1 ;;; gnus-int.el --- backend interface functions for Gnus
3 ;; Copyright (C) 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004
4 ;; 2005, 2006 Free Software Foundation, Inc.
6 ;; Author: Lars Magne Ingebrigtsen <larsi@gnus.org>
7 ;; MORIOKA Tomohiko <morioka@jaist.ac.jp>
10 ;; This file is part of GNU Emacs.
12 ;; GNU Emacs is free software; you can redistribute it and/or modify
13 ;; it under the terms of the GNU General Public License as published by
14 ;; the Free Software Foundation; either version 2, or (at your option)
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.
22 ;; You should have received a copy of the GNU General Public License
23 ;; along with GNU Emacs; see the file COPYING. If not, write to the
24 ;; Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
25 ;; Boston, MA 02110-1301, USA.
31 (eval-when-compile (require 'cl))
37 (autoload 'gnus-agent-expire "gnus-agent")
38 (autoload 'gnus-agent-regenerate-group "gnus-agent")
39 (autoload 'gnus-agent-read-servers-validate-native "gnus-agent")
41 (defcustom gnus-open-server-hook nil
42 "Hook called just before opening connection to the news server."
46 (defcustom gnus-server-unopen-status nil
47 "The default status if the server is not able to open.
48 If the server is covered by Gnus agent, the possible values are
49 `denied', set the server denied; `offline', set the server offline;
50 nil, ask user. If the server is not covered by Gnus agent, set the
54 :type '(choice (const :tag "Ask" nil)
55 (const :tag "Deny server" denied)
56 (const :tag "Unplug Agent" offline)))
58 (defvar gnus-internal-registry-spool-current-method nil
59 "The current method, for the registry.")
62 ;;; Server Communication
65 (defun gnus-start-news-server (&optional confirm)
66 "Open a method for getting news.
67 If CONFIRM is non-nil, the user will be asked for an NNTP server."
69 (if gnus-current-select-method
70 ;; Stream is already opened.
73 (unless gnus-nntp-service
74 (setq gnus-nntp-server nil))
76 ;; Read server name with completion.
77 (setq gnus-nntp-server
78 (completing-read "NNTP server: "
80 (cons (list gnus-nntp-server)
81 gnus-secondary-servers))
82 nil nil gnus-nntp-server)))
84 (when (and gnus-nntp-server
85 (stringp gnus-nntp-server)
86 (not (string= gnus-nntp-server "")))
87 (setq gnus-select-method
88 (cond ((or (string= gnus-nntp-server "")
89 (string= gnus-nntp-server "::"))
90 (list 'nnspool (system-name)))
91 ((string-match "^:" gnus-nntp-server)
92 (list 'nnmh gnus-nntp-server
94 (file-name-as-directory
96 (substring gnus-nntp-server 1) "~/")))
97 (list 'nnmh-get-new-mail nil)))
99 (list 'nntp gnus-nntp-server)))))
101 (setq how (car gnus-select-method))
105 (gnus-message 5 "Looking up local news spool..."))
108 (gnus-message 5 "Looking up mh spool..."))
111 (setq gnus-current-select-method gnus-select-method)
112 (gnus-run-hooks 'gnus-open-server-hook)
114 ;; Partially validate agent covered methods now that the
115 ;; gnus-select-method is known.
118 ;; NOTE: This is here for one purpose only. By validating
119 ;; the current select method, it converts the old 5.10.3,
120 ;; and earlier, format to the current format. That enables
121 ;; the agent code within gnus-open-server to function
123 (gnus-agent-read-servers-validate-native gnus-select-method))
126 ;; gnus-open-server-hook might have opened it
127 (gnus-server-opened gnus-select-method)
128 (gnus-open-server gnus-select-method)
132 "%s (%s) open error: '%s'. Continue? "
133 (car gnus-select-method) (cadr gnus-select-method)
134 (gnus-status-message gnus-select-method)))
135 (gnus-error 1 "Couldn't open server on %s"
136 (nth 1 gnus-select-method))))))
138 (defun gnus-check-group (group)
139 "Try to make sure that the server where GROUP exists is alive."
140 (let ((method (gnus-find-method-for-group group)))
141 (or (gnus-server-opened method)
142 (gnus-open-server method))))
144 (defun gnus-check-server (&optional method silent)
145 "Check whether the connection to METHOD is down.
