X-Git-Url: https://git.immae.eu/?a=blobdiff_plain;f=index.php;h=f7e73bde956c161d043d627361b92d7ca6eed519;hb=refs%2Fpull%2F665%2Fhead;hp=afe2d039a37e6a8e9fa551a4ec7980173e140d33;hpb=3e0ef647a370f98aa638a7163730d4a7ffdfed5c;p=github%2Fshaarli%2FShaarli.git diff --git a/index.php b/index.php index afe2d039..f7e73bde 100644 --- a/index.php +++ b/index.php @@ -1,66 +1,136 @@ '); // Suffix to encapsulate data in php code. +/** + * Shaarli v0.8.0 - Shaare your links... + * + * The personal, minimalist, super-fast, database free, bookmarking service. + * + * Friendly fork by the Shaarli community: + * - https://github.com/shaarli/Shaarli + * + * Original project by sebsauvage.net: + * - http://sebsauvage.net/wiki/doku.php?id=php:shaarli + * - https://github.com/sebsauvage/Shaarli + * + * Licence: http://www.opensource.org/licenses/zlib-license.php + * + * Requires: PHP 5.3.x + */ + +// Set 'UTC' as the default timezone if it is not defined in php.ini +// See http://php.net/manual/en/datetime.configuration.php#ini.date.timezone +if (date_default_timezone_get() == '') { + date_default_timezone_set('UTC'); +} -// 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); // Set default cookie expiration and path. +/* + * PHP configuration + */ +define('shaarli_version', '0.8.0'); -// 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 to use sessionID in URL if cookies are disabled. -session_name('shaarli'); -if (session_id() == '') session_start(); // Start session if needed (Some server auto-start sessions). +// http://server.com/x/shaarli --> /shaarli/ +define('WEB_PATH', substr($_SERVER['REQUEST_URI'], 0, 1+strrpos($_SERVER['REQUEST_URI'], '/', 0))); + +// High execution time in case of problematic imports/exports. +ini_set('max_input_time','60'); -// 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). +// Try to set max upload file size and read +ini_set('memory_limit', '128M'); ini_set('post_max_size', '16M'); ini_set('upload_max_filesize', '16M'); -checkphpversion(); -error_reporting(E_ALL^E_WARNING); // See all error except warnings. -//error_reporting(-1); // See all errors (for debugging only) -include "inc/rain.tpl.class.php"; //include Rain TPL -raintpl::$tpl_dir = "tpl/"; // template directory -if (!is_dir('tmp')) { mkdir('tmp',0705); chmod('tmp',0705); } -raintpl::$cache_dir = "tmp/"; // cache directory +// See all error except warnings +error_reporting(E_ALL^E_WARNING); +// See all errors (for debugging only) +//error_reporting(-1); + + +// 3rd-party libraries +if (! file_exists(__DIR__ . '/vendor/autoload.php')) { + header('Content-Type: text/plain; charset=utf-8'); + echo "Error: missing Composer configuration\n\n" + ."If you installed Shaarli through Git or using the development branch,\n" + ."please refer to the installation documentation to install PHP" + ." dependencies using Composer:\n" + ."- https://github.com/shaarli/Shaarli/wiki/Server-requirements\n" + ."- https://github.com/shaarli/Shaarli/wiki/Download-and-Installation"; + exit; +} +require_once 'inc/rain.tpl.class.php'; +require_once __DIR__ . '/vendor/autoload.php'; + +// Shaarli library +require_once 'application/ApplicationUtils.php'; +require_once 'application/Cache.php'; +require_once 'application/CachedPage.php'; +require_once 'application/config/ConfigManager.php'; +require_once 'application/config/ConfigPlugin.php'; +require_once 'application/FeedBuilder.php'; +require_once 'application/FileUtils.php'; +require_once 'application/HttpUtils.php'; +require_once 'application/Languages.php'; +require_once 'application/LinkDB.php'; +require_once 'application/LinkFilter.php'; +require_once 'application/LinkUtils.php'; +require_once 'application/NetscapeBookmarkUtils.php'; +require_once 'application/PageBuilder.php'; +require_once 'application/TimeZone.php'; +require_once 'application/Url.php'; +require_once 'application/Utils.php'; +require_once 'application/PluginManager.php'; +require_once 'application/Router.php'; +require_once 'application/Updater.php'; + +// Ensure the PHP version is supported +try { + ApplicationUtils::checkPHPVersion('5.3', PHP_VERSION); +} catch(Exception $exc) { + header('Content-Type: text/plain; charset=utf-8'); + echo $exc->getMessage(); + exit; +} -ob_start(); // Output buffering for the page cache. +// Force cookie path (but do not change lifetime) +$cookie = session_get_cookie_params(); +$cookiedir = ''; +if (dirname($_SERVER['SCRIPT_NAME']) != '/') { + $cookiedir = dirname($_SERVER["SCRIPT_NAME"]).'/'; +} +// Set default cookie expiration and path. +session_set_cookie_params($cookie['lifetime'], $cookiedir, $_SERVER['SERVER_NAME']); +// Set session parameters on server side. +// If the user does not access any page within this time, his/her session is considered expired. +define('INACTIVITY_TIMEOUT', 3600); // in seconds. +// Use cookies to store session. +ini_set('session.use_cookies', 1); +// Force cookies for session (phpsessionID forbidden in URL). +ini_set('session.use_only_cookies', 1); +// Prevent PHP form using sessionID in URL if cookies are disabled. +ini_set('session.use_trans_sid', false); + +session_name('shaarli'); +// Start session if needed (Some server auto-start sessions). +if (session_id() == '') { + session_start(); +} + +// Regenerate session ID if invalid or not defined in cookie. +if (isset($_COOKIE['shaarli']) && !is_session_id_valid($_COOKIE['shaarli'])) { + session_regenerate_id(true); + $_COOKIE['shaarli'] = session_id(); +} + +$conf = new ConfigManager(); +$conf->setEmpty('general.timezone', date_default_timezone_get()); +$conf->setEmpty('general.title', 'Shared links on '. escape(index_url($_SERVER))); +RainTPL::$tpl_dir = $conf->get('resource.raintpl_tpl'); // template directory +RainTPL::$cache_dir = $conf->get('resource.raintpl_tmp'); // cache directory +$pluginManager = new PluginManager($conf); +$pluginManager->load($conf->get('general.enabled_plugins')); + +date_default_timezone_set($conf->get('general.timezone', 'UTC')); + +ob_start(); // Output buffering for the page cache. // In case stupid admin has left magic_quotes enabled in php.ini: if (get_magic_quotes_gpc()) @@ -77,196 +147,102 @@ header("Cache-Control: no-store, no-cache, must-revalidate"); header("Cache-Control: post-check=0, pre-check=0", false); header("Pragma: no-cache"); -// Directories creations (Note that your web host may require differents rights than 705.) -if (!is_dir($GLOBALS['config']['DATADIR'])) { mkdir($GLOBALS['config']['DATADIR'],0705); chmod($GLOBALS['config']['DATADIR'],0705); } -if (!is_dir('tmp')) { mkdir('tmp',0705); chmod('tmp',0705); } // For RainTPL temporary files. -if (!is_file($GLOBALS['config']['DATADIR'].'/.htaccess')) { file_put_contents($GLOBALS['config']['DATADIR'].'/.htaccess',"Allow from none\nDeny from all\n"); } // Protect data files. -if ($GLOBALS['config']['ENABLE_LOCALCACHE']) -{ - if (!is_dir($GLOBALS['config']['CACHEDIR'])) { mkdir($GLOBALS['config']['CACHEDIR'],0705); chmod($GLOBALS['config']['CACHEDIR'],0705); } - if (!is_file($GLOBALS['config']['CACHEDIR'].'/.htaccess')) { file_put_contents($GLOBALS['config']['CACHEDIR'].'/.htaccess',"Allow from none\nDeny from all\n"); } // Protect data files. -} - -// Run config screen if first run: -if (!is_file($GLOBALS['config']['CONFIG_FILE'])) install(); - -require $GLOBALS['config']['CONFIG_FILE']; // Read login/password hash into $GLOBALS. +if (! is_file($conf->getConfigFileExt())) { + // Ensure Shaarli has proper access to its resources + $errors = ApplicationUtils::checkResourcePermissions($conf); -// Handling of old config file which do not have the new parameters. -if (empty($GLOBALS['title'])) $GLOBALS['title']='Shared links on '.htmlspecialchars(indexUrl()); -if (empty($GLOBALS['timezone'])) $GLOBALS['timezone']=date_default_timezone_get(); -if (empty($GLOBALS['disablesessionprotection'])) $GLOBALS['disablesessionprotection']=false; + if ($errors != array()) { + $message = '

Insufficient permissions:

'; -// 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.'; + header('Content-Type: text/html; charset=utf-8'); + echo $message; exit; } -} - -// Checks if an update is available for Shaarli. -// (at most once a day, and only for registered user.) -// Output: '' = no new version. -// other= the available version. -function checkUpdate() -{ - if (!isLoggedIn()) return ''; // Do not check versions for visitors. - - // Get latest version number at most once a day. - if (!is_file($GLOBALS['config']['UPDATECHECK_FILENAME']) || (filemtime($GLOBALS['config']['UPDATECHECK_FILENAME'])url = $url; - $this->filename = $GLOBALS['config']['PAGECACHE'].'/'.sha1($url).'.cache'; - $this->shouldBeCached = $shouldBeCached; - } - - // If the page should be cached and a cached version exists, - // returns the cached version (otherwise, return null). - public function cachedVersion() - { - if (!$this->shouldBeCached) return null; - if (is_file($this->filename)) { return file_get_contents($this->filename); exit; } - return null; - } - - // Put a page in the cache. - public function cache($page) - { - if (!$this->shouldBeCached) return; - if (!is_dir($GLOBALS['config']['PAGECACHE'])) { mkdir($GLOBALS['config']['PAGECACHE'],0705); chmod($GLOBALS['config']['PAGECACHE'],0705); } - file_put_contents($this->filename,$page); - } - - // Purge the whole cache. - // (call with pageCache::purgeCache()) - public static function purgeCache() - { - if (is_dir($GLOBALS['config']['PAGECACHE'])) - { - $handler = opendir($GLOBALS['config']['PAGECACHE']); - if ($handler!==false) - { - while (($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',$t,FILE_APPEND); + // Display the installation form if no existing config is found + install($conf); } -// Same as nl2br(), but escapes < and > -function nl2br_escaped($html) -{ - return str_replace('>','>',str_replace('<','<',nl2br($html))); -} +// a token depending of deployment salt, user password, and the current ip +define('STAY_SIGNED_IN_TOKEN', sha1($conf->get('credentials.hash') . $_SERVER['REMOTE_ADDR'] . $conf->get('credentials.salt'))); -/* Returns the small hash of a string - eg. smallHash('20111006_131924') --> yZH23w - Small hashes: - - are unique (well, as unique as crc32, at last) - - are always 6 characters long. - - only use the following characters: a-z A-Z 0-9 - _ @ - - are NOT cryptographically secure (they CAN be forged) - In Shaarli, they are used as a tinyurl-like link to individual entries. -*/ -function smallHash($text) -{ - $t = rtrim(base64_encode(hash('crc32',$text,true)),'='); - $t = str_replace('+','-',$t); // Get rid of characters which need encoding in URLs. - $t = str_replace('/','_',$t); - $t = str_replace('=','@',$t); - return $t; -} - -// In a string, converts urls to clickable links. -// Function inspired from http://www.php.net/manual/en/function.preg-replace.php#85722 -function text2clickable($url) -{ - $redir = empty($GLOBALS['redirector']) ? '' : $GLOBALS['redirector']; - return preg_replace('!(((?:https?|ftp|file)://|apt:|magnet:)\S+[[:alnum:]]/?)!si','$1',$url); +// Sniff browser language and set date format accordingly. +if (isset($_SERVER['HTTP_ACCEPT_LANGUAGE'])) { + autoLocale($_SERVER['HTTP_ACCEPT_LANGUAGE']); } +header('Content-Type: text/html; charset=utf-8'); // We use UTF-8 for proper international characters handling. -// This function inserts   where relevant so that multiple spaces are properly displayed in HTML -// even in the absence of
  (This is used in description to keep text formatting)
-function keepMultipleSpaces($text)
+/**
+ * Checking session state (i.e. is the user still logged in)
+ *
+ * @param ConfigManager $conf The configuration manager.
+ *
+ * @return bool: true if the user is logged in, false otherwise.
+ */
+function setup_login_state($conf)
 {
-    return str_replace('  ','  ',$text);
-    
+	if ($conf->get('security.open_shaarli')) {
+	    return true;
+	}
+	$userIsLoggedIn = false; // By default, we do not consider the user as logged in;
+	$loginFailure = false; // If set to true, every attempt to authenticate the user will fail. This indicates that an important condition isn't met.
+	if (! $conf->exists('credentials.login')) {
+	    $userIsLoggedIn = false;  // Shaarli is not configured yet.
+	    $loginFailure = true;
+	}
+	if (isset($_COOKIE['shaarli_staySignedIn']) &&
+	    $_COOKIE['shaarli_staySignedIn']===STAY_SIGNED_IN_TOKEN &&
+	    !$loginFailure)
+	{
+	    fillSessionInfo($conf);
+	    $userIsLoggedIn = true;
+	}
+	// If session does not exist on server side, or IP address has changed, or session has expired, logout.
+	if (empty($_SESSION['uid'])
+        || ($conf->get('security.session_protection_disabled') == false && $_SESSION['ip'] != allIPs())
+        || time() >= $_SESSION['expires_on'])
+	{
+	    logout();
+	    $userIsLoggedIn = false;
+	    $loginFailure = true;
+	}
+	if (!empty($_SESSION['longlastingsession'])) {
+	    $_SESSION['expires_on']=time()+$_SESSION['longlastingsession']; // In case of "Stay signed in" checked.
+	}
+	else {
+	    $_SESSION['expires_on']=time()+INACTIVITY_TIMEOUT; // Standard session expiration date.
+	}
+	if (!$loginFailure) {
+	    $userIsLoggedIn = true;
+	}
+
+	return $userIsLoggedIn;
 }
-// ------------------------------------------------------------------------------------------
-// Sniff browser language to display dates in the right format automatically.
-// (Note that is may not work on your server if the corresponding local is not installed.)
-function autoLocale()
+$userIsLoggedIn = setup_login_state($conf);
+
+/**
+ * PubSubHubbub protocol support (if enabled)  [UNTESTED]
+ * (Source: http://aldarone.fr/les-flux-rss-shaarli-et-pubsubhubbub/ )
+ *
+ * @param ConfigManager $conf Configuration Manager instance.
+ */
+function pubsubhub($conf)
 {
-    $loc='en_US'; // Default if browser does not send HTTP_ACCEPT_LANGUAGE
-    if (isset($_SERVER['HTTP_ACCEPT_LANGUAGE'])) // eg. "fr,fr-fr;q=0.8,en;q=0.5,en-us;q=0.3"
-    {   // (It's a bit crude, but it works very well. Prefered language is always presented first.)
-        if (preg_match('/([a-z]{2}(-[a-z]{2})?)/i',$_SERVER['HTTP_ACCEPT_LANGUAGE'],$matches)) $loc=$matches[1];
-    }
-    setlocale(LC_TIME,$loc);  // LC_TIME = Set local for date/time format only.
-}
-
-// ------------------------------------------------------------------------------------------
-// PubSubHubbub protocol support (if enabled)  [UNTESTED]
-// (Source: http://aldarone.fr/les-flux-rss-shaarli-et-pubsubhubbub/ )
-if (!empty($GLOBALS['config']['PUBSUBHUB_URL'])) include './publisher.php';
-function pubsubhub()
-{
-    if (!empty($GLOBALS['config']['PUBSUBHUB_URL']))
+    $pshUrl = $conf->get('config.PUBSUBHUB_URL');
+    if (!empty($pshUrl))
     {
-       $p = new Publisher($GLOBALS['config']['PUBSUBHUB_URL']);
-       $topic_url = array (
-                       indexUrl().'?do=atom',
-                       indexUrl().'?do=rss'
-                    );
-       $p->publish_update($topic_url);
+        include_once './publisher.php';
+        $p = new Publisher($pshUrl);
+        $topic_url = array (
+            index_url($_SERVER).'?do=atom',
+            index_url($_SERVER).'?do=rss'
+        );
+        $p->publish_update($topic_url);
     }
 }
 
