mirror of
https://github.com/genuinetools/reg.git
synced 2024-09-11 13:51:03 -04:00
1131 lines
31 KiB
Go
1131 lines
31 KiB
Go
![]() |
// Copyright 2016 The Go Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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package autocert
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import (
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"bytes"
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"context"
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"crypto"
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"crypto/ecdsa"
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"crypto/elliptic"
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"crypto/rand"
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"crypto/rsa"
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"crypto/tls"
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"crypto/x509"
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"crypto/x509/pkix"
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"encoding/asn1"
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"encoding/base64"
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"encoding/json"
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"fmt"
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"html/template"
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"io"
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"math/big"
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"net/http"
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"net/http/httptest"
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"reflect"
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"strings"
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"sync"
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"testing"
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"time"
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"golang.org/x/crypto/acme"
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)
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var (
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exampleDomain = "example.org"
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exampleCertKey = certKey{domain: exampleDomain}
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exampleCertKeyRSA = certKey{domain: exampleDomain, isRSA: true}
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)
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var discoTmpl = template.Must(template.New("disco").Parse(`{
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"new-reg": "{{.}}/new-reg",
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"new-authz": "{{.}}/new-authz",
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"new-cert": "{{.}}/new-cert"
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}`))
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var authzTmpl = template.Must(template.New("authz").Parse(`{
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"status": "pending",
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"challenges": [
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{
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"uri": "{{.}}/challenge/1",
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"type": "tls-sni-01",
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"token": "token-01"
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},
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{
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"uri": "{{.}}/challenge/2",
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"type": "tls-sni-02",
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"token": "token-02"
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},
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{
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"uri": "{{.}}/challenge/dns-01",
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"type": "dns-01",
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"token": "token-dns-01"
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},
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{
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"uri": "{{.}}/challenge/http-01",
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"type": "http-01",
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"token": "token-http-01"
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}
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]
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}`))
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type memCache struct {
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t *testing.T
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mu sync.Mutex
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keyData map[string][]byte
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}
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func (m *memCache) Get(ctx context.Context, key string) ([]byte, error) {
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m.mu.Lock()
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defer m.mu.Unlock()
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v, ok := m.keyData[key]
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if !ok {
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return nil, ErrCacheMiss
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}
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return v, nil
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}
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// filenameSafe returns whether all characters in s are printable ASCII
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// and safe to use in a filename on most filesystems.
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func filenameSafe(s string) bool {
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for _, c := range s {
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if c < 0x20 || c > 0x7E {
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return false
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}
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switch c {
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case '\\', '/', ':', '*', '?', '"', '<', '>', '|':
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return false
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}
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}
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return true
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}
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func (m *memCache) Put(ctx context.Context, key string, data []byte) error {
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if !filenameSafe(key) {
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m.t.Errorf("invalid characters in cache key %q", key)
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}
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m.mu.Lock()
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defer m.mu.Unlock()
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m.keyData[key] = data
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return nil
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}
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func (m *memCache) Delete(ctx context.Context, key string) error {
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m.mu.Lock()
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defer m.mu.Unlock()
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delete(m.keyData, key)
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return nil
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}
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func newMemCache(t *testing.T) *memCache {
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return &memCache{
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t: t,
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keyData: make(map[string][]byte),
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}
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}
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func (m *memCache) numCerts() int {
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m.mu.Lock()
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defer m.mu.Unlock()
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res := 0
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for key := range m.keyData {
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if strings.HasSuffix(key, "+token") ||
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strings.HasSuffix(key, "+key") ||
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strings.HasSuffix(key, "+http-01") {
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continue
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}
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res++
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}
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return res
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}
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func dummyCert(pub interface{}, san ...string) ([]byte, error) {
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return dateDummyCert(pub, time.Now(), time.Now().Add(90*24*time.Hour), san...)
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}
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func dateDummyCert(pub interface{}, start, end time.Time, san ...string) ([]byte, error) {
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// use EC key to run faster on 386
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key, err := ecdsa.GenerateKey(elliptic.P256(), rand.Reader)
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if err != nil {
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return nil, err
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}
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t := &x509.Certificate{
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SerialNumber: big.NewInt(1),
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NotBefore: start,
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NotAfter: end,
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BasicConstraintsValid: true,
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KeyUsage: x509.KeyUsageKeyEncipherment,
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DNSNames: san,
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}
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if pub == nil {
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pub = &key.PublicKey
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}
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return x509.CreateCertificate(rand.Reader, t, t, pub, key)
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}
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func decodePayload(v interface{}, r io.Reader) error {
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var req struct{ Payload string }
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if err := json.NewDecoder(r).Decode(&req); err != nil {
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return err
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}
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payload, err := base64.RawURLEncoding.DecodeString(req.Payload)
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if err != nil {
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return err
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}
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return json.Unmarshal(payload, v)
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}
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func clientHelloInfo(sni string, ecdsaSupport bool) *tls.ClientHelloInfo {
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hello := &tls.ClientHelloInfo{
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ServerName: sni,
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CipherSuites: []uint16{tls.TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305},
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}
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if ecdsaSupport {
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hello.CipherSuites = append(hello.CipherSuites, tls.TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305)
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}
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return hello
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}
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func TestGetCertificate(t *testing.T) {
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man := &Manager{Prompt: AcceptTOS}
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defer man.stopRenew()
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hello := clientHelloInfo("example.org", true)
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testGetCertificate(t, man, "example.org", hello)
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}
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func TestGetCertificate_trailingDot(t *testing.T) {
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man := &Manager{Prompt: AcceptTOS}
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defer man.stopRenew()
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hello := clientHelloInfo("example.org.", true)
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testGetCertificate(t, man, "example.org", hello)
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}
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func TestGetCertificate_ForceRSA(t *testing.T) {
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man := &Manager{
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Prompt: AcceptTOS,
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Cache: newMemCache(t),
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ForceRSA: true,
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}
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defer man.stopRenew()
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hello := clientHelloInfo(exampleDomain, true)
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testGetCertificate(t, man, exampleDomain, hello)
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// ForceRSA was deprecated and is now ignored.
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cert, err := man.cacheGet(context.Background(), exampleCertKey)
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if err != nil {
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t.Fatalf("man.cacheGet: %v", err)
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}
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if _, ok := cert.PrivateKey.(*ecdsa.PrivateKey); !ok {
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t.Errorf("cert.PrivateKey is %T; want *ecdsa.PrivateKey", cert.PrivateKey)
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}
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}
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func TestGetCertificate_nilPrompt(t *testing.T) {
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man := &Manager{}
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defer man.stopRenew()
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url, finish := startACMEServerStub(t, getCertificateFromManager(man, true), "example.org")
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defer finish()
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man.Client = &acme.Client{DirectoryURL: url}
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hello := clientHelloInfo("example.org", true)
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if _, err := man.GetCertificate(hello); err == nil {
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t.Error("got certificate for example.org; wanted error")
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}
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}
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func TestGetCertificate_expiredCache(t *testing.T) {
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// Make an expired cert and cache it.
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pk, err := ecdsa.GenerateKey(elliptic.P256(), rand.Reader)
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if err != nil {
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t.Fatal(err)
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}
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tmpl := &x509.Certificate{
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SerialNumber: big.NewInt(1),
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Subject: pkix.Name{CommonName: exampleDomain},
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NotAfter: time.Now(),
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}
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pub, err := x509.CreateCertificate(rand.Reader, tmpl, tmpl, &pk.PublicKey, pk)
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if err != nil {
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t.Fatal(err)
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}
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tlscert := &tls.Certificate{
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Certificate: [][]byte{pub},
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PrivateKey: pk,
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}
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man := &Manager{Prompt: AcceptTOS, Cache: newMemCache(t)}
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defer man.stopRenew()
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if err := man.cachePut(context.Background(), exampleCertKey, tlscert); err != nil {
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t.Fatalf("man.cachePut: %v", err)
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}
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// The expired cached cert should trigger a new cert issuance
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// and return without an error.
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hello := clientHelloInfo(exampleDomain, true)
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testGetCertificate(t, man, exampleDomain, hello)
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}
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func TestGetCertificate_failedAttempt(t *testing.T) {
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ts := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
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w.WriteHeader(http.StatusBadRequest)
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}))
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defer ts.Close()
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d := createCertRetryAfter
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f := testDidRemoveState
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defer func() {
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createCertRetryAfter = d
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testDidRemoveState = f
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}()
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createCertRetryAfter = 0
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done := make(chan struct{})
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testDidRemoveState = func(ck certKey) {
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if ck != exampleCertKey {
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t.Errorf("testDidRemoveState: domain = %v; want %v", ck, exampleCertKey)
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}
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close(done)
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}
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man := &Manager{
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Prompt: AcceptTOS,
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Client: &acme.Client{
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DirectoryURL: ts.URL,
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},
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}
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defer man.stopRenew()
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hello := clientHelloInfo(exampleDomain, true)
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if _, err := man.GetCertificate(hello); err == nil {
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t.Error("GetCertificate: err is nil")
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}
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select {
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case <-time.After(5 * time.Second):
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t.Errorf("took too long to remove the %q state", exampleCertKey)
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case <-done:
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man.stateMu.Lock()
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defer man.stateMu.Unlock()
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if v, exist := man.state[exampleCertKey]; exist {
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t.Errorf("state exists for %v: %+v", exampleCertKey, v)
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}
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}
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}
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// testGetCertificate_tokenCache tests the fallback of token certificate fetches
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// to cache when Manager.certTokens misses. ecdsaSupport refers to the CA when
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// verifying the certificate token.
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func testGetCertificate_tokenCache(t *testing.T, ecdsaSupport bool) {
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man1 := &Manager{
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Cache: newMemCache(t),
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Prompt: AcceptTOS,
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}
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defer man1.stopRenew()
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man2 := &Manager{
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Cache: man1.Cache,
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Prompt: AcceptTOS,
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}
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defer man2.stopRenew()
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// Send the verification request to a different Manager from the one that
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// initiated the authorization, when they share caches.
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url, finish := startACMEServerStub(t, getCertificateFromManager(man2, ecdsaSupport), "example.org")
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defer finish()
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man1.Client = &acme.Client{DirectoryURL: url}
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hello := clientHelloInfo("example.org", true)
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if _, err := man1.GetCertificate(hello); err != nil {
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t.Error(err)
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}
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if _, err := man2.GetCertificate(hello); err != nil {
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t.Error(err)
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}
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}
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func TestGetCertificate_tokenCache(t *testing.T) {
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t.Run("ecdsaSupport=true", func(t *testing.T) {
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testGetCertificate_tokenCache(t, true)
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})
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t.Run("ecdsaSupport=false", func(t *testing.T) {
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testGetCertificate_tokenCache(t, false)
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})
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}
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func TestGetCertificate_ecdsaVsRSA(t *testing.T) {
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cache := newMemCache(t)
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man := &Manager{Prompt: AcceptTOS, Cache: cache}
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defer man.stopRenew()
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url, finish := startACMEServerStub(t, getCertificateFromManager(man, true), "example.org")
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defer finish()
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man.Client = &acme.Client{DirectoryURL: url}
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cert, err := man.GetCertificate(clientHelloInfo("example.org", true))
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if err != nil {
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t.Error(err)
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}
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if _, ok := cert.Leaf.PublicKey.(*ecdsa.PublicKey); !ok {
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t.Error("an ECDSA client was served a non-ECDSA certificate")
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}
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cert, err = man.GetCertificate(clientHelloInfo("example.org", false))
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if err != nil {
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t.Error(err)
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}
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if _, ok := cert.Leaf.PublicKey.(*rsa.PublicKey); !ok {
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t.Error("a RSA client was served a non-RSA certificate")
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}
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if _, err := man.GetCertificate(clientHelloInfo("example.org", true)); err != nil {
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t.Error(err)
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}
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if _, err := man.GetCertificate(clientHelloInfo("example.org", false)); err != nil {
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t.Error(err)
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}
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if numCerts := cache.numCerts(); numCerts != 2 {
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t.Errorf("found %d certificates in cache; want %d", numCerts, 2)
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}
|
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}
|
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|
|
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func TestGetCertificate_wrongCacheKeyType(t *testing.T) {
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cache := newMemCache(t)
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man := &Manager{Prompt: AcceptTOS, Cache: cache}
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defer man.stopRenew()
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url, finish := startACMEServerStub(t, getCertificateFromManager(man, true), exampleDomain)
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defer finish()
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man.Client = &acme.Client{DirectoryURL: url}
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|
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// Make an RSA cert and cache it without suffix.
