private void EncodeButton_Click(object sender, RoutedEventArgs e)
{
// progress bar config
BackgroundWorker worker = new BackgroundWorker();
worker.WorkerReportsProgress = true;
worker.RunWorkerCompleted += Worker_RunWorkerCompletedEncryption;
worker.DoWork += Worker_DoWorkEncryption;
worker.ProgressChanged += Worker_ProgressChangedEncryption;
//get values from the user (from gui)
EncryptionOutput eo = GetSelectedValuesFromGUIEncryption();
bool correctInput = eo.IsInputCorrect;
if (correctInput)
{
worker.RunWorkerAsync(eo);
}
else
{
MessageBoxResult result =
MessageBox.Show(eo.ErrorMessage,
"Błędne dane wejściowe", MessageBoxButton.OK, MessageBoxImage.Exclamation);
}
}
private EncryptionOutput GetSelectedValuesFromGUIEncryption()
{
//enter values from input controls to EncryptionInput object
EncryptionInput ei = new EncryptionInput(InputFileTextBox.Text,
OutputFileTextBox.Text, cipherModeComboBox.Text,
RecipentsListBox.SelectedItems);
EncryptionOutput eo = InputHandlers.ParseEncryptionValues(ei);
return(eo);
}
private void Worker_DoWorkEncryption(object sender, DoWorkEventArgs e)
{
var worker = sender as BackgroundWorker;
worker.ReportProgress(0);
EncryptionOutput eo = (EncryptionOutput)e.Argument;
Encryption encryption = new Encryption(eo.InputFilePath, eo.OutputFilePath,
Globals.blockSize, eo.CipherMode, eo.FileExtension, eo.Recipents);
encryption.GenerateEncodedFile(worker);
}
public static EncryptionOutput ParseEncryptionValues(EncryptionInput ei)
{
bool readingAllOK = true;
string errorMsg = "";
//retrieve input file and output file name
string inputFilePath = ei.InputFile;
if (string.IsNullOrEmpty(inputFilePath) ||
!File.Exists(inputFilePath))
{
readingAllOK = false;
errorMsg += "Błędnie wybrany plik do zaszyfrowania.\n";
}
//get input file extension
string fileExtension = "";
try
{
fileExtension = System.IO.Path.GetExtension(inputFilePath);
}catch (ArgumentException e)
{
readingAllOK = false;
errorMsg += "Błędne rozszerzenie pliku wejściowego.\n";
}
//get output file name
string outputFileName = ei.OutputFile;
if (string.IsNullOrEmpty(outputFileName) ||
(outputFileName.IndexOfAny(Path.GetInvalidFileNameChars()) >= 0))
{
readingAllOK = false;
errorMsg += "Błędna nazwa pliku wyjściowego.\n";
}
string outputFilePath = "";
try
{
string outDirectory = System.IO.Path.GetDirectoryName(inputFilePath);
outputFilePath = outDirectory + "\\" + outputFileName;
}
catch (Exception e)
{
readingAllOK = false;
errorMsg += "Błędny katalog pliku wejściowego.\n";
}
//retrieve cipher mode
string cipherMode = ei.CipherMode;
//retrieve selected recipents from listbox
System.Collections.IList items = ei.ListItems;
List <User> recipents = items.Cast <User>().ToList();
if (recipents == null || recipents.Count == 0)
{
readingAllOK = false;
errorMsg += "Brak wybranych odbiorców pliku.\n";
}
//create and return an object keeping track of all read data
EncryptionOutput eo = new EncryptionOutput(readingAllOK,
inputFilePath, outputFilePath, cipherMode, fileExtension,
recipents, errorMsg);
return(eo);
}
