Move into nested docroot

web/core/modules/action/src/ActionAddForm.php

@@ -0,0 +1,70 @@
+<?php
+
+namespace Drupal\action;
+
+use Drupal\Component\Utility\Crypt;
+use Drupal\Core\Action\ActionManager;
+use Drupal\Core\Entity\EntityStorageInterface;
+use Drupal\Core\Form\FormStateInterface;
+use Symfony\Component\DependencyInjection\ContainerInterface;
+
+/**
+ * Provides a form for action add forms.
+ */
+class ActionAddForm extends ActionFormBase {
+
+  /**
+   * The action manager.
+   *
+   * @var \Drupal\Core\Action\ActionManager
+   */
+  protected $actionManager;
+
+  /**
+   * Constructs a new ActionAddForm.
+   *
+   * @param \Drupal\Core\Entity\EntityStorageInterface $storage
+   *   The action storage.
+   * @param \Drupal\Core\Action\ActionManager $action_manager
+   *   The action plugin manager.
+   */
+  public function __construct(EntityStorageInterface $storage, ActionManager $action_manager) {
+    parent::__construct($storage);
+
+    $this->actionManager = $action_manager;
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  public static function create(ContainerInterface $container) {
+    return new static(
+      $container->get('entity.manager')->getStorage('action'),
+      $container->get('plugin.manager.action')
+    );
+  }
+
+  /**
+   * {@inheritdoc}
+   *
+   * @param string $action_id
+   *   The hashed version of the action ID.
+   */
+  public function buildForm(array $form, FormStateInterface $form_state, $action_id = NULL) {
+    // In \Drupal\action\Form\ActionAdminManageForm::buildForm() the action
+    // are hashed. Here we have to decrypt it to find the desired action ID.
+    foreach ($this->actionManager->getDefinitions() as $id => $definition) {
+      $key = Crypt::hashBase64($id);
+      if ($key === $action_id) {
+        $this->entity->setPlugin($id);
+        // Derive the label and type from the action definition.
+        $this->entity->set('label', $definition['label']);
+        $this->entity->set('type', $definition['type']);
+        break;
+      }
+    }
+
+    return parent::buildForm($form, $form_state);
+  }
+
+}

web/core/modules/action/src/ActionEditForm.php

@@ -0,0 +1,10 @@
+<?php
+
+namespace Drupal\action;
+
+/**
+ * Provides a form for action edit forms.
+ */
+class ActionEditForm extends ActionFormBase {
+
+}

