Commit | Line | Data |
---|---|---|
eec82323 | 1 | ;;; nnfolder.el --- mail folder access for Gnus |
2c902422 | 2 | ;; Copyright (C) 1995, 1996, 1997, 1998, 1999, 2000, 2001 |
16409b0b | 3 | ;; Free Software Foundation, Inc. |
eec82323 LMI |
4 | |
5 | ;; Author: Scott Byer <byer@mv.us.adobe.com> | |
6748645f | 6 | ;; Lars Magne Ingebrigtsen <larsi@gnus.org> |
eec82323 LMI |
7 | ;; Masanobu UMEDA <umerin@flab.flab.fujitsu.junet> |
8 | ;; Keywords: mail | |
9 | ||
10 | ;; This file is part of GNU Emacs. | |
11 | ||
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) | |
15 | ;; any later version. | |
16 | ||
17 | ;; GNU Emacs is distributed in the hope that it will be useful, | |
18 | ;; but WITHOUT ANY WARRANTY; without even the implied warranty of | |
19 | ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
20 | ;; GNU General Public License for more details. | |
21 | ||
22 | ;; You should have received a copy of the GNU General Public License | |
23 | ;; along with GNU Emacs; see the file COPYING. If not, write to the | |
24 | ;; Free Software Foundation, Inc., 59 Temple Place - Suite 330, | |
25 | ;; Boston, MA 02111-1307, USA. | |
26 | ||
27 | ;;; Commentary: | |
28 | ||
29 | ;;; Code: | |
30 | ||
31 | (require 'nnheader) | |
32 | (require 'message) | |
33 | (require 'nnmail) | |
34 | (require 'nnoo) | |
6748645f | 35 | (eval-when-compile (require 'cl)) |
eec82323 | 36 | (require 'gnus-util) |
0d972486 | 37 | (require 'gnus-range) |
eec82323 LMI |
38 | |
39 | (nnoo-declare nnfolder) | |
40 | ||
41 | (defvoo nnfolder-directory (expand-file-name message-directory) | |
42 | "The name of the nnfolder directory.") | |
43 | ||
44 | (defvoo nnfolder-active-file | |
16409b0b | 45 | (nnheader-concat nnfolder-directory "active") |
eec82323 LMI |
46 | "The name of the active file.") |
47 | ||
48 | ;; I renamed this variable to something more in keeping with the general GNU | |
49 | ;; style. -SLB | |
50 | ||
51 | (defvoo nnfolder-ignore-active-file nil | |
dcf4ae73 | 52 | "If non-nil, the active file is ignored. |
16409b0b GM |
53 | This causes nnfolder to do some extra work in order to determine the |
54 | true active ranges of an mbox file. Note that the active file is | |
dcf4ae73 | 55 | still saved, but its values are not used. This costs some extra time |
16409b0b | 56 | when scanning an mbox when opening it.") |
eec82323 LMI |
57 | |
58 | (defvoo nnfolder-distrust-mbox nil | |
16409b0b GM |
59 | "If non-nil, the folder will be distrusted. |
60 | This means that nnfolder will not trust the user with respect to | |
61 | inserting unaccounted for mail in the middle of an mbox file. This | |
62 | can greatly slow down scans, which now must scan the entire file for | |
63 | unmarked messages. When nil, scans occur forward from the last marked | |
64 | message, a huge time saver for large mailboxes.") | |
eec82323 LMI |
65 | |
66 | (defvoo nnfolder-newsgroups-file | |
16409b0b | 67 | (concat (file-name-as-directory nnfolder-directory) "newsgroups") |
eec82323 LMI |
68 | "Mail newsgroups description file.") |
69 | ||
70 | (defvoo nnfolder-get-new-mail t | |
71 | "If non-nil, nnfolder will check the incoming mail file and split the mail.") | |
72 | ||
73 | (defvoo nnfolder-prepare-save-mail-hook nil | |
74 | "Hook run narrowed to an article before saving.") | |
75 | ||
76 | (defvoo nnfolder-save-buffer-hook nil | |
77 | "Hook run before saving the nnfolder mbox buffer.") | |
78 | ||
79 | (defvoo nnfolder-inhibit-expiry nil | |
80 | "If non-nil, inhibit expiry.") | |
81 | ||
82 | \f | |
83 | ||
84 | (defconst nnfolder-version "nnfolder 1.0" | |
85 | "nnfolder version.") | |
86 | ||
87 | (defconst nnfolder-article-marker "X-Gnus-Article-Number: " | |
88 | "String used to demarcate what the article number for a message is.") | |
89 | ||
90 | (defvoo nnfolder-current-group nil) | |
91 | (defvoo nnfolder-current-buffer nil) | |
92 | (defvoo nnfolder-status-string "") | |
93 | (defvoo nnfolder-group-alist nil) | |
94 | (defvoo nnfolder-buffer-alist nil) | |
95 | (defvoo nnfolder-scantime-alist nil) | |
96 | (defvoo nnfolder-active-timestamp nil) | |
16409b0b | 97 | (defvoo nnfolder-active-file-coding-system mm-text-coding-system) |
a1506d29 | 98 | (defvoo nnfolder-active-file-coding-system-for-write |
16409b0b GM |
99 | nnmail-active-file-coding-system) |
100 | (defvoo nnfolder-file-coding-system mm-text-coding-system) | |
101 | (defvoo nnfolder-file-coding-system-for-write nnheader-file-coding-system | |
102 | "Coding system for save nnfolder file. | |
f0529b5b | 103 | If nil, `nnfolder-file-coding-system' is used.") |
eec82323 LMI |
104 | |
105 | \f | |
106 | ||
107 | ;;; Interface functions | |
108 | ||
109 | (nnoo-define-basics nnfolder) | |
110 | ||
111 | (deffoo nnfolder-retrieve-headers (articles &optional group server fetch-old) | |
112 | (save-excursion | |
113 | (set-buffer nntp-server-buffer) | |
114 | (erase-buffer) | |
6748645f | 115 | (let (article start stop) |
eec82323 LMI |
116 | (nnfolder-possibly-change-group group server) |
117 | (when nnfolder-current-buffer | |
