From edfa09c1f5cc8eee2ab96303c4044a0afda5e207 Mon Sep 17 00:00:00 2001 From: Knah Tsaeb Date: Thu, 28 Feb 2013 17:03:56 +0100 Subject: [PATCH] Who have add index.php in tpl dir ....... Oups it's me sorry --- tpl/index.php | 2331 ------------------------------------------------- 1 file changed, 2331 deletions(-) delete mode 100644 tpl/index.php diff --git a/tpl/index.php b/tpl/index.php deleted file mode 100644 index 5f14434..0000000 --- a/tpl/index.php +++ /dev/null @@ -1,2331 +0,0 @@ -'); // Suffix to encapsulate data in php code. - -// Force cookie path (but do not change lifetime) -$cookie=session_get_cookie_params(); -session_set_cookie_params($cookie['lifetime'],dirname($_SERVER["SCRIPT_NAME"]).'/'); // Default cookie expiration and path. - -// PHP Settings -ini_set('max_input_time','60'); // High execution time in case of problematic imports/exports. -ini_set('memory_limit', '128M'); // Try to set max upload file size and read (May not work on some hosts). -ini_set('post_max_size', '16M'); -ini_set('upload_max_filesize', '16M'); -checkphpversion(); -error_reporting(E_ALL^E_WARNING); // See all error except warnings. -//error_reporting(-1); // See all errors (for debugging only) - -include "inc/rain.tpl.class.php"; //include Rain TPL -raintpl::$tpl_dir = "tpl/"; // template directory -if (!is_dir('tmp')) { mkdir('tmp',0705); chmod('tmp',0705); } -raintpl::$cache_dir = "tmp/"; // cache directory - -ob_start(); // Output buffering for the page cache. - - -// In case stupid admin has left magic_quotes enabled in php.ini: -if (get_magic_quotes_gpc()) -{ - function stripslashes_deep($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', $_COOKIE); -} - -// Prevent caching on client side or proxy: (yes, it's ugly) -header("Last-Modified: " . gmdate("D, d M Y H:i:s") . " GMT"); -header("Cache-Control: no-store, no-cache, must-revalidate"); -header("Cache-Control: post-check=0, pre-check=0", false); -header("Pragma: no-cache"); - -// Directories creations (Note that your web host may require differents rights than 705.) -if (!is_dir($GLOBALS['config']['DATADIR'])) { mkdir($GLOBALS['config']['DATADIR'],0705); chmod($GLOBALS['config']['DATADIR'],0705); } -if (!is_dir('tmp')) { mkdir('tmp',0705); chmod('tmp',0705); } // For RainTPL temporary files. -if (!is_file($GLOBALS['config']['DATADIR'].'/.htaccess')) { file_put_contents($GLOBALS['config']['DATADIR'].'/.htaccess',"Allow from none\nDeny from all\n"); } // Protect data files. -if ($GLOBALS['config']['ENABLE_LOCALCACHE']) -{ - if (!is_dir($GLOBALS['config']['CACHEDIR'])) { mkdir($GLOBALS['config']['CACHEDIR'],0705); chmod($GLOBALS['config']['CACHEDIR'],0705); } - if (!is_file($GLOBALS['config']['CACHEDIR'].'/.htaccess')) { file_put_contents($GLOBALS['config']['CACHEDIR'].'/.htaccess',"Allow from none\nDeny from all\n"); } // Protect data files. -} - -// Run config screen if first run: -if (!is_file($GLOBALS['config']['CONFIG_FILE'])) install(); - -require $GLOBALS['config']['CONFIG_FILE']; // Read login/password hash into $GLOBALS. - -// Handling of old config file which do not have the new parameters. -if (empty($GLOBALS['title'])) $GLOBALS['title']='Shared links on '.htmlspecialchars(indexUrl()); -if (empty($GLOBALS['timezone'])) $GLOBALS['timezone']=date_default_timezone_get(); -if (empty($GLOBALS['disablesessionprotection'])) $GLOBALS['disablesessionprotection']=false; - - -autoLocale(); // Sniff browser language and set date format accordingly. -header('Content-Type: text/html; charset=utf-8'); // We use UTF-8 for proper international characters handling. - -// Check php version -function checkphpversion() -{ - if (version_compare(PHP_VERSION, '5.1.0') < 0) - { - header('Content-Type: text/plain; charset=utf-8'); - echo 'Your server supports php '.PHP_VERSION.'. Shaarli requires at last php 5.1.0, and thus cannot run. Sorry.'; - exit; - } -} - -// Checks if an update is available for Shaarli. -// (at most once a day, and only for registered user.) -// Output: '' = no new version. -// other= the available version. -function checkUpdate() -{ - if (!isLoggedIn()) return ''; // Do not check versions for visitors. - - // Get latest version number at most once a day. - if (!is_file($GLOBALS['config']['UPDATECHECK_FILENAME']) || (filemtime($GLOBALS['config']['UPDATECHECK_FILENAME'])url = $url; - $this->filename = $GLOBALS['config']['PAGECACHE'].'/'.sha1($url).'.cache'; - $this->shouldBeCached = $shouldBeCached; - } - - // If the page should be cached and a cached version exists, - // returns the cached version (otherwise, return null). - public function cachedVersion() - { - if (!$this->shouldBeCached) return null; - if (is_file($this->filename)) { return file_get_contents($this->filename); exit; } - return null; - } - - // Put a page in the cache. - public function cache($page) - { - if (!