PHP _batch_page函数代码示例

 /**
  * Returns a system batch page.
  *
  * @param \Symfony\Component\HttpFoundation\Request $request
  *   The current request object.
  *
  * @return \Symfony\Component\HttpFoundation\Response|array
  *   A \Symfony\Component\HttpFoundation\Response object or render array.
  *
  * @throws \Symfony\Component\HttpKernel\Exception\AccessDeniedHttpException
  */
 public function batchPage(Request $request)
 {
     require_once $this->root . '/core/includes/batch.inc';
     $output = _batch_page($request);
     if ($output === FALSE) {
         throw new AccessDeniedHttpException();
     } elseif ($output instanceof Response) {
         return $output;
     } elseif (isset($output)) {
         $page = ['#type' => 'page', '#show_messages' => FALSE, 'content' => $output];
         return $page;
     }
 }

 /**
  * Returns a system batch page.
  *
  * @param \Symfony\Component\HttpFoundation\Request $request
  *   The current request object.
  *
  * @return mixed
  *   A \Symfony\Component\HttpFoundation\Response object or page element or
  *   NULL.
  *
  * @throws \Symfony\Component\HttpKernel\Exception\AccessDeniedHttpException
  */
 public function batchPage(Request $request)
 {
     require_once DRUPAL_ROOT . '/core/includes/batch.inc';
     $output = _batch_page($request);
     if ($output === FALSE) {
         throw new AccessDeniedHttpException();
     } elseif ($output instanceof Response) {
         return $output;
     } elseif (isset($output)) {
         // Force a page without blocks or messages to
         // display a list of collected messages later.
         drupal_set_page_content($output);
         $page = element_info('page');
         $page['#show_messages'] = FALSE;
         $page = $this->render($page);
         return $page;
     }
 }

/**
 * Tasks performed after the database is initialized.
 */
function install_tasks($profile, $task)
{
    global $base_url, $install_locale;
    // Bootstrap newly installed Drupal, while preserving existing messages.
    $messages = isset($_SESSION['messages']) ? $_SESSION['messages'] : '';
    drupal_bootstrap(DRUPAL_BOOTSTRAP_FULL);
    $_SESSION['messages'] = $messages;
    // URL used to direct page requests.
    $url = $base_url . '/install.php?locale=' . $install_locale . '&profile=' . $profile;
    // Build a page for final tasks.
    if (empty($task)) {
        variable_set('install_task', 'profile-install');
        $task = 'profile-install';
    }
    // We are using a list of if constructs here to allow for
    // passing from one task to the other in the same request.
    // Install profile modules.
    if ($task == 'profile-install') {
        $modules = variable_get('install_profile_modules', array());
        $files = module_rebuild_cache();
        variable_del('install_profile_modules');
        $operations = array();
        foreach ($modules as $module) {
            $operations[] = array('_install_module_batch', array($module, $files[$module]->info['name']));
        }
        $batch = array('operations' => $operations, 'finished' => '_install_profile_batch_finished', 'title' => st('Installing @drupal', array('@drupal' => drupal_install_profile_name())), 'error_message' => st('The installation has encountered an error.'));
        // Start a batch, switch to 'profile-install-batch' task. We need to
        // set the variable here, because batch_process() redirects.
        variable_set('install_task', 'profile-install-batch');
        batch_set($batch);
        batch_process($url, $url);
    }
    // We are running a batch install of the profile's modules.
    // This might run in multiple HTTP requests, constantly redirecting
    // to the same address, until the batch finished callback is invoked
    // and the task advances to 'locale-initial-import'.
    if ($task == 'profile-install-batch') {
        include_once 'includes/batch.inc';
        $output = _batch_page();
    }
    // Import interface translations for the enabled modules.
    if ($task == 'locale-initial-import') {
        if (!empty($install_locale) && $install_locale != 'en') {
            include_once 'includes/locale.inc';
            // Enable installation language as default site language.
            locale_add_language($install_locale, NULL, NULL, NULL, NULL, NULL, 1, TRUE);
            // Collect files to import for this language.
            $batch = locale_batch_by_language($install_locale, '_install_locale_initial_batch_finished');
            if (!empty($batch)) {
                // Remember components we cover in this batch set.
                variable_set('install_locale_batch_components', $batch['#components']);
                // Start a batch, switch to 'locale-batch' task. We need to
                // set the variable here, because batch_process() redirects.
                variable_set('install_task', 'locale-initial-batch');
                batch_set($batch);
                batch_process($url, $url);
            }
        }
        // Found nothing to import or not foreign language, go to next task.
        $task = 'configure';
    }
    if ($task == 'locale-initial-batch') {
        include_once 'includes/batch.inc';
        include_once 'includes/locale.inc';
        $output = _batch_page();
    }
    if ($task == 'configure') {
        if (variable_get('site_name', FALSE) || variable_get('site_mail', FALSE)) {
            // Site already configured: This should never happen, means re-running
            // the installer, possibly by an attacker after the 'install_task' variable
            // got accidentally blown somewhere. Stop it now.
            install_already_done_error();
        }
        $form = drupal_get_form('install_configure_form', $url);
        if (!variable_get('site_name', FALSE) && !variable_get('site_mail', FALSE)) {
            // Not submitted yet: Prepare to display the form.
            $output = $form;
            drupal_set_title(st('Configure site'));
            // Warn about settings.php permissions risk
            $settings_dir = './' . conf_path();
            $settings_file = $settings_dir . '/settings.php';
            if (!drupal_verify_install_file($settings_file, FILE_EXIST | FILE_READABLE | FILE_NOT_WRITABLE) || !drupal_verify_install_file($settings_dir, FILE_NOT_WRITABLE, 'dir')) {
                drupal_set_message(st('All necessary changes to %dir and %file have been made, so you should remove write permissions to them now in order to avoid security risks. If you are unsure how to do so, please consult the <a href="@handbook_url">on-line handbook</a>.', array('%dir' => $settings_dir, '%file' => $settings_file, '@handbook_url' => 'http://drupal.org/getting-started')), 'error');
            } else {
                drupal_set_message(st('All necessary changes to %dir and %file have been made. They have been set to read-only for security.', array('%dir' => $settings_dir, '%file' => $settings_file)));
            }
            // Add JavaScript validation.
            _user_password_dynamic_validation();
            drupal_add_js(drupal_get_path('module', 'system') . '/system.js', 'module');
            // We add these strings as settings because JavaScript translation does not
            // work on install time.
            drupal_add_js(array('copyFieldValue' => array('edit-site-mail' => array('edit-account-mail')), 'cleanURL' => array('success' => st('Your server has been successfully tested to support this feature.'), 'failure' => st('Your system configuration does not currently support this feature. The <a href="http://drupal.org/node/15365">handbook page on Clean URLs</a> has additional troubleshooting information.'), 'testing' => st('Testing clean URLs...'))), 'setting');
            drupal_add_js('
// Global Killswitch
if (Drupal.jsEnabled) {
  $(document).ready(function() {
    Drupal.cleanURLsInstallCheck();
//.........这里部分代码省略.........

