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@ -23,6 +23,7 @@ import (
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"crypto/x509"
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"crypto/x509/pkix"
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"encoding/asn1"
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"encoding/json"
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"fmt"
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weakrand "math/rand"
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"net"
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@ -31,7 +32,9 @@ import (
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"time"
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"github.com/mholt/acmez"
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"github.com/mholt/acmez/acme"
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"go.uber.org/zap"
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"golang.org/x/net/idna"
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)
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// Config configures a certificate manager instance.
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@ -54,45 +57,48 @@ type Config struct {
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// DefaultServerName specifies a server name
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// to use when choosing a certificate if the
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// ClientHello's ServerName field is empty
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// ClientHello's ServerName field is empty.
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DefaultServerName string
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// The state needed to operate on-demand TLS;
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// if non-nil, on-demand TLS is enabled and
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// certificate operations are deferred to
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// TLS handshakes (or as-needed)
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// TLS handshakes (or as-needed).
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// TODO: Can we call this feature "Reactive/Lazy/Passive TLS" instead?
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OnDemand *OnDemandConfig
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// Add the must staple TLS extension to the CSR
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// Adds the must staple TLS extension to the CSR.
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MustStaple bool
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// The type that issues certificates; the
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// default Issuer is ACMEManager
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Issuer Issuer
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// The type that revokes certificates; must
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// be configured in conjunction with the Issuer
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// field such that both the Issuer and Revoker
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// are related (because issuance information is
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// required for revocation)
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Revoker Revoker
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// The source for getting new certificates; the
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// default Issuer is ACMEManager. If multiple
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// issuers are specified, they will be tried in
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// turn until one succeeds.
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Issuers []Issuer
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// The source of new private keys for certificates;
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// the default KeySource is StandardKeyGenerator
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// the default KeySource is StandardKeyGenerator.
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KeySource KeyGenerator
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// CertSelection chooses one of the certificates
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// with which the ClientHello will be completed;
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// if not set, DefaultCertificateSelector will
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// be used
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// be used.
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CertSelection CertificateSelector
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// The storage to access when storing or
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// loading TLS assets
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// OCSP configures how OCSP is handled. By default,
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// OCSP responses are fetched for every certificate
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// with a responder URL, and cached on disk. Changing
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// these defaults is STRONGLY discouraged unless you
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// have a compelling reason to put clients at greater
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// risk and reduce their privacy.
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OCSP OCSPConfig
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// The storage to access when storing or loading
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// TLS assets. Default is the local file system.
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Storage Storage
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// Set a logger to enable logging
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// Set a logger to enable logging.
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Logger *zap.Logger
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// required pointer to the in-memory cert cache
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@ -116,6 +122,9 @@ type Config struct {
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// same, default certificate cache. All configs returned
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// by NewDefault() are based on the values of the fields of
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// Default at the time it is called.
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//
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// This is the only way to get a config that uses the
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// default certificate cache.
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func NewDefault() *Config {
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defaultCacheMu.Lock()
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if defaultCache == nil {
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@ -153,7 +162,7 @@ func NewDefault() *Config {
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// the vast majority of cases, there will be only a
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// single Config, thus the default cache (which always
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// uses the default Config) and default config will
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// suffice, and you should use New() instead.
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// suffice, and you should use NewDefault() instead.
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func New(certCache *Cache, cfg Config) *Config {
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if certCache == nil {
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panic("a certificate cache is required")
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@ -196,23 +205,11 @@ func newWithCache(certCache *Cache, cfg Config) *Config {
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if cfg.Storage == nil {
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cfg.Storage = Default.Storage
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}
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if cfg.Issuer == nil {
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cfg.Issuer = Default.Issuer
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if cfg.Issuer == nil {
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// okay really, we need an issuer,
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// that's kind of the point; most
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// people would probably want ACME
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cfg.Issuer = NewACMEManager(&cfg, DefaultACME)
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}
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// issuer and revoker go together; if user
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// specifies their own issuer, we don't want
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// to override their revoker, hence we only
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// do this if Issuer was also nil
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if cfg.Revoker == nil {
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cfg.Revoker = Default.Revoker
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if cfg.Revoker == nil {
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cfg.Revoker = NewACMEManager(&cfg, DefaultACME)
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}
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if len(cfg.Issuers) == 0 {
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cfg.Issuers = Default.Issuers
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if len(cfg.Issuers) == 0 {
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// at least one issuer is absolutely required
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cfg.Issuers = []Issuer{NewACMEManager(&cfg, DefaultACME)}
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}
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}
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@ -223,7 +220,6 @@ func newWithCache(certCache *Cache, cfg Config) *Config {
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cfg.Storage = defaultFileStorage
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}
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// ensure the unexported fields are valid
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cfg.certCache = certCache
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return &cfg
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@ -254,6 +250,29 @@ func (cfg *Config) ManageSync(domainNames []string) error {
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return cfg.manageAll(nil, domainNames, false)
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}
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// ClientCredentials returns a list of TLS client certificate chains for the given identifiers.
