index.php

   1 <?php
   2 /**
   3  * Shaarli - The personal, minimalist, super-fast, database free, bookmarking service.
   4  *
   5  * Friendly fork by the Shaarli community:
   6  *  - https://github.com/shaarli/Shaarli
   7  *
   8  * Original project by sebsauvage.net:
   9  *  - http://sebsauvage.net/wiki/doku.php?id=php:shaarli
  10  *  - https://github.com/sebsauvage/Shaarli
  11  *
  12  * Licence: http://www.opensource.org/licenses/zlib-license.php
  13  */
  14
  15 // Set 'UTC' as the default timezone if it is not defined in php.ini
  16 // See http://php.net/manual/en/datetime.configuration.php#ini.date.timezone
  17 if (date_default_timezone_get() == '') {
  18     date_default_timezone_set('UTC');
  19 }
  20
  21 /*
  22  * PHP configuration
  23  */
  24
  25 // http://server.com/x/shaarli --> /shaarli/
  26 define('WEB_PATH', substr($_SERVER['REQUEST_URI'], 0, 1+strrpos($_SERVER['REQUEST_URI'], '/', 0)));
  27
  28 // High execution time in case of problematic imports/exports.
  29 ini_set('max_input_time', '60');
  30
  31 // Try to set max upload file size and read
  32 ini_set('memory_limit', '128M');
  33 ini_set('post_max_size', '16M');
  34 ini_set('upload_max_filesize', '16M');
  35
  36 // See all error except warnings
  37 error_reporting(E_ALL^E_WARNING);
  38
  39 // 3rd-party libraries
  40 if (! file_exists(__DIR__ . '/vendor/autoload.php')) {
  41     header('Content-Type: text/plain; charset=utf-8');
  42     echo "Error: missing Composer configuration\n\n"
  43         ."If you installed Shaarli through Git or using the development branch,\n"
  44         ."please refer to the installation documentation to install PHP"
  45         ." dependencies using Composer:\n"
  46         ."- https://shaarli.readthedocs.io/en/master/Server-configuration/\n"
  47         ."- https://shaarli.readthedocs.io/en/master/Download-and-Installation/";
  48     exit;
  49 }
  50 require_once 'inc/rain.tpl.class.php';
  51 require_once __DIR__ . '/vendor/autoload.php';
  52
  53 // Shaarli library
  54 require_once 'application/bookmark/LinkUtils.php';
  55 require_once 'application/config/ConfigPlugin.php';
  56 require_once 'application/http/HttpUtils.php';
  57 require_once 'application/http/UrlUtils.php';
  58 require_once 'application/updater/UpdaterUtils.php';
  59 require_once 'application/FileUtils.php';
  60 require_once 'application/TimeZone.php';
  61 require_once 'application/Utils.php';
  62
  63 use Shaarli\ApplicationUtils;
  64 use Shaarli\Bookmark\Bookmark;
  65 use Shaarli\Bookmark\BookmarkFileService;
  66 use Shaarli\Bookmark\BookmarkFilter;
  67 use Shaarli\Bookmark\BookmarkServiceInterface;
  68 use Shaarli\Bookmark\Exception\BookmarkNotFoundException;
  69 use Shaarli\Config\ConfigManager;
  70 use Shaarli\Container\ContainerBuilder;
  71 use Shaarli\Feed\CachedPage;
  72 use Shaarli\Feed\FeedBuilder;
  73 use Shaarli\Formatter\BookmarkMarkdownFormatter;
  74 use Shaarli\Formatter\FormatterFactory;
  75 use Shaarli\History;
  76 use Shaarli\Languages;
  77 use Shaarli\Netscape\NetscapeBookmarkUtils;
  78 use Shaarli\Plugin\PluginManager;
  79 use Shaarli\Render\PageBuilder;
  80 use Shaarli\Render\PageCacheManager;
  81 use Shaarli\Render\ThemeUtils;
  82 use Shaarli\Router;
  83 use Shaarli\Security\LoginManager;
  84 use Shaarli\Security\SessionManager;
  85 use Shaarli\Thumbnailer;
  86 use Shaarli\Updater\Updater;
  87 use Shaarli\Updater\UpdaterUtils;
  88 use Slim\App;
  89
  90 // Ensure the PHP version is supported
  91 try {
  92     ApplicationUtils::checkPHPVersion('7.1', PHP_VERSION);
  93 } catch (Exception $exc) {
  94     header('Content-Type: text/plain; charset=utf-8');
  95     echo $exc->getMessage();
  96     exit;
  97 }
  98
  99 define('SHAARLI_VERSION', ApplicationUtils::getVersion(__DIR__ .'/'. ApplicationUtils::$VERSION_FILE));
 100
 101 // Force cookie path (but do not change lifetime)
 102 $cookie = session_get_cookie_params();
 103 $cookiedir = '';
 104 if (dirname($_SERVER['SCRIPT_NAME']) != '/') {
 105     $cookiedir = dirname($_SERVER["SCRIPT_NAME"]).'/';
 106 }
 107 // Set default cookie expiration and path.
 108 session_set_cookie_params($cookie['lifetime'], $cookiedir, $_SERVER['SERVER_NAME']);
 109 // Set session parameters on server side.
 110 // Use cookies to store session.
 111 ini_set('session.use_cookies', 1);
 112 // Force cookies for session (phpsessionID forbidden in URL).
 113 ini_set('session.use_only_cookies', 1);
 114 // Prevent PHP form using sessionID in URL if cookies are disabled.
 115 ini_set('session.use_trans_sid', false);
 116
 117 session_name('shaarli');
 118 // Start session if needed (Some server auto-start sessions).
 119 if (session_status() == PHP_SESSION_NONE) {
 120     session_start();
 121 }
 122
 123 // Regenerate session ID if invalid or not defined in cookie.
 124 if (isset($_COOKIE['shaarli']) && !SessionManager::checkId($_COOKIE['shaarli'])) {
 125     session_regenerate_id(true);
 126     $_COOKIE['shaarli'] = session_id();
 127 }
 128
 129 $conf = new ConfigManager();
 130
 131 // In dev mode, throw exception on any warning
 132 if ($conf->get('dev.debug', false)) {
 133     // See all errors (for debugging only)
 134     error_reporting(-1);
 135
 136     set_error_handler(function($errno, $errstr, $errfile, $errline, array $errcontext) {
 137         throw new ErrorException($errstr, 0, $errno, $errfile, $errline);
 138     });
 139 }
 140
 141 $sessionManager = new SessionManager($_SESSION, $conf);
 142 $loginManager = new LoginManager($conf, $sessionManager);
 143 $loginManager->generateStaySignedInToken($_SERVER['REMOTE_ADDR']);
 144 $clientIpId = client_ip_id($_SERVER);
 145
 146 // LC_MESSAGES isn't defined without php-intl, in this case use LC_COLLATE locale instead.
 147 if (! defined('LC_MESSAGES')) {
 148     define('LC_MESSAGES', LC_COLLATE);
 149 }
 150
 151 // Sniff browser language and set date format accordingly.
 152 if (isset($_SERVER['HTTP_ACCEPT_LANGUAGE'])) {
 153     autoLocale($_SERVER['HTTP_ACCEPT_LANGUAGE']);
 154 }
 155
 156 new Languages(setlocale(LC_MESSAGES, 0), $conf);
 157
 158 $conf->setEmpty('general.timezone', date_default_timezone_get());
 159 $conf->setEmpty('general.title', t('Shared bookmarks on '). escape(index_url($_SERVER)));
 160 RainTPL::$tpl_dir = $conf->get('resource.raintpl_tpl').'/'.$conf->get('resource.theme').'/'; // template directory
 161 RainTPL::$cache_dir = $conf->get('resource.raintpl_tmp'); // cache directory
 162
 163 $pluginManager = new PluginManager($conf);
 164 $pluginManager->load($conf->get('general.enabled_plugins'));
 165
 166 date_default_timezone_set($conf->get('general.timezone', 'UTC'));
 167
 168 ob_start();  // Output buffering for the page cache.
 169
 170 // Prevent caching on client side or proxy: (yes, it's ugly)
 171 header("Last-Modified: " . gmdate("D, d M Y H:i:s") . " GMT");
 172 header("Cache-Control: no-store, no-cache, must-revalidate");
 173 header("Cache-Control: post-check=0, pre-check=0", false);
 174 header("Pragma: no-cache");
 175
 176 if (! is_file($conf->getConfigFileExt())) {
 177     // Ensure Shaarli has proper access to its resources
 178     $errors = ApplicationUtils::checkResourcePermissions($conf);
 179
 180     if ($errors != array()) {
 181         $message = '<p>'. t('Insufficient permissions:') .'</p><ul>';
 182
 183         foreach ($errors as $error) {
 184             $message .= '<li>'.$error.'</li>';
 185         }
 186         $message .= '</ul>';
 187
 188         header('Content-Type: text/html; charset=utf-8');
 189         echo $message;
 190         exit;
 191     }
 192
 193     // Display the installation form if no existing config is found
 194     install($conf, $sessionManager, $loginManager);
 195 }
 196
 197 $loginManager->checkLoginState($_COOKIE, $clientIpId);
 198
 199 /**
 200  * Adapter function to ensure compatibility with third-party templates
 201  *
 202  * @see https://github.com/shaarli/Shaarli/pull/1086
 203  *
 204  * @return bool true when the user is logged in, false otherwise
 205  */
 206 function isLoggedIn()
 207 {
 208     global $loginManager;
 209     return $loginManager->isLoggedIn();
 210 }
 211
 212
 213 // ------------------------------------------------------------------------------------------
 214 // Process login form: Check if login/password is correct.
