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1 ;;; epa.el --- the EasyPG Assistant -*- lexical-binding: t -*-
2
3 ;; Copyright (C) 2006-2014 Free Software Foundation, Inc.
4
5 ;; Author: Daiki Ueno <ueno@unixuser.org>
6 ;; Keywords: PGP, GnuPG
7
8 ;; This file is part of GNU Emacs.
9
10 ;; GNU Emacs is free software: you can redistribute it and/or modify
11 ;; it under the terms of the GNU General Public License as published by
12 ;; the Free Software Foundation, either version 3 of the License, or
13 ;; (at your option) any later version.
14
15 ;; GNU Emacs is distributed in the hope that it will be useful,
16 ;; but WITHOUT ANY WARRANTY; without even the implied warranty of
17 ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18 ;; GNU General Public License for more details.
19
20 ;; You should have received a copy of the GNU General Public License
21 ;; along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>.
22
23 ;;; Code:
24
25 (require 'epg)
26 (require 'font-lock)
27 (require 'widget)
28 (eval-when-compile (require 'wid-edit))
29 (require 'derived)
30
31 (defgroup epa nil
32 "The EasyPG Assistant"
33 :version "23.1"
34 :link '(custom-manual "(epa) Top")
35 :group 'epg)
36
37 (defcustom epa-popup-info-window t
38 "If non-nil, display status information from epa commands in another window."
39 :type 'boolean
40 :group 'epa)
41
42 (defcustom epa-info-window-height 5
43 "Number of lines used to display status information."
44 :type 'integer
45 :group 'epa)
46
47 (defcustom epa-pinentry-mode nil
48 "The pinentry mode.
49
50 GnuPG 2.1 or later has an option to control the behavior of
51 Pinentry invocation. Possible modes are: `ask', `cancel',
52 `error', and `loopback'. See the GnuPG manual for the meanings.
53
54 In epa commands, a particularly useful mode is `loopback', which
55 redirects all Pinentry queries to the caller, so Emacs can query
56 passphrase through the minibuffer, instead of external Pinentry
57 program."
58 :type '(choice (const nil)
59 (const ask)
60 (const cancel)
61 (const error)
62 (const loopback))
63 :group 'epa
64 :version "25.1")
65
66 (defgroup epa-faces nil
67 "Faces for epa-mode."
68 :version "23.1"
69 :group 'epa)
70
71 (defcustom epa-mail-aliases nil
72 "Alist of aliases of email addresses that stand for encryption keys.
73 Each element is a list of email addresses (ALIAS EXPANSIONS...).
74 When one of the recipients of a message being encrypted is ALIAS,
75 instead of encrypting it for ALIAS, encrypt it for EXPANSIONS...
76
77 If EXPANSIONS is empty, ignore ALIAS as regards encryption.
78 This is a handy way to avoid warnings about addresses that you don't
79 have any key for.
80
81 The command `epa-mail-encrypt' uses this."
82 :type '(repeat (cons (string :tag "Alias") (repeat (string :tag "Expansion"))))
83 :group 'epa
84 :version "24.4")
85
86 (defface epa-validity-high
87 '((default :weight bold)
88 (((class color) (background dark)) :foreground "PaleTurquoise"))
89 "Face for high validity EPA information."
90 :group 'epa-faces)
91
92 (defface epa-validity-medium
93 '((default :slant italic)
94 (((class color) (background dark)) :foreground "PaleTurquoise"))
95 "Face for medium validity EPA information."
96 :group 'epa-faces)
97
98 (defface epa-validity-low
99 '((t :slant italic))
100 "Face used for displaying the low validity."
101 :group 'epa-faces)
102
103 (defface epa-validity-disabled
104 '((t :slant italic :inverse-video t))
105 "Face used for displaying the disabled validity."
106 :group 'epa-faces)
107
108 (defface epa-string
109 '((((class color) (background dark))
110 :foreground "lightyellow")
111 (((class color) (background light))
112 :foreground "blue4"))
113 "Face used for displaying the string."
114 :group 'epa-faces)
115
116 (defface epa-mark
117 '((default :weight bold)
118 (((class color) (background dark)) :foreground "orange")
119 (((class color) (background light)) :foreground "red"))
120 "Face used for displaying the high validity."
121 :group 'epa-faces)
122
123 (defface epa-field-name
124 '((default :weight bold)
125 (((class color) (background dark)) :foreground "PaleTurquoise"))
126 "Face for the name of the attribute field."
127 :group 'epa)
128
129 (defface epa-field-body
130 '((default :slant italic)
131 (((class color) (background dark)) :foreground "turquoise"))
132 "Face for the body of the attribute field."
133 :group 'epa)
134
135 (defcustom epa-validity-face-alist
136 '((unknown . epa-validity-disabled)
137 (invalid . epa-validity-disabled)
138 (disabled . epa-validity-disabled)
139 (revoked . epa-validity-disabled)
140 (expired . epa-validity-disabled)
141 (none . epa-validity-low)
142 (undefined . epa-validity-low)
143 (never . epa-validity-low)
144 (marginal . epa-validity-medium)
145 (full . epa-validity-high)
146 (ultimate . epa-validity-high))
147 "An alist mapping validity values to faces."
148 :type '(repeat (cons symbol face))
149 :group 'epa)
150
151 (defvar epa-font-lock-keywords
152 '(("^\\*"
153 (0 'epa-mark))
154 ("^\t\\([^\t:]+:\\)[ \t]*\\(.*\\)$"
155 (1 'epa-field-name)
156 (2 'epa-field-body)))
157 "Default expressions to addon in epa-mode.")
158
159 (defconst epa-pubkey-algorithm-letter-alist
160 '((1 . ?R)
161 (2 . ?r)
162 (3 . ?s)
163 (16 . ?g)
164 (17 . ?D)
165 (20 . ?G)))
166
167 (defvar epa-protocol 'OpenPGP
168 "The default protocol.
169 The value can be either OpenPGP or CMS.
170
171 You should bind this variable with `let', but do not set it globally.")
172
173 (defvar epa-armor nil
174 "If non-nil, epa commands create ASCII armored output.
175
176 You should bind this variable with `let', but do not set it globally.")
177
178 (defvar epa-textmode nil
179 "If non-nil, epa commands treat input files as text.
