forked from GNUsocial/gnu-social
109 lines
3.3 KiB
PHP
109 lines
3.3 KiB
PHP
<?php
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/*
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* StatusNet - the distributed open-source microblogging tool
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* Copyright (C) 2008, 2009, StatusNet, Inc.
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU Affero General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Affero General Public License for more details.
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*
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* You should have received a copy of the GNU Affero General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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if (!defined('STATUSNET') && !defined('LACONICA')) { exit(1); }
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require_once 'Net/LDAP2.php';
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function ldap_get_config(){
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static $config = null;
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if($config == null){
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$config = array();
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$keys = array('host','port','version','starttls','binddn','bindpw','basedn','options','scope');
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foreach($keys as $key){
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$value = common_config('ldap', $key);
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if($value!==false){
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$config[$key]=$value;
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}
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}
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}
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return $config;
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}
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function ldap_get_connection($config = null){
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if($config == null){
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$config = ldap_get_config();
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}
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//cannot use Net_LDAP2::connect() as StatusNet uses
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//PEAR::setErrorHandling(PEAR_ERROR_CALLBACK, 'handleError');
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//PEAR handling can be overridden on instance objects, so we do that.
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$ldap = new Net_LDAP2($config);
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$ldap->setErrorHandling(PEAR_ERROR_RETURN);
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$err=$ldap->bind();
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if (Net_LDAP2::isError($err)) {
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common_log(LOG_WARNING, 'Could not connect to LDAP server: '.$err->getMessage());
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return false;
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}
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return $ldap;
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}
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function ldap_check_password($username, $password){
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$ldap = ldap_get_connection();
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if(!$ldap){
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return false;
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}
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$entry = ldap_get_user($username);
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if(!$entry){
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return false;
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}else{
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$config = ldap_get_config();
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$config['binddn']=$entry->dn();
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$config['bindpw']=$password;
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if(ldap_get_connection($config)){
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return true;
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}else{
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return false;
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}
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}
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}
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/**
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* get an LDAP entry for a user with a given username
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*
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* @param string $username
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* $param array $attributes LDAP attributes to retrieve
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* @return string DN
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*/
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function ldap_get_user($username,$attributes=array()){
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$ldap = ldap_get_connection();
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$filter = Net_LDAP2_Filter::create(common_config('ldap','nickname_attribute'), 'equals', $username);
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$options = array(
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'scope' => 'sub',
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'attributes' => $attributes
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);
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$search = $ldap->search(null,$filter,$options);
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if (PEAR::isError($search)) {
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common_log(LOG_WARNING, 'Error while getting DN for user: '.$search->getMessage());
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return false;
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}
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if($search->count()==0){
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return false;
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}else if($search->count()==1){
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$entry = $search->shiftEntry();
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return $entry;
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}else{
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common_log(LOG_WARNING, 'Found ' . $search->count() . ' ldap user with the username: ' . $username);
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return false;
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}
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}
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