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1 | package Catalyst::Controller::CGIBin; |
2 | |
3 | use strict; |
4 | use warnings; |
5 | |
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6 | use MRO::Compat; |
7 | use mro 'c3'; |
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8 | use File::Slurp 'slurp'; |
9 | use File::Find::Rule (); |
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10 | use Catalyst::Exception (); |
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11 | use File::Spec::Functions qw/splitdir abs2rel/; |
12 | use IPC::Open3; |
13 | use Symbol 'gensym'; |
14 | use List::MoreUtils 'any'; |
15 | use IO::File (); |
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16 | use Carp; |
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17 | use namespace::clean -except => 'meta'; |
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18 | |
19 | use parent 'Catalyst::Controller::WrapCGI'; |
20 | |
21 | =head1 NAME |
22 | |
23 | Catalyst::Controller::CGIBin - Serve CGIs from root/cgi-bin |
24 | |
25 | =head1 VERSION |
26 | |
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27 | Version 0.006 |
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28 | |
29 | =cut |
30 | |
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31 | our $VERSION = '0.006'; |
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32 | |
33 | =head1 SYNOPSIS |
34 | |
35 | In your controller: |
36 | |
37 | package MyApp::Controller::Foo; |
38 | |
39 | use parent qw/Catalyst::Controller::CGIBin/; |
40 | |
41 | # example of a forward to /cgi-bin/hlagh/mtfnpy.cgi |
42 | sub dongs : Local Args(0) { |
43 | my ($self, $c) = @_; |
44 | $c->forward($self->cgi_action('hlagh/mtfnpy.cgi')); |
45 | } |
46 | |
47 | In your .conf: |
48 | |
49 | <Controller::Foo> |
50 | <CGI> |
51 | username_field username # used for REMOTE_USER env var |
52 | pass_env PERL5LIB |
53 | pass_env PATH |
54 | pass_env /^MYAPP_/ |
55 | </CGI> |
56 | </Controller::Foo> |
57 | |
58 | =head1 DESCRIPTION |
59 | |
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60 | Dispatches to CGI files in root/cgi-bin for /cgi-bin/ paths. |
61 | |
62 | Unlike L<ModPerl::Registry> this module does _NOT_ stat and recompile the CGI |
63 | for every invocation. If this is something you need, let me know. |
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64 | |
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65 | CGI paths are converted into action names using cgi_action (below.) |
66 | |
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67 | A path such as C<root/cgi-bin/hlagh/bar.cgi> will get the private path |
68 | C<foo/CGI_hlagh_bar_cgi>, for controller Foo, with the C</>s converted to C<_>s |
69 | and prepended with C<CGI_>, as well as all non-word characters converted to |
70 | C<_>s. This is because L<Catalyst> action names can't have non-word characters |
71 | in them. |
72 | |
73 | Inherits from L<Catalyst::Controller::WrapCGI>, see the documentation for that |
74 | module for configuration information. |
75 | |
76 | =cut |
77 | |
78 | sub register_actions { |
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79 | my ($self, $app) = @_; |
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80 | |
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81 | my $cgi_bin = $app->path_to('root', 'cgi-bin'); |
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82 | |
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83 | my $namespace = $self->action_namespace($app); |
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84 | |
85 | my $class = ref $self || $self; |
86 | |
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87 | for my $file (File::Find::Rule->file->in($cgi_bin)) { |
88 | my $cgi_path = abs2rel($file, $cgi_bin); |
89 | |
90 | next if any { $_ eq '.svn' } splitdir $cgi_path; |
91 | |
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92 | my $path = join '/' => splitdir($cgi_path); |
93 | my $action_name = $self->cgi_action($path); |
9cc2dd4c |
94 | my $public_path = $self->cgi_path($path); |
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95 | my $reverse = $namespace ? "$namespace/$action_name" : $action_name; |
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96 | my $attrs = { Path => [ $public_path ], Args => [ 0 ] }; |
