1 ;;; elmo-nntp.el -- NNTP Interface for ELMO.
3 ;; Copyright 1998,1999,2000 Yuuichi Teranishi <teranisi@gohome.org>
5 ;; Author: Yuuichi Teranishi <teranisi@gohome.org>
6 ;; Keywords: mail, net news
7 ;; Time-stamp: <00/04/28 10:30:51 teranisi>
9 ;; This file is part of ELMO (Elisp Library for Message Orchestration).
11 ;; This program is free software; you can redistribute it and/or modify
12 ;; it under the terms of the GNU General Public License as published by
13 ;; the Free Software Foundation; either version 2, or (at your option)
16 ;; This program is distributed in the hope that it will be useful,
17 ;; but WITHOUT ANY WARRANTY; without even the implied warranty of
18 ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
19 ;; GNU General Public License for more details.
21 ;; You should have received a copy of the GNU General Public License
22 ;; along with GNU Emacs; see the file COPYING. If not, write to the
23 ;; Free Software Foundation, Inc., 59 Temple Place - Suite 330,
24 ;; Boston, MA 02111-1307, USA.
41 (defun-maybe starttls-negotiate (a)))
47 (defvar elmo-nntp-connection-cache nil
48 "Cache of NNTP connection.")
49 ;; buffer local variable
51 (defvar elmo-nntp-list-folders-use-cache 600
52 "*Time to cache of list folders, as the number of seconds.
55 (defvar elmo-nntp-list-folders-cache nil)
56 (defvar elmo-nntp-groups-hashtb nil)
57 (defvar elmo-nntp-groups-async nil)
58 (defvar elmo-nntp-header-fetch-chop-length 200)
60 (defvar elmo-nntp-read-point 0)
62 (defvar elmo-nntp-send-mode-reader t)
64 (defvar elmo-nntp-opened-hook nil)
66 (defvar elmo-nntp-get-folders-securely nil)
68 (defvar elmo-nntp-default-use-xover t)
70 (defvar elmo-nntp-default-use-listgroup t)
72 (defvar elmo-nntp-default-use-list-active t)
74 (defvar elmo-nntp-server-command-alist nil)
77 (defconst elmo-nntp-server-command-index '((xover . 0)
81 (put 'elmo-nntp-setting 'lisp-indent-function 1)
83 (defmacro elmo-nntp-setting (spec &rest body)
84 (` (let* ((ssl (elmo-nntp-spec-ssl (, spec)))
85 (port (elmo-nntp-spec-port (, spec)))
86 (user (elmo-nntp-spec-username (, spec)))
87 (server (elmo-nntp-spec-hostname (, spec)))
88 (folder (elmo-nntp-spec-group (, spec)))
89 (connection (elmo-nntp-get-connection server user port ssl))
90 (buffer (car connection))
91 (process (cadr connection)))
94 (defmacro elmo-nntp-get-server-command (server port)
95 (` (assoc (cons (, server) (, port)) elmo-nntp-server-command-alist)))
97 (defmacro elmo-nntp-set-server-command (server port com value)
99 (unless (setq entry (cdr (elmo-nntp-get-server-command
100 (, server) (, port))))
101 (setq elmo-nntp-server-command-alist
102 (nconc elmo-nntp-server-command-alist
103 (list (cons (cons (, server) (, port))
106 elmo-nntp-default-use-xover
107 elmo-nntp-default-use-listgroup
108 elmo-nntp-default-use-list-active))
111 (cdr (assq (, com) elmo-nntp-server-command-index))
114 (defmacro elmo-nntp-xover-p (server port)
115 (` (let ((entry (elmo-nntp-get-server-command (, server) (, port))))
118 (cdr (assq 'xover elmo-nntp-server-command-index)))
119 elmo-nntp-default-use-xover))))
121 (defmacro elmo-nntp-set-xover (server port value)
122 (` (elmo-nntp-set-server-command (, server) (, port) 'xover (, value))))
124 (defmacro elmo-nntp-listgroup-p (server port)
125 (` (let ((entry (elmo-nntp-get-server-command (, server) (, port))))
128 (cdr (assq 'listgroup elmo-nntp-server-command-index)))
129 elmo-nntp-default-use-listgroup))))
131 (defmacro elmo-nntp-set-listgroup (server port value)
132 (` (elmo-nntp-set-server-command (, server) (, port) 'listgroup (, value))))
134 (defmacro elmo-nntp-list-active-p (server port)
135 (` (let ((entry (elmo-nntp-get-server-command (, server) (, port))))
138 (cdr (assq 'list-active elmo-nntp-server-command-index)))
139 elmo-nntp-default-use-list-active))))
141 (defmacro elmo-nntp-set-list-active (server port value)
142 (` (elmo-nntp-set-server-command (, server) (, port) 'list-active (, value))))
144 (defsubst elmo-nntp-max-number-precedes-list-active-p ()
145 elmo-nntp-max-number-precedes-list-active)
147 (defsubst elmo-nntp-folder-postfix (user server port ssl)
149 (and user (concat ":" user))
151 (null (string= server elmo-default-nntp-server)))
154 (null (eq port elmo-default-nntp-port)))
155 (concat ":" (if (numberp port)
156 (int-to-string port) port)))
157 (unless (eq ssl elmo-default-nntp-ssl)
158 (if (eq ssl 'starttls)
162 (defun elmo-nntp-flush-connection ()
164 (let ((cache elmo-nntp-connection-cache)
167 (setq buffer (car (cdr (car cache))))
168 (if buffer (kill-buffer buffer))
169 (setq process (car (cdr (cdr (car cache)))))
170 (if process (delete-process process))
171 (setq cache (cdr cache)))
172 (setq elmo-nntp-connection-cache nil)))
174 (defun elmo-nntp-get-connection (server user port ssl)
175 (let* ((user-at-host (format "%s@%s" user server))
176 (user-at-host-on-port (concat
177 user-at-host ":" (int-to-string port)
178 (if (eq ssl 'starttls) "!!" (if ssl "!"))))
