/shaarli/ define('WEB_PATH', substr($_SERVER["REQUEST_URI"], 0, 1+strrpos($_SERVER["REQUEST_URI"], '/', 0))); // PHP Settings ini_set('max_input_time','60'); // High execution time in case of problematic imports/exports. ini_set('memory_limit', '128M'); // Try to set max upload file size and read (May not work on some hosts). ini_set('post_max_size', '16M'); ini_set('upload_max_filesize', '16M'); error_reporting(E_ALL^E_WARNING); // See all error except warnings. //error_reporting(-1); // See all errors (for debugging only) // User configuration if (is_file($GLOBALS['config']['CONFIG_FILE'])) { require_once $GLOBALS['config']['CONFIG_FILE']; } // Shaarli library require_once 'application/Cache.php'; require_once 'application/CachedPage.php'; require_once 'application/HttpUtils.php'; require_once 'application/LinkDB.php'; require_once 'application/TimeZone.php'; require_once 'application/Url.php'; require_once 'application/Utils.php'; require_once 'application/Config.php'; // Ensure the PHP version is supported try { checkPHPVersion('5.3', PHP_VERSION); } catch(Exception $e) { header('Content-Type: text/plain; charset=utf-8'); echo $e->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); $_COOKIE['shaarli'] = session_id(); } include "inc/rain.tpl.class.php"; //include Rain TPL raintpl::$tpl_dir = $GLOBALS['config']['RAINTPL_TPL']; // template directory raintpl::$cache_dir = $GLOBALS['config']['RAINTPL_TMP']; // cache directory ob_start(); // Output buffering for the page cache. // In case stupid admin has left magic_quotes enabled in php.ini: if (get_magic_quotes_gpc()) { function stripslashes_deep($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', $_COOKIE); } // Prevent caching on client side or proxy: (yes, it's ugly) header("Last-Modified: " . gmdate("D, d M Y H:i:s") . " GMT"); header("Cache-Control: no-store, no-cache, must-revalidate"); header("Cache-Control: post-check=0, pre-check=0", false); header("Pragma: no-cache"); // Directories creations (Note that your web host may require different rights than 705.) if (!is_writable(realpath(dirname(__FILE__)))) die('
ERROR: Shaarli does not have the right to write in its own directory.
'); // Handling of old config file which do not have the new parameters. if (empty($GLOBALS['title'])) $GLOBALS['title']='Shared links on '.escape(indexUrl()); if (empty($GLOBALS['timezone'])) $GLOBALS['timezone']=date_default_timezone_get(); if (empty($GLOBALS['redirector'])) $GLOBALS['redirector']=''; if (empty($GLOBALS['disablesessionprotection'])) $GLOBALS['disablesessionprotection']=false; if (empty($GLOBALS['privateLinkByDefault'])) $GLOBALS['privateLinkByDefault']=false; if (empty($GLOBALS['titleLink'])) $GLOBALS['titleLink']='?'; // I really need to rewrite Shaarli with a proper configuation manager. // Run config screen if first run: if (! is_file($GLOBALS['config']['CONFIG_FILE'])) { install(); } $GLOBALS['title'] = !empty($GLOBALS['title']) ? escape($GLOBALS['title']) : ''; $GLOBALS['titleLink'] = !empty($GLOBALS['titleLink']) ? escape($GLOBALS['titleLink']) : ''; $GLOBALS['redirector'] = !empty($GLOBALS['redirector']) ? escape($GLOBALS['redirector']) : ''; // a token depending of deployment salt, user password, and the current ip define('STAY_SIGNED_IN_TOKEN', sha1($GLOBALS['hash'].$_SERVER["REMOTE_ADDR"].$GLOBALS['salt'])); autoLocale(); // Sniff browser language and set date format accordingly. header('Content-Type: text/html; charset=utf-8'); // We use UTF-8 for proper international characters handling. //================================================================================================== // Checking session state (i.e. is the user still logged in) //================================================================================================== function setup_login_state() { $userIsLoggedIn = false; // By default, we do not consider the user as logged in; $loginFailure = false; // If set to true, every attempt to authenticate the user will fail. This indicates that an important condition isn't met. if ($GLOBALS['config']['OPEN_SHAARLI']) { $userIsLoggedIn = true; } if (!isset($GLOBALS['login'])) { $userIsLoggedIn = false; // Shaarli is not configured yet. $loginFailure = true; } if (isset($_COOKIE['shaarli_staySignedIn']) && $_COOKIE['shaarli_staySignedIn']===STAY_SIGNED_IN_TOKEN && !$loginFailure) { fillSessionInfo(); $userIsLoggedIn = true; } // If session does not exist on server side, or IP address has changed, or session has expired, logout. if (empty($_SESSION['uid']) || ($GLOBALS['disablesessionprotection']==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; } $userIsLoggedIn = setup_login_state(); // Checks if an update is available for Shaarli. // (at most once a day, and only for registered user.) // Output: '' = no new version. // other= the available version. function checkUpdate() { if (!isLoggedIn()) return ''; // Do not check versions for visitors. if (empty($GLOBALS['config']['ENABLE_UPDATECHECK'])) return ''; // Do not check if the user doesn't want to. // Get latest version number at most once a day. if (!is_file($GLOBALS['config']['UPDATECHECK_FILENAME']) || (filemtime($GLOBALS['config']['UPDATECHECK_FILENAME'])', '', str_replace('$1',$url); } // This function inserts   where relevant so that multiple spaces are properly displayed in HTML // even in the absence of
  (This is used in description to keep text formatting)
function keepMultipleSpaces($text)
{
    return str_replace('  ','  ',$text);

}
// ------------------------------------------------------------------------------------------
// Sniff browser language to display dates in the right format automatically.
// (Note that is may not work on your server if the corresponding local is not installed.)
function autoLocale()
{
    $attempts = array('en_US'); // Default if browser does not send HTTP_ACCEPT_LANGUAGE
    if (isset($_SERVER['HTTP_ACCEPT_LANGUAGE'])) // e.g. "fr,fr-fr;q=0.8,en;q=0.5,en-us;q=0.3"
    {   // (It's a bit crude, but it works very well. Preferred language is always presented first.)
        if (preg_match('/([a-z]{2})-?([a-z]{2})?/i',$_SERVER['HTTP_ACCEPT_LANGUAGE'],$matches)) {
            $loc = $matches[1] . (!empty($matches[2]) ? '_' . strtoupper($matches[2]) : '');
            $attempts = array($loc.'.UTF-8', $loc, str_replace('_', '-', $loc).'.UTF-8', str_replace('_', '-', $loc),
                $loc . '_' . strtoupper($loc).'.UTF-8', $loc . '_' . strtoupper($loc),
                $loc . '_' . $loc.'.UTF-8', $loc . '_' . $loc, $loc . '-' . strtoupper($loc).'.UTF-8',
                $loc . '-' . strtoupper($loc), $loc . '-' . $loc.'.UTF-8', $loc . '-' . $loc);
        }
    }
    setlocale(LC_TIME, $attempts);  // LC_TIME = Set local for date/time format only.
}

