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<?php
/*
* This file is part of the Symfony package.
*
* (c) Fabien Potencier <fabien@symfony.com>
*
* For the full copyright and license information, please view the LICENSE
* file that was distributed with this source code.
*/
namespace Symfony\Component\Cache\Adapter;
use Doctrine\DBAL\Connection;
use Doctrine\DBAL\Driver\ServerInfoAwareConnection;
use Doctrine\DBAL\DriverManager;
use Doctrine\DBAL\Exception as DBALException;
use Doctrine\DBAL\Exception\TableNotFoundException;
use Doctrine\DBAL\ParameterType;
use Doctrine\DBAL\Schema\Schema;
use Symfony\Component\Cache\Exception\InvalidArgumentException;
use Symfony\Component\Cache\Marshaller\DefaultMarshaller;
use Symfony\Component\Cache\Marshaller\MarshallerInterface;
use Symfony\Component\Cache\PruneableInterface;
class DoctrineDbalAdapter extends AbstractAdapter implements PruneableInterface
{
protected $maxIdLength = 255;
private $marshaller;
private $conn;
private $platformName;
private $serverVersion;
private $table = 'cache_items';
private $idCol = 'item_id';
private $dataCol = 'item_data';
private $lifetimeCol = 'item_lifetime';
private $timeCol = 'item_time';
private $namespace;
/**
* You can either pass an existing database Doctrine DBAL Connection or
* a DSN string that will be used to connect to the database.
*
* The cache table is created automatically when possible.
* Otherwise, use the createTable() method.
*
* List of available options:
* * db_table: The name of the table [default: cache_items]
* * db_id_col: The column where to store the cache id [default: item_id]
* * db_data_col: The column where to store the cache data [default: item_data]
* * db_lifetime_col: The column where to store the lifetime [default: item_lifetime]
* * db_time_col: The column where to store the timestamp [default: item_time]
*
* @param Connection|string $connOrDsn
*
* @throws InvalidArgumentException When namespace contains invalid characters
*/
public function __construct($connOrDsn, string $namespace = '', int $defaultLifetime = 0, array $options = [], MarshallerInterface $marshaller = null)
{
if (isset($namespace[0]) && preg_match('#[^-+.A-Za-z0-9]#', $namespace, $match)) {
throw new InvalidArgumentException(sprintf('Namespace contains "%s" but only characters in [-+.A-Za-z0-9] are allowed.', $match[0]));
}
if ($connOrDsn instanceof Connection) {
$this->conn = $connOrDsn;
} elseif (\is_string($connOrDsn)) {
if (!class_exists(DriverManager::class)) {
throw new InvalidArgumentException(sprintf('Failed to parse the DSN "%s". Try running "composer require doctrine/dbal".', $connOrDsn));
}
$this->conn = DriverManager::getConnection(['url' => $connOrDsn]);
} else {
throw new \TypeError(sprintf('Argument 1 passed to "%s()" must be "%s" or string, "%s" given.', __METHOD__, Connection::class, get_debug_type($connOrDsn)));
}
$this->table = $options['db_table'] ?? $this->table;
$this->idCol = $options['db_id_col'] ?? $this->idCol;
$this->dataCol = $options['db_data_col'] ?? $this->dataCol;
$this->lifetimeCol = $options['db_lifetime_col'] ?? $this->lifetimeCol;
$this->timeCol = $options['db_time_col'] ?? $this->timeCol;
$this->namespace = $namespace;
$this->marshaller = $marshaller ?? new DefaultMarshaller();
parent::__construct($namespace, $defaultLifetime);
}
/**
* Creates the table to store cache items which can be called once for setup.
*
* Cache ID are saved in a column of maximum length 255. Cache data is
* saved in a BLOB.
