80 lines
3 KiB
Plaintext
80 lines
3 KiB
Plaintext
|
<?php
|
||
|
|
|
||
|
|
/**
|
||
|
|
* @file
|
||
|
|
* Adds BigPipe no-JS detection.
|
||
|
|
*/
|
||
|
|
|
||
|
|
use Drupal\big_pipe\Render\Placeholder\BigPipeStrategy;
|
||
|
|
use Drupal\Core\Routing\RouteMatchInterface;
|
||
|
|
use Drupal\Core\Url;
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Implements hook_help().
|
||
|
|
*/
|
||
|
|
function big_pipe_help($route_name, RouteMatchInterface $route_match) {
|
||
|
|
switch ($route_name) {
|
||
|
|
case 'help.page.big_pipe':
|
||
|
|
$output = '<h3>' . t('About') . '</h3>';
|
||
|
|
$output .= '<p>' . t('The BigPipe module sends pages with dynamic content in a way that allows browsers to show them much faster. For more information, see the <a href=":big_pipe-documentation">online documentation for the BigPipe module</a>.', [':big_pipe-documentation' => 'https://www.drupal.org/documentation/modules/big_pipe']) . '</p>';
|
||
|
|
$output .= '<h3>' . t('Uses') . '</h3>';
|
||
|
|
$output .= '<dl>';
|
||
|
|
$output .= '<dt>' . t('Speeding up your site') . '</dt>';
|
||
|
|
$output .= '<dd>' . t('The module requires no configuration. Every part of the page contains metadata that allows BigPipe to figure this out on its own.') . '</dd>';
|
||
|
|
$output .= '</dl>';
|
||
|
|
|
||
|
|
return $output;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Implements hook_page_attachments().
|
||
|
|
*
|
||
|
|
* @see \Drupal\big_pipe\Controller\BigPipeController::setNoJsCookie()
|
||
|
|
*/
|
||
|
|
function big_pipe_page_attachments(array &$page) {
|
||
|
|
// Routes that don't use BigPipe also don't need no-JS detection.
|
||
|
|
if (\Drupal::routeMatch()->getRouteObject()->getOption('_no_big_pipe')) {
|
||
|
|
return;
|
||
|
|
}
|
||
|
|
|
||
|
|
$request = \Drupal::request();
|
||
|
|
// BigPipe is only used when there is an actual session, so only add the no-JS
|
||
|
|
// detection when there actually is a session.
|
||
|
|
// @see \Drupal\big_pipe\Render\Placeholder\BigPipeStrategy.
|
||
|
|
$session_exists = \Drupal::service('session_configuration')->hasSession($request);
|
||
|
|
$page['#cache']['contexts'][] = 'session.exists';
|
||
|
|
// Only do the no-JS detection while we don't know if there's no JS support:
|
||
|
|
// avoid endless redirect loops.
|
||
|
|
$has_big_pipe_nojs_cookie = $request->cookies->has(BigPipeStrategy::NOJS_COOKIE);
|
||
|
|
$page['#cache']['contexts'][] = 'cookies:' . BigPipeStrategy::NOJS_COOKIE;
|
||
|
|
if ($session_exists) {
|
||
|
|
if (!$has_big_pipe_nojs_cookie) {
|
||
|
|
// Let server set the BigPipe no-JS cookie.
|
||
|
|
$page['#attached']['html_head'][] = [
|
||
|
|
[
|
||
|
|
// Redirect through a 'Refresh' meta tag if JavaScript is disabled.
|
||
|
|
'#tag' => 'meta',
|
||
|
|
'#noscript' => TRUE,
|
||
|
|
'#attributes' => [
|
||
|
|
'http-equiv' => 'Refresh',
|
||
|
|
// @todo: Switch to Url::fromRoute() once https://www.drupal.org/node/2589967 is resolved.
|
||
|
|
'content' => '0; URL=' . Url::fromUri('internal:/big_pipe/no-js', ['query' => \Drupal::service('redirect.destination')->getAsArray()])->toString(),
|
||
|
|
],
|
||
|
|
],
|
||
|
|
'big_pipe_detect_nojs',
|
||
|
|
];
|
||
|
|
}
|
||
|
|
else {
|
||
|
|
// Let client delete the BigPipe no-JS cookie.
|
||
|
|
$page['#attached']['html_head'][] = [
|
||
|
|
[
|
||
|
|
'#tag' => 'script',
|
||
|
|
'#value' => 'document.cookie = "' . BigPipeStrategy::NOJS_COOKIE . '=1; path=/; expires=Thu, 01 Jan 1970 00:00:00 GMT"',
|
||
|
|
],
|
||
|
|
'big_pipe_detect_js',
|
||
|
|
];
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|