 215 if (isset($_POST['login'])) {
 216     if (! $loginManager->canLogin($_SERVER)) {
 217         die(t('I said: NO. You are banned for the moment. Go away.'));
 218     }
 219     if (isset($_POST['password'])
 220         && $sessionManager->checkToken($_POST['token'])
 221         && $loginManager->checkCredentials($_SERVER['REMOTE_ADDR'], $clientIpId, $_POST['login'], $_POST['password'])
 222     ) {
 223         $loginManager->handleSuccessfulLogin($_SERVER);
 224
 225         $cookiedir = '';
 226         if (dirname($_SERVER['SCRIPT_NAME']) != '/') {
 227             // Note: Never forget the trailing slash on the cookie path!
 228             $cookiedir = dirname($_SERVER["SCRIPT_NAME"]) . '/';
 229         }
 230
 231         if (!empty($_POST['longlastingsession'])) {
 232             // Keep the session cookie even after the browser closes
 233             $sessionManager->setStaySignedIn(true);
 234             $expirationTime = $sessionManager->extendSession();
 235
 236             setcookie(
 237                 $loginManager::$STAY_SIGNED_IN_COOKIE,
 238                 $loginManager->getStaySignedInToken(),
 239                 $expirationTime,
 240                 WEB_PATH
 241             );
 242         } else {
 243             // Standard session expiration (=when browser closes)
 244             $expirationTime = 0;
 245         }
 246
 247         // Send cookie with the new expiration date to the browser
 248         session_destroy();
 249         session_set_cookie_params($expirationTime, $cookiedir, $_SERVER['SERVER_NAME']);
 250         session_start();
 251         session_regenerate_id(true);
 252
 253         // Optional redirect after login:
 254         if (isset($_GET['post'])) {
 255             $uri = './?post='. urlencode($_GET['post']);
 256             foreach (array('description', 'source', 'title', 'tags') as $param) {
 257                 if (!empty($_GET[$param])) {
 258                     $uri .= '&'.$param.'='.urlencode($_GET[$param]);
 259                 }
 260             }
 261             header('Location: '. $uri);
 262             exit;
 263         }
 264
 265         if (isset($_GET['edit_link'])) {
 266             header('Location: ./?edit_link='. escape($_GET['edit_link']));
 267             exit;
 268         }
 269
 270         if (isset($_POST['returnurl'])) {
 271             // Prevent loops over login screen.
 272             if (strpos($_POST['returnurl'], '/login') === false) {
 273                 header('Location: '. generateLocation($_POST['returnurl'], $_SERVER['HTTP_HOST']));
 274                 exit;
 275             }
 276         }
 277         header('Location: ./?');
 278         exit;
 279     } else {
 280         $loginManager->handleFailedLogin($_SERVER);
 281         $redir = '?username='. urlencode($_POST['login']);
 282         if (isset($_GET['post'])) {
 283             $redir .= '&post=' . urlencode($_GET['post']);
 284             foreach (array('description', 'source', 'title', 'tags') as $param) {
 285                 if (!empty($_GET[$param])) {
 286                     $redir .= '&' . $param . '=' . urlencode($_GET[$param]);
 287                 }
 288             }
 289         }
 290         // Redirect to login screen.
 291         echo '<script>alert("'. t("Wrong login/password.") .'");document.location=\'./login'.$redir.'\';</script>';
 292         exit;
 293     }
 294 }
 295
 296 // ------------------------------------------------------------------------------------------
 297 // Token management for XSRF protection
 298 // Token should be used in any form which acts on data (create,update,delete,import...).
 299 if (!isset($_SESSION['tokens'])) {
 300     $_SESSION['tokens']=array();  // Token are attached to the session.
 301 }
 302
 303 /**
 304  * Renders the linklist
 305  *
 306  * @param pageBuilder              $PAGE          pageBuilder instance.
 307  * @param BookmarkServiceInterface $linkDb        instance.
 308  * @param ConfigManager            $conf          Configuration Manager instance.
 309  * @param PluginManager            $pluginManager Plugin Manager instance.
 310  */
 311 function showLinkList($PAGE, $linkDb, $conf, $pluginManager, $loginManager)
 312 {
 313     buildLinkList($PAGE, $linkDb, $conf, $pluginManager, $loginManager);
 314     $PAGE->renderPage('linklist');
 315 }
 316
 317 /**
 318  * Render HTML page (according to URL parameters and user rights)
 319  *
 320  * @param ConfigManager            $conf           Configuration Manager instance.
 321  * @param PluginManager            $pluginManager  Plugin Manager instance,
 322  * @param BookmarkServiceInterface $bookmarkService
 323  * @param History                  $history        instance
 324  * @param SessionManager           $sessionManager SessionManager instance
 325  * @param LoginManager             $loginManager   LoginManager instance
 326  */
 327 function renderPage($conf, $pluginManager, $bookmarkService, $history, $sessionManager, $loginManager)
 328 {
 329     $pageCacheManager = new PageCacheManager($conf->get('resource.page_cache'), $loginManager->isLoggedIn());
 330     $updater = new Updater(
 331         UpdaterUtils::read_updates_file($conf->get('resource.updates')),
 332         $bookmarkService,
 333         $conf,
 334         $loginManager->isLoggedIn()
 335     );
 336     try {
 337         $newUpdates = $updater->update();
 338         if (! empty($newUpdates)) {
 339             UpdaterUtils::write_updates_file(
 340                 $conf->get('resource.updates'),
 341                 $updater->getDoneUpdates()
 342             );
 343
 344             $pageCacheManager->invalidateCaches();
 345         }
 346     } catch (Exception $e) {
 347         die($e->getMessage());
 348     }
 349
 350     $PAGE = new PageBuilder($conf, $_SESSION, $bookmarkService, $sessionManager->generateToken(), $loginManager->isLoggedIn());
 351     $PAGE->assign('linkcount', $bookmarkService->count(BookmarkFilter::$ALL));
 352     $PAGE->assign('privateLinkcount', $bookmarkService->count(BookmarkFilter::$PRIVATE));
 353     $PAGE->assign('plugin_errors', $pluginManager->getErrors());
 354
 355     // Determine which page will be rendered.
 356     $query = (isset($_SERVER['QUERY_STRING'])) ? $_SERVER['QUERY_STRING'] : '';
 357     $targetPage = Router::findPage($query, $_GET, $loginManager->isLoggedIn());
 358
 359     if (// if the user isn't logged in
 360         !$loginManager->isLoggedIn() &&
 361         // and Shaarli doesn't have public content...
 362         $conf->get('privacy.hide_public_links') &&
 363         // and is configured to enforce the login
 364         $conf->get('privacy.force_login') &&
 365         // and the current page isn't already the login page
 366         $targetPage !== Router::$PAGE_LOGIN &&
 367         // and the user is not requesting a feed (which would lead to a different content-type as expected)
 368         $targetPage !== Router::$PAGE_FEED_ATOM &&
 369         $targetPage !== Router::$PAGE_FEED_RSS
 370     ) {
 371         // force current page to be the login page
 372         $targetPage = Router::$PAGE_LOGIN;
 373     }
 374
 375     // Call plugin hooks for header, footer and includes, specifying which page will be rendered.
 376     // Then assign generated data to RainTPL.
 377     $common_hooks = array(
 378         'includes',
 379         'header',
 380         'footer',
 381     );
 382
 383     foreach ($common_hooks as $name) {
 384         $plugin_data = array();
 385         $pluginManager->executeHooks(
 386             'render_' . $name,
 387             $plugin_data,
 388             array(
 389                 'target' => $targetPage,
 390                 'loggedin' => $loginManager->isLoggedIn()
 391             )
 392         );
 393         $PAGE->assign('plugins_' . $name, $plugin_data);
 394     }
 395
 396     // -------- Display login form.
 397     if ($targetPage == Router::$PAGE_LOGIN) {
 398         header('Location: ./login');
 399         exit;
 400     }
 401     // -------- User wants to logout.
 402     if (isset($_SERVER['QUERY_STRING']) && startsWith($_SERVER['QUERY_STRING'], 'do=logout')) {
 403         header('Location: ./logout');
 404         exit;
 405     }
 406
 407     // -------- Picture wall
 408     if ($targetPage == Router::$PAGE_PICWALL) {
 409         header('Location: ./picture-wall');
 410         exit;
 411     }
 412
 413     // -------- Tag cloud
 414     if ($targetPage == Router::$PAGE_TAGCLOUD) {
 415         header('Location: ./tag-cloud');
 416         exit;
 417     }
 418
 419     // -------- Tag list
 420     if ($targetPage == Router::$PAGE_TAGLIST) {
 421         header('Location: ./tag-list');
 422         exit;
 423     }
 424
 425     // Daily page.
