Long live Qt 4.5!

5 files changed, 548 insertions, 0 deletions

diff --git a/examples/network/http/authenticationdialog.ui b/examples/network/http/authenticationdialog.ui
new file mode 100644
index 0000000..82d908c
--- /dev/null
+++ b/examples/network/http/authenticationdialog.ui
@@ -0,0 +1,129 @@
+<ui version="4.0" >
+ <class>Dialog</class>
+ <widget class="QDialog" name="Dialog" >
+  <property name="geometry" >
+   <rect>
+    <x>0</x>
+    <y>0</y>
+    <width>389</width>
+    <height>243</height>
+   </rect>
+  </property>
+  <property name="windowTitle" >
+   <string>Http authentication required</string>
+  </property>
+  <layout class="QGridLayout" >
+   <item row="0" column="0" colspan="2" >
+    <widget class="QLabel" name="label" >
+     <property name="text" >
+      <string>You need to supply a Username and a Password to access this site</string>
+     </property>
+     <property name="wordWrap" >
+      <bool>false</bool>
+     </property>
+    </widget>
+   </item>
+   <item row="2" column="0" >
+    <widget class="QLabel" name="label_2" >
+     <property name="text" >
+      <string>Username:</string>
+     </property>
+    </widget>
+   </item>
+   <item row="2" column="1" >
+    <widget class="QLineEdit" name="userEdit" />
+   </item>
+   <item row="3" column="0" >
+    <widget class="QLabel" name="label_3" >
+     <property name="text" >
+      <string>Password:</string>
+     </property>
+    </widget>
+   </item>
+   <item row="3" column="1" >
+    <widget class="QLineEdit" name="passwordEdit" />
+   </item>
+   <item row="5" column="0" colspan="2" >
+    <widget class="QDialogButtonBox" name="buttonBox" >
+     <property name="orientation" >
+      <enum>Qt::Horizontal</enum>
+     </property>
+     <property name="standardButtons" >
+      <set>QDialogButtonBox::Cancel|QDialogButtonBox::Ok</set>
+     </property>
+    </widget>
+   </item>
+   <item row="1" column="0" >
+    <widget class="QLabel" name="label_4" >
+     <property name="text" >
+      <string>Site:</string>
+     </property>
+    </widget>
+   </item>
+   <item row="1" column="1" >
+    <widget class="QLabel" name="siteDescription" >
+     <property name="font" >
+      <font>
+       <weight>75</weight>
+       <bold>true</bold>
+      </font>
+     </property>
+     <property name="text" >
+      <string>%1 at %2</string>
+     </property>
+     <property name="wordWrap" >
+      <bool>true</bool>
+     </property>
+    </widget>
+   </item>
+   <item row="4" column="0" >
+    <spacer>
+     <property name="orientation" >
+      <enum>Qt::Vertical</enum>
+     </property>
+     <property name="sizeHint" >
+      <size>
+       <width>20</width>
+       <height>40</height>
+      </size>
+     </property>
+    </spacer>
+   </item>
+  </layout>
+ </widget>
+ <resources/>
+ <connections>
+  <connection>
+   <sender>buttonBox</sender>
+   <signal>accepted()</signal>
+   <receiver>Dialog</receiver>
+   <slot>accept()</slot>
+   <hints>
+    <hint type="sourcelabel" >
+     <x>248</x>
+     <y>254</y>
+    </hint>
+    <hint type="destinationlabel" >
+     <x>157</x>
+     <y>274</y>
+    </hint>
+   </hints>
+  </connection>
+  <connection>
+   <sender>buttonBox</sender>
+   <signal>rejected()</signal>
+   <receiver>Dialog</receiver>
+   <slot>reject()</slot>
+   <hints>
+    <hint type="sourcelabel" >
+     <x>316</x>
+     <y>260</y>
+    </hint>
+    <hint type="destinationlabel" >
+     <x>286</x>
+     <y>274</y>
+    </hint>
+   </hints>
+  </connection>
+ </connections>
+</ui>
diff --git a/examples/network/http/http.pro b/examples/network/http/http.pro
new file mode 100644
index 0000000..7f58d9f
--- /dev/null
+++ b/examples/network/http/http.pro
@@ -0,0 +1,11 @@
+HEADERS += httpwindow.h
+SOURCES += httpwindow.cpp \
+           main.cpp
+FORMS += authenticationdialog.ui
+QT += network
+
