smtpmail.el

   1 ;;; smtpmail.el --- SMTP interface for mail-mode
   2
   3 ;; Copyright (C) 1995, 1996, 1998, 1999 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 this program; see the file COPYING.  If not, write to
  22 ;; the 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 'poe)
  46 (require 'pcustom)
  47 (require 'smtp)
  48 (require 'sendmail)
  49 (require 'time-stamp)
  50
  51 (eval-when-compile (require 'static))
  52
  53 (static-when (featurep 'xemacs)
  54   (define-obsolete-variable-alias 'smtpmail-default-smtp-server
  55     'smtp-default-server)
  56   (define-obsolete-variable-alias 'smtpmail-smtp-server 'smtp-server)
  57   (define-obsolete-variable-alias 'smtpmail-smtp-service 'smtp-service)
  58   (define-obsolete-variable-alias 'smtpmail-local-domain 'smtp-local-domain)
  59   (define-obsolete-variable-alias 'smtpmail-debug-info 'smtp-debug-info)
  60   )
  61
  62 ;;;
  63
  64 (defcustom smtpmail-queue-mail nil
  65   "*Specify if mail is queued (if t) or sent immediately (if nil).
  66 If queued, it is stored in the directory `smtpmail-queue-dir'
  67 and sent with `smtpmail-send-queued-mail'."
  68   :type 'boolean
  69   :group 'smtp)
  70
  71 (defcustom smtpmail-queue-dir "~/Mail/queued-mail/"
  72   "*Directory where `smtpmail.el' stores queued mail."
  73   :type 'directory
  74   :group 'smtp)
  75
  76 (defvar smtpmail-queue-index-file "index"
  77   "File name of queued mail index,
  78 This is relative to `smtpmail-queue-dir'.")
  79
  80 (defvar smtpmail-queue-index (concat smtpmail-queue-dir
  81                                      smtpmail-queue-index-file))
  82
  83 (defvar smtpmail-recipient-address-list nil)
  84
  85
  86 ;;;
  87 ;;;
  88 ;;;
  89
  90 ;;;###autoload
  91 (defun smtpmail-send-it ()
  92   (require 'mail-utils)
  93   (let ((errbuf (if mail-interactive
  94                     (generate-new-buffer " smtpmail errors")
  95                   0))
  96         (tembuf (generate-new-buffer " smtpmail temp"))
  97         (case-fold-search nil)
  98         resend-to-addresses
  99         delimline
 100         (mailbuf (current-buffer)))
 101     (unwind-protect
 102         (save-excursion
 103           (set-buffer tembuf)
 104           (erase-buffer)
 105           (insert-buffer-substring mailbuf)
 106           (goto-char (point-max))
 107           ;; require one newline at the end.
 108           (or (= (preceding-char) ?\n)
 109               (insert ?\n))
 110           ;; Change header-delimiter to be what sendmail expects.
 111           (goto-char (point-min))
 112           (re-search-forward
 113             (concat "^" (regexp-quote mail-header-separator) "\n"))
 114           (replace-match "\n")
 115           (backward-char 1)
 116           (setq delimline (point-marker))
 117 ;;        (sendmail-synch-aliases)
 118           (if (and mail-aliases (fboundp 'expand-mail-aliases)) ; XEmacs
 119               (expand-mail-aliases (point-min) delimline))
 120           (goto-char (point-min))
 121           ;; ignore any blank lines in the header
 122           (while (and (re-search-forward "\n\n\n*" delimline t)
 123                       (< (point) delimline))
 124             (replace-match "\n"))
 125           (let ((case-fold-search t))
 126             (goto-char (point-min))
 127             (goto-char (point-min))
 128             (while (re-search-forward "^Resent-to:" delimline t)
 129               (setq resend-to-addresses
 130                     (save-restriction
 131                       (narrow-to-region (point)
 132                                         (save-excursion
 133                                           (end-of-line)
 134                                           (point)))
 135                       (append (mail-parse-comma-list)
 136                               resend-to-addresses))))
 137 ;;; Apparently this causes a duplicate Sender.
