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# =========================================================================
# THIS FILE IS AUTOMATICALLY GENERATED BY MINILLA.
# DO NOT EDIT DIRECTLY.
# =========================================================================
use 5.008_001;
use strict;
use Module::Build::Tiny 0.035;
Build_PL();

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Revision history for Perl extension Log-Dispatch-Gelf
1.3.1 2018-02-01T12:31:14Z
- add Params::Validate to cpanfile
1.3.0 2016-03-01T13:59:38Z
- use Log::GELF::Util (ADAMC)
1.2.0 2016-02-18T10:13:10Z
- custom additional fields in log method (ADAMC)
1.1.0 2016-02-15T13:51:56Z
- compression (ADAMC)
- UDP chunking (ADAMC)
1.0.0 2016-01-21T11:28:23Z
- support for direct logging through Graylog's UDP or TCP socket
0.1.0 2015-05-04T12:27:24Z
- original version

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This software is copyright (c) 2015 by Miroslav Tynovsky <tynovsky@avast.com>.
This is free software; you can redistribute it and/or modify it under
the same terms as the Perl 5 programming language system itself.
Terms of the Perl programming language system itself
a) the GNU General Public License as published by the Free
Software Foundation; either version 1, or (at your option) any
later version, or
b) the "Artistic License"
--- The GNU General Public License, Version 1, February 1989 ---
This software is Copyright (c) 2015 by Miroslav Tynovsky <tynovsky@avast.com>.
This is free software, licensed under:
The GNU General Public License, Version 1, February 1989
GNU GENERAL PUBLIC LICENSE
Version 1, February 1989
Copyright (C) 1989 Free Software Foundation, Inc.
51 Franklin St, Suite 500, Boston, MA 02110-1335 USA
Everyone is permitted to copy and distribute verbatim copies
of this license document, but changing it is not allowed.
Preamble
The license agreements of most software companies try to keep users
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Appendix: How to Apply These Terms to Your New Programs
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That's all there is to it!
--- The Artistic License 1.0 ---
This software is Copyright (c) 2015 by Miroslav Tynovsky <tynovsky@avast.com>.
This is free software, licensed under:
The Artistic License 1.0
The Artistic License
Preamble
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The End

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Build.PL
Changes
LICENSE
META.json
README.md
cpanfile
lib/Log/Dispatch/Gelf.pm
minil.toml
t/00_compile.t
t/01_log_format.t
t/02_socket.t
t/03_chunked.t
META.yml
MANIFEST

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{
"abstract" : "Log::Dispatch plugin for Graylog's GELF format.",
"author" : [
"Miroslav Tynovsky <tynovsky@avast.com>"
],
"dynamic_config" : 0,
"generated_by" : "Minilla/v3.0.4",
"license" : [
"perl_5"
],
"meta-spec" : {
"url" : "http://search.cpan.org/perldoc?CPAN::Meta::Spec",
"version" : "2"
},
"name" : "Log-Dispatch-Gelf",
"no_index" : {
"directory" : [
"t",
"xt",
"inc",
"share",
"eg",
"examples",
"author",
"builder"
]
},
"prereqs" : {
"configure" : {
"requires" : {
"Module::Build::Tiny" : "0.035"
}
},
"develop" : {
"requires" : {
"Test::CPAN::Meta" : "0",
"Test::MinimumVersion::Fast" : "0.04",
"Test::PAUSE::Permissions" : "0.04",
"Test::Pod" : "1.41",
"Test::Spellunker" : "v0.2.7"
}
},
"runtime" : {
"recommends" : {
"JSON::XS" : "2.0"
},
"requires" : {
"Log::Dispatch" : "0",
"Log::GELF::Util" : "0.90",
"Params::Validate" : "0",
"perl" : "5.010"
}
},
"test" : {
"requires" : {
"JSON" : "0",
"Mock::Quick" : "1.107",
"Test::Exception" : "0.31",
"Test::More" : "0.98"
}
}
},
"provides" : {
"Log::Dispatch::Gelf" : {
"file" : "lib/Log/Dispatch/Gelf.pm",
"version" : "v1.3.1"
}
},
"release_status" : "stable",
"resources" : {
"bugtracker" : {
"web" : "https://github.com/avast/log-dispatch-gelf/issues"
},
"homepage" : "https://github.com/avast/log-dispatch-gelf",
"repository" : {
"url" : "git://github.com/avast/log-dispatch-gelf.git",
"web" : "https://github.com/avast/log-dispatch-gelf"
}
},
"version" : "1.3.1",
"x_contributors" : [
"Jan Seidl <seidl@avast.com>",
"Adam Clarke <adam.clarke@strategicdata.com.au>",
"tynovsky <tynovsky@seznam.cz>",
"Mohelníková Lucie <mohelnikova@avast.com>"
],
"x_serialization_backend" : "JSON::PP version 2.94"
}

