1 ;;; mml2015.el --- MIME Security with Pretty Good Privacy (PGP)
2 ;; Copyright (C) 2000, 2001, 2002 Free Software Foundation, Inc.
4 ;; Author: Shenghuo Zhu <zsh@cs.rochester.edu>
5 ;; Keywords: PGP MIME MML
7 ;; This file is part of GNU Emacs.
9 ;; GNU Emacs is free software; you can redistribute it and/or modify
10 ;; it under the terms of the GNU General Public License as published
11 ;; by the Free Software Foundation; either version 2, or (at your
12 ;; option) any later version.
14 ;; GNU Emacs is distributed in the hope that it will be useful, but
15 ;; WITHOUT ANY WARRANTY; without even the implied warranty of
16 ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
17 ;; General Public License for more details.
19 ;; You should have received a copy of the GNU General Public License
20 ;; along with GNU Emacs; see the file COPYING. If not, write to the
21 ;; Free Software Foundation, Inc., 59 Temple Place - Suite 330,
22 ;; Boston, MA 02111-1307, USA.
26 ;; RFC 2015 is updated by RFC 3156, this file should be compatible
31 (eval-when-compile (require 'cl))
35 (defvar mml2015-use (or
39 (and (fboundp 'pgg-sign-region)
44 (and (fboundp 'gpg-sign-detached)
48 (and (fboundp 'mc-encrypt-generic)
49 (fboundp 'mc-sign-generic)
50 (fboundp 'mc-cleanup-recipient-headers)
52 "The package used for PGP/MIME.")
54 ;; Something is not RFC2015.
55 (defvar mml2015-function-alist
56 '((mailcrypt mml2015-mailcrypt-sign
57 mml2015-mailcrypt-encrypt
58 mml2015-mailcrypt-verify
59 mml2015-mailcrypt-decrypt
60 mml2015-mailcrypt-clear-verify
61 mml2015-mailcrypt-clear-decrypt)
66 mml2015-gpg-clear-verify
67 mml2015-gpg-clear-decrypt)
72 mml2015-pgg-clear-verify
73 mml2015-pgg-clear-decrypt))
74 "Alist of PGP/MIME functions.")
76 (defvar mml2015-result-buffer nil)
78 (defvar mml2015-trust-boundaries-alist
79 '((trust-undefined . nil)
84 "Trust boundaries for a signer's GnuPG key.
85 This alist contains pairs of the form (trust-symbol . boolean), with
86 symbols that are contained in `gpg-unabbrev-trust-alist'. The boolean
87 specifies whether the given trust value is good enough to be trusted
93 (autoload 'mailcrypt-decrypt "mailcrypt")
94 (autoload 'mailcrypt-verify "mailcrypt")
95 (autoload 'mc-pgp-always-sign "mailcrypt")
96 (autoload 'mc-encrypt-generic "mc-toplev")
97 (autoload 'mc-cleanup-recipient-headers "mc-toplev")
98 (autoload 'mc-sign-generic "mc-toplev"))
101 (defvar mc-default-scheme)
104 (defvar mml2015-decrypt-function 'mailcrypt-decrypt)
105 (defvar mml2015-verify-function 'mailcrypt-verify)
107 (defun mml2015-format-error (err)
108 (if (stringp (cadr err))
110 (format "%S" (cdr err))))
112 (defun mml2015-mailcrypt-decrypt (handle ctl)
114 (let (child handles result)
115 (unless (setq child (mm-find-part-by-type
117 "application/octet-stream" nil t))
118 (mm-set-handle-multipart-parameter
119 mm-security-handle 'gnus-info "Corrupted")
120 (throw 'error handle))
122 (mm-insert-part child)
125 (funcall mml2015-decrypt-function)
127 (mm-set-handle-multipart-parameter
128 mm-security-handle 'gnus-details (mml2015-format-error err))
131 (mm-set-handle-multipart-parameter
132 mm-security-handle 'gnus-details "Quit.")
