--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/examples/network/securesocketclient/sslclient.cpp	Mon Jan 11 14:00:40 2010 +0000
@@ -0,0 +1,220 @@
+/****************************************************************************
+**
+** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+** All rights reserved.
+** 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 Technology Preview License Agreement accompanying
+** this package.
+**
+** 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 1.1, included in the file LGPL_EXCEPTION.txt in this package.
+**
+** If you have questions regarding the use of this file, please contact
+** Nokia at qt-info@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"));
+#ifndef QT_NO_CURSOR
+        padLock->setCursor(Qt::ArrowCursor);
+#endif
+        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());
+}