caddy/caddytls/setup_test.go
2018-12-13 07:34:00 -07:00

434 lines
13 KiB
Go

// Copyright 2015 Light Code Labs, LLC
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package caddytls
import (
"crypto/tls"
"io/ioutil"
"log"
"os"
"testing"
"github.com/mholt/caddy"
"github.com/mholt/certmagic"
"github.com/xenolf/lego/certcrypto"
)
func TestMain(m *testing.M) {
// Write test certificates to disk before tests, and clean up
// when we're done.
err := ioutil.WriteFile(certFile, testCert, 0644)
if err != nil {
log.Fatal(err)
}
err = ioutil.WriteFile(keyFile, testKey, 0644)
if err != nil {
os.Remove(certFile)
log.Fatal(err)
}
result := m.Run()
os.Remove(certFile)
os.Remove(keyFile)
os.Exit(result)
}
func TestSetupParseBasic(t *testing.T) {
cfg := &Config{Manager: &certmagic.Config{}}
RegisterConfigGetter("", func(c *caddy.Controller) *Config { return cfg })
c := caddy.NewTestController("", `tls `+certFile+` `+keyFile+``)
err := setupTLS(c)
if err != nil {
t.Errorf("Expected no errors, got: %v", err)
}
// Basic checks
if !cfg.Manual {
t.Error("Expected TLS Manual=true, but was false")
}
if !cfg.Enabled {
t.Error("Expected TLS Enabled=true, but was false")
}
// Security defaults
if cfg.ProtocolMinVersion != tls.VersionTLS12 {
t.Errorf("Expected 'tls1.2 (0x0303)' as ProtocolMinVersion, got %#v", cfg.ProtocolMinVersion)
}
if cfg.ProtocolMaxVersion != tls.VersionTLS12 {
t.Errorf("Expected 'tls1.2 (0x0303)' as ProtocolMaxVersion, got %v", cfg.ProtocolMaxVersion)
}
// Cipher checks
expectedCiphers := append([]uint16{tls.TLS_FALLBACK_SCSV}, getPreferredDefaultCiphers()...)
// Ensure count is correct (plus one for TLS_FALLBACK_SCSV)
if len(cfg.Ciphers) != len(expectedCiphers) {
t.Errorf("Expected %v Ciphers (including TLS_FALLBACK_SCSV), got %v",
len(expectedCiphers), len(cfg.Ciphers))
}
// Ensure ordering is correct
for i, actual := range cfg.Ciphers {
if actual != expectedCiphers[i] {
t.Errorf("Expected cipher in position %d to be %0x, got %0x", i, expectedCiphers[i], actual)
}
}
if !cfg.PreferServerCipherSuites {
t.Error("Expected PreferServerCipherSuites = true, but was false")
}
if len(cfg.ALPN) != 0 {
t.Error("Expected ALPN empty by default")
}
// Ensure curve count is correct
if len(cfg.CurvePreferences) != len(defaultCurves) {
t.Errorf("Expected %v Curves, got %v", len(defaultCurves), len(cfg.CurvePreferences))
}
// Ensure curve ordering is correct
for i, actual := range cfg.CurvePreferences {
if actual != defaultCurves[i] {
t.Errorf("Expected curve in position %d to be %0x, got %0x", i, defaultCurves[i], actual)
}
}
}
func TestSetupParseIncompleteParams(t *testing.T) {
// Using tls without args is an error because it's unnecessary.
