From c6ac4387350eefce8ba68485c49ba8da60ff437b Mon Sep 17 00:00:00 2001
From: Friendika <info@friendika.com>
Date: Mon, 3 Oct 2011 06:04:17 -0700
Subject: [PATCH] item_store: prevent storing a duplicate item with same
 uri+uid

---
 include/items.php | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/include/items.php b/include/items.php
index 32f0728c33..d907aeddba 100644
--- a/include/items.php
+++ b/include/items.php
@@ -807,6 +807,14 @@ function item_store($arr,$force_parent = false) {
 		}
 	}
 
+	$r = q("SELECT `id` FROM `item` WHERE `uri` = '%s' AND `uid` = %d LIMIT 1",
+		dbesc($arr['uri']),
+		dbesc($arr['uid'])
+	);
+	if($r && count($r)) {
+		logger('item-store: duplicate item ignored. ' . print_r($arr,true));
+		return 0;
+	}
 
 	call_hooks('post_remote',$arr);