Copying plugins to release branch

1 files changed, 292 insertions, 0 deletions

diff --git a/plugins/password/drivers/ldap.php b/plugins/password/drivers/ldap.php
new file mode 100644
index 000000000..e4d91fe1b
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+++ b/plugins/password/drivers/ldap.php
@@ -0,0 +1,292 @@
+<?php
+
+/**
+ * LDAP Password Driver
+ *
+ * Driver for passwords stored in LDAP
+ * This driver use the PEAR Net_LDAP2 class (http://pear.php.net/package/Net_LDAP2).
+ *
+ * @version 1.1 (2010-04-07)
+ * @author Edouard MOREAU <edouard.moreau@ensma.fr>
+ *
+ * function hashPassword based on code from the phpLDAPadmin development team (http://phpldapadmin.sourceforge.net/).
+ * function randomSalt based on code from the phpLDAPadmin development team (http://phpldapadmin.sourceforge.net/).
+ *
+ */
+
+function password_save($curpass, $passwd)
+{
+    $rcmail = rcmail::get_instance();
+    require_once ('Net/LDAP2.php');
+
+    // Building user DN
+    if ($userDN = $rcmail->config->get('password_ldap_userDN_mask')) {
+        $userDN = substitute_vars($userDN);
+    } else {
+        $userDN = search_userdn($rcmail);
+    }
+
+    if (empty($userDN)) {
+        return PASSWORD_CONNECT_ERROR;
+    }
+
+    // Connection Method
+    switch($rcmail->config->get('password_ldap_method')) {
+        case 'admin':
+            $binddn = $rcmail->config->get('password_ldap_adminDN');
+            $bindpw = $rcmail->config->get('password_ldap_adminPW');
+            break;
+        case 'user':
+        default:
+            $binddn = $userDN;
+            $bindpw = $curpass;
+            break;
+    }
+
+    // Configuration array
+    $ldapConfig = array (
+        'binddn'    => $binddn,
+        'bindpw'    => $bindpw,
+        'basedn'    => $rcmail->config->get('password_ldap_basedn'),
+        'host'      => $rcmail->config->get('password_ldap_host'),
+        'port'      => $rcmail->config->get('password_ldap_port'),
+        'starttls'  => $rcmail->config->get('password_ldap_starttls'),
+        'version'   => $rcmail->config->get('password_ldap_version'),
+    );
+
+    // Connecting using the configuration array
+    $ldap = Net_LDAP2::connect($ldapConfig);
+
+    // Checking for connection error
+    if (PEAR::isError($ldap)) {
+        return PASSWORD_CONNECT_ERROR;
+    }
+
+    // Crypting new password
+    $newCryptedPassword = hashPassword($passwd, $rcmail->config->get('password_ldap_encodage'));
+    if (!$newCryptedPassword) {
+        return PASSWORD_CRYPT_ERROR;
+    }
+
+    // Writing new crypted password to LDAP
+    $userEntry = $ldap->getEntry($userDN);
+    if (Net_LDAP2::isError($userEntry)) {
+        return PASSWORD_CONNECT_ERROR;
+    }
+
+    $pwattr = $rcmail->config->get('password_ldap_pwattr');
+    $force = $rcmail->config->get('password_ldap_force_replace');
+
+    if (!$userEntry->replace(array($pwattr => $newCryptedPassword), $force)) {
+        return PASSWORD_CONNECT_ERROR;
+    }
+
+    // Updating PasswordLastChange Attribute if desired
+    if ($lchattr = $rcmail->config->get('password_ldap_lchattr')) {
+       $current_day = (int)(time() / 86400);
+       if (!$userEntry->replace(array($lchattr => $current_day), $force)) {
+           return PASSWORD_CONNECT_ERROR;
+       }
+    }
+
+    if (Net_LDAP2::isError($userEntry->update())) {
+        return PASSWORD_CONNECT_ERROR;
+    }
+
+    // Update Samba password fields, ignore errors if attributes are not found
+    if ($rcmail->config->get('password_ldap_samba')) {
+        $sambaNTPassword = hash('md4', rcube_charset_convert($passwd, RCMAIL_CHARSET, 'UTF-16LE'));
+        $userEntry->replace(array('sambaNTPassword' => $sambaNTPassword), $force);
+        $userEntry->replace(array('sambaPwdLastSet' => time()), $force);
+        $userEntry->update();
+    }
+
+    // All done, no error
+    return PASSWORD_SUCCESS;
+}
+
+/**
+ * Bind with searchDN and searchPW and search for the user's DN.
