1 ;;; gnus-int.el --- backend interface functions for Gnus
3 ;; Copyright (C) 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004
4 ;; 2005, 2006, 2007, 2008, 2009, 2010 Free Software Foundation, Inc.
6 ;; Author: Lars Magne Ingebrigtsen <larsi@gnus.org>
9 ;; This file is part of GNU Emacs.
11 ;; GNU Emacs 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 3 of the License, or
14 ;; (at your option) any later version.
16 ;; GNU Emacs 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. If not, see <http://www.gnu.org/licenses/>.
28 (eval-when-compile (require 'cl))
34 (autoload 'gnus-run-hook-with-args "gnus-util")
35 (autoload 'gnus-agent-expire "gnus-agent")
36 (autoload 'gnus-agent-regenerate-group "gnus-agent")
37 (autoload 'gnus-agent-read-servers-validate-native "gnus-agent")
38 (autoload 'gnus-agent-possibly-synchronize-flags-server "gnus-agent")
40 (defcustom gnus-open-server-hook nil
41 "Hook called just before opening connection to the news server."
45 (defcustom gnus-after-set-mark-hook nil
46 "Hook called just after marks are set in a group."
50 (defcustom gnus-before-update-mark-hook nil
51 "Hook called just before marks are updated in a group."
55 (defcustom gnus-server-unopen-status nil
56 "The default status if the server is not able to open.
57 If the server is covered by Gnus agent, the possible values are
58 `denied', set the server denied; `offline', set the server offline;
59 nil, ask user. If the server is not covered by Gnus agent, set the
63 :type '(choice (const :tag "Ask" nil)
64 (const :tag "Deny server" denied)
65 (const :tag "Unplug Agent" offline)))
67 (defvar gnus-internal-registry-spool-current-method nil
68 "The current method, for the registry.")
71 (defun gnus-server-opened (gnus-command-method)
72 "Check whether a connection to GNUS-COMMAND-METHOD has been opened."
73 (unless (eq (gnus-server-status gnus-command-method)
75 (when (stringp gnus-command-method)
76 (setq gnus-command-method (gnus-server-to-method gnus-command-method)))
77 (funcall (inline (gnus-get-function gnus-command-method 'server-opened))
78 (nth 1 gnus-command-method))))
80 (defun gnus-status-message (gnus-command-method)
81 "Return the status message from GNUS-COMMAND-METHOD.
82 If GNUS-COMMAND-METHOD is a string, it is interpreted as a group
83 name. The method this group uses will be queried."
84 (let ((gnus-command-method
85 (if (stringp gnus-command-method)
86 (gnus-find-method-for-group gnus-command-method)
87 gnus-command-method)))
88 (funcall (gnus-get-function gnus-command-method 'status-message)
89 (nth 1 gnus-command-method))))
92 ;;; Server Communication
95 (defun gnus-start-news-server (&optional confirm)
96 "Open a method for getting news.
97 If CONFIRM is non-nil, the user will be asked for an NNTP server."
99 (if gnus-current-select-method
100 ;; Stream is already opened.
104 ;; Read server name with completion.
105 (setq gnus-nntp-server
106 (gnus-completing-read "NNTP server"
107 (cons gnus-nntp-server
108 gnus-secondary-servers)
109 nil gnus-nntp-server)))
111 (when (and gnus-nntp-server
112 (stringp gnus-nntp-server)
113 (not (string= gnus-nntp-server "")))
114 (setq gnus-select-method
115 (cond ((or (string= gnus-nntp-server "")
116 (string= gnus-nntp-server "::"))
117 (list 'nnspool (system-name)))
118 ((string-match "^:" gnus-nntp-server)
119 (list 'nnmh gnus-nntp-server
120 (list 'nnmh-directory
121 (file-name-as-directory
123 (substring gnus-nntp-server 1) "~/")))
124 (list 'nnmh-get-new-mail nil)))
126 (list 'nntp gnus-nntp-server)))))
128 (setq how (car gnus-select-method))
132 (gnus-message 5 "Looking up local news spool..."))
135 (gnus-message 5 "Looking up mh spool..."))
138 (setq gnus-current-select-method gnus-select-method)
139 (gnus-run-hooks 'gnus-open-server-hook)
141 ;; Partially validate agent covered methods now that the
142 ;; gnus-select-method is known.
