<?php /** * poche, a read it later open source system * * @category poche * @author Nicolas LÅ“uillet <support@inthepoche.com> * @copyright 2013 * @license http://www.wtfpl.net/ see COPYING file */ class Poche { public static $canRenderTemplates = true; public static $configFileAvailable = true; public $user; public $store; public $tpl; public $messages; public $pagination; private $currentTheme = ''; private $currentLanguage = ''; private $notInstalledMessage = array(); # @todo make this dynamic (actually install themes and save them in the database including author information et cetera) private $installedThemes = array( 'default' => array('requires' => array()), 'dark' => array('requires' => array('default')), 'dmagenta' => array('requires' => array('default')), 'solarized' => array('requires' => array('default')), 'solarized-dark' => array('requires' => array('default')) ); public function __construct() { if ($this->configFileIsAvailable()) { $this->init(); } if ($this->themeIsInstalled()) { $this->initTpl(); } if ($this->systemIsInstalled()) { $this->store = new Database(); $this->messages = new Messages(); # installation if (! $this->store->isInstalled()) { $this->install(); } } } private function init() { Tools::initPhp(); Session::$sessionName = 'poche'; Session::init(); if (isset($_SESSION['poche_user']) && $_SESSION['poche_user'] != array()) { $this->user = $_SESSION['poche_user']; } else { # fake user, just for install & login screens $this->user = new User(); $this->user->setConfig($this->getDefaultConfig()); } # l10n $language = $this->user->getConfigValue('language'); putenv('LC_ALL=' . $language); setlocale(LC_ALL, $language); bindtextdomain($language, LOCALE); textdomain($language); # Pagination $this->pagination = new Paginator($this->user->getConfigValue('pager'), 'p'); # Set up theme $themeDirectory = $this->user->getConfigValue('theme'); if ($themeDirectory === false) { $themeDirectory = DEFAULT_THEME; } $this->currentTheme = $themeDirectory; # Set up language $languageDirectory = $this->user->getConfigValue('language'); if ($languageDirectory === false) { $languageDirectory = DEFAULT_THEME; } $this->currentLanguage = $languageDirectory; } public function configFileIsAvailable() { if (! self::$configFileAvailable) { $this->notInstalledMessage[] = 'You have to rename inc/poche/config.inc.php.new to inc/poche/config.inc.php.'; return false; } return true; } public function themeIsInstalled() { $passTheme = TRUE; # Twig is an absolute requirement for Poche to function. Abort immediately if the Composer installer hasn't been run yet if (! self::$canRenderTemplates) { $this->notInstalledMessage[] = 'Twig does not seem to be installed. Please initialize the Composer installation to automatically fetch dependencies. Have a look at <a href="http://doc.inthepoche.com/doku.php?id=users:begin:install">the documentation.</a>'; $passTheme = FALSE; } if (! is_writable(CACHE)) { $this->notInstalledMessage[] = 'You don\'t have write access on cache directory.'; self::$canRenderTemplates = false; $passTheme = FALSE; } # Check if the selected theme and its requirements are present if ($this->getTheme() != '' && ! is_dir(THEME . '/' . $this->getTheme())) { $this->notInstalledMessage[] = 'The currently selected theme (' . $this->getTheme() . ') does not seem to be properly installed (Missing directory: ' . THEME . '/' . $this->getTheme() . ')'; self::$canRenderTemplates = false; $passTheme = FALSE; } foreach ($this->installedThemes[$this->getTheme()]['requires'] as $requiredTheme) { if (! is_dir(THEME . '/' . $requiredTheme)) { $this->notInstalledMessage[] = 'The required "' . $requiredTheme . '" theme is missing for the current theme (' . $this->getTheme() . ')'; self::$canRenderTemplates = false; $passTheme = FALSE; } } if (!