Commit ed20a012 authored by Kenichi Handa's avatar Kenichi Handa

from trunk

parents cc6c7c75 92163053
This diff is collapsed.
This diff is collapsed.
This diff is collapsed.
;; mew-w3m.el --- View Text/Html content with w3m in Mew
;; Copyright (C) 2001, 2002, 2003, 2004, 2005, 2006, 2008, 2009, 2010
;; TSUCHIYA Masatoshi <tsuchiya@namazu.org>
;; Author: Shun-ichi GOTO <gotoh@taiyo.co.jp>,
;; Hideyuki SHIRAI <shirai@meadowy.org>
;; Created: Wed Feb 28 03:31:00 2001
;; Version: $Revision: 1.69 $
;; Keywords: Mew, mail, w3m, WWW, hypermedia
;; This file is a part of emacs-w3m.
;; This program 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.
;; This program 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 this program; see the file COPYING. If not, write to
;; the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
;; Boston, MA 02110-1301, USA.
;;; Commentary:
;; This package is for viewing formatted (rendered) Text/Html content
;; in Mew's message buffer.
;;; Installation:
;; (1) Simply load this file and add followings in your ~/.mew file.
;;
;; (require 'mew-w3m)
;;
;; (2) And you can use keymap of w3m-mode as mew-w3m-minor-mode.
;; To activate this feaeture, add followings also:
;;
;; (setq mew-use-w3m-minor-mode t)
;; (add-hook 'mew-message-hook 'mew-w3m-minor-mode-setter)
;;
;; (3) If you use mew-1.95b118 or later on which Emacs 21, 22 or XEmacs,
;; can display the images in the Text/Html message.
;; To activate this feaeture, add following in your ~/.mew file.
;;
;; (define-key mew-summary-mode-map "T" 'mew-w3m-view-inline-image)
;;
;; Press "T": Toggle the visibility of the images included its message only.
;; Press "C-uT": Display the all images included its Text/Html part."
;;
;; (4) You can use emacs-w3m to fetch and/or browse
;; `external-body with URL access'. To activate this feaeture,
;; add followings also:
;;
;; (setq mew-ext-url-alist
;; '(("^application/" "Fetch by emacs-w3m" mew-w3m-ext-url-fetch nil)
;; (t "Browse by emacs-w3m" mew-w3m-ext-url-show nil)))
;; or
;; (setq mew-ext-url-alist
;; '((t "Browse by emacs-w3m" mew-w3m-ext-url-show nil)))
;;
;;; Usage:
;; There's nothing special. Browse messages in usual way.
;; On viewing Text/Html file, rendered text is appeared in message
;; buffer instead of usual "HTML" banner.
;; C-c C-e operation is also allowed to view with external browser.
;;
;; If mew-use-w3m-minor-mode is t, key operations of w3m-mode is
;; allowed (as minor-mode-map) and jump links in message buffer.
;; NOTE: This feature is not complete. You may confuse.
;;
;;
;;; Code:
(require 'mew)
(require 'w3m)
(eval-when-compile (require 'cl))
;;; initializer for mew
(defgroup mew-w3m nil
"mew-w3m - Inline HTML rendering extension of Mew"
:group 'w3m)
(defcustom mew-use-w3m-minor-mode nil
"*Use w3m minor mode in message buffer.
Non-nil means that the minor mode whose keymap contains keys binded to
some emacs-w3m commands are activated in message buffer, when viewing
Text/Html contents."
:group 'mew-w3m
:type 'boolean)
(defcustom mew-w3m-auto-insert-image nil
"*If non-nil, images are inserted automatically in Multipart/Related message.
This variable is effective only in XEmacs, Emacs 21 and Emacs 22."
:group 'mew-w3m
:type 'boolean)
(defcustom mew-w3m-cid-retrieve-hook nil
"*Hook run after cid retrieved"
:group 'mew-w3m
:type 'hook)
(defcustom mew-w3m-region-cite-mark "&gt;&nbsp;"
"*Method of converting `blockquote'."
:group 'mew-w3m
:type '(choice (const :tag "Use Indent" nil)
(const :tag "Use Cite Mark \"> \"" "&gt;&nbsp;")
(string :tag "Use Other Mark")))
(defconst mew-w3m-safe-url-regexp "\\`cid:")
;; Avoid bytecompile error and warnings.
