/**
* {@inheritDoc}
*/
public function extractAttributes($html, array $options)
{
$Document = $this->_document($html);
$options = Hash::normalize($options, []);
$data = [];
foreach ($options as $name => $required) {
$tags = $Document->getElementsByTagName($name);
$required = Hash::normalize((array) $required, '');
$data[$name] = [];
foreach ($tags as $Tag) {
if ($Tag->hasAttributes()) {
$attributes = $this->_extractAttributesFromTag($Tag, $required);
if (!empty($attributes)) {
$data[$name][] = $attributes;
}
}
}
}
return $data;
}
/**
* Fetches embed information from the given endpoint.
*
* @param string $endpoint Endpoint to fetch informations from.
* @param string $format Response format.
* @return Media Embed informations.
*/
protected function _embedEndpoint($endpoint, $format)
{
$response = $this->_Http->get($endpoint);
switch ($format) {
case self::json:
$data = Json::parse($response);
break;
case self::xml:
$data = Xml::parse($response);
break;
default:
throw new Exception('Unsupported response format.');
}
return new Media(Hash::reindex($data, ['author_name' => 'authorName', 'author_url' => 'authorUrl', 'provider_name' => 'providerName', 'provider_url' => 'providerUrl', 'cache_age' => 'cacheAge', 'thumbnail_url' => 'thumbnailUrl', 'thumbnail_width' => 'thumbnailWidth', 'thumbnail_height' => 'thumbnailHeight']));
}
/**
*
*/
public function testNormalize()
{
$data = Hash::normalize(['one', 'two' => 'three', 'four'], 'default');
$this->assertEquals(['one' => 'default', 'two' => 'three', 'four' => 'default'], $data);
}
/**
* Fetches informations about the given URLs.
*
* @param array $urls An array of URLs to fetch informations from.
* @param array $options Custom options to be interpreted by a provider.
* @return array An array of informations, indexed by URL.
*/
public function extractAll(array $urls, array $options = [])
{
return Hash::combine($urls, function ($url) use($options) {
(yield $url => $this->extract($url, $options));
});
}
/**
* {@inheritDoc}
*/
protected function _embed($url, array $options)
{
return new Media(Hash::reindex($this->_extractInformations($url), ['og:type' => 'type', 'og:title' => 'title', 'og:description' => 'description', 'og:site_name' => 'providerName', 'og:image' => 'thumbnailUrl', 'og:image:url' => 'thumbnailUrl', 'og:image:width' => 'width', 'og:image:height' => 'height', 'og:video:width' => 'width', 'og:video:height' => 'height', 'og:url' => 'url']));
}
/**
* Builds a media from the given meta tags.
*
* @param array $metas Meta tags.
* @return Media Media.
*/
protected function _media(array $metas)
{
$metas = Hash::combine($metas, function ($Meta) {
(yield $Meta->get('property') => $Meta->get('content'));
});
return new Media($metas);
}
/**
* {@inheritDoc}
*/
public function present(Media $Media)
{
return $Media->setProperties(Hash::reindex($Media->properties(), $this->_mapping));
}