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// The return value can be used in a tls.Config to enable client authentication using managed certificates.
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// Any certificates that need to be obtained or renewed for these identifiers will be managed accordingly.
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func (cfg *Config) ClientCredentials(ctx context.Context, identifiers []string) ([]tls.Certificate, error) {
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err := cfg.manageAll(ctx, identifiers, false)
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if err != nil {
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return nil, err
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}
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var chains []tls.Certificate
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for _, id := range identifiers {
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certRes, err := cfg.loadCertResourceAnyIssuer(id)
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if err != nil {
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return chains, err
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}
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chain, err := tls.X509KeyPair(certRes.CertificatePEM, certRes.PrivateKeyPEM)
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if err != nil {
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return chains, err
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}
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chains = append(chains, chain)
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}
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return chains, nil
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}
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// ManageAsync is the same as ManageSync, except that ACME
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// operations are performed asynchronously (in the background).
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// This method returns before certificates are ready. It is
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@ -360,6 +379,28 @@ func (cfg *Config) manageOne(ctx context.Context, domainName string, async bool)
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return nil
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}
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// Unmanage causes the certificates for domainNames to stop being managed.
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// If there are certificates for the supplied domain names in the cache, they
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// are evicted from the cache.
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func (cfg *Config) Unmanage(domainNames []string) {
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var deleteQueue []Certificate
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for _, domainName := range domainNames {
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certs := cfg.certCache.AllMatchingCertificates(domainName)
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for _, cert := range certs {
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if !cert.managed {
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continue
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}
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deleteQueue = append(deleteQueue, cert)
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}
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}
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cfg.certCache.mu.Lock()
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for _, cert := range deleteQueue {
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cfg.certCache.removeCertificate(cert)
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}
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cfg.certCache.mu.Unlock()
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}
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// ObtainCert obtains a certificate for name using cfg, as long
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// as a certificate does not already exist in storage for that
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// name. The name must qualify and cfg must be flagged as Managed.
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@ -372,27 +413,22 @@ func (cfg *Config) manageOne(ctx context.Context, domainName string, async bool)
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// TODO: consider moving interactive param into the Config struct,
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// and maybe retry settings into the Config struct as well? (same for RenewCert)
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func (cfg *Config) ObtainCert(ctx context.Context, name string, interactive bool) error {
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if cfg.storageHasCertResources(name) {
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return nil
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}
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issuer, err := cfg.getPrecheckedIssuer(ctx, []string{name}, interactive)
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if err != nil {
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return err
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if len(cfg.Issuers) == 0 {
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return fmt.Errorf("no issuers configured; impossible to obtain or check for existing certificate in storage")
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}
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if issuer == nil {
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if cfg.storageHasCertResourcesAnyIssuer(name) {
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return nil
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}
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return cfg.obtainWithIssuer(ctx, issuer, name, interactive)
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}
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func loggerNamed(l *zap.Logger, name string) *zap.Logger {
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if l == nil {
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return nil
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// ensure storage is writeable and readable
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// TODO: this is not necessary every time; should only perform check once every so often for each storage, which may require some global state...
