mirror of
https://github.com/kidfromjupiter/nearby.git
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694 lines
25 KiB
C++
694 lines
25 KiB
C++
// Copyright 2021 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 "internal/platform/implementation/windows/wifi_hotspot.h"
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#include <cstdint>
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#include <exception>
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#include <memory>
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#include <string>
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#include "absl/strings/string_view.h"
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#include "internal/platform/feature_flags.h"
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#include "internal/platform/flags/nearby_platform_feature_flags.h"
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#include "internal/platform/implementation/windows/wifi_intel.h"
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// Nearby connections headers
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#include "internal/flags/nearby_flags.h"
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#include "internal/platform/cancellation_flag_listener.h"
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#include "internal/platform/implementation/windows/utils.h"
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#include "internal/platform/logging.h"
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#include "internal/platform/wifi_utils.h"
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namespace nearby {
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namespace windows {
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WifiHotspotMedium::WifiHotspotMedium() {}
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WifiHotspotMedium::~WifiHotspotMedium() {
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StopWifiHotspot();
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DisconnectWifiHotspot();
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}
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bool WifiHotspotMedium::IsInterfaceValid() const {
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HANDLE wifi_direct_handle = NULL;
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DWORD negotiated_version = 0;
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DWORD result = 0;
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result =
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WFDOpenHandle(WFD_API_VERSION, &negotiated_version, &wifi_direct_handle);
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if (result == ERROR_SUCCESS) {
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NEARBY_LOGS(INFO) << "WiFi can support Hotspot";
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WFDCloseHandle(wifi_direct_handle);
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return true;
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}
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NEARBY_LOGS(ERROR) << "WiFi can't support Hotspot";
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return false;
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}
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std::unique_ptr<api::WifiHotspotSocket> WifiHotspotMedium::ConnectToService(
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absl::string_view ip_address, int port,
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CancellationFlag* cancellation_flag) {
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NEARBY_LOGS(WARNING) << __func__ << " : Connect to remote service.";
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if (ip_address.empty() || port == 0) {
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NEARBY_LOGS(ERROR) << "no valid service address and port to connect: "
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<< "ip_address = " << ip_address << ", port = " << port;
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return nullptr;
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}
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std::string ipv4_address;
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if (ip_address.length() == 4) {
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ipv4_address = ipaddr_4bytes_to_dotdecimal_string(ip_address);
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} else {
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ipv4_address = std::string(ip_address);
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}
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if (ipv4_address.empty()) {
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NEARBY_LOGS(ERROR) << "Invalid IP address parameter.";
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return nullptr;
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}
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HostName host_name{winrt::to_hstring(ipv4_address)};
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winrt::hstring service_name{winrt::to_hstring(port)};
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// Try connecting to the service up to wifi_hotspot_max_connection_retries,
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// because it may fail first time if DHCP procedure is not finished yet.
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int64_t wifi_hotspot_max_connection_retries =
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NearbyFlags::GetInstance().GetInt64Flag(
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platform::config_package_nearby::nearby_platform_feature::
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kWifiHotspotConnectionMaxRetries);
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int64_t wifi_hotspot_retry_interval_millis =
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NearbyFlags::GetInstance().GetInt64Flag(
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platform::config_package_nearby::nearby_platform_feature::
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kWifiHotspotConnectionIntervalMillis);
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int64_t wifi_hotspot_client_socket_connect_timeout_millis =
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NearbyFlags::GetInstance().GetInt64Flag(
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platform::config_package_nearby::nearby_platform_feature::
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kWifiHotspotConnectionTimeoutMillis);
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NEARBY_LOGS(INFO) << "maximum connection retries="
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<< wifi_hotspot_max_connection_retries
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<< ", connection interval="
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<< wifi_hotspot_retry_interval_millis
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<< "ms, connection timeout="
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<< wifi_hotspot_client_socket_connect_timeout_millis
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<< "ms";
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for (int i = 0; i < wifi_hotspot_max_connection_retries; i++) {
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try {
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StreamSocket socket{};
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// Listener to connect cancellation.