 426     if ($targetPage == Router::$PAGE_DAILY) {
 427         $dayParam = !empty($_GET['day']) ? '?day=' . escape($_GET['day']) : '';
 428         header('Location: ./daily'. $dayParam);
 429         exit;
 430     }
 431
 432     // ATOM and RSS feed.
 433     if ($targetPage == Router::$PAGE_FEED_ATOM || $targetPage == Router::$PAGE_FEED_RSS) {
 434         $feedType = $targetPage == Router::$PAGE_FEED_RSS ? FeedBuilder::$FEED_RSS : FeedBuilder::$FEED_ATOM;
 435
 436         header('Location: ./feed-'. $feedType .'?'. http_build_query($_GET));
 437         exit;
 438     }
 439
 440     // Display opensearch plugin (XML)
 441     if ($targetPage == Router::$PAGE_OPENSEARCH) {
 442         header('Content-Type: application/xml; charset=utf-8');
 443         $PAGE->assign('serverurl', index_url($_SERVER));
 444         $PAGE->renderPage('opensearch');
 445         exit;
 446     }
 447
 448     // -------- User clicks on a tag in a link: The tag is added to the list of searched tags (searchtags=...)
 449     if (isset($_GET['addtag'])) {
 450         header('Location: ./add-tag/'. $_GET['addtag']);
 451         exit;
 452     }
 453
 454     // -------- User clicks on a tag in result count: Remove the tag from the list of searched tags (searchtags=...)
 455     if (isset($_GET['removetag'])) {
 456         // Get previous URL (http_referer) and remove the tag from the searchtags parameters in query.
 457         if (empty($_SERVER['HTTP_REFERER'])) {
 458             header('Location: ?');
 459             exit;
 460         }
 461
 462         // In case browser does not send HTTP_REFERER
 463         parse_str(parse_url($_SERVER['HTTP_REFERER'], PHP_URL_QUERY), $params);
 464
 465         // Prevent redirection loop
 466         if (isset($params['removetag'])) {
 467             unset($params['removetag']);
 468         }
 469
 470         if (isset($params['searchtags'])) {
 471             $tags = explode(' ', $params['searchtags']);
 472             // Remove value from array $tags.
 473             $tags = array_diff($tags, array($_GET['removetag']));
 474             $params['searchtags'] = implode(' ', $tags);
 475
 476             if (empty($params['searchtags'])) {
 477                 unset($params['searchtags']);
 478             }
 479
 480             // We also remove page (keeping the same page has no sense, since
 481             // the results are different)
 482             unset($params['page']);
 483         }
 484         header('Location: ?'.http_build_query($params));
 485         exit;
 486     }
 487
 488     // -------- User wants to change the number of bookmarks per page (linksperpage=...)
 489     if (isset($_GET['linksperpage'])) {
 490         if (is_numeric($_GET['linksperpage'])) {
 491             $_SESSION['LINKS_PER_PAGE']=abs(intval($_GET['linksperpage']));
 492         }
 493
 494         if (! empty($_SERVER['HTTP_REFERER'])) {
 495             $location = generateLocation($_SERVER['HTTP_REFERER'], $_SERVER['HTTP_HOST'], array('linksperpage'));
 496         } else {
 497             $location = '?';
 498         }
 499         header('Location: '. $location);
 500         exit;
 501     }
 502
 503     // -------- User wants to see only private bookmarks (toggle)
 504     if (isset($_GET['visibility'])) {
 505         if ($_GET['visibility'] === 'private') {
 506             // Visibility not set or not already private, set private, otherwise reset it
 507             if (empty($_SESSION['visibility']) || $_SESSION['visibility'] !== 'private') {
 508                 // See only private bookmarks
 509                 $_SESSION['visibility'] = 'private';
 510             } else {
 511                 unset($_SESSION['visibility']);
 512             }
 513         } elseif ($_GET['visibility'] === 'public') {
 514             if (empty($_SESSION['visibility']) || $_SESSION['visibility'] !== 'public') {
 515                 // See only public bookmarks
 516                 $_SESSION['visibility'] = 'public';
 517             } else {
 518                 unset($_SESSION['visibility']);
 519             }
 520         }
 521
 522         if (! empty($_SERVER['HTTP_REFERER'])) {
 523             $location = generateLocation($_SERVER['HTTP_REFERER'], $_SERVER['HTTP_HOST'], array('visibility'));
 524         } else {
 525             $location = '?';
 526         }
 527         header('Location: '. $location);
 528         exit;
 529     }
 530
 531     // -------- User wants to see only untagged bookmarks (toggle)
 532     if (isset($_GET['untaggedonly'])) {
 533         $_SESSION['untaggedonly'] = empty($_SESSION['untaggedonly']);
 534
 535         if (! empty($_SERVER['HTTP_REFERER'])) {
 536             $location = generateLocation($_SERVER['HTTP_REFERER'], $_SERVER['HTTP_HOST'], array('untaggedonly'));
 537         } else {
 538             $location = '?';
 539         }
 540         header('Location: '. $location);
 541         exit;
 542     }
 543
 544     // -------- Handle other actions allowed for non-logged in users:
 545     if (!$loginManager->isLoggedIn()) {
 546         // User tries to post new link but is not logged in:
 547         // Show login screen, then redirect to ?post=...
 548         if (isset($_GET['post'])) {
 549             header( // Redirect to login page, then back to post link.
 550                 'Location: ./login?post='.urlencode($_GET['post']).
 551                 (!empty($_GET['title'])?'&title='.urlencode($_GET['title']):'').
 552                 (!empty($_GET['description'])?'&description='.urlencode($_GET['description']):'').
 553                 (!empty($_GET['tags'])?'&tags='.urlencode($_GET['tags']):'').
 554                 (!empty($_GET['source'])?'&source='.urlencode($_GET['source']):'')
 555             );
 556             exit;
 557         }
 558
 559         showLinkList($PAGE, $bookmarkService, $conf, $pluginManager, $loginManager);
 560         if (isset($_GET['edit_link'])) {
 561             header('Location: ./login?edit_link='. escape($_GET['edit_link']));
 562             exit;
 563         }
 564
 565         exit; // Never remove this one! All operations below are reserved for logged in user.
 566     }
 567
 568     // -------- All other functions are reserved for the registered user:
 569
 570     // -------- Display the Tools menu if requested (import/export/bookmarklet...)
 571     if ($targetPage == Router::$PAGE_TOOLS) {
 572         $data = [
 573             'pageabsaddr' => index_url($_SERVER),
 574             'sslenabled' => is_https($_SERVER),
 575         ];
 576         $pluginManager->executeHooks('render_tools', $data);
 577
 578         foreach ($data as $key => $value) {
 579             $PAGE->assign($key, $value);
 580         }
 581
 582         $PAGE->assign('pagetitle', t('Tools') .' - '. $conf->get('general.title', 'Shaarli'));
 583         $PAGE->renderPage('tools');
 584         exit;
 585     }
 586
 587     // -------- User wants to change his/her password.
 588     if ($targetPage == Router::$PAGE_CHANGEPASSWORD) {
 589         if ($conf->get('security.open_shaarli')) {
 590             die(t('You are not supposed to change a password on an Open Shaarli.'));
 591         }
 592
 593         if (!empty($_POST['setpassword']) && !empty($_POST['oldpassword'])) {
 594             if (!$sessionManager->checkToken($_POST['token'])) {
 595                 die(t('Wrong token.')); // Go away!
 596             }
 597
 598             // Make sure old password is correct.
 599             $oldhash = sha1(
 600                 $_POST['oldpassword'].$conf->get('credentials.login').$conf->get('credentials.salt')
 601             );
 602             if ($oldhash != $conf->get('credentials.hash')) {
 603                 echo '<script>alert("'
 604                     . t('The old password is not correct.')
 605                     .'");document.location=\'./?do=changepasswd\';</script>';
 606                 exit;
 607             }
 608             // Save new password
 609             // Salt renders rainbow-tables attacks useless.
 610             $conf->set('credentials.salt', sha1(uniqid('', true) .'_'. mt_rand()));
 611             $conf->set(
 612                 'credentials.hash',
 613                 sha1(
 614                     $_POST['setpassword']
 615                     . $conf->get('credentials.login')
 616                     . $conf->get('credentials.salt')
 617                 )
 618             );
 619             try {
 620                 $conf->write($loginManager->isLoggedIn());
 621             } catch (Exception $e) {
 622                 error_log(
 623                     'ERROR while writing config file after changing password.' . PHP_EOL .
 624                     $e->getMessage()
 625                 );
 626
 627                 // TODO: do not handle exceptions/errors in JS.
 628                 echo '<script>alert("'. $e->getMessage() .'");document.location=\'./?do=tools\';</script>';
 629                 exit;
 630             }
 631             echo '<script>alert("'. t('Your password has been changed') .'");document.location=\'./?do=tools\';</script>';
 632             exit;
 633         } else {
 634             // show the change password form.
