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 GNU Emacs.
17 ;; GNU Emacs 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 ;; GNU Emacs 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 GNU Emacs; 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 'message-make-date
"message")
76 (autoload 'message-make-message-id
"message")
77 (autoload 'rfc2104-hash
"rfc2104")
78 (autoload 'netrc-parse
"netrc")
79 (autoload 'netrc-machine
"netrc")
80 (autoload 'netrc-get
"netrc")
83 (defgroup smtpmail nil
84 "SMTP protocol for sending mail."
88 (defcustom smtpmail-default-smtp-server nil
89 "*Specify default SMTP server.
90 This only has effect if you specify it before loading the smtpmail library."
91 :type
'(choice (const nil
) string
)
94 (defcustom smtpmail-smtp-server
95 (or (getenv "SMTPSERVER") smtpmail-default-smtp-server
)
96 "*The name of the host running SMTP server."
97 :type
'(choice (const nil
) string
)
100 (defcustom smtpmail-smtp-service
25
101 "*SMTP service port number.
102 The default value would be \"smtp\" or 25 ."
103 :type
'(choice (integer :tag
"Port") (string :tag
"Service"))
106 (defcustom smtpmail-local-domain nil
107 "*Local domain name without a host name.
108 If the function (system-name) returns the full internet address,
109 don't define this value."
110 :type
'(choice (const nil
) string
)
113 (defcustom smtpmail-sendto-domain nil
114 "*Local domain name without a host name.
115 This is appended (with an @-sign) to any specified recipients which do
116 not include an @-sign, so that each RCPT TO address is fully qualified.
117 \(Some configurations of sendmail require this.)
119 Don't bother to set this unless you have get an error like:
120 Sending failed; SMTP protocol error
121 when sending mail, and the *trace of SMTP session to <somewhere>*
122 buffer includes an exchange like:
124 501 <someone>: recipient address must contain a domain
126 :type
'(choice (const nil
) string
)
129 (defcustom smtpmail-debug-info nil
130 "Whether to print info in buffer *trace of SMTP session to <somewhere>*.
131 See also `smtpmail-debug-verb' which determines if the SMTP protocol should
136 (defcustom smtpmail-debug-verb nil
137 "Whether this library sends the SMTP VERB command or not.
138 The commands enables verbose information from the SMTP server."
142 (defcustom smtpmail-code-conv-from nil
;; *junet*
143 "*smtpmail code convert from this code to *internal*..for tiny-mime.."
147 (defcustom smtpmail-queue-mail nil
148 "*Specify if mail is queued (if t) or sent immediately (if nil).
149 If queued, it is stored in the directory `smtpmail-queue-dir'
150 and sent with `smtpmail-send-queued-mail'."
154 (defcustom smtpmail-queue-dir
"~/Mail/queued-mail/"
155 "*Directory where `smtpmail.el' stores queued mail."
159 (defcustom smtpmail-auth-credentials
"~/.authinfo"
160 "Specify username and password for servers, directly or via .netrc file.
161 This variable can either be a filename pointing to a file in netrc(5)
162 format, or list of four-element lists that contain, in order,
163 `servername' (a string), `port' (an integer), `user' (a string) and
164 `password' (a string, or nil to query the user when needed). If you
165 need to enter a `realm' too, add it to the user string, so that it
166 looks like `user@realm'."
168 (repeat (list (string :tag
"Server")
169 (integer :tag
"Port")
170 (string :tag
"Username")
171 (choice (const :tag
"Query when needed" nil
)
172 (string :tag
"Password")))))
176 (defcustom smtpmail-starttls-credentials
'(("" 25 "" ""))
177 "Specify STARTTLS keys and certificates for servers.
178 This is a list of four-element list with `servername' (a string),
179 `port' (an integer), `key' (a filename) and `certificate' (a
181 If you do not have a certificate/key pair, leave the `key' and
182 `certificate' fields as `nil'. A key/certificate pair is only
183 needed if you want to use X.509 client authenticated
185 :type
'(repeat (list (string :tag
"Server")
186 (integer :tag
"Port")
188 (file :tag
"Certificate")))
192 (defcustom smtpmail-warn-about-unknown-extensions nil
193 "*If set, print warnings about unknown SMTP extensions.
194 This is mainly useful for development purposes, to learn about
195 new SMTP extensions that might be useful to support."
200 (defvar smtpmail-queue-index-file
"index"
201 "File name of queued mail index,
202 This is relative to `smtpmail-queue-dir'.")
204 (defvar smtpmail-address-buffer
)
205 (defvar smtpmail-recipient-address-list
)
207 (defvar smtpmail-queue-counter
0)
209 ;; Buffer-local variable.
210 (defvar smtpmail-read-point
)
212 (defvar smtpmail-queue-index
(concat smtpmail-queue-dir
213 smtpmail-queue-index-file
))
215 (defconst smtpmail-auth-supported
'(cram-md5 plain login
)
216 "List of supported SMTP AUTH mechanisms.")
222 (defvar smtpmail-mail-address nil
223 "Value to use for envelope-from address for mail from ambient buffer.")
226 (defun smtpmail-send-it ()
227 (let ((errbuf (if mail-interactive
228 (generate-new-buffer " smtpmail errors")
230 (tembuf (generate-new-buffer " smtpmail temp"))
231 (case-fold-search nil
)
233 (mailbuf (current-buffer))
234 ;; Examine this variable now, so that
235 ;; local binding in the mail buffer will take effect.
236 (smtpmail-mail-address
237 (or (and mail-specify-envelope-from
(mail-envelope-from))
239 (smtpmail-code-conv-from
240 (if enable-multibyte-characters
241 (let ((sendmail-coding-system smtpmail-code-conv-from
))
242 (select-message-coding-system)))))
247 (insert-buffer-substring mailbuf
)
248 (goto-char (point-max))
249 ;; require one newline at the end.
250 (or (= (preceding-char) ?
\n)
252 ;; Change header-delimiter to be what sendmail expects.
253 (mail-sendmail-undelimit-header)
254 (setq delimline
(point-marker))
255 ;; (sendmail-synch-aliases)
257 (expand-mail-aliases (point-min) delimline
))
258 (goto-char (point-min))
259 ;; ignore any blank lines in the header
260 (while (and (re-search-forward "\n\n\n*" delimline t
)
261 (< (point) delimline
))
262 (replace-match "\n"))
263 (let ((case-fold-search t
))
264 ;; We used to process Resent-... headers here,
265 ;; but it was not done properly, and the job
266 ;; is done correctly in smtpmail-deduce-address-list.
267 ;; Don't send out a blank subject line
268 (goto-char (point-min))
269 (if (re-search-forward "^Subject:\\([ \t]*\n\\)+\\b" delimline t
)
271 ;; This one matches a Subject just before the header delimiter.
272 (if (and (re-search-forward "^Subject:\\([ \t]*\n\\)+" delimline t
)
273 (= (match-end 0) delimline
))
275 ;; Put the "From:" field in unless for some odd reason
276 ;; they put one in themselves.
277 (goto-char (point-min))
278 (if (not (re-search-forward "^From:" delimline t
))
279 (let* ((login smtpmail-mail-address
)
280 (fullname (user-full-name)))
281 (cond ((eq mail-from-style
'angles
)
282 (insert "From: " fullname
)
283 (let ((fullname-start (+ (point-min) 6))
284 (fullname-end (point-marker)))
285 (goto-char fullname-start
)
286 ;; Look for a character that cannot appear unquoted
287 ;; according to RFC 822.
288 (if (re-search-forward "[^- !#-'*+/-9=?A-Z^-~]"
291 ;; Quote fullname, escaping specials.
292 (goto-char fullname-start
)
294 (while (re-search-forward "[\"\\]"
296 (replace-match "\\\\\\&" t
))
298 (insert " <" login
">\n"))
299 ((eq mail-from-style
'parens
)
300 (insert "From: " login
" (")
301 (let ((fullname-start (point)))
303 (let ((fullname-end (point-marker)))
304 (goto-char fullname-start
)
305 ;; RFC 822 says \ and nonmatching parentheses
306 ;; must be escaped in comments.
307 ;; Escape every instance of ()\ ...
308 (while (re-search-forward "[()\\]" fullname-end
1)
309 (replace-match "\\\\\\&" t
))
310 ;; ... then undo escaping of matching parentheses,
311 ;; including matching nested parentheses.
312 (goto-char fullname-start
)
313 (while (re-search-forward
314 "\\(\\=\\|[^\\]\\(\\\\\\\\\\)*\\)\\\\(\\(\\([^\\]\\|\\\\\\\\\\)*\\)\\\\)"
316 (replace-match "\\1(\\3)" t
)
317 (goto-char fullname-start
))))
319 ((null mail-from-style
)
320 (insert "From: " login
"\n")))))
321 ;; Insert a `Message-Id:' field if there isn't one yet.
322 (goto-char (point-min))
323 (unless (re-search-forward "^Message-Id:" delimline t
)
324 (insert "Message-Id: " (message-make-message-id) "\n"))
325 ;; Insert a `Date:' field if there isn't one yet.
326 (goto-char (point-min))
327 (unless (re-search-forward "^Date:" delimline t
)
328 (insert "Date: " (message-make-date) "\n"))
329 ;; Insert an extra newline if we need it to work around
330 ;; Sun's bug that swallows newlines.
331 (goto-char (1+ delimline
))
332 (if (eval mail-mailer-swallows-blank-line
)
334 ;; Find and handle any FCC fields.
335 (goto-char (point-min))
336 (if (re-search-forward "^FCC:" delimline t
)
337 (mail-do-fcc delimline
))
339 (with-current-buffer errbuf
344 (setq smtpmail-address-buffer
(generate-new-buffer "*smtp-mail*"))
345 (setq smtpmail-recipient-address-list
346 (smtpmail-deduce-address-list tembuf
(point-min) delimline
))
347 (kill-buffer smtpmail-address-buffer
)
349 (smtpmail-do-bcc delimline
)
351 (if (not smtpmail-queue-mail
)
352 (if (not (null smtpmail-recipient-address-list
))
353 (if (not (smtpmail-via-smtp
354 smtpmail-recipient-address-list tembuf
))
355 (error "Sending failed; SMTP protocol error"))
356 (error "Sending failed; no recipients"))
360 (format-time-string "%Y-%m-%d_%H:%M:%S")
361 (setq smtpmail-queue-counter
362 (1+ smtpmail-queue-counter
)))
364 (file-data (convert-standard-filename file-data
))
365 (file-elisp (concat file-data
".el"))
366 (buffer-data (create-file-buffer file-data
))
367 (buffer-elisp (create-file-buffer file-elisp
))
368 (buffer-scratch "*queue-mail*"))
369 (unless (file-exists-p smtpmail-queue-dir
)
370 (make-directory smtpmail-queue-dir t
))
371 (with-current-buffer buffer-data
373 (insert-buffer-substring tembuf
)
374 (write-file file-data
)
375 (set-buffer buffer-elisp
)
378 "(setq smtpmail-recipient-address-list '"
379 (prin1-to-string smtpmail-recipient-address-list
)
381 (write-file file-elisp
)
382 (set-buffer (generate-new-buffer buffer-scratch
))
383 (insert (concat file-data
"\n"))
384 (append-to-file (point-min)
386 smtpmail-queue-index
)
388 (kill-buffer buffer-scratch
)
389 (kill-buffer buffer-data
)
390 (kill-buffer buffer-elisp
))))
393 (kill-buffer errbuf
)))))
396 (defun smtpmail-send-queued-mail ()
397 "Send mail that was queued as a result of setting `smtpmail-queue-mail'."
400 ;;; Get index, get first mail, send it, update index, get second
401 ;;; mail, send it, etc...
403 (insert-file-contents smtpmail-queue-index
)
404 (goto-char (point-min))
406 (setq file-msg
(buffer-substring (point) (line-end-position)))
408 ;; Insert the message literally: it is already encoded as per
409 ;; the MIME headers, and code conversions might guess the
412 (let ((coding-system-for-read 'no-conversion
))
413 (insert-file-contents file-msg
))
414 (let ((smtpmail-mail-address
415 (or (and mail-specify-envelope-from
(mail-envelope-from))
417 (if (not (null smtpmail-recipient-address-list
))
418 (if (not (smtpmail-via-smtp smtpmail-recipient-address-list
420 (error "Sending failed; SMTP protocol error"))
421 (error "Sending failed; no recipients"))))
422 (delete-file file-msg
)
423 (delete-file (concat file-msg
".el"))
424 (delete-region (point-at-bol) (point-at-bol 2)))
425 (write-region (point-min) (point-max) smtpmail-queue-index
))))
427 ;(defun smtpmail-via-smtp (host,port,sender,destination,smtpmail-text-buffer)
429 (defun smtpmail-fqdn ()
430 (if smtpmail-local-domain
431 (concat (system-name) "." smtpmail-local-domain
)
434 (defsubst smtpmail-cred-server
(cred)
437 (defsubst smtpmail-cred-port
(cred)
440 (defsubst smtpmail-cred-key
(cred)
443 (defsubst smtpmail-cred-user
(cred)
446 (defsubst smtpmail-cred-cert
(cred)
449 (defsubst smtpmail-cred-passwd
(cred)
452 (defun smtpmail-find-credentials (cred server port
)
455 (while (setq el
(pop l
))
456 (when (and (equal server
(smtpmail-cred-server el
))
457 (equal port
(smtpmail-cred-port el
)))
458 (throw 'done el
))))))
460 (defun smtpmail-maybe-append-domain (recipient)
461 (if (or (not smtpmail-sendto-domain
)
462 (string-match "@" recipient
))
464 (concat recipient
"@" smtpmail-sendto-domain
)))
466 (defun smtpmail-intersection (list1 list2
)
469 (when (memq el2 list1
)
473 (defvar starttls-extra-args
)
474 (defvar starttls-extra-arguments
)
476 (defun smtpmail-open-stream (process-buffer host port
)
477 (let ((cred (smtpmail-find-credentials
478 smtpmail-starttls-credentials host port
)))
479 (if (null (and cred
(condition-case ()
482 (call-process (if starttls-use-gnutls
483 starttls-gnutls-program
487 (open-network-stream "SMTP" process-buffer host port
)
488 (let* ((cred-key (smtpmail-cred-key cred
))
489 (cred-cert (smtpmail-cred-cert cred
))
493 (when (and (stringp cred-key
) (stringp cred-cert
)
495 (setq cred-key
(expand-file-name cred-key
)))
497 (setq cred-cert
(expand-file-name cred-cert
))))
498 (list "--key-file" cred-key
"--cert-file" cred-cert
))))
499 (starttls-extra-arguments
501 starttls-extra-arguments
502 (when (and (stringp cred-key
) (stringp cred-cert
)
504 (setq cred-key
(expand-file-name cred-key
)))
506 (setq cred-cert
(expand-file-name cred-cert
))))
507 (list "--x509keyfile" cred-key
"--x509certfile" cred-cert
)))))
508 (starttls-open-stream "SMTP" process-buffer host port
)))))
510 (defun smtpmail-try-auth-methods (process supported-extensions host port
)
511 (let* ((mechs (cdr-safe (assoc 'auth supported-extensions
)))
512 (mech (car (smtpmail-intersection smtpmail-auth-supported mechs
)))
513 (cred (if (stringp smtpmail-auth-credentials
)
514 (let* ((netrc (netrc-parse smtpmail-auth-credentials
))
515 (port-name (format "%s" (or port
"smtp")))
516 (hostentry (netrc-machine netrc host port-name
520 (netrc-get hostentry
"login")
521 (netrc-get hostentry
"password"))))
522 (smtpmail-find-credentials
523 smtpmail-auth-credentials host port
)))
525 (or (smtpmail-cred-passwd cred
)
527 (format "SMTP password for %s:%s: "
528 (smtpmail-cred-server cred
)
529 (smtpmail-cred-port cred
))))))
531 (when (and cred mech
)
534 (smtpmail-send-command process
(upcase (format "AUTH %s" mech
)))
535 (if (or (null (car (setq ret
(smtpmail-read-response process
))))
536 (not (integerp (car ret
)))
539 (when (eq (car ret
) 334)
540 (let* ((challenge (substring (cadr ret
) 4))
541 (decoded (base64-decode-string challenge
))
542 (hash (rfc2104-hash 'md5
64 16 passwd decoded
))
543 (response (concat (smtpmail-cred-user cred
) " " hash
))
544 ;; Osamu Yamane <yamane@green.ocn.ne.jp>:
545 ;; SMTP auth fails because the SMTP server identifies
546 ;; only the first part of the string (delimited by
547 ;; new line characters) as a response from the
548 ;; client, and the rest as distinct commands.
550 ;; In my case, the response string is 80 characters
551 ;; long. Without the no-line-break option for
552 ;; base64-encode-sting, only the first 76 characters
553 ;; are taken as a response to the server, and the
554 ;; authentication fails.
555 (encoded (base64-encode-string response t
)))
556 (smtpmail-send-command process
(format "%s" encoded
))
557 (if (or (null (car (setq ret
(smtpmail-read-response process
))))
558 (not (integerp (car ret
)))
560 (throw 'done nil
)))))
562 (smtpmail-send-command process
"AUTH LOGIN")
563 (if (or (null (car (setq ret
(smtpmail-read-response process
))))
564 (not (integerp (car ret
)))
567 (smtpmail-send-command
568 process
(base64-encode-string (smtpmail-cred-user cred
) t
))
569 (if (or (null (car (setq ret
(smtpmail-read-response process
))))
570 (not (integerp (car ret
)))
573 (smtpmail-send-command process
(base64-encode-string passwd t
))
574 (if (or (null (car (setq ret
(smtpmail-read-response process
))))
575 (not (integerp (car ret
)))
579 ;; We used to send an empty initial request, and wait for an
580 ;; empty response, and then send the password, but this
581 ;; violate a SHOULD in RFC 2222 paragraph 5.1. Note that this
582 ;; is not sent if the server did not advertise AUTH PLAIN in
583 ;; the EHLO response. See RFC 2554 for more info.
584 (smtpmail-send-command process
585 (concat "AUTH PLAIN "
586 (base64-encode-string
588 (smtpmail-cred-user cred
)
591 (if (or (null (car (setq ret
(smtpmail-read-response process
))))
592 (not (integerp (car ret
)))
593 (not (equal (car ret
) 235)))
597 (error "Mechanism %s not implemented" mech
)))
598 ;; Remember the password.
599 (when (and (not (stringp smtpmail-auth-credentials
))
600 (null (smtpmail-cred-passwd cred
)))
601 (setcar (cdr (cdr (cdr cred
))) passwd
)))))
603 (defun smtpmail-via-smtp (recipient smtpmail-text-buffer
)
605 (host (or smtpmail-smtp-server
606 (error "`smtpmail-smtp-server' not defined")))
607 (port smtpmail-smtp-service
)
608 ;; smtpmail-mail-address should be set to the appropriate
609 ;; buffer-local value by the caller, but in case not:
610 (envelope-from (or smtpmail-mail-address
611 (and mail-specify-envelope-from
612 (mail-envelope-from))
617 (supported-extensions '()))
620 ;; get or create the trace buffer
622 (get-buffer-create (format "*trace of SMTP session to %s*" host
)))
624 ;; clear the trace buffer of old output
625 (with-current-buffer process-buffer
626 (setq buffer-undo-list t
)
629 ;; open the connection to the server
630 (setq process
(smtpmail-open-stream process-buffer host port
))
631 (and (null process
) (throw 'done nil
))
633 ;; set the send-filter
634 (set-process-filter process
'smtpmail-process-filter
)
636 (with-current-buffer process-buffer
637 (set-buffer-process-coding-system 'raw-text-unix
'raw-text-unix
)
638 (make-local-variable 'smtpmail-read-point
)
639 (setq smtpmail-read-point
(point-min))
642 (if (or (null (car (setq greeting
(smtpmail-read-response process
))))
643 (not (integerp (car greeting
)))
644 (>= (car greeting
) 400))
652 (smtpmail-send-command process
(format "EHLO %s" (smtpmail-fqdn)))
654 (if (or (null (car (setq response-code
655 (smtpmail-read-response process
))))
656 (not (integerp (car response-code
)))
657 (>= (car response-code
) 400))
660 (smtpmail-send-command
661 process
(format "HELO %s" (smtpmail-fqdn)))
663 (if (or (null (car (setq response-code
664 (smtpmail-read-response process
))))
665 (not (integerp (car response-code
)))
666 (>= (car response-code
) 400))
668 (dolist (line (cdr (cdr response-code
)))
669 (let ((name (mapcar (lambda (s) (intern (downcase s
)))
670 (split-string (substring line
4) "[ ]"))))
671 (and (eq (length name
) 1)
672 (setq name
(car name
)))
674 (cond ((memq (if (consp name
) (car name
) name
)
675 '(verb xvrb
8bitmime onex xone
679 auth
=login auth starttls
))
680 (setq supported-extensions
681 (cons name supported-extensions
)))
682 (smtpmail-warn-about-unknown-extensions
683 (message "Unknown extension %s" name
)))))))
686 (smtpmail-find-credentials smtpmail-starttls-credentials host port
)
687 (member 'starttls supported-extensions
)
688 (numberp (process-id process
)))
690 (smtpmail-send-command process
(format "STARTTLS"))
691 (if (or (null (car (setq response-code
(smtpmail-read-response process
))))
692 (not (integerp (car response-code
)))
693 (>= (car response-code
) 400))
695 (starttls-negotiate process
)
696 (setq do-starttls nil
))
697 (setq do-ehlo nil
))))
699 (smtpmail-try-auth-methods process supported-extensions host port
)
701 (if (or (member 'onex supported-extensions
)
702 (member 'xone supported-extensions
))
704 (smtpmail-send-command process
(format "ONEX"))
705 (if (or (null (car (setq response-code
(smtpmail-read-response process
))))
706 (not (integerp (car response-code
)))
707 (>= (car response-code
) 400))
710 (if (and smtpmail-debug-verb
711 (or (member 'verb supported-extensions
)
712 (member 'xvrb supported-extensions
)))
714 (smtpmail-send-command process
(format "VERB"))
715 (if (or (null (car (setq response-code
(smtpmail-read-response process
))))
716 (not (integerp (car response-code
)))
717 (>= (car response-code
) 400))
720 (if (member 'xusr supported-extensions
)
722 (smtpmail-send-command process
(format "XUSR"))
723 (if (or (null (car (setq response-code
(smtpmail-read-response process
))))
724 (not (integerp (car response-code
)))
725 (>= (car response-code
) 400))
728 ;; MAIL FROM:<sender>
730 (if (or (member 'size supported-extensions
)
731 (assoc 'size supported-extensions
))
733 (with-current-buffer smtpmail-text-buffer
735 (+ (- (point-max) (point-min))
736 ;; Add one byte for each change-of-line
737 ;; because of CR-LF representation:
738 (count-lines (point-min) (point-max)))))
741 (if (member '8bitmime supported-extensions
)
743 ;; Code should be added here that transforms
744 ;; the contents of the message buffer into
745 ;; something the receiving SMTP can handle.
746 ;; For a receiver that supports 8BITMIME, this
747 ;; may mean converting BINARY to BASE64, or
748 ;; adding Content-Transfer-Encoding and the
749 ;; other MIME headers. The code should also
750 ;; return an indication of what encoding the
751 ;; message buffer is now, i.e. ASCII or
757 ; (smtpmail-send-command process (format "MAIL FROM:%s@%s" (user-login-name) (smtpmail-fqdn)))
758 (smtpmail-send-command process
(format "MAIL FROM:<%s>%s%s"
763 (if (or (null (car (setq response-code
(smtpmail-read-response process
))))
764 (not (integerp (car response-code
)))
765 (>= (car response-code
) 400))
769 ;; RCPT TO:<recipient>
771 (while (not (null (nth n recipient
)))
772 (smtpmail-send-command process
(format "RCPT TO:<%s>" (smtpmail-maybe-append-domain (nth n recipient
))))
775 (setq response-code
(smtpmail-read-response process
))
776 (if (or (null (car response-code
))
777 (not (integerp (car response-code
)))
778 (>= (car response-code
) 400))
784 (smtpmail-send-command process
"DATA")
786 (if (or (null (car (setq response-code
(smtpmail-read-response process
))))
787 (not (integerp (car response-code
)))
788 (>= (car response-code
) 400))
793 (smtpmail-send-data process smtpmail-text-buffer
)
796 (smtpmail-send-command process
".")
798 (if (or (null (car (setq response-code
(smtpmail-read-response process
))))
799 (not (integerp (car response-code
)))
800 (>= (car response-code
) 400))
805 ; (smtpmail-send-command process "QUIT")
806 ; (and (null (car (smtpmail-read-response process)))
810 (with-current-buffer (process-buffer process
)
811 (smtpmail-send-command process
"QUIT")
812 (smtpmail-read-response process
)
814 ; (if (or (null (car (setq response-code (smtpmail-read-response process))))
815 ; (not (integerp (car response-code)))
816 ; (>= (car response-code) 400))
819 (delete-process process
)
820 (unless smtpmail-debug-info
821 (kill-buffer process-buffer
)))))))
824 (defun smtpmail-process-filter (process output
)
825 (with-current-buffer (process-buffer process
)
826 (goto-char (point-max))
829 (defun smtpmail-read-response (process)
830 (let ((case-fold-search nil
)
831 (response-strings nil
)
832 (response-continue t
)
833 (return-value '(nil ()))
836 (while response-continue
837 (goto-char smtpmail-read-point
)
838 (while (not (search-forward "\r\n" nil t
))
839 (unless (memq (process-status process
) '(open run
))
841 (accept-process-output process
)
842 (goto-char smtpmail-read-point
))
844 (setq match-end
(point))
845 (setq response-strings
846 (cons (buffer-substring smtpmail-read-point
(- match-end
2))
849 (goto-char smtpmail-read-point
)
850 (if (looking-at "[0-9]+ ")
851 (let ((begin (match-beginning 0))
853 (if smtpmail-debug-info
854 (message "%s" (car response-strings
)))
856 (setq smtpmail-read-point match-end
)
858 ;; ignore lines that start with "0"
859 (if (looking-at "0[0-9]+ ")
861 (setq response-continue nil
)
863 (cons (string-to-number
864 (buffer-substring begin end
))
865 (nreverse response-strings
)))))
867 (if (looking-at "[0-9]+-")
868 (progn (if smtpmail-debug-info
869 (message "%s" (car response-strings
)))
870 (setq smtpmail-read-point match-end
)
871 (setq response-continue t
))
873 (setq smtpmail-read-point match-end
)
874 (setq response-continue nil
)
876 (cons nil
(nreverse response-strings
)))))))
877 (setq smtpmail-read-point match-end
))
881 (defun smtpmail-send-command (process command
)
882 (goto-char (point-max))
883 (if (= (aref command
0) ?P
)
884 (insert "PASS <omitted>\r\n")
885 (insert command
"\r\n"))
886 (setq smtpmail-read-point
(point))
887 (process-send-string process command
)
888 (process-send-string process
"\r\n"))
890 (defun smtpmail-send-data-1 (process data
)
891 (goto-char (point-max))
893 (if (and (multibyte-string-p data
)
894 smtpmail-code-conv-from
)
895 (setq data
(string-as-multibyte
896 (encode-coding-string data smtpmail-code-conv-from
))))
898 (if smtpmail-debug-info
899 (insert data
"\r\n"))
901 (setq smtpmail-read-point
(point))
902 ;; Escape "." at start of a line
903 (if (eq (string-to-char data
) ?.
