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package HTTP::Headers::Auth;
use strict;
use vars qw($VERSION);
$VERSION = "6.00";
use HTTP::Headers;
package HTTP::Headers;
BEGIN {
# we provide a new (and better) implementations below
undef(&www_authenticate);
undef(&proxy_authenticate);
}
require HTTP::Headers::Util;
sub _parse_authenticate
{
my @ret;
for (HTTP::Headers::Util::split_header_words(@_)) {
if (!defined($_->[1])) {
# this is a new auth scheme
push(@ret, shift(@$_) => {});
shift @$_;
}
if (@ret) {
# this a new parameter pair for the last auth scheme
while (@$_) {
my $k = shift @$_;
my $v = shift @$_;
$ret[-1]{$k} = $v;
}
}
else {
# something wrong, parameter pair without any scheme seen
# IGNORE
}
}
@ret;
}
sub _authenticate
{
my $self = shift;
my $header = shift;
my @old = $self->_header($header);
if (@_) {
$self->remove_header($header);
my @new = @_;
while (@new) {
my $a_scheme = shift(@new);
if ($a_scheme =~ /\s/) {
# assume complete valid value, pass it through
$self->push_header($header, $a_scheme);
}
else {
my @param;
if (@new) {
my $p = $new[0];
if (ref($p) eq "ARRAY") {
@param = @$p;
shift(@new);
}
elsif (ref($p) eq "HASH") {
@param = %$p;
shift(@new);
}
}
my $val = ucfirst(lc($a_scheme));
if (@param) {
my $sep = " ";
while (@param) {
my $k = shift @param;
my $v = shift @param;
if ($v =~ /[^0-9a-zA-Z]/ || lc($k) eq "realm") {
# must quote the value
$v =~ s,([\\\"]),\\$1,g;
$v = qq("$v");
}
$val .= "$sep$k=$v";
$sep = ", ";
}
}
$self->push_header($header, $val);
}
}
}
return unless defined wantarray;
wantarray ? _parse_authenticate(@old) : join(", ", @old);
}
sub www_authenticate { shift->_authenticate("WWW-Authenticate", @_) }
sub proxy_authenticate { shift->_authenticate("Proxy-Authenticate", @_) }
1;