1 ;;; gnus-srvr.el --- virtual server support for Gnus
3 ;; Copyright (C) 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003,
4 ;; 2004, 2005, 2006 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 2, or (at your option)
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; see the file COPYING. If not, write to the
23 ;; Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
24 ;; Boston, MA 02110-1301, USA.
30 (eval-when-compile (require 'cl))
38 (defcustom gnus-server-mode-hook nil
39 "Hook run in `gnus-server-mode' buffers."
43 (defcustom gnus-server-exit-hook nil
44 "Hook run when exiting the server buffer."
48 (defcustom gnus-server-line-format " {%(%h:%w%)} %s%a\n"
49 "Format of server lines.
50 It works along the same lines as a normal formatting string,
51 with some simple extensions.
53 The following specs are understood:
61 General format specifiers can also be used.
62 See Info node `(gnus)Formatting Variables'."
63 :link '(custom-manual "(gnus)Formatting Variables")
64 :group 'gnus-server-visual
67 (defcustom gnus-server-mode-line-format "Gnus: %%b"
68 "The format specification for the server mode line."
69 :group 'gnus-server-visual
72 (defcustom gnus-server-browse-in-group-buffer nil
73 "Whether server browsing should take place in the group buffer.
74 If nil, a faster, but more primitive, buffer is used instead."
76 :group 'gnus-server-visual
79 ;;; Internal variables.
81 (defvar gnus-inserted-opened-servers nil)
83 (defvar gnus-server-line-format-alist
84 `((?h gnus-tmp-how ?s)
86 (?w gnus-tmp-where ?s)
87 (?s gnus-tmp-status ?s)
88 (?a gnus-tmp-agent ?s)))
90 (defvar gnus-server-mode-line-format-alist
91 `((?S gnus-tmp-news-server ?s)
92 (?M gnus-tmp-news-method ?s)
93 (?u gnus-tmp-user-defined ?s)))
95 (defvar gnus-server-line-format-spec nil)
96 (defvar gnus-server-mode-line-format-spec nil)
97 (defvar gnus-server-killed-servers nil)
99 (defvar gnus-server-mode-map)
101 (defvar gnus-server-menu-hook nil
102 "*Hook run after the creation of the server mode menu.")
104 (defun gnus-server-make-menu-bar ()
105 (gnus-turn-off-edit-menu 'server)
106 (unless (boundp 'gnus-server-server-menu)
108 gnus-server-server-menu gnus-server-mode-map ""
110 ["Add..." gnus-server-add-server t]
111 ["Browse" gnus-server-read-server t]
112 ["Scan" gnus-server-scan-server t]
113 ["List" gnus-server-list-servers t]
114 ["Kill" gnus-server-kill-server t]
115 ["Yank" gnus-server-yank-server t]
116 ["Copy" gnus-server-copy-server t]
117 ["Edit" gnus-server-edit-server t]
118 ["Regenerate" gnus-server-regenerate-server t]
119 ["Compact" gnus-server-compact-server t]
120 ["Exit" gnus-server-exit t]))
123 gnus-server-connections-menu gnus-server-mode-map ""
125 ["Open" gnus-server-open-server t]
126 ["Close" gnus-server-close-server t]
127 ["Offline" gnus-server-offline-server t]
128 ["Deny" gnus-server-deny-server t]
130 ["Open All" gnus-server-open-all-servers t]
131 ["Close All" gnus-server-close-all-servers t]
132 ["Reset All" gnus-server-remove-denials t]))
134 (gnus-run-hooks 'gnus-server-menu-hook)))
136 (defvar gnus-server-mode-map nil)
137 (put 'gnus-server-mode 'mode-class 'special)
139 (unless gnus-server-mode-map
140 (setq gnus-server-mode-map (make-sparse-keymap))
141 (suppress-keymap gnus-server-mode-map)
143 (gnus-define-keys gnus-server-mode-map
144 " " gnus-server-read-server-in-server-buffer
145 "\r" gnus-server-read-server
146 gnus-mouse-2 gnus-server-pick-server
148 "l" gnus-server-list-servers
149 "k" gnus-server-kill-server
150 "y" gnus-server-yank-server
151 "c" gnus-server-copy-server