$this->shouldBeCached) return; - if (!is_dir($GLOBALS['config']['PAGECACHE'])) { mkdir($GLOBALS['config']['PAGECACHE'],0705); chmod($GLOBALS['config']['PAGECACHE'],0705); } - file_put_contents($this->filename,$page); - } - - // Purge the whole cache. - // (call with pageCache::purgeCache()) - public static function purgeCache() - { - if (is_dir($GLOBALS['config']['PAGECACHE'])) - { - $handler = opendir($GLOBALS['config']['PAGECACHE']); - if ($handle!==false) - { - while (($filename = readdir($handler))!==false) - { - if (endsWith($filename,'.cache')) { unlink($GLOBALS['config']['PAGECACHE'].'/'.$filename); } - } - closedir($handler); - } - } - } - -} - - -// ----------------------------------------------------------------------------------------------- -// Log to text file -function logm($message) -{ - $t = strval(date('Y/m/d_H:i:s')).' - '.$_SERVER["REMOTE_ADDR"].' - '.strval($message)."\n"; - file_put_contents($GLOBALS['config']['DATADIR'].'/log.txt',$t,FILE_APPEND); -} - -// Same as nl2br(), but escapes < and > -function nl2br_escaped($html) -{ - return str_replace('>','>',str_replace('<','<',nl2br($html))); -} - -/* Returns the small hash of a string - eg. smallHash('20111006_131924') --> yZH23w - Small hashes: - - are unique (well, as unique as crc32, at last) - - are always 6 characters long. - - only use the following characters: a-z A-Z 0-9 - _ @ - - are NOT cryptographically secure (they CAN be forged) - In Shaarli, they are used as a tinyurl-like link to individual entries. -*/ -function smallHash($text) -{ - $t = rtrim(base64_encode(hash('crc32',$text,true)),'='); - $t = str_replace('+','-',$t); // Get rid of characters which need encoding in URLs. - $t = str_replace('/','_',$t); - $t = str_replace('=','@',$t); - return $t; -} - -// In a string, converts urls to clickable links. -// Function inspired from http://www.php.net/manual/en/function.preg-replace.php#85722 -function text2clickable($url) -{ - $redir = empty($GLOBALS['redirector']) ? '' : $GLOBALS['redirector']; - return preg_replace('!(((?:https?|ftp|file)://|apt:)\S+[[:alnum:]]/?)!si','$1',$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()
-{
-    $loc='en_US'; // Default if browser does not send HTTP_ACCEPT_LANGUAGE
-    if (isset($_SERVER['HTTP_ACCEPT_LANGUAGE'])) // eg. "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. Prefered language is always presented first.)
-        if (preg_match('/([a-z]{2}(-[a-z]{2})?)/i',$_SERVER['HTTP_ACCEPT_LANGUAGE'],$matches)) $loc=$matches[1];
-    }
-    setlocale(LC_TIME,$loc);  // LC_TIME = Set local for date/time format only.
-}
-
-// ------------------------------------------------------------------------------------------
-// PubSubHubbub protocol support (if enabled)  [UNTESTED]
-// (Source: http://aldarone.fr/les-flux-rss-shaarli-et-pubsubhubbub/ )
-if (!empty($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
-define('INACTIVITY_TIMEOUT',3600); // (in seconds). If the user does not access any page within this time, his/her session is considered expired.
-ini_set('session.use_cookies', 1);       // Use cookies to store session.
-ini_set('session.use_only_cookies', 1);  // Force cookies for session (phpsessionID forbidden in URL)
-ini_set('session.use_trans_sid', false); // Prevent php to use sessionID in URL if cookies are disabled.
-session_name('shaarli');
-session_start();
-
-// 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 $ip;
-}
-
-// Check that user/password is correct.
-function check_auth($login,$password)
-{
-    $hash = sha1($password.$login.$GLOBALS['salt']);
-    if ($login==$GLOBALS['login'] && $hash==$GLOBALS['hash'])
-    {   // Login/password is correct.
-        $_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.
-        $_SESSION['username']=$login;
-        $_SESSION['expires_on']=time()+INACTIVITY_TIMEOUT;  // Set session expiration.
-        logm('Login successful');
-        return True;
-    }
-    logm('Login failed for user '.$login);
-    return False;
-}
-
-// Returns true if the user is logged in.
-function isLoggedIn()
-{
-    if ($GLOBALS['config']['OPEN_SHAARLI']) return true;
-
-    // If session does not exist on server side, or IP address has changed, or session has expired, logout.
-    if (empty($_SESSION['uid']) || ($GLOBALS['disablesessionprotection']==false && $_SESSION['ip']!=allIPs()) || time()>=$_SESSION['expires_on'])
-    {
-        logout();
-        return false;
-    }
-    if (!empty($_SESSION['longlastingsession']))  $_SESSION['expires_on']=time()+$_SESSION['longlastingsession']; // In case of "Stay signed in" checked.
-    else $_SESSION['expires_on']=time()+INACTIVITY_TIMEOUT; // Standard session expiration date.
-
-    return true;
-}
-
-// Force logout.