118 | (set-buffer nnfolder-current-buffer) | |
119 | (goto-char (point-min)) | |
120 | (if (stringp (car articles)) | |
121 | 'headers | |
6748645f | 122 | (while (setq article (pop articles)) |
eec82323 | 123 | (set-buffer nnfolder-current-buffer) |
6748645f | 124 | (when (nnfolder-goto-article article) |
eec82323 | 125 | (setq start (point)) |
16409b0b GM |
126 | (setq stop (if (search-forward "\n\n" nil t) |
127 | (1- (point)) | |
128 | (point-max))) | |
eec82323 LMI |
129 | (set-buffer nntp-server-buffer) |
130 | (insert (format "221 %d Article retrieved.\n" article)) | |
131 | (insert-buffer-substring nnfolder-current-buffer start stop) | |
132 | (goto-char (point-max)) | |
6748645f | 133 | (insert ".\n"))) |
eec82323 LMI |
134 | |
135 | (set-buffer nntp-server-buffer) | |
136 | (nnheader-fold-continuation-lines) | |
137 | 'headers))))) | |
138 | ||
139 | (deffoo nnfolder-open-server (server &optional defs) | |
140 | (nnoo-change-server 'nnfolder server defs) | |
141 | (nnmail-activate 'nnfolder t) | |
142 | (gnus-make-directory nnfolder-directory) | |
143 | (cond | |
144 | ((not (file-exists-p nnfolder-directory)) | |
145 | (nnfolder-close-server) | |
146 | (nnheader-report 'nnfolder "Couldn't create directory: %s" | |
147 | nnfolder-directory)) | |
148 | ((not (file-directory-p (file-truename nnfolder-directory))) | |
149 | (nnfolder-close-server) | |
150 | (nnheader-report 'nnfolder "Not a directory: %s" nnfolder-directory)) | |
151 | (t | |
152 | (nnmail-activate 'nnfolder) | |
153 | (nnheader-report 'nnfolder "Opened server %s using directory %s" | |
154 | server nnfolder-directory) | |
155 | t))) | |
156 | ||
157 | (deffoo nnfolder-request-close () | |
158 | (let ((alist nnfolder-buffer-alist)) | |
159 | (while alist | |
160 | (nnfolder-close-group (caar alist) nil t) | |
161 | (setq alist (cdr alist)))) | |
162 | (nnoo-close-server 'nnfolder) | |
163 | (setq nnfolder-buffer-alist nil | |
164 | nnfolder-group-alist nil)) | |
165 | ||
166 | (deffoo nnfolder-request-article (article &optional group server buffer) | |
167 | (nnfolder-possibly-change-group group server) | |
168 | (save-excursion | |
169 | (set-buffer nnfolder-current-buffer) | |
170 | (goto-char (point-min)) | |
6748645f | 171 | (when (nnfolder-goto-article article) |
eec82323 | 172 | (let (start stop) |
eec82323 LMI |
173 | (setq start (point)) |
174 | (forward-line 1) | |
175 | (unless (and (nnmail-search-unix-mail-delim) | |
176 | (forward-line -1)) | |
177 | (goto-char (point-max))) | |
178 | (setq stop (point)) | |
179 | (let ((nntp-server-buffer (or buffer nntp-server-buffer))) | |
180 | (set-buffer nntp-server-buffer) | |
181 | (erase-buffer) | |
182 | (insert-buffer-substring nnfolder-current-buffer start stop) | |
183 | (goto-char (point-min)) | |
184 | (while (looking-at "From ") | |
185 | (delete-char 5) | |
186 | (insert "X-From-Line: ") | |
187 | (forward-line 1)) | |
188 | (if (numberp article) | |
189 | (cons nnfolder-current-group article) | |
190 | (goto-char (point-min)) | |
eec82323 | 191 | (cons nnfolder-current-group |
a1506d29 | 192 | (if (search-forward (concat "\n" nnfolder-article-marker) |
16409b0b GM |
193 | nil t) |
194 | (string-to-int | |
195 | (buffer-substring | |
196 | (point) (progn (end-of-line) (point)))) | |
197 | -1)))))))) | |
eec82323 LMI |
198 | |
199 | (deffoo nnfolder-request-group (group &optional server dont-check) | |
200 | (nnfolder-possibly-change-group group server t) | |
201 | (save-excursion | |
202 | (if (not (assoc group nnfolder-group-alist)) | |
203 | (nnheader-report 'nnfolder "No such group: %s" group) | |
204 | (if dont-check | |
205 | (progn | |
206 | (nnheader-report 'nnfolder "Selected group %s" group) | |
207 | t) | |
208 | (let* ((active (assoc group nnfolder-group-alist)) | |
209 | (group (car active)) | |
210 | (range (cadr active))) | |
211 | (cond | |
212 | ((null active) | |
213 | (nnheader-report 'nnfolder "No such group: %s" group)) | |
214 | ((null nnfolder-current-group) | |
215 | (nnheader-report 'nnfolder "Empty group: %s" group)) | |
216 | (t | |
217 | (nnheader-report 'nnfolder "Selected group %s" group) | |
218 | (nnheader-insert "211 %d %d %d %s\n" | |
219 | (1+ (- (cdr range) (car range))) | |
220 | (car range) (cdr range) group)))))))) | |
221 | ||
222 | (deffoo nnfolder-request-scan (&optional group server) | |
223 | (nnfolder-possibly-change-group nil server) | |
224 | (when nnfolder-get-new-mail | |
225 | (nnfolder-possibly-change-group group server) | |
226 | (nnmail-get-new-mail | |
227 | 'nnfolder | |
228 | (lambda () | |
229 | (let ((bufs nnfolder-buffer-alist)) | |
230 | (save-excursion | |
231 | (while bufs | |
232 | (if (not (gnus-buffer-live-p (nth 1 (car bufs)))) | |
233 | (setq nnfolder-buffer-alist | |
234 | (delq (car bufs) nnfolder-buffer-alist)) | |
235 | (set-buffer (nth 1 (car bufs))) | |
236 | (nnfolder-save-buffer) | |
237 | (kill-buffer (current-buffer))) | |
238 | (setq bufs (cdr bufs)))))) | |
239 | nnfolder-directory | |
240 | group))) | |
241 | ||
