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eec82323 LMI |
1 | ;;; pop3.el --- Post Office Protocol (RFC 1460) interface |
2 | ||
e84b4b86 | 3 | ;; Copyright (C) 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, |
e3fe4da0 | 4 | ;; 2004, 2005, 2006, 2007, 2008 Free Software Foundation, Inc. |
eec82323 LMI |
5 | |
6 | ;; Author: Richard L. Pieri <ratinox@peorth.gweep.net> | |
dd5da9b8 DL |
7 | ;; Maintainer: FSF |
8 | ;; Keywords: mail | |
eec82323 LMI |
9 | |
10 | ;; This file is part of GNU Emacs. | |
11 | ||
5e809f55 | 12 | ;; GNU Emacs is free software: you can redistribute it and/or modify |
eec82323 | 13 | ;; it under the terms of the GNU General Public License as published by |
5e809f55 GM |
14 | ;; the Free Software Foundation, either version 3 of the License, or |
15 | ;; (at your option) any later version. | |
eec82323 LMI |
16 | |
17 | ;; GNU Emacs is distributed in the hope that it will be useful, | |
18 | ;; but WITHOUT ANY WARRANTY; without even the implied warranty of | |
19 | ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
20 | ;; GNU General Public License for more details. | |
21 | ||
22 | ;; You should have received a copy of the GNU General Public License | |
5e809f55 | 23 | ;; along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>. |
eec82323 LMI |
24 | |
25 | ;;; Commentary: | |
26 | ||
27 | ;; Most of the standard Post Office Protocol version 3 (RFC 1460) commands | |
28 | ;; are implemented. The LIST command has not been implemented due to lack | |
29 | ;; of actual usefulness. | |
30 | ;; The optional POP3 command TOP has not been implemented. | |
31 | ||
32 | ;; This program was inspired by Kyle E. Jones's vm-pop program. | |
33 | ||
34 | ;;; Code: | |
35 | ||
36 | (require 'mail-utils) | |
9efa445f | 37 | (defvar parse-time-months) |
eec82323 | 38 | |
e62e7654 | 39 | (defgroup pop3 nil |
62a3378e | 40 | "Post Office Protocol." |
e62e7654 MB |
41 | :group 'mail |
42 | :group 'mail-source) | |
43 | ||
44 | (defcustom pop3-maildrop (or (user-login-name) | |
45 | (getenv "LOGNAME") | |
46 | (getenv "USER")) | |
47 | "*POP3 maildrop." | |
bf247b6e | 48 | :version "22.1" ;; Oort Gnus |
e62e7654 MB |
49 | :type 'string |
50 | :group 'pop3) | |
51 | ||
52 | (defcustom pop3-mailhost (or (getenv "MAILHOST") ;; nil -> mismatch | |
53 | "pop3") | |
54 | "*POP3 mailhost." | |
bf247b6e | 55 | :version "22.1" ;; Oort Gnus |
e62e7654 MB |
56 | :type 'string |
57 | :group 'pop3) | |
58 | ||
59 | (defcustom pop3-port 110 | |
60 | "*POP3 port." | |
bf247b6e | 61 | :version "22.1" ;; Oort Gnus |
e62e7654 MB |
62 | :type 'number |
63 | :group 'pop3) | |
64 | ||
65 | (defcustom pop3-password-required t | |
66 | "*Non-nil if a password is required when connecting to POP server." | |
bf247b6e | 67 | :version "22.1" ;; Oort Gnus |
e62e7654 MB |
68 | :type 'boolean |
69 | :group 'pop3) | |
70 | ||
71 | ;; Should this be customizable? | |
eec82323 LMI |
72 | (defvar pop3-password nil |
73 | "*Password to use when connecting to POP server.") | |
74 | ||
e62e7654 | 75 | (defcustom pop3-authentication-scheme 'pass |
eec82323 | 76 | "*POP3 authentication scheme. |
996aa8c1 MB |
77 | Defaults to `pass', for the standard USER/PASS authentication. The other |
78 | valid value is 'apop'." | |