(eval-when-compile
(defvar mew-use-text/html)
(unless (fboundp 'mew-current-get-fld)
(autoload 'mew-coding-system-p "mew")
(autoload 'mew-current-get-fld "mew")
(autoload 'mew-current-get-msg "mew")
(autoload 'mew-syntax-get-entry-by-cid "mew")
(defun mew-cache-hit (&rest args) ())))
(defmacro mew-w3m-add-text-properties (props)
`(add-text-properties (point-min)
(min (1+ (point-min)) (point-max))
,props))
(defun mew-w3m-minor-mode-setter ()
"Check message buffer and activate w3m-minor-mode."
(w3m-minor-mode (or (and (get-text-property (point-min) 'w3m)
mew-use-w3m-minor-mode)
0)))
(defvar mew-w3m-use-safe-url-regexp t)
(defun mew-w3m-view-inline-image (&optional allimage)
"Display the images of Text/Html part.
\\<mew-summary-mode-map>
'\\[mew-w3m-view-inline-image]' Toggle display the images included its message only.
'\\[universal-argument]\\[mew-w3m-view-inline-image]' Display the all images included its Text/Html part."
(interactive "P")
(mew-summary-msg-or-part
(if allimage
(let ((mew-use-text/html t)
(mew-w3m-auto-insert-image t)
(mew-w3m-use-safe-url-regexp nil))
(mew-summary-display 'force))
(with-current-buffer (mew-buffer-message)
(let* ((image (get-text-property (point-min) 'w3m-images))
(w3m-display-inline-images image)
(w3m-safe-url-regexp (when mew-w3m-use-safe-url-regexp
mew-w3m-safe-url-regexp)))
(w3m-toggle-inline-images)
(mew-elet
(mew-w3m-add-text-properties `(w3m-images ,(not image)))
(set-buffer-modified-p nil)))))))
(defun mew-w3m-region (start end &optional url charset)
"w3m-region with inserting the cite mark."
(if (null mew-w3m-region-cite-mark)
(w3m-region start end url charset)
(save-restriction
(narrow-to-region start end)
(let ((case-fold-search t)
pos lines tagbeg0 tagend0 tagbeg1 tagend1)
(goto-char (point-min))
(while (w3m-search-tag "blockquote")
(setq tagbeg0 (match-beginning 0))
(setq tagend0 (match-end 0))
(when (w3m-search-tag "/blockquote")
(setq tagbeg1 (match-beginning 0))
(setq tagend1 (match-end 0))
(setq lines (buffer-substring tagend0 tagbeg1))
(delete-region tagbeg0 tagend1)
(insert (with-temp-buffer
(insert lines)
(goto-char (point-min))
(if (and (w3m-search-tag "pre")
(setq tagbeg0 (match-beginning 0))
(setq tagend0 (match-end 0))
(w3m-search-tag "/pre")
(setq tagbeg1 (match-beginning 0))
(setq tagend1 (match-end 0)))
(progn
(delete-region tagbeg1 tagend1)
(delete-region tagbeg0 tagend0))
;; delete <br>
(goto-char (point-min))
(while (w3m-search-tag "br")
(delete-region (match-beginning 0) (match-end 0))
(unless (looking-at "[\n\r]") (insert "\n"))))
(goto-char (point-max))
(skip-chars-backward " \t\n\f\r")
(delete-region (point) (point-max))
(goto-char (point-min))
(skip-chars-forward " \t\n\f\r")
(delete-region (point-min) (point))
(goto-char (point-min))
(while (not (eobp))
(insert mew-w3m-region-cite-mark)
(forward-line 1))
(goto-char (point-min))
(insert "<pre>\n")
(goto-char (point-max))
(insert "\n</pre>\n")
(buffer-substring (point-min) (point-max)))))))
(w3m-region (point-min) (point-max) url charset))))
;; processing Text/Html contents with w3m.
(defun mew-mime-text/html-w3m (&rest args)
"View Text/Html contents with w3m rendering output."
