From 012df52a13081e3f106021b14ab9796a371fbbe1 Mon Sep 17 00:00:00 2001 From: Szabolcs David Date: Wed, 17 Feb 2021 20:31:15 +0100 Subject: Implement PluginServiceFilterQt Let Chromium know about the status of plugin availability from WebEngineSettings. This way it can decide whether the response is a download and it has more benefits: - It doesn't have to start a new load request to download a PDF file, it just treats the original response accordingly. - Fixes websites which are protected from cross-domain requests (e.g. by checking the Referer header) and/or redirecting requests for PDFs. Calling DownloadManager "manually" and not passing the original request headers did not work when the server relied on them. Task-number: QTBUG-78114 Change-Id: I8cfa90c211418001c60c4b2f0f8818ee453101fc Reviewed-by: Allan Sandfeld Jensen --- src/core/extensions/plugin_service_filter_qt.cpp | 99 ++++++++++++++++++++++++ 1 file changed, 99 insertions(+) create mode 100644 src/core/extensions/plugin_service_filter_qt.cpp (limited to 'src/core/extensions/plugin_service_filter_qt.cpp') diff --git a/src/core/extensions/plugin_service_filter_qt.cpp b/src/core/extensions/plugin_service_filter_qt.cpp new file mode 100644 index 000000000..b29dbbeab --- /dev/null +++ b/src/core/extensions/plugin_service_filter_qt.cpp @@ -0,0 +1,99 @@ +/**************************************************************************** +** +** Copyright (C) 2021 The Qt Company Ltd. +** Contact: https://www.qt.io/licensing/ +** +** This file is part of the QtWebEngine module of the Qt Toolkit. +** +** $QT_BEGIN_LICENSE:LGPL$ +** Commercial License Usage +** Licensees holding valid commercial Qt licenses may use this file in +** accordance with the commercial license agreement provided with the +** Software or, alternatively, in accordance with the terms contained in +** a written agreement between you and The Qt Company. For licensing terms +** and conditions see https://www.qt.io/terms-conditions. For further +** information use the contact form at https://www.qt.io/contact-us. +** +** GNU Lesser General Public License Usage +** Alternatively, this file may be used under the terms of the GNU Lesser +** General Public License version 3 as published by the Free Software +** Foundation and appearing in the file LICENSE.LGPL3 included in the +** packaging of this file. Please review the following information to +** ensure the GNU Lesser General Public License version 3 requirements +** will be met: https://www.gnu.org/licenses/lgpl-3.0.html. +** +** GNU General Public License Usage +** Alternatively, this file may be used under the terms of the GNU +** General Public License version 2.0 or (at your option) the GNU General +** Public license version 3 or any later version approved by the KDE Free +** Qt Foundation. The licenses are as published by the Free Software +** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3 +** included in the packaging of this file. Please review the following +** information to ensure the GNU General Public License requirements will +** be met: https://www.gnu.org/licenses/gpl-2.0.html and +** https://www.gnu.org/licenses/gpl-3.0.html. +** +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#include "extensions/plugin_service_filter_qt.h" + +#include "content/public/browser/render_frame_host.h" +#include "content/public/browser/web_contents.h" + +#include "web_contents_delegate_qt.h" + +using namespace QtWebEngineCore; + +namespace extensions { + +// static +PluginServiceFilterQt *PluginServiceFilterQt::GetInstance() { + return base::Singleton::get(); +} + +bool PluginServiceFilterQt::IsPluginAvailable(int render_process_id, + int render_frame_id, + const GURL &url, + const url::Origin &main_frame_origin, + content::WebPluginInfo *plugin) +{ + content::RenderFrameHost *frame_host = content::RenderFrameHost::FromID(render_process_id, render_frame_id); + content::WebContents *web_contents = content::WebContents::FromRenderFrameHost(frame_host); + if (!web_contents) { + // Availability checked somewhere before/during WebContents initialization. Let it load and enable + // all the plugins at this phase. This information will be queried again when receiving the response + // for the requested content. Postponing our decision and enabling/blocking there makes WebEngineSettings + // modifiable in runtime without reconstructing WebContents. + return true; + } + + if (web_contents->IsInnerWebContentsForGuest()) + web_contents = web_contents->GetOuterWebContents(); + + if (auto *delegate = static_cast(web_contents->GetDelegate())) { + const WebEngineSettings *settings = delegate->webEngineSettings(); + if (!settings->testAttribute(WebEngineSettings::PdfViewerEnabled) + || !settings->testAttribute(WebEngineSettings::PluginsEnabled)) + return false; + } + + return true; +} + +bool PluginServiceFilterQt::CanLoadPlugin(int render_process_id, + const base::FilePath &path) +{ + return true; +} + +PluginServiceFilterQt::PluginServiceFilterQt() +{ +} + +PluginServiceFilterQt::~PluginServiceFilterQt() +{ +} + +} // namespace extensions -- cgit v1.2.3