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package URI::_query;
use strict;
use warnings;
use URI ();
use URI::Escape qw(uri_unescape);
our $VERSION = '5.19';
sub query
{
my $self = shift;
$$self =~ m,^([^?\#]*)(?:\?([^\#]*))?(.*)$,s or die;
if (@_) {
my $q = shift;
$$self = $1;
if (defined $q) {
$q =~ s/([^$URI::uric])/ URI::Escape::escape_char($1)/ego;
utf8::downgrade($q);
$$self .= "?$q";
}
$$self .= $3;
}
$2;
}
# Handle ...?foo=bar&bar=foo type of query
sub query_form {
my $self = shift;
my $old = $self->query;
if (@_) {
# Try to set query string
my $delim;
my $r = $_[0];
if (ref($r) eq "ARRAY") {
$delim = $_[1];
@_ = @$r;
}
elsif (ref($r) eq "HASH") {
$delim = $_[1];
@_ = map { $_ => $r->{$_} } sort keys %$r;
}
$delim = pop if @_ % 2;
my @query;
while (my($key,$vals) = splice(@_, 0, 2)) {
$key = '' unless defined $key;
$key =~ s/([;\/?:@&=+,\$\[\]%])/ URI::Escape::escape_char($1)/eg;
$key =~ s/ /+/g;
$vals = [ref($vals) eq "ARRAY" ? @$vals : $vals];
for my $val (@$vals) {
if (defined $val) {
$val =~ s/([;\/?:@&=+,\$\[\]%])/ URI::Escape::escape_char($1)/eg;
$val =~ s/ /+/g;
push(@query, "$key=$val");
}
else {
push(@query, $key);
}
}
}
if (@query) {
unless ($delim) {
$delim = $1 if $old && $old =~ /([&;])/;
$delim ||= $URI::DEFAULT_QUERY_FORM_DELIMITER || "&";
}
$self->query(join($delim, @query));
}
else {
$self->query(undef);
}
}
return if !defined($old) || !length($old) || !defined(wantarray);
return unless $old =~ /=/; # not a form
map { defined ? do { s/\+/ /g; uri_unescape($_) } : undef }
map { /=/ ? split(/=/, $_, 2) : ($_ => undef)} split(/[&;]/, $old);
}
# Handle ...?dog+bones type of query
sub query_keywords
{
my $self = shift;
my $old = $self->query;
if (@_) {
# Try to set query string
my @copy = @_;
@copy = @{$copy[0]} if @copy == 1 && ref($copy[0]) eq "ARRAY";
for (@copy) { s/([;\/?:@&=+,\$\[\]%])/ URI::Escape::escape_char($1)/eg; }
$self->query(@copy ? join('+', @copy) : undef);
}
return if !defined($old) || !defined(wantarray);
return if $old =~ /=/; # not keywords, but a form
map { uri_unescape($_) } split(/\+/, $old, -1);
}
# Some URI::URL compatibility stuff
sub equery { goto &query }
sub query_param {
my $self = shift;
my @old = $self->query_form;
if (@_ == 0) {
# get keys
my (%seen, $i);
return grep !($i++ % 2 || $seen{$_}++), @old;
}
my $key = shift;
my @i = grep $_ % 2 == 0 && $old[$_] eq $key, 0 .. $#old;
if (@_) {
my @new = @old;
my @new_i = @i;
my @vals = map { ref($_) eq 'ARRAY' ? @$_ : $_ } @_;
while (@new_i > @vals) {
splice @new, pop @new_i, 2;
}
if (@vals > @new_i) {
my $i = @new_i ? $new_i[-1] + 2 : @new;
my @splice = splice @vals, @new_i, @vals - @new_i;
splice @new, $i, 0, map { $key => $_ } @splice;
}
if (@vals) {
#print "SET $new_i[0]\n";
@new[ map $_ + 1, @new_i ] = @vals;
}
$self->query_form(\@new);
}
return wantarray ? @old[map $_+1, @i] : @i ? $old[$i[0]+1] : undef;
}
sub query_param_append {
my $self = shift;
my $key = shift;
my @vals = map { ref $_ eq 'ARRAY' ? @$_ : $_ } @_;
$self->query_form($self->query_form, $key => \@vals); # XXX
return;
}
sub query_param_delete {
my $self = shift;
my $key = shift;
my @old = $self->query_form;
my @vals;
for (my $i = @old - 2; $i >= 0; $i -= 2) {
next if $old[$i] ne $key;
push(@vals, (splice(@old, $i, 2))[1]);
}
$self->query_form(\@old) if @vals;
return wantarray ? reverse @vals : $vals[-1];
}
sub query_form_hash {
my $self = shift;
my @old = $self->query_form;
if (@_) {
$self->query_form(@_ == 1 ? %{shift(@_)} : @_);
}
my %hash;
while (my($k, $v) = splice(@old, 0, 2)) {
if (exists $hash{$k}) {
for ($hash{$k}) {
$_ = [$_] unless ref($_) eq "ARRAY";
push(@$_, $v);
}
}
else {
$hash{$k} = $v;
}
}
return \%hash;
}
1;
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