// ------------------------------------------------------------------------------------------
// PubSubHubbub protocol support (if enabled)  [UNTESTED]
// (Source: http://aldarone.fr/les-flux-rss-shaarli-et-pubsubhubbub/ )
if (!empty($GLOBALS['config']['PUBSUBHUB_URL'])) include './publisher.php';
function pubsubhub()
{
    if (!empty($GLOBALS['config']['PUBSUBHUB_URL']))
    {
       $p = new Publisher($GLOBALS['config']['PUBSUBHUB_URL']);
       $topic_url = array (
                       indexUrl().'?do=atom',
                       indexUrl().'?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;
}

function fillSessionInfo() {
	$_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.
	$_SESSION['username']=$GLOBALS['login'];
	$_SESSION['expires_on']=time()+INACTIVITY_TIMEOUT;  // Set session expiration.
}

// Check that user/password is correct.
function check_auth($login,$password)
{
    $hash = sha1($password.$login.$GLOBALS['salt']);
    if ($login==$GLOBALS['login'] && $hash==$GLOBALS['hash'])
    {   // Login/password is correct.
		fillSessionInfo();
        logm('Login successful');
        return True;
    }
    logm('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($GLOBALS['config']['IPBANS_FILENAME'])) file_put_contents($GLOBALS['config']['IPBANS_FILENAME'], "array(),'BANS'=>array()),true).";\n?>");
include $GLOBALS['config']['IPBANS_FILENAME'];
// Signal a failed login. Will ban the IP if too many failures:
function ban_loginFailed()
{
    $ip=$_SERVER["REMOTE_ADDR"]; $gb=$GLOBALS['IPBANS'];
    if (!isset($gb['FAILURES'][$ip])) $gb['FAILURES'][$ip]=0;
    $gb['FAILURES'][$ip]++;
    if ($gb['FAILURES'][$ip]>($GLOBALS['config']['BAN_AFTER']-1))
    {
        $gb['BANS'][$ip]=time()+$GLOBALS['config']['BAN_DURATION'];
        logm('IP address banned from login');
    }
    $GLOBALS['IPBANS'] = $gb;
    file_put_contents($GLOBALS['config']['IPBANS_FILENAME'], "");
}

// Signals a successful login. Resets failed login counter.
function ban_loginOk()
{
    $ip=$_SERVER["REMOTE_ADDR"]; $gb=$GLOBALS['IPBANS'];
    unset($gb['FAILURES'][$ip]); unset($gb['BANS'][$ip]);
    $GLOBALS['IPBANS'] = $gb;
    file_put_contents($GLOBALS['config']['IPBANS_FILENAME'], "");
}

// Checks if the user CAN login. If 'true', the user can try to login.
function ban_canLogin()
{
    $ip=$_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('Ban lifted.');
            unset($gb['FAILURES'][$ip]); unset($gb['BANS'][$ip]);
            file_put_contents($GLOBALS['config']['IPBANS_FILENAME'], "");
            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($_POST['login']))
{
    if (!ban_canLogin()) die('I said: NO. You are banned for the moment. Go away.');
    if (isset($_POST['password']) && tokenOk($_POST['token']) && (check_auth($_POST['login'], $_POST['password'])))
    {   // Login/password is OK.
        ban_loginOk();
        // If user wants to keep the session cookie even after the browser closes:
        if (!empty($_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: '. escape($_POST['returnurl']));
                exit;
            }
        }
        header('Location: ?'); exit;
    }
    else
    {
        ban_loginFailed();
        $redir = '';
        if (isset($_GET['post'])) {
            $redir = '?post=' . urlencode($_GET['post']);
            foreach (array('description', 'source', 'title') as $param) {
                if (!empty($_GET[$param])) {
                    $redir .= '&' . $param . '=' . urlencode($_GET[$param]);
                }
            }
        }
        echo ''; // Redirect to login screen.
        exit;
    }
}

// ------------------------------------------------------------------------------------------
// Misc utility functions:

// Returns the server URL (including port and http/https), without path.
// e.g. "http://myserver.com:8080"
// You can append $_SERVER['SCRIPT_NAME'] to get the current script URL.
function serverUrl()
{
    $https = (!empty($_SERVER['HTTPS']) && (strtolower($_SERVER['HTTPS'])=='on')) || $_SERVER["SERVER_PORT"]=='443'; // HTTPS detection.
    $serverport = ($_SERVER["SERVER_PORT"]=='80' || ($https && $_SERVER["SERVER_PORT"]=='443') ? '' : ':'.$_SERVER["SERVER_PORT"]);
    return 'http'.($https?'s':'').'://'.$_SERVER['SERVER_NAME'].$serverport;
}

// Returns the absolute URL of current script, without the query.
// (e.g. http://sebsauvage.net/links/)
function indexUrl()
{
    $scriptname = $_SERVER["SCRIPT_NAME"];
    // If the script is named 'index.php', we remove it (for better looking URLs,
    // e.g. http://mysite.com/shaarli/?abcde instead of http://mysite.com/shaarli/index.php?abcde)
    if (endswith($scriptname,'index.php')) $scriptname = substr($scriptname,0,strlen($scriptname)-9);
    return serverUrl() . $scriptname;
}

// Returns the absolute URL of current script, WITH the query.
// (e.g. http://sebsauvage.net/links/?toto=titi&spamspamspam=humbug)
function pageUrl()
{
    return indexUrl().(!empty($_SERVER["QUERY_STRING"]) ? '?'.$_SERVER["QUERY_STRING"] : '');
}

// 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;
}

/*  Converts a linkdate time (YYYYMMDD_HHMMSS) of an article to a timestamp (Unix epoch)
    (used to build the ADD_DATE attribute in Netscape-bookmarks file)
    PS: I could have used strptime(), but it does not exist on Windows. I'm too kind. */
function linkdate2timestamp($linkdate)
{
    if(strcmp($linkdate, '_000000') !== 0 || !$linkdate){
        $Y=$M=$D=$h=$m=$s=0;
        $r = sscanf($linkdate,'%4d%2d%2d_%2d%2d%2d',$Y,$M,$D,$h,$m,$s);
        return mktime($h,$m,$s,$M,$D,$Y);
    }
    return time();
}

