<?php
-// Shaarli 0.0.18 beta - Shaare your links...
+// Shaarli 0.0.26 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)
-define('OPEN_SHAARLI',false); // If true, anyone can add/edit/delete links without having to login
-define('HIDE_TIMESTAMPS',false); // If true, the moment when links were saved are not shown to users that are not logged in.
-
+$GLOBALS['config']['DATADIR'] = 'data'; // Data subdirectory
+$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.
+
// -----------------------------------------------------------------------------------------------
// Program config (touch at your own risks !)
-define('UPDATECHECK_FILENAME',DATADIR.'/lastupdatecheck.txt'); // For updates check of Shaarli.
-define('UPDATECHECK_INTERVAL',86400); // Updates check frequency for Shaarli. 86400 seconds=24 hours
+$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');
//error_reporting(-1); // See all errors (for debugging only)
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())
{
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','0.0.18 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 $GLOBALS.
+define('shaarli_version','0.0.26 beta');
+if (!is_dir($GLOBALS['config']['DATADIR'])) { mkdir($GLOBALS['config']['DATADIR'],0705); chmod($GLOBALS['config']['DATADIR'],0705); }
+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'])) $GLOBALS['title']='Shared links on '.htmlspecialchars(serverUrl().$_SERVER['SCRIPT_NAME']);
if (empty($GLOBALS['timezone'])) $GLOBALS['timezone']=date_default_timezone_get();
if (!isLoggedIn()) return ''; // Do not check versions for visitors.
// Get latest version number at most once a day.
- if (!is_file(UPDATECHECK_FILENAME) || (filemtime(UPDATECHECK_FILENAME)<time()-(UPDATECHECK_INTERVAL)))
+ if (!is_file($GLOBALS['config']['UPDATECHECK_FILENAME']) || (filemtime($GLOBALS['config']['UPDATECHECK_FILENAME'])<time()-($GLOBALS['config']['UPDATECHECK_INTERVAL'])))
{
$version=shaarli_version;
list($httpstatus,$headers,$data) = getHTTP('http://sebsauvage.net/files/shaarli_version.txt',2);
if (strpos($httpstatus,'200 OK')) $version=$data;
// If failed, nevermind. We don't want to bother the user with that.
- file_put_contents(UPDATECHECK_FILENAME,$version); // touch file date
+ file_put_contents($GLOBALS['config']['UPDATECHECK_FILENAME'],$version); // touch file date
}
// Compare versions:
- $newestversion=file_get_contents(UPDATECHECK_FILENAME);
- if ($newestversion!=shaarli_version) return $newestversion;
+ $newestversion=file_get_contents($GLOBALS['config']['UPDATECHECK_FILENAME']);
+ if (version_compare($newestversion,shaarli_version)==1) return $newestversion;
return '';
}
function logm($message)
{
$t = strval(date('Y/m/d_H:i:s')).' - '.$_SERVER["REMOTE_ADDR"].' - '.strval($message)."\n";
- file_put_contents(DATADIR.'/log.txt',$t,FILE_APPEND);
+ file_put_contents($GLOBALS['config']['DATADIR'].'/log.txt',$t,FILE_APPEND);
+}
+
+/* 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 $t;
}
+// Function inspired from http://www.php.net/manual/en/function.preg-replace.php#85722
+function text2clickable($url)
+{
+ $redir = empty($GLOBALS['redirector']) ? '' : $GLOBALS['redirector'];
+ return preg_replace('!((?:https?|ftp)://\S+[[:alnum:]]/?)!si','<a href="'.$redir.'$1" rel="nofollow">$1</a>',$url);
+}
// ------------------------------------------------------------------------------------------
// 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.)
// Returns true if the user is logged in.
function isLoggedIn()
{
- if (OPEN_SHAARLI) return true;
+ 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 $_SESSION['expires_on']=time()+INACTIVITY_TIMEOUT; // Standard session expiration date.
+
return true;
}
// ------------------------------------------------------------------------------------------
// Brute force protection system
// Several consecutive failed logins will ban the IP address for 30 minutes.
