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Return always http errors in sign options.

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This commit is contained in:
Mariano Cano 2021-11-23 18:32:33 -08:00
parent a33709ce8d
commit 507a272b4d
1 changed files with 32 additions and 29 deletions
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61
authority/provisioner/sign_options.go
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@ -9,12 +9,14 @@ import (
"encoding/asn1"
"encoding/json"
"net"
"net/http"
"net/url"
"reflect"
"time"
"github.com/pkg/errors"
"github.com/smallstep/certificates/errs"
"go.step.sm/crypto/keyutil"
"go.step.sm/crypto/x509util"
)
@ -83,19 +85,19 @@ type emailOnlyIdentity string
func (e emailOnlyIdentity) Valid(req *x509.CertificateRequest) error {
switch {
case len(req.DNSNames) > 0:
return errors.New("certificate request cannot contain DNS names")
return errs.BadRequest("certificate request cannot contain DNS names")
case len(req.IPAddresses) > 0:
return errors.New("certificate request cannot contain IP addresses")
return errs.BadRequest("certificate request cannot contain IP addresses")
case len(req.URIs) > 0:
return errors.New("certificate request cannot contain URIs")
return errs.BadRequest("certificate request cannot contain URIs")
case len(req.EmailAddresses) == 0:
return errors.New("certificate request does not contain any email address")
return errs.BadRequest("certificate request does not contain any email address")
case len(req.EmailAddresses) > 1:
return errors.New("certificate request contains too many email addresses")
return errs.BadRequest("certificate request contains too many email addresses")
case req.EmailAddresses[0] == "":
return errors.New("certificate request cannot contain an empty email address")
return errs.BadRequest("certificate request cannot contain an empty email address")
case req.EmailAddresses[0] != string(e):
return errors.Errorf("certificate request does not contain the valid email address, got %s, want %s", req.EmailAddresses[0], e)
return errs.BadRequest("certificate request does not contain the valid email address - got %s, want %s", req.EmailAddresses[0], e)
default:
return nil
}
@ -108,12 +110,13 @@ type defaultPublicKeyValidator struct{}
func (v defaultPublicKeyValidator) Valid(req *x509.CertificateRequest) error {
switch k := req.PublicKey.(type) {
case *rsa.PublicKey:
if k.Size() < 256 {
return errors.New("rsa key in CSR must be at least 2048 bits (256 bytes)")
if k.Size() < keyutil.MinRSAKeyBytes {
return errs.Forbidden("certificate request RSA key must be at least %d bits (%d bytes)",
8*keyutil.MinRSAKeyBytes, keyutil.MinRSAKeyBytes)
}
case *ecdsa.PublicKey, ed25519.PublicKey:
default:
return errors.Errorf("unrecognized public key of type '%T' in CSR", k)
return errs.BadRequest("certificate request key of type '%T' is not supported", k)
}
return nil
}
@ -139,11 +142,12 @@ func (v publicKeyMinimumLengthValidator) Valid(req *x509.CertificateRequest) err
case *rsa.PublicKey:
minimumLengthInBytes := v.length / 8
if k.Size() < minimumLengthInBytes {
return errors.Errorf("rsa key in CSR must be at least %d bits (%d bytes)", v.length, minimumLengthInBytes)
return errs.Forbidden("certificate request RSA key must be at least %d bits (%d bytes)",
v.length, minimumLengthInBytes)
}
case *ecdsa.PublicKey, ed25519.PublicKey:
default:
return errors.Errorf("unrecognized public key of type '%T' in CSR", k)
return errs.BadRequest("certificate request key of type '%T' is not supported", k)
}
return nil
}
@ -158,7 +162,7 @@ func (v commonNameValidator) Valid(req *x509.CertificateRequest) error {
return nil
}
if req.Subject.CommonName != string(v) {
return errors.Errorf("certificate request does not contain the valid common name; requested common name = %s, token subject = %s", req.Subject.CommonName, v)
return errs.BadRequest("certificate request does not contain the valid common name - got %s, want %s", req.Subject.CommonName, v)
}
return nil
}
@ -176,7 +180,7 @@ func (v commonNameSliceValidator) Valid(req *x509.CertificateRequest) error {
return nil
}
}
return errors.Errorf("certificate request does not contain the valid common name, got %s, want %s", req.Subject.CommonName, v)
return errs.BadRequest("certificate request does not contain the valid common name - got %s, want %s", req.Subject.CommonName, v)
}
// dnsNamesValidator validates the DNS names SAN of a certificate request.