 /**
  * Returns a database update page.
  *
  * @param string $op
  *   The update operation to perform. Can be any of the below:
  *    - info
  *    - selection
  *    - run
  *    - results
  * @param \Symfony\Component\HttpFoundation\Request $request
  *   The current request object.
  *
  * @return \Symfony\Component\HttpFoundation\Response
  *   A response object object.
  */
 public function handle($op, Request $request)
 {
     require_once $this->root . '/core/includes/install.inc';
     require_once $this->root . '/core/includes/update.inc';
     drupal_load_updates();
     update_fix_compatibility();
     if ($request->query->get('continue')) {
         $_SESSION['update_ignore_warnings'] = TRUE;
     }
     $regions = array();
     $requirements = update_check_requirements();
     $severity = drupal_requirements_severity($requirements);
     if ($severity == REQUIREMENT_ERROR || $severity == REQUIREMENT_WARNING && empty($_SESSION['update_ignore_warnings'])) {
         $regions['sidebar_first'] = $this->updateTasksList('requirements');
         $output = $this->requirements($severity, $requirements, $request);
     } else {
         switch ($op) {
             case 'selection':
                 $regions['sidebar_first'] = $this->updateTasksList('selection');
                 $output = $this->selection($request);
                 break;
             case 'run':
                 $regions['sidebar_first'] = $this->updateTasksList('run');
                 $output = $this->triggerBatch($request);
                 break;
             case 'info':
                 $regions['sidebar_first'] = $this->updateTasksList('info');
                 $output = $this->info($request);
                 break;
             case 'results':
                 $regions['sidebar_first'] = $this->updateTasksList('results');
                 $output = $this->results($request);
                 break;
                 // Regular batch ops : defer to batch processing API.
             // Regular batch ops : defer to batch processing API.
             default:
                 require_once $this->root . '/core/includes/batch.inc';
                 $regions['sidebar_first'] = $this->updateTasksList('run');
                 $output = _batch_page($request);
                 break;
         }
     }
     if ($output instanceof Response) {
         return $output;
     }
     $title = isset($output['#title']) ? $output['#title'] : $this->t('Drupal database update');
     return $this->bareHtmlPageRenderer->renderBarePage($output, $title, 'maintenance_page', $regions);
 }

