public async Task <bool> HasService(RfcommServiceId serviceId, ushort sdpServiceNameAttributeId)
{
var rfcommServices = await m_btDevice.GetRfcommServicesForIdAsync(
serviceId,
BluetoothCacheMode.Uncached);
if (rfcommServices.Services.Count == 0)
{
// Could not discover the service on the remote device
return(false);
}
var m_frCommService = rfcommServices.Services[0];
var attributes = await m_frCommService.GetSdpRawAttributesAsync();
if (!attributes.ContainsKey(sdpServiceNameAttributeId))
{
// The service is using an unexpected format for the Service Name attribute.
return(false);
}
var attributeReader = DataReader.FromBuffer(attributes[sdpServiceNameAttributeId]);
attributeReader.UnicodeEncoding = Windows.Storage.Streams.UnicodeEncoding.Utf8;
var serviceNameLength = attributeReader.ReadByte();
var serviceName = attributeReader.ReadString(serviceNameLength);
return(serviceName == BluetoothMessageOrchestrator.SdpServiceName);
}
private async void Connect_Click(object sender, RoutedEventArgs e)
{
string aqs = RfcommDeviceService.GetDeviceSelector(RfcommServiceId.FromUuid(App.ChatServiceID));
DevicePicker picker = new DevicePicker();
picker.Appearance.BackgroundColor = Color.FromArgb(0xff, 0, 0x33, 0x33);
picker.Appearance.ForegroundColor = Colors.White;
picker.Appearance.AccentColor = Colors.Goldenrod;
// add our query string
picker.Filter.SupportedDeviceSelectors.Add(aqs);
// prompt user to select a single device
DeviceInformation dev = await picker.PickSingleDeviceAsync(new Rect());
if (dev != null)
{
remoteService = await RfcommDeviceService.FromIdAsync(dev.Id);
if (remoteService != null)
{
InputText.IsEnabled = true;
}
}
}
private async Task RegisterBand()
{
bool backgroundRegistered = false;
var bandInfo = (await BandClientManager.Instance.GetBandsAsync()).FirstOrDefault();
var consentGranted = await GetConsentForHeartRate(bandInfo);
if (consentGranted.HasValue && consentGranted.Value)
{
// The Guid used for the RfcommServiceId is from the Package.appxmanifest.
var device =
(await
DeviceInformation.FindAllAsync(
RfcommDeviceService.GetDeviceSelector(
RfcommServiceId.FromUuid(new Guid("A502CA9A-2BA5-413C-A4E0-13804E47B38F")))))
.FirstOrDefault(x => x.Name == bandInfo.Name);
backgroundRegistered = device != null &&
await
BackgroundTaskProvider.RegisterBandDataTask(
typeof(BandDataTask).FullName,
device.Id);
}
if (backgroundRegistered)
{
var success =
new MessageDialog(
"The BandDataTask has been registered successfully and the app can be closed.",
"Background task registered");
success.Commands.Add(new UICommand("Ok", command => { this.IsBandRegistered = true; }));
await success.ShowAsync();
}
else
{
MessageDialog error;
if (consentGranted.HasValue && !consentGranted.Value)
{
error =
new MessageDialog(
"The BandDataTask was not registered as you have rejected consent to access the heart rate sensor. Please try again.",
"Background task not registered");
}
else
{
error =
new MessageDialog(
"The BandDataTask was not registered successfully. Check your Microsoft Band is connected and try again.",
"Background task not registered");
}
error.Commands.Add(new UICommand("Ok", command => { }));
await error.ShowAsync();
}
}
private async void RunButton_Click(object sender, RoutedEventArgs e)
{
// Clear any previous messages
MainPage.Current.NotifyUser("", NotifyType.StatusMessage);
// Find all paired instances of the Rfcomm chat service
chatServiceInfoCollection = await DeviceInformation.FindAllAsync(
RfcommDeviceService.GetDeviceSelector(RfcommServiceId.FromUuid(RfcommChatServiceUuid)));
if (chatServiceInfoCollection.Count > 0)
{
List <string> items = new List <string>();
foreach (var chatServiceInfo in chatServiceInfoCollection)
{
items.Add(chatServiceInfo.Name);