-if (!is_file(IPBANS_FILENAME)) file_put_contents(IPBANS_FILENAME, "<?php\n\$GLOBALS['IPBANS']=".var_export(array('FAILURES'=>array(),'BANS'=>array()),true).";\n?>");
-include IPBANS_FILENAME;
+if (!is_file($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.
{ // 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($gb,true).";\n?>");
return true; // Ban has expired, user can login.
}
return false; // User is banned.
if (!ban_canLogin()) die('I said: NO. You are banned for the moment. Go away.');
if (isset($_POST['password']) && tokenOk($_POST['token']) && (check_auth($_POST['login'], $_POST['password'])))
{ // Login/password is ok.
- ban_loginOk();
+ ban_loginOk();
+ // If user wants to keep the session cookie even after the browser closes:
+ if (!empty($_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($_GET['source']):'')); exit; }
+ if (isset($_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($_POST['returnurl'],'?do=login')) { header('Location: ?'); exit; } // Prevent loops over login screen.
return date('r',linkdate2timestamp($linkdate)); // 'r' is for RFC822 date format.
}
+/* Converts a linkdate time (YYYYMMDD_HHMMSS) of an article to a ISO 8601 date.
+ (used to build the updated tags in ATOM feed.) */
+function linkdate2iso8601($linkdate)
+{
+ return date('c',linkdate2timestamp($linkdate)); // 'c' is for ISO 8601 date format.
+}
+
/* Converts a linkdate time (YYYYMMDD_HHMMSS) of an article to a localized date format.
(used to display link date on screen)
The date format is automatically chosen according to locale/languages sniffed from browser headers (see autoLocale()). */
{
$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);
// (Returns an empty string if not found.)
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",' ', $matches[1])) : '' ;
}
// ------------------------------------------------------------------------------------------
// ---- Misc methods
private function checkdb() // Check if db directory and file exists.
{
- if (!file_exists(DATASTORE)) // Create a dummy database for example.
+ if (!file_exists($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
+ file_put_contents($GLOBALS['config']['DATASTORE'], PHPPREFIX.base64_encode(gzdeflate(serialize($this->links))).PHPSUFFIX); // Write database to disk
}
}
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($GLOBALS['config']['DATASTORE']),strlen(PHPPREFIX),-strlen(PHPSUFFIX))))) : array() );
// Note that gzinflate is faster than gzuncompress. See: http://www.php.net/manual/en/function.gzdeflate.php#96439
// If user is not logged in, filter private links.
public function savedb()
{
if (!$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($this->links))).PHPSUFFIX);
}
// Returns the link for a given URL (if it exists). false it does not exist.
krsort($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 $filtered;
+ }
// Returns the list of all tags
// Output: associative array key=tags, value=0
elseif (!empty($_GET['searchtags'])) $linksToDisplay = $LINKSDB->filterTags(trim($_GET['searchtags']));
else $linksToDisplay = $LINKSDB;
- header('Content-Type: application/xhtml+xml; charset=utf-8');
+ header('Content-Type: application/rss+xml; charset=utf-8');
$pageaddr=htmlspecialchars(serverUrl().$_SERVER["SCRIPT_NAME"]);
echo '<?xml version="1.0" encoding="UTF-8"?><rss version="2.0" xmlns:content="http://purl.org/rss/1.0/modules/content/">';
echo '<channel><title>'.htmlspecialchars($GLOBALS['title']).'</title><link>'.$pageaddr.'</link>';
$link = $linksToDisplay[$keys[$i]];
$rfc822date = linkdate2rfc822($link['linkdate']);
echo '<item><title>'.htmlspecialchars($link['title']).'</title><guid>'.htmlspecialchars($link['url']).'</guid><link>'.htmlspecialchars($link['url']).'</link>';
- if (!HIDE_TIMESTAMPS || isLoggedIn()) echo '<pubDate>'.htmlspecialchars($rfc822date).'</pubDate>';
+ if (!$GLOBALS['config']['HIDE_TIMESTAMPS'] || isLoggedIn()) echo '<pubDate>'.htmlspecialchars($rfc822date).'</pubDate>';
echo '<description><![CDATA['.nl2br(htmlspecialchars($link['description'])).']]></description></item>'."\n";
$i++;
}
exit;
}
+// ------------------------------------------------------------------------------------------
+// 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');
+ $pageaddr=htmlspecialchars(serverUrl().$_SERVER["SCRIPT_NAME"]);
+ $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]];
+ $iso8601date = linkdate2iso8601($link['linkdate']);
+ $latestDate = max($latestDate,$iso8601date);
+ $entries.='<entry><title>'.htmlspecialchars($link['title']).'</title><link href="'.htmlspecialchars($link['url']).'"/><id>'.htmlspecialchars($link['url']).'</id>';
+ if (!$GLOBALS['config']['HIDE_TIMESTAMPS'] || isLoggedIn()) $entries.='<updated>'.htmlspecialchars($iso8601date).'</updated>';
+ $entries.='<summary>'.nl2br(htmlspecialchars($link['description'])).'</summary></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>';
+ $feed.='<link href="'.htmlspecialchars($pageaddr).'" />';
+ $feed.='<author><uri>'.htmlspecialchars($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 $feed;
+ exit;
+}
+
// ------------------------------------------------------------------------------------------
// Render HTML page:
function renderPage()
// -------- Display login form.
