baalajimaestro/traefik
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages 1 Wiki Activity Actions

refactor: remove old acme provider.

Browse source
This commit is contained in:
Fernandez Ludovic 2019-01-08 14:11:00 +01:00 committed by Traefiker Bot
parent 5d379dc3e3
commit 0b436563bd
9 changed files with 2 additions and 1387 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

4
integration/acme_test.go
View file

@ -11,9 +11,9 @@ import (
"time" "time"
"github.com/containous/traefik/integration/try" "github.com/containous/traefik/integration/try"
"github.com/containous/traefik/old/provider/acme" "github.com/containous/traefik/provider/acme"
"github.com/containous/traefik/old/types"
"github.com/containous/traefik/testhelpers" "github.com/containous/traefik/testhelpers"
"github.com/containous/traefik/types"
"github.com/go-check/check" "github.com/go-check/check"
"github.com/miekg/dns" "github.com/miekg/dns"
checker "github.com/vdemeester/shakers" checker "github.com/vdemeester/shakers"

83
old/provider/acme/account.go
View file

@ -1,83 +0,0 @@
package acme
import (
"crypto"
"crypto/rand"
"crypto/rsa"
"crypto/x509"
"github.com/containous/traefik/old/log"
"github.com/xenolf/lego/acme"
)
// Account is used to store lets encrypt registration info
type Account struct {
Email string
Registration *acme.RegistrationResource
PrivateKey []byte
KeyType acme.KeyType
}
const (
// RegistrationURLPathV1Regexp is a regexp which match ACME registration URL in the V1 format
RegistrationURLPathV1Regexp = `^.*/acme/reg/\d+$`
)
// NewAccount creates an account
func NewAccount(email string, keyTypeValue string) (*Account, error) {
keyType := GetKeyType(keyTypeValue)
// Create a user. New accounts need an email and private key to start
privateKey, err := rsa.GenerateKey(rand.Reader, 4096)
if err != nil {
return nil, err
}
return &Account{
Email: email,
PrivateKey: x509.MarshalPKCS1PrivateKey(privateKey),
KeyType: keyType,
}, nil
}
// GetEmail returns email
func (a *Account) GetEmail() string {
return a.Email
}
// GetRegistration returns lets encrypt registration resource
func (a *Account) GetRegistration() *acme.RegistrationResource {
return a.Registration
}
// GetPrivateKey returns private key
func (a *Account) GetPrivateKey() crypto.PrivateKey {
if privateKey, err := x509.ParsePKCS1PrivateKey(a.PrivateKey); err == nil {
return privateKey
}
log.Errorf("Cannot unmarshal private key %+v", a.PrivateKey)
return nil
}
// GetKeyType used to determine which algo to used
func GetKeyType(value string) acme.KeyType {
switch value {
case "EC256":
return acme.EC256
case "EC384":
return acme.EC384
case "RSA2048":
return acme.RSA2048
case "RSA4096":
return acme.RSA4096
case "RSA8192":
return acme.RSA8192
case "":
log.Infof("The key type is empty. Use default key type %v.", acme.RSA4096)
return acme.RSA4096
default:
log.Infof("Unable to determine key type value %q. Use default key type %v.", value, acme.RSA4096)
return acme.RSA4096
}
}

86
old/provider/acme/challenge_http.go
View file

@ -1,86 +0,0 @@
package acme
import (
"net"
"net/http"
"time"
"github.com/cenk/backoff"
"github.com/containous/mux"
"github.com/containous/traefik/old/log"
"github.com/containous/traefik/safe"
"github.com/xenolf/lego/acme"
)
var _ acme.ChallengeProviderTimeout = (*challengeHTTP)(nil)
type challengeHTTP struct {
Store Store
}
// Present presents a challenge to obtain new ACME certificate
func (c *challengeHTTP) Present(domain, token, keyAuth string) error {
return c.Store.SetHTTPChallengeToken(token, domain, []byte(keyAuth))
}
// CleanUp cleans the challenges when certificate is obtained
func (c *challengeHTTP) CleanUp(domain, token, keyAuth string) error {
return c.Store.RemoveHTTPChallengeToken(token, domain)
}
// Timeout calculates the maximum of time allowed to resolved an ACME challenge
func (c *challengeHTTP) Timeout() (timeout, interval time.Duration) {
return 60 * time.Second, 5 * time.Second
}
func getTokenValue(token, domain string, store Store) []byte {
log.Debugf("Looking for an existing ACME challenge for token %v...", token)
var result []byte
operation := func() error {
var err error
result, err = store.GetHTTPChallengeToken(token, domain)
return err
}
notify := func(err error, time time.Duration) {
log.Errorf("Error getting challenge for token retrying in %s", time)
}
ebo := backoff.NewExponentialBackOff()
ebo.MaxElapsedTime = 60 * time.Second
err := backoff.RetryNotify(safe.OperationWithRecover(operation), ebo, notify)
if err != nil {
log.Errorf("Error getting challenge for token: %v", err)
return []byte{}
}
return result
}
// AddRoutes add routes on internal router
func (p *Provider) AddRoutes(router *mux.Router) {
router.Methods(http.MethodGet).
Path(acme.HTTP01ChallengePath("{token}")).
Handler(http.HandlerFunc(func(rw http.ResponseWriter, req *http.Request) {
vars := mux.Vars(req)
if token, ok := vars["token"]; ok {
domain, _, err := net.SplitHostPort(req.Host)
if err != nil {
log.Debugf("Unable to split host and port: %v. Fallback to request host.", err)
domain = req.Host
}
tokenValue := getTokenValue(token, domain, p.Store)
if len(tokenValue) > 0 {
rw.WriteHeader(http.StatusOK)
_, err = rw.Write(tokenValue)
if err != nil {
log.Errorf("Unable to write token : %v", err)
}
return
}
}
rw.WriteHeader(http.StatusNotFound)
}))
}

