- Password plugin: added LDAP driver
alecpl
15 years ago
parent
7fbfd451d1
commit
c8a1e6eb63
@ -0,0 +1,178 @@
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<?php
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/**
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* LDAP Password Driver
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*
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* Driver for passwords stored in LDAP
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* This driver use the PEAR Net_LDAP2 class (http://pear.php.net/package/Net_LDAP2).
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*
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* @version 1.0 (2009-06-24)
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* @author Edouard MOREAU <edouard.moreau@ensma.fr>
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*
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* function hashPassword based on code from the phpLDAPadmin development team (http://phpldapadmin.sourceforge.net/).
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* function randomSalt based on code from the phpLDAPadmin development team (http://phpldapadmin.sourceforge.net/).
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*
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*/
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function password_save($curpass, $passwd)
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{
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$rcmail = rcmail::get_instance();
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require_once ('Net/LDAP2.php');
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// Building user DN
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$userDN = str_replace('%login', $_SESSION['username'], $rcmail->config->get('password_ldap_userDN_mask'));
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if (empty($userDN)) {return PASSWORD_CONNECT_ERROR;}
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// Connection Method
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switch($rcmail->config->get('password_ldap_method')) {
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case 'user': $binddn = $userDN; $bindpw = $curpass; break;
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case 'admin': $binddn = $rcmail->config->get('password_ldap_adminDN'); $bindpw = $rcmail->config->get('password_ldap_adminPW'); break;
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default: $binddn = $userDN; $bindpw = $curpass; break; // default is user mode
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}
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// Configuration array
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$ldapConfig = array (
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'binddn' => $binddn,
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'bindpw' => $bindpw,
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'basedn' => $rcmail->config->get('password_ldap_basedn'),
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'host' => $rcmail->config->get('password_ldap_host'),
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'port' => $rcmail->config->get('password_ldap_port'),
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'starttls' => $rcmail->config->get('password_ldap_starttls'),
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'version' => $rcmail->config->get('password_ldap_version'),
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);
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// Connecting using the configuration array
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$ldap = Net_LDAP2::connect($ldapConfig);
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// Checking for connection error
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if (PEAR::isError($ldap)) {return PASSWORD_CONNECT_ERROR;}
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// Crypting new password
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$newCryptedPassword = hashPassword($passwd, $rcmail->config->get('password_ldap_encodage'));
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if (!$newCryptedPassword) {return PASSWORD_CRYPT_ERROR;}
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// Writing new crypted password to LDAP
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$userEntry = $ldap->getEntry($userDN);
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if (Net_LDAP2::isError($userEntry)) {return PASSWORD_CONNECT_ERROR;}
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if (!$userEntry->replace(array($rcmail->config->get('password_ldap_pwattr') => $newCryptedPassword))) {return PASSWORD_CONNECT_ERROR;}
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if (Net_LDAP2::isError($userEntry->update())) {return PASSWORD_CONNECT_ERROR;}
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// All done, no error
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return PASSWORD_SUCCESS;
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}
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/**
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* Code originaly from the phpLDAPadmin development team
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* http://phpldapadmin.sourceforge.net/
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*
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* Hashes a password and returns the hash based on the specified enc_type.
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*
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* @param string $passwordClear The password to hash in clear text.
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* @param string $encodageType Standard LDAP encryption type which must be one of
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* crypt, ext_des, md5crypt, blowfish, md5, sha, smd5, ssha, or clear.
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* @return string The hashed password.
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*
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*/
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function hashPassword( $passwordClear, $encodageType )
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{
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$encodageType = strtolower( $encodageType );
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switch( $encodageType ) {
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case 'crypt':
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$cryptedPassword = '{CRYPT}' . crypt($passwordClear,randomSalt(2));
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break;
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case 'ext_des':
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// extended des crypt. see OpenBSD crypt man page.
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if ( ! defined( 'CRYPT_EXT_DES' ) || CRYPT_EXT_DES == 0 ) {return FALSE;} //Your system crypt library does not support extended DES encryption.