if (startswith($_SERVER["QUERY_STRING"],'do=login'))
{
- if (OPEN_SHAARLI) { header('Location: ?'); exit; } // No need to login for open Shaarli
+ if ($GLOBALS['config']['OPEN_SHAARLI']) { header('Location: ?'); exit; } // No need to login for open Shaarli
if (!ban_canLogin())
{
$loginform='<div id="headerform">You have been banned from login after too many failed attempts. Try later.</div>';
exit;
}
$returnurl_html = (isset($_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>';
+ $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"><br>';
+ $loginform.='<input style="margin:10 0 0 40;" type="checkbox" name="longlastingsession" id="longlastingsession"><label for="longlastingsession"> Stay signed in (Do not check on public computers)</label><input type="hidden" name="token" value="'.getToken().'">'.$returnurl_html.'</form></div>';
$onload = 'onload="document.loginform.login.focus();"';
$data = array('pageheader'=>$loginform,'body'=>'','onload'=>$onload);
templatePage($data);
exit;
}
-
// -------- User wants to logout.
if (startswith($_SERVER["QUERY_STRING"],'do=logout'))
{
// Show login screen, then redirect to ?post=...
if (isset($_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']).(isset($_GET['title'])?'&title='.urlencode($_GET['title']):'').(isset($_GET['source'])?'&source='.urlencode($_GET['source']):'')); // Redirect to login page, then back to post link.
exit;
}
<form method="GET" name="tagfilter" style="display:inline;padding-left:24px;"><input type="text" name="searchtags" id="searchtags" style="width:20%" value=""> <input type="submit" value="Filter by tag" class="bigbutton"></form>
</div>
HTML;
- $onload = 'onload="document.searchform.searchterm.focus();"';
- $data = array('pageheader'=>$searchform,'body'=>templateLinkList(),'onload'=>$onload);
+ $data = array('pageheader'=>$searchform,'body'=>templateLinkList(),'onload'=>'');
templatePage($data);
exit; // Never remove this one ! All operations below are reserved for logged in user.
}
{
$pageabsaddr=serverUrl().$_SERVER["SCRIPT_NAME"]; // Why doesn't php have a built-in function for that ?
// The javascript code for the bookmarklet:
- $changepwd = (OPEN_SHAARLI ? '' : '<a href="?do=changepasswd"><b>Change password</b></a> - Change your password.<br><br>' );
+ $changepwd = ($GLOBALS['config']['OPEN_SHAARLI'] ? '' : '<a href="?do=changepasswd"><b>Change password</b></a> - Change your password.<br><br>' );
$toolbar= <<<HTML
<div id="headerform"><br>
{$changepwd}
// -------- User wants to change his/her password.
if (startswith($_SERVER["QUERY_STRING"],'do=changepasswd'))
{
- if (OPEN_SHAARLI) die('You are not supposed to change a password on an Open Shaarli.');
+ if ($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 !