52
old/provider/acme/challenge_tls.go
View file

@ -1,52 +0,0 @@
package acme
import (
"crypto/tls"
"github.com/containous/traefik/old/log"
"github.com/containous/traefik/old/types"
"github.com/xenolf/lego/acme"
)
var _ acme.ChallengeProvider = (*challengeTLSALPN)(nil)
type challengeTLSALPN struct {
Store Store
}
func (c *challengeTLSALPN) Present(domain, token, keyAuth string) error {
log.Debugf("TLS Challenge Present temp certificate for %s", domain)
certPEMBlock, keyPEMBlock, err := acme.TLSALPNChallengeBlocks(domain, keyAuth)
if err != nil {
return err
}
cert := &Certificate{Certificate: certPEMBlock, Key: keyPEMBlock, Domain: types.Domain{Main: "TEMP-" + domain}}
return c.Store.AddTLSChallenge(domain, cert)
}
func (c *challengeTLSALPN) CleanUp(domain, token, keyAuth string) error {
log.Debugf("TLS Challenge CleanUp temp certificate for %s", domain)
return c.Store.RemoveTLSChallenge(domain)
}
// GetTLSALPNCertificate Get the temp certificate for ACME TLS-ALPN-O1 challenge.
func (p *Provider) GetTLSALPNCertificate(domain string) (*tls.Certificate, error) {
cert, err := p.Store.GetTLSChallenge(domain)
if err != nil {
return nil, err
}
if cert == nil {
return nil, nil
}
certificate, err := tls.X509KeyPair(cert.Certificate, cert.Key)
if err != nil {
return nil, err
}
return &certificate, nil
}

251
old/provider/acme/local_store.go
View file

@ -1,251 +0,0 @@
package acme
import (
"encoding/json"
"fmt"
"io/ioutil"
"os"
"regexp"
"sync"
"github.com/containous/traefik/old/log"
"github.com/containous/traefik/safe"
)
var _ Store = (*LocalStore)(nil)
// LocalStore Store implementation for local file
type LocalStore struct {
filename string
storedData *StoredData
SaveDataChan chan *StoredData `json:"-"`
lock sync.RWMutex
}
// NewLocalStore initializes a new LocalStore with a file name
func NewLocalStore(filename string) *LocalStore {
store := &LocalStore{filename: filename, SaveDataChan: make(chan *StoredData)}
store.listenSaveAction()
return store
}
func (s *LocalStore) get() (*StoredData, error) {
if s.storedData == nil {
s.storedData = &StoredData{
HTTPChallenges: make(map[string]map[string][]byte),
TLSChallenges: make(map[string]*Certificate),
}
hasData, err := CheckFile(s.filename)
if err != nil {
return nil, err
}
if hasData {
f, err := os.Open(s.filename)
if err != nil {
return nil, err
}
defer f.Close()
file, err := ioutil.ReadAll(f)
if err != nil {
return nil, err
}
if len(file) > 0 {
if err := json.Unmarshal(file, s.storedData); err != nil {
return nil, err
}
}
// Check if ACME Account is in ACME V1 format
if s.storedData.Account != nil && s.storedData.Account.Registration != nil {
isOldRegistration, err := regexp.MatchString(RegistrationURLPathV1Regexp, s.storedData.Account.Registration.URI)
if err != nil {
return nil, err
}
if isOldRegistration {
log.Debug("Reset ACME account.")
s.storedData.Account = nil
s.SaveDataChan <- s.storedData
}
}
// Delete all certificates with no value
var certificates []*Certificate
for _, certificate := range s.storedData.Certificates {
if len(certificate.Certificate) == 0 || len(certificate.Key) == 0 {
log.Debugf("Delete certificate %v for domains %v which have no value.", certificate, certificate.Domain.ToStrArray())
continue
}
certificates = append(certificates, certificate)
}
if len(certificates) < len(s.storedData.Certificates) {
s.storedData.Certificates = certificates
s.SaveDataChan <- s.storedData
}
}
}
return s.storedData, nil
}
// listenSaveAction listens to a chan to store ACME data in json format into LocalStore.filename
func (s *LocalStore) listenSaveAction() {
safe.Go(func() {
for object := range s.SaveDataChan {
data, err := json.MarshalIndent(object, "", " ")
if err != nil {
log.Error(err)
}
err = ioutil.WriteFile(s.filename, data, 0600)
if err != nil {
log.Error(err)
}
}
})
}
// GetAccount returns ACME Account
func (s *LocalStore) GetAccount() (*Account, error) {
storedData, err := s.get()
if err != nil {
return nil, err
}
return storedData.Account, nil
}
// SaveAccount stores ACME Account
func (s *LocalStore) SaveAccount(account *Account) error {
storedData, err := s.get()
if err != nil {
return err
}
storedData.Account = account
s.SaveDataChan <- storedData
return nil
}
// GetCertificates returns ACME Certificates list
func (s *LocalStore) GetCertificates() ([]*Certificate, error) {
storedData, err := s.get()
if err != nil {
return nil, err
}
return storedData.Certificates, nil
}
// SaveCertificates stores ACME Certificates list
func (s *LocalStore) SaveCertificates(certificates []*Certificate) error {
storedData, err := s.get()
if err != nil {
return err
}
storedData.Certificates = certificates
s.SaveDataChan <- storedData
return nil
}
// GetHTTPChallengeToken Get the http challenge token from the store
func (s *LocalStore) GetHTTPChallengeToken(token, domain string) ([]byte, error) {
s.lock.RLock()
defer s.lock.RUnlock()
if s.storedData.HTTPChallenges == nil {
s.storedData.HTTPChallenges = map[string]map[string][]byte{}
}
if _, ok := s.storedData.HTTPChallenges[token]; !ok {
return nil, fmt.Errorf("cannot find challenge for token %v", token)
}
result, ok := s.storedData.HTTPChallenges[token][domain]
if !ok {
return nil, fmt.Errorf("cannot find challenge for token %v", token)
}
return result, nil
}
// SetHTTPChallengeToken Set the http challenge token in the store
func (s *LocalStore) SetHTTPChallengeToken(token, domain string, keyAuth []byte) error {
s.lock.Lock()
defer s.lock.Unlock()
if s.storedData.HTTPChallenges == nil {
s.storedData.HTTPChallenges = map[string]map[string][]byte{}
}
if _, ok := s.storedData.HTTPChallenges[token]; !ok {
s.storedData.HTTPChallenges[token] = map[string][]byte{}
}
s.storedData.HTTPChallenges[token][domain] = keyAuth
return nil
}
// RemoveHTTPChallengeToken Remove the http challenge token in the store
func (s *LocalStore) RemoveHTTPChallengeToken(token, domain string) error {
s.lock.Lock()
defer s.lock.Unlock()
if s.storedData.HTTPChallenges == nil {
return nil
}
if _, ok := s.storedData.HTTPChallenges[token]; ok {
if _, domainOk := s.storedData.HTTPChallenges[token][domain]; domainOk {
delete(s.storedData.HTTPChallenges[token], domain)
}
if len(s.storedData.HTTPChallenges[token]) == 0 {
delete(s.storedData.HTTPChallenges, token)
}
}
return nil
}
// AddTLSChallenge Add a certificate to the ACME TLS-ALPN-01 certificates storage
func (s *LocalStore) AddTLSChallenge(domain string, cert *Certificate) error {
s.lock.Lock()
defer s.lock.Unlock()
if s.storedData.TLSChallenges == nil {
s.storedData.TLSChallenges = make(map[string]*Certificate)
}
s.storedData.TLSChallenges[domain] = cert
return nil
}
// GetTLSChallenge Get a certificate from the ACME TLS-ALPN-01 certificates storage
func (s *LocalStore) GetTLSChallenge(domain string) (*Certificate, error) {
s.lock.Lock()
defer s.lock.Unlock()
if s.storedData.TLSChallenges == nil {
s.storedData.TLSChallenges = make(map[string]*Certificate)
}
return s.storedData.TLSChallenges[domain], nil
}
// RemoveTLSChallenge Remove a certificate from the ACME TLS-ALPN-01 certificates storage
func (s *LocalStore) RemoveTLSChallenge(domain string) error {
s.lock.Lock()
defer s.lock.Unlock()
if s.storedData.TLSChallenges == nil {
return nil
}
delete(s.storedData.TLSChallenges, domain)
return nil
}

