;;; mm-decode.el --- Functions for decoding MIME things
-;; Copyright (C) 1998,99 Free Software Foundation, Inc.
+;; Copyright (C) 1998, 1999, 2000, 2001, 2002, 2003, 2004
+;; Free Software Foundation, Inc.
;; Author: Lars Magne Ingebrigtsen <larsi@gnus.org>
;; MORIOKA Tomohiko <morioka@jaist.ac.jp>
(require 'mail-parse)
(require 'mailcap)
(require 'mm-bodies)
+(eval-when-compile (require 'cl)
+ (require 'term))
+
+(eval-and-compile
+ (autoload 'mm-inline-partial "mm-partial")
+ (autoload 'mm-inline-external-body "mm-extern")
+ (autoload 'mm-insert-inline "mm-view"))
+
+(add-hook 'gnus-exit-gnus-hook 'mm-destroy-postponed-undisplay-list)
+
+(defgroup mime-display ()
+ "Display of MIME in mail and news articles."
+ :link '(custom-manual "(emacs-mime)Display Customization")
+ :version "21.1"
+ :group 'mail
+ :group 'news
+ :group 'multimedia)
+
+(defgroup mime-security ()
+ "MIME security in mail and news articles."
+ :link '(custom-manual "(emacs-mime)Display Customization")
+ :group 'mail
+ :group 'news
+ :group 'multimedia)
;;; Convenience macros.
`(setcar (nthcdr 6 ,handle) ,contents))
(defmacro mm-handle-id (handle)
`(nth 7 ,handle))
+(defmacro mm-handle-multipart-original-buffer (handle)
+ `(get-text-property 0 'buffer (car ,handle)))
+(defmacro mm-handle-multipart-from (handle)
+ `(get-text-property 0 'from (car ,handle)))
+(defmacro mm-handle-multipart-ctl-parameter (handle parameter)
+ `(get-text-property 0 ,parameter (car ,handle)))
+
(defmacro mm-make-handle (&optional buffer type encoding undisplayer
disposition description cache
id)
`(list ,buffer ,type ,encoding ,undisplayer
,disposition ,description ,cache ,id))
-(defvar mm-inline-media-tests
- '(("image/jpeg"
+(defcustom mm-text-html-renderer
+ (cond ((locate-library "w3") 'w3)
+ ((executable-find "w3m") (if (locate-library "w3m")
+ 'w3m
+ 'w3m-standalone))
+ ((executable-find "links") 'links)
+ ((executable-find "lynx") 'lynx)
+ (t 'html2text))
+ "Render of HTML contents.
+It is one of defined renderer types, or a rendering function.
+The defined renderer types are:
+`w3' : use Emacs/W3;
+`w3m' : use emacs-w3m;
+`w3m-standalone': use w3m;
+`links': use links;
+`lynx' : use lynx;
+`html2text' : use html2text;
+nil : use external viewer."
+ :type '(choice (const w3)
+ (const w3m)
+ (const w3m-standalone)
+ (const links)
+ (const lynx)
+ (const html2text)
+ (const nil)
+ (function))
+ :version "21.3"
+ :group 'mime-display)
+
+(defvar mm-inline-text-html-renderer nil
+ "Function used for rendering inline HTML contents.
+It is suggested to customize `mm-text-html-renderer' instead.")
+
+(defcustom mm-inline-text-html-with-images 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."
+ :type 'boolean
+ :group 'mime-display)
+
+(defcustom mm-w3m-safe-url-regexp "\\`cid:"
+ "Regexp matching URLs which are considered to be safe.
+Some HTML mails might contain a nasty trick used by spammers, using
+the <img> tag which is far more evil than the [Click Here!] button.
+It is most likely intended to check whether the ominous spam mail has
+reached your eyes or not, in which case the spammer knows for sure
+that your email address is valid. It is done by embedding an
+identifier string into a URL that you might automatically retrieve
+when displaying the image. The default value is \"\\\\`cid:\" which only
+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."
+ :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."
+ :type 'boolean
+ :group 'mime-display)
+
+(defcustom mm-enable-external t
+ "Indicate whether external MIME handlers should be used.
