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index.php
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<?php
/**
* Shaarli - 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
*/
// 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
*/
// 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://shaarli.readthedocs.io/en/master/Server-configuration/\n"
."- https://shaarli.readthedocs.io/en/master/Download-and-Installation/";
exit;
}
require_once 'inc/rain.tpl.class.php';
require_once __DIR__ . '/vendor/autoload.php';
// Shaarli library
require_once 'application/bookmark/LinkUtils.php';
require_once 'application/config/ConfigPlugin.php';
require_once 'application/feed/Cache.php';
require_once 'application/http/HttpUtils.php';
require_once 'application/http/UrlUtils.php';
require_once 'application/updater/UpdaterUtils.php';
require_once 'application/FileUtils.php';
require_once 'application/TimeZone.php';
require_once 'application/Utils.php';
use \Shaarli\ApplicationUtils;
use \Shaarli\Bookmark\Exception\LinkNotFoundException;
use \Shaarli\Bookmark\LinkDB;
use \Shaarli\Config\ConfigManager;
use \Shaarli\Feed\CachedPage;
use \Shaarli\Feed\FeedBuilder;
use \Shaarli\History;
use \Shaarli\Languages;
use \Shaarli\Netscape\NetscapeBookmarkUtils;
use \Shaarli\Plugin\PluginManager;
use \Shaarli\Render\PageBuilder;
use \Shaarli\Render\ThemeUtils;
use \Shaarli\Router;
use \Shaarli\Security\LoginManager;
use \Shaarli\Security\SessionManager;
use \Shaarli\Thumbnailer;
use \Shaarli\Updater\Updater;
// Ensure the PHP version is supported
try {
ApplicationUtils::checkPHPVersion('7.1', PHP_VERSION);
} catch (Exception $exc) {
header('Content-Type: text/plain; charset=utf-8');
echo $exc->getMessage();
exit;
}
define('SHAARLI_VERSION', ApplicationUtils::getVersion(__DIR__ .'/'. ApplicationUtils::$VERSION_FILE));
// 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, $_SERVER['SERVER_NAME']);
// Set session parameters on server side.
// Use cookies to store session.
ini_set('session.use_cookies', 1);
// Force cookies for session (phpsessionID forbidden in URL).
ini_set('session.use_only_cookies', 1);
// Prevent PHP form using sessionID in URL if cookies are disabled.
ini_set('session.use_trans_sid', false);
session_name('shaarli');
// Start session if needed (Some server auto-start sessions).
if (session_status() == PHP_SESSION_NONE) {
session_start();
}
// Regenerate session ID if invalid or not defined in cookie.
if (isset($_COOKIE['shaarli']) && !SessionManager::checkId($_COOKIE['shaarli'])) {
session_regenerate_id(true);
$_COOKIE['shaarli'] = session_id();
}
$conf = new ConfigManager();
$sessionManager = new SessionManager($_SESSION, $conf);
$loginManager = new LoginManager($conf, $sessionManager);
$loginManager->generateStaySignedInToken($_SERVER['REMOTE_ADDR']);
$clientIpId = client_ip_id($_SERVER);
// LC_MESSAGES isn't defined without php-intl, in this case use LC_COLLATE locale instead.
if (! defined('LC_MESSAGES')) {
define('LC_MESSAGES', LC_COLLATE);
}
// Sniff browser language and set date format accordingly.
if (isset($_SERVER['HTTP_ACCEPT_LANGUAGE'])) {
autoLocale($_SERVER['HTTP_ACCEPT_LANGUAGE']);
}
new Languages(setlocale(LC_MESSAGES, 0), $conf);
$conf->setEmpty('general.timezone', date_default_timezone_get());
$conf->setEmpty('general.title', t('Shared links on '). escape(index_url($_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($conf->get('general.timezone', 'UTC'));
ob_start(); // Output buffering for the page cache.
