48 lines
1.9 KiB
Plaintext
48 lines
1.9 KiB
Plaintext
To: wietse@porcupine.org (Wietse Venema)
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Cc: postfix-users@postfix.org (Postfix users)
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Subject: regexp map patch
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In-reply-to: Your message of "Thu, 25 Feb 1999 19:51:25 CDT."
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<19990226005125.69B3C4596E@spike.porcupine.org>
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Date: Tue, 02 Mar 1999 11:04:02 +1100
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From: Andrew McNamara <andrewm@connect.com.au>
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Message-Id: <19990302000403.074C7ED7D@melang.off.connect.com.au>
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Sender: owner-postfix-users@postfix.org
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Precedence: bulk
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Return-Path: <owner-postfix-users@postfix.org>
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I've written [code] to add a regexp map type. It utilises the PCRE
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library (Perl Compatible Regular Expressions), which can be obtained
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from:
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ftp://ftp.cus.cam.ac.uk/pub/software/programs/pcre/
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You will need to add -DHAS_PCRE and a -I for the PCRE header to CCARGS,
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and add the path to the PCRE library to AUXLIBS, for example:
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make -f Makefile.init makefiles 'CCARGS=-DHAS_PCRE -I../../pcre-2.08' \
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'AUXLIBS=../../pcre-2.08/libpcre.a'
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[note: pcre versions before 2.06 are no longer compatible -- Wietse]
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One possible use is to add a line to main.cf:
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smtpd_recipient_restrictions = pcre:/opt/postfix/etc/smtprecipient
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The regular expressions are read from the file specified and compiled -
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a sample regexp file for this usage is included in the patch.
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Any feedback is appreciated (from Wietse in particular :-). Have
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fun.
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[I've changed the code so that it can be used for other Postfix
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table lookups, not just for junk mail control. In particular,
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regular expressions in canonical tables could be very useful.
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For the sake of robustness, I have disabled the matching of partial
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addresses (user@, domain, user, @domain) that is normally done with
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Postfix access control tables, canonical maps and virtual maps.
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As a side effect, pcre maps can only match user@domain strings, so
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that regexps cannot be used for local alias database lookups. That
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would be a security exposure anyway -- Wietse.]
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