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- <?php
- /**
- * Shaarli v0.8.1 - Shaare your links...
- *
- * The personal, minimalist, super-fast, database free, bookmarking service.
- *
- * Friendly fork by the Shaarli community:
- * - https://github.com/shaarli/Shaarli
- *
- * Original project by sebsauvage.net:
- * - http://sebsauvage.net/wiki/doku.php?id=php:shaarli
- * - https://github.com/sebsauvage/Shaarli
- *
- * Licence: http://www.opensource.org/licenses/zlib-license.php
- *
- * Requires: PHP 5.3.x
- */
- // Set 'UTC' as the default timezone if it is not defined in php.ini
- // See http://php.net/manual/en/datetime.configuration.php#ini.date.timezone
- if (date_default_timezone_get() == '') {
- date_default_timezone_set('UTC');
- }
- /*
- * PHP configuration
- */
- define('shaarli_version', '0.8.1');
- // http://server.com/x/shaarli --> /shaarli/
- define('WEB_PATH', substr($_SERVER['REQUEST_URI'], 0, 1+strrpos($_SERVER['REQUEST_URI'], '/', 0)));
- // High execution time in case of problematic imports/exports.
- ini_set('max_input_time','60');
- // Try to set max upload file size and read
- ini_set('memory_limit', '128M');
- ini_set('post_max_size', '16M');
- ini_set('upload_max_filesize', '16M');
- // See all error except warnings
- error_reporting(E_ALL^E_WARNING);
- // See all errors (for debugging only)
- //error_reporting(-1);
- // 3rd-party libraries
- if (! file_exists(__DIR__ . '/vendor/autoload.php')) {
- header('Content-Type: text/plain; charset=utf-8');
- echo "Error: missing Composer configuration\n\n"
- ."If you installed Shaarli through Git or using the development branch,\n"
- ."please refer to the installation documentation to install PHP"
- ." dependencies using Composer:\n"
- ."- https://github.com/shaarli/Shaarli/wiki/Server-requirements\n"
- ."- https://github.com/shaarli/Shaarli/wiki/Download-and-Installation";
- exit;
- }
- require_once 'inc/rain.tpl.class.php';
- require_once __DIR__ . '/vendor/autoload.php';
- // Shaarli library
- require_once 'application/ApplicationUtils.php';
- require_once 'application/Cache.php';
- require_once 'application/CachedPage.php';
- require_once 'application/config/ConfigManager.php';
- require_once 'application/config/ConfigPlugin.php';
- require_once 'application/FeedBuilder.php';
- require_once 'application/FileUtils.php';
- require_once 'application/HttpUtils.php';
- require_once 'application/Languages.php';
- require_once 'application/LinkDB.php';
- require_once 'application/LinkFilter.php';
- require_once 'application/LinkUtils.php';
- require_once 'application/NetscapeBookmarkUtils.php';
- require_once 'application/PageBuilder.php';
- require_once 'application/TimeZone.php';
- require_once 'application/Url.php';
- require_once 'application/Utils.php';
- require_once 'application/PluginManager.php';
- require_once 'application/Router.php';
- require_once 'application/Updater.php';
- use \Shaarli\ThemeUtils;
- // Ensure the PHP version is supported
- try {
- ApplicationUtils::checkPHPVersion('5.3', PHP_VERSION);
- } catch(Exception $exc) {
- header('Content-Type: text/plain; charset=utf-8');
- echo $exc->getMessage();
- exit;
- }
- // Force cookie path (but do not change lifetime)
- $cookie = session_get_cookie_params();
- $cookiedir = '';
- if (dirname($_SERVER['SCRIPT_NAME']) != '/') {
- $cookiedir = dirname($_SERVER["SCRIPT_NAME"]).'/';
- }
- // Set default cookie expiration and path.
- session_set_cookie_params($cookie['lifetime'], $cookiedir, $_SERVER['SERVER_NAME']);
- // Set session parameters on server side.
- // If the user does not access any page within this time, his/her session is considered expired.
- define('INACTIVITY_TIMEOUT', 3600); // in seconds.
- // Use cookies to store session.
- ini_set('session.use_cookies', 1);
- // Force cookies for session (phpsessionID forbidden in URL).
- ini_set('session.use_only_cookies', 1);
- // Prevent PHP form using sessionID in URL if cookies are disabled.
- ini_set('session.use_trans_sid', false);
- session_name('shaarli');
- // Start session if needed (Some server auto-start sessions).
- if (session_id() == '') {
- session_start();
- }
- // Regenerate session ID if invalid or not defined in cookie.
- if (isset($_COOKIE['shaarli']) && !is_session_id_valid($_COOKIE['shaarli'])) {
- session_regenerate_id(true);
- $_COOKIE['shaarli'] = session_id();
- }
- $conf = new ConfigManager();
- $conf->setEmpty('general.timezone', date_default_timezone_get());
- $conf->setEmpty('general.title', 'Shared links on '. escape(index_url($_SERVER)));
- RainTPL::$tpl_dir = $conf->get('resource.raintpl_tpl').'/'.$conf->get('resource.theme').'/'; // template directory
- RainTPL::$cache_dir = $conf->get('resource.raintpl_tmp'); // cache directory
- $pluginManager = new PluginManager($conf);
- $pluginManager->load($conf->get('general.enabled_plugins'));
- date_default_timezone_set($conf->get('general.timezone', 'UTC'));
- ob_start(); // Output buffering for the page cache.
- // In case stupid admin has left magic_quotes enabled in php.ini:
- if (get_magic_quotes_gpc())
- {
- function stripslashes_deep($value) { $value = is_array($value) ? array_map('stripslashes_deep', $value) : stripslashes($value); return $value; }
- $_POST = array_map('stripslashes_deep', $_POST);
- $_GET = array_map('stripslashes_deep', $_GET);
- $_COOKIE = array_map('stripslashes_deep', $_COOKIE);
- }
- // Prevent caching on client side or proxy: (yes, it's ugly)
- header("Last-Modified: " . gmdate("D, d M Y H:i:s") . " GMT");
- header("Cache-Control: no-store, no-cache, must-revalidate");
- header("Cache-Control: post-check=0, pre-check=0", false);
- header("Pragma: no-cache");
- if (! is_file($conf->getConfigFileExt())) {
- // Ensure Shaarli has proper access to its resources
- $errors = ApplicationUtils::checkResourcePermissions($conf);
- if ($errors != array()) {
- $message = '<p>Insufficient permissions:</p><ul>';
- foreach ($errors as $error) {
- $message .= '<li>'.$error.'</li>';
- }
- $message .= '</ul>';
- header('Content-Type: text/html; charset=utf-8');
- echo $message;
- exit;
- }
- // Display the installation form if no existing config is found
- install($conf);
- }
- // a token depending of deployment salt, user password, and the current ip
- define('STAY_SIGNED_IN_TOKEN', sha1($conf->get('credentials.hash') . $_SERVER['REMOTE_ADDR'] . $conf->get('credentials.salt')));
- // Sniff browser language and set date format accordingly.
- if (isset($_SERVER['HTTP_ACCEPT_LANGUAGE'])) {
- autoLocale($_SERVER['HTTP_ACCEPT_LANGUAGE']);
- }
- /**
- * Checking session state (i.e. is the user still logged in)
- *
- * @param ConfigManager $conf The configuration manager.
- *
- * @return bool: true if the user is logged in, false otherwise.
- */
- function setup_login_state($conf)
- {
- if ($conf->get('security.open_shaarli')) {
- return true;
- }
- $userIsLoggedIn = false; // By default, we do not consider the user as logged in;
- $loginFailure = false; // If set to true, every attempt to authenticate the user will fail. This indicates that an important condition isn't met.
- if (! $conf->exists('credentials.login')) {
- $userIsLoggedIn = false; // Shaarli is not configured yet.
- $loginFailure = true;
- }
- if (isset($_COOKIE['shaarli_staySignedIn']) &&
- $_COOKIE['shaarli_staySignedIn']===STAY_SIGNED_IN_TOKEN &&
- !$loginFailure)
- {
- fillSessionInfo($conf);
- $userIsLoggedIn = true;
- }
- // If session does not exist on server side, or IP address has changed, or session has expired, logout.
- if (empty($_SESSION['uid'])
- || ($conf->get('security.session_protection_disabled') === false && $_SESSION['ip'] != allIPs())
- || time() >= $_SESSION['expires_on'])
- {
- logout();
- $userIsLoggedIn = false;
- $loginFailure = true;
- }
- if (!empty($_SESSION['longlastingsession'])) {
- $_SESSION['expires_on']=time()+$_SESSION['longlastingsession']; // In case of "Stay signed in" checked.
- }
- else {
- $_SESSION['expires_on']=time()+INACTIVITY_TIMEOUT; // Standard session expiration date.
- }
- if (!$loginFailure) {
- $userIsLoggedIn = true;
- }
- return $userIsLoggedIn;
- }
- $userIsLoggedIn = setup_login_state($conf);
- /**
- * PubSubHubbub protocol support (if enabled) [UNTESTED]
- * (Source: http://aldarone.fr/les-flux-rss-shaarli-et-pubsubhubbub/ )
- *
- * @param ConfigManager $conf Configuration Manager instance.
- */
- function pubsubhub($conf)
- {
- $pshUrl = $conf->get('config.PUBSUBHUB_URL');
- if (!empty($pshUrl))
- {
- include_once './publisher.php';
- $p = new Publisher($pshUrl);
- $topic_url = array (
- index_url($_SERVER).'?do=atom',
- index_url($_SERVER).'?do=rss'
- );
- $p->publish_update($topic_url);
- }
- }
- // ------------------------------------------------------------------------------------------
- // Session management
- // Returns the IP address of the client (Used to prevent session cookie hijacking.)
- function allIPs()
- {
- $ip = $_SERVER['REMOTE_ADDR'];
- // Then we use more HTTP headers to prevent session hijacking from users behind the same proxy.
- if (isset($_SERVER['HTTP_X_FORWARDED_FOR'])) { $ip=$ip.'_'.$_SERVER['HTTP_X_FORWARDED_FOR']; }
- if (isset($_SERVER['HTTP_CLIENT_IP'])) { $ip=$ip.'_'.$_SERVER['HTTP_CLIENT_IP']; }
- return $ip;
- }
- /**
- * Load user session.
- *
- * @param ConfigManager $conf Configuration Manager instance.
- */
- function fillSessionInfo($conf)
- {
- $_SESSION['uid'] = sha1(uniqid('',true).'_'.mt_rand()); // Generate unique random number (different than phpsessionid)
- $_SESSION['ip']=allIPs(); // We store IP address(es) of the client to make sure session is not hijacked.
- $_SESSION['username']= $conf->get('credentials.login');
- $_SESSION['expires_on']=time()+INACTIVITY_TIMEOUT; // Set session expiration.
- }
- /**
- * Check that user/password is correct.
- *
- * @param string $login Username
- * @param string $password User password
- * @param ConfigManager $conf Configuration Manager instance.
- *
- * @return bool: authentication successful or not.
- */
- function check_auth($login, $password, $conf)
- {
- $hash = sha1($password . $login . $conf->get('credentials.salt'));
- if ($login == $conf->get('credentials.login') && $hash == $conf->get('credentials.hash'))
- { // Login/password is correct.
- fillSessionInfo($conf);
- logm($conf->get('resource.log'), $_SERVER['REMOTE_ADDR'], 'Login successful');
- return true;
- }
- logm($conf->get('resource.log'), $_SERVER['REMOTE_ADDR'], 'Login failed for user '.$login);
- return false;
- }
- // Returns true if the user is logged in.
