mirror of
https://github.com/JakubMelka/PDF4QT.git
synced 2025-02-24 23:47:49 +01:00
Signature plugin: sign dialog + verification
This commit is contained in:
parent
e492b53a7b
commit
4d8d916c3f
@ -43,13 +43,15 @@ SOURCES += \
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certificatemanager.cpp \
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certificatemanagerdialog.cpp \
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createcertificatedialog.cpp \
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signatureplugin.cpp
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signatureplugin.cpp \
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signdialog.cpp
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HEADERS += \
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certificatemanager.h \
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certificatemanagerdialog.h \
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createcertificatedialog.h \
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signatureplugin.h
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signatureplugin.h \
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signdialog.h
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CONFIG += force_debug_info
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@ -61,5 +63,6 @@ RESOURCES += \
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FORMS += \
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certificatemanagerdialog.ui \
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createcertificatedialog.ui
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createcertificatedialog.ui \
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signdialog.ui
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@ -132,6 +132,12 @@ void CertificateManager::createCertificate(const NewCertificateInfo& info)
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}
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}
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QFileInfoList CertificateManager::getCertificates()
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{
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QDir directory(getCertificateDirectory());
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return directory.entryInfoList(QStringList() << "*.pfx", QDir::Files | QDir::NoDotAndDotDot | QDir::Readable, QDir::Name);
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}
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QString CertificateManager::getCertificateDirectory()
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{
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QDir directory(QStandardPaths::standardLocations(QStandardPaths::AppDataLocation).front() + "/certificates/");
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@ -156,4 +162,32 @@ QString CertificateManager::generateCertificateFileName()
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return QString();
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}
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bool CertificateManager::isCertificateValid(QString fileName, QString password)
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{
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QFile file(fileName);
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if (file.open(QFile::ReadOnly))
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{
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QByteArray data = file.readAll();
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file.close();
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openssl_ptr<BIO> pksBuffer(BIO_new(BIO_s_mem()), &BIO_free_all);
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BIO_write(pksBuffer.get(), data.constData(), data.length());
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openssl_ptr<PKCS12> pkcs12(d2i_PKCS12_bio(pksBuffer.get(), nullptr), &PKCS12_free);
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if (pkcs12)
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{
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const char* passwordPointer = nullptr;
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QByteArray passwordByteArray = password.isEmpty() ? QByteArray() : password.toUtf8();
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if (!passwordByteArray.isEmpty())
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{
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passwordPointer = passwordByteArray.constData();
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}
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return PKCS12_parse(pkcs12.get(), passwordPointer, nullptr, nullptr, nullptr) == 1;
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}
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}
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return false;
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}
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} // namespace pdfplugin
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@ -19,6 +19,7 @@
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#define CERTIFICATEMANAGER_H
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#include <QString>
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#include <QFileInfoList>
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namespace pdfplugin
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{
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@ -46,8 +47,10 @@ public:
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void createCertificate(const NewCertificateInfo& info);
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static QFileInfoList getCertificates();
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static QString getCertificateDirectory();
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static QString generateCertificateFileName();
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static bool isCertificateValid(QString fileName, QString password);
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};
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} // namespace pdfplugin
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@ -22,6 +22,7 @@
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#include "pdfpagecontenteditorstylesettings.h"
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#include "pdfdocumentbuilder.h"
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#include "certificatemanagerdialog.h"
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#include "signdialog.h"
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#include <QAction>
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#include <QToolButton>
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@ -156,6 +157,7 @@ void SignaturePlugin::setWidget(pdf::PDFWidget* widget)
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connect(clearAction, &QAction::triggered, &m_scene, &pdf::PDFPageContentScene::clear);
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connect(activateAction, &QAction::triggered, this, &SignaturePlugin::setActive);
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connect(signElectronicallyAction, &QAction::triggered, this, &SignaturePlugin::onSignElectronically);
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connect(signDigitallyAction, &QAction::triggered, this, &SignaturePlugin::onSignDigitally);
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connect(certificatesAction, &QAction::triggered, this, &SignaturePlugin::onOpenCertificatesManager);
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updateActions();
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@ -305,6 +307,28 @@ void SignaturePlugin::onSignElectronically()
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}
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}
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void SignaturePlugin::onSignDigitally()
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{
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// Jakub Melka: do we have certificates? If not,
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// open certificate dialog, so the user can create
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// a new one.