+# install
+target.path = $$[QT_INSTALL_EXAMPLES]/network/http
+sources.files = $$SOURCES $$HEADERS $$RESOURCES $$FORMS http.pro
+sources.path = $$[QT_INSTALL_EXAMPLES]/network/http
+INSTALLS += target sources
diff --git a/examples/network/http/httpwindow.cpp b/examples/network/http/httpwindow.cpp
new file mode 100644
index 0000000..ebde770
--- /dev/null
+++ b/examples/network/http/httpwindow.cpp
@@ -0,0 +1,262 @@
+/****************************************************************************
+**
+** 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 <QtGui>
+#include <QtNetwork>
+
+#include "httpwindow.h"
+#include "ui_authenticationdialog.h"
+
+HttpWindow::HttpWindow(QWidget *parent)
+    : QDialog(parent)
+{
+#ifndef QT_NO_OPENSSL
+    urlLineEdit = new QLineEdit("https://");
+#else
+    urlLineEdit = new QLineEdit("http://");
+#endif
+
+    urlLabel = new QLabel(tr("&URL:"));
+    urlLabel->setBuddy(urlLineEdit);
+    statusLabel = new QLabel(tr("Please enter the URL of a file you want to "
+                                "download."));
+
+    downloadButton = new QPushButton(tr("Download"));
+    downloadButton->setDefault(true);
+    quitButton = new QPushButton(tr("Quit"));
+    quitButton->setAutoDefault(false);
+
+    buttonBox = new QDialogButtonBox;
+    buttonBox->addButton(downloadButton, QDialogButtonBox::ActionRole);
+    buttonBox->addButton(quitButton, QDialogButtonBox::RejectRole);
+
+    progressDialog = new QProgressDialog(this);
+
+    http = new QHttp(this);
+
+    connect(urlLineEdit, SIGNAL(textChanged(const QString &)),
+            this, SLOT(enableDownloadButton()));
+    connect(http, SIGNAL(requestFinished(int, bool)),
+            this, SLOT(httpRequestFinished(int, bool)));
+    connect(http, SIGNAL(dataReadProgress(int, int)),
+            this, SLOT(updateDataReadProgress(int, int)));
+    connect(http, SIGNAL(responseHeaderReceived(const QHttpResponseHeader &)),
+            this, SLOT(readResponseHeader(const QHttpResponseHeader &)));
+    connect(http, SIGNAL(authenticationRequired(const QString &, quint16, QAuthenticator *)),
+            this, SLOT(slotAuthenticationRequired(const QString &, quint16, QAuthenticator *)));
+#ifndef QT_NO_OPENSSL
+    connect(http, SIGNAL(sslErrors(const QList<QSslError> &)),
+            this, SLOT(sslErrors(const QList<QSslError> &)));
+#endif
+    connect(progressDialog, SIGNAL(canceled()), this, SLOT(cancelDownload()));
+    connect(downloadButton, SIGNAL(clicked()), this, SLOT(downloadFile()));
+    connect(quitButton, SIGNAL(clicked()), this, SLOT(close()));
+
+    QHBoxLayout *topLayout = new QHBoxLayout;
+    topLayout->addWidget(urlLabel);
+    topLayout->addWidget(urlLineEdit);
+
+    QVBoxLayout *mainLayout = new QVBoxLayout;
+    mainLayout->addLayout(topLayout);
+    mainLayout->addWidget(statusLabel);
+    mainLayout->addWidget(buttonBox);
+    setLayout(mainLayout);
+
+    setWindowTitle(tr("HTTP"));
+    urlLineEdit->setFocus();
+}
+
+void HttpWindow::downloadFile()
+{
+    QUrl url(urlLineEdit->text());
+    QFileInfo fileInfo(url.path());
+    QString fileName = fileInfo.fileName();
+    if (fileName.isEmpty())
+        fileName = "index.html";
+
+    if (QFile::exists(fileName)) {
+        if (QMessageBox::question(this, tr("HTTP"), 
+                                  tr("There already exists a file called %1 in "
+                                     "the current directory. Overwrite?").arg(fileName),
+                                  QMessageBox::Ok|QMessageBox::Cancel, QMessageBox::Cancel)
+            == QMessageBox::Cancel)
+            return;
+        QFile::remove(fileName);
+    }
+
+    file = new QFile(fileName);
+    if (!file->open(QIODevice::WriteOnly)) {
+        QMessageBox::information(this, tr("HTTP"),
+                                 tr("Unable to save the file %1: %2.")
