mirror of
https://git.savannah.gnu.org/git/emacs.git
synced 2024-12-04 08:47:11 +00:00
314 lines
9.7 KiB
EmacsLisp
314 lines
9.7 KiB
EmacsLisp
;;; mml1991.el --- Old PGP message format (RFC 1991) support for MML
|
|
|
|
;; Copyright (C) 1998, 1999, 2000, 2001, 2002, 2003, 2004,
|
|
;; 2005 Free Software Foundation, Inc.
|
|
|
|
;; Author: Sascha Lüdecke <sascha@meta-x.de>,
|
|
;; Simon Josefsson <simon@josefsson.org> (Mailcrypt interface, Gnus glue)
|
|
;; Keywords PGP
|
|
|
|
;; This file is part of GNU Emacs.
|
|
|
|
;; GNU Emacs 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 2, or (at your option)
|
|
;; any later version.
|
|
|
|
;; GNU Emacs 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 GNU Emacs; see the file COPYING. If not, write to the
|
|
;; Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
|
|
;; Boston, MA 02110-1301, USA.
|
|
|
|
;;; Commentary:
|
|
|
|
;;; Code:
|
|
|
|
(eval-when-compile
|
|
(require 'cl)
|
|
(require 'mm-util))
|
|
|
|
(defvar mc-pgp-always-sign)
|
|
|
|
(autoload 'quoted-printable-decode-region "qp")
|
|
(autoload 'quoted-printable-encode-region "qp")
|
|
|
|
(defvar mml1991-use mml2015-use
|
|
"The package used for PGP.")
|
|
|
|
(defvar mml1991-function-alist
|
|
'((mailcrypt mml1991-mailcrypt-sign
|
|
mml1991-mailcrypt-encrypt)
|
|
(gpg mml1991-gpg-sign
|
|
mml1991-gpg-encrypt)
|
|
(pgg mml1991-pgg-sign
|
|
mml1991-pgg-encrypt))
|
|
"Alist of PGP functions.")
|
|
|
|
;;; mailcrypt wrapper
|
|
|
|
(eval-and-compile
|
|
(autoload 'mc-sign-generic "mc-toplev"))
|
|
|
|
(defvar mml1991-decrypt-function 'mailcrypt-decrypt)
|
|
(defvar mml1991-verify-function 'mailcrypt-verify)
|
|
|
|
(defun mml1991-mailcrypt-sign (cont)
|
|
(let ((text (current-buffer))
|
|
headers signature
|
|
(result-buffer (get-buffer-create "*GPG Result*")))
|
|
;; Save MIME Content[^ ]+: headers from signing
|
|
(goto-char (point-min))
|
|
(while (looking-at "^Content[^ ]+:") (forward-line))
|
|
(unless (bobp)
|
|
(setq headers (buffer-string))
|
|
(delete-region (point-min) (point)))
|
|
(goto-char (point-max))
|
|
(unless (bolp)
|
|
(insert "\n"))
|
|
(quoted-printable-decode-region (point-min) (point-max))
|
|
(with-temp-buffer
|
|
(setq signature (current-buffer))
|
|
(insert-buffer-substring text)
|
|
(unless (mc-sign-generic (message-options-get 'message-sender)
|
|
nil nil nil nil)
|
|
(unless (> (point-max) (point-min))
|
|
(pop-to-buffer result-buffer)
|
|
(error "Sign error")))
|
|
(goto-char (point-min))
|
|
(while (re-search-forward "\r+$" nil t)
|
|
(replace-match "" t t))
|
|
(quoted-printable-encode-region (point-min) (point-max))
|
|
(set-buffer text)
|
|
(delete-region (point-min) (point-max))
|
|
(if headers (insert headers))
|
|
(insert "\n")
|
|
(insert-buffer-substring signature)
|
|
(goto-char (point-max)))))
|
|
|
|
(defun mml1991-mailcrypt-encrypt (cont &optional sign)
|
|
(let ((text (current-buffer))
|
|
(mc-pgp-always-sign
|
|
(or mc-pgp-always-sign
|
|
sign
|
|
(eq t (or (message-options-get 'message-sign-encrypt)
|
|
(message-options-set
|
|
'message-sign-encrypt
|
|
(or (y-or-n-p "Sign the message? ")
|
|
'not))))
|
|
'never))
|
|
cipher
|
|
(result-buffer (get-buffer-create "*GPG Result*")))
|
|
;; Strip MIME Content[^ ]: headers since it will be ASCII ARMOURED
|
|
(goto-char (point-min))
|
|
(while (looking-at "^Content[^ ]+:") (forward-line))
|
|
(unless (bobp)
|
|
(delete-region (point-min) (point)))
|
|
(mm-with-unibyte-current-buffer
|
|
(with-temp-buffer
|
|
(setq cipher (current-buffer))
|
|
(insert-buffer-substring text)
|
|
(unless (mc-encrypt-generic
|
|
(or
|
|
(message-options-get 'message-recipients)
|
|
