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<?php |
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/** |
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* EntityController is responsible for redirecting requests to the /entity address. |
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*/ |
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class EntityController extends Controller |
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{ |
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private function redirect303($url) |
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{ |
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header("HTTP/1.1 303 See Other"); |
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header("Location: $url"); |
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} |
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private function redirectREST($vocab, $uri, $targetFormat) |
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{ |
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$baseurl = $this->getBaseHref(); |
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$vocid = $vocab->getId(); |
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$query = http_build_query(array('uri' => $uri, 'format' => $targetFormat)); |
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$url = $baseurl . "rest/v1/$vocid/data?$query"; |
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$this->redirect303($url); |
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} |
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private function redirectWeb($vocab, $uri) |
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{ |
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$baseurl = $this->getBaseHref(); |
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$vocid = $vocab->getId(); |
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$localname = $vocab->getLocalName($uri); |
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if (!$localname) { |
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$url = $baseurl . "$vocid/"; |
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} else { |
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if ($localname !== $uri && $localname === urlencode($localname)) { |
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// the URI can be shortened |
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$url = $baseurl . "$vocid/page/$localname"; |
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} else { |
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// must use full URI |
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$query = http_build_query(array('uri' => $uri)); |
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$url = $baseurl . "$vocid/page/?" . $query; |
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} |
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} |
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$this->redirect303($url); |
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} |
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/** |
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* Perform a HTTP 303 redirect to the content-negotiated URL, either the |
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* web page for a resource or a REST API URL for retrieving its data. |
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* @param Request $request |
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*/ |
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public function redirect($request) |
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{ |
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/* determine parameters: URI and (optional) vocabulary */ |
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$request->setUri($request->getQueryParam('uri')); |
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if ($request->getQueryParam('vocab')) { |
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// vocabulary explicitly set |
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$request->setVocab($request->getQueryParam('vocab')); |
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} else { |
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// guess vocabulary based on URI |
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$vocab = $this->model->guessVocabularyFromURI($request->getUri()); |
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if ($vocab === null) { |
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return $this->returnError('404', 'Not Found', 'Unrecognized URI ' . $request->getUri()); |
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} |
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$request->setVocab($vocab->getId()); |
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} |
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// negotiate suitable response format |
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$restFormats = explode(' ', RestController::SUPPORTED_FORMATS); |
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$supportedFormats = $restFormats; |
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// add HTML as supported format (make it the first element so it becomes default) |
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array_unshift($supportedFormats, 'text/html'); |
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// optional query parameter for forcing a specific format |
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$requestedFormat = $request->getQueryParam('format'); |
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$targetFormat = $this->negotiateFormat($supportedFormats, $request->getServerConstant('HTTP_ACCEPT'), $requestedFormat); |
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if (in_array($targetFormat, $restFormats)) { |
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$this->redirectREST($request->getVocab(), $request->getUri(), $targetFormat); |
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} else { |
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$this->redirectWeb($request->getVocab(), $request->getUri()); |
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} |
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} |
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} |
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NatLibFi /
Skosmos
This check looks for function or method calls that always return null and whose return value is used.
The method
getObject()can return nothing but null, so it makes no sense to use the return value.The reason is most likely that a function or method is imcomplete or has been reduced for debug purposes.