namespace Friendica\Util;
use Friendica\Core\Cache;
-use digitalbazaar\jsonld as DBJsonLD;
+use Exception;
/**
* @brief This class contain methods to work with JsonLD data
*/
class JsonLD
{
+ /**
+ * @brief Loader for LD-JSON validation
+ *
+ * @param $url
+ *
+ * @return the loaded data
+ */
public static function documentLoader($url)
{
$recursion = 0;
return $data;
}
+ /**
+ * @brief Normalises a given JSON array
+ *
+ * @param array $json
+ *
+ * @return normalized JSON string
+ */
public static function normalize($json)
{
jsonld_set_document_loader('Friendica\Util\JsonLD::documentLoader');
- $jsonobj = json_decode(json_encode($json));
+ $jsonobj = json_decode(json_encode($json, JSON_UNESCAPED_SLASHES | JSON_UNESCAPED_UNICODE));
- return jsonld_normalize($jsonobj, array('algorithm' => 'URDNA2015', 'format' => 'application/nquads'));
+ try {
+ $normalized = jsonld_normalize($jsonobj, array('algorithm' => 'URDNA2015', 'format' => 'application/nquads'));
+ }
+ catch (Exception $e) {
+ $normalized = false;
+ logger('normalise error:' . print_r($e, true), LOGGER_DEBUG);
+ }
+
+ return $normalized;
}
+ /**
+ * @brief Compacts a given JSON array
+ *
+ * @param array $json
+ *
+ * @return comacted JSON array
+ */
public static function compact($json)
{
jsonld_set_document_loader('Friendica\Util\JsonLD::documentLoader');
'vcard' => (object)['@id' => 'http://www.w3.org/2006/vcard/ns#', '@type' => '@id'],
'uuid' => (object)['@id' => 'http://schema.org/identifier', '@type' => '@id']];
- $jsonobj = json_decode(json_encode($json));
+ $jsonobj = json_decode(json_encode($json, JSON_UNESCAPED_SLASHES | JSON_UNESCAPED_UNICODE));
$compacted = jsonld_compact($jsonobj, $context);
- return json_decode(json_encode($compacted), true);
+ return json_decode(json_encode($compacted, JSON_UNESCAPED_SLASHES | JSON_UNESCAPED_UNICODE), true);
}
+ /**
+ * @brief Fetches an element from a JSON array
+ *
+ * @param $array
+ * @param $element
+ * @param $key
+ * @param $type
+ * @param $type_value
+ *
+ * @return fetched element
+ */
public static function fetchElement($array, $element, $key, $type = null, $type_value = null)
{
if (empty($array)) {