}
cvs.Source = items;
ServiceSelector.Visibility = Windows.UI.Xaml.Visibility.Visible;
}
else
{
MainPage.Current.NotifyUser(
"No chat services were found. Please pair with a device that is advertising the chat service.",
NotifyType.ErrorMessage);
}
}
private async System.Threading.Tasks.Task MakeDiscoverable()
{
// Make the system discoverable. Don'd repeatedly do this or the StartAdvertising will throw "cannot create a file when that file already exists"
if (!App.IsBluetoothDiscoverable)
{
Guid BluetoothServiceUuid = new Guid("17890000-0068-0069-1532-1992D79BE4D8");
try
{
provider = await RfcommServiceProvider.CreateAsync(RfcommServiceId.FromUuid(BluetoothServiceUuid));
Windows.Networking.Sockets.StreamSocketListener listener = new Windows.Networking.Sockets.StreamSocketListener();
listener.ConnectionReceived += OnConnectionReceived;
await listener.BindServiceNameAsync(provider.ServiceId.AsString(), Windows.Networking.Sockets.SocketProtectionLevel.PlainSocket);
// SocketProtectionLevel.BluetoothEncryptionAllowNullAuthentication);
// Don't bother setting SPD attributes
provider.StartAdvertising(listener, true);
App.IsBluetoothDiscoverable = true;
}
catch (Exception e)
{
string formatString = BluetoothDeviceInformationDisplay.GetResourceString("BluetoothNoDeviceAvailableFormat");
string confirmationMessage = string.Format(formatString, e.Message);
DisplayMessagePanelAsync(confirmationMessage, MessageType.InformationalMessage);
}
}
}
/// <summary>
/// Initializes the server using RfcommServiceProvider to advertise the Chat Service UUID and start listening
/// for incoming connections.
/// </summary>
private async void InitializeServer()
{
try
{
rfcommProvider = await RfcommServiceProvider.CreateAsync(RfcommServiceId.FromUuid(RfcommChatServiceUuid));
}
// Catch exception HRESULT_FROM_WIN32(ERROR_DEVICE_NOT_AVAILABLE).
catch (Exception ex) when((uint)ex.HResult == 0x800710DF)
{
// The Bluetooth radio may be off.
throw new InvalidOperationException("Make sure your Bluetooth Radio is on: " + ex.Message, ex);
}
// Create a listener for this service and start listening
socketListener = new StreamSocketListener();
socketListener.ConnectionReceived += OnConnectionReceived;
var rfcomm = rfcommProvider.ServiceId.AsString();
await socketListener.BindServiceNameAsync(rfcommProvider.ServiceId.AsString(),
SocketProtectionLevel.BluetoothEncryptionAllowNullAuthentication);
// Set the SDP attributes and start Bluetooth advertising
InitializeServiceSdpAttributes(rfcommProvider);
try
{
rfcommProvider.StartAdvertising(socketListener, true);
}
catch (Exception e)
{
// If you aren't able to get a reference to an RfcommServiceProvider, tell the user why. Usually throws an exception if user changed their privacy settings to prevent Sync w/ Devices.
throw new Exception(e.Message);
}
}
//-----------------private functions----------------------------//
private async void loadBluetoothPeers()
{
_rfcommDevices = await DeviceInformation.FindAllAsync(
RfcommDeviceService.GetDeviceSelector(RfcommServiceId.FromUuid(RfcommChatServiceUuid)));
if (_rfcommDevices.Count > 0)
{
List <string> peerNames = new List <string>();
foreach (var chatServiceInfo in _rfcommDevices)
{
peerNames.Add(chatServiceInfo.Name);
}
_selectBluetoothPeerBox.ItemsSource = peerNames;
if (ApplicationData.Current.LocalSettings.Values.ContainsKey("obd"))
{
String obdPeerId = ApplicationData.Current.LocalSettings.Values["obd"].ToString();
int i = 0;
foreach (var chatServiceInfo in _rfcommDevices)
{
if (chatServiceInfo.Id == obdPeerId)
{
_selectBluetoothPeerBox.SelectedIndex = i;
}
i++;
}
}
_connectButton.IsEnabled = true;
}
}
/// <summary>
/// Bluetooth device picker를 열고 시리얼 포트의 서비스에서 스트림을 여는 것을 시도합니다.