c := caddy.NewTestController("", `tls`)
err := setupTLS(c)
if err == nil {
t.Error("Expected an error, but didn't get one")
}
}
func TestSetupParseWithOptionalParams(t *testing.T) {
params := `tls ` + certFile + ` ` + keyFile + ` {
protocols tls1.0 tls1.2
ciphers RSA-AES256-CBC-SHA ECDHE-RSA-AES128-GCM-SHA256 ECDHE-ECDSA-AES256-GCM-SHA384
must_staple
alpn http/1.1
}`
cfg := &Config{Manager: &certmagic.Config{}}
RegisterConfigGetter("", func(c *caddy.Controller) *Config { return cfg })
c := caddy.NewTestController("", params)
err := setupTLS(c)
if err != nil {
t.Errorf("Expected no errors, got: %v", err)
}
if cfg.ProtocolMinVersion != tls.VersionTLS10 {
t.Errorf("Expected 'tls1.0 (0x0301)' as ProtocolMinVersion, got %#v", cfg.ProtocolMinVersion)
}
if cfg.ProtocolMaxVersion != tls.VersionTLS12 {
t.Errorf("Expected 'tls1.2 (0x0303)' as ProtocolMaxVersion, got %#v", cfg.ProtocolMaxVersion)
}
if len(cfg.Ciphers)-1 != 3 {
t.Errorf("Expected 3 Ciphers (not including TLS_FALLBACK_SCSV), got %v", len(cfg.Ciphers)-1)
}
if !cfg.Manager.MustStaple {
t.Error("Expected must staple to be true")
}
if len(cfg.ALPN) != 1 || cfg.ALPN[0] != "http/1.1" {
t.Errorf("Expected ALPN to contain only 'http/1.1' but got: %v", cfg.ALPN)
}
}
func TestSetupDefaultWithOptionalParams(t *testing.T) {
params := `tls {
ciphers RSA-3DES-EDE-CBC-SHA
}`
cfg := &Config{Manager: &certmagic.Config{}}
RegisterConfigGetter("", func(c *caddy.Controller) *Config { return cfg })
c := caddy.NewTestController("", params)
err := setupTLS(c)
if err != nil {
t.Errorf("Expected no errors, got: %v", err)
}
if len(cfg.Ciphers)-1 != 1 {
t.Errorf("Expected 1 ciphers (not including TLS_FALLBACK_SCSV), got %v", len(cfg.Ciphers)-1)
}
}
func TestSetupParseWithWrongOptionalParams(t *testing.T) {
// Test protocols wrong params
params := `tls ` + certFile + ` ` + keyFile + ` {
protocols ssl tls
}`
cfg := &Config{Manager: &certmagic.Config{}}
RegisterConfigGetter("", func(c *caddy.Controller) *Config { return cfg })
c := caddy.NewTestController("", params)
err := setupTLS(c)
if err == nil {
t.Errorf("Expected errors, but no error returned")
}
// Test ciphers wrong params
params = `tls ` + certFile + ` ` + keyFile + ` {
ciphers not-valid-cipher
}`
cfg = &Config{Manager: &certmagic.Config{}}
RegisterConfigGetter("", func(c *caddy.Controller) *Config { return cfg })
c = caddy.NewTestController("", params)
err = setupTLS(c)
if err == nil {
t.Error("Expected errors, but no error returned")
}
// Test key_type wrong params
params = `tls {
key_type ab123
}`
cfg = &Config{Manager: &certmagic.Config{}}
RegisterConfigGetter("", func(c *caddy.Controller) *Config { return cfg })
c = caddy.NewTestController("", params)
err = setupTLS(c)
if err == nil {
t.Error("Expected errors, but no error returned")
}
// Test curves wrong params
params = `tls {
curves ab123, cd456, ef789
}`
cfg = &Config{Manager: &certmagic.Config{}}
RegisterConfigGetter("", func(c *caddy.Controller) *Config { return cfg })
c = caddy.NewTestController("", params)
err = setupTLS(c)
if err == nil {
t.Error("Expected errors, but no error returned")
