| // Copyright 2023 Google LLC |
| // |
| // Licensed under the Apache License, Version 2.0 (the "License"); |
| // you may not use this file except in compliance with the License. |
| // You may obtain a copy of the License at |
| // |
| // http://www.apache.org/licenses/LICENSE-2.0 |
| // |
| // Unless required by applicable law or agreed to in writing, software |
| // distributed under the License is distributed on an "AS IS" BASIS, |
| // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| // See the License for the specific language governing permissions and |
| // limitations under the License. |
| // |
| //////////////////////////////////////////////////////////////////////////////// |
| |
| #include "tink/internal/mutable_serialization_registry.h" |
| |
| #include <memory> |
| #include <utility> |
| |
| #include "absl/memory/memory.h" |
| #include "absl/status/status.h" |
| #include "absl/synchronization/mutex.h" |
| #include "absl/types/optional.h" |
| #include "tink/insecure_secret_key_access.h" |
| #include "tink/internal/key_parser.h" |
| #include "tink/internal/key_serializer.h" |
| #include "tink/internal/legacy_proto_key.h" |
| #include "tink/internal/parameters_parser.h" |
| #include "tink/internal/parameters_serializer.h" |
| #include "tink/internal/proto_key_serialization.h" |
| #include "tink/internal/serialization.h" |
| #include "tink/internal/serialization_registry.h" |
| #include "tink/key.h" |
| #include "tink/parameters.h" |
| #include "tink/secret_key_access_token.h" |
| #include "tink/util/status.h" |
| #include "tink/util/statusor.h" |
| |
| namespace crypto { |
| namespace tink { |
| namespace internal { |
| |
| MutableSerializationRegistry& MutableSerializationRegistry::GlobalInstance() { |
| static MutableSerializationRegistry* instance = |
| new MutableSerializationRegistry(); |
| return *instance; |
| } |
| |
| util::Status MutableSerializationRegistry::RegisterParametersParser( |
| ParametersParser* parser) { |
| absl::WriterMutexLock lock(®istry_mutex_); |
| SerializationRegistry::Builder builder(registry_); |
| util::Status status = builder.RegisterParametersParser(parser); |
| if (!status.ok()) return status; |
| registry_ = std::move(builder).Build(); |
| return util::OkStatus(); |
| } |
| |
| util::Status MutableSerializationRegistry::RegisterParametersSerializer( |
| ParametersSerializer* serializer) { |
| absl::WriterMutexLock lock(®istry_mutex_); |
| SerializationRegistry::Builder builder(registry_); |
| util::Status status = builder.RegisterParametersSerializer(serializer); |
| if (!status.ok()) return status; |
| registry_ = std::move(builder).Build(); |
| return util::OkStatus(); |
| } |
| |
| util::Status MutableSerializationRegistry::RegisterKeyParser( |
| KeyParser* parser) { |
| absl::WriterMutexLock lock(®istry_mutex_); |
| SerializationRegistry::Builder builder(registry_); |
| util::Status status = builder.RegisterKeyParser(parser); |
| if (!status.ok()) return status; |
| registry_ = std::move(builder).Build(); |
| return util::OkStatus(); |
| } |
| |
| util::Status MutableSerializationRegistry::RegisterKeySerializer( |
| KeySerializer* serializer) { |
| absl::WriterMutexLock lock(®istry_mutex_); |
| SerializationRegistry::Builder builder(registry_); |
| util::Status status = builder.RegisterKeySerializer(serializer); |
| if (!status.ok()) return status; |
| registry_ = std::move(builder).Build(); |
| return util::OkStatus(); |
| } |
| |
| util::StatusOr<std::unique_ptr<Parameters>> |
| MutableSerializationRegistry::ParseParameters( |
| const Serialization& serialization) { |
| absl::ReaderMutexLock lock(®istry_mutex_); |
| return registry_.ParseParameters(serialization); |
| } |
| |
| util::StatusOr<std::unique_ptr<Key>> MutableSerializationRegistry::ParseKey( |
| const Serialization& serialization, |
| absl::optional<SecretKeyAccessToken> token) { |
| absl::ReaderMutexLock lock(®istry_mutex_); |
| return registry_.ParseKey(serialization, token); |
| } |
| |
| util::StatusOr<std::unique_ptr<Key>> |
| MutableSerializationRegistry::ParseKeyWithLegacyFallback( |
| const Serialization& serialization, SecretKeyAccessToken token) { |
| util::StatusOr<std::unique_ptr<Key>> key = ParseKey(serialization, token); |
| if (key.status().code() == absl::StatusCode::kNotFound) { |
| const ProtoKeySerialization* proto_serialization = |
| dynamic_cast<const ProtoKeySerialization*>(&serialization); |
| util::StatusOr<LegacyProtoKey> proto_key = internal::LegacyProtoKey::Create( |
| *proto_serialization, InsecureSecretKeyAccess::Get()); |
| if (!proto_key.ok()) return proto_key.status(); |
| return {absl::make_unique<LegacyProtoKey>(*proto_key)}; |
| } |
| if (!key.ok()) return key.status(); |
| return key; |
| } |
| |
| } // namespace internal |
| } // namespace tink |
| } // namespace crypto |