- function isLoggedIn()
- {
- global $userIsLoggedIn;
- return $userIsLoggedIn;
- }
- // Force logout.
- function logout() {
- if (isset($_SESSION)) {
- unset($_SESSION['uid']);
- unset($_SESSION['ip']);
- unset($_SESSION['username']);
- unset($_SESSION['privateonly']);
- }
- setcookie('shaarli_staySignedIn', FALSE, 0, WEB_PATH);
- }
- // ------------------------------------------------------------------------------------------
- // Brute force protection system
- // Several consecutive failed logins will ban the IP address for 30 minutes.
- if (!is_file($conf->get('resource.ban_file', 'data/ipbans.php'))) {
- // FIXME! globals
- file_put_contents(
- $conf->get('resource.ban_file', 'data/ipbans.php'),
- "<?php\n\$GLOBALS['IPBANS']=".var_export(array('FAILURES'=>array(),'BANS'=>array()),true).";\n?>"
- );
- }
- include $conf->get('resource.ban_file', 'data/ipbans.php');
- /**
- * Signal a failed login. Will ban the IP if too many failures:
- *
- * @param ConfigManager $conf Configuration Manager instance.
- */
- function ban_loginFailed($conf)
- {
- $ip = $_SERVER['REMOTE_ADDR'];
- $trusted = $conf->get('security.trusted_proxies', array());
- if (in_array($ip, $trusted)) {
- $ip = getIpAddressFromProxy($_SERVER, $trusted);
- if (!$ip) {
- return;
- }
- }
- $gb = $GLOBALS['IPBANS'];
- if (! isset($gb['FAILURES'][$ip])) {
- $gb['FAILURES'][$ip]=0;
- }
- $gb['FAILURES'][$ip]++;
- if ($gb['FAILURES'][$ip] > ($conf->get('security.ban_after') - 1))
- {
- $gb['BANS'][$ip] = time() + $conf->get('security.ban_after', 1800);
- logm($conf->get('resource.log'), $_SERVER['REMOTE_ADDR'], 'IP address banned from login');
- }
- $GLOBALS['IPBANS'] = $gb;
- file_put_contents(
- $conf->get('resource.ban_file', 'data/ipbans.php'),
- "<?php\n\$GLOBALS['IPBANS']=".var_export($gb,true).";\n?>"
- );
- }
- /**
- * Signals a successful login. Resets failed login counter.
- *
- * @param ConfigManager $conf Configuration Manager instance.
- */
- function ban_loginOk($conf)
- {
- $ip = $_SERVER['REMOTE_ADDR'];
- $gb = $GLOBALS['IPBANS'];
- unset($gb['FAILURES'][$ip]); unset($gb['BANS'][$ip]);
- $GLOBALS['IPBANS'] = $gb;
- file_put_contents(
- $conf->get('resource.ban_file', 'data/ipbans.php'),
- "<?php\n\$GLOBALS['IPBANS']=".var_export($gb,true).";\n?>"
- );
- }
- /**
- * Checks if the user CAN login. If 'true', the user can try to login.
- *
- * @param ConfigManager $conf Configuration Manager instance.
- *
- * @return bool: true if the user is allowed to login.
- */
- function ban_canLogin($conf)
- {
- $ip=$_SERVER["REMOTE_ADDR"]; $gb=$GLOBALS['IPBANS'];
- if (isset($gb['BANS'][$ip]))
- {
- // User is banned. Check if the ban has expired:
- if ($gb['BANS'][$ip]<=time())
- { // Ban expired, user can try to login again.
- logm($conf->get('resource.log'), $_SERVER['REMOTE_ADDR'], 'Ban lifted.');
- unset($gb['FAILURES'][$ip]); unset($gb['BANS'][$ip]);
- file_put_contents(
- $conf->get('resource.ban_file', 'data/ipbans.php'),
- "<?php\n\$GLOBALS['IPBANS']=".var_export($gb,true).";\n?>"
- );
- return true; // Ban has expired, user can login.
- }
- return false; // User is banned.
- }
- return true; // User is not banned.
- }
- // ------------------------------------------------------------------------------------------
- // Process login form: Check if login/password is correct.
- if (isset($_POST['login']))
- {
- if (!ban_canLogin($conf)) die('I said: NO. You are banned for the moment. Go away.');
- if (isset($_POST['password'])
- && tokenOk($_POST['token'])
- && (check_auth($_POST['login'], $_POST['password'], $conf))
- ) { // Login/password is OK.
- ban_loginOk($conf);
- // If user wants to keep the session cookie even after the browser closes:
- if (!empty($_POST['longlastingsession']))
- {
- setcookie('shaarli_staySignedIn', STAY_SIGNED_IN_TOKEN, time()+31536000, WEB_PATH);
- $_SESSION['longlastingsession']=31536000; // (31536000 seconds = 1 year)
- $_SESSION['expires_on']=time()+$_SESSION['longlastingsession']; // Set session expiration on server-side.
- $cookiedir = ''; if(dirname($_SERVER['SCRIPT_NAME'])!='/') $cookiedir=dirname($_SERVER["SCRIPT_NAME"]).'/';
- session_set_cookie_params($_SESSION['longlastingsession'],$cookiedir,$_SERVER['SERVER_NAME']); // Set session cookie expiration on client side
- // Note: Never forget the trailing slash on the cookie path!
- session_regenerate_id(true); // Send cookie with new expiration date to browser.
- }
- else // Standard session expiration (=when browser closes)
- {
- $cookiedir = ''; if(dirname($_SERVER['SCRIPT_NAME'])!='/') $cookiedir=dirname($_SERVER["SCRIPT_NAME"]).'/';
- session_set_cookie_params(0,$cookiedir,$_SERVER['SERVER_NAME']); // 0 means "When browser closes"
- session_regenerate_id(true);
- }
- // Optional redirect after login:
- if (isset($_GET['post'])) {
- $uri = '?post='. urlencode($_GET['post']);
- foreach (array('description', 'source', 'title') as $param) {
- if (!empty($_GET[$param])) {
- $uri .= '&'.$param.'='.urlencode($_GET[$param]);
- }
- }
- header('Location: '. $uri);
- exit;
- }
- if (isset($_GET['edit_link'])) {
- header('Location: ?edit_link='. escape($_GET['edit_link']));
- exit;
- }
- if (isset($_POST['returnurl'])) {
- // Prevent loops over login screen.
- if (strpos($_POST['returnurl'], 'do=login') === false) {
- header('Location: '. generateLocation($_POST['returnurl'], $_SERVER['HTTP_HOST']));
- exit;
- }
- }
- header('Location: ?'); exit;
- }
- else
- {
- ban_loginFailed($conf);
- $redir = '&username='. $_POST['login'];
- if (isset($_GET['post'])) {
- $redir .= '&post=' . urlencode($_GET['post']);
- foreach (array('description', 'source', 'title') as $param) {
- if (!empty($_GET[$param])) {
- $redir .= '&' . $param . '=' . urlencode($_GET[$param]);
- }
- }
- }
- echo '<script>alert("Wrong login/password.");document.location=\'?do=login'.$redir.'\';</script>'; // Redirect to login screen.
- exit;
- }
- }
- // ------------------------------------------------------------------------------------------
- // Misc utility functions:
- // Convert post_max_size/upload_max_filesize (e.g. '16M') parameters to bytes.
- function return_bytes($val)
- {
- $val = trim($val); $last=strtolower($val[strlen($val)-1]);
- switch($last)
- {
- case 'g': $val *= 1024;
- case 'm': $val *= 1024;
- case 'k': $val *= 1024;
- }
- return $val;
- }
- // Try to determine max file size for uploads (POST).
- // Returns an integer (in bytes)
- function getMaxFileSize()
- {
- $size1 = return_bytes(ini_get('post_max_size'));
- $size2 = return_bytes(ini_get('upload_max_filesize'));
- // Return the smaller of two:
- $maxsize = min($size1,$size2);
- // FIXME: Then convert back to readable notations ? (e.g. 2M instead of 2000000)
- return $maxsize;
- }
- // ------------------------------------------------------------------------------------------
- // Token management for XSRF protection
- // Token should be used in any form which acts on data (create,update,delete,import...).
- if (!isset($_SESSION['tokens'])) $_SESSION['tokens']=array(); // Token are attached to the session.
- /**
- * Returns a token.
- *
- * @param ConfigManager $conf Configuration Manager instance.
- *
- * @return string token.
- */
- function getToken($conf)
- {
- $rnd = sha1(uniqid('', true) .'_'. mt_rand() . $conf->get('credentials.salt')); // We generate a random string.
- $_SESSION['tokens'][$rnd]=1; // Store it on the server side.
- return $rnd;
- }
- // Tells if a token is OK. Using this function will destroy the token.
- // true=token is OK.
- function tokenOk($token)
- {
- if (isset($_SESSION['tokens'][$token]))
- {
- unset($_SESSION['tokens'][$token]); // Token is used: destroy it.
- return true; // Token is OK.
- }
- return false; // Wrong token, or already used.
- }
- /**
- * Daily RSS feed: 1 RSS entry per day giving all the links on that day.
- * Gives the last 7 days (which have links).
- * This RSS feed cannot be filtered.
- *
- * @param ConfigManager $conf Configuration Manager instance.
- */
- function showDailyRSS($conf) {
- // Cache system
- $query = $_SERVER['QUERY_STRING'];
- $cache = new CachedPage(
- $conf->get('config.PAGE_CACHE'),
- page_url($_SERVER),
- startsWith($query,'do=dailyrss') && !isLoggedIn()
- );
- $cached = $cache->cachedVersion();
- if (!empty($cached)) {
- echo $cached;
- exit;
- }
- // If cached was not found (or not usable), then read the database and build the response:
- // Read links from database (and filter private links if used it not logged in).
- $LINKSDB = new LinkDB(
- $conf->get('resource.datastore'),
- isLoggedIn(),
- $conf->get('privacy.hide_public_links'),
- $conf->get('redirector.url'),
- $conf->get('redirector.encode_url')
- );
- /* Some Shaarlies may have very few links, so we need to look
- back in time until we have enough days ($nb_of_days).
- */
- $nb_of_days = 7; // We take 7 days.
- $today = date('Ymd');
- $days = array();
- foreach ($LINKSDB as $link) {
- $day = $link['created']->format('Ymd'); // Extract day (without time)
- if (strcmp($day, $today) < 0) {
- if (empty($days[$day])) {
- $days[$day] = array();
- }
- $days[$day][] = $link;
- }
- if (count($days) > $nb_of_days) {
- break; // Have we collected enough days?
- }
- }
- // Build the RSS feed.
- header('Content-Type: application/rss+xml; charset=utf-8');
- $pageaddr = escape(index_url($_SERVER));
- echo '<?xml version="1.0" encoding="UTF-8"?><rss version="2.0">';
- echo '<channel>';
- echo '<title>Daily - '. $conf->get('general.title') . '</title>';
- echo '<link>'. $pageaddr .'</link>';
- echo '<description>Daily shared links</description>';
- echo '<language>en-en</language>';
- echo '<copyright>'. $pageaddr .'</copyright>'. PHP_EOL;
- // For each day.