$passTheme) { return FALSE; } return true; } /** * all checks before installation. * @todo move HTML to template * @return boolean */ public function systemIsInstalled() { $msg = TRUE; $configSalt = defined('SALT') ? constant('SALT') : ''; if (empty($configSalt)) { $this->notInstalledMessage[] = 'You have not yet filled in the SALT value in the config.inc.php file.'; $msg = FALSE; } if (STORAGE == 'sqlite' && ! file_exists(STORAGE_SQLITE)) { Tools::logm('sqlite file doesn\'t exist'); $this->notInstalledMessage[] = 'sqlite file doesn\'t exist, you can find it in install folder. Copy it in /db folder.'; $msg = FALSE; } if (is_dir(ROOT . '/install') && ! DEBUG_POCHE) { $this->notInstalledMessage[] = 'you have to delete the /install folder before using poche.'; $msg = FALSE; } if (STORAGE == 'sqlite' && ! is_writable(STORAGE_SQLITE)) { Tools::logm('you don\'t have write access on sqlite file'); $this->notInstalledMessage[] = 'You don\'t have write access on sqlite file.'; $msg = FALSE; } if (! $msg) { return false; } return true; } public function getNotInstalledMessage() { return $this->notInstalledMessage; } private function initTpl() { $loaderChain = new Twig_Loader_Chain(); # add the current theme as first to the loader chain so Twig will look there first for overridden template files try { $loaderChain->addLoader(new Twig_Loader_Filesystem(THEME . '/' . $this->getTheme())); } catch (Twig_Error_Loader $e) { # @todo isInstalled() should catch this, inject Twig later die('The currently selected theme (' . $this->getTheme() . ') does not seem to be properly installed (' . THEME . '/' . $this->getTheme() .' is missing)'); } # add all required themes to the loader chain foreach ($this->installedThemes[$this->getTheme()]['requires'] as $requiredTheme) { try { $loaderChain->addLoader(new Twig_Loader_Filesystem(THEME . '/' . DEFAULT_THEME)); } catch (Twig_Error_Loader $e) { # @todo isInstalled() should catch this, inject Twig later die('The required "' . $requiredTheme . '" theme is missing for the current theme (' . $this->getTheme() . ')'); } } if (DEBUG_POCHE) { $twig_params = array(); } else { $twig_params = array('cache' => CACHE); } $this->tpl = new Twig_Environment($loaderChain, $twig_params); $this->tpl->addExtension(new Twig_Extensions_Extension_I18n()); # filter to display domain name of an url $filter = new Twig_SimpleFilter('getDomain', 'Tools::getDomain'); $this->tpl->addFilter($filter); # filter for reading time $filter = new Twig_SimpleFilter('getReadingTime', 'Tools::getReadingTime'); $this->tpl->addFilter($filter); # filter for simple filenames in config view $filter = new Twig_SimpleFilter('getPrettyFilename', function($string) { return str_replace(ROOT, '', $string); }); $this->tpl->addFilter($filter); } private function install() { Tools::logm('poche still not installed'); echo $this->tpl->render('install.twig', array( 'token' => Session::getToken(), 'theme' => $this->getTheme(), 'poche_url' => Tools::getPocheUrl() )); if (isset($_GET['install'])) { if (($_POST['password'] == $_POST['password_repeat']) && $_POST['password'] != "" && $_POST['login'] != "") { # let's rock, install poche baby ! if ($this->store->install($_POST['login'], Tools::encodeString($_POST['password'] . $_POST['login']))) { Session::logout(); Tools::logm('poche is now installed'); Tools::redirect(); } } else { Tools::logm('error during installation'); Tools::redirect(); } } exit(); } public function getTheme() { return $this->currentTheme; } public function getLanguage() { return $this->currentLanguage; } public function getInstalledThemes() { $handle = opendir(THEME); $themes = array(); while (($theme = readdir($handle)) !== false) { # Themes are stored in a directory, so all directory names are themes # @todo move theme installation data to database if (! is_dir(THEME . '/' . $theme) || in_array($theme, array('..', '.'))) { continue; } $current = false; if ($theme === $this->getTheme()) { $current = true; } $themes[] = array('name' => $theme, 'current' => $current); } sort($themes); return $themes; } public function getInstalledLanguages() { $handle = opendir(LOCALE); $languages = array(); while (($language = readdir($handle)) !== false) { # Languages are stored in a directory, so all directory names are languages # @todo move language installation data to database if (! is_dir(LOCALE . '/' . $language) || in_array($language, array('..', '.'))) { continue; } $current = false; if ($language === $this->getLanguage()) { $current = true; } $languages[] = array('name' => $language, 'current' => $current); } return $languages; } public function getDefaultConfig() { return array( 'pager' => PAGINATION, 'language' => LANG, 'theme' => DEFAULT_THEME ); } /** * Call action (mark as fav, archive, delete, etc.) */ public function action($action, Url $url, $id = 0, $import = FALSE, $autoclose = FALSE) { switch ($action) { case 'add': $json = file_get_contents(Tools::getPocheUrl() . '/inc/3rdparty/makefulltextfeed.php?url='.urlencode($url->getUrl()).'