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  * Daily RSS feed: 1 RSS entry per day giving all the bookmarks on that day.
 305  * Gives the last 7 days (which have bookmarks).
 306  * This RSS feed cannot be filtered.
 307  *
 308  * @param BookmarkServiceInterface $bookmarkService
 309  * @param ConfigManager            $conf            Configuration Manager instance
 310  * @param LoginManager             $loginManager    LoginManager instance
 311  */
 312 function showDailyRSS($bookmarkService, $conf, $loginManager)
 313 {
 314     // Cache system
 315     $query = $_SERVER['QUERY_STRING'];
 316     $cache = new CachedPage(
 317         $conf->get('config.PAGE_CACHE'),
 318         page_url($_SERVER),
 319         startsWith($query, 'do=dailyrss') && !$loginManager->isLoggedIn()
 320     );
 321     $cached = $cache->cachedVersion();
 322     if (!empty($cached)) {
 323         echo $cached;
 324         exit;
 325     }
 326
 327     /* Some Shaarlies may have very few bookmarks, so we need to look
 328        back in time until we have enough days ($nb_of_days).
 329     */
 330     $nb_of_days = 7; // We take 7 days.
 331     $today = date('Ymd');
 332     $days = array();
 333
 334     foreach ($bookmarkService->search() as $bookmark) {
 335         $day = $bookmark->getCreated()->format('Ymd'); // Extract day (without time)
 336         if (strcmp($day, $today) < 0) {
 337             if (empty($days[$day])) {
 338                 $days[$day] = array();
 339             }
 340             $days[$day][] = $bookmark;
 341         }
 342
 343         if (count($days) > $nb_of_days) {
 344             break; // Have we collected enough days?
 345         }
 346     }
 347
 348     // Build the RSS feed.
 349     header('Content-Type: application/rss+xml; charset=utf-8');
 350     $pageaddr = escape(index_url($_SERVER));
 351     echo '<?xml version="1.0" encoding="UTF-8"?><rss version="2.0">';
 352     echo '<channel>';
 353     echo '<title>Daily - '. $conf->get('general.title') . '</title>';
 354     echo '<link>'. $pageaddr .'</link>';
 355     echo '<description>Daily shared bookmarks</description>';
 356     echo '<language>en-en</language>';
 357     echo '<copyright>'. $pageaddr .'</copyright>'. PHP_EOL;
 358
 359     $factory = new FormatterFactory($conf, $loginManager->isLoggedIn());
 360     $formatter = $factory->getFormatter();
 361     $formatter->addContextData('index_url', index_url($_SERVER));
 362     // For each day.
 363     /** @var Bookmark[] $bookmarks */
 364     foreach ($days as $day => $bookmarks) {
 365         $formattedBookmarks = [];
 366         $dayDate = DateTime::createFromFormat(Bookmark::LINK_DATE_FORMAT, $day.'_000000');
 367         $absurl = escape(index_url($_SERVER).'?do=daily&day='.$day);  // Absolute URL of the corresponding "Daily" page.
 368
 369         // We pre-format some fields for proper output.
 370         foreach ($bookmarks as $key => $bookmark) {
 371             $formattedBookmarks[$key] = $formatter->format($bookmark);
 372             // This page is a bit specific, we need raw description to calculate the length
 373             $formattedBookmarks[$key]['formatedDescription'] = $formattedBookmarks[$key]['description'];
 374             $formattedBookmarks[$key]['description'] = $bookmark->getDescription();
 375
 376             if ($bookmark->isNote()) {
 377                 $link['url'] = index_url($_SERVER) . $bookmark->getUrl();  // make permalink URL absolute
 378             }
 379         }
 380
 381         // Then build the HTML for this day:
 382         $tpl = new RainTPL();
 383         $tpl->assign('title', $conf->get('general.title'));
 384         $tpl->assign('daydate', $dayDate->getTimestamp());
 385         $tpl->assign('absurl', $absurl);
 386         $tpl->assign('links', $formattedBookmarks);
 387         $tpl->assign('rssdate', escape($dayDate->format(DateTime::RSS)));
 388         $tpl->assign('hide_timestamps', $conf->get('privacy.hide_timestamps', false));
 389         $tpl->assign('index_url', $pageaddr);
 390         $html = $tpl->draw('dailyrss', true);
 391
 392         echo $html . PHP_EOL;
 393     }
 394     echo '</channel></rss><!-- Cached version of '. escape(page_url($_SERVER)) .' -->';
 395
 396     $cache->cache(ob_get_contents());
 397     ob_end_flush();
 398     exit;
 399 }
 400
 401 /**
 402  * Show the 'Daily' page.
 403  *
 404  * @param PageBuilder              $pageBuilder     Template engine wrapper.
 405  * @param BookmarkServiceInterface $bookmarkService instance.
 406  * @param ConfigManager            $conf            Configuration Manager instance.
 407  * @param PluginManager            $pluginManager   Plugin Manager instance.
 408  * @param LoginManager             $loginManager    Login Manager instance
 409  */
 410 function showDaily($pageBuilder, $bookmarkService, $conf, $pluginManager, $loginManager)
 411 {
 412     if (isset($_GET['day'])) {
 413         $day = $_GET['day'];
 414         if ($day === date('Ymd', strtotime('now'))) {
 415             $pageBuilder->assign('dayDesc', t('Today'));
 416         } elseif ($day === date('Ymd', strtotime('-1 days'))) {
 417             $pageBuilder->assign('dayDesc', t('Yesterday'));
 418         }
 419     } else {
 420         $day = date('Ymd', strtotime('now')); // Today, in format YYYYMMDD.
 421         $pageBuilder->assign('dayDesc', t('Today'));
 422     }
 423
 424     $days = $bookmarkService->days();
 425     $i = array_search($day, $days);
 426     if ($i === false && count($days)) {
 427         // no bookmarks for day, but at least one day with bookmarks
 428         $i = count($days) - 1;
 429         $day = $days[$i];
 430     }
 431     $previousday = '';
 432     $nextday = '';
 433
 434     if ($i !== false) {
 435         if ($i >= 1) {
 436              $previousday = $days[$i - 1];
 437         }
 438         if ($i < count($days) - 1) {
 439             $nextday = $days[$i + 1];
 440         }
 441     }
 442     try {
 443         $linksToDisplay = $bookmarkService->filterDay($day);
 444     } catch (Exception $exc) {
 445         error_log($exc);
 446         $linksToDisplay = [];
 447     }
 448
 449     $factory = new FormatterFactory($conf, $loginManager->isLoggedIn());
 450     $formatter = $factory->getFormatter();
 451     // We pre-format some fields for proper output.
 452     foreach ($linksToDisplay as $key => $bookmark) {
 453         $linksToDisplay[$key] = $formatter->format($bookmark);
 454         // This page is a bit specific, we need raw description to calculate the length
 455         $linksToDisplay[$key]['formatedDescription'] = $linksToDisplay[$key]['description'];
 456         $linksToDisplay[$key]['description'] = $bookmark->getDescription();
 457     }
 458
 459     $dayDate = DateTime::createFromFormat(Bookmark::LINK_DATE_FORMAT, $day.'_000000');
 460     $data = array(
 461         'pagetitle' => $conf->get('general.title') .' - '. format_date($dayDate, false),
 462         'linksToDisplay' => $linksToDisplay,
 463         'day' => $dayDate->getTimestamp(),
 464         'dayDate' => $dayDate,
 465         'previousday' => $previousday,
 466         'nextday' => $nextday,
 467     );
 468
 469     /* Hook is called before column construction so that plugins don't have
 470        to deal with columns. */
 471     $pluginManager->executeHooks('render_daily', $data, array('loggedin' => $loginManager->isLoggedIn()));
 472
 473     /* We need to spread the articles on 3 columns.
 474        I did not want to use a JavaScript lib like http://masonry.desandro.com/
 475        so I manually spread entries with a simple method: I roughly evaluate the
 476        height of a div according to title and description length.
 477     */
 478     $columns = array(array(), array(), array()); // Entries to display, for each column.
 479     $fill = array(0, 0, 0);  // Rough estimate of columns fill.
 480     foreach ($data['linksToDisplay'] as $key => $bookmark) {
 481         // Roughly estimate length of entry (by counting characters)
 482         // Title: 30 chars = 1 line. 1 line is 30 pixels height.
 483         // Description: 836 characters gives roughly 342 pixel height.
 484         // This is not perfect, but it's usually OK.
 485         $length = strlen($bookmark['title']) + (342 * strlen($bookmark['description'])) / 836;
 486         if (! empty($bookmark['thumbnail'])) {
 487             $length += 100; // 1 thumbnails roughly takes 100 pixels height.
 488         }
 489         // Then put in column which is the less filled:
 490         $smallest = min($fill); // find smallest value in array.
 491         $index = array_search($smallest, $fill); // find index of this smallest value.
 492         array_push($columns[$index], $bookmark); // Put entry in this column.
 493         $fill[$index] += $length;
 494     }
 495
 496     $data['cols'] = $columns;
 497
 498     foreach ($data as $key => $value) {
 499         $pageBuilder->assign($key, $value);
 500     }
 501
 502     $pageBuilder->assign('pagetitle', t('Daily') .' - '. $conf->get('general.title', 'Shaarli'));
 503     $pageBuilder->renderPage('daily');
 504     exit;
 505 }
 506
 507 /**
 508  * Renders the linklist
 509  *
 510  * @param pageBuilder              $PAGE          pageBuilder instance.
