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- <?php
- // Shaarli 0.0.42 beta - Shaare your links...
- // The personal, minimalist, super-fast, no-database Delicious clone. By sebsauvage.net
- // http://sebsauvage.net/wiki/doku.php?id=php:shaarli
- // Licence: http://www.opensource.org/licenses/zlib-license.php
- // Requires: PHP 5.1.x (but autocomplete fields will only work if you have PHP 5.2.x)
- // -----------------------------------------------------------------------------------------------
- // NEVER TRUST IN PHP.INI
- // Some hosts do not define a default timezone in php.ini,
- // so we have to do this for avoid the strict standard error.
- date_default_timezone_set('UTC');
- // -----------------------------------------------------------------------------------------------
- // Hardcoded parameter (These parameters can be overwritten by creating the file /config/options.php)
- $GLOBALS['config']['DATADIR'] = 'data'; // Data subdirectory
- $GLOBALS['config']['CONFIG_FILE'] = $GLOBALS['config']['DATADIR'].'/config.php'; // Configuration file (user login/password)
- $GLOBALS['config']['DATASTORE'] = $GLOBALS['config']['DATADIR'].'/datastore.php'; // Data storage file.
- $GLOBALS['config']['LINKS_PER_PAGE'] = 20; // Default links per page.
- $GLOBALS['config']['IPBANS_FILENAME'] = $GLOBALS['config']['DATADIR'].'/ipbans.php'; // File storage for failures and bans.
- $GLOBALS['config']['BAN_AFTER'] = 4; // Ban IP after this many failures.
- $GLOBALS['config']['BAN_DURATION'] = 1800; // Ban duration for IP address after login failures (in seconds) (1800 sec. = 30 minutes)
- $GLOBALS['config']['OPEN_SHAARLI'] = false; // If true, anyone can add/edit/delete links without having to login
- $GLOBALS['config']['HIDE_TIMESTAMPS'] = false; // If true, the moment when links were saved are not shown to users that are not logged in.
- $GLOBALS['config']['SHOW_ATOM'] = false; // If true, an extra "ATOM feed" button will be displayed in the toolbar
- $GLOBALS['config']['ENABLE_THUMBNAILS'] = true; // Enable thumbnails in links.
- $GLOBALS['config']['CACHEDIR'] = 'cache'; // Cache directory for thumbnails for SLOW services (like flickr)
- $GLOBALS['config']['PAGECACHE'] = 'pagecache'; // Page cache directory.
- $GLOBALS['config']['ENABLE_LOCALCACHE'] = true; // Enable Shaarli to store thumbnail in a local cache. Disable to reduce web space usage.
- $GLOBALS['config']['PUBSUBHUB_URL'] = ''; // PubSubHubbub support. Put an empty string to disable, or put your hub url here to enable.
- $GLOBALS['config']['RAINTPL_TMP'] = 'tmp/' ; // Raintpl cache directory (keep the trailing slash!)
- $GLOBALS['config']['RAINTPL_TPL'] = 'tpl/' ; // Raintpl template directory (keep the trailing slash!)
- $GLOBALS['config']['UPDATECHECK_FILENAME'] = $GLOBALS['config']['DATADIR'].'/lastupdatecheck.txt'; // For updates check of Shaarli.
- $GLOBALS['config']['UPDATECHECK_INTERVAL'] = 86400 ; // Updates check frequency for Shaarli. 86400 seconds=24 hours
- // Note: You must have publisher.php in the same directory as Shaarli index.php
- $GLOBALS['config']['ARCHIVE_ORG'] = false; // For each link, add a link to an archived version on archive.org
- // -----------------------------------------------------------------------------------------------
- // You should not touch below (or at your own risks!)
- // Optional config file.
- if (is_file($GLOBALS['config']['DATADIR'].'/options.php')) require($GLOBALS['config']['DATADIR'].'/options.php');
- define('shaarli_version','0.0.42 beta');
- define('PHPPREFIX','<?php /* '); // Prefix to encapsulate data in PHP code.
- define('PHPSUFFIX',' */ ?>'); // Suffix to encapsulate data in PHP code.
- // http://server.com/x/shaarli --> /shaarli/
- define('WEB_PATH', substr($_SERVER["REQUEST_URI"], 0, 1+strrpos($_SERVER["REQUEST_URI"], '/', 0)));
- // Force cookie path (but do not change lifetime)
- $cookie=session_get_cookie_params();
- $cookiedir = ''; if(dirname($_SERVER['SCRIPT_NAME'])!='/') $cookiedir=dirname($_SERVER["SCRIPT_NAME"]).'/';
- session_set_cookie_params($cookie['lifetime'],$cookiedir,$_SERVER['HTTP_HOST']); // Set default cookie expiration and path.
- // Set session parameters on server side.
- define('INACTIVITY_TIMEOUT',3600); // (in seconds). If the user does not access any page within this time, his/her session is considered expired.
- ini_set('session.use_cookies', 1); // Use cookies to store session.
- ini_set('session.use_only_cookies', 1); // Force cookies for session (phpsessionID forbidden in URL).
- ini_set('session.use_trans_sid', false); // Prevent PHP form using sessionID in URL if cookies are disabled.
- session_name('shaarli');
- if (session_id() == '') session_start(); // Start session if needed (Some server auto-start sessions).
- // PHP Settings
- ini_set('max_input_time','60'); // High execution time in case of problematic imports/exports.
- ini_set('memory_limit', '128M'); // Try to set max upload file size and read (May not work on some hosts).
- ini_set('post_max_size', '16M');
- ini_set('upload_max_filesize', '16M');
- checkphpversion();
- error_reporting(E_ALL^E_WARNING); // See all error except warnings.
- //error_reporting(-1); // See all errors (for debugging only)
- include "inc/rain.tpl.class.php"; //include Rain TPL
- raintpl::$tpl_dir = $GLOBALS['config']['RAINTPL_TPL']; // template directory
- raintpl::$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', $_COOKIE);
- }
- // Prevent caching on client side or proxy: (yes, it's ugly)
- header("Last-Modified: " . gmdate("D, d M Y H:i:s") . " GMT");
- header("Cache-Control: no-store, no-cache, must-revalidate");
- header("Cache-Control: post-check=0, pre-check=0", false);
- header("Pragma: no-cache");
- // Directories creations (Note that your web host may require different rights than 705.)
- if (!is_writable(realpath(dirname(__FILE__)))) die('<pre>ERROR: Shaarli does not have the right to write in its own directory ('.realpath(dirname(__FILE__)).').</pre>');
- // Handling of old config file which do not have the new parameters.
- if (empty($GLOBALS['title'])) $GLOBALS['title']='Shared links on '.htmlspecialchars(indexUrl());
- if (empty($GLOBALS['timezone'])) $GLOBALS['timezone']=date_default_timezone_get();
- if (empty($GLOBALS['redirector'])) $GLOBALS['redirector']='';
- if (empty($GLOBALS['disablesessionprotection'])) $GLOBALS['disablesessionprotection']=false;
- if (empty($GLOBALS['disablejquery'])) $GLOBALS['disablejquery']=false;
- if (empty($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();
- require $GLOBALS['config']['CONFIG_FILE']; // Read login/password hash into $GLOBALS.
- // a token depending of deployment salt, user password, and the current ip
- define('STAY_SIGNED_IN_TOKEN', sha1($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.
- // 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 least 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'])<time()-($GLOBALS['config']['UPDATECHECK_INTERVAL'])))
- {
- $version=shaarli_version;
- list($httpstatus,$headers,$data) = getHTTP('https://raw.githubusercontent.com/shaarli/Shaarli/master/shaarli_version.txt',2);
- if (strpos($httpstatus,'200 OK')!==false) $version=$data;
- // If failed, never mind. We don't want to bother the user with that.