179 ret-val result buffer process errmsg proc-stat)
180 (if (not (elmo-plugged-p server port))
182 (setq ret-val (assoc user-at-host-on-port elmo-nntp-connection-cache))
184 (or (eq (setq proc-stat
185 (process-status (cadr (cdr ret-val))))
187 (eq proc-stat 'exit)))
188 ;; connection is closed...
190 (kill-buffer (car (cdr ret-val)))
191 (setq elmo-nntp-connection-cache
192 (delete ret-val elmo-nntp-connection-cache))
196 (setq result (elmo-nntp-open-connection server user port ssl))
199 (if process (delete-process process))
200 (if buffer (kill-buffer buffer))
201 (error "Connection failed"))
202 (setq buffer (car result))
203 (setq process (cdr result))
204 (setq elmo-nntp-connection-cache
205 (nconc elmo-nntp-connection-cache
207 (cons user-at-host-on-port
208 (setq ret-val (list buffer process nil))))))
211 (defun elmo-nntp-process-filter (process output)
213 (set-buffer (process-buffer process))
214 (goto-char (point-max))
217 (defun elmo-nntp-read-response (buffer process &optional not-command)
220 (let ((case-fold-search nil)
221 (response-string nil)
222 (response-continue t)
225 (while response-continue
226 (goto-char elmo-nntp-read-point)
227 (while (not (search-forward "\r\n" nil t))
228 (accept-process-output process)
229 (goto-char elmo-nntp-read-point))
231 (setq match-end (point))
232 (setq response-string
233 (buffer-substring elmo-nntp-read-point (- match-end 2)))
234 (goto-char elmo-nntp-read-point)
235 (if (looking-at "[23][0-9]+ .*$")
236 (progn (setq response-continue nil)
237 (setq elmo-nntp-read-point match-end)
240 (concat return-value "\n" response-string)
242 (if (looking-at "[^23][0-9]+ .*$")
243 (progn (setq response-continue nil)
244 (setq elmo-nntp-read-point match-end)
245 (setq return-value nil))
246 (setq elmo-nntp-read-point match-end)
248 (setq response-continue nil))
251 (concat return-value "\n" response-string)
253 (setq elmo-nntp-read-point match-end)))
256 (defun elmo-nntp-read-raw-response (buffer process)
259 (let ((case-fold-search nil))
260 (goto-char elmo-nntp-read-point)
261 (while (not (search-forward "\r\n" nil t))
262 (accept-process-output process)
263 (goto-char elmo-nntp-read-point))
264 (buffer-substring elmo-nntp-read-point (- (point) 2)))))
266 (defun elmo-nntp-read-contents (buffer process)
269 (let ((case-fold-search nil)
271 (goto-char elmo-nntp-read-point)
272 (while (not (re-search-forward "^\\.\r\n" nil t))
273 (accept-process-output process)
274 (goto-char elmo-nntp-read-point))
275 (setq match-end (point))
277 (buffer-substring elmo-nntp-read-point
280 (defun elmo-nntp-read-body (buffer process outbuf)
281 (with-current-buffer buffer
282 (let ((start elmo-nntp-read-point)
285 (while (not (re-search-forward "^\\.\r\n" nil t))
286 (accept-process-output process)
289 (with-current-buffer outbuf
291 (insert-buffer-substring buffer start (- end 3))
292 (elmo-delete-cr-get-content-type)))))
294 (defun elmo-nntp-goto-folder (server folder user port ssl)
295 (let* ((connection (elmo-nntp-get-connection server user port ssl))
296 (buffer (car connection))
297 (process (cadr connection))
298 (cwf (caddr connection)))
301 (if (not (string= cwf folder))
303 (elmo-nntp-send-command buffer
305 (format "group %s" folder))
306 (if (elmo-nntp-read-response buffer process)
307 (setcar (cddr connection) folder)))
312 (defun elmo-nntp-list-folders-get-cache (folder buf)
313 (when (and elmo-nntp-list-folders-use-cache
314 elmo-nntp-list-folders-cache
315 (string-match (concat "^"
318 (nth 1 elmo-nntp-list-folders-cache)
321 (let* ((cache-time (car elmo-nntp-list-folders-cache)))
322 (unless (elmo-time-expire cache-time
323 elmo-nntp-list-folders-use-cache)
327 (insert (nth 2 elmo-nntp-list-folders-cache))
328 (goto-char (point-min))
330 (keep-lines (concat "^" (regexp-quote folder) "\\.")))
