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('Location: ./open-search');
 443         exit;
 444     }
 445
 446     // -------- User clicks on a tag in a link: The tag is added to the list of searched tags (searchtags=...)
 447     if (isset($_GET['addtag'])) {
 448         header('Location: ./add-tag/'. $_GET['addtag']);
 449         exit;
 450     }
 451
 452     // -------- User clicks on a tag in result count: Remove the tag from the list of searched tags (searchtags=...)
 453     if (isset($_GET['removetag'])) {
 454         header('Location: ./remove-tag/'. $_GET['removetag']);
 455         exit;
 456     }
 457
 458     // -------- User wants to change the number of bookmarks per page (linksperpage=...)
 459     if (isset($_GET['linksperpage'])) {
 460         if (is_numeric($_GET['linksperpage'])) {
 461             $_SESSION['LINKS_PER_PAGE']=abs(intval($_GET['linksperpage']));
 462         }
 463
 464         if (! empty($_SERVER['HTTP_REFERER'])) {
 465             $location = generateLocation($_SERVER['HTTP_REFERER'], $_SERVER['HTTP_HOST'], array('linksperpage'));
 466         } else {
 467             $location = '?';
 468         }
 469         header('Location: '. $location);
 470         exit;
 471     }
 472
 473     // -------- User wants to see only private bookmarks (toggle)
 474     if (isset($_GET['visibility'])) {
 475         if ($_GET['visibility'] === 'private') {
 476             // Visibility not set or not already private, set private, otherwise reset it
 477             if (empty($_SESSION['visibility']) || $_SESSION['visibility'] !== 'private') {
 478                 // See only private bookmarks
 479                 $_SESSION['visibility'] = 'private';
 480             } else {
 481                 unset($_SESSION['visibility']);
 482             }
 483         } elseif ($_GET['visibility'] === 'public') {
 484             if (empty($_SESSION['visibility']) || $_SESSION['visibility'] !== 'public') {
 485                 // See only public bookmarks
 486                 $_SESSION['visibility'] = 'public';
 487             } else {
 488                 unset($_SESSION['visibility']);
 489             }
 490         }
 491
 492         if (! empty($_SERVER['HTTP_REFERER'])) {
 493             $location = generateLocation($_SERVER['HTTP_REFERER'], $_SERVER['HTTP_HOST'], array('visibility'));
 494         } else {
 495             $location = '?';
 496         }
 497         header('Location: '. $location);
 498         exit;
 499     }
 500
 501     // -------- User wants to see only untagged bookmarks (toggle)
 502     if (isset($_GET['untaggedonly'])) {
 503         $_SESSION['untaggedonly'] = empty($_SESSION['untaggedonly']);
 504
 505         if (! empty($_SERVER['HTTP_REFERER'])) {
 506             $location = generateLocation($_SERVER['HTTP_REFERER'], $_SERVER['HTTP_HOST'], array('untaggedonly'));
 507         } else {
 508             $location = '?';
 509         }
 510         header('Location: '. $location);
 511         exit;
 512     }
 513
 514     // -------- Handle other actions allowed for non-logged in users:
 515     if (!$loginManager->isLoggedIn()) {
 516         // User tries to post new link but is not logged in:
 517         // Show login screen, then redirect to ?post=...
 518         if (isset($_GET['post'])) {
 519             header( // Redirect to login page, then back to post link.
 520                 'Location: ./login?post='.urlencode($_GET['post']).
 521                 (!empty($_GET['title'])?'&title='.urlencode($_GET['title']):'').
 522                 (!empty($_GET['description'])?'&description='.urlencode($_GET['description']):'').
 523                 (!empty($_GET['tags'])?'&tags='.urlencode($_GET['tags']):'').
 524                 (!empty($_GET['source'])?'&source='.urlencode($_GET['source']):'')
 525             );
 526             exit;
 527         }
 528
 529         showLinkList($PAGE, $bookmarkService, $conf, $pluginManager, $loginManager);
 530         if (isset($_GET['edit_link'])) {
 531             header('Location: ./login?edit_link='. escape($_GET['edit_link']));
 532             exit;
 533         }
 534
 535         exit; // Never remove this one! All operations below are reserved for logged in user.
 536     }
 537
 538     // -------- All other functions are reserved for the registered user:
 539
 540     // -------- Display the Tools menu if requested (import/export/bookmarklet...)
 541     if ($targetPage == Router::$PAGE_TOOLS) {
 542         $data = [
 543             'pageabsaddr' => index_url($_SERVER),
 544             'sslenabled' => is_https($_SERVER),
 545         ];
 546         $pluginManager->executeHooks('render_tools', $data);
 547
 548         foreach ($data as $key => $value) {
 549             $PAGE->assign($key, $value);
 550         }
 551
 552         $PAGE->assign('pagetitle', t('Tools') .' - '. $conf->get('general.title', 'Shaarli'));
 553         $PAGE->renderPage('tools');
 554         exit;
 555     }
 556
 557     // -------- User wants to change his/her password.
 558     if ($targetPage == Router::$PAGE_CHANGEPASSWORD) {
 559         if ($conf->get('security.open_shaarli')) {
 560             die(t('You are not supposed to change a password on an Open Shaarli.'));
 561         }
 562
 563         if (!empty($_POST['setpassword']) && !empty($_POST['oldpassword'])) {
 564             if (!$sessionManager->checkToken($_POST['token'])) {
 565                 die(t('Wrong token.')); // Go away!
 566             }
 567
 568             // Make sure old password is correct.
 569             $oldhash = sha1(
 570                 $_POST['oldpassword'].$conf->get('credentials.login').$conf->get('credentials.salt')
 571             );
 572             if ($oldhash != $conf->get('credentials.hash')) {
 573                 echo '<script>alert("'
 574                     . t('The old password is not correct.')
 575                     .'");document.location=\'./?do=changepasswd\';</script>';
 576                 exit;
 577             }
 578             // Save new password
 579             // Salt renders rainbow-tables attacks useless.
 580             $conf->set('credentials.salt', sha1(uniqid('', true) .'_'. mt_rand()));
 581             $conf->set(
 582                 'credentials.hash',
 583                 sha1(
 584                     $_POST['setpassword']
 585                     . $conf->get('credentials.login')
 586                     . $conf->get('credentials.salt')
 587                 )
 588             );
 589             try {
 590                 $conf->write($loginManager->isLoggedIn());
 591             } catch (Exception $e) {
 592                 error_log(
 593                     'ERROR while writing config file after changing password.' . PHP_EOL .
 594                     $e->getMessage()
 595                 );
 596
 597                 // TODO: do not handle exceptions/errors in JS.
