from sender
chatserver.Write(t.GetStream(),
ChatProtocolValues.PIC_FROM_MSG(nickname, name));
//Inform the sender that server had received the picture
chatserver.Write(client.GetStream(),
ChatProtocolValues.PIC_SEND_MSG(nickname));
}
else
{
//If target is not found inform sender
chatserver.Write(client.GetStream(),
ChatProtocolValues.USER_NOT_FOUND_MSG(name));
}
}
private void action_send_media()
{
var s = _readdata.Split(':');
var name = "";
if (s.Length == 3)
{
name = s[2];
}
TcpClient t = null;
if (_chatserver.FindUserRoom(name) != 0)
{
t = (TcpClient)_chatserver.ClientConnections[name.ToUpper()];
}
if (t != null)
{
_chatserver.Write(_client.GetStream(), ChatProtocolValues.SendMediaMsg);
var ext = _chatserver.Read(_client.GetStream());
var snumbytes = _chatserver.Read(_client.GetStream());
var numbytes = int.Parse(snumbytes);
if (numbytes == 0)
{
_chatserver.Write(_client.GetStream(),
"server> No media file to send");
return;
}
if (numbytes > 51200000)
{
_chatserver.Write(_client.GetStream(),
"server> Media File is larger than 5 MB");
return;
}
var b = _chatserver.ReadBinary(_client.GetStream(), numbytes);
if (b == null)
{
_chatserver.Write(_client.GetStream(),
"server> Transmission Error");
return;
}
var fext = new FileStream(Nickname + "_" + name, FileMode.Create);
var unicode = new UnicodeEncoding();
var bytes = unicode.GetBytes(ext);
fext.Write(bytes, 0, bytes.Length);
fext.Close();
var f = new FileStream(Nickname + "_" + name + "." + ext, FileMode.Create);
f.Write(b, 0, b.Length);
f.Close();
_chatserver.Write(t.GetStream(),
ChatProtocolValues.MEDIA_FROM_MSG(Nickname, name));
_chatserver.Write(_client.GetStream(),
ChatProtocolValues.MEDIA_SEND_MSG(Nickname));
}
else
{
_chatserver.Write(_client.GetStream(),
ChatProtocolValues.USER_NOT_FOUND_MSG(name));
}
}
private void action_send_pic()
{
var s = _readdata.Split(':');
var name = "";
if (s.Length == 3)
{
name = s[2];
}
TcpClient t = null;
if (_chatserver.FindUserRoom(name) != 0)
{
t = (TcpClient)_chatserver.ClientConnections[name.ToUpper()];
}
if (t != null)
{
_chatserver.Write(_client.GetStream(), ChatProtocolValues.SendPicMsg);
var snumbytes = _chatserver.Read(_client.GetStream());
var numbytes = int.Parse(snumbytes);
var b = _chatserver.ReadBinary(_client.GetStream(), numbytes);
if (b == null)
{
_chatserver.Write(_client.GetStream(),
"server> Transmission Error");
return;
}
var f = new FileStream(Nickname + "_" + name + ".jpg", FileMode.Create);
f.Write(b, 0, b.Length);
f.Close();
_chatserver.Write(t.GetStream(),
ChatProtocolValues.PIC_FROM_MSG(Nickname, name));
_chatserver.Write(_client.GetStream(),
ChatProtocolValues.PIC_SEND_MSG(Nickname));
}
else
{
_chatserver.Write(_client.GetStream(),
ChatProtocolValues.USER_NOT_FOUND_MSG(name));
}
}
//PRIVATE MESSAGE
private void action_private_message()
{
string[] s = readdata.Split(':');
string name = "null_name"; //give a default dummy name
string temp = ""; //hold the message
//format is
//:private:<target>:<message>
if (s.Length >= 3)
{
name = s[2].Trim();
}
if (s.Length >= 4)
{
temp = s[3].Trim();
}
TcpClient t = null;
if (chatserver.FindUserRoom(name) != 0)
{
t = (TcpClient)chatserver.ClientConnections[name.ToUpper()];
}
if (t != null)
{
//to target
chatserver.Write(t.GetStream(),
ChatProtocolValues.NORMAL_MSG(nickname, temp));
//to inform sender
chatserver.Write(client.GetStream(),
ChatProtocolValues.NORMAL_MSG(nickname, temp));
}
else
{
chatserver.Write(client.GetStream(),
ChatProtocolValues.USER_NOT_FOUND_MSG(name));
}
}
//SEND MEDIA
private void action_send_media()
{
string[] s = readdata.Split(':');
string name = "";
//format is
//:send media:<target>
if (s.Length == 3)
{
name = s[2];
}
//Locate the target
TcpClient t = null;
if (chatserver.FindUserRoom(name) != 0)
{
t = (TcpClient)chatserver.ClientConnections[name.ToUpper()];
}
//If target is found
if ((t != null))
{
//Inform the sender(client) to send the media
chatserver.Write(client.GetStream(), ChatProtocolValues.SEND_MEDIA_MSG);
string ext = chatserver.Read(client.GetStream());
//Find out the number of byte to read from sender
string snumbytes = chatserver.Read(client.GetStream());
int numbytes = int.Parse(snumbytes);
if (numbytes == 0)
{
chatserver.Write(client.GetStream(),
"server> No media file to send");
return;
}
//must be less than 5 MB
if (numbytes > 51200000)
{
chatserver.Write(client.GetStream(),
"server> Media File is larger than 5 MB");
return;
}
//read the bytes
byte[] b = chatserver.ReadBinary(client.GetStream(), numbytes);
if (b == null)
{
chatserver.Write(client.GetStream(),
"server> Transmission Error");
return;
}
//To store the data in a file
//name convention is <sender>_<target>.ext
//create a file to hold the extension
FileStream fext = new FileStream(nickname + "_" + name, FileMode.Create);
UnicodeEncoding Unicode = new UnicodeEncoding();
byte[] bytes = Unicode.GetBytes(ext);
fext.Write(bytes, 0, bytes.Length);
fext.Close();
FileStream f = new FileStream(nickname + "_" + name + "." + ext, FileMode.Create);
f.Write(b, 0, b.Length);
f.Close();
//Inform the target that there is a file from sender
chatserver.Write(t.GetStream(),
ChatProtocolValues.MEDIA_FROM_MSG(nickname, name));
//Inform the sender that server had received the media
chatserver.Write(client.GetStream(),
ChatProtocolValues.MEDIA_SEND_MSG(nickname));
}
else
{
//If target is not found inform sender
chatserver.Write(client.GetStream(),
ChatProtocolValues.USER_NOT_FOUND_MSG(name));
}
}
