Return to volumepasswordpanel.cpp CVS log

Up to [truecrypt] / truecrypt / main / forms

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/GraphicUserInterface.h"
#include "KeyfilesDialog.h"
#include "VolumePasswordPanel.h"

namespace TrueCrypt
{
	VolumePasswordPanel::VolumePasswordPanel (wxWindow* parent, shared_ptr <VolumePassword> password, shared_ptr <KeyfileList> keyfiles, bool enableCache, bool enablePassword, bool enableKeyfiles, bool enableConfirmation, bool enablePkcs5Prf, const wxString &passwordLabel)
		: VolumePasswordPanelBase (parent), Keyfiles (new KeyfileList)
	{
		if (keyfiles)
		{
			*Keyfiles = *keyfiles;
			UseKeyfilesCheckBox->SetValue (!Keyfiles->empty());
		}
		else
		{
			*Keyfiles = Gui->GetPreferences().DefaultKeyfiles;
			UseKeyfilesCheckBox->SetValue (Gui->GetPreferences().UseKeyfiles && !Keyfiles->empty());
		}

		PasswordTextCtrl->SetMaxLength (VolumePassword::MaxSize);
		ConfirmPasswordTextCtrl->SetMaxLength (VolumePassword::MaxSize);

		if (!passwordLabel.empty())
		{
			PasswordStaticText->SetLabel (passwordLabel);
			GridBagSizer->Detach (PasswordStaticText);
			GridBagSizer->Add (PasswordStaticText, wxGBPosition (0, 1), wxGBSpan (1, 1), wxALIGN_CENTER_VERTICAL | wxBOTTOM, Gui->GetDefaultBorderSize());
		}

		CacheCheckBox->Show (enableCache);
		
		if (!enablePassword && enableKeyfiles)
		{
			Layout();
			Fit();
			PasswordPlaceholderSizer->SetMinSize (wxSize (PasswordTextCtrl->GetSize().GetWidth(), -1));
		}
		else if (!enablePkcs5Prf)
		{
			GridBagSizer->Remove (PasswordPlaceholderSizer);
		}

		PasswordStaticText->Show (enablePassword);
		PasswordTextCtrl->Show (enablePassword);
		DisplayPasswordCheckBox->Show (enablePassword);

		ConfirmPasswordStaticText->Show (enableConfirmation);
		ConfirmPasswordTextCtrl->Show (enableConfirmation);
		
		UseKeyfilesCheckBox->Show (enableKeyfiles);
		KeyfilesButton->Show (enableKeyfiles);

		Pkcs5PrfStaticText->Show (enablePkcs5Prf);
		Pkcs5PrfChoice->Show (enablePkcs5Prf);

		if (enablePkcs5Prf)
		{	
			foreach_ref (const Pkcs5Kdf &kdf, Pkcs5Kdf::GetAvailableAlgorithms())
			{
				if (!kdf.IsDeprecated())
					Pkcs5PrfChoice->Append (kdf.GetName());
			}
			Pkcs5PrfChoice->Select (0);
		}

		if (!enablePkcs5Prf || (!enablePassword && !enableKeyfiles))
		{
			GridBagSizer->Remove (Pkcs5PrfSizer);
		}

		// Keyfiles drag & drop
		class FileDropTarget : public wxFileDropTarget
		{
		public:
			FileDropTarget (VolumePasswordPanel *panel) : Panel (panel) { }

			wxDragResult OnDragOver (wxCoord x, wxCoord y, wxDragResult def)
			{
				return wxDragLink;
			}

			bool OnDropFiles (wxCoord x, wxCoord y, const wxArrayString &filenames)
			{
				foreach (const wxString &f, filenames)
					Panel->AddKeyfile (make_shared <Keyfile> (wstring (f)));

				return true;
			}

		protected:
			VolumePasswordPanel *Panel;
		};

		if (enableKeyfiles)
		{
			SetDropTarget (new FileDropTarget (this));
#ifdef TC_MACOSX
			foreach (wxWindow *c, GetChildren())
				c->SetDropTarget (new FileDropTarget (this));
#endif
		}

		Layout();
		Fit();
	}

	VolumePasswordPanel::~VolumePasswordPanel ()
	{
		WipeTextCtrl (PasswordTextCtrl);
		WipeTextCtrl (ConfirmPasswordTextCtrl);
	}

	void VolumePasswordPanel::AddKeyfile (shared_ptr <Keyfile> keyfile)
	{
		if (!Keyfiles)
			Keyfiles.reset (new KeyfileList);

		Keyfiles->push_back (keyfile);
		UseKeyfilesCheckBox->SetValue (true);
	}

	void VolumePasswordPanel::DisplayPassword (bool display, wxTextCtrl **textCtrl, int row)
	{
		FreezeScope freeze (this);

		wxTextCtrl *newTextCtrl = new wxTextCtrl (this, wxID_ANY, wxEmptyString, wxDefaultPosition, wxDefaultSize, display ? 0 : wxTE_PASSWORD);
		newTextCtrl->SetMaxLength (VolumePassword::MaxSize); 
		newTextCtrl->SetValue ((*textCtrl)->GetValue());
		newTextCtrl->SetMinSize ((*textCtrl)->GetSize());

		GridBagSizer->Detach ((*textCtrl));
		GridBagSizer->Add (newTextCtrl, wxGBPosition (row, 1), wxGBSpan (1, 2), wxEXPAND|wxBOTTOM|wxALIGN_CENTER_VERTICAL, 5);
		(*textCtrl)->Show (false);
		WipeTextCtrl (*textCtrl);

