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<?php |
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/** |
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* Copyright (c) 2016 Aalto University and University of Helsinki |
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* MIT License |
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* see LICENSE.txt for more information |
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*/ |
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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 !== $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/?" . $query; |
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} |
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$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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/* 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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$request->setVocab($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
You can fix this by adding a namespace to your class:
When choosing a vendor namespace, try to pick something that is not too generic to avoid conflicts with other libraries.