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password_reader.go
49 lines (41 loc) · 1.34 KB
/
password_reader.go
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// Licensed to the Apache Software Foundation (ASF) under one
// or more contributor license agreements. See the NOTICE file
// distributed with this work for additional information
// regarding copyright ownership. The ASF licenses this file
// to you 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 auth
import (
"errors"
"syscall"
"golang.org/x/term"
)
type PasswordReader interface {
ReadPassword() (string, error)
}
type StdInPasswordReader struct{}
func (r StdInPasswordReader) ReadPassword() (string, error) {
pwd, error := term.ReadPassword(int(syscall.Stdin))
return string(pwd), error
}
var pwdReader PasswordReader = StdInPasswordReader{}
func AskPassword() (string, error) {
pwd, err := pwdReader.ReadPassword()
if err != nil {
return "", err
}
if len(pwd) == 0 {
return "", errors.New("password is empty")
}
return pwd, nil
}