		Fit();
		Layout();
		newTextCtrl->SetMinSize ((*textCtrl)->GetMinSize());

		newTextCtrl->Connect (wxEVT_COMMAND_TEXT_UPDATED, wxCommandEventHandler (VolumePasswordPanel::OnTextChanged), nullptr, this);
		*textCtrl = newTextCtrl;
	}

	shared_ptr <VolumePassword> VolumePasswordPanel::GetPassword () const
	{
		return GetPassword (PasswordTextCtrl);
	}

	shared_ptr <VolumePassword> VolumePasswordPanel::GetPassword (wxTextCtrl *textCtrl) const
	{
		shared_ptr <VolumePassword> password;
		wchar_t passwordBuf[VolumePassword::MaxSize + 1];
		finally_do_arg (BufferPtr, BufferPtr (reinterpret_cast <byte *> (passwordBuf), sizeof (passwordBuf)), { finally_arg.Erase(); });

#ifdef TC_WINDOWS
		int len = GetWindowText (static_cast <HWND> (textCtrl->GetHandle()), passwordBuf, VolumePassword::MaxSize + 1);
		password.reset (new VolumePassword (passwordBuf, len));
#else
		const wxString &passwordStr = textCtrl->GetValue();
		for (size_t i = 0; i < passwordStr.size() && i < VolumePassword::MaxSize; ++i)
		{
			passwordBuf[i] = (wchar_t) passwordStr[i];
			const_cast <wchar_t *> (passwordStr.c_str())[i] = L'X';
		}
		password.reset (new VolumePassword (passwordBuf, passwordStr.size()));
#endif
		return password;
	}

	shared_ptr <Pkcs5Kdf> VolumePasswordPanel::GetPkcs5Kdf () const
	{
		try
		{
			return Pkcs5Kdf::GetAlgorithm (wstring (Pkcs5PrfChoice->GetStringSelection()));
		}
		catch (ParameterIncorrect&)
		{
			return shared_ptr <Pkcs5Kdf> ();
		}
	}

	void VolumePasswordPanel::OnAddKeyfileDirMenuItemSelected (wxCommandEvent& event)
	{
		DirectoryPath dir = Gui->SelectDirectory (this, LangString["SELECT_KEYFILE_PATH"]);

		if (!dir.IsEmpty())
		{
			Keyfiles->push_back (make_shared <Keyfile> (dir));

			UseKeyfilesCheckBox->SetValue (!Keyfiles->empty());
			OnUpdate();
		}
	}

	void VolumePasswordPanel::OnAddKeyfilesMenuItemSelected (wxCommandEvent& event)
	{
		FilePathList files = Gui->SelectFiles (this, LangString["SELECT_KEYFILES"], false, true);

		if (!files.empty())
		{
			foreach_ref (const FilePath &f, files)
				Keyfiles->push_back (make_shared <Keyfile> (f));

			UseKeyfilesCheckBox->SetValue (!Keyfiles->empty());
			OnUpdate();
		}
	}

	void VolumePasswordPanel::OnDisplayPasswordCheckBoxClick (wxCommandEvent& event)
	{
		DisplayPassword (event.IsChecked(), &PasswordTextCtrl, 1);
		
		if (ConfirmPasswordTextCtrl->IsShown())
			DisplayPassword (event.IsChecked(), &ConfirmPasswordTextCtrl, 2);

		OnUpdate();
	}

	void VolumePasswordPanel::OnConfigureKeyfilesMenuItemSelected (wxCommandEvent& event)
	{
		KeyfilesDialog dialog (GetParent(), Keyfiles);

		if (dialog.ShowModal() == wxID_OK)
		{
			Keyfiles = dialog.GetKeyfiles();

			UseKeyfilesCheckBox->SetValue (!Keyfiles->empty());
			OnUpdate();
		}
	}

	void VolumePasswordPanel::OnKeyfilesButtonClick (wxCommandEvent& event)
	{
		wxMenu popup;
		Gui->AppendToMenu (popup, _("&Configure..."), this, wxCommandEventHandler (VolumePasswordPanel::OnConfigureKeyfilesMenuItemSelected));

		popup.AppendSeparator();
		Gui->AppendToMenu (popup, _("Add &Files..."), this, wxCommandEventHandler (VolumePasswordPanel::OnAddKeyfilesMenuItemSelected));
		Gui->AppendToMenu (popup, _("Add &Directory..."), this, wxCommandEventHandler (VolumePasswordPanel::OnAddKeyfileDirMenuItemSelected));

		PopupMenu (&popup, KeyfilesButton->GetPosition().x + 2, KeyfilesButton->GetPosition().y + 2);
	}

	bool VolumePasswordPanel::PasswordsMatch () const
	{
		assert (ConfirmPasswordStaticText->IsShown());
		return *GetPassword (PasswordTextCtrl) == *GetPassword (ConfirmPasswordTextCtrl);
	}

	void VolumePasswordPanel::WipeTextCtrl (wxTextCtrl *textCtrl)
	{
		textCtrl->SetValue (wxString (L'X', textCtrl->GetLineLength(0)));
		textCtrl->SetValue (L"");
	}
}

This archive runs on limited infrastructure. Preserving old code on modern bandwidth. Automated agents are requested to crawl responsibly.