<?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
*
* Requires: PHP 5.5.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
*/
// 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/ApplicationUtils.php';
require_once 'application/Cache.php';
require_once 'application/CachedPage.php';
require_once 'application/config/ConfigPlugin.php';
require_once 'application/FeedBuilder.php';
require_once 'application/FileUtils.php';
require_once 'application/History.php';
require_once 'application/HttpUtils.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\Config\ConfigManager;
use \Shaarli\Languages;
use \Shaarli\Security\LoginManager;
use \Shaarli\Security\SessionManager;
use \Shaarli\ThemeUtils;
use \Shaarli\Thumbnailer;
// Ensure the PHP version is supported
try {
ApplicationUtils::checkPHPVersion('5.5', 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, $_SERVER['SERVER_NAME']);
// Set session parameters on server side.
// Use cookies to store session.
ini_set('session.use_cookies', 1);
// Force cookies for session (phpsessionID forbidden in URL).
ini_set('session.use_only_cookies', 1);
// Prevent PHP form using sessionID in URL if cookies are disabled.
ini_set('session.use_trans_sid', false);
session_name('shaarli');
// Start session if needed (Some server auto-start sessions).
if (session_id() == '') {
session_start();
}
// Regenerate session ID if invalid or not defined in cookie.
if (isset($_COOKIE['shaarli']) && !SessionManager::checkId($_COOKIE['shaarli'])) {
session_regenerate_id(true);
$_COOKIE['shaarli'] = session_id();
}
$conf = new ConfigManager();
$sessionManager = new SessionManager($_SESSION, $conf);
$loginManager = new LoginManager($GLOBALS, $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'),
$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'),
$conf->get('redirector.encode_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 instance.
* @param LoginManager $loginManager Login Manager instance
*/
function showDaily($pageBuilder, $LINKSDB, $conf, $pluginManager, $loginManager)
{
$day = date('Ymd', strtotime('-1 day')); // Yesterday, in format YYYYMMDD.
if (isset($_GET['day'])) {
$day = $_GET['day'];
}
$days = $LINKSDB->days();
$i = array_search($day, $days);
if ($i === false && 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'],
$conf->get('redirector.url'),
$conf->get('redirector.encode_url')
);
$linksToDisplay[$key]['thumbnail'] = thumbnail($conf, $link['url']);
$linksToDisplay[$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($link['description'])) / 836;
if ($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()
);
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, $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)
{
if (! $conf->get('thumbnails.enabled')) {
$PAGE->renderPage('picwall');
exit;
}
// Optionally filter the results:
$links = $LINKSDB->filterSearch($_GET);
$linksToDisplay = array();
$thumbnailer = new Thumbnailer($conf);
$newThumbnailsCpt = 0;
// Get only links which have a thumbnail.
foreach($links as $key => $link)
{
// Not a note,
// and (never retrieved yet or no valid cache file)
if ($link['url'][0] != '?'
&& (! isset($link['thumbnail']) || ($link['thumbnail'] !== false && ! is_file($link['thumbnail'])))
) {
$item = $LINKSDB[$key];
$item['thumbnail'] = $thumbnailer->get($link['url']);
$LINKSDB[$key] = $item;
$newThumbnailsCpt++;
}
if (isset($link['thumbnail']) && $link['thumbnail'] !== false) {
$linksToDisplay[] = $link; // Add to array.
}
// If we retrieved new thumbnails, we update the database every 20 links.
