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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/loopback_server_entity.h"
#include <limits>
#include <string_view>
#include <vector>
#include "base/memory/ref_counted.h"
#include "base/notreached.h"
#include "base/strings/string_number_conversions.h"
#include "base/strings/string_split.h"
#include "base/strings/string_util.h"
#include "base/strings/stringprintf.h"
#include "components/sync/engine/loopback_server/persistent_bookmark_entity.h"
#include "components/sync/engine/loopback_server/persistent_permanent_entity.h"
#include "components/sync/engine/loopback_server/persistent_tombstone_entity.h"
#include "components/sync/engine/loopback_server/persistent_unique_client_entity.h"
#include "components/sync/protocol/loopback_server.pb.h"
#include "components/sync/protocol/sync_entity.pb.h"
#include "net/base/net_errors.h"
#include "net/http/http_status_code.h"
using std::string;
using std::vector;
using syncer::DataType;
namespace {
// The separator used when formatting IDs.
//
// We chose the underscore character because it doesn't conflict with the
// special characters used by base/base64.h's encoding, which is also used in
// the construction of some IDs.
const char kIdSeparator[] = "_";
} // namespace
namespace syncer {
LoopbackServerEntity::~LoopbackServerEntity() = default;
// static
std::unique_ptr<LoopbackServerEntity>
LoopbackServerEntity::CreateEntityFromProto(
const sync_pb::LoopbackServerEntity& entity) {
switch (entity.type()) {
case sync_pb::LoopbackServerEntity_Type_TOMBSTONE:
return PersistentTombstoneEntity::CreateFromEntity(entity.entity());
case sync_pb::LoopbackServerEntity_Type_PERMANENT:
return std::make_unique<PersistentPermanentEntity>(
entity.entity().id_string(), entity.entity().version(),
syncer::GetDataTypeFromSpecifics(entity.entity().specifics()),
entity.entity().name(), entity.entity().parent_id_string(),
entity.entity().server_defined_unique_tag(),
entity.entity().specifics());
case sync_pb::LoopbackServerEntity_Type_BOOKMARK:
return PersistentBookmarkEntity::CreateFromEntity(entity.entity());
case sync_pb::LoopbackServerEntity_Type_UNIQUE:
return PersistentUniqueClientEntity::CreateFromEntity(entity.entity());
case sync_pb::LoopbackServerEntity_Type_UNKNOWN:
NOTREACHED() << "Unknown type encountered";
}
return nullptr;
}
const std::string& LoopbackServerEntity::GetId() const {
return id_;
}
DataType LoopbackServerEntity::GetDataType() const {
return data_type_;
}
int64_t LoopbackServerEntity::GetVersion() const {
return version_;
}
void LoopbackServerEntity::SetVersion(int64_t version) {
version_ = version;
}
const std::string& LoopbackServerEntity::GetName() const {
return name_;
}
void LoopbackServerEntity::SetName(const std::string& name) {
name_ = name;
}
void LoopbackServerEntity::SetSpecifics(
const sync_pb::EntitySpecifics& updated_specifics) {
specifics_ = updated_specifics;
}
sync_pb::EntitySpecifics LoopbackServerEntity::GetSpecifics() const {
return specifics_;
}
bool LoopbackServerEntity::IsDeleted() const {
return false;
}
bool LoopbackServerEntity::IsFolder() const {
return false;
}
bool LoopbackServerEntity::IsPermanent() const {
return false;
}
sync_pb::LoopbackServerEntity_Type
LoopbackServerEntity::GetLoopbackServerEntityType() const {
NOTREACHED();
}
// static
string LoopbackServerEntity::CreateId(const DataType& data_type,
const string& inner_id) {
int field_number = GetSpecificsFieldNumberFromDataType(data_type);
return base::StringPrintf("%d%s%s", field_number, kIdSeparator,
inner_id.c_str());
}
// static
std::string LoopbackServerEntity::GetTopLevelId(const DataType& data_type) {
return LoopbackServerEntity::CreateId(
data_type, syncer::DataTypeToProtocolRootTag(data_type));
}
// static
DataType LoopbackServerEntity::GetDataTypeFromId(const string& id) {
vector<std::string_view> tokens = base::SplitStringPiece(
id, kIdSeparator, base::KEEP_WHITESPACE, base::SPLIT_WANT_NONEMPTY);
int field_number;
if (tokens.size() != 2 || !base::StringToInt(tokens[0], &field_number)) {
return syncer::UNSPECIFIED;
}
return syncer::GetDataTypeFromSpecificsFieldNumber(field_number);
}
// static
std::string LoopbackServerEntity::GetInnerIdFromId(const std::string& id) {
vector<std::string_view> tokens = base::SplitStringPiece(
id, kIdSeparator, base::KEEP_WHITESPACE, base::SPLIT_WANT_NONEMPTY);
if (tokens.size() != 2) {
return std::string();
}
return std::string(tokens[1]);
}
LoopbackServerEntity::LoopbackServerEntity(const string& id,
const DataType& data_type,
int64_t version,
const string& name)
: id_(id), data_type_(data_type), version_(version), name_(name) {}
void LoopbackServerEntity::SerializeBaseProtoFields(
sync_pb::SyncEntity* sync_entity) const {
sync_pb::EntitySpecifics* specifics = sync_entity->mutable_specifics();
specifics->CopyFrom(specifics_);
// LoopbackServerEntity fields
sync_entity->set_id_string(id_);
sync_entity->set_version(version_);
sync_entity->set_name(name_);
// Data via accessors
sync_entity->set_deleted(IsDeleted());
sync_entity->set_folder(IsFolder());
if (RequiresParentId()) {
sync_entity->set_parent_id_string(GetParentId());
}
}
void LoopbackServerEntity::SerializeAsLoopbackServerEntity(
sync_pb::LoopbackServerEntity* entity) const {
entity->set_type(GetLoopbackServerEntityType());
entity->set_data_type(static_cast<int64_t>(GetDataType()));
SerializeAsProto(entity->mutable_entity());
}
} // namespace syncer
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