demos/browser/networkaccessmanager.cpp

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  41
  42 #include "networkaccessmanager.h"
  43
  44 #include "browserapplication.h"
  45 #include "browsermainwindow.h"
  46 #include "ui_passworddialog.h"
  47 #include "ui_proxy.h"
  48
  49 #include <QtCore/QSettings>
  50
  51 #include <QtGui/QDesktopServices>
  52 #include <QtGui/QDialog>
  53 #include <QtGui/QMessageBox>
  54 #include <QtGui/QStyle>
  55 #include <QtGui/QTextDocument>
  56
  57 #include <QtNetwork/QAuthenticator>
  58 #include <QtNetwork/QNetworkDiskCache>
  59 #include <QtNetwork/QNetworkProxy>
  60 #include <QtNetwork/QNetworkRequest>
  61 #include <QtNetwork/QNetworkReply>
  62 #include <QtNetwork/QSslError>
  63
  64 NetworkAccessManager::NetworkAccessManager(QObject *parent)
  65     : QNetworkAccessManager(parent),
  66     requestFinishedCount(0), requestFinishedFromCacheCount(0), requestFinishedPipelinedCount(0),
  67     requestFinishedSecureCount(0), requestFinishedDownloadBufferCount(0)
  68 {
  69     connect(this, SIGNAL(authenticationRequired(QNetworkReply*,QAuthenticator*)),
  70             SLOT(authenticationRequired(QNetworkReply*,QAuthenticator*)));
  71     connect(this, SIGNAL(proxyAuthenticationRequired(QNetworkProxy,QAuthenticator*)),
  72             SLOT(proxyAuthenticationRequired(QNetworkProxy,QAuthenticator*)));
  73     connect(this, SIGNAL(finished(QNetworkReply*)),
  74             SLOT(requestFinished(QNetworkReply*)));
  75 #ifndef QT_NO_OPENSSL
  76     connect(this, SIGNAL(sslErrors(QNetworkReply*,QList<QSslError>)),
  77             SLOT(sslErrors(QNetworkReply*,QList<QSslError>)));
  78 #endif
  79     loadSettings();
  80
  81     QNetworkDiskCache *diskCache = new QNetworkDiskCache(this);
  82     QString location = QDesktopServices::storageLocation(QDesktopServices::CacheLocation);
  83     diskCache->setCacheDirectory(location);
  84     setCache(diskCache);
  85 }
  86
  87 QNetworkReply* NetworkAccessManager::createRequest(Operation op, const QNetworkRequest & req, QIODevice * outgoingData)
  88 {
  89     QNetworkRequest request = req; // copy so we can modify
  90     // this is a temporary hack until we properly use the pipelining flags from QtWebkit
  91     // pipeline everything! :)
  92     request.setAttribute(QNetworkRequest::HttpPipeliningAllowedAttribute, true);
  93     return QNetworkAccessManager::createRequest(op, request, outgoingData);
  94 }
  95
  96 void NetworkAccessManager::requestFinished(QNetworkReply *reply)
  97 {
  98     requestFinishedCount++;
  99
 100     if (reply->attribute(QNetworkRequest::SourceIsFromCacheAttribute).toBool() == true)
 101         requestFinishedFromCacheCount++;
 102
 103     if (reply->attribute(QNetworkRequest::HttpPipeliningWasUsedAttribute).toBool() == true)
 104         requestFinishedPipelinedCount++;
 105
 106     if (reply->attribute(QNetworkRequest::ConnectionEncryptedAttribute).toBool() == true)
 107         requestFinishedSecureCount++;
 108
 109     if (reply->attribute(QNetworkRequest::DownloadBufferAttribute).isValid() == true)
 110         requestFinishedDownloadBufferCount++;
 111
 112     if (requestFinishedCount % 10)
 113         return;
 114
 115     double pctCached = (double(requestFinishedFromCacheCount) * 100.0/ double(requestFinishedCount));
 116     double pctPipelined = (double(requestFinishedPipelinedCount) * 100.0/ double(requestFinishedCount));
 117     double pctSecure = (double(requestFinishedSecureCount) * 100.0/ double(requestFinishedCount));
 118     double pctDownloadBuffer = (double(requestFinishedDownloadBufferCount) * 100.0/ double(requestFinishedCount));
 119
 120 #ifdef QT_DEBUG
 121     qDebug("STATS [%lli requests total] [%3.2f%% from cache] [%3.2f%% pipelined] [%3.2f%% SSL/TLS] [%3.2f%% Zerocopy]", requestFinishedCount, pctCached, pctPipelined, pctSecure, pctDownloadBuffer);
 122 #endif
 123 }
 124
 125 void NetworkAccessManager::loadSettings()
 126 {
 127     QSettings settings;
 128     settings.beginGroup(QLatin1String("proxy"));