146 If METHOD is nil, use `gnus-select-method'.
147 If it is down, start it up (again)."
148 (let ((method (or method gnus-select-method))
150 ;; Transform virtual server names into select methods.
151 (when (stringp method)
152 (setq method (gnus-server-to-method method)))
153 (if (gnus-server-opened method)
154 ;; The stream is already opened.
158 (gnus-message 5 "Opening %s server%s..." (car method)
159 (if (equal (nth 1 method) "") ""
160 (format " on %s" (nth 1 method)))))
161 (gnus-run-hooks 'gnus-open-server-hook)
164 (setq result (gnus-open-server method))
165 (quit (message "Quit gnus-check-server")
168 (gnus-message 5 "Opening %s server%s...%s" (car method)
169 (if (equal (nth 1 method) "") ""
170 (format " on %s" (nth 1 method)))
171 (if result "done" "failed")))))))
173 (defun gnus-get-function (method function &optional noerror)
174 "Return a function symbol based on METHOD and FUNCTION."
175 ;; Translate server names into methods.
177 (error "Attempted use of a nil select method"))
178 (when (stringp method)
179 (setq method (gnus-server-to-method method)))
180 ;; Check cache of constructed names.
181 (let* ((method-sym (if gnus-agent
182 (inline (gnus-agent-get-function method))
184 (method-fns (get method-sym 'gnus-method-functions))
185 (func (let ((method-fnlist-elt (assq function method-fns)))
186 (unless method-fnlist-elt
187 (setq method-fnlist-elt
189 (intern (format "%s-%s" method-sym function))))
190 (put method-sym 'gnus-method-functions
191 (cons method-fnlist-elt method-fns)))
192 (cdr method-fnlist-elt))))
193 ;; Maybe complain if there is no function.
194 (unless (fboundp func)
196 (error "Trying to require a method that doesn't exist"))
197 (require (car method))
198 (when (not (fboundp func))
201 (error "No such function: %s" func))))
206 ;;; Interface functions to the backends.
209 (defun gnus-open-server (gnus-command-method)
210 "Open a connection to GNUS-COMMAND-METHOD."
211 (when (stringp gnus-command-method)
212 (setq gnus-command-method (gnus-server-to-method gnus-command-method)))
213 (let ((elem (assoc gnus-command-method gnus-opened-servers)))
214 ;; If this method was previously denied, we just return nil.
215 (if (eq (nth 1 elem) 'denied)
217 (gnus-message 1 "Denied server")
220 (let* ((open-server-function (gnus-get-function gnus-command-method 'open-server))
223 (funcall open-server-function
224 (nth 1 gnus-command-method)
225 (nthcdr 2 gnus-command-method))
227 (gnus-message 1 (format
228 "Unable to open server due to: %s"
229 (error-message-string err)))
232 (gnus-message 1 "Quit trying to open server")
235 ;; If this hasn't been opened before, we add it to the list.
237 (setq elem (list gnus-command-method nil)
238 gnus-opened-servers (cons elem gnus-opened-servers)))
239 ;; Set the status of this server.
242 (if (eq open-server-function #'nnagent-open-server)
243 ;; The agent's backend has a "special" status
247 (gnus-agent-method-p gnus-command-method))
248 (cond (gnus-server-unopen-status
249 ;; Set the server's status to the unopen
250 ;; status. If that status is offline,
251 ;; recurse to open the agent's backend.
252 (setq open-offline (eq gnus-server-unopen-status 'offline))
253 gnus-server-unopen-status)
255 (not gnus-batch-mode)
257 (format "Unable to open %s:%s, go offline? "
258 (car gnus-command-method)
259 (cadr gnus-command-method))))
260 (setq open-offline t)
263 ;; This agentized server was still denied
266 ;; This unagentized server must be denied
269 ;; NOTE: I MUST set the server's status to offline before this
270 ;; recursive call as this status will drive the
271 ;; gnus-get-function (called above) to return the agent's
274 ;; Recursively open this offline server to perform the
275 ;; open-server function of the agent's backend.
276 (let ((gnus-server-unopen-status 'denied))
277 ;; Bind gnus-server-unopen-status to avoid recursively
278 ;; prompting with "go offline?". This is only a concern
279 ;; when the agent's backend fails to open the server.
280 (gnus-open-server gnus-command-method))
283 (defun gnus-close-server (gnus-command-method)
284 "Close the connection to GNUS-COMMAND-METHOD."
