qt-everywhere-src-5.15.1/qtwebengine/examples/webenginewidgets/simplebrowser/webpage.cpp - orbit - Git at Google

 /****************************************************************************
 **
 ** Copyright (C) 2016 The Qt Company Ltd.
 ** Contact: https://www.qt.io/licensing/
 **
 ** This file is part of the examples of the Qt Toolkit.
 **
 ** $QT_BEGIN_LICENSE:BSD$
 ** Commercial License Usage
 ** Licensees holding valid commercial Qt licenses may use this file in
 ** accordance with the commercial license agreement provided with the
 ** Software or, alternatively, in accordance with the terms contained in
 ** a written agreement between you and The Qt Company. For licensing terms
 ** and conditions see https://www.qt.io/terms-conditions. For further
 ** information use the contact form at https://www.qt.io/contact-us.
 **
 ** BSD License Usage
 ** Alternatively, you may use this file under the terms of the BSD license
 ** as follows:
 **
 ** "Redistribution and use in source and binary forms, with or without
 ** modification, are permitted provided that the following conditions are
 ** met:
 **   * Redistributions of source code must retain the above copyright
 **     notice, this list of conditions and the following disclaimer.
 **   * Redistributions in binary form must reproduce the above copyright
 **     notice, this list of conditions and the following disclaimer in
 **     the documentation and/or other materials provided with the
 **     distribution.
 **   * Neither the name of The Qt Company Ltd nor the names of its
 **     contributors may be used to endorse or promote products derived
 **     from this software without specific prior written permission.
 **
 **
 ** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 ** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
 ** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
 ** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
 ** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
 ** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
 ** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
 ** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
 ** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 ** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 ** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE."
 **
 ** $QT_END_LICENSE$
 **
 ****************************************************************************/

 #include "browserwindow.h"
 #include "tabwidget.h"
 #include "ui_certificateerrordialog.h"
 #include "ui_passworddialog.h"
 #include "webpage.h"
 #include "webview.h"
 #include <QAuthenticator>
 #include <QMessageBox>
 #include <QStyle>
 #include <QTimer>
 #include <QWebEngineCertificateError>

 WebPage::WebPage(QWebEngineProfile *profile, QObject *parent)
     : QWebEnginePage(profile, parent)
 {
     connect(this, &QWebEnginePage::authenticationRequired, this, &WebPage::handleAuthenticationRequired);
     connect(this, &QWebEnginePage::featurePermissionRequested, this, &WebPage::handleFeaturePermissionRequested);
     connect(this, &QWebEnginePage::proxyAuthenticationRequired, this, &WebPage::handleProxyAuthenticationRequired);
     connect(this, &QWebEnginePage::registerProtocolHandlerRequested, this, &WebPage::handleRegisterProtocolHandlerRequested);
 #if !defined(QT_NO_SSL) || QT_VERSION >= QT_VERSION_CHECK(5, 12, 0)
     connect(this, &QWebEnginePage::selectClientCertificate, this, &WebPage::handleSelectClientCertificate);
 #endif
 }

 bool WebPage::certificateError(const QWebEngineCertificateError &error)
 {
     QWidget *mainWindow = view()->window();

 #if QT_VERSION >= QT_VERSION_CHECK(5, 14, 0)
     QWebEngineCertificateError deferredError = error;
     deferredError.defer();

     QTimer::singleShot(0, mainWindow, [mainWindow, error = std::move(deferredError)] () mutable {
         if (!error.deferred()) {
             QMessageBox::critical(mainWindow, tr("Certificate Error"), error.errorDescription());
         } else {
 #else
     if (error.isOverridable()) {
 #endif
             QDialog dialog(mainWindow);
             dialog.setModal(true);
             dialog.setWindowFlags(dialog.windowFlags() & ~Qt::WindowContextHelpButtonHint);