 129     QNetworkProxy proxy;
 130     if (settings.value(QLatin1String("enabled"), false).toBool()) {
 131         if (settings.value(QLatin1String("type"), 0).toInt() == 0)
 132             proxy = QNetworkProxy::Socks5Proxy;
 133         else
 134             proxy = QNetworkProxy::HttpProxy;
 135         proxy.setHostName(settings.value(QLatin1String("hostName")).toString());
 136         proxy.setPort(settings.value(QLatin1String("port"), 1080).toInt());
 137         proxy.setUser(settings.value(QLatin1String("userName")).toString());
 138         proxy.setPassword(settings.value(QLatin1String("password")).toString());
 139     }
 140     setProxy(proxy);
 141 }
 142
 143 void NetworkAccessManager::authenticationRequired(QNetworkReply *reply, QAuthenticator *auth)
 144 {
 145     BrowserMainWindow *mainWindow = BrowserApplication::instance()->mainWindow();
 146
 147     QDialog dialog(mainWindow);
 148     dialog.setWindowFlags(Qt::Sheet);
 149
 150     Ui::PasswordDialog passwordDialog;
 151     passwordDialog.setupUi(&dialog);
 152
 153     passwordDialog.iconLabel->setText(QString());
 154     passwordDialog.iconLabel->setPixmap(mainWindow->style()->standardIcon(QStyle::SP_MessageBoxQuestion, 0, mainWindow).pixmap(32, 32));
 155
 156     QString introMessage = tr("<qt>Enter username and password for \"%1\" at %2</qt>");
 157     introMessage = introMessage.arg(Qt::escape(reply->url().toString())).arg(Qt::escape(reply->url().toString()));
 158     passwordDialog.introLabel->setText(introMessage);
 159     passwordDialog.introLabel->setWordWrap(true);
 160
 161     if (dialog.exec() == QDialog::Accepted) {
 162         auth->setUser(passwordDialog.userNameLineEdit->text());
 163         auth->setPassword(passwordDialog.passwordLineEdit->text());
 164     }
 165 }
 166
 167 void NetworkAccessManager::proxyAuthenticationRequired(const QNetworkProxy &proxy, QAuthenticator *auth)
 168 {
 169     BrowserMainWindow *mainWindow = BrowserApplication::instance()->mainWindow();
 170
 171     QDialog dialog(mainWindow);
 172     dialog.setWindowFlags(Qt::Sheet);
 173
 174     Ui::ProxyDialog proxyDialog;
 175     proxyDialog.setupUi(&dialog);
 176
 177     proxyDialog.iconLabel->setText(QString());
 178     proxyDialog.iconLabel->setPixmap(mainWindow->style()->standardIcon(QStyle::SP_MessageBoxQuestion, 0, mainWindow).pixmap(32, 32));
 179
 180     QString introMessage = tr("<qt>Connect to proxy \"%1\" using:</qt>");
 181     introMessage = introMessage.arg(Qt::escape(proxy.hostName()));
 182     proxyDialog.introLabel->setText(introMessage);
 183     proxyDialog.introLabel->setWordWrap(true);
 184
 185     if (dialog.exec() == QDialog::Accepted) {
 186         auth->setUser(proxyDialog.userNameLineEdit->text());
 187         auth->setPassword(proxyDialog.passwordLineEdit->text());
 188     }
 189 }
 190
 191 #ifndef QT_NO_OPENSSL
 192 void NetworkAccessManager::sslErrors(QNetworkReply *reply, const QList<QSslError> &error)
 193 {
 194     // check if SSL certificate has been trusted already
 195     QString replyHost = reply->url().host() + QString(":%1").arg(reply->url().port());
 196     if(! sslTrustedHostList.contains(replyHost)) {
 197         BrowserMainWindow *mainWindow = BrowserApplication::instance()->mainWindow();
 198
 199         QStringList errorStrings;
 200         for (int i = 0; i < error.count(); ++i)
 201             errorStrings += error.at(i).errorString();
 202         QString errors = errorStrings.join(QLatin1String("\n"));
 203         int ret = QMessageBox::warning(mainWindow, QCoreApplication::applicationName(),
 204                 tr("SSL Errors:\n\n%1\n\n%2\n\n"
 205                         "Do you want to ignore these errors for this host?").arg(reply->url().toString()).arg(errors),
 206                         QMessageBox::Yes | QMessageBox::No,
 207                         QMessageBox::No);
 208         if (ret == QMessageBox::Yes) {
 209             reply->ignoreSslErrors();
 210             sslTrustedHostList.append(replyHost);
 211         }
 212     }
 213 }
 214 #endif