+ * Use search_base and search_filter defined in config file.
+ * Return the found DN.
+ */
+function search_userdn($rcmail)
+{
+    $ldapConfig = array (
+        'binddn'    => $rcmail->config->get('password_ldap_searchDN'),
+        'bindpw'    => $rcmail->config->get('password_ldap_searchPW'),
+        'basedn'    => $rcmail->config->get('password_ldap_basedn'),
+        'host'      => $rcmail->config->get('password_ldap_host'),
+        'port'      => $rcmail->config->get('password_ldap_port'),
+        'starttls'  => $rcmail->config->get('password_ldap_starttls'),
+        'version'   => $rcmail->config->get('password_ldap_version'),
+    );
+
+    $ldap = Net_LDAP2::connect($ldapConfig);
+
+    if (PEAR::isError($ldap)) {
+        return '';
+    }
+
+    $base = $rcmail->config->get('password_ldap_search_base');
+    $filter = substitute_vars($rcmail->config->get('password_ldap_search_filter'));
+    $options = array (
+            'scope' => 'sub',
+            'attributes' => array(),
+    );
+
+    $result = $ldap->search($base, $filter, $options);
+    $ldap->done();
+    if (PEAR::isError($result) || ($result->count() != 1)) {
+        return '';
+    }
+
+    return $result->current()->dn();
+}
+
+/**
+ * Substitute %login, %name, %domain, %dc in $str.
+ * See plugin config for details.
+ */
+function substitute_vars($str)
+{
+    $rcmail = rcmail::get_instance();
+    $domain = $rcmail->user->get_username('domain');
+    $dc     = 'dc='.strtr($domain, array('.' => ',dc=')); // hierarchal domain string
+
+    $str = str_replace(array(
+            '%login',
+            '%name',
+            '%domain',
+            '%dc',
+        ), array(
+            $_SESSION['username'],
+            $rcmail->user->get_username('local'),
+            $domain,
+            $dc,
+        ), $str
+    );
+
+    return $str;
+}
+
+
+/**
+ * Code originaly from the phpLDAPadmin development team
+ * http://phpldapadmin.sourceforge.net/
+ *
+ * Hashes a password and returns the hash based on the specified enc_type.
+ *
+ * @param string $passwordClear The password to hash in clear text.
+ * @param string $encodageType Standard LDAP encryption type which must be one of
+ *        crypt, ext_des, md5crypt, blowfish, md5, sha, smd5, ssha, or clear.
+ * @return string The hashed password.
+ *
+ */
+
+function hashPassword( $passwordClear, $encodageType ) 
+{
+    $encodageType = strtolower( $encodageType );
+    switch( $encodageType ) {
+        case 'crypt': 
+            $cryptedPassword = '{CRYPT}' . crypt($passwordClear,randomSalt(2)); 
+            break;
+
+        case 'ext_des':
+            // extended des crypt. see OpenBSD crypt man page.
+            if ( ! defined( 'CRYPT_EXT_DES' ) || CRYPT_EXT_DES == 0 ) {
+                // Your system crypt library does not support extended DES encryption.
+                return FALSE;
+            }
+            $cryptedPassword = '{CRYPT}' . crypt( $passwordClear, '_' . randomSalt(8) );
+            break;
+
+        case 'md5crypt':
+            if( ! defined( 'CRYPT_MD5' ) || CRYPT_MD5 == 0 ) {
+                // Your system crypt library does not support md5crypt encryption.
