internal static CodeSnippetCollectionOld TryDecrypt(string data, SecureString password, out bool succes)
{
try
{
data = Utils.FromBase64(data);
data = StringCipher.Decrypt(data, password);
CodeSnippetCollectionOld _collection = Utils.FromJson <CodeSnippetCollectionOld>(data);
_collection.FromBase64();
succes = true;
return(_collection);
}
catch (Exception)
{
}
succes = false;
return(null);
}
public static CodeSnippetCollectionOld ReadCollectionLegacy1(string filename, SecureString password, out bool succes)
{
succes = true;
string _data = File.ReadAllText(filename, Encoding.Default);
try
{
if (password != null)
{
_data = StringCipher.Decrypt(_data, password);
}
}
catch
{
MessageBox.Show($"Could not decrypt: '{filename}' with the current password! ", "Error", MessageBoxButtons.OK, MessageBoxIcon.Error);
succes = false;
return(null);
}
try
{
CodeSnippetCollectionOld _collection = Utils.FromJson <CodeSnippetCollectionOld>(_data);
_collection.FromBase64();
if (_collection.Items == null)
{
succes = false;
return(null);
}
succes = true;
return(_collection);
}
catch
{
succes = false;
return(null);
}
}
public static CodeSnippetCollectionOld ReadCollectionLegacy2(string filename, SecureString password, PasswordHelper passwordHelper, FormCodeLibrary mainform, out bool succes)
{
string usbKeyId = null;
succes = true;
string _fileData = string.Empty;
SecureString _usbKeyPassword = null;
FileContainer _container = new FileContainer();
try
{
_fileData = File.ReadAllText(filename, Encoding.Default);
_container = Utils.FromJson <FileContainer>(_fileData);
usbKeyId = _container.UsbKeyId;
}
catch
{
succes = false;
return(null);
}
if (_container.Encrypted)
{
if (!string.IsNullOrEmpty(_container.UsbKeyId))
{
bool _canceled;
usbKeyId = _container.UsbKeyId;
byte[] _key = passwordHelper.GetUsbKey(_container.UsbKeyId, false, out _canceled);
if (_canceled)
{
succes = false;
usbKeyId = null;
return(null);
}
_usbKeyPassword = StringCipher.ToSecureString(Utils.ByteArrayToString(_key));
CodeSnippetCollectionOld _result1 = TryDecrypt(_container.Data, _usbKeyPassword, out succes);
if (succes)
{
passwordHelper.Password = null;
passwordHelper.UsbKeyId = usbKeyId;
passwordHelper.ShowKey();
return(_result1);
}
else
{
MessageBox.Show(mainform, $"Could not open file {filename}", "Error", MessageBoxButtons.OK, MessageBoxIcon.Error);
passwordHelper.Password = null;
passwordHelper.UsbKeyId = null;
passwordHelper.ShowKey();
}
}
// Decrypt with given password.
if (password == null)
{
goto setPassword;
}
retryPassword:
CodeSnippetCollectionOld _result = TryDecrypt(_container.Data, password, out succes);
if (succes)
{
passwordHelper.Password = password;
passwordHelper.UsbKeyId = null;
passwordHelper.ShowKey();
return(_result);
}
setPassword:
FormSetPassword _formSet = new FormSetPassword();
DialogResult _dg = _formSet.ShowDialog();
if (_dg == DialogResult.OK)
{
password = _formSet.Password;
goto retryPassword;
}
else
{
succes = false;
return(null);
}
}
else
{
try
{
CodeSnippetCollectionOld _collection = Utils.FromJson <CodeSnippetCollectionOld>(Utils.FromBase64(_container.Data));
_collection.FromBase64();
passwordHelper.Password = null;
passwordHelper.UsbKeyId = null;
passwordHelper.ShowKey();
succes = true;
return(_collection);
}
catch
{
succes = false;
return(null);
}
}
}