- file_put_contents($GLOBALS['config']['UPDATECHECK_FILENAME'],$version); // touch file date
- }
- // Compare versions:
- $newestversion=file_get_contents($GLOBALS['config']['UPDATECHECK_FILENAME']);
- if (version_compare($newestversion,shaarli_version)==1) return $newestversion;
- return '';
- }
- // -----------------------------------------------------------------------------------------------
- // Simple cache system (mainly for the RSS/ATOM feeds).
- class pageCache
- {
- private $url; // Full URL of the page to cache (typically the value returned by pageUrl())
- private $shouldBeCached; // boolean: Should this url be cached?
- private $filename; // Name of the cache file for this url.
- /*
- $url = URL (typically the value returned by pageUrl())
- $shouldBeCached = boolean. If false, the cache will be disabled.
- */
- public function __construct($url,$shouldBeCached)
- {
- $this->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;
- 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 ($handler!==false)
- {
- while (($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($html)));
- }
- /* Returns the small hash of a string, using RFC 4648 base64url format
- e.g. smallHash('20111006_131924') --> yZH23w
- Small hashes:
- - are unique (well, as unique as crc32, at last)
- - are always 6 characters long.
- - only use the following characters: a-z A-Z 0-9 - _ @
- - are NOT cryptographically secure (they CAN be forged)
- In Shaarli, they are used as a tinyurl-like link to individual entries.
- */
- function smallHash($text)
- {
- $t = rtrim(base64_encode(hash('crc32',$text,true)),'=');
- return strtr($t, '+/', '-_');
- }
- // In a string, converts URLs to clickable links.
- // Function inspired from http://www.php.net/manual/en/function.preg-replace.php#85722
- function text2clickable($url)
- {
- $redir = empty($GLOBALS['redirector']) ? '' : $GLOBALS['redirector'];
- return preg_replace('!(((?:https?|ftp|file)://|apt:|magnet:)\S+[[:alnum:]]/?)!si','<a href="'.$redir.'$1" rel="nofollow">$1</a>',$url);
- }
- // This function inserts where relevant so that multiple spaces are properly displayed in HTML
- // even in the absence of <pre> (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'])) // 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];
- }
- 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
- // 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 '.$login);
- return False;
- }
- // Returns true if the user is logged in.
- function isLoggedIn()
- {
- if ($GLOBALS['config']['OPEN_SHAARLI']) return true;
- if (!isset($GLOBALS['login'])) return false; // Shaarli is not configured yet.
- if (@$_COOKIE['shaarli_staySignedIn']===STAY_SIGNED_IN_TOKEN)
- {
- fillSessionInfo();
- 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($_SESSION['username']); unset($_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'], "<?php\n\$GLOBALS['IPBANS']=".var_export(array('FAILURES'=>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'], "<?php\n\$GLOBALS['IPBANS']=".var_export($gb,true).";\n?>");
- }
- // 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'], "<?php\n\$GLOBALS['IPBANS']=".var_export($gb,true).";\n?>");
- }
- // 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($GLOBALS['config']['IPBANS_FILENAME'], "<?php\n\$GLOBALS['IPBANS']=".var_export($gb,true).";\n?>");
- return true; // Ban has expired, user can login.
- }
- return false; // User is banned.
- }
- return true; // User is not banned.
- }
- // ------------------------------------------------------------------------------------------
- // Process login form: Check if login/password is correct.
- if (isset($_POST['login']))
- {
- if (!ban_canLogin()) die('I said: NO. You are banned for the moment. Go away.');
- if (isset($_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['HTTP_HOST']); // 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['HTTP_HOST']); // 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($_GET['description'])?'&description='.urlencode($_GET['description']):'').(!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();
- $redir = '';
- if (isset($_GET['post'])) { $redir = '&post='.urlencode($_GET['post']).(!empty($_GET['title'])?'&title='.urlencode($_GET['title']):'').(!empty($_GET['description'])?'&description='.urlencode($_GET['description']):'').(!empty($_GET['source'])?'&source='.urlencode($_GET['source']):''); }
- echo '<script language="JavaScript">alert("Wrong login/password.");document.location=\'?do=login'.$redir.'\';</script>'; // 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['HTTP_HOST'].$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 $maxsize;
- }
- // Tells if a string start with a substring or not.
- function startsWith($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 locale 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://...)
- $timeout : Network timeout (will wait this many seconds for an anwser before giving up).
- Output: An array. [0] = HTTP status message (e.g. "HTTP/1.1 200 OK") or error message
- [1] = associative array containing HTTP response headers (e.g. echo getHTTP($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, 'user_agent' => 'Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:23.0) Gecko/20100101 Firefox/23.0')); // 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]; // e.g. "HTTP/1.1 200 OK"
- $responseHeaders=http_parse_headers_shaarli($http_response_header);
- return array($httpStatus,$responseHeaders,$data);
- }
- catch (Exception $e) // getHTTP *can* fail silently (we don't care if the title cannot be fetched)
- {
- return array($e->getMessage(),'','');
- }
- }
- // Extract title from an HTML document.
- // (Returns an empty string if not found.)
- function html_extract_title($html)
- {
- return preg_match('!<title>(.*?)</title>!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',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['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);
- }
- }
- // ------------------------------------------------------------------------------------------
- /* 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 (e.g.'?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 (e.g.'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 (e.g. "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 $loggedin; // Is the user logged in? (used to filter private links)
- // Constructor:
- function __construct($isLoggedIn)
- // Input : $isLoggedIn : is the user 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://sebsauvage.net/paste/?8434b27936c09649#bR7XsXhoTiLcqCpQbmOpBi3rq2zzQUC5hBI7ZT1O3x8=','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 if it does not exist.
- public function getLinkFromUrl($url)
- {
- if (isset($this->urls[$url])) return $this->links[$this->urls[$url]];
- return false;
- }
- // Case insensitive search among links (in the URLs, title and description). Returns filtered list of links.
- // e.g. print_r($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['url']),$s)!==false)
- || (strpos(strtolower($l['tags']),$s)!==false);
- if ($found) $filtered[$l['linkdate']] = $l;
- }
- krsort($filtered);
- return $filtered;
- }
- // Filter by tag.
- // You can specify one or more tags (tags can be separated by space or comma).
- // e.g. print_r($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 $filtered;
- }
- // Filter by day. Day must be in the form 'YYYYMMDD' (e.g. '20120125')
- // Sort order is: older articles first.
- // e.g. print_r($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;
- }
- }
- // ------------------------------------------------------------------------------------------
- // 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
- $usepermalinks = isset($_GET['permalinks']);
- // 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 user it not logged in).
- // Optionally 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;
- $nblinksToDisplay = 50; // Number of links to display.
- if (!empty($_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) ;
- }
- $pageaddr=htmlspecialchars(indexUrl());
- echo '<?xml version="1.0" encoding="UTF-8"?><rss version="2.0" xmlns:content="http://purl.org/rss/1.0/modules/content/">';
- echo '<channel><title>'.htmlspecialchars($GLOBALS['title']).'</title><link>'.$pageaddr.'</link>';
- echo '<description>Shared links</description><language>en-en</language><copyright>'.$pageaddr.'</copyright>'."\n\n";
- if (!empty($GLOBALS['config']['PUBSUBHUB_URL']))
- {
- echo '<!-- PubSubHubbub Discovery -->';
- echo '<link rel="hub" href="'.htmlspecialchars($GLOBALS['config']['PUBSUBHUB_URL']).'" xmlns="http://www.w3.org/2005/Atom" />';
- echo '<link rel="self" href="'.htmlspecialchars($pageaddr).'?do=rss" xmlns="http://www.w3.org/2005/Atom" />';
- echo '<!-- End Of PubSubHubbub Discovery -->';
- }
- $i=0;
- $keys=array(); foreach($linksToDisplay as $key=>$value) { $keys[]=$key; } // No, I can't use array_keys().
