--- /dev/null
+;;; mm-decode.el --- Functions for decoding MIME things
+
+;; Copyright (C) 1998-2016 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
+;; it under the terms of the GNU General Public License as published by
+;; 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
+;; GNU General Public License for more details.
+
+;; You should have received a copy of the GNU General Public License
+;; along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>.
+
+;;; Commentary:
+
+;;; Code:
+
+(require 'mail-parse)
+(require 'mm-bodies)
+(eval-when-compile (require 'cl))
+
+(autoload 'gnus-map-function "gnus-util")
+(autoload 'gnus-replace-in-string "gnus-util")
+(autoload 'gnus-read-shell-command "gnus-util")
+
+(autoload 'mm-inline-partial "mm-partial")
+(autoload 'mm-inline-external-body "mm-extern")
+(autoload 'mm-extern-cache-contents "mm-extern")
+(autoload 'mm-insert-inline "mm-view")
+
+(autoload 'mm-archive-decoders "mm-archive")
+(autoload 'mm-archive-dissect-and-inline "mm-archive")
+(autoload 'mm-dissect-archive "mm-archive")
+
+(defvar gnus-current-window-configuration)
+
+(add-hook 'gnus-exit-gnus-hook 'mm-destroy-postponed-undisplay-list)
+(add-hook 'gnus-exit-gnus-hook 'mm-temp-files-delete)
+
+(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)
+
+(defface mm-command-output
+ '((((class color)
+ (background dark))
+ (:foreground "ForestGreen"))
+ (((class color)
+ (background light))
+ (:foreground "red3"))
+ (t
+ (:italic t)))
+ "Face used for displaying output from commands."
+ :group 'mime-display)
+
+;;; Convenience macros.
+
+(defmacro mm-handle-buffer (handle)
+ `(nth 0 ,handle))
+(defmacro mm-handle-type (handle)
+ `(nth 1 ,handle))
+(defsubst mm-handle-media-type (handle)
+ (if (stringp (car handle))
+ (car handle)
+ (car (mm-handle-type handle))))
+(defsubst mm-handle-media-supertype (handle)
+ (car (split-string (mm-handle-media-type handle) "/")))
+(defsubst mm-handle-media-subtype (handle)
+ (cadr (split-string (mm-handle-media-type handle) "/")))
+(defmacro mm-handle-encoding (handle)
+ `(nth 2 ,handle))
+(defmacro mm-handle-undisplayer (handle)
+ `(nth 3 ,handle))
+(defmacro mm-handle-set-undisplayer (handle function)
+ `(setcar (nthcdr 3 ,handle) ,function))
+(defmacro mm-handle-disposition (handle)
+ `(nth 4 ,handle))
+(defmacro mm-handle-description (handle)
+ `(nth 5 ,handle))
+(defmacro mm-handle-cache (handle)
+ `(nth 6 ,handle))
+(defmacro mm-handle-set-cache (handle contents)
+ `(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))
+
+(defcustom mm-text-html-renderer
+ (cond ((fboundp 'libxml-parse-html-region) 'shr)
+ ((executable-find "w3m") 'gnus-w3m)
+ ((executable-find "links") 'links)
+ ((executable-find "lynx") 'lynx)
+ ((locate-library "html2text") 'html2text)
+ (t nil))
+ "Render of HTML contents.
+It is one of defined renderer types, or a rendering function.
+The defined renderer types are:
+`shr': use the built-in Gnus HTML renderer;
+`gnus-w3m': use Gnus renderer based on w3m;
+`w3m': use emacs-w3m;
+`w3m-standalone': use plain w3m;
+`links': use links;
+`lynx': use lynx;
+`html2text': use html2text;
+nil : use external viewer (default web browser)."
+ :version "24.1"
+ :type '(choice (const shr)
+ (const gnus-w3m)
+ (const w3m :tag "emacs-w3m")
+ (const w3m-standalone :tag "standalone w3m" )
+ (const links)
+ (const lynx)
+ (const html2text)
+ (const nil :tag "External viewer")
+ (function))
+ :group 'mime-display)
+
+(defcustom mm-inline-text-html-with-images nil
+ "If non-nil, Gnus will allow retrieving images in HTML that has <img> tags.
+See also the documentation for the `mm-w3m-safe-url-regexp'
+variable."
+ :version "22.1"
+ :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."
+ :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)
+
+(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 "22.1"
+ :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)))
+ ("image/png"
+ mm-inline-image
+ (lambda (handle)
+ (mm-valid-and-fit-image-p 'png handle)))
+ ("image/gif"
+ mm-inline-image
+ (lambda (handle)
+ (mm-valid-and-fit-image-p 'gif handle)))
+ ("image/tiff"
+ mm-inline-image
+ (lambda (handle)
+ (mm-valid-and-fit-image-p 'tiff handle)))
+ ("image/xbm"
+ mm-inline-image
+ (lambda (handle)
+ (mm-valid-and-fit-image-p 'xbm handle)))
+ ("image/x-xbitmap"
+ mm-inline-image
+ (lambda (handle)
+ (mm-valid-and-fit-image-p 'xbm handle)))
+ ("image/xpm"
+ mm-inline-image
+ (lambda (handle)
+ (mm-valid-and-fit-image-p 'xpm handle)))
+ ("image/x-xpixmap"
+ mm-inline-image
+ (lambda (handle)
+ (mm-valid-and-fit-image-p 'xpm handle)))
+ ("image/bmp"
+ 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 identity)
+ ;; In case mime.types uses x-diff (as does Debian's mime-support-3.40).
+ ("text/x-diff" mm-display-patch-inline identity)
+ ("application/emacs-lisp" mm-display-elisp-inline identity)
+ ("application/x-emacs-lisp" mm-display-elisp-inline identity)
+ ("application/x-shellscript" mm-display-shell-script-inline identity)
+ ("application/x-sh" mm-display-shell-script-inline identity)
+ ("text/x-sh" mm-display-shell-script-inline identity)
+ ("application/javascript" mm-display-javascript-inline identity)
+ ("text/dns" mm-display-dns-inline identity)
+ ("text/x-org" mm-display-org-inline identity)
+ ("text/html"
+ mm-inline-text-html
+ (lambda (handle)
+ mm-text-html-renderer))
+ ("text/x-vcard"
+ mm-inline-text-vcard
+ (lambda (handle)
+ (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)
+ ("application/x-.?tar\\(-.*\\)?" mm-archive-dissect-and-inline identity)
+ ("application/zip" mm-archive-dissect-and-inline identity)
+ ("audio/wav" mm-inline-audio
+ (lambda (handle)
+ (and (or (featurep 'nas-sound) (featurep 'native-sound))
+ (device-sound-enabled-p))))
+ ("audio/au"
+ mm-inline-audio
+ (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)
+ ("image/.*"
+ mm-inline-image
+ (lambda (handle)
+ (and (mm-valid-image-format-p 'imagemagick)
+ (mm-with-unibyte-buffer
+ (mm-insert-part handle)
+ (let ((image
+ (ignore-errors
+ (if (fboundp 'create-image)
+ (create-image (buffer-string) 'imagemagick 'data-p)
+ (mm-create-image-xemacs
+ (mm-handle-media-subtype handle))))))
+ (when image
+ (setcar (cdr handle) (list "image/imagemagick"))
+ (mm-image-fit-p handle)))))))
+ ;; 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"
+ "application/x-gtar-compressed"
+ "application/x-tar"
+ "application/zip"
+ ;; Mutt still uses this even though it has already been withdrawn.
+ "application/pgp")
+ "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 regexp)
+ :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."
+ :version "22.1"
+ :type '(repeat regexp)
+ :group 'mime-display)
+
+(defcustom mm-automatic-display
+ '("text/plain" "text/enriched" "text/richtext" "text/html" "text/x-verbatim"
+ "text/x-vcard" "image/.*" "message/delivery-status" "multipart/.*"
+ "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"
+ "application/pkcs7-mime"
+ ;; Mutt still uses this even though it has already been withdrawn.
+ "application/pgp\\'"
+ "text/x-org")
+ "A list of MIME types to be displayed automatically."
+ :type '(repeat regexp)
+ :group 'mime-display)
+
+(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 regexp)
+ :group 'mime-display)
+
+(defcustom mm-inline-override-types nil
+ "Types to be treated as attachments even if they can be displayed inline."