@ -197,7 +201,7 @@ func (v dnsNamesValidator) Valid(req *x509.CertificateRequest) error {
got[s] = true
}
if !reflect.DeepEqual(want, got) {
return errors.Errorf("certificate request does not contain the valid DNS names - got %v, want %v", req.DNSNames, v)
return errs.BadRequest("certificate request does not contain the valid DNS names - got %v, want %v", req.DNSNames, v)
}
return nil
}
@ -220,7 +224,7 @@ func (v ipAddressesValidator) Valid(req *x509.CertificateRequest) error {
got[ip.String()] = true
}
if !reflect.DeepEqual(want, got) {
return errors.Errorf("IP Addresses claim failed - got %v, want %v", req.IPAddresses, v)
return errs.BadRequest("certificate request does not contain the valid IP addresses - got %v, want %v", req.IPAddresses, v)
}
return nil
}
@ -243,7 +247,7 @@ func (v emailAddressesValidator) Valid(req *x509.CertificateRequest) error {
got[s] = true
}
if !reflect.DeepEqual(want, got) {
return errors.Errorf("certificate request does not contain the valid Email Addresses - got %v, want %v", req.EmailAddresses, v)
return errs.BadRequest("certificate request does not contain the valid email addresses - got %v, want %v", req.EmailAddresses, v)
}
return nil
}
@ -266,7 +270,7 @@ func (v urisValidator) Valid(req *x509.CertificateRequest) error {
got[u.String()] = true
}
if !reflect.DeepEqual(want, got) {
return errors.Errorf("URIs claim failed - got %v, want %v", req.URIs, v)
return errs.BadRequest("certificate request does not contain the valid URIs - got %v, want %v", req.URIs, v)
}
return nil
}
@ -334,15 +338,15 @@ func (v profileLimitDuration) Modify(cert *x509.Certificate, so SignOptions) err
backdate = -1 * so.Backdate
}
if notBefore.Before(v.notBefore) {
return errors.Errorf("requested certificate notBefore (%s) is before "+
"the active validity window of the provisioning credential (%s)",
return errs.Forbidden(
"requested certificate notBefore (%s) is before the active validity window of the provisioning credential (%s)",
notBefore, v.notBefore)
}
notAfter := so.NotAfter.RelativeTime(notBefore)
if notAfter.After(v.notAfter) {
return errors.Errorf("requested certificate notAfter (%s) is after "+
"the expiration of the provisioning credential (%s)",
return errs.Forbidden(
"requested certificate notAfter (%s) is after the expiration of the provisioning credential (%s)",
notAfter, v.notAfter)
}
if notAfter.IsZero() {
@ -422,16 +426,15 @@ func newForceCNOption(forceCN bool) *forceCNOption {
func (o *forceCNOption) Modify(cert *x509.Certificate, _ SignOptions) error {
if !o.ForceCN {
// Forcing CN is disabled, do nothing to certificate
return nil
}
// Force the common name to be the first DNS if not provided.
if cert.Subject.CommonName == "" {
if len(cert.DNSNames) > 0 {
cert.Subject.CommonName = cert.DNSNames[0]
} else {
return errors.New("Cannot force CN, DNSNames is empty")
if len(cert.DNSNames) == 0 {
return errs.Forbidden("cannot force common name, DNS names is empty")
}
cert.Subject.CommonName = cert.DNSNames[0]
}
return nil
@ -456,7 +459,7 @@ func newProvisionerExtensionOption(typ Type, name, credentialID string, keyValue
func (o *provisionerExtensionOption) Modify(cert *x509.Certificate, _ SignOptions) error {
ext, err := createProvisionerExtension(o.Type, o.Name, o.CredentialID, o.KeyValuePairs...)
if err != nil {
return err
return errs.NewError(http.StatusInternalServerError, err, "error creating certificate")
}
// Prepend the provisioner extension. In the auth.Sign code we will
// force the resulting certificate to only have one extension, the
@ -477,7 +480,7 @@ func createProvisionerExtension(typ int, name, credentialID string, keyValuePair
KeyValuePairs: keyValuePairs,
})
if err != nil {
return pkix.Extension{}, errors.Wrapf(err, "error marshaling provisioner extension")
return pkix.Extension{}, errors.Wrap(err, "error marshaling provisioner extension")
}
return pkix.Extension{
Id: stepOIDProvisioner,