35
old/provider/acme/local_store_unix.go
View file

@ -1,35 +0,0 @@
// +build !windows
package acme
import (
"fmt"
"os"
)
// CheckFile checks file permissions and content size
func CheckFile(name string) (bool, error) {
f, err := os.Open(name)
if err != nil {
if os.IsNotExist(err) {
f, err = os.Create(name)
if err != nil {
return false, err
}
return false, f.Chmod(0600)
}
return false, err
}
defer f.Close()
fi, err := f.Stat()
if err != nil {
return false, err
}
if fi.Mode().Perm()&0077 != 0 {
return false, fmt.Errorf("permissions %o for %s are too open, please use 600", fi.Mode().Perm(), name)
}
return fi.Size() > 0, nil
}

27
old/provider/acme/local_store_windows.go
View file

@ -1,27 +0,0 @@
package acme
import "os"
// CheckFile checks file content size
// Do not check file permissions on Windows right now
func CheckFile(name string) (bool, error) {
f, err := os.Open(name)
if err != nil {
if os.IsNotExist(err) {
f, err = os.Create(name)
if err != nil {
return false, err
}
return false, f.Chmod(0600)
}
return false, err
}
defer f.Close()
fi, err := f.Stat()
if err != nil {
return false, err
}
return fi.Size() > 0, nil
}

