1 ;;; pgg-pgp5.el --- PGP 5.* support for PGG.
3 ;; Copyright (C) 1999 Daiki Ueno
5 ;; Author: Daiki Ueno <ueno@ueda.info.waseda.ac.jp>
7 ;; Keywords: PGP, OpenPGP
9 ;; This file is part of SEMI (Secure Emacs MIME Interface).
11 ;; This program is free software; you can redistribute it and/or
12 ;; modify it under the terms of the GNU General Public License as
13 ;; published by the Free Software Foundation; either version 2, or (at
14 ;; your option) any later version.
16 ;; This program is distributed in the hope that it will be useful, but
17 ;; WITHOUT ANY WARRANTY; without even the implied warranty of
18 ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
19 ;; General Public License for more details.
21 ;; You should have received a copy of the GNU General Public License
22 ;; along with GNU Emacs; see the file COPYING. If not, write to the
23 ;; Free Software Foundation, Inc., 59 Temple Place - Suite 330,
24 ;; Boston, MA 02111-1307, USA.
28 (eval-when-compile (require 'pgg))
34 (defcustom pgg-pgp5-pgpe-program "pgpe"
35 "PGP 5.* 'pgpe' executable."
39 (defcustom pgg-pgp5-pgps-program "pgps"
40 "PGP 5.* 'pgps' executable."
44 (defcustom pgg-pgp5-pgpk-program "pgpk"
45 "PGP 5.* 'pgpk' executable."
49 (defcustom pgg-pgp5-pgpv-program "pgpv"
50 "PGP 5.* 'pgpv' executable."
54 (defcustom pgg-pgp5-shell-file-name "/bin/sh"
55 "The GnuPG executable."
59 (defcustom pgg-pgp5-extra-args nil
60 "Extra arguments for every PGP invocation."
65 (luna-define-class pgg-scheme-pgp5 (pgg-scheme))
68 (defvar pgg-pgp5-user-id nil
69 "GnuPG ID of your default identity.")
71 (defvar pgg-scheme-pgp5-instance nil)
74 (defun pgg-make-scheme-pgp5 ()
75 (or pgg-scheme-pgp5-instance
76 (setq pgg-scheme-pgp5-instance
77 (luna-make-entity 'pgg-scheme-pgp5))))
79 (defun pgg-pgp5-process-region (start end passphrase program args)
80 (let* ((errors-file-name
81 (concat temporary-file-directory
82 (make-temp-name "pgg-errors")))
86 (list (concat "2>" errors-file-name))))
87 (shell-file-name pgg-pgp5-shell-file-name)
88 (output-buffer pgg-output-buffer)
89 (errors-buffer pgg-errors-buffer)
90 (process-connection-type nil)
91 process status exit-status)
92 (with-current-buffer (get-buffer-create output-buffer)
96 (apply #'start-process-shell-command "*PGP*" output-buffer
98 (set-process-sentinel process 'ignore)
100 (setenv "PGPPASSFD" "0")
101 (process-send-string process (concat passphrase "\n")))
102 (process-send-region process start end)
103 (process-send-eof process)
104 (while (eq 'run (process-status process))
105 (accept-process-output process 5))
106 (setq status (process-status process)
107 exit-status (process-exit-status process))
108 (delete-process process)
109 (with-current-buffer output-buffer
110 (goto-char (point-min))
111 (while (search-forward "\r$" nil t)
113 (if (memq status '(stop signal))
114 (error "%s exited abnormally: '%s'" program exit-status))
115 (if (= 127 exit-status)
116 (error "%s could not be found" program))
118 (set-buffer (get-buffer-create errors-buffer))
119 (buffer-disable-undo)
121 (insert-file-contents errors-file-name)
122 (delete-file errors-file-name)
124 (if (and process (eq 'run (process-status process)))
125 (interrupt-process process))
129 (luna-define-method encrypt-region ((scheme pgg-scheme-pgp5)
130 start end recipients)
131 (let* ((pgg-pgp5-user-id pgg-default-user-id)
134 (format "PGP passphrase for %s: " pgg-pgp5-user-id)))
136 `("+NoBatchInvalidKeys=off" "-fat" "+batchmode=1"
139 (mapcar (lambda (rcpt)
141 (concat "\"" rcpt "\"")))
143 (pgg-pgp5-process-region start end passphrase
144 pgg-pgp5-pgpe-program args)
145 (with-current-buffer pgg-output-buffer
146 (when (zerop (buffer-size))
147 (insert-buffer-substring pgg-errors-buffer)))
150 (luna-define-method decrypt-region ((scheme pgg-scheme-pgp5)
152 (let* ((pgg-pgp5-user-id pgg-default-user-id)
155 (format "PGP passphrase for %s: " pgg-pgp5-user-id)))
157 '("+verbose=1" "+batchmode=1" "+language=us" "-f")))
158 (pgg-pgp5-process-region start end passphrase
159 pgg-pgp5-pgpv-program args)
160 (with-current-buffer pgg-output-buffer
161 (when (zerop (buffer-size))
162 (insert-buffer-substring pgg-errors-buffer)))
165 (luna-define-method sign-region ((scheme pgg-scheme-pgp5)
167 (let* ((pgg-pgp5-user-id pgg-default-user-id)
170 (format "PGP passphrase for %s: " pgg-pgp5-user-id)))
172 (list "-fbat" "+verbose=1" "+language=us" "+batchmode=1"
173 "-u" pgg-pgp5-user-id)))
174 (pgg-pgp5-process-region start end passphrase
175 pgg-pgp5-pgps-program args)
176 (with-current-buffer pgg-output-buffer
177 (when (zerop (buffer-size))
178 (insert-buffer-substring pgg-errors-buffer)))
181 (luna-define-method verify-region ((scheme pgg-scheme-pgp5)
182 start end &optional signature)
183 (let* ((basename (expand-file-name "pgg" temporary-file-directory))
184 (orig-file (make-temp-name basename))
185 (args '("+verbose=1" "+batchmode=1" "+language=us")))
186 (write-region-as-binary start end orig-file)
187 (when (stringp signature)
188 (copy-file signature (setq signature (concat orig-file ".asc")))
189 (setq args (append args (list signature)))
191 (pgg-pgp5-process-region (point-min)(point-max) nil
192 pgg-pgp5-pgpv-program args)
193 (delete-file orig-file)
194 (delete-file signature)
195 (set-buffer pgg-output-buffer)
196 (with-current-buffer pgg-output-buffer
197 (when (zerop (buffer-size))
198 (insert-buffer-substring pgg-errors-buffer)))
201 (luna-define-method insert-key ((scheme pgg-scheme-pgp5))
202 (let* ((pgg-pgp5-user-id pgg-default-user-id)
204 (list "+verbose=1" "+batchmode=1" "+language=us" "-x"
205 (concat "\"" pgg-pgp5-user-id "\""))))
206 (pgg-pgp5-process-region (point)(point) nil
207 pgg-pgp5-pgpk-program args)
208 (insert-buffer-substring pgg-output-buffer)
211 (luna-define-method snarf-keys-region ((scheme pgg-scheme-pgp5)
213 (let* ((pgg-pgp5-user-id pgg-default-user-id)
214 (basename (expand-file-name "pgg" temporary-file-directory))
215 (key-file (make-temp-name basename))
217 (list "+verbose=1" "+batchmode=1" "+language=us" "-a"
219 (write-region-as-raw-text-CRLF start end key-file)
220 (pgg-pgp5-process-region start end nil
221 pgg-pgp5-pgpk-program args)
222 (delete-file key-file)
227 ;;; pgg-pgp5.el ends here