242 | ;; Don't close the buffer if we're not shutting down the server. This way, | |
243 | ;; we can keep the buffer in the group buffer cache, and not have to grovel | |
244 | ;; over the buffer again unless we add new mail to it or modify it in some | |
245 | ;; way. | |
246 | ||
247 | (deffoo nnfolder-close-group (group &optional server force) | |
248 | ;; Make sure we _had_ the group open. | |
249 | (when (or (assoc group nnfolder-buffer-alist) | |
250 | (equal group nnfolder-current-group)) | |
251 | (let ((inf (assoc group nnfolder-buffer-alist))) | |
252 | (when inf | |
253 | (when (and nnfolder-current-group | |
254 | nnfolder-current-buffer) | |
255 | (push (list nnfolder-current-group nnfolder-current-buffer) | |
256 | nnfolder-buffer-alist)) | |
257 | (setq nnfolder-buffer-alist | |
258 | (delq inf nnfolder-buffer-alist)) | |
259 | (setq nnfolder-current-buffer (cadr inf) | |
260 | nnfolder-current-group (car inf)))) | |
261 | (when (and nnfolder-current-buffer | |
262 | (buffer-name nnfolder-current-buffer)) | |
263 | (save-excursion | |
264 | (set-buffer nnfolder-current-buffer) | |
265 | ;; If the buffer was modified, write the file out now. | |
266 | (nnfolder-save-buffer) | |
267 | ;; If we're shutting the server down, we need to kill the | |
268 | ;; buffer and remove it from the open buffer list. Or, of | |
269 | ;; course, if we're trying to minimize our space impact. | |
270 | (kill-buffer (current-buffer)) | |
271 | (setq nnfolder-buffer-alist (delq (assoc group nnfolder-buffer-alist) | |
272 | nnfolder-buffer-alist))))) | |
273 | (setq nnfolder-current-group nil | |
274 | nnfolder-current-buffer nil) | |
275 | t) | |
276 | ||
277 | (deffoo nnfolder-request-create-group (group &optional server args) | |
278 | (nnfolder-possibly-change-group nil server) | |
279 | (nnmail-activate 'nnfolder) | |
280 | (when group | |
281 | (unless (assoc group nnfolder-group-alist) | |
282 | (push (list group (cons 1 0)) nnfolder-group-alist) | |
16409b0b | 283 | (nnfolder-save-active nnfolder-group-alist nnfolder-active-file) |
a8151ef7 | 284 | (nnfolder-read-folder group))) |
eec82323 LMI |
285 | t) |
286 | ||
287 | (deffoo nnfolder-request-list (&optional server) | |
288 | (nnfolder-possibly-change-group nil server) | |
289 | (save-excursion | |
16409b0b | 290 | (let ((nnmail-file-coding-system nnfolder-active-file-coding-system)) |
58724016 KH |
291 | (nnmail-find-file nnfolder-active-file) |
292 | (setq nnfolder-group-alist (nnmail-get-active))) | |
eec82323 LMI |
293 | t)) |
294 | ||
295 | (deffoo nnfolder-request-newgroups (date &optional server) | |
296 | (nnfolder-possibly-change-group nil server) | |
297 | (nnfolder-request-list server)) | |
298 | ||
299 | (deffoo nnfolder-request-list-newsgroups (&optional server) | |
300 | (nnfolder-possibly-change-group nil server) | |
301 | (save-excursion | |
16409b0b GM |
302 | (let ((nnmail-file-coding-system nnfolder-file-coding-system)) |
303 | (nnmail-find-file nnfolder-newsgroups-file)))) | |
304 | ||
305 | ;; Return a list consisting of all article numbers existing in the | |
306 | ;; current folder. | |
307 | ||
308 | (defun nnfolder-existing-articles () | |
309 | (save-excursion | |
310 | (when nnfolder-current-buffer | |
311 | (set-buffer nnfolder-current-buffer) | |
312 | (goto-char (point-min)) | |
313 | (let ((marker (concat "\n" nnfolder-article-marker)) | |
314 | (number "[0-9]+") | |
315 | numbers) | |
a1506d29 | 316 | |
16409b0b GM |
317 | (while (and (search-forward marker nil t) |
318 | (re-search-forward number nil t)) | |
319 | (let ((newnum (string-to-number (match-string 0)))) | |
320 | (if (nnmail-within-headers-p) | |
321 | (push newnum numbers)))) | |
322 | numbers)))) | |
eec82323 LMI |
323 | |
324 | (deffoo nnfolder-request-expire-articles | |
16409b0b | 325 | (articles newsgroup &optional server force) |
eec82323 LMI |
326 | (nnfolder-possibly-change-group newsgroup server) |
327 | (let* ((is-old t) | |
16409b0b GM |
328 | ;; The articles we have deleted so far. |
329 | (deleted-articles nil) | |
330 | ;; The articles that really exist and will | |
331 | ;; be expired if they are old enough. | |
332 | (maybe-expirable | |
333 | (gnus-intersection articles (nnfolder-existing-articles)))) | |
eec82323 LMI |
334 | (nnmail-activate 'nnfolder) |
335 | ||
336 | (save-excursion | |
337 | (set-buffer nnfolder-current-buffer) | |
16409b0b GM |
338 | ;; Since messages are sorted in arrival order and expired in the |
339 | ;; same order, we can stop as soon as we find a message that is | |
340 | ;; too old. | |
341 | (while (and maybe-expirable is-old) | |
eec82323 | 342 | (goto-char (point-min)) |
16409b0b GM |
343 | (when (and (nnfolder-goto-article (car maybe-expirable)) |
344 | (search-forward (concat "\n" nnfolder-article-marker) | |
345 | nil t)) | |
346 | (forward-sexp) | |
347 | (when (setq is-old | |
348 | (nnmail-expired-article-p | |
349 | newsgroup | |
350 | (buffer-substring | |
351 | (point) (progn (end-of-line) (point))) | |
352 | force nnfolder-inhibit-expiry)) | |
0d972486 SZ |
353 | (unless (eq nnmail-expiry-target 'delete) |
354 | (with-temp-buffer | |
a1506d29 | 355 | (nnfolder-request-article (car maybe-expirable) |
0d972486 SZ |
356 | newsgroup server (current-buffer)) |
357 | (let ((nnml-current-directory nil)) | |
358 | (nnmail-expiry-target-group | |
359 | nnmail-expiry-target newsgroup)))) | |
360 | (nnheader-message 5 "Deleting article %d in %s..." | |
16409b0b GM |
361 | (car maybe-expirable) newsgroup) |
362 | (nnfolder-delete-mail) | |
363 | ;; Must remember which articles were actually deleted | |
364 | (push (car maybe-expirable) deleted-articles))) | |
365 | (setq maybe-expirable (cdr maybe-expirable))) | |
eec82323 LMI |
366 | (unless nnfolder-inhibit-expiry |
367 | (nnheader-message 5 "Deleting articles...done")) | |
368 | (nnfolder-save-buffer) | |
369 | (nnfolder-adjust-min-active newsgroup) | |
16409b0b GM |
370 | (nnfolder-save-active nnfolder-group-alist nnfolder-active-file) |
371 | (gnus-sorted-complement articles (nreverse deleted-articles))))) | |
eec82323 | 372 | |
6748645f LMI |
373 | (deffoo nnfolder-request-move-article (article group server |
374 | accept-form &optional last) | |
375 | (save-excursion | |
376 | (let ((buf (get-buffer-create " *nnfolder move*")) | |
377 | result) | |
378 | (and | |
379 | (nnfolder-request-article article group server) | |
380 | (save-excursion | |
381 | (set-buffer buf) | |
6748645f LMI |
382 | (erase-buffer) |
383 | (insert-buffer-substring nntp-server-buffer) | |
384 | (goto-char (point-min)) | |
385 | (while (re-search-forward | |
386 | (concat "^" nnfolder-article-marker) | |
a1506d29 | 387 | (save-excursion (and (search-forward "\n\n" nil t) (point))) |
16409b0b | 388 | t) |
6748645f LMI |
389 | (delete-region (progn (beginning-of-line) (point)) |
390 | (progn (forward-line 1) (point)))) | |
391 | (setq result (eval accept-form)) | |
392 | (kill-buffer buf) | |
393 | result) | |
394 | (save-excursion | |
395 | (nnfolder-possibly-change-group group server) | |
396 | (set-buffer nnfolder-current-buffer) | |
397 | (goto-char (point-min)) | |
398 | (when (nnfolder-goto-article article) | |
399 | (nnfolder-delete-mail)) | |
400 | (when last | |
401 | (nnfolder-save-buffer) | |
402 | (nnfolder-adjust-min-active group) | |
16409b0b | 403 | (nnfolder-save-active nnfolder-group-alist nnfolder-active-file)))) |
6748645f | 404 | result))) |
eec82323 LMI |
405 | |
406 | (deffoo nnfolder-request-accept-article (group &optional server last) | |
6748645f LMI |
407 | (save-excursion |
408 | (nnfolder-possibly-change-group group server) | |
409 | (nnmail-check-syntax) | |
410 | (let ((buf (current-buffer)) | |
411 | result art-group) | |
412 | (goto-char (point-min)) | |
413 | (when (looking-at "X-From-Line: ") | |
f9936da6 SZ |
414 | (replace-match "From ") |
415 | (while (progn (forward-line) (looking-at "[ \t]")) | |
416 | (delete-char -1))) | |
6748645f LMI |
417 | (and |
418 | (nnfolder-request-list) | |
eec82323 | 419 | (save-excursion |
6748645f LMI |
420 | (set-buffer buf) |
421 | (goto-char (point-min)) | |
16409b0b GM |
422 | (if (search-forward "\n\n" nil t) |
423 | (forward-line -1) | |
424 | (goto-char (point-max))) | |
6748645f LMI |
425 | (while (re-search-backward (concat "^" nnfolder-article-marker) nil t) |
426 | (delete-region (point) (progn (forward-line 1) (point)))) | |
eec82323 | 427 | (when nnmail-cache-accepted-message-ids |
6748645f LMI |
428 | (nnmail-cache-insert (nnmail-fetch-field "message-id"))) |
429 | (setq result (if (stringp group) | |
430 | (list (cons group (nnfolder-active-number group))) | |
431 | (setq art-group | |
432 | (nnmail-article-group 'nnfolder-active-number)))) | |
433 | (if (and (null result) | |
434 | (yes-or-no-p "Moved to `junk' group; delete article? ")) | |
435 | (setq result 'junk) | |
436 | (setq result | |
437 | (car (nnfolder-save-mail result))))) | |
438 | (when last | |
439 | (save-excursion | |
440 | (nnfolder-possibly-change-folder (or (caar art-group) group)) | |
441 | (nnfolder-save-buffer) | |
442 | (when nnmail-cache-accepted-message-ids | |
443 | (nnmail-cache-close))))) | |
16409b0b | 444 | (nnfolder-save-active nnfolder-group-alist nnfolder-active-file) |
6748645f LMI |
445 | (unless result |
446 | (nnheader-report 'nnfolder "Couldn't store article")) | |
447 | result))) | |
eec82323 LMI |
448 | |
449 | (deffoo nnfolder-request-replace-article (article group buffer) | |
450 | (nnfolder-possibly-change-group group) | |
451 | (save-excursion | |
6748645f LMI |
452 | (set-buffer buffer) |
453 | (goto-char (point-min)) | |
454 | (let (xfrom) | |
455 | (while (re-search-forward "^X-From-Line: \\(.*\\)$" nil t) | |
456 | (setq xfrom (match-string 1)) | |
457 | (gnus-delete-line)) | |
458 | (goto-char (point-min)) | |
459 | (if xfrom | |
460 | (insert "From " xfrom "\n") | |
16409b0b | 461 | (unless (looking-at "From ") |
6748645f LMI |
462 | (insert "From nobody " (current-time-string) "\n")))) |
463 | (nnfolder-normalize-buffer) | |
eec82323 LMI |
464 | (set-buffer nnfolder-current-buffer) |
465 | (goto-char (point-min)) | |