/*  Converts a linkdate time (YYYYMMDD_HHMMSS) of an article to a RFC822 date.
    (used to build the pubDate attribute in RSS feed.)  */
function linkdate2rfc822($linkdate)
{
    return date('r',linkdate2timestamp($linkdate)); // 'r' is for RFC822 date format.
}

/*  Converts a linkdate time (YYYYMMDD_HHMMSS) of an article to a ISO 8601 date.
    (used to build the updated tags in ATOM feed.)  */
function linkdate2iso8601($linkdate)
{
    return date('c',linkdate2timestamp($linkdate)); // 'c' is for ISO 8601 date format.
}

// Extract title from an HTML document.
// (Returns an empty string if not found.)
function html_extract_title($html)
{
  return preg_match('!(.*?)!is', $html, $matches) ? trim(str_replace("\n",' ', $matches[1])) : '' ;
}

// ------------------------------------------------------------------------------------------
// 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.
function getToken()
{
    $rnd = sha1(uniqid('',true).'_'.mt_rand().$GLOBALS['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.
}

// ------------------------------------------------------------------------------------------
/* This class is in charge of building the final page.
   (This is basically a wrapper around RainTPL which pre-fills some fields.)
   p = new pageBuilder;
   p.assign('myfield','myvalue');
   p.renderPage('mytemplate');

*/
class pageBuilder
{
    private $tpl; // RainTPL template

    function __construct()
    {
        $this->tpl=false;
    }

    private function initialize()
    {
        $this->tpl = new RainTPL;
        $this->tpl->assign('newversion',escape(checkUpdate()));
        $this->tpl->assign('feedurl',escape(indexUrl()));
        $searchcrits=''; // Search criteria
        if (!empty($_GET['searchtags'])) $searchcrits.='&searchtags='.urlencode($_GET['searchtags']);
        elseif (!empty($_GET['searchterm'])) $searchcrits.='&searchterm='.urlencode($_GET['searchterm']);
        $this->tpl->assign('searchcrits',$searchcrits);
        $this->tpl->assign('source',indexUrl());
        $this->tpl->assign('version',shaarli_version);
        $this->tpl->assign('scripturl',indexUrl());
        $this->tpl->assign('pagetitle','Shaarli');
        $this->tpl->assign('privateonly',!empty($_SESSION['privateonly'])); // Show only private links?
        if (!empty($GLOBALS['title'])) $this->tpl->assign('pagetitle',$GLOBALS['title']);
        if (!empty($GLOBALS['titleLink'])) $this->tpl->assign('titleLink',$GLOBALS['titleLink']);
        if (!empty($GLOBALS['pagetitle'])) $this->tpl->assign('pagetitle',$GLOBALS['pagetitle']);
        $this->tpl->assign('shaarlititle',empty($GLOBALS['title']) ? 'Shaarli': $GLOBALS['title'] );
        return;
    }

    // The following assign() method is basically the same as RainTPL (except that it's lazy)
    public function assign($what,$where)
    {
        if ($this->tpl===false) $this->initialize(); // Lazy initialization
        $this->tpl->assign($what,$where);
    }

    // Render a specific page (using a template).
    // e.g. pb.renderPage('picwall')
    public function renderPage($page)
    {
        if ($this->tpl===false) $this->initialize(); // Lazy initialization
        $this->tpl->draw($page);
    }
}

// ------------------------------------------------------------------------------------------
// Output the last N links in RSS 2.0 format.
function showRSS()
{
    header('Content-Type: application/rss+xml; charset=utf-8');

    // $usepermalink : If true, use permalink instead of final link.
    // User just has to add 'permalink' in URL parameters. e.g. http://mysite.com/shaarli/?do=rss&permalinks
    // Also enabled through a config option
    $usepermalinks = isset($_GET['permalinks']) || !$GLOBALS['config']['ENABLE_RSS_PERMALINKS'];

    // Cache system
    $query = $_SERVER["QUERY_STRING"];
    $cache = new CachedPage(
        $GLOBALS['config']['PAGECACHE'],
        pageUrl(),
        startsWith($query,'do=rss') && !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:
    $LINKSDB = new LinkDB(
        $GLOBALS['config']['DATASTORE'],
        isLoggedIn() || $GLOBALS['config']['OPEN_SHAARLI'],
        $GLOBALS['config']['HIDE_PUBLIC_LINKS']
    );
    // Read links from database (and filter private links if user it not logged in).

    // Optionally filter the results:
    $linksToDisplay=array();
    if (!empty($_GET['searchterm'])) $linksToDisplay = $LINKSDB->filterFulltext($_GET['searchterm']);
    else if (!empty($_GET['searchtags']))   $linksToDisplay = $LINKSDB->filterTags(trim($_GET['searchtags']));
    else $linksToDisplay = $LINKSDB;

    $nblinksToDisplay = 50;  // Number of links to display.
    if (!empty($_GET['nb']))  // In URL, you can specificy the number of links. Example: nb=200 or nb=all for all links.
    {
        $nblinksToDisplay = $_GET['nb']=='all' ? count($linksToDisplay) : max($_GET['nb']+0,1) ;
    }

    $pageaddr=escape(indexUrl());
    echo '';
    echo ''.$GLOBALS['title'].''.$pageaddr.'';
    echo 'Shared linksen-en'.$pageaddr.''."\n\n";
    if (!empty($GLOBALS['config']['PUBSUBHUB_URL']))
    {
        echo '';
        echo '';
        echo '';
        echo '';
    }
    $i=0;
    $keys=array(); foreach($linksToDisplay as $key=>$value) { $keys[]=$key; }  // No, I can't use array_keys().
    while ($i<$nblinksToDisplay && $i'.$link['title'].''.$guid.''.$guid.'';
        else
            echo ''.$link['title'].''.$guid.''.$absurl.'';
        if (!$GLOBALS['config']['HIDE_TIMESTAMPS'] || isLoggedIn()) echo ''.escape($rfc822date)."\n";
        if ($link['tags']!='') // Adding tags to each RSS entry (as mentioned in RSS specification)
        {
            foreach(explode(' ',$link['tags']) as $tag) { echo ''.$tag.''."\n"; }
        }

