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245 lines
No EOL
7.6 KiB
C#
245 lines
No EOL
7.6 KiB
C#
using System.Collections.Specialized;
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using MediaBrowser.Controller.Net;
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using MediaBrowser.Model.Logging;
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using MediaBrowser.Server.Implementations.Logging;
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using ServiceStack;
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using ServiceStack.Web;
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using SocketHttpListener.Net;
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using System;
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using System.Collections.Generic;
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using System.Linq;
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using System.Text;
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using System.Threading.Tasks;
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namespace MediaBrowser.Server.Implementations.HttpServer.SocketSharp
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{
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public class WebSocketSharpListener : IHttpListener
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{
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private HttpListener _listener;
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private readonly ILogger _logger;
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private readonly Action<string> _endpointListener;
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private readonly string _certificatePath;
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public WebSocketSharpListener(ILogger logger, Action<string> endpointListener,
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string certificatePath)
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{
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_logger = logger;
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_endpointListener = endpointListener;
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_certificatePath = certificatePath;
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}
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public Action<Exception, IRequest> ErrorHandler { get; set; }
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public Func<IHttpRequest, Uri, Task> RequestHandler { get; set; }
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public Action<WebSocketConnectingEventArgs> WebSocketConnecting { get; set; }
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public Action<WebSocketConnectEventArgs> WebSocketConnected { get; set; }
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public void Start(IEnumerable<string> urlPrefixes)
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{
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if (_listener == null)
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_listener = new HttpListener(new PatternsLogger(_logger), _certificatePath);
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foreach (var prefix in urlPrefixes)
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{
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_logger.Info("Adding HttpListener prefix " + prefix);
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_listener.Prefixes.Add(prefix);
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}
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_listener.OnContext = ProcessContext;
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_listener.Start();
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}
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private void ProcessContext(HttpListenerContext context)
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{
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Task.Factory.StartNew(() => InitTask(context));
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}
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private void InitTask(HttpListenerContext context)
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{
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try
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{
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var task = this.ProcessRequestAsync(context);
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task.ContinueWith(x => HandleError(x.Exception, context), TaskContinuationOptions.OnlyOnFaulted | TaskContinuationOptions.AttachedToParent);
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//if (task.Status == TaskStatus.Created)
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//{
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// task.RunSynchronously();
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//}
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}
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catch (Exception ex)
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{
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HandleError(ex, context);
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}
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}
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private Task ProcessRequestAsync(HttpListenerContext context)
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{
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var request = context.Request;
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LogHttpRequest(request);
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if (request.IsWebSocketRequest)
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{
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ProcessWebSocketRequest(context);
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return Task.FromResult(true);
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}
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if (string.IsNullOrEmpty(context.Request.RawUrl))
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return ((object)null).AsTaskResult();
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var httpReq = GetRequest(context);
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return RequestHandler(httpReq, request.Url);
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}
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/// <summary>
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/// Logs the HTTP request.
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/// </summary>
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/// <param name="request">The request.</param>
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private void LogHttpRequest(HttpListenerRequest request)
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{
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var endpoint = request.LocalEndPoint;
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if (endpoint != null)
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{
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var address = endpoint.ToString();
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_endpointListener(address);
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}
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LogRequest(_logger, request);
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}
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private void ProcessWebSocketRequest(HttpListenerContext ctx)
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{
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try
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{
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var endpoint = ctx.Request.RemoteEndPoint.ToString();
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var url = ctx.Request.RawUrl;
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var queryString = new NameValueCollection(ctx.Request.QueryString ?? new NameValueCollection());
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var connectingArgs = new WebSocketConnectingEventArgs
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{
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Url = url,
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QueryString = queryString,
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Endpoint = endpoint
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};
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if (WebSocketConnecting != null)
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{
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WebSocketConnecting(connectingArgs);
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}
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if (connectingArgs.AllowConnection)
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{
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_logger.Debug("Web socket connection allowed");
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var webSocketContext = ctx.AcceptWebSocket(null);
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if (WebSocketConnected != null)
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{
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WebSocketConnected(new WebSocketConnectEventArgs
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{
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Url = url,
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QueryString = queryString,
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WebSocket = new SharpWebSocket(webSocketContext.WebSocket, _logger),
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Endpoint = endpoint
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});
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}
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}
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else
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{
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_logger.Warn("Web socket connection not allowed");
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ctx.Response.StatusCode = 401;
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ctx.Response.Close();
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}
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}
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catch (Exception ex)
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{
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_logger.ErrorException("AcceptWebSocketAsync error", ex);
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ctx.Response.StatusCode = 500;
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ctx.Response.Close();
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}
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}
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private IHttpRequest GetRequest(HttpListenerContext httpContext)
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{
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var operationName = httpContext.Request.GetOperationName();
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var req = new WebSocketSharpRequest(httpContext, operationName, RequestAttributes.None, _logger);
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req.RequestAttributes = req.GetAttributes();
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return req;
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}
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/// <summary>
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/// Logs the request.
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/// </summary>
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/// <param name="logger">The logger.</param>
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/// <param name="request">The request.</param>
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private static void LogRequest(ILogger logger, HttpListenerRequest request)
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{
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var log = new StringBuilder();
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var headers = string.Join(",", request.Headers.AllKeys.Where(i => !string.Equals(i, "cookie", StringComparison.OrdinalIgnoreCase) && !string.Equals(i, "Referer", StringComparison.OrdinalIgnoreCase)).Select(k => k + "=" + request.Headers[k]));
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log.AppendLine("Ip: " + request.RemoteEndPoint + ". Headers: " + headers);
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var type = request.IsWebSocketRequest ? "Web Socket" : "HTTP " + request.HttpMethod;
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logger.LogMultiline(type + " " + request.Url, LogSeverity.Info, log);
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}
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private void HandleError(Exception ex, HttpListenerContext context)
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{
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var httpReq = GetRequest(context);
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if (ErrorHandler != null)
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{
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ErrorHandler(ex, httpReq);
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}
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}
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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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foreach (var prefix in _listener.Prefixes.ToList())
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{
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_listener.Prefixes.Remove(prefix);
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}
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_listener.Close();
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}
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}
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public void Dispose()
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{
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Dispose(true);
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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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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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}
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} |