public static byte[] GetClipboardBytes(ClipboardPacket p)
{
byte[] res = new byte[8 * 1024];
int i = 0;
res[i++] = (byte)p.type;
for (int j = sizeof(long); j > 0; j--)
{
res[i++] = (byte)(p.totalLength >> (8 * ((sizeof(long) - j))));
}
byte[] s = Encoding.Unicode.GetBytes(p.name);
for (int j = 0; j < 256; j++)
{
res[i++] = (j < s.Length) ? s[j] : (byte)0;
}
for (int j = sizeof(int); j > 0; j--)
{
res[i++] = (byte)(p.length >> (8 * ((sizeof(int) - j))));
}
for (int j = 0; j < p.length; j++)
{
res[i++] = p.data[j];
}
return(res);
}
public static void SendBitmap(System.Windows.Media.Imaging.BitmapSource b)
{
ClipboardPacket packet = new ClipboardPacket();
packet.type = BITMAP_TYPE;
MemoryStream ms = new MemoryStream();
System.Windows.Media.Imaging.BmpBitmapEncoder encoder = new System.Windows.Media.Imaging.BmpBitmapEncoder();
encoder.Frames.Add(System.Windows.Media.Imaging.BitmapFrame.Create(b));
encoder.Save(ms);
byte[] getBitmapData = ms.ToArray();
packet.length = BUFFER_SIZE;
packet.totalLength = ms.Length;
packet.name = String.Empty;
long bytesToSend = ms.Length;
while (bytesToSend > 0)
{
if (bytesToSend < BUFFER_SIZE)
{
packet.length = (int)bytesToSend;
}
packet.data = new byte[BUFFER_SIZE];
Array.Copy(getBitmapData, ms.Length - bytesToSend, packet.data, 0, packet.length);
bytesToSend -= packet.length;
byte[] toSend = Serialization.GetClipboardBytes(packet);
Utility.SendBytes(socket, toSend, toSend.Length, SocketFlags.None);
}
ms.Close();
}
public static void SendPathDropList(string path)
{
ClipboardPacket packet = new ClipboardPacket();
packet.type = SETDROPLIST_TYPE;
packet.data = System.Text.Encoding.Unicode.GetBytes(path);
packet.length = packet.data.Length;
packet.totalLength = 0;
packet.name = String.Empty;
byte[] toSend = Serialization.GetClipboardBytes(packet);
Console.WriteLine("Text: sending path" + path);
Utility.SendBytes(socket, toSend, toSend.Length, SocketFlags.None);
}
public static void SendNewFolder(string folder, ref string rootDir)
{
ClipboardPacket packet = new ClipboardPacket();
packet.type = DIRECTORY_TYPE;
packet.name = folder.Substring(rootDir.Length);
packet.length = 0;
packet.totalLength = 0;
byte[] toSend = Serialization.GetClipboardBytes(packet);
Console.WriteLine("Folder: sending {0} bytes to server...", toSend.Length);
Utility.SendBytes(socket, toSend, toSend.Length, SocketFlags.None);
}
public static void SendUpdateRequest()
{
/** Richiedo un aggiornamento della mia clipboard. Il server mi invierà il contenuto della sua clipboard **/
ClipboardPacket packet = new ClipboardPacket();
packet.data = new byte[0];
packet.length = packet.data.Length;
packet.totalLength = 0;
packet.name = String.Empty;
packet.type = UPDATE_TYPE;
byte[] toSend = Serialization.GetClipboardBytes(packet);
Console.WriteLine("Sending update packet");
Utility.SendBytes(socket, toSend, toSend.Length, SocketFlags.None);
}
public static void SendText(string text)
{
ClipboardPacket packet = new ClipboardPacket();
packet.type = TEXT_TYPE;
packet.data = System.Text.Encoding.Unicode.GetBytes(text);
packet.length = packet.data.Length;
packet.totalLength = 0;
packet.name = String.Empty;
byte[] toSend = Serialization.GetClipboardBytes(packet);
Console.WriteLine("Text: sending {0} bytes to server...", toSend.Length);
Utility.SendBytes(socket, toSend, toSend.Length, SocketFlags.None);
}
public static ClipboardPacket FromClipboardBytes(byte[] arr)
{
ClipboardPacket p = new ClipboardPacket();
int i = 0;
p.type = arr[i++];