79 | :type '(choice (const :tag "Normal user/password" pass) | |
e62e7654 | 80 | (const :tag "APOP" apop)) |
996aa8c1 | 81 | :version "22.1" ;; Oort Gnus |
e62e7654 MB |
82 | :group 'pop3) |
83 | ||
84 | (defcustom pop3-leave-mail-on-server nil | |
8903a9c8 MB |
85 | "*Non-nil if the mail is to be left on the POP server after fetching. |
86 | ||
996aa8c1 MB |
87 | If `pop3-leave-mail-on-server' is non-nil the mail is to be left |
88 | on the POP server after fetching. Note that POP servers maintain | |
89 | no state information between sessions, so what the client | |
90 | believes is there and what is actually there may not match up. | |
91 | If they do not, then you may get duplicate mails or the whole | |
92 | thing can fall apart and leave you with a corrupt mailbox." | |
b110774a MB |
93 | ;; We can't use the UILD support from XEmacs mail-lib or cvs.m17n.org: |
94 | ;; http://thread.gmane.org/v9lld8fml4.fsf@marauder.physik.uni-ulm.de | |
95 | ;; http://thread.gmane.org/b9yy8hzy9ej.fsf@jpl.org | |
96 | ;; Any volunteer to re-implement this? | |
bf247b6e | 97 | :version "22.1" ;; Oort Gnus |
e62e7654 MB |
98 | :type 'boolean |
99 | :group 'pop3) | |
3e7b210c | 100 | |
eec82323 LMI |
101 | (defvar pop3-timestamp nil |
102 | "Timestamp returned when initially connected to the POP server. | |
103 | Used for APOP authentication.") | |
104 | ||
105 | (defvar pop3-read-point nil) | |
106 | (defvar pop3-debug nil) | |
107 | ||
8903a9c8 MB |
108 | ;; Borrowed from nnheader-accept-process-output in nnheader.el. |
109 | (defvar pop3-read-timeout | |
110 | (if (string-match "windows-nt\\|os/2\\|emx\\|cygwin" | |
111 | (symbol-name system-type)) | |
112 | ;; http://thread.gmane.org/v9655t3pjo.fsf@marauder.physik.uni-ulm.de | |
113 | ;; | |
114 | ;; IIRC, values lower than 1.0 didn't/don't work on Windows/DOS. | |
115 | ;; | |
116 | ;; There should probably be a runtime test to determine the timing | |
117 | ;; resolution, or a primitive to report it. I don't know off-hand | |
118 | ;; what's possible. Perhaps better, maybe the Windows/DOS primitive | |
119 | ;; could round up non-zero timeouts to a minimum of 1.0? | |
120 | 1.0 | |
121 | 0.1) | |
122 | "How long pop3 should wait between checking for the end of output. | |
123 | Shorter values mean quicker response, but are more CPU intensive.") | |
124 | ||
125 | ;; Borrowed from nnheader-accept-process-output in nnheader.el. | |
126 | (defun pop3-accept-process-output (process) | |
127 | (accept-process-output | |
128 | process | |
129 | (truncate pop3-read-timeout) | |
130 | (truncate (* (- pop3-read-timeout | |
131 | (truncate pop3-read-timeout)) | |
132 | 1000)))) | |
133 | ||
eec82323 LMI |
134 | (defun pop3-movemail (&optional crashbox) |
135 | "Transfer contents of a maildrop to the specified CRASHBOX." | |
136 | (or crashbox (setq crashbox (expand-file-name "~/.crashbox"))) | |
137 | (let* ((process (pop3-open-server pop3-mailhost pop3-port)) | |
138 | (crashbuf (get-buffer-create " *pop3-retr*")) | |
139 | (n 1) | |
6748645f | 140 | message-count |
e62e7654 | 141 | (pop3-password pop3-password)) |
eec82323 LMI |
142 | ;; for debugging only |
143 | (if pop3-debug (switch-to-buffer (process-buffer process))) | |
6748645f LMI |
