79 lines
2.9 KiB
C#
79 lines
2.9 KiB
C#
using System.Diagnostics;
|
|
using System.Globalization;
|
|
using System.Threading.Tasks;
|
|
using MediaBrowser.Controller.Configuration;
|
|
using Microsoft.AspNetCore.Http;
|
|
using Microsoft.AspNetCore.Http.Extensions;
|
|
using Microsoft.Extensions.Logging;
|
|
|
|
namespace Jellyfin.Server.Middleware
|
|
{
|
|
/// <summary>
|
|
/// Response time middleware.
|
|
/// </summary>
|
|
public class ResponseTimeMiddleware
|
|
{
|
|
private const string ResponseHeaderResponseTime = "X-Response-Time-ms";
|
|
|
|
private readonly RequestDelegate _next;
|
|
private readonly ILogger<ResponseTimeMiddleware> _logger;
|
|
|
|
private readonly bool _enableWarning;
|
|
private readonly long _warningThreshold;
|
|
|
|
/// <summary>
|
|
/// Initializes a new instance of the <see cref="ResponseTimeMiddleware"/> class.
|
|
/// </summary>
|
|
/// <param name="next">Next request delegate.</param>
|
|
/// <param name="logger">Instance of the <see cref="ILogger{ExceptionMiddleware}"/> interface.</param>
|
|
/// <param name="serverConfigurationManager">Instance of the <see cref="IServerConfigurationManager"/> interface.</param>
|
|
public ResponseTimeMiddleware(
|
|
RequestDelegate next,
|
|
ILogger<ResponseTimeMiddleware> logger,
|
|
IServerConfigurationManager serverConfigurationManager)
|
|
{
|
|
_next = next;
|
|
_logger = logger;
|
|
|
|
_enableWarning = serverConfigurationManager.Configuration.EnableSlowResponseWarning;
|
|
_warningThreshold = serverConfigurationManager.Configuration.SlowResponseThresholdMs;
|
|
}
|
|
|
|
/// <summary>
|
|
/// Invoke request.
|
|
/// </summary>
|
|
/// <param name="context">Request context.</param>
|
|
/// <returns>Task.</returns>
|
|
public async Task Invoke(HttpContext context)
|
|
{
|
|
var watch = new Stopwatch();
|
|
watch.Start();
|
|
|
|
context.Response.OnStarting(() =>
|
|
{
|
|
watch.Stop();
|
|
LogWarning(context, watch);
|
|
var responseTimeForCompleteRequest = watch.ElapsedMilliseconds;
|
|
context.Response.Headers[ResponseHeaderResponseTime] = responseTimeForCompleteRequest.ToString(CultureInfo.InvariantCulture);
|
|
return Task.CompletedTask;
|
|
});
|
|
|
|
// Call the next delegate/middleware in the pipeline
|
|
await this._next(context).ConfigureAwait(false);
|
|
}
|
|
|
|
private void LogWarning(HttpContext context, Stopwatch watch)
|
|
{
|
|
if (_enableWarning && watch.ElapsedMilliseconds > _warningThreshold)
|
|
{
|
|
_logger.LogWarning(
|
|
"Slow HTTP Response from {url} to {remoteIp} in {elapsed:g} with Status Code {statusCode}",
|
|
context.Request.GetDisplayUrl(),
|
|
context.Connection.RemoteIpAddress,
|
|
watch.Elapsed,
|
|
context.Response.StatusCode);
|
|
}
|
|
}
|
|
}
|
|
}
|