jellyfin/MediaBrowser.Server.Implementations/HttpServer/SocketSharp/SharpWebSocket.cs

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using MediaBrowser.Common.Events;
using MediaBrowser.Controller.Net;
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using MediaBrowser.Model.Logging;
using System;
using System.Threading;
using System.Threading.Tasks;
using WebSocketState = MediaBrowser.Model.Net.WebSocketState;
namespace MediaBrowser.Server.Implementations.HttpServer.SocketSharp
{
public class SharpWebSocket : IWebSocket
{
/// <summary>
/// The logger
/// </summary>
private readonly ILogger _logger;
public event EventHandler<EventArgs> Closed;
/// <summary>
/// Gets or sets the web socket.
/// </summary>
/// <value>The web socket.</value>
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private SocketHttpListener.WebSocket WebSocket { get; set; }
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private readonly CancellationTokenSource _cancellationTokenSource = new CancellationTokenSource();
/// <summary>
/// Initializes a new instance of the <see cref="NativeWebSocket" /> class.
/// </summary>
/// <param name="socket">The socket.</param>
/// <param name="logger">The logger.</param>
/// <exception cref="System.ArgumentNullException">socket</exception>
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public SharpWebSocket(SocketHttpListener.WebSocket socket, ILogger logger)
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{
if (socket == null)
{
throw new ArgumentNullException("socket");
}
if (logger == null)
{
throw new ArgumentNullException("logger");
}
_logger = logger;
WebSocket = socket;
socket.OnMessage += socket_OnMessage;
socket.OnClose += socket_OnClose;
socket.OnError += socket_OnError;
WebSocket.ConnectAsServer();
}
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void socket_OnError(object sender, SocketHttpListener.ErrorEventArgs e)
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{
EventHelper.FireEventIfNotNull(Closed, this, EventArgs.Empty, _logger);
}
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void socket_OnClose(object sender, SocketHttpListener.CloseEventArgs e)
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{
EventHelper.FireEventIfNotNull(Closed, this, EventArgs.Empty, _logger);
}
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void socket_OnMessage(object sender, SocketHttpListener.MessageEventArgs e)
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{
if (OnReceive != null)
{
OnReceiveBytes(e.RawData);
}
}
/// <summary>
/// Gets or sets the state.
/// </summary>
/// <value>The state.</value>
public WebSocketState State
{
get
{
WebSocketState commonState;
if (!Enum.TryParse(WebSocket.ReadyState.ToString(), true, out commonState))
{
_logger.Warn("Unrecognized WebSocketState: {0}", WebSocket.ReadyState.ToString());
}
return commonState;
}
}
/// <summary>
/// Sends the async.
/// </summary>
/// <param name="bytes">The bytes.</param>
/// <param name="endOfMessage">if set to <c>true</c> [end of message].</param>
/// <param name="cancellationToken">The cancellation token.</param>
/// <returns>Task.</returns>
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public Task SendAsync(byte[] bytes, bool endOfMessage, CancellationToken cancellationToken)
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{
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var completionSource = new TaskCompletionSource<bool>();
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WebSocket.SendAsync(bytes, res => completionSource.TrySetResult(true));
return completionSource.Task;
}
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/// <summary>
/// Sends the asynchronous.
/// </summary>
/// <param name="text">The text.</param>
/// <param name="endOfMessage">if set to <c>true</c> [end of message].</param>
/// <param name="cancellationToken">The cancellation token.</param>
/// <returns>Task.</returns>
public Task SendAsync(string text, bool endOfMessage, CancellationToken cancellationToken)
{
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var completionSource = new TaskCompletionSource<bool>();
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WebSocket.SendAsync(text, res => completionSource.TrySetResult(true));
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return completionSource.Task;
}
/// <summary>
/// Performs application-defined tasks associated with freeing, releasing, or resetting unmanaged resources.
/// </summary>
public void Dispose()
{
Dispose(true);
}
/// <summary>
/// Releases unmanaged and - optionally - managed resources.
/// </summary>
/// <param name="dispose"><c>true</c> to release both managed and unmanaged resources; <c>false</c> to release only unmanaged resources.</param>
protected virtual void Dispose(bool dispose)
{
if (dispose)
{
WebSocket.OnMessage -= socket_OnMessage;
WebSocket.OnClose -= socket_OnClose;
WebSocket.OnError -= socket_OnError;
_cancellationTokenSource.Cancel();
WebSocket.Close();
}
}
/// <summary>
/// Gets or sets the receive action.
/// </summary>
/// <value>The receive action.</value>
public Action<byte[]> OnReceiveBytes { get; set; }
/// <summary>
/// Gets or sets the on receive.
/// </summary>
/// <value>The on receive.</value>
public Action<string> OnReceive { get; set; }
}
}