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<?php |
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namespace Shlinkio\Shlink\Rest\Middleware; |
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use Psr\Http\Message\ResponseInterface as Response; |
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use Psr\Http\Message\ServerRequestInterface as Request; |
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use Zend\Stratigility\MiddlewareInterface; |
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class PathVersionMiddleware implements MiddlewareInterface |
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{ |
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/** |
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* Process an incoming request and/or response. |
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* |
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* Accepts a server-side request and a response instance, and does |
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* something with them. |
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* |
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* If the response is not complete and/or further processing would not |
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* interfere with the work done in the middleware, or if the middleware |
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* wants to delegate to another process, it can use the `$out` callable |
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* if present. |
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* |
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* If the middleware does not return a value, execution of the current |
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* request is considered complete, and the response instance provided will |
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* be considered the response to return. |
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* |
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* Alternately, the middleware may return a response instance. |
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* |
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* Often, middleware will `return $out();`, with the assumption that a |
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* later middleware will return a response. |
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* |
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* @param Request $request |
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* @param Response $response |
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* @param null|callable $out |
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* @return null|Response |
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*/ |
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public function __invoke(Request $request, Response $response, callable $out = null) |
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{ |
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$uri = $request->getUri(); |
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$path = $uri->getPath(); |
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// Exclude non-rest route |
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if (strpos($path, '/rest') !== 0) { |
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return $out($request, $response); |
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} |
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// If the path does not begin with the version number, prepend v1 by default for retrocompatibility purposes |
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if (strpos($path, '/rest/v') !== 0) { |
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$parts = explode('/', $path); |
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// Remove the first empty part and the "/rest" prefix |
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array_shift($parts); |
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array_shift($parts); |
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// Prepend the prefix with version |
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array_unshift($parts, '/rest/v1'); |
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$request = $request->withUri($uri->withPath(implode('/', $parts))); |
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} |
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return $out($request, $response); |
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} |
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} |
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shlinkio /
shlink