152 "a" gnus-server-add-server
153 "e" gnus-server-edit-server
154 "s" gnus-server-scan-server
156 "O" gnus-server-open-server
157 "\M-o" gnus-server-open-all-servers
158 "C" gnus-server-close-server
159 "\M-c" gnus-server-close-all-servers
160 "D" gnus-server-deny-server
161 "L" gnus-server-offline-server
162 "R" gnus-server-remove-denials
167 "g" gnus-server-regenerate-server
169 "z" gnus-server-compact-server
171 "\C-c\C-i" gnus-info-find-node
172 "\C-c\C-b" gnus-bug))
174 (defface gnus-server-agent
175 '((((class color) (background light)) (:foreground "PaleTurquoise" :bold t))
176 (((class color) (background dark)) (:foreground "PaleTurquoise" :bold t))
178 "Face used for displaying AGENTIZED servers"
179 :group 'gnus-server-visual)
180 ;; backward-compatibility alias
181 (put 'gnus-server-agent-face 'face-alias 'gnus-server-agent)
183 (defface gnus-server-opened
184 '((((class color) (background light)) (:foreground "Green3" :bold t))
185 (((class color) (background dark)) (:foreground "Green1" :bold t))
187 "Face used for displaying OPENED servers"
188 :group 'gnus-server-visual)
189 ;; backward-compatibility alias
190 (put 'gnus-server-opened-face 'face-alias 'gnus-server-opened)
192 (defface gnus-server-closed
193 '((((class color) (background light)) (:foreground "Steel Blue" :italic t))
194 (((class color) (background dark))
195 (:foreground "Light Steel Blue" :italic t))
197 "Face used for displaying CLOSED servers"
198 :group 'gnus-server-visual)
199 ;; backward-compatibility alias
200 (put 'gnus-server-closed-face 'face-alias 'gnus-server-closed)
202 (defface gnus-server-denied
203 '((((class color) (background light)) (:foreground "Red" :bold t))
204 (((class color) (background dark)) (:foreground "Pink" :bold t))
205 (t (:inverse-video t :bold t)))
206 "Face used for displaying DENIED servers"
207 :group 'gnus-server-visual)
208 ;; backward-compatibility alias
209 (put 'gnus-server-denied-face 'face-alias 'gnus-server-denied)
211 (defface gnus-server-offline
212 '((((class color) (background light)) (:foreground "Orange" :bold t))
213 (((class color) (background dark)) (:foreground "Yellow" :bold t))
214 (t (:inverse-video t :bold t)))
215 "Face used for displaying OFFLINE servers"
216 :group 'gnus-server-visual)
217 ;; backward-compatibility alias
218 (put 'gnus-server-offline-face 'face-alias 'gnus-server-offline)
220 (defcustom gnus-server-agent-face 'gnus-server-agent
221 "Face name to use on AGENTIZED servers."
223 :group 'gnus-server-visual
226 (defcustom gnus-server-opened-face 'gnus-server-opened
227 "Face name to use on OPENED servers."
229 :group 'gnus-server-visual
232 (defcustom gnus-server-closed-face 'gnus-server-closed
233 "Face name to use on CLOSED servers."
235 :group 'gnus-server-visual
238 (defcustom gnus-server-denied-face 'gnus-server-denied
239 "Face name to use on DENIED servers."
241 :group 'gnus-server-visual
244 (defcustom gnus-server-offline-face 'gnus-server-offline
245 "Face name to use on OFFLINE servers."
247 :group 'gnus-server-visual
250 (defvar gnus-server-font-lock-keywords
252 '("(\\(agent\\))" 1 gnus-server-agent-face)
253 '("(\\(opened\\))" 1 gnus-server-opened-face)
254 '("(\\(closed\\))" 1 gnus-server-closed-face)
255 '("(\\(offline\\))" 1 gnus-server-offline-face)
256 '("(\\(denied\\))" 1 gnus-server-denied-face)))
258 (defun gnus-server-mode ()
259 "Major mode for listing and editing servers.
261 All normal editing commands are switched off.
262 \\<gnus-server-mode-map>
263 For more in-depth information on this mode, read the manual
264 \(`\\[gnus-info-find-node]').
