private void action_get_media()
{
var s = _readdata.Split(':');
var sender = "";
var ext = "";
if (s.Length >= 3)
{
sender = s[2];
}
if (s.Length >= 4)
{
ext = s[3];
}
if (File.Exists(sender + "_" + Nickname))
{
var f = new FileStream(sender + "_" + Nickname, FileMode.Open);
var fi = new FileInfo(sender + "_" + Nickname);
var b = new byte[fi.Length];
f.Read(b, 0, b.Length);
f.Close();
var unicode = new UnicodeEncoding();
var charCount = unicode.GetCharCount(b, 0, b.Length);
var chars = new char[charCount];
unicode.GetChars(b, 0, b.Length, chars, 0);
ext = new string(chars);
}
var medianame = sender + "_" + Nickname + "." + ext;
if (!File.Exists(medianame))
{
_chatserver.Write(_client.GetStream(),
ChatProtocolValues.MEDIA_NOT_FOUND_MSG(medianame));
}
else
{
var f = new FileStream(medianame, FileMode.Open);
var fi = new FileInfo(medianame);
var b = new byte[fi.Length];
f.Read(b, 0, b.Length);
f.Close();
_chatserver.Write(_client.GetStream(),
ChatProtocolValues.GetMediaMsg);
_chatserver.Write(_client.GetStream(), ext);
_chatserver.Write(_client.GetStream(), "" + b.Length);
_chatserver.WriteBinary(_client.GetStream(), b);
_chatserver.Write(_client.GetStream(),
ChatProtocolValues.MediaSendAckMsg);
TcpClient t = null;
if (_chatserver.FindUserRoom(sender) != 0)
{
t = (TcpClient)_chatserver.ClientConnections[sender.ToUpper()];
}
if (t != null)
{
_chatserver.Write(t.GetStream(),
ChatProtocolValues.GOTTEN_MEDIA_MSG(Nickname));
}
}
}
//GET MEDIA
private void action_get_media()
{
string[] s = readdata.Split(':');
string sender = "";
string medianame = "";
string ext = "";
//format is
//:get media:<sender>:ext
if (s.Length >= 3)
{
sender = s[2];
}
if (s.Length >= 4)
{
ext = s[3];
}
//format of saved jpg file is
//<sender>_<target>.jpg
//In this case the current user is the target
//get the extension form the file
if (File.Exists(sender + "_" + nickname))
{
FileStream f = new FileStream(sender + "_" + nickname, FileMode.Open);
FileInfo fi = new FileInfo(sender + "_" + nickname);
byte[] b = new byte[fi.Length];
f.Read(b, 0, b.Length);
f.Close();
UnicodeEncoding Unicode = new UnicodeEncoding();
int charCount = Unicode.GetCharCount(b, 0, b.Length);
char[] chars = new Char[charCount];
Unicode.GetChars(b, 0, b.Length, chars, 0);
ext = new string(chars);
}
medianame = sender + "_" + nickname + "." + ext;
//Check for existence of file
if (!File.Exists(medianame))
{
chatserver.Write(client.GetStream(),
ChatProtocolValues.MEDIA_NOT_FOUND_MSG(medianame));
}
else
{
//Create a file stream
FileStream f = new FileStream(medianame, FileMode.Open);
//To get the size of the file for purpose of memory allocation
FileInfo fi = new FileInfo(medianame);
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 media
chatserver.Write(client.GetStream(),
ChatProtocolValues.GET_MEDIA_MSG);
//Inform the client of the extension
//chatserver.Write(client.GetStream(),ext);
//Inform the client of the ext
chatserver.Write(client.GetStream(), ext);
//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.MEDIA_SEND_ACK_MSG);
//Locate the sender of the media
TcpClient t = null;
if (chatserver.FindUserRoom(sender) != 0)
{
t = (TcpClient)chatserver.ClientConnections[sender.ToUpper()];
}
//Inform the sender that the target has gotten the media
if (t != null)
{
chatserver.Write(t.GetStream(),
ChatProtocolValues.GOTTEN_MEDIA_MSG(nickname));
}
}
}