homelab/traefik
1
0
Fork 0
Code Activity

ACME TLS ALPN

Browse source
This commit is contained in:
Ludovic Fernandez 2018-07-03 12:44:04 +02:00 • committed by Traefiker Bot
parent 17ad5153b8
commit 139f280f35
258 changed files with 25528 additions and 1516 deletions
Download patch file Download diff file Expand all files Collapse all files

5
provider/acme/account.go
View file

@ -73,8 +73,11 @@ func GetKeyType(value string) acme.KeyType {
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.Warnf("Unable to determine key type value %s. Use %s as default value", value, acme.RSA4096)
log.Infof("Unable to determine key type value %q. Use default key type %v.", value, acme.RSA4096)
return acme.RSA4096
}
}

122
provider/acme/challenge.go → provider/acme/challenge_http.go
View file

@ -2,43 +2,80 @@ package acme
import (
"fmt"
"net"
"net/http"
"time"
"github.com/cenk/backoff"
"github.com/containous/flaeg"
"github.com/containous/mux"
"github.com/containous/traefik/log"
"github.com/containous/traefik/safe"
"github.com/xenolf/lego/acme"
)
func dnsOverrideDelay(delay flaeg.Duration) error {
if delay == 0 {
return nil
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 {
httpChallenges, err := c.Store.GetHTTPChallenges()
if err != nil {
return fmt.Errorf("unable to get HTTPChallenges : %s", err)
}
if delay > 0 {
log.Debugf("Delaying %d rather than validating DNS propagation now.", delay)
if httpChallenges == nil {
httpChallenges = map[string]map[string][]byte{}
}
acme.PreCheckDNS = func(_, _ string) (bool, error) {
time.Sleep(time.Duration(delay))
return true, nil
if _, ok := httpChallenges[token]; !ok {
httpChallenges[token] = map[string][]byte{}
}
httpChallenges[token][domain] = []byte(keyAuth)
return c.Store.SaveHTTPChallenges(httpChallenges)
}
// CleanUp cleans the challenges when certificate is obtained
func (c *challengeHTTP) CleanUp(domain, token, keyAuth string) error {
httpChallenges, err := c.Store.GetHTTPChallenges()
if err != nil {
return fmt.Errorf("unable to get HTTPChallenges : %s", err)
}
log.Debugf("Challenge CleanUp for domain %s", domain)
if _, ok := httpChallenges[token]; ok {
if _, domainOk := httpChallenges[token][domain]; domainOk {
delete(httpChallenges[token], domain)
}
} else {
return fmt.Errorf("delayBeforeCheck: %d cannot be less than 0", delay)
if len(httpChallenges[token]) == 0 {
delete(httpChallenges, token)
}
return c.Store.SaveHTTPChallenges(httpChallenges)
}
return nil
}
// 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 ok bool
httpChallenges, err := store.GetHTTPChallenges()
if err != nil {
return fmt.Errorf("HTTPChallenges not available : %s", err)
}
var ok bool
if result, ok = httpChallenges[token][domain]; !ok {
return fmt.Errorf("cannot find challenge for token %v", token)
}
@ -56,44 +93,33 @@ func getTokenValue(token, domain string, store Store) []byte {
log.Errorf("Error getting challenge for token: %v", err)
return []byte{}
}
return result
}
func presentHTTPChallenge(domain, token, keyAuth string, store Store) error {
httpChallenges, err := store.GetHTTPChallenges()
if err != nil {
return fmt.Errorf("unable to get HTTPChallenges : %s", err)
}
// 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
}
if httpChallenges == nil {
httpChallenges = map[string]map[string][]byte{}
}
if _, ok := httpChallenges[token]; !ok {
httpChallenges[token] = map[string][]byte{}
}
httpChallenges[token][domain] = []byte(keyAuth)
return store.SaveHTTPChallenges(httpChallenges)
}
func cleanUpHTTPChallenge(domain, token string, store Store) error {
httpChallenges, err := store.GetHTTPChallenges()
if err != nil {
return fmt.Errorf("unable to get HTTPChallenges : %s", err)
}
log.Debugf("Challenge CleanUp for domain %s", domain)
if _, ok := httpChallenges[token]; ok {
if _, domainOk := httpChallenges[token][domain]; domainOk {
delete(httpChallenges[token], domain)
}
if len(httpChallenges[token]) == 0 {
delete(httpChallenges, token)
}
return store.SaveHTTPChallenges(httpChallenges)
}
return nil
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
provider/acme/challenge_tls.go Normal file
View file