+ :type '(repeat regexp)
+ :group 'mime-display)
+
+(defcustom mm-automatic-external-display nil
+ "List of MIME type regexps that will be displayed externally automatically."
+ :type '(repeat regexp)
+ :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/richtext are
+somewhat unwanted, then the value of this variable should be set
+to:
+
+ (\"text/html\" \"text/richtext\")
+
+Adding \"image/.*\" might also be useful. Spammers use it as the
+preferred part of multipart/alternative messages. See also
+`gnus-buttonized-mime-types', to which adding \"multipart/alternative\"
+enables you to choose manually one of two types those mails include."
+ :type '(repeat regexp) ;; See `mm-preferred-alternative-precedence'.
+ :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 t, then all images fit in the buffer.
+If `resize', try to resize the images so they fit."
+ :type '(radio
+ (const :tag "Inline large images as they are." t)
+ (const :tag "Resize large images." resize)
+ (const :tag "Do not inline large images." nil))
+ :group 'mime-display)
+
+(defcustom 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' (you should not remove these two
+functions), `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'."
+ :type '(list (set :inline t
+ (const mm-file-name-delete-control)
+ (const mm-file-name-delete-gotchas)
+ (const mm-file-name-delete-whitespace)
+ (const mm-file-name-trim-whitespace)
+ (const mm-file-name-collapse-whitespace)
+ (const mm-file-name-replace-whitespace)
+ (const capitalize)
+ (const downcase)
+ (const upcase)
+ (const upcase-initials)
+ (repeat :inline t
+ :tag "Function"
+ function)))
+ :version "23.1" ;; No Gnus
+ :group 'mime-display)
+
+
+(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.
+
+Each function takes a file name as input and returns a file name.")
+
+(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
+ "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)
+
+;;; Internal variables.
+
+(defvar mm-last-shell-command "")
+(defvar mm-content-id-alist nil)
+(defvar mm-postponed-undisplay-list nil)
+(defvar mm-inhibit-auto-detect-attachment nil)
+(defvar mm-temp-files-to-be-deleted nil
+ "List of temporary files scheduled to be deleted.")
+(defvar mm-temp-files-cache-file (concat ".mm-temp-files-" (user-login-name))
+ "Name of a file that caches a list of temporary files to be deleted.
+The file will be saved in the directory `mm-tmp-directory'.")
+
+;; According to RFC2046, in particular, in a digest, the default
+;; Content-Type value for a body part is changed from "text/plain" to
+;; "message/rfc822".
+(defvar mm-dissect-default-type "text/plain")
+
+(autoload 'mml2015-verify "mml2015")
+(autoload 'mml2015-verify-test "mml2015")
+(autoload 'mml-smime-verify "mml-smime")
+(autoload 'mml-smime-verify-test "mml-smime")
+
+(defvar mm-verify-function-alist
+ '(("application/pgp-signature" mml2015-verify "PGP" mml2015-verify-test)
+ ("application/x-gnus-pgp-signature" mm-uu-pgp-signed-extract-1 "PGP"
+ mm-uu-pgp-signed-test)
+ ("application/pkcs7-signature" mml-smime-verify "S/MIME"
+ mml-smime-verify-test)
+ ("application/x-pkcs7-signature" mml-smime-verify "S/MIME"
+ mml-smime-verify-test)))
+
+(defcustom mm-verify-option 'never
+ "Option of verifying signed parts.
+`never', not verify; `always', always verify;
+`known', only verify known protocols. Otherwise, ask user.
+
+When set to `always' or `known', you should add
+\"multipart/signed\" to `gnus-buttonized-mime-types' to see
+result of the verification."
+ :version "22.1"
+ :type '(choice (item always)
+ (item never)
+ (item :tag "only known protocols" known)
+ (item :tag "ask" nil))
+ :group 'mime-security)
+
+(autoload 'mml2015-decrypt "mml2015")
+(autoload 'mml2015-decrypt-test "mml2015")
+
+(defvar mm-decrypt-function-alist
+ '(("application/pgp-encrypted" mml2015-decrypt "PGP" mml2015-decrypt-test)
+ ("application/x-gnus-pgp-encrypted" mm-uu-pgp-encrypted-extract-1 "PGP"
+ mm-uu-pgp-encrypted-test)))
+
+(defcustom mm-decrypt-option nil
+ "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)
+ (item :tag "ask" nil))
+ :group 'mime-security)
+
+(defvar mm-viewer-completion-map
+ (let ((map (make-sparse-keymap 'mm-viewer-completion-map)))
+ (set-keymap-parent map minibuffer-local-completion-map)
+ ;; Should we bind other key to minibuffer-complete-word?
+ (define-key map " " 'self-insert-command)
+ map)
+ "Keymap for input viewer with completion.")
+
+;;; The functions.
+
+(defun mm-alist-to-plist (alist)
+ "Convert association list ALIST into the equivalent property-list form.
+The plist is returned. This converts from
+
+\((a . 1) (b . 2) (c . 3))
+
+into
+
+\(a 1 b 2 c 3)
+
+The original alist is not modified. See also `destructive-alist-to-plist'."
+ (let (plist)
+ (while alist
+ (let ((el (car alist)))
+ (setq plist (cons (cdr el) (cons (car el) plist))))
+ (setq alist (cdr alist)))
+ (nreverse plist)))
+
+(defun mm-keep-viewer-alive-p (handle)
+ "Say whether external viewer for HANDLE should stay alive."
+ (let ((types mm-keep-viewer-alive-types)
+ (type (mm-handle-media-type handle))
+ ty)
+ (catch 'found
+ (while (setq ty (pop types))
+ (when (string-match ty type)
+ (throw 'found t))))))
+
+(defun mm-handle-set-external-undisplayer (handle function)
+ "Set the undisplayer for HANDLE to FUNCTION.
+Postpone undisplaying of viewers for types in
+`mm-keep-viewer-alive-types'."
+ (if (mm-keep-viewer-alive-p handle)
+ (let ((new-handle (copy-sequence handle)))
+ (mm-handle-set-undisplayer new-handle function)
+ (mm-handle-set-undisplayer handle nil)
+ (push new-handle mm-postponed-undisplay-list))
+ (mm-handle-set-undisplayer handle function)))
+
+(defun mm-destroy-postponed-undisplay-list ()
+ (when mm-postponed-undisplay-list
+ (message "Destroying external MIME viewers")
+ (mm-destroy-parts mm-postponed-undisplay-list)))
+
+(defun mm-temp-files-delete ()
+ "Delete temporary files and those parent directories.
+Note that the deletion may fail if a program is catching hold of a file
+under Windows or Cygwin. In that case, it schedules the deletion of
+files left at the next time."
+ (let* ((coding-system-for-read mm-universal-coding-system)
+ (coding-system-for-write mm-universal-coding-system)
+ (cache-file (expand-file-name mm-temp-files-cache-file
+ mm-tmp-directory))
+ (cache (when (file-exists-p cache-file)
+ (mm-with-multibyte-buffer
+ (insert-file-contents cache-file)
+ (split-string (buffer-string) "\n" t))))
+ fails)
+ (dolist (temp (append cache mm-temp-files-to-be-deleted))
+ (when (and (file-exists-p temp)
+ (if (file-directory-p temp)
+ ;; A parent directory left at the previous time.
+ (progn
+ (ignore-errors (delete-directory temp))
+ (file-exists-p temp))
+ ;; Delete a temporary file and its parent directory.
+ (ignore-errors (delete-file temp))
+ (or (file-exists-p temp)
+ (progn
+ (setq temp (file-name-directory temp))
+ (ignore-errors (delete-directory temp))
+ (file-exists-p temp)))))
+ (push temp fails)))
+ (if fails
+ ;; Schedule the deletion of the files left at the next time.
+ (progn
+ (write-region (concat (mapconcat 'identity (nreverse fails) "\n")
+ "\n")
+ nil cache-file nil 'silent)
+ (set-file-modes cache-file #o600))
+ (when (file-exists-p cache-file)
+ (ignore-errors (delete-file cache-file))))
+ (setq mm-temp-files-to-be-deleted nil)))
+
+(autoload 'message-fetch-field "message")
+
+(defun mm-dissect-buffer (&optional no-strict-mime loose-mime from)
+ "Dissect the current buffer and return a list of MIME handles.
