File Coverage

blib/lib/Dancer2/Plugin/Feed.pm

Criterion	Covered	Total	%
statement	6	14	42.8
branch	0	6	0.0
condition			n/a
subroutine	2	3	66.6
pod			n/a
total	8	23	34.7

#
# This file is part of Dancer2-Plugin-Feed
#
# This software is copyright (c) 2016 by Natal Ngétal.
#
# This is free software; you can redistribute it and/or modify it under
# the same terms as the Perl 5 programming language system itself.
#
package Dancer2::Plugin::Feed;
$Dancer2::Plugin::Feed::VERSION = '1.160190';
use Dancer2::Plugin;
use XML::Feed;

#ABSTRACT: Easy to generate feed rss or atom for Dancer2 applications.

my $ct = {
    atom => 'application/atom+xml',
    rss  => 'application/rss+xml',
};

my @feed_properties =
  qw/format title base link tagline description author id language copyright self_link modified/;

my @entries_properties =
  qw/title base link content summary category tags author id issued modified enclosure/;

register create_feed => sub {
    my ($dsl, %params) = @_;

    my $format = _validate_format(\%params);

    if (lc $format eq 'atom') {
        _create_atom_feed($dsl, \%params);
    }
    elsif(lc $format eq 'rss') {
        _create_rss_feed($dsl, \%params);
    }
    else {
        die "Unknown format $format, use rss or atom\n";
    }
};

register create_atom_feed => sub {
    my ($dsl, %params) = plugin_args(@_);

    _create_atom_feed($dsl, \%params);
};

register create_rss_feed => sub {
    my ($dsl, %params) = plugin_args(@_);

    _create_rss_feed($dsl, \%params);
};

sub _validate_format {
    my( $params, $dsl ) = @_;
    my $format = delete $params->{format};

    if (!$format) {
        my $settings = plugin_setting;
        $format      = $settings->{format}
            or die "Feed format is missing\n";
    }

    if (! exists $ct->{$format}) {
        die "Unknown format $format, use rss or atom\n";
    }

    return $format;
}

sub _create_feed {
    my ($format, $params) = @_;

    my $entries = delete $params->{entries};

    my $feed     = XML::Feed->new($format);
    my $settings = plugin_setting;

    foreach (@feed_properites) {
        my $val = $params->{$_} || $settings->{$_};
        $feed->$_($val) if ($val);
    }

    foreach my $entry (@$entries) {
        my $e = XML::Feed::Entry->new($format);

        foreach (@entries_properties) {
            my $val = $entry->{$_};
            $e->$_($val) if $val
        }

        $feed->add_entry($e);
    }

    return $feed->as_xml;
}

sub _create_atom_feed {
    my ($dsl, $params) = @_;

    $dsl->content_type($ct->{atom});
    _create_feed('Atom', $params);
}

sub _create_rss_feed {
    my ($dsl, $params) = @_;

    $dsl->content_type($ct->{rss});
    _create_feed('RSS', $params);
}

register_plugin for_versions => [2];

1;

__END__