 598                 echo '<script>alert("'. $e->getMessage() .'");document.location=\'./?do=tools\';</script>';
 599                 exit;
 600             }
 601             echo '<script>alert("'. t('Your password has been changed') .'");document.location=\'./?do=tools\';</script>';
 602             exit;
 603         } else {
 604             // show the change password form.
 605             $PAGE->assign('pagetitle', t('Change password') .' - '. $conf->get('general.title', 'Shaarli'));
 606             $PAGE->renderPage('changepassword');
 607             exit;
 608         }
 609     }
 610
 611     // -------- User wants to change configuration
 612     if ($targetPage == Router::$PAGE_CONFIGURE) {
 613         if (!empty($_POST['title'])) {
 614             if (!$sessionManager->checkToken($_POST['token'])) {
 615                 die(t('Wrong token.')); // Go away!
 616             }
 617             $tz = 'UTC';
 618             if (!empty($_POST['continent']) && !empty($_POST['city'])
 619                 && isTimeZoneValid($_POST['continent'], $_POST['city'])
 620             ) {
 621                 $tz = $_POST['continent'] . '/' . $_POST['city'];
 622             }
 623             $conf->set('general.timezone', $tz);
 624             $conf->set('general.title', escape($_POST['title']));
 625             $conf->set('general.header_link', escape($_POST['titleLink']));
 626             $conf->set('general.retrieve_description', !empty($_POST['retrieveDescription']));
 627             $conf->set('resource.theme', escape($_POST['theme']));
 628             $conf->set('security.session_protection_disabled', !empty($_POST['disablesessionprotection']));
 629             $conf->set('privacy.default_private_links', !empty($_POST['privateLinkByDefault']));
 630             $conf->set('feed.rss_permalinks', !empty($_POST['enableRssPermalinks']));
 631             $conf->set('updates.check_updates', !empty($_POST['updateCheck']));
 632             $conf->set('privacy.hide_public_links', !empty($_POST['hidePublicLinks']));
 633             $conf->set('api.enabled', !empty($_POST['enableApi']));
 634             $conf->set('api.secret', escape($_POST['apiSecret']));
 635             $conf->set('formatter', escape($_POST['formatter']));
 636
 637             if (! empty($_POST['language'])) {
 638                 $conf->set('translation.language', escape($_POST['language']));
 639             }
 640
 641             $thumbnailsMode = extension_loaded('gd') ? $_POST['enableThumbnails'] : Thumbnailer::MODE_NONE;
 642             if ($thumbnailsMode !== Thumbnailer::MODE_NONE
 643                 && $thumbnailsMode !== $conf->get('thumbnails.mode', Thumbnailer::MODE_NONE)
 644             ) {
 645                 $_SESSION['warnings'][] = t(
 646                     'You have enabled or changed thumbnails mode. '
 647                     .'<a href="./?do=thumbs_update">Please synchronize them</a>.'
 648                 );
 649             }
 650             $conf->set('thumbnails.mode', $thumbnailsMode);
 651
 652             try {
 653                 $conf->write($loginManager->isLoggedIn());
 654                 $history->updateSettings();
 655                 $pageCacheManager->invalidateCaches();
 656             } catch (Exception $e) {
 657                 error_log(
 658                     'ERROR while writing config file after configuration update.' . PHP_EOL .
 659                     $e->getMessage()
 660                 );
 661
 662                 // TODO: do not handle exceptions/errors in JS.
 663                 echo '<script>alert("'. $e->getMessage() .'");document.location=\'./?do=configure\';</script>';
 664                 exit;
 665             }
 666             echo '<script>alert("'. t('Configuration was saved.') .'");document.location=\'./?do=configure\';</script>';
 667             exit;
 668         } else {
 669             // Show the configuration form.
 670             $PAGE->assign('title', $conf->get('general.title'));
 671             $PAGE->assign('theme', $conf->get('resource.theme'));
 672             $PAGE->assign('theme_available', ThemeUtils::getThemes($conf->get('resource.raintpl_tpl')));
 673             $PAGE->assign('formatter_available', ['default', 'markdown']);
 674             list($continents, $cities) = generateTimeZoneData(
 675                 timezone_identifiers_list(),
 676                 $conf->get('general.timezone')
 677             );
 678             $PAGE->assign('continents', $continents);
 679             $PAGE->assign('cities', $cities);
 680             $PAGE->assign('retrieve_description', $conf->get('general.retrieve_description'));
 681             $PAGE->assign('private_links_default', $conf->get('privacy.default_private_links', false));
 682             $PAGE->assign('session_protection_disabled', $conf->get('security.session_protection_disabled', false));
 683             $PAGE->assign('enable_rss_permalinks', $conf->get('feed.rss_permalinks', false));
 684             $PAGE->assign('enable_update_check', $conf->get('updates.check_updates', true));
 685             $PAGE->assign('hide_public_links', $conf->get('privacy.hide_public_links', false));
 686             $PAGE->assign('api_enabled', $conf->get('api.enabled', true));
 687             $PAGE->assign('api_secret', $conf->get('api.secret'));
 688             $PAGE->assign('languages', Languages::getAvailableLanguages());
 689             $PAGE->assign('gd_enabled', extension_loaded('gd'));
 690             $PAGE->assign('thumbnails_mode', $conf->get('thumbnails.mode', Thumbnailer::MODE_NONE));
 691             $PAGE->assign('pagetitle', t('Configure') .' - '. $conf->get('general.title', 'Shaarli'));
 692             $PAGE->renderPage('configure');
 693             exit;
 694         }
 695     }
 696
 697     // -------- User wants to rename a tag or delete it
 698     if ($targetPage == Router::$PAGE_CHANGETAG) {
 699         if (empty($_POST['fromtag']) || (empty($_POST['totag']) && isset($_POST['renametag']))) {
 700             $PAGE->assign('fromtag', ! empty($_GET['fromtag']) ? escape($_GET['fromtag']) : '');
 701             $PAGE->assign('pagetitle', t('Manage tags') .' - '. $conf->get('general.title', 'Shaarli'));
 702             $PAGE->renderPage('changetag');
 703             exit;
 704         }
 705
 706         if (!$sessionManager->checkToken($_POST['token'])) {
 707             die(t('Wrong token.'));
 708         }
 709
 710         $toTag = isset($_POST['totag']) ? escape($_POST['totag']) : null;
 711         $fromTag = escape($_POST['fromtag']);
 712         $count = 0;
 713         $bookmarks = $bookmarkService->search(['searchtags' => $fromTag], BookmarkFilter::$ALL, true);
 714         foreach ($bookmarks as $bookmark) {
 715             if ($toTag) {
 716                 $bookmark->renameTag($fromTag, $toTag);
 717             } else {
 718                 $bookmark->deleteTag($fromTag);
 719             }
 720             $bookmarkService->set($bookmark, false);
 721             $history->updateLink($bookmark);
 722             $count++;
 723         }
 724         $bookmarkService->save();
 725         $delete = empty($_POST['totag']);
 726         $redirect = $delete ? './do=changetag' : 'searchtags='. urlencode(escape($_POST['totag']));
 727         $alert = $delete
 728             ? sprintf(t('The tag was removed from %d link.', 'The tag was removed from %d bookmarks.', $count), $count)
 729             : sprintf(t('The tag was renamed in %d link.', 'The tag was renamed in %d bookmarks.', $count), $count);
 730         echo '<script>alert("'. $alert .'");document.location=\'?'. $redirect .'\';</script>';
 731         exit;
 732     }
 733
 734     // -------- User wants to add a link without using the bookmarklet: Show form.
