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687 lines
21 KiB
EmacsLisp
687 lines
21 KiB
EmacsLisp
;;; smtpmail.el --- simple SMTP protocol (RFC 821) for sending mail
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;; Copyright (C) 1995, 1996 Free Software Foundation, Inc.
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;; Author: Tomoji Kagatani <kagatani@rbc.ncl.omron.co.jp>
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;; Maintainer: Brian D. Carlstrom <bdc@ai.mit.edu>
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;; ESMTP support: Simon Leinen <simon@switch.ch>
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;; Keywords: mail
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;; This file is part of GNU Emacs.
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;; GNU Emacs is free software; you can redistribute it and/or modify
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;; it under the terms of the GNU General Public License as published by
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;; the Free Software Foundation; either version 2, or (at your option)
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;; any later version.
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;; GNU Emacs is distributed in the hope that it will be useful,
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;; but WITHOUT ANY WARRANTY; without even the implied warranty of
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;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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;; GNU General Public License for more details.
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;; You should have received a copy of the GNU General Public License
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;; along with GNU Emacs; see the file COPYING. If not, write to the
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;; Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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;; Boston, MA 02111-1307, USA.
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;;; Commentary:
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;; Send Mail to smtp host from smtpmail temp buffer.
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;; Please add these lines in your .emacs(_emacs) or use customize.
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;;
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;;(setq send-mail-function 'smtpmail-send-it) ; if you use `mail'
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;;(setq message-send-mail-function 'smtpmail-send-it) ; if you use `message'
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;;(setq smtpmail-default-smtp-server "YOUR SMTP HOST")
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;;(setq smtpmail-local-domain "YOUR DOMAIN NAME")
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;;(setq smtpmail-debug-info t) ; only to debug problems
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;; To queue mail, set smtpmail-queue-mail to t and use
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;; smtpmail-send-queued-mail to send.
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;;; Code:
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(require 'sendmail)
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(require 'time-stamp)
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;;;
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(defgroup smtpmail nil
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"SMTP protocol for sending mail."
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:group 'mail)
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(defcustom smtpmail-default-smtp-server nil
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"*Specify default SMTP server."
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:type '(choice (const nil) string)
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:group 'smtpmail)
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(defcustom smtpmail-smtp-server
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(or (getenv "SMTPSERVER") smtpmail-default-smtp-server)
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"*The name of the host running SMTP server."
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:type '(choice (const nil) string)
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:group 'smtpmail)
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(defcustom smtpmail-smtp-service 25
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"*SMTP service port number. smtp or 25 ."
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:type 'integer
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:group 'smtpmail)
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(defcustom smtpmail-local-domain nil
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"*Local domain name without a host name.
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If the function (system-name) returns the full internet address,
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don't define this value."
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:type '(choice (const nil) string)
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:group 'smtpmail)
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(defcustom smtpmail-debug-info nil
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"*smtpmail debug info printout. messages and process buffer."
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:type 'boolean
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:group 'smtpmail)
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(defcustom smtpmail-code-conv-from nil ;; *junet*
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"*smtpmail code convert from this code to *internal*..for tiny-mime.."
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:type 'boolean
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:group 'smtpmail)
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(defcustom smtpmail-queue-mail nil
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"*Specify if mail is queued (if t) or sent immediately (if nil).
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If queued, it is stored in the directory `smtpmail-queue-dir'
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and sent with `smtpmail-send-queued-mail'."
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:type 'boolean
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:group 'smtpmail)
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(defcustom smtpmail-queue-dir "~/Mail/queued-mail/"
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"*Directory where `smtpmail.el' stores queued mail."
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:type 'directory
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:group 'smtpmail)
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(defvar smtpmail-queue-index-file "index"
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"File name of queued mail index,
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This is relative to `smtpmail-queue-dir'.")
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(defvar smtpmail-queue-index (concat smtpmail-queue-dir
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smtpmail-queue-index-file))
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;;;
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;;;
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;;;
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;;;###autoload
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(defun smtpmail-send-it ()
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(require 'mail-utils)
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(let ((errbuf (if mail-interactive
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(generate-new-buffer " smtpmail errors")
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0))
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(tembuf (generate-new-buffer " smtpmail temp"))
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(case-fold-search nil)
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delimline
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(mailbuf (current-buffer)))
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(unwind-protect
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(save-excursion
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(set-buffer tembuf)
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(erase-buffer)
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(insert-buffer-substring mailbuf)
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(goto-char (point-max))
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;; require one newline at the end.