 511  * @param BookmarkServiceInterface $linkDb        instance.
 512  * @param ConfigManager            $conf          Configuration Manager instance.
 513  * @param PluginManager            $pluginManager Plugin Manager instance.
 514  */
 515 function showLinkList($PAGE, $linkDb, $conf, $pluginManager, $loginManager)
 516 {
 517     buildLinkList($PAGE, $linkDb, $conf, $pluginManager, $loginManager);
 518     $PAGE->renderPage('linklist');
 519 }
 520
 521 /**
 522  * Render HTML page (according to URL parameters and user rights)
 523  *
 524  * @param ConfigManager            $conf           Configuration Manager instance.
 525  * @param PluginManager            $pluginManager  Plugin Manager instance,
 526  * @param BookmarkServiceInterface $bookmarkService
 527  * @param History                  $history        instance
 528  * @param SessionManager           $sessionManager SessionManager instance
 529  * @param LoginManager             $loginManager   LoginManager instance
 530  */
 531 function renderPage($conf, $pluginManager, $bookmarkService, $history, $sessionManager, $loginManager)
 532 {
 533     $pageCacheManager = new PageCacheManager($conf->get('resource.page_cache'));
 534     $updater = new Updater(
 535         UpdaterUtils::read_updates_file($conf->get('resource.updates')),
 536         $bookmarkService,
 537         $conf,
 538         $loginManager->isLoggedIn()
 539     );
 540     try {
 541         $newUpdates = $updater->update();
 542         if (! empty($newUpdates)) {
 543             UpdaterUtils::write_updates_file(
 544                 $conf->get('resource.updates'),
 545                 $updater->getDoneUpdates()
 546             );
 547
 548             $pageCacheManager->invalidateCaches();
 549         }
 550     } catch (Exception $e) {
 551         die($e->getMessage());
 552     }
 553
 554     $PAGE = new PageBuilder($conf, $_SESSION, $bookmarkService, $sessionManager->generateToken(), $loginManager->isLoggedIn());
 555     $PAGE->assign('linkcount', $bookmarkService->count(BookmarkFilter::$ALL));
 556     $PAGE->assign('privateLinkcount', $bookmarkService->count(BookmarkFilter::$PRIVATE));
 557     $PAGE->assign('plugin_errors', $pluginManager->getErrors());
 558
 559     // Determine which page will be rendered.
 560     $query = (isset($_SERVER['QUERY_STRING'])) ? $_SERVER['QUERY_STRING'] : '';
 561     $targetPage = Router::findPage($query, $_GET, $loginManager->isLoggedIn());
 562
 563     if (// if the user isn't logged in
 564         !$loginManager->isLoggedIn() &&
 565         // and Shaarli doesn't have public content...
 566         $conf->get('privacy.hide_public_links') &&
 567         // and is configured to enforce the login
 568         $conf->get('privacy.force_login') &&
 569         // and the current page isn't already the login page
 570         $targetPage !== Router::$PAGE_LOGIN &&
 571         // and the user is not requesting a feed (which would lead to a different content-type as expected)
 572         $targetPage !== Router::$PAGE_FEED_ATOM &&
 573         $targetPage !== Router::$PAGE_FEED_RSS
 574     ) {
 575         // force current page to be the login page
 576         $targetPage = Router::$PAGE_LOGIN;
 577     }
 578
 579     // Call plugin hooks for header, footer and includes, specifying which page will be rendered.
 580     // Then assign generated data to RainTPL.
 581     $common_hooks = array(
 582         'includes',
 583         'header',
 584         'footer',
 585     );
 586
 587     foreach ($common_hooks as $name) {
 588         $plugin_data = array();
 589         $pluginManager->executeHooks(
 590             'render_' . $name,
 591             $plugin_data,
 592             array(
 593                 'target' => $targetPage,
 594                 'loggedin' => $loginManager->isLoggedIn()
 595             )
 596         );
 597         $PAGE->assign('plugins_' . $name, $plugin_data);
 598     }
 599
 600     // -------- Display login form.
 601     if ($targetPage == Router::$PAGE_LOGIN) {
 602         header('Location: ./login');
 603         exit;
 604     }
 605     // -------- User wants to logout.
 606     if (isset($_SERVER['QUERY_STRING']) && startsWith($_SERVER['QUERY_STRING'], 'do=logout')) {
 607         header('Location: ./logout');
 608         exit;
 609     }
 610
 611     // -------- Picture wall
 612     if ($targetPage == Router::$PAGE_PICWALL) {
 613         header('Location: ./picture-wall');
 614         exit;
 615     }
 616
 617     // -------- Tag cloud
 618     if ($targetPage == Router::$PAGE_TAGCLOUD) {
 619         $visibility = ! empty($_SESSION['visibility']) ? $_SESSION['visibility'] : '';
 620         $filteringTags = isset($_GET['searchtags']) ? explode(' ', $_GET['searchtags']) : [];
 621         $tags = $bookmarkService->bookmarksCountPerTag($filteringTags, $visibility);
 622
 623         // We sort tags alphabetically, then choose a font size according to count.
 624         // First, find max value.
 625         $maxcount = 0;
 626         foreach ($tags as $value) {
 627             $maxcount = max($maxcount, $value);
 628         }
 629
 630         alphabetical_sort($tags, false, true);
 631
 632         $logMaxCount = $maxcount > 1 ? log($maxcount, 30) : 1;
 633         $tagList = array();
 634         foreach ($tags as $key => $value) {
 635             if (in_array($key, $filteringTags)) {
 636                 continue;
 637             }
 638             // Tag font size scaling:
 639             //   default 15 and 30 logarithm bases affect scaling,
 640             //   2.2 and 0.8 are arbitrary font sizes in em.
 641             $size = log($value, 15) / $logMaxCount * 2.2 + 0.8;
 642             $tagList[$key] = array(
 643                 'count' => $value,
 644                 'size' => number_format($size, 2, '.', ''),
 645             );
 646         }
 647
 648         $searchTags = implode(' ', escape($filteringTags));
 649         $data = array(
 650             'search_tags' => $searchTags,
 651             'tags' => $tagList,
 652         );
 653         $pluginManager->executeHooks('render_tagcloud', $data, array('loggedin' => $loginManager->isLoggedIn()));
 654
 655         foreach ($data as $key => $value) {
 656             $PAGE->assign($key, $value);
 657         }
 658
 659         $searchTags = ! empty($searchTags) ? $searchTags .' - ' : '';
 660         $PAGE->assign('pagetitle', $searchTags. t('Tag cloud') .' - '. $conf->get('general.title', 'Shaarli'));
 661         $PAGE->renderPage('tag.cloud');
 662         exit;
 663     }
 664
 665     // -------- Tag list
 666     if ($targetPage == Router::$PAGE_TAGLIST) {
 667         $visibility = ! empty($_SESSION['visibility']) ? $_SESSION['visibility'] : '';
 668         $filteringTags = isset($_GET['searchtags']) ? explode(' ', $_GET['searchtags']) : [];
 669         $tags = $bookmarkService->bookmarksCountPerTag($filteringTags, $visibility);
 670         foreach ($filteringTags as $tag) {
 671             if (array_key_exists($tag, $tags)) {
 672                 unset($tags[$tag]);
 673             }
 674         }
 675
 676         if (! empty($_GET['sort']) && $_GET['sort'] === 'alpha') {
 677             alphabetical_sort($tags, false, true);
 678         }
 679
 680         $searchTags = implode(' ', escape($filteringTags));
 681         $data = [
 682             'search_tags' => $searchTags,
 683             'tags' => $tags,
 684         ];
 685         $pluginManager->executeHooks('render_taglist', $data, ['loggedin' => $loginManager->isLoggedIn()]);
 686
 687         foreach ($data as $key => $value) {
 688             $PAGE->assign($key, $value);
 689         }
 690
 691         $searchTags = ! empty($searchTags) ? $searchTags .' - ' : '';
 692         $PAGE->assign('pagetitle', $searchTags . t('Tag list') .' - '. $conf->get('general.title', 'Shaarli'));
 693         $PAGE->renderPage('tag.list');
 694         exit;
 695     }
 696
 697     // Daily page.
 698     if ($targetPage == Router::$PAGE_DAILY) {
 699         showDaily($PAGE, $bookmarkService, $conf, $pluginManager, $loginManager);
 700     }
 701
 702     // ATOM and RSS feed.
 703     if ($targetPage == Router::$PAGE_FEED_ATOM || $targetPage == Router::$PAGE_FEED_RSS) {
 704         $feedType = $targetPage == Router::$PAGE_FEED_RSS ? FeedBuilder::$FEED_RSS : FeedBuilder::$FEED_ATOM;
 705         header('Content-Type: application/'. $feedType .'+xml; charset=utf-8');
 706
 707         // Cache system
 708         $query = $_SERVER['QUERY_STRING'];
 709         $cache = new CachedPage(
 710             $conf->get('resource.page_cache'),
 711             page_url($_SERVER),
 712             startsWith($query, 'do='. $targetPage) && !$loginManager->isLoggedIn()
 713         );
 714         $cached = $cache->cachedVersion();
 715         if (!empty($cached)) {
 716             echo $cached;
 717             exit;
 718         }
 719
 720         $factory = new FormatterFactory($conf, $loginManager->isLoggedIn());
 721         // Generate data.
