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Merge remote-tracking branch 'remotes/origin/signdoc'

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This commit is contained in:
Jakub Melka
2022-05-29 17:32:39 +02:00
parent 91fe02efc5 b46ff4f63c
commit 63f5c8d742
102 changed files with 12961 additions and 2158 deletions
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2
Pdf4QtViewerPlugins/DimensionsPlugin/DimensionsPlugin.qbs
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@@ -10,6 +10,6 @@ Pdf4QtPlugin {
]
Properties {
condition: qbs.hostOS.contains("windows")
cpp.defines: "DIMENTIONPLUGIN_LIBRARY"
cpp.defines: "DIMENSIONPLUGIN_LIBRARY"
}
}

3
Pdf4QtViewerPlugins/Pdf4QtViewerPlugins.pro
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@@ -24,6 +24,7 @@ SUBDIRS += \
RedactPlugin \
OutputPreviewPlugin \
ObjectInspectorPlugin \
AudioBookPlugin
AudioBookPlugin \
SignaturePlugin

7
Pdf4QtViewerPlugins/SignaturePlugin/SignaturePlugin.json Normal file
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@@ -0,0 +1,7 @@
{
"Name" : "Signature",
"Author" : "Jakub Melka",
"Version" : "1.0.0",
"License" : "LGPL v3",
"Description" : "Electronically or digitally sign PDF document."
}

68
Pdf4QtViewerPlugins/SignaturePlugin/SignaturePlugin.pro Normal file
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@@ -0,0 +1,68 @@
# Copyright (C) 2022 Jakub Melka
#
# This file is part of PDF4QT.
#
# PDF4QT is free software: you can redistribute it and/or modify
# it under the terms of the GNU Lesser General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# with the written consent of the copyright owner, any later version.
#
# PDF4QT 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 Lesser General Public License for more details.
#
# You should have received a copy of the GNU Lesser General Public License
# along with PDF4QT. If not, see <https://www.gnu.org/licenses/>.
TEMPLATE = lib
DEFINES += SIGNATUREPLUGIN_LIBRARY
QT += gui widgets
LIBS += -L$$OUT_PWD/../..
LIBS += -lPdf4QtLib
QMAKE_CXXFLAGS += /std:c++latest /utf-8
INCLUDEPATH += $$PWD/../../Pdf4QtLib/Sources
DESTDIR = $$OUT_PWD/../../pdfplugins
CONFIG += c++11
Pdf4Qt_OPENSSL_PATH = $$absolute_path(../../Tools, $$[QT_INSTALL_PREFIX])
# Link OpenSSL
LIBS += -L$$Pdf4Qt_OPENSSL_PATH/OpenSSL/Win_x64/bin -L$$Pdf4Qt_OPENSSL_PATH/OpenSSL/Win_x64/lib -llibcrypto -llibssl
INCLUDEPATH += $$Pdf4Qt_OPENSSL_PATH/OpenSSL/Win_x64/include
DEPENDPATH += $$Pdf4Qt_OPENSSL_PATH/OpenSSL/Win_x64/include
SOURCES += \
certificatemanager.cpp \
certificatemanagerdialog.cpp \
createcertificatedialog.cpp \
signatureplugin.cpp \
signdialog.cpp
HEADERS += \
certificatemanager.h \
certificatemanagerdialog.h \
createcertificatedialog.h \
signatureplugin.h \
signdialog.h
CONFIG += force_debug_info
DISTFILES += \
SignaturePlugin.json
RESOURCES += \
icons.qrc
FORMS += \
certificatemanagerdialog.ui \
createcertificatedialog.ui \
signdialog.ui

15
Pdf4QtViewerPlugins/SignaturePlugin/SignaturePlugin.qbs Normal file
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@@ -0,0 +1,15 @@
import qbs
Pdf4QtPlugin {
name: "SignaturePlugin"
files: [
"*.h",
"*.cpp",
"*.ui",
"icons.qrc",
]
Properties {
condition: qbs.hostOS.contains("windows")
cpp.defines: "SIGNATUREPLUGIN_LIBRARY"
}
}

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Pdf4QtViewerPlugins/SignaturePlugin/accept-mark.svg Normal file
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Pdf4QtViewerPlugins/SignaturePlugin/activate.svg Normal file
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250
Pdf4QtViewerPlugins/SignaturePlugin/certificatemanager.cpp Normal file
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@@ -0,0 +1,250 @@
// Copyright (C) 2022 Jakub Melka
//
// This file is part of PDF4QT.
//
// PDF4QT is free software: you can redistribute it and/or modify
// it under the terms of the GNU Lesser General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// with the written consent of the copyright owner, any later version.
//
// PDF4QT 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 Lesser General Public License for more details.
//
// You should have received a copy of the GNU Lesser General Public License
// along with PDF4QT. If not, see <https://www.gnu.org/licenses/>.
#include "certificatemanager.h"
#include <QDir>
#include <QFile>
#include <QStandardPaths>
#include <openssl/bio.h>
#include <openssl/rsa.h>
#include <openssl/rsaerr.h>
#include <openssl/x509.h>
#include <openssl/evp.h>
#include <openssl/pem.h>
#include <openssl/x509v3.h>
#include <openssl/pkcs12.h>
#include <memory>
namespace pdfplugin
{
CertificateManager::CertificateManager()
{
}
template<typename T>
using openssl_ptr = std::unique_ptr<T, void(*)(T*)>;
void CertificateManager::createCertificate(const NewCertificateInfo& info)
{
openssl_ptr<BIO> pksBuffer(BIO_new(BIO_s_mem()), &BIO_free_all);
if (pksBuffer)
{
openssl_ptr<BIGNUM> bignumber(BN_new(), &BN_free);
openssl_ptr<RSA> rsaKey(RSA_new(), &RSA_free);
BN_set_word(bignumber.get(), RSA_F4);
const int rsaResult = RSA_generate_key_ex(rsaKey.get(), info.rsaKeyLength, bignumber.get(), nullptr);
if (rsaResult)
{
openssl_ptr<X509> certificate(X509_new(), &X509_free);
openssl_ptr<EVP_PKEY> privateKey(EVP_PKEY_new(), &EVP_PKEY_free);
EVP_PKEY_set1_RSA(privateKey.get(), rsaKey.get());
ASN1_INTEGER* serialNumber = X509_get_serialNumber(certificate.get());
ASN1_INTEGER_set(serialNumber, info.serialNumber);
// Set validity of the certificate
X509_gmtime_adj(X509_getm_notBefore(certificate.get()), 0);
X509_gmtime_adj(X509_getm_notAfter(certificate.get()), info.validityInSeconds);
// Set name
X509_NAME* name = X509_get_subject_name(certificate.get());
auto addString = [name](const char* identifier, QString string)
{
if (string.isEmpty())
{
return;
}
QByteArray stringUtf8 = string.toUtf8();
X509_NAME_add_entry_by_txt(name, identifier, MBSTRING_UTF8, reinterpret_cast<const unsigned char*>(stringUtf8.constData()), stringUtf8.length(), -1, 0);
};
addString("C", info.certCountryCode);
addString("O", info.certOrganization);
addString("OU", info.certOrganizationUnit);
addString("CN", info.certCommonName);
addString("E", info.certEmail);
X509_EXTENSION* extension = nullptr;
X509V3_CTX context = { };
X509V3_set_ctx_nodb(&context);
X509V3_set_ctx(&context, certificate.get(), certificate.get(), nullptr, nullptr, 0);
extension = X509V3_EXT_conf_nid (NULL, &context, NID_key_usage, "digitalSignature, keyAgreement");
X509_add_ext(certificate.get(), extension, -1);
X509_EXTENSION_free(extension);
X509_set_issuer_name(certificate.get(), name);
// Set public key
X509_set_pubkey(certificate.get(), privateKey.get());
X509_sign(certificate.get(), privateKey.get(), EVP_sha512());
// Private key password
QByteArray privateKeyPaswordUtf8 = info.privateKeyPasword.toUtf8();
// Write the data
openssl_ptr<PKCS12> pkcs12(PKCS12_create(privateKeyPaswordUtf8.constData(),
nullptr,
privateKey.get(),
certificate.get(),
nullptr,
0,
0,
PKCS12_DEFAULT_ITER,
PKCS12_DEFAULT_ITER,
0), &PKCS12_free);
i2d_PKCS12_bio(pksBuffer.get(), pkcs12.get());
BUF_MEM* pksMemoryBuffer = nullptr;
BIO_get_mem_ptr(pksBuffer.get(), &pksMemoryBuffer);
if (!info.fileName.isEmpty())
{
QFile file(info.fileName);
if (file.open(QFile::WriteOnly | QFile::Truncate))
{
file.write(pksMemoryBuffer->data, pksMemoryBuffer->length);
file.close();
}
}
}
}
}
QFileInfoList CertificateManager::getCertificates()
{
QDir directory(getCertificateDirectory());
return directory.entryInfoList(QStringList() << "*.pfx", QDir::Files | QDir::NoDotAndDotDot | QDir::Readable, QDir::Name);
}
QString CertificateManager::getCertificateDirectory()
{
QDir directory(QStandardPaths::standardLocations(QStandardPaths::AppDataLocation).front() + "/certificates/");
return directory.absolutePath();
}
QString CertificateManager::generateCertificateFileName()
{
QString directoryString = getCertificateDirectory();
QDir directory(directoryString);
int certificateIndex = 1;
while (true)
{
QString fileName = directory.absoluteFilePath(QString("cert_%1.pfx").arg(certificateIndex++));
if (!QFile::exists(fileName))
{
return fileName;
}
}
return QString();
}
bool CertificateManager::isCertificateValid(QString fileName, QString password)
{
QFile file(fileName);
if (file.open(QFile::ReadOnly))
{
QByteArray data = file.readAll();
file.close();
openssl_ptr<BIO> pksBuffer(BIO_new(BIO_s_mem()), &BIO_free_all);
BIO_write(pksBuffer.get(), data.constData(), data.length());
openssl_ptr<PKCS12> pkcs12(d2i_PKCS12_bio(pksBuffer.get(), nullptr), &PKCS12_free);
if (pkcs12)
{
const char* passwordPointer = nullptr;
QByteArray passwordByteArray = password.isEmpty() ? QByteArray() : password.toUtf8();
if (!passwordByteArray.isEmpty())
{
passwordPointer = passwordByteArray.constData();
}
return PKCS12_parse(pkcs12.get(), passwordPointer, nullptr, nullptr, nullptr) == 1;
}
}
return false;
}
bool SignatureFactory::sign(QString certificateName, QString password, QByteArray data, QByteArray& result)
{
QFile file(certificateName);
if (file.open(QFile::ReadOnly))
{
QByteArray certificateData = file.readAll();
file.close();
openssl_ptr<BIO> certificateBuffer(BIO_new(BIO_s_mem()), &BIO_free_all);
BIO_write(certificateBuffer.get(), certificateData.constData(), certificateData.length());
openssl_ptr<PKCS12> pkcs12(d2i_PKCS12_bio(certificateBuffer.get(), nullptr), &PKCS12_free);
if (pkcs12)
{
const char* passwordPointer = nullptr;
QByteArray passwordByteArray = password.isEmpty() ? QByteArray() : password.toUtf8();
if (!passwordByteArray.isEmpty())
{
passwordPointer = passwordByteArray.constData();
}
EVP_PKEY* key = nullptr;
X509* certificate = nullptr;
STACK_OF(X509)* certificates = nullptr;
if (PKCS12_parse(pkcs12.get(), passwordPointer, &key, &certificate, &certificates) == 1)
{
openssl_ptr<BIO> signedDataBuffer(BIO_new(BIO_s_mem()), &BIO_free_all);
BIO_write(signedDataBuffer.get(), data.constData(), data.length());
PKCS7* signature = PKCS7_sign(certificate, key, certificates, signedDataBuffer.get(), PKCS7_DETACHED | PKCS7_BINARY);
if (signature)
{
openssl_ptr<BIO> outputBuffer(BIO_new(BIO_s_mem()), &BIO_free_all);
i2d_PKCS7_bio(outputBuffer.get(), signature);
BUF_MEM* pksMemoryBuffer = nullptr;
BIO_get_mem_ptr(outputBuffer.get(), &pksMemoryBuffer);
result = QByteArray(pksMemoryBuffer->data, int(pksMemoryBuffer->length));
EVP_PKEY_free(key);
X509_free(certificate);
sk_X509_free(certificates);
return true;
}
EVP_PKEY_free(key);
X509_free(certificate);
sk_X509_free(certificates);
return false;
}
}
}
return false;
}
} // namespace pdfplugin

