fileDownloader.* -> filedownloader.*

1 files changed, 73 insertions, 0 deletions

diff --git a/src/filedownloader.cpp b/src/filedownloader.cpp
new file mode 100644
index 0000000..0af2544
--- /dev/null
+++ b/src/filedownloader.cpp
@@ -0,0 +1,73 @@
+/*
+ * filedownloader.cpp
+ *
+ *  Created on: Mar 7, 2014
+ *      Author: nils
+ */
+
+#include <QFileInfo>
+
+#include "filedownloader.h"
+
+// Maximum size of download
+#define MAXSIZE (200000)
+
+static QNetworkAccessManager m_WebCtrl;
+
+FileDownloader::FileDownloader(const QUrl& fileUrl, QObject *parent) :
+	QObject(parent), started(false), url(fileUrl) {
+}
+
+FileDownloader::~FileDownloader() {
+
+}
+
+bool FileDownloader::downloadFile() {
+	if (this->started)
+		return true;
+	QNetworkReply *reply = m_WebCtrl.get(QNetworkRequest(this->url));
+	if (reply == NULL)
+		return false;
+	this->started = true;
+	connect(reply, SIGNAL(finished()), SLOT(fileDownloaded()));
+	connect(reply, SIGNAL(downloadProgress(qint64, qint64)), SLOT(downloadProgress(qint64, qint64)));
+	return true;
+}
+
+/*
+ * Slots from networkreply
+ */
+
+void FileDownloader::downloadFailed(QNetworkReply::NetworkError) {
+	QNetworkReply *reply = (QNetworkReply*)this->sender();
+	killReply(reply);
+	emit downloaded(this->url, QByteArray());
+}
+
+void FileDownloader::fileDownloaded() {
+	QNetworkReply *reply = (QNetworkReply*)this->sender();
+	if (reply == NULL)
+		return;
+	QByteArray downloadedData(reply->readAll());
+	killReply(reply);
+	//emit a signal
+	emit downloaded(this->url, downloadedData);
+}
+
+void FileDownloader::downloadProgress(qint64 received, qint64 totalSize) {
+	QNetworkReply *reply = (QNetworkReply*)this->sender();
+	if (reply == NULL)
+		return;
+	if (received > MAXSIZE || totalSize > MAXSIZE) {
+		killReply(reply);
+		emit downloaded(this->url, QByteArray());
+	}
+}
+
+void FileDownloader::killReply(QNetworkReply *reply) {
+	if (reply == NULL)
+		return;
+	reply->blockSignals(true);
+	reply->abort();
+	reply->deleteLater();
+}