 722         $feedGenerator = new FeedBuilder(
 723             $bookmarkService,
 724             $factory->getFormatter(),
 725             $feedType,
 726             $_SERVER,
 727             $_GET,
 728             $loginManager->isLoggedIn()
 729         );
 730         $feedGenerator->setLocale(strtolower(setlocale(LC_COLLATE, 0)));
 731         $feedGenerator->setHideDates($conf->get('privacy.hide_timestamps') && !$loginManager->isLoggedIn());
 732         $feedGenerator->setUsePermalinks(isset($_GET['permalinks']) || !$conf->get('feed.rss_permalinks'));
 733         $data = $feedGenerator->buildData();
 734
 735         // Process plugin hook.
 736         $pluginManager->executeHooks('render_feed', $data, array(
 737             'loggedin' => $loginManager->isLoggedIn(),
 738             'target' => $targetPage,
 739         ));
 740
 741         // Render the template.
 742         $PAGE->assignAll($data);
 743         $PAGE->renderPage('feed.'. $feedType);
 744         $cache->cache(ob_get_contents());
 745         ob_end_flush();
 746         exit;
 747     }
 748
 749     // Display opensearch plugin (XML)
 750     if ($targetPage == Router::$PAGE_OPENSEARCH) {
 751         header('Content-Type: application/xml; charset=utf-8');
 752         $PAGE->assign('serverurl', index_url($_SERVER));
 753         $PAGE->renderPage('opensearch');
 754         exit;
 755     }
 756
 757     // -------- User clicks on a tag in a link: The tag is added to the list of searched tags (searchtags=...)
 758     if (isset($_GET['addtag'])) {
 759         // Get previous URL (http_referer) and add the tag to the searchtags parameters in query.
 760         if (empty($_SERVER['HTTP_REFERER'])) {
 761             // In case browser does not send HTTP_REFERER
 762             header('Location: ?searchtags='.urlencode($_GET['addtag']));
 763             exit;
 764         }
 765         parse_str(parse_url($_SERVER['HTTP_REFERER'], PHP_URL_QUERY), $params);
 766
 767         // Prevent redirection loop
 768         if (isset($params['addtag'])) {
 769             unset($params['addtag']);
 770         }
 771
 772         // Check if this tag is already in the search query and ignore it if it is.
 773         // Each tag is always separated by a space
 774         if (isset($params['searchtags'])) {
 775             $current_tags = explode(' ', $params['searchtags']);
 776         } else {
 777             $current_tags = array();
 778         }
 779         $addtag = true;
 780         foreach ($current_tags as $value) {
 781             if ($value === $_GET['addtag']) {
 782                 $addtag = false;
 783                 break;
 784             }
 785         }
 786         // Append the tag if necessary
 787         if (empty($params['searchtags'])) {
 788             $params['searchtags'] = trim($_GET['addtag']);
 789         } elseif ($addtag) {
 790             $params['searchtags'] = trim($params['searchtags']).' '.trim($_GET['addtag']);
 791         }
 792
 793         // We also remove page (keeping the same page has no sense, since the
 794         // results are different)
 795         unset($params['page']);
 796
 797         header('Location: ?'.http_build_query($params));
 798         exit;
 799     }
 800
 801     // -------- User clicks on a tag in result count: Remove the tag from the list of searched tags (searchtags=...)
 802     if (isset($_GET['removetag'])) {
 803         // Get previous URL (http_referer) and remove the tag from the searchtags parameters in query.
 804         if (empty($_SERVER['HTTP_REFERER'])) {
 805             header('Location: ?');
 806             exit;
 807         }
 808
 809         // In case browser does not send HTTP_REFERER
 810         parse_str(parse_url($_SERVER['HTTP_REFERER'], PHP_URL_QUERY), $params);
 811
 812         // Prevent redirection loop
 813         if (isset($params['removetag'])) {
 814             unset($params['removetag']);
 815         }
 816
 817         if (isset($params['searchtags'])) {
 818             $tags = explode(' ', $params['searchtags']);
 819             // Remove value from array $tags.
 820             $tags = array_diff($tags, array($_GET['removetag']));
 821             $params['searchtags'] = implode(' ', $tags);
 822
 823             if (empty($params['searchtags'])) {
 824                 unset($params['searchtags']);
 825             }
 826
 827             // We also remove page (keeping the same page has no sense, since
 828             // the results are different)
 829             unset($params['page']);
 830         }
 831         header('Location: ?'.http_build_query($params));
 832         exit;
 833     }
 834
 835     // -------- User wants to change the number of bookmarks per page (linksperpage=...)
 836     if (isset($_GET['linksperpage'])) {
 837         if (is_numeric($_GET['linksperpage'])) {
 838             $_SESSION['LINKS_PER_PAGE']=abs(intval($_GET['linksperpage']));
 839         }
 840
 841         if (! empty($_SERVER['HTTP_REFERER'])) {
 842             $location = generateLocation($_SERVER['HTTP_REFERER'], $_SERVER['HTTP_HOST'], array('linksperpage'));
 843         } else {
 844             $location = '?';
 845         }
 846         header('Location: '. $location);
 847         exit;
 848     }
 849
 850     // -------- User wants to see only private bookmarks (toggle)
 851     if (isset($_GET['visibility'])) {
 852         if ($_GET['visibility'] === 'private') {
 853             // Visibility not set or not already private, set private, otherwise reset it
 854             if (empty($_SESSION['visibility']) || $_SESSION['visibility'] !== 'private') {
 855                 // See only private bookmarks
 856                 $_SESSION['visibility'] = 'private';
 857             } else {
 858                 unset($_SESSION['visibility']);
 859             }
 860         } elseif ($_GET['visibility'] === 'public') {
 861             if (empty($_SESSION['visibility']) || $_SESSION['visibility'] !== 'public') {
 862                 // See only public bookmarks
 863                 $_SESSION['visibility'] = 'public';
 864             } else {
 865                 unset($_SESSION['visibility']);
 866             }
 867         }
 868
 869         if (! empty($_SERVER['HTTP_REFERER'])) {
 870             $location = generateLocation($_SERVER['HTTP_REFERER'], $_SERVER['HTTP_HOST'], array('visibility'));
 871         } else {
 872             $location = '?';
 873         }
 874         header('Location: '. $location);
 875         exit;
 876     }
 877
 878     // -------- User wants to see only untagged bookmarks (toggle)
 879     if (isset($_GET['untaggedonly'])) {
 880         $_SESSION['untaggedonly'] = empty($_SESSION['untaggedonly']);
 881
 882         if (! empty($_SERVER['HTTP_REFERER'])) {
 883             $location = generateLocation($_SERVER['HTTP_REFERER'], $_SERVER['HTTP_HOST'], array('untaggedonly'));
 884         } else {
 885             $location = '?';
 886         }
 887         header('Location: '. $location);
 888         exit;
 889     }
 890
 891     // -------- Handle other actions allowed for non-logged in users:
 892     if (!$loginManager->isLoggedIn()) {
 893         // User tries to post new link but is not logged in:
 894         // Show login screen, then redirect to ?post=...
 895         if (isset($_GET['post'])) {
 896             header( // Redirect to login page, then back to post link.
 897                 'Location: /login?post='.urlencode($_GET['post']).
 898                 (!empty($_GET['title'])?'&title='.urlencode($_GET['title']):'').
 899                 (!empty($_GET['description'])?'&description='.urlencode($_GET['description']):'').
 900                 (!empty($_GET['tags'])?'&tags='.urlencode($_GET['tags']):'').
 901                 (!empty($_GET['source'])?'&source='.urlencode($_GET['source']):'')
 902             );
 903             exit;
 904         }
 905
 906         showLinkList($PAGE, $bookmarkService, $conf, $pluginManager, $loginManager);
 907         if (isset($_GET['edit_link'])) {
 908             header('Location: /login?edit_link='. escape($_GET['edit_link']));
 909             exit;
 910         }
 911
 912         exit; // Never remove this one! All operations below are reserved for logged in user.
 913     }
 914
 915     // -------- All other functions are reserved for the registered user:
 916
 917     // -------- Display the Tools menu if requested (import/export/bookmarklet...)
 918     if ($targetPage == Router::$PAGE_TOOLS) {
 919         $data = [
 920             'pageabsaddr' => index_url($_SERVER),
 921             'sslenabled' => is_https($_SERVER),
 922         ];
 923         $pluginManager->executeHooks('render_tools', $data);
 924
 925         foreach ($data as $key => $value) {
 926             $PAGE->assign($key, $value);
 927         }
 928
 929         $PAGE->assign('pagetitle', t('Tools') .' - '. $conf->get('general.title', 'Shaarli'));
 930         $PAGE->renderPage('tools');
 931         exit;
 932     }
 933
 934     // -------- User wants to change his/her password.
 935     if ($targetPage == Router::$PAGE_CHANGEPASSWORD) {
 936         if ($conf->get('security.open_shaarli')) {
 937             die(t('You are not supposed to change a password on an Open Shaarli.'));
 938         }
 939
 940         if (!empty($_POST['setpassword']) && !empty($_POST['oldpassword'])) {
 941             if (!$sessionManager->checkToken($_POST['token'])) {
 942                 die(t('Wrong token.')); // Go away!
