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- package LWP::Authen::Basic;
- use strict;
-
- require MIME::Base64;
-
- sub auth_header {
- my($class, $user, $pass) = @_;
- return "Basic " . MIME::Base64::encode("$user:$pass", "");
- }
-
- sub authenticate
- {
- my($class, $ua, $proxy, $auth_param, $response,
- $request, $arg, $size) = @_;
-
- my $realm = $auth_param->{realm} || "";
- my $url = $proxy ? $request->{proxy} : $request->uri_canonical;
- return $response unless $url;
- my $host_port = $url->host_port;
- my $auth_header = $proxy ? "Proxy-Authorization" : "Authorization";
-
- my @m = $proxy ? (m_proxy => $url) : (m_host_port => $host_port);
- push(@m, realm => $realm);
-
- my $h = $ua->get_my_handler("request_prepare", @m, sub {
- $_[0]{callback} = sub {
- my($req, $ua, $h) = @_;
- my($user, $pass) = $ua->credentials($host_port, $h->{realm});
- if (defined $user) {
- my $auth_value = $class->auth_header($user, $pass, $req, $ua, $h);
- $req->header($auth_header => $auth_value);
- }
- };
- });
- $h->{auth_param} = $auth_param;
-
- if (!$proxy && !$request->header($auth_header) && $ua->credentials($host_port, $realm)) {
- # we can make sure this handler applies and retry
- add_path($h, $url->path);
- return $ua->request($request->clone, $arg, $size, $response);
- }
-
- my($user, $pass) = $ua->get_basic_credentials($realm, $url, $proxy);
- unless (defined $user and defined $pass) {
- $ua->set_my_handler("request_prepare", undef, @m); # delete handler
- return $response;
- }
-
- # check that the password has changed
- my ($olduser, $oldpass) = $ua->credentials($host_port, $realm);
- return $response if (defined $olduser and defined $oldpass and
- $user eq $olduser and $pass eq $oldpass);
-
- $ua->credentials($host_port, $realm, $user, $pass);
- add_path($h, $url->path) unless $proxy;
- return $ua->request($request->clone, $arg, $size, $response);
- }
-
- sub add_path {
- my($h, $path) = @_;
- $path =~ s,[^/]+\z,,;
- push(@{$h->{m_path_prefix}}, $path);
- }
-
- 1;
-