;;; mm-decode.el --- Functions for decoding MIME things
-;; Copyright (C) 1998, 1999, 2000, 2001, 2002, 2003, 2004
+;; Copyright (C) 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005
;; Free Software Foundation, Inc.
;; Author: Lars Magne Ingebrigtsen <larsi@gnus.org>
(require 'term))
(eval-and-compile
- (autoload 'executable-find "executable")
(autoload 'mm-inline-partial "mm-partial")
(autoload 'mm-inline-external-body "mm-extern")
(autoload 'mm-insert-inline "mm-view"))
(defgroup mime-display ()
"Display of MIME in mail and news articles."
- :link '(custom-manual "(emacs-mime)Customization")
+ :link '(custom-manual "(emacs-mime)Display Customization")
:version "21.1"
:group 'mail
:group 'news
(defgroup mime-security ()
"MIME security in mail and news articles."
- :link '(custom-manual "(emacs-mime)Customization")
+ :link '(custom-manual "(emacs-mime)Display Customization")
:group 'mail
:group 'news
:group 'multimedia)
(defcustom mm-text-html-renderer
(cond ((locate-library "w3") 'w3)
- ((locate-library "w3m") 'w3m)
- ((executable-find "w3m") 'w3m-standalone)
+ ((executable-find "w3m") (if (locate-library "w3m")
+ 'w3m
+ 'w3m-standalone))
((executable-find "links") 'links)
((executable-find "lynx") 'lynx)
(t 'html2text))
`lynx' : use lynx;
`html2text' : use html2text;
nil : use external viewer."
+ :version "22.1"
:type '(choice (const w3)
(const w3m)
(const w3m-standalone)
(const html2text)
(const nil)
(function))
- :version "21.3"
:group 'mime-display)
(defvar mm-inline-text-html-renderer nil
"If non-nil, Gnus will allow retrieving images in HTML contents with
the <img> tags. It has no effect on Emacs/w3. See also the
documentation for the `mm-w3m-safe-url-regexp' variable."
+ :version "22.1"
:type 'boolean
:group 'mime-display)
matches parts embedded to the Multipart/Related type MIME contents and
Gnus will never connect to the spammer's site arbitrarily. You may
set this variable to nil if you consider all urls to be safe."
+ :version "22.1"
:type '(choice (regexp :tag "Regexp")
(const :tag "All URLs are safe" nil))
:group 'mime-display)
(defcustom mm-inline-text-html-with-w3m-keymap t
"If non-nil, use emacs-w3m command keys in the article buffer."
+ :version "22.1"
:type 'boolean
:group 'mime-display)
If t, all defined external MIME handlers are used. If nil, files are saved by
`mailcap-save-binary-file'. If it is the symbol `ask', you are prompted
before the external MIME handler is invoked."
- :version "21.4"
+ :version "22.1"
:type '(choice (const :tag "Always" t)
(const :tag "Never" nil)
(const :tag "Ask" ask))
(locate-library "diff-mode")))
("application/emacs-lisp" mm-display-elisp-inline identity)
("application/x-emacs-lisp" mm-display-elisp-inline identity)
+ ("text/dns" mm-display-dns-inline identity)
("text/html"
mm-inline-text-html
(lambda (handle)
"application/pdf" "application/x-dvi")
"List of media types for which the external viewer will not be killed
when selecting a different article."
+ :version "22.1"
:type '(repeat string)
:group 'mime-display)
(defcustom mm-automatic-display
'("text/plain" "text/enriched" "text/richtext" "text/html"
"text/x-vcard" "image/.*" "message/delivery-status" "multipart/.*"
- "message/rfc822" "text/x-patch" "application/pgp-signature"
+ "message/rfc822" "text/x-patch" "text/dns" "application/pgp-signature"
"application/emacs-lisp" "application/x-emacs-lisp"
"application/x-pkcs7-signature"
"application/pkcs7-signature" "application/x-pkcs7-mime"
(defcustom mm-attachment-file-modes 384
"Set the mode bits of saved attachments to this integer."
+ :version "22.1"
:type 'integer
:group 'mime-display)
(defcustom mm-external-terminal-program "xterm"
"The program to start an external terminal."
+ :version "22.1"
:type 'string
:group 'mime-display)
"Option of verifying signed parts.
`never', not verify; `always', always verify;
`known', only verify known protocols. Otherwise, ask user."
+ :version "22.1"
:type '(choice (item always)
(item never)
(item :tag "only known protocols" known)
"Option of decrypting encrypted parts.
`never', not decrypt; `always', always decrypt;
`known', only decrypt known protocols. Otherwise, ask user."
+ :version "22.1"
:type '(choice (item always)
(item never)
(item :tag "only known protocols" known)
(message "Destroying external MIME viewers")
(mm-destroy-parts mm-postponed-undisplay-list)))
-(defun mm-dissect-buffer (&optional no-strict-mime loose-mime)
+(defun mm-dissect-buffer (&optional no-strict-mime loose-mime from)
"Dissect the current buffer and return a list of MIME handles."
(save-excursion
- (let (ct ctl type subtype cte cd description id result from)
+ (let (ct ctl type subtype cte cd description id result)
(save-restriction
(mail-narrow-to-head)
(when (or no-strict-mime
cte (mail-fetch-field "content-transfer-encoding")
cd (mail-fetch-field "content-disposition")
description (mail-fetch-field "content-description")
- from (mail-fetch-field "from")
id (mail-fetch-field "content-id"))
+ (unless from
+ (setq from (mail-fetch-field "from")))
;; FIXME: In some circumstances, this code is running within
;; an unibyte macro. mail-extract-address-components
;; creates unibyte buffers. This `if', though not a perfect
;; solution, avoids most of them.
(if from
(setq from (cadr (mail-extract-address-components from))))))
- (when cte
- (setq cte (mail-header-strip cte)))
(if (or (not ctl)
(not (string-match "/" (car ctl))))
(mm-dissect-singlepart
(list mm-dissect-default-type)
- (and cte (intern (downcase (mail-header-remove-whitespace
- (mail-header-remove-comments
- cte)))))
+ (and cte (intern (downcase (mail-header-strip cte))))
no-strict-mime
(and cd (ignore-errors (mail-header-parse-content-disposition cd)))
description)
'from from
'start start)
(car ctl))
- (cons (car ctl) (mm-dissect-multipart ctl))))
+ (cons (car ctl) (mm-dissect-multipart ctl from))))
(t
(mm-possibly-verify-or-decrypt
(mm-dissect-singlepart
ctl
- (and cte (intern (downcase (mail-header-remove-whitespace
- (mail-header-remove-comments
- cte)))))
+ (and cte (intern (downcase (mail-header-strip cte))))
no-strict-mime
(and cd (ignore-errors
(mail-header-parse-content-disposition cd)))
(mm-make-handle
(mm-copy-to-buffer) ctl cte nil cdl description nil id)))
-(defun mm-dissect-multipart (ctl)
+(defun mm-dissect-multipart (ctl from)
(goto-char (point-min))
(let* ((boundary (concat "\n--" (mail-content-type-get ctl 'boundary)))
(close-delimiter (concat (regexp-quote boundary) "--[ \t]*$"))
(save-excursion
(save-restriction
(narrow-to-region start (point))
- (setq parts (nconc (list (mm-dissect-buffer t)) parts)))))
+ (setq parts (nconc (list (mm-dissect-buffer t nil from)) parts)))))
(end-of-line 2)
(or (looking-at boundary)
(forward-line 1))
(save-excursion
(save-restriction
(narrow-to-region start end)
- (setq parts (nconc (list (mm-dissect-buffer t)) parts)))))
+ (setq parts (nconc (list (mm-dissect-buffer t nil from)) parts)))))
(mm-possibly-verify-or-decrypt (nreverse parts) ctl)))
(defun mm-copy-to-buffer ()
"Copy the contents of the current buffer to a fresh buffer."
