Issue #3483508 by pdureau: Use a valid URI scheme and rethink...

Issue #3483508 by pdureau: Use a valid URI scheme and rethink FieldValueSourceBase::extractPropertyValue

Closes #3483508

src/Plugin/UiPatterns/PropType/UrlPropType.php

@@ -5,6 +5,7 @@ declare(strict_types=1);
 namespace Drupal\ui_patterns\Plugin\UiPatterns\PropType;
 
 use Drupal\Core\StringTranslation\TranslatableMarkup;
+use Drupal\Core\Url;
 use Drupal\ui_patterns\Attribute\PropType;
 use Drupal\ui_patterns\PropTypePluginBase;
 
@@ -22,4 +23,48 @@ use Drupal\ui_patterns\PropTypePluginBase;
 )]
 class UrlPropType extends PropTypePluginBase {
 
+  /**
+   * {@inheritdoc}
+   */
+  public static function normalize(mixed $value): mixed {
+    if (is_a($value, '\Drupal\Core\Url')) {
+      $value = $value->toString();
+    }
+    if (!is_string($value)) {
+      return "";
+    }
+
+    if ($value == "<front>") {
+      $value = "internal:/";
+    }
+    elseif ($value == "<none>") {
+      $value = "internal:";
+    }
+    // We don't use filter_var($value, FILTER_VALIDATE_URL) because too
+    // restrictive: catch only "scheme://foo".
+    if (preg_match("/^[a-z]+\:/", $value)) {
+      return self::resolveUrl($value);
+    }
+    // Any other string is considered as a valid path.
+    // This is not our work to do further checks and transformations.
+    return $value;
+  }
+
+  /**
+   * Normalize URL.
+   */
+  protected static function resolveUrl(string $value): string {
+    // PHP_URL_SCHEME works with "scheme://foo" and "scheme:foo".
+    $scheme = parse_url($value, PHP_URL_SCHEME);
+    if (in_array($scheme, ['public', 'private', 'temp'])) {
+      $generator = \Drupal::service('file_url_generator');
+      $value = $generator->generateAbsoluteString($value);
+      return Url::fromUri($value)->toString();
+    }
+    if (in_array($scheme, ['internal', 'entity', 'route'])) {
+      return Url::fromUri($value)->toString();
+    }
+    return $value;
+  }
+
 }