Patrick Barron
4 years ago
committed by
GitHub
commit
87c63e668c
@ -1,39 +0,0 @@
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#pragma warning disable CS1591
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using System;
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using System.Threading;
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using System.Threading.Tasks;
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using Emby.Server.Implementations.Net;
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using MediaBrowser.Model.Services;
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using Microsoft.AspNetCore.Http;
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namespace Emby.Server.Implementations.HttpServer
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{
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public interface IHttpListener : IDisposable
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{
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/// <summary>
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/// Gets or sets the error handler.
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/// </summary>
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/// <value>The error handler.</value>
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Func<Exception, IRequest, bool, bool, Task> ErrorHandler { get; set; }
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/// <summary>
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/// Gets or sets the request handler.
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/// </summary>
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/// <value>The request handler.</value>
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Func<IHttpRequest, string, string, string, CancellationToken, Task> RequestHandler { get; set; }
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/// <summary>
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/// Gets or sets the web socket handler.
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/// </summary>
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/// <value>The web socket handler.</value>
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Action<WebSocketConnectEventArgs> WebSocketConnected { get; set; }
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/// <summary>
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/// Stops this instance.
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/// </summary>
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Task Stop();
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Task ProcessWebSocketRequest(HttpContext ctx);
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}
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}
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@ -1,39 +0,0 @@
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using System.Threading.Tasks;
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using Microsoft.AspNetCore.Http;
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using Microsoft.Extensions.Logging;
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using WebSocketManager = Emby.Server.Implementations.WebSockets.WebSocketManager;
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namespace Emby.Server.Implementations.Middleware
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{
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public class WebSocketMiddleware
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{
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private readonly RequestDelegate _next;
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private readonly ILogger<WebSocketMiddleware> _logger;
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private readonly WebSocketManager _webSocketManager;
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public WebSocketMiddleware(RequestDelegate next, ILogger<WebSocketMiddleware> logger, WebSocketManager webSocketManager)
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{
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_next = next;
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_logger = logger;
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_webSocketManager = webSocketManager;
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}
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public async Task Invoke(HttpContext httpContext)
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{
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_logger.LogInformation("Handling request: " + httpContext.Request.Path);
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if (httpContext.WebSockets.IsWebSocketRequest)
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{
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var webSocketContext = await httpContext.WebSockets.AcceptWebSocketAsync(null).ConfigureAwait(false);
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if (webSocketContext != null)
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{
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await _webSocketManager.OnWebSocketConnected(webSocketContext).ConfigureAwait(false);
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}
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}
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else
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{
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await _next.Invoke(httpContext).ConfigureAwait(false);
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}
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}
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}
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}
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@ -1,48 +0,0 @@
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using System;
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using System.Net.WebSockets;
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using System.Threading;
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using System.Threading.Tasks;
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namespace Emby.Server.Implementations.Net
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{
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/// <summary>
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/// Interface IWebSocket
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/// </summary>
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public interface IWebSocket : IDisposable
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{
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/// <summary>
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/// Occurs when [closed].
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/// </summary>
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event EventHandler<EventArgs> Closed;
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/// <summary>
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/// Gets or sets the state.
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/// </summary>
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/// <value>The state.</value>
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WebSocketState State { get; }
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/// <summary>
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/// Gets or sets the receive action.
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/// </summary>
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/// <value>The receive action.</value>
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Action<byte[]> OnReceiveBytes { get; set; }
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/// <summary>
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/// Sends the async.
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/// </summary>
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/// <param name="bytes">The bytes.</param>
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/// <param name="endOfMessage">if set to <c>true</c> [end of message].</param>
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/// <param name="cancellationToken">The cancellation token.</param>
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/// <returns>Task.</returns>
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Task SendAsync(byte[] bytes, bool endOfMessage, CancellationToken cancellationToken);
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/// <summary>
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/// Sends the asynchronous.
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/// </summary>
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/// <param name="text">The text.</param>
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/// <param name="endOfMessage">if set to <c>true</c> [end of message].</param>
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/// <param name="cancellationToken">The cancellation token.</param>
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/// <returns>Task.</returns>
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Task SendAsync(string text, bool endOfMessage, CancellationToken cancellationToken);
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}
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}
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@ -1,29 +0,0 @@
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using System;
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using Microsoft.AspNetCore.Http;
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namespace Emby.Server.Implementations.Net
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{
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public class WebSocketConnectEventArgs : EventArgs
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{
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/// <summary>
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/// Gets or sets the URL.