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if (CertificateManager::getCertificates().isEmpty())
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{
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onOpenCertificatesManager();
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if (CertificateManager::getCertificates().isEmpty())
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{
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return;
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}
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}
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SignDialog dialog(m_dataExchangeInterface->getMainWindow(), m_scene.isEmpty());
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if (dialog.exec() == SignDialog::Accepted)
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{
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}
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}
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void SignaturePlugin::onOpenCertificatesManager()
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{
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CertificateManagerDialog dialog(m_dataExchangeInterface->getMainWindow());
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@ -422,7 +446,7 @@ void SignaturePlugin::updateActions()
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QAction* signElectronicallyAction = m_actions[SignElectronically];
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signElectronicallyAction->setEnabled(isSceneNonempty);
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QAction* signDigitallyAction = m_actions[SignDigitally];
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signDigitallyAction->setEnabled(isSceneNonempty);
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signDigitallyAction->setEnabled(m_document);
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}
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void SignaturePlugin::updateGraphics()
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@ -54,6 +54,7 @@ private:
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void onToolActivityChanged();
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void onSceneEditElement(const std::set<pdf::PDFInteger>& elements);
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void onSignElectronically();
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void onSignDigitally();
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void onOpenCertificatesManager();
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void onPenChanged(const QPen& pen);
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90
Pdf4QtViewerPlugins/SignaturePlugin/signdialog.cpp
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90
Pdf4QtViewerPlugins/SignaturePlugin/signdialog.cpp
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@ -0,0 +1,90 @@
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// Copyright (C) 2022 Jakub Melka
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//
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// This file is part of PDF4QT.
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//
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// PDF4QT is free software: you can redistribute it and/or modify
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// it under the terms of the GNU Lesser General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// with the written consent of the copyright owner, any later version.
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//
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// PDF4QT is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU Lesser General Public License for more details.
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//
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// You should have received a copy of the GNU Lesser General Public License
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// along with PDF4QT. If not, see <https://www.gnu.org/licenses/>.
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#include "signdialog.h"
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#include "ui_signdialog.h"
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#include "certificatemanager.h"
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#include <openssl/pkcs7.h>
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#include <QMessageBox>
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namespace pdfplugin
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{
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SignDialog::SignDialog(QWidget* parent, bool isSceneEmpty) :
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QDialog(parent),
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ui(new Ui::SignDialog)
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{
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ui->setupUi(this);
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if (!isSceneEmpty)
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{
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ui->methodCombo->addItem(tr("Sign digitally"), SignDigitally);
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}
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ui->methodCombo->addItem(tr("Sign digitally (invisible signature)"), SignDigitallyInvisible);
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ui->methodCombo->setCurrentIndex(0);
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QFileInfoList certificates = CertificateManager::getCertificates();
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for (const QFileInfo& certificateFileInfo : certificates)
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{
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ui->certificateCombo->addItem(certificateFileInfo.fileName(), certificateFileInfo.absoluteFilePath());
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}
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}
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SignDialog::~SignDialog()
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{
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delete ui;
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}
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SignDialog::SignMethod SignDialog::getSignMethod() const
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{
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return static_cast<SignMethod>(ui->methodCombo->currentData().toInt());
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}
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QString SignDialog::getCertificatePath() const
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{
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return ui->certificateCombo->currentData().toString();
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}
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void SignDialog::accept()
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{
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// Check certificate
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if (!QFile::exists(getCertificatePath()))
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{
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QMessageBox::critical(this, tr("Error"), tr("Certificate does not exist."));
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ui->certificateCombo->setFocus();
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return;
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}
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// Check we can access the certificate
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if (!CertificateManager::isCertificateValid(getCertificatePath(), ui->certificatePasswordEdit->text()))
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{
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QMessageBox::critical(this, tr("Error"), tr("Password to open certificate is invalid."));
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ui->certificatePasswordEdit->setFocus();
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return;
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}
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QDialog::accept();
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}
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} // namespace pdfplugin
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56
Pdf4QtViewerPlugins/SignaturePlugin/signdialog.h
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56
Pdf4QtViewerPlugins/SignaturePlugin/signdialog.h
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@ -0,0 +1,56 @@
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// Copyright (C) 2022 Jakub Melka
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//
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// This file is part of PDF4QT.
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//
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// PDF4QT is free software: you can redistribute it and/or modify
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// it under the terms of the GNU Lesser General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// with the written consent of the copyright owner, any later version.
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//
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// PDF4QT is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU Lesser General Public License for more details.
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//
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// You should have received a copy of the GNU Lesser General Public License
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// along with PDF4QT. If not, see <https://www.gnu.org/licenses/>.
