mirror of https://github.com/k3s-io/k3s
74 lines
1.7 KiB
Go
74 lines
1.7 KiB
Go
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// Copyright 2016 The etcd Authors
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//
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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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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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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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package tlsutil
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import (
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"crypto/tls"
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"crypto/x509"
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"encoding/pem"
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"io/ioutil"
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)
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// NewCertPool creates x509 certPool with provided CA files.
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func NewCertPool(CAFiles []string) (*x509.CertPool, error) {
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certPool := x509.NewCertPool()
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for _, CAFile := range CAFiles {
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pemByte, err := ioutil.ReadFile(CAFile)
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if err != nil {
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return nil, err
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}
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for {
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var block *pem.Block
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block, pemByte = pem.Decode(pemByte)
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if block == nil {
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break
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}
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cert, err := x509.ParseCertificate(block.Bytes)
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if err != nil {
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return nil, err
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}
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certPool.AddCert(cert)
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}
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}
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return certPool, nil
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}
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// NewCert generates TLS cert by using the given cert,key and parse function.
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func NewCert(certfile, keyfile string, parseFunc func([]byte, []byte) (tls.Certificate, error)) (*tls.Certificate, error) {
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cert, err := ioutil.ReadFile(certfile)
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if err != nil {
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return nil, err
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}
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key, err := ioutil.ReadFile(keyfile)
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if err != nil {
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return nil, err
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}
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if parseFunc == nil {
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parseFunc = tls.X509KeyPair
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}
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tlsCert, err := parseFunc(cert, key)
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if err != nil {
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return nil, err
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}
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return &tlsCert, nil
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}
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