428 lines
14 KiB
C#
428 lines
14 KiB
C#
using Funq;
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using MediaBrowser.Common;
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using MediaBrowser.Common.Extensions;
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using MediaBrowser.Common.Net;
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using MediaBrowser.Controller.Net;
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using MediaBrowser.Model.Logging;
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using MediaBrowser.Server.Implementations.HttpServer.NetListener;
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using MediaBrowser.Server.Implementations.HttpServer.SocketSharp;
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using ServiceStack;
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using ServiceStack.Api.Swagger;
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using ServiceStack.Host;
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using ServiceStack.Host.Handlers;
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using ServiceStack.Host.HttpListener;
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using ServiceStack.Logging;
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using ServiceStack.Web;
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using System;
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using System.Collections.Generic;
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using System.IO;
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using System.Linq;
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using System.Reflection;
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using System.Threading;
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using System.Threading.Tasks;
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namespace MediaBrowser.Server.Implementations.HttpServer
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{
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public class HttpListenerHost : ServiceStackHost, IHttpServer
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{
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private string HandlerPath { get; set; }
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private string DefaultRedirectPath { get; set; }
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private readonly ILogger _logger;
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public IEnumerable<string> UrlPrefixes { get; private set; }
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private readonly List<IRestfulService> _restServices = new List<IRestfulService>();
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private IHttpListener _listener;
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private readonly ContainerAdapter _containerAdapter;
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public event EventHandler<WebSocketConnectEventArgs> WebSocketConnected;
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private readonly List<string> _localEndpoints = new List<string>();
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private readonly ReaderWriterLockSlim _localEndpointLock = new ReaderWriterLockSlim();
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private readonly bool _supportsNativeWebSocket;
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/// <summary>
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/// Gets the local end points.
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/// </summary>
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/// <value>The local end points.</value>
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public IEnumerable<string> LocalEndPoints
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{
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get
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{
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_localEndpointLock.EnterReadLock();
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var list = _localEndpoints.ToList();
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_localEndpointLock.ExitReadLock();
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return list;
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}
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}
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public HttpListenerHost(IApplicationHost applicationHost,
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ILogManager logManager,
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string serviceName,
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string handlerPath,
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string defaultRedirectPath,
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bool supportsNativeWebSocket,
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params Assembly[] assembliesWithServices)
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: base(serviceName, assembliesWithServices)
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{
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DefaultRedirectPath = defaultRedirectPath;
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_supportsNativeWebSocket = supportsNativeWebSocket;
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HandlerPath = handlerPath;
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_logger = logManager.GetLogger("HttpServer");
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_containerAdapter = new ContainerAdapter(applicationHost);
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}
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public override void Configure(Container container)
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{
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HostConfig.Instance.DefaultRedirectPath = DefaultRedirectPath;
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HostConfig.Instance.MapExceptionToStatusCode = new Dictionary<Type, int>
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{
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{typeof (InvalidOperationException), 422},
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{typeof (ResourceNotFoundException), 404},
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{typeof (FileNotFoundException), 404},
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{typeof (DirectoryNotFoundException), 404},
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{typeof (Implementations.Security.AuthenticationException), 401},
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{typeof (UnauthorizedAccessException), 401}
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};
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HostConfig.Instance.DebugMode = true;
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HostConfig.Instance.LogFactory = LogManager.LogFactory;
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// The Markdown feature causes slow startup times (5 mins+) on cold boots for some users
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// Custom format allows images
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HostConfig.Instance.EnableFeatures = Feature.Csv | Feature.Html | Feature.Json | Feature.Jsv | Feature.Metadata | Feature.Xml | Feature.CustomFormat;
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container.Adapter = _containerAdapter;
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Plugins.Add(new SwaggerFeature());
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Plugins.Add(new CorsFeature(allowedHeaders: "Content-Type, Authorization, Range, X-MediaBrowser-Token"));
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//Plugins.Add(new AuthFeature(() => new AuthUserSession(), new IAuthProvider[] {
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// new SessionAuthProvider(_containerAdapter.Resolve<ISessionContext>()),
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//}));
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PreRequestFilters.Add((httpReq, httpRes) =>
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{
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//Handles Request and closes Responses after emitting global HTTP Headers
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if (string.Equals(httpReq.Verb, "OPTIONS", StringComparison.OrdinalIgnoreCase))
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{
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httpRes.EndRequest(); //add a 'using ServiceStack;'
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}
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});
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HostContext.GlobalResponseFilters.Add(new ResponseFilter(_logger).FilterResponse);
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}
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public override void OnAfterInit()
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{
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SetAppDomainData();
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base.OnAfterInit();
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}
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public override void OnConfigLoad()
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{
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base.OnConfigLoad();
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Config.HandlerFactoryPath = string.IsNullOrEmpty(HandlerPath)
