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// Copyright 2022 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "components/sync_bookmarks/synced_bookmark_tracker_entity.h"
#include <utility>
#include "base/base64.h"
#include "base/check.h"
#include "base/hash/hash.h"
#include "base/hash/sha1.h"
#include "base/memory/ptr_util.h"
#include "base/metrics/histogram_macros.h"
#include "base/trace_event/memory_usage_estimator.h"
#include "components/bookmarks/browser/bookmark_node.h"
#include "components/sync/protocol/entity_data.h"
#include "components/sync/protocol/entity_metadata.pb.h"
#include "components/sync/protocol/entity_specifics.pb.h"
#include "components/sync/protocol/proto_memory_estimations.h"
#include "components/sync/protocol/unique_position.pb.h"
namespace sync_bookmarks {
namespace {
void HashSpecifics(const sync_pb::EntitySpecifics& specifics,
std::string* hash) {
DCHECK_GT(specifics.ByteSizeLong(), 0u);
*hash =
base::Base64Encode(base::SHA1HashString(specifics.SerializeAsString()));
}
} // namespace
SyncedBookmarkTrackerEntity::SyncedBookmarkTrackerEntity(
const bookmarks::BookmarkNode* bookmark_node,
sync_pb::EntityMetadata metadata)
: bookmark_node_(bookmark_node), metadata_(std::move(metadata)) {
if (bookmark_node) {
DCHECK(!metadata_.is_deleted());
} else {
DCHECK(metadata_.is_deleted());
}
}
SyncedBookmarkTrackerEntity::~SyncedBookmarkTrackerEntity() = default;
bool SyncedBookmarkTrackerEntity::IsUnsynced() const {
return metadata_.sequence_number() > metadata_.acked_sequence_number();
}
bool SyncedBookmarkTrackerEntity::MatchesData(
const syncer::EntityData& data) const {
if (metadata_.is_deleted() || data.is_deleted()) {
// In case of deletion, no need to check the specifics.
return metadata_.is_deleted() == data.is_deleted();
}
return MatchesSpecificsHash(data.specifics);
}
bool SyncedBookmarkTrackerEntity::MatchesSpecificsHash(
const sync_pb::EntitySpecifics& specifics) const {
DCHECK(!metadata_.is_deleted());
DCHECK_GT(specifics.ByteSizeLong(), 0u);
std::string hash;
HashSpecifics(specifics, &hash);
return hash == metadata_.specifics_hash();
}
bool SyncedBookmarkTrackerEntity::MatchesFaviconHash(
const std::string& favicon_png_bytes) const {
DCHECK(!metadata_.is_deleted());
return metadata_.bookmark_favicon_hash() ==
base::PersistentHash(favicon_png_bytes);
}
syncer::ClientTagHash SyncedBookmarkTrackerEntity::GetClientTagHash() const {
return syncer::ClientTagHash::FromHashed(metadata_.client_tag_hash());
}
size_t SyncedBookmarkTrackerEntity::EstimateMemoryUsage() const {
using base::trace_event::EstimateMemoryUsage;
size_t memory_usage = 0;
// Include the size of the pointer to the bookmark node.
memory_usage += sizeof(bookmark_node_);
memory_usage += EstimateMemoryUsage(metadata_);
return memory_usage;
}
} // namespace sync_bookmarks
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