Updating: Changes in Plexus 3.0

Administrators

Developers

The main thing you need to worry about is that incoming path names are no longer filtered for special characters. There is a new routine called &main'safeopen that can be used to open files with names derived from user data. The rest shouldn't affect code in the gateway itself (unless you want to use the new query facilities to preprocess the query data).

• $path is now 8-bit data and gateways using it to derive file paths should use &main'safeopen("package'FH", $file); to open files (it works just like open but always opens $file for read-only). Of course, if you open files that are defined within your program then there is no danger as always.
• Gateway configuration is now done in local.conf and has a new (easier to use) syntax.
• $_ changed to $path (shouldn't affect the gateway code, just the local.conf information).
• There are two new support routines for dealing with query data: $pstring = &main'printable($string) converts binary data to a printable string for using in the document itself and @fields = &main'splitquery($query); which splits the query on ``+'' and converts the %## escapes to data (which means that you must be careful using $query data, as always).