 635             $PAGE->assign('pagetitle', t('Change password') .' - '. $conf->get('general.title', 'Shaarli'));
 636             $PAGE->renderPage('changepassword');
 637             exit;
 638         }
 639     }
 640
 641     // -------- User wants to change configuration
 642     if ($targetPage == Router::$PAGE_CONFIGURE) {
 643         if (!empty($_POST['title'])) {
 644             if (!$sessionManager->checkToken($_POST['token'])) {
 645                 die(t('Wrong token.')); // Go away!
 646             }
 647             $tz = 'UTC';
 648             if (!empty($_POST['continent']) && !empty($_POST['city'])
 649                 && isTimeZoneValid($_POST['continent'], $_POST['city'])
 650             ) {
 651                 $tz = $_POST['continent'] . '/' . $_POST['city'];
 652             }
 653             $conf->set('general.timezone', $tz);
 654             $conf->set('general.title', escape($_POST['title']));
 655             $conf->set('general.header_link', escape($_POST['titleLink']));
 656             $conf->set('general.retrieve_description', !empty($_POST['retrieveDescription']));
 657             $conf->set('resource.theme', escape($_POST['theme']));
 658             $conf->set('security.session_protection_disabled', !empty($_POST['disablesessionprotection']));
 659             $conf->set('privacy.default_private_links', !empty($_POST['privateLinkByDefault']));
 660             $conf->set('feed.rss_permalinks', !empty($_POST['enableRssPermalinks']));
 661             $conf->set('updates.check_updates', !empty($_POST['updateCheck']));
 662             $conf->set('privacy.hide_public_links', !empty($_POST['hidePublicLinks']));
 663             $conf->set('api.enabled', !empty($_POST['enableApi']));
 664             $conf->set('api.secret', escape($_POST['apiSecret']));
 665             $conf->set('formatter', escape($_POST['formatter']));
 666
 667             if (! empty($_POST['language'])) {
 668                 $conf->set('translation.language', escape($_POST['language']));
 669             }
 670
 671             $thumbnailsMode = extension_loaded('gd') ? $_POST['enableThumbnails'] : Thumbnailer::MODE_NONE;
 672             if ($thumbnailsMode !== Thumbnailer::MODE_NONE
 673                 && $thumbnailsMode !== $conf->get('thumbnails.mode', Thumbnailer::MODE_NONE)
 674             ) {
 675                 $_SESSION['warnings'][] = t(
 676                     'You have enabled or changed thumbnails mode. '
 677                     .'<a href="./?do=thumbs_update">Please synchronize them</a>.'
 678                 );
 679             }
 680             $conf->set('thumbnails.mode', $thumbnailsMode);
 681
 682             try {
 683                 $conf->write($loginManager->isLoggedIn());
 684                 $history->updateSettings();
 685                 $pageCacheManager->invalidateCaches();
 686             } catch (Exception $e) {
 687                 error_log(
 688                     'ERROR while writing config file after configuration update.' . PHP_EOL .
 689                     $e->getMessage()
 690                 );
 691
 692                 // TODO: do not handle exceptions/errors in JS.
 693                 echo '<script>alert("'. $e->getMessage() .'");document.location=\'./?do=configure\';</script>';
 694                 exit;
 695             }
 696             echo '<script>alert("'. t('Configuration was saved.') .'");document.location=\'./?do=configure\';</script>';
 697             exit;
 698         } else {
 699             // Show the configuration form.
 700             $PAGE->assign('title', $conf->get('general.title'));
 701             $PAGE->assign('theme', $conf->get('resource.theme'));
 702             $PAGE->assign('theme_available', ThemeUtils::getThemes($conf->get('resource.raintpl_tpl')));
 703             $PAGE->assign('formatter_available', ['default', 'markdown']);
 704             list($continents, $cities) = generateTimeZoneData(
 705                 timezone_identifiers_list(),
 706                 $conf->get('general.timezone')
 707             );
 708             $PAGE->assign('continents', $continents);
 709             $PAGE->assign('cities', $cities);
 710             $PAGE->assign('retrieve_description', $conf->get('general.retrieve_description'));
 711             $PAGE->assign('private_links_default', $conf->get('privacy.default_private_links', false));
 712             $PAGE->assign('session_protection_disabled', $conf->get('security.session_protection_disabled', false));
 713             $PAGE->assign('enable_rss_permalinks', $conf->get('feed.rss_permalinks', false));
 714             $PAGE->assign('enable_update_check', $conf->get('updates.check_updates', true));
 715             $PAGE->assign('hide_public_links', $conf->get('privacy.hide_public_links', false));
 716             $PAGE->assign('api_enabled', $conf->get('api.enabled', true));
 717             $PAGE->assign('api_secret', $conf->get('api.secret'));
 718             $PAGE->assign('languages', Languages::getAvailableLanguages());
 719             $PAGE->assign('gd_enabled', extension_loaded('gd'));
 720             $PAGE->assign('thumbnails_mode', $conf->get('thumbnails.mode', Thumbnailer::MODE_NONE));
 721             $PAGE->assign('pagetitle', t('Configure') .' - '. $conf->get('general.title', 'Shaarli'));
 722             $PAGE->renderPage('configure');
 723             exit;
 724         }
 725     }
 726
 727     // -------- User wants to rename a tag or delete it
 728     if ($targetPage == Router::$PAGE_CHANGETAG) {
 729         if (empty($_POST['fromtag']) || (empty($_POST['totag']) && isset($_POST['renametag']))) {
 730             $PAGE->assign('fromtag', ! empty($_GET['fromtag']) ? escape($_GET['fromtag']) : '');
 731             $PAGE->assign('pagetitle', t('Manage tags') .' - '. $conf->get('general.title', 'Shaarli'));
 732             $PAGE->renderPage('changetag');
 733             exit;
 734         }
 735
 736         if (!$sessionManager->checkToken($_POST['token'])) {
 737             die(t('Wrong token.'));
 738         }
 739
 740         $toTag = isset($_POST['totag']) ? escape($_POST['totag']) : null;
 741         $fromTag = escape($_POST['fromtag']);
 742         $count = 0;
 743         $bookmarks = $bookmarkService->search(['searchtags' => $fromTag], BookmarkFilter::$ALL, true);
 744         foreach ($bookmarks as $bookmark) {
 745             if ($toTag) {
 746                 $bookmark->renameTag($fromTag, $toTag);
 747             } else {
 748                 $bookmark->deleteTag($fromTag);
 749             }
 750             $bookmarkService->set($bookmark, false);
 751             $history->updateLink($bookmark);
 752             $count++;
 753         }
 754         $bookmarkService->save();
 755         $delete = empty($_POST['totag']);
 756         $redirect = $delete ? './do=changetag' : 'searchtags='. urlencode(escape($_POST['totag']));
 757         $alert = $delete
 758             ? sprintf(t('The tag was removed from %d link.', 'The tag was removed from %d bookmarks.', $count), $count)
 759             : sprintf(t('The tag was renamed in %d link.', 'The tag was renamed in %d bookmarks.', $count), $count);
 760         echo '<script>alert("'. $alert .'");document.location=\'?'. $redirect .'\';</script>';
 761         exit;
 762     }
 763
 764     // -------- User wants to add a link without using the bookmarklet: Show form.
 765     if ($targetPage == Router::$PAGE_ADDLINK) {
 766         $PAGE->assign('pagetitle', t('Shaare a new link') .' - '. $conf->get('general.title', 'Shaarli'));
 767         $PAGE->renderPage('addlink');
 768         exit;
 769     }
 770
 771     // -------- User clicked the "Save" button when editing a link: Save link to database.
 772     if (isset($_POST['save_edit'])) {
 773         // Go away!
 774         if (! $sessionManager->checkToken($_POST['token'])) {
 775             die(t('Wrong token.'));
 776         }
 777
 778         // lf_id should only be present if the link exists.
 779         $id = isset($_POST['lf_id']) ? intval(escape($_POST['lf_id'])) : null;
 780         if ($id && $bookmarkService->exists($id)) {
 781             // Edit
 782             $bookmark = $bookmarkService->get($id);
 783         } else {
 784             // New link
 785             $bookmark = new Bookmark();
 786         }
 787
 788         $bookmark->setTitle($_POST['lf_title']);
 789         $bookmark->setDescription($_POST['lf_description']);
 790         $bookmark->setUrl($_POST['lf_url'], $conf->get('security.allowed_protocols'));
 791         $bookmark->setPrivate(isset($_POST['lf_private']));
 792         $bookmark->setTagsString($_POST['lf_tags']);
 793
 794         if ($conf->get('thumbnails.mode', Thumbnailer::MODE_NONE) !== Thumbnailer::MODE_NONE
 795             && ! $bookmark->isNote()
 796         ) {
 797             $thumbnailer = new Thumbnailer($conf);
 798             $bookmark->setThumbnail($thumbnailer->get($bookmark->getUrl()));
 799         }
 800         $bookmarkService->addOrSet($bookmark, false);
 801
 802         // To preserve backward compatibility with 3rd parties, plugins still use arrays
 803         $factory = new FormatterFactory($conf, $loginManager->isLoggedIn());
 804         $formatter = $factory->getFormatter('raw');
 805         $data = $formatter->format($bookmark);
 806         $pluginManager->executeHooks('save_link', $data);
 807
 808         $bookmark->fromArray($data);
 809         $bookmarkService->set($bookmark);
 810
 811         // If we are called from the bookmarklet, we must close the popup:
 812         if (isset($_GET['source']) && ($_GET['source']=='bookmarklet' || $_GET['source']=='firefoxsocialapi')) {
 813             echo '<script>self.close();</script>';
 814             exit;
 815         }
 816
 817         $returnurl = !empty($_POST['returnurl']) ? $_POST['returnurl'] : '?';
 818         $location = generateLocation($returnurl, $_SERVER['HTTP_HOST'], array('addlink', 'post', 'edit_link'));
 819         // Scroll to the link which has been edited.