 943             }
 944
 945             // Make sure old password is correct.
 946             $oldhash = sha1(
 947                 $_POST['oldpassword'].$conf->get('credentials.login').$conf->get('credentials.salt')
 948             );
 949             if ($oldhash != $conf->get('credentials.hash')) {
 950                 echo '<script>alert("'
 951                     . t('The old password is not correct.')
 952                     .'");document.location=\'./?do=changepasswd\';</script>';
 953                 exit;
 954             }
 955             // Save new password
 956             // Salt renders rainbow-tables attacks useless.
 957             $conf->set('credentials.salt', sha1(uniqid('', true) .'_'. mt_rand()));
 958             $conf->set(
 959                 'credentials.hash',
 960                 sha1(
 961                     $_POST['setpassword']
 962                     . $conf->get('credentials.login')
 963                     . $conf->get('credentials.salt')
 964                 )
 965             );
 966             try {
 967                 $conf->write($loginManager->isLoggedIn());
 968             } catch (Exception $e) {
 969                 error_log(
 970                     'ERROR while writing config file after changing password.' . PHP_EOL .
 971                     $e->getMessage()
 972                 );
 973
 974                 // TODO: do not handle exceptions/errors in JS.
 975                 echo '<script>alert("'. $e->getMessage() .'");document.location=\'./?do=tools\';</script>';
 976                 exit;
 977             }
 978             echo '<script>alert("'. t('Your password has been changed') .'");document.location=\'./?do=tools\';</script>';
 979             exit;
 980         } else {
 981             // show the change password form.
 982             $PAGE->assign('pagetitle', t('Change password') .' - '. $conf->get('general.title', 'Shaarli'));
 983             $PAGE->renderPage('changepassword');
 984             exit;
 985         }
 986     }
 987
 988     // -------- User wants to change configuration
 989     if ($targetPage == Router::$PAGE_CONFIGURE) {
 990         if (!empty($_POST['title'])) {
 991             if (!$sessionManager->checkToken($_POST['token'])) {
 992                 die(t('Wrong token.')); // Go away!
 993             }
 994             $tz = 'UTC';
 995             if (!empty($_POST['continent']) && !empty($_POST['city'])
 996                 && isTimeZoneValid($_POST['continent'], $_POST['city'])
 997             ) {
 998                 $tz = $_POST['continent'] . '/' . $_POST['city'];
 999             }
1000             $conf->set('general.timezone', $tz);
1001             $conf->set('general.title', escape($_POST['title']));
1002             $conf->set('general.header_link', escape($_POST['titleLink']));
1003             $conf->set('general.retrieve_description', !empty($_POST['retrieveDescription']));
1004             $conf->set('resource.theme', escape($_POST['theme']));
1005             $conf->set('security.session_protection_disabled', !empty($_POST['disablesessionprotection']));
1006             $conf->set('privacy.default_private_links', !empty($_POST['privateLinkByDefault']));
1007             $conf->set('feed.rss_permalinks', !empty($_POST['enableRssPermalinks']));
1008             $conf->set('updates.check_updates', !empty($_POST['updateCheck']));
1009             $conf->set('privacy.hide_public_links', !empty($_POST['hidePublicLinks']));
1010             $conf->set('api.enabled', !empty($_POST['enableApi']));
1011             $conf->set('api.secret', escape($_POST['apiSecret']));
1012             $conf->set('formatter', escape($_POST['formatter']));
1013
1014             if (! empty($_POST['language'])) {
1015                 $conf->set('translation.language', escape($_POST['language']));
1016             }
1017
1018             $thumbnailsMode = extension_loaded('gd') ? $_POST['enableThumbnails'] : Thumbnailer::MODE_NONE;
1019             if ($thumbnailsMode !== Thumbnailer::MODE_NONE
1020                 && $thumbnailsMode !== $conf->get('thumbnails.mode', Thumbnailer::MODE_NONE)
1021             ) {
1022                 $_SESSION['warnings'][] = t(
1023                     'You have enabled or changed thumbnails mode. '
1024                     .'<a href="./?do=thumbs_update">Please synchronize them</a>.'
1025                 );
1026             }
1027             $conf->set('thumbnails.mode', $thumbnailsMode);
1028
1029             try {
1030                 $conf->write($loginManager->isLoggedIn());
1031                 $history->updateSettings();
1032                 $pageCacheManager->invalidateCaches();
1033             } catch (Exception $e) {
1034                 error_log(
1035                     'ERROR while writing config file after configuration update.' . PHP_EOL .
1036                     $e->getMessage()
1037                 );
1038
1039                 // TODO: do not handle exceptions/errors in JS.
1040                 echo '<script>alert("'. $e->getMessage() .'");document.location=\'./?do=configure\';</script>';
1041                 exit;
1042             }
1043             echo '<script>alert("'. t('Configuration was saved.') .'");document.location=\'./?do=configure\';</script>';
1044             exit;
1045         } else {
1046             // Show the configuration form.
1047             $PAGE->assign('title', $conf->get('general.title'));
1048             $PAGE->assign('theme', $conf->get('resource.theme'));
1049             $PAGE->assign('theme_available', ThemeUtils::getThemes($conf->get('resource.raintpl_tpl')));
1050             $PAGE->assign('formatter_available', ['default', 'markdown']);
1051             list($continents, $cities) = generateTimeZoneData(
1052                 timezone_identifiers_list(),
1053                 $conf->get('general.timezone')
1054             );
1055             $PAGE->assign('continents', $continents);
1056             $PAGE->assign('cities', $cities);
1057             $PAGE->assign('retrieve_description', $conf->get('general.retrieve_description'));
1058             $PAGE->assign('private_links_default', $conf->get('privacy.default_private_links', false));
1059             $PAGE->assign('session_protection_disabled', $conf->get('security.session_protection_disabled', false));
1060             $PAGE->assign('enable_rss_permalinks', $conf->get('feed.rss_permalinks', false));
1061             $PAGE->assign('enable_update_check', $conf->get('updates.check_updates', true));
1062             $PAGE->assign('hide_public_links', $conf->get('privacy.hide_public_links', false));
1063             $PAGE->assign('api_enabled', $conf->get('api.enabled', true));
1064             $PAGE->assign('api_secret', $conf->get('api.secret'));
1065             $PAGE->assign('languages', Languages::getAvailableLanguages());
1066             $PAGE->assign('gd_enabled', extension_loaded('gd'));
1067             $PAGE->assign('thumbnails_mode', $conf->get('thumbnails.mode', Thumbnailer::MODE_NONE));
1068             $PAGE->assign('pagetitle', t('Configure') .' - '. $conf->get('general.title', 'Shaarli'));
1069             $PAGE->renderPage('configure');
1070             exit;
1071         }
1072     }
1073
1074     // -------- User wants to rename a tag or delete it
1075     if ($targetPage == Router::$PAGE_CHANGETAG) {
1076         if (empty($_POST['fromtag']) || (empty($_POST['totag']) && isset($_POST['renametag']))) {
1077             $PAGE->assign('fromtag', ! empty($_GET['fromtag']) ? escape($_GET['fromtag']) : '');
1078             $PAGE->assign('pagetitle', t('Manage tags') .' - '. $conf->get('general.title', 'Shaarli'));
1079             $PAGE->renderPage('changetag');
1080             exit;
1081         }
1082
1083         if (!$sessionManager->checkToken($_POST['token'])) {
1084             die(t('Wrong token.'));
1085         }
1086
1087         $toTag = isset($_POST['totag']) ? escape($_POST['totag']) : null;
1088         $fromTag = escape($_POST['fromtag']);
1089         $count = 0;
1090         $bookmarks = $bookmarkService->search(['searchtags' => $fromTag], BookmarkFilter::$ALL, true);
1091         foreach ($bookmarks as $bookmark) {
1092             if ($toTag) {
1093                 $bookmark->renameTag($fromTag, $toTag);
1094             } else {
1095                 $bookmark->deleteTag($fromTag);
1096             }
1097             $bookmarkService->set($bookmark, false);
1098             $history->updateLink($bookmark);
1099             $count++;
1100         }
1101         $bookmarkService->save();
1102         $delete = empty($_POST['totag']);
1103         $redirect = $delete ? './do=changetag' : 'searchtags='. urlencode(escape($_POST['totag']));
1104         $alert = $delete
1105             ? sprintf(t('The tag was removed from %d link.', 'The tag was removed from %d bookmarks.', $count), $count)
1106             : sprintf(t('The tag was renamed in %d link.', 'The tag was renamed in %d bookmarks.', $count), $count);
1107         echo '<script>alert("'. $alert .'");document.location=\'?'. $redirect .'\';</script>';
1108         exit;
1109     }
1110
1111     // -------- User wants to add a link without using the bookmarklet: Show form.
1112     if ($targetPage == Router::$PAGE_ADDLINK) {
1113         $PAGE->assign('pagetitle', t('Shaare a new link') .' - '. $conf->get('general.title', 'Shaarli'));
1114         $PAGE->renderPage('addlink');
1115         exit;
1116     }
1117
1118     // -------- User clicked the "Save" button when editing a link: Save link to database.
1119     if (isset($_POST['save_edit'])) {
1120         // Go away!
