diff --git a/src/crypto/gui/signencryptwidget.cpp b/src/crypto/gui/signencryptwidget.cpp index f00a5c051..56244fc06 100644 --- a/src/crypto/gui/signencryptwidget.cpp +++ b/src/crypto/gui/signencryptwidget.cpp @@ -1,648 +1,649 @@ /* crypto/gui/signencryptwidget.cpp This file is part of Kleopatra, the KDE keymanager SPDX-FileCopyrightText: 2016 Bundesamt für Sicherheit in der Informationstechnik SPDX-FileContributor: Intevation GmbH SPDX-License-Identifier: GPL-2.0-or-later */ #include "signencryptwidget.h" #include "kleopatra_debug.h" #include "certificatelineedit.h" #include "settings.h" #include "unknownrecipientwidget.h" #include "commands/detailscommand.h" #include "dialogs/certificateselectiondialog.h" #include "dialogs/groupdetailsdialog.h" #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include using namespace Kleo; using namespace Kleo::Dialogs; using namespace GpgME; namespace { class SignCertificateFilter: public DefaultKeyFilter { public: SignCertificateFilter(GpgME::Protocol proto) : DefaultKeyFilter() { setRevoked(DefaultKeyFilter::NotSet); setExpired(DefaultKeyFilter::NotSet); setHasSecret(DefaultKeyFilter::Set); setCanSign(DefaultKeyFilter::Set); if (proto == GpgME::OpenPGP) { setIsOpenPGP(DefaultKeyFilter::Set); } else if (proto == GpgME::CMS) { setIsOpenPGP(DefaultKeyFilter::NotSet); } } }; class EncryptCertificateFilter: public DefaultKeyFilter { public: EncryptCertificateFilter(GpgME::Protocol proto): DefaultKeyFilter() { setRevoked(DefaultKeyFilter::NotSet); setExpired(DefaultKeyFilter::NotSet); setCanEncrypt(DefaultKeyFilter::Set); if (proto == GpgME::OpenPGP) { setIsOpenPGP(DefaultKeyFilter::Set); } else if (proto == GpgME::CMS) { setIsOpenPGP(DefaultKeyFilter::NotSet); } } }; class EncryptSelfCertificateFilter: public EncryptCertificateFilter { public: EncryptSelfCertificateFilter(GpgME::Protocol proto): EncryptCertificateFilter(proto) { setRevoked(DefaultKeyFilter::NotSet); setExpired(DefaultKeyFilter::NotSet); setCanEncrypt(DefaultKeyFilter::Set); setHasSecret(DefaultKeyFilter::Set); } }; } SignEncryptWidget::SignEncryptWidget(QWidget *parent, bool sigEncExclusive) : QWidget(parent), mModel(AbstractKeyListModel::createFlatKeyListModel(this)), mIsExclusive(sigEncExclusive) { auto lay = new QVBoxLayout(this); lay->setContentsMargins(0, 0, 0, 0); mModel->useKeyCache(true, KeyList::IncludeGroups); const bool haveSecretKeys = !KeyCache::instance()->secretKeys().empty(); const bool havePublicKeys = !KeyCache::instance()->keys().empty(); /* The signature selection */ auto sigLay = new QHBoxLayout; auto sigGrp = new QGroupBox(i18nc("@title:group", "Prove authenticity (sign)")); mSigChk = new QCheckBox(i18n("Sign as:")); mSigChk->setEnabled(haveSecretKeys); mSigChk->setChecked(haveSecretKeys); mSigSelect = new KeySelectionCombo(); mSigSelect->setEnabled(mSigChk->isChecked()); sigLay->addWidget(mSigChk); sigLay->addWidget(mSigSelect, 1); sigGrp->setLayout(sigLay); lay->addWidget(sigGrp); connect(mSigChk, &QCheckBox::toggled, mSigSelect, &QWidget::setEnabled); connect(mSigChk, &QCheckBox::toggled, this, &SignEncryptWidget::updateOp); connect(mSigSelect, &KeySelectionCombo::currentKeyChanged, this, &SignEncryptWidget::updateOp); // Recipient selection auto encBoxLay = new QVBoxLayout; auto encBox = new QGroupBox(i18nc("@title:group", "Encrypt")); encBox->setLayout(encBoxLay); auto recipientGrid = new QGridLayout; // Own key mEncSelfChk = new