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Subject: Re: Taboo question
From: tneff @ panix . com (Tom Neff)
Date: Fri, 30 Jan 1998 06:55:46 -0500
To: Jason L Tibbitts III <tibbs @ hpc . uh . edu>, majordomo-workers @ GreatCircle . COM
In-reply-to: Jason L Tibbitts III <tibbs@hpc.uh.edu> "Taboo question" (Jan 30, 2:18am)

On Jan 30,  2:18am, Jason L Tibbitts III wrote:
> If you had the concept of the severity of a taboo/admin match, where each
> rule/regexp could have a "badness" associated with it, how would you deal
> with multiple taboo matches?  Would the severities be cumulative, or would
> you just use the worst one?
> 
> The idea is to make a distinction between "zubscribe" at the beginning of
> a line and embedded in the text somewhere, so that you could, say, let
> zubscribers commit transgressions which non-zubscribers would not be
> allowed.  This is very close to working, but I can't decide on appropriate
> semantics.

Frankly I think that the best of all worlds would be to add something like

	taboo_eval = <<EOF
		$B =~ m{\bzsubscribe\b} and ! $MEMBER
		$H =~ m{^From.*hotmail}m and $B =~ m{CASH}
		length($B) > 5000 and ! $B =~ m{Ratings Summary}
	EOF

to be handled as follows:

 * Special variables would be initialized: B = body, H = header, MEMBER = boolean
   whether poster also subscribes, etc, use your imagination
 * The taboo_eval string would be converted to an array of evals:

	 @taboo_evals = grep(length, split(/\s*\n\s*/,$taboo_eval))

 * The message would be tested against that array of evals:

	foreach $te (@taboo_evals) {
		eval "\$bounce = ($eval);"
		break unless $bounce;
	}

Unfortunately there are security issues here that would make taboo_eval useful only
for "friendly" sites.  A simpler fallback that does what Jason wants would be to
extend the syntax of 'taboo' strings to allow one or more flags at the end:

	taboo_body = <<EOF
		/zubscribe/,N
	EOF

where N means nonmember, and you could add other flags as you think of them.

I don't know whether cumulative "scores" of transgressions would help particularly.

-- 
Tom Neff :: tneff@panix.com :: <URL:http://www.panix.com/~tneff/>


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