1 ;;; smtpmail.el --- simple SMTP protocol (RFC 821) for sending mail
3 ;; Copyright (C) 1995, 1996, 2001, 2002 Free Software Foundation, Inc.
5 ;; Author: Tomoji Kagatani <kagatani@rbc.ncl.omron.co.jp>
6 ;; Maintainer: Simon Josefsson <simon@josefsson.org>
7 ;; w32 Maintainer: Brian D. Carlstrom <bdc@ai.mit.edu>
8 ;; ESMTP support: Simon Leinen <simon@switch.ch>
9 ;; Hacked by Mike Taylor, 11th October 1999 to add support for
10 ;; automatically appending a domain to RCPT TO: addresses.
11 ;; AUTH=LOGIN support: Stephen Cranefield <scranefield@infoscience.otago.ac.nz>
14 ;; This file is part of GNU Emacs.
16 ;; GNU Emacs is free software; you can redistribute it and/or modify
17 ;; it under the terms of the GNU General Public License as published by
18 ;; the Free Software Foundation; either version 2, or (at your option)
21 ;; GNU Emacs is distributed in the hope that it will be useful,
22 ;; but WITHOUT ANY WARRANTY; without even the implied warranty of
23 ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
24 ;; GNU General Public License for more details.
26 ;; You should have received a copy of the GNU General Public License
27 ;; along with GNU Emacs; see the file COPYING. If not, write to the
28 ;; Free Software Foundation, Inc., 59 Temple Place - Suite 330,
29 ;; Boston, MA 02111-1307, USA.
33 ;; Send Mail to smtp host from smtpmail temp buffer.
35 ;; Please add these lines in your .emacs(_emacs) or use customize.
37 ;;(setq send-mail-function 'smtpmail-send-it) ; if you use `mail'
38 ;;(setq message-send-mail-function 'smtpmail-send-it) ; if you use message/Gnus
39 ;;(setq smtpmail-default-smtp-server "YOUR SMTP HOST")
40 ;;(setq smtpmail-local-domain "YOUR DOMAIN NAME")
41 ;;(setq smtpmail-sendto-domain "YOUR DOMAIN NAME")
42 ;;(setq smtpmail-debug-info t) ; only to debug problems
43 ;;(setq smtpmail-auth-credentials ; or use ~/.authinfo
44 ;; '(("YOUR SMTP HOST" 25 "username" "password")))
45 ;;(setq smtpmail-starttls-credentials
46 ;; '(("YOUR SMTP HOST" 25 "~/.my_smtp_tls.key" "~/.my_smtp_tls.cert")))
48 ;; To queue mail, set smtpmail-queue-mail to t and use
49 ;; smtpmail-send-queued-mail to send.
51 ;; Modified by Stephen Cranefield <scranefield@infoscience.otago.ac.nz>,
52 ;; 22/6/99, to support SMTP Authentication by the AUTH=LOGIN mechanism.
53 ;; See http://help.netscape.com/products/server/messaging/3x/info/smtpauth.html
54 ;; Rewritten by Simon Josefsson to use same credential variable as AUTH
57 ;; Modified by Simon Josefsson <jas@pdc.kth.se>, 22/2/99, to support SMTP
58 ;; Authentication by the AUTH mechanism.
59 ;; See http://www.ietf.org/rfc/rfc2554.txt
61 ;; Modified by Simon Josefsson <simon@josefsson.org>, 2000-10-07, to support
62 ;; STARTTLS. Requires external program
63 ;; ftp://ftp.opaopa.org/pub/elisp/starttls-*.tar.gz.
64 ;; See http://www.ietf.org/rfc/rfc2246.txt, http://www.ietf.org/rfc/rfc2487.txt
70 (autoload 'starttls-open-stream "starttls")
71 (autoload 'starttls-negotiate "starttls")
72 (autoload 'mail-strip-quoted-names "mail-utils")
73 (autoload 'message-make-date "message")
74 (autoload 'message-make-message-id "message")
75 (autoload 'rfc2104-hash "rfc2104")
76 (autoload 'netrc-parse "netrc")
77 (autoload 'netrc-machine "netrc")
78 (autoload 'netrc-get "netrc")
81 (defgroup smtpmail nil
82 "SMTP protocol for sending mail."
