Commit | Line | Data |
32b29b79 |
1 | package HTTP::Body; |
2 | |
3 | use strict; |
4 | |
348fdd5a |
5 | use Carp qw[ ]; |
32b29b79 |
6 | |
4ba452d9 |
7 | our $VERSION = '1.02'; |
aac7ca02 |
8 | |
7e2df1d9 |
9 | our $TYPES = { |
4f5db602 |
10 | 'application/octet-stream' => 'HTTP::Body::OctetStream', |
11 | 'application/x-www-form-urlencoded' => 'HTTP::Body::UrlEncoded', |
5940e4c7 |
12 | 'multipart/form-data' => 'HTTP::Body::MultiPart', |
13 | 'multipart/related' => 'HTTP::Body::XFormsMultipart', |
14 | 'application/xml' => 'HTTP::Body::XForms' |
32b29b79 |
15 | }; |
16 | |
b018320d |
17 | require HTTP::Body::OctetStream; |
18 | require HTTP::Body::UrlEncoded; |
19 | require HTTP::Body::MultiPart; |
5940e4c7 |
20 | require HTTP::Body::XFormsMultipart; |
21 | require HTTP::Body::XForms; |
b018320d |
22 | |
0a66fd23 |
23 | use HTTP::Headers; |
24 | use HTTP::Message; |
25 | |
aac7ca02 |
26 | =head1 NAME |
27 | |
28 | HTTP::Body - HTTP Body Parser |
29 | |
30 | =head1 SYNOPSIS |
31 | |
32 | use HTTP::Body; |
17c3e9b3 |
33 | |
34 | sub handler : method { |
35 | my ( $class, $r ) = @_; |
36 | |
37 | my $content_type = $r->headers_in->get('Content-Type'); |
38 | my $content_length = $r->headers_in->get('Content-Length'); |
39 | |
40 | my $body = HTTP::Body->new( $content_type, $content_length ); |
41 | my $length = $content_length; |
42 | |
43 | while ( $length ) { |
44 | |
45 | $r->read( my $buffer, ( $length < 8192 ) ? $length : 8192 ); |
46 | |
47 | $length -= length($buffer); |
48 | |
49 | $body->add($buffer); |
50 | } |
51 | |
52 | my $uploads = $body->upload; # hashref |
53 | my $params = $body->param; # hashref |
54 | my $body = $body->body; # IO::Handle |
55 | } |
aac7ca02 |
56 | |
57 | =head1 DESCRIPTION |
58 | |
6215b02b |
59 | HTTP::Body parses chunks of HTTP POST data and supports |
60 | application/octet-stream, application/x-www-form-urlencoded, and |
61 | multipart/form-data. |
62 | |
0a66fd23 |
63 | Chunked bodies are supported by not passing a length value to new(). |
64 | |
6215b02b |
65 | It is currently used by L<Catalyst> to parse POST bodies. |
aac7ca02 |
66 | |
1ced50e0 |
67 | =head1 NOTES |
68 | |
69 | When parsing multipart bodies, temporary files are created to store any |
70 | uploaded files. You must delete these temporary files yourself after |
71 | processing them. |
72 | |
aac7ca02 |
73 | =head1 METHODS |
74 | |
6153c112 |
75 | =over 4 |
76 | |
77 | =item new |
78 | |
79 | Constructor. Takes content type and content length as parameters, |
80 | returns a L<HTTP::Body> object. |
aac7ca02 |
81 | |
82 | =cut |
83 | |
32b29b79 |
84 | sub new { |
85 | my ( $class, $content_type, $content_length ) = @_; |
86 | |
0a66fd23 |
87 | unless ( @_ >= 2 ) { |
88 | Carp::croak( $class, '->new( $content_type, [ $content_length ] )' ); |
32b29b79 |
89 | } |
7e2df1d9 |
90 | |
27ee4e94 |
91 | my $type; |
92 | foreach my $supported ( keys %{$TYPES} ) { |
93 | if ( index( lc($content_type), $supported ) >= 0 ) { |
94 | $type = $supported; |
95 | } |
96 | } |
97 | |
7e2df1d9 |
98 | my $body = $TYPES->{ $type || 'application/octet-stream' }; |
99 | |
32b29b79 |
100 | eval "require $body"; |
7e2df1d9 |
101 | |
102 | if ($@) { |
32b29b79 |
103 | die $@; |
104 | } |
7e2df1d9 |
105 | |
32b29b79 |
106 | my $self = { |
107 | buffer => '', |
0a66fd23 |
108 | chunk_buffer => '', |
44761c00 |
109 | body => undef, |
0a66fd23 |
110 | chunked => !defined $content_length, |
111 | content_length => defined $content_length ? $content_length : -1, |
