<?php /*

 Composr
 Copyright (c) ocProducts, 2004-2016

 See text/EN/licence.txt for full licencing information.


 NOTE TO PROGRAMMERS:
   Do not edit this file. If you need to make changes, save your changed file to the appropriate *_custom folder
   **** If you ignore this advice, then your website upgrades (e.g. for bug fixes) will likely kill your changes ****

*/

/**
 * @license    http://opensource.org/licenses/cpal_1.0 Common Public Attribution License
 * @copyright  ocProducts Ltd
 * @package    commandr
 */

/**
 * Hook class.
 */
class Hook_commandr_command_obfuscate_directory
{
    /**
     * Run function for Commandr hooks.
     *
     * @param  array $options The options with which the command was called
     * @param  array $parameters The parameters with which the command was called
     * @param  object $commandr_fs A reference to the Commandr filesystem object
     * @return array Array of stdcommand, stdhtml, stdout, and stderr responses
     */
    public function run($options, $parameters, &$commandr_fs)
    {
        if ((array_key_exists('h', $options)) || (array_key_exists('help', $options))) {
            return array('', do_command_help('obfuscate_directory', array('h'), array(true, true)), '', '');
        } else {
            if (empty($parameters[0])) {
                return array('', '', '', do_lang('MISSING_PARAM', '1', 'obfuscate_directory'));
            }

            $dir = $parameters[0];
            if (substr($dir, -1) == '/') {
                $dir = substr($dir, 0, strlen($dir) - 1);
            }
            $root_path = get_custom_file_base() . '/' . $dir;

            if (!is_dir($root_path)) {
                return array('', '', '', do_lang('NOT_A_DIR', '1'));
            }

            $ext_too = (array_key_exists(1, $parameters)) && ($parameters[1] == '1');

            $_upload_fields = $GLOBALS['SITE_DB']->query_select('db_meta', array('m_table', 'm_name'), array('m_type' => 'URLPATH'));
            $upload_fields = array();
            foreach ($_upload_fields as $field) {
                $sup = ' AND ' . $field['m_name'] . ' LIKE \'' . db_encode_like($dir . '/%') . '\'';
                $has_our_files = $GLOBALS['SITE_DB']->query_select_value_if_there($field['m_table'], $field['m_name'], array(), $sup);
                if ($has_our_files !== null) {
                    $upload_fields[] = $field;
                }
            }

            require_code('files2');
            $files = get_directory_contents($root_path);
            foreach ($files as $path) {
                $regexp_ext = 'bin|dat';
                if ($ext_too) {
                    $regexp_ext .= '|\w+';
                }
                if (preg_match('#^[\da-f]{14}.\d{8}\.(' . $regexp_ext . ')$#', basename($path)) != 0) { // LEGACY: .dat
                    continue; // Already obfuscated
                }

                $ext = get_file_extension($path);
                if ($ext == '') {
                    continue;
                }

                do {
                    $obfuscated_filename_stub = uniqid('', true);
                    if ($ext_too) {
                        $obfuscated_filename = $obfuscated_filename_stub . '.bin';
                    } else {
                        $obfuscated_filename = $obfuscated_filename_stub . '.' . $ext;
                    }

                    $full_path = get_custom_file_base() . '/' . $dir . '/' . $path;
                    $obfuscated_full_path = dirname($full_path) . '/' . $obfuscated_filename;
                } while (file_exists($obfuscated_full_path));

                $url = str_replace('%2F', '/', rawurlencode($dir . '/' . $path));
                $obfuscated_url = str_replace('%2F', '/', rawurlencode(dirname($dir . '/' . $path) . '/' . $obfuscated_filename));

                $upload_fields_for_file = array();
                foreach ($upload_fields as $field) {
                    $test = $GLOBALS['SITE_DB']->query_select_value_if_there($field['m_table'], $field['m_name'], array($field['m_name'] => $url));
                    if ($test !== null) {
                        $upload_fields_for_file[] = $field;
                    }
                }
                if (!empty($upload_fields_for_file)) {
                    $success = rename($full_path, $obfuscated_full_path);
                    if ($success) {
                        foreach ($upload_fields_for_file as $field) {
                            $GLOBALS['SITE_DB']->query_update($field['m_table'], array($field['m_name'] => $obfuscated_url), array($field['m_name'] => $url));
                        }
                    }
                }
            }

            return array('', '', do_lang('SUCCESS'), '');
        }
    }
}
