diff --git a/phpBB/includes/auth/provider_ldap.php b/phpBB/includes/auth/provider_ldap.php new file mode 100644 index 0000000000..fb2be5ae9d --- /dev/null +++ b/phpBB/includes/auth/provider_ldap.php @@ -0,0 +1,358 @@ +lang['LDAP_NO_LDAP_EXTENSION']; + } + + $config['ldap_port'] = (int) $config['ldap_port']; + if ($config['ldap_port']) + { + $ldap = @ldap_connect($config['ldap_server'], $config['ldap_port']); + } + else + { + $ldap = @ldap_connect($config['ldap_server']); + } + + if (!$ldap) + { + return $user->lang['LDAP_NO_SERVER_CONNECTION']; + } + + @ldap_set_option($ldap, LDAP_OPT_PROTOCOL_VERSION, 3); + @ldap_set_option($ldap, LDAP_OPT_REFERRALS, 0); + + if ($config['ldap_user'] || $config['ldap_password']) + { + if (!@ldap_bind($ldap, htmlspecialchars_decode($config['ldap_user']), htmlspecialchars_decode($config['ldap_password']))) + { + return $user->lang['LDAP_INCORRECT_USER_PASSWORD']; + } + } + + // ldap_connect only checks whether the specified server is valid, so the connection might still fail + $search = @ldap_search( + $ldap, + htmlspecialchars_decode($config['ldap_base_dn']), + ldap_user_filter($user->data['username']), + (empty($config['ldap_email'])) ? + array(htmlspecialchars_decode($config['ldap_uid'])) : + array(htmlspecialchars_decode($config['ldap_uid']), htmlspecialchars_decode($config['ldap_email'])), + 0, + 1 + ); + + if ($search === false) + { + return $user->lang['LDAP_SEARCH_FAILED']; + } + + $result = @ldap_get_entries($ldap, $search); + + @ldap_close($ldap); + + + if (!is_array($result) || sizeof($result) < 2) + { + return sprintf($user->lang['LDAP_NO_IDENTITY'], $user->data['username']); + } + + if (!empty($config['ldap_email']) && !isset($result[0][htmlspecialchars_decode($config['ldap_email'])])) + { + return $user->lang['LDAP_NO_EMAIL']; + } + + return false; + } + + /** + * Login function + */ + public function login(&$username, &$password) + { + global $db, $config, $user; + + // do not allow empty password + if (!$password) + { + return array( + 'status' => LOGIN_ERROR_PASSWORD, + 'error_msg' => 'NO_PASSWORD_SUPPLIED', + 'user_row' => array('user_id' => ANONYMOUS), + ); + } + + if (!$username) + { + return array( + 'status' => LOGIN_ERROR_USERNAME, + 'error_msg' => 'LOGIN_ERROR_USERNAME', + 'user_row' => array('user_id' => ANONYMOUS), + ); + } + + if (!@extension_loaded('ldap')) + { + return array( + 'status' => LOGIN_ERROR_EXTERNAL_AUTH, + 'error_msg' => 'LDAP_NO_LDAP_EXTENSION', + 'user_row' => array('user_id' => ANONYMOUS), + ); + } + + $config['ldap_port'] = (int) $config['ldap_port']; + if ($config['ldap_port']) + { + $ldap = @ldap_connect($config['ldap_server'], $config['ldap_port']); + } + else + { + $ldap = @ldap_connect($config['ldap_server']); + } + + if (!$ldap) + { + return array( + 'status' => LOGIN_ERROR_EXTERNAL_AUTH, + 'error_msg' => 'LDAP_NO_SERVER_CONNECTION', + 'user_row' => array('user_id' => ANONYMOUS), + ); + } + + @ldap_set_option($ldap, LDAP_OPT_PROTOCOL_VERSION, 3); + @ldap_set_option($ldap, LDAP_OPT_REFERRALS, 0); + + if ($config['ldap_user'] || $config['ldap_password']) + { + if (!@ldap_bind($ldap, htmlspecialchars_decode($config['ldap_user']), htmlspecialchars_decode($config['ldap_password']))) + { + return array( + 'status' => LOGIN_ERROR_EXTERNAL_AUTH, + 'error_msg' => 'LDAP_NO_SERVER_CONNECTION', + 'user_row' => array('user_id' => ANONYMOUS), + ); + } + } + + $search = @ldap_search( + $ldap, + htmlspecialchars_decode($config['ldap_base_dn']), + ldap_user_filter($username), + (empty($config['ldap_email'])) ? + array(htmlspecialchars_decode($config['ldap_uid'])) : + array(htmlspecialchars_decode($config['ldap_uid']), htmlspecialchars_decode($config['ldap_email'])), + 0, + 1 + ); + + $ldap_result = @ldap_get_entries($ldap, $search); + + if (is_array($ldap_result) && sizeof($ldap_result) > 1) + { + if (@ldap_bind($ldap, $ldap_result[0]['dn'], htmlspecialchars_decode($password))) + { + @ldap_close($ldap); + + $sql ='SELECT user_id, username, user_password, user_passchg, user_email, user_type + FROM ' . USERS_TABLE . " + WHERE username_clean = '" . $db->sql_escape(utf8_clean_string($username)) . "'"; + $result = $db->sql_query($sql); + $row = $db->sql_fetchrow($result); + $db->sql_freeresult($result); + + if ($row) + { + unset($ldap_result); + + // User inactive... + if ($row['user_type'] == USER_INACTIVE || $row['user_type'] == USER_IGNORE) + { + return array( + 'status' => LOGIN_ERROR_ACTIVE, + 'error_msg' => 'ACTIVE_ERROR', + 'user_row' => $row, + ); + } + + // Successful login... set user_login_attempts to zero... + return array( + 'status' => LOGIN_SUCCESS, + 'error_msg' => false, + 'user_row' => $row, + ); + } + else + { + // retrieve default group id + $sql = 'SELECT group_id + FROM ' . GROUPS_TABLE . " + WHERE group_name = '" . $db->sql_escape('REGISTERED') . "' + AND group_type = " . GROUP_SPECIAL; + $result = $db->sql_query($sql); + $row = $db->sql_fetchrow($result); + $db->sql_freeresult($result); + + if (!$row) + { + trigger_error('NO_GROUP'); + } + + // generate user account data + $ldap_user_row = array( + 'username' => $username, + 'user_password' => phpbb_hash($password), + 'user_email' => (!empty($config['ldap_email'])) ? utf8_htmlspecialchars($ldap_result[0][htmlspecialchars_decode($config['ldap_email'])][0]) : '', + 'group_id' => (int) $row['group_id'], + 'user_type' => USER_NORMAL, + 'user_ip' => $user->ip, + 'user_new' => ($config['new_member_post_limit']) ? 1 : 0, + ); + + unset($ldap_result); + + // this is the user's first login so create an empty profile + return array( + 'status' => LOGIN_SUCCESS_CREATE_PROFILE, + 'error_msg' => false, + 'user_row' => $ldap_user_row, + ); + } + } + else + { + unset($ldap_result); + @ldap_close($ldap); + + // Give status about wrong password... + return array( + 'status' => LOGIN_ERROR_PASSWORD, + 'error_msg' => 'LOGIN_ERROR_PASSWORD', + 'user_row' => array('user_id' => ANONYMOUS), + ); + } + } + + @ldap_close($ldap); + + return array( + 'status' => LOGIN_ERROR_USERNAME, + 'error_msg' => 'LOGIN_ERROR_USERNAME', + 'user_row' => array('user_id' => ANONYMOUS), + ); + } + + public function autologin(); + + /** + * This function is used to output any required fields in the authentication + * admin panel. It also defines any required configuration table fields. + */ + public function acp(&$new) + { + global $user; + + $tpl = ' + +
+

' . $user->lang['LDAP_SERVER_EXPLAIN'] . '
+
+
+
+

' . $user->lang['LDAP_PORT_EXPLAIN'] . '
+
+
+
+

' . $user->lang['LDAP_DN_EXPLAIN'] . '
+
+
+
+

' . $user->lang['LDAP_UID_EXPLAIN'] . '
+
+
+
+

' . $user->lang['LDAP_USER_FILTER_EXPLAIN'] . '
+
+
+
+

' . $user->lang['LDAP_EMAIL_EXPLAIN'] . '
+
+
+
+

' . $user->lang['LDAP_USER_EXPLAIN'] . '
+
+
+
+

' . $user->lang['LDAP_PASSWORD_EXPLAIN'] . '
+
+
+ '; + + // These are fields required in the config table + return array( + 'tpl' => $tpl, + 'config' => array('ldap_server', 'ldap_port', 'ldap_base_dn', 'ldap_uid', 'ldap_user_filter', 'ldap_email', 'ldap_user', 'ldap_password') + ); + } + + /** + * Generates a filter string for ldap_search to find a user + * + * @param $username string Username identifying the searched user + * + * @return string A filter string for ldap_search + */ + public function user_filter($username) + { + global $config; + + $filter = '(' . $config['ldap_uid'] . '=' . ldap_escape(htmlspecialchars_decode($username)) . ')'; + if ($config['ldap_user_filter']) + { + $_filter = ($config['ldap_user_filter'][0] == '(' && substr($config['ldap_user_filter'], -1) == ')') ? $config['ldap_user_filter'] : "({$config['ldap_user_filter']})"; + $filter = "(&{$filter}{$_filter})"; + } + return $filter; + } + + /** + * Escapes an LDAP AttributeValue + */ + public function escape($string) + { + return str_replace(array('*', '\\', '(', ')'), array('\\*', '\\\\', '\\(', '\\)'), $string); + } +}