180
181 You should bind this variable with `let', but do not set it globally.")
182
183 (defvar epa-keys-buffer nil)
184 (defvar epa-key-buffer-alist nil)
185 (defvar epa-key nil)
186 (defvar epa-list-keys-arguments nil)
187 (defvar epa-info-buffer nil)
188 (defvar epa-error-buffer nil)
189 (defvar epa-last-coding-system-specified nil)
190
191 (defvar epa-key-list-mode-map
192 (let ((keymap (make-sparse-keymap))
193 (menu-map (make-sparse-keymap)))
194 (define-key keymap "m" 'epa-mark-key)
195 (define-key keymap "u" 'epa-unmark-key)
196 (define-key keymap "d" 'epa-decrypt-file)
197 (define-key keymap "v" 'epa-verify-file)
198 (define-key keymap "s" 'epa-sign-file)
199 (define-key keymap "e" 'epa-encrypt-file)
200 (define-key keymap "r" 'epa-delete-keys)
201 (define-key keymap "i" 'epa-import-keys)
202 (define-key keymap "o" 'epa-export-keys)
203 (define-key keymap "g" 'revert-buffer)
204 (define-key keymap "n" 'next-line)
205 (define-key keymap "p" 'previous-line)
206 (define-key keymap " " 'scroll-up-command)
207 (define-key keymap [?\S-\ ] 'scroll-down-command)
208 (define-key keymap [delete] 'scroll-down-command)
209 (define-key keymap "q" 'epa-exit-buffer)
210 (define-key keymap [menu-bar epa-key-list-mode] (cons "Keys" menu-map))
211 (define-key menu-map [epa-key-list-unmark-key]
212 '(menu-item "Unmark Key" epa-unmark-key
213 :help "Unmark a key"))
214 (define-key menu-map [epa-key-list-mark-key]
215 '(menu-item "Mark Key" epa-mark-key
216 :help "Mark a key"))
217 (define-key menu-map [separator-epa-file] '(menu-item "--"))
218 (define-key menu-map [epa-verify-file]
219 '(menu-item "Verify File..." epa-verify-file
220 :help "Verify FILE"))
221 (define-key menu-map [epa-sign-file]
222 '(menu-item "Sign File..." epa-sign-file
223 :help "Sign FILE by SIGNERS keys selected"))
224 (define-key menu-map [epa-decrypt-file]
225 '(menu-item "Decrypt File..." epa-decrypt-file
226 :help "Decrypt FILE"))
227 (define-key menu-map [epa-encrypt-file]
228 '(menu-item "Encrypt File..." epa-encrypt-file
229 :help "Encrypt FILE for RECIPIENTS"))
230 (define-key menu-map [separator-epa-key-list] '(menu-item "--"))
231 (define-key menu-map [epa-key-list-delete-keys]
232 '(menu-item "Delete Keys" epa-delete-keys
233 :help "Delete Marked Keys"))
234 (define-key menu-map [epa-key-list-import-keys]
235 '(menu-item "Import Keys" epa-import-keys
236 :help "Import keys from a file"))
237 (define-key menu-map [epa-key-list-export-keys]
238 '(menu-item "Export Keys" epa-export-keys
239 :help "Export marked keys to a file"))
240 keymap))
241
242 (defvar epa-key-mode-map
243 (let ((keymap (make-sparse-keymap)))
244 (define-key keymap "q" 'epa-exit-buffer)
245 keymap))
246
247 (defvar epa-info-mode-map
248 (let ((keymap (make-sparse-keymap)))
249 (define-key keymap "q" 'delete-window)
250 keymap))
251
252 (defvar epa-exit-buffer-function #'bury-buffer)
253
254 (define-widget 'epa-key 'push-button
255 "Button for representing a epg-key object."
256 :format "%[%v%]"
257 :button-face-get 'epa--key-widget-button-face-get
258 :value-create 'epa--key-widget-value-create
259 :action 'epa--key-widget-action
260 :help-echo 'epa--key-widget-help-echo)
261
262 (defun epa--key-widget-action (widget &optional _event)
263 (save-selected-window
264 (epa--show-key (widget-get widget :value))))
265
266 (defun epa--key-widget-value-create (widget)
267 (let* ((key (widget-get widget :value))
268 (primary-sub-key (car (epg-key-sub-key-list key)))
269 (primary-user-id (car (epg-key-user-id-list key))))
270 (insert (format "%c "
271 (if (epg-sub-key-validity primary-sub-key)
272 (car (rassq (epg-sub-key-validity primary-sub-key)
273 epg-key-validity-alist))
274 ? ))
275 (epg-sub-key-id primary-sub-key)
276 " "
277 (if primary-user-id
278 (if (stringp (epg-user-id-string primary-user-id))
279 (epg-user-id-string primary-user-id)
280 (epg-decode-dn (epg-user-id-string primary-user-id)))
281 ""))))
282
283 (defun epa--key-widget-button-face-get (widget)
284 (let ((validity (epg-sub-key-validity (car (epg-key-sub-key-list
285 (widget-get widget :value))))))
286 (if validity
287 (cdr (assq validity epa-validity-face-alist))
288 'default)))
289
290 (defun epa--key-widget-help-echo (widget)
291 (format "Show %s"
292 (epg-sub-key-id (car (epg-key-sub-key-list
293 (widget-get widget :value))))))
294
295 (defalias 'epa--encode-coding-string
296 (if (fboundp 'encode-coding-string) #'encode-coding-string #'identity))
297
298 (defalias 'epa--decode-coding-string
299 (if (fboundp 'decode-coding-string) #'decode-coding-string #'identity))
300
301 (define-derived-mode epa-key-list-mode special-mode "Keys"
302 "Major mode for `epa-list-keys'."
303 (buffer-disable-undo)
304 (setq truncate-lines t
305 buffer-read-only t)
306 (setq-local font-lock-defaults '(epa-font-lock-keywords t))
307 ;; In XEmacs, auto-initialization of font-lock is not effective
308 ;; if buffer-file-name is not set.
309 (font-lock-set-defaults)
310 (make-local-variable 'epa-exit-buffer-function)
311 (setq-local revert-buffer-function #'epa--key-list-revert-buffer))
312
313 (define-derived-mode epa-key-mode special-mode "Key"
314 "Major mode for a key description."
315 (buffer-disable-undo)
316 (setq truncate-lines t
317 buffer-read-only t)
318 (setq-local font-lock-defaults '(epa-font-lock-keywords t))
319 ;; In XEmacs, auto-initialization of font-lock is not effective
320 ;; if buffer-file-name is not set.
321 (font-lock-set-defaults)
322 (make-local-variable 'epa-exit-buffer-function))
323
324 (define-derived-mode epa-info-mode special-mode "Info"
325 "Major mode for `epa-info-buffer'."
326 (buffer-disable-undo)
327 (setq truncate-lines t
328 buffer-read-only t))
329
330 (defun epa-mark-key (&optional arg)
331 "Mark a key on the current line.
