1 /* 2 Copyright 2016 The Kubernetes Authors. 3 4 Licensed under the Apache License, Version 2.0 (the "License"); 5 you may not use this file except in compliance with the License. 6 You may obtain a copy of the License at 7 8 http://www.apache.org/licenses/LICENSE-2.0 9 10 Unless required by applicable law or agreed to in writing, software 11 distributed under the License is distributed on an "AS IS" BASIS, 12 WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 See the License for the specific language governing permissions and 14 limitations under the License. 15 */ 16 17 package certificate 18 19 import ( 20 "crypto/x509" 21 "encoding/pem" 22 "errors" 23 ) 24 25 // TODO(yue9944882): Remove this helper package once it's copied to k/api 26 27 // ParseCSR extracts the CSR from the API object and decodes it. 28 func ParseCSR(pemBytes []byte) (*x509.CertificateRequest, error) { 29 block, _ := pem.Decode(pemBytes) 30 if block == nil || block.Type != "CERTIFICATE REQUEST" { 31 return nil, errors.New("PEM block type must be CERTIFICATE REQUEST") 32 } 33 csr, err := x509.ParseCertificateRequest(block.Bytes) 34 if err != nil { 35 return nil, err 36 } 37 return csr, nil 38 } 39