             Ui::CertificateErrorDialog certificateDialog;
             certificateDialog.setupUi(&dialog);
             certificateDialog.m_iconLabel->setText(QString());
             QIcon icon(mainWindow->style()->standardIcon(QStyle::SP_MessageBoxWarning, 0, mainWindow));
             certificateDialog.m_iconLabel->setPixmap(icon.pixmap(32, 32));
             certificateDialog.m_errorLabel->setText(error.errorDescription());
             dialog.setWindowTitle(tr("Certificate Error"));

 #if QT_VERSION >= QT_VERSION_CHECK(5, 14, 0)
             if (dialog.exec() == QDialog::Accepted)
                 error.ignoreCertificateError();
             else
                 error.rejectCertificate();
         }
     });
     return true;
 #else
         return dialog.exec() == QDialog::Accepted;
     }

     QMessageBox::critical(mainWindow, tr("Certificate Error"), error.errorDescription());
     return false;
 #endif
 }

 void WebPage::handleAuthenticationRequired(const QUrl &requestUrl, QAuthenticator *auth)
 {
     QWidget *mainWindow = view()->window();
     QDialog dialog(mainWindow);
     dialog.setModal(true);
     dialog.setWindowFlags(dialog.windowFlags() & ~Qt::WindowContextHelpButtonHint);

     Ui::PasswordDialog passwordDialog;
     passwordDialog.setupUi(&dialog);

     passwordDialog.m_iconLabel->setText(QString());
     QIcon icon(mainWindow->style()->standardIcon(QStyle::SP_MessageBoxQuestion, 0, mainWindow));
     passwordDialog.m_iconLabel->setPixmap(icon.pixmap(32, 32));

     QString introMessage(tr("Enter username and password for \"%1\" at %2")
                          .arg(auth->realm()).arg(requestUrl.toString().toHtmlEscaped()));
     passwordDialog.m_infoLabel->setText(introMessage);
     passwordDialog.m_infoLabel->setWordWrap(true);

     if (dialog.exec() == QDialog::Accepted) {
         auth->setUser(passwordDialog.m_userNameLineEdit->text());
         auth->setPassword(passwordDialog.m_passwordLineEdit->text());
     } else {
         // Set authenticator null if dialog is cancelled
         *auth = QAuthenticator();
     }
 }

 inline QString questionForFeature(QWebEnginePage::Feature feature)
 {
     switch (feature) {
     case QWebEnginePage::Geolocation:
         return WebPage::tr("Allow %1 to access your location information?");
     case QWebEnginePage::MediaAudioCapture:
         return WebPage::tr("Allow %1 to access your microphone?");
     case QWebEnginePage::MediaVideoCapture:
         return WebPage::tr("Allow %1 to access your webcam?");
     case QWebEnginePage::MediaAudioVideoCapture:
         return WebPage::tr("Allow %1 to access your microphone and webcam?");
     case QWebEnginePage::MouseLock:
         return WebPage::tr("Allow %1 to lock your mouse cursor?");
     case QWebEnginePage::DesktopVideoCapture:
         return WebPage::tr("Allow %1 to capture video of your desktop?");
     case QWebEnginePage::DesktopAudioVideoCapture:
         return WebPage::tr("Allow %1 to capture audio and video of your desktop?");
     case QWebEnginePage::Notifications:
         return WebPage::tr("Allow %1 to show notification on your desktop?");
     }
     return QString();
 }

 void WebPage::handleFeaturePermissionRequested(const QUrl &securityOrigin, Feature feature)
 {
     QString title = tr("Permission Request");
     QString question = questionForFeature(feature).arg(securityOrigin.host());
     if (!question.isEmpty() && QMessageBox::question(view()->window(), title, question) == QMessageBox::Yes)
         setFeaturePermission(securityOrigin, feature, PermissionGrantedByUser);
     else
         setFeaturePermission(securityOrigin, feature, PermissionDeniedByUser);
 }

 void WebPage::handleProxyAuthenticationRequired(const QUrl &, QAuthenticator *auth, const QString &proxyHost)
 {
     QWidget *mainWindow = view()->window();
     QDialog dialog(mainWindow);
     dialog.setModal(true);
     dialog.setWindowFlags(dialog.windowFlags() & ~Qt::WindowContextHelpButtonHint);