        case 'selection':
            if (isset($_GET['token']) && $_GET['token'] == drupal_get_token('update')) {
                $output = update_selection_page();
                break;
            }
        case 'Apply pending updates':
            if (isset($_GET['token']) && $_GET['token'] == drupal_get_token('update')) {
                update_batch();
                break;
            }
        case 'info':
            $output = update_info_page();
            break;
        case 'results':
            $output = update_results_page();
            break;
            // Regular batch ops : defer to batch processing API
        // Regular batch ops : defer to batch processing API
        default:
            update_task_list('run');
            $output = _batch_page();
            break;
    }
} else {
    $output = update_access_denied_page();
}
if (isset($output) && $output) {
    // We defer the display of messages until all updates are done.
    $progress_page = ($batch = batch_get()) && isset($batch['running']);
    print theme('update_page', $output, !$progress_page);
}

/**
 * Run an individual installation task.
 *
 * @param $task
 *   An array of information about the task to be run.
 * @param $install_state
 *   An array of information about the current installation state. This is
 *   passed in by reference so that it can be modified by the task.
 * @return
 *   The output of the task function, if there is any.
 */
function install_run_task($task, &$install_state)
{
    $function = $task['function'];
    if ($task['type'] == 'form') {
        require_once DRUPAL_ROOT . '/includes/form.inc';
        if ($install_state['interactive']) {
            // For interactive forms, build the form and ensure that it will not
            // redirect, since the installer handles its own redirection only after
            // marking the form submission task complete.
            $form_state = array('args' => array(&$install_state), 'no_redirect' => TRUE);
            $form = drupal_build_form($function, $form_state);
            // If a successful form submission did not occur, the form needs to be
            // rendered, which means the task is not complete yet.
            if (empty($form_state['executed'])) {
                $install_state['task_not_complete'] = TRUE;
                return drupal_render($form);
            }
            // Otherwise, return nothing so the next task will run in the same
            // request.
            return;
        } else {
            // For non-interactive forms, submit the form programmatically with the
            // values taken from the installation state. Throw an exception if any
            // errors were encountered.
            $form_state = array('values' => !empty($install_state['forms'][$function]) ? $install_state['forms'][$function] : array());
            drupal_form_submit($function, $form_state, $install_state);
            $errors = form_get_errors();
            if (!empty($errors)) {
                throw new Exception(implode("\n", $errors));
            }
        }
    } elseif ($task['type'] == 'batch') {
        // Start a new batch based on the task function, if one is not running
        // already.
        $current_batch = variable_get('install_current_batch');
        if (!$install_state['interactive'] || !$current_batch) {
            $batch = $function($install_state);
            if (empty($batch)) {
                // If the task did some processing and decided no batch was necessary,
                // there is nothing more to do here.
                return;
            }
            batch_set($batch);
            // For interactive batches, we need to store the fact that this batch
            // task is currently running. Otherwise, we need to make sure the batch
            // will complete in one page request.
            if ($install_state['interactive']) {
                variable_set('install_current_batch', $function);
            } else {
                $batch =& batch_get();
                $batch['progressive'] = FALSE;
            }
            // Process the batch. For progressive batches, this will redirect.
            // Otherwise, the batch will complete.
            batch_process(install_redirect_url($install_state), install_full_redirect_url($install_state));
        } elseif ($current_batch == $function) {
            include_once DRUPAL_ROOT . '/includes/batch.inc';
            $output = _batch_page();
            // The task is complete when we try to access the batch page and receive
            // FALSE in return, since this means we are at a URL where we are no
            // longer requesting a batch ID.
            if ($output === FALSE) {
                // Return nothing so the next task will run in the same request.
                variable_del('install_current_batch');
                return;
            } else {
                // We need to force the page request to end if the task is not
                // complete, since the batch API sometimes prints JSON output
                // rather than returning a themed page.
                $install_state['task_not_complete'] = $install_state['stop_page_request'] = TRUE;
                return $output;
            }
        }
    } else {
        // For normal tasks, just return the function result, whatever it is.
        return $function($install_state);
    }
}