+                                 .arg(fileName).arg(file->errorString()));
+        delete file;
+        file = 0;
+        return;
+    }
+
+    QHttp::ConnectionMode mode = url.scheme().toLower() == "https" ? QHttp::ConnectionModeHttps : QHttp::ConnectionModeHttp;
+    http->setHost(url.host(), mode, url.port() == -1 ? 0 : url.port());
+    
+    if (!url.userName().isEmpty())
+        http->setUser(url.userName(), url.password());
+
+    httpRequestAborted = false;
+    QByteArray path = QUrl::toPercentEncoding(url.path(), "!$&'()*+,;=:@/");
+    if (path.isEmpty())
+        path = "/";
+    httpGetId = http->get(path, file);
+
+    progressDialog->setWindowTitle(tr("HTTP"));
+    progressDialog->setLabelText(tr("Downloading %1.").arg(fileName));
+    downloadButton->setEnabled(false);
+}
+
+void HttpWindow::cancelDownload()
+{
+    statusLabel->setText(tr("Download canceled."));
+    httpRequestAborted = true;
+    http->abort();
+    downloadButton->setEnabled(true);
+}
+
+void HttpWindow::httpRequestFinished(int requestId, bool error)
+{
+    if (requestId != httpGetId)
+        return;
+    if (httpRequestAborted) {
+        if (file) {
+            file->close();
+            file->remove();
+            delete file;
+            file = 0;
+        }
+
+        progressDialog->hide();
+        return;
+    }
+
+    if (requestId != httpGetId)
+        return;
+
+    progressDialog->hide();
+    file->close();
+
+    if (error) {
+        file->remove();
+        QMessageBox::information(this, tr("HTTP"),
+                                 tr("Download failed: %1.")
+                                 .arg(http->errorString()));
+    } else {
+        QString fileName = QFileInfo(QUrl(urlLineEdit->text()).path()).fileName();
+        statusLabel->setText(tr("Downloaded %1 to current directory.").arg(fileName));
+    }
+
+    downloadButton->setEnabled(true);
+    delete file;
+    file = 0;
+}
+
+void HttpWindow::readResponseHeader(const QHttpResponseHeader &responseHeader)
+{
+    switch (responseHeader.statusCode()) {
+    case 200:                   // Ok
+    case 301:                   // Moved Permanently
+    case 302:                   // Found
+    case 303:                   // See Other
+    case 307:                   // Temporary Redirect
+        // these are not error conditions
+        break;
+
+    default:
+        QMessageBox::information(this, tr("HTTP"),
+                                 tr("Download failed: %1.")
