[Feature] Allow to extract CTE in Lua API

diff --git a/src/lua/lua_mimepart.c b/src/lua/lua_mimepart.c
index 1ff3dbd582064a2ffc3b5dbfeb18d2d43403e65d..8a9fb85e11323125399208cdcb7d0e8150b18a38 100644 (file)
--- a/src/lua/lua_mimepart.c
+++ b/src/lua/lua_mimepart.c
@@ -226,9 +226,17 @@ LUA_FUNCTION_DEF (mimepart, get_length);
 /***
  * @method mime_part:get_type()
  * Extract content-type string of the mime part
- * @return {string} content type in form 'type/subtype'
+ * @return {string,string} content type in form 'type','subtype'
  */
 LUA_FUNCTION_DEF (mimepart, get_type);
+
+/***
+ * @method mime_part:get_cte()
+ * Extract content-transfer-encoding for a part
+ * @return {string} content transfer encoding (e.g. `base64` or `7bit`)
+ */
+LUA_FUNCTION_DEF (mimepart, get_cte);
+
 /***
  * @method mime_part:get_filename()
  * Extract filename associated with mime part if it is an attachement
@@ -304,6 +312,7 @@ static const struct luaL_reg mimepartlib_m[] = {
        LUA_INTERFACE_DEF (mimepart, get_content),
        LUA_INTERFACE_DEF (mimepart, get_length),
        LUA_INTERFACE_DEF (mimepart, get_type),
+       LUA_INTERFACE_DEF (mimepart, get_cte),
        LUA_INTERFACE_DEF (mimepart, get_filename),
        LUA_INTERFACE_DEF (mimepart, get_header),
        LUA_INTERFACE_DEF (mimepart, get_header_raw),
@@ -688,6 +697,21 @@ lua_mimepart_get_type (lua_State * L)
        return 2;
 }
 
+static gint
+lua_mimepart_get_cte (lua_State * L)
+{
+       struct rspamd_mime_part *part = lua_check_mimepart (L);
+
+       if (part == NULL) {
+               lua_pushnil (L);
+               return 1;
+       }
+
+       lua_pushstring (L, rspamd_cte_to_string (part->cte));
+
+       return 1;
+}
+
 static gint
 lua_mimepart_get_filename (lua_State * L)
 {