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err := cfg.checkStorage()
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if err != nil {
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return fmt.Errorf("failed storage check: %v - storage is probably misconfigured", err)
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}
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return l.Named(name)
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return cfg.obtainCert(ctx, name, interactive)
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}
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func (cfg *Config) obtainWithIssuer(ctx context.Context, issuer Issuer, name string, interactive bool) error {
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func (cfg *Config) obtainCert(ctx context.Context, name string, interactive bool) error {
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log := loggerNamed(cfg.Logger, "obtain")
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if log != nil {
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@ -400,10 +436,10 @@ func (cfg *Config) obtainWithIssuer(ctx context.Context, issuer Issuer, name str
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}
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// ensure idempotency of the obtain operation for this name
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lockKey := cfg.lockKey("cert_acme", name)
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lockKey := cfg.lockKey(certIssueLockOp, name)
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err := acquireLock(ctx, cfg.Storage, lockKey)
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if err != nil {
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return err
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return fmt.Errorf("unable to acquire lock '%s': %v", lockKey, err)
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}
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defer func() {
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if log != nil {
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@ -424,7 +460,7 @@ func (cfg *Config) obtainWithIssuer(ctx context.Context, issuer Issuer, name str
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f := func(ctx context.Context) error {
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// check if obtain is still needed -- might have been obtained during lock
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if cfg.storageHasCertResources(name) {
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if cfg.storageHasCertResourcesAnyIssuer(name) {
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if log != nil {
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log.Info("certificate already exists in storage", zap.String("identifier", name))
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}
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@ -445,8 +481,24 @@ func (cfg *Config) obtainWithIssuer(ctx context.Context, issuer Issuer, name str
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return err
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}
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issuedCert, err := issuer.Issue(ctx, csr)
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// try to obtain from each issuer until we succeed
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var issuedCert *IssuedCertificate
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var issuerUsed Issuer
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for _, issuer := range cfg.Issuers {
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if prechecker, ok := issuer.(PreChecker); ok {
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err = prechecker.PreCheck(ctx, []string{name}, interactive)
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if err != nil {
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continue
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}
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}
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issuedCert, err = issuer.Issue(ctx, csr)
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if err == nil {
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issuerUsed = issuer
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break
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}
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}
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if err != nil {
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// TODO: only the error from the last issuer will be returned, oh well?
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return fmt.Errorf("[%s] Obtain: %w", name, err)
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}
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@ -457,7 +509,7 @@ func (cfg *Config) obtainWithIssuer(ctx context.Context, issuer Issuer, name str
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PrivateKeyPEM: privKeyPEM,
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IssuerData: issuedCert.Metadata,
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}
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err = cfg.saveCertResource(certRes)
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err = cfg.saveCertResource(issuerUsed, certRes)
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if err != nil {
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return fmt.Errorf("[%s] Obtain: saving assets: %v", name, err)
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}
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@ -480,21 +532,32 @@ func (cfg *Config) obtainWithIssuer(ctx context.Context, issuer Issuer, name str
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return err
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}
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func (cfg *Config) storageHasCertResourcesAnyIssuer(name string) bool {
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for _, iss := range cfg.Issuers {
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if cfg.storageHasCertResources(iss, name) {
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return true
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}
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}
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return false
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}
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// RenewCert renews the certificate for name using cfg. It stows the
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// renewed certificate and its assets in storage if successful. It
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// DOES NOT update the in-memory cache with the new certificate.
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func (cfg *Config) RenewCert(ctx context.Context, name string, interactive bool) error {
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issuer, err := cfg.getPrecheckedIssuer(ctx, []string{name}, interactive)
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if err != nil {
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return err
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if len(cfg.Issuers) == 0 {
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return fmt.Errorf("no issuers configured; impossible to renew or check existing certificate in storage")
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}
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if issuer == nil {
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return nil
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// ensure storage is writeable and readable
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|
|
|
|
// TODO: this is not necessary every time; should only perform check once every so often for each storage, which may require some global state...