6748645f | 466 | (if (not (nnfolder-goto-article article)) |
eec82323 | 467 | nil |
6748645f | 468 | (nnfolder-delete-mail) |
eec82323 LMI |
469 | (insert-buffer-substring buffer) |
470 | (nnfolder-save-buffer) | |
471 | t))) | |
472 | ||
473 | (deffoo nnfolder-request-delete-group (group &optional force server) | |
474 | (nnfolder-close-group group server t) | |
475 | ;; Delete all articles in GROUP. | |
476 | (if (not force) | |
477 | () ; Don't delete the articles. | |
478 | ;; Delete the file that holds the group. | |
479 | (ignore-errors | |
480 | (delete-file (nnfolder-group-pathname group)))) | |
481 | ;; Remove the group from all structures. | |
482 | (setq nnfolder-group-alist | |
483 | (delq (assoc group nnfolder-group-alist) nnfolder-group-alist) | |
484 | nnfolder-current-group nil | |
485 | nnfolder-current-buffer nil) | |
486 | ;; Save the active file. | |
16409b0b | 487 | (nnfolder-save-active nnfolder-group-alist nnfolder-active-file) |
eec82323 LMI |
488 | t) |
489 | ||
490 | (deffoo nnfolder-request-rename-group (group new-name &optional server) | |
491 | (nnfolder-possibly-change-group group server) | |
492 | (save-excursion | |
493 | (set-buffer nnfolder-current-buffer) | |
494 | (and (file-writable-p buffer-file-name) | |
495 | (ignore-errors | |
496 | (rename-file | |
497 | buffer-file-name | |
16409b0b GM |
498 | (let ((new-file (nnfolder-group-pathname new-name))) |
499 | (gnus-make-directory (file-name-directory new-file)) | |
500 | new-file)) | |
eec82323 LMI |
501 | t) |
502 | ;; That went ok, so we change the internal structures. | |
503 | (let ((entry (assoc group nnfolder-group-alist))) | |
504 | (and entry (setcar entry new-name)) | |
505 | (setq nnfolder-current-buffer nil | |
506 | nnfolder-current-group nil) | |
507 | ;; Save the new group alist. | |
16409b0b | 508 | (nnfolder-save-active nnfolder-group-alist nnfolder-active-file) |
eec82323 LMI |
509 | ;; We kill the buffer instead of renaming it and stuff. |
510 | (kill-buffer (current-buffer)) | |
511 | t)))) | |
512 | ||
a8151ef7 LMI |
513 | (defun nnfolder-request-regenerate (server) |
514 | (nnfolder-possibly-change-group nil server) | |
515 | (nnfolder-generate-active-file) | |
516 | t) | |
517 | ||
eec82323 LMI |
518 | \f |
519 | ;;; Internal functions. | |
520 | ||
521 | (defun nnfolder-adjust-min-active (group) | |
522 | ;; Find the lowest active article in this group. | |
523 | (let* ((active (cadr (assoc group nnfolder-group-alist))) | |
524 | (marker (concat "\n" nnfolder-article-marker)) | |
525 | (number "[0-9]+") | |
526 | (activemin (cdr active))) | |
527 | (save-excursion | |
528 | (set-buffer nnfolder-current-buffer) | |
529 | (goto-char (point-min)) | |
530 | (while (and (search-forward marker nil t) | |
531 | (re-search-forward number nil t)) | |
6748645f LMI |
532 | (let ((newnum (string-to-number (match-string 0)))) |
533 | (if (nnmail-within-headers-p) | |
534 | (setq activemin (min activemin newnum))))) | |
eec82323 LMI |
535 | (setcar active activemin)))) |
536 | ||
537 | (defun nnfolder-article-string (article) | |
538 | (if (numberp article) | |
539 | (concat "\n" nnfolder-article-marker (int-to-string article) " ") | |
540 | (concat "\nMessage-ID: " article))) | |
541 | ||
6748645f LMI |
542 | (defun nnfolder-goto-article (article) |
543 | "Place point at the start of the headers of ARTICLE. | |
544 | ARTICLE can be an article number or a Message-ID. | |
545 | Returns t if successful, nil otherwise." | |
546 | (let ((art-string (nnfolder-article-string article)) | |
547 | start found) | |
548 | ;; It is likely that we are at or before the delimiter line. | |
549 | ;; We therefore go to the end of the previous line, and start | |
550 | ;; searching from there. | |
551 | (beginning-of-line) | |
552 | (unless (bobp) | |
553 | (forward-char -1)) | |
554 | (setq start (point)) | |
555 | ;; First search forward. | |
556 | (while (and (setq found (search-forward art-string nil t)) | |
557 | (not (nnmail-within-headers-p)))) | |
558 | ;; If unsuccessful, search backward from where we started, | |
559 | (unless found | |
560 | (goto-char start) | |
561 | (while (and (setq found (search-backward art-string nil t)) | |
562 | (not (nnmail-within-headers-p))))) | |
563 | (when found | |
564 | (nnmail-search-unix-mail-delim-backward)))) | |
565 | ||
566 | (defun nnfolder-delete-mail (&optional leave-delim) | |
567 | "Delete the message that point is in. | |
568 | If optional argument LEAVE-DELIM is t, then mailbox delimiter is not | |
569 | deleted. Point is left where the deleted region was." | |
16409b0b GM |
570 | (save-restriction |
571 | (narrow-to-region | |
572 | (save-excursion | |
573 | ;; In case point is at the beginning of the message already. | |
574 | (forward-line 1) | |
575 | (nnmail-search-unix-mail-delim-backward) | |
576 | (if leave-delim (progn (forward-line 1) (point)) | |
577 | (point))) | |
578 | (progn | |
579 | (forward-line 1) | |
580 | (if (nnmail-search-unix-mail-delim) | |
581 | (point) | |
582 | (point-max)))) | |
