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092af6d8 | 1 | ;;; smtpmail.el --- simple SMTP protocol (RFC 821) for sending mail |
24975917 | 2 | |
1b62b062 | 3 | ;; Copyright (C) 1995, 1996, 2001 Free Software Foundation, Inc. |
24975917 RS |
4 | |
5 | ;; Author: Tomoji Kagatani <kagatani@rbc.ncl.omron.co.jp> | |
9056f1c9 RS |
6 | ;; Maintainer: Simon Josefsson <simon@josefsson.org> |
7 | ;; w32 Maintainer: Brian D. Carlstrom <bdc@ai.mit.edu> | |
c50d5ce0 | 8 | ;; ESMTP support: Simon Leinen <simon@switch.ch> |
2b5c7e03 GM |
9 | ;; Hacked by Mike Taylor, 11th October 1999 to add support for |
10 | ;; automatically appending a domain to RCPT TO: addresses. | |
9056f1c9 | 11 | ;; AUTH=LOGIN support: Stephen Cranefield <scranefield@infoscience.otago.ac.nz> |
24975917 RS |
12 | ;; Keywords: mail |
13 | ||
14 | ;; This file is part of GNU Emacs. | |
15 | ||
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) | |
19 | ;; any later version. | |
20 | ||
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. | |
25 | ||
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. | |
30 | ||
31 | ;;; Commentary: | |
32 | ||
33 | ;; Send Mail to smtp host from smtpmail temp buffer. | |
24975917 | 34 | |
f38d3514 | 35 | ;; Please add these lines in your .emacs(_emacs) or use customize. |
24975917 | 36 | ;; |
f38d3514 | 37 | ;;(setq send-mail-function 'smtpmail-send-it) ; if you use `mail' |
a95f291d | 38 | ;;(setq message-send-mail-function 'smtpmail-send-it) ; if you are using Gnus. |
24975917 | 39 | ;;(setq smtpmail-default-smtp-server "YOUR SMTP HOST") |
24975917 | 40 | ;;(setq smtpmail-local-domain "YOUR DOMAIN NAME") |
e889eabc | 41 | ;;(setq smtpmail-sendto-domain "YOUR DOMAIN NAME") |
f38d3514 | 42 | ;;(setq smtpmail-debug-info t) ; only to debug problems |
9056f1c9 RS |
43 | ;;(setq smtpmail-auth-credentials |
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"))) | |
24975917 | 47 | |
308bc5d8 RS |
48 | ;; To queue mail, set smtpmail-queue-mail to t and use |
49 | ;; smtpmail-send-queued-mail to send. | |
50 | ||
9056f1c9 RS |
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 | |
55 | ;; support below. | |
56 | ||
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 | |
60 | ||
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 | |
308bc5d8 | 65 | |
24975917 RS |
66 | ;;; Code: |
67 | ||
68 | (require 'sendmail) | |
308bc5d8 | 69 | (require 'time-stamp) |
9056f1c9 RS |
70 | (autoload 'starttls-open-stream "starttls") |
71 | (autoload 'starttls-negotiate "starttls") | |
72 | (autoload 'mail-strip-quoted-names "mail-utils") | |
21bf0d6c SM |
73 | (autoload 'message-make-date "message") |
74 | (autoload 'message-make-message-id "message") | |
9056f1c9 | 75 | (autoload 'rfc2104-hash "rfc2104") |
24975917 RS |
76 | |
77 | ;;; | |
00ed33e7 RS |
78 | (defgroup smtpmail nil |
79 | "SMTP protocol for sending mail." | |
80 | :group 'mail) | |
24975917 | 81 | |
00ed33e7 RS |
82 | |
83 | (defcustom smtpmail-default-smtp-server nil | |
84 | "*Specify default SMTP server." | |
85 | :type '(choice (const nil) string) | |
86 | :group 'smtpmail) | |
87 | ||
88 | (defcustom smtpmail-smtp-server | |
e2f7c221 | 89 | (or (getenv "SMTPSERVER") smtpmail-default-smtp-server) |
00ed33e7 RS |
90 | "*The name of the host running SMTP server." |
91 | :type '(choice (const nil) string) | |
92 | :group 'smtpmail) | |
24975917 | 93 | |
00ed33e7 | 94 | (defcustom smtpmail-smtp-service 25 |
9056f1c9 RS |
95 | "*SMTP service port number. |
96 | The default value would be \"smtp\" or 25 ." | |
97 | :type '(choice (integer :tag "Port") (string :tag "Service")) | |
00ed33e7 | 98 | :group 'smtpmail) |
24975917 | 99 | |
00ed33e7 | 100 | (defcustom smtpmail-local-domain nil |
24975917 RS |
101 | "*Local domain name without a host name. |
102 | If the function (system-name) returns the full internet address, | |
00ed33e7 RS |
103 | don't define this value." |
104 | :type '(choice (const nil) string) | |
105 | :group 'smtpmail) | |
106 | ||
e889eabc GM |
107 | (defcustom smtpmail-sendto-domain nil |
108 | "*Local domain name without a host name. | |
109 | This is appended (with an @-sign) to any specified recipients which do | |
110 | not include an @-sign, so that each RCPT TO address is fully qualified. | |
111 | \(Some configurations of sendmail require this.) | |
112 | ||
113 | Don't bother to set this unless you have get an error like: | |
114 | Sending failed; SMTP protocol error | |
115 | when sending mail, and the *trace of SMTP session to <somewhere>* | |
116 | buffer includes an exchange like: | |
117 | RCPT TO: <someone> | |
118 | 501 <someone>: recipient address must contain a domain | |
119 | " | |
120 | :type '(choice (const nil) string) | |
121 | :group 'smtpmail) | |