// Prevent caching on client side or proxy: (yes, it's ugly)
header("Last-Modified: " . gmdate("D, d M Y H:i:s") . " GMT");
header("Cache-Control: no-store, no-cache, must-revalidate");
header("Cache-Control: post-check=0, pre-check=0", false);
header("Pragma: no-cache");
if (! is_file($conf->getConfigFileExt())) {
// Ensure Shaarli has proper access to its resources
$errors = ApplicationUtils::checkResourcePermissions($conf);
if ($errors != array()) {
$message = '<p>'. t('Insufficient permissions:') .'</p><ul>';
foreach ($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, $sessionManager, $loginManager);
}
$loginManager->checkLoginState($_COOKIE, $clientIpId);
/**
* Adapter function to ensure compatibility with third-party templates
*
* @see https://github.com/shaarli/Shaarli/pull/1086
*
* @return bool true when the user is logged in, false otherwise
*/
function isLoggedIn()
{
global $loginManager;
return $loginManager->isLoggedIn();
}
// ------------------------------------------------------------------------------------------
// Process login form: Check if login/password is correct.
if (isset($_POST['login'])) {
if (! $loginManager->canLogin($_SERVER)) {
die(t('I said: NO. You are banned for the moment. Go away.'));
}
if (isset($_POST['password'])
&& $sessionManager->checkToken($_POST['token'])
&& $loginManager->checkCredentials($_SERVER['REMOTE_ADDR'], $clientIpId, $_POST['login'], $_POST['password'])
) {
$loginManager->handleSuccessfulLogin($_SERVER);
$cookiedir = '';
if (dirname($_SERVER['SCRIPT_NAME']) != '/') {
// Note: Never forget the trailing slash on the cookie path!
$cookiedir = dirname($_SERVER["SCRIPT_NAME"]) . '/';
}
if (!empty($_POST['longlastingsession'])) {
// Keep the session cookie even after the browser closes
$sessionManager->setStaySignedIn(true);
$expirationTime = $sessionManager->extendSession();
setcookie(
$loginManager::$STAY_SIGNED_IN_COOKIE,
$loginManager->getStaySignedInToken(),
$expirationTime,
WEB_PATH
);
} else {
// Standard session expiration (=when browser closes)
$expirationTime = 0;
}
// Send cookie with the new expiration date to the browser
session_set_cookie_params($expirationTime, $cookiedir, $_SERVER['SERVER_NAME']);
session_regenerate_id(true);
// Optional redirect after login:
if (isset($_GET['post'])) {
$uri = '?post='. urlencode($_GET['post']);
foreach (array('description', 'source', 'title', 'tags') 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 {
$loginManager->handleFailedLogin($_SERVER);
$redir = '&username='. urlencode($_POST['login']);
if (isset($_GET['post'])) {
$redir .= '&post=' . urlencode($_GET['post']);
foreach (array('description', 'source', 'title', 'tags') as $param) {
if (!empty($_GET[$param])) {
$redir .= '&' . $param . '=' . urlencode($_GET[$param]);
}
}
}
// Redirect to login screen.
echo '<script>alert("'. t("Wrong login/password.") .'");document.location=\'?do=login'.$redir.'\';</script>';
exit;
}
}
// ------------------------------------------------------------------------------------------
// 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.
}
/**
* 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
* @param LoginManager $loginManager LoginManager instance
*/
function showDailyRSS($conf, $loginManager)
{
// Cache system
$query = $_SERVER['QUERY_STRING'];
$cache = new CachedPage(
$conf->get('config.PAGE_CACHE'),
page_url($_SERVER),
startsWith($query, 'do=dailyrss') && !$loginManager->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'),
$loginManager->isLoggedIn(),
$conf->get('privacy.hide_public_links')
);
/* Some Shaarlies may have very few links, so we need to look
back in time until we have enough days ($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']);
$link['timestamp'] = $link['created']->getTimestamp();
if (is_note($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));
$tpl->assign('index_url', $pageaddr);
$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 instance.
* @param LoginManager $loginManager Login Manager instance
*/
function showDaily($pageBuilder, $LINKSDB, $conf, $pluginManager, $loginManager)
{
if (isset($_GET['day'])) {
$day = $_GET['day'];
if ($day === date('Ymd', strtotime('now'))) {
$pageBuilder->assign('dayDesc', t('Today'));
} elseif ($day === date('Ymd', strtotime('-1 days'))) {
$pageBuilder->assign('dayDesc', t('Yesterday'));
}
} else {
$day = date('Ymd', strtotime('now')); // Today, in format YYYYMMDD.