@@ -276,84 +252,135 @@ function pubsubhub()
 // Returns the IP address of the client (Used to prevent session cookie hijacking.)
 function allIPs()
 {
-    $ip = $_SERVER["REMOTE_ADDR"];
+    $ip = $_SERVER['REMOTE_ADDR'];
     // Then we use more HTTP headers to prevent session hijacking from users behind the same proxy.
     if (isset($_SERVER['HTTP_X_FORWARDED_FOR'])) { $ip=$ip.'_'.$_SERVER['HTTP_X_FORWARDED_FOR']; }
     if (isset($_SERVER['HTTP_CLIENT_IP'])) { $ip=$ip.'_'.$_SERVER['HTTP_CLIENT_IP']; }
     return $ip;
 }
 
-// Check that user/password is correct.
-function check_auth($login,$password)
+/**
+ * Load user session.
+ *
+ * @param ConfigManager $conf Configuration Manager instance.
+ */
+function fillSessionInfo($conf)
 {
-    $hash = sha1($password.$login.$GLOBALS['salt']);
-    if ($login==$GLOBALS['login'] && $hash==$GLOBALS['hash'])
+	$_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']= $conf->get('credentials.login');
+	$_SESSION['expires_on']=time()+INACTIVITY_TIMEOUT;  // Set session expiration.
+}
+
+/**
+ * Check that user/password is correct.
+ *
+ * @param string        $login    Username
+ * @param string        $password User password
+ * @param ConfigManager $conf     Configuration Manager instance.
+ *
+ * @return bool: authentication successful or not.
+ */
+function check_auth($login, $password, $conf)
+{
+    $hash = sha1($password . $login . $conf->get('credentials.salt'));
+    if ($login == $conf->get('credentials.login') && $hash == $conf->get('credentials.hash'))
     {   // Login/password is correct.
-        $_SESSION['uid'] = sha1(uniqid('',true).'_'.mt_rand()); // generate unique random number (different than phpsessionid)
-        $_SESSION['ip']=allIPs();                // We store IP address(es) of the client to make sure session is not hijacked.
-        $_SESSION['username']=$login;
-        $_SESSION['expires_on']=time()+INACTIVITY_TIMEOUT;  // Set session expiration.
-        logm('Login successful');
-        return True;
-    }
-    logm('Login failed for user '.$login);
-    return False;
+		fillSessionInfo($conf);
+        logm($conf->get('resource.log'), $_SERVER['REMOTE_ADDR'], 'Login successful');
+        return true;
+    }
+    logm($conf->get('resource.log'), $_SERVER['REMOTE_ADDR'], 'Login failed for user '.$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 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;
+    global $userIsLoggedIn;
+    return $userIsLoggedIn;
 }
 
 // Force logout.
-function logout() { if (isset($_SESSION)) { unset($_SESSION['uid']); unset($_SESSION['ip']); unset($_SESSION['username']);}  }
+function logout() {
+    if (isset($_SESSION)) {
+        unset($_SESSION['uid']);
+        unset($_SESSION['ip']);
+        unset($_SESSION['username']);
+        unset($_SESSION['privateonly']);
+    }
+    setcookie('shaarli_staySignedIn', FALSE, 0, WEB_PATH);
+}
 
 
 // ------------------------------------------------------------------------------------------
 // Brute force protection system
 // Several consecutive failed logins will ban the IP address for 30 minutes.
-if (!is_file($GLOBALS['config']['IPBANS_FILENAME'])) file_put_contents($GLOBALS['config']['IPBANS_FILENAME'], "array(),'BANS'=>array()),true).";\n?>");
-include $GLOBALS['config']['IPBANS_FILENAME'];
-// Signal a failed login. Will ban the IP if too many failures:
-function ban_loginFailed()
+if (!is_file($conf->get('resource.ban_file', 'data/ipbans.php'))) {
+    // FIXME! globals
+    file_put_contents(
+        $conf->get('resource.ban_file', 'data/ipbans.php'),
+        "array(),'BANS'=>array()),true).";\n?>"
+    );
+}
+include $conf->get('resource.ban_file', 'data/ipbans.php');
+/**
+ * Signal a failed login. Will ban the IP if too many failures:
+ *
+ * @param ConfigManager $conf Configuration Manager instance.
+ */
+function ban_loginFailed($conf)
 {
-    $ip=$_SERVER["REMOTE_ADDR"]; $gb=$GLOBALS['IPBANS'];
-    if (!isset($gb['FAILURES'][$ip])) $gb['FAILURES'][$ip]=0;
+    $ip = $_SERVER['REMOTE_ADDR'];
+    $trusted = $conf->get('security.trusted_proxies', array());
+    if (in_array($ip, $trusted)) {
+        $ip = getIpAddressFromProxy($_SERVER, $trusted);
+        if (!$ip) {
+            return;
+        }
+    }
+    $gb = $GLOBALS['IPBANS'];
+    if (! isset($gb['FAILURES'][$ip])) {
+        $gb['FAILURES'][$ip]=0;
+    }
     $gb['FAILURES'][$ip]++;
-    if ($gb['FAILURES'][$ip]>($GLOBALS['config']['BAN_AFTER']-1))
+    if ($gb['FAILURES'][$ip] > ($conf->get('security.ban_after') - 1))
     {
-        $gb['BANS'][$ip]=time()+$GLOBALS['config']['BAN_DURATION'];
-        logm('IP address banned from login');
+        $gb['BANS'][$ip] = time() + $conf->get('security.ban_after', 1800);
+        logm($conf->get('resource.log'), $_SERVER['REMOTE_ADDR'], 'IP address banned from login');
     }
     $GLOBALS['IPBANS'] = $gb;
-    file_put_contents($GLOBALS['config']['IPBANS_FILENAME'], "");
+    file_put_contents(
+        $conf->get('resource.ban_file', 'data/ipbans.php'),
+        ""
+    );
 }
 
-// Signals a successful login. Resets failed login counter.
-function ban_loginOk()
+/**
+ * Signals a successful login. Resets failed login counter.
+ *
+ * @param ConfigManager $conf Configuration Manager instance.
+ */
+function ban_loginOk($conf)
 {
-    $ip=$_SERVER["REMOTE_ADDR"]; $gb=$GLOBALS['IPBANS'];
+    $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'], "");
+    file_put_contents(
+        $conf->get('resource.ban_file', 'data/ipbans.php'),
+        ""
+    );
 }
 
-// Checks if the user CAN login. If 'true', the user can try to login.
-function ban_canLogin()
+/**
+ * Checks if the user CAN login. If 'true', the user can try to login.
+ *
+ * @param ConfigManager $conf Configuration Manager instance.
+ *
+ * @return bool: true if the user is allowed to login.
+ */
+function ban_canLogin($conf)
 {
     $ip=$_SERVER["REMOTE_ADDR"]; $gb=$GLOBALS['IPBANS'];
     if (isset($gb['BANS'][$ip]))
@@ -361,9 +388,12 @@ function ban_canLogin()
         // 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.');
+            logm($conf->get('resource.log'), $_SERVER['REMOTE_ADDR'], 'Ban lifted.');
             unset($gb['FAILURES'][$ip]); unset($gb['BANS'][$ip]);
-            file_put_contents($GLOBALS['config']['IPBANS_FILENAME'], "");
+            file_put_contents(
+                $conf->get('resource.ban_file', 'data/ipbans.php'),
+                ""
+            );
             return true; // Ban has expired, user can login.
         }
         return false; // User is banned.
@@ -375,40 +405,70 @@ function ban_canLogin()
 // Process login form: Check if login/password is correct.
 if (isset($_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'], $_POST['password'])))
-    {   // Login/password is ok.
-        ban_loginOk();
+    if (!ban_canLogin($conf)) 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'], $conf))
+    ) {   // Login/password is OK.
+        ban_loginOk($conf);
         // 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); // Set session cookie expiration on client side
-            // Note: Never forget the trailing slash on the cookie path !
+            session_set_cookie_params($_SESSION['longlastingsession'],$cookiedir,$_SERVER['SERVER_NAME']); // Set session cookie expiration on client side
+            // Note: Never forget the trailing slash on the cookie path!
             session_regenerate_id(true);  // Send cookie with new expiration date to browser.
         }
         else // Standard session expiration (=when browser closes)
         {
             $cookiedir = ''; if(dirname($_SERVER['SCRIPT_NAME'])!='/') $cookiedir=dirname($_SERVER["SCRIPT_NAME"]).'/';
-            session_set_cookie_params(0,$cookiedir); // 0 means "When browser closes"
+            session_set_cookie_params(0,$cookiedir,$_SERVER['SERVER_NAME']); // 0 means "When browser closes"
             session_regenerate_id(true);
         }
+
         // Optional redirect after login:
-        if (isset($_GET['post'])) { header('Location: ?post='.urlencode($_GET['post']).(!empty($_GET['title'])?'&title='.urlencode($_GET['title']):'').(!empty($_GET['source'])?'&source='.urlencode($_GET['source']):'')); exit; }
-        if (isset($_POST['returnurl']))
-        {
-            if (endsWith($_POST['returnurl'],'?do=login')) { header('Location: ?'); exit; } // Prevent loops over login screen.
-            header('Location: '.$_POST['returnurl']); exit;
+        if (isset($_GET['post'])) {
+            $uri = '?post='. urlencode($_GET['post']);
+            foreach (array('description', 'source', 'title') as $param) {
+                if (!empty($_GET[$param])) {
+                    $uri .= '&'.$param.'='.urlencode($_GET[$param]);
+                }
+            }
+            header('Location: '. $uri);
+            exit;
+        }
+
+        if (isset($_GET['edit_link'])) {
+            header('Location: ?edit_link='. escape($_GET['edit_link']));
+            exit;
+        }
+
+        if (isset($_POST['returnurl'])) {
+            // Prevent loops over login screen.
+            if (strpos($_POST['returnurl'], 'do=login') === false) {
+                header('Location: '. generateLocation($_POST['returnurl'], $_SERVER['HTTP_HOST']));
+                exit;
+            }
         }
         header('Location: ?'); exit;
     }
     else
     {
-        ban_loginFailed();
-        echo ''; // Redirect to login screen.
+        ban_loginFailed($conf);
+        $redir = '&username='. $_POST['login'];
+        if (isset($_GET['post'])) {
+            $redir .= '&post=' . urlencode($_GET['post']);
+            foreach (array('description', 'source', 'title') as $param) {
+                if (!empty($_GET[$param])) {
+                    $redir .= '&' . $param . '=' . urlencode($_GET[$param]);
+                }
+            }
+        }
+        echo ''; // Redirect to login screen.
         exit;
     }
 }
@@ -416,35 +476,7 @@ if (isset($_POST['login']))
 // ------------------------------------------------------------------------------------------
 // Misc utility functions:
 