1121         if (! $sessionManager->checkToken($_POST['token'])) {
1122             die(t('Wrong token.'));
1123         }
1124
1125         // lf_id should only be present if the link exists.
1126         $id = isset($_POST['lf_id']) ? intval(escape($_POST['lf_id'])) : null;
1127         if ($id && $bookmarkService->exists($id)) {
1128             // Edit
1129             $bookmark = $bookmarkService->get($id);
1130         } else {
1131             // New link
1132             $bookmark = new Bookmark();
1133         }
1134
1135         $bookmark->setTitle($_POST['lf_title']);
1136         $bookmark->setDescription($_POST['lf_description']);
1137         $bookmark->setUrl($_POST['lf_url'], $conf->get('security.allowed_protocols'));
1138         $bookmark->setPrivate(isset($_POST['lf_private']));
1139         $bookmark->setTagsString($_POST['lf_tags']);
1140
1141         if ($conf->get('thumbnails.mode', Thumbnailer::MODE_NONE) !== Thumbnailer::MODE_NONE
1142             && ! $bookmark->isNote()
1143         ) {
1144             $thumbnailer = new Thumbnailer($conf);
1145             $bookmark->setThumbnail($thumbnailer->get($bookmark->getUrl()));
1146         }
1147         $bookmarkService->addOrSet($bookmark, false);
1148
1149         // To preserve backward compatibility with 3rd parties, plugins still use arrays
1150         $factory = new FormatterFactory($conf, $loginManager->isLoggedIn());
1151         $formatter = $factory->getFormatter('raw');
1152         $data = $formatter->format($bookmark);
1153         $pluginManager->executeHooks('save_link', $data);
1154
1155         $bookmark->fromArray($data);
1156         $bookmarkService->set($bookmark);
1157
1158         // If we are called from the bookmarklet, we must close the popup:
1159         if (isset($_GET['source']) && ($_GET['source']=='bookmarklet' || $_GET['source']=='firefoxsocialapi')) {
1160             echo '<script>self.close();</script>';
1161             exit;
1162         }
1163
1164         $returnurl = !empty($_POST['returnurl']) ? $_POST['returnurl'] : '?';
1165         $location = generateLocation($returnurl, $_SERVER['HTTP_HOST'], array('addlink', 'post', 'edit_link'));
1166         // Scroll to the link which has been edited.
1167         $location .= '#' . $bookmark->getShortUrl();
1168         // After saving the link, redirect to the page the user was on.
1169         header('Location: '. $location);
1170         exit;
1171     }
1172
1173     // -------- User clicked the "Delete" button when editing a link: Delete link from database.
1174     if ($targetPage == Router::$PAGE_DELETELINK) {
1175         if (! $sessionManager->checkToken($_GET['token'])) {
1176             die(t('Wrong token.'));
1177         }
1178
1179         $ids = trim($_GET['lf_linkdate']);
1180         if (strpos($ids, ' ') !== false) {
1181             // multiple, space-separated ids provided
1182             $ids = array_values(array_filter(
1183                 preg_split('/\s+/', escape($ids)),
1184                 function ($item) {
1185                     return $item !== '';
1186                 }
1187             ));
1188         } else {
1189             // only a single id provided
1190             $shortUrl = $bookmarkService->get($ids)->getShortUrl();
1191             $ids = [$ids];
1192         }
1193         // assert at least one id is given
1194         if (!count($ids)) {
1195             die('no id provided');
1196         }
1197         $factory = new FormatterFactory($conf, $loginManager->isLoggedIn());
1198         $formatter = $factory->getFormatter('raw');
1199         foreach ($ids as $id) {
1200             $id = (int) escape($id);
1201             $bookmark = $bookmarkService->get($id);
1202             $data = $formatter->format($bookmark);
1203             $pluginManager->executeHooks('delete_link', $data);
1204             $bookmarkService->remove($bookmark, false);
1205         }
1206         $bookmarkService->save();
1207
1208         // If we are called from the bookmarklet, we must close the popup:
1209         if (isset($_GET['source']) && ($_GET['source']=='bookmarklet' || $_GET['source']=='firefoxsocialapi')) {
1210             echo '<script>self.close();</script>';
1211             exit;
1212         }
1213
1214         $location = '?';
1215         if (isset($_SERVER['HTTP_REFERER'])) {
1216             // Don't redirect to where we were previously if it was a permalink or an edit_link, because it would 404.
1217             $location = generateLocation(
1218                 $_SERVER['HTTP_REFERER'],
1219                 $_SERVER['HTTP_HOST'],
1220                 ['delete_link', 'edit_link', ! empty($shortUrl) ? $shortUrl : null]
1221             );
1222         }
1223
1224         header('Location: ' . $location); // After deleting the link, redirect to appropriate location
1225         exit;
1226     }
1227
1228     // -------- User clicked either "Set public" or "Set private" bulk operation
1229     if ($targetPage == Router::$PAGE_CHANGE_VISIBILITY) {
1230         if (! $sessionManager->checkToken($_GET['token'])) {
1231             die(t('Wrong token.'));
1232         }
1233
1234         $ids = trim($_GET['ids']);
1235         if (strpos($ids, ' ') !== false) {
1236             // multiple, space-separated ids provided
1237             $ids = array_values(array_filter(preg_split('/\s+/', escape($ids))));
1238         } else {
1239             // only a single id provided
1240             $ids = [$ids];
1241         }
1242
1243         // assert at least one id is given
1244         if (!count($ids)) {
1245             die('no id provided');
1246         }
1247         // assert that the visibility is valid
1248         if (!isset($_GET['newVisibility']) || !in_array($_GET['newVisibility'], ['public', 'private'])) {
1249             die('invalid visibility');
1250         } else {
1251             $private = $_GET['newVisibility'] === 'private';
1252         }
1253         $factory = new FormatterFactory($conf, $loginManager->isLoggedIn());
1254         $formatter = $factory->getFormatter('raw');
1255         foreach ($ids as $id) {
1256             $id = (int) escape($id);
1257             $bookmark = $bookmarkService->get($id);
1258             $bookmark->setPrivate($private);
1259
1260             // To preserve backward compatibility with 3rd parties, plugins still use arrays
1261             $data = $formatter->format($bookmark);
1262             $pluginManager->executeHooks('save_link', $data);
1263             $bookmark->fromArray($data);
1264
1265             $bookmarkService->set($bookmark);
1266         }
1267         $bookmarkService->save();
1268
1269         $location = '?';
1270         if (isset($_SERVER['HTTP_REFERER'])) {
1271             $location = generateLocation(
1272                 $_SERVER['HTTP_REFERER'],
1273                 $_SERVER['HTTP_HOST']
1274             );
1275         }
1276         header('Location: ' . $location); // After deleting the link, redirect to appropriate location
1277         exit;
1278     }
1279
1280     // -------- User clicked the "EDIT" button on a link: Display link edit form.
1281     if (isset($_GET['edit_link'])) {
1282         $id = (int) escape($_GET['edit_link']);
1283         try {
1284             $link = $bookmarkService->get($id);  // Read database
1285         } catch (BookmarkNotFoundException $e) {
1286             // Link not found in database.
1287             header('Location: ?');
1288             exit;
1289         }
1290
1291         $factory = new FormatterFactory($conf, $loginManager->isLoggedIn());
1292         $formatter = $factory->getFormatter('raw');
1293         $formattedLink = $formatter->format($link);
1294         $tags = $bookmarkService->bookmarksCountPerTag();
1295         if ($conf->get('formatter') === 'markdown') {
1296             $tags[BookmarkMarkdownFormatter::NO_MD_TAG] = 1;
1297         }
1298         $data = array(
1299             'link' => $formattedLink,
1300             'link_is_new' => false,
1301             'http_referer' => (isset($_SERVER['HTTP_REFERER']) ? escape($_SERVER['HTTP_REFERER']) : ''),
1302             'tags' => $tags,
1303         );
1304         $pluginManager->executeHooks('render_editlink', $data);
1305
1306         foreach ($data as $key => $value) {
1307             $PAGE->assign($key, $value);
1308         }
1309
1310         $PAGE->assign('pagetitle', t('Edit') .' '. t('Shaare') .' - '. $conf->get('general.title', 'Shaarli'));
1311         $PAGE->renderPage('editlink');
1312         exit;
1313     }
1314
1315     // -------- User want to post a new link: Display link edit form.
1316     if (isset($_GET['post'])) {
1317         $url = cleanup_url($_GET['post']);
1318
1319         $link_is_new = false;
1320         // Check if URL is not already in database (in this case, we will edit the existing link)
1321         $bookmark = $bookmarkService->findByUrl($url);
1322         if (! $bookmark) {
1323             $link_is_new = true;
1324             // Get title if it was provided in URL (by the bookmarklet).
1325             $title = empty($_GET['title']) ? '' : escape($_GET['title']);
1326             // Get description if it was provided in URL (by the bookmarklet). [Bronco added that]
1327             $description = empty($_GET['description']) ? '' : escape($_GET['description']);
1328             $tags = empty($_GET['tags']) ? '' : escape($_GET['tags']);
1329             $private = !empty($_GET['private']) && $_GET['private'] === "1" ? 1 : 0;
1330
1331             // If this is an HTTP(S) link, we try go get the page to extract
1332             // the title (otherwise we will to straight to the edit form.)
