;;; mml2015.el --- MIME Security with Pretty Good Privacy (PGP)
-;; Copyright (C) 2000, 2001, 2002 Free Software Foundation, Inc.
+
+;; Copyright (C) 2000, 2001, 2002, 2003, 2004,
+;; 2005, 2006 Free Software Foundation, Inc.
;; Author: Shenghuo Zhu <zsh@cs.rochester.edu>
;; Keywords: PGP MIME MML
;; 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.
+;; Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
+;; Boston, MA 02110-1301, USA.
;;; Commentary:
(eval-when-compile (require 'cl))
(require 'mm-decode)
(require 'mm-util)
+(require 'mml)
+
+(defvar mc-pgp-always-sign)
(defvar mml2015-use (or
(progn
(ignore-errors
- (require 'pgg))
+ ;; Avoid the "Recursive load suspected" error
+ ;; in Emacs 21.1.
+ (let ((recursive-load-depth-limit 100))
+ (require 'pgg)))
(and (fboundp 'pgg-sign-region)
'pgg))
(progn
(fboundp 'mc-sign-generic)
(fboundp 'mc-cleanup-recipient-headers)
'mailcrypt)))
- "The package used for PGP/MIME.")
+ "The package used for PGP/MIME.
+Valid packages include `pgg', `gpg' and `mailcrypt'.")
;; Something is not RFC2015.
(defvar mml2015-function-alist
(defvar mml2015-result-buffer nil)
-(defvar mml2015-trust-boundaries-alist
- '((trust-undefined . nil)
- (trust-none . nil)
- (trust-marginal . t)
- (trust-full . t)
- (trust-ultimate . t))
- "Trust boundaries for a signer's GnuPG key.
-This alist contains pairs of the form (trust-symbol . boolean), with
-symbols that are contained in `gpg-unabbrev-trust-alist'. The boolean
-specifies whether the given trust value is good enough to be trusted
-by you.")
+(defcustom mml2015-unabbrev-trust-alist
+ '(("TRUST_UNDEFINED" . nil)
+ ("TRUST_NEVER" . nil)
+ ("TRUST_MARGINAL" . t)
+ ("TRUST_FULLY" . t)
+ ("TRUST_ULTIMATE" . t))
+ "Map GnuPG trust output values to a boolean saying if you trust the key."
+ :version "22.1"
+ :group 'mime-security
+ :type '(repeat (cons (regexp :tag "GnuPG output regexp")
+ (boolean :tag "Trust key"))))
;;; mailcrypt wrapper
(defun mml2015-mailcrypt-sign (cont)
(mc-sign-generic (message-options-get 'message-sender)
nil nil nil nil)
- (let ((boundary
- (funcall mml-boundary-function (incf mml-multipart-number)))
+ (let ((boundary (mml-compute-boundary cont))
hash point)
(goto-char (point-min))
(unless (re-search-forward "^-----BEGIN PGP SIGNED MESSAGE-----\r?$" nil t)
(or (y-or-n-p "Sign the message? ")
'not))))
'never)))
- (mm-with-unibyte-current-buffer-mule4
+ (mm-with-unibyte-current-buffer
(mc-encrypt-generic
(or (message-options-get 'message-recipients)
(message-options-set 'message-recipients
(goto-char (point-min))
(unless (looking-at "-----BEGIN PGP MESSAGE-----")
(error "Fail to encrypt the message"))
- (let ((boundary
- (funcall mml-boundary-function (incf mml-multipart-number))))
+ (let ((boundary (mml-compute-boundary cont)))
(insert (format "Content-Type: multipart/encrypted; boundary=\"%s\";\n"
boundary))
(insert "\tprotocol=\"application/pgp-encrypted\"\n\n")
(buffer-string)))
(set-buffer cipher)
(erase-buffer)
- (insert-buffer plain)
+ (insert-buffer-substring plain)
(goto-char (point-min))
(while (search-forward "\r\n" nil t)
