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<?php
namespace Laminas\Db\Adapter\Driver\Mysqli;
use Exception as GenericException;
use Laminas\Db\Adapter\Driver\AbstractConnection;
use Laminas\Db\Adapter\Exception;
use Laminas\Db\Adapter\Exception\InvalidArgumentException;
use function constant;
use function defined;
use function is_array;
use function is_string;
use function strtoupper;
use const MYSQLI_CLIENT_SSL;
use const MYSQLI_CLIENT_SSL_DONT_VERIFY_SERVER_CERT;
class Connection extends AbstractConnection
{
/** @var Mysqli */
protected $driver;
/** @var \mysqli */
protected $resource;
/**
* Constructor
*
* @param array|\mysqli|null $connectionInfo
* @throws InvalidArgumentException
*/
public function __construct($connectionInfo = null)
{
if (is_array($connectionInfo)) {
$this->setConnectionParameters($connectionInfo);
} elseif ($connectionInfo instanceof \mysqli) {
$this->setResource($connectionInfo);
} elseif (null !== $connectionInfo) {
throw new Exception\InvalidArgumentException(
'$connection must be an array of parameters, a mysqli object or null'
);
}
}
/**
* @return $this Provides a fluent interface
*/
public function setDriver(Mysqli $driver)
{
$this->driver = $driver;
return $this;
}
/**
* {@inheritDoc}
*/
public function getCurrentSchema()
{
if (! $this->isConnected()) {
$this->connect();
}
$result = $this->resource->query('SELECT DATABASE()');
$r = $result->fetch_row();
return $r[0];
}
/**
* Set resource
*
* @return $this Provides a fluent interface
*/
public function setResource(\mysqli $resource)
{
$this->resource = $resource;
return $this;
}
/**
* {@inheritDoc}
*/
public function connect()
{
if ($this->resource instanceof \mysqli) {
return $this;
}
// localize
$p = $this->connectionParameters;
// given a list of key names, test for existence in $p
$findParameterValue = function (array $names) use ($p) {
foreach ($names as $name) {
if (isset($p[$name])) {
return $p[$name];
}
}
return;
};
$hostname = $findParameterValue(['hostname', 'host']);
$username = $findParameterValue(['username', 'user']);
$password = $findParameterValue(['password', 'passwd', 'pw']);
$database = $findParameterValue(['database', 'dbname', 'db', 'schema']);
$port = isset($p['port']) ? (int) $p['port'] : null;
$socket = $p['socket'] ?? null;
// phpcs:ignore WebimpressCodingStandard.NamingConventions.ValidVariableName.NotCamelCaps
$useSSL = $p['use_ssl'] ?? 0;
$clientKey = $p['client_key'] ?? '';
$clientCert = $p['client_cert'] ?? '';
$caCert = $p['ca_cert'] ?? '';
$caPath = $p['ca_path'] ?? '';
$cipher = $p['cipher'] ?? '';
$this->resource = $this->createResource();
if (! empty($p['driver_options'])) {
foreach ($p['driver_options'] as $option => $value) {
if (is_string($option)) {
$option = strtoupper($option);
if (! defined($option)) {
continue;
}
$option = constant($option);
}
$this->resource->options($option, $value);
}
}
$flags = null;
// phpcs:ignore WebimpressCodingStandard.NamingConventions.ValidVariableName.NotCamelCaps
if ($useSSL && ! $socket) {
// Even though mysqli docs are not quite clear on this, MYSQLI_CLIENT_SSL
// needs to be set to make sure SSL is used. ssl_set can also cause it to
// be implicitly set, but only when any of the parameters is non-empty.
$flags = MYSQLI_CLIENT_SSL;
$this->resource->ssl_set($clientKey, $clientCert, $caCert, $caPath, $cipher);
//MYSQLI_CLIENT_SSL_DONT_VERIFY_SERVER_CERT is not valid option, needs to be set as flag
if (
isset($p['driver_options'])
&& isset($p['driver_options'][MYSQLI_CLIENT_SSL_DONT_VERIFY_SERVER_CERT])
) {
$flags |= MYSQLI_CLIENT_SSL_DONT_VERIFY_SERVER_CERT;
}
}
try {
$flags === null
? $this->resource->real_connect($hostname, $username, $password, $database, $port, $socket)
: $this->resource->real_connect($hostname, $username, $password, $database, $port, $socket, $flags);
} catch (GenericException $e) {
throw new Exception\RuntimeException(
'Connection error',
$this->resource->connect_errno,
new Exception\ErrorException($this->resource->connect_error, $this->resource->connect_errno)
);
}
if ($this->resource->connect_error) {
throw new Exception\RuntimeException(
'Connection error',
$this->resource->connect_errno,
new Exception\ErrorException($this->resource->connect_error, $this->resource->connect_errno)
);
}
if (! empty($p['charset'])) {
$this->resource->set_charset($p['charset']);
}
return $this;
}
/**
* {@inheritDoc}
*/
public function isConnected()
{
return $this->resource instanceof \mysqli;
}
/**
* {@inheritDoc}
*/
public function disconnect()
{
if ($this->resource instanceof \mysqli) {
$this->resource->close();
}
$this->resource = null;
}
/**
* {@inheritDoc}
*/
public function beginTransaction()
{
if (! $this->isConnected()) {
$this->connect();
}
$this->resource->autocommit(false);
$this->inTransaction = true;
return $this;
}
/**
* {@inheritDoc}
*/
public function commit()
{
if (! $this->isConnected()) {
$this->connect();
}
$this->resource->commit();
$this->inTransaction = false;
$this->resource->autocommit(true);
return $this;
}
/**
* {@inheritDoc}
*/
public function rollback()
{
if (! $this->isConnected()) {
throw new Exception\RuntimeException('Must be connected before you can rollback.');
}
if (! $this->inTransaction) {
throw new Exception\RuntimeException('Must call beginTransaction() before you can rollback.');
}
$this->resource->rollback();
$this->resource->autocommit(true);
$this->inTransaction = false;
return $this;
}
/**
* {@inheritDoc}
*
* @throws Exception\InvalidQueryException
*/
public function execute($sql)
{
if (! $this->isConnected()) {
$this->connect();
}
if ($this->profiler) {
$this->profiler->profilerStart($sql);
}
$resultResource = $this->resource->query($sql);
if ($this->profiler) {
$this->profiler->profilerFinish($sql);
}
// if the returnValue is something other than a mysqli_result, bypass wrapping it
if ($resultResource === false) {
throw new Exception\InvalidQueryException($this->resource->error);
}
return $this->driver->createResult($resultResource === true ? $this->resource : $resultResource);
}
/**
* {@inheritDoc}
*/
public function getLastGeneratedValue($name = null)
{
return $this->resource->insert_id;
}
/**
* Create a new mysqli resource
*
* @return \mysqli
*/
protected function createResource()
{
return new \mysqli();
}
}