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+/****************************************************************************
+**
+** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+** Contact: Qt Software Information (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 qt-sales@nokia.com.
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#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("&lt;not connected&gt;"));
+
+ 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());
+}