+If NO-STRICT-MIME, don't require the message to have a
+MIME-Version header before proceeding."
+ (save-excursion
+ (let (ct ctl type subtype cte cd description id result)
+ (save-restriction
+ (mail-narrow-to-head)
+ (when (or no-strict-mime
+ loose-mime
+ (mail-fetch-field "mime-version"))
+ (setq ct (mail-fetch-field "content-type")
+ ctl (and ct (mail-header-parse-content-type ct))
+ cte (mail-fetch-field "content-transfer-encoding")
+ cd (or (mail-fetch-field "content-disposition")
+ (when (and ctl
+ (eq 'mm-inline-text
+ (cadr (mm-assoc-string-match
+ mm-inline-media-tests
+ (car ctl)))))
+ "inline"))
+ ;; Newlines in description should be stripped so as
+ ;; not to break the MIME tag into two or more lines.
+ description (message-fetch-field "content-description")
+ id (mail-fetch-field "content-id"))
+ (unless from
+ (setq from (mail-fetch-field "from")))
+ ;; FIXME: In some circumstances, this code is running within
+ ;; a 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))))
+ (if description
+ (setq description (mail-decode-encoded-word-string
+ description)))))
+ (if (or (not ctl)
+ (not (string-match "/" (car ctl))))
+ (mm-dissect-singlepart
+ (list mm-dissect-default-type)
+ (and cte (intern (downcase (mail-header-strip cte))))
+ no-strict-mime
+ (and cd (mail-header-parse-content-disposition cd))
+ description)
+ (setq type (split-string (car ctl) "/"))
+ (setq subtype (cadr type)
+ type (car type))
+ (setq
+ result
+ (cond
+ ((equal type "multipart")
+ (let ((mm-dissect-default-type (if (equal subtype "digest")
+ "message/rfc822"
+ "text/plain"))
+ (start (cdr (assq 'start (cdr ctl)))))
+ (add-text-properties 0 (length (car ctl))
+ (mm-alist-to-plist (cdr ctl)) (car ctl))
+
+ ;; what really needs to be done here is a way to link a
+ ;; MIME handle back to it's parent MIME handle (in a multilevel
+ ;; MIME article). That would probably require changing
+ ;; the mm-handle API so we simply store the multipart buffer
+ ;; name as a text property of the "multipart/whatever" string.
+ (add-text-properties 0 (length (car ctl))
+ (list 'buffer (mm-copy-to-buffer)
+ 'from from
+ 'start start)
+ (car 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-strip cte))))
+ no-strict-mime
+ (and cd (mail-header-parse-content-disposition cd))
+ description id)
+ ctl from))))
+ (when id
+ (when (string-match " *<\\(.*\\)> *" id)
+ (setq id (match-string 1 id)))
+ (push (cons id result) mm-content-id-alist))
+ result))))
+
+(defun mm-dissect-singlepart (ctl cte &optional force cdl description id)
+ (when (or force
+ (if (equal "text/plain" (car ctl))
+ (assoc 'format ctl)
+ t))
+ ;; Guess what the type of application/octet-stream parts should
+ ;; really be.
+ (let ((filename (cdr (assq 'filename (cdr cdl)))))
+ (when (and (not mm-inhibit-auto-detect-attachment)
+ (equal (car ctl) "application/octet-stream")
+ filename
+ (string-match "\\.\\([^.]+\\)$" filename))
+ (let ((new-type (mailcap-extension-to-mime (match-string 1 filename))))
+ (when new-type
+ (setcar ctl new-type)))))
+ (let ((handle
+ (mm-make-handle
+ (mm-copy-to-buffer) ctl cte nil cdl description nil id))
+ (decoder (assoc (car ctl) (mm-archive-decoders))))
+ (if (and decoder
+ ;; Do automatic decoding
+ (cadr decoder)
+ (executable-find (caddr decoder)))
+ (mm-dissect-archive handle)
+ handle))))
+
+(defun mm-dissect-multipart (ctl from)
+ (goto-char (point-min))
+ (let* ((boundary (concat "\n--" (mail-content-type-get ctl 'boundary)))
+ (close-delimiter (concat (regexp-quote boundary) "--[ \t]*$"))
+ start parts
+ (end (save-excursion
+ (goto-char (point-max))
+ (if (re-search-backward close-delimiter nil t)
+ (match-beginning 0)
+ (point-max))))
+ (mm-inhibit-auto-detect-attachment
+ (equal (car ctl) "multipart/encrypted")))
+ (setq boundary (concat (regexp-quote boundary) "[ \t]*$"))
+ (while (and (< (point) end) (re-search-forward boundary end t))
+ (goto-char (match-beginning 0))
+ (when start
+ (save-excursion
+ (save-restriction
+ (narrow-to-region start (point))
+ (setq parts (nconc (list (mm-dissect-buffer t nil from)) parts)))))
+ (end-of-line 2)
+ (or (looking-at boundary)
+ (forward-line 1))
+ (setq start (point)))
+ (when (and start (< start end))
+ (save-excursion
+ (save-restriction
+ (narrow-to-region start end)
+ (setq parts (nconc (list (mm-dissect-buffer t nil from)) parts)))))
+ (mm-possibly-verify-or-decrypt (nreverse parts) ctl from)))
+
+(defun mm-copy-to-buffer ()
+ "Copy the contents of the current buffer to a fresh buffer."
+ (let ((obuf (current-buffer))
+ (mb (mm-multibyte-p))
+ beg)
+ (goto-char (point-min))
+ (search-forward-regexp "^\n" nil t)
+ (setq beg (point))
+ (with-current-buffer
+ (generate-new-buffer " *mm*")
+ ;; Preserve the data's unibyteness (for url-insert-file-contents).
+ (mm-set-buffer-multibyte mb)
+ (insert-buffer-substring obuf beg)
+ (current-buffer))))
+
+(defun mm-display-parts (handle &optional no-default)
+ (if (stringp (car handle))
+ (mapcar 'mm-display-parts (cdr handle))
+ (if (bufferp (car handle))
+ (save-restriction
+ (narrow-to-region (point) (point))
+ (mm-display-part handle)
+ (goto-char (point-max)))
+ (mapcar 'mm-display-parts handle))))
+
+(autoload 'mailcap-parse-mailcaps "mailcap")
+(autoload 'mailcap-mime-info "mailcap")
+
+(defun mm-head-p (&optional point)
+ "Return non-nil if point is in the article header."
+ (let ((point (or point (point))))
+ (save-excursion
+ (goto-char point)
+ (and (not (re-search-backward "^$" nil t))
+ (re-search-forward "^$" nil t)))))
+
+(defun mm-display-part (handle &optional no-default force)
+ "Display the MIME part represented by HANDLE.
+Returns nil if the part is removed; inline if displayed inline;
+external if displayed external."
+ (save-excursion
+ (mailcap-parse-mailcaps)
+ (if (and (not force)
+ (mm-handle-displayed-p handle))
+ (mm-remove-part handle)
+ (let* ((ehandle (if (equal (mm-handle-media-type handle)
+ "message/external-body")
+ (progn
+ (unless (mm-handle-cache handle)
+ (mm-extern-cache-contents handle))
+ (mm-handle-cache handle))
+ handle))
+ (type (mm-handle-media-type ehandle))
+ (method (mailcap-mime-info type))
+ (filename (or (mail-content-type-get
+ (mm-handle-disposition handle) 'filename)
+ (mail-content-type-get
+ (mm-handle-type handle) 'name)
+ "<file>"))
+ (external mm-enable-external)
+ (decoder (assoc (car (mm-handle-type handle))
+ (mm-archive-decoders))))
+ (cond
+ ((and decoder
+ (executable-find (caddr decoder)))
+ (mm-archive-dissect-and-inline handle)
+ 'inline)
+ ((and (mm-inlinable-p ehandle)
+ (mm-inlined-p ehandle))
+ (when force
+ (if (mm-head-p)
+ (re-search-forward "^$" nil t)
+ (forward-line 1)))
+ (mm-display-inline handle)
+ 'inline)
+ ((or method
+ (not no-default))
+ (if (and (not method)
+ (equal "text" (car (split-string type "/"))))
+ (progn
+ (forward-line 1)
+ (mm-insert-inline handle (mm-get-part handle))
+ 'inline)
+ (setq external
+ (and method ;; If nil, we always use "save".
