smtpmail.el

   1 ;;; smtpmail.el --- SMTP interface for mail-mode
   2
   3 ;; Copyright (C) 1995, 1996, 1998 Free Software Foundation, Inc.
   4
   5 ;; Author: Tomoji Kagatani <kagatani@rbc.ncl.omron.co.jp>
   6 ;; Keywords: mail
   7
   8 ;; This file is part of FLIM (Faithful Library about Internet Message).
   9
  10 ;; This program is free software; you can redistribute it and/or
  11 ;; modify it under the terms of the GNU General Public License as
  12 ;; published by the Free Software Foundation; either version 2, or (at
  13 ;; your option) any later version.
  14
  15 ;; This program is distributed in the hope that it will be useful, but
  16 ;; WITHOUT ANY WARRANTY; without even the implied warranty of
  17 ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  18 ;; 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; see the file COPYING.  If not, write to the
  22 ;; Free Software Foundation, Inc., 59 Temple Place - Suite 330,
  23 ;; Boston, MA 02111-1307, USA.
  24
  25 ;;; Commentary:
  26
  27 ;; Send Mail to smtp host from smtpmail temp buffer.
  28
  29 ;; Please add these lines in your .emacs(_emacs).
  30 ;;
  31 ;;(setq send-mail-function 'smtpmail-send-it)
  32 ;;(setq smtp-default-server "YOUR SMTP HOST")
  33 ;;(setq smtp-service "smtp")
  34 ;;(setq smtp-local-domain "YOUR DOMAIN NAME")
  35 ;;(setq smtp-debug-info t)
  36 ;;(autoload 'smtpmail-send-it "smtpmail")
  37 ;;(setq user-full-name "YOUR NAME HERE")
  38
  39 ;; To queue mail, set smtpmail-queue-mail to t and use
  40 ;; smtpmail-send-queued-mail to send.
  41
  42
  43 ;;; Code:
  44
  45 (require 'smtp)
  46 (require 'sendmail)
  47 (require 'time-stamp)
  48
  49 ;;;
  50
  51 (defcustom smtpmail-queue-mail nil
  52   "*Specify if mail is queued (if t) or sent immediately (if nil).
  53 If queued, it is stored in the directory `smtpmail-queue-dir'
  54 and sent with `smtpmail-send-queued-mail'."
  55   :type 'boolean
  56   :group 'smtp)
  57
  58 (defcustom smtpmail-queue-dir "~/Mail/queued-mail/"
  59   "*Directory where `smtpmail.el' stores queued mail."
  60   :type 'directory
  61   :group 'smtp)
  62
  63 (defvar smtpmail-queue-index-file "index"
  64   "File name of queued mail index,
  65 This is relative to `smtpmail-queue-dir'.")
  66
  67 (defvar smtpmail-queue-index (concat smtpmail-queue-dir
  68                                      smtpmail-queue-index-file))
  69
  70 (defvar smtpmail-recipient-address-list nil)
  71
  72
  73 ;;;
  74 ;;;
  75 ;;;
  76
  77 ;;;###autoload
  78 (defun smtpmail-send-it ()
  79   (require 'mail-utils)
  80   (let ((errbuf (if mail-interactive
  81                     (generate-new-buffer " smtpmail errors")
  82                   0))
  83         (tembuf (generate-new-buffer " smtpmail temp"))
  84         (case-fold-search nil)
  85         resend-to-addresses
  86         delimline
  87         (mailbuf (current-buffer)))
  88     (unwind-protect
  89         (save-excursion
  90           (set-buffer tembuf)
  91           (erase-buffer)
  92           (insert-buffer-substring mailbuf)
  93           (goto-char (point-max))
  94           ;; require one newline at the end.
  95           (or (= (preceding-char) ?\n)
  96               (insert ?\n))
  97           ;; Change header-delimiter to be what sendmail expects.
