private void ExtractMultipartHeader(Encoding contentEncoding, out string partID, out string partTransferEncoding)
{
partID = partTransferEncoding = null;
while (true)
{
var buffer = ReadLine();
var lastLine = contentEncoding.GetString(buffer).Trim();
if (string.IsNullOrEmpty(lastLine))
{
break;
}
var tempContentID = XRoadHelper.ExtractValue("content-id:", lastLine, null);
if (tempContentID != null)
{
partID = tempContentID.Trim().Trim('<', '>');
}
var tempTransferEncoding = XRoadHelper.ExtractValue("content-transfer-encoding:", lastLine, null);
if (tempTransferEncoding != null)
{
partTransferEncoding = tempTransferEncoding;
}
}
}
private string GetMultipartBoundary()
{
return(XRoadHelper.ExtractValue("boundary=", contentTypeHeader, ";")?.Trim().Trim('"'));
}
private string GetMultipartStartContentID()
{
return(XRoadHelper.ExtractValue("start=", contentTypeHeader, ";")?.Trim().Trim('"'));
}
private Encoding GetContentEncoding()
{
var contentType = XRoadHelper.ExtractValue("charset=", contentTypeHeader, ";")?.Trim().Trim('"');
return(string.IsNullOrWhiteSpace(contentType) || contentType.ToUpper().Equals("UTF-8") ? XRoadEncoding.Utf8 : Encoding.GetEncoding(contentType));
}