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<?php/* This code is part of FusionDirectory (http://www.fusiondirectory.org/) Copyright (C) 2003-2010 Cajus Pollmeier Copyright (C) 2003 Alejandro Escanero Blanco <aescanero@chaosdimension.org> Copyright (C) 1998 Eric Kilfoil <eric@ipass.net> Copyright (C) 2011-2016 FusionDirectory This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with this program; if not, write to the Free Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA.*//*! * \file class_ldap.inc * Source code for Class LDAP *//*! * \brief This class contains all ldap function needed to make * ldap operations easy */class LDAP{ var $hascon = FALSE; var $reconnect = FALSE; var $tls = FALSE; /** * Connection identifier * * @var resource|object|false */ var $cid = FALSE; var $hasres = []; var $sr = []; var $re = []; var $basedn = ""; /* 0 if we are fetching the first entry, otherwise 1 */ var $start = []; /* Any error messages to be returned can be put here */ var $error = ""; var $srp = 0; /* Information read from slapd.oc.conf */ var $objectClasses = []; /* the dn for the bind */ var $binddn = ""; /* the dn's password for the bind */ var $bindpw = ""; var $hostname = ""; var $follow_referral = FALSE; var $referrals = []; /* 0, empty or negative values will disable this check */7172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138139140
var $max_ldap_query_time = 0;
/*!
* \brief Create a LDAP connection
*
* \param string $binddn Bind of the DN
*
* \param string $bindpw Bind
*
* \param string $hostname The hostname
*
* \param boolean $follow_referral FALSE
*
* \param boolean $tls FALSE
*/
function __construct ($binddn, $bindpw, $hostname, $follow_referral = FALSE, $tls = FALSE)
{
global $config;
$this->follow_referral = $follow_referral;
$this->tls = $tls;
$this->binddn = $binddn;
$this->bindpw = $bindpw;
$this->hostname = $hostname;
/* Check if MAX_LDAP_QUERY_TIME is defined */
if (is_object($config) && ($config->get_cfg_value("ldapMaxQueryTime") != "")) {
$str = $config->get_cfg_value("ldapMaxQueryTime");
$this->max_ldap_query_time = (float)($str);
}
$this->connect();
}
/*! \brief Remove bogus resources after unserialize
*/
public function __wakeup ()
{
$this->cid = FALSE;
$this->hascon = FALSE;
}
/*!
* \brief Initialize a LDAP connection
*
* Initializes a LDAP connection.
*
* \param string $server The server we are connecting to
*
* \param string $base The base of our ldap tree
*
* \param string $binddn Default: empty
*
* \param string $pass Default: empty
*
* \return LDAP object
*/
public static function init (string $server, string $base, string $binddn = '', string $pass = ''): LDAP
{
global $config;
$ldap = new LDAP($binddn, $pass, $server,
isset($config->current['LDAPFOLLOWREFERRALS']) && $config->current['LDAPFOLLOWREFERRALS'] == 'TRUE',
isset($config->current['LDAPTLS']) && $config->current['LDAPTLS'] == 'TRUE');
/* Sadly we've no proper return values here. Use the error message instead. */
if (!$ldap->success()) {
throw new FatalError(htmlescape(sprintf(_('FATAL: Error when connecting to LDAP. Server said "%s".'), $ldap->get_error())));
}
/* Preset connection base to $base and return to caller */
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$ldap->cd($base);
return $ldap;
}
/*!
* \brief Get the search ressource
*
* \return increase srp
*/
function getSearchResource ()
{
$this->sr[$this->srp] = NULL;
$this->start[$this->srp] = 0;
$this->hasres[$this->srp] = FALSE;
return $this->srp++;
}
/*!
* \brief Function to fix problematic characters in DN's that are used for search requests. I.e. member=....
*
* \param string $dn The DN
*/
static function prepare4filter ($dn)
{
trigger_error('deprecated, use ldap_escape_f instead');
return ldap_escape_f($dn);
}
/*!
* \brief Error text that must be returned for invalid user or password
*
* This is useful to make sure the same error text is shown whether a user exists or not, when the password is not correct.
*/
static function invalidCredentialsError (): string
{
return _(ldap_err2str(49));
}
/*!
* \brief Create a connection to LDAP server
*
* The string $error containts result of the connection
*/
function connect ()
{
$this->hascon = FALSE;
$this->reconnect = FALSE;
if ($this->cid = @ldap_connect($this->hostname)) {
@ldap_set_option($this->cid, LDAP_OPT_PROTOCOL_VERSION, 3);
if ($this->follow_referral) {
@ldap_set_option($this->cid, LDAP_OPT_REFERRALS, 1);
@ldap_set_rebind_proc($this->cid, [&$this, 'rebind']);
}
if ($this->tls) {
@ldap_start_tls($this->cid);
}
$this->error = 'No Error';
$serverctrls = [];
if (class_available('ppolicyAccount')) {
$serverctrls = [['oid' => LDAP_CONTROL_PASSWORDPOLICYREQUEST]];
}
$result = @ldap_bind_ext($this->cid, $this->binddn, $this->bindpw, $serverctrls);
if (@ldap_parse_result($this->cid, $result, $errcode, $matcheddn, $errmsg, $referrals, $ctrls)) {
if (isset($ctrls[LDAP_CONTROL_PASSWORDPOLICYRESPONSE]['value']['error'])) {
$this->hascon = FALSE;
$this->error = match ($ctrls[LDAP_CONTROL_PASSWORDPOLICYRESPONSE]['value']['error']) {
/* passwordExpired - password has expired and must be reset */
0 => _('It seems your user password has expired. Please use <a href="recovery.php">password recovery</a> to change it.'),
/* accountLocked */