86 (defcustom smtpmail-default-smtp-server nil
87 "*Specify default SMTP server.
88 This only has effect if you specify it before loading the smtpmail library."
89 :type '(choice (const nil) string)
92 (defcustom smtpmail-smtp-server
93 (or (getenv "SMTPSERVER") smtpmail-default-smtp-server)
94 "*The name of the host running SMTP server."
95 :type '(choice (const nil) string)
98 (defcustom smtpmail-smtp-service 25
99 "*SMTP service port number.
100 The default value would be \"smtp\" or 25 ."
101 :type '(choice (integer :tag "Port") (string :tag "Service"))
104 (defcustom smtpmail-local-domain nil
105 "*Local domain name without a host name.
106 If the function (system-name) returns the full internet address,
107 don't define this value."
108 :type '(choice (const nil) string)
111 (defcustom smtpmail-sendto-domain nil
112 "*Local domain name without a host name.
113 This is appended (with an @-sign) to any specified recipients which do
114 not include an @-sign, so that each RCPT TO address is fully qualified.
115 \(Some configurations of sendmail require this.)
117 Don't bother to set this unless you have get an error like:
118 Sending failed; SMTP protocol error
119 when sending mail, and the *trace of SMTP session to <somewhere>*
120 buffer includes an exchange like:
122 501 <someone>: recipient address must contain a domain
124 :type '(choice (const nil) string)
127 (defcustom smtpmail-debug-info nil
128 "Whether to print info in buffer *trace of SMTP session to <somewhere>*.
129 See also `smtpmail-debug-verb' which determines if the SMTP protocol should
134 (defcustom smtpmail-debug-verb nil
135 "Whether this library sends the SMTP VERB command or not.
136 The commands enables verbose information from the SMTP server."
140 (defcustom smtpmail-code-conv-from nil ;; *junet*
141 "*smtpmail code convert from this code to *internal*..for tiny-mime.."
145 (defcustom smtpmail-queue-mail nil
146 "*Specify if mail is queued (if t) or sent immediately (if nil).
147 If queued, it is stored in the directory `smtpmail-queue-dir'
148 and sent with `smtpmail-send-queued-mail'."
152 (defcustom smtpmail-queue-dir "~/Mail/queued-mail/"
153 "*Directory where `smtpmail.el' stores queued mail."
157 (defcustom smtpmail-auth-credentials "~/.authinfo"
158 "Specify username and password for servers, directly or via .netrc file.
159 This variable can either be a filename pointing to a file in netrc(5)
160 format, or list of four-element lists that contain, in order,
161 `servername' (a string), `port' (an integer), `user' (a string) and
162 `password' (a string, or nil to query the user when needed). If you
163 need to enter a `realm' too, add it to the user string, so that it
164 looks like `user@realm'."
166 (repeat (list (string :tag "Server")
167 (integer :tag "Port")
168 (string :tag "Username")
169 (choice (const :tag "Query when needed" nil)
170 (string :tag "Password")))))
174 (defcustom smtpmail-starttls-credentials '(("" 25 "" ""))
175 "Specify STARTTLS keys and certificates for servers.
176 This is a list of four-element list with `servername' (a string),
177 `port' (an integer), `key' (a filename) and `certificate' (a filename)."
178 :type '(repeat (list (string :tag "Server")
179 (integer :tag "Port")
181 (file :tag "Certificate")))
185 (defcustom smtpmail-warn-about-unknown-extensions nil
186 "*If set, print warnings about unknown SMTP extensions.
187 This is mainly useful for development purposes, to learn about
188 new SMTP extensions that might be useful to support."
193 (defvar smtpmail-queue-index-file "index"
194 "File name of queued mail index,
195 This is relative to `smtpmail-queue-dir'.")
197 (defvar smtpmail-address-buffer)
198 (defvar smtpmail-recipient-address-list)
200 (defvar smtpmail-queue-counter 0)
202 ;; Buffer-local variable.