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pk, err := rsa.GenerateKey(rand.Reader, 512)
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if err != nil {
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t.Fatal(err)
|
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|
}
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tmpl := &x509.Certificate{
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SerialNumber: big.NewInt(1),
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Subject: pkix.Name{CommonName: exampleDomain},
|
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NotAfter: time.Now().Add(90 * 24 * time.Hour),
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}
|
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pub, err := x509.CreateCertificate(rand.Reader, tmpl, tmpl, &pk.PublicKey, pk)
|
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|
if err != nil {
|
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t.Fatal(err)
|
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}
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rsaCert := &tls.Certificate{
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Certificate: [][]byte{pub},
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PrivateKey: pk,
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}
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if err := man.cachePut(context.Background(), exampleCertKey, rsaCert); err != nil {
|
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t.Fatalf("man.cachePut: %v", err)
|
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|
}
|
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|
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// The RSA cached cert should be silently ignored and replaced.
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|
cert, err := man.GetCertificate(clientHelloInfo(exampleDomain, true))
|
||
|
if err != nil {
|
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|
t.Error(err)
|
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|
}
|
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|
if _, ok := cert.Leaf.PublicKey.(*ecdsa.PublicKey); !ok {
|
||
|
t.Error("an ECDSA client was served a non-ECDSA certificate")
|
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|
}
|
||
|
if numCerts := cache.numCerts(); numCerts != 1 {
|
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|
t.Errorf("found %d certificates in cache; want %d", numCerts, 1)
|
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|
}
|
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|
}
|
||
|
|
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|
func getCertificateFromManager(man *Manager, ecdsaSupport bool) func(string) error {
|
||
|
return func(sni string) error {
|
||
|
_, err := man.GetCertificate(clientHelloInfo(sni, ecdsaSupport))
|
||
|
return err
|
||
|
}
|
||
|
}
|
||
|
|
||
|
// startACMEServerStub runs an ACME server
|
||
|
// The domain argument is the expected domain name of a certificate request.
|
||
|
func startACMEServerStub(t *testing.T, getCertificate func(string) error, domain string) (url string, finish func()) {
|
||
|
// echo token-02 | shasum -a 256
|
||
|
// then divide result in 2 parts separated by dot
|
||
|
tokenCertName := "4e8eb87631187e9ff2153b56b13a4dec.13a35d002e485d60ff37354b32f665d9.token.acme.invalid"
|
||
|
verifyTokenCert := func() {
|
||
|
if err := getCertificate(tokenCertName); err != nil {
|
||
|
t.Errorf("verifyTokenCert: GetCertificate(%q): %v", tokenCertName, err)
|
||
|
return
|
||
|
}
|
||
|
}
|
||
|
|
||
|
// ACME CA server stub
|
||
|
var ca *httptest.Server
|
||
|
ca = httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
|
||
|
w.Header().Set("Replay-Nonce", "nonce")
|
||
|
if r.Method == "HEAD" {
|
||
|
// a nonce request
|
||
|
return
|
||
|
}
|
||
|
|
||
|
switch r.URL.Path {
|
||
|
// discovery
|
||
|
case "/":
|
||
|
if err := discoTmpl.Execute(w, ca.URL); err != nil {
|
||
|
t.Errorf("discoTmpl: %v", err)
|
||
|
}
|
||
|
// client key registration
|
||
|
case "/new-reg":
|
||
|
w.Write([]byte("{}"))
|
||
|
// domain authorization
|
||
|
case "/new-authz":
|
||
|
w.Header().Set("Location", ca.URL+"/authz/1")
|
||
|
w.WriteHeader(http.StatusCreated)
|
||
|
if err := authzTmpl.Execute(w, ca.URL); err != nil {
|
||
|
t.Errorf("authzTmpl: %v", err)
|
||
|
}
|
||
|
// accept tls-sni-02 challenge
|
||
|
case "/challenge/2":
|
||
|
verifyTokenCert()
|
||
|
w.Write([]byte("{}"))
|
||
|
// authorization status
|
||
|
case "/authz/1":
|
||
|
w.Write([]byte(`{"status": "valid"}`))
|
||
|
// cert request
|
||
|
case "/new-cert":
|
||
|
var req struct {
|
||
|
CSR string `json:"csr"`
|
||
|
}
|
||
|
decodePayload(&req, r.Body)
|
||
|
b, _ := base64.RawURLEncoding.DecodeString(req.CSR)
|
||
|
csr, err := x509.ParseCertificateRequest(b)
|
||
|
if err != nil {
|
||
|
t.Errorf("new-cert: CSR: %v", err)
|
||
|
}
|
||
|
if csr.Subject.CommonName != domain {
|
||
|
t.Errorf("CommonName in CSR = %q; want %q", csr.Subject.CommonName, domain)
|
||
|
}
|
||
|
der, err := dummyCert(csr.PublicKey, domain)
|
||
|
if err != nil {
|
||
|
t.Errorf("new-cert: dummyCert: %v", err)
|
||
|
}
|
||
|
chainUp := fmt.Sprintf("<%s/ca-cert>; rel=up", ca.URL)
|
||
|
w.Header().Set("Link", chainUp)
|
||
|
w.WriteHeader(http.StatusCreated)
|
||
|
w.Write(der)
|
||
|
// CA chain cert
|
||
|
case "/ca-cert":
|
||
|
der, err := dummyCert(nil, "ca")
|
||
|
if err != nil {
|
||
|
t.Errorf("ca-cert: dummyCert: %v", err)
|
||
|
}
|
||
|
w.Write(der)
|
||
|
default:
|
||
|
t.Errorf("unrecognized r.URL.Path: %s", r.URL.Path)
|
||
|
}
|
||
|
}))
|
||
|
finish = func() {
|
||
|
ca.Close()
|
||
|
|
||
|
// make sure token cert was removed
|
||
|
cancel := make(chan struct{})
|
||
|
done := make(chan struct{})
|
||
|
go func() {
|
||
|
defer close(done)
|
||
|
tick := time.NewTicker(100 * time.Millisecond)
|
||
|
defer tick.Stop()
|
||
|
for {
|
||
|
if err := getCertificate(tokenCertName); err != nil {
|
||
|
return
|
||
|
}
|
||
|
select {
|
||
|
case <-tick.C:
|
||
|
case <-cancel:
|
||
|
return
|
||
|
}
|
||
|
}
|
||
|
}()
|
||
|
select {
|
||
|
case <-done:
|
||
|
case <-time.After(5 * time.Second):
|
||
|
close(cancel)
|
||
|
t.Error("token cert was not removed")
|
||
|
<-done
|
||
|
}
|
||
|
}
|
||
|
return ca.URL, finish
|
||
|
}
|
||
|
|
||
|
// tests man.GetCertificate flow using the provided hello argument.
