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// Copyright 2022 Northern.tech AS
//
// 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 cmd
import (
"fmt"
"io/ioutil"
"os"
"os/user"
"path"
"path/filepath"
"github.com/pkg/errors"
"github.com/spf13/cobra"
)
func CheckErr(e error) {
if e != nil {
fmt.Fprintf(os.Stderr, "FAILURE: %s\n", e.Error())
os.Exit(1)
}
}
func migrateAuthToken(oldtoken string, token string) {
// if needed, migrate token from old to new location
if _, err := os.Stat(token); !os.IsNotExist(err) {
// new token exists, no migration
return
}
if _, err := os.Stat(oldtoken); err != nil {
// old token doesn't exist, no migration
return
}
// Attempt migration, ignore errors (but log them?)
if err := os.MkdirAll(filepath.Dir(token), 0700); err == nil {
// log that token was moved?
_ = os.Rename(oldtoken, token)
}
// Cleanup old token directory if empty
_ = os.Remove(filepath.Dir(oldtoken)) // err on non-empty, ignore.
}
func getDefaultAuthTokenPath() (string, error) {
cachedir := ""
userhomedir := ""
if homeenv := os.Getenv("HOME"); homeenv != "" {
userhomedir = homeenv
} else if user, err := user.Current(); err == nil {
userhomedir = user.HomeDir
} else {
return "", errors.New("Not able to determine users cache dir")
}
if cachehomeenv := os.Getenv("XDG_CACHE_HOME"); cachehomeenv != "" {
cachedir = cachehomeenv
} else {
cachedir = path.Join(userhomedir, ".cache")
}
oldtoken := filepath.Join(userhomedir, ".mender", "authtoken")
token := filepath.Join(cachedir, "mender", "authtoken")
migrateAuthToken(oldtoken, token)
return token, nil
}
func getAuthToken(cmd *cobra.Command) (string, error) {
tokenValue, err := cmd.Flags().GetString(argRootTokenValue)
if err != nil {
return "", err
} else if tokenValue != "" {
return tokenValue, nil
}
tokenPath, err := getDefaultAuthTokenPath()
if err != nil {
return "", err
}
token, err := ioutil.ReadFile(tokenPath)
if err != nil {
return "", errors.Wrap(err, "Please Login first")
}
return string(token), nil
}
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