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// Copyright 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.
#ifndef CHROME_BROWSER_SIGNIN_CHROME_SIGNIN_PROXYING_URL_LOADER_FACTORY_H_
#define CHROME_BROWSER_SIGNIN_CHROME_SIGNIN_PROXYING_URL_LOADER_FACTORY_H_
#include "base/callback.h"
#include "base/containers/unique_ptr_adapters.h"
#include "base/memory/ref_counted_delete_on_sequence.h"
#include "content/public/browser/web_contents.h"
#include "mojo/public/cpp/bindings/pending_receiver.h"
#include "mojo/public/cpp/bindings/pending_remote.h"
#include "mojo/public/cpp/bindings/receiver_set.h"
#include "mojo/public/cpp/bindings/remote.h"
#include "services/network/public/mojom/url_loader_factory.mojom.h"
#include <memory>
#include <set>
namespace content {
class RenderFrameHost;
}
namespace signin {
class HeaderModificationDelegate;
// This class is used to modify sub-resource requests made by the renderer
// that is displaying the GAIA signin realm, to the GAIA signin realm. When
// such a request is made a proxy is inserted between the renderer and the
// Network Service to modify request and response headers.
class ProxyingURLLoaderFactory : public network::mojom::URLLoaderFactory {
public:
using DisconnectCallback =
base::OnceCallback<void(ProxyingURLLoaderFactory*)>;
// Constructor public for testing purposes. New instances should be created
// by calling MaybeProxyRequest().
ProxyingURLLoaderFactory(
std::unique_ptr<HeaderModificationDelegate> delegate,
content::WebContents::Getter web_contents_getter,
mojo::PendingReceiver<network::mojom::URLLoaderFactory> receiver,
mojo::PendingRemote<network::mojom::URLLoaderFactory> target_factory,
DisconnectCallback on_disconnect);
ProxyingURLLoaderFactory(const ProxyingURLLoaderFactory&) = delete;
ProxyingURLLoaderFactory& operator=(const ProxyingURLLoaderFactory&) = delete;
~ProxyingURLLoaderFactory() override;
// Called when a renderer needs a URLLoaderFactory to give this module the
// opportunity to install a proxy. This is only done when
// https://accounts.google.com is loaded in non-incognito mode. Returns true
// when |factory_request| has been proxied.
static bool MaybeProxyRequest(
content::RenderFrameHost* render_frame_host,
bool is_navigation,
const url::Origin& request_initiator,
mojo::PendingReceiver<network::mojom::URLLoaderFactory>*
factory_receiver);
// network::mojom::URLLoaderFactory:
void CreateLoaderAndStart(
mojo::PendingReceiver<network::mojom::URLLoader> loader_receiver,
int32_t request_id,
uint32_t options,
const network::ResourceRequest& request,
mojo::PendingRemote<network::mojom::URLLoaderClient> client,
const net::MutableNetworkTrafficAnnotationTag& traffic_annotation)
override;
void Clone(mojo::PendingReceiver<network::mojom::URLLoaderFactory>
loader_receiver) override;
private:
friend class base::DeleteHelper<ProxyingURLLoaderFactory>;
friend class base::RefCountedDeleteOnSequence<ProxyingURLLoaderFactory>;
class InProgressRequest;
class ProxyRequestAdapter;
class ProxyResponseAdapter;
void OnTargetFactoryError();
void OnProxyBindingError();
void RemoveRequest(InProgressRequest* request);
void MaybeDestroySelf();
std::unique_ptr<HeaderModificationDelegate> delegate_;
content::WebContents::Getter web_contents_getter_;
mojo::ReceiverSet<network::mojom::URLLoaderFactory> proxy_receivers_;
std::set<std::unique_ptr<InProgressRequest>, base::UniquePtrComparator>
requests_;
mojo::Remote<network::mojom::URLLoaderFactory> target_factory_;
DisconnectCallback on_disconnect_;
};
} // namespace signin
#endif // CHROME_BROWSER_SIGNIN_CHROME_SIGNIN_PROXYING_URL_LOADER_FACTORY_H_
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