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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 COMPONENTS_CLIENT_HINTS_BROWSER_IN_MEMORY_CLIENT_HINTS_CONTROLLER_DELEGATE_H_
#define COMPONENTS_CLIENT_HINTS_BROWSER_IN_MEMORY_CLIENT_HINTS_CONTROLLER_DELEGATE_H_
#include <map>
#include <vector>
#include "base/memory/raw_ptr.h"
#include "base/sequence_checker.h"
#include "content/public/browser/client_hints_controller_delegate.h"
#include "third_party/blink/public/common/user_agent/user_agent_metadata.h"
namespace blink {
class EnabledClientHints;
}
namespace network {
class NetworkQualityTracker;
}
namespace url {
class Origin;
}
namespace client_hints {
// In-memory manager of Accept-CH Cache used in Client Hints infrastructure.
// See https://wicg.github.io/client-hints-infrastructure/.
//
// This cache is not persisted and has the same lifetime as the delegate.
// Differs from client_hints::ClientHints by not relying on ContentSettings to
// store Accept-CH Cache.
class InMemoryClientHintsControllerDelegate final
: public content::ClientHintsControllerDelegate {
public:
InMemoryClientHintsControllerDelegate(
network::NetworkQualityTracker* network_quality_tracker,
base::RepeatingCallback<bool(const GURL&)> is_javascript_allowed_callback,
blink::UserAgentMetadata user_agent_metadata);
~InMemoryClientHintsControllerDelegate() override;
InMemoryClientHintsControllerDelegate(
InMemoryClientHintsControllerDelegate&) = delete;
InMemoryClientHintsControllerDelegate& operator=(
InMemoryClientHintsControllerDelegate&) = delete;
// content::ClientHintsControllerDelegate implementation:
void PersistClientHints(const url::Origin& primary_origin,
content::RenderFrameHost* parent_rfh,
const std::vector<network::mojom::WebClientHintsType>&
client_hints) override;
void GetAllowedClientHintsFromSource(
const url::Origin& origin,
blink::EnabledClientHints* client_hints) override;
void SetAdditionalClientHints(
const std::vector<network::mojom::WebClientHintsType>&) override;
void ClearAdditionalClientHints() override;
network::NetworkQualityTracker* GetNetworkQualityTracker() override;
bool IsJavaScriptAllowed(const GURL& url,
content::RenderFrameHost* parent_rfh) override;
blink::UserAgentMetadata GetUserAgentMetadata() override;
void SetMostRecentMainFrameViewportSize(
const gfx::Size& viewport_size) override;
gfx::Size GetMostRecentMainFrameViewportSize() override;
private:
SEQUENCE_CHECKER(sequence_checker_);
// Stores enabled Client Hint types for an origin.
std::map<url::Origin, blink::EnabledClientHints> accept_ch_cache_
GUARDED_BY_CONTEXT(sequence_checker_);
// Additional Client Hint types for Client Hints Reliability. If additional
// hints are set, they would be included by subsequent calls to
// GetAllowedClientHintsFromSource.
std::vector<network::mojom::WebClientHintsType> additional_hints_
GUARDED_BY_CONTEXT(sequence_checker_);
// Tracker for networking-related hints. Must outlive this object.
raw_ptr<network::NetworkQualityTracker> network_quality_tracker_;
// Callback to determine whether JavaScript is enabled for an URL.
base::RepeatingCallback<bool(const GURL&)> is_javascript_allowed_callback_;
const blink::UserAgentMetadata user_agent_metadata_;
// This stores the viewport size of the most recent visible main frame tree
// node. This value is only used when the viewport size cannot be directly
// queried such as for prefetch requests and for tab restores.
gfx::Size viewport_size_;
};
} // namespace client_hints
#endif // COMPONENTS_CLIENT_HINTS_BROWSER_IN_MEMORY_CLIENT_HINTS_CONTROLLER_DELEGATE_H_
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