lego/acme/dns_challenge_test.go

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package acme
import (
"bufio"
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"crypto/rand"
"crypto/rsa"
"net/http"
"net/http/httptest"
"os"
"reflect"
"sort"
"strings"
"testing"
"time"
)
var lookupNameserversTestsOK = []struct {
fqdn string
nss []string
}{
{"books.google.com.ng.",
[]string{"ns1.google.com.", "ns2.google.com.", "ns3.google.com.", "ns4.google.com."},
},
{"www.google.com.",
[]string{"ns1.google.com.", "ns2.google.com.", "ns3.google.com.", "ns4.google.com."},
},
{"physics.georgetown.edu.",
[]string{"ns1.georgetown.edu.", "ns2.georgetown.edu.", "ns3.georgetown.edu."},
},
}
var lookupNameserversTestsErr = []struct {
fqdn string
error string
}{
// invalid tld
{"_null.n0n0.",
"Could not determine zone authoritatively",
},
// invalid domain
{"_null.com.",
"Could not determine zone authoritatively",
},
// invalid domain
{"in-valid.co.uk.",
"Could not determine zone authoritatively",
},
}
var checkAuthoritativeNssTests = []struct {
fqdn, value string
ns []string
ok bool
}{
// TXT RR w/ expected value
{"8.8.8.8.asn.routeviews.org.", "151698.8.8.024", []string{"asnums.routeviews.org."},
true,
},
// No TXT RR
{"ns1.google.com.", "", []string{"ns2.google.com."},
false,
},
}
var checkAuthoritativeNssTestsErr = []struct {
fqdn, value string
ns []string
error string
}{
// TXT RR /w unexpected value
{"8.8.8.8.asn.routeviews.org.", "fe01=", []string{"asnums.routeviews.org."},
"did not return the expected TXT record",
},
// No TXT RR
{"ns1.google.com.", "fe01=", []string{"ns2.google.com."},
"did not return the expected TXT record",
},
}
func TestDNSValidServerResponse(t *testing.T) {
preCheckDNS = func(fqdn, value string) (bool, error) {
return true, nil
}
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privKey, _ := rsa.GenerateKey(rand.Reader, 512)
ts := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
w.Header().Add("Replay-Nonce", "12345")
w.Write([]byte("{\"type\":\"dns01\",\"status\":\"valid\",\"uri\":\"http://some.url\",\"token\":\"http8\"}"))
}))
manualProvider, _ := NewDNSProviderManual()
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jws := &jws{privKey: privKey, directoryURL: ts.URL}
solver := &dnsChallenge{jws: jws, validate: validate, provider: manualProvider}
clientChallenge := challenge{Type: "dns01", Status: "pending", URI: ts.URL, Token: "http8"}
go func() {
time.Sleep(time.Second * 2)
f := bufio.NewWriter(os.Stdout)
defer f.Flush()
f.WriteString("\n")
}()
if err := solver.Solve(clientChallenge, "example.com"); err != nil {
t.Errorf("VALID: Expected Solve to return no error but the error was -> %v", err)
}
}
func TestPreCheckDNS(t *testing.T) {
ok, err := preCheckDNS("acme-staging.api.letsencrypt.org", "fe01=")
if err != nil || !ok {
t.Errorf("preCheckDNS failed for acme-staging.api.letsencrypt.org")
}
}
func TestLookupNameserversOK(t *testing.T) {
for _, tt := range lookupNameserversTestsOK {
nss, err := lookupNameservers(tt.fqdn)
if err != nil {
t.Fatalf("#%s: got %q; want nil", tt.fqdn, err)
}
sort.Strings(nss)
sort.Strings(tt.nss)
if !reflect.DeepEqual(nss, tt.nss) {
t.Errorf("#%s: got %v; want %v", tt.fqdn, nss, tt.nss)
}
}
}
func TestLookupNameserversErr(t *testing.T) {
for _, tt := range lookupNameserversTestsErr {
_, err := lookupNameservers(tt.fqdn)
if err == nil {
t.Fatalf("#%s: expected %q (error); got <nil>", tt.fqdn, tt.error)
}
if !strings.Contains(err.Error(), tt.error) {
t.Errorf("#%s: expected %q (error); got %q", tt.fqdn, tt.error, err)
continue
}
}
}
func TestCheckAuthoritativeNss(t *testing.T) {
for _, tt := range checkAuthoritativeNssTests {
ok, _ := checkAuthoritativeNss(tt.fqdn, tt.value, tt.ns)
if ok != tt.ok {
t.Errorf("%s: got %t; want %t", tt.fqdn, ok, tt.ok)
}
}
}
func TestCheckAuthoritativeNssErr(t *testing.T) {
for _, tt := range checkAuthoritativeNssTestsErr {
_, err := checkAuthoritativeNss(tt.fqdn, tt.value, tt.ns)
if err == nil {
t.Fatalf("#%s: expected %q (error); got <nil>", tt.fqdn, tt.error)
}
if !strings.Contains(err.Error(), tt.error) {
t.Errorf("#%s: expected %q (error); got %q", tt.fqdn, tt.error, err)
continue
}
}
}
func TestWaitForTimeout(t *testing.T) {
c := make(chan error)
go func() {
err := waitFor(3, 1, func() (bool, error) {
return false, nil
})
c <- err
}()
timeout := time.After(4 * time.Second)
select {
case <-timeout:
t.Fatal("timeout exceeded")
case err := <-c:
if err == nil {
t.Errorf("expected timeout error; got %v", err)
}
}
}