diff --git a/MediaBrowser.Common/MediaBrowser.Common.csproj b/MediaBrowser.Common/MediaBrowser.Common.csproj
index bdef529a57..a8fc4564c7 100644
--- a/MediaBrowser.Common/MediaBrowser.Common.csproj
+++ b/MediaBrowser.Common/MediaBrowser.Common.csproj
@@ -80,12 +80,10 @@
-
-
diff --git a/MediaBrowser.Common/Net/IUdpServer.cs b/MediaBrowser.Common/Net/IUdpServer.cs
deleted file mode 100644
index 036977eab5..0000000000
--- a/MediaBrowser.Common/Net/IUdpServer.cs
+++ /dev/null
@@ -1,46 +0,0 @@
-using System;
-using System.Threading.Tasks;
-
-namespace MediaBrowser.Common.Net
-{
- ///
- /// Interface IUdpServer
- ///
- public interface IUdpServer : IDisposable
- {
- ///
- /// Occurs when [message received].
- ///
- event EventHandler MessageReceived;
-
- ///
- /// Starts the specified port.
- ///
- /// The port.
- void Start(int port);
-
- ///
- /// Stops this instance.
- ///
- void Stop();
-
- ///
- /// Sends the async.
- ///
- /// The bytes.
- /// The remote end point.
- /// Task.
- /// data
- Task SendAsync(byte[] bytes, string remoteEndPoint);
-
- ///
- /// Sends the async.
- ///
- /// The bytes.
- /// The ip address.
- /// The port.
- /// Task.
- /// bytes
- Task SendAsync(byte[] bytes, string ipAddress, int port);
- }
-}
diff --git a/MediaBrowser.Common/Net/UdpMessageReceivedEventArgs.cs b/MediaBrowser.Common/Net/UdpMessageReceivedEventArgs.cs
deleted file mode 100644
index bd5034c47d..0000000000
--- a/MediaBrowser.Common/Net/UdpMessageReceivedEventArgs.cs
+++ /dev/null
@@ -1,21 +0,0 @@
-using System;
-
-namespace MediaBrowser.Common.Net
-{
- ///
- /// Class UdpMessageReceivedEventArgs
- ///
- public class UdpMessageReceivedEventArgs : EventArgs
- {
- ///
- /// Gets or sets the bytes.
- ///
- /// The bytes.
- public byte[] Bytes { get; set; }
- ///
- /// Gets or sets the remote end point.
- ///
- /// The remote end point.
- public string RemoteEndPoint { get; set; }
- }
-}
diff --git a/MediaBrowser.Controller/Kernel.cs b/MediaBrowser.Controller/Kernel.cs
index d43c505a5e..51d347cafc 100644
--- a/MediaBrowser.Controller/Kernel.cs
+++ b/MediaBrowser.Controller/Kernel.cs
@@ -124,15 +124,6 @@ namespace MediaBrowser.Controller
/// The user data repository.
public IUserDataRepository UserDataRepository { get; set; }
- ///
- /// Gets the UDP server port number.
- ///
- /// The UDP server port number.
- public int UdpServerPortNumber
- {
- get { return 7359; }
- }
-
private readonly IServerConfigurationManager _configurationManager;
///
diff --git a/MediaBrowser.Server.Implementations/IO/DirectoryWatchers.cs b/MediaBrowser.Server.Implementations/IO/DirectoryWatchers.cs
index 14d413f1a4..c33975a649 100644
--- a/MediaBrowser.Server.Implementations/IO/DirectoryWatchers.cs
+++ b/MediaBrowser.Server.Implementations/IO/DirectoryWatchers.cs
@@ -454,6 +454,10 @@ namespace MediaBrowser.Server.Implementations.IO
// Should we remove it from it's parent?
