forked from keybase/client
/
gpg_import_key.go
214 lines (178 loc) · 4.82 KB
/
gpg_import_key.go
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// Copyright 2015 Keybase, Inc. All rights reserved. Use of
// this source code is governed by the included BSD license.
package engine
//
// engine.GPGImportKeyEngine is a class that selects key from the GPG keyring via
// shell-out to the gpg command line client. It's useful in `client mykey select`
// and other places in which the user picks existing PGP keys on the existing
// system for use in Keybase tasks.
//
import (
"fmt"
"golang.org/x/net/context"
"github.com/keybase/client/go/libkb"
keybase1 "github.com/keybase/client/go/protocol"
)
type GPGImportKeyArg struct {
Query string
Signer libkb.GenericKey
AllowMulti bool
SkipImport bool
OnlyImport bool
Me *libkb.User
Lks *libkb.LKSec
}
type GPGImportKeyEngine struct {
last *libkb.PGPKeyBundle
arg *GPGImportKeyArg
duplicatedFingerprints []libkb.PGPFingerprint
libkb.Contextified
}
func NewGPGImportKeyEngine(arg *GPGImportKeyArg, g *libkb.GlobalContext) *GPGImportKeyEngine {
return &GPGImportKeyEngine{
arg: arg,
Contextified: libkb.NewContextified(g),
}
}
func (e *GPGImportKeyEngine) Prereqs() Prereqs {
return Prereqs{
Session: true,
}
}
func (e *GPGImportKeyEngine) Name() string {
return "GPGImportKeyEngine"
}
func (e *GPGImportKeyEngine) RequiredUIs() []libkb.UIKind {
return []libkb.UIKind{
libkb.GPGUIKind,
libkb.SecretUIKind,
}
}
func (e *GPGImportKeyEngine) SubConsumers() []libkb.UIConsumer {
return []libkb.UIConsumer{
&PGPKeyImportEngine{},
&PGPUpdateEngine{},
}
}
func (e *GPGImportKeyEngine) WantsGPG(ctx *Context) (bool, error) {
gpg := e.G().GetGpgClient()
canExec, err := gpg.CanExec()
if err != nil {
return false, err
}
if !canExec {
return false, nil
}
// they have gpg
res, err := ctx.GPGUI.WantToAddGPGKey(context.TODO(), 0)
if err != nil {
return false, err
}
return res, nil
}
func (e *GPGImportKeyEngine) Run(ctx *Context) (err error) {
gpg := e.G().GetGpgClient()
me := e.arg.Me
if me == nil {
if me, err = libkb.LoadMe(libkb.NewLoadUserPubOptionalArg(e.G())); err != nil {
return err
}
}
if !e.arg.OnlyImport {
if err = PGPCheckMulti(me, e.arg.AllowMulti); err != nil {
return err
}
}
if err = gpg.Configure(); err != nil {
return err
}
index, warns, err := gpg.Index(true, e.arg.Query)
if err != nil {
return err
}
warns.Warn()
var gks []keybase1.GPGKey
for _, key := range index.Keys {
gk := keybase1.GPGKey{
Algorithm: fmt.Sprintf("%d%s", key.Bits, key.AlgoString()),
KeyID: key.GetFingerprint().ToKeyID(),
Expiration: key.ExpirationString(),
Identities: key.GetPGPIdentities(),
}
gks = append(gks, gk)
}
if len(gks) == 0 {
return fmt.Errorf("No PGP keys available to choose from.")
}
res, err := ctx.GPGUI.SelectKeyAndPushOption(context.TODO(), keybase1.SelectKeyAndPushOptionArg{Keys: gks})
if err != nil {
return err
}
e.G().Log.Debug("SelectKey result: %+v", res)
var selected *libkb.GpgPrimaryKey
for _, key := range index.Keys {
if key.GetFingerprint().ToKeyID() == res.KeyID {
selected = key
break
}
}
if selected == nil {
return nil
}
publicKeys := me.GetActivePGPKeys(false)
duplicate := false
for _, key := range publicKeys {
if key.GetFingerprint().Eq(*(selected.GetFingerprint())) {
duplicate = true
break
}
}
if duplicate && !e.arg.OnlyImport {
// This key's already been posted to the server.
res, err := ctx.GPGUI.ConfirmDuplicateKeyChosen(context.TODO(), 0)
if err != nil {
return err
}
if !res {
return libkb.SibkeyAlreadyExistsError{}
}
// We're sending a key update, then.
fp := fmt.Sprintf("%s", *(selected.GetFingerprint()))
eng := NewPGPUpdateEngine([]string{fp}, false, e.G())
err = RunEngine(eng, ctx)
e.duplicatedFingerprints = eng.duplicatedFingerprints
return err
}
bundle, err := gpg.ImportKey(true, *(selected.GetFingerprint()))
if err != nil {
return fmt.Errorf("ImportKey error: %s", err)
}
if err := bundle.Unlock("Import of key into keybase keyring", ctx.SecretUI); err != nil {
return err
}
e.G().Log.Info("Bundle unlocked: %s", selected.GetFingerprint().ToKeyID())
eng := NewPGPKeyImportEngine(PGPKeyImportEngineArg{
Pregen: bundle,
SigningKey: e.arg.Signer,
Me: me,
AllowMulti: e.arg.AllowMulti,
NoSave: e.arg.SkipImport,
OnlySave: e.arg.OnlyImport,
Lks: e.arg.Lks,
})
if err = RunEngine(eng, ctx); err != nil {
// It's important to propagate a CanceledError unmolested,
// since the UI needs to know that. See:
// https://github.com/keybase/client/issues/226
if _, ok := err.(libkb.CanceledError); !ok {
err = libkb.KeyGenError{Msg: err.Error()}
}
return
}
e.G().Log.Info("Key %s imported", selected.GetFingerprint().ToKeyID())
e.last = bundle
return nil
}
func (e *GPGImportKeyEngine) LastKey() *libkb.PGPKeyBundle {
return e.last
}