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138 lines
3.7 KiB
138 lines
3.7 KiB
/*
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* Minio Cloud Storage, (C) 2015, 2016 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/x509"
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"encoding/pem"
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"errors"
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"io/ioutil"
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"path/filepath"
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)
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// getCertsPath get certs path.
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func getCertsPath() string {
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return filepath.Join(getConfigDir(), globalMinioCertsDir)
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}
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// getCertFile must get cert file.
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func getCertFile() string {
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return filepath.Join(getCertsPath(), globalMinioCertFile)
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}
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// getKeyFile must get key file.
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func getKeyFile() string {
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return filepath.Join(getCertsPath(), globalMinioKeyFile)
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}
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// createCertsPath create certs path.
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func createCertsPath() error {
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rootCAsPath := filepath.Join(getCertsPath(), globalMinioCertsCADir)
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return mkdirAll(rootCAsPath, 0700)
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}
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// getCAFiles must get the list of the CA certificates stored in minio config dir
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func getCAFiles() (caCerts []string) {
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CAsDir := filepath.Join(getCertsPath(), globalMinioCertsCADir)
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if caFiles, err := ioutil.ReadDir(CAsDir); err == nil {
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// Ignore any error.
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for _, cert := range caFiles {
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caCerts = append(caCerts, filepath.Join(CAsDir, cert.Name()))
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}
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}
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return caCerts
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}
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// getSystemCertPool returns empty cert pool in case of error (windows)
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func getSystemCertPool() *x509.CertPool {
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pool, err := x509.SystemCertPool()
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if err != nil {
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pool = x509.NewCertPool()
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}
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return pool
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}
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// isCertFileExists verifies if cert file exists, returns true if
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// found, false otherwise.
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func isCertFileExists() bool {
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return isFile(getCertFile())
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}
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// isKeyFileExists verifies if key file exists, returns true if found,
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// false otherwise.
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func isKeyFileExists() bool {
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return isFile(getKeyFile())
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}
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// isSSL - returns true with both cert and key exists.
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func isSSL() bool {
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return isCertFileExists() && isKeyFileExists()
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}
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// Reads certificated file and returns a list of parsed certificates.
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func readCertificateChain() ([]*x509.Certificate, error) {
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bytes, err := ioutil.ReadFile(getCertFile())
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if err != nil {
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return nil, err
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}
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// Proceed to parse the certificates.
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return parseCertificateChain(bytes)
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}
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// Parses certificate chain, returns a list of parsed certificates.
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func parseCertificateChain(bytes []byte) ([]*x509.Certificate, error) {
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var certs []*x509.Certificate
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var block *pem.Block
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current := bytes
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// Parse all certs in the chain.
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for len(current) > 0 {
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block, current = pem.Decode(current)
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if block == nil {
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return nil, errors.New("Could not PEM block")
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}
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// Parse the decoded certificate.
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cert, err := x509.ParseCertificate(block.Bytes)
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if err != nil {
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return nil, err
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}
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certs = append(certs, cert)
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}
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return certs, nil
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}
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// loadRootCAs fetches CA files provided in minio config and adds them to globalRootCAs
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// Currently under Windows, there is no way to load system + user CAs at the same time
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func loadRootCAs() {
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caFiles := getCAFiles()
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if len(caFiles) == 0 {
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return
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}
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// Get system cert pool, and empty cert pool under Windows because it is not supported
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globalRootCAs = getSystemCertPool()
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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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fatalIf(err, "Unable to load a CA file")
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}
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globalRootCAs.AppendCertsFromPEM(caCert)
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}
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}
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