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Files
VeraCrypt/src/Main/Forms/VolumePasswordPanel.cpp
2015-06-24 15:33:16 +02:00

388 lines
11 KiB
C++
Executable File

/*
Copyright (c) 2008 TrueCrypt Developers Association. All rights reserved.
Governed by the TrueCrypt License 3.0 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"
#include "SecurityTokenKeyfilesDialog.h"
namespace VeraCrypt
{
VolumePasswordPanel::VolumePasswordPanel (wxWindow* parent, MountOptions* options, shared_ptr <VolumePassword> password, bool disableTruecryptMode, shared_ptr <KeyfileList> keyfiles, bool enableCache, bool enablePassword, bool enableKeyfiles, bool enableConfirmation, bool enablePkcs5Prf, bool isMountPassword, 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);
VolumePimTextCtrl->Show (enablePassword);
VolumePinHelpStaticText->Show (enablePassword);
ConfirmPasswordStaticText->Show (enableConfirmation);
ConfirmPasswordTextCtrl->Show (enableConfirmation);
UseKeyfilesCheckBox->Show (enableKeyfiles);
KeyfilesButton->Show (enableKeyfiles);
Pkcs5PrfStaticText->Show (enablePkcs5Prf);
Pkcs5PrfChoice->Show (enablePkcs5Prf);
TrueCryptModeCheckBox->Show (!disableTruecryptMode);
HeaderWipeCountText->Show (enablePkcs5Prf && !isMountPassword);
HeaderWipeCount->Show (enablePkcs5Prf && !isMountPassword);
if (options && !disableTruecryptMode)
{
TrueCryptModeCheckBox->SetValue (options->TrueCryptMode);
}
if (enablePkcs5Prf)
{
int index, prfInitialIndex = 0;
if (isMountPassword)
{
// case of password for mounting
Pkcs5PrfChoice->Delete (0);
Pkcs5PrfChoice->Append (LangString["AUTODETECTION"]);
}
foreach_ref (const Pkcs5Kdf &kdf, Pkcs5Kdf::GetAvailableAlgorithms(false))
{
if (!kdf.IsDeprecated() || isMountPassword)
{
index = Pkcs5PrfChoice->Append (kdf.GetName());
if (isMountPassword && options && options->Kdf
&& (options->Kdf->GetName() == kdf.GetName())
)
{
prfInitialIndex = index;
}
}
}
Pkcs5PrfChoice->Select (prfInitialIndex);
}
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
wxString passwordStr (textCtrl->GetValue()); // A copy of the password is created here by wxWidgets, which cannot be erased
for (size_t i = 0; i < passwordStr.size() && i < VolumePassword::MaxSize; ++i)
{
passwordBuf[i] = (wchar_t) passwordStr[i];
passwordStr[i] = L'X';
}
password.reset (new VolumePassword (passwordBuf, passwordStr.size() <= VolumePassword::MaxSize ? passwordStr.size() : VolumePassword::MaxSize));
#endif
return password;
}
shared_ptr <Pkcs5Kdf> VolumePasswordPanel::GetPkcs5Kdf () const
{
try
{
return Pkcs5Kdf::GetAlgorithm (wstring (Pkcs5PrfChoice->GetStringSelection()), GetTrueCryptMode());
}
catch (ParameterIncorrect&)
{
return shared_ptr <Pkcs5Kdf> ();
}
}
int VolumePasswordPanel::GetVolumePim () const
{
wxString pinStr (VolumePimTextCtrl->GetValue());
long pin = 0;
if (pinStr.IsEmpty())
return 0;
if (pinStr.ToLong (&pin))
return (int) pin;
else
return -1;
}
bool VolumePasswordPanel::GetTrueCryptMode () const
{
return TrueCryptModeCheckBox->GetValue ();
}
int VolumePasswordPanel::GetHeaderWipeCount () const
{
try
{
long wipeCount;
wxString wipeCountStrDesc = HeaderWipeCount->GetStringSelection();
wxString wipeCountStr = wipeCountStrDesc.BeforeFirst(wxT('-'));
if (!wipeCountStr.ToLong(&wipeCount))
wipeCount = PRAND_HEADER_WIPE_PASSES;
return (int) wipeCount;
}
catch (ParameterIncorrect&)
{
return PRAND_HEADER_WIPE_PASSES;
}
}
void VolumePasswordPanel::OnAddKeyfileDirMenuItemSelected (wxCommandEvent& event)
{
try
{
DirectoryPath dir = Gui->SelectDirectory (this, LangString["SELECT_KEYFILE_PATH"]);
if (!dir.IsEmpty())
{
Keyfiles->push_back (make_shared <Keyfile> (dir));
UseKeyfilesCheckBox->SetValue (!Keyfiles->empty());
OnUpdate();
}
}
catch (exception &e)
{
Gui->ShowError (e);
}
}
void VolumePasswordPanel::OnAddKeyfilesMenuItemSelected (wxCommandEvent& event)
{
try
{
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();
}
}
catch (exception &e)
{
Gui->ShowError (e);
}
}
void VolumePasswordPanel::OnAddSecurityTokenSignatureMenuItemSelected (wxCommandEvent& event)
{
try
{
SecurityTokenKeyfilesDialog dialog (this);
if (dialog.ShowModal() == wxID_OK)
{
foreach (const SecurityTokenKeyfilePath &path, dialog.GetSelectedSecurityTokenKeyfilePaths())
{
Keyfiles->push_back (make_shared <Keyfile> (wstring (path)));
}
if (!dialog.GetSelectedSecurityTokenKeyfilePaths().empty())
{
UseKeyfilesCheckBox->SetValue (!Keyfiles->empty());
OnUpdate();
}
}
}
catch (exception &e)
{
Gui->ShowError (e);
}
}
void VolumePasswordPanel::OnDisplayPasswordCheckBoxClick (wxCommandEvent& event)
{
DisplayPassword (event.IsChecked(), &PasswordTextCtrl, 1);
if (ConfirmPasswordTextCtrl->IsShown())
DisplayPassword (event.IsChecked(), &ConfirmPasswordTextCtrl, 2);
OnUpdate();
}
void VolumePasswordPanel::OnKeyfilesButtonClick (wxCommandEvent& event)
{
KeyfilesDialog dialog (GetParent(), Keyfiles);
if (dialog.ShowModal() == wxID_OK)
{
Keyfiles = dialog.GetKeyfiles();
UseKeyfilesCheckBox->SetValue (!Keyfiles->empty());
OnUpdate();
}
}
void VolumePasswordPanel::OnKeyfilesButtonRightClick (wxMouseEvent& event)
{
wxMenu popup;
Gui->AppendToMenu (popup, LangString["IDC_KEYADD"], this, wxCommandEventHandler (VolumePasswordPanel::OnAddKeyfilesMenuItemSelected));
Gui->AppendToMenu (popup, LangString["IDC_ADD_KEYFILE_PATH"], this, wxCommandEventHandler (VolumePasswordPanel::OnAddKeyfileDirMenuItemSelected));
Gui->AppendToMenu (popup, LangString["IDC_TOKEN_FILES_ADD"], this, wxCommandEventHandler (VolumePasswordPanel::OnAddSecurityTokenSignatureMenuItemSelected));
PopupMenu (&popup, KeyfilesButton->GetPosition().x + 2, KeyfilesButton->GetPosition().y + 2);
}
void VolumePasswordPanel::OnKeyfilesButtonRightDown (wxMouseEvent& event)
{
#ifndef TC_MACOSX
event.Skip();
#endif
}
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)));
GetPassword (textCtrl);
}
void VolumePasswordPanel::OnPimChanged (wxCommandEvent& event)
{
if (ConfirmPasswordTextCtrl->IsShown())
{
if (GetVolumePim() != 0)
{
VolumePinHelpStaticText->SetForegroundColour(*wxRED);
VolumePinHelpStaticText->SetLabel(LangString["PIM_CHANGE_WARNING"]);
}
else
{
VolumePinHelpStaticText->SetForegroundColour(*wxBLACK);
VolumePinHelpStaticText->SetLabel(LangString["IDC_PIM_HELP"]);
}
}
}
}