684 lines
20 KiB
PHP
684 lines
20 KiB
PHP
<?php
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/**
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* Interface to the MySQL Improved extension (MySQLi)
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*/
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declare(strict_types=1);
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namespace PhpMyAdmin\Dbal;
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use mysqli;
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use mysqli_result;
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use mysqli_stmt;
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use PhpMyAdmin\DatabaseInterface;
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use PhpMyAdmin\Query\Utilities;
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use stdClass;
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use function mysqli_report;
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use const E_USER_WARNING;
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use const MYSQLI_ASSOC;
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use const MYSQLI_AUTO_INCREMENT_FLAG;
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use const MYSQLI_BLOB_FLAG;
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use const MYSQLI_BOTH;
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use const MYSQLI_CLIENT_COMPRESS;
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use const MYSQLI_CLIENT_SSL;
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use const MYSQLI_CLIENT_SSL_DONT_VERIFY_SERVER_CERT;
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use const MYSQLI_ENUM_FLAG;
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use const MYSQLI_MULTIPLE_KEY_FLAG;
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use const MYSQLI_NOT_NULL_FLAG;
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use const MYSQLI_NUM;
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use const MYSQLI_NUM_FLAG;
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use const MYSQLI_OPT_LOCAL_INFILE;
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use const MYSQLI_OPT_SSL_VERIFY_SERVER_CERT;
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use const MYSQLI_PART_KEY_FLAG;
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use const MYSQLI_PRI_KEY_FLAG;
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use const MYSQLI_REPORT_OFF;
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use const MYSQLI_SET_FLAG;
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use const MYSQLI_STORE_RESULT;
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use const MYSQLI_TIMESTAMP_FLAG;
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use const MYSQLI_TYPE_BIT;
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use const MYSQLI_TYPE_BLOB;
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use const MYSQLI_TYPE_DATE;
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use const MYSQLI_TYPE_DATETIME;
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use const MYSQLI_TYPE_DECIMAL;
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use const MYSQLI_TYPE_DOUBLE;
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use const MYSQLI_TYPE_ENUM;
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use const MYSQLI_TYPE_FLOAT;
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use const MYSQLI_TYPE_GEOMETRY;
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use const MYSQLI_TYPE_INT24;
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use const MYSQLI_TYPE_JSON;
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use const MYSQLI_TYPE_LONG;
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use const MYSQLI_TYPE_LONG_BLOB;
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use const MYSQLI_TYPE_LONGLONG;
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use const MYSQLI_TYPE_MEDIUM_BLOB;
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use const MYSQLI_TYPE_NEWDATE;
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use const MYSQLI_TYPE_NEWDECIMAL;
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use const MYSQLI_TYPE_NULL;
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use const MYSQLI_TYPE_SET;
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use const MYSQLI_TYPE_SHORT;
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use const MYSQLI_TYPE_STRING;
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use const MYSQLI_TYPE_TIME;
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use const MYSQLI_TYPE_TIMESTAMP;
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use const MYSQLI_TYPE_TINY;
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use const MYSQLI_TYPE_TINY_BLOB;
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use const MYSQLI_TYPE_VAR_STRING;
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use const MYSQLI_TYPE_YEAR;
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use const MYSQLI_UNIQUE_KEY_FLAG;
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use const MYSQLI_UNSIGNED_FLAG;
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use const MYSQLI_USE_RESULT;
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use const MYSQLI_ZEROFILL_FLAG;
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use function define;
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use function defined;
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use function implode;
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use function is_array;
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use function is_bool;
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use function mysqli_init;
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use function stripos;
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use function trigger_error;
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use const PHP_VERSION_ID;
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use function mysqli_get_client_info;
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/**
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* Interface to the MySQL Improved extension (MySQLi)
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*/
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class DbiMysqli implements DbiExtension
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{
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/** @var array */
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private static $flagNames = [
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MYSQLI_NUM_FLAG => 'num',
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MYSQLI_PART_KEY_FLAG => 'part_key',
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MYSQLI_SET_FLAG => 'set',