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std::unique_ptr<CancellationFlagListener>
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connection_cancellation_listener = nullptr;
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// setup cancel listener
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if (cancellation_flag != nullptr) {
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if (cancellation_flag->Cancelled()) {
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NEARBY_LOGS(INFO) << "connect has been cancelled to service "
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<< ipv4_address << ":" << port;
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return nullptr;
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}
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connection_cancellation_listener =
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std::make_unique<nearby::CancellationFlagListener>(
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cancellation_flag, [socket]() {
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NEARBY_LOGS(WARNING)
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<< "connect is closed due to it is cancelled.";
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socket.Close();
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});
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}
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if (FeatureFlags::GetInstance().GetFlags().enable_connection_timeout) {
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connection_timeout_ = scheduled_executor_.Schedule(
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[socket]() {
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NEARBY_LOGS(WARNING) << "connect is closed due to timeout.";
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socket.Close();
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},
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absl::Milliseconds(
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wifi_hotspot_client_socket_connect_timeout_millis));
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}
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socket.ConnectAsync(host_name, service_name).get();
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if (connection_timeout_ != nullptr) {
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connection_timeout_->Cancel();
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connection_timeout_ = nullptr;
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}
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auto wifi_hotspot_socket = std::make_unique<WifiHotspotSocket>(socket);
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NEARBY_LOGS(INFO) << "connected to remote service " << ipv4_address << ":"
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<< port;
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return wifi_hotspot_socket;
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} catch (std::exception exception) {
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NEARBY_LOGS(ERROR) << "failed to connect remote service " << ipv4_address
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<< ":" << port << " for the " << i + 1
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<< " time. Exception: " << exception.what();
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} catch (const winrt::hresult_error& error) {
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NEARBY_LOGS(ERROR) << "failed to connect remote service " << ipv4_address
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<< ":" << port << " for the " << i + 1
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<< " time. WinRT exception: " << error.code() << ": "
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<< winrt::to_string(error.message());
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} catch (...) {
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NEARBY_LOGS(ERROR) << "failed to connect remote service " << ipv4_address
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<< ":" << port << " for the " << i + 1
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<< " time due to unknown reason.";
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}
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if (connection_timeout_ != nullptr) {
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connection_timeout_->Cancel();
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connection_timeout_ = nullptr;
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}
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Sleep(wifi_hotspot_retry_interval_millis);
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}
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return nullptr;
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}
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std::unique_ptr<api::WifiHotspotServerSocket>
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WifiHotspotMedium::ListenForService(int port) {
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absl::MutexLock lock(&mutex_);
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NEARBY_LOGS(INFO) << __func__
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<< " :Start to listen connection from WiFi Hotspot client.";
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// check current status
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if (IsAccepting()) {
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NEARBY_LOGS(WARNING) << "accepting connections already started on port "
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<< server_socket_ptr_->GetPort();
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return nullptr;
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}
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auto server_socket = std::make_unique<WifiHotspotServerSocket>(port);
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server_socket_ptr_ = server_socket.get();
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if (server_socket->listen()) {
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medium_status_ |= kMediumStatusAccepting;
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// Setup close notifier after listen started.
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server_socket->SetCloseNotifier([this]() {
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absl::MutexLock lock(&mutex_);
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NEARBY_LOGS(INFO) << "Server socket was closed.";
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medium_status_ &= (~kMediumStatusAccepting);
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server_socket_ptr_ = nullptr;
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});
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NEARBY_LOGS(INFO) << "Started to listen serive on port "
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<< server_socket_ptr_->GetPort();
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return server_socket;
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}
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NEARBY_LOGS(ERROR) << "Failed to listen service on port " << port;
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return nullptr;
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}
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bool WifiHotspotMedium::StartWifiHotspot(
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HotspotCredentials* hotspot_credentials_) {
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absl::MutexLock lock(&mutex_);
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NEARBY_LOGS(INFO) << __func__ << ": Start to create WiFi Hotspot.";
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if (IsBeaconing()) {
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NEARBY_LOGS(WARNING)
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<< "Cannot create WiFi Hotspot again when it is running.";
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return true;
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}
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try {
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publisher_ = WiFiDirectAdvertisementPublisher();
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publisher_status_changed_token_ =
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publisher_.StatusChanged({this, &WifiHotspotMedium::OnStatusChanged});
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listener_ = WiFiDirectConnectionListener();
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connection_requested_token_ = listener_.ConnectionRequested(
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{this, &WifiHotspotMedium::OnConnectionRequested});
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// Normal mode: The device is highly discoverable so long as the app is in
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// the foreground.
