github.com/nuvolaris/nuv@v0.0.0-20240511174247-a74e3a52bfd8/auth/password_reader.go (about) 1 // Licensed to the Apache Software Foundation (ASF) under one 2 // or more contributor license agreements. See the NOTICE file 3 // distributed with this work for additional information 4 // regarding copyright ownership. The ASF licenses this file 5 // to you under the Apache License, Version 2.0 (the 6 // "License"); you may not use this file except in compliance 7 // with the License. You may obtain a copy of the License at 8 // 9 // http://www.apache.org/licenses/LICENSE-2.0 10 // 11 // Unless required by applicable law or agreed to in writing, 12 // software distributed under the License is distributed on an 13 // "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY 14 // KIND, either express or implied. See the License for the 15 // specific language governing permissions and limitations 16 // under the License. 17 18 package auth 19 20 import ( 21 "errors" 22 "syscall" 23 24 "golang.org/x/term" 25 ) 26 27 type PasswordReader interface { 28 ReadPassword() (string, error) 29 } 30 31 type StdInPasswordReader struct{} 32 33 func (r StdInPasswordReader) ReadPassword() (string, error) { 34 pwd, error := term.ReadPassword(int(syscall.Stdin)) 35 return string(pwd), error 36 } 37 38 var pwdReader PasswordReader = StdInPasswordReader{} 39 40 func AskPassword() (string, error) { 41 pwd, err := pwdReader.ReadPassword() 42 if err != nil { 43 return "", err 44 } 45 if len(pwd) == 0 { 46 return "", errors.New("password is empty") 47 } 48 return pwd, nil 49 }