332 If ARG is non-nil, unmark the key."
333 (interactive "P")
334 (let ((inhibit-read-only t)
335 buffer-read-only
336 properties)
337 (beginning-of-line)
338 (unless (get-text-property (point) 'epa-key)
339 (error "No key on this line"))
340 (setq properties (text-properties-at (point)))
341 (delete-char 1)
342 (insert (if arg " " "*"))
343 (set-text-properties (1- (point)) (point) properties)
344 (forward-line)))
345
346 (defun epa-unmark-key (&optional arg)
347 "Unmark a key on the current line.
348 If ARG is non-nil, mark the key."
349 (interactive "P")
350 (epa-mark-key (not arg)))
351
352 (defun epa-exit-buffer ()
353 "Exit the current buffer.
354 `epa-exit-buffer-function' is called if it is set."
355 (interactive)
356 (funcall epa-exit-buffer-function))
357
358 (defun epa--insert-keys (keys)
359 (save-excursion
360 (save-restriction
361 (narrow-to-region (point) (point))
362 (let (point)
363 (while keys
364 (setq point (point))
365 (insert " ")
366 (add-text-properties point (point)
367 (list 'epa-key (car keys)
368 'front-sticky nil
369 'rear-nonsticky t
370 'start-open t
371 'end-open t))
372 (widget-create 'epa-key :value (car keys))
373 (insert "\n")
374 (setq keys (cdr keys))))
375 (add-text-properties (point-min) (point-max)
376 (list 'epa-list-keys t
377 'front-sticky nil
378 'rear-nonsticky t
379 'start-open t
380 'end-open t)))))
381
382 (defun epa--list-keys (name secret)
383 (unless (and epa-keys-buffer
384 (buffer-live-p epa-keys-buffer))
385 (setq epa-keys-buffer (generate-new-buffer "*Keys*")))
386 (set-buffer epa-keys-buffer)
387 (epa-key-list-mode)
388 (let ((inhibit-read-only t)
389 buffer-read-only
390 (point (point-min))
391 (context (epg-make-context epa-protocol)))
392 (unless (get-text-property point 'epa-list-keys)
393 (setq point (next-single-property-change point 'epa-list-keys)))
394 (when point
395 (delete-region point
396 (or (next-single-property-change point 'epa-list-keys)
397 (point-max)))
398 (goto-char point))
399 (epa--insert-keys (epg-list-keys context name secret))
400 (widget-setup)
401 (set-keymap-parent (current-local-map) widget-keymap))
402 (make-local-variable 'epa-list-keys-arguments)
403 (setq epa-list-keys-arguments (list name secret))
404 (goto-char (point-min))
405 (pop-to-buffer (current-buffer)))
406
407 ;;;###autoload
408 (defun epa-list-keys (&optional name)
409 "List all keys matched with NAME from the public keyring."
410 (interactive
411 (if current-prefix-arg
412 (let ((name (read-string "Pattern: "
413 (if epa-list-keys-arguments
414 (car epa-list-keys-arguments)))))
415 (list (if (equal name "") nil name)))
416 (list nil)))
417 (epa--list-keys name nil))
418
419 ;;;###autoload
420 (defun epa-list-secret-keys (&optional name)
421 "List all keys matched with NAME from the private keyring."
422 (interactive
423 (if current-prefix-arg
424 (let ((name (read-string "Pattern: "
425 (if epa-list-keys-arguments
426 (car epa-list-keys-arguments)))))
427 (list (if (equal name "") nil name)))
428 (list nil)))
429 (epa--list-keys name t))
430
431 (defun epa--key-list-revert-buffer (&optional _ignore-auto _noconfirm)
432 (apply #'epa--list-keys epa-list-keys-arguments))
433
434 (defun epa--marked-keys ()
435 (or (with-current-buffer epa-keys-buffer
436 (goto-char (point-min))
437 (let (keys key)
438 (while (re-search-forward "^\\*" nil t)
439 (if (setq key (get-text-property (match-beginning 0)
440 'epa-key))
441 (setq keys (cons key keys))))
442 (nreverse keys)))
443 (let ((key (get-text-property (point-at-bol) 'epa-key)))
444 (if key
445 (list key)))))
446
447 (defun epa--select-keys (prompt keys)
448 (unless (and epa-keys-buffer
449 (buffer-live-p epa-keys-buffer))
450 (setq epa-keys-buffer (generate-new-buffer "*Keys*")))
451 (with-current-buffer epa-keys-buffer
452 (epa-key-list-mode)
453 ;; C-c C-c is the usual way to finish the selection (bug#11159).
454 (define-key (current-local-map) "\C-c\C-c" 'exit-recursive-edit)
455 (let ((inhibit-read-only t)
456 buffer-read-only)
457 (erase-buffer)
458 (insert prompt "\n"
459 (substitute-command-keys "\
460 - `\\[epa-mark-key]' to mark a key on the line
461 - `\\[epa-unmark-key]' to unmark a key on the line\n"))
462 (widget-create 'link
463 :notify (lambda (&rest _ignore) (abort-recursive-edit))
464 :help-echo
465 (substitute-command-keys
466 "Click here or \\[abort-recursive-edit] to cancel")
467 "Cancel")
468 (widget-create 'link
469 :notify (lambda (&rest _ignore) (exit-recursive-edit))
470 :help-echo
471 (substitute-command-keys
472 "Click here or \\[exit-recursive-edit] to finish")
473 "OK")
474 (insert "\n\n")
475 (epa--insert-keys keys)
476 (widget-setup)
477 (set-keymap-parent (current-local-map) widget-keymap)
478 (setq epa-exit-buffer-function #'abort-recursive-edit)
479 (goto-char (point-min))
480 (let ((display-buffer-mark-dedicated 'soft))
481 (pop-to-buffer (current-buffer))))
482 (unwind-protect
483 (progn
484 (recursive-edit)
485 (epa--marked-keys))
486 (kill-buffer epa-keys-buffer))))
487
488 ;;;###autoload
489 (defun epa-select-keys (context prompt &optional names secret)
490 "Display a user's keyring and ask him to select keys.
491 CONTEXT is an epg-context.
492 PROMPT is a string to prompt with.
493 NAMES is a list of strings to be matched with keys. If it is nil, all
494 the keys are listed.
