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1 /**************************************************************************** |
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2 ** |
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3 ** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies). |
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4 ** All rights reserved. |
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5 ** Contact: Nokia Corporation (qt-info@nokia.com) |
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6 ** |
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7 ** This file is part of the examples of the Qt Toolkit. |
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8 ** |
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9 ** $QT_BEGIN_LICENSE:LGPL$ |
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10 ** No Commercial Usage |
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11 ** This file contains pre-release code and may not be distributed. |
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12 ** You may use this file in accordance with the terms and conditions |
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13 ** contained in the Technology Preview License Agreement accompanying |
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14 ** this package. |
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15 ** |
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16 ** GNU Lesser General Public License Usage |
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17 ** Alternatively, this file may be used under the terms of the GNU Lesser |
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18 ** General Public License version 2.1 as published by the Free Software |
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19 ** Foundation and appearing in the file LICENSE.LGPL included in the |
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20 ** packaging of this file. Please review the following information to |
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21 ** ensure the GNU Lesser General Public License version 2.1 requirements |
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22 ** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html. |
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23 ** |
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24 ** In addition, as a special exception, Nokia gives you certain additional |
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25 ** rights. These rights are described in the Nokia Qt LGPL Exception |
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26 ** version 1.1, included in the file LGPL_EXCEPTION.txt in this package. |
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27 ** |
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28 ** If you have questions regarding the use of this file, please contact |
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29 ** Nokia at qt-info@nokia.com. |
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30 ** |
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31 ** |
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32 ** |
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33 ** |
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34 ** |
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35 ** |
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36 ** |
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37 ** |
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38 ** $QT_END_LICENSE$ |
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39 ** |
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40 ****************************************************************************/ |
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41 |
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42 #include "certificateinfo.h" |
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43 #include "sslclient.h" |
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44 #include "ui_sslclient.h" |
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45 #include "ui_sslerrors.h" |
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46 |
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47 #include <QtGui/QScrollBar> |
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48 #include <QtGui/QStyle> |
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49 #include <QtGui/QToolButton> |
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50 #include <QtNetwork/QSslCipher> |
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51 |
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52 SslClient::SslClient(QWidget *parent) |
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53 : QWidget(parent), socket(0), padLock(0), executingDialog(false) |
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54 { |
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55 form = new Ui_Form; |
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56 form->setupUi(this); |
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57 form->hostNameEdit->setSelection(0, form->hostNameEdit->text().size()); |
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58 form->sessionOutput->setHtml(tr("<not connected>")); |
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59 |
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60 connect(form->hostNameEdit, SIGNAL(textChanged(QString)), |
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61 this, SLOT(updateEnabledState())); |
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62 connect(form->connectButton, SIGNAL(clicked()), |
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63 this, SLOT(secureConnect())); |
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64 connect(form->sendButton, SIGNAL(clicked()), |
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65 this, SLOT(sendData())); |
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66 } |
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67 |
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68 SslClient::~SslClient() |
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69 { |
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70 delete form; |
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71 } |
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72 |
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73 void SslClient::updateEnabledState() |
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74 { |
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75 bool unconnected = !socket || socket->state() == QAbstractSocket::UnconnectedState; |
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76 |
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77 form->hostNameEdit->setReadOnly(!unconnected); |
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78 form->hostNameEdit->setFocusPolicy(unconnected ? Qt::StrongFocus : Qt::NoFocus); |
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79 |
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80 form->hostNameLabel->setEnabled(unconnected); |
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81 form->portBox->setEnabled(unconnected); |
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82 form->portLabel->setEnabled(unconnected); |
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83 form->connectButton->setEnabled(unconnected && !form->hostNameEdit->text().isEmpty()); |
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84 |
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85 bool connected = socket && socket->state() == QAbstractSocket::ConnectedState; |
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86 form->sessionBox->setEnabled(connected); |
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87 form->sessionOutput->setEnabled(connected); |
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88 form->sessionInput->setEnabled(connected); |
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89 form->sessionInputLabel->setEnabled(connected); |
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90 form->sendButton->setEnabled(connected); |
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91 } |
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92 |
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93 void SslClient::secureConnect() |
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94 { |
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95 if (!socket) { |
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96 socket = new QSslSocket(this); |
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97 connect(socket, SIGNAL(stateChanged(QAbstractSocket::SocketState)), |
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98 this, SLOT(socketStateChanged(QAbstractSocket::SocketState))); |
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99 connect(socket, SIGNAL(encrypted()), |
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100 this, SLOT(socketEncrypted())); |
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101 connect(socket, SIGNAL(sslErrors(QList<QSslError>)), |
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102 this, SLOT(sslErrors(QList<QSslError>))); |
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103 connect(socket, SIGNAL(readyRead()), |
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104 this, SLOT(socketReadyRead())); |
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105 } |
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106 |
