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|
#! /usr/bin/perl
use strict;
use warnings;
# Postfix delivery agents
my @agents = qw(discard error lmtp local pipe smtp virtual);
my $instre = qr{(?x)
\A # Absolute line start
(?:\S+ \s+){3} # Timestamp, adjust for other time formats
\S+ \s+ # Hostname
(postfix(?:-[^/\s]+)?) # Capture instance name stopping before first '/'
(?:/\S+)* # Optional non-captured '/'-delimited qualifiers
/ # Final '/' before the daemon program name
};
my $cmdpidre = qr{(?x)
\G # Continue from previous match
(\S+)\[(\d+)\]:\s+ # command[pid]:
};
my %smtpd;
my %smtp;
my %transaction;
my $i = 0;
my %seqno;
my %isagent = map { ($_, 1) } @agents;
while (<>) {
next unless m{$instre}ogc; my $inst = $1;
next unless m{$cmdpidre}ogc; my $command = $1; my $pid = $2;
if ($command eq "smtpd") {
if (m{\Gconnect from }gc) {
# Start new log
$smtpd{$pid}->{"log"} = $_; next;
}
$smtpd{$pid}->{"log"} .= $_;
if (m{\G(\w+): client=}gc) {
# Fresh transaction
my $qid = "$inst/$1";
$smtpd{$pid}->{"qid"} = $qid;
$transaction{$qid} = $smtpd{$pid}->{"log"};
$seqno{$qid} = ++$i;
next;
}
my $qid = $smtpd{$pid}->{"qid"};
$transaction{$qid} .= $_
if (defined($qid) && exists $transaction{$qid});
delete $smtpd{$pid} if (m{\Gdisconnect from}gc);
next;
}
if ($command eq "pickup") {
if (m{\G(\w+): uid=}gc) {
my $qid = "$inst/$1";
$transaction{$qid} = $_;
$seqno{$qid} = ++$i;
}
next;
}
# bounce(8) logs transaction start after cleanup(8) already logged
# the message-id, so the cleanup log entry may be first
#
if ($command eq "cleanup") {
next unless (m{\G(\w+): }gc);
my $qid = "$inst/$1";
$transaction{$qid} .= $_;
$seqno{$qid} = ++$i if (! exists $seqno{$qid});
next;
}
if ($command eq "qmgr") {
next unless (m{\G(\w+): }gc);
my $qid = "$inst/$1";
if (defined($transaction{$qid})) {
$transaction{$qid} .= $_;
if (m{\Gremoved$}gc) {
print delete $transaction{$qid}, "\n";
}
}
next;
}
# Save pre-delivery messages for smtp(8) and lmtp(8)
#
if ($command eq "smtp" || $command eq "lmtp") {
$smtp{$pid} .= $_;
if (m{\G(\w+): to=}gc) {
my $qid = "$inst/$1";
if (defined($transaction{$qid})) {
$transaction{$qid} .= $smtp{$pid};
}
delete $smtp{$pid};
}
next;
}
if ($command eq "bounce") {
if (m{\G(\w+): .*? notification: (\w+)$}gc) {
my $qid = "$inst/$1";
my $newid = "$inst/$2";
if (defined($transaction{$qid})) {
$transaction{$qid} .= $_;
}
$transaction{$newid} =
$_ . $transaction{$newid};
$seqno{$newid} = ++$i if (! exists $seqno{$newid});
}
next;
}
if ($isagent{$command}) {
if (m{\G(\w+): to=}gc) {
my $qid = "$inst/$1";
if (defined($transaction{$qid})) {
$transaction{$qid} .= $_;
}
}
next;
}
}
# Dump logs of incomplete transactions.
foreach my $qid (sort {$seqno{$a} <=> $seqno{$b}} keys %transaction) {
print $transaction{$qid}, "\n";
}
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