-function logout() { if (isset($_SESSION)) { unset($_SESSION['uid']); unset($_SESSION['ip']); unset($_SESSION['username']);}  }
-
-
-// ------------------------------------------------------------------------------------------
-// Brute force protection system
-// Several consecutive failed logins will ban the IP address for 30 minutes.
-if (!is_file($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']))
-        {
-            $_SESSION['longlastingsession']=31536000;  // (31536000 seconds = 1 year)
-            $_SESSION['expires_on']=time()+$_SESSION['longlastingsession'];  // Set session expiration on server-side.
-            session_set_cookie_params($_SESSION['longlastingsession'],dirname($_SERVER["SCRIPT_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)
-        {
-            session_set_cookie_params(0,dirname($_SERVER["SCRIPT_NAME"]).'/'); // 0 means "When browser closes"
-            session_regenerate_id(true);
-        }
-        // Optional redirect after login:
-        if (isset($_GET['post'])) { header('Location: ?post='.urlencode($_GET['post']).(!empty($_GET['title'])?'&title='.urlencode($_GET['title']):'').(!empty($_GET['source'])?'&source='.urlencode($_GET['source']):'')); exit; }
-        if (isset($_POST['returnurl']))
-        {
-            if (endsWith($_POST['returnurl'],'?do=login')) { header('Location: ?'); exit; } // Prevent loops over login screen.
-            header('Location: '.$_POST['returnurl']); exit;
-        }
-        header('Location: ?'); exit;
-    }
-    else
-    {
-        ban_loginFailed();
-        echo ''; // Redirect to login screen.
-        exit;
-    }
-}
-
-// ------------------------------------------------------------------------------------------
-// Misc utility functions:
-
-
-// Try to get just domain for @via 
-function getJustDomain($url){
-    $parts = parse_url($url);
-    return trim($parts['host']);
-    }
-
-// Returns the server URL (including port and http/https), without path.
-// eg. "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"].$serverport;
-}
-
-// Returns the absolute URL of current script, without the query.
-// (eg. http://sebsauvage.net/links/)
-function indexUrl()
-{
-    return serverUrl() . ($_SERVER["SCRIPT_NAME"] == '/index.php' ? '/' : $_SERVER["SCRIPT_NAME"]);
-}
-
-// Returns the absolute URL of current script, WITH the query.
-// (eg. http://sebsauvage.net/links/?toto=titi&spamspamspam=humbug)
-function pageUrl()
-{
-    return indexUrl().(!empty($_SERVER["QUERY_STRING"]) ? '?'.$_SERVER["QUERY_STRING"] : '');
-}
-
-// Convert post_max_size/upload_max_filesize (eg.'16M') parameters to bytes.
-function return_bytes($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 ? (eg. 2M instead of 2000000)
-    return $maxsize;
-}
-
-// Tells if a string start with a substring or not.
-function startsWith($haystack,$needle,$case=true)
-{
-    if($case){return (strcmp(substr($haystack, 0, strlen($needle)),$needle)===0);}
-    return (strcasecmp(substr($haystack, 0, strlen($needle)),$needle)===0);
-}
-
-// Tells if a string ends with a substring or not.
-function endsWith($haystack,$needle,$case=true)
-{
-    if($case){return (strcmp(substr($haystack, strlen($haystack) - strlen($needle)),$needle)===0);}
-    return (strcasecmp(substr($haystack, strlen($haystack) - strlen($needle)),$needle)===0);
-}
-
-/*  Converts a linkdate time (YYYYMMDD_HHMMSS) of an article to a timestamp (Unix epoch)
-    (used to build the ADD_DATE attribute in Netscape-bookmarks file)
-    PS: I could have used strptime(), but it does not exist on Windows. I'm too kind. */
-function linkdate2timestamp($linkdate)
-{
-    $Y=$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);
-}
-
-/*  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.
-}
-
-/*  Converts a linkdate time (YYYYMMDD_HHMMSS) of an article to a localized date format.
-    (used to display link date on screen)
-    The date format is automatically chosen according to locale/languages sniffed from browser headers (see autoLocale()). */
-function linkdate2locale($linkdate)
-{
-    return utf8_encode(strftime('%c',linkdate2timestamp($linkdate))); // %c is for automatic date format according to locale.
-    // Note that if you use a local which is not installed on your webserver,
-    // the date will not be displayed in the chosen locale, but probably in US notation.
-}
-
-// Parse HTTP response headers and return an associative array.
-function http_parse_headers_shaarli( $headers )
-{
-    $res=array();
-    foreach($headers as $header)
-    {
-        $i = strpos($header,': ');
-        if ($i!==false)
-        {
-            $key=substr($header,0,$i);
-            $value=substr($header,$i+2,strlen($header)-$i-2);
-            $res[$key]=$value;
-        }
-    }
-    return $res;
-}
-
-/* GET an URL.
-   Input: $url : url to get (http://...)
-          $timeout : Network timeout (will wait this many seconds for an anwser before giving up).
-   Output: An array.  [0] = HTTP status message (eg. "HTTP/1.1 200 OK") or error message
-                      [1] = associative array containing HTTP response headers (eg. echo getHTTP($url)[1]['Content-Type'])
-                      [2] = data
-    Example: list($httpstatus,$headers,$data) = getHTTP('http://sebauvage.net/');
-             if (strpos($httpstatus,'200 OK')!==false)
-                 echo 'Data type: '.htmlspecialchars($headers['Content-Type']);
-             else
-                 echo 'There was an error: '.htmlspecialchars($httpstatus)
-*/
-function getHTTP($url,$timeout=30)
-{
-    try
-    {
-        $options = array('http'=>array('method'=>'GET','timeout' => $timeout)); // Force network timeout
-        $context = stream_context_create($options);
-        $data=file_get_contents($url,false,$context,-1, 4000000); // We download at most 4 Mb from source.
