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// Copyright 2017 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "content/browser/background_fetch/storage/cleanup_task.h"
#include <memory>
#include "base/containers/flat_set.h"
#include "base/functional/bind.h"
#include "content/browser/background_fetch/background_fetch.pb.h"
#include "content/browser/background_fetch/background_fetch_data_manager.h"
#include "content/browser/background_fetch/storage/database_helpers.h"
#include "content/browser/background_fetch/storage/delete_registration_task.h"
#include "content/browser/service_worker/service_worker_context_wrapper.h"
#include "third_party/blink/public/common/storage_key/storage_key.h"
#include "url/origin.h"
namespace content {
namespace background_fetch {
namespace {
void EmptyErrorHandler(blink::mojom::BackgroundFetchError) {}
} // namespace
CleanupTask::CleanupTask(DatabaseTaskHost* host) : DatabaseTask(host) {}
CleanupTask::~CleanupTask() = default;
void CleanupTask::Start() {
service_worker_context()->GetUserDataForAllRegistrationsByKeyPrefix(
kRegistrationKeyPrefix, base::BindOnce(&CleanupTask::DidGetRegistrations,
weak_factory_.GetWeakPtr()));
}
void CleanupTask::DidGetRegistrations(
const std::vector<std::pair<int64_t, std::string>>& registration_data,
blink::ServiceWorkerStatusCode status) {
if (ToDatabaseStatus(status) != DatabaseStatus::kOk ||
registration_data.empty()) {
FinishWithError(blink::mojom::BackgroundFetchError::STORAGE_ERROR);
return;
}
service_worker_context()->GetUserDataForAllRegistrationsByKeyPrefix(
kActiveRegistrationUniqueIdKeyPrefix,
base::BindOnce(&CleanupTask::DidGetActiveUniqueIds,
weak_factory_.GetWeakPtr(), registration_data));
}
void CleanupTask::DidGetActiveUniqueIds(
const std::vector<std::pair<int64_t, std::string>>& registration_data,
const std::vector<std::pair<int64_t, std::string>>& active_unique_id_data,
blink::ServiceWorkerStatusCode status) {
switch (ToDatabaseStatus(status)) {
case DatabaseStatus::kOk:
case DatabaseStatus::kNotFound:
break;
case DatabaseStatus::kFailed:
SetStorageErrorAndFinish(
BackgroundFetchStorageError::kServiceWorkerStorageError);
return;
}
auto active_unique_ids = base::MakeFlatSet<std::string>(
active_unique_id_data, {}, &std::pair<int64_t, std::string>::second);
for (const auto& entry : registration_data) {
int64_t service_worker_registration_id = entry.first;
proto::BackgroundFetchMetadata metadata_proto;
if (metadata_proto.ParseFromString(entry.second)) {
if (metadata_proto.registration().has_unique_id()) {
const std::string& unique_id =
metadata_proto.registration().unique_id();
if (!active_unique_ids.count(unique_id) &&
!ref_counted_unique_ids().count(unique_id)) {
// This |unique_id| can be safely cleaned up. Re-use
// DeleteRegistrationTask for the actual deletion logic.
AddDatabaseTask(std::make_unique<DeleteRegistrationTask>(
data_manager(), service_worker_registration_id,
GetMetadataStorageKey(metadata_proto), unique_id,
base::BindOnce(&EmptyErrorHandler)));
}
}
}
}
FinishWithError(blink::mojom::BackgroundFetchError::NONE);
return;
}
void CleanupTask::FinishWithError(blink::mojom::BackgroundFetchError error) {
Finished(); // Destroys |this|.
}
} // namespace background_fetch
} // namespace content
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