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(or (= (preceding-char) ?\n)
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(insert ?\n))
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;; Change header-delimiter to be what sendmail expects.
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(mail-sendmail-undelimit-header)
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(setq delimline (point-marker))
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;; (sendmail-synch-aliases)
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(if mail-aliases
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(expand-mail-aliases (point-min) delimline))
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(goto-char (point-min))
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;; ignore any blank lines in the header
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(while (and (re-search-forward "\n\n\n*" delimline t)
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(< (point) delimline))
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(replace-match "\n"))
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(let ((case-fold-search t))
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;; We used to process Resent-... headers here,
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;; but it was not done properly, and the job
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;; is done correctly in smtpmail-deduce-address-list.
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;; Don't send out a blank subject line
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(goto-char (point-min))
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(if (re-search-forward "^Subject:\\([ \t]*\n\\)+\\b" delimline t)
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(replace-match "")
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;; This one matches a Subject just before the header delimiter.
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(if (and (re-search-forward "^Subject:\\([ \t]*\n\\)+" delimline t)
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(= (match-end 0) delimline))
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(replace-match "")))
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;; Put the "From:" field in unless for some odd reason
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;; they put one in themselves.
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(goto-char (point-min))
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(if (not (re-search-forward "^From:" delimline t))
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(let* ((login user-mail-address)
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(fullname (user-full-name)))
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(cond ((eq mail-from-style 'angles)
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(insert "From: " fullname)
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(let ((fullname-start (+ (point-min) 6))
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(fullname-end (point-marker)))
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(goto-char fullname-start)
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;; Look for a character that cannot appear unquoted
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;; according to RFC 822.
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(if (re-search-forward "[^- !#-'*+/-9=?A-Z^-~]"
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fullname-end 1)
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(progn
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;; Quote fullname, escaping specials.
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(goto-char fullname-start)
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(insert "\"")
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(while (re-search-forward "[\"\\]"
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fullname-end 1)
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(replace-match "\\\\\\&" t))
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(insert "\""))))
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(insert " <" login ">\n"))
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((eq mail-from-style 'parens)
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(insert "From: " login " (")
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(let ((fullname-start (point)))
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(insert fullname)
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(let ((fullname-end (point-marker)))
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(goto-char fullname-start)
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;; RFC 822 says \ and nonmatching parentheses
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;; must be escaped in comments.
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;; Escape every instance of ()\ ...
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(while (re-search-forward "[()\\]" fullname-end 1)
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(replace-match "\\\\\\&" t))
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;; ... then undo escaping of matching parentheses,
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;; including matching nested parentheses.
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(goto-char fullname-start)
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(while (re-search-forward
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"\\(\\=\\|[^\\]\\(\\\\\\\\\\)*\\)\\\\(\\(\\([^\\]\\|\\\\\\\\\\)*\\)\\\\)"
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fullname-end 1)
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(replace-match "\\1(\\3)" t)
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(goto-char fullname-start))))
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(insert ")\n"))
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((null mail-from-style)
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(insert "From: " login "\n")))))
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;; Insert an extra newline if we need it to work around
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;; Sun's bug that swallows newlines.
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(goto-char (1+ delimline))
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(if (eval mail-mailer-swallows-blank-line)
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(newline))
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;; Find and handle any FCC fields.