&max=5&links=preserve&exc=&format=json&submit=Create+Feed'); $content = json_decode($json, true); $title = $content['rss']['channel']['item']['title']; $body = $content['rss']['channel']['item']['description']; if ($this->store->add($url->getUrl(), $title, $body, $this->user->getId())) { Tools::logm('add link ' . $url->getUrl()); $sequence = ''; if (STORAGE == 'postgres') { $sequence = 'entries_id_seq'; } $last_id = $this->store->getLastId($sequence); if (DOWNLOAD_PICTURES) { $content = filtre_picture($body, $url->getUrl(), $last_id); Tools::logm('updating content article'); $this->store->updateContent($last_id, $content, $this->user->getId()); } if (!$import) { $this->messages->add('s', _('the link has been added successfully')); } } else { if (!$import) { $this->messages->add('e', _('error during insertion : the link wasn\'t added')); Tools::logm('error during insertion : the link wasn\'t added ' . $url->getUrl()); } } if (!$import) { if ($autoclose == TRUE) { Tools::redirect('?view=home'); } else { Tools::redirect('?view=home&closewin=true'); } } break; case 'delete': $msg = 'delete link #' . $id; if ($this->store->deleteById($id, $this->user->getId())) { if (DOWNLOAD_PICTURES) { remove_directory(ABS_PATH . $id); } $this->messages->add('s', _('the link has been deleted successfully')); } else { $this->messages->add('e', _('the link wasn\'t deleted')); $msg = 'error : can\'t delete link #' . $id; } Tools::logm($msg); Tools::redirect('?'); break; case 'toggle_fav' : $this->store->favoriteById($id, $this->user->getId()); Tools::logm('mark as favorite link #' . $id); if (!$import) { Tools::redirect(); } break; case 'toggle_archive' : $this->store->archiveById($id, $this->user->getId()); Tools::logm('archive link #' . $id); if (!$import) { Tools::redirect(); } break; case 'add_tag' : $tags = explode(',', $_POST['value']); $entry_id = $_POST['entry_id']; foreach($tags as $key => $tag_value) { $value = trim($tag_value); $tag = $this->store->retrieveTagByValue($value); if (is_null($tag)) { # we create the tag $tag = $this->store->createTag($value); $sequence = ''; if (STORAGE == 'postgres') { $sequence = 'tags_id_seq'; } $tag_id = $this->store->getLastId($sequence); } else { $tag_id = $tag['id']; } # we assign the tag to the article $this->store->setTagToEntry($tag_id, $entry_id); } Tools::redirect(); break; case 'remove_tag' : $tag_id = $_GET['tag_id']; $this->store->removeTagForEntry($id, $tag_id); Tools::redirect(); break; default: break; } } function displayView($view, $id = 0) { $tpl_vars = array(); switch ($view) { case 'config': $dev = $this->getPocheVersion('dev'); $prod = $this->getPocheVersion('prod'); $compare_dev = version_compare(POCHE, $dev); $compare_prod = version_compare(POCHE, $prod); $themes = $this->getInstalledThemes(); $languages = $this->getInstalledLanguages(); $token = $this->user->getConfigValue('token'); $http_auth = (isset($_SERVER['PHP_AUTH_USER']) || isset($_SERVER['REMOTE_USER'])) ? true : false; $tpl_vars = array( 'themes' => $themes, 'languages' => $languages, 'dev' => $dev, 'prod' => $prod, 'compare_dev' => $compare_dev, 'compare_prod' => $compare_prod, 'token' => $token, 'user_id' => $this->user->getId(), 'http_auth' => $http_auth, ); Tools::logm('config view'); break; case 'edit-tags': # tags $tags = $this->store->retrieveTagsByEntry($id); $tpl_vars = array( 'entry_id' => $id, 'tags' => $tags, ); break; case 'tag': $entries = $this->store->retrieveEntriesByTag($id); $tag = $this->store->retrieveTag($id); $tpl_vars = array( 'tag' => $tag, 'entries' => $entries, ); break; case 'tags': $token = $this->user->getConfigValue('token'); $tags = $this->store->retrieveAllTags(); $tpl_vars = array( 'token' => $token, 'user_id' => $this->user->getId(), 'tags' => $tags, ); break; case 'view': $entry = $this->store->retrieveOneById($id, $this->user->getId()); if ($entry != NULL) { Tools::logm('view link #' . $id); $content = $entry['content']; if (function_exists('tidy_parse_string')) { $tidy = tidy_parse_string($content, array('indent'=>true, 'show-body-only' => true), 'UTF8'); $tidy->cleanRepair(); $content = $tidy->value; } # flattr checking $flattr = new FlattrItem(); $flattr->checkItem($entry['url'], $entry['id']); # tags $tags = $this->store->retrieveTagsByEntry($entry['id']); $tpl_vars = array( 'entry' => $entry, 'content' => $content, 'flattr' => $flattr, 'tags' => $tags ); } else { Tools::logm('error in view call : entry is null'); } break; default: # home, favorites and archive views $entries = $this->store->getEntriesByView($view, $this->user->getId()); $tpl_vars = array( 'entries' => '', 'page_links' => '', 'nb_results' => '', ); if (count($entries) > 0) { $this->pagination->set_total(count($entries)); $page_links = $this->pagination->page_links('?view=' . $view . '&sort=' . $_SESSION['sort'] . '&'); $datas = $this->store->getEntriesByView($view, $this->user->getId(), $this->pagination->get_limit()); $tpl_vars['entries'] = $datas; $tpl_vars['page_links'] = $page_links; $tpl_vars['nb_results'] = count($entries); } Tools::logm('display ' . $view . ' view'); break; } return $tpl_vars; } /** * update the password of the current user. * if MODE_DEMO is TRUE, the password can't be updated. * @todo add the return value * @todo set the new password in function header like this updatePassword($newPassword) * @return boolean */ public function updatePassword() { if (MODE_DEMO) { $this->messages->add('i', _('in demo mode, you can\'t update your password')); Tools::logm('in demo mode, you can\'t do this'); Tools::redirect('?view=config'); } else { if (isset($_POST['password']) && isset($_POST['password_repeat'])) { if ($_POST['password'] == $_POST['password_repeat'] && $_POST['password'] != "") { $this->messages->add('s', _('your password has been updated')); $this->store->updatePassword($this->user->getId(), Tools::encodeString($_POST['password'] . $this->user->getUsername())); Session::logout(); Tools::logm('password updated'); Tools::redirect(); } else { $this->messages->add('e', _('the two fields have to be filled & the password must be the same in the two fields')); Tools::redirect('?view=config'); } } } } public function updateTheme() { # no data if (empty($_POST['theme'])) { } # we are not going to change it to the current theme... if ($_POST['theme'] == $this->getTheme()) { $this->messages->add('w', _('still using the "' . $this->getTheme() . '" theme!')); Tools::redirect('?view=config'); } $themes = $this->getInstalledThemes(); $actualTheme = false; foreach ($themes as $theme) { if ($theme['name'] == $_POST['theme']) { $actualTheme = true; break; } } if (! $actualTheme) { $this->messages->add('e', _('that theme does not seem to be installed')); Tools::redirect('?view=config'); } $this->store->updateUserConfig($this->user->getId(), 'theme', $_POST['theme']); $this->messages->add('s', _('you have changed your theme preferences')); $currentConfig = $_SESSION['poche_user']->config; $currentConfig['theme'] = $_POST['theme']; $_SESSION['poche_user']->setConfig($currentConfig); Tools::redirect('?view=config'); } public function updateLanguage() { # no data if (empty($_POST['language'])) { } # we are not going to change it to the current language... if ($_POST['language'] == $this->getLanguage()) { $this->messages->add('w', _('still using the "' . $this->getLanguage() . '" language!')); Tools::redirect('?view=config'); } $languages = $this->getInstalledLanguages(); $actualLanguage = false; foreach ($languages as $language) { if ($language['name'] == $_POST['language']) { $actualLanguage = true; break; } } if (! $actualLanguage) { $this->messages->add('e', _('that language does not seem to be installed')); Tools::redirect('?view=config'); } $this->store->updateUserConfig($this->user->getId(), 'language', $_POST['language']); $this->messages->add('s', _('you have changed your language preferences')); $currentConfig = $_SESSION['poche_user']->config; $currentConfig['language'] = $_POST['language']; $_SESSION['poche_user']->setConfig($currentConfig); Tools::redirect('?view=config'); } /** * get