[j-nsp] commit script to prevent duplicate service def' on SRX?

[Phil Shafer]

Phil Mayers writes:
>To save me the work, does anyone know of a commit script that will 
>prevent people defining services which duplicate the JunOS or existing 
>user-defined ones?
>Are the built-in defs (under 
>"groups/junos-defaults/applications/application/$name") in the candidate 
>XML config? In which case it's easy, but if not, what the best way to 
>get them?

They aren't in the commit script view, but you can get them
via an RPC.  The shame is that you can't use set:intersection()
to find the overlap, since it addresses _exactly_ the same nodes,
not nodes with the same content.  But here's a simple script
that hopefully addresses your needs.

[Disclaimer: I tested this under juise, but not on a live box.]

Thanks,
 Phil

---------------
version 1.1;

ns jcs extension = "http://xml.juniper.net/junos/commit-scripts/1.0";

import "../import/junos.xsl";

match configuration {
    var $rpc = <get-configuration database="committed"> {
	<configuration> {
	    <groups> {
		<name> "junos-defaults";
		<applications>;
	    }
	}
    }
    var $res = jcs:invoke($rpc);

    var $apps = applications;
    var $defs = $res/groups/applications/application/name;
    var $mine = applications/application/name;

    for-each ($mine[. == $defs]) {
	<warning> {
	    call jcs:edit-path($dot = ..);
	    call jcs:statement($dot = ..);
	    <message> "reuse of junos-defaults application";
	}
    }
}