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---
abstract: "Log::Dispatch plugin for Graylog's GELF format."
author:
- 'Miroslav Tynovsky <tynovsky@avast.com>'
build_requires:
JSON: '0'
Mock::Quick: '1.107'
Test::Exception: '0.31'
Test::More: '0.98'
configure_requires:
Module::Build::Tiny: '0.035'
dynamic_config: 0
generated_by: 'Minilla/v3.0.4, CPAN::Meta::Converter version 2.150010'
license: perl
meta-spec:
url: http://module-build.sourceforge.net/META-spec-v1.4.html
version: '1.4'
name: Log-Dispatch-Gelf
no_index:
directory:
- t
- xt
- inc
- share
- eg
- examples
- author
- builder
provides:
Log::Dispatch::Gelf:
file: lib/Log/Dispatch/Gelf.pm
version: v1.3.1
recommends:
JSON::XS: '2.0'
requires:
Log::Dispatch: '0'
Log::GELF::Util: '0.90'
Params::Validate: '0'
perl: '5.010'
resources:
bugtracker: https://github.com/avast/log-dispatch-gelf/issues
homepage: https://github.com/avast/log-dispatch-gelf
repository: git://github.com/avast/log-dispatch-gelf.git
version: 1.3.1
x_contributors:
- 'Jan Seidl <seidl@avast.com>'
- 'Adam Clarke <adam.clarke@strategicdata.com.au>'
- 'tynovsky <tynovsky@seznam.cz>'
- 'Mohelníková Lucie <mohelnikova@avast.com>'
x_serialization_backend: 'CPAN::Meta::YAML version 0.018'

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[![Build Status](https://travis-ci.org/avast/log-dispatch-gelf.svg?branch=master)](https://travis-ci.org/avast/log-dispatch-gelf)
# NAME
Log::Dispatch::Gelf - Log::Dispatch plugin for Graylog's GELF format.
# SYNOPSIS
use Log::Dispatch;
my $sender = ... # e.g. RabbitMQ queue.
my $log = Log::Dispatch->new(
outputs => [
#some custom sender
[
'Gelf',
min_level => 'debug',
additional_fields => { facility => __FILE__ },
send_sub => sub { $sender->send($_[0]) },
],
#or send to graylog via TCP/UDP socket
[
'Gelf',
min_level => 'debug',
additional_fields => { facility => __FILE__ },
socket => {
host => 'graylog.server',
port => 21234,
protocol => 'tcp',
}
]
],
);
$log->info('It works');
$log->log(
level => 'info',
message => "It works\nMore details.",
additional_fields => { test => 1 }
);
# DESCRIPTION
Log::Dispatch::Gelf is a Log::Dispatch plugin which formats the log message
according to Graylog's GELF Format version 1.1. It supports sending via a
socket (TCP or UDP) or a user provided sender.
# CONSTRUCTOR
The constructor takes the following parameters in addition to the standard
parameters documented in [Log::Dispatch::Output](https://metacpan.org/pod/Log::Dispatch::Output):
- additional\_fields
optional hashref of additional fields of the gelf message (no need to prefix
them with \_, the prefixing is done automatically).
- chunked
optional scalar. An integer specifying the chunk size or the special
string values 'lan' or 'wan' corresponding to 8154 or 1420 respectively.
A zero chunk size means no chunking will be applied.
Chunking is only applicable to UDP connections.
- compress
optional scalar. If a true value the message will be gzipped with
IO::Compress::Gzip.
- send\_sub
mandatory sub for sending the message to graylog. It is triggered after the
gelf message is generated.
- socket
optional hashref create tcp or udp (default behavior) socket and set
`send_sub` to sending via socket
# METHODS
## $log->log( level => $, message => $, additional\_fields => \\% )
In addition to the corresponding method in [Log::Dispatch::Output](https://metacpan.org/pod/Log::Dispatch::Output) this
subclassed method takes an optional hashref of additional\_fields for the
gelf message. As in the corresponding parameter on the constructor there is
no need to prefix them with an \_. If the same key appears in both the
constructor's and method's additional\_fields then the method's value will
take precedence overriding the constructor's value for the current call.
The subclassed log method is still called with all parameters passed on.
# LICENSE
Copyright (C) Avast Software.
This library is free software; you can redistribute it and/or modify
it under the same terms as Perl itself.
# AUTHOR
Miroslav Tynovsky <tynovsky@avast.com>