 735     if ($targetPage == Router::$PAGE_ADDLINK) {
 736         $PAGE->assign('pagetitle', t('Shaare a new link') .' - '. $conf->get('general.title', 'Shaarli'));
 737         $PAGE->renderPage('addlink');
 738         exit;
 739     }
 740
 741     // -------- User clicked the "Save" button when editing a link: Save link to database.
 742     if (isset($_POST['save_edit'])) {
 743         // Go away!
 744         if (! $sessionManager->checkToken($_POST['token'])) {
 745             die(t('Wrong token.'));
 746         }
 747
 748         // lf_id should only be present if the link exists.
 749         $id = isset($_POST['lf_id']) ? intval(escape($_POST['lf_id'])) : null;
 750         if ($id && $bookmarkService->exists($id)) {
 751             // Edit
 752             $bookmark = $bookmarkService->get($id);
 753         } else {
 754             // New link
 755             $bookmark = new Bookmark();
 756         }
 757
 758         $bookmark->setTitle($_POST['lf_title']);
 759         $bookmark->setDescription($_POST['lf_description']);
 760         $bookmark->setUrl($_POST['lf_url'], $conf->get('security.allowed_protocols'));
 761         $bookmark->setPrivate(isset($_POST['lf_private']));
 762         $bookmark->setTagsString($_POST['lf_tags']);
 763
 764         if ($conf->get('thumbnails.mode', Thumbnailer::MODE_NONE) !== Thumbnailer::MODE_NONE
 765             && ! $bookmark->isNote()
 766         ) {
 767             $thumbnailer = new Thumbnailer($conf);
 768             $bookmark->setThumbnail($thumbnailer->get($bookmark->getUrl()));
 769         }
 770         $bookmarkService->addOrSet($bookmark, false);
 771
 772         // To preserve backward compatibility with 3rd parties, plugins still use arrays
 773         $factory = new FormatterFactory($conf, $loginManager->isLoggedIn());
 774         $formatter = $factory->getFormatter('raw');
 775         $data = $formatter->format($bookmark);
 776         $pluginManager->executeHooks('save_link', $data);
 777
 778         $bookmark->fromArray($data);
 779         $bookmarkService->set($bookmark);
 780
 781         // If we are called from the bookmarklet, we must close the popup:
 782         if (isset($_GET['source']) && ($_GET['source']=='bookmarklet' || $_GET['source']=='firefoxsocialapi')) {
 783             echo '<script>self.close();</script>';
 784             exit;
 785         }
 786
 787         $returnurl = !empty($_POST['returnurl']) ? $_POST['returnurl'] : '?';
 788         $location = generateLocation($returnurl, $_SERVER['HTTP_HOST'], array('addlink', 'post', 'edit_link'));
 789         // Scroll to the link which has been edited.
 790         $location .= '#' . $bookmark->getShortUrl();
 791         // After saving the link, redirect to the page the user was on.
 792         header('Location: '. $location);
 793         exit;
 794     }
 795
 796     // -------- User clicked the "Delete" button when editing a link: Delete link from database.
 797     if ($targetPage == Router::$PAGE_DELETELINK) {
 798         if (! $sessionManager->checkToken($_GET['token'])) {
 799             die(t('Wrong token.'));
 800         }
 801
 802         $ids = trim($_GET['lf_linkdate']);
 803         if (strpos($ids, ' ') !== false) {
 804             // multiple, space-separated ids provided
 805             $ids = array_values(array_filter(
 806                 preg_split('/\s+/', escape($ids)),
 807                 function ($item) {
 808                     return $item !== '';
 809                 }
 810             ));
 811         } else {
 812             // only a single id provided
 813             $shortUrl = $bookmarkService->get($ids)->getShortUrl();
 814             $ids = [$ids];
 815         }
 816         // assert at least one id is given
 817         if (!count($ids)) {
 818             die('no id provided');
 819         }
 820         $factory = new FormatterFactory($conf, $loginManager->isLoggedIn());
 821         $formatter = $factory->getFormatter('raw');
 822         foreach ($ids as $id) {
 823             $id = (int) escape($id);
 824             $bookmark = $bookmarkService->get($id);
 825             $data = $formatter->format($bookmark);
 826             $pluginManager->executeHooks('delete_link', $data);
 827             $bookmarkService->remove($bookmark, false);
 828         }
 829         $bookmarkService->save();
 830
 831         // If we are called from the bookmarklet, we must close the popup:
 832         if (isset($_GET['source']) && ($_GET['source']=='bookmarklet' || $_GET['source']=='firefoxsocialapi')) {
 833             echo '<script>self.close();</script>';
 834             exit;
 835         }
 836
 837         $location = '?';
 838         if (isset($_SERVER['HTTP_REFERER'])) {
 839             // Don't redirect to where we were previously if it was a permalink or an edit_link, because it would 404.