        // Add permalink in description
        $descriptionlink = '(Permalink)';
        // If user wants permalinks first, put the final link in description
        if ($usepermalinks===true) $descriptionlink = '(Link)';
        if (strlen($link['description'])>0) $descriptionlink = '
'.$descriptionlink; echo ''."\n
\n"; $i++; } echo '
'; $cache->cache(ob_get_contents()); ob_end_flush(); exit; } // ------------------------------------------------------------------------------------------ // Output the last N links in ATOM format. function showATOM() { header('Content-Type: application/atom+xml; charset=utf-8'); // $usepermalink : If true, use permalink instead of final link. // User just has to add 'permalink' in URL parameters. e.g. http://mysite.com/shaarli/?do=atom&permalinks $usepermalinks = isset($_GET['permalinks']) || !$GLOBALS['config']['ENABLE_RSS_PERMALINKS']; // Cache system $query = $_SERVER["QUERY_STRING"]; $cache = new CachedPage( $GLOBALS['config']['PAGECACHE'], pageUrl(), startsWith($query,'do=atom') && !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( $GLOBALS['config']['DATASTORE'], isLoggedIn() || $GLOBALS['config']['OPEN_SHAARLI'], $GLOBALS['config']['HIDE_PUBLIC_LINKS'] ); // Optionally filter the results: $linksToDisplay=array(); if (!empty($_GET['searchterm'])) $linksToDisplay = $LINKSDB->filterFulltext($_GET['searchterm']); else if (!empty($_GET['searchtags'])) $linksToDisplay = $LINKSDB->filterTags(trim($_GET['searchtags'])); else $linksToDisplay = $LINKSDB; $nblinksToDisplay = 50; // Number of links to display. if (!empty($_GET['nb'])) // In URL, you can specificy the number of links. Example: nb=200 or nb=all for all links. { $nblinksToDisplay = $_GET['nb']=='all' ? count($linksToDisplay) : max($_GET['nb']+0,1) ; } $pageaddr=escape(indexUrl()); $latestDate = ''; $entries=''; $i=0; $keys=array(); foreach($linksToDisplay as $key=>$value) { $keys[]=$key; } // No, I can't use array_keys(). while ($i<$nblinksToDisplay && $i'; if ($usepermalinks===true) $entries.=''.$guid.''; else $entries.=''.$guid.''; if (!$GLOBALS['config']['HIDE_TIMESTAMPS'] || isLoggedIn()) $entries.=''.escape($iso8601date).''; // Add permalink in description $descriptionlink = '(Permalink)'; // If user wants permalinks first, put the final link in description if ($usepermalinks===true) $descriptionlink = '(Link)'; if (strlen($link['description'])>0) $descriptionlink = '
'.$descriptionlink; $entries.='\n"; if ($link['tags']!='') // Adding tags to each ATOM entry (as mentioned in ATOM specification) { foreach(explode(' ',$link['tags']) as $tag) { $entries.=''."\n"; } } $entries.="\n"; $i++; } $feed=''; $feed.=''.$GLOBALS['title'].''; if (!$GLOBALS['config']['HIDE_TIMESTAMPS'] || isLoggedIn()) $feed.=''.escape($latestDate).''; $feed.=''; if (!empty($GLOBALS['config']['PUBSUBHUB_URL'])) { $feed.=''; $feed.=''; $feed.=''; } $feed.=''.$pageaddr.''.$pageaddr.''; $feed.=''.$pageaddr.''."\n\n"; // Yes, I know I should use a real IRI (RFC3987), but the site URL will do. $feed.=$entries; $feed.=''; echo $feed; $cache->cache(ob_get_contents()); ob_end_flush(); exit; } // ------------------------------------------------------------------------------------------ // 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. function showDailyRSS() { // Cache system $query = $_SERVER["QUERY_STRING"]; $cache = new CachedPage( $GLOBALS['config']['PAGECACHE'], pageUrl(), startsWith($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( $GLOBALS['config']['DATASTORE'], isLoggedIn() || $GLOBALS['config']['OPEN_SHAARLI'], $GLOBALS['config']['HIDE_PUBLIC_LINKS'] ); /* Some Shaarlies may have very few links, so we need to look back in time (rsort()) until we have enough days ($nb_of_days). */ $linkdates = array(); foreach ($LINKSDB as $linkdate => $value) { $linkdates[] = $linkdate; } rsort($linkdates); $nb_of_days = 7; // We take 7 days. $today = Date('Ymd'); $days = array(); foreach ($linkdates as $linkdate) { $day = substr($linkdate, 0, 8); // Extract day (without time) if (strcmp($day,$today) < 0) { if (empty($days[$day])) { $days[$day] = array(); } $days[$day][] = $linkdate; } if (count($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(indexUrl()); echo ''; echo ''; echo 'Daily - '. $GLOBALS['title'] . ''; echo ''. $pageaddr .''; echo 'Daily shared links'; echo 'en-en'; echo ''. $pageaddr .''. PHP_EOL; // For each day. foreach ($days as $day => $linkdates) { $daydate = linkdate2timestamp($day.'_000000'); // Full text date $rfc822date = linkdate2rfc822($day.'_000000'); $absurl = escape(indexUrl().'?do=daily&day='.$day); // Absolute URL of the corresponding "Daily" page. // Build the HTML body of this RSS entry. $html = ''; $href = ''; $links = array(); // We pre-format some fields for proper output. foreach ($linkdates as $linkdate) { $l = $LINKSDB[$linkdate]; $l['formatedDescription'] = nl2br(keepMultipleSpaces(text2clickable($l['description']))); $l['thumbnail'] = thumbnail($l['url']); $l['timestamp'] = linkdate2timestamp($l['linkdate']); if (startsWith($l['url'], '?')) { $l['url'] = indexUrl() . $l['url']; // make permalink URL absolute } $links[$linkdate] = $l; } // Then build the HTML for this day: $tpl = new RainTPL; $tpl->assign('title', $GLOBALS['title']); $tpl->assign('daydate', $daydate); $tpl->assign('absurl', $absurl); $tpl->assign('links', $links); $tpl->assign('rfc822date', escape($rfc822date)); $html = $tpl->draw('dailyrss', $return_string=true); echo $html . PHP_EOL; } echo ''; $cache->cache(ob_get_contents()); ob_end_flush(); exit; } // "Daily" page. function showDaily() { $LINKSDB = new LinkDB( $GLOBALS['config']['DATASTORE'], isLoggedIn() || $GLOBALS['config']['OPEN_SHAARLI'], $GLOBALS['config']['HIDE_PUBLIC_LINKS'] ); $day=Date('Ymd',strtotime('-1 day')); // Yesterday, in format YYYYMMDD. if (isset($_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[$i-1]; if ($ifilterDay($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']=nl2br(keepMultipleSpaces(text2clickable($link['description']))); $linksToDisplay[$key]['thumbnail'] = thumbnail($link['url']); $linksToDisplay[$key]['timestamp'] = linkdate2timestamp($link['linkdate']); } /* 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; } $PAGE = new pageBuilder; $PAGE->assign('linksToDisplay',$linksToDisplay); $PAGE->assign('linkcount',count($LINKSDB)); $PAGE->assign('cols', $columns); $PAGE->assign('day',linkdate2timestamp($day.'