;;; pgg-gpg.el --- GnuPG support for PGG.
-;; Copyright (C) 1999,2000 Free Software Foundation, Inc.
+;; Copyright (C) 1999, 2000, 2002, 2003, 2004,
+;; 2005 Free Software Foundation, Inc.
;; Author: Daiki Ueno <ueno@unixuser.org>
;; Created: 1999/10/28
;; Keywords: PGP, OpenPGP, GnuPG
-;; This file is part of SEMI (Secure Emacs MIME Interface).
+;; This file is part of GNU Emacs.
-;; This program 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 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.
-;; This program 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.
+;; 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.
+;; Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
+;; Boston, MA 02110-1301, USA.
;;; Code:
-(eval-when-compile (require 'pgg))
+(eval-when-compile
+ (require 'cl) ; for gpg macros
+ (require 'pgg))
(defgroup pgg-gpg ()
- "GnuPG interface"
+ "GnuPG interface."
:group 'pgg)
-(defcustom pgg-gpg-program "gpg"
+(defcustom pgg-gpg-program "gpg"
"The GnuPG executable."
:group 'pgg-gpg
:type 'string)
(defcustom pgg-gpg-extra-args nil
"Extra arguments for every GnuPG invocation."
:group 'pgg-gpg
- :type '(choice
- (const :tag "None" nil)
- (string :tag "Arguments")))
+ :type '(repeat (string :tag "Argument")))
+
+(defcustom pgg-gpg-recipient-argument "--recipient"
+ "GnuPG option to specify recipient."
+ :group 'pgg-gpg
+ :type '(choice (const :tag "New `--recipient' option" "--recipient")
+ (const :tag "Old `--remote-user' option" "--remote-user")))
(defvar pgg-gpg-user-id nil
"GnuPG ID of your default identity.")
(defun pgg-gpg-process-region (start end passphrase program args)
- (let* ((output-file-name
- (expand-file-name (make-temp-name "pgg-output")
- pgg-temporary-file-directory))
+ (let* ((output-file-name (pgg-make-temp-file "pgg-output"))
(args
`("--status-fd" "2"
,@(if passphrase '("--passphrase-fd" "0"))
+ "--yes" ; overwrite
"--output" ,output-file-name
,@pgg-gpg-extra-args ,@args))
(output-buffer pgg-output-buffer)
(errors-buffer pgg-errors-buffer)
(orig-mode (default-file-modes))
(process-connection-type nil)
- process status exit-status)
+ exit-status)
(with-current-buffer (get-buffer-create errors-buffer)
(buffer-disable-undo)
(erase-buffer))
(unwind-protect
(progn
(set-default-file-modes 448)
- (let ((coding-system-for-write 'binary))
- (setq process
- (apply #'start-process "*GnuPG*" errors-buffer
- program args)))
- (set-process-sentinel process #'ignore)
- (when passphrase
- (process-send-string process (concat passphrase "\n")))
- (process-send-region process start end)
- (process-send-eof process)
- (while (eq 'run (process-status process))
- (accept-process-output process 5))
- (setq status (process-status process)
- exit-status (process-exit-status process))
- (delete-process process)
+ (let ((coding-system-for-write 'binary)
+ (input (buffer-substring-no-properties start end))
+ (default-enable-multibyte-characters nil))
+ (with-temp-buffer
+ (when passphrase
+ (insert passphrase "\n"))
+ (insert input)
+ (setq exit-status
+ (apply #'call-process-region (point-min) (point-max) program
+ nil errors-buffer nil args))))
(with-current-buffer (get-buffer-create output-buffer)