203 (defvar smtpmail-read-point)
205 (defvar smtpmail-queue-index (concat smtpmail-queue-dir
206 smtpmail-queue-index-file))
208 (defconst smtpmail-auth-supported '(cram-md5 login)
209 "List of supported SMTP AUTH mechanisms.")
215 (defvar smtpmail-mail-address nil
216 "Value of `user-mail-address' in ambient buffer.")
219 (defun smtpmail-send-it ()
220 (let ((errbuf (if mail-interactive
221 (generate-new-buffer " smtpmail errors")
223 (tembuf (generate-new-buffer " smtpmail temp"))
224 (case-fold-search nil)
226 (mailbuf (current-buffer))
227 (smtpmail-mail-address user-mail-address)
228 (smtpmail-code-conv-from
229 (if enable-multibyte-characters
230 (let ((sendmail-coding-system smtpmail-code-conv-from))
231 (select-message-coding-system)))))
236 (insert-buffer-substring mailbuf)
237 (goto-char (point-max))
238 ;; require one newline at the end.
239 (or (= (preceding-char) ?\n)
241 ;; Change header-delimiter to be what sendmail expects.
242 (mail-sendmail-undelimit-header)
243 (setq delimline (point-marker))
244 ;; (sendmail-synch-aliases)
246 (expand-mail-aliases (point-min) delimline))
247 (goto-char (point-min))
248 ;; ignore any blank lines in the header
249 (while (and (re-search-forward "\n\n\n*" delimline t)
250 (< (point) delimline))
251 (replace-match "\n"))
252 (let ((case-fold-search t))
253 ;; We used to process Resent-... headers here,
254 ;; but it was not done properly, and the job
255 ;; is done correctly in smtpmail-deduce-address-list.
256 ;; Don't send out a blank subject line
257 (goto-char (point-min))
258 (if (re-search-forward "^Subject:\\([ \t]*\n\\)+\\b" delimline t)
260 ;; This one matches a Subject just before the header delimiter.
261 (if (and (re-search-forward "^Subject:\\([ \t]*\n\\)+" delimline t)
262 (= (match-end 0) delimline))
264 ;; Put the "From:" field in unless for some odd reason
265 ;; they put one in themselves.
266 (goto-char (point-min))
267 (if (not (re-search-forward "^From:" delimline t))
268 (let* ((login smtpmail-mail-address)
269 (fullname (user-full-name)))
270 (cond ((eq mail-from-style 'angles)
271 (insert "From: " fullname)
272 (let ((fullname-start (+ (point-min) 6))
273 (fullname-end (point-marker)))
274 (goto-char fullname-start)
275 ;; Look for a character that cannot appear unquoted
276 ;; according to RFC 822.
277 (if (re-search-forward "[^- !#-'*+/-9=?A-Z^-~]"
280 ;; Quote fullname, escaping specials.
281 (goto-char fullname-start)
283 (while (re-search-forward "[\"\\]"
285 (replace-match "\\\\\\&" t))
287 (insert " <" login ">\n"))
288 ((eq mail-from-style 'parens)
289 (insert "From: " login " (")
290 (let ((fullname-start (point)))
292 (let ((fullname-end (point-marker)))
293 (goto-char fullname-start)
294 ;; RFC 822 says \ and nonmatching parentheses
295 ;; must be escaped in comments.
296 ;; Escape every instance of ()\ ...
297 (while (re-search-forward "[()\\]" fullname-end 1)
298 (replace-match "\\\\\\&" t))
299 ;; ... then undo escaping of matching parentheses,
300 ;; including matching nested parentheses.
301 (goto-char fullname-start)
302 (while (re-search-forward
303 "\\(\\=\\|[^\\]\\(\\\\\\\\\\)*\\)\\\\(\\(\\([^\\]\\|\\\\\\\\\\)*\\)\\\\)"
305 (replace-match "\\1(\\3)" t)
306 (goto-char fullname-start))))
308 ((null mail-from-style)
309 (insert "From: " login "\n")))))
310 ;; Insert a `Message-Id:' field if there isn't one yet.
