;;; mm-bodies.el --- Functions for decoding MIME things
-;; Copyright (C) 1998, 1999, 2000, 2001
-;; Free Software Foundation, Inc.
+;; Copyright (C) 1998-2011 Free Software Foundation, Inc.
;; Author: Lars Magne Ingebrigtsen <larsi@gnus.org>
;; MORIOKA Tomohiko <morioka@jaist.ac.jp>
;; This file is part of GNU Emacs.
-;; GNU Emacs is free software; you can redistribute it and/or modify
+;; GNU Emacs 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.
+;; the Free Software Foundation, either version 3 of the License, or
+;; (at your option) any later version.
;; GNU Emacs 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
+;; 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., 59 Temple Place - Suite 330,
-;; Boston, MA 02111-1307, USA.
+;; along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>.
;;; Commentary:
;;; Code:
+;; For Emacs <22.2 and XEmacs.
(eval-and-compile
- (or (fboundp 'base64-decode-region)
- (require 'base64)))
-
-(eval-when-compile
- (defvar mm-uu-decode-function)
- (defvar mm-uu-binhex-decode-function))
+ (unless (fboundp 'declare-function) (defmacro declare-function (&rest r))))
(require 'mm-util)
(require 'rfc2047)
(require 'mm-encode)
-;; 8bit treatment gets any char except: 0x32 - 0x7f, CR, LF, TAB, BEL,
+(defvar mm-uu-yenc-decode-function)
+(defvar mm-uu-decode-function)
+(defvar mm-uu-binhex-decode-function)
+
+;; 8bit treatment gets any char except: 0x32 - 0x7f, LF, TAB, BEL,
;; BS, vertical TAB, form feed, and ^_
-(defvar mm-7bit-chars "\x20-\x7f\r\n\t\x7\x8\xb\xc\x1f")
+;;
+;; Note that CR is *not* included, as that would allow a non-paired CR
+;; in the body contrary to RFC 2822:
+;;
+;; - CR and LF MUST only occur together as CRLF; they MUST NOT
+;; appear independently in the body.
+
+(defvar mm-7bit-chars "\x20-\x7f\n\t\x7\x8\xb\xc\x1f")
(defcustom mm-body-charset-encoding-alist
'((iso-2022-jp . 7bit)
- (iso-2022-jp-2 . 7bit))
+ (iso-2022-jp-2 . 7bit)
+ ;; We MUST encode UTF-16 because it can contain \0's which is
+ ;; known to break servers.
+ ;; Note: UTF-16 variants are invalid for text parts [RFC 2781],
+ ;; so this can't happen :-/.
+ ;; PPS: Yes, it can happen if the user specifies UTF-16 in the MML
+ ;; markup. - jh.
+ (utf-16 . base64)
+ (utf-16be . base64)
+ (utf-16le . base64))
"Alist of MIME charsets to encodings.
Valid encodings are `7bit', `8bit', `quoted-printable' and `base64'."
:type '(repeat (cons (symbol :tag "charset")
(const base64))))
:group 'mime)
+(autoload 'message-options-get "message")
+(declare-function message-options-set "message" (symbol value))
+
(defun mm-encode-body (&optional charset)
"Encode a body.
Should be called narrowed to the body that is to be encoded.
-If there is more than one non-ASCII MULE charset, then list of found
-MULE charsets are returned.
-If CHARSET is non-nil, it is used.
+If there is more than one non-ASCII MULE charset in the body, then the
+list of MULE charsets found is returned.
+If CHARSET is non-nil, it is used as the MIME charset to encode the body.
If successful, the MIME charset is returned.
If no encoding was done, nil is returned."
(if (not (mm-multibyte-p))
(message-options-get 'mm-encody-body-charset)
(message-options-set
'mm-encody-body-charset
- (mm-read-charset "Charset used in the article: ")))
+ (mm-read-coding-system "Charset used in the article: ")))
;; The logic in `mml-generate-mime-1' confirms that it's OK
;; to return nil here.
nil)))
(save-excursion
(if charset
projects / gnus / blobdiff