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112 lines
3.1 KiB
Go
112 lines
3.1 KiB
Go
package provisioner
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import (
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"context"
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"crypto/x509"
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"time"
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"github.com/pkg/errors"
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"github.com/smallstep/certificates/errs"
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)
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// ACME is the acme provisioner type, an entity that can authorize the ACME
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// provisioning flow.
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type ACME struct {
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*base
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ID string `json:"-"`
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Type string `json:"type"`
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Name string `json:"name"`
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ForceCN bool `json:"forceCN,omitempty"`
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Claims *Claims `json:"claims,omitempty"`
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Options *Options `json:"options,omitempty"`
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claimer *Claimer
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}
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// GetID returns the provisioner unique identifier.
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func (p ACME) GetID() string {
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if p.ID != "" {
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return p.ID
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}
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return p.GetIDForToken()
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}
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// GetIDForToken returns an identifier that will be used to load the provisioner
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// from a token.
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func (p *ACME) GetIDForToken() string {
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return "acme/" + p.Name
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}
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// GetTokenID returns the identifier of the token.
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func (p *ACME) GetTokenID(ott string) (string, error) {
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return "", errors.New("acme provisioner does not implement GetTokenID")
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}
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// GetName returns the name of the provisioner.
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func (p *ACME) GetName() string {
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return p.Name
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}
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// GetType returns the type of provisioner.
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func (p *ACME) GetType() Type {
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return TypeACME
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}
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// GetEncryptedKey returns the base provisioner encrypted key if it's defined.
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func (p *ACME) GetEncryptedKey() (string, string, bool) {
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return "", "", false
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}
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// GetOptions returns the configured provisioner options.
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func (p *ACME) GetOptions() *Options {
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return p.Options
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}
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// DefaultTLSCertDuration returns the default TLS cert duration enforced by
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// the provisioner.
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func (p *ACME) DefaultTLSCertDuration() time.Duration {
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return p.claimer.DefaultTLSCertDuration()
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}
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// Init initializes and validates the fields of a JWK type.
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func (p *ACME) Init(config Config) (err error) {
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switch {
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case p.Type == "":
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return errors.New("provisioner type cannot be empty")
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case p.Name == "":
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return errors.New("provisioner name cannot be empty")
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}
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// Update claims with global ones
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if p.claimer, err = NewClaimer(p.Claims, config.Claims); err != nil {
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return err
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}
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return err
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}
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// AuthorizeSign does not do any validation, because all validation is handled
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// in the ACME protocol. This method returns a list of modifiers / constraints
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// on the resulting certificate.
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func (p *ACME) AuthorizeSign(ctx context.Context, token string) ([]SignOption, error) {
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return []SignOption{
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// modifiers / withOptions
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newProvisionerExtensionOption(TypeACME, p.Name, ""),
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newForceCNOption(p.ForceCN),
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profileDefaultDuration(p.claimer.DefaultTLSCertDuration()),
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// validators
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defaultPublicKeyValidator{},
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newValidityValidator(p.claimer.MinTLSCertDuration(), p.claimer.MaxTLSCertDuration()),
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}, nil
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}
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// AuthorizeRenew returns an error if the renewal is disabled.
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// NOTE: This method does not actually validate the certificate or check it's
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// revocation status. Just confirms that the provisioner that created the
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// certificate was configured to allow renewals.
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func (p *ACME) AuthorizeRenew(ctx context.Context, cert *x509.Certificate) error {
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if p.claimer.IsDisableRenewal() {
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return errs.Unauthorized("acme.AuthorizeRenew; renew is disabled for acme provisioner '%s'", p.GetName())
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}
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return nil
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}
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