mirror of
https://github.com/kidfromjupiter/nearby.git
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130 lines
4.7 KiB
C++
130 lines
4.7 KiB
C++
// Copyright 2022-2023 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 THIRD_PARTY_NEARBY_SHARING_PAIRED_KEY_VERIFICATION_RUNNER_H_
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#define THIRD_PARTY_NEARBY_SHARING_PAIRED_KEY_VERIFICATION_RUNNER_H_
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#include <stdint.h>
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#include <functional>
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#include <memory>
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#include <optional>
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#include <string>
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#include <vector>
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#include "absl/strings/string_view.h"
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#include "absl/time/time.h"
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#include "internal/platform/clock.h"
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#include "internal/platform/device_info.h"
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#include "proto/sharing_enums.pb.h"
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#include "sharing/certificates/nearby_share_certificate_manager.h"
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#include "sharing/certificates/nearby_share_decrypted_public_certificate.h"
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#include "sharing/incoming_frames_reader.h"
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#include "sharing/nearby_connection.h"
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#include "sharing/nearby_sharing_settings.h"
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#include "sharing/proto/enums.pb.h"
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#include "sharing/proto/wire_format.pb.h"
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#include "sharing/share_target.h"
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namespace nearby {
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namespace sharing {
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class PairedKeyVerificationRunner
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: public std::enable_shared_from_this<PairedKeyVerificationRunner> {
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public:
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enum class PairedKeyVerificationResult {
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// Default value for verification result.
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kUnknown,
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// Succeeded with verification.
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kSuccess,
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// Failed to verify.
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kFail,
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// Unable to verify. Occurs when missing proper certificates.
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kUnable,
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};
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PairedKeyVerificationRunner(
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nearby::Clock* clock, nearby::DeviceInfo& device_info,
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NearbyShareSettings* nearby_share_settings,
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bool self_share_feature_enabled, const ShareTarget& share_target,
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absl::string_view endpoint_id, const std::vector<uint8_t>& token,
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NearbyConnection* connection,
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const std::optional<NearbyShareDecryptedPublicCertificate>& certificate,
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NearbyShareCertificateManager* certificate_manager,
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bool restrict_to_contacts, IncomingFramesReader* frames_reader,
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absl::Duration read_frame_timeout);
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~PairedKeyVerificationRunner();
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void Run(std::function<
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void(PairedKeyVerificationResult verification_result,
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::location::nearby::proto::sharing::OSType remote_os_type)>
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callback);
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std::weak_ptr<PairedKeyVerificationRunner> GetWeakPtr() {
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return this->weak_from_this();
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}
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private:
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void SendPairedKeyEncryptionFrame();
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void OnReadPairedKeyEncryptionFrame(
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std::optional<nearby::sharing::service::proto::V1Frame> frame);
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void OnReadPairedKeyResultFrame(
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std::vector<PairedKeyVerificationResult> verification_results,
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std::optional<nearby::sharing::service::proto::V1Frame> frame);
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void SendPairedKeyResultFrame(PairedKeyVerificationResult result);
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PairedKeyVerificationResult VerifyRemotePublicCertificate(
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const nearby::sharing::service::proto::V1Frame& frame);
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PairedKeyVerificationResult VerifyRemotePublicCertificateRelaxed(
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const nearby::sharing::service::proto::V1Frame& frame);
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PairedKeyVerificationResult
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VerifyRemotePublicCertificateWithPrivateCertificate(
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proto::DeviceVisibility visibility,
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const nearby::sharing::service::proto::V1Frame& frame);
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PairedKeyVerificationResult VerifyPairedKeyEncryptionFrame(
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const nearby::sharing::service::proto::V1Frame& frame);
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PairedKeyVerificationResult MergeResults(
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const std::vector<PairedKeyVerificationResult>& results);
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void SendCertificateInfo();
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bool RelaxRestrictToContactsIfNeeded() const;
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proto::DeviceVisibility GetSignningVisibility() const;
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nearby::Clock* const clock_;
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nearby::DeviceInfo& device_info_;
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NearbyShareSettings* nearby_share_settings_;
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bool self_share_feature_enabled_;
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ShareTarget share_target_;
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std::string endpoint_id_;
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std::vector<uint8_t> raw_token_;
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NearbyConnection* connection_;
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std::optional<NearbyShareDecryptedPublicCertificate> certificate_;
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NearbyShareCertificateManager* certificate_manager_;
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bool restrict_to_contacts_ = false;
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IncomingFramesReader* frames_reader_;
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const absl::Duration read_frame_timeout_;
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std::function<void(PairedKeyVerificationResult,
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::location::nearby::proto::sharing::OSType)>
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callback_;
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bool relax_restrict_to_contacts_ = false;
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char local_prefix_;
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char remote_prefix_;
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};
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} // namespace sharing
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} // namespace nearby
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#endif // THIRD_PARTY_NEARBY_SHARING_PAIRED_KEY_VERIFICATION_RUNNER_H_
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