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publisher_.Advertisement().ListenStateDiscoverability(
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WiFiDirectAdvertisementListenStateDiscoverability::Normal);
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// Enbale Autonomous GO mode
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publisher_.Advertisement().IsAutonomousGroupOwnerEnabled(true);
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// Using WIFIDirect legacy mode to create a softAP. AP means "access point".
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Prng prng;
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publisher_.Advertisement().LegacySettings().IsEnabled(true);
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std::string password = absl::StrFormat("%08x", prng.NextUint32());
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hotspot_credentials_->SetPassword(password);
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PasswordCredential creds;
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creds.Password(winrt::to_hstring(password));
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publisher_.Advertisement().LegacySettings().Passphrase(creds);
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std::string ssid = "DIRECT-" + std::to_string(prng.NextUint32());
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hotspot_credentials_->SetSSID(ssid);
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publisher_.Advertisement().LegacySettings().Ssid(winrt::to_hstring(ssid));
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publisher_.Start();
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if (publisher_.Status() ==
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WiFiDirectAdvertisementPublisherStatus::Started) {
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NEARBY_LOGS(INFO) << __func__ << ": WiFi Hotspot created and started.";
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medium_status_ |= kMediumStatusBeaconing;
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if (NearbyFlags::GetInstance().GetBoolFlag(
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platform::config_package_nearby::nearby_platform_feature::
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kEnableIntelPieSdk)) {
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WifiIntel& intel_wifi{WifiIntel::GetInstance()};
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if (intel_wifi.Start()) {
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int GO_channel = intel_wifi.GetGOChannel();
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NEARBY_LOGS(INFO)
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<< "Intel PIE enabled, Hotspot is running on channel: "
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<< GO_channel;
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intel_wifi.Stop();
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hotspot_credentials_->SetFrequency(
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WifiUtils::ConvertChannelToFrequencyMhz(GO_channel,
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WifiBandType::kUnknown));
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}
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} else {
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NEARBY_LOGS(INFO)
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<< "Intel PIE disabled, Can't extract Hotspot channel info!";
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hotspot_credentials_->SetFrequency(-1);
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}
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return true;
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}
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// Clean up when fail
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NEARBY_LOGS(ERROR) << "Windows WiFi Hotspot fails to start";
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publisher_.StatusChanged(publisher_status_changed_token_);
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listener_.ConnectionRequested(connection_requested_token_);
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listener_ = nullptr;
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publisher_ = nullptr;
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return false;
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} catch (std::exception exception) {
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NEARBY_LOGS(ERROR) << __func__ << ": Cannot start Hotspot. Exception: "
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<< exception.what();
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} catch (const winrt::hresult_error& error) {
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NEARBY_LOGS(ERROR) << __func__
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<< ": Cannot start Hotspot. WinRT exception: "
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<< error.code() << ": "
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<< winrt::to_string(error.message());
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} catch (...) {
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NEARBY_LOGS(ERROR) << __func__ << ": Unknown exeption.";
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}
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return false;
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}
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bool WifiHotspotMedium::StopWifiHotspot() {
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// Need to use Win32 API to deregister the Dnssd instance
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absl::MutexLock lock(&mutex_);
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if (!IsBeaconing()) {
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NEARBY_LOGS(WARNING) << "Cannot stop SoftAP because no SoftAP is started.";
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return true;
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}
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try {
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if (publisher_) {
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publisher_.Stop();
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listener_.ConnectionRequested(connection_requested_token_);
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publisher_.StatusChanged(publisher_status_changed_token_);
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wifi_direct_device_ = nullptr;
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listener_ = nullptr;