|
|
|
|
|
err := cfg.checkStorage()
|
|
|
|
|
if err != nil {
|
|
|
|
|
return fmt.Errorf("failed storage check: %v - storage is probably misconfigured", err)
|
|
|
|
|
}
|
|
|
|
|
return cfg.renewWithIssuer(ctx, issuer, name, interactive)
|
|
|
|
|
return cfg.renewCert(ctx, name, interactive)
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
func (cfg *Config) renewWithIssuer(ctx context.Context, issuer Issuer, name string, interactive bool) error {
|
|
|
|
|
func (cfg *Config) renewCert(ctx context.Context, name string, interactive bool) error {
|
|
|
|
|
log := loggerNamed(cfg.Logger, "renew")
|
|
|
|
|
|
|
|
|
|
if log != nil {
|
|
|
|
|
@ -502,10 +565,10 @@ func (cfg *Config) renewWithIssuer(ctx context.Context, issuer Issuer, name stri
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
// ensure idempotency of the renew operation for this name
|
|
|
|
|
lockKey := cfg.lockKey("cert_acme", name)
|
|
|
|
|
lockKey := cfg.lockKey(certIssueLockOp, name)
|
|
|
|
|
err := acquireLock(ctx, cfg.Storage, lockKey)
|
|
|
|
|
if err != nil {
|
|
|
|
|
return err
|
|
|
|
|
return fmt.Errorf("unable to acquire lock '%s': %v", lockKey, err)
|
|
|
|
|
}
|
|
|
|
|
defer func() {
|
|
|
|
|
if log != nil {
|
|
|
|
|
@ -526,7 +589,7 @@ func (cfg *Config) renewWithIssuer(ctx context.Context, issuer Issuer, name stri
|
|
|
|
|
|
|
|
|
|
f := func(ctx context.Context) error {
|
|
|
|
|
// prepare for renewal (load PEM cert, key, and meta)
|
|
|
|
|
certRes, err := cfg.loadCertResource(name)
|
|
|
|
|
certRes, err := cfg.loadCertResourceAnyIssuer(name)
|
|
|
|
|
if err != nil {
|
|
|
|
|
return err
|
|
|
|
|
}
|
|
|
|
|
@ -556,8 +619,24 @@ func (cfg *Config) renewWithIssuer(ctx context.Context, issuer Issuer, name stri
|
|
|
|
|
return err
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
issuedCert, err := issuer.Issue(ctx, csr)
|
|
|
|
|
// try to obtain from each issuer until we succeed
|
|
|
|
|
var issuedCert *IssuedCertificate
|
|
|
|
|
var issuerUsed Issuer
|
|
|
|
|
for _, issuer := range cfg.Issuers {
|
|
|
|
|
if prechecker, ok := issuer.(PreChecker); ok {
|
|
|
|
|
err = prechecker.PreCheck(ctx, []string{name}, interactive)
|
|
|
|
|
if err != nil {
|
|
|
|
|
continue
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
issuedCert, err = issuer.Issue(ctx, csr)
|
|
|
|
|
if err == nil {
|
|
|
|
|
issuerUsed = issuer
|
|
|
|
|
break
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
if err != nil {
|
|
|
|
|
// TODO: only the error from the last issuer will be returned, oh well?
|
|
|
|
|
return fmt.Errorf("[%s] Renew: %w", name, err)
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
@ -568,7 +647,7 @@ func (cfg *Config) renewWithIssuer(ctx context.Context, issuer Issuer, name stri
|
|
|
|
|
PrivateKeyPEM: certRes.PrivateKeyPEM,
|
|
|
|
|
IssuerData: issuedCert.Metadata,
|
|
|
|
|
}
|
|
|
|
|
err = cfg.saveCertResource(newCertRes)
|
|
|
|
|
err = cfg.saveCertResource(issuerUsed, newCertRes)
|
|
|
|
|
if err != nil {
|
|
|
|
|
return fmt.Errorf("[%s] Renew: saving assets: %v", name, err)
|
|
|
|
|
}
|
|
|
|
|
@ -602,7 +681,12 @@ func (cfg *Config) generateCSR(privateKey crypto.PrivateKey, sans []string) (*x5
|
|
|
|
|
} else if u, err := url.Parse(name); err == nil && strings.Contains(name, "/") {
|
|
|
|
|
csrTemplate.URIs = append(csrTemplate.URIs, u)
|
|
|
|
|
} else {
|
|
|
|
|
csrTemplate.DNSNames = append(csrTemplate.DNSNames, name)
|
|
|
|
|
// convert IDNs to ASCII according to RFC 5280 section 7
|
|
|
|
|
normalizedName, err := idna.ToASCII(name)
|
|
|
|
|
if err != nil {
|
|
|
|
|
return nil, fmt.Errorf("converting identifier '%s' to ASCII: %v", name, err)
|
|
|
|
|
}
|
|
|
|
|
csrTemplate.DNSNames = append(csrTemplate.DNSNames, normalizedName)
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
@ -619,43 +703,45 @@ func (cfg *Config) generateCSR(privateKey crypto.PrivateKey, sans []string) (*x5
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
// RevokeCert revokes the certificate for domain via ACME protocol. It requires
|
|
|
|
|
// that cfg.Issuer is properly configured with the same issuer that issued the
|
|
|
|
|
// that cfg.Issuers is properly configured with the same issuer that issued the
|
|
|
|
|
// certificate being revoked. See RFC 5280 §5.3.1 for reason codes.
