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// Copyright 2024 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_LOADER_KEEP_ALIVE_ATTRIBUTION_REQUEST_HELPER_H_
#define CONTENT_BROWSER_LOADER_KEEP_ALIVE_ATTRIBUTION_REQUEST_HELPER_H_
#include <stdint.h>
#include <memory>
#include <optional>
#include <string>
#include "base/memory/scoped_refptr.h"
#include "base/memory/weak_ptr.h"
#include "content/browser/attribution_reporting/attribution_background_registrations_id.h"
#include "content/browser/attribution_reporting/attribution_suitable_context.h"
#include "content/common/content_export.h"
#include "content/public/browser/weak_document_ptr.h"
#include "services/network/public/mojom/attribution.mojom-forward.h"
#include "url/gurl.h"
namespace attribution_reporting {
enum class AttributionSrcRequestStatus;
} // namespace attribution_reporting
namespace net {
class HttpResponseHeaders;
} // namespace net
namespace content {
class AttributionDataHostManager;
// Handles Attribution Reporting API
// (https://github.com/WICG/attribution-reporting-api) background source or
// trigger registrations. It is meant to be optionally hooked to a
// `KeepAliveURLLoader` instance. This enables registrations to be successfully
// processed even when the renderer which initiated the request is no longer
// active.
//
// A helper instance can handle a single request chain.
class CONTENT_EXPORT KeepAliveAttributionRequestHelper {
public:
// Creates a `KeepAliveAttributionRequestHelper` instance when the request is
// eligible for attribution.
static std::unique_ptr<KeepAliveAttributionRequestHelper> CreateIfNeeded(
network::mojom::AttributionReportingEligibility,
const GURL& request_url,
const std::optional<base::UnguessableToken>& attribution_src_token,
const std::optional<std::string>& devtools_request_id,
const std::optional<AttributionSuitableContext>&,
WeakDocumentPtr weak_document_ptr = WeakDocumentPtr());
~KeepAliveAttributionRequestHelper();
// non-copyable and non-movable
KeepAliveAttributionRequestHelper(const KeepAliveAttributionRequestHelper&) =
delete;
KeepAliveAttributionRequestHelper& operator=(
const KeepAliveAttributionRequestHelper&) = delete;
void OnReceiveRedirect(scoped_refptr<net::HttpResponseHeaders> headers,
const GURL& redirect_url);
void OnReceiveResponse(scoped_refptr<net::HttpResponseHeaders> headers);
void OnError();
private:
friend class KeepAliveAttributionRequestHelperTestPeer;
KeepAliveAttributionRequestHelper(BackgroundRegistrationsId,
AttributionDataHostManager*,
const GURL& reporting_url,
bool is_navigation_tied,
WeakDocumentPtr);
void RecordAttributionSrcRequestStatus(
attribution_reporting::AttributionSrcRequestStatus);
void OnComplete();
BackgroundRegistrationsId id_;
base::WeakPtr<AttributionDataHostManager> attribution_data_host_manager_;
// Reporting url of the ongoing request, it is updated on redirection. The url
// might be suitable or not, if it is not, when receiving a response, it will
// be ignored.
GURL reporting_url_;
// Whether the keep alive request is tied with a navigation.
bool is_navigation_tied_ = false;
// Whether the keep alive request has been ever redirected, updated at the
// first redirect if there's a chain of multiple redirects.
bool redirected_ = false;
// Points to the document that initiates this request.
// It may become null at any moment whenever the RenderFrameHost it points to
// is deleted or navigates to a different document. See its classdoc for more
// details.
WeakDocumentPtr weak_document_ptr_;
};
} // namespace content
#endif // CONTENT_BROWSER_LOADER_KEEP_ALIVE_ATTRIBUTION_REQUEST_HELPER_H_
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