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publisher_ = nullptr;
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NEARBY_LOGS(INFO) << "succeeded to stop WiFi Hotspot";
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}
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medium_status_ &= (~kMediumStatusBeaconing);
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return true;
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} catch (std::exception exception) {
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NEARBY_LOGS(ERROR) << __func__ << ": Stop Hotspot failed. Exception: "
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<< exception.what();
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} catch (const winrt::hresult_error& error) {
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NEARBY_LOGS(ERROR) << __func__ << ": Stop Hotspot failed. WinRT exception: "
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<< error.code() << ": "
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<< winrt::to_string(error.message());
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} catch (...) {
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NEARBY_LOGS(ERROR) << __func__ << ": Unknown exeption.";
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}
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return false;
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}
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fire_and_forget WifiHotspotMedium::OnStatusChanged(
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WiFiDirectAdvertisementPublisher sender,
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WiFiDirectAdvertisementPublisherStatusChangedEventArgs event) {
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if (event.Status() == WiFiDirectAdvertisementPublisherStatus::Started) {
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if (sender.Advertisement().LegacySettings().IsEnabled()) {
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NEARBY_LOGS(INFO)
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<< "WiFi SoftAP SSID: "
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<< winrt::to_string(
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publisher_.Advertisement().LegacySettings().Ssid());
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NEARBY_LOGS(INFO) << "WiFi SoftAP PW: "
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<< winrt::to_string(publisher_.Advertisement()
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.LegacySettings()
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.Passphrase()
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.Password());
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}
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return winrt::fire_and_forget();
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} else if (event.Status() ==
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WiFiDirectAdvertisementPublisherStatus::Created) {
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NEARBY_LOGS(INFO) << "Receive WiFi direct/SoftAP Created event.";
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return winrt::fire_and_forget();
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} else if (event.Status() ==
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WiFiDirectAdvertisementPublisherStatus::Stopped) {
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NEARBY_LOGS(INFO) << "Receive WiFi direct/SoftAP Stopped event.";
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} else if (event.Status() ==
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WiFiDirectAdvertisementPublisherStatus::Aborted) {
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NEARBY_LOGS(INFO) << "Receive WiFi direct/SoftAP Aborted event.";
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}
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// Publisher is stopped. Need to clean up the publisher.
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{
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absl::MutexLock lock(&mutex_);
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if (publisher_ != nullptr) {
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NEARBY_LOGS(ERROR) << "Windows WiFi Hotspot cleanup.";
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listener_.ConnectionRequested(connection_requested_token_);
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publisher_.StatusChanged(publisher_status_changed_token_);
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wifi_direct_device_ = nullptr;
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listener_ = nullptr;
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publisher_ = nullptr;
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}
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}
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return winrt::fire_and_forget();
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}
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fire_and_forget WifiHotspotMedium::OnConnectionRequested(
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WiFiDirectConnectionListener const& sender,
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WiFiDirectConnectionRequestedEventArgs const& event) {
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WiFiDirectConnectionRequest connection_request = event.GetConnectionRequest();
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winrt::hstring device_name = connection_request.DeviceInformation().Name();
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NEARBY_LOGS(INFO) << "Receive connection request from: "
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<< winrt::to_string(device_name);
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try {
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// This is to solve b/236805122.
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// Problem: [Microsoft-Windows-WLAN-AutoConfig] issues a disconnection to
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// Hotspot Client every 2 minutes and stopped Hotspot eventually.
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// Solution: Creating a WiFiDirectDevice for Client’s connection request can
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// solve the problem. Guess when this object is created,
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// [Microsoft-Windows-WLAN-AutoConfig] will recognise it as a valid device
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// and won't kick it away.