122 | ||
00ed33e7 | 123 | (defcustom smtpmail-debug-info nil |
9056f1c9 RS |
124 | "Whether to print info in buffer *trace of SMTP session to <somewhere>*. |
125 | See also `smtpmail-debug-verb' which determines if the SMTP protocol should | |
126 | be verbose as well." | |
127 | :type 'boolean | |
128 | :group 'smtpmail) | |
129 | ||
130 | (defcustom smtpmail-debug-verb nil | |
131 | "Whether this library sends the SMTP VERB command or not. | |
132 | The commands enables verbose information from the SMTP server." | |
00ed33e7 RS |
133 | :type 'boolean |
134 | :group 'smtpmail) | |
135 | ||
136 | (defcustom smtpmail-code-conv-from nil ;; *junet* | |
137 | "*smtpmail code convert from this code to *internal*..for tiny-mime.." | |
138 | :type 'boolean | |
139 | :group 'smtpmail) | |
24975917 | 140 | |
308bc5d8 RS |
141 | (defcustom smtpmail-queue-mail nil |
142 | "*Specify if mail is queued (if t) or sent immediately (if nil). | |
143 | If queued, it is stored in the directory `smtpmail-queue-dir' | |
144 | and sent with `smtpmail-send-queued-mail'." | |
145 | :type 'boolean | |
146 | :group 'smtpmail) | |
147 | ||
148 | (defcustom smtpmail-queue-dir "~/Mail/queued-mail/" | |
149 | "*Directory where `smtpmail.el' stores queued mail." | |
150 | :type 'directory | |
151 | :group 'smtpmail) | |
152 | ||
9056f1c9 RS |
153 | (defcustom smtpmail-auth-credentials '(("" 25 "" nil)) |
154 | "Specify username and password for servers. | |
155 | It is a list of four-element lists that contain, in order, | |
156 | `servername' (a string), `port' (an integer), `user' (a string) and | |
157 | `password' (a string, or nil to query the user when needed). | |
158 | If you need to enter a `realm' too, add it to the user string, so that | |
159 | it looks like `user@realm'." | |
160 | :type '(repeat (list (string :tag "Server") | |
161 | (integer :tag "Port") | |
162 | (string :tag "Username") | |
163 | (choice (const :tag "Query when needed" nil) | |
164 | (string :tag "Password")))) | |
165 | :version "21.1" | |
166 | :group 'smtpmail) | |
167 | ||
168 | (defcustom smtpmail-starttls-credentials '(("" 25 "" "")) | |
169 | "Specify STARTTLS keys and certificates for servers. | |
170 | This is a list of four-element list with `servername' (a string), | |
171 | `port' (an integer), `key' (a filename) and `certificate' (a filename)." | |
172 | :type '(repeat (list (string :tag "Server") | |
173 | (integer :tag "Port") | |
174 | (file :tag "Key") | |
175 | (file :tag "Certificate"))) | |
176 | :version "21.1" | |
177 | :group 'smtpmail) | |
178 | ||
1b62b062 GM |
179 | (defcustom smtpmail-warn-about-unknown-extensions nil |
180 | "*If set, print warnings about unknown SMTP extensions. | |
181 | This is mainly useful for development purposes, to learn about | |
182 | new SMTP extensions that might be useful to support." | |
183 | :type 'boolean | |
fa87f673 | 184 | :version "21.1" |
1b62b062 GM |
185 | :group 'smtpmail) |
186 | ||
308bc5d8 RS |
187 | (defvar smtpmail-queue-index-file "index" |
188 | "File name of queued mail index, | |
189 | This is relative to `smtpmail-queue-dir'.") | |
190 | ||
fb035bbf RS |
191 | (defvar smtpmail-address-buffer) |
192 | (defvar smtpmail-recipient-address-list) | |
193 | ||
194 | ;; Buffer-local variable. | |
195 | (defvar smtpmail-read-point) | |
196 | ||
308bc5d8 RS |
197 | (defvar smtpmail-queue-index (concat smtpmail-queue-dir |
198 | smtpmail-queue-index-file)) | |
199 | ||
9056f1c9 RS |
200 | (defconst smtpmail-auth-supported '(cram-md5 login) |
201 | "List of supported SMTP AUTH mechanisms.") | |
202 | ||
24975917 RS |
203 | ;;; |
204 | ;;; | |
205 | ;;; | |
206 | ||
f38d3514 | 207 | ;;;###autoload |
24975917 RS |
208 | (defun smtpmail-send-it () |
209 | (let ((errbuf (if mail-interactive | |
210 | (generate-new-buffer " smtpmail errors") | |
211 | 0)) | |
212 | (tembuf (generate-new-buffer " smtpmail temp")) | |
213 | (case-fold-search nil) | |
24975917 | 214 | delimline |
83af570e KH |
215 | (mailbuf (current-buffer)) |
216 | (smtpmail-code-conv-from | |
217 | (if enable-multibyte-characters | |
218 | (let ((sendmail-coding-system smtpmail-code-conv-from)) | |
219 | (select-message-coding-system))))) | |
24975917 RS |
220 | (unwind-protect |
221 | (save-excursion | |
222 | (set-buffer tembuf) | |
223 | (erase-buffer) | |
224 | (insert-buffer-substring mailbuf) | |
225 | (goto-char (point-max)) | |
226 | ;; require one newline at the end. | |
227 | (or (= (preceding-char) ?\n) | |
228 | (insert ?\n)) | |
229 | ;; Change header-delimiter to be what sendmail expects. | |
92a3f23d | 230 | (mail-sendmail-undelimit-header) |
24975917 | 231 | (setq delimline (point-marker)) |
e2f7c221 | 232 | ;; (sendmail-synch-aliases) |
