Return to changepassworddialog.cpp CVS log

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5.0

/*
 Copyright (c) 2008 TrueCrypt Foundation. All rights reserved.

 Governed by the TrueCrypt License 2.4 the full text of which is contained
 in the file License.txt included in TrueCrypt binary and source code
 distribution packages.
*/

#include "System.h"
#include "Main/Main.h"
#include "Main/GraphicUserInterface.h"
#include "ChangePasswordDialog.h"

namespace TrueCrypt
{
	ChangePasswordDialog::ChangePasswordDialog (wxWindow* parent, shared_ptr <VolumePath> volumePath, Mode::Enum mode, shared_ptr <VolumePassword> password, shared_ptr <KeyfileList> keyfiles, shared_ptr <VolumePassword> newPassword, shared_ptr <KeyfileList> newKeyfiles)
		: ChangePasswordDialogBase (parent), DialogMode (mode), Path (volumePath)
	{
		bool enableNewPassword = false;
		bool enableNewKeyfiles = false;
		bool enablePkcs5Prf = false;

		switch (mode)
		{
		case Mode::ChangePasswordAndKeyfiles:
			enableNewPassword = true;
			enableNewKeyfiles = true;
			enablePkcs5Prf = true;
			SetTitle (_("Change Volume Password and Keyfiles"));
			break;

		case Mode::ChangeKeyfiles:
			enableNewKeyfiles = true;
			SetTitle (_("Add/Remove Keyfiles to/from Volume"));
			break;

		case Mode::RemoveAllKeyfiles:
			SetTitle (_("Remove All Keyfiles from Volume"));
			break;

		case Mode::ChangePkcs5Prf:
			enablePkcs5Prf = true;
			SetTitle (_("Change Header Key Derivation Algorithm"));
			break;

		default:
			throw ParameterIncorrect (SRC_POS);
		}

		CurrentPasswordPanel = new VolumePasswordPanel (this, password, keyfiles);
		CurrentPasswordPanel->UpdateEvent.Connect (EventConnector <ChangePasswordDialog> (this, &ChangePasswordDialog::OnPasswordPanelUpdate));
		CurrentPasswordPanelSizer->Add (CurrentPasswordPanel, 1, wxALL | wxEXPAND);

		NewPasswordPanel = new VolumePasswordPanel (this, newPassword, newKeyfiles, false, enableNewPassword, enableNewKeyfiles, enableNewPassword, enablePkcs5Prf);
		NewPasswordPanel->UpdateEvent.Connect (EventConnector <ChangePasswordDialog> (this, &ChangePasswordDialog::OnPasswordPanelUpdate));
		NewPasswordPanelSizer->Add (NewPasswordPanel, 1, wxALL | wxEXPAND);
		
		if (mode == Mode::RemoveAllKeyfiles)
			NewSizer->Show (false);

		Layout();
		Fit();
		Center();

		OnPasswordPanelUpdate();
		CurrentPasswordPanel->SetFocusToPasswordTextCtrl();
	}

	ChangePasswordDialog::~ChangePasswordDialog ()
	{
		CurrentPasswordPanel->UpdateEvent.Disconnect (this);
		NewPasswordPanel->UpdateEvent.Disconnect (this);
	}

	void ChangePasswordDialog::OnOKButtonClick (wxCommandEvent& event)
	{
		try
		{
			shared_ptr <VolumePassword> newPassword;
			if (DialogMode == Mode::ChangePasswordAndKeyfiles)
			{
				newPassword = NewPasswordPanel->GetPassword();
				newPassword->CheckPortability();

				if (newPassword->Size() > 0 && newPassword->Size() < VolumePassword::WarningSizeThreshold
					&& !Gui->AskYesNo (LangString ["PASSWORD_LENGTH_WARNING"], false, true))
				{
					NewPasswordPanel->SetFocusToPasswordTextCtrl();
					return;
				}
			}
			else
				newPassword = CurrentPasswordPanel->GetPassword();

			shared_ptr <KeyfileList> newKeyfiles;
			if (DialogMode == Mode::ChangePasswordAndKeyfiles || DialogMode == Mode::ChangeKeyfiles)
				newKeyfiles = NewPasswordPanel->GetKeyfiles();
			else if (DialogMode != Mode::RemoveAllKeyfiles)
				newKeyfiles = CurrentPasswordPanel->GetKeyfiles();

			{
				wxBusyCursor busy;
				Core->ChangePassword (Path,	Gui->GetPreferences().DefaultMountOptions.PreserveTimestamps,
					CurrentPasswordPanel->GetPassword(), CurrentPasswordPanel->GetKeyfiles(),
					newPassword, newKeyfiles, NewPasswordPanel->GetPkcs5Kdf());
			}

			switch (DialogMode)
			{
			case Mode::ChangePasswordAndKeyfiles:
				Gui->ShowInfo ("PASSWORD_CHANGED");
				break;

			case Mode::ChangeKeyfiles:
			case Mode::RemoveAllKeyfiles:
				Gui->ShowInfo ("KEYFILE_CHANGED");
				break;

			case Mode::ChangePkcs5Prf:
				Gui->ShowInfo ("PKCS5_PRF_CHANGED");
				break;

			default:
				throw ParameterIncorrect (SRC_POS);
			}

			EndModal (wxID_OK);
		}
		catch (UnportablePassword &e)
		{
			Gui->ShowError (e);
			NewPasswordPanel->SetFocusToPasswordTextCtrl();
		}
		catch (PasswordException &e)
		{
			Gui->ShowWarning (e);
			CurrentPasswordPanel->SetFocusToPasswordTextCtrl();
		}
		catch (exception &e)
		{
			Gui->ShowError (e);
		}
	}

	void ChangePasswordDialog::OnPasswordPanelUpdate ()
	{
		bool ok = true;

		bool passwordEmpty = CurrentPasswordPanel->GetPassword()->IsEmpty();
		bool keyfilesEmpty = !CurrentPasswordPanel->GetKeyfiles() || CurrentPasswordPanel->GetKeyfiles()->empty();

		if (passwordEmpty && keyfilesEmpty)
			ok = false;

		if (DialogMode == Mode::RemoveAllKeyfiles && (passwordEmpty || keyfilesEmpty))
			ok = false;

		if (DialogMode == Mode::ChangePasswordAndKeyfiles || DialogMode == Mode::ChangeKeyfiles)
		{
			bool newKeyfilesEmpty = !NewPasswordPanel->GetKeyfiles() || NewPasswordPanel->GetKeyfiles()->empty();

			if (DialogMode == Mode::ChangeKeyfiles
				&& (passwordEmpty && newKeyfilesEmpty || keyfilesEmpty && newKeyfilesEmpty))
				ok = false;

			if (DialogMode == Mode::ChangePasswordAndKeyfiles
				&& (NewPasswordPanel->GetPassword()->IsEmpty() && newKeyfilesEmpty || !NewPasswordPanel->PasswordsMatch()))
				ok = false;
		}

		OKButton->Enable (ok);
	}
}

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