application/front/controller/visitor/BookmarkListController.php

   1 <?php
   2
   3 declare(strict_types=1);
   4
   5 namespace Shaarli\Front\Controller\Visitor;
   6
   7 use Shaarli\Bookmark\Bookmark;
   8 use Shaarli\Bookmark\Exception\BookmarkNotFoundException;
   9 use Shaarli\Legacy\LegacyController;
  10 use Shaarli\Legacy\UnknowLegacyRouteException;
  11 use Shaarli\Render\TemplatePage;
  12 use Shaarli\Thumbnailer;
  13 use Slim\Http\Request;
  14 use Slim\Http\Response;
  15
  16 /**
  17  * Class BookmarkListController
  18  *
  19  * Slim controller used to render the bookmark list, the home page of Shaarli.
  20  * It also displays permalinks, and process legacy routes based on GET parameters.
  21  */
  22 class BookmarkListController extends ShaarliVisitorController
  23 {
  24     /**
  25      * GET / - Displays the bookmark list, with optional filter parameters.
  26      */
  27     public function index(Request $request, Response $response): Response
  28     {
  29         $legacyResponse = $this->processLegacyController($request, $response);
  30         if (null !== $legacyResponse) {
  31             return $legacyResponse;
  32         }
  33
  34         $formatter = $this->container->formatterFactory->getFormatter();
  35         $formatter->addContextData('base_path', $this->container->basePath);
  36
  37         $searchTags = escape(normalize_spaces($request->getParam('searchtags') ?? ''));
  38         $searchTerm = escape(normalize_spaces($request->getParam('searchterm') ?? ''));;
  39
  40         // Filter bookmarks according search parameters.
  41         $visibility = $this->container->sessionManager->getSessionParameter('visibility');
  42         $search = [
  43             'searchtags' => $searchTags,
  44             'searchterm' => $searchTerm,
  45         ];
  46         $linksToDisplay = $this->container->bookmarkService->search(
  47             $search,
  48             $visibility,
  49             false,
  50             !!$this->container->sessionManager->getSessionParameter('untaggedonly')
  51         ) ?? [];
  52
  53         // ---- Handle paging.
  54         $keys = [];
  55         foreach ($linksToDisplay as $key => $value) {
  56             $keys[] = $key;
  57         }
  58
  59         $linksPerPage = $this->container->sessionManager->getSessionParameter('LINKS_PER_PAGE', 20) ?: 20;
  60
  61         // Select articles according to paging.
  62         $pageCount = (int) ceil(count($keys) / $linksPerPage) ?: 1;
  63         $page = (int) $request->getParam('page') ?? 1;
  64         $page = $page < 1 ? 1 : $page;
  65         $page = $page > $pageCount ? $pageCount : $page;
  66
  67         // Start index.
  68         $i = ($page - 1) * $linksPerPage;
  69         $end = $i + $linksPerPage;
  70
  71         $linkDisp = [];
  72         $save = false;
  73         while ($i < $end && $i < count($keys)) {
  74             $save = $this->updateThumbnail($linksToDisplay[$keys[$i]], false) || $save;
  75             $link = $formatter->format($linksToDisplay[$keys[$i]]);
  76
  77             $linkDisp[$keys[$i]] = $link;
  78             $i++;
  79         }
  80
  81         if ($save) {
  82             $this->container->bookmarkService->save();
  83         }
  84
  85         // Compute paging navigation
  86         $searchtagsUrl = $searchTags === '' ? '' : '&searchtags=' . urlencode($searchTags);
  87         $searchtermUrl = $searchTerm === '' ? '' : '&searchterm=' . urlencode($searchTerm);
  88
  89         $previous_page_url = '';
  90         if ($i !== count($keys)) {
  91             $previous_page_url = '?page=' . ($page + 1) . $searchtermUrl . $searchtagsUrl;
  92         }
  93         $next_page_url = '';
  94         if ($page > 1) {
  95             $next_page_url = '?page=' . ($page - 1) . $searchtermUrl . $searchtagsUrl;
  96         }
  97
  98         // Fill all template fields.
