<?php
-// Shaarli 0.0.11 beta - Shaare your links...
+// Shaarli 0.0.38 beta - Shaare your links...
// The personal, minimalist, super-fast, no-database delicious clone. By sebsauvage.net
// http://sebsauvage.net/wiki/doku.php?id=php:shaarli
// Licence: http://www.opensource.org/licenses/zlib-license.php
// Requires: php 5.1.x
-
+// (but autocomplete fields will only work if you have php 5.2.x)
// -----------------------------------------------------------------------------------------------
// User config:
-define('DATADIR','data'); // Data subdirectory
-define('CONFIG_FILE',DATADIR.'/config.php'); // Configuration file (user login/password)
-define('DATASTORE',DATADIR.'/datastore.php'); // Data storage file.
-define('LINKS_PER_PAGE',20); // Default links per page.
-define('IPBANS_FILENAME',DATADIR.'/ipbans.php'); // File storage for failures and bans.
-define('BAN_AFTER',4); // Ban IP after this many failures.
-define('BAN_DURATION',1800); // Ban duration for IP address after login failures (in seconds) (1800 sec. = 30 minutes)
-if (get_magic_quotes_gpc())
-{
- header('Content-Type: text/plain; charset=utf-8');
- echo "ERROR: magic_quotes_gpc is ON in your php config. This is *BAD*. You *MUST* disable it, either by changing the value in php.ini,\n";
- echo "or by adding the following line in .htaccess: php_flag magic_quotes_gpc Off"; exit;
-}
-checkphpversion();
-
+$GLOBALS['config']['DATADIR'] = 'data'; // Data subdirectory
+$GLOBALS['config']['CONFIG_FILE'] = $GLOBALS['config']['DATADIR'].'/config.php'; // Configuration file (user login/password)
+$GLOBALS['config']['DATASTORE'] = $GLOBALS['config']['DATADIR'].'/datastore.php'; // Data storage file.
+$GLOBALS['config']['LINKS_PER_PAGE'] = 20; // Default links per page.
+$GLOBALS['config']['IPBANS_FILENAME'] = $GLOBALS['config']['DATADIR'].'/ipbans.php'; // File storage for failures and bans.
+$GLOBALS['config']['BAN_AFTER'] = 4; // Ban IP after this many failures.
+$GLOBALS['config']['BAN_DURATION'] = 1800; // Ban duration for IP address after login failures (in seconds) (1800 sec. = 30 minutes)
+$GLOBALS['config']['OPEN_SHAARLI'] = false; // If true, anyone can add/edit/delete links without having to login
+$GLOBALS['config']['HIDE_TIMESTAMPS'] = false; // If true, the moment when links were saved are not shown to users that are not logged in.
+$GLOBALS['config']['ENABLE_THUMBNAILS'] = true; // Enable thumbnails in links.
+$GLOBALS['config']['CACHEDIR'] = 'cache'; // Cache directory for thumbnails for SLOW services (like flickr)
+$GLOBALS['config']['ENABLE_LOCALCACHE'] = true; // Enable Shaarli to store thumbnail in a local cache. Disable to reduce webspace usage.
+$GLOBALS['config']['PUBSUBHUB_URL'] = ''; // PubSubHubbub support. Put an empty string to disable, or put your hub url here to enable.
+ // Note: You must have publisher.php in the same directory as Shaarli index.php
// -----------------------------------------------------------------------------------------------
// Program config (touch at your own risks !)
+$GLOBALS['config']['UPDATECHECK_FILENAME'] = $GLOBALS['config']['DATADIR'].'/lastupdatecheck.txt'; // For updates check of Shaarli.
+$GLOBALS['config']['UPDATECHECK_INTERVAL'] = 86400 ; // Updates check frequency for Shaarli. 86400 seconds=24 hours
+ini_set('max_input_time','60'); // High execution time in case of problematic imports/exports.
+ini_set('memory_limit', '128M'); // Try to set max upload file size and read (May not work on some hosts).
+ini_set('post_max_size', '16M');
+ini_set('upload_max_filesize', '16M');
+define('shaarli_version','0.0.38 beta');
+define('PHPPREFIX','<?php /* '); // Prefix to encapsulate data in php code.
+define('PHPSUFFIX',' */ ?>'); // Suffix to encapsulate data in php code.
+checkphpversion();
error_reporting(E_ALL^E_WARNING); // See all error except warnings.
//error_reporting(-1); // See all errors (for debugging only)
-$STARTTIME = microtime(true); // Measure page execution time.
+
+include "inc/rain.tpl.class.php"; //include Rain TPL
+raintpl::$tpl_dir = "tpl/"; // template directory
+raintpl::$cache_dir = "tmp/"; // cache directory
+
ob_start();
+
+// Optionnal config file.
+if (is_file($GLOBALS['config']['DATADIR'].'/options.php')) require($GLOBALS['config']['DATADIR'].'/options.php');
+
+// In case stupid admin has left magic_quotes enabled in php.ini:
+if (get_magic_quotes_gpc())
+{
+ function stripslashes_deep($value) { $value = is_array($value) ? array_map('stripslashes_deep', $value) : stripslashes($value); return $value; }
+ $_POST = array_map('stripslashes_deep', $_POST);
+ $_GET = array_map('stripslashes_deep', $_GET);
+ $_COOKIE = array_map('stripslashes_deep', $_COOKIE);
+}
// Prevent caching: (yes, it's ugly)
header("Last-Modified: " . gmdate("D, d M Y H:i:s") . " GMT");
header("Cache-Control: no-store, no-cache, must-revalidate");
header("Cache-Control: post-check=0, pre-check=0", false);
header("Pragma: no-cache");
-define('shaarli_version','0.0.11 beta');
-if (!is_dir(DATADIR)) { mkdir(DATADIR,0705); chmod(DATADIR,0705); }
-if (!is_file(DATADIR.'/.htaccess')) { file_put_contents(DATADIR.'/.htaccess',"Allow from none\nDeny from all\n"); } // Protect data files.
-if (!is_file(CONFIG_FILE)) install();
-require CONFIG_FILE; // Read login/password hash into $GLOBALS.
-ini_set('max_input_time','60'); // High execution time in case of problematic imports/exports.
-ini_set('memory_limit', '128M'); // Try to set max upload file size and read (May not work on some hosts).
-ini_set('post_max_size', '16M');
-ini_set('upload_max_filesize', '16M');
-define('PHPPREFIX','<?php /* '); // Prefix to encapsulate data in php code.
-define('PHPSUFFIX',' */ ?>'); // Suffix to encapsulate data in php code.
+if (!is_dir($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.
+}
+if (!is_file($GLOBALS['config']['CONFIG_FILE'])) install();
+require $GLOBALS['config']['CONFIG_FILE']; // Read login/password hash into $GLOBALS.
+// Small protection against dodgy config files:
+if (empty($GLOBALS['title'])) $GLOBALS['title']='Shared links on '.htmlspecialchars(indexUrl());
+if (empty($GLOBALS['timezone'])) $GLOBALS['timezone']=date_default_timezone_get();
autoLocale(); // Sniff browser language and set date format accordingly.
header('Content-Type: text/html; charset=utf-8'); // We use UTF-8 for proper international characters handling.
$LINKSDB=false;
// Check php version
function checkphpversion()
{
- $ver=phpversion();
- if (preg_match('!(\d+)\.(\d+)\.(\d+)!',$ver,$matches)) // (because phpversion() sometimes returns strings like "5.2.4-2ubuntu5.2")
+ if (version_compare(PHP_VERSION, '5.1.0') < 0)
+ {
+ header('Content-Type: text/plain; charset=utf-8');
+ echo 'Your server supports php '.PHP_VERSION.'. Shaarli requires at last php 5.1.0, and thus cannot run. Sorry.';
+ exit;
+ }
+}
+
+// Checks if an update is available for Shaarli.
+// (at most once a day, and only for registered user.)
+// Output: '' = no new version.
+// other= the available version.
+function checkUpdate()
+{
+ if (!isLoggedIn()) return ''; // Do not check versions for visitors.
+
+ // Get latest version number at most once a day.
+ if (!is_file($GLOBALS['config']['UPDATECHECK_FILENAME']) || (filemtime($GLOBALS['config']['UPDATECHECK_FILENAME'])<time()-($GLOBALS['config']['UPDATECHECK_INTERVAL'])))
{
- list($match,$major,$minor,$release) = $matches;
- if ($major>=5 && $minor>=1) return; // 5.1.x or higher is ok.
- die('Your server supports php '.$ver.'. Shaarli requires at last php 5.1, and thus cannot run. Sorry.');
+ $version=shaarli_version;
+ list($httpstatus,$headers,$data) = getHTTP('http://sebsauvage.net/files/shaarli_version.txt',2);
+ if (strpos($httpstatus,'200 OK')!==false) $version=$data;
+ // If failed, nevermind. We don't want to bother the user with that.
+ file_put_contents($GLOBALS['config']['UPDATECHECK_FILENAME'],$version); // touch file date
}
- // if cannot check php version... well, at your own risks.
+ // Compare versions:
+ $newestversion=file_get_contents($GLOBALS['config']['UPDATECHECK_FILENAME']);
+ if (version_compare($newestversion,shaarli_version)==1) return $newestversion;
+ return '';
}
// -----------------------------------------------------------------------------------------------
// Log to text file
function logm($message)
{
- if (!file_exists(DATADIR.'/log.txt')) {$logFile = fopen(DATADIR.'/log.txt','w'); }
- else { $logFile = fopen(DATADIR.'/log.txt','a'); }
- fwrite($logFile,strval(date('Y/m/d_H:i:s')).' - '.$_SERVER["REMOTE_ADDR"].' - '.strval($message)."\n");
- fclose($logFile);
+ $t = strval(date('Y/m/d_H:i:s')).' - '.$_SERVER["REMOTE_ADDR"].' - '.strval($message)."\n";
+ file_put_contents($GLOBALS['config']['DATADIR'].'/log.txt',$t,FILE_APPEND);
+}
+
+// Same as nl2br(), but escapes < and >
+function nl2br_escaped($html)
+{
+ return str_replace('>','>',str_replace('<','<',nl2br($html)));
+}
+
+/* Returns the small hash of a string
+ eg. smallHash('20111006_131924') --> yZH23w
+ Small hashes:
+ - are unique (well, as unique as crc32, at last)
+ - are always 6 characters long.
+ - only use the following characters: a-z A-Z 0-9 - _ @
+ - are NOT cryptographically secure (they CAN be forged)
+ In Shaarli, they are used as a tinyurl-like link to individual entries.
+*/
+function smallHash($text)
+{
+ $t = rtrim(base64_encode(hash('crc32',$text,true)),'=');
+ $t = str_replace('+','-',$t); // Get rid of characters which need encoding in URLs.
+ $t = str_replace('/','_',$t);
+ $t = str_replace('=','@',$t);
+ return $t;
+}
+
+// In a string, converts urls to clickable links.
+// Function inspired from http://www.php.net/manual/en/function.preg-replace.php#85722
+function text2clickable($url)
+{
+ $redir = empty($GLOBALS['redirector']) ? '' : $GLOBALS['redirector'];
+ return preg_replace('!(((?:https?|ftp|file)://|apt:)\S+[[:alnum:]]/?)!si','<a href="'.$redir.'$1" rel="nofollow">$1</a>',$url);
}
+// This function inserts where relevant so that multiple spaces are properly displayed in HTML
+// even in the absence of <pre> (This is used in description to keep text formatting)
+function keepMultipleSpaces($text)
+{
+ return str_replace(' ',' ',$text);
+
+}
// ------------------------------------------------------------------------------------------
// Sniff browser language to display dates in the right format automatically.
// (Note that is may not work on your server if the corresponding local is not installed.)
function autoLocale()
-{
+{
$loc='en_US'; // Default if browser does not send HTTP_ACCEPT_LANGUAGE
if (isset($_SERVER['HTTP_ACCEPT_LANGUAGE'])) // 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.)
setlocale(LC_TIME,$loc); // LC_TIME = Set local for date/time format only.
}
+// ------------------------------------------------------------------------------------------
+// PubSubHubbub protocol support (if enabled) [UNTESTED]
+// (Source: http://aldarone.fr/les-flux-rss-shaarli-et-pubsubhubbub/ )
+if (!empty($GLOBALS['config']['PUBSUBHUB_URL'])) include './publisher.php';
+function pubsubhub()
+{
+ if (!empty($GLOBALS['config']['PUBSUBHUB_URL']))
+ {
+ $p = new Publisher($GLOBALS['config']['PUBSUBHUB_URL']);
+ $topic_url = array (
+ indexUrl().'?do=atom',
+ indexUrl().'?do=rss'
+ );
+ $p->publish_update($topic_url);
+ }
+}
+
// ------------------------------------------------------------------------------------------
// Session management
define('INACTIVITY_TIMEOUT',3600); // (in seconds). If the user does not access any page within this time, his/her session is considered expired.
}
// Check that user/password is correct.
-function check_auth($login,$password)
+function check_auth($login,$password)
{
$hash = sha1($password.$login.$GLOBALS['salt']);
if ($login==$GLOBALS['login'] && $hash==$GLOBALS['hash'])
// Returns true if the user is logged in.
function isLoggedIn()
-{
+{
+ if ($GLOBALS['config']['OPEN_SHAARLI']) return true;
+
// If session does not exist on server side, or IP address has changed, or session has expired, logout.
if (empty($_SESSION['uid']) || $_SESSION['ip']!=allIPs() || time()>=$_SESSION['expires_on'])
{
logout();
return false;
}
- $_SESSION['expires_on']=time()+INACTIVITY_TIMEOUT; // User accessed a page : Update his/her session expiration date.
+ if (!empty($_SESSION['longlastingsession'])) $_SESSION['expires_on']=time()+$_SESSION['longlastingsession']; // In case of "Stay signed in" checked.
+ else $_SESSION['expires_on']=time()+INACTIVITY_TIMEOUT; // Standard session expiration date.
+
return true;
}
// Force logout.
-function logout() { unset($_SESSION['uid']); unset($_SESSION['ip']); unset($_SESSION['username']);}
+function logout() { if (isset($_SESSION)) { unset($_SESSION['uid']); unset($_SESSION['ip']); unset($_SESSION['username']);} }
// ------------------------------------------------------------------------------------------
// Brute force protection system
// Several consecutive failed logins will ban the IP address for 30 minutes.
