lisp/url/url-mailto.el

   1 ;;; url-mail.el --- Mail Uniform Resource Locator retrieval code
   2
   3 ;; Copyright (C) 1996, 1997, 1998, 1999, 2004,
   4 ;;   2005, 2006, 2007, 2008, 2009, 2010, 2011 Free Software Foundation, Inc.
   5
   6 ;; Keywords: comm, data, processes
   7
   8 ;; This file is part of GNU Emacs.
   9 ;;
  10 ;; GNU Emacs is free software: you can redistribute it and/or modify
  11 ;; it under the terms of the GNU General Public License as published by
  12 ;; the Free Software Foundation, either version 3 of the License, or
  13 ;; (at your option) any later version.
  14
  15 ;; GNU Emacs is distributed in the hope that it will be useful,
  16 ;; but WITHOUT ANY WARRANTY; without even the implied warranty of
  17 ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  18 ;; GNU General Public License for more details.
  19
  20 ;; You should have received a copy of the GNU General Public License
  21 ;; along with GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.
  22
  23 ;;; Commentary:
  24
  25 ;;; Code:
  26
  27 (require 'url-vars)
  28 (require 'url-parse)
  29 (require 'url-util)
  30
  31 ;;;###autoload
  32 (defun url-mail (&rest args)
  33   (interactive "P")
  34   (if (fboundp 'message-mail)
  35       (apply 'message-mail args)
  36     (or (apply 'mail args)
  37         (error "Mail aborted"))))
  38
  39 (defun url-mail-goto-field (field)
  40   (if (not field)
  41       (goto-char (point-max))
  42     (let ((dest nil)
  43           (lim nil)
  44           (case-fold-search t))
  45       (save-excursion
  46         (goto-char (point-min))
  47         (if (re-search-forward (regexp-quote mail-header-separator) nil t)
  48             (setq lim (match-beginning 0)))
  49         (goto-char (point-min))
  50         (if (re-search-forward (concat "^" (regexp-quote field) ":") lim t)
  51             (setq dest (match-beginning 0))))
  52       (if dest
  53           (progn
  54             (goto-char dest)
  55             (end-of-line))
  56         (goto-char lim)
  57         (insert (capitalize field) ": ")
  58         (save-excursion
  59           (insert "\n"))))))
  60
  61 (declare-function mail-send-and-exit "sendmail")
  62
  63 ;;;###autoload
  64 (defun url-mailto (url)
  65   "Handle the mailto: URL syntax."
  66   (if (url-user url)
  67       ;; malformed mailto URL (mailto://wmperry@gnu.org) instead of
  68       ;; mailto:wmperry@gnu.org
  69       (setf (url-filename url) (concat (url-user url) "@" (url-filename url))))
  70   (setq url (url-filename url))
  71   (let (to args source-url subject func headers-start)
  72     (if (string-match (regexp-quote "?") url)
  73         (setq headers-start (match-end 0)
  74               to (url-unhex-string (substring url 0 (match-beginning 0)))
  75               args (url-parse-query-string
  76                     (substring url headers-start nil) t t))
  77       (setq to (url-unhex-string url)))
  78     (setq source-url (url-view-url t))
  79     (if (and url-request-data (not (assoc "subject" args)))
  80         (setq args (cons (list "subject"
  81                                (concat "Automatic submission from "
  82                                        url-package-name "/"
  83                                        url-package-version)) args)))
  84     (if (and source-url (not (assoc "x-url-from" args)))
  85         (setq args (cons (list "x-url-from" source-url) args)))
  86
  87     (let ((tolist (assoc "to" args)))
  88       (if tolist
  89           (if (not (string= to ""))
  90               (setcdr tolist
  91                       (list (concat to ", " (cadr tolist)))))
  92         (setq args (cons (list "to" to) args))))
  93
  94     (setq subject (cdr-safe (assoc "subject" args)))
  95     (if (eq url-mail-command 'compose-mail)
  96         (compose-mail nil nil nil 'new)
  97       (if (eq url-mail-command 'mail)
  98           (mail 'new)
  99         (funcall url-mail-command)))
 100     (while args
 101       (if (string= (caar args) "body")
 102           (progn
 103             (goto-char (point-min))
 104             (or (search-forward (concat "\n" mail-header-separator "\n") nil t)
 105                 (goto-char (point-max)))
 106             (insert (mapconcat
 107                      #'(lambda (string)
 108                          (replace-regexp-in-string "\r\n" "\n" string))
 109                      (cdar args) "\n")))
 110         (url-mail-goto-field (caar args))
 111         (setq func (intern-soft (concat "mail-" (caar args))))
 112         (insert (mapconcat 'identity (cdar args) ", ")))
 113       (setq args (cdr args)))
 114     ;; (url-mail-goto-field "User-Agent")
 115 ;;     (insert url-package-name "/" url-package-version " URL/" url-version)
 116     (if (not url-request-data)
 117         (progn
 118           (set-buffer-modified-p nil)
 119           (if subject
 120               (url-mail-goto-field nil)
 121             (url-mail-goto-field "subject")))
 122       (if url-request-extra-headers
 123           (mapconcat
 124            (lambda (x)
 125              (url-mail-goto-field (car x))
 126              (insert (cdr x)))
 127            url-request-extra-headers ""))
 128       (goto-char (point-max))
 129       (insert url-request-data)
 130       ;; It seems Microsoft-ish to send without warning.
 131       ;; Fixme: presumably this should depend on a privacy setting.
 132       (if (y-or-n-p "Send this auto-generated mail? ")
 133           (let ((buffer (current-buffer)))
 134             (cond ((eq url-mail-command 'compose-mail)
 135                    (funcall (get mail-user-agent 'sendfunc) nil))
 136                   ;; otherwise, we can't be sure
 137                   ((fboundp 'message-send-and-exit)
 138                    (message-send-and-exit))
 139                   (t (mail-send-and-exit nil)))
 140             (kill-buffer buffer))))
 141     nil))
 142
 143 (provide 'url-mailto)
 144
 145 ;; arch-tag: 7b7ad52e-8760-497b-9444-75fae14e34c5
 146 ;;; url-mailto.el ends here