Input fn="insert-filter" filter="http-decompression"
The above directive instructs the insert-filter function to add a custom filter, that is, http-decompression to the filter stack. The http-decompression filter will decompress the incoming HTTP request data, before it goes to the service stage. For more information about predefined filters, see Input and Output. For more information, Chapter 3, Creating Custom Filters, in Oracle iPlanet Web Server 7.0.9 NSAPI Developer’s Guide