+ (or (eq mm-enable-external t)
+ (and (eq mm-enable-external 'ask)
+ (y-or-n-p
+ (concat
+ "Display part (" type
+ ") "
+ (if (stringp method)
+ (concat
+ "using external program \""
+ (format method filename) "\"")
+ (gnus-format-message
+ "by calling `%s' on the contents)" method))
+ "? "))))))
+ (if external
+ (mm-display-external
+ handle (or method 'mailcap-save-binary-file))
+ (mm-display-external
+ handle 'mailcap-save-binary-file)))))))))
+
+(declare-function gnus-configure-windows "gnus-win" (setting &optional force))
+(defvar mailcap-mime-extensions) ; mailcap-mime-info autoloads
+(declare-function term-mode "term" ())
+(declare-function term-char-mode "term" ())
+
+(defun mm-display-external (handle method)
+ "Display HANDLE using METHOD."
+ (let ((outbuf (current-buffer)))
+ (mm-with-unibyte-buffer
+ (if (functionp method)
+ (let ((cur (current-buffer)))
+ (if (eq method 'mailcap-save-binary-file)
+ (progn
+ (set-buffer (generate-new-buffer " *mm*"))
+ (setq method nil))
+ (mm-insert-part handle)
+ (mm-add-meta-html-tag handle)
+ (let ((win (get-buffer-window cur t)))
+ (when win
+ (select-window win)))
+ (switch-to-buffer (generate-new-buffer " *mm*")))
+ (buffer-disable-undo)
+ (mm-set-buffer-file-coding-system mm-binary-coding-system)
+ (insert-buffer-substring cur)
+ (goto-char (point-min))
+ (when method
+ (message "Viewing with %s" method))
+ (let ((mm (current-buffer))
+ (non-viewer (assq 'non-viewer
+ (mailcap-mime-info
+ (mm-handle-media-type handle) t))))
+ (unwind-protect
+ (if method
+ (progn
+ (when (and (boundp 'gnus-summary-buffer)
+ (bufferp gnus-summary-buffer)
+ (buffer-name gnus-summary-buffer))
+ ;; So that we pop back to the right place, sort of.
+ (switch-to-buffer gnus-summary-buffer)
+ (switch-to-buffer mm))
+ (delete-other-windows)
+ (funcall method))
+ (mm-save-part handle))
+ (when (and (not non-viewer)
+ method)
+ (mm-handle-set-undisplayer handle mm)))))
+ ;; The function is a string to be executed.
+ (mm-insert-part handle)
+ (mm-add-meta-html-tag handle)
+ (let* ((dir (mm-make-temp-file
+ (expand-file-name "emm." mm-tmp-directory) 'dir))
+ (filename (or
+ (mail-content-type-get
+ (mm-handle-disposition handle) 'filename)
+ (mail-content-type-get
+ (mm-handle-type handle) 'name)))
+ (mime-info (mailcap-mime-info
+ (mm-handle-media-type handle) t))
+ (needsterm (or (assoc "needsterm" mime-info)
+ (assoc "needsterminal" mime-info)))
+ (copiousoutput (assoc "copiousoutput" mime-info))
+ file buffer)
+ ;; We create a private sub-directory where we store our files.
+ (set-file-modes dir #o700)
+ (if filename
+ (setq file (expand-file-name
+ (gnus-map-function mm-file-name-rewrite-functions
+ (file-name-nondirectory filename))
+ dir))
+ ;; Use nametemplate (defined in RFC1524) if it is specified
+ ;; in mailcap.
+ (let ((suffix (cdr (assoc "nametemplate" mime-info))))
+ (if (and suffix
+ (string-match "\\`%s\\(\\..+\\)\\'" suffix))
+ (setq suffix (match-string 1 suffix))
+ ;; Otherwise, use a suffix according to
+ ;; `mailcap-mime-extensions'.
+ (setq suffix (car (rassoc (mm-handle-media-type handle)
+ mailcap-mime-extensions))))
+ (setq file (mm-make-temp-file (expand-file-name "mm." dir)
+ nil suffix))))
+ (let ((coding-system-for-write mm-binary-coding-system))
+ (write-region (point-min) (point-max) file nil 'nomesg))
+ ;; The file is deleted after the viewer exists. If the users edits
+ ;; the file, changes will be lost. Set file to read-only to make it
+ ;; clear.
+ (set-file-modes file #o400)
+ (message "Viewing with %s" method)
+ (cond
+ (needsterm
+ (let ((command (mm-mailcap-command
+ method file (mm-handle-type handle))))
+ (unwind-protect
+ (if window-system
+ (set-process-sentinel
+ (start-process "*display*" nil
+ mm-external-terminal-program
+ "-e" shell-file-name
+ shell-command-switch command)
+ `(lambda (process state)
+ (if (eq 'exit (process-status process))
+ (run-at-time
+ 60.0 nil
+ (lambda ()
+ (ignore-errors (delete-file ,file))
+ (ignore-errors (delete-directory
+ ,(file-name-directory
+ file))))))))
+ (require 'term)
+ (require 'gnus-win)
+ (set-buffer
+ (setq buffer
+ (make-term "display"
+ shell-file-name
+ nil
+ shell-command-switch command)))
+ (term-mode)
+ (term-char-mode)
+ (set-process-sentinel
+ (get-buffer-process buffer)
+ `(lambda (process state)
+ (when (eq 'exit (process-status process))
+ (ignore-errors (delete-file ,file))
+ (ignore-errors
+ (delete-directory ,(file-name-directory file)))
+ (gnus-configure-windows
+ ',gnus-current-window-configuration))))
+ (gnus-configure-windows 'display-term))
+ (mm-handle-set-external-undisplayer handle (cons file buffer))
+ (add-to-list 'mm-temp-files-to-be-deleted file t))
+ (message "Displaying %s..." command))
+ 'external)
+ (copiousoutput
+ (with-current-buffer outbuf
+ (forward-line 1)
+ (mm-insert-inline
+ handle
+ (unwind-protect
+ (progn
+ (call-process shell-file-name nil
+ (setq buffer
+ (generate-new-buffer " *mm*"))
+ nil
+ shell-command-switch
+ (mm-mailcap-command
+ method file (mm-handle-type handle)))
+ (if (buffer-live-p buffer)
+ (with-current-buffer buffer
+ (buffer-string))))
+ (progn
+ (ignore-errors (delete-file file))
+ (ignore-errors (delete-directory
+ (file-name-directory file)))
+ (ignore-errors (kill-buffer buffer))))))
+ 'inline)
+ (t
+ ;; Deleting the temp file should be postponed for some wrappers,
+ ;; shell scripts, and so on, which might exit right after having
+ ;; started a viewer command as a background job.
+ (let ((command (mm-mailcap-command
+ method file (mm-handle-type handle))))
+ (unwind-protect
+ (let ((process-connection-type nil))
+ (start-process "*display*"
+ (setq buffer
+ (generate-new-buffer " *mm*"))
+ shell-file-name
+ shell-command-switch command)
+ (set-process-sentinel
+ (get-buffer-process buffer)
+ (lexical-let ((outbuf outbuf)
+ (file file)
+ (buffer buffer)
+ (command command)
+ (handle handle))
+ (lambda (process state)
+ (when (eq (process-status process) 'exit)
+ (run-at-time
+ 60.0 nil
+ (lambda ()
+ (ignore-errors (delete-file file))
+ (ignore-errors (delete-directory
+ (file-name-directory file)))))
+ (when (buffer-live-p outbuf)
+ (with-current-buffer outbuf
+ (let ((buffer-read-only nil)
+ (point (point)))
+ (forward-line 2)
+ (let ((start (point)))
+ (mm-insert-inline
+ handle (with-current-buffer buffer
+ (buffer-string)))
+ (put-text-property start (point)
+ 'face 'mm-command-output))
+ (goto-char point))))
+ (when (buffer-live-p buffer)
+ (kill-buffer buffer)))
+ (message "Displaying %s...done" command)))))
+ (mm-handle-set-external-undisplayer
+ handle (cons file buffer))
+ (add-to-list 'mm-temp-files-to-be-deleted file t))
+ (message "Displaying %s..." command))
+ 'external)))))))
+
+(defun mm-mailcap-command (method file type-list)
+ (let ((ctl (cdr type-list))
+ (beg 0)
+ (uses-stdin t)
+ out sub total)
+ (while (string-match "%{\\([^}]+\\)}\\|'%s'\\|\"%s\"\\|%s\\|%t\\|%%"
+ method beg)
+ (push (substring method beg (match-beginning 0)) out)
+ (setq beg (match-end 0)
+ total (match-string 0 method)
+ sub (match-string 1 method))
+ (cond
+ ((string= total "%%")
+ (push "%" out))
+ ((or (string= total "%s")
+ ;; We do our own quoting.