1333             if (empty($title) && strpos(get_url_scheme($url), 'http') !== false) {
1334                 $retrieveDescription = $conf->get('general.retrieve_description');
1335                 // Short timeout to keep the application responsive
1336                 // The callback will fill $charset and $title with data from the downloaded page.
1337                 get_http_response(
1338                     $url,
1339                     $conf->get('general.download_timeout', 30),
1340                     $conf->get('general.download_max_size', 4194304),
1341                     get_curl_download_callback($charset, $title, $description, $tags, $retrieveDescription)
1342                 );
1343                 if (! empty($title) && strtolower($charset) != 'utf-8') {
1344                     $title = mb_convert_encoding($title, 'utf-8', $charset);
1345                 }
1346             }
1347
1348             if ($url == '') {
1349                 $title = $conf->get('general.default_note_title', t('Note: '));
1350             }
1351             $url = escape($url);
1352             $title = escape($title);
1353
1354             $link = [
1355                 'title' => $title,
1356                 'url' => $url,
1357                 'description' => $description,
1358                 'tags' => $tags,
1359                 'private' => $private,
1360             ];
1361         } else {
1362             $factory = new FormatterFactory($conf, $loginManager->isLoggedIn());
1363             $formatter = $factory->getFormatter('raw');
1364             $link = $formatter->format($bookmark);
1365         }
1366
1367         $tags = $bookmarkService->bookmarksCountPerTag();
1368         if ($conf->get('formatter') === 'markdown') {
1369             $tags[BookmarkMarkdownFormatter::NO_MD_TAG] = 1;
1370         }
1371         $data = [
1372             'link' => $link,
1373             'link_is_new' => $link_is_new,
1374             'http_referer' => (isset($_SERVER['HTTP_REFERER']) ? escape($_SERVER['HTTP_REFERER']) : ''),
1375             'source' => (isset($_GET['source']) ? $_GET['source'] : ''),
1376             'tags' => $tags,
1377             'default_private_links' => $conf->get('privacy.default_private_links', false),
1378         ];
1379         $pluginManager->executeHooks('render_editlink', $data);
1380
1381         foreach ($data as $key => $value) {
1382             $PAGE->assign($key, $value);
1383         }
1384
1385         $PAGE->assign('pagetitle', t('Shaare') .' - '. $conf->get('general.title', 'Shaarli'));
1386         $PAGE->renderPage('editlink');
1387         exit;
1388     }
1389
1390     if ($targetPage == Router::$PAGE_PINLINK) {
1391         if (! isset($_GET['id']) || !$bookmarkService->exists($_GET['id'])) {
1392             // FIXME! Use a proper error system.
1393             $msg = t('Invalid link ID provided');
1394             echo '<script>alert("'. $msg .'");document.location=\''. index_url($_SERVER) .'\';</script>';
1395             exit;
1396         }
1397         if (! $sessionManager->checkToken($_GET['token'])) {
1398             die('Wrong token.');
1399         }
1400
1401         $link = $bookmarkService->get($_GET['id']);
1402         $link->setSticky(! $link->isSticky());
1403         $bookmarkService->set($link);
1404         header('Location: '.index_url($_SERVER));
1405         exit;
1406     }
1407
1408     if ($targetPage == Router::$PAGE_EXPORT) {
1409         // Export bookmarks as a Netscape Bookmarks file
1410
1411         if (empty($_GET['selection'])) {
1412             $PAGE->assign('pagetitle', t('Export') .' - '. $conf->get('general.title', 'Shaarli'));
1413             $PAGE->renderPage('export');
1414             exit;
1415         }
1416
1417         // export as bookmarks_(all|private|public)_YYYYmmdd_HHMMSS.html
1418         $selection = $_GET['selection'];
1419         if (isset($_GET['prepend_note_url'])) {
1420             $prependNoteUrl = $_GET['prepend_note_url'];
1421         } else {
1422             $prependNoteUrl = false;
1423         }
1424
1425         try {
1426             $factory = new FormatterFactory($conf, $loginManager->isLoggedIn());
1427             $formatter = $factory->getFormatter('raw');
1428             $PAGE->assign(
1429                 'links',
1430                 NetscapeBookmarkUtils::filterAndFormat(
1431                     $bookmarkService,
1432                     $formatter,
1433                     $selection,
1434                     $prependNoteUrl,
1435                     index_url($_SERVER)
1436                 )
1437             );
1438         } catch (Exception $exc) {
1439             header('Content-Type: text/plain; charset=utf-8');
1440             echo $exc->getMessage();
1441             exit;
1442         }
1443         $now = new DateTime();
1444         header('Content-Type: text/html; charset=utf-8');
1445         header(
1446             'Content-disposition: attachment; filename=bookmarks_'
1447             .$selection.'_'.$now->format(Bookmark::LINK_DATE_FORMAT).'.html'
1448         );
1449         $PAGE->assign('date', $now->format(DateTime::RFC822));
1450         $PAGE->assign('eol', PHP_EOL);
1451         $PAGE->assign('selection', $selection);
1452         $PAGE->renderPage('export.bookmarks');
1453         exit;
1454     }
1455
1456     if ($targetPage == Router::$PAGE_IMPORT) {
1457         // Upload a Netscape bookmark dump to import its contents
1458
1459         if (! isset($_POST['token']) || ! isset($_FILES['filetoupload'])) {
1460             // Show import dialog
1461             $PAGE->assign(
1462                 'maxfilesize',
1463                 get_max_upload_size(
1464                     ini_get('post_max_size'),
1465                     ini_get('upload_max_filesize'),
1466                     false
1467                 )
1468             );
1469             $PAGE->assign(
1470                 'maxfilesizeHuman',
1471                 get_max_upload_size(
1472                     ini_get('post_max_size'),
1473                     ini_get('upload_max_filesize'),
1474                     true
1475                 )
1476             );
1477             $PAGE->assign('pagetitle', t('Import') .' - '. $conf->get('general.title', 'Shaarli'));
1478             $PAGE->renderPage('import');
1479             exit;
1480         }
1481
1482         // Import bookmarks from an uploaded file
1483         if (isset($_FILES['filetoupload']['size']) && $_FILES['filetoupload']['size'] == 0) {
1484             // The file is too big or some form field may be missing.
1485             $msg = sprintf(
1486                 t(
1487                     'The file you are trying to upload is probably bigger than what this webserver can accept'
1488                     .' (%s). Please upload in smaller chunks.'
1489                 ),
1490                 get_max_upload_size(ini_get('post_max_size'), ini_get('upload_max_filesize'))
1491             );
1492             echo '<script>alert("'. $msg .'");document.location=\'./?do='.Router::$PAGE_IMPORT .'\';</script>';
1493             exit;
1494         }
1495         if (! $sessionManager->checkToken($_POST['token'])) {
1496             die('Wrong token.');
1497         }
1498         $status = NetscapeBookmarkUtils::import(
1499             $_POST,
1500             $_FILES,
1501             $bookmarkService,
1502             $conf,
1503             $history
1504         );
1505         echo '<script>alert("'.$status.'");document.location=\'./?do='
1506              .Router::$PAGE_IMPORT .'\';</script>';
1507         exit;
1508     }
1509
1510     // Plugin administration page
1511     if ($targetPage == Router::$PAGE_PLUGINSADMIN) {
1512         $pluginMeta = $pluginManager->getPluginsMeta();
1513
1514         // Split plugins into 2 arrays: ordered enabled plugins and disabled.
1515         $enabledPlugins = array_filter($pluginMeta, function ($v) {
1516             return $v['order'] !== false;
1517         });
1518         // Load parameters.
1519         $enabledPlugins = load_plugin_parameter_values($enabledPlugins, $conf->get('plugins', array()));
1520         uasort(
1521             $enabledPlugins,
1522             function ($a, $b) {
1523                 return $a['order'] - $b['order'];
1524             }
1525         );
1526         $disabledPlugins = array_filter($pluginMeta, function ($v) {
1527             return $v['order'] === false;
1528         });
1529
1530         $PAGE->assign('enabledPlugins', $enabledPlugins);
1531         $PAGE->assign('disabledPlugins', $disabledPlugins);
1532         $PAGE->assign('pagetitle', t('Plugin administration') .' - '. $conf->get('general.title', 'Shaarli'));
1533         $PAGE->renderPage('pluginsadmin');
1534         exit;
1535     }
1536
1537     // Plugin administration form action
1538     if ($targetPage == Router::$PAGE_SAVE_PLUGINSADMIN) {
1539         try {
1540             if (isset($_POST['parameters_form'])) {
1541                 $pluginManager->executeHooks('save_plugin_parameters', $_POST);
1542                 unset($_POST['parameters_form']);
1543                 foreach ($_POST as $param => $value) {
1544                     $conf->set('plugins.'. $param, escape($value));
1545                 }
1546             } else {
1547                 $conf->set('general.enabled_plugins', save_plugin_config($_POST));
1548             }
1549             $conf->write($loginManager->isLoggedIn());
1550             $history->updateSettings();
1551         } catch (Exception $e) {
1552             error_log(
1553                 'ERROR while saving plugin configuration:.' . PHP_EOL .
1554                 $e->getMessage()
1555             );
1556
1557             // TODO: do not handle exceptions/errors in JS.
