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Copy pathcerts.go
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108 lines (89 loc) · 2.65 KB
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/*
* Minio Cloud Storage, (C) 2015, 2016, 2017 Minio, Inc.
*
* 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 cmd
import (
"crypto/x509"
"encoding/pem"
"fmt"
"io/ioutil"
"path/filepath"
)
func parsePublicCertFile(certFile string) (certs []*x509.Certificate, err error) {
var bytes []byte
if bytes, err = ioutil.ReadFile(certFile); err != nil {
return certs, err
}
// Parse all certs in the chain.
var block *pem.Block
var cert *x509.Certificate
current := bytes
for len(current) > 0 {
if block, current = pem.Decode(current); block == nil {
err = fmt.Errorf("Could not read PEM block from file %s", certFile)
return certs, err
}
if cert, err = x509.ParseCertificate(block.Bytes); err != nil {
return certs, err
}
certs = append(certs, cert)
}
if len(certs) == 0 {
err = fmt.Errorf("Empty public certificate file %s", certFile)
}
return certs, err
}
func getRootCAs(certsCAsDir string) (*x509.CertPool, error) {
// Get all CA file names.
var caFiles []string
fis, err := ioutil.ReadDir(certsCAsDir)
if err != nil {
return nil, err
}
for _, fi := range fis {
caFiles = append(caFiles, filepath.Join(certsCAsDir, fi.Name()))
}
if len(caFiles) == 0 {
return nil, nil
}
rootCAs, err := x509.SystemCertPool()
if err != nil {
// In some systems like Windows, system cert pool is not supported.
// Hence we create a new cert pool.
rootCAs = x509.NewCertPool()
}
// Load custom root CAs for client requests
for _, caFile := range caFiles {
caCert, err := ioutil.ReadFile(caFile)
if err != nil {
return rootCAs, err
}
rootCAs.AppendCertsFromPEM(caCert)
}
return rootCAs, nil
}
func getSSLConfig() (publicCerts []*x509.Certificate, rootCAs *x509.CertPool, secureConn bool, err error) {
if !(isFile(getPublicCertFile()) && isFile(getPrivateKeyFile())) {
return publicCerts, rootCAs, secureConn, err
}
if publicCerts, err = parsePublicCertFile(getPublicCertFile()); err != nil {
return publicCerts, rootCAs, secureConn, err
}
if rootCAs, err = getRootCAs(getCADir()); err != nil {
return publicCerts, rootCAs, secureConn, err
}
secureConn = true
return publicCerts, rootCAs, secureConn, err
}