Commit | Line | Data |
b2e1304d |
1 | package HTTP::Request::AsCGI; |
2 | |
3 | use strict; |
4 | use warnings; |
090cc060 |
5 | use bytes; |
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6 | use base 'Class::Accessor::Fast'; |
7 | |
8 | use Carp; |
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9 | use IO::Handle; |
bd7813ac |
10 | use IO::File; |
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11 | |
090cc060 |
12 | __PACKAGE__->mk_accessors(qw[ enviroment request stdin stdout stderr ]); |
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13 | |
14 | our $VERSION = 0.1; |
15 | |
16 | sub new { |
17 | my $class = shift; |
18 | my $request = shift; |
19 | |
20 | my $self = { |
21 | request => $request, |
22 | restored => 0, |
6f5fb9a7 |
23 | setuped => 0, |
bd7813ac |
24 | stdin => IO::File->new_tmpfile, |
17b370b0 |
25 | stdout => IO::File->new_tmpfile |
b2e1304d |
26 | }; |
27 | |
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28 | my $host = $request->header('Host'); |
29 | my $uri = $request->uri->clone; |
30 | $uri->scheme('http') unless $uri->scheme; |
31 | $uri->host('localhost') unless $uri->host; |
32 | $uri->port(80) unless $uri->port; |
33 | $uri->host_port($host) unless !$host || ( $host eq $uri->host_port ); |
34 | |
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35 | $self->{enviroment} = { |
36 | GATEWAY_INTERFACE => 'CGI/1.1', |
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37 | HTTP_HOST => $uri->host_port, |
38 | HTTPS => ( $uri->scheme eq 'https' ) ? 'ON' : 'OFF', # not in RFC 3875 |
39 | PATH_INFO => $uri->path, |
40 | QUERY_STRING => $uri->query || '', |
c1e07bf1 |
41 | SCRIPT_NAME => '/', |
30efa07d |
42 | SERVER_NAME => $uri->host, |
43 | SERVER_PORT => $uri->port, |
b2e1304d |
44 | SERVER_PROTOCOL => $request->protocol || 'HTTP/1.1', |
30efa07d |
45 | SERVER_SOFTWARE => "HTTP-Request-AsCGI/$VERSION", |
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46 | REMOTE_ADDR => '127.0.0.1', |
47 | REMOTE_HOST => 'localhost', |
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48 | REMOTE_PORT => int( rand(64000) + 1000 ), # not in RFC 3875 |
49 | REQUEST_URI => $uri->path_query || '/', # not in RFC 3875 |
b2e1304d |
50 | REQUEST_METHOD => $request->method, |
51 | @_ |
52 | }; |
53 | |
54 | foreach my $field ( $request->headers->header_field_names ) { |
55 | |
56 | my $key = uc($field); |
2aaf55bc |
57 | $key =~ tr/-/_/; |
b2e1304d |
58 | $key = 'HTTP_' . $key unless $field =~ /^Content-(Length|Type)$/; |
59 | |
60 | unless ( exists $self->{enviroment}->{$key} ) { |
61 | $self->{enviroment}->{$key} = $request->headers->header($field); |
62 | } |
63 | } |
64 | |
65 | return $class->SUPER::new($self); |
66 | } |
67 | |
68 | sub setup { |
69 | my $self = shift; |
70 | |
090cc060 |
71 | $self->{restore}->{enviroment} = {%ENV}; |
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72 | |
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73 | open( $self->{restore}->{stdin}, '>&', STDIN->fileno ) |
74 | or croak("Can't dup stdin: $!"); |
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75 | |
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76 | open( STDIN, '<&=', $self->stdin->fileno ) |
77 | or croak("Can't open stdin: $!"); |
441eeb04 |
78 | |
17b370b0 |
79 | binmode( $self->stdin ); |
80 | binmode( STDIN ); |
b2e1304d |
81 | |
82 | if ( $self->request->content_length ) { |
83 | |
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84 | syswrite( $self->stdin, $self->request->content ) |
780060e5 |
85 | or croak("Can't write request content to stdin handle: $!"); |
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86 | |
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87 | sysseek( $self->stdin, 0, SEEK_SET ) |
780060e5 |
88 | or croak("Can't seek stdin handle: $!"); |
