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diff --git a/qt/pinentrydialog.cpp b/qt/pinentrydialog.cpp
index da49b61..965b8d4 100644
--- a/qt/pinentrydialog.cpp
+++ b/qt/pinentrydialog.cpp
@@ -1,539 +1,539 @@
/* pinentrydialog.cpp - A (not yet) secure Qt 4 dialog for PIN entry.
* Copyright (C) 2002, 2008 Klarälvdalens Datakonsult AB (KDAB)
* Copyright 2007 Ingo Klöcker
* Copyright 2016 Intevation GmbH
*
* Written by Steffen Hansen <steffen@klaralvdalens-datakonsult.se>.
* Modified by Andre Heinecke <aheinecke@intevation.de>
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
* published by the Free Software Foundation; either version 2 of the
* License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, see <https://www.gnu.org/licenses/>.
* SPDX-License-Identifier: GPL-2.0+
*/
#include "pinentrydialog.h"
#include <QGridLayout>
#include <QProgressBar>
#include <QApplication>
#include <QFontMetrics>
#include <QStyle>
#include <QPainter>
#include <QPushButton>
#include <QDialogButtonBox>
#include <QKeyEvent>
#include <QLabel>
#include <QPalette>
#include <QLineEdit>
#include <QAction>
#include <QCheckBox>
#include "pinlineedit.h"
#ifdef Q_OS_WIN
#include <windows.h>
#endif
/* I [wk] have no idea for what this code was supposed to do.
Foregrounding a window is heavily restricted by modern Windows
versions. This is the reason why gpg-agent employs its
AllowSetForegroundWindow callback machinery to ask the supposed to
be be calling process to allow a pinentry to go into the
foreground.
[ah] This is a Hack to workaround the fact that Foregrounding
a Window is so restricted that it AllowSetForegroundWindow
does not always work (e.g. when the ForegroundWindow timeout
has not expired.
[ah 2018-03-05] Disabled this again in favor of using
windows stays on top hint. The code that is in main
setup_foreground_window. Additionally the setFocus
now works because it is posted after the window is shown
and our raise window also activates the pinentry window.
*/
#if 0
WINBOOL SetForegroundWindowEx(HWND hWnd)
{
//Attach foreground window thread to our thread
const DWORD ForeGroundID = GetWindowThreadProcessId(::GetForegroundWindow(), NULL);
const DWORD CurrentID = GetCurrentThreadId();
WINBOOL retval;
AttachThreadInput(ForeGroundID, CurrentID, TRUE);
//Do our stuff here
HWND hLastActivePopupWnd = GetLastActivePopup(hWnd);
retval = SetForegroundWindow(hLastActivePopupWnd);
//Detach the attached thread
AttachThreadInput(ForeGroundID, CurrentID, FALSE);
return retval;
}// End SetForegroundWindowEx
#endif
void raiseWindow(QWidget *w)
{
w->activateWindow();
w->raise();
#if 0
HWND wid = (HWND)w->effectiveWinId();
/* In the meantime we do our own attention grabbing */
if (!SetForegroundWindow(wid) && !SetForegroundWindowEx(wid)) {
OutputDebugString("SetForegroundWindow (ex) failed");
/* Yet another fallback which will not work on some
* versions and is not recommended by msdn */
if (!ShowWindow(wid, SW_SHOWNORMAL)) {
OutputDebugString("ShowWindow failed.");
}
}
/* Even if SetForgeoundWindow / SetForegroundWinowEx don't fail
* we sometimes are still not in the foreground. So we try yet
* another hack by using SetWindowPos */
if (!SetWindowPos(wid, HWND_TOPMOST, 0, 0, 0, 0,
SWP_NOMOVE | SWP_NOSIZE | SWP_SHOWWINDOW)) {
OutputDebugString("SetWindowPos failed.");
} else {
/* Without moving back to NOTOPMOST we just stay on top.