 820         $location .= '#' . $bookmark->getShortUrl();
 821         // After saving the link, redirect to the page the user was on.
 822         header('Location: '. $location);
 823         exit;
 824     }
 825
 826     // -------- User clicked the "Delete" button when editing a link: Delete link from database.
 827     if ($targetPage == Router::$PAGE_DELETELINK) {
 828         if (! $sessionManager->checkToken($_GET['token'])) {
 829             die(t('Wrong token.'));
 830         }
 831
 832         $ids = trim($_GET['lf_linkdate']);
 833         if (strpos($ids, ' ') !== false) {
 834             // multiple, space-separated ids provided
 835             $ids = array_values(array_filter(
 836                 preg_split('/\s+/', escape($ids)),
 837                 function ($item) {
 838                     return $item !== '';
 839                 }
 840             ));
 841         } else {
 842             // only a single id provided
 843             $shortUrl = $bookmarkService->get($ids)->getShortUrl();
 844             $ids = [$ids];
 845         }
 846         // assert at least one id is given
 847         if (!count($ids)) {
 848             die('no id provided');
 849         }
 850         $factory = new FormatterFactory($conf, $loginManager->isLoggedIn());
 851         $formatter = $factory->getFormatter('raw');
 852         foreach ($ids as $id) {
 853             $id = (int) escape($id);
 854             $bookmark = $bookmarkService->get($id);
 855             $data = $formatter->format($bookmark);
 856             $pluginManager->executeHooks('delete_link', $data);
 857             $bookmarkService->remove($bookmark, false);
 858         }
 859         $bookmarkService->save();
 860
 861         // If we are called from the bookmarklet, we must close the popup:
 862         if (isset($_GET['source']) && ($_GET['source']=='bookmarklet' || $_GET['source']=='firefoxsocialapi')) {
 863             echo '<script>self.close();</script>';
 864             exit;
 865         }
 866
 867         $location = '?';
 868         if (isset($_SERVER['HTTP_REFERER'])) {
 869             // Don't redirect to where we were previously if it was a permalink or an edit_link, because it would 404.
 870             $location = generateLocation(
 871                 $_SERVER['HTTP_REFERER'],
 872                 $_SERVER['HTTP_HOST'],
 873                 ['delete_link', 'edit_link', ! empty($shortUrl) ? $shortUrl : null]
 874             );
 875         }
 876
 877         header('Location: ' . $location); // After deleting the link, redirect to appropriate location
 878         exit;
 879     }
 880
 881     // -------- User clicked either "Set public" or "Set private" bulk operation
 882     if ($targetPage == Router::$PAGE_CHANGE_VISIBILITY) {
 883         if (! $sessionManager->checkToken($_GET['token'])) {
 884             die(t('Wrong token.'));
 885         }
 886
 887         $ids = trim($_GET['ids']);
 888         if (strpos($ids, ' ') !== false) {
 889             // multiple, space-separated ids provided
 890             $ids = array_values(array_filter(preg_split('/\s+/', escape($ids))));
 891         } else {
 892             // only a single id provided
 893             $ids = [$ids];
 894         }
 895
 896         // assert at least one id is given
 897         if (!count($ids)) {
 898             die('no id provided');
 899         }
 900         // assert that the visibility is valid
 901         if (!isset($_GET['newVisibility']) || !in_array($_GET['newVisibility'], ['public', 'private'])) {
 902             die('invalid visibility');
 903         } else {
 904             $private = $_GET['newVisibility'] === 'private';
 905         }
 906         $factory = new FormatterFactory($conf, $loginManager->isLoggedIn());
 907         $formatter = $factory->getFormatter('raw');
 908         foreach ($ids as $id) {
 909             $id = (int) escape($id);
 910             $bookmark = $bookmarkService->get($id);
 911             $bookmark->setPrivate($private);
 912
 913             // To preserve backward compatibility with 3rd parties, plugins still use arrays
 914             $data = $formatter->format($bookmark);
 915             $pluginManager->executeHooks('save_link', $data);
 916             $bookmark->fromArray($data);
 917
 918             $bookmarkService->set($bookmark);
 919         }
 920         $bookmarkService->save();
 921
 922         $location = '?';
 923         if (isset($_SERVER['HTTP_REFERER'])) {
 924             $location = generateLocation(
 925                 $_SERVER['HTTP_REFERER'],
 926                 $_SERVER['HTTP_HOST']
 927             );
 928         }
 929         header('Location: ' . $location); // After deleting the link, redirect to appropriate location
 930         exit;
 931     }
 932
 933     // -------- User clicked the "EDIT" button on a link: Display link edit form.
 934     if (isset($_GET['edit_link'])) {
 935         $id = (int) escape($_GET['edit_link']);
 936         try {
 937             $link = $bookmarkService->get($id);  // Read database
 938         } catch (BookmarkNotFoundException $e) {
 939             // Link not found in database.
 940             header('Location: ?');
 941             exit;
 942         }
 943
 944         $factory = new FormatterFactory($conf, $loginManager->isLoggedIn());
 945         $formatter = $factory->getFormatter('raw');
 946         $formattedLink = $formatter->format($link);
 947         $tags = $bookmarkService->bookmarksCountPerTag();
 948         if ($conf->get('formatter') === 'markdown') {
 949             $tags[BookmarkMarkdownFormatter::NO_MD_TAG] = 1;
 950         }
 951         $data = array(
 952             'link' => $formattedLink,
 953             'link_is_new' => false,
 954             'http_referer' => (isset($_SERVER['HTTP_REFERER']) ? escape($_SERVER['HTTP_REFERER']) : ''),
 955             'tags' => $tags,
 956         );
 957         $pluginManager->executeHooks('render_editlink', $data);
 958
 959         foreach ($data as $key => $value) {
 960             $PAGE->assign($key, $value);
 961         }
 962
 963         $PAGE->assign('pagetitle', t('Edit') .' '. t('Shaare') .' - '. $conf->get('general.title', 'Shaarli'));
 964         $PAGE->renderPage('editlink');
 965         exit;
 966     }
 967
 968     // -------- User want to post a new link: Display link edit form.
 969     if (isset($_GET['post'])) {
 970         $url = cleanup_url($_GET['post']);
 971
 972         $link_is_new = false;
 973         // Check if URL is not already in database (in this case, we will edit the existing link)
 974         $bookmark = $bookmarkService->findByUrl($url);
 975         if (! $bookmark) {
 976             $link_is_new = true;
 977             // Get title if it was provided in URL (by the bookmarklet).
 978             $title = empty($_GET['title']) ? '' : escape($_GET['title']);
 979             // Get description if it was provided in URL (by the bookmarklet). [Bronco added that]
 980             $description = empty($_GET['description']) ? '' : escape($_GET['description']);
 981             $tags = empty($_GET['tags']) ? '' : escape($_GET['tags']);
 982             $private = !empty($_GET['private']) && $_GET['private'] === "1" ? 1 : 0;
 983
 984             // If this is an HTTP(S) link, we try go get the page to extract
 985             // the title (otherwise we will to straight to the edit form.)
 986             if (empty($title) && strpos(get_url_scheme($url), 'http') !== false) {
 987                 $retrieveDescription = $conf->get('general.retrieve_description');
 988                 // Short timeout to keep the application responsive
 989                 // The callback will fill $charset and $title with data from the downloaded page.
