Version 0.0.34 beta:

- Corrected: In link edition, you can now click the word “Private” to check the box.
- Corrected: Clicking a tag would not work properly if the tag contained special characters (like +).
- Corrected: Added proper jQuery licence (shame on me).
- Changed: Upgraded bundled versions of jQuery (1.7.1) and jQuery UI (1.8.17).
- Changed: Upgraded bundled version of RainTPL (2.7).
- Changed: Changed HTTPS detection code.
- Added: There is now a QR-Code of each permalink to easily open a link on your smartphone.
- Added: Protocols file: and apt: are now also converted to clickable links (patch by Francis Chavanon)
- Added: Thumbnail support for http://xkcd.com/ (patch by Emilien Klein). [r31]
- Added: Thumbnail support for http://pix.toile-libre.org/
- Added: Well I had some mercy for users with antique browsers (IE) which do not have support for gradients: I added a few background-color.
- Added: First version of the “Shaarli Daily”, a page showing all links of a specific day. By default, you see the links of the previous day. There is still work to do on this page (error checking, better navigation (calendar?), RSS feed, CSS for mobile and printing…)

1 files changed, 106 insertions, 22 deletions

diff --git a/index.php b/index.php
index ba3d9c34..46a8c902 100644
--- a/index.php
+++ b/index.php
@@ -1,5 +1,5 @@
 <?php
-// Shaarli 0.0.33 beta - Shaare your links...
+// Shaarli 0.0.34 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
@@ -58,7 +58,7 @@ 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','0.0.33 beta');
+define('shaarli_version','0.0.34 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'])
@@ -141,11 +141,12 @@ function smallHash($text)
     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']) ? '' : $GLOBALS['redirector'];
-    return preg_replace('!((?:https?|ftp)://\S+[[:alnum:]]/?)!si','<a href="'.$redir.'$1" rel="nofollow">$1</a>',$url);
+    return preg_replace('!(((?:https?|ftp|file)://|apt:)\S+[[:alnum:]]/?)!si','<a href="'.$redir.'$1" rel="nofollow">$1</a>',$url);
 }
 
 // This function inserts &nbsp; where relevant so that multiple spaces are properly displayed in HTML
@@ -336,13 +337,15 @@ if (isset($_POST['login']))
 // You can append $_SERVER['SCRIPT_NAME'] to get the current script URL.
 function serverUrl()
 {
-        $serverport = ($_SERVER["SERVER_PORT"]=='80' || (!empty($_SERVER['HTTPS']) && $_SERVER["SERVER_PORT"]=='443') ? '' : ':'.$_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' ? '' : $_SERVER["SCRIPT_NAME"]);
+        return serverUrl() . ($_SERVER["SCRIPT_NAME"] == '/index.php' ? '/' : $_SERVER["SCRIPT_NAME"]);
 }
 
 // Convert post_max_size/upload_max_filesize (eg.'16M') parameters to bytes.
@@ -526,6 +529,7 @@ class pageBuilder
         $this->tpl->assign('searchcrits',$searchcrits);
         $this->tpl->assign('source',indexUrl());
         $this->tpl->assign('version',shaarli_version);
+        $this->tpl->assign('scripturl',indexUrl());
         $this->tpl->assign('pagetitle','Shaarli');
         if (!empty($GLOBALS['title'])) $this->tpl->assign('pagetitle',$GLOBALS['title']);
         if (!empty($GLOBALS['pagetitle'])) $this->tpl->assign('pagetitle',$GLOBALS['pagetitle']);
@@ -557,6 +561,14 @@ class pageBuilder
       echo $mylinks['20110826_161819']['title'];
       foreach($mylinks as $link)
          echo $link['title'].' at url '.$link['url'].' ; description:'.$link['description'];
+   
+   Available keys:
+       title : Title of the link
+       url : URL of the link. Can be absolute or relative. Relative URLs are permalinks (eg.'?m-ukcw')
+       description : description of the entry
+       private : Is this link private ? 0=no, other value=yes
+       linkdate : date of the creation of this entry, in the form YYYYMMDD_HHMMSS (eg.'20110914_192317')
+       tags : tags attached to this entry (separated by spaces)                   
 