64
Pdf4QtViewerPlugins/SignaturePlugin/certificatemanager.h Normal file
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// Copyright (C) 2022 Jakub Melka
//
// This file is part of PDF4QT.
//
// PDF4QT is free software: you can redistribute it and/or modify
// it under the terms of the GNU Lesser General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// with the written consent of the copyright owner, any later version.
//
// PDF4QT 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 Lesser General Public License for more details.
//
// You should have received a copy of the GNU Lesser General Public License
// along with PDF4QT. If not, see <https://www.gnu.org/licenses/>.
#ifndef CERTIFICATEMANAGER_H
#define CERTIFICATEMANAGER_H
#include <QString>
#include <QFileInfoList>
namespace pdfplugin
{
class CertificateManager
{
public:
CertificateManager();
struct NewCertificateInfo
{
QString fileName;
QString privateKeyPasword;
QString certCountryCode;
QString certOrganization;
QString certOrganizationUnit;
QString certCommonName;
QString certEmail;
int rsaKeyLength = 1024;
int validityInSeconds = 2 * 365 * 24 * 3600;
long serialNumber = 1;
};
void createCertificate(const NewCertificateInfo& info);
static QFileInfoList getCertificates();
static QString getCertificateDirectory();
static QString generateCertificateFileName();
static bool isCertificateValid(QString fileName, QString password);
};
class SignatureFactory
{
public:
static bool sign(QString certificateName, QString password, QByteArray data, QByteArray& result);
};
} // namespace pdfplugin
#endif // CERTIFICATEMANAGER_H

133
Pdf4QtViewerPlugins/SignaturePlugin/certificatemanagerdialog.cpp Normal file
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// Copyright (C) 2022 Jakub Melka
//
// This file is part of PDF4QT.
//
// PDF4QT is free software: you can redistribute it and/or modify
// it under the terms of the GNU Lesser General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// with the written consent of the copyright owner, any later version.
//
// PDF4QT 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 Lesser General Public License for more details.
//
// You should have received a copy of the GNU Lesser General Public License
// along with PDF4QT. If not, see <https://www.gnu.org/licenses/>.
#include "certificatemanagerdialog.h"
#include "ui_certificatemanagerdialog.h"
#include "createcertificatedialog.h"
#include "pdfwidgetutils.h"
#include <QAction>
#include <QPushButton>
#include <QFileSystemModel>
#include <QDesktopServices>
#include <QMessageBox>
#include <QFileDialog>
namespace pdfplugin
{
CertificateManagerDialog::CertificateManagerDialog(QWidget *parent) :
QDialog(parent),
ui(new Ui::CertificateManagerDialog),
m_newCertificateButton(nullptr),
m_openCertificateDirectoryButton(nullptr),
m_deleteCertificateButton(nullptr),
m_importCertificateButton(nullptr),
m_certificateFileModel(nullptr)
{
ui->setupUi(this);
QDir::root().mkpath(CertificateManager::getCertificateDirectory());
m_certificateFileModel = new QFileSystemModel(this);
QModelIndex rootIndex = m_certificateFileModel->setRootPath(CertificateManager::getCertificateDirectory());
ui->fileView->setModel(m_certificateFileModel);
ui->fileView->setRootIndex(rootIndex);
m_newCertificateButton = ui->buttonBox->addButton(tr("Create"), QDialogButtonBox::ActionRole);
m_openCertificateDirectoryButton = ui->buttonBox->addButton(tr("Open Directory"), QDialogButtonBox::ActionRole);
m_deleteCertificateButton = ui->buttonBox->addButton(tr("Delete"), QDialogButtonBox::ActionRole);
m_importCertificateButton = ui->buttonBox->addButton(tr("Import"), QDialogButtonBox::ActionRole);
connect(m_newCertificateButton, &QPushButton::clicked, this, &CertificateManagerDialog::onNewCertificateClicked);
connect(m_openCertificateDirectoryButton, &QPushButton::clicked, this, &CertificateManagerDialog::onOpenCertificateDirectoryClicked);
connect(m_deleteCertificateButton, &QPushButton::clicked, this, &CertificateManagerDialog::onDeleteCertificateClicked);
connect(m_importCertificateButton, &QPushButton::clicked, this, &CertificateManagerDialog::onImportCertificateClicked);
setMinimumSize(pdf::PDFWidgetUtils::scaleDPI(this, QSize(640, 480)));
}
CertificateManagerDialog::~CertificateManagerDialog()
{
delete ui;
}
void CertificateManagerDialog::onNewCertificateClicked()
{
CreateCertificateDialog dialog(this);
if (dialog.exec() == CreateCertificateDialog::Accepted)
{
const CertificateManager::NewCertificateInfo info = dialog.getNewCertificateInfo();
m_certificateManager.createCertificate(info);
}
}
void CertificateManagerDialog::onOpenCertificateDirectoryClicked()
{
QDesktopServices::openUrl(QString("file:///%1").arg(CertificateManager::getCertificateDirectory(), QUrl::TolerantMode));
}
void CertificateManagerDialog::onDeleteCertificateClicked()
{
QFileInfo fileInfo = m_certificateFileModel->fileInfo(ui->fileView->currentIndex());
if (fileInfo.exists())
{
if (QMessageBox::question(this, tr("Confirm delete"), tr("Do you want to delete certificate '%1'?").arg(fileInfo.fileName()), QMessageBox::No, QMessageBox::Yes) == QMessageBox::Yes)
{
QFile file(fileInfo.filePath());
if (!file.remove())
{
QMessageBox::critical(this, tr("Error"), tr("Cannot delete certificate '%1'").arg(fileInfo.fileName()));
}
}
}
}
void CertificateManagerDialog::onImportCertificateClicked()
{
QString selectedFile = QFileDialog::getOpenFileName(this, tr("Import Certificate"), QStandardPaths::writableLocation(QStandardPaths::DocumentsLocation), tr("Certificate file (*.pfx);;All files (*.*)"));
if (selectedFile.isEmpty())
{
return;
}
QFile file(selectedFile);
if (file.exists())
{
QString path = CertificateManager::getCertificateDirectory();
QString targetFile = QString("%1/%2").arg(path, QFileInfo(file).fileName());
if (QFile::exists(targetFile))
{
QMessageBox::critical(this, tr("Error"), tr("Target file exists. Please rename the certificate file to import."));
}
else
{
if (file.copy(targetFile))
{
QMessageBox::information(this, tr("Import Certificate"), tr("Certificate '%1' was successfully imported.").arg(file.fileName()));
}
else
{
QMessageBox::critical(this, tr("Import Certificate"), tr("Error occured during certificate '%1' import.").arg(file.fileName()));
}
}
}
}
} // namespace pdfplugin

