84 lines
2.4 KiB
Go
84 lines
2.4 KiB
Go
//go:build go1.7 || go1.8
|
|
// +build go1.7 go1.8
|
|
|
|
/*
|
|
* MinIO Go Library for Amazon S3 Compatible Cloud Storage
|
|
* Copyright 2017-2018 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 minio
|
|
|
|
import (
|
|
"crypto/tls"
|
|
"crypto/x509"
|
|
"io/ioutil"
|
|
"net"
|
|
"net/http"
|
|
"os"
|
|
"time"
|
|
)
|
|
|
|
// mustGetSystemCertPool - return system CAs or empty pool in case of error (or windows)
|
|
func mustGetSystemCertPool() *x509.CertPool {
|
|
pool, err := x509.SystemCertPool()
|
|
if err != nil {
|
|
return x509.NewCertPool()
|
|
}
|
|
return pool
|
|
}
|
|
|
|
// DefaultTransport - this default transport is similar to
|
|
// http.DefaultTransport but with additional param DisableCompression
|
|
// is set to true to avoid decompressing content with 'gzip' encoding.
|
|
var DefaultTransport = func(secure bool) (*http.Transport, error) {
|
|
tr := &http.Transport{
|
|
Proxy: http.ProxyFromEnvironment,
|
|
DialContext: (&net.Dialer{
|
|
Timeout: 30 * time.Second,
|
|
KeepAlive: 30 * time.Second,
|
|
}).DialContext,
|
|
MaxIdleConns: 256,
|
|
MaxIdleConnsPerHost: 16,
|
|
ResponseHeaderTimeout: time.Minute,
|
|
IdleConnTimeout: time.Minute,
|
|
TLSHandshakeTimeout: 10 * time.Second,
|
|
ExpectContinueTimeout: 10 * time.Second,
|
|
// Set this value so that the underlying transport round-tripper
|
|
// doesn't try to auto decode the body of objects with
|
|
// content-encoding set to `gzip`.
|
|
//
|
|
// Refer:
|
|
// https://golang.org/src/net/http/transport.go?h=roundTrip#L1843
|
|
DisableCompression: true,
|
|
}
|
|
|
|
if secure {
|
|
tr.TLSClientConfig = &tls.Config{
|
|
// Can't use SSLv3 because of POODLE and BEAST
|
|
// Can't use TLSv1.0 because of POODLE and BEAST using CBC cipher
|
|
// Can't use TLSv1.1 because of RC4 cipher usage
|
|
MinVersion: tls.VersionTLS12,
|
|
}
|
|
if f := os.Getenv("SSL_CERT_FILE"); f != "" {
|
|
rootCAs := mustGetSystemCertPool()
|
|
data, err := ioutil.ReadFile(f)
|
|
if err == nil {
|
|
rootCAs.AppendCertsFromPEM(data)
|
|
}
|
|
tr.TLSClientConfig.RootCAs = rootCAs
|
|
}
|
|
}
|
|
return tr, nil
|
|
}
|