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OembedExtractor.php: add extractor

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Zankaria 2025-03-16 23:26:45 +01:00
parent 0e9c9de5c6
commit 231fcb9ca9
1 changed files with 70 additions and 0 deletions
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inc/Services/Embed/OembedExtractor.php Normal file
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<?php
namespace Vichan\Services\Embed;
use Vichan\Data\Driver\{CacheDriver, HttpDriver};
use Vichan\Data\OembedResponse;
class OembedExtractor {
private const DEFAULT_CACHE_TIMEOUT = 3600; // 1 hour.
private CacheDriver $cache;
private HttpDriver $http;
private int $provider_timeout;
public function __construct(CacheDriver $cache, HttpDriver $http, int $provider_timeout) {
$this->cache = $cache;
$this->http = $http;
$this->provider_timeout = $provider_timeout;
}
/**
* Fetch the oembed data from the given provider with the given url.
*
* @param string $identifier Opaque identifier for caching, must be unique for each $url-$provider combination.
* @return OembedResponse The serialized remove response. May be cached.
*/
public function fetch(string $provider_url, string $url): OembedResponse {
$ret = $this->cache->get("oembed_embedder_$provider_url$url");
if ($ret === null) {
$body = $this->http->requestGet(
$provider_url,
[
'url' => $url,
'format' => 'json'
],
[
'Content-Type: application/json'
],
$this->provider_timeout
);
$json = \json_decode($body, null, 512, \JSON_THROW_ON_ERROR);
if (!isset($json['title'])) {
throw new \RuntimeException("Missing type in response from $provider_url");
}
$ret = [
'type' => $json['type'],
'title' => $json['title'],
'cache_age' => $json['cache_age'],
'thumbnail_url' => $json['thumbnail_url'],
'thumbnail_width' => $json['thumbnail_width'],
'thumbnail_height' => $json['thumbnail_heigh']
];
$cache_timeout = $ret['cache_age'] ?? self::DEFAULT_CACHE_TIMEOUT;
$this->cache->set("oembed_embedder_$url$provider_url", $ret, $cache_timeout);
}
$resp = new OembedResponse();
$resp->type = $ret['title'];
$resp->title = $ret['title'] ?? null;
$resp->cache_age = $ret['cache_age'] ?? null;
$resp->thumbnail_url = $ret['thumbnail_url'] ?? null;
$resp->thumbnail_width = $ret['thumbnail_width'] ?? null;
$resp->thumbnail_height = $ret['thumbnail_height'] ?? null;
return $ret;
}
}