web/core/modules/action/src/ActionFormBase.php

@@ -0,0 +1,150 @@
+<?php
+
+namespace Drupal\action;
+
+use Drupal\Core\Entity\EntityForm;
+use Drupal\Core\Entity\EntityStorageInterface;
+use Drupal\Core\Form\FormStateInterface;
+use Drupal\Core\Plugin\PluginFormInterface;
+use Symfony\Component\DependencyInjection\ContainerInterface;
+
+/**
+ * Provides a base form for action forms.
+ */
+abstract class ActionFormBase extends EntityForm {
+
+  /**
+   * The action plugin being configured.
+   *
+   * @var \Drupal\Core\Action\ActionInterface
+   */
+  protected $plugin;
+
+  /**
+   * The action storage.
+   *
+   * @var \Drupal\Core\Entity\EntityStorageInterface
+   */
+  protected $storage;
+
+  /**
+   * Constructs a new action form.
+   *
+   * @param \Drupal\Core\Entity\EntityStorageInterface $storage
+   *   The action storage.
+   */
+  public function __construct(EntityStorageInterface $storage) {
+    $this->storage = $storage;
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  public static function create(ContainerInterface $container) {
+    return new static(
+      $container->get('entity.manager')->getStorage('action')
+    );
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  public function buildForm(array $form, FormStateInterface $form_state) {
+    $this->plugin = $this->entity->getPlugin();
+    return parent::buildForm($form, $form_state);
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  public function form(array $form, FormStateInterface $form_state) {
+    $form['label'] = array(
+      '#type' => 'textfield',
+      '#title' => $this->t('Label'),
+      '#default_value' => $this->entity->label(),
+      '#maxlength' => '255',
+      '#description' => $this->t('A unique label for this advanced action. This label will be displayed in the interface of modules that integrate with actions.'),
+    );
+
+    $form['id'] = array(
+      '#type' => 'machine_name',
+      '#default_value' => $this->entity->id(),
+      '#disabled' => !$this->entity->isNew(),
+      '#maxlength' => 64,
+      '#description' => $this->t('A unique name for this action. It must only contain lowercase letters, numbers and underscores.'),
+      '#machine_name' => array(
+        'exists' => array($this, 'exists'),
+      ),
+    );
+    $form['plugin'] = array(
+      '#type' => 'value',
+      '#value' => $this->entity->get('plugin'),
+    );
+    $form['type'] = array(
+      '#type' => 'value',
+      '#value' => $this->entity->getType(),
+    );
+
+    if ($this->plugin instanceof PluginFormInterface) {
+      $form += $this->plugin->buildConfigurationForm($form, $form_state);
+    }
+
+    return parent::form($form, $form_state);
+  }
+
+  /**
+   * Determines if the action already exists.
+   *
+   * @param string $id
+   *   The action ID
+   *
+   * @return bool
+   *   TRUE if the action exists, FALSE otherwise.
+   */
+  public function exists($id) {
+    $action = $this->storage->load($id);
+    return !empty($action);
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  protected function actions(array $form, FormStateInterface $form_state) {
+    $actions = parent::actions($form, $form_state);
+    unset($actions['delete']);
+    return $actions;
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  public function validateForm(array &$form, FormStateInterface $form_state) {
+    parent::validateForm($form, $form_state);
+
+    if ($this->plugin instanceof PluginFormInterface) {
+      $this->plugin->validateConfigurationForm($form, $form_state);
+    }
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  public function submitForm(array &$form, FormStateInterface $form_state) {
+    parent::submitForm($form, $form_state);
+
+    if ($this->plugin instanceof PluginFormInterface) {
+      $this->plugin->submitConfigurationForm($form, $form_state);
+    }
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  public function save(array $form, FormStateInterface $form_state) {
+    $this->entity->save();
+    drupal_set_message($this->t('The action has been successfully saved.'));
+
+    $form_state->setRedirect('entity.action.collection');
+  }
+
+}

