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| ** This file is part of the examples of the Qt Toolkit. |
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| |
| #include "certificateinfo.h" |
| #include "sslclient.h" |
| |
| #include "ui_sslclient.h" |
| #include "ui_sslerrors.h" |
| |
| #include <QtCore> |
| |
| SslClient::SslClient(QWidget *parent) |
| : QWidget(parent) |
| { |
| setupUi(); |
| setupSecureSocket(); |
| } |
| |
| SslClient::~SslClient() |
| { |
| delete form; |
| } |
| |
| void SslClient::updateEnabledState() |
| { |
| const bool unconnected = 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()); |
| |
| const bool connected = socket->state() == QAbstractSocket::ConnectedState; |
| form->sessionOutput->setEnabled(connected); |
| form->sessionInput->setEnabled(connected); |
| form->sessionInputLabel->setEnabled(connected); |
| form->sendButton->setEnabled(connected); |
| } |
| |
| void SslClient::secureConnect() |
| { |
| socket->connectToHostEncrypted(form->hostNameEdit->text(), form->portBox->value()); |
| updateEnabledState(); |
| } |
| |
| void SslClient::socketStateChanged(QAbstractSocket::SocketState state) |
| { |
| if (executingDialog) |
| return; |
| |
| updateEnabledState(); |
| |
| if (state == QAbstractSocket::UnconnectedState) { |
| form->sessionInput->clear(); |
| form->hostNameEdit->setPalette(QPalette()); |
| form->hostNameEdit->setFocus(); |
| form->cipherLabel->setText(tr("<none>")); |
| padLock->hide(); |
| } |
| } |
| |
| void SslClient::socketEncrypted() |
| { |
| form->sessionOutput->clear(); |
| form->sessionInput->setFocus(); |
| |
| QPalette palette; |
| palette.setColor(QPalette::Base, QColor(255, 255, 192)); |
| form->hostNameEdit->setPalette(palette); |
| |
| const QSslCipher cipher = socket->sessionCipher(); |
| const QString cipherInfo = QString("%1, %2 (%3/%4)").arg(cipher.authenticationMethod()) |
| .arg(cipher.name()).arg(cipher.usedBits()) |
| .arg(cipher.supportedBits());; |
| form->cipherLabel->setText(cipherInfo); |
| padLock->show(); |
| } |
| |
| void SslClient::socketReadyRead() |
| { |
| appendString(QString::fromUtf8(socket->readAll())); |
| } |
| |
| void SslClient::sendData() |
| { |
| const QString input = form->sessionInput->text(); |
| appendString(input + '\n'); |
| socket->write(input.toUtf8() + "\r\n"); |
| form->sessionInput->clear(); |
| } |
| |
| void SslClient::socketError(QAbstractSocket::SocketError) |
| { |
| if (handlingSocketError) |
| return; |
| |
| handlingSocketError = true; |
| QMessageBox::critical(this, tr("Connection error"), socket->errorString()); |
| handlingSocketError = false; |
| } |
| |
| void SslClient::sslErrors(const QList<QSslError> &errors) |
| { |
| QDialog errorDialog(this); |
| Ui_SslErrors ui; |
| ui.setupUi(&errorDialog); |
| connect(ui.certificateChainButton, &QPushButton::clicked, |
| this, &SslClient::displayCertificateInfo); |
| |
| for (const auto &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; |
| info.setCertificateChain(socket->peerCertificateChain()); |
| info.exec(); |
| } |
| |
| void SslClient::setupUi() |
| { |
| if (form) |
| return; |
| |
| 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())); |
| |
| padLock = new QToolButton; |
| padLock->setIcon(QIcon(":/encrypted.png")); |
| connect(padLock, SIGNAL(clicked()), this, SLOT(displayCertificateInfo())); |
| |
| #if QT_CONFIG(cursor) |
| padLock->setCursor(Qt::ArrowCursor); |
| #endif |
| padLock->setToolTip(tr("Display encryption details.")); |
| |
| const int extent = form->hostNameEdit->height() - 2; |
| padLock->resize(extent, extent); |
| padLock->setSizePolicy(QSizePolicy::Fixed, QSizePolicy::Ignored); |
| |
| QHBoxLayout *layout = new QHBoxLayout(form->hostNameEdit); |
| const int margin = form->hostNameEdit->style()->pixelMetric(QStyle::PM_DefaultFrameWidth); |
| layout->setContentsMargins(margin, margin, margin, margin); |
| layout->setSpacing(0); |
| layout->addStretch(); |
| layout->addWidget(padLock); |
| |
| form->hostNameEdit->setLayout(layout); |
| padLock->hide(); |
| } |
| |
| void SslClient::setupSecureSocket() |
| { |
| if (socket) |
| return; |
| |
| 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(error(QAbstractSocket::SocketError)), |
| this, SLOT(socketError(QAbstractSocket::SocketError))); |
| connect(socket, SIGNAL(sslErrors(QList<QSslError>)), |
| this, SLOT(sslErrors(QList<QSslError>))); |
| connect(socket, SIGNAL(readyRead()), |
| this, SLOT(socketReadyRead())); |
| |
| } |
| |
| 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()); |
| } |