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authorcrobibero <cody@robibe.ro>2020-09-03 09:29:07 -0600
committercrobibero <cody@robibe.ro>2020-09-03 09:29:07 -0600
commit5ad81f7fe6e37a7e513c3b06c5bed7a229704bbc (patch)
tree807660528f6117b151288645119af4227286433b /Emby.Server.Implementations/HttpServer/FileWriter.cs
parentb216b91e219541b805c420ebd64cdc13d3023be4 (diff)
parent3711a1978e8a400aa28dd75ce8ffb08ac43106e1 (diff)
Merge remote-tracking branch 'upstream/master' into 3.1.7
Diffstat (limited to 'Emby.Server.Implementations/HttpServer/FileWriter.cs')
-rw-r--r--Emby.Server.Implementations/HttpServer/FileWriter.cs250
1 files changed, 0 insertions, 250 deletions
diff --git a/Emby.Server.Implementations/HttpServer/FileWriter.cs b/Emby.Server.Implementations/HttpServer/FileWriter.cs
deleted file mode 100644
index 6fce8de44..000000000
--- a/Emby.Server.Implementations/HttpServer/FileWriter.cs
+++ /dev/null
@@ -1,250 +0,0 @@
-#pragma warning disable CS1591
-
-using System;
-using System.Collections.Generic;
-using System.Globalization;
-using System.IO;
-using System.Linq;
-using System.Net;
-using System.Runtime.InteropServices;
-using System.Threading;
-using System.Threading.Tasks;
-using MediaBrowser.Model.IO;
-using MediaBrowser.Model.Services;
-using Microsoft.AspNetCore.Http;
-using Microsoft.Extensions.Logging;
-using Microsoft.Net.Http.Headers;
-
-namespace Emby.Server.Implementations.HttpServer
-{
- public class FileWriter : IHttpResult
- {
- private static readonly CultureInfo UsCulture = CultureInfo.ReadOnly(new CultureInfo("en-US"));
-
- private static readonly string[] _skipLogExtensions = {
- ".js",
- ".html",
- ".css"
- };
-
- private readonly IStreamHelper _streamHelper;
- private readonly ILogger _logger;
-
- /// <summary>
- /// The _options.
- /// </summary>
- private readonly IDictionary<string, string> _options = new Dictionary<string, string>();
-
- /// <summary>
- /// The _requested ranges.
- /// </summary>
- private List<KeyValuePair<long, long?>> _requestedRanges;
-
- public FileWriter(string path, string contentType, string rangeHeader, ILogger logger, IFileSystem fileSystem, IStreamHelper streamHelper)
- {
- if (string.IsNullOrEmpty(contentType))
- {
- throw new ArgumentNullException(nameof(contentType));
- }
-
- _streamHelper = streamHelper;
-
- Path = path;
- _logger = logger;
- RangeHeader = rangeHeader;
-
- Headers[HeaderNames.ContentType] = contentType;
-
- TotalContentLength = fileSystem.GetFileInfo(path).Length;
- Headers[HeaderNames.AcceptRanges] = "bytes";
-
- if (string.IsNullOrWhiteSpace(rangeHeader))
- {
- Headers[HeaderNames.ContentLength] = TotalContentLength.ToString(CultureInfo.InvariantCulture);
- StatusCode = HttpStatusCode.OK;
- }
- else
- {
- StatusCode = HttpStatusCode.PartialContent;
- SetRangeValues();
- }
-
- FileShare = FileShare.Read;
- Cookies = new List<Cookie>();
- }
-
- private string RangeHeader { get; set; }
-
- private bool IsHeadRequest { get; set; }
-
- private long RangeStart { get; set; }
-
- private long RangeEnd { get; set; }
-
- private long RangeLength { get; set; }
-
- public long TotalContentLength { get; set; }
-
- public Action OnComplete { get; set; }
-
- public Action OnError { get; set; }
-
- public List<Cookie> Cookies { get; private set; }
-
- public FileShare FileShare { get; set; }
-
- /// <summary>
- /// Gets the options.
- /// </summary>
- /// <value>The options.</value>
- public IDictionary<string, string> Headers => _options;
-
- public string Path { get; set; }
-
- /// <summary>
- /// Gets the requested ranges.
