c3dd7c1f6c
* Refactor HTTP server to address bugs * Remove unnecessary goroutine to start multiple TCP listeners. * HTTP server waits for shutdown to maximum of Server.ShutdownTimeout than per serverShutdownPoll. * Handles new connection errors properly. * Handles read and write timeout properly. * Handles error on start of HTTP server properly by exiting minio process. Fixes #4494 #4476 & fixed review comments
116 lines
2.9 KiB
Go
116 lines
2.9 KiB
Go
/*
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* Minio Cloud Storage, (C) 2015, 2016, 2017 Minio, Inc.
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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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*/
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package cmd
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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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"fmt"
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"io/ioutil"
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"path/filepath"
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)
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func parsePublicCertFile(certFile string) (x509Certs []*x509.Certificate, err error) {
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// Read certificate file.
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var data []byte
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if data, err = ioutil.ReadFile(certFile); err != nil {
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return nil, err
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}
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// Parse all certs in the chain.
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current := data
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for len(current) > 0 {
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var pemBlock *pem.Block
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if pemBlock, current = pem.Decode(current); pemBlock == nil {
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return nil, fmt.Errorf("Could not read PEM block from file %s", certFile)
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}
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var x509Cert *x509.Certificate
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if x509Cert, err = x509.ParseCertificate(pemBlock.Bytes); err != nil {
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return nil, err
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}
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x509Certs = append(x509Certs, x509Cert)
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}
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if len(x509Certs) == 0 {
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return nil, fmt.Errorf("Empty public certificate file %s", certFile)
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}
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return x509Certs, nil
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}
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func getRootCAs(certsCAsDir string) (*x509.CertPool, error) {
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// Get all CA file names.
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var caFiles []string
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fis, err := ioutil.ReadDir(certsCAsDir)
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if err != nil {
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return nil, err
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}
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for _, fi := range fis {
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caFiles = append(caFiles, filepath.Join(certsCAsDir, fi.Name()))
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}
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if len(caFiles) == 0 {
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return nil, nil
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}
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rootCAs, err := x509.SystemCertPool()
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if err != nil {
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// In some systems like Windows, system cert pool is not supported.
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// Hence we create a new cert pool.
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rootCAs = x509.NewCertPool()
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}
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// Load custom root CAs for client requests
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for _, caFile := range caFiles {
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caCert, 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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rootCAs.AppendCertsFromPEM(caCert)
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}
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return rootCAs, nil
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}
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func getSSLConfig() (x509Certs []*x509.Certificate, rootCAs *x509.CertPool, tlsCert *tls.Certificate, secureConn bool, err error) {
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if !(isFile(getPublicCertFile()) && isFile(getPrivateKeyFile())) {
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return nil, nil, nil, false, nil
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}
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if x509Certs, err = parsePublicCertFile(getPublicCertFile()); err != nil {
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return nil, nil, nil, false, err
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}
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var cert tls.Certificate
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if cert, err = tls.LoadX509KeyPair(getPublicCertFile(), getPrivateKeyFile()); err != nil {
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return nil, nil, nil, false, err
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}
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tlsCert = &cert
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if rootCAs, err = getRootCAs(getCADir()); err != nil {
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return nil, nil, nil, false, err
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}
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secureConn = true
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return x509Certs, rootCAs, tlsCert, secureConn, nil
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}
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