/usr/share/munin/plugins/mailman is in munin-plugins-extra 2.0.25-2.
This file is owned by root:root, with mode 0o755.
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 | #!/usr/bin/perl
# -*- perl -*-
=head1 NAME
mailman - Plugin to monitor activity on mailman mailing list
management systems
=head1 CONFIGURATION
Configuration for this plugin depends on the mailman's settings on the
system. Here are the defaults:
[mailman]
env.logfile /var/log/mailman/post
env.libdir /var/lib/mailman
env.lister /usr/lib/mailman/bin/list_members
=head1 AUTHOR
Author unknown. Source code strongly related to the Exim plugin of old.
=head1 LICENSE
License unknown
=head1 MAGIC MARKERS
#%# family=contrib
=cut
$statefile = "$ENV{MUNIN_PLUGSTATE}/munin-mailman-log.state";
$pos = undef;
$posts = 0;
$members = 0;
# System paths
$logfile = $ENV{'logfile'} || "/var/log/mailman/post";
$libdir = $ENV{'libdir'} || "/var/lib/mailman";
$lister = $ENV{'lister'} || "/usr/lib/mailman/bin/list_members";
if (-f "$logfile.0")
{
$rotlogfile = $logfile . ".0";
}
elsif (-f "$logfile.1")
{
$rotlogfile = $logfile . ".1";
}
elsif (-f "$logfile.01")
{
$rotlogfile = $logfile . ".01";
}
else
{
$rotlogfile = $logfile . ".0";
}
if($ARGV[0] and $ARGV[0] eq "config") {
print "graph_title Mailman usage\n";
print "graph_args --base 1000\n";
print "posts.label posts per minute\n";
print "posts.type DERIVE\n";
print "posts.min 0\n";
print "members.label members\n";
print "members.type GAUGE\n";
exit 0;
}
if(! -f $logfile &&
! -d $libdir &&
! -x $lister &&
! -f $rotlogfile) {
print "posts.value U\n";
print "posts.extinfo Can't find any log files\n";
print "members.value U\n";
exit 0;
}
if(-f $statefile) {
open(IN, "<$statefile") or die "Can't open $statefile for reading: $!";
if(<IN> =~ /^(\d+):(\d+)/) {
($pos,$posts) = ($1, $2);
}
close(IN);
}
$startsize = (stat $logfile)[7];
if(!defined $pos) {
# Initial run.
$pos = $startsize;
$startsize = 0;
} elsif($startsize < $pos) {
# Log rotated
parseMailmanLog($rotlogfile, $pos, (stat $rotlogfile)[7]);
$pos = 0;
}
parseMailmanLog($logfile, $pos, $startsize);
$pos = $startsize;
parseMailmanLists();
print "posts.value $posts\n";
print "members.value $members\n";
open (OUT, ">$statefile") or die "Can't open $statefile for writing: $!";
print OUT "$pos:$posts\n";
close OUT;
sub parseMailmanLog {
my($fname, $start, $stop) = @_;
open(LOGFILE, $fname) or die "Can't open $fname for reading: $!";
seek(LOGFILE, $start, 0) or die "Can't seek in $fname: $!";
while(tell(LOGFILE) < $stop) {
my $line = <LOGFILE>;
if($line =~ / post to/) {
$posts++;
}
}
close(LOGFILE);
}
sub parseMailmanLists {
my @domains = &mailmanDomains;
for(my $i = 0; $i < @domains; $i++) {
my @lists = &mailmanLists($domains[$i]);
for(my $j = 0; $j < @lists; $j++) {
$members += &mailmanMembers($domains[$i], $lists[$j]);
}
}
}
sub mailmanDomains {
my @domains;
if (-e "$libdir/data") {
@domains = (".");
} else {
opendir(DOMAINS, $libdir) or
die "Can't open directory $libdir for reading: $!";
@domains = grep ( { !/^\@/ && !/^\./ && -d "$libdir/$_" }
readdir(DOMAINS) );
closedir(DOMAINS);
}
return @domains;
}
sub mailmanLists {
my ($domain) = @_;
opendir(LISTS, "$libdir/$domain/lists") or
die "Can't open directory $libdir/$domain/lists for reading: $!";
my @lists = grep ( { !/^\@/ && !/^\./ && -d "$libdir/$domain/lists/$_" }
readdir(LISTS) );
closedir(LISTS);
return @lists;
}
sub mailmanMembers {
my ($domain, $list) = @_;
return 0 unless $domain;
return 0 unless $list;
my $cnt = 0;
open(MEMBERS, "DOMAIN=$domain $lister $list|") or
die "Cannot execute pipe: $lister $list: $!";
while(<MEMBERS>) {
$cnt++;
}
close(MEMBERS);
return $cnt;
}
# vim:syntax=perl
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