/usr/lib/news/bin/control/checkgroups.pl is in inn2 2.5.2+20110413-1build1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 | ## $Id: checkgroups.pl 8552 2009-07-18 13:09:36Z iulius $
##
## checkgroups control message handler.
##
## Copyright 2001 by Marco d'Itri <md@linux.it>
##
## Redistribution and use in source and binary forms, with or without
## modification, are permitted provided that the following conditions
## are met:
##
## 1. Redistributions of source code must retain the above copyright
## notice, this list of conditions and the following disclaimer.
##
## 2. Redistributions in binary form must reproduce the above copyright
## notice, this list of conditions and the following disclaimer in the
## documentation and/or other materials provided with the distribution.
use strict;
sub control_checkgroups {
my ($par, $sender, $replyto, $site, $action, $log, $approved,
$article, $charset_from, $charset_to, $exclusionpats,
$droppats, $maxchanges) = @_;
my ($newsgrouppats) = @$par;
my $head = $article->head;
my @headers = split(/\r?\n/, $head->stringify);
my @body = split(/\r?\n/, $article->stringify_body);
my @newbody;
my $charset_message;
if (defined $head->mime_attr('Content-Type.charset')) {
$charset_message = $head->mime_attr('Content-Type.charset');
}
foreach (@body) {
my ($ngname, $ngdesc) = split(/\s+/, $_, 2);
my $charset_newsgroup = $charset_message;
next if ($ngname !~ /$newsgrouppats/);
next if ($exclusionpats and $ngname =~ /$exclusionpats/);
next if ($droppats and $ngname =~ /$droppats/);
# Find the right charset if absent or forced by control.ctl.
foreach (@$charset_from) {
my ($group, $charset) = split /:/;
if ($ngname =~ /$group/) {
if (not defined $charset_newsgroup or $charset =~ /=force/) {
$charset_newsgroup = $charset;
$charset_newsgroup =~ s/\^(.+)\$/$1/;
$charset_newsgroup =~ s/\\//g;
$charset_newsgroup =~ s/=force//;
}
last;
}
}
if (not defined $charset_newsgroup
or not defined Encode::find_encoding($charset_newsgroup)) {
$charset_newsgroup = "cp1252"; # Default charset, when undefined.
}
# Properly encode the newsgroup description.
Encode::from_to($ngdesc, $charset_newsgroup, $charset_to);
push(@newbody, $ngname."\t".$ngdesc);
}
# We do not go on if there is no changes to do.
return if ($#newbody < 0);
if ($action eq 'mail') {
my $mail = sendmail("checkgroups by $sender");
print $mail "$sender posted the following checkgroups message:\n\n";
print $mail map { s/^~/~~/; "$_\n" } @headers;
print $mail <<END;
If you want to process it, feed the body
of the message to docheckgroups while logged
in as user ID "$INN::Config::newsuser":
$INN::Config::pathbin/docheckgroups -u '$newsgrouppats' '$exclusionpats' <<zRbJ
END
print $mail map { s/^~/~~/; "$_\n" } @newbody;
print $mail "zRbJ\n";
close $mail or logdie("Cannot send mail: $!");
} elsif ($action eq 'log') {
if ($log) {
# The checkgroups is written unprocessed (@body and not @newbody).
logger($log, "checkgroups by $sender", $article);
} else {
logmsg("checkgroups by $sender");
}
} elsif ($action eq 'doit') {
if (defined &local_docheckgroups) {
local_docheckgroups(\@newbody, $newsgrouppats, $exclusionpats,
$maxchanges, $log, $sender);
} else {
docheckgroups(\@newbody, $newsgrouppats, $exclusionpats,
$maxchanges, $log, $sender);
}
}
}
sub docheckgroups {
my ($body, $newsgrouppats, $exclusionpats, $maxchanges, $log, $sender) = @_;
my $tempfile = "$INN::Config::tmpdir/checkgroups.$$";
open(TEMPART, ">$tempfile.art")
or logdie("Cannot open $tempfile.art: $!");
print TEMPART map { s/^~/~~/; "$_\n" } @$body;
close TEMPART;
open(OLDIN, '<&STDIN') or die $!;
open(OLDOUT, '>&STDOUT') or die $!;
open(STDIN, "$tempfile.art") or die $!;
open(STDOUT, ">$tempfile") or die $!;
my $st = system("$INN::Config::pathbin/docheckgroups", "-u",
$newsgrouppats, $exclusionpats);
logdie('Cannot run docheckgroups: ' . $!) if $st == -1;
logdie('docheckgroups returned status ' . ($st & 255)) if $st > 0;
close(STDIN);
close(STDOUT);
open(STDIN, '<&OLDIN') or die $!;
open(STDOUT, '>&OLDOUT') or die $!;
open(TEMPFILE, $tempfile) or logdie("Cannot open $tempfile: $!");
my @output = <TEMPFILE>;
chop @output;
# There is no need to send an empty mail.
if ($#output > 0) {
my $dochanges = 1;
my @newmaxchanges = @$maxchanges;
foreach my $line (@output) {
last if !$dochanges;
if ($line =~ /^\s*\S*ctlinnd \S+ (\S+)/) {
my $ngname = $1;
foreach my $i (0..$#newmaxchanges) {
my ($group, $value) = split (/:/, $newmaxchanges[$i]);
if ($ngname =~ /$group/) {
$value--;
if ($value < 0) {
$dochanges = 0;
}
$newmaxchanges[$i] = "$group:$value";
last;
}
}
}
}
if ($dochanges) {
open(OLDIN, '<&STDIN') or die $!;
open(OLDOUT, '>&STDOUT') or die $!;
open(STDIN, "$tempfile") or die $!;
open(STDOUT, ">$tempfile.modact") or die $!;
my $st = system("$INN::Config::pathbin/mod-active");
logdie('Cannot run mod-active: ' . $!) if $st == -1;
logdie('mod-active returned status ' . ($st & 255)) if $st > 0;
close(STDIN);
close(STDOUT);
open(STDIN, '<&OLDIN') or die $!;
open(STDOUT, '>&OLDOUT') or die $!;
if ($log) {
unshift(@output, '');
unshift(@output, '######################################################################');
unshift(@output, '# This script has already been successfully executed by controlchan. #');
unshift(@output, '######################################################################');
logger($log, "checkgroups by $sender processed (changes applied)",
\@output);
}
} else {
unshift(@output, '');
unshift(@output, '################################################');
unshift(@output, '# This script was NOT executed by controlchan. #');
unshift(@output, '################################################');
logger($log || 'mail', "checkgroups by $sender *not* processed (too many changes)",
\@output);
}
} else {
logmsg("checkgroups by $sender processed (no change)");
}
close TEMPFILE;
unlink($tempfile, "$tempfile.art", "$tempfile.modact");
}
1;
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