-        if (!$data) { return array('HTTP Error',array(),''); }
-        $httpStatus=$http_response_header[0]; // eg. "HTTP/1.1 200 OK"
-        $responseHeaders=http_parse_headers_shaarli($http_response_header);
-        return array($httpStatus,$responseHeaders,$data);
-    }
-    catch (Exception $e)  // getHTTP *can* fail silentely (we don't care if the title cannot be fetched)
-    {
-        return array($e->getMessage(),'','');
-    }
-}
-
-// 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());  // 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',checkUpdate());
-        $this->tpl->assign('feedurl',htmlspecialchars(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['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,$where);
-    }
-    
-    // Render a specific page (using a template).
-    // eg. pb.renderPage('picwall')
-    public function renderPage($page)
-    {
-        if ($this->tpl===false) $this->initialize(); // Lazy initialization
-        $this->tpl->draw($page);
-    }
-}
-
-// ------------------------------------------------------------------------------------------
-/* Data storage for links.
-   This object behaves like an associative array.
-   Example:
-      $mylinks = new linkdb();
-      echo $mylinks['20110826_161819']['title'];
-      foreach($mylinks as $link)
-         echo $link['title'].' at url '.$link['url'].' ; description:'.$link['description'];
-   
-   Available keys:
-       title : Title of the link
-       url : URL of the link. Can be absolute or relative. Relative URLs are permalinks (eg.'?m-ukcw')
-       description : description of the entry
-       private : Is this link private ? 0=no, other value=yes
-       linkdate : date of the creation of this entry, in the form YYYYMMDD_HHMMSS (eg.'20110914_192317')
-       tags : tags attached to this entry (separated by spaces)                   
-
-   We implement 3 interfaces:
-     - ArrayAccess so that this object behaves like an associative array.
-     - Iterator so that this object can be used in foreach() loops.
-     - Countable interface so that we can do a count() on this object.
-*/
-class linkdb implements Iterator, Countable, ArrayAccess
-{
-    private $links; // List of links (associative array. Key=linkdate (eg. "20110823_124546"), value= associative array (keys:title,description...)
-    private $urls;  // List of all recorded URLs (key=url, value=linkdate) for fast reserve search (url-->linkdate)
-    private $keys;  // List of linkdate keys (for the Iterator interface implementation)
-    private $position; // Position in the $this->keys array. (for the Iterator interface implementation.)
-    private $loggedin; // Is the used logged in ? (used to filter private links)
-
-    // Constructor:
-    function __construct($isLoggedIn)
-    // Input : $isLoggedIn : is the used logged in ?
-    {
-        $this->loggedin = $isLoggedIn;
-        $this->checkdb(); // Make sure data file exists.
-        $this->readdb();  // Then read it.
-    }
-
-    // ---- Countable interface implementation
-    public function count() { return count($this->links); }
-
-    // ---- ArrayAccess interface implementation
-    public function offsetSet($offset, $value)
-    {
-        if (!$this->loggedin) die('You are not authorized to add a link.');
-        if (empty($value['linkdate']) || empty($value['url'])) die('Internal Error: A link should always have a linkdate and url.');
-        if (empty($offset)) die('You must specify a key.');
-        $this->links[$offset] = $value;
-        $this->urls[$value['url']]=$offset;
-    }
-    public function offsetExists($offset) { return array_key_exists($offset,$this->links); }
-    public function offsetUnset($offset)
-    {
-        if (!$this->loggedin) die('You are not authorized to delete a link.');
-        $url = $this->links[$offset]['url']; unset($this->urls[$url]);
-        unset($this->links[$offset]);
-    }
-    public function offsetGet($offset) { return isset($this->links[$offset]) ? $this->links[$offset] : null; }
-
-    // ---- Iterator interface implementation
-    function rewind() { $this->keys=array_keys($this->links); rsort($this->keys); $this->position=0; } // Start over for iteration, ordered by date (latest first).
-    function key() { return $this->keys[$this->position]; } // current key
-    function current() { return $this->links[$this->keys[$this->position]]; } // current value
-    function next() { ++$this->position; } // go to next item
-    function valid() { return isset($this->keys[$this->position]); }    // Check if current position is valid.
-
-    // ---- Misc methods
-    private function checkdb() // Check if db directory and file exists.
-    {
-        if (!file_exists($GLOBALS['config']['DATASTORE'])) // Create a dummy database for example.