-// Returns the server URL (including port and http/https), without path.
-// eg. "http://myserver.com:8080"
-// You can append $_SERVER['SCRIPT_NAME'] to get the current script URL.
-function serverUrl()
-{
-    $https = (!empty($_SERVER['HTTPS']) && (strtolower($_SERVER['HTTPS'])=='on')) || $_SERVER["SERVER_PORT"]=='443'; // HTTPS detection.
-    $serverport = ($_SERVER["SERVER_PORT"]=='80' || ($https && $_SERVER["SERVER_PORT"]=='443') ? '' : ':'.$_SERVER["SERVER_PORT"]);
-    return 'http'.($https?'s':'').'://'.$_SERVER["SERVER_NAME"].$serverport;
-}
-
-// Returns the absolute URL of current script, without the query.
-// (eg. http://sebsauvage.net/links/)
-function indexUrl()
-{
-    $scriptname = $_SERVER["SCRIPT_NAME"];
-    // If the script is named 'index.php', we remove it (for better looking URLs,
-    // eg. http://mysite.com/shaarli/?abcde instead of http://mysite.com/shaarli/index.php?abcde)
-    if (endswith($scriptname,'index.php')) $scriptname = substr($scriptname,0,strlen($scriptname)-9);
-    return serverUrl() . $scriptname;
-}
-
-// Returns the absolute URL of current script, WITH the query.
-// (eg. http://sebsauvage.net/links/?toto=titi&spamspamspam=humbug)
-function pageUrl()
-{
-    return indexUrl().(!empty($_SERVER["QUERY_STRING"]) ? '?'.$_SERVER["QUERY_STRING"] : '');
-}
-
-// Convert post_max_size/upload_max_filesize (eg.'16M') parameters to bytes.
+// Convert post_max_size/upload_max_filesize (e.g. '16M') parameters to bytes.
 function return_bytes($val)
 {
     $val = trim($val); $last=strtolower($val[strlen($val)-1]);
@@ -465,658 +497,198 @@ function getMaxFileSize()
     $size2 = return_bytes(ini_get('upload_max_filesize'));
     // Return the smaller of two:
     $maxsize = min($size1,$size2);
-    // FIXME: Then convert back to readable notations ? (eg. 2M instead of 2000000)
+    // 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 local which is not installed on your webserver,
-    // the date will not be displayed in the chosen locale, but probably in US notation.
-}
-
-// Parse HTTP response headers and return an associative array.
-function http_parse_headers_shaarli( $headers )
-{
-    $res=array();
-    foreach($headers as $header)
-    {
-        $i = strpos($header,': ');
-        if ($i!==false)
-        {
-            $key=substr($header,0,$i);
-            $value=substr($header,$i+2,strlen($header)-$i-2);
-            $res[$key]=$value;
-        }
-    }
-    return $res;
-}
-
-/* GET an URL.
-   Input: $url : url to get (http://...)
-          $timeout : Network timeout (will wait this many seconds for an anwser before giving up).
-   Output: An array.  [0] = HTTP status message (eg. "HTTP/1.1 200 OK") or error message
-                      [1] = associative array containing HTTP response headers (eg. echo getHTTP($url)[1]['Content-Type'])
-                      [2] = data
-    Example: list($httpstatus,$headers,$data) = getHTTP('http://sebauvage.net/');
-             if (strpos($httpstatus,'200 OK')!==false)
-                 echo 'Data type: '.htmlspecialchars($headers['Content-Type']);
-             else
-                 echo 'There was an error: '.htmlspecialchars($httpstatus)
-*/
-function getHTTP($url,$timeout=30)
-{
-    try
-    {
-        $options = array('http'=>array('method'=>'GET','timeout' => $timeout)); // Force network timeout
-        $context = stream_context_create($options);
-        $data=file_get_contents($url,false,$context,-1, 4000000); // We download at most 4 Mb from source.
-        if (!$data) { return array('HTTP Error',array(),''); }
-        $httpStatus=$http_response_header[0]; // eg. "HTTP/1.1 200 OK"
-        $responseHeaders=http_parse_headers_shaarli($http_response_header);
-        return array($httpStatus,$responseHeaders,$data);
-    }
-    catch (Exception $e)  // getHTTP *can* fail silentely (we don't care if the title cannot be fetched)
-    {
-        return array($e->getMessage(),'','');
-    }
-}
-
-// Extract title from an HTML document.
-// (Returns an empty string if not found.)
-function html_extract_title($html)
-{
-  return preg_match('!(.*?)!is', $html, $matches) ? trim(str_replace("\n",' ', $matches[1])) : '' ;
-}
-
 // ------------------------------------------------------------------------------------------
 // Token management for XSRF protection
 // Token should be used in any form which acts on data (create,update,delete,import...).
 if (!isset($_SESSION['tokens'])) $_SESSION['tokens']=array();  // Token are attached to the session.
 
-// Returns a token.
-function getToken()
+/**
+ * Returns a token.
+ *
+ * @param ConfigManager $conf Configuration Manager instance.
+ *
+ * @return string token.
+ */
+function getToken($conf)
 {
-    $rnd = sha1(uniqid('',true).'_'.mt_rand().$GLOBALS['salt']);  // We generate a random string.
+    $rnd = sha1(uniqid('', true) .'_'. mt_rand() . $conf->get('credentials.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.
+// 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 true; // Token is OK.
     }
     return false; // Wrong token, or already used.
 }
 
