Merge from emacs-23
[bpt/emacs.git] / lisp / gnus / nnfolder.el
CommitLineData
eec82323 1;;; nnfolder.el --- mail folder access for Gnus
e84b4b86
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2
3;; Copyright (C) 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004,
5df4f04c 4;; 2005, 2006, 2007, 2008, 2009, 2010, 2011 Free Software Foundation, Inc.
eec82323 5
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6;; Author: Simon Josefsson <simon@josefsson.org> (adding MARKS)
7;; ShengHuo Zhu <zsh@cs.rochester.edu> (adding NOV)
8;; Scott Byer <byer@mv.us.adobe.com>
6748645f 9;; Lars Magne Ingebrigtsen <larsi@gnus.org>
23f87bed 10;; Masanobu UMEDA <umerin@flab.flab.fujitsu.junet>
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11;; Keywords: mail
12
13;; This file is part of GNU Emacs.
14
5e809f55 15;; GNU Emacs is free software: you can redistribute it and/or modify
eec82323 16;; it under the terms of the GNU General Public License as published by
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17;; the Free Software Foundation, either version 3 of the License, or
18;; (at your option) any later version.
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19
20;; GNU Emacs is distributed in the hope that it will be useful,
21;; but WITHOUT ANY WARRANTY; without even the implied warranty of
22;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
23;; GNU General Public License for more details.
24
25;; You should have received a copy of the GNU General Public License
5e809f55 26;; along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>.
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27
28;;; Commentary:
29
30;;; Code:
31
f0b7f5a8 32;; For Emacs <22.2 and XEmacs.
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33(eval-and-compile
34 (unless (fboundp 'declare-function) (defmacro declare-function (&rest r))))
35
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36(require 'nnheader)
37(require 'message)
38(require 'nnmail)
39(require 'nnoo)
6748645f 40(eval-when-compile (require 'cl))
23f87bed 41(require 'gnus)
eec82323 42(require 'gnus-util)
0d972486 43(require 'gnus-range)
eec82323 44
547e921e 45;; FIXME not explicitly used in this file.
c5ce620e 46(autoload 'gnus-article-unpropagatable-p "gnus-sum")
23f87bed 47
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48(nnoo-declare nnfolder)
49
50(defvoo nnfolder-directory (expand-file-name message-directory)
51 "The name of the nnfolder directory.")
52
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53(defvoo nnfolder-nov-directory nil
54 "The name of the nnfolder NOV directory.
55If nil, `nnfolder-directory' is used.")
56
57(defvoo nnfolder-marks-directory nil
58 "The name of the nnfolder MARKS directory.
59If nil, `nnfolder-directory' is used.")
60
eec82323 61(defvoo nnfolder-active-file
16409b0b 62 (nnheader-concat nnfolder-directory "active")
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63 "The name of the active file.")
64
65;; I renamed this variable to something more in keeping with the general GNU
66;; style. -SLB
67
68(defvoo nnfolder-ignore-active-file nil
dcf4ae73 69 "If non-nil, the active file is ignored.
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70This causes nnfolder to do some extra work in order to determine the
71true active ranges of an mbox file. Note that the active file is
dcf4ae73 72still saved, but its values are not used. This costs some extra time
16409b0b 73when scanning an mbox when opening it.")
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74
75(defvoo nnfolder-distrust-mbox nil
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76 "If non-nil, the folder will be distrusted.
77This means that nnfolder will not trust the user with respect to
78inserting unaccounted for mail in the middle of an mbox file. This
79can greatly slow down scans, which now must scan the entire file for
80unmarked messages. When nil, scans occur forward from the last marked
81message, a huge time saver for large mailboxes.")
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82
83(defvoo nnfolder-newsgroups-file
16409b0b 84 (concat (file-name-as-directory nnfolder-directory) "newsgroups")
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85 "Mail newsgroups description file.")
86
87(defvoo nnfolder-get-new-mail t
88 "If non-nil, nnfolder will check the incoming mail file and split the mail.")