-        {
-             $this->links = array();
-             $link = array('title'=>'Shaarli - sebsauvage.net','url'=>'http://sebsauvage.net/wiki/doku.php?id=php:shaarli','description'=>'Welcome to Shaarli ! This is a bookmark. To edit or delete me, you must first login.','private'=>0,'linkdate'=>'20110914_190000','tags'=>'opensource software');
-             $this->links[$link['linkdate']] = $link;
-             $link = array('title'=>'My secret stuff... - Pastebin.com','url'=>'http://pastebin.com/smCEEeSn','description'=>'SShhhh!!  I\'m a private link only YOU can see. You can delete me too.','private'=>1,'linkdate'=>'20110914_074522','tags'=>'secretstuff');
-             $this->links[$link['linkdate']] = $link;
-             file_put_contents($GLOBALS['config']['DATASTORE'], PHPPREFIX.base64_encode(gzdeflate(serialize($this->links))).PHPSUFFIX); // Write database to disk
-        }
-    }
-
-    // Read database from disk to memory
-    private function readdb()
-    {
-        // Read data
-        $this->links=(file_exists($GLOBALS['config']['DATASTORE']) ? unserialize(gzinflate(base64_decode(substr(file_get_contents($GLOBALS['config']['DATASTORE']),strlen(PHPPREFIX),-strlen(PHPSUFFIX))))) : array() );
-        // Note that gzinflate is faster than gzuncompress. See: http://www.php.net/manual/en/function.gzdeflate.php#96439
-
-        // If user is not logged in, filter private links.
-        if (!$this->loggedin)
-        {
-            $toremove=array();
-            foreach($this->links as $link) { if ($link['private']!=0) $toremove[]=$link['linkdate']; }
-            foreach($toremove as $linkdate) { unset($this->links[$linkdate]); }
-        }
-
-        // Keep the list of the mapping URLs-->linkdate up-to-date.
-        $this->urls=array();
-        foreach($this->links as $link) { $this->urls[$link['url']]=$link['linkdate']; }
-    }
-
-    // Save database from memory to disk.
-    public function savedb()
-    {
-        if (!$this->loggedin) die('You are not authorized to change the database.');
-        file_put_contents($GLOBALS['config']['DATASTORE'], PHPPREFIX.base64_encode(gzdeflate(serialize($this->links))).PHPSUFFIX);
-        invalidateCaches();
-    }
-
-    // Returns the link for a given URL (if it exists). false it does not exist.
-    public function getLinkFromUrl($url)
-    {
-        if (isset($this->urls[$url])) return $this->links[$this->urls[$url]];
-        return false;
-    }
-
-    // Case insentitive search among links (in url, title and description). Returns filtered list of links.
-    // eg. print_r($mydb->filterFulltext('hollandais'));
-    public function filterFulltext($searchterms)
-    {
-        // FIXME: explode(' ',$searchterms) and perform a AND search.
-        // FIXME: accept double-quotes to search for a string "as is" ?
-        $filtered=array();
-        $s = strtolower($searchterms);
-        foreach($this->links as $l)
-        {
-            $found=   (strpos(strtolower($l['title']),$s)!==false)
-                   || (strpos(strtolower($l['description']),$s)!==false)
-                   || (strpos(strtolower($l['snippet']),$s)!==false)
-                   || (strpos(strtolower($l['url']),$s)!==false)
-                   || (strpos(strtolower($l['tags']),$s)!==false)
-                   || (strpos(strtolower($l['via']),$s)!==false);
-            if ($found) $filtered[$l['linkdate']] = $l;
-        }
-        krsort($filtered);
-        return $filtered;
-    }
-
-    // Filter by tag.
-    // You can specify one or more tags (tags can be separated by space or comma).
-    // eg. print_r($mydb->filterTags('linux programming'));
-    public function filterTags($tags,$casesensitive=false)
-    {
-        $t = str_replace(',',' ',($casesensitive?$tags:strtolower($tags)));
-        $searchtags=explode(' ',$t);
-        $filtered=array();
-        foreach($this->links as $l)
-        {
-            $linktags = explode(' ',($casesensitive?$l['tags']:strtolower($l['tags'])));
-            if (count(array_intersect($linktags,$searchtags)) == count($searchtags))
-                $filtered[$l['linkdate']] = $l;
-        }
-        krsort($filtered);
-        return $filtered;
-    }
-
-    // Filter by day. Day must be in the form 'YYYYMMDD' (eg. '20120125')
-    // Sort order is: older articles first.
-    // eg. print_r($mydb->filterDay('20120125'));
-    public function filterDay($day)
-    {
-        $filtered=array();
-        foreach($this->links as $l)
-        {
-            if (startsWith($l['linkdate'],$day)) $filtered[$l['linkdate']] = $l;
-        }
-        ksort($filtered);
-        return $filtered;
-    }
-    // Filter by smallHash.
-    // Only 1 article is returned.
-    public function filterSmallHash($smallHash)
-    {
-        $filtered=array();
-        foreach($this->links as $l)
-        {
-            if ($smallHash==smallHash($l['linkdate'])) // Yes, this is ugly and slow
-            {
-                $filtered[$l['linkdate']] = $l;
-                return $filtered;
-            }
-        }
-        return $filtered;
-    }
-
-    // Returns the list of all tags
-    // Output: associative array key=tags, value=0
-    public function allTags()
-    {
-        $tags=array();
-        foreach($this->links as $link)
-            foreach(explode(' ',$link['tags']) as $tag)
-                if (!empty($tag)) $tags[$tag]=(empty($tags[$tag]) ? 1 : $tags[$tag]+1);
-        arsort($tags); // Sort tags by usage (most used tag first)
-        return $tags;
-    }
-    
-    // Returns the list of days containing articles (oldest first)
-    // Output: An array containing days (in format YYYYMMDD).
