add

@@ -153,10 +153,10 @@ end
  
  
 --forbid user agent
 --forbid user agent
 function forbid_ua()
 function forbid_ua()
-    local forbid_uas = {'python-requests'}
+    local forbid_ua_table = {'python-requests'}
     local ua = http_request.get_ua()
     local ua = http_request.get_ua()
-    for forbid_ua in forbid_uas do
-      if ua and string.find(ua, forbid_ua) then
+    for i = 1, #forbid_ua_table  do
+      if ua and string.find(ua, forbid_ua_table[i]) then
          ngx.log(ngx.ERR, "[User-Agent Not Allowed]", ua)
          ngx.log(ngx.ERR, "[User-Agent Not Allowed]", ua)
          ngx.exist(HTTP_OK)
          ngx.exist(HTTP_OK)
       end
       end