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MYSQLI_TIMESTAMP_FLAG => 'timestamp',
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MYSQLI_AUTO_INCREMENT_FLAG => 'auto_increment',
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MYSQLI_ENUM_FLAG => 'enum',
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MYSQLI_ZEROFILL_FLAG => 'zerofill',
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MYSQLI_UNSIGNED_FLAG => 'unsigned',
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MYSQLI_BLOB_FLAG => 'blob',
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MYSQLI_MULTIPLE_KEY_FLAG => 'multiple_key',
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MYSQLI_UNIQUE_KEY_FLAG => 'unique_key',
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MYSQLI_PRI_KEY_FLAG => 'primary_key',
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MYSQLI_NOT_NULL_FLAG => 'not_null',
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];
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/**
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* connects to the database server
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*
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* @param string $user mysql user name
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* @param string $password mysql user password
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* @param array $server host/port/socket/persistent
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*
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* @return mysqli|bool false on error or a mysqli object on success
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*/
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public function connect($user, $password, array $server)
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{
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if ($server) {
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$server['host'] = empty($server['host'])
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? 'localhost'
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: $server['host'];
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}
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mysqli_report(MYSQLI_REPORT_OFF);
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$mysqli = mysqli_init();
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$client_flags = 0;
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/* Optionally compress connection */
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if ($server['compress'] && defined('MYSQLI_CLIENT_COMPRESS')) {
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$client_flags |= MYSQLI_CLIENT_COMPRESS;
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}
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/* Optionally enable SSL */
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if ($server['ssl']) {
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$client_flags |= MYSQLI_CLIENT_SSL;
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if (! empty($server['ssl_key']) ||
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! empty($server['ssl_cert']) ||
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! empty($server['ssl_ca']) ||
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! empty($server['ssl_ca_path']) ||
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! empty($server['ssl_ciphers'])
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) {
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$mysqli->ssl_set(
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$server['ssl_key'] ?? '',
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$server['ssl_cert'] ?? '',
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$server['ssl_ca'] ?? '',
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$server['ssl_ca_path'] ?? '',
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$server['ssl_ciphers'] ?? ''
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);
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}
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/*
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* disables SSL certificate validation on mysqlnd for MySQL 5.6 or later
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* @link https://bugs.php.net/bug.php?id=68344
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* @link https://github.com/phpmyadmin/phpmyadmin/pull/11838
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*/
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if (! $server['ssl_verify']) {
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$mysqli->options(
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MYSQLI_OPT_SSL_VERIFY_SERVER_CERT,
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$server['ssl_verify']
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);
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$client_flags |= MYSQLI_CLIENT_SSL_DONT_VERIFY_SERVER_CERT;
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}
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}
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if ($GLOBALS['cfg']['PersistentConnections']) {
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$host = 'p:' . $server['host'];
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} else {
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$host = $server['host'];
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}
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$return_value = $mysqli->real_connect(
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$host,
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$user,
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$password,
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'',
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$server['port'],
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(string) $server['socket'],
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$client_flags
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);
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if ($return_value === false || $return_value === null) {
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/*
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* Switch to SSL if server asked us to do so, unfortunately
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* there are more ways MySQL server can tell this:
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*
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* - MySQL 8.0 and newer should return error 3159
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* - #2001 - SSL Connection is required. Please specify SSL options and retry.
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* - #9002 - SSL connection is required. Please specify SSL options and retry.