_000000')); $PAGE->assign('previousday',$previousday); $PAGE->assign('nextday',$nextday); $PAGE->renderPage('daily'); exit; } // ------------------------------------------------------------------------------------------ // Render HTML page (according to URL parameters and user rights) function renderPage() { $LINKSDB = new LinkDB( $GLOBALS['config']['DATASTORE'], isLoggedIn() || $GLOBALS['config']['OPEN_SHAARLI'], $GLOBALS['config']['HIDE_PUBLIC_LINKS'] ); // -------- Display login form. if (isset($_SERVER["QUERY_STRING"]) && startswith($_SERVER["QUERY_STRING"],'do=login')) { if ($GLOBALS['config']['OPEN_SHAARLI']) { header('Location: ?'); exit; } // No need to login for open Shaarli $token=''; if (ban_canLogin()) $token=getToken(); // Do not waste token generation if not useful. $PAGE = new pageBuilder; $PAGE->assign('token',$token); $PAGE->assign('returnurl',(isset($_SERVER['HTTP_REFERER']) ? escape($_SERVER['HTTP_REFERER']):'')); $PAGE->renderPage('loginform'); exit; } // -------- User wants to logout. if (isset($_SERVER["QUERY_STRING"]) && startswith($_SERVER["QUERY_STRING"],'do=logout')) { invalidateCaches($GLOBALS['config']['PAGECACHE']); logout(); header('Location: ?'); exit; } // -------- Picture wall if (isset($_SERVER["QUERY_STRING"]) && startswith($_SERVER["QUERY_STRING"],'do=picwall')) { // Optionally filter the results: $links=array(); if (!empty($_GET['searchterm'])) $links = $LINKSDB->filterFulltext($_GET['searchterm']); elseif (!empty($_GET['searchtags'])) $links = $LINKSDB->filterTags(trim($_GET['searchtags'])); else $links = $LINKSDB; $body=''; $linksToDisplay=array(); // Get only links which have a thumbnail. foreach($links as $link) { $permalink='?'.escape(smallhash($link['linkdate'])); $thumb=lazyThumbnail($link['url'],$permalink); if ($thumb!='') // Only output links which have a thumbnail. { $link['thumbnail']=$thumb; // Thumbnail HTML code. $linksToDisplay[]=$link; // Add to array. } } $PAGE = new pageBuilder; $PAGE->assign('linkcount',count($LINKSDB)); $PAGE->assign('linksToDisplay',$linksToDisplay); $PAGE->renderPage('picwall'); exit; } // -------- Tag cloud if (isset($_SERVER["QUERY_STRING"]) && startswith($_SERVER["QUERY_STRING"],'do=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 $key=>$value) $maxcount=max($maxcount,$value); ksort($tags); $tagList=array(); foreach($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. { $tagList[$key] = array('count'=>$value,'size'=>log($value, 15) / log($maxcount, 30) * (22-6) + 6); } $PAGE = new pageBuilder; $PAGE->assign('linkcount',count($LINKSDB)); $PAGE->assign('tags',$tagList); $PAGE->renderPage('tagcloud'); exit; } // -------- User clicks on a tag in a link: The tag is added to the list of searched tags (searchtags=...) if (isset($_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']); $tags=array_diff($tags, array($_GET['removetag'])); // Remove value from array $tags. if (count($tags)==0) { unset($params['searchtags']); } else { $params['searchtags'] = implode(' ',$tags); } 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($_GET['source']):'')); // Redirect to login page, then back to post link. exit; } // Same case as above except that user tried to access ?do=addlink without being logged in // Note: passing empty parameters makes Shaarli generate default URLs and descriptions. if (isset($_GET['do']) && $_GET['do'] === 'addlink') { header('Location: ?do=login&post='); exit; } if (isset($_GET['edit_link'])) { header('Location: ?do=login&edit_link='. escape($_GET['edit_link'])); exit; } $PAGE = new pageBuilder; buildLinkList($PAGE,$LINKSDB); // Compute list of links to display $PAGE->renderPage('linklist'); exit; // Never remove this one! All operations below are reserved for logged in user. } // -------- All other functions are reserved for the registered user: // -------- Display the Tools menu if requested (import/export/bookmarklet...) if (isset($_SERVER["QUERY_STRING"]) && startswith($_SERVER["QUERY_STRING"],'do=tools')) { $PAGE = new pageBuilder; $PAGE->assign('linkcount',count($LINKSDB)); $PAGE->assign('pageabsaddr',indexUrl()); $PAGE->renderPage('tools'); exit; } // -------- User wants to change his/her password. if (isset($_SERVER["QUERY_STRING"]) && startswith($_SERVER["QUERY_STRING"],'do=changepasswd')) { if ($GLOBALS['config']['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'].$GLOBALS['login'].$GLOBALS['salt']); if ($oldhash!=$GLOBALS['hash']) { echo ''; exit; } // Save new password $GLOBALS['salt'] = sha1(uniqid('',true).'_'.mt_rand()); // Salt renders rainbow-tables attacks useless. $GLOBALS['hash'] = sha1($_POST['setpassword'].$GLOBALS['login'].$GLOBALS['salt']); try { writeConfig($GLOBALS, 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 ''; exit; } echo ''; exit; } else // show the change password form. { $PAGE = new pageBuilder; $PAGE->assign('linkcount',count($LINKSDB)); $PAGE->assign('token',getToken()); $PAGE->renderPage('changepassword'); exit; } } // -------- User wants to change configuration if (isset($_SERVER["QUERY_STRING"]) && startswith($_SERVER["QUERY_STRING"],'do=configure')) { if (!empty($_POST['title']) ) { if (!tokenOk($_POST['token'])) die('Wrong token.'); // Go away! $tz = 'UTC'; if (!empty($_POST['continent']) && !empty($_POST['city'])) if (isTimeZoneValid($_POST['continent'],$_POST['city'])) $tz = $_POST['continent'].'/'.$_POST['city']; $GLOBALS['timezone'] = $tz; $GLOBALS['title']=$_POST['title']; $GLOBALS['titleLink']=$_POST['titleLink']; $GLOBALS['redirector']=$_POST['redirector']; $GLOBALS['disablesessionprotection']=!empty($_POST['disablesessionprotection']); $GLOBALS['privateLinkByDefault']=!empty($_POST['privateLinkByDefault']); $GLOBALS['config']['ENABLE_RSS_PERMALINKS']= !empty($_POST['enableRssPermalinks']); $GLOBALS['config']['ENABLE_UPDATECHECK'] = !empty($_POST['updateCheck']); $GLOBALS['config']['HIDE_PUBLIC_LINKS'] = !empty($_POST['hidePublicLinks']); try { writeConfig($GLOBALS, isLoggedIn()); } 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 ''; exit; } echo ''; exit; } else // Show the configuration form. { $PAGE = new pageBuilder; $PAGE->assign('linkcount',count($LINKSDB)); $PAGE->assign('token',getToken()); $PAGE->assign('title', empty($GLOBALS['title']) ? '' : $GLOBALS['title'] ); $PAGE->assign('redirector', empty($GLOBALS['redirector']) ? '' : $GLOBALS['redirector'] ); list($timezone_form, $timezone_js) = generateTimeZoneForm($GLOBALS['timezone']); $PAGE->assign('timezone_form', $timezone_form); $PAGE->assign('timezone_js',$timezone_js); $PAGE->renderPage('configure'); exit; } } // -------- User wants to rename a tag or delete it if (isset($_SERVER["QUERY_STRING"]) && startswith($_SERVER["QUERY_STRING"],'do=changetag')) { if (empty($_POST['fromtag'])) { $PAGE = new pageBuilder; $PAGE->assign('linkcount',count($LINKSDB)); $PAGE->assign('token',getToken()); $PAGE->assign('tags', $LINKSDB->allTags()); $PAGE->renderPage('changetag'); exit; } if (!tokenOk($_POST['token'])) die('Wrong token.'); // Delete a tag: if (!empty($_POST['deletetag']) && !empty($_POST['fromtag'])) { $needle=trim($_POST['fromtag']); $linksToAlter = $LINKSDB->filterTags($needle,true); // True for case-sensitive tag search. 