144 | ;; query for password |
145 | (if (and pop3-password-required (not pop3-password)) | |
146 | (setq pop3-password | |
23f87bed | 147 | (read-passwd (format "Password for %s: " pop3-maildrop)))) |
eec82323 LMI |
148 | (cond ((equal 'apop pop3-authentication-scheme) |
149 | (pop3-apop process pop3-maildrop)) | |
150 | ((equal 'pass pop3-authentication-scheme) | |
151 | (pop3-user process pop3-maildrop) | |
152 | (pop3-pass process)) | |
dd5da9b8 | 153 | (t (error "Invalid POP3 authentication scheme"))) |
eec82323 | 154 | (setq message-count (car (pop3-stat process))) |
dd5da9b8 DL |
155 | (unwind-protect |
156 | (while (<= n message-count) | |
23f87bed MB |
157 | (message "Retrieving message %d of %d from %s..." |
158 | n message-count pop3-mailhost) | |
dd5da9b8 DL |
159 | (pop3-retr process n crashbuf) |
160 | (save-excursion | |
161 | (set-buffer crashbuf) | |
4c4b227a | 162 | (let ((coding-system-for-write 'binary)) |
a9c810bf | 163 | (write-region (point-min) (point-max) crashbox t 'nomesg)) |
dd5da9b8 DL |
164 | (set-buffer (process-buffer process)) |
165 | (while (> (buffer-size) 5000) | |
166 | (goto-char (point-min)) | |
167 | (forward-line 50) | |
168 | (delete-region (point-min) (point)))) | |
3e7b210c SS |
169 | (unless pop3-leave-mail-on-server |
170 | (pop3-dele process n)) | |
dd5da9b8 | 171 | (setq n (+ 1 n)) |
996aa8c1 MB |
172 | (if pop3-debug (sit-for 1) (sit-for 0.1))) ; why? |
173 | (when (and pop3-leave-mail-on-server | |
174 | (> n 1)) | |
175 | (message "pop3.el doesn't support UIDL. Setting `pop3-leave-mail-on-server' | |
176 | to %s might not give the result you'd expect." pop3-leave-mail-on-server) | |
177 | (sit-for 1)) | |
dd5da9b8 | 178 | (pop3-quit process)) |
996aa8c1 | 179 | (kill-buffer crashbuf)) |
dd5da9b8 | 180 | t) |
eec82323 | 181 | |
619ac84f SZ |
182 | (defun pop3-get-message-count () |
183 | "Return the number of messages in the maildrop." | |
184 | (let* ((process (pop3-open-server pop3-mailhost pop3-port)) | |
185 | message-count | |
e62e7654 | 186 | (pop3-password pop3-password)) |
619ac84f SZ |
187 | ;; for debugging only |
188 | (if pop3-debug (switch-to-buffer (process-buffer process))) | |
189 | ;; query for password | |
190 | (if (and pop3-password-required (not pop3-password)) | |
191 | (setq pop3-password | |
23f87bed | 192 | (read-passwd (format "Password for %s: " pop3-maildrop)))) |
619ac84f SZ |
193 | (cond ((equal 'apop pop3-authentication-scheme) |
194 | (pop3-apop process pop3-maildrop)) | |
195 | ((equal 'pass pop3-authentication-scheme) | |
196 | (pop3-user process pop3-maildrop) | |
197 | (pop3-pass process)) | |
55535639 | 198 | (t (error "Invalid POP3 authentication scheme"))) |
619ac84f SZ |
199 | (setq message-count (car (pop3-stat process))) |
200 | (pop3-quit process) | |
201 | message-count)) | |
202 | ||
01c52d31 MB |
203 | (autoload 'open-tls-stream "tls") |
204 | (autoload 'starttls-open-stream "starttls") | |
205 | (autoload 'starttls-negotiate "starttls") ; avoid warning | |
206 | ||
207 | (defcustom pop3-stream-type nil | |
208 | "*Transport security type for POP3 connexions. | |
209 | This may be either nil (plain connexion), `ssl' (use an | |
210 | SSL/TSL-secured stream) or `starttls' (use the starttls mechanism | |