495 If SECRET is non-nil, list secret keys instead of public keys."
496 (let ((keys (epg-list-keys context names secret)))
497 (epa--select-keys prompt keys)))
498
499 (defun epa--show-key (key)
500 (let* ((primary-sub-key (car (epg-key-sub-key-list key)))
501 (entry (assoc (epg-sub-key-id primary-sub-key)
502 epa-key-buffer-alist))
503 (inhibit-read-only t)
504 buffer-read-only
505 pointer)
506 (unless entry
507 (setq entry (cons (epg-sub-key-id primary-sub-key) nil)
508 epa-key-buffer-alist (cons entry epa-key-buffer-alist)))
509 (unless (and (cdr entry)
510 (buffer-live-p (cdr entry)))
511 (setcdr entry (generate-new-buffer
512 (format "*Key*%s" (epg-sub-key-id primary-sub-key)))))
513 (set-buffer (cdr entry))
514 (epa-key-mode)
515 (make-local-variable 'epa-key)
516 (setq epa-key key)
517 (erase-buffer)
518 (setq pointer (epg-key-user-id-list key))
519 (while pointer
520 (if (car pointer)
521 (insert " "
522 (if (epg-user-id-validity (car pointer))
523 (char-to-string
524 (car (rassq (epg-user-id-validity (car pointer))
525 epg-key-validity-alist)))
526 " ")
527 " "
528 (if (stringp (epg-user-id-string (car pointer)))
529 (epg-user-id-string (car pointer))
530 (epg-decode-dn (epg-user-id-string (car pointer))))
531 "\n"))
532 (setq pointer (cdr pointer)))
533 (setq pointer (epg-key-sub-key-list key))
534 (while pointer
535 (insert " "
536 (if (epg-sub-key-validity (car pointer))
537 (char-to-string
538 (car (rassq (epg-sub-key-validity (car pointer))
539 epg-key-validity-alist)))
540 " ")
541 " "
542 (epg-sub-key-id (car pointer))
543 " "
544 (format "%dbits"
545 (epg-sub-key-length (car pointer)))
546 " "
547 (cdr (assq (epg-sub-key-algorithm (car pointer))
548 epg-pubkey-algorithm-alist))
549 "\n\tCreated: "
550 (condition-case nil
551 (format-time-string "%Y-%m-%d"
552 (epg-sub-key-creation-time (car pointer)))
553 (error "????-??-??"))
554 (if (epg-sub-key-expiration-time (car pointer))
555 (format (if (time-less-p (current-time)
556 (epg-sub-key-expiration-time
557 (car pointer)))
558 "\n\tExpires: %s"
559 "\n\tExpired: %s")
560 (condition-case nil
561 (format-time-string "%Y-%m-%d"
562 (epg-sub-key-expiration-time
563 (car pointer)))
564 (error "????-??-??")))
565 "")
566 "\n\tCapabilities: "
567 (mapconcat #'symbol-name
568 (epg-sub-key-capability (car pointer))
569 " ")
570 "\n\tFingerprint: "
571 (epg-sub-key-fingerprint (car pointer))
572 "\n")
573 (setq pointer (cdr pointer)))
574 (goto-char (point-min))
575 (pop-to-buffer (current-buffer))))
576
577 (defun epa-display-info (info)
578 (if epa-popup-info-window
579 (save-selected-window
580 (unless (and epa-info-buffer (buffer-live-p epa-info-buffer))
581 (setq epa-info-buffer (generate-new-buffer "*Info*")))
582 (if (get-buffer-window epa-info-buffer)
583 (delete-window (get-buffer-window epa-info-buffer)))
584 (with-current-buffer epa-info-buffer
585 (let ((inhibit-read-only t)
586 buffer-read-only)
587 (erase-buffer)
588 (insert info))
589 (epa-info-mode)
590 (goto-char (point-min)))
591 (if (> (window-height)
592 epa-info-window-height)
593 (set-window-buffer (split-window nil (- (window-height)
594 epa-info-window-height))
595 epa-info-buffer)
596 (pop-to-buffer epa-info-buffer)
597 (if (> (window-height) epa-info-window-height)
598 (shrink-window (- (window-height) epa-info-window-height)))))
599 (message "%s" info)))
600
601 (defun epa-display-error (context)
602 (unless (equal (epg-context-error-output context) "")
603 (let ((buffer (get-buffer-create "*Error*")))
604 (save-selected-window
605 (unless (and epa-error-buffer (buffer-live-p epa-error-buffer))
606 (setq epa-error-buffer (generate-new-buffer "*Error*")))
607 (if (get-buffer-window epa-error-buffer)
608 (delete-window (get-buffer-window epa-error-buffer)))
609 (with-current-buffer buffer
610 (let ((inhibit-read-only t)
611 buffer-read-only)
612 (erase-buffer)
613 (insert (format
614 (pcase (epg-context-operation context)
615 (`decrypt "Error while decrypting with \"%s\":")
616 (`verify "Error while verifying with \"%s\":")
617 (`sign "Error while signing with \"%s\":")
618 (`encrypt "Error while encrypting with \"%s\":")
619 (`import-keys "Error while importing keys with \"%s\":")
620 (`export-keys "Error while exporting keys with \"%s\":")
621 (_ "Error while executing \"%s\":\n\n"))
622 epg-gpg-program)
623 "\n\n"
624 (epg-context-error-output context)))
625 (epa-info-mode)
626 (goto-char (point-min)))
627 (display-buffer buffer)))))
628
629 (defun epa-display-verify-result (verify-result)
630 (declare (obsolete epa-display-info "23.1"))
631 (epa-display-info (epg-verify-result-to-string verify-result)))
632
633 (defun epa-passphrase-callback-function (context key-id handback)
634 (if (eq key-id 'SYM)
635 (read-passwd
636 (format "Passphrase for symmetric encryption%s: "
637 ;; Add the file name to the prompt, if any.
638 (if (stringp handback)
639 (format " for %s" handback)
640 ""))
641 (eq (epg-context-operation context) 'encrypt))
642 (read-passwd
643 (if (eq key-id 'PIN)
644 "Passphrase for PIN: "
645 (let ((entry (assoc key-id epg-user-id-alist)))
646 (if entry
647 (format "Passphrase for %s %s: " key-id (cdr entry))
648 (format "Passphrase for %s: " key-id)))))))
649
650 (defun epa-progress-callback-function (_context what _char current total
651 handback)
652 (let ((prompt (or handback
653 (format "Processing %s: " what))))
654 ;; According to gnupg/doc/DETAIL: a "total" of 0 indicates that
655 ;; the total amount is not known. The condition TOTAL && CUR ==
656 ;; TOTAL may be used to detect the end of an operation.
657 (if (> total 0)
658 (if (= current total)
659 (message "%s...done" prompt)
660 (message "%s...%d%%" prompt
661 (floor (* (/ current (float total)) 100))))
662 (message "%s..." prompt))))
663
664 (defun epa-read-file-name (input)
665 "Interactively read an output file name based on INPUT file name."