285 (when (stringp gnus-command-method)
286 (setq gnus-command-method (gnus-server-to-method gnus-command-method)))
287 (funcall (gnus-get-function gnus-command-method 'close-server)
288 (nth 1 gnus-command-method)))
290 (defun gnus-request-list (gnus-command-method)
291 "Request the active file from GNUS-COMMAND-METHOD."
292 (when (stringp gnus-command-method)
293 (setq gnus-command-method (gnus-server-to-method gnus-command-method)))
294 (funcall (gnus-get-function gnus-command-method 'request-list)
295 (nth 1 gnus-command-method)))
297 (defun gnus-request-list-newsgroups (gnus-command-method)
298 "Request the newsgroups file from GNUS-COMMAND-METHOD."
299 (when (stringp gnus-command-method)
300 (setq gnus-command-method (gnus-server-to-method gnus-command-method)))
301 (funcall (gnus-get-function gnus-command-method 'request-list-newsgroups)
302 (nth 1 gnus-command-method)))
304 (defun gnus-request-newgroups (date gnus-command-method)
305 "Request all new groups since DATE from GNUS-COMMAND-METHOD."
306 (when (stringp gnus-command-method)
307 (setq gnus-command-method (gnus-server-to-method gnus-command-method)))
308 (let ((func (gnus-get-function gnus-command-method 'request-newgroups t)))
310 (funcall func date (nth 1 gnus-command-method)))))
312 (defun gnus-server-opened (gnus-command-method)
313 "Check whether a connection to GNUS-COMMAND-METHOD has been opened."
314 (unless (eq (gnus-server-status gnus-command-method)
316 (when (stringp gnus-command-method)
317 (setq gnus-command-method (gnus-server-to-method gnus-command-method)))
318 (funcall (inline (gnus-get-function gnus-command-method 'server-opened))
319 (nth 1 gnus-command-method))))
321 (defun gnus-status-message (gnus-command-method)
322 "Return the status message from GNUS-COMMAND-METHOD.
323 If GNUS-COMMAND-METHOD is a string, it is interpreted as a group
324 name. The method this group uses will be queried."
325 (let ((gnus-command-method
326 (if (stringp gnus-command-method)
327 (gnus-find-method-for-group gnus-command-method)
328 gnus-command-method)))
329 (funcall (gnus-get-function gnus-command-method 'status-message)
330 (nth 1 gnus-command-method))))
332 (defun gnus-request-regenerate (gnus-command-method)
333 "Request a data generation from GNUS-COMMAND-METHOD."
334 (when (stringp gnus-command-method)
335 (setq gnus-command-method (gnus-server-to-method gnus-command-method)))
336 (funcall (gnus-get-function gnus-command-method 'request-regenerate)
337 (nth 1 gnus-command-method)))
339 (defun gnus-request-compact-group (group)
340 (let* ((method (gnus-find-method-for-group group))
341 (gnus-command-method method)
343 (funcall (gnus-get-function gnus-command-method
344 'request-compact-group)
345 (gnus-group-real-name group)
346 (nth 1 gnus-command-method) t)))
349 (defun gnus-request-compact (gnus-command-method)
350 "Request groups compaction from GNUS-COMMAND-METHOD."
351 (when (stringp gnus-command-method)
352 (setq gnus-command-method (gnus-server-to-method gnus-command-method)))
353 (funcall (gnus-get-function gnus-command-method 'request-compact)
354 (nth 1 gnus-command-method)))
356 (defun gnus-request-group (group &optional dont-check gnus-command-method)
357 "Request GROUP. If DONT-CHECK, no information is required."
358 (let ((gnus-command-method
359 (or gnus-command-method (inline (gnus-find-method-for-group group)))))
360 (when (stringp gnus-command-method)
361 (setq gnus-command-method
362 (inline (gnus-server-to-method gnus-command-method))))
363 (funcall (inline (gnus-get-function gnus-command-method 'request-group))
364 (gnus-group-real-name group) (nth 1 gnus-command-method)
367 (defun gnus-list-active-group (group)
368 "Request active information on GROUP."
369 (let ((gnus-command-method (gnus-find-method-for-group group))
370 (func 'list-active-group))
371 (when (gnus-check-backend-function func group)
372 (funcall (gnus-get-function gnus-command-method func)
373 (gnus-group-real-name group) (nth 1 gnus-command-method)))))
375 (defun gnus-request-group-description (group)
376 "Request a description of GROUP."
377 (let ((gnus-command-method (gnus-find-method-for-group group))
378 (func 'request-group-description))
379 (when (gnus-check-backend-function func group)
380 (funcall (gnus-get-function gnus-command-method func)
381 (gnus-group-real-name group) (nth 1 gnus-command-method)))))
383 (defun gnus-request-group-articles (group)
384 "Request a list of existing articles in GROUP."
385 (let ((gnus-command-method (gnus-find-method-for-group group))
386 (func 'request-group-articles))
387 (when (gnus-check-backend-function func group)
388 (funcall (gnus-get-function gnus-command-method func)
389 (gnus-group-real-name group) (nth 1 gnus-command-method)))))
391 (defun gnus-close-group (group)
392 "Request the GROUP be closed."
393 (let ((gnus-command-method (inline (gnus-find-method-for-group group))))
394 (funcall (gnus-get-function gnus-command-method 'close-group)
395 (gnus-group-real-name group) (nth 1 gnus-command-method))))
397 (defun gnus-retrieve-headers (articles group &optional fetch-old)
398 "Request headers for ARTICLES in GROUP.
399 If FETCH-OLD, retrieve all headers (or some subset thereof) in the group."
400 (let ((gnus-command-method (gnus-find-method-for-group group)))
402 ((and gnus-use-cache (numberp (car articles)))
403 (gnus-cache-retrieve-headers articles group fetch-old))
404 ((and gnus-agent (gnus-online gnus-command-method)
405 (gnus-agent-method-p gnus-command-method))
406 (gnus-agent-retrieve-headers articles group fetch-old))
408 (funcall (gnus-get-function gnus-command-method 'retrieve-headers)
409 articles (gnus-group-real-name group)
410 (nth 1 gnus-command-method) fetch-old)))))
412 (defun gnus-retrieve-articles (articles group)
413 "Request ARTICLES in GROUP."
414 (let ((gnus-command-method (gnus-find-method-for-group group)))
415 (funcall (gnus-get-function gnus-command-method 'retrieve-articles)
416 articles (gnus-group-real-name group)
417 (nth 1 gnus-command-method))))
419 (defun gnus-retrieve-groups (groups gnus-command-method)
420 "Request active information on GROUPS from GNUS-COMMAND-METHOD."
421 (when (stringp gnus-command-method)
422 (setq gnus-command-method (gnus-server-to-method gnus-command-method)))
423 (funcall (gnus-get-function gnus-command-method 'retrieve-groups)
424 groups (nth 1 gnus-command-method)))
426 (defun gnus-request-type (group &optional article)
427 "Return the type (`post' or `mail') of GROUP (and ARTICLE)."
428 (let ((gnus-command-method (gnus-find-method-for-group group)))
429 (if (not (gnus-check-backend-function
430 'request-type (car gnus-command-method)))
432 (funcall (gnus-get-function gnus-command-method 'request-type)
433 (gnus-group-real-name group) article))))
435 (defun gnus-request-set-mark (group action)
436 "Set marks on articles in the back end."
437 (let ((gnus-command-method (gnus-find-method-for-group group)))
438 (if (not (gnus-check-backend-function
439 'request-set-mark (car gnus-command-method)))
441 (funcall (gnus-get-function gnus-command-method 'request-set-mark)
442 (gnus-group-real-name group) action
443 (nth 1 gnus-command-method)))))
445 (defun gnus-request-update-mark (group article mark)
446 "Allow the back end to change the mark the user tries to put on an article."
447 (let ((gnus-command-method (gnus-find-method-for-group group)))
448 (if (not (gnus-check-backend-function
449 'request-update-mark (car gnus-command-method)))
451 (funcall (gnus-get-function gnus-command-method 'request-update-mark)
452 (gnus-group-real-name group) article mark))))
454 (defun gnus-request-article (article group &optional buffer)
455 "Request the ARTICLE in GROUP.
456 ARTICLE can either be an article number or an article Message-ID.
457 If BUFFER, insert the article in that group."
458 (let ((gnus-command-method (gnus-find-method-for-group group)))
459 (funcall (gnus-get-function gnus-command-method 'request-article)
460 article (gnus-group-real-name group)
461 (nth 1 gnus-command-method) buffer)))
463 (defun gnus-request-head (article group)
464 "Request the head of ARTICLE in GROUP."