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(goto-char (point-min))
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(if (re-search-forward "^FCC:" delimline t)
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(mail-do-fcc delimline))
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(if mail-interactive
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(save-excursion
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(set-buffer errbuf)
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(erase-buffer))))
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;;
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;;
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;;
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(setq smtpmail-address-buffer (generate-new-buffer "*smtp-mail*"))
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(setq smtpmail-recipient-address-list
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(smtpmail-deduce-address-list tembuf (point-min) delimline))
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(kill-buffer smtpmail-address-buffer)
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(smtpmail-do-bcc delimline)
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; Send or queue
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(if (not smtpmail-queue-mail)
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(if (not (null smtpmail-recipient-address-list))
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(if (not (smtpmail-via-smtp
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smtpmail-recipient-address-list tembuf))
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(error "Sending failed; SMTP protocol error"))
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(error "Sending failed; no recipients"))
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(let* ((file-data (concat
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smtpmail-queue-dir
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(concat (time-stamp-yyyy-mm-dd)
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"_" (time-stamp-hh:mm:ss))))
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(file-elisp (concat file-data ".el"))
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(buffer-data (create-file-buffer file-data))
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(buffer-elisp (create-file-buffer file-elisp))
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(buffer-scratch "*queue-mail*"))
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(save-excursion
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(set-buffer buffer-data)
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(erase-buffer)
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(insert-buffer tembuf)
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(write-file file-data)
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(set-buffer buffer-elisp)
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(erase-buffer)
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(insert (concat
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"(setq smtpmail-recipient-address-list '"
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(prin1-to-string smtpmail-recipient-address-list)
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")\n"))
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(write-file file-elisp)
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(set-buffer (generate-new-buffer buffer-scratch))
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(insert (concat file-data "\n"))
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(append-to-file (point-min)
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(point-max)
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smtpmail-queue-index)
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)
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(kill-buffer buffer-scratch)
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(kill-buffer buffer-data)
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(kill-buffer buffer-elisp))))
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(kill-buffer tembuf)
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(if (bufferp errbuf)
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(kill-buffer errbuf)))))
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(defun smtpmail-send-queued-mail ()
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"Send mail that was queued as a result of setting `smtpmail-queue-mail'."
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(interactive)
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;;; Get index, get first mail, send it, get second mail, etc...
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(let ((buffer-index (find-file-noselect smtpmail-queue-index))
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(file-msg "")
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(tembuf nil))
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(save-excursion
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(set-buffer buffer-index)
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(beginning-of-buffer)
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(while (not (eobp))
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(setq file-msg (buffer-substring (point) (save-excursion
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(end-of-line)
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(point))))
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(load file-msg)
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(setq tembuf (find-file-noselect file-msg))
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(if (not (null smtpmail-recipient-address-list))
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(if (not (smtpmail-via-smtp smtpmail-recipient-address-list
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tembuf))
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(error "Sending failed; SMTP protocol error"))
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(error "Sending failed; no recipients"))
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(delete-file file-msg)
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(delete-file (concat file-msg ".el"))
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(kill-buffer tembuf)
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(kill-line 1))
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(set-buffer buffer-index)
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(save-buffer smtpmail-queue-index)
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(kill-buffer buffer-index)
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)))
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;(defun smtpmail-via-smtp (host,port,sender,destination,smtpmail-text-buffer)
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(defun smtpmail-fqdn ()
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(if smtpmail-local-domain
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(concat (system-name) "." smtpmail-local-domain)
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(system-name)))
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(defun smtpmail-via-smtp (recipient smtpmail-text-buffer)
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(let ((process nil)
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(host (or smtpmail-smtp-server
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(error "`smtpmail-smtp-server' not defined")))
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(port smtpmail-smtp-service)
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response-code
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greeting
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process-buffer
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(supported-extensions '()))
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(unwind-protect
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(catch 'done
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;; get or create the trace buffer
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(setq process-buffer
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(get-buffer-create (format "*trace of SMTP session to %s*" host)))
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;; clear the trace buffer of old output
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(save-excursion
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(set-buffer process-buffer)
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(erase-buffer))
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;; open the connection to the server
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(setq process (open-network-stream "SMTP" process-buffer host port))
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(and (null process) (throw 'done nil))
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;; set the send-filter
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(set-process-filter process 'smtpmail-process-filter)
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(save-excursion
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(set-buffer process-buffer)
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(set-buffer-process-coding-system 'raw-text-unix 'raw-text-unix)
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(make-local-variable 'smtpmail-read-point)
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(setq smtpmail-read-point (point-min))
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(if (or (null (car (setq greeting (smtpmail-read-response process))))
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(not (integerp (car greeting)))
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(>= (car greeting) 400))