 840             $location = generateLocation(
 841                 $_SERVER['HTTP_REFERER'],
 842                 $_SERVER['HTTP_HOST'],
 843                 ['delete_link', 'edit_link', ! empty($shortUrl) ? $shortUrl : null]
 844             );
 845         }
 846
 847         header('Location: ' . $location); // After deleting the link, redirect to appropriate location
 848         exit;
 849     }
 850
 851     // -------- User clicked either "Set public" or "Set private" bulk operation
 852     if ($targetPage == Router::$PAGE_CHANGE_VISIBILITY) {
 853         if (! $sessionManager->checkToken($_GET['token'])) {
 854             die(t('Wrong token.'));
 855         }
 856
 857         $ids = trim($_GET['ids']);
 858         if (strpos($ids, ' ') !== false) {
 859             // multiple, space-separated ids provided
 860             $ids = array_values(array_filter(preg_split('/\s+/', escape($ids))));
 861         } else {
 862             // only a single id provided
 863             $ids = [$ids];
 864         }
 865
 866         // assert at least one id is given
 867         if (!count($ids)) {
 868             die('no id provided');
 869         }
 870         // assert that the visibility is valid
 871         if (!isset($_GET['newVisibility']) || !in_array($_GET['newVisibility'], ['public', 'private'])) {
 872             die('invalid visibility');
 873         } else {
 874             $private = $_GET['newVisibility'] === 'private';
 875         }
 876         $factory = new FormatterFactory($conf, $loginManager->isLoggedIn());
 877         $formatter = $factory->getFormatter('raw');
 878         foreach ($ids as $id) {
 879             $id = (int) escape($id);
 880             $bookmark = $bookmarkService->get($id);
 881             $bookmark->setPrivate($private);
 882
 883             // To preserve backward compatibility with 3rd parties, plugins still use arrays
 884             $data = $formatter->format($bookmark);
 885             $pluginManager->executeHooks('save_link', $data);
 886             $bookmark->fromArray($data);
 887
 888             $bookmarkService->set($bookmark);
 889         }
 890         $bookmarkService->save();
 891
 892         $location = '?';
 893         if (isset($_SERVER['HTTP_REFERER'])) {
 894             $location = generateLocation(
 895                 $_SERVER['HTTP_REFERER'],
 896                 $_SERVER['HTTP_HOST']
 897             );
 898         }
 899         header('Location: ' . $location); // After deleting the link, redirect to appropriate location
 900         exit;
 901     }
 902
 903     // -------- User clicked the "EDIT" button on a link: Display link edit form.
 904     if (isset($_GET['edit_link'])) {
 905         $id = (int) escape($_GET['edit_link']);
 906         try {
 907             $link = $bookmarkService->get($id);  // Read database
 908         } catch (BookmarkNotFoundException $e) {
 909             // Link not found in database.
 910             header('Location: ?');
 911             exit;
 912         }
 913
 914         $factory = new FormatterFactory($conf, $loginManager->isLoggedIn());
 915         $formatter = $factory->getFormatter('raw');
 916         $formattedLink = $formatter->format($link);
 917         $tags = $bookmarkService->bookmarksCountPerTag();
 918         if ($conf->get('formatter') === 'markdown') {
 919             $tags[BookmarkMarkdownFormatter::NO_MD_TAG] = 1;
 920         }
 921         $data = array(
 922             'link' => $formattedLink,
 923             'link_is_new' => false,
 924             'http_referer' => (isset($_SERVER['HTTP_REFERER']) ? escape($_SERVER['HTTP_REFERER']) : ''),
 925             'tags' => $tags,
 926         );
 927         $pluginManager->executeHooks('render_editlink', $data);
 928
 929         foreach ($data as $key => $value) {
 930             $PAGE->assign($key, $value);
 931         }
 932
 933         $PAGE->assign('pagetitle', t('Edit') .' '. t('Shaare') .' - '. $conf->get('general.title', 'Shaarli'));
 934         $PAGE->renderPage('editlink');
 935         exit;
 936     }
 937
 938     // -------- User want to post a new link: Display link edit form.
 939     if (isset($_GET['post'])) {
 940         $url = cleanup_url($_GET['post']);
 941
 942         $link_is_new = false;
 943         // Check if URL is not already in database (in this case, we will edit the existing link)
 944         $bookmark = $bookmarkService->findByUrl($url);
 945         if (! $bookmark) {
 946             $link_is_new = true;
 947             // Get title if it was provided in URL (by the bookmarklet).
 948             $title = empty($_GET['title']) ? '' : escape($_GET['title']);
 949             // Get description if it was provided in URL (by the bookmarklet). [Bronco added that]
 950             $description = empty($_GET['description']) ? '' : escape($_GET['description']);
 951             $tags = empty($_GET['tags']) ? '' : escape($_GET['tags']);
 952             $private = !empty($_GET['private']) && $_GET['private'] === "1" ? 1 : 0;
 953
 954             // If this is an HTTP(S) link, we try go get the page to extract
 955             // the title (otherwise we will to straight to the edit form.)
 956             if (empty($title) && strpos(get_url_scheme($url), 'http') !== false) {
 957                 $retrieveDescription = $conf->get('general.retrieve_description');
 958                 // Short timeout to keep the application responsive
 959                 // The callback will fill $charset and $title with data from the downloaded page.
 960                 get_http_response(
 961                     $url,
 962                     $conf->get('general.download_timeout', 30),
 963                     $conf->get('general.download_max_size', 4194304),
 964                     get_curl_download_callback($charset, $title, $description, $tags, $retrieveDescription)
 965                 );
 966                 if (! empty($title) && strtolower($charset) != 'utf-8') {
 967                     $title = mb_convert_encoding($title, 'utf-8', $charset);
 968                 }
 969             }
 970
 971             if ($url == '') {
 972                 $title = $conf->get('general.default_note_title', t('Note: '));
 973             }
 974             $url = escape($url);
 975             $title = escape($title);
 976
 977             $link = [
 978                 'title' => $title,
 979                 'url' => $url,
 980                 'description' => $description,
 981                 'tags' => $tags,
 982                 'private' => $private,
 983             ];
 984         } else {
 985             $factory = new FormatterFactory($conf, $loginManager->isLoggedIn());
 986             $formatter = $factory->getFormatter('raw');
 987             $link = $formatter->format($bookmark);
 988         }
 989
 990         $tags = $bookmarkService->bookmarksCountPerTag();
 991         if ($conf->get('formatter') === 'markdown') {
 992             $tags[BookmarkMarkdownFormatter::NO_MD_TAG] = 1;
 993         }
 994         $data = [
 995             'link' => $link,
 996             'link_is_new' => $link_is_new,
 997             'http_referer' => (isset($_SERVER['HTTP_REFERER']) ? escape($_SERVER['HTTP_REFERER']) : ''),
 998             'source' => (isset($_GET['source']) ? $_GET['source'] : ''),
 999             'tags' => $tags,
1000             'default_private_links' => $conf->get('privacy.default_private_links', false),
1001         ];
1002         $pluginManager->executeHooks('render_editlink', $data);
1003
1004         foreach ($data as $key => $value) {
1005             $PAGE->assign($key, $value);
1006         }
1007
1008         $PAGE->assign('pagetitle', t('Shaare') .' - '. $conf->get('general.title', 'Shaarli'));
1009         $PAGE->renderPage('editlink');
1010         exit;
1011     }
1012
1013     if ($targetPage == Router::$PAGE_PINLINK) {
1014         if (! isset($_GET['id']) || !$bookmarkService->exists($_GET['id'])) {
1015             // FIXME! Use a proper error system.
