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1 | package Catalyst::Controller::WrapCGI; |
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2 | |
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3 | use strict; |
4 | use warnings; |
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5 | use parent 'Catalyst::Controller'; |
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6 | |
7 | use HTTP::Request::AsCGI; |
8 | use HTTP::Request; |
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9 | use URI; |
10 | |
11 | =head1 NAME |
12 | |
13 | Catalyst::Controller::WrapCGI - Run CGIs in Catalyst |
14 | |
15 | =head1 VERSION |
16 | |
17 | Version 0.001 |
18 | |
19 | =cut |
20 | |
21 | our $VERSION = '0.001'; |
22 | |
23 | =head1 SYNOPSIS |
24 | |
25 | package MyApp::Controller::Foo; |
26 | |
27 | use parent qw/Catalyst::Controller::WrapCGI/; |
28 | |
29 | sub hello : Path('cgi-bin/hello.cgi') { |
30 | my ($self, $c) = @_; |
31 | |
32 | $self->cgi_to_response($c, sub { |
33 | use CGI ':standard'; |
34 | |
35 | print header, start_html('Hello'), |
36 | h1('Catalyst Rocks!'), |
37 | end_html; |
38 | }); |
39 | } |
40 | |
41 | =cut |
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42 | |
43 | # Hack-around because Catalyst::Engine::HTTP goes and changes |
44 | # them to be the remote socket, and FCGI.pm does even dumber things. |
45 | |
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46 | open my $REAL_STDIN, "<&=".fileno(*STDIN); |
47 | open my $REAL_STDOUT, ">>&=".fileno(*STDOUT); |
48 | |
49 | =head1 METHODS |
50 | |
51 | =head2 $self->cgi_to_response($c, $coderef) |
52 | |
53 | Does the magic of running $coderef in a CGI environment, and populating the |
54 | appropriate parts of your Catalyst context with the results. |
55 | |
56 | =cut |
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57 | |
58 | sub cgi_to_response { |
59 | my ($self, $c, $script) = @_; |
60 | my $res = $self->wrap_cgi($c, $script); |
61 | |
62 | # if the CGI doesn't set the response code but sets location they were |
63 | # probably trying to redirect so set 302 for them |
64 | |
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65 | my $location = $res->headers->header('Location'); |
66 | |
67 | if (defined $location && length $location && $res->code == 200) { |
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68 | $c->res->status(302); |
69 | } else { |
70 | $c->res->status($res->code); |
71 | } |
72 | $c->res->body($res->content); |
73 | $c->res->headers($res->headers); |
74 | } |
75 | |
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76 | =head2 $self->wrap_cgi($c, $coderef) |
77 | |
78 | Runs $coderef in a CGI environment using L<HTTP::Request::AsCGI>, returns an |
79 | L<HTTP::Response>. |
80 | |
81 | The CGI environment is set up based on $c. |
82 | |
83 | Used by cgi_to_response, which is probably what you want to use as well. |
84 | |
85 | =cut |
86 | |
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87 | sub wrap_cgi { |
88 | my ($self, $c, $call) = @_; |
89 | my $req = HTTP::Request->new( |
90 | map { $c->req->$_ } qw/method uri headers/ |
91 | ); |
92 | my $body = $c->req->body; |
93 | my $body_content = ''; |
94 | |
95 | $req->content_type($c->req->content_type); # set this now so we can override |
96 | |
97 | if ($body) { # Slurp from body filehandle |
98 | local $/; $body_content = <$body>; |
99 | } else { |
100 | my $body_params = $c->req->body_parameters; |
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101 | if (%$body_params) { |
102 | my $encoder = URI->new; |
103 | $encoder->query_form(%$body_params); |
104 | $body_content = $encoder->query; |
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105 | $req->content_type('application/x-www-form-urlencoded'); |
106 | } |
107 | } |
108 | |
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109 | $req->content($body_content); |
110 | $req->content_length(length($body_content)); |
111 | my $user = (($c->can('user_exists') && $c->user_exists) |
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112 | ? eval { $c->user->obj->username } |
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113 | : ''); |
114 | my $env = HTTP::Request::AsCGI->new( |
115 | $req, |
116 | REMOTE_USER => $user, |
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117 | %ENV |
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118 | ); |
119 | |
120 | { |
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121 | local *STDIN = $REAL_STDIN; # restore the real ones so the filenos |
122 | local *STDOUT = $REAL_STDOUT; # are 0 and 1 for the env setup |
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123 | |
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124 | my $old = select($REAL_STDOUT); # in case somebody just calls 'print' |
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125 | |
126 | my $saved_error; |
127 | |
128 | $env->setup; |
129 | eval { $call->() }; |
130 | $saved_error = $@; |
131 | $env->restore; |
132 | |
133 | select($old); |
134 | |
135 | warn "CGI invoke failed: $saved_error" if $saved_error; |
136 | |
137 | } |
138 | |
139 | return $env->response; |
140 | } |
141 | |
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142 | =head1 ACKNOWLEDGEMENTS |
143 | |
144 | Original development sponsored by L<http://www.altinity.com/> |
145 | |
146 | =head1 AUTHOR |
147 | |
148 | Matt S. Trout, C<< <mst at shadowcat.co.uk> >> |
149 | |
150 | =head1 BUGS |
151 | |
152 | Please report any bugs or feature requests to C<bug-catalyst-controller-wrapcgi |
153 | at rt.cpan.org>, or through the web interface at |
154 | L<http://rt.cpan.org/NoAuth/ReportBug.html?Queue=Catalyst-Controller-WrapCGI>. |
155 | I will be notified, and then you'll automatically be notified of progress on |
156 | your bug as I make changes. |
157 | |
158 | =head1 SUPPORT |
159 | |
160 | More information at: |
161 | |
162 | =over 4 |
163 | |
164 | =item * RT: CPAN's request tracker |
165 | |
166 | L<http://rt.cpan.org/NoAuth/Bugs.html?Dist=Catalyst-Controller-WrapCGI> |
167 | |
168 | =item * AnnoCPAN: Annotated CPAN documentation |
169 | |
170 | L<http://annocpan.org/dist/Catalyst-Controller-WrapCGI> |
171 | |
172 | =item * CPAN Ratings |
173 | |
174 | L<http://cpanratings.perl.org/d/Catalyst-Controller-WrapCGI> |
175 | |
176 | =item * Search CPAN |
177 | |
178 | L<http://search.cpan.org/dist/Catalyst-Controller-WrapCGI> |
179 | |
180 | =back |
181 | |
182 | =head1 COPYRIGHT & LICENSE |
183 | |
184 | Copyright (c) 2008 Matt S. Trout |
185 | |
186 | This program is free software; you can redistribute it and/or modify it |
187 | under the same terms as Perl itself. |
188 | |
189 | =cut |
190 | |
191 | 1; # End of Catalyst::Controller::WrapCGI |
192 | |
193 | # vim: expandtab shiftwidth=4 ts=4 tw=80: |