* Even if the user changes focus. */
SetWindowPos(wid, HWND_NOTOPMOST, 0, 0, 0, 0,
SWP_NOMOVE | SWP_NOSIZE | SWP_SHOWWINDOW);
}
#endif
}
QPixmap icon(QStyle::StandardPixmap which)
{
QPixmap pm = qApp->windowIcon().pixmap(48, 48);
if (which != QStyle::SP_CustomBase) {
const QIcon ic = qApp->style()->standardIcon(which);
QPainter painter(&pm);
const int emblemSize = 22;
painter.drawPixmap(pm.width() - emblemSize, 0,
ic.pixmap(emblemSize, emblemSize));
}
return pm;
}
void PinEntryDialog::slotTimeout()
{
_timed_out = true;
reject();
}
PinEntryDialog::PinEntryDialog(QWidget *parent, const char *name,
int timeout, bool modal, bool enable_quality_bar,
const QString &repeatString,
const QString &visibilityTT,
const QString &hideTT)
: QDialog(parent),
mRepeat(NULL),
_grabbed(false),
_disable_echo_allowed(true),
mVisibilityTT(visibilityTT),
mHideTT(hideTT),
mVisiActionEdit(NULL),
mVisiCB(NULL)
{
_timed_out = false;
if (modal) {
setWindowModality(Qt::ApplicationModal);
}
_icon = new QLabel(this);
_icon->setPixmap(icon());
_error = new QLabel(this);
QPalette pal;
pal.setColor(QPalette::WindowText, Qt::red);
_error->setPalette(pal);
_error->hide();
_desc = new QLabel(this);
_desc->hide();
_prompt = new QLabel(this);
_prompt->hide();
_edit = new PinLineEdit(this);
_edit->setMaxLength(256);
_edit->setMinimumWidth(_edit->fontMetrics().averageCharWidth()*20 + 48);
_edit->setEchoMode(QLineEdit::Password);
_prompt->setBuddy(_edit);
if (enable_quality_bar) {
_quality_bar_label = new QLabel(this);
_quality_bar_label->setAlignment(Qt::AlignVCenter);
_quality_bar = new QProgressBar(this);
_quality_bar->setAlignment(Qt::AlignCenter);
_have_quality_bar = true;
} else {
_have_quality_bar = false;
}
QDialogButtonBox *const buttons = new QDialogButtonBox(this);
buttons->setStandardButtons(QDialogButtonBox::Ok | QDialogButtonBox::Cancel);
_ok = buttons->button(QDialogButtonBox::Ok);
_cancel = buttons->button(QDialogButtonBox::Cancel);
_ok->setDefault(true);
if (style()->styleHint(QStyle::SH_DialogButtonBox_ButtonsHaveIcons)) {
_ok->setIcon(style()->standardIcon(QStyle::SP_DialogOkButton));
_cancel->setIcon(style()->standardIcon(QStyle::SP_DialogCancelButton));
}
if (timeout > 0) {
_timer = new QTimer(this);
connect(_timer, SIGNAL(timeout()), this, SLOT(slotTimeout()));
_timer->start(timeout * 1000);
} else {
_timer = NULL;
}
connect(buttons, SIGNAL(accepted()), this, SLOT(accept()));
connect(buttons, SIGNAL(rejected()), this, SLOT(reject()));
connect(_edit, SIGNAL(textChanged(QString)),
this, SLOT(updateQuality(QString)));
connect(_edit, SIGNAL(textChanged(QString)),
this, SLOT(textChanged(QString)));
connect(_edit, SIGNAL(backspacePressed()),
this, SLOT(onBackspace()));
QTimer::singleShot(0, _edit, SLOT(setFocus()));
QGridLayout *const grid = new QGridLayout(this);
int row = 1;
grid->addWidget(_error, row++, 1, 1, 2);
grid->addWidget(_desc, row++, 1, 1, 2);
//grid->addItem( new QSpacerItem( 0, _edit->height() / 10, QSizePolicy::Minimum, QSizePolicy::Fixed ), 1, 1 );
grid->addWidget(_prompt, row, 1);
grid->addWidget(_edit, row++, 2);
if (!repeatString.isNull()) {
mRepeat = new QLineEdit;
mRepeat->setMaxLength(256);
mRepeat->setEchoMode(QLineEdit::Password);
connect(mRepeat, SIGNAL(textChanged(QString)),
this, SLOT(textChanged(QString)));
QLabel *repeatLabel = new QLabel(repeatString);
repeatLabel->setBuddy(mRepeat);
grid->addWidget(repeatLabel, row, 1);
grid->addWidget(mRepeat, row++, 2);
setTabOrder(_edit, mRepeat);
