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minio/pkg/certs/ca-certs.go

57 lines
1.5 KiB

/*
* MinIO Cloud Storage, (C) 2020 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 certs
import (
"crypto/x509"
"io/ioutil"
"os"
"path"
)
// GetRootCAs - returns all the root CAs into certPool
// at the input certsCADir
func GetRootCAs(certsCAsDir string) (*x509.CertPool, error) {
rootCAs, _ := loadSystemRoots()
if rootCAs == nil {
// In some systems system cert pool is not supported
// or no certificates are present on the
// system - so we create a new cert pool.
rootCAs = x509.NewCertPool()
}
fis, err := ioutil.ReadDir(certsCAsDir)
if err != nil {
if os.IsNotExist(err) || os.IsPermission(err) {
// Return success if CA's directory is missing or permission denied.
err = nil
}
return rootCAs, err
}
// Load all custom CA files.
for _, fi := range fis {
caCert, err := ioutil.ReadFile(path.Join(certsCAsDir, fi.Name()))
if err != nil {
// ignore files which are not readable.
continue
}
rootCAs.AppendCertsFromPEM(caCert)
}
return rootCAs, nil
}