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<?php |
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namespace Psr7Middlewares\Middleware; |
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use Psr7Middlewares\Utils; |
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use Psr\Http\Message\ServerRequestInterface; |
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use Psr\Http\Message\ResponseInterface; |
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/** |
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* Middleware to redirect to https protocol. |
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*/ |
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class Https |
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{ |
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use Utils\RedirectTrait; |
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const HEADER = 'Strict-Transport-Security'; |
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/** |
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* @param int One year by default |
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*/ |
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private $maxAge = 31536000; |
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/** |
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* @param bool Whether include subdomains |
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*/ |
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private $includeSubdomains = false; |
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/** |
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* @param bool Whether check the headers "HTTP_X_FORWARDED_PROTO: https" or "HTTP_X_FORWARDED_PORT: 443" |
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*/ |
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private $checkHttpsForward = false; |
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/** |
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* Set basic config. |
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*/ |
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public function __construct() |
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{ |
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$this->redirect(301); |
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} |
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/** |
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* Configure the max-age HSTS in seconds. |
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* |
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* @param int $maxAge |
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* |
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* @return self |
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*/ |
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public function maxAge($maxAge) |
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{ |
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$this->maxAge = $maxAge; |
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return $this; |
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} |
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/** |
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* Configure the includeSubDomains HSTS directive. |
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* |
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* @param bool $includeSubdomains |
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* |
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* @return self |
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*/ |
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public function includeSubdomains($includeSubdomains = true) |
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{ |
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$this->includeSubdomains = $includeSubdomains; |
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return $this; |
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} |
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/** |
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* Configure whether check the following headers before redirect: |
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* HTTP_X_FORWARDED_PROTO: https |
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* HTTP_X_FORWARDED_PORT: 443 |
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* |
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* @param bool $checkHttpsForward |
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* |
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* @return self |
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*/ |
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public function checkHttpsForward($checkHttpsForward = true) |
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{ |
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$this->checkHttpsForward = $checkHttpsForward; |
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return $this; |
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} |
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/** |
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* Execute the middleware. |
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* |
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* @param ServerRequestInterface $request |
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* @param ResponseInterface $response |
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* @param callable $next |
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* |
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* @return ResponseInterface |
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*/ |
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public function __invoke(ServerRequestInterface $request, ResponseInterface $response, callable $next) |
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{ |
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$uri = $request->getUri(); |
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if (strtolower($uri->getScheme()) !== 'https') { |
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$uri = $uri->withScheme('https')->withPort(443); |
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if ($this->redirectStatus !== false && (!$this->checkHttpsForward || ($request->getHeaderLine('HTTP_X_FORWARDED_PROTO') !== 'https' && $request->getHeaderLine('HTTP_X_FORWARDED_PORT') !== '443'))) { |
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return $this->getRedirectResponse($request, $uri, $response); |
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} |
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$request = $request->withUri($uri); |
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} |
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if (!empty($this->maxAge)) { |
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$response = $response->withHeader(self::HEADER, sprintf('max-age=%d%s', $this->maxAge, $this->includeSubdomains ? ';includeSubDomains' : '')); |
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} |
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$response = $next($request, $response); |
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if (Utils\Helpers::isRedirect($response)) { |
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return $response->withHeader('Location', str_replace('http://', 'https://', $response->getHeaderLine('Location'))); |
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} |
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return $response; |
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} |
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} |
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oscarotero /
psr7-middlewares
