;;; mime-pgp.el --- mime-view internal methods for PGP.
-;; Copyright (C) 1995,1996,1997,1998,1999 MORIOKA Tomohiko
+;; Copyright (C) 1995,1996,1997,1998,1999,2000 Free Software Foundation, Inc.
-;; Author: MORIOKA Tomohiko <morioka@jaist.ac.jp>
+;; Author: MORIOKA Tomohiko <tomo@m17n.org>
+;; Daiki Ueno <ueno@ueda.info.waseda.ac.jp>
;; Created: 1995/12/7
;; Renamed: 1997/2/27 from tm-pgp.el
;; Keywords: PGP, security, MIME, multimedia, mail, news
;; by Kazuhiko Yamamoto <kazu@is.aist-nara.ac.jp> (1995/10;
;; expired)
+;; [OpenPGP/MIME] draft-yamamoto-openpgp-mime-00.txt: "MIME
+;; Security with OpenPGP (OpenPGP/MIME)" by Kazuhiko YAMAMOTO
+;; <kazu@iijlab.net> (1998/1)
+
;;; Code:
(require 'mime-play)
+(require 'pgg-def)
+
+(autoload 'pgg-decrypt-region "pgg"
+ "PGP decryption of current region." t)
+(autoload 'pgg-verify-region "pgg"
+ "PGP verification of current region." t)
+(autoload 'pgg-snarf-keys-region "pgg"
+ "Snarf PGP public keys in current region." t)
+(autoload 'smime-decrypt-region "smime"
+ "S/MIME decryption of current region.")
+(autoload 'smime-verify-region "smime"
+ "S/MIME verification of current region.")
+(defvar smime-output-buffer)
+(defvar smime-errors-buffer)
;;; @ Internal method for multipart/signed
(new-name
(format "%s-%s" (buffer-name) (mime-entity-number entity)))
(mother (current-buffer))
- representation-type)
- (set-buffer (get-buffer-create new-name))
+ (preview-buffer (concat "*Preview-" (buffer-name) "*"))
+ representation-type message-buf)
+ (set-buffer (setq message-buf (get-buffer-create new-name)))
(erase-buffer)
(mime-insert-entity entity)
(cond ((progn
(goto-char (point-min))
(re-search-forward "^-+BEGIN PGP SIGNED MESSAGE-+$" nil t))
- (funcall (pgp-function 'verify))
+ (pgg-verify-region (match-beginning 0)(point-max) nil 'fetch)
(goto-char (point-min))
(delete-region
(point-min)
(point-max))
(goto-char (point-min))
(while (re-search-forward "^- -" nil t)
- (replace-match "-")
- )
+ (replace-match "-"))
(setq representation-type (if (mime-entity-cooked-p entity)
- 'cooked))
- )
+ 'cooked)))
((progn
(goto-char (point-min))
(re-search-forward "^-+BEGIN PGP MESSAGE-+$" nil t))
- (as-binary-process (funcall (pgp-function 'decrypt)))
- (goto-char (point-min))
- (delete-region (point-min)
- (and
- (search-forward "\n\n")
- (match-end 0)))
- (setq representation-type 'binary)
- ))
+ (pgg-decrypt-region (point-min)(point-max))
+ (delete-region (point-min)(point-max))
+ (insert-buffer pgg-output-buffer)
+ (setq representation-type 'binary)))
(setq major-mode 'mime-show-message-mode)
- (save-window-excursion (mime-view-buffer nil nil mother
- nil representation-type))
- (set-window-buffer p-win mime-preview-buffer)
- ))
+ (save-window-excursion
+ (mime-view-buffer nil preview-buffer mother
+ nil representation-type)
+ (make-local-variable 'mime-view-temp-message-buffer)
+ (setq mime-view-temp-message-buffer message-buf))
+ (set-window-buffer p-win preview-buffer)))
;;; @ Internal method for application/pgp-signature
;;;
-;;; It is based on RFC 2015 (PGP/MIME).
-
-(defvar mime-pgp-command "pgp"
- "*Name of the PGP command.")
-
-(defvar mime-pgp-default-language 'en
- "*Symbol of language for pgp.
-It should be ISO 639 2 letter language code such as en, ja, ...")
-
-(defvar mime-pgp-good-signature-regexp-alist
- '((en . "Good signature from user.*$"))
- "Alist of language vs regexp to detect ``Good signature''.")
