/usr/share/perl5/Plack/Middleware/XSendfile.pm is in libplack-perl 0.9985-1.
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 | package Plack::Middleware::XSendfile;
use strict;
use warnings;
use parent qw(Plack::Middleware);
use Plack::Util;
use Scalar::Util;
use Plack::Util::Accessor qw( variation );
sub call {
my $self = shift;
my $env = shift;
my $res = $self->app->($env);
$self->response_cb($res, sub {
my $res = shift;
my($status, $headers, $body) = @$res;
return unless defined $body;
if (Scalar::Util::blessed($body) && $body->can('path')) {
my $type = $self->_variation($env) || '';
my $h = Plack::Util::headers($headers);
if ($type && !$h->exists($type)) {
if ($type eq 'X-Accel-Redirect') {
my $path = $body->path;
my $url = $self->map_accel_path($env, $path);
$h->set($type => $url) if $url;
$body = [];
} elsif ($type eq 'X-Sendfile' or $type eq 'X-Lighttpd-Send-File') {
my $path = $body->path;
$h->set($type => $path) if defined $path;
$body = [];
} else {
$env->{'psgi.errors'}->print("Unknown x-sendfile variation: $type");
}
}
}
@$res = ( $status, $headers, $body );
});
}
sub map_accel_path {
my($self, $env, $path) = @_;
if (my $mapping = $env->{HTTP_X_ACCEL_MAPPING}) {
my($internal, $external) = split /=/, $mapping, 2;
$path =~ s!^\Q$internal\E!$external!i;
}
return $path;
}
sub _variation {
my($self, $env) = @_;
$self->variation || $env->{'plack.xsendfile.type'} || $env->{HTTP_X_SENDFILE_TYPE};
}
1;
__END__
=head1 NAME
Plack::Middleware::XSendfile - Sets X-Sendfile (or a like) header for frontends
=head1 SYNOPSIS
enable "Plack::Middleware::XSendfile";
=head1 DESCRIPTION
You should use L<IO::File::WithPath> or L<Plack::Util>'s
C<set_io_path> to add C<path> method to an IO object in the body.
See L<http://github.com/rack/rack-contrib/blob/master/lib/rack/contrib/sendfile.rb>
for the frontend configuration.
=head1 AUTHOR
Tatsuhiko Miyagawa
=cut
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