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/// </summary>
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/// <value>The URL.</value>
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public string Url { get; set; }
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/// <summary>
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/// Gets or sets the query string.
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/// </summary>
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/// <value>The query string.</value>
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public IQueryCollection QueryString { get; set; }
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/// <summary>
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/// Gets or sets the web socket.
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/// </summary>
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/// <value>The web socket.</value>
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public IWebSocket WebSocket { get; set; }
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/// <summary>
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/// Gets or sets the endpoint.
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/// </summary>
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/// <value>The endpoint.</value>
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public string Endpoint { get; set; }
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}
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}
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@ -1,191 +0,0 @@
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using System;
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using System.Collections.Generic;
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using System.Globalization;
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using System.Linq;
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using System.Net;
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using System.Threading;
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using System.Threading.Tasks;
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using MediaBrowser.Common.Net;
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using MediaBrowser.Controller.Session;
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using MediaBrowser.Model.Serialization;
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using MediaBrowser.Model.Session;
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namespace Emby.Server.Implementations.Session
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{
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public class HttpSessionController : ISessionController
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{
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private readonly IHttpClient _httpClient;
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private readonly IJsonSerializer _json;
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private readonly ISessionManager _sessionManager;
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public SessionInfo Session { get; private set; }
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private readonly string _postUrl;
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public HttpSessionController(IHttpClient httpClient,
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IJsonSerializer json,
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SessionInfo session,
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string postUrl, ISessionManager sessionManager)
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{
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_httpClient = httpClient;
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_json = json;
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Session = session;
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_postUrl = postUrl;
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_sessionManager = sessionManager;
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}
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private string PostUrl => string.Format("http://{0}{1}", Session.RemoteEndPoint, _postUrl);
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public bool IsSessionActive => (DateTime.UtcNow - Session.LastActivityDate).TotalMinutes <= 5;
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public bool SupportsMediaControl => true;
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private Task SendMessage(string name, string messageId, CancellationToken cancellationToken)
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{
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return SendMessage(name, messageId, new Dictionary<string, string>(), cancellationToken);
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}
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private Task SendMessage(string name, string messageId, Dictionary<string, string> args, CancellationToken cancellationToken)
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{
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args["messageId"] = messageId;
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var url = PostUrl + "/" + name + ToQueryString(args);
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return SendRequest(new HttpRequestOptions
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{
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Url = url,
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CancellationToken = cancellationToken,
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BufferContent = false
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});
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}
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private Task SendPlayCommand(PlayRequest command, string messageId, CancellationToken cancellationToken)
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{
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var dict = new Dictionary<string, string>();
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dict["ItemIds"] = string.Join(",", command.ItemIds.Select(i => i.ToString("N", CultureInfo.InvariantCulture)).ToArray());
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if (command.StartPositionTicks.HasValue)
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{
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dict["StartPositionTicks"] = command.StartPositionTicks.Value.ToString(CultureInfo.InvariantCulture);
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}
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if (command.AudioStreamIndex.HasValue)
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{
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dict["AudioStreamIndex"] = command.AudioStreamIndex.Value.ToString(CultureInfo.InvariantCulture);
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}
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if (command.SubtitleStreamIndex.HasValue)
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{
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dict["SubtitleStreamIndex"] = command.SubtitleStreamIndex.Value.ToString(CultureInfo.InvariantCulture);
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}
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if (command.StartIndex.HasValue)
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{
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dict["StartIndex"] = command.StartIndex.Value.ToString(CultureInfo.InvariantCulture);
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}
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if (!string.IsNullOrEmpty(command.MediaSourceId))
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{
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dict["MediaSourceId"] = command.MediaSourceId;
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}
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return SendMessage(command.PlayCommand.ToString(), messageId, dict, cancellationToken);
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}
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private Task SendPlaystateCommand(PlaystateRequest command, string messageId, CancellationToken cancellationToken)
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{
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var args = new Dictionary<string, string>();
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if (command.Command == PlaystateCommand.Seek)
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{
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if (!command.SeekPositionTicks.HasValue)
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{
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throw new ArgumentException("SeekPositionTicks cannot be null");
