// Decrypt
private async void DecryptButton_Click(object sender, RoutedEventArgs e)
{
DisableUIs();
int nQuestions = _decMpeFileInfo._nQuestions;
string[] passwords = new string[nQuestions];
for (int i = 0; i < passwords.Length; ++i)
{
var passwordTxt = _decPasswordTxts[i];
if ((bool)DecTrimChk.IsChecked)
{
passwordTxt.Text = passwordTxt.Text.Trim();
}
passwords[i] = passwordTxt.Text;
}
// output dir
string outputDir = DecOutputDirTxt.Text;
if ((bool)DecCreateDirChk.IsChecked)
{
string encryptedFilePath = DecEncryptedFileTxt.Text;
if (encryptedFilePath.Contains(@"\"))
{
encryptedFilePath = encryptedFilePath.Substring(encryptedFilePath.LastIndexOf(@"\") + 1);
}
if (encryptedFilePath.Contains("."))
{
encryptedFilePath = encryptedFilePath.Substring(0, encryptedFilePath.IndexOf('.'));
}
outputDir = System.IO.Path.Combine(outputDir, encryptedFilePath);
}
for (int i = 0; i < passwords.Length; ++i)
{
passwords[i] = convertPassword(passwords[i], (AppConst.MPE_Flag)_decMpeFileInfo._flag);
}
var currentCursor = this.Cursor;
try
{
this.Cursor = Cursors.Wait;
var p = new Progress <string>(ShowProgress);
bool result = await Task <bool> .Run(() => { return(MPECore.Decrypt(_decMpeFileInfo, passwords, outputDir, p)); });
this.Cursor = currentCursor;
if (result)
{
var message = ResourceService.Current.getMessage("MsgIEndDecryption"); // Decryption is complete.
MessageBox.Show(message, "Succeed", MessageBoxButton.OK, MessageBoxImage.Information, MessageBoxResult.OK);
}
else
{
var message = ResourceService.Current.getMessage("MsgIPasswordIncorrect"); // Password is incorrect.
MessageBox.Show(message, "Error", MessageBoxButton.OK, MessageBoxImage.Exclamation, MessageBoxResult.OK);
}
}
catch (Exception ex)
{
var message = "Error. detail:" + ex.Message;
MessageBox.Show(message, "Error", MessageBoxButton.OK, MessageBoxImage.Error, MessageBoxResult.OK);
this.Cursor = currentCursor;
}
EnableUIs();
}
internal void openDecMpeFile(bool isShowMessage)
{
if (File.Exists(DecEncryptedFileTxt.Text) == false)
{
return;
}
var currentCursor = this.Cursor;
this.Cursor = Cursors.Wait;
string message;
var decMPEfileInfo = MPECore.readHeader(DecEncryptedFileTxt.Text);
if (decMPEfileInfo._errorDetailMessage != "")
{
if (isShowMessage)
{
message = ResourceService.Current.getMessage("MsgETargetNotMPE") + decMPEfileInfo._errorDetailMessage; // The specified file is not a Multiple Passwords Encrypted file.\r\n\r\nDetailed information:
MessageBox.Show(message, "Error", MessageBoxButton.OK, MessageBoxImage.Error, MessageBoxResult.OK);
}
goto EXIT;
}
int nQuestions = decMPEfileInfo._nQuestions;
int nRequiredPasswords = decMPEfileInfo._nRequiredPasswords;
// create UI
_decPasswordTxts = new TextBox[nQuestions];
setFlag(decMPEfileInfo._flag);
DecryptBtn.IsEnabled = true;
DecNumRequiredPasswordsCmb.Items.Clear();
DecNumRequiredPasswordsCmb.Items.Add(nRequiredPasswords);
DecNumRequiredPasswordsCmb.SelectedIndex = 0;
for (int i = 0; i < nQuestions; ++i)
{
var question = decMPEfileInfo._decQuestions[i];
var border = new Border();
border.BorderThickness = TH_BOADER;
border.BorderBrush = Brushes.Gray;
border.Margin = TH_MARGIN_T5_R5;
var scrollViewer = new ScrollViewer();
scrollViewer.HorizontalScrollBarVisibility = ScrollBarVisibility.Auto;
scrollViewer.VerticalScrollBarVisibility = ScrollBarVisibility.Disabled;
scrollViewer.Padding = TH_PADDING_5;
border.Child = scrollViewer;
var questionStackPanel = new StackPanel();