web/core/modules/action/src/ActionListBuilder.php

@@ -0,0 +1,120 @@
+<?php
+
+namespace Drupal\action;
+
+use Drupal\Core\Action\ActionManager;
+use Drupal\Core\Entity\EntityInterface;
+use Drupal\Core\Config\Entity\ConfigEntityListBuilder;
+use Drupal\Core\Entity\EntityStorageInterface;
+use Drupal\Core\Entity\EntityTypeInterface;
+use Symfony\Component\DependencyInjection\ContainerInterface;
+
+/**
+ * Defines a class to build a listing of action entities.
+ *
+ * @see \Drupal\system\Entity\Action
+ * @see action_entity_info()
+ */
+class ActionListBuilder extends ConfigEntityListBuilder {
+
+  /**
+   * @var bool
+   */
+  protected $hasConfigurableActions = FALSE;
+
+  /**
+   * The action plugin manager.
+   *
+   * @var \Drupal\Core\Action\ActionManager
+   */
+  protected $actionManager;
+
+  /**
+   * Constructs a new ActionListBuilder object.
+   *
+   * @param \Drupal\Core\Entity\EntityTypeInterface $entity_type
+   *   The entity type definition.
+   * @param \Drupal\Core\Entity\EntityStorageInterface $storage
+   *   The action storage.
+   * @param \Drupal\Core\Action\ActionManager $action_manager
+   *   The action plugin manager.
+   */
+  public function __construct(EntityTypeInterface $entity_type, EntityStorageInterface $storage, ActionManager $action_manager) {
+    parent::__construct($entity_type, $storage);
+
+    $this->actionManager = $action_manager;
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  public static function createInstance(ContainerInterface $container, EntityTypeInterface $entity_type) {
+    return new static(
+      $entity_type,
+      $container->get('entity.manager')->getStorage($entity_type->id()),
+      $container->get('plugin.manager.action')
+    );
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  public function load() {
+    $entities = parent::load();
+    foreach ($entities as $entity) {
+      if ($entity->isConfigurable()) {
+        $this->hasConfigurableActions = TRUE;
+        continue;
+      }
+    }
+    return $entities;
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  public function buildRow(EntityInterface $entity) {
+    $row['type'] = $entity->getType();
+    $row['label'] = $entity->label();
+    if ($this->hasConfigurableActions) {
+      $row += parent::buildRow($entity);
+    }
+    return $row;
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  public function buildHeader() {
+    $header = array(
+      'type' => t('Action type'),
+      'label' => t('Label'),
+    ) + parent::buildHeader();
+    return $header;
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  public function getDefaultOperations(EntityInterface $entity) {
+    $operations = $entity->isConfigurable() ? parent::getDefaultOperations($entity) : array();
+    if (isset($operations['edit'])) {
+      $operations['edit']['title'] = t('Configure');
+    }
+    return $operations;
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  public function render() {
+    $build['action_header']['#markup'] = '<h3>' . $this->t('Available actions:') . '</h3>';
+    $build['action_table'] = parent::render();
+    if (!$this->hasConfigurableActions) {
+      unset($build['action_table']['table']['#header']['operations']);
+    }
+    $build['action_admin_manage_form'] = \Drupal::formBuilder()->getForm('Drupal\action\Form\ActionAdminManageForm');
+    return $build;
+  }
+
+}

web/core/modules/action/src/Form/ActionAdminManageForm.php

@@ -0,0 +1,95 @@
+<?php
+
+namespace Drupal\action\Form;
+
+use Drupal\Core\Form\FormBase;
+use Drupal\Component\Utility\Crypt;
+use Drupal\Core\Action\ActionManager;
+use Drupal\Core\Form\FormStateInterface;
+use Symfony\Component\DependencyInjection\ContainerInterface;
+
+/**
+ * Provides a configuration form for configurable actions.
+ */
+class ActionAdminManageForm extends FormBase {
+
+  /**
+   * The action plugin manager.
+   *
+   * @var \Drupal\Core\Action\ActionManager
+   */
+  protected $manager;
+
+  /**
+   * Constructs a new ActionAdminManageForm.
+   *
+   * @param \Drupal\Core\Action\ActionManager $manager
+   *   The action plugin manager.
+   */
+  public function __construct(ActionManager $manager) {
+    $this->manager = $manager;
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  public static function create(ContainerInterface $container) {
+    return new static(
+      $container->get('plugin.manager.action')
+    );
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  public function getFormId() {
+    return 'action_admin_manage';
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  public function buildForm(array $form, FormStateInterface $form_state) {
+    $actions = array();
+    foreach ($this->manager->getDefinitions() as $id => $definition) {
+      if (is_subclass_of($definition['class'], '\Drupal\Core\Plugin\PluginFormInterface')) {
+        $key = Crypt::hashBase64($id);
+        $actions[$key] = $definition['label'] . '...';
+      }
+    }
+    $form['parent'] = array(
+      '#type' => 'details',
+      '#title' => $this->t('Create an advanced action'),
+      '#attributes' => array('class' => array('container-inline')),
+      '#open' => TRUE,
+    );
+    $form['parent']['action'] = array(
+      '#type' => 'select',
+      '#title' => $this->t('Action'),
+      '#title_display' => 'invisible',
+      '#options' => $actions,
+      '#empty_option' => $this->t('Choose an advanced action'),
+    );
+    $form['parent']['actions'] = array(
+      '#type' => 'actions'
+    );
+    $form['parent']['actions']['submit'] = array(
+      '#type' => 'submit',
+      '#value' => $this->t('Create'),
+    );
+    return $form;
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  public function submitForm(array &$form, FormStateInterface $form_state) {
+    if ($form_state->getValue('action')) {
+      $form_state->setRedirect(
+        'action.admin_add',
+        array('action_id' => $form_state->getValue('action'))
+      );
+    }
+  }
+
+}

