--- /dev/null
+<?php
+
+namespace Drupal\user\Plugin\Action;
+
+use Drupal\Core\Action\ActionBase;
+use Drupal\Core\Session\AccountInterface;
+
+/**
+ * Unblocks a user.
+ *
+ * @Action(
+ * id = "user_unblock_user_action",
+ * label = @Translation("Unblock the selected users"),
+ * type = "user"
+ * )
+ */
+class UnblockUser extends ActionBase {
+
+ /**
+ * {@inheritdoc}
+ */
+ public function execute($account = NULL) {
+ // Skip unblocking user if they are already unblocked.
+ if ($account !== FALSE && $account->isBlocked()) {
+ $account->activate();
+ $account->save();
+ }
+ }
+
+ /**
+ * {@inheritdoc}
+ */
+ public function access($object, AccountInterface $account = NULL, $return_as_object = FALSE) {
+ /** @var \Drupal\user\UserInterface $object */
+ $access = $object->status->access('edit', $account, TRUE)
+ ->andIf($object->access('update', $account, TRUE));
+
+ return $return_as_object ? $access : $access->isAllowed();
+ }
+
+}