[Feature] Add map:set_sign_key and map:get_sign_key

diff --git a/src/lua/lua_map.c b/src/lua/lua_map.c
index 1f7ceb194a9017c3a91d73518ffe7ed2c4c815b0..c2aac1f42620e8155cf67a9b7f16b715c18024cc 100644 (file)
--- a/src/lua/lua_map.c
+++ b/src/lua/lua_map.c
@@ -58,10 +58,26 @@ LUA_FUNCTION_DEF (map, is_signed);
  */
 LUA_FUNCTION_DEF (map, get_proto);
 
+/***
+ * @method map:get_sign_key()
+ * Returns pubkey used for signing as base32 string or nil
+ * @return {string} base32 encoded string or nil
+ */
+LUA_FUNCTION_DEF (map, get_sign_key);
+
+/***
+ * @method map:set_sign_key(key)
+ * Set trusted key for signatures for this map
+ * @param {string} key base32 encoded string or nil
+ */
+LUA_FUNCTION_DEF (map, set_sign_key);
+
 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),
+       LUA_INTERFACE_DEF (map, get_sign_key),
+       LUA_INTERFACE_DEF (map, set_sign_key),
        {"__tostring", rspamd_lua_class_tostring},
        {NULL, NULL}
 };
@@ -510,6 +526,69 @@ lua_map_get_proto (lua_State *L)
        return 1;
 }
 
+static int
+lua_map_get_sign_key (lua_State *L)
+{
+       struct rspamd_lua_map *map = lua_check_map (L);
+       GString *ret = NULL;
+
+       if (map != NULL) {
+               if (map->map && map->map->trusted_pubkey) {
+                       ret = rspamd_pubkey_print (map->map->trusted_pubkey,
+                                       RSPAMD_KEYPAIR_PUBKEY|RSPAMD_KEYPAIR_BASE32);
+               }
+       }
+       else {
+               return luaL_error (L, "invalid arguments");
+       }
+
+       if (ret) {
+               lua_pushlstring (L, ret->str, ret->len);
+               g_string_free (ret, TRUE);
+       }
+       else {
+               lua_pushnil (L);
+       }
+
+       return 1;
+}
+
+static int
+lua_map_set_sign_key (lua_State *L)
+{
+       struct rspamd_lua_map *map = lua_check_map (L);
+       const gchar *pk_str;
+       struct rspamd_cryptobox_pubkey *pk;
+       gsize len;
+
+       pk_str = lua_tolstring (L, 2, &len);
+
+       if (map && pk_str) {
+
+               if (!map->map) {
+                       return luaL_error (L, "cannot set key for embedded maps");
+               }
+
+               pk = rspamd_pubkey_from_base32 (pk_str, len, RSPAMD_KEYPAIR_SIGN,
+                               RSPAMD_CRYPTOBOX_MODE_25519);
+
+               if (!pk) {
+                       return luaL_error (L, "invalid pubkey string");
+               }
+
+               if (map->map->trusted_pubkey) {
+                       /* Unref old pk */
+                       rspamd_pubkey_unref (map->map->trusted_pubkey);
+               }
+
+               map->map->trusted_pubkey = pk;
+       }
+       else {
+               return luaL_error (L, "invalid arguments");
+       }
+
+       return 0;
+}
 
 void
 luaopen_map (lua_State * L)