89
90(defvoo nnfolder-prepare-save-mail-hook nil
91 "Hook run narrowed to an article before saving.")
92
93(defvoo nnfolder-save-buffer-hook nil
94 "Hook run before saving the nnfolder mbox buffer.")
95
23f87bed 96
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97(defvoo nnfolder-inhibit-expiry nil
98 "If non-nil, inhibit expiry.")
99
100\f
101
23f87bed 102(defconst nnfolder-version "nnfolder 2.0"
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103 "nnfolder version.")
104
105(defconst nnfolder-article-marker "X-Gnus-Article-Number: "
106 "String used to demarcate what the article number for a message is.")
107
108(defvoo nnfolder-current-group nil)
109(defvoo nnfolder-current-buffer nil)
110(defvoo nnfolder-status-string "")
111(defvoo nnfolder-group-alist nil)
112(defvoo nnfolder-buffer-alist nil)
113(defvoo nnfolder-scantime-alist nil)
114(defvoo nnfolder-active-timestamp nil)
16409b0b 115(defvoo nnfolder-active-file-coding-system mm-text-coding-system)
a1506d29 116(defvoo nnfolder-active-file-coding-system-for-write
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117 nnmail-active-file-coding-system)
118(defvoo nnfolder-file-coding-system mm-text-coding-system)
119(defvoo nnfolder-file-coding-system-for-write nnheader-file-coding-system
120 "Coding system for save nnfolder file.
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121if nil, `nnfolder-file-coding-system' is used.") ; FIXME: fill-in the doc-string of this variable
122
123(defvoo nnfolder-nov-is-evil nil
124 "If non-nil, Gnus will never generate and use nov databases for mail groups.
125Using nov databases will speed up header fetching considerably.
126This variable shouldn't be flipped much. If you have, for some reason,
127set this to t, and want to set it to nil again, you should always run
128the `nnfolder-generate-active-file' command. The function will go
129through all nnfolder directories and generate nov databases for them
130all. This may very well take some time.")
131
132(defvoo nnfolder-nov-file-suffix ".nov")
133
134(defvoo nnfolder-nov-buffer-alist nil)
135
136(defvar nnfolder-nov-buffer-file-name nil)
137
138(defvoo nnfolder-marks-is-evil nil
139 "If non-nil, Gnus will never generate and use marks file for mail groups.
140Using marks files makes it possible to backup and restore mail groups
141separately from `.newsrc.eld'. If you have, for some reason, set
142this to t, and want to set it to nil again, you should always remove
143the corresponding marks file (usually base nnfolder file name
144concatenated with `.mrk', but see `nnfolder-marks-file-suffix') for
145the group. Then the marks file will be regenerated properly by Gnus.")
146
147(defvoo nnfolder-marks nil)
148
149(defvoo nnfolder-marks-file-suffix ".mrk")
150
151(defvar nnfolder-marks-modtime (gnus-make-hashtable))
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152
153\f
154
155;;; Interface functions
156
157(nnoo-define-basics nnfolder)
158
159(deffoo nnfolder-retrieve-headers (articles &optional group server fetch-old)
20a673b2 160 (with-current-buffer nntp-server-buffer
eec82323 161 (erase-buffer)
23f87bed 162 (let (article start stop num)
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163 (nnfolder-possibly-change-group group server)
164 (when nnfolder-current-buffer
165 (set-buffer nnfolder-current-buffer)
166 (goto-char (point-min))
167 (if (stringp (car articles))
168 'headers
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169 (if (nnfolder-retrieve-headers-with-nov articles fetch-old)
170 'nov
171 (setq articles (gnus-sorted-intersection
172 ;; Is ARTICLES sorted?