web/core/modules/action/src/Form/ActionDeleteForm.php

@@ -0,0 +1,20 @@
+<?php
+
+namespace Drupal\action\Form;
+
+use Drupal\Core\Entity\EntityDeleteForm;
+use Drupal\Core\Url;
+
+/**
+ * Builds a form to delete an action.
+ */
+class ActionDeleteForm extends EntityDeleteForm {
+
+  /**
+   * {@inheritdoc}
+   */
+  public function getCancelUrl() {
+    return new Url('entity.action.collection');
+  }
+
+}

web/core/modules/action/src/Plugin/Action/EmailAction.php

@@ -0,0 +1,217 @@
+<?php
+
+namespace Drupal\action\Plugin\Action;
+
+use Drupal\Component\Render\PlainTextOutput;
+use Drupal\Core\Access\AccessResult;
+use Drupal\Core\Action\ConfigurableActionBase;
+use Drupal\Core\Entity\EntityManagerInterface;
+use Drupal\Core\Form\FormStateInterface;
+use Drupal\Core\Language\LanguageManagerInterface;
+use Drupal\Core\Mail\MailManagerInterface;
+use Drupal\Core\Plugin\ContainerFactoryPluginInterface;
+use Drupal\Core\Session\AccountInterface;
+use Drupal\Core\Utility\Token;
+use Psr\Log\LoggerInterface;
+use Egulias\EmailValidator\EmailValidator;
+use Symfony\Component\DependencyInjection\ContainerInterface;
+
+/**
+ * Sends an email message.
+ *
+ * @Action(
+ *   id = "action_send_email_action",
+ *   label = @Translation("Send email"),
+ *   type = "system"
+ * )
+ */
+class EmailAction extends ConfigurableActionBase implements ContainerFactoryPluginInterface {
+
+  /**
+   * The token service.
+   *
+   * @var \Drupal\Core\Utility\Token
+   */
+  protected $token;
+
+  /**
+   * The user storage.
+   *
+   * @var \Drupal\Core\Entity\EntityStorageInterface
+   */
+  protected $storage;
+
+  /**
+   * A logger instance.
+   *
+   * @var \Psr\Log\LoggerInterface
+   */
+  protected $logger;
+
+  /**
+   * The mail manager
+   *
+   * @var \Drupal\Core\Mail\MailManagerInterface
+   */
+  protected $mailManager;
+
+  /**
+   * The language manager.
+   *
+   * @var \Drupal\Core\Language\LanguageManagerInterface
+   */
+  protected $languageManager;
+
+  /**
+   * The email validator.
+   *
+   * @var \Egulias\EmailValidator\EmailValidator
+   */
+  protected $emailValidator;
+
+  /**
+   * Constructs a EmailAction object.
+   *
+   * @param array $configuration
+   *   A configuration array containing information about the plugin instance.
+   * @param string $plugin_id
+   *   The plugin ID for the plugin instance.
+   * @param mixed $plugin_definition
+   *   The plugin implementation definition.
+   * @param \Drupal\Core\Utility\Token $token
+   *   The token service.
+   * @param \Drupal\Core\Entity\EntityManagerInterface $entity_manager
+   *   The entity manager.
+   * @param \Psr\Log\LoggerInterface $logger
+   *   A logger instance.
+   * @param \Drupal\Core\Mail\MailManagerInterface $mail_manager
+   *   The mail manager.
+   * @param \Drupal\Core\Language\LanguageManagerInterface $language_manager
+   *   The language manager.
+   * @param \Egulias\EmailValidator\EmailValidator $email_validator
+   *   The email validator.
+   */
+  public function __construct(array $configuration, $plugin_id, $plugin_definition, Token $token, EntityManagerInterface $entity_manager, LoggerInterface $logger, MailManagerInterface $mail_manager, LanguageManagerInterface $language_manager, EmailValidator $email_validator) {
+    parent::__construct($configuration, $plugin_id, $plugin_definition);
+
+    $this->token = $token;
+    $this->storage = $entity_manager->getStorage('user');
+    $this->logger = $logger;
+    $this->mailManager = $mail_manager;
+    $this->languageManager = $language_manager;
+    $this->emailValidator = $email_validator;
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  public static function create(ContainerInterface $container, array $configuration, $plugin_id, $plugin_definition) {
+    return new static($configuration, $plugin_id, $plugin_definition,
+      $container->get('token'),
+      $container->get('entity.manager'),
+      $container->get('logger.factory')->get('action'),
+      $container->get('plugin.manager.mail'),
