OP#792 initial commit after fork

cmd/config-dir.go

@@ -0,0 +1,108 @@
+// Copyright (c) 2015-2021 MinIO, Inc.
+//
+// This file is part of MinIO Object Storage stack
+//
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU Affero General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// This program is distributed in the hope that it will be useful
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU Affero General Public License for more details.
+//
+// You should have received a copy of the GNU Affero General Public License
+// along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+package cmd
+
+import (
+	"os"
+	"path/filepath"
+
+	homedir "github.com/mitchellh/go-homedir"
+)
+
+const (
+	// Default minio configuration directory where below configuration files/directories are stored.
+	defaultMinioConfigDir = ".minio"
+
+	// Directory contains below files/directories for HTTPS configuration.
+	certsDir = "certs"
+
+	// Directory contains all CA certificates other than system defaults for HTTPS.
+	certsCADir = "CAs"
+
+	// Public certificate file for HTTPS.
+	publicCertFile = "public.crt"
+
+	// Private key file for HTTPS.
+	privateKeyFile = "private.key"
+)
+
+// ConfigDir - points to a user set directory.
+type ConfigDir struct {
+	path string
+}
+
+func getDefaultConfigDir() string {
+	homeDir, err := homedir.Dir()
+	if err != nil {
+		return ""
+	}
+
+	return filepath.Join(homeDir, defaultMinioConfigDir)
+}
+
+func getDefaultCertsDir() string {
+	return filepath.Join(getDefaultConfigDir(), certsDir)
+}
+
+func getDefaultCertsCADir() string {
+	return filepath.Join(getDefaultCertsDir(), certsCADir)
+}
+
+var (
+	// Default config, certs and CA directories.
+	defaultConfigDir  = &ConfigDir{path: getDefaultConfigDir()}
+	defaultCertsDir   = &ConfigDir{path: getDefaultCertsDir()}
+	defaultCertsCADir = &ConfigDir{path: getDefaultCertsCADir()}
+
+	// Points to current configuration directory -- deprecated, to be removed in future.
+	globalConfigDir = defaultConfigDir
+	// Points to current certs directory set by user with --certs-dir
+	globalCertsDir = defaultCertsDir
+	// Points to relative path to certs directory and is <value-of-certs-dir>/CAs
+	globalCertsCADir = defaultCertsCADir
+)
+
+// Get - returns current directory.
+func (dir *ConfigDir) Get() string {
+	return dir.path
+}
+
+// Attempts to create all directories, ignores any permission denied errors.
+func mkdirAllIgnorePerm(path string) error {
+	err := os.MkdirAll(path, 0o700)
+	if err != nil {
+		// It is possible in kubernetes like deployments this directory
+		// is already mounted and is not writable, ignore any write errors.
+		if osIsPermission(err) {
+			err = nil
+		}
+	}
+	return err
+}
+
+func getConfigFile() string {
+	return filepath.Join(globalConfigDir.Get(), minioConfigFile)
+}
+
+func getPublicCertFile() string {
+	return filepath.Join(globalCertsDir.Get(), publicCertFile)
+}
+
+func getPrivateKeyFile() string {
+	return filepath.Join(globalCertsDir.Get(), privateKeyFile)
+}