666 (setq input (file-name-sans-extension (expand-file-name input)))
667 (expand-file-name
668 (read-file-name
669 (concat "To file (default " (file-name-nondirectory input) ") ")
670 (file-name-directory input)
671 input)))
672
673 ;;;###autoload
674 (defun epa-decrypt-file (decrypt-file &optional plain-file)
675 "Decrypt DECRYPT-FILE into PLAIN-FILE.
676 If you do not specify PLAIN-FILE, this functions prompts for the value to use."
677 (interactive
678 (let* ((file (read-file-name "File to decrypt: "))
679 (plain (epa-read-file-name file)))
680 (list file plain)))
681 (or plain-file (setq plain-file (epa-read-file-name decrypt-file)))
682 (setq decrypt-file (expand-file-name decrypt-file))
683 (let ((context (epg-make-context epa-protocol)))
684 (epg-context-set-passphrase-callback context
685 #'epa-passphrase-callback-function)
686 (epg-context-set-progress-callback context
687 (cons
688 #'epa-progress-callback-function
689 (format "Decrypting %s..."
690 (file-name-nondirectory decrypt-file))))
691 (message "Decrypting %s..." (file-name-nondirectory decrypt-file))
692 (condition-case error
693 (epg-decrypt-file context decrypt-file plain-file)
694 (error
695 (epa-display-error context)
696 (signal (car error) (cdr error))))
697 (message "Decrypting %s...wrote %s" (file-name-nondirectory decrypt-file)
698 (file-name-nondirectory plain-file))
699 (if (epg-context-result-for context 'verify)
700 (epa-display-info (epg-verify-result-to-string
701 (epg-context-result-for context 'verify))))))
702
703 ;;;###autoload
704 (defun epa-verify-file (file)
705 "Verify FILE."
706 (interactive "fFile: ")
707 (setq file (expand-file-name file))
708 (let* ((context (epg-make-context epa-protocol))
709 (plain (if (equal (file-name-extension file) "sig")
710 (file-name-sans-extension file))))
711 (epg-context-set-progress-callback context
712 (cons
713 #'epa-progress-callback-function
714 (format "Verifying %s..."
715 (file-name-nondirectory file))))
716 (message "Verifying %s..." (file-name-nondirectory file))
717 (condition-case error
718 (epg-verify-file context file plain)
719 (error
720 (epa-display-error context)
721 (signal (car error) (cdr error))))
722 (message "Verifying %s...done" (file-name-nondirectory file))
723 (if (epg-context-result-for context 'verify)
724 (epa-display-info (epg-verify-result-to-string
725 (epg-context-result-for context 'verify))))))
726
727 (defun epa--read-signature-type ()
728 (let (type c)
729 (while (null type)
730 (message "Signature type (n,c,d,?) ")
731 (setq c (read-char))
732 (cond ((eq c ?c)
733 (setq type 'clear))
734 ((eq c ?d)
735 (setq type 'detached))
736 ((eq c ??)
737 (with-output-to-temp-buffer "*Help*"
738 (with-current-buffer standard-output
739 (insert "\
740 n - Create a normal signature
741 c - Create a cleartext signature
742 d - Create a detached signature
743 ? - Show this help
744 "))))
745 (t
746 (setq type 'normal))))
747 type))
748
749 ;;;###autoload
750 (defun epa-sign-file (file signers mode)
751 "Sign FILE by SIGNERS keys selected."
752 (interactive
753 (let ((verbose current-prefix-arg))
754 (list (expand-file-name (read-file-name "File: "))
755 (if verbose
756 (epa-select-keys (epg-make-context epa-protocol)
757 "Select keys for signing.
758 If no one is selected, default secret key is used. "
759 nil t))
760 (if verbose
761 (epa--read-signature-type)
762 'clear))))
763 (let ((signature (concat file
764 (if (eq epa-protocol 'OpenPGP)
765 (if (or epa-armor
766 (not (memq mode
767 '(nil t normal detached))))
768 ".asc"
769 (if (memq mode '(t detached))
770 ".sig"
771 ".gpg"))
772 (if (memq mode '(t detached))
773 ".p7s"
774 ".p7m"))))
775 (context (epg-make-context epa-protocol)))
776 (setf (epg-context-armor context) epa-armor)
777 (setf (epg-context-textmode context) epa-textmode)
778 (setf (epg-context-signers context) signers)
779 (setf (epg-context-passphrase-callback context)
780 #'epa-passphrase-callback-function)
781 (setf (epg-context-progress-callback context)
782 (cons
783 #'epa-progress-callback-function
784 (format "Signing %s..."
785 (file-name-nondirectory file))))
786 (if epa-pinentry-mode
787 (setf (epg-context-pinentry-mode context) epa-pinentry-mode))
788 (message "Signing %s..." (file-name-nondirectory file))
789 (condition-case error
790 (epg-sign-file context file signature mode)
791 (error
792 (epa-display-error context)
793 (signal (car error) (cdr error))))
794 (message "Signing %s...wrote %s" (file-name-nondirectory file)
795 (file-name-nondirectory signature))))
796
797 ;;;###autoload
798 (defun epa-encrypt-file (file recipients)
799 "Encrypt FILE for RECIPIENTS."
800 (interactive
801 (list (expand-file-name (read-file-name "File: "))
802 (epa-select-keys (epg-make-context epa-protocol)
803 "Select recipients for encryption.
804 If no one is selected, symmetric encryption will be performed. ")))
805 (let ((cipher (concat file (if (eq epa-protocol 'OpenPGP)
806 (if epa-armor ".asc" ".gpg")
807 ".p7m")))
808 (context (epg-make-context epa-protocol)))
809 (setf (epg-context-armor context) epa-armor)
810 (setf (epg-context-textmode context) epa-textmode)
811 (setf (epg-context-passphrase-callback context)
812 #'epa-passphrase-callback-function)
813 (setf (epg-context-progress-callback context)
814 (cons
815 #'epa-progress-callback-function
816 (format "Encrypting %s..."
817 (file-name-nondirectory file))))
818 (if epa-pinentry-mode
819 (setf (epg-context-pinentry-mode context) epa-pinentry-mode))
820 (message "Encrypting %s..." (file-name-nondirectory file))
821 (condition-case error
822 (epg-encrypt-file context file recipients cipher)
823 (error
824 (epa-display-error context)
825 (signal (car error) (cdr error))))
826 (message "Encrypting %s...wrote %s" (file-name-nondirectory file)
827 (file-name-nondirectory cipher))))
828
829 ;;;###autoload
830 (defun epa-decrypt-region (start end &optional make-buffer-function)
831 "Decrypt the current region between START and END.