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Pdf4QtViewerPlugins/SignaturePlugin/certificatemanagerdialog.h Normal file
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// Copyright (C) 2022 Jakub Melka
//
// This file is part of PDF4QT.
//
// PDF4QT is free software: you can redistribute it and/or modify
// it under the terms of the GNU Lesser General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// with the written consent of the copyright owner, any later version.
//
// PDF4QT 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 Lesser General Public License for more details.
//
// You should have received a copy of the GNU Lesser General Public License
// along with PDF4QT. If not, see <https://www.gnu.org/licenses/>.
#ifndef CERTIFICATEMANAGERDIALOG_H
#define CERTIFICATEMANAGERDIALOG_H
#include "certificatemanager.h"
#include <QDialog>
class QAction;
class QFileSystemModel;
namespace Ui
{
class CertificateManagerDialog;
}
namespace pdfplugin
{
class CertificateManagerDialog : public QDialog
{
Q_OBJECT
public:
explicit CertificateManagerDialog(QWidget* parent);
virtual ~CertificateManagerDialog() override;
private:
void onNewCertificateClicked();
void onOpenCertificateDirectoryClicked();
void onDeleteCertificateClicked();
void onImportCertificateClicked();
Ui::CertificateManagerDialog* ui;
CertificateManager m_certificateManager;
QPushButton* m_newCertificateButton;
QPushButton* m_openCertificateDirectoryButton;
QPushButton* m_deleteCertificateButton;
QPushButton* m_importCertificateButton;
QFileSystemModel* m_certificateFileModel;
};
} // namespace pdfplugin
#endif // CERTIFICATEMANAGERDIALOG_H

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Pdf4QtViewerPlugins/SignaturePlugin/certificatemanagerdialog.ui Normal file
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<?xml version="1.0" encoding="UTF-8"?>
<ui version="4.0">
<class>CertificateManagerDialog</class>
<widget class="QDialog" name="CertificateManagerDialog">
<property name="geometry">
<rect>
<x>0</x>
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<height>511</height>
</rect>
</property>
<property name="windowTitle">
<string>Certificate Manager</string>
</property>
<layout class="QVBoxLayout" name="verticalLayout">
<item>
<widget class="QGroupBox" name="certificateGroupBox">
<property name="title">
<string>Certificates</string>
</property>
<layout class="QVBoxLayout" name="verticalLayout_2">
<item>
<widget class="QTreeView" name="fileView"/>
</item>
</layout>
</widget>
</item>
<item>
<widget class="QDialogButtonBox" name="buttonBox">
<property name="orientation">
<enum>Qt::Horizontal</enum>
</property>
<property name="standardButtons">
<set>QDialogButtonBox::Close</set>
</property>
</widget>
</item>
</layout>
</widget>
<resources/>
<connections>
<connection>
<sender>buttonBox</sender>
<signal>accepted()</signal>
<receiver>CertificateManagerDialog</receiver>
<slot>accept()</slot>
<hints>
<hint type="sourcelabel">
<x>248</x>
<y>254</y>
</hint>
<hint type="destinationlabel">
<x>157</x>
<y>274</y>
</hint>
</hints>
</connection>
<connection>
<sender>buttonBox</sender>
<signal>rejected()</signal>
<receiver>CertificateManagerDialog</receiver>
<slot>reject()</slot>
<hints>
<hint type="sourcelabel">
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</hint>
<hint type="destinationlabel">
<x>286</x>
<y>274</y>
</hint>
</hints>
</connection>
</connections>
</ui>

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162
Pdf4QtViewerPlugins/SignaturePlugin/createcertificatedialog.cpp Normal file
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// Copyright (C) 2022 Jakub Melka
//
// This file is part of PDF4QT.
//
// PDF4QT is free software: you can redistribute it and/or modify
// it under the terms of the GNU Lesser General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// with the written consent of the copyright owner, any later version.
//
// PDF4QT 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 Lesser General Public License for more details.
//
// You should have received a copy of the GNU Lesser General Public License
// along with PDF4QT. If not, see <https://www.gnu.org/licenses/>.
#include "createcertificatedialog.h"
#include "ui_createcertificatedialog.h"
#include "certificatemanager.h"
#include <QMessageBox>
#include <QInputDialog>
#include <QDate>
#include <QCalendar>
namespace pdfplugin
{
CreateCertificateDialog::CreateCertificateDialog(QWidget *parent) :
QDialog(parent),
ui(new Ui::CreateCertificateDialog)
{
ui->setupUi(this);
ui->fileNameEdit->setReadOnly(true);
ui->fileNameEdit->setText(CertificateManager::generateCertificateFileName());
ui->keyLengthCombo->addItem(tr("1024 bits"), 1024);
ui->keyLengthCombo->addItem(tr("2048 bits"), 2048);
ui->keyLengthCombo->addItem(tr("4096 bits"), 4096);
ui->keyLengthCombo->setCurrentIndex(ui->keyLengthCombo->findData(2048));
QList<QLocale> locales = QLocale::matchingLocales(QLocale::AnyLanguage, QLocale::AnyScript, QLocale::AnyCountry);
std::sort(locales.begin(), locales.end(), [](const QLocale& left, const QLocale& right) { return QString::compare(left.nativeCountryName(), right.nativeCountryName(), Qt::CaseInsensitive) < 0; });
int currentIndex = 0;
QLocale currentLocale = QLocale::system();
for (const QLocale& locale : locales)
{
if (locale.country() == QLocale::AnyCountry)
{
continue;
}
if (locale.nativeCountryName().isEmpty())
{
continue;
}
QString localeName = locale.name();
QString countryCode = localeName.split(QChar('_')).back();
QString text = QString("%1 | %2").arg(countryCode, locale.nativeCountryName());
if (ui->countryCombo->findText(text) >= 0)
{
continue;
}
if (locale.bcp47Name() == currentLocale.bcp47Name())
{
currentIndex = ui->countryCombo->count();
}
ui->countryCombo->addItem(text, countryCode);
}
ui->countryCombo->setCurrentIndex(currentIndex);
ui->countryCombo->setMaxVisibleItems(25);
QDate minDate = QDate::currentDate();
ui->validTillEdit->setMinimumDate(minDate);
QDate selectedDate = minDate;
selectedDate = selectedDate.addYears(5, ui->validTillEdit->calendar());
ui->validTillEdit->setSelectedDate(selectedDate);
}
CreateCertificateDialog::~CreateCertificateDialog()
{
delete ui;
}
void CreateCertificateDialog::accept()
{
if (validate())
{
bool ok = false;
QString password1 = QInputDialog::getText(this, tr("Certificate Protection"), tr("Enter password to protect your certificate."), QLineEdit::Password, QString(), &ok);
if (!ok)
{
return;
}
QString password2 = QInputDialog::getText(this, tr("Certificate Protection"), tr("Enter password again to verify password text."), QLineEdit::Password, QString(), &ok);
if (password1 != password2)
{
QMessageBox::critical(this, tr("Error"), tr("Reentered password is not equal to the first one!"));
return;
}
QDate date = ui->validTillEdit->selectedDate();
QDate currentDate = QDate::currentDate();
int days = currentDate.daysTo(date);
// Fill certificate info
m_newCertificateInfo.fileName = ui->fileNameEdit->text();
m_newCertificateInfo.privateKeyPasword = password1;
m_newCertificateInfo.certCountryCode = ui->countryCombo->currentData().toString();
m_newCertificateInfo.certOrganization = ui->organizationEdit->text();
m_newCertificateInfo.certOrganizationUnit = ui->organizationUnitEdit->text();
m_newCertificateInfo.certCommonName = ui->commonNameEdit->text();
m_newCertificateInfo.certEmail = ui->emailEdit->text();
m_newCertificateInfo.rsaKeyLength = ui->keyLengthCombo->currentData().toInt();
m_newCertificateInfo.validityInSeconds = days * 24 * 3600;
BaseClass::accept();
}
}
bool CreateCertificateDialog::validate()
{
// validate empty text fields
if (ui->commonNameEdit->text().isEmpty())
{
QMessageBox::critical(this, tr("Error"), tr("Please enter a name!"));
ui->commonNameEdit->setFocus();
return false;
}
if (ui->organizationEdit->text().isEmpty())
{
QMessageBox::critical(this, tr("Error"), tr("Please enter an organization name!"));
ui->organizationEdit->setFocus();
return false;
}
if (ui->emailEdit->text().isEmpty())
{
QMessageBox::critical(this, tr("Error"), tr("Please enter an email address!"));
ui->emailEdit->setFocus();
return false;
}
return true;
}
} // namespace plugin