-if (!is_file(IPBANS_FILENAME)) file_put_contents(IPBANS_FILENAME, "<?php\n\$GLOBALS['IPBANS']=".var_export(array('FAILURES'=>array(),'BANS'=>array()),true).";\n?>");
-include IPBANS_FILENAME;
+if (!is_file($GLOBALS['config']['IPBANS_FILENAME'])) file_put_contents($GLOBALS['config']['IPBANS_FILENAME'], "<?php\n\$GLOBALS['IPBANS']=".var_export(array('FAILURES'=>array(),'BANS'=>array()),true).";\n?>");
+include $GLOBALS['config']['IPBANS_FILENAME'];
// Signal a failed login. Will ban the IP if too many failures:
function ban_loginFailed()
{
$ip=$_SERVER["REMOTE_ADDR"]; $gb=$GLOBALS['IPBANS'];
if (!isset($gb['FAILURES'][$ip])) $gb['FAILURES'][$ip]=0;
$gb['FAILURES'][$ip]++;
- if ($gb['FAILURES'][$ip]>(BAN_AFTER-1))
+ if ($gb['FAILURES'][$ip]>($GLOBALS['config']['BAN_AFTER']-1))
{
- $gb['BANS'][$ip]=time()+BAN_DURATION;
+ $gb['BANS'][$ip]=time()+$GLOBALS['config']['BAN_DURATION'];
logm('IP address banned from login');
}
$GLOBALS['IPBANS'] = $gb;
- file_put_contents(IPBANS_FILENAME, "<?php\n\$GLOBALS['IPBANS']=".var_export($gb,true).";\n?>");
+ file_put_contents($GLOBALS['config']['IPBANS_FILENAME'], "<?php\n\$GLOBALS['IPBANS']=".var_export($gb,true).";\n?>");
}
// Signals a successful login. Resets failed login counter.
$ip=$_SERVER["REMOTE_ADDR"]; $gb=$GLOBALS['IPBANS'];
unset($gb['FAILURES'][$ip]); unset($gb['BANS'][$ip]);
$GLOBALS['IPBANS'] = $gb;
- file_put_contents(IPBANS_FILENAME, "<?php\n\$GLOBALS['IPBANS']=".var_export($gb,true).";\n?>");
+ file_put_contents($GLOBALS['config']['IPBANS_FILENAME'], "<?php\n\$GLOBALS['IPBANS']=".var_export($gb,true).";\n?>");
}
// Checks if the user CAN login. If 'true', the user can try to login.
if (isset($gb['BANS'][$ip]))
{
// User is banned. Check if the ban has expired:
- if ($gb['BANS'][$ip]<=time())
+ if ($gb['BANS'][$ip]<=time())
{ // Ban expired, user can try to login again.
logm('Ban lifted.');
unset($gb['FAILURES'][$ip]); unset($gb['BANS'][$ip]);
- file_put_contents(IPBANS_FILENAME, "<?php\n\$GLOBALS['IPBANS']=".var_export($gb,true).";\n?>");
+ file_put_contents($GLOBALS['config']['IPBANS_FILENAME'], "<?php\n\$GLOBALS['IPBANS']=".var_export($gb,true).";\n?>");
return true; // Ban has expired, user can login.
}
return false; // User is banned.
if (isset($_POST['password']) && tokenOk($_POST['token']) && (check_auth($_POST['login'], $_POST['password'])))
{ // Login/password is ok.
ban_loginOk();
+ // If user wants to keep the session cookie even after the browser closes:
+ if (!empty($_POST['longlastingsession']))
+ {
+ $_SESSION['longlastingsession']=31536000; // (31536000 seconds = 1 year)
+ $_SESSION['expires_on']=time()+$_SESSION['longlastingsession']; // Set session expiration on server-side.
+ session_set_cookie_params($_SESSION['longlastingsession']); // Set session cookie expiration on client side
+ session_regenerate_id(true); // Send cookie with new expiration date to browser.
+ }
+ else // Standard session expiration (=when browser closes)
+ {
+ session_set_cookie_params(0); // 0 means "When browser closes"
+ session_regenerate_id(true);
+ }
// Optional redirect after login:
- if (isset($_GET['post'])) { header('Location: ?post='.urlencode($_GET['post']).(!empty($_GET['source'])?'&source='.urlencode($_GET['source']):'')); exit; }
- if (isset($_POST['returnurl'])) { header('Location: '.$_POST['returnurl']); exit; }
+ if (isset($_GET['post'])) { header('Location: ?post='.urlencode($_GET['post']).(!empty($_GET['title'])?'&title='.urlencode($_GET['title']):'').(!empty($_GET['source'])?'&source='.urlencode($_GET['source']):'')); exit; }
+ if (isset($_POST['returnurl']))
+ {
+ if (endsWith($_POST['returnurl'],'?do=login')) { header('Location: ?'); exit; } // Prevent loops over login screen.
+ header('Location: '.$_POST['returnurl']); exit;
+ }
header('Location: ?'); exit;
}
else
{
- ban_loginFailed();
+ ban_loginFailed();
echo '<script language="JavaScript">alert("Wrong login/password.");document.location=\'?do=login\';</script>'; // Redirect to login screen.
- exit;
+ exit;
}
-}
+}
// ------------------------------------------------------------------------------------------
// Misc utility functions:
// You can append $_SERVER['SCRIPT_NAME'] to get the current script URL.
function serverUrl()
{
- $serverport = ($_SERVER["SERVER_PORT"]!='80' ? ':'.$_SERVER["SERVER_PORT"] : '');
- return 'http'.(!empty($_SERVER['HTTPS'])?'s':'').'://'.$_SERVER["SERVER_NAME"].$serverport;
+ $https = (!empty($_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"].$serverport;
+}
+
+// Returns the absolute URL of current script.
+function indexUrl()
+{
+ return serverUrl() . ($_SERVER["SCRIPT_NAME"] == '/index.php' ? '/' : $_SERVER["SCRIPT_NAME"]);
}
// Convert post_max_size/upload_max_filesize (eg.'16M') parameters to bytes.
-function return_bytes($val)
+function return_bytes($val)
{
$val = trim($val); $last=strtolower($val[strlen($val)-1]);
- switch($last)
+ switch($last)
{
case 'g': $val *= 1024;
case 'm': $val *= 1024;
return date('r',linkdate2timestamp($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 chose according to locale/languages sniffed from browser headers (see autoLocale()). */
+ 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.
}
// Parse HTTP response headers and return an associative array.
-function http_parse_headers( $headers )
+function http_parse_headers_shaarli( $headers )
{
$res=array();
foreach($headers as $header)
{
$i = strpos($header,': ');
- if ($i)
+ if ($i!==false)
{
$key=substr($header,0,$i);
$value=substr($header,$i+2,strlen($header)-$i-2);
[1] = associative array containing HTTP response headers (eg. echo getHTTP($url)[1]['Content-Type'])
[2] = data
Example: list($httpstatus,$headers,$data) = getHTTP('http://sebauvage.net/');
- if (strpos($httpstatus,'200 OK'))
+ if (strpos($httpstatus,'200 OK')!==false)
echo 'Data type: '.htmlspecialchars($headers['Content-Type']);
else
echo 'There was an error: '.htmlspecialchars($httpstatus)
{
$options = array('http'=>array('method'=>'GET','timeout' => $timeout)); // Force network timeout
$context = stream_context_create($options);
- $data=file_get_contents($url,false,$context,-1, 2000000); // We download at most 2 Mb from source.
+ $data=file_get_contents($url,false,$context,-1, 4000000); // We download at most 4 Mb from source.
if (!$data) { $lasterror=error_get_last(); return array($lasterror['message'],array(),''); }
$httpStatus=$http_response_header[0]; // eg. "HTTP/1.1 200 OK"
- $responseHeaders=http_parse_headers($http_response_header);
+ $responseHeaders=http_parse_headers_shaarli($http_response_header);
return array($httpStatus,$responseHeaders,$data);
}
catch (Exception $e) // getHTTP *can* fail silentely (we don't care if the title cannot be fetched)
// Extract title from an HTML document.
// (Returns an empty string if not found.)
-function html_extract_title($html)
+function html_extract_title($html)
{
- return preg_match('!<title>(.*?)</title>!i', $html, $matches) ? $matches[1] : '';
+ return preg_match('!<title>(.*?)</title>!is', $html, $matches) ? trim(str_replace("\n",' ', $matches[1])) : '' ;
}
// ------------------------------------------------------------------------------------------
{
$rnd = sha1(uniqid('',true).'_'.mt_rand()); // We generate a random string.
$_SESSION['tokens'][$rnd]=1; // Store it on the server side.
- return $rnd;
+ return $rnd;
}
// Tells if a token is ok. Using this function will destroy the token.
-// true=token is ok.
+// true=token is ok.
function tokenOk($token)
{
if (isset($_SESSION['tokens'][$token]))
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()
+ {
+ global $LINKSDB;
+ $this->tpl = new RainTPL;
+ $this->tpl->assign('newversion',checkUpdate());
+ $this->tpl->assign('linkcount',count($LINKSDB));
+ $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.
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)
$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); }
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;
+ $this->urls[$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]);
+ $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
// ---- Misc methods
private function checkdb() // Check if db directory and file exists.
{
- if (!file_exists(DATASTORE)) // Create a dummy database for example.
+ 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']] = $link;
- file_put_contents(DATASTORE, PHPPREFIX.base64_encode(gzdeflate(serialize($this->links))).PHPSUFFIX); // Write database to disk
- }
+ $this->links[$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()
+ private function readdb()
{
// Read data
- $this->links=(file_exists(DATASTORE) ? unserialize(gzinflate(base64_decode(substr(file_get_contents(DATASTORE),strlen(PHPPREFIX),-strlen(PHPSUFFIX))))) : array() );
-
+ $this->links=(file_exists($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)
{
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']]=$link['linkdate']; }
}
- // Save database from memory to disk.
- public function savedb()
+ // Save database from memory to disk.
+ public function savedb()
{
if (!$this->loggedin) die('You are not authorized to change the database.');
- file_put_contents(DATASTORE, PHPPREFIX.base64_encode(gzdeflate(serialize($this->links))).PHPSUFFIX);
+ file_put_contents($GLOBALS['config']['DATASTORE'], PHPPREFIX.base64_encode(gzdeflate(serialize($this->links))).PHPSUFFIX);
}
-
+
// Returns the link for a given URL (if it exists). false it does not exist.
- public function getLinkFromUrl($url)
+ 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->filterTags('hollandais'));
- public function filterFulltext($searchterms)
+ // eg. print_r($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']),$s) || strpos(strtolower($l['description']),$s) || strpos(strtolower($l['url']),$s) || strpos(strtolower($l['tags']),$s);
+ {
+ $found= (strpos(strtolower($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($tags)
+ public function filterTags($tags,$casesensitive=false)
{
- $t = str_replace(',',' ',strtolower($tags));
+ $t = str_replace(',',' ',($casesensitive?$tags:strtolower($tags)));
$searchtags=explode(' ',$t);
$filtered=array();
foreach($this->links as $l)
- {
- $linktags = explode(' ',strtolower($l['tags']));
+ {
+ $linktags = explode(' ',($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;
+ }
}
// ------------------------------------------------------------------------------------------
function showRSS()
{
global $LINKSDB;
- header('Content-Type: application/xhtml+xml; charset=utf-8');
- $pageaddr=htmlspecialchars(serverUrl().$_SERVER["SCRIPT_NAME"]);
+
+ // 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;
+
+ header('Content-Type: application/rss+xml; charset=utf-8');
+ $pageaddr=htmlspecialchars(indexUrl());
echo '<?xml version="1.0" encoding="UTF-8"?><rss version="2.0" xmlns:content="http://purl.org/rss/1.0/modules/content/">';
- echo '<channel><title>Shared links on '.$pageaddr.'</title><link>'.$pageaddr.'</link>';
- echo '<description>Shared links</description><language></language><copyright>'.$pageaddr.'</copyright>'."\n\n";
+ echo '<channel><title>'.htmlspecialchars($GLOBALS['title']).'</title><link>'.$pageaddr.'</link>';
+ echo '<description>Shared links</description><language>en-en</language><copyright>'.$pageaddr.'</copyright>'."\n\n";
+ if (!empty($GLOBALS['config']['PUBSUBHUB_URL']))
+ {
+ echo '<!-- PubSubHubbub Discovery -->';
+ echo '<link rel="hub" href="'.htmlspecialchars($GLOBALS['config']['PUBSUBHUB_URL']).'" xmlns="http://www.w3.org/2005/Atom" />';
+ echo '<link rel="self" href="'.htmlspecialchars($pageaddr).'?do=rss" xmlns="http://www.w3.org/2005/Atom" />';
+ echo '<!-- End Of PubSubHubbub Discovery -->';
+ }
$i=0;
- $keys=array(); foreach($LINKSDB as $key=>$value) { $keys[]=$key; } // No, I can't use array_keys().
+ $keys=array(); foreach($linksToDisplay as $key=>$value) { $keys[]=$key; } // No, I can't use array_keys().
while ($i<50 && $i<count($keys))
{
- $link = $LINKSDB[$keys[$i]];
+ $link = $linksToDisplay[$keys[$i]];
+ $guid = $pageaddr.'?'.smallHash($link['linkdate']);
$rfc822date = linkdate2rfc822($link['linkdate']);
- echo '<item><title>'.htmlspecialchars($link['title']).'</title><guid>'.htmlspecialchars($link['url']).'</guid><link>'.htmlspecialchars($link['url']).'</link><pubDate>'.htmlspecialchars($rfc822date).'</pubDate>';
- echo '<description><![CDATA['.htmlspecialchars($link['description']).']]></description></item>'."\n";
+ $absurl = htmlspecialchars($link['url']);
+ if (startsWith($absurl,'?')) $absurl=$pageaddr.$absurl; // make permalink URL absolute
+ echo '<item><title>'.htmlspecialchars($link['title']).'</title><guid>'.$guid.'</guid><link>'.$absurl.'</link>';
+ if (!$GLOBALS['config']['HIDE_TIMESTAMPS'] || isLoggedIn()) echo '<pubDate>'.htmlspecialchars($rfc822date)."</pubDate>\n";
+ if ($link['tags']!='') // Adding tags to each RSS entry (as mentioned in RSS specification)
+ {
+ foreach(explode(' ',$link['tags']) as $tag) { echo '<category domain="'.htmlspecialchars($pageaddr).'">'.htmlspecialchars($tag).'</category>'."\n"; }
+ }
+ echo '<description><![CDATA['.nl2br(keepMultipleSpaces(text2clickable(htmlspecialchars($link['description'])))).']]></description>'."\n</item>\n";
$i++;
}
echo '</channel></rss>';
}
// ------------------------------------------------------------------------------------------
-// Render HTML page:
-function renderPage()
+// Ouput the last 50 links in ATOM format.
