-;;; mime-pgp.el --- mime-view internal methods for either PGP or GnuPG.
+;;; mime-pgp.el --- mime-view internal methods for PGP.
;; Copyright (C) 1995,1996,1997,1998,1999 MORIOKA Tomohiko
;; Author: MORIOKA Tomohiko <morioka@jaist.ac.jp>
-;; Katsumi Yamaoka <yamaoka@jpl.org>
;; Created: 1995/12/7
;; Renamed: 1997/2/27 from tm-pgp.el
-;; Keywords: PGP, GnuPG, security, MIME, multimedia, mail, news
+;; Keywords: PGP, security, MIME, multimedia, mail, news
;; This file is part of SEMI (Secure Emacs MIME Interface).
;; [security-multipart] RFC 1847: "Security Multiparts for MIME:
;; Multipart/Signed and Multipart/Encrypted" by
-;; Jim Galvin <galvin@tis.com>, Sandy Murphy <sandy@tis.com>,
+;; Jim Galvin <galvin@tis.com>, Sandy Murphy <sandy@tis.com>,
;; Steve Crocker <crocker@cybercash.com> and
-;; Ned Freed <ned@innosoft.com> (1995/10)
+;; 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)
;;;
;;; It is based on RFC 2015 (PGP/MIME).
-(defvar mime-pgp-default-scheme 'pgp
- "*Default encryption scheme to use. See also `mime-pgp-command-alist'
-for valid schemes.")
+(defvar mime-pgp-command "pgp"
+ "*Name of the PGP command.")
-(defvar mime-pgp-command-alist '((gpg . "gpg")
- (pgp50 . "pgp")
- (pgp . "pgp"))
- "*Alist of the corresponding schemes to the name of the commands.
-Each element looks like (SCHEME . COMMAND). Valid SCHEMEs are:
-
- gpg - GnuPG.
- pgp50 - PGP version 5.0i.
- pgp - PGP version 2.6.
-
-COMMAND for `pgp50' must *NOT* have a suffix, like neither \"pgpe\", \"pgpk\",
-\"pgps\" nor \"pgpv\".")
-
-(defvar mime-pgp-default-language-alist nil
- "*Alist of the corresponding schemes to the symbols of languages.
-It should be ISO 639 2 letter language code such as en, ja, ... Each
-element looks like (SCHEME . SYMBOL). Also see `mime-pgp-command-alist'
-for valid SCHEMEs.")
+(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
- '((gpg
- (nil "Good signature from.*$")
- )
- (pgp50
- (us "Good signature made .* by key:$"
- mime-pgp-good-signature-post-function-pgp50-us)
- )
- (pgp
- (en "Good signature from user.*$")
- ))
- "Alist of the scheme vs corresponding languages to regexps for detecting
-``Good signature''. The optional symbol of the post processing function
-for arranging the output message can be specified. It will be called just
-after re-search is done successfully, and it is expected that the function
-returns a string for messaging.")
+ '((en . "Good signature from user.*$"))
+ "Alist of language vs regexp to detect ``Good signature''.")
(defvar mime-pgp-key-expected-regexp-alist
- '((gpg
- (nil
- "key ID \\(\\S +\\)\ngpg: Can't check signature: public key not found")
- )
- (pgp50
- (us "Signature by unknown keyid: 0x\\(\\S +\\)")
- )
- (pgp
- (en "Key matching expected Key ID \\(\\S +\\) not found")
- ))
- "Alist of the scheme vs corresponding languages to regexps for detecting
-``Key expected''.")
-
-(defmacro mime-pgp-command (&optional suffix)
- "Return a suitable command. SUFFIX should be either \"e\", \"k\", \"s\"
-or \"v\" for choosing a command of PGP 5.0i."
- (` (let ((command (cdr (assq
- mime-pgp-default-scheme mime-pgp-command-alist))))
- (if (and command
- (progn
- (if (eq 'pgp50 mime-pgp-default-scheme)
- (setq command (concat command (, suffix))))
- (exec-installed-p command)))
- command
- (error "Please specify the valid command name for `%s'."
- (or mime-pgp-default-scheme 'mime-pgp-default-scheme))))))
-
-(defmacro mime-pgp-default-language ()
- "Return a symbol of language."
- '(cond ((eq 'gpg mime-pgp-default-scheme)
- nil)
- ((eq 'pgp50 mime-pgp-default-scheme)
- (or (cdr (assq mime-pgp-default-scheme
- mime-pgp-default-language-alist))
- 'us))
- (t
- (or (cdr (assq mime-pgp-default-scheme
- mime-pgp-default-language-alist))
- 'en))))
-
-(defmacro mime-pgp-good-signature-regexp ()
- "Return a regexp to detect ``Good signature''."
- '(nth 1
- (assq
- (mime-pgp-default-language)
- (cdr
- (assq
- mime-pgp-default-scheme mime-pgp-good-signature-regexp-alist)))))
-
-(defmacro mime-pgp-good-signature-post-function ()
- "Return a post processing function for arranging the message for
-``Good signature''."
- '(nth 2
- (assq
- (mime-pgp-default-language)
- (cdr
- (assq
- mime-pgp-default-scheme mime-pgp-good-signature-regexp-alist)))))
-
-(defmacro mime-pgp-key-expected-regexp ()
- "Return a regexp to detect ``Key expected''."