+ (string= total "'%s'")
+ (string= total "\"%s\""))
+ (setq uses-stdin nil)
+ (push (shell-quote-argument
+ (gnus-map-function mm-path-name-rewrite-functions file)) out))
+ ((string= total "%t")
+ (push (shell-quote-argument (car type-list)) out))
+ (t
+ (push (shell-quote-argument (or (cdr (assq (intern sub) ctl)) "")) out))))
+ (push (substring method beg (length method)) out)
+ (when uses-stdin
+ (push "<" out)
+ (push (shell-quote-argument
+ (gnus-map-function mm-path-name-rewrite-functions file))
+ out))
+ (mapconcat 'identity (nreverse out) "")))
+
+(defun mm-remove-parts (handles)
+ "Remove the displayed MIME parts represented by HANDLES."
+ (if (and (listp handles)
+ (bufferp (car handles)))
+ (mm-remove-part handles)
+ (let (handle)
+ (while (setq handle (pop handles))
+ (cond
+ ((stringp handle)
+ (when (buffer-live-p (get-text-property 0 'buffer handle))
+ (kill-buffer (get-text-property 0 'buffer handle))))
+ ((and (listp handle)
+ (stringp (car handle)))
+ (mm-remove-parts (cdr handle)))
+ (t
+ (mm-remove-part handle)))))))
+
+(defun mm-destroy-parts (handles)
+ "Remove the displayed MIME parts represented by HANDLES."
+ (if (and (listp handles)
+ (bufferp (car handles)))
+ (mm-destroy-part handles)
+ (let (handle)
+ (while (setq handle (pop handles))
+ (cond
+ ((stringp handle)
+ (when (buffer-live-p (get-text-property 0 'buffer handle))
+ (kill-buffer (get-text-property 0 'buffer handle))))
+ ((and (listp handle)
+ (stringp (car handle)))
+ (mm-destroy-parts handle))
+ (t
+ (mm-destroy-part handle)))))))
+
+(defun mm-remove-part (handle)
+ "Remove the displayed MIME part represented by HANDLE."
+ (when (listp handle)
+ (let ((object (mm-handle-undisplayer handle)))
+ (ignore-errors
+ (cond
+ ;; Internally displayed part.
+ ((mm-annotationp object)
+ (if (featurep 'xemacs)
+ (delete-annotation object)))
+ ((or (functionp object)
+ (and (listp object)
+ (eq (car object) 'lambda)))
+ (funcall object))
+ ;; Externally displayed part.
+ ((consp object)
+ (condition-case ()
+ (while (get-buffer-process (cdr object))
+ (interrupt-process (get-buffer-process (cdr object)))
+ (message "Waiting for external displayer to die...")
+ (sit-for 1))
+ (quit)
+ (error))
+ (ignore-errors (and (cdr object) (kill-buffer (cdr object))))
+ (message "Waiting for external displayer to die...done")
+ (ignore-errors (delete-file (car object)))
+ (ignore-errors (delete-directory (file-name-directory
+ (car object)))))
+ ((bufferp object)
+ (when (buffer-live-p object)
+ (kill-buffer object)))))
+ (mm-handle-set-undisplayer handle nil))))
+
+(defun mm-display-inline (handle)
+ (let* ((type (mm-handle-media-type handle))
+ (function (cadr (mm-assoc-string-match mm-inline-media-tests type))))
+ (funcall function handle)
+ (goto-char (point-min))))
+
+(defun mm-assoc-string-match (alist type)
+ (dolist (elem alist)
+ (when (string-match (car elem) type)
+ (return elem))))
+
+(defun mm-automatic-display-p (handle)
+ "Say whether the user wants HANDLE to be displayed automatically."
+ (let ((methods mm-automatic-display)
+ (type (mm-handle-media-type handle))
+ method result)
+ (while (setq method (pop methods))
+ (when (and (not (mm-inline-override-p handle))
+ (string-match method type))
+ (setq result t
+ methods nil)))
+ result))
+
+(defun mm-inlinable-p (handle &optional type)
+ "Say whether HANDLE can be displayed inline.
+TYPE is the mime-type of the object; it defaults to the one given
+in HANDLE."
+ (unless type (setq type (mm-handle-media-type handle)))
+ (let ((alist mm-inline-media-tests)
+ test)
+ (while alist
+ (when (string-match (caar alist) type)
+ (setq test (caddar alist)
+ alist nil)
+ (setq test (funcall test handle)))
+ (pop alist))
+ test))
+
+(defun mm-inlined-p (handle)
+ "Say whether the user wants HANDLE to be displayed inline."
+ (let ((methods mm-inlined-types)
+ (type (mm-handle-media-type handle))
+ method result)
+ (while (setq method (pop methods))
+ (when (and (not (mm-inline-override-p handle))
+ (string-match method type))
+ (setq result t
+ methods nil)))
+ result))
+
+(defun mm-attachment-override-p (handle)
+ "Say whether HANDLE should have attachment behavior overridden."
+ (let ((types mm-attachment-override-types)
+ (type (mm-handle-media-type handle))
+ ty)
+ (catch 'found
+ (while (setq ty (pop types))
+ (when (and (string-match ty type)
+ (mm-inlinable-p handle))
+ (throw 'found t))))))
+
+(defun mm-inline-override-p (handle)
+ "Say whether HANDLE should have inline behavior overridden."
+ (let ((types mm-inline-override-types)
+ (type (mm-handle-media-type handle))
+ ty)
+ (catch 'found
+ (while (setq ty (pop types))
+ (when (string-match ty type)
+ (throw 'found t))))))
+
+(defun mm-automatic-external-display-p (type)
+ "Return the user-defined method for TYPE."
+ (let ((methods mm-automatic-external-display)
+ method result)
+ (while (setq method (pop methods))
+ (when (string-match method type)
+ (setq result t
+ methods nil)))
+ result))
+
+(defun mm-destroy-part (handle)
+ "Destroy the data structures connected to HANDLE."
+ (when (listp handle)
+ (mm-remove-part handle)
+ (when (buffer-live-p (mm-handle-buffer handle))
+ (kill-buffer (mm-handle-buffer handle)))))
+
+(defun mm-handle-displayed-p (handle)
+ "Say whether HANDLE is displayed or not."
+ (mm-handle-undisplayer handle))
+
+;;;
+;;; Functions for outputting parts
+;;;
+
+(defmacro mm-with-part (handle &rest forms)
+ "Run FORMS in the temp buffer containing the contents of HANDLE."
+ ;; The handle-buffer's content is a sequence of bytes, not a sequence of
+ ;; chars, so the buffer should be unibyte. It may happen that the
+ ;; handle-buffer is multibyte for some reason, in which case now is a good
+ ;; time to adjust it, since we know at this point that it should
+ ;; be unibyte.
+ `(let* ((handle ,handle))
+ (when (and (mm-handle-buffer handle)
+ (buffer-name (mm-handle-buffer handle)))
+ (with-temp-buffer
+ (mm-disable-multibyte)
+ (insert-buffer-substring (mm-handle-buffer handle))
+ (mm-decode-content-transfer-encoding
+ (mm-handle-encoding handle)
+ (mm-handle-media-type handle))
+ ,@forms))))
+(put 'mm-with-part 'lisp-indent-function 1)
+(put 'mm-with-part 'edebug-form-spec '(body))
+
+(defun mm-get-part (handle &optional no-cache)
+ "Return the contents of HANDLE as a string.
+If NO-CACHE is non-nil, cached contents of a message/external-body part
+are ignored."