/// </summary>
private static Stream OpenBluetoothStream(DeviceInformation deviceInformation, RfcommServiceId serviceId)
{
//서비스 받아오기
var device = BluetoothDevice.FromDeviceInformation(deviceInformation);
var result = device.GetRfcommServices(BluetoothCacheMode.Cached);
var services = result.Services;
//print(serviceId);
//요청한 서비스를 찾고 접속합니다.
for (int i = 0; i < services.Count; ++i)
{
print(services[0].ServiceId.Uuid);
print(services[1].ServiceId.Uuid);
print(services.Count);
var current = services[i];
if (current.ServiceId == serviceId)
{
return(current.OpenStream());
}
}
return(null);
}
public static async Task <string> RegisterBackgroundTask(Guid uuid, string serviceName, string serviceDescriptor)
{
System.Diagnostics.Debug.WriteLine("RegisterBackgroundTask");
try
{
// Applications registering for background trigger must request for permission.
BackgroundAccessStatus backgroundAccessStatus = await BackgroundExecutionManager.RequestAccessAsync();
BackgroundTaskBuilder backgroundTaskBuilder = new BackgroundTaskBuilder();
backgroundTaskBuilder.Name = BackgroundTaskName;
backgroundTaskBuilder.TaskEntryPoint = BackgroundTaskEntryPoint;
RfcommConnectionTrigger trigger = new RfcommConnectionTrigger();
trigger.InboundConnection.LocalServiceId = RfcommServiceId.FromUuid(uuid);
// TODO: helper function to create sdpRecordBlob
trigger.InboundConnection.SdpRecord = getsdpRecordBlob(serviceName, serviceDescriptor);
//backgroundTaskBuilder.SetTrigger(new SystemTrigger(SystemTriggerType.TimeZoneChange, false));
backgroundTaskBuilder.SetTrigger(trigger);
BackgroundTaskRegistration backgroundTaskRegistration = backgroundTaskBuilder.Register();
}
catch (Exception e)
{
System.Diagnostics.Debug.WriteLine("ERROR: Accessing your device failed." + Environment.NewLine + e.Message);
return("ERROR: Accessing your device failed." + Environment.NewLine + e.Message);
}
return(null);
}
/// <summary>
/// Initialize a server socket listening for incoming Bluetooth Rfcomm connections
/// </summary>
async void InitializeRfcommServer()
{
try
{
ListenButton.IsEnabled = false;
DisconnectButton.IsEnabled = true;
rfcommProvider = await RfcommServiceProvider.CreateAsync(
RfcommServiceId.FromUuid(RfcommChatServiceUuid));
// Create a listener for this service and start listening
socketListener = new StreamSocketListener();
socketListener.ConnectionReceived += OnConnectionReceived;
await socketListener.BindServiceNameAsync(rfcommProvider.ServiceId.AsString(),
SocketProtectionLevel.BluetoothEncryptionAllowNullAuthentication);
// Set the SDP attributes and start Bluetooth advertising
InitializeServiceSdpAttributes(rfcommProvider);
rfcommProvider.StartAdvertising(socketListener);
NotifyStatus("Listening for incoming connections");
}
catch (Exception e)
{
NotifyError(e);
}
}
/// <summary>
/// When the user presses the "Start" button, check to see if any of the currently paired devices support the Rfcomm chat service and display them in a list.
/// Note that in this case, the other device must be running the Rfcomm Chat Server before being paired.
/// </summary>
/// <param name="sender">Instance that triggered the event.</param>
/// <param name="e">Event data describing the conditions that led to the event.</param>
private async void StartButton_Click(object sender, RoutedEventArgs e)
{
StartButton.IsEnabled = false;
// Find all paired instances of the Rfcomm chat service and display them in a list
chatServiceDeviceCollection = await DeviceInformation.FindAllAsync(
RfcommDeviceService.GetDeviceSelector(RfcommServiceId.FromUuid(Constants.RfcommChatServiceUuid)));
if (chatServiceDeviceCollection.Count > 0)
{
DeviceList.Items.Clear();
foreach (var chatServiceDevice in chatServiceDeviceCollection)
{
DeviceList.Items.Add(chatServiceDevice.Name);
}
NotifyUser("Select a device.", NotifyType.StatusMessage);
}
else
{
NotifyUser(
"No chat services were found. Please pair with a device that is advertising the chat service.",
NotifyType.ErrorMessage);
}
StartButton.IsEnabled = true;
}
/// <summary>
/// RfcommServerの初期化
/// </summary>
private async void InitializeRfcommServer()
{
//UUIDを定義
Guid RfcommChatServiceUuid = Guid.Parse("17fcf242-f86d-4e35-805e-546ee3040b84");
//UUIDからRfcommProviderをイニシャライズ
rfcommProvider = await RfcommServiceProvider.CreateAsync(RfcommServiceId.FromUuid(RfcommChatServiceUuid));
// SocketListenerを生成，OnConnectionReceivedをコールバックとして登録
socketListener = new StreamSocketListener();
socketListener.ConnectionReceived += OnConnectionReceived;
// Listeningをスタート
//
//awaitはasyncキーワードによって変更された非同期メソッドでのみ使用でる.