334 (defsubst elmo-nntp-catchup-msgdb (msgdb max-number)
335 (let (msgdb-max number-alist)
336 (setq number-alist (elmo-msgdb-get-number-alist msgdb))
337 (setq msgdb-max (car (nth (max (- (length number-alist) 1) 0)
339 (if (or (not msgdb-max)
340 (and msgdb-max max-number
341 (< msgdb-max max-number)))
342 (elmo-msgdb-set-number-alist
344 (nconc number-alist (list (cons max-number nil)))))))
346 (defun elmo-nntp-list-folders (spec &optional hierarchy)
347 (elmo-nntp-setting spec
348 (let* ((cwf (caddr connection))
349 (tmp-buffer (get-buffer-create " *ELMO NNTP list folders TMP*"))
350 response ret-val top-ng append-serv use-list-active start)
352 (set-buffer tmp-buffer)
354 (elmo-nntp-goto-folder server folder user port ssl))
355 (setq ret-val (list folder))) ;; add top newsgroups
356 (unless (setq response (elmo-nntp-list-folders-get-cache
358 (when (setq use-list-active (elmo-nntp-list-active-p server port))
359 (elmo-nntp-send-command buffer
363 (null (string= folder "")))
365 (format " %s.*" folder) ""))))
366 (if (elmo-nntp-read-response buffer process t)
367 (if (null (setq response (elmo-nntp-read-contents
369 (error "NNTP List folders failed")
370 (when elmo-nntp-list-folders-use-cache
371 (setq elmo-nntp-list-folders-cache
372 (list (current-time) folder response)))
375 (elmo-nntp-set-list-active server port nil)
376 (setq use-list-active nil)))
377 (when (null use-list-active)
378 (elmo-nntp-send-command buffer process "list")
379 (if (null (and (elmo-nntp-read-response buffer process t)
380 (setq response (elmo-nntp-read-contents
382 (error "NNTP List folders failed"))
383 (when elmo-nntp-list-folders-use-cache
384 (setq elmo-nntp-list-folders-cache
385 (list (current-time) nil response)))
388 (while (string-match (concat "^"
390 (or folder "")) ".*$")
392 (insert (match-string 0 response) "\n")
393 (setq start (match-end 0)))))
394 (goto-char (point-min))
395 (let ((len (count-lines (point-min) (point-max)))
400 (format "^\\(%s[^. ]+\\)\\([. ]\\).*\n"
401 (if folder (concat folder "\\.") "")))
402 (while (looking-at regexp)
403 (setq top-ng (elmo-match-buffer 1))
404 (if (string= (elmo-match-buffer 2) " ")
405 (if (not (or (member top-ng ret-val)
406 (assoc top-ng ret-val)))
407 (setq ret-val (nconc ret-val (list top-ng))))
408 (if (member top-ng ret-val)
409 (setq ret-val (delete top-ng ret-val)))
410 (if (not (assoc top-ng ret-val))
411 (setq ret-val (nconc ret-val (list (list top-ng))))))
413 (and (zerop (% i 10))
414 (elmo-display-progress
415 'elmo-nntp-list-folders "Parsing active..."
419 (while (re-search-forward "\\([^ ]+\\) .*\n" nil t)
420 (setq ret-val (nconc ret-val
421 (list (elmo-match-buffer 1))))
423 (and (zerop (% i 10))
424 (elmo-display-progress
425 'elmo-nntp-list-folders "Parsing active..."
426 (/ (* i 100) len))))))
427 (kill-buffer tmp-buffer)
428 (elmo-display-progress
429 'elmo-nntp-list-folders "Parsing active..."
431 (unless (string= server elmo-default-nntp-server)
432 (setq append-serv (concat "@" server)))
433 (unless (eq port elmo-default-nntp-port)
434 (setq append-serv (concat append-serv ":" (int-to-string port))))
435 (unless (eq ssl elmo-default-nntp-ssl)
437 (setq append-serv (concat append-serv "!")))
438 (if (eq ssl 'starttls)
439 (setq append-serv (concat append-serv "!"))))
440 (mapcar '(lambda (fld)
442 (list (concat "-" (car fld)
446 (concat append-serv))))
451 (concat append-serv)))))
454 (defun elmo-nntp-make-msglist (beg-str end-str)
456 (let ((beg-num (string-to-int beg-str))
457 (end-num (string-to-int end-str))
461 (while (<= i end-num)
462 (insert (format "%s " i))
465 (goto-char (point-min))
466 (read (current-buffer)))))
468 (defun elmo-nntp-list-folder (spec)
469 (elmo-nntp-setting spec
470 (let* ((server (format "%s" server)) ;; delete text property
471 response retval use-listgroup)
473 (when (setq use-listgroup (elmo-nntp-listgroup-p server port))
474 (elmo-nntp-send-command buffer
476 (format "listgroup %s" folder))
477 (if (not (elmo-nntp-read-response buffer process t))
479 (elmo-nntp-set-listgroup server port nil)
480 (setq use-listgroup nil))
481 (if (null (setq response (elmo-nntp-read-contents buffer process)))
482 (error "Fetching listgroup failed"))
483 (setq retval (elmo-string-to-list response))))
486 (elmo-nntp-send-command buffer
488 (format "group %s" folder))
489 (if (null (setq response (elmo-nntp-read-response buffer process)))
490 (error "Select folder failed"))
491 (setcar (cddr connection) folder)
493 (string-match "211 \\([0-9]+\\) \\([0-9]+\\) \\([0-9]+\\) [^.].+$"
495 (> (string-to-int (elmo-match-string 1 response)) 0))
496 (elmo-nntp-make-msglist
497 (elmo-match-string 2 response)
498 (elmo-match-string 3 response))
501 (defun elmo-nntp-max-of-folder (spec)
502 (let* ((port (elmo-nntp-spec-port spec))
503 (user (elmo-nntp-spec-username spec))
504 (server (elmo-nntp-spec-hostname spec))
505 (ssl (elmo-nntp-spec-ssl spec))
506 (folder (elmo-nntp-spec-group spec)))
507 (if elmo-nntp-groups-async
508 (let* ((fld (concat folder
509 (elmo-nntp-folder-postfix user server port ssl)))
510 (entry (elmo-get-hash-val fld elmo-nntp-groups-hashtb)))
514 (error "No such newsgroup \"%s\"" fld)))
515 (let* ((connection (elmo-nntp-get-connection server user port ssl))
516 (buffer (car connection))
517 (process (cadr connection))
518 response e-num end-num)
520 (error "Connection failed"))
522 (elmo-nntp-send-command buffer
524 (format "group %s" folder))
525 (setq response (elmo-nntp-read-response buffer process))
528 "211 \\([0-9]+\\) \\([0-9]+\\) \\([0-9]+\\) [^.].+$"
531 (setq end-num (string-to-int
532 (elmo-match-string 3 response)))
533 (setq e-num (string-to-int
534 (elmo-match-string 1 response)))
535 (cons end-num e-num))
537 (error "Selecting newsgroup \"%s\" failed" folder)
540 (defconst elmo-nntp-overview-index
551 (defun elmo-nntp-create-msgdb-from-overview-string (str
559 (let (ov-list gmark message-id seen
560 ov-entity overview number-alist mark-alist num
561 extras extra ext field field-index)
562 (setq ov-list (elmo-nntp-parse-overview-string str))
564 (setq ov-entity (car ov-list))
566 ; (if (or (> (setq num (string-to-int (aref ov-entity 0)))
570 ; (setq num (int-to-string num))
571 (setq num (string-to-int (aref ov-entity 0)))
572 (when (or (null numlist)
574 (setq extras elmo-msgdb-extra-fields
577 (setq ext (downcase (car extras)))
578 (when (setq field-index (cdr (assoc ext elmo-nntp-overview-index)))
579 (setq field (aref ov-entity field-index))
580 (when (eq field-index 8) ;; xref
581 (setq field (elmo-msgdb-remove-field-string field)))
582 (setq extra (cons (cons ext field) extra)))
583 (setq extras (cdr extras)))
585 (elmo-msgdb-append-element
587 (cons (aref ov-entity 4)
589 (elmo-msgdb-get-last-message-id
592 (elmo-mime-string (elmo-delete-char
598 (elmo-mime-string (or (aref ov-entity 1)
600 (aref ov-entity 3) ;date
604 (aref ov-entity 6)) ; size
605 extra ; extra-field-list
608 (elmo-msgdb-number-add number-alist num
610 (setq message-id (aref ov-entity 4))
611 (setq seen (member message-id seen-list))
612 (if (setq gmark (or (elmo-msgdb-global-mark-get message-id)
613 (if (elmo-cache-exists-p message-id);; XXX
618 (if elmo-nntp-use-cache
622 (elmo-msgdb-mark-append mark-alist
624 (setq ov-list (cdr ov-list)))
625 (list overview number-alist mark-alist)))
627 (defun elmo-nntp-msgdb-create-as-numlist (spec numlist new-mark already-mark
628 seen-mark important-mark
630 "Create msgdb for SPEC for NUMLIST."
631 (elmo-nntp-msgdb-create spec numlist new-mark already-mark
632 seen-mark important-mark seen-list
635 (defun elmo-nntp-msgdb-create (spec numlist new-mark already-mark
636 seen-mark important-mark
637 seen-list &optional as-num)
640 (elmo-nntp-setting spec
641 (let* ((cwf (caddr connection))
642 (filter (and as-num numlist))
643 beg-num end-num cur length
644 ret-val ov-str use-xover)
646 (not (string= cwf folder))
647 (null (elmo-nntp-goto-folder server folder user port ssl)))
648 (error "group %s not found" folder))
649 (when (setq use-xover (elmo-nntp-xover-p server port))
650 (setq beg-num (car numlist)
652 end-num (nth (1- (length numlist)) numlist)
653 length (+ (- end-num beg-num) 1))
654 (message "Getting overview...")
