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Remove caching and content length

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David 2020-07-22 10:39:48 +02:00
parent 3514813eb4
commit 07e56850be
1 changed files with 2 additions and 89 deletions
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91
Jellyfin.Api/Helpers/FileStreamResponseHelpers.cs
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@ -1,7 +1,5 @@
using System;
using System.Globalization;
using System.IO;
using System.Linq;
using System.Net.Http;
using System.Threading;
using System.Threading.Tasks;
@ -10,7 +8,6 @@ using MediaBrowser.Controller.MediaEncoding;
using MediaBrowser.Model.IO;
using Microsoft.AspNetCore.Http;
using Microsoft.AspNetCore.Mvc;
using Microsoft.Extensions.Primitives;
using Microsoft.Net.Http.Headers;
namespace Jellyfin.Api.Helpers
@ -35,7 +32,6 @@ namespace Jellyfin.Api.Helpers
CancellationTokenSource cancellationTokenSource)
{
HttpClient httpClient = new HttpClient();
var responseHeaders = controller.Response.Headers;
if (state.RemoteHttpHeaders.TryGetValue(HeaderNames.UserAgent, out var useragent))
{
@ -45,13 +41,7 @@ namespace Jellyfin.Api.Helpers
var response = await httpClient.GetAsync(state.MediaPath).ConfigureAwait(false);
var contentType = response.Content.Headers.ContentType.ToString();
responseHeaders[HeaderNames.AcceptRanges] = "none";
// Seeing cases of -1 here
if (response.Content.Headers.ContentLength.HasValue && response.Content.Headers.ContentLength.Value >= 0)
{
responseHeaders[HeaderNames.ContentLength] = response.Content.Headers.ContentLength.Value.ToString(CultureInfo.InvariantCulture);
}
controller.Response.Headers[HeaderNames.AcceptRanges] = "none";
if (isHeadRequest)
{
@ -74,7 +64,6 @@ namespace Jellyfin.Api.Helpers
/// <param name="isHeadRequest">Whether the current request is a HTTP HEAD request so only the headers get returned.</param>
/// <param name="controller">The <see cref="ControllerBase"/> managing the response.</param>
/// <returns>An <see cref="ActionResult"/> the file.</returns>
// TODO: caching doesn't work
public static ActionResult GetStaticFileResult(
string path,
string contentType,
@ -83,52 +72,7 @@ namespace Jellyfin.Api.Helpers
bool isHeadRequest,
ControllerBase controller)
{
bool disableCaching = false;
if (controller.Request.Headers.TryGetValue(HeaderNames.CacheControl, out StringValues headerValue))
{
disableCaching = headerValue.FirstOrDefault().Contains("no-cache", StringComparison.InvariantCulture);
}
bool parsingSuccessful = DateTime.TryParseExact(controller.Request.Headers[HeaderNames.IfModifiedSince], "ddd, dd MMM yyyy HH:mm:ss \"GMT\"", new CultureInfo("en-US", false), DateTimeStyles.AssumeUniversal | DateTimeStyles.AdjustToUniversal, out DateTime ifModifiedSinceHeader);
// if the parsing of the IfModifiedSince header was not successfull, disable caching
if (!parsingSuccessful)
{
disableCaching = true;
}
controller.Response.ContentType = contentType;
controller.Response.Headers.Add(HeaderNames.Age, Convert.ToInt64((DateTime.UtcNow - dateLastModified).TotalSeconds).ToString(CultureInfo.InvariantCulture));
controller.Response.Headers.Add(HeaderNames.Vary, HeaderNames.Accept);
if (disableCaching)
{
controller.Response.Headers.Add(HeaderNames.CacheControl, "no-cache, no-store, must-revalidate");
controller.Response.Headers.Add(HeaderNames.Pragma, "no-cache, no-store, must-revalidate");
}
else
{
if (cacheDuration.HasValue)
{
controller.Response.Headers.Add(HeaderNames.CacheControl, "public, max-age=" + cacheDuration.Value.TotalSeconds);
}
else
{
controller.Response.Headers.Add(HeaderNames.CacheControl, "public");
}
controller.Response.Headers.Add(HeaderNames.LastModified, dateLastModified.ToUniversalTime().ToString("ddd, dd MMM yyyy HH:mm:ss \"GMT\"", new CultureInfo("en-US", false)));
// if the image was not modified since "ifModifiedSinceHeader"-header, return a HTTP status code 304 not modified
if (!(dateLastModified > ifModifiedSinceHeader))
{
if (ifModifiedSinceHeader.Add(cacheDuration!.Value) < DateTime.UtcNow)
{
controller.Response.StatusCode = StatusCodes.Status304NotModified;
return new ContentResult();
}
}
}
// if the request is a head request, return a NoContent result with the same headers as it would with a GET request
if (isHeadRequest)
@ -164,27 +108,13 @@ namespace Jellyfin.Api.Helpers
TranscodingJobType transcodingJobType,
CancellationTokenSource cancellationTokenSource)
{
IHeaderDictionary responseHeaders = controller.Response.Headers;
// Use the command line args with a dummy playlist path
var outputPath = state.OutputFilePath;
responseHeaders[HeaderNames.AcceptRanges] = "none";
controller.Response.Headers[HeaderNames.AcceptRanges] = "none";
var contentType = state.GetMimeType(outputPath);
// TODO: The isHeadRequest is only here because ServiceStack will add Content-Length=0 to the response
// TODO (from api-migration): Investigate if this is still neccessary as we migrated away from ServiceStack
var contentLength = state.EstimateContentLength || isHeadRequest ? GetEstimatedContentLength(state) : null;
if (contentLength.HasValue)
{
responseHeaders[HeaderNames.ContentLength] = contentLength.Value.ToString(CultureInfo.InvariantCulture);
}
else
{
responseHeaders.Remove(HeaderNames.ContentLength);
}
// Headers only
if (isHeadRequest)
{
@ -215,22 +145,5 @@ namespace Jellyfin.Api.Helpers
transcodingLock.Release();
}
}
/// <summary>
/// Gets the length of the estimated content.
/// </summary>
/// <param name="state">The state.</param>
/// <returns>System.Nullable{System.Int64}.</returns>
private static long? GetEstimatedContentLength(StreamState state)
{
var totalBitrate = state.TotalOutputBitrate ?? 0;
if (totalBitrate > 0 && state.RunTimeTicks.HasValue)
{
return Convert.ToInt64(totalBitrate * TimeSpan.FromTicks(state.RunTimeTicks.Value).TotalSeconds / 8);
}
return null;
}
}
}