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1 | package Catalyst::Engine::CGI; |
2 | |
3 | use strict; |
4 | use base 'Catalyst::Engine'; |
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5 | |
6 | use CGI; |
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7 | use URI; |
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8 | use URI::http; |
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9 | |
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10 | __PACKAGE__->mk_accessors('cgi'); |
11 | |
12 | =head1 NAME |
13 | |
14 | Catalyst::Engine::CGI - The CGI Engine |
15 | |
16 | =head1 SYNOPSIS |
17 | |
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18 | A script using the Catalyst::Engine::CGI module might look like: |
19 | |
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20 | #!/usr/bin/perl -w |
21 | |
22 | use strict; |
23 | use lib '/path/to/MyApp/lib'; |
24 | use MyApp; |
25 | |
26 | MyApp->run; |
27 | |
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28 | The application module (C<MyApp>) would use C<Catalyst>, which loads the |
29 | appropriate engine module. |
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30 | |
31 | =head1 DESCRIPTION |
32 | |
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33 | This is the Catalyst engine specialized for the CGI environment (using the |
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34 | C<CGI> and C<CGI::Cookie> modules). Normally Catalyst will select the |
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35 | appropriate engine according to the environment that it detects, however you |
36 | can force Catalyst to use the CGI engine by specifying the following in your |
37 | application module: |
38 | |
39 | use Catalyst qw(-Engine=CGI); |
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40 | |
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41 | The performance of this way of using Catalyst is not expected to be |
42 | useful in production applications, but it may be helpful for development. |
43 | |
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44 | =head1 METHODS |
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45 | |
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46 | =over 4 |
47 | |
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48 | =item $c->cgi |
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49 | |
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50 | This config parameter contains the C<CGI> object. |
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51 | |
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52 | =back |
53 | |
54 | =head1 OVERLOADED METHODS |
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55 | |
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56 | This class overloads some methods from C<Catalyst::Engine>. |
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57 | |
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58 | =over 4 |
59 | |
60 | =item $c->finalize_headers |
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61 | |
62 | =cut |
63 | |
64 | sub finalize_headers { |
65 | my $c = shift; |
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66 | |
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67 | $c->response->header( Status => $c->response->status ); |
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68 | |
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69 | print $c->response->headers->as_string("\015\012"); |
70 | print "\015\012"; |
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71 | } |
72 | |
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73 | =item $c->finalize_output |
74 | |
75 | Prints the response output to STDOUT. |
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76 | |
77 | =cut |
78 | |
79 | sub finalize_output { |
80 | my $c = shift; |
81 | print $c->response->output; |
82 | } |
83 | |
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84 | =item $c->prepare_connection |
85 | |
86 | =cut |
87 | |
88 | sub prepare_connection { |
89 | my $c = shift; |
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90 | $c->req->hostname( $ENV{REMOTE_HOST} ); |
91 | $c->req->address( $ENV{REMOTE_ADDR} ); |
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92 | } |
93 | |
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94 | =item $c->prepare_headers |
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95 | |
96 | =cut |
97 | |
98 | sub prepare_headers { |
99 | my $c = shift; |
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100 | |
101 | while ( my ( $header, $value ) = each %ENV ) { |
102 | |
103 | next unless $header =~ /^(HTTP|CONTENT)/i; |
104 | |
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105 | ( my $field = $header ) =~ s/^HTTPS?_//; |
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106 | |
107 | $c->req->headers->header( $field => $value ); |
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108 | } |
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109 | |
110 | $c->req->method( $ENV{REQUEST_METHOD} || 'GET' ); |
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111 | } |
112 | |
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113 | =item $c->prepare_parameters |
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114 | |
115 | =cut |
116 | |
117 | sub prepare_parameters { |
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118 | my $c = shift; |
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119 | |
120 | my ( @params ); |
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121 | |
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122 | for my $param ( $c->cgi->url_param ) { |
123 | for my $value ( $c->cgi->url_param($param) ) { |
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124 | push ( @params, $param, $value ); |
125 | } |
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126 | } |
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127 | |
128 | for my $param ( $c->cgi->param ) { |
129 | for my $value ( $c->cgi->param($param) ) { |
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130 | push ( @params, $param, $value ); |
131 | } |
132 | } |
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133 | |
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134 | $c->req->_assign_values( $c->req->parameters, \@params ); |
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135 | } |
136 | |
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137 | =item $c->prepare_path |
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138 | |
139 | =cut |
140 | |
141 | sub prepare_path { |
142 | my $c = shift; |
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143 | |
144 | my $base; |
145 | { |
146 | my $scheme = $ENV{HTTPS} ? 'https' : 'http'; |
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147 | my $host = $ENV{HTTP_HOST} || $ENV{SERVER_NAME}; |
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148 | my $port = $ENV{SERVER_PORT} || 80; |
149 | my $path = $ENV{SCRIPT_NAME} || '/'; |
150 | |
151 | $base = URI->new; |
152 | $base->scheme($scheme); |
153 | $base->host($host); |
154 | $base->port($port); |
155 | $base->path($path); |
156 | |
157 | $base = $base->canonical->as_string; |
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158 | } |
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159 | |
160 | my $path = $ENV{PATH_INFO} || '/'; |
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161 | $path =~ s/%([0-9A-Fa-f]{2})/chr(hex($1))/eg; |
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162 | $path =~ s/^\///; |
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163 | |
164 | $c->req->base($base); |
165 | $c->req->path($path); |
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166 | } |
167 | |
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168 | =item $c->prepare_request |
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169 | |
170 | =cut |
171 | |
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172 | sub prepare_request { |
173 | my $c = shift; |
174 | $c->cgi( CGI->new ); |
175 | $c->cgi->_reset_globals; |
176 | } |
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177 | |
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178 | =item $c->prepare_uploads |
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179 | |
180 | =cut |
181 | |
182 | sub prepare_uploads { |
183 | my $c = shift; |
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184 | |
185 | my @uploads; |
186 | |
187 | for my $param ( $c->cgi->param ) { |
188 | |
189 | my @values = $c->cgi->param($param); |
190 | |
191 | next unless ref( $values[0] ); |
192 | |
193 | for my $fh (@values) { |
194 | |
195 | next unless my $size = ( stat $fh )[7]; |
196 | |
197 | my $info = $c->cgi->uploadInfo($fh); |
198 | my $tempname = $c->cgi->tmpFileName($fh); |
199 | my $type = $info->{'Content-Type'}; |
200 | my $disposition = $info->{'Content-Disposition'}; |
201 | my $filename = ( $disposition =~ / filename="([^;]*)"/ )[0]; |
202 | |
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203 | my $upload = Catalyst::Request::Upload->new( |
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204 | filename => $filename, |
205 | size => $size, |
206 | tempname => $tempname, |
207 | type => $type |
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208 | ); |
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209 | |
210 | push( @uploads, $param, $upload ); |
211 | } |
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212 | } |
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213 | |
214 | $c->req->_assign_values( $c->req->uploads, \@uploads ); |
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215 | } |
216 | |
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217 | =item $c->run |
218 | |
219 | =cut |
220 | |
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221 | sub run { shift->handler } |
222 | |
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223 | =back |
224 | |
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225 | =head1 SEE ALSO |
226 | |
227 | L<Catalyst>. |
228 | |
229 | =head1 AUTHOR |
230 | |
231 | Sebastian Riedel, C<sri@cpan.org> |
232 | |
233 | =head1 COPYRIGHT |
234 | |
235 | This program is free software, you can redistribute it and/or modify it under |
236 | the same terms as Perl itself. |
237 | |
238 | =cut |
239 | |
240 | 1; |