$pageBuilder->assign('dayDesc', t('Today'));
}
$days = $LINKSDB->days();
$i = array_search($day, $days);
if ($i === false && count($days)) {
// no links for day, but at least one day with links
$i = count($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']);
$linksToDisplay[$key]['timestamp'] = $link['created']->getTimestamp();
}
$dayDate = DateTime::createFromFormat(LinkDB::LINK_DATE_FORMAT, $day.'_000000');
$data = array(
'pagetitle' => $conf->get('general.title') .' - '. format_date($dayDate, false),
'linksToDisplay' => $linksToDisplay,
'day' => $dayDate->getTimestamp(),
'dayDate' => $dayDate,
'previousday' => $previousday,
'nextday' => $nextday,
);
/* Hook is called before column construction so that plugins don't have
to deal with columns. */
$pluginManager->executeHooks('render_daily', $data, array('loggedin' => $loginManager->isLoggedIn()));
/* 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.
$fill = array(0, 0, 0); // Rough estimate of columns fill.
foreach ($data['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($link['description'])) / 836;
if (! empty($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;
}
$data['cols'] = $columns;
foreach ($data as $key => $value) {
$pageBuilder->assign($key, $value);
}
$pageBuilder->assign('pagetitle', t('Daily') .' - '. $conf->get('general.title', 'Shaarli'));
$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, $loginManager)
{
buildLinkList($PAGE, $LINKSDB, $conf, $pluginManager, $loginManager);
$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
* @param History $history instance
* @param SessionManager $sessionManager SessionManager instance
* @param LoginManager $loginManager LoginManager instance
*/
function renderPage($conf, $pluginManager, $LINKSDB, $history, $sessionManager, $loginManager)
{
$updater = new Updater(
read_updates_file($conf->get('resource.updates')),
$LINKSDB,
$conf,
$loginManager->isLoggedIn(),
$_SESSION
);
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, $_SESSION, $LINKSDB, $sessionManager->generateToken(), $loginManager->isLoggedIn());
$PAGE->assign('linkcount', count($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, $loginManager->isLoggedIn());
if (// if the user isn't logged in
!$loginManager->isLoggedIn() &&
// and Shaarli doesn't have public content...
$conf->get('privacy.hide_public_links') &&
// and is configured to enforce the login
$conf->get('privacy.force_login') &&
// and the current page isn't already the login page
$targetPage !== Router::$PAGE_LOGIN &&
// and the user is not requesting a feed (which would lead to a different content-type as expected)
$targetPage !== Router::$PAGE_FEED_ATOM &&
$targetPage !== Router::$PAGE_FEED_RSS
) {
// force current page to be the login page
$targetPage = Router::$PAGE_LOGIN;
}
// 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' => $loginManager->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']):''));
// add default state of the 'remember me' checkbox
$PAGE->assign('remember_user_default', $conf->get('privacy.remember_user_default'));
$PAGE->assign('user_can_login', $loginManager->canLogin($_SERVER));
$PAGE->assign('pagetitle', t('Login') .' - '. $conf->get('general.title', 'Shaarli'));
$PAGE->renderPage('loginform');
exit;
}
// -------- User wants to logout.
if (isset($_SERVER['QUERY_STRING']) && startsWith($_SERVER['QUERY_STRING'], 'do=logout')) {
invalidateCaches($conf->get('resource.page_cache'));
$sessionManager->logout();
setcookie(LoginManager::$STAY_SIGNED_IN_COOKIE, 'false', 0, WEB_PATH);
header('Location: ?');
exit;
}
// -------- Picture wall
if ($targetPage == Router::$PAGE_PICWALL) {
$PAGE->assign('pagetitle', t('Picture wall') .' - '. $conf->get('general.title', 'Shaarli'));
if (! $conf->get('thumbnails.mode', Thumbnailer::MODE_NONE) === Thumbnailer::MODE_NONE) {
$PAGE->assign('linksToDisplay', []);
$PAGE->renderPage('picwall');
exit;
}
// Optionally filter the results:
$links = $LINKSDB->filterSearch($_GET);
$linksToDisplay = array();
// Get only links which have a thumbnail.