135 (mm-set-handle-multipart-parameter
136 mm-security-handle 'gnus-info "Failed")
137 (throw 'error handle))
138 (setq handles (mm-dissect-buffer t)))
139 (mm-destroy-parts handle)
140 (mm-set-handle-multipart-parameter
141 mm-security-handle 'gnus-info
143 (let ((sig (with-current-buffer mml2015-result-buffer
144 (mml2015-gpg-extract-signature-details))))
145 (concat ", Signer: " sig))))
146 (if (listp (car handles))
150 (defun mml2015-mailcrypt-clear-decrypt ()
154 (funcall mml2015-decrypt-function)
156 (mm-set-handle-multipart-parameter
157 mm-security-handle 'gnus-details (mml2015-format-error err))
160 (mm-set-handle-multipart-parameter
161 mm-security-handle 'gnus-details "Quit.")
164 (mm-set-handle-multipart-parameter
165 mm-security-handle 'gnus-info "OK")
166 (mm-set-handle-multipart-parameter
167 mm-security-handle 'gnus-info "Failed"))))
169 (defun mml2015-fix-micalg (alg)
171 ;; Mutt/1.2.5i has seen sending micalg=php-sha1
172 (upcase (if (string-match "^p[gh]p-" alg)
173 (substring alg (match-end 0))
176 (defun mml2015-mailcrypt-verify (handle ctl)
179 (unless (setq part (mm-find-raw-part-by-type
180 ctl (or (mm-handle-multipart-ctl-parameter
182 "application/pgp-signature")
184 (mm-set-handle-multipart-parameter
185 mm-security-handle 'gnus-info "Corrupted")
186 (throw 'error handle))
188 (insert "-----BEGIN PGP SIGNED MESSAGE-----\n")
189 (insert (format "Hash: %s\n\n"
190 (or (mml2015-fix-micalg
191 (mm-handle-multipart-ctl-parameter
195 (narrow-to-region (point) (point))
197 (goto-char (point-min))
199 (if (looking-at "^-")
202 (unless (setq part (mm-find-part-by-type
203 (cdr handle) "application/pgp-signature" nil t))
204 (mm-set-handle-multipart-parameter
205 mm-security-handle 'gnus-info "Corrupted")
206 (throw 'error handle))
208 (narrow-to-region (point) (point))
209 (mm-insert-part part)
210 (goto-char (point-min))
211 (if (re-search-forward "^-----BEGIN PGP [^-]+-----\r?$" nil t)
212 (replace-match "-----BEGIN PGP SIGNATURE-----" t t))
213 (if (re-search-forward "^-----END PGP [^-]+-----\r?$" nil t)
214 (replace-match "-----END PGP SIGNATURE-----" t t)))
215 (let ((mc-gpg-debug-buffer (get-buffer-create " *gnus gpg debug*")))
216 (unless (condition-case err
218 (funcall mml2015-verify-function)
219 (if (get-buffer " *mailcrypt stderr temp")
220 (mm-set-handle-multipart-parameter
221 mm-security-handle 'gnus-details
222 (with-current-buffer " *mailcrypt stderr temp"
224 (if (get-buffer " *mailcrypt stdout temp")
225 (kill-buffer " *mailcrypt stdout temp"))
226 (if (get-buffer " *mailcrypt stderr temp")
227 (kill-buffer " *mailcrypt stderr temp"))
228 (if (get-buffer " *mailcrypt status temp")
229 (kill-buffer " *mailcrypt status temp"))
230 (if (get-buffer mc-gpg-debug-buffer)
231 (kill-buffer mc-gpg-debug-buffer)))
233 (mm-set-handle-multipart-parameter
234 mm-security-handle 'gnus-details (mml2015-format-error err))
237 (mm-set-handle-multipart-parameter
238 mm-security-handle 'gnus-details "Quit.")