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; } $LINKSDB->savedb($GLOBALS['config']['PAGECACHE']); // Save to disk. echo ''; exit; } // Rename a tag: if (!empty($_POST['renametag']) && !empty($_POST['fromtag']) && !empty($_POST['totag'])) { $needle=trim($_POST['fromtag']); $linksToAlter = $LINKSDB->filterTags($needle,true); // true for case-sensitive tag search. 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; } $LINKSDB->savedb($GLOBALS['config']['PAGECACHE']); // Save to disk. echo ''; exit; } } // -------- User wants to add a link without using the bookmarklet: Show form. if (isset($_SERVER["QUERY_STRING"]) && startswith($_SERVER["QUERY_STRING"],'do=addlink')) { $PAGE = new pageBuilder; $PAGE->assign('linkcount',count($LINKSDB)); $PAGE->renderPage('addlink'); exit; } // -------- User clicked the "Save" button when editing a link: Save link to database. if (isset($_POST['save_edit'])) { if (!tokenOk($_POST['token'])) die('Wrong token.'); // Go away! $tags = trim(preg_replace('/\s\s+/',' ', $_POST['lf_tags'])); // Remove multiple spaces. $tags = implode(' ', array_unique(explode(' ', $tags))); // Remove duplicates. $linkdate=$_POST['lf_linkdate']; $url = trim($_POST['lf_url']); if (!startsWith($url,'http:') && !startsWith($url,'https:') && !startsWith($url,'ftp:') && !startsWith($url,'magnet:') && !startsWith($url,'?') && !startsWith($url,'javascript:')) $url = 'http://'.$url; $link = array('title'=>trim($_POST['lf_title']),'url'=>$url,'description'=>trim($_POST['lf_description']),'private'=>(isset($_POST['lf_private']) ? 1 : 0), 'linkdate'=>$linkdate,'tags'=>str_replace(',',' ',$tags)); if ($link['title']=='') $link['title']=$link['url']; // If title is empty, use the URL as title. $LINKSDB[$linkdate] = $link; $LINKSDB->savedb($GLOBALS['config']['PAGECACHE']); // Save to disk. pubsubhub(); // If we are called from the bookmarklet, we must close the popup: if (isset($_GET['source']) && ($_GET['source']=='bookmarklet' || $_GET['source']=='firefoxsocialapi')) { echo ''; exit; } $returnurl = ( !empty($_POST['returnurl']) ? escape($_POST['returnurl']) : '?' ); $returnurl .= '#'.smallHash($_POST['lf_linkdate']); // Scroll to the link which has been edited. $location = generateLocation($returnurl, $_SERVER['HTTP_HOST'], array('addlink', 'post', 'edit_link')); header('Location: '. $location); // After saving the link, redirect to the page the user was on. exit; } // -------- User clicked the "Cancel" button when editing a link. if (isset($_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 ''; exit; } $returnurl = ( isset($_POST['returnurl']) ? $_POST['returnurl'] : '?' ); $returnurl .= '#'.smallHash($_POST['lf_linkdate']); // Scroll to the link which has been edited. $returnurl = generateLocation($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 (isset($_POST['delete_link'])) { if (!tokenOk($_POST['token'])) die('Wrong token.'); // We do not need to ask for confirmation: // - confirmation is handled by JavaScript // - we are protected from XSRF by the token. $linkdate=$_POST['lf_linkdate']; unset($LINKSDB[$linkdate]); $LINKSDB->savedb($GLOBALS['config']['PAGECACHE']); // 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 ''; 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'])) { $link = $LINKSDB[$_GET['edit_link']]; // Read database if (!$link) { header('Location: ?'); exit; } // Link not found in database. $PAGE = new pageBuilder; $PAGE->assign('linkcount',count($LINKSDB)); $PAGE->assign('link',$link); $PAGE->assign('link_is_new',false); $PAGE->assign('token',getToken()); // XSRF protection. $PAGE->assign('http_referer',(isset($_SERVER['HTTP_REFERER']) ? escape($_SERVER['HTTP_REFERER']) : '')); $PAGE->assign('tags', $LINKSDB->allTags()); $PAGE->renderPage('editlink'); exit; } // -------- User want to post a new link: Display link edit form. if (isset($_GET['post'])) { $url = new Url($_GET['post']); $url->cleanup(); $link_is_new = false; // Check if URL is not already in database (in this case, we will edit the existing link) $link = $LINKSDB->getLinkFromUrl((string)$url); if (!$link) { $link_is_new = true; $linkdate = strval(date('Ymd_His')); // Get title if it was provided in URL (by the bookmarklet). $title = (empty($_GET['title']) ? '' : $_GET['title'] ); // Get description if it was provided in URL (by the bookmarklet). [Bronco added that] $description = (empty($_GET['description']) ? '' : $_GET['description']); $tags = (empty($_GET['tags']) ? '' : $_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($url->getScheme(), 'http') !== false) { // Short timeout to keep the application responsive list($headers, $data) = get_http_url($url, 4); // FIXME: Decode charset according to specified in either 1) HTTP response headers or 2) in html if (strpos($headers[0], '200 OK') !== false) { // Look for charset in html header. preg_match('##Usi', $data, $meta); // If found, extract encoding. if (!empty($meta[0])) { // Get encoding specified in header. preg_match('#charset="?(.*)"#si', $meta[0], $enc); // If charset not found, use utf-8. $html_charset = (!empty($enc[1])) ? strtolower($enc[1]) : 'utf-8'; } else { $html_charset = 'utf-8'; } // Extract title $title = html_extract_title($data); if (!empty($title)) { // Re-encode title in utf-8 if necessary. $title = ($html_charset == 'iso-8859-1') ? utf8_encode($title) : $title; } } } if ($url == '') { $url = '?' . smallHash($linkdate); $title = 'Note: '; } $link = array( 'linkdate' => $linkdate, 'title' => $title, 'url' => (string)$url, 'description' => $description, 'tags' => $tags, 'private' => $private ); } $PAGE = new pageBuilder; $PAGE->assign('linkcount',count($LINKSDB)); $PAGE->assign('link',$link); $PAGE->assign('link_is_new',$link_is_new); $PAGE->assign('token',getToken()); // XSRF protection. $PAGE->assign('http_referer',(isset($_SERVER['HTTP_REFERER']) ? $_SERVER['HTTP_REFERER'] : '')); $PAGE->assign('source',(isset($_GET['source']) ? $_GET['source'] : '')); $PAGE->assign('tags', $LINKSDB->allTags()); $PAGE->renderPage('editlink'); exit; } // -------- Export as Netscape Bookmarks HTML file. if (isset($_SERVER["QUERY_STRING"]) && startswith($_SERVER["QUERY_STRING"],'do=export')) { if (empty($_GET['what'])) { $PAGE = new pageBuilder; $PAGE->assign('linkcount',count($LINKSDB)); $PAGE->renderPage('export'); exit; } $exportWhat=$_GET['what']; if (!array_intersect(array('all','public','private'),array($exportWhat))) die('What are you trying to export???'); header('Content-Type: text/html; charset=utf-8'); header('Content-disposition: attachment; filename=bookmarks_'.$exportWhat.'_'.strval(date('Ymd_His')).'.html'); $currentdate=date('Y/m/d H:i:s'); echo << Bookmarks

