1 package Web::Dispatch::ParamParser;
4 use warnings FATAL => 'all';
6 use Encode 'decode_utf8';
8 sub UNPACKED_QUERY () { __PACKAGE__.'.unpacked_query' }
9 sub UNPACKED_BODY () { __PACKAGE__.'.unpacked_body' }
10 sub UNPACKED_BODY_OBJECT () { __PACKAGE__.'.unpacked_body_object' }
11 sub UNPACKED_UPLOADS () { __PACKAGE__.'.unpacked_uploads' }
12 sub ORIG_ENV () { 'Web::Dispatch.original_env' }
14 sub get_unpacked_query_from {
15 return ($_[0]->{+ORIG_ENV}||$_[0])->{+UNPACKED_QUERY} ||= do {
16 _unpack_params($_[0]->{QUERY_STRING})
20 sub get_unpacked_body_from {
21 return ($_[0]->{+ORIG_ENV}||$_[0])->{+UNPACKED_BODY} ||= do {
22 my $ct = lc($_[0]->{CONTENT_TYPE}||'');
23 if (!$_[0]->{CONTENT_LENGTH}) {
25 } elsif (index($ct, 'application/x-www-form-urlencoded') >= 0) {
26 $_[0]->{'psgi.input'}->read(my $buf, $_[0]->{CONTENT_LENGTH});
28 } elsif (index($ct, 'multipart/form-data') >= 0) {
29 my $p = get_unpacked_body_object_from($_[0])->param;
30 # forcible arrayification (functional, $p does not belong to us,
31 # do NOT replace this with a side-effect ridden "simpler" version)
33 map +(ref($p->{$_}) eq 'ARRAY'
35 : ($_ => [ $p->{$_} ])
44 sub get_unpacked_body_object_from {
45 # we may have no object at all - so use a single element arrayref for ||=
46 return (($_[0]->{+ORIG_ENV}||$_[0])->{+UNPACKED_BODY_OBJECT} ||= do {
47 if (!$_[0]->{CONTENT_LENGTH}) {
49 } elsif (index(lc($_[0]->{CONTENT_TYPE}||''),'multipart/form-data')==-1) {
52 [ _make_http_body($_[0]) ]
57 sub get_unpacked_uploads_from {
58 $_[0]->{+UNPACKED_UPLOADS} ||= do {
59 require Web::Dispatch::Upload; require HTTP::Headers;
60 my ($final, $reason) = (
61 {}, "field %s exists with value %s but body was not multipart/form-data"
63 if (my $body = get_unpacked_body_object_from($_[0])) {
64 my $u = $body->upload;
65 $reason = "field %s exists with value %s but was not an upload";
66 foreach my $k (keys %$u) {
67 foreach my $v (ref($u->{$k}) eq 'ARRAY' ? @{$u->{$k}} : $u->{$k}) {
68 push(@{$final->{$k}||=[]}, Web::Dispatch::Upload->new(
70 headers => HTTP::Headers->new($v->{headers})
75 my $b = get_unpacked_body_from($_[0]);
76 foreach my $k (keys %$b) {
78 foreach my $v (@{$b->{$k}}) {
80 push(@{$final->{$k}||=[]}, Web::Dispatch::NotAnUpload->new(
82 reason => sprintf($reason, $k, $v)
91 # shamelessly stolen from HTTP::Body::UrlEncoded by Christian Hansen
93 my $DECODE = qr/%([0-9a-fA-F]{2})/;
97 foreach my $num ( 0 .. 255 ) {
98 my $h = sprintf "%02X", $num;
99 $hex_chr{ lc $h } = $hex_chr{ uc $h } = chr $num;
104 (my $params = $_[0]) =~ s/\+/ /g;
106 foreach my $pair (split(/[&;](?:\s+)?/, $params)) {
107 $value = 1 unless (($name, $value) = split(/=/, $pair, 2)) == 2;
109 s/$DECODE/$hex_chr{$1}/gs for ($name, $value);
110 $_ = decode_utf8 $_ for ($name, $value);
112 push(@{$unpack{$name}||=[]}, $value);
119 # shamelessly stolen from Plack::Request by miyagawa
121 sub _make_http_body {
123 # Can't actually do this yet, since Plack::Request deletes the
124 # header structure out of the uploads in its copy of the body.
125 # I suspect I need to supply miyagawa with a failing test.
127 #if (my $plack_body = $_[0]->{'plack.request.http.body'}) {
128 # # Plack already constructed one; probably wasteful to do it again
129 # return $plack_body;
133 my $body = HTTP::Body->new(@{$_[0]}{qw(CONTENT_TYPE CONTENT_LENGTH)});
136 my $input = $_[0]->{'psgi.input'};
137 my $cl = $_[0]->{CONTENT_LENGTH};
139 $input->read(my $chunk, $cl < 8192 ? $cl : 8192);
140 my $read = length $chunk;
144 if ($read == 0 && $spin++ > 2000) {
146 Carp::croak("Bad Content-Length: maybe client disconnect? ($cl bytes remaining)");