63 lines
2.2 KiB
Go
63 lines
2.2 KiB
Go
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// Copyright 2020 The go-ethereum Authors
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// This file is part of go-ethereum.
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//
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// The go-ethereum library is free software: you can redistribute it and/or modify
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// it under the terms of the GNU Lesser General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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//
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// The go-ethereum library is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU Lesser General Public License for more details.
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//
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// You should have received a copy of the GNU Lesser General Public License
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// along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>.
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// Package utils contains internal helper functions for go-ethereum commands.
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package utils
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import (
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"fmt"
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"github.com/ethereum/go-ethereum/console/prompt"
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)
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// GetPassPhrase displays the given text(prompt) to the user and requests some textual
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// data to be entered, but one which must not be echoed out into the terminal.
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// The method returns the input provided by the user.
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func GetPassPhrase(text string, confirmation bool) string {
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if text != "" {
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fmt.Println(text)
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}
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password, err := prompt.Stdin.PromptPassword("Password: ")
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if err != nil {
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Fatalf("Failed to read password: %v", err)
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}
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if confirmation {
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confirm, err := prompt.Stdin.PromptPassword("Repeat password: ")
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if err != nil {
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Fatalf("Failed to read password confirmation: %v", err)
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}
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if password != confirm {
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Fatalf("Passwords do not match")
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}
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}
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return password
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}
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// GetPassPhraseWithList retrieves the password associated with an account, either fetched
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// from a list of preloaded passphrases, or requested interactively from the user.
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func GetPassPhraseWithList(text string, confirmation bool, index int, passwords []string) string {
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// If a list of passwords was supplied, retrieve from them
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if len(passwords) > 0 {
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if index < len(passwords) {
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return passwords[index]
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}
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return passwords[len(passwords)-1]
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}
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// Otherwise prompt the user for the password
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password := GetPassPhrase(text, confirmation)
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return password
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}
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