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using System.Threading.Tasks;
using MediaBrowser.Controller.Net;
using Microsoft.AspNetCore.Http;
namespace Jellyfin.Server.Middleware
{
/// <summary>
/// Handles WebSocket requests.
/// </summary>
public class WebSocketHandlerMiddleware
{
private readonly RequestDelegate _next;
/// <summary>
/// Initializes a new instance of the <see cref="WebSocketHandlerMiddleware"/> class.
/// </summary>
/// <param name="next">The next delegate in the pipeline.</param>
public WebSocketHandlerMiddleware(RequestDelegate next)
{
_next = next;
}
/// <summary>
/// Executes the middleware action.
/// </summary>
/// <param name="httpContext">The current HTTP context.</param>
/// <param name="webSocketManager">The WebSocket connection manager.</param>
/// <param name="websocketListener">Session manager instance.</param>
/// <returns>The async task.</returns>
public async Task Invoke(
HttpContext httpContext,
IWebSocketManager webSocketManager,
#pragma warning disable CA1801
#pragma warning disable IDE0060
// TODO: Workaround. see https://github.com/jellyfin/jellyfin/pull/3194
// Do not remove this parameter. It uses DI to create a SessionWebSocketListener which is
// required for webSocketManager events.
IWebSocketListener websocketListener)
#pragma warning restore IDE0060 // Remove unused parameter
#pragma warning restore CA1801
{
if (!httpContext.WebSockets.IsWebSocketRequest)
{
await _next(httpContext).ConfigureAwait(false);
return;
}
await webSocketManager.WebSocketRequestHandler(httpContext).ConfigureAwait(false);
}
}
}
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