1558             echo '<script>alert("'
1559                 . $e->getMessage()
1560                 .'");document.location=\'./?do='
1561                 . Router::$PAGE_PLUGINSADMIN
1562                 .'\';</script>';
1563             exit;
1564         }
1565         header('Location: ./?do='. Router::$PAGE_PLUGINSADMIN);
1566         exit;
1567     }
1568
1569     // Get a fresh token
1570     if ($targetPage == Router::$GET_TOKEN) {
1571         header('Content-Type:text/plain');
1572         echo $sessionManager->generateToken();
1573         exit;
1574     }
1575
1576     // -------- Thumbnails Update
1577     if ($targetPage == Router::$PAGE_THUMBS_UPDATE) {
1578         $ids = [];
1579         foreach ($bookmarkService->search() as $bookmark) {
1580             // A note or not HTTP(S)
1581             if ($bookmark->isNote() || ! startsWith(strtolower($bookmark->getUrl()), 'http')) {
1582                 continue;
1583             }
1584             $ids[] = $bookmark->getId();
1585         }
1586         $PAGE->assign('ids', $ids);
1587         $PAGE->assign('pagetitle', t('Thumbnails update') .' - '. $conf->get('general.title', 'Shaarli'));
1588         $PAGE->renderPage('thumbnails');
1589         exit;
1590     }
1591
1592     // -------- Single Thumbnail Update
1593     if ($targetPage == Router::$AJAX_THUMB_UPDATE) {
1594         if (! isset($_POST['id']) || ! ctype_digit($_POST['id'])) {
1595             http_response_code(400);
1596             exit;
1597         }
1598         $id = (int) $_POST['id'];
1599         if (! $bookmarkService->exists($id)) {
1600             http_response_code(404);
1601             exit;
1602         }
1603         $thumbnailer = new Thumbnailer($conf);
1604         $bookmark = $bookmarkService->get($id);
1605         $bookmark->setThumbnail($thumbnailer->get($bookmark->getUrl()));
1606         $bookmarkService->set($bookmark);
1607
1608         $factory = new FormatterFactory($conf, $loginManager->isLoggedIn());
1609         echo json_encode($factory->getFormatter('raw')->format($bookmark));
1610         exit;
1611     }
1612
1613     // -------- Otherwise, simply display search form and bookmarks:
1614     showLinkList($PAGE, $bookmarkService, $conf, $pluginManager, $loginManager);
1615     exit;
1616 }
1617
1618 /**
1619  * Template for the list of bookmarks (<div id="linklist">)
1620  * This function fills all the necessary fields in the $PAGE for the template 'linklist.html'
1621  *
1622  * @param pageBuilder              $PAGE          pageBuilder instance.
1623  * @param BookmarkServiceInterface $linkDb        LinkDB instance.
1624  * @param ConfigManager            $conf          Configuration Manager instance.
1625  * @param PluginManager            $pluginManager Plugin Manager instance.
1626  * @param LoginManager             $loginManager  LoginManager instance
1627  */
1628 function buildLinkList($PAGE, $linkDb, $conf, $pluginManager, $loginManager)
1629 {
1630     $factory = new FormatterFactory($conf, $loginManager->isLoggedIn());
1631     $formatter = $factory->getFormatter();
1632
1633     // Used in templates
1634     if (isset($_GET['searchtags'])) {
1635         if (! empty($_GET['searchtags'])) {
1636             $searchtags = escape(normalize_spaces($_GET['searchtags']));
1637         } else {
1638             $searchtags = false;
1639         }
1640     } else {
1641         $searchtags = '';
1642     }
1643     $searchterm = !empty($_GET['searchterm']) ? escape(normalize_spaces($_GET['searchterm'])) : '';
1644
1645     // Smallhash filter
1646     if (! empty($_SERVER['QUERY_STRING'])
1647         && preg_match('/^[a-zA-Z0-9-_@]{6}($|&|#)/', $_SERVER['QUERY_STRING'])) {
1648         try {
1649             $linksToDisplay = $linkDb->findByHash($_SERVER['QUERY_STRING']);
1650         } catch (BookmarkNotFoundException $e) {
1651             $PAGE->render404($e->getMessage());
1652             exit;
1653         }
1654     } else {
1655         // Filter bookmarks according search parameters.
1656         $visibility = ! empty($_SESSION['visibility']) ? $_SESSION['visibility'] : null;
1657         $request = [
1658             'searchtags' => $searchtags,
1659             'searchterm' => $searchterm,
1660         ];
1661         $linksToDisplay = $linkDb->search($request, $visibility, false, !empty($_SESSION['untaggedonly']));
1662     }
1663
1664     // ---- Handle paging.
1665     $keys = array();
1666     foreach ($linksToDisplay as $key => $value) {
1667         $keys[] = $key;
1668     }
1669
1670     // Select articles according to paging.
1671     $pagecount = ceil(count($keys) / $_SESSION['LINKS_PER_PAGE']);
1672     $pagecount = $pagecount == 0 ? 1 : $pagecount;
1673     $page= empty($_GET['page']) ? 1 : intval($_GET['page']);
1674     $page = $page < 1 ? 1 : $page;
1675     $page = $page > $pagecount ? $pagecount : $page;
1676     // Start index.
1677     $i = ($page-1) * $_SESSION['LINKS_PER_PAGE'];
1678     $end = $i + $_SESSION['LINKS_PER_PAGE'];
1679
1680     $thumbnailsEnabled = $conf->get('thumbnails.mode', Thumbnailer::MODE_NONE) !== Thumbnailer::MODE_NONE;
1681     if ($thumbnailsEnabled) {
1682         $thumbnailer = new Thumbnailer($conf);
1683     }
1684
1685     $linkDisp = array();
1686     while ($i<$end && $i<count($keys)) {
1687         $link = $formatter->format($linksToDisplay[$keys[$i]]);
1688
1689         // Logged in, thumbnails enabled, not a note,
1690         // and (never retrieved yet or no valid cache file)
1691         if ($loginManager->isLoggedIn()
1692             && $thumbnailsEnabled
1693             && !$linksToDisplay[$keys[$i]]->isNote()
1694             && $linksToDisplay[$keys[$i]]->getThumbnail() !== false
1695             && ! is_file($linksToDisplay[$keys[$i]]->getThumbnail())
1696         ) {
1697             $linksToDisplay[$keys[$i]]->setThumbnail($thumbnailer->get($link['url']));
1698             $linkDb->set($linksToDisplay[$keys[$i]], false);
1699             $updateDB = true;
1700             $link['thumbnail'] = $linksToDisplay[$keys[$i]]->getThumbnail();
1701         }
1702
1703         // Check for both signs of a note: starting with ? and 7 chars long.
1704 //        if ($link['url'][0] === '?' && strlen($link['url']) === 7) {
1705 //            $link['url'] = index_url($_SERVER) . $link['url'];
1706 //        }
1707
1708         $linkDisp[$keys[$i]] = $link;
1709         $i++;
1710     }
1711
1712     // If we retrieved new thumbnails, we update the database.
1713     if (!empty($updateDB)) {
1714         $linkDb->save();
1715     }
1716
1717     // Compute paging navigation
1718     $searchtagsUrl = $searchtags === '' ? '' : '&searchtags=' . urlencode($searchtags);
1719     $searchtermUrl = empty($searchterm) ? '' : '&searchterm=' . urlencode($searchterm);
1720     $previous_page_url = '';
1721     if ($i != count($keys)) {
1722         $previous_page_url = '?page=' . ($page+1) . $searchtermUrl . $searchtagsUrl;
1723     }
1724     $next_page_url='';
1725     if ($page>1) {
1726         $next_page_url = '?page=' . ($page-1) . $searchtermUrl . $searchtagsUrl;
1727     }
1728
1729     // Fill all template fields.
1730     $data = array(
1731         'previous_page_url' => $previous_page_url,
1732         'next_page_url' => $next_page_url,
1733         'page_current' => $page,
1734         'page_max' => $pagecount,
1735         'result_count' => count($linksToDisplay),
1736         'search_term' => $searchterm,
1737         'search_tags' => $searchtags,
1738         'visibility' => ! empty($_SESSION['visibility']) ? $_SESSION['visibility'] : '',
1739         'links' => $linkDisp,
1740     );
1741
1742     // If there is only a single link, we change on-the-fly the title of the page.
1743     if (count($linksToDisplay) == 1) {
1744         $data['pagetitle'] = $linksToDisplay[$keys[0]]->getTitle() .' - '. $conf->get('general.title');
1745     } elseif (! empty($searchterm) || ! empty($searchtags)) {
1746         $data['pagetitle'] = t('Search: ');
1747         $data['pagetitle'] .= ! empty($searchterm) ? $searchterm .' ' : '';
1748         $bracketWrap = function ($tag) {
1749             return '['. $tag .']';
1750         };
1751         $data['pagetitle'] .= ! empty($searchtags)
1752             ? implode(' ', array_map($bracketWrap, preg_split('/\s+/', $searchtags))).' '
1753             : '';
1754         $data['pagetitle'] .= '- '. $conf->get('general.title');
1755     }
1756
1757     $pluginManager->executeHooks('render_linklist', $data, array('loggedin' => $loginManager->isLoggedIn()));
1758
1759     foreach ($data as $key => $value) {
1760         $PAGE->assign($key, $value);
1761     }
1762
1763     return;
1764 }
1765
1766 /**
1767  * Installation
1768  * This function should NEVER be called if the file data/config.php exists.
