private void authorize(string login, string password, bool createNew, ContentControl statusControl)
{
statusControl.Visibility = Visibility.Hidden;
FileSystemSettingsWindow fssw = null;
if (createNew)
{
fssw = new FileSystemSettingsWindow();
if (!fssw.ShowDialog().Value)
{
return;
}
}
FileDialog dialog = createNew ? (FileDialog) new SaveFileDialog() : (FileDialog) new OpenFileDialog();
dialog.DefaultExt = "mfs";
dialog.Filter = "Meow disk (*.mfs)|*.mfs";
UserInfo userInfo = null;
if (dialog.ShowDialog() == true)
{
FileSystemController fsctrl = new FileSystemController();
SHA1 sha = SHA1.Create();
string digest = UsefulThings.ENCODING.GetString(sha.ComputeHash(UsefulThings.ENCODING.GetBytes(password)));
digest = UsefulThings.replaceControlChars(digest);
bool success;
try
{
if (createNew)
{
//Создать
//TODO 15.11: запрашивать параметры создаваемого диска?
/*ushort clusterSize = FileSystemController.FACTOR * 4; //Блок = 4 КБ
* ushort rootSize = (ushort)(clusterSize * 10); //Корневой каталог = 10 блоков
* uint diskSize = 50 * FileSystemController.FACTOR * FileSystemController.FACTOR; //Раздел = 50 МБ (или 1 МБ для тестов)*/
fsctrl.SuperBlock = new SuperBlock(fsctrl, "MeowFS", fssw.ClusterSizeBytes, fssw.RootSizeBytes, fssw.DiskSizeBytes);
fsctrl.Fat = new FAT(fsctrl, (int)(fssw.DiskSizeBytes / fssw.ClusterSizeBytes));
fsctrl.RootDir = UsefulThings.ENCODING.GetBytes(new String('\0', fssw.RootSizeBytes));
fsctrl.createSpace(dialog.FileName, login, digest);
userInfo = new UserInfo(1, login, 1, UserInfo.DEFAULT_GROUP, UserInfo.Roles.ADMIN);
success = true;
}
else
{
//Открыть
fsctrl.openSpace(dialog.FileName);
byte[] users = fsctrl.readFile("/users.sys", false);
string[] usersStr = UsefulThings.fileFromByteArrToStringArr(users);
string[] tokens = { "", "", "", "" }; //0 = login, 1 = digest, 2 = gid, 3 = role
ushort uid;
success = false;
for (uid = 1; uid <= usersStr.Length && !success; ++uid)
{
tokens = usersStr[uid - 1].Split(UsefulThings.USERDATA_SEPARATOR.ToString().ToArray(), StringSplitOptions.None);
success = tokens[0].ToLower().Equals(login.ToLower()) && tokens[1].Equals(digest);
}
if (success)
{
--uid;
byte[] groups = fsctrl.readFile("/groups.sys", false);
string[] groupsStr = UsefulThings.fileFromByteArrToStringArr(groups);
ushort gid = ushort.Parse(tokens[2]); if (gid > groups.Length)
{
gid = 1;
}
userInfo = new UserInfo(uid, tokens[0], gid, groupsStr[gid - 1], (UserInfo.Roles)Enum.Parse(typeof(UserInfo.Roles), tokens[3]));
}
}
}
catch
{
success = false;
}
finally
{
fsctrl.closeSpace();
}
if (success)
{
Session.userInfo = userInfo;
MainWindow mw = new MainWindow(dialog.FileName);
Close();
mw.Show();
}
else
{
statusControl.Content = "Доступ не разрешён";
statusControl.Visibility = Visibility.Visible;
}
}
}
//private enum PathTypes { PT_ABSOLUTE, PT_RELATIVE };
private void openPath(string path)
{
path = UsefulThings.clearExcessSeparators(path);
try
{
path = UsefulThings.clearExcessSeparators(path);
string tmpPathWithoutLast, tmpLast;
UsefulThings.detachLastFilename(path, out tmpPathWithoutLast, out tmpLast);
uint newCluster;
FileHeader fh;
if (path.Equals(fsctrl.CurrDir))
{
newCluster = fsctrl.CurrDirCluster;
fh = new FileHeader("", "", (byte)FileHeader.FlagsList.FL_DIRECTORY, 0, 0); //требуется лишь только, чтобы у заголовка был флаг "директория"
}
else if (tmpPathWithoutLast.Equals(fsctrl.CurrDir))
{
FileHeader tmpFH = fsctrl.getFileHeader(tmpLast, fsctrl.CurrDirCluster, true);
if (tmpFH == null)
{
throw new InvalidPathException(path);
}
newCluster = tmpFH.FirstCluster;
fh = fsctrl.getFileHeader(tmpLast, fsctrl.CurrDirCluster, true);
}
else
{
if (path.Equals(""))
{
newCluster = fsctrl.SuperBlock.RootOffset / fsctrl.SuperBlock.ClusterSize;
}
else
{
FileHeader tmpFH = fsctrl.getFileHeader(path, true);
if (tmpFH == null)
{
throw new InvalidPathException(path);
}
newCluster = tmpFH.FirstCluster;
}
fh = fsctrl.getFileHeader(path, true);
}
if (!path.Equals("") && fh == null)
{
throw new InvalidPathException(path);
}
if (path.Equals("") || fh.IsDirectory)
{
byte[] dir = fsctrl.readFile(path, true);
wrapPanel.Children.Clear();
while (dir.Length > 0)
{
FileHeader currFH = new FileHeader(dir);
addFileView(currFH);
dir = dir.Skip(FileHeader.SIZE).ToArray();
}
fsctrl.CurrDir = path;
fsctrl.CurrDirCluster = newCluster;
addressEdit.Text = fsctrl.CurrDir.Length > 0 ? fsctrl.CurrDir : "/";
selection = null;
if (fsctrl.CurrDir.Equals(""))
{
backImg.IsEnabled = false;
}
else
{
backImg.IsEnabled = true;
}
}
else
{
FileViewerWindow fvw = new FileViewerWindow(fh, UsefulThings.ENCODING.GetString(fsctrl.readFile(fh, true)));
fvw.Title = fh.NamePlusExtensionWithoutZeros;
fvw.ShowDialog();
if (fvw.IsChanged && MessageBox.Show("Файл был изменён. Сохранить изменения?", "Подтвердите действие",
MessageBoxButton.YesNo, MessageBoxImage.Question) == MessageBoxResult.Yes)
{
fsctrl.rewriteFile(fsctrl.CurrDir, fh, UsefulThings.ENCODING.GetBytes(fvw.textField.Text), true);
}
}
}
catch (Exception e)
{
MessageBox.Show(e.Message, "Ошибка", MessageBoxButton.OK, MessageBoxImage.Error);
openPath(fsctrl.CurrDir);
}
}