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emacs/lisp/url/url-mailto.el
Paul Eggert bc511a64f6 Prefer HTTPS to FTP and HTTP in documentation
Most of this change is to boilerplate commentary such as license URLs.
This change was prompted by ftp://ftp.gnu.org's going-away party,
planned for November.  Change these FTP URLs to https://ftp.gnu.org
instead.  Make similar changes for URLs to other organizations moving
away from FTP.  Also, change HTTP to HTTPS for URLs to gnu.org and
fsf.org when this works, as this will further help defend against
man-in-the-middle attacks (for this part I omitted the MS-DOS and
MS-Windows sources and the test tarballs to keep the workload down).
HTTPS is not fully working to lists.gnu.org so I left those URLs alone
for now.
2017-09-13 15:54:37 -07:00

145 lines
4.6 KiB
EmacsLisp

;;; url-mail.el --- Mail Uniform Resource Locator retrieval code
;; Copyright (C) 1996-1999, 2004-2017 Free Software Foundation, Inc.
;; Keywords: comm, data, processes
;; 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 <https://www.gnu.org/licenses/>.
;;; Commentary:
;;; Code:
(require 'url-vars)
(require 'url-parse)
(require 'url-util)
;;;###autoload
(defun url-mail (&rest args)
(interactive "P")
(if (fboundp 'message-mail)
(apply 'message-mail args)
(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"))))))
(declare-function mail-send-and-exit "sendmail")
;;;###autoload
(defun url-mailto (url)
"Handle the mailto: URL syntax."
(if (url-user url)
;; malformed mailto URL (mailto://wmperry@gnu.org) instead of
;; mailto:wmperry@gnu.org
(setf (url-filename url) (concat (url-user url) "@" (url-filename url))))
(setq url (url-filename url))
(let (to args source-url subject func headers-start)
(if (string-match (regexp-quote "?") url)
(setq headers-start (match-end 0)
to (url-unhex-string (substring url 0 (match-beginning 0)))
args (url-parse-query-string
(substring url headers-start nil) t 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)))
(let ((tolist (assoc "to" args)))
(if tolist
(if (not (string= to ""))
(setcdr tolist
(list (concat to ", " (cadr tolist)))))
(setq args (cons (list "to" to) args))))
(setq subject (cdr-safe (assoc "subject" args)))
(if (eq url-mail-command 'compose-mail)
(compose-mail nil nil nil 'new)
(if (eq url-mail-command 'mail)
(mail 'new)
(funcall url-mail-command)))
(while args
(if (string= (caar args) "body")
(progn
(goto-char (point-min))
(or (search-forward (concat "\n" mail-header-separator "\n") nil t)
(goto-char (point-max)))
(insert (mapconcat
#'(lambda (string)
(replace-regexp-in-string "\r\n" "\n" string))
(cdar args) "\n")))
(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 "User-Agent")
;; (insert url-package-name "/" url-package-version " URL/" url-version)
(if (not url-request-data)
(progn
(set-buffer-modified-p nil)
(if subject
(url-mail-goto-field nil)
(url-mail-goto-field "subject")))
(if url-request-extra-headers
(mapconcat
(lambda (x)
(url-mail-goto-field (car x))
(insert (cdr x)))
url-request-extra-headers ""))
(goto-char (point-max))
(insert url-request-data)
;; It seems Microsoft-ish to send without warning.
;; Fixme: presumably this should depend on a privacy setting.
(if (y-or-n-p "Send this auto-generated mail? ")
(let ((buffer (current-buffer)))
(cond ((eq url-mail-command 'compose-mail)
(funcall (get mail-user-agent 'sendfunc) nil))
;; otherwise, we can't be sure
((fboundp 'message-send-and-exit)
(message-send-and-exit))
(t (mail-send-and-exit nil)))
(kill-buffer buffer))))
nil))
(provide 'url-mailto)
;;; url-mailto.el ends here