diff options
Diffstat (limited to 'Jellyfin.Server/Infrastructure/SymlinkFollowingPhysicalFileResultExecutor.cs')
| -rw-r--r-- | Jellyfin.Server/Infrastructure/SymlinkFollowingPhysicalFileResultExecutor.cs | 151 |
1 files changed, 0 insertions, 151 deletions
diff --git a/Jellyfin.Server/Infrastructure/SymlinkFollowingPhysicalFileResultExecutor.cs b/Jellyfin.Server/Infrastructure/SymlinkFollowingPhysicalFileResultExecutor.cs deleted file mode 100644 index 910b5c467..000000000 --- a/Jellyfin.Server/Infrastructure/SymlinkFollowingPhysicalFileResultExecutor.cs +++ /dev/null @@ -1,151 +0,0 @@ -// The MIT License (MIT) -// -// Copyright (c) .NET Foundation and Contributors -// -// All rights reserved. -// -// Permission is hereby granted, free of charge, to any person obtaining a copy -// of this software and associated documentation files (the "Software"), to deal -// in the Software without restriction, including without limitation the rights -// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell -// copies of the Software, and to permit persons to whom the Software is -// furnished to do so, subject to the following conditions: -// -// The above copyright notice and this permission notice shall be included in all -// copies or substantial portions of the Software. -// -// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR -// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, -// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE -// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER -// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, -// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE -// SOFTWARE. - -using System; -using System.IO; -using System.Threading; -using System.Threading.Tasks; -using Microsoft.AspNetCore.Http; -using Microsoft.AspNetCore.Http.Extensions; -using Microsoft.AspNetCore.Mvc; -using Microsoft.AspNetCore.Mvc.Infrastructure; -using Microsoft.Extensions.Logging; -using Microsoft.Net.Http.Headers; - -namespace Jellyfin.Server.Infrastructure -{ - /// <inheritdoc /> - public class SymlinkFollowingPhysicalFileResultExecutor : PhysicalFileResultExecutor - { - /// <summary> - /// Initializes a new instance of the <see cref="SymlinkFollowingPhysicalFileResultExecutor"/> class. - /// </summary> - /// <param name="loggerFactory">An instance of the <see cref="ILoggerFactory"/> interface.</param> - public SymlinkFollowingPhysicalFileResultExecutor(ILoggerFactory loggerFactory) : base(loggerFactory) - { - } - - /// <inheritdoc /> - protected override FileMetadata GetFileInfo(string path) - { - var fileInfo = new FileInfo(path); - var length = fileInfo.Length; - // This may or may not be fixed in .NET 6, but looks like it will not https://github.com/dotnet/aspnetcore/issues/34371 - if ((fileInfo.Attributes & FileAttributes.ReparsePoint) == FileAttributes.ReparsePoint) - { - using var fileHandle = File.OpenHandle(path, FileMode.Open, FileAccess.Read, FileShare.ReadWrite); - length = RandomAccess.GetLength(fileHandle); - } - - return new FileMetadata - { - Exists = fileInfo.Exists, - Length = length, - LastModified = fileInfo.LastWriteTimeUtc - }; - } - - /// <inheritdoc /> - protected override async Task WriteFileAsync(ActionContext context, PhysicalFileResult result, RangeItemHeaderValue? range, long rangeLength) - { - ArgumentNullException.ThrowIfNull(context); - ArgumentNullException.ThrowIfNull(result); - - if (range is not null && rangeLength == 0) - { - return; - } - - // It's a bit of wasted IO to perform this check again, but non-symlinks shouldn't use this code - if (!IsSymLink(result.FileName)) - { - await base.WriteFileAsync(context, result, range, rangeLength).ConfigureAwait(false); - return; - } - - var response = context.HttpContext.Response; - - if (range is not null) - { - await SendFileAsync( - result.FileName, - response, - offset: range.From ?? 0L, - count: rangeLength).ConfigureAwait(false); - return; - } - - await SendFileAsync( - result.FileName, - response, - offset: 0, - count: null).ConfigureAwait(false); - } - - private async Task SendFileAsync(string filePath, HttpResponse response, long offset, long? count, CancellationToken cancellationToken = default) - { - var fileInfo = GetFileInfo(filePath); - if (offset < 0 || offset > fileInfo.Length) - { - throw new ArgumentOutOfRangeException(nameof(offset), offset, string.Empty); - } - - if (count.HasValue - && (count.Value < 0 || count.Value > fileInfo.Length - offset)) - { - throw new ArgumentOutOfRangeException(nameof(count), count, string.Empty); - } - - // Copied from SendFileFallback.SendFileAsync - const int BufferSize = 1024 * 16; - - var useRequestAborted = !cancellationToken.CanBeCanceled; - var localCancel = useRequestAborted ? response.HttpContext.RequestAborted : cancellationToken; - - var fileStream = new FileStream( - filePath, - FileMode.Open, - FileAccess.Read, - FileShare.ReadWrite, - bufferSize: BufferSize, - options: FileOptions.Asynchronous | FileOptions.SequentialScan); - await using (fileStream.ConfigureAwait(false)) - { - try - { - localCancel.ThrowIfCancellationRequested(); - fileStream.Seek(offset, SeekOrigin.Begin); - await StreamCopyOperation - .CopyToAsync(fileStream, response.Body, count, BufferSize, localCancel) - .ConfigureAwait(true); - } - catch (OperationCanceledException) when (useRequestAborted) - { - } - } - } - - private static bool IsSymLink(string path) => (File.GetAttributes(path) & FileAttributes.ReparsePoint) == FileAttributes.ReparsePoint; - } -} |