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cmd_keys.go
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cmd_keys.go
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// -*- Mode: Go; indent-tabs-mode: t -*-
/*
* Copyright (C) 2016-2021 Canonical Ltd
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 3 as
* published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*
*/
package main
import (
"encoding/json"
"fmt"
"github.com/jessevdk/go-flags"
"github.com/snapcore/snapd/asserts/signtool"
"github.com/snapcore/snapd/i18n"
)
type cmdKeys struct {
JSON bool `long:"json"`
}
func init() {
cmd := addCommand("keys",
i18n.G("List cryptographic keys"),
i18n.G(`
The keys command lists cryptographic keys that can be used for signing
assertions.
`),
func() flags.Commander {
return &cmdKeys{}
}, map[string]string{
// TRANSLATORS: This should not start with a lowercase letter.
"json": i18n.G("Output results in JSON format"),
}, nil)
cmd.hidden = true
cmd.completeHidden = true
}
// Key represents a key that can be used for signing assertions.
type Key struct {
Name string `json:"name"`
Sha3_384 string `json:"sha3-384"`
}
func outputJSON(keys []Key) error {
obj, err := json.Marshal(keys)
if err != nil {
return err
}
fmt.Fprintf(Stdout, "%s\n", obj)
return nil
}
func outputText(keys []Key) error {
if len(keys) == 0 {
fmt.Fprintf(Stderr, "No keys registered, see `snapcraft create-key`\n")
return nil
}
w := tabWriter()
defer w.Flush()
fmt.Fprintln(w, i18n.G("Name\tSHA3-384"))
for _, key := range keys {
fmt.Fprintf(w, "%s\t%s\n", key.Name, key.Sha3_384)
}
return nil
}
func (x *cmdKeys) Execute(args []string) error {
if len(args) > 0 {
return ErrExtraArgs
}
keypairMgr, err := signtool.GetKeypairManager()
if err != nil {
return err
}
kinfos, err := keypairMgr.List()
if err != nil {
return err
}
keys := make([]Key, len(kinfos))
for i, kinfo := range kinfos {
keys[i].Name = kinfo.Name
keys[i].Sha3_384 = kinfo.ID
}
if x.JSON {
return outputJSON(keys)
}
return outputText(keys)
}