+      $container->get('language_manager'),
+      $container->get('email.validator')
+    );
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  public function execute($entity = NULL) {
+    if (empty($this->configuration['node'])) {
+      $this->configuration['node'] = $entity;
+    }
+
+    $recipient = PlainTextOutput::renderFromHtml($this->token->replace($this->configuration['recipient'], $this->configuration));
+
+    // If the recipient is a registered user with a language preference, use
+    // the recipient's preferred language. Otherwise, use the system default
+    // language.
+    $recipient_accounts = $this->storage->loadByProperties(array('mail' => $recipient));
+    $recipient_account = reset($recipient_accounts);
+    if ($recipient_account) {
+      $langcode = $recipient_account->getPreferredLangcode();
+    }
+    else {
+      $langcode = $this->languageManager->getDefaultLanguage()->getId();
+    }
+    $params = array('context' => $this->configuration);
+
+    if ($this->mailManager->mail('system', 'action_send_email', $recipient, $langcode, $params)) {
+      $this->logger->notice('Sent email to %recipient', array('%recipient' => $recipient));
+    }
+    else {
+      $this->logger->error('Unable to send email to %recipient', array('%recipient' => $recipient));
+    }
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  public function defaultConfiguration() {
+    return array(
+      'recipient' => '',
+      'subject' => '',
+      'message' => '',
+    );
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  public function buildConfigurationForm(array $form, FormStateInterface $form_state) {
+    $form['recipient'] = array(
+      '#type' => 'textfield',
+      '#title' => t('Recipient'),
+      '#default_value' => $this->configuration['recipient'],
+      '#maxlength' => '254',
+      '#description' => t('The email address to which the message should be sent OR enter [node:author:mail], [comment:author:mail], etc. if you would like to send an email to the author of the original post.'),
+    );
+    $form['subject'] = array(
+      '#type' => 'textfield',
+      '#title' => t('Subject'),
+      '#default_value' => $this->configuration['subject'],
+      '#maxlength' => '254',
+      '#description' => t('The subject of the message.'),
+    );
+    $form['message'] = array(
+      '#type' => 'textarea',
+      '#title' => t('Message'),
+      '#default_value' => $this->configuration['message'],
+      '#cols' => '80',
+      '#rows' => '20',
+      '#description' => t('The message that should be sent. You may include placeholders like [node:title], [user:account-name], [user:display-name] and [comment:body] to represent data that will be different each time message is sent. Not all placeholders will be available in all contexts.'),
+    );
+    return $form;
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  public function validateConfigurationForm(array &$form, FormStateInterface $form_state) {
+    if (!$this->emailValidator->isValid($form_state->getValue('recipient')) && strpos($form_state->getValue('recipient'), ':mail') === FALSE) {
+      // We want the literal %author placeholder to be emphasized in the error message.
+      $form_state->setErrorByName('recipient', t('Enter a valid email address or use a token email address such as %author.', array('%author' => '[node:author:mail]')));
+    }
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  public function submitConfigurationForm(array &$form, FormStateInterface $form_state) {
+    $this->configuration['recipient'] = $form_state->getValue('recipient');
+    $this->configuration['subject'] = $form_state->getValue('subject');
+    $this->configuration['message'] = $form_state->getValue('message');
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  public function access($object, AccountInterface $account = NULL, $return_as_object = FALSE) {
+    $result = AccessResult::allowed();
+    return $return_as_object ? $result : $result->isAllowed();
+  }
+
+}

