qpsmtpd/sme10/0020-new-plugin-check_badmailfrom_patterns.patch

From e2ee6f13e5d0e2f064143479193fbe4bbc8aeaf8 Mon Sep 17 00:00:00 2001
From: Johan Almqvist <johan@almqvist.net>
Date: Sun, 11 Jul 2010 17:28:58 -0700
Subject: new plugin check_badmailfrom_patterns

Signed-off-by: Robert <rspier@pobox.com>
---
 plugins/check_badmailfrom_patterns |   64 ++++++++++++++++++++++++++++++++++++
 1 files changed, 64 insertions(+), 0 deletions(-)
 create mode 100644 plugins/check_badmailfrom_patterns

diff --git a/plugins/check_badmailfrom_patterns b/plugins/check_badmailfrom_patterns
new file mode 100644
index 0000000..528e49d
--- /dev/null
+++ b/plugins/check_badmailfrom_patterns
@@ -0,0 +1,64 @@
+#!/usr/bin/perl
+
+=pod
+
+=head1 SYNOPSIS
+
+This plugin checks the badmailfrom_patterns config. This allows
+special patterns to be denied (e.g. FQDN-VERP, percent hack, bangs,
+double ats).
+
+=head1 CONFIG
+
+Configuration is placed in the following file:
+
+F<config/badmailfrom_patterns>
+
+Patterns are stored in the format pattern\sresponse, where pattern
+is a Perl pattern expression. Don't forget to anchor the pattern
+(front ^ and back $) if you want to restrict it from matching
+anywhere in the string.
+
+ ^streamsendbouncer@.*\.mailengine1\.com$    Your right-hand side VERP doesn't fool me
+ ^return.*@.*\.pidplate\.biz$                I don' want it regardless of subdomain
+ ^admin.*\.ppoonn400\.com$
+
+=head1 AUTHOR
+
+Johan Almqvist <johan-qpsmtpd@almqvist.net> based on L<check_badmailfrom>
+
+This software is free software and may be distributed under the same
+terms as qpsmtpd itself.
+
+=cut
+
+sub hook_mail {
+    my ($self, $transaction, $sender, %param) = @_;
+
+    my @badmailfrom = $self->qp->config("badmailfrom_patterns")
+      or return (DECLINED);
+
+    return (DECLINED) if ($sender->format eq "<>");
+
+    my $host = lc $sender->host;
+    my $from = lc($sender->user) . '@' . $host;
+
+    for (@badmailfrom) {
+        my ($pattern, $response) = split /\s+/, $_, 2;
+        next unless $from =~ /$pattern/;
+        $response = "Your envelope sender is in my badmailfrom_patterns list"
+          unless $response;
+        $transaction->notes('badmailfrom_patterns', $response);
+    }
+    return (DECLINED);
+}
+
+sub hook_rcpt {
+    my ($self, $transaction, $rcpt, %param) = @_;
+    my $note = $transaction->notes('badmailfrom_patterns');
+    if ($note) {
+        $self->log(LOGINFO, $note);
+        return (DENY, $note);
+    }
+    return (DECLINED);
+}
-- 
1.7.2.2

1	stephdl	1.1	From e2ee6f13e5d0e2f064143479193fbe4bbc8aeaf8 Mon Sep 17 00:00:00 2001
2			From: Johan Almqvist <johan@almqvist.net>
3			Date: Sun, 11 Jul 2010 17:28:58 -0700
4			Subject: new plugin check_badmailfrom_patterns
5
6			Signed-off-by: Robert <rspier@pobox.com>
7			---
8			plugins/check_badmailfrom_patterns \| 64 ++++++++++++++++++++++++++++++++++++
9			1 files changed, 64 insertions(+), 0 deletions(-)
10			create mode 100644 plugins/check_badmailfrom_patterns
11
12			diff --git a/plugins/check_badmailfrom_patterns b/plugins/check_badmailfrom_patterns
13			new file mode 100644
14			index 0000000..528e49d
15			--- /dev/null
16			+++ b/plugins/check_badmailfrom_patterns
17			@@ -0,0 +1,64 @@
18			+#!/usr/bin/perl
19			+
20			+=pod
21			+
22			+=head1 SYNOPSIS
23			+
24			+This plugin checks the badmailfrom_patterns config. This allows
25			+special patterns to be denied (e.g. FQDN-VERP, percent hack, bangs,
26			+double ats).
27			+
28			+=head1 CONFIG
29			+
30			+Configuration is placed in the following file:
31			+
32			+F<config/badmailfrom_patterns>
33			+
34			+Patterns are stored in the format pattern\sresponse, where pattern
35			+is a Perl pattern expression. Don't forget to anchor the pattern
36			+(front ^ and back $) if you want to restrict it from matching
37			+anywhere in the string.
38			+
39			+ ^streamsendbouncer@.*\.mailengine1\.com$ Your right-hand side VERP doesn't fool me
40			+ ^return.@.\.pidplate\.biz$ I don' want it regardless of subdomain
41			+ ^admin.*\.ppoonn400\.com$
42			+
43			+=head1 AUTHOR
44			+
45			+Johan Almqvist <johan-qpsmtpd@almqvist.net> based on L<check_badmailfrom>
46			+
47			+This software is free software and may be distributed under the same
48			+terms as qpsmtpd itself.
49			+
50			+=cut
51			+
52			+sub hook_mail {
53			+ my ($self, $transaction, $sender, %param) = @_;
54			+
55			+ my @badmailfrom = $self->qp->config("badmailfrom_patterns")
56			+ or return (DECLINED);
57			+
58			+ return (DECLINED) if ($sender->format eq "<>");
59			+
60			+ my $host = lc $sender->host;
61			+ my $from = lc($sender->user) . '@' . $host;
62			+
63			+ for (@badmailfrom) {
64			+ my ($pattern, $response) = split /\s+/, $_, 2;
65			+ next unless $from =~ /$pattern/;
66			+ $response = "Your envelope sender is in my badmailfrom_patterns list"
67			+ unless $response;
68			+ $transaction->notes('badmailfrom_patterns', $response);
69			+ }
70			+ return (DECLINED);
71			+}
72			+
73			+sub hook_rcpt {
74			+ my ($self, $transaction, $rcpt, %param) = @_;
75			+ my $note = $transaction->notes('badmailfrom_patterns');
76			+ if ($note) {
77			+ $self->log(LOGINFO, $note);
78			+ return (DENY, $note);
79			+ }
80			+ return (DECLINED);
81			+}
82			--
83			1.7.2.2
84