24975917 RS |
233 | (if mail-aliases |
234 | (expand-mail-aliases (point-min) delimline)) | |
235 | (goto-char (point-min)) | |
236 | ;; ignore any blank lines in the header | |
237 | (while (and (re-search-forward "\n\n\n*" delimline t) | |
238 | (< (point) delimline)) | |
239 | (replace-match "\n")) | |
240 | (let ((case-fold-search t)) | |
5feeeae2 RS |
241 | ;; We used to process Resent-... headers here, |
242 | ;; but it was not done properly, and the job | |
243 | ;; is done correctly in smtpmail-deduce-address-list. | |
24975917 RS |
244 | ;; Don't send out a blank subject line |
245 | (goto-char (point-min)) | |
5feeeae2 RS |
246 | (if (re-search-forward "^Subject:\\([ \t]*\n\\)+\\b" delimline t) |
247 | (replace-match "") | |
248 | ;; This one matches a Subject just before the header delimiter. | |
249 | (if (and (re-search-forward "^Subject:\\([ \t]*\n\\)+" delimline t) | |
250 | (= (match-end 0) delimline)) | |
251 | (replace-match ""))) | |
0e2701ca RS |
252 | ;; Put the "From:" field in unless for some odd reason |
253 | ;; they put one in themselves. | |
254 | (goto-char (point-min)) | |
255 | (if (not (re-search-forward "^From:" delimline t)) | |
256 | (let* ((login user-mail-address) | |
257 | (fullname (user-full-name))) | |
258 | (cond ((eq mail-from-style 'angles) | |
259 | (insert "From: " fullname) | |
260 | (let ((fullname-start (+ (point-min) 6)) | |
261 | (fullname-end (point-marker))) | |
262 | (goto-char fullname-start) | |
263 | ;; Look for a character that cannot appear unquoted | |
264 | ;; according to RFC 822. | |
265 | (if (re-search-forward "[^- !#-'*+/-9=?A-Z^-~]" | |
266 | fullname-end 1) | |
267 | (progn | |
268 | ;; Quote fullname, escaping specials. | |
269 | (goto-char fullname-start) | |
270 | (insert "\"") | |
271 | (while (re-search-forward "[\"\\]" | |
272 | fullname-end 1) | |
273 | (replace-match "\\\\\\&" t)) | |
274 | (insert "\"")))) | |
275 | (insert " <" login ">\n")) | |
276 | ((eq mail-from-style 'parens) | |
277 | (insert "From: " login " (") | |
278 | (let ((fullname-start (point))) | |
279 | (insert fullname) | |
280 | (let ((fullname-end (point-marker))) | |
281 | (goto-char fullname-start) | |
282 | ;; RFC 822 says \ and nonmatching parentheses | |
283 | ;; must be escaped in comments. | |
284 | ;; Escape every instance of ()\ ... | |
285 | (while (re-search-forward "[()\\]" fullname-end 1) | |
286 | (replace-match "\\\\\\&" t)) | |
287 | ;; ... then undo escaping of matching parentheses, | |
288 | ;; including matching nested parentheses. | |
289 | (goto-char fullname-start) | |
290 | (while (re-search-forward | |
291 | "\\(\\=\\|[^\\]\\(\\\\\\\\\\)*\\)\\\\(\\(\\([^\\]\\|\\\\\\\\\\)*\\)\\\\)" | |
292 | fullname-end 1) | |
293 | (replace-match "\\1(\\3)" t) | |
294 | (goto-char fullname-start)))) | |
295 | (insert ")\n")) | |
296 | ((null mail-from-style) | |
297 | (insert "From: " login "\n"))))) | |
21bf0d6c SM |
298 | ;; Insert a `Message-Id:' field if there isn't one yet. |
299 | (goto-char (point-min)) | |
300 | (unless (re-search-forward "^Message-Id:" delimline t) | |
301 | (insert "Message-Id: " (message-make-message-id) "\n")) | |
302 | ;; Insert a `Date:' field if there isn't one yet. | |
303 | (goto-char (point-min)) | |
304 | (unless (re-search-forward "^Date:" delimline t) | |
305 | (insert "Date: " (message-make-date) "\n")) | |
24975917 RS |
306 | ;; Insert an extra newline if we need it to work around |
307 | ;; Sun's bug that swallows newlines. | |
308 | (goto-char (1+ delimline)) | |
309 | (if (eval mail-mailer-swallows-blank-line) | |
310 | (newline)) | |
0e2701ca RS |
311 | ;; Find and handle any FCC fields. |
312 | (goto-char (point-min)) | |
313 | (if (re-search-forward "^FCC:" delimline t) | |
314 | (mail-do-fcc delimline)) | |
24975917 | 315 | (if mail-interactive |
21bf0d6c | 316 | (with-current-buffer errbuf |
24975917 RS |
317 | (erase-buffer)))) |
318 | ;; | |
319 | ;; | |
320 | ;; | |
321 | (setq smtpmail-address-buffer (generate-new-buffer "*smtp-mail*")) | |
322 | (setq smtpmail-recipient-address-list | |
5feeeae2 | 323 | (smtpmail-deduce-address-list tembuf (point-min) delimline)) |
24975917 | 324 | (kill-buffer smtpmail-address-buffer) |
308bc5d8 | 325 | |
24975917 | 326 | (smtpmail-do-bcc delimline) |
308bc5d8 RS |
327 | ; Send or queue |
328 | (if (not smtpmail-queue-mail) | |
329 | (if (not (null smtpmail-recipient-address-list)) | |
330 | (if (not (smtpmail-via-smtp | |
331 | smtpmail-recipient-address-list tembuf)) | |
332 | (error "Sending failed; SMTP protocol error")) | |
333 | (error "Sending failed; no recipients")) | |
334 | (let* ((file-data (concat | |
335 | smtpmail-queue-dir | |
3375a61c KH |
336 | (concat (time-stamp-yyyy-mm-dd) |
337 | "_" (time-stamp-hh:mm:ss)))) | |
e9166487 AI |
338 | (file-data (convert-standard-filename file-data)) |
339 | (file-elisp (concat file-data ".el")) | |
308bc5d8 RS |
340 | (buffer-data (create-file-buffer file-data)) |
341 | (buffer-elisp (create-file-buffer file-elisp)) | |
342 | (buffer-scratch "*queue-mail*")) | |
21bf0d6c | 343 | (with-current-buffer buffer-data |
308bc5d8 RS |
344 | (erase-buffer) |
345 | (insert-buffer tembuf) | |
346 | (write-file file-data) | |
347 | (set-buffer buffer-elisp) | |
348 | (erase-buffer) | |
349 | (insert (concat | |
350 | "(setq smtpmail-recipient-address-list '" | |
351 | (prin1-to-string smtpmail-recipient-address-list) | |
352 | ")\n")) | |
353 | (write-file file-elisp) | |
354 | (set-buffer (generate-new-buffer buffer-scratch)) | |
355 | (insert (concat file-data "\n")) | |
356 | (append-to-file (point-min) | |
357 | (point-max) | |
358 | smtpmail-queue-index) | |
359 | ) | |
360 | (kill-buffer buffer-scratch) | |
361 | (kill-buffer buffer-data) | |
362 | (kill-buffer buffer-elisp)))) | |
24975917 RS |
363 | (kill-buffer tembuf) |
364 | (if (bufferp errbuf) | |
365 | (kill-buffer errbuf))))) | |
366 | ||
308bc5d8 RS |
367 | (defun smtpmail-send-queued-mail () |
368 | "Send mail that was queued as a result of setting `smtpmail-queue-mail'." | |
369 | (interactive) | |
370 | ;;; Get index, get first mail, send it, get second mail, etc... | |
371 | (let ((buffer-index (find-file-noselect smtpmail-queue-index)) | |
372 | (file-msg "") | |
373 | (tembuf nil)) | |
21bf0d6c | 374 | (with-current-buffer buffer-index |
308bc5d8 RS |
375 | (beginning-of-buffer) |
376 | (while (not (eobp)) | |
21bf0d6c | 377 | (setq file-msg (buffer-substring (point) (line-end-position))) |
308bc5d8 | 378 | (load file-msg) |
19a0baf7 EZ |
379 | ;; Insert the message literally: it is already encoded as per |
380 | ;; the MIME headers, and code conversions might guess the | |
381 | ;; encoding wrongly. | |
382 | (setq tembuf (find-file-noselect file-msg nil t)) | |
308bc5d8 RS |
383 | (if (not (null smtpmail-recipient-address-list)) |
384 | (if (not (smtpmail-via-smtp smtpmail-recipient-address-list | |
385 | tembuf)) | |
386 | (error "Sending failed; SMTP protocol error")) | |
387 | (error "Sending failed; no recipients")) | |
388 | (delete-file file-msg) | |
389 | (delete-file (concat file-msg ".el")) | |
390 | (kill-buffer tembuf) | |
391 | (kill-line 1)) | |
392 | (set-buffer buffer-index) | |
393 | (save-buffer smtpmail-queue-index) | |
394 | (kill-buffer buffer-index) | |
395 | ))) | |
24975917 RS |
396 | |
397 | ;(defun smtpmail-via-smtp (host,port,sender,destination,smtpmail-text-buffer) | |
398 | ||
399 | (defun smtpmail-fqdn () | |
400 | (if smtpmail-local-domain | |
401 | (concat (system-name) "." smtpmail-local-domain) | |
402 | (system-name))) | |
403 | ||
9056f1c9 RS |
404 | (defsubst smtpmail-cred-server (cred) |
405 | (nth 0 cred)) | |
406 | ||
407 | (defsubst smtpmail-cred-port (cred) | |
408 | (nth 1 cred)) | |
409 | ||
410 | (defsubst smtpmail-cred-key (cred) | |
411 | (nth 2 cred)) | |
412 | ||
413 | (defsubst smtpmail-cred-user (cred) | |
414 | (nth 2 cred)) | |
415 | ||
416 | (defsubst smtpmail-cred-cert (cred) | |
417 | (nth 3 cred)) | |
418 | ||
419 | (defsubst smtpmail-cred-passwd (cred) | |
420 | (nth 3 cred)) | |
421 | ||
422 | (defun smtpmail-find-credentials (cred server port) | |
423 | (catch 'done | |
424 | (let ((l cred) el) | |
425 | (while (setq el (pop l)) | |
426 | (when (and (equal server (smtpmail-cred-server el)) | |
427 | (equal port (smtpmail-cred-port el))) | |
428 | (throw 'done el)))))) | |
429 | ||
2b5c7e03 GM |
430 | (defun smtpmail-maybe-append-domain (recipient) |
431 | (if (or (not smtpmail-sendto-domain) | |
432 | (string-match "@" recipient)) | |
433 | recipient | |
434 | (concat recipient "@" smtpmail-sendto-domain))) | |
435 | ||
9056f1c9 RS |
436 | (defun smtpmail-intersection (list1 list2) |
437 | (let ((result nil)) | |
438 | (dolist (el2 list2) | |
439 | (when (memq el2 list1) | |
440 | (push el2 result))) | |
441 | (nreverse result))) | |
442 | ||
443 | (defun smtpmail-open-stream (process-buffer host port) | |
444 | (let ((cred (smtpmail-find-credentials | |
445 | smtpmail-starttls-credentials host port))) | |
446 | (if (null (and cred (condition-case () | |
447 | (call-process "starttls") | |
448 | (error nil)))) | |
449 | ;; The normal case. | |
450 | (open-network-stream "SMTP" process-buffer host port) | |
451 | (let* ((cred-key (smtpmail-cred-key cred)) | |
452 | (cred-cert (smtpmail-cred-cert cred)) | |
453 | (starttls-extra-args | |
454 | (when (and (stringp cred-key) (stringp cred-cert) | |
455 | (file-regular-p | |
456 | (setq cred-key (expand-file-name cred-key))) | |
457 | (file-regular-p | |
458 | (setq cred-cert (expand-file-name cred-cert)))) | |
459 | (list "--key-file" cred-key "--cert-file" cred-cert)))) | |
460 | (starttls-open-stream "SMTP" process-buffer host port))))) | |
461 | ||
462 | (defun smtpmail-try-auth-methods (process supported-extensions host port) | |
463 | (let* ((mechs (cdr-safe (assoc 'auth supported-extensions))) | |
464 | (mech (car (smtpmail-intersection smtpmail-auth-supported mechs))) | |
465 | (cred (smtpmail-find-credentials smtpmail-auth-credentials host port)) | |
466 | (passwd (when cred | |
467 | (or (smtpmail-cred-passwd cred) | |
468 | (read-passwd | |
469 | (format "SMTP password for %s:%s: " | |
470 | (smtpmail-cred-server cred) | |
471 | (smtpmail-cred-port cred)))))) | |
472 | ret) | |
473 | (when cred | |
474 | (cond | |
475 | ((eq mech 'cram-md5) | |
476 | (smtpmail-send-command process (format "AUTH %s" mech)) | |
477 | (if (or (null (car (setq ret (smtpmail-read-response process)))) | |
478 | (not (integerp (car ret))) | |
479 | (>= (car ret) 400)) | |
480 | (throw 'done nil)) | |
481 | (when (eq (car ret) 334) | |
482 | (let* ((challenge (substring (cadr ret) 4)) | |
483 | (decoded (base64-decode-string challenge)) | |
484 | (hash (rfc2104-hash 'md5 64 16 passwd decoded)) | |
485 | (response (concat (smtpmail-cred-user cred) " " hash)) | |
486 | (encoded (base64-encode-string response))) | |
487 | (smtpmail-send-command process (format "%s" encoded)) | |
488 | (if (or (null (car (setq ret (smtpmail-read-response process)))) | |
489 | (not (integerp (car ret))) | |
490 | (>= (car ret) 400)) | |
491 | (throw 'done nil))))) | |
492 | ((eq mech 'login) | |
493 | (smtpmail-send-command process "AUTH LOGIN") | |
494 | (if (or (null (car (setq ret (smtpmail-read-response process)))) | |
495 | (not (integerp (car ret))) | |
496 | (>= (car ret) 400)) | |
497 | (throw 'done nil)) | |
498 | (smtpmail-send-command | |
499 | process (base64-encode-string (smtpmail-cred-user cred))) | |
500 | (if (or (null (car (setq ret (smtpmail-read-response process)))) | |
501 | (not (integerp (car ret))) | |
502 | (>= (car ret) 400)) | |
503 | (throw 'done nil)) | |
504 | (smtpmail-send-command process (base64-encode-string passwd)) | |
505 | (if (or (null (car (setq ret (smtpmail-read-response process)))) | |
506 | (not (integerp (car ret))) | |
507 | (>= (car ret) 400)) | |
508 | (throw 'done nil))) | |
509 | (t | |
510 | (error "Mechanism %s not implemented" mech))) | |
511 | ;; Remember the password. | |
512 | (unless (smtpmail-cred-passwd cred) | |
513 | (setcar (cdr (cdr (cdr cred))) passwd))))) | |
514 | ||
24975917 RS |
515 | (defun smtpmail-via-smtp (recipient smtpmail-text-buffer) |
516 | (let ((process nil) | |
f38d3514 KH |
517 | (host (or smtpmail-smtp-server |
518 | (error "`smtpmail-smtp-server' not defined"))) | |
8805249b | 519 | (port smtpmail-smtp-service) |
24975917 | 520 | response-code |
8805249b | 521 | greeting |
c50d5ce0 RS |
522 | process-buffer |
523 | (supported-extensions '())) | |
24975917 RS |
524 | (unwind-protect |
525 | (catch 'done | |
526 | ;; get or create the trace buffer | |
527 | (setq process-buffer | |
528 | (get-buffer-create (format "*trace of SMTP session to %s*" host))) | |
529 | ||
530 | ;; clear the trace buffer of old output | |
21bf0d6c | 531 | (with-current-buffer process-buffer |
24975917 RS |
532 | (erase-buffer)) |
533 | ||
534 | ;; open the connection to the server | |
9056f1c9 | 535 | (setq process (smtpmail-open-stream process-buffer host port)) |
24975917 RS |
536 | (and (null process) (throw 'done nil)) |
537 | ||
538 | ;; set the send-filter | |
539 | (set-process-filter process 'smtpmail-process-filter) | |
540 | ||
21bf0d6c | 541 | (with-current-buffer process-buffer |
4b876894 | 542 | (set-buffer-process-coding-system 'raw-text-unix 'raw-text-unix) |
24975917 RS |
543 | (make-local-variable 'smtpmail-read-point) |
544 | (setq smtpmail-read-point (point-min)) | |
545 | ||
546 | ||
547 | (if (or (null (car (setq greeting (smtpmail-read-response process)))) | |
548 | (not (integerp (car greeting))) | |
549 | (>= (car greeting) 400)) | |
550 | (throw 'done nil) | |
551 | ) | |
552 | ||
9056f1c9 RS |
553 | (let ((do-ehlo t) |
554 | (do-starttls t)) | |
555 | (while do-ehlo | |
c50d5ce0 RS |
556 | ;; EHLO |
557 | (smtpmail-send-command process (format "EHLO %s" (smtpmail-fqdn))) | |
24975917 | 558 | |
9056f1c9 RS |
559 | (if (or (null (car (setq response-code |
560 | (smtpmail-read-response process)))) | |
24975917 RS |
561 | (not (integerp (car response-code))) |
562 | (>= (car response-code) 400)) | |
c50d5ce0 RS |
563 | (progn |
564 | ;; HELO | |
9056f1c9 RS |
565 | (smtpmail-send-command |
566 | process (format "HELO %s" (smtpmail-fqdn))) | |