}
}
func TestSetupParseWithClientAuth(t *testing.T) {
// Test missing client cert file
params := `tls ` + certFile + ` ` + keyFile + ` {
clients
}`
cfg := &Config{Manager: &certmagic.Config{}}
RegisterConfigGetter("", func(c *caddy.Controller) *Config { return cfg })
c := caddy.NewTestController("", params)
err := setupTLS(c)
if err == nil {
t.Error("Expected an error, but no error returned")
}
noCAs, twoCAs := []string{}, []string{"client_ca.crt", "client2_ca.crt"}
for caseNumber, caseData := range []struct {
params string
clientAuthType tls.ClientAuthType
expectedErr bool
expectedCAs []string
}{
{"", tls.NoClientCert, false, noCAs},
{`tls ` + certFile + ` ` + keyFile + ` {
clients client_ca.crt client2_ca.crt
}`, tls.RequireAndVerifyClientCert, false, twoCAs},
// now come modifier
{`tls ` + certFile + ` ` + keyFile + ` {
clients request
}`, tls.RequestClientCert, false, noCAs},
{`tls ` + certFile + ` ` + keyFile + ` {
clients require
}`, tls.RequireAnyClientCert, false, noCAs},
{`tls ` + certFile + ` ` + keyFile + ` {
clients verify_if_given client_ca.crt client2_ca.crt
}`, tls.VerifyClientCertIfGiven, false, twoCAs},
{`tls ` + certFile + ` ` + keyFile + ` {
clients verify_if_given
}`, tls.VerifyClientCertIfGiven, true, noCAs},
} {
certCache := certmagic.NewCache(certmagic.DefaultStorage)
cfg := &Config{Manager: certmagic.NewWithCache(certCache, certmagic.Config{})}
RegisterConfigGetter("", func(c *caddy.Controller) *Config { return cfg })
c := caddy.NewTestController("", caseData.params)
err := setupTLS(c)
if caseData.expectedErr {
if err == nil {
t.Errorf("In case %d: Expected an error, got: %v", caseNumber, err)
}
continue
}
if err != nil {
t.Errorf("In case %d: Expected no errors, got: %v", caseNumber, err)
}
if caseData.clientAuthType != cfg.ClientAuth {
t.Errorf("In case %d: Expected TLS client auth type %v, got: %v",
caseNumber, caseData.clientAuthType, cfg.ClientAuth)
}
if count := len(cfg.ClientCerts); count < len(caseData.expectedCAs) {
t.Fatalf("In case %d: Expected %d client certs, had %d", caseNumber, len(caseData.expectedCAs), count)
}
for idx, expected := range caseData.expectedCAs {
if actual := cfg.ClientCerts[idx]; actual != expected {
t.Errorf("In case %d: Expected %dth client cert file to be '%s', but was '%s'",
caseNumber, idx, expected, actual)
}
}
}
}
func TestSetupParseWithCAUrl(t *testing.T) {
testURL := "https://acme-staging.api.letsencrypt.org/directory"
for caseNumber, caseData := range []struct {
params string
expectedErr bool
expectedCAUrl string
}{
// Test working case
{`tls {
ca ` + testURL + `
}`, false, testURL},
// Test too few args
{`tls {
ca
}`, true, ""},
// Test too many args
{`tls {
ca 1 2
}`, true, ""},
} {
cfg := &Config{Manager: &certmagic.Config{}}
RegisterConfigGetter("", func(c *caddy.Controller) *Config { return cfg })
c := caddy.NewTestController("", caseData.params)
err := setupTLS(c)
if caseData.expectedErr {
if err == nil {
t.Errorf("In case %d: Expected an error, got: %v", caseNumber, err)
}
continue
}
if err != nil {
