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<?php |
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declare(strict_types=1); |
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namespace Yiisoft\Yii\Web\Middleware; |
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use Psr\Http\Message\ResponseFactoryInterface; |
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use Psr\Http\Message\ResponseInterface; |
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use Psr\Http\Message\ServerRequestInterface; |
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use Psr\Http\Server\MiddlewareInterface; |
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use Psr\Http\Server\RequestHandlerInterface; |
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use Yiisoft\Http\Header; |
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use Yiisoft\Http\Status; |
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/** |
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* Redirects from HTTP to HTTPS and adds CSP and HSTS headers. |
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* |
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* Note: Prefer forcing HTTPS via web server in case you are not creating installable product such as CMS |
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* and not hosting the project on a server where you do not have access to web server configuration. |
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*/ |
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final class ForceSecureConnection implements MiddlewareInterface |
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{ |
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private const DEFAULT_CSP_DIRECTIVES = 'upgrade-insecure-requests; default-src https:'; |
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private const DEFAULT_HSTS_MAX_AGE = 31_536_000; // 12 months |
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private bool $redirect = true; |
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private int $statusCode = Status::MOVED_PERMANENTLY; |
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private ?int $port = null; |
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private bool $addCSP = true; |
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private string $cspDirectives = self::DEFAULT_CSP_DIRECTIVES; |
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private bool $addSTS = true; |
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private int $hstsMaxAge = self::DEFAULT_HSTS_MAX_AGE; |
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private bool $hstsSubDomains = false; |
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private ResponseFactoryInterface $responseFactory; |
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public function __construct(ResponseFactoryInterface $responseFactory) |
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{ |
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$this->responseFactory = $responseFactory; |
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} |
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public function process(ServerRequestInterface $request, RequestHandlerInterface $handler): ResponseInterface |
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{ |
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if ($this->redirect && strcasecmp($request->getUri()->getScheme(), 'http') === 0) { |
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$url = (string)$request->getUri()->withScheme('https')->withPort($this->port); |
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return $this->addCSP( |
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$this->responseFactory |
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->createResponse($this->statusCode) |
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->withHeader(Header::LOCATION, $url) |
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); |
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} |
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return $this->addHSTS($this->addCSP($handler->handle($request))); |
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} |
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public function withRedirection($statusCode = Status::MOVED_PERMANENTLY, int $port = null): self |
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{ |
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$clone = clone $this; |
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$clone->redirect = true; |
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$clone->port = $port; |
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$clone->statusCode = $statusCode; |
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return $clone; |
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} |
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public function withoutRedirection(): self |
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{ |
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$clone = clone $this; |
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$clone->redirect = false; |
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return $clone; |
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} |
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/** |
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* Add Content-Security-Policy header to Response |
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* @link https://developer.mozilla.org/docs/Web/HTTP/CSP |
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* @link https://developer.mozilla.org/docs/Web/HTTP/Headers/Content-Security-Policy |
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* @param string $directives |
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* @return ForceSecureConnection |
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*/ |
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public function withCSP(string $directives = self::DEFAULT_CSP_DIRECTIVES): self |
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{ |
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$clone = clone $this; |
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$clone->addCSP = true; |
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$clone->cspDirectives = $directives; |
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return $clone; |
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} |
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public function withoutCSP(): self |
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{ |
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$clone = clone $this; |
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$clone->addCSP = false; |
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return $clone; |
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} |
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/** |
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* Add Strict-Transport-Security header to Response |
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* @link https://developer.mozilla.org/docs/Web/HTTP/Headers/Strict-Transport-Security |
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* @param int $maxAge |
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* @param bool $subDomains |
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* @return ForceSecureConnection |
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*/ |
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public function withHSTS(int $maxAge = self::DEFAULT_HSTS_MAX_AGE, bool $subDomains = false): self |
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{ |
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$clone = clone $this; |
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$clone->addSTS = true; |
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$clone->hstsMaxAge = $maxAge; |
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$clone->hstsSubDomains = $subDomains; |
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return $clone; |
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} |
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public function withoutHSTS(): self |
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{ |
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$clone = clone $this; |
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$clone->addSTS = false; |
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return $clone; |
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} |
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private function addCSP(ResponseInterface $response): ResponseInterface |
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{ |
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return $this->addCSP |
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? $response->withHeader(Header::CONTENT_SECURITY_POLICY, $this->cspDirectives) |
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: $response; |
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} |
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private function addHSTS(ResponseInterface $response): ResponseInterface |
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{ |
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$subDomains = $this->hstsSubDomains ? 'includeSubDomains' : ''; |
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return $this->addSTS |
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? $response->withHeader(Header::STRICT_TRANSPORT_SECURITY, "max-age={$this->hstsMaxAge}; {$subDomains}") |
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: $response; |
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} |
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} |
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yiisoft /
yii-web
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