Commit | Line | Data |
b2e1304d |
1 | package HTTP::Request::AsCGI; |
2 | |
3 | use strict; |
4 | use warnings; |
5 | use base 'Class::Accessor::Fast'; |
6 | |
7 | use Carp; |
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8 | use IO::File; |
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9 | |
10 | __PACKAGE__->mk_accessors( qw[ enviroment request stdin stdout stderr ] ); |
11 | |
12 | our $VERSION = 0.1; |
13 | |
14 | sub new { |
15 | my $class = shift; |
16 | my $request = shift; |
17 | |
18 | my $self = { |
19 | request => $request, |
20 | restored => 0, |
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21 | stdin => IO::File->new_tmpfile, |
22 | stdout => IO::File->new_tmpfile, |
23 | stderr => IO::File->new_tmpfile |
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24 | }; |
25 | |
26 | $self->{enviroment} = { |
27 | GATEWAY_INTERFACE => 'CGI/1.1', |
28 | HTTP_HOST => $request->uri->host_port, |
29 | QUERY_STRING => $request->uri->query || '', |
30 | SCRIPT_NAME => $request->uri->path || '/', |
31 | SERVER_NAME => $request->uri->host, |
32 | SERVER_PORT => $request->uri->port, |
33 | SERVER_PROTOCOL => $request->protocol || 'HTTP/1.1', |
34 | SERVER_SOFTWARE => __PACKAGE__ . "/" . $VERSION, |
35 | REMOTE_ADDR => '127.0.0.1', |
36 | REMOTE_HOST => 'localhost', |
37 | REMOTE_PORT => int( rand(64000) + 1000 ), # not in RFC 3875 |
38 | REQUEST_URI => $request->uri->path || '/', # not in RFC 3875 |
39 | REQUEST_METHOD => $request->method, |
40 | @_ |
41 | }; |
42 | |
43 | foreach my $field ( $request->headers->header_field_names ) { |
44 | |
45 | my $key = uc($field); |
46 | $key =~ tr/_/-/; |
47 | $key = 'HTTP_' . $key unless $field =~ /^Content-(Length|Type)$/; |
48 | |
49 | unless ( exists $self->{enviroment}->{$key} ) { |
50 | $self->{enviroment}->{$key} = $request->headers->header($field); |
51 | } |
52 | } |
53 | |
54 | return $class->SUPER::new($self); |
55 | } |
56 | |
57 | sub setup { |
58 | my $self = shift; |
59 | |
60 | open( my $stdin, '>&', STDIN->fileno ) |
61 | or croak("Can't dup stdin: $!"); |
62 | |
63 | open( my $stdout, '>&', STDOUT->fileno ) |
64 | or croak("Can't dup stdout: $!"); |
65 | |
66 | open( my $stderr, '>&', STDERR->fileno ) |
67 | or croak("Can't dup stderr: $!"); |
68 | |
69 | $self->{restore} = { |
70 | stdin => $stdin, |
71 | stdout => $stdout, |
72 | stderr => $stderr, |
73 | enviroment => {%ENV} |
74 | }; |
75 | |
76 | if ( $self->request->content_length ) { |
77 | |
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78 | $self->stdin->syswrite( $self->request->content ) |
79 | or croak("Can't write content to stdin: $!"); |
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80 | |
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81 | $self->stdin->sysseek( 0, SEEK_SET ) |
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82 | or croak("Can't seek stdin: $!"); |
83 | } |
84 | |
85 | %ENV = %{ $self->enviroment }; |
86 | |
87 | open( STDIN, '<&=', $self->stdin->fileno ) |
88 | or croak("Can't open stdin: $!"); |
89 | |
90 | open( STDOUT, '>&=', $self->stdout->fileno ) |
91 | or croak("Can't open stdout: $!"); |
92 | |
93 | open( STDERR, '>&=', $self->stderr->fileno ) |
94 | or croak("Can't open stderr: $!"); |
95 | |
96 | return $self; |
97 | } |
98 | |
99 | sub restore { |
100 | my $self = shift; |
101 | |
102 | %ENV = %{ $self->{restore}->{enviroment} }; |
103 | |
104 | open( STDIN, '>&', $self->{restore}->{stdin} ) |
105 | or croak("Can't restore stdin: $!"); |
106 | |
107 | open( STDOUT, '>&', $self->{restore}->{stdout} ) |
108 | or croak("Can't restore stdout: $!"); |
109 | |
110 | open( STDERR, '>&', $self->{restore}->{stderr} ) |
111 | or croak("Can't restore stderr: $!"); |
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112 | |
113 | $self->stdin->sysseek( 0, SEEK_SET ) |
114 | or croak("Can't seek stdin: $!"); |
115 | |
116 | $self->stdout->sysseek( 0, SEEK_SET ) |
117 | or croak("Can't seek stdout: $!"); |
118 | |
119 | $self->stderr->sysseek( 0, SEEK_SET ) |
120 | or croak("Can't seek stderr: $!"); |
121 | |
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122 | $self->{restored}++; |
123 | } |
124 | |
125 | sub DESTROY { |
126 | my $self = shift; |
127 | $self->restore unless $self->{restored}; |
128 | } |
129 | |
130 | 1; |
131 | |
132 | __END__ |
133 | |
134 | =head1 NAME |
135 | |
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136 | HTTP::Request::AsCGI - Setup a CGI enviroment from a HTTP::Request |
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137 | |
138 | =head1 SYNOPSIS |
139 | |
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140 | use CGI; |
141 | use HTTP::Request; |
142 | use HTTP::Request::AsCGI; |
143 | |
144 | my $request = HTTP::Request->new( GET => 'http://www.host.com/' ); |
145 | my $stdout; |
146 | |
147 | { |
148 | my $c = HTTP::Request::AsCGI->new($request)->setup; |
149 | my $q = CGI->new; |
150 | |
151 | print $q->header, |
152 | $q->start_html('Hello World'), |
153 | $q->h1('Hello World'), |
154 | $q->end_html; |
155 | |
156 | $stdout = $c->stdout; |
157 | |
158 | # enviroment and descriptors will automatically be restored when $c is destructed. |
159 | } |
160 | |
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161 | while ( my $line = $stdout->getline ) { |
162 | print $line; |
163 | } |
164 | |
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165 | =head1 DESCRIPTION |
166 | |
167 | =head1 METHODS |
168 | |
169 | =over 4 |
170 | |
171 | =item new |
172 | |
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173 | =item enviroment |
174 | |
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175 | =item setup |
176 | |
177 | =item restore |
178 | |
179 | =item request |
180 | |
181 | =item stdin |
182 | |
183 | =item stdout |
184 | |
185 | =item stderr |
186 | |
187 | =back |
188 | |
189 | =head1 BUGS |
190 | |
191 | =head1 AUTHOR |
192 | |
193 | Christian Hansen, C<ch@ngmedia.com> |
194 | |
195 | =head1 LICENSE |
196 | |
197 | This library is free software. You can redistribute it and/or modify |
198 | it under the same terms as perl itself. |
199 | |
200 | =cut |