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<?php |
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/* |
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* This file is part of the Silverback API Component Bundle Project |
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* |
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* (c) Daniel West <[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 Silverback\ApiComponentBundle\Url; |
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use Silverback\ApiComponentBundle\Exception\InvalidArgumentException; |
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use Silverback\ApiComponentBundle\Exception\OutOfBoundsException; |
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use Symfony\Component\HttpFoundation\RequestStack; |
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/** |
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* @author Daniel West <[email protected]> |
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*/ |
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class RefererUrlHelper |
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{ |
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private RequestStack $requestStack; |
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public function __construct(RequestStack $requestStack) |
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{ |
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$this->requestStack = $requestStack; |
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} |
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public function getAbsoluteUrl($path): string |
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{ |
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if (false !== strpos($path, '://') || 0 === strpos($path, '//')) { |
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return $path; |
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} |
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$request = $this->requestStack->getMasterRequest(); |
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if (!$request) { |
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throw new InvalidArgumentException('To generate an absolute URL to the referrer, there must be a valid master request'); |
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} |
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if (null !== ($origin = $request->headers->get('origin', null))) { |
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return $this->getAbsoluteUrlUsingOrigin($origin, $path); |
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} |
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if (null !== ($referer = $request->headers->get('referer', null))) { |
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return $this->getAbsoluteUrlUsingReferer($referer, $path); |
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} |
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throw new OutOfBoundsException('To generate an absolute URL to the referrer, the request must have a `origin` or `referer` header present'); |
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} |
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private function getAbsoluteUrlUsingOrigin(string $origin, string $path): string |
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{ |
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return $this->addPathToUrl(rtrim($origin, '/'), $path); |
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} |
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private function getAbsoluteUrlUsingReferer(string $referer, string $path): string |
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{ |
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$defaults = [ |
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'host' => null, |
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'scheme' => null, |
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'port' => null, |
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]; |
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[ |
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'host' => $host, |
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'scheme' => $scheme, |
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'port' => $port |
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] = array_merge($defaults, parse_url($referer) ?: []); |
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if (null === $scheme || null === $host) { |
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throw new OutOfBoundsException('Could not extract either `scheme` of `host` key while parsing the `referer` header'); |
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} |
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$url = $scheme . '://' . $host; |
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if ($port && (('https' === $scheme && 443 !== $port) || ('http' === $scheme && 80 !== $port))) { |
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$url .= ':' . $port; |
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} |
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return $this->addPathToUrl($url, $path); |
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} |
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private function addPathToUrl(string $url, string $path): string |
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{ |
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return $url . '/' . ltrim($path, '/'); |
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} |
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} |
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components-web-app /
api-components-bundle
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