b2e1304d |
89 | } |
90 | |
090cc060 |
91 | if ( $self->stdout ) { |
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92 | |
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93 | open( $self->{restore}->{stdout}, '>&', STDOUT->fileno ) |
94 | or croak("Can't dup stdout: $!"); |
95 | |
96 | open( STDOUT, '>&=', $self->stdout->fileno ) |
97 | or croak("Can't open stdout: $!"); |
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98 | |
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99 | binmode( $self->stdout ); |
100 | binmode( STDOUT); |
090cc060 |
101 | } |
102 | |
103 | if ( $self->stderr ) { |
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104 | |
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105 | open( $self->{restore}->{stderr}, '>&', STDERR->fileno ) |
106 | or croak("Can't dup stderr: $!"); |
107 | |
108 | open( STDERR, '>&=', $self->stderr->fileno ) |
109 | or croak("Can't open stderr: $!"); |
441eeb04 |
110 | |
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111 | binmode( $self->stderr ); |
112 | binmode( STDERR ); |
090cc060 |
113 | } |
114 | |
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115 | { |
116 | no warnings 'uninitialized'; |
117 | %ENV = %{ $self->enviroment }; |
118 | } |
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119 | |
120 | if ( $INC{'CGI.pm'} ) { |
121 | CGI::initialize_globals(); |
122 | } |
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123 | |
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124 | $self->{setuped}++; |
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125 | |
126 | return $self; |
127 | } |
128 | |
780060e5 |
129 | sub response { |
130 | my ( $self, $callback ) = @_; |
131 | |
132 | return undef unless $self->{setuped}; |
133 | return undef unless $self->{restored}; |
090cc060 |
134 | return undef unless $self->{restore}->{stdout}; |
780060e5 |
135 | |
136 | require HTTP::Response; |
137 | |
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138 | seek( $self->stdout, 0, SEEK_SET ) |
139 | or croak("Can't seek stdout handle: $!"); |
780060e5 |
140 | |
decf17dc |
141 | my $message; |
142 | while ( my $line = $self->stdout->getline ) { |
780060e5 |
143 | $message .= $line; |
decf17dc |
144 | last if $message =~ /\x0d?\x0a\x0d?\x0a$/; |
780060e5 |
145 | } |
146 | |
147 | unless ( $message =~ /^HTTP/ ) { |
decf17dc |
148 | $message = "HTTP/1.1 200 OK\x0d\x0a" . $message; |
149 | } |
150 | |
151 | my $response = HTTP::Response->new; |
152 | my @headers = split( /\x0d?\x0a/, $message ); |
153 | my $status = shift(@headers); |
154 | |
155 | unless ( $status =~ s/^(HTTP\/\d\.\d) (\d{3}) (.*)$// ) { |
156 | croak( "Invalid Status-Line: '$status'" ); |
780060e5 |
157 | } |
158 | |
decf17dc |
159 | $response->protocol($1); |
160 | $response->code($2); |
161 | $response->message($3); |
162 | |
163 | my $token = qr/[^][\x00-\x1f\x7f()<>@,;:\\"\/?={} \t]+/; |
164 | |
165 | foreach my $header (@headers) { |
166 | |
167 | unless( $header =~ s/^($token):[\t ]*// ) { |
168 | croak( "Invalid header field name : '$header'" ); |
169 | } |
170 | |
171 | $response->push_header( $1 => $header ); |
172 | } |
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173 | |
174 | if ( my $code = $response->header('Status') ) { |
175 | $response->code($code); |
decf17dc |
176 | $response->message( HTTP::Status::status_message($code) ); |
780060e5 |
177 | } |
178 | |
780060e5 |
179 | $response->headers->date( time() ); |
180 | |
090cc060 |
181 | if ($callback) { |
780060e5 |
182 | $response->content( sub { |
183 | if ( $self->stdout->read( my $buffer, 4096 ) ) { |
184 | return $buffer; |
185 | } |
186 | return undef; |
090cc060 |
187 | }); |
780060e5 |
188 | } |
189 | else { |
190 | my $length = 0; |
191 | while ( $self->stdout->read( my $buffer, 4096 ) ) { |
