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Disallow creation of EAB keys with non-unique references

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Herman Slatman 2021-09-17 17:25:19 +02:00
parent 9c0020352b
commit 746c5c9fd9
No known key found for this signature in database
GPG key ID: F4D8A44EA0A75A4F
2 changed files with 20 additions and 4 deletions
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3
acme/db/nosql/account.go
View file

@ -282,6 +282,9 @@ func (db *DB) GetExternalAccountKeys(ctx context.Context, provisionerName string
// GetExternalAccountKeyByReference retrieves an External Account Binding key with unique reference
func (db *DB) GetExternalAccountKeyByReference(ctx context.Context, provisionerName string, reference string) (*acme.ExternalAccountKey, error) {
if reference == "" {
return nil, nil
}
k, err := db.db.Get(externalAccountKeysByReferenceTable, []byte(reference))
if nosql.IsErrNotFound(err) {
return nil, errors.Errorf("ACME EAB key for reference %s not found", reference)

21
authority/admin/api/acme.go
View file

@ -78,20 +78,33 @@ func (h *Handler) CreateExternalAccountKey(w http.ResponseWriter, r *http.Reques
return
}
eabEnabled, err := h.provisionerHasEABEnabled(r.Context(), body.Provisioner)
provisioner := body.Provisioner
reference := body.Reference
eabEnabled, err := h.provisionerHasEABEnabled(r.Context(), provisioner)
if err != nil {
api.WriteError(w, err)
return
}
if !eabEnabled {
api.WriteError(w, admin.NewError(admin.ErrorBadRequestType, "ACME EAB not enabled for provisioner %s", body.Provisioner))
api.WriteError(w, admin.NewError(admin.ErrorBadRequestType, "ACME EAB not enabled for provisioner %s", provisioner))
return
}
eak, err := h.acmeDB.CreateExternalAccountKey(r.Context(), body.Provisioner, body.Reference)
if reference != "" {
k, err := h.acmeDB.GetExternalAccountKeyByReference(r.Context(), provisioner, reference)
if err == nil || k != nil {
err := admin.NewError(admin.ErrorBadRequestType, "an ACME EAB key for provisioner %s with reference %s already exists", provisioner, reference)
err.Status = 409
api.WriteError(w, err)
return
}
}
eak, err := h.acmeDB.CreateExternalAccountKey(r.Context(), provisioner, reference)
if err != nil {
api.WriteError(w, admin.WrapErrorISE(err, "error creating external account key %s for provisioner %s", body.Reference, body.Provisioner))
api.WriteError(w, admin.WrapErrorISE(err, "error creating ACME EAB key for provisioner %s and reference %s", provisioner, reference))
return
}