2004-09-04 13:13:48 +00:00
|
|
|
;;; pgg-gpg.el --- GnuPG support for PGG.
|
|
|
|
|
|
2005-08-06 19:51:42 +00:00
|
|
|
;; Copyright (C) 1999, 2000, 2002, 2003, 2004,
|
2006-02-06 15:23:23 +00:00
|
|
|
;; 2005, 2006 Free Software Foundation, Inc.
|
2004-09-04 13:13:48 +00:00
|
|
|
|
|
|
|
|
;; Author: Daiki Ueno <ueno@unixuser.org>
|
2006-03-27 09:36:18 +00:00
|
|
|
;; Symmetric encryption support added by: Sascha Wilde <wilde@sha-bang.de>
|
2004-09-04 13:13:48 +00:00
|
|
|
;; Created: 1999/10/28
|
|
|
|
|
;; Keywords: PGP, OpenPGP, GnuPG
|
|
|
|
|
|
|
|
|
|
;; 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
|
2005-07-04 17:55:18 +00:00
|
|
|
;; Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
|
|
|
|
|
;; Boston, MA 02110-1301, USA.
|
2004-09-04 13:13:48 +00:00
|
|
|
|
|
|
|
|
;;; Code:
|
|
|
|
|
|
|
|
|
|
(eval-when-compile
|
|
|
|
|
(require 'pgg))
|
|
|
|
|
|
|
|
|
|
(defgroup pgg-gpg ()
|
2005-07-04 00:56:54 +00:00
|
|
|
"GnuPG interface."
|
2004-09-04 13:13:48 +00:00
|
|
|
:group 'pgg)
|
|
|
|
|
|
|
|
|
|
(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 '(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")))
|
|
|
|
|
|
2006-03-22 16:09:16 +00:00
|
|
|
(defcustom pgg-gpg-use-agent nil
|
|
|
|
|
"Whether to use gnupg agent for key caching."
|
2006-03-21 14:27:05 +00:00
|
|
|
:group 'pgg-gpg
|
|
|
|
|
:type 'boolean)
|
|
|
|
|
|
2004-09-04 13:13:48 +00:00
|
|
|
(defvar pgg-gpg-user-id nil
|
|
|
|
|
"GnuPG ID of your default identity.")
|
|
|
|
|
|
2006-03-27 09:36:18 +00:00
|
|
|
(defvar pgg-gpg-user-id-alist nil
|
|
|
|
|
"An alist mapping from key ID to user ID.")
|
|
|
|
|
|
|
|
|
|
(defvar pgg-gpg-read-point nil)
|
|
|
|
|
(defvar pgg-gpg-output-file-name nil)
|
|
|
|
|
(defvar pgg-gpg-pending-status-list nil)
|
|
|
|
|
(defvar pgg-gpg-key-id nil)
|
|
|
|
|
(defvar pgg-gpg-passphrase nil)
|
|
|
|
|
(defvar pgg-gpg-debug nil)
|
|
|
|
|
|
|
|
|
|
(defun pgg-gpg-start-process (args)
|
|
|
|
|
(let* ((output-file-name (pgg-make-temp-file "pgg-output"))
|
2004-09-04 13:13:48 +00:00
|
|
|
(args
|
2006-03-27 09:36:18 +00:00
|
|
|
(append (list "--no-tty"
|
|
|
|
|
"--status-fd" "1"
|
|
|
|
|
"--command-fd" "0"
|
|
|
|
|
"--yes" ; overwrite
|
|
|
|
|
"--output" output-file-name)
|
|
|
|
|
(if pgg-gpg-use-agent '("--use-agent"))
|
|
|
|
|
pgg-gpg-extra-args
|
|
|
|
|
args))
|
|
|
|
|
(coding-system-for-write 'binary)
|
2004-09-04 13:13:48 +00:00
|
|
|
(process-connection-type nil)
|
2006-03-27 09:36:18 +00:00
|
|
|
(orig-mode (default-file-modes))
|
|
|
|
|
default-enable-multibyte-characters
|
|
|
|
|
(buffer (generate-new-buffer " *pgg-gpg*"))
|
|
|
|
|
process)
|
|
|
|
|
(with-current-buffer buffer
|
|
|
|
|
(make-local-variable 'pgg-gpg-read-point)
|
|
|
|
|
(setq pgg-gpg-read-point (point-min))
|
|
|
|
|
(make-local-variable 'pgg-gpg-output-file-name)
|
