/usr/share/perl5/Plack/Middleware/SimpleLogger.pm is in libplack-perl 1.0033-1.
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 | package Plack::Middleware::SimpleLogger;
use strict;
use parent qw(Plack::Middleware);
use Config ();
use Plack::Util::Accessor qw(level);
use POSIX ();
use Scalar::Util ();
# Should this be in Plack::Util?
my $i = 0;
my %level_numbers = map { $_ => $i++ } qw(debug info warn error fatal);
sub call {
my($self, $env) = @_;
my $min = $level_numbers{ $self->level || "debug" };
my $env_ref = $env;
Scalar::Util::weaken($env_ref);
$env->{'psgix.logger'} = sub {
my $args = shift;
if ($level_numbers{$args->{level}} >= $min) {
$env_ref->{'psgi.errors'}->print($self->format_message($args->{level}, $args->{message}));
}
};
$self->app->($env);
}
sub format_time {
my $old_locale;
if ( $Config::config{d_setlocale} ) {
$old_locale = POSIX::setlocale(&POSIX::LC_ALL);
POSIX::setlocale(&POSIX::LC_ALL, 'C');
}
my $out = POSIX::strftime(@_);
if ( $Config::config{d_setlocale} ) {
POSIX::setlocale(&POSIX::LC_ALL, $old_locale);
};
return $out;
}
sub format_message {
my($self, $level, $message) = @_;
my $time = format_time("%Y-%m-%dT%H:%M:%S", localtime);
sprintf "%s [%s #%d] %s: %s\n", uc substr($level, 0, 1), $time, $$, uc $level, $message;
}
1;
__END__
=head1 NAME
Plack::Middleware::SimpleLogger - Simple logger that prints to psgi.errors
=head1 SYNOPSIS
enable "SimpleLogger", level => "warn";
=head1 DESCRIPTION
SimpleLogger is a middleware component that formats the log message
with information such as the time and PID and prints them to
I<psgi.errors> stream, which is mostly STDERR or server log output.
=head1 SEE ALSO
L<Plack::Middleware::LogErrors>, essentially the opposite of this module
=head1 AUTHOR
Tatsuhiko Miyagawa
=cut
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