  98           (goto-char (point-min))
  99           (re-search-forward
 100             (concat "^" (regexp-quote mail-header-separator) "\n"))
 101           (replace-match "\n")
 102           (backward-char 1)
 103           (setq delimline (point-marker))
 104 ;;        (sendmail-synch-aliases)
 105           (if mail-aliases
 106               (expand-mail-aliases (point-min) delimline))
 107           (goto-char (point-min))
 108           ;; ignore any blank lines in the header
 109           (while (and (re-search-forward "\n\n\n*" delimline t)
 110                       (< (point) delimline))
 111             (replace-match "\n"))
 112           (let ((case-fold-search t))
 113             (goto-char (point-min))
 114             (goto-char (point-min))
 115             (while (re-search-forward "^Resent-to:" delimline t)
 116               (setq resend-to-addresses
 117                     (save-restriction
 118                       (narrow-to-region (point)
 119                                         (save-excursion
 120                                           (end-of-line)
 121                                           (point)))
 122                       (append (mail-parse-comma-list)
 123                               resend-to-addresses))))
 124 ;;; Apparently this causes a duplicate Sender.
 125 ;;;         ;; If the From is different than current user, insert Sender.
 126 ;;;         (goto-char (point-min))
 127 ;;;         (and (re-search-forward "^From:"  delimline t)
 128 ;;;              (progn
 129 ;;;                (require 'mail-utils)
 130 ;;;                (not (string-equal
 131 ;;;                      (mail-strip-quoted-names
 132 ;;;                       (save-restriction
 133 ;;;                         (narrow-to-region (point-min) delimline)
 134 ;;;                         (mail-fetch-field "From")))
 135 ;;;                      (user-login-name))))
 136 ;;;              (progn
 137 ;;;                (forward-line 1)
 138 ;;;                (insert "Sender: " (user-login-name) "\n")))
 139             ;; Don't send out a blank subject line
 140             (goto-char (point-min))
 141             (if (re-search-forward "^Subject:[ \t]*\n" delimline t)
 142                 (replace-match ""))
 143             ;; Put the "From:" field in unless for some odd reason
 144             ;; they put one in themselves.
 145             (goto-char (point-min))
 146             (if (not (re-search-forward "^From:" delimline t))
 147                 (let* ((login user-mail-address)
 148                        (fullname (user-full-name)))
 149                   (cond ((eq mail-from-style 'angles)
 150                          (insert "From: " fullname)
 151                          (let ((fullname-start (+ (point-min) 6))
 152                                (fullname-end (point-marker)))
 153                            (goto-char fullname-start)
 154                            ;; Look for a character that cannot appear unquoted
 155                            ;; according to RFC 822.
 156                            (if (re-search-forward "[^- !#-'*+/-9=?A-Z^-~]"
 157                                                   fullname-end 1)
 158                                (progn
 159                                  ;; Quote fullname, escaping specials.
 160                                  (goto-char fullname-start)
 161                                  (insert "\"")
 162                                  (while (re-search-forward "[\"\\]"
 163                                                            fullname-end 1)
 164                                    (replace-match "\\\\\\&" t))
 165                                  (insert "\""))))
 166                          (insert " <" login ">\n"))
 167                         ((eq mail-from-style 'parens)
 168                          (insert "From: " login " (")
 169                          (let ((fullname-start (point)))
 170                            (insert fullname)
 171                            (let ((fullname-end (point-marker)))
 172                              (goto-char fullname-start)
 173                              ;; RFC 822 says \ and nonmatching parentheses
 174                              ;; must be escaped in comments.
 175                              ;; Escape every instance of ()\ ...
 176                              (while (re-search-forward "[()\\]" fullname-end 1)
 177                                (replace-match "\\\\\\&" t))
 178                              ;; ... then undo escaping of matching parentheses,
 179                              ;; including matching nested parentheses.
 180                              (goto-char fullname-start)
 181                              (while (re-search-forward
 182                                      "\\(\\=\\|[^\\]\\(\\\\\\\\\\)*\\)\\\\(\\(\\([^\\]\\|\\\\\\\\\\)*\\)\\\\)"
 183                                      fullname-end 1)
 184                                (replace-match "\\1(\\3)" t)
 185                                (goto-char fullname-start))))
 186                          (insert ")\n"))
 187                         ((null mail-from-style)
 188                          (insert "From: " login "\n")))))
 189             ;; Insert an extra newline if we need it to work around
 190             ;; Sun's bug that swallows newlines.
 191             (goto-char (1+ delimline))
 192             (if (eval mail-mailer-swallows-blank-line)
 193                 (newline))
 194             ;; Find and handle any FCC fields.
