blob: 09e2f6655ff19f05b1d9cab8f91ff35de3180aa1 (
plain)
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
|
/- coki
/+ naive, ethereum, sr=sortug, cokil=coki, server
|_ [=sessions:coki =bowl:gall]
+* cokilib ~(. cokil [sessions bowl])
++ serve-metamask-challenge
|= eyre-id=@ta
:: special-case MetaMask auth handling
=/ new-challenge (sham [now eny]:bowl)
=/ jon (enjs-challenge new-challenge)
%+ weld (send-self-poke:cokilib [%meta new-challenge])
%+ give-simple-payload:app:server
eyre-id
(json-response:gen:server jon)
::
:: Modified from ~rabsef-bicrym's %mask by ~hanfel-dovned.
++ process-metamask-auth
|= [order-id=@t octs=(unit octs) redirect-path=@t base-slug=@t]
^- (each (list card:agent:gall) [@ud @t])
=/ challenges challenges.sessions
|^
?~ octs [%.n 403 %empty-auth-request]
:: ?. =('auth' (cut 3 [0 4] q.u.octs))
:: *(list card:agent:gall)
=/ jon (de:json:html q.u.octs)
?~ jon [%.n 403 %empty-auth-json]
=/ body=json u.jon
=/ axn (dejs-action body)
=/ is-valid (validate who.axn challenge.axn adr.axn sig.axn)
~& >> signature-valid=[is-valid who.axn challenge.axn adr.axn sig.axn]
?. is-valid [%.n 403 %bad-metamask-signature]
=/ coki-hash session-hash:cokilib
=/ coki (session-cookie-string:cokilib coki-hash who.axn base-slug)
:- %.y
%+ weld
(send-self-poke:cokilib [%coki who.axn coki-hash challenge.axn])
%+ give-simple-payload:app:server
order-id
^- simple-payload:http
:- :- 303
:~
['set-cookie' coki]
['location' redirect-path]
==
=/ obj=json %- pairs:enjs:format :~([%login-ok [%b .y]])
`(as-octs:mimes:html (en:json:html obj))
++ validate
|= [who=@p =challenge:coki address=tape hancock=tape]
^- ?
=/ addy (from-tape address)
=/ cock (from-tape hancock)
=/ owner (get-owner who) ?~ owner
~& "no owner"
%.n
?. =(addy u.owner)
~& "wrong owner"
%.n
?. (~(has in challenges) challenge)
~& "bad challenge"
%.n
=/ note=@uvI
=+ octs=(as-octs:mimes:html (scot %uv challenge))
%- keccak-256:keccak:crypto
%- as-octs:mimes:html
;: (cury cat 3)
'\19Ethereum Signed Message:\0a'
(crip (a-co:co p.octs))
q.octs
==
?. &(=(20 (met 3 addy)) =(65 (met 3 cock)))
~& "addy != cock"
%.n
=/ r (cut 3 [33 32] cock)
=/ s (cut 3 [1 32] cock)
=/ v=@
=+ v=(cut 3 [0 1] cock)
?+ v 99
%0 0
%1 1
%27 0
%28 1
==
?. |(=(0 v) =(1 v))
~& "wrong v"
%.n
=/ xy
(ecdsa-raw-recover:secp256k1:secp:crypto note v r s)
=/ pub :((cury cat 3) y.xy x.xy 0x4)
=/ add (address-from-pub:key:ethereum pub)
=(addy add)
::
++ from-tape
|=(h=tape ^-(@ux (scan h ;~(pfix (jest '0x') hex))))
::
++ get-owner
|= who=@p
^- (unit @ux)
=- ?~ pin=`(unit point:naive)`-
~
?. |(?=(%l1 dominion.u.pin) ?=(%l2 dominion.u.pin))
~
`address.owner.own.u.pin
.^ (unit point:naive)
%gx
%+ en-beam
[our.bowl %azimuth [%da now.bowl]]
/point/(scot %p who)/noun
==
++ dejs-action
|= jon=json
^- authorization:cokilib
=, dejs:format
%. jon
%- ot
:: :~ [%who (se %p)]
:~ [%who ni]
[%challenge (se %uv)]
[%address sa]
[%signature sa]
==
--
++ enjs-challenge
=, enjs:format
|= chal=@
^- json
%- pairs
:~ [%challenge [%s (scot %uv chal)]]
==
--
|