questionStackPanel.Orientation = Orientation.Vertical;
scrollViewer.Content = questionStackPanel;
var hintStackPanel = new StackPanel();
hintStackPanel.Orientation = Orientation.Horizontal;
questionStackPanel.Children.Add(hintStackPanel);
var hintLabel = new Label();
hintLabel.Content = "Hint" + (i + 1) + ":";
hintLabel.Width = HEADER_WIDTH;
hintStackPanel.Children.Add(hintLabel);
var hintTextBox = new TextBox();
hintTextBox.MinWidth = HINT_WIDTH;
hintTextBox.IsEnabled = false;
hintStackPanel.Children.Add(hintTextBox);
hintTextBox.Text = question.hint;
var questionRemoveButton = new Button();
questionRemoveButton.Content = "X";
questionRemoveButton.Width = HINT_REMOVE_BUTTON_WIDTH;
questionRemoveButton.Margin = TH_MARGIN_L10;
questionRemoveButton.IsEnabled = false;
hintStackPanel.Children.Add(questionRemoveButton);
var passwordStackPanel = new StackPanel();
passwordStackPanel.Orientation = Orientation.Horizontal;
passwordStackPanel.Margin = TH_MARGIN_T5;
questionStackPanel.Children.Add(passwordStackPanel);
var passwordLabel = new Label();
passwordLabel.Content = "Password:"******"" && isShowMessage)
{
message = ResourceService.Current.getMessage("MsgWMPEInvalidFormat") + decMPEfileInfo._warningDetailMessage; // The specified file may not be decrypted properly.\r\n\r\nDetailed information:
MessageBox.Show(message, "Warning", MessageBoxButton.OK, MessageBoxImage.Warning, MessageBoxResult.OK);
}
_decMpeFileInfo = decMPEfileInfo;
EXIT:
this.Cursor = currentCursor;
}
// Encrypt
private async void EncryptButton_Click(object sender, RoutedEventArgs e)
{
DisableUIs();
// input file check
string message;
if (EncFileNameLb.Items.Count == 0)
{
message = ResourceService.Current.getMessage("MsgETargetNotSpecified"); // Encryption target file is not specified.
MessageBox.Show(message, "Error", MessageBoxButton.OK, MessageBoxImage.Error, MessageBoxResult.OK);
goto EXIT;
}
if (EncOutputFileTxt.Text.Trim() == "")
{
message = ResourceService.Current.getMessage("MsgEOutputNotSpecified"); // Output file is not specified.
MessageBox.Show(message, "Error", MessageBoxButton.OK, MessageBoxImage.Error, MessageBoxResult.OK);
goto EXIT;
}
var fileList = new List <string>();
var dirList = new List <string>();
var notExistFileList = new List <string>();
var encTargetList = new List <string>();
foreach (var item in EncFileNameLb.Items)
{
string pathFile = item.ToString();
if (File.Exists(pathFile))
{
fileList.Add(System.IO.Path.GetFileName(pathFile));
encTargetList.Add(pathFile);
}
else if (Directory.Exists(pathFile))
{
var dir = new DirectoryInfo(pathFile);
dirList.Add(dir.Name);
encTargetList.Add(pathFile);
}
else
{
notExistFileList.Add(pathFile);
}
}
if (fileList.Count != fileList.Distinct().Count() || dirList.Count != dirList.Distinct().Count())
{
message = ResourceService.Current.getMessage("MsgETargetDuplicated"); // Encryption is impossible due to duplicate file name or folder name.
MessageBox.Show(message, "Error", MessageBoxButton.OK, MessageBoxImage.Error, MessageBoxResult.OK);
goto EXIT;
}
if (notExistFileList.Count > 0)
{
message = ResourceService.Current.getMessage("MsgWFileNotExisted"); // The following file does not exist.
foreach (var s in notExistFileList)
{
message += "\r\n\t" + s;
}
if (EncFileNameLb.Items.Count == notExistFileList.Count)
{
message += "\r\n\r\n" + ResourceService.Current.getMessage("MsgETargetNotExisted"); // There is no file to encrypt.
