MyShaarli/application/front/controller/visitor/BookmarkListController.php

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PHP
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<?php
declare(strict_types=1);
namespace Shaarli\Front\Controller\Visitor;
use Shaarli\Bookmark\Bookmark;
use Shaarli\Bookmark\Exception\BookmarkNotFoundException;
use Shaarli\Legacy\LegacyController;
use Shaarli\Legacy\UnknowLegacyRouteException;
use Shaarli\Render\TemplatePage;
use Shaarli\Thumbnailer;
use Slim\Http\Request;
use Slim\Http\Response;
/**
* Class BookmarkListController
*
* Slim controller used to render the bookmark list, the home page of Shaarli.
* It also displays permalinks, and process legacy routes based on GET parameters.
*/
class BookmarkListController extends ShaarliVisitorController
{
/**
* GET / - Displays the bookmark list, with optional filter parameters.
*/
public function index(Request $request, Response $response): Response
{
$legacyResponse = $this->processLegacyController($request, $response);
if (null !== $legacyResponse) {
return $legacyResponse;
}
$formatter = $this->container->formatterFactory->getFormatter();
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$formatter->addContextData('base_path', $this->container->basePath);
$searchTags = normalize_spaces($request->getParam('searchtags') ?? '');
$searchTerm = escape(normalize_spaces($request->getParam('searchterm') ?? ''));;
// Filter bookmarks according search parameters.
$visibility = $this->container->sessionManager->getSessionParameter('visibility');
$search = [
'searchtags' => $searchTags,
'searchterm' => $searchTerm,
];
$linksToDisplay = $this->container->bookmarkService->search(
$search,
$visibility,
false,
!!$this->container->sessionManager->getSessionParameter('untaggedonly')
) ?? [];
// ---- Handle paging.
$keys = [];
foreach ($linksToDisplay as $key => $value) {
$keys[] = $key;
}
$linksPerPage = $this->container->sessionManager->getSessionParameter('LINKS_PER_PAGE', 20) ?: 20;
// Select articles according to paging.
$pageCount = (int) ceil(count($keys) / $linksPerPage) ?: 1;
$page = (int) $request->getParam('page') ?? 1;
$page = $page < 1 ? 1 : $page;
$page = $page > $pageCount ? $pageCount : $page;
// Start index.
$i = ($page - 1) * $linksPerPage;
$end = $i + $linksPerPage;
$linkDisp = [];
$save = false;
while ($i < $end && $i < count($keys)) {
$save = $this->updateThumbnail($linksToDisplay[$keys[$i]], false) || $save;
$link = $formatter->format($linksToDisplay[$keys[$i]]);
$linkDisp[$keys[$i]] = $link;
$i++;
}
if ($save) {
$this->container->bookmarkService->save();
}
// Compute paging navigation
$searchtagsUrl = $searchTags === '' ? '' : '&searchtags=' . urlencode($searchTags);
$searchtermUrl = $searchTerm === '' ? '' : '&searchterm=' . urlencode($searchTerm);
$previous_page_url = '';
if ($i !== count($keys)) {
$previous_page_url = '?page=' . ($page + 1) . $searchtermUrl . $searchtagsUrl;
}
$next_page_url = '';
if ($page > 1) {
$next_page_url = '?page=' . ($page - 1) . $searchtermUrl . $searchtagsUrl;
}
// Fill all template fields.