145 ;; NOTE: This is here for one purpose only. By validating
146 ;; the current select method, it converts the old 5.10.3,
147 ;; and earlier, format to the current format. That enables
148 ;; the agent code within gnus-open-server to function
150 (gnus-agent-read-servers-validate-native gnus-select-method))
153 ;; gnus-open-server-hook might have opened it
154 (gnus-server-opened gnus-select-method)
155 (gnus-open-server gnus-select-method)
159 "%s (%s) open error: '%s'. Continue? "
160 (car gnus-select-method) (cadr gnus-select-method)
161 (gnus-status-message gnus-select-method)))
162 (gnus-error 1 "Couldn't open server on %s"
163 (nth 1 gnus-select-method))))))
165 (defun gnus-check-group (group)
166 "Try to make sure that the server where GROUP exists is alive."
167 (let ((method (gnus-find-method-for-group group)))
168 (or (gnus-server-opened method)
169 (gnus-open-server method))))
171 (defun gnus-check-server (&optional method silent)
172 "Check whether the connection to METHOD is down.
173 If METHOD is nil, use `gnus-select-method'.
174 If it is down, start it up (again)."
175 (let ((method (or method gnus-select-method))
177 ;; Transform virtual server names into select methods.
178 (when (stringp method)
179 (setq method (gnus-server-to-method method)))
180 (if (gnus-server-opened method)
181 ;; The stream is already opened.
185 (gnus-message 5 "Opening %s server%s..." (car method)
186 (if (equal (nth 1 method) "") ""
187 (format " on %s" (nth 1 method)))))
188 (gnus-run-hooks 'gnus-open-server-hook)
190 (setq result (gnus-open-server method))
194 "Opening %s server%s...%s" (car method)
195 (if (equal (nth 1 method) "") ""
196 (format " on %s" (nth 1 method)))
200 (nnheader-get-report-string (car method))))))))))
202 (defun gnus-get-function (method function &optional noerror)
203 "Return a function symbol based on METHOD and FUNCTION."
204 ;; Translate server names into methods.
206 (error "Attempted use of a nil select method"))
207 (when (stringp method)
208 (setq method (gnus-server-to-method method)))
209 ;; Check cache of constructed names.
210 (let* ((method-sym (if gnus-agent
211 (inline (gnus-agent-get-function method))
213 (method-fns (get method-sym 'gnus-method-functions))
214 (func (let ((method-fnlist-elt (assq function method-fns)))
215 (unless method-fnlist-elt
216 (setq method-fnlist-elt
218 (intern (format "%s-%s" method-sym function))))
219 (put method-sym 'gnus-method-functions
220 (cons method-fnlist-elt method-fns)))
221 (cdr method-fnlist-elt))))
222 ;; Maybe complain if there is no function.
223 (unless (fboundp func)
225 (error "Trying to require a method that doesn't exist"))
226 (require (car method))
227 (when (not (fboundp func))
230 (error "No such function: %s" func))))
235 ;;; Interface functions to the backends.
238 (defun gnus-method-denied-p (method)
239 (eq (nth 1 (assoc method gnus-opened-servers))
242 (defvar gnus-backend-trace t)
244 (defun gnus-open-server (gnus-command-method)
245 "Open a connection to GNUS-COMMAND-METHOD."
246 (when (stringp gnus-command-method)
247 (setq gnus-command-method (gnus-server-to-method gnus-command-method)))
248 (when gnus-backend-trace
249 (with-current-buffer (get-buffer-create "*gnus trace*")
250 (buffer-disable-undo)
251 (goto-char (point-max))
252 (insert (format-time-string "%H:%M:%S")
253 (format " %S\n" gnus-command-method))))
254 (let ((elem (assoc gnus-command-method gnus-opened-servers))
255 (server (gnus-method-to-server-name gnus-command-method)))
256 ;; If this method was previously denied, we just return nil.
257 (if (eq (nth 1 elem) 'denied)
259 (gnus-message 1 "Denied server %s" server)
262 (let* ((open-server-function
263 (gnus-get-function gnus-command-method 'open-server))
266 (funcall open-server-function
267 (nth 1 gnus-command-method)
268 (nthcdr 2 gnus-command-method))
270 (gnus-message 1 "Unable to open server %s due to: %s"
271 server (error-message-string err))
274 (gnus-message 1 "Quit trying to open server %s" server)
277 ;; If this hasn't been opened before, we add it to the list.