+function showATOM()
+{
+ global $LINKSDB;
+
+ // 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;
+
+ header('Content-Type: application/atom+xml; charset=utf-8');
+ $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 && $i<count($keys))
+ {
+ $link = $linksToDisplay[$keys[$i]];
+ $guid = $pageaddr.'?'.smallHash($link['linkdate']);
+ $iso8601date = linkdate2iso8601($link['linkdate']);
+ $latestDate = max($latestDate,$iso8601date);
+ $absurl = htmlspecialchars($link['url']);
+ if (startsWith($absurl,'?')) $absurl=$pageaddr.$absurl; // make permalink URL absolute
+ $entries.='<entry><title>'.htmlspecialchars($link['title']).'</title><link href="'.$absurl.'" /><id>'.$guid.'</id>';
+ if (!$GLOBALS['config']['HIDE_TIMESTAMPS'] || isLoggedIn()) $entries.='<updated>'.htmlspecialchars($iso8601date).'</updated>';
+ $entries.='<content type="html">'.htmlspecialchars(nl2br(keepMultipleSpaces(text2clickable(htmlspecialchars($link['description'])))))."</content>\n";
+ if ($link['tags']!='') // Adding tags to each ATOM entry (as mentioned in ATOM specification)
+ {
+ foreach(explode(' ',$link['tags']) as $tag)
+ { $entries.='<category scheme="'.htmlspecialchars($pageaddr,ENT_QUOTES).'" term="'.htmlspecialchars($tag,ENT_QUOTES).'" />'."\n"; }
+ }
+ $entries.="</entry>\n";
+ $i++;
+ }
+ $feed='<?xml version="1.0" encoding="UTF-8"?><feed xmlns="http://www.w3.org/2005/Atom">';
+ $feed.='<title>'.htmlspecialchars($GLOBALS['title']).'</title>';
+ if (!$GLOBALS['config']['HIDE_TIMESTAMPS'] || isLoggedIn()) $feed.='<updated>'.htmlspecialchars($latestDate).'</updated>';
+ $feed.='<link rel="self" href="'.htmlspecialchars(serverUrl().$_SERVER["REQUEST_URI"]).'" />';
+ if (!empty($GLOBALS['config']['PUBSUBHUB_URL']))
+ {
+ $feed.='<!-- PubSubHubbub Discovery -->';
+ $feed.='<link rel="hub" href="'.htmlspecialchars($GLOBALS['config']['PUBSUBHUB_URL']).'" />';
+ $feed.='<!-- End Of PubSubHubbub Discovery -->';
+ }
+ $feed.='<author><name>'.htmlspecialchars($pageaddr).'</name><uri>'.htmlspecialchars($pageaddr).'</uri></author>';
+ $feed.='<id>'.htmlspecialchars($pageaddr).'</id>'."\n\n"; // Yes, I know I should use a real IRI (RFC3987), but the site URL will do.
+ $feed.=$entries;
+ $feed.='</feed>';
+ echo $feed;
+ 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()
{
- global $STARTTIME;
global $LINKSDB;
- // Well... rendering the page would be 100x better with the excellent Smarty, but I don't want to tie this minimalist project to 100+ files.
- // So I use a custom templating system.
+ /* Some Shaarlies may have very few links, so we need to look
+ back in time (rsort()) until we have enough days ($nb_of_days).
+ */
+ $linkdates=array(); foreach($LINKSDB as $linkdate=>$value) { $linkdates[]=$linkdate; }
+ rsort($linkdates);
+ $nb_of_days=7; // We take 7 days.
+ $today=Date('Ymd');
+ $days=array();
+ foreach($linkdates as $linkdate)
+ {
+ $day=substr($linkdate,0,8); // Extract day (without time)
+ if (strcmp($day,$today)<0)
+ {
+ if (empty($days[$day])) $days[$day]=array();
+ $days[$day][]=$linkdate;
+ }
+ if (count($days)>$nb_of_days) break; // Have we collected enough days ?
+ }
+
+ // Build the RSS feed.
+ header('Content-Type: application/rss+xml; charset=utf-8');
+ $pageaddr=htmlspecialchars(indexUrl());
+ echo '<?xml version="1.0" encoding="UTF-8"?><rss version="2.0">';
+ echo '<channel><title>Daily - '.htmlspecialchars($GLOBALS['title']).'</title><link>'.$pageaddr.'</link>';
+ echo '<description>Daily shared links</description><language>en-en</language><copyright>'.$pageaddr.'</copyright>'."\n";
- // -------- Display login form.
- if (startswith($_SERVER["QUERY_STRING"],'do=login'))
+ foreach($days as $day=>$linkdates) // For each day.
{
- if (!ban_canLogin())
- {
- $loginform='<div id="headerform">You have been banned from login after too many failed attempts. Try later.</div>';
- $data = array('pageheader'=>$loginform,'body'=>'','onload'=>'');
- templatePage($data);
- exit;
+ $daydate = utf8_encode(strftime('%A %d, %B %Y',linkdate2timestamp($day.'_000000'))); // Full text date
+ $rfc822date = linkdate2rfc822($day.'_000000');
+ $absurl=htmlspecialchars(indexUrl().'?do=daily&day='.$day); // Absolute URL of the corresponding "Daily" page.
+ echo '<item><title>'.htmlspecialchars($GLOBALS['title'].' - '.$daydate).'</title><guid>'.$absurl.'</guid><link>'.$absurl.'</link>';
+ echo '<pubDate>'.htmlspecialchars($rfc822date)."</pubDate>";
+
+ // Build the HTML body of this RSS entry.
+ $html='';
+ $href='';
+ $links=array();
+ // We pre-format some fields for proper output.
+ foreach($linkdates as $linkdate)
+ {
+ $l = $LINKSDB[$linkdate];
+ $l['formatedDescription']=nl2br(keepMultipleSpaces(text2clickable(htmlspecialchars($l['description']))));
+ $l['thumbnail'] = thumbnail($l['url']);
+ $l['localdate']=linkdate2locale($l['linkdate']);
+ if (startsWith($l['url'],'?')) $l['url']=indexUrl().$l['url']; // make permalink URL absolute
+ $links[$linkdate]=$l;
}
- $returnurl_html = (isset($_SERVER['HTTP_REFERER']) ? '<input type="hidden" name="returnurl" value="'.htmlspecialchars($_SERVER['HTTP_REFERER']).'">' : '');
- $loginform='<div id="headerform"><form method="post" name="loginform">Login: <input type="text" name="login"> Password : <input type="password" name="password"> <input type="submit" value="Login" class="bigbutton"><input type="hidden" name="token" value="'.getToken().'">'.$returnurl_html.'</form></div>';
- $onload = 'onload="document.loginform.login.focus();"';
- $data = array('pageheader'=>$loginform,'body'=>'','onload'=>$onload);
- templatePage($data);
+ // Then build the HTML for this day:
+ $tpl = new RainTPL;
+ $tpl->assign('links',$links);
+ $html = $tpl->draw('dailyrss',$return_string=true);
+ echo "\n";
+ echo '<description><![CDATA['.$html.']]></description>'."\n</item>\n\n";
+
+ }
+ echo '</channel></rss>';
+ exit;
+}
+
+
+// ------------------------------------------------------------------------------------------
+// Render HTML page (according to URL parameters and user rights)
+function renderPage()
+{
+ global $LINKSDB;
+
+ // -------- Display login form.
+ if (isset($_SERVER["QUERY_STRING"]) && startswith($_SERVER["QUERY_STRING"],'do=login'))
+ {
+ if ($GLOBALS['config']['OPEN_SHAARLI']) { header('Location: ?'); exit; } // No need to login for open Shaarli
+ $token=''; if (ban_canLogin()) $token=getToken(); // Do not waste token generation if not useful.
+ $PAGE = new pageBuilder;
+ $PAGE->assign('token',$token);
+ $PAGE->assign('returnurl',(isset($_SERVER['HTTP_REFERER']) ? $_SERVER['HTTP_REFERER']:''));
+ $PAGE->renderPage('loginform');
exit;
}
-
// -------- User wants to logout.
- if (startswith($_SERVER["QUERY_STRING"],'do=logout'))
- {
- logout();
- header('Location: ?');
- exit;
- }
-
+ if (isset($_SERVER["QUERY_STRING"]) && startswith($_SERVER["QUERY_STRING"],'do=logout'))
+ {
+ invalidateCaches();
+ logout();
+ header('Location: ?');
+ exit;
+ }
+
+ // -------- Picture wall
+ if (isset($_SERVER["QUERY_STRING"]) && startswith($_SERVER["QUERY_STRING"],'do=picwall'))
+ {
+ // Optionnaly filter the results:
+ $links=array();
+ if (!empty($_GET['searchterm'])) $links = $LINKSDB->filterFulltext($_GET['searchterm']);
+ elseif (!empty($_GET['searchtags'])) $links = $LINKSDB->filterTags(trim($_GET['searchtags']));
+ else $links = $LINKSDB;
+ $body='';
+ $linksToDisplay=array();
+
+ // Get only links which have a thumbnail.
+ foreach($links as $link)
+ {
+ $permalink='?'.htmlspecialchars(smallhash($link['linkdate']),ENT_QUOTES);
+ $thumb=lazyThumbnail($link['url'],$permalink);
+ if ($thumb!='') // Only output links which have a thumbnail.
+ {
+ $link['thumbnail']=$thumb; // Thumbnail HTML code.
+ $link['permalink']=$permalink;
+ $linksToDisplay[]=$link; // Add to array.
+ }
+ }
+ $PAGE = new pageBuilder;
+ $PAGE->assign('linksToDisplay',$linksToDisplay);
+ $PAGE->renderPage('picwall');
+ exit;
+ }
+
+ // -------- Tag cloud
+ if (isset($_SERVER["QUERY_STRING"]) && startswith($_SERVER["QUERY_STRING"],'do=tagcloud'))
+ {
+ $tags= $LINKSDB->allTags();
+ // We sort tags alphabetically, then choose a font size according to count.
+ // First, find max value.
+ $maxcount=0; foreach($tags as $key=>$value) $maxcount=max($maxcount,$value);
+ ksort($tags);
+ $tagList=array();
+ foreach($tags as $key=>$value)
+ {
+ $tagList[$key] = array('count'=>$value,'size'=>max(40*$value/$maxcount,8));
+ }
+ $PAGE = new pageBuilder;
+ $PAGE->assign('tags',$tagList);
+ $PAGE->renderPage('tagcloud');
+ exit;
+ }
+
// -------- User clicks on a tag in a link: The tag is added to the list of searched tags (searchtags=...)
if (isset($_GET['addtag']))
{
// Get previous URL (http_referer) and add the tag to the searchtags parameters in query.
if (empty($_SERVER['HTTP_REFERER'])) { header('Location: ?searchtags='.urlencode($_GET['addtag'])); exit; } // In case browser does not send HTTP_REFERER
parse_str(parse_url($_SERVER['HTTP_REFERER'],PHP_URL_QUERY), $params);
- $params['searchtags'] = (empty($params['searchtags']) ? trim($_GET['addtag']) : trim($params['searchtags'].' '.urlencode($_GET['addtag'])));
+ $params['searchtags'] = (empty($params['searchtags']) ? trim($_GET['addtag']) : trim($params['searchtags']).' '.trim($_GET['addtag']));
unset($params['page']); // We also remove page (keeping the same page has no sense, since the results are different)
header('Location: ?'.http_build_query($params));
exit;
}
header('Location: ?'.http_build_query($params));
exit;
- }
-
+ }
+
// -------- User wants to change the number of links per page (linksperpage=...)
if (isset($_GET['linksperpage']))
{
exit;
}
+ // -------- User wants to see only private links (toggle)
+ if (isset($_GET['privateonly']))
+ {
+ if (empty($_SESSION['privateonly']))
+ {
+ $_SESSION['privateonly']=1; // See only private links
+ }
+ else
+ {
+ unset($_SESSION['privateonly']); // See all links
+ }
+ header('Location: '.(empty($_SERVER['HTTP_REFERER'])?'?':$_SERVER['HTTP_REFERER']));
+ exit;
+ }
+ // --------- Daily (all links form a specific day) ----------------------
+ if (isset($_SERVER["QUERY_STRING"]) && startswith($_SERVER["QUERY_STRING"],'do=daily'))
+ {
+ $day=Date('Ymd',strtotime('-1 day')); // Yesterday, in format YYYYMMDD.
+ if (isset($_GET['day'])) $day=$_GET['day'];
+
+ $days = $LINKSDB->days();
+ $i = array_search($day,$days);
+ if ($i==false) { $i=count($days)-1; $day=$days[$i]; }
+ $previousday='';
+ $nextday='';
+ if ($i!==false)
+ {
+ if ($i>1) $previousday=$days[$i-1];
+ if ($i<count($days)-1) $nextday=$days[$i+1];
+ }
+
+ $linksToDisplay=$LINKSDB->filterDay($day);
+ // We pre-format some fields for proper output.
+ foreach($linksToDisplay as $key=>$link)
+ {
+ $linksToDisplay[$key]['taglist']=explode(' ',$link['tags']);
+ $linksToDisplay[$key]['formatedDescription']=nl2br(keepMultipleSpaces(text2clickable(htmlspecialchars($link['description']))));
+ $linksToDisplay[$key]['thumbnail'] = thumbnail($link['url']);
+ }
+
+ /* We need to spread the articles on 3 columns.
+ I did not want to use a javascript lib like http://masonry.desandro.com/
+ so I manually spread entries with a simple method: I roughly evaluate the
+ height of a div according to title and description length.
+ */
+ $columns=array(array(),array(),array()); // Entries to display, for each column.
+ $fill=array(0,0,0); // Rough estimate of columns fill.
+ foreach($linksToDisplay as $key=>$link)
+ {
+ // Roughly estimate length of entry (by counting characters)
+ // Title: 30 chars = 1 line. 1 line is 30 pixels height.
+ // Description: 836 characters gives roughly 342 pixel height.
+ // This is not perfect, but it's usually ok.
+ $length=strlen($link['title'])+(342*strlen($link['description']))/836;
+ if ($link['thumbnail']) $length +=100; // 1 thumbnails roughly takes 100 pixels height.
+ // Then put in column which is the less filled:
+ $smallest=min($fill); // find smallest value in array.
+ $index=array_search($smallest,$fill); // find index of this smallest value.
+ array_push($columns[$index],$link); // Put entry in this column.
+ $fill[$index]+=$length;
+ }
+ $PAGE = new pageBuilder;
+ $PAGE->assign('linksToDisplay',$linksToDisplay);
+ $PAGE->assign('col1',$columns[0]);
+ $PAGE->assign('col2',$columns[1]);
+ $PAGE->assign('col3',$columns[2]);
+ $PAGE->assign('day',utf8_encode(strftime('%A %d, %B %Y',linkdate2timestamp($day.'_000000'))));
+ $PAGE->assign('previousday',$previousday);
+ $PAGE->assign('nextday',$nextday);
+ $PAGE->renderPage('daily');
+ exit;
+ }
+
// -------- Handle other actions allowed for non-logged in users:
if (!isLoggedIn())
{
// User tries to post new link but is not loggedin:
// Show login screen, then redirect to ?post=...
