225 lines
7.6 KiB
C++
225 lines
7.6 KiB
C++
/****************************************************************************
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**
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** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies).
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** All rights reserved.
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** Contact: Nokia Corporation (qt-info@nokia.com)
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**
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** This file is part of the examples of the Qt Toolkit.
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**
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** $QT_BEGIN_LICENSE:BSD$
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** You may use this file under the terms of the BSD license as follows:
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**
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** "Redistribution and use in source and binary forms, with or without
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** modification, are permitted provided that the following conditions are
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** met:
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** * Redistributions of source code must retain the above copyright
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** notice, this list of conditions and the following disclaimer.
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** * Redistributions in binary form must reproduce the above copyright
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** notice, this list of conditions and the following disclaimer in
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** the documentation and/or other materials provided with the
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** distribution.
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** * Neither the name of Nokia Corporation and its Subsidiary(-ies) nor
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** the names of its contributors may be used to endorse or promote
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** products derived from this software without specific prior written
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** permission.
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**
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** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE."
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** $QT_END_LICENSE$
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**
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****************************************************************************/
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#include "certificateinfo.h"
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#include "sslclient.h"
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#include "ui_sslclient.h"
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#include "ui_sslerrors.h"
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#include <QtGui/QScrollBar>
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#include <QtGui/QStyle>
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#include <QtGui/QToolButton>
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#include <QtNetwork/QSslCipher>
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SslClient::SslClient(QWidget *parent)
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: QWidget(parent), socket(0), padLock(0), executingDialog(false)
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{
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form = new Ui_Form;
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form->setupUi(this);
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form->hostNameEdit->setSelection(0, form->hostNameEdit->text().size());
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form->sessionOutput->setHtml(tr("<not connected>"));
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connect(form->hostNameEdit, SIGNAL(textChanged(QString)),
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this, SLOT(updateEnabledState()));
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connect(form->connectButton, SIGNAL(clicked()),
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this, SLOT(secureConnect()));
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connect(form->sendButton, SIGNAL(clicked()),
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this, SLOT(sendData()));
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}
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SslClient::~SslClient()
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{
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delete form;
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}
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void SslClient::updateEnabledState()
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{
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bool unconnected = !socket || socket->state() == QAbstractSocket::UnconnectedState;
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form->hostNameEdit->setReadOnly(!unconnected);
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form->hostNameEdit->setFocusPolicy(unconnected ? Qt::StrongFocus : Qt::NoFocus);
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form->hostNameLabel->setEnabled(unconnected);
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form->portBox->setEnabled(unconnected);
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form->portLabel->setEnabled(unconnected);
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form->connectButton->setEnabled(unconnected && !form->hostNameEdit->text().isEmpty());
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bool connected = socket && socket->state() == QAbstractSocket::ConnectedState;
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form->sessionOutput->setEnabled(connected);
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form->sessionInput->setEnabled(connected);
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form->sessionInputLabel->setEnabled(connected);
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form->sendButton->setEnabled(connected);
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}
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void SslClient::secureConnect()
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{
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if (!socket) {
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socket = new QSslSocket(this);
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connect(socket, SIGNAL(stateChanged(QAbstractSocket::SocketState)),
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this, SLOT(socketStateChanged(QAbstractSocket::SocketState)));
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connect(socket, SIGNAL(encrypted()),
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this, SLOT(socketEncrypted()));
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connect(socket, SIGNAL(sslErrors(QList<QSslError>)),
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this, SLOT(sslErrors(QList<QSslError>)));
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connect(socket, SIGNAL(readyRead()),
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this, SLOT(socketReadyRead()));
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}
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socket->connectToHostEncrypted(form->hostNameEdit->text(), form->portBox->value());
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updateEnabledState();
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}
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void SslClient::socketStateChanged(QAbstractSocket::SocketState state)
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{
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if (executingDialog)
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return;
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updateEnabledState();
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if (state == QAbstractSocket::UnconnectedState) {
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form->hostNameEdit->setPalette(QPalette());
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form->hostNameEdit->setFocus();
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form->cipherLabel->setText(tr("<none>"));
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if (padLock)
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padLock->hide();
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socket->deleteLater();
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socket = 0;
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}
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}
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void SslClient::socketEncrypted()
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{
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if (!socket)
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return; // might have disconnected already
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form->sessionOutput->clear();
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form->sessionInput->setFocus();
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QPalette palette;
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palette.setColor(QPalette::Base, QColor(255, 255, 192));
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form->hostNameEdit->setPalette(palette);
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QSslCipher ciph = socket->sessionCipher();
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QString cipher = QString("%1, %2 (%3/%4)").arg(ciph.authenticationMethod())
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.arg(ciph.name()).arg(ciph.usedBits()).arg(ciph.supportedBits());;
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form->cipherLabel->setText(cipher);
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if (!padLock) {
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padLock = new QToolButton;
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padLock->setIcon(QIcon(":/encrypted.png"));
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#ifndef QT_NO_CURSOR
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padLock->setCursor(Qt::ArrowCursor);
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#endif
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padLock->setToolTip(tr("Display encryption details."));
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int extent = form->hostNameEdit->height() - 2;
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padLock->resize(extent, extent);
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padLock->setSizePolicy(QSizePolicy::Fixed, QSizePolicy::Ignored);
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QHBoxLayout *layout = new QHBoxLayout(form->hostNameEdit);
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layout->setMargin(form->hostNameEdit->style()->pixelMetric(QStyle::PM_DefaultFrameWidth));
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layout->setSpacing(0);
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layout->addStretch();
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layout->addWidget(padLock);
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form->hostNameEdit->setLayout(layout);
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connect(padLock, SIGNAL(clicked()),
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this, SLOT(displayCertificateInfo()));
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} else {
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padLock->show();
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}
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}
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void SslClient::socketReadyRead()
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{
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appendString(QString::fromUtf8(socket->readAll()));
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}
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void SslClient::sendData()
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{
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QString input = form->sessionInput->text();
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appendString(input + '\n');
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socket->write(input.toUtf8() + "\r\n");
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form->sessionInput->clear();
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}
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void SslClient::sslErrors(const QList<QSslError> &errors)
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{
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QDialog errorDialog(this);
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Ui_SslErrors ui;
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ui.setupUi(&errorDialog);
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connect(ui.certificateChainButton, SIGNAL(clicked()),
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this, SLOT(displayCertificateInfo()));
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foreach (const QSslError &error, errors)
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ui.sslErrorList->addItem(error.errorString());
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executingDialog = true;
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#ifdef Q_OS_SYMBIAN
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errorDialog.showMaximized();
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#endif
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if (errorDialog.exec() == QDialog::Accepted)
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socket->ignoreSslErrors();
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executingDialog = false;
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// did the socket state change?
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if (socket->state() != QAbstractSocket::ConnectedState)
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socketStateChanged(socket->state());
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}
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void SslClient::displayCertificateInfo()
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{
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CertificateInfo *info = new CertificateInfo(this);
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info->setCertificateChain(socket->peerCertificateChain());
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#ifdef Q_OS_SYMBIAN
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info->showMaximized();
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#endif
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info->exec();
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info->deleteLater();
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}
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void SslClient::appendString(const QString &line)
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{
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QTextCursor cursor(form->sessionOutput->textCursor());
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cursor.movePosition(QTextCursor::End);
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cursor.insertText(line);
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form->sessionOutput->verticalScrollBar()->setValue(form->sessionOutput->verticalScrollBar()->maximum());
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}
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