;;; mm-encode.el --- Functions for encoding MIME things
-;; Copyright (C) 1998, 1999, 2000, 2001, 2002, 2003, 2004,
-;; 2005, 2006, 2007, 2008, 2009 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>
(eval-when-compile (require 'cl))
(require 'mail-parse)
-(require 'mailcap)
+(autoload 'mailcap-extension-to-mime "mailcap")
(autoload 'mm-body-7-or-8 "mm-bodies")
(autoload 'mm-long-lines-p "mm-bodies")
If the encoding is `qp-or-base64', then either quoted-printable
or base64 will be used, depending on what is more efficient.
-`qp-or-base64' has another effect. It will fold long lines so that
-MIME parts may not be broken by MTA. So do `quoted-printable' and
-`base64'.
-
-Note: It affects body encoding only when a part is a raw forwarded
-message (which will be made by `gnus-summary-mail-forward' with the
-arg 2 for example) or is neither the text/* type nor the message/*
-type. Even though in those cases, you can use the `encoding' MML tag
-to specify encoding of non-ASCII MIME parts."
+This list is only consulted when encoding MIME parts in the
+bodies -- not for the regular non-MIME-ish messages."
:type '(repeat (list (regexp :tag "MIME type")
(choice :tag "encoding"
(const 7bit)
(const base64))))
:group 'mime)
+(defcustom mm-sign-option nil
+ "Option how to create signed parts.
+nil, use the default keys without asking;
+`guided', let you select signing keys from the menu."
+ :version "23.2" ;; No Gnus 0.12
+ :type '(choice (item guided)
+ (item :tag "default" nil))
+ :group 'mime-security)
+
+(defcustom mm-encrypt-option nil
+ "Option how to create encrypted parts.
+nil, use the default keys without asking;
+`guided', let you select recipients' keys from the menu."
+ :version "23.2" ;; No Gnus 0.12
+ :type '(choice (item guided)
+ (item :tag "default" nil))
+ :group 'mime-security)
+
(defvar mm-use-ultra-safe-encoding nil
"If non-nil, use encodings aimed at Procrustean bed survival.
(t
(error "Unknown encoding %s" encoding))))
-(defun mm-encode-buffer (type)
- "Encode the buffer which contains data of MIME type TYPE.
+(defun mm-encode-buffer (type &optional encoding)
+ "Encode the buffer which contains data of MIME type TYPE by ENCODING.
TYPE is a string or a list of the components.
+The optional ENCODING overrides the encoding determined according to
+TYPE and `mm-content-transfer-encoding-defaults'.
The encoding used is returned."
- (let* ((mime-type (if (stringp type) type (car type)))
- (encoding
- (or (and (listp type)
- (cadr (assq 'encoding type)))
- (mm-content-transfer-encoding mime-type)))
- (bits (mm-body-7-or-8)))
- ;; We force buffers that are 7bit to be unencoded, no matter
- ;; what the preferred encoding is.
- ;; Only if the buffers don't contain lone lines.
- (when (and (eq bits '7bit) (not (mm-long-lines-p 76)))
- (setq encoding bits))
- (mm-encode-content-transfer-encoding encoding mime-type)
+ (let ((mime-type (if (stringp type) type (car type))))
+ (mm-encode-content-transfer-encoding
+ (or encoding
+ (setq encoding (or (and (listp type)
+ (cadr (assq 'encoding type)))
+ (mm-content-transfer-encoding mime-type))))
+ mime-type)
encoding))
(defun mm-insert-headers (type encoding &optional file)
(provide 'mm-encode)
-;; arch-tag: 7d01bba4-d469-4851-952b-dc863f84ed66
;;; mm-encode.el ends here