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<?php
/*
* 2007-2016 PrestaShop
*
* NOTICE OF LICENSE
*
* This source file is subject to the Open Software License (OSL 3.0)
* that is bundled with this package in the file LICENSE.txt.
* It is also available through the world-wide-web at this URL:
* http://opensource.org/licenses/osl-3.0.php
* If you did not receive a copy of the license and are unable to
* obtain it through the world-wide-web, please send an email
* to license@prestashop.com so we can send you a copy immediately.
*
* DISCLAIMER
*
* Do not edit or add to this file if you wish to upgrade PrestaShop to newer
* versions in the future. If you wish to customize PrestaShop for your
* needs please refer to http://www.prestashop.com for more information.
*
* @author PrestaShop SA <contact@prestashop.com>
* @copyright 2007-2016 PrestaShop SA
* @license http://opensource.org/licenses/osl-3.0.php Open Software License (OSL 3.0)
* International Registered Trademark & Property of PrestaShop SA
*/
/**
* Class DbMySQLiCore
*
* @since 1.5.0,1
*/
class DbMySQLiCore extends Db
{
/** @var mysqli */
protected $link;
/* @var mysqli_result */
protected $result;
/**
* Tries to connect to the database
*
* @see DbCore::connect()
* @return mysqli
* @throws PrestaShopDatabaseException
*/
public function connect()
{
$socket = false;
$port = false;
if (Tools::strpos($this->server, ':') !== false) {
list($server, $port) = explode(':', $this->server);
if (is_numeric($port) === false) {
$socket = $port;
$port = false;
}
} elseif (Tools::strpos($this->server, '/') !== false) {
$socket = $this->server;
}
if ($socket) {
$this->link = @new mysqli(null, $this->user, $this->password, $this->database, null, $socket);
} elseif ($port) {
$this->link = @new mysqli($server, $this->user, $this->password, $this->database, $port);
} else {
$this->link = @new mysqli($this->server, $this->user, $this->password, $this->database);
}
// Do not use object way for error because this work bad before PHP 5.2.9
if (mysqli_connect_error()) {
throw new PrestaShopDatabaseException(sprintf(Tools::displayError('Link to database cannot be established: %s'), mysqli_connect_error()));
}
// UTF-8 support
if (!$this->link->query('SET NAMES \'utf8\'')) {
throw new PrestaShopDatabaseException(Tools::displayError('PrestaShop Fatal error: no utf-8 support. Please check your server configuration.'));
}
return $this->link;
}
/**
* Tries to connect and create a new database
*
* @param string $host
* @param string|null $user
* @param string|null $password
* @param string|null $database
* @param bool $dropit If true, drops the created database.
* @return bool|mysqli_result
*/
public static function createDatabase($host, $user = null, $password = null, $database = null, $dropit = false)
{
if (strpos($host, ':') !== false) {
list($host, $port) = explode(':', $host);
$link = @new mysqli($host, $user, $password, null, $port);
} else {
$link = @new mysqli($host, $user, $password);
}
$success = $link->query('CREATE DATABASE `'.str_replace('`', '\\`', $database).'`');
if ($dropit && ($link->query('DROP DATABASE `'.str_replace('`', '\\`', $database).'`') !== false)) {
return true;
}
return $success;
}
/**
* Destroys the database connection link
*
* @see DbCore::disconnect()
*/
public function disconnect()
{
@$this->link->close();
}
/**
* Executes an SQL statement, returning a result set as a mysqli_result object or true/false.
*
* @see DbCore::_query()
* @param string $sql
* @return bool|mysqli_result
*/
protected function _query($sql)
{
return $this->link->query($sql);
}
/**
* Returns the next row from the result set.
*
* @see DbCore::nextRow()
* @param bool|mysqli_result $result
* @return array|bool
*/
public function nextRow($result = false)
{
if (!$result) {
$result = $this->result;
}
if (!is_object($result)) {
return false;
}
return $result->fetch_assoc();
}
/**
* Returns all rows from the result set.
*
* @see DbCore::getAll()
* @param bool|mysqli_result $result
* @return array|false
*/
protected function getAll($result = false)
{
if (!$result) {
$result = $this->result;
}
if (!is_object($result)) {
return false;
}
if (method_exists($result, 'fetch_all')) {
return $result->fetch_all(MYSQLI_ASSOC);
} else {
$ret = array();
while ($row = $this->nextRow($result)) {
$ret[] = $row;
}
return $ret;
}
}
/**
* Returns row count from the result set.
*
* @see DbCore::_numRows()
* @param bool|mysqli_result $result
* @return int
*/
protected function _numRows($result)
{
return $result->num_rows;
}
/**
* Returns ID of the last inserted row.
*
* @see DbCore::Insert_ID()
* @return string|int
*/
public function Insert_ID()
{
return $this->link->insert_id;
}
/**
* Return the number of rows affected by the last SQL query.
*
* @see DbCore::Affected_Rows()
* @return int
*/
public function Affected_Rows()
{
return $this->link->affected_rows;
}
/**
* Returns error message.
