ldapsaisie/public_html/includes/class/class.LSattr_ldap_password.php

220 lines
7.4 KiB
PHP

<?php
/*******************************************************************************
* Copyright (C) 2007 Easter-eggs
* http://ldapsaisie.labs.libre-entreprise.org
*
* Author: See AUTHORS file in top-level directory.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License version 2
* as published by the Free Software Foundation.
*
* 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
******************************************************************************/
/**
* Ldap attribute type password
*
*/
class LSattr_ldap_password extends LSattr_ldap {
var $clearPassword = NULL;
/**
* Return the display value of this attribute
*
* @param[in] $data mixed The value of this attribute
*
* @retval mixed The display value of this attribute
*/
function getDisplayValue($data) {
return '********';
}
/**
* Return the value of this attribute to be stocked
*
* Note : Password encoding was strongly inspired of the project phpLdapAdmin.
* URL : http://phpldapadmin.sourceforge.net/
*
* @param[in] $data mixed The attribute value
*
* @retval mixed The value of this attribute to be stocked
*/
function getUpdateData($data) {
$this -> clearPassword = $data[0];
$data=array();
$data[]=$this -> encodePassword($this -> clearPassword);
// Wildcard Password
if (isset($this -> config['ldap_options']['wildcardPassword'])) {
if(!is_array($this -> config['ldap_options']['wildcardPassword'])) {
$data[]=$this -> encodePassword($this -> config['ldap_options']['wildcardPassword']);
}
else {
foreach($this -> config['ldap_options']['wildcardPassword'] as $pwd) {
$data[]=$this -> encodePassword($pwd);
}
}
}
// Wildcard Password already encoded
if (isset($this -> config['ldap_options']['encodedWildcardPassword'])) {
if(!is_array($this -> config['ldap_options']['encodedWildcardPassword'])) {
$data[]=$this -> config['ldap_options']['encodedWildcardPassword'];
}
else {
$data=array_merge($data,$this -> config['ldap_options']['encodedWildcardPassword']);
}
}
return $data;
}
/**
* Encode the password
*
* Note : Password encoding was strongly inspired of the project phpLdapAdmin.
* URL : http://phpldapadmin.sourceforge.net/
*
* @param[in] $clearPassword string The clear password
*
* @retval strinf The encode password
*/
function encodePassword($clearPassword) {
if (isset($this -> config['ldap_options']['encode_function']) || $this -> config['ldap_options']['encode']=='function') {
if (!is_callable($this -> config['ldap_options']['encode_function'])) {
$this -> config['ldap_options']['encode'] = 'clear';
LSerror :: addErrorCode('LSattr_ldap_password_02',$this -> config['ldap_options']['encode_function']);
}
else {
$this -> config['ldap_options']['encode'] = 'function';
}
}
elseif (!$this -> config['ldap_options']['encode']) {
$this -> config['ldap_options']['encode'] = 'md5crypt';
}
switch($this -> config['ldap_options']['encode']) {
case 'crypt':
if ($this -> config['ldap_options']['no_random_crypt_salt']) {
return '{CRYPT}' . crypt($clearPassword,substr($clearPassword,0,2));
}
else {
return '{CRYPT}' . crypt($clearPassword,$this -> getSalt(2));
}
break;
case 'ext_des':
if ( ! defined( 'CRYPT_EXT_DES' ) || CRYPT_EXT_DES == 0 ) {
LSerror :: addErrorCode('LSattr_ldap_password_01','ext_des');
}
else {
return '{CRYPT}' . crypt( $clearPassword, '_' . $this -> getSalt(8) );
}
break;
case 'blowfish':
if( ! defined( 'CRYPT_BLOWFISH' ) || CRYPT_BLOWFISH == 0 ) {
LSerror :: addErrorCode('LSattr_ldap_password_01','blowfish');
}
else {
return '{CRYPT}' . crypt( $clearPassword, '$2a$12$' . $this -> getSalt(13) );
}
break;
case 'sha':
if( function_exists('sha1') ) {
return '{SHA}' . base64_encode( pack( 'H*' , sha1( $clearPassword ) ) );
}
elseif( function_exists( 'mhash' ) ) {
return '{SHA}' . base64_encode( mhash( MHASH_SHA1, $clearPassword ) );
} else {
LSerror :: addErrorCode('LSattr_ldap_password_01','sha');
}
break;
case 'ssha':
if( function_exists( 'mhash' ) && function_exists( 'mhash_keygen_s2k' ) ) {
mt_srand( (double) microtime() * 1000000 );
$salt = mhash_keygen_s2k( MHASH_SHA1, $clearPassword, substr( pack( "h*", md5( mt_rand() ) ), 0, 8 ), 4 );
return "{SSHA}".base64_encode( mhash( MHASH_SHA1, $clearPassword.$salt ).$salt );
}
else {
LSerror :: addErrorCode('LSattr_ldap_password_01','ssha');
}
break;
case 'smd5':
if( function_exists( 'mhash' ) && function_exists( 'mhash_keygen_s2k' ) ) {
mt_srand( (double) microtime() * 1000000 );
$salt = mhash_keygen_s2k( MHASH_MD5, $password_clear, substr( pack( "h*", md5( mt_rand() ) ), 0, 8 ), 4 );
return "{SMD5}".base64_encode( mhash( MHASH_MD5, $password_clear.$salt ).$salt );
}
else {
LSerror :: addErrorCode('LSattr_ldap_password_01','smd5');
}
break;
case 'md5':
return '{MD5}' . base64_encode( pack( 'H*' , md5( $clearPassword ) ) );
break;
case 'md5crypt':
if( ! defined( 'CRYPT_MD5' ) || CRYPT_MD5 == 0 ) {
LSerror :: addErrorCode('LSattr_ldap_password_01','md5crypt');
}
else {
return '{CRYPT}'.crypt($clearPassword,'$1$'.$this -> getSalt().'$');
}
break;
case 'clear':
return $clearPassword;
break;
case 'function':
return $this -> config['ldap_options']['encode_function']($this -> attribute -> ldapObject, $clearPassword);
break;
}
LSerror :: addErrorCode('LSattr_ldap_password_01',$this -> config['ldap_options']['encode']);
return $clearPassword;
}
/**
* Return salt (random string)
*
* @param[in] integer Number of caracters in this salt
*
* @retval string A salt
*/
function getSalt($length=8) {
$pattern = "1234567890abcdefghijklmnopqrstuvwxyz";
$key = $pattern{rand(0,35)};
for($i=1;$i<$length;$i++)
{
$key .= $pattern{rand(0,35)};
}
return $key;
}
/**
* Return the password in clear text
*
* @retval string The password in clear text
*/
function getClearPassword() {
return $this -> clearPassword;
}
}
/**
* Error Codes
**/
LSerror :: defineError('LSattr_ldap_password_01',
_("LSattr_ldap_password : Encoding type %{type} is not supported. This password will be stored in clear text.")
);
LSerror :: defineError('LSattr_ldap_password_02',
_("LSattr_ldap_password : Encoding function %{function} is not callable. This password will be stored in clear text.")
);
?>