// Downloading everything the first time may take a very long time
if ($newThumbnailsCpt == 20) {
$LINKSDB->save($conf->get('resource.page_cache'));
$newThumbnailsCpt = 0;
}
}
if ($newThumbnailsCpt > 0) {
$LINKSDB->save($conf->get('resource.page_cache'));
}
$data = array(
'linksToDisplay' => $linksToDisplay,
);
$pluginManager->executeHooks('render_picwall', $data, array('loggedin' => $loginManager->isLoggedIn()));
foreach ($data as $key => $value) {
$PAGE->assign($key, $value);
}
$PAGE->assign('pagetitle', t('Picture wall') .' - '. $conf->get('general.title', 'Shaarli'));
$PAGE->renderPage('picwall');
exit;
}
// -------- Tag cloud
if ($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($_SERVER['HTTP_REFERER'])) { header('Location: ?searchtags='.urlencode($_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']);
}
elseif ($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']));
}
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'));
$PAGE->renderPage('changepassword');
exit;
}
}
// -------- User wants to change configuration
if ($targetPage == Router::$PAGE_CONFIGURE)
{
if (!empty($_POST['title']) )
{
if (!$sessionManager->checkToken($_POST['token'])) {
die(t('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']));
$conf->set('security.session_protection_disabled', !empty($_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['enableApi']));
$conf->set('api.secret', escape($_POST['apiSecret']));
$conf->set('translation.language', escape($_POST['language']));
$conf->set('thumbnails.enabled', extension_loaded('gd') && !empty($_POST['enableThumbnails']));
try {
$conf->write($loginManager->isLoggedIn());
$history->updateSettings();
invalidateCaches($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("'. t('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')));
list($continents, $cities) = generateTimeZoneData(
timezone_identifiers_list(),
$conf->get('general.timezone')
);
$PAGE->assign('continents', $continents);
$PAGE->assign('cities', $cities);
$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->assign('languages', Languages::getAvailableLanguages());
$PAGE->assign('language', $conf->get('translation.language'));
$PAGE->assign('gd_enabled', extension_loaded('gd'));
$PAGE->assign('pagetitle', t('Configure') .' - '. $conf->get('general.title', 'Shaarli'));
$PAGE->renderPage('configure');
exit;
}
}
// -------- User wants to rename a tag or delete it
if ($targetPage == Router::$PAGE_CHANGETAG)
{
if (empty($_POST['fromtag']) || (empty($_POST['totag']) && isset($_POST['renametag']))) {
$PAGE->assign('fromtag', ! empty($_GET['fromtag']) ? escape($_GET['fromtag']) : '');
$PAGE->assign('pagetitle', t('Manage tags') .' - '. $conf->get('general.title', 'Shaarli'));
$PAGE->renderPage('changetag');
exit;
}
if (!$sessionManager->checkToken($_POST['token'])) {
die(t('Wrong token.'));
}
$alteredLinks = $LINKSDB->renameTag(escape($_POST['fromtag']), escape($_POST['totag']));
$LINKSDB->save($conf->get('resource.page_cache'));
foreach ($alteredLinks as $link) {
$history->updateLink($link);
}
$delete = empty($_POST['totag']);
$redirect = $delete ? 'do=changetag' : 'searchtags='. urlencode(escape($_POST['totag']));
$count = count($alteredLinks);
$alert = $delete
? sprintf(t('The tag was removed from %d link.', 'The tag was removed from %d links.', $count), $count)
: sprintf(t('The tag was renamed in %d link.', 'The tag was renamed in %d links.', $count), $count);
echo '<script>alert("'. $alert .'");document.location=\'?'. $redirect .'\';</script>';
exit;
}
// -------- User wants to add a link without using the bookmarklet: Show form.
if ($targetPage == Router::$PAGE_ADDLINK)
{
$PAGE->assign('pagetitle', t('Shaare a new link') .' - '. $conf->get('general.title', 'Shaarli'));
$PAGE->renderPage('addlink');
exit;
}
// -------- User clicked the "Save" button when editing a link: Save link to database.
if (isset($_POST['save_edit']))
{
// Go away!
if (! $sessionManager->checkToken($_POST['token'])) {
die(t('Wrong token.'));
}
// lf_id should only be present if the link exists.
