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// Copyright 2019 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/kms_clients.h"
#include <memory>
#include <string>
#include <utility>
#include <vector>
#include "absl/status/status.h"
#include "absl/strings/string_view.h"
#include "absl/synchronization/mutex.h"
#include "tink/kms_client.h"
#include "tink/util/errors.h"
#include "tink/util/status.h"
#include "tink/util/statusor.h"
namespace crypto {
namespace tink {
using crypto::tink::util::Status;
using crypto::tink::util::StatusOr;
// static
KmsClients& KmsClients::GlobalInstance() {
static KmsClients* instance = new KmsClients();
return *instance;
}
Status KmsClients::LocalAdd(std::unique_ptr<KmsClient> kms_client) {
if (kms_client == nullptr) {
return Status(absl::StatusCode::kInvalidArgument,
"kms_client must be non-null.");
}
absl::MutexLock lock(&clients_mutex_);
clients_.push_back(std::move(kms_client));
return util::OkStatus();
}
StatusOr<const KmsClient*> KmsClients::LocalGet(absl::string_view key_uri) {
if (key_uri.empty()) {
return Status(absl::StatusCode::kInvalidArgument,
"key_uri must be non-empty.");
}
absl::MutexLock lock(&clients_mutex_);
for (const auto& client : clients_) {
if (client->DoesSupport(key_uri)) return client.get();
}
return ToStatusF(absl::StatusCode::kNotFound,
"no KmsClient found for key '%s'.",
std::string(key_uri).c_str());
}
} // namespace tink
} // namespace crypto
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