32b29b79 |
112 | content_type => $content_type, |
58050177 |
113 | length => 0, |
7e2df1d9 |
114 | param => {}, |
115 | state => 'buffering', |
116 | upload => {} |
32b29b79 |
117 | }; |
118 | |
119 | bless( $self, $body ); |
7e2df1d9 |
120 | |
32b29b79 |
121 | return $self->init; |
122 | } |
123 | |
aac7ca02 |
124 | =item add |
125 | |
4deaf0f0 |
126 | Add string to internal buffer. Will call spin unless done. returns |
6153c112 |
127 | length before adding self. |
128 | |
aac7ca02 |
129 | =cut |
130 | |
32b29b79 |
131 | sub add { |
58050177 |
132 | my $self = shift; |
304dca13 |
133 | |
0a66fd23 |
134 | if ( $self->{chunked} ) { |
135 | $self->{chunk_buffer} .= $_[0]; |
136 | |
137 | while ( $self->{chunk_buffer} =~ m/^([\da-fA-F]+).*\x0D\x0A/ ) { |
138 | my $chunk_len = hex($1); |
139 | |
140 | if ( $chunk_len == 0 ) { |
141 | # Strip chunk len |
142 | $self->{chunk_buffer} =~ s/^([\da-fA-F]+).*\x0D\x0A//; |
143 | |
144 | # End of data, there may be trailing headers |
145 | if ( my ($headers) = $self->{chunk_buffer} =~ m/(.*)\x0D\x0A/s ) { |
146 | if ( my $message = HTTP::Message->parse( $headers ) ) { |
147 | $self->{trailing_headers} = $message->headers; |
148 | } |
149 | } |
150 | |
151 | $self->{chunk_buffer} = ''; |
152 | |
153 | # Set content_length equal to the amount of data we read, |
154 | # so the spin methods can finish up. |
155 | $self->{content_length} = $self->{length}; |
156 | } |
157 | else { |
158 | # Make sure we have the whole chunk in the buffer (+CRLF) |
159 | if ( length( $self->{chunk_buffer} ) >= $chunk_len ) { |
160 | # Strip chunk len |
161 | $self->{chunk_buffer} =~ s/^([\da-fA-F]+).*\x0D\x0A//; |
162 | |
163 | # Pull chunk data out of chunk buffer into real buffer |
164 | $self->{buffer} .= substr $self->{chunk_buffer}, 0, $chunk_len, ''; |
165 | |
166 | # Strip remaining CRLF |
167 | $self->{chunk_buffer} =~ s/^\x0D\x0A//; |
168 | |
169 | $self->{length} += $chunk_len; |
170 | } |
171 | else { |
172 | # Not enough data for this chunk, wait for more calls to add() |
173 | return; |
174 | } |
175 | } |
176 | |
177 | unless ( $self->{state} eq 'done' ) { |
178 | $self->spin; |
179 | } |
180 | } |
181 | |
182 | return; |
183 | } |
184 | |
304dca13 |
185 | my $cl = $self->content_length; |
7e2df1d9 |
186 | |
58050177 |
187 | if ( defined $_[0] ) { |
7e2df1d9 |
188 | $self->{length} += length( $_[0] ); |
304dca13 |
189 | |
190 | # Don't allow buffer data to exceed content-length |
191 | if ( $self->{length} > $cl ) { |
192 | $_[0] = substr $_[0], 0, $cl - $self->{length}; |
193 | $self->{length} = $cl; |
194 | } |
195 | |
196 | $self->{buffer} .= $_[0]; |
58050177 |
197 | } |
aac7ca02 |
198 | |
7e2df1d9 |
199 | unless ( $self->state eq 'done' ) { |
200 | $self->spin; |
201 | } |
202 | |
304dca13 |
203 | return ( $self->length - $cl ); |
32b29b79 |
204 | } |
205 | |
aac7ca02 |
206 | =item body |
207 | |
6153c112 |
208 | accessor for the body. |
209 | |
aac7ca02 |
210 | =cut |
211 | |
32b29b79 |
212 | sub body { |
213 | my $self = shift; |
214 | $self->{body} = shift if @_; |
215 | return $self->{body}; |
216 | } |
217 | |
0a66fd23 |
218 | =item chunked |
aac7ca02 |
219 | |
0a66fd23 |
220 | Returns 1 if the request is chunked. |
6153c112 |
221 | |
aac7ca02 |
222 | =cut |
223 | |
0a66fd23 |
224 | sub chunked { |
225 | return shift->{chunked}; |
58050177 |
226 | } |
227 | |
aac7ca02 |
228 | =item content_length |
229 | |
0a66fd23 |
230 | Returns the content-length for the body data if known. |
