added synopsis to Engine subclassed and documented a couple of methods to make podcov...
[catagits/Catalyst-Runtime.git] / lib / Catalyst / Engine / Apache.pm
1 package Catalyst::Engine::Apache;
2
3 use strict;
4 use mod_perl;
5 use constant MP2 => $mod_perl::VERSION >= 1.99;
6 use base 'Catalyst::Engine';
7 use URI;
8
9 # mod_perl
10 if (MP2) {
11     require Apache2;
12     require Apache::Connection;
13     require Apache::RequestIO;
14     require Apache::RequestRec;
15     require Apache::SubRequest;
16     require Apache::RequestUtil;
17     require APR::URI;
18     require Apache::URI;
19 }
20 else { require Apache }
21
22 # libapreq
23 require Apache::Request;
24 require Apache::Cookie;
25 require Apache::Upload if MP2;
26
27 __PACKAGE__->mk_accessors(qw/apache_request original_request/);
28
29 =head1 NAME
30
31 Catalyst::Engine::Apache - Catalyst Apache Engine
32
33 =head1 SYNOPSIS
34
35 See L<Catalyst>.
36
37 =head1 DESCRIPTION
38
39 This is the Catalyst engine specialized for Apache (i.e. for mod_perl).
40
41 =head1 METHODS
42
43 =over 4
44
45 =item $c->apache_request
46
47 Returns an C<Apache::Request> object.
48
49 =item $c->original_request
50
51 Returns the original Apache request object.
52
53 =back
54
55 =head1 OVERLOADED METHODS
56
57 This class overloads some methods from C<Catalyst::Engine>.
58
59 =over 4
60
61 =item $c->finalize_headers
62
63 =cut
64
65 sub finalize_headers {
66     my $c = shift;
67     for my $name ( $c->response->headers->header_field_names ) {
68         next if $name =~ /Content-Type/i;
69         $c->original_request->headers_out->set(
70             $name => $c->response->headers->header($name) );
71     }
72     while ( my ( $name, $cookie ) = each %{ $c->response->cookies } ) {
73         my %cookie = ( -name => $name, -value => $cookie->{value} );
74         $cookie->{-expires} = $cookie->{expires} if $cookie->{expires};
75         $cookie->{-domain}  = $cookie->{domain}  if $cookie->{domain};
76         $cookie->{-path}    = $cookie->{path}    if $cookie->{path};
77         $cookie->{-secure}  = $cookie->{secure}  if $cookie->{secure};
78         my $cookie = Apache::Cookie->new( $c->original_request, %cookie );
79         MP2
80           ? $c->apache_request->err_headers_out->add(
81             'Set-Cookie' => $cookie->as_string )
82           : $cookie->bake;
83     }
84     $c->original_request->status( $c->response->status );
85     $c->original_request->content_type( $c->response->headers->content_type
86           || 'text/plain' );
87     MP2 || $c->apache_request->send_http_header;
88     return 0;
89 }
90
91 =item $c->finalize_output
92
93 =cut
94
95 sub finalize_output {
96     my $c = shift;
97     $c->original_request->print( $c->response->{output} );
98 }
99
100 =item $c->prepare_connection
101
102 =cut
103
104 sub prepare_connection {
105     my $c = shift;
106     $c->req->hostname( $c->apache_request->connection->remote_host );
107     $c->req->address( $c->apache_request->connection->remote_ip );
108 }
109
110 =item $c->prepare_cookies
111
112 =cut
113
114 sub prepare_cookies {
115     my $c = shift;
116     MP2
117       ? $c->req->cookies( { Apache::Cookie->fetch } )
118       : $c->req->cookies(
119         { Apache::Cookie->new( $c->apache_request )->fetch } );
120 }
121
122 =item $c->prepare_headers
123
124 =cut
125
126 sub prepare_headers {
127     my $c = shift;
128     $c->req->method( $c->apache_request->method );
129     $c->req->headers->header( %{ $c->apache_request->headers_in } );
130 }
131
132 =item $c->prepare_parameters
133
134 =cut
135
136 sub prepare_parameters {
137     my $c = shift;
138     my %args;
139     foreach my $key ( $c->apache_request->param ) {
140         my @values = $c->apache_request->param($key);
141         $args{$key} = @values == 1 ? $values[0] : \@values;
142     }
143     $c->req->parameters( \%args );
144 }
145
146 =item $c->prepare_path
147
148 =cut
149
150 sub prepare_path {
151     my $c = shift;
152     $c->req->path( $c->apache_request->uri );
153     my $loc = $c->apache_request->location;
154     no warnings 'uninitialized';
155     $c->req->{path} =~ s/^($loc)?\///;
156     my $base = URI->new;
157     $base->scheme( $ENV{HTTPS} ? 'https' : 'http' );
158     $base->host( $c->apache_request->hostname );
159     $base->port( $c->apache_request->get_server_port );
160     my $path = $c->apache_request->location;
161     $base->path( $path =~ /\/$/ ? $path : "$path/" );
162     $c->req->base( $base->as_string );
163 }
164
165 =item $c->prepare_request($r)
166
167 =cut
168
169 sub prepare_request {
170     my ( $c, $r ) = @_;
171     $c->apache_request( Apache::Request->new($r) );
172     $c->original_request($r);
173 }
174
175 =item $c->prepare_uploads
176
177 =cut
178
179 sub prepare_uploads {
180     my $c = shift;
181     for my $upload ( $c->apache_request->upload ) {
182         $upload = $c->apache_request->upload($upload) if MP2;
183         $c->req->uploads->{ $upload->filename } = {
184             fh   => $upload->fh,
185             size => $upload->size,
186             type => $upload->type
187         };
188     }
189 }
190
191 =item $c->run
192
193 =cut
194
195 sub run { }
196
197 =back
198
199 =head1 SEE ALSO
200
201 L<Catalyst>.
202
203 =head1 AUTHOR
204
205 Sebastian Riedel, C<sri@cpan.org>
206
207 =head1 COPYRIGHT
208
209 This program is free software, you can redistribute it and/or modify it under
210 the same terms as Perl itself.
211
212 =cut
213
214 1;