/usr/share/emacs/site-lisp/w3m/w3m-mail.el is in w3m-el 1.4.483+0.20120614-8.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396 397 | ;;; w3m-mail.el --- an interface to mail-user-agent for sending web pages
;; Copyright (C) 2006, 2009, 2010 TSUCHIYA Masatoshi
;; Author: Katsumi Yamaoka <yamaoka@jpl.org>
;; Keywords: 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 module provides the `w3m-mail' command which enables you to
;; send web pages as mails respecting those content types (typically
;; text/html). Currently this program works if and only if you set
;; the `mail-user-agent' variable to one of the following agents:
;; `gnus-user-agent'
;; `message-user-agent'
;; `mew-user-agent'
;; `vm-user-agent'
;; `wl-user-agent'
;; To send the page you are looking at, type `M-x w3m-mail' or click
;; the menu button, fill message headers properly, and type `C-c C-c'.
;;; Code:
(require 'w3m)
(defcustom w3m-mail-subject '("Emailing:" url)
"A list of strings and symbols used to generate the subject header.
Valid symbols include `url' which is replaced with the url of the page
and `title' which is replaced with the page title. You can also use
just a string for this variable."
:group 'w3m
:type '(radio (editable-list :format "\n%v%i\n"
(radio-button-choice
(const :format "%v " url)
(const :format "%v " title)
string))
string
(const :format "no subject" nil)))
(defvar w3m-mail-user-agent-compose-function-alist
(let ((alist '((gnus-user-agent . w3m-mail-compose-with-mml)
(message-user-agent . w3m-mail-compose-with-mml)
(mew-user-agent . w3m-mail-compose-with-mew)
(vm-user-agent . w3m-mail-compose-with-vm)
(wl-user-agent . w3m-mail-compose-with-semi)))
composer)
(delq nil (mapcar (lambda (agent)
(if (setq composer (cdr (assq agent alist)))
(cons agent composer)))
w3m-mail-user-agents)))
"Alist of mail user agents and functions to compose a mail.
The function will be called with the arguments `source', `url',
`charset', `content-type', `to', `subject', and `other-headers'; where
`source' is a string containing the page source, `url' is the url of
the page, `charset' is a charset that the page uses, `content-type' is
the one such as \"text/html\", and the rest are the same as those of
`compose-mail'.")
(eval-when-compile
(autoload 'message-add-action "message")
(autoload 'mml-insert-empty-tag "mml")
(autoload 'vm-mime-attach-buffer "vm-mime")
(condition-case nil
(require 'mime-edit)
(error
(dolist (symbol '(encode-mime-charset-region
detect-mime-charset-region
std11-wrap-as-quoted-string
mime-find-file-type
mime-edit-insert-tag
mime-edit-define-encoding
mime-encode-region))
(defalias symbol 'ignore)))))
(eval-and-compile
(autoload 'mm-find-mime-charset-region "mm-util")
(autoload 'w3m-mail-compose-with-mew "mew-w3m"
"Compose a mail using Mew." t))
(defun w3m-mail-make-subject ()
"Return a string used for the Subject header."
(cond ((consp w3m-mail-subject)
(w3m-replace-in-string
(w3m-replace-in-string
(mapconcat (lambda (elem)
(cond ((eq elem 'url) w3m-current-url)
((eq elem 'title) w3m-current-title)
((stringp elem) elem)
(t (format "%s" elem))))
w3m-mail-subject
" ")
"[\t\n ]+" " ")
"\\(?:\\` \\| \\'\\)" ""))
((stringp w3m-mail-subject) w3m-mail-subject)
(t "(no subject)")))
(defun w3m-mail-compute-base-url ()
"Compute a base url of the page if it is not provided."
(let ((url (substring w3m-current-url 15)))
(unless (string-match "\\`about:" url)
(save-excursion
(goto-char (point-min))
(let ((case-fold-search t)
start end)
(unless (and (setq start (search-forward "<head>" nil t))
(setq end (search-forward "</head>" nil t))
(progn
(goto-char start)
(re-search-forward "<base[\t\n\r ]+" end t))
(w3m-parse-attributes (href) (> (length href) 0)))
(substring (w3m-expand-url "x" url) 0 -1)))))))
(defun w3m-mail-embed-base-url (source base-url)
"Embed BASE-URL in SOURCE."