173 (sort articles '<)
174 (nnfolder-existing-articles)))
175 (while (setq article (pop articles))
176 (set-buffer nnfolder-current-buffer)
177 (cond ((nnfolder-goto-article article)
178 (setq start (point))
179 (setq stop (if (search-forward "\n\n" nil t)
180 (1- (point))
181 (point-max)))
182 (set-buffer nntp-server-buffer)
183 (insert (format "221 %d Article retrieved.\n" article))
184 (insert-buffer-substring nnfolder-current-buffer
185 start stop)
186 (goto-char (point-max))
187 (insert ".\n"))
188
189 ;; If we couldn't find this article, skip over ranges
190 ;; of missing articles so we don't search the whole file
191 ;; for each of them.
192 ((numberp article)
193 (setq start (point))
194 (and
195 ;; Check that we are either at BOF or after an
196 ;; article with a lower number. We do this so we
197 ;; won't be confused by out-of-order article numbers,
198 ;; as caused by active file bogosity.
199 (cond
200 ((bobp))
201 ((search-backward (concat "\n" nnfolder-article-marker)
202 nil t)
203 (goto-char (match-end 0))
e9bd5782 204 (setq num (string-to-number
23f87bed 205 (buffer-substring
01c52d31 206 (point) (point-at-eol))))
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207 (goto-char start)
208 (< num article)))
209 ;; Check that we are before an article with a
210 ;; higher number.
211 (search-forward (concat "\n" nnfolder-article-marker)
212 nil t)
213 (progn
e9bd5782 214 (setq num (string-to-number
23f87bed 215 (buffer-substring
01c52d31 216 (point) (point-at-eol))))
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217 (> num article))
218 ;; Discard any article numbers before the one we're
219 ;; now looking at.
220 (while (and articles
221 (< (car articles) num))
222 (setq articles (cdr articles))))
223 (goto-char start))))
224 (set-buffer nntp-server-buffer)
225 (nnheader-fold-continuation-lines)
226 'headers))))))
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227
228(deffoo nnfolder-open-server (server &optional defs)
229 (nnoo-change-server 'nnfolder server defs)
230 (nnmail-activate 'nnfolder t)
231 (gnus-make-directory nnfolder-directory)
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232 (unless (or gnus-nov-is-evil nnfolder-nov-is-evil)
233 (and nnfolder-nov-directory
234 (gnus-make-directory nnfolder-nov-directory)))
235 (unless nnfolder-marks-is-evil
236 (and nnfolder-marks-directory
237 (gnus-make-directory nnfolder-marks-directory)))
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238 (cond
239 ((not (file-exists-p nnfolder-directory))
240 (nnfolder-close-server)
241 (nnheader-report 'nnfolder "Couldn't create directory: %s"
242 nnfolder-directory))
243 ((not (file-directory-p (file-truename nnfolder-directory)))
244 (nnfolder-close-server)
245 (nnheader-report 'nnfolder "Not a directory: %s" nnfolder-directory))
246 (t
247 (nnmail-activate 'nnfolder)
248 (nnheader-report 'nnfolder "Opened server %s using directory %s"
249 server nnfolder-directory)
250 t)))
251
252(deffoo nnfolder-request-close ()
253 (let ((alist nnfolder-buffer-alist))
254 (while alist
255 (nnfolder-close-group (caar alist) nil t)
256 (setq alist (cdr alist))))
257 (nnoo-close-server 'nnfolder)
258 (setq nnfolder-buffer-alist nil
259 nnfolder-group-alist nil))
260
261(deffoo nnfolder-request-article (article &optional group server buffer)
262 (nnfolder-possibly-change-group group server)
20a673b2 263 (with-current-buffer nnfolder-current-buffer
eec82323 264 (goto-char (point-min))
6748645f 265 (when (nnfolder-goto-article article)
eec82323 266 (let (start stop)
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267 (setq start (point))
268 (forward-line 1)
269 (unless (and (nnmail-search-unix-mail-delim)
270 (forward-line -1))
271 (goto-char (point-max)))
