Simple class to download files (sync/async)

libraries/shared/src/FileDownloader.cpp

@@ -0,0 +1,42 @@
+//
+//  FileDownloader.cpp
+//  hifi
+//
+//  Created by Clement Brisset on 3/14/14.
+//  Copyright (c) 2014 HighFidelity, Inc. All rights reserved.
+//
+//
+
+#include <QUrl>
+#include <QNetworkRequest>
+#include <QNetworkReply>
+#include <QEventLoop>
+
+#include "FileDownloader.h"
+
+FileDownloader::FileDownloader(const QUrl dataURL, QObject* parent) : QObject(parent) {
+    connect(&_networkAccessManager, SIGNAL(finished(QNetworkReply*)), this, SLOT(processReply(QNetworkReply*)));
+
+    QNetworkRequest request(dataURL);
+    _networkAccessManager.get(request);
+}
+
+void FileDownloader::processReply(QNetworkReply *reply) {
+    if (reply->error() != QNetworkReply::NoError) {
+        emit done(reply->error());
+        return;
+    }
+    
+    _downloadedData = reply->readAll();
+    reply->deleteLater();
+    
+    emit done(QNetworkReply::NoError);
+}
+
+QByteArray FileDownloader::download(const QUrl dataURL) {
+    QEventLoop loop;
+    FileDownloader downloader(dataURL);
+    connect(&downloader, SIGNAL(done()), &loop, SLOT(quit()));
+    loop.exec();
+    return downloader.getData();
+}

libraries/shared/src/FileDownloader.h

@@ -0,0 +1,35 @@
+//
+//  FileDownloader.h
+//  hifi
+//
+//  Created by Clement Brisset on 3/14/14.
+//  Copyright (c) 2014 HighFidelity, Inc. All rights reserved.
+//
+//
+
+#ifndef __hifi__FileDownloader__
+#define __hifi__FileDownloader__
+
+#include <QObject>
+#include <QNetworkAccessManager>
+
+class FileDownloader : public QObject {
+public:
+    FileDownloader(const QUrl dataURL, QObject* parent = NULL);
+    QByteArray getData() const { return _downloadedData; }
+    
+    static QByteArray download(const QUrl dataURL);
+    
+signals:
+    void done(QNetworkReply::NetworkError);
+    
+private slots:
+    void processReply(QNetworkReply* reply);
+    
+private:
+    QNetworkAccessManager _networkAccessManager;
+    QByteArray _downloadedData;
+};
+
+
+#endif /* defined(__hifi__FileDownloader__) */