//中断ポイントを挿入することで,メソッドの実行を,待機中のタスクが完了するまで中断する
//async修飾子を使用して定義され,通常1つ以上のawait式を含むメソッドが,"非同期メソッド"と呼る
await socketListener.BindServiceNameAsync(rfcommProvider.ServiceId.AsString(),
SocketProtectionLevel.BluetoothEncryptionAllowNullAuthentication);
//SDP属性を設定し，そのSDPレコードを他のデバイスが検索できるようにアドバタイズする
//
//SDP(Session Description Protcol):
//セッションの告知・招待などを必要とするマルチメディアセッションを開始するため
//必要な情報を記述するためのプレゼンテーション層に属するプロトコル
InitializeServiceSdpAttributes(rfcommProvider);
rfcommProvider.StartAdvertising(socketListener, true);
}
async void InitializeBluetooth()
{
try
{
var service_id = RfcommServiceId.FromUuid(Guid.Parse("ff1477c2-7265-4d55-bb08-c3c32c6d635c"));
provider = await RfcommServiceProvider.CreateAsync(service_id);
StreamSocketListener listener = new StreamSocketListener();
listener.ConnectionReceived += OnConnectionReceived;
await listener.BindServiceNameAsync(
provider.ServiceId.AsString(),
SocketProtectionLevel.BluetoothEncryptionAllowNullAuthentication);
// InitializeServiceSdpAttributes
var writer = new Windows.Storage.Streams.DataWriter();
writer.WriteByte(SERVICE_VERSION_ATTRIBUTE_TYPE);
writer.WriteUInt32(SERVICE_VERSION);
var data = writer.DetachBuffer();
provider.SdpRawAttributes.Add(SERVICE_VERSION_ATTRIBUTE_ID, data);
provider.StartAdvertising(listener, true);
}
catch (Exception error)
{
Debug.WriteLine(error.ToString());
}
}
public async void StartBroadcast(NetworkController netctl)
{
this.netctl = netctl;
try
{
commServiceProvider = await RfcommServiceProvider.CreateAsync(RfcommServiceId.FromUuid(Constants.Constants.broadcastGuid));
listener = new StreamSocketListener();
listener.ConnectionReceived += RecieveConnection;
var rfcomm = commServiceProvider.ServiceId.AsString();
await listener.BindServiceNameAsync(commServiceProvider.ServiceId.AsString(), SocketProtectionLevel.BluetoothEncryptionAllowNullAuthentication);
Logging.Log.Trace("Initializing Session Description Protocal (SDP) Attributes");
SetupBroadcastAttributes(commServiceProvider);
Logging.Log.Trace("SDP Attributes Initialized");
commServiceProvider.StartAdvertising(listener, true);
}
catch (Exception ex)
{
Logging.Log.Error("An error occured advertising the bluetooth connection");
Logging.Log.Error(ex.Message);
return;
}
Console.WriteLine("Broadcasting Connections.");
}
public override async void Initialize()
{
System.Diagnostics.Debug.WriteLine("Initializing the Server.");
try {
rfcommProvider = await RfcommServiceProvider.CreateAsync(RfcommServiceId.FromUuid(Constants.RfcommChatServiceUuid));
} // Catch exception HRESULT_FROM_WIN32(ERROR_DEVICE_NOT_AVAILABLE).
catch (Exception ex) when((uint)ex.HResult == 0x800710DF) // The Bluetooth radio may be off.