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requires 'perl', '5.010';
requires 'Log::Dispatch';
requires 'Log::GELF::Util', '>= 0.90';
requires 'Params::Validate';
recommends 'JSON::XS', '2.0';
on 'test' => sub {
requires 'Test::More', '0.98';
requires 'Mock::Quick', '1.107';
requires 'Test::Exception', '0.31';
requires 'JSON';
};

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package Log::Dispatch::Gelf;
use 5.010;
use strict;
use warnings;
our $VERSION = '1.3.1';
use base qw(Log::Dispatch::Output);
use Params::Validate qw(validate SCALAR HASHREF CODEREF BOOLEAN);
use Log::GELF::Util qw(
parse_size
compress
enchunk
encode
);
use Sys::Hostname;
sub new {
my $proto = shift;
my $class = ref $proto || $proto;
my $self = bless {}, $class;
$self->_basic_init(@_);
$self->_init(@_);
return $self;
}
sub _init {
my $self = shift;
Params::Validate::validation_options(allow_extra => 1);
my %p = validate(
@_,
{
send_sub => { type => CODEREF, optional => 1 },
additional_fields => { type => HASHREF, optional => 1 },
host => { type => SCALAR, optional => 1 },
compress => { type => BOOLEAN, optional => 1 },
chunked => { type => SCALAR, default => 0 },
socket => {
type => HASHREF,
optional => 1,
callbacks => {
protocol_is_tcp_or_udp_or_default => sub {
my ($socket) = @_;
$socket->{protocol} //= 'udp';
die 'socket protocol must be tcp or udp' unless $socket->{protocol} =~ /^(?:tcp|udp)$/;
},
host_must_be_set => sub {
my ($socket) = @_;
die 'socket host must be set' unless exists $socket->{host} && length $socket->{host} > 0;
},
port_must_be_number_or_default => sub {
my ($socket) = @_;
$socket->{port} //= 12201;
die 'socket port must be integer' unless $socket->{port} =~ /^\d+$/;
},
}
}
}
);
$p{chunked} = parse_size($p{chunked});
if (!defined $p{socket} && !defined $p{send_sub}) {
die 'Must be set socket or send_sub';
}
if ( defined $p{socket}
&& defined $p{chunked}
&& $p{socket}{protocol} ne 'udp'
) {
die 'chunked only applicable to udp';
}
$self->{host} = $p{host} // hostname();
$self->{additional_fields} = $p{additional_fields} // {};
$self->{send_sub} = $p{send_sub};
$self->{gelf_version} = '1.1';
$self->{chunked} = $p{chunked};
if ($p{socket}) {
my $socket = $self->_create_socket($p{socket});
$self->{send_sub} = sub {
my ($msg) = @_;
$msg = compress($msg) if $p{compress};
$socket->send($_) foreach enchunk($msg, $self->{chunked});
};
}
return;
}
sub _create_socket {
my ($self, $socket_opts) = @_;
require IO::Socket::INET;
my $socket = IO::Socket::INET->new(
PeerAddr => $socket_opts->{host},
PeerPort => $socket_opts->{port},
Proto => $socket_opts->{protocol},
) or die "Cannot create socket: $!";
return $socket;
}
sub log_message {
my ($self, %p) = @_;
(my $short_message = $p{message}) =~ s/\n.*//s;
my %additional_fields;
while (my ($key, $value) = each %{ $self->{additional_fields} }) {
$additional_fields{"_$key"} = $value;
}
while (my ($key, $value) = each %{ $p{additional_fields} }) {
$additional_fields{"_$key"} = $value;
}
my $log_unit = {
version => $self->{gelf_version},
host => $self->{host},
short_message => $short_message,
level => $p{level},
full_message => $p{message},