Logger.ErrorException("Error refreshing {0}", ex, i.Name);
}
+ catch (Exception ex)
+ {
+ Logger.ErrorException("Error refreshing {0}", ex, i.Name);
+ }
}))).ConfigureAwait(false);
}
diff --git a/MediaBrowser.Server.Implementations/MediaBrowser.Server.Implementations.csproj b/MediaBrowser.Server.Implementations/MediaBrowser.Server.Implementations.csproj
index 0a20370515..9aac84f29f 100644
--- a/MediaBrowser.Server.Implementations/MediaBrowser.Server.Implementations.csproj
+++ b/MediaBrowser.Server.Implementations/MediaBrowser.Server.Implementations.csproj
@@ -167,6 +167,7 @@
+
@@ -244,7 +245,6 @@
-
diff --git a/MediaBrowser.Server.Implementations/ServerManager/RegisterServer.bat b/MediaBrowser.Server.Implementations/ServerManager/RegisterServer.bat
deleted file mode 100644
index d762dfaf76..0000000000
--- a/MediaBrowser.Server.Implementations/ServerManager/RegisterServer.bat
+++ /dev/null
@@ -1,28 +0,0 @@
-rem %1 = http server port
-rem %2 = http server url
-rem %3 = udp server port
-rem %4 = tcp server port (web socket)
-
-if [%1]==[] GOTO DONE
-
-netsh advfirewall firewall delete rule name="Port %1" protocol=TCP localport=%1
-netsh advfirewall firewall add rule name="Port %1" dir=in action=allow protocol=TCP localport=%1
-
-if [%2]==[] GOTO DONE
-
-netsh http del urlacl url="%2" user="NT AUTHORITY\Authenticated Users"
-netsh http add urlacl url="%2" user="NT AUTHORITY\Authenticated Users"
-
-if [%3]==[] GOTO DONE
-
-netsh advfirewall firewall delete rule name="Port %3" protocol=UDP localport=%3
-netsh advfirewall firewall add rule name="Port %3" dir=in action=allow protocol=UDP localport=%3
-
-if [%4]==[] GOTO DONE
-
-netsh advfirewall firewall delete rule name="Port %4" protocol=TCP localport=%4
-netsh advfirewall firewall add rule name="Port %4" dir=in action=allow protocol=TCP localport=%4
-
-
-:DONE
-Exit
\ No newline at end of file
diff --git a/MediaBrowser.Server.Implementations/ServerManager/ServerManager.cs b/MediaBrowser.Server.Implementations/ServerManager/ServerManager.cs
index c1453cd8ba..991ac2e3b5 100644
--- a/MediaBrowser.Server.Implementations/ServerManager/ServerManager.cs
+++ b/MediaBrowser.Server.Implementations/ServerManager/ServerManager.cs
@@ -7,13 +7,8 @@ using MediaBrowser.Model.Net;
using MediaBrowser.Model.Serialization;
using System;
using System.Collections.Generic;
-using System.Diagnostics;
-using System.IO;
using System.Linq;
using System.Net;
-using System.Net.Sockets;
-using System.Reflection;
-using System.Text;
using System.Threading;
using System.Threading.Tasks;
@@ -22,14 +17,8 @@ namespace MediaBrowser.Server.Implementations.ServerManager
///
/// Manages the Http Server, Udp Server and WebSocket connections
///
- public class ServerManager : IServerManager, IDisposable
+ public class ServerManager : IServerManager
{
- ///
- /// This is the udp server used for server discovery by clients
- ///
- /// The UDP server.
- private IUdpServer UdpServer { get; set; }
-
///
/// Both the Ui and server will have a built-in HttpServer.
/// People will inevitably want remote control apps so it's needed in the Ui too.
@@ -65,11 +54,6 @@ namespace MediaBrowser.Server.Implementations.ServerManager
///
private readonly ILogger _logger;
- ///
- /// The _network manager
- ///
- private readonly INetworkManager _networkManager;
-
///
/// The _application host
///
@@ -106,26 +90,22 @@ namespace MediaBrowser.Server.Implementations.ServerManager
private readonly List _webSocketListeners = new List();
private readonly Kernel _kernel;
-
+
///
/// Initializes a new instance of the class.
///
/// The application host.
- /// The network manager.
/// The json serializer.
/// The logger.
/// The configuration manager.
+ /// The kernel.