{
System.Diagnostics.Debug.WriteLine("Could not initialize RfcommServiceProvider");
return;
}
// Create a listener for this service and start listening
socketListener = new StreamSocketListener();
socketListener.ConnectionReceived += OnConnectionReceived;
await socketListener.BindServiceNameAsync(rfcommProvider.ServiceId.AsString(),
SocketProtectionLevel.BluetoothEncryptionAllowNullAuthentication);
// Set the SDP attributes and start Bluetooth advertising
InitializeServiceSdpAttributes(rfcommProvider);
try {
rfcommProvider.StartAdvertising(socketListener, true);
} catch (Exception e) {
// If you aren't able to get a reference to an RfcommServiceProvider, tell the user why. Usually throws an exception if user changed their privacy settings to prevent Sync w/ Devices.
System.Diagnostics.Debug.WriteLine("Could not start advertising");
return;
}
System.Diagnostics.Debug.WriteLine("Server Succesfully Initialized.");
}
/// <summary>
/// When the user presses the run button, check to see if any of the currently paired devices support the Rfcomm chat service and display them in a list.
/// Note that in this case, the other device must be running the Rfcomm Chat Server before being paired.
/// </summary>
/// <param name="sender">Instance that triggered the event.</param>
/// <param name="e">Event data describing the conditions that led to the event.</param>
private async void RunButton_Click(object sender, RoutedEventArgs e)
{
var button = sender as Button;
// Disable the button while we do async operations so the user can't Run twice.
button.IsEnabled = false;
// Clear any previous messages
rootPage.NotifyUser("", NotifyType.StatusMessage);
// Find all paired instances of the Rfcomm chat service and display them in a list
chatServiceDeviceCollection = await DeviceInformation.FindAllAsync(
RfcommDeviceService.GetDeviceSelector(RfcommServiceId.FromUuid(Constants.RfcommChatServiceUuid)));
if (chatServiceDeviceCollection.Count > 0)
{
DeviceList.Items.Clear();
foreach (var chatServiceDevice in chatServiceDeviceCollection)
{
DeviceList.Items.Add(chatServiceDevice.Name);
}
DeviceList.Visibility = Windows.UI.Xaml.Visibility.Visible;
}
else
{
rootPage.NotifyUser(
"No chat services were found. Please pair with a device that is advertising the chat service.",
NotifyType.ErrorMessage);
}
button.IsEnabled = true;
}
/// <summary>
/// Make this device discoverable to other Bluetooth devices within range
/// </summary>
/// <returns></returns>
private async Task <bool> MakeDiscoverable()
{
// Make the system discoverable. Don't repeatedly do this or the StartAdvertising will throw "cannot create a file when that file already exists."
if (!_isBluetoothDiscoverable)
{
try
{
Guid BluetoothServiceUuid = new Guid(Constants.BluetoothServiceUuid);
_provider = await RfcommServiceProvider.CreateAsync(RfcommServiceId.FromUuid(BluetoothServiceUuid));
StreamSocketListener listener = new StreamSocketListener();
listener.ConnectionReceived += OnConnectionReceived;
await listener.BindServiceNameAsync(_provider.ServiceId.AsString(), SocketProtectionLevel.PlainSocket);
// No need to set SPD attributes
_provider.StartAdvertising(listener, true);
_isBluetoothDiscoverable = true;
}
catch (Exception ex)
{
string confirmationMessage = string.Format(BluetoothNoDeviceAvailableFormat, ex.Message);
await DisplayMessagePanel(confirmationMessage, MessageType.InformationalMessage);
}
}
return(_isBluetoothDiscoverable);
}
public static async Task <StreamSocket> Connect(BluetoothDevice bluetoothDevice)
{
Check.IsNull(bluetoothDevice);
var serviceGuid = Guid.Parse("34B1CF4D-1069-4AD6-89B6-E161D79BE4D8");
var rfcommServices = await bluetoothDevice.GetRfcommServicesForIdAsync(RfcommServiceId.FromUuid(serviceGuid), BluetoothCacheMode.Uncached);
var rfcommService = bluetoothDevice.RfcommServices.FirstOrDefault();
for (int i = 0; i < bluetoothDevice.RfcommServices.Count; i++)
{
rfcommService = bluetoothDevice.RfcommServices.ElementAt(i);
if (rfcommService.ServiceId.Uuid.Equals(serviceGuid))
{
break;
}
}
if (rfcommService != null)
{
return(await ConnectToStreamSocket(bluetoothDevice,
rfcommService.ConnectionServiceName));
}
else
{
throw new Exception(
"Selected bluetooth device does not advertise any RFCOMM service");
}
}
