gnu-social/plugins/LdapAuthentication/LdapAuthenticationPlugin.php

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<?php
/**
* StatusNet, the distributed open-source microblogging tool
*
* Plugin to enable LDAP Authentication
*
* PHP version 5
*
* LICENCE: This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License as published by
* the Free Software Foundation, either version 3 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 Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*
* @category Plugin
* @package StatusNet
* @author Craig Andrews <candrews@integralblue.com>
* @copyright 2009 Free Software Foundation, Inc http://www.fsf.org
* @license http://www.fsf.org/licensing/licenses/agpl-3.0.html GNU Affero General Public License version 3.0
* @link http://status.net/
*/
if (!defined('STATUSNET') && !defined('LACONICA')) {
exit(1);
}
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class LdapAuthenticationPlugin extends AuthenticationPlugin
{
function onInitializePlugin(){
parent::onInitializePlugin();
if(!isset($this->attributes['nickname'])){
// TRANS: Exception thrown when initialising the LDAP Auth plugin fails because of an incorrect configuration.
throw new Exception(_m('You must specify a nickname attribute.'));
}
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if($this->password_changeable && (! isset($this->attributes['password']) || !isset($this->password_encoding))){
// TRANS: Exception thrown when initialising the LDAP Auth plugin fails because of an incorrect configuration.
throw new Exception(_m('If password_changeable is set, the password attribute and password_encoding must also be specified.'));
}
$this->ldapCommon = new LdapCommon(get_object_vars($this));
}
function onAutoload($cls)
{
switch ($cls)
{
case 'LdapCommon':
require_once(INSTALLDIR.'/plugins/LdapCommon/LdapCommon.php');
return false;
}
return parent::onAutoload($cls);
}
function onEndShowPageNotice($action)
{
$name = $action->trimmed('action');
$instr = false;
switch ($name)
{
case 'register':
if($this->autoregistration) {
// TRANS: Instructions for LDAP authentication.
$instr = _m('Do you have an LDAP account? Use your standard username and password.');
}
break;
case 'login':
// TRANS: Instructions for LDAP authentication.
$instr = _m('Do you have an LDAP account? Use your standard username and password.');
break;
default:
return true;
}
if($instr) {
$output = common_markup_to_html($instr);
$action->raw($output);
}
return true;
}
//---interface implementation---//
function checkPassword($username, $password)
{
return $this->ldapCommon->checkPassword($username,$password);
}
function autoRegister($username, $nickname)
{
if(is_null($nickname)){
$nickname = $username;
}
$entry = $this->ldapCommon->get_user($username,$this->attributes);
if($entry){
$registration_data = array();
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foreach($this->attributes as $sn_attribute=>$ldap_attribute){
//ldap won't let us read a user's password,
//and we're going to set the password to a random string later anyways,
//so don't bother trying to read it.
if($sn_attribute != 'password'){
$registration_data[$sn_attribute]=$entry->getValue($ldap_attribute,'single');
}
}
if(isset($registration_data['email']) && !empty($registration_data['email'])){
$registration_data['email_confirmed']=true;
}
$registration_data['nickname'] = $nickname;
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//set the database saved password to a random string.
$registration_data['password']=common_random_hexstr(16);
return User::register($registration_data);
}else{
//user isn't in ldap, so we cannot register him
return false;
}
}
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function changePassword($username,$oldpassword,$newpassword)
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{
return $this->ldapCommon->changePassword($username,$oldpassword,$newpassword);
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}
function suggestNicknameForUsername($username)
{
$entry = $this->ldapCommon->get_user($username, $this->attributes);
if(!$entry){
//this really shouldn't happen
$nickname = $username;
}else{
$nickname = $entry->getValue($this->attributes['nickname'],'single');
if(!$nickname){
$nickname = $username;
}
}
return common_nicknamize($nickname);
}
function onPluginVersion(array &$versions)
{
$versions[] = array('name' => 'LDAP Authentication',
'version' => GNUSOCIAL_VERSION,
'author' => 'Craig Andrews',
'homepage' => 'http://status.net/wiki/Plugin:LdapAuthentication',
'rawdescription' =>
// TRANS: Plugin description.
_m('The LDAP Authentication plugin allows for StatusNet to handle authentication through LDAP.'));
return true;
}
}