Migrate this project to minio micro services code

auth-config.go

@@ -0,0 +1,127 @@
+/*
+ * Minio Cloud Storage, (C) 2015 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 main
+
+import (
+	"os"
+	"os/user"
+	"path/filepath"
+
+	"github.com/minio/minio-xl/pkg/probe"
+	"github.com/minio/minio-xl/pkg/quick"
+)
+
+// AuthConfig auth keys
+type AuthConfig struct {
+	Version         string `json:"version"`
+	AccessKeyID     string `json:"accessKeyId"`
+	SecretAccessKey string `json:"secretAccessKey"`
+}
+
+// getAuthConfigPath get users config path
+func getAuthConfigPath() (string, *probe.Error) {
+	if customConfigPath != "" {
+		return customConfigPath, nil
+	}
+	u, err := user.Current()
+	if err != nil {
+		return "", probe.NewError(err)
+	}
+	authConfigPath := filepath.Join(u.HomeDir, ".minio")
+	return authConfigPath, nil
+}
+
+// createAuthConfigPath create users config path
+func createAuthConfigPath() *probe.Error {
+	authConfigPath, err := getAuthConfigPath()
+	if err != nil {
+		return err.Trace()
+	}
+	if err := os.MkdirAll(authConfigPath, 0700); err != nil {
+		return probe.NewError(err)
+	}
+	return nil
+}
+
+// isAuthConfigFileExists is auth config file exists?
+func isAuthConfigFileExists() bool {
+	if _, err := os.Stat(mustGetAuthConfigFile()); err != nil {
+		if os.IsNotExist(err) {
+			return false
+		}
+		panic(err)
+	}
+	return true
+}
+
+// mustGetAuthConfigFile always get users config file, if not panic
+func mustGetAuthConfigFile() string {
+	authConfigFile, err := getAuthConfigFile()
+	if err != nil {
+		panic(err)
+	}
+	return authConfigFile
+}
+
+// getAuthConfigFile get users config file
+func getAuthConfigFile() (string, *probe.Error) {
+	authConfigPath, err := getAuthConfigPath()
+	if err != nil {
+		return "", err.Trace()
+	}
+	return filepath.Join(authConfigPath, "fsUsers.json"), nil
+}
+
+// customConfigPath for custom config path only for testing purposes
+var customConfigPath string
+
+// saveAuthConfig save auth config
+func saveAuthConfig(a *AuthConfig) *probe.Error {
+	authConfigFile, err := getAuthConfigFile()
+	if err != nil {
+		return err.Trace()
+	}
+	qc, err := quick.New(a)
+	if err != nil {
+		return err.Trace()
+	}
+	if err := qc.Save(authConfigFile); err != nil {
+		return err.Trace()
+	}
+	return nil
+}
+
+// loadAuthConfig load auth config
+func loadAuthConfig() (*AuthConfig, *probe.Error) {
+	authConfigFile, err := getAuthConfigFile()
+	if err != nil {
+		return nil, err.Trace()
+	}
+	if _, err := os.Stat(authConfigFile); err != nil {
+		return nil, probe.NewError(err)
+	}
+	a := &AuthConfig{}
+	a.Version = "1"
+	qc, err := quick.New(a)
+	if err != nil {
+		return nil, err.Trace()
+	}
+	if err := qc.Load(authConfigFile); err != nil {
+		return nil, err.Trace()
+	}
+	return qc.Data().(*AuthConfig), nil
+}