(save-excursion
- (let ((flag enable-multibyte-characters)
- (new-buffer (generate-new-buffer " *mm*")))
+ (let ((obuf (current-buffer))
+ beg)
(goto-char (point-min))
(search-forward-regexp "^\n" nil t)
- (save-restriction
- (narrow-to-region (point) (point-max))
- (when flag
- (set-buffer-multibyte nil))
- (copy-to-buffer new-buffer (point-min) (point-max))
- (when flag
- (set-buffer-multibyte t)))
- new-buffer)))
+ (setq beg (point))
+ (set-buffer
+ ;; Preserve the data's unibyteness (for url-insert-file-contents).
+ (let ((default-enable-multibyte-characters (mm-multibyte-p)))
+ (generate-new-buffer " *mm*")))
+ (insert-buffer-substring obuf beg)
+ (current-buffer))))
(defun mm-display-parts (handle &optional no-default)
(if (stringp (car handle))
(string= total "'%s'")
(string= total "\"%s\""))
(setq uses-stdin nil)
- (push (mm-quote-arg
+ (push (shell-quote-argument
(gnus-map-function mm-path-name-rewrite-functions file)) out))
((string= total "%t")
- (push (mm-quote-arg (car type-list)) out))
+ (push (shell-quote-argument (car type-list)) out))
(t
- (push (mm-quote-arg (or (cdr (assq (intern sub) ctl)) "")) out))))
+ (push (shell-quote-argument (or (cdr (assq (intern sub) ctl)) "")) out))))
(push (substring method beg (length method)) out)
(when uses-stdin
(push "<" out)
- (push (mm-quote-arg
+ (push (shell-quote-argument
(gnus-map-function mm-path-name-rewrite-functions file))
out))
(mapconcat 'identity (nreverse out) "")))
(defun mm-insert-part (handle)
"Insert the contents of HANDLE in the current buffer."
- (let ((cur (current-buffer)))
- (save-excursion
- (if (member (mm-handle-media-supertype handle) '("text" "message"))
- (with-temp-buffer
- (insert-buffer-substring (mm-handle-buffer handle))
- (prog1
- (mm-decode-content-transfer-encoding
- (mm-handle-encoding handle)
- (mm-handle-media-type handle))
- (let ((temp (current-buffer)))
- (set-buffer cur)
- (insert-buffer-substring temp))))
- (mm-with-unibyte-buffer
- (insert-buffer-substring (mm-handle-buffer handle))
- (prog1
- (mm-decode-content-transfer-encoding
- (mm-handle-encoding handle)
- (mm-handle-media-type handle))
- (let ((temp (current-buffer)))
- (set-buffer cur)
- (insert-buffer-substring temp))))))))
+ (save-excursion
+ (insert (if (mm-multibyte-p)
+ (mm-string-as-multibyte (mm-get-part handle))
+ (mm-get-part handle)))))
(defun mm-file-name-delete-whitespace (file-name)
"Remove all whitespace characters from FILE-NAME."
(setq filename (gnus-map-function mm-file-name-rewrite-functions
(file-name-nondirectory filename))))
(setq file
- (read-file-name "Save MIME part to: "
- (or mm-default-directory default-directory)
- nil nil (or filename name "")))
+ (mm-with-multibyte
+ (read-file-name "Save MIME part to: "
+ (or mm-default-directory default-directory)
+ nil nil (or filename name ""))))
(setq mm-default-directory (file-name-directory file))
(and (or (not (file-exists-p file))
(yes-or-no-p (format "File %s already exists; overwrite? "
parts))
(defun mm-multiple-handles (handles)
+ (and (listp handles)
+ (> (length handles) 1)
+ (or (listp (car handles))
+ (stringp (car handles)))))
+
+(defun mm-complicated-handles (handles)
(and (listp (car handles))
(> (length handles) 1)))