p.totalLength = BitConverter.ToInt64(arr, i);
i += 8;
p.name = Encoding.Unicode.GetString(arr, i, 256).TrimEnd('\0'); //remove all string terminator characters
i += 256;
p.length = BitConverter.ToInt32(arr, i);
i += 4;
p.data = new byte[p.length];
for (int j = 0; j < p.length; j++, i++)
{
p.data[j] = arr[i];
}
return(p);
}
public static void SendFile(string fileToSend, ref string rootDir)
{
int readBytes = 0;
long bytesToSend = new FileInfo(fileToSend).Length;
ClipboardPacket packet = new ClipboardPacket();
packet.type = FILE_TYPE;
String filename = fileToSend.Substring(rootDir.Length);
packet.name = filename;
packet.totalLength = bytesToSend;
FileStream fileStream = new FileStream(fileToSend, FileMode.Open);
byte[] buffer = new byte[BUFFER_SIZE];
try
{
do
{
readBytes = fileStream.Read(buffer, 0, BUFFER_SIZE);
bytesToSend -= readBytes;
packet.length = readBytes;
packet.data = new byte[BUFFER_SIZE];
Array.Copy(buffer, packet.data, BUFFER_SIZE);
byte[] toSend = Serialization.GetClipboardBytes(packet);
Utility.SendBytes(socket, toSend, toSend.Length, SocketFlags.None);
}while (bytesToSend > 0);
Console.WriteLine("trasferimento terminato");
}
catch (Exception)
{
Console.WriteLine("Errore nel trasferimento");
}
finally
{
fileStream.Close();
}
}
private static void listenClipboard()
{
try
{
listener.Listen(0);
client = listener.Accept();
}
catch (Exception e)
{
listener.Close();
return;
}
byte[] buffer = new byte[BYTES_PER_TRANSFER];
while (true)
{
try
{
ReceivePacket(ref client, ref buffer);
ClipboardPacket packet = Serialization.FromClipboardBytes(buffer);
switch ((ClipboardPacketType)packet.type)
{
case ClipboardPacketType.TEXT:
Clipboard.SetText(Encoding.Unicode.GetString(packet.data));
break;
case ClipboardPacketType.DIRECTORY:
Clipboard.Clear();
string dir = TEMP_DIR + packet.name;
Directory.CreateDirectory(dir);
break;
case ClipboardPacketType.FILE:
string file = TEMP_DIR + packet.name;
lock (objLock)
{
while (currentDownload != null && !packet.name.Equals(currentFileName))
{
Monitor.Wait(objLock);
}
if (currentDownload == null)
{
currentFileName = packet.name;
currentDownload = new AsynchFileReceiver(file, packet.totalLength);
Console.WriteLine("START " + file);
currentDownload.Start();
}
currentDownload.newFragmentAvailable(ref packet.data);
}
break;
case ClipboardPacketType.BITMAP:
lock (objLock)
{
if (bitmapStream == null)
{
bitmapStream = new MemoryStream((int)packet.totalLength);
}
bitmapStream.Write(packet.data, 0, packet.data.Length);
if (bitmapStream.Position == packet.totalLength)
{
var bitmap = new BitmapImage();
bitmap.BeginInit();
bitmap.StreamSource = bitmapStream;
bitmap.CacheOption = BitmapCacheOption.OnLoad;
bitmap.EndInit();
bitmap.Freeze();
Clipboard.SetImage(bitmap);
bitmapStream.Dispose();
bitmapStream = null;
}
}
break;
case ClipboardPacketType.UPDATE:
SendClipboardNotice(Clipboard.GetDataObject());
break;
case ClipboardPacketType.SET_DROPLIST:
string fileNames = Encoding.Unicode.GetString(packet.data);
string[] filesArray = fileNames.Split('|');
StringCollection sc = new StringCollection();
foreach (string s in filesArray)
{
sc.Add(TEMP_DIR + s);
}
try
{
Thread t = new Thread(new ThreadStart(() =>
{
Clipboard.SetFileDropList(sc);
}
));
t.SetApartmentState(ApartmentState.STA);
t.Start();
}
catch (Exception e)
{
}
break;
}
}
catch (SocketException)
{
break;
}
catch (ObjectDisposedException)
{
break;
}
catch (Exception ex)
{
Console.WriteLine(ex.Message);
break;
}
}
client.Close();
listener.Close();
}