272 (setq stop (point))
273 (let ((nntp-server-buffer (or buffer nntp-server-buffer)))
274 (set-buffer nntp-server-buffer)
275 (erase-buffer)
276 (insert-buffer-substring nnfolder-current-buffer start stop)
277 (goto-char (point-min))
278 (while (looking-at "From ")
279 (delete-char 5)
280 (insert "X-From-Line: ")
281 (forward-line 1))
282 (if (numberp article)
283 (cons nnfolder-current-group article)
284 (goto-char (point-min))
eec82323 285 (cons nnfolder-current-group
a1506d29 286 (if (search-forward (concat "\n" nnfolder-article-marker)
16409b0b 287 nil t)
e9bd5782 288 (string-to-number (buffer-substring
01c52d31 289 (point) (point-at-eol)))
16409b0b 290 -1))))))))
eec82323 291
286c4fc2 292(deffoo nnfolder-request-group (group &optional server dont-check info)
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293 (nnfolder-possibly-change-group group server t)
294 (save-excursion
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295 (cond ((not (assoc group nnfolder-group-alist))
296 (nnheader-report 'nnfolder "No such group: %s" group))
297 ((file-directory-p (nnfolder-group-pathname group))
298 (nnheader-report 'nnfolder "%s is a directory"
299 (file-name-as-directory
300 (let ((nnmail-pathname-coding-system nil))
301 (nnfolder-group-pathname group)))))
302 (dont-check
303 (nnheader-report 'nnfolder "Selected group %s" group)
304 t)
305 (t
306 (let* ((active (assoc group nnfolder-group-alist))
307 (group (car active))
308 (range (cadr active)))
309 (cond
310 ((null active)
311 (nnheader-report 'nnfolder "No such group: %s" group))
312 ((null nnfolder-current-group)
313 (nnheader-report 'nnfolder "Empty group: %s" group))
314 (t
315 (nnheader-report 'nnfolder "Selected group %s" group)
316 (nnheader-insert "211 %d %d %d %s\n"
317 (1+ (- (cdr range) (car range)))
318 (car range) (cdr range) group))))))))
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319
320(deffoo nnfolder-request-scan (&optional group server)
321 (nnfolder-possibly-change-group nil server)
322 (when nnfolder-get-new-mail
323 (nnfolder-possibly-change-group group server)
324 (nnmail-get-new-mail
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325 'nnfolder 'nnfolder-save-all-buffers
326 nnfolder-directory group)))
327
328(defun nnfolder-save-all-buffers ()
329 (let ((bufs nnfolder-buffer-alist))
330 (save-excursion
331 (while bufs
332 (if (not (gnus-buffer-live-p (nth 1 (car bufs))))
333 (setq nnfolder-buffer-alist
334 (delq (car bufs) nnfolder-buffer-alist))
335 (set-buffer (nth 1 (car bufs)))
336 (nnfolder-save-buffer)
337 (kill-buffer (current-buffer)))
338 (setq bufs (cdr bufs))))))
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339
340;; Don't close the buffer if we're not shutting down the server. This way,
341;; we can keep the buffer in the group buffer cache, and not have to grovel
342;; over the buffer again unless we add new mail to it or modify it in some
343;; way.
344
345(deffoo nnfolder-close-group (group &optional server force)
346 ;; Make sure we _had_ the group open.
347 (when (or (assoc group nnfolder-buffer-alist)
348 (equal group nnfolder-current-group))
349 (let ((inf (assoc group nnfolder-buffer-alist)))
350 (when inf
351 (when (and nnfolder-current-group
352 nnfolder-current-buffer)
353 (push (list nnfolder-current-group nnfolder-current-buffer)
354 nnfolder-buffer-alist))
355 (setq nnfolder-buffer-alist
356 (delq inf nnfolder-buffer-alist))
357 (setq nnfolder-current-buffer (cadr inf)
358 nnfolder-current-group (car inf))))
359 (when (and nnfolder-current-buffer
360 (buffer-name nnfolder-current-buffer))
20a673b2 361 (with-current-buffer nnfolder-current-buffer
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362 ;; If the buffer was modified, write the file out now.
