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<?php |
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/** |
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* This file is part of the tarantool/client package. |
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* |
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* (c) Eugene Leonovich <[email protected]> |
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* |
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* For the full copyright and license information, please view the LICENSE |
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* file that was distributed with this source code. |
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*/ |
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declare(strict_types=1); |
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namespace Tarantool\Client\Middleware; |
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use Tarantool\Client\Exception\RequestDenied; |
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use Tarantool\Client\Handler\Handler; |
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use Tarantool\Client\Request\Request; |
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use Tarantool\Client\RequestTypes; |
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use Tarantool\Client\Response; |
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final class FirewallMiddleware implements Middleware |
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{ |
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/** @var array<int, true> */ |
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private $allowed; |
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/** @var array<int, true> */ |
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private $denied; |
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/** |
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* @param array $allowed |
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* @param array $denied |
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*/ |
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private function __construct($allowed, $denied) |
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{ |
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$this->allowed = $allowed ? \array_fill_keys($allowed, true) : []; |
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$this->denied = $denied ? \array_fill_keys($denied, true) : []; |
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} |
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public static function allow(int $requestType, int ...$requestTypes) : self |
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{ |
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return new self([-1 => $requestType] + $requestTypes, []); |
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} |
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public static function deny(int $requestType, int ...$requestTypes) : self |
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{ |
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return new self([], [-1 => $requestType] + $requestTypes); |
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} |
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public static function allowReadOnly() : self |
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{ |
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$self = new self([], []); |
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$self->allowed = [ |
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RequestTypes::AUTHENTICATE => true, |
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RequestTypes::PING => true, |
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RequestTypes::SELECT => true, |
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]; |
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return $self; |
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} |
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public function andAllow(int $requestType, int ...$requestTypes) : self |
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{ |
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$new = clone $this; |
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$new->allowed += $requestTypes |
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? \array_fill_keys([-1 => $requestType] + $requestTypes, true) |
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: [$requestType => true]; |
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return $new; |
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} |
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public function andAllowOnly(int $requestType, int ...$requestTypes) : self |
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{ |
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$new = clone $this; |
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$new->allowed = $requestTypes |
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? \array_fill_keys([-1 => $requestType] + $requestTypes, true) |
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: [$requestType => true]; |
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return $new; |
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} |
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public function andDeny(int $requestType, int ...$requestTypes) : self |
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{ |
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$new = clone $this; |
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$new->denied += $requestTypes |
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? \array_fill_keys([-1 => $requestType] + $requestTypes, true) |
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: [$requestType => true]; |
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return $new; |
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} |
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public function andDenyOnly(int $requestType, int ...$requestTypes) : self |
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{ |
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$new = clone $this; |
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$new->denied = $requestTypes |
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? \array_fill_keys([-1 => $requestType] + $requestTypes, true) |
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: [$requestType => true]; |
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return $new; |
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} |
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public function process(Request $request, Handler $handler) : Response |
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{ |
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$requestType = $request->getType(); |
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if (isset($this->denied[$requestType])) { |
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throw RequestDenied::fromObject($request); |
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} |
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if ([] !== $this->allowed && !isset($this->allowed[$requestType])) { |
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throw RequestDenied::fromObject($request); |
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} |
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return $handler->handle($request); |
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} |
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} |
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tarantool-php /
client
