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<?php |
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declare(strict_types=1); |
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namespace Ray\AuraSqlModule; |
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use Aura\Sql\ExtendedPdo; |
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use function array_rand; |
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use function explode; |
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use function getenv; |
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use function preg_match; |
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use function sprintf; |
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final class EnvConnection |
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{ |
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private string $dsn; |
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private string $username; |
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private string $password; |
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/** @var array<string> */ |
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private array $options; |
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/** @var array<string> */ |
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private array $queries; |
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/** @var array<ExtendedPdo> */ |
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private static array $pdo = []; |
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private ?string $slave; |
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/** |
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* @phpstan-param array<string> $options |
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* @phpstan-param array<string> $queries |
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*/ |
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public function __construct( |
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string $dsn, |
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?string $slave, |
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string $username = '', |
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string $password = '', |
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array $options = [], |
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array $queries = [] |
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) { |
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$this->dsn = $dsn; |
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$this->slave = $slave; |
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$this->username = $username; |
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$this->password = $password; |
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$this->options = $options; |
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$this->queries = $queries; |
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} |
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public function __invoke(): ExtendedPdo |
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{ |
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$dsn = $this->getDsn(); |
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if (isset(self::$pdo[$dsn])) { |
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return self::$pdo[$dsn]; |
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} |
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self::$pdo[$dsn] = new ExtendedPdo( |
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$dsn, |
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(string) getenv($this->username), |
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(string) getenv($this->password), |
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$this->options, |
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$this->queries |
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); |
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return self::$pdo[$dsn]; |
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} |
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private function getDsn(): string |
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{ |
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// write |
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if ($this->slave === null) { |
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return (string) getenv($this->dsn); |
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} |
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// random read |
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$slaveList = explode(',', (string) getenv($this->slave)); |
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$slave = $slaveList[array_rand($slaveList)]; |
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return $this->changeHost((string) getenv($this->dsn), $slave); |
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} |
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/** |
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* @psalm-pure |
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*/ |
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private function changeHost(string $dsn, string $host): string |
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{ |
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preg_match(AuraSqlModule::PARSE_PDO_DSN_REGEX, $dsn, $parts); |
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if (! $parts) { |
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// @codeCoverageIgnoreStart |
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return $dsn; |
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// @codeCoverageIgnoreEnd |
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} |
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return sprintf('%s:%s=%s;%s', $parts[1], $parts[2], $host, $parts[3]); |
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} |
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} |
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Ray-Di /
Ray.AuraSqlModule