@ -0,0 +1,52 @@
package acme
import (
"crypto/tls"
"github.com/containous/traefik/log"
"github.com/containous/traefik/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
}

49
provider/acme/local_store.go
View file

@ -5,6 +5,7 @@ import (
"io/ioutil"
"os"
"regexp"
"sync"
"github.com/containous/traefik/log"
"github.com/containous/traefik/safe"
@ -17,18 +18,22 @@ 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)}
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)}
s.storedData = &StoredData{
HTTPChallenges: make(map[string]map[string][]byte),
TLSChallenges: make(map[string]*Certificate),
}
hasData, err := CheckFile(s.filename)
if err != nil {
@ -159,3 +164,41 @@ func (s *LocalStore) SaveHTTPChallenges(httpChallenges map[string]map[string][]b
s.storedData.HTTPChallenges = httpChallenges
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
}

748
provider/acme/provider.go
View file

@ -6,8 +6,6 @@ import (
"fmt"
"io/ioutil"
fmtlog "log"
"net"
"net/http"
"reflect"
"strings"
"sync"
@ -15,7 +13,6 @@ import (
"github.com/BurntSushi/ty/fun"
"github.com/containous/flaeg"
"github.com/containous/mux"
"github.com/containous/traefik/log"
"github.com/containous/traefik/rules"
"github.com/containous/traefik/safe"
@ -46,6 +43,7 @@ type Configuration struct {
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"`
}
@ -82,55 +80,17 @@ 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
}
func (p *Provider) init() error {
acme.UserAgent = fmt.Sprintf("containous-traefik/%s", version.Version)
if p.ACMELogging {
legolog.Logger = fmtlog.New(log.WriterLevel(logrus.DebugLevel), "legolog: ", 0)
} else {
legolog.Logger = fmtlog.New(ioutil.Discard, "", 0)
}
var err error
if p.Store == nil {
err = errors.New("no store found for the ACME provider")
return err
}
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 && !strings.HasPrefix(p.account.Registration.URI, p.CAServer) {
p.account = nil
}
p.certificates, err = p.Store.GetCertificates()
if err != nil {
return fmt.Errorf("unable to get ACME certificates : %v", err)
}
p.watchCertificate()
p.watchNewDomains()
return 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
}
}
return p.account, nil
// SetCertificateStore allow to initialize certificate store
func (p *Provider) SetCertificateStore(certificateStore *traefiktls.CertificateStore) {
p.certificateStore = certificateStore
}
// ListenConfiguration sets a new Configuration into the configFromListenerChan
@ -150,94 +110,78 @@ func (p *Provider) ListenRequest(domain string) (*tls.Certificate, error) {
return &certificate, err
}
func (p *Provider) watchNewDomains() {
p.pool.Go(func(stop chan bool) {
// 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, constraints types.Constraints) error {
p.pool = pool
err := p.init()
if err != nil {
return err
}
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 config := <-p.configFromListenerChan:
for _, frontend := range config.Frontends {
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", 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 <-ticker.C:
p.renewCertificates()
case <-stop:
ticker.Stop()
return
}
}
})
return nil
}
// SetCertificateStore allow to initialize certificate store
func (p *Provider) SetCertificateStore(certificateStore *traefiktls.CertificateStore) {
p.certificateStore = certificateStore
}
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
}
log.Debugf("Loading ACME certificates %+v...", uncheckedDomains)
client, err := p.getClient()
if err != nil {
return nil, fmt.Errorf("cannot get ACME client %v", err)
}
bundle := true
certificate, err := client.ObtainCertificate(uncheckedDomains, bundle, nil, OSCPMustStaple)
if err != nil {
return nil, fmt.Errorf("cannot obtain certificates: %+v", err)
}
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:]}
func (p *Provider) init() error {
acme.UserAgent = fmt.Sprintf("containous-traefik/%s", version.Version)
if p.ACMELogging {
legolog.Logger = fmtlog.New(log.WriterLevel(logrus.InfoLevel), "legolog: ", 0)
} else {
domain = types.Domain{Main: uncheckedDomains[0]}
legolog.Logger = fmtlog.New(ioutil.Discard, "", 0)
}
p.addCertificateForDomain(domain, certificate.Certificate, certificate.PrivateKey)
return certificate, nil
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 && !strings.HasPrefix(p.account.Registration.URI, p.CAServer) {
p.account = nil
}
p.certificates, err = p.Store.GetCertificates()
if err != nil {
return fmt.Errorf("unable to get ACME certificates : %v", err)
}
p.watchCertificate()
p.watchNewDomains()
return nil
}
func (p *Provider) getClient() (*acme.Client, error) {
@ -299,7 +243,7 @@ func (p *Provider) getClient() (*acme.Client, error) {
return nil, err
}
client.ExcludeChallenges([]acme.Challenge{acme.HTTP01})
client.ExcludeChallenges([]acme.Challenge{acme.HTTP01, acme.TLSALPN01})