%additional_fields,
};
$self->{send_sub}->(encode($log_unit));
return;
}
sub log {
my $self = shift;
my %p = validate(
@_, {
additional_fields => {
type => HASHREF,
optional => 1,
},
}
);
$self->SUPER::log(@_);
}
1;
__END__
=encoding utf-8
=head1 NAME
Log::Dispatch::Gelf - Log::Dispatch plugin for Graylog's GELF format.
=head1 SYNOPSIS
use Log::Dispatch;
my $sender = ... # e.g. RabbitMQ queue.
my $log = Log::Dispatch->new(
outputs => [
#some custom sender
[
'Gelf',
min_level => 'debug',
additional_fields => { facility => __FILE__ },
send_sub => sub { $sender->send($_[0]) },
],
#or send to graylog via TCP/UDP socket
[
'Gelf',
min_level => 'debug',
additional_fields => { facility => __FILE__ },
socket => {
host => 'graylog.server',
port => 21234,
protocol => 'tcp',
}
]
],
);
$log->info('It works');
$log->log(
level => 'info',
message => "It works\nMore details.",
additional_fields => { test => 1 }
);
=head1 DESCRIPTION
Log::Dispatch::Gelf is a Log::Dispatch plugin which formats the log message
according to Graylog's GELF Format version 1.1. It supports sending via a
socket (TCP or UDP) or a user provided sender.
=head1 CONSTRUCTOR
The constructor takes the following parameters in addition to the standard
parameters documented in L<Log::Dispatch::Output>:
=over
=item additional_fields
optional hashref of additional fields of the gelf message (no need to prefix
them with _, the prefixing is done automatically).
=item chunked
optional scalar. An integer specifying the chunk size or the special
string values 'lan' or 'wan' corresponding to 8154 or 1420 respectively.
A zero chunk size means no chunking will be applied.
Chunking is only applicable to UDP connections.
=item compress
optional scalar. If a true value the message will be gzipped with
IO::Compress::Gzip.
=item send_sub
mandatory sub for sending the message to graylog. It is triggered after the
gelf message is generated.
=item socket
optional hashref create tcp or udp (default behavior) socket and set
C<send_sub> to sending via socket
=back
=head1 METHODS
=head2 $log->log( level => $, message => $, additional_fields => \% )
In addition to the corresponding method in L<Log::Dispatch::Output> this
subclassed method takes an optional hashref of additional_fields for the
gelf message. As in the corresponding parameter on the constructor there is
no need to prefix them with an _. If the same key appears in both the
constructor's and method's additional_fields then the method's value will
take precedence overriding the constructor's value for the current call.
The subclassed log method is still called with all parameters passed on.
=head1 LICENSE
Copyright (C) Avast Software.
This library is free software; you can redistribute it and/or modify
it under the same terms as Perl itself.
=head1 AUTHOR
Miroslav Tynovsky E<lt>tynovsky@avast.comE<gt>
=cut

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name = "Log-Dispatch-Gelf"
badges = ["travis"]
module_maker="ModuleBuildTiny"

9
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use strict;
use Test::More 0.98;
use_ok $_ for qw(
Log::Dispatch::Gelf
);
done_testing;