- foreach ($days as $day => $links) {
- $dayDate = DateTime::createFromFormat(LinkDB::LINK_DATE_FORMAT, $day.'_000000');
- $absurl = escape(index_url($_SERVER).'?do=daily&day='.$day); // Absolute URL of the corresponding "Daily" page.
- // We pre-format some fields for proper output.
- foreach ($links as &$link) {
- $link['formatedDescription'] = format_description($link['description'], $conf->get('redirector.url'));
- $link['thumbnail'] = thumbnail($conf, $link['url']);
- $link['timestamp'] = $link['created']->getTimestamp();
- if (startsWith($link['url'], '?')) {
- $link['url'] = index_url($_SERVER) . $link['url']; // make permalink URL absolute
- }
- }
- // Then build the HTML for this day:
- $tpl = new RainTPL;
- $tpl->assign('title', $conf->get('general.title'));
- $tpl->assign('daydate', $dayDate->getTimestamp());
- $tpl->assign('absurl', $absurl);
- $tpl->assign('links', $links);
- $tpl->assign('rssdate', escape($dayDate->format(DateTime::RSS)));
- $tpl->assign('hide_timestamps', $conf->get('privacy.hide_timestamps', false));
- $html = $tpl->draw('dailyrss', true);
- echo $html . PHP_EOL;
- }
- echo '</channel></rss><!-- Cached version of '. escape(page_url($_SERVER)) .' -->';
- $cache->cache(ob_get_contents());
- ob_end_flush();
- exit;
- }
- /**
- * Show the 'Daily' page.
- *
- * @param PageBuilder $pageBuilder Template engine wrapper.
- * @param LinkDB $LINKSDB LinkDB instance.
- * @param ConfigManager $conf Configuration Manager instance.
- * @param PluginManager $pluginManager Plugin Manager instane.
- */
- function showDaily($pageBuilder, $LINKSDB, $conf, $pluginManager)
- {
- $day=date('Ymd',strtotime('-1 day')); // Yesterday, in format YYYYMMDD.
- if (isset($_GET['day'])) $day=$_GET['day'];
- $days = $LINKSDB->days();
- $i = array_search($day,$days);
- if ($i===false) { $i=count($days)-1; $day=$days[$i]; }
- $previousday='';
- $nextday='';
- if ($i!==false)
- {
- if ($i>=1) $previousday=$days[$i-1];
- if ($i<count($days)-1) $nextday=$days[$i+1];
- }
- try {
- $linksToDisplay = $LINKSDB->filterDay($day);
- } catch (Exception $exc) {
- error_log($exc);
- $linksToDisplay = array();
- }
- // We pre-format some fields for proper output.
- foreach($linksToDisplay as $key=>$link)
- {
- $taglist = explode(' ',$link['tags']);
- uasort($taglist, 'strcasecmp');
- $linksToDisplay[$key]['taglist']=$taglist;
- $linksToDisplay[$key]['formatedDescription'] = format_description($link['description'], $conf->get('redirector.url'));
- $linksToDisplay[$key]['thumbnail'] = thumbnail($conf, $link['url']);
- $linksToDisplay[$key]['timestamp'] = $link['created']->getTimestamp();
- }
- /* We need to spread the articles on 3 columns.
- I did not want to use a JavaScript lib like http://masonry.desandro.com/
- so I manually spread entries with a simple method: I roughly evaluate the
- height of a div according to title and description length.
- */
- $columns=array(array(),array(),array()); // Entries to display, for each column.
- $fill=array(0,0,0); // Rough estimate of columns fill.
- foreach($linksToDisplay as $key=>$link)
- {
- // Roughly estimate length of entry (by counting characters)
- // Title: 30 chars = 1 line. 1 line is 30 pixels height.
- // Description: 836 characters gives roughly 342 pixel height.
- // This is not perfect, but it's usually OK.
- $length=strlen($link['title'])+(342*strlen($link['description']))/836;
- if ($link['thumbnail']) $length +=100; // 1 thumbnails roughly takes 100 pixels height.
- // Then put in column which is the less filled:
- $smallest=min($fill); // find smallest value in array.
- $index=array_search($smallest,$fill); // find index of this smallest value.
- array_push($columns[$index],$link); // Put entry in this column.
- $fill[$index]+=$length;
- }
- $dayDate = DateTime::createFromFormat(LinkDB::LINK_DATE_FORMAT, $day.'_000000');
- $data = array(
- 'linksToDisplay' => $linksToDisplay,
- 'cols' => $columns,
- 'day' => $dayDate->getTimestamp(),
- 'previousday' => $previousday,
- 'nextday' => $nextday,
- );
- $pluginManager->executeHooks('render_daily', $data, array('loggedin' => isLoggedIn()));
- foreach ($data as $key => $value) {
- $pageBuilder->assign($key, $value);
- }
- $pageBuilder->renderPage('daily');
- exit;
- }
- /**
- * Renders the linklist
- *
- * @param pageBuilder $PAGE pageBuilder instance.
- * @param LinkDB $LINKSDB LinkDB instance.
- * @param ConfigManager $conf Configuration Manager instance.
- * @param PluginManager $pluginManager Plugin Manager instance.
- */
- function showLinkList($PAGE, $LINKSDB, $conf, $pluginManager) {
- buildLinkList($PAGE,$LINKSDB, $conf, $pluginManager); // Compute list of links to display
- $PAGE->renderPage('linklist');
- }
- /**
- * Render HTML page (according to URL parameters and user rights)
- *
- * @param ConfigManager $conf Configuration Manager instance.
- * @param PluginManager $pluginManager Plugin Manager instance,
- * @param LinkDB $LINKSDB
- */
- function renderPage($conf, $pluginManager, $LINKSDB)
- {
- $updater = new Updater(
- read_updates_file($conf->get('resource.updates')),
- $LINKSDB,
- $conf,
- isLoggedIn()
- );
- try {
- $newUpdates = $updater->update();
- if (! empty($newUpdates)) {
- write_updates_file(
- $conf->get('resource.updates'),
- $updater->getDoneUpdates()
- );
- }
- }
- catch(Exception $e) {
- die($e->getMessage());
- }
- $PAGE = new PageBuilder($conf);
- $PAGE->assign('linkcount', count($LINKSDB));
- $PAGE->assign('privateLinkcount', count_private($LINKSDB));
- $PAGE->assign('plugin_errors', $pluginManager->getErrors());
- // Determine which page will be rendered.
- $query = (isset($_SERVER['QUERY_STRING'])) ? $_SERVER['QUERY_STRING'] : '';
- $targetPage = Router::findPage($query, $_GET, isLoggedIn());
- // Call plugin hooks for header, footer and includes, specifying which page will be rendered.
- // Then assign generated data to RainTPL.
- $common_hooks = array(
- 'includes',
- 'header',
- 'footer',
- );
- foreach($common_hooks as $name) {
- $plugin_data = array();
- $pluginManager->executeHooks('render_' . $name, $plugin_data,
- array(
- 'target' => $targetPage,
- 'loggedin' => isLoggedIn()
- )
- );
- $PAGE->assign('plugins_' . $name, $plugin_data);
- }
- // -------- Display login form.
- if ($targetPage == Router::$PAGE_LOGIN)
- {
- if ($conf->get('security.open_shaarli')) { header('Location: ?'); exit; } // No need to login for open Shaarli
- if (isset($_GET['username'])) {
- $PAGE->assign('username', escape($_GET['username']));
- }
- $PAGE->assign('returnurl',(isset($_SERVER['HTTP_REFERER']) ? escape($_SERVER['HTTP_REFERER']):''));
- $PAGE->renderPage('loginform');
- exit;
- }
- // -------- User wants to logout.
- if (isset($_SERVER['QUERY_STRING']) && startsWith($_SERVER['QUERY_STRING'], 'do=logout'))
- {
- invalidateCaches($conf->get('resource.page_cache'));
- logout();
- header('Location: ?');
- exit;
- }
- // -------- Picture wall
- if ($targetPage == Router::$PAGE_PICWALL)
- {
- // Optionally filter the results:
- $links = $LINKSDB->filterSearch($_GET);
- $linksToDisplay = array();
- // Get only links which have a thumbnail.
- foreach($links as $link)
- {
- $permalink='?'.$link['shorturl'];
- $thumb=lazyThumbnail($conf, $link['url'],$permalink);
- if ($thumb!='') // Only output links which have a thumbnail.
- {
- $link['thumbnail']=$thumb; // Thumbnail HTML code.
- $linksToDisplay[]=$link; // Add to array.
- }
- }
- $data = array(
- 'linksToDisplay' => $linksToDisplay,
- );
- $pluginManager->executeHooks('render_picwall', $data, array('loggedin' => isLoggedIn()));
- foreach ($data as $key => $value) {
- $PAGE->assign($key, $value);
- }
- $PAGE->renderPage('picwall');
- exit;
- }
- // -------- Tag cloud
- if ($targetPage == Router::$PAGE_TAGCLOUD)
- {
- $tags= $LINKSDB->allTags();
- // We sort tags alphabetically, then choose a font size according to count.
- // First, find max value.
- $maxcount = 0;
- foreach ($tags as $value) {
- $maxcount = max($maxcount, $value);
- }
- // Sort tags alphabetically: case insensitive, support locale if available.
- uksort($tags, function($a, $b) {
- // Collator is part of PHP intl.
- if (class_exists('Collator')) {
- $c = new Collator(setlocale(LC_COLLATE, 0));
- if (!intl_is_failure(intl_get_error_code())) {
- return $c->compare($a, $b);
- }
- }
- return strcasecmp($a, $b);
- });
- $tagList = array();
- foreach($tags as $key => $value) {
- // Tag font size scaling:
- // default 15 and 30 logarithm bases affect scaling,
- // 22 and 6 are arbitrary font sizes for max and min sizes.
- $size = log($value, 15) / log($maxcount, 30) * 2.2 + 0.8;
- $tagList[$key] = array(
- 'count' => $value,
- 'size' => number_format($size, 2, '.', ''),
- );
- }
- $data = array(
- 'tags' => $tagList,
- );
- $pluginManager->executeHooks('render_tagcloud', $data, array('loggedin' => isLoggedIn()));
- foreach ($data as $key => $value) {
- $PAGE->assign($key, $value);
- }
- $PAGE->renderPage('tagcloud');
- exit;
- }
- // Daily page.
- if ($targetPage == Router::$PAGE_DAILY) {
- showDaily($PAGE, $LINKSDB, $conf, $pluginManager);
- }
- // ATOM and RSS feed.
- if ($targetPage == Router::$PAGE_FEED_ATOM || $targetPage == Router::$PAGE_FEED_RSS) {
- $feedType = $targetPage == Router::$PAGE_FEED_RSS ? FeedBuilder::$FEED_RSS : FeedBuilder::$FEED_ATOM;
- header('Content-Type: application/'. $feedType .'+xml; charset=utf-8');
- // Cache system
- $query = $_SERVER['QUERY_STRING'];
- $cache = new CachedPage(
- $conf->get('resource.page_cache'),
- page_url($_SERVER),
- startsWith($query,'do='. $targetPage) && !isLoggedIn()
- );
- $cached = $cache->cachedVersion();
- if (!empty($cached)) {
- echo $cached;
- exit;
- }
- // Generate data.
- $feedGenerator = new FeedBuilder($LINKSDB, $feedType, $_SERVER, $_GET, isLoggedIn());
- $feedGenerator->setLocale(strtolower(setlocale(LC_COLLATE, 0)));
- $feedGenerator->setHideDates($conf->get('privacy.hide_timestamps') && !isLoggedIn());
- $feedGenerator->setUsePermalinks(isset($_GET['permalinks']) || !$conf->get('feed.rss_permalinks'));
- $data = $feedGenerator->buildData();
- // Process plugin hook.