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wifi_direct_device_ = WiFiDirectDevice::FromIdAsync(
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connection_request.DeviceInformation().Id())
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.get();
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NEARBY_LOGS(INFO) << "Registered the device in WLAN-AutoConfig";
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} catch (...) {
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NEARBY_LOGS(ERROR) << "Failed to registered the device in WLAN-AutoConfig";
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wifi_direct_device_ = nullptr;
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connection_request.Close();
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}
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return winrt::fire_and_forget();
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}
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bool WifiHotspotMedium::ConnectWifiHotspot(
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HotspotCredentials* hotspot_credentials_) {
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absl::MutexLock lock(&mutex_);
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try {
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if (IsConnected()) {
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NEARBY_LOGS(WARNING) << "Already connected to AP, disconnect first.";
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InternalDisconnectWifiHotspot();
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}
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auto access = WiFiAdapter::RequestAccessAsync().get();
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if (access != WiFiAccessStatus::Allowed) {
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NEARBY_LOGS(WARNING) << "Access Denied with reason: "
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<< static_cast<int>(access);
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return false;
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}
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auto adapters = WiFiAdapter::FindAllAdaptersAsync().get();
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if (adapters.Size() < 1) {
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NEARBY_LOGS(WARNING) << "No WiFi Adapter found.";
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return false;
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}
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wifi_adapter_ = adapters.GetAt(0);
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// Retrieve the current connected network's profile
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ConnectionProfile profile =
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wifi_adapter_.NetworkAdapter().GetConnectedProfileAsync().get();
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std::string ssid;
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if (profile != nullptr && profile.IsWlanConnectionProfile()) {
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ssid = winrt::to_string(
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profile.WlanConnectionProfileDetails().GetConnectedSsid());
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}
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// SoftAP is an abbreviation for "software enabled access point".
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WiFiAvailableNetwork nearby_softap{nullptr};
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bool intel_wifi_started = false;
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if (NearbyFlags::GetInstance().GetBoolFlag(
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platform::config_package_nearby::nearby_platform_feature::
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kEnableIntelPieSdk)) {
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auto channel = WifiUtils::ConvertFrequencyMhzToChannel(
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hotspot_credentials_->GetFrequency());
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WifiIntel& intel_wifi{WifiIntel::GetInstance()};
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intel_wifi_started = intel_wifi.Start();
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if (intel_wifi_started) {
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intel_wifi.SetScanFilter(channel);
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}
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}
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NEARBY_LOGS(INFO) << "Scanning for Nearby Hotspot SSID: "
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<< hotspot_credentials_->GetSSID();
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// First time scan may not find our target hotspot, try 2 more times can
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// almost guarantee to find the Hotspot
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wifi_adapter_.ScanAsync().get();
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wifi_connected_network_ = nullptr;
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int64_t wifi_hotspot_max_scans = NearbyFlags::GetInstance().GetInt64Flag(
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platform::config_package_nearby::nearby_platform_feature::
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kWifiHotspotScanMaxRetries);
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int i;
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for (i = 0; i < wifi_hotspot_max_scans; i++) {
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for (const auto& network :
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wifi_adapter_.NetworkReport().AvailableNetworks()) {
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if (!wifi_connected_network_ && !ssid.empty() &&
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(winrt::to_string(network.Ssid()) == ssid)) {
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wifi_connected_network_ = network;
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NEARBY_LOGS(INFO) << "Save the current connected network: " << ssid;
|
||
} else if (!nearby_softap && winrt::to_string(network.Ssid()) ==
|
||
hotspot_credentials_->GetSSID()) {
|
||
NEARBY_LOGS(INFO)
|
||
<< "Found Nearby SSID: " << winrt::to_string(network.Ssid());
|
||
nearby_softap = network;
|
||
}
|
||
if (nearby_softap && (ssid.empty() || wifi_connected_network_)) break;
|
||
}
|
||
if (nearby_softap) break;
|
||
NEARBY_LOGS(INFO) << "Scan ... ";
|
||
wifi_adapter_.ScanAsync().get();
|
||
}
|
||
NEARBY_LOGS(INFO) << "Finish scanning "
|
||
<< (nearby_softap ? "successfully" : "failed") << " with "
|
||
<< i+1 << " times trying.";
|
||
|
||
if (intel_wifi_started) {
|
||
WifiIntel& intel_wifi{WifiIntel::GetInstance()};
|
||
intel_wifi.ResetScanFilter();
|
||
intel_wifi.Stop();
|
||
}
|
||
|
||
if (!nearby_softap) {
|
||
NEARBY_LOGS(INFO) << "Hotspot is not found";
|
||
return false;
|
||
}
|
||
PasswordCredential creds;
|
||
creds.Password(winrt::to_hstring(hotspot_credentials_->GetPassword()));
|
||
|
||
auto connect_result =
|
||
wifi_adapter_
|
||
.ConnectAsync(nearby_softap, WiFiReconnectionKind::Manual, creds)
|
||
.get();
|
||
|
||
if (connect_result == nullptr ||
|
||
connect_result.ConnectionStatus() != WiFiConnectionStatus::Success) {
|
||
NEARBY_LOGS(INFO) << "Connecting failed with reason: "
|
||
<< static_cast<int>(connect_result.ConnectionStatus());
|
||
RestoreWifiConnection();
|
||
return false;
|
||
}
|
||
|
||
// Make sure IP address is ready.