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97 | |
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98 | my ($cgi, $type); |
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99 | |
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100 | if ($self->is_perl_cgi($file)) { # syntax check passed |
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101 | $type = 'Perl'; |
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102 | $cgi = $self->wrap_perl_cgi($file, $action_name); |
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103 | } else { |
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104 | $type = 'Non-Perl'; |
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105 | $cgi = $self->wrap_nonperl_cgi($file, $action_name); |
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106 | } |
107 | |
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108 | $app->log->info("Registering root/cgi-bin/$cgi_path as a $type CGI.") |
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109 | if $app->debug; |
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110 | |
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111 | my $code = sub { |
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112 | my ($controller, $context) = @_; |
113 | $controller->cgi_to_response($context, $cgi) |
114 | }; |
115 | |
116 | my $action = $self->create_action( |
117 | name => $action_name, |
118 | code => $code, |
119 | reverse => $reverse, |
120 | namespace => $namespace, |
121 | class => $class, |
122 | attributes => $attrs |
123 | ); |
124 | |
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125 | $app->dispatcher->register($app, $action); |
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126 | } |
127 | |
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128 | $self->next::method($app, @_); |
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129 | |
130 | # Tell Static::Simple to ignore the cgi-bin dir. |
131 | if (!any{ $_ eq 'cgi-bin' } @{ $app->config->{static}{ignore_dirs}||[] }) { |
132 | push @{ $app->config->{static}{ignore_dirs} }, 'cgi-bin'; |
133 | } |
21a20b7e |
134 | } |
135 | |
136 | =head1 METHODS |
137 | |
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138 | =head2 $self->cgi_action($cgi) |
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139 | |
140 | Takes a path to a CGI from C<root/cgi-bin> such as C<foo/bar.cgi> and returns |
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141 | the action name it is registered as. See L</DESCRIPTION> for a discussion on how |
142 | CGI actions are named. |
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143 | |
144 | =cut |
145 | |
146 | sub cgi_action { |
147 | my ($self, $cgi) = @_; |
148 | |
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149 | my $action_name = 'CGI_' . join '_' => split '/' => $cgi; |
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150 | $action_name =~ s/\W/_/g; |
151 | |
152 | $action_name |
153 | } |
154 | |
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155 | =head2 $self->cgi_path($cgi) |
156 | |
157 | Takes a path to a CGI from C<root/cgi-bin> such as C<foo/bar.cgi> and returns |
158 | the public path it should be registered under. |
159 | |
160 | The default is C<cgi-bin/$cgi>. |
161 | |
162 | =cut |
163 | |
164 | sub cgi_path { |
165 | my ($self, $cgi) = @_; |
166 | return "cgi-bin/$cgi"; |
167 | } |
168 | |
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169 | =head2 $self->is_perl_cgi($path) |
170 | |
171 | Tries to figure out whether the CGI is Perl or not. |
172 | |
173 | If it's Perl, it will be inlined into a sub instead of being forked off, see |
174 | wrap_perl_cgi (below.) |
175 | |
176 | If it's not doing what you expect, you might want to override it, and let me |
177 | know as well! |
178 | |
179 | =cut |
180 | |
181 | sub is_perl_cgi { |
182 | my ($self, $cgi) = @_; |
183 | |
184 | my $shebang = IO::File->new($cgi)->getline; |
185 | |
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186 | return 0 if $shebang !~ /perl/ && $cgi !~ /\.pl\z/; |
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187 | |
188 | my $taint_check = $shebang =~ /-T/ ? '-T' : ''; |
189 | |