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}
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args["SeekPositionTicks"] = command.SeekPositionTicks.Value.ToString(CultureInfo.InvariantCulture);
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}
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return SendMessage(command.Command.ToString(), messageId, args, cancellationToken);
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}
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private string[] _supportedMessages = Array.Empty<string>();
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public Task SendMessage<T>(string name, string messageId, T data, ISessionController[] allControllers, CancellationToken cancellationToken)
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{
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if (!IsSessionActive)
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{
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return Task.CompletedTask;
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}
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if (string.Equals(name, "Play", StringComparison.OrdinalIgnoreCase))
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{
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return SendPlayCommand(data as PlayRequest, messageId, cancellationToken);
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}
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if (string.Equals(name, "PlayState", StringComparison.OrdinalIgnoreCase))
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{
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return SendPlaystateCommand(data as PlaystateRequest, messageId, cancellationToken);
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}
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if (string.Equals(name, "GeneralCommand", StringComparison.OrdinalIgnoreCase))
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{
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var command = data as GeneralCommand;
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return SendMessage(command.Name, messageId, command.Arguments, cancellationToken);
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}
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if (!_supportedMessages.Contains(name, StringComparer.OrdinalIgnoreCase))
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{
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return Task.CompletedTask;
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}
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var url = PostUrl + "/" + name;
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url += "?messageId=" + messageId;
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var options = new HttpRequestOptions
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{
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Url = url,
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CancellationToken = cancellationToken,
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BufferContent = false
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};
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if (data != null)
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{
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if (typeof(T) == typeof(string))
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{
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var str = data as string;
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if (!string.IsNullOrEmpty(str))
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{
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options.RequestContent = str;
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options.RequestContentType = "application/json";
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}
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}
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else
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{
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options.RequestContent = _json.SerializeToString(data);
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options.RequestContentType = "application/json";
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}
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}
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return SendRequest(options);
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}
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private async Task SendRequest(HttpRequestOptions options)
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{
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using (var response = await _httpClient.Post(options).ConfigureAwait(false))
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{
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}
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}
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private static string ToQueryString(Dictionary<string, string> nvc)
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{
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var array = (from item in nvc
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select string.Format("{0}={1}", WebUtility.UrlEncode(item.Key), WebUtility.UrlEncode(item.Value)))
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.ToArray();
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var args = string.Join("&", array);
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if (string.IsNullOrEmpty(args))
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{
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return args;
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}
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return "?" + args;
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}
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}
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}
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@ -1,105 +0,0 @@
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using System;
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using System.Net.WebSockets;
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using System.Text;
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using System.Threading;
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using System.Threading.Tasks;
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using Emby.Server.Implementations.Net;
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using Microsoft.Extensions.Logging;
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namespace Emby.Server.Implementations.SocketSharp
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{
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public class SharpWebSocket : IWebSocket
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{
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/// <summary>
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/// The logger
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/// </summary>
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private readonly ILogger _logger;
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public event EventHandler<EventArgs> Closed;
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/// <summary>
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/// Gets or sets the web socket.
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/// </summary>
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/// <value>The web socket.</value>
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private readonly WebSocket _webSocket;
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private readonly CancellationTokenSource _cancellationTokenSource = new CancellationTokenSource();
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private bool _disposed;
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public SharpWebSocket(WebSocket socket, ILogger logger)
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{
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_logger = logger ?? throw new ArgumentNullException(nameof(logger));
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_webSocket = socket ?? throw new ArgumentNullException(nameof(socket));
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}
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/// <summary>
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/// Gets the state.
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/// </summary>
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/// <value>The state.</value>
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public WebSocketState State => _webSocket.State;
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/// <summary>
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/// Sends the async.