    We implement 3 interfaces:
      - ArrayAccess so that this object behaves like an associative array.
@@ -694,6 +706,19 @@ class linkdb implements Iterator, Countable, ArrayAccess
         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)
@@ -934,7 +959,55 @@ function renderPage()
         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'];
+
+        $previousday = Date('Ymd',strtotime('-1 day',strtotime($day))); 
+        $nextday = Date('Ymd',strtotime('+1 day',strtotime($day))); 
+        
+        $linksToDisplay=$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)
+            $length=strlen($link['title'])+strlen($link['description']);
+            if ($link['thumbnail']) $length +=100; // 1 thumbnails roughly take as much space as 100 words;
+            
+            // 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())
@@ -1424,6 +1497,7 @@ function buildLinkList($PAGE)
 // 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,$href=false)
 {
     if (!$GLOBALS['config']['ENABLE_THUMBNAILS']) return '';
@@ -1437,32 +1511,38 @@ function thumbnail($url,$href=false)
     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 '<a href="'.htmlspecialchars($href).'"><img src="http://img.youtube.com/vi/'.htmlspecialchars($params['v']).'/default.jpg" width="120" height="90"></a>';
+        if (!empty($params['v'])) return '<a href="'.htmlspecialchars($href).'"><img src="http://img.youtube.com/vi/'.htmlspecialchars($params['v']).'/default.jpg" width="120" height="90" alt="YouTube thumbnail"></a>';
     }
     if ($domain=='youtu.be') // Youtube short links
     {
         $path = parse_url($url,PHP_URL_PATH);
-        return '<a href="'.htmlspecialchars($href).'"><img src="http://img.youtube.com/vi'.htmlspecialchars($path).'/default.jpg" width="120" height="90"></a>';
+        return '<a href="'.htmlspecialchars($href).'"><img src="http://img.youtube.com/vi'.htmlspecialchars($path).'/default.jpg" width="120" height="90"  alt="YouTube thumbnail"></a>';
     }
+    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($params['img'])) return '<a href="'.htmlspecialchars($href).'"><img src="http://pix.toile-libre.org/upload/thumb/'.urlencode($params['img']).'" style:"max-width:120px; max-height:150px" alt="pix.toile-libre.org thumbnail"></a>';
+    }    
+    
     if ($domain=='imgur.com')
     {
         $path = parse_url($url,PHP_URL_PATH);
         if (startsWith($path,'/a/')) return ''; // Thumbnails for albums are not available.
-        if (startsWith($path,'/r/')) return '<a href="'.htmlspecialchars($href).'"><img src="http://i.imgur.com/'.htmlspecialchars(basename($path)).'s.jpg" width="90" height="90"></a>';
-        if (startsWith($path,'/gallery/')) return '<a href="'.htmlspecialchars($href).'"><img src="http://i.imgur.com'.htmlspecialchars(substr($path,8)).'s.jpg" width="90" height="90"></a>';
-        if (substr_count($path,'/')==1) return '<a href="'.htmlspecialchars($href).'"><img src="http://i.imgur.com/'.htmlspecialchars(substr($path,1)).'s.jpg" width="90" height="90"></a>';
+        if (startsWith($path,'/r/')) return '<a href="'.htmlspecialchars($href).'"><img src="http://i.imgur.com/'.htmlspecialchars(basename($path)).'s.jpg" width="90" height="90" alt="imgur.com thumbnail"></a>';
+        if (startsWith($path,'/gallery/')) return '<a href="'.htmlspecialchars($href).'"><img src="http://i.imgur.com'.htmlspecialchars(substr($path,8)).'s.jpg" width="90" height="90" alt="imgur.com thumbnail"></a>';
+        if (substr_count($path,'/')==1) return '<a href="'.htmlspecialchars($href).'"><img src="http://i.imgur.com/'.htmlspecialchars(substr($path,1)).'s.jpg" width="90" height="90" alt="imgur.com thumbnail"></a>';
     }
     if ($domain=='i.imgur.com')
     {
         $pi = pathinfo(parse_url($url,PHP_URL_PATH));
-        if (!empty($pi['filename'])) return '<a href="'.htmlspecialchars($href).'"><img src="http://i.imgur.com/'.htmlspecialchars($pi['filename']).'s.jpg" width="90" height="90"></a>';
+        if (!empty($pi['filename'])) return '<a href="'.htmlspecialchars($href).'"><img src="http://i.imgur.com/'.htmlspecialchars($pi['filename']).'s.jpg" width="90" height="90" alt="imgur.com thumbnail"></a>';
     }
     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 '<a href="'.htmlspecialchars($href).'"><img src="'.htmlspecialchars($thumburl).'" width="120" style="height:auto;"></a>';
+            return '<a href="'.htmlspecialchars($href).'"><img src="'.htmlspecialchars($thumburl).'" width="120" style="height:auto;" alt="DailyMotion thumbnail"></a>';
         }
     }
     if (endsWith($domain,'.imageshack.us'))
@@ -1471,7 +1551,7 @@ function thumbnail($url,$href=false)
         if ($ext=='jpg' || $ext=='jpeg' || $ext=='png' || $ext=='gif')
         {
             $thumburl = substr($url,0,strlen($url)-strlen($ext)).'th.'.$ext;
-            return '<a href="'.htmlspecialchars($href).'"><img src="'.htmlspecialchars($thumburl).'" width="120" style="height:auto;"></a>';
+            return '<a href="'.htmlspecialchars($href).'"><img src="'.htmlspecialchars($thumburl).'" width="120" style="height:auto;" alt="imageshack.us thumbnail"></a>';
         }
     }
 