(message-options-set 'message-recipients
|
|
(read-string "Recipients: ")))
|
|
nil
|
|
(point-min) (point-max)
|
|
(message-options-get 'message-sender)
|
|
'sign)
|
|
(unless (> (point-max) (point-min))
|
|
(pop-to-buffer result-buffer)
|
|
(error "Encrypt error")))
|
|
(goto-char (point-min))
|
|
(while (re-search-forward "\r+$" nil t)
|
|
(replace-match "" t t))
|
|
(set-buffer text)
|
|
(delete-region (point-min) (point-max))
|
|
;;(insert "Content-Type: application/pgp-encrypted\n\n")
|
|
;;(insert "Version: 1\n\n")
|
|
(insert "\n")
|
|
(insert-buffer-substring cipher)
|
|
(goto-char (point-max))))))
|
|
|
|
;;; gpg wrapper
|
|
|
|
(eval-and-compile
|
|
(autoload 'gpg-sign-cleartext "gpg"))
|
|
|
|
(defun mml1991-gpg-sign (cont)
|
|
(let ((text (current-buffer))
|
|
headers signature
|
|
(result-buffer (get-buffer-create "*GPG Result*")))
|
|
;; Save MIME Content[^ ]+: headers from signing
|
|
(goto-char (point-min))
|
|
(while (looking-at "^Content[^ ]+:") (forward-line))
|
|
(unless (bobp)
|
|
(setq headers (buffer-string))
|
|
(delete-region (point-min) (point)))
|
|
(goto-char (point-max))
|
|
(unless (bolp)
|
|
(insert "\n"))
|
|
(quoted-printable-decode-region (point-min) (point-max))
|
|
(with-temp-buffer
|
|
(unless (gpg-sign-cleartext text (setq signature (current-buffer))
|
|
result-buffer
|
|
nil
|
|
(message-options-get 'message-sender))
|
|
(unless (> (point-max) (point-min))
|
|
(pop-to-buffer result-buffer)
|
|
(error "Sign error")))
|
|
(goto-char (point-min))
|
|
(while (re-search-forward "\r+$" nil t)
|
|
(replace-match "" t t))
|
|
(quoted-printable-encode-region (point-min) (point-max))
|
|
(set-buffer text)
|
|
(delete-region (point-min) (point-max))
|
|
(if headers (insert headers))
|
|
(insert "\n")
|
|
(insert-buffer-substring signature)
|
|
(goto-char (point-max)))))
|
|
|
|
(defun mml1991-gpg-encrypt (cont &optional sign)
|
|
(let ((text (current-buffer))
|
|
cipher
|
|
(result-buffer (get-buffer-create "*GPG Result*")))
|
|
;; Strip MIME Content[^ ]: headers since it will be ASCII ARMOURED
|
|
(goto-char (point-min))
|
|
(while (looking-at "^Content[^ ]+:") (forward-line))
|
|
(unless (bobp)
|
|
(delete-region (point-min) (point)))
|
|
(mm-with-unibyte-current-buffer
|
|
(with-temp-buffer
|
|
(flet ((gpg-encrypt-func
|
|
(sign plaintext ciphertext result recipients &optional
|
|
passphrase sign-with-key armor textmode)
|
|
(if sign
|
|
(gpg-sign-encrypt
|
|
plaintext ciphertext result recipients passphrase
|
|
sign-with-key armor textmode)
|
|
(gpg-encrypt
|
|
plaintext ciphertext result recipients passphrase
|
|
armor textmode))))
|
|
(unless (gpg-encrypt-func
|
|
sign
|
|
text (setq cipher (current-buffer))
|
|
result-buffer
|
|
(split-string
|
|
(or
|
|
(message-options-get 'message-recipients)
|
|
(message-options-set 'message-recipients
|
|
(read-string "Recipients: ")))
|
|
"[ \f\t\n\r\v,]+")
|
|
nil
|
|
(message-options-get 'message-sender)
|
|
t t) ; armor & textmode
|
|
(unless (> (point-max) (point-min))
|
|
(pop-to-buffer result-buffer)
|
|
(error "Encrypt error"))))
|
|
(goto-char (point-min))
|
|
(while (re-search-forward "\r+$" nil t)
|
|
(replace-match "" t t))
|
|
(set-buffer text)
|
|
(delete-region (point-min) (point-max))
|
|
;;(insert "Content-Type: application/pgp-encrypted\n\n")
|
|
;;(insert "Version: 1\n\n")
|
|
(insert "\n")
|
|
(insert-buffer-substring cipher)
|
|
(goto-char (point-max))))))
|
|
|
|
;; pgg wrapper
|
|
|
|
(eval-when-compile
|
|
(defvar pgg-default-user-id)
|
|
(defvar pgg-errors-buffer)
|
|
(defvar pgg-output-buffer))
|
|
|
|
(defun mml1991-pgg-sign (cont)
|
|
(let (headers cte)
|
|
;; Don't sign headers.
