private static WebSocketDeflateCompressionOptions GetDeflateNegotiationOffer(HttpContext context)
{
WebSocketDeflateCompressionOptions compressionOptions = null;
foreach (string headerValue in context.Request.Headers.GetCommaSeparatedValues(HeaderNames.SecWebSocketExtensions))
{
NameValueWithParametersHeaderValue parsedHeaderValue;
if (NameValueWithParametersHeaderValue.TryParse(headerValue, out parsedHeaderValue) && parsedHeaderValue.Name == WEBSOCKET_PERMESSAGE_DEFLATE_EXTENSION)
{
compressionOptions = WebSocketDeflateCompressionOptions.FromHeaderValue(parsedHeaderValue);
break;
}
}
return(compressionOptions);
}
private static WebSocketDeflateCompressionProvider NegotiateDeflateCompression(HttpContext context, int?sendSegmentSize)
{
WebSocketDeflateCompressionProvider deflateCompressionProvider = null;
WebSocketDeflateCompressionOptions deflateCompressionOptions = GetDeflateNegotiationOffer(context);
if (deflateCompressionOptions != null)
{
deflateCompressionProvider = WebSocketDeflateCompressionProvider.Create(deflateCompressionOptions, sendSegmentSize);
if (deflateCompressionProvider != null)
{
SetDeflateNegotiationResponse(context, deflateCompressionProvider);
}
}
return(deflateCompressionProvider);
}
