Set SE range from document, not from client request

--- cups/scheduler/ipp.c	2019-04-08 16:38:34.106031431 +0000

+++ cups/scheduler/ipp.c	2019-04-08 17:45:39.568497974 +0000

@@ -11798,6 +11798,30@

   }

   snprintf(filename, sizeof(filename), "%s/d%05d-%03d", RequestRoot, fromjob, document_number);

+  if ( is_selinux_mls_enabled() )

+  {

+	  char * fcon;

+	  context_t  jcon;

+	  const char	*range = NULL;

+	  ipp_attribute_t *attr;

+

+	  if ( getfilecon( filename, &fcon ) > 0)

+	  {

+	       cupsdLogMessage( CUPSD_LOG_DEBUG, "alt_doc_ft_job: filename context is %s",

+			  fcon );

+

+	       jcon = context_new( fcon );

+	       range = context_range_get( jcon );

+

+              attr = ippFindAttribute( job->attrs, "security-context-range", IPP_TAG_NAME );

+              ippSetString( job->attrs, &attr ,

+		 0, range );

+              cupsdLogMessage( CUPSD_LOG_ERROR, "alt_doc_ft_job: context set to: %s", range );

+	  }

+	  else {

+              cupsdLogMessage( CUPSD_LOG_ERROR, "alt_doc_ft_job: can't determine context of  %s", filename);

+	}

+  }

   if (con->filename != NULL)

     cupsdLogMessage(CUPSD_LOG_DEBUG2, "alt_doc_ft_job: con->filename is %s",