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#ifndef SIGNDIALOG_H
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#define SIGNDIALOG_H
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#include <QDialog>
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namespace Ui
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{
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class SignDialog;
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}
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namespace pdfplugin
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{
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class SignDialog : public QDialog
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{
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Q_OBJECT
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public:
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explicit SignDialog(QWidget* parent, bool isSceneEmpty);
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virtual ~SignDialog() override;
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virtual void accept() override;
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enum SignMethod
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{
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SignDigitally,
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SignDigitallyInvisible
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};
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SignMethod getSignMethod() const;
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QString getCertificatePath() const;
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private:
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Ui::SignDialog* ui;
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};
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} // namespace pdfplugin
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#endif // SIGNDIALOG_H
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160
Pdf4QtViewerPlugins/SignaturePlugin/signdialog.ui
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160
Pdf4QtViewerPlugins/SignaturePlugin/signdialog.ui
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@ -0,0 +1,160 @@
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<?xml version="1.0" encoding="UTF-8"?>
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<ui version="4.0">
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<class>SignDialog</class>
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<widget class="QDialog" name="SignDialog">
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<property name="geometry">
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<rect>
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<x>0</x>
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<y>0</y>
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<width>501</width>
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<height>332</height>
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</rect>
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</property>
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<property name="windowTitle">
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<string>Dialog</string>
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</property>
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<layout class="QVBoxLayout" name="verticalLayout">
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<item>
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<widget class="QGroupBox" name="selectCertificateGroupBox">
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<property name="title">
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<string>Sign Method</string>
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</property>
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<layout class="QGridLayout" name="gridLayout">
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<item row="0" column="0">
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<widget class="QLabel" name="methodLabel">
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<property name="text">
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<string>Method</string>
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</property>
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</widget>
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</item>
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<item row="0" column="1">
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<widget class="QComboBox" name="methodCombo"/>
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</item>
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<item row="1" column="0">
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<widget class="QLabel" name="certificateLabel">
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<property name="text">
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<string>Certificate</string>
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</property>
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</widget>
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</item>
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<item row="1" column="1">
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<widget class="QComboBox" name="certificateCombo"/>
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</item>
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<item row="2" column="0">
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<widget class="QLabel" name="passwordLabel">
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<property name="text">
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<string>Password</string>
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</property>
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</widget>
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</item>
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<item row="2" column="1">
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<widget class="QLineEdit" name="certificatePasswordEdit">
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<property name="echoMode">
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<enum>QLineEdit::Password</enum>
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</property>
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<property name="clearButtonEnabled">
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<bool>true</bool>
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</property>
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</widget>
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</item>
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</layout>
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</widget>
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</item>
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<item>
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<widget class="QGroupBox" name="parametersGroupBox">
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<property name="title">
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<string>Parameters</string>
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</property>
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<layout class="QGridLayout" name="gridLayout_2">
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<item row="0" column="0">
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<widget class="QLabel" name="reasonLabel">
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<property name="text">
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<string>Reason</string>
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</property>
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</widget>
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</item>
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<item row="0" column="1">
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<widget class="QLineEdit" name="reasonEdit">
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<property name="clearButtonEnabled">
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<bool>true</bool>
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</property>
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</widget>
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</item>
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<item row="1" column="0">
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<widget class="QLabel" name="contactInfoLabel">
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<property name="text">
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<string>Contact Info</string>
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</property>
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</widget>
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</item>
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<item row="1" column="1">
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<widget class="QLineEdit" name="contactInfoEdit">
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<property name="clearButtonEnabled">
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<bool>true</bool>
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</property>
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</widget>
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</item>
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</layout>
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</widget>
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</item>
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<item>
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<spacer name="verticalSpacer">
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<property name="orientation">
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<enum>Qt::Vertical</enum>
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</property>
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<property name="sizeHint" stdset="0">
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<size>
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<width>20</width>
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<height>40</height>
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</size>
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</property>
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</spacer>
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</item>
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<item>
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<widget class="QDialogButtonBox" name="buttonBox">
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<property name="orientation">
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<enum>Qt::Horizontal</enum>
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</property>
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<property name="standardButtons">
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<set>QDialogButtonBox::Cancel|QDialogButtonBox::Ok</set>
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</property>
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</widget>
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</item>
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</layout>
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</widget>
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<resources/>
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<connections>
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<connection>
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<sender>buttonBox</sender>
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<signal>accepted()</signal>
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<receiver>SignDialog</receiver>
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<slot>accept()</slot>
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<hints>
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<hint type="sourcelabel">
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<x>248</x>
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<y>254</y>
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</hint>
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<hint type="destinationlabel">
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<x>157</x>
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<y>274</y>
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</hint>
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</hints>
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</connection>
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<connection>
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<sender>buttonBox</sender>
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<signal>rejected()</signal>
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<receiver>SignDialog</receiver>
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<slot>reject()</slot>
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<hints>
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<hint type="sourcelabel">
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<x>316</x>
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<y>260</y>
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</hint>
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<hint type="destinationlabel">
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<x>286</x>
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<y>274</y>
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</hint>
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</hints>
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</connection>
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</connections>
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</ui>
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