;;; mml1991.el --- Old PGP message format (RFC 1991) support for MML ;; Copyright (C) 1998, 1999, 2000, 2001, 2003 Free Software Foundation, Inc. ;; Author: Sascha Lüdecke , ;; Simon Josefsson (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., 59 Temple Place - Suite 330, ;; Boston, MA 02111-1307, USA. ;;; Commentary: ;;; Code: (eval-when-compile (require 'cl) (require 'mm-util)) (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 (defvar pgg-output-buffer) (defvar pgg-errors-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