QCheckBox(i18n("Encrypt for me:")); mEncSelfChk->setEnabled(haveSecretKeys); mEncSelfChk->setChecked(haveSecretKeys); mSelfSelect = new KeySelectionCombo(); mSelfSelect->setEnabled(mEncSelfChk->isChecked()); recipientGrid->addWidget(mEncSelfChk, 0, 0); recipientGrid->addWidget(mSelfSelect, 0, 1); // Checkbox for other keys mEncOtherChk = new QCheckBox(i18n("Encrypt for others:")); mEncOtherChk->setEnabled(havePublicKeys); mEncOtherChk->setChecked(havePublicKeys); recipientGrid->addWidget(mEncOtherChk, 1, 0, Qt::AlignTop); connect(mEncOtherChk, &QCheckBox::toggled, this, [this](bool toggled) { for (CertificateLineEdit *edit : std::as_const(mRecpWidgets)) { edit->setEnabled(toggled); } updateOp(); }); mRecpLayout = new QVBoxLayout; recipientGrid->addLayout(mRecpLayout, 1, 1); + recipientGrid->setRowStretch(2, 1); // Scroll area for other keys auto recipientWidget = new QWidget; auto recipientScroll = new QScrollArea; recipientWidget->setLayout(recipientGrid); recipientScroll->setWidget(recipientWidget); recipientScroll->setWidgetResizable(true); recipientScroll->setSizeAdjustPolicy(QAbstractScrollArea::AdjustToContentsOnFirstShow); recipientScroll->setFrameStyle(QFrame::NoFrame); recipientScroll->setFocusPolicy(Qt::NoFocus); recipientGrid->setContentsMargins(0, 0, 0, 0); encBoxLay->addWidget(recipientScroll, 1); auto bar = recipientScroll->verticalScrollBar(); connect (bar, &QScrollBar::rangeChanged, this, [bar] (int, int max) { bar->setValue(max); }); addRecipientWidget(); // Checkbox for password mSymmetric = new QCheckBox(i18n("Encrypt with password. Anyone you share the password with can read the data.")); mSymmetric->setToolTip(i18nc("Tooltip information for symmetric encryption", "Additionally to the keys of the recipients you can encrypt your data with a password. " "Anyone who has the password can read the data without any secret key. " "Using a password is less secure then public key cryptography. Even if you pick a very strong password.")); mSymmetric->setChecked(!havePublicKeys); encBoxLay->addWidget(mSymmetric); // Connect it connect(mEncSelfChk, &QCheckBox::toggled, mSelfSelect, &QWidget::setEnabled); connect(mEncSelfChk, &QCheckBox::toggled, this, &SignEncryptWidget::updateOp); connect(mSymmetric, &QCheckBox::toggled, this, &SignEncryptWidget::updateOp); connect(mSelfSelect, &KeySelectionCombo::currentKeyChanged, this, &SignEncryptWidget::updateOp); if (mIsExclusive) { connect(mEncOtherChk, &QCheckBox::toggled, this, [this](bool value) { if (mCurrentProto != GpgME::CMS) { return; } if (value) { mSigChk->setChecked(false); } }); connect(mEncSelfChk, &QCheckBox::toggled, this, [this](bool value) { if (mCurrentProto != GpgME::CMS) { return; } if (value) { mSigChk->setChecked(false); } }); connect(mSigChk, &QCheckBox::toggled, this, [this](bool value) { if (mCurrentProto != GpgME::CMS) { return; } if (value) { mEncSelfChk->setChecked(false); mEncOtherChk->setChecked(false); } }); } // Ensure that the mSigChk is aligned togehter with the encryption check boxes. mSigChk->setMinimumWidth(qMax(mEncOtherChk->width(), mEncSelfChk->width())); lay->addWidget(encBox); connect(KeyCache::instance().get(), &Kleo::KeyCache::keysMayHaveChanged, this, [this]() { const bool haveSecretKeys = !KeyCache::instance()->secretKeys().empty(); const bool havePublicKeys = !KeyCache::instance()->keys().empty(); mSigChk->setEnabled(haveSecretKeys); mEncSelfChk->setEnabled(haveSecretKeys); mEncOtherChk->setEnabled(havePublicKeys); }); loadKeys(); onProtocolChanged(); updateOp(); } void