c50d5ce0 | 567 | |
9056f1c9 RS |
568 | (if (or (null (car (setq response-code |
569 | (smtpmail-read-response process)))) | |
c50d5ce0 RS |
570 | (not (integerp (car response-code))) |
571 | (>= (car response-code) 400)) | |
572 | (throw 'done nil))) | |
9056f1c9 RS |
573 | (dolist (line (cdr (cdr response-code))) |
574 | (let ((name (mapcar (lambda (s) (intern (downcase s))) | |
575 | (split-string (substring line 4) "[ ]")))) | |
576 | (and (eq (length name) 1) | |
577 | (setq name (car name))) | |
c50d5ce0 | 578 | (and name |
9056f1c9 RS |
579 | (cond ((memq (if (consp name) (car name) name) |
580 | '(verb xvrb 8bitmime onex xone | |
c50d5ce0 | 581 | expn size dsn etrn |
9056f1c9 RS |
582 | enhancedstatuscodes |
583 | help xusr | |
584 | auth=login auth starttls)) | |
c50d5ce0 RS |
585 | (setq supported-extensions |
586 | (cons name supported-extensions))) | |
1b62b062 | 587 | (smtpmail-warn-about-unknown-extensions |
9056f1c9 RS |
588 | (message "Unknown extension %s" name))))))) |
589 | ||
590 | (if (and do-starttls | |
591 | (smtpmail-find-credentials smtpmail-starttls-credentials host port) | |
592 | (member 'starttls supported-extensions) | |
593 | (process-id process)) | |
594 | (progn | |
595 | (smtpmail-send-command process (format "STARTTLS")) | |
596 | (if (or (null (car (setq response-code (smtpmail-read-response process)))) | |
597 | (not (integerp (car response-code))) | |
598 | (>= (car response-code) 400)) | |
599 | (throw 'done nil)) | |
600 | (starttls-negotiate process) | |
601 | (setq do-starttls nil)) | |
602 | (setq do-ehlo nil)))) | |
603 | ||
604 | (smtpmail-try-auth-methods process supported-extensions host port) | |
c50d5ce0 RS |
605 | |
606 | (if (or (member 'onex supported-extensions) | |
607 | (member 'xone supported-extensions)) | |
608 | (progn | |
609 | (smtpmail-send-command process (format "ONEX")) | |
610 | (if (or (null (car (setq response-code (smtpmail-read-response process)))) | |
611 | (not (integerp (car response-code))) | |
612 | (>= (car response-code) 400)) | |
613 | (throw 'done nil)))) | |
614 | ||
9056f1c9 | 615 | (if (and smtpmail-debug-verb |
c50d5ce0 RS |
616 | (or (member 'verb supported-extensions) |
617 | (member 'xvrb supported-extensions))) | |
618 | (progn | |
619 | (smtpmail-send-command process (format "VERB")) | |
620 | (if (or (null (car (setq response-code (smtpmail-read-response process)))) | |
621 | (not (integerp (car response-code))) | |
622 | (>= (car response-code) 400)) | |
623 | (throw 'done nil)))) | |
624 | ||
625 | (if (member 'xusr supported-extensions) | |
626 | (progn | |
627 | (smtpmail-send-command process (format "XUSR")) | |
628 | (if (or (null (car (setq response-code (smtpmail-read-response process)))) | |
629 | (not (integerp (car response-code))) | |
630 | (>= (car response-code) 400)) | |
631 | (throw 'done nil)))) | |
24975917 RS |
632 | |
633 | ;; MAIL FROM: <sender> | |
c50d5ce0 | 634 | (let ((size-part |
9056f1c9 RS |
635 | (if (or (member 'size supported-extensions) |
636 | (assoc 'size supported-extensions)) | |
c50d5ce0 | 637 | (format " SIZE=%d" |
21bf0d6c | 638 | (with-current-buffer smtpmail-text-buffer |
c50d5ce0 RS |
639 | ;; size estimate: |
640 | (+ (- (point-max) (point-min)) | |
641 | ;; Add one byte for each change-of-line | |
642 | ;; because or CR-LF representation: | |
643 | (count-lines (point-min) (point-max)) | |
644 | ;; For some reason, an empty line is | |
645 | ;; added to the message. Maybe this | |
646 | ;; is a bug, but it can't hurt to add | |
647 | ;; those two bytes anyway: | |
648 | 2))) | |
649 | "")) | |
650 | (body-part | |
651 | (if (member '8bitmime supported-extensions) | |
652 | ;; FIXME: | |
653 | ;; Code should be added here that transforms | |
654 | ;; the contents of the message buffer into | |
655 | ;; something the receiving SMTP can handle. | |
656 | ;; For a receiver that supports 8BITMIME, this | |
657 | ;; may mean converting BINARY to BASE64, or | |
658 | ;; adding Content-Transfer-Encoding and the | |
659 | ;; other MIME headers. The code should also | |
660 | ;; return an indication of what encoding the | |
661 | ;; message buffer is now, i.e. ASCII or | |
662 | ;; 8BITMIME. | |
663 | (if nil | |
664 | " BODY=8BITMIME" | |
665 | "") | |
666 | ""))) | |
667 | ; (smtpmail-send-command process (format "MAIL FROM:%s@%s" (user-login-name) (smtpmail-fqdn))) | |
668 | (smtpmail-send-command process (format "MAIL FROM: <%s>%s%s" | |
d2f11dda SM |
669 | (or mail-envelope-from |
670 | user-mail-address) | |
c50d5ce0 RS |
671 | size-part |
672 | body-part)) | |
673 | ||
674 | (if (or (null (car (setq response-code (smtpmail-read-response process)))) | |
675 | (not (integerp (car response-code))) | |
