/// <summary>
/// Decompresses a file using GZip decompression.
/// </summary>
/// <param name="inFile">Filepath of the file to be decompressed.</param>
public static void Decompress(string inFile)
{
//Makes new FileInfo for the target file
FileInfo fileToDecompress = new FileInfo(inFile);
// Creates a FileStream containing the data from fileToDecompress
using (FileStream originalFileStream = fileToDecompress.OpenRead()) {
string currentFileName = fileToDecompress.FullName;
string newFileName = currentFileName.Remove(currentFileName.Length - fileToDecompress.Extension.Length);
// Creates the decompressed file stream
using (FileStream decompressedFileStream = File.Create(newFileName)) {
// Creates the compression stream
using (GZipStream decompressionStream = new GZipStream(originalFileStream, CompressionMode.Decompress)) {
// Decompresses file
decompressionStream.CopyTo(decompressedFileStream);
}
}
// Updates FileOP to the decompressed file
FileOP.LoadFile(FileOP.GetFile().Remove(FileOP.GetFile().Length - fileToDecompress.Extension.Length));
}
// Delete compressed file
File.Delete(inFile);
}
/// <summary>
/// Opens up the dialog for creating a new password file
/// Returns true upon success and false upon premature closing.
/// </summary>
public static bool CreateFile()
{
Stream myStream;
//default to creating a .csv file
SaveFileDialog save = new SaveFileDialog {
Filter = "CSV |*.csv",
Title = "Save password DB"
};
//opens up the file explorer dialog menu and determines if the result is the ok button
if (save.ShowDialog() == DialogResult.OK)
{
//as long as the stream is not null load the file name and optionally print it for testing purposes
if ((myStream = save.OpenFile()) != null)
{
FileOP.LoadFile(save.FileName);
FileOP.PrintFileName();
myStream.Close();
}
//Write the first line of the file to the file.
using (System.IO.StreamWriter file = new System.IO.StreamWriter(save.FileName, true)) {
file.WriteLine("Expiration Date,Title,UserName,Password,URL,Notes");
file.Close();
}
return(true);
}
else
{
return(false);
}
}
/// <summary>
/// Compresses a file using GZip compression.
/// </summary>
/// <param name="inFile">Filepath of the file to be compressed.</param>
public static void Compress(string inFile)
{
//Makes new FileInfo for the target file
FileInfo fileToCompress = new FileInfo(inFile);
// Creates a File Stream containing the data in the fileToCompress
using (FileStream originalFileStream = fileToCompress.OpenRead()) {
// Check that the file is not hidden or already a .gz file
if ((File.GetAttributes(fileToCompress.FullName) & FileAttributes.Hidden) != FileAttributes.Hidden & fileToCompress.Extension != ".gz")
{
// Creates a File Stream for the compressed file
using (FileStream compressedFileStream = File.Create(fileToCompress.FullName + ".gz")) {
// Creates the compression stream
using (GZipStream compressionStream = new GZipStream(compressedFileStream, CompressionMode.Compress)) {
// Compresses file
originalFileStream.CopyTo(compressionStream);
}
}
}
}
// Delete uncompressed file
File.Delete(inFile);
// Updates the file
FileOP.LoadFile(FileOP.GetFile() + ".gz");
}
/// <summary>
/// Opens the dialog for opening a file allows opening of .gz files
/// </summary>
public static bool SelectFile()
{
using (OpenFileDialog openFileDialog = new OpenFileDialog()) {
openFileDialog.InitialDirectory = "c:\\";
openFileDialog.Filter = "gz file (*.gz)|*.gz";
openFileDialog.RestoreDirectory = true;
//if the result is ok load the file
if (openFileDialog.ShowDialog() == DialogResult.OK)
{
//set the path of the file that is selected
FileOP.LoadFile(openFileDialog.FileName);
return(true);
}
else
{
return(false);
}
}
}
/// <summary>
/// Writes all the password entries to the CSV file.
/// </summary>
public static void WriteToFile(DataTable dataTable)
{
string origFilePath = GetFile();
// Creation of temp file to rewrite file
string tempFile = "temp_file.csv";
using (FileStream fs = File.Create(tempFile)) { }
// Write all of the password entries in the data table to the temp file
using (StreamWriter writer = new StreamWriter(tempFile)) {
using (CsvWriter csvWriter = new CsvWriter(writer, CultureInfo.InvariantCulture)) {
// Setting the map so that entries get written into the correct columns
csvWriter.Context.RegisterClassMap <PasswordEntryMap>();
// Creates a list for the password entries and adds the entries to it
List <PasswordEntry> passwordEntries = new List <PasswordEntry>()
{
};
foreach (DataRow row in dataTable.Rows)
{
PasswordEntry passwordEntry = new PasswordEntry(row["expiration date"].ToString(), row["title"].ToString(), row["username"].ToString(),
row["password"].ToString(), row["url"].ToString(), row["notes"].ToString());
passwordEntries.Add(passwordEntry);
}
// Casting the password list to an IEnumerable
IEnumerable <PasswordEntry> enumData = passwordEntries;
// Write the entries to the CSV
csvWriter.WriteRecords(enumData);
}
}
// Replace the original file with the temp file
File.Delete(origFilePath);
File.Move(tempFile, origFilePath);
// Update the file currently being used by the program
FileOP.LoadFile(origFilePath);
}