/// applicationHost
- public ServerManager(IApplicationHost applicationHost, INetworkManager networkManager, IJsonSerializer jsonSerializer, ILogger logger, IServerConfigurationManager configurationManager, Kernel kernel)
+ public ServerManager(IApplicationHost applicationHost, IJsonSerializer jsonSerializer, ILogger logger, IServerConfigurationManager configurationManager, Kernel kernel)
{
if (applicationHost == null)
{
throw new ArgumentNullException("applicationHost");
}
- if (networkManager == null)
- {
- throw new ArgumentNullException("networkManager");
- }
if (jsonSerializer == null)
{
throw new ArgumentNullException("jsonSerializer");
@@ -138,7 +118,6 @@ namespace MediaBrowser.Server.Implementations.ServerManager
_logger = logger;
_jsonSerializer = jsonSerializer;
_applicationHost = applicationHost;
- _networkManager = networkManager;
ConfigurationManager = configurationManager;
_kernel = kernel;
}
@@ -148,13 +127,6 @@ namespace MediaBrowser.Server.Implementations.ServerManager
///
public void Start()
{
- if (_applicationHost.IsFirstRun)
- {
- RegisterServerWithAdministratorAccess();
- }
-
- ReloadUdpServer();
-
ReloadHttpServer();
if (!SupportsNativeWebSocket)
@@ -162,7 +134,7 @@ namespace MediaBrowser.Server.Implementations.ServerManager
ReloadExternalWebSocketServer();
}
- ConfigurationManager.ConfigurationUpdated += _kernel_ConfigurationUpdated;
+ ConfigurationManager.ConfigurationUpdated += ConfigurationUpdated;
}
///
@@ -181,8 +153,7 @@ namespace MediaBrowser.Server.Implementations.ServerManager
///
/// Restarts the Http Server, or starts it if not currently running
///
- /// if set to true [register server on failure].
- private void ReloadHttpServer(bool registerServerOnFailure = true)
+ private void ReloadHttpServer()
{
// Only reload if the port has changed, so that we don't disconnect any active users
if (HttpServer != null && HttpServer.UrlPrefix.Equals(_kernel.HttpServerUrlPrefix, StringComparison.OrdinalIgnoreCase))
@@ -204,16 +175,6 @@ namespace MediaBrowser.Server.Implementations.ServerManager
{
_logger.ErrorException("Error starting Http Server", ex);
- if (registerServerOnFailure)
- {
- RegisterServerWithAdministratorAccess();
-
- // Don't get stuck in a loop
- ReloadHttpServer(false);
-
- return;
- }
-
throw;
}
@@ -253,60 +214,6 @@ namespace MediaBrowser.Server.Implementations.ServerManager
await Task.WhenAll(tasks).ConfigureAwait(false);
}
- ///
- /// Starts or re-starts the udp server
- ///
- private void ReloadUdpServer()
- {
- // For now, there's no reason to keep reloading this over and over
- if (UdpServer != null)
- {
- return;
- }
-
- DisposeUdpServer();
-
- try
- {
- // The port number can't be in configuration because we don't want it to ever change
- UdpServer = _applicationHost.Resolve();
-
- _logger.Info("Starting udp server");
-
- UdpServer.Start(_kernel.UdpServerPortNumber);
- }
- catch (SocketException ex)
- {
- _logger.ErrorException("Failed to start UDP Server", ex);
- return;
- }
-
- UdpServer.MessageReceived += UdpServer_MessageReceived;
- }
-
- ///
- /// Handles the MessageReceived event of the UdpServer control.
- ///
- /// The source of the event.
- /// The instance containing the event data.
- async void UdpServer_MessageReceived(object sender, UdpMessageReceivedEventArgs e)
- {
- var context = "Server";
-
- var expectedMessage = String.Format("who is MediaBrowser{0}?", context);
- var expectedMessageBytes = Encoding.UTF8.GetBytes(expectedMessage);
-
- if (expectedMessageBytes.SequenceEqual(e.Bytes))
- {
- _logger.Info("Received UDP server request from " + e.RemoteEndPoint);
-
- // Send a response back with our ip address and port
- var response = String.Format("MediaBrowser{0}|{1}:{2}", context, _networkManager.GetLocalIpAddress(), ConfigurationManager.Configuration.HttpServerPortNumber);
-
- await UdpServer.SendAsync(Encoding.UTF8.GetBytes(response), e.RemoteEndPoint);
- }
- }
-
///
/// Sends a message to all clients currently connected via a web socket
///
@@ -387,20 +294,6 @@ namespace MediaBrowser.Server.Implementations.ServerManager
}
}
- ///
- /// Disposes the udp server
- ///
- private void DisposeUdpServer()
- {
- if (UdpServer != null)
- {
- _logger.Info("Disposing UdpServer");
-
- UdpServer.MessageReceived -= UdpServer_MessageReceived;
- UdpServer.Dispose();
- }
- }
-
///
/// Disposes the current HttpServer
///
@@ -428,46 +321,6 @@ namespace MediaBrowser.Server.Implementations.ServerManager
DisposeExternalWebSocketServer();
}
- ///
- /// Registers the server with administrator access.
