From 0e6a6fff961c238057e93c5ff90e69b6dce0afb0 Mon Sep 17 00:00:00 2001
From: Kim Alvefur <zash@zash.se>
Date: Thu, 18 Feb 2021 10:41:04 +0100
Subject: mod_http: Optimize proxy IP check
No need to do a subnet match comparison to see if two IP addresses match
exactly.
---
plugins/mod_http.lua | 3 +++
1 file changed, 3 insertions(+)
diff --git a/plugins/mod_http.lua b/plugins/mod_http.lua
index 3d2c4443..b9c0c1a4 100644
--- a/plugins/mod_http.lua
+++ b/plugins/mod_http.lua
@@ -223,6 +223,9 @@ module.add_host(module); -- set up handling on global context too
local trusted_proxies = module:get_option_set("trusted_proxies", { "127.0.0.1", "::1" })._items;
local function is_trusted_proxy(ip)
+ if trusted_proxies[ip] then
+ return true;
+ end
local parsed_ip = new_ip(ip)
for trusted_proxy in trusted_proxies do
if match_ip(parsed_ip, parse_cidr(trusted_proxy)) then
--
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