mirror of
https://github.com/kidfromjupiter/nearby.git
synced 2026-09-15 15:16:12 -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
112 lines
3.7 KiB
C++
112 lines
3.7 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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#include "presence/implementation/base_broadcast_request.h"
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#include <string>
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#include <variant>
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#include "absl/status/status.h"
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#include "absl/strings/string_view.h"
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#include "internal/platform/logging.h"
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#include "presence/broadcast_request.h"
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#include "presence/implementation/action_factory.h"
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#include "presence/implementation/encryption.h"
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namespace nearby {
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namespace presence {
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BasePresenceRequestBuilder& BasePresenceRequestBuilder::SetSalt(
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absl::string_view salt) {
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if (salt.size() != kSaltSize) {
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NEARBY_LOG(WARNING, "Unsupported salt length: %d", salt.size());
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} else {
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salt_ = std::string(salt);
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}
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return *this;
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}
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BasePresenceRequestBuilder& BasePresenceRequestBuilder::SetTxPower(
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int8_t tx_power) {
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tx_power_ = tx_power;
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return *this;
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}
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BasePresenceRequestBuilder& BasePresenceRequestBuilder::SetAction(
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const Action& action) {
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action_ = action;
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return *this;
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}
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BasePresenceRequestBuilder& BasePresenceRequestBuilder::SetPowerMode(
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PowerMode power_mode) {
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power_mode_ = power_mode;
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return *this;
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}
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BasePresenceRequestBuilder& BasePresenceRequestBuilder::SetAccountName(
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absl::string_view account_name) {
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account_name_ = std::string(account_name);
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return *this;
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}
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BasePresenceRequestBuilder& BasePresenceRequestBuilder::SetManagerAppId(
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absl::string_view manager_app_id) {
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manager_app_id_ = std::string(manager_app_id);
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return *this;
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}
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BasePresenceRequestBuilder::operator BaseBroadcastRequest() const {
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BaseBroadcastRequest::BasePresence presence{
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.credential_selector = {.manager_app_id = manager_app_id_,
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.account_name = account_name_,
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.identity_type = identity_},
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.action = action_};
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BaseBroadcastRequest broadcast_request{
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.variant = presence,
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.salt = salt_.size() == kSaltSize
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? salt_
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: Encryption::GenerateRandomByteArray(kSaltSize),
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.tx_power = tx_power_,
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.power_mode = power_mode_};
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return broadcast_request;
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}
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absl::StatusOr<BaseBroadcastRequest> BaseBroadcastRequest::Create(
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const BroadcastRequest& request) {
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if (absl::holds_alternative<PresenceBroadcast>(request.variant)) {
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const auto& presence_request =
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absl::get<PresenceBroadcast>(request.variant);
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if (presence_request.sections.empty()) {
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return absl::InvalidArgumentError("Missing broadcast sections");
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}
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if (presence_request.sections.size() > 1) {
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NEARBY_LOG(WARNING,
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"Only first section is used in BLE 4.2 advertisement");
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}
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const PresenceBroadcast::BroadcastSection& section =
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presence_request.sections.front();
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return BaseBroadcastRequest(
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BasePresenceRequestBuilder(section.identity)
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.SetTxPower(request.tx_power)
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.SetAction(ActionFactory::CreateAction(section.extended_properties))
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.SetPowerMode(request.power_mode)
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.SetManagerAppId(section.manager_app_id)
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.SetAccountName(section.account_name));
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}
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return absl::UnimplementedError("Request not supported");
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}
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} // namespace presence
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} // namespace nearby
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