311 (goto-char (point-min))
312 (unless (re-search-forward "^Message-Id:" delimline t)
313 (insert "Message-Id: " (message-make-message-id) "\n"))
314 ;; Insert a `Date:' field if there isn't one yet.
315 (goto-char (point-min))
316 (unless (re-search-forward "^Date:" delimline t)
317 (insert "Date: " (message-make-date) "\n"))
318 ;; Insert an extra newline if we need it to work around
319 ;; Sun's bug that swallows newlines.
320 (goto-char (1+ delimline))
321 (if (eval mail-mailer-swallows-blank-line)
323 ;; Find and handle any FCC fields.
324 (goto-char (point-min))
325 (if (re-search-forward "^FCC:" delimline t)
326 (mail-do-fcc delimline))
328 (with-current-buffer errbuf
333 (setq smtpmail-address-buffer (generate-new-buffer "*smtp-mail*"))
334 (setq smtpmail-recipient-address-list
335 (smtpmail-deduce-address-list tembuf (point-min) delimline))
336 (kill-buffer smtpmail-address-buffer)
338 (smtpmail-do-bcc delimline)
340 (if (not smtpmail-queue-mail)
341 (if (not (null smtpmail-recipient-address-list))
342 (if (not (smtpmail-via-smtp
343 smtpmail-recipient-address-list tembuf))
344 (error "Sending failed; SMTP protocol error"))
345 (error "Sending failed; no recipients"))
346 (let* ((file-data (concat
348 (concat (time-stamp-yyyy-mm-dd)
349 "_" (time-stamp-hh:mm:ss)
351 (setq smtpmail-queue-counter
352 (1+ smtpmail-queue-counter)))))
353 (file-elisp (concat file-data ".el"))
354 (buffer-data (create-file-buffer file-data))
355 (buffer-elisp (create-file-buffer file-elisp))
356 (buffer-scratch "*queue-mail*"))
357 (with-current-buffer buffer-data
359 (insert-buffer tembuf)
360 (write-file file-data)
361 (set-buffer buffer-elisp)
364 "(setq smtpmail-recipient-address-list '"
365 (prin1-to-string smtpmail-recipient-address-list)
367 (write-file file-elisp)
368 (set-buffer (generate-new-buffer buffer-scratch))
369 (insert (concat file-data "\n"))
370 (append-to-file (point-min)
372 smtpmail-queue-index)
374 (kill-buffer buffer-scratch)
375 (kill-buffer buffer-data)
376 (kill-buffer buffer-elisp))))
379 (kill-buffer errbuf)))))
381 (defun smtpmail-send-queued-mail ()
382 "Send mail that was queued as a result of setting `smtpmail-queue-mail'."
385 ;;; Get index, get first mail, send it, update index, get second
386 ;;; mail, send it, etc...