1016             $msg = t('Invalid link ID provided');
1017             echo '<script>alert("'. $msg .'");document.location=\''. index_url($_SERVER) .'\';</script>';
1018             exit;
1019         }
1020         if (! $sessionManager->checkToken($_GET['token'])) {
1021             die('Wrong token.');
1022         }
1023
1024         $link = $bookmarkService->get($_GET['id']);
1025         $link->setSticky(! $link->isSticky());
1026         $bookmarkService->set($link);
1027         header('Location: '.index_url($_SERVER));
1028         exit;
1029     }
1030
1031     if ($targetPage == Router::$PAGE_EXPORT) {
1032         // Export bookmarks as a Netscape Bookmarks file
1033
1034         if (empty($_GET['selection'])) {
1035             $PAGE->assign('pagetitle', t('Export') .' - '. $conf->get('general.title', 'Shaarli'));
1036             $PAGE->renderPage('export');
1037             exit;
1038         }
1039
1040         // export as bookmarks_(all|private|public)_YYYYmmdd_HHMMSS.html
1041         $selection = $_GET['selection'];
1042         if (isset($_GET['prepend_note_url'])) {
1043             $prependNoteUrl = $_GET['prepend_note_url'];
1044         } else {
1045             $prependNoteUrl = false;
1046         }
1047
1048         try {
1049             $factory = new FormatterFactory($conf, $loginManager->isLoggedIn());
1050             $formatter = $factory->getFormatter('raw');
1051             $PAGE->assign(
1052                 'links',
1053                 NetscapeBookmarkUtils::filterAndFormat(
1054                     $bookmarkService,
1055                     $formatter,
1056                     $selection,
1057                     $prependNoteUrl,
1058                     index_url($_SERVER)
1059                 )
1060             );
1061         } catch (Exception $exc) {
1062             header('Content-Type: text/plain; charset=utf-8');
1063             echo $exc->getMessage();
1064             exit;
1065         }
1066         $now = new DateTime();
1067         header('Content-Type: text/html; charset=utf-8');
1068         header(
1069             'Content-disposition: attachment; filename=bookmarks_'
1070             .$selection.'_'.$now->format(Bookmark::LINK_DATE_FORMAT).'.html'
1071         );
1072         $PAGE->assign('date', $now->format(DateTime::RFC822));
1073         $PAGE->assign('eol', PHP_EOL);
1074         $PAGE->assign('selection', $selection);
1075         $PAGE->renderPage('export.bookmarks');
1076         exit;
1077     }
1078
1079     if ($targetPage == Router::$PAGE_IMPORT) {
1080         // Upload a Netscape bookmark dump to import its contents
1081
1082         if (! isset($_POST['token']) || ! isset($_FILES['filetoupload'])) {
1083             // Show import dialog
1084             $PAGE->assign(
1085                 'maxfilesize',
1086                 get_max_upload_size(
1087                     ini_get('post_max_size'),
1088                     ini_get('upload_max_filesize'),
1089                     false
1090                 )
1091             );
1092             $PAGE->assign(
1093                 'maxfilesizeHuman',
1094                 get_max_upload_size(
1095                     ini_get('post_max_size'),
1096                     ini_get('upload_max_filesize'),
1097                     true
1098                 )
1099             );
1100             $PAGE->assign('pagetitle', t('Import') .' - '. $conf->get('general.title', 'Shaarli'));
1101             $PAGE->renderPage('import');
1102             exit;
1103         }
1104
1105         // Import bookmarks from an uploaded file
1106         if (isset($_FILES['filetoupload']['size']) && $_FILES['filetoupload']['size'] == 0) {
1107             // The file is too big or some form field may be missing.
1108             $msg = sprintf(
1109                 t(
1110                     'The file you are trying to upload is probably bigger than what this webserver can accept'
1111                     .' (%s). Please upload in smaller chunks.'
1112                 ),
1113                 get_max_upload_size(ini_get('post_max_size'), ini_get('upload_max_filesize'))
1114             );
1115             echo '<script>alert("'. $msg .'");document.location=\'./?do='.Router::$PAGE_IMPORT .'\';</script>';
1116             exit;
1117         }
1118         if (! $sessionManager->checkToken($_POST['token'])) {
1119             die('Wrong token.');
1120         }
1121         $status = NetscapeBookmarkUtils::import(
1122             $_POST,
1123             $_FILES,
1124             $bookmarkService,
1125             $conf,
1126             $history
1127         );
1128         echo '<script>alert("'.$status.'");document.location=\'./?do='
1129              .Router::$PAGE_IMPORT .'\';</script>';
1130         exit;
1131     }
1132
1133     // Plugin administration page
1134     if ($targetPage == Router::$PAGE_PLUGINSADMIN) {
1135         $pluginMeta = $pluginManager->getPluginsMeta();
1136
1137         // Split plugins into 2 arrays: ordered enabled plugins and disabled.
1138         $enabledPlugins = array_filter($pluginMeta, function ($v) {
1139             return $v['order'] !== false;
1140         });
1141         // Load parameters.
1142         $enabledPlugins = load_plugin_parameter_values($enabledPlugins, $conf->get('plugins', array()));
1143         uasort(
1144             $enabledPlugins,
1145             function ($a, $b) {
1146                 return $a['order'] - $b['order'];
1147             }
1148         );
1149         $disabledPlugins = array_filter($pluginMeta, function ($v) {
1150             return $v['order'] === false;
1151         });
1152
1153         $PAGE->assign('enabledPlugins', $enabledPlugins);
1154         $PAGE->assign('disabledPlugins', $disabledPlugins);
1155         $PAGE->assign('pagetitle', t('Plugin administration') .' - '. $conf->get('general.title', 'Shaarli'));
1156         $PAGE->renderPage('pluginsadmin');
1157         exit;
1158     }
1159
1160     // Plugin administration form action
1161     if ($targetPage == Router::$PAGE_SAVE_PLUGINSADMIN) {
1162         try {
1163             if (isset($_POST['parameters_form'])) {
1164                 $pluginManager->executeHooks('save_plugin_parameters', $_POST);
1165                 unset($_POST['parameters_form']);
1166                 foreach ($_POST as $param => $value) {
1167                     $conf->set('plugins.'. $param, escape($value));
1168                 }
1169             } else {
1170                 $conf->set('general.enabled_plugins', save_plugin_config($_POST));
1171             }
1172             $conf->write($loginManager->isLoggedIn());
1173             $history->updateSettings();
1174         } catch (Exception $e) {
1175             error_log(
1176                 'ERROR while saving plugin configuration:.' . PHP_EOL .
