1 files changed, 242 insertions, 0 deletions
diff --git a/plugins/password/drivers/ldap_simple.php b/plugins/password/drivers/ldap_simple.php
new file mode 100644
index 000000000..67f53d091
--- /dev/null
+++ b/plugins/password/drivers/ldap_simple.php
@@ -0,0 +1,242 @@
+<?php
+
+/**
+ * Simple LDAP Password Driver
+ *
+ * Driver for passwords stored in LDAP
+ * This driver is based on Edouard's LDAP Password Driver, but does not
+ * require PEAR's Net_LDAP2 to be installed
+ * 
+ * @version 1.0 (2010-07-31)
+ * @author Wout Decre <wout@canodus.be>
+ */
+function password_save($curpass, $passwd)
+{
+	$rcmail = rcmail::get_instance();
+
+	/* Connect */
+	if (!$ds = ldap_connect($rcmail->config->get('password_ldap_host'), $rcmail->config->get('password_ldap_port'))) {
+		ldap_unbind($ds);
+		return PASSWORD_CONNECT_ERROR;
+	}
+
+	/* Set protocol version */
+	if (!ldap_set_option($ds, LDAP_OPT_PROTOCOL_VERSION, $rcmail->config->get('password_ldap_version'))) {
+		ldap_unbind($ds);
+		return PASSWORD_CONNECT_ERROR;
+	}
+
+	/* Start TLS */
+	if ($rcmail->config->get('password_ldap_starttls')) {
+		if (!ldap_start_tls($ds)) {
+			ldap_unbind($ds);
+			return PASSWORD_CONNECT_ERROR;
+		}
+	}
+
+	/* Build user DN */
+	if ($user_dn = $rcmail->config->get('password_ldap_userDN_mask')) {
+		$user_dn = ldap_simple_substitute_vars($user_dn);
+	} else {
+		$user_dn = ldap_simple_search_userdn($rcmail, $ds);
+	}
+
+	if (empty($user_dn)) {
+		ldap_unbind($ds);
+		return PASSWORD_CONNECT_ERROR;
+	}
+
+	/* Connection method */
+	switch ($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 = $user_dn;
+			$bindpw = $curpass;
+			break;
+	}
+
+	/* Bind */
+	if (!ldap_bind($ds, $binddn, $bindpw)) {
+		ldap_unbind($ds);
+		return PASSWORD_CONNECT_ERROR;
+	}
+
+	/* Crypting new password */
+	$crypted_pass = ldap_simple_hash_password($passwd, $rcmail->config->get('password_ldap_encodage'));
+	if (!$crypted_pass) {
+		ldap_unbind($ds);
+		return PASSWORD_CRYPT_ERROR;
+	}
+
+	$entree[$rcmail->config->get('password_ldap_pwattr')] = $crypted_pass;
+
+	/* Updating PasswordLastChange Attribute if desired */
+	if ($lchattr = $rcmail->config->get('password_ldap_lchattr')) {
+		$entree[$lchattr] = (int)(time() / 86400);
+	}
+
+    /* Update Samba password fields */
+    if ($smbattr = $rcmail->config->get('password_ldap_samba')) {
+        $sambaNTPassword = hash('md4', rcube_charset_convert($passwd, RCMAIL_CHARSET, 'UTF-16LE'));
+        $entree['sambaNTPassword'] = $sambaNTPassword;
+        $entree['sambaPwdLastSet'] = time();
+    }
+
+	if (!ldap_modify($ds, $user_dn, $entree)) {
+		ldap_unbind($ds);
+		return PASSWORD_CONNECT_ERROR;
+	}
+
+	/* All done, no error */
+	ldap_unbind($ds);
+	return PASSWORD_SUCCESS;
+}
+
+/**
+ * Bind with searchDN and searchPW and search for the user's DN
+ * Use search_base and search_filter defined in config file
+ * Return the found DN
+ */
+function ldap_simple_search_userdn($rcmail, $ds)
+{
+	/* Bind */
+	if (!ldap_bind($ds, $rcmail->config->get('password_ldap_searchDN'), $rcmail->config->get('password_ldap_searchPW'))) {
+		return false;
+	}
+
+	/* Search for the DN */
+	if (!$sr = ldap_search($ds, $rcmail->config->get('password_ldap_search_base'), ldap_simple_substitute_vars($rcmail->config->get('password_ldap_search_filter')))) {
+		return false;
+	}
+
+	/* If no or more entries were found, return false */
+	if (ldap_count_entries($ds, $sr) != 1) {
+		return false;
+	}
+
+	return ldap_get_dn($ds, ldap_first_entry($ds, $sr));
+}
+
+/**
+ * Substitute %login, %name, %domain, %dc in $str