-// ------------------------------------------------------------------------------------------
-/* This class is in charge of building the final page.
-   (This is basically a wrapper around RainTPL which pre-fills some fields.)
-   p = new pageBuilder;
-   p.assign('myfield','myvalue');
-   p.renderPage('mytemplate');
-   
-*/
-class pageBuilder
-{
-    private $tpl; // RainTPL template
-
-    function __construct()
-    {
-        $this->tpl=false;
-    } 
-
-    private function initialize()
-    {    
-        $this->tpl = new RainTPL;    
-        $this->tpl->assign('newversion',checkUpdate());
-        $this->tpl->assign('feedurl',htmlspecialchars(indexUrl()));
-        $searchcrits=''; // Search criteria
-        if (!empty($_GET['searchtags'])) $searchcrits.='&searchtags='.urlencode($_GET['searchtags']);
-        elseif (!empty($_GET['searchterm'])) $searchcrits.='&searchterm='.urlencode($_GET['searchterm']);
-        $this->tpl->assign('searchcrits',$searchcrits);
-        $this->tpl->assign('source',indexUrl());
-        $this->tpl->assign('version',shaarli_version);
-        $this->tpl->assign('scripturl',indexUrl());
-        $this->tpl->assign('pagetitle','Shaarli');
-        $this->tpl->assign('privateonly',!empty($_SESSION['privateonly'])); // Show only private links ?
-        if (!empty($GLOBALS['title'])) $this->tpl->assign('pagetitle',$GLOBALS['title']);
-        if (!empty($GLOBALS['pagetitle'])) $this->tpl->assign('pagetitle',$GLOBALS['pagetitle']);
-        $this->tpl->assign('shaarlititle',empty($GLOBALS['title']) ? 'Shaarli': $GLOBALS['title'] );
-        return;    
-    }
-    
-    // The following assign() method is basically the same as RainTPL (except that it's lazy)
-    public function assign($what,$where)
-    {
-        if ($this->tpl===false) $this->initialize(); // Lazy initialization
-        $this->tpl->assign($what,$where);
-    }
-    
-    // Render a specific page (using a template).
-    // eg. pb.renderPage('picwall')
-    public function renderPage($page)
-    {
-        if ($this->tpl===false) $this->initialize(); // Lazy initialization
-        $this->tpl->draw($page);
-    }
-}
-
-// ------------------------------------------------------------------------------------------
-/* Data storage for links.
-   This object behaves like an associative array.
-   Example:
-      $mylinks = new linkdb();
-      echo $mylinks['20110826_161819']['title'];
-      foreach($mylinks as $link)
-         echo $link['title'].' at url '.$link['url'].' ; description:'.$link['description'];
-   
-   Available keys:
-       title : Title of the link
-       url : URL of the link. Can be absolute or relative. Relative URLs are permalinks (eg.'?m-ukcw')
-       description : description of the entry
-       private : Is this link private ? 0=no, other value=yes
-       linkdate : date of the creation of this entry, in the form YYYYMMDD_HHMMSS (eg.'20110914_192317')
-       tags : tags attached to this entry (separated by spaces)                   
-
-   We implement 3 interfaces:
-     - ArrayAccess so that this object behaves like an associative array.
-     - Iterator so that this object can be used in foreach() loops.
-     - Countable interface so that we can do a count() on this object.
-*/
-class linkdb implements Iterator, Countable, ArrayAccess
-{
-    private $links; // List of links (associative array. Key=linkdate (eg. "20110823_124546"), value= associative array (keys:title,description...)
-    private $urls;  // List of all recorded URLs (key=url, value=linkdate) for fast reserve search (url-->linkdate)
-    private $keys;  // List of linkdate keys (for the Iterator interface implementation)
-    private $position; // Position in the $this->keys array. (for the Iterator interface implementation.)
-    private $loggedin; // Is the used logged in ? (used to filter private links)
-
-    // Constructor:
-    function __construct($isLoggedIn)
-    // Input : $isLoggedIn : is the used logged in ?
-    {
-        $this->loggedin = $isLoggedIn;
-        $this->checkdb(); // Make sure data file exists.
-        $this->readdb();  // Then read it.
-    }
-
-    // ---- Countable interface implementation
-    public function count() { return count($this->links); }
-
-    // ---- ArrayAccess interface implementation
-    public function offsetSet($offset, $value)
-    {
-        if (!$this->loggedin) die('You are not authorized to add a link.');
-        if (empty($value['linkdate']) || empty($value['url'])) die('Internal Error: A link should always have a linkdate and url.');
-        if (empty($offset)) die('You must specify a key.');
-        $this->links[$offset] = $value;
-        $this->urls[$value['url']]=$offset;
-    }
-    public function offsetExists($offset) { return array_key_exists($offset,$this->links); }
-    public function offsetUnset($offset)
-    {
-        if (!$this->loggedin) die('You are not authorized to delete a link.');
-        $url = $this->links[$offset]['url']; unset($this->urls[$url]);
-        unset($this->links[$offset]);
-    }
-    public function offsetGet($offset) { return isset($this->links[$offset]) ? $this->links[$offset] : null; }
-
-    // ---- Iterator interface implementation
-    function rewind() { $this->keys=array_keys($this->links); rsort($this->keys); $this->position=0; } // Start over for iteration, ordered by date (latest first).
-    function key() { return $this->keys[$this->position]; } // current key
-    function current() { return $this->links[$this->keys[$this->position]]; } // current value
-    function next() { ++$this->position; } // go to next item
-    function valid() { return isset($this->keys[$this->position]); }    // Check if current position is valid.
-
-    // ---- Misc methods
-    private function checkdb() // Check if db directory and file exists.
-    {
-        if (!file_exists($GLOBALS['config']['DATASTORE'])) // Create a dummy database for example.
-        {
-             $this->links = array();
-             $link = array('title'=>'Shaarli - sebsauvage.net','url'=>'http://sebsauvage.net/wiki/doku.php?id=php:shaarli','description'=>'Welcome to Shaarli ! This is a bookmark. To edit or delete me, you must first login.','private'=>0,'linkdate'=>'20110914_190000','tags'=>'opensource software');
-             $this->links[$link['linkdate']] = $link;
-             $link = array('title'=>'My secret stuff... - Pastebin.com','url'=>'http://pastebin.com/smCEEeSn','description'=>'SShhhh!!  I\'m a private link only YOU can see. You can delete me too.','private'=>1,'linkdate'=>'20110914_074522','tags'=>'secretstuff');
-             $this->links[$link['linkdate']] = $link;
-             file_put_contents($GLOBALS['config']['DATASTORE'], PHPPREFIX.base64_encode(gzdeflate(serialize($this->links))).PHPSUFFIX); // Write database to disk
-        }
-    }
-
-    // Read database from disk to memory
-    private function readdb()
-    {
-        // Read data
-        $this->links=(file_exists($GLOBALS['config']['DATASTORE']) ? unserialize(gzinflate(base64_decode(substr(file_get_contents($GLOBALS['config']['DATASTORE']),strlen(PHPPREFIX),-strlen(PHPSUFFIX))))) : array() );
-        // Note that gzinflate is faster than gzuncompress. See: http://www.php.net/manual/en/function.gzdeflate.php#96439
-
-        // If user is not logged in, filter private links.
-        if (!$this->loggedin)
-        {
-            $toremove=array();
-            foreach($this->links as $link) { if ($link['private']!=0) $toremove[]=$link['linkdate']; }
-            foreach($toremove as $linkdate) { unset($this->links[$linkdate]); }
-        }
-
-        // Keep the list of the mapping URLs-->linkdate up-to-date.
-        $this->urls=array();
-        foreach($this->links as $link) { $this->urls[$link['url']]=$link['linkdate']; }
-    }
-
-    // Save database from memory to disk.
-    public function savedb()
-    {
-        if (!$this->loggedin) die('You are not authorized to change the database.');
-        file_put_contents($GLOBALS['config']['DATASTORE'], PHPPREFIX.base64_encode(gzdeflate(serialize($this->links))).PHPSUFFIX);
-        invalidateCaches();
-    }
-
-    // Returns the link for a given URL (if it exists). false it does not exist.
-    public function getLinkFromUrl($url)
-    {
-        if (isset($this->urls[$url])) return $this->links[$this->urls[$url]];
-        return false;
-    }
-
-    // Case insentitive search among links (in url, title and description). Returns filtered list of links.
-    // eg. print_r($mydb->filterFulltext('hollandais'));
-    public function filterFulltext($searchterms)
-    {
-        // FIXME: explode(' ',$searchterms) and perform a AND search.
-        // FIXME: accept double-quotes to search for a string "as is" ?
-        $filtered=array();
-        $s = strtolower($searchterms);
-        foreach($this->links as $l)
-        {
-            $found=   (strpos(strtolower($l['title']),$s)!==false)
-                   || (strpos(strtolower($l['description']),$s)!==false)
-                   || (strpos(strtolower($l['url']),$s)!==false)
-                   || (strpos(strtolower($l['tags']),$s)!==false);
-            if ($found) $filtered[$l['linkdate']] = $l;
-        }
-        krsort($filtered);
-        return $filtered;
-    }
-
-    // Filter by tag.
-    // You can specify one or more tags (tags can be separated by space or comma).
-    // eg. print_r($mydb->filterTags('linux programming'));
-    public function filterTags($tags,$casesensitive=false)
-    {
-        $t = str_replace(',',' ',($casesensitive?$tags:strtolower($tags)));
-        $searchtags=explode(' ',$t);
-        $filtered=array();
-        foreach($this->links as $l)
-        {
-            $linktags = explode(' ',($casesensitive?$l['tags']:strtolower($l['tags'])));
-            if (count(array_intersect($linktags,$searchtags)) == count($searchtags))
-                $filtered[$l['linkdate']] = $l;
-        }
-        krsort($filtered);
-        return $filtered;
-    }
-
-    // Filter by day. Day must be in the form 'YYYYMMDD' (eg. '20120125')
-    // Sort order is: older articles first.
-    // eg. print_r($mydb->filterDay('20120125'));
-    public function filterDay($day)
-    {
-        $filtered=array();
-        foreach($this->links as $l)
-        {
-            if (startsWith($l['linkdate'],$day)) $filtered[$l['linkdate']] = $l;
-        }
-        ksort($filtered);
-        return $filtered;
-    }
-    // Filter by smallHash.
-    // Only 1 article is returned.
-    public function filterSmallHash($smallHash)
-    {
-        $filtered=array();
-        foreach($this->links as $l)
-        {
-            if ($smallHash==smallHash($l['linkdate'])) // Yes, this is ugly and slow
-            {
-                $filtered[$l['linkdate']] = $l;
-                return $filtered;
-            }
-        }
-        return $filtered;
-    }
-
-    // Returns the list of all tags
-    // Output: associative array key=tags, value=0
-    public function allTags()
-    {
-        $tags=array();
-        foreach($this->links as $link)
-            foreach(explode(' ',$link['tags']) as $tag)
-                if (!empty($tag)) $tags[$tag]=(empty($tags[$tag]) ? 1 : $tags[$tag]+1);
-        arsort($tags); // Sort tags by usage (most used tag first)
-        return $tags;
-    }
-    
-    // Returns the list of days containing articles (oldest first)
-    // Output: An array containing days (in format YYYYMMDD).
-    public function days()
-    {
-        $linkdays=array();
-        foreach(array_keys($this->links) as $day)
-        {
-            $linkdays[substr($day,0,8)]=0;
-        }
-        $linkdays=array_keys($linkdays);
-        sort($linkdays);
-        return $linkdays;
-    }
-}
-
-// ------------------------------------------------------------------------------------------
-// Ouput the last 50 links in RSS 2.0 format.
-function showRSS()
-{
-    header('Content-Type: application/rss+xml; charset=utf-8');
-
-    // $usepermalink : If true, use permalink instead of final link.
-    // User just has to add 'permalink' in URL parameters. eg. http://mysite.com/shaarli/?do=rss&permalinks
-    $usepermalinks = isset($_GET['permalinks']);
-
+/**
+ * Daily RSS feed: 1 RSS entry per day giving all the links on that day.
+ * Gives the last 7 days (which have links).
+ * This RSS feed cannot be filtered.
+ *
+ * @param ConfigManager $conf Configuration Manager instance.
+ */
+function showDailyRSS($conf) {
     // Cache system
-    $query = $_SERVER["QUERY_STRING"];
-    $cache = new pageCache(pageUrl(),startsWith($query,'do=rss') && !isLoggedIn());
-    $cached = $cache->cachedVersion(); if (!empty($cached)) { echo $cached; exit; }
-
-    // If cached was not found (or not usable), then read the database and build the response:
-    $LINKSDB=new linkdb(isLoggedIn() || $GLOBALS['config']['OPEN_SHAARLI']);  // Read links from database (and filter private links if used it not logged in).
-
-    // Optionnaly filter the results:
-    $linksToDisplay=array();
-    if (!empty($_GET['searchterm'])) $linksToDisplay = $LINKSDB->filterFulltext($_GET['searchterm']);
-    elseif (!empty($_GET['searchtags']))   $linksToDisplay = $LINKSDB->filterTags(trim($_GET['searchtags']));
-    else $linksToDisplay = $LINKSDB;
-
-    $pageaddr=htmlspecialchars(indexUrl());
-    echo '';
-    echo ''.htmlspecialchars($GLOBALS['title']).''.$pageaddr.'';
-    echo 'Shared linksen-en'.$pageaddr.''."\n\n";
-    if (!empty($GLOBALS['config']['PUBSUBHUB_URL']))
-    {
-        echo '';
-        echo '';
-        echo '';
-        echo '';
-    }
-    $i=0;
-    $keys=array(); foreach($linksToDisplay as $key=>$value) { $keys[]=$key; }  // No, I can't use array_keys().
-    while ($i<50 && $i'.htmlspecialchars($link['title']).''.$guid.''.$guid.'';