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$cryptedPassword = '{CRYPT}' . crypt( $passwordClear, '_' . randomSalt(8) );
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break;
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case 'md5crypt':
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if( ! defined( 'CRYPT_MD5' ) || CRYPT_MD5 == 0 ) {return FALSE;} //Your system crypt library does not support md5crypt encryption.
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$cryptedPassword = '{CRYPT}' . crypt( $passwordClear , '$1$' . randomSalt(9) );
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break;
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case 'blowfish':
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if( ! defined( 'CRYPT_BLOWFISH' ) || CRYPT_BLOWFISH == 0 ) {return FALSE;} //Your system crypt library does not support blowfish encryption.
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$cryptedPassword = '{CRYPT}' . crypt( $passwordClear , '$2a$12$' . randomSalt(13) ); // hardcoded to second blowfish version and set number of rounds
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break;
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case 'md5':
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$cryptedPassword = '{MD5}' . base64_encode( pack( 'H*' , md5( $passwordClear) ) );
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break;
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case 'sha':
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if( function_exists('sha1') ) {
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// use php 4.3.0+ sha1 function, if it is available.
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$cryptedPassword = '{SHA}' . base64_encode( pack( 'H*' , sha1( $passwordClear) ) );
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} elseif( function_exists( 'mhash' ) ) {
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$cryptedPassword = '{SHA}' . base64_encode( mhash( MHASH_SHA1, $passwordClear) );
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} else {
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return FALSE; //Your PHP install does not have the mhash() function. Cannot do SHA hashes.
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}
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break;
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case 'ssha':
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if( function_exists( 'mhash' ) && function_exists( 'mhash_keygen_s2k' ) ) {
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mt_srand( (double) microtime() * 1000000 );
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$salt = mhash_keygen_s2k( MHASH_SHA1, $passwordClear, substr( pack( "h*", md5( mt_rand() ) ), 0, 8 ), 4 );
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$cryptedPassword = "{SSHA}".base64_encode( mhash( MHASH_SHA1, $passwordClear.$salt ).$salt );
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} else {
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return FALSE; //Your PHP install does not have the mhash() function. Cannot do SHA hashes.
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}
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break;
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case 'smd5':
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if( function_exists( 'mhash' ) && function_exists( 'mhash_keygen_s2k' ) ) {
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mt_srand( (double) microtime() * 1000000 );
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$salt = mhash_keygen_s2k( MHASH_MD5, $passwordClear, substr( pack( "h*", md5( mt_rand() ) ), 0, 8 ), 4 );
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$cryptedPassword = "{SMD5}".base64_encode( mhash( MHASH_MD5, $passwordClear.$salt ).$salt );
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} else {
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return FALSE; //Your PHP install does not have the mhash() function. Cannot do SHA hashes.
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}
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break;
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case 'clear':
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default:
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$cryptedPassword = $passwordClear;
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}
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return $cryptedPassword;
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}
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/**
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* Code originaly from the phpLDAPadmin development team
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* http://phpldapadmin.sourceforge.net/
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*
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* Used to generate a random salt for crypt-style passwords. Salt strings are used
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* to make pre-built hash cracking dictionaries difficult to use as the hash algorithm uses
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* not only the user's password but also a randomly generated string. The string is
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* stored as the first N characters of the hash for reference of hashing algorithms later.
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*
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* --- added 20021125 by bayu irawan <bayuir@divnet.telkom.co.id> ---
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* --- ammended 20030625 by S C Rigler <srigler@houston.rr.com> ---
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*
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* @param int $length The length of the salt string to generate.
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* @return string The generated salt string.
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*/
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function randomSalt( $length )
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{
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$possible = '0123456789'.
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'abcdefghijklmnopqrstuvwxyz'.
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'ABCDEFGHIJKLMNOPQRSTUVWXYZ'.
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'./';
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$str = "";
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mt_srand((double)microtime() * 1000000);
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while( strlen( $str ) < $length )
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$str .= substr( $possible, ( rand() % strlen( $possible ) ), 1 );
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return $str;
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}
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?>
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