231 | Returns -1 if the request is chunked. |
6153c112 |
232 | |
aac7ca02 |
233 | =cut |
234 | |
32b29b79 |
235 | sub content_length { |
236 | return shift->{content_length}; |
237 | } |
238 | |
aac7ca02 |
239 | =item content_type |
240 | |
0a66fd23 |
241 | Returns the content-type of the body data. |
6153c112 |
242 | |
aac7ca02 |
243 | =cut |
244 | |
32b29b79 |
245 | sub content_type { |
246 | return shift->{content_type}; |
247 | } |
248 | |
aac7ca02 |
249 | =item init |
250 | |
6153c112 |
251 | return self. |
252 | |
aac7ca02 |
253 | =cut |
254 | |
58050177 |
255 | sub init { |
256 | return $_[0]; |
257 | } |
258 | |
aac7ca02 |
259 | =item length |
260 | |
0a66fd23 |
261 | Returns the total length of data we expect to read if known. |
262 | In the case of a chunked request, returns the amount of data |
263 | read so far. |
6153c112 |
264 | |
aac7ca02 |
265 | =cut |
266 | |
58050177 |
267 | sub length { |
268 | return shift->{length}; |
269 | } |
270 | |
0a66fd23 |
271 | =item trailing_headers |
272 | |
273 | If a chunked request body had trailing headers, trailing_headers will |
274 | return an HTTP::Headers object populated with those headers. |
275 | |
276 | =cut |
277 | |
278 | sub trailing_headers { |
279 | return shift->{trailing_headers}; |
280 | } |
281 | |
aac7ca02 |
282 | =item spin |
283 | |
6153c112 |
284 | Abstract method to spin the io handle. |
285 | |
aac7ca02 |
286 | =cut |
287 | |
58050177 |
288 | sub spin { |
289 | Carp::croak('Define abstract method spin() in implementation'); |
290 | } |
291 | |
aac7ca02 |
292 | =item state |
293 | |
0a66fd23 |
294 | Returns the current state of the parser. |
6153c112 |
295 | |
aac7ca02 |
296 | =cut |
297 | |
7e2df1d9 |
298 | sub state { |
299 | my $self = shift; |
300 | $self->{state} = shift if @_; |
aac7ca02 |
301 | return $self->{state}; |
302 | } |
303 | |
aac7ca02 |
304 | =item param |
305 | |
0a66fd23 |
306 | Get/set body parameters. |
6153c112 |
307 | |
aac7ca02 |
308 | =cut |
309 | |
32b29b79 |
310 | sub param { |
311 | my $self = shift; |
312 | |
313 | if ( @_ == 2 ) { |
314 | |
315 | my ( $name, $value ) = @_; |
316 | |
317 | if ( exists $self->{param}->{$name} ) { |
318 | for ( $self->{param}->{$name} ) { |
319 | $_ = [$_] unless ref($_) eq "ARRAY"; |
320 | push( @$_, $value ); |
321 | } |
322 | } |
323 | else { |
324 | $self->{param}->{$name} = $value; |
325 | } |
326 | } |
327 | |
328 | return $self->{param}; |
329 | } |
330 | |
aac7ca02 |
331 | =item upload |
332 | |
0a66fd23 |
333 | Get/set file uploads. |
334 | |
aac7ca02 |
335 | =cut |
336 | |
32b29b79 |
337 | sub upload { |
338 | my $self = shift; |
339 | |
340 | if ( @_ == 2 ) { |
341 | |
342 | my ( $name, $upload ) = @_; |
343 | |
344 | if ( exists $self->{upload}->{$name} ) { |
345 | for ( $self->{upload}->{$name} ) { |
346 | $_ = [$_] unless ref($_) eq "ARRAY"; |
347 | push( @$_, $upload ); |
348 | } |
349 | } |
350 | else { |
351 | $self->{upload}->{$name} = $upload; |
352 | } |
353 | } |
354 | |
355 | return $self->{upload}; |
356 | } |
357 | |
aac7ca02 |
358 | =back |
359 | |
360 | =head1 AUTHOR |
361 | |
362 | Christian Hansen, C<ch@ngmedia.com> |
17c3e9b3 |
363 | |
364 | Sebastian Riedel, C<sri@cpan.org> |
aac7ca02 |
365 | |
0a66fd23 |
366 | Andy Grundman, C<andy@hybridized.org> |
367 | |
aac7ca02 |
368 | =head1 LICENSE |
369 | |
17c3e9b3 |
370 | This library is free software. You can redistribute it and/or modify |
aac7ca02 |
371 | it under the same terms as perl itself. |
372 | |
373 | =cut |
374 | |
32b29b79 |
375 | 1; |