wall to wall detection: fallback using @ tags, and check if one is a forum.

object/Item.php

@@ -590,7 +590,33 @@ class Item extends BaseObject {
 		}
 
 		if(!$this->wall_to_wall) {
-			// Definitely not wall to wall
+			// Fallback, check if can find a @ tag
+			$tags = $this->get_data_value('tag');
+			if(strpos($tags, '@[url') !== FALSE) {
+				// We have at least one @ tag
+				$matches = array();
+				preg_match_all('/\@\[url=([^\]]+)\]([^\[]+)\[\/url\]/', $tags, $matches, PREG_SET_ORDER);
+
+				$r = null;
+				foreach($matches as $wall) {
+					$uri = $wall[1];
+					$r = q("SELECT `url`,`name`,`photo`,`forum` FROM `contact` WHERE `url`='%s' LIMIT 1",
+						dbesc($uri)
+					);
+
+					if(count($r) && (intval($r[0]['forum']) == 1)) {
+						$this->owner_url = zrl($r[0]['url']);
+						$this->owner_name = $r[0]['name'];
+						$this->owner_photo = $r[0]['photo'];
+						$this->wall_to_wall = true;
+						$this->set_template('wall2wall');
+						break;
+					}
+				}
+			}
+		}
+
+		if(!$this->wall_to_wall) {
 			$this->set_template('wall');
 			$this->owner_url = '';
 			$this->owner_photo = '';