$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;
{
$token = getToken();
$title = htmlspecialchars( empty($GLOBALS['title']) ? '' : $GLOBALS['title'] , ENT_QUOTES);
+ $redirector = htmlspecialchars( empty($GLOBALS['redirector']) ? '' : $GLOBALS['redirector'] , ENT_QUOTES);
list($timezone_form,$timezone_js) = templateTZform($GLOBALS['timezone']);
$timezone_html=''; if ($timezone_form!='') $timezone_html='<tr><td valign="top"><b>Timezone:</b></td><td>'.$timezone_form.'</td></tr>';
$changepwdform= <<<HTML
<table border="0" cellpadding="20">
<tr><td><b>Page title:</b></td><td><input type="text" name="title" id="title" size="50" value="{$title}"></td></tr>
{$timezone_html}
+<tr><td valign="top"><b>Redirector</b></td><td><input type="text" name="redirector" id="redirector" size="50" value="{$redirector}"><br>(e.g. <i>http://anonym.to/?</i> will mask the HTTP_REFERER)</td></tr>
<tr><td></td><td align="right"><input type="submit" name="Save" value="Save config" class="bigbutton"></td></tr>
</table>
</form>
$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'=>$tags);
+ 'linkdate'=>$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
$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')
{
// 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');
}
+ 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);
<form method="GET" name="tagfilter" style="display:inline;padding-left:24px;"><input type="text" name="searchtags" id="searchtags" style="width:20%" value=""> <input type="submit" value="Filter by tag" class="bigbutton"></form>
</div>
HTML;
- $onload = 'onload="document.searchform.searchterm.focus();"';
- $data = array('pageheader'=>$searchform,'body'=>templateLinkList(),'onload'=>$onload);
+ $data = array('pageheader'=>$searchform,'body'=>templateLinkList(),'onload'=>'');
templatePage($data);
exit;
}
function templateLinkList()
{
global $LINKSDB;
-
+
// Search according to entered search terms:
$linksToDisplay=array();
$searched='';
if (!empty($_GET['searchterm'])) // Fulltext search
{
$linksToDisplay = $LINKSDB->filterFulltext(trim($_GET['searchterm']));
- $searched=' <b>'.count($linksToDisplay).' results for <i>'.htmlspecialchars(trim($_GET['searchterm'])).'</i></b>:';
+ $searched=count($linksToDisplay).' results for <i>'.htmlspecialchars(trim($_GET['searchterm'])).'</i>:';
}
elseif (!empty($_GET['searchtags'])) // Search by tag
{
$linksToDisplay = $LINKSDB->filterTags(trim($_GET['searchtags']));
$tagshtml=''; foreach(explode(' ',trim($_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>';
+ $searched=''.count($linksToDisplay).' results for tags '.$tagshtml.':';
+ }
+ elseif (preg_match('/[a-zA-Z0-9-_@]{6}/',$_SERVER["QUERY_STRING"])) // Detect smallHashes in URL
+ {
+ $linksToDisplay = $LINKSDB->filterSmallHash($_SERVER["QUERY_STRING"]);
}
else
$linksToDisplay = $LINKSDB; // otherwise, display without filtering.