@@ -1487,11 +1567,15 @@ function thumbnail($url,$href=false)
         || $domain=='xkcd.com' || endsWith($domain,'.xkcd.com')
     )
     {
-        if ($domain=='vimeo.com' || $domain=='xkcd.com' || endsWith($domain,'.xkcd.com'))
-        {   // Make sure the url is of the form /xxx... where xxx is numeric
-            // For Vimeo's videos and xkcd's comics
+        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+.+?!',$path)) return ''; // This is not a single video URL.
+        }
+        if ($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+.+?!',$path)) return ''; // This is not a single video/comic URL.
+            if (!preg_match('!/\d+.+?!',$path)) return '';
         }
         if ($domain=='ted.com' || endsWith($domain,'.ted.com'))
         {   // Make sure this TED url points to a video (/talks/...)
@@ -1499,7 +1583,7 @@ function thumbnail($url,$href=false)
             if ("/talks/" !== substr($path,0,7)) return ''; // This is not a single video URL.
         }
         $sign = hash_hmac('sha256', $url, $GLOBALS['salt']); // We use the salt to sign data (it's random, secret, and specific to each installation)
-        return '<a href="'.htmlspecialchars($href).'"><img src="?do=genthumbnail&hmac='.htmlspecialchars($sign).'&url='.urlencode($url).'" width="120" style="height:auto;"></a>';
+        return '<a href="'.htmlspecialchars($href).'"><img src="?do=genthumbnail&hmac='.htmlspecialchars($sign).'&url='.urlencode($url).'" width="120" style="height:auto;" alt="thumbnail"></a>';
     }
 
     // For all other, we try to make a thumbnail of links ending with .jpg/jpeg/png/gif
@@ -1798,7 +1882,7 @@ function genThumbnail()
             }
         }
     }
-
+    
     elseif ($domain=='xkcd.com' || endsWith($domain,'.xkcd.com'))
     {
         // There is no thumbnail available for xkcd comics, so download the whole image and resize it.
@@ -1826,7 +1910,7 @@ function genThumbnail()
                 }
             }
         }
-    }
+    }    
 
     else
     {