/usr/share/perl5/Message/Passing/Filter/Regexp.pm is in libmessage-passing-filter-regexp-perl 0.05-1.
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 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 | package Message::Passing::Filter::Regexp;
use 5.014002;
use strict;
use warnings;
use Moo;
use MooX::Types::MooseLike::Base qw/ HashRef ArrayRef Str RegexpRef /;
use namespace::clean -except => 'meta';
use DateTime;
use JSON::Types;
use Message::Passing::Filter::Regexp::Log;
with qw/ Message::Passing::Role::Filter /;
use vars qw( $VERSION );
$VERSION = 0.05;
has format => (
is => 'ro',
isa => Str,
default => sub { ':default' },
);
has regexfile => (
is => 'ro',
isa => Str,
default => sub { '/etc/message-passing/regexfile' },
);
has capture => (
is => 'ro',
isa => ArrayRef,
default => sub { [] },
);
has mutate => (
is => 'ro',
isa => HashRef,
default => sub { {} },
);
has fromto => (
is => 'ro',
isa => HashRef,
default => sub { { '@message' => '@fields' } },
);
has _regex => (
is => 'ro',
lazy => 1,
builder => '_build_regex',
);
has _re => (
is => 'ro',
isa => RegexpRef,
lazy => 1,
builder => '_build_re',
);
has _fields => (
is => 'ro',
isa => ArrayRef,
lazy => 1,
builder => '_build_fields',
);
sub _build_regex {
my $self = shift;
Message::Passing::Filter::Regexp::Log->new(
format => $self->format,
capture => $self->capture,
regexfile => $self->regexfile,
);
}
sub _build_re {
my $self = shift;
return $self->_regex->regexp;
}
sub _build_fields {
my $self = shift;
return [ $self->_regex->capture ];
}
sub filter {
my ( $self, $message ) = @_;
while ( my ( $from, $to ) = each %{ $self->fromto } ) {
my $log_line = $message->{$from};
my %data;
my $re = $self->_re;
@data{ @{ $self->_fields } } = $log_line =~ /$re/;
for ( keys %{ $self->mutate } ) {
my $type = $self->mutate->{$_};
$data{$_} = eval "$type $data{$_}";
}
if ( defined $to ) {
$message->{$to} = {%data};
}
# put parsed fields directly in message hashref
else {
%$message = ( %$message, %data );
}
}
return $message;
}
1;
1;
__END__
=head1 NAME
Message::Passing::Filter::Regexp - Regexp Capture Filter For Message::Passing
=head1 SYNOPSIS
# regexfile
[FORMAT]
:default = %date %status %remotehost %domain %request %originhost %responsetime %upstreamtime %bytes %referer %ua %xff
:nginxaccesslog = %date %status %remotehost %bytes %responsetime
[REGEXP]
%date = (?#=date)\[(?#=ts)\d{2}\/\w{3}\/\d{4}(?::\d{2}){3}(?#!ts) [-+]\d{4}\](?#!date)
%status = (?#=status)\d+(?#!status)
%remotehost = (?#=remotehost)\S+(?#!remotehost)
%domain = (?#=domain).*?(?#!domain)
%request = (?#=request)-|(?#=method)\w+(?#!method) (?#=url).*?(?#!url) (?#=version)HTTP/\d\.\d(?#!version)(?#!request)
%originhost = (?#=originhost)-|(?#=oh).*?(?#!oh):\d+(?#!originhost)
%responsetime = (?#=responsetime)-|.*?(?#!responsetime)
%upstreamtime = (?#=upstreamtime).*?(?#!upstreamtime)
%bytes = (?#=bytes)\d+(?#!bytes)
%referer = (?#=referer)\"(?#=ref).*?(?#!ref)\"(?#!referer)
%useragent = (?#=useragent)\"(?#=ua).*?(?#!ua)\"(?#!useragent)
%xforwarderfor = (?#=xforwarderfor)\"(?#=xff).*?(?#!xff)\"(?#!xforwarderfor)
# message-passing-cli
use Message::Passing::DSL;
run_message_server message_chain {
output stdout => (
class => 'STDOUT',
);
output elasticsearch => (
class => 'ElasticSearch',
elasticsearch_servers => ['127.0.0.1:9200'],
);
encoder("encoder",
class => 'JSON',
output_to => 'stdout',
output_to => 'es',
);
filter regexp => (
class => 'Regexp',
format => ':nginxaccesslog',
capture => [qw( ts status remotehost url oh responsetime upstreamtime bytes )]
output_to => 'encoder',
);
filter logstash => (
class => 'ToLogstash',
output_to => 'regexp',
);
decoder decoder => (
class => 'JSON',
output_to => 'logstash',
);
input file => (
class => 'FileTail',
output_to => 'decoder',
);
};
=head1 DESCRIPTION
This filter passes all incoming messages through with regexp captures.
Note it must be running after Message::Passing::Filter::ToLogstash because it don't process with json format but directly capture C<< $message->{'@message'} >> data lines into C<< %{ $message->{'@fields'} } >>
=head1 ATTRIBUTES
=head2 regexfile
Path of your regexfile. Default is /etc/message-passing/regexfile.
=head2 format
Name of a defined format in your regexfile.
=head2 capture
ArrayRef of regex names which you want to capture and has been defined in your regexfile. note delete the prefix C<%>.
=head2 fromto
HashRef of fields which you want capture from and to. Default as C<< { '@message' => '@fields' } >>.
If you set C<< undef >> to one key, such field will exists directly in C<< %$message >>.
=head1 SEE ALSO
Idea steal from <http://logstash.net> Grok filter
Config Format see L<Config::Tiny>
=head1 AUTHOR
chenryn, E<lt>rao.chenlin@gmail.com<gt>
=head1 CONTRIBUTOR
Alexander Hartmaier
=head1 COPYRIGHT AND LICENSE
Copyright (C) 2012 by chenryn
This library is free software; you can redistribute it and/or modify
it under the same terms as Perl itself, either Perl version 5.14.2 or,
at your option, any later version of Perl 5 you may have available.
=cut
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