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tls.go
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tls.go
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// Copyright 2018 Bull S.A.S. Atos Technologies - Bull, Rue Jean Jaures, B.P.68, 78340, Les Clayes-sous-Bois, France.
//
// 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 rest
import (
"net"
"crypto/tls"
"github.com/hashicorp/go-rootcerts"
"github.com/pkg/errors"
"github.com/ystia/yorc/config"
)
func wrapListenerTLS(listener net.Listener, cfg config.Configuration) (net.Listener, error) {
cert, err := tls.LoadX509KeyPair(cfg.CertFile, cfg.KeyFile)
if err != nil {
return nil, errors.Wrap(err, "Failed to load TLS certificates")
}
tlsConf := &tls.Config{
Certificates: []tls.Certificate{cert},
}
if cfg.SSLVerify {
if cfg.CAFile == "" && cfg.CAPath == "" {
return nil, errors.New("SSL verify enabled but no CA provided")
}
cfg := &rootcerts.Config{
CAFile: cfg.CAFile,
CAPath: cfg.CAPath,
}
pool, err := rootcerts.LoadCACerts(cfg)
if err != nil {
return nil, errors.Wrap(err, "Failed to load CA cert(s)")
}
tlsConf.ClientCAs = pool
tlsConf.ClientAuth = tls.RequireAndVerifyClientCert
tlsConf.BuildNameToCertificate()
}
return tls.NewListener(listener, tlsConf), nil
}