655 (while (<= cur end-num)
656 (elmo-nntp-send-command buffer process
662 elmo-nntp-overview-fetch-chop-length))))
663 (with-current-buffer buffer
668 (elmo-nntp-create-msgdb-from-overview-string
678 (if (null (elmo-nntp-read-response buffer process t))
680 (setq cur end-num);; exit while loop
681 (elmo-nntp-set-xover server port nil)
682 (setq use-xover nil))
683 (if (null (setq ov-str (elmo-nntp-read-contents buffer process)))
684 (error "Fetching overview failed")))
685 (setq cur (+ elmo-nntp-overview-fetch-chop-length cur 1))
686 (elmo-display-progress
687 'elmo-nntp-msgdb-create "Getting overview..."
690 beg-num) 1) 100) length))))
692 (setq ret-val (elmo-nntp-msgdb-create-by-header
693 folder buffer process numlist
694 new-mark already-mark seen-mark seen-list))
695 (with-current-buffer buffer
700 (elmo-nntp-create-msgdb-from-overview-string
709 (elmo-display-progress
710 'elmo-nntp-msgdb-create "Getting overview..." 100)
711 ;; If there are canceled messages, overviews are not obtained
712 ;; to max-number(inn 2.3?).
713 (when (and (elmo-nntp-max-number-precedes-list-active-p)
714 (elmo-nntp-list-active-p server port))
715 (elmo-nntp-send-command buffer process
716 (format "list active %s" folder))
717 (if (null (elmo-nntp-read-response buffer process))
719 (elmo-nntp-set-list-active server port nil)
720 (error "NNTP list command failed")))
721 (elmo-nntp-catchup-msgdb
723 (nth 1 (read (concat "(" (elmo-nntp-read-contents
724 buffer process) ")")))))
727 (defun elmo-nntp-sync-number-alist (spec number-alist)
728 (if (elmo-nntp-max-number-precedes-list-active-p)
729 (elmo-nntp-setting spec
730 (if (elmo-nntp-list-active-p server port)
731 (let* ((cwf (caddr connection))
732 msgdb-max max-number)
733 ;; If there are canceled messages, overviews are not obtained
734 ;; to max-number(inn 2.3?).
736 (not (string= cwf folder))
737 (null (elmo-nntp-goto-folder
738 server folder user port ssl)))
739 (error "group %s not found" folder))
740 (elmo-nntp-send-command buffer process
741 (format "list active %s" folder))
742 (if (null (elmo-nntp-read-response buffer process))
743 (error "NNTP list command failed"))
745 (nth 1 (read (concat "(" (elmo-nntp-read-contents
746 buffer process) ")"))))
748 (car (nth (max (- (length number-alist) 1) 0)
750 (if (or (and number-alist (not msgdb-max))
751 (and msgdb-max max-number
752 (< msgdb-max max-number)))
754 (list (cons max-number nil)))
758 (defun elmo-nntp-msgdb-create-by-header (folder buffer process numlist
759 new-mark already-mark
761 (let ((tmp-buffer (get-buffer-create " *ELMO Overview TMP*"))
763 (elmo-nntp-retrieve-headers
764 buffer tmp-buffer process numlist)
766 (elmo-nntp-msgdb-create-message
767 tmp-buffer (length numlist) folder new-mark already-mark
768 seen-mark seen-list))
769 (kill-buffer tmp-buffer)
772 (defun elmo-nntp-parse-overview-string (string)
774 (let ((tmp-buffer (get-buffer-create " *ELMO Overview TMP*"))
775 ret-list ret-val beg)
776 (set-buffer tmp-buffer)
778 (elmo-set-buffer-multibyte nil)
780 (goto-char (point-min))
784 (setq ret-list (save-match-data
785 (apply 'vector (split-string
786 (buffer-substring beg (point))
791 (setq ret-val (nconc ret-val (list ret-list))))
792 ; (kill-buffer tmp-buffer)
795 (defun elmo-nntp-get-overview (server beg end folder user port ssl)
797 (let* ((connection (elmo-nntp-get-connection server user port ssl))
798 (buffer (car connection))
799 (process (cadr connection))
800 ; (cwf (caddr connection))
801 response errmsg ov-str)
804 (if (null (elmo-nntp-goto-folder server folder user port ssl))
806 (setq errmsg (format "group %s not found." folder))
808 (elmo-nntp-send-command buffer process
809 (format "xover %s-%s" beg end))
810 (if (null (setq response (elmo-nntp-read-response
813 (setq errmsg "Getting overview failed.")
815 (if (null (setq response (elmo-nntp-read-contents
818 ;(setq errmsg "Fetching header failed")
820 (setq ov-str response)
829 (defun elmo-nntp-get-message (server user number folder outbuf port ssl)
830 "Get nntp message on FOLDER at SERVER.
831 Returns message string."
833 (let* ((connection (elmo-nntp-get-connection server user port ssl))
834 (buffer (car connection))
835 (process (cadr connection))
836 (cwf (caddr connection))
840 (not (string= cwf folder)))
841 (if (null (elmo-nntp-goto-folder server folder user port ssl))
843 (setq errmsg (format "group %s not found." folder))
845 (elmo-nntp-send-command buffer process
846 (format "article %s" number))
847 (if (null (setq response (elmo-nntp-read-response
850 (setq errmsg "Fetching message failed")
855 (setq response (elmo-nntp-read-body buffer process outbuf))
857 (goto-char (point-min))
858 (while (re-search-forward "^\\." nil t)
868 (defun elmo-nntp-get-newsgroup-by-msgid (msgid server user port ssl)
869 "Get nntp header string."