     Ui::PasswordDialog passwordDialog;
     passwordDialog.setupUi(&dialog);

     passwordDialog.m_iconLabel->setText(QString());
     QIcon icon(mainWindow->style()->standardIcon(QStyle::SP_MessageBoxQuestion, 0, mainWindow));
     passwordDialog.m_iconLabel->setPixmap(icon.pixmap(32, 32));

     QString introMessage = tr("Connect to proxy \"%1\" using:");
     introMessage = introMessage.arg(proxyHost.toHtmlEscaped());
     passwordDialog.m_infoLabel->setText(introMessage);
     passwordDialog.m_infoLabel->setWordWrap(true);

     if (dialog.exec() == QDialog::Accepted) {
         auth->setUser(passwordDialog.m_userNameLineEdit->text());
         auth->setPassword(passwordDialog.m_passwordLineEdit->text());
     } else {
         // Set authenticator null if dialog is cancelled
         *auth = QAuthenticator();
     }
 }

 //! [registerProtocolHandlerRequested]
 void WebPage::handleRegisterProtocolHandlerRequested(QWebEngineRegisterProtocolHandlerRequest request)
 {
     auto answer = QMessageBox::question(
         view()->window(),
         tr("Permission Request"),
         tr("Allow %1 to open all %2 links?")
         .arg(request.origin().host())
         .arg(request.scheme()));
     if (answer == QMessageBox::Yes)
         request.accept();
     else
         request.reject();
 }
 //! [registerProtocolHandlerRequested]

 #if !defined(QT_NO_SSL) || QT_VERSION >= QT_VERSION_CHECK(5, 12, 0)
 void WebPage::handleSelectClientCertificate(QWebEngineClientCertificateSelection selection)
 {
     // Just select one.
     selection.select(selection.certificates().at(0));
 }
 #endif
	/****************************************************************************
	**
	** Copyright (C) 2016 The Qt Company Ltd.
	** Contact: https://www.qt.io/licensing/
	**
	** This file is part of the examples of the Qt Toolkit.
	**
	** $QT_BEGIN_LICENSE:BSD$
	** Commercial License Usage
	** Licensees holding valid commercial Qt licenses may use this file in
	** accordance with the commercial license agreement provided with the
	** Software or, alternatively, in accordance with the terms contained in
	** a written agreement between you and The Qt Company. For licensing terms
	** and conditions see https://www.qt.io/terms-conditions. For further
	** information use the contact form at https://www.qt.io/contact-us.
	**
	** BSD License Usage
	** Alternatively, you may use this file under the terms of the BSD license
	** as follows:
	**
	** "Redistribution and use in source and binary forms, with or without
	** modification, are permitted provided that the following conditions are
	** met:
	** * Redistributions of source code must retain the above copyright
	** notice, this list of conditions and the following disclaimer.
	** * Redistributions in binary form must reproduce the above copyright
	** notice, this list of conditions and the following disclaimer in
	** the documentation and/or other materials provided with the
	** distribution.
	** * Neither the name of The Qt Company Ltd nor the names of its
	** contributors may be used to endorse or promote products derived
	** from this software without specific prior written permission.
	**
	**
	** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
	** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
	** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
	** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
	** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
	** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
	** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
	** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
	** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
	** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
	** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE."
	**
	** $QT_END_LICENSE$
	**
	****************************************************************************/

	#include "browserwindow.h"
	#include "tabwidget.h"
	#include "ui_certificateerrordialog.h"
	#include "ui_passworddialog.h"
	#include "webpage.h"
	#include "webview.h"
	#include <QAuthenticator>
	#include <QMessageBox>
	#include <QStyle>
	#include <QTimer>
	#include <QWebEngineCertificateError>