SignEncryptWidget::setSignAsText(const QString &text) { mSigChk->setText(text); } void SignEncryptWidget::setEncryptForMeText(const QString &text) { mEncSelfChk->setText(text); } void SignEncryptWidget::setEncryptForOthersText(const QString &text) { mEncOtherChk->setText(text); } void SignEncryptWidget::setEncryptWithPasswordText(const QString& text) { mSymmetric->setText(text); } CertificateLineEdit *SignEncryptWidget::addRecipientWidget() { auto certSel = new CertificateLineEdit(mModel, this, new EncryptCertificateFilter(mCurrentProto)); certSel->setEnabled(mEncOtherChk->isChecked()); mRecpWidgets << certSel; if (mRecpLayout->count() > 0) { auto lastWidget = mRecpLayout->itemAt(mRecpLayout->count() - 1)->widget(); setTabOrder(lastWidget, certSel); } mRecpLayout->addWidget(certSel); connect(certSel, &CertificateLineEdit::keyChanged, this, &SignEncryptWidget::recipientsChanged); connect(certSel, &CertificateLineEdit::wantsRemoval, this, &SignEncryptWidget::recpRemovalRequested); connect(certSel, &CertificateLineEdit::editingStarted, this, &SignEncryptWidget::recipientsChanged); connect(certSel, &CertificateLineEdit::dialogRequested, this, [this, certSel] () { dialogRequested(certSel); }); return certSel; } void SignEncryptWidget::addRecipient(const Key &key) { CertificateLineEdit *certSel = addRecipientWidget(); if (!key.isNull()) { certSel->setKey(key); mAddedKeys << key; } } void SignEncryptWidget::addRecipient(const KeyGroup &group) { CertificateLineEdit *certSel = addRecipientWidget(); if (!group.isNull()) { certSel->setGroup(group); mAddedGroups << group; } } void SignEncryptWidget::dialogRequested(CertificateLineEdit *certificateLineEdit) { if (!certificateLineEdit->key().isNull()) { auto cmd = new Commands::DetailsCommand(certificateLineEdit->key(), nullptr); cmd->start(); return; } if (!certificateLineEdit->group().isNull()) { auto dlg = new GroupDetailsDialog; dlg->setAttribute(Qt::WA_DeleteOnClose); dlg->setGroup(certificateLineEdit->group()); dlg->show(); return; } auto const dlg = new CertificateSelectionDialog(this); dlg->setOptions(CertificateSelectionDialog::Options( CertificateSelectionDialog::MultiSelection | CertificateSelectionDialog::EncryptOnly | CertificateSelectionDialog::optionsFromProtocol(mCurrentProto) | CertificateSelectionDialog::IncludeGroups)); if (dlg->exec()) { const std::vector keys = dlg->selectedCertificates(); const std::vector groups = dlg->selectedGroups(); if (keys.size() == 0 && groups.size() == 0) { return; } bool isFirstItem = true; for (const Key &key : keys) { if (isFirstItem) { certificateLineEdit->setKey(key); isFirstItem = false; } else { addRecipient(key); } } for (const KeyGroup &group : groups) { if (isFirstItem) { certificateLineEdit->setGroup(group); isFirstItem = false; } else { addRecipient(group); } } } delete dlg; recipientsChanged(); } void SignEncryptWidget::clearAddedRecipients() { for (auto w: std::as_const(mUnknownWidgets)) { mRecpLayout->removeWidget(w); delete w; } for (auto &key: std::as_const(mAddedKeys)) { removeRecipient(key); } for (auto &group: std::as_const(mAddedGroups)) { removeRecipient(group); } } void SignEncryptWidget::addUnknownRecipient(const char *keyID) { auto unknownWidget = new UnknownRecipientWidget(keyID); mUnknownWidgets << unknownWidget; if (mRecpLayout->count() > 0) { auto lastWidget = mRecpLayout->itemAt(mRecpLayout->count() - 1)->widget(); setTabOrder(lastWidget, unknownWidget); } mRecpLayout->addWidget(unknownWidget); connect(KeyCache::instance().get(), &Kleo::KeyCache::keysMayHaveChanged, this, [this] () { // Check if any unknown recipient can now be found. for (auto w: mUnknownWidgets) { auto key = KeyCache::instance()->findByKeyIDOrFingerprint(w->keyID().toLatin1().constData()); if (key.isNull()) { std::vector subids; subids.push_back(std::string(w->keyID().toLatin1().constData())); for (const auto &subkey: KeyCache::instance()->findSubkeysByKeyID(subids)) { key = subkey.parent(); } } if (key.isNull()) { continue; } // Key is now available replace by line edit. qCDebug(KLEOPATRA_LOG) << "Removing widget for keyid: " << w->keyID(); mRecpLayout->removeWidget(w); mUnknownWidgets.removeAll(w); delete w; addRecipient(key); } }); } void SignEncryptWidget::recipientsChanged() { const bool hasEmptyRecpWidget = std::any_of(std::cbegin(mRecpWidgets), std::cend(mRecpWidgets), [](auto w) { return w->isEmpty(); }); if (!hasEmptyRecpWidget) { addRecipientWidget(); } updateOp(); } Key SignEncryptWidget::signKey() const { if (mSigSelect->isEnabled()) { return mSigSelect->currentKey(); } return Key(); } Key SignEncryptWidget::selfKey() const { if (mSelfSelect->isEnabled()) { return mSelfSelect->currentKey(); } return Key(); } std::vector SignEncryptWidget::recipients() const { std::vector ret; for (const CertificateLineEdit *w : std::as_const(mRecpWidgets)) { if (!w->isEnabled()) { // If one is disabled, all are disabled. break; } const Key k = w->key(); const KeyGroup g = w->group(); if (!k.isNull()) { ret.push_back(k); } else if (!g.isNull()) { const auto keys = g.keys(); std::copy(keys.begin(), keys.end(), std::back_inserter(ret)); } } const Key k = selfKey(); if (!k.isNull()) { ret.push_back(k); } return ret; } bool SignEncryptWidget::isDeVsAndValid() const { if (!signKey().isNull() && (!IS_DE_VS(signKey()) || keyValidity(signKey()) < GpgME::UserID::Validity::Full)) { return false; } if (!selfKey().isNull() && (!IS_DE_VS(selfKey()) || keyValidity(selfKey()) < GpgME::UserID::Validity::Full)) { return false; } for (const auto &key: recipients()) { if (!IS_DE_VS(key) || keyValidity(key) < GpgME::UserID::Validity::Full) { return false; } } return true; } void SignEncryptWidget::updateOp() { const Key sigKey = signKey(); const std::vector recp = recipients(); QString newOp; if (!sigKey.isNull() && (!recp.empty() || encryptSymmetric())) { newOp = i18nc("@action", "Sign / Encrypt"); } else if (!recp.empty() || encryptSymmetric()) { newOp = i18nc("@action", "Encrypt"); } else if (!sigKey.isNull()) { newOp = i18nc("@action", "Sign"); } else { newOp = QString(); } mOp = newOp; Q_EMIT operationChanged(mOp); Q_EMIT keysChanged(); } QString SignEncryptWidget::currentOp() const { return mOp; } void SignEncryptWidget::recpRemovalRequested(CertificateLineEdit *w) { if (!w) { return; } const int emptyEdits = std::count_if(std::cbegin(mRecpWidgets), std::cend(mRecpWidgets), [](auto w) { return w->isEmpty(); }); if (emptyEdits > 1) { if (w->hasFocus()) { const int index = mRecpLayout->indexOf(w); const auto focusWidget = (index < mRecpLayout->count() - 1) ? mRecpLayout->itemAt(index + 1)->widget() : mRecpLayout->itemAt(mRecpLayout->count() - 2)->widget(); focusWidget->setFocus(); } mRecpLayout->removeWidget(w); mRecpWidgets.removeAll(w); w->deleteLater(); } } void