- while ($i<$nblinksToDisplay && $i<count($keys))
- {
- $link = $linksToDisplay[$keys[$i]];
- $guid = $pageaddr.'?'.smallHash($link['linkdate']);
- $rfc822date = linkdate2rfc822($link['linkdate']);
- $absurl = htmlspecialchars($link['url']);
- if (startsWith($absurl,'?')) $absurl=$pageaddr.$absurl; // make permalink URL absolute
- if ($usepermalinks===true)
- echo '<item><title>'.htmlspecialchars($link['title']).'</title><guid isPermaLink="false">'.$guid.'</guid><link>'.$guid.'</link>';
- else
- echo '<item><title>'.htmlspecialchars($link['title']).'</title><guid isPermaLink="false">'.$guid.'</guid><link>'.$absurl.'</link>';
- if (!$GLOBALS['config']['HIDE_TIMESTAMPS'] || isLoggedIn()) echo '<pubDate>'.htmlspecialchars($rfc822date)."</pubDate>\n";
- if ($link['tags']!='') // Adding tags to each RSS entry (as mentioned in RSS specification)
- {
- foreach(explode(' ',$link['tags']) as $tag) { echo '<category domain="'.htmlspecialchars($pageaddr).'">'.htmlspecialchars($tag).'</category>'."\n"; }
- }
- // Add permalink in description
- $descriptionlink = '(<a href="'.$guid.'">Permalink</a>)';
- // If user wants permalinks first, put the final link in description
- if ($usepermalinks===true) $descriptionlink = '(<a href="'.$absurl.'">Link</a>)';
- if (strlen($link['description'])>0) $descriptionlink = '<br>'.$descriptionlink;
- echo '<description><![CDATA['.nl2br(keepMultipleSpaces(text2clickable(htmlspecialchars($link['description'])))).$descriptionlink.']]></description>'."\n</item>\n";
- $i++;
- }
- echo '</channel></rss><!-- Cached version of '.htmlspecialchars(pageUrl()).' -->';
- $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']);
- // 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).
- // Optionally 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;
- $nblinksToDisplay = 50; // Number of links to display.
- if (!empty($_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=htmlspecialchars(indexUrl());
- $latestDate = '';
- $entries='';
- $i=0;
- $keys=array(); foreach($linksToDisplay as $key=>$value) { $keys[]=$key; } // No, I can't use array_keys().
- while ($i<$nblinksToDisplay && $i<count($keys))
- {
- $link = $linksToDisplay[$keys[$i]];
- $guid = $pageaddr.'?'.smallHash($link['linkdate']);
- $iso8601date = linkdate2iso8601($link['linkdate']);
- $latestDate = max($latestDate,$iso8601date);
- $absurl = htmlspecialchars($link['url']);
- if (startsWith($absurl,'?')) $absurl=$pageaddr.$absurl; // make permalink URL absolute
- $entries.='<entry><title>'.htmlspecialchars($link['title']).'</title>';
- if ($usepermalinks===true)
- $entries.='<link href="'.$guid.'" /><id>'.$guid.'</id>';
- else
- $entries.='<link href="'.$absurl.'" /><id>'.$guid.'</id>';
- if (!$GLOBALS['config']['HIDE_TIMESTAMPS'] || isLoggedIn()) $entries.='<updated>'.htmlspecialchars($iso8601date).'</updated>';
- // Add permalink in description
- $descriptionlink = htmlspecialchars('(<a href="'.$guid.'">Permalink</a>)');
- // If user wants permalinks first, put the final link in description
- if ($usepermalinks===true) $descriptionlink = htmlspecialchars('(<a href="'.$absurl.'">Link</a>)');
- if (strlen($link['description'])>0) $descriptionlink = '<br>'.$descriptionlink;
- $entries.='<content type="html">'.htmlspecialchars(nl2br(keepMultipleSpaces(text2clickable(htmlspecialchars($link['description']))))).$descriptionlink."</content>\n";
- if ($link['tags']!='') // Adding tags to each ATOM entry (as mentioned in ATOM specification)
- {
- foreach(explode(' ',$link['tags']) as $tag)
- { $entries.='<category scheme="'.htmlspecialchars($pageaddr,ENT_QUOTES).'" term="'.htmlspecialchars($tag,ENT_QUOTES).'" />'."\n"; }
- }
- $entries.="</entry>\n";
- $i++;
- }
- $feed='<?xml version="1.0" encoding="UTF-8"?><feed xmlns="http://www.w3.org/2005/Atom">';
- $feed.='<title>'.htmlspecialchars($GLOBALS['title']).'</title>';
- if (!$GLOBALS['config']['HIDE_TIMESTAMPS'] || isLoggedIn()) $feed.='<updated>'.htmlspecialchars($latestDate).'</updated>';
- $feed.='<link rel="self" href="'.htmlspecialchars(serverUrl().$_SERVER["REQUEST_URI"]).'" />';
- if (!empty($GLOBALS['config']['PUBSUBHUB_URL']))
- {
- $feed.='<!-- PubSubHubbub Discovery -->';
- $feed.='<link rel="hub" href="'.htmlspecialchars($GLOBALS['config']['PUBSUBHUB_URL']).'" />';
- $feed.='<!-- End Of PubSubHubbub Discovery -->';
- }
- $feed.='<author><name>'.htmlspecialchars($pageaddr).'</name><uri>'.htmlspecialchars($pageaddr).'</uri></author>';
- $feed.='<id>'.htmlspecialchars($pageaddr).'</id>'."\n\n"; // Yes, I know I should use a real IRI (RFC3987), but the site URL will do.
- $feed.=$entries;
- $feed.='</feed><!-- Cached version of '.htmlspecialchars(pageUrl()).' -->';
- 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');
- $pageaddr=htmlspecialchars(indexUrl());
- echo '<?xml version="1.0" encoding="UTF-8"?><rss version="2.0">';
- echo '<channel><title>Daily - '.htmlspecialchars($GLOBALS['title']).'</title><link>'.$pageaddr.'</link>';
- echo '<description>Daily shared links</description><language>en-en</language><copyright>'.$pageaddr.'</copyright>'."\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 '<item><title>'.htmlspecialchars($GLOBALS['title'].' - '.$daydate).'</title><guid>'.$absurl.'</guid><link>'.$absurl.'</link>';
- echo '<pubDate>'.htmlspecialchars($rfc822date)."</pubDate>";
- // 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 '<description><![CDATA['.$html.']]></description>'."\n</item>\n\n";
- }
- echo '</channel></rss><!-- Cached version of '.htmlspecialchars(pageUrl()).' -->';
- $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[$i-1];
- if ($i<count($days)-1) $nextday=$days[$i+1];
- }
- $linksToDisplay=$LINKSDB->filterDay($day);
- // We pre-format some fields for proper output.
- foreach($linksToDisplay as $key=>$link)
- {
- $taglist = explode(' ',$link['tags']);
- uasort($taglist, 'strcasecmp');
- $linksToDisplay[$key]['taglist']=$taglist;
- $linksToDisplay[$key]['formatedDescription']=nl2br(keepMultipleSpaces(text2clickable(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'))
- {
- // 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)
- {
- $permalink='?'.htmlspecialchars(smallhash($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);
- // Check if this tag is already in the search query and ignore it if it is.
- // Each tag is always separated by a space
- $current_tags = explode(' ', $params['searchtags']);
- $addtag = true;
- foreach ($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), $params);
- if (isset($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'])); }
- // Make sure the referrer is Shaarli itself.
- $referer = '?';
- if (!empty($_SERVER['HTTP_REFERER']) && strcmp(parse_url($_SERVER['HTTP_REFERER'],PHP_URL_HOST),$_SERVER['HTTP_HOST'])==0)
- $referer = $_SERVER['HTTP_REFERER'];
- header('Location: '.$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
- }
- // Make sure the referrer is Shaarli itself.