388 (insert-file-contents smtpmail-queue-index)
389 (beginning-of-buffer)
391 (setq file-msg (buffer-substring (point) (line-end-position)))
393 ;; Insert the message literally: it is already encoded as per
394 ;; the MIME headers, and code conversions might guess the
397 (let ((coding-system-for-read 'no-conversion))
398 (insert-file-contents file-msg))
399 (if (not (null smtpmail-recipient-address-list))
400 (if (not (smtpmail-via-smtp smtpmail-recipient-address-list
402 (error "Sending failed; SMTP protocol error"))
403 (error "Sending failed; no recipients")))
404 (delete-file file-msg)
405 (delete-file (concat file-msg ".el"))
407 (write-region (point-min) (point-max) smtpmail-queue-index))))
409 ;(defun smtpmail-via-smtp (host,port,sender,destination,smtpmail-text-buffer)
411 (defun smtpmail-fqdn ()
412 (if smtpmail-local-domain
413 (concat (system-name) "." smtpmail-local-domain)
416 (defsubst smtpmail-cred-server (cred)
419 (defsubst smtpmail-cred-port (cred)
422 (defsubst smtpmail-cred-key (cred)
425 (defsubst smtpmail-cred-user (cred)
428 (defsubst smtpmail-cred-cert (cred)
431 (defsubst smtpmail-cred-passwd (cred)
434 (defun smtpmail-find-credentials (cred server port)
437 (while (setq el (pop l))
438 (when (and (equal server (smtpmail-cred-server el))
439 (equal port (smtpmail-cred-port el)))
440 (throw 'done el))))))
442 (defun smtpmail-maybe-append-domain (recipient)
443 (if (or (not smtpmail-sendto-domain)
444 (string-match "@" recipient))
446 (concat recipient "@" smtpmail-sendto-domain)))
448 (defun smtpmail-intersection (list1 list2)
451 (when (memq el2 list1)
455 (defun smtpmail-open-stream (process-buffer host port)
456 (let ((cred (smtpmail-find-credentials
457 smtpmail-starttls-credentials host port)))
458 (if (null (and cred (condition-case ()
459 (call-process "starttls")
462 (open-network-stream "SMTP" process-buffer host port)
463 (let* ((cred-key (smtpmail-cred-key cred))
464 (cred-cert (smtpmail-cred-cert cred))
466 (when (and (stringp cred-key) (stringp cred-cert)
468 (setq cred-key (expand-file-name cred-key)))
470 (setq cred-cert (expand-file-name cred-cert))))
471 (list "--key-file" cred-key "--cert-file" cred-cert))))
472 (starttls-open-stream "SMTP" process-buffer host port)))))
474 (defun smtpmail-try-auth-methods (process supported-extensions host port)
475 (let* ((mechs (cdr-safe (assoc 'auth supported-extensions)))
476 (mech (car (smtpmail-intersection smtpmail-auth-supported mechs)))
477 (cred (if (stringp smtpmail-auth-credentials)
478 (let* ((netrc (netrc-parse smtpmail-auth-credentials))
479 (hostentry (netrc-machine
480 netrc host (format "%s" (or port "smtp"))
484 (netrc-get hostentry "login")
485 (netrc-get hostentry "password"))))
486 (smtpmail-find-credentials
487 smtpmail-auth-credentials host port)))
489 (or (smtpmail-cred-passwd cred)
491 (format "SMTP password for %s:%s: "
492 (smtpmail-cred-server cred)
493 (smtpmail-cred-port cred))))))
498 (smtpmail-send-command process (format "AUTH %s" mech))
499 (if (or (null (car (setq ret (smtpmail-read-response process))))
500 (not (integerp (car ret)))
503 (when (eq (car ret) 334)
504 (let* ((challenge (substring (cadr ret) 4))
505 (decoded (base64-decode-string challenge))
506 (hash (rfc2104-hash 'md5 64 16 passwd decoded))
507 (response (concat (smtpmail-cred-user cred) " " hash))
508 (encoded (base64-encode-string response)))
509 (smtpmail-send-command process (format "%s" encoded))
510 (if (or (null (car (setq ret (smtpmail-read-response process))))
511 (not (integerp (car ret)))
513 (throw 'done nil)))))
515 (smtpmail-send-command process "AUTH LOGIN")
516 (if (or (null (car (setq ret (smtpmail-read-response process))))
517 (not (integerp (car ret)))
520 (smtpmail-send-command
521 process (base64-encode-string (smtpmail-cred-user cred)))
522 (if (or (null (car (setq ret (smtpmail-read-response process))))
523 (not (integerp (car ret)))
526 (smtpmail-send-command process (base64-encode-string passwd))
527 (if (or (null (car (setq ret (smtpmail-read-response process))))
528 (not (integerp (car ret)))
532 (error "Mechanism %s not implemented" mech)))
533 ;; Remember the password.
