forked from keybase/client
/
login_with_paperkey.go
135 lines (112 loc) · 3.41 KB
/
login_with_paperkey.go
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
// Copyright 2015 Keybase, Inc. All rights reserved. Use of
// this source code is governed by the included BSD license.
// This engine makes sure the user is logged in and unlocked.
// It asks for a paper key if need be. It does not ask for a passphrase.
package engine
import "github.com/keybase/client/go/libkb"
// LoginWithPaperKey is an engine.
type LoginWithPaperKey struct {
libkb.Contextified
}
// NewLoginWithPaperKey creates a LoginWithPaperKey engine.
// Uses the paperkey to log in and unlock LKS.
func NewLoginWithPaperKey(g *libkb.GlobalContext) *LoginWithPaperKey {
return &LoginWithPaperKey{
Contextified: libkb.NewContextified(g),
}
}
// Name is the unique engine name.
func (e *LoginWithPaperKey) Name() string {
return "LoginWithPaperKey"
}
// GetPrereqs returns the engine prereqs.
func (e *LoginWithPaperKey) Prereqs() Prereqs {
return Prereqs{}
}
// RequiredUIs returns the required UIs.
func (e *LoginWithPaperKey) RequiredUIs() []libkb.UIKind {
return []libkb.UIKind{
libkb.LogUIKind,
libkb.SecretUIKind,
}
}
// SubConsumers returns the other UI consumers for this engine.
func (e *LoginWithPaperKey) SubConsumers() []libkb.UIConsumer {
return []libkb.UIConsumer{}
}
// Run starts the engine.
func (e *LoginWithPaperKey) Run(ctx *Context) error {
me, err := libkb.LoadMe(libkb.NewLoadUserForceArg(e.G()))
if err != nil {
return err
}
kp, err := findDeviceKeys(ctx, e, me)
if err == nil {
// Device keys are unlocked. Just log in with them.
e.G().Log.Debug("Logging in with unlocked device key")
err = e.G().LoginState().LoginWithKey(ctx.LoginContext, me, kp.sigKey, nil)
return err
}
// Prompts for a paper key.
e.G().Log.Debug("No device keys available; getting paper key")
kp, err = findPaperKeys(ctx, e.G(), me)
if err != nil {
return err
}
e.G().Log.Debug("Logging in")
err = e.G().LoginState().LoginWithKey(ctx.LoginContext, me, kp.sigKey, func(lctx libkb.LoginContext) error {
// Now we're logged in.
e.G().Log.Debug("Logged in")
ctx.LoginContext = lctx
// Get the LKS client half.
gen, clientLKS, err := fetchLKS(ctx, e.G(), kp.encKey)
if err != nil {
return err
}
lks := libkb.NewLKSecWithClientHalf(clientLKS, gen, me.GetUID(), e.G())
e.G().Log.Debug("Got LKS client half")
// Get the LKS server half.
err = lks.Load(lctx)
if err != nil {
return err
}
e.G().Log.Debug("Got LKS full")
secretStore := libkb.NewSecretStore(e.G(), me.GetNormalizedName())
e.G().Log.Debug("Got secret store")
// Extract the LKS secret
secret, err := lks.GetSecret(lctx)
if err != nil {
return err
}
e.G().Log.Debug("Got LKS secret")
err = secretStore.StoreSecret(secret)
if err != nil {
return err
}
e.G().Log.Debug("Stored secret with LKS from paperky")
// This could prompt but shouldn't because of the secret store.
err = e.unlockDeviceKeys(ctx, me)
if err != nil {
return err
}
e.G().Log.Debug("Unlocked device keys")
return nil
})
return err
}
func (e *LoginWithPaperKey) unlockDeviceKeys(ctx *Context, me *libkb.User) error {
ska := libkb.SecretKeyArg{
Me: me,
KeyType: libkb.DeviceSigningKeyType,
}
_, err := e.G().Keyrings.GetSecretKeyWithPrompt(ctx.SecretKeyPromptArg(ska, "unlock device keys"))
if err != nil {
return err
}
ska.KeyType = libkb.DeviceEncryptionKeyType
_, err = e.G().Keyrings.GetSecretKeyWithPrompt(ctx.SecretKeyPromptArg(ska, "unlock device keys"))
if err != nil {
return err
}
return nil
}