- ///
- private void RegisterServerWithAdministratorAccess()
- {
- _logger.Info("Requesting administrative access to authorize http server");
-
- // Create a temp file path to extract the bat file to
- var tmpFile = Path.Combine(ConfigurationManager.CommonApplicationPaths.TempDirectory, Guid.NewGuid() + ".bat");
-
- // Extract the bat file
- using (var stream = Assembly.GetExecutingAssembly().GetManifestResourceStream("MediaBrowser.Server.Implementations.ServerManager.RegisterServer.bat"))
- {
- using (var fileStream = File.Create(tmpFile))
- {
- stream.CopyTo(fileStream);
- }
- }
-
- var startInfo = new ProcessStartInfo
- {
- FileName = tmpFile,
-
- Arguments = string.Format("{0} {1} {2} {3}", ConfigurationManager.Configuration.HttpServerPortNumber,
- _kernel.HttpServerUrlPrefix,
- _kernel.UdpServerPortNumber,
- ConfigurationManager.Configuration.LegacyWebSocketPortNumber),
-
- CreateNoWindow = true,
- WindowStyle = ProcessWindowStyle.Hidden,
- Verb = "runas",
- ErrorDialog = false
- };
-
- using (var process = Process.Start(startInfo))
- {
- process.WaitForExit();
- }
- }
-
///
/// Performs application-defined tasks associated with freeing, releasing, or resetting unmanaged resources.
///
@@ -485,7 +338,6 @@ namespace MediaBrowser.Server.Implementations.ServerManager
{
if (dispose)
{
- DisposeUdpServer();
DisposeHttpServer();
}
}
@@ -508,7 +360,7 @@ namespace MediaBrowser.Server.Implementations.ServerManager
/// The source of the event.
/// The instance containing the event data.
///
- void _kernel_ConfigurationUpdated(object sender, EventArgs e)
+ void ConfigurationUpdated(object sender, EventArgs e)
{
HttpServer.EnableHttpRequestLogging = ConfigurationManager.Configuration.EnableHttpLevelLogging;
diff --git a/MediaBrowser.Server.Implementations/Udp/UdpServer.cs b/MediaBrowser.Server.Implementations/Udp/UdpServer.cs
index 375d9274ef..718a25a0d6 100644
--- a/MediaBrowser.Server.Implementations/Udp/UdpServer.cs
+++ b/MediaBrowser.Server.Implementations/Udp/UdpServer.cs
@@ -1,5 +1,7 @@
-using MediaBrowser.Common.Implementations.NetworkManagement;
+using System.Linq;
+using MediaBrowser.Common.Implementations.NetworkManagement;
using MediaBrowser.Common.Net;
+using MediaBrowser.Controller.Configuration;
using MediaBrowser.Model.Logging;
using System;
using System.Net;
@@ -13,36 +15,49 @@ namespace MediaBrowser.Server.Implementations.Udp
///
/// Provides a Udp Server
///
- public class UdpServer : IUdpServer
+ public class UdpServer : IDisposable
{
///
- /// Occurs when [message received].
+ /// The _logger
///
- public event EventHandler MessageReceived;
+ private readonly ILogger _logger;
- ///
- /// Gets or sets the logger.
- ///
- /// The logger.
- private ILogger Logger { get; set; }
+ private readonly INetworkManager _networkManager;
+ private readonly IServerConfigurationManager _serverConfigurationManager;
+
///
/// Initializes a new instance of the class.
///
/// The logger.
- public UdpServer(ILogger logger)
+ /// The network manager.
+ public UdpServer(ILogger logger, INetworkManager networkManager, IServerConfigurationManager serverConfigurationManager)
{
- Logger = logger;
+ _logger = logger;
+ _networkManager = networkManager;
+ _serverConfigurationManager = serverConfigurationManager;
}
///
/// Raises the event.
