1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196
|
// Copyright 2019 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "chrome/browser/security_events/security_event_sync_bridge_impl.h"
#include <array>
#include <memory>
#include <set>
#include <utility>
#include <vector>
#include "base/check_op.h"
#include "base/containers/span.h"
#include "base/functional/bind.h"
#include "base/functional/callback_helpers.h"
#include "base/location.h"
#include "base/logging.h"
#include "base/numerics/byte_conversions.h"
#include "base/numerics/safe_conversions.h"
#include "base/strings/string_number_conversions.h"
#include "base/trace_event/trace_event.h"
#include "build/build_config.h"
#include "components/sync/model/entity_change.h"
#include "components/sync/model/metadata_batch.h"
#include "components/sync/model/mutable_data_batch.h"
#include "components/sync/protocol/security_event_specifics.pb.h"
namespace {
std::string GetStorageKeyFromSpecifics(
const sync_pb::SecurityEventSpecifics& specifics) {
// Force Big Endian, this means newly created keys are last in sort order,
// which allows leveldb to append new writes, which it is best at.
// TODO(markusheintz): Until we force |event_time_usec| to never conflict,
// this has the potential for errors.
std::array<uint8_t, 8> key;
base::span(key).copy_from(base::U64ToBigEndian(
base::checked_cast<uint64_t>(specifics.event_time_usec())));
return std::string(key.begin(), key.end());
}
std::unique_ptr<syncer::EntityData> ToEntityData(
sync_pb::SecurityEventSpecifics specifics) {
auto entity_data = std::make_unique<syncer::EntityData>();
entity_data->name = base::NumberToString(specifics.event_time_usec());
entity_data->specifics.mutable_security_event()->Swap(&specifics);
return entity_data;
}
} // namespace
SecurityEventSyncBridgeImpl::SecurityEventSyncBridgeImpl(
syncer::OnceDataTypeStoreFactory store_factory,
std::unique_ptr<syncer::DataTypeLocalChangeProcessor> change_processor)
: syncer::DataTypeSyncBridge(std::move(change_processor)) {
StoreWithCache::CreateAndLoad(
std::move(store_factory), syncer::SECURITY_EVENTS,
base::BindOnce(&SecurityEventSyncBridgeImpl::OnStoreLoaded,
weak_ptr_factory_.GetWeakPtr()));
}
SecurityEventSyncBridgeImpl::~SecurityEventSyncBridgeImpl() {
// TODO(crbug.com/362428820): Remove logging once investigation is complete.
if (store_) {
VLOG(1) << "SecurityEvents during destruction: "
<< store_->in_memory_data().size();
}
}
void SecurityEventSyncBridgeImpl::RecordSecurityEvent(
sync_pb::SecurityEventSpecifics specifics) {
if (!store_) {
return;
}
if (!change_processor()->IsTrackingMetadata()) {
return;
}
std::string storage_key = GetStorageKeyFromSpecifics(specifics);
std::unique_ptr<StoreWithCache::WriteBatch> write_batch =
store_->CreateWriteBatch();
write_batch->WriteData(storage_key, specifics);
change_processor()->Put(storage_key, ToEntityData(std::move(specifics)),
write_batch->GetMetadataChangeList());
store_->CommitWriteBatch(
std::move(write_batch),
base::BindOnce(&SecurityEventSyncBridgeImpl::OnStoreCommit,
weak_ptr_factory_.GetWeakPtr()));
}
base::WeakPtr<syncer::DataTypeControllerDelegate>
SecurityEventSyncBridgeImpl::GetControllerDelegate() {
return change_processor()->GetControllerDelegate();
}
std::unique_ptr<syncer::MetadataChangeList>
SecurityEventSyncBridgeImpl::CreateMetadataChangeList() {
return syncer::DataTypeStore::WriteBatch::CreateMetadataChangeList();
}
std::optional<syncer::ModelError>
SecurityEventSyncBridgeImpl::MergeFullSyncData(
std::unique_ptr<syncer::MetadataChangeList> metadata_change_list,
syncer::EntityChangeList entity_data) {
DCHECK(entity_data.empty());
DCHECK(change_processor()->IsTrackingMetadata());
DCHECK(!change_processor()->TrackedGaiaId().empty());
return ApplyIncrementalSyncChanges(std::move(metadata_change_list),
std::move(entity_data));
}
std::optional<syncer::ModelError>
SecurityEventSyncBridgeImpl::ApplyIncrementalSyncChanges(
std::unique_ptr<syncer::MetadataChangeList> metadata_change_list,
syncer::EntityChangeList entity_changes) {
std::unique_ptr<StoreWithCache::WriteBatch> write_batch =
store_->CreateWriteBatch();
for (const std::unique_ptr<syncer::EntityChange>& change : entity_changes) {
DCHECK_EQ(syncer::EntityChange::ACTION_DELETE, change->type());
write_batch->DeleteData(change->storage_key());
}
write_batch->TakeMetadataChangesFrom(std::move(metadata_change_list));
store_->CommitWriteBatch(
std::move(write_batch),
base::BindOnce(&SecurityEventSyncBridgeImpl::OnStoreCommit,
weak_ptr_factory_.GetWeakPtr()));
return {};
}
std::unique_ptr<syncer::DataBatch>
SecurityEventSyncBridgeImpl::GetDataForCommit(StorageKeyList storage_keys) {
auto batch = std::make_unique<syncer::MutableDataBatch>();
const std::map<std::string, sync_pb::SecurityEventSpecifics>& in_memory_data =
store_->in_memory_data();
for (const std::string& storage_key : storage_keys) {
auto it = in_memory_data.find(storage_key);
if (it != in_memory_data.end()) {
batch->Put(it->first, ToEntityData(it->second));
}
}
return batch;
}
std::unique_ptr<syncer::DataBatch>
SecurityEventSyncBridgeImpl::GetAllDataForDebugging() {
auto batch = std::make_unique<syncer::MutableDataBatch>();
for (const auto& [storage_key, specifics] : store_->in_memory_data()) {
batch->Put(storage_key, ToEntityData(specifics));
}
return batch;
}
std::string SecurityEventSyncBridgeImpl::GetClientTag(
const syncer::EntityData& entity_data) const {
return GetStorageKey(entity_data);
}
std::string SecurityEventSyncBridgeImpl::GetStorageKey(
const syncer::EntityData& entity_data) const {
return GetStorageKeyFromSpecifics(entity_data.specifics.security_event());
}
void SecurityEventSyncBridgeImpl::ApplyDisableSyncChanges(
std::unique_ptr<syncer::MetadataChangeList> delete_metadata_change_list) {
store_->DeleteAllDataAndMetadata(
base::BindOnce(&SecurityEventSyncBridgeImpl::OnStoreCommit,
weak_ptr_factory_.GetWeakPtr()));
}
void SecurityEventSyncBridgeImpl::OnStoreLoaded(
const std::optional<syncer::ModelError>& error,
std::unique_ptr<StoreWithCache> store,
std::unique_ptr<syncer::MetadataBatch> metadata_batch) {
TRACE_EVENT0("sync", "syncer::SecurityEventSyncBridgeImpl::OnStoreLoaded");
if (error) {
change_processor()->ReportError(*error);
return;
}
store_ = std::move(store);
change_processor()->ModelReadyToSync(std::move(metadata_batch));
}
void SecurityEventSyncBridgeImpl::OnStoreCommit(
const std::optional<syncer::ModelError>& error) {
if (error) {
change_processor()->ReportError(*error);
}
}
|