From aee820262b05a9d7c87d27ab7cccd626455efc90 Mon Sep 17 00:00:00 2001
From: Vsevolod Stakhov <vsevolod@highsecure.ru>
Date: Wed, 28 Dec 2016 11:48:19 +0000
Subject: [PATCH] [Minor] Add methods to get symbols cache checksum

---
 src/libserver/symbols_cache.c |  8 ++++++++
 src/libserver/symbols_cache.h |  7 +++++++
 src/lua/lua_config.c          | 28 ++++++++++++++++++++++++++++
 3 files changed, 43 insertions(+)

diff --git a/src/libserver/symbols_cache.c b/src/libserver/symbols_cache.c
index e57a45ce6..45aca9d2e 100644
--- a/src/libserver/symbols_cache.c
+++ b/src/libserver/symbols_cache.c
@@ -2196,3 +2196,11 @@ rspamd_symbols_cache_enable_symbol (struct symbols_cache *cache,
 		item->enabled = TRUE;
 	}
 }
+
+guint64
+rspamd_symbols_cache_get_cksum (struct symbols_cache *cache)
+{
+	g_assert (cache != NULL);
+
+	return cache->cksum;
+}
diff --git a/src/libserver/symbols_cache.h b/src/libserver/symbols_cache.h
index c9877a830..6be4de01c 100644
--- a/src/libserver/symbols_cache.h
+++ b/src/libserver/symbols_cache.h
@@ -261,4 +261,11 @@ gboolean rspamd_symbols_cache_process_settings (struct rspamd_task *task,
  */
 gboolean rspamd_symbols_cache_is_checked (struct rspamd_task *task,
 		struct symbols_cache *cache, const gchar *symbol);
+
+/**
+ * Returns checksum for all cache items
+ * @param cache
+ * @return
+ */
+guint64 rspamd_symbols_cache_get_cksum (struct symbols_cache *cache);
 #endif
diff --git a/src/lua/lua_config.c b/src/lua/lua_config.c
index 7c2b84609..79faeb322 100644
--- a/src/lua/lua_config.c
+++ b/src/lua/lua_config.c
@@ -498,6 +498,13 @@ LUA_FUNCTION_DEF (config, add_periodic);
  */
 LUA_FUNCTION_DEF (config, get_symbols_count);
 
+/***
+ * @method rspamd_config:get_symbols_cksum()
+ * Returns checksum for all symbols in the cache
+ * @return {int64} boxed value of the 64 bit checksum
+ */
+LUA_FUNCTION_DEF (config, get_symbols_cksum);
+
 /***
  * @method rspamd_config:get_symbol_callback(name)
  * Returns callback function for the specified symbol if it is a lua registered callback
@@ -584,6 +591,7 @@ static const struct luaL_reg configlib_m[] = {
 	LUA_INTERFACE_DEF (config, add_on_load),
 	LUA_INTERFACE_DEF (config, add_periodic),
 	LUA_INTERFACE_DEF (config, get_symbols_count),
+	LUA_INTERFACE_DEF (config, get_symbols_cksum),
 	LUA_INTERFACE_DEF (config, get_symbol_callback),
 	LUA_INTERFACE_DEF (config, set_symbol_callback),
 	LUA_INTERFACE_DEF (config, register_finish_script),
@@ -2171,6 +2179,26 @@ lua_config_get_symbols_count (lua_State *L)
 	return 1;
 }
 
+static gint
+lua_config_get_symbols_cksum (lua_State *L)
+{
+	struct rspamd_config *cfg = lua_check_config (L, 1);
+	guint64 res = 0, *pres;
+
+	if (cfg != NULL) {
+		res = rspamd_symbols_cache_get_cksum (cfg->cache);
+	}
+	else {
+		return luaL_error (L, "invalid arguments");
+	}
+
+	pres = lua_newuserdata (L, sizeof (res));
+	*pres = res;
+	rspamd_lua_setclass (L, "rspamd{int64}", -1);
+
+	return 1;
+}
+
 static gint
 lua_config_get_symbol_callback (lua_State *L)
 {
-- 
2.39.5