* epg.el (epg-status-GET_BOOL): New function.

[elisp/epg.git] / epg-file.el

diff --git a/epg-file.el b/epg-file.el
index d3f5da1..cd6f6a0 100644 (file)
--- a/epg-file.el
+++ b/epg-file.el
@@ -1,5 +1,42 @@
+;;; epg-file.el --- transparent file encryption utility
+;; Copyright (C) 1999, 2000, 2002, 2003, 2004,
+;;   2005, 2006 Free Software Foundation, Inc.
+;; Copyright (C) 2006 Daiki Ueno
+
+;; Author: Daiki Ueno <ueno@unixuser.org>
+;;     Naoto Morishima <naoto@morishima.net>
+;; Keywords: PGP, GnuPG
+
+;; This file is part of EasyPG.
+
+;; 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.
+
+;; 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.
+
+;; 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., 51 Franklin Street, Fifth Floor,
+;; Boston, MA 02110-1301, USA.
+
+;;; Commentary:
+
+;; epg-file.el is based on hedgehog.el by Naoto Morishima.
+;; http://www.morishima.net/~naoto/software/hedgehog/index.php.ja
+
+;;; Code:
+
 (require 'epg)
 
+(defgroup epg-file ()
+  "Transparent file encryption utility of EasyPG."
+  :group 'epg)
+
 (defcustom epg-file-name-regexp "\\.gpg\\'"
   "Regexp that matches filenames that are assumed to be encrypted
 with GnuPG."
@@ -20,6 +57,8 @@ with GnuPG."
        (inhibit-file-name-operation operation))
     (apply operation args)))
 
+(defvar buffer-file-type)
+(defvar last-coding-system-used)
 (defun epg-file-write-region (start end filename &optional append visit
                                    lockname mustbenew)
   (let* ((visit-file (if (stringp visit)
@@ -29,7 +68,9 @@ with GnuPG."
          (coding-system (condition-case nil
                            (epg-file-run-real-handler
                             'write-region (list start end "/"))
-                          (file-error last-coding-system-used)))
+                          (file-error (if (boundp 'last-coding-system-used)
+                                         last-coding-system-used
+                                       buffer-file-coding-system))))
          ;; start and end are normally buffer positions
          ;; specifying the part of the buffer to write.
          ;; If start is nil, that means to use the entire buffer contents.
@@ -44,7 +85,8 @@ with GnuPG."
                                          (buffer-substring start end)))
                                        coding-system)))
     (with-temp-buffer
-      (set-buffer-multibyte nil)
+      (if (fboundp 'set-buffer-multibyte)
+         (set-buffer-multibyte nil))
       ;; Optional fourth argument append if non-nil means
       ;;   append to existing file contents (if any).  If it is an integer,
       ;;   seek to that offset in the file before writing.
@@ -62,9 +104,17 @@ with GnuPG."
       (let ((coding-system-for-write 'binary)
             (coding-system-for-read 'binary)
            (context (epg-make-context))
+           recipients
+           string
            cipher)
-       (when (setq cipher (epg-encrypt-string context (buffer-string) nil))
-         (if (memq system-type '(ms-dos windows-nt))
+       (while (not (equal (setq string
+                                (read-string "To (end with an empty line): "))
+                          ""))
+         (setq recipients (cons string recipients)))
+       (when (setq cipher (epg-encrypt-string context (buffer-string)
+                                              recipients))
+         (if (and (memq system-type '(ms-dos windows-nt))
+                  (boundp 'buffer-file-type))
              (setq buffer-file-type t))
          (epg-file-run-real-handler
           'write-region
@@ -80,11 +130,12 @@ with GnuPG."
     (when (or (eq visit t) (stringp visit))
       (setq buffer-file-name filename)
       (set-visited-file-modtime))
-    (when (stringp visit)
-      (setq buffer-file-name visit))
+    (if (stringp visit)
+       (setq buffer-file-name visit))
     (when (or (eq visit t) (eq visit nil) (stringp visit))
       (message "Wrote %s" visit-file))
-    (setq last-coding-system-used coding-system)
+    (if (boundp 'last-coding-system-used)
+       (setq last-coding-system-used coding-system))
     nil))
 
 (defun epg-file-insert-file-contents (filename &optional visit beg end replace)
@@ -145,3 +196,7 @@ with GnuPG."
   (setq auto-mode-alist
        (cons (list epg-file-name-regexp nil 'strip-suffix)
              auto-mode-alist)))
+
+(provide 'epg-file)
+
+;;; epg-file.el ends here