583 | (run-hooks 'nnfolder-delete-mail-hook) | |
584 | (delete-region (point-min) (point-max)))) | |
eec82323 LMI |
585 | |
586 | (defun nnfolder-possibly-change-group (group &optional server dont-check) | |
587 | ;; Change servers. | |
588 | (when (and server | |
589 | (not (nnfolder-server-opened server))) | |
590 | (nnfolder-open-server server)) | |
591 | (unless (gnus-buffer-live-p nnfolder-current-buffer) | |
592 | (setq nnfolder-current-buffer nil | |
593 | nnfolder-current-group nil)) | |
594 | ;; Change group. | |
595 | (when (and group | |
596 | (not (equal group nnfolder-current-group))) | |
16409b0b | 597 | (let ((file-name-coding-system nnmail-pathname-coding-system)) |
58724016 KH |
598 | (nnmail-activate 'nnfolder) |
599 | (when (and (not (assoc group nnfolder-group-alist)) | |
600 | (not (file-exists-p | |
601 | (nnfolder-group-pathname group)))) | |
602 | ;; The group doesn't exist, so we create a new entry for it. | |
603 | (push (list group (cons 1 0)) nnfolder-group-alist) | |
16409b0b | 604 | (nnfolder-save-active nnfolder-group-alist nnfolder-active-file)) |
a8151ef7 | 605 | |
58724016 | 606 | (if dont-check |
a8151ef7 LMI |
607 | (setq nnfolder-current-group group |
608 | nnfolder-current-buffer nil) | |
58724016 KH |
609 | (let (inf file) |
610 | ;; If we have to change groups, see if we don't already have the | |
611 | ;; folder in memory. If we do, verify the modtime and destroy | |
612 | ;; the folder if needed so we can rescan it. | |
a8151ef7 LMI |
613 | (setq nnfolder-current-buffer |
614 | (nth 1 (assoc group nnfolder-buffer-alist))) | |
615 | ||
58724016 KH |
616 | ;; If the buffer is not live, make sure it isn't in the alist. If it |
617 | ;; is live, verify that nobody else has touched the file since last | |
618 | ;; time. | |
619 | (when (and nnfolder-current-buffer | |
620 | (not (gnus-buffer-live-p nnfolder-current-buffer))) | |
621 | (setq nnfolder-buffer-alist (delq inf nnfolder-buffer-alist) | |
622 | nnfolder-current-buffer nil)) | |
a8151ef7 | 623 | |
58724016 | 624 | (setq nnfolder-current-group group) |
a8151ef7 | 625 | |
58724016 | 626 | (when (or (not nnfolder-current-buffer) |
6748645f LMI |
627 | (not (verify-visited-file-modtime |
628 | nnfolder-current-buffer))) | |
58724016 KH |
629 | (save-excursion |
630 | (setq file (nnfolder-group-pathname group)) | |
631 | ;; See whether we need to create the new file. | |
632 | (unless (file-exists-p file) | |
633 | (gnus-make-directory (file-name-directory file)) | |
a1506d29 | 634 | (let ((nnmail-file-coding-system |
16409b0b GM |
635 | (or nnfolder-file-coding-system-for-write |
636 | nnfolder-file-coding-system-for-write))) | |
be1ad767 SM |
637 | (nnmail-write-region (point-min) (point-min) |
638 | file t 'nomesg))) | |
58724016 KH |
639 | (when (setq nnfolder-current-buffer (nnfolder-read-folder group)) |
640 | (set-buffer nnfolder-current-buffer) | |
641 | (push (list group nnfolder-current-buffer) | |
642 | nnfolder-buffer-alist))))))))) | |
eec82323 LMI |
643 | |
644 | (defun nnfolder-save-mail (group-art-list) | |
645 | "Called narrowed to an article." | |
646 | (let* (save-list group-art) | |
647 | (goto-char (point-min)) | |
648 | ;; The From line may have been quoted by movemail. | |
16409b0b | 649 | (when (looking-at ">From") |
eec82323 LMI |
650 | (delete-char 1)) |
651 | ;; This might come from somewhere else. | |
16409b0b | 652 | (unless (looking-at "From ") |
eec82323 LMI |
653 | (insert "From nobody " (current-time-string) "\n") |
654 | (goto-char (point-min))) | |
6748645f | 655 | ;; Quote all "From " lines in the article. |
16409b0b | 656 | (forward-line 1) |
eec82323 LMI |
657 | (let (case-fold-search) |
658 | (while (re-search-forward "^From " nil t) | |
659 | (beginning-of-line) | |
660 | (insert "> "))) | |
661 | (setq save-list group-art-list) | |
662 | (nnmail-insert-lines) | |
663 | (nnmail-insert-xref group-art-list) | |
664 | (run-hooks 'nnmail-prepare-save-mail-hook) | |
665 | (run-hooks 'nnfolder-prepare-save-mail-hook) | |
666 | ||
667 | ;; Insert the mail into each of the destination groups. | |
668 | (while (setq group-art (pop group-art-list)) | |
669 | ;; Kill any previous newsgroup markers. | |
670 | (goto-char (point-min)) | |
16409b0b GM |
671 | (if (search-forward "\n\n" nil t) |
672 | (forward-line -1) | |
673 | (goto-char (point-max))) | |
eec82323 LMI |
674 | (while (search-backward (concat "\n" nnfolder-article-marker) nil t) |
675 | (delete-region (1+ (point)) (progn (forward-line 2) (point)))) | |
676 | ||
677 | ;; Insert the new newsgroup marker. | |
678 | (nnfolder-insert-newsgroup-line group-art) | |
679 | ||
680 | (save-excursion | |
681 | (let ((beg (point-min)) | |
682 | (end (point-max)) | |
683 | (obuf (current-buffer))) | |
684 | (nnfolder-possibly-change-folder (car group-art)) | |
685 | (let ((buffer-read-only nil)) | |
6748645f | 686 | (nnfolder-normalize-buffer) |
eec82323 LMI |
687 | (insert-buffer-substring obuf beg end))))) |
688 | ||
689 | ;; Did we save it anywhere? | |
690 | save-list)) | |
691 | ||
6748645f LMI |