(with-temp-buffer
(w3m-static-unless (featurep 'xemacs)
(set-buffer-multibyte t))
(setq case-fold-search t)
(insert source)
(goto-char (point-min))
(while (search-forward "\r\n" nil t)
(replace-match "\n"))
(goto-char (point-min))
(let ((nohead t)
(points (list (point-min) (point-min)))
(margin 0))
(when (re-search-forward "\\(<html>\\)[\t\n ]*" nil t)
(setq points (list (match-end 1) (match-end 0))
margin (current-column)))
(when (re-search-forward "\\(<head>\\)[\t\n ]*" nil t)
(setq nohead nil
points (list (match-end 1) (match-end 0))
margin (current-column)))
(setq margin (make-string margin ? ))
(goto-char (car points))
(apply 'delete-region points)
(if nohead
(insert "\n" margin "<head><base href=\"" base-url "\"></head>\n"
margin)
(insert "\n" margin "<base href=\"" base-url "\">\n" margin)))
(buffer-string)))
(defun w3m-mail-goto-body-and-clear-body ()
"Go to the beginning of the body and clear the body."
(goto-char (point-min))
(if (re-search-forward (concat "^\\(?:"
(regexp-quote mail-header-separator)
"\\)?\n")
nil 'move)
(delete-region (point) (point-max))
(insert (if (bolp) "\n" "\n\n"))))
(defun w3m-mail-position-point (bob)
"Go to empty or bogus header, otherwise the beginning of the body BOB."
(goto-char (point-min))
(when (re-search-forward "^\\(Subject: \\)(no subject)\\|\
^\\([0-9A-Za-z-]+: ?\\)[\t ]*\n\\(?:[\t ]+\n\\)*[^\t ]"
bob 'move)
(goto-char (or (match-end 1) (match-end 2)))))
(defun w3m-mail-compose-with-mml (source url charset content-type
to subject other-headers)
"Compose a mail using MML."
(let ((buffer (generate-new-buffer " *w3m-mail*")))
(with-current-buffer buffer
(w3m-static-unless (featurep 'xemacs)
(set-buffer-multibyte (not (string-match "\\`image/" content-type))))
(insert source))
(if (eq mail-user-agent 'gnus-user-agent)
(progn
(require 'gnus)
(let (gnus-newsgroup-name)
(compose-mail to subject other-headers)))
(compose-mail to subject other-headers))
(message-add-action `(kill-buffer ,buffer) 'exit 'kill 'postpone 'send)
(w3m-mail-goto-body-and-clear-body)
(w3m-mail-position-point
(prog1
(point)
(mml-insert-empty-tag
'part
'type content-type
'buffer (buffer-name buffer)
;; Use the base64 encoding if the body contains non-ASCII text
;; or very long lines which might be broken by MTAs.
'encoding "base64"
'charset (when charset (symbol-name charset))
'disposition "inline"
'description url)))))
;; This function is implemented in mew-w3m.el.
;; (defun w3m-mail-compose-with-mew (source url charset content-type
;; to subject other-headers)
;; "Compose a mail using Mew.")
(defun w3m-mail-compose-with-vm (source url charset content-type
to subject other-headers)
"Compose a mail using VM."
(let* ((coding (and charset (w3m-charset-to-coding-system charset)))
(multibytep (and (not coding)
(or charset
(and (not (string-match "\\`image/"
content-type))
(w3m-static-if (featurep 'xemacs)
(string-match "[^\000-\177]" source)
(multibyte-string-p source))))))
(buffer (generate-new-buffer " *w3m-mail*")))
(with-current-buffer buffer
(w3m-static-unless (featurep 'xemacs)
(set-buffer-multibyte (and (not coding) multibytep)))
(cond (coding
(insert (encode-coding-string source coding)))
(multibytep
(insert source)
(when (and (setq charset (car (mm-find-mime-charset-region
(point-min) (point-max))))
(setq coding (w3m-charset-to-coding-system charset)))
(w3m-static-if (featurep 'xemacs)
(encode-coding-region (point-min) (point-max) coding)
(insert (prog1
(encode-coding-string (buffer-string) coding)
(erase-buffer)
(set-buffer-multibyte nil))))))
(t
(insert source))))
(require 'vm-startup)
(compose-mail to subject other-headers)
(add-to-list 'mail-send-actions `(kill-buffer ,buffer))
(w3m-make-local-hook 'kill-buffer-hook)
(add-hook 'kill-buffer-hook `(lambda nil (kill-buffer ,buffer)) nil t)
(w3m-mail-goto-body-and-clear-body)
(w3m-mail-position-point
(prog1
(point)
(vm-mime-attach-buffer buffer content-type
(when charset (symbol-name charset))
url)))))
(defun w3m-mail-compose-with-semi (source url charset content-type
to subject other-headers)
"Compose a mail using SEMI."
