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/****************************************************************************
**
** Copyright (C) 2018 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.
**
** $QT_END_LICENSE$
**
****************************************************************************/
// Copyright 2013 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE.Chromium file.
#include "resource_dispatcher_host_delegate_qt.h"
#include "base/bind.h"
#include "base/guid.h"
#include "base/strings/stringprintf.h"
#include "base/task/post_task.h"
#include "content/public/browser/browser_task_traits.h"
#include "content/public/browser/browser_thread.h"
#include "content/public/browser/navigation_controller.h"
#include "content/public/browser/render_frame_host.h"
#include "content/public/browser/render_view_host.h"
#include "content/public/browser/resource_dispatcher_host.h"
#include "content/public/browser/resource_request_info.h"
#include "content/public/browser/stream_info.h"
#include "content/public/browser/web_contents.h"
#include "extensions/extension_system_qt.h"
#include "extensions/browser/info_map.h"
#include "extensions/common/constants.h"
#include "extensions/common/extension.h"
#include "extensions/common/manifest_handlers/mime_types_handler.h"
#include "net/base/escape.h"
#include "net/url_request/url_request.h"
#include "resource_context_qt.h"
#include "type_conversion.h"
namespace QtWebEngineCore {
void OnPdfStreamIntercepted(
const GURL& original_url,
std::string extension_id,
int frame_tree_node_id,
const content::ResourceRequestInfo::WebContentsGetter&
web_contents_getter) {
content::WebContents* web_contents = web_contents_getter.Run();
if (!web_contents)
return;
// The URL passes the original pdf resource url, that will be requested
// by the pdf viewer extension page.
content::NavigationController::LoadURLParams params(
GURL(base::StringPrintf("%s://%s/index.html?%s", extensions::kExtensionScheme,
extension_id.c_str(),
net::EscapeUrlEncodedData(original_url.spec(), false).c_str())));
params.frame_tree_node_id = frame_tree_node_id;
web_contents->GetController().LoadURLWithParams(params);
}
bool ResourceDispatcherHostDelegateQt::ShouldInterceptResourceAsStream(net::URLRequest *request,
const std::string &mime_type,
GURL *origin,
std::string *payload)
{
const content::ResourceRequestInfo* info =
content::ResourceRequestInfo::ForRequest(request);
int render_process_host_id = -1;
int render_frame_id = -1;
if (!content::ResourceRequestInfo::GetRenderFrameForRequest(request, &render_process_host_id, &render_frame_id)) {
return false;
}
ResourceContextQt *context = static_cast<ResourceContextQt *>(info->GetContext());
std::vector<std::string> whitelist = MimeTypesHandler::GetMIMETypeWhitelist();
extensions::ExtensionSystemQt *extensionSystem = context->GetExtensionSystem();
if (!extensionSystem)
return false;
const scoped_refptr<const extensions::InfoMap> extension_info_map(extensionSystem->info_map());
for (const std::string &extension_id : whitelist) {
const extensions::Extension *extension = extension_info_map->extensions().GetByID(extension_id);
if (!extension)
continue;
MimeTypesHandler* handler = MimeTypesHandler::GetHandler(extension);
if (!handler)
continue;
if (handler->CanHandleMIMEType(mime_type)) {
StreamTargetInfo target_info;
*origin = extensions::Extension::GetBaseURLFromExtensionId(extension_id);
target_info.extension_id = extension_id;
target_info.view_id = base::GenerateGUID();
*payload = target_info.view_id;
stream_target_info_[request] = target_info;
return true;
}
}
return false;
}
// Informs the delegate that a Stream was created. The Stream can be read from
// the blob URL of the Stream, but can only be read once.
void ResourceDispatcherHostDelegateQt::OnStreamCreated(net::URLRequest *request,
std::unique_ptr<content::StreamInfo> stream)
{
const content::ResourceRequestInfo *info = content::ResourceRequestInfo::ForRequest(request);
std::map<net::URLRequest *, StreamTargetInfo>::iterator ix = stream_target_info_.find(request);
CHECK(ix != stream_target_info_.end());
int render_frame_id = -1;
int render_process_id = -1;
if (!content::ResourceRequestInfo::GetRenderFrameForRequest(request, &render_process_id, &render_frame_id)) {
stream_target_info_.erase(request);
request->Cancel();
return;
}
base::PostTaskWithTraits(
FROM_HERE, {content::BrowserThread::UI},
base::BindOnce(&OnPdfStreamIntercepted,
request->url(), ix->second.extension_id,
info->GetFrameTreeNodeId(), info->GetWebContentsGetterForRequest()
)
);
stream_target_info_.erase(request);
}
} // namespace QtWebEngineCore
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