59
Pdf4QtViewerPlugins/SignaturePlugin/createcertificatedialog.h Normal file
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// Copyright (C) 2022 Jakub Melka
//
// This file is part of PDF4QT.
//
// PDF4QT is free software: you can redistribute it and/or modify
// it under the terms of the GNU Lesser General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// with the written consent of the copyright owner, any later version.
//
// PDF4QT 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 Lesser General Public License for more details.
//
// You should have received a copy of the GNU Lesser General Public License
// along with PDF4QT. If not, see <https://www.gnu.org/licenses/>.
#ifndef CREATECERTIFICATEDIALOG_H
#define CREATECERTIFICATEDIALOG_H
#include "certificatemanager.h"
#include <QDialog>
namespace Ui
{
class CreateCertificateDialog;
}
namespace pdfplugin
{
class CreateCertificateDialog : public QDialog
{
Q_OBJECT
private:
using BaseClass = QDialog;
public:
explicit CreateCertificateDialog(QWidget* parent);
virtual ~CreateCertificateDialog() override;
const CertificateManager::NewCertificateInfo& getNewCertificateInfo() const { return m_newCertificateInfo; }
public slots:
virtual void accept() override;
private:
bool validate();
CertificateManager::NewCertificateInfo m_newCertificateInfo;
Ui::CreateCertificateDialog* ui;
};
} // namespace plugin
#endif // CREATECERTIFICATEDIALOG_H

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Pdf4QtViewerPlugins/SignaturePlugin/createcertificatedialog.ui Normal file
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<?xml version="1.0" encoding="UTF-8"?>
<ui version="4.0">
<class>CreateCertificateDialog</class>
<widget class="QDialog" name="CreateCertificateDialog">
<property name="geometry">
<rect>
<x>0</x>
<y>0</y>
<width>514</width>
<height>488</height>
</rect>
</property>
<property name="windowTitle">
<string>Create Certificate</string>
</property>
<layout class="QVBoxLayout" name="verticalLayout">
<item>
<widget class="QGroupBox" name="certificateGroupBox">
<property name="title">
<string>Create Self Signed Certificate</string>
</property>
<layout class="QFormLayout" name="formLayout">
<item row="1" column="0">
<widget class="QLabel" name="nameLabel">
<property name="text">
<string>Name</string>
</property>
</widget>
</item>
<item row="1" column="1">
<widget class="QLineEdit" name="commonNameEdit">
<property name="clearButtonEnabled">
<bool>true</bool>
</property>
</widget>
</item>
<item row="2" column="0">
<widget class="QLabel" name="organizationLabel">
<property name="text">
<string>Organization</string>
</property>
</widget>
</item>
<item row="3" column="0">
<widget class="QLabel" name="organizationUnitLabel">
<property name="text">
<string>Organization Unit</string>
</property>
</widget>
</item>
<item row="5" column="0">
<widget class="QLabel" name="emailLabel">
<property name="text">
<string>Email</string>
</property>
</widget>
</item>
<item row="8" column="0">
<spacer name="verticalSpacer">
<property name="orientation">
<enum>Qt::Vertical</enum>
</property>
<property name="sizeHint" stdset="0">
<size>
<width>20</width>
<height>40</height>
</size>
</property>
</spacer>
</item>
<item row="2" column="1">
<widget class="QLineEdit" name="organizationEdit">
<property name="clearButtonEnabled">
<bool>true</bool>
</property>
</widget>
</item>
<item row="3" column="1">
<widget class="QLineEdit" name="organizationUnitEdit">
<property name="clearButtonEnabled">
<bool>true</bool>
</property>
</widget>
</item>
<item row="5" column="1">
<widget class="QLineEdit" name="emailEdit">
<property name="clearButtonEnabled">
<bool>true</bool>
</property>
</widget>
</item>
<item row="4" column="0">
<widget class="QLabel" name="countryLabel">
<property name="text">
<string>Country</string>
</property>
</widget>
</item>
<item row="6" column="0">
<widget class="QLabel" name="keyLengthLabel">
<property name="text">
<string>Key length</string>
</property>
</widget>
</item>
<item row="7" column="0">
<widget class="QLabel" name="validityLabel">
<property name="text">
<string>Valid till</string>
</property>
</widget>
</item>
<item row="7" column="1">
<widget class="QCalendarWidget" name="validTillEdit"/>
</item>
<item row="6" column="1">
<widget class="QComboBox" name="keyLengthCombo"/>
</item>
<item row="4" column="1">
<widget class="QComboBox" name="countryCombo"/>
</item>
<item row="0" column="1">
<widget class="QLineEdit" name="fileNameEdit"/>
</item>
<item row="0" column="0">
<widget class="QLabel" name="certificateFileLabel">
<property name="text">
<string>Certificate file</string>
</property>
</widget>
</item>
</layout>
</widget>
</item>
<item>
<widget class="QDialogButtonBox" name="buttonBox">
<property name="orientation">
<enum>Qt::Horizontal</enum>
</property>
<property name="standardButtons">
<set>QDialogButtonBox::Cancel|QDialogButtonBox::Ok</set>
</property>
</widget>
</item>
</layout>
</widget>
<resources/>
<connections>
<connection>
<sender>buttonBox</sender>
<signal>accepted()</signal>
<receiver>CreateCertificateDialog</receiver>
<slot>accept()</slot>
<hints>
<hint type="sourcelabel">
<x>248</x>
<y>254</y>
</hint>
<hint type="destinationlabel">
<x>157</x>
<y>274</y>
</hint>
</hints>
</connection>
<connection>
<sender>buttonBox</sender>
<signal>rejected()</signal>
<receiver>CreateCertificateDialog</receiver>
<slot>reject()</slot>
<hints>
<hint type="sourcelabel">
<x>316</x>
<y>260</y>
</hint>
<hint type="destinationlabel">
<x>286</x>
<y>274</y>
</hint>
</hints>
</connection>
</connections>
</ui>

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<RCC>
<qresource prefix="/pdfplugins/signatureplugin">
<file>accept-mark.svg</file>
<file>reject-mark.svg</file>
<file>activate.svg</file>
<file>certificates.svg</file>
<file>clear.svg</file>
<file>create-dot.svg</file>
<file>create-freehand-curve.svg</file>
<file>create-horizontal-line.svg</file>
<file>create-line.svg</file>
<file>create-no-mark.svg</file>
<file>create-rectangle.svg</file>
<file>create-rounded-rectangle.svg</file>
<file>create-svg-image.svg</file>
<file>create-text.svg</file>
<file>create-vertical-line.svg</file>
<file>create-yes-mark.svg</file>
<file>sign-digitally.svg</file>
<file>sign-electronically.svg</file>
</qresource>
</RCC>