832
833 If MAKE-BUFFER-FUNCTION is non-nil, call it to prepare an output buffer.
834 It should return that buffer. If it copies the input, it should
835 delete the text now being decrypted. It should leave point at the
836 proper place to insert the plaintext.
837
838 Be careful about using this command in Lisp programs!
839 Since this function operates on regions, it does some tricks such
840 as coding-system detection and unibyte/multibyte conversion. If
841 you are sure how the data in the region should be treated, you
842 should consider using the string based counterpart
843 `epg-decrypt-string', or the file based counterpart
844 `epg-decrypt-file' instead.
845
846 For example:
847
848 \(let ((context (epg-make-context 'OpenPGP)))
849 (decode-coding-string
850 (epg-decrypt-string context (buffer-substring start end))
851 'utf-8))"
852 (interactive "r")
853 (save-excursion
854 (let ((context (epg-make-context epa-protocol))
855 plain)
856 (setf (epg-context-passphrase-callback context)
857 #'epa-passphrase-callback-function)
858 (setf (epg-context-progress-callback context)
859 (cons
860 #'epa-progress-callback-function
861 "Decrypting..."))
862 (if epa-pinentry-mode
863 (setf (epg-context-pinentry-mode context) epa-pinentry-mode))
864 (message "Decrypting...")
865 (condition-case error
866 (setq plain (epg-decrypt-string context (buffer-substring start end)))
867 (error
868 (epa-display-error context)
869 (signal (car error) (cdr error))))
870 (message "Decrypting...done")
871 (setq plain (epa--decode-coding-string
872 plain
873 (or coding-system-for-read
874 (get-text-property start 'epa-coding-system-used)
875 'undecided)))
876 (if make-buffer-function
877 (with-current-buffer (funcall make-buffer-function)
878 (let ((inhibit-read-only t))
879 (insert plain)))
880 (if (y-or-n-p "Replace the original text? ")
881 (let ((inhibit-read-only t))
882 (delete-region start end)
883 (goto-char start)
884 (insert plain))
885 (with-output-to-temp-buffer "*Temp*"
886 (set-buffer standard-output)
887 (insert plain)
888 (epa-info-mode))))
889 (if (epg-context-result-for context 'verify)
890 (epa-display-info (epg-verify-result-to-string
891 (epg-context-result-for context 'verify)))))))
892
893 (defun epa--find-coding-system-for-mime-charset (mime-charset)
894 (if (featurep 'xemacs)
895 (if (fboundp 'find-coding-system)
896 (find-coding-system mime-charset))
897 ;; Find the first coding system which corresponds to MIME-CHARSET.
898 (let ((pointer (coding-system-list)))
899 (while (and pointer
900 (not (eq (coding-system-get (car pointer) 'mime-charset)
901 mime-charset)))
902 (setq pointer (cdr pointer)))
903 (car pointer))))
904
905 ;;;###autoload
906 (defun epa-decrypt-armor-in-region (start end)
907 "Decrypt OpenPGP armors in the current region between START and END.
908
909 Don't use this command in Lisp programs!
910 See the reason described in the `epa-decrypt-region' documentation."
911 (declare (interactive-only t))
912 (interactive "r")
913 (save-excursion
914 (save-restriction
915 (narrow-to-region start end)
916 (goto-char start)
917 (let (armor-start armor-end)
918 (while (re-search-forward "-----BEGIN PGP MESSAGE-----$" nil t)
919 (setq armor-start (match-beginning 0)
920 armor-end (re-search-forward "^-----END PGP MESSAGE-----$"
921 nil t))
922 (unless armor-end
923 (error "Encryption armor beginning has no matching end"))
924 (goto-char armor-start)
925 (let ((coding-system-for-read
926 (or coding-system-for-read
927 (if (re-search-forward "^Charset: \\(.*\\)" armor-end t)
928 (epa--find-coding-system-for-mime-charset
929 (intern (downcase (match-string 1))))))))
930 (goto-char armor-end)
931 (epa-decrypt-region armor-start armor-end)))))))
932
933 ;;;###autoload
934 (defun epa-verify-region (start end)
935 "Verify the current region between START and END.
936
937 Don't use this command in Lisp programs!
938 Since this function operates on regions, it does some tricks such
939 as coding-system detection and unibyte/multibyte conversion. If
940 you are sure how the data in the region should be treated, you
941 should consider using the string based counterpart
942 `epg-verify-string', or the file based counterpart
943 `epg-verify-file' instead.
944
945 For example:
946
947 \(let ((context (epg-make-context 'OpenPGP)))
948 (decode-coding-string
949 (epg-verify-string context (buffer-substring start end))
950 'utf-8))"
951 (declare (interactive-only t))
952 (interactive "r")
953 (let ((context (epg-make-context epa-protocol))
954 plain)
955 (setf (epg-context-progress-callback context)
956 (cons
957 #'epa-progress-callback-function
958 "Verifying..."))
959 (message "Verifying...")
960 (condition-case error
961 (setq plain (epg-verify-string
962 context
963 (epa--encode-coding-string
964 (buffer-substring start end)
965 (or coding-system-for-write
966 (get-text-property start 'epa-coding-system-used)))))
967 (error
968 (epa-display-error context)
969 (signal (car error) (cdr error))))
970 (message "Verifying...done")
971 (setq plain (epa--decode-coding-string
972 plain
973 (or coding-system-for-read
974 (get-text-property start 'epa-coding-system-used)
975 'undecided)))
976 (if (y-or-n-p "Replace the original text? ")
977 (let ((inhibit-read-only t)
978 buffer-read-only)
979 (delete-region start end)
980 (goto-char start)
981 (insert plain))
982 (with-output-to-temp-buffer "*Temp*"
983 (set-buffer standard-output)
984 (insert plain)
985 (epa-info-mode)))
986 (if (epg-context-result-for context 'verify)
987 (epa-display-info (epg-verify-result-to-string
988 (epg-context-result-for context 'verify))))))
989
990 ;;;###autoload
991 (defun epa-verify-cleartext-in-region (start end)
992 "Verify OpenPGP cleartext signed messages in the current region
993 between START and END.