534 (when (and (not (stringp smtpmail-auth-credentials))
535 (null (smtpmail-cred-passwd cred)))
536 (setcar (cdr (cdr (cdr cred))) passwd)))))
538 (defun smtpmail-via-smtp (recipient smtpmail-text-buffer)
540 (host (or smtpmail-smtp-server
541 (error "`smtpmail-smtp-server' not defined")))
542 (port smtpmail-smtp-service)
546 (supported-extensions '()))
549 ;; get or create the trace buffer
551 (get-buffer-create (format "*trace of SMTP session to %s*" host)))
553 ;; clear the trace buffer of old output
554 (with-current-buffer process-buffer
557 ;; open the connection to the server
558 (setq process (smtpmail-open-stream process-buffer host port))
559 (and (null process) (throw 'done nil))
561 ;; set the send-filter
562 (set-process-filter process 'smtpmail-process-filter)
564 (with-current-buffer process-buffer
565 (set-buffer-process-coding-system 'raw-text-unix 'raw-text-unix)
566 (make-local-variable 'smtpmail-read-point)
567 (setq smtpmail-read-point (point-min))
570 (if (or (null (car (setq greeting (smtpmail-read-response process))))
571 (not (integerp (car greeting)))
572 (>= (car greeting) 400))
580 (smtpmail-send-command process (format "EHLO %s" (smtpmail-fqdn)))
582 (if (or (null (car (setq response-code
583 (smtpmail-read-response process))))
584 (not (integerp (car response-code)))
585 (>= (car response-code) 400))
588 (smtpmail-send-command
589 process (format "HELO %s" (smtpmail-fqdn)))
591 (if (or (null (car (setq response-code
592 (smtpmail-read-response process))))
593 (not (integerp (car response-code)))
594 (>= (car response-code) 400))
596 (dolist (line (cdr (cdr response-code)))
597 (let ((name (mapcar (lambda (s) (intern (downcase s)))
598 (split-string (substring line 4) "[ ]"))))
599 (and (eq (length name) 1)
600 (setq name (car name)))
602 (cond ((memq (if (consp name) (car name) name)
603 '(verb xvrb 8bitmime onex xone
607 auth=login auth starttls))
608 (setq supported-extensions
609 (cons name supported-extensions)))
610 (smtpmail-warn-about-unknown-extensions
611 (message "Unknown extension %s" name)))))))
614 (smtpmail-find-credentials smtpmail-starttls-credentials host port)
615 (member 'starttls supported-extensions)
616 (process-id process))
618 (smtpmail-send-command process (format "STARTTLS"))
619 (if (or (null (car (setq response-code (smtpmail-read-response process))))
620 (not (integerp (car response-code)))
621 (>= (car response-code) 400))
623 (starttls-negotiate process)
624 (setq do-starttls nil))
625 (setq do-ehlo nil))))
627 (smtpmail-try-auth-methods process supported-extensions host port)
629 (if (or (member 'onex supported-extensions)
630 (member 'xone supported-extensions))
632 (smtpmail-send-command process (format "ONEX"))
633 (if (or (null (car (setq response-code (smtpmail-read-response process))))
634 (not (integerp (car response-code)))
635 (>= (car response-code) 400))
638 (if (and smtpmail-debug-verb
639 (or (member 'verb supported-extensions)
640 (member 'xvrb supported-extensions)))
642 (smtpmail-send-command process (format "VERB"))
643 (if (or (null (car (setq response-code (smtpmail-read-response process))))
644 (not (integerp (car response-code)))
645 (>= (car response-code) 400))
648 (if (member 'xusr supported-extensions)
650 (smtpmail-send-command process (format "XUSR"))
651 (if (or (null (car (setq response-code (smtpmail-read-response process))))
652 (not (integerp (car response-code)))
653 (>= (car response-code) 400))
656 ;; MAIL FROM: <sender>
658 (if (or (member 'size supported-extensions)
659 (assoc 'size supported-extensions))
661 (with-current-buffer smtpmail-text-buffer
663 (+ (- (point-max) (point-min))
664 ;; Add one byte for each change-of-line
665 ;; because or CR-LF representation:
666 (count-lines (point-min) (point-max))
667 ;; For some reason, an empty line is
668 ;; added to the message. Maybe this
669 ;; is a bug, but it can't hurt to add
670 ;; those two bytes anyway:
674 (if (member '8bitmime supported-extensions)
676 ;; Code should be added here that transforms
677 ;; the contents of the message buffer into
678 ;; something the receiving SMTP can handle.