826
old/provider/acme/provider.go
View file

@ -1,826 +0,0 @@
package acme
import (
"crypto/tls"
"crypto/x509"
"fmt"
"io/ioutil"
fmtlog "log"
"net"
"net/url"
"reflect"
"strings"
"sync"
"time"
"github.com/cenk/backoff"
"github.com/containous/flaeg/parse"
"github.com/containous/traefik/old/log"
"github.com/containous/traefik/old/types"
"github.com/containous/traefik/rules"
"github.com/containous/traefik/safe"
traefiktls "github.com/containous/traefik/tls"
"github.com/containous/traefik/version"
"github.com/pkg/errors"
"github.com/sirupsen/logrus"
"github.com/xenolf/lego/acme"
legolog "github.com/xenolf/lego/log"
"github.com/xenolf/lego/providers/dns"
)
var (
// OSCPMustStaple enables OSCP stapling as from https://github.com/xenolf/lego/issues/270
OSCPMustStaple = false
)
// Configuration holds ACME configuration provided by users
type Configuration struct {
Email string `description:"Email address used for registration"`
ACMELogging bool `description:"Enable debug logging of ACME actions."`
CAServer string `description:"CA server to use."`
Storage string `description:"Storage to use."`
EntryPoint string `description:"EntryPoint to use."`
KeyType string `description:"KeyType used for generating certificate private key. Allow value 'EC256', 'EC384', 'RSA2048', 'RSA4096', 'RSA8192'. Default to 'RSA4096'"`
OnHostRule bool `description:"Enable certificate generation on frontends Host rules."`
OnDemand bool `description:"Enable on demand certificate generation. This will request a certificate from Let's Encrypt during the first TLS handshake for a hostname that does not yet have a certificate."` // Deprecated
DNSChallenge *DNSChallenge `description:"Activate DNS-01 Challenge"`
HTTPChallenge *HTTPChallenge `description:"Activate HTTP-01 Challenge"`
TLSChallenge *TLSChallenge `description:"Activate TLS-ALPN-01 Challenge"`
Domains []types.Domain `description:"CN and SANs (alternative domains) to each main domain using format: --acme.domains='main.com,san1.com,san2.com' --acme.domains='*.main.net'. No SANs for wildcards domain. Wildcard domains only accepted with DNSChallenge"`
}
// Provider holds configurations of the provider.
type Provider struct {
*Configuration
Store Store
certificates []*Certificate
account *Account
client *acme.Client
certsChan chan *Certificate
configurationChan chan<- types.ConfigMessage
certificateStore *traefiktls.CertificateStore
clientMutex sync.Mutex
configFromListenerChan chan types.Configuration
pool *safe.Pool
resolvingDomains map[string]struct{}
resolvingDomainsMutex sync.RWMutex
}
// Certificate is a struct which contains all data needed from an ACME certificate
type Certificate struct {
Domain types.Domain
Certificate []byte
Key []byte
}
// DNSChallenge contains DNS challenge Configuration
type DNSChallenge struct {
Provider string `description:"Use a DNS-01 based challenge provider rather than HTTPS."`
DelayBeforeCheck parse.Duration `description:"Assume DNS propagates after a delay in seconds rather than finding and querying nameservers."`
Resolvers types.DNSResolvers `description:"Use following DNS servers to resolve the FQDN authority."`
DisablePropagationCheck bool `description:"Disable the DNS propagation checks before notifying ACME that the DNS challenge is ready. [not recommended]"`
preCheckTimeout time.Duration
preCheckInterval time.Duration
}
// HTTPChallenge contains HTTP challenge Configuration
type HTTPChallenge struct {
EntryPoint string `description:"HTTP challenge EntryPoint"`
}
// TLSChallenge contains TLS challenge Configuration
type TLSChallenge struct{}
// SetConfigListenerChan initializes the configFromListenerChan
func (p *Provider) SetConfigListenerChan(configFromListenerChan chan types.Configuration) {
p.configFromListenerChan = configFromListenerChan
}
// SetCertificateStore allow to initialize certificate store
func (p *Provider) SetCertificateStore(certificateStore *traefiktls.CertificateStore) {
p.certificateStore = certificateStore
}
// ListenConfiguration sets a new Configuration into the configFromListenerChan
func (p *Provider) ListenConfiguration(config types.Configuration) {
p.configFromListenerChan <- config
}
// ListenRequest resolves new certificates for a domain from an incoming request and return a valid Certificate to serve (onDemand option)
func (p *Provider) ListenRequest(domain string) (*tls.Certificate, error) {
acmeCert, err := p.resolveCertificate(types.Domain{Main: domain}, false)
if acmeCert == nil || err != nil {
return nil, err
}
certificate, err := tls.X509KeyPair(acmeCert.Certificate, acmeCert.PrivateKey)
return &certificate, err
}
// Init for compatibility reason the BaseProvider implements an empty Init
func (p *Provider) Init(_ types.Constraints) error {
acme.UserAgent = fmt.Sprintf("containous-traefik/%s", version.Version)
if p.ACMELogging {
legolog.Logger = fmtlog.New(log.WriterLevel(logrus.InfoLevel), "legolog: ", 0)
} else {
legolog.Logger = fmtlog.New(ioutil.Discard, "", 0)
}
if p.Store == nil {
return errors.New("no store found for the ACME provider")
}
var err error
p.account, err = p.Store.GetAccount()
if err != nil {
return fmt.Errorf("unable to get ACME account : %v", err)