web/core/modules/action/src/Plugin/Action/GotoAction.php

@@ -0,0 +1,140 @@
+<?php
+
+namespace Drupal\action\Plugin\Action;
+
+use Drupal\Component\Utility\UrlHelper;
+use Drupal\Core\Access\AccessResult;
+use Drupal\Core\Action\ConfigurableActionBase;
+use Drupal\Core\Form\FormStateInterface;
+use Drupal\Core\Plugin\ContainerFactoryPluginInterface;
+use Drupal\Core\Session\AccountInterface;
+use Drupal\Core\Utility\UnroutedUrlAssemblerInterface;
+use Symfony\Component\DependencyInjection\ContainerInterface;
+use Symfony\Component\EventDispatcher\EventDispatcherInterface;
+use Symfony\Component\HttpFoundation\RedirectResponse;
+use Symfony\Component\HttpKernel\KernelEvents;
+
+/**
+ * Redirects to a different URL.
+ *
+ * @Action(
+ *   id = "action_goto_action",
+ *   label = @Translation("Redirect to URL"),
+ *   type = "system"
+ * )
+ */
+class GotoAction extends ConfigurableActionBase implements ContainerFactoryPluginInterface {
+
+  /**
+   * The event dispatcher service.
+   *
+   * @var \Symfony\Component\EventDispatcher\EventDispatcherInterface
+   */
+  protected $dispatcher;
+
+  /**
+   * The unrouted URL assembler service.
+   *
+   * @var \Drupal\Core\Utility\UnroutedUrlAssemblerInterface
+   */
+  protected $unroutedUrlAssembler;
+
+  /**
+   * Constructs a new DeleteNode object.
+   *
+   * @param array $configuration
+   *   A configuration array containing information about the plugin instance.
+   * @param string $plugin_id
+   *   The plugin ID for the plugin instance.
+   * @param mixed $plugin_definition
+   *   The plugin implementation definition.
+   * @param \Symfony\Component\EventDispatcher\EventDispatcherInterface $dispatcher
+   *   The tempstore factory.
+   * @param \Drupal\Core\Utility\UnroutedUrlAssemblerInterface $url_assembler
+   *   The unrouted URL assembler service.
+   */
+  public function __construct(array $configuration, $plugin_id, $plugin_definition, EventDispatcherInterface $dispatcher, UnroutedUrlAssemblerInterface $url_assembler) {
+    parent::__construct($configuration, $plugin_id, $plugin_definition);
+
+    $this->dispatcher = $dispatcher;
+    $this->unroutedUrlAssembler = $url_assembler;
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  public static function create(ContainerInterface $container, array $configuration, $plugin_id, $plugin_definition) {
+    return new static($configuration, $plugin_id, $plugin_definition, $container->get('event_dispatcher'), $container->get('unrouted_url_assembler'));
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  public function execute($object = NULL) {
+    $url = $this->configuration['url'];
+    // Leave external URLs unchanged, and assemble others as absolute URLs
+    // relative to the site's base URL.
+    if (!UrlHelper::isExternal($url)) {
+      $parts = UrlHelper::parse($url);
+      // @todo '<front>' is valid input for BC reasons, may be removed by
+      //   https://www.drupal.org/node/2421941
+      if ($parts['path'] === '<front>') {
+        $parts['path'] = '';
+      }
+      $uri = 'base:' . $parts['path'];
+      $options = [
+        'query' => $parts['query'],
+        'fragment' => $parts['fragment'],
+        'absolute' => TRUE,
+      ];
+      // Treat this as if it's user input of a path relative to the site's
+      // base URL.
+      $url = $this->unroutedUrlAssembler->assemble($uri, $options);
+    }
+    $response = new RedirectResponse($url);
+    $listener = function($event) use ($response) {
+      $event->setResponse($response);
+    };
+    // Add the listener to the event dispatcher.
+    $this->dispatcher->addListener(KernelEvents::RESPONSE, $listener);
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  public function defaultConfiguration() {
+    return array(
+      'url' => '',
+    );
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  public function buildConfigurationForm(array $form, FormStateInterface $form_state) {
+    $form['url'] = array(
+      '#type' => 'textfield',
+      '#title' => t('URL'),
+      '#description' => t('The URL to which the user should be redirected. This can be an internal URL like /node/1234 or an external URL like @url.', array('@url' => 'http://example.com')),
+      '#default_value' => $this->configuration['url'],
+      '#required' => TRUE,
+    );
+    return $form;
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  public function submitConfigurationForm(array &$form, FormStateInterface $form_state) {
+    $this->configuration['url'] = $form_state->getValue('url');
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  public function access($object, AccountInterface $account = NULL, $return_as_object = FALSE) {
+    $access = AccessResult::allowed();
+    return $return_as_object ? $access : $access->isAllowed();
+  }
+
+}

