1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
|
# This Source Code Form is subject to the terms of the Mozilla Public
# License, v. 2.0. If a copy of the MPL was not distributed with this
# file, You can obtain one at http://mozilla.org/MPL/2.0/.
#
# This Source Code Form is "Incompatible With Secondary Licenses", as
# defined by the Mozilla Public License, v. 2.0.
package Bugzilla::Auth::Verify::LDAP;
use 5.10.1;
use strict;
use warnings;
use base qw(Bugzilla::Auth::Verify);
use fields qw(
ldap
);
use Bugzilla::Constants;
use Bugzilla::Error;
use Bugzilla::User;
use Bugzilla::Util;
use Net::LDAP;
use Net::LDAP::Util qw(escape_filter_value);
use constant admin_can_create_account => 0;
use constant user_can_create_account => 0;
sub check_credentials {
my ($self, $params) = @_;
my $dbh = Bugzilla->dbh;
# We need to bind anonymously to the LDAP server. This is
# because we need to get the Distinguished Name of the user trying
# to log in. Some servers (such as iPlanet) allow you to have unique
# uids spread out over a subtree of an area (such as "People"), so
# just appending the Base DN to the uid isn't sufficient to get the
# user's DN. For servers which don't work this way, there will still
# be no harm done.
$self->_bind_ldap_for_search();
# Now, we verify that the user exists, and get a LDAP Distinguished
# Name for the user.
my $username = $params->{username};
my $dn_result = $self->ldap->search(_bz_search_params($username),
attrs => ['dn']);
return { failure => AUTH_ERROR, error => "ldap_search_error",
details => {errstr => $dn_result->error, username => $username}
} if $dn_result->code;
return { failure => AUTH_NO_SUCH_USER } if !$dn_result->count;
my $dn = $dn_result->shift_entry->dn;
# Check the password.
my $pw_result = $self->ldap->bind($dn, password => $params->{password});
return { failure => AUTH_LOGINFAILED } if $pw_result->code;
# And now we fill in the user's details.
# First try the search as the (already bound) user in question.
my $user_entry;
my $error_string;
my $detail_result = $self->ldap->search(_bz_search_params($username));
if ($detail_result->code) {
# Stash away the original error, just in case
$error_string = $detail_result->error;
} else {
$user_entry = $detail_result->shift_entry;
}
# If that failed (either because the search failed, or returned no
# results) then try re-binding as the initial search user, but only
# if the LDAPbinddn parameter is set.
if (!$user_entry && Bugzilla->params->{"LDAPbinddn"}) {
$self->_bind_ldap_for_search();
$detail_result = $self->ldap->search(_bz_search_params($username));
if (!$detail_result->code) {
$user_entry = $detail_result->shift_entry;
}
}
# If we *still* don't have anything in $user_entry then give up.
return { failure => AUTH_ERROR, error => "ldap_search_error",
details => {errstr => $error_string, username => $username}
} if !$user_entry;
my $mail_attr = Bugzilla->params->{"LDAPmailattribute"};
if ($mail_attr) {
if (!$user_entry->exists($mail_attr)) {
return { failure => AUTH_ERROR,
error => "ldap_cannot_retreive_attr",
details => {attr => $mail_attr} };
}
my @emails = $user_entry->get_value($mail_attr);
# Default to the first email address returned.
$params->{bz_username} = $emails[0];
if (@emails > 1) {
# Cycle through the adresses and check if they're Bugzilla logins.
# Use the first one that returns a valid id.
foreach my $email (@emails) {
if ( login_to_id($email) ) {
$params->{bz_username} = $email;
last;
}
}
}
} else {
$params->{bz_username} = $username;
}
$params->{realname} ||= $user_entry->get_value("displayName");
$params->{realname} ||= $user_entry->get_value("cn");
$params->{extern_id} = $username;
return $params;
}
sub _bz_search_params {
my ($username) = @_;
$username = escape_filter_value($username);
return (base => Bugzilla->params->{"LDAPBaseDN"},
scope => "sub",
filter => '(&(' . Bugzilla->params->{"LDAPuidattribute"}
. "=$username)"
. Bugzilla->params->{"LDAPfilter"} . ')');
}
sub _bind_ldap_for_search {
my ($self) = @_;
my $bind_result;
if (Bugzilla->params->{"LDAPbinddn"}) {
my ($LDAPbinddn,$LDAPbindpass) =
split(":",Bugzilla->params->{"LDAPbinddn"});
$bind_result =
$self->ldap->bind($LDAPbinddn, password => $LDAPbindpass);
}
else {
$bind_result = $self->ldap->bind();
}
ThrowCodeError("ldap_bind_failed", {errstr => $bind_result->error})
if $bind_result->code;
}
# We can't just do this in new(), because we're not allowed to throw any
# error from anywhere under Bugzilla::Auth::new -- otherwise we
# could create a situation where the admin couldn't get to editparams
# to fix their mistake. (Because Bugzilla->login always calls
# Bugzilla::Auth->new, and almost every page calls Bugzilla->login.)
sub ldap {
my ($self) = @_;
return $self->{ldap} if $self->{ldap};
my @servers = split(/[\s,]+/, Bugzilla->params->{"LDAPserver"});
ThrowCodeError("ldap_server_not_defined") unless @servers;
foreach (@servers) {
$self->{ldap} = new Net::LDAP(trim($_));
last if $self->{ldap};
}
ThrowCodeError("ldap_connect_failed", { server => join(", ", @servers) })
unless $self->{ldap};
# try to start TLS if needed
if (Bugzilla->params->{"LDAPstarttls"}) {
my $mesg = $self->{ldap}->start_tls();
ThrowCodeError("ldap_start_tls_failed", { error => $mesg->error() })
if $mesg->code();
}
return $self->{ldap};
}
1;
|