(let ((w3m-display-inline-images mew-w3m-auto-insert-image)
(w3m-safe-url-regexp (when mew-w3m-use-safe-url-regexp
mew-w3m-safe-url-regexp))
w3m-force-redisplay ;; don't redraw
charset wcs xref
cache begin end params execute)
(if (= (length args) 2)
;; Mew-2
(setq begin (nth 0 args) end (nth 1 args))
;; Old Mew
(setq cache (nth 0 args))
(setq begin (nth 1 args))
(setq end (nth 2 args))
(setq params (nth 3 args))
(setq execute (nth 4 args)))
(if (and cache (or execute (<= end begin)))
;; 'C-cC-e' + Old Mew
(apply 'mew-mime-text/html (list cache begin end params execute))
(save-excursion
;; search Xref: Header in SHIMBUN article
(when cache (set-buffer cache))
(goto-char (point-min))
(when (re-search-forward mew-eoh nil t)
(let ((eoh (point))
(case-fold-search t))
(goto-char (point-min))
(when (and (re-search-forward "^X-Shimbun-Id: " eoh t)
(goto-char (point-min))
(re-search-forward "^Xref: \\(.+\\)\n" eoh t))
(setq xref (match-string 1))
(w3m-static-if (fboundp 'match-string-no-properties)
(setq xref (match-string-no-properties 1))
(setq xref (match-string 1))
(set-text-properties 0 (length xref) nil xref))))))
(mew-elet
(cond
((and (null cache) (eq w3m-type 'w3m-m17n))
;; Mew-2 + w3m-m17n.
;; Coding-system and charset are decided by Mew.
(let ((w3m-input-coding-system w3m-input-coding-system)
(w3m-output-coding-system w3m-output-coding-system)
(w3m-halfdump-command-arguments w3m-halfdump-command-arguments))
(when (setq charset (mew-charset-guess-region begin end))
(setq wcs (mew-charset-to-cs charset)))
(when (and charset wcs (mew-coding-system-p wcs))
;; guess correctly and not us-ascii
(setq w3m-input-coding-system wcs)
(setq w3m-output-coding-system wcs)
(setq w3m-halfdump-command-arguments
(list "-halfdump"
"-I" charset "-O" charset
"-o" "ext_halfdump=1"
"-o" "pre_conv=1"
"-o" "strict_iso2022=0")))
(mew-w3m-region begin end xref)))
((null cache) ;; Mew-2 + w3m, w3mmee
(mew-w3m-region begin end xref (mew-charset-guess-region begin end)))
(t ;; Old Mew
(setq charset (or (mew-syntax-get-param params "charset")
(with-current-buffer cache
(mew-charset-guess-region begin end))))
(if charset
(setq wcs (mew-charset-to-cs charset))
(setq wcs mew-cs-text-for-write))
(mew-frwlet
mew-cs-dummy wcs
(mew-w3m-region (point)
(progn (insert-buffer-substring cache begin end)
(point))
xref))))
(mew-w3m-add-text-properties `(w3m t w3m-images ,mew-w3m-auto-insert-image))))))
(defvar w3m-mew-support-cid (and (boundp 'mew-version-number)
(fboundp 'mew-syntax-get-entry-by-cid)))
(defun mew-w3m-cid-retrieve (url &rest args)
(let ((output-buffer (current-buffer)))
(with-current-buffer w3m-current-buffer
(when (and w3m-mew-support-cid
(string-match "^cid:\\(.+\\)" url))
(setq url (match-string 1 url))
(let* ((fld (mew-current-get-fld (mew-frame-id)))
(msg (mew-current-get-msg (mew-frame-id)))
(cache (mew-cache-hit fld msg 'must-hit))
(syntax (mew-cache-decode-syntax cache))
cidstx beg end)
(if (string< "4.0.53" mew-version-number)
(setq cidstx (mew-syntax-get-entry-by-cid syntax (concat "<" url ">")))
(setq cidstx (mew-syntax-get-entry-by-cid syntax url)))
(when cidstx
(setq beg (mew-syntax-get-begin cidstx))
(setq end (mew-syntax-get-end cidstx))
(prog1
(with-current-buffer output-buffer
(set-buffer-multibyte t)
(insert-buffer-substring cache beg end)
(set-buffer-multibyte nil)
(downcase (car (mew-syntax-get-ct cidstx))))
(run-hooks 'mew-w3m-cid-retrieve-hook))))))))
(when w3m-mew-support-cid
(push (cons 'mew-message-mode 'mew-w3m-cid-retrieve)
w3m-cid-retrieve-function-alist))
(defun mew-w3m-ext-url-show (dummy url)
(pop-to-buffer (mew-buffer-message))
(w3m url))
(defun mew-w3m-ext-url-fetch (dummy url)
(lexical-let ((url url)
(name (file-name-nondirectory url))
handler)
(w3m-process-do
(success (prog1
(w3m-download url nil nil handler)
(message "Download: %s..." name)))
(if success
(message "Download: %s...done" name)
(message "Download: %s...failed" name))
(sit-for 1))))
(defun w3m-mail-compose-with-mew (source url charset content-type
to subject other-headers)
"Compose a mail using Mew."
