private Stream Decode(System.IO.Stream inStream)
{
Stream outStream = inStream;
string inFile = Path.GetTempFileName();
string outFile = Path.ChangeExtension(inFile, "txt");
try
{
FileStreamReadWrite.DumpStreamToFile(inStream, inFile);
GnuPGWrapper GPG = new GnuPGWrapper(_gnupgbindir);
GnuPGCommand GPGCommand = GPG.Command;
GPGCommand.Command = Commands.Decrypt;
GPGCommand.InputFile = inFile;
GPGCommand.OutputFile = outFile;
GPGCommand.Passphrase = _passphrase;
// TODO: support encrypted passphrase, no passphrase is a security risk
GPG.Execute(null);
outStream = FileStreamReadWrite.ReadFileToMemoryStream(outFile);
}
catch (Exception ex)
{
System.Diagnostics.Debug.WriteLine(ex);
}
finally
{
if (File.Exists(inFile))
{
File.Delete(inFile);
}
if (File.Exists(outFile))
{
File.Delete(outFile);
}
}
return(outStream);
}
private Stream Encode(Stream inStream)
{
Stream outStream = inStream;
string inFile = Path.GetTempFileName();
string outFile = Path.ChangeExtension(inFile, "gpg");
try
{
FileStreamReadWrite.DumpStreamToFile(inStream, inFile);
GnuPGWrapper GPG = new GnuPGWrapper(_gnupgbindir);
GnuPGCommand GPGCommand = GPG.Command;
GPGCommand.Command = Commands.Encrypt;
GPGCommand.Recipient = _recipient;
GPGCommand.Armor = true;
GPGCommand.InputFile = inFile;
GPGCommand.OutputFile = outFile;
GPG.Execute(null);
outStream = FileStreamReadWrite.ReadFileToMemoryStream(outFile);
}
catch (Exception ex)
{
System.Diagnostics.Debug.WriteLine(ex);
}
finally
{
if (File.Exists(inFile))
{
File.Delete(inFile);
}
if (File.Exists(outFile))
{
File.Delete(outFile);
}
}
return(outStream);
}