web/core/modules/action/src/Plugin/Action/MessageAction.php

@@ -0,0 +1,123 @@
+<?php
+
+namespace Drupal\action\Plugin\Action;
+
+use Drupal\Core\Access\AccessResult;
+use Drupal\Core\Action\ConfigurableActionBase;
+use Drupal\Core\Form\FormStateInterface;
+use Drupal\Core\Plugin\ContainerFactoryPluginInterface;
+use Drupal\Core\Render\RendererInterface;
+use Drupal\Core\Session\AccountInterface;
+use Drupal\Core\Utility\Token;
+use Symfony\Component\DependencyInjection\ContainerInterface;
+
+/**
+ * Sends a message to the current user's screen.
+ *
+ * @Action(
+ *   id = "action_message_action",
+ *   label = @Translation("Display a message to the user"),
+ *   type = "system"
+ * )
+ */
+class MessageAction extends ConfigurableActionBase implements ContainerFactoryPluginInterface {
+
+  /**
+   * The token service.
+   *
+   * @var \Drupal\Core\Utility\Token
+   */
+  protected $token;
+
+  /**
+   * The renderer.
+   *
+   * @var \Drupal\Core\Render\RendererInterface
+   */
+  protected $renderer;
+
+  /**
+   * Constructs a MessageAction object.
+   *
+   * @param array $configuration
+   *   A configuration array containing information about the plugin instance.
+   * @param string $plugin_id
+   *   The plugin_id for the plugin instance.
+   * @param mixed $plugin_definition
+   *   The plugin implementation definition.
+   * @param \Drupal\Core\Utility\Token $token
+   *   The token service.
+   * @param \Drupal\Core\Render\RendererInterface $renderer
+   *   The renderer.
+   */
+  public function __construct(array $configuration, $plugin_id, $plugin_definition, Token $token, RendererInterface $renderer) {
+    parent::__construct($configuration, $plugin_id, $plugin_definition);
+
+    $this->token = $token;
+    $this->renderer = $renderer;
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  public static function create(ContainerInterface $container, array $configuration, $plugin_id, $plugin_definition) {
+    return new static($configuration, $plugin_id, $plugin_definition, $container->get('token'), $container->get('renderer'));
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  public function execute($entity = NULL) {
+    if (empty($this->configuration['node'])) {
+      $this->configuration['node'] = $entity;
+    }
+    $message = $this->token->replace($this->configuration['message'], $this->configuration);
+    $build = [
+      '#markup' => $message,
+    ];
+
+    // @todo Fix in https://www.drupal.org/node/2577827
+    drupal_set_message($this->renderer->renderPlain($build));
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  public function defaultConfiguration() {
+    return array(
+      'message' => '',
+    );
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  public function buildConfigurationForm(array $form, FormStateInterface $form_state) {
+    $form['message'] = array(
+      '#type' => 'textarea',
+      '#title' => t('Message'),
+      '#default_value' => $this->configuration['message'],
+      '#required' => TRUE,
+      '#rows' => '8',
+      '#description' => t('The message to be displayed to the current user. You may include placeholders like [node:title], [user:account-name], [user:display-name] and [comment:body] to represent data that will be different each time message is sent. Not all placeholders will be available in all contexts.'),
+    );
+    return $form;
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  public function submitConfigurationForm(array &$form, FormStateInterface $form_state) {
+    $this->configuration['message'] = $form_state->getValue('message');
+    unset($this->configuration['node']);
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  public function access($object, AccountInterface $account = NULL, $return_as_object = FALSE) {
+    $result = AccessResult::allowed();
+    return $return_as_object ? $result : $result->isAllowed();
+  }
+
+}