-    public function days()
-    {
-        $linkdays=array();
-        foreach(array_keys($this->links) as $day)
-        {
-            $linkdays[substr($day,0,8)]=0;
-        }
-        $linkdays=array_keys($linkdays);
-        sort($linkdays);
-        return $linkdays;
-    }
-}
-
-// ------------------------------------------------------------------------------------------
-// Ouput the last 50 links in RSS 2.0 format.
-function showRSS()
-{
-    header('Content-Type: application/rss+xml; charset=utf-8');
-
-    // Cache system
-    $query = $_SERVER["QUERY_STRING"];
-    $cache = new pageCache(pageUrl(),startsWith($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(isLoggedIn() || $GLOBALS['config']['OPEN_SHAARLI']);  // Read links from database (and filter private links if used it not logged in).
-
-    // Optionnaly filter the results:
-    $linksToDisplay=array();
-    if (!empty($_GET['searchterm'])) $linksToDisplay = $LINKSDB->filterFulltext($_GET['searchterm']);
-    elseif (!empty($_GET['searchtags']))   $linksToDisplay = $LINKSDB->filterTags(trim($_GET['searchtags']));
-    else $linksToDisplay = $LINKSDB;
-
-    $pageaddr=htmlspecialchars(indexUrl());
-    echo '';
-    echo ''.htmlspecialchars($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<50 && $i'.htmlspecialchars($link['title']).''.$guid.''.$absurl.'';
-        if (!$GLOBALS['config']['HIDE_TIMESTAMPS'] || isLoggedIn()) echo ''.htmlspecialchars($rfc822date)."\n";
-        if ($link['tags']!='') // Adding tags to each RSS entry (as mentioned in RSS specification)
-        {
-            foreach(explode(' ',$link['tags']) as $tag) { echo ''.htmlspecialchars($tag).''."\n"; }
-        }
-        echo ''."\n\n";
-        $i++;
-    }
-    echo '';
-
-    $cache->cache(ob_get_contents());
-    ob_end_flush();
-    exit;
-}
-
-// ------------------------------------------------------------------------------------------
-// Ouput the last 50 links in ATOM format.
-function showATOM()
-{
-    header('Content-Type: application/atom+xml; charset=utf-8');
-
-    // Cache system
-    $query = $_SERVER["QUERY_STRING"];
-    $cache = new pageCache(pageUrl(),startsWith($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:
-
-    $LINKSDB=new linkdb(isLoggedIn() || $GLOBALS['config']['OPEN_SHAARLI']);  // Read links from database (and filter private links if used it not logged in).
-
-
-    // Optionnaly filter the results:
-    $linksToDisplay=array();
-    if (!empty($_GET['searchterm'])) $linksToDisplay = $LINKSDB->filterFulltext($_GET['searchterm']);
-    elseif (!empty($_GET['searchtags']))   $linksToDisplay = $LINKSDB->filterTags(trim($_GET['searchtags']));
-    else $linksToDisplay = $LINKSDB;
-
-    $pageaddr=htmlspecialchars(indexUrl());
-    $latestDate = '';
-    $entries='';
-    $i=0;
-    $keys=array(); foreach($linksToDisplay as $key=>$value) { $keys[]=$key; }  // No, I can't use array_keys().
-    while ($i<50 && $i'.$guid.'';
-        if (!$GLOBALS['config']['HIDE_TIMESTAMPS'] || isLoggedIn()) $entries.=''.htmlspecialchars($iso8601date).'';
-        $entries.=''.htmlspecialchars(nl2br(keepMultipleSpaces(text2clickable(htmlspecialchars($link['description'])))))."\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='';
-    $feed.=''.htmlspecialchars($GLOBALS['title']).'';
-    if (!$GLOBALS['config']['HIDE_TIMESTAMPS'] || isLoggedIn()) $feed.=''.htmlspecialchars($latestDate).'';
-    $feed.='';
-    if (!empty($GLOBALS['config']['PUBSUBHUB_URL']))
-    {
-        $feed.='';
-        $feed.='';
-        $feed.='';
-    }
-    $feed.=''.htmlspecialchars($pageaddr).''.htmlspecialchars($pageaddr).'';
-    $feed.=''.htmlspecialchars($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"];
-    $cache = new pageCache(pageUrl(),startsWith($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:
-    $LINKSDB=new linkdb(isLoggedIn() || $GLOBALS['config']['OPEN_SHAARLI']);  // Read links from database (and filter private links if used it not logged in).
-    
-    /* Some Shaarlies may have very few links, so we need to look
-       back in time (rsort()) until we have enough days ($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');
-    $pageaddr=htmlspecialchars(indexUrl());
-    echo '';
-    echo 'Daily - '.htmlspecialchars($GLOBALS['title']).''.$pageaddr.'';
-    echo 'Daily shared linksen-en'.$pageaddr.''."\n";
-    
-    foreach($days as $day=>$linkdates) // For each day.
-    {
-        $daydate = utf8_encode(strftime('%A %d, %B %Y',linkdate2timestamp($day.'_000000'))); // Full text date
-        $rfc822date = linkdate2rfc822($day.'_000000');
-        $absurl=htmlspecialchars(indexUrl().'?do=daily&day='.$day);  // Absolute URL of the corresponding "Daily" page.