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*/
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$error_number = $mysqli->connect_errno;
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$error_message = $mysqli->connect_error;
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if (! $server['ssl']
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&& ($error_number == 3159
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|| (($error_number == 2001 || $error_number == 9002)
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&& stripos($error_message, 'SSL Connection is required') !== false))
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) {
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trigger_error(
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__('SSL connection enforced by server, automatically enabling it.'),
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E_USER_WARNING
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);
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$server['ssl'] = true;
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return self::connect($user, $password, $server);
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}
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return false;
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}
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if (defined('PMA_ENABLE_LDI')) {
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$mysqli->options(MYSQLI_OPT_LOCAL_INFILE, true);
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} else {
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$mysqli->options(MYSQLI_OPT_LOCAL_INFILE, false);
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}
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return $mysqli;
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}
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/**
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* selects given database
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*
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* @param string $databaseName database name to select
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* @param mysqli $mysqli the mysqli object
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*
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* @return bool
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*/
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public function selectDb($databaseName, $mysqli)
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{
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return $mysqli->select_db($databaseName);
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}
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/**
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* runs a query and returns the result
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*
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* @param string $query query to execute
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* @param mysqli $mysqli mysqli object
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* @param int $options query options
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*
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* @return mysqli_result|bool
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*/
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public function realQuery($query, $mysqli, $options)
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{
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if ($options == ($options | DatabaseInterface::QUERY_STORE)) {
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$method = MYSQLI_STORE_RESULT;
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} elseif ($options == ($options | DatabaseInterface::QUERY_UNBUFFERED)) {
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$method = MYSQLI_USE_RESULT;
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} else {
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$method = 0;
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}
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return $mysqli->query($query, $method);
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}
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/**
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* Run the multi query and output the results
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*
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* @param mysqli $mysqli mysqli object
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* @param string $query multi query statement to execute
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*
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* @return bool
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*/
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public function realMultiQuery($mysqli, $query)
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{
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return $mysqli->multi_query($query);
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}
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/**
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* returns array of rows with associative and numeric keys from $result
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*
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* @param mysqli_result $result result set identifier
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*/
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public function fetchArray($result): ?array
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{
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if (! $result instanceof mysqli_result) {
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return null;
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}
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return $result->fetch_array(MYSQLI_BOTH);
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}
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/**
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* returns array of rows with associative keys from $result
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*
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* @param mysqli_result $result result set identifier
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*/
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public function fetchAssoc($result): ?array
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{
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if (! $result instanceof mysqli_result) {
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return null;
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}
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return $result->fetch_array(MYSQLI_ASSOC);
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}
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/**