|
|
|
|
|
func (cfg *Config) RevokeCert(ctx context.Context, domain string, reason int, interactive bool) error {
|
|
|
|
|
rev := cfg.Revoker
|
|
|
|
|
if rev == nil {
|
|
|
|
|
rev = Default.Revoker
|
|
|
|
|
}
|
|
|
|
|
for i, issuer := range cfg.Issuers {
|
|
|
|
|
issuerKey := issuer.IssuerKey()
|
|
|
|
|
|
|
|
|
|
certRes, err := cfg.loadCertResource(domain)
|
|
|
|
|
if err != nil {
|
|
|
|
|
return err
|
|
|
|
|
}
|
|
|
|
|
rev, ok := issuer.(Revoker)
|
|
|
|
|
if !ok {
|
|
|
|
|
return fmt.Errorf("issuer %d (%s) is not a Revoker", i, issuerKey)
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
issuerKey := cfg.Issuer.IssuerKey()
|
|
|
|
|
certRes, err := cfg.loadCertResource(issuer, domain)
|
|
|
|
|
if err != nil {
|
|
|
|
|
return err
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
if !cfg.Storage.Exists(StorageKeys.SitePrivateKey(issuerKey, domain)) {
|
|
|
|
|
return fmt.Errorf("private key not found for %s", certRes.SANs)
|
|
|
|
|
}
|
|
|
|
|
if !cfg.Storage.Exists(StorageKeys.SitePrivateKey(issuerKey, domain)) {
|
|
|
|
|
return fmt.Errorf("private key not found for %s", certRes.SANs)
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
err = rev.Revoke(ctx, certRes, reason)
|
|
|
|
|
if err != nil {
|
|
|
|
|
return err
|
|
|
|
|
}
|
|
|
|
|
err = rev.Revoke(ctx, certRes, reason)
|
|
|
|
|
if err != nil {
|
|
|
|
|
return fmt.Errorf("issuer %d (%s): %v", i, issuerKey, err)
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
cfg.emit("cert_revoked", domain)
|
|
|
|
|
cfg.emit("cert_revoked", domain)
|
|
|
|
|
|
|
|
|
|
err = cfg.Storage.Delete(StorageKeys.SiteCert(issuerKey, domain))
|
|
|
|
|
if err != nil {
|
|
|
|
|
return fmt.Errorf("certificate revoked, but unable to delete certificate file: %v", err)
|
|
|
|
|
}
|
|
|
|
|
err = cfg.Storage.Delete(StorageKeys.SitePrivateKey(issuerKey, domain))
|
|
|
|
|
if err != nil {
|
|
|
|
|
return fmt.Errorf("certificate revoked, but unable to delete private key: %v", err)
|
|
|
|
|
}
|
|
|
|
|
err = cfg.Storage.Delete(StorageKeys.SiteMeta(issuerKey, domain))
|
|
|
|
|
if err != nil {
|
|
|
|
|
return fmt.Errorf("certificate revoked, but unable to delete certificate metadata: %v", err)
|
|
|
|
|
err = cfg.Storage.Delete(StorageKeys.SiteCert(issuerKey, domain))
|
|
|
|
|
if err != nil {
|
|
|
|
|
return fmt.Errorf("certificate revoked, but unable to delete certificate file: %v", err)
|
|
|
|
|
}
|
|
|
|
|
err = cfg.Storage.Delete(StorageKeys.SitePrivateKey(issuerKey, domain))
|
|
|
|
|
if err != nil {
|
|
|
|
|
return fmt.Errorf("certificate revoked, but unable to delete private key: %v", err)
|
|
|
|
|
}
|
|
|
|
|
err = cfg.Storage.Delete(StorageKeys.SiteMeta(issuerKey, domain))
|
|
|
|
|
if err != nil {
|
|
|
|
|
return fmt.Errorf("certificate revoked, but unable to delete certificate metadata: %v", err)
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
return nil
|
|
|
|
|
@ -692,27 +778,50 @@ func (cfg *Config) TLSConfig() *tls.Config {
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
// getPrecheckedIssuer returns an Issuer with pre-checks
|
|
|
|
|
// completed, if it is also a PreChecker. It also checks
|
|
|
|
|
// that storage is functioning. If a nil Issuer is returned
|
|
|
|
|
// with a nil error, that means to skip this operation
|
|
|
|
|
// (not an error, just a no-op).