+
+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"
+ :type '(choice (const :tag "Always" t)
+ (const :tag "Never" nil)
+ (const :tag "Ask" ask))
+ :group 'mime-display)
+
+(defcustom mm-inline-media-tests
+ '(("image/p?jpeg"
mm-inline-image
(lambda (handle)
(mm-valid-and-fit-image-p 'jpeg handle)))
mm-inline-image
(lambda (handle)
(mm-valid-and-fit-image-p 'xpm handle)))
- ("image/x-pixmap"
+ ("image/x-xpixmap"
mm-inline-image
(lambda (handle)
(mm-valid-and-fit-image-p 'xpm handle)))
mm-inline-image
(lambda (handle)
(mm-valid-and-fit-image-p 'bmp handle)))
+ ("image/x-portable-bitmap"
+ mm-inline-image
+ (lambda (handle)
+ (mm-valid-and-fit-image-p 'pbm handle)))
("text/plain" mm-inline-text identity)
("text/enriched" mm-inline-text identity)
("text/richtext" mm-inline-text identity)
+ ("text/x-patch" mm-display-patch-inline
+ (lambda (handle)
+ (locate-library "diff-mode")))
+ ("application/emacs-lisp" mm-display-elisp-inline identity)
+ ("application/x-emacs-lisp" mm-display-elisp-inline identity)
("text/html"
- mm-inline-text
+ mm-inline-text-html
(lambda (handle)
- (locate-library "w3")))
+ (or mm-inline-text-html-renderer
+ mm-text-html-renderer)))
("text/x-vcard"
- mm-inline-text
+ mm-inline-text-vcard
(lambda (handle)
- (locate-library "vcard")))
+ (or (featurep 'vcard)
+ (locate-library "vcard"))))
("message/delivery-status" mm-inline-text identity)
("message/rfc822" mm-inline-message identity)
+ ("message/partial" mm-inline-partial identity)
+ ("message/external-body" mm-inline-external-body identity)
("text/.*" mm-inline-text identity)
("audio/wav" mm-inline-audio
(lambda (handle)
(lambda (handle)
(and (or (featurep 'nas-sound) (featurep 'native-sound))
(device-sound-enabled-p))))
+ ("application/pgp-signature" ignore identity)
+ ("application/x-pkcs7-signature" ignore identity)
+ ("application/pkcs7-signature" ignore identity)
+ ("application/x-pkcs7-mime" ignore identity)
+ ("application/pkcs7-mime" ignore identity)
("multipart/alternative" ignore identity)
("multipart/mixed" ignore identity)
- ("multipart/related" ignore identity))
- "Alist of media types/test that say whether the media types can be displayed inline.")
-
-(defvar mm-inlined-types
- '("image/.*" "text/.*" "message/delivery-status" "message/rfc822")
- "List of media types that are to be displayed inline.")
-
-(defvar mm-automatic-display
+ ("multipart/related" ignore identity)
+ ;; Disable audio and image
+ ("audio/.*" ignore ignore)
+ ("image/.*" ignore ignore)
+ ;; Default to displaying as text
+ (".*" mm-inline-text mm-readable-p))
+ "Alist of media types/tests saying whether types can be displayed inline."
+ :type '(repeat (list (regexp :tag "MIME type")
+ (function :tag "Display function")
+ (function :tag "Display test")))
+ :group 'mime-display)
+
+(defcustom mm-inlined-types
+ '("image/.*" "text/.*" "message/delivery-status" "message/rfc822"
+ "message/partial" "message/external-body" "application/emacs-lisp"
+ "application/x-emacs-lisp"
+ "application/pgp-signature" "application/x-pkcs7-signature"
+ "application/pkcs7-signature" "application/x-pkcs7-mime"
+ "application/pkcs7-mime")
+ "List of media types that are to be displayed inline.
+See also `mm-inline-media-tests', which says how to display a media
+type inline."
+ :type '(repeat string)
+ :group 'mime-display)
+
+(defcustom mm-keep-viewer-alive-types
+ '("application/postscript" "application/msword" "application/vnd.ms-excel"
+ "application/pdf" "application/x-dvi")
+ "List of media types for which the external viewer will not be killed
+when selecting a different article."
+ :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")
- "A list of MIME types to be displayed automatically.")