*
* @throws DBALException When the table already exists
*/
public function createTable()
{
$schema = new Schema();
$this->addTableToSchema($schema);
foreach ($schema->toSql($this->conn->getDatabasePlatform()) as $sql) {
$this->conn->executeStatement($sql);
}
}
/**
* {@inheritdoc}
*/
public function configureSchema(Schema $schema, Connection $forConnection): void
{
// only update the schema for this connection
if ($forConnection !== $this->conn) {
return;
}
if ($schema->hasTable($this->table)) {
return;
}
$this->addTableToSchema($schema);
}
/**
* {@inheritdoc}
*/
public function prune(): bool
{
$deleteSql = "DELETE FROM $this->table WHERE $this->lifetimeCol + $this->timeCol <= ?";
$params = [time()];
$paramTypes = [ParameterType::INTEGER];
if ('' !== $this->namespace) {
$deleteSql .= " AND $this->idCol LIKE ?";
$params[] = sprintf('%s%%', $this->namespace);
$paramTypes[] = ParameterType::STRING;
}
try {
$this->conn->executeStatement($deleteSql, $params, $paramTypes);
} catch (TableNotFoundException $e) {
}
return true;
}
/**
* {@inheritdoc}
*/
protected function doFetch(array $ids): iterable
{
$now = time();
$expired = [];
$sql = "SELECT $this->idCol, CASE WHEN $this->lifetimeCol IS NULL OR $this->lifetimeCol + $this->timeCol > ? THEN $this->dataCol ELSE NULL END FROM $this->table WHERE $this->idCol IN (?)";
$result = $this->conn->executeQuery($sql, [
$now,
$ids,
], [
ParameterType::INTEGER,
Connection::PARAM_STR_ARRAY,
])->iterateNumeric();
foreach ($result as $row) {
if (null === $row[1]) {
$expired[] = $row[0];
} else {
yield $row[0] => $this->marshaller->unmarshall(\is_resource($row[1]) ? stream_get_contents($row[1]) : $row[1]);
}
}
if ($expired) {
$sql = "DELETE FROM $this->table WHERE $this->lifetimeCol + $this->timeCol <= ? AND $this->idCol IN (?)";
$this->conn->executeStatement($sql, [
$now,
$expired,
], [
ParameterType::INTEGER,
Connection::PARAM_STR_ARRAY,
]);
}
}
/**
* {@inheritdoc}
*/
protected function doHave(string $id): bool
{
$sql = "SELECT 1 FROM $this->table WHERE $this->idCol = ? AND ($this->lifetimeCol IS NULL OR $this->lifetimeCol + $this->timeCol > ?)";
$result = $this->conn->executeQuery($sql, [
$id,
time(),
], [
ParameterType::STRING,
ParameterType::INTEGER,
]);
return (bool) $result->fetchOne();
}
/**
* {@inheritdoc}
*/
protected function doClear(string $namespace): bool
{
if ('' === $namespace) {
if ('sqlite' === $this->getPlatformName()) {
$sql = "DELETE FROM $this->table";
} else {
$sql = "TRUNCATE TABLE $this->table";
}
} else {
$sql = "DELETE FROM $this->table WHERE $this->idCol LIKE '$namespace%'";
}
try {
$this->conn->executeStatement($sql);
} catch (TableNotFoundException $e) {
}
return true;
}
/**
* {@inheritdoc}
*/
protected function doDelete(array $ids): bool
{
$sql = "DELETE FROM $this->table WHERE $this->idCol IN (?)";
try {
$this->conn->executeStatement($sql, [array_values($ids)], [Connection::PARAM_STR_ARRAY]);
} catch (TableNotFoundException $e) {
}
return true;
}
/**
* {@inheritdoc}
*/
protected function doSave(array $values, int $lifetime)
{
if (!$values = $this->marshaller->marshall($values, $failed)) {
return $failed;
}
$platformName = $this->getPlatformName();
$insertSql = "INSERT INTO $this->table ($this->idCol, $this->dataCol, $this->lifetimeCol, $this->timeCol) VALUES (?, ?, ?, ?)";
switch (true) {
case 'mysql' === $platformName:
$sql = $insertSql." ON DUPLICATE KEY UPDATE $this->dataCol = VALUES($this->dataCol), $this->lifetimeCol = VALUES($this->lifetimeCol), $this->timeCol = VALUES($this->timeCol)";
break;
case 'oci' === $platformName:
// DUAL is Oracle specific dummy table
$sql = "MERGE INTO $this->table USING DUAL ON ($this->idCol = ?) ".
"WHEN NOT MATCHED THEN INSERT ($this->idCol, $this->dataCol, $this->lifetimeCol, $this->timeCol) VALUES (?, ?, ?, ?) ".
"WHEN MATCHED THEN UPDATE SET $this->dataCol = ?, $this->lifetimeCol = ?, $this->timeCol = ?";
break;
case 'sqlsrv' === $platformName && version_compare($this->getServerVersion(), '10', '>='):
// MERGE is only available since SQL Server 2008 and must be terminated by semicolon
// It also requires HOLDLOCK according to http://weblogs.sqlteam.com/dang/archive/2009/01/31/UPSERT-Race-Condition-With-MERGE.aspx
$sql = "MERGE INTO $this->table WITH (HOLDLOCK) USING (SELECT 1 AS dummy) AS src ON ($this->idCol = ?) ".
"WHEN NOT MATCHED THEN INSERT ($this->idCol, $this->dataCol, $this->lifetimeCol, $this->timeCol) VALUES (?, ?, ?, ?) ".
