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Add some password-related feature (#92)

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* Add Standalone Password Generator. Closes #18 
* Add an entropy meter for passwords. Closes #84
* Don't require password repeat when it is visible. Fixes #27
This commit is contained in:
TheZ3ro 2016-11-24 03:59:24 +01:00 • committed by Jonathan White
parent 19a960856c
commit b2f3cc6903
28 changed files with 28401 additions and 195 deletions
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96
src/gui/PasswordGeneratorWidget.cpp
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@ -34,18 +34,23 @@ PasswordGeneratorWidget::PasswordGeneratorWidget(QWidget* parent)
m_ui->togglePasswordButton->setIcon(filePath()->onOffIcon("actions", "password-show"));
connect(m_ui->editNewPassword->lineEdit(), SIGNAL(textChanged(QString)), SLOT(updateApplyEnabled(QString)));
connect(m_ui->togglePasswordButton, SIGNAL(toggled(bool)), m_ui->editNewPassword, SLOT(setEcho(bool)));
connect(m_ui->buttonApply, SIGNAL(clicked()), SLOT(emitNewPassword()));
connect(m_ui->buttonApply, SIGNAL(clicked()), SLOT(saveSettings()));
connect(m_ui->editNewPassword, SIGNAL(textChanged(QString)), SLOT(updateApplyEnabled(QString)));
connect(m_ui->editNewPassword, SIGNAL(textChanged(QString)), SLOT(updatePasswordStrength(QString)));
connect(m_ui->togglePasswordButton, SIGNAL(toggled(bool)), SLOT(togglePasswordShown(bool)));
connect(m_ui->buttonApply, SIGNAL(clicked()), SLOT(applyPassword()));
connect(m_ui->buttonGenerate, SIGNAL(clicked()), SLOT(generatePassword()));
connect(m_ui->sliderLength, SIGNAL(valueChanged(int)), SLOT(sliderMoved()));
connect(m_ui->spinBoxLength, SIGNAL(valueChanged(int)), SLOT(spinBoxChanged()));
connect(m_ui->optionButtons, SIGNAL(buttonClicked(int)), SLOT(updateGenerator()));
m_ui->editNewPassword->setGenerator(m_generator.data());
// set font size of password quality and entropy labels dynamically to 80% of the default font size
QFont defaultFont;
defaultFont.setPointSize(static_cast<int>(defaultFont.pointSize() * 0.8f));
m_ui->entropyLabel->setFont(defaultFont);
m_ui->strengthLabel->setFont(defaultFont);
loadSettings();
reset();
}
@ -82,17 +87,28 @@ void PasswordGeneratorWidget::saveSettings()
void PasswordGeneratorWidget::reset()
{
m_ui->editNewPassword->lineEdit()->setText("");
m_ui->togglePasswordButton->setChecked(config()->get("security/passwordscleartext").toBool());
m_ui->editNewPassword->setText("");
setStandaloneMode(false);
togglePasswordShown(config()->get("security/passwordscleartext").toBool());
updateGenerator();
}
void PasswordGeneratorWidget::setStandaloneMode(bool standalone)
{
if (standalone) {
m_ui->buttonApply->setText(tr("Close"));
togglePasswordShown(true);
} else {
m_ui->buttonApply->setText(tr("Apply"));
}
}
void PasswordGeneratorWidget::regeneratePassword()
{
if (m_generator->isValid()) {
QString password = m_generator->generatePassword();
m_ui->editNewPassword->setEditText(password);
m_ui->editNewPassword->setText(password);
updatePasswordStrength(password);
}
}
@ -101,9 +117,30 @@ void PasswordGeneratorWidget::updateApplyEnabled(const QString& password)
m_ui->buttonApply->setEnabled(!password.isEmpty());
}
void PasswordGeneratorWidget::emitNewPassword()
void PasswordGeneratorWidget::updatePasswordStrength(const QString& password)
{
Q_EMIT newPassword(m_ui->editNewPassword->lineEdit()->text());
double entropy = m_generator->calculateEntropy(password);
m_ui->entropyLabel->setText(tr("Entropy: %1 bit").arg(QString::number(entropy, 'f', 2)));
if (entropy > m_ui->entropyProgressBar->maximum()) {
entropy = m_ui->entropyProgressBar->maximum();
}
m_ui->entropyProgressBar->setValue(entropy);
colorStrengthIndicator(entropy);
}
void PasswordGeneratorWidget::generatePassword()
{
QString password = m_generator->generatePassword();
m_ui->editNewPassword->setText(password);
}
void PasswordGeneratorWidget::applyPassword()
{
saveSettings();
Q_EMIT appliedPassword(m_ui->editNewPassword->text());
Q_EMIT dialogTerminated();
}
void PasswordGeneratorWidget::sliderMoved()
@ -133,6 +170,41 @@ void PasswordGeneratorWidget::spinBoxChanged()
updateGenerator();
}
void PasswordGeneratorWidget::togglePasswordShown(bool showing)
{
m_ui->editNewPassword->setShowPassword(showing);
bool blockSignals = m_ui->togglePasswordButton->blockSignals(true);
m_ui->togglePasswordButton->setChecked(showing);
m_ui->togglePasswordButton->blockSignals(blockSignals);
}
void PasswordGeneratorWidget::colorStrengthIndicator(double entropy)
{
// Take the existing stylesheet and convert the text and background color to arguments
QString style = m_ui->entropyProgressBar->styleSheet();
QRegularExpression re("(QProgressBar::chunk\\s*\\{.*?background-color:)[^;]+;",
QRegularExpression::CaseInsensitiveOption |
QRegularExpression::DotMatchesEverythingOption);
style.replace(re, "\\1 %1;");
// Set the color and background based on entropy
// colors are taking from the KDE breeze palette
// <https://community.kde.org/KDE_Visual_Design_Group/HIG/Color>
if (entropy < 35) {
m_ui->entropyProgressBar->setStyleSheet(style.arg("#c0392b"));
m_ui->strengthLabel->setText(tr("Password Quality: %1").arg(tr("Poor")));
} else if (entropy >= 35 && entropy < 55) {
m_ui->entropyProgressBar->setStyleSheet(style.arg("#f39c1f"));
m_ui->strengthLabel->setText(tr("Password Quality: %1").arg(tr("Weak")));
} else if (entropy >= 55 && entropy < 100) {
m_ui->entropyProgressBar->setStyleSheet(style.arg("#11d116"));
m_ui->strengthLabel->setText(tr("Password Quality: %1").arg(tr("Good")));
} else {
m_ui->entropyProgressBar->setStyleSheet(style.arg("#27ae60"));
m_ui->strengthLabel->setText(tr("Password Quality: %1").arg(tr("Excellent")));
}
}
PasswordGenerator::CharClasses PasswordGeneratorWidget::charClasses()
{
PasswordGenerator::CharClasses classes;