192 | $length += length($buffer); |
193 | $response->add_content($buffer); |
194 | } |
decf17dc |
195 | |
196 | if ( $length && !$response->content_length ) { |
197 | $response->content_length($length); |
198 | } |
780060e5 |
199 | } |
200 | |
780060e5 |
201 | return $response; |
202 | } |
203 | |
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204 | sub restore { |
205 | my $self = shift; |
206 | |
207 | %ENV = %{ $self->{restore}->{enviroment} }; |
208 | |
209 | open( STDIN, '>&', $self->{restore}->{stdin} ) |
210 | or croak("Can't restore stdin: $!"); |
211 | |
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212 | sysseek( $self->stdin, 0, SEEK_SET ) |
780060e5 |
213 | or croak("Can't seek stdin: $!"); |
12852959 |
214 | |
090cc060 |
215 | if ( $self->{restore}->{stdout} ) { |
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216 | |
217 | STDOUT->flush |
218 | or croak("Can't flush stdout: $!"); |
219 | |
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220 | open( STDOUT, '>&', $self->{restore}->{stdout} ) |
221 | or croak("Can't restore stdout: $!"); |
222 | |
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223 | sysseek( $self->stdout, 0, SEEK_SET ) |
6f5fb9a7 |
224 | or croak("Can't seek stdout: $!"); |
225 | } |
12852959 |
226 | |
090cc060 |
227 | if ( $self->{restore}->{stderr} ) { |
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228 | |
229 | STDERR->flush |
230 | or croak("Can't flush stderr: $!"); |
231 | |
090cc060 |
232 | open( STDERR, '>&', $self->{restore}->{stderr} ) |
233 | or croak("Can't restore stderr: $!"); |
234 | |
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235 | sysseek( $self->stderr, 0, SEEK_SET ) |
6f5fb9a7 |
236 | or croak("Can't seek stderr: $!"); |
237 | } |
12852959 |
238 | |
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239 | $self->{restored}++; |
090cc060 |
240 | |
241 | return $self; |
b2e1304d |
242 | } |
243 | |
244 | sub DESTROY { |
245 | my $self = shift; |
6f5fb9a7 |
246 | $self->restore if $self->{setuped} && !$self->{restored}; |
b2e1304d |
247 | } |
248 | |
249 | 1; |
250 | |
251 | __END__ |
252 | |
253 | =head1 NAME |
254 | |
bd7813ac |
255 | HTTP::Request::AsCGI - Setup a CGI enviroment from a HTTP::Request |
b2e1304d |
256 | |
257 | =head1 SYNOPSIS |
258 | |
bd7813ac |
259 | use CGI; |
260 | use HTTP::Request; |
261 | use HTTP::Request::AsCGI; |
262 | |
263 | my $request = HTTP::Request->new( GET => 'http://www.host.com/' ); |
264 | my $stdout; |
265 | |
266 | { |
267 | my $c = HTTP::Request::AsCGI->new($request)->setup; |
268 | my $q = CGI->new; |
269 | |
270 | print $q->header, |
271 | $q->start_html('Hello World'), |
272 | $q->h1('Hello World'), |
273 | $q->end_html; |
274 | |
275 | $stdout = $c->stdout; |
276 | |
277 | # enviroment and descriptors will automatically be restored when $c is destructed. |
278 | } |
279 | |
bd7813ac |
280 | while ( my $line = $stdout->getline ) { |
281 | print $line; |
282 | } |
283 | |
b2e1304d |
284 | =head1 DESCRIPTION |
285 | |
286 | =head1 METHODS |
287 | |
288 | =over 4 |
289 | |
290 | =item new |
291 | |
bd7813ac |
292 | =item enviroment |
293 | |
b2e1304d |
294 | =item setup |
295 | |
296 | =item restore |
297 | |
298 | =item request |
299 | |
780060e5 |
300 | =item response |
301 | |
b2e1304d |
302 | =item stdin |
303 | |
304 | =item stdout |
305 | |
306 | =item stderr |
307 | |
308 | =back |
309 | |
310 | =head1 BUGS |
311 | |
17b370b0 |
312 | =item THANKS TO |
313 | |
314 | Thomas L. Shinnick for his valuable win32 testing. |
315 | |
b2e1304d |
316 | =head1 AUTHOR |
317 | |
318 | Christian Hansen, C<ch@ngmedia.com> |
319 | |
320 | =head1 LICENSE |
321 | |
322 | This library is free software. You can redistribute it and/or modify |
323 | it under the same terms as perl itself. |
324 | |
325 | =cut |