	WebPage::WebPage(QWebEngineProfile profile, QObject parent)
	: QWebEnginePage(profile, parent)
	{
	connect(this, &QWebEnginePage::authenticationRequired, this, &WebPage::handleAuthenticationRequired);
	connect(this, &QWebEnginePage::featurePermissionRequested, this, &WebPage::handleFeaturePermissionRequested);
	connect(this, &QWebEnginePage::proxyAuthenticationRequired, this, &WebPage::handleProxyAuthenticationRequired);
	connect(this, &QWebEnginePage::registerProtocolHandlerRequested, this, &WebPage::handleRegisterProtocolHandlerRequested);
	#if !defined(QT_NO_SSL) \|\| QT_VERSION >= QT_VERSION_CHECK(5, 12, 0)
	connect(this, &QWebEnginePage::selectClientCertificate, this, &WebPage::handleSelectClientCertificate);
	#endif
	}

	bool WebPage::certificateError(const QWebEngineCertificateError &error)
	{
	QWidget *mainWindow = view()->window();

	#if QT_VERSION >= QT_VERSION_CHECK(5, 14, 0)
	QWebEngineCertificateError deferredError = error;
	deferredError.defer();

	QTimer::singleShot(0, mainWindow, [mainWindow, error = std::move(deferredError)] () mutable {
	if (!error.deferred()) {
	QMessageBox::critical(mainWindow, tr("Certificate Error"), error.errorDescription());
	} else {
	#else
	if (error.isOverridable()) {
	#endif
	QDialog dialog(mainWindow);
	dialog.setModal(true);
	dialog.setWindowFlags(dialog.windowFlags() & ~Qt::WindowContextHelpButtonHint);

	Ui::CertificateErrorDialog certificateDialog;
	certificateDialog.setupUi(&dialog);
	certificateDialog.m_iconLabel->setText(QString());
	QIcon icon(mainWindow->style()->standardIcon(QStyle::SP_MessageBoxWarning, 0, mainWindow));
	certificateDialog.m_iconLabel->setPixmap(icon.pixmap(32, 32));
	certificateDialog.m_errorLabel->setText(error.errorDescription());
	dialog.setWindowTitle(tr("Certificate Error"));

	#if QT_VERSION >= QT_VERSION_CHECK(5, 14, 0)
	if (dialog.exec() == QDialog::Accepted)
	error.ignoreCertificateError();
	else
	error.rejectCertificate();
	}
	});
	return true;
	#else
	return dialog.exec() == QDialog::Accepted;
	}

	QMessageBox::critical(mainWindow, tr("Certificate Error"), error.errorDescription());
	return false;
	#endif
	}

	void WebPage::handleAuthenticationRequired(const QUrl &requestUrl, QAuthenticator *auth)
	{
	QWidget *mainWindow = view()->window();
	QDialog dialog(mainWindow);
	dialog.setModal(true);
	dialog.setWindowFlags(dialog.windowFlags() & ~Qt::WindowContextHelpButtonHint);

	Ui::PasswordDialog passwordDialog;
	passwordDialog.setupUi(&dialog);

	passwordDialog.m_iconLabel->setText(QString());
	QIcon icon(mainWindow->style()->standardIcon(QStyle::SP_MessageBoxQuestion, 0, mainWindow));
	passwordDialog.m_iconLabel->setPixmap(icon.pixmap(32, 32));