 990                 get_http_response(
 991                     $url,
 992                     $conf->get('general.download_timeout', 30),
 993                     $conf->get('general.download_max_size', 4194304),
 994                     get_curl_download_callback($charset, $title, $description, $tags, $retrieveDescription)
 995                 );
 996                 if (! empty($title) && strtolower($charset) != 'utf-8') {
 997                     $title = mb_convert_encoding($title, 'utf-8', $charset);
 998                 }
 999             }
1000
1001             if ($url == '') {
1002                 $title = $conf->get('general.default_note_title', t('Note: '));
1003             }
1004             $url = escape($url);
1005             $title = escape($title);
1006
1007             $link = [
1008                 'title' => $title,
1009                 'url' => $url,
1010                 'description' => $description,
1011                 'tags' => $tags,
1012                 'private' => $private,
1013             ];
1014         } else {
1015             $factory = new FormatterFactory($conf, $loginManager->isLoggedIn());
1016             $formatter = $factory->getFormatter('raw');
1017             $link = $formatter->format($bookmark);
1018         }
1019
1020         $tags = $bookmarkService->bookmarksCountPerTag();
1021         if ($conf->get('formatter') === 'markdown') {
1022             $tags[BookmarkMarkdownFormatter::NO_MD_TAG] = 1;
1023         }
1024         $data = [
1025             'link' => $link,
1026             'link_is_new' => $link_is_new,
1027             'http_referer' => (isset($_SERVER['HTTP_REFERER']) ? escape($_SERVER['HTTP_REFERER']) : ''),
1028             'source' => (isset($_GET['source']) ? $_GET['source'] : ''),
1029             'tags' => $tags,
1030             'default_private_links' => $conf->get('privacy.default_private_links', false),
1031         ];
1032         $pluginManager->executeHooks('render_editlink', $data);
1033
1034         foreach ($data as $key => $value) {
1035             $PAGE->assign($key, $value);
1036         }
1037
1038         $PAGE->assign('pagetitle', t('Shaare') .' - '. $conf->get('general.title', 'Shaarli'));
1039         $PAGE->renderPage('editlink');
1040         exit;
1041     }
1042
1043     if ($targetPage == Router::$PAGE_PINLINK) {
1044         if (! isset($_GET['id']) || !$bookmarkService->exists($_GET['id'])) {
1045             // FIXME! Use a proper error system.
1046             $msg = t('Invalid link ID provided');
1047             echo '<script>alert("'. $msg .'");document.location=\''. index_url($_SERVER) .'\';</script>';
1048             exit;
1049         }
1050         if (! $sessionManager->checkToken($_GET['token'])) {
1051             die('Wrong token.');
1052         }
1053
1054         $link = $bookmarkService->get($_GET['id']);
1055         $link->setSticky(! $link->isSticky());
1056         $bookmarkService->set($link);
1057         header('Location: '.index_url($_SERVER));
1058         exit;
1059     }
1060
1061     if ($targetPage == Router::$PAGE_EXPORT) {
1062         // Export bookmarks as a Netscape Bookmarks file
1063
1064         if (empty($_GET['selection'])) {
1065             $PAGE->assign('pagetitle', t('Export') .' - '. $conf->get('general.title', 'Shaarli'));
1066             $PAGE->renderPage('export');
1067             exit;
1068         }
1069
1070         // export as bookmarks_(all|private|public)_YYYYmmdd_HHMMSS.html
1071         $selection = $_GET['selection'];
1072         if (isset($_GET['prepend_note_url'])) {
1073             $prependNoteUrl = $_GET['prepend_note_url'];
1074         } else {
1075             $prependNoteUrl = false;
1076         }
1077
1078         try {
1079             $factory = new FormatterFactory($conf, $loginManager->isLoggedIn());
1080             $formatter = $factory->getFormatter('raw');
1081             $PAGE->assign(
1082                 'links',
1083                 NetscapeBookmarkUtils::filterAndFormat(
1084                     $bookmarkService,
1085                     $formatter,
1086                     $selection,
1087                     $prependNoteUrl,
1088                     index_url($_SERVER)
1089                 )
1090             );
1091         } catch (Exception $exc) {
1092             header('Content-Type: text/plain; charset=utf-8');
1093             echo $exc->getMessage();
1094             exit;
1095         }
1096         $now = new DateTime();
1097         header('Content-Type: text/html; charset=utf-8');
1098         header(
1099             'Content-disposition: attachment; filename=bookmarks_'
1100             .$selection.'_'.$now->format(Bookmark::LINK_DATE_FORMAT).'.html'
1101         );
1102         $PAGE->assign('date', $now->format(DateTime::RFC822));
1103         $PAGE->assign('eol', PHP_EOL);
1104         $PAGE->assign('selection', $selection);
1105         $PAGE->renderPage('export.bookmarks');
1106         exit;
1107     }
1108
1109     if ($targetPage == Router::$PAGE_IMPORT) {
1110         // Upload a Netscape bookmark dump to import its contents
1111
1112         if (! isset($_POST['token']) || ! isset($_FILES['filetoupload'])) {
1113             // Show import dialog
1114             $PAGE->assign(
1115                 'maxfilesize',
1116                 get_max_upload_size(
1117                     ini_get('post_max_size'),
1118                     ini_get('upload_max_filesize'),
1119                     false
1120                 )
1121             );
1122             $PAGE->assign(
1123                 'maxfilesizeHuman',
1124                 get_max_upload_size(
1125                     ini_get('post_max_size'),
1126                     ini_get('upload_max_filesize'),
1127                     true
1128                 )
1129             );
1130             $PAGE->assign('pagetitle', t('Import') .' - '. $conf->get('general.title', 'Shaarli'));
1131             $PAGE->renderPage('import');
1132             exit;
1133         }
1134
1135         // Import bookmarks from an uploaded file
1136         if (isset($_FILES['filetoupload']['size']) && $_FILES['filetoupload']['size'] == 0) {
1137             // The file is too big or some form field may be missing.
1138             $msg = sprintf(
1139                 t(
1140                     'The file you are trying to upload is probably bigger than what this webserver can accept'
1141                     .' (%s). Please upload in smaller chunks.'
1142                 ),
1143                 get_max_upload_size(ini_get('post_max_size'), ini_get('upload_max_filesize'))
1144             );
1145             echo '<script>alert("'. $msg .'");document.location=\'./?do='.Router::$PAGE_IMPORT .'\';</script>';
1146             exit;
1147         }
1148         if (! $sessionManager->checkToken($_POST['token'])) {
1149             die('Wrong token.');
1150         }
1151         $status = NetscapeBookmarkUtils::import(
1152             $_POST,
1153             $_FILES,
1154             $bookmarkService,
1155             $conf,
1156             $history
1157         );
1158         echo '<script>alert("'.$status.'");document.location=\'./?do='
1159              .Router::$PAGE_IMPORT .'\';</script>';
1160         exit;
1161     }
1162
1163     // Plugin administration page
1164     if ($targetPage == Router::$PAGE_PLUGINSADMIN) {
1165         $pluginMeta = $pluginManager->getPluginsMeta();
1166
1167         // Split plugins into 2 arrays: ordered enabled plugins and disabled.
1168         $enabledPlugins = array_filter($pluginMeta, function ($v) {
1169             return $v['order'] !== false;
1170         });
1171         // Load parameters.
1172         $enabledPlugins = load_plugin_parameter_values($enabledPlugins, $conf->get('plugins', array()));
1173         uasort(
1174             $enabledPlugins,
1175             function ($a, $b) {
1176                 return $a['order'] - $b['order'];
1177             }
1178         );
1179         $disabledPlugins = array_filter($pluginMeta, function ($v) {
1180             return $v['order'] === false;
1181         });
1182
1183         $PAGE->assign('enabledPlugins', $enabledPlugins);
1184         $PAGE->assign('disabledPlugins', $disabledPlugins);
1185         $PAGE->assign('pagetitle', t('Plugin administration') .' - '. $conf->get('general.title', 'Shaarli'));
1186         $PAGE->renderPage('pluginsadmin');
1187         exit;
1188     }
1189
1190     // Plugin administration form action
1191     if ($targetPage == Router::$PAGE_SAVE_PLUGINSADMIN) {
1192         try {
1193             if (isset($_POST['parameters_form'])) {
1194                 $pluginManager->executeHooks('save_plugin_parameters', $_POST);
1195                 unset($_POST['parameters_form']);
1196                 foreach ($_POST as $param => $value) {
1197                     $conf->set('plugins.'. $param, escape($value));
1198                 }
1199             } else {
1200                 $conf->set('general.enabled_plugins', save_plugin_config($_POST));
1201             }
1202             $conf->write($loginManager->isLoggedIn());
1203             $history->updateSettings();
1204         } catch (Exception $e) {
1205             error_log(
1206                 'ERROR while saving plugin configuration:.' . PHP_EOL .
1207                 $e->getMessage()
1208             );
1209
1210             // TODO: do not handle exceptions/errors in JS.