*
* @see DbCore::getMsgError()
* @param bool $query
* @return string
*/
public function getMsgError($query = false)
{
return $this->link->error;
}
/**
* Returns error code.
*
* @see DbCore::getNumberError()
* @return int
*/
public function getNumberError()
{
return $this->link->errno;
}
/**
* Returns database server version.
*
* @see DbCore::getVersion()
* @return string
*/
public function getVersion()
{
return $this->getValue('SELECT VERSION()');
}
/**
* Escapes illegal characters in a string.
*
* @see DbCore::_escape()
* @param string $str
* @return string
*/
public function _escape($str)
{
return $this->link->real_escape_string($str);
}
/**
* Switches to a different database.
*
* @see DbCore::set_db()
* @param string $db_name
* @return bool
*/
public function set_db($db_name)
{
return $this->link->query('USE `'.bqSQL($db_name).'`');
}
/**
* Try a connection to the database and check if at least one table with same prefix exists
*
* @see Db::hasTableWithSamePrefix()
* @param string $server Server address
* @param string $user Login for database connection
* @param string $pwd Password for database connection
* @param string $db Database name
* @param string $prefix Tables prefix
* @return bool
*/
public static function hasTableWithSamePrefix($server, $user, $pwd, $db, $prefix)
{
$link = @new mysqli($server, $user, $pwd, $db);
if (mysqli_connect_error()) {
return false;
}
$sql = 'SHOW TABLES LIKE \''.$prefix.'%\'';
$result = $link->query($sql);
return (bool)$result->fetch_assoc();
}
/**
* Try a connection to the database
*
* @see Db::checkConnection()
* @param string $server Server address
* @param string $user Login for database connection
* @param string $pwd Password for database connection
* @param string $db Database name
* @param bool $newDbLink
* @param string|bool $engine
* @param int $timeout
* @return int Error code or 0 if connection was successful
*/
public static function tryToConnect($server, $user, $pwd, $db, $new_db_link = true, $engine = null, $timeout = 5)
{
$link = mysqli_init();
if (!$link) {
return -1;
}
if (!$link->options(MYSQLI_OPT_CONNECT_TIMEOUT, $timeout)) {
return 1;
}
// There is an @ because mysqli throw a warning when the database does not exists
if (!@$link->real_connect($server, $user, $pwd, $db)) {
return (mysqli_connect_errno() == 1049) ? 2 : 1;
}
$link->close();
return 0;
}
/**
* Selects best table engine.
*
* @return string
*/
public function getBestEngine()
{
$value = 'InnoDB';
$sql = 'SHOW VARIABLES WHERE Variable_name = \'have_innodb\'';
$result = $this->link->query($sql);
if (!$result) {
$value = 'MyISAM';
}
$row = $result->fetch_assoc();
if (!$row || strtolower($row['Value']) != 'yes') {
$value = 'MyISAM';
}
/* MySQL >= 5.6 */
$sql = 'SHOW ENGINES';
$result = $this->link->query($sql);
while ($row = $result->fetch_assoc()) {
if ($row['Engine'] == 'InnoDB') {
if (in_array($row['Support'], array('DEFAULT', 'YES'))) {
$value = 'InnoDB';
}
break;
}
}
return $value;
}
/**
* Tries to connect to the database and create a table (checking creation privileges)
*
* @param string $server
* @param string $user
* @param string $pwd
* @param string $db
* @param string $prefix
* @param string|null $engine Table engine
* @return bool|string True, false or error
*/
public static function checkCreatePrivilege($server, $user, $pwd, $db, $prefix, $engine = null)
{
$link = @new mysqli($server, $user, $pwd, $db);
if (mysqli_connect_error()) {
return false;
}
if ($engine === null) {
$engine = 'MyISAM';
}
$result = $link->query('
CREATE TABLE `'.$prefix.'test` (
`test` tinyint(1) unsigned NOT NULL
) ENGINE='.$engine);
if (!$result) {
return $link->error;
}
$link->query('DROP TABLE `'.$prefix.'test`');
return true;
}
/**
* Try a connection to the database and set names to UTF-8
*
* @see Db::checkEncoding()
* @param string $server Server address
* @param string $user Login for database connection
* @param string $pwd Password for database connection
* @return bool
*/
public static function tryUTF8($server, $user, $pwd)
{
$link = @new mysqli($server, $user, $pwd);
$ret = $link->query("SET NAMES 'UTF8'");
$link->close();
return $ret;
}
/**
* Checks if auto increment value and offset is 1
*
* @param string $server
* @param string $user
* @param string $pwd
* @return bool
*/
public static function checkAutoIncrement($server, $user, $pwd)
{
$link = @new mysqli($server, $user, $pwd);
$ret = (bool)(($result = $link->query('SELECT @@auto_increment_increment as aii')) && ($row = $result->fetch_assoc()) && $row['aii'] == 1);
$ret &= (bool)(($result = $link->query('SELECT @@auto_increment_offset as aio')) && ($row = $result->fetch_assoc()) && $row['aio'] == 1);
$link->close();
return $ret;
}
}
Zerion Mini Shell 1.0