web/core/modules/action/src/Plugin/migrate/source/Action.php

@@ -0,0 +1,69 @@
+<?php
+
+namespace Drupal\action\Plugin\migrate\source;
+
+use Drupal\migrate_drupal\Plugin\migrate\source\DrupalSqlBase;
+use Drupal\migrate\Row;
+
+/**
+ * Drupal action source from database.
+ *
+ * @MigrateSource(
+ *   id = "action",
+ *   source_provider = "system"
+ * )
+ */
+class Action extends DrupalSqlBase {
+
+  /**
+   * {@inheritdoc}
+   */
+  public function query() {
+    return $this->select('actions', 'a')
+      ->fields('a');
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  public function fields() {
+    $fields = array(
+      'aid' => $this->t('Action ID'),
+      'type' => $this->t('Module'),
+      'callback' => $this->t('Callback function'),
+      'parameters' => $this->t('Action configuration'),
+    );
+    if ($this->getModuleSchemaVersion('system') >= 7000) {
+      $fields['label'] = $this->t('Label of the action');
+    }
+    else {
+      $fields['description'] = $this->t('Action description');
+    }
+    return $fields;
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  public function getIds() {
+    $ids['aid']['type'] = 'string';
+    return $ids;
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  public function prepareRow(Row $row) {
+    $aid = $row->getSourceProperty('aid');
+    if (is_numeric($aid)) {
+      if ($this->getModuleSchemaVersion('system') >= 7000) {
+        $label = $row->getSourceProperty('label');
+      }
+      else {
+        $label = $row->getSourceProperty('description');
+      }
+      $row->setSourceProperty('aid', $label);
+    }
+  }
+
+}

web/core/modules/action/src/Tests/ActionListTest.php

@@ -0,0 +1,37 @@
+<?php
+
+namespace Drupal\action\Tests;
+
+use Drupal\simpletest\WebTestBase;
+
+/**
+ * Test behaviors when visiting the action listing page.
+ *
+ * @group action
+ */
+class ActionListTest extends WebTestBase {
+
+  /**
+   * Modules to install.
+   *
+   * @var array
+   */
+  public static $modules = array('action');
+
+  /**
+   * Tests the behavior when there are no actions to list in the admin page.
+   */
+  public function testEmptyActionList() {
+    // Create a user with permission to view the actions administration pages.
+    $this->drupalLogin($this->drupalCreateUser(['administer actions']));
+
+    // Ensure the empty text appears on the action list page.
+    /** @var $storage \Drupal\Core\Entity\EntityStorageInterface */
+    $storage = $this->container->get('entity.manager')->getStorage('action');
+    $actions  = $storage->loadMultiple();
+    $storage->delete($actions);
+    $this->drupalGet('/admin/config/system/actions');
+    $this->assertRaw('There is no Action yet.');
+  }
+
+}