240 (mm-set-handle-multipart-parameter
241 mm-security-handle 'gnus-info "Failed")
242 (throw 'error handle))))
243 (mm-set-handle-multipart-parameter
244 mm-security-handle 'gnus-info "OK")
247 (defun mml2015-mailcrypt-clear-verify ()
248 (let ((mc-gpg-debug-buffer (get-buffer-create " *gnus gpg debug*")))
249 (if (condition-case err
251 (funcall mml2015-verify-function)
252 (if (get-buffer " *mailcrypt stderr temp")
253 (mm-set-handle-multipart-parameter
254 mm-security-handle 'gnus-details
255 (with-current-buffer " *mailcrypt stderr temp"
257 (if (get-buffer " *mailcrypt stdout temp")
258 (kill-buffer " *mailcrypt stdout temp"))
259 (if (get-buffer " *mailcrypt stderr temp")
260 (kill-buffer " *mailcrypt stderr temp"))
261 (if (get-buffer " *mailcrypt status temp")
262 (kill-buffer " *mailcrypt status temp"))
263 (if (get-buffer mc-gpg-debug-buffer)
264 (kill-buffer mc-gpg-debug-buffer)))
266 (mm-set-handle-multipart-parameter
267 mm-security-handle 'gnus-details (mml2015-format-error err))
270 (mm-set-handle-multipart-parameter
271 mm-security-handle 'gnus-details "Quit.")
273 (mm-set-handle-multipart-parameter
274 mm-security-handle 'gnus-info "OK")
275 (mm-set-handle-multipart-parameter
276 mm-security-handle 'gnus-info "Failed"))))
278 (defun mml2015-mailcrypt-sign (cont)
279 (mc-sign-generic (message-options-get 'message-sender)
282 (funcall mml-boundary-function (incf mml-multipart-number)))
284 (goto-char (point-min))
285 (unless (re-search-forward "^-----BEGIN PGP SIGNED MESSAGE-----\r?$" nil t)
286 (error "Cannot find signed begin line"))
287 (goto-char (match-beginning 0))
289 (unless (looking-at "Hash:[ \t]*\\([a-zA-Z0-9]+\\)")
290 (error "Cannot not find PGP hash"))
291 (setq hash (match-string 1))
292 (unless (re-search-forward "^$" nil t)
293 (error "Cannot not find PGP message"))
295 (delete-region (point-min) (point))
296 (insert (format "Content-Type: multipart/signed; boundary=\"%s\";\n"
298 (insert (format "\tmicalg=pgp-%s; protocol=\"application/pgp-signature\"\n"
300 (insert (format "\n--%s\n" boundary))
302 (goto-char (point-max))
303 (unless (re-search-backward "^-----END PGP SIGNATURE-----\r?$" nil t)
304 (error "Cannot find signature part"))
305 (replace-match "-----END PGP MESSAGE-----" t t)
306 (goto-char (match-beginning 0))
307 (unless (re-search-backward "^-----BEGIN PGP SIGNATURE-----\r?$"
309 (error "Cannot find signature part"))
310 (replace-match "-----BEGIN PGP MESSAGE-----" t t)
311 (goto-char (match-beginning 0))
313 (narrow-to-region point (point))
315 (while (re-search-forward "^- -" nil t)
316 (replace-match "-" t t))
317 (goto-char (point-max)))
318 (insert (format "--%s\n" boundary))
319 (insert "Content-Type: application/pgp-signature\n\n")
320 (goto-char (point-max))
321 (insert (format "--%s--\n" boundary))
322 (goto-char (point-max))))
324 (defun mml2015-mailcrypt-encrypt (cont &optional sign)
325 (let ((mc-pgp-always-sign
326 (or mc-pgp-always-sign
328 (eq t (or (message-options-get 'message-sign-encrypt)
330 'message-sign-encrypt
331 (or (y-or-n-p "Sign the message? ")
334 (mm-with-unibyte-current-buffer-mule4
336 (or (message-options-get 'message-recipients)
337 (message-options-set 'message-recipients
338 (mc-cleanup-recipient-headers
339 (read-string "Recipients: "))))
341 (message-options-get 'message-sender))))
342 (goto-char (point-min))
343 (unless (looking-at "-----BEGIN PGP MESSAGE-----")
344 (error "Fail to encrypt the message"))
346 (funcall mml-boundary-function (incf mml-multipart-number))))
347 (insert (format "Content-Type: multipart/encrypted; boundary=\"%s\";\n"