- $pluginManager->executeHooks('render_feed', $data, array(
- 'loggedin' => isLoggedIn(),
- 'target' => $targetPage,
- ));
- // Render the template.
- $PAGE->assignAll($data);
- $PAGE->renderPage('feed.'. $feedType);
- $cache->cache(ob_get_contents());
- ob_end_flush();
- exit;
- }
- // Display opensearch plugin (XML)
- if ($targetPage == Router::$PAGE_OPENSEARCH) {
- header('Content-Type: application/xml; charset=utf-8');
- $PAGE->assign('serverurl', index_url($_SERVER));
- $PAGE->renderPage('opensearch');
- exit;
- }
- // -------- User clicks on a tag in a link: The tag is added to the list of searched tags (searchtags=...)
- if (isset($_GET['addtag']))
- {
- // Get previous URL (http_referer) and add the tag to the searchtags parameters in query.
- if (empty($_SERVER['HTTP_REFERER'])) { header('Location: ?searchtags='.urlencode($_GET['addtag'])); exit; } // In case browser does not send HTTP_REFERER
- parse_str(parse_url($_SERVER['HTTP_REFERER'],PHP_URL_QUERY), $params);
- // Prevent redirection loop
- if (isset($params['addtag'])) {
- unset($params['addtag']);
- }
- // Check if this tag is already in the search query and ignore it if it is.
- // Each tag is always separated by a space
- if (isset($params['searchtags'])) {
- $current_tags = explode(' ', $params['searchtags']);
- } else {
- $current_tags = array();
- }
- $addtag = true;
- foreach ($current_tags as $value) {
- if ($value === $_GET['addtag']) {
- $addtag = false;
- break;
- }
- }
- // Append the tag if necessary
- if (empty($params['searchtags'])) {
- $params['searchtags'] = trim($_GET['addtag']);
- }
- else if ($addtag) {
- $params['searchtags'] = trim($params['searchtags']).' '.trim($_GET['addtag']);
- }
- unset($params['page']); // We also remove page (keeping the same page has no sense, since the results are different)
- header('Location: ?'.http_build_query($params));
- exit;
- }
- // -------- User clicks on a tag in result count: Remove the tag from the list of searched tags (searchtags=...)
- if (isset($_GET['removetag'])) {
- // Get previous URL (http_referer) and remove the tag from the searchtags parameters in query.
- if (empty($_SERVER['HTTP_REFERER'])) {
- header('Location: ?');
- exit;
- }
- // In case browser does not send HTTP_REFERER
- parse_str(parse_url($_SERVER['HTTP_REFERER'], PHP_URL_QUERY), $params);
- // Prevent redirection loop
- if (isset($params['removetag'])) {
- unset($params['removetag']);
- }
- if (isset($params['searchtags'])) {
- $tags = explode(' ', $params['searchtags']);
- // Remove value from array $tags.
- $tags = array_diff($tags, array($_GET['removetag']));
- $params['searchtags'] = implode(' ',$tags);
- if (empty($params['searchtags'])) {
- unset($params['searchtags']);
- }
- unset($params['page']); // We also remove page (keeping the same page has no sense, since the results are different)
- }
- header('Location: ?'.http_build_query($params));
- exit;
- }
- // -------- User wants to change the number of links per page (linksperpage=...)
- if (isset($_GET['linksperpage'])) {
- if (is_numeric($_GET['linksperpage'])) {
- $_SESSION['LINKS_PER_PAGE']=abs(intval($_GET['linksperpage']));
- }
- header('Location: '. generateLocation($_SERVER['HTTP_REFERER'], $_SERVER['HTTP_HOST'], array('linksperpage')));
- exit;
- }
- // -------- User wants to see only private links (toggle)
- if (isset($_GET['privateonly'])) {
- if (empty($_SESSION['privateonly'])) {
- $_SESSION['privateonly'] = 1; // See only private links
- } else {
- unset($_SESSION['privateonly']); // See all links
- }
- header('Location: '. generateLocation($_SERVER['HTTP_REFERER'], $_SERVER['HTTP_HOST'], array('privateonly')));
- exit;
- }
- // -------- Handle other actions allowed for non-logged in users:
- if (!isLoggedIn())
- {
- // User tries to post new link but is not logged in:
- // Show login screen, then redirect to ?post=...
- if (isset($_GET['post']))
- {
- header('Location: ?do=login&post='.urlencode($_GET['post']).(!empty($_GET['title'])?'&title='.urlencode($_GET['title']):'').(!empty($_GET['description'])?'&description='.urlencode($_GET['description']):'').(!empty($_GET['source'])?'&source='.urlencode($_GET['source']):'')); // Redirect to login page, then back to post link.
- exit;
- }
- showLinkList($PAGE, $LINKSDB, $conf, $pluginManager);
- if (isset($_GET['edit_link'])) {
- header('Location: ?do=login&edit_link='. escape($_GET['edit_link']));
- exit;
- }
- exit; // Never remove this one! All operations below are reserved for logged in user.
- }
- // -------- All other functions are reserved for the registered user:
- // -------- Display the Tools menu if requested (import/export/bookmarklet...)
- if ($targetPage == Router::$PAGE_TOOLS)
- {
- $data = array(
- 'pageabsaddr' => index_url($_SERVER),
- 'sslenabled' => !empty($_SERVER['HTTPS'])
- );
- $pluginManager->executeHooks('render_tools', $data);
- foreach ($data as $key => $value) {
- $PAGE->assign($key, $value);
- }
- $PAGE->renderPage('tools');
- exit;
- }
- // -------- User wants to change his/her password.
- if ($targetPage == Router::$PAGE_CHANGEPASSWORD)
- {
- if ($conf->get('security.open_shaarli')) {
- die('You are not supposed to change a password on an Open Shaarli.');
- }
- if (!empty($_POST['setpassword']) && !empty($_POST['oldpassword']))
- {
- if (!tokenOk($_POST['token'])) die('Wrong token.'); // Go away!
- // Make sure old password is correct.
- $oldhash = sha1($_POST['oldpassword'].$conf->get('credentials.login').$conf->get('credentials.salt'));
- if ($oldhash!= $conf->get('credentials.hash')) { echo '<script>alert("The old password is not correct.");document.location=\'?do=changepasswd\';</script>'; exit; }
- // Save new password
- // Salt renders rainbow-tables attacks useless.
- $conf->set('credentials.salt', sha1(uniqid('', true) .'_'. mt_rand()));
- $conf->set('credentials.hash', sha1($_POST['setpassword'] . $conf->get('credentials.login') . $conf->get('credentials.salt')));
- try {
- $conf->write(isLoggedIn());
- }
- catch(Exception $e) {
- error_log(
- 'ERROR while writing config file after changing password.' . PHP_EOL .
- $e->getMessage()
- );
- // TODO: do not handle exceptions/errors in JS.
- echo '<script>alert("'. $e->getMessage() .'");document.location=\'?do=tools\';</script>';
- exit;
- }
- echo '<script>alert("Your password has been changed.");document.location=\'?do=tools\';</script>';
- exit;
- }
- else // show the change password form.
- {
- $PAGE->renderPage('changepassword');
- exit;
- }
- }
- // -------- User wants to change configuration
- if ($targetPage == Router::$PAGE_CONFIGURE)
- {
- if (!empty($_POST['title']) )
- {
- if (!tokenOk($_POST['token'])) {
- die('Wrong token.'); // Go away!
- }
- $tz = 'UTC';
- if (!empty($_POST['continent']) && !empty($_POST['city'])
- && isTimeZoneValid($_POST['continent'], $_POST['city'])
- ) {
- $tz = $_POST['continent'] . '/' . $_POST['city'];
- }
- $conf->set('general.timezone', $tz);
- $conf->set('general.title', escape($_POST['title']));
- $conf->set('general.header_link', escape($_POST['titleLink']));
- $conf->set('resource.theme', escape($_POST['theme']));
- $conf->set('redirector.url', escape($_POST['redirector']));
- $conf->set('security.session_protection_disabled', !empty($_POST['disablesessionprotection']));
- $conf->set('privacy.default_private_links', !empty($_POST['privateLinkByDefault']));
- $conf->set('feed.rss_permalinks', !empty($_POST['enableRssPermalinks']));
- $conf->set('updates.check_updates', !empty($_POST['updateCheck']));
- $conf->set('privacy.hide_public_links', !empty($_POST['hidePublicLinks']));
- $conf->set('api.enabled', !empty($_POST['apiEnabled']));
- $conf->set('api.secret', escape($_POST['apiSecret']));
- try {
- $conf->write(isLoggedIn());
- invalidateCaches($conf->get('resource.page_cache'));
- }
- catch(Exception $e) {
- error_log(
- 'ERROR while writing config file after configuration update.' . PHP_EOL .
- $e->getMessage()
- );
- // TODO: do not handle exceptions/errors in JS.
- echo '<script>alert("'. $e->getMessage() .'");document.location=\'?do=configure\';</script>';
- exit;
- }
- echo '<script>alert("Configuration was saved.");document.location=\'?do=configure\';</script>';
- exit;
- }
- else // Show the configuration form.
- {
- $PAGE->assign('title', $conf->get('general.title'));
- $PAGE->assign('theme', $conf->get('resource.theme'));
- $PAGE->assign('theme_available', ThemeUtils::getThemes($conf->get('resource.raintpl_tpl')));
- $PAGE->assign('redirector', $conf->get('redirector.url'));
- list($timezone_form, $timezone_js) = generateTimeZoneForm($conf->get('general.timezone'));
- $PAGE->assign('timezone_form', $timezone_form);
- $PAGE->assign('timezone_js',$timezone_js);
- $PAGE->assign('private_links_default', $conf->get('privacy.default_private_links', false));
- $PAGE->assign('session_protection_disabled', $conf->get('security.session_protection_disabled', false));
- $PAGE->assign('enable_rss_permalinks', $conf->get('feed.rss_permalinks', false));
- $PAGE->assign('enable_update_check', $conf->get('updates.check_updates', true));
- $PAGE->assign('hide_public_links', $conf->get('privacy.hide_public_links', false));
- $PAGE->assign('api_enabled', $conf->get('api.enabled', true));
- $PAGE->assign('api_secret', $conf->get('api.secret'));
- $PAGE->renderPage('configure');
- exit;
- }
- }
- // -------- User wants to rename a tag or delete it
- if ($targetPage == Router::$PAGE_CHANGETAG)
- {
- if (empty($_POST['fromtag']) || (empty($_POST['totag']) && isset($_POST['renametag']))) {
- $PAGE->assign('tags', $LINKSDB->allTags());
- $PAGE->renderPage('changetag');
- exit;
- }
- if (!tokenOk($_POST['token'])) {
- die('Wrong token.');
- }
- // Delete a tag:
- if (isset($_POST['deletetag']) && !empty($_POST['fromtag'])) {
- $needle = trim($_POST['fromtag']);
- // True for case-sensitive tag search.
- $linksToAlter = $LINKSDB->filterSearch(array('searchtags' => $needle), true);
- foreach($linksToAlter as $key=>$value)
- {
- $tags = explode(' ',trim($value['tags']));
- unset($tags[array_search($needle,$tags)]); // Remove tag.