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? null
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: HandlerPath;
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Config.MetadataRedirectPath = string.IsNullOrEmpty(HandlerPath)
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? "metadata"
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: PathUtils.CombinePaths(HandlerPath, "metadata");
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}
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protected override ServiceController CreateServiceController(params Assembly[] assembliesWithServices)
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{
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var types = _restServices.Select(r => r.GetType()).ToArray();
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return new ServiceController(this, () => types);
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}
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public virtual void SetAppDomainData()
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{
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//Required for Mono to resolve VirtualPathUtility and Url.Content urls
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var domain = Thread.GetDomain(); // or AppDomain.Current
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domain.SetData(".appDomain", "1");
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domain.SetData(".appVPath", "/");
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domain.SetData(".appPath", domain.BaseDirectory);
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if (string.IsNullOrEmpty(domain.GetData(".appId") as string))
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{
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domain.SetData(".appId", "1");
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}
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if (string.IsNullOrEmpty(domain.GetData(".domainId") as string))
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{
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domain.SetData(".domainId", "1");
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}
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}
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public override ServiceStackHost Start(string listeningAtUrlBase)
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{
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StartListener();
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return this;
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}
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private void OnRequestReceived(string localEndPoint)
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{
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var ignore = localEndPoint.IndexOf("::", StringComparison.OrdinalIgnoreCase) != -1 ||
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localEndPoint.StartsWith("127.", StringComparison.OrdinalIgnoreCase) ||
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localEndPoint.StartsWith("localhost", StringComparison.OrdinalIgnoreCase) ||
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localEndPoint.StartsWith("169.", StringComparison.OrdinalIgnoreCase);
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if (ignore)
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{
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return;
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}
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if (_localEndpointLock.TryEnterWriteLock(100))
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{
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var list = _localEndpoints.ToList();
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list.Remove(localEndPoint);
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list.Insert(0, localEndPoint);
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_localEndpointLock.ExitWriteLock();
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}
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}
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/// <summary>
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/// Starts the Web Service
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/// </summary>
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private void StartListener()
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{
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HostContext.Config.HandlerFactoryPath = ListenerRequest.GetHandlerPathIfAny(UrlPrefixes.First());
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_listener = _supportsNativeWebSocket && NativeWebSocket.IsSupported
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? _listener = new HttpListenerServer(_logger, OnRequestReceived)
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//? _listener = new WebSocketSharpListener(_logger, OnRequestReceived)
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: _listener = new WebSocketSharpListener(_logger, OnRequestReceived);
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_listener.WebSocketHandler = WebSocketHandler;
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_listener.ErrorHandler = ErrorHandler;
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_listener.RequestHandler = RequestHandler;
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_listener.Start(UrlPrefixes);
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}
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private void WebSocketHandler(WebSocketConnectEventArgs args)
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{
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if (WebSocketConnected != null)
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{
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WebSocketConnected(this, args);
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}
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}
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private void ErrorHandler(Exception ex, IRequest httpReq)
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{
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try
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{
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var httpRes = httpReq.Response;
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if (httpRes.IsClosed)
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{
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return;
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}
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var errorResponse = new ErrorResponse
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{
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ResponseStatus = new ResponseStatus
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{
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ErrorCode = ex.GetType().GetOperationName(),
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Message = ex.Message,
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StackTrace = ex.StackTrace
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}
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};
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var contentType = httpReq.ResponseContentType;
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var serializer = HostContext.ContentTypes.GetResponseSerializer(contentType);
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if (serializer == null)
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{
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contentType = HostContext.Config.DefaultContentType;
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serializer = HostContext.ContentTypes.GetResponseSerializer(contentType);
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}
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var httpError = ex as IHttpError;
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if (httpError != null)
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{
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httpRes.StatusCode = httpError.Status;
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httpRes.StatusDescription = httpError.StatusDescription;
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}
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else
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{
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httpRes.StatusCode = 500;
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}
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httpRes.ContentType = contentType;
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serializer(httpReq, errorResponse, httpRes);
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httpRes.Close();
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}
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catch (Exception errorEx)
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{
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_logger.ErrorException("Error this.ProcessRequest(context)(Exception while writing error to the response)", errorEx);
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}
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}
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/// <summary>