211 | to turn on TLS security after opening the stream). However, if | |
212 | this is nil, `ssl' is assumed for connexions to port | |
213 | 995 (pop3s)." | |
330f707b | 214 | :version "23.1" ;; No Gnus |
01c52d31 MB |
215 | :group 'pop3 |
216 | :type '(choice (const :tag "Plain" nil) | |
217 | (const :tag "SSL/TLS" ssl) | |
218 | (const starttls))) | |
219 | ||
eec82323 | 220 | (defun pop3-open-server (mailhost port) |
dd5da9b8 | 221 | "Open TCP connection to MAILHOST on PORT. |
eec82323 | 222 | Returns the process associated with the connection." |
4cac7481 | 223 | (let ((coding-system-for-read 'binary) |
6748645f | 224 | (coding-system-for-write 'binary) |
4cac7481 | 225 | process) |
eec82323 | 226 | (save-excursion |
4cac7481 DL |
227 | (set-buffer (get-buffer-create (concat " trace of POP session to " |
228 | mailhost))) | |
6748645f LMI |
229 | (erase-buffer) |
230 | (setq pop3-read-point (point-min)) | |
01c52d31 MB |
231 | (setq process |
232 | (cond | |
233 | ((or (eq pop3-stream-type 'ssl) | |
234 | (and (not pop3-stream-type) (member port '(995 "pop3s")))) | |
235 | ;; gnutls-cli, openssl don't accept service names | |
236 | (if (or (equal port "pop3s") | |
237 | (null port)) | |
238 | (setq port 995)) | |
239 | (let ((process (open-tls-stream "POP" (current-buffer) | |
240 | mailhost port))) | |
241 | (when process | |
242 | ;; There's a load of info printed that needs deleting. | |
1428d46b MB |
243 | (let ((again 't)) |
244 | ;; repeat until | |
245 | ;; - either we received the +OK line | |
246 | ;; - or accept-process-output timed out without getting | |
247 | ;; anything | |
248 | (while (and again | |
249 | (setq again (memq (process-status process) | |
250 | '(open run)))) | |
251 | (setq again (pop3-accept-process-output process)) | |
252 | (goto-char (point-max)) | |
253 | (forward-line -1) | |
254 | (cond ((looking-at "\\+OK") | |
255 | (setq again nil) | |
256 | (delete-region (point-min) (point))) | |
257 | ((not again) | |
01c52d31 | 258 | (pop3-quit process) |
1428d46b | 259 | (error "POP SSL connexion failed"))))) |
01c52d31 MB |
260 | process))) |
261 | ((eq pop3-stream-type 'starttls) | |
262 | ;; gnutls-cli, openssl don't accept service names | |
263 | (if (equal port "pop3") | |
264 | (setq port 110)) | |
265 | (let ((process (starttls-open-stream "POP" (current-buffer) | |
266 | mailhost (or port 110)))) | |
267 | (pop3-send-command process "STLS") | |
268 | (let ((response (pop3-read-response process t))) | |
269 | (if (and response (string-match "+OK" response)) | |
270 | (starttls-negotiate process) | |
271 | (pop3-quit process) | |
272 | (error "POP server doesn't support starttls"))) | |
273 | process)) | |
274 | (t | |
275 | (open-network-stream "POP" (current-buffer) mailhost port)))) | |
4cac7481 DL |
276 | (let ((response (pop3-read-response process t))) |
277 | (setq pop3-timestamp | |
278 | (substring response (or (string-match "<" response) 0) | |
279 | (+ 1 (or (string-match ">" response) -1))))) | |
280 | process))) | |
eec82323 LMI |
281 | |
282 | ;; Support functions | |
283 | ||
284 | (defun pop3-process-filter (process output) | |
285 | (save-excursion | |
286 | (set-buffer (process-buffer process)) | |
287 | (goto-char (point-max)) | |
288 | (insert output))) | |