+ * See plugin config for details
+ */
+function ldap_simple_substitute_vars($str)
+{
+	$str = str_replace('%login', $_SESSION['username'], $str);
+	$str = str_replace('%l', $_SESSION['username'], $str);
+
+	$parts = explode('@', $_SESSION['username']);
+
+	if (count($parts) == 2) {
+        $dc = 'dc='.strtr($parts[1], array('.' => ',dc=')); // hierarchal domain string
+
+		$str = str_replace('%name', $parts[0], $str);
+        $str = str_replace('%n', $parts[0], $str);
+        $str = str_replace('%dc', $dc, $str);
+		$str = str_replace('%domain', $parts[1], $str);
+		$str = str_replace('%d', $parts[1], $str);
+	}
+
+	return $str;
+}
+
+/**
+ * Code originaly from the phpLDAPadmin development team
+ * http://phpldapadmin.sourceforge.net/
+ *
+ * Hashes a password and returns the hash based on the specified enc_type
+ */
+function ldap_simple_hash_password($password_clear, $encodage_type)
+{
+	$encodage_type = strtolower($encodage_type);
+	switch ($encodage_type) {
+		case 'crypt':
+			$crypted_password = '{CRYPT}' . crypt($password_clear, ldap_simple_random_salt(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;
+			}
+			$crypted_password = '{CRYPT}' . crypt($password_clear, '_' . ldap_simple_random_salt(8));
+			break;
+		case 'md5crypt':
+			if (!defined('CRYPT_MD5') || CRYPT_MD5 == 0) {
+				/* Your system crypt library does not support md5crypt encryption */
+				return false;
+			}
+			$crypted_password = '{CRYPT}' . crypt($password_clear, '$1$' . ldap_simple_random_salt(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 */
+			$crypted_password = '{CRYPT}' . crypt($password_clear, '$2a$12$' . ldap_simple_random_salt(13));
+			break;
+		case 'md5':
+			$crypted_password = '{MD5}' . base64_encode(pack('H*', md5($password_clear)));
+			break;
+		case 'sha':
+			if (function_exists('sha1')) {
+				/* Use PHP 4.3.0+ sha1 function, if it is available */
+				$crypted_password = '{SHA}' . base64_encode(pack('H*', sha1($password_clear)));
+			} else if (function_exists('mhash')) {
+				$crypted_password = '{SHA}' . base64_encode(mhash(MHASH_SHA1, $password_clear));
+			} else {
+				/* Your PHP install does not have the mhash() function */
+				return false;
+			}
+			break;
+		case 'ssha':
+			if (function_exists('mhash') && function_exists('mhash_keygen_s2k')) {
+				mt_srand((double) microtime() * 1000000 );
+				$salt = mhash_keygen_s2k(MHASH_SHA1, $password_clear, substr(pack('h*', md5(mt_rand())), 0, 8), 4);
+				$crypted_password = '{SSHA}' . base64_encode(mhash(MHASH_SHA1, $password_clear . $salt) . $salt);
+			} else {
+				/* Your PHP install does not have the mhash() function */
+				return false;
+			}
+			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);
+				$crypted_password = '{SMD5}' . base64_encode(mhash(MHASH_MD5, $password_clear . $salt) . $salt);
+			} else {
+				/* Your PHP install does not have the mhash() function */
+				return false;
+			}
+			break;
+		case 'clear':
+		default:
+			$crypted_password = $password_clear;
+	}
+
+	return $crypted_password;
+}
+
+/**
+ * Code originaly from the phpLDAPadmin development team
+ * http://phpldapadmin.sourceforge.net/
+ *
+ * Used to generate a random salt for crypt-style passwords
+ */
+function ldap_simple_random_salt($length)
+{
+	$possible = '0123456789' . 'abcdefghijklmnopqrstuvwxyz' . 'ABCDEFGHIJKLMNOPQRSTUVWXYZ' . './';
+	$str = '';
+	// mt_srand((double)microtime() * 1000000);
+	while (strlen($str) < $length) {
+		$str .= substr($possible, (rand() % strlen($possible)), 1);
+	}
+
+	return $str;
+}