}
// Reset Account if caServer changed, thus registration URI can be updated
if p.account != nil && p.account.Registration != nil && !isAccountMatchingCaServer(p.account.Registration.URI, p.CAServer) {
log.Info("Account URI does not match the current CAServer. The account will be reset")
p.account = nil
}
p.certificates, err = p.Store.GetCertificates()
if err != nil {
return fmt.Errorf("unable to get ACME certificates : %v", err)
}
// Init the currently resolved domain map
p.resolvingDomains = make(map[string]struct{})
return nil
}
func isAccountMatchingCaServer(accountURI string, serverURI string) bool {
aru, err := url.Parse(accountURI)
if err != nil {
log.Infof("Unable to parse account.Registration URL : %v", err)
return false
}
cau, err := url.Parse(serverURI)
if err != nil {
log.Infof("Unable to parse CAServer URL : %v", err)
return false
}
return cau.Hostname() == aru.Hostname()
}
// Provide allows the file provider to provide configurations to traefik
// using the given Configuration channel.
func (p *Provider) Provide(configurationChan chan<- types.ConfigMessage, pool *safe.Pool) error {
p.pool = pool
p.watchCertificate()
p.watchNewDomains()
p.configurationChan = configurationChan
p.refreshCertificates()
p.deleteUnnecessaryDomains()
for i := 0; i < len(p.Domains); i++ {
domain := p.Domains[i]
safe.Go(func() {
if _, err := p.resolveCertificate(domain, true); err != nil {
log.Errorf("Unable to obtain ACME certificate for domains %q : %v", strings.Join(domain.ToStrArray(), ","), err)
}
})
}
p.renewCertificates()
ticker := time.NewTicker(24 * time.Hour)
pool.Go(func(stop chan bool) {
for {
select {
case <-ticker.C:
p.renewCertificates()
case <-stop:
ticker.Stop()
return
}
}
})
return nil
}
func (p *Provider) getClient() (*acme.Client, error) {
p.clientMutex.Lock()
defer p.clientMutex.Unlock()
if p.client != nil {
return p.client, nil
}
account, err := p.initAccount()
if err != nil {
return nil, err
}
log.Debug("Building ACME client...")
caServer := "https://acme-v02.api.letsencrypt.org/directory"
if len(p.CAServer) > 0 {
caServer = p.CAServer
}
log.Debug(caServer)
client, err := acme.NewClient(caServer, account, account.KeyType)
if err != nil {
return nil, err
}
// New users will need to register; be sure to save it
if account.GetRegistration() == nil {
log.Info("Register...")
reg, err := client.Register(true)
if err != nil {
return nil, err
}
account.Registration = reg
}
// Save the account once before all the certificates generation/storing
// No certificate can be generated if account is not initialized
err = p.Store.SaveAccount(account)
if err != nil {
return nil, err
}
if p.DNSChallenge != nil && len(p.DNSChallenge.Provider) > 0 {
log.Debugf("Using DNS Challenge provider: %s", p.DNSChallenge.Provider)
SetRecursiveNameServers(p.DNSChallenge.Resolvers)
SetPropagationCheck(p.DNSChallenge.DisablePropagationCheck)
err = dnsOverrideDelay(p.DNSChallenge.DelayBeforeCheck)
if err != nil {
return nil, err
}
var provider acme.ChallengeProvider
provider, err = dns.NewDNSChallengeProviderByName(p.DNSChallenge.Provider)
if err != nil {
return nil, err
}
client.ExcludeChallenges([]acme.Challenge{acme.HTTP01, acme.TLSALPN01})
err = client.SetChallengeProvider(acme.DNS01, provider)
if err != nil {
return nil, err
}
// Same default values than LEGO
p.DNSChallenge.preCheckTimeout = 60 * time.Second
p.DNSChallenge.preCheckInterval = 2 * time.Second
// Set the precheck timeout into the DNSChallenge provider
if challengeProviderTimeout, ok := provider.(acme.ChallengeProviderTimeout); ok {
p.DNSChallenge.preCheckTimeout, p.DNSChallenge.preCheckInterval = challengeProviderTimeout.Timeout()
}
} else if p.HTTPChallenge != nil && len(p.HTTPChallenge.EntryPoint) > 0 {
log.Debug("Using HTTP Challenge provider.")
client.ExcludeChallenges([]acme.Challenge{acme.DNS01, acme.TLSALPN01})
err = client.SetChallengeProvider(acme.HTTP01, &challengeHTTP{Store: p.Store})
if err != nil {
return nil, err
}
} else if p.TLSChallenge != nil {
log.Debug("Using TLS Challenge provider.")
client.ExcludeChallenges([]acme.Challenge{acme.HTTP01, acme.DNS01})
err = client.SetChallengeProvider(acme.TLSALPN01, &challengeTLSALPN{Store: p.Store})
if err != nil {
return nil, err
}
} else {
return nil, errors.New("ACME challenge not specified, please select TLS or HTTP or DNS Challenge")
}
p.client = client
return p.client, nil
}
func (p *Provider) initAccount() (*Account, error) {
if p.account == nil || len(p.account.Email) == 0 {
var err error
p.account, err = NewAccount(p.Email, p.KeyType)
if err != nil {
return nil, err
}
}
// Set the KeyType if not already defined in the account
if len(p.account.KeyType) == 0 {
p.account.KeyType = GetKeyType(p.KeyType)
}
return p.account, nil
}
func contains(entryPoints []string, acmeEntryPoint string) bool {
for _, entryPoint := range entryPoints {
if entryPoint == acmeEntryPoint {
return true
}
}
return false
}
func (p *Provider) watchNewDomains() {
p.pool.Go(func(stop chan bool) {
for {
select {
case config := <-p.configFromListenerChan:
for _, frontend := range config.Frontends {
if !contains(frontend.EntryPoints, p.EntryPoint) {
continue
}
for _, route := range frontend.Routes {