-
+ if ($searched!='') $searched='<div id="searchcriteria">'.$searched.'</div>';
$linklist='';
$actions='';
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'];
+
$pagecount = ceil(count($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'];
+ $redir = empty($GLOBALS['redirector']) ? '' : $GLOBALS['redirector']; // optional redirector URL
+
while ($i<$end && $i<count($keys))
{
$link = $linksToDisplay[$keys[$i]];
- $description=$link['description'];
+ $description=text2clickable(htmlspecialchars($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>';
- if (!HIDE_TIMESTAMPS || isLoggedIn()) $linklist.='<span class="linkdate">'.htmlspecialchars(linkdate2locale($link['linkdate'])).' - </span>';
- $linklist.='<span class="linkurl">'.htmlspecialchars($link['url']).'</span><br>'.$tags."</li>\n";
+ if ($link['tags']!='')
+ {
+ foreach(explode(' ',$link['tags']) as $tag) { $tags.='<span class="linktag" title="Add tag"><a href="?addtag='.htmlspecialchars($tag).'">'.htmlspecialchars($tag).'</a></span> '; }
+ $tags='<div class="linktaglist">'.$tags.'</div>';
+ }
+ $linklist.='<li '.$classprivate.'>'.thumbnail($link['url']);
+ $linklist.='<div class="linkcontainer"><span class="linktitle"><a href="'.$redir.htmlspecialchars($link['url']).'">'.htmlspecialchars($title).'</a></span>'.$actions.'<br>';
+ if ($description!='') $linklist.='<div class="linkdescription">'.nl2br($description).'</div><br>';
+ if (!$GLOBALS['config']['HIDE_TIMESTAMPS'] || isLoggedIn()) $linklist.='<span class="linkdate" title="Permalink"><a href="?'.smallHash($link['linkdate']).'">'.htmlspecialchars(linkdate2locale($link['linkdate'])).' - permalink</a> - </span>';
+ else $linklist.='<span class="linkdate" title="Short link here"><a href="?'.smallHash($link['linkdate']).'">permalink</a> - </span>';
+ $linklist.='<span class="linkurl" title="Short link">'.htmlspecialchars($link['url']).'</span><br>'.$tags."</div></li>\n";
$i++;
}
return $linklist;
}
+// Returns the HTML code to display a thumbnail for a link.
+// Understands various services (youtube.com...)
+function thumbnail($url)
+{
+ if (!$GLOBALS['config']['ENABLE_THUMBNAILS']) return '';
+
+ // 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 '<div class="thumbnail"><a href="'.htmlspecialchars($url).'"><img src="http://img.youtube.com/vi/'.htmlspecialchars($params['v']).'/default.jpg" width="120" height="90"></a></div>';
+ }
+ if ($domain=='imgur.com')
+ {
+ $path = parse_url($url,PHP_URL_PATH);
+ if (strpos($path,'/r/')==0) return '<div class="thumbnail"><a href="'.htmlspecialchars($url).'"><img src="http://i.imgur.com/'.htmlspecialchars(basename($path)).'s.jpg" width="90" height="90"></a></div>';
+ if (strpos($path,'/gallery/')==0) return '<div class="thumbnail"><a href="'.htmlspecialchars($url).'"><img src="http://i.imgur.com'.htmlspecialchars(substr($path,8)).'s.jpg" width="90" height="90"></a></div>';
+ if (substr_count($path,'/')==1) return '<div class="thumbnail"><a href="'.htmlspecialchars($url).'"><img src="http://i.imgur.com/'.htmlspecialchars(substr($path,1)).'s.jpg" width="90" height="90"></a></div>';
+ }
+ if ($domain=='i.imgur.com')
+ {
+ $pi = pathinfo(parse_url($url,PHP_URL_PATH));
+ if (!empty($pi['filename'])) return '<div class="thumbnail"><a href="'.htmlspecialchars($url).'"><img src="http://i.imgur.com/'.htmlspecialchars($pi['filename']).'s.jpg" width="90" height="90"></a></div>';
+ }
+ if ($domain=='dailymotion.com' || $domain=='www.dailymotion.com')
+ {
+ if (strpos($url,'dailymotion.com/video/'))
+ {
+ $thumburl=str_replace('dailymotion.com/video/','dailymotion.com/thumbnail/video/',$url);
+ return '<div class="thumbnail"><a href="'.htmlspecialchars($url).'"><img src="'.htmlspecialchars($thumburl).'" width="120" style="height:auto;"></a></div>';
+ }
+ }
+ 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.'.$ext;
+ return '<div class="thumbnail"><a href="'.htmlspecialchars($url).'"><img src="'.htmlspecialchars($thumburl).'" width="120" style="height:auto;"></a></div>';
+ }
+ }
+
+
+ // Some other hosts are SLOW AS HELL and usually require an extra HTTP request to get the thumbnail URL.
