This file is indexed.

/usr/share/munin/plugins/postfix_mailstats is in munin-node 1.4.6-3ubuntu3.

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
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
#!/usr/bin/perl -w
# -*- perl -*-

=head1 NAME

postfix_mailstats - Plugin to monitor the number of mails delivered and
rejected by postfix

=head1 CONFIGURATION

Configuration parameters for /etc/munin/postfix_mailstats,
if you need to override the defaults below:

 [postfix_mailstats]
  env.logdir  - Which logfile to use
  env.logfile - What file to read in logdir

=head2 DEFAULT CONFIGURATION

 [postfix_mailstats]
  env.logdir  /var/log
  env.logfile mail.log

=head1 AUTHOR

Records show that the plugin was contributed by Nicolai Langfeldt in
2003.  Nicolai can't find anything in his email about this and expects
the plugin is based on the corresponding exim plugin - to which it now
bears no resemblence.

=head1 LICENSE

Unknown license

=head1 MAGIC MARKERS

=begin comment

These magic markers are used by munin-node-configure when installing
munin-node.

=end comment

 #%# family=manual
 #%# capabilities=autoconf

=head1 RANDOM COMMENTS

Would be cool if someone ported this to Munin::Plugin for both state
file and log tailing.

=cut

my $statefile = $ENV{'MUNIN_PLUGSTATE'} . "/munin-plugin-postfix_mailstats.state";
my $pos;
my $delivered = 0;
my $rejects = {};
my $LOGDIR  = $ENV{'logdir'}  || '/var/log';
my $LOGFILE = $ENV{'logfile'} || 'mail.log';

my $logfile = "$LOGDIR/$LOGFILE";

if ( $ARGV[0] and $ARGV[0] eq "autoconf" )
{
    my $logfile;
    if (-d $LOGDIR)
    {
	if (-f $logfile)
	{
            if (-r $logfile)
            {
                print "yes\n";
                exit 0;
            }
            else
            {
                print "no (logfile '$logfile' not readable)\n";
            }
	}
	else
	{
	    print "no (logfile '$logfile' not found)\n";
	}
    }
    else
    {
        print "no (could not find logdir '$LOGDIR')\n";
    }

    exit 0;
}


if ( -f $statefile)
{
    open (IN, '<', $statefile) or die "Unable to open state-file: $!\n";
    if (<IN> =~ /^(\d+):(\d+)/)
    {
	($pos, $delivered) = ($1, $2);
    }
    while (<IN>)
    {
    	if (/^([0-9a-z.\-]+):(\d+)$/)
	{
		$rejects->{$1} = $2;
	}
    }
    close IN;
}

if (! -f $logfile)
{
    print "delivered.value U\n";
    foreach my $i (sort keys %{$rejects})
    {
    	print "r$i.value U\n";
    }
    exit 0;
}


$startsize = (stat $logfile)[7];

if (!defined $pos)
{
    # Initial run.
    $pos = $startsize;
}

parseLogfile($logfile, $pos, $startsize);
$pos = $startsize;

if ( $ARGV[0] and $ARGV[0] eq "config" )
{
    print "graph_title Postfix message throughput\n";
    print "graph_args --base 1000 -l 0\n";
    print "graph_vlabel mails / \${graph_period}\n";
    print "graph_scale  no\n";
    print "graph_total  Total\n";
    print "graph_category postfix\n";
    print "delivered.label delivered\n";
    print "delivered.type DERIVE\n";
    print "delivered.draw AREA\n";
    print "delivered.min 0\n";
    foreach my $i (sort keys %{$rejects})
    {
	    print "r$i.label reject $i\n";
	    print "r$i.type DERIVE\n";
	    print "r$i.draw STACK\n";
	    print "r$i.min 0\n";
    }
    exit 0;
}

print "delivered.value $delivered\n";
foreach my $i (sort keys %{$rejects})
{
	print "r$i.value ", $rejects->{$i}, "\n";
}

if(-l $statefile) {
	die("$statefile is a symbolic link, refusing to touch it.");
}				
open (OUT, '>', $statefile) or die "Unable to open statefile: $!\n";
print OUT "$pos:$delivered\n";
foreach my $i (sort keys %{$rejects})
{
	print OUT "$i:", $rejects->{$i}, "\n";
}
close OUT;

sub parseLogfile 
{    
    my ($fname, $start, $stop) = @_;
    open (LOGFILE, $fname)
    	or die "Unable to open logfile $fname for reading: $!\n";
    seek (LOGFILE, $start, 0)
    	or die "Unable to seek to $start in $fname: $!\n";

    while (tell (LOGFILE) < $stop) 
    {
	my $line = <LOGFILE>;
	chomp ($line);

	if ($line =~ /qmgr.*from=.*size=[0-9]*/) 
	{
	    $delivered++;
	} 
	elsif ($line =~ /postfix\/smtpd.*reject: \S+ \S+ \S+ (\S+)/ ||
	       $line =~ /postfix\/cleanup.* reject: (\S+)/)
	{
	    $rejects->{$1}++;
	}
    }
    close(LOGFILE) or warn "Error closing $fname: $!\n";    
}

# vim:syntax=perl