setTabOrder(mRepeat, _ok);
}
if (enable_quality_bar) {
grid->addWidget(_quality_bar_label, row, 1);
grid->addWidget(_quality_bar, row++, 2);
}
/* Set up the show password action */
const QIcon visibilityIcon = QIcon::fromTheme(QLatin1String("visibility"));
const QIcon hideIcon = QIcon::fromTheme(QLatin1String("hint"));
const QIcon generateIcon = QIcon::fromTheme(QLatin1String("password-generate"));
#if QT_VERSION >= 0x050200
if (!generateIcon.isNull()) {
mGenerateActionEdit = _edit->addAction(generateIcon,
QLineEdit::LeadingPosition);
mGenerateActionEdit->setVisible(true);
mGenerateActionEdit->setToolTip(mGenerateTT);
connect(mGenerateActionEdit, SIGNAL(triggered()), this, SLOT(generatePin()));
}
if (!visibilityIcon.isNull() && !hideIcon.isNull()) {
mVisiActionEdit = _edit->addAction(visibilityIcon, QLineEdit::TrailingPosition);
mVisiActionEdit->setVisible(false);
mVisiActionEdit->setToolTip(mVisibilityTT);
connect(mVisiActionEdit, SIGNAL(triggered()), this, SLOT(toggleVisibility()));
} else
#endif
{
if (!mVisibilityTT.isNull()) {
mVisiCB = new QCheckBox(mVisibilityTT);
connect(mVisiCB, SIGNAL(toggled(bool)), this, SLOT(toggleVisibility()));
grid->addWidget(mVisiCB, row++, 1, 1, 2, Qt::AlignLeft);
}
}
grid->addWidget(buttons, ++row, 0, 1, 3);
grid->addWidget(_icon, 0, 0, row - 1, 1, Qt::AlignVCenter | Qt::AlignLeft);
grid->setSizeConstraint(QLayout::SetFixedSize);
connect(qApp, SIGNAL(focusChanged(QWidget *, QWidget *)),
this, SLOT(focusChanged(QWidget *, QWidget *)));
}
void PinEntryDialog::showEvent(QShowEvent *event)
{
QDialog::showEvent(event);
raiseWindow(this);
}
void PinEntryDialog::setDescription(const QString &txt)
{
_desc->setVisible(!txt.isEmpty());
_desc->setText(txt);
#ifndef QT_NO_ACCESSIBILITY
_desc->setAccessibleDescription(txt);
#endif
_icon->setPixmap(icon());
- setError(QString::null);
+ setError(QString());
}
QString PinEntryDialog::description() const
{
return _desc->text();
}
void PinEntryDialog::setError(const QString &txt)
{
if (!txt.isNull()) {
_icon->setPixmap(icon(QStyle::SP_MessageBoxCritical));
}
_error->setText(txt);
#ifndef QT_NO_ACCESSIBILITY
_error->setAccessibleDescription(txt);
#endif
_error->setVisible(!txt.isEmpty());
}
QString PinEntryDialog::error() const
{
return _error->text();
}
void PinEntryDialog::setPin(const QString &txt)
{
_edit->setText(txt);
}
QString PinEntryDialog::pin() const
{
return _edit->text();
}
void PinEntryDialog::setPrompt(const QString &txt)
{
_prompt->setText(txt);
_prompt->setVisible(!txt.isEmpty());
if (txt.contains("PIN"))
_disable_echo_allowed = false;
}
QString PinEntryDialog::prompt() const
{
return _prompt->text();
}
void PinEntryDialog::setOkText(const QString &txt)
{
_ok->setText(txt);
#ifndef QT_NO_ACCESSIBILITY
_ok->setAccessibleDescription(txt);
#endif
_ok->setVisible(!txt.isEmpty());
}
void PinEntryDialog::setCancelText(const QString &txt)
{
_cancel->setText(txt);
#ifndef QT_NO_ACCESSIBILITY
_cancel->setAccessibleDescription(txt);
#endif
_cancel->setVisible(!txt.isEmpty());
}
void PinEntryDialog::setQualityBar(const QString &txt)
{
if (_have_quality_bar) {
_quality_bar_label->setText(txt);
#ifndef QT_NO_ACCESSIBILITY
_quality_bar_label->setAccessibleDescription(txt);
#endif
}
}
void PinEntryDialog::setQualityBarTT(const QString &txt)
{
if (_have_quality_bar) {
_quality_bar->setToolTip(txt);
}
}
void PinEntryDialog::setGenpinLabel(const QString &txt)
{
if (txt.isEmpty()) {
mGenerateActionEdit->setVisible(false);
} else {