994
995 Don't use this command in Lisp programs!
996 See the reason described in the `epa-verify-region' documentation."
997 (declare (interactive-only t))
998 (interactive "r")
999 (save-excursion
1000 (save-restriction
1001 (narrow-to-region start end)
1002 (goto-char start)
1003 (let (cleartext-start cleartext-end)
1004 (while (re-search-forward "-----BEGIN PGP SIGNED MESSAGE-----$"
1005 nil t)
1006 (setq cleartext-start (match-beginning 0))
1007 (unless (re-search-forward "^-----BEGIN PGP SIGNATURE-----$"
1008 nil t)
1009 (error "Invalid cleartext signed message"))
1010 (setq cleartext-end (re-search-forward
1011 "^-----END PGP SIGNATURE-----$"
1012 nil t))
1013 (unless cleartext-end
1014 (error "No cleartext tail"))
1015 (epa-verify-region cleartext-start cleartext-end))))))
1016
1017 (defalias 'epa--select-safe-coding-system
1018 (if (fboundp 'select-safe-coding-system)
1019 #'select-safe-coding-system
1020 (lambda (_from _to)
1021 buffer-file-coding-system)))
1022
1023 ;;;###autoload
1024 (defun epa-sign-region (start end signers mode)
1025 "Sign the current region between START and END by SIGNERS keys selected.
1026
1027 Don't use this command in Lisp programs!
1028 Since this function operates on regions, it does some tricks such
1029 as coding-system detection and unibyte/multibyte conversion. If
1030 you are sure how the data should be treated, you should consider
1031 using the string based counterpart `epg-sign-string', or the file
1032 based counterpart `epg-sign-file' instead.
1033
1034 For example:
1035
1036 \(let ((context (epg-make-context 'OpenPGP)))
1037 (epg-sign-string
1038 context
1039 (encode-coding-string (buffer-substring start end) 'utf-8)))"
1040 (declare (interactive-only t))
1041 (interactive
1042 (let ((verbose current-prefix-arg))
1043 (setq epa-last-coding-system-specified
1044 (or coding-system-for-write
1045 (epa--select-safe-coding-system
1046 (region-beginning) (region-end))))
1047 (list (region-beginning) (region-end)
1048 (if verbose
1049 (epa-select-keys (epg-make-context epa-protocol)
1050 "Select keys for signing.
1051 If no one is selected, default secret key is used. "
1052 nil t))
1053 (if verbose
1054 (epa--read-signature-type)
1055 'clear))))
1056 (save-excursion
1057 (let ((context (epg-make-context epa-protocol))
1058 signature)
1059 ;;(setf (epg-context-armor context) epa-armor)
1060 (setf (epg-context-armor context) t)
1061 ;;(setf (epg-context-textmode context) epa-textmode)
1062 (setf (epg-context-textmode context) t)
1063 (setf (epg-context-signers context) signers)
1064 (setf (epg-context-passphrase-callback context)
1065 #'epa-passphrase-callback-function)
1066 (setf (epg-context-progress-callback context)
1067 (cons
1068 #'epa-progress-callback-function
1069 "Signing..."))
1070 (if epa-pinentry-mode
1071 (setf (epg-context-pinentry-mode context) epa-pinentry-mode))
1072 (message "Signing...")
1073 (condition-case error
1074 (setq signature (epg-sign-string context
1075 (epa--encode-coding-string
1076 (buffer-substring start end)
1077 epa-last-coding-system-specified)
1078 mode))
1079 (error
1080 (epa-display-error context)
1081 (signal (car error) (cdr error))))
1082 (message "Signing...done")
1083 (delete-region start end)
1084 (goto-char start)
1085 (add-text-properties (point)
1086 (progn
1087 (insert (epa--decode-coding-string
1088 signature
1089 (or coding-system-for-read
1090 epa-last-coding-system-specified)))
1091 (point))
1092 (list 'epa-coding-system-used
1093 epa-last-coding-system-specified
1094 'front-sticky nil
1095 'rear-nonsticky t
1096 'start-open t
1097 'end-open t)))))
1098
1099 (defalias 'epa--derived-mode-p
1100 (if (fboundp 'derived-mode-p)
1101 #'derived-mode-p
1102 (lambda (&rest modes)
1103 "Non-nil if the current major mode is derived from one of MODES.
1104 Uses the `derived-mode-parent' property of the symbol to trace backwards."
1105 (let ((parent major-mode))
1106 (while (and (not (memq parent modes))
1107 (setq parent (get parent 'derived-mode-parent))))
1108 parent))))
1109
1110 ;;;###autoload
1111 (defun epa-encrypt-region (start end recipients sign signers)
1112 "Encrypt the current region between START and END for RECIPIENTS.
1113
1114 Don't use this command in Lisp programs!
1115 Since this function operates on regions, it does some tricks such
1116 as coding-system detection and unibyte/multibyte conversion. If
1117 you are sure how the data should be treated, you should consider
1118 using the string based counterpart `epg-encrypt-string', or the
1119 file based counterpart `epg-encrypt-file' instead.
1120
1121 For example:
1122
1123 \(let ((context (epg-make-context 'OpenPGP)))
1124 (epg-encrypt-string
1125 context
1126 (encode-coding-string (buffer-substring start end) 'utf-8)
1127 nil))"
1128 (declare (interactive-only t))
1129 (interactive
1130 (let ((verbose current-prefix-arg)
1131 (context (epg-make-context epa-protocol))
1132 sign)
1133 (setq epa-last-coding-system-specified
1134 (or coding-system-for-write
1135 (epa--select-safe-coding-system
1136 (region-beginning) (region-end))))
1137 (list (region-beginning) (region-end)
1138 (epa-select-keys context
1139 "Select recipients for encryption.
1140 If no one is selected, symmetric encryption will be performed. ")
1141 (setq sign (if verbose (y-or-n-p "Sign? ")))
1142 (if sign
1143 (epa-select-keys context
1144 "Select keys for signing. ")))))
1145 (save-excursion
1146 (let ((context (epg-make-context epa-protocol))
1147 cipher)
1148 ;;(setf (epg-context-armor context) epa-armor)
1149 (setf (epg-context-armor context) t)
1150 ;;(setf (epg-context-textmode context) epa-textmode)
1151 (setf (epg-context-textmode context) t)
1152 (if sign
1153 (setf (epg-context-signers context) signers))
1154 (setf (epg-context-passphrase-callback context)
1155 #'epa-passphrase-callback-function)
1156 (setf (epg-context-progress-callback context)
1157 (cons
1158 #'epa-progress-callback-function
1159 "Encrypting..."))
1160 (if epa-pinentry-mode
1161 (setf (epg-context-pinentry-mode context) epa-pinentry-mode))
1162 (message "Encrypting...")
