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pgp_export_key.go
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/
pgp_export_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.PGPKeyImportEngine is a class for optionally generating PGP keys,
// and pushing them into the keybase sigchain via the Delegator.
//
import (
"fmt"
"github.com/keybase/client/go/libkb"
keybase1 "github.com/keybase/client/go/protocol"
)
type queryType int
const (
unset queryType = iota
fingerprint
kid
either
)
type PGPKeyExportEngine struct {
libkb.Contextified
arg keybase1.PGPQuery
qtype queryType
res []keybase1.KeyInfo
me *libkb.User
}
func (e *PGPKeyExportEngine) Prereqs() Prereqs {
return Prereqs{
Session: true,
}
}
func (e *PGPKeyExportEngine) Name() string {
return "PGPKeyExportEngine"
}
func (e *PGPKeyExportEngine) RequiredUIs() []libkb.UIKind {
return []libkb.UIKind{
libkb.SecretUIKind,
}
}
func (e *PGPKeyExportEngine) SubConsumers() []libkb.UIConsumer {
return nil
}
func (e *PGPKeyExportEngine) Results() []keybase1.KeyInfo {
return e.res
}
func NewPGPKeyExportEngine(arg keybase1.PGPExportArg, g *libkb.GlobalContext) *PGPKeyExportEngine {
return &PGPKeyExportEngine{
arg: arg.Options,
qtype: either,
Contextified: libkb.NewContextified(g),
}
}
func NewPGPKeyExportByKIDEngine(arg keybase1.PGPExportByKIDArg, g *libkb.GlobalContext) *PGPKeyExportEngine {
return &PGPKeyExportEngine{
arg: arg.Options,
qtype: kid,
Contextified: libkb.NewContextified(g),
}
}
func NewPGPKeyExportByFingerprintEngine(arg keybase1.PGPExportByFingerprintArg, g *libkb.GlobalContext) *PGPKeyExportEngine {
return &PGPKeyExportEngine{
arg: arg.Options,
qtype: fingerprint,
Contextified: libkb.NewContextified(g),
}
}
func (e *PGPKeyExportEngine) pushRes(fp libkb.PGPFingerprint, key string, desc string) {
e.res = append(e.res, keybase1.KeyInfo{
Fingerprint: fp.String(),
Key: key,
Desc: desc,
})
}
func (e *PGPKeyExportEngine) queryMatch(k libkb.GenericKey) bool {
if len(e.arg.Query) == 0 {
return true
}
var match bool
switch e.qtype {
case either:
match = libkb.KeyMatchesQuery(k, e.arg.Query, e.arg.ExactMatch)
case fingerprint:
match = k.GetFingerprintP().Match(e.arg.Query, e.arg.ExactMatch)
case kid:
match = k.GetKID().Match(e.arg.Query, e.arg.ExactMatch)
}
return match
}
func (e *PGPKeyExportEngine) exportPublic() (err error) {
keys := e.me.GetActivePGPKeys(false)
for _, k := range keys {
fp := k.GetFingerprintP()
s, err := k.Encode()
if fp == nil || err != nil {
continue
}
if !e.queryMatch(k) {
continue
}
e.pushRes(*fp, s, k.VerboseDescription())
}
return
}
func (e *PGPKeyExportEngine) exportSecret(ctx *Context) error {
ska := libkb.SecretKeyArg{
Me: e.me,
KeyType: libkb.PGPKeyType,
KeyQuery: e.arg.Query,
ExactMatch: e.arg.ExactMatch,
}
key, skb, err := e.G().Keyrings.GetSecretKeyAndSKBWithPrompt(ctx.LoginContext, ska, ctx.SecretUI, "key export")
if err != nil {
if _, ok := err.(libkb.NoSecretKeyError); ok {
// if no secret key found, don't return an error, just let
// the result be empty
return nil
}
return err
}
fp := key.GetFingerprintP()
if fp == nil {
return libkb.BadKeyError{Msg: "no fingerprint found"}
}
if !e.queryMatch(key) {
return nil
}
if _, ok := key.(*libkb.PGPKeyBundle); !ok {
return libkb.BadKeyError{Msg: "Expected a PGP key"}
}
raw := skb.RawUnlockedKey()
if raw == nil {
return libkb.BadKeyError{Msg: "can't get raw representation of key"}
}
ret, err := libkb.PGPKeyRawToArmored(raw, true)
if err != nil {
return err
}
e.pushRes(*fp, ret, "")
return nil
}
func (e *PGPKeyExportEngine) loadMe() (err error) {
e.me, err = libkb.LoadMe(libkb.NewLoadUserPubOptionalArg(e.G()))
return
}
func (e *PGPKeyExportEngine) Run(ctx *Context) (err error) {
e.G().Log.Debug("+ PGPKeyExportEngine::Run")
defer func() {
e.G().Log.Debug("- PGPKeyExportEngine::Run -> %s", libkb.ErrToOk(err))
}()
if e.qtype == unset {
return fmt.Errorf("PGPKeyExportEngine: query type not set")
}
if err = e.loadMe(); err != nil {
return
}
if e.arg.Secret {
err = e.exportSecret(ctx)
} else {
err = e.exportPublic()
}
return
}