m-chrzan.xyz
aboutsummaryrefslogtreecommitdiff
path: root/contrib/emacs/password-store.el
blob: 1d230907893f168ff674b49a9015f98199cad54d (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
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
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
;;; password-store.el --- Password store (pass) support  -*- lexical-binding: t; -*-

;; Copyright (C) 2014-2019 Svend Sorensen <svend@svends.net>

;; Author: Svend Sorensen <svend@svends.net>
;; Maintainer: Tino Calancha <tino.calancha@gmail.com>
;; Version: 2.1.4
;; URL: https://www.passwordstore.org/
;; Package-Requires: ((emacs "25") (s "1.9.0") (with-editor "2.5.11") (auth-source-pass "5.0.0"))
;; Keywords: tools pass password password-store

;; This file is not part of GNU Emacs.

;; This program is free software: you can redistribute it and/or modify
;; it under the terms of the GNU General Public License as published by
;; the Free Software Foundation, either version 3 of the License, or
;; (at your option) any later version.

;; This program is distributed in the hope that it will be useful,
;; but WITHOUT ANY WARRANTY; without even the implied warranty of
;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
;; GNU General Public License for more details.

;; You should have received a copy of the GNU General Public License
;; along with this program.  If not, see <http://www.gnu.org/licenses/>.

;;; Commentary:

;; This package provides functions for working with pass ("the
;; standard Unix password manager").
;;
;; http://www.passwordstore.org/

;;; Code:

(require 'with-editor)
(require 'auth-source-pass)

(defgroup password-store '()
  "Emacs mode for password-store."
  :prefix "password-store-"
  :group 'password-store)

(defcustom password-store-password-length 25
  "Default password length."
  :group 'password-store
  :type 'number)

(defcustom password-store-time-before-clipboard-restore
  (if (getenv "PASSWORD_STORE_CLIP_TIME")
      (string-to-number (getenv "PASSWORD_STORE_CLIP_TIME"))
    45)
  "Number of seconds to wait before restoring the clipboard."
  :group 'password-store
  :type 'number)

(defcustom password-store-url-field "url"
  "Field name used in the files to indicate an url."
  :group 'password-store
  :type 'string)

(defvar password-store-executable
  (executable-find "pass")
  "Pass executable.")

(defvar password-store-timeout-timer nil
  "Timer for clearing clipboard.")

(defun password-store-timeout ()
  "Number of seconds to wait before clearing the password.

This function just returns `password-store-time-before-clipboard-restore'.
Kept for backward compatibility with other libraries."
  password-store-time-before-clipboard-restore)

(defun password-store--run-1 (callback &rest args)
  "Run pass with ARGS.

Nil arguments are ignored.  Calls CALLBACK with the output on success,
or outputs error message on failure."
  (let ((output ""))
    (make-process
     :name "password-store-gpg"
     :command (cons password-store-executable (delq nil args))
     :connection-type 'pipe
     :noquery t
     :filter (lambda (process text)
               (setq output (concat output text)))
     :sentinel (lambda (process state)
                 (cond
                  ((and (eq (process-status process) 'exit)
                        (zerop (process-exit-status process)))
                   (funcall callback output))
                  ((eq (process-status process) 'run) (accept-process-output process))
                  (t (error (concat "password-store: " state))))))))

(defun password-store--run (&rest args)
  "Run pass with ARGS.

Nil arguments are ignored.  Returns the output on success, or
outputs error message on failure."
  (let ((output nil)
        (slept-for 0))
    (apply #'password-store--run-1 (lambda (password)
                                     (setq output password))
           (delq nil args))
    (while (not output)
      (sleep-for .1))
    output))

(defun password-store--run-async (&rest args)
  "Run pass asynchronously with ARGS.