domainRules := rules.Rules{}
domains, err := domainRules.ParseDomains(route.Rule)
if err != nil {
log.Errorf("Error parsing domains in provider ACME: %v", err)
continue
}
if len(domains) == 0 {
log.Debugf("No domain parsed in rule %q in provider ACME", route.Rule)
continue
}
log.Debugf("Try to challenge certificate for domain %v founded in Host rule", domains)
var domain types.Domain
if len(domains) > 0 {
domain = types.Domain{Main: domains[0]}
if len(domains) > 1 {
domain.SANs = domains[1:]
}
safe.Go(func() {
if _, err := p.resolveCertificate(domain, false); err != nil {
log.Errorf("Unable to obtain ACME certificate for domains %q detected thanks to rule %q : %v", strings.Join(domains, ","), route.Rule, err)
}
})
}
}
}
case <-stop:
return
}
}
})
}
func (p *Provider) resolveCertificate(domain types.Domain, domainFromConfigurationFile bool) (*acme.CertificateResource, error) {
domains, err := p.getValidDomains(domain, domainFromConfigurationFile)
if err != nil {
return nil, err
}
// Check provided certificates
uncheckedDomains := p.getUncheckedDomains(domains, !domainFromConfigurationFile)
if len(uncheckedDomains) == 0 {
return nil, nil
}
p.addResolvingDomains(uncheckedDomains)
defer p.removeResolvingDomains(uncheckedDomains)
log.Debugf("Loading ACME certificates %+v...", uncheckedDomains)
client, err := p.getClient()
if err != nil {
return nil, fmt.Errorf("cannot get ACME client %v", err)
}
var certificate *acme.CertificateResource
bundle := true
if p.useCertificateWithRetry(uncheckedDomains) {
certificate, err = obtainCertificateWithRetry(domains, client, p.DNSChallenge.preCheckTimeout, p.DNSChallenge.preCheckInterval, bundle)
} else {
certificate, err = client.ObtainCertificate(domains, bundle, nil, OSCPMustStaple)
}
if err != nil {
return nil, fmt.Errorf("unable to generate a certificate for the domains %v: %v", uncheckedDomains, err)
}
if certificate == nil {
return nil, fmt.Errorf("domains %v do not generate a certificate", uncheckedDomains)
}
if len(certificate.Certificate) == 0 || len(certificate.PrivateKey) == 0 {
return nil, fmt.Errorf("domains %v generate certificate with no value: %v", uncheckedDomains, certificate)
}
log.Debugf("Certificates obtained for domains %+v", uncheckedDomains)
if len(uncheckedDomains) > 1 {
domain = types.Domain{Main: uncheckedDomains[0], SANs: uncheckedDomains[1:]}
} else {
domain = types.Domain{Main: uncheckedDomains[0]}
}
p.addCertificateForDomain(domain, certificate.Certificate, certificate.PrivateKey)
return certificate, nil
}
func (p *Provider) removeResolvingDomains(resolvingDomains []string) {
p.resolvingDomainsMutex.Lock()
defer p.resolvingDomainsMutex.Unlock()
for _, domain := range resolvingDomains {
delete(p.resolvingDomains, domain)
}
}
func (p *Provider) addResolvingDomains(resolvingDomains []string) {
p.resolvingDomainsMutex.Lock()
defer p.resolvingDomainsMutex.Unlock()
for _, domain := range resolvingDomains {
p.resolvingDomains[domain] = struct{}{}
}
}
func (p *Provider) useCertificateWithRetry(domains []string) bool {
// Check if we can use the retry mechanism only if we use the DNS Challenge and if is there are at least 2 domains to check
if p.DNSChallenge != nil && len(domains) > 1 {
rootDomain := ""
for _, searchWildcardDomain := range domains {
// Search a wildcard domain if not already found
if len(rootDomain) == 0 && strings.HasPrefix(searchWildcardDomain, "*.") {
rootDomain = strings.TrimPrefix(searchWildcardDomain, "*.")
if len(rootDomain) > 0 {
// Look for a root domain which matches the wildcard domain
for _, searchRootDomain := range domains {
if rootDomain == searchRootDomain {
// If the domains list contains a wildcard domain and its root domain, we can use the retry mechanism to obtain the certificate
return true
}
}
}
// There is only one wildcard domain in the slice, if its root domain has not been found, the retry mechanism does not have to be used
return false
}
}
}
return false
}
func obtainCertificateWithRetry(domains []string, client *acme.Client, timeout, interval time.Duration, bundle bool) (*acme.CertificateResource, error) {
var certificate *acme.CertificateResource
var err error
operation := func() error {
certificate, err = client.ObtainCertificate(domains, bundle, nil, OSCPMustStaple)
return err
}
notify := func(err error, time time.Duration) {
log.Errorf("Error obtaining certificate retrying in %s", time)
}
// Define a retry backOff to let LEGO tries twice to obtain a certificate for both wildcard and root domain
ebo := backoff.NewExponentialBackOff()
ebo.MaxElapsedTime = 2 * timeout
ebo.MaxInterval = interval
rbo := backoff.WithMaxRetries(ebo, 2)
err = backoff.RetryNotify(safe.OperationWithRecover(operation), rbo, notify)
if err != nil {
log.Errorf("Error obtaining certificate: %v", err)
return nil, err
}
return certificate, nil
}
func dnsOverrideDelay(delay parse.Duration) error {
if delay == 0 {
return nil
}
if delay > 0 {
log.Debugf("Delaying %d rather than validating DNS propagation now.", delay)
acme.PreCheckDNS = func(_, _ string) (bool, error) {
time.Sleep(time.Duration(delay))
return true, nil
}
} else {
return fmt.Errorf("delayBeforeCheck: %d cannot be less than 0", delay)