|
||
|
// The domain argument is the expected domain name of a certificate request.
|
||
|
func testGetCertificate(t *testing.T, man *Manager, domain string, hello *tls.ClientHelloInfo) {
|
||
|
url, finish := startACMEServerStub(t, getCertificateFromManager(man, true), domain)
|
||
|
defer finish()
|
||
|
man.Client = &acme.Client{DirectoryURL: url}
|
||
|
|
||
|
// simulate tls.Config.GetCertificate
|
||
|
var tlscert *tls.Certificate
|
||
|
var err error
|
||
|
done := make(chan struct{})
|
||
|
go func() {
|
||
|
tlscert, err = man.GetCertificate(hello)
|
||
|
close(done)
|
||
|
}()
|
||
|
select {
|
||
|
case <-time.After(time.Minute):
|
||
|
t.Fatal("man.GetCertificate took too long to return")
|
||
|
case <-done:
|
||
|
}
|
||
|
if err != nil {
|
||
|
t.Fatalf("man.GetCertificate: %v", err)
|
||
|
}
|
||
|
|
||
|
// verify the tlscert is the same we responded with from the CA stub
|
||
|
if len(tlscert.Certificate) == 0 {
|
||
|
t.Fatal("len(tlscert.Certificate) is 0")
|
||
|
}
|
||
|
cert, err := x509.ParseCertificate(tlscert.Certificate[0])
|
||
|
if err != nil {
|
||
|
t.Fatalf("x509.ParseCertificate: %v", err)
|
||
|
}
|
||
|
if len(cert.DNSNames) == 0 || cert.DNSNames[0] != domain {
|
||
|
t.Errorf("cert.DNSNames = %v; want %q", cert.DNSNames, domain)
|
||
|
}
|
||
|
|
||
|
}
|
||
|
|
||
|
func TestVerifyHTTP01(t *testing.T) {
|
||
|
var (
|
||
|
http01 http.Handler
|
||
|
|
||
|
authzCount int // num. of created authorizations
|
||
|
didAcceptHTTP01 bool
|
||
|
)
|
||
|
|
||
|
verifyHTTPToken := func() {
|
||
|
r := httptest.NewRequest("GET", "/.well-known/acme-challenge/token-http-01", nil)
|
||
|
w := httptest.NewRecorder()
|
||
|
http01.ServeHTTP(w, r)
|
||
|
if w.Code != http.StatusOK {
|
||
|
t.Errorf("http token: w.Code = %d; want %d", w.Code, http.StatusOK)
|
||
|
}
|
||
|
if v := w.Body.String(); !strings.HasPrefix(v, "token-http-01.") {
|
||
|
t.Errorf("http token value = %q; want 'token-http-01.' prefix", v)
|
||
|
}
|
||
|
}
|
||
|
|
||
|
// ACME CA server stub, only the needed bits.
|
||
|
// TODO: Merge this with startACMEServerStub, making it a configurable CA for testing.
|
||
|
var ca *httptest.Server
|
||
|
ca = httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
|
||
|
w.Header().Set("Replay-Nonce", "nonce")
|
||
|
if r.Method == "HEAD" {
|
||
|
// a nonce request
|
||
|
return
|
||
|
}
|
||
|
|
||
|
switch r.URL.Path {
|
||
|
// Discovery.
|
||
|
case "/":
|
||
|
if err := discoTmpl.Execute(w, ca.URL); err != nil {
|
||
|
t.Errorf("discoTmpl: %v", err)
|
||
|
}
|
||
|
// Client key registration.
|
||
|
case "/new-reg":
|
||
|
w.Write([]byte("{}"))
|
||
|
// New domain authorization.
|
||
|
case "/new-authz":
|
||
|
authzCount++
|
||
|
w.Header().Set("Location", fmt.Sprintf("%s/authz/%d", ca.URL, authzCount))
|
||
|
w.WriteHeader(http.StatusCreated)
|
||
|
if err := authzTmpl.Execute(w, ca.URL); err != nil {
|
||
|
t.Errorf("authzTmpl: %v", err)
|
||
|
}
|
||
|
// Accept tls-sni-02.
|
||
|
case "/challenge/2":
|
||
|
w.Write([]byte("{}"))
|
||
|
// Reject tls-sni-01.
|
||
|
case "/challenge/1":
|
||
|
http.Error(w, "won't accept tls-sni-01", http.StatusBadRequest)
|
||
|
// Should not accept dns-01.
|
||
|
case "/challenge/dns-01":
|
||
|
t.Errorf("dns-01 challenge was accepted")
|
||
|
http.Error(w, "won't accept dns-01", http.StatusBadRequest)
|
||
|
// Accept http-01.
|
||
|
case "/challenge/http-01":
|
||
|
didAcceptHTTP01 = true
|
||
|
verifyHTTPToken()
|
||
|
w.Write([]byte("{}"))
|
||
|
// Authorization statuses.