363 (nnfolder-save-buffer)
364 ;; If we're shutting the server down, we need to kill the
365 ;; buffer and remove it from the open buffer list. Or, of
366 ;; course, if we're trying to minimize our space impact.
367 (kill-buffer (current-buffer))
368 (setq nnfolder-buffer-alist (delq (assoc group nnfolder-buffer-alist)
369 nnfolder-buffer-alist)))))
370 (setq nnfolder-current-group nil
371 nnfolder-current-buffer nil)
372 t)
373
374(deffoo nnfolder-request-create-group (group &optional server args)
375 (nnfolder-possibly-change-group nil server)
376 (nnmail-activate 'nnfolder)
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377 (cond ((zerop (length group))
378 (nnheader-report 'nnfolder "Invalid (empty) group name"))
379 ((file-directory-p (nnfolder-group-pathname group))
380 (nnheader-report 'nnfolder "%s is a directory"
381 (file-name-as-directory
382 (let ((nnmail-pathname-coding-system nil))
383 (nnfolder-group-pathname group)))))
384 ((assoc group nnfolder-group-alist)
385 t)
386 (t
387 (push (list group (cons 1 0)) nnfolder-group-alist)
388 (nnfolder-save-active nnfolder-group-alist nnfolder-active-file)
389 (save-current-buffer
390 (nnfolder-read-folder group))
391 t)))
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392
393(deffoo nnfolder-request-list (&optional server)
394 (nnfolder-possibly-change-group nil server)
395 (save-excursion
16409b0b 396 (let ((nnmail-file-coding-system nnfolder-active-file-coding-system))
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397 (nnmail-find-file nnfolder-active-file)
398 (setq nnfolder-group-alist (nnmail-get-active)))
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399 t))
400
401(deffoo nnfolder-request-newgroups (date &optional server)
402 (nnfolder-possibly-change-group nil server)
403 (nnfolder-request-list server))
404
405(deffoo nnfolder-request-list-newsgroups (&optional server)
406 (nnfolder-possibly-change-group nil server)
407 (save-excursion
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408 (let ((nnmail-file-coding-system nnfolder-file-coding-system))
409 (nnmail-find-file nnfolder-newsgroups-file))))
410
411;; Return a list consisting of all article numbers existing in the
412;; current folder.
413
414(defun nnfolder-existing-articles ()
415 (save-excursion
416 (when nnfolder-current-buffer
417 (set-buffer nnfolder-current-buffer)
418 (goto-char (point-min))
419 (let ((marker (concat "\n" nnfolder-article-marker))
420 (number "[0-9]+")
421 numbers)
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422 (while (and (search-forward marker nil t)
423 (re-search-forward number nil t))
424 (let ((newnum (string-to-number (match-string 0))))
425 (if (nnmail-within-headers-p)
426 (push newnum numbers))))
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427 ;; The article numbers are increasing, so this result is sorted.
428 (nreverse numbers)))))
eec82323 429
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430(autoload 'gnus-request-group "gnus-int")
431(declare-function gnus-request-create-group "gnus-int"
432 (group &optional gnus-command-method args))
433
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434(deffoo nnfolder-request-expire-articles (articles newsgroup
435 &optional server force)
eec82323 436 (nnfolder-possibly-change-group newsgroup server)
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437 (let ((is-old t)
438 ;; The articles we have deleted so far.
439 (deleted-articles nil)
440 ;; The articles that really exist and will
441 ;; be expired if they are old enough.
442 (maybe-expirable
443 (gnus-sorted-intersection articles (nnfolder-existing-articles)))
444 target)
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445 (nnmail-activate 'nnfolder)
446
20a673b2 447 (with-current-buffer nnfolder-current-buffer
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448 ;; Since messages are sorted in arrival order and expired in the
449 ;; same order, we can stop as soon as we find a message that is
450 ;; too old.