279 (setq elem (list gnus-command-method nil)
280 gnus-opened-servers (cons elem gnus-opened-servers)))
281 ;; Set the status of this server.
285 (if (eq open-server-function #'nnagent-open-server)
286 ;; The agent's backend has a "special" status
290 (gnus-agent-method-p gnus-command-method))
292 (gnus-server-unopen-status
293 ;; Set the server's status to the unopen
294 ;; status. If that status is offline,
295 ;; recurse to open the agent's backend.
296 (setq open-offline (eq gnus-server-unopen-status 'offline))
297 gnus-server-unopen-status)
298 ((not gnus-batch-mode)
299 (setq open-offline t)
302 ;; This agentized server was still denied
305 ;; This unagentized server must be denied
308 ;; NOTE: I MUST set the server's status to offline before this
309 ;; recursive call as this status will drive the
310 ;; gnus-get-function (called above) to return the agent's
313 ;; Recursively open this offline server to perform the
314 ;; open-server function of the agent's backend.
315 (let ((gnus-server-unopen-status 'denied))
316 ;; Bind gnus-server-unopen-status to avoid recursively
317 ;; prompting with "go offline?". This is only a concern
318 ;; when the agent's backend fails to open the server.
319 (gnus-open-server gnus-command-method))
320 (when (and (eq (cadr elem) 'ok) gnus-agent
321 (gnus-agent-method-p gnus-command-method))
323 (gnus-agent-possibly-synchronize-flags-server
324 gnus-command-method)))
327 (defun gnus-close-server (gnus-command-method)
328 "Close the connection to GNUS-COMMAND-METHOD."
329 (when (stringp gnus-command-method)
330 (setq gnus-command-method (gnus-server-to-method gnus-command-method)))
331 (funcall (gnus-get-function gnus-command-method 'close-server)
332 (nth 1 gnus-command-method)))
334 (defun gnus-request-list (gnus-command-method)
335 "Request the active file from GNUS-COMMAND-METHOD."
336 (when (stringp gnus-command-method)
337 (setq gnus-command-method (gnus-server-to-method gnus-command-method)))
338 (funcall (gnus-get-function gnus-command-method 'request-list)
339 (nth 1 gnus-command-method)))
341 (defun gnus-finish-retrieve-group-infos (gnus-command-method infos data)
342 "Read and update infos from GNUS-COMMAND-METHOD."
343 (when (stringp gnus-command-method)
344 (setq gnus-command-method (gnus-server-to-method gnus-command-method)))
345 (funcall (gnus-get-function gnus-command-method 'finish-retrieve-group-infos)
346 (nth 1 gnus-command-method)
349 (defun gnus-retrieve-group-data-early (gnus-command-method infos)
350 "Start early async retrival of data 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 'retrieve-group-data-early)
354 (nth 1 gnus-command-method)
357 (defun gnus-request-list-newsgroups (gnus-command-method)
358 "Request the newsgroups file from GNUS-COMMAND-METHOD."
359 (when (stringp gnus-command-method)
360 (setq gnus-command-method (gnus-server-to-method gnus-command-method)))
361 (funcall (gnus-get-function gnus-command-method 'request-list-newsgroups)
362 (nth 1 gnus-command-method)))
364 (defun gnus-request-newgroups (date gnus-command-method)
365 "Request all new groups since DATE from GNUS-COMMAND-METHOD."
366 (when (stringp gnus-command-method)
367 (setq gnus-command-method (gnus-server-to-method gnus-command-method)))
368 (let ((func (gnus-get-function gnus-command-method 'request-newgroups t)))
370 (funcall func date (nth 1 gnus-command-method)))))
372 (defun gnus-request-regenerate (gnus-command-method)
373 "Request a data generation from GNUS-COMMAND-METHOD."
374 (when (stringp gnus-command-method)
375 (setq gnus-command-method (gnus-server-to-method gnus-command-method)))
376 (funcall (gnus-get-function gnus-command-method 'request-regenerate)
377 (nth 1 gnus-command-method)))
379 (defun gnus-request-compact-group (group)
380 (let* ((method (gnus-find-method-for-group group))
381 (gnus-command-method method)
383 (funcall (gnus-get-function gnus-command-method
384 'request-compact-group)
385 (gnus-group-real-name group)
386 (nth 1 gnus-command-method) t)))
389 (defun gnus-request-compact (gnus-command-method)
390 "Request groups compaction from GNUS-COMMAND-METHOD."