1769  *
1770  * @param ConfigManager  $conf           Configuration Manager instance.
1771  * @param SessionManager $sessionManager SessionManager instance
1772  * @param LoginManager   $loginManager   LoginManager instance
1773  */
1774 function install($conf, $sessionManager, $loginManager)
1775 {
1776     // On free.fr host, make sure the /sessions directory exists, otherwise login will not work.
1777     if (endsWith($_SERVER['HTTP_HOST'], '.free.fr') && !is_dir($_SERVER['DOCUMENT_ROOT'].'/sessions')) {
1778         mkdir($_SERVER['DOCUMENT_ROOT'].'/sessions', 0705);
1779     }
1780
1781
1782     // This part makes sure sessions works correctly.
1783     // (Because on some hosts, session.save_path may not be set correctly,
1784     // or we may not have write access to it.)
1785     if (isset($_GET['test_session'])
1786         && ( !isset($_SESSION) || !isset($_SESSION['session_tested']) || $_SESSION['session_tested']!='Working')) {
1787         // Step 2: Check if data in session is correct.
1788         $msg = t(
1789             '<pre>Sessions do not seem to work correctly on your server.<br>'.
1790             'Make sure the variable "session.save_path" is set correctly in your PHP config, '.
1791             'and that you have write access to it.<br>'.
1792             'It currently points to %s.<br>'.
1793             'On some browsers, accessing your server via a hostname like \'localhost\' '.
1794             'or any custom hostname without a dot causes cookie storage to fail. '.
1795             'We recommend accessing your server via it\'s IP address or Fully Qualified Domain Name.<br>'
1796         );
1797         $msg = sprintf($msg, session_save_path());
1798         echo $msg;
1799         echo '<br><a href="?">'. t('Click to try again.') .'</a></pre>';
1800         die;
1801     }
1802     if (!isset($_SESSION['session_tested'])) {
1803         // Step 1 : Try to store data in session and reload page.
1804         $_SESSION['session_tested'] = 'Working';  // Try to set a variable in session.
1805         header('Location: '.index_url($_SERVER).'?test_session');  // Redirect to check stored data.
1806     }
1807     if (isset($_GET['test_session'])) {
1808         // Step 3: Sessions are OK. Remove test parameter from URL.
1809         header('Location: '.index_url($_SERVER));
1810     }
1811
1812
1813     if (!empty($_POST['setlogin']) && !empty($_POST['setpassword'])) {
1814         $tz = 'UTC';
1815         if (!empty($_POST['continent']) && !empty($_POST['city'])
1816             && isTimeZoneValid($_POST['continent'], $_POST['city'])
1817         ) {
1818             $tz = $_POST['continent'].'/'.$_POST['city'];
1819         }
1820         $conf->set('general.timezone', $tz);
1821         $login = $_POST['setlogin'];
1822         $conf->set('credentials.login', $login);
1823         $salt = sha1(uniqid('', true) .'_'. mt_rand());
1824         $conf->set('credentials.salt', $salt);
1825         $conf->set('credentials.hash', sha1($_POST['setpassword'] . $login . $salt));
1826         if (!empty($_POST['title'])) {
1827             $conf->set('general.title', escape($_POST['title']));
1828         } else {
1829             $conf->set('general.title', 'Shared bookmarks on '.escape(index_url($_SERVER)));
1830         }
1831         $conf->set('translation.language', escape($_POST['language']));
1832         $conf->set('updates.check_updates', !empty($_POST['updateCheck']));
1833         $conf->set('api.enabled', !empty($_POST['enableApi']));
1834         $conf->set(
1835             'api.secret',
1836             generate_api_secret(
1837                 $conf->get('credentials.login'),
1838                 $conf->get('credentials.salt')
1839             )
1840         );
1841         try {
1842             // Everything is ok, let's create config file.
1843             $conf->write($loginManager->isLoggedIn());
1844         } catch (Exception $e) {
1845             error_log(
1846                 'ERROR while writing config file after installation.' . PHP_EOL .
1847                     $e->getMessage()
1848             );
1849
1850             // TODO: do not handle exceptions/errors in JS.
1851             echo '<script>alert("'. $e->getMessage() .'");document.location=\'?\';</script>';
1852             exit;
1853         }
1854
1855         $history = new History($conf->get('resource.history'));
1856         $bookmarkService = new BookmarkFileService($conf, $history, true);
1857         if ($bookmarkService->count() === 0) {
1858             $bookmarkService->initialize();
1859         }
1860
1861         echo '<script>alert('
1862             .'"Shaarli is now configured. '
1863             .'Please enter your login/password and start shaaring your bookmarks!"'
1864             .');document.location=\'./login\';</script>';
1865         exit;
1866     }
1867
1868     $PAGE = new PageBuilder($conf, $_SESSION, null, $sessionManager->generateToken());
1869     list($continents, $cities) = generateTimeZoneData(timezone_identifiers_list(), date_default_timezone_get());
1870     $PAGE->assign('continents', $continents);
1871     $PAGE->assign('cities', $cities);
1872     $PAGE->assign('languages', Languages::getAvailableLanguages());
1873     $PAGE->renderPage('install');
1874     exit;
1875 }
1876
1877 if (!isset($_SESSION['LINKS_PER_PAGE'])) {
1878     $_SESSION['LINKS_PER_PAGE'] = $conf->get('general.links_per_page', 20);
1879 }
1880
1881 try {
1882     $history = new History($conf->get('resource.history'));
1883 } catch (Exception $e) {
1884     die($e->getMessage());
1885 }
1886
1887 $linkDb = new BookmarkFileService($conf, $history, $loginManager->isLoggedIn());
1888
1889 if (isset($_SERVER['QUERY_STRING']) && startsWith($_SERVER['QUERY_STRING'], 'do=dailyrss')) {
1890     showDailyRSS($linkDb, $conf, $loginManager);
1891     exit;
1892 }
1893
1894 $containerBuilder = new ContainerBuilder($conf, $sessionManager, $loginManager, WEB_PATH);
1895 $container = $containerBuilder->build();
1896 $app = new App($container);
1897
1898 // REST API routes
1899 $app->group('/api/v1', function () {
1900     $this->get('/info', '\Shaarli\Api\Controllers\Info:getInfo')->setName('getInfo');
1901     $this->get('/links', '\Shaarli\Api\Controllers\Links:getLinks')->setName('getLinks');
1902     $this->get('/links/{id:[\d]+}', '\Shaarli\Api\Controllers\Links:getLink')->setName('getLink');
1903     $this->post('/links', '\Shaarli\Api\Controllers\Links:postLink')->setName('postLink');
1904     $this->put('/links/{id:[\d]+}', '\Shaarli\Api\Controllers\Links:putLink')->setName('putLink');
1905     $this->delete('/links/{id:[\d]+}', '\Shaarli\Api\Controllers\Links:deleteLink')->setName('deleteLink');
1906
1907     $this->get('/tags', '\Shaarli\Api\Controllers\Tags:getTags')->setName('getTags');
1908     $this->get('/tags/{tagName:[\w]+}', '\Shaarli\Api\Controllers\Tags:getTag')->setName('getTag');
1909     $this->put('/tags/{tagName:[\w]+}', '\Shaarli\Api\Controllers\Tags:putTag')->setName('putTag');
1910     $this->delete('/tags/{tagName:[\w]+}', '\Shaarli\Api\Controllers\Tags:deleteTag')->setName('deleteTag');
1911
1912     $this->get('/history', '\Shaarli\Api\Controllers\HistoryController:getHistory')->setName('getHistory');
1913 })->add('\Shaarli\Api\ApiMiddleware');
1914
1915 $app->group('', function () {
1916     $this->get('/login', '\Shaarli\Front\Controller\LoginController:index')->setName('login');
1917     $this->get('/logout', '\Shaarli\Front\Controller\LogoutController:index')->setName('logout');
1918     $this->get('/picture-wall', '\Shaarli\Front\Controller\PictureWallController:index')->setName('picwall');
1919     $this->get('/add-tag/{newTag}', '\Shaarli\Front\Controller\TagController:addTag')->setName('add-tag');
1920 })->add('\Shaarli\Front\ShaarliMiddleware');
1921
1922 $response = $app->run(true);
1923
1924 // Hack to make Slim and Shaarli router work together:
1925 // If a Slim route isn't found and NOT API call, we call renderPage().
1926 if ($response->getStatusCode() == 404 && strpos($_SERVER['REQUEST_URI'], '/api/v1') === false) {
1927     // We use UTF-8 for proper international characters handling.
1928     header('Content-Type: text/html; charset=utf-8');
1929     renderPage($conf, $pluginManager, $linkDb, $history, $sessionManager, $loginManager);
1930 } else {
1931     $response = $response
1932         ->withHeader('Access-Control-Allow-Origin', '*')
1933         ->withHeader(
1934             'Access-Control-Allow-Headers',
1935             'X-Requested-With, Content-Type, Accept, Origin, Authorization'
1936         )
1937         ->withHeader('Access-Control-Allow-Methods', 'GET, POST, PUT, DELETE, OPTIONS');
1938     $app->respond($response);
1939 }