credentials from differents sources * it redirects the user to the $referer link * @return array */ private function credentials() { if(isset($_SERVER['PHP_AUTH_USER'])) { return array($_SERVER['PHP_AUTH_USER'],'php_auth'); } if(!empty($_POST['login']) && !empty($_POST['password'])) { return array($_POST['login'],$_POST['password']); } if(isset($_SERVER['REMOTE_USER'])) { return array($_SERVER['REMOTE_USER'],'http_auth'); } return array(false,false); } /** * checks if login & password are correct and save the user in session. * it redirects the user to the $referer link * @param string $referer the url to redirect after login * @todo add the return value * @return boolean */ public function login($referer) { list($login,$password)=$this->credentials(); if($login === false || $password === false) { $this->messages->add('e', _('login failed: you have to fill all fields')); Tools::logm('login failed'); Tools::redirect(); } if (!empty($login) && !empty($password)) { $user = $this->store->login($login, Tools::encodeString($password . $login)); if ($user != array()) { # Save login into Session $longlastingsession = isset($_POST['longlastingsession']); Session::login($user['username'], $user['password'], $login, Tools::encodeString($password . $login), $longlastingsession, array('poche_user' => new User($user))); $this->messages->add('s', _('welcome to your poche')); Tools::logm('login successful'); Tools::redirect($referer); } $this->messages->add('e', _('login failed: bad login or password')); Tools::logm('login failed'); Tools::redirect(); } } /** * log out the poche user. It cleans the session. * @todo add the return value * @return boolean */ public function logout() { $this->user = array(); Session::logout(); $this->messages->add('s', _('see you soon!')); Tools::logm('logout'); Tools::redirect(); } /** * import from Instapaper. poche needs a ./instapaper-export.html file * @todo add the return value * @param string $targetFile the file used for importing * @return boolean */ private function importFromInstapaper($targetFile) { # TODO gestion des articles favs $html = new simple_html_dom(); $html->load_file($targetFile); Tools::logm('starting import from instapaper'); $read = 0; $errors = array(); foreach($html->find('ol') as $ul) { foreach($ul->find('li') as $li) { $a = $li->find('a'); $url = new Url(base64_encode($a[0]->href)); $this->action('add', $url, 0, TRUE); if ($read == '1') { $sequence = ''; if (STORAGE == 'postgres') { $sequence = 'entries_id_seq'; } $last_id = $this->store->getLastId($sequence); $this->action('toggle_archive', $url, $last_id, TRUE); } } # the second <ol> is for read links $read = 1; } $this->messages->add('s', _('import from instapaper completed')); Tools::logm('import from instapaper completed'); Tools::redirect(); } /** * import from Pocket. poche needs a ./ril_export.html file * @todo add the return value * @param string $targetFile the file used for importing * @return boolean */ private function importFromPocket($targetFile) { # TODO gestion des articles favs $html = new simple_html_dom(); $html->load_file($targetFile); Tools::logm('starting import from pocket'); $read = 0; $errors = array(); foreach($html->find('ul') as $ul) { foreach($ul->find('li') as $li) { $a = $li->find('a'); $url = new Url(base64_encode($a[0]->href)); $this->action('add', $url, 0, TRUE); if ($read == '1') { $sequence = ''; if (STORAGE == 'postgres') { $sequence = 'entries_id_seq'; } $last_id = $this->store->getLastId($sequence); $this->action('toggle_archive', $url, $last_id, TRUE); } } # the second <ul> is for read links $read = 1; } $this->messages->add('s', _('import from pocket completed')); Tools::logm('import from pocket completed'); Tools::redirect(); } /** * import from Readability. poche needs a ./readability file * @todo add the return value * @param string $targetFile the file used for importing * @return boolean */ private function importFromReadability($targetFile) { # TODO gestion des articles lus / favs $str_data = file_get_contents($targetFile); $data = json_decode($str_data,true); Tools::logm('starting import from Readability'); $count = 0; foreach ($data as $key => $value) { $url = NULL; $favorite = FALSE; $archive = FALSE; foreach ($value as $attr => $attr_value) { if ($attr == 'article__url') { $url = new Url(base64_encode($attr_value)); } $sequence = ''; if (STORAGE == 'postgres') { $sequence = 'entries_id_seq'; } if ($attr_value == 'true') { if ($attr == 'favorite') { $favorite = TRUE; } if ($attr == 'archive') { $archive = TRUE; } } } # we can add the url if (!is_null($url) && $url->isCorrect()) { $this->action('add', $url, 0, TRUE); $count++; if ($favorite) { $last_id = $this->store->getLastId($sequence); $this->action('toggle_fav', $url, $last_id, TRUE); } if ($archive) { $last_id = $this->store->getLastId($sequence); $this->action('toggle_archive', $url, $last_id, TRUE); } } } $this->messages->add('s', _('import from Readability completed. ' . $count . ' new links.')); Tools::logm('import from Readability completed'); Tools::redirect(); } /** * import datas into your poche * @param string $from name of the service to import : pocket, instapaper or readability * @todo add the return value * @return boolean */ public function import($from) { $providers = array( 'pocket' => 'importFromPocket', 'readability' => 'importFromReadability', 'instapaper' => 'importFromInstapaper' ); if (! isset($providers[$from])) { $this->messages->add('e', _('Unknown import provider.')); Tools::redirect(); } $targetDefinition = 'IMPORT_' . strtoupper($from) . '_FILE'; $targetFile = constant($targetDefinition); if (! defined($targetDefinition)) { $this->messages->add('e', _('Incomplete inc/poche/define.inc.php file, please define "' . $targetDefinition . '".')); Tools::redirect(); } if (! file_exists($targetFile)) { $this->messages->add('e', _('Could not find required "' . $targetFile . '" import file.')); Tools::redirect(); } $this->$providers[$from]($targetFile); } /** * export poche entries in json * @return json all poche entries */ public function export() { $entries = $this->store->retrieveAll($this->user->getId()); echo $this->tpl->render('export.twig', array( 'export' => Tools::renderJson($entries), )); Tools::logm('export view'); } /** * Checks online the latest version of poche and cache it * @param string $which 'prod' or 'dev' * @return string latest $which version */ private function getPocheVersion($which = 'prod') { $cache_file = CACHE . '/' . $which; # checks if the cached version file exists if (file_exists($cache_file) && (filemtime($cache_file) > (time() - 86400 ))) { $version = file_get_contents($cache_file); } else { $version = file_get_contents('http://static.inthepoche.com/versions/' . $which); file_put_contents($cache_file, $version, LOCK_EX); } return $version; } public function generateToken() { if (ini_get('open_basedir') === '') { $token = substr(base64_encode(file_get_contents('/dev/urandom', false, null, 0, 20)), 0, 15); } else { $token = substr(base64_encode(uniqid(mt_rand(), true)), 0, 20); } $this->store->updateUserConfig($this->user->getId(), 'token', $token); $currentConfig = $_SESSION['poche_user']->config; $currentConfig['token'] = $token; $_SESSION['poche_user']->setConfig($currentConfig); } public function generateFeeds($token, $user_id, $tag_id, $type = 'home') { $allowed_types = array('home', 'fav', 'archive', 'tag'); $config = $this->store->getConfigUser($user_id); if (!in_array($type, $allowed_types) || $token != $config['token']) { die(_('Uh, there is a problem while generating feeds.')); } // Check the token $feed = new FeedWriter(RSS2); $feed->setTitle('poche - ' . $type . ' feed'); $feed->setLink(Tools::getPocheUrl()); $feed->setChannelElement('updated', date(DATE_RSS , time())); $feed->setChannelElement('author', 'poche'); if ($type == 'tag') { $entries = $this->store->retrieveEntriesByTag($tag_id); } else { $entries = $this->store->getEntriesByView($type, $user_id); } if (count($entries) > 0) { foreach ($entries as $entry) { $newItem = $feed->createNewItem(); $newItem->setTitle(htmlentities($entry['title'])); $newItem->setLink(Tools::getPocheUrl() . '?view=view&id=' . $entry['id']); $newItem->setDate(time()); $newItem->setDescription($entry['content']); $feed->addItem($newItem); } } $feed->genarateFeed(); exit; } }