mirror of
https://github.com/kidfromjupiter/nearby.git
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87 lines
2.9 KiB
C++
87 lines
2.9 KiB
C++
// Copyright 2020 Google LLC
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// https://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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#ifndef CORE_INTERNAL_ENCRYPTION_RUNNER_H_
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#define CORE_INTERNAL_ENCRYPTION_RUNNER_H_
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#include <memory>
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#include <string>
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#include "securegcm/ukey2_handshake.h"
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#include "absl/functional/any_invocable.h"
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#include "connections/implementation/client_proxy.h"
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#include "connections/implementation/endpoint_channel.h"
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#include "internal/platform/atomic_boolean.h"
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#include "internal/platform/byte_array.h"
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#include "internal/platform/scheduled_executor.h"
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#include "internal/platform/single_thread_executor.h"
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namespace nearby {
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namespace connections {
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// Encrypts a connection over UKEY2.
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//
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// NOTE: Stalled EndpointChannels will be disconnected after kTimeout.
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// This is to prevent unverified endpoints from maintaining an
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// indefinite connection to us.
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class EncryptionRunner {
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public:
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EncryptionRunner() = default;
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~EncryptionRunner();
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struct ResultListener {
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void CallSuccessCallback(const std::string& endpoint_id,
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std::unique_ptr<securegcm::UKey2Handshake> ukey2,
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const std::string& auth_token,
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const ByteArray& raw_auth_token);
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void CallFailureCallback(const std::string& endpoint_id);
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void Reset();
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// @EncryptionRunnerThread
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absl::AnyInvocable<void(const std::string& endpoint_id,
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std::unique_ptr<securegcm::UKey2Handshake> ukey2,
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const std::string& auth_token,
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const ByteArray& raw_auth_token) &&>
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on_success_cb;
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// Encryption has failed.
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//
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// @EncryptionRunnerThread
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absl::AnyInvocable<void(const std::string& endpoint_id)> on_failure_cb;
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};
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// @AnyThread
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void StartServer(ClientProxy* client, const std::string& endpoint_id,
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std::shared_ptr<EndpointChannel> endpoint_channel,
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ResultListener result_listener);
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// @AnyThread
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void StartClient(ClientProxy* client, const std::string& endpoint_id,
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std::shared_ptr<EndpointChannel> endpoint_channel,
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ResultListener result_listener);
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// @AnyThread
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void Shutdown();
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private:
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AtomicBoolean is_stopped_{false};
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ScheduledExecutor alarm_executor_;
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SingleThreadExecutor server_executor_;
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SingleThreadExecutor client_executor_;
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};
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} // namespace connections
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} // namespace nearby
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#endif // CORE_INTERNAL_ENCRYPTION_RUNNER_H_
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