Nil arguments are ignored.  Output is discarded."
  (let ((args (mapcar #'shell-quote-argument args)))
    (with-editor-async-shell-command
     (mapconcat 'identity
                (cons password-store-executable
                      (delq nil args)) " "))))

(defun password-store--run-init (gpg-ids &optional folder)
  (apply 'password-store--run "init"
         (if folder (format "--path=%s" folder))
         gpg-ids))

(defun password-store--run-list (&optional subdir)
  (error "Not implemented"))

(defun password-store--run-grep (&optional string)
  (error "Not implemented"))

(defun password-store--run-find (&optional string)
  (error "Not implemented"))

(defun password-store--run-show (entry &optional callback)
  (if callback
      (password-store--run-1 callback "show" entry)
    (password-store--run "show" entry)))

(defun password-store--run-insert (entry password &optional force)
  (error "Not implemented"))

(defun password-store--run-edit (entry)
  (password-store--run-async "edit"
                             entry))

(defun password-store--run-generate (entry password-length &optional force no-symbols)
  (password-store--run "generate"
                       (if force "--force")
                       (if no-symbols "--no-symbols")
                       entry
                       (number-to-string password-length)))

(defun password-store--run-remove (entry &optional recursive)
  (password-store--run "remove"
                       "--force"
                       (if recursive "--recursive")
                       entry))

(defun password-store--run-rename (entry new-entry &optional force)
  (password-store--run "rename"
                       (if force "--force")
                       entry
                       new-entry))

(defun password-store--run-copy (entry new-entry &optional force)
  (password-store--run "copy"
                       (if force "--force")
                       entry
                       new-entry))

(defun password-store--run-git (&rest args)
  (apply 'password-store--run "git"
         args))

(defun password-store--run-version ()
  (password-store--run "version"))

(defvar password-store-kill-ring-pointer nil
  "The tail of of the kill ring ring whose car is the password.")

(defun password-store-dir ()
  "Return password store directory."
  (or (bound-and-true-p auth-source-pass-filename)
      (getenv "PASSWORD_STORE_DIR")
      "~/.password-store"))

(defun password-store--entry-to-file (entry)
  "Return file name corresponding to ENTRY."
  (concat (expand-file-name entry (password-store-dir)) ".gpg"))

(defun password-store--file-to-entry (file)
  "Return entry name corresponding to FILE."
  (file-name-sans-extension (file-relative-name file (password-store-dir))))

(defun password-store--completing-read (&optional require-match)
  "Read a password entry in the minibuffer, with completion.

Require a matching password if `REQUIRE-MATCH' is 't'."
  (completing-read "Password entry: " (password-store-list) nil require-match))

(defun password-store-parse-entry (entry)
  "Return an alist of the data associated with ENTRY.

ENTRY is the name of a password-store entry."
  (auth-source-pass-parse-entry entry))

(defun password-store-read-field (entry)
  "Read a field in the minibuffer, with completion for ENTRY."
  (let* ((inhibit-message t)
         (valid-fields (mapcar #'car (password-store-parse-entry entry))))
    (completing-read "Field: " valid-fields nil 'match)))

(defun password-store-list (&optional subdir)
  "List password entries under SUBDIR."
  (unless subdir (setq subdir ""))
  (let ((dir (expand-file-name subdir (password-store-dir))))
    (if (file-directory-p dir)
        (delete-dups
         (mapcar 'password-store--file-to-entry
                 (directory-files-recursively dir ".+\\.gpg\\'"))))))

;;;###autoload
(defun password-store-edit (entry)
  "Edit password for ENTRY."
  (interactive (list (password-store--completing-read t)))
  (password-store--run-edit entry))

;;;###autoload
(defun password-store-get (entry &optional callback)
  "Return password for ENTRY.

Returns the first line of the password data.
When CALLBACK is non-`NIL', call CALLBACK with the first line instead."
  (let* ((inhibit-message t)
         (secret (auth-source-pass-get 'secret entry)))
    (if (not callback) secret
      (password-store--run-show
       entry
       (lambda (_) (funcall callback secret))))))

;;;###autoload
(defun password-store-get-field (entry field &optional callback)
  "Return FIELD for ENTRY.
FIELD is a string, for instance \"url\". 
When CALLBACK is non-`NIL', call it with the line associated to FIELD instead.
If FIELD equals to symbol secret, then this function reduces to `password-store-get'."
  (let* ((inhibit-message t)
         (secret (auth-source-pass-get field entry)))
    (if (not callback) secret
      (password-store--run-show
       entry
       (lambda (_) (and secret (funcall callback secret)))))))


;;;###autoload
(defun password-store-clear (&optional field)
  "Clear secret in the kill ring.