-        else
-            echo ''.htmlspecialchars($link['title']).''.$guid.''.$absurl.'';
-        if (!$GLOBALS['config']['HIDE_TIMESTAMPS'] || isLoggedIn()) echo ''.htmlspecialchars($rfc822date)."\n";
-        if ($link['tags']!='') // Adding tags to each RSS entry (as mentioned in RSS specification)
-        {
-            foreach(explode(' ',$link['tags']) as $tag) { echo ''.htmlspecialchars($tag).''."\n"; }
-        }
-
-        // Add permalink in description
-        $descriptionlink = '(Permalink)';
-        // If user wants permalinks first, put the final link in description
-        if ($usepermalinks===true) $descriptionlink = '(Link)';
-        if (strlen($link['description'])>0) $descriptionlink = '
'.$descriptionlink; - echo ''."\n
\n"; - $i++; + $query = $_SERVER['QUERY_STRING']; + $cache = new CachedPage( + $conf->get('config.PAGE_CACHE'), + page_url($_SERVER), + startsWith($query,'do=dailyrss') && !isLoggedIn() + ); + $cached = $cache->cachedVersion(); + if (!empty($cached)) { + echo $cached; + exit; } - echo '
'; - $cache->cache(ob_get_contents()); - ob_end_flush(); - exit; -} - -// ------------------------------------------------------------------------------------------ -// Ouput the last 50 links in ATOM format. -function showATOM() -{ - header('Content-Type: application/atom+xml; charset=utf-8'); - - // $usepermalink : If true, use permalink instead of final link. - // User just has to add 'permalink' in URL parameters. eg. 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: + // Read links from database (and filter private links if used it not logged in). + $LINKSDB = new LinkDB( + $conf->get('resource.datastore'), + isLoggedIn(), + $conf->get('privacy.hide_public_links'), + $conf->get('redirector.url'), + $conf->get('redirector.encode_url') + ); - $LINKSDB=new linkdb(isLoggedIn() || $GLOBALS['config']['OPEN_SHAARLI']); // Read links from database (and filter private links if used it not logged in). - - - // Optionnaly filter the results: - $linksToDisplay=array(); - if (!empty($_GET['searchterm'])) $linksToDisplay = $LINKSDB->filterFulltext($_GET['searchterm']); - elseif (!empty($_GET['searchtags'])) $linksToDisplay = $LINKSDB->filterTags(trim($_GET['searchtags'])); - else $linksToDisplay = $LINKSDB; - - $pageaddr=htmlspecialchars(indexUrl()); - $latestDate = ''; - $entries=''; - $i=0; - $keys=array(); foreach($linksToDisplay as $key=>$value) { $keys[]=$key; } // No, I can't use array_keys(). - while ($i<50 && $i'; - if ($usepermalinks===true) - $entries.=''.$guid.''; - else - $entries.=''.$guid.''; - if (!$GLOBALS['config']['HIDE_TIMESTAMPS'] || isLoggedIn()) $entries.=''.htmlspecialchars($iso8601date).''; - - // Add permalink in description - $descriptionlink = htmlspecialchars('(Permalink)'); - // If user wants permalinks first, put the final link in description - if ($usepermalinks===true) $descriptionlink = htmlspecialchars('(Link)'); - if (strlen($link['description'])>0) $descriptionlink = '<br>'.$descriptionlink; - - $entries.=''.htmlspecialchars(nl2br(keepMultipleSpaces(text2clickable(htmlspecialchars($link['description']))))).$descriptionlink."\n"; - if ($link['tags']!='') // Adding tags to each ATOM entry (as mentioned in ATOM specification) - { - foreach(explode(' ',$link['tags']) as $tag) - { $entries.=''."\n"; } - } - $entries.="\n"; - $i++; - } - $feed=''; - $feed.=''.htmlspecialchars($GLOBALS['title']).''; - if (!$GLOBALS['config']['HIDE_TIMESTAMPS'] || isLoggedIn()) $feed.=''.htmlspecialchars($latestDate).''; - $feed.=''; - if (!empty($GLOBALS['config']['PUBSUBHUB_URL'])) - { - $feed.=''; - $feed.=''; - $feed.=''; - } - $feed.=''.htmlspecialchars($pageaddr).''.htmlspecialchars($pageaddr).''; - $feed.=''.htmlspecialchars($pageaddr).''."\n\n"; // Yes, I know I should use a real IRI (RFC3987), but the site URL will do. - $feed.=$entries; - $feed.=''; - echo $feed; - - $cache->cache(ob_get_contents()); - ob_end_flush(); - exit; -} - -// ------------------------------------------------------------------------------------------ -// Daily RSS feed: 1 RSS entry per day giving all the links on that day. -// Gives the last 7 days (which have links). -// This RSS feed cannot be filtered. -function showDailyRSS() -{ - // Cache system - $query = $_SERVER["QUERY_STRING"]; - $cache = new pageCache(pageUrl(),startsWith($query,'do=dailyrss') && !isLoggedIn()); - $cached = $cache->cachedVersion(); if (!empty($cached)) { echo $cached; exit; } - // If cached was not found (or not usable), then read the database and build the response: - $LINKSDB=new linkdb(isLoggedIn() || $GLOBALS['config']['OPEN_SHAARLI']); // Read links from database (and filter private links if used it not logged in). - /* Some Shaarlies may have very few links, so we need to look back in time (rsort()) until we have enough days ($nb_of_days). */ - $linkdates=array(); foreach($LINKSDB as $linkdate=>$value) { $linkdates[]=$linkdate; } + $linkdates = array(); + foreach ($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; + $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) > $nb_of_days) { + break; // Have we collected enough days? } - if (count($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()); + $pageaddr = escape(index_url($_SERVER)); echo ''; - echo 'Daily - '.htmlspecialchars($GLOBALS['title']).''.$pageaddr.''; - echo 'Daily shared linksen-en'.$pageaddr.''."\n"; - - foreach($days as $day=>$linkdates) // For each day. - { - $daydate = utf8_encode(strftime('%A %d, %B %Y',linkdate2timestamp($day.'_000000'))); // Full text date - $rfc822date = linkdate2rfc822($day.'_000000'); - $absurl=htmlspecialchars(indexUrl().'?do=daily&day='.$day); // Absolute URL of the corresponding "Daily" page. - echo ''.htmlspecialchars($GLOBALS['title'].' - '.$daydate).''.$absurl.''.$absurl.''; - echo ''.htmlspecialchars($rfc822date).""; - + echo ''; + echo 'Daily - '. $conf->get('general.title') . ''; + echo ''. $pageaddr .''; + echo 'Daily shared links'; + echo 'en-en'; + echo ''. $pageaddr .''. PHP_EOL; + + // For each day. + foreach ($days as $day => $linkdates) { + $dayDate = DateTime::createFromFormat(LinkDB::LINK_DATE_FORMAT, $day.'_000000'); + $absurl = escape(index_url($_SERVER).'?do=daily&day='.$day); // Absolute URL of the corresponding "Daily" page. + // Build the HTML body of this RSS entry. - $html=''; - $href=''; - $links=array(); + $html = ''; + $href = ''; + $links = array(); + // We pre-format some fields for proper output. - foreach($linkdates as $linkdate) - { + foreach ($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; + $l['formatedDescription'] = format_description($l['description'], $conf->get('redirector.url')); + $l['thumbnail'] = thumbnail($conf, $l['url']); + $l_date = DateTime::createFromFormat(LinkDB::LINK_DATE_FORMAT, $l['linkdate']); + $l['timestamp'] = $l_date->getTimestamp(); + if (startsWith($l['url'], '?')) { + $l['url'] = index_url($_SERVER) . $l['url']; // make permalink URL absolute + } + $links[$linkdate] = $l; } + // Then build the HTML for this day: - $tpl = new RainTPL; - $tpl->assign('links',$links); - $html = $tpl->draw('dailyrss',$return_string=true); - echo "\n"; - echo ''."\n\n\n"; - - } - echo ''; - + $tpl = new RainTPL; + $tpl->assign('title', $conf->get('general.title')); + $tpl->assign('daydate', $dayDate->getTimestamp()); + $tpl->assign('absurl', $absurl); + $tpl->assign('links', $links); + $tpl->assign('rssdate', escape($dayDate->format(DateTime::RSS))); + $tpl->assign('hide_timestamps', $conf->get('privacy.hide_timestamps', false)); + $html = $tpl->draw('dailyrss', $return_string=true); + + echo $html . PHP_EOL; + } + echo ''; + $cache->cache(ob_get_contents()); ob_end_flush(); exit; } -// "Daily" page. -function showDaily() +/** + * Show the 'Daily' page. + * + * @param PageBuilder $pageBuilder Template engine wrapper. + * @param LinkDB $LINKSDB LinkDB instance. + * @param ConfigManager $conf Configuration Manager instance. + * @param PluginManager $pluginManager Plugin Manager instane. + */ +function showDaily($pageBuilder, $LINKSDB, $conf, $pluginManager) { - $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. + $day=date('Ymd',strtotime('-1 day')); // Yesterday, in format YYYYMMDD. if (isset($_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) { $i=count($days)-1; $day=$days[$i]; } + $previousday=''; + $nextday=''; if ($i!==false) { - if ($i>1) $previousday=$days[$i-1]; + if ($i>=1) $previousday=$days[$i-1]; if ($ifilterDay($day); + try { + $linksToDisplay = $LINKSDB->filterDay($day); + } catch (Exception $exc) { + error_log($exc); + $linksToDisplay = array(); + } + // We pre-format some fields for proper output. foreach($linksToDisplay as $key=>$link) { - $linksToDisplay[$key]['taglist']=explode(' ',$link['tags']); - $linksToDisplay[$key]['formatedDescription']=nl2br(keepMultipleSpaces(text2clickable(htmlspecialchars($link['description'])))); - $linksToDisplay[$key]['thumbnail'] = thumbnail($link['url']); + + $taglist = explode(' ',$link['tags']); + uasort($taglist, 'strcasecmp'); + $linksToDisplay[$key]['taglist']=$taglist; + $linksToDisplay[$key]['formatedDescription'] = format_description($link['description'], $conf->get('redirector.url')); + $linksToDisplay[$key]['thumbnail'] = thumbnail($conf, $link['url']); + $date = DateTime::createFromFormat(LinkDB::LINK_DATE_FORMAT, $link['linkdate']); + $linksToDisplay[$key]['timestamp'] = $date->getTimestamp(); } - + /* 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 + 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. @@ -1126,7 +698,7 @@ function showDaily() // 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. + // This is not perfect, but it's usually OK. $length=strlen($link['title'])+(342*strlen($link['description']))/836; if ($link['thumbnail']) $length +=100; // 1 thumbnails roughly takes 100 pixels height. // Then put in column which is the less filled: @@ -1135,95 +707,257 @@ function showDaily() array_push($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'); + + $dayDate = DateTime::createFromFormat(LinkDB::LINK_DATE_FORMAT, $day.'_000000'); + $data = array( + 'linksToDisplay' => $linksToDisplay, + 'cols' => $columns, + 'day' => $dayDate->getTimestamp(), + 'previousday' => $previousday, + 'nextday' => $nextday, + ); + + $pluginManager->executeHooks('render_daily', $data, array('loggedin' => isLoggedIn())); + + foreach ($data as $key => $value) { + $pageBuilder->assign($key, $value); + } + + $pageBuilder->renderPage('daily'); exit; } +/** + * Renders the linklist + * + * @param pageBuilder $PAGE pageBuilder instance. + * @param LinkDB $LINKSDB LinkDB instance. + * @param ConfigManager $conf Configuration Manager instance. + * @param PluginManager $pluginManager Plugin Manager instance. + */ +function showLinkList($PAGE, $LINKSDB, $conf, $pluginManager) { + buildLinkList($PAGE,$LINKSDB, $conf, $pluginManager); // Compute list of links to display + $PAGE->renderPage('linklist'); +} -// ------------------------------------------------------------------------------------------ -// Render HTML page (according to URL parameters and user rights) -function renderPage() +/** + * Render HTML page (according to URL parameters and user rights) + * + * @param ConfigManager $conf Configuration Manager instance. + * @param PluginManager $pluginManager Plugin Manager instance, + */ +function renderPage($conf, $pluginManager) { - $LINKSDB=new linkdb(isLoggedIn() || $GLOBALS['config']['OPEN_SHAARLI']); // Read links from database (and filter private links if used it not logged in). + $LINKSDB = new LinkDB( + $conf->get('resource.datastore'), + isLoggedIn(), + $conf->get('privacy.hide_public_links'), + $conf->get('redirector.url'), + $conf->get('redirector.encode_url') + ); + + $updater = new Updater( + read_updates_file($conf->get('resource.updates')), + $LINKSDB, + $conf, + isLoggedIn() + ); + try { + $newUpdates = $updater->update(); + if (! empty($newUpdates)) { + write_updates_file( + $conf->get('resource.updates'), + $updater->getDoneUpdates() + ); + } + } + catch(Exception $e) { + die($e->getMessage()); + } + + $PAGE = new PageBuilder($conf); + $PAGE->assign('linkcount', count($LINKSDB)); + $PAGE->assign('privateLinkcount', count_private($LINKSDB)); + $PAGE->assign('plugin_errors', $pluginManager->getErrors()); + + // Determine which page will be rendered. + $query = (isset($_SERVER['QUERY_STRING'])) ? $_SERVER['QUERY_STRING'] : ''; + $targetPage = Router::findPage($query, $_GET, isLoggedIn()); + + // Call plugin hooks for header, footer and includes, specifying which page will be rendered. + // Then assign generated data to RainTPL. + $common_hooks = array( + 'includes', + 'header', + 'footer', + ); + + foreach($common_hooks as $name) { + $plugin_data = array(); + $pluginManager->executeHooks('render_' . $name, $plugin_data, + array( + 'target' => $targetPage, + 'loggedin' => isLoggedIn() + ) + ); + $PAGE->assign('plugins_' . $name, $plugin_data); + } // -------- Display login form. - if (isset($_SERVER["QUERY_STRING"]) && startswith($_SERVER["QUERY_STRING"],'do=login')) + if ($targetPage == Router::$PAGE_LOGIN) { - if ($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']) ? $_SERVER['HTTP_REFERER']:'')); + if ($conf->get('security.open_shaarli')) { header('Location: ?'); exit; } // No need to login for open Shaarli + if (isset($_GET['username'])) { + $PAGE->assign('username', escape($_GET['username'])); + } + $PAGE->assign('returnurl',(isset($_SERVER['HTTP_REFERER']) ? escape($_SERVER['HTTP_REFERER']):'')); $PAGE->renderPage('loginform'); exit; } // -------- User wants to logout. - if (isset($_SERVER["QUERY_STRING"]) && startswith($_SERVER["QUERY_STRING"],'do=logout')) + if (isset($_SERVER['QUERY_STRING']) && startsWith($_SERVER['QUERY_STRING'], 'do=logout')) { - invalidateCaches(); + invalidateCaches($conf->get('resource.page_cache')); logout(); header('Location: ?'); exit; } // -------- Picture wall - if (isset($_SERVER["QUERY_STRING"]) && startswith($_SERVER["QUERY_STRING"],'do=picwall')) + if ($targetPage == Router::$PAGE_PICWALL) { - // Optionnaly filter the results: - $links=array(); - if (!empty($_GET['searchterm'])) $links = $LINKSDB->filterFulltext($_GET['searchterm']); - elseif (!empty($_GET['searchtags'])) $links = $LINKSDB->filterTags(trim($_GET['searchtags'])); - else $links = $LINKSDB; - $body=''; - $linksToDisplay=array(); + // Optionally filter the results: + $links = $LINKSDB->filterSearch($_GET); + $linksToDisplay = array(); // Get only links which have a thumbnail. foreach($links as $link) { - $permalink='?'