1 ;;; smtpmail.el --- simple SMTP protocol (RFC 821) for sending mail
3 ;; Copyright (C) 1995, 1996, 2001, 2002, 2003, 2004, 2005,
4 ;; 2006 Free Software Foundation, Inc.
6 ;; Author: Tomoji Kagatani <kagatani@rbc.ncl.omron.co.jp>
7 ;; Maintainer: Simon Josefsson <simon@josefsson.org>
8 ;; w32 Maintainer: Brian D. Carlstrom <bdc@ai.mit.edu>
9 ;; ESMTP support: Simon Leinen <simon@switch.ch>
10 ;; Hacked by Mike Taylor, 11th October 1999 to add support for
11 ;; automatically appending a domain to RCPT TO: addresses.
12 ;; AUTH=LOGIN support: Stephen Cranefield <scranefield@infoscience.otago.ac.nz>
15 ;; This file is part of XEmacs.
17 ;; XEmacs is free software; you can redistribute it and/or modify
18 ;; it under the terms of the GNU General Public License as published by
19 ;; the Free Software Foundation; either version 2, or (at your option)
22 ;; XEmacs is distributed in the hope that it will be useful,
23 ;; but WITHOUT ANY WARRANTY; without even the implied warranty of
24 ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
25 ;; GNU General Public License for more details.
27 ;; You should have received a copy of the GNU General Public License
28 ;; along with XEmacs; see the file COPYING. If not, write to the
29 ;; Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
30 ;; Boston, MA 02110-1301, USA.
34 ;; Send Mail to smtp host from smtpmail temp buffer.
36 ;; Please add these lines in your .emacs(_emacs) or use customize.
38 ;;(setq send-mail-function 'smtpmail-send-it) ; if you use `mail'
39 ;;(setq message-send-mail-function 'smtpmail-send-it) ; if you use message/Gnus
40 ;;(setq smtpmail-default-smtp-server "YOUR SMTP HOST")
41 ;;(setq smtpmail-local-domain "YOUR DOMAIN NAME")
42 ;;(setq smtpmail-sendto-domain "YOUR DOMAIN NAME")
43 ;;(setq smtpmail-debug-info t) ; only to debug problems
44 ;;(setq smtpmail-auth-credentials ; or use ~/.authinfo
45 ;; '(("YOUR SMTP HOST" 25 "username" "password")))
46 ;;(setq smtpmail-starttls-credentials
47 ;; '(("YOUR SMTP HOST" 25 "~/.my_smtp_tls.key" "~/.my_smtp_tls.cert")))
48 ;; Where the 25 equals the value of `smtpmail-smtp-service', it can be an
49 ;; integer or a string, just as long as they match (eq).
51 ;; To queue mail, set smtpmail-queue-mail to t and use
52 ;; smtpmail-send-queued-mail to send.
54 ;; Modified by Stephen Cranefield <scranefield@infoscience.otago.ac.nz>,
55 ;; 22/6/99, to support SMTP Authentication by the AUTH=LOGIN mechanism.
56 ;; See http://help.netscape.com/products/server/messaging/3x/info/smtpauth.html
57 ;; Rewritten by Simon Josefsson to use same credential variable as AUTH
60 ;; Modified by Simon Josefsson <jas@pdc.kth.se>, 22/2/99, to support SMTP
61 ;; Authentication by the AUTH mechanism.
62 ;; See http://www.ietf.org/rfc/rfc2554.txt
64 ;; Modified by Simon Josefsson <simon@josefsson.org>, 2000-10-07, to support
65 ;; STARTTLS. Requires external program
66 ;; ftp://ftp.opaopa.org/pub/elisp/starttls-*.tar.gz.
67 ;; See http://www.ietf.org/rfc/rfc2246.txt, http://www.ietf.org/rfc/rfc2487.txt
72 (autoload 'starttls-open-stream "starttls")
73 (autoload 'starttls-negotiate "starttls")
74 (autoload 'mail-strip-quoted-names "mail-utils")
75 (autoload 'mail-check-safe-charset "mail-utils")
76 (autoload 'message-make-date "message")
77 (autoload 'message-make-message-id "message")
78 (autoload 'rfc2104-hash "rfc2104")
79 (autoload 'base64-decode-string "base64")
80 (autoload 'netrc-parse "netrc")
81 (autoload 'netrc-machine "netrc")
82 (autoload 'netrc-get "netrc")
85 (defgroup smtpmail nil
86 "SMTP protocol for sending mail."
90 (defcustom smtpmail-default-smtp-server nil
91 "*Specify default SMTP server.
92 This only has effect if you specify it before loading the smtpmail library."
93 :type '(choice (const nil) string)
96 (defcustom smtpmail-smtp-server
97 (or (getenv "SMTPSERVER") smtpmail-default-smtp-server)
98 "*The name of the host running SMTP server."
99 :type '(choice (const nil) string)
102 (defcustom smtpmail-smtp-service 25
103 "*SMTP service port number.
104 The default value would be \"smtp\" or 25 ."
105 :type '(choice (integer :tag "Port") (string :tag "Service"))
108 (defcustom smtpmail-local-domain nil
109 "*Local domain name without a host name.
110 If the function (system-name) returns the full internet address,
111 don't define this value."
112 :type '(choice (const nil) string)
115 (defcustom smtpmail-sendto-domain nil
116 "*Local domain name without a host name.
117 This is appended (with an @-sign) to any specified recipients which do
118 not include an @-sign, so that each RCPT TO address is fully qualified.
119 \(Some configurations of sendmail require this.)
121 Don't bother to set this unless you have get an error like:
122 Sending failed; SMTP protocol error
123 when sending mail, and the *trace of SMTP session to <somewhere>*
124 buffer includes an exchange like:
126 501 <someone>: recipient address must contain a domain
128 :type '(choice (const nil) string)
131 (defcustom smtpmail-debug-info nil
132 "Whether to print info in buffer *trace of SMTP session to <somewhere>*.
133 See also `smtpmail-debug-verb' which determines if the SMTP protocol should
138 (defcustom smtpmail-debug-verb nil
139 "Whether this library sends the SMTP VERB command or not.
140 The commands enables verbose information from the SMTP server."
144 (defcustom smtpmail-code-conv-from nil ;; *junet*
145 "*smtpmail code convert from this code to *internal*..for tiny-mime.."
149 (defcustom smtpmail-queue-mail nil
150 "*Specify if mail is queued (if t) or sent immediately (if nil).
151 If queued, it is stored in the directory `smtpmail-queue-dir'
152 and sent with `smtpmail-send-queued-mail'."
156 (defcustom smtpmail-queue-dir "~/Mail/queued-mail/"
157 "*Directory where `smtpmail.el' stores queued mail."
161 (defcustom smtpmail-auth-credentials "~/.authinfo"
162 "Specify username and password for servers, directly or via .netrc file.
163 This variable can either be a filename pointing to a file in netrc(5)
164 format, or list of four-element lists that contain, in order,
165 `servername' (a string), `port' (an integer), `user' (a string) and
166 `password' (a string, or nil to query the user when needed). If you
167 need to enter a `realm' too, add it to the user string, so that it
168 looks like `user@realm'."
170 (repeat (list (string :tag "Server")
171 (integer :tag "Port")
172 (string :tag "Username")
173 (choice (const :tag "Query when needed" nil)
174 (string :tag "Password")))))
177 (defcustom smtpmail-starttls-credentials '(("" 25 "" ""))
178 "Specify STARTTLS keys and certificates for servers.
179 This is a list of four-element list with `servername' (a string),
180 `port' (an integer), `key' (a filename) and `certificate' (a filename)."
181 :type '(repeat (list (string :tag "Server")
182 (integer :tag "Port")
184 (file :tag "Certificate")))
187 (defcustom smtpmail-warn-about-unknown-extensions nil
188 "*If set, print warnings about unknown SMTP extensions.
189 This is mainly useful for development purposes, to learn about
190 new SMTP extensions that might be useful to support."
194 (defvar smtpmail-queue-index-file "index"
195 "File name of queued mail index,
196 This is relative to `smtpmail-queue-dir'.")
198 (defvar smtpmail-address-buffer)
199 (defvar smtpmail-recipient-address-list)
201 (defvar smtpmail-queue-counter 0)
203 ;; Buffer-local variable.
204 (defvar smtpmail-read-point)
206 (defvar smtpmail-queue-index (concat smtpmail-queue-dir
207 smtpmail-queue-index-file))
209 (defconst smtpmail-auth-supported '(cram-md5 plain login)
210 "List of supported SMTP AUTH mechanisms.")
216 (defvar smtpmail-mail-address nil
217 "Value to use for envelope-from address for mail from ambient buffer.")
220 (defun smtpmail-send-it ()
221 (let ((errbuf (if mail-interactive
222 (generate-new-buffer " smtpmail errors")
224 (tembuf (generate-new-buffer " smtpmail temp"))
225 (case-fold-search nil)
227 (mailbuf (current-buffer))
228 ;; Examine this variable now, so that
229 ;; local binding in the mail buffer will take effect.
230 (smtpmail-mail-address
231 (or (and mail-specify-envelope-from (mail-envelope-from))
232 (user-mail-address))) ;; XEmacs
233 ;; XEmacs: Don't frob `smtpmail-code-conv-from' here
239 (insert-buffer-substring mailbuf)
240 (goto-char (point-max))
241 ;; require one newline at the end.
242 (or (= (preceding-char) ?\n)
244 ;; Change header-delimiter to be what sendmail expects.
245 (mail-sendmail-undelimit-header)
246 (setq delimline (point-marker))
247 ;; (sendmail-synch-aliases)
248 (if (and mail-aliases (fboundp 'expand-mail-aliases)) ; XEmacs
249 (expand-mail-aliases (point-min) delimline))
250 (goto-char (point-min))
251 ;; ignore any blank lines in the header
252 (while (and (re-search-forward "\n\n\n*" delimline t)
253 (< (point) delimline))
254 (replace-match "\n"))
255 (let ((case-fold-search t))
256 ;; We used to process Resent-... headers here,
257 ;; but it was not done properly, and the job
258 ;; is done correctly in smtpmail-deduce-address-list.
259 ;; Don't send out a blank subject line
260 (goto-char (point-min))
261 (if (re-search-forward "^Subject:\\([ \t]*\n\\)+\\b" delimline t)
263 ;; This one matches a Subject just before the header delimiter.
264 (if (and (re-search-forward "^Subject:\\([ \t]*\n\\)+" delimline t)
265 (= (match-end 0) delimline))
267 ;; Put the "From:" field in unless for some odd reason
268 ;; they put one in themselves.
269 (goto-char (point-min))
270 (if (not (re-search-forward "^From:" delimline t))
271 (let* ((login smtpmail-mail-address)
272 (fullname (user-full-name)))
273 (cond ((eq mail-from-style 'angles)
274 (insert "From: " fullname)
275 (let ((fullname-start (+ (point-min) 6))
276 (fullname-end (point-marker)))
277 (goto-char fullname-start)
278 ;; Look for a character that cannot appear unquoted
279 ;; according to RFC 822.
280 (if (re-search-forward "[^- !#-'*+/-9=?A-Z^-~]"
283 ;; Quote fullname, escaping specials.
284 (goto-char fullname-start)
286 (while (re-search-forward "[\"\\]"
288 (replace-match "\\\\\\&" t))
290 (insert " <" login ">\n"))
291 ((eq mail-from-style 'parens)
292 (insert "From: " login " (")
293 (let ((fullname-start (point)))
295 (let ((fullname-end (point-marker)))
296 (goto-char fullname-start)
297 ;; RFC 822 says \ and nonmatching parentheses
298 ;; must be escaped in comments.
299 ;; Escape every instance of ()\ ...
300 (while (re-search-forward "[()\\]" fullname-end 1)
301 (replace-match "\\\\\\&" t))
302 ;; ... then undo escaping of matching parentheses,
303 ;; including matching nested parentheses.
304 (goto-char fullname-start)
305 (while (re-search-forward
306 "\\(\\=\\|[^\\]\\(\\\\\\\\\\)*\\)\\\\(\\(\\([^\\]\\|\\\\\\\\\\)*\\)\\\\)"
308 (replace-match "\\1(\\3)" t)
309 (goto-char fullname-start))))
311 ((null mail-from-style)
312 (insert "From: " login "\n")))))
313 ;; Insert a `Message-Id:' field if there isn't one yet.
314 (goto-char (point-min))
315 (unless (re-search-forward "^Message-Id:" delimline t)
316 (insert "Message-Id: " (message-make-message-id) "\n"))
317 ;; Insert a `Date:' field if there isn't one yet.
318 (goto-char (point-min))
319 (unless (re-search-forward "^Date:" delimline t)
320 (insert "Date: " (message-make-date) "\n"))
321 ;; Insert an extra newline if we need it to work around
322 ;; Sun's bug that swallows newlines.
323 (goto-char (1+ delimline))
324 (if (eval mail-mailer-swallows-blank-line)
326 ;; Find and handle any FCC fields.
327 (goto-char (point-min))
328 (if (re-search-forward "^FCC:" delimline t)
329 (mail-do-fcc delimline))
331 (with-current-buffer errbuf
336 (setq smtpmail-address-buffer (generate-new-buffer "*smtp-mail*"))
337 (setq smtpmail-recipient-address-list
338 (smtpmail-deduce-address-list tembuf (point-min) delimline))
339 (kill-buffer smtpmail-address-buffer)
342 (mail-check-safe-charset)
344 (smtpmail-do-bcc delimline)
346 (if (not smtpmail-queue-mail)
347 (if (not (null smtpmail-recipient-address-list))
348 (if (not (smtpmail-via-smtp
349 smtpmail-recipient-address-list tembuf))
350 (error "Sending failed; SMTP protocol error"))
351 (error "Sending failed; no recipients"))
355 (format-time-string "%Y-%m-%d_%H:%M:%S")
356 (setq smtpmail-queue-counter
357 (1+ smtpmail-queue-counter)))
359 (file-data (convert-standard-filename file-data))
360 (file-elisp (concat file-data ".el"))
361 (buffer-data (create-file-buffer file-data))
362 (buffer-elisp (create-file-buffer file-elisp))
363 (buffer-scratch "*queue-mail*"))
364 (unless (file-exists-p smtpmail-queue-dir)
365 (make-directory smtpmail-queue-dir t))
366 (with-current-buffer buffer-data
368 (insert-buffer-substring tembuf)
369 (write-file file-data)
370 (set-buffer buffer-elisp)
373 "(setq smtpmail-recipient-address-list '"
374 (prin1-to-string smtpmail-recipient-address-list)
376 (write-file file-elisp)
377 (set-buffer (generate-new-buffer buffer-scratch))
378 (insert (concat file-data "\n"))
379 (append-to-file (point-min)
381 smtpmail-queue-index)
383 (kill-buffer buffer-scratch)
384 (kill-buffer buffer-data)
385 (kill-buffer buffer-elisp))))
388 (kill-buffer errbuf)))))
391 (defun smtpmail-send-queued-mail ()
392 "Send mail that was queued as a result of setting `smtpmail-queue-mail'."
395 ;;; Get index, get first mail, send it, update index, get second
396 ;;; mail, send it, etc...
398 (insert-file-contents smtpmail-queue-index)
399 (goto-char (point-min))
401 (setq file-msg (buffer-substring (point) (line-end-position)))
403 ;; Insert the message literally: it is already encoded as per
404 ;; the MIME headers, and code conversions might guess the
407 (let ((coding-system-for-read 'binary)) ;; XEmacs
408 (insert-file-contents file-msg))
409 (let ((smtpmail-mail-address
410 (or (and mail-specify-envelope-from (mail-envelope-from))
411 (user-mail-address)))) ;; XEmacs
412 (if (not (null smtpmail-recipient-address-list))
413 (if (not (smtpmail-via-smtp smtpmail-recipient-address-list
415 (error "Sending failed; SMTP protocol error"))
416 (error "Sending failed; no recipients"))))
417 (delete-file file-msg)
418 (delete-file (concat file-msg ".el"))
419 (delete-region (point-at-bol) (point-at-bol 2)))
420 (write-region (point-min) (point-max) smtpmail-queue-index))))
422 ;(defun smtpmail-via-smtp (host,port,sender,destination,smtpmail-text-buffer)
424 (defun smtpmail-fqdn ()
425 (if smtpmail-local-domain
426 (concat (system-name) "." smtpmail-local-domain)
429 (defsubst smtpmail-cred-server (cred)
432 (defsubst smtpmail-cred-port (cred)
435 (defsubst smtpmail-cred-key (cred)
438 (defsubst smtpmail-cred-user (cred)
441 (defsubst smtpmail-cred-cert (cred)
444 (defsubst smtpmail-cred-passwd (cred)
447 (defun smtpmail-find-credentials (cred server port)
450 (while (setq el (pop l))
451 (when (and (equal server (smtpmail-cred-server el))
452 (equal port (smtpmail-cred-port el)))
453 (throw 'done el))))))
455 (defun smtpmail-maybe-append-domain (recipient)
456 (if (or (not smtpmail-sendto-domain)
457 (string-match "@" recipient))
459 (concat recipient "@" smtpmail-sendto-domain)))
461 (defun smtpmail-intersection (list1 list2)
464 (when (memq el2 list1)
468 (defvar starttls-extra-args)
469 (defvar starttls-extra-arguments)
471 (defun smtpmail-open-stream (process-buffer host port)
472 (let ((cred (smtpmail-find-credentials
473 smtpmail-starttls-credentials host port)))
474 (if (null (and cred (condition-case ()
476 (with-boundp '(starttls-use-gnutls
477 starttls-gnutls-program
480 (call-process (if starttls-use-gnutls
481 starttls-gnutls-program
485 (open-network-stream "SMTP" process-buffer host port)
486 (let* ((cred-key (smtpmail-cred-key cred))
487 (cred-cert (smtpmail-cred-cert cred))
491 (when (and (stringp cred-key) (stringp cred-cert)
493 (setq cred-key (expand-file-name cred-key)))
495 (setq cred-cert (expand-file-name cred-cert))))
496 (list "--key-file" cred-key "--cert-file" cred-cert))))
497 (starttls-extra-arguments
499 starttls-extra-arguments
500 (when (and (stringp cred-key) (stringp cred-cert)
502 (setq cred-key (expand-file-name cred-key)))
504 (setq cred-cert (expand-file-name cred-cert))))
505 (list "--x509keyfile" cred-key "--x509certfile" cred-cert)))))
506 (starttls-open-stream "SMTP" process-buffer host port)))))
508 (defun smtpmail-try-auth-methods (process supported-extensions host port)
509 (let* ((mechs (cdr-safe (assoc 'auth supported-extensions)))
510 (mech (car (smtpmail-intersection smtpmail-auth-supported mechs)))
511 (cred (if (stringp smtpmail-auth-credentials)
512 (let* ((netrc (netrc-parse smtpmail-auth-credentials))
513 (port-name (format "%s" (or port "smtp")))
514 (hostentry (netrc-machine netrc host port-name
518 (netrc-get hostentry "login")
519 (netrc-get hostentry "password"))))
520 (smtpmail-find-credentials
521 smtpmail-auth-credentials host port)))
523 (or (smtpmail-cred-passwd cred)
525 (format "SMTP password for %s:%s: "
526 (smtpmail-cred-server cred)
527 (smtpmail-cred-port cred))))))
529 (when (and cred mech)
532 (smtpmail-send-command process (upcase (format "AUTH %s" mech)))
533 (if (or (null (car (setq ret (smtpmail-read-response process))))
534 (not (integerp (car ret)))
537 (when (eq (car ret) 334)
538 (let* ((challenge (substring (cadr ret) 4))
539 (decoded (base64-decode-string challenge))
540 (hash (rfc2104-hash 'md5 64 16 passwd decoded))
541 (response (concat (smtpmail-cred-user cred) " " hash))
542 (encoded (base64-encode-string response)))
543 (smtpmail-send-command process (format "%s" encoded))
544 (if (or (null (car (setq ret (smtpmail-read-response process))))
545 (not (integerp (car ret)))
547 (throw 'done nil)))))
549 (smtpmail-send-command process "AUTH LOGIN")
550 (if (or (null (car (setq ret (smtpmail-read-response process))))
551 (not (integerp (car ret)))
554 (smtpmail-send-command
555 process (base64-encode-string (smtpmail-cred-user cred)))
556 (if (or (null (car (setq ret (smtpmail-read-response process))))
557 (not (integerp (car ret)))
560 (smtpmail-send-command process (base64-encode-string passwd))
561 (if (or (null (car (setq ret (smtpmail-read-response process))))
562 (not (integerp (car ret)))
566 ;; We used to send an empty initial request, and wait for an
567 ;; empty response, and then send the password, but this
568 ;; violate a SHOULD in RFC 2222 paragraph 5.1. Note that this
569 ;; is not sent if the server did not advertise AUTH PLAIN in
570 ;; the EHLO response. See RFC 2554 for more info.
571 (smtpmail-send-command process
572 (concat "AUTH PLAIN "
573 (base64-encode-string
575 (smtpmail-cred-user cred)
578 (if (or (null (car (setq ret (smtpmail-read-response process))))
579 (not (integerp (car ret)))
580 (not (equal (car ret) 235)))
584 (error "Mechanism %s not implemented" mech)))
585 ;; Remember the password.
586 (when (and (not (stringp smtpmail-auth-credentials))
587 (null (smtpmail-cred-passwd cred)))
588 (setcar (cdr (cdr (cdr cred))) passwd)))))
590 (defun smtpmail-via-smtp (recipient smtpmail-text-buffer)
592 (host (or smtpmail-smtp-server
593 (error "`smtpmail-smtp-server' not defined")))
594 (port smtpmail-smtp-service)
595 ;; smtpmail-mail-address should be set to the appropriate
596 ;; buffer-local value by the caller, but in case not:
597 (envelope-from (or smtpmail-mail-address
598 (and mail-specify-envelope-from
599 (mail-envelope-from))
600 (user-mail-address))) ;; XEmacs
604 (supported-extensions '()))
607 ;; get or create the trace buffer
609 (get-buffer-create (format "*trace of SMTP session to %s*" host)))
611 ;; clear the trace buffer of old output
612 (with-current-buffer process-buffer
613 (setq buffer-undo-list t)
616 ;; open the connection to the server
617 (setq process (smtpmail-open-stream process-buffer host port))
618 (and (null process) (throw 'done nil))
620 ;; set the send-filter
621 (set-process-filter process 'smtpmail-process-filter)
623 (with-current-buffer process-buffer
625 (if (or (featurep 'mule) (featurep 'file-coding))
626 (set-process-coding-system process 'no-conversion-unix 'no-conversion-unix))
627 (make-local-variable 'smtpmail-read-point)
628 (setq smtpmail-read-point (point-min))
631 (if (or (null (car (setq greeting (smtpmail-read-response process))))
632 (not (integerp (car greeting)))
633 (>= (car greeting) 400))
641 (smtpmail-send-command process (format "EHLO %s" (smtpmail-fqdn)))
643 (if (or (null (car (setq response-code
644 (smtpmail-read-response process))))
645 (not (integerp (car response-code)))
646 (>= (car response-code) 400))
649 (smtpmail-send-command
650 process (format "HELO %s" (smtpmail-fqdn)))
652 (if (or (null (car (setq response-code
653 (smtpmail-read-response process))))
654 (not (integerp (car response-code)))
655 (>= (car response-code) 400))
657 (dolist (line (cdr (cdr response-code)))
658 (let ((name (mapcar (lambda (s) (intern (downcase s)))
659 (split-string (substring line 4) "[ ]"))))
660 (and (eq (length name) 1)
661 (setq name (car name)))
663 (cond ((memq (if (consp name) (car name) name)
664 '(verb xvrb 8bitmime onex xone
668 auth=login auth starttls))
669 (setq supported-extensions
670 (cons name supported-extensions)))
671 (smtpmail-warn-about-unknown-extensions
672 (message "Unknown extension %s" name)))))))
675 (smtpmail-find-credentials smtpmail-starttls-credentials host port)
676 (member 'starttls supported-extensions)
677 (numberp (process-id process)))
679 (smtpmail-send-command process (format "STARTTLS"))
680 (if (or (null (car (setq response-code (smtpmail-read-response process))))
681 (not (integerp (car response-code)))
682 (>= (car response-code) 400))
684 (starttls-negotiate process)
685 (setq do-starttls nil))
686 (setq do-ehlo nil))))
688 (smtpmail-try-auth-methods process supported-extensions host port)
690 (if (or (member 'onex supported-extensions)
691 (member 'xone supported-extensions))
693 (smtpmail-send-command process (format "ONEX"))
694 (if (or (null (car (setq response-code (smtpmail-read-response process))))
695 (not (integerp (car response-code)))
696 (>= (car response-code) 400))
699 (if (and smtpmail-debug-verb
700 (or (member 'verb supported-extensions)
701 (member 'xvrb supported-extensions)))
703 (smtpmail-send-command process (format "VERB"))
704 (if (or (null (car (setq response-code (smtpmail-read-response process))))
705 (not (integerp (car response-code)))
706 (>= (car response-code) 400))
709 (if (member 'xusr supported-extensions)
711 (smtpmail-send-command process (format "XUSR"))
712 (if (or (null (car (setq response-code (smtpmail-read-response process))))
713 (not (integerp (car response-code)))
714 (>= (car response-code) 400))
717 ;; MAIL FROM:<sender>
719 (if (or (member 'size supported-extensions)
720 (assoc 'size supported-extensions))
722 (with-current-buffer smtpmail-text-buffer
724 (+ (- (point-max) (point-min))
725 ;; Add one byte for each change-of-line
726 ;; because of CR-LF representation:
727 (count-lines (point-min) (point-max)))))
730 (if (member '8bitmime supported-extensions)
732 ;; Code should be added here that transforms
733 ;; the contents of the message buffer into
734 ;; something the receiving SMTP can handle.
735 ;; For a receiver that supports 8BITMIME, this
736 ;; may mean converting BINARY to BASE64, or
737 ;; adding Content-Transfer-Encoding and the
738 ;; other MIME headers. The code should also
739 ;; return an indication of what encoding the
740 ;; message buffer is now, i.e. ASCII or
746 ; (smtpmail-send-command process (format "MAIL FROM:%s@%s" (user-login-name) (smtpmail-fqdn)))
747 (smtpmail-send-command process (format "MAIL FROM:<%s>%s%s"
752 (if (or (null (car (setq response-code (smtpmail-read-response process))))
753 (not (integerp (car response-code)))
754 (>= (car response-code) 400))
758 ;; RCPT TO:<recipient>
760 (while (not (null (nth n recipient)))
761 (smtpmail-send-command process (format "RCPT TO:<%s>" (smtpmail-maybe-append-domain (nth n recipient))))
764 (setq response-code (smtpmail-read-response process))
765 (if (or (null (car response-code))
766 (not (integerp (car response-code)))
767 (>= (car response-code) 400))
773 (smtpmail-send-command process "DATA")
775 (if (or (null (car (setq response-code (smtpmail-read-response process))))
776 (not (integerp (car response-code)))
777 (>= (car response-code) 400))
782 (smtpmail-send-data process smtpmail-text-buffer)
785 (smtpmail-send-command process ".")
787 (if (or (null (car (setq response-code (smtpmail-read-response process))))
788 (not (integerp (car response-code)))
789 (>= (car response-code) 400))
794 ; (smtpmail-send-command process "QUIT")
795 ; (and (null (car (smtpmail-read-response process)))
799 (with-current-buffer (process-buffer process)
800 (smtpmail-send-command process "QUIT")
801 (smtpmail-read-response process)
803 ; (if (or (null (car (setq response-code (smtpmail-read-response process))))
804 ; (not (integerp (car response-code)))
805 ; (>= (car response-code) 400))
808 (delete-process process)
809 (unless smtpmail-debug-info
810 (kill-buffer process-buffer)))))))
813 (defun smtpmail-process-filter (process output)
814 (with-current-buffer (process-buffer process)
815 (goto-char (point-max))
818 (defun smtpmail-read-response (process)
819 (let ((case-fold-search nil)
820 (response-strings nil)
821 (response-continue t)
822 (return-value '(nil ()))
825 (while response-continue
826 (goto-char smtpmail-read-point)
827 (while (not (search-forward "\r\n" nil t))
828 (unless (memq (process-status process) '(open run))
830 (accept-process-output process)
831 (goto-char smtpmail-read-point))
833 (setq match-end (point))
834 (setq response-strings
835 (cons (buffer-substring smtpmail-read-point (- match-end 2))
838 (goto-char smtpmail-read-point)
839 (if (looking-at "[0-9]+ ")
840 (let ((begin (match-beginning 0))
842 (if smtpmail-debug-info
843 (message "%s" (car response-strings)))
845 (setq smtpmail-read-point match-end)
847 ;; ignore lines that start with "0"
848 (if (looking-at "0[0-9]+ ")
850 (setq response-continue nil)
852 (cons (string-to-number
853 (buffer-substring begin end))
854 (nreverse response-strings)))))
856 (if (looking-at "[0-9]+-")
857 (progn (if smtpmail-debug-info
858 (message "%s" (car response-strings)))
859 (setq smtpmail-read-point match-end)
860 (setq response-continue t))
862 (setq smtpmail-read-point match-end)
863 (setq response-continue nil)
865 (cons nil (nreverse response-strings)))))))
866 (setq smtpmail-read-point match-end))
870 (defun smtpmail-send-command (process command)
871 (goto-char (point-max))
872 (if (= (aref command 0) ?P)
873 (insert "PASS <omitted>\r\n")
874 (insert command "\r\n"))
875 (setq smtpmail-read-point (point))
876 (process-send-string process command)
877 (process-send-string process "\r\n"))
879 (defun smtpmail-send-data-1 (process data)
880 (goto-char (point-max))
883 (if (and (or (featurep 'mule) (featurep 'file-coding))
884 (not (null smtpmail-code-conv-from)))
885 (setq data (encode-coding-string data smtpmail-code-conv-from)))
887 (if smtpmail-debug-info
888 (insert data "\r\n"))
890 (setq smtpmail-read-point (point))
891 ;; Escape "." at start of a line
892 (if (eq (string-to-char data) ?.)
893 (process-send-string process "."))
894 (process-send-string process data)
895 (process-send-string process "\r\n")
898 (defun smtpmail-send-data (process buffer)
899 (let ((data-continue t) sending-data)
900 (with-current-buffer buffer
901 (goto-char (point-min)))
903 (with-current-buffer buffer
904 (setq sending-data (buffer-substring (point-at-bol) (point-at-eol)))
906 (setq data-continue (not (eobp))))
907 (smtpmail-send-data-1 process sending-data))))
909 (defun smtpmail-deduce-address-list (smtpmail-text-buffer header-start header-end)
910 "Get address list suitable for smtp RCPT TO: <address>."
912 (with-current-buffer smtpmail-address-buffer
915 ((case-fold-search t)
916 (simple-address-list "")
920 (insert-buffer-substring smtpmail-text-buffer header-start header-end)
921 (goto-char (point-min))
922 ;; RESENT-* fields should stop processing of regular fields.
925 (if (re-search-forward "^Resent-\\(to\\|cc\\|bcc\\):"
927 "^Resent-\\(to\\|cc\\|bcc\\):"
928 "^\\(To:\\|Cc:\\|Bcc:\\)")))
930 (while (re-search-forward addr-regexp header-end t)
932 (setq this-line (match-beginning 0))
934 ;; get any continuation lines
935 (while (and (looking-at "^[ \t]+") (< (point) header-end))
937 (setq this-line-end (point-marker))
938 (setq simple-address-list
939 (concat simple-address-list " "
940 (mail-strip-quoted-names (buffer-substring this-line this-line-end))))
943 (insert " " simple-address-list "\n")
944 (subst-char-in-region (point-min) (point-max) 10 ? t);; newline --> blank
945 (subst-char-in-region (point-min) (point-max) ?, ? t);; comma --> blank
946 (subst-char-in-region (point-min) (point-max) 9 ? t);; tab --> blank
948 (goto-char (point-min))
949 ;; tidyness in case hook is not robust when it looks at this
950 (while (re-search-forward "[ \t]+" header-end t) (replace-match " "))
952 (goto-char (point-min))
953 (let (recipient-address-list)
954 (while (re-search-forward " \\([^ ]+\\) " (point-max) t)
956 (setq recipient-address-list (cons (buffer-substring (match-beginning 1) (match-end 1))
957 recipient-address-list))
959 (setq smtpmail-recipient-address-list recipient-address-list))
967 (defun smtpmail-do-bcc (header-end)
968 "Delete [Resent-]BCC: and their continuation lines from the header area.
969 There may be multiple BCC: lines, and each may have arbitrarily
970 many continuation lines."
971 (let ((case-fold-search t))
973 (goto-char (point-min))
974 ;; iterate over all BCC: lines
975 (while (re-search-forward "^\\(RESENT-\\)?BCC:" header-end t)
976 (delete-region (match-beginning 0)
977 (progn (forward-line 1) (point)))
978 ;; get rid of any continuation lines
979 (while (and (looking-at "^[ \t].*\n") (< (point) header-end))
980 (replace-match ""))))))
985 ;;; arch-tag: a76992df-6d71-43b7-9e72-4bacc6c05466
986 ;;; smtpmail.el ends here