 138 ;;;         ;; If the From is different than current user, insert Sender.
 139 ;;;         (goto-char (point-min))
 140 ;;;         (and (re-search-forward "^From:"  delimline t)
 141 ;;;              (progn
 142 ;;;                (require 'mail-utils)
 143 ;;;                (not (string-equal
 144 ;;;                      (mail-strip-quoted-names
 145 ;;;                       (save-restriction
 146 ;;;                         (narrow-to-region (point-min) delimline)
 147 ;;;                         (mail-fetch-field "From")))
 148 ;;;                      (user-login-name))))
 149 ;;;              (progn
 150 ;;;                (forward-line 1)
 151 ;;;                (insert "Sender: " (user-login-name) "\n")))
 152             ;; Don't send out a blank subject line
 153             (goto-char (point-min))
 154             (if (re-search-forward "^Subject:[ \t]*\n" delimline t)
 155                 (replace-match ""))
 156             ;; Put the "From:" field in unless for some odd reason
 157             ;; they put one in themselves.
 158             (goto-char (point-min))
 159             (if (not (re-search-forward "^From:" delimline t))
 160                 (let* ((login user-mail-address)
 161                        (fullname (user-full-name)))
 162                   (cond ((eq mail-from-style 'angles)
 163                          (insert "From: " fullname)
 164                          (let ((fullname-start (+ (point-min) 6))
 165                                (fullname-end (point-marker)))
 166                            (goto-char fullname-start)
 167                            ;; Look for a character that cannot appear unquoted
 168                            ;; according to RFC 822.
 169                            (if (re-search-forward "[^- !#-'*+/-9=?A-Z^-~]"
 170                                                   fullname-end 1)
 171                                (progn
 172                                  ;; Quote fullname, escaping specials.
 173                                  (goto-char fullname-start)
 174                                  (insert "\"")
 175                                  (while (re-search-forward "[\"\\]"
 176                                                            fullname-end 1)
 177                                    (replace-match "\\\\\\&" t))
 178                                  (insert "\""))))
 179                          (insert " <" login ">\n"))
 180                         ((eq mail-from-style 'parens)
 181                          (insert "From: " login " (")
 182                          (let ((fullname-start (point)))
 183                            (insert fullname)
 184                            (let ((fullname-end (point-marker)))
 185                              (goto-char fullname-start)
 186                              ;; RFC 822 says \ and nonmatching parentheses
 187                              ;; must be escaped in comments.
 188                              ;; Escape every instance of ()\ ...
 189                              (while (re-search-forward "[()\\]" fullname-end 1)
 190                                (replace-match "\\\\\\&" t))
 191                              ;; ... then undo escaping of matching parentheses,
 192                              ;; including matching nested parentheses.
 193                              (goto-char fullname-start)
 194                              (while (re-search-forward
 195                                      "\\(\\=\\|[^\\]\\(\\\\\\\\\\)*\\)\\\\(\\(\\([^\\]\\|\\\\\\\\\\)*\\)\\\\)"
 196                                      fullname-end 1)
 197                                (replace-match "\\1(\\3)" t)
 198                                (goto-char fullname-start))))
 199                          (insert ")\n"))
 200                         ((null mail-from-style)
 201                          (insert "From: " login "\n")))))
 202             ;; Insert an extra newline if we need it to work around
 203             ;; Sun's bug that swallows newlines.
 204             (goto-char (1+ delimline))
 205             (if (eval mail-mailer-swallows-blank-line)
 206                 (newline))
 207             ;; Find and handle any FCC fields.