266 The following commands are available:
268 \\{gnus-server-mode-map}"
270 (when (gnus-visual-p 'server-menu 'menu)
271 (gnus-server-make-menu-bar))
272 (kill-all-local-variables)
273 (gnus-simplify-mode-line)
274 (setq major-mode 'gnus-server-mode)
275 (setq mode-name "Server")
276 (gnus-set-default-directory)
277 (setq mode-line-process nil)
278 (use-local-map gnus-server-mode-map)
279 (buffer-disable-undo)
280 (setq truncate-lines t)
281 (setq buffer-read-only t)
282 (if (featurep 'xemacs)
283 (put 'gnus-server-mode 'font-lock-defaults '(gnus-server-font-lock-keywords t))
284 (set (make-local-variable 'font-lock-defaults)
285 '(gnus-server-font-lock-keywords t)))
286 (gnus-run-mode-hooks 'gnus-server-mode-hook))
288 (defun gnus-server-insert-server-line (gnus-tmp-name method)
289 (let* ((gnus-tmp-how (car method))
290 (gnus-tmp-where (nth 1 method))
291 (elem (assoc method gnus-opened-servers))
294 ((eq (nth 1 elem) 'denied) "(denied)")
295 ((eq (nth 1 elem) 'offline) "(offline)")
298 (if (or (gnus-server-opened method)
299 (eq (nth 1 elem) 'ok))
302 ((error) "(error)")))))
303 (gnus-tmp-agent (if (and gnus-agent
304 (gnus-agent-method-p method))
308 (gnus-add-text-properties
312 (eval gnus-server-line-format-spec))
313 (list 'gnus-server (intern gnus-tmp-name)
314 'gnus-named-server (intern (gnus-method-to-server method))))))
316 (defun gnus-enter-server-buffer ()
317 "Set up the server buffer."
318 (gnus-server-setup-buffer)
319 (gnus-configure-windows 'server)
320 (gnus-server-prepare))
322 (defun gnus-server-setup-buffer ()
323 "Initialize the server buffer."
324 (unless (get-buffer gnus-server-buffer)
326 (set-buffer (gnus-get-buffer-create gnus-server-buffer))
329 (gnus-carpal-setup-buffer 'server)))))
331 (defun gnus-server-prepare ()
332 (gnus-set-format 'server-mode)
333 (gnus-set-format 'server t)
334 (let ((alist gnus-server-alist)
335 (buffer-read-only nil)
338 (setq gnus-inserted-opened-servers nil)
339 ;; First we do the real list of servers.
341 (unless (member (cdar alist) done)
342 (push (cdar alist) done)
343 (setq server (pop alist))
344 (when (and server (car server) (cdr server))
345 (gnus-server-insert-server-line (car server) (cdr server))))
346 (when (member (cdar alist) done)
348 ;; Then we insert the list of servers that have been opened in
350 (dolist (open gnus-opened-servers)
351 (when (and (not (member (car open) done))
352 ;; Just ignore ephemeral servers.
353 (not (member (car open) gnus-ephemeral-servers)))
354 (push (car open) done)
355 (gnus-server-insert-server-line
356 (setq op-ser (format "%s:%s" (caar open) (nth 1 (car open))))
358 (push (list op-ser (car open)) gnus-inserted-opened-servers))))
359 (goto-char (point-min))
360 (gnus-server-position-point))
362 (defun gnus-server-server-name ()
363 (let ((server (get-text-property (point-at-bol) 'gnus-server)))
364 (and server (symbol-name server))))
366 (defun gnus-server-named-server ()
367 "Return a server name that matches one of the names returned by
368 `gnus-method-to-server'."
369 (let ((server (get-text-property (point-at-bol) 'gnus-named-server)))
370 (and server (symbol-name server))))
372 (defalias 'gnus-server-position-point 'gnus-goto-colon)
374 (defconst gnus-server-edit-buffer "*Gnus edit server*")
376 (defun gnus-server-update-server (server)
378 (set-buffer gnus-server-buffer)
379 (let* ((buffer-read-only nil)
380 (entry (assoc server gnus-server-alist))
381 (oentry (assoc (gnus-server-to-method server)
382 gnus-opened-servers)))
385 (concat "(gnus-server-set-info \"" server "\" '"
386 (gnus-prin1-to-string (cdr entry)) ")\n")))
387 (when (or entry oentry)
388 ;; Buffer may be narrowed.
391 (when (gnus-server-goto-server server)
394 (gnus-server-insert-server-line (car entry) (cdr entry))
395 (gnus-server-insert-server-line
396 (format "%s:%s" (caar oentry) (nth 1 (car oentry)))
398 (gnus-server-position-point))))))
400 (defun gnus-server-set-info (server info)
401 ;; Enter a select method into the virtual server alist.