$id = isset($_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://shaarli.readthedocs.io/en/master/Various-hacks/#changing-the-timestamp-for-a-shaare
$linkdate = escape($_POST['lf_linkdate']);
if (isset($LINKSDB[$id])) {
// Edit
$created = DateTime::createFromFormat(LinkDB::LINK_DATE_FORMAT, $linkdate);
$updated = new DateTime();
$shortUrl = $LINKSDB[$id]['shorturl'];
$new = false;
} else {
// New link
$created = DateTime::createFromFormat(LinkDB::LINK_DATE_FORMAT, $linkdate);
$updated = null;
$shortUrl = link_small_hash($created, $id);
$new = true;
}
// 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(' ', $tags)));
if (empty(trim($_POST['lf_url']))) {
$_POST['lf_url'] = '?' . smallHash($linkdate . $id);
}
$url = whitelist_protocols(trim($_POST['lf_url']), $conf->get('security.allowed_protocols'));
$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'] = $link['url'];
}
if ($conf->get('thumbnails.enabled')) {
$thumbnailer = new Thumbnailer($conf);
$link['thumbnail'] = $thumbnailer->get($url);
}
$pluginManager->executeHooks('save_link', $link);
$LINKSDB[$id] = $link;
$LINKSDB->save($conf->get('resource.page_cache'));
if ($new) {
$history->addLink($link);
} else {
$history->updateLink($link);
}
// 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']))
{
$id = isset($_POST['lf_id']) ? (int) escape($_POST['lf_id']) : false;
if (! isset($LINKSDB[$id])) {
header('Location: ?');
}
// If we are called from the bookmarklet, we must close the popup:
if (isset($_GET['source']) && ($_GET['source']=='bookmarklet' || $_GET['source']=='firefoxsocialapi')) { echo '<script>self.close();</script>'; exit; }
$link = $LINKSDB[$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)
{
if (! $sessionManager->checkToken($_GET['token'])) {
die(t('Wrong token.'));
}
$ids = trim($_GET['lf_linkdate']);
if (strpos($ids, ' ') !== false) {
// multiple, space-separated ids provided
$ids = array_values(array_filter(preg_split('/\s+/', escape($ids))));
} else {
// only a single id provided
$ids = [$ids];
}
// assert at least one id is given
if(!count($ids)){
die('no id provided');
}
foreach ($ids as $id) {
$id = (int) escape($id);
$link = $LINKSDB[$id];
$pluginManager->executeHooks('delete_link', $link);
unset($LINKSDB[$id]);
}
$LINKSDB->save($conf->get('resource.page_cache')); // save to disk
$history->deleteLink($link);
// 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; }
$location = '?';
if (isset($_SERVER['HTTP_REFERER'])) {
// Don't redirect to where we were previously if it was a permalink or an edit_link, because it would 404.
$location = generateLocation(
$_SERVER['HTTP_REFERER'],
$_SERVER['HTTP_HOST'],
['delete_link', 'edit_link', $link['shorturl']]
);
}
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->linksCountPerTag(),
);
$pluginManager->executeHooks('render_editlink', $data);
foreach ($data as $key => $value) {
$PAGE->assign($key, $value);
}
$PAGE->assign('pagetitle', t('Edit') .' '. t('Shaare') .' - '. $conf->get('general.title', 'Shaarli'));
$PAGE->renderPage('editlink');
exit;
}
// -------- User want to post a new link: Display link edit form.
if (isset($_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
// The callback will fill $charset and $title with data from the downloaded page.
get_http_response(
$url,
$conf->get('general.download_timeout', 30),
$conf->get('general.download_max_size', 4194304),
get_curl_download_callback($charset, $title)
);
if (! empty($title) && strtolower($charset) != 'utf-8') {
$title = mb_convert_encoding($title, 'utf-8', $charset);
}
}
if ($url == '') {
$url = '?' . smallHash($linkdate . $LINKSDB->getNextId());
$title = $conf->get('general.default_note_title', t('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->linksCountPerTag(),
'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->assign('pagetitle', t('Shaare') .' - '. $conf->get('general.title', 'Shaarli'));
$PAGE->renderPage('editlink');
exit;
}
if ($targetPage == Router::$PAGE_EXPORT) {
// Export links as a Netscape Bookmarks file
if (empty($_GET['selection'])) {
$PAGE->assign('pagetitle', t('Export') .' - '. $conf->get('general.title', 'Shaarli'));
$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',
get_max_upload_size(
ini_get('post_max_size'),
ini_get('upload_max_filesize'),
false
)
);
$PAGE->assign(
'maxfilesizeHuman',
get_max_upload_size(
ini_get('post_max_size'),
ini_get('upload_max_filesize'),
true
)
);
$PAGE->assign('pagetitle', t('Import') .' - '. $conf->get('general.title', 'Shaarli'));
$PAGE->renderPage('import');
exit;
}
// Import bookmarks from an uploaded file
if (isset($_FILES['filetoupload']['size']) && $_FILES['filetoupload']['size'] == 0) {
// The file is too big or some form field may be missing.
