<?php
/*******************************************************************************
 * Copyright (C) 2007 Easter-eggs
 * https://ldapsaisie.org
 *
 * Author: See AUTHORS file in top-level directory.
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License version 2
 * as published by the Free Software Foundation.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.

******************************************************************************/

/**
 * Règle de validation : taille d'un fichier
 *
 * @author Benjamin Renard <brenard@easter-eggs.com>
 */
class LSformRule_filesize extends LSformRule {

  // CLI parameters autocompleters
  protected static $cli_params_autocompleters = array(
    'minSize' => array('LScli', 'autocomplete_int'),
    'maxSize' => array('LScli', 'autocomplete_int'),
  );

  /**
   * Validate form element value
   *
   * @param mixed $value The value to validate
   * @param array $options Validation options:
   *                              - Max size (in byte) : $options['params']['maxSize']
   *                              - Min size (in byte) : $options['params']['minSize']
   * @param LSformElement &$formElement The related LSformElement object
   *
   * @return boolean True if value is valid, False otherwise
   */
  public static function validate($value, $options, &$formElement) {
    // According to PHP doc, strlen() returns the number of bytes rather
    // than the number of characters in a string.
    // See: https://www.php.net/manual/en/function.strlen.php
    $size = strlen($value);

    $maxSize = LSconfig :: get('params.maxSize', null, 'int', $options);
    if (is_int($maxSize) && $size > $maxSize)
      throw new LSformRuleException(_('File is too big.'));

    $minSize = LSconfig :: get('params.minSize', null, 'int', $options);
    if (is_int($minSize) && $size < $minSize)
      throw new LSformRuleException(_('File is too light.'));

    return true;
  }

}