391 (when (stringp gnus-command-method)
392 (setq gnus-command-method (gnus-server-to-method gnus-command-method)))
393 (funcall (gnus-get-function gnus-command-method 'request-compact)
394 (nth 1 gnus-command-method)))
396 (defun gnus-request-group (group &optional dont-check gnus-command-method info)
397 "Request GROUP. If DONT-CHECK, no information is required."
398 (let ((gnus-command-method
399 (or gnus-command-method (inline (gnus-find-method-for-group group)))))
400 (when (stringp gnus-command-method)
401 (setq gnus-command-method
402 (inline (gnus-server-to-method gnus-command-method))))
403 (funcall (inline (gnus-get-function gnus-command-method 'request-group))
404 (gnus-group-real-name group) (nth 1 gnus-command-method)
408 (defun gnus-list-active-group (group)
409 "Request active information on GROUP."
410 (let ((gnus-command-method (gnus-find-method-for-group group))
411 (func 'list-active-group))
412 (when (gnus-check-backend-function func group)
413 (funcall (gnus-get-function gnus-command-method func)
414 (gnus-group-real-name group) (nth 1 gnus-command-method)))))
416 (defun gnus-request-group-description (group)
417 "Request a description of GROUP."
418 (let ((gnus-command-method (gnus-find-method-for-group group))
419 (func 'request-group-description))
420 (when (gnus-check-backend-function func group)
421 (funcall (gnus-get-function gnus-command-method func)
422 (gnus-group-real-name group) (nth 1 gnus-command-method)))))
424 (defun gnus-request-group-articles (group)
425 "Request a list of existing articles in GROUP."
426 (let ((gnus-command-method (gnus-find-method-for-group group))
427 (func 'request-group-articles))
428 (when (gnus-check-backend-function func group)
429 (funcall (gnus-get-function gnus-command-method func)
430 (gnus-group-real-name group) (nth 1 gnus-command-method)))))
432 (defun gnus-close-group (group)
433 "Request the GROUP be closed."
434 (let ((gnus-command-method (inline (gnus-find-method-for-group group))))
435 (funcall (gnus-get-function gnus-command-method 'close-group)
436 (gnus-group-real-name group) (nth 1 gnus-command-method))))
438 (defun gnus-retrieve-headers (articles group &optional fetch-old)
439 "Request headers for ARTICLES in GROUP.
440 If FETCH-OLD, retrieve all headers (or some subset thereof) in the group."
441 (let ((gnus-command-method (gnus-find-method-for-group group)))
443 ((and gnus-use-cache (numberp (car articles)))
444 (gnus-cache-retrieve-headers articles group fetch-old))
445 ((and gnus-agent (gnus-online gnus-command-method)
446 (gnus-agent-method-p gnus-command-method))
447 (gnus-agent-retrieve-headers articles group fetch-old))
449 (funcall (gnus-get-function gnus-command-method 'retrieve-headers)
450 articles (gnus-group-real-name group)
451 (nth 1 gnus-command-method) fetch-old)))))
453 (defun gnus-retrieve-articles (articles group)
454 "Request ARTICLES in GROUP."
455 (let ((gnus-command-method (gnus-find-method-for-group group)))
456 (funcall (gnus-get-function gnus-command-method 'retrieve-articles)
457 articles (gnus-group-real-name group)
458 (nth 1 gnus-command-method))))
460 (defun gnus-retrieve-groups (groups gnus-command-method)
461 "Request active information on GROUPS from GNUS-COMMAND-METHOD."
462 (when (stringp gnus-command-method)
463 (setq gnus-command-method (gnus-server-to-method gnus-command-method)))
464 (funcall (gnus-get-function gnus-command-method 'retrieve-groups)
465 groups (nth 1 gnus-command-method)))
467 (defun gnus-request-type (group &optional article)
468 "Return the type (`post' or `mail') of GROUP (and ARTICLE)."
469 (let ((gnus-command-method (gnus-find-method-for-group group)))
470 (if (not (gnus-check-backend-function
471 'request-type (car gnus-command-method)))
473 (funcall (gnus-get-function gnus-command-method 'request-type)
474 (gnus-group-real-name group) article))))
476 (defun gnus-request-set-mark (group action)
477 "Set marks on articles in the back end."
478 (let ((gnus-command-method (gnus-find-method-for-group group)))
479 (if (not (gnus-check-backend-function
480 'request-set-mark (car gnus-command-method)))
482 (funcall (gnus-get-function gnus-command-method 'request-set-mark)
483 (gnus-group-real-name group) action
484 (nth 1 gnus-command-method))
485 (gnus-run-hook-with-args gnus-after-set-mark-hook group action))))
487 (defun gnus-request-update-mark (group article mark)
488 "Allow the back end to change the mark the user tries to put on an article."
489 (let ((gnus-command-method (gnus-find-method-for-group group)))
490 (if (not (gnus-check-backend-function
491 'request-update-mark (car gnus-command-method)))
493 (gnus-run-hook-with-args gnus-before-update-mark-hook group article mark)
494 (funcall (gnus-get-function gnus-command-method 'request-update-mark)
495 (gnus-group-real-name group) article mark))))
497 (defun gnus-request-article (article group &optional buffer)
498 "Request the ARTICLE in GROUP.
499 ARTICLE can either be an article number or an article Message-ID.
500 If BUFFER, insert the article in that group."
501 (let ((gnus-command-method (gnus-find-method-for-group group)))
502 (funcall (gnus-get-function gnus-command-method 'request-article)
503 article (gnus-group-real-name group)
504 (nth 1 gnus-command-method) buffer)))
506 (defun gnus-request-thread (header)
507 "Request the headers in the thread containing the article specified by HEADER."
508 (let ((gnus-command-method (gnus-find-method-for-group gnus-newsgroup-name)))
509 (funcall (gnus-get-function gnus-command-method 'request-thread)
512 (defun gnus-warp-to-article ()
513 "Warps from an article in a virtual group to the article in its
514 real group. Does nothing on a real group."
516 (let ((gnus-command-method
517 (gnus-find-method-for-group gnus-newsgroup-name)))
518 (when (gnus-check-backend-function
519 'warp-to-article (car gnus-command-method))
520 (funcall (gnus-get-function gnus-command-method 'warp-to-article)))))
522 (defun gnus-request-head (article group)
523 "Request the head of ARTICLE in GROUP."
524 (let* ((gnus-command-method (gnus-find-method-for-group group))
525 (head (gnus-get-function gnus-command-method 'request-head t))
531 (gnus-cache-request-article article group))
532 (setq res (cons group article)
534 ;; Check the agent cache.
535 ((gnus-agent-request-article article group)
536 (setq res (cons group article)
538 ;; Use `head' function.
540 (setq res (funcall head article (gnus-group-real-name group)
541 (nth 1 gnus-command-method))))
542 ;; Use `article' function.
544 (setq res (gnus-request-article article group)
547 (with-current-buffer nntp-server-buffer
548 (goto-char (point-min))
549 (when (search-forward "\n\n" nil t)
550 (delete-region (1- (point)) (point-max)))
551 (nnheader-fold-continuation-lines)))
554 (defun gnus-request-body (article group)
555 "Request the body of ARTICLE in GROUP."
556 (let* ((gnus-command-method (gnus-find-method-for-group group))
557 (head (gnus-get-function gnus-command-method 'request-body t))
563 (gnus-cache-request-article article group))
564 (setq res (cons group article)
566 ;; Check the agent cache.
567 ((gnus-agent-request-article article group)
568 (setq res (cons group article)
570 ;; Use `head' function.
572 (setq res (funcall head article (gnus-group-real-name group)
573 (nth 1 gnus-command-method))))
574 ;; Use `article' function.
576 (setq res (gnus-request-article article group)
579 (with-current-buffer nntp-server-buffer
580 (goto-char (point-min))
581 (when (search-forward "\n\n" nil t)
582 (delete-region (point-min) (1- (point))))))
585 (defun gnus-request-post (gnus-command-method)
586 "Post the current buffer using GNUS-COMMAND-METHOD."
