1 package Catalyst::Controller::WrapCGI;
6 extends 'Catalyst::Controller';
8 use HTTP::Request::AsCGI ();
11 use Catalyst::Exception ();
14 use namespace::clean -except => 'meta';
18 Catalyst::Controller::WrapCGI - Run CGIs in Catalyst
26 our $VERSION = '0.0032';
30 package MyApp::Controller::Foo;
32 use parent qw/Catalyst::Controller::WrapCGI/;
35 sub hello : Path('cgi-bin/hello.cgi') {
38 $self->cgi_to_response($c, sub {
40 print $q->header, $q->start_html('Hello'),
41 $q->h1('Catalyst Rocks!'),
46 In your .conf, configure which environment variables to pass:
50 username_field username # used for REMOTE_USER env var
60 Allows you to run Perl code in a CGI environment derived from your L<Catalyst>
63 B<*WARNING*>: do not export L<CGI> functions into a Controller, it will break
64 with L<Catalyst> 5.8 onward.
66 If you just want to run CGIs from files, see L<Catalyst::Controller::CGIBin>.
70 C<< $your_controller->{CGI}{pass_env} >> should be an array of environment variables
71 or regular expressions to pass through to your CGIs. Entries surrounded by C</>
72 characters are considered regular expressions.
74 C<< $your_controller->{CGI}{kill_env} >> should be an array of environment
75 variables or regular expressions to remove from the environment before passing
76 it to your CGIs. Entries surrounded by C</> characters are considered regular
79 Default is to pass the whole of C<%ENV>, except for C<MOD_PERL> and
80 C<CONTENT_TYPE> (that is, the default C<kill_env> is C<[ qw(MOD_PERL
83 C<< $your_controller->{CGI}{username_field} >> should be the field for your user's name, which will be
84 read from C<< $c->user->obj >>. Defaults to 'username'.
86 See L</SYNOPSIS> for an example.
90 # Hack-around because Catalyst::Engine::HTTP goes and changes
91 # them to be the remote socket, and FCGI.pm does even dumber things.
93 open my $REAL_STDIN, "<&=".fileno(*STDIN);
94 open my $REAL_STDOUT, ">>&=".fileno(*STDOUT);
98 =head2 cgi_to_response
100 C<<$self->cgi_to_response($c, $coderef)>>
102 Does the magic of running $coderef in a CGI environment, and populating the
103 appropriate parts of your Catalyst context with the results.
109 sub cgi_to_response {
110 my ($self, $c, $script) = @_;
112 my $res = $self->wrap_cgi($c, $script);
114 # if the CGI doesn't set the response code but sets location they were
115 # probably trying to redirect so set 302 for them
117 my $location = $res->headers->header('Location');
119 if (defined $location && length $location && $res->code == 200) {
120 $c->res->status(302);
122 $c->res->status($res->code);
124 $c->res->body($res->content);
125 $c->res->headers($res->headers);
130 C<<$self->wrap_cgi($c, $coderef)>>
132 Runs $coderef in a CGI environment using L<HTTP::Request::AsCGI>, returns an
135 The CGI environment is set up based on $c.
137 The environment variables to pass on are taken from the configuration for your
138 Controller, see L</SYNOPSIS> for an example. If you don't supply a list of
139 environment variables to pass, the whole of %ENV is used.
141 Used by L</cgi_to_response>, which is probably what you want to use as well.
146 my ($self, $c, $call) = @_;
147 my $req = HTTP::Request->new(
148 map { $c->req->$_ } qw/method uri headers/
150 my $body = $c->req->body;
151 my $body_content = '';
153 $req->content_type($c->req->content_type); # set this now so we can override
155 if ($body) { # Slurp from body filehandle
156 local $/; $body_content = <$body>;
158 my $body_params = $c->req->body_parameters;
160 my $encoder = URI->new;
161 $encoder->query_form(%$body_params);
162 $body_content = $encoder->query;
163 $req->content_type('application/x-www-form-urlencoded');
167 my $filtered_env = $self->_filtered_env(\%ENV);
169 $req->content($body_content);
170 $req->content_length(length($body_content));
172 my $username_field = $self->{CGI}{username_field} || 'username';
174 my $username = (($c->can('user_exists') && $c->user_exists)
175 ? eval { $c->user->obj->$username_field }
178 my $path_info = '/'.join '/' => map uri_escape_utf8($_), @{ $c->req->args };
180 my $env = HTTP::Request::AsCGI->new(
182 ($username ? (REMOTE_USER => $username) : ()),
184 PATH_INFO => $path_info,
185 FILEPATH_INFO => '/'.$c->action.$path_info, # eww
186 SCRIPT_NAME => $c->uri_for($c->action)->path
190 local *STDIN = $REAL_STDIN; # restore the real ones so the filenos
191 local *STDOUT = $REAL_STDOUT; # are 0 and 1 for the env setup
193 my $old = select($REAL_STDOUT); # in case somebody just calls 'print'
204 Catalyst::Exception->throw(
205 message => "CGI invocation failed: $saved_error"
209 return $env->response;
213 my ($self, $env) = @_;
216 my $pass_env = $self->{CGI}{pass_env};
217 $pass_env = [] if not defined $pass_env;
218 $pass_env = [ $pass_env ] unless ref $pass_env;
220 my $kill_env = $self->{CGI}{kill_env};
221 $kill_env = [ 'MOD_PERL', 'CONTENT_TYPE' ] unless defined $kill_env;
222 $kill_env = [ $kill_env ] unless ref $kill_env;
228 push @ok, grep /$re/, keys %$env;
237 for my $k (@$kill_env) {
238 if ($k =~ m!^/(.*)/\z!) {
240 @ok = grep { ! /$re/ } @ok;
242 @ok = grep { $_ ne $k } @ok;
245 return { map {; $_ => $env->{$_} } @ok };
248 __PACKAGE__->meta->make_immutable;
250 =head1 ACKNOWLEDGEMENTS
252 Original development sponsored by L<http://www.altinity.com/>
256 L<Catalyst::Controller::CGIBin>, L<CatalystX::GlobalContext>,
257 L<Catalyst::Controller>, L<CGI>, L<Catalyst>
261 Originally written by:
263 Matt S. Trout, C<< <mst at shadowcat.co.uk> >>
267 Rafael Kitover C<< <rkitover at cpan.org> >>
269 Hans Dieter Pearcey C<< <hdp at cpan.org> >>
273 Please report any bugs or feature requests to C<bug-catalyst-controller-wrapcgi
274 at rt.cpan.org>, or through the web interface at
275 L<http://rt.cpan.org/NoAuth/ReportBug.html?Queue=Catalyst-Controller-WrapCGI>.
276 I will be notified, and then you'll automatically be notified of progress on
277 your bug as I make changes.
285 =item * RT: CPAN's request tracker
287 L<http://rt.cpan.org/NoAuth/Bugs.html?Dist=Catalyst-Controller-WrapCGI>
289 =item * AnnoCPAN: Annotated CPAN documentation
291 L<http://annocpan.org/dist/Catalyst-Controller-WrapCGI>
295 L<http://cpanratings.perl.org/d/Catalyst-Controller-WrapCGI>
299 L<http://search.cpan.org/dist/Catalyst-Controller-WrapCGI>
303 =head1 COPYRIGHT & LICENSE
305 Copyright (c) 2008 Matt S. Trout
307 This program is free software; you can redistribute it and/or modify it
308 under the same terms as Perl itself.
312 1; # End of Catalyst::Controller::WrapCGI
314 # vim: expandtab shiftwidth=2 ts=2 tw=80: