Esempio n. 1
0
 /**
  * Method to check the fixed param keyword for validity and further more escape the free text elems (even if this is not semantic)
  * @param array $whereParam
  * @param ParameterObject $d 
  * @param bool $escapeFreeText if the function shall also escape the free text of the where clause
  * @return boolean
  */
 public static function isWhereClauseValid($whereParam, $d, $escapeFreeText = true)
 {
     if (Config::useSecureMode() && $whereParam) {
         //error_log(print_r($whereParam,true));
         $validFields = Config::getValidTables()[$d->getAttribute(PO::ATTR_TABLE)];
         $validOperators = array('LIKE', '=', '<=', '>=', '!=');
         $validConcaters = array('OR', 'AND');
         foreach ($whereParam as $param_group) {
             if (in_array($param_group[0], $validFields)) {
                 if (in_array($param_group[1], $validOperators)) {
                     if (in_array($param_group[3], $validConcaters) || $param_group[3] === null) {
                         continue;
                     }
                 }
             }
             return false;
         }
         if ($escapeFreeText) {
             // secure free text elems
             $whereParam = array_map(function ($i) {
                 $i[2] = sprintf('"%s"', addslashes($i[2]));
                 return $i;
             }, $whereParam);
             $d->setAttribute(PO::ATTR_CONDITION, $whereParam);
         }
         return true;
     } else {
         return true;
     }
 }
require_once 'inheritance/iConnector.inter.php';
require_once 'inheritance/bConnector.class.php';
require_once 'inheritance/iConfig.inter.php';
// helper
require_once 'helper/ConnectorSelector.class.php';
require_once 'helper/ParameterObject.class.php';
require_once 'helper/SecureModeHelper.class.php';
$dObj = new ParameterObject($_POST['options']);
require_once 'config.class.inc.php';
// the point where the user config is loaded (removed dynamic path configuration from js for security reasons)
$desired_connector = $dObj->getAttribute(PO::ATTR_CONNECTOR);
$cs = new ConnectorSelector();
$connector = $cs->getConector($desired_connector);
// try to select the connector
// host, username, password, db
$authRes = $connector->authenticate(Config::getHost(), Config::getUsername(), Config::getPassword(), $dObj->getAttribute(PO::ATTR_DATABASE_NAME));
$checkRes = SecureModeHelper::checkTable($dObj->getAttribute(PO::ATTR_TABLE), $dObj);
if (is_numeric($checkRes)) {
    // we are returned a string in valid case or an int in failure case
    $data = array('success' => false);
    if ($checkRes === SecureModeHelper::FAILURE_TABLE_INVALID) {
        $data['error_str'] = 'You tried to us a table which is not on the whitelist due Secure Mode. Disable Secure Mode or add ' . $dObj->getAttribute(PO::ATTR_TABLE) . ' to the list of allowed tables';
    } elseif ($checkRes === SecureModeHelper::FAILURE_FIELD_INVALID) {
        $data['error_str'] = 'You tried to us a table field which is not on the whitelist due Secure Mode. Disable Secure Mode or add all desired fields to the list of allowed fields';
    } elseif ($checkRes === SecureModeHelper::FAILURE_DB_INVALID) {
        $data['error_str'] = 'You tried to select a DB which is not on the whitelist due Secure Mode. Disable Secure Mode or add ' . $dObj->getAttribute(PO::ATTR_DATABASE_NAME) . ' to the list of allowed DBs';
    }
} elseif (!is_numeric($dObj->getAttribute(PO::ATTR_ELEMENTS_PER_PAGE))) {
    $data = array('success' => false, 'error_str' => 'You configured Elements-PerPage failed the Security rules');
} elseif (!is_numeric($dObj->getAttribute(PO::ATTR_PAGE)) && !is_null($dObj->getAttribute(PO::ATTR_PAGE))) {
    $data = array('success' => false, 'error_str' => 'You desired page failed the Security rules');