349 (insert "\tprotocol=\"application/pgp-encrypted\"\n\n")
350 (insert (format "--%s\n" boundary))
351 (insert "Content-Type: application/pgp-encrypted\n\n")
352 (insert "Version: 1\n\n")
353 (insert (format "--%s\n" boundary))
354 (insert "Content-Type: application/octet-stream\n\n")
355 (goto-char (point-max))
356 (insert (format "--%s--\n" boundary))
357 (goto-char (point-max))))
362 (autoload 'gpg-decrypt "gpg")
363 (autoload 'gpg-verify "gpg")
364 (autoload 'gpg-verify-cleartext "gpg")
365 (autoload 'gpg-sign-detached "gpg")
366 (autoload 'gpg-sign-encrypt "gpg")
367 (autoload 'gpg-encrypt "gpg")
368 (autoload 'gpg-passphrase-read "gpg"))
370 (defun mml2015-gpg-passphrase ()
371 (or (message-options-get 'gpg-passphrase)
372 (message-options-set 'gpg-passphrase (gpg-passphrase-read))))
374 (defun mml2015-gpg-decrypt-1 ()
375 (let ((cipher (current-buffer)) plain result)
376 (if (with-temp-buffer
378 (gpg-decrypt cipher (setq plain (current-buffer))
379 mml2015-result-buffer nil)
380 (mm-set-handle-multipart-parameter
381 mm-security-handle 'gnus-details
382 (with-current-buffer mml2015-result-buffer
386 (insert-buffer plain)
387 (goto-char (point-min))
388 (while (search-forward "\r\n" nil t)
389 (replace-match "\n" t t))))
391 ;; Some wrong with the return value, check plain text buffer.
392 (if (> (point-max) (point-min))
396 (defun mml2015-gpg-decrypt (handle ctl)
397 (let ((mml2015-decrypt-function 'mml2015-gpg-decrypt-1))
398 (mml2015-mailcrypt-decrypt handle ctl)))
400 (defun mml2015-gpg-clear-decrypt ()
402 (setq result (mml2015-gpg-decrypt-1))
404 (mm-set-handle-multipart-parameter
405 mm-security-handle 'gnus-info "OK")
406 (mm-set-handle-multipart-parameter
407 mm-security-handle 'gnus-info "Failed"))))
409 (defun mml2015-gpg-pretty-print-fpr (fingerprint)
411 (fpr-length (string-width fingerprint))
414 (setq fingerprint (string-to-list fingerprint))
416 (setq fpr-length (- fpr-length 4))
417 (setq slice (butlast fingerprint fpr-length))
418 (setq fingerprint (nthcdr 4 fingerprint))
419 (setq n-slice (1+ n-slice))
425 (otherwise (concat " " slice))))))
428 (defun mml2015-gpg-extract-signature-details ()
429 (goto-char (point-min))
430 (if (boundp 'gpg-unabbrev-trust-alist)
431 (let* ((expired (re-search-forward
432 "^\\[GNUPG:\\] SIGEXPIRED$"
434 (signer (and (re-search-forward
435 "^\\[GNUPG:\\] GOODSIG \\([0-9A-Za-z]*\\) \\(.*\\)$"
437 (cons (match-string 1) (match-string 2))))
438 (fprint (and (re-search-forward
439 "^\\[GNUPG:\\] VALIDSIG \\([0-9a-zA-Z]*\\) "
442 (trust (and (re-search-forward
443 "^\\[GNUPG:\\] \\(TRUST_.*\\)$"
447 (cdr (assoc (cdr (assoc trust gpg-unabbrev-trust-alist))
448 mml2015-trust-boundaries-alist))))
449 (cond ((and signer fprint)
451 (unless trust-good-enough-p
452 (concat "\nUntrusted, Fingerprint: "
453 (mml2015-gpg-pretty-print-fpr fprint)))
455 (format "\nWARNING: Signature from expired key (%s)"
458 "From unknown user")))
459 (if (re-search-forward "^\\(gpg: \\)?Good signature from \"\\(.*\\)\"$" nil t)
461 "From unknown user")))
463 (defun mml2015-gpg-verify (handle ctl)
465 (let (part message signature info-is-set-p)
466 (unless (setq part (mm-find-raw-part-by-type
467 ctl (or (mm-handle-multipart-ctl-parameter
469 "application/pgp-signature")
471 (mm-set-handle-multipart-parameter
472 mm-security-handle 'gnus-info "Corrupted")
473 (throw 'error handle))
475 (setq message (current-buffer))
477 ;; Convert <LF> to <CR><LF> in verify mode. Sign and
478 ;; clearsign use --textmode. The conversion is not necessary.