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107 socket->connectToHostEncrypted(form->hostNameEdit->text(), form->portBox->value()); |
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108 updateEnabledState(); |
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109 } |
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110 |
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111 void SslClient::socketStateChanged(QAbstractSocket::SocketState state) |
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112 { |
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113 if (executingDialog) |
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114 return; |
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115 |
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116 updateEnabledState(); |
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117 if (state == QAbstractSocket::UnconnectedState) { |
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118 form->hostNameEdit->setPalette(QPalette()); |
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119 form->hostNameEdit->setFocus(); |
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120 form->cipherLabel->setText(tr("<none>")); |
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121 if (padLock) |
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122 padLock->hide(); |
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123 socket->deleteLater(); |
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124 socket = 0; |
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125 } |
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126 } |
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127 |
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128 void SslClient::socketEncrypted() |
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129 { |
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130 if (!socket) |
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131 return; // might have disconnected already |
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132 |
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133 form->sessionOutput->clear(); |
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134 form->sessionInput->setFocus(); |
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135 |
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136 QPalette palette; |
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137 palette.setColor(QPalette::Base, QColor(255, 255, 192)); |
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138 form->hostNameEdit->setPalette(palette); |
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139 |
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140 QSslCipher ciph = socket->sessionCipher(); |
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141 QString cipher = QString("%1, %2 (%3/%4)").arg(ciph.authenticationMethod()) |
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142 .arg(ciph.name()).arg(ciph.usedBits()).arg(ciph.supportedBits());; |
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143 form->cipherLabel->setText(cipher); |
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144 |
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145 if (!padLock) { |
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146 padLock = new QToolButton; |
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147 padLock->setIcon(QIcon(":/encrypted.png")); |
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148 #ifndef QT_NO_CURSOR |
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149 padLock->setCursor(Qt::ArrowCursor); |
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150 #endif |
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151 padLock->setToolTip(tr("Display encryption details.")); |
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152 |
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153 int extent = form->hostNameEdit->height() - 2; |
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154 padLock->resize(extent, extent); |
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155 padLock->setSizePolicy(QSizePolicy::Fixed, QSizePolicy::Ignored); |
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156 |
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157 QHBoxLayout *layout = new QHBoxLayout(form->hostNameEdit); |
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158 layout->setMargin(form->hostNameEdit->style()->pixelMetric(QStyle::PM_DefaultFrameWidth)); |
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159 layout->setSpacing(0); |
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160 layout->addStretch(); |
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161 layout->addWidget(padLock); |
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162 |
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163 form->hostNameEdit->setLayout(layout); |
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164 |
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165 connect(padLock, SIGNAL(clicked()), |
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166 this, SLOT(displayCertificateInfo())); |
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167 } else { |
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168 padLock->show(); |
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169 } |
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170 } |
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171 |
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172 void SslClient::socketReadyRead() |
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173 { |
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174 appendString(QString::fromUtf8(socket->readAll())); |
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175 } |
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176 |
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177 void SslClient::sendData() |
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178 { |
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179 QString input = form->sessionInput->text(); |
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180 appendString(input + "\n"); |
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181 socket->write(input.toUtf8() + "\r\n"); |
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182 form->sessionInput->clear(); |
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183 } |
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184 |
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185 void SslClient::sslErrors(const QList<QSslError> &errors) |
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186 { |
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187 QDialog errorDialog(this); |
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188 Ui_SslErrors ui; |
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189 ui.setupUi(&errorDialog); |
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190 connect(ui.certificateChainButton, SIGNAL(clicked()), |
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191 this, SLOT(displayCertificateInfo())); |
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192 |
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193 foreach (const QSslError &error, errors) |
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194 ui.sslErrorList->addItem(error.errorString()); |
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195 |
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196 executingDialog = true; |
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197 if (errorDialog.exec() == QDialog::Accepted) |
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198 socket->ignoreSslErrors(); |
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199 executingDialog = false; |
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200 |
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201 // did the socket state change? |
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202 if (socket->state() != QAbstractSocket::ConnectedState) |
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203 socketStateChanged(socket->state()); |
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204 } |
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205 |
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206 void SslClient::displayCertificateInfo() |
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207 { |
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208 CertificateInfo *info = new CertificateInfo(this); |
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209 info->setCertificateChain(socket->peerCertificateChain()); |
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210 info->exec(); |
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211 info->deleteLater(); |
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212 } |
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213 |
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214 void SslClient::appendString(const QString &line) |
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215 { |
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216 QTextCursor cursor(form->sessionOutput->textCursor()); |
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217 cursor.movePosition(QTextCursor::End); |
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218 cursor.insertText(line); |
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219 form->sessionOutput->verticalScrollBar()->setValue(form->sessionOutput->verticalScrollBar()->maximum()); |
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220 } |