(require 'mime-edit)
(let* ((content-type (and content-type
(split-string (downcase content-type) "/")))
(basename (file-name-nondirectory (w3m-url-strip-query url)))
(filename (cond
((and (string-match "^[\t ]*$" basename)
(equal content-type '("text" "html")))
"index.html")
((string-match "^[\t ]*$" basename)
"dummy")
(t
basename)))
(type (or (nth 0 content-type) "text"))
(subtype (or (nth 1 content-type) "html"))
parameters
(encoding "base64")
(disposition-type "inline")
disposition-params
(guess (mime-find-file-type filename))
(textp (string= type "text")))
(when (and guess
(string= (nth 0 guess) type)
(string= (nth 1 guess) subtype))
(setq parameters (nth 2 guess)
encoding (or (nth 3 guess) encoding)
disposition-type (or (nth 4 guess) disposition-type)
disposition-params (nth 5 guess)))
(compose-mail to subject other-headers)
(w3m-mail-goto-body-and-clear-body)
(let ((parameters-to-string
(lambda (parameters)
(when parameters
(mapconcat
(lambda (parameter)
(concat "; " (car parameter)
"=" (if (eq (cdr parameter) 'file)
(std11-wrap-as-quoted-string filename)
(cdr parameter))))
parameters
""))))
(body (point))
(edit-buffer (current-buffer))
work-buffer)
(with-temp-buffer
(if textp
(progn
(insert source)
(unless charset
(setq charset (detect-mime-charset-region (point-min)
(point-max))))
(when charset
(setq parameters (cons (cons "charset" (symbol-name charset))
parameters))
(encode-mime-charset-region (point-min) (point-max) charset)))
(set-buffer-multibyte nil)
(insert source))
(mime-encode-region (point-min) (point-max) encoding)
(setq work-buffer (current-buffer))
(set-buffer edit-buffer)
(mime-edit-insert-tag
type subtype
(concat (funcall parameters-to-string parameters)
"\nContent-Disposition: " disposition-type
(funcall parameters-to-string disposition-params)
"\nContent-Description: " url))
(mime-edit-define-encoding encoding)
(save-restriction
(narrow-to-region (point) (point))
(insert-buffer-substring work-buffer)
(unless (bolp)
(insert "\n"))
(when (or (string= disposition-type "attachment")
(not (member encoding '("7bit" "8bit" "binary"))))
(add-text-properties
(point-min) (point-max) '(invisible t mime-edit-invisible t)))))
(w3m-mail-position-point body))))
(defun w3m-mail (&optional headers)
"Send a web page as a mail.
By default the subject is generated according to `w3m-mail-subject'.
The optional HEADERS is a list in which each element is a cons of the
symbol of a header name and a string. Here is an example to use this
function:
\(w3m-mail '((To . \"foo@bar\") (Subject . \"The emacs-w3m home page\")))"
(interactive (unless (eq major-mode 'w3m-mode)
(error "`%s' must be invoked from an emacs-w3m buffer"
this-command)))
(let ((composer (cdr (assq mail-user-agent
w3m-mail-user-agent-compose-function-alist)))
;; Don't move the history position.
(w3m-history-reuse-history-elements t)
source base url charset content-type to subject)
(cond
((not composer)
(error "`%s' is not supported (yet) by `w3m-mail'" mail-user-agent))
((not w3m-current-url)
(error "The source for this page is not available"))
((string-match "\\`about://source/" w3m-current-url)
(setq source (buffer-string)
base (w3m-mail-compute-base-url))
(w3m-view-source)
(setq url w3m-current-url
charset (w3m-coding-system-to-charset w3m-current-coding-system)
content-type (or (w3m-arrived-content-type w3m-current-url)
(w3m-content-type w3m-current-url)))
(w3m-view-source))
((string-match "\\`about://header/" w3m-current-url)
(w3m-view-source)
(setq source (buffer-string)
base (w3m-mail-compute-base-url))
(w3m-view-source)
(setq url w3m-current-url
charset (w3m-coding-system-to-charset w3m-current-coding-system)
content-type (or (w3m-arrived-content-type w3m-current-url)
(w3m-content-type w3m-current-url)))
(w3m-view-header))
(t
(setq url w3m-current-url
charset (w3m-coding-system-to-charset w3m-current-coding-system)
content-type (or (w3m-arrived-content-type w3m-current-url)
(w3m-content-type w3m-current-url)))
(w3m-view-source)
(setq source (buffer-string)
base (w3m-mail-compute-base-url))
(w3m-view-source)))
(when (and base (string= "text/html" content-type))
(setq source (w3m-mail-embed-base-url source base)))
(setq to (or (assq 'To headers) (assq 'to headers))
subject (or (assq 'Subject headers) (assq 'subject headers)))
(when (or to subject)
(setq headers (delq to (delq subject (copy-sequence headers)))
to (cdr to)
subject (cdr subject)))
(unless subject
(setq subject (let ((w3m-current-url url)) (w3m-mail-make-subject))))
(funcall composer source url charset content-type to subject headers)))
;;; w3m-mail.el ends here
|