SignEncryptWidget::removeRecipient(const GpgME::Key &key) { for (CertificateLineEdit *edit: std::as_const(mRecpWidgets)) { const auto editKey = edit->key(); if (key.isNull() && editKey.isNull()) { recpRemovalRequested(edit); return; } if (editKey.primaryFingerprint() && key.primaryFingerprint() && !strcmp(editKey.primaryFingerprint(), key.primaryFingerprint())) { recpRemovalRequested(edit); return; } } } void SignEncryptWidget::removeRecipient(const KeyGroup &group) { for (CertificateLineEdit *edit: std::as_const(mRecpWidgets)) { const auto editGroup = edit->group(); if (group.isNull() && editGroup.isNull()) { recpRemovalRequested(edit); return; } if (editGroup.name() == group.name()) { recpRemovalRequested(edit); return; } } } bool SignEncryptWidget::encryptSymmetric() const { return mSymmetric->isChecked(); } void SignEncryptWidget::loadKeys() { KConfigGroup keys(KSharedConfig::openConfig(), "SignEncryptKeys"); auto cache = KeyCache::instance(); mSigSelect->setDefaultKey(keys.readEntry("SigningKey", QString())); mSelfSelect->setDefaultKey(keys.readEntry("EncryptKey", QString())); } void SignEncryptWidget::saveOwnKeys() const { KConfigGroup keys(KSharedConfig::openConfig(), "SignEncryptKeys"); auto sigKey = mSigSelect->currentKey(); auto encKey = mSelfSelect->currentKey(); if (!sigKey.isNull()) { keys.writeEntry("SigningKey", sigKey.primaryFingerprint()); } if (!encKey.isNull()) { keys.writeEntry("EncryptKey", encKey.primaryFingerprint()); } } void SignEncryptWidget::setSigningChecked(bool value) { mSigChk->setChecked(value && !KeyCache::instance()->secretKeys().empty()); } void SignEncryptWidget::setEncryptionChecked(bool checked) { if (checked) { const bool haveSecretKeys = !KeyCache::instance()->secretKeys().empty(); const bool havePublicKeys = !KeyCache::instance()->keys().empty(); mEncSelfChk->setChecked(haveSecretKeys); mEncOtherChk->setChecked(havePublicKeys); mSymmetric->setChecked(!havePublicKeys); } else { mEncSelfChk->setChecked(false); mEncOtherChk->setChecked(false); mSymmetric->setChecked(false); } } void SignEncryptWidget::setProtocol(GpgME::Protocol proto) { if (mCurrentProto == proto) { return; } mCurrentProto = proto; onProtocolChanged(); } void Kleo::SignEncryptWidget::onProtocolChanged() { mSigSelect->setKeyFilter(std::shared_ptr(new SignCertificateFilter(mCurrentProto))); mSelfSelect->setKeyFilter(std::shared_ptr(new EncryptSelfCertificateFilter(mCurrentProto))); const auto encFilter = std::shared_ptr(new EncryptCertificateFilter(mCurrentProto)); for (CertificateLineEdit *edit : std::as_const(mRecpWidgets)) { edit->setKeyFilter(encFilter); } if (mIsExclusive) { mSymmetric->setDisabled(mCurrentProto == GpgME::CMS); if (mSymmetric->isChecked() && mCurrentProto == GpgME::CMS) { mSymmetric->setChecked(false); } if (mSigChk->isChecked() && mCurrentProto == GpgME::CMS && (mEncSelfChk->isChecked() || mEncOtherChk->isChecked())) { mSigChk->setChecked(false); } } } bool SignEncryptWidget::validate() { QStringList unresolvedRecipients; for (const auto edit: std::as_const(mRecpWidgets)) { if (edit->isEnabled() && !edit->isEmpty() && edit->key().isNull() && edit->group().isNull()) { unresolvedRecipients.push_back(edit->text().toHtmlEscaped()); } } if (!unresolvedRecipients.isEmpty()) { KMessageBox::errorList(this, i18n("Could not find a key for the following recipients:"), unresolvedRecipients, i18n("Failed to find some keys")); } return unresolvedRecipients.isEmpty(); }