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(throw 'done nil)
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)
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;; EHLO
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(smtpmail-send-command process (format "EHLO %s" (smtpmail-fqdn)))
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(if (or (null (car (setq response-code (smtpmail-read-response process))))
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(not (integerp (car response-code)))
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(>= (car response-code) 400))
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(progn
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;; HELO
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(smtpmail-send-command process (format "HELO %s" (smtpmail-fqdn)))
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(if (or (null (car (setq response-code (smtpmail-read-response process))))
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(not (integerp (car response-code)))
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(>= (car response-code) 400))
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(throw 'done nil)))
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(let ((extension-lines (cdr (cdr response-code))))
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(while extension-lines
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(let ((name (intern (downcase (car (split-string (substring (car extension-lines) 4) "[ ]"))))))
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(and name
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(cond ((memq name '(verb xvrb 8bitmime onex xone
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expn size dsn etrn
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help xusr))
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(setq supported-extensions
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(cons name supported-extensions)))
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(t (message "unknown extension %s"
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name)))))
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(setq extension-lines (cdr extension-lines)))))
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(if (or (member 'onex supported-extensions)
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(member 'xone supported-extensions))
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(progn
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(smtpmail-send-command process (format "ONEX"))
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(if (or (null (car (setq response-code (smtpmail-read-response process))))
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(not (integerp (car response-code)))
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(>= (car response-code) 400))
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(throw 'done nil))))
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(if (and smtpmail-debug-info
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(or (member 'verb supported-extensions)
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(member 'xvrb supported-extensions)))
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(progn
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(smtpmail-send-command process (format "VERB"))
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(if (or (null (car (setq response-code (smtpmail-read-response process))))
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(not (integerp (car response-code)))
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(>= (car response-code) 400))
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(throw 'done nil))))
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(if (member 'xusr supported-extensions)
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(progn
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(smtpmail-send-command process (format "XUSR"))
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(if (or (null (car (setq response-code (smtpmail-read-response process))))
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(not (integerp (car response-code)))
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(>= (car response-code) 400))
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(throw 'done nil))))
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;; MAIL FROM: <sender>
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(let ((size-part
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(if (member 'size supported-extensions)
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(format " SIZE=%d"
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(save-excursion
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(set-buffer smtpmail-text-buffer)
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;; size estimate:
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(+ (- (point-max) (point-min))
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;; Add one byte for each change-of-line
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;; because or CR-LF representation:
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(count-lines (point-min) (point-max))
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;; For some reason, an empty line is
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;; added to the message. Maybe this
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;; is a bug, but it can't hurt to add
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;; those two bytes anyway:
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2)))
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""))
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(body-part
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(if (member '8bitmime supported-extensions)
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;; FIXME:
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;; Code should be added here that transforms
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;; the contents of the message buffer into
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;; something the receiving SMTP can handle.
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;; For a receiver that supports 8BITMIME, this
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;; may mean converting BINARY to BASE64, or
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;; adding Content-Transfer-Encoding and the
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;; other MIME headers. The code should also
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;; return an indication of what encoding the
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;; message buffer is now, i.e. ASCII or
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;; 8BITMIME.
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(if nil
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" BODY=8BITMIME"
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"")
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"")))
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; (smtpmail-send-command process (format "MAIL FROM:%s@%s" (user-login-name) (smtpmail-fqdn)))
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(smtpmail-send-command process (format "MAIL FROM: <%s>%s%s"
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user-mail-address
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size-part
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body-part))
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(if (or (null (car (setq response-code (smtpmail-read-response process))))
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(not (integerp (car response-code)))
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(>= (car response-code) 400))
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(throw 'done nil)
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))
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;; RCPT TO: <recipient>
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(let ((n 0))
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(while (not (null (nth n recipient)))
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(smtpmail-send-command process (format "RCPT TO: <%s>" (nth n recipient)))
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(setq n (1+ n))
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(setq response-code (smtpmail-read-response process))
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(if (or (null (car response-code))
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(not (integerp (car response-code)))
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(>= (car response-code) 400))
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(throw 'done nil)
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)
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))
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;; DATA
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(smtpmail-send-command process "DATA")
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(if (or (null (car (setq response-code (smtpmail-read-response process))))
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(not (integerp (car response-code)))
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(>= (car response-code) 400))
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(throw 'done nil)
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)
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;; Mail contents
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(smtpmail-send-data process smtpmail-text-buffer)
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;;DATA end "."
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(smtpmail-send-command process ".")