|
|
|
|
(setq pgg-gpg-output-file-name output-file-name)
|
|
|
|
|
(make-local-variable 'pgg-gpg-pending-status-list)
|
|
|
|
|
(setq pgg-gpg-pending-status-list nil)
|
|
|
|
|
(make-local-variable 'pgg-gpg-key-id)
|
|
|
|
|
(setq pgg-gpg-key-id nil)
|
|
|
|
|
(make-local-variable 'pgg-gpg-passphrase)
|
|
|
|
|
(setq pgg-gpg-passphrase nil))
|
2004-09-04 13:13:48 +00:00
|
|
|
(unwind-protect
|
|
|
|
|
(progn
|
|
|
|
|
(set-default-file-modes 448)
|
2006-03-27 09:36:18 +00:00
|
|
|
(setq process
|
|
|
|
|
(apply #'start-process "pgg-gpg" buffer pgg-gpg-program args)))
|
|
|
|
|
(set-default-file-modes orig-mode))
|
|
|
|
|
(set-process-filter process #'pgg-gpg-process-filter)
|
|
|
|
|
(set-process-sentinel process #'pgg-gpg-process-sentinel)
|
|
|
|
|
process))
|
|
|
|
|
|
|
|
|
|
(defun pgg-gpg-process-filter (process input)
|
2006-04-03 09:12:08 +00:00
|
|
|
(if (buffer-live-p (process-buffer process))
|
2006-03-27 09:36:18 +00:00
|
|
|
(save-excursion
|
2006-04-03 09:12:08 +00:00
|
|
|
(if pgg-gpg-debug
|
|
|
|
|
(save-excursion
|
|
|
|
|
(set-buffer (get-buffer-create " *pgg-gpg-debug*"))
|
|
|
|
|
(goto-char (point-max))
|
|
|
|
|
(insert input)))
|
|
|
|
|
(set-buffer (process-buffer process))
|
|
|
|
|
(goto-char (point-max))
|
|
|
|
|
(insert input)
|
|
|
|
|
(goto-char pgg-gpg-read-point)
|
|
|
|
|
(beginning-of-line)
|
|
|
|
|
(while (looking-at ".*\n") ;the input line is finished
|
|
|
|
|
(save-excursion
|
|
|
|
|
(if (looking-at "\\[GNUPG:] \\([A-Z_]+\\)\\>.*")
|
|
|
|
|
(let* ((status (match-string 1))
|
|
|
|
|
(symbol (intern-soft (concat "pgg-gpg-status-" status)))
|
|
|
|
|
(entry (member status pgg-gpg-pending-status-list)))
|
|
|
|
|
(if entry
|
|
|
|
|
(setq pgg-gpg-pending-status-list
|
|
|
|
|
(delq (car entry)
|
|
|
|
|
pgg-gpg-pending-status-list)))
|
|
|
|
|
(if (and symbol
|
|
|
|
|
(fboundp symbol))
|
|
|
|
|
(funcall symbol process (buffer-substring (match-beginning 1)
|
|
|
|
|
(match-end 0)))))))
|
|
|
|
|
(forward-line))
|
|
|
|
|
(setq pgg-gpg-read-point (point)))))
|
2006-03-27 09:36:18 +00:00
|
|
|
|
|
|
|
|
(defun pgg-gpg-process-sentinel (process status)
|
|
|
|
|
(set-process-filter process nil)
|
|
|
|
|
(save-excursion
|
|
|
|
|
;; Copy the contents of process-buffer to pgg-errors-buffer.
|
|
|
|
|
(set-buffer (get-buffer-create pgg-errors-buffer))
|
|
|
|
|
(buffer-disable-undo)
|
|
|
|
|
(erase-buffer)
|
|
|
|
|
(when (buffer-live-p (process-buffer process))
|
|
|
|
|
(insert-buffer-substring (process-buffer process))
|
|
|
|
|
(goto-char (point-min))
|
2006-04-03 09:12:08 +00:00
|
|
|
;(delete-matching-lines "^\\[GNUPG:] ")
|
2006-03-27 09:36:18 +00:00
|
|
|
(goto-char (point-min))
|
|
|
|
|
(while (re-search-forward "^gpg: " nil t)
|
|
|
|
|
(replace-match "")))
|
|
|
|
|
;; Read the contents of the output file to pgg-output-buffer.