465 (let* ((gnus-command-method (gnus-find-method-for-group group))
466 (head (gnus-get-function gnus-command-method 'request-head t))
472 (gnus-cache-request-article article group))
473 (setq res (cons group article)
475 ;; Check the agent cache.
476 ((gnus-agent-request-article article group)
477 (setq res (cons group article)
479 ;; Use `head' function.
481 (setq res (funcall head article (gnus-group-real-name group)
482 (nth 1 gnus-command-method))))
483 ;; Use `article' function.
485 (setq res (gnus-request-article article group)
489 (set-buffer nntp-server-buffer)
490 (goto-char (point-min))
491 (when (search-forward "\n\n" nil t)
492 (delete-region (1- (point)) (point-max)))
493 (nnheader-fold-continuation-lines)))
496 (defun gnus-request-body (article group)
497 "Request the body of ARTICLE in GROUP."
498 (let* ((gnus-command-method (gnus-find-method-for-group group))
499 (head (gnus-get-function gnus-command-method 'request-body t))
505 (gnus-cache-request-article article group))
506 (setq res (cons group article)
508 ;; Check the agent cache.
509 ((gnus-agent-request-article article group)
510 (setq res (cons group article)
512 ;; Use `head' function.
514 (setq res (funcall head article (gnus-group-real-name group)
515 (nth 1 gnus-command-method))))
516 ;; Use `article' function.
518 (setq res (gnus-request-article article group)
522 (set-buffer nntp-server-buffer)
523 (goto-char (point-min))
524 (when (search-forward "\n\n" nil t)
525 (delete-region (point-min) (1- (point))))))
528 (defun gnus-request-post (gnus-command-method)
529 "Post the current buffer using GNUS-COMMAND-METHOD."
530 (when (stringp gnus-command-method)
531 (setq gnus-command-method (gnus-server-to-method gnus-command-method)))
532 (funcall (gnus-get-function gnus-command-method 'request-post)
533 (nth 1 gnus-command-method)))
535 (defun gnus-request-scan (group gnus-command-method)
536 "Request a SCAN being performed in GROUP from GNUS-COMMAND-METHOD.
537 If GROUP is nil, all groups on GNUS-COMMAND-METHOD are scanned."
538 (let ((gnus-command-method
539 (if group (gnus-find-method-for-group group) gnus-command-method))
540 (gnus-inhibit-demon t)
541 (mail-source-plugged gnus-plugged))
542 (when (or gnus-plugged (not (gnus-agent-method-p gnus-command-method)))
543 (setq gnus-internal-registry-spool-current-method gnus-command-method)
544 (funcall (gnus-get-function gnus-command-method 'request-scan)
545 (and group (gnus-group-real-name group))
546 (nth 1 gnus-command-method)))))
548 (defsubst gnus-request-update-info (info gnus-command-method)
549 "Request that GNUS-COMMAND-METHOD update INFO."
550 (when (stringp gnus-command-method)
551 (setq gnus-command-method (gnus-server-to-method gnus-command-method)))
552 (when (gnus-check-backend-function
553 'request-update-info (car gnus-command-method))
554 (let ((group (gnus-info-group info)))
555 (and (funcall (gnus-get-function gnus-command-method
556 'request-update-info)
557 (gnus-group-real-name group)
558 info (nth 1 gnus-command-method))
559 ;; If the minimum article number is greater than 1, then all
560 ;; smaller article numbers are known not to exist; we'll
561 ;; artificially add those to the 'read range.
562 (let* ((active (gnus-active group))
565 (let* ((range (if (= min 2) 1 (cons 1 (1- min))))
566 (read (gnus-info-read info))
567 (new-read (gnus-range-add read (list range))))
568 (gnus-info-set-read info new-read)))
571 (defun gnus-request-expire-articles (articles group &optional force)
572 (let* ((gnus-command-method (gnus-find-method-for-group group))
575 (gnus-get-function gnus-command-method 'request-expire-articles)
576 articles (gnus-group-real-name group) (nth 1 gnus-command-method)
578 (when (and gnus-agent
579 (gnus-agent-method-p gnus-command-method))
580 (let ((expired-articles (gnus-sorted-difference articles not-deleted)))
581 (when expired-articles
582 (gnus-agent-expire expired-articles group 'force))))
585 (defun gnus-request-move-article (article group server accept-function
586 &optional last move-is-internal)
587 (let* ((gnus-command-method (gnus-find-method-for-group group))
588 (result (funcall (gnus-get-function gnus-command-method
589 'request-move-article)
590 article (gnus-group-real-name group)
591 (nth 1 gnus-command-method) accept-function last move-is-internal)))
592 (when (and result gnus-agent
593 (gnus-agent-method-p gnus-command-method))
594 (gnus-agent-unfetch-articles group (list article)))
597 (defun gnus-request-accept-article (group &optional gnus-command-method last
599 ;; Make sure there's a newline at the end of the article.