- $referer = '?';
- if (!empty($_SERVER['HTTP_REFERER']) && strcmp(parse_url($_SERVER['HTTP_REFERER'],PHP_URL_HOST),$_SERVER['HTTP_HOST'])==0)
- $referer = $_SERVER['HTTP_REFERER'];
- header('Location: '.$referer);
- 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;
- }
- $PAGE = new pageBuilder;
- buildLinkList($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 '<script language="JavaScript">alert("The old password is not correct.");document.location=\'?do=changepasswd\';</script>'; 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 '<script language="JavaScript">alert("Your password has been changed.");document.location=\'?do=tools\';</script>';
- 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'];
- $GLOBALS['titleLink']=$_POST['titleLink'];
- $GLOBALS['redirector']=$_POST['redirector'];
- $GLOBALS['disablesessionprotection']=!empty($_POST['disablesessionprotection']);
- $GLOBALS['disablejquery']=!empty($_POST['disablejquery']);
- $GLOBALS['privateLinkByDefault']=!empty($_POST['privateLinkByDefault']);
- writeConfig();
- echo '<script language="JavaScript">alert("Configuration was saved.");document.location=\'?do=tools\';</script>';
- 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;
- }
- $LINKSDB->savedb(); // Save to disk.
- echo '<script language="JavaScript">alert("Tag was removed from '.count($linksToAlter).' links.");document.location=\'?\';</script>';
- 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;
- }
- $LINKSDB->savedb(); // Save to disk.
- echo '<script language="JavaScript">alert("Tag was renamed in '.count($linksToAlter).' links.");document.location=\'?searchtags='.urlencode($_POST['totag']).'\';</script>';
- exit;
- }
- }
- // -------- User wants to add a link without using the bookmarklet: Show form.
- if (isset($_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'];
- $url = trim($_POST['lf_url']);
- if (!startsWith($url,'http:') && !startsWith($url,'https:') && !startsWith($url,'ftp:') && !startsWith($url,'magnet:') && !startsWith($url,'?'))
- $url = 'http://'.$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;
- $LINKSDB->savedb(); // Save to disk.
- pubsubhub();
- // If we are called from the bookmarklet, we must close the popup:
- if (isset($_GET['source']) && $_GET['source']=='bookmarklet') { echo '<script language="JavaScript">self.close();</script>'; exit; }
- $returnurl = ( isset($_POST['returnurl']) ? $_POST['returnurl'] : '?' );
- $returnurl .= '#'.smallHash($linkdate); // Scroll to the link which has been edited.
- 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 '<script language="JavaScript">self.close();</script>'; exit; }
- $returnurl = ( isset($_POST['returnurl']) ? $_POST['returnurl'] : '?' );
- $returnurl .= '#'.smallHash($_POST['lf_linkdate']); // Scroll to the link which has been edited.
- 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 '<script language="JavaScript">self.close();</script>'; 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).
- $description = (empty($_GET['description']) ? '' : $_GET['description']); // Get description if it was provided in URL (by the bookmarklet). [Bronco added that]
- $tags = (empty($_GET['tags']) ? '' : $_GET['tags'] ); // Get tags if it was provided in URL
- $private = (!empty($_GET['private']) && $_GET['private'] === "1" ? 1 : 0); // Get private if it was provided in URL
- if (($url!='') && parse_url($url,PHP_URL_SCHEME)=='') $url = 'http://'.$url;
- // If this is an HTTP link, we try go get the page to extract 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) <head> in html
- if (strpos($status,'200 OK')!==false)
- {
- // Look for charset in html header.
- preg_match('#<meta .*charset=.*>#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=='') // In case of empty URL, this is just a text (with a link that points to itself)
- {
- $url='?'.smallHash($linkdate);
- $title='Note: ';
- }
- $link = array('linkdate'=>$linkdate,'title'=>$title,'url'=>$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'] : ''));
- $PAGE->renderPage('editlink');
- exit;
- }
- // -------- Export as Netscape Bookmarks HTML file.
- if (isset($_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');
- $currentdate=date('Y/m/d H:i:s');
- echo <<<HTML
- <!DOCTYPE NETSCAPE-Bookmark-file-1>
- <!-- This is an automatically generated file.
- It will be read and overwritten.
- DO NOT EDIT! -->
- <!-- Shaarli {$exportWhat} bookmarks export on {$currentdate} -->
- <META HTTP-EQUIV="Content-Type" CONTENT="text/html; charset=UTF-8">
- <TITLE>Bookmarks</TITLE>
- <H1>Bookmarks</H1>
- HTML;
- foreach($LINKSDB as $link)
- {
- if ($exportWhat=='all' ||
- ($exportWhat=='private' && $link['private']!=0) ||
- ($exportWhat=='public' && $link['private']==0))
- {
- echo '<DT><A HREF="'.htmlspecialchars($link['url']).'" ADD_DATE="'.linkdate2timestamp($link['linkdate']).'" PRIVATE="'.$link['private'].'"';
- if ($link['tags']!='') echo ' TAGS="'.htmlspecialchars(str_replace(' ',',',$link['tags'])).'"';
- echo '>'.htmlspecialchars($link['title'])."</A>\n";
- if ($link['description']!='') echo '<DD>'.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']) ? '?' : $_SERVER['HTTP_REFERER'] );
- echo '<script language="JavaScript">alert("The file you are trying to upload is probably bigger than what this webserver can accept ('.getMaxFileSize().' bytes). Please upload in smaller chunks.");document.location=\''.htmlspecialchars($returnurl).'\';</script>';
- 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,'<!DOCTYPE NETSCAPE-Bookmark-file-1>')) $type='netscape'; // Netscape bookmark file (aka Firefox).
- // Then import the bookmarks.
- if ($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('<DT>',$data) as $html) // explode is very fast
- {
- $link = array('linkdate'=>'','title'=>'','url'=>'','description'=>'','tags'=>'','private'=>0);
- $d = explode('<DD>',$html);
- if (startswith($d[0],'<A '))
- {
- $link['description'] = (isset($d[1]) ? html_entity_decode(trim($d[1]),ENT_QUOTES,'UTF-8') : ''); // Get description (optional)
- preg_match('!<A .*?>(.*?)</A>!i',$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++;
- }
- }
- }
- }
- }
- $LINKSDB->savedb();
- echo '<script language="JavaScript">alert("File '.json_encode($filename).' ('.$filesize.' bytes) was successfully processed: '.$import_count.' links imported.");document.location=\'?\';</script>';
- }
- else
- {
- echo '<script language="JavaScript">alert("File '.json_encode($filename).' ('.$filesize.' bytes) has an unknown file format. Nothing was imported.");document.location=\'?\';</script>';
- }
- }
- // -----------------------------------------------------------------------------------------------
- // Template for the list of links (<div id="linklist">)
- // This function fills all the necessary fields in the $PAGE for the template 'linklist.html'
- function buildLinkList($PAGE,$LINKSDB)
- {
- // ---- Filter link database according to parameters
- $linksToDisplay=array();
- $search_type='';
- $search_crits='';
- if (isset($_GET['searchterm'])) // Fulltext search
- {
- $linksToDisplay = $LINKSDB->filterFulltext(trim($_GET['searchterm']));
- $search_crits=htmlspecialchars(trim($_GET['searchterm']));
- $search_type='fulltext';
- }
- elseif (isset($_GET['searchtags'])) // Search by tag
- {
- $linksToDisplay = $LINKSDB->filterTags(trim($_GET['searchtags']));
- $search_crits=explode(' ',trim($_GET['searchtags']));
- $search_type='tags';
- }
- elseif (isset($_SERVER['QUERY_STRING']) && preg_match('/[a-zA-Z0-9-_@]{6}(&.+?)?/',$_SERVER['QUERY_STRING'])) // Detect smallHashes in URL
- {
- $linksToDisplay = $LINKSDB->filterSmallHash(substr(trim($_SERVER["QUERY_STRING"], '/'),0,6));
- if (count($linksToDisplay)==0)
- {
- header($_SERVER["SERVER_PROTOCOL"]." 404 Not Found");
- echo '<h1>404 Not found.</h1>Oh crap. The link you are trying to reach does not exist or has been deleted.';
- echo '<br>You would mind <a href="?">clicking here</a>?';
- exit;
- }
- $search_type='permalink';
- }
- else
- $linksToDisplay = $LINKSDB; // Otherwise, display without filtering.