402 (when (and server info)
404 (concat "(gnus-server-set-info \"" server "\" '"
405 (gnus-prin1-to-string info) ")"))
406 (let* ((server (nth 1 info))
407 (entry (assoc server gnus-server-alist))
408 (cached (assoc server gnus-server-method-cache)))
410 (setq gnus-server-method-cache
411 (delq cached gnus-server-method-cache)))
414 ;; Remove the server from `gnus-opened-servers' since
415 ;; it has never been opened with the new `info' yet.
416 (gnus-opened-servers-remove (cdr entry))
417 ;; Don't make a new Lisp object.
418 (setcar (cdr entry) (car info))
419 (setcdr (cdr entry) (cdr info)))
420 (setq gnus-server-alist
421 (nconc gnus-server-alist (list (cons server info))))))))
423 ;;; Interactive server functions.
425 (defun gnus-server-kill-server (server)
426 "Kill the server on the current line."
427 (interactive (list (gnus-server-server-name)))
428 (unless (gnus-server-goto-server server)
429 (if server (error "No such server: %s" server)
430 (error "No server on the current line")))
431 (unless (assoc server gnus-server-alist)
432 (error "Read-only server %s" server))
434 (let ((buffer-read-only nil))
436 (push (assoc server gnus-server-alist) gnus-server-killed-servers)
437 (setq gnus-server-alist (delq (car gnus-server-killed-servers)
439 (let ((groups (gnus-groups-from-server server)))
442 (format "Kill all %s groups from this server? "
444 (dolist (group groups)
445 (setq gnus-newsrc-alist
446 (delq (assoc group gnus-newsrc-alist)
448 (when gnus-group-change-level-function
449 (funcall gnus-group-change-level-function
450 group gnus-level-killed 3)))))
451 (gnus-server-position-point))
453 (defun gnus-server-yank-server ()
454 "Yank the previously killed server."
456 (unless gnus-server-killed-servers
457 (error "No killed servers to be yanked"))
458 (let ((alist gnus-server-alist)
459 (server (gnus-server-server-name))
460 (killed (car gnus-server-killed-servers)))
462 (setq gnus-server-alist (nconc gnus-server-alist (list killed)))
463 (if (string= server (caar gnus-server-alist))
464 (push killed gnus-server-alist)
465 (while (and (cdr alist)
466 (not (string= server (caadr alist))))
467 (setq alist (cdr alist)))
469 (setcdr alist (cons killed (cdr alist)))
470 (setq gnus-server-alist (list killed)))))
471 (gnus-server-update-server (car killed))
472 (setq gnus-server-killed-servers (cdr gnus-server-killed-servers))
473 (gnus-server-position-point)))
475 (defun gnus-server-exit ()
476 "Return to the group buffer."
478 (gnus-run-hooks 'gnus-server-exit-hook)
479 (gnus-kill-buffer (current-buffer))
480 (gnus-configure-windows 'group t))
482 (defun gnus-server-list-servers ()
483 "List all available servers."
485 (let ((cur (gnus-server-server-name)))
486 (gnus-server-prepare)
487 (if cur (gnus-server-goto-server cur)
488 (goto-char (point-max))
490 (gnus-server-position-point)))
492 (defun gnus-server-set-status (method status)
493 "Make METHOD have STATUS."
494 (let ((entry (assoc method gnus-opened-servers)))
496 (setcar (cdr entry) status)
497 (push (list method status) gnus-opened-servers))))
499 (defun gnus-opened-servers-remove (method)
500 "Remove METHOD from the list of opened servers."
501 (setq gnus-opened-servers (delq (assoc method gnus-opened-servers)
502 gnus-opened-servers)))
504 (defun gnus-server-open-server (server)
505 "Force an open of SERVER."
506 (interactive (list (gnus-server-server-name)))
507 (let ((method (gnus-server-to-method server)))
509 (error "No such server: %s" server))
510 (gnus-server-set-status method 'ok)
512 (or (gnus-open-server method)
513 (progn (message "Couldn't open %s" server) nil))
514 (gnus-server-update-server server)
515 (gnus-server-position-point))))
517 (defun gnus-server-open-all-servers ()
520 (dolist (server gnus-inserted-opened-servers)
521 (gnus-server-open-server (car server))))
523 (defun gnus-server-close-server (server)
525 (interactive (list (gnus-server-server-name)))
526 (let ((method (gnus-server-to-method server)))
528 (error "No such server: %s" server))
529 (gnus-server-set-status method 'closed)
531 (gnus-close-server method)
532 (gnus-server-update-server server)
533 (gnus-server-position-point))))
535 (defun gnus-server-offline-server (server)
536 "Set SERVER to offline."