        }
        if (!empty($results['page_message'])) {
            drupal_set_message($results['page_message']['message'], $results['page_message']['type']);
        }
        $authorize_report = array('#theme' => 'authorize_report', '#messages' => $results['messages']);
        $output = drupal_render_root($authorize_report);
        $links = array();
        if (is_array($results['tasks'])) {
            $links += $results['tasks'];
        } else {
            $links = array_merge($links, array(\Drupal::l(t('Administration pages'), new Url('system.admin')), \Drupal::l(t('Front page'), new Url('<front>'))));
        }
        $item_list = array('#theme' => 'item_list', '#items' => $links, '#title' => t('Next steps'));
        $output .= drupal_render_root($item_list);
    } elseif ($request->query->has('batch')) {
        $output = _batch_page($request);
    } else {
        if (empty($_SESSION['authorize_operation']) || empty($_SESSION['authorize_filetransfer_info'])) {
            $output = t('It appears you have reached this page in error.');
        } elseif (!($batch = batch_get())) {
            // We have a batch to process, show the filetransfer form.
            $elements = \Drupal::formBuilder()->getForm('Drupal\\Core\\FileTransfer\\Form\\FileTransferAuthorizeForm');
            $output = drupal_render_root($elements);
        }
    }
    // We defer the display of messages until all operations are done.
    $show_messages = !(($batch = batch_get()) && isset($batch['running']));
} else {
    $response->setStatusCode(403);
    \Drupal::logger('access denied')->warning('authorize.php');
    $page_title = t('Access denied');

         drupal_set_message($results['page_message']['message'], $results['page_message']['type']);
     }
     $content['authorize_report'] = array('#theme' => 'authorize_report', '#messages' => $results['messages']);
     if (is_array($results['tasks'])) {
         $links = $results['tasks'];
     } else {
         // Since this is being called outsite of the primary front controller,
         // the base_url needs to be set explicitly to ensure that links are
         // relative to the site root.
         // @todo Simplify with https://www.drupal.org/node/2548095
         $default_options = ['#type' => 'link', '#options' => ['absolute' => TRUE, 'base_url' => $GLOBALS['base_url']]];
         $links = [$default_options + ['#url' => Url::fromRoute('system.admin'), '#title' => t('Administration pages')], $default_options + ['#url' => Url::fromRoute('<front>'), '#title' => t('Front page')]];
     }
     $content['next_steps'] = array('#theme' => 'item_list', '#items' => $links, '#title' => t('Next steps'));
 } elseif ($request->query->has('batch')) {
     $content = _batch_page($request);
     // If _batch_page() returns a response object (likely a JsonResponse for
     // JavaScript-based batch processing), send it immediately.
     if ($content instanceof Response) {
         $content->send();
         exit;
     }
 } else {
     if (empty($_SESSION['authorize_operation']) || empty($_SESSION['authorize_filetransfer_info'])) {
         $content = ['#markup' => t('It appears you have reached this page in error.')];
     } elseif (!($batch = batch_get())) {
         // We have a batch to process, show the filetransfer form.
         $content = \Drupal::formBuilder()->getForm('Drupal\\Core\\FileTransfer\\Form\\FileTransferAuthorizeForm');
     }
 }
 // We defer the display of messages until all operations are done.

        if (!empty($results['page_title'])) {
            $page_title = $results['page_title'];
        }
        if (!empty($results['page_message'])) {
            drupal_set_message($results['page_message']['message'], $results['page_message']['type']);
        }
        $content['authorize_report'] = array('#theme' => 'authorize_report', '#messages' => $results['messages']);
        $links = array();
        if (is_array($results['tasks'])) {
            $links += $results['tasks'];
        } else {
            $links = array_merge($links, array(\Drupal::l(t('Administration pages'), new Url('system.admin')), \Drupal::l(t('Front page'), new Url('<front>'))));
        }
        $content['next_steps'] = array('#theme' => 'item_list', '#items' => $links, '#title' => t('Next steps'));
    } elseif ($request->query->has('batch')) {
        $content = ['#markup' => _batch_page($request)];
    } else {
        if (empty($_SESSION['authorize_operation']) || empty($_SESSION['authorize_filetransfer_info'])) {
            $content = ['#markup' => t('It appears you have reached this page in error.')];
        } elseif (!($batch = batch_get())) {
            // We have a batch to process, show the filetransfer form.
            $content = \Drupal::formBuilder()->getForm('Drupal\\Core\\FileTransfer\\Form\\FileTransferAuthorizeForm');
        }
    }
    // We defer the display of messages until all operations are done.
    $show_messages = !(($batch = batch_get()) && isset($batch['running']));
} else {
    \Drupal::logger('access denied')->warning('authorize.php');
    $page_title = t('Access denied');
    $content = ['#markup' => t('You are not allowed to access this page.')];
}