+ // So we deport the thumbnail generation in order not to slow down page generation
+ // (and we also cache the thumbnail)
+
+ if (!$GLOBALS['config']['ENABLE_LOCALCACHE']) return ''; // 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')
+ {
+ $sign = hash_hmac('sha256', $url, $GLOBALS['salt']); // We use the salt to sign data (it's random, secret, and specific to each installation)
+ return '<div class="thumbnail"><a href="'.htmlspecialchars($url).'"><img src="?do=genthumbnail&hmac='.htmlspecialchars($sign).'&url='.urlencode($url).'" width="120" style="height:auto;"></a></div>';
+ }
+
+ // 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, $GLOBALS['salt']); // We use the salt to sign data (it's random, secret, and specific to each installation)
+ return '<div class="thumbnail"><a href="'.htmlspecialchars($url).'"><img src="?do=genthumbnail&hmac='.htmlspecialchars($sign).'&url='.urlencode($url).'" width="120" style="height:auto;"></a></div>';
+ }
+ return ''; // No thumbnail.
+
+}
+
// -----------------------------------------------------------------------------------------------
// Template for the whole page.
/* Input: $data (associative array).
if ($newversion!='') $newversion='<div id="newversion"><span style="text-decoration:blink;">●</span> Shaarli '.htmlspecialchars($newversion).' is <a href="http://sebsauvage.net/wiki/doku.php?id=php:shaarli#download">available</a>.</div>';
$linkcount = count($LINKSDB);
$open='';
- if (OPEN_SHAARLI)
+ if ($GLOBALS['config']['OPEN_SHAARLI'])
{
$menu=' <a href="?do=tools">Tools</a> <a href="?do=addlink"><b>Add link</b></a>';
$open='Open ';
if (!array_key_exists($k,$data)) $data[$k]='';
}
$jsincludes=''; $jsincludes_bottom = '';
- if (OPEN_SHAARLI || isLoggedIn())
+ if ($GLOBALS['config']['OPEN_SHAARLI'] || isLoggedIn())
{
- $jsincludes='<script language="JavaScript" src="jquery.min.js"></script><script language="JavaScript" src="jquery-ui.custom.min.js"></script>';
$source = serverUrl().$_SERVER['SCRIPT_NAME'];
+ $jsincludes='<script language="JavaScript" src="jquery.min.js"></script><script language="JavaScript" src="jquery-ui.custom.min.js"></script>';
$jsincludes_bottom = <<<JS
<script language="JavaScript">
$(document).ready(function()
</script>
JS;
}
- $feedurl=htmlspecialchars(serverUrl().$_SERVER['SCRIPT_NAME'].'?do=rss');
- if (!empty($_GET['searchtags'])) $feedurl.='&searchtags='.$_GET['searchtags'];
- elseif (!empty($_GET['searchterm'])) $feedurl.='&searchterm='.$_GET['searchterm'];
+ $feedurl=htmlspecialchars(serverUrl().$_SERVER['SCRIPT_NAME']);
+ $feedsearch='';
+ if (!empty($_GET['searchtags'])) $feedsearch.='&searchtags='.$_GET['searchtags'];
+ elseif (!empty($_GET['searchterm'])) $feedsearch.='&searchterm='.$_GET['searchterm'];
+ $filtered_feed= ($feedsearch=='' ? '' : 'Filtered ');
+ $version=shaarli_version;
$title = htmlspecialchars( $GLOBALS['title'] );
+ $pagetitle = htmlspecialchars( empty($GLOBALS['pagetitle']) ? $title : $GLOBALS['pagetitle'] );
echo <<<HTML
<html>
<head>
-<title>{$title}</title>
-<link rel="alternate" type="application/rss+xml" href="{$feedurl}" />
-<link type="text/css" rel="stylesheet" href="shaarli.css" />
+<title>{$pagetitle}</title>
+<link rel="alternate" type="application/rss+xml" href="{$feedurl}?do=rss{$feedsearch}" title="{$filtered_feed}RSS Feed" />
+<link rel="alternate" type="application/atom+xml" href="{$feedurl}?do=atom{$feedsearch}" title="{$filtered_feed}ATOM Feed" />
+<link type="text/css" rel="stylesheet" href="shaarli.css?version={$version}" />
{$jsincludes}
</head>
<body {$data['onload']}>{$newversion}