//-------------------------------------------------------------------------uruchamianie serwera
async private void startServer()
{
try
{
rfcommProvider = await RfcommServiceProvider.CreateAsync(
RfcommServiceId.FromUuid(serviceUuid));
}
catch (Exception e)
{
if ((uint)e.HResult == 0x9000000F)
{
disconnect();
System.Diagnostics.Debug.WriteLine(e.StackTrace);
showPopupDialog("Bluetooth jest wyłączone!\nPowrót");
return;
}
}
socketListener = new StreamSocketListener();
socketListener.ConnectionReceived += OnConnectionReceived;
await socketListener.BindServiceNameAsync(rfcommProvider.ServiceId.AsString());
var sdpWriter = new DataWriter();
sdpWriter.WriteByte(SdpServiceNameAttributeType);
sdpWriter.WriteByte((byte)SdpServiceName.Length);
sdpWriter.UnicodeEncoding = Windows.Storage.Streams.UnicodeEncoding.Utf8;
sdpWriter.WriteString(SdpServiceName);
rfcommProvider.SdpRawAttributes.Add(SdpServiceNameAttributeId, sdpWriter.DetachBuffer());
rfcommProvider.StartAdvertising(socketListener);
}
public async void InitializeRfCommServer()
{
try
{
Console.WriteLine("Starting Serwer..");
rfcommProvider = await RfcommServiceProvider.CreateAsync(RfcommServiceId.FromUuid(RfcommServiceUuid));
// Create a listener for this service and start listening
socketListener = new StreamSocketListener();
socketListener.ConnectionReceived += OnConnectionReceived;
await socketListener.BindServiceNameAsync(
rfcommProvider.ServiceId.AsString(),
SocketProtectionLevel.PlainSocket
);
// Set the SDP attributes and start Bluetooth advertising
InitializeServiceSdpAttributes(rfcommProvider);
rfcommProvider.StartAdvertising(socketListener);
ServerInitiated = true;
Console.WriteLine("Server initialized..");
}
catch (Exception e)
{
Console.WriteLine(e.Message);
ServerInitiated = false;
}
}
/// <summary>
/// When the user presses the run button, check to see if any of the currently paired devices support the Rfcomm chat service and display them in a list.
/// Note that in this case, the other device must be running the Rfcomm Chat Server before being paired.
/// </summary>
/// <param name="sender">Instance that triggered the event.</param>
/// <param name="e">Event data describing the conditions that led to the event.</param>
public async void Run()
{
// Find all paired instances of the Rfcomm chat service and display them in a list
RfcommServiceId serid = RfcommServiceId.FromUuid(Constants.RfcommChatServiceUuid);
string stsel = RfcommDeviceService.GetDeviceSelector(serid);
string stsel1 = "System.Devices.InterfaceClassGuid:=\"{B142FC3E-FA4E-460B-8ABC-072B628B3C70}\" AND System.DeviceInterface.Bluetooth.ServiceGuid:=\"{34B1CF4D-1069-4AD6-89B6-E161D79BE4D8}\"";
string stsel2 = "System.Devices.InterfaceClassGuid:=\"{B142FC3E-FA4E-460B-8ABC-072B628B3C70}\"";
string stsel3 = "";
chatServiceDeviceCollection = await DeviceInformation.FindAllAsync(stsel);
int i = 0;
if (chatServiceDeviceCollection.Count > 0)
{
//DeviceList.Items.Clear();
foreach (var chatServiceDevice in chatServiceDeviceCollection)
{
//if (chatServiceDevice.Name == "BAKULEV-X240")
{
//DeviceList.Items.Add(chatServiceDevice.Name + " " + chatServiceDevice.Id);
i++;
}
}
//DeviceList.Visibility = Windows.UI.Xaml.Visibility.Visible;
SelectDevice(0); //bakulev
}
else
{
//rootPage.NotifyUser(
// "No chat services were found. Please pair with a device that is advertising the chat service.",
// NotifyType.ErrorMessage);
}
}
public static async Task <StreamSocketConnection> ConnectAsync(Guid serviceUuid, IObjectSerializer serializer)
{
// Find all paired instances of the Rfcomm service
var serviceId = RfcommServiceId.FromUuid(serviceUuid);
var deviceSelector = RfcommDeviceService.GetDeviceSelector(serviceId);
var devices = await DeviceInformation.FindAllAsync(deviceSelector);
if (devices.Count > 0)
{
var device = devices.First(); // TODO
var deviceService = await RfcommDeviceService.FromIdAsync(device.Id);
if (deviceService == null)
{
// Access to the device is denied because the application was not granted access
return(null);
}
var attributes = await deviceService.GetSdpRawAttributesAsync();
IBuffer serviceNameAttributeBuffer;
if (!attributes.TryGetValue(SdpServiceNameAttributeId, out serviceNameAttributeBuffer))
{
// The service is not advertising the Service Name attribute (attribute id = 0x100).