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use strict;
use Test::More;
use Test::Exception;
use Log::Dispatch;
use JSON;
my $LAST_LOG_MSG;
my $log = Log::Dispatch->new(
outputs => [ [
'Gelf',
min_level => 'debug',
additional_fields => { facility => __FILE__ },
send_sub => sub { $LAST_LOG_MSG = $_[0] },
] ],
);
$log->info("It works\nMore details.");
note "formatted message: $LAST_LOG_MSG";
my $msg = decode_json($LAST_LOG_MSG);
is($msg->{level}, 6, 'correct level info');
is($msg->{short_message}, 'It works', 'short_message correct');
is($msg->{full_message}, "It works\nMore details.", 'full_message correct');
is($msg->{_facility}, __FILE__, 'facility correct');
ok($msg->{host}, 'host is there');
ok($msg->{timestamp}, 'timestamp is there');
ok($msg->{version}, 'version is there');
dies_ok {
$log->log(
level => 'info',
message => "It works\nMore details.",
additional_fields => 'not a hashref'
);
}
'additional_fields wrong type';
$log->log(
level => 'info',
message => "It works\nMore details.",
additional_fields => { additional => 1 }
);
note "formatted message: $LAST_LOG_MSG";
$msg = decode_json($LAST_LOG_MSG);
is($msg->{level}, 6, 'correct level info');
is($msg->{short_message}, 'It works', 'short_message correct');
is($msg->{full_message}, "It works\nMore details.", 'full_message correct');
is($msg->{_facility}, __FILE__, 'facility correct');
is($msg->{_additional}, 1, 'additional log field correct');
ok($msg->{host}, 'host is there');
ok($msg->{timestamp}, 'timestamp is there');
ok($msg->{version}, 'version is there');
$log->log(
level => 'info',
message => "It works\nMore details.",
additional_fields => { facility => 'override' }
);
note "formatted message: $LAST_LOG_MSG";
$msg = decode_json($LAST_LOG_MSG);
is($msg->{_facility}, 'override', 'facility overridden correctly');
$log->log(
level => 'info',
message => "It works\nMore details.",
);
note "formatted message: $LAST_LOG_MSG";
$msg = decode_json($LAST_LOG_MSG);
is($msg->{_facility}, __FILE__, 'override is temporary');
done_testing(18);

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use strict;
use warnings;
use Test::More;
use Log::Dispatch;
use JSON;
use Test::Exception;
use Mock::Quick;
use IO::Uncompress::Gunzip qw(gunzip $GunzipError);
throws_ok {
Log::Dispatch->new(
outputs => [
[
'Gelf', min_level => 'debug',
]
],
);
}
qr/^Must be set socket or send_sub/, 'empty socket';
throws_ok {
Log::Dispatch->new(
outputs => [
[
'Gelf',
min_level => 'debug',
'socket' => {}
]
],
);
}
qr/socket host must be set/, 'undefined socket host';
throws_ok {
Log::Dispatch->new(
outputs => [
[
'Gelf',
min_level => 'debug',
'socket' => {
host => ''
}
]
],
);
}
qr/socket host must be set/, 'empty socket host';
throws_ok {
Log::Dispatch->new(
outputs => [
[
'Gelf',
min_level => 'debug',
'socket' => {
host => 'test',
port => 'x',
}
]
],
);
}
qr/socket port must be integer/, 'invalid socket port';
throws_ok {
Log::Dispatch->new(
outputs => [
[
'Gelf',
min_level => 'debug',
'socket' => {
host => 'test',
port => '111111',
protocol => 'invalid',
}
]
],
);
}
qr/socket protocol must be tcp or udp/, 'invalid protocol';
throws_ok {
Log::Dispatch->new(
outputs => [
[
'Gelf',
min_level => 'debug',
'socket' => {
host => 'test',
port => '111111',
protocol => 'xxx-udp',
}
]
],
);
}
qr/socket protocol must be tcp or udp/, 'invalid protocol 2';
my $LAST_LOG_MSG;
my $class_inet = qclass(
-implement => 'IO::Socket::INET',
new => sub {
my ($obj, %options) = @_;
is_deeply(\%options, { PeerAddr => 'test', PeerPort => 12201, Proto => 'udp' }, 'connect opts');
return bless {}, $obj;
},
send => sub {
my ($self, $msg) = @_;
$LAST_LOG_MSG = $msg;
}
);
my $log = Log::Dispatch->new(
outputs => [
[
'Gelf',
min_level => 'debug',
socket => {
host => 'test',
}
]
],
);
$log->info("It works\nMore details.");
note("formatted message: $LAST_LOG_MSG");
my $msg = decode_json($LAST_LOG_MSG);
is($msg->{level}, 6, 'correct level info');
is($msg->{short_message}, 'It works', 'short_message correct');
is($msg->{full_message}, "It works\nMore details.", 'full_message correct');
$log = Log::Dispatch->new(
outputs => [
[
'Gelf',
min_level => 'debug',
compress => 1,
socket => {
host => 'test',
}
]
],
);
$log->info("Compressed\nMore details.");
my $output;
gunzip \$LAST_LOG_MSG => \$output
or die "gunzip failed: $GunzipError\n";
note("formatted message: $output");
$msg = decode_json($output);
is($msg->{level}, 6, 'correct level info');
is($msg->{short_message}, 'Compressed', 'short_message correct');
is($msg->{full_message}, "Compressed\nMore details.", 'full_message correct');
done_testing(14);