1177                 $e->getMessage()
1178             );
1179
1180             // TODO: do not handle exceptions/errors in JS.
1181             echo '<script>alert("'
1182                 . $e->getMessage()
1183                 .'");document.location=\'./?do='
1184                 . Router::$PAGE_PLUGINSADMIN
1185                 .'\';</script>';
1186             exit;
1187         }
1188         header('Location: ./?do='. Router::$PAGE_PLUGINSADMIN);
1189         exit;
1190     }
1191
1192     // Get a fresh token
1193     if ($targetPage == Router::$GET_TOKEN) {
1194         header('Content-Type:text/plain');
1195         echo $sessionManager->generateToken();
1196         exit;
1197     }
1198
1199     // -------- Thumbnails Update
1200     if ($targetPage == Router::$PAGE_THUMBS_UPDATE) {
1201         $ids = [];
1202         foreach ($bookmarkService->search() as $bookmark) {
1203             // A note or not HTTP(S)
1204             if ($bookmark->isNote() || ! startsWith(strtolower($bookmark->getUrl()), 'http')) {
1205                 continue;
1206             }
1207             $ids[] = $bookmark->getId();
1208         }
1209         $PAGE->assign('ids', $ids);
1210         $PAGE->assign('pagetitle', t('Thumbnails update') .' - '. $conf->get('general.title', 'Shaarli'));
1211         $PAGE->renderPage('thumbnails');
1212         exit;
1213     }
1214
1215     // -------- Single Thumbnail Update
1216     if ($targetPage == Router::$AJAX_THUMB_UPDATE) {
1217         if (! isset($_POST['id']) || ! ctype_digit($_POST['id'])) {
1218             http_response_code(400);
1219             exit;
1220         }
1221         $id = (int) $_POST['id'];
1222         if (! $bookmarkService->exists($id)) {
1223             http_response_code(404);
1224             exit;
1225         }
1226         $thumbnailer = new Thumbnailer($conf);
1227         $bookmark = $bookmarkService->get($id);
1228         $bookmark->setThumbnail($thumbnailer->get($bookmark->getUrl()));
1229         $bookmarkService->set($bookmark);
1230
1231         $factory = new FormatterFactory($conf, $loginManager->isLoggedIn());
1232         echo json_encode($factory->getFormatter('raw')->format($bookmark));
1233         exit;
1234     }
1235
1236     // -------- Otherwise, simply display search form and bookmarks:
1237     showLinkList($PAGE, $bookmarkService, $conf, $pluginManager, $loginManager);
1238     exit;
1239 }
1240
1241 /**
1242  * Template for the list of bookmarks (<div id="linklist">)
1243  * This function fills all the necessary fields in the $PAGE for the template 'linklist.html'
1244  *
1245  * @param pageBuilder              $PAGE          pageBuilder instance.
1246  * @param BookmarkServiceInterface $linkDb        LinkDB instance.
1247  * @param ConfigManager            $conf          Configuration Manager instance.
1248  * @param PluginManager            $pluginManager Plugin Manager instance.
1249  * @param LoginManager             $loginManager  LoginManager instance
1250  */
1251 function buildLinkList($PAGE, $linkDb, $conf, $pluginManager, $loginManager)
1252 {
1253     $factory = new FormatterFactory($conf, $loginManager->isLoggedIn());
1254     $formatter = $factory->getFormatter();
1255
1256     // Used in templates
1257     if (isset($_GET['searchtags'])) {
1258         if (! empty($_GET['searchtags'])) {
1259             $searchtags = escape(normalize_spaces($_GET['searchtags']));
1260         } else {
1261             $searchtags = false;
1262         }
1263     } else {
1264         $searchtags = '';
1265     }
1266     $searchterm = !empty($_GET['searchterm']) ? escape(normalize_spaces($_GET['searchterm'])) : '';
1267
1268     // Smallhash filter
1269     if (! empty($_SERVER['QUERY_STRING'])
1270         && preg_match('/^[a-zA-Z0-9-_@]{6}($|&|#)/', $_SERVER['QUERY_STRING'])) {
1271         try {
1272             $linksToDisplay = $linkDb->findByHash($_SERVER['QUERY_STRING']);
1273         } catch (BookmarkNotFoundException $e) {
1274             $PAGE->render404($e->getMessage());
1275             exit;
1276         }
1277     } else {
1278         // Filter bookmarks according search parameters.
1279         $visibility = ! empty($_SESSION['visibility']) ? $_SESSION['visibility'] : null;
1280         $request = [
1281             'searchtags' => $searchtags,
1282             'searchterm' => $searchterm,
1283         ];
1284         $linksToDisplay = $linkDb->search($request, $visibility, false, !empty($_SESSION['untaggedonly']));
1285     }
1286
1287     // ---- Handle paging.
1288     $keys = array();
1289     foreach ($linksToDisplay as $key => $value) {
1290         $keys[] = $key;
1291     }
1292
1293     // Select articles according to paging.
1294     $pagecount = ceil(count($keys) / $_SESSION['LINKS_PER_PAGE']);
1295     $pagecount = $pagecount == 0 ? 1 : $pagecount;
1296     $page= empty($_GET['page']) ? 1 : intval($_GET['page']);
1297     $page = $page < 1 ? 1 : $page;
1298     $page = $page > $pagecount ? $pagecount : $page;
1299     // Start index.
1300     $i = ($page-1) * $_SESSION['LINKS_PER_PAGE'];
1301     $end = $i + $_SESSION['LINKS_PER_PAGE'];
1302
1303     $thumbnailsEnabled = $conf->get('thumbnails.mode', Thumbnailer::MODE_NONE) !== Thumbnailer::MODE_NONE;
1304     if ($thumbnailsEnabled) {
1305         $thumbnailer = new Thumbnailer($conf);
1306     }
1307
1308     $linkDisp = array();
1309     while ($i<$end && $i<count($keys)) {
1310         $link = $formatter->format($linksToDisplay[$keys[$i]]);
1311
1312         // Logged in, thumbnails enabled, not a note,
1313         // and (never retrieved yet or no valid cache file)
1314         if ($loginManager->isLoggedIn()
1315             && $thumbnailsEnabled
1316             && !$linksToDisplay[$keys[$i]]->isNote()
1317             && $linksToDisplay[$keys[$i]]->getThumbnail() !== false
1318             && ! is_file($linksToDisplay[$keys[$i]]->getThumbnail())
1319         ) {
1320             $linksToDisplay[$keys[$i]]->setThumbnail($thumbnailer->get($link['url']));
1321             $linkDb->set($linksToDisplay[$keys[$i]], false);
1322             $updateDB = true;
1323             $link['thumbnail'] = $linksToDisplay[$keys[$i]]->getThumbnail();
1324         }
1325
1326         // Check for both signs of a note: starting with ? and 7 chars long.