 208             (goto-char (point-min))
 209             (if (re-search-forward "^FCC:" delimline t)
 210                 (mail-do-fcc delimline))
 211             (if mail-interactive
 212                 (save-excursion
 213                   (set-buffer errbuf)
 214                   (erase-buffer))))
 215           ;;
 216           ;;
 217           ;;
 218           (setq smtpmail-recipient-address-list
 219                 (or resend-to-addresses
 220                     (smtp-deduce-address-list tembuf (point-min) delimline)))
 221
 222           (smtpmail-do-bcc delimline)
 223           ; Send or queue
 224           (if (not smtpmail-queue-mail)
 225               (if smtpmail-recipient-address-list
 226                   (if (not (smtp-via-smtp user-mail-address
 227                                           smtpmail-recipient-address-list
 228                                           tembuf))
 229                       (error "Sending failed; SMTP protocol error"))
 230                 (error "Sending failed; no recipients"))
 231             (let* ((file-data (concat
 232                                smtpmail-queue-dir
 233                                (time-stamp-strftime
 234                                 "%02y%02m%02d-%02H%02M%02S")))
 235                    (file-elisp (concat file-data ".el"))
 236                    (buffer-data (create-file-buffer file-data))
 237                    (buffer-elisp (create-file-buffer file-elisp))
 238                    (buffer-scratch "*queue-mail*"))
 239               (save-excursion
 240                 (set-buffer buffer-data)
 241                 (erase-buffer)
 242                 (insert-buffer tembuf)
 243                 (write-file file-data)
 244                 (set-buffer buffer-elisp)
 245                 (erase-buffer)
 246                 (insert (concat
 247                          "(setq smtpmail-recipient-address-list '"
 248                          (prin1-to-string smtpmail-recipient-address-list)
 249                          ")\n"))
 250                 (write-file file-elisp)
 251                 (set-buffer (generate-new-buffer buffer-scratch))
 252                 (insert (concat file-data "\n"))
 253                 (append-to-file (point-min)
 254                                 (point-max)
 255                                 smtpmail-queue-index)
 256                 )
 257               (kill-buffer buffer-scratch)
 258               (kill-buffer buffer-data)
 259               (kill-buffer buffer-elisp))))
 260       (kill-buffer tembuf)
 261       (if (bufferp errbuf)
 262           (kill-buffer errbuf)))))
 263
 264 (defun smtpmail-send-queued-mail ()
 265   "Send mail that was queued as a result of setting `smtpmail-queue-mail'."
 266   (interactive)
 267   ;;; Get index, get first mail, send it, get second mail, etc...
 268   (let ((buffer-index (find-file-noselect smtpmail-queue-index))
 269         (file-msg "")
 270         (tembuf nil))
 271     (save-excursion
 272       (set-buffer buffer-index)
 273       (beginning-of-buffer)
 274       (while (not (eobp))
 275         (setq file-msg (buffer-substring (point) (save-excursion
 276                                                    (end-of-line)
 277                                                    (point))))
 278         (load file-msg)
 279         (setq tembuf (find-file-noselect file-msg))
 280         (if smtpmail-recipient-address-list
 281             (if (not (smtp-via-smtp user-mail-address
 282                                     smtpmail-recipient-address-list tembuf))
 283                 (error "Sending failed; SMTP protocol error"))
 284           (error "Sending failed; no recipients"))
 285         (delete-file file-msg)
 286         (delete-file (concat file-msg ".el"))
 287         (kill-buffer tembuf)
 288         (kill-line 1))
 289       (set-buffer buffer-index)
 290       (save-buffer smtpmail-queue-index)
 291       (kill-buffer buffer-index)
 292       )))
 293
 294
 295 (defun smtpmail-do-bcc (header-end)
 296   "Delete BCC: and their continuation lines from the header area.
 297 There may be multiple BCC: lines, and each may have arbitrarily
 298 many continuation lines."
 299   (let ((case-fold-search t))
 300     (save-excursion
 301       (goto-char (point-min))
 302       ;; iterate over all BCC: lines
 303       (while (re-search-forward "^BCC:" header-end t)
 304         (delete-region (match-beginning 0) (progn (forward-line 1) (point)))
 305         ;; get rid of any continuation lines
 306         (while (and (looking-at "^[ \t].*\n") (< (point) header-end))
 307           (replace-match ""))
 308         )
 309       ) ;; save-excursion
 310     ) ;; let
 311   )
 312
 313
 314 ;;;
 315
 316 (provide 'smtpmail)
 317
 318 ;;; smtpmail.el ends here