+ (if (and (not no-cache)
+ (equal (mm-handle-media-type handle) "message/external-body"))
+ (progn
+ (unless (mm-handle-cache handle)
+ (mm-extern-cache-contents handle))
+ (with-current-buffer (mm-handle-buffer (mm-handle-cache handle))
+ (buffer-string)))
+ (mm-with-part handle
+ (buffer-string))))
+
+(defun mm-insert-part (handle &optional no-cache)
+ "Insert the contents of HANDLE in the current buffer.
+If NO-CACHE is non-nil, cached contents of a message/external-body part
+are ignored."
+ (let ((text (cond ((eq (mail-content-type-get (mm-handle-type handle)
+ 'charset)
+ 'gnus-decoded)
+ (with-current-buffer (mm-handle-buffer handle)
+ (buffer-string)))
+ ((mm-multibyte-p)
+ (mm-string-to-multibyte (mm-get-part handle no-cache)))
+ (t
+ (mm-get-part handle no-cache)))))
+ (save-restriction
+ (widen)
+ (goto-char
+ (prog1
+ (point)
+ (if (and (eq (get-char-property (max (point-min) (1- (point))) 'face)
+ 'mm-uu-extract)
+ (eq (get-char-property 0 'face text) 'mm-uu-extract))
+ ;; Separate the extracted parts that have the same faces.
+ (insert "\n" text)
+ (insert text)))))))
+
+(defun mm-file-name-delete-whitespace (file-name)
+ "Remove all whitespace characters from FILE-NAME."
+ (while (string-match "\\s-+" file-name)
+ (setq file-name (replace-match "" t t file-name)))
+ file-name)
+
+(defun mm-file-name-trim-whitespace (file-name)
+ "Remove leading and trailing whitespace characters from FILE-NAME."
+ (when (string-match "\\`\\s-+" file-name)
+ (setq file-name (substring file-name (match-end 0))))
+ (when (string-match "\\s-+\\'" file-name)
+ (setq file-name (substring file-name 0 (match-beginning 0))))
+ file-name)
+
+(defun mm-file-name-collapse-whitespace (file-name)
+ "Collapse multiple whitespace characters in FILE-NAME."
+ (while (string-match "\\s-\\s-+" file-name)
+ (setq file-name (replace-match " " t t file-name)))
+ file-name)
+
+(defun mm-file-name-replace-whitespace (file-name)
+ "Replace whitespace characters in FILE-NAME with underscores.
+Set the option `mm-file-name-replace-whitespace' to any other
+string if you do not like underscores."
+ (let ((s (or mm-file-name-replace-whitespace "_")))
+ (while (string-match "\\s-" file-name)
+ (setq file-name (replace-match s t t file-name))))
+ file-name)
+
+(defun mm-file-name-delete-control (filename)
+ "Delete control characters from FILENAME."
+ (gnus-replace-in-string filename "[\x00-\x1f\x7f]" ""))
+
+(defun mm-file-name-delete-gotchas (filename)
+ "Delete shell gotchas from FILENAME."
+ (setq filename (gnus-replace-in-string filename "[<>|]" ""))
+ (gnus-replace-in-string filename "^[.-]+" ""))
+
+(defun mm-save-part (handle &optional prompt)
+ "Write HANDLE to a file.
+PROMPT overrides the default one used to ask user for a file name."
+ (let ((filename (or (mail-content-type-get
+ (mm-handle-disposition handle) 'filename)
+ (mail-content-type-get
+ (mm-handle-type handle) 'name)))
+ file)
+ (when filename
+ (setq filename (gnus-map-function mm-file-name-rewrite-functions
+ (file-name-nondirectory filename))))
+ (while
+ (progn
+ (setq file
+ (read-file-name
+ (or prompt
+ (format "Save MIME part to (default %s): "
+ (or filename "")))
+ (or mm-default-directory default-directory)
+ (expand-file-name (or filename "")
+ (or mm-default-directory default-directory))))
+ (cond ((or (not file) (equal file ""))
+ (message "Please enter a file name")
+ t)
+ ((and (file-directory-p file)
+ (not filename))
+ (message "Please enter a non-directory file name")
+ t)
+ (t nil)))
+ (sit-for 2)
+ (discard-input))
+ (if (file-directory-p file)
+ (setq file (expand-file-name filename file))
+ (setq file (expand-file-name
+ file (or mm-default-directory default-directory))))
+ (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? "
+ file)))
+ (progn
+ (mm-save-part-to-file handle file)
+ file))))
+
+(defun mm-add-meta-html-tag (handle &optional charset force-charset)
+ "Add meta html tag to specify CHARSET of HANDLE in the current buffer.
+CHARSET defaults to the one HANDLE specifies. Existing meta tag that
+specifies charset will not be modified unless FORCE-CHARSET is non-nil.
+Return t if meta tag is added or replaced."
+ (when (equal (mm-handle-media-type handle) "text/html")
+ (when (or charset
+ (setq charset (mail-content-type-get (mm-handle-type handle)
+ 'charset)))
+ (setq charset (format "\
+<meta http-equiv=\"Content-Type\" content=\"text/html; charset=%s\">" charset))
+ (let ((case-fold-search t))
+ (goto-char (point-min))
+ (if (re-search-forward "\
+<meta\\s-+http-equiv=[\"']?content-type[\"']?\\s-+content=[\"']\
+text/\\(\\sw+\\)\\(?:;\\s-*charset=\\([^\"'>]+\\)\\)?[^>]*>" nil t)
+ (if (and (not force-charset)
+ (match-beginning 2)
+ (string-match "\\`html\\'" (match-string 1)))
+ ;; Don't modify existing meta tag.
+ nil
+ ;; Replace it with the one specifying charset.
+ (replace-match charset)
+ t)
+ (if (re-search-forward "<head>\\s-*" nil t)
+ (insert charset "\n")
+ (re-search-forward "<html\\(?:\\s-+[^>]+\\|\\s-*\\)>\\s-*" nil t)
+ (insert "<head>\n" charset "\n</head>\n"))
+ t)))))
+
+(defun mm-save-part-to-file (handle file)
+ (mm-with-unibyte-buffer
+ (mm-insert-part handle)
+ (mm-add-meta-html-tag handle)
+ (let ((current-file-modes (default-file-modes)))
+ (set-default-file-modes mm-attachment-file-modes)
+ (unwind-protect
+ ;; Don't re-compress .gz & al. Arguably we should make
+ ;; `file-name-handler-alist' nil, but that would chop
+ ;; ange-ftp, which is reasonable to use here.
+ (mm-write-region (point-min) (point-max) file nil nil nil 'binary t)
+ (set-default-file-modes current-file-modes)))))
+
+(defun mm-pipe-part (handle &optional cmd)
+ "Pipe HANDLE to a process.
+Use CMD as the process."
+ (let ((name (mail-content-type-get (mm-handle-type handle) 'name))
+ (command (or cmd
+ (gnus-read-shell-command
+ "Shell command on MIME part: " mm-last-shell-command))))
+ (mm-with-unibyte-buffer
+ (mm-insert-part handle)
+ (mm-add-meta-html-tag handle)
+ (let ((coding-system-for-write 'binary))
+ (shell-command-on-region (point-min) (point-max) command nil)))))
+
+(autoload 'gnus-completing-read "gnus-util")
+
+(defun mm-interactively-view-part (handle)
+ "Display HANDLE using METHOD."
+ (let* ((type (mm-handle-media-type handle))
+ (methods
+ (mapcar (lambda (i) (cdr (assoc 'viewer i)))
+ (mailcap-mime-info type 'all)))
+ (method (let ((minibuffer-local-completion-map
+ mm-viewer-completion-map))
+ (completing-read "Viewer: " methods))))
+ (when (string= method "")
+ (error "No method given"))
+ (if (string-match "^[^% \t]+$" method)
+ (setq method (concat method " %s")))
+ (mm-display-external handle method)))
+
+(defun mm-preferred-alternative (handles &optional preferred)
+ "Say which of HANDLES are preferred."
+ (let ((prec (if preferred (list preferred)
+ (mm-preferred-alternative-precedence handles)))
+ p h result type handle)
+ (while (setq p (pop prec))
+ (setq h handles)
+ (while h
+ (setq handle (car h))
+ (setq type (mm-handle-media-type handle))
+ (when (and (equal p type)
+ (mm-automatic-display-p handle)
+ (or (stringp (car handle))
+ (not (mm-handle-disposition handle))
+ (equal (car (mm-handle-disposition handle))
+ "inline")))
+ (setq result handle
+ h nil
+ prec nil))
+ (pop h)))
+ result))
+
+(defun mm-preferred-alternative-precedence (handles)
+ "Return the precedence based on HANDLES and `mm-discouraged-alternatives'."