871 (let* ((connection (elmo-nntp-get-connection server user port ssl))
872 (buffer (car connection))
873 (process (cadr connection)))
874 (elmo-nntp-send-command buffer process
875 (format "head %s" msgid))
876 (if (elmo-nntp-read-response buffer process)
877 (elmo-nntp-read-contents buffer process))
879 (std11-field-body "Newsgroups"))))
881 (defun elmo-nntp-open-connection (server user portnum ssl)
882 "Open NNTP connection and returns
883 the list of (process session-buffer current-working-folder).
884 Return nil if connection failed."
888 elmo-default-nntp-port))
889 (user-at-host (format "%s@%s" user server))
894 (get-buffer-create (format " *NNTP session to %s:%d" host port)))
896 (set-buffer process-buffer)
897 (elmo-set-buffer-multibyte nil)
900 (elmo-open-network-stream "NNTP" process-buffer host port ssl))
901 (and (null process) (throw 'done nil))
902 (set-process-filter process 'elmo-nntp-process-filter)
903 ;; flush connections when exiting...?
904 ;; (add-hook 'kill-emacs-hook 'elmo-nntp-flush-connection)
906 (set-buffer process-buffer)
907 (elmo-set-buffer-multibyte nil)
908 (make-local-variable 'elmo-nntp-read-point)
909 (setq elmo-nntp-read-point (point-min))
910 (if (null (elmo-nntp-read-response process-buffer process t))
912 (if elmo-nntp-send-mode-reader
913 (elmo-nntp-send-mode-reader process-buffer process))
915 (if (eq ssl 'starttls)
917 (elmo-nntp-send-command process-buffer process "starttls")
918 (elmo-nntp-read-response process-buffer process))
919 (starttls-negotiate process)
920 (error "STARTTLS aborted")))
923 (elmo-nntp-send-command process-buffer process
924 (format "authinfo user %s" user))
925 (if (null (elmo-nntp-read-response process-buffer process))
926 (error "Authinfo failed"))
927 (elmo-nntp-send-command process-buffer process
928 (format "authinfo pass %s"
929 (elmo-get-passwd user-at-host)))
930 (if (null (elmo-nntp-read-response process-buffer process))
932 (elmo-remove-passwd user-at-host)
933 (error "Authinfo failed")))))
934 (run-hooks 'elmo-nntp-opened-hook)) ; XXX
935 (cons process-buffer process)))))
937 (defun elmo-nntp-send-mode-reader (buffer process)
938 (elmo-nntp-send-command buffer
941 (if (null (elmo-nntp-read-response buffer process t))
942 (error "mode reader failed")))
944 (defun elmo-nntp-send-command (buffer process command &optional noerase)
945 "Send COMMAND string to server with sequence number."
950 (goto-char (point-min)))
951 (setq elmo-nntp-read-point (point))
952 (process-send-string process command)
953 (process-send-string process "\r\n")))
955 (defun elmo-nntp-read-msg (spec msg outbuf)
956 (elmo-nntp-get-message (elmo-nntp-spec-hostname spec)
957 (elmo-nntp-spec-username spec)
959 (elmo-nntp-spec-group spec)
961 (elmo-nntp-spec-port spec)
962 (elmo-nntp-spec-ssl spec)))
964 ;(defun elmo-msgdb-nntp-overview-create-range (spec beg end mark)
965 ; (elmo-nntp-overview-create-range hostname beg end mark folder)))
967 ;(defun elmo-msgdb-nntp-max-of-folder (spec)
968 ; (elmo-nntp-max-of-folder hostname folder)))
970 (defun elmo-nntp-append-msg (spec string &optional msg no-see))
972 (defun elmo-nntp-post (hostname content-buf)
973 (let* (;(folder (nth 1 spec))
975 (elmo-nntp-get-connection
977 elmo-default-nntp-user
978 elmo-default-nntp-port elmo-default-nntp-ssl))
979 (buffer (car connection))
980 (process (cadr connection))
981 response has-message-id
984 (set-buffer content-buf)
985 (goto-char (point-min))
986 (if (search-forward mail-header-separator nil t)
987 (delete-region (match-beginning 0)(match-end 0)))
988 (setq has-message-id (std11-field-body "message-id"))
989 (elmo-nntp-send-command buffer process "post")
990 (if (string-match "^340" (setq response
991 (elmo-nntp-read-raw-response
993 (if (string-match "recommended ID \\(<[^@]+@[^>]+>\\)" response)
994 (unless has-message-id
995 (goto-char (point-min))
996 (insert (concat "Message-ID: "
997 (elmo-match-string 1 response)
999 (error "POST failed"))
1001 (run-hooks 'elmo-nntp-post-pre-hook)
1003 (elmo-nntp-send-data process content-buf)
1004 (elmo-nntp-send-command buffer process ".")
1005 ;(elmo-nntp-read-response buffer process t)
1006 (if (not (string-match
1007 "^2" (setq response (elmo-nntp-read-raw-response
1009 (error (concat "NNTP error: " response))))))
1011 (defun elmo-nntp-send-data-line (process data)
1012 (goto-char (point-max))
1014 ;; Escape "." at start of a line
1015 (if (eq (string-to-char data) ?.)