///
/// The instance containing the event data.
- protected virtual void OnMessageReceived(UdpMessageReceivedEventArgs e)
+ private async void OnMessageReceived(UdpMessageReceivedEventArgs e)
{
- EventHandler handler = MessageReceived;
- if (handler != null) handler(this, e);
+ var context = "Server";
+
+ var expectedMessage = String.Format("who is MediaBrowser{0}?", context);
+ var expectedMessageBytes = Encoding.UTF8.GetBytes(expectedMessage);
+
+ if (expectedMessageBytes.SequenceEqual(e.Bytes))
+ {
+ _logger.Info("Received UDP server request from " + e.RemoteEndPoint);
+
+ // Send a response back with our ip address and port
+ var response = String.Format("MediaBrowser{0}|{1}:{2}", context, _networkManager.GetLocalIpAddress(), _serverConfigurationManager.Configuration.HttpServerPortNumber);
+
+ await SendAsync(Encoding.UTF8.GetBytes(response), e.RemoteEndPoint);
+ }
}
///
@@ -82,7 +97,7 @@ namespace MediaBrowser.Server.Implementations.Udp
}
catch (Exception ex)
{
- Logger.ErrorException("Error receiving udp message", ex);
+ _logger.ErrorException("Error receiving udp message", ex);
return Task.FromResult(new UdpReceiveResult(new byte[] { }, new IPEndPoint(IPAddress.Any, 0)));
}
})
@@ -201,7 +216,7 @@ namespace MediaBrowser.Server.Implementations.Udp
await _udpClient.SendAsync(bytes, bytes.Length, new NetworkManager().Parse(remoteEndPoint)).ConfigureAwait(false);
- Logger.Info("Udp message sent to {0}", remoteEndPoint);
+ _logger.Info("Udp message sent to {0}", remoteEndPoint);
}
}
diff --git a/MediaBrowser.ServerApplication/ApplicationHost.cs b/MediaBrowser.ServerApplication/ApplicationHost.cs
index e7162e3dd4..b259388335 100644
--- a/MediaBrowser.ServerApplication/ApplicationHost.cs
+++ b/MediaBrowser.ServerApplication/ApplicationHost.cs
@@ -1,4 +1,8 @@
-using MediaBrowser.Api;
+using System.Diagnostics;
+using System.Net.Cache;
+using System.Net.Http;
+using System.Net.Sockets;
+using MediaBrowser.Api;
using MediaBrowser.Common;
using MediaBrowser.Common.Configuration;
using MediaBrowser.Common.Constants;
@@ -55,6 +59,8 @@ namespace MediaBrowser.ServerApplication
///
public class ApplicationHost : BaseApplicationHost, IServerApplicationHost
{
+ private const int UdpServerPort = 7359;
+
///
/// Gets the server kernel.
///
@@ -129,6 +135,12 @@ namespace MediaBrowser.ServerApplication
/// The HTTP server.
private IHttpServer HttpServer { get; set; }
+ ///
+ /// Gets or sets the UDP server.
+ ///
+ /// The UDP server.
+ private UdpServer UdpServer { get; set; }
+
///
/// The full path to our startmenu shortcut
///
@@ -172,7 +184,6 @@ namespace MediaBrowser.ServerApplication
RegisterSingleInstance(ServerConfigurationManager);
RegisterSingleInstance(() => new AlchemyServer(Logger));
- RegisterSingleInstance(new UdpServer(Logger), false);
RegisterSingleInstance(new PismoIsoManager(Logger));
RegisterSingleInstance(new BdInfoExaminer());
@@ -183,7 +194,7 @@ namespace MediaBrowser.ServerApplication
HttpServer = ServerFactory.CreateServer(this, ProtobufSerializer, Logger, "Media Browser", "index.html");
RegisterSingleInstance(HttpServer, false);
- ServerManager = new ServerManager(this, NetworkManager, JsonSerializer, Logger, ServerConfigurationManager, ServerKernel);
+ ServerManager = new ServerManager(this, JsonSerializer, Logger, ServerConfigurationManager, ServerKernel);
RegisterSingleInstance(ServerManager);
UserManager = new UserManager(ServerKernel, Logger, ServerConfigurationManager);
@@ -247,6 +258,11 @@ namespace MediaBrowser.ServerApplication
{
base.FindParts();
+ //if (IsFirstRun)
+ {
+ RegisterServerWithAdministratorAccess();
+ }
+
Parallel.Invoke(
() =>
@@ -261,6 +277,17 @@ namespace MediaBrowser.ServerApplication
() => ProviderManager.AddMetadataProviders(GetExports().OrderBy(e => e.Priority).ToArray())
);
+
+ UdpServer = new UdpServer(Logger, NetworkManager, ServerConfigurationManager);
+
+ try
+ {
+ UdpServer.Start(UdpServerPort);
+ }
+ catch (SocketException ex)
+ {
+ Logger.ErrorException("Failed to start UDP Server", ex);
+ }
}
///
@@ -280,6 +307,23 @@ namespace MediaBrowser.ServerApplication
get { return ConfigurationManager.CommonConfiguration.EnableAutoUpdate; }
}
+ ///
+ /// Releases unmanaged and - optionally - managed resources.