|
|
|
|
|
(set-buffer (get-buffer-create pgg-output-buffer))
|
|
|
|
|
(buffer-disable-undo)
|
|
|
|
|
(erase-buffer)
|
|
|
|
|
(if (and (equal status "finished\n")
|
|
|
|
|
(buffer-live-p (process-buffer process)))
|
|
|
|
|
(let ((output-file-name (with-current-buffer (process-buffer process)
|
|
|
|
|
pgg-gpg-output-file-name)))
|
|
|
|
|
(when (file-exists-p output-file-name)
|
|
|
|
|
(let ((coding-system-for-read (if pgg-text-mode
|
|
|
|
|
'raw-text
|
|
|
|
|
'binary)))
|
|
|
|
|
(insert-file-contents output-file-name))
|
|
|
|
|
(delete-file output-file-name))))))
|
|
|
|
|
|
|
|
|
|
(defun pgg-gpg-wait-for-status (process status-list)
|
|
|
|
|
(with-current-buffer (process-buffer process)
|
|
|
|
|
(setq pgg-gpg-pending-status-list status-list)
|
|
|
|
|
(while (and (eq (process-status process) 'run)
|
|
|
|
|
pgg-gpg-pending-status-list)
|
|
|
|
|
(accept-process-output process 1))))
|
|
|
|
|
|
|
|
|
|
(defun pgg-gpg-wait-for-completion (process &optional status-list)
|
|
|
|
|
(process-send-eof process)
|
|
|
|
|
(while (eq (process-status process) 'run)
|
|
|
|
|
(sit-for 0.1))
|
2006-04-03 09:12:08 +00:00
|
|
|
(if (buffer-live-p (process-buffer process))
|
|
|
|
|
(save-excursion
|
|
|
|
|
(set-buffer (process-buffer process))
|
|
|
|
|
(setq status-list (copy-sequence status-list))
|
|
|
|
|
(let ((pointer status-list))
|
|
|
|
|
(while pointer
|
|
|
|
|
(goto-char (point-min))
|
|
|
|
|
(unless (re-search-forward
|
|
|
|
|
(concat "^\\[GNUPG:] " (car pointer) "\\>")
|
|
|
|
|
nil t)
|
|
|
|
|
(setq status-list (delq (car pointer) status-list)))
|
|
|
|
|
(setq pointer (cdr pointer))))
|
|
|
|
|
(kill-buffer (process-buffer process))
|
|
|
|
|
status-list)))
|
2006-03-27 09:36:18 +00:00
|
|
|
|
|
|
|
|
(defun pgg-gpg-status-USERID_HINT (process line)
|
|
|
|
|
(if (string-match "\\`USERID_HINT \\([^ ]+\\) \\(.*\\)" line)
|
|
|
|
|
(let* ((key-id (match-string 1 line))
|
|
|
|
|
(user-id (match-string 2 line))
|
|
|
|
|
(entry (assoc key-id pgg-gpg-user-id-alist)))
|
|
|
|
|
(if entry
|
|
|
|
|
(setcdr entry user-id)
|
|
|
|
|
(setq pgg-gpg-user-id-alist (cons (cons key-id user-id)
|
|
|
|
|
pgg-gpg-user-id-alist))))))
|
|
|
|
|
|
|
|
|
|
(defun pgg-gpg-status-NEED_PASSPHRASE (process line)
|
|
|
|
|
(if (string-match "\\`NEED_PASSPHRASE \\([^ ]+\\)" line)
|
|
|
|
|
(setq pgg-gpg-key-id (match-string 1 line))))
|
|
|
|
|
|
|
|
|
|
(defun pgg-gpg-status-NEED_PASSPHRASE_SYM (process line)
|
|
|
|
|
(setq pgg-gpg-key-id 'SYM))
|
|
|
|
|
|
|
|
|
|
(defun pgg-gpg-status-NEED_PASSPHRASE_PIN (process line)
|
|
|
|
|
(setq pgg-gpg-key-id 'PIN))
|
|
|
|
|
|
|
|
|
|
(defun pgg-gpg-status-GET_HIDDEN (process line)
|
|
|
|
|
(let ((entry (assoc pgg-gpg-key-id pgg-gpg-user-id-alist)))
|
|
|
|
|
(if (setq pgg-gpg-passphrase
|
|
|
|
|
(if (eq pgg-gpg-key-id 'SYM)
|
|
|
|
|
(pgg-read-passphrase
|
|
|
|
|
"GnuPG passphrase for symmetric encryption: ")
|
|
|
|
|
(pgg-read-passphrase
|
|
|
|
|
(format "GnuPG passphrase for %s: "
|
|
|
|
|
(if entry
|
|
|
|
|
(cdr entry)
|
|
|
|
|
pgg-gpg-key-id))
