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<?php |
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/** |
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* Copyright (c) 2018 Justin Kuenzel (jukusoft.com) |
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* |
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* Licensed under the Apache License, Version 2.0 (the "License"); |
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* you may not use this file except in compliance with the License. |
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* You may obtain a copy of the License at |
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* |
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* http://www.apache.org/licenses/LICENSE-2.0 |
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* |
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* Unless required by applicable law or agreed to in writing, software |
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* distributed under the License is distributed on an "AS IS" BASIS, |
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
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* See the License for the specific language governing permissions and |
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* limitations under the License. |
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*/ |
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/** |
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* Project: JuKuCMS |
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* License: Apache 2.0 license |
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* User: Justin |
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* Date: 24.04.2018 |
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* Time: 23:00 |
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*/ |
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class LDAPClient { |
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//host and port |
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protected $host = ""; |
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protected $port = 389; |
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//flag, if uri is used instead of host |
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protected $uri_used = false; |
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protected $uri = ""; |
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protected $conn = null; |
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protected $res = null; |
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protected $dn = ""; |
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protected $ldap_config = array(); |
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//flag, if connection is readonly |
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protected $readonly = false; |
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public function __construct (string $host = "", int $port = 0, bool $ssl = false) { |
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$ldap_config = array( |
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'enabled' => true, |
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'ssl' => $ssl |
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); |
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if (empty($host)) { |
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//load local config |
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if (!file_exists(CONFIG_PATH . "ldap.php")) { |
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throw new IllegalStateException("No ldap configuration file config/ldap.php exists!"); |
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} |
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//override $ldap_config |
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require(CONFIG_PATH . "ldap.php"); |
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//check, if ldap is enabled |
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if ($ldap_config['enabled'] == false) { |
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throw new IllegalStateException("LDAP is disabled."); |
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} |
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$this->host = $ldap_config['host']; |
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$this->port = intval($ldap_config['port']); |
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$this->readonly = boolval($ldap_config['readonly']); |
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} else { |
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$this->host = $host; |
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$this->port = $port; |
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} |
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//check, if SSL is enabled |
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if ($ldap_config['ssl'] == true) { |
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//use OpenLDAP 2.x.x URI instead of host |
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$this->uri = "ldaps://" . $this->host . ":" . $this->port; |
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//set flag, that uri is used |
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$this->uri_used = true; |
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} |
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//check, if host / uri is valide (this statement doesnt connect to server!) - see also http://php.net/manual/de/function.ldap-connect.php |
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if ($this->uri_used) { |
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$this->conn = ldap_connect($this->uri); |
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} else { |
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$this->conn = ldap_connect($this->host, $this->port); |
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} |
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if ($this->conn === FALSE) { |
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throw new IllegalStateException("LDAP connection parameters (host or port) are invalide."); |
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} |
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$this->dn = $ldap_config['dn']; |
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//set ldap params |
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if (isset($ldap_config['params'])) { |
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foreach ($ldap_config['params'] as $key=>$value) { |
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// configure ldap params |
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ldap_set_option($this->conn,$key, $value); |
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} |
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} |
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$this->ldap_config = $ldap_config; |
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} |
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public function bind (string $username = null, string $password = null) : bool { |
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if (is_null($username) && isset($this->ldap_config['user'])) { |
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$username = $this->ldap_config['user']; |
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$password = $this->ldap_config['password']; |
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} |
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$ldap_usr_dom = ""; |
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if (isset($this->ldap_config['ldap_usr_dom'])) { |
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$ldap_usr_dom = $this->ldap_config['ldap_usr_dom']; |
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} |
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if ($this->conn === FALSE) { |
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throw new IllegalStateException("ldap connection check failed."); |
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} |
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//http://www.selfadsi.de/ads-attributes/user-sAMAccountName.htm |
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//connect and bind to ldap server |
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if (!is_null($username)) { |
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//with authentification |
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$this->res = @ldap_bind($this->conn, $username . $ldap_usr_dom, $password); |
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} else { |
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//anonymous binding |
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$this->res = @ldap_bind($this->conn); |
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} |
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return $this->res !== FALSE; |
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} |
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public function listGroupsOfUser (string $user) : array { |
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// check presence in groups |
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$filter = "(sAMAccountName=" . $user . ")"; |
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$attr = array("memberof"); |
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//https://samjlevy.com/php-ldap-login/ |
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$result = ldap_search($this->conn, $this->dn, $filter, $attr) or exit("Unable to search LDAP server"); |
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/* |
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*return_value["count"] = number of entries in the result |
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* return_value[0] : refers to the details of first entry |
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* return_value[i]["dn"] = DN of the ith entry in the result |
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* return_value[i]["count"] = number of attributes in ith entry |
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* return_value[i][j] = NAME of the jth attribute in the ith entry in the result |
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* return_value[i]["attribute"]["count"] = number of values for |
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* attribute in ith entry |
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* return_value[i]["attribute"][j] = jth value of attribute in ith entry |
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*/ |
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$entries = ldap_get_entries($this->conn, $result); |
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/*$array = array(); |
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$count = intval($entries['count']); |
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for ($i = 0; $i < $count; $i++) { |
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$entry = $entries[$i]; |
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$array[] = array( |
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'dn' => $entry['dn'], |
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'count' => $entry['count'], |
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'attributes' => $entry, |
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); |
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}*/ |
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$groups = array(); |
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foreach($entries[0]['memberof'] as $grps) { |
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$groups[] = $grps; |
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} |
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return $groups; |
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} |
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public function unbind () { |
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//disconnect from ldap server |
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ldap_unbind($this->conn); |
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} |
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public function getConnection () { |
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return $this->conn; |
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} |
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} |
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?> |
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JuKu /
JuKuCMS
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When comparing two booleans, it is generally considered safer to use the strict comparison operator.