github.com/rigado/snapd@v2.42.5-go-mod+incompatible/cmd/snap/cmd_create_key.go (about) 1 // -*- Mode: Go; indent-tabs-mode: t -*- 2 3 /* 4 * Copyright (C) 2016 Canonical Ltd 5 * 6 * This program is free software: you can redistribute it and/or modify 7 * it under the terms of the GNU General Public License version 3 as 8 * published by the Free Software Foundation. 9 * 10 * This program is distributed in the hope that it will be useful, 11 * but WITHOUT ANY WARRANTY; without even the implied warranty of 12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 13 * GNU General Public License for more details. 14 * 15 * You should have received a copy of the GNU General Public License 16 * along with this program. If not, see <http://www.gnu.org/licenses/>. 17 * 18 */ 19 20 package main 21 22 import ( 23 "errors" 24 "fmt" 25 26 "github.com/jessevdk/go-flags" 27 "golang.org/x/crypto/ssh/terminal" 28 29 "github.com/snapcore/snapd/asserts" 30 "github.com/snapcore/snapd/i18n" 31 ) 32 33 type cmdCreateKey struct { 34 Positional struct { 35 KeyName string 36 } `positional-args:"true"` 37 } 38 39 func init() { 40 cmd := addCommand("create-key", 41 i18n.G("Create cryptographic key pair"), 42 i18n.G(` 43 The create-key command creates a cryptographic key pair that can be 44 used for signing assertions. 45 `), 46 func() flags.Commander { 47 return &cmdCreateKey{} 48 }, nil, []argDesc{{ 49 // TRANSLATORS: This needs to begin with < and end with > 50 name: i18n.G("<key-name>"), 51 // TRANSLATORS: This should not start with a lowercase letter. 52 desc: i18n.G("Name of key to create; defaults to 'default'"), 53 }}) 54 cmd.hidden = true 55 } 56 57 func (x *cmdCreateKey) Execute(args []string) error { 58 if len(args) > 0 { 59 return ErrExtraArgs 60 } 61 62 keyName := x.Positional.KeyName 63 if keyName == "" { 64 keyName = "default" 65 } 66 if !asserts.IsValidAccountKeyName(keyName) { 67 return fmt.Errorf(i18n.G("key name %q is not valid; only ASCII letters, digits, and hyphens are allowed"), keyName) 68 } 69 70 fmt.Fprint(Stdout, i18n.G("Passphrase: ")) 71 passphrase, err := terminal.ReadPassword(0) 72 fmt.Fprint(Stdout, "\n") 73 if err != nil { 74 return err 75 } 76 fmt.Fprint(Stdout, i18n.G("Confirm passphrase: ")) 77 confirmPassphrase, err := terminal.ReadPassword(0) 78 fmt.Fprint(Stdout, "\n") 79 if err != nil { 80 return err 81 } 82 if string(passphrase) != string(confirmPassphrase) { 83 return errors.New("passphrases do not match") 84 } 85 if err != nil { 86 return err 87 } 88 89 manager := asserts.NewGPGKeypairManager() 90 return manager.Generate(string(passphrase), keyName) 91 }