<div id="pageheader"><div style="float:right; font-style:italic; color:#bbb; text-align:right; padding:0 5 0 0;">Shaare your links...<br>{$linkcount} links</div>
- <b><i>{$title}</i></b> - <a href="?">Home</a> {$menu} <a href="{$feedurl}" style="padding-left:30px;">RSS Feed</a>
+ <span id="shaarli_title"><a href="?">{$title}</a></span> - <a href="?">Home</a> {$menu} <a href="{$feedurl}?do=rss{$feedsearch}" style="padding-left:30px;">RSS Feed</a> <a href="{$feedurl}?do=atom{$feedsearch}" style="padding-left:10px;">ATOM Feed</a>
<a href="?do=tagcloud">Tag cloud</a>
{$data['pageheader']}
</div>
// Search in tags (case insentitive, cumulative search)
if ($_GET['ws']=='tags')
{
- $tags=explode(' ',$term); $last = array_pop($tags); // Get the last term ("a b c d" ==> "a b c", "d")
+ $tags=explode(' ',str_replace(',',' ',$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)) $suggested[$addtags.$key.' ']=0;
+ if (startsWith($key,$last,$case=false) && !in_array($key,$tags)) $suggested[$addtags.$key.' ']=0;
}
echo json_encode(array_keys($suggested));
exit;
// (otherwise, the function simply returns.)
function writeConfig()
{
- if (is_file(CONFIG_FILE) && !isLoggedIn()) die('You are not authorized to alter config.'); // Only logged in user can alter config.
+ 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).'; ?>';
- if (!file_put_contents(CONFIG_FILE,$config) || strcmp(file_get_contents(CONFIG_FILE),$config)!=0)
+ $config .='$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($httpstatus,'200 OK'))
+ {
+ preg_match('!(http://farm\d+.static.flickr.com/\d+/\d+_\w+_)[^s].jpg!',$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'))
+ {
+ file_put_contents($GLOBALS['config']['CACHEDIR'].'/'.$thumbname,$data); // Save image to cache.
+ header('Content-Type: image/jpeg');
+ echo $data;
+ return;
+ }
+ }
+ }
+
+ if ($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'))
+ {
+ $t = unserialize($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'))
+ {
+ file_put_contents($GLOBALS['config']['CACHEDIR'].'/'.$thumbname,$data); // Save image to cache.
+ header('Content-Type: image/jpeg');
+ echo $data;
+ return;
+ }
+ }
+ }
+
+ // For all other domains, we try to download the image and make a thumbnail.
+ list($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'))
+ {
+ $filepath=$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.
+ $im=false;
+ if (strpos($header,'GIF8')==0) $im = imagecreatefromgif($filepath); // Well this is crude, but it should be enough.
+ if (strpos($header,'PNG')==1) $im = imagecreatefrompng($filepath);
+ if (strpos($header,'JFIF')) $im = imagecreatefromjpeg($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']);
}
-$LINKSDB=new linkdb(isLoggedIn() || OPEN_SHAARLI); // Read links from database (and filter private links if used it not logged in).
+if (startswith($_SERVER["QUERY_STRING"],'do=genthumbnail')) { genThumbnail(); exit; } // Thumbnail generation/cache does not need the link database.
+$LINKSDB=new linkdb(isLoggedIn() || $GLOBALS['config']['OPEN_SHAARLI']); // Read links from database (and filter private links if used it not logged in).
if (startswith($_SERVER["QUERY_STRING"],'ws=')) { processWS(); exit; } // Webservices (for jQuery/jQueryUI)
-if (!isset($_SESSION['LINKS_PER_PAGE'])) $_SESSION['LINKS_PER_PAGE']=LINKS_PER_PAGE;
+if (!isset($_SESSION['LINKS_PER_PAGE'])) $_SESSION['LINKS_PER_PAGE']=$GLOBALS['config']['LINKS_PER_PAGE'];
if (startswith($_SERVER["QUERY_STRING"],'do=rss')) { showRSS(); exit; }
+if (startswith($_SERVER["QUERY_STRING"],'do=atom')) { showATOM(); exit; }
renderPage();
?>
\ No newline at end of file