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[release/6.0] WinHttp: always read HTTP/2 streams to the end #63346

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Merged
danmoseley merged 3 commits into from
Jan 7, 2022
+71 −12
Merged

[release/6.0] WinHttp: always read HTTP/2 streams to the end #63346

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3d196b3
tests
antonfirsov Dec 15, 2021
eae9fbc
enable WINHTTP_OPTION_REQUIRE_STREAM_END on request handles
antonfirsov Dec 15, 2021
e6f111c
set WINHTTP_OPTION_REQUIRE_STREAM_END on the session handle
antonfirsov Dec 17, 2021
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enable WINHTTP_OPTION_REQUIRE_STREAM_END on request handles
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@antonfirsov
antonfirsov authored and github-actions committed Jan 4, 2022
commit eae9fbce14d5ea07e322ab0b07163aabecf979f4
1 change: 1 addition & 0 deletions src/libraries/Common/src/Interop/Windows/WinHttp/Interop.winhttp_types.cs
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Expand Up @@ -168,6 +168,7 @@ internal static partial class WinHttp

public const uint WINHTTP_OPTION_TCP_KEEPALIVE = 152;
public const uint WINHTTP_OPTION_STREAM_ERROR_CODE = 159;
public const uint WINHTTP_OPTION_REQUIRE_STREAM_END = 160;

public enum WINHTTP_WEB_SOCKET_BUFFER_TYPE
{
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16 changes: 16 additions & 0 deletions src/libraries/System.Net.Http.WinHttpHandler/src/System/Net/Http/WinHttpHandler.cs
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Expand Up @@ -1534,6 +1534,22 @@ private void SetRequestHandleHttp2Options(SafeWinHttpHandle requestHandle, Versi
{
if (NetEventSource.Log.IsEnabled()) NetEventSource.Info(this, "HTTP/2 option not supported");
}

if (requestVersion == HttpVersion20 && WinHttpTrailersHelper.OsSupportsTrailers)
{
// Setting WINHTTP_OPTION_REQUIRE_STREAM_END to TRUE is needed for WinHttp to read trailing headers
// in case the response has Content-Lenght defined.
// According to the WinHttp team, the feature-detection logic in WinHttpTrailersHelper.OsSupportsTrailers
// should also indicate the support of WINHTTP_OPTION_REQUIRE_STREAM_END.
optionData = 1;
if (!Interop.WinHttp.WinHttpSetOption(requestHandle, Interop.WinHttp.WINHTTP_OPTION_REQUIRE_STREAM_END, ref optionData))
{
if (NetEventSource.Log.IsEnabled())
{
NetEventSource.Info(this, "Failed to enable WINHTTP_OPTION_REQUIRE_STREAM_END error code: " + Marshal.GetLastWin32Error());
}
}
}
}

private void SetWinHttpOption(SafeWinHttpHandle handle, uint option, ref uint optionData)
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