	QString introMessage(tr("Enter username and password for \"%1\" at %2")
	.arg(auth->realm()).arg(requestUrl.toString().toHtmlEscaped()));
	passwordDialog.m_infoLabel->setText(introMessage);
	passwordDialog.m_infoLabel->setWordWrap(true);

	if (dialog.exec() == QDialog::Accepted) {
	auth->setUser(passwordDialog.m_userNameLineEdit->text());
	auth->setPassword(passwordDialog.m_passwordLineEdit->text());
	} else {
	// Set authenticator null if dialog is cancelled
	*auth = QAuthenticator();
	}
	}

	inline QString questionForFeature(QWebEnginePage::Feature feature)
	{
	switch (feature) {
	case QWebEnginePage::Geolocation:
	return WebPage::tr("Allow %1 to access your location information?");
	case QWebEnginePage::MediaAudioCapture:
	return WebPage::tr("Allow %1 to access your microphone?");
	case QWebEnginePage::MediaVideoCapture:
	return WebPage::tr("Allow %1 to access your webcam?");
	case QWebEnginePage::MediaAudioVideoCapture:
	return WebPage::tr("Allow %1 to access your microphone and webcam?");
	case QWebEnginePage::MouseLock:
	return WebPage::tr("Allow %1 to lock your mouse cursor?");
	case QWebEnginePage::DesktopVideoCapture:
	return WebPage::tr("Allow %1 to capture video of your desktop?");
	case QWebEnginePage::DesktopAudioVideoCapture:
	return WebPage::tr("Allow %1 to capture audio and video of your desktop?");
	case QWebEnginePage::Notifications:
	return WebPage::tr("Allow %1 to show notification on your desktop?");
	}
	return QString();
	}

	void WebPage::handleFeaturePermissionRequested(const QUrl &securityOrigin, Feature feature)
	{
	QString title = tr("Permission Request");
	QString question = questionForFeature(feature).arg(securityOrigin.host());
	if (!question.isEmpty() && QMessageBox::question(view()->window(), title, question) == QMessageBox::Yes)
	setFeaturePermission(securityOrigin, feature, PermissionGrantedByUser);
	else
	setFeaturePermission(securityOrigin, feature, PermissionDeniedByUser);
	}

	void WebPage::handleProxyAuthenticationRequired(const QUrl &, QAuthenticator *auth, const QString &proxyHost)
	{
	QWidget *mainWindow = view()->window();
	QDialog dialog(mainWindow);
	dialog.setModal(true);
	dialog.setWindowFlags(dialog.windowFlags() & ~Qt::WindowContextHelpButtonHint);

	Ui::PasswordDialog passwordDialog;
	passwordDialog.setupUi(&dialog);

	passwordDialog.m_iconLabel->setText(QString());
	QIcon icon(mainWindow->style()->standardIcon(QStyle::SP_MessageBoxQuestion, 0, mainWindow));
	passwordDialog.m_iconLabel->setPixmap(icon.pixmap(32, 32));

	QString introMessage = tr("Connect to proxy \"%1\" using:");
	introMessage = introMessage.arg(proxyHost.toHtmlEscaped());
	passwordDialog.m_infoLabel->setText(introMessage);
	passwordDialog.m_infoLabel->setWordWrap(true);

	if (dialog.exec() == QDialog::Accepted) {
	auth->setUser(passwordDialog.m_userNameLineEdit->text());
	auth->setPassword(passwordDialog.m_passwordLineEdit->text());
	} else {
	// Set authenticator null if dialog is cancelled
	*auth = QAuthenticator();
	}
	}

	//! [registerProtocolHandlerRequested]
	void WebPage::handleRegisterProtocolHandlerRequested(QWebEngineRegisterProtocolHandlerRequest request)
	{
	auto answer = QMessageBox::question(
	view()->window(),
	tr("Permission Request"),
	tr("Allow %1 to open all %2 links?")
	.arg(request.origin().host())
	.arg(request.scheme()));
	if (answer == QMessageBox::Yes)
	request.accept();
	else
	request.reject();
	}
	//! [registerProtocolHandlerRequested]

	#if !defined(QT_NO_SSL) \|\| QT_VERSION >= QT_VERSION_CHECK(5, 12, 0)
	void WebPage::handleSelectClientCertificate(QWebEngineClientCertificateSelection selection)
	{
	// Just select one.
	selection.select(selection.certificates().at(0));
	}
	#endif