676 | (>= (car response-code) 400)) | |
677 | (throw 'done nil) | |
678 | )) | |
24975917 RS |
679 | |
680 | ;; RCPT TO: <recipient> | |
8805249b RS |
681 | (let ((n 0)) |
682 | (while (not (null (nth n recipient))) | |
2b5c7e03 | 683 | (smtpmail-send-command process (format "RCPT TO: <%s>" (smtpmail-maybe-append-domain (nth n recipient)))) |
8805249b RS |
684 | (setq n (1+ n)) |
685 | ||
c50d5ce0 RS |
686 | (setq response-code (smtpmail-read-response process)) |
687 | (if (or (null (car response-code)) | |
8805249b RS |
688 | (not (integerp (car response-code))) |
689 | (>= (car response-code) 400)) | |
690 | (throw 'done nil) | |
691 | ) | |
692 | )) | |
24975917 RS |
693 | |
694 | ;; DATA | |
695 | (smtpmail-send-command process "DATA") | |
696 | ||
697 | (if (or (null (car (setq response-code (smtpmail-read-response process)))) | |
698 | (not (integerp (car response-code))) | |
699 | (>= (car response-code) 400)) | |
700 | (throw 'done nil) | |
701 | ) | |
702 | ||
703 | ;; Mail contents | |
704 | (smtpmail-send-data process smtpmail-text-buffer) | |
705 | ||
706 | ;;DATA end "." | |
707 | (smtpmail-send-command process ".") | |
708 | ||
709 | (if (or (null (car (setq response-code (smtpmail-read-response process)))) | |
710 | (not (integerp (car response-code))) | |
711 | (>= (car response-code) 400)) | |
712 | (throw 'done nil) | |
713 | ) | |
714 | ||
715 | ;;QUIT | |
716 | ; (smtpmail-send-command process "QUIT") | |
717 | ; (and (null (car (smtpmail-read-response process))) | |
718 | ; (throw 'done nil)) | |
719 | t )) | |
720 | (if process | |
21bf0d6c | 721 | (with-current-buffer (process-buffer process) |
24975917 RS |
722 | (smtpmail-send-command process "QUIT") |
723 | (smtpmail-read-response process) | |
724 | ||
725 | ; (if (or (null (car (setq response-code (smtpmail-read-response process)))) | |
726 | ; (not (integerp (car response-code))) | |
727 | ; (>= (car response-code) 400)) | |
728 | ; (throw 'done nil) | |
729 | ; ) | |
730 | (delete-process process)))))) | |
731 | ||
732 | ||
24975917 | 733 | (defun smtpmail-process-filter (process output) |
21bf0d6c | 734 | (with-current-buffer (process-buffer process) |
24975917 RS |
735 | (goto-char (point-max)) |
736 | (insert output))) | |
737 | ||
24975917 RS |
738 | (defun smtpmail-read-response (process) |
739 | (let ((case-fold-search nil) | |
c50d5ce0 | 740 | (response-strings nil) |
24975917 | 741 | (response-continue t) |
c50d5ce0 | 742 | (return-value '(nil ())) |
24975917 RS |
743 | match-end) |
744 | ||
24975917 | 745 | (while response-continue |
c8d16dbd | 746 | (goto-char smtpmail-read-point) |
24975917 RS |
747 | (while (not (search-forward "\r\n" nil t)) |
748 | (accept-process-output process) | |
749 | (goto-char smtpmail-read-point)) | |
750 | ||
751 | (setq match-end (point)) | |
c50d5ce0 RS |
752 | (setq response-strings |
753 | (cons (buffer-substring smtpmail-read-point (- match-end 2)) | |
754 | response-strings)) | |
24975917 RS |
755 | |
756 | (goto-char smtpmail-read-point) | |
757 | (if (looking-at "[0-9]+ ") | |
c50d5ce0 RS |
758 | (let ((begin (match-beginning 0)) |
759 | (end (match-end 0))) | |
760 | (if smtpmail-debug-info | |
761 | (message "%s" (car response-strings))) | |
24975917 | 762 | |
c50d5ce0 | 763 | (setq smtpmail-read-point match-end) |
24975917 | 764 | |
c50d5ce0 RS |
765 | ;; ignore lines that start with "0" |
766 | (if (looking-at "0[0-9]+ ") | |
767 | nil | |
768 | (setq response-continue nil) | |
769 | (setq return-value | |
770 | (cons (string-to-int | |
771 | (buffer-substring begin end)) | |
772 | (nreverse response-strings))))) | |
24975917 RS |
773 | |
774 | (if (looking-at "[0-9]+-") | |
c50d5ce0 RS |
775 | (progn (if smtpmail-debug-info |
776 | (message "%s" (car response-strings))) | |
777 | (setq smtpmail-read-point match-end) | |
24975917 RS |
778 | (setq response-continue t)) |
779 | (progn | |
780 | (setq smtpmail-read-point match-end) | |
781 | (setq response-continue nil) | |
782 | (setq return-value | |
c50d5ce0 | 783 | (cons nil (nreverse response-strings))) |
24975917 RS |
784 | ) |
785 | ))) | |
786 | (setq smtpmail-read-point match-end) | |
787 | return-value)) | |
788 | ||
789 | ||
24975917 RS |
790 | (defun smtpmail-send-command (process command) |
791 | (goto-char (point-max)) | |
792 | (if (= (aref command 0) ?P) | |
793 | (insert "PASS <omitted>\r\n") | |
794 | (insert command "\r\n")) | |
795 | (setq smtpmail-read-point (point)) | |
796 | (process-send-string process command) | |
797 | (process-send-string process "\r\n")) | |
798 | ||
24975917 RS |
799 | (defun smtpmail-send-data-1 (process data) |
800 | (goto-char (point-max)) | |
801 | ||
83af570e KH |
802 | (if (and (multibyte-string-p data) |
