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// Licensed to the .NET Foundation under one or more agreements.
// The .NET Foundation licenses this file to you under the MIT license.
namespace Microsoft.AspNetCore.Server.Kestrel.Core.Internal.Http2;
/* https://tools.ietf.org/html/rfc7540#section-6.2
+---------------+
|Pad Length? (8)|
+-+-------------+-----------------------------------------------+
|E| Stream Dependency? (31) |
+-+-------------+-----------------------------------------------+
| Weight? (8) |
+-+-------------+-----------------------------------------------+
| Header Block Fragment (*) ...
+---------------------------------------------------------------+
| Padding (*) ...
+---------------------------------------------------------------+
*/
internal partial class Http2Frame
{
public Http2HeadersFrameFlags HeadersFlags
{
get => (Http2HeadersFrameFlags)Flags;
set => Flags = (byte)value;
}
public bool HeadersEndHeaders => (HeadersFlags & Http2HeadersFrameFlags.END_HEADERS) == Http2HeadersFrameFlags.END_HEADERS;
public bool HeadersEndStream => (HeadersFlags & Http2HeadersFrameFlags.END_STREAM) == Http2HeadersFrameFlags.END_STREAM;
public bool HeadersHasPadding => (HeadersFlags & Http2HeadersFrameFlags.PADDED) == Http2HeadersFrameFlags.PADDED;
public bool HeadersHasPriority => (HeadersFlags & Http2HeadersFrameFlags.PRIORITY) == Http2HeadersFrameFlags.PRIORITY;
public byte HeadersPadLength { get; set; }
public int HeadersStreamDependency { get; set; }
public byte HeadersPriorityWeight { get; set; }
private int HeadersPayloadOffset => (HeadersHasPadding ? 1 : 0) + (HeadersHasPriority ? 5 : 0);
public int HeadersPayloadLength => PayloadLength - HeadersPayloadOffset - HeadersPadLength;
public void PrepareHeaders(Http2HeadersFrameFlags flags, int streamId)
{
PayloadLength = 0;
Type = Http2FrameType.HEADERS;
HeadersFlags = flags;
StreamId = streamId;
}
}
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