cef/libcef/browser/net_service/url_loader_factory_getter.cc

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// Copyright (c) 2019 The Chromium Embedded Framework Authors. Portions
// Copyright (c) 2018 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 file.
#include "libcef/browser/net_service/url_loader_factory_getter.h"
#include "libcef/browser/thread_util.h"
#include "libcef/common/app_manager.h"
#include "base/task/single_thread_task_runner.h"
#include "content/browser/devtools/devtools_instrumentation.h"
#include "content/browser/renderer_host/render_frame_host_impl.h"
#include "content/public/browser/browser_context.h"
#include "content/public/browser/storage_partition.h"
#include "content/public/common/content_client.h"
#include "services/network/public/cpp/shared_url_loader_factory.h"
#include "services/network/public/cpp/wrapper_shared_url_loader_factory.h"
namespace net_service {
// Based on CreatePendingSharedURLLoaderFactory from
// content/browser/download/download_manager_impl.cc.
// static
scoped_refptr<URLLoaderFactoryGetter> URLLoaderFactoryGetter::Create(
content::RenderFrameHost* render_frame_host,
content::BrowserContext* browser_context) {
CEF_REQUIRE_UIT();
DCHECK(browser_context);
// Call this early because newly created BrowserContexts may need to
// initialize additional state, and that should be done on the UI thread
// instead of potentially racing with the WillCreateURLLoaderFactory
// implementation.
auto loader_factory = browser_context->GetDefaultStoragePartition()
->GetURLLoaderFactoryForBrowserProcess();
mojo::PendingRemote<network::mojom::URLLoaderFactory> proxy_factory_remote;
mojo::PendingReceiver<network::mojom::URLLoaderFactory>
proxy_factory_receiver;
// Create an intermediate pipe that can be used to proxy the request's
// URLLoaderFactory.
mojo::PendingRemote<network::mojom::URLLoaderFactory>
maybe_proxy_factory_remote;
mojo::PendingReceiver<network::mojom::URLLoaderFactory>
maybe_proxy_factory_receiver =
maybe_proxy_factory_remote.InitWithNewPipeAndPassReceiver();
bool should_proxy = false;
int render_process_id = -1;
if (render_frame_host) {
render_process_id = render_frame_host->GetProcess()->GetID();
// Allow DevTools to potentially inject itself into the proxy pipe.
should_proxy =
content::devtools_instrumentation::WillCreateURLLoaderFactory(
static_cast<content::RenderFrameHostImpl*>(render_frame_host),
false /* is_navigation */, false /* is_download */,
&maybe_proxy_factory_receiver, nullptr /* factory_override */);
}
auto browser_client = CefAppManager::Get()->GetContentClient()->browser();
// Allow the Content embedder to inject itself if it wants to.
should_proxy |= browser_client->WillCreateURLLoaderFactory(
browser_context, render_frame_host, render_process_id,
content::ContentBrowserClient::URLLoaderFactoryType::kDocumentSubResource,
url::Origin(), absl::nullopt /* navigation_id */, ukm::SourceIdObj(),
&maybe_proxy_factory_receiver, nullptr /* header_client */,
nullptr /* bypass_redirect_checks */, nullptr /* disable_secure_dns */,
nullptr /* factory_override */,
nullptr /* navigation_response_task_runner */);
// If anyone above indicated that they care about proxying, pass the
// intermediate pipe along to the URLLoaderFactoryGetter.
if (should_proxy) {
proxy_factory_remote = std::move(maybe_proxy_factory_remote);
proxy_factory_receiver = std::move(maybe_proxy_factory_receiver);
}
return base::WrapRefCounted(new URLLoaderFactoryGetter(
loader_factory->Clone(), std::move(proxy_factory_remote),
std::move(proxy_factory_receiver)));
}
// Based on CreateFactory from
// content/browser/download/network_download_pending_url_loader_factory.cc.
scoped_refptr<network::SharedURLLoaderFactory>
URLLoaderFactoryGetter::GetURLLoaderFactory() {
// On first call we associate with the current thread.
if (!task_runner_) {
task_runner_ = base::SingleThreadTaskRunner::GetCurrentDefault();
} else {
DCHECK(task_runner_->RunsTasksInCurrentSequence());
}
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if (lazy_factory_) {
return lazy_factory_;
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}
// Bind on the current thread.
auto loader_factory =
network::SharedURLLoaderFactory::Create(std::move(loader_factory_info_));
if (proxy_factory_receiver_.is_valid()) {
loader_factory->Clone(std::move(proxy_factory_receiver_));
lazy_factory_ =
base::MakeRefCounted<network::WrapperSharedURLLoaderFactory>(
std::move(proxy_factory_remote_));
} else {
lazy_factory_ = loader_factory;
}
return lazy_factory_;
}
URLLoaderFactoryGetter::URLLoaderFactoryGetter(
std::unique_ptr<network::PendingSharedURLLoaderFactory> loader_factory_info,
mojo::PendingRemote<network::mojom::URLLoaderFactory> proxy_factory_remote,
mojo::PendingReceiver<network::mojom::URLLoaderFactory>
proxy_factory_receiver)
: loader_factory_info_(std::move(loader_factory_info)),
proxy_factory_remote_(std::move(proxy_factory_remote)),
proxy_factory_receiver_(std::move(proxy_factory_receiver)) {}
URLLoaderFactoryGetter::~URLLoaderFactoryGetter() = default;
void URLLoaderFactoryGetter::DeleteOnCorrectThread() const {
if (task_runner_ && !task_runner_->RunsTasksInCurrentSequence()) {
task_runner_->DeleteSoon(FROM_HERE, this);
return;
}
delete this;
}
} // namespace net_service