+ (setq handles (reverse handles))
+ (dolist (disc (reverse mm-discouraged-alternatives))
+ (dolist (handle (copy-sequence handles))
+ (when (string-match disc (mm-handle-media-type handle))
+ (setq handles (nconc (delete handle handles) (list handle))))))
+ ;; Remove empty parts.
+ (dolist (handle (copy-sequence handles))
+ (when (and (bufferp (mm-handle-buffer handle))
+ (not (with-current-buffer (mm-handle-buffer handle)
+ (goto-char (point-min))
+ (re-search-forward "[^ \t\n]" nil t))))
+ (setq handles (nconc (delete handle handles) (list handle)))))
+ (mapcar #'mm-handle-media-type handles))
+
+(defun mm-get-content-id (id)
+ "Return the handle(s) referred to by ID."
+ (cdr (assoc id mm-content-id-alist)))
+
+(defconst mm-image-type-regexps
+ '(("/\\*.*XPM.\\*/" . xpm)
+ ("P[1-6]" . pbm)
+ ("GIF8" . gif)
+ ("\377\330" . jpeg)
+ ("\211PNG\r\n" . png)
+ ("#define" . xbm)
+ ("\\(MM\0\\*\\)\\|\\(II\\*\0\\)" . tiff)
+ ("%!PS" . postscript))
+ "Alist of (REGEXP . IMAGE-TYPE) pairs used to auto-detect image types.
+When the first bytes of an image file match REGEXP, it is assumed to
+be of image type IMAGE-TYPE.")
+
+;; Steal from image.el. image-type-from-data suffers multi-line matching bug.
+(defun mm-image-type-from-buffer ()
+ "Determine the image type from data in the current buffer.
+Value is a symbol specifying the image type or nil if type cannot
+be determined."
+ (let ((types mm-image-type-regexps)
+ type)
+ (goto-char (point-min))
+ (while (and types (null type))
+ (let ((regexp (car (car types)))
+ (image-type (cdr (car types))))
+ (when (looking-at regexp)
+ (setq type image-type))
+ (setq types (cdr types))))
+ type))
+
+(defun mm-get-image (handle)
+ "Return an image instance based on HANDLE."
+ (let ((type (mm-handle-media-subtype handle))
+ spec)
+ ;; Allow some common translations.
+ (setq type
+ (cond
+ ((equal type "x-pixmap")
+ "xpm")
+ ((equal type "x-xbitmap")
+ "xbm")
+ ((equal type "x-portable-bitmap")
+ "pbm")
+ (t type)))
+ (or (mm-handle-cache handle)
+ (mm-with-unibyte-buffer
+ (mm-insert-part handle)
+ (prog1
+ (setq spec
+ (ignore-errors
+ ;; Avoid testing `make-glyph' since W3 may define
+ ;; a bogus version of it.
+ (if (fboundp 'create-image)
+ (create-image (buffer-string)
+ (or (mm-image-type-from-buffer)
+ (intern type))
+ 'data-p)
+ (mm-create-image-xemacs type))))
+ (mm-handle-set-cache handle spec))))))
+
+(defun mm-create-image-xemacs (type)
+ (when (featurep 'xemacs)
+ (cond
+ ((equal type "xbm")
+ ;; xbm images require special handling, since
+ ;; the only way to create glyphs from these
+ ;; (without a ton of work) is to write them
+ ;; out to a file, and then create a file
+ ;; specifier.
+ (let ((file (mm-make-temp-file
+ (expand-file-name "emm" mm-tmp-directory)
+ nil ".xbm")))
+ (unwind-protect
+ (progn
+ (write-region (point-min) (point-max) file)
+ (make-glyph (list (cons 'x file))))
+ (ignore-errors
+ (delete-file file)))))
+ (t
+ (make-glyph
+ (vector
+ (or (mm-image-type-from-buffer)
+ (intern type))
+ :data (buffer-string)))))))
+
+(declare-function image-size "image.c" (spec &optional pixels frame))
+
+(defun mm-image-fit-p (handle)
+ "Say whether the image in HANDLE will fit the current window."
+ (let ((image (mm-get-image handle)))
+ (or (not image)
+ (if (featurep 'xemacs)
+ ;; XEmacs's glyphs can actually tell us about their width, so
+ ;; let's be nice and smart about them.
+ (or mm-inline-large-images
+ (and (<= (glyph-width image) (window-pixel-width))
+ (<= (glyph-height image) (window-pixel-height))))
+ (let* ((size (image-size image))
+ (w (car size))
+ (h (cdr size)))
+ (or mm-inline-large-images
+ (and (<= h (1- (window-height))) ; Don't include mode line.
+ (<= w (window-width)))))))))
+
+(defun mm-valid-image-format-p (format)
+ "Say whether FORMAT can be displayed natively by Emacs."
+ (cond
+ ;; Handle XEmacs
+ ((fboundp 'valid-image-instantiator-format-p)
+ (valid-image-instantiator-format-p format))
+ ;; Handle Emacs
+ ((fboundp 'image-type-available-p)
+ (and (display-graphic-p)
+ (image-type-available-p format)))
+ ;; Nobody else can do images yet.
+ (t
+ nil)))
+
+(defun mm-valid-and-fit-image-p (format handle)
+ "Say whether FORMAT can be displayed natively and HANDLE fits the window."
+ (and (mm-valid-image-format-p format)
+ (mm-image-fit-p handle)))
+
+(defun mm-find-part-by-type (handles type &optional notp recursive)
+ "Search in HANDLES for part with TYPE.
+If NOTP, returns first non-matching part.
+If RECURSIVE, search recursively."
+ (let (handle)
+ (while handles
+ (if (and recursive (stringp (caar handles)))
+ (if (setq handle (mm-find-part-by-type (cdar handles) type
+ notp recursive))
+ (setq handles nil))
+ (if (if notp
+ (not (equal (mm-handle-media-type (car handles)) type))
+ (equal (mm-handle-media-type (car handles)) type))
+ (setq handle (car handles)
+ handles nil)))
+ (setq handles (cdr handles)))
+ handle))
+
+(defun mm-find-raw-part-by-type (ctl type &optional notp)
+ (goto-char (point-min))
+ (let* ((boundary (concat "--" (mm-handle-multipart-ctl-parameter ctl
+ 'boundary)))
+ (close-delimiter (concat "^" (regexp-quote boundary) "--[ \t]*$"))
+ start
+ (end (save-excursion
+ (goto-char (point-max))
+ (if (re-search-backward close-delimiter nil t)
+ (match-beginning 0)
+ (point-max))))
+ result)
+ (setq boundary (concat "^" (regexp-quote boundary) "[ \t]*$"))
+ (while (and (not result)
+ (re-search-forward boundary end t))
+ (goto-char (match-beginning 0))
+ (when start
+ (save-excursion
+ (save-restriction
+ (narrow-to-region start (1- (point)))
+ (when (let* ((ct (mail-fetch-field "content-type"))
+ (ctl (and ct (mail-header-parse-content-type ct))))
+ (if notp
+ (not (equal (car ctl) type))
+ (equal (car ctl) type)))
+ (setq result (buffer-string))))))
+ (forward-line 1)
+ (setq start (point)))
+ (when (and (not result) start)
+ (save-excursion
+ (save-restriction
+ (narrow-to-region start end)
+ (when (let* ((ct (mail-fetch-field "content-type"))
+ (ctl (and ct (mail-header-parse-content-type ct))))
+ (if notp
+ (not (equal (car ctl) type))
+ (equal (car ctl) type)))
+ (setq result (buffer-string))))))
+ result))
+
+(defvar mm-security-handle nil)
+
+(defsubst mm-set-handle-multipart-parameter (handle parameter value)
+ ;; HANDLE could be a CTL.
+ (when handle
+ (put-text-property 0 (length (car handle)) parameter value
+ (car handle))))
+
+(autoload 'mm-view-pkcs7 "mm-view")
+
+(defun mm-possibly-verify-or-decrypt (parts ctl &optional from)
+ (let ((type (car ctl))
+ (subtype (cadr (split-string (car ctl) "/")))
+ (mm-security-handle ctl) ;; (car CTL) is the type.