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* returns array of rows with numeric keys from $result
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*
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* @param mysqli_result $result result set identifier
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*/
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public function fetchRow($result): ?array
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{
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if (! $result instanceof mysqli_result) {
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return null;
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}
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return $result->fetch_array(MYSQLI_NUM);
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}
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/**
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* Adjusts the result pointer to an arbitrary row in the result
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*
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* @param mysqli_result $result database result
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* @param int $offset offset to seek
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*
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* @return bool true on success, false on failure
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*/
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public function dataSeek($result, $offset)
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{
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return $result->data_seek($offset);
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}
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/**
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* Frees memory associated with the result
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*
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* @param mysqli_result $result database result
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*
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* @return void
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*/
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public function freeResult($result)
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{
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if (! ($result instanceof mysqli_result)) {
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return;
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}
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$result->close();
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}
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/**
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* Check if there are any more query results from a multi query
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*
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* @param mysqli $mysqli the mysqli object
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*
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* @return bool true or false
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*/
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public function moreResults($mysqli)
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{
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return $mysqli->more_results();
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}
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/**
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* Prepare next result from multi_query
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*
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* @param mysqli $mysqli the mysqli object
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*
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* @return bool true or false
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*/
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public function nextResult($mysqli)
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{
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return $mysqli->next_result();
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}
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/**
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* Store the result returned from multi query
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*
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* @param mysqli $mysqli the mysqli object
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*
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* @return mysqli_result|bool false when empty results / result set when not empty
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*/
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public function storeResult($mysqli)
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{
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return $mysqli->store_result();
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}
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/**
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* Returns a string representing the type of connection used
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*
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* @param mysqli $mysqli mysql link
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*
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* @return string type of connection used
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*/
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public function getHostInfo($mysqli)
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{
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return $mysqli->host_info;
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}
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/**
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* Returns the version of the MySQL protocol used
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*
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* @param mysqli $mysqli mysql link
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*
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* @return string version of the MySQL protocol used
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*/
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public function getProtoInfo($mysqli)
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{
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return $mysqli->protocol_version;
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}
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/**
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* returns a string that represents the client library version
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*
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* @param mysqli $mysqli mysql link
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*
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* @return string MySQL client library version
