package Catalyst::Response;
-use strict;
-use base 'Class::Accessor::Fast';
+use Moose;
+use HTTP::Headers;
+use Moose::Util::TypeConstraints;
+use namespace::autoclean;
-__PACKAGE__->mk_accessors(qw/cookies headers output redirect status/);
+with 'MooseX::Emulate::Class::Accessor::Fast';
+
+has _response_cb => (
+ is => 'ro',
+ isa => 'CodeRef',
+ writer => '_set_response_cb',
+ clearer => '_clear_response_cb',
+ predicate => '_has_response_cb',
+);
+
+subtype 'Catalyst::Engine::Types::Writer',
+ as duck_type([qw(write close)]);
+
+has _writer => (
+ is => 'ro',
+ isa => 'Catalyst::Engine::Types::Writer',
+ writer => '_set_writer',
+ clearer => '_clear_writer',
+ predicate => '_has_writer',
+);
+
+sub DEMOLISH { $_[0]->_writer->close if $_[0]->_has_writer }
+
+has cookies => (is => 'rw', default => sub { {} });
+has body => (is => 'rw', default => undef);
+sub has_body { defined($_[0]->body) }
+
+has location => (is => 'rw');
+has status => (is => 'rw', default => 200);
+has finalized_headers => (is => 'rw', default => 0);
+has headers => (
+ is => 'rw',
+ isa => 'HTTP::Headers',
+ handles => [qw(content_encoding content_length content_type header)],
+ default => sub { HTTP::Headers->new() },
+ required => 1,
+ lazy => 1,
+);
+has _context => (
+ is => 'rw',
+ weak_ref => 1,
+ clearer => '_clear_context',
+);
+
+sub output { shift->body(@_) }
+
+sub code { shift->status(@_) }
+
+sub write {
+ my ( $self, $buffer ) = @_;
+
+ # Finalize headers if someone manually writes output
+ $self->_context->finalize_headers;
+
+ $buffer = q[] unless defined $buffer;
+
+ my $len = length($buffer);
+ $self->_writer->write($buffer);
+
+ return $len;
+}
+
+sub finalize_headers {
+ my ($self) = @_;
+
+ # This is a less-than-pretty hack to avoid breaking the old
+ # Catalyst::Engine::PSGI. 5.9 Catalyst::Engine sets a response_cb and
+ # expects us to pass headers to it here, whereas Catalyst::Enngine::PSGI
+ # just pulls the headers out of $ctx->response in its run method and never
+ # sets response_cb. So take the lack of a response_cb as a sign that we
+ # don't need to set the headers.
+
+ return unless $self->_has_response_cb;
+
+ # If we already have a writer, we already did this, so don't do it again
+ return if $self->_has_writer;
+
+ my @headers;
+ $self->headers->scan(sub { push @headers, @_ });
+
+ my $writer = $self->_response_cb->([ $self->status, \@headers ]);
+ $self->_set_writer($writer);
+ $self->_clear_response_cb;
+
+ return;
+}
=head1 NAME
-Catalyst::Response - Catalyst Response Class
+Catalyst::Response - stores output responding to the current client request
=head1 SYNOPSIS
-See L<Catalyst::Application>.
+ $res = $c->response;
+ $res->body;
+ $res->code;
+ $res->content_encoding;
+ $res->content_length;
+ $res->content_type;
+ $res->cookies;
+ $res->header;
+ $res->headers;
+ $res->output;
+ $res->redirect;
+ $res->status;
+ $res->write;
=head1 DESCRIPTION
-The Catalyst Response.
+This is the Catalyst Response class, which provides methods for responding to
+the current client request. The appropriate L<Catalyst::Engine> for your environment
+will turn the Catalyst::Response into a HTTP Response and return it to the client.
+
+=head1 METHODS
+
+=head2 $res->body( $text | $fh | $iohandle_object )
+
+ $c->response->body('Catalyst rocks!');
+
+Sets or returns the output (text or binary data). If you are returning a large body,
+you might want to use a L<IO::Handle> type of object (Something that implements the read method
+in the same fashion), or a filehandle GLOB. Catalyst
+will write it piece by piece into the response.
+
+=head2 $res->has_body
+
+Predicate which returns true when a body has been set.
+
+=head2 $res->code
-=head2 METHODS
+Alias for $res->status.