Bookmarks

HTML; foreach($LINKSDB as $link) { if ($exportWhat=='all' || ($exportWhat=='private' && $link['private']!=0) || ($exportWhat=='public' && $link['private']==0)) { echo '
'.$link['title']."\n"; if ($link['description']!='') echo '
'.$link['description']."\n"; } } exit; } // -------- User is uploading a file for import if (isset($_SERVER["QUERY_STRING"]) && startswith($_SERVER["QUERY_STRING"],'do=upload')) { // If file is too big, some form field may be missing. if (!isset($_POST['token']) || (!isset($_FILES)) || (isset($_FILES['filetoupload']['size']) && $_FILES['filetoupload']['size']==0)) { $returnurl = ( empty($_SERVER['HTTP_REFERER']) ? '?' : $_SERVER['HTTP_REFERER'] ); echo ''; exit; } if (!tokenOk($_POST['token'])) die('Wrong token.'); importFile(); exit; } // -------- Show upload/import dialog: if (isset($_SERVER["QUERY_STRING"]) && startswith($_SERVER["QUERY_STRING"],'do=import')) { $PAGE = new pageBuilder; $PAGE->assign('linkcount',count($LINKSDB)); $PAGE->assign('token',getToken()); $PAGE->assign('maxfilesize',getMaxFileSize()); $PAGE->renderPage('import'); exit; } // -------- Otherwise, simply display search form and links: $PAGE = new pageBuilder; buildLinkList($PAGE,$LINKSDB); // Compute list of links to display $PAGE->renderPage('linklist'); exit; } // ----------------------------------------------------------------------------------------------- // Process the import file form. function importFile() { if (!(isLoggedIn() || $GLOBALS['config']['OPEN_SHAARLI'])) { die('Not allowed.'); } $LINKSDB = new LinkDB( $GLOBALS['config']['DATASTORE'], isLoggedIn() || $GLOBALS['config']['OPEN_SHAARLI'], $GLOBALS['config']['HIDE_PUBLIC_LINKS'] ); $filename=$_FILES['filetoupload']['name']; $filesize=$_FILES['filetoupload']['size']; $data=file_get_contents($_FILES['filetoupload']['tmp_name']); $private = (empty($_POST['private']) ? 0 : 1); // Should the links be imported as private? $overwrite = !empty($_POST['overwrite']) ; // Should the imported links overwrite existing ones? $import_count=0; // Sniff file type: $type='unknown'; if (startsWith($data,'')) $type='netscape'; // Netscape bookmark file (aka Firefox). // Then import the bookmarks. if ($type=='netscape') { // This is a standard Netscape-style bookmark file. // This format is supported by all browsers (except IE, of course), also Delicious, Diigo and others. foreach(explode('
',$data) as $html) // explode is very fast { $link = array('linkdate'=>'','title'=>'','url'=>'','description'=>'','tags'=>'','private'=>0); $d = explode('
',$html); if (startswith($d[0],'(.*?)!i',$d[0],$matches); $link['title'] = (isset($matches[1]) ? trim($matches[1]) : ''); // Get title $link['title'] = html_entity_decode($link['title'],ENT_QUOTES,'UTF-8'); preg_match_all('! ([A-Z_]+)=\"(.*?)"!i',$html,$matches,PREG_SET_ORDER); // Get all other attributes $raw_add_date=0; foreach($matches as $m) { $attr=$m[1]; $value=$m[2]; if ($attr=='HREF') $link['url']=html_entity_decode($value,ENT_QUOTES,'UTF-8'); elseif ($attr=='ADD_DATE') { $raw_add_date=intval($value); if ($raw_add_date>30000000000) $raw_add_date/=1000; //If larger than year 2920, then was likely stored in milliseconds instead of seconds } elseif ($attr=='PRIVATE') $link['private']=($value=='0'?0:1); elseif ($attr=='TAGS') $link['tags']=html_entity_decode(str_replace(',',' ',$value),ENT_QUOTES,'UTF-8'); } if ($link['url']!='') { if ($private==1) $link['private']=1; $dblink = $LINKSDB->getLinkFromUrl($link['url']); // See if the link is already in database. if ($dblink==false) { // Link not in database, let's import it... if (empty($raw_add_date)) $raw_add_date=time(); // In case of shitty bookmark file with no ADD_DATE // Make sure date/time is not already used by another link. // (Some bookmark files have several different links with the same ADD_DATE) // We increment date by 1 second until we find a date which is not used in DB. // (so that links that have the same date/time are more or less kept grouped by date, but do not conflict.) while (!empty($LINKSDB[date('Ymd_His',$raw_add_date)])) { $raw_add_date++; }// Yes, I know it's ugly. $link['linkdate']=date('Ymd_His',$raw_add_date); $LINKSDB[$link['linkdate']] = $link; $import_count++; } else // Link already present in database. { if ($overwrite) { // If overwrite is required, we import link data, except date/time. $link['linkdate']=$dblink['linkdate']; $LINKSDB[$link['linkdate']] = $link; $import_count++; } } } } } $LINKSDB->savedb($GLOBALS['config']['PAGECACHE']); echo ''; } else { echo ''; } } // ----------------------------------------------------------------------------------------------- // Template for the list of links (