587 (when (stringp gnus-command-method)
588 (setq gnus-command-method (gnus-server-to-method gnus-command-method)))
589 (funcall (gnus-get-function gnus-command-method 'request-post)
590 (nth 1 gnus-command-method)))
592 (defun gnus-request-expunge-group (group gnus-command-method)
593 "Expunge GROUP, which is removing articles that have been marked as deleted."
594 (when (stringp gnus-command-method)
595 (setq gnus-command-method (gnus-server-to-method gnus-command-method)))
596 (funcall (gnus-get-function gnus-command-method 'request-expunge-group)
597 (gnus-group-real-name group)
598 (nth 1 gnus-command-method)))
600 (defun gnus-request-scan (group gnus-command-method)
601 "Request a SCAN being performed in GROUP from GNUS-COMMAND-METHOD.
602 If GROUP is nil, all groups on GNUS-COMMAND-METHOD are scanned."
603 (let ((gnus-command-method
604 (if group (gnus-find-method-for-group group) gnus-command-method))
605 (gnus-inhibit-demon t)
606 (mail-source-plugged gnus-plugged))
607 (when (or gnus-plugged
608 (not (gnus-agent-method-p gnus-command-method)))
609 (setq gnus-internal-registry-spool-current-method gnus-command-method)
610 (funcall (gnus-get-function gnus-command-method 'request-scan)
611 (and group (gnus-group-real-name group))
612 (nth 1 gnus-command-method)))))
614 (defun gnus-request-update-info (info gnus-command-method)
615 (when (gnus-check-backend-function
616 'request-update-info (car gnus-command-method))
617 (when (stringp gnus-command-method)
618 (setq gnus-command-method (gnus-server-to-method gnus-command-method)))
619 (funcall (gnus-get-function gnus-command-method 'request-update-info)
620 (gnus-group-real-name (gnus-info-group info)) info
621 (nth 1 gnus-command-method))))
623 (defsubst gnus-request-marks (info gnus-command-method)
624 "Request that GNUS-COMMAND-METHOD update INFO."
625 (when (stringp gnus-command-method)
626 (setq gnus-command-method (gnus-server-to-method gnus-command-method)))
627 (when (gnus-check-backend-function
628 'request-marks (car gnus-command-method))
629 (let ((group (gnus-info-group info)))
630 (and (funcall (gnus-get-function gnus-command-method
631 'request-update-info)
632 (gnus-group-real-name group)
633 info (nth 1 gnus-command-method))
634 ;; If the minimum article number is greater than 1, then all
635 ;; smaller article numbers are known not to exist; we'll
636 ;; artificially add those to the 'read range.
637 (let* ((active (gnus-active group))
640 (let* ((range (if (= min 2) 1 (cons 1 (1- min))))
641 (read (gnus-info-read info))
642 (new-read (gnus-range-add read (list range))))
643 (gnus-info-set-read info new-read)))
646 (defun gnus-request-expire-articles (articles group &optional force)
647 (let* ((gnus-command-method (gnus-find-method-for-group group))
648 (gnus-inhibit-demon t)
651 (gnus-get-function gnus-command-method 'request-expire-articles)
652 articles (gnus-group-real-name group) (nth 1 gnus-command-method)
654 (when (and gnus-agent
655 (gnus-agent-method-p gnus-command-method))
656 (let ((expired-articles (gnus-sorted-difference articles not-deleted)))
657 (when expired-articles
658 (gnus-agent-expire expired-articles group 'force))))
661 (defun gnus-request-move-article (article group server accept-function
662 &optional last move-is-internal)
663 (let* ((gnus-command-method (gnus-find-method-for-group group))
664 (result (funcall (gnus-get-function gnus-command-method
665 'request-move-article)
666 article (gnus-group-real-name group)
667 (nth 1 gnus-command-method) accept-function
668 last move-is-internal)))
669 (when (and result gnus-agent
670 (gnus-agent-method-p gnus-command-method))
671 (gnus-agent-unfetch-articles group (list article)))
674 (defun gnus-request-accept-article (group &optional gnus-command-method last
676 ;; Make sure there's a newline at the end of the article.
