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- // 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,
- }
- }
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