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diff --git a/web/modules/contrib/filefield_sources/src/FilefieldSourceManager.php b/web/modules/contrib/filefield_sources/src/FilefieldSourceManager.php
new file mode 100644
index 000000000..5c320d191
--- /dev/null
+++ b/web/modules/contrib/filefield_sources/src/FilefieldSourceManager.php
@@ -0,0 +1,54 @@
+<?php
+
+/**
+ * @file
+ * Contains \Drupal\filefield_sources\FilefieldSourceManager.
+ */
+
+namespace Drupal\filefield_sources;
+
+use Drupal\Core\Cache\CacheBackendInterface;
+use Drupal\Core\Extension\ModuleHandlerInterface;
+use Drupal\Core\Plugin\DefaultPluginManager;
+
+/**
+ * Provides a plugin manager for file field source.
+ *
+ * @see \Drupal\filefield_sources\Annotation\FilefieldSource
+ * @see \Drupal\filefield_sources\FilefieldSourceInterface
+ * @see plugin_api
+ */
+class FilefieldSourceManager extends DefaultPluginManager {
+
+  /**
+   * Constructs a FilefieldSourceManager object.
+   *
+   * @param \Traversable $namespaces
+   *   An object that implements \Traversable which contains the root paths
+   *   keyed by the corresponding namespace to look for plugin implementations.
+   * @param \Drupal\Core\Cache\CacheBackendInterface $cache_backend
+   *   Cache backend instance to use.
+   * @param \Drupal\Core\Extension\ModuleHandlerInterface $module_handler
+   *   The module handler to invoke the alter hook with.
+   */
+  public function __construct(\Traversable $namespaces, CacheBackendInterface $cache_backend, ModuleHandlerInterface $module_handler) {
+    $this->setCacheBackend($cache_backend, 'filefield_sources');
+
+    parent::__construct('Plugin/FilefieldSource', $namespaces, $module_handler, 'Drupal\filefield_sources\FilefieldSourceInterface', 'Drupal\filefield_sources\Annotation\FilefieldSource');
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  public function getDefinitions() {
+    $definitions = parent::getDefinitions();
+    if (!\Drupal::moduleHandler()->moduleExists('imce')) {
+      unset($definitions['imce']);
+    }
+    if (!filefield_sources_curl_enabled()) {
+      unset($definitions['remote']);
+    }
+    return $definitions;
+  }
+
+}