679 ;; For a receiver that supports 8BITMIME, this
680 ;; may mean converting BINARY to BASE64, or
681 ;; adding Content-Transfer-Encoding and the
682 ;; other MIME headers. The code should also
683 ;; return an indication of what encoding the
684 ;; message buffer is now, i.e. ASCII or
690 ; (smtpmail-send-command process (format "MAIL FROM:%s@%s" (user-login-name) (smtpmail-fqdn)))
691 (smtpmail-send-command process (format "MAIL FROM: <%s>%s%s"
692 (or mail-envelope-from
693 smtpmail-mail-address)
697 (if (or (null (car (setq response-code (smtpmail-read-response process))))
698 (not (integerp (car response-code)))
699 (>= (car response-code) 400))
703 ;; RCPT TO: <recipient>
705 (while (not (null (nth n recipient)))
706 (smtpmail-send-command process (format "RCPT TO: <%s>" (smtpmail-maybe-append-domain (nth n recipient))))
709 (setq response-code (smtpmail-read-response process))
710 (if (or (null (car response-code))
711 (not (integerp (car response-code)))
712 (>= (car response-code) 400))
718 (smtpmail-send-command process "DATA")
720 (if (or (null (car (setq response-code (smtpmail-read-response process))))
721 (not (integerp (car response-code)))
722 (>= (car response-code) 400))
727 (smtpmail-send-data process smtpmail-text-buffer)
730 (smtpmail-send-command process ".")
732 (if (or (null (car (setq response-code (smtpmail-read-response process))))
733 (not (integerp (car response-code)))
734 (>= (car response-code) 400))
739 ; (smtpmail-send-command process "QUIT")
740 ; (and (null (car (smtpmail-read-response process)))
744 (with-current-buffer (process-buffer process)
745 (smtpmail-send-command process "QUIT")
746 (smtpmail-read-response process)
748 ; (if (or (null (car (setq response-code (smtpmail-read-response process))))
749 ; (not (integerp (car response-code)))
750 ; (>= (car response-code) 400))
753 (delete-process process)
754 (unless smtpmail-debug-info
755 (kill-buffer process-buffer)))))))
758 (defun smtpmail-process-filter (process output)
759 (with-current-buffer (process-buffer process)
760 (goto-char (point-max))
763 (defun smtpmail-read-response (process)
764 (let ((case-fold-search nil)
765 (response-strings nil)
766 (response-continue t)
767 (return-value '(nil ()))
770 (while response-continue
771 (goto-char smtpmail-read-point)
772 (while (not (search-forward "\r\n" nil t))
773 (accept-process-output process)
774 (goto-char smtpmail-read-point))
776 (setq match-end (point))
777 (setq response-strings
778 (cons (buffer-substring smtpmail-read-point (- match-end 2))
781 (goto-char smtpmail-read-point)
782 (if (looking-at "[0-9]+ ")
783 (let ((begin (match-beginning 0))
785 (if smtpmail-debug-info
786 (message "%s" (car response-strings)))
788 (setq smtpmail-read-point match-end)
790 ;; ignore lines that start with "0"
791 (if (looking-at "0[0-9]+ ")
793 (setq response-continue nil)
796 (buffer-substring begin end))
797 (nreverse response-strings)))))
799 (if (looking-at "[0-9]+-")
800 (progn (if smtpmail-debug-info
801 (message "%s" (car response-strings)))
802 (setq smtpmail-read-point match-end)
803 (setq response-continue t))
805 (setq smtpmail-read-point match-end)
806 (setq response-continue nil)
808 (cons nil (nreverse response-strings)))
811 (setq smtpmail-read-point match-end)
815 (defun smtpmail-send-command (process command)
816 (goto-char (point-max))
817 (if (= (aref command 0) ?P)
818 (insert "PASS <omitted>\r\n")
819 (insert command "\r\n"))
820 (setq smtpmail-read-point (point))
821 (process-send-string process command)
822 (process-send-string process "\r\n"))
824 (defun smtpmail-send-data-1 (process data)
825 (goto-char (point-max))
827 (if (and (multibyte-string-p data)
828 smtpmail-code-conv-from)
829 (setq data (string-as-multibyte
830 (encode-coding-string data smtpmail-code-conv-from))))
832 (if smtpmail-debug-info
833 (insert data "\r\n"))
835 (setq smtpmail-read-point (point))
836 ;; Escape "." at start of a line
837 (if (eq (string-to-char data) ?.)
