From d2e66641322a3297be6a3a6680d10ed7b6720c0e Mon Sep 17 00:00:00 2001
From: Brion Vibber <brion@pobox.com>
Date: Fri, 19 Mar 2010 10:15:00 -0700
Subject: [PATCH] Validate OStatus avatar URL before fetching.

---
 plugins/OStatus/classes/Ostatus_profile.php | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/plugins/OStatus/classes/Ostatus_profile.php b/plugins/OStatus/classes/Ostatus_profile.php
index 6ae8e4fd58..6145080fc7 100644
--- a/plugins/OStatus/classes/Ostatus_profile.php
+++ b/plugins/OStatus/classes/Ostatus_profile.php
@@ -781,8 +781,8 @@ class Ostatus_profile extends Memcached_DataObject
     }
 
     /**
-     *
      * Download and update given avatar image
+     *
      * @param string $url
      * @throws Exception in various failure cases
      */
@@ -792,6 +792,9 @@ class Ostatus_profile extends Memcached_DataObject
             // We've already got this one.
             return;
         }
+        if (!common_valid_http_url($url)) {
+            throw new ServerException(_m("Invalid avatar URL %s"), $url);
+        }
 
         if ($this->isGroup()) {
             $self = $this->localGroup();