$msg = sprintf(
t(
'The file you are trying to upload is probably bigger than what this webserver can accept'
.' (%s). Please upload in smaller chunks.'
),
get_max_upload_size(ini_get('post_max_size'), ini_get('upload_max_filesize'))
);
echo '<script>alert("'. $msg .'");document.location=\'?do='.Router::$PAGE_IMPORT .'\';</script>';
exit;
}
if (! $sessionManager->checkToken($_POST['token'])) {
die('Wrong token.');
}
$status = NetscapeBookmarkUtils::import(
$_POST,
$_FILES,
$LINKSDB,
$conf,
$history
);
echo '<script>alert("'.$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->assign('pagetitle', t('Plugin administration') .' - '. $conf->get('general.title', 'Shaarli'));
$PAGE->renderPage('pluginsadmin');
exit;
}
// Plugin administration form action
if ($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));
}
$conf->write($loginManager->isLoggedIn());
$history->updateSettings();
}
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::$PAGE_PLUGINSADMIN);
exit;
}
// Get a fresh token
if ($targetPage == Router::$GET_TOKEN) {
header('Content-Type:text/plain');
echo $sessionManager->generateToken($conf);
exit;
}
// -------- Otherwise, simply display search form and links:
showLinkList($PAGE, $LINKSDB, $conf, $pluginManager, $loginManager);
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.
* @param LoginManager $loginManager LoginManager instance
*/
function buildLinkList($PAGE, $LINKSDB, $conf, $pluginManager, $loginManager)
{
// Used in templates
if (isset($_GET['searchtags'])) {
if (! empty($_GET['searchtags'])) {
$searchtags = escape(normalize_spaces($_GET['searchtags']));
} else {
$searchtags = false;
}
} else {
$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.
$visibility = ! empty($_SESSION['visibility']) ? $_SESSION['visibility'] : '';
$request = [
'searchtags' => $searchtags,
'searchterm' => $searchterm,
];
$linksToDisplay = $LINKSDB->filterSearch($request, false, $visibility, !empty($_SESSION['untaggedonly']));
}
// ---- 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 + $_SESSION['LINKS_PER_PAGE'];
if ($conf->get('thumbnails.enabled')) {
$thumbnailer = new Thumbnailer($conf);
}
$linkDisp = array();
while ($i<$end && $i<count($keys))
{
$link = $linksToDisplay[$keys[$i]];
$link['description'] = format_description(
$link['description'],
$conf->get('redirector.url'),
$conf->get('redirector.encode_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'] = $taglist;
// Thumbnails enabled, not a note,
// and (never retrieved yet or no valid cache file)
if ($conf->get('thumbnails.enabled') && $link['url'][0] != '?'
&& (! isset($link['thumbnail']) || ($link['thumbnail'] !== false && ! is_file($link['thumbnail'])))
) {
$elem = $LINKSDB[$keys[$i]];
$elem['thumbnail'] = $thumbnailer->get($link['url']);
$LINKSDB[$keys[$i]] = $elem;
$updateDB = true;
$link['thumbnail'] = $elem['thumbnail'];
}
// Check for both signs of a note: starting with ? and 7 chars long.
if ($link['url'][0] === '?' && strlen($link['url']) === 7) {
$link['url'] = index_url($_SERVER) . $link['url'];
}
$linkDisp[$keys[$i]] = $link;
$i++;
}
// If we retrieved new thumbnails, we update the database.
if (!empty($updateDB)) {
$LINKSDB->save($conf->get('resource.page_cache'));
}
// Compute paging navigation
$searchtagsUrl = $searchtags === '' ? '' : '&searchtags=' . urlencode($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' => $searchtags,
'visibility' => ! empty($_SESSION['visibility']) ? $_SESSION['visibility'] : '',
'redirector' => $conf->get('redirector.url'), // Optional redirector URL.
