Version 1

[yaffs-website] / web / modules / contrib / media_entity_twitter / src / Plugin / Validation / Constraint / TweetVisibleConstraintValidator.php

diff --git a/web/modules/contrib/media_entity_twitter/src/Plugin/Validation/Constraint/TweetVisibleConstraintValidator.php b/web/modules/contrib/media_entity_twitter/src/Plugin/Validation/Constraint/TweetVisibleConstraintValidator.php
new file mode 100644 (file)
index 0000000..8843f6f
--- /dev/null
+++ b/web/modules/contrib/media_entity_twitter/src/Plugin/Validation/Constraint/TweetVisibleConstraintValidator.php
@@ -0,0 +1,77 @@
+<?php
+
+namespace Drupal\media_entity_twitter\Plugin\Validation\Constraint;
+
+use Drupal\Core\DependencyInjection\ContainerInjectionInterface;
+use Drupal\media_entity\EmbedCodeValueTrait;
+use Drupal\media_entity_twitter\Plugin\MediaEntity\Type\Twitter;
+use GuzzleHttp\Client;
+use Symfony\Component\DependencyInjection\ContainerInterface;
+use Symfony\Component\Validator\Constraint;
+use Symfony\Component\Validator\ConstraintValidator;
+
+/**
+ * Validates the TweetVisible constraint.
+ */
+class TweetVisibleConstraintValidator extends ConstraintValidator implements ContainerInjectionInterface {
+
+  use EmbedCodeValueTrait;
+
+  /**
+   * The HTTP client to fetch the feed data with.
+   *
+   * @var \GuzzleHttp\Client
+   */
+  protected $httpClient;
+
+  /**
+   * Constructs a new TweetVisibleConstraintValidator.
+   *
+   * @param \GuzzleHttp\Client $http_client
+   *   The http client service.
+   */
+  public function __construct(Client $http_client) {
+    $this->httpClient = $http_client;
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  public static function create(ContainerInterface $container) {
+    return new static($container->get('http_client'));
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  public function validate($value, Constraint $constraint) {
+    $value = $this->getEmbedCode($value);
+    if (!isset($value)) {
+      return;
+    }
+
+    $matches = [];
+
+    foreach (Twitter::$validationRegexp as $pattern => $key) {
+      if (preg_match($pattern, $value, $item_matches)) {
+        $matches[] = $item_matches;
+      }
+    }
+
+    if (empty($matches[0][0])) {
+      // If there are no matches the URL is not correct, so stop validation.
+      return;
+    }
+
+    // Fetch content from the given url.
+    $response = $this->httpClient->get($matches[0][0], ['allow_redirects' => FALSE]);
+
+    if ($response->getStatusCode() == 302 && ($location = $response->getHeader('location'))) {
+      $effective_url_parts = parse_url($location[0]);
+      if (!empty($effective_url_parts) && isset($effective_url_parts['query']) && $effective_url_parts['query'] == 'protected_redirect=true') {
+        $this->context->addViolation($constraint->message);
+      }
+    }
+  }
+
+}