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/// </summary>
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/// <param name="bytes">The bytes.</param>
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/// <param name="endOfMessage">if set to <c>true</c> [end of message].</param>
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/// <param name="cancellationToken">The cancellation token.</param>
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/// <returns>Task.</returns>
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public Task SendAsync(byte[] bytes, bool endOfMessage, CancellationToken cancellationToken)
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{
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return _webSocket.SendAsync(new ArraySegment<byte>(bytes), WebSocketMessageType.Binary, endOfMessage, cancellationToken);
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}
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/// <summary>
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/// Sends the asynchronous.
|
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/// </summary>
|
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/// <param name="text">The text.</param>
|
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/// <param name="endOfMessage">if set to <c>true</c> [end of message].</param>
|
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/// <param name="cancellationToken">The cancellation token.</param>
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/// <returns>Task.</returns>
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public Task SendAsync(string text, bool endOfMessage, CancellationToken cancellationToken)
|
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{
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return _webSocket.SendAsync(new ArraySegment<byte>(Encoding.UTF8.GetBytes(text)), WebSocketMessageType.Text, endOfMessage, cancellationToken);
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}
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|
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/// <summary>
|
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/// Performs application-defined tasks associated with freeing, releasing, or resetting unmanaged resources.
|
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/// </summary>
|
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public void Dispose()
|
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{
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Dispose(true);
|
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GC.SuppressFinalize(this);
|
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}
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|
||||
/// <summary>
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/// 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 (_disposed)
|
||||
{
|
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return;
|
||||
}
|
||||
|
||||
if (dispose)
|
||||
{
|
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_cancellationTokenSource.Cancel();
|
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if (_webSocket.State == WebSocketState.Open)
|
||||
{
|
||||
_webSocket.CloseAsync(WebSocketCloseStatus.NormalClosure, "Closed by client",
|
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CancellationToken.None);
|
||||
}
|
||||
Closed?.Invoke(this, EventArgs.Empty);
|
||||
}
|
||||
|
||||
_disposed = true;
|
||||
}
|
||||
|
||||
/// <summary>
|
||||
/// Gets or sets the receive action.
|
||||
/// </summary>
|
||||
/// <value>The receive action.</value>
|
||||
public Action<byte[]> OnReceiveBytes { get; set; }
|
||||
}
|
||||
}
|
||||
@ -1,135 +0,0 @@
|
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using System;
|
||||
using System.Collections.Generic;
|
||||
using System.Linq;
|
||||
using System.Net.WebSockets;
|
||||
using System.Threading;
|
||||
using System.Threading.Tasks;
|
||||
using Emby.Server.Implementations.HttpServer;
|
||||
using Emby.Server.Implementations.Net;