537 (interactive (list (gnus-server-server-name)))
538 (let ((method (gnus-server-to-method server)))
540 (error "No such server: %s" server))
542 (gnus-close-server method)
543 (gnus-server-set-status method 'offline)
544 (gnus-server-update-server server)
545 (gnus-server-position-point))))
547 (defun gnus-server-close-all-servers ()
550 (dolist (server gnus-inserted-opened-servers)
551 (gnus-server-close-server (car server))))
553 (defun gnus-server-deny-server (server)
554 "Make sure SERVER will never be attempted opened."
555 (interactive (list (gnus-server-server-name)))
556 (let ((method (gnus-server-to-method server)))
558 (error "No such server: %s" server))
559 (gnus-server-set-status method 'denied))
560 (gnus-server-update-server server)
561 (gnus-server-position-point)
564 (defun gnus-server-remove-denials ()
565 "Make all denied servers into closed servers."
567 (dolist (server gnus-opened-servers)
568 (when (eq (nth 1 server) 'denied)
569 (setcar (nthcdr 1 server) 'closed)))
570 (gnus-server-list-servers))
572 (defun gnus-server-copy-server (from to)
575 (or (gnus-server-server-name)
576 (error "No server on the current line"))
577 (read-string "Copy to: ")))
579 (error "No server on current line"))
580 (unless (and to (not (string= to "")))
581 (error "No name to copy to"))
582 (when (assoc to gnus-server-alist)
583 (error "%s already exists" to))
584 (unless (gnus-server-to-method from)
585 (error "%s: no such server" from))
586 (let ((to-entry (cons from (gnus-copy-sequence
587 (gnus-server-to-method from)))))
589 (setcar (nthcdr 2 to-entry) to)
590 (push to-entry gnus-server-killed-servers)
591 (gnus-server-yank-server)))
593 (defun gnus-server-add-server (how where)
595 (list (intern (completing-read "Server method: "
596 gnus-valid-select-methods nil t))
597 (read-string "Server name: ")))
598 (when (assq where gnus-server-alist)
599 (error "Server with that name already defined"))
600 (push (list where how where) gnus-server-killed-servers)
601 (gnus-server-yank-server))
603 (defun gnus-server-goto-server (server)
604 "Jump to a server line."
606 (list (completing-read "Goto server: " gnus-server-alist nil t)))
607 (let ((to (text-property-any (point-min) (point-max)
608 'gnus-server (intern server))))
611 (gnus-server-position-point))))
613 (defun gnus-server-edit-server (server)
614 "Edit the server on the current line."
615 (interactive (list (gnus-server-server-name)))
617 (error "No server on current line"))
618 (unless (assoc server gnus-server-alist)
619 (error "This server can't be edited"))
620 (let ((info (cdr (assoc server gnus-server-alist))))
621 (gnus-close-server info)
623 info "Editing the server."
625 (gnus-server-set-info ,server form)
626 (gnus-server-list-servers)
627 (gnus-server-position-point)))))
629 (defun gnus-server-scan-server (server)
630 "Request a scan from the current server."
631 (interactive (list (gnus-server-server-name)))
632 (let ((method (gnus-server-to-method server)))
633 (if (not (gnus-get-function method 'request-scan))
634 (error "Server %s can't scan" (car method))
635 (gnus-message 3 "Scanning %s..." server)
636 (gnus-request-scan nil method)
637 (gnus-message 3 "Scanning %s...done" server))))
639 (defun gnus-server-read-server-in-server-buffer (server)
640 "Browse a server in server buffer."
641 (interactive (list (gnus-server-server-name)))
642 (let (gnus-server-browse-in-group-buffer)
643 (gnus-server-read-server server)))
645 (defun gnus-server-read-server (server)
647 (interactive (list (gnus-server-server-name)))
648 (let ((buf (current-buffer)))
650 (gnus-browse-foreign-server server buf)
653 (gnus-server-update-server (gnus-server-server-name))
654 (gnus-server-position-point)))))
656 (defun gnus-server-pick-server (e)
659 (gnus-server-read-server (gnus-server-server-name)))
663 ;;; Browse Server Mode
666 (defvar gnus-browse-menu-hook nil
667 "*Hook run after the creation of the browse mode menu.")