"WHEN MATCHED THEN UPDATE SET $this->dataCol = ?, $this->lifetimeCol = ?, $this->timeCol = ?;";
break;
case 'sqlite' === $platformName:
$sql = 'INSERT OR REPLACE'.substr($insertSql, 6);
break;
case 'pgsql' === $platformName && version_compare($this->getServerVersion(), '9.5', '>='):
$sql = $insertSql." ON CONFLICT ($this->idCol) DO UPDATE SET ($this->dataCol, $this->lifetimeCol, $this->timeCol) = (EXCLUDED.$this->dataCol, EXCLUDED.$this->lifetimeCol, EXCLUDED.$this->timeCol)";
break;
default:
$platformName = null;
$sql = "UPDATE $this->table SET $this->dataCol = ?, $this->lifetimeCol = ?, $this->timeCol = ? WHERE $this->idCol = ?";
break;
}
$now = time();
$lifetime = $lifetime ?: null;
try {
$stmt = $this->conn->prepare($sql);
} catch (TableNotFoundException $e) {
if (!$this->conn->isTransactionActive() || \in_array($platformName, ['pgsql', 'sqlite', 'sqlsrv'], true)) {
$this->createTable();
}
$stmt = $this->conn->prepare($sql);
}
// $id and $data are defined later in the loop. Binding is done by reference, values are read on execution.
if ('sqlsrv' === $platformName || 'oci' === $platformName) {
$stmt->bindParam(1, $id);
$stmt->bindParam(2, $id);
$stmt->bindParam(3, $data, ParameterType::LARGE_OBJECT);
$stmt->bindValue(4, $lifetime, ParameterType::INTEGER);
$stmt->bindValue(5, $now, ParameterType::INTEGER);
$stmt->bindParam(6, $data, ParameterType::LARGE_OBJECT);
$stmt->bindValue(7, $lifetime, ParameterType::INTEGER);
$stmt->bindValue(8, $now, ParameterType::INTEGER);
} elseif (null !== $platformName) {
$stmt->bindParam(1, $id);
$stmt->bindParam(2, $data, ParameterType::LARGE_OBJECT);
$stmt->bindValue(3, $lifetime, ParameterType::INTEGER);
$stmt->bindValue(4, $now, ParameterType::INTEGER);
} else {
$stmt->bindParam(1, $data, ParameterType::LARGE_OBJECT);
$stmt->bindValue(2, $lifetime, ParameterType::INTEGER);
$stmt->bindValue(3, $now, ParameterType::INTEGER);
$stmt->bindParam(4, $id);
$insertStmt = $this->conn->prepare($insertSql);
$insertStmt->bindParam(1, $id);
$insertStmt->bindParam(2, $data, ParameterType::LARGE_OBJECT);
$insertStmt->bindValue(3, $lifetime, ParameterType::INTEGER);
$insertStmt->bindValue(4, $now, ParameterType::INTEGER);
}
foreach ($values as $id => $data) {
try {
$rowCount = $stmt->executeStatement();
} catch (TableNotFoundException $e) {
if (!$this->conn->isTransactionActive() || \in_array($platformName, ['pgsql', 'sqlite', 'sqlsrv'], true)) {
$this->createTable();
}
$rowCount = $stmt->executeStatement();
}
if (null === $platformName && 0 === $rowCount) {
try {
$insertStmt->executeStatement();
} catch (DBALException $e) {
// A concurrent write won, let it be
}
}
}
return $failed;
}
private function getPlatformName(): string
{
if (isset($this->platformName)) {
return $this->platformName;
}
$platform = $this->conn->getDatabasePlatform();
switch (true) {
case $platform instanceof \Doctrine\DBAL\Platforms\MySQLPlatform:
case $platform instanceof \Doctrine\DBAL\Platforms\MySQL57Platform:
return $this->platformName = 'mysql';
case $platform instanceof \Doctrine\DBAL\Platforms\SqlitePlatform:
return $this->platformName = 'sqlite';
case $platform instanceof \Doctrine\DBAL\Platforms\PostgreSQLPlatform:
case $platform instanceof \Doctrine\DBAL\Platforms\PostgreSQL94Platform:
return $this->platformName = 'pgsql';
case $platform instanceof \Doctrine\DBAL\Platforms\OraclePlatform:
return $this->platformName = 'oci';
case $platform instanceof \Doctrine\DBAL\Platforms\SQLServerPlatform:
case $platform instanceof \Doctrine\DBAL\Platforms\SQLServer2012Platform:
return $this->platformName = 'sqlsrv';
default:
return $this->platformName = \get_class($platform);
}
}
private function getServerVersion(): string
{
if (isset($this->serverVersion)) {
return $this->serverVersion;
}
$conn = $this->conn->getWrappedConnection();
if ($conn instanceof ServerInfoAwareConnection) {
return $this->serverVersion = $conn->getServerVersion();
}
return $this->serverVersion = '0';
}
private function addTableToSchema(Schema $schema): void
{
$types = [
'mysql' => 'binary',
'sqlite' => 'text',
];
$table = $schema->createTable($this->table);
$table->addColumn($this->idCol, $types[$this->getPlatformName()] ?? 'string', ['length' => 255]);
$table->addColumn($this->dataCol, 'blob', ['length' => 16777215]);
$table->addColumn($this->lifetimeCol, 'integer', ['unsigned' => true, 'notnull' => false]);
$table->addColumn($this->timeCol, 'integer', ['unsigned' => true]);
$table->setPrimaryKey([$this->idCol]);
}
}