.htmlspecialchars(smallhash($link['linkdate']),ENT_QUOTES); - $thumb=lazyThumbnail($link['url'],$permalink); + $permalink='?'.escape(smallhash($link['linkdate'])); + $thumb=lazyThumbnail($conf, $link['url'],$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); + + $data = array( + 'linksToDisplay' => $linksToDisplay, + ); + $pluginManager->executeHooks('render_picwall', $data, array('loggedin' => isLoggedIn())); + + foreach ($data as $key => $value) { + $PAGE->assign($key, $value); + } + $PAGE->renderPage('picwall'); exit; } // -------- Tag cloud - if (isset($_SERVER["QUERY_STRING"]) && startswith($_SERVER["QUERY_STRING"],'do=tagcloud')) + if ($targetPage == Router::$PAGE_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)); + $maxcount = 0; + foreach ($tags as $value) { + $maxcount = max($maxcount, $value); + } + + // Sort tags alphabetically: case insensitive, support locale if avalaible. + uksort($tags, function($a, $b) { + // Collator is part of PHP intl. + if (class_exists('Collator')) { + $c = new Collator(setlocale(LC_COLLATE, 0)); + if (!intl_is_failure(intl_get_error_code())) { + return $c->compare($a, $b); + } + } + return strcasecmp($a, $b); + }); + + $tagList = array(); + foreach($tags as $key => $value) { + // Tag font size scaling: + // default 15 and 30 logarithm bases affect scaling, + // 22 and 6 are arbitrary font sizes for max and min sizes. + $size = log($value, 15) / log($maxcount, 30) * 2.2 + 0.8; + $tagList[$key] = array( + 'count' => $value, + 'size' => number_format($size, 2, '.', ''), + ); + } + + $data = array( + 'tags' => $tagList, + ); + $pluginManager->executeHooks('render_tagcloud', $data, array('loggedin' => isLoggedIn())); + + foreach ($data as $key => $value) { + $PAGE->assign($key, $value); } - $PAGE = new pageBuilder; - $PAGE->assign('linkcount',count($LINKSDB)); - $PAGE->assign('tags',$tagList); + $PAGE->renderPage('tagcloud'); - exit; + exit; + } + + // Daily page. + if ($targetPage == Router::$PAGE_DAILY) { + showDaily($PAGE, $LINKSDB, $conf, $pluginManager); + } + + // ATOM and RSS feed. + if ($targetPage == Router::$PAGE_FEED_ATOM || $targetPage == Router::$PAGE_FEED_RSS) { + $feedType = $targetPage == Router::$PAGE_FEED_RSS ? FeedBuilder::$FEED_RSS : FeedBuilder::$FEED_ATOM; + header('Content-Type: application/'. $feedType .'+xml; charset=utf-8'); + + // Cache system + $query = $_SERVER['QUERY_STRING']; + $cache = new CachedPage( + $conf->get('resource.page_cache'), + page_url($_SERVER), + startsWith($query,'do='. $targetPage) && !isLoggedIn() + ); + $cached = $cache->cachedVersion(); + if (!empty($cached)) { + echo $cached; + exit; + } + + // Generate data. + $feedGenerator = new FeedBuilder($LINKSDB, $feedType, $_SERVER, $_GET, isLoggedIn()); + $feedGenerator->setLocale(strtolower(setlocale(LC_COLLATE, 0))); + $feedGenerator->setHideDates($conf->get('privacy.hide_timestamps') && !isLoggedIn()); + $feedGenerator->setUsePermalinks(isset($_GET['permalinks']) || !$conf->get('feed.rss_permalinks')); + $pshUrl = $conf->get('config.PUBSUBHUB_URL'); + if (!empty($pshUrl)) { + $feedGenerator->setPubsubhubUrl($pshUrl); + } + $data = $feedGenerator->buildData(); + + // Process plugin hook. + $pluginManager->executeHooks('render_feed', $data, array( + 'loggedin' => isLoggedIn(), + 'target' => $targetPage, + )); + + // Render the template. + $PAGE->assignAll($data); + $PAGE->renderPage('feed.'. $feedType); + $cache->cache(ob_get_contents()); + ob_end_flush(); + exit; + } + + // Display openseach plugin (XML) + if ($targetPage == Router::$PAGE_OPENSEARCH) { + header('Content-Type: application/xml; charset=utf-8'); + $PAGE->assign('serverurl', index_url($_SERVER)); + $PAGE->renderPage('opensearch'); + exit; } // -------- User clicks on a tag in a link: The tag is added to the list of searched tags (searchtags=...) @@ -1232,23 +966,65 @@ function renderPage() // Get previous URL (http_referer) and add the tag to the searchtags parameters in query. if (empty($_SERVER['HTTP_REFERER'])) { header('Location: ?searchtags='.urlencode($_GET['addtag'])); exit; } // In case browser does not send HTTP_REFERER parse_str(parse_url($_SERVER['HTTP_REFERER'],PHP_URL_QUERY), $params); - $params['searchtags'] = (empty($params['searchtags']) ? trim($_GET['addtag']) : trim($params['searchtags']).' '.trim($_GET['addtag'])); + + // Prevent redirection loop + if (isset($params['addtag'])) { + unset($params['addtag']); + } + + // Check if this tag is already in the search query and ignore it if it is. + // Each tag is always separated by a space + if (isset($params['searchtags'])) { + $current_tags = explode(' ', $params['searchtags']); + } else { + $current_tags = array(); + } + $addtag = true; + foreach ($current_tags as $value) { + if ($value === $_GET['addtag']) { + $addtag = false; + break; + } + } + // Append the tag if necessary + if (empty($params['searchtags'])) { + $params['searchtags'] = trim($_GET['addtag']); + } + else if ($addtag) { + $params['searchtags'] = trim($params['searchtags']).' '.trim($_GET['addtag']); + } + unset($params['page']); // We also remove page (keeping the same page has no sense, since the results are different) header('Location: ?'.http_build_query($params)); exit; } // -------- User clicks on a tag in result count: Remove the tag from the list of searched tags (searchtags=...) - if (isset($_GET['removetag'])) - { + 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); + if (empty($_SERVER['HTTP_REFERER'])) { + header('Location: ?'); + exit; + } + + // In case browser does not send HTTP_REFERER + parse_str(parse_url($_SERVER['HTTP_REFERER'], PHP_URL_QUERY), $params); + + // Prevent redirection loop + if (isset($params['removetag'])) { + unset($params['removetag']); + } + + if (isset($params['searchtags'])) { + $tags = explode(' ', $params['searchtags']); + // Remove value from array $tags. + $tags = array_diff($tags, array($_GET['removetag'])); + $params['searchtags'] = implode(' ',$tags); + + if (empty($params['searchtags'])) { + unset($params['searchtags']); + } + unset($params['page']); // We also remove page (keeping the same page has no sense, since the results are different) } header('Location: ?'.http_build_query($params)); @@ -1256,135 +1032,180 @@ function renderPage() } // -------- User wants to change the number of links per page (linksperpage=...) - if (isset($_GET['linksperpage'])) - { - if (is_numeric($_GET['linksperpage'])) { $_SESSION['LINKS_PER_PAGE']=abs(intval($_GET['linksperpage'])); } - header('Location: '.(empty($_SERVER['HTTP_REFERER'])?'?':$_SERVER['HTTP_REFERER'])); + if (isset($_GET['linksperpage'])) { + if (is_numeric($_GET['linksperpage'])) { + $_SESSION['LINKS_PER_PAGE']=abs(intval($_GET['linksperpage'])); + } + + header('Location: '. generateLocation($_SERVER['HTTP_REFERER'], $_SERVER['HTTP_HOST'], array('linksperpage'))); exit; } - + // -------- User wants to see only private links (toggle) - if (isset($_GET['privateonly'])) - { - if (empty($_SESSION['privateonly'])) - { - $_SESSION['privateonly']=1; // See only private links - } - else - { + if (isset($_GET['privateonly'])) { + if (empty($_SESSION['privateonly'])) { + $_SESSION['privateonly'] = 1; // See only private links + } else { unset($_SESSION['privateonly']); // See all links } - header('Location: '.(empty($_SERVER['HTTP_REFERER'])?'?':$_SERVER['HTTP_REFERER'])); + + header('Location: '. generateLocation($_SERVER['HTTP_REFERER'], $_SERVER['HTTP_HOST'], array('privateonly'))); exit; } // -------- Handle other actions allowed for non-logged in users: if (!isLoggedIn()) { - // User tries to post new link but is not loggedin: + // User tries to post new link but is not logged in: // Show login screen, then redirect to ?post=... if (isset($_GET['post'])) { - header('Location: ?do=login&post='.urlencode($_GET['post']).(!empty($_GET['title'])?'&title='.urlencode($_GET['title']):'').(!empty($_GET['source'])?'&source='.urlencode($_GET['source']):'')); // Redirect to login page, then back to post link. + header('Location: ?do=login&post='.urlencode($_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; + } + + showLinkList($PAGE, $LINKSDB, $conf, $pluginManager); + if (isset($_GET['edit_link'])) { + header('Location: ?do=login&edit_link='. escape($_GET['edit_link'])); exit; } - $PAGE = new pageBuilder; - buildLinkList($PAGE,$LINKSDB); // Compute list of links to display - $PAGE->renderPage('linklist'); - exit; // Never remove this one ! All operations below are reserved for logged in user. + + exit; // Never remove this one! All operations below are reserved for logged in user. } // -------- All other functions are reserved for the registered user: // -------- Display the Tools menu if requested (import/export/bookmarklet...) - if (isset($_SERVER["QUERY_STRING"]) && startswith($_SERVER["QUERY_STRING"],'do=tools')) + if ($targetPage == Router::$PAGE_TOOLS) { - $PAGE = new pageBuilder; - $PAGE->assign('linkcount',count($LINKSDB)); - $PAGE->assign('pageabsaddr',indexUrl()); + $data = array( + 'pageabsaddr' => index_url($_SERVER), + ); + $pluginManager->executeHooks('render_tools', $data); + + foreach ($data as $key => $value) { + $PAGE->assign($key, $value); + } + $PAGE->renderPage('tools'); exit; } // -------- User wants to change his/her password. - if (isset($_SERVER["QUERY_STRING"]) && startswith($_SERVER["QUERY_STRING"],'do=changepasswd')) + if ($targetPage == Router::$PAGE_CHANGEPASSWORD) { - if ($GLOBALS['config']['OPEN_SHAARLI']) die('You are not supposed to change a password on an Open Shaarli.'); + if ($conf->get('security.open_shaarli')) { + die('You are not supposed to change a password on an Open Shaarli.'); + } + if (!empty($_POST['setpassword']) && !empty($_POST['oldpassword'])) { - if (!tokenOk($_POST['token'])) die('Wrong token.'); // Go away ! + if (!tokenOk($_POST['token'])) die('Wrong token.'); // Go away! // Make sure old password is correct. - $oldhash = sha1($_POST['oldpassword'].$GLOBALS['login'].$GLOBALS['salt']); - if ($oldhash!=$GLOBALS['hash']) { echo ''; exit; } + $oldhash = sha1($_POST['oldpassword'].$conf->get('credentials.login').$conf->get('credentials.salt')); + if ($oldhash!= $conf->get('credentials.hash')) { echo ''; exit; } // Save new password - $GLOBALS['salt'] = sha1(uniqid('',true).'_'.mt_rand()); // Salt renders rainbow-tables attacks useless. - $GLOBALS['hash'] = sha1($_POST['setpassword'].$GLOBALS['login'].$GLOBALS['salt']); - writeConfig(); - echo ''; + // Salt renders rainbow-tables attacks useless. + $conf->set('credentials.salt', sha1(uniqid('', true) .'_'. mt_rand())); + $conf->set('credentials.hash', sha1($_POST['setpassword'] . $conf->get('credentials.login') . $conf->get('credentials.salt'))); + try { + $conf->write(isLoggedIn()); + } + catch(Exception $e) { + error_log( + 'ERROR while writing config file after changing password.' . PHP_EOL . + $e->getMessage() + ); + + // TODO: do not handle exceptions/errors in JS. + echo ''; + exit; + } + echo ''; exit; } else // show the change password form. { - $PAGE = new pageBuilder; - $PAGE->assign('linkcount',count($LINKSDB)); - $PAGE->assign('token',getToken()); $PAGE->renderPage('changepassword'); exit; } } // -------- User wants to change configuration - if (isset($_SERVER["QUERY_STRING"]) && startswith($_SERVER["QUERY_STRING"],'do=configure')) + if ($targetPage == Router::$PAGE_CONFIGURE) { if (!empty($_POST['title']) ) { - if (!tokenOk($_POST['token'])) die('Wrong token.'); // Go away ! + if (!tokenOk($_POST['token'])) { + die('Wrong token.'); // Go away! + } $tz = 'UTC'; - if (!empty($_POST['continent']) && !empty($_POST['city'])) - if (isTZvalid($_POST['continent'],$_POST['city'])) - $tz = $_POST['continent'].'/'.