1211             echo '<script>alert("'
1212                 . $e->getMessage()
1213                 .'");document.location=\'./?do='
1214                 . Router::$PAGE_PLUGINSADMIN
1215                 .'\';</script>';
1216             exit;
1217         }
1218         header('Location: ./?do='. Router::$PAGE_PLUGINSADMIN);
1219         exit;
1220     }
1221
1222     // Get a fresh token
1223     if ($targetPage == Router::$GET_TOKEN) {
1224         header('Content-Type:text/plain');
1225         echo $sessionManager->generateToken();
1226         exit;
1227     }
1228
1229     // -------- Thumbnails Update
1230     if ($targetPage == Router::$PAGE_THUMBS_UPDATE) {
1231         $ids = [];
1232         foreach ($bookmarkService->search() as $bookmark) {
1233             // A note or not HTTP(S)
1234             if ($bookmark->isNote() || ! startsWith(strtolower($bookmark->getUrl()), 'http')) {
1235                 continue;
1236             }
1237             $ids[] = $bookmark->getId();
1238         }
1239         $PAGE->assign('ids', $ids);
1240         $PAGE->assign('pagetitle', t('Thumbnails update') .' - '. $conf->get('general.title', 'Shaarli'));
1241         $PAGE->renderPage('thumbnails');
1242         exit;
1243     }
1244
1245     // -------- Single Thumbnail Update
1246     if ($targetPage == Router::$AJAX_THUMB_UPDATE) {
1247         if (! isset($_POST['id']) || ! ctype_digit($_POST['id'])) {
1248             http_response_code(400);
1249             exit;
1250         }
1251         $id = (int) $_POST['id'];
1252         if (! $bookmarkService->exists($id)) {
1253             http_response_code(404);
1254             exit;
1255         }
1256         $thumbnailer = new Thumbnailer($conf);
1257         $bookmark = $bookmarkService->get($id);
1258         $bookmark->setThumbnail($thumbnailer->get($bookmark->getUrl()));
1259         $bookmarkService->set($bookmark);
1260
1261         $factory = new FormatterFactory($conf, $loginManager->isLoggedIn());
1262         echo json_encode($factory->getFormatter('raw')->format($bookmark));
1263         exit;
1264     }
1265
1266     // -------- Otherwise, simply display search form and bookmarks:
1267     showLinkList($PAGE, $bookmarkService, $conf, $pluginManager, $loginManager);
1268     exit;
1269 }
1270
1271 /**
1272  * Template for the list of bookmarks (<div id="linklist">)
1273  * This function fills all the necessary fields in the $PAGE for the template 'linklist.html'
1274  *
1275  * @param pageBuilder              $PAGE          pageBuilder instance.
1276  * @param BookmarkServiceInterface $linkDb        LinkDB instance.
1277  * @param ConfigManager            $conf          Configuration Manager instance.
1278  * @param PluginManager            $pluginManager Plugin Manager instance.
1279  * @param LoginManager             $loginManager  LoginManager instance
1280  */
1281 function buildLinkList($PAGE, $linkDb, $conf, $pluginManager, $loginManager)
1282 {
1283     $factory = new FormatterFactory($conf, $loginManager->isLoggedIn());
1284     $formatter = $factory->getFormatter();
1285
1286     // Used in templates
1287     if (isset($_GET['searchtags'])) {
1288         if (! empty($_GET['searchtags'])) {
1289             $searchtags = escape(normalize_spaces($_GET['searchtags']));
1290         } else {
1291             $searchtags = false;
1292         }
1293     } else {
1294         $searchtags = '';
1295     }
1296     $searchterm = !empty($_GET['searchterm']) ? escape(normalize_spaces($_GET['searchterm'])) : '';
1297
1298     // Smallhash filter
1299     if (! empty($_SERVER['QUERY_STRING'])
1300         && preg_match('/^[a-zA-Z0-9-_@]{6}($|&|#)/', $_SERVER['QUERY_STRING'])) {
1301         try {
1302             $linksToDisplay = $linkDb->findByHash($_SERVER['QUERY_STRING']);
1303         } catch (BookmarkNotFoundException $e) {
1304             $PAGE->render404($e->getMessage());
1305             exit;
1306         }
1307     } else {
1308         // Filter bookmarks according search parameters.
1309         $visibility = ! empty($_SESSION['visibility']) ? $_SESSION['visibility'] : null;
1310         $request = [
1311             'searchtags' => $searchtags,
1312             'searchterm' => $searchterm,
1313         ];
1314         $linksToDisplay = $linkDb->search($request, $visibility, false, !empty($_SESSION['untaggedonly']));
1315     }
1316
1317     // ---- Handle paging.
1318     $keys = array();
1319     foreach ($linksToDisplay as $key => $value) {
1320         $keys[] = $key;
1321     }
1322
1323     // Select articles according to paging.
1324     $pagecount = ceil(count($keys) / $_SESSION['LINKS_PER_PAGE']);
1325     $pagecount = $pagecount == 0 ? 1 : $pagecount;
1326     $page= empty($_GET['page']) ? 1 : intval($_GET['page']);
1327     $page = $page < 1 ? 1 : $page;
1328     $page = $page > $pagecount ? $pagecount : $page;
1329     // Start index.
1330     $i = ($page-1) * $_SESSION['LINKS_PER_PAGE'];
1331     $end = $i + $_SESSION['LINKS_PER_PAGE'];
1332
1333     $thumbnailsEnabled = $conf->get('thumbnails.mode', Thumbnailer::MODE_NONE) !== Thumbnailer::MODE_NONE;
1334     if ($thumbnailsEnabled) {
1335         $thumbnailer = new Thumbnailer($conf);
1336     }
1337
1338     $linkDisp = array();
1339     while ($i<$end && $i<count($keys)) {
1340         $link = $formatter->format($linksToDisplay[$keys[$i]]);
1341
1342         // Logged in, thumbnails enabled, not a note,
1343         // and (never retrieved yet or no valid cache file)
1344         if ($loginManager->isLoggedIn()
1345             && $thumbnailsEnabled
1346             && !$linksToDisplay[$keys[$i]]->isNote()
1347             && $linksToDisplay[$keys[$i]]->getThumbnail() !== false
1348             && ! is_file($linksToDisplay[$keys[$i]]->getThumbnail())
1349         ) {
1350             $linksToDisplay[$keys[$i]]->setThumbnail($thumbnailer->get($link['url']));
1351             $linkDb->set($linksToDisplay[$keys[$i]], false);
1352             $updateDB = true;
1353             $link['thumbnail'] = $linksToDisplay[$keys[$i]]->getThumbnail();
1354         }
1355
1356         // Check for both signs of a note: starting with ? and 7 chars long.
1357 //        if ($link['url'][0] === '?' && strlen($link['url']) === 7) {
1358 //            $link['url'] = index_url($_SERVER) . $link['url'];
1359 //        }
1360
1361         $linkDisp[$keys[$i]] = $link;
1362         $i++;
1363     }
1364
1365     // If we retrieved new thumbnails, we update the database.
1366     if (!empty($updateDB)) {
1367         $linkDb->save();
1368     }
1369
1370     // Compute paging navigation
1371     $searchtagsUrl = $searchtags === '' ? '' : '&searchtags=' . urlencode($searchtags);
1372     $searchtermUrl = empty($searchterm) ? '' : '&searchterm=' . urlencode($searchterm);
1373     $previous_page_url = '';
1374     if ($i != count($keys)) {
1375         $previous_page_url = '?page=' . ($page+1) . $searchtermUrl . $searchtagsUrl;
1376     }
1377     $next_page_url='';
1378     if ($page>1) {
1379         $next_page_url = '?page=' . ($page-1) . $searchtermUrl . $searchtagsUrl;
1380     }
1381
1382     // Fill all template fields.
1383     $data = array(
1384         'previous_page_url' => $previous_page_url,
1385         'next_page_url' => $next_page_url,
1386         'page_current' => $page,
1387         'page_max' => $pagecount,
1388         'result_count' => count($linksToDisplay),
1389         'search_term' => $searchterm,
1390         'search_tags' => $searchtags,
1391         'visibility' => ! empty($_SESSION['visibility']) ? $_SESSION['visibility'] : '',
1392         'links' => $linkDisp,
1393     );
1394
1395     // If there is only a single link, we change on-the-fly the title of the page.
1396     if (count($linksToDisplay) == 1) {
1397         $data['pagetitle'] = $linksToDisplay[$keys[0]]->getTitle() .' - '. $conf->get('general.title');
1398     } elseif (! empty($searchterm) || ! empty($searchtags)) {
1399         $data['pagetitle'] = t('Search: ');
1400         $data['pagetitle'] .= ! empty($searchterm) ? $searchterm .' ' : '';
1401         $bracketWrap = function ($tag) {
1402             return '['. $tag .']';
1403         };
1404         $data['pagetitle'] .= ! empty($searchtags)
1405             ? implode(' ', array_map($bracketWrap, preg_split('/\s+/', $searchtags))).' '
1406             : '';
1407         $data['pagetitle'] .= '- '. $conf->get('general.title');
1408     }
1409
1410     $pluginManager->executeHooks('render_linklist', $data, array('loggedin' => $loginManager->isLoggedIn()));
1411
1412     foreach ($data as $key => $value) {
1413         $PAGE->assign($key, $value);
1414     }
1415
1416     return;
1417 }
1418
1419 /**
1420  * Installation
1421  * This function should NEVER be called if the file data/config.php exists.
1422  *
1423  * @param ConfigManager  $conf           Configuration Manager instance.
1424  * @param SessionManager $sessionManager SessionManager instance
1425  * @param LoginManager   $loginManager   LoginManager instance
1426  */
1427 function install($conf, $sessionManager, $loginManager)
1428 {
1429     // On free.fr host, make sure the /sessions directory exists, otherwise login will not work.
1430     if (endsWith($_SERVER['HTTP_HOST'], '.free.fr') && !is_dir($_SERVER['DOCUMENT_ROOT'].'/sessions')) {
1431         mkdir($_SERVER['DOCUMENT_ROOT'].'/sessions', 0705);
1432     }
1433
1434
1435     // This part makes sure sessions works correctly.