$data = array_merge(
$this->initializeTemplateVars(),
[
'previous_page_url' => $previous_page_url,
'next_page_url' => $next_page_url,
'page_current' => $page,
'page_max' => $pageCount,
'result_count' => count($linksToDisplay),
'search_term' => escape($searchTerm),
'search_tags' => escape($searchTags),
'search_tags_url' => array_map('urlencode', explode(' ', $searchTags)),
'visibility' => $visibility,
'links' => $linkDisp,
]
);
if (!empty($searchTerm) || !empty($searchTags)) {
$data['pagetitle'] = t('Search: ');
$data['pagetitle'] .= ! empty($searchTerm) ? $searchTerm . ' ' : '';
$bracketWrap = function ($tag) {
return '[' . $tag . ']';
};
$data['pagetitle'] .= ! empty($searchTags)
? implode(' ', array_map($bracketWrap, preg_split('/\s+/', $searchTags))) . ' '
: '';
$data['pagetitle'] .= '- ';
}
$data['pagetitle'] = ($data['pagetitle'] ?? '') . $this->container->conf->get('general.title', 'Shaarli');
$this->executePageHooks('render_linklist', $data, TemplatePage::LINKLIST);
$this->assignAllView($data);
return $response->write($this->render(TemplatePage::LINKLIST));
}
/**
* GET /shaare/{hash} - Display a single shaare
*/
public function permalink(Request $request, Response $response, array $args): Response
{
try {
$bookmark = $this->container->bookmarkService->findByHash($args['hash']);
} catch (BookmarkNotFoundException $e) {
$this->assignView('error_message', $e->getMessage());
return $response->write($this->render(TemplatePage::ERROR_404));
}
$this->updateThumbnail($bookmark);
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$formatter = $this->container->formatterFactory->getFormatter();
$formatter->addContextData('base_path', $this->container->basePath);
$data = array_merge(
$this->initializeTemplateVars(),
[
'pagetitle' => $bookmark->getTitle() .' - '. $this->container->conf->get('general.title', 'Shaarli'),
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'links' => [$formatter->format($bookmark)],
]
);
$this->executePageHooks('render_linklist', $data, TemplatePage::LINKLIST);
$this->assignAllView($data);
return $response->write($this->render(TemplatePage::LINKLIST));
}
/**
* Update the thumbnail of a single bookmark if necessary.
*/
protected function updateThumbnail(Bookmark $bookmark, bool $writeDatastore = true): bool
{
// Logged in, thumbnails enabled, not a note, is HTTP
// and (never retrieved yet or no valid cache file)
if ($this->container->loginManager->isLoggedIn()
&& $this->container->conf->get('thumbnails.mode', Thumbnailer::MODE_NONE) !== Thumbnailer::MODE_NONE
&& false !== $bookmark->getThumbnail()
&& !$bookmark->isNote()
&& (null === $bookmark->getThumbnail() || !is_file($bookmark->getThumbnail()))
&& startsWith(strtolower($bookmark->getUrl()), 'http')
) {
$bookmark->setThumbnail($this->container->thumbnailer->get($bookmark->getUrl()));
$this->container->bookmarkService->set($bookmark, $writeDatastore);
return true;
}
return false;
}
/**
* @return string[] Default template variables without values.
*/
protected function initializeTemplateVars(): array
{
return [
'previous_page_url' => '',
'next_page_url' => '',
'page_max' => '',
'search_tags' => '',
'result_count' => '',
];
}
/**
* Process legacy routes if necessary. They used query parameters.
* If no legacy routes is passed, return null.
*/
protected function processLegacyController(Request $request, Response $response): ?Response
{
// Legacy smallhash filter
$queryString = $this->container->environment['QUERY_STRING'] ?? null;
if (null !== $queryString && 1 === preg_match('/^([a-zA-Z0-9-_@]{6})($|&|#)/', $queryString, $match)) {
return $this->redirect($response, '/shaare/' . $match[1]);
}
// Legacy controllers (mostly used for redirections)
if (null !== $request->getQueryParam('do')) {
$legacyController = new LegacyController($this->container);
try {
return $legacyController->process($request, $response, $request->getQueryParam('do'));
} catch (UnknowLegacyRouteException $e) {
// We ignore legacy 404
return null;
}
}
// Legacy GET admin routes
$legacyGetRoutes = array_intersect(
LegacyController::LEGACY_GET_ROUTES,
array_keys($request->getQueryParams() ?? [])
);
if (1 === count($legacyGetRoutes)) {
$legacyController = new LegacyController($this->container);
return $legacyController->process($request, $response, $legacyGetRoutes[0]);
}
return null;
}
}