- if (isset($_GET['post']))
+ if (isset($_GET['post']))
{
- header('Location: ?do=login&post='.urlencode($_GET['post']).(isset($_GET['source'])?'&source='.urlencode($_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['source'])?'&source='.urlencode($_GET['source']):'')); // Redirect to login page, then back to post link.
exit;
}
-
- // Show search form and display list of links.
- $searchform=<<<HTML
-<div id="headerform" style="width:100%; white-space:nowrap;";>
- <form method="GET" name="searchform" style="display:inline;"><input type="text" name="searchterm" style="width:50%" value=""> <input type="submit" value="Search" class="bigbutton"></form>
- <form method="GET" name="tagfilter" style="display:inline;padding-left:24px;"><input type="text" name="searchtags" style="width:20%" value=""> <input type="submit" value="Filter by tag" class="bigbutton"></form>
-</div>
-HTML;
- $onload = 'document.searchform.searchterm.focus();';
- $data = array('pageheader'=>$searchform,'body'=>templateLinkList(),'onload'=>$onload);
- templatePage($data);
- exit; // Never remove this one !
+ $PAGE = new pageBuilder;
+ buildLinkList($PAGE); // Compute list of links to display
+ $PAGE->renderPage('linklist');
+ exit; // Never remove this one ! All operations below are reserved for logged in user.
}
-
+
// -------- All other functions are reserved for the registered user:
-
+
// -------- Display the Tools menu if requested (import/export/bookmarklet...)
- if (startswith($_SERVER["QUERY_STRING"],'do=tools'))
- {
- $pageabsaddr=serverUrl().$_SERVER["SCRIPT_NAME"]; // Why doesn't php have a built-in function for that ?
- // The javascript code for the bookmarklet:
- $toolbar= <<<HTML
-<div id="headerform">
- <a href="?do=import"><b>Import</b></a> - <small>Import Netscape html bookmarks (as exported from Firefox, Chrome, Opera, delicious...)</small><br>
- <a href="?do=export"><b>Export</b></a> - <small>Export Netscape html bookmarks (which can be imported in Firefox, Chrome, Opera, delicious...)</small><br>
- <a class="smallbutton" style="color:black;" onclick="alert('Drag this link to your bookmarks toolbar, or right-click it and choose Bookmark This Link...');return false;" href="javascript:javascript:(function(){var%20url%20=%20location.href;var%20title%20=%20document.title%20||%20url;window.open('{$pageabsaddr}?post='%20+%20encodeURIComponent(url)+'&title='%20+%20encodeURIComponent(title)+'&source=bookmarklet','_blank','menubar=no,height=400,width=608,toolbar=no,scrollbars=no,status=no');})();">Shaare link</a> - <small>Drag this link to your bookmarks toolbar (or right-click it and choose Bookmark This Link....). Then click "Shaare link" button in any page you want to share.</small>
-</div>
-HTML;
- $data = array('pageheader'=>$toolbar,'body'=>'','onload'=>'');
- templatePage($data);
+ if (isset($_SERVER["QUERY_STRING"]) && startswith($_SERVER["QUERY_STRING"],'do=tools'))
+ {
+ $PAGE = new pageBuilder;
+ $PAGE->assign('pageabsaddr',indexUrl());
+ $PAGE->renderPage('tools');
exit;
}
-
- // -------- User wants to add a link without using the bookmarklet: show form.
- if (startswith($_SERVER["QUERY_STRING"],'do=addlink'))
+
+ // -------- User wants to change his/her password.
+ if (isset($_SERVER["QUERY_STRING"]) && startswith($_SERVER["QUERY_STRING"],'do=changepasswd'))
{
- $onload = 'document.addform.post.focus();';
- $addform= '<div id="headerform"><form method="GET" action="" name="addform"><input type="text" name="post" style="width:70%;"> <input type="submit" value="Add link" class="bigbutton"></div>';
- $data = array('pageheader'=>$addform,'body'=>'','onload'=>$onload);
- templatePage($data);
- exit;
- }
-
- // -------- User clicked the "Save" button when editing a link: Save link to database.
- if (isset($_POST['save_edit']))
+ if ($GLOBALS['config']['OPEN_SHAARLI']) die('You are not supposed to change a password on an Open Shaarli.');
+ if (!empty($_POST['setpassword']) && !empty($_POST['oldpassword']))
+ {
+ if (!tokenOk($_POST['token'])) die('Wrong token.'); // Go away !
+
+ // Make sure old password is correct.
+ $oldhash = sha1($_POST['oldpassword'].$GLOBALS['login'].$GLOBALS['salt']);
+ if ($oldhash!=$GLOBALS['hash']) { echo '<script language="JavaScript">alert("The old password is not correct.");document.location=\'?do=changepasswd\';</script>'; exit; }
+ // Save new password
+ $GLOBALS['salt'] = sha1(uniqid('',true).'_'.mt_rand()); // Salt renders rainbow-tables attacks useless.
+ $GLOBALS['hash'] = sha1($_POST['setpassword'].$GLOBALS['login'].$GLOBALS['salt']);
+ writeConfig();
+ echo '<script language="JavaScript">alert("Your password has been changed.");document.location=\'?do=tools\';</script>';
+ exit;
+ }
+ else // show the change password form.
+ {
+ $PAGE = new pageBuilder;
+ $PAGE->assign('token',getToken());
+ $PAGE->renderPage('changepassword');
+ exit;
+ }
+ }
+
+ // -------- User wants to change configuration
+ if (isset($_SERVER["QUERY_STRING"]) && startswith($_SERVER["QUERY_STRING"],'do=configure'))
+ {
+ if (!empty($_POST['title']) )
+ {
+ if (!tokenOk($_POST['token'])) die('Wrong token.'); // Go away !
+ $tz = 'UTC';
+ if (!empty($_POST['continent']) && !empty($_POST['city']))
+ if (isTZvalid($_POST['continent'],$_POST['city']))
+ $tz = $_POST['continent'].'/'.$_POST['city'];
+ $GLOBALS['timezone'] = $tz;
+ $GLOBALS['title']=$_POST['title'];
+ $GLOBALS['redirector']=$_POST['redirector'];
+ writeConfig();
+ echo '<script language="JavaScript">alert("Configuration was saved.");document.location=\'?do=tools\';</script>';
+ exit;
+ }
+ else // Show the configuration form.
+ {
+ $PAGE = new pageBuilder;
+ $PAGE->assign('token',getToken());
+ $PAGE->assign('title',htmlspecialchars( empty($GLOBALS['title']) ? '' : $GLOBALS['title'] , ENT_QUOTES));
+ $PAGE->assign('redirector',htmlspecialchars( empty($GLOBALS['redirector']) ? '' : $GLOBALS['redirector'] , ENT_QUOTES));
+ list($timezone_form,$timezone_js) = templateTZform($GLOBALS['timezone']);
+ $PAGE->assign('timezone_form',$timezone_form); // FIXME: put entire tz form generation in template ?
+ $PAGE->assign('timezone_js',$timezone_js);
+ $PAGE->renderPage('configure');
+ exit;
+ }
+ }
+
+ // -------- User wants to rename a tag or delete it
+ if (isset($_SERVER["QUERY_STRING"]) && startswith($_SERVER["QUERY_STRING"],'do=changetag'))
+ {
+ if (empty($_POST['fromtag']))
+ {
+ $PAGE = new pageBuilder;
+ $PAGE->assign('token',getToken());
+ $PAGE->renderPage('changetag');
+ exit;
+ }
+ if (!tokenOk($_POST['token'])) die('Wrong token.');
+
+ // Delete a tag:
+ if (!empty($_POST['deletetag']) && !empty($_POST['fromtag']))
+ {
+ $needle=trim($_POST['fromtag']);
+ $linksToAlter = $LINKSDB->filterTags($needle,true); // true for case-sensitive tag search.
+ foreach($linksToAlter as $key=>$value)
+ {
+ $tags = explode(' ',trim($value['tags']));
+ unset($tags[array_search($needle,$tags)]); // Remove tag.
+ $value['tags']=trim(implode(' ',$tags));
+ $LINKSDB[$key]=$value;
+ }
+ $LINKSDB->savedb(); // save to disk
+ invalidateCaches();
+ echo '<script language="JavaScript">alert("Tag was removed from '.count($linksToAlter).' links.");document.location=\'?\';</script>';
+ exit;
+ }
+
+ // Rename a tag:
+ if (!empty($_POST['renametag']) && !empty($_POST['fromtag']) && !empty($_POST['totag']))
+ {
+ $needle=trim($_POST['fromtag']);
+ $linksToAlter = $LINKSDB->filterTags($needle,true); // true for case-sensitive tag search.
+ foreach($linksToAlter as $key=>$value)
+ {
+ $tags = explode(' ',trim($value['tags']));
+ $tags[array_search($needle,$tags)] = trim($_POST['totag']); // Remplace tags value.
+ $value['tags']=trim(implode(' ',$tags));
+ $LINKSDB[$key]=$value;
+ }
+ $LINKSDB->savedb(); // save to disk
+ invalidateCaches();
+ echo '<script language="JavaScript">alert("Tag was renamed in '.count($linksToAlter).' links.");document.location=\'?searchtags='.urlencode($_POST['totag']).'\';</script>';
+ exit;
+ }
+ }
+
+ // -------- User wants to add a link without using the bookmarklet: show form.
+ if (isset($_SERVER["QUERY_STRING"]) && startswith($_SERVER["QUERY_STRING"],'do=addlink'))
+ {
+ $PAGE = new pageBuilder;
+ $PAGE->renderPage('addlink');
+ exit;
+ }
+
+ // -------- User clicked the "Save" button when editing a link: Save link to database.
+ if (isset($_POST['save_edit']))
{
if (!tokenOk($_POST['token'])) die('Wrong token.'); // Go away !
+ $tags = trim(preg_replace('/\s\s+/',' ', $_POST['lf_tags'])); // Remove multiple spaces.
$linkdate=$_POST['lf_linkdate'];
$link = array('title'=>trim($_POST['lf_title']),'url'=>trim($_POST['lf_url']),'description'=>trim($_POST['lf_description']),'private'=>(isset($_POST['lf_private']) ? 1 : 0),
- 'linkdate'=>$linkdate,'tags'=>trim($_POST['lf_tags']));
+ 'linkdate'=>$linkdate,'tags'=>str_replace(',',' ',$tags));
if ($link['title']=='') $link['title']=$link['url']; // If title is empty, use the URL as title.
$LINKSDB[$linkdate] = $link;
$LINKSDB->savedb(); // save to disk
-
+ pubsubhub();
+ invalidateCaches();
+
// If we are called from the bookmarklet, we must close the popup:
if (isset($_GET['source']) && $_GET['source']=='bookmarklet') { echo '<script language="JavaScript">self.close();</script>'; exit; }
$returnurl = ( isset($_POST['returnurl']) ? $_POST['returnurl'] : '?' );
header('Location: '.$returnurl); // After saving the link, redirect to the page the user was on.
exit;
- }
-
+ }
+
// -------- User clicked the "Cancel" button when editing a link.
if (isset($_POST['cancel_edit']))
{
if (isset($_GET['source']) && $_GET['source']=='bookmarklet') { echo '<script language="JavaScript">self.close();</script>'; exit; }
$returnurl = ( isset($_POST['returnurl']) ? $_POST['returnurl'] : '?' );
header('Location: '.$returnurl); // After canceling, redirect to the page the user was on.
- exit;
+ exit;
}
// -------- User clicked the "Delete" button when editing a link : Delete link from database.
$linkdate=$_POST['lf_linkdate'];
unset($LINKSDB[$linkdate]);
$LINKSDB->savedb(); // save to disk
+ invalidateCaches();
// If we are called from the bookmarklet, we must close the popup:
if (isset($_GET['source']) && $_GET['source']=='bookmarklet') { echo '<script language="JavaScript">self.close();</script>'; exit; }
$returnurl = ( isset($_POST['returnurl']) ? $_POST['returnurl'] : '?' );
header('Location: '.$returnurl); // After deleting the link, redirect to the page the user was on.
exit;
- }
-
+ }
+
// -------- User clicked the "EDIT" button on a link: Display link edit form.
- if (isset($_GET['edit_link']))
+ if (isset($_GET['edit_link']))
{
$link = $LINKSDB[$_GET['edit_link']]; // Read database
if (!$link) { header('Location: ?'); exit; } // Link not found in database.
- list($editform,$onload)=templateEditForm($link);
- $data = array('pageheader'=>$editform,'body'=>'','onload'=>$onload);
- templatePage($data);
- exit;
+ $PAGE = new pageBuilder;
+ $PAGE->assign('link',$link);
+ $PAGE->assign('link_is_new',false);
+ $PAGE->assign('token',getToken()); // XSRF protection.
+ $PAGE->assign('http_referer',(isset($_SERVER['HTTP_REFERER']) ? $_SERVER['HTTP_REFERER'] : ''));
+ $PAGE->renderPage('editlink');
+ exit;
}
-
+
// -------- User want to post a new link: Display link edit form.
if (isset($_GET['post']))
{
$url=$_GET['post'];
// We remove the annoying parameters added by FeedBurner and GoogleFeedProxy (?utm_source=...)
- $i=strpos($url,'&utm_source='); if ($i) $url=substr($url,0,$i);
- $i=strpos($url,'?utm_source='); if ($i) $url=substr($url,0,$i);
-
+ $i=strpos($url,'&utm_source='); if ($i!==false) $url=substr($url,0,$i);
+ $i=strpos($url,'?utm_source='); if ($i!==false) $url=substr($url,0,$i);
+ $i=strpos($url,'#xtor=RSS-'); if ($i!==false) $url=substr($url,0,$i);
+
$link_is_new = false;
$link = $LINKSDB->getLinkFromUrl($url); // Check if URL is not already in database (in this case, we will edit the existing link)
- if (!$link)
+ if (!$link)
{
$link_is_new = true; // This is a new link
$linkdate = strval(date('Ymd_His'));
$title = (empty($_GET['title']) ? '' : $_GET['title'] ); // Get title if it was provided in URL (by the bookmarklet).