- /// </summary>
- /// <value>The requested ranges.</value>
- protected List<KeyValuePair<long, long?>> RequestedRanges
- {
- get
- {
- if (_requestedRanges == null)
- {
- _requestedRanges = new List<KeyValuePair<long, long?>>();
-
- // Example: bytes=0-,32-63
- var ranges = RangeHeader.Split('=')[1].Split(',');
-
- foreach (var range in ranges)
- {
- var vals = range.Split('-');
-
- long start = 0;
- long? end = null;
-
- if (!string.IsNullOrEmpty(vals[0]))
- {
- start = long.Parse(vals[0], UsCulture);
- }
-
- if (!string.IsNullOrEmpty(vals[1]))
- {
- end = long.Parse(vals[1], UsCulture);
- }
-
- _requestedRanges.Add(new KeyValuePair<long, long?>(start, end));
- }
- }
-
- return _requestedRanges;
- }
- }
-
- public string ContentType { get; set; }
-
- public IRequest RequestContext { get; set; }
-
- public object Response { get; set; }
-
- public int Status { get; set; }
-
- public HttpStatusCode StatusCode
- {
- get => (HttpStatusCode)Status;
- set => Status = (int)value;
- }
-
- /// <summary>
- /// Sets the range values.
- /// </summary>
- private void SetRangeValues()
- {
- var requestedRange = RequestedRanges[0];
-
- // If the requested range is "0-", we can optimize by just doing a stream copy
- if (!requestedRange.Value.HasValue)
- {
- RangeEnd = TotalContentLength - 1;
- }
- else
- {
- RangeEnd = requestedRange.Value.Value;
- }
-
- RangeStart = requestedRange.Key;
- RangeLength = 1 + RangeEnd - RangeStart;
-
- // Content-Length is the length of what we're serving, not the original content
- var lengthString = RangeLength.ToString(CultureInfo.InvariantCulture);
- Headers[HeaderNames.ContentLength] = lengthString;
- var rangeString = $"bytes {RangeStart}-{RangeEnd}/{TotalContentLength}";
- Headers[HeaderNames.ContentRange] = rangeString;
-
- _logger.LogDebug("Setting range response values for {0}. RangeRequest: {1} Content-Length: {2}, Content-Range: {3}", Path, RangeHeader, lengthString, rangeString);
- }
-
- public async Task WriteToAsync(HttpResponse response, CancellationToken cancellationToken)
- {
- try
- {
- // Headers only
- if (IsHeadRequest)
- {
- return;
- }
-
- var path = Path;
- var offset = RangeStart;
- var count = RangeLength;
-
- if (string.IsNullOrWhiteSpace(RangeHeader) || RangeStart <= 0 && RangeEnd >= TotalContentLength - 1)
- {
- var extension = System.IO.Path.GetExtension(path);
-
- if (extension == null || !_skipLogExtensions.Contains(extension, StringComparer.OrdinalIgnoreCase))
- {
- _logger.LogDebug("Transmit file {0}", path);
- }
-
- offset = 0;
- count = 0;
- }
-
- await TransmitFile(response.Body, path, offset, count, FileShare, cancellationToken).ConfigureAwait(false);
- }
- finally
- {
- OnComplete?.Invoke();
- }
- }
-
- public async Task TransmitFile(Stream stream, string path, long offset, long count, FileShare fileShare, CancellationToken cancellationToken)
- {
- var fileOptions = FileOptions.SequentialScan;
-
- // use non-async filestream along with read due to https://github.com/dotnet/corefx/issues/6039
- if (!RuntimeInformation.IsOSPlatform(OSPlatform.Windows))
- {
- fileOptions |= FileOptions.Asynchronous;
- }
-
- using (var fs = new FileStream(path, FileMode.Open, FileAccess.Read, fileShare, IODefaults.FileStreamBufferSize, fileOptions))
- {
- if (offset > 0)
- {
- fs.Position = offset;
- }
-
- if (count > 0)
- {
- await _streamHelper.CopyToAsync(fs, stream, count, cancellationToken).ConfigureAwait(false);
- }
- else
- {
- await fs.CopyToAsync(stream, IODefaults.CopyToBufferSize, cancellationToken).ConfigureAwait(false);
- }
- }
- }
- }
-}