1016 (process-send-string process "."))
1017 (process-send-string process data)
1018 (process-send-string process "\r\n"))
1020 (defun elmo-nntp-send-data (process buffer)
1028 (goto-char (point-min)))
1030 (while data-continue
1034 (setq this-line (point))
1036 (setq this-line-end (point))
1037 (setq sending-data nil)
1038 (setq sending-data (buffer-substring this-line this-line-end))
1039 (if (/= (forward-line 1) 0)
1040 (setq data-continue nil)))
1042 (elmo-nntp-send-data-line process sending-data))))
1045 (defun elmo-nntp-delete-msgs (spec msgs)
1046 "MSGS on FOLDER at SERVER pretended as Deleted. Returns nil if failed."
1047 (let* ((dir (elmo-msgdb-expand-path nil spec))
1048 ; (msgs (mapcar 'string-to-int msgs))
1049 (killed-list (elmo-msgdb-killed-list-load dir)))
1050 (mapcar '(lambda (msg)
1052 (elmo-msgdb-set-as-killed killed-list msg)))
1054 (elmo-msgdb-killed-list-save dir killed-list)
1057 (defun elmo-nntp-check-validity (spec validity-file)
1059 (defun elmo-nntp-sync-validity (spec validity-file)
1062 (defun elmo-nntp-folder-exists-p (spec)
1063 (if (elmo-nntp-plugged-p spec)
1064 (elmo-nntp-setting spec
1065 (elmo-nntp-send-command buffer
1067 (format "group %s" folder))
1068 (elmo-nntp-read-response buffer process))
1071 (defun elmo-nntp-folder-creatable-p (spec)
1074 (defun elmo-nntp-create-folder (spec)
1077 (defun elmo-nntp-search (spec condition &optional from-msgs)
1078 (error "Search by %s for %s is not implemented yet." condition (car spec))
1081 (defun elmo-nntp-get-folders-info-prepare (spec connection-keys)
1083 (elmo-nntp-setting spec
1087 (unless (setq key (assoc (cons buffer process) connection-keys))
1089 (setq key (cons (cons buffer process)
1090 (vector 0 server user port ssl)))
1091 (setq connection-keys (nconc connection-keys (list key))))
1092 (elmo-nntp-send-command buffer
1094 (format "group %s" folder)
1095 t ;; don't erase-buffer
1097 (if elmo-nntp-get-folders-securely
1098 (accept-process-output process 1))
1099 (setq count (aref (cdr key) 0))
1100 (aset (cdr key) 0 (1+ count)))))
1102 (when elmo-auto-change-plugged
1107 (defun elmo-nntp-get-folders-info (connection-keys)
1108 (let ((connections connection-keys)
1109 (cur (get-buffer-create " *ELMO NNTP Temp*")))
1111 (let* ((connect (caar connections))
1112 (key (cdar connections))
1113 (buffer (car connect))
1114 (process (cdr connect))
1115 (count (aref key 0))
1116 (server (aref key 1))
1120 (hashtb (or elmo-nntp-groups-hashtb
1121 (setq elmo-nntp-groups-hashtb
1122 (elmo-make-hash count)))))
1124 (elmo-nntp-groups-read-response buffer cur process count)
1126 (goto-char (point-min))
1127 (let ((case-replace nil)
1128 (postfix (elmo-nntp-folder-postfix user server port ssl)))
1129 (if (not (string= postfix ""))
1131 (replace-regexp "^\\(211 [0-9]+ [0-9]+ [0-9]+ [^ \n]+\\).*$"
1132 (concat "\\1" postfix)))))
1133 (let (len min max group)
1136 (when (= (following-char) ?2)
1138 (setq len (read cur)
1141 (set (setq group (let ((obarray hashtb)) (read cur)))
1142 (list len min max)))
1143 (error (and group (symbolp group) (set group nil))))
1145 (setq connections (cdr connections))))
1148 ;; original is 'nntp-retrieve-groups [Gnus]
1149 (defun elmo-nntp-groups-read-response (buffer tobuffer process count)
1151 (last-point (point-min)))
1154 (accept-process-output process 1)
1156 ;; Wait for all replies.
1157 (message "Getting folders info...")
1159 (goto-char last-point)
1161 (while (re-search-forward "^[0-9]" nil t)
1164 (setq last-point (point))
1166 (accept-process-output process 1)
1168 (and (zerop (% received 10))
1169 (elmo-display-progress
1170 'elmo-nntp-groups-read-response "Getting folders info..."
1171 (/ (* received 100) count)))
1173 (elmo-display-progress
1174 'elmo-nntp-groups-read-response "Getting folders info..."
1176 ;; Wait for the reply from the final command.
1177 (goto-char (point-max))
1178 (re-search-backward "^[0-9]" nil t)
1179 (when (looking-at "^[23]")
1181 (goto-char (point-max))
1182 (not (re-search-backward "\r?\n" (- (point) 3) t)))
1183 (accept-process-output process 1)
1185 ;; Now all replies are received. We remove CRs.