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// Copyright (C) 2022 Jakub Melka
//
// This file is part of PDF4QT.
//
// PDF4QT is free software: you can redistribute it and/or modify
// it under the terms of the GNU Lesser General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// with the written consent of the copyright owner, any later version.
//
// PDF4QT 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 Lesser General Public License for more details.
//
// You should have received a copy of the GNU Lesser General Public License
// along with PDF4QT. If not, see <https://www.gnu.org/licenses/>.
#include "signatureplugin.h"
#include "pdfdrawwidget.h"
#include "pdfutils.h"
#include "pdfpagecontenteditorwidget.h"
#include "pdfpagecontenteditorstylesettings.h"
#include "pdfdocumentbuilder.h"
#include "certificatemanagerdialog.h"
#include "signdialog.h"
#include "pdfdocumentwriter.h"
#include <QAction>
#include <QToolButton>
#include <QMainWindow>
#include <QMessageBox>
#include <QFileDialog>
namespace pdfplugin
{
SignaturePlugin::SignaturePlugin() :
pdf::PDFPlugin(nullptr),
m_actions({ }),
m_tools({ }),
m_editorWidget(nullptr),
m_scene(nullptr),
m_sceneSelectionChangeEnabled(true)
{
}
void SignaturePlugin::setWidget(pdf::PDFWidget* widget)
{
Q_ASSERT(!m_widget);
BaseClass::setWidget(widget);
QAction* activateAction = new QAction(QIcon(":/pdfplugins/signatureplugin/activate.svg"), tr("Activate signature creator"), this);
QAction* createTextAction = new QAction(QIcon(":/pdfplugins/signatureplugin/create-text.svg"), tr("Create Text Label"), this);
QAction* createFreehandCurveAction = new QAction(QIcon(":/pdfplugins/signatureplugin/create-freehand-curve.svg"), tr("Create Freehand Curve"), this);
QAction* createAcceptMarkAction = new QAction(QIcon(":/pdfplugins/signatureplugin/create-yes-mark.svg"), tr("Create Accept Mark"), this);
QAction* createRejectMarkAction = new QAction(QIcon(":/pdfplugins/signatureplugin/create-no-mark.svg"), tr("Create Reject Mark"), this);
QAction* createRectangleAction = new QAction(QIcon(":/pdfplugins/signatureplugin/create-rectangle.svg"), tr("Create Rectangle"), this);
QAction* createRoundedRectangleAction = new QAction(QIcon(":/pdfplugins/signatureplugin/create-rounded-rectangle.svg"), tr("Create Rounded Rectangle"), this);
QAction* createHorizontalLineAction = new QAction(QIcon(":/pdfplugins/signatureplugin/create-horizontal-line.svg"), tr("Create Horizontal Line"), this);
QAction* createVerticalLineAction = new QAction(QIcon(":/pdfplugins/signatureplugin/create-vertical-line.svg"), tr("Create Vertical Line"), this);
QAction* createLineAction = new QAction(QIcon(":/pdfplugins/signatureplugin/create-line.svg"), tr("Create Line"), this);
QAction* createDotAction = new QAction(QIcon(":/pdfplugins/signatureplugin/create-dot.svg"), tr("Create Dot"), this);
QAction* createSvgImageAction = new QAction(QIcon(":/pdfplugins/signatureplugin/create-svg-image.svg"), tr("Create SVG Image"), this);
QAction* clearAction = new QAction(QIcon(":/pdfplugins/signatureplugin/clear.svg"), tr("Clear All Graphics"), this);
QAction* signElectronicallyAction = new QAction(QIcon(":/pdfplugins/signatureplugin/sign-electronically.svg"), tr("Sign Electronically"), this);
QAction* signDigitallyAction = new QAction(QIcon(":/pdfplugins/signatureplugin/sign-digitally.svg"), tr("Sign Digitally With Certificate"), this);
QAction* certificatesAction = new QAction(QIcon(":/pdfplugins/signatureplugin/certificates.svg"), tr("Certificates Manager"), this);
activateAction->setObjectName("signaturetool_activateAction");
createTextAction->setObjectName("signaturetool_createTextAction");
createFreehandCurveAction->setObjectName("signaturetool_createFreehandCurveAction");
createAcceptMarkAction->setObjectName("signaturetool_createAcceptMarkAction");
createRejectMarkAction->setObjectName("signaturetool_createRejectMarkAction");
createRectangleAction->setObjectName("signaturetool_createRectangleAction");
createRoundedRectangleAction->setObjectName("signaturetool_createRoundedRectangleAction");
createHorizontalLineAction->setObjectName("signaturetool_createHorizontalLineAction");
createVerticalLineAction->setObjectName("signaturetool_createVerticalLineAction");
createLineAction->setObjectName("signaturetool_createLineAction");
createDotAction->setObjectName("signaturetool_createDotAction");
createSvgImageAction->setObjectName("signaturetool_createSvgImageAction");
clearAction->setObjectName("signaturetool_clearAction");
signElectronicallyAction->setObjectName("signaturetool_signElectronicallyAction");
signDigitallyAction->setObjectName("signaturetool_signDigitallyAction");
certificatesAction->setObjectName("signaturetool_certificatesAction");
activateAction->setCheckable(true);
createTextAction->setCheckable(true);
createFreehandCurveAction->setCheckable(true);
createAcceptMarkAction->setCheckable(true);
createRejectMarkAction->setCheckable(true);
createRectangleAction->setCheckable(true);
createRoundedRectangleAction->setCheckable(true);
createHorizontalLineAction->setCheckable(true);
createVerticalLineAction->setCheckable(true);
createLineAction->setCheckable(true);
createDotAction->setCheckable(true);
createSvgImageAction->setCheckable(true);
m_actions[Activate] = activateAction;
m_actions[Text] = createTextAction;
m_actions[FreehandCurve] = createFreehandCurveAction;
m_actions[AcceptMark] = createAcceptMarkAction;
m_actions[RejectMark] = createRejectMarkAction;
m_actions[Rectangle] = createRectangleAction;
m_actions[RoundedRectangle] = createRoundedRectangleAction;
m_actions[HorizontalLine] = createHorizontalLineAction;
m_actions[VerticalLine] = createVerticalLineAction;
m_actions[Line] = createLineAction;
m_actions[Dot] = createDotAction;
m_actions[SvgImage] = createSvgImageAction;
m_actions[Clear] = clearAction;
m_actions[SignElectronically] = signElectronicallyAction;
m_actions[SignDigitally] = signDigitallyAction;
m_actions[Certificates] = certificatesAction;
QFile acceptMarkFile(":/pdfplugins/signatureplugin/accept-mark.svg");
QByteArray acceptMarkContent;
if (acceptMarkFile.open(QFile::ReadOnly))
{
acceptMarkContent = acceptMarkFile.readAll();
acceptMarkFile.close();
}
QFile rejectMarkFile(":/pdfplugins/signatureplugin/reject-mark.svg");
QByteArray rejectMarkContent;
if (rejectMarkFile.open(QFile::ReadOnly))
{
rejectMarkContent = rejectMarkFile.readAll();
rejectMarkFile.close();
}
m_tools[TextTool] = new pdf::PDFCreatePCElementTextTool(widget->getDrawWidgetProxy(), &m_scene, createTextAction, this);
m_tools[FreehandCurveTool] = new pdf::PDFCreatePCElementFreehandCurveTool(widget->getDrawWidgetProxy(), &m_scene, createFreehandCurveAction, this);
m_tools[AcceptMarkTool] = new pdf::PDFCreatePCElementImageTool(widget->getDrawWidgetProxy(), &m_scene, createAcceptMarkAction, acceptMarkContent, false, this);
m_tools[RejectMarkTool] = new pdf::PDFCreatePCElementImageTool(widget->getDrawWidgetProxy(), &m_scene, createRejectMarkAction, rejectMarkContent, false, this);
m_tools[RectangleTool] = new pdf::PDFCreatePCElementRectangleTool(widget->getDrawWidgetProxy(), &m_scene, createRectangleAction, false, this);
m_tools[RoundedRectangleTool] = new pdf::PDFCreatePCElementRectangleTool(widget->getDrawWidgetProxy(), &m_scene, createRoundedRectangleAction, true, this);
m_tools[HorizontalLineTool] = new pdf::PDFCreatePCElementLineTool(widget->getDrawWidgetProxy(), &m_scene, createHorizontalLineAction, true, false, this);
m_tools[VerticalLineTool] = new pdf::PDFCreatePCElementLineTool(widget->getDrawWidgetProxy(), &m_scene, createVerticalLineAction, false, true, this);
m_tools[LineTool] = new pdf::PDFCreatePCElementLineTool(widget->getDrawWidgetProxy(), &m_scene, createLineAction, false, false, this);
m_tools[DotTool] = new pdf::PDFCreatePCElementDotTool(widget->getDrawWidgetProxy(), &m_scene, createDotAction, this);
m_tools[ImageTool] = new pdf::PDFCreatePCElementImageTool(widget->getDrawWidgetProxy(), &m_scene, createSvgImageAction, QByteArray(), true, this);
pdf::PDFToolManager* toolManager = widget->getToolManager();
for (pdf::PDFWidgetTool* tool : m_tools)
{
toolManager->addTool(tool);
connect(tool, &pdf::PDFWidgetTool::toolActivityChanged, this, &SignaturePlugin::onToolActivityChanged);
}
m_widget->addInputInterface(&m_scene);
m_widget->getDrawWidgetProxy()->registerDrawInterface(&m_scene);
m_scene.setWidget(m_widget);
connect(&m_scene, &pdf::PDFPageContentScene::sceneChanged, this, &SignaturePlugin::onSceneChanged);
connect(&m_scene, &pdf::PDFPageContentScene::selectionChanged, this, &SignaturePlugin::onSceneSelectionChanged);
connect(&m_scene, &pdf::PDFPageContentScene::editElementRequest, this, &SignaturePlugin::onSceneEditElement);
connect(clearAction, &QAction::triggered, &m_scene, &pdf::PDFPageContentScene::clear);
connect(activateAction, &QAction::triggered, this, &SignaturePlugin::setActive);
connect(signElectronicallyAction, &QAction::triggered, this, &SignaturePlugin::onSignElectronically);
connect(signDigitallyAction, &QAction::triggered, this, &SignaturePlugin::onSignDigitally);
connect(certificatesAction, &QAction::triggered, this, &SignaturePlugin::onOpenCertificatesManager);
updateActions();
}
void SignaturePlugin::setDocument(const pdf::PDFModifiedDocument& document)
{
BaseClass::setDocument(document);
if (document.hasReset())
{
setActive(false);
updateActions();
}
}
std::vector<QAction*> SignaturePlugin::getActions() const
{
std::vector<QAction*> result;
result.push_back(m_actions[Activate]);
result.push_back(m_actions[SignElectronically]);
result.push_back(m_actions[SignDigitally]);
result.push_back(m_actions[Certificates]);
return result;
}
void SignaturePlugin::onSceneChanged(bool graphicsOnly)
{
if (!graphicsOnly)
{
updateActions();
}
if (m_editorWidget)
{
m_editorWidget->updateItemsInListWidget();
}
updateGraphics();
}
void SignaturePlugin::onSceneSelectionChanged()
{
if (m_editorWidget && m_sceneSelectionChangeEnabled)
{
m_editorWidget->setSelection(m_scene.getSelectedElementIds());
}
}
void SignaturePlugin::onWidgetSelectionChanged()
{
Q_ASSERT(m_editorWidget);
pdf::PDFTemporaryValueChange guard(&m_sceneSelectionChangeEnabled, false);
m_scene.setSelectedElementIds(m_editorWidget->getSelection());
}
pdf::PDFWidgetTool* SignaturePlugin::getActiveTool()
{
for (pdf::PDFWidgetTool* currentTool : m_tools)
{
if (currentTool->isActive())
{
return currentTool;
}
}
return nullptr;
}
void SignaturePlugin::onToolActivityChanged()
{
if (m_editorWidget)
{
pdf::PDFWidgetTool* activeTool = getActiveTool();
const pdf::PDFPageContentElement* element = nullptr;
pdf::PDFCreatePCElementTool* tool = qobject_cast<pdf::PDFCreatePCElementTool*>(activeTool);
if (tool)
{
element = tool->getElement();
}
m_editorWidget->loadStyleFromElement(element);
}
}
void SignaturePlugin::onSceneEditElement(const std::set<pdf::PDFInteger>& elements)
{
if (elements.empty())
{
return;
}
pdf::PDFPageContentElement* element = nullptr;
for (pdf::PDFInteger id : elements)
{
element = m_scene.getElementById(id);
if (element)
{
break;
}
}
if (!element)
{
return;
}
if (pdf::PDFPageContentEditorStyleSettings::showEditElementStyleDialog(m_dataExchangeInterface->getMainWindow(), element))
{
updateGraphics();
}
}
void SignaturePlugin::onSignElectronically()
{
Q_ASSERT(m_document);
Q_ASSERT(!m_scene.isEmpty());
if (QMessageBox::question(m_dataExchangeInterface->getMainWindow(), tr("Confirm Signature"), tr("Document will be signed electronically. Do you want to continue?"), QMessageBox::Yes, QMessageBox::No) == QMessageBox::Yes)
{
pdf::PDFDocumentModifier modifier(m_document);
std::set<pdf::PDFInteger> pageIndices = m_scene.getPageIndices();
for (pdf::PDFInteger pageIndex : pageIndices)
{
const pdf::PDFPage* page = m_document->getCatalog()->getPage(pageIndex);
pdf::PDFPageContentStreamBuilder pageContentStreamBuilder(modifier.getBuilder(),
pdf::PDFContentStreamBuilder::CoordinateSystem::PDF,
pdf::PDFPageContentStreamBuilder::Mode::PlaceAfter);
QPainter* painter = pageContentStreamBuilder.begin(page->getPageReference());
QList<pdf::PDFRenderError> errors;
pdf::PDFTextLayoutGetter nullGetter(nullptr, pageIndex);
m_scene.drawElements(painter, pageIndex, nullGetter, QMatrix(), nullptr, errors);
pageContentStreamBuilder.end(painter);
modifier.markPageContentsChanged();
}
m_scene.clear();
if (modifier.finalize())
{
emit m_widget->getToolManager()->documentModified(pdf::PDFModifiedDocument(modifier.getDocument(), nullptr, modifier.getFlags()));
}
}
}
void SignaturePlugin::onSignDigitally()
{
// Jakub Melka: do we have certificates? If not,
// open certificate dialog, so the user can create
// a new one.
if (CertificateManager::getCertificates().isEmpty())
{
onOpenCertificatesManager();
if (CertificateManager::getCertificates().isEmpty())
{
return;
}
}
SignDialog dialog(m_dataExchangeInterface->getMainWindow(), m_scene.isEmpty());
if (dialog.exec() == SignDialog::Accepted)
{
QByteArray data = "SampleDataToBeSigned" + QByteArray::number(QDateTime::currentMSecsSinceEpoch());
QByteArray signature;
if (!SignatureFactory::sign(dialog.getCertificatePath(), dialog.getPassword(), data, signature))
{
QMessageBox::critical(m_widget, tr("Error"), tr("Failed to create digital signature."));
return;
}
QString signatureName = QString("pdf4qt_signature_%1").arg(QString::number(QDateTime::currentMSecsSinceEpoch()));
pdf::PDFInteger offsetMark = 123456789123;
constexpr const char* offsetMarkString = "123456789123";
const auto offsetMarkStringLength = std::strlen(offsetMarkString);
pdf::PDFDocumentBuilder builder(m_document);
pdf::PDFObjectReference signatureDictionary = builder.createSignatureDictionary("Adobe.PPKLite", "adbe.pkcs7.detached", signature, QDateTime::currentDateTime(), offsetMark);
pdf::PDFObjectReference formField = builder.createFormFieldSignature(signatureName, { }, signatureDictionary);
builder.createAcroForm({ formField });
const pdf::PDFCatalog* catalog = m_document->getCatalog();
if (dialog.getSignMethod() == SignDialog::SignDigitallyInvisible)
{
if (catalog->getPageCount() > 0)
{
const pdf::PDFObjectReference pageReference = catalog->getPage(0)->getPageReference();
builder.createInvisibleFormFieldWidget(formField, pageReference);
}
}
else if (dialog.getSignMethod() == SignDialog::SignDigitally)
{
Q_ASSERT(!m_scene.isEmpty());
const pdf::PDFInteger pageIndex = *m_scene.getPageIndices().begin();
const pdf::PDFPage* page = catalog->getPage(pageIndex);
pdf::PDFContentStreamBuilder contentBuilder(page->getMediaBox().size(), pdf::PDFContentStreamBuilder::CoordinateSystem::PDF);
QPainter* painter = contentBuilder.begin();
QList<pdf::PDFRenderError> errors;
pdf::PDFTextLayoutGetter nullGetter(nullptr, pageIndex);
m_scene.drawPage(painter, pageIndex, nullptr, nullGetter, QMatrix(), errors);
pdf::PDFContentStreamBuilder::ContentStream contentStream = contentBuilder.end(painter);
QRectF boundingRect = m_scene.getBoundingBox(pageIndex);
std::vector<pdf::PDFObject> copiedObjects = builder.copyFrom({ contentStream.resources, contentStream.contents }, contentStream.document.getStorage(), true);
Q_ASSERT(copiedObjects.size() == 2);
pdf::PDFObjectReference resourcesReference = copiedObjects[0].getReference();
pdf::PDFObjectReference formReference = copiedObjects[1].getReference();
// Create form object
pdf::PDFObjectFactory formFactory;
formFactory.beginDictionary();
formFactory.beginDictionaryItem("Type");
formFactory << pdf::WrapName("XObject");
formFactory.endDictionaryItem();
formFactory.beginDictionaryItem("Subtype");
formFactory << pdf::WrapName("Form");
formFactory.endDictionaryItem();
formFactory.beginDictionaryItem("BBox");
formFactory << boundingRect;
formFactory.endDictionaryItem();
formFactory.beginDictionaryItem("Resources");
formFactory << resourcesReference;
formFactory.endDictionaryItem();
formFactory.endDictionary();
builder.mergeTo(formReference, formFactory.takeObject());
builder.createFormFieldWidget(formField, page->getPageReference(), formReference, boundingRect);
}
QString reasonText = dialog.getReasonText();
if (!reasonText.isEmpty())
{
builder.setSignatureReason(signatureDictionary, reasonText);
}
QString contactInfoText = dialog.getContactInfoText();
if (!contactInfoText.isEmpty())
{
builder.setSignatureContactInfo(signatureDictionary, contactInfoText);
}
pdf::PDFDocument signedDocument = builder.build();
// 1) Save the document with incorrect signature
QBuffer buffer;
pdf::PDFDocumentWriter writer(m_widget->getDrawWidgetProxy()->getProgress());
buffer.open(QBuffer::ReadWrite);
writer.write(&buffer, &signedDocument);
const int indexOfSignature = buffer.data().indexOf(signature.toHex());
if (indexOfSignature == -1)
{
QMessageBox::critical(m_widget, tr("Error"), tr("Failed to create digital signature."));
buffer.close();
return;
}
// 2) Write ranges to be checked
const pdf::PDFInteger i1 = 0;
const pdf::PDFInteger i2 = indexOfSignature - 1;
const pdf::PDFInteger i3 = i2 + signature.size() * 2 + 2;
const pdf::PDFInteger i4 = buffer.data().size() - i3;
auto writeInt = [&](pdf::PDFInteger offset)
{
QString offsetString = QString::number(offset);
offsetString = offsetString.leftJustified(static_cast<int>(offsetMarkStringLength), ' ', true);
const auto index = buffer.data().lastIndexOf(QString(offsetMarkString), indexOfSignature);
buffer.seek(index);
buffer.write(offsetString.toLocal8Bit());
};
writeInt(i4);
writeInt(i3);
writeInt(i2);
writeInt(i1);
// 3) Sign the data
QByteArray dataToBeSigned;
buffer.seek(i1);
dataToBeSigned.append(buffer.read(i2));
buffer.seek(i3);
dataToBeSigned.append(buffer.read(i4));
if (!SignatureFactory::sign(dialog.getCertificatePath(), dialog.getPassword(), dataToBeSigned, signature))
{
QMessageBox::critical(m_widget, tr("Error"), tr("Failed to create digital signature."));
buffer.close();
return;
}
buffer.seek(i2 + 1);
buffer.write(signature.toHex());
buffer.close();
QString fileName = QFileDialog::getSaveFileName(m_dataExchangeInterface->getMainWindow(), tr("Save Signed Document"), getSignedFileName(), tr("Portable Document (*.pdf);;All files (*.*)"));
if (!fileName.isEmpty())
{
QFile signedFile(fileName);
if (signedFile.open(QFile::WriteOnly | QFile::Truncate))
{
signedFile.write(buffer.data());
signedFile.close();
}
}
}
}
QString SignaturePlugin::getSignedFileName() const
{
QFileInfo fileInfo(m_dataExchangeInterface->getOriginalFileName());
return fileInfo.path() + "/" + fileInfo.baseName() + "_SIGNED.pdf";
}
void SignaturePlugin::onOpenCertificatesManager()
{
CertificateManagerDialog dialog(m_dataExchangeInterface->getMainWindow());
dialog.exec();
}
void SignaturePlugin::onPenChanged(const QPen& pen)
{
if (pdf::PDFCreatePCElementTool* activeTool = qobject_cast<pdf::PDFCreatePCElementTool*>(getActiveTool()))
{
activeTool->setPen(pen);
}
}
void SignaturePlugin::onBrushChanged(const QBrush& brush)
{
if (pdf::PDFCreatePCElementTool* activeTool = qobject_cast<pdf::PDFCreatePCElementTool*>(getActiveTool()))
{
activeTool->setBrush(brush);
}
}
void SignaturePlugin::onFontChanged(const QFont& font)
{
if (pdf::PDFCreatePCElementTool* activeTool = qobject_cast<pdf::PDFCreatePCElementTool*>(getActiveTool()))
{
activeTool->setFont(font);
}
}
void SignaturePlugin::onAlignmentChanged(Qt::Alignment alignment)
{
if (pdf::PDFCreatePCElementTool* activeTool = qobject_cast<pdf::PDFCreatePCElementTool*>(getActiveTool()))
{
activeTool->setAlignment(alignment);
}
}
void SignaturePlugin::onTextAngleChanged(pdf::PDFReal angle)
{
if (pdf::PDFCreatePCElementTool* activeTool = qobject_cast<pdf::PDFCreatePCElementTool*>(getActiveTool()))
{
activeTool->setTextAngle(angle);
}
}
void SignaturePlugin::setActive(bool active)
{
if (m_scene.isActive() != active)
{
// Abort active tool, if we are deactivating the plugin
if (!active)
{
if (pdf::PDFWidgetTool* tool = m_widget->getToolManager()->getActiveTool())
{
auto it = std::find(m_tools.cbegin(), m_tools.cend(), tool);
if (it != m_tools.cend())
{
m_widget->getToolManager()->setActiveTool(nullptr);
}
}
}
m_scene.setActive(active);
if (!active)
{
m_scene.clear();
}
else
{
updateDockWidget();
}
m_actions[Activate]->setChecked(active);
updateActions();
}
}
void SignaturePlugin::updateActions()
{
m_actions[Activate]->setEnabled(m_document);
if (!m_scene.isActive() || !m_document)
{
// Inactive scene - disable all except activate action and certificates
for (QAction* action : m_actions)
{
if (action == m_actions[Activate] ||
action == m_actions[Certificates])
{
continue;
}
action->setEnabled(false);
}
return;
}
const bool isSceneNonempty = !m_scene.isEmpty();
// Tool actions
for (auto actionId : { Text, FreehandCurve, AcceptMark, RejectMark,
Rectangle, RoundedRectangle, HorizontalLine,
VerticalLine, Line, Dot, SvgImage })
{
m_actions[actionId]->setEnabled(true);
}
// Clear action
QAction* clearAction = m_actions[Clear];
clearAction->setEnabled(isSceneNonempty);
// Sign actions
QAction* signElectronicallyAction = m_actions[SignElectronically];
signElectronicallyAction->setEnabled(isSceneNonempty);
QAction* signDigitallyAction = m_actions[SignDigitally];
signDigitallyAction->setEnabled(m_document);
}
void SignaturePlugin::updateGraphics()
{
if (m_widget)
{
m_widget->getDrawWidget()->getWidget()->update();
}
}
void SignaturePlugin::updateDockWidget()
{
if (m_editorWidget)
{
return;
}
m_editorWidget = new pdf::PDFPageContentEditorWidget(m_dataExchangeInterface->getMainWindow());
m_editorWidget->setAllowedAreas(Qt::LeftDockWidgetArea | Qt::RightDockWidgetArea);
m_dataExchangeInterface->getMainWindow()->addDockWidget(Qt::RightDockWidgetArea, m_editorWidget, Qt::Vertical);
m_editorWidget->setFloating(false);
m_editorWidget->setWindowTitle(tr("Signature Toolbox"));
m_editorWidget->setScene(&m_scene);
connect(m_editorWidget, &pdf::PDFPageContentEditorWidget::operationTriggered, &m_scene, &pdf::PDFPageContentScene::performOperation);
connect(m_editorWidget, &pdf::PDFPageContentEditorWidget::itemSelectionChangedByUser, this, &SignaturePlugin::onWidgetSelectionChanged);
m_editorWidget->getToolButtonForOperation(static_cast<int>(pdf::PDFPageContentElementManipulator::Operation::AlignTop))->setIcon(QIcon(":/resources/pce-align-top.svg"));
m_editorWidget->getToolButtonForOperation(static_cast<int>(pdf::PDFPageContentElementManipulator::Operation::AlignCenterVertically))->setIcon(QIcon(":/resources/pce-align-v-center.svg"));
m_editorWidget->getToolButtonForOperation(static_cast<int>(pdf::PDFPageContentElementManipulator::Operation::AlignBottom))->setIcon(QIcon(":/resources/pce-align-bottom.svg"));
m_editorWidget->getToolButtonForOperation(static_cast<int>(pdf::PDFPageContentElementManipulator::Operation::AlignLeft))->setIcon(QIcon(":/resources/pce-align-left.svg"));
m_editorWidget->getToolButtonForOperation(static_cast<int>(pdf::PDFPageContentElementManipulator::Operation::AlignCenterHorizontally))->setIcon(QIcon(":/resources/pce-align-h-center.svg"));
m_editorWidget->getToolButtonForOperation(static_cast<int>(pdf::PDFPageContentElementManipulator::Operation::AlignRight))->setIcon(QIcon(":/resources/pce-align-right.svg"));
m_editorWidget->getToolButtonForOperation(static_cast<int>(pdf::PDFPageContentElementManipulator::Operation::SetSameHeight))->setIcon(QIcon(":/resources/pce-same-height.svg"));
m_editorWidget->getToolButtonForOperation(static_cast<int>(pdf::PDFPageContentElementManipulator::Operation::SetSameWidth))->setIcon(QIcon(":/resources/pce-same-width.svg"));
m_editorWidget->getToolButtonForOperation(static_cast<int>(pdf::PDFPageContentElementManipulator::Operation::SetSameSize))->setIcon(QIcon(":/resources/pce-same-size.svg"));
m_editorWidget->getToolButtonForOperation(static_cast<int>(pdf::PDFPageContentElementManipulator::Operation::CenterHorizontally))->setIcon(QIcon(":/resources/pce-center-h.svg"));
m_editorWidget->getToolButtonForOperation(static_cast<int>(pdf::PDFPageContentElementManipulator::Operation::CenterVertically))->setIcon(QIcon(":/resources/pce-center-v.svg"));
m_editorWidget->getToolButtonForOperation(static_cast<int>(pdf::PDFPageContentElementManipulator::Operation::CenterHorAndVert))->setIcon(QIcon(":/resources/pce-center-vh.svg"));
m_editorWidget->getToolButtonForOperation(static_cast<int>(pdf::PDFPageContentElementManipulator::Operation::LayoutVertically))->setIcon(QIcon(":/resources/pce-layout-v.svg"));
m_editorWidget->getToolButtonForOperation(static_cast<int>(pdf::PDFPageContentElementManipulator::Operation::LayoutHorizontally))->setIcon(QIcon(":/resources/pce-layout-h.svg"));
m_editorWidget->getToolButtonForOperation(static_cast<int>(pdf::PDFPageContentElementManipulator::Operation::LayoutForm))->setIcon(QIcon(":/resources/pce-layout-form.svg"));
m_editorWidget->getToolButtonForOperation(static_cast<int>(pdf::PDFPageContentElementManipulator::Operation::LayoutGrid))->setIcon(QIcon(":/resources/pce-layout-grid.svg"));
for (QAction* action : m_actions)
{
m_editorWidget->addAction(action);
}
connect(m_editorWidget, &pdf::PDFPageContentEditorWidget::penChanged, this, &SignaturePlugin::onPenChanged);
connect(m_editorWidget, &pdf::PDFPageContentEditorWidget::brushChanged, this, &SignaturePlugin::onBrushChanged);
connect(m_editorWidget, &pdf::PDFPageContentEditorWidget::fontChanged, this, &SignaturePlugin::onFontChanged);
connect(m_editorWidget, &pdf::PDFPageContentEditorWidget::alignmentChanged, this, &SignaturePlugin::onAlignmentChanged);
connect(m_editorWidget, &pdf::PDFPageContentEditorWidget::textAngleChanged, this, &SignaturePlugin::onTextAngleChanged);
}
}