)
904 (process-send-string process
"."))
905 (process-send-string process data
)
906 (process-send-string process
"\r\n")
909 (defun smtpmail-send-data (process buffer
)
910 (let ((data-continue t
) sending-data
)
911 (with-current-buffer buffer
912 (goto-char (point-min)))
914 (with-current-buffer buffer
915 (setq sending-data
(buffer-substring (point-at-bol) (point-at-eol)))
917 (setq data-continue
(not (eobp))))
918 (smtpmail-send-data-1 process sending-data
))))
920 (defun smtpmail-deduce-address-list (smtpmail-text-buffer header-start header-end
)
921 "Get address list suitable for smtp RCPT TO: <address>."
923 (with-current-buffer smtpmail-address-buffer
926 ((case-fold-search t
)
927 (simple-address-list "")
931 (insert-buffer-substring smtpmail-text-buffer header-start header-end
)
932 (goto-char (point-min))
933 ;; RESENT-* fields should stop processing of regular fields.
936 (if (re-search-forward "^Resent-\\(to\\|cc\\|bcc\\):"
938 "^Resent-\\(to\\|cc\\|bcc\\):"
939 "^\\(To:\\|Cc:\\|Bcc:\\)")))
941 (while (re-search-forward addr-regexp header-end t
)
943 (setq this-line
(match-beginning 0))
945 ;; get any continuation lines
946 (while (and (looking-at "^[ \t]+") (< (point) header-end
))
948 (setq this-line-end
(point-marker))
949 (setq simple-address-list
950 (concat simple-address-list
" "
951 (mail-strip-quoted-names (buffer-substring this-line this-line-end
))))
954 (insert " " simple-address-list
"\n")
955 (subst-char-in-region (point-min) (point-max) 10 ? t
);; newline --> blank
956 (subst-char-in-region (point-min) (point-max) ?
, ? t
);; comma --> blank
957 (subst-char-in-region (point-min) (point-max) 9 ? t
);; tab --> blank
959 (goto-char (point-min))
960 ;; tidyness in case hook is not robust when it looks at this
961 (while (re-search-forward "[ \t]+" header-end t
) (replace-match " "))
963 (goto-char (point-min))
964 (let (recipient-address-list)
965 (while (re-search-forward " \\([^ ]+\\) " (point-max) t
)
967 (setq recipient-address-list
(cons (buffer-substring (match-beginning 1) (match-end 1))
968 recipient-address-list
))
970 (setq smtpmail-recipient-address-list recipient-address-list
))
978 (defun smtpmail-do-bcc (header-end)
979 "Delete [Resent-]BCC: and their continuation lines from the header area.
980 There may be multiple BCC: lines, and each may have arbitrarily
981 many continuation lines."
982 (let ((case-fold-search t
))
984 (goto-char (point-min))
985 ;; iterate over all BCC: lines
986 (while (re-search-forward "^\\(RESENT-\\)?BCC:" header-end t
)
987 (delete-region (match-beginning 0)
988 (progn (forward-line 1) (point)))
989 ;; get rid of any continuation lines
990 (while (and (looking-at "^[ \t].*\n") (< (point) header-end
))
991 (replace-match ""))))))
996 ;;; arch-tag: a76992df-6d71-43b7-9e72-4bacc6c05466
997 ;;; smtpmail.el ends here