(replace-match "\n" t t))))
(defun mml2015-gpg-extract-signature-details ()
(goto-char (point-min))
- (if (and (eq mml2015-use 'gpg)
- (boundp 'gpg-unabbrev-trust-alist))
- (let* ((expired (re-search-forward
- "^\\[GNUPG:\\] SIGEXPIRED$"
- nil t))
- (signer (and (re-search-forward
- "^\\[GNUPG:\\] GOODSIG \\([0-9A-Za-z]*\\) \\(.*\\)$"
- nil t)
- (cons (match-string 1) (match-string 2))))
- (fprint (and (re-search-forward
- "^\\[GNUPG:\\] VALIDSIG \\([0-9a-zA-Z]*\\) "
- nil t)
- (match-string 1)))
- (trust (and (re-search-forward
- "^\\[GNUPG:\\] \\(TRUST_.*\\)$"
- nil t)
- (match-string 1)))
- (trust-good-enough-p
- (cdr (assoc (cdr (assoc trust gpg-unabbrev-trust-alist))
- mml2015-trust-boundaries-alist))))
- (cond ((and signer fprint)
- (concat (cdr signer)
- (unless trust-good-enough-p
- (concat "\nUntrusted, Fingerprint: "
- (mml2015-gpg-pretty-print-fpr fprint)))
- (when expired
- (format "\nWARNING: Signature from expired key (%s)"
- (car signer)))))
- (t
- "From unknown user")))
- (if (re-search-forward "^\\(gpg: \\)?Good signature from \"\\(.*\\)\"$" nil t)
- (match-string 2)
- "From unknown user")))
+ (let* ((expired (re-search-forward
+ "^\\[GNUPG:\\] SIGEXPIRED$"
+ nil t))
+ (signer (and (re-search-forward
+ "^\\[GNUPG:\\] GOODSIG \\([0-9A-Za-z]*\\) \\(.*\\)$"
+ nil t)
+ (cons (match-string 1) (match-string 2))))
+ (fprint (and (re-search-forward
+ "^\\[GNUPG:\\] VALIDSIG \\([0-9a-zA-Z]*\\) "
+ nil t)
+ (match-string 1)))
+ (trust (and (re-search-forward
+ "^\\[GNUPG:\\] \\(TRUST_.*\\)$"
+ nil t)
+ (match-string 1)))
+ (trust-good-enough-p
+ (cdr (assoc trust mml2015-unabbrev-trust-alist))))
+ (cond ((and signer fprint)
+ (concat (cdr signer)
+ (unless trust-good-enough-p
+ (concat "\nUntrusted, Fingerprint: "
+ (mml2015-gpg-pretty-print-fpr fprint)))
+ (when expired
+ (format "\nWARNING: Signature from expired key (%s)"
+ (car signer)))))
+ ((re-search-forward
+ "^\\(gpg: \\)?Good signature from \"\\(.*\\)\"$" nil t)
+ (match-string 2))
+ (t
+ "From unknown user"))))
(defun mml2015-gpg-verify (handle ctl)
(catch 'error
mm-security-handle 'gnus-info "Failed")))
(defun mml2015-gpg-sign (cont)
- (let ((boundary
- (funcall mml-boundary-function (incf mml-multipart-number)))
+ (let ((boundary (mml-compute-boundary cont))
(text (current-buffer)) signature)
(goto-char (point-max))
(unless (bolp)
(goto-char (point-max))
(insert (format "\n--%s\n" boundary))
(insert "Content-Type: application/pgp-signature\n\n")
- (insert-buffer signature)
+ (insert-buffer-substring signature)
(goto-char (point-max))
(insert (format "--%s--\n" boundary))
(goto-char (point-max)))))
(defun mml2015-gpg-encrypt (cont &optional sign)
- (let ((boundary
- (funcall mml-boundary-function (incf mml-multipart-number)))
+ (let ((boundary (mml-compute-boundary cont))
(text (current-buffer))
cipher)
- (mm-with-unibyte-current-buffer-mule4
+ (mm-with-unibyte-current-buffer
(with-temp-buffer
;; set up a function to call the correct gpg encrypt routine
;; with the right arguments. (FIXME: this should be done
;; differently.)