1163 (condition-case error
1164 (setq cipher (epg-encrypt-string context
1165 (epa--encode-coding-string
1166 (buffer-substring start end)
1167 epa-last-coding-system-specified)
1168 recipients
1169 sign))
1170 (error
1171 (epa-display-error context)
1172 (signal (car error) (cdr error))))
1173 (message "Encrypting...done")
1174 (delete-region start end)
1175 (goto-char start)
1176 (add-text-properties (point)
1177 (progn
1178 (insert cipher)
1179 (point))
1180 (list 'epa-coding-system-used
1181 epa-last-coding-system-specified
1182 'front-sticky nil
1183 'rear-nonsticky t
1184 'start-open t
1185 'end-open t)))))
1186
1187 ;;;###autoload
1188 (defun epa-delete-keys (keys &optional allow-secret)
1189 "Delete selected KEYS."
1190 (interactive
1191 (let ((keys (epa--marked-keys)))
1192 (unless keys
1193 (error "No keys selected"))
1194 (list keys
1195 (eq (nth 1 epa-list-keys-arguments) t))))
1196 (let ((context (epg-make-context epa-protocol)))
1197 (message "Deleting...")
1198 (condition-case error
1199 (epg-delete-keys context keys allow-secret)
1200 (error
1201 (epa-display-error context)
1202 (signal (car error) (cdr error))))
1203 (message "Deleting...done")
1204 (apply #'epa--list-keys epa-list-keys-arguments)))
1205
1206 ;;;###autoload
1207 (defun epa-import-keys (file)
1208 "Import keys from FILE."
1209 (interactive "fFile: ")
1210 (setq file (expand-file-name file))
1211 (let ((context (epg-make-context epa-protocol)))
1212 (message "Importing %s..." (file-name-nondirectory file))
1213 (condition-case nil
1214 (progn
1215 (epg-import-keys-from-file context file)
1216 (message "Importing %s...done" (file-name-nondirectory file)))
1217 (error
1218 (epa-display-error context)
1219 (message "Importing %s...failed" (file-name-nondirectory file))))
1220 (if (epg-context-result-for context 'import)
1221 (epa-display-info (epg-import-result-to-string
1222 (epg-context-result-for context 'import))))
1223 ;; FIXME: Why not use the (otherwise unused) epa--derived-mode-p?
1224 (if (eq major-mode 'epa-key-list-mode)
1225 (apply #'epa--list-keys epa-list-keys-arguments))))
1226
1227 ;;;###autoload
1228 (defun epa-import-keys-region (start end)
1229 "Import keys from the region."
1230 (interactive "r")
1231 (let ((context (epg-make-context epa-protocol)))
1232 (message "Importing...")
1233 (condition-case nil
1234 (progn
1235 (epg-import-keys-from-string context (buffer-substring start end))
1236 (message "Importing...done"))
1237 (error
1238 (epa-display-error context)
1239 (message "Importing...failed")))
1240 (if (epg-context-result-for context 'import)
1241 (epa-display-info (epg-import-result-to-string
1242 (epg-context-result-for context 'import))))))
1243
1244 ;;;###autoload
1245 (defun epa-import-armor-in-region (start end)
1246 "Import keys in the OpenPGP armor format in the current region
1247 between START and END."
1248 (interactive "r")
1249 (save-excursion
1250 (save-restriction
1251 (narrow-to-region start end)
1252 (goto-char start)
1253 (let (armor-start armor-end)
1254 (while (re-search-forward
1255 "-----BEGIN \\(PGP \\(PUBLIC\\|PRIVATE\\) KEY BLOCK\\)-----$"
1256 nil t)
1257 (setq armor-start (match-beginning 0)
1258 armor-end (re-search-forward
1259 (concat "^-----END " (match-string 1) "-----$")
1260 nil t))
1261 (unless armor-end
1262 (error "No armor tail"))
1263 (epa-import-keys-region armor-start armor-end))))))
1264
1265 ;;;###autoload
1266 (defun epa-export-keys (keys file)
1267 "Export selected KEYS to FILE."
1268 (interactive
1269 (let ((keys (epa--marked-keys))
1270 default-name)
1271 (unless keys
1272 (error "No keys selected"))
1273 (setq default-name
1274 (expand-file-name
1275 (concat (epg-sub-key-id (car (epg-key-sub-key-list (car keys))))
1276 (if epa-armor ".asc" ".gpg"))
1277 default-directory))
1278 (list keys
1279 (expand-file-name
1280 (read-file-name
1281 (concat "To file (default "
1282 (file-name-nondirectory default-name)
1283 ") ")
1284 (file-name-directory default-name)
1285 default-name)))))
1286 (let ((context (epg-make-context epa-protocol)))
1287 (setf (epg-context-armor context) epa-armor)
1288 (message "Exporting to %s..." (file-name-nondirectory file))
1289 (condition-case error
1290 (epg-export-keys-to-file context keys file)
1291 (error
1292 (epa-display-error context)
1293 (signal (car error) (cdr error))))
1294 (message "Exporting to %s...done" (file-name-nondirectory file))))
1295
1296 ;;;###autoload
1297 (defun epa-insert-keys (keys)
1298 "Insert selected KEYS after the point."
1299 (interactive
1300 (list (epa-select-keys (epg-make-context epa-protocol)
1301 "Select keys to export.
1302 If no one is selected, default public key is exported. ")))
1303 (let ((context (epg-make-context epa-protocol)))
1304 ;;(setf (epg-context-armor context) epa-armor)
1305 (setf (epg-context-armor context) t)
1306 (condition-case error
1307 (insert (epg-export-keys-to-string context keys))
1308 (error
1309 (epa-display-error context)
1310 (signal (car error) (cdr error))))))
1311
1312 ;; (defun epa-sign-keys (keys &optional local)
1313 ;; "Sign selected KEYS.
1314 ;; If a prefix-arg is specified, the signature is marked as non exportable.
1315
1316 ;; Don't use this command in Lisp programs!"
1317 ;; (declare (interactive-only t))
1318 ;; (interactive
1319 ;; (let ((keys (epa--marked-keys)))
1320 ;; (unless keys
1321 ;; (error "No keys selected"))
1322 ;; (list keys current-prefix-arg)))
1323 ;; (let ((context (epg-make-context epa-protocol)))
1324 ;; (setf (epg-context-passphrase-callback context)
1325 ;; #'epa-passphrase-callback-function)
1326 ;; (setf (epg-context-progress-callback context)
1327 ;; (cons
1328 ;; #'epa-progress-callback-function
1329 ;; "Signing keys..."))
1330 ;; (if epa-pinentry-mode
1331 ;; (setf (epg-context-pinentry-mode context) epa-pinentry-mode))
1332 ;; (message "Signing keys...")
1333 ;; (epg-sign-keys context keys local)
1334 ;; (message "Signing keys...done")))
1335 ;; (make-obsolete 'epa-sign-keys "Do not use.")
1336
1337 (provide 'epa)
1338
1339 ;;; epa.el ends here