1436     // (Because on some hosts, session.save_path may not be set correctly,
1437     // or we may not have write access to it.)
1438     if (isset($_GET['test_session'])
1439         && ( !isset($_SESSION) || !isset($_SESSION['session_tested']) || $_SESSION['session_tested']!='Working')) {
1440         // Step 2: Check if data in session is correct.
1441         $msg = t(
1442             '<pre>Sessions do not seem to work correctly on your server.<br>'.
1443             'Make sure the variable "session.save_path" is set correctly in your PHP config, '.
1444             'and that you have write access to it.<br>'.
1445             'It currently points to %s.<br>'.
1446             'On some browsers, accessing your server via a hostname like \'localhost\' '.
1447             'or any custom hostname without a dot causes cookie storage to fail. '.
1448             'We recommend accessing your server via it\'s IP address or Fully Qualified Domain Name.<br>'
1449         );
1450         $msg = sprintf($msg, session_save_path());
1451         echo $msg;
1452         echo '<br><a href="?">'. t('Click to try again.') .'</a></pre>';
1453         die;
1454     }
1455     if (!isset($_SESSION['session_tested'])) {
1456         // Step 1 : Try to store data in session and reload page.
1457         $_SESSION['session_tested'] = 'Working';  // Try to set a variable in session.
1458         header('Location: '.index_url($_SERVER).'?test_session');  // Redirect to check stored data.
1459     }
1460     if (isset($_GET['test_session'])) {
1461         // Step 3: Sessions are OK. Remove test parameter from URL.
1462         header('Location: '.index_url($_SERVER));
1463     }
1464
1465
1466     if (!empty($_POST['setlogin']) && !empty($_POST['setpassword'])) {
1467         $tz = 'UTC';
1468         if (!empty($_POST['continent']) && !empty($_POST['city'])
1469             && isTimeZoneValid($_POST['continent'], $_POST['city'])
1470         ) {
1471             $tz = $_POST['continent'].'/'.$_POST['city'];
1472         }
1473         $conf->set('general.timezone', $tz);
1474         $login = $_POST['setlogin'];
1475         $conf->set('credentials.login', $login);
1476         $salt = sha1(uniqid('', true) .'_'. mt_rand());
1477         $conf->set('credentials.salt', $salt);
1478         $conf->set('credentials.hash', sha1($_POST['setpassword'] . $login . $salt));
1479         if (!empty($_POST['title'])) {
1480             $conf->set('general.title', escape($_POST['title']));
1481         } else {
1482             $conf->set('general.title', 'Shared bookmarks on '.escape(index_url($_SERVER)));
1483         }
1484         $conf->set('translation.language', escape($_POST['language']));
1485         $conf->set('updates.check_updates', !empty($_POST['updateCheck']));
1486         $conf->set('api.enabled', !empty($_POST['enableApi']));
1487         $conf->set(
1488             'api.secret',
1489             generate_api_secret(
1490                 $conf->get('credentials.login'),
1491                 $conf->get('credentials.salt')
1492             )
1493         );
1494         try {
1495             // Everything is ok, let's create config file.
1496             $conf->write($loginManager->isLoggedIn());
1497         } catch (Exception $e) {
1498             error_log(
1499                 'ERROR while writing config file after installation.' . PHP_EOL .
1500                     $e->getMessage()
1501             );
1502
1503             // TODO: do not handle exceptions/errors in JS.
1504             echo '<script>alert("'. $e->getMessage() .'");document.location=\'?\';</script>';
1505             exit;
1506         }
1507
1508         $history = new History($conf->get('resource.history'));
1509         $bookmarkService = new BookmarkFileService($conf, $history, true);
1510         if ($bookmarkService->count() === 0) {
1511             $bookmarkService->initialize();
1512         }
1513
1514         echo '<script>alert('
1515             .'"Shaarli is now configured. '
1516             .'Please enter your login/password and start shaaring your bookmarks!"'
1517             .');document.location=\'./login\';</script>';
1518         exit;
1519     }
1520
1521     $PAGE = new PageBuilder($conf, $_SESSION, null, $sessionManager->generateToken());
1522     list($continents, $cities) = generateTimeZoneData(timezone_identifiers_list(), date_default_timezone_get());
1523     $PAGE->assign('continents', $continents);
1524     $PAGE->assign('cities', $cities);
1525     $PAGE->assign('languages', Languages::getAvailableLanguages());
1526     $PAGE->renderPage('install');
1527     exit;
1528 }
1529
1530 if (!isset($_SESSION['LINKS_PER_PAGE'])) {
1531     $_SESSION['LINKS_PER_PAGE'] = $conf->get('general.links_per_page', 20);
1532 }
1533
1534 try {
1535     $history = new History($conf->get('resource.history'));
1536 } catch (Exception $e) {
1537     die($e->getMessage());
1538 }
1539
1540 $linkDb = new BookmarkFileService($conf, $history, $loginManager->isLoggedIn());
1541
1542 if (isset($_SERVER['QUERY_STRING']) && startsWith($_SERVER['QUERY_STRING'], 'do=dailyrss')) {
1543     header('Location: ./daily-rss');
1544     exit;
1545 }
1546
1547 $containerBuilder = new ContainerBuilder($conf, $sessionManager, $loginManager, WEB_PATH);
1548 $container = $containerBuilder->build();
1549 $app = new App($container);
1550
1551 // REST API routes
1552 $app->group('/api/v1', function () {
1553     $this->get('/info', '\Shaarli\Api\Controllers\Info:getInfo')->setName('getInfo');
1554     $this->get('/links', '\Shaarli\Api\Controllers\Links:getLinks')->setName('getLinks');
1555     $this->get('/links/{id:[\d]+}', '\Shaarli\Api\Controllers\Links:getLink')->setName('getLink');
1556     $this->post('/links', '\Shaarli\Api\Controllers\Links:postLink')->setName('postLink');
1557     $this->put('/links/{id:[\d]+}', '\Shaarli\Api\Controllers\Links:putLink')->setName('putLink');
1558     $this->delete('/links/{id:[\d]+}', '\Shaarli\Api\Controllers\Links:deleteLink')->setName('deleteLink');
1559
1560     $this->get('/tags', '\Shaarli\Api\Controllers\Tags:getTags')->setName('getTags');
1561     $this->get('/tags/{tagName:[\w]+}', '\Shaarli\Api\Controllers\Tags:getTag')->setName('getTag');
1562     $this->put('/tags/{tagName:[\w]+}', '\Shaarli\Api\Controllers\Tags:putTag')->setName('putTag');
1563     $this->delete('/tags/{tagName:[\w]+}', '\Shaarli\Api\Controllers\Tags:deleteTag')->setName('deleteTag');
1564
1565     $this->get('/history', '\Shaarli\Api\Controllers\HistoryController:getHistory')->setName('getHistory');
1566 })->add('\Shaarli\Api\ApiMiddleware');
1567
1568 $app->group('', function () {
1569     $this->get('/login', '\Shaarli\Front\Controller\LoginController:index')->setName('login');
1570     $this->get('/logout', '\Shaarli\Front\Controller\LogoutController:index')->setName('logout');
1571     $this->get('/picture-wall', '\Shaarli\Front\Controller\PictureWallController:index')->setName('picwall');
1572     $this->get('/tag-cloud', '\Shaarli\Front\Controller\TagCloudController:cloud')->setName('tagcloud');
1573     $this->get('/tag-list', '\Shaarli\Front\Controller\TagCloudController:list')->setName('taglist');
1574     $this->get('/daily', '\Shaarli\Front\Controller\DailyController:index')->setName('daily');
1575     $this->get('/daily-rss', '\Shaarli\Front\Controller\DailyController:rss')->setName('dailyrss');
1576     $this->get('/feed-atom', '\Shaarli\Front\Controller\FeedController:atom')->setName('feedatom');
1577     $this->get('/feed-rss', '\Shaarli\Front\Controller\FeedController:rss')->setName('feedrss');
1578
1579     $this->get('/add-tag/{newTag}', '\Shaarli\Front\Controller\TagController:addTag')->setName('add-tag');
1580 })->add('\Shaarli\Front\ShaarliMiddleware');
1581
1582 $response = $app->run(true);
1583
1584 // Hack to make Slim and Shaarli router work together:
1585 // If a Slim route isn't found and NOT API call, we call renderPage().
1586 if ($response->getStatusCode() == 404 && strpos($_SERVER['REQUEST_URI'], '/api/v1') === false) {
1587     // We use UTF-8 for proper international characters handling.
1588     header('Content-Type: text/html; charset=utf-8');
1589     renderPage($conf, $pluginManager, $linkDb, $history, $sessionManager, $loginManager);
1590 } else {
1591     $response = $response
1592         ->withHeader('Access-Control-Allow-Origin', '*')
1593         ->withHeader(
1594             'Access-Control-Allow-Headers',
1595             'X-Requested-With, Content-Type, Accept, Origin, Authorization'
1596         )
1597         ->withHeader('Access-Control-Allow-Methods', 'GET, POST, PUT, DELETE, OPTIONS');
1598     $app->respond($response);
1599 }