use HTTP::Headers::Util qw(split_header_words);
use namespace::autoclean;
-has [qw/ data accept_only /] => ( is => 'rw' );
-
-sub accepted_content_types {
- my $self = shift;
+our $VERSION = '0.90';
+$VERSION = eval $VERSION;
- return $self->{content_types} if $self->{content_types};
+has [qw/ data accept_only /] => ( is => 'rw' );
- my %types;
+has accepted_content_types => (
+ is => 'ro',
+ isa => 'ArrayRef',
+ lazy => 1,
+ builder => '_build_accepted_content_types',
+ init_arg => undef,
+);
+
+has preferred_content_type => (
+ is => 'ro',
+ isa => 'Str',
+ lazy => 1,
+ builder => '_build_preferred_content_type',
+ init_arg => undef,
+);
+
+has accepted_response_content_types => (
+ is => 'ro',
+ isa => 'ArrayRef',
+ lazy => 1,
+ builder => '_build_accepted_response_content_types',
+ init_arg => undef,
+);
+
+has preferred_response_content_type => (
+ is => 'ro',
+ isa => 'Str',
+ lazy => 1,
+ builder => '_build_preferred_response_content_type',
+ init_arg => undef,
+);
+
+sub _accepted_types_sort {
+ my ($self, %types) = @_;
+ [ sort { $types{$b} <=> $types{$a} } keys %types ];
+}
+sub _build_accepted_content_types {
+ my $self = shift;
+ my %types = $self->_accepted_response_content_types_inner;
# First, we use the content type in the HTTP Request. It wins all.
$types{ $self->content_type } = 3
if $self->content_type;
+ $self->_accepted_types_sort(%types);
+}
+
+sub _build_accepted_response_content_types {
+ my $self = shift;
+ my %types = $self->_accepted_response_content_types_inner;
+ $self->_accepted_types_sort(%types);
+}
+
+sub _accepted_response_content_types_inner {
+ my $self = shift;
+
+ my %types;
if ($self->method eq "GET" && $self->param('content-type')) {
$types{ $self->param('content-type') } = 2;
}
}
- return $self->{content_types} =
- [ sort { $types{$b} <=> $types{$a} } keys %types ];
+ %types;
}
-sub preferred_content_type { $_[0]->accepted_content_types->[0] }
+sub _build_preferred_content_type { $_[0]->accepted_content_types->[0] }
+
+sub _build_preferred_response_content_type { $_[0]->accepted_response_content_types->[0] }
sub accepts {
my $self = shift;
}
1;
+__END__
+
+=head1 NAME
+
+Catalyst::TraitFor::Request::REST - A role to apply to Catalyst::Request giving it REST methods and attributes.
+
+=head1 SYNOPSIS
+
+ if ( $c->request->accepts('application/json') ) {
+ ...
+ }
+
+ my $types = $c->request->accepted_content_types();
+
+=head1 DESCRIPTION
+
+This is a L<Moose::Role> applied to L<Catalyst::Request> that adds a few
+methods to the request object to facilitate writing REST-y code.
+Currently, these methods are all related to the content types accepted by
+the client.
+
+=head1 METHODS
+
+=over
+
+=item data
+
+If the request went through the Deserializer action, this method will
+return the deserialized data structure.
+
+=item accepted_content_types
+
+Returns an array reference of content types accepted by the
+client.
+
+The list of types is created by looking at the following sources:
+
+=over 8
+
+=item * Content-type header
+
+If this exists, this will always be the first type in the list.
+
+=item * content-type parameter
+
+If the request is a GET request and there is a "content-type"
+parameter in the query string, this will come before any types in the
+Accept header.
+
+=item * Accept header
+
+This will be parsed and the types found will be ordered by the
+relative quality specified for each type.
+
+=back
+
+If a type appears in more than one of these places, it is ordered based on
+where it is first found.
+
+=item preferred_content_type
+
+This returns the first content type found. It is shorthand for:
+
+ $request->accepted_content_types->[0]
+
+=item accepts($type)
+
+Given a content type, this returns true if the type is accepted.
+
+Note that this does not do any wildcard expansion of types.
+
+=back
+
+=head1 AUTHORS
+
+See L<Catalyst::Action::REST> for authors.
+
+=head1 LICENSE
+
+You may distribute this code under the same terms as Perl itself.
+
+=cut
+