838 (process-send-string process "."))
839 (process-send-string process data)
840 (process-send-string process "\r\n")
843 (defun smtpmail-send-data (process buffer)
850 (with-current-buffer buffer
851 (goto-char (point-min)))
854 (with-current-buffer buffer
856 (setq this-line (point))
858 (setq this-line-end (point))
859 (setq sending-data nil)
860 (setq sending-data (buffer-substring this-line this-line-end))
861 (if (/= (forward-line 1) 0)
862 (setq data-continue nil)))
864 (smtpmail-send-data-1 process sending-data)
870 (defun smtpmail-deduce-address-list (smtpmail-text-buffer header-start header-end)
871 "Get address list suitable for smtp RCPT TO: <address>."
873 (with-current-buffer smtpmail-address-buffer
876 ((case-fold-search t)
877 (simple-address-list "")
881 (insert-buffer-substring smtpmail-text-buffer header-start header-end)
882 (goto-char (point-min))
883 ;; RESENT-* fields should stop processing of regular fields.
886 (if (re-search-forward "^Resent-\\(to\\|cc\\|bcc\\):"
888 "^Resent-\\(to\\|cc\\|bcc\\):"
889 "^\\(To:\\|Cc:\\|Bcc:\\)")))
891 (while (re-search-forward addr-regexp header-end t)
893 (setq this-line (match-beginning 0))
895 ;; get any continuation lines
896 (while (and (looking-at "^[ \t]+") (< (point) header-end))
898 (setq this-line-end (point-marker))
899 (setq simple-address-list
900 (concat simple-address-list " "
901 (mail-strip-quoted-names (buffer-substring this-line this-line-end))))
904 (insert " " simple-address-list "\n")
905 (subst-char-in-region (point-min) (point-max) 10 ? t);; newline --> blank
906 (subst-char-in-region (point-min) (point-max) ?, ? t);; comma --> blank
907 (subst-char-in-region (point-min) (point-max) 9 ? t);; tab --> blank
909 (goto-char (point-min))
910 ;; tidyness in case hook is not robust when it looks at this
911 (while (re-search-forward "[ \t]+" header-end t) (replace-match " "))
913 (goto-char (point-min))
914 (let (recipient-address-list)
915 (while (re-search-forward " \\([^ ]+\\) " (point-max) t)
917 (setq recipient-address-list (cons (buffer-substring (match-beginning 1) (match-end 1))
918 recipient-address-list))
920 (setq smtpmail-recipient-address-list recipient-address-list))
928 (defun smtpmail-do-bcc (header-end)
929 "Delete [Resent-]BCC: and their continuation lines from the header area.
930 There may be multiple BCC: lines, and each may have arbitrarily
931 many continuation lines."
932 (let ((case-fold-search t))
934 (goto-char (point-min))
935 ;; iterate over all BCC: lines
936 (while (re-search-forward "^\\(RESENT-\\)?BCC:" header-end t)
937 (delete-region (match-beginning 0)
938 (progn (forward-line 1) (point)))
939 ;; get rid of any continuation lines
940 (while (and (looking-at "^[ \t].*\n") (< (point) header-end))
941 (replace-match ""))))))
946 ;;; smtpmail.el ends here