k8s.io/kubernetes@v1.29.3/pkg/apis/certificates/v1/helpers.go (about)

     1  /*
     2  Copyright 2020 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 v1
    18  
    19  import (
    20  	"crypto/x509"
    21  	"encoding/pem"
    22  	"errors"
    23  )
    24  
    25  // ParseCSR decodes a PEM encoded CSR
    26  func ParseCSR(pemBytes []byte) (*x509.CertificateRequest, error) {
    27  	// extract PEM from request object
    28  	block, _ := pem.Decode(pemBytes)
    29  	if block == nil || block.Type != "CERTIFICATE REQUEST" {
    30  		return nil, errors.New("PEM block type must be CERTIFICATE REQUEST")
    31  	}
    32  	csr, err := x509.ParseCertificateRequest(block.Bytes)
    33  	if err != nil {
    34  		return nil, err
    35  	}
    36  	return csr, nil
    37  }