$description=''; $tags=''; $private=0;
- if (parse_url($url,PHP_URL_SCHEME)=='') $url = 'http://'.$url;
+ if (($url!='') && parse_url($url,PHP_URL_SCHEME)=='') $url = 'http://'.$url;
// If this is an HTTP link, we try go get the page to 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) <head> in html
- if (strpos($status,'200 OK')) $title=html_entity_decode(html_extract_title($data),ENT_QUOTES,'UTF-8');
+ // FIXME: Decode charset according to specified in either 1) HTTP response headers or 2) <head> in html
+ if (strpos($status,'200 OK')!==false) $title=html_entity_decode(html_extract_title($data),ENT_QUOTES,'UTF-8');
}
- $link = array('linkdate'=>$linkdate,'title'=>$title,'url'=>$url,'description'=>$description,'tags'=>$tags,'private'=>0);
+ 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);
}
- list($editform,$onload)=templateEditForm($link,$link_is_new);
- $data = array('pageheader'=>$editform,'body'=>'','onload'=>$onload);
- templatePage($data);
+
+ $PAGE = new pageBuilder;
+ $PAGE->assign('link',$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'] : ''));
+ $PAGE->renderPage('editlink');
exit;
}
-
+
// -------- Export as Netscape Bookmarks HTML file.
- if (startswith($_SERVER["QUERY_STRING"],'do=export'))
- {
+ if (isset($_SERVER["QUERY_STRING"]) && startswith($_SERVER["QUERY_STRING"],'do=export'))
+ {
+ if (empty($_GET['what']))
+ {
+ $PAGE = new pageBuilder;
+ $PAGE->renderPage('export');
+ exit;
+ }
+ $exportWhat=$_GET['what'];
+ if (!array_intersect(array('all','public','private'),array($exportWhat))) die('What are you trying to export ???');
+
header('Content-Type: text/html; charset=utf-8');
- header('Content-disposition: attachment; filename=bookmarks_'.strval(date('Ymd_His')).'.html');
+ header('Content-disposition: attachment; filename=bookmarks_'.$exportWhat.'_'.strval(date('Ymd_His')).'.html');
+ $currentdate=date('Y/m/d H:i:s');
echo <<<HTML
<!DOCTYPE NETSCAPE-Bookmark-file-1>
<!-- This is an automatically generated file.
It will be read and overwritten.
DO NOT EDIT! -->
+<!-- Shaarli {$exportWhat} bookmarks export on {$currentdate} -->
<META HTTP-EQUIV="Content-Type" CONTENT="text/html; charset=UTF-8">
<TITLE>Bookmarks</TITLE>
<H1>Bookmarks</H1>
HTML;
foreach($LINKSDB as $link)
{
- echo '<DT><A HREF="'.htmlspecialchars($link['url']).'" ADD_DATE="'.linkdate2timestamp($link['linkdate']).'" PRIVATE="'.$link['private'].'"';
- if ($link['tags']!='') echo ' TAGS="'.htmlspecialchars(str_replace(' ',',',$link['tags'])).'"';
- echo '>'.htmlspecialchars($link['title'])."</A>\n";
- if ($link['description']!='') echo '<DD>'.htmlspecialchars($link['description'])."\n";
+ if ($exportWhat=='all' ||
+ ($exportWhat=='private' && $link['private']!=0) ||
+ ($exportWhat=='public' && $link['private']==0))
+ {
+ echo '<DT><A HREF="'.htmlspecialchars($link['url']).'" ADD_DATE="'.linkdate2timestamp($link['linkdate']).'" PRIVATE="'.$link['private'].'"';
+ if ($link['tags']!='') echo ' TAGS="'.htmlspecialchars(str_replace(' ',',',$link['tags'])).'"';
+ echo '>'.htmlspecialchars($link['title'])."</A>\n";
+ if ($link['description']!='') echo '<DD>'.htmlspecialchars($link['description'])."\n";
+ }
}
- echo '<!-- Shaarli bookmarks export on '.date('Y/m/d H:i:s')."-->\n";
- exit;
- }
+ exit;
+ }
// -------- User is uploading a file for import
- if (startswith($_SERVER["QUERY_STRING"],'do=upload'))
+ if (isset($_SERVER["QUERY_STRING"]) && startswith($_SERVER["QUERY_STRING"],'do=upload'))
{
// If file is too big, some form field may be missing.
if (!isset($_POST['token']) || (!isset($_FILES)) || (isset($_FILES['filetoupload']['size']) && $_FILES['filetoupload']['size']==0))
$returnurl = ( empty($_SERVER['HTTP_REFERER']) ? '?' : $_SERVER['HTTP_REFERER'] );
echo '<script language="JavaScript">alert("The file you are trying to upload is probably bigger than what this webserver can accept ('.getMaxFileSize().' bytes). Please upload in smaller chunks.");document.location=\''.htmlspecialchars($returnurl).'\';</script>';
exit;
- }
+ }
if (!tokenOk($_POST['token'])) die('Wrong token.');
importFile();
exit;
- }
-
+ }
+
// -------- Show upload/import dialog:
- if (startswith($_SERVER["QUERY_STRING"],'do=import'))
- {
- $token = getToken();
- $maxfilesize=getMaxFileSize();
- $onload = 'onload="document.uploadform.filetoupload.focus();"';
- $uploadform=<<<HTML
-<div id="headerform">
-Import Netscape html bookmarks (as exported from Firefox/Chrome/Opera/delicious/diigo...) (Max: {$maxfilesize} bytes).
-<form method="POST" action="?do=upload" enctype="multipart/form-data" name="uploadform">
- <input type="hidden" name="token" value="{$token}">
- <input type="file" name="filetoupload" size="80">
- <input type="hidden" name="MAX_FILE_SIZE" value="{$maxfilesize}">
- <input type="submit" name="import_file" value="Import" class="bigbutton">
-</form>
-</div>
-HTML;
- $data = array('pageheader'=>$uploadform,'body'=>'','onload'=>$onload );
- templatePage($data);
+ if (isset($_SERVER["QUERY_STRING"]) && startswith($_SERVER["QUERY_STRING"],'do=import'))
+ {
+ $PAGE = new pageBuilder;
+ $PAGE->assign('token',getToken());
+ $PAGE->assign('maxfilesize',getMaxFileSize());
+ $PAGE->renderPage('import');
exit;
- }
+ }
// -------- Otherwise, simply display search form and links:
- $searchform=<<<HTML
-<div id="headerform" style="width:100%; white-space:nowrap;";>
- <form method="GET" name="searchform" style="display:inline;"><input type="text" name="searchterm" style="width:50%" value=""> <input type="submit" value="Search" class="bigbutton"></form>
- <form method="GET" name="tagfilter" style="display:inline;padding-left:24px;"><input type="text" name="searchtags" style="width:20%" value=""> <input type="submit" value="Filter by tag" class="bigbutton"></form>
-</div>
-HTML;
- $onload = 'document.searchform.searchterm.focus();';
- $data = array('pageheader'=>$searchform,'body'=>templateLinkList(),'onload'=>$onload);
- templatePage($data);
+ $PAGE = new pageBuilder;
+ buildLinkList($PAGE); // Compute list of links to display
+ $PAGE->renderPage('linklist');
exit;
-}
+}
// -----------------------------------------------------------------------------------------------
// Process the import file form.
{
global $LINKSDB;
$filename=$_FILES['filetoupload']['name'];
- $filesize=$_FILES['filetoupload']['size'];
+ $filesize=$_FILES['filetoupload']['size'];
$data=file_get_contents($_FILES['filetoupload']['tmp_name']);
+ $private = (empty($_POST['private']) ? 0 : 1); // Should the links be imported as private ?
+ $overwrite = !empty($_POST['overwrite']) ; // Should the imported links overwrite existing ones ?
+ $import_count=0;
// Sniff file type:
$type='unknown';
if (startsWith($data,'<!DOCTYPE NETSCAPE-Bookmark-file-1>')) $type='netscape'; // Netscape bookmark file (aka Firefox).
-
+
// Then import the bookmarks.
if ($type=='netscape')
{
// This is a standard Netscape-style bookmark file.
- // This format is supported by all browsers (except IE, of course), also delicious, diigo and others.
- // I didn't want to use DOM... anyway, this is FAST (less than 1 second to import 7200 links (2.1 Mb html file)).
- $before=count($LINKSDB);
+ // This format is supported by all browsers (except IE, of course), also delicious, diigo and others.
foreach(explode('<DT>',$data) as $html) // explode is very fast
{
- $link = array('linkdate'=>'','title'=>'','url'=>'','description'=>'','tags'=>'','private'=>0);
+ $link = array('linkdate'=>'','title'=>'','url'=>'','description'=>'','tags'=>'','private'=>0);
$d = explode('<DD>',$html);
if (startswith($d[0],'<A '))
{
- $link['description'] = (isset($d[1]) ? trim($d[1]) : ''); // Get description (optional)
+ $link['description'] = (isset($d[1]) ? html_entity_decode(trim($d[1]),ENT_QUOTES,'UTF-8') : ''); // Get description (optional)
preg_match('!<A .*?>(.*?)</A>!i',$d[0],$matches); $link['title'] = (isset($matches[1]) ? trim($matches[1]) : ''); // Get title
+ $link['title'] = html_entity_decode($link['title'],ENT_QUOTES,'UTF-8');
preg_match_all('! ([A-Z_]+)=\"(.*?)"!i',$html,$matches,PREG_SET_ORDER); // Get all other attributes
+ $raw_add_date=0;
foreach($matches as $m)
{
$attr=$m[1]; $value=$m[2];
- if ($attr=='HREF') $link['url']=$value;
- elseif ($attr=='ADD_DATE') $link['linkdate']=date('Ymd_His',intval($value));
+ 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') $link['tags']=str_replace(',',' ',$value);
- }
- if ($link['linkdate']!='' && $link['url']!='') $LINKSDB[$link['linkdate']] = $link;
- }
+ elseif ($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++;
+ }
+ }
+
+ }
+ }
}
- $import_count = count($LINKSDB)-$before;
$LINKSDB->savedb();
- echo '<script language="JavaScript">alert("File '.$filename.' ('.$filesize.' bytes) was successfully imported: '.$import_count.' new links.");document.location=\'?\';</script>';
+ invalidateCaches();
+ echo '<script language="JavaScript">alert("File '.$filename.' ('.$filesize.' bytes) was successfully processed: '.$import_count.' links imported.");document.location=\'?\';</script>';
}
else
{
echo '<script language="JavaScript">alert("File '.$filename.' ('.$filesize.' bytes) has an unknown file format. Nothing was imported.");document.location=\'?\';</script>';
}
-}
+}
// -----------------------------------------------------------------------------------------------
-/* Template for the edit link form
- Input: $link : link to edit (assocative array item as returned by the LINKDB class)
-Output: An array : (string) : The html code of the edit link form.
- (string) : The proper onload to use in body.
- Example: list($html,$onload)=templateEditForm($mylinkdb['20110805_124532']);
- echo $html;
-*/
-function templateEditForm($link,$link_is_new=false)
+// Template for the list of links (<div id="linklist">)
+// This function fills all the necessary fields in the $PAGE for the template 'linklist.html'
+function buildLinkList($PAGE)
{
- $url=htmlspecialchars($link['url']);
- $title=htmlspecialchars($link['title']);
- $tags=htmlspecialchars($link['tags']);
- $description=htmlspecialchars($link['description']);
- $private = ($link['private']==0 ? '' : 'checked="yes"');
-
- // Automatically focus on empty fields:
- $onload='onload="document.linkform.lf_tags.focus();"';
- if ($description=='') $onload='onload="document.linkform.lf_description.focus();"';
- if ($title=='') $onload='onload="document.linkform.lf_title.focus();"';
-
- // Do not show "Delete" button if this is a new link.
- $delete_button = '<input type="submit" value="Delete" name="delete_link" class="bigbutton" style="margin-left:180px;" onClick="return confirmDeleteLink();">';
- if ($link_is_new) $delete_button='';
-
- $token=getToken(); // XSRF protection.
- $returnurl_html = (isset($_SERVER['HTTP_REFERER']) ? '<input type="hidden" name="returnurl" value="'.htmlspecialchars($_SERVER['HTTP_REFERER']).'">' : '');
- $editlinkform=<<<HTML
-<div id="editlinkform">
- <form method="post" name="linkform">
- <input type="hidden" name="lf_linkdate" value="{$link['linkdate']}">
- <i>URL</i><br><input type="text" name="lf_url" value="{$url}" style="width:100%"><br>
- <i>Title</i><br><input type="text" name="lf_title" value="{$title}" style="width:100%"><br>
- <i>Description</i><br><textarea name="lf_description" rows="4" cols="25" style="width:100%">{$description}</textarea><br>
- <i>Tags</i><br><input type="text" name="lf_tags" value="{$tags}" style="width:100%"><br>
- <input type="checkbox" {$private} style="margin:7 0 10 0;" name="lf_private"> <i>Private</i><br>
- <input type="submit" value="Save" name="save_edit" class="bigbutton" style="margin-left:40px;">
- <input type="submit" value="Cancel" name="cancel_edit" class="bigbutton" style="margin-left:40px;">
- {$delete_button}
- <input type="hidden" name="token" value="{$token}">
- {$returnurl_html}
- </form>
-</div>
-HTML;
- return array($editlinkform,$onload);
-}
-
+ global $LINKSDB; // Get the links database.
-// -----------------------------------------------------------------------------------------------
-// Template for the list of links.
-// Returns html code to show the list of link according to parameters passed in URL (search terms, page...)
-function templateLinkList()
-{
- global $LINKSDB;
-
- // Search according to entered search terms:
+ // ---- Filter link database according to parameters
$linksToDisplay=array();
- $searched='';
+ $search_type='';
+ $search_crits='';
if (!empty($_GET['searchterm'])) // Fulltext search
{
- $linksToDisplay = $LINKSDB->filterFulltext($_GET['searchterm']);
- $searched=' <b>'.count($linksToDisplay).' results for <i>'.htmlspecialchars($_GET['searchterm']).'</i></b>:';
+ $linksToDisplay = $LINKSDB->filterFulltext(trim($_GET['searchterm']));
+ $search_crits=htmlspecialchars(trim($_GET['searchterm']));
+ $search_type='fulltext';
}
elseif (!empty($_GET['searchtags'])) // Search by tag
{
- $linksToDisplay = $LINKSDB->filterTags($_GET['searchtags']);
- $tagshtml=''; foreach(explode(' ',$_GET['searchtags']) as $tag) $tagshtml.='<span class="linktag" title="Remove tag"><a href="?removetag='.htmlspecialchars($tag).'">'.htmlspecialchars($tag).' <span style="border-left:1px solid #aaa; padding-left:5px; color:#6767A7;">x</span></a></span> ';
- $searched=' <b>'.count($linksToDisplay).' results for tags '.$tagshtml.':</b>';
+ $linksToDisplay = $LINKSDB->filterTags(trim($_GET['searchtags']));
+ $search_crits=explode(' ',trim($_GET['searchtags']));
+ $search_type='tags';
+ }
+ elseif (isset($_SERVER['QUERY_STRING']) && preg_match('/[a-zA-Z0-9-_@]{6}(&.+?)?/',$_SERVER['QUERY_STRING'])) // Detect smallHashes in URL
+ {
+ $linksToDisplay = $LINKSDB->filterSmallHash(substr(trim($_SERVER["QUERY_STRING"], '/'),0,6));
+ $search_type='permalink';
}
else
$linksToDisplay = $LINKSDB; // otherwise, display without filtering.