669 (defvar gnus-browse-mode-hook nil)
670 (defvar gnus-browse-mode-map nil)
671 (put 'gnus-browse-mode 'mode-class 'special)
673 (unless gnus-browse-mode-map
674 (setq gnus-browse-mode-map (make-keymap))
675 (suppress-keymap gnus-browse-mode-map)
679 " " gnus-browse-read-group
680 "=" gnus-browse-select-group
681 "n" gnus-browse-next-group
682 "p" gnus-browse-prev-group
683 "\177" gnus-browse-prev-group
684 [delete] gnus-browse-prev-group
685 "N" gnus-browse-next-group
686 "P" gnus-browse-prev-group
687 "\M-n" gnus-browse-next-group
688 "\M-p" gnus-browse-prev-group
689 "\r" gnus-browse-select-group
690 "u" gnus-browse-unsubscribe-current-group
695 "d" gnus-browse-describe-group
696 "\C-c\C-c" gnus-browse-exit
697 "?" gnus-browse-describe-briefly
699 "\C-c\C-i" gnus-info-find-node
700 "\C-c\C-b" gnus-bug))
702 (defun gnus-browse-make-menu-bar ()
703 (gnus-turn-off-edit-menu 'browse)
704 (unless (boundp 'gnus-browse-menu)
706 gnus-browse-menu gnus-browse-mode-map ""
708 ["Subscribe" gnus-browse-unsubscribe-current-group t]
709 ["Read" gnus-browse-read-group t]
710 ["Select" gnus-browse-select-group t]
711 ["Describe" gnus-browse-describe-group t]
712 ["Next" gnus-browse-next-group t]
713 ["Prev" gnus-browse-prev-group t]
714 ["Exit" gnus-browse-exit t]))
715 (gnus-run-hooks 'gnus-browse-menu-hook)))
717 (defvar gnus-browse-current-method nil)
718 (defvar gnus-browse-return-buffer nil)
720 (defvar gnus-browse-buffer "*Gnus Browse Server*")
722 (defun gnus-browse-foreign-server (server &optional return-buffer)
723 "Browse the server SERVER."
724 (setq gnus-browse-current-method (gnus-server-to-method server))
725 (setq gnus-browse-return-buffer return-buffer)
726 (let* ((method gnus-browse-current-method)
727 (orig-select-method gnus-select-method)
728 (gnus-select-method method)
730 (gnus-message 5 "Connecting to %s..." (nth 1 method))
732 ((not (gnus-check-server method))
734 1 "Unable to contact server %s: %s" (nth 1 method)
735 (gnus-status-message method))
739 (gnus-message 6 "Reading active file...")
740 (gnus-request-list method)
741 (gnus-message 6 "Reading active file...done")))
743 1 "Couldn't request list: %s" (gnus-status-message method))
746 (with-current-buffer nntp-server-buffer
747 (let ((cur (current-buffer)))
748 (goto-char (point-min))
749 (unless (string= gnus-ignored-newsgroups "")
750 (delete-matching-lines gnus-ignored-newsgroups))
751 ;; We treat NNTP as a special case to avoid problems with
752 ;; garbage group names like `"foo' that appear in some badly
753 ;; managed active files. -jh.