(buffer-disable-undo)
(erase-buffer)
(let ((coding-system-for-read 'raw-text-dos))
(insert-file-contents output-file-name)))
(set-buffer errors-buffer)
- (if (memq status '(stop signal))
- (error "%s exited abnormally: '%s'" program exit-status))
- (if (= 127 exit-status)
- (error "%s could not be found" program))))
- (if (and process (eq 'run (process-status process)))
- (interrupt-process process))
+ (if (not (equal exit-status 0))
+ (insert (format "\n%s exited abnormally: '%s'\n"
+ program exit-status)))))
(if (file-exists-p output-file-name)
(delete-file output-file-name))
(set-default-file-modes orig-mode))))
-(defun pgg-gpg-possibly-cache-passphrase (passphrase)
+(defun pgg-gpg-possibly-cache-passphrase (passphrase &optional key)
(if (and pgg-cache-passphrase
(progn
(goto-char (point-min))
- (re-search-forward "^\\[GNUPG:] GOOD_PASSPHRASE\\>" nil t)))
+ (re-search-forward "^\\[GNUPG:] \\(GOOD_PASSPHRASE\\>\\)\\|\\(SIG_CREATED\\)" nil t)))
(pgg-add-passphrase-cache
- (progn
- (goto-char (point-min))
- (if (re-search-forward
- "^\\[GNUPG:] NEED_PASSPHRASE \\w+ ?\\w*" nil t)
- (substring (match-string 0) -8)))
+ (or key
+ (progn
+ (goto-char (point-min))
+ (if (re-search-forward
+ "^\\[GNUPG:] NEED_PASSPHRASE\\(_PIN\\)? \\w+ ?\\w*" nil t)
+ (substring (match-string 0) -8))))
passphrase)))
+(defvar pgg-gpg-all-secret-keys 'unknown)
+
+(defun pgg-gpg-lookup-all-secret-keys ()
+ "Return all secret keys present in secret key ring."
+ (when (eq pgg-gpg-all-secret-keys 'unknown)
+ (setq pgg-gpg-all-secret-keys '())
+ (let ((args (list "--with-colons" "--no-greeting" "--batch"
+ "--list-secret-keys")))
+ (with-temp-buffer
+ (apply #'call-process pgg-gpg-program nil t nil args)
+ (goto-char (point-min))
+ (while (re-search-forward
+ "^\\(sec\\|pub\\):[^:]*:[^:]*:[^:]*:\\([^:]*\\)" nil t)
+ (push (substring (match-string 2) 8)
+ pgg-gpg-all-secret-keys)))))
+ pgg-gpg-all-secret-keys)
+
(defun pgg-gpg-lookup-key (string &optional type)
"Search keys associated with STRING."
(let ((args (list "--with-colons" "--no-greeting" "--batch"
(with-temp-buffer
(apply #'call-process pgg-gpg-program nil t nil args)
(goto-char (point-min))
- (if (re-search-forward "^\\(sec\\|pub\\):" nil t)
- (substring
- (nth 3 (split-string
- (buffer-substring (match-end 0)
- (progn (end-of-line)(point)))
- ":")) 8)))))
+ (if (re-search-forward "^\\(sec\\|pub\\):[^:]*:[^:]*:[^:]*:\\([^:]*\\)"
+ nil t)
+ (substring (match-string 2) 8)))))
(defun pgg-gpg-encrypt-region (start end recipients &optional sign)
"Encrypt the current region between START and END.
(when sign
(pgg-read-passphrase
(format "GnuPG passphrase for %s: " pgg-gpg-user-id)
- (pgg-gpg-lookup-key pgg-gpg-user-id 'encrypt))))
+ pgg-gpg-user-id)))
(args
(append
(list "--batch" "--armor" "--always-trust" "--encrypt")
(if recipients
(apply #'nconc
(mapcar (lambda (rcpt)
- (list "--remote-user" rcpt))
+ (list pgg-gpg-recipient-argument rcpt))
(append recipients
(if pgg-encrypt-for-me
(list pgg-gpg-user-id)))))))))
(pgg-gpg-process-region start end passphrase pgg-gpg-program args))
(when sign
(with-current-buffer pgg-errors-buffer
+ ;; Possibly cache passphrase under, e.g. "jas", for future sign.
