//methods
/// <summary>
/// Method to encrypt a file using PGP via the GPG command line.
/// </summary>
/// <param name="sourcePath">File to be encrypted.</param>
/// <param name="destinationPath">Path to encrypted file.</param>
/// <param name="encryptionKey">Key to use for encryption. Use a recipient name in the GPG key store.</param>
/// <returns></returns>
public FileEncryptorResult CreateEncryptedFile(string sourcePath,
string destinationPath,
string encryptionKey)
{
FileEncryptorResult result = FileEncryptorResult.FileStatusUnknown;
if (String.IsNullOrEmpty(sourcePath))
{
throw new ArgumentNullException("The name of file that needs to be encrypted cannot be null or empty.");
}
if (String.IsNullOrEmpty(destinationPath))
{
throw new ArgumentNullException("The name of the destination file for the encrypted data cannot be null or empty.");
}
result = RunGPGEncryptor(sourcePath, destinationPath, encryptionKey);
return(result);
}
private FileEncryptorResult RunGPGEncryptor(string sourcePath,
string destinationPath,
string encryptionKey)
{
FileEncryptorResult result = FileEncryptorResult.FileStatusUnknown;
Process gpgEncryptorProcess = new Process();
try
{
_processExitCode = -1;
_processMessages = string.Empty;
this.Source = sourcePath;
this.Destination = destinationPath;
this.EncryptionKey = encryptionKey;
gpgEncryptorProcess.StartInfo.WorkingDirectory = _gpgWorkingFolder;
gpgEncryptorProcess.StartInfo.FileName = _gpgAppPath;
gpgEncryptorProcess.StartInfo.Arguments = BuildEncryptionArguments();
this.ProcessCommandLine = GetCommandLine(gpgEncryptorProcess.StartInfo.Arguments);
gpgEncryptorProcess.StartInfo.CreateNoWindow = true;
gpgEncryptorProcess.StartInfo.WindowStyle = ProcessWindowStyle.Hidden;
gpgEncryptorProcess.StartInfo.UseShellExecute = false;
gpgEncryptorProcess.StartInfo.RedirectStandardOutput = true;
gpgEncryptorProcess.StartInfo.RedirectStandardError = true;
gpgEncryptorProcess.Start();
_msg.Length = 0;
_msg.Append(gpgEncryptorProcess.StandardOutput.ReadToEnd());
_msg.Append(" ");
_msg.Append(gpgEncryptorProcess.StandardError.ReadToEnd());
_processMessages = _msg.ToString();
gpgEncryptorProcess.WaitForExit();
_processExitCode = gpgEncryptorProcess.ExitCode;
if (this.ProcessExitCode != 0)
{
result = FileEncryptorResult.EncryptionFailed;
}
else
{
result = FileEncryptorResult.EncryptedFileCreated;
}
}
catch (System.Exception ex)
{
result = FileEncryptorResult.EncryptionFailed;
_msg.Length = 0;
_msg.Append("Error in RunGPGEncryptor method.\r\n");
_msg.Append(AppMessages.FormatErrorMessage(ex));
if (this.ProcessCommandLine.Length > 0)
{
_msg.Append("\r\nCommand line: ");
_msg.Append(this.ProcessCommandLine);
}
if (this.ProcessMessages.Length > 0)
{
_msg.Append("\r\nProcess messages: ");
_msg.Append(this.ProcessMessages);
}
throw new System.Exception(_msg.ToString());
}
finally
{
;
}
return(result);
}
