;;; mml2015.el --- MIME Security with Pretty Good Privacy (PGP)
-;; Copyright (C) 2000-2013 Free Software Foundation, Inc.
+;; Copyright (C) 2000-2014 Free Software Foundation, Inc.
;; Author: Shenghuo Zhu <zsh@cs.rochester.edu>
;; Keywords: PGP MIME MML
;;; Code:
(eval-and-compile
- ;; For Emacs <22.2 and XEmacs.
- (unless (fboundp 'declare-function) (defmacro declare-function (&rest r)))
-
(if (locate-library "password-cache")
(require 'password-cache)
(require 'password)))
(config &optional minimum-version))
(declare-function epg-configuration "ext:epg-config" ())
+;; Maybe this should be in eg mml-sec.el (and have a different name).
+;; Then mml1991 would not need to require mml2015, and mml1991-use
+;; could be removed.
(defvar mml2015-use (or
(condition-case nil
(progn
:group 'mime-security
:type 'boolean)
+(defcustom mml2015-maximum-key-image-dimension 64
+ "The maximum dimension (width or height) of any key images."
+ :version "24.4"
+ :group 'mime-security
+ :type 'integer)
+
;; Extract plaintext from cleartext signature. IMO, this kind of task
;; should be done by GnuPG rather than Elisp, but older PGP backends
;; (such as Mailcrypt, and PGG) discard the output from GnuPG.
(setq secret-keys (cdr secret-keys))))
secret-key))
+(autoload 'gnus-create-image "gnus-ems")
+
(defun mml2015-epg-key-image (key-id)
"Return the image of a key, if any"
(with-temp-buffer
(shell-quote-argument epg-gpg-program) key-id))))
(when (> (length data) 0)
(insert (substring data 16))
- (create-image (buffer-string) nil t)))))
+ (condition-case nil
+ (gnus-create-image (buffer-string) nil t)
+ (error))))))
+
+(autoload 'gnus-rescale-image "gnus-util")
(defun mml2015-epg-key-image-to-string (key-id)
"Return a string with the image of a key, if any"
- (let* ((result "")
- (key-image (mml2015-epg-key-image key-id)))
- (when key-image
- (setq result " ")
- (put-text-property 1 2 'display key-image result))
- result))
+ (let ((key-image (mml2015-epg-key-image key-id)))
+ (if (not key-image)
+ ""
+ (condition-case error
+ (let ((result " "))
+ (put-text-property
+ 1 2 'display
+ (gnus-rescale-image key-image
+ (cons mml2015-maximum-key-image-dimension
+ mml2015-maximum-key-image-dimension))
+ result)
+ result)
+ (error "")))))
(defun mml2015-epg-signature-to-string (signature)
(concat (epg-signature-to-string signature)
(epg-context-set-passphrase-callback
context
#'mml2015-epg-passphrase-callback))
+ ;; Signed data must end with a newline (RFC 3156, 5).
+ (goto-char (point-max))
+ (unless (bolp)
+ (insert "\n"))
(condition-case error
(setq signature (epg-sign-string context (buffer-string) t)
mml2015-epg-secret-key-id-list nil)