479 ;; In clearverify, the conversion is not necessary either.
480 (goto-char (point-min))
483 (unless (eq (char-before) ?\r)
488 (setq signature (current-buffer))
489 (unless (setq part (mm-find-part-by-type
490 (cdr handle) "application/pgp-signature" nil t))
491 (mm-set-handle-multipart-parameter
492 mm-security-handle 'gnus-info "Corrupted")
493 (throw 'error handle))
494 (mm-insert-part part)
495 (unless (condition-case err
497 (gpg-verify message signature mml2015-result-buffer)
498 (mm-set-handle-multipart-parameter
499 mm-security-handle 'gnus-details
500 (with-current-buffer mml2015-result-buffer
503 (mm-set-handle-multipart-parameter
504 mm-security-handle 'gnus-details (mml2015-format-error err))
505 (mm-set-handle-multipart-parameter
506 mm-security-handle 'gnus-info "Error.")
507 (setq info-is-set-p t)
510 (mm-set-handle-multipart-parameter
511 mm-security-handle 'gnus-details "Quit.")
512 (mm-set-handle-multipart-parameter
513 mm-security-handle 'gnus-info "Quit.")
514 (setq info-is-set-p t)
516 (unless info-is-set-p
517 (mm-set-handle-multipart-parameter
518 mm-security-handle 'gnus-info "Failed"))
519 (throw 'error handle)))
520 (mm-set-handle-multipart-parameter
521 mm-security-handle 'gnus-info
522 (with-current-buffer mml2015-result-buffer
523 (mml2015-gpg-extract-signature-details))))
526 (defun mml2015-gpg-clear-verify ()
527 (if (condition-case err
529 (gpg-verify-cleartext (current-buffer) mml2015-result-buffer)
530 (mm-set-handle-multipart-parameter
531 mm-security-handle 'gnus-details
532 (with-current-buffer mml2015-result-buffer
535 (mm-set-handle-multipart-parameter
536 mm-security-handle 'gnus-details (mml2015-format-error err))
539 (mm-set-handle-multipart-parameter
540 mm-security-handle 'gnus-details "Quit.")
542 (mm-set-handle-multipart-parameter
543 mm-security-handle 'gnus-info
544 (with-current-buffer mml2015-result-buffer
545 (mml2015-gpg-extract-signature-details)))
546 (mm-set-handle-multipart-parameter
547 mm-security-handle 'gnus-info "Failed")))
549 (defun mml2015-gpg-sign (cont)
551 (funcall mml-boundary-function (incf mml-multipart-number)))
552 (text (current-buffer)) signature)
553 (goto-char (point-max))
557 (unless (gpg-sign-detached text (setq signature (current-buffer))
558 mml2015-result-buffer
560 (message-options-get 'message-sender)
561 t t) ; armor & textmode
562 (unless (> (point-max) (point-min))
563 (pop-to-buffer mml2015-result-buffer)
564 (error "Sign error")))
565 (goto-char (point-min))
566 (while (re-search-forward "\r+$" nil t)
567 (replace-match "" t t))
569 (goto-char (point-min))
570 (insert (format "Content-Type: multipart/signed; boundary=\"%s\";\n"
572 ;;; FIXME: what is the micalg?