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*/
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public function getClientInfo($mysqli)
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{
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// See: https://github.com/phpmyadmin/phpmyadmin/issues/16911
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if (PHP_VERSION_ID < 80100) {
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return $mysqli->get_client_info();
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}
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return mysqli_get_client_info();
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}
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/**
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* returns last error message or false if no errors occurred
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*
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* @param mysqli $mysqli mysql link
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*
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* @return string|bool error or false
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*/
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public function getError($mysqli)
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{
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$GLOBALS['errno'] = 0;
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if ($mysqli !== null && $mysqli !== false) {
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$error_number = $mysqli->errno;
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$error_message = $mysqli->error;
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} else {
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$error_number = $mysqli->connect_errno;
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$error_message = $mysqli->connect_error;
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}
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if ($error_number == 0) {
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return false;
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}
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// keep the error number for further check after
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// the call to getError()
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$GLOBALS['errno'] = $error_number;
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return Utilities::formatError($error_number, $error_message);
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}
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/**
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* returns the number of rows returned by last query
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*
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* @param mysqli_result $result result set identifier
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*
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* @return string|int
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*/
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public function numRows($result)
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{
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// see the note for tryQuery();
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if (is_bool($result)) {
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return 0;
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}
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return $result->num_rows;
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}
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/**
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* returns the number of rows affected by last query
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*
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* @param mysqli $mysqli the mysqli object
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*
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* @return int
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*/
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public function affectedRows($mysqli)
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{
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return $mysqli->affected_rows;
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}
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/**
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* returns meta info for fields in $result
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*
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* @param mysqli_result $result result set identifier
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*
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* @return array|bool meta info for fields in $result
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*/
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public function getFieldsMeta($result)
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{
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if (! $result instanceof mysqli_result) {
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return false;
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}
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// Issue #16043 - client API mysqlnd seem not to have MYSQLI_TYPE_JSON defined
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if (! defined('MYSQLI_TYPE_JSON')) {
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define('MYSQLI_TYPE_JSON', 245);
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}
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// Build an associative array for a type look up
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$typeAr = [];
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$typeAr[MYSQLI_TYPE_DECIMAL] = 'real';
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$typeAr[MYSQLI_TYPE_NEWDECIMAL] = 'real';
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$typeAr[MYSQLI_TYPE_BIT] = 'int';
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$typeAr[MYSQLI_TYPE_TINY] = 'int';
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$typeAr[MYSQLI_TYPE_SHORT] = 'int';
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$typeAr[MYSQLI_TYPE_LONG] = 'int';
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$typeAr[MYSQLI_TYPE_FLOAT] = 'real';
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$typeAr[MYSQLI_TYPE_DOUBLE] = 'real';
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$typeAr[MYSQLI_TYPE_NULL] = 'null';
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$typeAr[MYSQLI_TYPE_TIMESTAMP] = 'timestamp';
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$typeAr[MYSQLI_TYPE_LONGLONG] = 'int';
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$typeAr[MYSQLI_TYPE_INT24] = 'int';
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$typeAr[MYSQLI_TYPE_DATE] = 'date';
