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