From 012b099a308711da7982c8dfe39dd89c55e1de14 Mon Sep 17 00:00:00 2001
From: Vsevolod Stakhov <vsevolod@highsecure.ru>
Date: Mon, 23 Mar 2015 16:32:34 +0000
Subject: [PATCH] Improve mime expressions processing.

---
 src/plugins/regexp.c | 36 ++++++++++++++++++++++++------------
 1 file changed, 24 insertions(+), 12 deletions(-)

diff --git a/src/plugins/regexp.c b/src/plugins/regexp.c
index 53049656a..159399dfd 100644
--- a/src/plugins/regexp.c
+++ b/src/plugins/regexp.c
@@ -138,11 +138,13 @@ regexp_module_config (struct rspamd_config *cfg)
 				ucl_obj_tostring (value), cfg->raw_mode)) {
 				res = FALSE;
 			}
-			register_symbol (&cfg->cache,
-				cur_item->symbol,
-				1,
-				process_regexp_item,
-				cur_item);
+			else {
+				register_symbol (&cfg->cache,
+						cur_item->symbol,
+						1,
+						process_regexp_item,
+						cur_item);
+			}
 		}
 		else if (value->type == UCL_USERDATA) {
 			cur_item = rspamd_mempool_alloc0 (regexp_module_ctx->regexp_pool,
@@ -176,7 +178,7 @@ regexp_module_reconfig (struct rspamd_config *cfg)
 
 static gboolean rspamd_lua_call_expression_func(
 		struct ucl_lua_funcdata *lua_data, struct rspamd_task *task,
-		GArray *args, gboolean *res)
+		GArray *args, gint *res)
 {
 	lua_State *L = lua_data->L;
 	struct rspamd_task **ptask;
@@ -213,12 +215,16 @@ static gboolean rspamd_lua_call_expression_func(
 	}
 	pop++;
 
-	if (!lua_isboolean (L, -1)) {
-		lua_pop (L, pop);
+	if (lua_type (L, -1) == LUA_TNUMBER) {
+		*res = lua_tonumber (L, -1);
+	}
+	else if (lua_type (L, -1) == LUA_TBOOLEAN) {
+		*res = lua_toboolean (L, -1);
+	}
+	else {
 		msg_info("lua function must return a boolean");
-		return FALSE;
 	}
-	*res = lua_toboolean (L, -1);
+
 	lua_pop (L, pop);
 
 	return TRUE;
@@ -229,7 +235,7 @@ static void
 process_regexp_item (struct rspamd_task *task, void *user_data)
 {
 	struct regexp_module_item *item = user_data;
-	gboolean res = FALSE;
+	gint res = FALSE;
 
 	/* Non-threaded version */
 	if (item->lua_function) {
@@ -242,7 +248,13 @@ process_regexp_item (struct rspamd_task *task, void *user_data)
 	}
 	else {
 		/* Process expression */
-		res = rspamd_process_expression (item->expr, task);
+		if (item->expr) {
+			res = rspamd_process_expression (item->expr, task);
+		}
+		else {
+			msg_warn ("FIXME: %s symbol is broken with new expressions",
+					item->symbol);
+		}
 	}
 
 	if (res) {
-- 
2.39.5