754 (if (eq (car method) 'nntp)
761 (skip-chars-forward "^ \t")
763 (let ((last (read cur)))
764 (cons (read cur) last)))
770 (if (eq (char-after) ?\")
772 (let ((p (point)) (name ""))
773 (skip-chars-forward "^ \t\\\\")
774 (setq name (buffer-substring p (point)))
775 (while (eq (char-after) ?\\)
776 (setq p (1+ (point)))
778 (skip-chars-forward "^ \t\\\\")
779 (setq name (concat name (buffer-substring
782 (let ((last (read cur)))
783 (cons (read cur) last)))
786 (setq groups (sort groups
788 (string< (car l1) (car l2)))))
789 (if gnus-server-browse-in-group-buffer
790 (let* ((gnus-select-method orig-select-method)
791 (gnus-group-listed-groups
792 (mapcar (lambda (group)
794 (gnus-group-prefixed-name
795 (car group) method)))
796 (gnus-set-active name (cdr group))
799 (gnus-configure-windows 'group)
800 (funcall gnus-group-prepare-function
801 gnus-level-killed 'ignore 1 'ignore))
802 (gnus-get-buffer-create gnus-browse-buffer)
804 (gnus-carpal-setup-buffer 'browse))
805 (gnus-configure-windows 'browse)
806 (buffer-disable-undo)
807 (let ((buffer-read-only nil))
810 (setq mode-line-buffer-identification
813 "Gnus: %%b {%s:%s}" (car method) (cadr method))))
814 (let ((buffer-read-only nil)
816 (prefix (let ((gnus-select-method orig-select-method))
817 (gnus-group-prefixed-name "" method))))
818 (while (setq group (pop groups))
819 (gnus-add-text-properties
823 (format "%c%7d: %s\n"
825 (if (string= prefix "")
826 (gnus-group-level (setq name (car group)))
828 (concat prefix (setq name (car group)))))))
830 ((<= level gnus-level-subscribed) ? )
831 ((<= level gnus-level-unsubscribed) ?U)
832 ((= level gnus-level-zombie) ?Z)
834 (max 0 (- (1+ (cddr group)) (cadr group)))
835 ;; Don't decode if name is ASCII
836 (if (and (fboundp 'detect-coding-string)
837 (eq (detect-coding-string name t) 'undecided))
839 (decode-coding-string
841 (inline (gnus-group-name-charset method name)))))))
842 (list 'gnus-group name)
844 (switch-to-buffer (current-buffer)))
845 (goto-char (point-min))
846 (gnus-group-position-point)
847 (gnus-message 5 "Connecting to %s...done" (nth 1 method))
850 (defun gnus-browse-mode ()
851 "Major mode for browsing a foreign server.
853 All normal editing commands are switched off.
855 \\<gnus-browse-mode-map>
856 The only things you can do in this buffer is
858 1) `\\[gnus-browse-unsubscribe-current-group]' to subscribe to a group.
859 The group will be inserted into the group buffer upon exit from this
862 2) `\\[gnus-browse-read-group]' to read a group ephemerally.
864 3) `\\[gnus-browse-exit]' to return to the group buffer."
866 (kill-all-local-variables)
867 (when (gnus-visual-p 'browse-menu 'menu)
868 (gnus-browse-make-menu-bar))
869 (gnus-simplify-mode-line)
870 (setq major-mode 'gnus-browse-mode)
871 (setq mode-name "Browse Server")
872 (setq mode-line-process nil)
873 (use-local-map gnus-browse-mode-map)
874 (buffer-disable-undo)
875 (setq truncate-lines t)
876 (gnus-set-default-directory)
877 (setq buffer-read-only t)
878 (gnus-run-mode-hooks 'gnus-browse-mode-hook))
880 (defun gnus-browse-read-group (&optional no-article number)
881 "Enter the group at the current line.
882 If NUMBER, fetch this number of articles."
884 (let ((group (gnus-browse-group-name)))
885 (if (or (not (gnus-get-info group))
886 (gnus-ephemeral-group-p group))
887 (unless (gnus-group-read-ephemeral-group
888 group gnus-browse-current-method nil
889 (cons (current-buffer) 'browse)
891 (error "Couldn't enter %s" group))
892 (unless (gnus-group-read-group nil no-article group)
893 (error "Couldn't enter %s" group)))))
895 (defun gnus-browse-select-group (&optional number)
896 "Select the current group.
897 If NUMBER, fetch this number of articles."
899 (gnus-browse-read-group 'no number))
901 (defun gnus-browse-next-group (n)
902 "Go to the next group."
906 (gnus-group-position-point)))
908 (defun gnus-browse-prev-group (n)
909 "Go to the next group."
911 (gnus-browse-next-group (- n)))
913 (defun gnus-browse-unsubscribe-current-group (arg)
914 "(Un)subscribe to the next ARG groups."
917 (error "No group at current line"))
918 (let ((ward (if (< arg 0) -1 1))
920 (while (and (> arg 0)
922 (gnus-browse-unsubscribe-group)
923 (zerop (gnus-browse-next-group ward)))
925 (gnus-group-position-point)
927 (gnus-message 7 "No more newsgroups"))
930 (defun gnus-browse-group-name ()
933 (let ((name (get-text-property (point) 'gnus-group)))
934 (when (re-search-forward ": \\(.*\\)$" (point-at-eol) t)
935 (concat (gnus-method-to-server-name gnus-browse-current-method) ":"
937 (match-string-no-properties 1)))))))
939 (defun gnus-browse-describe-group (group)
940 "Describe the current group."
