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 lookup-key-string ((scheme pgg-scheme-pgp5)
130 string &optional type)
131 (let ((args (list "+language=en" "-l" string)))
132 (pgg-pgp5-process-region (point)(point) nil
133 pgg-pgp5-pgpk-program args)
134 (with-current-buffer pgg-output-buffer
135 (goto-char (point-min))
136 (when (re-search-forward "^sec" nil t)
139 (buffer-substring (match-end 0)
140 (progn (end-of-line)(point)))
145 (luna-define-method encrypt-region ((scheme pgg-scheme-pgp5)
146 start end recipients)
147 (let* ((pgg-pgp5-user-id pgg-default-user-id)
150 (format "PGP passphrase for %s: " pgg-pgp5-user-id)
151 (luna-send scheme 'lookup-key-string
152 scheme pgg-pgp5-user-id 'encrypt)))
154 `("+NoBatchInvalidKeys=off" "-fat" "+batchmode=1"
157 (mapcar (lambda (rcpt)
159 (concat "\"" rcpt "\"")))
161 (pgg-pgp5-process-region start end passphrase
162 pgg-pgp5-pgpe-program args)
163 (with-current-buffer pgg-output-buffer
164 (if (zerop (buffer-size))
165 (insert-buffer-substring pgg-errors-buffer)
167 (cdr (assq 1 (pgg-parse-armor-region
168 (point-min)(point-max))))))
169 (pgg-add-passphrase-cache
170 (cdr (assq 'key-identifier packet))
174 (luna-define-method decrypt-region ((scheme pgg-scheme-pgp5)
176 (let* ((pgg-pgp5-user-id pgg-default-user-id)
179 (format "PGP passphrase for %s: " pgg-pgp5-user-id)
180 (luna-send scheme 'lookup-key-string
181 scheme pgg-pgp5-user-id 'encrypt)))
183 '("+verbose=1" "+batchmode=1" "+language=us" "-f")))
184 (pgg-pgp5-process-region start end passphrase
185 pgg-pgp5-pgpv-program args)
186 (with-current-buffer pgg-output-buffer
187 (when (zerop (buffer-size))
188 (insert-buffer-substring pgg-errors-buffer)))
191 (luna-define-method sign-region ((scheme pgg-scheme-pgp5)
193 (let* ((pgg-pgp5-user-id pgg-default-user-id)
196 (format "PGP passphrase for %s: " pgg-pgp5-user-id)
197 (luna-send scheme 'lookup-key-string
198 scheme pgg-pgp5-user-id 'sign)))
200 (list "-fbat" "+verbose=1" "+language=us" "+batchmode=1"
201 "-u" pgg-pgp5-user-id)))
202 (pgg-pgp5-process-region start end passphrase
203 pgg-pgp5-pgps-program args)
204 (with-current-buffer pgg-output-buffer
205 (if (zerop (buffer-size))
206 (insert-buffer-substring pgg-errors-buffer)
208 (cdr (assq 2 (pgg-parse-armor-region
209 (point-min)(point-max))))))
210 (pgg-add-passphrase-cache
211 (cdr (assq 'key-identifier packet))
215 (luna-define-method verify-region ((scheme pgg-scheme-pgp5)
216 start end &optional signature)
217 (let* ((basename (expand-file-name "pgg" temporary-file-directory))
218 (orig-file (make-temp-name basename))
219 (args '("+verbose=1" "+batchmode=1" "+language=us")))
220 (write-region-as-binary start end orig-file)
221 (when (stringp signature)
222 (copy-file signature (setq signature (concat orig-file ".asc")))
223 (setq args (append args (list signature)))
225 (pgg-pgp5-process-region (point-min)(point-max) nil
226 pgg-pgp5-pgpv-program args)
227 (delete-file orig-file)
228 (delete-file signature)
229 (set-buffer pgg-output-buffer)
230 (with-current-buffer pgg-output-buffer
231 (when (zerop (buffer-size))
232 (insert-buffer-substring pgg-errors-buffer)))
235 (luna-define-method insert-key ((scheme pgg-scheme-pgp5))
236 (let* ((pgg-pgp5-user-id pgg-default-user-id)
238 (list "+verbose=1" "+batchmode=1" "+language=us" "-x"
239 (concat "\"" pgg-pgp5-user-id "\""))))
240 (pgg-pgp5-process-region (point)(point) nil
241 pgg-pgp5-pgpk-program args)
242 (insert-buffer-substring pgg-output-buffer)
245 (luna-define-method snarf-keys-region ((scheme pgg-scheme-pgp5)
247 (let* ((pgg-pgp5-user-id pgg-default-user-id)
248 (basename (expand-file-name "pgg" temporary-file-directory))
249 (key-file (make-temp-name basename))
251 (list "+verbose=1" "+batchmode=1" "+language=us" "-a"
253 (write-region-as-raw-text-CRLF start end key-file)
254 (pgg-pgp5-process-region start end nil
255 pgg-pgp5-pgpk-program args)
256 (delete-file key-file)
261 ;;; pgg-pgp5.el ends here