-
-(defvar mime-pgp-key-expected-regexp-alist
- '((en . "Key matching expected Key ID \\(\\S +\\) not found"))
- "Alist of language vs regexp to detect ``Key expected''.")
-
-(defun mime-pgp-check-signature (output-buffer sig-file orig-file)
- (save-excursion
- (set-buffer output-buffer)
- (erase-buffer))
- (let* ((lang (or mime-pgp-default-language 'en))
- (status (call-process-region (point-min)(point-max)
- mime-pgp-command
- nil output-buffer nil
- sig-file orig-file (format "+language=%s" lang)))
- (regexp (cdr (assq lang mime-pgp-good-signature-regexp-alist))))
- (if (= status 0)
- (save-excursion
- (set-buffer output-buffer)
- (goto-char (point-min))
- (message
- (cond ((not (stringp regexp))
- "Please specify right regexp for specified language")
- ((re-search-forward regexp nil t)
- (buffer-substring (match-beginning 0) (match-end 0)))
- (t "Bad signature")))
- ))))
+;;; It is based on RFC 2015 (PGP/MIME) and
+;;; draft-yamamoto-openpgp-mime-00.txt (OpenPGP/MIME).
(defun mime-verify-application/pgp-signature (entity situation)
"Internal method to check PGP/MIME signature."
(1+ knum)))
(orig-entity (nth onum (mime-entity-children mother)))
(basename (expand-file-name "tm" temporary-file-directory))
- (orig-file (make-temp-name basename))
- (sig-file (concat orig-file ".sig"))
- )
- (mime-write-entity orig-entity orig-file)
- (save-excursion (mime-show-echo-buffer))
+ (sig-file (concat (make-temp-name basename) ".asc"))
+ status)
+ (save-excursion
+ (mime-show-echo-buffer)
+ (set-buffer mime-echo-buffer-name)
+ (set-window-start
+ (get-buffer-window mime-echo-buffer-name)
+ (point-max)))
(mime-write-entity-content entity sig-file)
- (or (mime-pgp-check-signature mime-echo-buffer-name sig-file orig-file)
- (let (pgp-id)
- (save-excursion
+ (unwind-protect
+ (with-temp-buffer
+ (mime-insert-entity orig-entity)
+ (goto-char (point-min))
+ (while (progn (end-of-line) (not (eobp)))
+ (insert "\r")
+ (forward-line 1))
+ (setq status (pgg-verify-region (point-min)(point-max)
+ sig-file 'fetch))
+ (save-excursion
(set-buffer mime-echo-buffer-name)
- (goto-char (point-min))
- (let ((regexp (cdr (assq (or mime-pgp-default-language 'en)
- mime-pgp-key-expected-regexp-alist))))
- (cond ((not (stringp regexp))
- (message
- "Please specify right regexp for specified language")
- )
- ((re-search-forward regexp nil t)
- (setq pgp-id
- (concat "0x" (buffer-substring-no-properties
- (match-beginning 1)
- (match-end 1))))
- ))))
- (if (and pgp-id
- (y-or-n-p
- (format "Key %s not found; attempt to fetch? " pgp-id))
- )
- (progn
- (funcall (pgp-function 'fetch-key) (cons nil pgp-id))
- (mime-pgp-check-signature mime-echo-buffer-name orig-file)
- ))
- ))
- (let ((other-window-scroll-buffer mime-echo-buffer-name))
- (scroll-other-window 8)
- )
- (delete-file orig-file)
- (delete-file sig-file)
- ))
+ (insert-buffer-substring (if status pgg-output-buffer
+ pgg-errors-buffer))))
+ (delete-file sig-file))))
;;; @ Internal method for application/pgp-encrypted
;;;
-;;; It is based on RFC 2015 (PGP/MIME).
+;;; It is based on RFC 2015 (PGP/MIME) and
+;;; draft-yamamoto-openpgp-mime-00.txt (OpenPGP/MIME).
(defun mime-decrypt-application/pgp-encrypted (entity situation)
(let* ((entity-node-id (mime-entity-node-id entity))
(1- knum)
(1+ knum)))
(orig-entity (nth onum (mime-entity-children mother))))
- (mime-view-application/pgp orig-entity situation)
- ))
+ (mime-view-application/pgp orig-entity situation)))
;;; @ Internal method for application/pgp-keys
;;;
-;;; It is based on RFC 2015 (PGP/MIME).
+;;; It is based on RFC 2015 (PGP/MIME) and
+;;; draft-yamamoto-openpgp-mime-00.txt (OpenPGP/MIME).
