61 lines
2.8 KiB
C#
61 lines
2.8 KiB
C#
using System.IO;
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using System.IO.Compression;
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using System.Text;
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using Swan.Logging;
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namespace EmbedIO
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{
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partial class HttpContextExtensions
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{
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/// <summary>
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/// <para>Wraps the request input stream and returns a <see cref="Stream"/> that can be used directly.</para>
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/// <para>Decompression of compressed request bodies is implemented if specified in the web server's options.</para>
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/// </summary>
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/// <param name="this">The <see cref="IHttpContext"/> on which this method is called.</param>
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/// <returns>
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/// <para>A <see cref="Stream"/> that can be used to write response data.</para>
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/// <para>This stream MUST be disposed when finished writing.</para>
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/// </returns>
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/// <seealso cref="OpenRequestText"/>
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/// <seealso cref="WebServerOptionsBase.SupportCompressedRequests"/>
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public static Stream OpenRequestStream(this IHttpContext @this)
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{
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var stream = @this.Request.InputStream;
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var encoding = @this.Request.Headers[HttpHeaderNames.ContentEncoding]?.Trim();
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switch (encoding)
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{
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case CompressionMethodNames.Gzip:
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if (@this.SupportCompressedRequests)
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return new GZipStream(stream, CompressionMode.Decompress);
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break;
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case CompressionMethodNames.Deflate:
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if (@this.SupportCompressedRequests)
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return new DeflateStream(stream, CompressionMode.Decompress);
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break;
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case CompressionMethodNames.None:
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case null:
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return stream;
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}
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$"[{@this.Id}] Unsupported request content encoding \"{encoding}\", sending 400 Bad Request..."
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.Warn(nameof(OpenRequestStream));
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throw HttpException.BadRequest($"Unsupported content encoding \"{encoding}\"");
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}
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/// <summary>
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/// <para>Wraps the request input stream and returns a <see cref="TextReader" /> that can be used directly.</para>
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/// <para>Decompression of compressed request bodies is implemented if specified in the web server's options.</para>
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/// </summary>
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/// <param name="this">The <see cref="IHttpContext" /> on which this method is called.</param>
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/// <returns>
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/// <para>A <see cref="TextReader" /> that can be used to read the request body as text.</para>
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/// <para>This reader MUST be disposed when finished reading.</para>
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/// </returns>
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/// <seealso cref="OpenRequestStream"/>
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/// <seealso cref="WebServerOptionsBase.SupportCompressedRequests"/>
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public static TextReader OpenRequestText(this IHttpContext @this)
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=> new StreamReader(OpenRequestStream(@this), @this.Request.ContentEncoding);
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}
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} |