|
||||
using MediaBrowser.Model.Services;
|
||||
using Microsoft.AspNetCore.Http;
|
||||
using Microsoft.AspNetCore.Http.Extensions;
|
||||
using Microsoft.Extensions.Logging;
|
||||
using Microsoft.Net.Http.Headers;
|
||||
|
||||
namespace Emby.Server.Implementations.SocketSharp
|
||||
{
|
||||
public class WebSocketSharpListener : IHttpListener
|
||||
{
|
||||
private readonly ILogger _logger;
|
||||
|
||||
private CancellationTokenSource _disposeCancellationTokenSource = new CancellationTokenSource();
|
||||
private CancellationToken _disposeCancellationToken;
|
||||
|
||||
public WebSocketSharpListener(ILogger<WebSocketSharpListener> logger)
|
||||
{
|
||||
_logger = logger;
|
||||
_disposeCancellationToken = _disposeCancellationTokenSource.Token;
|
||||
}
|
||||
|
||||
public Func<Exception, IRequest, bool, bool, Task> ErrorHandler { get; set; }
|
||||
|
||||
public Func<IHttpRequest, string, string, string, CancellationToken, Task> RequestHandler { get; set; }
|
||||
|
||||
public Action<WebSocketConnectEventArgs> WebSocketConnected { get; set; }
|
||||
|
||||
private static void LogRequest(ILogger logger, HttpRequest request)
|
||||
{
|
||||
var url = request.GetDisplayUrl();
|
||||
|
||||
logger.LogInformation("WS {Url}. UserAgent: {UserAgent}", url, request.Headers[HeaderNames.UserAgent].ToString());
|
||||
}
|
||||
|
||||
public async Task ProcessWebSocketRequest(HttpContext ctx)
|
||||
{
|
||||
try
|
||||
{
|
||||
LogRequest(_logger, ctx.Request);
|
||||
var endpoint = ctx.Connection.RemoteIpAddress.ToString();
|
||||
var url = ctx.Request.GetDisplayUrl();
|
||||
|
||||
var webSocketContext = await ctx.WebSockets.AcceptWebSocketAsync(null).ConfigureAwait(false);
|
||||
var socket = new SharpWebSocket(webSocketContext, _logger);
|
||||
|
||||
WebSocketConnected(new WebSocketConnectEventArgs
|
||||
{
|
||||
Url = url,
|
||||
QueryString = ctx.Request.Query,
|
||||
WebSocket = socket,
|
||||
Endpoint = endpoint
|
||||
});
|
||||
|
||||
WebSocketReceiveResult result;
|
||||
var message = new List<byte>();
|
||||
|
||||
do
|
||||
{
|
||||
var buffer = WebSocket.CreateServerBuffer(4096);
|
||||
result = await webSocketContext.ReceiveAsync(buffer, _disposeCancellationToken);
|
||||
message.AddRange(buffer.Array.Take(result.Count));
|
||||
|
||||
if (result.EndOfMessage)
|
||||
{
|
||||
socket.OnReceiveBytes(message.ToArray());
|
||||
message.Clear();
|
||||
}
|
||||
} while (socket.State == WebSocketState.Open && result.MessageType != WebSocketMessageType.Close);
|
||||
|
||||
|
||||
if (webSocketContext.State == WebSocketState.Open)
|
||||
{
|
||||
await webSocketContext.CloseAsync(
|
||||
result.CloseStatus ?? WebSocketCloseStatus.NormalClosure,
|
||||
result.CloseStatusDescription,
|
||||
_disposeCancellationToken).ConfigureAwait(false);
|
||||
}
|
||||
|
||||
socket.Dispose();
|
||||
}
|
||||
catch (Exception ex)
|
||||
{
|
||||
_logger.LogError(ex, "AcceptWebSocketAsync error");
|
||||
if (!ctx.Response.HasStarted)
|
||||
{
|
||||
ctx.Response.StatusCode = 500;
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
public Task Stop()
|
||||
{
|
||||
_disposeCancellationTokenSource.Cancel();
|
||||
return Task.CompletedTask;
|
||||
}
|
||||
|
||||
/// <summary>
|
||||
/// Releases the unmanaged resources and disposes of the managed resources used.
|
||||
/// </summary>
|
||||
public void Dispose()
|
||||
{
|
||||
Dispose(true);
|
||||
GC.SuppressFinalize(this);
|
||||
}
|
||||
|
||||
private bool _disposed;
|
||||
|
||||
/// <summary>
|
||||
/// Releases the unmanaged resources and disposes of the managed resources used.
|
||||
/// </summary>
|
||||
/// <param name="disposing">Whether or not the managed resources should be disposed.</param>
|
||||
protected virtual void Dispose(bool disposing)
|
||||
{
|
||||
if (_disposed)
|
||||
{
|
||||
return;
|
||||
}
|
||||
|
||||
if (disposing)
|
||||
{
|
||||
Stop().GetAwaiter().GetResult();
|
||||
}
|
||||
|
||||
_disposed = true;
|
||||
}
|
||||
}
|
||||
}
|
||||
@ -1,10 +0,0 @@
|
||||
using System.Threading.Tasks;
|
||||
using MediaBrowser.Model.Net;
|