|
||
std::string ip_address;
|
||
int64_t ip_address_max_retries = NearbyFlags::GetInstance().GetInt64Flag(
|
||
platform::config_package_nearby::nearby_platform_feature::
|
||
kWifiHotspotCheckIpMaxRetries);
|
||
int64_t ip_address_retry_interval_millis =
|
||
NearbyFlags::GetInstance().GetInt64Flag(
|
||
platform::config_package_nearby::nearby_platform_feature::
|
||
kWifiHotspotCheckIpIntervalMillis);
|
||
NEARBY_LOGS(INFO) << "maximum IP check retries=" << ip_address_max_retries
|
||
<< ", IP check interval="
|
||
<< ip_address_retry_interval_millis << "ms";
|
||
for (int i = 0; i < ip_address_max_retries; i++) {
|
||
NEARBY_LOGS(INFO) << "Check IP address at attemp " << i;
|
||
std::vector<std::string> ip_addresses = GetIpv4Addresses();
|
||
if (ip_addresses.empty()) {
|
||
Sleep(ip_address_retry_interval_millis);
|
||
continue;
|
||
}
|
||
ip_address = ip_addresses[0];
|
||
break;
|
||
}
|
||
|
||
if (ip_address.empty()) {
|
||
NEARBY_LOGS(INFO) << "Failed to get IP address from hotspot.";
|
||
return false;
|
||
}
|
||
|
||
NEARBY_LOGS(INFO) << "Got IP address " << ip_address << " from hotspot.";
|
||
|
||
std::string last_ssid = hotspot_credentials_->GetSSID();
|
||
medium_status_ |= kMediumStatusConnected;
|
||
NEARBY_LOGS(INFO) << "Connected to hotspot: " << last_ssid;
|
||
|
||
return true;
|
||
} catch (std::exception exception) {
|
||
NEARBY_LOGS(ERROR) << __func__ << ": Cannot connet to Hotspot. Exception: "
|
||
<< exception.what();
|
||
} catch (const winrt::hresult_error& error) {
|
||
NEARBY_LOGS(ERROR) << __func__
|
||
<< ": Cannot connet to Hotspot. WinRT exception: "
|
||
<< error.code() << ": "
|
||
<< winrt::to_string(error.message());
|
||
} catch (...) {
|
||
NEARBY_LOGS(ERROR) << __func__ << ": Unknown exeption.";
|
||
}
|
||
return false;
|
||
}
|
||
|
||
void WifiHotspotMedium::RestoreWifiConnection() {
|
||
if (!wifi_connected_network_ && wifi_adapter_) {
|
||
wifi_adapter_.Disconnect();
|
||
return;
|
||
}
|
||
if (wifi_adapter_) {
|
||
ConnectionProfile profile =
|
||
wifi_adapter_.NetworkAdapter().GetConnectedProfileAsync().get();
|
||
std::string ssid;
|
||
|
||
if (profile != nullptr && profile.IsWlanConnectionProfile()) {
|
||
ssid = winrt::to_string(
|
||
profile.WlanConnectionProfileDetails().GetConnectedSsid());
|
||
if (!ssid.empty() &&
|
||
(winrt::to_string(wifi_connected_network_.Ssid()) == ssid)) {
|
||
NEARBY_LOGS(INFO) << "Already conneted to the previous WIFI network "
|
||
<< ssid << "! Skip restoration.";
|
||
return;
|
||
}
|
||
}
|
||
|
||
// Disconnect to the WiFi connection through the WiFi adapter.
