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#!/usr/bin/perl -w
# statslog - Rearrange and output selected parts of slapd's statslog output.
# $OpenLDAP$
# This work is part of OpenLDAP Software <http://www.openldap.org/>.
#
# Copyright 1998-2022 The OpenLDAP Foundation.
# Portions Copyright 2004 Hallvard B. Furuseth.
# All rights reserved.
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted only as authorized by the OpenLDAP
# Public License.
#
# A copy of this license is available in the file LICENSE in the
# top-level directory of the distribution or, alternatively, at
# <http://www.OpenLDAP.org/license.html>.
sub usage {
die join("", @_, <<'EOM');
Usage: statslog [options] [logfiles; may be .gz or .bz2 files]
Output selected parts of slapd's statslog output (LDAP request/response
log to syslog or stderr; loglevel 256), grouping log lines by LDAP
connection. Lines with no connection are excluded by default.
Options:
--brief -b Brief output (omit time, host/process name/ID).
--exclude=RE -e RE Exclude connections whose output matches REgexp.
--include=RE -i RE Only include connections matching REgexp.
--EXCLUDE=RE -E RE Case-sensitive '--exclude'.
--INCLUDE=RE -I RE Case-sensitive '--include'.
--loose -l Include "loose" lines (lines with no connection).
--no-loose -L RE Only exclude the "loose" lines that match RE.
--join -j Join the inputs as if they were one big log file.
Each file must start where the previous left off.
--no-join -J Do not --join. (Can be useful with --sort.)
--sort -s Sort input files by age. Implies --join.
--trace -t Print file names when read. Implies --no-join.
All --exclude/include options are applied. Note: --exclude/include are
unreliable without --join/sort for connections spanning several log files.
EOM
}
########################################################################
use bytes;
use strict;
use Getopt::Long;
# Globals
my %conns; # Hash (connection number -> output)
my @loose; # Collected output with no connection number
# Command line options
my($brief, @filters, @conditions, $no_loose);
my($join_files, $sort_files, $trace, $getopt_ok);
# Handle --include/INCLUDE/exclude/EXCLUDE options
sub filter_opt {
my($opt, $regexp) = @_;
push(@conditions, sprintf('$lines %s /$filters[%d]/om%s',
(lc($opt) eq 'include' ? "=~" : "!~"),
scalar(@filters),
($opt eq lc($opt) ? "i" : "")));
push(@filters, $regexp);
}
# Parse options at compile time so some can become constants to optimize away
BEGIN {
&Getopt::Long::Configure(qw(bundling no_ignore_case));
$getopt_ok = GetOptions("brief|b" => \$brief,
"include|i=s" => \&filter_opt,
"exclude|e=s" => \&filter_opt,
"INCLUDE|I=s" => \&filter_opt,
"EXCLUDE|E=s" => \&filter_opt,
"join|j" => \$join_files,
"no-join|J" => sub { $join_files = 0; },
"sort|s" => \$sort_files,
"loose|l" => sub { $no_loose = ".^"; },
"no-loose|L=s" => \$no_loose,
"trace|t" => \$trace);
}
usage() unless $getopt_ok;
usage("--trace is incompatible with --join.\n") if $trace && $join_files;
$join_files = 1 if !defined($join_files) && $sort_files && !$trace;
use constant BRIEF => !!$brief;
use constant LOOSE => defined($no_loose) && ($no_loose eq ".^" ? 2 : 1);
# Build sub out(header, connection number) to output one connection's data
my $out_body = (LOOSE
? ' if (@loose) { print "\n", @loose; @loose = (); } '
: '');
$out_body .= ' print "\n", $_[0], $lines; ';
$out_body = " if (" . join("\n && ", @conditions) . ") {\n$out_body\n}"
if @conditions;
eval <<EOM;
sub out {
my \$lines = delete(\$conns{\$_[1]});
$out_body
}
1;
EOM
die $@ if $@;
# Read and output log lines from one file
sub do_file {
local(@ARGV) = @_;
my($conn, $line, $act);
while (<>) {
if (BRIEF
? (($conn, $line, $act) = /\bconn=(\d+) (\S+ (\S+).*\n)/)
: (($conn, $act) = /\bconn=(\d+) \S+ (\S+)/ )) {
$conns{$conn} .= (BRIEF ? $line : $_);
out("", $conn) if $act eq 'closed';
} elsif (LOOSE && (LOOSE > 1 || !/$no_loose/omi)) {
s/^\w{3} [ \d]+:\d\d:\d\d [^:]*: // if BRIEF;
push(@loose, $_);
}
}
final() unless $join_files;
}
# Output log lines for unfinished connections
sub final {
if (%conns) {
for my $conn (sort keys %conns) {
out("UNFINISHED:\n", $conn);
}
die if %conns;
}
if (LOOSE && @loose) { print "\n", @loose; @loose = (); }
}
# Main program
if (!@ARGV) {
# Read from stdin
do_file();
} else {
if ($sort_files && @ARGV > 1) {
# Sort files by last modified time; oldest first
my @fileinfo;
for my $file (@ARGV) {
my $age = -M $file;
if (defined($age)) {
push(@fileinfo, [$age, $file]);
} else {
print STDERR "File not found: $file\n";
}
}
exit(1) unless @fileinfo;
@ARGV = map { $_->[1] } sort { $b->[0] <=> $a->[0] } @fileinfo;
}
# Prepare to pipe .gz, .bz2 and .bz files through gunzip or bunzip2
my %type2prog = ("gz" => "gunzip", "bz2" => "bunzip2", "bz" => "bunzip2");
for (@ARGV) {
if (/\.(gz|bz2?)$/) {
my $type = $1;
die "Bad filename: $_\n" if /^[+-]|[^\w\/.,:%=+-]|^$/;
$_ = "$type2prog{$type} -c $_ |";
}
}
# Process the files
for my $file (@ARGV) {
print "\n$file:\n" if $trace;
do_file($file);
}
}
final();
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