// Copyright (C) 2018 The Syncthing Authors. // // This Source Code Form is subject to the terms of the Mozilla Public // License, v. 2.0. If a copy of the MPL was not distributed with this file, // You can obtain one at https://mozilla.org/MPL/2.0/. package main import ( "fmt" "net" "testing" ) func TestFixupAddresses(t *testing.T) { cases := []struct { remote *net.TCPAddr in []string out []string }{ { // verbatim passthrough in: []string{"tcp://1.2.3.4:22000"}, out: []string{"tcp://1.2.3.4:22000"}, }, { // unspecified replaced by remote remote: addr("1.2.3.4", 22000), in: []string{"tcp://:22000", "tcp://192.0.2.42:22000"}, out: []string{"tcp://1.2.3.4:22000", "tcp://192.0.2.42:22000"}, }, { // unspecified not used as replacement remote: addr("0.0.0.0", 22000), in: []string{"tcp://:22000", "tcp://192.0.2.42:22000"}, out: []string{"tcp://192.0.2.42:22000"}, }, { // unspecified not used as replacement remote: addr("::", 22000), in: []string{"tcp://:22000", "tcp://192.0.2.42:22000"}, out: []string{"tcp://192.0.2.42:22000"}, }, { // localhost not used as replacement remote: addr("127.0.0.1", 22000), in: []string{"tcp://:22000", "tcp://192.0.2.42:22000"}, out: []string{"tcp://192.0.2.42:22000"}, }, { // localhost not used as replacement remote: addr("::1", 22000), in: []string{"tcp://:22000", "tcp://192.0.2.42:22000"}, out: []string{"tcp://192.0.2.42:22000"}, }, { // multicast not used as replacement remote: addr("224.0.0.1", 22000), in: []string{"tcp://:22000", "tcp://192.0.2.42:22000"}, out: []string{"tcp://192.0.2.42:22000"}, }, { // multicast not used as replacement remote: addr("ff80::42", 22000), in: []string{"tcp://:22000", "tcp://192.0.2.42:22000"}, out: []string{"tcp://192.0.2.42:22000"}, }, { // explicitly announced weirdness is also filtered remote: addr("192.0.2.42", 22000), in: []string{"tcp://:22000", "tcp://127.1.2.3:22000", "tcp://[::1]:22000", "tcp://[ff80::42]:22000"}, out: []string{"tcp://192.0.2.42:22000"}, }, { // port remapping remote: addr("123.123.123.123", 9000), in: []string{"tcp://0.0.0.0:0"}, out: []string{"tcp://123.123.123.123:9000"}, }, { // unspecified port remapping remote: addr("123.123.123.123", 9000), in: []string{"tcp://:0"}, out: []string{"tcp://123.123.123.123:9000"}, }, { // empty remapping remote: addr("123.123.123.123", 9000), in: []string{"tcp://"}, out: []string{}, }, { // port only remapping remote: addr("123.123.123.123", 9000), in: []string{"tcp://44.44.44.44:0"}, out: []string{"tcp://44.44.44.44:9000"}, }, } for _, tc := range cases { out := fixupAddresses(tc.remote, tc.in) if fmt.Sprint(out) != fmt.Sprint(tc.out) { t.Errorf("fixupAddresses(%v, %v) => %v, expected %v", tc.remote, tc.in, out, tc.out) } } } func addr(host string, port int) *net.TCPAddr { return &net.TCPAddr{ IP: net.ParseIP(host), Port: port, } }