|
|
(goto-char (point-min))
|
|
(while (not (looking-at "^$"))
|
|
(forward-line))
|
|
(unless (eobp) ;; no headers?
|
|
(setq headers (buffer-substring (point-min) (point)))
|
|
(forward-line) ;; skip header/body separator
|
|
(delete-region (point-min) (point)))
|
|
(when (string-match "^Content-Transfer-Encoding: \\(.+\\)" headers)
|
|
(setq cte (intern (match-string 1 headers))))
|
|
(mm-decode-content-transfer-encoding cte)
|
|
(unless (let ((pgg-default-user-id
|
|
(or (message-options-get 'mml-sender)
|
|
pgg-default-user-id)))
|
|
(pgg-sign-region (point-min) (point-max) t))
|
|
(pop-to-buffer pgg-errors-buffer)
|
|
(error "Encrypt error"))
|
|
(delete-region (point-min) (point-max))
|
|
(mm-with-unibyte-current-buffer
|
|
(insert-buffer-substring pgg-output-buffer)
|
|
(goto-char (point-min))
|
|
(while (re-search-forward "\r+$" nil t)
|
|
(replace-match "" t t))
|
|
(mm-encode-content-transfer-encoding cte)
|
|
(goto-char (point-min))
|
|
(when headers
|
|
(insert headers))
|
|
(insert "\n"))
|
|
t))
|
|
|
|
(defun mml1991-pgg-encrypt (cont &optional sign)
|
|
(let (cte)
|
|
;; Strip MIME Content[^ ]: headers since it will be ASCII ARMOURED
|
|
(goto-char (point-min))
|
|
(while (looking-at "^Content[^ ]+:")
|
|
(when (looking-at "^Content-Transfer-Encoding: \\(.+\\)")
|
|
(setq cte (intern (match-string 1))))
|
|
(forward-line))
|
|
(unless (bobp)
|
|
(delete-region (point-min) (point)))
|
|
(mm-decode-content-transfer-encoding cte)
|
|
(unless (pgg-encrypt-region
|
|
(point-min) (point-max)
|
|
(split-string
|
|
(or
|
|
(message-options-get 'message-recipients)
|
|
(message-options-set 'message-recipients
|
|
(read-string "Recipients: ")))
|
|
"[ \f\t\n\r\v,]+")
|
|
sign)
|
|
(pop-to-buffer pgg-errors-buffer)
|
|
(error "Encrypt error"))
|
|
(delete-region (point-min) (point-max))
|
|
;;(insert "Content-Type: application/pgp-encrypted\n\n")
|
|
;;(insert "Version: 1\n\n")
|
|
(insert "\n")
|
|
(insert-buffer-substring pgg-output-buffer)
|
|
t))
|
|
|
|
;;;###autoload
|
|
(defun mml1991-encrypt (cont &optional sign)
|
|
(let ((func (nth 2 (assq mml1991-use mml1991-function-alist))))
|
|
(if func
|
|
(funcall func cont sign)
|
|
(error "Cannot find encrypt function"))))
|
|
|
|
;;;###autoload
|
|
(defun mml1991-sign (cont)
|
|
(let ((func (nth 1 (assq mml1991-use mml1991-function-alist))))
|
|
(if func
|
|
(funcall func cont)
|
|
(error "Cannot find sign function"))))
|
|
|
|
(provide 'mml1991)
|
|
|
|
;; Local Variables:
|
|
;; coding: iso-8859-1
|
|
;; End:
|
|
|
|
;;; arch-tag: e542be18-ab28-4393-9b33-97fe9cf30706
|
|
;;; mml1991.el ends here
|