--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/lisp/w3/url-mail.el	Mon Aug 13 08:48:42 2007 +0200
@@ -0,0 +1,194 @@
+;;; url-mail.el --- Mail Uniform Resource Locator retrieval code
+;; Author: wmperry
+;; Created: 1996/10/21 21:27:36
+;; Version: 1.4
+;; Keywords: comm, data, processes
+
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+;;; Copyright (c) 1993-1996 by William M. Perry (wmperry@cs.indiana.edu)
+;;; Copyright (c) 1996 Free Software Foundation, Inc.
+;;;
+;;; This file is not part of GNU Emacs, but the same permissions apply.
+;;;
+;;; 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 2, 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; see the file COPYING.  If not, write to the
+;;; Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+;;; Boston, MA 02111-1307, USA.
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+
+(require 'url-vars)
+(require 'url-parse)
+
+(defmacro url-mailserver-skip-chunk ()
+  (` (while (and (not (looking-at "/"))
+		 (not (eobp)))
+       (forward-sexp 1))))
+
+(defun url-mail (&rest args)
+  (interactive "P")
+  (or (apply 'mail args)
+      (error "Mail aborted")))
+
+(defun url-mail-goto-field (field)
+  (if (not field)
+      (goto-char (point-max))
+    (let ((dest nil)
+	  (lim nil)
+	  (case-fold-search t))
+      (save-excursion
+	(goto-char (point-min))
+	(if (re-search-forward (regexp-quote mail-header-separator) nil t)
+	    (setq lim (match-beginning 0)))
+	(goto-char (point-min))
+	(if (re-search-forward (concat "^" (regexp-quote field) ":") lim t)
+	    (setq dest (match-beginning 0))))
+      (if dest
+	  (progn
+	    (goto-char dest)
+	    (end-of-line))
+	(goto-char lim)
+	(insert (capitalize field) ": ")
+	(save-excursion
+	  (insert "\n"))))))
+  
+(defun url-mailto (url)
+  ;; Send mail to someone
+  (if (not (string-match "mailto:/*\\(.*\\)" url))
+      (error "Malformed mailto link: %s" url))
+  (setq url (substring url (match-beginning 1) nil))
+  (if (get-buffer url-working-buffer)
+      (kill-buffer url-working-buffer))
+  (let (to args source-url subject func)
+    (if (string-match (regexp-quote "?") url)
+	(setq to (url-unhex-string (substring url 0 (match-beginning 0)))
+	      args (url-parse-query-string
+		    (substring url (match-end 0) nil) t))
+      (setq to (url-unhex-string url)))
+    (setq source-url (url-view-url t))
+    (if (and url-request-data (not (assoc "subject" args)))
+	(setq args (cons (list "subject"
+			       (concat "Automatic submission from "
+				       url-package-name "/"
+				       url-package-version)) args)))
+    (if (and source-url (not (assoc "x-url-from" args)))
+	(setq args (cons (list "x-url-from" source-url) args)))
+    (setq args (cons (list "to" to) args)
+	  subject (cdr-safe (assoc "subject" args)))
+    (if (fboundp url-mail-command) (funcall url-mail-command) (mail))
+    (while args
+      (url-mail-goto-field (caar args))
+      (setq func (intern-soft (concat "mail-" (caar args))))
+      (insert (mapconcat 'identity (cdar args) ", "))
+      (setq args (cdr args)))
+    (url-mail-goto-field "X-Mailer")
+    (insert url-package-name "/" url-package-version)
+    (if (not url-request-data)
+	(if subject
+	    (url-mail-goto-field nil)
+	  (url-mail-goto-field "subject"))
+      (if url-request-extra-headers
+	  (mapconcat
+	   (function
+	    (lambda (x)
+	      (url-mail-goto-field (car x))
+	      (insert (cdr x))))
+	   url-request-extra-headers ""))
+      (goto-char (point-max))
+      (insert url-request-data)
+      (mail-send-and-exit nil))))
+
+(defun url-mailserver (url)
+  ;; Send mail to someone, much cooler/functional than mailto
+  (if (get-buffer url-working-buffer)
+      (kill-buffer url-working-buffer))
+  (set-buffer (get-buffer-create " *mailserver*"))
+  (erase-buffer)
+  (insert url)
+  (goto-char (point-min))
+  (set-syntax-table url-mailserver-syntax-table)
+  (skip-chars-forward "^:")		; Get past mailserver
+  (skip-chars-forward ":")		; Get past :
+  ;; Handle some ugly malformed URLs, but bitch about it.
+  (if (looking-at "/")
+      (progn
+	(url-warn 'url "Invalid mailserver URL... attempting to cope.")
+	(skip-chars-forward "/")))
+  
+  (let ((save-pos (point))
+	(url (url-view-url t))
+	(rfc822-addr nil)
+	(subject nil)
+	(body nil))
+    (url-mailserver-skip-chunk)
+    (setq rfc822-addr (buffer-substring save-pos (point)))
+    (forward-char 1)
+    (setq save-pos (point))
+    (url-mailserver-skip-chunk)
+    (setq subject (buffer-substring save-pos (point)))
+    (if (not (eobp))
+	(progn				; There is some text to use
+	  (forward-char 1)		; as the body of the message
+	  (setq body (buffer-substring (point) (point-max)))))
+    (if (fboundp url-mail-command) (funcall url-mail-command) (mail))
+    (url-mail-goto-field "to")
+    (insert rfc822-addr)
+    (if (and url (not (string= url "")))
+	(progn
+	  (url-mail-goto-field "X-URL-From")
+	  (insert url)))
+    (url-mail-goto-field "X-Mailer")
+    (insert url-package-name "/" url-package-version)
+    (url-mail-goto-field "subject")
+    ;; Massage the subject from URLEncoded garbage
+    ;; Note that we do not allow any newlines in the subject,
+    ;; as recommended by the Internet Draft on the mailserver
+    ;; URL - this means the document author cannot spoof additional
+    ;; header lines, which is a 'Good Thing'
+    (if subject
+	(progn
+	  (setq subject (url-unhex-string subject))
+	  (let ((x (1- (length subject)))
+		(y 0))
+	    (while (<= y x)
+	      (if (memq (aref subject y) '(?\r ?\n))
+		  (aset subject y ? ))
+	      (setq y (1+ y))))))
+    (insert subject)
+    (if url-request-extra-headers
+	(progn
+	  (goto-char (point-min))
+	  (insert
+	   (mapconcat
+	    (function
+	     (lambda (x)
+	       (url-mail-goto-field (car x))
+	       (insert (cdr x))))
+	    url-request-extra-headers ""))))
+    (goto-char (point-max))
+    ;; Massage the body from URLEncoded garbage
+    (if body
+	(let ((x (1- (length body)))
+	      (y 0))
+	  (while (<= y x)
+	    (if (= (aref body y) ?/)
+		(aset body y ?\n))
+	    (setq y (1+ y)))
+	  (setq body (url-unhex-string body))))
+    (and body (insert body))
+    (and url-request-data (insert url-request-data))
+    (if (and (or body url-request-data)
+	     (funcall url-confirmation-func
+		      (concat "Send message to " rfc822-addr "? ")))
+	(mail-send-and-exit nil))))    
+
+(provide 'url-mail)