(when (one-window-p)
(split-window))
(select-window (next-window))
(condition-case nil
(unless (and (boundp 'mew-init-p) mew-init-p
(progn
(mew-summary-jump-to-draft-buffer)
(and (eq major-mode 'mew-draft-mode)
(y-or-n-p "Attatch this draft? "))))
(mew-user-agent-compose to subject other-headers))
(quit
(if (y-or-n-p "Create new draft? ")
(mew-user-agent-compose to subject other-headers)
(delete-window)
(error "Abort mail composing"))))
(let* ((basename (file-name-nondirectory (w3m-url-strip-query url)))
(ct (downcase content-type))
(mew-attach-move-next-after-copy nil)
(i 1)
(pos -1)
(csorig (mew-charset-to-cs (symbol-name charset)))
last filename cs)
(unless (mew-attach-p)
(mew-draft-prepare-attachments))
;; goto last attachment
(setq last (catch 'last
(while (not (= pos (point)))
(setq i (1+ i))
(mew-attach-goto-number 'here `(,i))
(when (mew-attach-line-lastp)
(throw 'last t)))))
(when (eq csorig mew-cs-unknown)
(setq csorig nil))
(if (or (not last) (not (mew-attach-not-line012-1)))
(message "Can not attach from emacs-w3m here!")
;; Application/.*xml is not inline view with Mew.
(cond
((string= "application/xhtml+xml" ct)
(setq ct "text/html"))
((string-match "^application/.*xml$" ct)
(setq ct "text/xml")))
(setq filename (expand-file-name (cond
((and (string-match "^[\t ]*$" basename)
(string= ct "text/html"))
"index.html")
((and (string-match "^[\t ]*$" basename)
(string= ct "text/xml"))
"index.xml")
((string-match "^[\t ]*$" basename)
"dummy")
(t
basename))
mew-temp-dir))
(with-temp-buffer
(cond
((string= "text/html" ct)
(insert source)
(setq cs (w3m-static-if (fboundp 'mew-text/html-detect-cs)
(mew-text/html-detect-cs (point-min) (point-max))))
(when (or (eq cs mew-cs-unknown) (not cs))
(cond
(csorig
(setq cs csorig))
(t
(setq cs mew-cs-autoconv)))))
((string= "text/xml" ct)
(insert source)
(setq cs (w3m-static-if (fboundp 'mew-text/html-detect-cs)
(mew-text/html-detect-cs (point-min) (point-max))))
(when (or (eq cs mew-cs-unknown) (not cs))
(cond
(csorig
(setq cs csorig))
((mew-coding-system-p 'utf-8)
(setq cs 'utf-8))
(t
(setq cs mew-cs-autoconv)))))
((string-match "^text/" ct)
(insert source)
(setq cs mew-cs-autoconv))
(t
(mew-set-buffer-multibyte nil)
(insert source)
(setq cs mew-cs-binary)))
(setq charset (cond
((eq cs mew-cs-autoconv)
(mew-charset-guess-region (point-min) (point-max)))
((eq cs mew-cs-binary)
nil)
(t
(mew-cs-to-charset cs))))
(mew-frwlet
mew-cs-text-for-read cs
(write-region (point-min) (point-max) filename nil 'nomsg)))
(when ct
(setq ct (mew-capitalize ct)))
(mew-attach-copy filename (file-name-nondirectory filename))
;; content-type check & set
(let* ((nums (mew-syntax-nums))
(syntax (mew-syntax-get-entry mew-encode-syntax nums))
(file (mew-syntax-get-file syntax))
(ctl (mew-syntax-get-ct syntax))
(ct-orig (mew-syntax-get-value ctl 'cap))
cte)
(unless (string= ct ct-orig)
(setq ctl (list ct))
(mew-syntax-set-ct syntax ctl)
(setq cte (mew-ctdb-cte (mew-ctdb-by-ct ct)))
(mew-syntax-set-cte syntax cte)
(mew-syntax-set-cdp syntax (mew-syntax-cdp-format ct file))
(mew-encode-syntax-print mew-encode-syntax)))
;; charset set
(let* ((nums (mew-syntax-nums))
(syntax (mew-syntax-get-entry mew-encode-syntax nums))
(file (mew-syntax-get-file syntax))
(ctl (mew-syntax-get-ct syntax))
(ct (mew-syntax-get-value ctl 'cap))
(params (mew-syntax-get-params ctl))
(ocharset "charset"))
(when (and (string-match "^Text" ct) charset)
(setq params (mew-delete ocharset params))
(setq ctl (cons ct (cons (list ocharset charset) params)))
(mew-syntax-set-ct syntax ctl))
(mew-syntax-set-cd syntax url)
(mew-encode-syntax-print mew-encode-syntax))
(message "Compose a mail using Mew with %s...done" url)
(when (and (file-exists-p filename) (file-writable-p filename))
(delete-file filename)))))
;;;
(provide 'mew-w3m)
;; mew-w3m.el ends here
;;; mime-w3m.el --- mime-view content filter for text
;; Copyright (C) 2001, 2002, 2003, 2004, 2005, 2009
;; TSUCHIYA Masatoshi <tsuchiya@namazu.org>
;; Author: TSUCHIYA Masatoshi <tsuchiya@namazu.org>,
;; Akihiro Arisawa <ari@mbf.sphere.ne.jp>
;; Keywords: HTML, MIME, multimedia, mail, news
;; This file is *NOT* yet part of SEMI (Suite of Emacs MIME Interfaces).
