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https://github.com/kidfromjupiter/nearby.git
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hai007
cdd6870af2
Upon succesfully dectypting an advertisements, the decoding library returns the id of the credential which was used to decrypt. We then use this id to correlate the decoded adv back to the original shared_credential which was used to decrypt it and save this and propagate it in the result returned to the caller PiperOrigin-RevId: 646179759
62 lines
2.2 KiB
C++
62 lines
2.2 KiB
C++
// Copyright 2022 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_PRESENCE_ADVERTISEMENT_DECODER_RUST_IMPL_H_
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#define THIRD_PARTY_NEARBY_PRESENCE_ADVERTISEMENT_DECODER_RUST_IMPL_H_
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#include <vector>
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#include "absl/container/flat_hash_map.h"
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#include "absl/status/statusor.h"
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#include "absl/strings/string_view.h"
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#include "nearby_protocol.h"
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#include "presence/implementation/advertisement_decoder.h"
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namespace nearby {
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namespace presence {
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// Implements the Rust backed parsing and decrypting of advertisement bytes
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class AdvertisementDecoderImpl : public AdvertisementDecoder {
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public:
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AdvertisementDecoderImpl()
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: cred_book_(InitializeCredentialBook(nullptr)),
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private_credentials_(
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std::vector<::nearby::internal::SharedCredential>()) {}
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explicit AdvertisementDecoderImpl(
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absl::flat_hash_map<nearby::internal::IdentityType,
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std::vector<internal::SharedCredential>>*
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credentials_map)
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: cred_book_(InitializeCredentialBook(credentials_map)),
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private_credentials_(
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(*credentials_map)
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[internal::IdentityType::IDENTITY_TYPE_PRIVATE_GROUP]) {}
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absl::StatusOr<Advertisement> DecodeAdvertisement(
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absl::string_view advertisement) override;
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private:
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nearby_protocol::CredentialBook InitializeCredentialBook(
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absl::flat_hash_map<nearby::internal::IdentityType,
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std::vector<::nearby::internal::SharedCredential>>*
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credentials_map);
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nearby_protocol::CredentialBook cred_book_;
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std::vector<::nearby::internal::SharedCredential> private_credentials_;
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};
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} // namespace presence
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} // namespace nearby
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#endif // THIRD_PARTY_NEARBY_PRESENCE_ADVERTISEMENT_DECODER_IMPL_H_
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