- $value['tags']=trim(implode(' ',$tags));
- $LINKSDB[$key]=$value;
- }
- $LINKSDB->save($conf->get('resource.page_cache'));
- echo '<script>alert("Tag was removed from '.count($linksToAlter).' links.");document.location=\'?\';</script>';
- exit;
- }
- // Rename a tag:
- if (isset($_POST['renametag']) && !empty($_POST['fromtag']) && !empty($_POST['totag'])) {
- $needle = trim($_POST['fromtag']);
- // True for case-sensitive tag search.
- $linksToAlter = $LINKSDB->filterSearch(array('searchtags' => $needle), true);
- foreach($linksToAlter as $key=>$value)
- {
- $tags = explode(' ',trim($value['tags']));
- $tags[array_search($needle,$tags)] = trim($_POST['totag']); // Replace tags value.
- $value['tags']=trim(implode(' ',$tags));
- $LINKSDB[$key]=$value;
- }
- $LINKSDB->save($conf->get('resource.page_cache')); // Save to disk.
- echo '<script>alert("Tag was renamed in '.count($linksToAlter).' links.");document.location=\'?searchtags='.urlencode($_POST['totag']).'\';</script>';
- exit;
- }
- }
- // -------- User wants to add a link without using the bookmarklet: Show form.
- if ($targetPage == Router::$PAGE_ADDLINK)
- {
- $PAGE->renderPage('addlink');
- exit;
- }
- // -------- User clicked the "Save" button when editing a link: Save link to database.
- if (isset($_POST['save_edit']))
- {
- // Go away!
- if (! tokenOk($_POST['token'])) {
- die('Wrong token.');
- }
- // lf_id should only be present if the link exists.
- $id = !empty($_POST['lf_id']) ? intval(escape($_POST['lf_id'])) : $LINKSDB->getNextId();
- // Linkdate is kept here to:
- // - use the same permalink for notes as they're displayed when creating them
- // - let users hack creation date of their posts
- // See: https://github.com/shaarli/Shaarli/wiki/Datastore-hacks#changing-the-timestamp-for-a-link
- $linkdate = escape($_POST['lf_linkdate']);
- if (isset($LINKSDB[$id])) {
- // Edit
- $created = DateTime::createFromFormat(LinkDB::LINK_DATE_FORMAT, $linkdate);
- $updated = new DateTime();
- $shortUrl = $LINKSDB[$id]['shorturl'];
- } else {
- // New link
- $created = DateTime::createFromFormat(LinkDB::LINK_DATE_FORMAT, $linkdate);
- $updated = null;
- $shortUrl = link_small_hash($created, $id);
- }
- // Remove multiple spaces.
- $tags = trim(preg_replace('/\s\s+/', ' ', $_POST['lf_tags']));
- // Remove first '-' char in tags.
- $tags = preg_replace('/(^| )\-/', '$1', $tags);
- // Remove duplicates.
- $tags = implode(' ', array_unique(explode(' ', $tags)));
- $url = trim($_POST['lf_url']);
- if (! startsWith($url, 'http:') && ! startsWith($url, 'https:')
- && ! startsWith($url, 'ftp:') && ! startsWith($url, 'magnet:')
- && ! startsWith($url, '?') && ! startsWith($url, 'javascript:')
- ) {
- $url = 'http://' . $url;
- }
- $link = array(
- 'id' => $id,
- 'title' => trim($_POST['lf_title']),
- 'url' => $url,
- 'description' => $_POST['lf_description'],
- 'private' => (isset($_POST['lf_private']) ? 1 : 0),
- 'created' => $created,
- 'updated' => $updated,
- 'tags' => str_replace(',', ' ', $tags),
- 'shorturl' => $shortUrl,
- );
- // If title is empty, use the URL as title.
- if ($link['title'] == '') {
- $link['title'] = $link['url'];
- }
- $pluginManager->executeHooks('save_link', $link);
- $LINKSDB[$id] = $link;
- $LINKSDB->save($conf->get('resource.page_cache'));
- // If we are called from the bookmarklet, we must close the popup:
- if (isset($_GET['source']) && ($_GET['source']=='bookmarklet' || $_GET['source']=='firefoxsocialapi')) {
- echo '<script>self.close();</script>';
- exit;
- }
- $returnurl = !empty($_POST['returnurl']) ? $_POST['returnurl'] : '?';
- $location = generateLocation($returnurl, $_SERVER['HTTP_HOST'], array('addlink', 'post', 'edit_link'));
- // Scroll to the link which has been edited.
- $location .= '#' . $link['shorturl'];
- // After saving the link, redirect to the page the user was on.
- header('Location: '. $location);
- exit;
- }
- // -------- User clicked the "Cancel" button when editing a link.
- if (isset($_POST['cancel_edit']))
- {
- // If we are called from the bookmarklet, we must close the popup:
- if (isset($_GET['source']) && ($_GET['source']=='bookmarklet' || $_GET['source']=='firefoxsocialapi')) { echo '<script>self.close();</script>'; exit; }
- $link = $LINKSDB[(int) escape($_POST['lf_id'])];
- $returnurl = ( isset($_POST['returnurl']) ? $_POST['returnurl'] : '?' );
- // Scroll to the link which has been edited.
- $returnurl .= '#'. $link['shorturl'];
- $returnurl = generateLocation($returnurl, $_SERVER['HTTP_HOST'], array('addlink', 'post', 'edit_link'));
- header('Location: '.$returnurl); // After canceling, redirect to the page the user was on.
- exit;
- }
- // -------- User clicked the "Delete" button when editing a link: Delete link from database.
- if ($targetPage == Router::$PAGE_DELETELINK)
- {
- // We do not need to ask for confirmation:
- // - confirmation is handled by JavaScript
- // - we are protected from XSRF by the token.
- if (! tokenOk($_GET['token'])) {
- die('Wrong token.');
- }
- $id = intval(escape($_GET['lf_linkdate']));
- $link = $LINKSDB[$id];
- $pluginManager->executeHooks('delete_link', $link);
- unset($LINKSDB[$id]);
- $LINKSDB->save($conf->get('resource.page_cache')); // save to disk
- // If we are called from the bookmarklet, we must close the popup:
- if (isset($_GET['source']) && ($_GET['source']=='bookmarklet' || $_GET['source']=='firefoxsocialapi')) { echo '<script>self.close();</script>'; exit; }
- // Pick where we're going to redirect
- // =============================================================
- // Basically, we can't redirect to where we were previously if it was a permalink
- // or an edit_link, because it would 404.
- // Cases:
- // - / : nothing in $_GET, redirect to self
- // - /?page : redirect to self
- // - /?searchterm : redirect to self (there might be other links)
- // - /?searchtags : redirect to self
- // - /permalink : redirect to / (the link does not exist anymore)
- // - /?edit_link : redirect to / (the link does not exist anymore)
- // PHP treats the permalink as a $_GET variable, so we need to check if every condition for self
- // redirect is not satisfied, and only then redirect to /
- $location = "?";
- // Self redirection
- if (count($_GET) == 0
- || isset($_GET['page'])
- || isset($_GET['searchterm'])
- || isset($_GET['searchtags'])
- ) {
- if (isset($_POST['returnurl'])) {
- $location = $_POST['returnurl']; // Handle redirects given by the form
- } else {
- $location = generateLocation($_SERVER['HTTP_REFERER'], $_SERVER['HTTP_HOST'], array('delete_link'));
- }
- }
- header('Location: ' . $location); // After deleting the link, redirect to appropriate location
- exit;
- }
- // -------- User clicked the "EDIT" button on a link: Display link edit form.
- if (isset($_GET['edit_link']))
- {
- $id = (int) escape($_GET['edit_link']);
- $link = $LINKSDB[$id]; // Read database
- if (!$link) { header('Location: ?'); exit; } // Link not found in database.
- $link['linkdate'] = $link['created']->format(LinkDB::LINK_DATE_FORMAT);
- $data = array(
- 'link' => $link,
- 'link_is_new' => false,
- 'http_referer' => (isset($_SERVER['HTTP_REFERER']) ? escape($_SERVER['HTTP_REFERER']) : ''),
- 'tags' => $LINKSDB->allTags(),
- );
- $pluginManager->executeHooks('render_editlink', $data);
- foreach ($data as $key => $value) {
- $PAGE->assign($key, $value);
- }
- $PAGE->renderPage('editlink');
- exit;
- }
- // -------- User want to post a new link: Display link edit form.
- if (isset($_GET['post'])) {
- $url = cleanup_url($_GET['post']);
- $link_is_new = false;
- // Check if URL is not already in database (in this case, we will edit the existing link)
- $link = $LINKSDB->getLinkFromUrl($url);
- if (! $link)
- {
- $link_is_new = true;
- $linkdate = strval(date(LinkDB::LINK_DATE_FORMAT));
- // Get title if it was provided in URL (by the bookmarklet).
- $title = empty($_GET['title']) ? '' : escape($_GET['title']);
- // Get description if it was provided in URL (by the bookmarklet). [Bronco added that]
- $description = empty($_GET['description']) ? '' : escape($_GET['description']);
- $tags = empty($_GET['tags']) ? '' : escape($_GET['tags']);
- $private = !empty($_GET['private']) && $_GET['private'] === "1" ? 1 : 0;
- // If this is an HTTP(S) link, we try go get the page to extract the title (otherwise we will to straight to the edit form.)
- if (empty($title) && strpos(get_url_scheme($url), 'http') !== false) {
- // Short timeout to keep the application responsive
- list($headers, $content) = get_http_response($url, 4);
- if (strpos($headers[0], '200 OK') !== false) {
- // Retrieve charset.
- $charset = get_charset($headers, $content);
- // Extract title.
- $title = html_extract_title($content);
- // Re-encode title in utf-8 if necessary.
- if (! empty($title) && strtolower($charset) != 'utf-8') {
- $title = mb_convert_encoding($title, 'utf-8', $charset);
- }
- }
- }
- if ($url == '') {
- $url = '?' . smallHash($linkdate . $LINKSDB->getNextId());
- $title = 'Note: ';
- }
- $url = escape($url);
- $title = escape($title);
- $link = array(
- 'linkdate' => $linkdate,
- 'title' => $title,
- 'url' => $url,
- 'description' => $description,
- 'tags' => $tags,
- 'private' => $private
- );
- } else {
- $link['linkdate'] = $link['created']->format(LinkDB::LINK_DATE_FORMAT);
- }
- $data = array(
- 'link' => $link,
- 'link_is_new' => $link_is_new,
- 'http_referer' => (isset($_SERVER['HTTP_REFERER']) ? escape($_SERVER['HTTP_REFERER']) : ''),
- 'source' => (isset($_GET['source']) ? $_GET['source'] : ''),
- 'tags' => $LINKSDB->allTags(),
- 'default_private_links' => $conf->get('privacy.default_private_links', false),
- );
- $pluginManager->executeHooks('render_editlink', $data);
- foreach ($data as $key => $value) {
- $PAGE->assign($key, $value);
- }
- $PAGE->renderPage('editlink');
- exit;
- }
- if ($targetPage == Router::$PAGE_EXPORT) {
- // Export links as a Netscape Bookmarks file
- if (empty($_GET['selection'])) {
- $PAGE->renderPage('export');
- exit;
- }
- // export as bookmarks_(all|private|public)_YYYYmmdd_HHMMSS.html
- $selection = $_GET['selection'];
- if (isset($_GET['prepend_note_url'])) {
- $prependNoteUrl = $_GET['prepend_note_url'];
- } else {
- $prependNoteUrl = false;
- }
- try {
- $PAGE->assign(
- 'links',
- NetscapeBookmarkUtils::filterAndFormat(
- $LINKSDB,
- $selection,
- $prependNoteUrl,
- index_url($_SERVER)
- )
- );
- } catch (Exception $exc) {
- header('Content-Type: text/plain; charset=utf-8');
- echo $exc->getMessage();
- exit;
- }
- $now = new DateTime();
- header('Content-Type: text/html; charset=utf-8');
- header(
- 'Content-disposition: attachment; filename=bookmarks_'
- .$selection.'_'.$now->format(LinkDB::LINK_DATE_FORMAT).'.html'
- );
- $PAGE->assign('date', $now->format(DateTime::RFC822));
- $PAGE->assign('eol', PHP_EOL);
- $PAGE->assign('selection', $selection);
- $PAGE->renderPage('export.bookmarks');
- exit;
- }
- if ($targetPage == Router::$PAGE_IMPORT) {
- // Upload a Netscape bookmark dump to import its contents
- if (! isset($_POST['token']) || ! isset($_FILES['filetoupload'])) {
- // Show import dialog
- $PAGE->assign('maxfilesize', getMaxFileSize());
- $PAGE->renderPage('import');
- exit;
- }
- // Import bookmarks from an uploaded file
- if (isset($_FILES['filetoupload']['size']) && $_FILES['filetoupload']['size'] == 0) {
- // The file is too big or some form field may be missing.