- // Option: Show only private links
- if (!empty($_SESSION['privateonly']))
- {
- $tmp = array();
- foreach($linksToDisplay as $linkdate=>$link)
- {
- if ($link['private']!=0) $tmp[$linkdate]=$link;
- }
- $linksToDisplay=$tmp;
- }
- // ---- Handle paging.
- /* Can someone explain to me why you get the following error when using array_keys() on an object which implements the interface ArrayAccess???
- "Warning: array_keys() expects parameter 1 to be array, object given in ... "
- If my class implements ArrayAccess, why won't array_keys() accept it ? ( $keys=array_keys($linksToDisplay); )
- */
- $keys=array(); foreach($linksToDisplay as $key=>$value) { $keys[]=$key; } // Stupid and ugly. Thanks PHP.
- // If there is only a single link, we change on-the-fly the title of the page.
- if (count($linksToDisplay)==1) $GLOBALS['pagetitle'] = $linksToDisplay[$keys[0]]['title'].' - '.$GLOBALS['title'];
- // Select articles according to paging.
- $pagecount = ceil(count($keys)/$_SESSION['LINKS_PER_PAGE']);
- $pagecount = ($pagecount==0 ? 1 : $pagecount);
- $page=( empty($_GET['page']) ? 1 : intval($_GET['page']));
- $page = ( $page<1 ? 1 : $page );
- $page = ( $page>$pagecount ? $pagecount : $page );
- $i = ($page-1)*$_SESSION['LINKS_PER_PAGE']; // Start index.
- $end = $i+$_SESSION['LINKS_PER_PAGE'];
- $linkDisp=array(); // Links to display
- while ($i<$end && $i<count($keys))
- {
- $link = $linksToDisplay[$keys[$i]];
- $link['description']=nl2br(keepMultipleSpaces(text2clickable(htmlspecialchars($link['description']))));
- $title=$link['title'];
- $classLi = $i%2!=0 ? '' : 'publicLinkHightLight';
- $link['class'] = ($link['private']==0 ? $classLi : 'private');
- $link['localdate']=linkdate2locale($link['linkdate']);
- $taglist = explode(' ',$link['tags']);
- uasort($taglist, 'strcasecmp');
- $link['taglist']=$taglist;
- $linkDisp[$keys[$i]] = $link;
- $i++;
- }
- // Compute paging navigation
- $searchterm= ( empty($_GET['searchterm']) ? '' : '&searchterm='.$_GET['searchterm'] );
- $searchtags= ( empty($_GET['searchtags']) ? '' : '&searchtags='.$_GET['searchtags'] );
- $paging='';
- $previous_page_url=''; if ($i!=count($keys)) $previous_page_url='?page='.($page+1).$searchterm.$searchtags;
- $next_page_url='';if ($page>1) $next_page_url='?page='.($page-1).$searchterm.$searchtags;
- $token = ''; if (isLoggedIn()) $token=getToken();
- // Fill all template fields.
- $PAGE->assign('linkcount',count($LINKSDB));
- $PAGE->assign('previous_page_url',$previous_page_url);
- $PAGE->assign('next_page_url',$next_page_url);
- $PAGE->assign('page_current',$page);
- $PAGE->assign('page_max',$pagecount);
- $PAGE->assign('result_count',count($linksToDisplay));
- $PAGE->assign('search_type',$search_type);
- $PAGE->assign('search_crits',$search_crits);
- $PAGE->assign('redirector',empty($GLOBALS['redirector']) ? '' : $GLOBALS['redirector']); // Optional redirector URL.
- $PAGE->assign('token',$token);
- $PAGE->assign('links',$linkDisp);
- return;
- }
- // Compute the thumbnail for a link.
- //
- // With a link to the original URL.
- // Understands various services (youtube.com...)
- // Input: $url = URL for which the thumbnail must be found.
- // $href = if provided, this URL will be followed instead of $url
- // Returns an associative array with thumbnail attributes (src,href,width,height,style,alt)
- // Some of them may be missing.
- // Return an empty array if no thumbnail available.
- function computeThumbnail($url,$href=false)
- {
- if (!$GLOBALS['config']['ENABLE_THUMBNAILS']) return array();
- if ($href==false) $href=$url;
- // For most hosts, the URL of the thumbnail can be easily deduced from the URL of the link.
- // (e.g. http://www.youtube.com/watch?v=spVypYk4kto ---> http://img.youtube.com/vi/spVypYk4kto/default.jpg )
- // ^^^^^^^^^^^ ^^^^^^^^^^^
- $domain = parse_url($url,PHP_URL_HOST);
- if ($domain=='youtube.com' || $domain=='www.youtube.com')
- {
- parse_str(parse_url($url,PHP_URL_QUERY), $params); // Extract video ID and get thumbnail
- if (!empty($params['v'])) return array('src'=>'https://img.youtube.com/vi/'.$params['v'].'/default.jpg',
- 'href'=>$href,'width'=>'120','height'=>'90','alt'=>'YouTube thumbnail');
- }
- if ($domain=='youtu.be') // Youtube short links
- {
- $path = parse_url($url,PHP_URL_PATH);
- return array('src'=>'https://img.youtube.com/vi'.$path.'/default.jpg',
- 'href'=>$href,'width'=>'120','height'=>'90','alt'=>'YouTube thumbnail');
- }
- if ($domain=='pix.toile-libre.org') // pix.toile-libre.org image hosting
- {
- parse_str(parse_url($url,PHP_URL_QUERY), $params); // Extract image filename.
- if (!empty($params) && !empty($params['img'])) return array('src'=>'http://pix.toile-libre.org/upload/thumb/'.urlencode($params['img']),
- 'href'=>$href,'style'=>'max-width:120px; max-height:150px','alt'=>'pix.toile-libre.org thumbnail');
- }
- if ($domain=='imgur.com')
- {
- $path = parse_url($url,PHP_URL_PATH);
- if (startsWith($path,'/a/')) return array(); // Thumbnails for albums are not available.
- if (startsWith($path,'/r/')) return array('src'=>'https://i.imgur.com/'.basename($path).'s.jpg',
- 'href'=>$href,'width'=>'90','height'=>'90','alt'=>'imgur.com thumbnail');
- if (startsWith($path,'/gallery/')) return array('src'=>'https://i.imgur.com'.substr($path,8).'s.jpg',
- 'href'=>$href,'width'=>'90','height'=>'90','alt'=>'imgur.com thumbnail');
- if (substr_count($path,'/')==1) return array('src'=>'https://i.imgur.com/'.substr($path,1).'s.jpg',
- 'href'=>$href,'width'=>'90','height'=>'90','alt'=>'imgur.com thumbnail');
- }
- if ($domain=='i.imgur.com')
- {
- $pi = pathinfo(parse_url($url,PHP_URL_PATH));
- if (!empty($pi['filename'])) return array('src'=>'https://i.imgur.com/'.$pi['filename'].'s.jpg',
- 'href'=>$href,'width'=>'90','height'=>'90','alt'=>'imgur.com thumbnail');
- }
- if ($domain=='dailymotion.com' || $domain=='www.dailymotion.com')
- {
- if (strpos($url,'dailymotion.com/video/')!==false)
- {
- $thumburl=str_replace('dailymotion.com/video/','dailymotion.com/thumbnail/video/',$url);
- return array('src'=>$thumburl,
- 'href'=>$href,'width'=>'120','style'=>'height:auto;','alt'=>'DailyMotion thumbnail');
- }
- }
- if (endsWith($domain,'.imageshack.us'))
- {
- $ext=strtolower(pathinfo($url,PATHINFO_EXTENSION));
- if ($ext=='jpg' || $ext=='jpeg' || $ext=='png' || $ext=='gif')
- {
- $thumburl = substr($url,0,strlen($url)-strlen($ext)).'th.'.$ext;
- return array('src'=>$thumburl,
- 'href'=>$href,'width'=>'120','style'=>'height:auto;','alt'=>'imageshack.us thumbnail');
- }
- }
- // Some other hosts are SLOW AS HELL and usually require an extra HTTP request to get the thumbnail URL.
