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169 lines
4.8 KiB
C#
169 lines
4.8 KiB
C#
using MediaBrowser.Model.Logging;
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using ServiceStack.Web;
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using System;
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using System.Collections.Generic;
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using System.Globalization;
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using System.IO;
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using System.Threading.Tasks;
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using MediaBrowser.Common.IO;
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using ServiceStack;
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namespace MediaBrowser.Server.Implementations.HttpServer
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{
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/// <summary>
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/// Class StreamWriter
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/// </summary>
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public class StreamWriter : IStreamWriter, IAsyncStreamWriter, IHasOptions
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{
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private ILogger Logger { get; set; }
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private static readonly CultureInfo UsCulture = new CultureInfo("en-US");
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/// <summary>
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/// Gets or sets the source stream.
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/// </summary>
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/// <value>The source stream.</value>
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private Stream SourceStream { get; set; }
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/// <summary>
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/// The _options
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/// </summary>
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private readonly IDictionary<string, string> _options = new Dictionary<string, string>();
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/// <summary>
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/// Gets the options.
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/// </summary>
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/// <value>The options.</value>
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public IDictionary<string, string> Options
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{
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get { return _options; }
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}
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public Action OnComplete { get; set; }
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public Action OnError { get; set; }
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private readonly byte[] _bytes;
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/// <summary>
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/// Initializes a new instance of the <see cref="StreamWriter" /> class.
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/// </summary>
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/// <param name="source">The source.</param>
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/// <param name="contentType">Type of the content.</param>
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/// <param name="logger">The logger.</param>
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public StreamWriter(Stream source, string contentType, ILogger logger)
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{
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if (string.IsNullOrEmpty(contentType))
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{
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throw new ArgumentNullException("contentType");
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}
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SourceStream = source;
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Logger = logger;
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Options["Content-Type"] = contentType;
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if (source.CanSeek)
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{
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Options["Content-Length"] = source.Length.ToString(UsCulture);
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}
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}
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/// <summary>
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/// Initializes a new instance of the <see cref="StreamWriter"/> class.
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/// </summary>
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/// <param name="source">The source.</param>
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/// <param name="contentType">Type of the content.</param>
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/// <param name="logger">The logger.</param>
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public StreamWriter(byte[] source, string contentType, ILogger logger)
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: this(new MemoryStream(source), contentType, logger)
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{
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if (string.IsNullOrEmpty(contentType))
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{
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throw new ArgumentNullException("contentType");
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}
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_bytes = source;
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Logger = logger;
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Options["Content-Type"] = contentType;
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Options["Content-Length"] = source.Length.ToString(UsCulture);
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}
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private const int BufferSize = 81920;
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/// <summary>
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/// Writes to.
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/// </summary>
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/// <param name="responseStream">The response stream.</param>
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public void WriteTo(Stream responseStream)
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{
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try
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{
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if (_bytes != null)
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{
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responseStream.Write(_bytes, 0, _bytes.Length);
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}
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else
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{
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using (var src = SourceStream)
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{
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src.CopyTo(responseStream, BufferSize);
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}
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}
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}
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catch (Exception ex)
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{
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Logger.ErrorException("Error streaming data", ex);
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if (OnError != null)
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{
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OnError();
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}
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throw;
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}
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finally
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{
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if (OnComplete != null)
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{
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OnComplete();
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}
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}
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}
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public async Task WriteToAsync(Stream responseStream)
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{
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try
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{
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if (_bytes != null)
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{
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await responseStream.WriteAsync(_bytes, 0, _bytes.Length);
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}
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else
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{
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using (var src = SourceStream)
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{
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await src.CopyToAsync(responseStream, BufferSize).ConfigureAwait(false);
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}
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}
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}
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catch (Exception ex)
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{
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Logger.ErrorException("Error streaming data", ex);
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if (OnError != null)
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{
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OnError();
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}
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throw;
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}
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finally
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{
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if (OnComplete != null)
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{
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OnComplete();
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}
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}
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}
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}
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}
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