1186 (goto-char (point-min))
1187 (while (search-forward "\r" nil t)
1188 (replace-match "" t t))
1189 (copy-to-buffer tobuffer (point-min) (point-max)))))
1191 (defun elmo-nntp-make-groups-hashtb (folders &optional size)
1192 (let ((hashtb (or elmo-nntp-groups-hashtb
1193 (setq elmo-nntp-groups-hashtb
1194 (elmo-make-hash (or size (length folders)))))))
1197 (or (elmo-get-hash-val fld hashtb)
1198 (elmo-set-hash-val fld nil hashtb)))
1202 ;; from nntp.el [Gnus]
1204 (defsubst elmo-nntp-next-result-arrived-p ()
1206 ((eq (following-char) ?2)
1207 (if (re-search-forward "\n\\.\r?\n" nil t)
1210 ((looking-at "[34]")
1211 (if (search-forward "\n" nil t)
1217 (defun elmo-nntp-retrieve-headers (buffer tobuffer process articles)
1218 "Retrieve the headers of ARTICLES."
1222 (let ((number (length articles))
1225 (last-point (point-min))
1227 ;; Send HEAD commands.
1228 (while (setq article (pop articles))
1229 (elmo-nntp-send-command
1232 (format "head %s" article)
1233 t ;; not erase-buffer
1235 (setq count (1+ count))
1236 ;; Every 200 requests we have to read the stream in
1237 ;; order to avoid deadlocks.
1238 (when (or (null articles) ;All requests have been sent.
1239 (zerop (% count elmo-nntp-header-fetch-chop-length)))
1240 (accept-process-output process 1)
1244 (goto-char last-point)
1246 (while (elmo-nntp-next-result-arrived-p)
1247 (setq last-point (point))
1248 (setq received (1+ received)))
1250 (and (zerop (% received 20))
1251 (elmo-display-progress
1252 'elmo-nntp-retrieve-headers "Getting headers..."
1253 (/ (* received 100) number)))
1254 (accept-process-output process 1)
1257 (elmo-display-progress
1258 'elmo-nntp-retrieve-headers "Getting headers..." 100)
1259 (message "Getting headers...done")
1260 ;; Remove all "\r"'s.
1261 (goto-char (point-min))
1262 (while (search-forward "\r\n" nil t)
1263 (replace-match "\n"))
1264 (copy-to-buffer tobuffer (point-min) (point-max)))))
1268 (defun elmo-nntp-msgdb-create-message (buffer len folder new-mark
1269 already-mark seen-mark seen-list)
1272 overview number-alist mark-alist
1273 entity i num gmark seen message-id)
1275 (elmo-set-buffer-multibyte nil)
1276 (goto-char (point-min))
1278 (message "Creating msgdb...")
1280 (setq beg (save-excursion (forward-line 1) (point)))
1282 (and (looking-at "^2[0-9]*[ ]+\\([0-9]+\\)")
1284 (elmo-match-buffer 1))))
1285 (elmo-nntp-next-result-arrived-p)
1290 (narrow-to-region beg (point))
1292 (elmo-msgdb-create-overview-from-buffer num))
1295 (elmo-msgdb-append-element
1298 (elmo-msgdb-number-add number-alist
1299 (elmo-msgdb-overview-entity-get-number entity)
1301 (setq message-id (car entity))
1302 (setq seen (member message-id seen-list))
1304 (or (elmo-msgdb-global-mark-get message-id)
1305 (if (elmo-cache-exists-p message-id);; XXX
1313 (elmo-msgdb-mark-append
1318 (and (zerop (% i 20))
1319 (elmo-display-progress
1320 'elmo-nntp-msgdb-create-message "Creating msgdb..."
1321 (/ (* i 100) len))))
1322 (elmo-display-progress
1323 'elmo-nntp-msgdb-create-message "Creating msgdb..." 100)
1324 (list overview number-alist mark-alist))))
1326 (defun elmo-nntp-use-cache-p (spec number)
1327 elmo-nntp-use-cache)
1329 (defun elmo-nntp-local-file-p (spec number)
1332 (defun elmo-nntp-port-label (spec)
1334 (if (elmo-nntp-spec-ssl spec) "!ssl" "")))
1336 (defsubst elmo-nntp-portinfo (spec)
1337 (list (elmo-nntp-spec-hostname spec)
1338 (elmo-nntp-spec-port spec)))
1340 (defun elmo-nntp-plugged-p (spec)
1341 (apply 'elmo-plugged-p
1342 (append (elmo-nntp-portinfo spec)
1343 (list nil (quote (elmo-nntp-port-label spec))))))
1345 (defun elmo-nntp-set-plugged (spec plugged add)
1346 (apply 'elmo-set-plugged plugged
1347 (append (elmo-nntp-portinfo spec)
1348 (list nil nil (quote (elmo-nntp-port-label spec)) add))))
1350 (defalias 'elmo-nntp-list-folder-unread
1351 'elmo-generic-list-folder-unread)
1352 (defalias 'elmo-nntp-list-folder-important
1353 'elmo-generic-list-folder-important)
1354 (defalias 'elmo-nntp-commit 'elmo-generic-commit)
1356 (provide 'elmo-nntp)
1358 ;;; elmo-nntp.el ends here