- echo '<script>alert("The file you are trying to upload is probably'
- .' bigger than what this webserver can accept ('
- .getMaxFileSize().' bytes).'
- .' Please upload in smaller chunks.");document.location=\'?do='
- .Router::$PAGE_IMPORT .'\';</script>';
- exit;
- }
- if (! tokenOk($_POST['token'])) {
- die('Wrong token.');
- }
- $status = NetscapeBookmarkUtils::import(
- $_POST,
- $_FILES,
- $LINKSDB,
- $conf->get('resource.page_cache')
- );
- echo '<script>alert("'.$status.'");document.location=\'?do='
- .Router::$PAGE_IMPORT .'\';</script>';
- exit;
- }
- // Plugin administration page
- if ($targetPage == Router::$PAGE_PLUGINSADMIN) {
- $pluginMeta = $pluginManager->getPluginsMeta();
- // Split plugins into 2 arrays: ordered enabled plugins and disabled.
- $enabledPlugins = array_filter($pluginMeta, function($v) { return $v['order'] !== false; });
- // Load parameters.
- $enabledPlugins = load_plugin_parameter_values($enabledPlugins, $conf->get('plugins', array()));
- uasort(
- $enabledPlugins,
- function($a, $b) { return $a['order'] - $b['order']; }
- );
- $disabledPlugins = array_filter($pluginMeta, function($v) { return $v['order'] === false; });
- $PAGE->assign('enabledPlugins', $enabledPlugins);
- $PAGE->assign('disabledPlugins', $disabledPlugins);
- $PAGE->renderPage('pluginsadmin');
- exit;
- }
- // Plugin administration form action
- if ($targetPage == Router::$PAGE_SAVE_PLUGINSADMIN) {
- try {
- if (isset($_POST['parameters_form'])) {
- unset($_POST['parameters_form']);
- foreach ($_POST as $param => $value) {
- $conf->set('plugins.'. $param, escape($value));
- }
- }
- else {
- $conf->set('general.enabled_plugins', save_plugin_config($_POST));
- }
- $conf->write(isLoggedIn());
- }
- catch (Exception $e) {
- error_log(
- 'ERROR while saving plugin configuration:.' . PHP_EOL .
- $e->getMessage()
- );
- // TODO: do not handle exceptions/errors in JS.
- echo '<script>alert("'. $e->getMessage() .'");document.location=\'?do='. Router::$PAGE_PLUGINSADMIN .'\';</script>';
- exit;
- }
- header('Location: ?do='. Router::$PAGE_PLUGINSADMIN);
- exit;
- }
- // -------- Otherwise, simply display search form and links:
- showLinkList($PAGE, $LINKSDB, $conf, $pluginManager);
- exit;
- }
- /**
- * Template for the list of links (<div id="linklist">)
- * This function fills all the necessary fields in the $PAGE for the template 'linklist.html'
- *
- * @param pageBuilder $PAGE pageBuilder instance.
- * @param LinkDB $LINKSDB LinkDB instance.
- * @param ConfigManager $conf Configuration Manager instance.
- * @param PluginManager $pluginManager Plugin Manager instance.
- */
- function buildLinkList($PAGE,$LINKSDB, $conf, $pluginManager)
- {
- // Used in templates
- $searchtags = !empty($_GET['searchtags']) ? escape(normalize_spaces($_GET['searchtags'])) : '';
- $searchterm = !empty($_GET['searchterm']) ? escape(normalize_spaces($_GET['searchterm'])) : '';
- // Smallhash filter
- if (! empty($_SERVER['QUERY_STRING'])
- && preg_match('/^[a-zA-Z0-9-_@]{6}($|&|#)/', $_SERVER['QUERY_STRING'])) {
- try {
- $linksToDisplay = $LINKSDB->filterHash($_SERVER['QUERY_STRING']);
- } catch (LinkNotFoundException $e) {
- $PAGE->render404($e->getMessage());
- exit;
- }
- } else {
- // Filter links according search parameters.
- $privateonly = !empty($_SESSION['privateonly']);
- $linksToDisplay = $LINKSDB->filterSearch($_GET, false, $privateonly);
- }
- // ---- Handle paging.
- $keys = array();
- foreach ($linksToDisplay as $key => $value) {
- $keys[] = $key;
- }
- // Select articles according to paging.
- $pagecount = ceil(count($keys) / $_SESSION['LINKS_PER_PAGE']);
- $pagecount = $pagecount == 0 ? 1 : $pagecount;
- $page= empty($_GET['page']) ? 1 : intval($_GET['page']);
- $page = $page < 1 ? 1 : $page;
- $page = $page > $pagecount ? $pagecount : $page;
- // Start index.
- $i = ($page-1) * $_SESSION['LINKS_PER_PAGE'];
- $end = $i + $_SESSION['LINKS_PER_PAGE'];
- $linkDisp = array();
- while ($i<$end && $i<count($keys))
- {
- $link = $linksToDisplay[$keys[$i]];
- $link['description'] = format_description($link['description'], $conf->get('redirector.url'));
- $classLi = ($i % 2) != 0 ? '' : 'publicLinkHightLight';
- $link['class'] = $link['private'] == 0 ? $classLi : 'private';
- $link['timestamp'] = $link['created']->getTimestamp();
- if (! empty($link['updated'])) {
- $link['updated_timestamp'] = $link['updated']->getTimestamp();
- } else {
- $link['updated_timestamp'] = '';
- }
- $taglist = preg_split('/\s+/', $link['tags'], -1, PREG_SPLIT_NO_EMPTY);
- uasort($taglist, 'strcasecmp');
- $link['taglist'] = $taglist;
- // Check for both signs of a note: starting with ? and 7 chars long.
- if ($link['url'][0] === '?' &&
- strlen($link['url']) === 7) {
- $link['url'] = index_url($_SERVER) . $link['url'];
- }
- $linkDisp[$keys[$i]] = $link;
- $i++;
- }
- // Compute paging navigation
- $searchtagsUrl = empty($searchtags) ? '' : '&searchtags=' . urlencode($searchtags);
- $searchtermUrl = empty($searchterm) ? '' : '&searchterm=' . urlencode($searchterm);
- $previous_page_url = '';
- if ($i != count($keys)) {
- $previous_page_url = '?page=' . ($page+1) . $searchtermUrl . $searchtagsUrl;
- }
- $next_page_url='';
- if ($page>1) {
- $next_page_url = '?page=' . ($page-1) . $searchtermUrl . $searchtagsUrl;
- }
- // Fill all template fields.
- $data = array(
- 'previous_page_url' => $previous_page_url,
- 'next_page_url' => $next_page_url,
- 'page_current' => $page,
- 'page_max' => $pagecount,
- 'result_count' => count($linksToDisplay),
- 'search_term' => $searchterm,
- 'search_tags' => $searchtags,
- 'redirector' => $conf->get('redirector.url'), // Optional redirector URL.
- 'links' => $linkDisp,
- 'tags' => $LINKSDB->allTags(),
- );
- // If there is only a single link, we change on-the-fly the title of the page.
- if (count($linksToDisplay) == 1) {
- $data['pagetitle'] = $linksToDisplay[$keys[0]]['title'] .' - '. $conf->get('general.title');
- }
- $pluginManager->executeHooks('render_linklist', $data, array('loggedin' => isLoggedIn()));
- foreach ($data as $key => $value) {
- $PAGE->assign($key, $value);
- }
- return;
- }
- /**
- * Compute the thumbnail for a link.
- *
- * With a link to the original URL.
- * Understands various services (youtube.com...)
- * Input: $url = URL for which the thumbnail must be found.
- * $href = if provided, this URL will be followed instead of $url
- * Returns an associative array with thumbnail attributes (src,href,width,height,style,alt)
- * Some of them may be missing.
- * Return an empty array if no thumbnail available.
- *
- * @param ConfigManager $conf Configuration Manager instance.
- * @param string $url
- * @param string|bool $href
- *
- * @return array
- */
- function computeThumbnail($conf, $url, $href = false)
- {
- if (!$conf->get('thumbnail.enable_thumbnails')) return array();
- if ($href==false) $href=$url;
- // For most hosts, the URL of the thumbnail can be easily deduced from the URL of the link.
- // (e.g. http://www.youtube.com/watch?v=spVypYk4kto ---> http://img.youtube.com/vi/spVypYk4kto/default.jpg )
- // ^^^^^^^^^^^ ^^^^^^^^^^^
- $domain = parse_url($url,PHP_URL_HOST);
- if ($domain=='youtube.com' || $domain=='www.youtube.com')
- {
- parse_str(parse_url($url,PHP_URL_QUERY), $params); // Extract video ID and get thumbnail
- if (!empty($params['v'])) return array('src'=>'https://img.youtube.com/vi/'.$params['v'].'/default.jpg',
- 'href'=>$href,'width'=>'120','height'=>'90','alt'=>'YouTube thumbnail');
- }
- if ($domain=='youtu.be') // Youtube short links
- {
- $path = parse_url($url,PHP_URL_PATH);
- return array('src'=>'https://img.youtube.com/vi'.$path.'/default.jpg',
- 'href'=>$href,'width'=>'120','height'=>'90','alt'=>'YouTube thumbnail');
- }
- if ($domain=='pix.toile-libre.org') // pix.toile-libre.org image hosting
- {
- parse_str(parse_url($url,PHP_URL_QUERY), $params); // Extract image filename.
- if (!empty($params) && !empty($params['img'])) return array('src'=>'http://pix.toile-libre.org/upload/thumb/'.urlencode($params['img']),
- 'href'=>$href,'style'=>'max-width:120px; max-height:150px','alt'=>'pix.toile-libre.org thumbnail');
- }
- if ($domain=='imgur.com')
- {
- $path = parse_url($url,PHP_URL_PATH);
- if (startsWith($path,'/a/')) return array(); // Thumbnails for albums are not available.
