public virtual bool PrepareUpgradeResponse(IChannelHandlerContext ctx, IFullHttpRequest upgradeRequest, HttpHeaders headers)
{
try
{
// Decode the HTTP2-Settings header and set the settings on the handler to make
// sure everything is fine with the request.
var upgradeHeaders = upgradeRequest.Headers.GetAll(Http2CodecUtil.HttpUpgradeSettingsHeader);
var upgradeHeadersCount = upgradeHeaders.Count;
if (upgradeHeadersCount <= 0 || upgradeHeadersCount > 1)
{
ThrowHelper.ThrowArgumentException_MustOnlyOne();
}
_settings = DecodeSettingsHeader(ctx, upgradeHeaders[0]);
// Everything looks good.
return(true);
}
catch (Exception cause)
{
if (Logger.InfoEnabled)
{
Logger.ErrorDuringUpgradeToHTTP2(cause);
}
return(false);
}
}