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// Copyright 2020 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_SERVICE_WORKER_SERVICE_WORKER_IDENTIFIABILITY_METRICS_H_
#define CONTENT_BROWSER_SERVICE_WORKER_SERVICE_WORKER_IDENTIFIABILITY_METRICS_H_
#include <stdint.h>
#include <map>
#include <set>
#include "content/browser/service_worker/service_worker_context_core_observer.h"
#include "content/browser/service_worker/service_worker_info.h"
#include "services/metrics/public/cpp/ukm_source_id.h"
#include "third_party/blink/public/mojom/service_worker/service_worker_client.mojom.h"
namespace content {
struct VersionIdentifiabilityInfo {
VersionIdentifiabilityInfo() = default;
VersionIdentifiabilityInfo(ukm::SourceId ukm_source_id, const GURL& origin)
: ukm_source_id(ukm_source_id), origin(origin) {}
ukm::SourceId ukm_source_id = ukm::kInvalidSourceId;
GURL origin;
};
// Used to emit a UKM event to associate each worker with each client that it
// has the potential to communicate with (whether or not they actually do). Only
// created when the identifiability study is active.
class ServiceWorkerIdentifiabilityMetrics
: public ServiceWorkerContextCoreObserver {
public:
ServiceWorkerIdentifiabilityMetrics();
~ServiceWorkerIdentifiabilityMetrics() override;
private:
// ServiceWorkerContextCoreObserver implements
void OnNewLiveVersion(const ServiceWorkerVersionInfo& version_info) override;
void OnLiveVersionDestroyed(int64_t version_id) override;
void OnClientIsExecutionReady(
ukm::SourceId client_source_id,
const GURL& url,
blink::mojom::ServiceWorkerClientType type) override;
void OnClientDestroyed(ukm::SourceId client_source_id,
const GURL& url,
blink::mojom::ServiceWorkerClientType type) override;
void EmitClientAddedEvent(ukm::SourceId version_ukm_source_id,
ukm::SourceId client_ukm_source_id);
// Stores information about ServiceWorkerVersions keyed by version_id.
std::map<int64_t, VersionIdentifiabilityInfo> version_map_;
// Stores the UKM source IDs of all clients that are execution ready. They are
// partitioned by the origin of the client's URL. A GURL, not urL::Origin, is
// used to avoid unnecessary conversions as GURL::GetOrigin() returns a GURL.
std::map<GURL, std::set<ukm::SourceId>> client_source_ids_by_origin_;
};
} // namespace content
#endif // CONTENT_BROWSER_SERVICE_WORKER_SERVICE_WORKER_IDENTIFIABILITY_METRICS_H_
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