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2023-01-06 02:53:57 -08:00

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// Copyright 2022 Google LLC
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// https://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
#ifndef PLATFORM_IMPL_G3_WIFI_H_
#define PLATFORM_IMPL_G3_WIFI_H_
#include <string>
#include <vector>
#include "absl/synchronization/mutex.h"
#include "internal/platform/implementation/wifi.h"
#include "internal/platform/logging.h"
#include "internal/platform/medium_environment.h"
namespace nearby {
namespace g3 {
class WifiMedium;
// Container of operations that can be performed over the Wifi medium.
class WifiMedium : public api::WifiMedium {
public:
WifiMedium() {
auto& env = MediumEnvironment::Instance();
const std::string ip_addr_4bytes = env.GetFakeIPAddress();
std::string ip_addr_dot_decimal;
if (!ip_addr_4bytes.empty()) {
for (auto byte : ip_addr_4bytes) {
if (!ip_addr_dot_decimal.empty())
absl::StrAppend(&ip_addr_dot_decimal, ".");
absl::StrAppend(&ip_addr_dot_decimal, absl::StrFormat("%d", byte));
}
}
wifi_capability_ = {true, false, true};
wifi_information_ = {true, "nearby_test_ap", "34:36:3B:C7:8C:77",
5230, ip_addr_dot_decimal, ip_addr_4bytes};
}
~WifiMedium() override = default;
WifiMedium(const WifiMedium&) = delete;
WifiMedium(WifiMedium&&) = delete;
WifiMedium& operator=(const WifiMedium&) = delete;
WifiMedium& operator=(WifiMedium&&) = delete;
// If the WiFi Adaptor supports to start a Wifi interface.
bool IsInterfaceValid() const override { return true; }
api::WifiCapability& GetCapability() override {
absl::MutexLock lock(&mutex_);
return wifi_capability_;
}
api::WifiInformation& GetInformation() override {
absl::MutexLock lock(&mutex_);
return wifi_information_;
}
std::string GetIpAddress() override {
absl::MutexLock lock(&mutex_);
return wifi_information_.ip_address_dot_decimal;
}
class ScanResultCallback : public api::WifiMedium::ScanResultCallback {
public:
// TODO(b/184975123): replace with real implementation.
~ScanResultCallback() override = default;
// TODO(b/184975123): replace with real implementation.
void OnScanResults(
const std::vector<api::WifiScanResult>& scan_results) override {}
};
// Does not take ownership of the passed-in scan_result_callback -- destroying
// that is up to the caller.
// TODO(b/184975123): replace with real implementation.
bool Scan(const api::WifiMedium::ScanResultCallback& scan_result_callback)
override {
return false;
}
// If 'password' is an empty string, none has been provided. Returns
// WifiConnectionStatus::CONNECTED on success, or the appropriate failure code
// otherwise.
// TODO(b/184975123): replace with real implementation.
api::WifiConnectionStatus ConnectToNetwork(
absl::string_view ssid, absl::string_view password,
api::WifiAuthType auth_type) override {
return api::WifiConnectionStatus::kUnknown;
}
// Blocks until it's certain of there being a connection to the internet, or
// returns false if it fails to do so.
//
// How this method wants to verify said connection is totally up to it (so it
// can feel free to ping whatever server, download whatever resource, etc.
// that it needs to gain confidence that the internet is reachable hereon in).
// TODO(b/184975123): replace with real implementation.
bool VerifyInternetConnectivity() override { return false; }
private:
absl::Mutex mutex_;
api::WifiCapability wifi_capability_ ABSL_GUARDED_BY(mutex_);
api::WifiInformation wifi_information_ ABSL_GUARDED_BY(mutex_);
};
} // namespace g3
} // namespace nearby
#endif // PLATFORM_IMPL_G3_WIFI_H_