-
- $linklist='';
- $actions='';
- // Handle paging.
+ // Option: Show only private links
+ if (!empty($_SESSION['privateonly']))
+ {
+ $tmp = array();
+ foreach($linksToDisplay as $linkdate=>$link)
+ {
+ if ($link['private']!=0) $tmp[$linkdate]=$link;
+ }
+ $linksToDisplay=$tmp;
+ }
+
+ // ---- Handle paging.
/* Can someone explain to me why you get the following error when using array_keys() on an object which implements the interface ArrayAccess ???
"Warning: array_keys() expects parameter 1 to be array, object given in ... "
If my class implements ArrayAccess, why won't array_keys() accept it ? ( $keys=array_keys($linksToDisplay); )
*/
$keys=array(); foreach($linksToDisplay as $key=>$value) { $keys[]=$key; } // Stupid and ugly. Thanks php.
+
+ // If there is only a single link, we change on-the-fly the title of the page.
+ if (count($linksToDisplay)==1) $GLOBALS['pagetitle'] = $linksToDisplay[$keys[0]]['title'].' - '.$GLOBALS['title'];
+
+ // Select articles according to paging.
$pagecount = ceil(count($keys)/$_SESSION['LINKS_PER_PAGE']);
$pagecount = ($pagecount==0 ? 1 : $pagecount);
$page=( empty($_GET['page']) ? 1 : intval($_GET['page']));
$page = ( $page<1 ? 1 : $page );
$page = ( $page>$pagecount ? $pagecount : $page );
$i = ($page-1)*$_SESSION['LINKS_PER_PAGE']; // Start index.
- $end = $i+$_SESSION['LINKS_PER_PAGE'];
+ $end = $i+$_SESSION['LINKS_PER_PAGE'];
+ $linkDisp=array(); // Links to display
while ($i<$end && $i<count($keys))
- {
+ {
$link = $linksToDisplay[$keys[$i]];
- $description=$link['description'];
+ $link['description']=nl2br(keepMultipleSpaces(text2clickable(htmlspecialchars($link['description']))));
$title=$link['title'];
- $classprivate = ($link['private']==0 ? '' : 'class="private"');
- if (isLoggedIn()) $actions=' <form method="GET" class="buttoneditform"><input type="hidden" name="edit_link" value="'.$link['linkdate'].'"><input type="submit" value="Edit" class="smallbutton"></form>';
- $tags='';
- if ($link['tags']!='') foreach(explode(' ',$link['tags']) as $tag) { $tags.='<span class="linktag" title="Add tag"><a href="?addtag='.htmlspecialchars($tag).'">'.htmlspecialchars($tag).'</a></span> '; }
- $linklist.='<li '.$classprivate.'><span class="linktitle"><a href="'.htmlspecialchars($link['url']).'">'.htmlspecialchars($title).'</a></span>'.$actions.'<br>';
- if ($description!='') $linklist.='<div class="linkdescription">'.nl2br(htmlspecialchars($description)).'</div><br>';
- $linklist.='<span class="linkdate">'.htmlspecialchars(linkdate2locale($link['linkdate'])).' - </span><span class="linkurl">'.htmlspecialchars($link['url']).'</span><br>'.$tags."</li>\n";
+ $classLi = $i%2!=0 ? '' : 'publicLinkHightLight';
+ $link['class'] = ($link['private']==0 ? $classLi : 'private');
+ $link['localdate']=linkdate2locale($link['linkdate']);
+ $link['taglist']=explode(' ',$link['tags']);
+ $linkDisp[$keys[$i]] = $link;
$i++;
- }
+ }
- // Show paging.
+ // Compute paging navigation
$searchterm= ( empty($_GET['searchterm']) ? '' : '&searchterm='.$_GET['searchterm'] );
$searchtags= ( empty($_GET['searchtags']) ? '' : '&searchtags='.$_GET['searchtags'] );
- $paging='';
- if ($i!=count($keys)) $paging.='<a href="?page='.($page+1).$searchterm.$searchtags.'">◄Older</a>';
- $paging.= '<span style="color:#fff; padding:0 20 0 20;">page '.$page.' / '.$pagecount.'</span>';
- if ($page>1) $paging.='<a href="?page='.($page-1).$searchterm.$searchtags.'">Newer►</a>';
- $linksperpage = <<<HTML
-<div style="float:right; padding-right:5px;">
-Links per page: <a href="?linksperpage=20">20</a> <a href="?linksperpage=50">50</a> <a href="?linksperpage=100">100</a>
- <form method="GET" style="display:inline;"><input type="text" name="linksperpage" size="2" style="height:15px;"></form></div>
-HTML;
- $paging = '<div class="paging">'.$linksperpage.$paging.'</div>';
- $linklist='<div id="linklist">'.$paging.$searched.'<ul>'.$linklist.'</ul>'.$paging.'</div>';
- return $linklist;
+ $paging='';
+ $previous_page_url=''; if ($i!=count($keys)) $previous_page_url='?page='.($page+1).$searchterm.$searchtags;
+ $next_page_url='';if ($page>1) $next_page_url='?page='.($page-1).$searchterm.$searchtags;
+
+ $token = ''; if (isLoggedIn()) $token=getToken();
+
+ // Fill all template fields.
+ $PAGE->assign('previous_page_url',$previous_page_url);
+ $PAGE->assign('next_page_url',$next_page_url);
+ $PAGE->assign('page_current',$page);
+ $PAGE->assign('page_max',$pagecount);
+ $PAGE->assign('result_count',count($linksToDisplay));
+ $PAGE->assign('search_type',$search_type);
+ $PAGE->assign('search_crits',$search_crits);
+ $PAGE->assign('redirector',empty($GLOBALS['redirector']) ? '' : $GLOBALS['redirector']); // optional redirector URL
+ $PAGE->assign('token',$token);
+ $PAGE->assign('links',$linkDisp);
+ return;
}
-// -----------------------------------------------------------------------------------------------
-// Template for the whole page.
-/* Input: $data (associative array).
- Keys: 'body' : body of HTML document
- 'pageheader' : html code to show in page header (top of page)
- 'onload' : optional onload javascript for the <body>
-*/
-function templatePage($data)
+// Compute the thumbnail for a link.
+//
+// with a link to the original URL.
+// Understands various services (youtube.com...)
+// Input: $url = url for which the thumbnail must be found.
+// $href = if provided, this URL will be followed instead of $url
+// Returns an associative array with thumbnail attributes (src,href,width,height,style,alt)
+// Some of them may be missing.
+// Return an empty array if no thumbnail available.
+function computeThumbnail($url,$href=false)
{
- global $STARTTIME;
- global $LINKSDB;
- $shaarli_version = shaarli_version;
- $linkcount = count($LINKSDB);
- $menu=(isLoggedIn() ? ' <a href="?do=logout">Logout</a> <a href="?do=tools">Tools</a> <a href="?do=addlink"><b>Add link</b></a>' : ' <a href="?do=login">Login</a>');
- foreach(array('pageheader','body','onload') as $k) // make sure all required fields exist (put an empty string if not).
- {
- if (!array_key_exists($k,$data)) $data[$k]='';
- }
- $feedurl=htmlspecialchars(serverUrl().$_SERVER['SCRIPT_NAME'].'?do=rss');
- echo <<<HTML
-<html>
-<head>
-<title>Shaarli - Let's shaare your links...</title>
-<link rel="alternate" type="application/rss+xml" href="{$feedurl}">
-<style type="text/css">
-<!--
-/* CSS Reset from Yahoo to cope with browsers CSS inconsistencies. */
-/*
-Copyright (c) 2010, Yahoo! Inc. All rights reserved. Code licensed under the BSD License: http://developer.yahoo.com/yui/license.html
-version: 2.8.2r1
-*/
-html{color:#000;background:#FFF;}body,div,dl,dt,dd,ul,ol,li,h1,h2,h3,h4,h5,h6,pre,code,form,fieldset,legend,input,button,textarea,p,blockquote,th,td{margin:0;padding:0;}table{border-collapse:collapse;border-spacing:0;}fieldset,img{border:0;}address,caption,cite,code,dfn,em,strong,th,var,optgroup{font-style:inherit;font-weight:inherit;}del,ins{text-decoration:none;}li{list-style:none;}caption,th{text-align:left;}h1,h2,h3,h4,h5,h6{font-size:100%;font-weight:normal;}q:before,q:after{content:'';}abbr,acronym{border:0;font-variant:normal;}sup{vertical-align:baseline;}sub{vertical-align:baseline;}legend{color:#000;}input,button,textarea,select,optgroup,option{font-family:inherit;font-size:inherit;font-style:inherit;font-weight:inherit;}input,button,textarea,select{*font-size:100%;}
+ if (!$GLOBALS['config']['ENABLE_THUMBNAILS']) return array();
+ if ($href==false) $href=$url;
-body { font-family: "Trebuchet MS",Verdana,Arial,Helvetica,sans-serif; font-size:10pt; background-color: #ffffff; }
-input { border: 1px solid #aaa; background-color:#F0F0FF; padding: 2 5 2 5; -moz-box-shadow: inset 2px 2px 3px #aaaaaa; -webkit-box-shadow: inset 2px 2px 3px #aaaaaa; box-shadow: inset 2px 2px 3px #aaaaaa; }
-textarea { border: 1px solid #aaa; background-color:#F0F0FF; padding: 2 5 2 5; -moz-box-shadow: inset 2px 2px 3px #B2B2C4; -webkit-box-shadow: inset 2px 2px 3px #B2B2C4; box-shadow: inset 2px 2px 3px #B2B2C4; }
-/* I don't give a shit about IE. He can't understand selectors such as input[type='submit']. */
+ // For most hosts, the URL of the thumbnail can be easily deduced from the URL of the link.
+ // (eg. http://www.youtube.com/watch?v=spVypYk4kto ---> http://img.youtube.com/vi/spVypYk4kto/default.jpg )
+ // ^^^^^^^^^^^ ^^^^^^^^^^^
+ $domain = parse_url($url,PHP_URL_HOST);
+ if ($domain=='youtube.com' || $domain=='www.youtube.com')
+ {
+ parse_str(parse_url($url,PHP_URL_QUERY), $params); // Extract video ID and get thumbnail
+ if (!empty($params['v'])) return array('src'=>'http://img.youtube.com/vi/'.$params['v'].'/default.jpg',
+ 'href'=>$href,'width'=>'120','height'=>'90','alt'=>'YouTube thumbnail');
+ }
+ if ($domain=='youtu.be') // Youtube short links
+ {
+ $path = parse_url($url,PHP_URL_PATH);
+ return array('src'=>'http://img.youtube.com/vi'.$path.'/default.jpg',
+ 'href'=>$href,'width'=>'120','height'=>'90','alt'=>'YouTube thumbnail');
+ }
+ if ($domain=='pix.toile-libre.org') // pix.toile-libre.org image hosting
+ {
+ parse_str(parse_url($url,PHP_URL_QUERY), $params); // Extract image filename.
+ if (!empty($params) && !empty($params['img'])) return array('src'=>'http://pix.toile-libre.org/upload/thumb/'.urlencode($params['img']),
+ 'href'=>$href,'style'=>'max-width:120px; max-height:150px','alt'=>'pix.toile-libre.org thumbnail');
+ }
+
+ if ($domain=='imgur.com')
+ {
+ $path = parse_url($url,PHP_URL_PATH);
+ if (startsWith($path,'/a/')) return array(); // Thumbnails for albums are not available.
+ if (startsWith($path,'/r/')) return array('src'=>'http://i.imgur.com/'.basename($path).'s.jpg',
+ 'href'=>$href,'width'=>'90','height'=>'90','alt'=>'imgur.com thumbnail');
+ if (startsWith($path,'/gallery/')) return array('src'=>'http://i.imgur.com'.substr($path,8).'s.jpg',
+ 'href'=>$href,'width'=>'90','height'=>'90','alt'=>'imgur.com thumbnail');
-.bigbutton {border-style:outset;border-width:2px;padding:3px 6px;background-color:rgb(212,212,212);font-family:Tahoma,Verdana,Arial,Helvetica,sans-serif;font-size:8pt;-moz-border-radius:0.5em;border-radius:0.5em;}
-.smallbutton {border-style:outset;border-width:2px;padding:0px 4px;background-color:rgb(212,212,212);font-family:Tahoma,Verdana,Arial,Helvetica,sans-serif;font-size:8pt;-moz-border-radius:0.5em;border-radius:0.5em;}
-#pageheader
+ if (substr_count($path,'/')==1) return array('src'=>'http://i.imgur.com/'.substr($path,1).'s.jpg',
+ 'href'=>$href,'width'=>'90','height'=>'90','alt'=>'imgur.com thumbnail');
+ }
+ if ($domain=='i.imgur.com')
+ {
+ $pi = pathinfo(parse_url($url,PHP_URL_PATH));
+ if (!empty($pi['filename'])) return array('src'=>'http://i.imgur.com/'.$pi['filename'].'s.jpg',
+ 'href'=>$href,'width'=>'90','height'=>'90','alt'=>'imgur.com thumbnail');
+ }
+ if ($domain=='dailymotion.com' || $domain=='www.dailymotion.com')
+ {
+ if (strpos($url,'dailymotion.com/video/')!==false)
+ {
+ $thumburl=str_replace('dailymotion.com/video/','dailymotion.com/thumbnail/video/',$url);
+ return array('src'=>$thumburl,
+ 'href'=>$href,'width'=>'120','style'=>'height:auto;','alt'=>'DailyMotion thumbnail');
+ }
+ }
+ if (endsWith($domain,'.imageshack.us'))
+ {
+ $ext=strtolower(pathinfo($url,PATHINFO_EXTENSION));
+ if ($ext=='jpg' || $ext=='jpeg' || $ext=='png' || $ext=='gif')
+ {
+ $thumburl = substr($url,0,strlen($url)-strlen($ext)).'th.'.$ext;
+ return array('src'=>$thumburl,
+ 'href'=>$href,'width'=>'120','style'=>'height:auto;','alt'=>'imageshack.us thumbnail');
+ }
+ }
+
+ // Some other hosts are SLOW AS HELL and usually require an extra HTTP request to get the thumbnail URL.
