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/****************************************************************************
**
** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
** Contact: Nokia Corporation (qt-info@nokia.com)
**
** This file is part of the examples of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** No Commercial Usage
** This file contains pre-release code and may not be distributed.
** You may use this file in accordance with the terms and conditions
** contained in the either Technology Preview License Agreement or the
** Beta Release License Agreement.
**
** GNU Lesser General Public License Usage
** Alternatively, this file may be used under the terms of the GNU Lesser
** General Public License version 2.1 as published by the Free Software
** Foundation and appearing in the file LICENSE.LGPL included in the
** packaging of this file. Please review the following information to
** ensure the GNU Lesser General Public License version 2.1 requirements
** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
**
** In addition, as a special exception, Nokia gives you certain
** additional rights. These rights are described in the Nokia Qt LGPL
** Exception version 1.0, included in the file LGPL_EXCEPTION.txt in this
** package.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** General Public License version 3.0 as published by the Free Software
** Foundation and appearing in the file LICENSE.GPL included in the
** packaging of this file. Please review the following information to
** ensure the GNU General Public License version 3.0 requirements will be
** met: http://www.gnu.org/copyleft/gpl.html.
**
** If you are unsure which license is appropriate for your use, please
** contact the sales department at http://qt.nokia.com/contact.
** $QT_END_LICENSE$
**
****************************************************************************/
#include "certificateinfo.h"
#include "sslclient.h"
#include "ui_sslclient.h"
#include "ui_sslerrors.h"
#include <QtGui/QScrollBar>
#include <QtGui/QStyle>
#include <QtGui/QToolButton>
#include <QtNetwork/QSslCipher>
SslClient::SslClient(QWidget *parent)
: QWidget(parent), socket(0), padLock(0), executingDialog(false)
{
form = new Ui_Form;
form->setupUi(this);
form->hostNameEdit->setSelection(0, form->hostNameEdit->text().size());
form->sessionOutput->setHtml(tr("<not connected>"));
connect(form->hostNameEdit, SIGNAL(textChanged(QString)),
this, SLOT(updateEnabledState()));
connect(form->connectButton, SIGNAL(clicked()),
this, SLOT(secureConnect()));
connect(form->sendButton, SIGNAL(clicked()),
this, SLOT(sendData()));
}
SslClient::~SslClient()
{
delete form;
}
void SslClient::updateEnabledState()
{
bool unconnected = !socket || socket->state() == QAbstractSocket::UnconnectedState;
form->hostNameEdit->setReadOnly(!unconnected);
form->hostNameEdit->setFocusPolicy(unconnected ? Qt::StrongFocus : Qt::NoFocus);
form->hostNameLabel->setEnabled(unconnected);
form->portBox->setEnabled(unconnected);
form->portLabel->setEnabled(unconnected);
form->connectButton->setEnabled(unconnected && !form->hostNameEdit->text().isEmpty());
bool connected = socket && socket->state() == QAbstractSocket::ConnectedState;
form->sessionBox->setEnabled(connected);
form->sessionOutput->setEnabled(connected);
form->sessionInput->setEnabled(connected);
form->sessionInputLabel->setEnabled(connected);
form->sendButton->setEnabled(connected);
}
void SslClient::secureConnect()
{
if (!socket) {
socket = new QSslSocket(this);
connect(socket, SIGNAL(stateChanged(QAbstractSocket::SocketState)),
this, SLOT(socketStateChanged(QAbstractSocket::SocketState)));
connect(socket, SIGNAL(encrypted()),
this, SLOT(socketEncrypted()));
connect(socket, SIGNAL(sslErrors(QList<QSslError>)),
this, SLOT(sslErrors(QList<QSslError>)));
connect(socket, SIGNAL(readyRead()),
this, SLOT(socketReadyRead()));
}
socket->connectToHostEncrypted(form->hostNameEdit->text(), form->portBox->value());
updateEnabledState();
}
void SslClient::socketStateChanged(QAbstractSocket::SocketState state)
{
if (executingDialog)
return;
updateEnabledState();
if (state == QAbstractSocket::UnconnectedState) {
form->hostNameEdit->setPalette(QPalette());
form->hostNameEdit->setFocus();
form->cipherLabel->setText(tr("<none>"));
if (padLock)
padLock->hide();
socket->deleteLater();
socket = 0;
}
}
void SslClient::socketEncrypted()
{
if (!socket)
return; // might have disconnected already
form->sessionOutput->clear();
form->sessionInput->setFocus();
QPalette palette;
palette.setColor(QPalette::Base, QColor(255, 255, 192));
form->hostNameEdit->setPalette(palette);
QSslCipher ciph = socket->sessionCipher();
QString cipher = QString("%1, %2 (%3/%4)").arg(ciph.authenticationMethod())
.arg(ciph.name()).arg(ciph.usedBits()).arg(ciph.supportedBits());;
form->cipherLabel->setText(cipher);
if (!padLock) {
padLock = new QToolButton;
padLock->setIcon(QIcon(":/encrypted.png"));
padLock->setCursor(Qt::ArrowCursor);
padLock->setToolTip(tr("Display encryption details."));
int extent = form->hostNameEdit->height() - 2;
padLock->resize(extent, extent);
padLock->setSizePolicy(QSizePolicy::Fixed, QSizePolicy::Ignored);
QHBoxLayout *layout = new QHBoxLayout(form->hostNameEdit);
layout->setMargin(form->hostNameEdit->style()->pixelMetric(QStyle::PM_DefaultFrameWidth));
layout->setSpacing(0);
layout->addStretch();
layout->addWidget(padLock);
form->hostNameEdit->setLayout(layout);
connect(padLock, SIGNAL(clicked()),
this, SLOT(displayCertificateInfo()));
} else {
padLock->show();
}
}
void SslClient::socketReadyRead()
{
appendString(QString::fromUtf8(socket->readAll()));
}
void SslClient::sendData()
{
QString input = form->sessionInput->text();
appendString(input + "\n");
socket->write(input.toUtf8() + "\r\n");
form->sessionInput->clear();
}
void SslClient::sslErrors(const QList<QSslError> &errors)
{
QDialog errorDialog(this);
Ui_SslErrors ui;
ui.setupUi(&errorDialog);
connect(ui.certificateChainButton, SIGNAL(clicked()),
this, SLOT(displayCertificateInfo()));
foreach (const QSslError &error, errors)
ui.sslErrorList->addItem(error.errorString());
executingDialog = true;
if (errorDialog.exec() == QDialog::Accepted)
socket->ignoreSslErrors();
executingDialog = false;
// did the socket state change?
if (socket->state() != QAbstractSocket::ConnectedState)
socketStateChanged(socket->state());
}
void SslClient::displayCertificateInfo()
{
CertificateInfo *info = new CertificateInfo(this);
info->setCertificateChain(socket->peerCertificateChain());
info->exec();
info->deleteLater();
}
void SslClient::appendString(const QString &line)
{
QTextCursor cursor(form->sessionOutput->textCursor());
cursor.movePosition(QTextCursor::End);
cursor.insertText(line);
form->sessionOutput->verticalScrollBar()->setValue(form->sessionOutput->verticalScrollBar()->maximum());
}
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