573 (insert "\tmicalg=pgp-sha1; protocol=\"application/pgp-signature\"\n")
574 (insert (format "\n--%s\n" boundary))
575 (goto-char (point-max))
576 (insert (format "\n--%s\n" boundary))
577 (insert "Content-Type: application/pgp-signature\n\n")
578 (insert-buffer signature)
579 (goto-char (point-max))
580 (insert (format "--%s--\n" boundary))
581 (goto-char (point-max)))))
583 (defun mml2015-gpg-encrypt (cont &optional sign)
585 (funcall mml-boundary-function (incf mml-multipart-number)))
586 (text (current-buffer))
588 (mm-with-unibyte-current-buffer-mule4
590 ;; set up a function to call the correct gpg encrypt routine
591 ;; with the right arguments. (FIXME: this should be done
593 (flet ((gpg-encrypt-func
594 (sign plaintext ciphertext result recipients &optional
595 passphrase sign-with-key armor textmode)
598 plaintext ciphertext result recipients passphrase
599 sign-with-key armor textmode)
601 plaintext ciphertext result recipients passphrase
603 (unless (gpg-encrypt-func
604 sign ; passed in when using signencrypt
605 text (setq cipher (current-buffer))
606 mml2015-result-buffer
609 (message-options-get 'message-recipients)
610 (message-options-set 'message-recipients
611 (read-string "Recipients: ")))
614 (message-options-get 'message-sender)
615 t t) ; armor & textmode
616 (unless (> (point-max) (point-min))
617 (pop-to-buffer mml2015-result-buffer)
618 (error "Encrypt error"))))
619 (goto-char (point-min))
620 (while (re-search-forward "\r+$" nil t)
621 (replace-match "" t t))
623 (delete-region (point-min) (point-max))
624 (insert (format "Content-Type: multipart/encrypted; boundary=\"%s\";\n"
626 (insert "\tprotocol=\"application/pgp-encrypted\"\n\n")
627 (insert (format "--%s\n" boundary))
628 (insert "Content-Type: application/pgp-encrypted\n\n")
629 (insert "Version: 1\n\n")
630 (insert (format "--%s\n" boundary))
631 (insert "Content-Type: application/octet-stream\n\n")
632 (insert-buffer cipher)
633 (goto-char (point-max))
634 (insert (format "--%s--\n" boundary))
635 (goto-char (point-max))))))
640 (defvar pgg-errors-buffer)
641 (defvar pgg-output-buffer))
644 (autoload 'pgg-decrypt-region "pgg")
645 (autoload 'pgg-verify-region "pgg")
646 (autoload 'pgg-sign-region "pgg")
647 (autoload 'pgg-encrypt-region "pgg"))
649 (defun mml2015-pgg-decrypt (handle ctl)
651 (let ((pgg-errors-buffer mml2015-result-buffer)
652 child handles result decrypt-status)
653 (unless (setq child (mm-find-part-by-type
655 "application/octet-stream" nil t))
656 (mm-set-handle-multipart-parameter
657 mm-security-handle 'gnus-info "Corrupted")
658 (throw 'error handle))
660 (mm-insert-part child)
661 (if (condition-case err
663 (pgg-decrypt-region (point-min) (point-max))
665 (with-current-buffer mml2015-result-buffer
667 (mm-set-handle-multipart-parameter
668 mm-security-handle 'gnus-details
671 (mm-set-handle-multipart-parameter
672 mm-security-handle 'gnus-details (mml2015-format-error err))
675 (mm-set-handle-multipart-parameter
676 mm-security-handle 'gnus-details "Quit.")
