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# Copyright (c) 1998-2004 Graham Barr <gbarr@pobox.com>. All rights reserved.
# This program is free software; you can redistribute it and/or
# modify it under the same terms as Perl itself.
package LWP::Protocol::ldap;
use Carp ();
use HTTP::Status qw(HTTP_OK HTTP_BAD_REQUEST HTTP_INTERNAL_SERVER_ERROR HTTP_NOT_IMPLEMENTED);
use HTTP::Negotiate ();
use HTTP::Response ();
use LWP::MediaTypes ();
require LWP::Protocol;
@ISA = qw(LWP::Protocol);
$VERSION = "1.14";
use strict;
eval {
require Net::LDAP;
};
my $init_failed = $@ ? $@ : undef;
sub request {
my($self, $request, $proxy, $arg, $size, $timeout) = @_;
$size = 4096 unless $size;
LWP::Debug::trace('()') if defined &LWP::Debug::trace;
# check proxy
if (defined $proxy)
{
return new HTTP::Response HTTP_BAD_REQUEST,
'You can not proxy through the ldap';
}
my $url = $request->url;
my $scheme = $url->scheme;
if ($scheme !~ /^ldap[si]?$/) {
return new HTTP::Response HTTP_INTERNAL_SERVER_ERROR,
"LWP::Protocol::ldap::request called for '$scheme'";
}
# check method
my $method = $request->method;
unless ($method =~ /^(?:GET|HEAD)$/) {
return new HTTP::Response HTTP_NOT_IMPLEMENTED,
'Library does not allow method ' .
"$method for '$scheme:' URLs";
}
if ($init_failed) {
return new HTTP::Response HTTP_INTERNAL_SERVER_ERROR,
$init_failed;
}
my $userinfo = $url->can('userinfo') ? $url->userinfo : '';
my ($user, $password) = defined($userinfo) ? split(":", $userinfo, 2) : ();
# Create an initial response object
my $response = new HTTP::Response HTTP_OK, "Document follows";
$response->request($request);
my $ldap = new Net::LDAP($url->as_string);
if ($user) {
my $mesg = $ldap->bind($user, password => $password);
if ($mesg->code) {
my $res = new HTTP::Response HTTP_BAD_REQUEST, "LDAP return code " . $mesg->code;
$res->content_type("text/plain");
$res->content($mesg->error);
return $res;
}
}
my $dn = $url->dn;
my @attrs = $url->attributes;
my $scope = $url->scope || "base";
my $filter = $url->filter;
my @opts = (scope => $scope);
my %extn = $url->extensions;
my $format = lc($extn{'x-format'} || 'html');
if (my $accept = $request->header('Accept')) {
$format = 'ldif' if $accept =~ m!\btext/(x-)?ldif\b!;
}
push @opts, "base" => $dn if $dn;
push @opts, "filter" => $filter if $filter;
push @opts, "attrs" => \@attrs if @attrs;
my $mesg = $ldap->search(@opts);
if ($mesg->code) {
my $res = new HTTP::Response HTTP_BAD_REQUEST,
"LDAP return code " . $ldap->code;
$res->content_type("text/plain");
$res->content($ldap->error);
return $res;
}
elsif ($format eq 'ldif') {
require Net::LDAP::LDIF;
open(my $fh, ">", \my $content);
my $ldif = Net::LDAP::LDIF->new($fh,"w", version => 1);
while(my $entry = $mesg->shift_entry) {
$ldif->write_entry($entry);
}
$ldif->done;
close($fh);
$response->header('Content-Type' => 'text/ldif');
$response->header('Content-Length', length($content));
$response = $self->collect_once($arg, $response, $content)
if ($method ne 'HEAD');
}
else {
my $content = "<head><title>Directory Search Results</title></head>\n<body>";
my $entry;
my $index;
for($index = 0 ; $entry = $mesg->entry($index) ; $index++ ) {
my $attr;
$content .= $index ? qq{<tr><th colspan="2"><hr>&nbsp</tr>\n} : "<table>";
$content .= qq{<tr><th colspan="2">} . $entry->dn . "</th></tr>\n";
foreach $attr ($entry->attributes) {
my $vals = $entry->get_value($attr, asref => 1);
my $val;
$content .= q{<tr><td align="right" valign="top"};
$content .= q{ rowspan="} . scalar(@$vals) . q{"}
if (@$vals > 1);
$content .= ">" . $attr . "&nbsp</td>\n";
my $j = 0;
foreach $val (@$vals) {
$val = qq!<a href="$val">$val</a>! if $val =~ /^https?:/;
$val = qq!<a href="mailto:$val">$val</a>! if $val =~ /^[-\w]+\@[-.\w]+$/;
$content .= "<tr>" if $j++;
$content .= "<td>" . $val . "</td></tr>\n";
}
}
}
$content .= "</table>" if $index;
$content .= "<hr>";
$content .= $index ? sprintf("%s Match%s found",$index, $index>1 ? "es" : "")
: "<b>No Matches found</b>";
$content .= "</body>\n";
$response->header('Content-Type' => 'text/html');
$response->header('Content-Length', length($content));
$response = $self->collect_once($arg, $response, $content)
if ($method ne 'HEAD');
}
$ldap->unbind;
$response;
}
1;
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