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
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
|
#! /usr/bin/guile -s
!#
;; Copyright © 2016 Quentin "Sardem FF7" Glidic
;; Copyright © 2018 Fredrik "PlaTFooT" Salomonsson
;;
;; Permission is hereby granted, free of charge, to any person obtaining a copy
;; of this software and associated documentation files (the "Software"), to deal
;; in the Software without restriction, including without limitation the rights
;; to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
;; copies of the Software, and to permit persons to whom the Software is
;; furnished to do so, subject to the following conditions:
;;
;; The above copyright notice and this permission notice shall be included in
;; all copies or substantial portions of the Software.
;;
;; THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
;; IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
;; FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
;; AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
;; LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
;; OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
;; THE SOFTWARE.
(use-modules
(ice-9 popen)
(ice-9 textual-ports)
(srfi srfi-9) ;; For records
(ice-9 format)
(ice-9 regex)
(ice-9 getopt-long))
(define pinentry-rofi-guile-version "0.1.0")
(when (equal? (system-file-name-convention) 'windows)
(format #t "Only support posix systems!")
(exit #f))
(define-record-type <pinentry>
(make-pinentry ok prompt desc visibility display)
pinentry?
(ok pinentry-ok set-pinentry-ok!)
(prompt pinentry-prompt set-pinentry-prompt!)
(desc pinentry-desc set-pinentry-desc!)
(visibility pinentry-visibility set-pinentry-visibility!)
(display pinentry-display set-pinentry-display!))
(define-syntax-rule (set-and-return! val expr)
"Set val to expr and return val"
(begin (set! val expr) val))
(define (string-empty? str)
"Evaluates to #t if string is empty."
(string=? str ""))
(define (pinentry-option pinentry line)
"Process line if it starts with OPTION.
Return false otherwise.
Known options are:
grab
ttyname=/dev/pts/1
ttytype=tmux-256color
lc-messages=C
allow-external-password-cache
default-ok=_OK
default-cancel=_Cancel
default-yes=_Yes
default-no=_No
default-prompt=PIN:
default-pwmngr=_Save in password manager
default-cf-visi=Do you really want to make your passphrase visible on the screen?
default-tt-visi=Make passphrase visible
default-tt-hide=Hide passphrase
touch-file=/run/user/1000/gnupg/S.gpg-agent"
(let ((option-re (make-regexp "^OPTION (.+)$")))
(regexp-exec option-re line)))
(define (pinentry-getinfo pinentry line)
"Process line if it starts with GETINFO"
(let ((getinfo-re (make-regexp "^GETINFO (.+)$"))
(regex-match #f))
(when (set-and-return! regex-match (regexp-exec getinfo-re line))
(let ((info (match:substring regex-match 1)))
(cond
((string=? info "pid")
(format #t "D ~a\n" (getpid))
(force-output)))))
regex-match))
(define (pinentry-setkeyinfo pinentry line)
"SETKEYINFO s/FINGERPRINT"
(let ((setkeyinfo-re (make-regexp "^SETKEYINFO (.+)$")))
(regexp-exec setkeyinfo-re line)))
(define (html-< str)
"Replace < with <"
(regexp-substitute/global #f "<" str 'pre "<" 'post))
(define (hex->char str)
"Replace matching'%XX' where X ∈ {0-F} with their respective char."
(regexp-substitute/global
#f "%([[:xdigit:]]{2})" str 'pre
(lambda (m) (integer->char
(string->number
(match:substring m 1) 16))) 'post))
(define (pinentry-setdesc pinentry line)
"SETDESC Please enter the passphrase for the ssh key%0A ke:yf:in:ge:rp:ri:nt"
(let ((setdesc-re (make-regexp "^SETDESC (.+)$"))
(regex-match #f))
(when (set-and-return! regex-match (regexp-exec setdesc-re line))
(let ((mesg (hex->char (html-< (match:substring regex-match 1)))))
(set-pinentry-desc! pinentry mesg)))
regex-match))
(define (pinentry-setprompt pinentry line)
"SETPROMPT Passphrase:"
(let ((setprompt-re (make-regexp "^SETPROMPT (.+)$"))
(regex-match #f))
(when (set-and-return! regex-match (regexp-exec setprompt-re line))
(set-pinentry-prompt! pinentry (match:substring regex-match 1)))
regex-match))
(define (pinentry-getpin pinentry line)
(let ((getpin-re (make-regexp "^GETPIN$"))
(regex-match #f))
(when (set-and-return! regex-match (regexp-exec getpin-re line))
(let* ((pipe (open-pipe*
OPEN_READ
"env"
(format #f "DISPLAY=~a" (pinentry-display pinentry))
"rofi"
"-dmenu"
"-input" "/dev/null"
"-disable-history"
"-lines" "1"
(if (pinentry-visibility pinentry) "" "-password")
"-p" (pinentry-prompt pinentry)
"-mesg" (pinentry-desc pinentry)))
(pass (get-string-all pipe))
(status (close-pipe pipe)))
(if (equal? (status:exit-val status) 0)
(unless (string-empty? pass)
(format #t "D ~a" pass)
(force-output))
(begin
(format #t "ERR 83886179 Operation cancelled <rofi>\n")
(force-output)
(set-pinentry-ok! pinentry #f)))))
regex-match))
(define (pinentry-bye pinentry line)
(let ((bye-re (make-regexp "^BYE"))
(regex-match #f))
(when (set-and-return! regex-match (regexp-exec bye-re line))
(exit #t))
regex-match))
(define (pinentry-loop pinentry input-port)
(let ((line (get-line input-port)))
(unless (eof-object? line)
(cond
((pinentry-option pinentry line))
((pinentry-getinfo pinentry line))
((pinentry-setkeyinfo pinentry line))
((pinentry-setdesc pinentry line))
((pinentry-setprompt pinentry line))
((pinentry-getpin pinentry line))
((pinentry-bye pinentry line))
(#t (begin
(format #t "BYE\n")
(force-output)
(exit #f))))
(when (pinentry-ok pinentry)
(format #t "OK\n")
(force-output))
(pinentry-loop pinentry input-port))))
(let* ((option-spec
'((display (single-char #\d) (value #t))
(xauthority (single-char #\a) (value #t))
(version (single-char #\v) (value #f))
(help (single-char #\h) (value #f))))
(default-display ":0")
(options (getopt-long (command-line) option-spec))
(pinentry (make-pinentry #t "Passphrase:" "" #f
(option-ref options 'display default-display))))
(when (option-ref options 'help #f)
(format #t "\
Usage: ~a [OPTIONS]
Options:
-d, --display DISPLAY Set display, default is ~s.
-v, --version Display version.
-h, --help Display this help.
Author:
Fredrik \"PlaTFooT\" Salomonsson
"
(car (command-line))
default-display)
(exit #t))
(when (option-ref options 'version #f)
(format #t "pinentry-rofi-guile version ~a\n" pinentry-rofi-guile-version)
(exit #t))
(format #t "OK Please go ahead\n")
(force-output)
(pinentry-loop pinentry (current-input-port)))
|