190 | open NULL, '>', File::Spec->devnull; |
191 | my $pid = open3(gensym, '&>NULL', '&>NULL', "$^X $taint_check -c $cgi"); |
192 | close NULL; |
193 | waitpid $pid, 0; |
194 | |
195 | $? >> 8 == 0 |
196 | } |
197 | |
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198 | =head2 $self->wrap_perl_cgi($path, $action_name) |
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199 | |
200 | Takes the path to a Perl CGI and returns a coderef suitable for passing to |
201 | cgi_to_response (from L<Catalyst::Controller::WrapCGI>.) |
202 | |
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203 | C<$action_name> is the generated name for the action representing the CGI file. |
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204 | |
205 | This is similar to how L<ModPerl::Registry> works, but will only work for |
206 | well-written CGIs. Otherwise, you may have to override this method to do |
207 | something more involved (see L<ModPerl::PerlRun>.) |
208 | |
209 | =cut |
210 | |
211 | sub wrap_perl_cgi { |
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212 | my ($self, $cgi, $action_name) = @_; |
213 | |
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214 | my $code = slurp $cgi; |
215 | |
216 | $code =~ s/^__DATA__\r?\n(.*)//ms; |
217 | my $data = $1; |
218 | |
219 | my $coderef = do { |
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220 | no warnings; |
12d29ebf |
221 | eval ' |
222 | package Catalyst::Controller::CGIBin::_CGIs_::'.$action_name.'; |
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223 | sub {' |
224 | . 'local *DATA;' |
225 | . q{open DATA, '<', \$data;} |
226 | . $code |
227 | . '}'; |
228 | }; |
229 | |
230 | croak __PACKAGE__ . ": Could not compile $cgi to coderef: $@" if $@; |
231 | |
232 | $coderef |
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233 | } |
234 | |
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235 | =head2 $self->wrap_nonperl_cgi($path, $action_name) |
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236 | |
237 | Takes the path to a non-Perl CGI and returns a coderef for executing it. |
238 | |
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239 | C<$action_name> is the generated name for the action representing the CGI file. |
240 | |
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241 | By default returns: |
242 | |
243 | sub { system $path } |
244 | |
245 | =cut |
246 | |
247 | sub wrap_nonperl_cgi { |
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248 | my ($self, $cgi, $action_name) = @_; |
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249 | |
250 | sub { system $cgi } |
251 | } |
252 | |
253 | =head1 SEE ALSO |
254 | |
255 | L<Catalyst::Controller::WrapCGI>, L<CatalystX::GlobalContext>, |
256 | L<Catalyst::Controller>, L<CGI>, L<Catalyst> |
257 | |
21a20b7e |
258 | =head1 AUTHOR |
259 | |
260 | Rafael Kitover, C<< <rkitover at cpan.org> >> |
261 | |
262 | =head1 BUGS |
263 | |
264 | Please report any bugs or feature requests to C<bug-catalyst-controller-wrapcgi at |
265 | rt.cpan.org>, or through the web interface at |
266 | L<http://rt.cpan.org/NoAuth/ReportBug.html?Queue=Catalyst-Controller-WrapCGI>. |
267 | I will be notified, and then you'll automatically be notified of progress on |
268 | your bug as I make changes. |
269 | |
270 | =head1 SUPPORT |
271 | |
272 | More information at: |
273 | |
274 | =over 4 |
275 | |
276 | =item * RT: CPAN's request tracker |
277 | |
278 | L<http://rt.cpan.org/NoAuth/Bugs.html?Dist=Catalyst-Controller-WrapCGI> |
279 | |
280 | =item * AnnoCPAN: Annotated CPAN documentation |
281 | |
282 | L<http://annocpan.org/dist/Catalyst-Controller-WrapCGI> |
283 | |
284 | =item * CPAN Ratings |
285 | |
286 | L<http://cpanratings.perl.org/d/Catalyst-Controller-WrapCGI> |
287 | |
288 | =item * Search CPAN |
289 | |
290 | L<http://search.cpan.org/dist/Catalyst-Controller-WrapCGI> |
291 | |
292 | =back |
293 | |
294 | =head1 COPYRIGHT & LICENSE |
295 | |
296 | Copyright (c) 2008 Rafael Kitover |
297 | |
298 | This program is free software; you can redistribute it and/or modify it |
299 | under the same terms as Perl itself. |
300 | |
301 | =cut |
302 | |
303 | 1; # End of Catalyst::Controller::CGIBin |
304 | |
305 | # vim: expandtab shiftwidth=4 ts=4 tw=80: |