+ // So we deport the thumbnail generation in order not to slow down page generation
+ // (and we also cache the thumbnail)
+
+ if (!$GLOBALS['config']['ENABLE_LOCALCACHE']) return array(); // If local cache is disabled, no thumbnails for services which require the use a local cache.
+
+ if ($domain=='flickr.com' || endsWith($domain,'.flickr.com')
+ || $domain=='vimeo.com'
+ || $domain=='ted.com' || endsWith($domain,'.ted.com')
+ || $domain=='xkcd.com' || endsWith($domain,'.xkcd.com')
+ )
+ {
+ if ($domain=='vimeo.com')
+ { // Make sure this vimeo url points to a video (/xxx... where xxx is numeric)
+ $path = parse_url($url,PHP_URL_PATH);
+ if (!preg_match('!/\d+.+?!',$path)) return array(); // This is not a single video URL.
+ }
+ if ($domain=='xkcd.com' || endsWith($domain,'.xkcd.com'))
+ { // Make sure this url points to a single comic (/xxx... where xxx is numeric)
+ $path = parse_url($url,PHP_URL_PATH);
+ if (!preg_match('!/\d+.+?!',$path)) return array();
+ }
+ if ($domain=='ted.com' || endsWith($domain,'.ted.com'))
+ { // Make sure this TED url points to a video (/talks/...)
+ $path = parse_url($url,PHP_URL_PATH);
+ if ("/talks/" !== substr($path,0,7)) return array(); // This is not a single video URL.
+ }
+ $sign = hash_hmac('sha256', $url, $GLOBALS['salt']); // We use the salt to sign data (it's random, secret, and specific to each installation)
+ return array('src'=>indexUrl().'?do=genthumbnail&hmac='.htmlspecialchars($sign).'&url='.urlencode($url),
+ 'href'=>$href,'width'=>'120','style'=>'height:auto;','alt'=>'thumbnail');
+ }
+
+ // For all other, we try to make a thumbnail of links ending with .jpg/jpeg/png/gif
+ // Technically speaking, we should download ALL links and check their Content-Type to see if they are images.
+ // But using the extension will do.
+ $ext=strtolower(pathinfo($url,PATHINFO_EXTENSION));
+ if ($ext=='jpg' || $ext=='jpeg' || $ext=='png' || $ext=='gif')
+ {
+ $sign = hash_hmac('sha256', $url, $GLOBALS['salt']); // We use the salt to sign data (it's random, secret, and specific to each installation)
+ return array('src'=>indexUrl().'?do=genthumbnail&hmac='.htmlspecialchars($sign).'&url='.urlencode($url),
+ 'href'=>$href,'width'=>'120','style'=>'height:auto;','alt'=>'thumbnail');
+ }
+ return array(); // No thumbnail.
+
+}
+
+
+// Returns the HTML code to display a thumbnail for a link
+// with a link to the original URL.
+// Understands various services (youtube.com...)
+// Input: $url = url for which the thumbnail must be found.
+// $href = if provided, this URL will be followed instead of $url
+// Returns '' if no thumbnail available.
+function thumbnail($url,$href=false)
{
-color:#eee;
-border-bottom: 1px solid #aaa;
-background-color: #6A6A6A;
-background-image: -webkit-gradient(linear, left top, left bottom, from(#6A6A6A), to(#303030)); /* Saf4+, Chrome */
-background-image: -webkit-linear-gradient(top, #6A6A6A, #303030); /* Chrome 10+, Saf5.1+ */
-background-image: -moz-linear-gradient(top, #6A6A6A, #303030); /* FF3.6 */
-background-image: -ms-linear-gradient(top, #6A6A6A, #303030); /* IE10 */
-background-image: -o-linear-gradient(top, #6A6A6A, #303030); /* Opera 11.10+ */
-background-image: linear-gradient(top, #6A6A6A, #303030);
-filter: progid:DXImageTransform.Microsoft.gradient(startColorStr='#6A6A6A', EndColorStr='#303030'); /* IE6-IE9 */
-padding-bottom: 5px;
+ $t = computeThumbnail($url,$href);
+ if (count($t)==0) return ''; // Empty array = no thumbnail for this URL.
+
+ $html='<a href="'.htmlspecialchars($t['href']).'"><img src="'.htmlspecialchars($t['src']).'"';
+ if (!empty($t['width'])) $html.=' width="'.htmlspecialchars($t['width']).'"';
+ if (!empty($t['height'])) $html.=' height="'.htmlspecialchars($t['height']).'"';
+ if (!empty($t['style'])) $html.=' style="'.htmlspecialchars($t['style']).'"';
+ if (!empty($t['alt'])) $html.=' alt="'.htmlspecialchars($t['alt']).'"';
+ $html.='></a>';
+ return $html;
}
-#pageheader a:link { color:#bbb; text-decoration:none;}
-#pageheader a:visited { color:#bbb; text-decoration:none;}
-#pageheader a:hover { color:#FFFFC9; text-decoration:none;}
-#pageheader a:active { color:#bbb; text-decoration:none;}
-.paging { background-color:#777; color:#ccc; text-align:center; padding:0 0 3 0;}
-.paging a:link { color:#ccc; text-decoration:none;}
-.paging a:visited { color:#ccc; }
-.paging a:hover { color:#FFFFC9; }
-.paging a:active { color:#fff; }
-#headerform { padding:5 5 5 15; }
-#editlinkform { padding:5 5 5 15px; width:80%; }
-#linklist li { padding:4 10 8 20; border-bottom: 1px solid #bbb;}
-#linklist li.private { background-color: #ccc; border-left:8px solid #888; }
-.linktitle { font-size:14pt; font-weight:bold; }
-.linktitle a { text-decoration: none; color:#0000EE; }
-.linktitle a:hover { text-decoration: underline; }
-.linktitle a:visited { color:#0000BB; }
-.linkdate { font-size:8pt; color:#888; }
-.linkurl { font-size:8pt; color:#4BAA74; }
-.linkdescription { color:#000; margin-top:0px; margin-bottom:0px; font-weight:normal; }
-.linktag { font-size:9pt; color:#777; background-color:#ddd; padding:0 6 0 6; -moz-box-shadow: inset 2px 2px 3px #ffffff; -webkit-box-shadow: inset 2px 2px 3px #ffffff; box-shadow: inset 2px 2px 3px ffffff;
-border-bottom:1px solid #aaa; border-right:1px solid #aaa; }
-.linktag a { color:#777; text-decoration:none; }
-.buttoneditform { display:inline; }
-#footer { font-size:8pt; text-align:center; border-top:1px solid #ddd; color: #888; }
--->
-</style>
-</head>
-<body {$data['onload']}>
-<div id="pageheader"><div style="float:right; font-style:italic; color:#bbb; text-align:right; padding:0 5 0 0;">Shaare your links...<br>{$linkcount} links</div>
- <b><i>Shaarli {$shaarli_version}</i></b> - <a href="?">Home</a> {$menu} <a href="{$feedurl}" style="padding-left:30px;">RSS Feed</a>
-{$data['pageheader']}
-</div>
-{$data['body']}
-HTML;
- $exectime = round(microtime(true)-$STARTTIME,4);
- echo '<div id="footer"><b><a href="http://sebsauvage.net/wiki/doku.php?id=php:shaarli">Shaarli '.shaarli_version.'</a></b> - The personal, minimalist, super-fast, no-database delicious clone. By sebsauvage.net<br>Who gives a shit that this page was generated in '.$exectime.' seconds ?</div>';
- if (isLoggedIn()) echo '<script language="JavaScript">function confirmDeleteLink() { var agree=confirm("Are you sure you want to delete this link ?"); if (agree) return true ; else return false ; }</script>';
- echo '</body></html>';
+
+// Returns the HTML code to display a thumbnail for a link
+// for the picture wall (using lazy image loading)
+// Understands various services (youtube.com...)
+// Input: $url = url for which the thumbnail must be found.
+// $href = if provided, this URL will be followed instead of $url
+// Returns '' if no thumbnail available.
+function lazyThumbnail($url,$href=false)
+{
+ $t = computeThumbnail($url,$href);
+ if (count($t)==0) return ''; // Empty array = no thumbnail for this URL.
+
+ $html='<a href="'.htmlspecialchars($t['href']).'">';
+
+ // Lazy image (only loaded by javascript when in the viewport).
+ $html.='<img class="lazyimage" src="#" data-original="'.htmlspecialchars($t['src']).'"';
+ if (!empty($t['width'])) $html.=' width="'.htmlspecialchars($t['width']).'"';
+ if (!empty($t['height'])) $html.=' height="'.htmlspecialchars($t['height']).'"';
+ if (!empty($t['style'])) $html.=' style="'.htmlspecialchars($t['style']).'"';
+ if (!empty($t['alt'])) $html.=' alt="'.htmlspecialchars($t['alt']).'"';
+ $html.='>';
+
+ // No-javascript fallback:
+ $html.='<noscript><img src="'.htmlspecialchars($t['src']).'"';
+ if (!empty($t['width'])) $html.=' width="'.htmlspecialchars($t['width']).'"';
+ if (!empty($t['height'])) $html.=' height="'.htmlspecialchars($t['height']).'"';
+ if (!empty($t['style'])) $html.=' style="'.htmlspecialchars($t['style']).'"';
+ if (!empty($t['alt'])) $html.=' alt="'.htmlspecialchars($t['alt']).'"';
+ $html.='></noscript></a>';
+
+ return $html;
}
+
// -----------------------------------------------------------------------------------------------
// Installation
// This function should NEVER be called if the file data/config.php exists.
function install()
{
+ // On free.fr host, make sure the /sessions directory exists, otherwise login will not work.
+ if (endsWith($_SERVER['SERVER_NAME'],'.free.fr') && !is_dir($_SERVER['DOCUMENT_ROOT'].'/sessions')) mkdir($_SERVER['DOCUMENT_ROOT'].'/sessions',0705);
+
if (!empty($_POST['setlogin']) && !empty($_POST['setpassword']))
{
- $tz=(empty($_POST['settimezone']) ? 'UTC':$_POST['settimezone']);
+ $tz = 'UTC';
+ if (!empty($_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.
- $salt=sha1(uniqid('',true).'_'.mt_rand()); // Salt renders rainbow-tables attacks useless.
- $hash = sha1($_POST['setpassword'].$_POST['setlogin'].$salt);
- $config='<?php $GLOBALS[\'login\']='.var_export($_POST['setlogin'],true).'; $GLOBALS[\'hash\']='.var_export($hash,true).'; $GLOBALS[\'salt\']='.var_export($salt,true).'; date_default_timezone_set('.var_export($tz,true).'); ?>';
- file_put_contents(CONFIG_FILE,$config);
- echo '<script language="JavaScript">alert("Shaarli is now configured. Please enter your login/password and start shaaring your links !");document.location=\'?do=login\';</script>';
- exit;
- }
+ $GLOBALS['login'] = $_POST['setlogin'];
+ $GLOBALS['salt'] = sha1(uniqid('',true).'_'.mt_rand()); // Salt renders rainbow-tables attacks useless.
+ $GLOBALS['hash'] = sha1($_POST['setpassword'].$GLOBALS['login'].$GLOBALS['salt']);
+ $GLOBALS['title'] = (empty($_POST['title']) ? 'Shared links on '.htmlspecialchars(indexUrl()) : $_POST['title'] );
+ writeConfig();
+ echo '<script language="JavaScript">alert("Shaarli is now configured. Please enter your login/password and start shaaring your links !");document.location=\'?do=login\';</script>';
+ exit;
+ }
+
// Display config form:
- $timezoneselect='';
+ list($timezone_form,$timezone_js) = templateTZform();
+ $timezone_html=''; if ($timezone_form!='') $timezone_html='<tr><td valign="top"><b>Timezone:</b></td><td>'.$timezone_form.'</td></tr>';
+
+ $PAGE = new pageBuilder;
+ $PAGE->assign('timezone_html',$timezone_html);
+ $PAGE->assign('timezone_js',$timezone_js);
+ $PAGE->renderPage('install');
+ exit;
+}
+
+// Generates the timezone selection form and javascript.
+// Input: (optional) current timezone (can be 'UTC/UTC'). It will be pre-selected.
+// Output: array(html,js)
+// Example: list($htmlform,$js) = templateTZform('Europe/Paris'); // Europe/Paris pre-selected.
+// Returns array('','') if server does not support timezones list. (eg. php 5.1 on free.fr)
+function templateTZform($ptz=false)
+{
if (function_exists('timezone_identifiers_list')) // because of old php version (5.1) which can be found on free.fr
{
- $timezones='';
- foreach(timezone_identifiers_list() as $tz) $timezones.='<option value="'.htmlspecialchars($tz).'">'.htmlspecialchars($tz)."</option>\n";
- $timezoneselect='Timezone: <select name="settimezone"><option value="" selected>(please select:)</option>'.$timezones.'</select><br><br>';
- }
- echo <<<HTML
-<html><title>Shaarli - Configuration</title><style type="text/css">
-body { font-family: "Trebuchet MS",Verdana,Arial,Helvetica,sans-serif; font-size:10pt; background-color: #ffffff; }
-input { border: 1px solid #aaa; background-color:#F0F0FF; padding: 2 5 2 5; -moz-box-shadow: inset 2px 2px 3px #aaaaaa; -webkit-box-shadow: inset 2px 2px 3px #aaaaaa; box-shadow: inset 2px 2px 3px #aaaaaa; }
-.bigbutton {border-style:outset;border-width:2px;padding:3px 6px;background-color:rgb(212,212,212);font-family:Tahoma,Verdana,Arial,Helvetica,sans-serif;font-size:8pt;-moz-border-radius:0.5em;border-radius:0.5em;}
-</style></head><body onload="document.configform.setlogin.focus();"><h1>Shaarli - Shaare your links...</h1>It looks like it's the first time you run Shaarli. Please chose a login/password and a timezone:<br>
-<form method="POST" action="" name="configform" style="border:1px solid black; padding:10 10 10 10;">
-Login: <input type="text" name="setlogin"><br><br>Password: <input type="password" name="setpassword"><br><br>
-{$timezoneselect}
-<input type="submit" name="Save" value="Save config" class="bigbutton"></form></body></html>
-HTML;
- exit;
+ // Try to split the provided timezone.