692 | (defun nnfolder-normalize-buffer () |
693 | "Make sure there are two newlines at the end of the buffer." | |
694 | (goto-char (point-max)) | |
695 | (skip-chars-backward "\n") | |
696 | (delete-region (point) (point-max)) | |
697 | (insert "\n\n")) | |
698 | ||
eec82323 LMI |
699 | (defun nnfolder-insert-newsgroup-line (group-art) |
700 | (save-excursion | |
701 | (goto-char (point-min)) | |
16409b0b GM |
702 | (unless (search-forward "\n\n" nil t) |
703 | (goto-char (point-max)) | |
704 | (insert "\n")) | |
705 | (forward-char -1) | |
706 | (insert (format (concat nnfolder-article-marker "%d %s\n") | |
707 | (cdr group-art) (current-time-string))))) | |
eec82323 LMI |
708 | |
709 | (defun nnfolder-active-number (group) | |
710 | ;; Find the next article number in GROUP. | |
711 | (let ((active (cadr (assoc group nnfolder-group-alist)))) | |
712 | (if active | |
713 | (setcdr active (1+ (cdr active))) | |
714 | ;; This group is new, so we create a new entry for it. | |
715 | ;; This might be a bit naughty... creating groups on the drop of | |
716 | ;; a hat, but I don't know... | |
717 | (push (list group (setq active (cons 1 1))) | |
718 | nnfolder-group-alist)) | |
719 | (cdr active))) | |
720 | ||
721 | (defun nnfolder-possibly-change-folder (group) | |
722 | (let ((inf (assoc group nnfolder-buffer-alist))) | |
723 | (if (and inf | |
724 | (gnus-buffer-live-p (cadr inf))) | |
725 | (set-buffer (cadr inf)) | |
726 | (when inf | |
727 | (setq nnfolder-buffer-alist (delq inf nnfolder-buffer-alist))) | |
728 | (when nnfolder-group-alist | |
16409b0b | 729 | (nnfolder-save-active nnfolder-group-alist nnfolder-active-file)) |
eec82323 LMI |
730 | (push (list group (nnfolder-read-folder group)) |
731 | nnfolder-buffer-alist)))) | |
732 | ||
733 | ;; This method has a problem if you've accidentally let the active list get | |
734 | ;; out of sync with the files. This could happen, say, if you've | |
735 | ;; accidentally gotten new mail with something other than Gnus (but why | |
736 | ;; would _that_ ever happen? :-). In that case, we will be in the middle of | |
737 | ;; processing the file, ready to add new X-Gnus article number markers, and | |
738 | ;; we'll run across a message with no ID yet - the active list _may_not_ be | |
739 | ;; ready for us yet. | |
740 | ||
741 | ;; To handle this, I'm modifying this routine to maintain the maximum ID seen | |
742 | ;; so far, and when we hit a message with no ID, we will _manually_ scan the | |
743 | ;; rest of the message looking for any more, possibly higher IDs. We'll | |
744 | ;; assume the maximum that we find is the highest active. Note that this | |
745 | ;; shouldn't cost us much extra time at all, but will be a lot less | |
746 | ;; vulnerable to glitches between the mbox and the active file. | |
747 | ||
748 | (defun nnfolder-read-folder (group) | |
749 | (let* ((file (nnfolder-group-pathname group)) | |
16409b0b | 750 | (buffer (set-buffer |
a1506d29 | 751 | (let ((nnheader-file-coding-system |
16409b0b GM |
752 | nnfolder-file-coding-system)) |
753 | (nnheader-find-file-noselect file))))) | |
2c902422 | 754 | (mm-enable-multibyte) ;; Use multibyte buffer for future copying. |
eec82323 LMI |
755 | (if (equal (cadr (assoc group nnfolder-scantime-alist)) |
756 | (nth 5 (file-attributes file))) | |
757 | ;; This looks up-to-date, so we don't do any scanning. | |
6748645f LMI |
758 | (if (file-exists-p file) |
759 | buffer | |
760 | (push (list group buffer) nnfolder-buffer-alist) | |
761 | (set-buffer-modified-p t) | |
16409b0b | 762 | (nnfolder-save-buffer)) |
eec82323 LMI |
763 | ;; Parse the damn thing. |
764 | (save-excursion | |
16409b0b GM |
765 | (goto-char (point-min)) |
766 | ;; Remove any blank lines at the start. | |
767 | (while (eq (following-char) ?\n) | |
768 | (delete-char 1)) | |
eec82323 LMI |
769 | (nnmail-activate 'nnfolder) |
770 | ;; Read in the file. | |
16409b0b | 771 | (let ((delim "^From ") |
eec82323 LMI |
772 | (marker (concat "\n" nnfolder-article-marker)) |
773 | (number "[0-9]+") | |
774 | (active (or (cadr (assoc group nnfolder-group-alist)) | |
775 | (cons 1 0))) | |
776 | (scantime (assoc group nnfolder-scantime-alist)) | |
777 | (minid (lsh -1 -1)) | |
778 | maxid start end newscantime | |
779 | buffer-read-only) | |
16409b0b | 780 | (buffer-disable-undo) |
eec82323 LMI |
781 | (setq maxid (cdr active)) |
782 | (goto-char (point-min)) | |
783 | ||
784 | ;; Anytime the active number is 1 or 0, it is suspect. In that | |
785 | ;; case, search the file manually to find the active number. Or, | |
786 | ;; of course, if we're being paranoid. (This would also be the | |
787 | ;; place to build other lists from the header markers, such as | |
788 | ;; expunge lists, etc., if we ever desired to abandon the active | |
789 | ;; file entirely for mboxes.) | |
790 | (when (or nnfolder-ignore-active-file | |
791 | (< maxid 2)) | |
792 | (while (and (search-forward marker nil t) | |
793 | (re-search-forward number nil t)) | |
794 | (let ((newnum (string-to-number (match-string 0)))) | |