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/// Shut down the Web Service
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/// </summary>
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public void Stop()
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{
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if (_listener != null)
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{
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_listener.Stop();
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}
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}
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/// <summary>
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/// Overridable method that can be used to implement a custom hnandler
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/// </summary>
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/// <param name="httpReq">The HTTP req.</param>
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/// <param name="url">The URL.</param>
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/// <returns>Task.</returns>
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protected Task RequestHandler(IHttpRequest httpReq, Uri url)
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{
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var date = DateTime.Now;
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var httpRes = httpReq.Response;
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var operationName = httpReq.OperationName;
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var localPath = url.LocalPath;
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if (string.Equals(localPath, "/" + HandlerPath + "/", StringComparison.OrdinalIgnoreCase))
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{
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httpRes.RedirectToUrl(DefaultRedirectPath);
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return Task.FromResult(true);
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}
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if (string.Equals(localPath, "/" + HandlerPath, StringComparison.OrdinalIgnoreCase))
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{
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httpRes.RedirectToUrl(HandlerPath + "/" + DefaultRedirectPath);
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return Task.FromResult(true);
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}
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if (string.Equals(localPath, "/", StringComparison.OrdinalIgnoreCase))
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{
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httpRes.RedirectToUrl(HandlerPath + "/" + DefaultRedirectPath);
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return Task.FromResult(true);
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}
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if (string.IsNullOrEmpty(localPath))
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{
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httpRes.RedirectToUrl("/" + HandlerPath + "/" + DefaultRedirectPath);
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return Task.FromResult(true);
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}
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var handler = HttpHandlerFactory.GetHandler(httpReq);
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var remoteIp = httpReq.RemoteIp;
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var serviceStackHandler = handler as IServiceStackHandler;
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if (serviceStackHandler != null)
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{
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var restHandler = serviceStackHandler as RestHandler;
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if (restHandler != null)
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{
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httpReq.OperationName = operationName = restHandler.RestPath.RequestType.GetOperationName();
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}
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var task = serviceStackHandler.ProcessRequestAsync(httpReq, httpRes, operationName);
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task.ContinueWith(x => httpRes.Close(), TaskContinuationOptions.OnlyOnRanToCompletion | TaskContinuationOptions.AttachedToParent);
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//Matches Exceptions handled in HttpListenerBase.InitTask()
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var urlString = url.ToString();
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task.ContinueWith(x =>
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{
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var statusCode = httpRes.StatusCode;
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var duration = DateTime.Now - date;
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LoggerUtils.LogResponse(_logger, statusCode, urlString, remoteIp, duration);
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}, TaskContinuationOptions.None);
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return task;
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}
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return new NotImplementedException("Cannot execute handler: " + handler + " at PathInfo: " + httpReq.PathInfo)
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.AsTaskException();
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}
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/// <summary>
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/// Adds the rest handlers.
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/// </summary>
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/// <param name="services">The services.</param>
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public void Init(IEnumerable<IRestfulService> services)
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{
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_restServices.AddRange(services);
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ServiceController = CreateServiceController();
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_logger.Info("Calling ServiceStack AppHost.Init");
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base.Init();
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}
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//public override RouteAttribute[] GetRouteAttributes(System.Type requestType)
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//{
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// var routes = base.GetRouteAttributes(requestType);
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// routes.Each(x => x.Path = "/api" + x.Path);
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// return routes;
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//}
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/// <summary>
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/// Releases the specified instance.
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/// </summary>
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/// <param name="instance">The instance.</param>
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public override void Release(object instance)
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{
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// Leave this empty so SS doesn't try to dispose our objects
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}
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private bool _disposed;
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private readonly object _disposeLock = new object();
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protected virtual void Dispose(bool disposing)
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{
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if (_disposed) return;
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base.Dispose();
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lock (_disposeLock)
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{
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if (_disposed) return;
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if (disposing)
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{
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Stop();
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}
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//release unmanaged resources here...
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_disposed = true;
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}
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}
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public override 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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public void StartServer(IEnumerable<string> urlPrefixes)
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{
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UrlPrefixes = urlPrefixes.ToList();
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Start(UrlPrefixes.First());
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}
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}
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} |