private void HandleException(Exception e)
{
Logger.LogException(e);
formFailPopup = new FormPopup(e.Message);
formFailPopup.ShowDialog();
//System.Diagnostics.Process.Start(Application.ExecutablePath);
toRestart = true;
this.Close();
}
private void Cipher(int cryptOption)
{//todo: use properties of a file to determine which encryption used on the file
CipherBase cipher;
string inputFileContents = "";
string outputFileContents = "";
string filePath = "";
string fileName = "";
string key = "";
string cipherChoice = "";
try
{
PathParser.ParseFilePath(inputFileTextBox.Text, out filePath, out fileName);
key = keyTextBox.Text;
cipherChoice = cipherComboBox.Text;
inputFileContents = File.ReadAllText(filePath + fileName);
}
catch (Exception e)
{
HandleException(e);
}
switch (cipherChoice)
{
case nameof(CaesarCipher): //todo find a better way
int parsedKeyInt;
if (!int.TryParse(key, out parsedKeyInt))
{
HandleException(new Exception(KEY_INVALID));
}
cipher = new CaesarCipher(parsedKeyInt);
break;
case nameof(ColumnarTransposition):
cipher = new ColumnarTransposition(key);
break;
case nameof(XorCipher):
char parsedKeyChar;
if (!char.TryParse(key, out parsedKeyChar))
{
HandleException(new Exception(KEY_INVALID));
}
cipher = new XorCipher(parsedKeyChar);
break;
default:
cipher = new CaesarCipher(0);
HandleException(new Exception(CIPHER_INVALID));
break;
}
if (!CheckFileExtension(cryptOption, fileName))
{
HandleException(new Exception(FILE_EXT_INVALID));
}
switch (cryptOption)
{
case (int)CryptOptions.Encrypt:
outputFileContents = cipher.Encrypt(inputFileContents);
File.WriteAllText(filePath + fileName + ENCRYPT_EXTENSION, outputFileContents);
formSuccessPopup = new FormPopup(ENCRYPT_SUCCESS);
break;
case (int)CryptOptions.Decrypt:
outputFileContents = cipher.Decrypt(inputFileContents);
File.WriteAllText(filePath + fileName.Substring(0, fileName.LastIndexOf(".")), outputFileContents);
formSuccessPopup = new FormPopup(DECRYPT_SUCCESS);
break;
default:
formSuccessPopup = new FormPopup("");
HandleException(new Exception(CIPHER_INVALID));
break;
}
formSuccessPopup.ShowDialog();
}