// Please verify that you are running a BluetoothConnectionListener.
return(null);
}
using (var attributeReader = DataReader.FromBuffer(serviceNameAttributeBuffer))
{
var attributeType = attributeReader.ReadByte();
if (attributeType != SdpServiceNameAttributeType)
{
// The service is using an unexpected format for the Service Name attribute.
// Please verify that you are running a BluetoothConnectionListener.
return(null);
}
var serviceNameLength = attributeReader.ReadByte();
// The Service Name attribute requires UTF-8 encoding.
attributeReader.UnicodeEncoding = UnicodeEncoding.Utf8;
var serviceName = attributeReader.ReadString(serviceNameLength);
var socket = new StreamSocket();
await socket.ConnectAsync(deviceService.ConnectionHostName, deviceService.ConnectionServiceName);
var connection = await StreamSocketConnection.ConnectAsync(socket, serializer);
return(connection);
}
}
// No devices found
return(null);
}
public Scenario3_BgChatServer()
{
this.InitializeComponent();
trigger = new RfcommConnectionTrigger();
trigger.InboundConnection.LocalServiceId = RfcommServiceId.FromUuid(Constants.RfcommChatServiceUuid);
// TODO: helper function to create sdpRecordBlob
trigger.InboundConnection.SdpRecord = sdpRecordBlob.AsBuffer();
}
public static IAsyncOperation <DeviceInformationCollection> getDeviceInfo(Guid guid)
{
return(AsyncInfo.Run((token) => {
return Task.Run(async() => {
var dev = RfcommDeviceService.GetDeviceSelector(RfcommServiceId.FromUuid(guid));
return await DeviceInformation.FindAllAsync(dev);
});
}));
}
GetRfcommDeviceServiceForHostFromUuid(HostName host, Guid uuid)
{
RfcommServiceId id;
BluetoothDevice device;
id = RfcommServiceId.FromUuid(uuid);
device = await BluetoothDevice.FromHostNameAsync(host);
return((await device.GetRfcommServicesForIdAsync(id)).Services[0]);
}
public static IAsyncOperation <TetheringState> SendBluetooth(DeviceInformation dev, TetheringState state)
{
return(AsyncInfo.Run(async(cancel) =>
{
for (var tryout = 10; tryout > 0; tryout--)
{
try
{
var selector = RfcommDeviceService.GetDeviceSelector(RfcommServiceId.FromUuid(ServiceUuid));
var devices = await DeviceInformation.FindAllAsync(selector);
var service = devices.SingleOrDefault(d => d.Id.StartsWith(dev.Id, StringComparison.OrdinalIgnoreCase));
if (service == null)
{
throw new Exception("Tethermote Service not found");
}
using (var socket = await ConnectDevice(service))
{
using (var outstream = socket.OutputStream)
{
await outstream.WriteAsync(new byte[] { (byte)state }.AsBuffer());
}
using (var instream = socket.InputStream)
{
var buf = new Windows.Storage.Streams.Buffer(1);
var red = (await instream.ReadAsync(buf, 1, Windows.Storage.Streams.InputStreamOptions.Partial)).Length;
if (red == 1)
{
return (TetheringState)buf.ToArray()[0];
}
Debug.WriteLine("No data");
}
}
}
catch (Exception ex)
{
Debug.WriteLine(ex);
try
{
await PingDevice(dev.Id);
}
catch (Exception e2)
{
Debug.WriteLine(e2);
}
if (tryout != 1)
{
await Task.Delay(100);
}
}
}
return TetheringState.Error;
}));
}
public Scenario3_BgChatServer()
{
this.InitializeComponent();
trigger = new RfcommConnectionTrigger();
// Local service Id is the only mandatory field that should be used to filter a known service UUID.
