-;;; epa-file.el --- the EasyPG Assistant hooks for transparent file encryption
+;;; epa-file.el --- the EasyPG Assistant, transparent file encryption
;; Copyright (C) 2006 Daiki Ueno
;; Author: Daiki Ueno <ueno@unixuser.org>
(defvar epa-file-passphrase-alist nil)
-(defun epa-file-passphrase-callback-function (key-id file)
+(defun epa-file-passphrase-callback-function (context key-id file)
(if (eq key-id 'SYM)
(let ((entry (assoc file epa-file-passphrase-alist))
passphrase)
(setq entry (list file)
epa-file-passphrase-alist (cons entry
epa-file-passphrase-alist)))
- (setq passphrase (epg-passphrase-callback-function key-id nil))
+ (setq passphrase (epg-passphrase-callback-function context
+ key-id nil))
(setcdr entry (copy-sequence passphrase))
passphrase)))
- (epg-passphrase-callback-function key-id nil)))
+ (epg-passphrase-callback-function context key-id nil)))
(defun epa-file-handler (operation &rest args)
(save-match-data
(defvar last-coding-system-used)
(defun epa-file-insert-file-contents (file &optional visit beg end replace)
(barf-if-buffer-read-only)
- (if (or beg end)
- (error "Can't read the file partially."))
+ (if (and visit (or beg end))
+ (error "Attempt to visit less than an entire file"))
(setq file (expand-file-name file))
(let ((local-copy (epa-file-run-real-handler #'file-local-copy (list file)))
(context (epg-make-context))
(if replace
(goto-char (point-min)))
(condition-case error
- (setq string (decode-coding-string
- (epg-decrypt-file context file nil)
- 'undecided))
+ (setq string (epg-decrypt-file context file nil))
(error
(if (setq entry (assoc file epa-file-passphrase-alist))
(setcdr entry nil))
(signal 'file-error
(cons "Opening input file" (cdr error)))))
+ (if (or beg end)
+ (setq string (substring string (or beg 0) end)))
+ (setq string
+ (decode-coding-string string
+ (or coding-system-for-read 'undecided)))
(if (boundp 'last-coding-system-used)
(set-buffer-file-coding-system last-coding-system-used)
(set-buffer-file-coding-system default-buffer-file-coding-system))
- (insert string)
- (setq length (length string))
- (if replace
- (delete-region (point) (point-max))))
+ (save-excursion
+ (insert string)
+ (setq length (length string))
+ (if replace
+ (delete-region (point) (point-max)))))
(if (and local-copy
(file-exists-p local-copy))
(delete-file local-copy)))
(if append
(error "Can't append to the file."))
(setq file (expand-file-name file))
- (let* ((coding-system (if (boundp 'last-coding-system-used)
- (condition-case nil
- (write-region (point-min) (point-max) "/")
- (error last-coding-system-used))
- buffer-file-coding-system))
+ (let* ((coding-system (or coding-system-for-write
+ (if (boundp 'last-coding-system-used)
+ (condition-case nil
+ (write-region (point-min) (point-max) "/")
+ (error last-coding-system-used))
+ buffer-file-coding-system)))
(context (epg-make-context))
(coding-system-for-write 'binary)
string entry)
(encode-coding-string (buffer-substring start end)
coding-system))
(unless (assoc file epa-file-passphrase-alist)
- (epa-select-keys
- context
- "Select recipents for encryption.
+ (epa-select-keys
+ context
+ "Select recipents for encryption.
If no one is selected, symmetric encryption will be performed. "))))
(error
(if (setq entry (assoc file epa-file-passphrase-alist))