// Note: we do not retrieve thumbnails here, the request is too heavy.
foreach ($links as $key => $link) {
if (isset($link['thumbnail']) && $link['thumbnail'] !== false) {
$linksToDisplay[] = $link; // Add to array.
}
}
$data = array(
'linksToDisplay' => $linksToDisplay,
);
$pluginManager->executeHooks('render_picwall', $data, array('loggedin' => $loginManager->isLoggedIn()));
foreach ($data as $key => $value) {
$PAGE->assign($key, $value);
}
$PAGE->renderPage('picwall');
exit;
}
// -------- Tag cloud
if ($targetPage == Router::$PAGE_TAGCLOUD) {
$visibility = ! empty($_SESSION['visibility']) ? $_SESSION['visibility'] : '';
$filteringTags = isset($_GET['searchtags']) ? explode(' ', $_GET['searchtags']) : [];
$tags = $LINKSDB->linksCountPerTag($filteringTags, $visibility);
// 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, $value);
}
alphabetical_sort($tags, false, true);
$tagList = array();
foreach ($tags as $key => $value) {
if (in_array($key, $filteringTags)) {
continue;
}
// 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, '.', ''),
);
}
$searchTags = implode(' ', escape($filteringTags));
$data = array(
'search_tags' => $searchTags,
'tags' => $tagList,
);
$pluginManager->executeHooks('render_tagcloud', $data, array('loggedin' => $loginManager->isLoggedIn()));
foreach ($data as $key => $value) {
$PAGE->assign($key, $value);
}
$searchTags = ! empty($searchTags) ? $searchTags .' - ' : '';
$PAGE->assign('pagetitle', $searchTags. t('Tag cloud') .' - '. $conf->get('general.title', 'Shaarli'));
$PAGE->renderPage('tag.cloud');
exit;
}
// -------- Tag list
if ($targetPage == Router::$PAGE_TAGLIST) {
$visibility = ! empty($_SESSION['visibility']) ? $_SESSION['visibility'] : '';
$filteringTags = isset($_GET['searchtags']) ? explode(' ', $_GET['searchtags']) : [];
$tags = $LINKSDB->linksCountPerTag($filteringTags, $visibility);
foreach ($filteringTags as $tag) {
if (array_key_exists($tag, $tags)) {
unset($tags[$tag]);
}
}
if (! empty($_GET['sort']) && $_GET['sort'] === 'alpha') {
alphabetical_sort($tags, false, true);
}
$searchTags = implode(' ', escape($filteringTags));
$data = [
'search_tags' => $searchTags,
'tags' => $tags,
];
$pluginManager->executeHooks('render_taglist', $data, ['loggedin' => $loginManager->isLoggedIn()]);
foreach ($data as $key => $value) {
$PAGE->assign($key, $value);
}
$searchTags = ! empty($searchTags) ? $searchTags .' - ' : '';
$PAGE->assign('pagetitle', $searchTags . t('Tag list') .' - '. $conf->get('general.title', 'Shaarli'));
$PAGE->renderPage('tag.list');
exit;
}
// Daily page.
if ($targetPage == Router::$PAGE_DAILY) {
showDaily($PAGE, $LINKSDB, $conf, $pluginManager, $loginManager);
}
// ATOM and RSS feed.
if ($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='. $targetPage) && !$loginManager->isLoggedIn()
);
$cached = $cache->cachedVersion();
if (!empty($cached)) {
echo $cached;
exit;
}
// Generate data.
$feedGenerator = new FeedBuilder($LINKSDB, $feedType, $_SERVER, $_GET, $loginManager->isLoggedIn());
$feedGenerator->setLocale(strtolower(setlocale(LC_COLLATE, 0)));
$feedGenerator->setHideDates($conf->get('privacy.hide_timestamps') && !$loginManager->isLoggedIn());
$feedGenerator->setUsePermalinks(isset($_GET['permalinks']) || !$conf->get('feed.rss_permalinks'));
$data = $feedGenerator->buildData();
// Process plugin hook.