|
|
|
|
|
func (cfg *Config) getPrecheckedIssuer(ctx context.Context, names []string, interactive bool) (Issuer, error) {
|
|
|
|
|
// ensure storage is writeable and readable
|
|
|
|
|
// TODO: this is not necessary every time; should only
|
|
|
|
|
// perform check once every so often for each storage,
|
|
|
|
|
// which may require some global state...
|
|
|
|
|
err := cfg.checkStorage()
|
|
|
|
|
if err != nil {
|
|
|
|
|
return nil, fmt.Errorf("failed storage check: %v - storage is probably misconfigured", err)
|
|
|
|
|
}
|
|
|
|
|
if prechecker, ok := cfg.Issuer.(PreChecker); ok {
|
|
|
|
|
err := prechecker.PreCheck(ctx, names, interactive)
|
|
|
|
|
if err != nil {
|
|
|
|
|
return nil, err
|
|
|
|
|
// getChallengeInfo loads the challenge info from either the internal challenge memory
|
|
|
|
|
// or the external storage (implying distributed solving). The second return value
|
|
|
|
|
// indicates whether challenge info was loaded from external storage. If true, the
|
|
|
|
|
// challenge is being solved in a distributed fashion; if false, from internal memory.
|
|
|
|
|
// If no matching challenge information can be found, an error is returned.
|
|
|
|
|
func (cfg *Config) getChallengeInfo(identifier string) (Challenge, bool, error) {
|
|
|
|
|
// first, check if our process initiated this challenge; if so, just return it
|
|
|
|
|
chalData, ok := GetACMEChallenge(identifier)
|
|
|
|
|
if ok {
|
|
|
|
|
return chalData, false, nil
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
// otherwise, perhaps another instance in the cluster initiated it; check
|
|
|
|
|
// the configured storage to retrieve challenge data
|
|
|
|
|
|
|
|
|
|
var chalInfo acme.Challenge
|
|
|
|
|
var chalInfoBytes []byte
|
|
|
|
|
var tokenKey string
|
|
|
|
|
for _, issuer := range cfg.Issuers {
|
|
|
|
|
ds := distributedSolver{
|
|
|
|
|
storage: cfg.Storage,
|
|
|
|
|
storageKeyIssuerPrefix: storageKeyACMECAPrefix(issuer.IssuerKey()),
|
|
|
|
|
}
|
|
|
|
|
tokenKey = ds.challengeTokensKey(identifier)
|
|
|
|
|
var err error
|
|
|
|
|
chalInfoBytes, err = cfg.Storage.Load(tokenKey)
|
|
|
|
|
if err == nil {
|
|
|
|
|
break
|
|
|
|
|
}
|
|
|
|
|
if _, ok := err.(ErrNotExist); ok {
|
|
|
|
|
continue
|
|
|
|
|
}
|
|
|
|
|
return Challenge{}, false, fmt.Errorf("opening distributed challenge token file %s: %v", tokenKey, err)
|
|
|
|
|
}
|
|
|
|
|
if len(chalInfoBytes) == 0 {
|
|
|
|
|
return Challenge{}, false, fmt.Errorf("no information found to solve challenge for identifier: %s", identifier)
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
err := json.Unmarshal(chalInfoBytes, &chalInfo)
|
|
|
|
|
if err != nil {
|
|
|
|
|
return Challenge{}, false, fmt.Errorf("decoding challenge token file %s (corrupted?): %v", tokenKey, err)
|
|
|
|
|
}
|
|
|
|
|
return cfg.Issuer, nil
|
|
|
|
|
|
|
|
|
|
return Challenge{Challenge: chalInfo}, true, nil
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
// checkStorage tests the storage by writing random bytes
|
|
|
|
|
@ -758,8 +867,8 @@ func (cfg *Config) checkStorage() error {
|
|
|
|
|
// associated with cfg's certificate cache has all the
|
|
|
|
|
// resources related to the certificate for domain: the
|
|
|
|
|
// certificate, the private key, and the metadata.
