;;; mm-bodies.el --- Functions for decoding MIME things
-;; Copyright (C) 1998, 1999, 2000, 2001, 2003
-;; 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)
;; 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))
(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.
(save-excursion
(if charset
(progn
- (mm-encode-coding-region (point-min) (point-max) charset)
+ (mm-encode-coding-region (point-min) (point-max)
+ (mm-charset-to-coding-system charset))
charset)
(goto-char (point-min))
(let ((charsets (mm-find-mime-charset-region (point-min) (point-max)
(cond
((and (not longp)
(not (and mm-use-ultra-safe-encoding
- (save-excursion (re-search-forward "^From " nil t))))
+ (or (save-excursion (re-search-forward " $" nil t))
+ (save-excursion (re-search-forward "^From " nil t)))))
(eq bits '7bit))
bits)
((and (not mm-use-ultra-safe-encoding)
;;; Functions for decoding
;;;
-(eval-when-compile (defvar mm-uu-yenc-decode-function))
-
(defun mm-decode-content-transfer-encoding (encoding &optional type)
"Decodes buffer encoded with ENCODING, returning success status.
If TYPE is `text/plain' CRLF->LF translation may occur."
(while (re-search-forward "^[\t ]*\r?\n" nil t)
(delete-region (match-beginning 0) (match-end 0)))
(goto-char (point-max))
- (when (re-search-backward "^[A-Za-z0-9+/]+=*[\t ]*$" nil t)
+ (when (re-search-backward "^[\t ]*[A-Za-z0-9+/]+=*[\t ]*$"
+ nil t)
(forward-line))
(point))))
- ((memq encoding '(7bit 8bit binary))
- ;; Do nothing.
- t)
- ((null encoding)
+ ((memq encoding '(nil 7bit 8bit binary))
;; Do nothing.
t)
((memq encoding '(x-uuencode x-uue))
(message "Error while decoding: %s" error)
nil))
(when (and
+ type
(memq encoding '(base64 x-uuencode x-uue x-binhex x-yenc))
- (equal type "text/plain"))
+ (string-match "\\`text/" type))
(goto-char (point-min))
(while (search-forward "\r\n" nil t)
(replace-match "\n" t t)))))
(save-excursion
(when encoding
(mm-decode-content-transfer-encoding encoding type))
- (when (featurep 'mule) ; Fixme: Wrong test for unibyte session.
- (let ((coding-system (mm-charset-to-coding-system charset)))
+ (when (and (featurep 'mule) ;; Fixme: Wrong test for unibyte session.
+ (not (eq charset 'gnus-decoded)))
+ (let ((coding-system (mm-charset-to-coding-system
+ ;; Allow overwrite using
+ ;; `mm-charset-override-alist'.
+ charset nil t)))
(if (and (not coding-system)
(listp mail-parse-ignored-charsets)
(memq 'gnus-unknown mail-parse-ignored-charsets))
;;in XEmacs
(mm-multibyte-p)
(or (not (eq coding-system 'ascii))
- (setq coding-system mail-parse-charset))
- (not (eq coding-system 'gnus-decoded)))
+ (setq coding-system mail-parse-charset)))
(mm-decode-coding-region (point-min) (point-max)
coding-system))
(setq buffer-file-coding-system
(setq charset mail-parse-charset))
(or
(when (featurep 'mule)
- (let ((coding-system (mm-charset-to-coding-system charset)))
+ (let ((coding-system (mm-charset-to-coding-system
+ charset
+ ;; Allow overwrite using
+ ;; `mm-charset-override-alist'.
+ nil t)))
(if (and (not coding-system)
(listp mail-parse-ignored-charsets)
(memq 'gnus-unknown mail-parse-ignored-charsets))