From 0adcceeea91382dedecc7dbc3531b2a754142f2a Mon Sep 17 00:00:00 2001
From: Seb Sauvage <sebsauvage@sebsauvage.net>
Date: Tue, 27 Sep 2011 17:25:52 +0200
Subject: Version 0.0.21 beta: - New: Thumbnails for some services (currently
 supports: YouTube.com, dailymotion.com, vimeo.com (slow!) and imgur.com).
 Thumbnails are enabled by default, but you can turn them off (set
 define('ENABLE_THUMBNAILS',true); to false.) - Changed: Removed the focus on
 the searchbox (this is cumbersome when you want to browse pages and scroll
 with the keyboard).

---
 index.php   | 63 +++++++++++++++++++++++++++++++++++++++++++++++++++++--------
 shaarli.css |  9 ++++++++-
 2 files changed, 63 insertions(+), 9 deletions(-)

diff --git a/index.php b/index.php
index e1da9bc0..57a64004 100644
--- a/index.php
+++ b/index.php
@@ -1,5 +1,5 @@
 <?php
-// Shaarli 0.0.20 beta - Shaare your links...
+// Shaarli 0.0.21 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
@@ -17,6 +17,7 @@ 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.
+define('ENABLE_THUMBNAILS',true);  // Enable thumbnails in links.
 
 // -----------------------------------------------------------------------------------------------
 // Program config (touch at your own risks !)
@@ -47,7 +48,7 @@ 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','0.0.20 beta');
+define('shaarli_version','0.0.21 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();
@@ -750,8 +751,7 @@ function renderPage()
     <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.
     }
@@ -1101,8 +1101,7 @@ HTML;
     <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;
 }    
@@ -1262,10 +1261,11 @@ function templateLinkList()
         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>';
+        $linklist.='<li '.$classprivate.'>'.thumbnail($link['url']);
+        $linklist.='<div class="linkcontainer"><span class="linktitle"><a href="'.htmlspecialchars($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";  
+        $linklist.='<span class="linkurl">'.htmlspecialchars($link['url']).'</span><br>'.$tags."</div></li>\n";  
         $i++;
     } 
     
@@ -1286,6 +1286,53 @@ HTML;
     return $linklist;
 }
 
+// Returns the HTML code to display a thumbnail for a link.
+// Understands various services (youtube.com...)
+function thumbnail($url)
+{
+    if (!ENABLE_THUMBNAILS) return '';
+    $domain = parse_url($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']).'/2.jpg" width="120" height="90"></a></div>';
+    }
+    if ($domain=='imgur.com')
+    {
+        $path = parse_url($url,PHP_URL_PATH);
+        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 ($domain=='vimeo.com')
+    {
+        // This is more complex: we have to perform a HTTP request, then parse the result.
+        // This slows down page generation :-(
+        // 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);
+        // We allow 2 seconds for Vimeo servers to respond.
+        list($httpstatus,$headers,$data) = getHTTP('http://vimeo.com/api/v2/video/'.htmlspecialchars($vid).'.php',2);
+        if (strpos($httpstatus,'200 OK'))
+        {
+            $t = unserialize($data);
+            if (!empty($t[0]['thumbnail_medium'])) return '<div class="thumbnail"><a href="'.htmlspecialchars($url).'"><img src="'.htmlspecialchars($t[0]['thumbnail_medium']).'" width="120" style="height:auto;"></a></div>';
+        }
+    }
+    return ''; // No thumbnail.
+
+}
+
 // -----------------------------------------------------------------------------------------------
 // Template for the whole page.
 /* Input: $data (associative array).
diff --git a/shaarli.css b/shaarli.css
index 5a977439..3136755b 100644
--- a/shaarli.css
+++ b/shaarli.css
@@ -44,7 +44,7 @@ margin: auto;
 .paging a:active { color:#fff;  }
 #headerform { padding:5 5 5 5;  }
 #editlinkform {  padding:5 5 5 15px; width:80%; }
-#linklist li { padding:4 10 8 20; border-bottom: 1px solid #bbb;}
+#linklist li { padding:4 10 8 20; border-top: 1px solid #bbb; clear:both; }
 #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; }
@@ -63,6 +63,13 @@ border-bottom:1px solid #aaa; border-right:1px solid #aaa;  }
 #cloudtag a { color:black; text-decoration:none; }
 #installform td  { font-size: 10pt; padding:10 5 10 5; }
 #configform td  { color:#ccc; font-size: 10pt; padding:10 5 10 5; }
+.thumbnail { float:right;  margin-left: 10px;   }
+
+/* If you want thumbnails on the right:
+.thumbnail { float:left;  margin-right: 10px;   }
+.linkcontainer { position: static; margin-left:130px; }
+*/
+
 
 /* Minimal customisation for jQuery widgets */
 .ui-autocomplete { background-color:#fff; padding-left:5px;}
-- 
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