1327 //        if ($link['url'][0] === '?' && strlen($link['url']) === 7) {
1328 //            $link['url'] = index_url($_SERVER) . $link['url'];
1329 //        }
1330
1331         $linkDisp[$keys[$i]] = $link;
1332         $i++;
1333     }
1334
1335     // If we retrieved new thumbnails, we update the database.
1336     if (!empty($updateDB)) {
1337         $linkDb->save();
1338     }
1339
1340     // Compute paging navigation
1341     $searchtagsUrl = $searchtags === '' ? '' : '&searchtags=' . urlencode($searchtags);
1342     $searchtermUrl = empty($searchterm) ? '' : '&searchterm=' . urlencode($searchterm);
1343     $previous_page_url = '';
1344     if ($i != count($keys)) {
1345         $previous_page_url = '?page=' . ($page+1) . $searchtermUrl . $searchtagsUrl;
1346     }
1347     $next_page_url='';
1348     if ($page>1) {
1349         $next_page_url = '?page=' . ($page-1) . $searchtermUrl . $searchtagsUrl;
1350     }
1351
1352     // Fill all template fields.
1353     $data = array(
1354         'previous_page_url' => $previous_page_url,
1355         'next_page_url' => $next_page_url,
1356         'page_current' => $page,
1357         'page_max' => $pagecount,
1358         'result_count' => count($linksToDisplay),
1359         'search_term' => $searchterm,
1360         'search_tags' => $searchtags,
1361         'visibility' => ! empty($_SESSION['visibility']) ? $_SESSION['visibility'] : '',
1362         'links' => $linkDisp,
1363     );
1364
1365     // If there is only a single link, we change on-the-fly the title of the page.
1366     if (count($linksToDisplay) == 1) {
1367         $data['pagetitle'] = $linksToDisplay[$keys[0]]->getTitle() .' - '. $conf->get('general.title');
1368     } elseif (! empty($searchterm) || ! empty($searchtags)) {
1369         $data['pagetitle'] = t('Search: ');
1370         $data['pagetitle'] .= ! empty($searchterm) ? $searchterm .' ' : '';
1371         $bracketWrap = function ($tag) {
1372             return '['. $tag .']';
1373         };
1374         $data['pagetitle'] .= ! empty($searchtags)
1375             ? implode(' ', array_map($bracketWrap, preg_split('/\s+/', $searchtags))).' '
1376             : '';
1377         $data['pagetitle'] .= '- '. $conf->get('general.title');
1378     }
1379
1380     $pluginManager->executeHooks('render_linklist', $data, array('loggedin' => $loginManager->isLoggedIn()));
1381
1382     foreach ($data as $key => $value) {
1383         $PAGE->assign($key, $value);
1384     }
1385
1386     return;
1387 }
1388
1389 /**
1390  * Installation
1391  * This function should NEVER be called if the file data/config.php exists.
1392  *
1393  * @param ConfigManager  $conf           Configuration Manager instance.
1394  * @param SessionManager $sessionManager SessionManager instance
1395  * @param LoginManager   $loginManager   LoginManager instance
1396  */
1397 function install($conf, $sessionManager, $loginManager)
1398 {
1399     // On free.fr host, make sure the /sessions directory exists, otherwise login will not work.
1400     if (endsWith($_SERVER['HTTP_HOST'], '.free.fr') && !is_dir($_SERVER['DOCUMENT_ROOT'].'/sessions')) {
1401         mkdir($_SERVER['DOCUMENT_ROOT'].'/sessions', 0705);
1402     }
1403
1404
1405     // This part makes sure sessions works correctly.
1406     // (Because on some hosts, session.save_path may not be set correctly,
1407     // or we may not have write access to it.)
1408     if (isset($_GET['test_session'])
1409         && ( !isset($_SESSION) || !isset($_SESSION['session_tested']) || $_SESSION['session_tested']!='Working')) {
1410         // Step 2: Check if data in session is correct.
1411         $msg = t(
1412             '<pre>Sessions do not seem to work correctly on your server.<br>'.
1413             'Make sure the variable "session.save_path" is set correctly in your PHP config, '.
1414             'and that you have write access to it.<br>'.
1415             'It currently points to %s.<br>'.
1416             'On some browsers, accessing your server via a hostname like \'localhost\' '.
1417             'or any custom hostname without a dot causes cookie storage to fail. '.
1418             'We recommend accessing your server via it\'s IP address or Fully Qualified Domain Name.<br>'
1419         );
1420         $msg = sprintf($msg, session_save_path());
1421         echo $msg;
1422         echo '<br><a href="?">'. t('Click to try again.') .'</a></pre>';
1423         die;
1424     }
1425     if (!isset($_SESSION['session_tested'])) {
1426         // Step 1 : Try to store data in session and reload page.
1427         $_SESSION['session_tested'] = 'Working';  // Try to set a variable in session.
1428         header('Location: '.index_url($_SERVER).'?test_session');  // Redirect to check stored data.
1429     }
1430     if (isset($_GET['test_session'])) {
1431         // Step 3: Sessions are OK. Remove test parameter from URL.
1432         header('Location: '.index_url($_SERVER));
1433     }
1434
1435
1436     if (!empty($_POST['setlogin']) && !empty($_POST['setpassword'])) {
1437         $tz = 'UTC';
1438         if (!empty($_POST['continent']) && !empty($_POST['city'])
1439             && isTimeZoneValid($_POST['continent'], $_POST['city'])
1440         ) {
1441             $tz = $_POST['continent'].'/'.$_POST['city'];
1442         }
1443         $conf->set('general.timezone', $tz);
1444         $login = $_POST['setlogin'];
1445         $conf->set('credentials.login', $login);
1446         $salt = sha1(uniqid('', true) .'_'. mt_rand());
1447         $conf->set('credentials.salt', $salt);
1448         $conf->set('credentials.hash', sha1($_POST['setpassword'] . $login . $salt));
1449         if (!empty($_POST['title'])) {
1450             $conf->set('general.title', escape($_POST['title']));
1451         } else {
1452             $conf->set('general.title', 'Shared bookmarks on '.escape(index_url($_SERVER)));
1453         }
1454         $conf->set('translation.language', escape($_POST['language']));
1455         $conf->set('updates.check_updates', !empty($_POST['updateCheck']));
1456         $conf->set('api.enabled', !empty($_POST['enableApi']));
1457         $conf->set(
1458             'api.secret',
1459             generate_api_secret(
1460                 $conf->get('credentials.login'),
1461                 $conf->get('credentials.salt')
1462             )
1463         );
1464         try {
1465             // Everything is ok, let's create config file.