|
||
|
// Make tls-sni-xxx invalid.
|
||
|
case "/authz/1", "/authz/2":
|
||
|
w.Write([]byte(`{"status": "invalid"}`))
|
||
|
case "/authz/3", "/authz/4":
|
||
|
w.Write([]byte(`{"status": "valid"}`))
|
||
|
default:
|
||
|
http.NotFound(w, r)
|
||
|
t.Errorf("unrecognized r.URL.Path: %s", r.URL.Path)
|
||
|
}
|
||
|
}))
|
||
|
defer ca.Close()
|
||
|
|
||
|
m := &Manager{
|
||
|
Client: &acme.Client{
|
||
|
DirectoryURL: ca.URL,
|
||
|
},
|
||
|
}
|
||
|
http01 = m.HTTPHandler(nil)
|
||
|
ctx := context.Background()
|
||
|
client, err := m.acmeClient(ctx)
|
||
|
if err != nil {
|
||
|
t.Fatalf("m.acmeClient: %v", err)
|
||
|
}
|
||
|
if err := m.verify(ctx, client, "example.org"); err != nil {
|
||
|
t.Errorf("m.verify: %v", err)
|
||
|
}
|
||
|
// Only tls-sni-01, tls-sni-02 and http-01 must be accepted
|
||
|
// The dns-01 challenge is unsupported.
|
||
|
if authzCount != 3 {
|
||
|
t.Errorf("authzCount = %d; want 3", authzCount)
|
||
|
}
|
||
|
if !didAcceptHTTP01 {
|
||
|
t.Error("did not accept http-01 challenge")
|
||
|
}
|
||
|
}
|
||
|
|
||
|
func TestRevokeFailedAuthz(t *testing.T) {
|
||
|
// Prefill authorization URIs expected to be revoked.
|
||
|
// The challenges are selected in a specific order,
|
||
|
// each tried within a newly created authorization.
|
||
|
// This means each authorization URI corresponds to a different challenge type.
|
||
|
revokedAuthz := map[string]bool{
|
||
|
"/authz/0": false, // tls-sni-02
|
||
|
"/authz/1": false, // tls-sni-01
|
||
|
"/authz/2": false, // no viable challenge, but authz is created
|
||
|
}
|
||
|
|
||
|
var authzCount int // num. of created authorizations
|
||
|
var revokeCount int // num. of revoked authorizations
|
||
|
done := make(chan struct{}) // closed when revokeCount is 3
|
||
|
|
||
|
// ACME CA server stub, only the needed bits.
|
||
|
// TODO: Merge this with startACMEServerStub, making it a configurable CA for testing.
|
||
|
var ca *httptest.Server
|
||
|
ca = httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
|
||
|
w.Header().Set("Replay-Nonce", "nonce")
|
||
|
if r.Method == "HEAD" {
|
||
|
// a nonce request
|
||
|
return
|
||
|
}
|
||
|
|
||
|
switch r.URL.Path {
|
||
|
// Discovery.
|
||
|
case "/":
|
||
|
if err := discoTmpl.Execute(w, ca.URL); err != nil {
|
||
|
t.Errorf("discoTmpl: %v", err)
|
||
|
}
|
||
|
// Client key registration.
|
||
|
case "/new-reg":
|
||
|
w.Write([]byte("{}"))
|
||
|
// New domain authorization.
|
||
|
case "/new-authz":
|
||
|
w.Header().Set("Location", fmt.Sprintf("%s/authz/%d", ca.URL, authzCount))
|
||
|
w.WriteHeader(http.StatusCreated)
|
||
|
if err := authzTmpl.Execute(w, ca.URL); err != nil {
|
||
|
t.Errorf("authzTmpl: %v", err)
|
||
|
}
|
||
|
authzCount++
|
||
|
// tls-sni-02 challenge "accept" request.
|
||
|
case "/challenge/2":
|
||
|
// Refuse.
|
||
|
http.Error(w, "won't accept tls-sni-02 challenge", http.StatusBadRequest)
|
||
|
// tls-sni-01 challenge "accept" request.
|
||
|
case "/challenge/1":
|
||
|
// Accept but the authorization will be "expired".
|
||
|
w.Write([]byte("{}"))
|
||
|
// Authorization requests.
|
||
|
case "/authz/0", "/authz/1", "/authz/2":
|
||
|
// Revocation requests.
|
||
|
if r.Method == "POST" {
|
||
|
var req struct{ Status string }
|
||
|
if err := decodePayload(&req, r.Body); err != nil {
|
||
|
t.Errorf("%s: decodePayload: %v", r.URL, err)
|
||
|
}
|
||
|
switch req.Status {
|
||
|
case "deactivated":
|
||
|
revokedAuthz[r.URL.Path] = true
|
||
|
revokeCount++
|
||
|
if revokeCount >= 3 {
|
||
|
// Last authorization is revoked.
|
||
|
defer close(done)
|
||
|
}
|
||
|
default:
|
||
|
t.Errorf("%s: req.Status = %q; want 'deactivated'", r.URL, req.Status)
|
||
|
}
|
||
|
w.Write([]byte(`{"status": "invalid"}`))
|
||
|
return
|
||
|
}
|
||
|
// Authorization status requests.
|
||
|
// Simulate abandoned authorization, deleted by the CA.
|
||
|
w.WriteHeader(http.StatusNotFound)
|
||
|
default:
|
||
|
http.NotFound(w, r)
|
||
|
t.Errorf("unrecognized r.URL.Path: %s", r.URL.Path)
|
||
|
}
|
||
|
}))
|
||
|
defer ca.Close()
|
||
|
|
||
|
m := &Manager{
|
||
|
Client: &acme.Client{DirectoryURL: ca.URL},
|
||
|
}
|
||
|
// Should fail and revoke 3 authorizations.
|
||
|
// The first 2 are tsl-sni-02 and tls-sni-01 challenges.
|
||
|
// The third time an authorization is created but no viable challenge is found.
|
||
|
// See revokedAuthz above for more explanation.
