From fc7ec7a877ce088d0ed9879af5791b3c3e3ee241 Mon Sep 17 00:00:00 2001
From: Simon Rettberg
Date: Fri, 7 Jul 2017 16:15:55 +0200
Subject: Block downloads with user feedback

---
 src/webview.cpp | 35 +++++++++++++++++++++++++++++++++++
 1 file changed, 35 insertions(+)

(limited to 'src/webview.cpp')

diff --git a/src/webview.cpp b/src/webview.cpp
index aa9c650..29afb19 100644
--- a/src/webview.cpp
+++ b/src/webview.cpp
@@ -1,5 +1,20 @@
 #include "webview.h"
 #include <QWebFrame>
+#include <QNetworkReply>
+#include <QMessageBox>
+#include <QTimer>
+
+WebView::WebView(QWidget* parent)
+	: QWebView(parent),
+	  _timer(new QTimer(this)),
+	  _abortedDownload(false) {
+	_timer->setSingleShot(true);
+	connect(page(), SIGNAL(windowCloseRequested()), this, SLOT(windowCloseRequested()));
+	page()->setForwardUnsupportedContent(true);
+	connect(page(), SIGNAL(unsupportedContent(QNetworkReply*)),this,SLOT(unsupportedContent(QNetworkReply*)));
+	connect(page(), SIGNAL(downloadRequested(QNetworkRequest)),this,SLOT(downloadRequest(QNetworkRequest)));
+	connect(_timer, SIGNAL(timeout()), this, SLOT(downloadDeniedMessage()));
+}
 
 void WebView::windowCloseRequested()
 {
@@ -16,3 +31,23 @@ QWebView* WebView::createWindow(QWebPage::WebWindowType)
 	_urls.push(this->url());
 	return this;
 }
+
+void WebView::unsupportedContent(QNetworkReply* rep)
+{
+	_abortedDownload = true;
+	rep->abort();
+	rep->deleteLater();
+	_timer->start(1);
+}
+
+void WebView::downloadRequest(QNetworkRequest)
+{
+	_timer->start(1);
+}
+
+void WebView::downloadDeniedMessage()
+{
+	QMessageBox::warning(this->parentWidget(), QString::fromUtf8("Denied"),
+			QString::fromUtf8("The requested action triggered a download, which is not allowed.\n\n"
+					"Diese Aktion löst einen Download aus, was nicht erlaubt ist."));
+}
-- 
cgit v1.2.3-55-g7522