From 3ea9610796770bb2ba54d3c8c0f465a22eb9e3c8 Mon Sep 17 00:00:00 2001
From: Sem <sembrestels@riseup.net>
Date: Thu, 7 Nov 2013 06:01:06 +0100
Subject: Making video thumbnails faster (thanks to ura soul).

---
 start.php     | 37 ++++++++++++++++++----------
 thumbnail.php | 77 ++++++++++++++++++++++++++++++++++++++++-------------------
 2 files changed, 78 insertions(+), 36 deletions(-)

diff --git a/start.php b/start.php
index 2094ffacc..6f94b97d0 100644
--- a/start.php
+++ b/start.php
@@ -270,22 +270,35 @@ function videolist_embed_get_items($hook, $type, $value, $params) {
  * @return string Relative URL
  */
 function videolist_icon_url_override($hook, $type, $returnvalue, $params) {
-	$videolist_item = $params['entity'];
-    /* @var ElggObject $videolist_item */
-    $size = $params['size'];
 
-    if($videolist_item->getSubtype() != 'videolist_item'){
-		return $returnvalue;
-	}
-	
-	// tiny thumbnails are too small to be useful, so give a generic video icon
-	if ($size != 'tiny' && isset($videolist_item->thumbnail)) {
-		return elgg_get_site_url() . "mod/videolist/thumbnail.php?guid=" . $videolist_item->guid;
+	// if someone already set this, quit
+	if ($return_value) {
+		return null;
 	}
 
-	if (in_array($size, array('tiny', 'small', 'medium'))){
-		return "mod/videolist/graphics/videolist_icon_{$size}.png";
+	$videolist_item = $params['entity'];
+	$size = $params['size'];
+	
+	if (!elgg_instanceof($videolist_item, 'object', 'videolist_item')) {
+		return null;
 	}
+    
+    // tiny thumbnails are too small to be useful, so give a generic video icon
+    try {
+        if ($size != 'tiny' && isset($videolist_item->thumbnail)) {
+            $owner = $videolist_item->getOwnerEntity();
+            $owner_guid = $owner->getGUID();
+            $join_date = $owner->getTimeCreated();
+            return "mod/videolist/thumbnail.php?joindate=$join_date&guid={$videolist_item->guid}&owner_guid=$owner_guid&size=$size";
+        }
+    } catch (InvalidParameterException $e) {
+        elgg_log("Unable to get videolist icon for video with GUID {$videolist_item->guid}", 'ERROR');
+        return "mod/videolist/graphics/videolist_icon_{$size}.png";
+    }
+    if (in_array($size, array('tiny', 'small', 'medium'))){
+        return "mod/videolist/graphics/videolist_icon_{$size}.png";
+    }
+    return null;
 }
 
 /**
diff --git a/thumbnail.php b/thumbnail.php
index bd93f8e63..7a4ca8b6c 100644
--- a/thumbnail.php
+++ b/thumbnail.php
@@ -1,35 +1,64 @@
 <?php
 /**
- * Elgg file thumbnail
- *
- * @package ElggFile
+ * Elgg profile icon cache/bypass
+ * 
+ * 
+ * @package ElggProfile
  */
 
-// Get engine
-require_once(dirname(dirname(dirname(__FILE__))) . "/engine/start.php");
-
-// Get videolist item GUID
-$guid = (int) get_input('guid', 0);
+// Get DB settings
+require_once(dirname(dirname(dirname(__FILE__))). '/engine/settings.php');
 
-// Get file thumbnail size
-$size = get_input('size', 'small');
+global $CONFIG;
 
-$item = get_entity($guid);
-if (!$item || $item->getSubtype() != "videolist_item") {
+// won't be able to serve anything if no joindate or guid
+if (!isset($_GET['joindate']) || !isset($_GET['guid'])) {
+	header("HTTP/1.1 404 Not Found");
 	exit;
 }
 
-$readfile = new ElggFile();
-$readfile->owner_guid = $item->owner_guid;
-$readfile->setFilename("videolist/{$item->guid}.jpg");
-$contents = $readfile->grabFile();
+$join_date = (int)$_GET['joindate'];
+$owner_guid = (int)$_GET['owner_guid'];
+$guid = (int)$_GET['guid'];
+
+$mysql_dblink = @mysql_connect($CONFIG->dbhost, $CONFIG->dbuser, $CONFIG->dbpass, true);
+if ($mysql_dblink) {
+	if (@mysql_select_db($CONFIG->dbname, $mysql_dblink)) {
+		$result = mysql_query("select name, value from {$CONFIG->dbprefix}datalists where name='dataroot'", $mysql_dblink);
+		if ($result) {
+			$row = mysql_fetch_object($result);
+			while ($row) {
+				if ($row->name == 'dataroot') {
+					$data_root = $row->value;
+				}
+				$row = mysql_fetch_object($result);
+			}
+		}
+
+		@mysql_close($mysql_dblink);
+
+		if (isset($data_root)) {
 
-// caching images for 10 days
-header("Content-type: image/jpeg");
-header('Expires: ' . date('r',time() + 864000));
-header("Pragma: public", true);
-header("Cache-Control: public", true);
-header("Content-Length: " . strlen($contents));
+			// this depends on ElggDiskFilestore::makeFileMatrix()
+			$user_path = date('Y/m/d/', $join_date) . $owner_guid;
 
-echo $contents;
-exit;
+			$filename = "$data_root$user_path/videolist/{$guid}.jpg";
+			$size = @filesize($filename);
+			if ($size) {
+				header("Content-type: image/jpeg");
+				header('Expires: ' . gmdate('D, d M Y H:i:s \G\M\T', strtotime("+6 months")), true);
+				header("Pragma: public");
+				header("Cache-Control: public");
+				header("Content-Length: $size");
+				readfile($filename);
+				exit;
+			}
+		}
+	}
+
+}
+
+// something went wrong so load engine and try to forward to default icon
+require_once(dirname(dirname(dirname(__FILE__))) . "/engine/start.php");
+elgg_log("Profile icon direct failed.", "WARNING");
+forward("mod/videolist/graphics/videolist_icon_{$size}.png");
-- 
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