[tracking] Do the install-tracking ping with QNAM

src/modules/tracking/TrackingJobs.cpp

@@ -0,0 +1,85 @@
+/* === This file is part of Calamares - <http://github.com/calamares> ===
+ *
+ *   Copyright 2017, Adriaan de Groot <groot@kde..org>
+ *
+ *   Calamares is free software: you can redistribute it and/or modify
+ *   it under the terms of the GNU General Public License as published by
+ *   the Free Software Foundation, either version 3 of the License, or
+ *   (at your option) any later version.
+ *
+ *   Calamares is distributed in the hope that it will be useful,
+ *   but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ *   GNU General Public License for more details.
+ *
+ *   You should have received a copy of the GNU General Public License
+ *   along with Calamares. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include "TrackingJobs.h"
+
+#include "utils/Logger.h"
+
+#include <QNetworkAccessManager>
+#include <QNetworkReply>
+#include <QSemaphore>
+
+TrackingInstallJob::TrackingInstallJob( const QString& url )
+    : m_url( url )
+    , m_networkManager( new QNetworkAccessManager( this ) )
+    , m_semaphore( new QSemaphore( 1 ) )
+{
+}
+
+QString TrackingInstallJob::prettyName() const
+{
+    return tr( "Install-tracking" );
+}
+
+QString TrackingInstallJob::prettyDescription() const
+{
+    return tr( "Install-tracking" );
+}
+
+QString TrackingInstallJob::prettyStatusMessage() const
+{
+    return tr( "Sending install-tracking information." );
+}
+
+Calamares::JobResult TrackingInstallJob::exec()
+{
+    QNetworkRequest request;
+    request.setUrl( QUrl( m_url ) );
+    // Follows all redirects except unsafe ones (https to http).
+    request.setAttribute( QNetworkRequest::FollowRedirectsAttribute, true );
+    // Not everybody likes the default User Agent used by this class (looking at you,
+    // sourceforge.net), so let's set a more descriptive one.
+    request.setRawHeader( "User-Agent", "Mozilla/5.0 (compatible; Calamares)" );
+
+    connect( m_networkManager, &QNetworkAccessManager::finished,
+             this, &TrackingInstallJob::dataIsHere );
+
+    if ( !m_semaphore->tryAcquire( 1, 500 /* ms */ ) )
+    {
+        // Something's wrong ..
+        cDebug() << "WARNING: could not set up semaphore for install-tracking.";
+        return Calamares::JobResult::error( tr( "Internal error in install-tracking." ),
+                                            tr( "Could not get semaphore for install-tracking." ) );
+    }
+    m_networkManager->get( request );  // The semaphore is released when data is received
+    if ( !m_semaphore->tryAcquire( 1, 5000 /* ms */ ) )
+    {
+        cDebug() << "WARNING: install-tracking request timed out.";
+        return Calamares::JobResult::error( tr( "Internal error in install-tracking." ),
+                                            tr( "HTTP request timed out." ) );
+    }
+
+    return Calamares::JobResult::ok();
+}
+
+void TrackingInstallJob::dataIsHere( QNetworkReply* reply )
+{
+    if ( m_semaphore )
+        m_semaphore->release( 1 );
+    reply->deleteLater();
+}

src/modules/tracking/TrackingJobs.h

@@ -0,0 +1,50 @@
+/* === This file is part of Calamares - <http://github.com/calamares> ===
+ *
+ *   Copyright 2017, Adriaan de Groot <groot@kde..org>
+ *
+ *   Calamares is free software: you can redistribute it and/or modify
+ *   it under the terms of the GNU General Public License as published by
+ *   the Free Software Foundation, either version 3 of the License, or
+ *   (at your option) any later version.
+ *
+ *   Calamares is distributed in the hope that it will be useful,
+ *   but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ *   GNU General Public License for more details.
+ *
+ *   You should have received a copy of the GNU General Public License
+ *   along with Calamares. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#ifndef TRACKINGJOBS
+#define TRACKINGJOBS
+
+#include "Job.h"
+
+class QNetworkAccessManager;
+class QNetworkReply;
+class QSemaphore;
+
+class TrackingInstallJob : public Calamares::Job
+{
+    Q_OBJECT
+public:
+    TrackingInstallJob( const QString& url );
+    ~TrackingInstallJob();
+
+    QString prettyName() const override;
+    QString prettyDescription() const override;
+    QString prettyStatusMessage() const override;
+    Calamares::JobResult exec() override;
+
+public slots:
+    void dataIsHere( QNetworkReply* );
+
+private:
+    const QString m_url;
+
+    QNetworkAccessManager* m_networkManager;
+    QSemaphore* m_semaphore;
+};
+
+#endif

src/modules/tracking/TrackingViewStep.cpp

@@ -22,8 +22,9 @@
 #include "utils/CalamaresUtils.h"
 #include "utils/CalamaresUtilsSystem.h"
 
-#include "TrackingViewStep.h"
+#include "TrackingJobs.h"
 #include "TrackingPage.h"
+#include "TrackingViewStep.h"
 
 #include <QDesktopServices>
 #include <QVariantMap>