+ protocol func functest)
+ (cond
+ ((or (equal type "application/x-pkcs7-mime")
+ (equal type "application/pkcs7-mime"))
+ (with-temp-buffer
+ (when (and (cond
+ ((eq mm-decrypt-option 'never) nil)
+ ((eq mm-decrypt-option 'always) t)
+ ((eq mm-decrypt-option 'known) t)
+ (t (y-or-n-p
+ (format "Decrypt (S/MIME) part? "))))
+ (mm-view-pkcs7 parts from))
+ (setq parts (mm-dissect-buffer t)))))
+ ((equal subtype "signed")
+ (unless (and (setq protocol
+ (mm-handle-multipart-ctl-parameter ctl 'protocol))
+ (not (equal protocol "multipart/mixed")))
+ ;; The message is broken or draft-ietf-openpgp-multsig-01.
+ (let ((protocols mm-verify-function-alist))
+ (while protocols
+ (if (and (or (not (setq functest (nth 3 (car protocols))))
+ (funcall functest parts ctl))
+ (mm-find-part-by-type parts (caar protocols) nil t))
+ (setq protocol (caar protocols)
+ protocols nil)
+ (setq protocols (cdr protocols))))))
+ (setq func (nth 1 (assoc protocol mm-verify-function-alist)))
+ (when (cond
+ ((eq mm-verify-option 'never) nil)
+ ((eq mm-verify-option 'always) t)
+ ((eq mm-verify-option 'known)
+ (and func
+ (or (not (setq functest
+ (nth 3 (assoc protocol
+ mm-verify-function-alist))))
+ (funcall functest parts ctl))))
+ (t
+ (y-or-n-p
+ (format "Verify signed (%s) part? "
+ (or (nth 2 (assoc protocol mm-verify-function-alist))
+ (format "protocol=%s" protocol))))))
+ (save-excursion
+ (if func
+ (setq parts (funcall func parts ctl))
+ (mm-set-handle-multipart-parameter
+ mm-security-handle 'gnus-details
+ (format "Unknown sign protocol (%s)" protocol))))))
+ ((equal subtype "encrypted")
+ (unless (setq protocol
+ (mm-handle-multipart-ctl-parameter ctl 'protocol))
+ ;; The message is broken.
+ (let ((parts parts))
+ (while parts
+ (if (assoc (mm-handle-media-type (car parts))
+ mm-decrypt-function-alist)
+ (setq protocol (mm-handle-media-type (car parts))
+ parts nil)
+ (setq parts (cdr parts))))))
+ (setq func (nth 1 (assoc protocol mm-decrypt-function-alist)))
+ (when (cond
+ ((eq mm-decrypt-option 'never) nil)
+ ((eq mm-decrypt-option 'always) t)
+ ((eq mm-decrypt-option 'known)
+ (and func
+ (or (not (setq functest
+ (nth 3 (assoc protocol
+ mm-decrypt-function-alist))))
+ (funcall functest parts ctl))))
+ (t
+ (y-or-n-p
+ (format "Decrypt (%s) part? "
+ (or (nth 2 (assoc protocol mm-decrypt-function-alist))
+ (format "protocol=%s" protocol))))))
+ (save-excursion
+ (if func
+ (setq parts (funcall func parts ctl))
+ (mm-set-handle-multipart-parameter
+ mm-security-handle 'gnus-details
+ (format "Unknown encrypt protocol (%s)" protocol))))))
+ (t nil))
+ 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)))
+
+(defun mm-merge-handles (handles1 handles2)
+ (append
+ (if (listp (car handles1))
+ handles1
+ (list handles1))
+ (if (listp (car handles2))
+ handles2
+ (list handles2))))
+
+(defun mm-readable-p (handle)
+ "Say whether the content of HANDLE is readable."
+ (and (< (with-current-buffer (mm-handle-buffer handle)
+ (buffer-size)) 10000)
+ (mm-with-unibyte-buffer
+ (mm-insert-part handle)
+ (and (eq (mm-body-7-or-8) '7bit)
+ (not (mm-long-lines-p 76))))))
+
+(declare-function libxml-parse-html-region "xml.c"
+ (start end &optional base-url discard-comments))
+(declare-function shr-insert-document "shr" (dom))
+(defvar shr-blocked-images)
+(defvar shr-use-fonts)
+(defvar gnus-inhibit-images)
+(autoload 'gnus-blocked-images "gnus-art")
+
+(defun mm-shr (handle)
+ ;; Require since we bind its variables.
+ (require 'shr)
+ (let ((article-buffer (current-buffer))
+ (shr-width (if (and (boundp 'shr-use-fonts)
+ shr-use-fonts)
+ nil
+ fill-column))
+ (shr-content-function (lambda (id)
+ (let ((handle (mm-get-content-id id)))
+ (when handle
+ (mm-with-part handle
+ (buffer-string))))))
+ shr-inhibit-images shr-blocked-images charset char)
+ (if (and (boundp 'gnus-summary-buffer)
+ (bufferp gnus-summary-buffer)
+ (buffer-name gnus-summary-buffer))
+ (with-current-buffer gnus-summary-buffer
+ (setq shr-inhibit-images gnus-inhibit-images
+ shr-blocked-images (gnus-blocked-images)))
+ (setq shr-inhibit-images gnus-inhibit-images
+ shr-blocked-images (gnus-blocked-images)))
+ (unless handle
+ (setq handle (mm-dissect-buffer t)))
+ (setq charset (mail-content-type-get (mm-handle-type handle) 'charset))
+ (save-restriction
+ (narrow-to-region (point) (point))
+ (shr-insert-document
+ (mm-with-part handle
+ (insert (prog1
+ (if (and charset
+ (setq charset
+ (mm-charset-to-coding-system charset
+ nil t))
+ (not (eq charset 'ascii)))
+ (mm-decode-coding-string (buffer-string) charset)
+ (mm-string-as-multibyte (buffer-string)))
+ (erase-buffer)
+ (mm-enable-multibyte)))
+ (goto-char (point-min))
+ (setq case-fold-search t)
+ (while (re-search-forward
+ "&#\\(?:x\\([89][0-9a-f]\\)\\|\\(1[2-5][0-9]\\)\\);" nil t)
+ (when (setq char
+ (cdr (assq (if (match-beginning 1)
+ (string-to-number (match-string 1) 16)
+ (string-to-number (match-string 2)))
+ mm-extra-numeric-entities)))
+ (replace-match (char-to-string char))))
+ ;; Remove "soft hyphens".
+ (goto-char (point-min))
+ (while (search-forward "" nil t)
+ (replace-match "" t t))
+ (libxml-parse-html-region (point-min) (point-max))))
+ (unless (bobp)
+ (insert "\n"))
+ (mm-convert-shr-links)
+ (mm-handle-set-undisplayer
+ handle
+ `(lambda ()
+ (let ((inhibit-read-only t))
+ (delete-region ,(point-min-marker)
+ ,(point-max-marker))))))))
+
+(defvar shr-map)
+
+(autoload 'widget-convert-button "wid-edit")
+
+(defun mm-convert-shr-links ()
+ (let ((start (point-min))
+ end)
+ (while (and start
+ (< start (point-max)))
+ (when (setq start (text-property-not-all start (point-max) 'shr-url nil))
+ (setq end (next-single-property-change start 'shr-url nil (point-max)))
+ (widget-convert-button
+ 'url-link start end
+ :help-echo (get-text-property start 'help-echo)
+ :keymap shr-map
+ (get-text-property start 'shr-url))
+ (put-text-property start end 'local-map nil)
+ (dolist (overlay (overlays-at start))
+ (overlay-put overlay 'face nil))
+ (setq start end)))))
+
+(defun mm-handle-filename (handle)
+ "Return filename of HANDLE if any."
+ (or (mail-content-type-get (mm-handle-type handle)
+ 'name)
+ (mail-content-type-get (mm-handle-disposition handle)
+ 'filename)))
+
+(provide 'mm-decode)
+
+;; Local Variables:
+;; coding: utf-8
+;; End:
+
+;;; mm-decode.el ends here
projects / packages / blobdiff