678 (with-current-buffer pgg-output-buffer
679 (setq handles (mm-dissect-buffer t))
680 (mm-destroy-parts handle)
681 (mm-set-handle-multipart-parameter
682 mm-security-handle 'gnus-info "OK")
683 (mm-set-handle-multipart-parameter
684 mm-security-handle 'gnus-details
685 (concat decrypt-status
686 (when (stringp (car handles))
687 "\n" (mm-handle-multipart-ctl-parameter
688 handles 'gnus-details))))
689 (if (listp (car handles))
692 (mm-set-handle-multipart-parameter
693 mm-security-handle 'gnus-info "Failed")
694 (throw 'error handle))))))
696 (defun mml2015-pgg-clear-decrypt ()
697 (let ((pgg-errors-buffer mml2015-result-buffer))
699 (pgg-decrypt-region (point-min) (point-max))
700 (mm-set-handle-multipart-parameter
701 mm-security-handle 'gnus-details
702 (with-current-buffer mml2015-result-buffer
706 (insert-buffer pgg-output-buffer)
707 (mm-set-handle-multipart-parameter
708 mm-security-handle 'gnus-info "OK"))
709 (mm-set-handle-multipart-parameter
710 mm-security-handle 'gnus-info "Failed"))))
712 (defun mml2015-pgg-verify (handle ctl)
713 (let ((pgg-errors-buffer mml2015-result-buffer)
714 signature-file part signature)
715 (if (or (null (setq part (mm-find-raw-part-by-type
716 ctl (or (mm-handle-multipart-ctl-parameter
718 "application/pgp-signature")
720 (null (setq signature (mm-find-part-by-type
721 (cdr handle) "application/pgp-signature" nil t))))
723 (mm-set-handle-multipart-parameter
724 mm-security-handle 'gnus-info "Corrupted")
728 ;; Convert <LF> to <CR><LF> in verify mode. Sign and
729 ;; clearsign use --textmode. The conversion is not necessary.
730 ;; In clearverify, the conversion is not necessary either.
731 (goto-char (point-min))
734 (unless (eq (char-before) ?\r)
738 (with-temp-file (setq signature-file (mm-make-temp-file "pgg"))
739 (mm-insert-part signature))
740 (if (condition-case err
742 (pgg-verify-region (point-min) (point-max)
744 (mm-set-handle-multipart-parameter
745 mm-security-handle 'gnus-details
746 (concat (with-current-buffer pgg-output-buffer
748 (with-current-buffer pgg-errors-buffer
751 (mm-set-handle-multipart-parameter
752 mm-security-handle 'gnus-details (mml2015-format-error err))
755 (mm-set-handle-multipart-parameter
756 mm-security-handle 'gnus-details "Quit.")
759 (delete-file signature-file)
760 (mm-set-handle-multipart-parameter
761 mm-security-handle 'gnus-info
762 (with-current-buffer pgg-errors-buffer
763 (mml2015-gpg-extract-signature-details))))
764 (delete-file signature-file)
765 (mm-set-handle-multipart-parameter
766 mm-security-handle 'gnus-info "Failed")))))
769 (defun mml2015-pgg-clear-verify ()
770 (let ((pgg-errors-buffer mml2015-result-buffer)
771 (text (current-buffer)))
772 (if (condition-case err
774 (mm-with-unibyte-buffer
776 (pgg-verify-region (point-min) (point-max) nil t))
777 (mm-set-handle-multipart-parameter
778 mm-security-handle 'gnus-details
779 (concat (with-current-buffer pgg-output-buffer
781 (with-current-buffer pgg-errors-buffer
784 (mm-set-handle-multipart-parameter
785 mm-security-handle 'gnus-details (mml2015-format-error err))
788 (mm-set-handle-multipart-parameter
789 mm-security-handle 'gnus-details "Quit.")