|
||
|
if _, err := m.createCert(context.Background(), exampleCertKey); err == nil {
|
||
|
t.Errorf("m.createCert returned nil error")
|
||
|
}
|
||
|
select {
|
||
|
case <-time.After(3 * time.Second):
|
||
|
t.Error("revocations took too long")
|
||
|
case <-done:
|
||
|
// revokeCount is at least 3.
|
||
|
}
|
||
|
for uri, ok := range revokedAuthz {
|
||
|
if !ok {
|
||
|
t.Errorf("%q authorization was not revoked", uri)
|
||
|
}
|
||
|
}
|
||
|
}
|
||
|
|
||
|
func TestHTTPHandlerDefaultFallback(t *testing.T) {
|
||
|
tt := []struct {
|
||
|
method, url string
|
||
|
wantCode int
|
||
|
wantLocation string
|
||
|
}{
|
||
|
{"GET", "http://example.org", 302, "https://example.org/"},
|
||
|
{"GET", "http://example.org/foo", 302, "https://example.org/foo"},
|
||
|
{"GET", "http://example.org/foo/bar/", 302, "https://example.org/foo/bar/"},
|
||
|
{"GET", "http://example.org/?a=b", 302, "https://example.org/?a=b"},
|
||
|
{"GET", "http://example.org/foo?a=b", 302, "https://example.org/foo?a=b"},
|
||
|
{"GET", "http://example.org:80/foo?a=b", 302, "https://example.org:443/foo?a=b"},
|
||
|
{"GET", "http://example.org:80/foo%20bar", 302, "https://example.org:443/foo%20bar"},
|
||
|
{"GET", "http://[2602:d1:xxxx::c60a]:1234", 302, "https://[2602:d1:xxxx::c60a]:443/"},
|
||
|
{"GET", "http://[2602:d1:xxxx::c60a]", 302, "https://[2602:d1:xxxx::c60a]/"},
|
||
|
{"GET", "http://[2602:d1:xxxx::c60a]/foo?a=b", 302, "https://[2602:d1:xxxx::c60a]/foo?a=b"},
|
||
|
{"HEAD", "http://example.org", 302, "https://example.org/"},
|
||
|
{"HEAD", "http://example.org/foo", 302, "https://example.org/foo"},
|
||
|
{"HEAD", "http://example.org/foo/bar/", 302, "https://example.org/foo/bar/"},
|
||
|
{"HEAD", "http://example.org/?a=b", 302, "https://example.org/?a=b"},
|
||
|
{"HEAD", "http://example.org/foo?a=b", 302, "https://example.org/foo?a=b"},
|
||
|
{"POST", "http://example.org", 400, ""},
|
||
|
{"PUT", "http://example.org", 400, ""},
|
||
|
{"GET", "http://example.org/.well-known/acme-challenge/x", 404, ""},
|
||
|
}
|
||
|
var m Manager
|
||
|
h := m.HTTPHandler(nil)
|
||
|
for i, test := range tt {
|
||
|
r := httptest.NewRequest(test.method, test.url, nil)
|
||
|
w := httptest.NewRecorder()
|
||
|
h.ServeHTTP(w, r)
|
||
|
if w.Code != test.wantCode {
|
||
|
t.Errorf("%d: w.Code = %d; want %d", i, w.Code, test.wantCode)
|
||
|
t.Errorf("%d: body: %s", i, w.Body.Bytes())
|
||
|
}
|
||
|
if v := w.Header().Get("Location"); v != test.wantLocation {
|
||
|
t.Errorf("%d: Location = %q; want %q", i, v, test.wantLocation)
|
||
|
}
|
||
|
}
|
||
|
}
|
||
|
|
||
|
func TestAccountKeyCache(t *testing.T) {
|
||
|
m := Manager{Cache: newMemCache(t)}
|
||
|
ctx := context.Background()
|
||
|
k1, err := m.accountKey(ctx)
|
||
|
if err != nil {
|
||
|
t.Fatal(err)
|
||
|
}
|
||
|
k2, err := m.accountKey(ctx)
|
||
|
if err != nil {
|
||
|
t.Fatal(err)
|
||
|
}
|
||
|
if !reflect.DeepEqual(k1, k2) {
|
||
|
t.Errorf("account keys don't match: k1 = %#v; k2 = %#v", k1, k2)
|
||
|
}
|
||
|
}
|
||
|
|
||
|
func TestCache(t *testing.T) {
|
||
|
ecdsaKey, err := ecdsa.GenerateKey(elliptic.P256(), rand.Reader)
|
||
|
if err != nil {
|
||
|
t.Fatal(err)
|
||
|
}
|
||
|
cert, err := dummyCert(ecdsaKey.Public(), exampleDomain)
|
||
|
if err != nil {
|
||
|
t.Fatal(err)
|
||
|
}
|
||
|
ecdsaCert := &tls.Certificate{
|
||
|
Certificate: [][]byte{cert},
|
||
|
PrivateKey: ecdsaKey,
|
||
|
}
|
||
|
|
||
|
rsaKey, err := rsa.GenerateKey(rand.Reader, 512)
|
||
|
if err != nil {
|
||
|
t.Fatal(err)
|
||
|
}
|
||
|
cert, err = dummyCert(rsaKey.Public(), exampleDomain)
|
||
|
if err != nil {
|
||
|
t.Fatal(err)
|
||
|
}
|
||
|
rsaCert := &tls.Certificate{
|
||
|
Certificate: [][]byte{cert},
|
||
|
PrivateKey: rsaKey,
|
||
|
}
|
||
|
|
||
|
man := &Manager{Cache: newMemCache(t)}
|
||
|
defer man.stopRenew()
|
||
|
ctx := context.Background()
|
||
|
|
||
|
if err := man.cachePut(ctx, exampleCertKey, ecdsaCert); err != nil {
|
||
|
t.Fatalf("man.cachePut: %v", err)
|
||
|
}
|
||
|
if err := man.cachePut(ctx, exampleCertKeyRSA, rsaCert); err != nil {
|
||
|
t.Fatalf("man.cachePut: %v", err)
|
||
|
}
|
||
|
|
||
|
res, err := man.cacheGet(ctx, exampleCertKey)
|
||
|
if err != nil {
|
||
|
t.Fatalf("man.cacheGet: %v", err)
|
||
|
}
|
||
|
if res == nil || !bytes.Equal(res.Certificate[0], ecdsaCert.Certificate[0]) {