941 (interactive (list (gnus-browse-group-name)))
942 (gnus-group-describe-group nil group))
944 (defun gnus-browse-unsubscribe-group ()
945 "Toggle subscription of the current group in the browse buffer."
947 (buffer-read-only nil)
951 ;; If this group it killed, then we want to subscribe it.
952 (unless (eq (char-after) ? )
954 (setq group (gnus-browse-group-name))
955 (when (gnus-server-equal gnus-browse-current-method "native")
956 (setq group (gnus-group-real-name group)))
959 ;; Make sure the group has been properly removed before we
961 (gnus-kill-ephemeral-group group)
962 (gnus-group-change-level
963 (list t group gnus-level-default-subscribed
964 nil nil (if (gnus-server-equal
965 gnus-browse-current-method "native")
967 (gnus-method-simplify
968 gnus-browse-current-method)))
969 gnus-level-default-subscribed (gnus-group-level group)
970 (and (car (nth 1 gnus-newsrc-alist))
971 (gnus-group-entry (car (nth 1 gnus-newsrc-alist))))
975 (gnus-group-change-level
976 group gnus-level-unsubscribed gnus-level-default-subscribed)
981 (defun gnus-browse-exit ()
982 "Quit browsing and return to the group buffer."
984 (when (eq major-mode 'gnus-browse-mode)
985 (gnus-kill-buffer (current-buffer)))
986 ;; Insert the newly subscribed groups in the group buffer.
988 (set-buffer gnus-group-buffer)
989 (gnus-group-list-groups nil))
990 (if gnus-browse-return-buffer
991 (gnus-configure-windows 'server 'force)
992 (gnus-configure-windows 'group 'force)))
994 (defun gnus-browse-describe-briefly ()
995 "Give a one line description of the group mode commands."
998 (substitute-command-keys "\\<gnus-browse-mode-map>\\[gnus-group-next-group]:Forward \\[gnus-group-prev-group]:Backward \\[gnus-browse-exit]:Exit \\[gnus-info-find-node]:Run Info \\[gnus-browse-describe-briefly]:This help")))
1000 (defun gnus-server-regenerate-server ()
1001 "Issue a command to the server to regenerate all its data structures."
1003 (let ((server (gnus-server-server-name)))
1005 (error "No server on the current line"))
1007 (gnus-get-function (gnus-server-to-method server)
1008 'request-regenerate)
1010 (error "This back end doesn't support regeneration")))
1011 (gnus-message 5 "Requesting regeneration of %s..." server)
1012 (unless (gnus-open-server server)
1013 (error "Couldn't open server"))
1014 (if (gnus-request-regenerate server)
1015 (gnus-message 5 "Requesting regeneration of %s...done" server)
1016 (gnus-message 5 "Couldn't regenerate %s" server))))
1020 ;;; Server compaction. -- dvl
1023 ;; #### FIXME: this function currently fails to update the Group buffer's
1025 (defun gnus-server-compact-server ()
1026 "Issue a command to the server to compact all its groups.
1028 Note: currently only implemented in nnml."
1030 (let ((server (gnus-server-server-name)))
1032 (error "No server on the current line"))
1034 (gnus-get-function (gnus-server-to-method server)
1037 (error "This back end doesn't support compaction")))
1039 Requesting compaction of %s... (this may take a long time)"
1041 (unless (gnus-open-server server)
1042 (error "Couldn't open server"))
1043 (if (not (gnus-request-compact server))
1044 (gnus-message 5 "Couldn't compact %s" server)
1045 (gnus-message 5 "Requesting compaction of %s...done" server)
1046 ;; Invalidate the original article buffer which might be out of date.
1047 ;; #### NOTE: Yes, this might be a bit rude, but since compaction
1048 ;; #### will not happen very often, I think this is acceptable.
1049 (let ((original (get-buffer gnus-original-article-buffer)))
1050 (and original (gnus-kill-buffer original))))))
1052 (provide 'gnus-srvr)
1054 ;;; gnus-srvr.el ends here