-        echo ''.htmlspecialchars($GLOBALS['title'].' - '.$daydate).''.$absurl.''.$absurl.'';
-        echo ''.htmlspecialchars($rfc822date)."";
-        
-        // 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];
-            $l['formatedDescription']=nl2br(keepMultipleSpaces(text2clickable(htmlspecialchars($l['description']))));
-            $l['thumbnail'] = thumbnail($l['url']);  
-            $l['localdate']=linkdate2locale($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;    
-        $tpl->assign('links',$links);
-        $html = $tpl->draw('dailyrss',$return_string=true);
-        echo "\n";
-        echo ''."\n\n\n";
-
-    }    
-    echo '';
-    
-    $cache->cache(ob_get_contents());
-    ob_end_flush();
-    exit;
-}
-
-// "Daily" page.
-function showDaily()
-{
-    $LINKSDB=new linkdb(isLoggedIn() || $GLOBALS['config']['OPEN_SHAARLI']);  // Read links from database (and filter private links if used it not logged in).
-
-
-    $day=Date('Ymd',strtotime('-1 day')); // Yesterday, in format YYYYMMDD.
-    if (isset($_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($day);
-    // We pre-format some fields for proper output.
-    foreach($linksToDisplay as $key=>$link)
-    {
-        $linksToDisplay[$key]['taglist']=explode(' ',$link['tags']);
-        $linksToDisplay[$key]['formatedDescription']=nl2br(keepMultipleSpaces(text2clickable(htmlspecialchars($link['description']))));
-        $linksToDisplay[$key]['thumbnail'] = thumbnail($link['url']);            
-    }
-    
-    /* 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));
-    $PAGE->assign('col1',$columns[0]);
-    $PAGE->assign('col1',$columns[0]);
-    $PAGE->assign('col2',$columns[1]);
-    $PAGE->assign('col3',$columns[2]);
-    $PAGE->assign('day',utf8_encode(strftime('%A %d, %B %Y',linkdate2timestamp($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(isLoggedIn() || $GLOBALS['config']['OPEN_SHAARLI']);  // Read links from database (and filter private links if used it not logged in).
-
-    // -------- Display login form.
-    if (isset($_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']) ? $_SERVER['HTTP_REFERER']:''));
-        $PAGE->renderPage('loginform');
-        exit;
-    }
-    // -------- User wants to logout.
-    if (isset($_SERVER["QUERY_STRING"]) && startswith($_SERVER["QUERY_STRING"],'do=logout'))
-    {
-        invalidateCaches();
-        logout();
-        header('Location: ?');
-        exit;
-    }
-
-    // -------- Picture wall
-    if (isset($_SERVER["QUERY_STRING"]) && startswith($_SERVER["QUERY_STRING"],'do=picwall'))
-    {
-        // Optionnaly 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)
-        {
-            $permalink='?'.htmlspecialchars(smallhash($link['linkdate']),ENT_QUOTES);
-            $thumb=lazyThumbnail($link['url'],$permalink);
-            if ($thumb!='') // Only output links which have a thumbnail.
-            {
-                $link['thumbnail']=$thumb; // Thumbnail HTML code.
-                $link['permalink']=$permalink;
-                $linksToDisplay[]=$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)
-        {
-            $tagList[$key] = array('count'=>$value,'size'=>max(40*$value/$maxcount,8));
-        }
-        $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);
-        $params['searchtags'] = (empty($params['searchtags']) ?  trim($_GET['addtag']) : trim($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), $params);
-        if (isset($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: '.(empty($_SERVER['HTTP_REFERER'])?'?':$_SERVER['HTTP_REFERER']));
-        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: '.(empty($_SERVER['HTTP_REFERER'])?'?':$_SERVER['HTTP_REFERER']));
-        exit;
-    }
-
-    // -------- Handle other actions allowed for non-logged in users:
-    if (!isLoggedIn())
-    {
-        // User tries to post new link but is not loggedin:
-        // 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($_GET['source'])?'&source='.urlencode($_GET['source']):'')); // Redirect to login page, then back to post 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']);
-            writeConfig();
-            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($_POST['city']))
-                if (isTZvalid($_POST['continent'],$_POST['city']))
-                    $tz = $_POST['continent'].'/'.$_POST['city'];
-            $GLOBALS['timezone'] = $tz;
-            $GLOBALS['title']=$_POST['title'];
-            $GLOBALS['redirector']=$_POST['redirector'];
-            $GLOBALS['disablesessionprotection']=!empty($_POST['disablesessionprotection']);
-            writeConfig();
-            echo '';
-            exit;
-        }
-        else // Show the configuration form.
-        {
-            $PAGE = new pageBuilder;
-            $PAGE->assign('linkcount',count($LINKSDB));
-            $PAGE->assign('token',getToken());
-            $PAGE->assign('title',htmlspecialchars( empty($GLOBALS['title']) ? '' : $GLOBALS['title'] , ENT_QUOTES));
-            $PAGE->assign('redirector',htmlspecialchars( empty($GLOBALS['redirector']) ? '' : $GLOBALS['redirector'] , ENT_QUOTES));
-            list($timezone_form,$timezone_js) = templateTZform($GLOBALS['timezone']);
-            $PAGE->assign('timezone_form',$timezone_form); // FIXME: put entire tz form generation in template ?