1466             $conf->write($loginManager->isLoggedIn());
1467         } catch (Exception $e) {
1468             error_log(
1469                 'ERROR while writing config file after installation.' . PHP_EOL .
1470                     $e->getMessage()
1471             );
1472
1473             // TODO: do not handle exceptions/errors in JS.
1474             echo '<script>alert("'. $e->getMessage() .'");document.location=\'?\';</script>';
1475             exit;
1476         }
1477
1478         $history = new History($conf->get('resource.history'));
1479         $bookmarkService = new BookmarkFileService($conf, $history, true);
1480         if ($bookmarkService->count() === 0) {
1481             $bookmarkService->initialize();
1482         }
1483
1484         echo '<script>alert('
1485             .'"Shaarli is now configured. '
1486             .'Please enter your login/password and start shaaring your bookmarks!"'
1487             .');document.location=\'./login\';</script>';
1488         exit;
1489     }
1490
1491     $PAGE = new PageBuilder($conf, $_SESSION, null, $sessionManager->generateToken());
1492     list($continents, $cities) = generateTimeZoneData(timezone_identifiers_list(), date_default_timezone_get());
1493     $PAGE->assign('continents', $continents);
1494     $PAGE->assign('cities', $cities);
1495     $PAGE->assign('languages', Languages::getAvailableLanguages());
1496     $PAGE->renderPage('install');
1497     exit;
1498 }
1499
1500 if (!isset($_SESSION['LINKS_PER_PAGE'])) {
1501     $_SESSION['LINKS_PER_PAGE'] = $conf->get('general.links_per_page', 20);
1502 }
1503
1504 try {
1505     $history = new History($conf->get('resource.history'));
1506 } catch (Exception $e) {
1507     die($e->getMessage());
1508 }
1509
1510 $linkDb = new BookmarkFileService($conf, $history, $loginManager->isLoggedIn());
1511
1512 if (isset($_SERVER['QUERY_STRING']) && startsWith($_SERVER['QUERY_STRING'], 'do=dailyrss')) {
1513     header('Location: ./daily-rss');
1514     exit;
1515 }
1516
1517 $containerBuilder = new ContainerBuilder($conf, $sessionManager, $loginManager, WEB_PATH);
1518 $container = $containerBuilder->build();
1519 $app = new App($container);
1520
1521 // REST API routes
1522 $app->group('/api/v1', function () {
1523     $this->get('/info', '\Shaarli\Api\Controllers\Info:getInfo')->setName('getInfo');
1524     $this->get('/links', '\Shaarli\Api\Controllers\Links:getLinks')->setName('getLinks');
1525     $this->get('/links/{id:[\d]+}', '\Shaarli\Api\Controllers\Links:getLink')->setName('getLink');
1526     $this->post('/links', '\Shaarli\Api\Controllers\Links:postLink')->setName('postLink');
1527     $this->put('/links/{id:[\d]+}', '\Shaarli\Api\Controllers\Links:putLink')->setName('putLink');
1528     $this->delete('/links/{id:[\d]+}', '\Shaarli\Api\Controllers\Links:deleteLink')->setName('deleteLink');
1529
1530     $this->get('/tags', '\Shaarli\Api\Controllers\Tags:getTags')->setName('getTags');
1531     $this->get('/tags/{tagName:[\w]+}', '\Shaarli\Api\Controllers\Tags:getTag')->setName('getTag');
1532     $this->put('/tags/{tagName:[\w]+}', '\Shaarli\Api\Controllers\Tags:putTag')->setName('putTag');
1533     $this->delete('/tags/{tagName:[\w]+}', '\Shaarli\Api\Controllers\Tags:deleteTag')->setName('deleteTag');
1534
1535     $this->get('/history', '\Shaarli\Api\Controllers\HistoryController:getHistory')->setName('getHistory');
1536 })->add('\Shaarli\Api\ApiMiddleware');
1537
1538 $app->group('', function () {
1539     $this->get('/login', '\Shaarli\Front\Controller\LoginController:index')->setName('login');
1540     $this->get('/logout', '\Shaarli\Front\Controller\LogoutController:index')->setName('logout');
1541     $this->get('/picture-wall', '\Shaarli\Front\Controller\PictureWallController:index')->setName('picwall');
1542     $this->get('/tag-cloud', '\Shaarli\Front\Controller\TagCloudController:cloud')->setName('tagcloud');
1543     $this->get('/tag-list', '\Shaarli\Front\Controller\TagCloudController:list')->setName('taglist');
1544     $this->get('/daily', '\Shaarli\Front\Controller\DailyController:index')->setName('daily');
1545     $this->get('/daily-rss', '\Shaarli\Front\Controller\DailyController:rss')->setName('dailyrss');
1546     $this->get('/feed-atom', '\Shaarli\Front\Controller\FeedController:atom')->setName('feedatom');
1547     $this->get('/feed-rss', '\Shaarli\Front\Controller\FeedController:rss')->setName('feedrss');
1548     $this->get('/open-search', '\Shaarli\Front\Controller\OpenSearchController:index')->setName('opensearch');
1549
1550     $this->get('/add-tag/{newTag}', '\Shaarli\Front\Controller\TagController:addTag')->setName('add-tag');
1551     $this->get('/remove-tag/{tag}', '\Shaarli\Front\Controller\TagController:removeTag')->setName('remove-tag');
1552 })->add('\Shaarli\Front\ShaarliMiddleware');
1553
1554 $response = $app->run(true);
1555
1556 // Hack to make Slim and Shaarli router work together:
1557 // If a Slim route isn't found and NOT API call, we call renderPage().
1558 if ($response->getStatusCode() == 404 && strpos($_SERVER['REQUEST_URI'], '/api/v1') === false) {
1559     // We use UTF-8 for proper international characters handling.
1560     header('Content-Type: text/html; charset=utf-8');
1561     renderPage($conf, $pluginManager, $linkDb, $history, $sessionManager, $loginManager);
1562 } else {
1563     $response = $response
1564         ->withHeader('Access-Control-Allow-Origin', '*')
1565         ->withHeader(
1566             'Access-Control-Allow-Headers',
1567             'X-Requested-With, Content-Type, Accept, Origin, Authorization'
1568         )
1569         ->withHeader('Access-Control-Allow-Methods', 'GET, POST, PUT, DELETE, OPTIONS');
1570     $app->respond($response);
1571 }