677 (when (stringp gnus-command-method)
678 (setq gnus-command-method (gnus-server-to-method gnus-command-method)))
679 (when (and (not gnus-command-method)
681 (setq gnus-command-method (or (gnus-find-method-for-group group)
682 (gnus-group-name-to-method group))))
683 (goto-char (point-max))
687 (let ((message-options message-options))
688 (message-options-set-recipient)
690 (message-narrow-to-head)
691 (let ((mail-parse-charset message-default-charset))
692 (mail-encode-encoded-word-buffer)))
693 (message-encode-message-body)))
694 (let ((gnus-command-method (or gnus-command-method
695 (gnus-find-method-for-group group)))
698 (gnus-get-function gnus-command-method 'request-accept-article)
699 (if (stringp group) (gnus-group-real-name group) group)
700 (cadr gnus-command-method)
702 (when (and gnus-agent (gnus-agent-method-p gnus-command-method))
703 (gnus-agent-regenerate-group group (list (cdr result))))
706 (defun gnus-request-replace-article (article group buffer &optional no-encode)
708 (let ((message-options message-options))
709 (message-options-set-recipient)
711 (message-narrow-to-head)
712 (let ((mail-parse-charset message-default-charset))
713 (mail-encode-encoded-word-buffer)))
714 (message-encode-message-body)))
715 (let* ((func (car (gnus-group-name-to-method group)))
716 (result (funcall (intern (format "%s-request-replace-article" func))
717 article (gnus-group-real-name group) buffer)))
718 (when (and gnus-agent (gnus-agent-method-p gnus-command-method))
719 (gnus-agent-regenerate-group group (list article)))
722 (defun gnus-request-associate-buffer (group)
723 (let ((gnus-command-method (gnus-find-method-for-group group)))
724 (funcall (gnus-get-function gnus-command-method 'request-associate-buffer)
725 (gnus-group-real-name group))))
727 (defun gnus-request-restore-buffer (article group)
728 "Request a new buffer restored to the state of ARTICLE."
729 (let ((gnus-command-method (gnus-find-method-for-group group)))
730 (funcall (gnus-get-function gnus-command-method 'request-restore-buffer)
731 article (gnus-group-real-name group)
732 (nth 1 gnus-command-method))))
734 (defun gnus-request-create-group (group &optional gnus-command-method args)
735 (when (stringp gnus-command-method)
736 (setq gnus-command-method (gnus-server-to-method gnus-command-method)))
737 (let ((gnus-command-method
738 (or gnus-command-method (gnus-find-method-for-group group))))
739 (funcall (gnus-get-function gnus-command-method 'request-create-group)
740 (gnus-group-real-name group) (nth 1 gnus-command-method) args)))
742 (defun gnus-request-delete-group (group &optional force)
743 (let* ((gnus-command-method (gnus-find-method-for-group group))
745 (funcall (gnus-get-function gnus-command-method 'request-delete-group)
746 (gnus-group-real-name group) force (nth 1 gnus-command-method))))
748 (gnus-cache-delete-group group)
749 (gnus-agent-delete-group group))
752 (defun gnus-request-rename-group (group new-name)
753 (let* ((gnus-command-method (gnus-find-method-for-group group))
755 (funcall (gnus-get-function gnus-command-method 'request-rename-group)
756 (gnus-group-real-name group)
757 (gnus-group-real-name new-name) (nth 1 gnus-command-method))))
759 (gnus-cache-rename-group group new-name)
760 (gnus-agent-rename-group group new-name))
763 (defun gnus-close-backends ()
764 ;; Send a close request to all backends that support such a request.
765 (let ((methods gnus-valid-select-methods)
766 (gnus-inhibit-demon t)
767 func gnus-command-method)
768 (while (setq gnus-command-method (pop methods))
769 (when (fboundp (setq func (intern
770 (concat (car gnus-command-method)
774 (defun gnus-asynchronous-p (gnus-command-method)
775 (let ((func (gnus-get-function gnus-command-method 'asynchronous-p t)))
779 (defun gnus-remove-denial (gnus-command-method)
780 (when (stringp gnus-command-method)
781 (setq gnus-command-method (gnus-server-to-method gnus-command-method)))
782 (let* ((elem (assoc gnus-command-method gnus-opened-servers))
783 (status (cadr elem)))
784 ;; If this hasn't been opened before, we add it to the list.
785 (when (eq status 'denied)
786 ;; Set the status of this server.
787 (setcar (cdr elem) 'closed))))
791 ;;; gnus-int.el ends here