-            $PAGE->assign('timezone_js',$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());
-            $PAGE->renderPage('changetag');
-            exit;
-        }
-        if (!tokenOk($_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;
-            }
-            $LINKSDB->savedb(); // save to disk
-            echo '';
-            exit;
-        }
-
-        // Rename a tag:
-        if (!empty($_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']); // Remplace tags value.
-                $value['tags']=trim(implode(' ',$tags));
-                $LINKSDB[$key]=$value;
-            }
-            $LINKSDB->savedb(); // save to disk
-            echo '';
-            exit;
-        }
-    }
-
-    // -------- User wants to add a link without using the bookmarklet: show form.
-    if (isset($_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.
-        $linkdate=$_POST['lf_linkdate'];
-        $link = array('title'=>trim($_POST['lf_title']),'url'=>trim($_POST['lf_url']),'description'=>trim($_POST['lf_description']),'snippet'=>trim($_POST['lf_snippet']),'private'=>(isset($_POST['lf_private']) ? 1 : 0),'linkdate'=>$linkdate,'tags'=>str_replace(',',' ',$tags), 'via'=>trim($_POST['lf_via']));
-        if ($link['title']=='') $link['title']=$link['url']; // If title is empty, use the URL as title.
-        $LINKSDB[$linkdate] = $link;
-        $LINKSDB->savedb(); // save to disk
-        pubsubhub();
-
-        // If we are called from the bookmarklet, we must close the popup:
-        if (isset($_GET['source']) && $_GET['source']=='bookmarklet') { echo ''; exit; }
-        $returnurl = ( isset($_POST['returnurl']) ? $_POST['returnurl'] : '?' );
-        header('Location: '.$returnurl); // 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') { echo ''; exit; }
-        $returnurl = ( isset($_POST['returnurl']) ? $_POST['returnurl'] : '?' );
-        header('Location: '.$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]);
-        $LINKSDB->savedb(); // save to disk
-
-        // If we are called from the bookmarklet, we must close the popup:
-        if (isset($_GET['source']) && $_GET['source']=='bookmarklet') { echo ''; exit; }
-        $returnurl = ( isset($_POST['returnurl']) ? $_POST['returnurl'] : '?' );
-        if ($returnurl=='?') { $returnurl = (isset($_SERVER['HTTP_REFERER']) ? $_SERVER['HTTP_REFERER'] : '?'); }
-        header('Location: '.$returnurl); // After deleting the link, redirect to the page the user was on.
-        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']) ? $_SERVER['HTTP_REFERER'] : ''));
-        $PAGE->renderPage('editlink');
-        exit;
-    }
-
-    // -------- User want to post a new link: Display link edit form.
-    if (isset($_GET['post']))
-    {
-        $url=$_GET['post'];
-
-        // We remove the annoying parameters added by FeedBurner and GoogleFeedProxy (?utm_source=...)
-        $i=strpos($url,'&utm_source='); if ($i!==false) $url=substr($url,0,$i);
-        $i=strpos($url,'?utm_source='); if ($i!==false) $url=substr($url,0,$i);
-        $i=strpos($url,'#xtor=RSS-'); if ($i!==false) $url=substr($url,0,$i);
-
-        $link_is_new = false;
-        $link = $LINKSDB->getLinkFromUrl($url); // Check if URL is not already in database (in this case, we will edit the existing link)
-        if (!$link)
-        {
-            $link_is_new = true;  // This is a new link
-            $linkdate = strval(date('Ymd_His'));
-            $title = (empty($_GET['title']) ? '' : $_GET['title'] ); // Get title if it was provided in URL (by the bookmarklet).
-            $snippet = $via = '';$description=''; $tags=''; $private=0;
-            if (($url!='') && parse_url($url,PHP_URL_SCHEME)=='') $url = 'http://'.$url;
-            // If this is an HTTP link, we try go get the page to extact the title (otherwise we will to straight to the edit form.)
-            if (empty($title) && parse_url($url,PHP_URL_SCHEME)=='http')
-            {
-                list($status,$headers,$data) = getHTTP($url,4); // Short timeout to keep the application responsive.
-                // FIXME: Decode charset according to specified in either 1) HTTP response headers or 2)  in html
-                if (strpos($status,'200 OK')!==false) $title=html_entity_decode(html_extract_title($data),ENT_QUOTES,'UTF-8');
-
-            }
-            if ($url=='') $url='?'.smallHash($linkdate); // In case of empty URL, this is just a text (with a link that point to itself)
-            $link = array('linkdate'=>$linkdate,'title'=>$title,'url'=>$url,'description'=>$description,'snippet'=>$snippet,'tags'=>$tags,'via'=>$via,'private'=>0);
-        }
-
-        $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'] : ''));
-        $PAGE->renderPage('editlink');
-        exit;
-    }
-
-    // -------- Export as Netscape Bookmarks HTML file.
-    if (isset($_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' && $link['private']==0))
-            {
-                echo '
'.htmlspecialchars($link['title'])."\n";
-                if ($link['description']!='') echo '
'.htmlspecialchars($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;
-    $PAGE->assign('linkcount',count($LINKSDB));
-    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(isLoggedIn() || $GLOBALS['config']['OPEN_SHAARLI']);  // Read links from database (and filter private links if used it not logged in).
-    $filename=$_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);
-                    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();
-
-        echo '';
-    }
-    else
-    {
-        echo '';
-    }
-}
-
-// -----------------------------------------------------------------------------------------------
-// Template for the list of links (