+ if ($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]=array();
+ $cities[$continent].='<option value="'.$city.'"'.($pcity==$city?'selected':'').'>'.$city.'</option>';
+ }
+ }
+ $continents_html = '';
+ $continents = array_keys($continents);
+ foreach($continents as $continent)
+ $continents_html.='<option value="'.$continent.'"'.($pcontinent==$continent?'selected':'').'>'.$continent.'</option>';
+ $cities_html = $cities[$pcontinent];
+ $timezone_form = "Continent: <select name=\"continent\" id=\"continent\" onChange=\"onChangecontinent();\">${continents_html}</select><br /><br />";
+ $timezone_form .= "City: <select name=\"city\" id=\"city\">${cities[$pcontinent]}</select><br /><br />";
+ $timezone_js = "<script language=\"JavaScript\">";
+ $timezone_js .= "function onChangecontinent(){document.getElementById(\"city\").innerHTML = citiescontinent[document.getElementById(\"continent\").value];}";
+ $timezone_js .= "var citiescontinent = ".json_encode($cities).";" ;
+ $timezone_js .= "</script>" ;
+ return array($timezone_form,$timezone_js);
+ }
+ return array('','');
+}
+
+// Tells if a timezone is valid or not.
+// If not valid, returns false.
+// If system does not support timezone list, returns false.
+function isTZvalid($continent,$city)
+{
+ $tz = $continent.'/'.$city;
+ if (function_exists('timezone_identifiers_list')) // because of old php version (5.1) which can be found on free.fr
+ {
+ if (in_array($tz, timezone_identifiers_list())) // it's a valid timezone ?
+ return true;
+ }
+ return false;
+}
+
+
+// Webservices (for use with jQuery/jQueryUI)
+// eg. index.php?ws=tags&term=minecr
+function processWS()
+{
+ if (empty($_GET['ws']) || empty($_GET['term'])) return;
+ $term = $_GET['term'];
+ global $LINKSDB;
+ header('Content-Type: application/json; charset=utf-8');
+
+ // Search in tags (case insentitive, cumulative search)
+ if ($_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']='';
+ $config='<?php $GLOBALS[\'login\']='.var_export($GLOBALS['login'],true).'; $GLOBALS[\'hash\']='.var_export($GLOBALS['hash'],true).'; $GLOBALS[\'salt\']='.var_export($GLOBALS['salt'],true).'; ';
+ $config .='$GLOBALS[\'timezone\']='.var_export($GLOBALS['timezone'],true).'; date_default_timezone_set('.var_export($GLOBALS['timezone'],true).'); $GLOBALS[\'title\']='.var_export($GLOBALS['title'],true).';';
+ $config .= '$GLOBALS[\'redirector\']='.var_export($GLOBALS['redirector'],true).'; ';
+ $config .= ' ?>';
+ if (!file_put_contents($GLOBALS['config']['CONFIG_FILE'],$config) || strcmp(file_get_contents($GLOBALS['config']['CONFIG_FILE']),$config)!=0)
+ {
+ echo '<script language="JavaScript">alert("Shaarli could not create the config file. Please make sure Shaarli has the right to write in the folder is it installed in.");document.location=\'?\';</script>';
+ exit;
+ }
+}
+
+/* Because some f*cking services like Flickr require an extra HTTP request to get the thumbnail URL,
+ I have deported the thumbnail URL code generation here, otherwise this would slow down page generation.
+ The following function takes the URL a link (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()
+{
+ // Make sure the parameters in the URL were generated by us.
+ $sign = hash_hmac('sha256', $_GET['url'], $GLOBALS['salt']);
+ if ($sign!=$_GET['hmac']) die('Naughty boy !');
+
+ // Let's see if we don't already have the image for this URL in the cache.
+ $thumbname=hash('sha1',$_GET['url']).'.jpg';
+ if (is_file($GLOBALS['config']['CACHEDIR'].'/'.$thumbname))
+ { // We have the thumbnail, just serve it:
+ header('Content-Type: image/jpeg');
+ echo file_get_contents($GLOBALS['config']['CACHEDIR'].'/'.$thumbname);
+ return;
+ }
+ // We may also serve a blank image (if service did not respond)
+ $blankname=hash('sha1',$_GET['url']).'.gif';
+ if (is_file($GLOBALS['config']['CACHEDIR'].'/'.$blankname))
+ {
+ header('Content-Type: image/gif');
+ echo file_get_contents($GLOBALS['config']['CACHEDIR'].'/'.$blankname);
+ return;
+ }
+
+ // Otherwise, generate the thumbnail.
+ $url = $_GET['url'];
+ $domain = parse_url($url,PHP_URL_HOST);
+
+ if ($domain=='flickr.com' || endsWith($domain,'.flickr.com'))
+ {
+ // WTF ? I need a flickr API key to get a fucking thumbnail ? No way.
+ // I'll extract the thumbnail URL myself. First, we have to get the flickr HTML page.
+ // All images in Flickr are in the form:
+ // http://farm[farm].static.flickr.com/[server]/[id]_[secret]_[size].jpg
+ // Example: http://farm7.static.flickr.com/6205/6088513739_fc158467fe_z.jpg
+ // We want the 240x120 format, which is _m.jpg.
+ // We search for the first image in the page which does not have the _s size,
+ // when use the _m to get the thumbnail.
+
+ // 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.static.flickr.com/5/5921913_ac83ed27bd_o.jpg
+ preg_match('!(http://farm\d+.static.flickr.com/\d+/\d+_\w+_)\w.jpg!',$url,$matches);
+ if (!empty($matches[1])) $imageurl=$matches[1].'m.jpg';
+ }
+ else // this is a flickr page (html)
+ {
+ list($httpstatus,$headers,$data) = getHTTP($url,20); // Get the flickr html page.
+ if (strpos($httpstatus,'200 OK')!==false)
+ {
+ preg_match('!(http://farm\d+.static.flickr.com/\d+/\d+_\w+_)[^s].jpg!',$data,$matches);
+ if (!empty($matches[1])) $imageurl=$matches[1].'m.jpg';
+ }
+ }
+ if ($imageurl!='')
+ { // Let's download the image.
+ list($httpstatus,$headers,$data) = getHTTP($imageurl,10); // Image is 240x120, so 10 seconds to download should be enough.
+ if (strpos($httpstatus,'200 OK')!==false)
+ {
+ file_put_contents($GLOBALS['config']['CACHEDIR'].'/'.$thumbname,$data); // Save image to cache.
+ header('Content-Type: image/jpeg');
+ echo $data;
+ return;
+ }
+ }
+ }
+
+ elseif ($domain=='vimeo.com' )
+ {
+ // This is more complex: we have to perform a HTTP request, then parse the result.
+ // Maybe we should deport this to javascript ? Example: http://stackoverflow.com/questions/1361149/get-img-thumbnails-from-vimeo/4285098#4285098
+ $vid = substr(parse_url($url,PHP_URL_PATH),1);
+ list($httpstatus,$headers,$data) = getHTTP('http://vimeo.com/api/v2/video/'.htmlspecialchars($vid).'.php',5);
+ if (strpos($httpstatus,'200 OK')!==false)
+ {
+ $t = unserialize($data);
+ $imageurl = $t[0]['thumbnail_medium'];
+ // Then we download the image and serve it to our client.
+ list($httpstatus,$headers,$data) = getHTTP($imageurl,10);
+ if (strpos($httpstatus,'200 OK')!==false)
+ {
+ file_put_contents($GLOBALS['config']['CACHEDIR'].'/'.$thumbname,$data); // Save image to cache.
+ header('Content-Type: image/jpeg');
+ echo $data;
+ return;
+ }
+ }
+ }
+
+ elseif ($domain=='ted.com' || endsWith($domain,'.ted.com'))
+ {
+ // The thumbnail for TED talks is located in the <link rel="image_src" [...]> tag on that page
+ // http://www.ted.com/talks/mikko_hypponen_fighting_viruses_defending_the_net.html
+ // <link rel="image_src" href="http://images.ted.com/images/ted/28bced335898ba54d4441809c5b1112ffaf36781_389x292.jpg" />
+ list($httpstatus,$headers,$data) = getHTTP($url,5);
+ if (strpos($httpstatus,'200 OK')!==false)
+ {
+ // Extract the link to the thumbnail
+ preg_match('!link rel="image_src" href="(http://images.ted.com/images/ted/.+_\d+x\d+\.jpg)"!',$data,$matches);
+ if (!empty($matches[1]))
+ { // Let's download the image.
+ $imageurl=$matches[1];
+ list($httpstatus,$headers,$data) = getHTTP($imageurl,20); // No control on image size, so wait long enough.
+ if (strpos($httpstatus,'200 OK')!==false)
+ {
+ $filepath=$GLOBALS['config']['CACHEDIR'].'/'.$thumbname;
+ file_put_contents($filepath,$data); // Save image to cache.
+ if (resizeImage($filepath))
+ {
+ header('Content-Type: image/jpeg');
+ echo file_get_contents($filepath);
+ return;
+ }
+ }
+ }
+ }
+ }
+
+ elseif ($domain=='xkcd.com' || endsWith($domain,'.xkcd.com'))
+ {
+ // There is no thumbnail available for xkcd comics, so download the whole image and resize it.
+ // http://xkcd.com/327/
+ // <img src="http://imgs.xkcd.com/comics/exploits_of_a_mom.png" title="<BLABLA>" alt="<BLABLA>" />
+ list($httpstatus,$headers,$data) = getHTTP($url,5);
+ if (strpos($httpstatus,'200 OK')!==false)
+ {
+ // Extract the link to the thumbnail
+ preg_match('!<img src="(http://imgs.xkcd.com/comics/.*)" title="[^s]!',$data,$matches);
+ if (!empty($matches[1]))
+ { // Let's download the image.
+ $imageurl=$matches[1];
+ list($httpstatus,$headers,$data) = getHTTP($imageurl,20); // No control on image size, so wait long enough.
+ if (strpos($httpstatus,'200 OK')!==false)
+ {
+ $filepath=$GLOBALS['config']['CACHEDIR'].'/'.$thumbname;
+ file_put_contents($filepath,$data); // Save image to cache.
+ if (resizeImage($filepath))
+ {
+ header('Content-Type: image/jpeg');
+ echo file_get_contents($filepath);
+ return;
+ }
+ }
+ }
+ }
+ }
+
+ else
+ {
+ // For all other domains, we try to download the image and make a thumbnail.
+ list($httpstatus,$headers,$data) = getHTTP($url,30); // We allow 30 seconds max to download (and downloads are limited to 4 Mb)
+ if (strpos($httpstatus,'200 OK')!==false)
+ {
+ $filepath=$GLOBALS['config']['CACHEDIR'].'/'.$thumbname;
+ file_put_contents($filepath,$data); // Save image to cache.
+ if (resizeImage($filepath))
+ {
+ header('Content-Type: image/jpeg');
+ echo file_get_contents($filepath);
+ return;
+ }
+ }
+ }
+
+
+ // Otherwise, return an empty image (8x8 transparent gif)
+ $blankgif = base64_decode('R0lGODlhCAAIAIAAAP///////yH5BAEKAAEALAAAAAAIAAgAAAIHjI+py+1dAAA7');
+ file_put_contents($GLOBALS['config']['CACHEDIR'].'/'.$blankname,$blankgif); // Also put something in cache so that this URL is not requested twice.
+ header('Content-Type: image/gif');
+ echo $blankgif;
+}
+
+// Make a thumbnail of the image (to width: 120 pixels)
+// Returns true if success, false otherwise.
+function resizeImage($filepath)
+{
+ if (!function_exists('imagecreatefromjpeg')) return false; // GD not present: no thumbnail possible.
+
+ // Trick: some stupid people rename GIF as JPEG... or else.
+ // So we really try to open each image type whatever the extension is.
+ $header=file_get_contents($filepath,false,NULL,0,256); // Read first 256 bytes and try to sniff file type.
+ $im=false;
+ $i=strpos($header,'GIF8'); if (($i!==false) && ($i==0)) $im = imagecreatefromgif($filepath); // Well this is crude, but it should be enough.
+ $i=strpos($header,'PNG'); if (($i!==false) && ($i==1)) $im = imagecreatefrompng($filepath);
+ $i=strpos($header,'JFIF'); if ($i!==false) $im = imagecreatefromjpeg($filepath);
+ if (!$im) return false; // Unable to open image (corrupted or not an image)
+ $w = imagesx($im);
+ $h = imagesy($im);
+ $ystart = 0; $yheight=$h;
+ if ($h>$w) { $ystart= ($h/2)-($w/2); $yheight=$w/2; }
+ $nw = 120; // Desired width
+ $nh = min(floor(($h*$nw)/$w),120); // Compute new width/height, but maximum 120 pixels height.
+ // Resize image:
+ $im2 = imagecreatetruecolor($nw,$nh);
+ imagecopyresampled($im2, $im, 0, 0, 0, $ystart, $nw, $nh, $w, $yheight);
+ imageinterlace($im2,true); // For progressive JPEG.
+ $tempname=$filepath.'_TEMP.jpg';
+ imagejpeg($im2, $tempname, 90);
+ imagedestroy($im);
+ imagedestroy($im2);
+ rename($tempname,$filepath); // Overwrite original picture with thumbnail.
+ return true;
+}
+
+// Invalidate caches when the database is changed or the user logs out.
+// (eg. tags cache).
+function invalidateCaches()
+{
+ unset($_SESSION['tags']);
}
-$LINKSDB=new linkdb(isLoggedIn()); // Read links from database (and filter private links if used it not logged in).
-if (!isset($_SESSION['LINKS_PER_PAGE'])) $_SESSION['LINKS_PER_PAGE']=LINKS_PER_PAGE;
-if (startswith($_SERVER["QUERY_STRING"],'do=rss')) { showRSS(); exit; }
+if (isset($_SERVER["QUERY_STRING"]) && startswith($_SERVER["QUERY_STRING"],'do=genthumbnail')) { genThumbnail(); exit; } // Thumbnail generation/cache does not need the link database.
+$LINKSDB=new linkdb(isLoggedIn() || $GLOBALS['config']['OPEN_SHAARLI']); // Read links from database (and filter private links if used it not logged in).
+if (isset($_SERVER["QUERY_STRING"]) && startswith($_SERVER["QUERY_STRING"],'ws=')) { processWS(); exit; } // Webservices (for jQuery/jQueryUI)
+if (!isset($_SESSION['LINKS_PER_PAGE'])) $_SESSION['LINKS_PER_PAGE']=$GLOBALS['config']['LINKS_PER_PAGE'];
+if (isset($_SERVER["QUERY_STRING"]) && startswith($_SERVER["QUERY_STRING"],'do=dailyrss')) { showDailyRSS(); exit; }
+if (isset($_SERVER["QUERY_STRING"]) && startswith($_SERVER["QUERY_STRING"],'do=rss')) { showRSS(); exit; }
+if (isset($_SERVER["QUERY_STRING"]) && startswith($_SERVER["QUERY_STRING"],'do=atom')) { showATOM(); exit; }
renderPage();
-?>
\ No newline at end of file
+?>
projects / github / shaarli / Shaarli.git / blobdiff