/// <summary> /// Provides files recovery feature /// </summary> /// <param name="sender"></param> /// <param name="e"></param> private void btnRecoverFiles_Click(object sender, RoutedEventArgs e) { string securityAnswer = textBoxSecurityAnswer.Text.ToLower(); string password = textBoxRecoveryPassword.Password; if (EncryptedFiles.Count.Equals(0)) { MessageBox.Show("You have no files to recover.", "No encrypted files found", MessageBoxButton.OK, MessageBoxImage.Information); } else { if (DataCryptography.SHA512(securityAnswer).Equals(LoggedUser.GetAnswer()) && DataCryptography.SHA512(password).Equals(LoggedUser.GetPassword())) { MessageBoxResult result = MessageBox.Show("Do you want to recover your files? All your program settings and keys will be deleted.", "Files recovery system", MessageBoxButton.YesNo, MessageBoxImage.Question); if (result.Equals(MessageBoxResult.Yes)) { string aesKey = DataCryptography.SHA512(DataCryptography.GenerateAesKey(this.Username, password, LoggedUser.GetQuestion(), securityAnswer)); List <string> tempEncryptedFiles = new List <string>(EncryptedFiles); EncryptedFiles.Clear(); Files.Clear(); Folders.Clear(); TrustedDevices.Clear(); var decryptionTask = Task.Run(() => { foreach (string encryptedFilePath in tempEncryptedFiles) { string filePath = DataCryptography.FileDecrypt(encryptedFilePath, aesKey); } }); decryptionTask.Wait(); LoggedUser.SetPublicKeyXmlString(String.Empty); LoggedUser.SetAesKey(aesKey); IOClass.SaveFilesList(Files, this.UserFilesFilepath); IOClass.SaveFilesList(EncryptedFiles, this.UserEncryptedFilesFilepath); IOClass.SaveFoldersList(Folders, this.UserFoldersFilepath); IOClass.SaveTrustedDevicesList(TrustedDevices, this.UserKeyDataFilepath); IOClass.UpdateUser(LoggedUser); bindFilesListBox(); bindFoldersListBox(); MessageBox.Show("Your files are decrypted now.", "Files recovery system", MessageBoxButton.OK, MessageBoxImage.Information); } } else { MessageBox.Show("Security answer or password incorrect!", "Files recovery system", MessageBoxButton.OK, MessageBoxImage.Warning); } } }
/// <summary> /// Deletes folder paths that are no longer protected /// </summary> /// <param name="sender"></param> /// <param name="e"></param> private void deleteFoldersBtn_Click(object sender, RoutedEventArgs e) { string selectedItem = listBoxFolders.SelectedItem.ToString(); ProcessDirectory(selectedItem, false); IOClass.SaveFilesList(Files, this.UserFilesFilepath); Folders.Remove(selectedItem); IOClass.SaveFoldersList(Folders, this.UserFoldersFilepath); listBoxFiles.ItemsSource = Files; listBoxFolders.ItemsSource = Folders; }
/// <summary> /// Activates File Dialog and saves folder paths that will be protected /// </summary> /// <param name="sender"></param> /// <param name="e"></param> private void addFoldersBtn_Click(object sender, RoutedEventArgs e) { CommonOpenFileDialog folderDialog = new CommonOpenFileDialog { InitialDirectory = @"C:\", IsFolderPicker = true }; if (folderDialog.ShowDialog() == CommonFileDialogResult.Ok) { Folders = IOClass.ReadFoldersList(this.UserFoldersFilepath); Folders.AddRange(folderDialog.FileNames); foreach (string folderPath in folderDialog.FileNames) { ProcessDirectory(folderPath, true); } IOClass.SaveFilesList(Files, this.UserFilesFilepath); listBoxFolders.ItemsSource = Folders; listBoxFiles.ItemsSource = Files; IOClass.SaveFoldersList(Folders, this.UserFoldersFilepath); } }