From 5a1212eb124c2daa1aeea6aac0a4e3e75c9cdda6 Mon Sep 17 00:00:00 2001
From: guozhandong <18896723979@139.com>
Date: Tue, 15 Nov 2016 17:03:14 +0800
Subject: [PATCH] rgw: skip empty http args in method parse() to avoid extra
 effort

Signed-off-by: Guo Zhandong <guozhandong@cmss.chinamobile.com>
---
 src/rgw/rgw_common.cc | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/src/rgw/rgw_common.cc b/src/rgw/rgw_common.cc
index 9aa6f3c4d7d9..36ddf9b5ca46 100644
--- a/src/rgw/rgw_common.cc
+++ b/src/rgw/rgw_common.cc
@@ -733,7 +733,12 @@ int RGWHTTPArgs::parse()
 {
   int pos = 0;
   bool end = false;
-  if (str[pos] == '?') pos++;
+
+  if (str.empty())
+    return 0;
+
+  if (str[pos] == '?')
+    pos++;
 
   while (!end) {
     int fpos = str.find('&', pos);
-- 
2.47.3