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package certmagic
// Code in this file adapted from go-acme/lego, July 2020:
// https://github.com/go-acme/lego
// by Ludovic Fernandez and Dominik Menke
//
// It has been modified.
import (
"net"
"reflect"
"sort"
"strings"
"testing"
)
func TestLookupNameserversErr(t *testing.T) {
testCases := []struct {
desc string
fqdn string
error string
}{
{
desc: "invalid tld",
fqdn: "_null.n0n0.",
error: "could not determine the zone",
},
}
for i, test := range testCases {
test := test
t.Run(test.desc, func(t *testing.T) {
t.Parallel()
_, err := lookupNameservers(test.fqdn, nil)
if err == nil {
t.Errorf("expected error, got none")
}
if !strings.Contains(err.Error(), test.error) {
t.Errorf("Test %d: Expected error to contain '%s' but got '%s'", i, test.error, err.Error())
}
})
}
}
var findXByFqdnTestCases = []struct {
desc string
fqdn string
zone string
primaryNs string
nameservers []string
expectedError string
}{
{
desc: "domain is a CNAME",
fqdn: "scholar.google.com.",
zone: "google.com.",
primaryNs: "ns1.google.com.",
nameservers: recursiveNameservers(nil),
},
{
desc: "domain is a non-existent subdomain",
fqdn: "foo.google.com.",
zone: "google.com.",
primaryNs: "ns1.google.com.",
nameservers: recursiveNameservers(nil),
},
{
desc: "domain is a eTLD",
fqdn: "example.com.ac.",
zone: "ac.",
primaryNs: "a0.nic.ac.",
nameservers: recursiveNameservers(nil),
},
//{
// desc: "domain is a cross-zone CNAME",
// fqdn: "cross-zone-example.assets.sh.",
// zone: "assets.sh.",
// primaryNs: "gina.ns.cloudflare.com.",
// nameservers: recursiveNameservers(nil),
//},
{
desc: "NXDOMAIN",
fqdn: "test.loho.jkl.",
zone: "loho.jkl.",
nameservers: []string{"1.1.1.1:53"},
expectedError: "could not find the start of authority for test.loho.jkl.: NXDOMAIN",
},
{
desc: "several non existent nameservers",
fqdn: "scholar.google.com.",
zone: "google.com.",
primaryNs: "ns1.google.com.",
nameservers: []string{":7053", ":8053", "1.1.1.1:53"},
},
{
desc: "only non existent nameservers",
fqdn: "scholar.google.com.",
zone: "google.com.",
nameservers: []string{":7053", ":8053", ":9053"},
expectedError: "could not find the start of authority for scholar.google.com.:",
},
{
desc: "no nameservers",
fqdn: "test.ldez.com.",
zone: "ldez.com.",
nameservers: []string{},
expectedError: "could not find the start of authority for test.ldez.com.",
},
}
func TestResolveConfServers(t *testing.T) {
var testCases = []struct {
fixture string
expected []string
defaults []string
}{
{
fixture: "testdata/resolv.conf.1",
defaults: []string{"127.0.0.1:53"},
expected: []string{"10.200.3.249", "10.200.3.250:5353", "2001:4860:4860::8844", "[10.0.0.1]:5353"},
},
{
fixture: "testdata/resolv.conf.nonexistant",
defaults: []string{"127.0.0.1:53"},
expected: []string{"127.0.0.1:53"},
},
}
for i, test := range testCases {
t.Run(test.fixture, func(t *testing.T) {
result := systemOrDefaultNameservers(test.fixture, test.defaults)
sort.Strings(result)
sort.Strings(test.expected)
if !reflect.DeepEqual(test.expected, result) {
t.Errorf("Test %d: Expected %v but got %v", i, test.expected, result)
}
})
}
}
func TestRecursiveNameserversAddsPort(t *testing.T) {
type want struct {
port string
}
custom := []string{"127.0.0.1", "ns1.google.com:43"}
expectations := []want{{port: "53"}, {port: "43"}}
results := recursiveNameservers(custom)
if !reflect.DeepEqual(custom, []string{"127.0.0.1", "ns1.google.com:43"}) {
t.Errorf("Expected custom nameservers to be unmodified. got %v", custom)
}
if len(results) != len(expectations) {
t.Errorf("%v wrong results length. got %d, want %d", results, len(results), len(expectations))
}
var hasCustom bool
for i, res := range results {
hasCustom = hasCustom || strings.HasPrefix(res, custom[0])
if _, port, err := net.SplitHostPort(res); err != nil {
t.Errorf("%v Error splitting result %d into host and port: %v", results, i, err)
} else {
if port != expectations[i].port {
t.Errorf("%v Expected result %d to have port %s but got %s", results, i, expectations[i].port, port)
}
}
}
if !hasCustom {
t.Errorf("%v Expected custom resolvers to be included, but they weren't: %v", results, custom)
}
}
func TestRecursiveNameserversDefaults(t *testing.T) {
results := recursiveNameservers(nil)
if len(results) < 1 {
t.Errorf("%v Expected at least 1 records as default when nil custom", results)
}
results = recursiveNameservers([]string{})
if len(results) < 1 {
t.Errorf("%v Expected at least 1 records as default when empty custom", results)
}
}
func clearFqdnCache() {
fqdnSOACacheMu.Lock()
fqdnSOACache = make(map[string]*soaCacheEntry)
fqdnSOACacheMu.Unlock()
}
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