/usr/share/perl5/Plack/Middleware/FixMissingBodyInRedirect.pm is in libplack-middleware-fixmissingbodyinredirect-perl 0.11-1.
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 | package Plack::Middleware::FixMissingBodyInRedirect;
use strict;
use warnings;
use parent qw( Plack::Middleware );
use Plack::Util;
use HTML::Entities;
use Scalar::Util qw(blessed);
# ABSTRACT: Plack::Middleware which sets body for redirect response, if it's not already set
our $VERSION = '0.10';
sub call {
my $self = shift;
return $self->response_cb($self->app->(@_), sub {
my $res = shift;
return unless $res->[0] >= 300 && $res->[0] < 400;
my $headers = Plack::Util::headers($res->[1]); # first index contains HTTP header
if( $headers->exists('Location') ) {
my $location = $headers->get("Location");
# checking if body (which is at index 2) is set or not
if (@$res == 3 && !_is_body_set($res->[2])) {
my $body = $self->_default_html_body($location);
$res->[2] = [$body];
my $content_length = Plack::Util::content_length([$body]);
$headers->set('Content-Length' => $content_length);
$headers->set('Content-Type' => 'text/html; charset=utf-8');
return;
}
elsif (@$res == 2 || blessed($res->[2])) {
if(! $headers->exists('Content-Type')) {
$headers->set('Content-Type' => 'text/html; charset=utf-8')
}
my $done;
return sub {
my $chunk = shift;
return $chunk if $done;
if (!defined $chunk) {
$done = 1;
return $self->_default_html_body($location);
}
elsif (length $chunk) {
$done = 1;
}
return $chunk;
};
}
}
});
}
sub _default_html_body {
my ($self_or_class, $location) = @_;
my $encoded_location = encode_entities($location);
return <<"EOF";
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<title>Moved</title>
</head>
<body>
<p>This item has moved <a href="$encoded_location">here</a>.</p>
</body>
</html>
EOF
}
sub _is_body_set {
my $body = shift;
if (ref $body eq 'ARRAY') {
return grep { defined && length } @$body;
}
elsif (Plack::Util::is_real_fh($body) && -f $body && -z _) {
return 0;
}
return 1;
}
1;
__END__
=pod
=encoding UTF-8
=head1 NAME
Plack::Middleware::FixMissingBodyInRedirect - Plack::Middleware which sets body for redirect response, if it's not already set
=head1 VERSION
version 0.11
=head1 SYNOPSIS
use strict;
use warnings;
use Plack::Builder;
my $app = sub { ... };
builder {
enable "FixMissingBodyInRedirect";
$app;
};
=head1 DESCRIPTION
This module sets body in redirect response, if it's not already set.
=head1 CONTRIBUTORS
John Napiorkowski <jjn1056@yahoo.com>
Graham Knop <haarg@haarg.org>
n0body, Mark Ellis <m@rkellis.com>
ether, Karen Etheridge <ether@cpan.org>
=head1 AUTHOR
Upasana <me@upasana.me>
=head1 COPYRIGHT AND LICENSE
This software is copyright (c) 2014 by Upasana.
This is free software; you can redistribute it and/or modify it under
the same terms as the Perl 5 programming language system itself.
=cut
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