-=head3 cookies
+=head2 $res->content_encoding
-Returns a hashref containing the cookies.
+Shortcut for $res->headers->content_encoding.
+
+=head2 $res->content_length
+
+Shortcut for $res->headers->content_length.
+
+=head2 $res->content_type
+
+Shortcut for $res->headers->content_type.
+
+This value is typically set by your view or plugin. For example,
+L<Catalyst::Plugin::Static::Simple> will guess the mime type based on the file
+it found, while L<Catalyst::View::TT> defaults to C<text/html>.
+
+=head2 $res->cookies
+
+Returns a reference to a hash containing cookies to be set. The keys of the
+hash are the cookies' names, and their corresponding values are hash
+references used to construct a L<CGI::Simple::Cookie> object.
$c->response->cookies->{foo} = { value => '123' };
-=head3 headers
+The keys of the hash reference on the right correspond to the L<CGI::Simple::Cookie>
+parameters of the same name, except they are used without a leading dash.
+Possible parameters are:
+
+=over
+
+=item value
-Returns a L<HTTP::Headers> object containing the headers.
+=item expires
+
+=item domain
+
+=item path
+
+=item secure
+
+=item httponly
+
+=back
+
+=head2 $res->header
+
+Shortcut for $res->headers->header.
+
+=head2 $res->headers
+
+Returns an L<HTTP::Headers> object, which can be used to set headers.
$c->response->headers->header( 'X-Catalyst' => $Catalyst::VERSION );
-=head3 output
+=head2 $res->output
+
+Alias for $res->body.
+
+=head2 $res->redirect( $url, $status )
+
+Causes the response to redirect to the specified URL. The default status is
+C<302>.
+
+ $c->response->redirect( 'http://slashdot.org' );
+ $c->response->redirect( 'http://slashdot.org', 307 );
+
+This is a convenience method that sets the Location header to the
+redirect destination, and then sets the response status. You will
+want to C< return > or C<< $c->detach() >> to interrupt the normal
+processing flow if you want the redirect to occur straight away.
+
+B<Note:> do not give a relative URL as $url, i.e: one that is not fully
+qualified (= C<http://...>, etc.) or that starts with a slash
+(= C</path/here>). While it may work, it is not guaranteed to do the right
+thing and is not a standard behaviour. You may opt to use uri_for() or
+uri_for_action() instead.
+
+=cut
+
+sub redirect {
+ my $self = shift;
-Contains the final output.
+ if (@_) {
+ my $location = shift;
+ my $status = shift || 302;
- $c->response->output('Catalyst rockz!');
+ $self->location($location);
+ $self->status($status);
+ }
-=head3 redirect
+ return $self->location;
+}
-Contains a location to redirect to.
+=head2 $res->location
- $c->response->redirect('http://slashdot.org');
+Sets or returns the HTTP 'Location'.
-=head3 status
+=head2 $res->status
-Contains the HTTP status.
+Sets or returns the HTTP status.
$c->response->status(404);
-=head1 AUTHOR
+$res->code is an alias for this, to match HTTP::Response->code.
-Sebastian Riedel, C<sri@cpan.org>
+=head2 $res->write( $data )
+
+Writes $data to the output stream.
+
+=head2 $res->print( @data )
+
+Prints @data to the output stream, separated by $,. This lets you pass
+the response object to functions that want to write to an L<IO::Handle>.
+
+=head2 $self->finalize_headers($c)
+
+Writes headers to response if not already written
+
+=head2 DEMOLISH
+
+Ensures that the response is flushed and closed at the end of the
+request.
+
+=head2 meta
+
+Provided by Moose
+
+=cut
+
+sub print {
+ my $self = shift;
+ my $data = shift;
+
+ defined $self->write($data) or return;
+
+ for (@_) {
+ defined $self->write($,) or return;
+ defined $self->write($_) or return;
+ }
+ defined $self->write($\) or return;
+
+ return 1;
+}
+
+=head1 AUTHORS
+
+Catalyst Contributors, see Catalyst.pm
=head1 COPYRIGHT
-This program is free software, you can redistribute it and/or modify it under
-the same terms as Perl itself.
+This library is free software. You can redistribute it and/or modify
+it under the same terms as Perl itself.
=cut
+__PACKAGE__->meta->make_immutable;
+
1;
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