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- package HTTP::Headers::Auth;
-
- use strict;
- use vars qw($VERSION);
- $VERSION = sprintf("%d.%02d", q$Revision: 1.2 $ =~ /(\d+)\.(\d+)/);
-
- require 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($_->[1])) {
- # this is a new auth scheme
- push(@ret, lc(shift @$_) => {});
- shift @$_;
- }
- if (@ret) {
- # this a new parameter pair for the last auth scheme
- while (@$_) {
- my $k = lc(shift @$_);
- 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;
-