 195             (goto-char (point-min))
 196             (if (re-search-forward "^FCC:" delimline t)
 197                 (mail-do-fcc delimline))
 198             (if mail-interactive
 199                 (save-excursion
 200                   (set-buffer errbuf)
 201                   (erase-buffer))))
 202           ;;
 203           ;;
 204           ;;
 205           (setq smtpmail-recipient-address-list
 206                 (or resend-to-addresses
 207                     (smtp-deduce-address-list tembuf (point-min) delimline)))
 208
 209           (smtpmail-do-bcc delimline)
 210           ; Send or queue
 211           (if (not smtpmail-queue-mail)
 212               (if smtpmail-recipient-address-list
 213                   (if (not (smtp-via-smtp user-mail-address
 214                                           smtpmail-recipient-address-list
 215                                           tembuf))
 216                       (error "Sending failed; SMTP protocol error"))
 217                 (error "Sending failed; no recipients"))
 218             (let* ((file-data (concat
 219                                smtpmail-queue-dir
 220                                (time-stamp-strftime
 221                                 "%02y%02m%02d-%02H%02M%02S")))
 222                    (file-elisp (concat file-data ".el"))
 223                    (buffer-data (create-file-buffer file-data))
 224                    (buffer-elisp (create-file-buffer file-elisp))
 225                    (buffer-scratch "*queue-mail*"))
 226               (save-excursion
 227                 (set-buffer buffer-data)
 228                 (erase-buffer)
 229                 (insert-buffer tembuf)
 230                 (write-file file-data)
 231                 (set-buffer buffer-elisp)
 232                 (erase-buffer)
 233                 (insert (concat
 234                          "(setq smtpmail-recipient-address-list '"
 235                          (prin1-to-string smtpmail-recipient-address-list)
 236                          ")\n"))
 237                 (write-file file-elisp)
 238                 (set-buffer (generate-new-buffer buffer-scratch))
 239                 (insert (concat file-data "\n"))
 240                 (append-to-file (point-min)
 241                                 (point-max)
 242                                 smtpmail-queue-index)
 243                 )
 244               (kill-buffer buffer-scratch)
 245               (kill-buffer buffer-data)
 246               (kill-buffer buffer-elisp))))
 247       (kill-buffer tembuf)
 248       (if (bufferp errbuf)
 249           (kill-buffer errbuf)))))
 250
 251 (defun smtpmail-send-queued-mail ()
 252   "Send mail that was queued as a result of setting `smtpmail-queue-mail'."
 253   (interactive)
 254   ;;; Get index, get first mail, send it, get second mail, etc...
 255   (let ((buffer-index (find-file-noselect smtpmail-queue-index))
 256         (file-msg "")
 257         (tembuf nil))
 258     (save-excursion
 259       (set-buffer buffer-index)
 260       (beginning-of-buffer)
 261       (while (not (eobp))
 262         (setq file-msg (buffer-substring (point) (save-excursion
 263                                                    (end-of-line)
 264                                                    (point))))
 265         (load file-msg)
 266         (setq tembuf (find-file-noselect file-msg))
 267         (if smtpmail-recipient-address-list
 268             (if (not (smtp-via-smtp user-mail-address
 269                                     smtpmail-recipient-address-list tembuf))
 270                 (error "Sending failed; SMTP protocol error"))
 271           (error "Sending failed; no recipients"))
 272         (delete-file file-msg)
 273         (delete-file (concat file-msg ".el"))
 274         (kill-buffer tembuf)
 275         (kill-line 1))
 276       (set-buffer buffer-index)
 277       (save-buffer smtpmail-queue-index)
 278       (kill-buffer buffer-index)
 279       )))
 280
 281
 282 (defun smtpmail-do-bcc (header-end)
 283   "Delete BCC: and their continuation lines from the header area.
 284 There may be multiple BCC: lines, and each may have arbitrarily
 285 many continuation lines."
 286   (let ((case-fold-search t))
 287     (save-excursion
 288       (goto-char (point-min))
 289       ;; iterate over all BCC: lines
 290       (while (re-search-forward "^BCC:" header-end t)
 291         (delete-region (match-beginning 0) (progn (forward-line 1) (point)))
 292         ;; get rid of any continuation lines
 293         (while (and (looking-at "^[ \t].*\n") (< (point) header-end))
 294           (replace-match ""))
 295         )
 296       ) ;; save-excursion
 297     ) ;; let
 298   )
 299
 300
 301 ;;;
 302
 303 (provide 'smtpmail)
 304
 305 ;;; smtpmail.el ends here