mirror of
https://github.com/kidfromjupiter/nearby.git
synced 2026-09-15 07:06:11 -04:00
Janusz Sobczak
a92abac83a
1. Update the API to accept the credentials on input instead of credential manager. 2. Update the test with values using the LDT encryption. These changes allow us to have a more asynchronous implementaion. When broadcasting we can: 1. Fetch the private credentials asynchronously. 2. Create the advertisement and start broadcasting when the credentials have been fetched. When scanning we can: 1. Fetch public credentials asynchronously. 2. Start scanning for advertisements. 3. Update the decoder when new credentials are fetched. PiperOrigin-RevId: 493998041
103 lines
3.2 KiB
C++
103 lines
3.2 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_IMPLEMENTATION_BASE_BROADCAST_REQUEST_H_
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#define THIRD_PARTY_NEARBY_PRESENCE_IMPLEMENTATION_BASE_BROADCAST_REQUEST_H_
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#include <stdint.h>
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#include <string>
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#include "absl/status/statusor.h"
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#include "absl/strings/string_view.h"
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#include "absl/types/variant.h"
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#include "internal/platform/implementation/credential_callbacks.h"
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#include "internal/proto/credential.pb.h"
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#include "presence/broadcast_request.h"
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#include "presence/power_mode.h"
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namespace nearby {
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namespace presence {
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constexpr int8_t kUnspecifiedTxPower = -128;
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constexpr size_t kSaltSize = 2;
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// The identity metadata size in the base advertisement
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constexpr size_t kBaseMetadataSize = 14;
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/** Defines the action (intended actions) of base NP advertisement */
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struct Action {
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uint32_t action;
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};
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/** Defines a Nearby Presence broadcast request */
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struct BaseBroadcastRequest {
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// Creates `BaseBroadcastRequest` from the public API request in
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// `BroadcastRequest`.
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static absl::StatusOr<BaseBroadcastRequest> Create(
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const BroadcastRequest& request);
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struct BasePresence {
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CredentialSelector credential_selector;
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Action action;
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};
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struct BaseFastPair {
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struct Discoverable {
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std::string model_id;
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};
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struct Nondiscoverable {
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std::string account_key_data;
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std::string battery_info;
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};
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absl::variant<Discoverable, Nondiscoverable> advertisement;
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};
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struct BaseEddystone {
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std::string ephemeral_id;
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};
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absl::variant<BasePresence, BaseFastPair, BaseEddystone> variant;
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std::string salt;
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int8_t tx_power;
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unsigned int interval_ms;
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PowerMode power_mode;
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};
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/** Builds a brodacast request variant with NP identity for BLE 4.2 */
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class BasePresenceRequestBuilder {
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public:
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explicit BasePresenceRequestBuilder(
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const nearby::internal::IdentityType& identity)
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: identity_(identity) {}
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BasePresenceRequestBuilder& SetSalt(absl::string_view salt);
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BasePresenceRequestBuilder& SetTxPower(int8_t tx_power);
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BasePresenceRequestBuilder& SetAction(const Action& action);
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BasePresenceRequestBuilder& SetPowerMode(PowerMode power_mode);
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BasePresenceRequestBuilder& SetAccountName(absl::string_view account_name);
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BasePresenceRequestBuilder& SetManagerAppId(absl::string_view manager_app_id);
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explicit operator BaseBroadcastRequest() const;
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private:
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nearby::internal::IdentityType identity_;
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std::string salt_;
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int8_t tx_power_ = kUnspecifiedTxPower;
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Action action_;
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PowerMode power_mode_ = PowerMode::kNoPower;
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std::string account_name_;
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std::string manager_app_id_;
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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_BASE_BROADCAST_REQUEST_H_
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