  99         $data = array_merge(
 100             $this->initializeTemplateVars(),
 101             [
 102                 'previous_page_url' => $previous_page_url,
 103                 'next_page_url' => $next_page_url,
 104                 'page_current' => $page,
 105                 'page_max' => $pageCount,
 106                 'result_count' => count($linksToDisplay),
 107                 'search_term' => $searchTerm,
 108                 'search_tags' => $searchTags,
 109                 'visibility' => $visibility,
 110                 'links' => $linkDisp,
 111             ]
 112         );
 113
 114         if (!empty($searchTerm) || !empty($searchTags)) {
 115             $data['pagetitle'] = t('Search: ');
 116             $data['pagetitle'] .= ! empty($searchTerm) ? $searchTerm . ' ' : '';
 117             $bracketWrap = function ($tag) {
 118                 return '[' . $tag . ']';
 119             };
 120             $data['pagetitle'] .= ! empty($searchTags)
 121                 ? implode(' ', array_map($bracketWrap, preg_split('/\s+/', $searchTags))) . ' '
 122                 : '';
 123             $data['pagetitle'] .= '- ';
 124         }
 125
 126         $data['pagetitle'] = ($data['pagetitle'] ?? '') . $this->container->conf->get('general.title', 'Shaarli');
 127
 128         $this->executePageHooks('render_linklist', $data, TemplatePage::LINKLIST);
 129         $this->assignAllView($data);
 130
 131         return $response->write($this->render(TemplatePage::LINKLIST));
 132     }
 133
 134     /**
 135      * GET /shaare/{hash} - Display a single shaare
 136      */
 137     public function permalink(Request $request, Response $response, array $args): Response
 138     {
 139         try {
 140             $bookmark = $this->container->bookmarkService->findByHash($args['hash']);
 141         } catch (BookmarkNotFoundException $e) {
 142             $this->assignView('error_message', $e->getMessage());
 143
 144             return $response->write($this->render(TemplatePage::ERROR_404));
 145         }
 146
 147         $this->updateThumbnail($bookmark);
 148
 149         $formatter = $this->container->formatterFactory->getFormatter();
 150         $formatter->addContextData('base_path', $this->container->basePath);
 151
 152         $data = array_merge(
 153             $this->initializeTemplateVars(),
 154             [
 155                 'pagetitle' => $bookmark->getTitle() .' - '. $this->container->conf->get('general.title', 'Shaarli'),
 156                 'links' => [$formatter->format($bookmark)],
 157             ]
 158         );
 159
 160         $this->executePageHooks('render_linklist', $data, TemplatePage::LINKLIST);
 161         $this->assignAllView($data);
 162
 163         return $response->write($this->render(TemplatePage::LINKLIST));
 164     }
 165
 166     /**
 167      * Update the thumbnail of a single bookmark if necessary.
 168      */
 169     protected function updateThumbnail(Bookmark $bookmark, bool $writeDatastore = true): bool
 170     {
 171         // Logged in, thumbnails enabled, not a note, is HTTP
 172         // and (never retrieved yet or no valid cache file)
 173         if ($this->container->loginManager->isLoggedIn()
 174             && $this->container->conf->get('thumbnails.mode', Thumbnailer::MODE_NONE) !== Thumbnailer::MODE_NONE
 175             && false !== $bookmark->getThumbnail()
 176             && !$bookmark->isNote()
 177             && (null === $bookmark->getThumbnail() || !is_file($bookmark->getThumbnail()))
 178             && startsWith(strtolower($bookmark->getUrl()), 'http')
 179         ) {
 180             $bookmark->setThumbnail($this->container->thumbnailer->get($bookmark->getUrl()));
 181             $this->container->bookmarkService->set($bookmark, $writeDatastore);
 182
 183             return true;
 184         }
 185
 186         return false;
 187     }
 188
 189     /**
 190      * @return string[] Default template variables without values.
 191      */
 192     protected function initializeTemplateVars(): array
 193     {
 194         return [
 195             'previous_page_url' => '',
 196             'next_page_url' => '',
 197             'page_max' => '',
 198             'search_tags' => '',
 199             'result_count' => '',
 200         ];
 201     }
 202
 203     /**
 204      * Process legacy routes if necessary. They used query parameters.
 205      * If no legacy routes is passed, return null.
 206      */
 207     protected function processLegacyController(Request $request, Response $response): ?Response
 208     {
 209         // Legacy smallhash filter
 210         $queryString = $this->container->environment['QUERY_STRING'] ?? null;
 211         if (null !== $queryString && 1 === preg_match('/^([a-zA-Z0-9-_@]{6})($|&|#)/', $queryString, $match)) {
 212             return $this->redirect($response, '/shaare/' . $match[1]);
 213         }
 214
 215         // Legacy controllers (mostly used for redirections)
 216         if (null !== $request->getQueryParam('do')) {
 217             $legacyController = new LegacyController($this->container);
 218
 219             try {
 220                 return $legacyController->process($request, $response, $request->getQueryParam('do'));
 221             } catch (UnknowLegacyRouteException $e) {
 222                 // We ignore legacy 404
 223                 return null;
 224             }
 225         }
 226
 227         // Legacy GET admin routes
 228         $legacyGetRoutes = array_intersect(
 229             LegacyController::LEGACY_GET_ROUTES,
 230             array_keys($request->getQueryParams() ?? [])
 231         );
 232         if (1 === count($legacyGetRoutes)) {
 233             $legacyController = new LegacyController($this->container);
 234
 235             return $legacyController->process($request, $response, $legacyGetRoutes[0]);
 236         }
 237
 238         return null;
 239     }
 240 }