$_POST['city']; - $GLOBALS['timezone'] = $tz; - $GLOBALS['title']=$_POST['title']; - $GLOBALS['redirector']=$_POST['redirector']; - $GLOBALS['disablesessionprotection']=!empty($_POST['disablesessionprotection']); - writeConfig(); - echo ''; + if (!empty($_POST['continent']) && !empty($_POST['city']) + && isTimeZoneValid($_POST['continent'], $_POST['city']) + ) { + $tz = $_POST['continent'] . '/' . $_POST['city']; + } + $conf->set('general.timezone', $tz); + $conf->set('general.title', escape($_POST['title'])); + $conf->set('general.header_link', escape($_POST['titleLink'])); + $conf->set('redirector.url', escape($_POST['redirector'])); + $conf->set('security.session_protection_disabled', !empty($_POST['disablesessionprotection'])); + $conf->set('privacy.default_private_links', !empty($_POST['privateLinkByDefault'])); + $conf->set('feed.rss_permalinks', !empty($_POST['enableRssPermalinks'])); + $conf->set('updates.check_updates', !empty($_POST['updateCheck'])); + $conf->set('privacy.hide_public_links', !empty($_POST['hidePublicLinks'])); + try { + $conf->write(isLoggedIn()); + } + catch(Exception $e) { + error_log( + 'ERROR while writing config file after configuration update.' . PHP_EOL . + $e->getMessage() + ); + + // TODO: do not handle exceptions/errors in JS. + echo ''; + exit; + } + echo ''; exit; } else // Show the configuration form. { - $PAGE = new pageBuilder; - $PAGE->assign('linkcount',count($LINKSDB)); - $PAGE->assign('token',getToken()); - $PAGE->assign('title',htmlspecialchars( empty($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('title', $conf->get('general.title')); + $PAGE->assign('redirector', $conf->get('redirector.url')); + list($timezone_form, $timezone_js) = generateTimeZoneForm($conf->get('general.timezone')); + $PAGE->assign('timezone_form', $timezone_form); $PAGE->assign('timezone_js',$timezone_js); + $PAGE->assign('private_links_default', $conf->get('privacy.default_private_links', false)); + $PAGE->assign('session_protection_disabled', $conf->get('security.session_protection_disabled', false)); + $PAGE->assign('enable_rss_permalinks', $conf->get('feed.rss_permalinks', false)); + $PAGE->assign('enable_update_check', $conf->get('updates.check_updates', true)); + $PAGE->assign('hide_public_links', $conf->get('privacy.hide_public_links', false)); $PAGE->renderPage('configure'); exit; } } // -------- User wants to rename a tag or delete it - if (isset($_SERVER["QUERY_STRING"]) && startswith($_SERVER["QUERY_STRING"],'do=changetag')) + if ($targetPage == Router::$PAGE_CHANGETAG) { - if (empty($_POST['fromtag'])) - { - $PAGE = new pageBuilder; - $PAGE->assign('linkcount',count($LINKSDB)); - $PAGE->assign('token',getToken()); + if (empty($_POST['fromtag']) || (empty($_POST['totag']) && isset($_POST['renametag']))) { + $PAGE->assign('tags', $LINKSDB->allTags()); $PAGE->renderPage('changetag'); exit; } - if (!tokenOk($_POST['token'])) die('Wrong token.'); + + 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. + if (isset($_POST['deletetag']) && !empty($_POST['fromtag'])) { + $needle = trim($_POST['fromtag']); + // True for case-sensitive tag search. + $linksToAlter = $LINKSDB->filterSearch(array('searchtags' => $needle), true); foreach($linksToAlter as $key=>$value) { $tags = explode(' ',trim($value['tags'])); @@ -1392,34 +1213,32 @@ function renderPage() $value['tags']=trim(implode(' ',$tags)); $LINKSDB[$key]=$value; } - $LINKSDB->savedb(); // save to disk - echo ''; + $LINKSDB->savedb($conf->get('resource.page_cache')); + echo ''; exit; } // Rename a tag: - if (!empty($_POST['renametag']) && !empty($_POST['fromtag']) && !empty($_POST['totag'])) - { - $needle=trim($_POST['fromtag']); - $linksToAlter = $LINKSDB->filterTags($needle,true); // true for case-sensitive tag search. + if (isset($_POST['renametag']) && !empty($_POST['fromtag']) && !empty($_POST['totag'])) { + $needle = trim($_POST['fromtag']); + // True for case-sensitive tag search. + $linksToAlter = $LINKSDB->filterSearch(array('searchtags' => $needle), true); foreach($linksToAlter as $key=>$value) { $tags = explode(' ',trim($value['tags'])); - $tags[array_search($needle,$tags)] = trim($_POST['totag']); // Remplace tags value. + $tags[array_search($needle,$tags)] = trim($_POST['totag']); // Replace tags value. $value['tags']=trim(implode(' ',$tags)); $LINKSDB[$key]=$value; } - $LINKSDB->savedb(); // save to disk - echo ''; + $LINKSDB->savedb($conf->get('resource.page_cache')); // Save to disk. + echo ''; exit; } } - // -------- User wants to add a link without using the bookmarklet: show form. - if (isset($_SERVER["QUERY_STRING"]) && startswith($_SERVER["QUERY_STRING"],'do=addlink')) + // -------- User wants to add a link without using the bookmarklet: Show form. + if ($targetPage == Router::$PAGE_ADDLINK) { - $PAGE = new pageBuilder; - $PAGE->assign('linkcount',count($LINKSDB)); $PAGE->renderPage('addlink'); exit; } @@ -1427,51 +1246,119 @@ function renderPage() // -------- User clicked the "Save" button when editing a link: Save link to database. if (isset($_POST['save_edit'])) { - if (!tokenOk($_POST['token'])) die('Wrong token.'); // Go away ! - $tags = trim(preg_replace('/\s\s+/',' ', $_POST['lf_tags'])); // Remove multiple spaces. - $linkdate=$_POST['lf_linkdate']; - $link = array('title'=>trim($_POST['lf_title']),'url'=>trim($_POST['lf_url']),'description'=>trim($_POST['lf_description']),'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. + $linkdate = $_POST['lf_linkdate']; + $updated = isset($LINKSDB[$linkdate]) ? strval(date('Ymd_His')) : false; + + // Go away! + if (! tokenOk($_POST['token'])) { + die('Wrong token.'); + } + // Remove multiple spaces. + $tags = trim(preg_replace('/\s\s+/', ' ', $_POST['lf_tags'])); + // Remove first '-' char in tags. + $tags = preg_replace('/(^| )\-/', '$1', $tags); + // Remove duplicates. + $tags = implode(' ', array_unique(explode(' ', $tags))); + + $url = trim($_POST['lf_url']); + if (! startsWith($url, 'http:') && ! startsWith($url, 'https:') + && ! startsWith($url, 'ftp:') && ! startsWith($url, 'magnet:') + && ! startsWith($url, '?') && ! startsWith($url, 'javascript:') + ) { + $url = 'http://' . $url; + } + + $link = array( + 'title' => trim($_POST['lf_title']), + 'url' => $url, + 'description' => $_POST['lf_description'], + 'private' => (isset($_POST['lf_private']) ? 1 : 0), + 'linkdate' => $linkdate, + 'updated' => $updated, + 'tags' => str_replace(',', ' ', $tags) + ); + // If title is empty, use the URL as title. + if ($link['title'] == '') { + $link['title'] = $link['url']; + } + + $pluginManager->executeHooks('save_link', $link); + $LINKSDB[$linkdate] = $link; - $LINKSDB->savedb(); // save to disk - pubsubhub(); + $LINKSDB->savedb($conf->get('resource.page_cache')); + pubsubhub($conf); // If we are called from the bookmarklet, we must close the popup: - if (isset($_GET['source']) && $_GET['source']=='bookmarklet') { echo ''; exit; } - $returnurl = ( isset($_POST['returnurl']) ? $_POST['returnurl'] : '?' ); - $returnurl .= '#'.smallHash($linkdate); // Scroll to the link which has been edited. - header('Location: '.$returnurl); // After saving the link, redirect to the page the user was on. + if (isset($_GET['source']) && ($_GET['source']=='bookmarklet' || $_GET['source']=='firefoxsocialapi')) { + echo ''; + exit; + } + + $returnurl = !empty($_POST['returnurl']) ? $_POST['returnurl'] : '?'; + $location = generateLocation($returnurl, $_SERVER['HTTP_HOST'], array('addlink', 'post', 'edit_link')); + // Scroll to the link which has been edited. + $location .= '#' . smallHash($_POST['lf_linkdate']); + // After saving the link, redirect to the page the user was on. + header('Location: '. $location); exit; } // -------- User clicked the "Cancel" button when editing a link. if (isset($_POST['cancel_edit'])) { - // If we are called from the bookmarklet, we must close the popup; - if (isset($_GET['source']) && $_GET['source']=='bookmarklet') { echo ''; exit; } + // If we are called from the bookmarklet, we must close the popup: + if (isset($_GET['source']) && ($_GET['source']=='bookmarklet' || $_GET['source']=='firefoxsocialapi')) { echo ''; exit; } $returnurl = ( isset($_POST['returnurl']) ? $_POST['returnurl'] : '?' ); $returnurl .= '#'.smallHash($_POST['lf_linkdate']); // Scroll to the link which has been edited. + $returnurl = generateLocation($returnurl, $_SERVER['HTTP_HOST'], array('addlink', 'post', 'edit_link')); header('Location: '.$returnurl); // After canceling, redirect to the page the user was on. exit; } - // -------- User clicked the "Delete" button when editing a link : Delete link from database. + // -------- 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 + // - confirmation is handled by JavaScript // - we are protected from XSRF by the token. $linkdate=$_POST['lf_linkdate']; + + $pluginManager->executeHooks('delete_link', $LINKSDB[$linkdate]); + unset($LINKSDB[$linkdate]); - $LINKSDB->savedb(); // save to disk + $LINKSDB->savedb('resource.page_cache'); // save to disk // If we are called from the bookmarklet, we must close the popup: - if (isset($_GET['source']) && $_GET['source']=='bookmarklet') { echo ''; exit; } - $returnurl = ( isset($_POST['returnurl']) ? $_POST['returnurl'] : '?' ); - if ($returnurl=='?') { $returnurl = (isset($_SERVER['HTTP_REFERER']) ? $_SERVER['HTTP_REFERER'] : '?'); } - header('Location: '.$returnurl); // After deleting the link, redirect to the page the user was on. + if (isset($_GET['source']) && ($_GET['source']=='bookmarklet' || $_GET['source']=='firefoxsocialapi')) { echo ''; exit; } + // Pick where we're going to redirect + // ============================================================= + // Basically, we can't redirect to where we were previously if it was a permalink + // or an edit_link, because it would 404. + // Cases: + // - / : nothing in $_GET, redirect to self + // - /?page : redirect to self + // - /?searchterm : redirect to self (there might be other links) + // - /?searchtags : redirect to self + // - /permalink : redirect to / (the link does not exist anymore) + // - /?edit_link : redirect to / (the link does not exist anymore) + // PHP treats the permalink as a $_GET variable, so we need to check if every condition for self + // redirect is not satisfied, and only then redirect to / + $location = "?"; + // Self redirection + if (count($_GET) == 0 + || isset($_GET['page']) + || isset($_GET['searchterm']) + || isset($_GET['searchtags']) + ) { + if (isset($_POST['returnurl'])) { + $location = $_POST['returnurl']; // Handle redirects given by the form + } else { + $location = generateLocation($_SERVER['HTTP_REFERER'], $_SERVER['HTTP_HOST'], array('delete_link')); + } + } + + header('Location: ' . $location); // After deleting the link, redirect to appropriate location exit; } @@ -1480,369 +1367,400 @@ function renderPage() { $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'] : '')); + $data = array( + 'link' => $link, + 'link_is_new' => false, + 'http_referer' => (isset($_SERVER['HTTP_REFERER']) ? escape($_SERVER['HTTP_REFERER']) : ''), + 'tags' => $LINKSDB->allTags(), + ); + $pluginManager->executeHooks('render_editlink', $data); + + foreach ($data as $key => $value) { + $PAGE->assign($key, $value); + } + $PAGE->renderPage('editlink'); exit; } // -------- User want to post a new link: Display link edit form. - if (isset($_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,$i); + if (isset($_GET['post'])) { + $url = cleanup_url($_GET['post']); $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) + // Check if URL is not already in database (in this case, we will edit the existing link) + $link = $LINKSDB->getLinkFromUrl($url); if (!$link) { - $link_is_new = true; // This is a new link + $link_is_new = true; $linkdate = strval(date('Ymd_His')); - $title = (empty($_GET['title']) ? '' : $_GET['title'] ); // Get title if it was provided in URL (by the bookmarklet). - $description=''; $tags=''; $private=0; - if (($url!='') && parse_url($url,PHP_URL_SCHEME)=='') $url = 'http://'.$url; - // If this is an HTTP link, we try go get the page to extact the title (otherwise we will to straight to the edit form.) - if (empty($title) && parse_url($url,PHP_URL_SCHEME)=='http') - { - list($status,$headers,$data) = getHTTP($url,4); // Short timeout to keep the application responsive. - // FIXME: Decode charset according to specified in either 1) HTTP response headers or 2) in html - if (strpos($status,'200 OK')!==false) $title=html_entity_decode(html_extract_title($data),ENT_QUOTES,'UTF-8'); + // Get title if it was provided in URL (by the bookmarklet). + $title = empty($_GET['title']) ? '' : escape($_GET['title']); + // Get description if it was provided in URL (by the bookmarklet). [Bronco added that] + $description = empty($_GET['description']) ? '' : escape($_GET['description']); + $tags = empty($_GET['tags']) ? '' : escape($_GET['tags']); + $private = !empty($_GET['private']) && $_GET['private'] === "1" ? 1 : 0; + // If this is an HTTP(S) link, we try go get the page to extract the title (otherwise we will to straight to the edit form.) + if (empty($title) && strpos(get_url_scheme($url), 'http') !== false) { + // Short timeout to keep the application responsive + list($headers, $content) = get_http_response($url, 4); + if (strpos($headers[0], '200 OK') !== false) { + // Retrieve charset. + $charset = get_charset($headers, $content); + // Extract title. + $title = html_extract_title($content); + // Re-encode title in utf-8 if necessary. + if (! empty($title) && strtolower($charset) != 'utf-8') { + $title = mb_convert_encoding($title, 'utf-8', $charset); + } + } + } + if ($url == '') { + $url = '?' . smallHash($linkdate); + $title = 'Note: '; } - if ($url=='') $url='?'.smallHash($linkdate); // In case of empty URL, this is just a text (with a link that point to itself) - $link = array('linkdate'=>$linkdate,'title'=>$title,'url'=>$url,'description'=>$description,'tags'=>$tags,'private'=>0); + $url = escape($url); + $title = escape($title); + + $link = array( + 'linkdate' => $linkdate, + 'title' => $title, + 'url' => $url, + 'description' => $description, + 'tags' => $tags, + 'private' => $private + ); + } + + $data = array( + 'link' => $link, + 'link_is_new' => $link_is_new, + 'http_referer' => (isset($_SERVER['HTTP_REFERER']) ? escape($_SERVER['HTTP_REFERER']) : ''), + 'source' => (isset($_GET['source']) ? $_GET['source'] : ''), + 'tags' => $LINKSDB->allTags(), + 'default_private_links' => $conf->get('privacy.default_private_links', false), + ); + $pluginManager->executeHooks('render_editlink', $data); + + foreach ($data as $key => $value) { + $PAGE->assign($key, $value); } - $PAGE = 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)); + if ($targetPage == Router::$PAGE_EXPORT) { + // Export links as a Netscape Bookmarks file + + if (empty($_GET['selection'])) { $PAGE->renderPage('export'); exit; } - $exportWhat=$_GET['what']; - if (!array_intersect(array('all','public','private'),array($exportWhat))) die('What are you trying to export ???'); - header('Content-Type: text/html; charset=utf-8'); - header('Content-disposition: attachment; filename=bookmarks_'.$exportWhat.'_'.strval(date('Ymd_His')).'.html'); - $currentdate=date('Y/m/d H:i:s'); - echo << - - - -Bookmarks -