- if (startsWith($path,'/r/')) return array('src'=>'https://i.imgur.com/'.basename($path).'s.jpg',
- 'href'=>$href,'width'=>'90','height'=>'90','alt'=>'imgur.com thumbnail');
- if (startsWith($path,'/gallery/')) return array('src'=>'https://i.imgur.com'.substr($path,8).'s.jpg',
- 'href'=>$href,'width'=>'90','height'=>'90','alt'=>'imgur.com thumbnail');
- if (substr_count($path,'/')==1) return array('src'=>'https://i.imgur.com/'.substr($path,1).'s.jpg',
- 'href'=>$href,'width'=>'90','height'=>'90','alt'=>'imgur.com thumbnail');
- }
- if ($domain=='i.imgur.com')
- {
- $pi = pathinfo(parse_url($url,PHP_URL_PATH));
- if (!empty($pi['filename'])) return array('src'=>'https://i.imgur.com/'.$pi['filename'].'s.jpg',
- 'href'=>$href,'width'=>'90','height'=>'90','alt'=>'imgur.com thumbnail');
- }
- if ($domain=='dailymotion.com' || $domain=='www.dailymotion.com')
- {
- if (strpos($url,'dailymotion.com/video/')!==false)
- {
- $thumburl=str_replace('dailymotion.com/video/','dailymotion.com/thumbnail/video/',$url);
- return array('src'=>$thumburl,
- 'href'=>$href,'width'=>'120','style'=>'height:auto;','alt'=>'DailyMotion thumbnail');
- }
- }
- if (endsWith($domain,'.imageshack.us'))
- {
- $ext=strtolower(pathinfo($url,PATHINFO_EXTENSION));
- if ($ext=='jpg' || $ext=='jpeg' || $ext=='png' || $ext=='gif')
- {
- $thumburl = substr($url,0,strlen($url)-strlen($ext)).'th.'.$ext;
- return array('src'=>$thumburl,
- 'href'=>$href,'width'=>'120','style'=>'height:auto;','alt'=>'imageshack.us thumbnail');
- }
- }
- // Some other hosts are SLOW AS HELL and usually require an extra HTTP request to get the thumbnail URL.
- // So we deport the thumbnail generation in order not to slow down page generation
- // (and we also cache the thumbnail)
- if (! $conf->get('thumbnail.enable_localcache')) return array(); // If local cache is disabled, no thumbnails for services which require the use a local cache.
- if ($domain=='flickr.com' || endsWith($domain,'.flickr.com')
- || $domain=='vimeo.com'
- || $domain=='ted.com' || endsWith($domain,'.ted.com')
- || $domain=='xkcd.com' || endsWith($domain,'.xkcd.com')
- )
- {
- if ($domain=='vimeo.com')
- { // Make sure this vimeo URL points to a video (/xxx... where xxx is numeric)
- $path = parse_url($url,PHP_URL_PATH);
- if (!preg_match('!/\d+.+?!',$path)) return array(); // This is not a single video URL.
- }
- if ($domain=='xkcd.com' || endsWith($domain,'.xkcd.com'))
- { // Make sure this URL points to a single comic (/xxx... where xxx is numeric)
- $path = parse_url($url,PHP_URL_PATH);
- if (!preg_match('!/\d+.+?!',$path)) return array();
- }
- if ($domain=='ted.com' || endsWith($domain,'.ted.com'))
- { // Make sure this TED URL points to a video (/talks/...)
- $path = parse_url($url,PHP_URL_PATH);
- if ("/talks/" !== substr($path,0,7)) return array(); // This is not a single video URL.
- }
- $sign = hash_hmac('sha256', $url, $conf->get('credentials.salt')); // We use the salt to sign data (it's random, secret, and specific to each installation)
- return array('src'=>index_url($_SERVER).'?do=genthumbnail&hmac='.$sign.'&url='.urlencode($url),
- 'href'=>$href,'width'=>'120','style'=>'height:auto;','alt'=>'thumbnail');
- }
- // For all other, we try to make a thumbnail of links ending with .jpg/jpeg/png/gif
- // Technically speaking, we should download ALL links and check their Content-Type to see if they are images.
- // But using the extension will do.
- $ext=strtolower(pathinfo($url,PATHINFO_EXTENSION));
- if ($ext=='jpg' || $ext=='jpeg' || $ext=='png' || $ext=='gif')
- {
- $sign = hash_hmac('sha256', $url, $conf->get('credentials.salt')); // We use the salt to sign data (it's random, secret, and specific to each installation)
- return array('src'=>index_url($_SERVER).'?do=genthumbnail&hmac='.$sign.'&url='.urlencode($url),
- 'href'=>$href,'width'=>'120','style'=>'height:auto;','alt'=>'thumbnail');
- }
- return array(); // No thumbnail.
- }
- // Returns the HTML code to display a thumbnail for a link
- // with a link to the original URL.
- // Understands various services (youtube.com...)
- // Input: $url = URL for which the thumbnail must be found.
- // $href = if provided, this URL will be followed instead of $url
- // Returns '' if no thumbnail available.
- function thumbnail($url,$href=false)
- {
- // FIXME!
- global $conf;
- $t = computeThumbnail($conf, $url,$href);
- if (count($t)==0) return ''; // Empty array = no thumbnail for this URL.
- $html='<a href="'.escape($t['href']).'"><img src="'.escape($t['src']).'"';
- if (!empty($t['width'])) $html.=' width="'.escape($t['width']).'"';
- if (!empty($t['height'])) $html.=' height="'.escape($t['height']).'"';
- if (!empty($t['style'])) $html.=' style="'.escape($t['style']).'"';
- if (!empty($t['alt'])) $html.=' alt="'.escape($t['alt']).'"';
- $html.='></a>';
- return $html;
- }
- // Returns the HTML code to display a thumbnail for a link
- // for the picture wall (using lazy image loading)
- // Understands various services (youtube.com...)
- // Input: $url = URL for which the thumbnail must be found.
- // $href = if provided, this URL will be followed instead of $url
- // Returns '' if no thumbnail available.
- function lazyThumbnail($conf, $url,$href=false)
- {
- // FIXME!
- global $conf;
- $t = computeThumbnail($conf, $url,$href);
- if (count($t)==0) return ''; // Empty array = no thumbnail for this URL.
- $html='<a href="'.escape($t['href']).'">';
- // Lazy image
- $html.='<img class="b-lazy" src="#" data-src="'.escape($t['src']).'"';
- if (!empty($t['width'])) $html.=' width="'.escape($t['width']).'"';
- if (!empty($t['height'])) $html.=' height="'.escape($t['height']).'"';
- if (!empty($t['style'])) $html.=' style="'.escape($t['style']).'"';
- if (!empty($t['alt'])) $html.=' alt="'.escape($t['alt']).'"';
- $html.='>';
- // No-JavaScript fallback.
- $html.='<noscript><img src="'.escape($t['src']).'"';
- if (!empty($t['width'])) $html.=' width="'.escape($t['width']).'"';
- if (!empty($t['height'])) $html.=' height="'.escape($t['height']).'"';
- if (!empty($t['style'])) $html.=' style="'.escape($t['style']).'"';
- if (!empty($t['alt'])) $html.=' alt="'.escape($t['alt']).'"';
- $html.='></noscript></a>';
- return $html;
- }
- /**
- * Installation
- * This function should NEVER be called if the file data/config.php exists.
- *
- * @param ConfigManager $conf Configuration Manager instance.
- */
- function install($conf)
- {
- // On free.fr host, make sure the /sessions directory exists, otherwise login will not work.
- if (endsWith($_SERVER['HTTP_HOST'],'.free.fr') && !is_dir($_SERVER['DOCUMENT_ROOT'].'/sessions')) mkdir($_SERVER['DOCUMENT_ROOT'].'/sessions',0705);
- // This part makes sure sessions works correctly.
- // (Because on some hosts, session.save_path may not be set correctly,
- // or we may not have write access to it.)
- if (isset($_GET['test_session']) && ( !isset($_SESSION) || !isset($_SESSION['session_tested']) || $_SESSION['session_tested']!='Working'))
- { // Step 2: Check if data in session is correct.
- echo '<pre>Sessions do not seem to work correctly on your server.<br>';
- echo 'Make sure the variable session.save_path is set correctly in your php config, and that you have write access to it.<br>';
- echo 'It currently points to '.session_save_path().'<br>';
- echo 'Check that the hostname used to access Shaarli contains a dot. On some browsers, accessing your server via a hostname like \'localhost\' or any custom hostname without a dot causes cookie storage to fail. We recommend accessing your server via it\'s IP address or Fully Qualified Domain Name.<br>';
- echo '<br><a href="?">Click to try again.</a></pre>';
- die;
- }
- if (!isset($_SESSION['session_tested']))
- { // Step 1 : Try to store data in session and reload page.
- $_SESSION['session_tested'] = 'Working'; // Try to set a variable in session.
- header('Location: '.index_url($_SERVER).'?test_session'); // Redirect to check stored data.
- }
- if (isset($_GET['test_session']))
- { // Step 3: Sessions are OK. Remove test parameter from URL.
- header('Location: '.index_url($_SERVER));
- }
- if (!empty($_POST['setlogin']) && !empty($_POST['setpassword']))
- {
- $tz = 'UTC';
- if (!empty($_POST['continent']) && !empty($_POST['city'])
- && isTimeZoneValid($_POST['continent'], $_POST['city'])
- ) {
- $tz = $_POST['continent'].'/'.$_POST['city'];
- }
- $conf->set('general.timezone', $tz);
- $login = $_POST['setlogin'];
- $conf->set('credentials.login', $login);
- $salt = sha1(uniqid('', true) .'_'. mt_rand());
- $conf->set('credentials.salt', $salt);
- $conf->set('credentials.hash', sha1($_POST['setpassword'] . $login . $salt));
- if (!empty($_POST['title'])) {
- $conf->set('general.title', escape($_POST['title']));
- } else {
- $conf->set('general.title', 'Shared links on '.escape(index_url($_SERVER)));
- }
- $conf->set('updates.check_updates', !empty($_POST['updateCheck']));
- $conf->set('api.enabled', !empty($_POST['enableApi']));
- $conf->set(
- 'api.secret',
- generate_api_secret(
- $conf->get('credentials.login'),
- $conf->get('credentials.salt')
- )
- );
- try {
- // Everything is ok, let's create config file.
- $conf->write(isLoggedIn());
- }
- catch(Exception $e) {
- error_log(
- 'ERROR while writing config file after installation.' . PHP_EOL .
- $e->getMessage()
- );
- // TODO: do not handle exceptions/errors in JS.
- echo '<script>alert("'. $e->getMessage() .'");document.location=\'?\';</script>';
- exit;
- }
- echo '<script>alert("Shaarli is now configured. Please enter your login/password and start shaaring your links!");document.location=\'?do=login\';</script>';
- exit;
- }
- // Display config form:
- list($timezone_form, $timezone_js) = generateTimeZoneForm();
- $timezone_html = '';
- if ($timezone_form != '') {
- $timezone_html = '<tr><td><b>Timezone:</b></td><td>'.$timezone_form.'</td></tr>';
- }
- $PAGE = new PageBuilder($conf);
- $PAGE->assign('timezone_html',$timezone_html);
- $PAGE->assign('timezone_js',$timezone_js);
- $PAGE->renderPage('install');
- exit;
- }
- /**
- * Because some f*cking services like flickr require an extra HTTP request to get the thumbnail URL,
- * I have deported the thumbnail URL code generation here, otherwise this would slow down page generation.
- * The following function takes the URL a link (e.g. a flickr page) and return the proper thumbnail.