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(if (or (null (car (setq response-code (smtpmail-read-response process))))
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(not (integerp (car response-code)))
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(>= (car response-code) 400))
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(throw 'done nil)
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|
)
|
|
|
|
;;QUIT
|
|
; (smtpmail-send-command process "QUIT")
|
|
; (and (null (car (smtpmail-read-response process)))
|
|
; (throw 'done nil))
|
|
t ))
|
|
(if process
|
|
(save-excursion
|
|
(set-buffer (process-buffer process))
|
|
(smtpmail-send-command process "QUIT")
|
|
(smtpmail-read-response process)
|
|
|
|
; (if (or (null (car (setq response-code (smtpmail-read-response process))))
|
|
; (not (integerp (car response-code)))
|
|
; (>= (car response-code) 400))
|
|
; (throw 'done nil)
|
|
; )
|
|
(delete-process process))))))
|
|
|
|
|
|
(defun smtpmail-process-filter (process output)
|
|
(save-excursion
|
|
(set-buffer (process-buffer process))
|
|
(goto-char (point-max))
|
|
(insert output)))
|
|
|
|
(defun smtpmail-read-response (process)
|
|
(let ((case-fold-search nil)
|
|
(response-strings nil)
|
|
(response-continue t)
|
|
(return-value '(nil ()))
|
|
match-end)
|
|
|
|
(while response-continue
|
|
(goto-char smtpmail-read-point)
|
|
(while (not (search-forward "\r\n" nil t))
|
|
(accept-process-output process)
|
|
(goto-char smtpmail-read-point))
|
|
|
|
(setq match-end (point))
|
|
(setq response-strings
|
|
(cons (buffer-substring smtpmail-read-point (- match-end 2))
|
|
response-strings))
|
|
|
|
(goto-char smtpmail-read-point)
|
|
(if (looking-at "[0-9]+ ")
|
|
(let ((begin (match-beginning 0))
|
|
(end (match-end 0)))
|
|
(if smtpmail-debug-info
|
|
(message "%s" (car response-strings)))
|
|
|
|
(setq smtpmail-read-point match-end)
|
|
|
|
;; ignore lines that start with "0"
|
|
(if (looking-at "0[0-9]+ ")
|
|
nil
|
|
(setq response-continue nil)
|
|
(setq return-value
|
|
(cons (string-to-int
|
|
(buffer-substring begin end))
|
|
(nreverse response-strings)))))
|
|
|
|
(if (looking-at "[0-9]+-")
|
|
(progn (if smtpmail-debug-info
|
|
(message "%s" (car response-strings)))
|
|
(setq smtpmail-read-point match-end)
|
|
(setq response-continue t))
|
|
(progn
|
|
(setq smtpmail-read-point match-end)
|
|
(setq response-continue nil)
|
|
(setq return-value
|
|
(cons nil (nreverse response-strings)))
|
|
)
|
|
)))
|
|
(setq smtpmail-read-point match-end)
|
|
return-value))
|
|
|
|
|
|
(defun smtpmail-send-command (process command)
|
|
(goto-char (point-max))
|
|
(if (= (aref command 0) ?P)
|
|
(insert "PASS <omitted>\r\n")
|
|
(insert command "\r\n"))
|
|
(setq smtpmail-read-point (point))
|
|
(process-send-string process command)
|
|
(process-send-string process "\r\n"))
|
|
|
|
(defun smtpmail-send-data-1 (process data)
|
|
(goto-char (point-max))
|
|
|
|
(if (not (null smtpmail-code-conv-from))
|
|
(setq data (code-convert-string data smtpmail-code-conv-from *internal*)))
|
|
|
|
(if smtpmail-debug-info
|
|
(insert data "\r\n"))
|
|
|
|
(setq smtpmail-read-point (point))
|
|
;; Escape "." at start of a line
|
|
(if (eq (string-to-char data) ?.)
|
|
(process-send-string process "."))