+                return FALSE;
+            }
+            $cryptedPassword = '{CRYPT}' . crypt( $passwordClear , '$1$' . randomSalt(9) );
+            break;
+
+        case 'blowfish':
+            if( ! defined( 'CRYPT_BLOWFISH' ) || CRYPT_BLOWFISH == 0 ) {
+                // Your system crypt library does not support blowfish encryption.
+                return FALSE;
+            }
+            // hardcoded to second blowfish version and set number of rounds
+            $cryptedPassword = '{CRYPT}' . crypt( $passwordClear , '$2a$12$' . randomSalt(13) );
+            break;
+
+        case 'md5':
+            $cryptedPassword = '{MD5}' . base64_encode( pack( 'H*' , md5( $passwordClear) ) );
+            break;
+
+        case 'sha':
+            if( function_exists('sha1') ) {
+                // use php 4.3.0+ sha1 function, if it is available.
+                $cryptedPassword = '{SHA}' . base64_encode( pack( 'H*' , sha1( $passwordClear) ) );
+            } elseif( function_exists( 'mhash' ) ) {
+                $cryptedPassword = '{SHA}' . base64_encode( mhash( MHASH_SHA1, $passwordClear) );
+            } else {
+                return FALSE; //Your PHP install does not have the mhash() function. Cannot do SHA hashes.
+            }
+            break;
+
+        case 'ssha':
+            if( function_exists( 'mhash' ) && function_exists( 'mhash_keygen_s2k' ) ) {
+                mt_srand( (double) microtime() * 1000000 );
+                $salt = mhash_keygen_s2k( MHASH_SHA1, $passwordClear, substr( pack( 'h*', md5( mt_rand() ) ), 0, 8 ), 4 );
+                $cryptedPassword = '{SSHA}'.base64_encode( mhash( MHASH_SHA1, $passwordClear.$salt ).$salt );
+            } else {
+                return FALSE; //Your PHP install does not have the mhash() function. Cannot do SHA hashes.
+            }
+            break;
+
+        case 'smd5':
+            if( function_exists( 'mhash' ) && function_exists( 'mhash_keygen_s2k' ) ) {
+                mt_srand( (double) microtime() * 1000000 );
+                $salt = mhash_keygen_s2k( MHASH_MD5, $passwordClear, substr( pack( 'h*', md5( mt_rand() ) ), 0, 8 ), 4 );
+                $cryptedPassword = '{SMD5}'.base64_encode( mhash( MHASH_MD5, $passwordClear.$salt ).$salt );
+            } else {
+                return FALSE; //Your PHP install does not have the mhash() function. Cannot do SHA hashes.
+            }
+            break;
+
+        case 'clear':
+        default:
+            $cryptedPassword = $passwordClear;
+    }
+
+    return $cryptedPassword;
+}
+
+/**
+ * Code originaly from the phpLDAPadmin development team
+ * http://phpldapadmin.sourceforge.net/
+ *
+ * Used to generate a random salt for crypt-style passwords. Salt strings are used
+ * to make pre-built hash cracking dictionaries difficult to use as the hash algorithm uses
+ * not only the user's password but also a randomly generated string. The string is
+ * stored as the first N characters of the hash for reference of hashing algorithms later.
+ *
+ * --- added 20021125 by bayu irawan <bayuir@divnet.telkom.co.id> ---
+ * --- ammended 20030625 by S C Rigler <srigler@houston.rr.com> ---
+ *
+ * @param int $length The length of the salt string to generate.
+ * @return string The generated salt string.
+ */
+function randomSalt( $length )
+{
+    $possible = '0123456789'.
+        'abcdefghijklmnopqrstuvwxyz'.
+        'ABCDEFGHIJKLMNOPQRSTUVWXYZ'.
+        './';
+    $str = '';
+//    mt_srand((double)microtime() * 1000000);
+
+    while (strlen($str) < $length)
+        $str .= substr($possible, (rand() % strlen($possible)), 1);
+
+    return $str;
+}