|
|
|
|
|
func (cfg *Config) storageHasCertResources(domain string) bool {
|
|
|
|
|
issuerKey := cfg.Issuer.IssuerKey()
|
|
|
|
|
func (cfg *Config) storageHasCertResources(issuer Issuer, domain string) bool {
|
|
|
|
|
issuerKey := issuer.IssuerKey()
|
|
|
|
|
certKey := StorageKeys.SiteCert(issuerKey, domain)
|
|
|
|
|
keyKey := StorageKeys.SitePrivateKey(issuerKey, domain)
|
|
|
|
|
metaKey := StorageKeys.SiteMeta(issuerKey, domain)
|
|
|
|
|
@ -771,18 +880,19 @@ func (cfg *Config) storageHasCertResources(domain string) bool {
|
|
|
|
|
// lockKey returns a key for a lock that is specific to the operation
|
|
|
|
|
// named op being performed related to domainName and this config's CA.
|
|
|
|
|
func (cfg *Config) lockKey(op, domainName string) string {
|
|
|
|
|
return fmt.Sprintf("%s_%s_%s", op, domainName, cfg.Issuer.IssuerKey())
|
|
|
|
|
return fmt.Sprintf("%s_%s", op, domainName)
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
// managedCertNeedsRenewal returns true if certRes is
|
|
|
|
|
// expiring soon or already expired, or if the process
|
|
|
|
|
// of checking the expiration returned an error.
|
|
|
|
|
// managedCertNeedsRenewal returns true if certRes is expiring soon or already expired,
|
|
|
|
|
// or if the process of decoding the cert and checking its expiration returned an error.
|
|
|
|
|
func (cfg *Config) managedCertNeedsRenewal(certRes CertificateResource) (time.Duration, bool) {
|
|
|
|
|
cert, err := makeCertificate(certRes.CertificatePEM, certRes.PrivateKeyPEM)
|
|
|
|
|
certChain, err := parseCertsFromPEMBundle(certRes.CertificatePEM)
|
|
|
|
|
if err != nil {
|
|
|
|
|
return 0, true
|
|
|
|
|
}
|
|
|
|
|
return time.Until(cert.Leaf.NotAfter), cert.NeedsRenewal(cfg)
|
|
|
|
|
remaining := time.Until(certChain[0].NotAfter)
|
|
|
|
|
needsRenew := currentlyInRenewalWindow(certChain[0].NotBefore, certChain[0].NotAfter, cfg.RenewalWindowRatio)
|
|
|
|
|
return remaining, needsRenew
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
func (cfg *Config) emit(eventName string, data interface{}) {
|
|
|
|
|
@ -792,11 +902,40 @@ func (cfg *Config) emit(eventName string, data interface{}) {
|
|
|
|
|
cfg.OnEvent(eventName, data)
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
func loggerNamed(l *zap.Logger, name string) *zap.Logger {
|
|
|
|
|
if l == nil {
|
|
|
|
|
return nil
|
|
|
|
|
}
|
|
|
|
|
return l.Named(name)
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
// CertificateSelector is a type which can select a certificate to use given multiple choices.
|
|
|
|
|
type CertificateSelector interface {
|
|
|
|
|
SelectCertificate(*tls.ClientHelloInfo, []Certificate) (Certificate, error)
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
// OCSPConfig configures how OCSP is handled.
|
|
|
|
|
type OCSPConfig struct {
|
|
|
|
|
// Disable automatic OCSP stapling; strongly
|
|
|
|
|
// discouraged unless you have a good reason.
|
|
|
|
|
// Disabling this puts clients at greater risk
|
|
|
|
|
// and reduces their privacy.
|
|
|
|
|
DisableStapling bool
|
|
|
|
|
|
|
|
|
|
// A map of OCSP responder domains to replacement
|
|
|
|
|
// domains for querying OCSP servers. Used for
|
|
|
|
|
// overriding the OCSP responder URL that is
|
|
|
|
|
// embedded in certificates. Mapping to an empty
|
|
|
|
|
// URL will disable OCSP from that responder.
|
|
|
|
|
ResponderOverrides map[string]string
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
// certIssueLockOp is the name of the operation used
|
|
|
|
|
// when naming a lock to make it mutually exclusive
|
|
|
|
|
// with other certificate issuance operations for a
|
|
|
|
|
// certain name.
|
|
|
|
|
const certIssueLockOp = "issue_cert"
|
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// Constants for PKIX MustStaple extension.
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var (
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tlsFeatureExtensionOID = asn1.ObjectIdentifier{1, 3, 6, 1, 5, 5, 7, 1, 24}
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6543
3 years ago
committed by
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