$pluginManager->executeHooks('render_feed', $data, array(
'loggedin' => $loginManager->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($_SERVER['HTTP_REFERER'])) {
// In case browser does not send HTTP_REFERER
header('Location: ?searchtags='.urlencode($_GET['addtag']));
exit;
}
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']);
} elseif ($addtag) {
$params['searchtags'] = trim($params['searchtags']).' '.trim($_GET['addtag']);
}
// We also remove page (keeping the same page has no sense, since the
// results are different)
unset($params['page']);
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($params['searchtags']);
}
// We also remove page (keeping the same page has no sense, since
// the results are different)
unset($params['page']);
}
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']));
}
if (! empty($_SERVER['HTTP_REFERER'])) {
$location = generateLocation($_SERVER['HTTP_REFERER'], $_SERVER['HTTP_HOST'], array('linksperpage'));
} else {
$location = '?';
}
header('Location: '. $location);
exit;
}
// -------- User wants to see only private links (toggle)
if (isset($_GET['visibility'])) {
if ($_GET['visibility'] === 'private') {
// Visibility not set or not already private, set private, otherwise reset it
if (empty($_SESSION['visibility']) || $_SESSION['visibility'] !== 'private') {
// See only private links
$_SESSION['visibility'] = 'private';
} else {
unset($_SESSION['visibility']);
}
} elseif ($_GET['visibility'] === 'public') {
if (empty($_SESSION['visibility']) || $_SESSION['visibility'] !== 'public') {
// See only public links
$_SESSION['visibility'] = 'public';
} else {
unset($_SESSION['visibility']);
}
}
if (! empty($_SERVER['HTTP_REFERER'])) {
$location = generateLocation($_SERVER['HTTP_REFERER'], $_SERVER['HTTP_HOST'], array('visibility'));
} else {
$location = '?';
}
header('Location: '. $location);
exit;
}
// -------- User wants to see only untagged links (toggle)
if (isset($_GET['untaggedonly'])) {
$_SESSION['untaggedonly'] = empty($_SESSION['untaggedonly']);
if (! empty($_SERVER['HTTP_REFERER'])) {
$location = generateLocation($_SERVER['HTTP_REFERER'], $_SERVER['HTTP_HOST'], array('untaggedonly'));
} else {
$location = '?';
}
header('Location: '. $location);
exit;
}
// -------- Handle other actions allowed for non-logged in users:
if (!$loginManager->isLoggedIn()) {
// User tries to post new link but is not logged in:
// Show login screen, then redirect to ?post=...
if (isset($_GET['post'])) {
header( // Redirect to login page, then back to post link.
'Location: ?do=login&post='.urlencode($_GET['post']).
(!empty($_GET['title'])?'&title='.urlencode($_GET['title']):'').
(!empty($_GET['description'])?'&description='.urlencode($_GET['description']):'').
(!empty($_GET['tags'])?'&tags='.urlencode($_GET['tags']):'').
(!empty($_GET['source'])?'&source='.urlencode($_GET['source']):'')
);
exit;
}
showLinkList($PAGE, $LINKSDB, $conf, $pluginManager, $loginManager);
if (isset($_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) {
$data = [
'pageabsaddr' => index_url($_SERVER),
'sslenabled' => is_https($_SERVER),
];
$pluginManager->executeHooks('render_tools', $data);
foreach ($data as $key => $value) {
$PAGE->assign($key, $value);
}
$PAGE->assign('pagetitle', t('Tools') .' - '. $conf->get('general.title', 'Shaarli'));
$PAGE->renderPage('tools');
exit;
}
// -------- User wants to change his/her password.
if ($targetPage == Router::$PAGE_CHANGEPASSWORD) {
if ($conf->get('security.open_shaarli')) {
die(t('You are not supposed to change a password on an Open Shaarli.'));
}
if (!empty($_POST['setpassword']) && !empty($_POST['oldpassword'])) {
if (!$sessionManager->checkToken($_POST['token'])) {
die(t('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("'
. t('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 {
$conf->write($loginManager->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("'. t('Your password has been changed') .'");document.location=\'?do=tools\';</script>';
exit;
} else {
// show the change password form.
$PAGE->assign('pagetitle', t('Change password') .' - '. $conf->get('general.title', 'Shaarli'));
$PAGE->renderPage('changepassword');
exit;
}
}