;; This program 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.
;; This program 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 this program; see the file COPYING. If not, write to
;; the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
;; Boston, MA 02110-1301, USA.
;;; Install:
;; (1) Install SEMI.
;; (2) Put this file to appropriate directory.
;; (3) Write these following code to your ~/.emacs or ~/.gnus.
;;
;; (require 'mime-w3m)
;;; Code:
(eval-when-compile
(require 'cl)
;; mime-parse.el should be loaded before mime.el so as not to make
;; `mime-uri-parse-cid' an autoloaded function to which the byte
;; compiler might issue a nonsense warning.
(require 'mime-parse)
(require 'mime)
(require 'w3m)
(defvar mime-preview-condition)
(defvar mime-setup-enable-inline-html)
(defvar mime-view-mode-default-map))
(eval-and-compile
(when (featurep 'xemacs)
(require 'font)))
(defcustom mime-w3m-display-inline-images 'default
"*Non-nil means that inline images are displayed.
When this option is equal to `default',
`w3m-default-display-inline-images' is refered instead of this option,
to decide whether inline images are displayed."
:group 'w3m
:group 'mime-view
:type '(radio (const :format "%v " nil)
(sexp :format "non-nil "
:match
(lambda (widget value)
(and value (not (eq value 'default))))
:value-to-internal
(lambda (widget value)
(if (and value (not (equal value "default")))
(widget-sexp-value-to-internal widget value)
"t")))
(const default)))
(defcustom mime-w3m-safe-url-regexp "\\`cid:"
"*Regexp that matches safe url names.
Some HTML mails might have the trick of spammers using <img> tags. It
is likely to be intended to verify whether you have read the mail.
You can prevent your personal informations from leaking by setting
this to the regexp which matches the safe url names. The value of the
variable `w3m-safe-url-regexp' will be bound with this value. You may
set this value to nil if you consider all the urls to be safe."
:group 'mime-w3m
:type '(choice (regexp :format "%t: %v\n" :size 0)
(const :tag "All URLs are safe" nil)))
(defcustom mime-w3m-after-cursor-move-hook
'(w3m-print-this-url)
"*Hook run each time after the cursor moves in mime-w3m buffers.
This hook is called by the `mime-w3m-check-current-position' function
by way of `post-command-hook'."
:group 'mime-w3m
:type 'hook)
(defcustom mime-w3m-setup-hook nil
"*Hook run at the end of function `mime-w3m-setup'."
:group 'mime-w3m
:type 'hook)
(defvar mime-w3m-message-structure nil)
(make-variable-buffer-local 'mime-w3m-message-structure)
(defun mime-w3m-insinuate ()
"Insinuate `mime-w3m' module to SEMI."
(setq mime-setup-enable-inline-html nil)
(let (flag)
(when (boundp 'mime-preview-condition)
(labels ((overwrite (x)
(if (symbolp x)
(if (eq x 'mime-preview-text/html)
(setq flag 'mime-w3m-preview-text/html)
(when (eq x 'mime-w3m-preview-text/html)
(setq flag t))
x)
(if (consp x)
(cons (overwrite (car x)) (overwrite (cdr x)))
x))))