(defun mime-add-application/pgp-keys (entity situation)
- (let* ((start (mime-entity-point-min entity))
- (end (mime-entity-point-max entity))
- (entity-number (mime-entity-number entity))
- (new-name (format "%s-%s" (buffer-name) entity-number))
- (encoding (cdr (assq 'encoding situation)))
- str)
- (setq str (buffer-substring start end))
- (switch-to-buffer new-name)
- (setq buffer-read-only nil)
- (erase-buffer)
- (insert str)
- (goto-char (point-min))
- (if (re-search-forward "^\n" nil t)
- (delete-region (point-min) (match-end 0))
- )
- (mime-decode-region (point-min)(point-max) encoding)
- (funcall (pgp-function 'snarf-keys))
- (kill-buffer (current-buffer))
- ))
-
-
+ (save-excursion
+ (mime-show-echo-buffer)
+ (set-buffer mime-echo-buffer-name)
+ (set-window-start
+ (get-buffer-window mime-echo-buffer-name)
+ (point-max)))
+ (with-temp-buffer
+ (mime-insert-entity-content entity)
+ (mime-decode-region (point-min) (point-max)
+ (cdr (assq 'encoding situation)))
+ (let ((status (pgg-snarf-keys-region (point-min)(point-max))))
+ (save-excursion
+ (set-buffer mime-echo-buffer-name)
+ (insert-buffer-substring (if status pgg-output-buffer
+ pgg-errors-buffer))))))
+
+
+;;; @ Internal method for application/pkcs7-signature
+;;;
+;;; It is based on RFC 2633 (S/MIME version 3).
+
+(defun mime-verify-application/pkcs7-signature (entity situation)
+ "Internal method to check S/MIME signature."
+ (let* ((entity-node-id (mime-entity-node-id entity))
+ (mother (mime-entity-parent entity))
+ (knum (car entity-node-id))
+ (onum (if (> knum 0)
+ (1- knum)
+ (1+ knum)))
+ (orig-entity (nth onum (mime-entity-children mother)))
+ (basename (expand-file-name "tm" temporary-file-directory))
+ (sig-file (concat (make-temp-name basename) ".asc"))
+ status)
+ (save-excursion
+ (mime-show-echo-buffer)
+ (set-buffer mime-echo-buffer-name)
+ (set-window-start
+ (get-buffer-window mime-echo-buffer-name)
+ (point-max)))
+ (mime-write-entity entity sig-file)
+ (unwind-protect
+ (with-temp-buffer
+ (mime-insert-entity orig-entity)
+ (goto-char (point-min))
+ (while (progn (end-of-line) (not (eobp)))
+ (insert "\r")
+ (forward-line 1))
+ (setq status (smime-verify-region (point-min)(point-max)
+ sig-file))
+ (save-excursion
+ (set-buffer mime-echo-buffer-name)
+ (insert-buffer-substring (if status smime-output-buffer
+ smime-errors-buffer))))
+ (delete-file sig-file))))
+
+
+;;; @ Internal method for application/pkcs7-mime
+;;;
+;;; It is based on RFC 2633 (S/MIME version 3).
+
+(defun mime-view-application/pkcs7-mime (entity situation)
+ (let* ((p-win (or (get-buffer-window (current-buffer))
+ (get-largest-window)))
+ (new-name
+ (format "%s-%s" (buffer-name) (mime-entity-number entity)))
+ (mother (current-buffer))
+ (preview-buffer (concat "*Preview-" (buffer-name) "*"))
+ message-buf)
+ (when (memq (or (cdr (assq 'smime-type situation)) 'enveloped-data)
+ '(enveloped-data signed-data))
+ (set-buffer (setq message-buf (get-buffer-create new-name)))
+ (let ((inhibit-read-only t)
+ buffer-read-only)
+ (erase-buffer)
+ (mime-insert-entity entity)
+ (smime-decrypt-region (point-min)(point-max))
+ (delete-region (point-min)(point-max))
+ (insert-buffer smime-output-buffer))
+ (setq major-mode 'mime-show-message-mode)
+ (save-window-excursion
+ (mime-view-buffer nil preview-buffer mother
+ nil 'binary)
+ (make-local-variable 'mime-view-temp-message-buffer)
+ (setq mime-view-temp-message-buffer message-buf))
+ (set-window-buffer p-win preview-buffer))))
+
+
;;; @ end
;;;
projects / elisp / semi.git / blobdiff