||||
|
||||
namespace Emby.Server.Implementations.WebSockets
|
||||
{
|
||||
public interface IWebSocketHandler
|
||||
{
|
||||
Task ProcessMessage(WebSocketMessage<object> message, TaskCompletionSource<bool> taskCompletionSource);
|
||||
}
|
||||
}
|
||||
@ -1,102 +0,0 @@
|
||||
using System;
|
||||
using System.Collections.Generic;
|
||||
using System.Linq;
|
||||
using System.Net.WebSockets;
|
||||
using System.Text;
|
||||
using System.Threading;
|
||||
using System.Threading.Tasks;
|
||||
using MediaBrowser.Model.Net;
|
||||
using MediaBrowser.Model.Serialization;
|
||||
using Microsoft.Extensions.Logging;
|
||||
using UtfUnknown;
|
||||
|
||||
namespace Emby.Server.Implementations.WebSockets
|
||||
{
|
||||
public class WebSocketManager
|
||||
{
|
||||
private readonly IWebSocketHandler[] _webSocketHandlers;
|
||||
private readonly IJsonSerializer _jsonSerializer;
|
||||
private readonly ILogger<WebSocketManager> _logger;
|
||||
private const int BufferSize = 4096;
|
||||
|
||||
public WebSocketManager(IWebSocketHandler[] webSocketHandlers, IJsonSerializer jsonSerializer, ILogger<WebSocketManager> logger)
|
||||
{
|
||||
_webSocketHandlers = webSocketHandlers;
|
||||
_jsonSerializer = jsonSerializer;
|
||||
_logger = logger;
|
||||
}
|
||||
|
||||
public async Task OnWebSocketConnected(WebSocket webSocket)
|
||||
{
|
||||
var taskCompletionSource = new TaskCompletionSource<bool>();
|
||||
var cancellationToken = new CancellationTokenSource().Token;
|
||||
WebSocketReceiveResult result;
|
||||
var message = new List<byte>();
|
||||
|
||||
// Keep listening for incoming messages, otherwise the socket closes automatically
|
||||
do
|
||||
{
|
||||
var buffer = WebSocket.CreateServerBuffer(BufferSize);
|
||||
result = await webSocket.ReceiveAsync(buffer, cancellationToken).ConfigureAwait(false);
|
||||
message.AddRange(buffer.Array.Take(result.Count));
|
||||
|
||||
if (result.EndOfMessage)
|
||||
{
|
||||
await ProcessMessage(message.ToArray(), taskCompletionSource).ConfigureAwait(false);
|
||||
message.Clear();
|
||||
}
|
||||
} while (!taskCompletionSource.Task.IsCompleted &&
|
||||
webSocket.State == WebSocketState.Open &&
|
||||
result.MessageType != WebSocketMessageType.Close);
|
||||
|
||||
if (webSocket.State == WebSocketState.Open)
|
||||
{
|
||||
await webSocket.CloseAsync(
|
||||
result.CloseStatus ?? WebSocketCloseStatus.NormalClosure,
|
||||
result.CloseStatusDescription,
|
||||
cancellationToken).ConfigureAwait(false);
|
||||
}
|
||||
}
|
||||
|
||||
private async Task ProcessMessage(byte[] messageBytes, TaskCompletionSource<bool> taskCompletionSource)
|
||||
{
|
||||
var charset = CharsetDetector.DetectFromBytes(messageBytes).Detected?.EncodingName;
|
||||
var message = string.Equals(charset, "utf-8", StringComparison.OrdinalIgnoreCase)
|
||||
? Encoding.UTF8.GetString(messageBytes, 0, messageBytes.Length)
|
||||
: Encoding.ASCII.GetString(messageBytes, 0, messageBytes.Length);
|
||||
|
||||
// All messages are expected to be valid JSON objects
|
||||
if (!message.StartsWith("{", StringComparison.OrdinalIgnoreCase))
|
||||
{
|
||||
_logger.LogDebug("Received web socket message that is not a json structure: {Message}", message);
|
||||
return;
|
||||
}
|
||||
|
||||
try
|
||||
{
|
||||
var info = _jsonSerializer.DeserializeFromString<WebSocketMessage<object>>(message);
|
||||
|
||||
_logger.LogDebug("Websocket message received: {0}", info.MessageType);
|
||||
|
||||
var tasks = _webSocketHandlers.Select(handler => Task.Run(() =>
|
||||
{
|
||||
try
|
||||
{
|
||||
handler.ProcessMessage(info, taskCompletionSource).ConfigureAwait(false);
|
||||
}
|
||||
catch (Exception ex)
|
||||
{
|
||||
_logger.LogError(ex, "{HandlerType} failed processing WebSocket message {MessageType}",
|
||||
handler.GetType().Name, info.MessageType ?? string.Empty);
|
||||
}
|
||||
}));
|
||||
|
||||
await Task.WhenAll(tasks);
|
||||
}
|
||||
catch (Exception ex)
|
||||
{
|
||||
_logger.LogError(ex, "Error processing web socket message");
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
Loading…
Reference in new issue