289 | ||
290 | (defun pop3-send-command (process command) | |
e62e7654 MB |
291 | (set-buffer (process-buffer process)) |
292 | (goto-char (point-max)) | |
293 | ;; (if (= (aref command 0) ?P) | |
294 | ;; (insert "PASS <omitted>\r\n") | |
295 | ;; (insert command "\r\n")) | |
296 | (setq pop3-read-point (point)) | |
297 | (goto-char (point-max)) | |
298 | (process-send-string process (concat command "\r\n"))) | |
eec82323 LMI |
299 | |
300 | (defun pop3-read-response (process &optional return) | |
301 | "Read the response from the server. | |
302 | Return the response string if optional second argument is non-nil." | |
303 | (let ((case-fold-search nil) | |
304 | match-end) | |
305 | (save-excursion | |
306 | (set-buffer (process-buffer process)) | |
307 | (goto-char pop3-read-point) | |
23f87bed MB |
308 | (while (and (memq (process-status process) '(open run)) |
309 | (not (search-forward "\r\n" nil t))) | |
8903a9c8 | 310 | (pop3-accept-process-output process) |
eec82323 LMI |
311 | (goto-char pop3-read-point)) |
312 | (setq match-end (point)) | |
313 | (goto-char pop3-read-point) | |
314 | (if (looking-at "-ERR") | |
26b4a51d | 315 | (error "%s" (buffer-substring (point) (- match-end 2))) |
eec82323 LMI |
316 | (if (not (looking-at "+OK")) |
317 | (progn (setq pop3-read-point match-end) nil) | |
318 | (setq pop3-read-point match-end) | |
319 | (if return | |
320 | (buffer-substring (point) match-end) | |
321 | t) | |
322 | ))))) | |
323 | ||
eec82323 LMI |
324 | (defun pop3-clean-region (start end) |
325 | (setq end (set-marker (make-marker) end)) | |
326 | (save-excursion | |
327 | (goto-char start) | |
328 | (while (and (< (point) end) (search-forward "\r\n" end t)) | |
329 | (replace-match "\n" t t)) | |
330 | (goto-char start) | |
331 | (while (and (< (point) end) (re-search-forward "^\\." end t)) | |
332 | (replace-match "" t t) | |
333 | (forward-char))) | |
334 | (set-marker end nil)) | |
335 | ||
daaeed87 DL |
336 | ;; Copied from message-make-date. |
337 | (defun pop3-make-date (&optional now) | |
338 | "Make a valid date header. | |
339 | If NOW, use that time instead." | |
340 | (require 'parse-time) | |
341 | (let* ((now (or now (current-time))) | |
342 | (zone (nth 8 (decode-time now))) | |
343 | (sign "+")) | |
344 | (when (< zone 0) | |
345 | (setq sign "-") | |
346 | (setq zone (- zone))) | |
347 | (concat | |
348 | (format-time-string "%d" now) | |
349 | ;; The month name of the %b spec is locale-specific. Pfff. | |
350 | (format " %s " | |
351 | (capitalize (car (rassoc (nth 4 (decode-time now)) | |
352 | parse-time-months)))) | |
353 | (format-time-string "%Y %H:%M:%S " now) | |
354 | ;; We do all of this because XEmacs doesn't have the %z spec. | |
355 | (format "%s%02d%02d" sign (/ zone 3600) (/ (% zone 3600) 60))))) | |
356 | ||
eec82323 LMI |
357 | (defun pop3-munge-message-separator (start end) |
358 | "Check to see if a message separator exists. If not, generate one." | |
359 | (save-excursion | |
360 | (save-restriction | |
361 | (narrow-to-region start end) | |
362 | (goto-char (point-min)) | |
363 | (if (not (or (looking-at "From .?") ; Unix mail | |
364 | (looking-at "\001\001\001\001\n") ; MMDF | |
365 | (looking-at "BABYL OPTIONS:") ; Babyl | |
366 | )) | |