MessageBox.Show(message, "Error", MessageBoxButton.OK, MessageBoxImage.Error, MessageBoxResult.OK);
goto EXIT;
}
else
{
message += "\r\n\r\n" + ResourceService.Current.getMessage("MsgCEncryptOnlyExistFile"); // Encrypt with existing files only?
if (MessageBox.Show(message, "Confirmation", MessageBoxButton.YesNo, MessageBoxImage.Exclamation, MessageBoxResult.No) == MessageBoxResult.No)
{
goto EXIT;
}
}
}
// input password check
int nQuestions = _encQuestionList.Count;
int nRequiredPasswords = int.Parse(EncNumRequiredPasswordsCmb.Text);
if ((bool)EncTrimChk.IsChecked)
{
foreach (var question in _encQuestionList)
{
foreach (var passwordText in question._passwordStackPanel.Children.OfType <TextBox>())
{
passwordText.Text = passwordText.Text.Trim();
}
}
}
string[] hintList = new string[nQuestions];
List <string>[] passwordList = new List <string> [nQuestions];
int nDummyQuestion = 0;
for (int i = 0; i < _encQuestionList.Count; ++i)
{
var question = _encQuestionList[i];
hintList[i] = question._hintTextBox.Text;
passwordList[i] = new List <string>();
foreach (var passwordText in question._passwordStackPanel.Children.OfType <TextBox>())
{
if (passwordText.Text != "")
{
passwordList[i].Add(passwordText.Text);
}
}
if (passwordList[i].Count == 0)
{
nDummyQuestion += 1;
}
}
if (nDummyQuestion > 0)
{
message = ResourceService.Current.getMessage("MsgWDummyQuestion"); // A Question without a password is a dummy Question.
if (nQuestions - nDummyQuestion < nRequiredPasswords)
{
message += "\r\n" + ResourceService.Current.getMessage("MsgWUndecrytableArchive"); // Because it is less than the number of passwords required for decryption, an archive that can not be decrypted is created.
}
MessageBox.Show(message, "Warning", MessageBoxButton.OK, MessageBoxImage.Exclamation, MessageBoxResult.OK);
}
if (File.Exists(EncOutputFileTxt.Text))
{
message = ResourceService.Current.getMessage("MsgCOverwriteOutputFile"); // The output file exists. Do you want to overwrite?
if (MessageBox.Show(message, "Confirmation", MessageBoxButton.YesNo, MessageBoxImage.Exclamation, MessageBoxResult.No) == MessageBoxResult.No)
{
goto EXIT;
}
}
FileStream outputFS;
try
{
outputFS = File.Create(EncOutputFileTxt.Text);
}
catch (Exception ex)
{
message = ResourceService.Current.getMessage("MsgEFailCreateFile") + ex.Message; // Failed to create the output file.\r\n\r\nDetailed information:
MessageBox.Show(message, "Error", MessageBoxButton.OK, MessageBoxImage.Error, MessageBoxResult.OK);
goto EXIT;
}
message = ResourceService.Current.getMessage("MsgCStartEncryption"); // Start encryption.
if (MessageBox.Show(message, "Confirmation", MessageBoxButton.OKCancel, MessageBoxImage.Question, MessageBoxResult.Cancel) == MessageBoxResult.Cancel)
{
outputFS.Close();
goto EXIT;
}
AppConst.MPE_Flag flag = createFlag();
foreach (var list in passwordList)
{
for (int i = 0; i < list.Count; ++i)
{
list[i] = convertPassword(list[i], flag);
}
}
var currentCursor = this.Cursor;
try
{
this.Cursor = Cursors.Wait;
var p = new Progress <string>(ShowProgress);
await Task.Run(() => { MPECore.Encrypt(encTargetList, hintList, passwordList, nRequiredPasswords, flag, outputFS, p); });
}
catch (Exception ex)
{
message = ResourceService.Current.getMessage("MsgEFailEncryption") + ex.Message; // Encryption failed.\r\n\r\nDetailed information:
MessageBox.Show(message, "Error", MessageBoxButton.OK, MessageBoxImage.Error, MessageBoxResult.OK);
goto EXIT;
}
finally
{
outputFS.Close();
this.Cursor = currentCursor;
}
message = ResourceService.Current.getMessage("MsgIEndEncryption"); // Encryption is complete.
MessageBox.Show(message, "Succeed", MessageBoxButton.OK, MessageBoxImage.Information, MessageBoxResult.OK);
EXIT:
EnableUIs();
}
