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// Copyright 2022 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef CONTENT_BROWSER_PRELOADING_PREFETCH_PREFETCH_NETWORK_CONTEXT_H_
#define CONTENT_BROWSER_PRELOADING_PREFETCH_PREFETCH_NETWORK_CONTEXT_H_
#include "base/memory/scoped_refptr.h"
#include "content/browser/preloading/prefetch/prefetch_type.h"
#include "content/common/content_export.h"
#include "content/public/browser/global_routing_id.h"
#include "mojo/public/cpp/bindings/pending_receiver.h"
#include "mojo/public/cpp/bindings/remote.h"
#include "net/base/isolation_info.h"
#include "services/network/public/cpp/shared_url_loader_factory.h"
#include "services/network/public/mojom/cookie_manager.mojom.h"
#include "services/network/public/mojom/network_context.mojom.h"
#include "services/network/public/mojom/url_loader_factory.mojom.h"
namespace content {
class BrowserContext;
class PrefetchService;
// An isolated network context used for prefetches. The purpose of using a
// separate network context is to set a custom proxy configuration, and separate
// any cookies.
class CONTENT_EXPORT PrefetchNetworkContext {
public:
PrefetchNetworkContext(
bool use_isolated_network_context,
const PrefetchType& prefetch_type,
const GlobalRenderFrameHostId& referring_render_frame_host_id,
const std::optional<url::Origin>& referring_origin);
~PrefetchNetworkContext();
PrefetchNetworkContext(const PrefetchNetworkContext&) = delete;
const PrefetchNetworkContext operator=(const PrefetchNetworkContext&) =
delete;
// Get a reference to |url_loader_factory_|. If it is null, then
// |network_context_| is bound and configured, and a new
// |SharedURLLoaderFactory| is created.
scoped_refptr<network::SharedURLLoaderFactory> GetURLLoaderFactory(
PrefetchService* service);
// Get a reference to |cookie_manager_|. If it is null, then it is bound to
// the cookie manager of |network_context_|.
network::mojom::CookieManager* GetCookieManager();
// Close any idle connections with |network_context_|.
void CloseIdleConnections();
private:
// Returns a URLLoaderFactory associated with the given |network_context|.
scoped_refptr<network::SharedURLLoaderFactory> CreateNewURLLoaderFactory(
BrowserContext* browser_context,
network::mojom::NetworkContext* network_context);
// Bind |network_context_| to a new network context and configure it to use
// the prefetch proxy. Also set up |url_loader_factory_| as a new URL loader
// factory for |network_context_|.
void CreateIsolatedURLLoaderFactory(PrefetchService* service);
// Whether an isolated network context or the default network context should
// be used.
const bool use_isolated_network_context_;
// Used to determine if the prefetch proxy should be used.
const PrefetchType prefetch_type_;
// The referring RenderFrameHost is used when considering to proxy
// |url_loader_factory_| by calling WillCreateURLLoaderFactory.
// This should be empty when the trigger is browser-initiated.
const GlobalRenderFrameHostId referring_render_frame_host_id_;
// The origin that initiates the prefetch request, used when considering to
// proxy |url_loader_factory_| by calling WillCreateURLLoaderFactory.
// For renderer-initiated prefetch, this is calculated by referring
// RenderFrameHost's LastCommittedOrigin.
const std::optional<url::Origin> referring_origin_;
// The network context and URL loader factory to use when making prefetches.
mojo::Remote<network::mojom::NetworkContext> network_context_;
scoped_refptr<network::SharedURLLoaderFactory> url_loader_factory_;
// The cookie manager for the isolated |network_context_|. This is used when
// copying cookies from the isolated prefetch network context to the default
// network context after a prefetch is committed.
mojo::Remote<network::mojom::CookieManager> cookie_manager_;
};
} // namespace content
#endif // CONTENT_BROWSER_PRELOADING_PREFETCH_PREFETCH_NETWORK_CONTEXT_H_
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