/*
* Function executed by the clip receiver thread.
*/
private void clipReceiverFunction()
{
message msg;
clipServer = new TcpListener(IPAddress.Any, 9998); /* Socket listening for clients connections. */
clipServer.Start(); /* The clip server starts */
byte[] data;
while (enableClipServer) /* This boolean is modified by the main window when the user perform a click on the StopServerButton */
{
try
{
using (clipReceiver = clipServer.AcceptTcpClient())
{
/* Here we are receiving the message with the clipboard data type that we are going to receive */
data = SocketCommunication.receiveBufferFromSocket(clipReceiver);
msg = SocketCommunication.rawDeserialize <message>(data);
/* If the message is not a remote paste message, there is an error, and we must throw an exception. */
if (msg.messType != messageType.REMOTE_PASTE)
{
throw new Exception("Wrong message format!");
}
switch (msg.cinf.ct)
{
case clipboardType.TEXT: /* We are going to receive text */
data = SocketCommunication.receiveChunks(clipReceiver, msg.cinf.size); /* Here we set the clipboard with the text received, encoding the received bytes with unicode format. */
Invoke(new txtSet(Clipboard.SetText), Encoding.Unicode.GetString(data)); /* Here we set the clipboard with the received text */
break;
case clipboardType.IMAGE: /* We are going to receive an Image */
data = SocketCommunication.receiveChunks(clipReceiver, msg.cinf.size); /*Function that receives data, saving chuncks of 1024 Bytes*/
Image i = (Image)SocketCommunication.deserialize(data); /* Received bytes deserialization. The received object is of type Image*/
Invoke(new imgSet(Clipboard.SetImage), i); /* Here We set the clipboard with the received Image */
break;
case clipboardType.FILES: /* FILES case. To sent multiple files, we have to compress all files in a zip Archive. Therefore, now we must unzip the received archive */
String path = SocketCommunication.receiveFile(clipReceiver, msg.cinf.size); /* This function returns the path of the received archive */
String dirName = Path.Combine(path, "temp"); /* Here we create the path to the folder that will contain all files */
if (!Directory.Exists(dirName)) /*If this folder doesn't exist...*/
{
Directory.CreateDirectory(Path.Combine(dirName)); /* we have to create it! */
}
else
{
Directory.Delete(dirName, true); /* The directory already exists, and probably contains files...*/
Directory.CreateDirectory(dirName); /* so we have to delete the directory and to recreate it, in order to save memory. */
}
ZipFile.ExtractToDirectory(Path.Combine(path, "receivedArchive.zip"), dirName); /* We unzip the archive in the folder "ReceiveTemp" */
string[] sc = Directory.GetFileSystemEntries(dirName); /*This functions returns a string array with the filenames of each element in the new folder*/
StringCollection strColl = new StringCollection(); /* Clipboard.SetFileDropList requires a StringCollection object */
strColl.AddRange(sc); /* Here we add to strColl all strings contained in sc */
Invoke(new fileSet(Clipboard.SetFileDropList), strColl); /* We have to call this functions with invoke in order to set the main thread as clipboard owner */
break;
case clipboardType.AUDIO:
data = SocketCommunication.receiveChunks(clipReceiver, msg.cinf.size); /*Function that receives data, saving chuncks of 1024 Bytes*/
Stream audio = (Stream)SocketCommunication.deserialize(data); /* Received bytes deserialization. The received object is of type Stream*/
Invoke(new audioSet(Clipboard.SetAudio), audio); /* Here We set the clipboard with the received Audio stream */
break;
}
}
}
catch (SocketException)
{
continue;
}
catch (IOException)
{
continue;
}
catch (ObjectDisposedException)
{
continue;
}
catch (Exception e)
{
MessageBox.Show(e.Message);
}
}
}
/*
* Function that receives the clipboard data and sets the client clipboard with the received data.
*/
public void remoteCopy(TcpClient clipClient)
{
message msg;
/*
* Here we receive the struct that contains the data type that is going to arrive.
*/
byte[] data = SocketCommunication.receiveBufferFromSocket(clipClient);
msg = SocketCommunication.rawDeserialize <message>(data);
/*
* If we do not receive a messageType == remote_copy, there is an error!
*/
if (msg.messType != messageType.REMOTE_COPY)
{
throw new Exception("Formato messaggio copia errato.");
}
switch (msg.cinf.ct)
{
case clipboardType.TEXT: /*The clipboard data is text*/
data = SocketCommunication.receiveChunks(clipClient, msg.cinf.size); /*Function that receives data, saving chuncks of 1024 Bytes*/
/* We have to call this functions with an invoke in order to set the main thread as clipboard owner */
Invoke(new txtSet(Clipboard.SetText), Encoding.Unicode.GetString(data)); /* Here we set the clipboard with the text received, encoding the received bytes with unicode format. */
break;
case clipboardType.IMAGE: /* The clipboard data is an Image */
data = SocketCommunication.receiveChunks(clipClient, msg.cinf.size); /*Function that receives data, saving chuncks of 1024 Bytes*/
Image i = (Image)SocketCommunication.deserialize(data); /* Received bytes deserialization. The received object is of type Image*/
Invoke(new imgSet(Clipboard.SetImage), i); /* Here We set the clipboard with the received Image */
break;
case clipboardType.FILES: /* FILES case. To sent multiple files, we have to compress all files in a zip Archive. Therefore, now we must unzip the received archive */
String path = SocketCommunication.receiveFile(clipClient, msg.cinf.size); /* This function returns the path of the received archive */
String dirName = Path.Combine(path, "ReceiveTemp"); /* Here we create the path to the folder that will contain all files */
if (!Directory.Exists(dirName)) /*If this folder doesn't exist...*/
{
Directory.CreateDirectory(dirName); /* we have to create it! */
}
else
{
Directory.Delete(dirName, true); /* The directory already exists, and probably contains files...*/
Directory.CreateDirectory(dirName); /* so we have to delete the directory and to recreate it, in order to save memory. */
}
ZipFile.ExtractToDirectory(Path.Combine(path, "receivedArchive.zip"), dirName); /* We unzip the archive in the folder "ReceiveTemp" */
File.Delete(Path.Combine(path, "receivedArchive.zip")); /*Then we delete the received zip, in order to save memory.*/
string[] sc = Directory.GetFileSystemEntries(dirName); /*This functions returns a string array with the filenames of each element in the new folder*/
StringCollection strColl = new StringCollection(); /* Clipboard.SetFileDropList requires a StringCollection object */
strColl.AddRange(sc); /* Here we add to strColl all strings contained in sc */
Invoke(new fileSet(Clipboard.SetFileDropList), strColl); /* We have to call this functions with an invoke in order to set the main thread as clipboard owner */
break;
case clipboardType.AUDIO: /* The clipboard data is an audio stream. */
data = SocketCommunication.receiveChunks(clipClient, msg.cinf.size); /*Function that receives data, saving chuncks of 1024 Bytes*/
Stream audio = (Stream)SocketCommunication.deserialize(data); /* Received bytes deserialization. The received object is of type Stream*/
Invoke(new audioSet(Clipboard.SetAudio), audio); /* Here We set the clipboard with the received Audio stream */
break;
case clipboardType.NO_VALID_DATA: /*If the clipboard doesn't contain a valid data format, we receive this message.*/
data = SocketCommunication.receiveChunks(clipClient, msg.cinf.size);
break;
}
}