+ (pgg-gpg-possibly-cache-passphrase passphrase pgg-gpg-user-id)
+ ;; Possibly cache passphrase under, e.g. B565716F, for future decrypt.
(pgg-gpg-possibly-cache-passphrase passphrase)))
(pgg-process-when-success)))
(defun pgg-gpg-decrypt-region (start end)
"Decrypt the current region between START and END."
- (let* ((pgg-gpg-user-id (or pgg-gpg-user-id pgg-default-user-id))
+ (let* ((current-buffer (current-buffer))
+ (message-keys (with-temp-buffer
+ (insert-buffer-substring current-buffer)
+ (pgg-decode-armor-region (point-min) (point-max))))
+ (secret-keys (pgg-gpg-lookup-all-secret-keys))
+ (key (pgg-gpg-select-matching-key message-keys secret-keys))
+ (pgg-gpg-user-id (or key pgg-gpg-user-id pgg-default-user-id))
(passphrase
(pgg-read-passphrase
(format "GnuPG passphrase for %s: " pgg-gpg-user-id)
- (pgg-gpg-lookup-key pgg-gpg-user-id 'encrypt)))
+ pgg-gpg-user-id))
(args '("--batch" "--decrypt")))
(pgg-gpg-process-region start end passphrase pgg-gpg-program args)
(with-current-buffer pgg-errors-buffer
- (pgg-gpg-possibly-cache-passphrase passphrase)
+ (pgg-gpg-possibly-cache-passphrase passphrase pgg-gpg-user-id)
(goto-char (point-min))
(re-search-forward "^\\[GNUPG:] DECRYPTION_OKAY\\>" nil t))))
+(defun pgg-gpg-select-matching-key (message-keys secret-keys)
+ "Choose a key from MESSAGE-KEYS that matches one of the keys in SECRET-KEYS."
+ (loop for message-key in message-keys
+ for message-key-id = (and (equal (car message-key) 1)
+ (cdr (assq 'key-identifier message-key)))
+ for key = (and message-key-id (pgg-lookup-key message-key-id 'encrypt))
+ when (and key (member key secret-keys)) return key))
+
(defun pgg-gpg-sign-region (start end &optional cleartext)
"Make detached signature from text between START and END."
(let* ((pgg-gpg-user-id (or pgg-gpg-user-id pgg-default-user-id))
(passphrase
(pgg-read-passphrase
(format "GnuPG passphrase for %s: " pgg-gpg-user-id)
- (pgg-gpg-lookup-key pgg-gpg-user-id 'sign)))
+ pgg-gpg-user-id))
(args
(list (if cleartext "--clearsign" "--detach-sign")
"--armor" "--batch" "--verbose"
(pgg-as-lbt start end 'CRLF
(pgg-gpg-process-region start end passphrase pgg-gpg-program args))
(with-current-buffer pgg-errors-buffer
+ ;; Possibly cache passphrase under, e.g. "jas", for future sign.
+ (pgg-gpg-possibly-cache-passphrase passphrase pgg-gpg-user-id)
+ ;; Possibly cache passphrase under, e.g. B565716F, for future decrypt.
(pgg-gpg-possibly-cache-passphrase passphrase))
(pgg-process-when-success)))
(when (re-search-forward "^\\[GNUPG:] IMPORT_RES\\>" nil t)
(setq status (buffer-substring (match-end 0)
(progn (end-of-line)(point)))
- status (vconcat (mapcar #'string-to-int (split-string status))))
+ status (vconcat (mapcar #'string-to-number (split-string status))))
(erase-buffer)
(insert (format "Imported %d key(s).
\tArmor contains %d key(s) [%d bad, %d old].\n"
(provide 'pgg-gpg)
+;;; arch-tag: 2aa5d5d8-93a0-4865-9312-33e29830e000
;;; pgg-gpg.el ends here
projects / gnus / blobdiff