600 (when (stringp gnus-command-method)
601 (setq gnus-command-method (gnus-server-to-method gnus-command-method)))
602 (when (and (not gnus-command-method)
604 (setq gnus-command-method (or (gnus-find-method-for-group group)
605 (gnus-group-name-to-method group))))
606 (goto-char (point-max))
609 (let ((gnus-command-method (or gnus-command-method
610 (gnus-find-method-for-group group)))
613 (gnus-get-function gnus-command-method 'request-accept-article)
614 (if (stringp group) (gnus-group-real-name group) group)
615 (cadr gnus-command-method)
617 (when (and gnus-agent (gnus-agent-method-p gnus-command-method))
618 (gnus-agent-regenerate-group group (list (cdr result))))
621 (defun gnus-request-replace-article (article group buffer &optional no-encode)
622 (let* ((func (car (gnus-group-name-to-method group)))
623 (result (funcall (intern (format "%s-request-replace-article" func))
624 article (gnus-group-real-name group) buffer)))
625 (when (and gnus-agent (gnus-agent-method-p gnus-command-method))
626 (gnus-agent-regenerate-group group (list article)))
629 (defun gnus-request-associate-buffer (group)
630 (let ((gnus-command-method (gnus-find-method-for-group group)))
631 (funcall (gnus-get-function gnus-command-method 'request-associate-buffer)
632 (gnus-group-real-name group))))
634 (defun gnus-request-restore-buffer (article group)
635 "Request a new buffer restored to the state of ARTICLE."
636 (let ((gnus-command-method (gnus-find-method-for-group group)))
637 (funcall (gnus-get-function gnus-command-method 'request-restore-buffer)
638 article (gnus-group-real-name group)
639 (nth 1 gnus-command-method))))
641 (defun gnus-request-create-group (group &optional gnus-command-method args)
642 (when (stringp gnus-command-method)
643 (setq gnus-command-method (gnus-server-to-method gnus-command-method)))
644 (let ((gnus-command-method
645 (or gnus-command-method (gnus-find-method-for-group group))))
646 (funcall (gnus-get-function gnus-command-method 'request-create-group)
647 (gnus-group-real-name group) (nth 1 gnus-command-method) args)))
649 (defun gnus-request-delete-group (group &optional force)
650 (let* ((gnus-command-method (gnus-find-method-for-group group))
652 (funcall (gnus-get-function gnus-command-method 'request-delete-group)
653 (gnus-group-real-name group) force (nth 1 gnus-command-method))))
655 (gnus-cache-delete-group group)
656 (gnus-agent-delete-group group))
659 (defun gnus-request-rename-group (group new-name)
660 (let* ((gnus-command-method (gnus-find-method-for-group group))
662 (funcall (gnus-get-function gnus-command-method 'request-rename-group)
663 (gnus-group-real-name group)
664 (gnus-group-real-name new-name) (nth 1 gnus-command-method))))
666 (gnus-cache-rename-group group new-name)
667 (gnus-agent-rename-group group new-name))
670 (defun gnus-close-backends ()
671 ;; Send a close request to all backends that support such a request.
672 (let ((methods gnus-valid-select-methods)
673 (gnus-inhibit-demon t)
674 func gnus-command-method)
675 (while (setq gnus-command-method (pop methods))
676 (when (fboundp (setq func (intern
677 (concat (car gnus-command-method)
681 (defun gnus-asynchronous-p (gnus-command-method)
682 (let ((func (gnus-get-function gnus-command-method 'asynchronous-p t)))
686 (defun gnus-remove-denial (gnus-command-method)
687 (when (stringp gnus-command-method)
688 (setq gnus-command-method (gnus-server-to-method gnus-command-method)))
689 (let* ((elem (assoc gnus-command-method gnus-opened-servers))
690 (status (cadr elem)))
691 ;; If this hasn't been opened before, we add it to the list.
692 (when (eq status 'denied)
693 ;; Set the status of this server.
694 (setcar (cdr elem) 'closed))))
698 ;;; gnus-int.el ends here