mirror of
https://github.com/kidfromjupiter/nearby.git
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hai007
734014a841
- Both implementations implement `AdvertisementDecoder` interface and provide the concrete implementation for AdvertisementDecoderImpl - cleanup missing includes as complained about by clang-tidy PiperOrigin-RevId: 621187625
60 lines
2.1 KiB
C++
60 lines
2.1 KiB
C++
// Copyright 2024 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_IMPLEMENTATION_ADVERTISEMENT_DECODER_H_
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#define THIRD_PARTY_NEARBY_PRESENCE_IMPLEMENTATION_ADVERTISEMENT_DECODER_H_
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#include <cstdint>
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#include <string>
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#include <vector>
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#include "absl/status/status.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 "internal/proto/credential.pb.h"
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#include "presence/data_element.h"
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namespace nearby {
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namespace presence {
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// The structured decoded form of a detected Nearby Presence advertisement
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struct Advertisement {
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uint8_t version = 0;
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std::vector<DataElement> data_elements;
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absl::StatusOr<internal::SharedCredential> public_credential =
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absl::NotFoundError("");
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internal::IdentityType identity_type = internal::IDENTITY_TYPE_UNSPECIFIED;
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std::string metadata_key;
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};
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// Interface for decoding Nearby Presence advertisements from a payload of raw
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// bytes into a structured, decrypted, and decoded format
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class AdvertisementDecoder {
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public:
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// Is needed otherwise deleting an instance via a pointer to a base class
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// results in undefined behavior
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virtual ~AdvertisementDecoder() = default;
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// Returns the structured and decoded contents of an advertisement given a
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// payload of bytes as a string. Returns an error if the advertisement is
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// misformatted or if it couldn't be decrypted.
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virtual absl::StatusOr<Advertisement> DecodeAdvertisement(
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absl::string_view advertisement) = 0;
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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_IMPLEMENTATION_ADVERTISEMENT_DECODER_H_
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