- // So we deport the thumbnail generation in order not to slow down page generation
- // (and we also cache the thumbnail)
- if (!$GLOBALS['config']['ENABLE_LOCALCACHE']) return array(); // If local cache is disabled, no thumbnails for services which require the use a local cache.
- if ($domain=='flickr.com' || endsWith($domain,'.flickr.com')
- || $domain=='vimeo.com'
- || $domain=='ted.com' || endsWith($domain,'.ted.com')
- || $domain=='xkcd.com' || endsWith($domain,'.xkcd.com')
- )
- {
- if ($domain=='vimeo.com')
- { // Make sure this vimeo URL points to a video (/xxx... where xxx is numeric)
- $path = parse_url($url,PHP_URL_PATH);
- if (!preg_match('!/\d+.+?!',$path)) return array(); // This is not a single video URL.
- }
- if ($domain=='xkcd.com' || endsWith($domain,'.xkcd.com'))
- { // Make sure this URL points to a single comic (/xxx... where xxx is numeric)
- $path = parse_url($url,PHP_URL_PATH);
- if (!preg_match('!/\d+.+?!',$path)) return array();
- }
- if ($domain=='ted.com' || endsWith($domain,'.ted.com'))
- { // Make sure this TED URL points to a video (/talks/...)
- $path = parse_url($url,PHP_URL_PATH);
- if ("/talks/" !== substr($path,0,7)) return array(); // This is not a single video URL.
- }
- $sign = hash_hmac('sha256', $url, $GLOBALS['salt']); // We use the salt to sign data (it's random, secret, and specific to each installation)
- return array('src'=>indexUrl().'?do=genthumbnail&hmac='.htmlspecialchars($sign).'&url='.urlencode($url),
- 'href'=>$href,'width'=>'120','style'=>'height:auto;','alt'=>'thumbnail');
- }
- // For all other, we try to make a thumbnail of links ending with .jpg/jpeg/png/gif
- // Technically speaking, we should download ALL links and check their Content-Type to see if they are images.
- // But using the extension will do.
- $ext=strtolower(pathinfo($url,PATHINFO_EXTENSION));
- if ($ext=='jpg' || $ext=='jpeg' || $ext=='png' || $ext=='gif')
- {
- $sign = hash_hmac('sha256', $url, $GLOBALS['salt']); // We use the salt to sign data (it's random, secret, and specific to each installation)
- return array('src'=>indexUrl().'?do=genthumbnail&hmac='.htmlspecialchars($sign).'&url='.urlencode($url),
- 'href'=>$href,'width'=>'120','style'=>'height:auto;','alt'=>'thumbnail');
- }
- return array(); // No thumbnail.
- }
- // Returns the HTML code to display a thumbnail for a link
- // with a link to the original URL.
- // Understands various services (youtube.com...)
- // Input: $url = URL for which the thumbnail must be found.
- // $href = if provided, this URL will be followed instead of $url
- // Returns '' if no thumbnail available.
- function thumbnail($url,$href=false)
- {
- $t = computeThumbnail($url,$href);
- if (count($t)==0) return ''; // Empty array = no thumbnail for this URL.
- $html='<a href="'.htmlspecialchars($t['href']).'"><img src="'.htmlspecialchars($t['src']).'"';
- if (!empty($t['width'])) $html.=' width="'.htmlspecialchars($t['width']).'"';
- if (!empty($t['height'])) $html.=' height="'.htmlspecialchars($t['height']).'"';
- if (!empty($t['style'])) $html.=' style="'.htmlspecialchars($t['style']).'"';
- if (!empty($t['alt'])) $html.=' alt="'.htmlspecialchars($t['alt']).'"';
- $html.='></a>';
- return $html;
- }
- // Returns the HTML code to display a thumbnail for a link
- // for the picture wall (using lazy image loading)
- // Understands various services (youtube.com...)
- // Input: $url = URL for which the thumbnail must be found.
- // $href = if provided, this URL will be followed instead of $url
- // Returns '' if no thumbnail available.
- function lazyThumbnail($url,$href=false)
- {
- $t = computeThumbnail($url,$href);
- if (count($t)==0) return ''; // Empty array = no thumbnail for this URL.
- $html='<a href="'.htmlspecialchars($t['href']).'">';
- // Lazy image (only loaded by JavaScript when in the viewport).
- if (!empty($GLOBALS['disablejquery'])) // (except if jQuery is disabled)
- $html.='<img class="lazyimage" src="'.htmlspecialchars($t['src']).'"';
- else
- $html.='<img class="lazyimage" src="#" data-original="'.htmlspecialchars($t['src']).'"';
- if (!empty($t['width'])) $html.=' width="'.htmlspecialchars($t['width']).'"';
- if (!empty($t['height'])) $html.=' height="'.htmlspecialchars($t['height']).'"';
- if (!empty($t['style'])) $html.=' style="'.htmlspecialchars($t['style']).'"';
- if (!empty($t['alt'])) $html.=' alt="'.htmlspecialchars($t['alt']).'"';
- $html.='>';
- // No-JavaScript fallback.
- $html.='<noscript><img src="'.htmlspecialchars($t['src']).'"';
- if (!empty($t['width'])) $html.=' width="'.htmlspecialchars($t['width']).'"';
- if (!empty($t['height'])) $html.=' height="'.htmlspecialchars($t['height']).'"';
- if (!empty($t['style'])) $html.=' style="'.htmlspecialchars($t['style']).'"';
- if (!empty($t['alt'])) $html.=' alt="'.htmlspecialchars($t['alt']).'"';
- $html.='></noscript></a>';
- return $html;
- }
- // -----------------------------------------------------------------------------------------------
- // Installation
- // This function should NEVER be called if the file data/config.php exists.
- function install()
- {
- // On free.fr host, make sure the /sessions directory exists, otherwise login will not work.
- if (endsWith($_SERVER['HTTP_HOST'],'.free.fr') && !is_dir($_SERVER['DOCUMENT_ROOT'].'/sessions')) mkdir($_SERVER['DOCUMENT_ROOT'].'/sessions',0705);
- // This part makes sure sessions works correctly.
- // (Because on some hosts, session.save_path may not be set correctly,
- // or we may not have write access to it.)
- if (isset($_GET['test_session']) && ( !isset($_SESSION) || !isset($_SESSION['session_tested']) || $_SESSION['session_tested']!='Working'))
- { // Step 2: Check if data in session is correct.
- echo '<pre>Sessions do not seem to work correctly on your server.<br>';
- echo 'Make sure the variable session.save_path is set correctly in your php config, and that you have write access to it.<br>';
- echo 'It currently points to '.session_save_path().'<br>';
- echo 'Check that the hostname used to access Shaarli contains a dot. On some browsers, accessing your server via a hostname like \'localhost\' or any custom hostname without a dot causes cookie storage to fail. We recommend accessing your server via it\'s IP address or Fully Qualified Domain Name.<br>';
- echo '<br><a href="?">Click to try again.</a></pre>';
- die;
- }
- if (!isset($_SESSION['session_tested']))
- { // Step 1 : Try to store data in session and reload page.
- $_SESSION['session_tested'] = 'Working'; // Try to set a variable in session.
- header('Location: '.indexUrl().'?test_session'); // Redirect to check stored data.
- }
- if (isset($_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($_POST['city']))
- if (isTZvalid($_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 '.htmlspecialchars(indexUrl()) : $_POST['title'] );
- writeConfig();
- echo '<script language="JavaScript">alert("Shaarli is now configured. Please enter your login/password and start shaaring your links!");document.location=\'?do=login\';</script>';
- exit;
- }
- // Display config form:
- list($timezone_form,$timezone_js) = templateTZform();
- $timezone_html=''; if ($timezone_form!='') $timezone_html='<tr><td valign="top"><b>Timezone:</b></td><td>'.$timezone_form.'</td></tr>';
- $PAGE = new pageBuilder;
- $PAGE->assign('timezone_html',$timezone_html);
- $PAGE->assign('timezone_js',$timezone_js);
- $PAGE->renderPage('install');
- exit;
- }
- // Generates the timezone selection form and JavaScript.