mGenerateActionEdit->setText(txt);
mGenerateActionEdit->setVisible(true);
}
}
void PinEntryDialog::setGenpinTT(const QString &txt)
{
mGenerateActionEdit->setToolTip(txt);
}
void PinEntryDialog::onBackspace()
{
if (_disable_echo_allowed) {
_edit->setEchoMode(QLineEdit::NoEcho);
if (mRepeat) {
mRepeat->setEchoMode(QLineEdit::NoEcho);
}
}
}
void PinEntryDialog::updateQuality(const QString &txt)
{
int length;
int percent;
QPalette pal;
if (_timer) {
_timer->stop();
}
_disable_echo_allowed = false;
if (!_have_quality_bar || !_pinentry_info) {
return;
}
const QByteArray utf8_pin = txt.toUtf8();
const char *pin = utf8_pin.constData();
length = strlen(pin);
percent = length ? pinentry_inq_quality(_pinentry_info, pin, length) : 0;
if (!length) {
_quality_bar->reset();
} else {
pal = _quality_bar->palette();
if (percent < 0) {
pal.setColor(QPalette::Highlight, QColor("red"));
percent = -percent;
} else {
pal.setColor(QPalette::Highlight, QColor("green"));
}
_quality_bar->setPalette(pal);
_quality_bar->setValue(percent);
}
}
void PinEntryDialog::setPinentryInfo(pinentry_t peinfo)
{
_pinentry_info = peinfo;
}
void PinEntryDialog::focusChanged(QWidget *old, QWidget *now)
{
// Grab keyboard. It might be a little weird to do it here, but it works!
// Previously this code was in showEvent, but that did not work in Qt4.
if (!_pinentry_info || _pinentry_info->grab) {
if (_grabbed && old && (old == _edit || old == mRepeat)) {
old->releaseKeyboard();
_grabbed = false;
}
if (!_grabbed && now && (now == _edit || now == mRepeat)) {
now->grabKeyboard();
_grabbed = true;
}
}
}
void PinEntryDialog::textChanged(const QString &text)
{
Q_UNUSED(text);
if (mRepeat && mRepeat->text() == _edit->text()) {
_ok->setEnabled(true);
_ok->setToolTip(QString());
} else if (mRepeat) {
_ok->setEnabled(false);
_ok->setToolTip(mRepeatError);
}
if (mVisiActionEdit && sender() == _edit) {
mVisiActionEdit->setVisible(!_edit->text().isEmpty());
}
if (mGenerateActionEdit) {
mGenerateActionEdit->setVisible(_edit->text().isEmpty() &&
_pinentry_info->genpin_label);
}
}
void PinEntryDialog::generatePin()
{
const char *pin = pinentry_inq_genpin(_pinentry_info);
if (pin) {
if (_edit->echoMode() == QLineEdit::Password) {
toggleVisibility();
}
const auto pinStr = QString::fromUtf8(pin);
_edit->setText(pinStr);
mRepeat->setText(pinStr);
}
}
void PinEntryDialog::toggleVisibility()
{
if (sender() != mVisiCB) {
if (_edit->echoMode() == QLineEdit::Password) {
mVisiActionEdit->setIcon(QIcon::fromTheme(QLatin1String("hint")));
mVisiActionEdit->setToolTip(mHideTT);
_edit->setEchoMode(QLineEdit::Normal);
if (mRepeat) {
mRepeat->setEchoMode(QLineEdit::Normal);
}
} else {
mVisiActionEdit->setIcon(QIcon::fromTheme(QLatin1String("visibility")));
mVisiActionEdit->setToolTip(mVisibilityTT);
_edit->setEchoMode(QLineEdit::Password);
if (mRepeat) {
mRepeat->setEchoMode(QLineEdit::Password);
}
}
} else {
if (mVisiCB->isChecked()) {
if (mRepeat) {
mRepeat->setEchoMode(QLineEdit::Normal);
}
_edit->setEchoMode(QLineEdit::Normal);
} else {
if (mRepeat) {
mRepeat->setEchoMode(QLineEdit::Password);
}
_edit->setEchoMode(QLineEdit::Password);
}
}
}
QString PinEntryDialog::repeatedPin() const
{
if (mRepeat) {
return mRepeat->text();
}
return QString();
}
bool PinEntryDialog::timedOut() const
{
return _timed_out;
}
void PinEntryDialog::setRepeatErrorText(const QString &err)
{
mRepeatError = err;
}
#include "pinentrydialog.moc"

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