EarlyHintsService.h

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/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */

/* vim: set sw=2 ts=8 et tw=80 : */

/* This Source Code Form is subject to the terms of the Mozilla Public

 * License, v. 2.0. If a copy of the MPL was not distributed with this

 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */

#ifndef mozilla_net_EarlyHintsService_h

#define mozilla_net_EarlyHintsService_h

#include "mozilla/dom/ipc/IdType.h"

#include "mozilla/Maybe.h"

#include "mozilla/RefPtr.h"

#include "mozilla/TimeStamp.h"

#include "nsStringFwd.h"

#include "nsTArray.h"

class nsIChannel;

class nsIURI;

class nsIInterfaceRequestor;

namespace mozilla::dom {

class CanonicalBrowsingContext;

namespace mozilla::net {

class EarlyHintConnectArgs;

class OngoingEarlyHints;

class EarlyHintsService {

 public:

  EarlyHintsService();

  ~EarlyHintsService();

  void EarlyHint(const nsACString& aLinkHeader, nsIURI* aBaseURI,

                 nsIChannel* aChannel, const nsACString& aReferrerPolicy,

                 const nsACString& aCSPHeader,

                 dom::CanonicalBrowsingContext* aLoadingBrowsingContext);

  void FinalResponse(uint32_t aResponseStatus);

  void Cancel(const nsACString& aReason);

  void RegisterLinksAndGetConnectArgs(

      dom::ContentParentId aCpId, nsTArray<EarlyHintConnectArgs>& aOutLinks);

  uint32_t LinkType() const { return mLinkType; }

 private:

  void CollectTelemetry(Maybe<uint32_t> aResponseStatus);

  void CollectLinkTypeTelemetry(const nsAString& aRel);

  Maybe<TimeStamp> mFirstEarlyHint;

  uint32_t mEarlyHintsCount{0};

  RefPtr<OngoingEarlyHints> mOngoingEarlyHints;

  uint32_t mLinkType = 0;

};

}  // namespace mozilla::net

#endif  // mozilla_net_EarlyHintsService_h