/**
* Parses the user request.
* @param Request $request the request component
* @return array|boolean the route and the associated parameters.
* False is returned if the current request cannot be successfully parsed.
*/
public function parseRequest($request)
{
$route = $request->getQueryParam('r', '');
if (is_array($route)) {
$route = '';
}
return [(string) $route, []];
}
public static function query($key, $default = null, $sanitize = true)
{
$result = Request::getQueryParam($key, $default);
if ($sanitize) {
$result = htmlspecialchars($result);
$result = trim($result);
}
return $result;
}
*/
/**
* Includes the side wide settings.
*/
require_once 'vendor/autoload.php';
header("Access-Control-Allow-Origin: *");
// enable CORS for the whole REST API
try {
$config = new GlobalConfig();
$model = new Model($config);
$controller = new RestController($model);
$request = new Request($model);
$path = $request->getServerConstant('PATH_INFO') ? $request->getServerConstant('PATH_INFO') : '';
// eg. "/search"
$parts = explode('/', $path);
$request->setUri($request->getQueryParam('uri'));
$request->setLang($request->getQueryParam('lang'));
if ($request->getQueryParam('vocab')) {
$request->setVocab($request->getQueryParam('vocab'));
}
if (sizeof($parts) < 2 || $parts[1] == "") {
header("HTTP/1.0 404 Not Found");
echo "404 Not Found";
} elseif ($parts[1] == 'vocabularies') {
$controller->vocabularies($request);
} elseif ($parts[1] == 'search') {
$controller->search($request);
} elseif ($parts[1] == 'types') {
$controller->types($request);
} elseif ($parts[1] == 'data') {
$controller->data($request);
$model = new Model($config);
$controller = new WebController($model);
$request = new Request($model);
// PATH_INFO, for example "/ysa/fi"
$path = $request->getServerConstant('PATH_INFO') ? $request->getServerConstant('PATH_INFO') : '';
$parts = explode('/', $path);
if (sizeof($parts) <= 2) {
// if language code missing, redirect to guessed language
// in any case, redirect to <lang>/
$lang = sizeof($parts) == 2 && $parts[1] !== '' ? $parts[1] : $controller->guessLanguage();
header("Location: " . $lang . "/");
} else {
if (array_key_exists($parts[1], $config->getLanguages())) {
// global pages
$request->setLang($parts[1]);
$content_lang = $request->getQueryParam('clang');
$request->setContentLang($content_lang);
$parts[2] == 'about' || $parts[2] == 'feedback' || $parts[2] == 'search' ? $request->setPage($parts[2]) : $request->setPage('');
if ($request->getPage() == '') {
$controller->invokeVocabularies($request);
} elseif ($request->getPage() == 'about') {
$controller->invokeAboutPage($request);
} elseif ($request->getPage() == 'feedback') {
$controller->invokeFeedbackForm($request);
} elseif ($request->getPage() == 'search') {
$controller->invokeGlobalSearch($request);
} else {
$controller->invokeGenericErrorPage($request);
}
} else {
// vocabulary-specific pages
/**
* Loads and renders the view containing a list of recent changes in the vocabulary.
* @param Request $request
*/
public function invokeChangeList($request, $prop = 'dc:created')
{
// set language parameters for gettext
$this->setLanguageProperties($request->getLang());
$vocab = $request->getVocab();
$offset = $request->getQueryParam('offset') && is_numeric($request->getQueryParam('offset')) && $request->getQueryParam('offset') >= 0 ? $request->getQueryParam('offset') : 0;
$changeList = $vocab->getChangeList($prop, $request->getContentLang(), $request->getLang(), $offset);
// load template
$template = $this->twig->loadTemplate('changes.twig');
// render template
echo $template->render(array('vocab' => $vocab, 'languages' => $this->languages, 'request' => $request, 'changeList' => $changeList));
}
/**
* Download a concept as json-ld or redirect to download the whole vocabulary.
* @param Request $request
* @return object json-ld formatted concept.
*/
public function data($request)
{
$vocab = $request->getVocab();
$format = $request->getQueryParam('format');
if ($request->getUri()) {
$uri = $request->getUri();
} else {
if ($vocab !== null) {
// whole vocabulary - redirect to download URL
$urls = $vocab->getDataURLs();
if (sizeof($urls) == 0) {
return $this->returnError('404', 'Not Found', "No download source URL known for vocabulary {$vocab}");
}
$format = $this->negotiateFormat(array_keys($urls), $request->getServerConstant('HTTP_ACCEPT'), $format);
if (!$format) {
return $this->returnError(406, 'Not Acceptable', "Unsupported format. Supported MIME types are: " . implode(' ', array_keys($urls)));
}
header("Location: " . $urls[$format]);
return;
} else {
return $this->returnError(400, 'Bad Request', "uri parameter missing");
}
}
$format = $this->negotiateFormat(explode(' ', self::$SUPPORTED_MIME_TYPES), $request->getServerConstant('HTTP_ACCEPT'), $format);
if (!$format) {
return $this->returnError(406, 'Not Acceptable', "Unsupported format. Supported MIME types are: " . self::$SUPPORTED_MIME_TYPES);
}
$vocid = $vocab ? $vocab->getId() : null;
$results = $this->model->getRDF($vocid, $uri, $format);
if ($format == 'application/ld+json' || $format == 'application/json') {
// further compact JSON-LD document using a context
$context = array('skos' => 'http://www.w3.org/2004/02/skos/core#', 'isothes' => 'http://purl.org/iso25964/skos-thes#', 'rdfs' => 'http://www.w3.org/2000/01/rdf-schema#', 'owl' => 'http://www.w3.org/2002/07/owl#', 'dct' => 'http://purl.org/dc/terms/', 'dc11' => 'http://purl.org/dc/elements/1.1/', 'uri' => '@id', 'type' => '@type', 'lang' => '@language', 'value' => '@value', 'graph' => '@graph', 'label' => 'rdfs:label', 'prefLabel' => 'skos:prefLabel', 'altLabel' => 'skos:altLabel', 'hiddenLabel' => 'skos:hiddenLabel', 'broader' => 'skos:broader', 'narrower' => 'skos:narrower', 'related' => 'skos:related', 'inScheme' => 'skos:inScheme');
$compact_jsonld = \ML\JsonLD\JsonLD::compact($results, json_encode($context));
$results = \ML\JsonLD\JsonLD::toString($compact_jsonld);
}
header("Content-type: {$format}; charset=utf-8");
echo $results;
}