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$typeAr[MYSQLI_TYPE_TIME] = 'time';
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$typeAr[MYSQLI_TYPE_DATETIME] = 'datetime';
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$typeAr[MYSQLI_TYPE_YEAR] = 'year';
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$typeAr[MYSQLI_TYPE_NEWDATE] = 'date';
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$typeAr[MYSQLI_TYPE_ENUM] = 'unknown';
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$typeAr[MYSQLI_TYPE_SET] = 'unknown';
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$typeAr[MYSQLI_TYPE_TINY_BLOB] = 'blob';
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$typeAr[MYSQLI_TYPE_MEDIUM_BLOB] = 'blob';
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$typeAr[MYSQLI_TYPE_LONG_BLOB] = 'blob';
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$typeAr[MYSQLI_TYPE_BLOB] = 'blob';
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$typeAr[MYSQLI_TYPE_VAR_STRING] = 'string';
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$typeAr[MYSQLI_TYPE_STRING] = 'string';
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// MySQL returns MYSQLI_TYPE_STRING for CHAR
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// and MYSQLI_TYPE_CHAR === MYSQLI_TYPE_TINY
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// so this would override TINYINT and mark all TINYINT as string
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// see https://github.com/phpmyadmin/phpmyadmin/issues/8569
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//$typeAr[MYSQLI_TYPE_CHAR] = 'string';
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$typeAr[MYSQLI_TYPE_GEOMETRY] = 'geometry';
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$typeAr[MYSQLI_TYPE_BIT] = 'bit';
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$typeAr[MYSQLI_TYPE_JSON] = 'json';
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$fields = $result->fetch_fields();
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if (! is_array($fields)) {
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return false;
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}
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foreach ($fields as $k => $field) {
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$fields[$k]->_type = $field->type;
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$fields[$k]->type = $typeAr[$field->type];
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$fields[$k]->_flags = $field->flags;
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$fields[$k]->flags = $this->fieldFlags($result, $k);
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// Enhance the field objects for mysql-extension compatibility
|
|
//$flags = explode(' ', $fields[$k]->flags);
|
|
//array_unshift($flags, 'dummy');
|
|
$fields[$k]->multiple_key
|
|
= (int) (bool) ($fields[$k]->_flags & MYSQLI_MULTIPLE_KEY_FLAG);
|
|
$fields[$k]->primary_key
|
|
= (int) (bool) ($fields[$k]->_flags & MYSQLI_PRI_KEY_FLAG);
|
|
$fields[$k]->unique_key
|
|
= (int) (bool) ($fields[$k]->_flags & MYSQLI_UNIQUE_KEY_FLAG);
|
|
$fields[$k]->not_null
|
|
= (int) (bool) ($fields[$k]->_flags & MYSQLI_NOT_NULL_FLAG);
|
|
$fields[$k]->unsigned
|
|
= (int) (bool) ($fields[$k]->_flags & MYSQLI_UNSIGNED_FLAG);
|
|
$fields[$k]->zerofill
|
|
= (int) (bool) ($fields[$k]->_flags & MYSQLI_ZEROFILL_FLAG);
|
|
$fields[$k]->numeric
|
|
= (int) (bool) ($fields[$k]->_flags & MYSQLI_NUM_FLAG);
|
|
$fields[$k]->blob
|
|
= (int) (bool) ($fields[$k]->_flags & MYSQLI_BLOB_FLAG);
|
|
}
|
|
|
|
return $fields;
|
|
}
|
|
|
|
/**
|
|
* return number of fields in given $result
|
|
*
|
|
* @param mysqli_result $result result set identifier
|
|
*
|
|
* @return int field count
|
|
*/
|
|
public function numFields($result)
|
|
{
|
|
return $result->field_count;
|
|
}
|
|
|
|
/**
|
|
* returns the length of the given field $i in $result
|
|
*
|
|
* @param mysqli_result $result result set identifier
|
|
* @param int $i field
|
|
*
|
|
* @return int|bool length of field
|
|
*/
|
|
public function fieldLen($result, $i)
|
|
{
|
|
if ($i >= $this->numFields($result)) {
|
|
return false;
|
|
}
|
|
/** @var stdClass $fieldDefinition */
|
|
$fieldDefinition = $result->fetch_field_direct($i);
|
|
if ($fieldDefinition !== false) {
|
|
return $fieldDefinition->length;
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
/**
|
|
* returns name of $i. field in $result
|
|
*
|
|
* @param mysqli_result $result result set identifier
|
|
* @param int $i field
|
|
*
|
|
* @return string name of $i. field in $result
|
|
*/
|
|
public function fieldName($result, $i)
|
|
{
|
|
if ($i >= $this->numFields($result)) {
|
|
return '';
|
|
}
|
|
/** @var stdClass $fieldDefinition */
|
|
$fieldDefinition = $result->fetch_field_direct($i);
|
|
if ($fieldDefinition !== false) {
|
|
return $fieldDefinition->name;
|
|
}
|
|
|
|
return '';
|
|
}
|
|
|
|
/**
|
|
* returns concatenated string of human readable field flags
|
|
*
|
|
* @param mysqli_result $result result set identifier
|
|
* @param int $i field
|
|
*
|
|
* @return string|false field flags
|
|
*/
|
|
public function fieldFlags($result, $i)
|
|
{
|
|
if ($i >= $this->numFields($result)) {
|
|
return false;
|
|
}
|
|
/** @var stdClass|false $fieldDefinition */
|
|
$fieldDefinition = $result->fetch_field_direct($i);
|
|
if ($fieldDefinition === false) {
|
|
return '';
|
|
}
|
|
|
|
$type = $fieldDefinition->type;
|
|
$charsetNumber = $fieldDefinition->charsetnr;
|
|
$fieldDefinitionFlags = $fieldDefinition->flags;
|
|
$flags = [];
|
|
foreach (self::$flagNames as $flag => $name) {
|
|
if (! ($fieldDefinitionFlags & $flag)) {
|
|
continue;
|
|
}
|
|
|
|
$flags[] = $name;
|
|
}
|
|
// See https://dev.mysql.com/doc/refman/6.0/en/c-api-datatypes.html:
|
|
// to determine if a string is binary, we should not use MYSQLI_BINARY_FLAG
|
|
// but instead the charsetnr member of the MYSQL_FIELD
|
|
// structure. Watch out: some types like DATE returns 63 in charsetnr
|
|
// so we have to check also the type.
|
|
// Unfortunately there is no equivalent in the mysql extension.
|
|
if (($type == MYSQLI_TYPE_TINY_BLOB || $type == MYSQLI_TYPE_BLOB
|
|
|| $type == MYSQLI_TYPE_MEDIUM_BLOB || $type == MYSQLI_TYPE_LONG_BLOB
|
|
|| $type == MYSQLI_TYPE_VAR_STRING || $type == MYSQLI_TYPE_STRING)
|
|
&& $charsetNumber == 63
|
|
) {
|
|
$flags[] = 'binary';
|
|
}
|
|
|
|
return implode(' ', $flags);
|
|
}
|
|
|
|
/**
|
|
* returns properly escaped string for use in MySQL queries
|
|
*
|
|
* @param mysqli $mysqli database link
|
|
* @param string $string string to be escaped
|
|
*
|
|
* @return string a MySQL escaped string
|
|
*/
|
|
public function escapeString($mysqli, $string)
|
|
{
|
|
return $mysqli->real_escape_string($string);
|
|
}
|
|
|
|
/**
|
|
* Prepare an SQL statement for execution.
|
|
*
|
|
* @param mysqli $mysqli database link
|
|
* @param string $query The query, as a string.
|
|
*
|
|
* @return mysqli_stmt|false A statement object or false.
|
|
*/
|
|
public function prepare($mysqli, string $query)
|
|
{
|
|
return $mysqli->prepare($query);
|
|
}
|
|
}
|