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// Copyright (C) 2022 Jakub Melka
//
// This file is part of PDF4QT.
//
// PDF4QT is free software: you can redistribute it and/or modify
// it under the terms of the GNU Lesser General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// with the written consent of the copyright owner, any later version.
//
// PDF4QT 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 Lesser General Public License for more details.
//
// You should have received a copy of the GNU Lesser General Public License
// along with PDF4QT. If not, see <https://www.gnu.org/licenses/>.
#ifndef SIGNATURESPLUGIN_H
#define SIGNATURESPLUGIN_H
#include "pdfplugin.h"
#include "pdfpagecontentelements.h"
#include "pdfpagecontenteditortools.h"
#include <QObject>
namespace pdf
{
class PDFPageContentEditorWidget;
}
namespace pdfplugin
{
class SignaturePlugin : public pdf::PDFPlugin
{
Q_OBJECT
Q_PLUGIN_METADATA(IID "PDF4QT.SignaturePlugin" FILE "SignaturePlugin.json")
private:
using BaseClass = pdf::PDFPlugin;
public:
SignaturePlugin();
virtual void setWidget(pdf::PDFWidget* widget) override;
virtual void setDocument(const pdf::PDFModifiedDocument& document) override;
virtual std::vector<QAction*> getActions() const override;
private:
void onSceneChanged(bool graphicsOnly);
void onSceneSelectionChanged();
void onWidgetSelectionChanged();
void onToolActivityChanged();
void onSceneEditElement(const std::set<pdf::PDFInteger>& elements);
void onSignElectronically();
void onSignDigitally();
void onOpenCertificatesManager();
void onPenChanged(const QPen& pen);
void onBrushChanged(const QBrush& brush);
void onFontChanged(const QFont& font);
void onAlignmentChanged(Qt::Alignment alignment);
void onTextAngleChanged(pdf::PDFReal angle);
enum Action
{
// Activate action
Activate,
// Create graphics actions
Text,
FreehandCurve,
AcceptMark,
RejectMark,
Rectangle,
RoundedRectangle,
HorizontalLine,
VerticalLine,
Line,
Dot,
SvgImage,
Clear,
// Sign actions
SignElectronically,
SignDigitally,
Certificates,
LastAction
};
enum Tools
{
TextTool,
FreehandCurveTool,
AcceptMarkTool,
RejectMarkTool,
RectangleTool,
RoundedRectangleTool,
HorizontalLineTool,
VerticalLineTool,
LineTool,
DotTool,
ImageTool,
LastTool
};
void setActive(bool active);
void updateActions();
void updateGraphics();
void updateDockWidget();
QString getSignedFileName() const;
std::array<QAction*, LastAction> m_actions;
std::array<pdf::PDFWidgetTool*, LastTool> m_tools;
pdf::PDFPageContentEditorWidget* m_editorWidget;
pdf::PDFPageContentScene m_scene;
bool m_sceneSelectionChangeEnabled;
pdf::PDFWidgetTool* getActiveTool();
};
} // namespace pdfplugin
#endif // SIGNATURESPLUGIN_H