- // Input: (optional) current timezone (can be 'UTC/UTC'). It will be pre-selected.
- // Output: array(html,js)
- // Example: list($htmlform,$js) = templateTZform('Europe/Paris'); // Europe/Paris pre-selected.
- // Returns array('','') if server does not support timezones list. (e.g. PHP 5.1 on free.fr)
- function templateTZform($ptz=false)
- {
- if (function_exists('timezone_identifiers_list')) // because of old PHP version (5.1) which can be found on free.fr
- {
- // Try to split the provided timezone.
- if ($ptz==false) { $l=timezone_identifiers_list(); $ptz=$l[0]; }
- $spos=strpos($ptz,'/'); $pcontinent=substr($ptz,0,$spos); $pcity=substr($ptz,$spos+1);
- // Display config form:
- $timezone_form = '';
- $timezone_js = '';
- // The list is in the form "Europe/Paris", "America/Argentina/Buenos_Aires"...
- // We split the list in continents/cities.
- $continents = array();
- $cities = array();
- foreach(timezone_identifiers_list() as $tz)
- {
- if ($tz=='UTC') $tz='UTC/UTC';
- $spos = strpos($tz,'/');
- if ($spos!==false)
- {
- $continent=substr($tz,0,$spos); $city=substr($tz,$spos+1);
- $continents[$continent]=1;
- if (!isset($cities[$continent])) $cities[$continent]='';
- $cities[$continent].='<option value="'.$city.'"'.($pcity==$city?' selected':'').'>'.$city.'</option>';
- }
- }
- $continents_html = '';
- $continents = array_keys($continents);
- foreach($continents as $continent)
- $continents_html.='<option value="'.$continent.'"'.($pcontinent==$continent?' selected':'').'>'.$continent.'</option>';
- $cities_html = $cities[$pcontinent];
- $timezone_form = "Continent: <select name=\"continent\" id=\"continent\" onChange=\"onChangecontinent();\">${continents_html}</select>";
- $timezone_form .= " City: <select name=\"city\" id=\"city\">${cities[$pcontinent]}</select><br />";
- $timezone_js = "<script language=\"JavaScript\">";
- $timezone_js .= "function onChangecontinent(){document.getElementById(\"city\").innerHTML = citiescontinent[document.getElementById(\"continent\").value];}";
- $timezone_js .= "var citiescontinent = ".json_encode($cities).";" ;
- $timezone_js .= "</script>" ;
- return array($timezone_form,$timezone_js);
- }
- return array('','');
- }
- // Tells if a timezone is valid or not.
- // If not valid, returns false.
- // If system does not support timezone list, returns false.
- function isTZvalid($continent,$city)
- {
- $tz = $continent.'/'.$city;
- if (function_exists('timezone_identifiers_list')) // because of old PHP version (5.1) which can be found on free.fr
- {
- if (in_array($tz, timezone_identifiers_list())) // it's a valid timezone?
- return true;
- }
- return false;
- }
- if (!function_exists('json_encode')) {
- function json_encode($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(',', $output_associative) . '}';
- }
- default:
- return ''; // Not supported
- }
- }
- }
- // Webservices (for use with jQuery/jQueryUI)
- // e.g. index.php?ws=tags&term=minecr
- function processWS()
- {
- if (empty($_GET['ws']) || empty($_GET['term'])) return;
- $term = $_GET['term'];
- $LINKSDB=new linkdb(isLoggedIn() || $GLOBALS['config']['OPEN_SHAARLI']); // Read links from database (and filter private links if used it not logged in).
- header('Content-Type: application/json; charset=utf-8');
- // Search in tags (case insensitive, cumulative search)
- if ($_GET['ws']=='tags')
- {
- $tags=explode(' ',str_replace(',',' ',$term)); $last = array_pop($tags); // Get the last term ("a b c d" ==> "a b c", "d")
- $addtags=''; if ($tags) $addtags=implode(' ',$tags).' '; // We will pre-pend previous tags
- $suggested=array();
- /* To speed up things, we store list of tags in session */
- if (empty($_SESSION['tags'])) $_SESSION['tags'] = $LINKSDB->allTags();
- foreach($_SESSION['tags'] as $key=>$value)
- {
- if (startsWith($key,$last,$case=false) && !in_array($key,$tags)) $suggested[$addtags.$key.' ']=0;
- }
- echo json_encode(array_keys($suggested));
- exit;
- }
- // Search a single tag (case sensitive, single tag search)
- if ($_GET['ws']=='singletag')
- {
- /* To speed up things, we store list of tags in session */
- if (empty($_SESSION['tags'])) $_SESSION['tags'] = $LINKSDB->allTags();
- foreach($_SESSION['tags'] as $key=>$value)
- {
- if (startsWith($key,$term,$case=true)) $suggested[$key]=0;
- }
- echo json_encode(array_keys($suggested));
- exit;
- }
- }
- // Re-write configuration file according to globals.
- // Requires some $GLOBALS to be set (login,hash,salt,title).
- // If the config file cannot be saved, an error message is displayed and the user is redirected to "Tools" menu.
- // (otherwise, the function simply returns.)
- function writeConfig()
- {
- if (is_file($GLOBALS['config']['CONFIG_FILE']) && !isLoggedIn()) die('You are not authorized to alter config.'); // Only logged in user can alter config.
- $config='<?php $GLOBALS[\'login\']='.var_export($GLOBALS['login'],true).'; $GLOBALS[\'hash\']='.var_export($GLOBALS['hash'],true).'; $GLOBALS[\'salt\']='.var_export($GLOBALS['salt'],true).'; ';
- $config .='$GLOBALS[\'timezone\']='.var_export($GLOBALS['timezone'],true).'; date_default_timezone_set('.var_export($GLOBALS['timezone'],true).'); $GLOBALS[\'title\']='.var_export($GLOBALS['title'],true).';';
- $config .= '$GLOBALS[\'titleLink\']='.var_export($GLOBALS['titleLink'],true).'; ';
- $config .= '$GLOBALS[\'redirector\']='.var_export($GLOBALS['redirector'],true).'; ';
- $config .= '$GLOBALS[\'disablesessionprotection\']='.var_export($GLOBALS['disablesessionprotection'],true).'; ';
- $config .= '$GLOBALS[\'disablejquery\']='.var_export($GLOBALS['disablejquery'],true).'; ';
- $config .= '$GLOBALS[\'privateLinkByDefault\']='.var_export($GLOBALS['privateLinkByDefault'],true).'; ';
- $config .= ' ?>';
- if (!file_put_contents($GLOBALS['config']['CONFIG_FILE'],$config) || strcmp(file_get_contents($GLOBALS['config']['CONFIG_FILE']),$config)!=0)
- {
- echo '<script language="JavaScript">alert("Shaarli could not create the config file. Please make sure Shaarli has the right to write in the folder is it installed in.");document.location=\'?\';</script>';
- exit;
- }
- }
- /* Because some f*cking services like flickr require an extra HTTP request to get the thumbnail URL,
- I have deported the thumbnail URL code generation here, otherwise this would slow down page generation.
- The following function takes the URL a link (e.g. a flickr page) and return the proper thumbnail.
- This function is called by passing the URL:
- http://mywebsite.com/shaarli/?do=genthumbnail&hmac=[HMAC]&url=[URL]
- [URL] is the URL of the link (e.g. a flickr page)
- [HMAC] is the signature for the [URL] (so that these URL cannot be forged).
- The function below will fetch the image from the webservice and store it in the cache.
- */
- 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)
- {
- list($httpstatus,$headers,$data) = getHTTP($url,20); // Get the flickr html page.