trigger.InboundConnection.LocalServiceId = RfcommServiceId.FromUuid(Constants.RfcommChatServiceUuid);
// The SDP record is nice in order to populate optional name and description fields
trigger.InboundConnection.SdpRecord = sdpRecordBlob.AsBuffer();
}
/// <summary>
/// Initializes the server using RfcommServiceProvider to advertise the Service UUID and start listening
/// for incoming connections.
/// </summary>
public async Task <bool> InitializeRfcommServer()
{
App.LogService.Write("Initializing RFCOMM server...");
if (_isInitialized)
{
App.LogService.Write("RFCOMM server already initialized!");
return(true);
}
try
{
_rfcommProvider = await RfcommServiceProvider.CreateAsync(RfcommServiceId.FromUuid(BluetoothConstants.RfcommServiceUuid));
}
// Catch exception HRESULT_FROM_WIN32(ERROR_DEVICE_NOT_AVAILABLE).
catch (Exception ex) when((uint)ex.HResult == 0x800710DF)
{
// The Bluetooth radio may be off.
App.LogService.Write("Make sure your Bluetooth Radio is on: " + ex.Message);
return(false);
}
// Create a listener for this service and start listening
App.LogService.Write("Creating socket listener...");
_socketListener = new StreamSocketListener();
_socketListener.ConnectionReceived += OnConnectionReceived;
var rfcomm = _rfcommProvider.ServiceId.AsString();
await _socketListener.BindServiceNameAsync(_rfcommProvider.ServiceId.AsString(),
SocketProtectionLevel.BluetoothEncryptionAllowNullAuthentication);
// Set the SDP attributes and start Bluetooth advertising
InitializeServiceSdpAttributes(_rfcommProvider);
try
{
App.LogService.Write("Starting BT advertisement...");
_rfcommProvider.StartAdvertising(_socketListener, true);
}
catch (Exception e)
{
// If you aren't able to get a reference to an RfcommServiceProvider, tell the user why.
// Usually throws an exception if user changed their privacy settings to prevent Sync w/ Devices.
App.LogService.Write(e.Message, LoggingLevel.Error);
return(false);
}
App.LogService.Write("Listening for incoming connections");
_isInitialized = true;
return(true);
}
public async Task<DeviceInformationCollection> FindSupportedDevicesAsync(RfcommServiceId serviceId)
{
// Find all paired instances of the Rfcomm chat service and display them in a list
DeviceInformationCollection chatServiceDeviceCollection = await DeviceInformation.FindAllAsync(
RfcommDeviceService.GetDeviceSelector(serviceId));
if (chatServiceDeviceCollection == null || chatServiceDeviceCollection.Count == 0)
{
return null;
}
return chatServiceDeviceCollection;
}
public RfcommDeviceServicesResult GetRfcommServices(BluetoothCacheMode cacheMode)
{
BluetoothError error = BluetoothError.Success;
List <RfcommDeviceService> services = new List <RfcommDeviceService>();
foreach (Guid g in GetRfcommServices(ref _info))
{
services.Add(new Rfcomm.RfcommDeviceService(this, RfcommServiceId.FromUuid(g)));
}
return(new RfcommDeviceServicesResult(error, services.AsReadOnly()));
}
protected override async Task StartCoreAsync()
{
var serviceId = RfcommServiceId.FromUuid(_serviceUuid);
_serviceProvider = await RfcommServiceProvider.CreateAsync(serviceId);
_listener.ConnectionReceived += OnConnectionReceived;
await _listener.BindServiceNameAsync(serviceId.AsString(),
SocketProtectionLevel.BluetoothEncryptionAllowNullAuthentication);
InitializeServiceSdpAttributes(_serviceProvider);
_serviceProvider.StartAdvertising(_listener, true);
}