|
||
wifi_adapter_.Disconnect();
|
||
NEARBY_LOGS(INFO) << "Disconnected to current network.";
|
||
|
||
auto connect_result = wifi_adapter_
|
||
.ConnectAsync(wifi_connected_network_,
|
||
WiFiReconnectionKind::Automatic)
|
||
.get();
|
||
|
||
if (connect_result == nullptr ||
|
||
connect_result.ConnectionStatus() != WiFiConnectionStatus::Success) {
|
||
NEARBY_LOGS(INFO) << "Connecting to previous network failed with reason: "
|
||
<< static_cast<int>(connect_result.ConnectionStatus());
|
||
} else {
|
||
NEARBY_LOGS(INFO) << "Restored the previous WIFI connection: "
|
||
<< winrt::to_string(wifi_connected_network_.Ssid());
|
||
}
|
||
wifi_connected_network_ = nullptr;
|
||
}
|
||
}
|
||
|
||
bool WifiHotspotMedium::DisconnectWifiHotspot() {
|
||
absl::MutexLock lock(&mutex_);
|
||
try {
|
||
return InternalDisconnectWifiHotspot();
|
||
} catch (std::exception exception) {
|
||
NEARBY_LOGS(ERROR) << __func__ << ": Stop Hotspot failed. Exception: "
|
||
<< exception.what();
|
||
} catch (const winrt::hresult_error& error) {
|
||
NEARBY_LOGS(ERROR) << __func__ << ": Stop Hotspot failed. WinRT exception: "
|
||
<< error.code() << ": "
|
||
<< winrt::to_string(error.message());
|
||
} catch (...) {
|
||
NEARBY_LOGS(ERROR) << __func__ << ": Unknown exeption.";
|
||
}
|
||
return false;
|
||
}
|
||
|
||
bool WifiHotspotMedium::InternalDisconnectWifiHotspot() {
|
||
if (!IsConnected()) {
|
||
NEARBY_LOGS(WARNING)
|
||
<< "Cannot disconnect SoftAP because it is not connected.";
|
||
return true;
|
||
}
|
||
|
||
if (wifi_adapter_) {
|
||
// Gets connected WiFi profile.
|
||
auto profile =
|
||
wifi_adapter_.NetworkAdapter().GetConnectedProfileAsync().get();
|
||
|
||
// Disconnect to the WiFi connection through the WiFi adapter.
|
||
RestoreWifiConnection();
|
||
wifi_adapter_ = nullptr;
|
||
|
||
// Try to remove the WiFi profile
|
||
if (profile != nullptr && profile.CanDelete() &&
|
||
profile.IsWlanConnectionProfile()) {
|
||
std::string ssid = winrt::to_string(
|
||
profile.WlanConnectionProfileDetails().GetConnectedSsid());
|
||
|
||
auto profile_delete_status = profile.TryDeleteAsync().get();
|
||
switch (profile_delete_status) {
|
||
case ConnectionProfileDeleteStatus::Success:
|
||
NEARBY_LOGS(INFO)
|
||
<< "WiFi profile with SSID:" << ssid << " is deleted.";
|
||
break;
|
||
case ConnectionProfileDeleteStatus::DeniedBySystem:
|
||
NEARBY_LOGS(ERROR)
|
||
<< "Failed to delete WiFi profile with SSID:" << ssid
|
||
<< " due to denied by system.";
|
||
break;
|
||
case ConnectionProfileDeleteStatus::DeniedByUser:
|
||
NEARBY_LOGS(ERROR)
|
||
<< "Failed to delete WiFi profile with SSID:" << ssid
|
||
<< " due to denied by user.";
|
||
break;
|
||
case ConnectionProfileDeleteStatus::UnknownError:
|
||
NEARBY_LOGS(ERROR)
|
||
<< "Failed to delete WiFi profile with SSID:" << ssid
|
||
<< " due to unknonw error.";
|
||
break;
|
||
default:
|
||
break;
|
||
}
|
||
}
|
||
}
|
||
|
||
medium_status_ &= (~kMediumStatusConnected);
|
||
return true;
|
||
}
|
||
|
||
std::string WifiHotspotMedium::GetErrorMessage(std::exception_ptr eptr) {
|
||
try {
|
||
if (eptr) {
|
||
std::rethrow_exception(eptr);
|
||
} else {
|
||
return "";
|
||
}
|
||
} catch (const std::exception& e) {
|
||
return e.what();
|
||
}
|
||
}
|
||
|
||
} // namespace windows
|
||
} // namespace nearby
|