Optional argument FIELD, a symbol or a string, describes
the stored secret to clear; if nil, then set it to 'secret.
Note, FIELD does not affect the function logic; it is only used
to display the message:

\(message \"Field %s cleared.\" field)."
  (interactive "i")
  (unless field (setq field 'secret))
  (when password-store-timeout-timer
    (cancel-timer password-store-timeout-timer)
    (setq password-store-timeout-timer nil))
  (when password-store-kill-ring-pointer
    (setcar password-store-kill-ring-pointer "")
    (setq password-store-kill-ring-pointer nil)
    (message "Field %s cleared." field)))

(defun password-store--save-field-in-kill-ring (entry secret field)
  (password-store-clear field)
  (kill-new secret)
  (setq password-store-kill-ring-pointer kill-ring-yank-pointer)
  (message "Copied %s for %s to the kill ring. Will clear in %s seconds."
           field entry password-store-time-before-clipboard-restore)
  (setq password-store-timeout-timer
        (run-at-time password-store-time-before-clipboard-restore nil
                     (lambda () (funcall #'password-store-clear field)))))

;;;###autoload
(defun password-store-copy (entry)
  "Add password for ENTRY into the kill ring.

Clear previous password from the kill ring.  Pointer to the kill ring
is stored in `password-store-kill-ring-pointer'.  Password is cleared
after `password-store-time-before-clipboard-restore' seconds."
  (interactive (list (password-store--completing-read t)))
  (password-store-get
   entry
   (lambda (password)
     (password-store--save-field-in-kill-ring entry password 'secret))))

;;;###autoload
(defun password-store-copy-field (entry field)
  "Add FIELD for ENTRY into the kill ring.

Clear previous secret from the kill ring.  Pointer to the kill ring is
stored in `password-store-kill-ring-pointer'.  Secret field is cleared
after `password-store-timeout' seconds.
If FIELD equals to symbol secret, then this function reduces to `password-store-copy'."
  (interactive
   (let ((entry (password-store--completing-read)))
     (list entry (password-store-read-field entry))))
  (password-store-get-field
   entry
   field
   (lambda (secret-value)
     (password-store--save-field-in-kill-ring entry secret-value field))))

;;;###autoload
(defun password-store-init (gpg-id)
  "Initialize new password store and use GPG-ID for encryption.

Separate multiple IDs with spaces."
  (interactive (list (read-string "GPG ID: ")))
  (message "%s" (password-store--run-init (split-string gpg-id))))

;;;###autoload
(defun password-store-insert (entry password)
  "Insert a new ENTRY containing PASSWORD."
  (interactive (list (password-store--completing-read)
                     (read-passwd "Password: " t)))
  (let* ((command (format "echo %s | %s insert -m -f %s"
                          (shell-quote-argument password)
                          password-store-executable
                          (shell-quote-argument entry)))
         (ret (process-file-shell-command command)))
    (if (zerop ret)
        (message "Successfully inserted entry for %s" entry)
      (message "Cannot insert entry for %s" entry))
    nil))

;;;###autoload
(defun password-store-generate (entry &optional password-length)
  "Generate a new password for ENTRY with PASSWORD-LENGTH.

Default PASSWORD-LENGTH is `password-store-password-length'."
  (interactive (list (password-store--completing-read)
                     (when current-prefix-arg
                       (abs (prefix-numeric-value current-prefix-arg)))))
  (unless password-length (setq password-length password-store-password-length))
  ;; A message with the output of the command is not printed because
  ;; the output contains the password.
  (password-store--run-generate entry password-length t)
  nil)

;;;###autoload
(defun password-store-remove (entry)
  "Remove existing password for ENTRY."
  (interactive (list (password-store--completing-read t)))
  (message "%s" (password-store--run-remove entry t)))

;;;###autoload
(defun password-store-rename (entry new-entry)
  "Rename ENTRY to NEW-ENTRY."
  (interactive (list (password-store--completing-read t)
                     (read-string "Rename entry to: ")))
  (message "%s" (password-store--run-rename entry new-entry t)))

;;;###autoload
(defun password-store-version ()
  "Show version of pass executable."
  (interactive)
  (message "%s" (password-store--run-version)))

;;;###autoload
(defun password-store-url (entry)
  "Browse URL stored in ENTRY."
  (interactive (list (password-store--completing-read t)))
  (let ((url (password-store-get-field entry password-store-url-field)))
    (if url (browse-url url)
      (error "Field `%s' not found" password-store-url-field))))


(provide 'password-store)

;;; password-store.el ends here