| | | 1 | | using System.Diagnostics; |
| | | 2 | | using System.Globalization; |
| | | 3 | | using System.Threading.Tasks; |
| | | 4 | | using MediaBrowser.Common.Extensions; |
| | | 5 | | using MediaBrowser.Controller.Configuration; |
| | | 6 | | using Microsoft.AspNetCore.Http; |
| | | 7 | | using Microsoft.AspNetCore.Http.Extensions; |
| | | 8 | | using Microsoft.Extensions.Logging; |
| | | 9 | | |
| | | 10 | | namespace Jellyfin.Api.Middleware; |
| | | 11 | | |
| | | 12 | | /// <summary> |
| | | 13 | | /// Response time middleware. |
| | | 14 | | /// </summary> |
| | | 15 | | public class ResponseTimeMiddleware |
| | | 16 | | { |
| | | 17 | | private const string ResponseHeaderResponseTime = "X-Response-Time-ms"; |
| | | 18 | | |
| | | 19 | | private readonly RequestDelegate _next; |
| | | 20 | | private readonly ILogger<ResponseTimeMiddleware> _logger; |
| | | 21 | | |
| | | 22 | | /// <summary> |
| | | 23 | | /// Initializes a new instance of the <see cref="ResponseTimeMiddleware"/> class. |
| | | 24 | | /// </summary> |
| | | 25 | | /// <param name="next">Next request delegate.</param> |
| | | 26 | | /// <param name="logger">Instance of the <see cref="ILogger{ExceptionMiddleware}"/> interface.</param> |
| | | 27 | | public ResponseTimeMiddleware( |
| | | 28 | | RequestDelegate next, |
| | | 29 | | ILogger<ResponseTimeMiddleware> logger) |
| | | 30 | | { |
| | 22 | 31 | | _next = next; |
| | 22 | 32 | | _logger = logger; |
| | 22 | 33 | | } |
| | | 34 | | |
| | | 35 | | /// <summary> |
| | | 36 | | /// Invoke request. |
| | | 37 | | /// </summary> |
| | | 38 | | /// <param name="context">Request context.</param> |
| | | 39 | | /// <param name="serverConfigurationManager">Instance of the <see cref="IServerConfigurationManager"/> interface.</p |
| | | 40 | | /// <returns>Task.</returns> |
| | | 41 | | public async Task Invoke(HttpContext context, IServerConfigurationManager serverConfigurationManager) |
| | | 42 | | { |
| | | 43 | | var startTimestamp = Stopwatch.GetTimestamp(); |
| | | 44 | | |
| | | 45 | | var enableWarning = serverConfigurationManager.Configuration.EnableSlowResponseWarning; |
| | | 46 | | var warningThreshold = serverConfigurationManager.Configuration.SlowResponseThresholdMs; |
| | | 47 | | context.Response.OnStarting(() => |
| | | 48 | | { |
| | | 49 | | var responseTime = Stopwatch.GetElapsedTime(startTimestamp); |
| | | 50 | | var responseTimeMs = responseTime.TotalMilliseconds; |
| | | 51 | | if (enableWarning && responseTimeMs > warningThreshold && _logger.IsEnabled(LogLevel.Debug)) |
| | | 52 | | { |
| | | 53 | | _logger.LogDebug( |
| | | 54 | | "Slow HTTP Response from {Url} to {RemoteIP} in {Elapsed:g} with Status Code {StatusCode}", |
| | | 55 | | context.Request.GetDisplayUrl(), |
| | | 56 | | context.GetNormalizedRemoteIP(), |
| | | 57 | | responseTime, |
| | | 58 | | context.Response.StatusCode); |
| | | 59 | | } |
| | | 60 | | |
| | | 61 | | context.Response.Headers[ResponseHeaderResponseTime] = responseTimeMs.ToString(CultureInfo.InvariantCulture) |
| | | 62 | | return Task.CompletedTask; |
| | | 63 | | }); |
| | | 64 | | |
| | | 65 | | // Call the next delegate/middleware in the pipeline |
| | | 66 | | await this._next(context).ConfigureAwait(false); |
| | | 67 | | } |
| | | 68 | | } |