From fae817031dbca39bd94e0448f3d12ecdc1914d86 Mon Sep 17 00:00:00 2001
From: Vsevolod Stakhov <vsevolod@highsecure.ru>
Date: Mon, 7 Mar 2016 12:54:55 +0000
Subject: [PATCH] [Feature] Add map:get_proto lua API method

---
 src/lua/lua_map.c | 42 ++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 42 insertions(+)

diff --git a/src/lua/lua_map.c b/src/lua/lua_map.c
index fe8f6a836..1f7ceb194 100644
--- a/src/lua/lua_map.c
+++ b/src/lua/lua_map.c
@@ -47,9 +47,21 @@ LUA_FUNCTION_DEF (map, get_key);
  */
 LUA_FUNCTION_DEF (map, is_signed);
 
+/***
+ * @method map:get_proto()
+ * Returns protocol of map as string:
+ *
+ * - `http`: for HTTP map
+ * - `file`: for file map
+ * - `embedded`: for manually created maps
+ * @return {string} string representation of the map protocol
+ */
+LUA_FUNCTION_DEF (map, get_proto);
+
 static const struct luaL_reg maplib_m[] = {
 	LUA_INTERFACE_DEF (map, get_key),
 	LUA_INTERFACE_DEF (map, is_signed),
+	LUA_INTERFACE_DEF (map, get_proto),
 	{"__tostring", rspamd_lua_class_tostring},
 	{NULL, NULL}
 };
@@ -469,6 +481,36 @@ lua_map_is_signed (lua_State *L)
 	return 1;
 }
 
+static int
+lua_map_get_proto (lua_State *L)
+{
+	struct rspamd_lua_map *map = lua_check_map (L);
+	const gchar *ret = "undefined";
+
+	if (map != NULL) {
+		if (map->map == NULL) {
+			ret = "embedded";
+		}
+		else {
+			switch (map->map->protocol) {
+			case MAP_PROTO_FILE:
+				ret = "file";
+				break;
+			case MAP_PROTO_HTTP:
+				ret = "http";
+				break;
+			}
+		}
+	}
+	else {
+		return luaL_error (L, "invalid arguments");
+	}
+
+	lua_pushstring (L, ret);
+	return 1;
+}
+
+
 void
 luaopen_map (lua_State * L)
 {
-- 
2.39.5