6748645f LMI |
795 | (if (nnmail-within-headers-p) |
796 | (setq maxid (max maxid newnum) | |
797 | minid (min minid newnum))))) | |
eec82323 LMI |
798 | (setcar active (max 1 (min minid maxid))) |
799 | (setcdr active (max maxid (cdr active))) | |
800 | (goto-char (point-min))) | |
801 | ||
802 | ;; As long as we trust that the user will only insert unmarked mail | |
803 | ;; at the end, go to the end and search backwards for the last | |
804 | ;; marker. Find the start of that message, and begin to search for | |
805 | ;; unmarked messages from there. | |
806 | (when (not (or nnfolder-distrust-mbox | |
807 | (< maxid 2))) | |
808 | (goto-char (point-max)) | |
809 | (unless (re-search-backward marker nil t) | |
810 | (goto-char (point-min))) | |
811 | (when (nnmail-search-unix-mail-delim) | |
812 | (goto-char (point-min)))) | |
813 | ||
814 | ;; Keep track of the active number on our own, and insert it back | |
815 | ;; into the active list when we're done. Also, prime the pump to | |
816 | ;; cut down on the number of searches we do. | |
817 | (unless (nnmail-search-unix-mail-delim) | |
818 | (goto-char (point-max))) | |
819 | (setq end (point-marker)) | |
820 | (while (not (= end (point-max))) | |
821 | (setq start (marker-position end)) | |
822 | (goto-char end) | |
823 | ;; There may be more than one "From " line, so we skip past | |
824 | ;; them. | |
825 | (while (looking-at delim) | |
826 | (forward-line 1)) | |
827 | (set-marker end (if (nnmail-search-unix-mail-delim) | |
828 | (point) | |
829 | (point-max))) | |
830 | (goto-char start) | |
831 | (when (not (search-forward marker end t)) | |
832 | (narrow-to-region start end) | |
833 | (nnmail-insert-lines) | |
834 | (nnfolder-insert-newsgroup-line | |
835 | (cons nil (nnfolder-active-number nnfolder-current-group))) | |
836 | (widen))) | |
837 | ||
838 | (set-marker end nil) | |
839 | ;; Make absolutely sure that the active list reflects reality! | |
16409b0b | 840 | (nnfolder-save-active nnfolder-group-alist nnfolder-active-file) |
eec82323 LMI |
841 | ;; Set the scantime for this group. |
842 | (setq newscantime (visited-file-modtime)) | |
843 | (if scantime | |
844 | (setcdr scantime (list newscantime)) | |
845 | (push (list nnfolder-current-group newscantime) | |
846 | nnfolder-scantime-alist)) | |
847 | (current-buffer)))))) | |
848 | ||
849 | ;;;###autoload | |
850 | (defun nnfolder-generate-active-file () | |
16409b0b GM |
851 | "Look for mbox folders in the nnfolder directory and make them into groups. |
852 | This command does not work if you use short group names." | |
eec82323 LMI |
853 | (interactive) |
854 | (nnmail-activate 'nnfolder) | |
855 | (let ((files (directory-files nnfolder-directory)) | |
856 | file) | |
857 | (while (setq file (pop files)) | |
858 | (when (and (not (backup-file-name-p file)) | |
859 | (message-mail-file-mbox-p | |
860 | (nnheader-concat nnfolder-directory file))) | |
861 | (let ((oldgroup (assoc file nnfolder-group-alist))) | |
862 | (if oldgroup | |
863 | (nnheader-message 5 "Refreshing group %s..." file) | |
864 | (nnheader-message 5 "Adding group %s..." file)) | |
03378294 RS |
865 | (if oldgroup |
866 | (setq nnfolder-group-alist | |
867 | (delq oldgroup (copy-sequence nnfolder-group-alist)))) | |
eec82323 LMI |
868 | (push (list file (cons 1 0)) nnfolder-group-alist) |
869 | (nnfolder-possibly-change-folder file) | |
870 | (nnfolder-possibly-change-group file) | |
871 | (nnfolder-close-group file)))) | |
6748645f | 872 | (nnheader-message 5 ""))) |
eec82323 LMI |
873 | |
874 | (defun nnfolder-group-pathname (group) | |
35ef97a5 | 875 | "Make file name for GROUP." |
16409b0b GM |
876 | (setq group |
877 | (mm-encode-coding-string group nnmail-pathname-coding-system)) | |
eec82323 LMI |
878 | (let ((dir (file-name-as-directory (expand-file-name nnfolder-directory)))) |
879 | ;; If this file exists, we use it directly. | |
880 | (if (or nnmail-use-long-file-names | |
881 | (file-exists-p (concat dir group))) | |
882 | (concat dir group) | |
883 | ;; If not, we translate dots into slashes. | |
884 | (concat dir (nnheader-replace-chars-in-string group ?. ?/))))) | |
885 | ||
886 | (defun nnfolder-save-buffer () | |
887 | "Save the buffer." | |
888 | (when (buffer-modified-p) | |
889 | (run-hooks 'nnfolder-save-buffer-hook) | |
a8151ef7 | 890 | (gnus-make-directory (file-name-directory (buffer-file-name))) |
a1506d29 | 891 | (let ((coding-system-for-write |
16409b0b GM |
892 | (or nnfolder-file-coding-system-for-write |
893 | nnfolder-file-coding-system))) | |
894 | (save-buffer)))) | |
895 | ||
896 | (defun nnfolder-save-active (group-alist active-file) | |
897 | (let ((nnmail-active-file-coding-system | |
898 | (or nnfolder-active-file-coding-system-for-write | |
899 | nnfolder-active-file-coding-system))) | |
900 | (nnmail-save-active group-alist active-file))) | |
eec82323 LMI |
901 | |
902 | (provide 'nnfolder) | |
903 | ||
ab5796a9 | 904 | ;;; arch-tag: a040d0f4-4f4e-445f-8972-839575c5f7e6 |
eec82323 | 905 | ;;; nnfolder.el ends here |