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// Copyright (C) 2022 Jakub Melka
//
// This file is part of PDF4QT.
//
// PDF4QT is free software: you can redistribute it and/or modify
// it under the terms of the GNU Lesser General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// with the written consent of the copyright owner, any later version.
//
// PDF4QT 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 Lesser General Public License for more details.
//
// You should have received a copy of the GNU Lesser General Public License
// along with PDF4QT. If not, see <https://www.gnu.org/licenses/>.
#include "signdialog.h"
#include "ui_signdialog.h"
#include "certificatemanager.h"
#include <openssl/pkcs7.h>
#include <QMessageBox>
namespace pdfplugin
{
SignDialog::SignDialog(QWidget* parent, bool isSceneEmpty) :
QDialog(parent),
ui(new Ui::SignDialog)
{
ui->setupUi(this);
if (!isSceneEmpty)
{
ui->methodCombo->addItem(tr("Sign digitally"), SignDigitally);
}
ui->methodCombo->addItem(tr("Sign digitally (invisible signature)"), SignDigitallyInvisible);
ui->methodCombo->setCurrentIndex(0);
QFileInfoList certificates = CertificateManager::getCertificates();
for (const QFileInfo& certificateFileInfo : certificates)
{
ui->certificateCombo->addItem(certificateFileInfo.fileName(), certificateFileInfo.absoluteFilePath());
}
}
SignDialog::~SignDialog()
{
delete ui;
}
SignDialog::SignMethod SignDialog::getSignMethod() const
{
return static_cast<SignMethod>(ui->methodCombo->currentData().toInt());
}
QString SignDialog::getCertificatePath() const
{
return ui->certificateCombo->currentData().toString();
}
QString SignDialog::getPassword() const
{
return ui->certificatePasswordEdit->text();
}
QString SignDialog::getReasonText() const
{
return ui->reasonEdit->text();
}
QString SignDialog::getContactInfoText() const
{
return ui->contactInfoEdit->text();
}
void SignDialog::accept()
{
// Check certificate
if (!QFile::exists(getCertificatePath()))
{
QMessageBox::critical(this, tr("Error"), tr("Certificate does not exist."));
ui->certificateCombo->setFocus();
return;
}
// Check we can access the certificate
if (!CertificateManager::isCertificateValid(getCertificatePath(), ui->certificatePasswordEdit->text()))
{
QMessageBox::critical(this, tr("Error"), tr("Password to open certificate is invalid."));
ui->certificatePasswordEdit->setFocus();
return;
}
QDialog::accept();
}
} // namespace pdfplugin

