+;;; pgg-epg.el --- Gnus/PGG backend of EasyPG.
+;; Copyright (C) 1999, 2000, 2002, 2003, 2004,
+;; 2005, 2006 Free Software Foundation, Inc.
+;; Copyright (C) 2006 Daiki Ueno
+
+;; Author: Daiki Ueno <ueno@unixuser.org>
+;; 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.
+
+;;; Code:
+
(require 'epg)
(eval-when-compile (require 'pgg))
+(defvar pgg-epg-secret-key-id-list nil)
+
+(defun pgg-epg-passphrase-callback (key-id ignore)
+ (if (eq key-id 'SYM)
+ (epg-passphrase-callback-function key-id nil)
+ (let* ((entry (assoc key-id epg-user-id-alist))
+ (passphrase
+ (pgg-read-passphrase
+ (format "GnuPG passphrase for %s: "
+ (if entry
+ (cdr entry)
+ key-id))
+ (if (eq key-id 'PIN)
+ "PIN"
+ key-id))))
+ (when passphrase
+ (pgg-add-passphrase-to-cache key-id passphrase)
+ (setq pgg-epg-secret-key-id-list
+ (cons key-id pgg-epg-secret-key-id-list))
+ (copy-sequence passphrase)))))
+
(defun pgg-epg-encrypt-region (start end recipients &optional sign passphrase)
"This function is for internal use only.
cipher)
(epg-context-set-armor context t)
(epg-context-set-textmode context pgg-text-mode)
- (setq cipher (epg-encrypt-string context (buffer-substring start end)
- (if pgg-encrypt-for-me
- (cons pgg-default-user-id recipients)
- recipients)
- sign t))
+ (epg-context-set-passphrase-callback context #'pgg-epg-passphrase-callback)
+ (condition-case error
+ (setq cipher
+ (epg-encrypt-string context
+ (buffer-substring start end)
+ (mapcar
+ (lambda (recipient)
+ (car (epg-list-keys recipient)))
+ (if pgg-encrypt-for-me
+ (cons pgg-default-user-id recipients)
+ recipients))
+ sign t)
+ pgg-epg-secret-key-id-list nil)
+ (error
+ (while pgg-epg-secret-key-id-list
+ (pgg-remove-passphrase-from-cache (car pgg-epg-secret-key-id-list))
+ (setq pgg-epg-secret-key-id-list (cdr pgg-epg-secret-key-id-list)))
+ (signal (car error) (cdr error))))
(save-excursion
(set-buffer (get-buffer-create pgg-output-buffer))
(erase-buffer)
plain)
(epg-context-set-armor context t)
(epg-context-set-textmode context pgg-text-mode)
- (setq plain (epg-decrypt-string context (buffer-substring start end)))
+ (epg-context-set-passphrase-callback context #'pgg-epg-passphrase-callback)
+ (condition-case error
+ (setq plain (epg-decrypt-string context (buffer-substring start end))
+ pgg-epg-secret-key-id-list nil)
+ (error
+ (while pgg-epg-secret-key-id-list
+ (pgg-remove-passphrase-from-cache (car pgg-epg-secret-key-id-list))
+ (setq pgg-epg-secret-key-id-list (cdr pgg-epg-secret-key-id-list)))
+ (signal (car error) (cdr error))))
(save-excursion
(set-buffer (get-buffer-create pgg-output-buffer))
(erase-buffer)
signature)
(epg-context-set-armor context t)
(epg-context-set-textmode context pgg-text-mode)
- (setq signature (epg-sign-string context (buffer-substring start end)
- (if cleartext
- 'cleartext
- 'detached)))
+ (epg-context-set-passphrase-callback context #'pgg-epg-passphrase-callback)
+ (condition-case error
+ (setq signature
+ (epg-sign-string context
+ (buffer-substring start end)
+ (if cleartext
+ 'clearsign
+ 'detached))
+ pgg-epg-secret-key-id-list nil)
+ (error
+ (while pgg-epg-secret-key-id-list
+ (pgg-remove-passphrase-from-cache (car pgg-epg-secret-key-id-list))
+ (setq pgg-epg-secret-key-id-list (cdr pgg-epg-secret-key-id-list)))
+ (signal (car error) (cdr error))))
(save-excursion
(set-buffer (get-buffer-create pgg-output-buffer))
+ (erase-buffer)
(insert signature))
t))
-(defvar pgg-epg-signature nil)
+(defvar pgg-epg-signatures nil)
(defun pgg-epg-verify-region (start end &optional signature)
"This function is for internal use only.
Verify region between START and END as the detached signature SIGNATURE."
- (let ((context (epg-make-context))
- pointer)
+ (let ((context (epg-make-context)))
(epg-context-set-armor context t)
(epg-context-set-textmode context pgg-text-mode)
(if signature
- (epg-verify-file context signature (buffer-substring start end))
+ (epg-verify-string context
+ (with-temp-buffer
+ (insert-file-contents signature)
+ (buffer-string))
+ (buffer-substring start end))
(epg-verify-string context (buffer-substring start end)))
- (setq signature (reverse (epg-context-result-for context 'verify))
- pointer signature)
(save-excursion
(set-buffer (get-buffer-create pgg-errors-buffer))
- (make-local-variable 'pgg-epg-signature)
- (setq pgg-epg-signature (car signature))
+ (make-local-variable 'pgg-epg-signatures)
+ (setq pgg-epg-signatures (epg-context-result-for context 'verify))
(erase-buffer)
- (while pointer
- (insert (format "%s: %s %s %s\n"
- (epg-signature-status (car pointer))
- (epg-signature-key-id (car pointer))
- (epg-signature-user-id (car pointer))
- (epg-signature-validity (car pointer))))
- (setq pointer (cdr pointer))))
- signature))
+ (insert (epg-verify-result-to-string pgg-epg-signatures)))
+ t))
(defun pgg-epg-insert-key ()
"This function is for internal use only.
(epg-import-keys context (buffer-substring start end))))
(defun mml2015-gpg-extract-signature-details ()
- (if pgg-epg-signature
- (let* ((expired (eq (epg-signature-status pgg-epg-signature)
+ (if pgg-epg-signatures
+ (let* ((expired (eq (epg-signature-status (car pgg-epg-signatures))
'key-expired))
- (signer (cons (epg-signature-key-id pgg-epg-signature)
- (epg-signature-user-id pgg-epg-signature)))
- (fprint (epg-signature-fingerprint pgg-epg-signature))
+ (signer (cons (epg-signature-key-id (car pgg-epg-signatures))
+ (epg-signature-user-id (car pgg-epg-signatures))))
+ (fprint (epg-signature-fingerprint (car pgg-epg-signatures)))
(trust-good-enough-p
- (memq (epg-signature-validity pgg-epg-signature)
+ (memq (epg-signature-validity (car pgg-epg-signatures))
'(marginal fully ultimate))))
(cond ((and signer fprint)
(concat (cdr signer)
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