803 | smtpmail-code-conv-from) | |
804 | (setq data (string-as-multibyte | |
805 | (encode-coding-string data smtpmail-code-conv-from)))) | |
24975917 RS |
806 | |
807 | (if smtpmail-debug-info | |
808 | (insert data "\r\n")) | |
809 | ||
810 | (setq smtpmail-read-point (point)) | |
57810560 KH |
811 | ;; Escape "." at start of a line |
812 | (if (eq (string-to-char data) ?.) | |
24975917 | 813 | (process-send-string process ".")) |
57810560 | 814 | (process-send-string process data) |
24975917 RS |
815 | (process-send-string process "\r\n") |
816 | ) | |
817 | ||
818 | (defun smtpmail-send-data (process buffer) | |
819 | (let | |
820 | ((data-continue t) | |
821 | (sending-data nil) | |
822 | this-line | |
823 | this-line-end) | |
824 | ||
21bf0d6c | 825 | (with-current-buffer buffer |
24975917 RS |
826 | (goto-char (point-min))) |
827 | ||
828 | (while data-continue | |
21bf0d6c | 829 | (with-current-buffer buffer |
24975917 RS |
830 | (beginning-of-line) |
831 | (setq this-line (point)) | |
832 | (end-of-line) | |
833 | (setq this-line-end (point)) | |
834 | (setq sending-data nil) | |
835 | (setq sending-data (buffer-substring this-line this-line-end)) | |
836 | (if (/= (forward-line 1) 0) | |
837 | (setq data-continue nil))) | |
838 | ||
839 | (smtpmail-send-data-1 process sending-data) | |
840 | ) | |
841 | ) | |
842 | ) | |
843 | ||
844 | ||
845 | (defun smtpmail-deduce-address-list (smtpmail-text-buffer header-start header-end) | |
846 | "Get address list suitable for smtp RCPT TO: <address>." | |
1188dd37 | 847 | (unwind-protect |
21bf0d6c SM |
848 | (with-current-buffer smtpmail-address-buffer |
849 | (erase-buffer) | |
1188dd37 AI |
850 | (let |
851 | ((case-fold-search t) | |
852 | (simple-address-list "") | |
853 | this-line | |
854 | this-line-end | |
855 | addr-regexp) | |
24975917 RS |
856 | (insert-buffer-substring smtpmail-text-buffer header-start header-end) |
857 | (goto-char (point-min)) | |
13f1d088 KH |
858 | ;; RESENT-* fields should stop processing of regular fields. |
859 | (save-excursion | |
21bf0d6c SM |
860 | (setq addr-regexp |
861 | (if (re-search-forward "^Resent-\\(to\\|cc\\|bcc\\):" | |
862 | header-end t) | |
863 | "^Resent-\\(to\\|cc\\|bcc\\):" | |
864 | "^\\(To:\\|Cc:\\|Bcc:\\)"))) | |
13f1d088 KH |
865 | |
866 | (while (re-search-forward addr-regexp header-end t) | |
24975917 RS |
867 | (replace-match "") |
868 | (setq this-line (match-beginning 0)) | |
869 | (forward-line 1) | |
870 | ;; get any continuation lines | |
871 | (while (and (looking-at "^[ \t]+") (< (point) header-end)) | |
872 | (forward-line 1)) | |
873 | (setq this-line-end (point-marker)) | |
874 | (setq simple-address-list | |
875 | (concat simple-address-list " " | |
876 | (mail-strip-quoted-names (buffer-substring this-line this-line-end)))) | |
877 | ) | |
878 | (erase-buffer) | |
92dfd10c | 879 | (insert " " simple-address-list "\n") |
24975917 RS |
880 | (subst-char-in-region (point-min) (point-max) 10 ? t);; newline --> blank |
881 | (subst-char-in-region (point-min) (point-max) ?, ? t);; comma --> blank | |
882 | (subst-char-in-region (point-min) (point-max) 9 ? t);; tab --> blank | |
883 | ||
884 | (goto-char (point-min)) | |
885 | ;; tidyness in case hook is not robust when it looks at this | |
886 | (while (re-search-forward "[ \t]+" header-end t) (replace-match " ")) | |
887 | ||
888 | (goto-char (point-min)) | |
8805249b | 889 | (let (recipient-address-list) |
e2f7c221 | 890 | (while (re-search-forward " \\([^ ]+\\) " (point-max) t) |
8805249b | 891 | (backward-char 1) |
e2f7c221 RS |
892 | (setq recipient-address-list (cons (buffer-substring (match-beginning 1) (match-end 1)) |
893 | recipient-address-list)) | |
8805249b RS |
894 | ) |
895 | (setq smtpmail-recipient-address-list recipient-address-list)) | |
24975917 RS |
896 | |
897 | ) | |
1188dd37 | 898 | ) |
24975917 RS |
899 | ) |
900 | ) | |
901 | ||
902 | ||
903 | (defun smtpmail-do-bcc (header-end) | |
5feeeae2 | 904 | "Delete [Resent-]BCC: and their continuation lines from the header area. |
24975917 RS |
905 | There may be multiple BCC: lines, and each may have arbitrarily |
906 | many continuation lines." | |
907 | (let ((case-fold-search t)) | |
067427f5 KH |
908 | (save-excursion |
909 | (goto-char (point-min)) | |
910 | ;; iterate over all BCC: lines | |
911 | (while (re-search-forward "^\\(RESENT-\\)?BCC:" header-end t) | |
912 | (delete-region (match-beginning 0) | |
913 | (progn (forward-line 1) (point))) | |
914 | ;; get rid of any continuation lines | |
915 | (while (and (looking-at "^[ \t].*\n") (< (point) header-end)) | |
916 | (replace-match "")))))) | |
24975917 RS |
917 | |
918 | ||
919 | (provide 'smtpmail) | |
920 | ||
092af6d8 | 921 | ;;; smtpmail.el ends here |