- * This function is called by passing the URL:
- * http://mywebsite.com/shaarli/?do=genthumbnail&hmac=[HMAC]&url=[URL]
- * [URL] is the URL of the link (e.g. a flickr page)
- * [HMAC] is the signature for the [URL] (so that these URL cannot be forged).
- * The function below will fetch the image from the webservice and store it in the cache.
- *
- * @param ConfigManager $conf Configuration Manager instance,
- */
- function genThumbnail($conf)
- {
- // Make sure the parameters in the URL were generated by us.
- $sign = hash_hmac('sha256', $_GET['url'], $conf->get('credentials.salt'));
- if ($sign!=$_GET['hmac']) die('Naughty boy!');
- $cacheDir = $conf->get('resource.thumbnails_cache', 'cache');
- // Let's see if we don't already have the image for this URL in the cache.
- $thumbname=hash('sha1',$_GET['url']).'.jpg';
- if (is_file($cacheDir .'/'. $thumbname))
- { // We have the thumbnail, just serve it:
- header('Content-Type: image/jpeg');
- echo file_get_contents($cacheDir .'/'. $thumbname);
- return;
- }
- // We may also serve a blank image (if service did not respond)
- $blankname=hash('sha1',$_GET['url']).'.gif';
- if (is_file($cacheDir .'/'. $blankname))
- {
- header('Content-Type: image/gif');
- echo file_get_contents($cacheDir .'/'. $blankname);
- return;
- }
- // Otherwise, generate the thumbnail.
- $url = $_GET['url'];
- $domain = parse_url($url,PHP_URL_HOST);
- if ($domain=='flickr.com' || endsWith($domain,'.flickr.com'))
- {
- // Crude replacement to handle new flickr domain policy (They prefer www. now)
- $url = str_replace('http://flickr.com/','http://www.flickr.com/',$url);
- // Is this a link to an image, or to a flickr page ?
- $imageurl='';
- if (endsWith(parse_url($url, PHP_URL_PATH), '.jpg'))
- { // This is a direct link to an image. e.g. http://farm1.staticflickr.com/5/5921913_ac83ed27bd_o.jpg
- preg_match('!(http://farm\d+\.staticflickr\.com/\d+/\d+_\w+_)\w.jpg!',$url,$matches);
- if (!empty($matches[1])) $imageurl=$matches[1].'m.jpg';
- }
- else // This is a flickr page (html)
- {
- // Get the flickr html page.
- list($headers, $content) = get_http_response($url, 20);
- if (strpos($headers[0], '200 OK') !== false)
- {
- // flickr now nicely provides the URL of the thumbnail in each flickr page.
- preg_match('!<link rel=\"image_src\" href=\"(.+?)\"!', $content, $matches);
- if (!empty($matches[1])) $imageurl=$matches[1];
- // In albums (and some other pages), the link rel="image_src" is not provided,
- // but flickr provides:
- // <meta property="og:image" content="http://farm4.staticflickr.com/3398/3239339068_25d13535ff_z.jpg" />
- if ($imageurl=='')
- {
- preg_match('!<meta property=\"og:image\" content=\"(.+?)\"!', $content, $matches);
- if (!empty($matches[1])) $imageurl=$matches[1];
- }
- }
- }
- if ($imageurl!='')
- { // Let's download the image.
- // Image is 240x120, so 10 seconds to download should be enough.
- list($headers, $content) = get_http_response($imageurl, 10);
- if (strpos($headers[0], '200 OK') !== false) {
- // Save image to cache.
- file_put_contents($cacheDir .'/'. $thumbname, $content);
- header('Content-Type: image/jpeg');
- echo $content;
- return;
- }
- }
- }
- elseif ($domain=='vimeo.com' )
- {
- // This is more complex: we have to perform a HTTP request, then parse the result.
- // Maybe we should deport this to JavaScript ? Example: http://stackoverflow.com/questions/1361149/get-img-thumbnails-from-vimeo/4285098#4285098
- $vid = substr(parse_url($url,PHP_URL_PATH),1);
- list($headers, $content) = get_http_response('https://vimeo.com/api/v2/video/'.escape($vid).'.php', 5);
- if (strpos($headers[0], '200 OK') !== false) {
- $t = unserialize($content);
- $imageurl = $t[0]['thumbnail_medium'];
- // Then we download the image and serve it to our client.
- list($headers, $content) = get_http_response($imageurl, 10);
- if (strpos($headers[0], '200 OK') !== false) {
- // Save image to cache.
- file_put_contents($cacheDir .'/'. $thumbname, $content);
- header('Content-Type: image/jpeg');
- echo $content;
- return;
- }
- }
- }
- elseif ($domain=='ted.com' || endsWith($domain,'.ted.com'))
- {
- // The thumbnail for TED talks is located in the <link rel="image_src" [...]> tag on that page
- // http://www.ted.com/talks/mikko_hypponen_fighting_viruses_defending_the_net.html
- // <link rel="image_src" href="http://images.ted.com/images/ted/28bced335898ba54d4441809c5b1112ffaf36781_389x292.jpg" />
- list($headers, $content) = get_http_response($url, 5);
- if (strpos($headers[0], '200 OK') !== false) {
- // Extract the link to the thumbnail
- preg_match('!link rel="image_src" href="(http://images.ted.com/images/ted/.+_\d+x\d+\.jpg)"!', $content, $matches);
- if (!empty($matches[1]))
- { // Let's download the image.
- $imageurl=$matches[1];
- // No control on image size, so wait long enough
- list($headers, $content) = get_http_response($imageurl, 20);
- if (strpos($headers[0], '200 OK') !== false) {
- $filepath = $cacheDir .'/'. $thumbname;
- file_put_contents($filepath, $content); // Save image to cache.
- if (resizeImage($filepath))
- {
- header('Content-Type: image/jpeg');
- echo file_get_contents($filepath);
- return;
- }
- }
- }
- }
- }
- elseif ($domain=='xkcd.com' || endsWith($domain,'.xkcd.com'))
- {
- // There is no thumbnail available for xkcd comics, so download the whole image and resize it.
- // http://xkcd.com/327/
- // <img src="http://imgs.xkcd.com/comics/exploits_of_a_mom.png" title="<BLABLA>" alt="<BLABLA>" />
- list($headers, $content) = get_http_response($url, 5);
- if (strpos($headers[0], '200 OK') !== false) {
- // Extract the link to the thumbnail
- preg_match('!<img src="(http://imgs.xkcd.com/comics/.*)" title="[^s]!', $content, $matches);
- if (!empty($matches[1]))
- { // Let's download the image.
- $imageurl=$matches[1];
- // No control on image size, so wait long enough
- list($headers, $content) = get_http_response($imageurl, 20);
- if (strpos($headers[0], '200 OK') !== false) {
- $filepath = $cacheDir.'/'.$thumbname;
- // Save image to cache.
- file_put_contents($filepath, $content);
- if (resizeImage($filepath))
- {
- header('Content-Type: image/jpeg');
- echo file_get_contents($filepath);
- return;
- }
- }
- }
- }
- }
- else
- {
- // For all other domains, we try to download the image and make a thumbnail.
- // We allow 30 seconds max to download (and downloads are limited to 4 Mb)
- list($headers, $content) = get_http_response($url, 30);
- if (strpos($headers[0], '200 OK') !== false) {
- $filepath = $cacheDir .'/'.$thumbname;
- // Save image to cache.
- file_put_contents($filepath, $content);
- if (resizeImage($filepath))
- {
- header('Content-Type: image/jpeg');
- echo file_get_contents($filepath);
- return;
- }
- }
- }
- // Otherwise, return an empty image (8x8 transparent gif)
- $blankgif = base64_decode('R0lGODlhCAAIAIAAAP///////yH5BAEKAAEALAAAAAAIAAgAAAIHjI+py+1dAAA7');
- // Also put something in cache so that this URL is not requested twice.
- file_put_contents($cacheDir .'/'. $blankname, $blankgif);
- header('Content-Type: image/gif');
- echo $blankgif;
- }
- // Make a thumbnail of the image (to width: 120 pixels)
- // Returns true if success, false otherwise.
- function resizeImage($filepath)
- {
- if (!function_exists('imagecreatefromjpeg')) return false; // GD not present: no thumbnail possible.
- // Trick: some stupid people rename GIF as JPEG... or else.
- // So we really try to open each image type whatever the extension is.
- $header=file_get_contents($filepath,false,NULL,0,256); // Read first 256 bytes and try to sniff file type.
- $im=false;
- $i=strpos($header,'GIF8'); if (($i!==false) && ($i==0)) $im = imagecreatefromgif($filepath); // Well this is crude, but it should be enough.
- $i=strpos($header,'PNG'); if (($i!==false) && ($i==1)) $im = imagecreatefrompng($filepath);
- $i=strpos($header,'JFIF'); if ($i!==false) $im = imagecreatefromjpeg($filepath);
- if (!$im) return false; // Unable to open image (corrupted or not an image)
- $w = imagesx($im);
- $h = imagesy($im);
- $ystart = 0; $yheight=$h;
- if ($h>$w) { $ystart= ($h/2)-($w/2); $yheight=$w/2; }
- $nw = 120; // Desired width
- $nh = min(floor(($h*$nw)/$w),120); // Compute new width/height, but maximum 120 pixels height.
- // Resize image:
- $im2 = imagecreatetruecolor($nw,$nh);
- imagecopyresampled($im2, $im, 0, 0, 0, $ystart, $nw, $nh, $w, $yheight);
- imageinterlace($im2,true); // For progressive JPEG.
- $tempname=$filepath.'_TEMP.jpg';
- imagejpeg($im2, $tempname, 90);
- imagedestroy($im);
- imagedestroy($im2);
- unlink($filepath);
- rename($tempname,$filepath); // Overwrite original picture with thumbnail.
- return true;
- }
- if (isset($_SERVER['QUERY_STRING']) && startsWith($_SERVER['QUERY_STRING'], 'do=genthumbnail')) { genThumbnail($conf); exit; } // Thumbnail generation/cache does not need the link database.
- if (isset($_SERVER['QUERY_STRING']) && startsWith($_SERVER['QUERY_STRING'], 'do=dailyrss')) { showDailyRSS($conf); exit; }
- if (!isset($_SESSION['LINKS_PER_PAGE'])) {
- $_SESSION['LINKS_PER_PAGE'] = $conf->get('general.links_per_page', 20);
- }
- $linkDb = new LinkDB(
- $conf->get('resource.datastore'),
- isLoggedIn(),
- $conf->get('privacy.hide_public_links'),
- $conf->get('redirector.url'),
- $conf->get('redirector.encode_url')
- );
- $container = new \Slim\Container();
- $container['conf'] = $conf;
- $container['plugins'] = $pluginManager;
- $app = new \Slim\App($container);
- // REST API routes
- $app->group('/api/v1', function() {
- $this->get('/info', '\Shaarli\Api\Controllers\Info:getInfo');
- $this->get('/links', '\Shaarli\Api\Controllers\Links:getLinks');
- })->add('\Shaarli\Api\ApiMiddleware');
- $response = $app->run(true);
- // Hack to make Slim and Shaarli router work together:
- // If a Slim route isn't found, we call renderPage().
- if ($response->getStatusCode() == 404) {
- // We use UTF-8 for proper international characters handling.
- header('Content-Type: text/html; charset=utf-8');
- renderPage($conf, $pluginManager, $linkDb);
- } else {
- $app->respond($response);
- }
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