- '(nth 1
- (assq
- (mime-pgp-default-language)
- (cdr
- (assq
- mime-pgp-default-scheme 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 orig-file)
(save-excursion
(set-buffer output-buffer)
- (erase-buffer)
- (setq truncate-lines t))
- (let* ((lang (mime-pgp-default-language))
- (command (mime-pgp-command "v"))
- (args (cond ((eq 'gpg mime-pgp-default-scheme)
- (list "--verify" (concat orig-file ".sig"))
- )
- ((eq 'pgp50 mime-pgp-default-scheme)
- (list "+batchmode=1"
- (format "+language=%s" lang)
- (concat orig-file ".sig"))
- )
- ((eq 'pgp mime-pgp-default-scheme)
- (list (format "+language=%s" lang) orig-file))
- ))
- (regexp (mime-pgp-good-signature-regexp))
- (post-function (mime-pgp-good-signature-post-function))
- pgp-id)
- (if (zerop (apply 'call-process-region
- (point-min) (point-max) command nil output-buffer nil
- args))
+ (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
+ 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))
- (cond
- ((not (stringp regexp))
- (message "Please specify right regexp for specified language")
- )
- ((re-search-forward regexp nil t)
- (message (if post-function
- (funcall post-function)
- (buffer-substring (match-beginning 0) (match-end 0))))
- (goto-char (point-min))
- )
- ;; PGP 5.0i always returns 0, so we should attempt to fetch.
- ((eq 'pgp50 mime-pgp-default-scheme)
- (if (not (stringp (setq regexp (mime-pgp-key-expected-regexp))))
- (message "Please specify right regexp for specified language")
- (if (re-search-forward regexp nil t)
- (progn
- (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)
- )
- (message "Bad signature")
- ))
- (message "Bad signature")
- ))
- )
- (t
- (message "Bad signature")
- ))
- )
- (message "Bad signature")
- nil)))
+ (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")))
+ ))))
(defun mime-verify-application/pgp-signature (entity situation)
"Internal method to check PGP/MIME signature."
(mime-write-entity orig-entity orig-file)
(save-excursion (mime-show-echo-buffer))
(mime-write-entity-content entity sig-file)
- (if (mime-pgp-check-signature mime-echo-buffer-name orig-file)
- (let ((other-window-scroll-buffer mime-echo-buffer-name))
- (scroll-other-window
- (cdr (assq mime-pgp-default-scheme
- '((gpg . 5) (pgp50 . 1) (pgp . 10)))))
- )
- (if (eq 'pgp mime-pgp-default-scheme)
+ (or (mime-pgp-check-signature mime-echo-buffer-name orig-file)
+ (let (pgp-id)
(save-excursion
(set-buffer mime-echo-buffer-name)
(goto-char (point-min))
- (if (search-forward "\C-g" nil t)
- (goto-char (match-beginning 0))
- (forward-line 7))
- (set-window-start
- (get-buffer-window mime-echo-buffer-name)
- (point))
- )
- (let ((other-window-scroll-buffer mime-echo-buffer-name))
- (scroll-other-window
- (cdr (assq mime-pgp-default-scheme '((gpg . 5) (pgp50 . 1)))))
- ))
- (let (pgp-id)
- (save-excursion
- (set-buffer mime-echo-buffer-name)
- (goto-char (point-min))
- (let ((regexp (mime-pgp-key-expected-regexp)))
- (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
+ (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
- (prog1
- (y-or-n-p
- (format "Key %s not found; attempt to fetch? " pgp-id))
- (message ""))
- )
- (progn
- (funcall (pgp-function 'fetch-key) (cons nil pgp-id))
- (mime-pgp-check-signature mime-echo-buffer-name orig-file)
- )
- )))
+ ))))
+ (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)
))
-(defun mime-pgp-good-signature-post-function-pgp50-us ()
- (forward-line 2)
- (looking-at "\\s +\\(.+\\)$")
- (format "Good signature from %s" (match-string 1)))
-
;;; @ Internal method for application/pgp-encrypted
;;;
(kill-buffer (current-buffer))
))
-
-;;; @ Command.
-
-(defvar mime-pgp-setversion-hook nil
- "*Hook run after the value of `mime-pgp-default-scheme' has been changed.
-It is supposed to be used for working `mc-setversion' together with the
-command `mime-pgp-setversion'. For the purpose, it will be overridden by
-\"semi-setup\" in default.")
-
-(defun mime-pgp-setversion (&optional version)
- "Select PGP version or GnuPG."
- (interactive)
- (let ((table '(("GnuPG" . gpg) ("PGP 2.6" . pgp) ("PGP 5.0i" . pgp50)
- ("gnupg" . gpg) ("gpg" . gpg)
- ("pgp" . pgp) ("pgp2" . pgp) ("pgp2.6" . pgp)
- ("pgp5" . pgp50) ("pgp5.0" . pgp50) ("pgp50" . pgp50)
- ("2.6" . pgp) ("5.0" . pgp50)))
- (msg (interactive-p)))
- (if msg
- (setq version
- (completing-read
- (format "Select PGP version or GnuPG (currently %s): "
- (car (rassq mime-pgp-default-scheme table)))
- table nil t)
- ))
- (if (zerop (length version))
- (setq msg (and msg "PGP version is not modified."))
- (setq mime-pgp-default-scheme (cdr (assoc version table))
- msg (and msg (format "PGP version set to \"%s\"." version)))
- (run-hooks 'mime-pgp-setversion-hook)
- )
- (if msg (message "%s" msg))
- )
- mime-pgp-default-scheme)
-
-(mime-pgp-setversion
- (cdr (assq mime-pgp-default-scheme
- '((gpg . "GnuPG")
- (pgp50 . "PGP 5.0i")
- (pgp . "PGP 2.6"))
- )))
-
-
+
;;; @ end
;;;
projects / elisp / semi.git / blobdiff