ae496852 SZ |
367 | (let* ((from (mail-strip-quoted-names (mail-fetch-field "From"))) |
368 | (tdate (mail-fetch-field "Date")) | |
369 | (date (split-string (or (and tdate | |
370 | (not (string= "" tdate)) | |
371 | tdate) | |
372 | (pop3-make-date)) | |
373 | " ")) | |
374 | (From_)) | |
eec82323 LMI |
375 | ;; sample date formats I have seen |
376 | ;; Date: Tue, 9 Jul 1996 09:04:21 -0400 (EDT) | |
377 | ;; Date: 08 Jul 1996 23:22:24 -0400 | |
378 | ;; should be | |
379 | ;; Tue Jul 9 09:04:21 1996 | |
996aa8c1 MB |
380 | |
381 | ;; Fixme: This should use timezone on the date field contents. | |
eec82323 | 382 | (setq date |
ae496852 | 383 | (cond ((not date) |
23f87bed | 384 | "Tue Jan 1 00:00:0 1900") |
ae496852 | 385 | ((string-match "[A-Z]" (nth 0 date)) |
eec82323 LMI |
386 | (format "%s %s %s %s %s" |
387 | (nth 0 date) (nth 2 date) (nth 1 date) | |
388 | (nth 4 date) (nth 3 date))) | |
389 | (t | |
390 | ;; this really needs to be better but I don't feel | |
391 | ;; like writing a date to day converter. | |
392 | (format "Sun %s %s %s %s" | |
393 | (nth 1 date) (nth 0 date) | |
394 | (nth 3 date) (nth 2 date))) | |
395 | )) | |
396 | (setq From_ (format "\nFrom %s %s\n" from date)) | |
397 | (while (string-match "," From_) | |
398 | (setq From_ (concat (substring From_ 0 (match-beginning 0)) | |
399 | (substring From_ (match-end 0))))) | |
400 | (goto-char (point-min)) | |
dd5da9b8 | 401 | (insert From_) |
daaeed87 DL |
402 | (if (search-forward "\n\n" nil t) |
403 | nil | |
404 | (goto-char (point-max)) | |
405 | (insert "\n")) | |
dd5da9b8 DL |
406 | (narrow-to-region (point) (point-max)) |
407 | (let ((size (- (point-max) (point-min)))) | |
408 | (goto-char (point-min)) | |
409 | (widen) | |
410 | (forward-line -1) | |
411 | (insert (format "Content-Length: %s\n" size))) | |
412 | ))))) | |
eec82323 LMI |
413 | |
414 | ;; The Command Set | |
415 | ||
416 | ;; AUTHORIZATION STATE | |
417 | ||
418 | (defun pop3-user (process user) | |
419 | "Send USER information to POP3 server." | |
420 | (pop3-send-command process (format "USER %s" user)) | |
421 | (let ((response (pop3-read-response process t))) | |
422 | (if (not (and response (string-match "+OK" response))) | |
2c2b732f | 423 | (error "USER %s not valid" user)))) |
eec82323 LMI |
424 | |
425 | (defun pop3-pass (process) | |
426 | "Send authentication information to the server." | |
6748645f LMI |
427 | (pop3-send-command process (format "PASS %s" pop3-password)) |
428 | (let ((response (pop3-read-response process t))) | |
429 | (if (not (and response (string-match "+OK" response))) | |
430 | (pop3-quit process)))) | |
431 | ||
432 | (defun pop3-apop (process user) | |
433 | "Send alternate authentication information to the server." | |
eec82323 LMI |
434 | (let ((pass pop3-password)) |
435 | (if (and pop3-password-required (not pass)) | |
436 | (setq pass | |
23f87bed | 437 | (read-passwd (format "Password for %s: " pop3-maildrop)))) |
eec82323 | 438 | (if pass |
01c52d31 | 439 | (let ((hash (md5 (concat pop3-timestamp pass) nil nil 'binary))) |
6748645f | 440 | (pop3-send-command process (format "APOP %s %s" user hash)) |
eec82323 LMI |
441 | (let ((response (pop3-read-response process t))) |
442 | (if (not (and response (string-match "+OK" response))) | |
