From b38a1ad26bbbc0a40bbdddf2b7d6dea6c3bd049a Mon Sep 17 00:00:00 2001
From: Vsevolod Stakhov <vsevolod@highsecure.ru>
Date: Fri, 11 Oct 2019 12:24:29 +0100
Subject: [Minor] Add default limit for rbl requests

---
 src/lua/lua_config.c | 24 ++++++++++++++++++++++++
 1 file changed, 24 insertions(+)

(limited to 'src/lua')

diff --git a/src/lua/lua_config.c b/src/lua/lua_config.c
index f047f1530..f75899f08 100644
--- a/src/lua/lua_config.c
+++ b/src/lua/lua_config.c
@@ -810,6 +810,13 @@ LUA_FUNCTION_DEF (config, init_subsystem);
  */
 LUA_FUNCTION_DEF (config, get_tld_path);
 
+/***
+ * @method rspamd_config:get_dns_max_requests()
+ * Returns limit of DNS requests per task
+ * @return {number} number of dns requests allowed
+ */
+LUA_FUNCTION_DEF (config, get_dns_max_requests);
+
 static const struct luaL_reg configlib_m[] = {
 	LUA_INTERFACE_DEF (config, get_module_opt),
 	LUA_INTERFACE_DEF (config, get_mempool),
@@ -882,6 +889,7 @@ static const struct luaL_reg configlib_m[] = {
 	LUA_INTERFACE_DEF (config, init_modules),
 	LUA_INTERFACE_DEF (config, init_subsystem),
 	LUA_INTERFACE_DEF (config, get_tld_path),
+	LUA_INTERFACE_DEF (config, get_dns_max_requests),
 	{"__tostring", rspamd_lua_class_tostring},
 	{"__newindex", lua_config_newindex},
 	{NULL, NULL}
@@ -4301,6 +4309,22 @@ lua_config_get_tld_path (lua_State *L)
 	return 1;
 }
 
+static gint
+lua_config_get_dns_max_requests (lua_State *L)
+{
+	LUA_TRACE_POINT;
+	struct rspamd_config *cfg = lua_check_config (L, 1);
+
+	if (cfg != NULL) {
+		lua_pushinteger (L, cfg->dns_max_requests);
+	}
+	else {
+		return luaL_error (L, "invalid arguments");
+	}
+
+	return 1;
+}
+
 static gint
 lua_monitored_alive (lua_State *L)
 {
-- 
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