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use strict;
use warnings;
use Test::More;
use Log::Dispatch;
use Log::GELF::Util qw(dechunk decode_chunk uncompress);
use JSON;
use Test::Exception;
use Mock::Quick;
use IO::Uncompress::Gunzip qw(gunzip $GunzipError);
my @ACCUMULATOR;
my $MESSAGE;
my $class_inet = qclass(
-implement => 'IO::Socket::INET',
new => sub {
my ($obj, %options) = @_;
@ACCUMULATOR = undef;
$MESSAGE = undef;
return bless {}, $obj;
},
send => sub {
my ($self, $encoded_chunk) = @_;
$MESSAGE = dechunk(
\@ACCUMULATOR,
decode_chunk($encoded_chunk)
);
$MESSAGE = uncompress($MESSAGE) if $MESSAGE;
}
);
throws_ok {
Log::Dispatch->new(
outputs => [
[
'Gelf',
min_level => 'debug',
chunked => 'WAN',
'socket' => {
host => 'test',
protocol => 'tcp',
}
]
],
);
}
qr/chunked only applicable to udp/, 'invalid protocol for chunking';
throws_ok {
Log::Dispatch->new(
outputs => [
[
'Gelf',
min_level => 'debug',
chunked => 'xxx',
'socket' => {
host => 'test',
protocol => 'udp',
}
]
],
);
}
qr/chunk size must be "lan", "wan", a positve integer, or 0 \(no chunking\)/, 'invalid chunked value';
throws_ok {
Log::Dispatch->new(
outputs => [
[
'Gelf',
min_level => 'debug',
chunked => '-1',
'socket' => {
host => 'test',
protocol => 'udp',
}
]
],
);
}
qr/chunk size must be "lan", "wan", a positve integer, or 0 \(no chunking\)/, 'invalid integer';
new_ok ( 'Log::Dispatch', [
outputs => [
[
'Gelf',
min_level => 'debug',
chunked => 'WAN',
socket => {
host => 'test',
}
]
]
]
);
new_ok ( 'Log::Dispatch', [
outputs => [
[
'Gelf',
min_level => 'debug',
chunked => 'lan',
socket => {
host => 'test',
}
]
]
]
);
my $log = Log::Dispatch->new(
outputs => [
[
'Gelf',
min_level => 'debug',
chunked => 4,
socket => {
host => 'test',
}
]
],
);
$log->info("Uncompressed - chunked\nMore details.");
note("formatted message: $MESSAGE");
my $msg = decode_json($MESSAGE);
is($msg->{level}, 6, 'correct level info');
is($msg->{short_message}, 'Uncompressed - chunked', 'short_message correct');
is($msg->{full_message}, "Uncompressed - chunked\nMore details.", 'full_message correct');
$log = Log::Dispatch->new(
outputs => [
[
'Gelf',
min_level => 'debug',
compress => 1,
chunked => 4,
socket => {
host => 'test',
}
]
],
);
$log->info("Compressed - chunked\nMore details.");
note("formatted message: $MESSAGE");
$msg = decode_json($MESSAGE);
is($msg->{level}, 6, 'correct level info');
is($msg->{short_message}, 'Compressed - chunked', 'short_message correct');
is($msg->{full_message}, "Compressed - chunked\nMore details.", 'full_message correct');
done_testing(11);