;;; Commentary:
-;; This module is based on
-
-;; [security-multipart] RFC 1847: "Security Multiparts for MIME:
-;; Multipart/Signed and Multipart/Encrypted" by
-;; Jim Galvin <galvin@tis.com>, Sandy Murphy <sandy@tis.com>,
-;; Steve Crocker <crocker@cybercash.com> and
-;; Ned Freed <ned@innosoft.com> (1995/10)
-
-;; [PGP/MIME] RFC 2015: "MIME Security with Pretty Good Privacy
-;; (PGP)" by Michael Elkins <elkins@aero.org> (1996/6)
-
-;; [PGP-kazu] draft-kazu-pgp-mime-00.txt: "PGP MIME Integration"
-;; by Kazuhiko Yamamoto <kazu@is.aist-nara.ac.jp> (1995/10;
-;; expired)
-
-;; [OpenPGP/MIME] draft-ietf-openpgp-mime-02.txt: "MIME
-;; Security with OpenPGP" by
-;; John W. Noerenberg II <jwn2@qualcomm.com>,
-;; Dave Del Torto <ddt@cryptorights.org> and
-;; Michael Elkins <michael_elkins@nai.com> (2000/8)
-
;;; Code:
(require 'mime-play)
(require 'epa)
;;; @ Internal method for multipart/signed
-;;;
-;;; It is based on RFC 1847 (security-multipart).
(defun mime-verify-multipart/signed (entity situation)
"Internal method to verify multipart/signed."
))
-;;; @ internal method for application/pgp
-;;;
-;;; It is based on draft-kazu-pgp-mime-00.txt (PGP-kazu).
-
-(defun mime-view-application/pgp (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) "*"))
- representation-type message-buf context plain)
- (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-+$" nil t))
- (setq context (epg-make-context))
- (epg-verify-string
- context
- (buffer-substring (match-beginning 0)(point-max)))
- (goto-char (point-min))
- (delete-region
- (point-min)
- (and
- (re-search-forward "^-+BEGIN PGP SIGNED MESSAGE-+\n\n")
- (match-end 0)))
- (delete-region
- (and (re-search-forward "^-+BEGIN PGP SIGNATURE-+")
- (match-beginning 0))
- (point-max))
- (goto-char (point-min))
- (while (re-search-forward "^- -" nil t)
- (replace-match "-"))
- (setq representation-type (if (mime-entity-cooked-p entity)
- 'cooked)))
- ((progn
- (goto-char (point-min))
- (re-search-forward "^-+BEGIN PGP MESSAGE-+$" nil t))
- (setq context (epg-make-context))
- (setq plain
- (decode-coding-string
- (epg-decrypt-string
- context
- (buffer-substring (point-min)(point-max)))
- 'raw-text))
- (delete-region (point-min)(point-max))
- (insert plain)
- (setq representation-type 'binary)
- ))
- (setq major-mode 'mime-show-message-mode)
- (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)
- (if (and context
- (epg-context-result-for context 'verify))
- (epa-display-verify-result (epg-context-result-for context 'verify)))))
-
+;;; @ Internal method for application/*-signature
(defun mime-verify-application/*-signature (entity situation)
- (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)))
+ (let* ((mother (mime-entity-parent entity))
+ (orig-entity (car (mime-entity-children mother)))
(protocol (cdr (assoc "protocol" (mime-entity-parameters mother))))
(context (epg-make-context
(if (equal protocol "application/pgp-signature")
"\\`application/\\(x-\\)?pkcs7-signature\\'"
protocol)
'CMS
- (error "Unknown protocol: %s" protocol))))))
+ (error "Unknown protocol: %s" protocol)))))
+ verify-result)
(epg-verify-string context
(mime-entity-content entity)
(with-temp-buffer
(while (search-forward "\n" nil t)
(replace-match "\r\n"))
(buffer-substring (point-min) (point-max))))
- (if (epg-context-result-for context 'verify)
- (epa-display-verify-result (epg-context-result-for context 'verify)))))
+ (setq verify-result (epg-context-result-for context 'verify))
+ (if (> (length verify-result) 1)
+ (mime-show-echo-buffer (epg-verify-result-to-string verify-result))
+ (if verify-result
+ (epa-display-verify-result verify-result)))))
;;; @ Internal method for application/pgp-encrypted
-;;;
-;;; It is based on RFC 2015 (PGP/MIME) and
-;;; draft-ietf-openpgp-mime-02.txt (OpenPGP/MIME).
(defun mime-decrypt-application/pgp-encrypted (entity situation)
- (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))))
- (mime-view-application/pgp orig-entity situation)))
+ (let* ((mother (mime-entity-parent entity))
+ (encrypted-entity (nth 1 (mime-entity-children mother)))
+ (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) "*"))
+ representation-type message-buf context plain verify-result)
+ (set-buffer (setq message-buf (get-buffer-create new-name)))
+ (erase-buffer)
+ (mime-insert-entity encrypted-entity)
+ (goto-char (point-min))
+ (setq context (epg-make-context)
+ plain (decode-coding-string
+ (epg-decrypt-string
+ context
+ (buffer-substring (point-min)(point-max)))
+ 'raw-text))
+ (delete-region (point-min)(point-max))
+ (insert plain)
+ (setq representation-type 'binary
+ major-mode 'mime-show-message-mode)
+ (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)
+ (setq verify-result (epg-context-result-for context 'verify))
+ (if (> (length verify-result) 1)
+ (mime-show-echo-buffer (epg-verify-result-to-string verify-result))
+ (if verify-result
+ (epa-display-verify-result verify-result)))))
;;; @ Internal method for application/pgp-keys
-;;;
-;;; It is based on RFC 2015 (PGP/MIME) and
-;;; draft-ietf-openpgp-mime-02.txt (OpenPGP/MIME).
(defun mime-add-application/pgp-keys (entity situation)
(epg-import-keys-from-string (epg-make-context)
;;; @ 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))
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