+                                 .arg(responseHeader.reasonPhrase()));
+        httpRequestAborted = true;
+        progressDialog->hide();
+        http->abort();
+    }
+}
+
+void HttpWindow::updateDataReadProgress(int bytesRead, int totalBytes)
+{
+    if (httpRequestAborted)
+        return;
+
+    progressDialog->setMaximum(totalBytes);
+    progressDialog->setValue(bytesRead);
+}
+
+void HttpWindow::enableDownloadButton()
+{
+    downloadButton->setEnabled(!urlLineEdit->text().isEmpty());
+}
+
+void HttpWindow::slotAuthenticationRequired(const QString &hostName, quint16, QAuthenticator *authenticator)
+{
+    QDialog dlg;
+    Ui::Dialog ui;
+    ui.setupUi(&dlg);
+    dlg.adjustSize();
+    ui.siteDescription->setText(tr("%1 at %2").arg(authenticator->realm()).arg(hostName));
+    
+    if (dlg.exec() == QDialog::Accepted) {
+        authenticator->setUser(ui.userEdit->text());
+        authenticator->setPassword(ui.passwordEdit->text());
+    }
+}
+
+#ifndef QT_NO_OPENSSL
+void HttpWindow::sslErrors(const QList<QSslError> &errors)
+{
+    QString errorString;
+    foreach (const QSslError &error, errors) {
+        if (!errorString.isEmpty())
+            errorString += ", ";
+        errorString += error.errorString();
+    }
+    
+    if (QMessageBox::warning(this, tr("HTTP Example"),
+                             tr("One or more SSL errors has occurred: %1").arg(errorString),
+                             QMessageBox::Ignore | QMessageBox::Abort) == QMessageBox::Ignore) {
+        http->ignoreSslErrors();
+    }
+}
+#endif
diff --git a/examples/network/http/httpwindow.h b/examples/network/http/httpwindow.h
new file mode 100644
index 0000000..f0fb504
--- /dev/null
+++ b/examples/network/http/httpwindow.h
@@ -0,0 +1,94 @@
+/****************************************************************************
+**
+** 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.
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#ifndef HTTPWINDOW_H
+#define HTTPWINDOW_H
+
+#include <QDialog>
+
+QT_BEGIN_NAMESPACE
+class QDialogButtonBox;
+class QFile;
+class QHttp;
+class QHttpResponseHeader;
+class QLabel;
+class QLineEdit;
+class QProgressDialog;
+class QPushButton;
+class QSslError;
+class QAuthenticator;
+QT_END_NAMESPACE
+
+class HttpWindow : public QDialog
+{
+    Q_OBJECT
+
+public:
+    HttpWindow(QWidget *parent = 0);
+
+private slots:
+    void downloadFile();
+    void cancelDownload();
+    void httpRequestFinished(int requestId, bool error);
+    void readResponseHeader(const QHttpResponseHeader &responseHeader);
+    void updateDataReadProgress(int bytesRead, int totalBytes);
+    void enableDownloadButton();
+    void slotAuthenticationRequired(const QString &, quint16, QAuthenticator *);
+#ifndef QT_NO_OPENSSL
+    void sslErrors(const QList<QSslError> &errors);
+#endif
+
+private:
+    QLabel *statusLabel;
+    QLabel *urlLabel;
+    QLineEdit *urlLineEdit;
+    QProgressDialog *progressDialog;
+    QPushButton *downloadButton;
+    QPushButton *quitButton;
+    QDialogButtonBox *buttonBox;
+
+    QHttp *http;
+    QFile *file;
+    int httpGetId;
+    bool httpRequestAborted;
+};
+
+#endif
diff --git a/examples/network/http/main.cpp b/examples/network/http/main.cpp
new file mode 100644
index 0000000..dba4082
--- /dev/null
+++ b/examples/network/http/main.cpp
@@ -0,0 +1,52 @@
+/****************************************************************************
+**
+** 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 <QApplication>
+
+#include "httpwindow.h"
+
+int main(int argc, char *argv[])
+{
+    QApplication app(argc, argv);
+    HttpWindow httpWin;
+    httpWin.show();
+    return httpWin.exec();
+}