'links' => $linkDisp,
);
// If there is only a single link, we change on-the-fly the title of the page.
if (count($linksToDisplay) == 1) {
$data['pagetitle'] = $linksToDisplay[$keys[0]]['title'] .' - '. $conf->get('general.title');
} elseif (! empty($searchterm) || ! empty($searchtags)) {
$data['pagetitle'] = t('Search: ');
$data['pagetitle'] .= ! empty($searchterm) ? $searchterm .' ' : '';
$bracketWrap = function ($tag) {
return '['. $tag .']';
};
$data['pagetitle'] .= ! empty($searchtags)
? implode(' ', array_map($bracketWrap, preg_split('/\s+/', $searchtags))).' '
: '';
$data['pagetitle'] .= '- '. $conf->get('general.title');
}
$pluginManager->executeHooks('render_linklist', $data, array('loggedin' => $loginManager->isLoggedIn()));
foreach ($data as $key => $value) {
$PAGE->assign($key, $value);
}
return;
}
/**
* Installation
* This function should NEVER be called if the file data/config.php exists.
*
* @param ConfigManager $conf Configuration Manager instance.
* @param SessionManager $sessionManager SessionManager instance
* @param LoginManager $loginManager LoginManager instance
*/
function install($conf, $sessionManager, $loginManager) {
// On free.fr host, make sure the /sessions directory exists, otherwise login will not work.
if (endsWith($_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.
$msg = t(
'<pre>Sessions do not seem to work correctly on your server.<br>'.
'Make sure the variable "session.save_path" is set correctly in your PHP config, '.
'and that you have write access to it.<br>'.
'It currently points to %s.<br>'.
'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>'
);
$msg = sprintf($msg, session_save_path());
echo $msg;
echo '<br><a href="?">'. t('Click to try again.') .'</a></pre>';
die;
}
if (!isset($_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)));
}
$conf->set('translation.language', escape($_POST['language']));
$conf->set('updates.check_updates', !empty($_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.
$conf->write($loginManager->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;
}
$PAGE = new PageBuilder($conf, null, $sessionManager->generateToken());
list($continents, $cities) = generateTimeZoneData(timezone_identifiers_list(), date_default_timezone_get());
$PAGE->assign('continents', $continents);
$PAGE->assign('cities', $cities);
$PAGE->assign('languages', Languages::getAvailableLanguages());
$PAGE->renderPage('install');
exit;
}
if (isset($_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);
}
try {
$history = new History($conf->get('resource.history'));
} catch(Exception $e) {
die($e->getMessage());
}
$linkDb = new LinkDB(
$conf->get('resource.datastore'),
$loginManager->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;
$container['history'] = $history;
$app = new \Slim\App($container);
// REST API routes
$app->group('/api/v1', function() {
$this->get('/info', '\Shaarli\Api\Controllers\Info:getInfo')->setName('getInfo');
$this->get('/links', '\Shaarli\Api\Controllers\Links:getLinks')->setName('getLinks');
$this->get('/links/{id:[\d]+}', '\Shaarli\Api\Controllers\Links:getLink')->setName('getLink');
$this->post('/links', '\Shaarli\Api\Controllers\Links:postLink')->setName('postLink');
$this->put('/links/{id:[\d]+}', '\Shaarli\Api\Controllers\Links:putLink')->setName('putLink');
$this->delete('/links/{id:[\d]+}', '\Shaarli\Api\Controllers\Links:deleteLink')->setName('deleteLink');
$this->get('/history', '\Shaarli\Api\Controllers\History:getHistory')->setName('getHistory');
})->add('\Shaarli\Api\ApiMiddleware');
$response = $app->run(true);
// Hack to make Slim and Shaarli router work together:
// If a Slim route isn't found and NOT API call, we call renderPage().
if ($response->getStatusCode() == 404 && strpos($_SERVER['REQUEST_URI'], '/api/v1') === false) {
// We use UTF-8 for proper international characters handling.
header('Content-Type: text/html; charset=utf-8');
renderPage($conf, $pluginManager, $linkDb, $history, $sessionManager, $loginManager);
} else {
$app->respond($response);
}