443 | (pop3-quit process))))) | |
444 | )) | |
445 | ||
6748645f LMI |
446 | ;; TRANSACTION STATE |
447 | ||
eec82323 LMI |
448 | (defun pop3-stat (process) |
449 | "Return the number of messages in the maildrop and the maildrop's size." | |
450 | (pop3-send-command process "STAT") | |
451 | (let ((response (pop3-read-response process t))) | |
e9bd5782 MB |
452 | (list (string-to-number (nth 1 (split-string response " "))) |
453 | (string-to-number (nth 2 (split-string response " ")))) | |
eec82323 LMI |
454 | )) |
455 | ||
456 | (defun pop3-list (process &optional msg) | |
457 | "Scan listing of available messages. | |
458 | This function currently does nothing.") | |
459 | ||
460 | (defun pop3-retr (process msg crashbuf) | |
461 | "Retrieve message-id MSG to buffer CRASHBUF." | |
462 | (pop3-send-command process (format "RETR %s" msg)) | |
463 | (pop3-read-response process) | |
464 | (let ((start pop3-read-point) end) | |
465 | (save-excursion | |
466 | (set-buffer (process-buffer process)) | |
467 | (while (not (re-search-forward "^\\.\r\n" nil t)) | |
8903a9c8 | 468 | (pop3-accept-process-output process) |
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469 | (goto-char start)) |
470 | (setq pop3-read-point (point-marker)) | |
e62e7654 MB |
471 | ;; this code does not seem to work for some POP servers... |
472 | ;; and I cannot figure out why not. | |
473 | ;; (goto-char (match-beginning 0)) | |
474 | ;; (backward-char 2) | |
475 | ;; (if (not (looking-at "\r\n")) | |
476 | ;; (insert "\r\n")) | |
477 | ;; (re-search-forward "\\.\r\n") | |
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478 | (goto-char (match-beginning 0)) |
479 | (setq end (point-marker)) | |
480 | (pop3-clean-region start end) | |
481 | (pop3-munge-message-separator start end) | |
482 | (save-excursion | |
483 | (set-buffer crashbuf) | |
484 | (erase-buffer)) | |
485 | (copy-to-buffer crashbuf start end) | |
486 | (delete-region start end) | |
487 | ))) | |
488 | ||
489 | (defun pop3-dele (process msg) | |
490 | "Mark message-id MSG as deleted." | |
491 | (pop3-send-command process (format "DELE %s" msg)) | |
492 | (pop3-read-response process)) | |
493 | ||
494 | (defun pop3-noop (process msg) | |
495 | "No-operation." | |
496 | (pop3-send-command process "NOOP") | |
497 | (pop3-read-response process)) | |
498 | ||
499 | (defun pop3-last (process) | |
500 | "Return highest accessed message-id number for the session." | |
501 | (pop3-send-command process "LAST") | |
502 | (let ((response (pop3-read-response process t))) | |
e9bd5782 | 503 | (string-to-number (nth 1 (split-string response " "))) |
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504 | )) |
505 | ||
506 | (defun pop3-rset (process) | |
507 | "Remove all delete marks from current maildrop." | |
508 | (pop3-send-command process "RSET") | |
509 | (pop3-read-response process)) | |
510 | ||
511 | ;; UPDATE | |
512 | ||
513 | (defun pop3-quit (process) | |
514 | "Close connection to POP3 server. | |
515 | Tell server to remove all messages marked as deleted, unlock the maildrop, | |
516 | and close the connection." | |
517 | (pop3-send-command process "QUIT") | |
518 | (pop3-read-response process t) | |
519 | (if process | |