+ ///
+ /// true to release both managed and unmanaged resources; false to release only unmanaged resources.
+ protected override void Dispose(bool dispose)
+ {
+ if (dispose)
+ {
+ if (UdpServer != null)
+ {
+ UdpServer.Dispose();
+ }
+ }
+
+ base.Dispose(dispose);
+ }
+
///
/// Checks for update.
///
@@ -363,6 +407,46 @@ namespace MediaBrowser.ServerApplication
public override void Shutdown()
{
App.Instance.Dispatcher.Invoke(App.Instance.Shutdown);
+ }
+
+ ///
+ /// Registers the server with administrator access.
+ ///
+ private void RegisterServerWithAdministratorAccess()
+ {
+ Logger.Info("Requesting administrative access to authorize http server");
+
+ // Create a temp file path to extract the bat file to
+ var tmpFile = Path.Combine(ConfigurationManager.CommonApplicationPaths.TempDirectory, Guid.NewGuid() + ".bat");
+
+ // Extract the bat file
+ using (var stream = Assembly.GetExecutingAssembly().GetManifestResourceStream("MediaBrowser.ServerApplication.RegisterServer.bat"))
+ {
+ using (var fileStream = File.Create(tmpFile))
+ {
+ stream.CopyTo(fileStream);
+ }
+ }
+
+ var startInfo = new ProcessStartInfo
+ {
+ FileName = tmpFile,
+
+ Arguments = string.Format("{0} {1} {2} {3}", ServerConfigurationManager.Configuration.HttpServerPortNumber,
+ ServerKernel.HttpServerUrlPrefix,
+ UdpServerPort,
+ ServerConfigurationManager.Configuration.LegacyWebSocketPortNumber),
+
+ CreateNoWindow = true,
+ WindowStyle = ProcessWindowStyle.Hidden,
+ Verb = "runas",
+ ErrorDialog = false
+ };
+
+ using (var process = Process.Start(startInfo))
+ {
+ process.WaitForExit();
+ }
}
}
}
diff --git a/MediaBrowser.ServerApplication/MainWindow.xaml b/MediaBrowser.ServerApplication/MainWindow.xaml
index 330bacd355..bbc7e64c8f 100644
--- a/MediaBrowser.ServerApplication/MainWindow.xaml
+++ b/MediaBrowser.ServerApplication/MainWindow.xaml
@@ -2,7 +2,13 @@
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
xmlns:tb="http://www.hardcodet.net/taskbar"
- Title="Media Browser Server" Height="350" Width="525" AllowsTransparency="True" Background="Transparent" WindowStyle="None" ShowInTaskbar="False">
+ Title="Media Browser Server"
+ Height="350"
+ Width="525"
+ AllowsTransparency="True"
+ Background="Transparent"
+ WindowStyle="None"
+ ShowInTaskbar="False">
diff --git a/MediaBrowser.ServerApplication/MediaBrowser.ServerApplication.csproj b/MediaBrowser.ServerApplication/MediaBrowser.ServerApplication.csproj
index ddb55ac6f9..cc71d5df66 100644
--- a/MediaBrowser.ServerApplication/MediaBrowser.ServerApplication.csproj
+++ b/MediaBrowser.ServerApplication/MediaBrowser.ServerApplication.csproj
@@ -258,6 +258,7 @@
Settings.Designer.cs
+