<?php
/**
*
* This file is part of the phpBB Forum Software package.
*
* @copyright (c) phpBB Limited <https://www.phpbb.com>
* @license GNU General Public License, version 2 (GPL-2.0)
*
* For full copyright and license information, please see
* the docs/CREDITS.txt file.
*
*/
namespace phpbb\db\migration\data\v310;
class passwords_convert_p1 extends \phpbb\db\migration\migration
{
static public function depends_on()
{
return array('\phpbb\db\migration\data\v310\passwords_p2');
}
public function update_data()
{
return array(
array('custom', array(array($this, 'update_passwords'))),
);
}
/**
* Update passwords with convert flag to have $CP$ prefix
*
* @param int $start Limit start value
* @return int|void Null if conversion is finished, next start value if not
*/
public function update_passwords($start)
{
// Nothing to do if user_pass_convert column doesn't exist
if (!$this->db_tools->sql_column_exists($this->table_prefix . 'users', 'user_pass_convert'))
{
return;
}
$start = (int) $start;
$limit = 1000;
$converted_users = 0;
$sql = 'SELECT user_password, user_id
FROM ' . $this->table_prefix . 'users
WHERE user_pass_convert = 1
ORDER BY user_id';
$result = $this->db->sql_query_limit($sql, $limit, $start);
$update_users = array();
while ($row = $this->db->sql_fetchrow($result))
{
$converted_users++;
$user_id = (int) $row['user_id'];
// Prefix all passwords that need to be converted
if (!isset($update_users[$user_id]))
{
// Use $CP$ prefix for passwords that need to
// be converted and set pass convert to false.
$update_users[$user_id] = '$CP$' . $row['user_password'];
}
}
$this->db->sql_freeresult($result);
foreach ($update_users as $user_id => $user_password)
{
$sql = 'UPDATE ' . $this->table_prefix . "users
SET user_password = '" . $this->db->sql_escape($user_password) . "'
WHERE user_id = $user_id";
$this->sql_query($sql);
}
if ($converted_users < $limit)
{
// There are no more users to be converted
return;
}
// There are still more users to query, return the next start value
return $start + $limit;
}
}