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69 lines
2.3 KiB
Go
69 lines
2.3 KiB
Go
/*
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Copyright 2016 The Kubernetes Authors.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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package validation
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import (
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"fmt"
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"k8s.io/apimachinery/pkg/util/validation/field"
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"k8s.io/kubernetes/pkg/apis/certificates"
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apivalidation "k8s.io/kubernetes/pkg/apis/core/validation"
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)
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// validateCSR validates the signature and formatting of a base64-wrapped,
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// PEM-encoded PKCS#10 certificate signing request. If this is invalid, we must
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// not accept the CSR for further processing.
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func validateCSR(obj *certificates.CertificateSigningRequest) error {
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csr, err := certificates.ParseCSR(obj)
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if err != nil {
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return err
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}
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// check that the signature is valid
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err = csr.CheckSignature()
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if err != nil {
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return err
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}
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return nil
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}
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// We don't care what you call your certificate requests.
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func ValidateCertificateRequestName(name string, prefix bool) []string {
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return nil
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}
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func ValidateCertificateSigningRequest(csr *certificates.CertificateSigningRequest) field.ErrorList {
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isNamespaced := false
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allErrs := apivalidation.ValidateObjectMeta(&csr.ObjectMeta, isNamespaced, ValidateCertificateRequestName, field.NewPath("metadata"))
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err := validateCSR(csr)
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specPath := field.NewPath("spec")
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if err != nil {
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allErrs = append(allErrs, field.Invalid(specPath.Child("request"), csr.Spec.Request, fmt.Sprintf("%v", err)))
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}
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if len(csr.Spec.Usages) == 0 {
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allErrs = append(allErrs, field.Required(specPath.Child("usages"), "usages must be provided"))
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}
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return allErrs
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}
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func ValidateCertificateSigningRequestUpdate(newCSR, oldCSR *certificates.CertificateSigningRequest) field.ErrorList {
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validationErrorList := ValidateCertificateSigningRequest(newCSR)
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metaUpdateErrorList := apivalidation.ValidateObjectMetaUpdate(&newCSR.ObjectMeta, &oldCSR.ObjectMeta, field.NewPath("metadata"))
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return append(validationErrorList, metaUpdateErrorList...)
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}
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