791 (mm-set-handle-multipart-parameter
792 mm-security-handle 'gnus-info
793 (with-current-buffer pgg-errors-buffer
794 (mml2015-gpg-extract-signature-details)))
795 (mm-set-handle-multipart-parameter
796 mm-security-handle 'gnus-info "Failed"))))
798 (defun mml2015-pgg-sign (cont)
799 (let ((pgg-errors-buffer mml2015-result-buffer)
800 (boundary (funcall mml-boundary-function (incf mml-multipart-number))))
801 (unless (pgg-sign-region (point-min) (point-max))
802 (pop-to-buffer mml2015-result-buffer)
803 (error "Sign error"))
804 (goto-char (point-min))
805 (insert (format "Content-Type: multipart/signed; boundary=\"%s\";\n"
807 ;;; FIXME: what is the micalg?
808 (insert "\tmicalg=pgp-sha1; protocol=\"application/pgp-signature\"\n")
809 (insert (format "\n--%s\n" boundary))
810 (goto-char (point-max))
811 (insert (format "\n--%s\n" boundary))
812 (insert "Content-Type: application/pgp-signature\n\n")
813 (insert-buffer pgg-output-buffer)
814 (goto-char (point-max))
815 (insert (format "--%s--\n" boundary))
816 (goto-char (point-max))))
818 (defun mml2015-pgg-encrypt (cont &optional sign)
819 (let ((pgg-errors-buffer mml2015-result-buffer)
820 (boundary (funcall mml-boundary-function (incf mml-multipart-number))))
821 (unless (pgg-encrypt-region (point-min) (point-max)
824 (message-options-get 'message-recipients)
825 (message-options-set 'message-recipients
826 (read-string "Recipients: ")))
829 (pop-to-buffer mml2015-result-buffer)
830 (error "Encrypt error"))
831 (delete-region (point-min) (point-max))
832 (goto-char (point-min))
833 (insert (format "Content-Type: multipart/encrypted; boundary=\"%s\";\n"
835 (insert "\tprotocol=\"application/pgp-encrypted\"\n\n")
836 (insert (format "--%s\n" boundary))
837 (insert "Content-Type: application/pgp-encrypted\n\n")
838 (insert "Version: 1\n\n")
839 (insert (format "--%s\n" boundary))
840 (insert "Content-Type: application/octet-stream\n\n")
841 (insert-buffer pgg-output-buffer)
842 (goto-char (point-max))
843 (insert (format "--%s--\n" boundary))
844 (goto-char (point-max))))
848 (defun mml2015-clean-buffer ()
849 (if (gnus-buffer-live-p mml2015-result-buffer)
850 (with-current-buffer mml2015-result-buffer
853 (setq mml2015-result-buffer
854 (gnus-get-buffer-create "*MML2015 Result*"))
857 (defsubst mml2015-clear-decrypt-function ()
858 (nth 6 (assq mml2015-use mml2015-function-alist)))
860 (defsubst mml2015-clear-verify-function ()
861 (nth 5 (assq mml2015-use mml2015-function-alist)))
864 (defun mml2015-decrypt (handle ctl)
865 (mml2015-clean-buffer)
866 (let ((func (nth 4 (assq mml2015-use mml2015-function-alist))))
868 (funcall func handle ctl)
872 (defun mml2015-decrypt-test (handle ctl)
876 (defun mml2015-verify (handle ctl)
877 (mml2015-clean-buffer)
878 (let ((func (nth 3 (assq mml2015-use mml2015-function-alist))))
880 (funcall func handle ctl)
884 (defun mml2015-verify-test (handle ctl)
888 (defun mml2015-encrypt (cont &optional sign)
889 (mml2015-clean-buffer)
890 (let ((func (nth 2 (assq mml2015-use mml2015-function-alist))))
892 (funcall func cont sign)
893 (error "Cannot find encrypt function"))))
896 (defun mml2015-sign (cont)
897 (mml2015-clean-buffer)
898 (let ((func (nth 1 (assq mml2015-use mml2015-function-alist))))
901 (error "Cannot find sign function"))))
904 (defun mml2015-self-encrypt ()
905 (mml2015-encrypt nil))
909 ;;; mml2015.el ends here