+ "message/rfc822" "text/x-patch" "application/pgp-signature"
+ "application/emacs-lisp" "application/x-emacs-lisp"
+ "application/x-pkcs7-signature"
+ "application/pkcs7-signature" "application/x-pkcs7-mime"
+ "application/pkcs7-mime")
+ "A list of MIME types to be displayed automatically."
+ :type '(repeat string)
+ :group 'mime-display)
-(defvar mm-attachment-override-types
- '("text/plain" "text/x-vcard")
- "Types that should have \"attachment\" ignored if they can be displayed inline.")
+(defcustom mm-attachment-override-types '("text/x-vcard"
+ "application/pkcs7-mime"
+ "application/x-pkcs7-mime"
+ "application/pkcs7-signature"
+ "application/x-pkcs7-signature")
+ "Types to have \"attachment\" ignored if they can be displayed inline."
+ :type '(repeat string)
+ :group 'mime-display)
-(defvar mm-automatic-external-display nil
- "List of MIME type regexps that will be displayed externally automatically.")
+(defcustom mm-inline-override-types nil
+ "Types to be treated as attachments even if they can be displayed inline."
+ :type '(repeat string)
+ :group 'mime-display)
-(defvar mm-discouraged-alternatives nil
+(defcustom mm-automatic-external-display nil
+ "List of MIME type regexps that will be displayed externally automatically."
+ :type '(repeat string)
+ :group 'mime-display)
+
+(defcustom mm-discouraged-alternatives nil
"List of MIME types that are discouraged when viewing multipart/alternative.
Viewing agents are supposed to view the last possible part of a message,
as that is supposed to be the richest. However, users may prefer other
types instead, and this list says what types are most unwanted. If,
-for instance, text/html parts are very unwanted, and text/richtech are
+for instance, text/html parts are very unwanted, and text/richtext are
somewhat unwanted, then the value of this variable should be set
to:
- (\"text/html\" \"text/richtext\")")
+ (\"text/html\" \"text/richtext\")"
+ :type '(repeat string)
+ :group 'mime-display)
+
+(defcustom mm-tmp-directory
+ (if (fboundp 'temp-directory)
+ (temp-directory)
+ (if (boundp 'temporary-file-directory)
+ temporary-file-directory
+ "/tmp/"))
+ "Where mm will store its temporary files."
+ :type 'directory
+ :group 'mime-display)
+
+(defcustom mm-inline-large-images nil
+ "If non-nil, then all images fit in the buffer."
+ :type 'boolean
+ :group 'mime-display)
+
+(defvar mm-file-name-rewrite-functions
+ '(mm-file-name-delete-control mm-file-name-delete-gotchas)
+ "*List of functions used for rewriting file names of MIME parts.
+Each function takes a file name as input and returns a file name.
+
+Ready-made functions include
+`mm-file-name-delete-control'
+`mm-file-name-delete-gotchas'
+`mm-file-name-delete-whitespace',
+`mm-file-name-trim-whitespace',
+`mm-file-name-collapse-whitespace',
+`mm-file-name-replace-whitespace',
+`capitalize', `downcase', `upcase', and
+`upcase-initials'.")
+
+(defvar mm-path-name-rewrite-functions nil
+ "*List of functions for rewriting the full file names of MIME parts.
+This is used when viewing parts externally, and is meant for
+transforming the absolute name so that non-compliant programs can find
+the file where it's saved.
-(defvar mm-tmp-directory
- (cond ((fboundp 'temp-directory) (temp-directory))
- ((boundp 'temporary-file-directory) temporary-file-directory)
- ("/tmp/"))
- "Where mm will store its temporary files.")
+Each function takes a file name as input and returns a file name.")
-(defvar mm-inline-large-images nil
- "If non-nil, then all images fit in the buffer.")
+(defvar mm-file-name-replace-whitespace nil
+ "String used for replacing whitespace characters; default is `\"_\"'.")
+
+(defcustom mm-default-directory nil
+ "The default directory where mm will save files.
+If not set, `default-directory' will be used."
+ :type '(choice directory (const :tag "Default" nil))
+ :group 'mime-display)
+
+(defcustom mm-attachment-file-modes 384
+
projects / gnus / blobdiff