修改IP的获取方式

@@ -214,7 +214,7 @@ function helper_table_contains(t, value)
 
 function limit_ufo_local()
   if ngx.var.host == '2.yohobuy.com' or ngx.var.host == 'ufoapi.yohoops.org' or ngx.var.host == '2gray.yohobuy.com' then
-   local t_local_methods = {   } --only allow local access
+   local t_local_methods = { 'ufo.coupons.send' } --only allow local access
    local m = http_request.get_method() 
    if helper_table_contains(t_local_methods, m) then  
       local is_local = limit_local:check_local_access()

@@ -23,27 +23,9 @@ local local_cidr = {
     "123.206.73.107"
 }
 
-local function get_ip()
-
-  local realIp = nil
-  local xForwardFor =  ngx.var.http_x_forwarded_for;
-  if xForwardFor then
-    local ips={}
-    string.gsub(xForwardFor,'[^,]+',function(w) table.insert(ips, w) end )
-    realIp=ips[#ips]
-  end  
-  
-  -- if not exist, then setup remote_addr
-  if realIp == nil then
-    realIp = ngx.var.remote_addr;
-  end
-  
-  if realIp then
-    realIp=string.gsub(realIp,"%s","")
-  end
-
+local function get_ip() 
+  local realIp = ngx.var.remote_addr;
   return realIp;
-  
 end
 
  -- check if ip is local