}
return nil
}
func (p *Provider) addCertificateForDomain(domain types.Domain, certificate []byte, key []byte) {
p.certsChan <- &Certificate{Certificate: certificate, Key: key, Domain: domain}
}
// deleteUnnecessaryDomains deletes from the configuration :
// - Duplicated domains
// - Domains which are checked by wildcard domain
func (p *Provider) deleteUnnecessaryDomains() {
var newDomains []types.Domain
for idxDomainToCheck, domainToCheck := range p.Domains {
keepDomain := true
for idxDomain, domain := range p.Domains {
if idxDomainToCheck == idxDomain {
continue
}
if reflect.DeepEqual(domain, domainToCheck) {
if idxDomainToCheck > idxDomain {
log.Warnf("The domain %v is duplicated in the configuration but will be process by ACME provider only once.", domainToCheck)
keepDomain = false
}
break
}
// Check if CN or SANS to check already exists
// or can not be checked by a wildcard
var newDomainsToCheck []string
for _, domainProcessed := range domainToCheck.ToStrArray() {
if idxDomain < idxDomainToCheck && isDomainAlreadyChecked(domainProcessed, domain.ToStrArray()) {
// The domain is duplicated in a CN
log.Warnf("Domain %q is duplicated in the configuration or validated by the domain %v. It will be processed once.", domainProcessed, domain)
continue
} else if domain.Main != domainProcessed && strings.HasPrefix(domain.Main, "*") && isDomainAlreadyChecked(domainProcessed, []string{domain.Main}) {
// Check if a wildcard can validate the domain
log.Warnf("Domain %q will not be processed by ACME provider because it is validated by the wildcard %q", domainProcessed, domain.Main)
continue
}
newDomainsToCheck = append(newDomainsToCheck, domainProcessed)
}
// Delete the domain if both Main and SANs can be validated by the wildcard domain
// otherwise keep the unchecked values
if newDomainsToCheck == nil {
keepDomain = false
break
}
domainToCheck.Set(newDomainsToCheck)
}
if keepDomain {
newDomains = append(newDomains, domainToCheck)
}
}
p.Domains = newDomains
}
func (p *Provider) watchCertificate() {
p.certsChan = make(chan *Certificate)
p.pool.Go(func(stop chan bool) {
for {
select {
case cert := <-p.certsChan:
certUpdated := false
for _, domainsCertificate := range p.certificates {
if reflect.DeepEqual(cert.Domain, domainsCertificate.Domain) {
domainsCertificate.Certificate = cert.Certificate
domainsCertificate.Key = cert.Key
certUpdated = true
break
}
}
if !certUpdated {
p.certificates = append(p.certificates, cert)
}
err := p.saveCertificates()
if err != nil {
log.Error(err)
}
case <-stop:
return
}
}
})
}
func (p *Provider) saveCertificates() error {
err := p.Store.SaveCertificates(p.certificates)
p.refreshCertificates()
return err
}
func (p *Provider) refreshCertificates() {
config := types.ConfigMessage{
ProviderName: "ACME",
Configuration: &types.Configuration{
Backends: map[string]*types.Backend{},
Frontends: map[string]*types.Frontend{},
TLS: []*traefiktls.Configuration{},
},
}
for _, cert := range p.certificates {
certificate := &traefiktls.Certificate{CertFile: traefiktls.FileOrContent(cert.Certificate), KeyFile: traefiktls.FileOrContent(cert.Key)}
config.Configuration.TLS = append(config.Configuration.TLS, &traefiktls.Configuration{Certificate: certificate, EntryPoints: []string{p.EntryPoint}})
}
p.configurationChan <- config
}
func (p *Provider) renewCertificates() {
log.Info("Testing certificate renew...")
for _, certificate := range p.certificates {
crt, err := getX509Certificate(certificate)
// If there's an error, we assume the cert is broken, and needs update
// <= 30 days left, renew certificate
if err != nil || crt == nil || crt.NotAfter.Before(time.Now().Add(24*30*time.Hour)) {
client, err := p.getClient()
if err != nil {
log.Infof("Error renewing certificate from LE : %+v, %v", certificate.Domain, err)
continue
}
log.Infof("Renewing certificate from LE : %+v", certificate.Domain)
renewedCert, err := client.RenewCertificate(acme.CertificateResource{
Domain: certificate.Domain.Main,
PrivateKey: certificate.Key,
Certificate: certificate.Certificate,
}, true, OSCPMustStaple)
if err != nil {
log.Errorf("Error renewing certificate from LE: %v, %v", certificate.Domain, err)
continue
}
if len(renewedCert.Certificate) == 0 || len(renewedCert.PrivateKey) == 0 {
log.Errorf("domains %v renew certificate with no value: %v", certificate.Domain.ToStrArray(), certificate)
continue
}
p.addCertificateForDomain(certificate.Domain, renewedCert.Certificate, renewedCert.PrivateKey)
}
}
}
// Get provided certificate which check a domains list (Main and SANs)
// from static and dynamic provided certificates
func (p *Provider) getUncheckedDomains(domainsToCheck []string, checkConfigurationDomains bool) []string {
p.resolvingDomainsMutex.RLock()
defer p.resolvingDomainsMutex.RUnlock()
log.Debugf("Looking for provided certificate(s) to validate %q...", domainsToCheck)
allDomains := p.certificateStore.GetAllDomains()
// Get ACME certificates
for _, certificate := range p.certificates {
allDomains = append(allDomains, strings.Join(certificate.Domain.ToStrArray(), ","))
}
// Get currently resolved domains
for domain := range p.resolvingDomains {
allDomains = append(allDomains, domain)