59
Pdf4QtViewerPlugins/SignaturePlugin/signdialog.h Normal file
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// Copyright (C) 2022 Jakub Melka
//
// This file is part of PDF4QT.
//
// PDF4QT is free software: you can redistribute it and/or modify
// it under the terms of the GNU Lesser General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// with the written consent of the copyright owner, any later version.
//
// PDF4QT 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 Lesser General Public License for more details.
//
// You should have received a copy of the GNU Lesser General Public License
// along with PDF4QT. If not, see <https://www.gnu.org/licenses/>.
#ifndef SIGNDIALOG_H
#define SIGNDIALOG_H
#include <QDialog>
namespace Ui
{
class SignDialog;
}
namespace pdfplugin
{
class SignDialog : public QDialog
{
Q_OBJECT
public:
explicit SignDialog(QWidget* parent, bool isSceneEmpty);
virtual ~SignDialog() override;
virtual void accept() override;
enum SignMethod
{
SignDigitally,
SignDigitallyInvisible
};
SignMethod getSignMethod() const;
QString getCertificatePath() const;
QString getPassword() const;
QString getReasonText() const;
QString getContactInfoText() const;
private:
Ui::SignDialog* ui;
};
} // namespace pdfplugin
#endif // SIGNDIALOG_H

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Pdf4QtViewerPlugins/SignaturePlugin/signdialog.ui Normal file
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<?xml version="1.0" encoding="UTF-8"?>
<ui version="4.0">
<class>SignDialog</class>
<widget class="QDialog" name="SignDialog">
<property name="geometry">
<rect>
<x>0</x>
<y>0</y>
<width>501</width>
<height>332</height>
</rect>
</property>
<property name="windowTitle">
<string>Dialog</string>
</property>
<layout class="QVBoxLayout" name="verticalLayout">
<item>
<widget class="QGroupBox" name="selectCertificateGroupBox">
<property name="title">
<string>Sign Method</string>
</property>
<layout class="QGridLayout" name="gridLayout">
<item row="0" column="0">
<widget class="QLabel" name="methodLabel">
<property name="text">
<string>Method</string>
</property>
</widget>
</item>
<item row="0" column="1">
<widget class="QComboBox" name="methodCombo"/>
</item>
<item row="1" column="0">
<widget class="QLabel" name="certificateLabel">
<property name="text">
<string>Certificate</string>
</property>
</widget>
</item>
<item row="1" column="1">
<widget class="QComboBox" name="certificateCombo"/>
</item>
<item row="2" column="0">
<widget class="QLabel" name="passwordLabel">
<property name="text">
<string>Password</string>
</property>
</widget>
</item>
<item row="2" column="1">
<widget class="QLineEdit" name="certificatePasswordEdit">
<property name="echoMode">
<enum>QLineEdit::Password</enum>
</property>
<property name="clearButtonEnabled">
<bool>true</bool>
</property>
</widget>
</item>
</layout>
</widget>
</item>
<item>
<widget class="QGroupBox" name="parametersGroupBox">
<property name="title">
<string>Parameters</string>
</property>
<layout class="QGridLayout" name="gridLayout_2">
<item row="0" column="0">
<widget class="QLabel" name="reasonLabel">
<property name="text">
<string>Reason</string>
</property>
</widget>
</item>
<item row="0" column="1">
<widget class="QLineEdit" name="reasonEdit">
<property name="clearButtonEnabled">
<bool>true</bool>
</property>
</widget>
</item>
<item row="1" column="0">
<widget class="QLabel" name="contactInfoLabel">
<property name="text">
<string>Contact Info</string>
</property>
</widget>
</item>
<item row="1" column="1">
<widget class="QLineEdit" name="contactInfoEdit">
<property name="clearButtonEnabled">
<bool>true</bool>
</property>
</widget>
</item>
</layout>
</widget>
</item>
<item>
<spacer name="verticalSpacer">
<property name="orientation">
<enum>Qt::Vertical</enum>
</property>
<property name="sizeHint" stdset="0">
<size>
<width>20</width>
<height>40</height>
</size>
</property>
</spacer>
</item>
<item>
<widget class="QDialogButtonBox" name="buttonBox">
<property name="orientation">
<enum>Qt::Horizontal</enum>
</property>
<property name="standardButtons">
<set>QDialogButtonBox::Cancel|QDialogButtonBox::Ok</set>
</property>
</widget>
</item>
</layout>
</widget>
<resources/>
<connections>
<connection>
<sender>buttonBox</sender>
<signal>accepted()</signal>
<receiver>SignDialog</receiver>
<slot>accept()</slot>
<hints>
<hint type="sourcelabel">
<x>248</x>
<y>254</y>
</hint>
<hint type="destinationlabel">
<x>157</x>
<y>274</y>
</hint>
</hints>
</connection>
<connection>
<sender>buttonBox</sender>
<signal>rejected()</signal>
<receiver>SignDialog</receiver>
<slot>reject()</slot>
<hints>
<hint type="sourcelabel">
<x>316</x>
<y>260</y>
</hint>
<hint type="destinationlabel">
<x>286</x>
<y>274</y>
</hint>
</hints>
</connection>
</connections>
</ui>