|
|
(process-send-string process data)
|
|
(process-send-string process "\r\n")
|
|
)
|
|
|
|
(defun smtpmail-send-data (process buffer)
|
|
(let
|
|
((data-continue t)
|
|
(sending-data nil)
|
|
this-line
|
|
this-line-end)
|
|
|
|
(save-excursion
|
|
(set-buffer buffer)
|
|
(goto-char (point-min)))
|
|
|
|
(while data-continue
|
|
(save-excursion
|
|
(set-buffer buffer)
|
|
(beginning-of-line)
|
|
(setq this-line (point))
|
|
(end-of-line)
|
|
(setq this-line-end (point))
|
|
(setq sending-data nil)
|
|
(setq sending-data (buffer-substring this-line this-line-end))
|
|
(if (/= (forward-line 1) 0)
|
|
(setq data-continue nil)))
|
|
|
|
(smtpmail-send-data-1 process sending-data)
|
|
)
|
|
)
|
|
)
|
|
|
|
|
|
(defun smtpmail-deduce-address-list (smtpmail-text-buffer header-start header-end)
|
|
"Get address list suitable for smtp RCPT TO: <address>."
|
|
(require 'mail-utils) ;; pick up mail-strip-quoted-names
|
|
(let
|
|
((case-fold-search t)
|
|
(simple-address-list "")
|
|
this-line
|
|
this-line-end
|
|
addr-regexp)
|
|
|
|
(unwind-protect
|
|
(save-excursion
|
|
;;
|
|
(set-buffer smtpmail-address-buffer) (erase-buffer)
|
|
(insert-buffer-substring smtpmail-text-buffer header-start header-end)
|
|
(goto-char (point-min))
|
|
;; RESENT-* fields should stop processing of regular fields.
|
|
(save-excursion
|
|
(if (re-search-forward "^Resent-\\(to\\|cc\\|bcc\\):" header-end t)
|
|
(setq addr-regexp "^Resent-\\(to\\|cc\\|bcc\\):")
|
|
(setq addr-regexp "^\\(To:\\|Cc:\\|Bcc:\\)")))
|
|
|
|
(while (re-search-forward addr-regexp header-end t)
|
|
(replace-match "")
|
|
(setq this-line (match-beginning 0))
|
|
(forward-line 1)
|
|
;; get any continuation lines
|
|
(while (and (looking-at "^[ \t]+") (< (point) header-end))
|
|
(forward-line 1))
|
|
(setq this-line-end (point-marker))
|
|
(setq simple-address-list
|
|
(concat simple-address-list " "
|
|
(mail-strip-quoted-names (buffer-substring this-line this-line-end))))
|
|
)
|
|
(erase-buffer)
|
|
(insert-string " ")
|
|
(insert-string simple-address-list)
|
|
(insert-string "\n")
|
|
(subst-char-in-region (point-min) (point-max) 10 ? t);; newline --> blank
|
|
(subst-char-in-region (point-min) (point-max) ?, ? t);; comma --> blank
|
|
(subst-char-in-region (point-min) (point-max) 9 ? t);; tab --> blank
|
|
|
|
(goto-char (point-min))
|
|
;; tidyness in case hook is not robust when it looks at this
|
|
(while (re-search-forward "[ \t]+" header-end t) (replace-match " "))
|
|
|
|
(goto-char (point-min))
|
|
(let (recipient-address-list)
|
|
(while (re-search-forward " \\([^ ]+\\) " (point-max) t)
|
|
(backward-char 1)
|
|
(setq recipient-address-list (cons (buffer-substring (match-beginning 1) (match-end 1))
|
|
recipient-address-list))
|
|
)
|
|
(setq smtpmail-recipient-address-list recipient-address-list))
|
|
|
|
)
|
|
)
|
|
)
|
|
)
|
|
|
|
|
|
(defun smtpmail-do-bcc (header-end)
|
|
"Delete [Resent-]BCC: and their continuation lines from the header area.
|
|
There may be multiple BCC: lines, and each may have arbitrarily
|
|
many continuation lines."
|
|
(let ((case-fold-search t))
|
|
(save-excursion (goto-char (point-min))
|
|
;; iterate over all BCC: lines
|
|
(while (re-search-forward "^\(RESENT-\)?BCC:" header-end t)
|
|
(delete-region (match-beginning 0) (progn (forward-line 1) (point)))
|
|
;; get rid of any continuation lines
|
|
(while (and (looking-at "^[ \t].*\n") (< (point) header-end))
|
|
(replace-match ""))
|
|
)
|
|
) ;; save-excursion
|
|
) ;; let
|
|
)
|
|
|
|
|
|
|
|
(provide 'smtpmail)
|
|
|
|
;;; smtpmail.el ends here
|