'; die; } if (!isset($_SESSION['session_tested'])) { // Step 1 : Try to store data in session and reload page. $_SESSION['session_tested'] = 'Working'; // Try to set a variable in session. header('Location: '.indexUrl().'?test_session'); // Redirect to check stored data. } if (isset($_GET['test_session'])) { // Step 3: Sessions are OK. Remove test parameter from URL. header('Location: '.indexUrl()); } if (!empty($_POST['setlogin']) && !empty($_POST['setpassword'])) { $tz = 'UTC'; if (!empty($_POST['continent']) && !empty($_POST['city'])) { if (isTimeZoneValid($_POST['continent'], $_POST['city'])) { $tz = $_POST['continent'].'/'.$_POST['city']; } } $GLOBALS['timezone'] = $tz; // Everything is ok, let's create config file. $GLOBALS['login'] = $_POST['setlogin']; $GLOBALS['salt'] = sha1(uniqid('',true).'_'.mt_rand()); // Salt renders rainbow-tables attacks useless. $GLOBALS['hash'] = sha1($_POST['setpassword'].$GLOBALS['login'].$GLOBALS['salt']); $GLOBALS['title'] = (empty($_POST['title']) ? 'Shared links on '.escape(indexUrl()) : $_POST['title'] ); $GLOBALS['config']['ENABLE_UPDATECHECK'] = !empty($_POST['updateCheck']); try { writeConfig($GLOBALS, isLoggedIn()); } catch(Exception $e) { error_log( 'ERROR while writing config file after installation.' . PHP_EOL . $e->getMessage() ); // TODO: do not handle exceptions/errors in JS. echo ''; exit; } echo ''; exit; } // Display config form: list($timezone_form, $timezone_js) = generateTimeZoneForm(); $timezone_html = ''; if ($timezone_form != '') { $timezone_html = 'Timezone:'.$timezone_form.''; } $PAGE = new pageBuilder; $PAGE->assign('timezone_html',$timezone_html); $PAGE->assign('timezone_js',$timezone_js); $PAGE->renderPage('install'); exit; } if (!function_exists('json_encode')) { function json_encode($data) { switch ($type = gettype($data)) { case 'NULL': return 'null'; case 'boolean': return ($data ? 'true' : 'false'); case 'integer': case 'double': case 'float': return $data; case 'string': return '"' . addslashes($data) . '"'; case 'object': $data = get_object_vars($data); case 'array': $output_index_count = 0; $output_indexed = array(); $output_associative = array(); foreach ($data as $key => $value) { $output_indexed[] = json_encode($value); $output_associative[] = json_encode($key) . ':' . json_encode($value); if ($output_index_count !== NULL && $output_index_count++ !== $key) { $output_index_count = NULL; } } if ($output_index_count !== NULL) { return '[' . implode(',', $output_indexed) . ']'; } else { return '{' . implode(',', $output_associative) . '}'; } default: return ''; // Not supported } } } /* 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. */ function genThumbnail() { // Make sure the parameters in the URL were generated by us. $sign = hash_hmac('sha256', $_GET['url'], $GLOBALS['salt']); if ($sign!=$_GET['hmac']) die('Naughty boy!'); // 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($GLOBALS['config']['CACHEDIR'].'/'.$thumbname)) { // We have the thumbnail, just serve it: header('Content-Type: image/jpeg'); echo file_get_contents($GLOBALS['config']['CACHEDIR'].'/'.$thumbname); return; } // We may also serve a blank image (if service did not respond) $blankname=hash('sha1',$_GET['url']).'.gif'; if (is_file($GLOBALS['config']['CACHEDIR'].'/'.$blankname)) { header('Content-Type: image/gif'); echo file_get_contents($GLOBALS['config']['CACHEDIR'].'/'.$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, $data) = get_http_url($url, 20); if (strpos($headers[0], '200 OK') !== false) { // flickr now nicely provides the URL of the thumbnail in each flickr page. preg_match('! if ($imageurl=='') { preg_match('! tag on that page // http://www.ted.com/talks/mikko_hypponen_fighting_viruses_defending_the_net.html // list($headers, $data) = get_http_url($url, 5); if (strpos($headers[0], '200 OK') !== false) { // Extract the link to the thumbnail preg_match('!link rel="image_src" href="(http://images.ted.com/images/ted/.+_\d+x\d+\.jpg)"!',$data,$matches); if (!empty($matches[1])) { // Let's download the image. $imageurl=$matches[1]; // No control on image size, so wait long enough list($headers, $data) = get_http_url($imageurl, 20); if (strpos($headers[0], '200 OK') !== false) { $filepath=$GLOBALS['config']['CACHEDIR'].'/'.$thumbname; file_put_contents($filepath,$data); // Save image to cache. if (resizeImage($filepath)) { header('Content-Type: image/jpeg'); echo file_get_contents($filepath); return; } } } } } elseif ($domain=='xkcd.com' || endsWith($domain,'.xkcd.com')) { // There is no thumbnail available for xkcd comics, so download the whole image and resize it. // http://xkcd.com/327/ // <BLABLA> list($headers, $data) = get_http_url($url, 5); if (strpos($headers[0], '200 OK') !== false) { // Extract the link to the thumbnail preg_match('!