diff core/modules/media/src/OEmbed/ProviderRepository.php @ 17:129ea1e6d783

Update, including to Drupal core 8.6.10

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/core/modules/media/src/OEmbed/ProviderRepository.php	Thu Feb 28 13:21:36 2019 +0000
@@ -0,0 +1,122 @@
+<?php
+
+namespace Drupal\media\OEmbed;
+
+use Drupal\Component\Datetime\TimeInterface;
+use Drupal\Component\Serialization\Json;
+use Drupal\Core\Cache\CacheBackendInterface;
+use Drupal\Core\Cache\UseCacheBackendTrait;
+use Drupal\Core\Config\ConfigFactoryInterface;
+use GuzzleHttp\ClientInterface;
+use GuzzleHttp\Exception\RequestException;
+
+/**
+ * Retrieves and caches information about oEmbed providers.
+ */
+class ProviderRepository implements ProviderRepositoryInterface {
+
+  use UseCacheBackendTrait;
+
+  /**
+   * How long the provider data should be cached, in seconds.
+   *
+   * @var int
+   */
+  protected $maxAge;
+
+  /**
+   * The HTTP client.
+   *
+   * @var \GuzzleHttp\Client
+   */
+  protected $httpClient;
+
+  /**
+   * URL of a JSON document which contains a database of oEmbed providers.
+   *
+   * @var string
+   */
+  protected $providersUrl;
+
+  /**
+   * The time service.
+   *
+   * @var \Drupal\Component\Datetime\TimeInterface
+   */
+  protected $time;
+
+  /**
+   * Constructs a ProviderRepository instance.
+   *
+   * @param \GuzzleHttp\ClientInterface $http_client
+   *   The HTTP client.
+   * @param \Drupal\Core\Config\ConfigFactoryInterface $config_factory
+   *   The config factory service.
+   * @param \Drupal\Component\Datetime\TimeInterface $time
+   *   The time service.
+   * @param \Drupal\Core\Cache\CacheBackendInterface $cache_backend
+   *   (optional) The cache backend.
+   * @param int $max_age
+   *   (optional) How long the cache data should be kept. Defaults to a week.
+   */
+  public function __construct(ClientInterface $http_client, ConfigFactoryInterface $config_factory, TimeInterface $time, CacheBackendInterface $cache_backend = NULL, $max_age = 604800) {
+    $this->httpClient = $http_client;
+    $this->providersUrl = $config_factory->get('media.settings')->get('oembed_providers_url');
+    $this->time = $time;
+    $this->cacheBackend = $cache_backend;
+    $this->maxAge = (int) $max_age;
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  public function getAll() {
+    $cache_id = 'media:oembed_providers';
+
+    $cached = $this->cacheGet($cache_id);
+    if ($cached) {
+      return $cached->data;
+    }
+
+    try {
+      $response = $this->httpClient->request('GET', $this->providersUrl);
+    }
+    catch (RequestException $e) {
+      throw new ProviderException("Could not retrieve the oEmbed provider database from $this->providersUrl", NULL, $e);
+    }
+
+    $providers = Json::decode((string) $response->getBody());
+
+    if (!is_array($providers) || empty($providers)) {
+      throw new ProviderException('Remote oEmbed providers database returned invalid or empty list.');
+    }
+
+    $keyed_providers = [];
+    foreach ($providers as $provider) {
+      try {
+        $name = (string) $provider['provider_name'];
+        $keyed_providers[$name] = new Provider($provider['provider_name'], $provider['provider_url'], $provider['endpoints']);
+      }
+      catch (ProviderException $e) {
+        // Just skip all the invalid providers.
+        // @todo Log the exception message to help with debugging.
+      }
+    }
+
+    $this->cacheSet($cache_id, $keyed_providers, $this->time->getCurrentTime() + $this->maxAge);
+    return $keyed_providers;
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  public function get($provider_name) {
+    $providers = $this->getAll();
+
+    if (!isset($providers[$provider_name])) {
+      throw new \InvalidArgumentException("Unknown provider '$provider_name'");
+    }
+    return $providers[$provider_name];
+  }
+
+}