- (flet ((gpg-encrypt-func
+ (flet ((gpg-encrypt-func
(sign plaintext ciphertext result recipients &optional
passphrase sign-with-key armor textmode)
(if sign
(insert "Version: 1\n\n")
(insert (format "--%s\n" boundary))
(insert "Content-Type: application/octet-stream\n\n")
- (insert-buffer cipher)
+ (insert-buffer-substring cipher)
(goto-char (point-max))
(insert (format "--%s--\n" boundary))
(goto-char (point-max))))))
;;; pgg wrapper
(eval-when-compile
+ (defvar pgg-default-user-id)
(defvar pgg-errors-buffer)
(defvar pgg-output-buffer))
(autoload 'pgg-decrypt-region "pgg")
(autoload 'pgg-verify-region "pgg")
(autoload 'pgg-sign-region "pgg")
- (autoload 'pgg-encrypt-region "pgg"))
+ (autoload 'pgg-encrypt-region "pgg")
+ (autoload 'pgg-parse-armor "pgg-parse"))
(defun mml2015-pgg-decrypt (handle ctl)
(catch 'error
(if (condition-case err
(prog1
(pgg-decrypt-region (point-min) (point-max))
- (setq decrypt-status
+ (setq decrypt-status
(with-current-buffer mml2015-result-buffer
- (buffer-string))))
+ (buffer-string)))
+ (mm-set-handle-multipart-parameter
+ mm-security-handle 'gnus-details
+ decrypt-status))
(error
(mm-set-handle-multipart-parameter
mm-security-handle 'gnus-details (mml2015-format-error err))
mm-security-handle 'gnus-details "Quit.")
nil))
(with-current-buffer pgg-output-buffer
+ (goto-char (point-min))
+ (while (search-forward "\r\n" nil t)
+ (replace-match "\n" t t))
(setq handles (mm-dissect-buffer t))
(mm-destroy-parts handle)
(mm-set-handle-multipart-parameter
(buffer-string))))
(progn
(erase-buffer)
- (insert-buffer pgg-output-buffer)
+ ;; Treat data which pgg returns as a unibyte string.
+ (mm-disable-multibyte)
+ (insert-buffer-substring pgg-output-buffer)
+ (goto-char (point-min))
+ (while (search-forward "\r\n" nil t)
+ (replace-match "\n" t t))
(mm-set-handle-multipart-parameter
mm-security-handle 'gnus-info "OK"))
(mm-set-handle-multipart-parameter
(mm-insert-part signature))
(if (condition-case err
(prog1
- (pgg-verify-region (point-min) (point-max) signature-file t)
+ (pgg-verify-region (point-min) (point-max)
+ signature-file t)
+ (goto-char (point-min))
+ (while (search-forward "\r\n" nil t)
+ (replace-match "\n" t t))
(mm-set-handle-multipart-parameter
mm-security-handle 'gnus-details
- (with-current-buffer pgg-output-buffer
- (buffer-string))))
+ (concat (with-current-buffer pgg-output-buffer
+ (buffer-string))
+ (with-current-buffer pgg-errors-buffer
+ (buffer-string)))))
(error
(mm-set-handle-multipart-parameter
mm-security-handle 'gnus-details (mml2015-format-error err))
(delete-file signature-file)
(mm-set-handle-multipart-parameter
mm-security-handle 'gnus-info
- (with-current-buffer pgg-output-buffer
+ (with-current-buffer pgg-errors-buffer
(mml2015-gpg-extract-signature-details))))
(delete-file signature-file)
(mm-set-handle-multipart-parameter
(defun mml2015-pgg-clear-verify ()
(let ((pgg-errors-buffer mml2015-result-buffer)
- (text (current-buffer)))
+ (text (buffer-string))
+ (coding-system buffer-file-coding-system))
(if (condition-case err