|
|
|
|
|
(if (eq pgg-gpg-key-id 'PIN)
|
|
|
|
|
"PIN"
|
|
|
|
|
pgg-gpg-key-id))))
|
|
|
|
|
(process-send-string process (concat pgg-gpg-passphrase "\n")))))
|
|
|
|
|
|
|
|
|
|
(defun pgg-gpg-status-GOOD_PASSPHRASE (process line)
|
|
|
|
|
(when (and pgg-gpg-passphrase
|
|
|
|
|
(stringp pgg-gpg-key-id))
|
|
|
|
|
(pgg-add-passphrase-to-cache pgg-gpg-key-id pgg-gpg-passphrase)
|
|
|
|
|
(setq pgg-gpg-passphrase nil)))
|
|
|
|
|
|
|
|
|
|
(defun pgg-gpg-status-BAD_PASSPHRASE (process line)
|
|
|
|
|
(when pgg-gpg-passphrase
|
|
|
|
|
(fillarray pgg-gpg-passphrase 0)
|
|
|
|
|
(setq pgg-gpg-passphrase nil)))
|
2004-09-04 13:13:48 +00:00
|
|
|
|
|
|
|
|
(defun pgg-gpg-lookup-key (string &optional type)
|
|
|
|
|
"Search keys associated with STRING."
|
|
|
|
|
(let ((args (list "--with-colons" "--no-greeting" "--batch"
|
|
|
|
|
(if type "--list-secret-keys" "--list-keys")
|
|
|
|
|
string)))
|
|
|
|
|
(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 (match-string 2) 8)))))
|
|
|
|
|
|
2005-10-29 11:31:08 +00:00
|
|
|
(defun pgg-gpg-encrypt-region (start end recipients &optional sign passphrase)
|
2004-09-04 13:13:48 +00:00
|
|
|
"Encrypt the current region between START and END.
|
2005-10-29 11:31:08 +00:00
|
|
|
|
2006-03-27 09:36:18 +00:00
|
|
|
If optional argument SIGN is non-nil, do a combined sign and encrypt."
|
2004-09-04 13:13:48 +00:00
|
|
|
(let* ((pgg-gpg-user-id (or pgg-gpg-user-id pgg-default-user-id))
|
|
|
|
|
(args
|
|
|
|
|
(append
|
2006-03-27 09:36:18 +00:00
|
|
|
'("--armor" "--always-trust" "--encrypt")
|
|
|
|
|
(if pgg-text-mode '("--textmode"))
|
2004-09-04 13:13:48 +00:00
|
|
|
(if sign (list "--sign" "--local-user" pgg-gpg-user-id))
|
|
|
|
|
(if recipients
|
|
|
|
|
(apply #'nconc
|
|
|
|
|
(mapcar (lambda (rcpt)
|
|
|
|
|
(list pgg-gpg-recipient-argument rcpt))
|
|
|
|
|
(append recipients
|
|
|
|
|
(if pgg-encrypt-for-me
|
2006-03-27 09:36:18 +00:00
|
|
|
(list pgg-gpg-user-id))))))))
|
|
|
|
|
(process (pgg-gpg-start-process args)))
|
|
|
|
|
(if (and sign (not pgg-gpg-use-agent))
|
|
|
|
|
(pgg-gpg-wait-for-status process '("GOOD_PASSPHRASE")))
|
|
|
|
|
(process-send-region process start end)
|
|
|
|
|
(pgg-gpg-wait-for-completion process '("SIG_CREATED" "END_ENCRYPTION"))))
|
2004-09-04 13:13:48 +00:00
|
|
|
|
2005-10-29 11:31:08 +00:00
|
|
|
(defun pgg-gpg-encrypt-symmetric-region (start end &optional passphrase)
|
2006-03-27 09:36:18 +00:00
|
|
|
"Encrypt the current region between START and END with symmetric cipher."
|
|
|
|
|
(let* ((args
|
|
|
|
|
(append '("--armor" "--symmetric")
|
|
|
|
|
(if pgg-text-mode '("--textmode"))))
|
|
|
|
|
(process (pgg-gpg-start-process args)))
|
|
|
|
|
(pgg-gpg-wait-for-status process '("BEGIN_ENCRYPTION"))
|
|
|
|
|
(process-send-region process start end)
|
|
|
|
|
(pgg-gpg-wait-for-completion process '("END_ENCRYPTION"))))
|
2005-10-29 11:31:08 +00:00
|
|
|
|
|
|
|
|
(defun pgg-gpg-decrypt-region (start end &optional passphrase)
|
2006-03-27 09:36:18 +00:00
|
|
|
"Decrypt the current region between START and END."