}
// Get Configuration Domains
if checkConfigurationDomains {
for i := 0; i < len(p.Domains); i++ {
allDomains = append(allDomains, strings.Join(p.Domains[i].ToStrArray(), ","))
}
}
return searchUncheckedDomains(domainsToCheck, allDomains)
}
func searchUncheckedDomains(domainsToCheck []string, existentDomains []string) []string {
var uncheckedDomains []string
for _, domainToCheck := range domainsToCheck {
if !isDomainAlreadyChecked(domainToCheck, existentDomains) {
uncheckedDomains = append(uncheckedDomains, domainToCheck)
}
}
if len(uncheckedDomains) == 0 {
log.Debugf("No ACME certificate generation required for domains %q.", domainsToCheck)
} else {
log.Debugf("Domains %q need ACME certificates generation for domains %q.", domainsToCheck, strings.Join(uncheckedDomains, ","))
}
return uncheckedDomains
}
func getX509Certificate(certificate *Certificate) (*x509.Certificate, error) {
tlsCert, err := tls.X509KeyPair(certificate.Certificate, certificate.Key)
if err != nil {
log.Errorf("Failed to load TLS keypair from ACME certificate for domain %q (SAN : %q), certificate will be renewed : %v", certificate.Domain.Main, strings.Join(certificate.Domain.SANs, ","), err)
return nil, err
}
crt := tlsCert.Leaf
if crt == nil {
crt, err = x509.ParseCertificate(tlsCert.Certificate[0])
if err != nil {
log.Errorf("Failed to parse TLS keypair from ACME certificate for domain %q (SAN : %q), certificate will be renewed : %v", certificate.Domain.Main, strings.Join(certificate.Domain.SANs, ","), err)
}
}
return crt, err
}
// getValidDomains checks if given domain is allowed to generate a ACME certificate and return it
func (p *Provider) getValidDomains(domain types.Domain, wildcardAllowed bool) ([]string, error) {
domains := domain.ToStrArray()
if len(domains) == 0 {
return nil, errors.New("unable to generate a certificate in ACME provider when no domain is given")
}
if strings.HasPrefix(domain.Main, "*") {
if !wildcardAllowed {
return nil, fmt.Errorf("unable to generate a wildcard certificate in ACME provider for domain %q from a 'Host' rule", strings.Join(domains, ","))
}
if p.DNSChallenge == nil {
return nil, fmt.Errorf("unable to generate a wildcard certificate in ACME provider for domain %q : ACME needs a DNSChallenge", strings.Join(domains, ","))
}
if strings.HasPrefix(domain.Main, "*.*") {
return nil, fmt.Errorf("unable to generate a wildcard certificate in ACME provider for domain %q : ACME does not allow '*.*' wildcard domain", strings.Join(domains, ","))
}
}
for _, san := range domain.SANs {
if strings.HasPrefix(san, "*") {
return nil, fmt.Errorf("unable to generate a certificate in ACME provider for domains %q: SAN %q can not be a wildcard domain", strings.Join(domains, ","), san)
}
}
var cleanDomains []string
for _, domain := range domains {
canonicalDomain := types.CanonicalDomain(domain)
cleanDomain := acme.UnFqdn(canonicalDomain)
if canonicalDomain != cleanDomain {
log.Warnf("FQDN detected, please remove the trailing dot: %s", canonicalDomain)
}
cleanDomains = append(cleanDomains, cleanDomain)
}
return cleanDomains, nil
}
func isDomainAlreadyChecked(domainToCheck string, existentDomains []string) bool {
for _, certDomains := range existentDomains {
for _, certDomain := range strings.Split(certDomains, ",") {
if types.MatchDomain(domainToCheck, certDomain) {
return true
}
}
}
return false
}
// SetPropagationCheck to disable the Lego PreCheck.
func SetPropagationCheck(disable bool) {
if disable {
acme.PreCheckDNS = func(_, _ string) (bool, error) {
return true, nil
}
}
}
// SetRecursiveNameServers to provide a custom DNS resolver.
func SetRecursiveNameServers(dnsResolvers []string) {
resolvers := normaliseDNSResolvers(dnsResolvers)
if len(resolvers) > 0 {
acme.RecursiveNameservers = resolvers
log.Infof("Validating FQDN authority with DNS using %+v", resolvers)
}
}
// ensure all servers have a port number
func normaliseDNSResolvers(dnsResolvers []string) []string {
var normalisedResolvers []string
for _, server := range dnsResolvers {
srv := strings.TrimSpace(server)
if len(srv) > 0 {
if host, port, err := net.SplitHostPort(srv); err != nil {
normalisedResolvers = append(normalisedResolvers, net.JoinHostPort(srv, "53"))
} else {
normalisedResolvers = append(normalisedResolvers, net.JoinHostPort(host, port))
}
}
}
return normalisedResolvers
}

25
old/provider/acme/store.go
View file

@ -1,25 +0,0 @@
package acme
// StoredData represents the data managed by the Store
type StoredData struct {
Account *Account
Certificates []*Certificate
HTTPChallenges map[string]map[string][]byte
TLSChallenges map[string]*Certificate
}
// Store is a generic interface to represents a storage
type Store interface {
GetAccount() (*Account, error)
SaveAccount(*Account) error
GetCertificates() ([]*Certificate, error)
SaveCertificates([]*Certificate) error
GetHTTPChallengeToken(token, domain string) ([]byte, error)
SetHTTPChallengeToken(token, domain string, keyAuth []byte) error
RemoveHTTPChallengeToken(token, domain string) error
AddTLSChallenge(domain string, cert *Certificate) error
GetTLSChallenge(domain string) (*Certificate, error)
RemoveTLSChallenge(domain string) error
}