(prog1
(mm-with-unibyte-buffer
- (insert-buffer text)
+ (insert (encode-coding-string text coding-system))
(pgg-verify-region (point-min) (point-max) nil t))
+ (goto-char (point-min))
+ (while (search-forward "\r\n" nil t)
+ (replace-match "\n" t t))
(mm-set-handle-multipart-parameter
mm-security-handle 'gnus-details
- (with-current-buffer mml2015-result-buffer
- (buffer-string))))
+ (concat (with-current-buffer pgg-output-buffer
+ (buffer-string))
+ (with-current-buffer pgg-errors-buffer
+ (buffer-string)))))
(error
(mm-set-handle-multipart-parameter
mm-security-handle 'gnus-details (mml2015-format-error err))
nil))
(mm-set-handle-multipart-parameter
mm-security-handle 'gnus-info
- (with-current-buffer pgg-output-buffer
+ (with-current-buffer pgg-errors-buffer
(mml2015-gpg-extract-signature-details)))
(mm-set-handle-multipart-parameter
mm-security-handle 'gnus-info "Failed"))))
(defun mml2015-pgg-sign (cont)
(let ((pgg-errors-buffer mml2015-result-buffer)
- (boundary (funcall mml-boundary-function (incf mml-multipart-number))))
+ (boundary (mml-compute-boundary cont))
+ (pgg-default-user-id (or (message-options-get 'mml-sender)
+ pgg-default-user-id))
+ (pgg-text-mode t)
+ entry)
(unless (pgg-sign-region (point-min) (point-max))
(pop-to-buffer mml2015-result-buffer)
(error "Sign error"))
(goto-char (point-min))
(insert (format "Content-Type: multipart/signed; boundary=\"%s\";\n"
boundary))
- ;;; FIXME: what is the micalg?
- (insert "\tmicalg=pgp-sha1; protocol=\"application/pgp-signature\"\n")
+ (if (setq entry (assq 2 (pgg-parse-armor
+ (with-current-buffer pgg-output-buffer
+ (buffer-string)))))
+ (setq entry (assq 'hash-algorithm (cdr entry))))
+ (insert (format "\tmicalg=%s; "
+ (if (cdr entry)
+ (downcase (format "pgp-%s" (cdr entry)))
+ "pgp-sha1")))
+ (insert "protocol=\"application/pgp-signature\"\n")
(insert (format "\n--%s\n" boundary))
(goto-char (point-max))
(insert (format "\n--%s\n" boundary))
(insert "Content-Type: application/pgp-signature\n\n")
- (insert-buffer pgg-output-buffer)
+ (insert-buffer-substring pgg-output-buffer)
(goto-char (point-max))
(insert (format "--%s--\n" boundary))
(goto-char (point-max))))
(defun mml2015-pgg-encrypt (cont &optional sign)
(let ((pgg-errors-buffer mml2015-result-buffer)
- (boundary (funcall mml-boundary-function (incf mml-multipart-number))))
+ (pgg-text-mode t)
+ (boundary (mml-compute-boundary cont)))
(unless (pgg-encrypt-region (point-min) (point-max)
(split-string
(or
(insert "Version: 1\n\n")
(insert (format "--%s\n" boundary))
(insert "Content-Type: application/octet-stream\n\n")
- (insert-buffer pgg-output-buffer)
+ (insert-buffer-substring pgg-output-buffer)
(goto-char (point-max))
(insert (format "--%s--\n" boundary))
(goto-char (point-max))))
(erase-buffer)
t)
(setq mml2015-result-buffer
- (gnus-get-buffer-create "*MML2015 Result*"))
+ (gnus-get-buffer-create " *MML2015 Result*"))
nil))
(defsubst mml2015-clear-decrypt-function ()
(provide 'mml2015)
+;;; arch-tag: b04701d5-0b09-44d8-bed8-de901bf435f2
;;; mml2015.el ends here