- if (strpos($httpstatus,'200 OK')!==false)
- {
- // flickr now nicely provides the URL of the thumbnail in each flickr page.
- preg_match('!<link rel=\"image_src\" href=\"(.+?)\"!',$data,$matches);
- if (!empty($matches[1])) $imageurl=$matches[1];
- // In albums (and some other pages), the link rel="image_src" is not provided,
- // but flickr provides:
- // <meta property="og:image" content="http://farm4.staticflickr.com/3398/3239339068_25d13535ff_z.jpg" />
- if ($imageurl=='')
- {
- preg_match('!<meta property=\"og:image\" content=\"(.+?)\"!',$data,$matches);
- if (!empty($matches[1])) $imageurl=$matches[1];
- }
- }
- }
- if ($imageurl!='')
- { // Let's download the image.
- list($httpstatus,$headers,$data) = getHTTP($imageurl,10); // Image is 240x120, so 10 seconds to download should be enough.
- if (strpos($httpstatus,'200 OK')!==false)
- {
- file_put_contents($GLOBALS['config']['CACHEDIR'].'/'.$thumbname,$data); // Save image to cache.
- header('Content-Type: image/jpeg');
- echo $data;
- return;
- }
- }
- }
- elseif ($domain=='vimeo.com' )
- {
- // This is more complex: we have to perform a HTTP request, then parse the result.
- // Maybe we should deport this to JavaScript ? Example: http://stackoverflow.com/questions/1361149/get-img-thumbnails-from-vimeo/4285098#4285098
- $vid = substr(parse_url($url,PHP_URL_PATH),1);
- list($httpstatus,$headers,$data) = getHTTP('https://vimeo.com/api/v2/video/'.htmlspecialchars($vid).'.php',5);
- if (strpos($httpstatus,'200 OK')!==false)
- {
- $t = unserialize($data);
- $imageurl = $t[0]['thumbnail_medium'];
- // Then we download the image and serve it to our client.
- list($httpstatus,$headers,$data) = getHTTP($imageurl,10);
- if (strpos($httpstatus,'200 OK')!==false)
- {
- file_put_contents($GLOBALS['config']['CACHEDIR'].'/'.$thumbname,$data); // Save image to cache.
- header('Content-Type: image/jpeg');
- echo $data;
- return;
- }
- }
- }
- elseif ($domain=='ted.com' || endsWith($domain,'.ted.com'))
- {
- // The thumbnail for TED talks is located in the <link rel="image_src" [...]> tag on that page
- // http://www.ted.com/talks/mikko_hypponen_fighting_viruses_defending_the_net.html
- // <link rel="image_src" href="http://images.ted.com/images/ted/28bced335898ba54d4441809c5b1112ffaf36781_389x292.jpg" />
- list($httpstatus,$headers,$data) = getHTTP($url,5);
- if (strpos($httpstatus,'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];
- list($httpstatus,$headers,$data) = getHTTP($imageurl,20); // No control on image size, so wait long enough.
- if (strpos($httpstatus,'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($domain,'.xkcd.com'))
- {
- // There is no thumbnail available for xkcd comics, so download the whole image and resize it.
- // http://xkcd.com/327/
- // <img src="http://imgs.xkcd.com/comics/exploits_of_a_mom.png" title="<BLABLA>" alt="<BLABLA>" />
- list($httpstatus,$headers,$data) = getHTTP($url,5);
- if (strpos($httpstatus,'200 OK')!==false)
- {
- // Extract the link to the thumbnail
- preg_match('!<img src="(http://imgs.xkcd.com/comics/.*)" title="[^s]!',$data,$matches);
- if (!empty($matches[1]))
- { // Let's download the image.
- $imageurl=$matches[1];
- list($httpstatus,$headers,$data) = getHTTP($imageurl,20); // No control on image size, so wait long enough.
- if (strpos($httpstatus,'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($filepath);
- return;
- }
- }
- }
- }
- }
- else
- {
- // For all other domains, we try to download the image and make a thumbnail.
- list($httpstatus,$headers,$data) = getHTTP($url,30); // We allow 30 seconds max to download (and downloads are limited to 4 Mb)
- if (strpos($httpstatus,'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;
- }
- }
- }
- // Otherwise, return an empty image (8x8 transparent gif)
- $blankgif = base64_decode('R0lGODlhCAAIAIAAAP///////yH5BAEKAAEALAAAAAAIAAgAAAIHjI+py+1dAAA7');
- file_put_contents($GLOBALS['config']['CACHEDIR'].'/'.$blankname,$blankgif); // Also put something in cache so that this URL is not requested twice.
- header('Content-Type: image/gif');
- echo $blankgif;
- }
- // Make a thumbnail of the image (to width: 120 pixels)
- // Returns true if success, false otherwise.
- function resizeImage($filepath)
- {
- if (!function_exists('imagecreatefromjpeg')) return false; // GD not present: no thumbnail possible.
- // Trick: some stupid people rename GIF as JPEG... or else.
- // So we really try to open each image type whatever the extension is.
- $header=file_get_contents($filepath,false,NULL,0,256); // Read first 256 bytes and try to sniff file type.
- $im=false;
- $i=strpos($header,'GIF8'); if (($i!==false) && ($i==0)) $im = imagecreatefromgif($filepath); // Well this is crude, but it should be enough.
- $i=strpos($header,'PNG'); if (($i!==false) && ($i==1)) $im = imagecreatefrompng($filepath);
- $i=strpos($header,'JFIF'); if ($i!==false) $im = imagecreatefromjpeg($filepath);
- if (!$im) return false; // Unable to open image (corrupted or not an image)
- $w = imagesx($im);
- $h = imagesy($im);
- $ystart = 0; $yheight=$h;
- if ($h>$w) { $ystart= ($h/2)-($w/2); $yheight=$w/2; }
- $nw = 120; // Desired width
- $nh = min(floor(($h*$nw)/$w),120); // Compute new width/height, but maximum 120 pixels height.
- // Resize image:
- $im2 = imagecreatetruecolor($nw,$nh);
- imagecopyresampled($im2, $im, 0, 0, 0, $ystart, $nw, $nh, $w, $yheight);
- imageinterlace($im2,true); // For progressive JPEG.
- $tempname=$filepath.'_TEMP.jpg';
- imagejpeg($im2, $tempname, 90);
- imagedestroy($im);
- imagedestroy($im2);
- unlink($filepath);
- rename($tempname,$filepath); // Overwrite original picture with thumbnail.
- return true;
- }
- // Invalidate caches when the database is changed or the user logs out.
- // (e.g. tags cache).
- function invalidateCaches()
- {
- unset($_SESSION['tags']); // Purge cache attached to session.
- pageCache::purgeCache(); // Purge page cache shared by sessions.
- }
- if (isset($_SERVER["QUERY_STRING"]) && startswith($_SERVER["QUERY_STRING"],'do=genthumbnail')) { genThumbnail(); exit; } // Thumbnail generation/cache does not need the link database.
- if (isset($_SERVER["QUERY_STRING"]) && startswith($_SERVER["QUERY_STRING"],'do=rss')) { showRSS(); exit; }
- if (isset($_SERVER["QUERY_STRING"]) && startswith($_SERVER["QUERY_STRING"],'do=atom')) { showATOM(); exit; }
- if (isset($_SERVER["QUERY_STRING"]) && startswith($_SERVER["QUERY_STRING"],'do=dailyrss')) { showDailyRSS(); exit; }
- if (isset($_SERVER["QUERY_STRING"]) && startswith($_SERVER["QUERY_STRING"],'do=daily')) { showDaily(); exit; }
- if (isset($_SERVER["QUERY_STRING"]) && startswith($_SERVER["QUERY_STRING"],'ws=')) { processWS(); exit; } // Webservices (for jQuery/jQueryUI)
- if (!isset($_SESSION['LINKS_PER_PAGE'])) $_SESSION['LINKS_PER_PAGE']=$GLOBALS['config']['LINKS_PER_PAGE'];
- renderPage();
- ?>
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