Bookmarks

-HTML; - foreach($LINKSDB as $link) - { - if ($exportWhat=='all' || - ($exportWhat=='private' && $link['private']!=0) || - ($exportWhat=='public' && $link['private']==0)) - { - echo '
'.htmlspecialchars($link['title'])."\n"; - if ($link['description']!='') echo '
'.htmlspecialchars($link['description'])."\n"; - } + // export as bookmarks_(all|private|public)_YYYYmmdd_HHMMSS.html + $selection = $_GET['selection']; + if (isset($_GET['prepend_note_url'])) { + $prependNoteUrl = $_GET['prepend_note_url']; + } else { + $prependNoteUrl = false; } - exit; - } - // -------- User is uploading a file for import - if (isset($_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 ''; + try { + $PAGE->assign( + 'links', + NetscapeBookmarkUtils::filterAndFormat( + $LINKSDB, + $selection, + $prependNoteUrl, + index_url($_SERVER) + ) + ); + } catch (Exception $exc) { + header('Content-Type: text/plain; charset=utf-8'); + echo $exc->getMessage(); exit; } - if (!tokenOk($_POST['token'])) die('Wrong token.'); - importFile(); + $now = new DateTime(); + header('Content-Type: text/html; charset=utf-8'); + header( + 'Content-disposition: attachment; filename=bookmarks_' + .$selection.'_'.$now->format(LinkDB::LINK_DATE_FORMAT).'.html' + ); + $PAGE->assign('date', $now->format(DateTime::RFC822)); + $PAGE->assign('eol', PHP_EOL); + $PAGE->assign('selection', $selection); + $PAGE->renderPage('export.bookmarks'); exit; } - // -------- Show upload/import dialog: - if (isset($_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()); - $PAGE->renderPage('import'); + if ($targetPage == Router::$PAGE_IMPORT) { + // Upload a Netscape bookmark dump to import its contents + + if (! isset($_POST['token']) || ! isset($_FILES['filetoupload'])) { + // Show import dialog + $PAGE->assign('maxfilesize', getMaxFileSize()); + $PAGE->renderPage('import'); + exit; + } + + // Import bookmarks from an uploaded file + if (isset($_FILES['filetoupload']['size']) && $_FILES['filetoupload']['size'] == 0) { + // The file is too big or some form field may be missing. + echo ''; + exit; + } + if (! tokenOk($_POST['token'])) { + die('Wrong token.'); + } + $status = NetscapeBookmarkUtils::import( + $_POST, + $_FILES, + $LINKSDB, + $conf->get('resource.page_cache') + ); + echo ''; 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 - $PAGE->renderPage('linklist'); - exit; -} + // Plugin administration page + if ($targetPage == Router::$PAGE_PLUGINSADMIN) { + $pluginMeta = $pluginManager->getPluginsMeta(); -// ----------------------------------------------------------------------------------------------- -// Process the import file form. -function importFile() -{ - if (!(isLoggedIn() || $GLOBALS['config']['OPEN_SHAARLI'])) { die('Not allowed.'); } - $LINKSDB=new linkdb(isLoggedIn() || $GLOBALS['config']['OPEN_SHAARLI']); // Read links from database (and filter private links if used it not logged in). - $filename=$_FILES['filetoupload']['name']; - $filesize=$_FILES['filetoupload']['size']; - $data=file_get_contents($_FILES['filetoupload']['tmp_name']); - $private = (empty($_POST['private']) ? 0 : 1); // Should the links be imported as private ? - $overwrite = !empty($_POST['overwrite']) ; // Should the imported links overwrite existing ones ? - $import_count=0; - - // Sniff file type: - $type='unknown'; - if (startsWith($data,'')) $type='netscape'; // Netscape bookmark file (aka Firefox). - - // Then import the bookmarks. - if ($type=='netscape') - { - // This is a standard Netscape-style bookmark file. - // This format is supported by all browsers (except IE, of course), also delicious, diigo and others. - foreach(explode('
',$data) as $html) // explode is very fast - { - $link = array('linkdate'=>'','title'=>'','url'=>'','description'=>'','tags'=>'','private'=>0); - $d = explode('
',$html); - if (startswith($d[0],'(.*?)!i',$d[0],$matches); $link['title'] = (isset($matches[1]) ? trim($matches[1]) : ''); // Get title - $link['title'] = html_entity_decode($link['title'],ENT_QUOTES,'UTF-8'); - preg_match_all('! ([A-Z_]+)=\"(.*?)"!i',$html,$matches,PREG_SET_ORDER); // Get all other attributes - $raw_add_date=0; - foreach($matches as $m) - { - $attr=$m[1]; $value=$m[2]; - if ($attr=='HREF') $link['url']=html_entity_decode($value,ENT_QUOTES,'UTF-8'); - elseif ($attr=='ADD_DATE') $raw_add_date=intval($value); - elseif ($attr=='PRIVATE') $link['private']=($value=='0'?0:1); - elseif ($attr=='TAGS') $link['tags']=html_entity_decode(str_replace(',',' ',$value),ENT_QUOTES,'UTF-8'); - } - if ($link['url']!='') - { - if ($private==1) $link['private']=1; - $dblink = $LINKSDB->getLinkFromUrl($link['url']); // See if the link is already in database. - if ($dblink==false) - { // Link not in database, let's import it... - if (empty($raw_add_date)) $raw_add_date=time(); // In case of shitty bookmark file with no ADD_DATE - - // Make sure date/time is not already used by another link. - // (Some bookmark files have several different links with the same ADD_DATE) - // We increment date by 1 second until we find a date which is not used in db. - // (so that links that have the same date/time are more or less kept grouped by date, but do not conflict.) - while (!empty($LINKSDB[date('Ymd_His',$raw_add_date)])) { $raw_add_date++; }// Yes, I know it's ugly. - $link['linkdate']=date('Ymd_His',$raw_add_date); - $LINKSDB[$link['linkdate']] = $link; - $import_count++; - } - else // link already present in database. - { - if ($overwrite) - { // If overwrite is required, we import link data, except date/time. - $link['linkdate']=$dblink['linkdate']; - $LINKSDB[$link['linkdate']] = $link; - $import_count++; - } - } + // Split plugins into 2 arrays: ordered enabled plugins and disabled. + $enabledPlugins = array_filter($pluginMeta, function($v) { return $v['order'] !== false; }); + // Load parameters. + $enabledPlugins = load_plugin_parameter_values($enabledPlugins, $conf->get('plugins', array())); + uasort( + $enabledPlugins, + function($a, $b) { return $a['order'] - $b['order']; } + ); + $disabledPlugins = array_filter($pluginMeta, function($v) { return $v['order'] === false; }); + + $PAGE->assign('enabledPlugins', $enabledPlugins); + $PAGE->assign('disabledPlugins', $disabledPlugins); + $PAGE->renderPage('pluginsadmin'); + exit; + } + // Plugin administration form action + if ($targetPage == Router::$PAGE_SAVE_PLUGINSADMIN) { + try { + if (isset($_POST['parameters_form'])) { + unset($_POST['parameters_form']); + foreach ($_POST as $param => $value) { + $conf->set('plugins.'. $param, escape($value)); } } + else { + $conf->set('general.enabled_plugins', save_plugin_config($_POST)); + } + $conf->write(isLoggedIn()); } - $LINKSDB->savedb(); - - echo ''; - } - else - { - echo ''; + catch (Exception $e) { + error_log( + 'ERROR while saving plugin configuration:.' . PHP_EOL . + $e->getMessage() + ); + + // TODO: do not handle exceptions/errors in JS. + echo ''; + exit; + } + header('Location: ?do='. Router::$PAGE_PLUGINSADMIN); + exit; } + + // -------- Otherwise, simply display search form and links: + showLinkList($PAGE, $LINKSDB, $conf, $pluginManager); + exit; } -// ----------------------------------------------------------------------------------------------- -// Template for the list of links (
'; + echo 'It currently points to '.session_save_path().'
'; + echo 'Check that the hostname used to access Shaarli contains a dot. On some browsers, accessing your server via a hostname like \'localhost\' or any custom hostname without a dot causes cookie storage to fail. We recommend accessing your server via it\'s IP address or Fully Qualified Domain Name.
'; + echo '
Click to try again.'; die; } if (!isset($_SESSION['session_tested'])) { // Step 1 : Try to store data in session and reload page. $_SESSION['session_tested'] = 'Working'; // Try to set a variable in session. - header('Location: '.indexUrl().'?test_session'); // Redirect to check stored data. + header('Location: '.index_url($_SERVER).'?test_session'); // Redirect to check stored data. } if (isset($_GET['test_session'])) - { // Step 3: Sessions are ok. Remove test parameter from URL. - header('Location: '.indexUrl()); + { // Step 3: Sessions are OK. Remove test parameter from URL. + header('Location: '.index_url($_SERVER)); } if (!empty($_POST['setlogin']) && !empty($_POST['setpassword'])) { $tz = 'UTC'; - if (!empty($_POST['continent']) && !empty($_POST['city'])) - if (isTZvalid($_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()) : $_POST['title'] ); - writeConfig(); - echo ''; + if (!empty($_POST['continent']) && !empty($_POST['city']) + && isTimeZoneValid($_POST['continent'], $_POST['city']) + ) { + $tz = $_POST['continent'].'/'.$_POST['city']; + } + $conf->set('general.timezone', $tz); + $login = $_POST['setlogin']; + $conf->set('credentials.login', $login); + $salt = sha1(uniqid('', true) .'_'. mt_rand()); + $conf->set('credentials.salt', $salt); + $conf->set('credentials.hash', sha1($_POST['setpassword'] . $login . $salt)); + if (!empty($_POST['title'])) { + $conf->set('general.title', escape($_POST['title'])); + } else { + $conf->set('general.title', 'Shared links on '.escape(index_url($_SERVER))); + } + $conf->set('updates.check_updates', !empty($_POST['updateCheck'])); + try { + // Everything is ok, let's create config file. + $conf->write(isLoggedIn()); + } + catch(Exception $e) { + error_log( + 'ERROR while writing config file after installation.' . PHP_EOL . + $e->getMessage() + ); + + // TODO: do not handle exceptions/errors in JS. + echo ''; + exit; + } + echo ''; exit; } // Display config form: - list($timezone_form,$timezone_js) = templateTZform(); - $timezone_html=''; if ($timezone_form!='') $timezone_html='Timezone:'.$timezone_form.''; - - $PAGE = new pageBuilder; + list($timezone_form, $timezone_js) = generateTimeZoneForm(); + $timezone_html = ''; + if ($timezone_form != '') { + $timezone_html = 'Timezone:'.$timezone_form.''; + } + + $PAGE = new PageBuilder($conf); $PAGE->assign('timezone_html',$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,$js) = templateTZform('Europe/Paris'); // Europe/Paris pre-selected. -// Returns array('','') if server does not support timezones list. (eg. php 5.1 on free.fr) -function templateTZform($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 forme "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].=''; - } - } - $continents_html = ''; - $continents = array_keys($continents); - foreach($continents as $continent) - $continents_html.=''; - $cities_html = $cities[$pcontinent]; - $timezone_form = "Continent:

"; - $timezone_form .= "City:

"; - $timezone_js = "" ; - return array($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($tz, timezone_identifiers_list())) // it's a valid timezone ? - return true; - } - return false; -} - - -// Webservices (for use with jQuery/jQueryUI) -// eg. index.php?ws=tags&term=minecr -function processWS() -{ - if (empty($_GET['ws']) || empty($_GET['term'])) return; - $term = $_GET['term']; - $LINKSDB=new linkdb(isLoggedIn() || $GLOBALS['config']['OPEN_SHAARLI']); // Read links from database (and filter private links if used it not logged in). - header('Content-Type: application/json; charset=utf-8'); - - // Search in tags (case insentitive, cumulative search) - if ($_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 sentitive, 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 $GLOBALS to be set (login,hash,salt,title). -// If the config file cannot be saved, an error message is dislayed and the user is redirected to "Tools" menu. -// (otherwise, the function simply returns.) -function writeConfig() -{ - if (is_file($GLOBALS['config']['CONFIG_FILE']) && !isLoggedIn()) die('You are not authorized to alter config.'); // Only logged in user can alter config. - if (empty($GLOBALS['redirector'])) $GLOBALS['redirector']=''; - if (empty($GLOBALS['disablesessionprotection'])) $GLOBALS['disablesessionprotection']=false; - $config=''; - if (!file_put_contents($GLOBALS['config']['CONFIG_FILE'],$config) || strcmp(file_get_contents($GLOBALS['config']['CONFIG_FILE']),$config)!=0) - { - echo ''; - 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 (eg. 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 (eg. 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() +/** + * 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. + * + * @param ConfigManager $conf Configuration Manager instance, + */ +function genThumbnail($conf) { // 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 !'); + $sign = hash_hmac('sha256', $_GET['url'], $conf->get('credentials.salt')); + if ($sign!=$_GET['hmac']) die('Naughty boy!'); + $cacheDir = $conf->get('resource.thumbnails_cache', 'cache'); // 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)) + if (is_file($cacheDir .'/'. $thumbname)) { // We have the thumbnail, just serve it: header('Content-Type: image/jpeg'); - echo file_get_contents($GLOBALS['config']['CACHEDIR'].'/'.$thumbname); + echo file_get_contents($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)) + if (is_file($cacheDir .'/'. $blankname)) { header('Content-Type: image/gif'); - echo file_get_contents($GLOBALS['config']['CACHEDIR'].'/'.$blankname); + echo file_get_contents($cacheDir .'/'. $blankname); return; } @@ -2185,23 +2017,24 @@ function genThumbnail() if ($domain=='flickr.com' || endsWith($domain,'.flickr.com')) { - // Crude replacement to handle new Flickr domain policy (They prefer www. now) + // 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. eg. http://farm1.staticflickr.com/5/5921913_ac83ed27bd_o.jpg + 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) + else // This is a flickr page (html) { - list($httpstatus,$headers,$data) = getHTTP($url,20); // Get the flickr html page. - if (strpos($httpstatus,'200 OK')!==false) + // Get the flickr html page. + list($headers, $content) = get_http_response($url, 20); + if (strpos($headers[0], '200 OK') !== false) { - // Flickr now nicely provides the URL of the thumbnail in each flickr page. - preg_match('! if ($imageurl=='') { - preg_match('! tag on that page // http://www.ted.com/talks/mikko_hypponen_fighting_viruses_defending_the_net.html // - list($httpstatus,$headers,$data) = getHTTP($url,5); - if (strpos($httpstatus,'200 OK')!==false) - { + list($headers, $content) = get_http_response($url, 5); + if (strpos($headers[0], '200 OK') !== false) { // Extract the link to the thumbnail - preg_match('!link rel="image_src" href="(http://images.ted.com/images/ted/.+_\d+x\d+\.jpg)"!',$data,$matches); + preg_match('!link rel="image_src" href="(http://images.ted.com/images/ted/.+_\d+x\d+\.jpg)"!', $content, $matches); if (!empty($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,$data); // Save image to cache. + // No control on image size, so wait long enough + list($headers, $content) = get_http_response($imageurl, 20); + if (strpos($headers[0], '200 OK') !== false) { + $filepath = $cacheDir .'/'. $thumbname; + file_put_contents($filepath, $content); // Save image to cache. if (resizeImage($filepath)) { header('Content-Type: image/jpeg'); @@ -2278,25 +2110,25 @@ function genThumbnail() } } } - + elseif ($domain=='xkcd.com' || endsWith($domain,'.xkcd.com')) { // There is no thumbnail available for xkcd comics, so download the whole image and resize it. // http://xkcd.com/327/ // <BLABLA> - list($httpstatus,$headers,$data) = getHTTP($url,5); - if (strpos($httpstatus,'200 OK')!==false) - { + list($headers, $content) = get_http_response($url, 5); + if (strpos($headers[0], '200 OK') !== false) { // Extract the link to the thumbnail - preg_match('! \ No newline at end of file +renderPage($conf, $pluginManager);