|
||
|
t.Errorf("man.cacheGet = %+v; want %+v", res, ecdsaCert)
|
||
|
}
|
||
|
|
||
|
res, err = man.cacheGet(ctx, exampleCertKeyRSA)
|
||
|
if err != nil {
|
||
|
t.Fatalf("man.cacheGet: %v", err)
|
||
|
}
|
||
|
if res == nil || !bytes.Equal(res.Certificate[0], rsaCert.Certificate[0]) {
|
||
|
t.Errorf("man.cacheGet = %+v; want %+v", res, rsaCert)
|
||
|
}
|
||
|
}
|
||
|
|
||
|
func TestHostWhitelist(t *testing.T) {
|
||
|
policy := HostWhitelist("example.com", "example.org", "*.example.net")
|
||
|
tt := []struct {
|
||
|
host string
|
||
|
allow bool
|
||
|
}{
|
||
|
{"example.com", true},
|
||
|
{"example.org", true},
|
||
|
{"one.example.com", false},
|
||
|
{"two.example.org", false},
|
||
|
{"three.example.net", false},
|
||
|
{"dummy", false},
|
||
|
}
|
||
|
for i, test := range tt {
|
||
|
err := policy(nil, test.host)
|
||
|
if err != nil && test.allow {
|
||
|
t.Errorf("%d: policy(%q): %v; want nil", i, test.host, err)
|
||
|
}
|
||
|
if err == nil && !test.allow {
|
||
|
t.Errorf("%d: policy(%q): nil; want an error", i, test.host)
|
||
|
}
|
||
|
}
|
||
|
}
|
||
|
|
||
|
func TestValidCert(t *testing.T) {
|
||
|
key1, err := ecdsa.GenerateKey(elliptic.P256(), rand.Reader)
|
||
|
if err != nil {
|
||
|
t.Fatal(err)
|
||
|
}
|
||
|
key2, err := ecdsa.GenerateKey(elliptic.P256(), rand.Reader)
|
||
|
if err != nil {
|
||
|
t.Fatal(err)
|
||
|
}
|
||
|
key3, err := rsa.GenerateKey(rand.Reader, 512)
|
||
|
if err != nil {
|
||
|
t.Fatal(err)
|
||
|
}
|
||
|
cert1, err := dummyCert(key1.Public(), "example.org")
|
||
|
if err != nil {
|
||
|
t.Fatal(err)
|
||
|
}
|
||
|
cert2, err := dummyCert(key2.Public(), "example.org")
|
||
|
if err != nil {
|
||
|
t.Fatal(err)
|
||
|
}
|
||
|
cert3, err := dummyCert(key3.Public(), "example.org")
|
||
|
if err != nil {
|
||
|
t.Fatal(err)
|
||
|
}
|
||
|
now := time.Now()
|
||
|
early, err := dateDummyCert(key1.Public(), now.Add(time.Hour), now.Add(2*time.Hour), "example.org")
|
||
|
if err != nil {
|
||
|
t.Fatal(err)
|
||
|
}
|
||
|
expired, err := dateDummyCert(key1.Public(), now.Add(-2*time.Hour), now.Add(-time.Hour), "example.org")
|
||
|
if err != nil {
|
||
|
t.Fatal(err)
|
||
|
}
|
||
|
|
||
|
tt := []struct {
|
||
|
ck certKey
|
||
|
key crypto.Signer
|
||
|
cert [][]byte
|
||
|
ok bool
|
||
|
}{
|
||
|
{certKey{domain: "example.org"}, key1, [][]byte{cert1}, true},
|
||
|
{certKey{domain: "example.org", isRSA: true}, key3, [][]byte{cert3}, true},
|
||
|
{certKey{domain: "example.org"}, key1, [][]byte{cert1, cert2, cert3}, true},
|
||
|
{certKey{domain: "example.org"}, key1, [][]byte{cert1, {1}}, false},
|
||
|
{certKey{domain: "example.org"}, key1, [][]byte{{1}}, false},
|
||
|
{certKey{domain: "example.org"}, key1, [][]byte{cert2}, false},
|
||
|
{certKey{domain: "example.org"}, key2, [][]byte{cert1}, false},
|
||
|
{certKey{domain: "example.org"}, key1, [][]byte{cert3}, false},
|
||
|
{certKey{domain: "example.org"}, key3, [][]byte{cert1}, false},
|
||
|
{certKey{domain: "example.net"}, key1, [][]byte{cert1}, false},
|
||
|
{certKey{domain: "example.org"}, key1, [][]byte{early}, false},
|
||
|
{certKey{domain: "example.org"}, key1, [][]byte{expired}, false},
|
||
|
{certKey{domain: "example.org", isRSA: true}, key1, [][]byte{cert1}, false},
|
||
|
{certKey{domain: "example.org"}, key3, [][]byte{cert3}, false},
|
||
|
}
|
||
|
for i, test := range tt {
|
||
|
leaf, err := validCert(test.ck, test.cert, test.key)
|
||
|
if err != nil && test.ok {
|
||
|
t.Errorf("%d: err = %v", i, err)
|
||
|
}
|
||
|
if err == nil && !test.ok {
|
||
|
t.Errorf("%d: err is nil", i)
|
||
|
}
|
||
|
if err == nil && test.ok && leaf == nil {
|
||
|
t.Errorf("%d: leaf is nil", i)
|
||
|
}
|
||
|
}
|
||
|
}
|
||
|
|
||
|
type cacheGetFunc func(ctx context.Context, key string) ([]byte, error)
|
||
|
|
||
|
func (f cacheGetFunc) Get(ctx context.Context, key string) ([]byte, error) {
|
||
|
return f(ctx, key)
|
||
|
}
|
||
|
|
||
|
func (f cacheGetFunc) Put(ctx context.Context, key string, data []byte) error {
|
||
|
return fmt.Errorf("unsupported Put of %q = %q", key, data)
|
||
|
}
|
||
|
|
||
|
func (f cacheGetFunc) Delete(ctx context.Context, key string) error {
|
||
|
return fmt.Errorf("unsupported Delete of %q", key)
|
||
|
}
|
||
|
|
||
|