520 | (save-excursion | |
521 | (set-buffer (process-buffer process)) | |
522 | (goto-char (point-max)) | |
523 | (delete-process process)))) | |
524 | \f | |
525 | ;; Summary of POP3 (Post Office Protocol version 3) commands and responses | |
526 | ||
527 | ;;; AUTHORIZATION STATE | |
528 | ||
529 | ;; Initial TCP connection | |
530 | ;; Arguments: none | |
531 | ;; Restrictions: none | |
532 | ;; Possible responses: | |
533 | ;; +OK [POP3 server ready] | |
534 | ||
535 | ;; USER name | |
536 | ;; Arguments: a server specific user-id (required) | |
537 | ;; Restrictions: authorization state [after unsuccessful USER or PASS | |
538 | ;; Possible responses: | |
539 | ;; +OK [valid user-id] | |
540 | ;; -ERR [invalid user-id] | |
541 | ||
542 | ;; PASS string | |
543 | ;; Arguments: a server/user-id specific password (required) | |
544 | ;; Restrictions: authorization state, after successful USER | |
545 | ;; Possible responses: | |
546 | ;; +OK [maildrop locked and ready] | |
547 | ;; -ERR [invalid password] | |
548 | ;; -ERR [unable to lock maildrop] | |
549 | ||
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550 | ;; STLS (RFC 2595) |
551 | ;; Arguments: none | |
552 | ;; Restrictions: Only permitted in AUTHORIZATION state. | |
553 | ;; Possible responses: | |
554 | ;; +OK | |
555 | ;; -ERR | |
556 | ||
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557 | ;;; TRANSACTION STATE |
558 | ||
559 | ;; STAT | |
560 | ;; Arguments: none | |
561 | ;; Restrictions: transaction state | |
562 | ;; Possible responses: | |
563 | ;; +OK nn mm [# of messages, size of maildrop] | |
564 | ||
565 | ;; LIST [msg] | |
566 | ;; Arguments: a message-id (optional) | |
567 | ;; Restrictions: transaction state; msg must not be deleted | |
568 | ;; Possible responses: | |
569 | ;; +OK [scan listing follows] | |
570 | ;; -ERR [no such message] | |
571 | ||
572 | ;; RETR msg | |
573 | ;; Arguments: a message-id (required) | |
574 | ;; Restrictions: transaction state; msg must not be deleted | |
575 | ;; Possible responses: | |
576 | ;; +OK [message contents follow] | |
577 | ;; -ERR [no such message] | |
578 | ||
579 | ;; DELE msg | |
580 | ;; Arguments: a message-id (required) | |
581 | ;; Restrictions: transaction state; msg must not be deleted | |
582 | ;; Possible responses: | |
583 | ;; +OK [message deleted] | |
584 | ;; -ERR [no such message] | |
585 | ||
586 | ;; NOOP | |
587 | ;; Arguments: none | |
588 | ;; Restrictions: transaction state | |
589 | ;; Possible responses: | |
590 | ;; +OK | |
591 | ||
592 | ;; LAST | |
593 | ;; Arguments: none | |
594 | ;; Restrictions: transaction state | |
595 | ;; Possible responses: | |
596 | ;; +OK nn [highest numbered message accessed] | |
597 | ||
598 | ;; RSET | |
599 | ;; Arguments: none | |
600 | ;; Restrictions: transaction state | |
601 | ;; Possible responses: | |
602 | ;; +OK [all delete marks removed] | |
603 | ||
604 | ;;; UPDATE STATE | |
605 | ||
606 | ;; QUIT | |
607 | ;; Arguments: none | |
608 | ;; Restrictions: none | |
609 | ;; Possible responses: | |
610 | ;; +OK [TCP connection closed] | |
dd5da9b8 DL |
611 | |
612 | (provide 'pop3) | |
613 | ||
cbee283d | 614 | ;; arch-tag: 2facc142-1d74-498e-82af-4659b64cac12 |
dd5da9b8 | 615 | ;;; pop3.el ends here |