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// Copyright 2014 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/engine/loopback_server/persistent_bookmark_entity.h"
#include <memory>
#include "base/logging.h"
#include "base/uuid.h"
#include "components/sync/base/client_tag_hash.h"
#include "components/sync/protocol/entity_specifics.pb.h"
#include "components/sync/protocol/loopback_server.pb.h"
#include "components/sync/protocol/sync_entity.pb.h"
#include "components/sync/protocol/unique_position.pb.h"
using std::string;
namespace syncer {
namespace {
// Returns true if and only if `client_entity` is a bookmark.
bool IsBookmark(const sync_pb::SyncEntity& client_entity) {
return syncer::GetDataTypeFromSpecifics(client_entity.specifics()) ==
syncer::BOOKMARKS;
}
} // namespace
PersistentBookmarkEntity::~PersistentBookmarkEntity() = default;
// static
std::unique_ptr<LoopbackServerEntity> PersistentBookmarkEntity::CreateNew(
const sync_pb::SyncEntity& client_entity,
const string& parent_id,
const string& originator_cache_guid) {
if (!IsBookmark(client_entity)) {
DLOG(WARNING) << "The given entity must be a bookmark.";
return nullptr;
}
const std::string originator_client_item_id = client_entity.id_string();
if (!base::Uuid::ParseLowercase(originator_client_item_id).is_valid()) {
DLOG(WARNING) << "Invalid originator client item ID: "
<< originator_client_item_id;
return nullptr;
}
const string id = LoopbackServerEntity::CreateId(syncer::BOOKMARKS,
originator_client_item_id);
return std::make_unique<PersistentBookmarkEntity>(
id, 0, client_entity.name(), originator_cache_guid,
originator_client_item_id, client_entity.client_tag_hash(),
client_entity.unique_position(), client_entity.specifics(),
client_entity.folder(), parent_id, client_entity.ctime(),
client_entity.mtime());
}
// static
std::unique_ptr<LoopbackServerEntity>
PersistentBookmarkEntity::CreateUpdatedVersion(
const sync_pb::SyncEntity& client_entity,
const LoopbackServerEntity& current_server_entity,
const string& parent_id,
const std::string& updating_client_cache_guid) {
if (client_entity.version() == 0) {
DLOG(WARNING) << "Existing entities must not have a version = 0.";
return nullptr;
}
if (!IsBookmark(client_entity)) {
DLOG(WARNING) << "The given entity must be a bookmark.";
return nullptr;
}
std::string originator_cache_guid;
std::string originator_client_item_id;
std::string client_tag_hash;
if (current_server_entity.IsDeleted()) {
// Handle undeletions.
originator_cache_guid = updating_client_cache_guid;
originator_client_item_id =
LoopbackServerEntity::GetInnerIdFromId(client_entity.id_string());
// An undeletion is similar to a creation, so let's honor the client tag
// provided by the client (if any).
client_tag_hash = client_entity.client_tag_hash();
} else {
// Regular case (non-undeletion).
const PersistentBookmarkEntity& current_bookmark_entity =
static_cast<const PersistentBookmarkEntity&>(current_server_entity);
originator_cache_guid = current_bookmark_entity.originator_cache_guid_;
originator_client_item_id =
current_bookmark_entity.originator_client_item_id_;
// Note that the client tag provided by the client in `client_entity` is
// ignored during non-creations updates, since it's meant to be immutable.
client_tag_hash = current_bookmark_entity.client_tag_hash_;
}
// Using a version of 0 is okay here as it'll be updated before this entity is
// actually saved.
return std::make_unique<PersistentBookmarkEntity>(
client_entity.id_string(), 0, client_entity.name(), originator_cache_guid,
originator_client_item_id, client_tag_hash,
client_entity.unique_position(), client_entity.specifics(),
client_entity.folder(), parent_id, client_entity.ctime(),
client_entity.mtime());
}
// static
std::unique_ptr<LoopbackServerEntity>
PersistentBookmarkEntity::CreateFromEntity(
const sync_pb::SyncEntity& client_entity) {
if (!IsBookmark(client_entity)) {
DLOG(WARNING) << "The given entity must be a bookmark.";
return nullptr;
}
return std::make_unique<PersistentBookmarkEntity>(
client_entity.id_string(), client_entity.version(), client_entity.name(),
client_entity.originator_cache_guid(),
client_entity.originator_client_item_id(),
client_entity.client_tag_hash(), client_entity.unique_position(),
client_entity.specifics(), client_entity.folder(),
client_entity.parent_id_string(), client_entity.ctime(),
client_entity.mtime());
}
PersistentBookmarkEntity::PersistentBookmarkEntity(
const string& id,
int64_t version,
const string& name,
const string& originator_cache_guid,
const string& originator_client_item_id,
const string& client_tag_hash,
const sync_pb::UniquePosition& unique_position,
const sync_pb::EntitySpecifics& specifics,
bool is_folder,
const string& parent_id,
int64_t creation_time,
int64_t last_modified_time)
: LoopbackServerEntity(id, syncer::BOOKMARKS, version, name),
originator_cache_guid_(originator_cache_guid),
originator_client_item_id_(originator_client_item_id),
client_tag_hash_(client_tag_hash),
is_folder_(is_folder),
unique_position_(unique_position),
parent_id_(parent_id),
creation_time_(creation_time),
last_modified_time_(last_modified_time) {
if (!client_tag_hash.empty() && !originator_client_item_id.empty()) {
// This relies technically on a well-behaving client, but verifying here to
// avoid issues with Local Sync, which uses LoopbackServer.
DCHECK_EQ(
ClientTagHash::FromHashed(client_tag_hash),
ClientTagHash::FromUnhashed(BOOKMARKS, originator_client_item_id));
}
SetSpecifics(specifics);
}
void PersistentBookmarkEntity::SetParentId(const string& parent_id) {
parent_id_ = parent_id;
}
bool PersistentBookmarkEntity::RequiresParentId() const {
// Bookmarks are stored as a hierarchy. All bookmarks must have a parent ID.
return true;
}
string PersistentBookmarkEntity::GetParentId() const {
return parent_id_;
}
sync_pb::LoopbackServerEntity_Type
PersistentBookmarkEntity::GetLoopbackServerEntityType() const {
return sync_pb::LoopbackServerEntity_Type_BOOKMARK;
}
void PersistentBookmarkEntity::SerializeAsProto(
sync_pb::SyncEntity* proto) const {
LoopbackServerEntity::SerializeBaseProtoFields(proto);
if (!client_tag_hash_.empty()) {
proto->set_client_tag_hash(client_tag_hash_);
}
proto->set_originator_cache_guid(originator_cache_guid_);
proto->set_originator_client_item_id(originator_client_item_id_);
proto->set_ctime(creation_time_);
proto->set_mtime(last_modified_time_);
sync_pb::UniquePosition* unique_position = proto->mutable_unique_position();
unique_position->CopyFrom(unique_position_);
}
bool PersistentBookmarkEntity::IsFolder() const {
return is_folder_;
}
} // namespace syncer
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