public async static Task SendFileNoCrypt(string fileName, byte[] fileContents, string peer)
{
try
{
progressIndeterminate();
PreSendRequestNoCrypt preSend = new PreSendRequestNoCrypt();
preSend.FileName = fileName;
var preSendSocket = await sendRequestToPeer(peer, Strings.REQUEST_TYPE_PRE_SEND_NOCRYPT, JSONHandling.SerializeObject(preSend), timeout: 0);
var response = await preSendSocket.Recv();
if (response == Strings.RESPONSE_NOT_PAIRED)
{
if (!(await Pair(peer))) return;
await SendFile(fileName, fileContents, peer);
return;
}
else if (response == Strings.RESPONSE_REJECT)
{
await DialogBoxes.ShowMessageBox("File rejected");
progressStop();
return;
}
File sentFile = new File(fileName, fileContents);
await sendRequestToPeer(peer, Strings.REQUEST_TYPE_SEND_NOCRYPT, JSONHandling.SerializeObject(sentFile), true);
progressStop();
}
catch (FileTransferException error)
{
DialogBoxes.ShowMessageBox(error.Message);
}
catch (Exception error)
{
DialogBoxes.ShowMessageBox("Unknown error: " + error.Message);
}
finally
{
progressStop();
}
}
public async static Task SendFile(string fileName, byte[] fileContents, string peer)
{
try
{
progressIndeterminate();
Peer selectedPeer = peerMap[peer];
PreSendRequest preSend = new PreSendRequest();
String filePrivateKey = DiffieHellman.generate_DH_Private();
String filePublicKey = DiffieHellman.calculate_DH_Public(filePrivateKey);
byte[] aesKey = DiffieHellman.calculate_DH_AES(selectedPeer.PublicKey, filePrivateKey);
preSend.FileName = fileName;
preSend.key = new PublicKey(filePublicKey, selectedPeer.SharedPassword);
var preSendSocket = await sendRequestToPeer(peer, Strings.REQUEST_TYPE_PRE_SEND, JSONHandling.SerializeObject(preSend), timeout:0);
var response = await preSendSocket.Recv();
if (response == Strings.RESPONSE_NOT_PAIRED)
{
if (!(await Pair(peer))) return;
await SendFile(fileName, fileContents, peer);
return;
}
else if (response == Strings.RESPONSE_REJECT)
{
await DialogBoxes.ShowMessageBox("File rejected");
progressStop();
return;
}
File sentFile = new File(fileName, fileContents, aesKey);
await sendRequestToPeer(peer, Strings.REQUEST_TYPE_SEND, JSONHandling.SerializeObject(sentFile), true);
progressStop();
}
catch (FileTransferException error)
{
DialogBoxes.ShowMessageBox(error.Message);
}
catch (Exception error)
{
DialogBoxes.ShowMessageBox("Unknown error: " + error.Message);
}
finally
{
progressStop();
}
}