err = client.SetChallengeProvider(acme.DNS01, provider)
if err != nil {
@ -308,67 +252,140 @@ func (p *Provider) getClient() (*acme.Client, error) {
} else if p.HTTPChallenge != nil && len(p.HTTPChallenge.EntryPoint) > 0 {
log.Debug("Using HTTP Challenge provider.")
client.ExcludeChallenges([]acme.Challenge{acme.DNS01})
client.ExcludeChallenges([]acme.Challenge{acme.DNS01, acme.TLSALPN01})
err = client.SetChallengeProvider(acme.HTTP01, p)
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 HTTP or DNS Challenge")
return nil, errors.New("ACME challenge not specified, please select TLS or HTTP or DNS Challenge")
}
p.client = client
return p.client, nil
}
// Present presents a challenge to obtain new ACME certificate
func (p *Provider) Present(domain, token, keyAuth string) error {
return presentHTTPChallenge(domain, token, keyAuth, p.Store)
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
}
}
return p.account, nil
}
// CleanUp cleans the challenges when certificate is obtained
func (p *Provider) CleanUp(domain, token, keyAuth string) error {
return cleanUpHTTPChallenge(domain, token, p.Store)
}
// 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, constraints types.Constraints) error {
p.pool = pool
err := p.init()
if err != nil {
return err
}
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) {
func (p *Provider) watchNewDomains() {
p.pool.Go(func(stop chan bool) {
for {
select {
case <-ticker.C:
p.renewCertificates()
case config := <-p.configFromListenerChan:
for _, frontend := range config.Frontends {
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", 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:
ticker.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
}
log.Debugf("Loading ACME certificates %+v...", uncheckedDomains)
client, err := p.getClient()
if err != nil {
return nil, fmt.Errorf("cannot get ACME client %v", err)
}
bundle := true
certificate, err := client.ObtainCertificate(uncheckedDomains, bundle, nil, OSCPMustStaple)
if err != nil {
return nil, fmt.Errorf("cannot obtain certificates: %+v", err)
}
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 dnsOverrideDelay(delay flaeg.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
}
@ -376,219 +393,6 @@ func (p *Provider) addCertificateForDomain(domain types.Domain, certificate []by
p.certsChan <- &Certificate{Certificate: certificate, Key: key, Domain: domain}
}
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)
}
p.saveCertificates()
case <-stop:
return
}
}
})
}
func (p *Provider) saveCertificates() {
err := p.Store.SaveCertificates(p.certificates)
if err != nil {
log.Error(err)
}
p.refreshCertificates()
}
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
}
// Timeout calculates the maximum of time allowed to resolved an ACME challenge
func (p *Provider) Timeout() (timeout, interval time.Duration) {
return 60 * time.Second, 5 * time.Second
}
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)
}
}
}
// 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)
}))
}
// 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 {
log.Debugf("Looking for provided certificate(s) to validate %q...", domainsToCheck)
var allDomains []string
allDomains = p.certificateStore.GetAllDomains()
// Get ACME certificates
for _, certificate := range p.certificates {
allDomains = append(allDomains, strings.Join(certificate.Domain.ToStrArray(), ","))
}
// 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 to generate 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) {
var crt *x509.Certificate
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)
}
}
domains = fun.Map(types.CanonicalDomain, domains).([]string)
return domains, 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
}
// deleteUnnecessaryDomains deletes from the configuration :
// - Duplicated domains
// - Domains which are checked by wildcard domain
@ -643,3 +447,193 @@ func (p *Provider) deleteUnnecessaryDomains() {
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 {
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 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 to generate 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)
}
}
domains = fun.Map(types.CanonicalDomain, domains).([]string)
return domains, 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
}

6
provider/acme/store.go
View file

@ -5,6 +5,7 @@ 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
@ -13,6 +14,11 @@ type Store interface {
SaveAccount(*Account) error
GetCertificates() ([]*Certificate, error)
SaveCertificates([]*Certificate) error
GetHTTPChallenges() (map[string]map[string][]byte, error)
SaveHTTPChallenges(map[string]map[string][]byte) error
AddTLSChallenge(domain string, cert *Certificate) error
GetTLSChallenge(domain string) (*Certificate, error)
RemoveTLSChallenge(domain string) error
}