t.Errorf("In case %d: Expected no errors, got: %v", caseNumber, err)
}
if cfg.Manager.CA != caseData.expectedCAUrl {
t.Errorf("Expected '%v' as CAUrl, got %#v", caseData.expectedCAUrl, cfg.Manager.CA)
}
}
}
func TestSetupParseWithKeyType(t *testing.T) {
params := `tls {
key_type p384
}`
cfg := &Config{Manager: &certmagic.Config{}}
RegisterConfigGetter("", func(c *caddy.Controller) *Config { return cfg })
c := caddy.NewTestController("", params)
err := setupTLS(c)
if err != nil {
t.Errorf("Expected no errors, got: %v", err)
}
if cfg.Manager.KeyType != certcrypto.EC384 {
t.Errorf("Expected 'P384' as KeyType, got %#v", cfg.Manager.KeyType)
}
}
func TestSetupParseWithCurves(t *testing.T) {
params := `tls {
curves x25519 p256 p384 p521
}`
cfg := &Config{Manager: &certmagic.Config{}}
RegisterConfigGetter("", func(c *caddy.Controller) *Config { return cfg })
c := caddy.NewTestController("", params)
err := setupTLS(c)
if err != nil {
t.Errorf("Expected no errors, got: %v", err)
}
if len(cfg.CurvePreferences) != 4 {
t.Errorf("Expected 4 curves, got %v", len(cfg.CurvePreferences))
}
expectedCurves := []tls.CurveID{tls.X25519, tls.CurveP256, tls.CurveP384, tls.CurveP521}
// Ensure ordering is correct
for i, actual := range cfg.CurvePreferences {
if actual != expectedCurves[i] {
t.Errorf("Expected curve in position %d to be %v, got %v", i, expectedCurves[i], actual)
}
}
}
func TestSetupParseWithOneTLSProtocol(t *testing.T) {
params := `tls {
protocols tls1.2
}`
cfg := &Config{Manager: &certmagic.Config{}}
RegisterConfigGetter("", func(c *caddy.Controller) *Config { return cfg })
c := caddy.NewTestController("", params)
err := setupTLS(c)
if err != nil {
t.Errorf("Expected no errors, got: %v", err)
}
if cfg.ProtocolMinVersion != cfg.ProtocolMaxVersion {
t.Errorf("Expected ProtocolMinVersion to be the same as ProtocolMaxVersion")
}
if cfg.ProtocolMinVersion != tls.VersionTLS12 && cfg.ProtocolMaxVersion != tls.VersionTLS12 {
t.Errorf("Expected 'tls1.2 (0x0303)' as ProtocolMinVersion/ProtocolMaxVersion, got %v/%v", cfg.ProtocolMinVersion, cfg.ProtocolMaxVersion)
}
}
const (
certFile = "test_cert.pem"
keyFile = "test_key.pem"
)
var testCert = []byte(`-----BEGIN CERTIFICATE-----
MIIBkjCCATmgAwIBAgIJANfFCBcABL6LMAkGByqGSM49BAEwFDESMBAGA1UEAxMJ
bG9jYWxob3N0MB4XDTE2MDIxMDIyMjAyNFoXDTE4MDIwOTIyMjAyNFowFDESMBAG
A1UEAxMJbG9jYWxob3N0MFkwEwYHKoZIzj0CAQYIKoZIzj0DAQcDQgAEs22MtnG7
9K1mvIyjEO9GLx7BFD0tBbGnwQ0VPsuCxC6IeVuXbQDLSiVQvFZ6lUszTlczNxVk
pEfqrM6xAupB7qN1MHMwHQYDVR0OBBYEFHxYDvAxUwL4XrjPev6qZ/BiLDs5MEQG
A1UdIwQ9MDuAFHxYDvAxUwL4XrjPev6qZ/BiLDs5oRikFjAUMRIwEAYDVQQDEwls
b2NhbGhvc3SCCQDXxQgXAAS+izAMBgNVHRMEBTADAQH/MAkGByqGSM49BAEDSAAw
RQIgRvBqbyJM2JCJqhA1FmcoZjeMocmhxQHTt1c+1N2wFUgCIQDtvrivbBPA688N
Qh3sMeAKNKPsx5NxYdoWuu9KWcKz9A==
-----END CERTIFICATE-----
`)
var testKey = []byte(`-----BEGIN EC PARAMETERS-----
BggqhkjOPQMBBw==
-----END EC PARAMETERS-----
-----BEGIN EC PRIVATE KEY-----
MHcCAQEEIGLtRmwzYVcrH3J0BnzYbGPdWVF10i9p6mxkA4+b2fURoAoGCCqGSM49
AwEHoUQDQgAEs22MtnG79K1mvIyjEO9GLx7BFD0tBbGnwQ0VPsuCxC6IeVuXbQDL
SiVQvFZ6lUszTlczNxVkpEfqrM6xAupB7g==
-----END EC PRIVATE KEY-----
`)