|
|
|
|
|
(let* ((args '("--decrypt"))
|
|
|
|
|
(process (pgg-gpg-start-process args)))
|
|
|
|
|
(process-send-region process start end)
|
|
|
|
|
(pgg-gpg-wait-for-status process '("BEGIN_DECRYPTION"))
|
|
|
|
|
(pgg-gpg-wait-for-completion process '("GOODSIG" "DECRYPTION_OKAY"))))
|
2004-09-04 13:13:48 +00:00
|
|
|
|
2005-10-29 11:31:08 +00:00
|
|
|
(defun pgg-gpg-sign-region (start end &optional cleartext passphrase)
|
2004-09-04 13:13:48 +00:00
|
|
|
"Make detached signature from text between START and END."
|
|
|
|
|
(let* ((pgg-gpg-user-id (or pgg-gpg-user-id pgg-default-user-id))
|
|
|
|
|
(args
|
2006-02-10 05:08:29 +00:00
|
|
|
(append (list (if cleartext "--clearsign" "--detach-sign")
|
2006-03-27 09:36:18 +00:00
|
|
|
"--armor" "--verbose"
|
2006-02-10 05:08:29 +00:00
|
|
|
"--local-user" pgg-gpg-user-id)
|
2006-03-27 09:36:18 +00:00
|
|
|
(if pgg-text-mode '("--textmode"))))
|
|
|
|
|
(process (pgg-gpg-start-process args)))
|
|
|
|
|
(unless pgg-gpg-use-agent
|
|
|
|
|
(pgg-gpg-wait-for-status process '("GOOD_PASSPHRASE")))
|
|
|
|
|
(process-send-region process start end)
|
|
|
|
|
(pgg-gpg-wait-for-completion process '("SIG_CREATED"))))
|
2004-09-04 13:13:48 +00:00
|
|
|
|
|
|
|
|
(defun pgg-gpg-verify-region (start end &optional signature)
|
|
|
|
|
"Verify region between START and END as the detached signature SIGNATURE."
|
2006-03-27 09:36:18 +00:00
|
|
|
(let ((args '("--verify"))
|
|
|
|
|
process)
|
2004-09-04 13:13:48 +00:00
|
|
|
(when (stringp signature)
|
|
|
|
|
(setq args (append args (list signature))))
|
2006-03-27 09:36:18 +00:00
|
|
|
(setq process (pgg-gpg-start-process (append args '("-"))))
|
|
|
|
|
(process-send-region process start end)
|
|
|
|
|
(pgg-gpg-wait-for-completion process '("GOODSIG"))))
|
2004-09-04 13:13:48 +00:00
|
|
|
|
|
|
|
|
(defun pgg-gpg-insert-key ()
|
|
|
|
|
"Insert public key at point."
|
|
|
|
|
(let* ((pgg-gpg-user-id (or pgg-gpg-user-id pgg-default-user-id))
|
2006-03-27 09:36:18 +00:00
|
|
|
(args (list "--export" "--armor"
|
|
|
|
|
pgg-gpg-user-id))
|
|
|
|
|
(process (pgg-gpg-start-process args)))
|
|
|
|
|
(pgg-gpg-wait-for-completion process)
|
2004-09-04 13:13:48 +00:00
|
|
|
(insert-buffer-substring pgg-output-buffer)))
|
|
|
|
|
|
|
|
|
|
(defun pgg-gpg-snarf-keys-region (start end)
|
|
|
|
|
"Add all public keys in region between START and END to the keyring."
|
2006-03-27 09:36:18 +00:00
|
|
|
(let* ((args '("--import" "-"))
|
|
|
|
|
(process (pgg-gpg-start-process args))
|
|
|
|
|
status)
|
|
|
|
|
(process-send-region process start end)
|
|
|
|
|
(pgg-gpg-wait-for-completion process '("IMPORT_RES"))))
|
2006-03-22 16:09:16 +00:00
|
|
|
|
2004-09-04 13:13:48 +00:00
|
|
|
(provide 'pgg-gpg)
|
|
|
|
|
|
|
|
|
|
;;; arch-tag: 2aa5d5d8-93a0-4865-9312-33e29830e000
|
|
|
|
|
;;; pgg-gpg.el ends here
|
