| // Copyright 2016 The etcd Authors |
| // |
| // Licensed under the Apache License, Version 2.0 (the "License"); |
| // you may not use this file except in compliance with the License. |
| // You may obtain a copy of the License at |
| // |
| // http://www.apache.org/licenses/LICENSE-2.0 |
| // |
| // Unless required by applicable law or agreed to in writing, software |
| // distributed under the License is distributed on an "AS IS" BASIS, |
| // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| // See the License for the specific language governing permissions and |
| // limitations under the License. |
| |
| package tlsutil |
| |
| import ( |
| "crypto/tls" |
| "crypto/x509" |
| "encoding/pem" |
| "io/ioutil" |
| ) |
| |
| // NewCertPool creates x509 certPool with provided CA files. |
| func NewCertPool(CAFiles []string) (*x509.CertPool, error) { |
| certPool := x509.NewCertPool() |
| |
| for _, CAFile := range CAFiles { |
| pemByte, err := ioutil.ReadFile(CAFile) |
| if err != nil { |
| return nil, err |
| } |
| |
| for { |
| var block *pem.Block |
| block, pemByte = pem.Decode(pemByte) |
| if block == nil { |
| break |
| } |
| cert, err := x509.ParseCertificate(block.Bytes) |
| if err != nil { |
| return nil, err |
| } |
| |
| certPool.AddCert(cert) |
| } |
| } |
| |
| return certPool, nil |
| } |
| |
| // NewCert generates TLS cert by using the given cert,key and parse function. |
| func NewCert(certfile, keyfile string, parseFunc func([]byte, []byte) (tls.Certificate, error)) (*tls.Certificate, error) { |
| cert, err := ioutil.ReadFile(certfile) |
| if err != nil { |
| return nil, err |
| } |
| |
| key, err := ioutil.ReadFile(keyfile) |
| if err != nil { |
| return nil, err |
| } |
| |
| if parseFunc == nil { |
| parseFunc = tls.X509KeyPair |
| } |
| |
| tlsCert, err := parseFunc(cert, key) |
| if err != nil { |
| return nil, err |
| } |
| return &tlsCert, nil |
| } |