func TestManagerGetCertificateBogusSNI(t *testing.T) {
|
||
|
m := Manager{
|
||
|
Prompt: AcceptTOS,
|
||
|
Cache: cacheGetFunc(func(ctx context.Context, key string) ([]byte, error) {
|
||
|
return nil, fmt.Errorf("cache.Get of %s", key)
|
||
|
}),
|
||
|
}
|
||
|
tests := []struct {
|
||
|
name string
|
||
|
wantErr string
|
||
|
}{
|
||
|
{"foo.com", "cache.Get of foo.com"},
|
||
|
{"foo.com.", "cache.Get of foo.com"},
|
||
|
{`a\b.com`, "acme/autocert: server name contains invalid character"},
|
||
|
{`a/b.com`, "acme/autocert: server name contains invalid character"},
|
||
|
{"", "acme/autocert: missing server name"},
|
||
|
{"foo", "acme/autocert: server name component count invalid"},
|
||
|
{".foo", "acme/autocert: server name component count invalid"},
|
||
|
{"foo.", "acme/autocert: server name component count invalid"},
|
||
|
{"fo.o", "cache.Get of fo.o"},
|
||
|
}
|
||
|
for _, tt := range tests {
|
||
|
_, err := m.GetCertificate(clientHelloInfo(tt.name, true))
|
||
|
got := fmt.Sprint(err)
|
||
|
if got != tt.wantErr {
|
||
|
t.Errorf("GetCertificate(SNI = %q) = %q; want %q", tt.name, got, tt.wantErr)
|
||
|
}
|
||
|
}
|
||
|
}
|
||
|
|
||
|
func TestCertRequest(t *testing.T) {
|
||
|
key, err := ecdsa.GenerateKey(elliptic.P256(), rand.Reader)
|
||
|
if err != nil {
|
||
|
t.Fatal(err)
|
||
|
}
|
||
|
// An extension from RFC7633. Any will do.
|
||
|
ext := pkix.Extension{
|
||
|
Id: asn1.ObjectIdentifier{1, 3, 6, 1, 5, 5, 7, 1},
|
||
|
Value: []byte("dummy"),
|
||
|
}
|
||
|
b, err := certRequest(key, "example.org", []pkix.Extension{ext}, "san.example.org")
|
||
|
if err != nil {
|
||
|
t.Fatalf("certRequest: %v", err)
|
||
|
}
|
||
|
r, err := x509.ParseCertificateRequest(b)
|
||
|
if err != nil {
|
||
|
t.Fatalf("ParseCertificateRequest: %v", err)
|
||
|
}
|
||
|
var found bool
|
||
|
for _, v := range r.Extensions {
|
||
|
if v.Id.Equal(ext.Id) {
|
||
|
found = true
|
||
|
break
|
||
|
}
|
||
|
}
|
||
|
if !found {
|
||
|
t.Errorf("want %v in Extensions: %v", ext, r.Extensions)
|
||
|
}
|
||
|
}
|
||
|
|
||
|
func TestSupportsECDSA(t *testing.T) {
|
||
|
tests := []struct {
|
||
|
CipherSuites []uint16
|
||
|
SignatureSchemes []tls.SignatureScheme
|
||
|
SupportedCurves []tls.CurveID
|
||
|
ecdsaOk bool
|
||
|
}{
|
||
|
{[]uint16{
|
||
|
tls.TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256,
|
||
|
}, nil, nil, false},
|
||
|
{[]uint16{
|
||
|
tls.TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256, tls.TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256,
|
||
|
}, nil, nil, true},
|
||
|
|
||
|
// SignatureSchemes limits, not extends, CipherSuites
|
||
|
{[]uint16{
|
||
|
tls.TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256,
|
||
|
}, []tls.SignatureScheme{
|
||
|
tls.PKCS1WithSHA256, tls.ECDSAWithP256AndSHA256,
|
||
|
}, nil, false},
|
||
|
{[]uint16{
|
||
|
tls.TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256, tls.TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256,
|
||
|
}, []tls.SignatureScheme{
|
||
|
tls.PKCS1WithSHA256,
|
||
|
}, nil, false},
|
||
|
{[]uint16{
|
||
|
tls.TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256, tls.TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256,
|
||
|
}, []tls.SignatureScheme{
|
||
|
tls.PKCS1WithSHA256, tls.ECDSAWithP256AndSHA256,
|
||
|
}, nil, true},
|
||
|
|
||
|
{[]uint16{
|
||
|
tls.TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256, tls.TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256,
|
||
|
}, []tls.SignatureScheme{
|
||
|
tls.PKCS1WithSHA256, tls.ECDSAWithP256AndSHA256,
|
||
|
}, []tls.CurveID{
|
||
|
tls.CurveP521,
|
||
|
}, false},
|
||
|
{[]uint16{
|
||
|
tls.TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256, tls.TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256,
|
||
|
}, []tls.SignatureScheme{
|
||
|
tls.PKCS1WithSHA256, tls.ECDSAWithP256AndSHA256,
|
||
|
}, []tls.CurveID{
|
||
|
tls.CurveP256,
|
||
|
tls.CurveP521,
|
||
|
}, true},
|
||
|
}
|
||
|
for i, tt := range tests {
|
||
|
result := supportsECDSA(&tls.ClientHelloInfo{
|
||
|
CipherSuites: tt.CipherSuites,
|
||
|
SignatureSchemes: tt.SignatureSchemes,
|
||
|
SupportedCurves: tt.SupportedCurves,
|
||
|
})
|
||
|
if result != tt.ecdsaOk {
|
||
|
t.Errorf("%d: supportsECDSA = %v; want %v", i, result, tt.ecdsaOk)
|
||
|
}
|
||
|
}
|
||
|
}
|