451 (while (and maybe-expirable is-old)
eec82323 452 (goto-char (point-min))
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453 (when (and (nnfolder-goto-article (car maybe-expirable))
454 (search-forward (concat "\n" nnfolder-article-marker)
455 nil t))
456 (forward-sexp)
457 (when (setq is-old
458 (nnmail-expired-article-p
459 newsgroup
460 (buffer-substring
461 (point) (progn (end-of-line) (point)))
462 force nnfolder-inhibit-expiry))
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463 (setq target nnmail-expiry-target)
464 (unless (eq target 'delete)
0d972486 465 (with-temp-buffer
a1506d29 466 (nnfolder-request-article (car maybe-expirable)
0d972486 467 newsgroup server (current-buffer))
23f87bed 468 (let ((nnfolder-current-directory nil))
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469 (when (functionp target)
470 (setq target (funcall target newsgroup)))
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471 (when (and target (not (eq target 'delete)))
472 (if (or (gnus-request-group target)
473 (gnus-request-create-group target))
474 (nnmail-expiry-target-group target newsgroup)
475 (setq target nil)))))
23f87bed 476 (nnfolder-possibly-change-group newsgroup server))
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477 (when target
478 (nnheader-message 5 "Deleting article %d in %s..."
479 (car maybe-expirable) newsgroup)
480 (nnfolder-delete-mail)
481 (unless (or gnus-nov-is-evil nnfolder-nov-is-evil)
482 (nnfolder-nov-delete-article newsgroup (car maybe-expirable)))
483 ;; Must remember which articles were actually deleted
484 (push (car maybe-expirable) deleted-articles))))
16409b0b 485 (setq maybe-expirable (cdr maybe-expirable)))
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486 (unless nnfolder-inhibit-expiry
487 (nnheader-message 5 "Deleting articles...done"))
488 (nnfolder-save-buffer)
489 (nnfolder-adjust-min-active newsgroup)
16409b0b 490 (nnfolder-save-active nnfolder-group-alist nnfolder-active-file)
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491 (gnus-sorted-difference articles (nreverse deleted-articles)))
492 (nnfolder-save-all-buffers)))
eec82323 493
c9fc72fa 494(deffoo nnfolder-request-move-article (article group server accept-form
01c52d31 495 &optional last move-is-internal)
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496 (save-excursion
497 (let ((buf (get-buffer-create " *nnfolder move*"))
498 result)
499 (and
500 (nnfolder-request-article article group server)
20a673b2 501 (with-current-buffer buf
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502 (erase-buffer)
503 (insert-buffer-substring nntp-server-buffer)
504 (goto-char (point-min))
505 (while (re-search-forward
506 (concat "^" nnfolder-article-marker)
a1506d29 507 (save-excursion (and (search-forward "\n\n" nil t) (point)))
16409b0b 508 t)
23f87bed 509 (gnus-delete-line))
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510 (setq result (eval accept-form))
511 (kill-buffer buf)
512 result)
513 (save-excursion
514 (nnfolder-possibly-change-group group server)
515 (set-buffer nnfolder-current-buffer)
516 (goto-char (point-min))
517 (when (nnfolder-goto-article article)
518 (nnfolder-delete-mail))
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519 (unless (or gnus-nov-is-evil nnfolder-nov-is-evil)
520 (nnfolder-nov-delete-article group article))
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521 (when last
522 (nnfolder-save-buffer)
523 (nnfolder-adjust-min-active group)
16409b0b 524 (nnfolder-save-active nnfolder-group-alist nnfolder-active-file))))
6748645f 525 result)))
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526
527(deffoo nnfolder-request-accept-article (group &optional server last)
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528 (save-excursion
529 (nnfolder-possibly-change-group group server)
530 (nnmail-check-syntax)
531 (let ((buf (current-buffer))
532 result art-group)
533 (goto-char (point-min))
534 (when (looking-at "X-From-Line: ")
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535 (replace-match "From ")
536 (while (progn (forward-line) (looking-at "[ \t]"))
537 (delete-char -1)))
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538 (with-temp-buffer
539 (let ((nnmail-file-coding-system nnfolder-active-file-coding-system)
540 (nntp-server-buffer (current-buffer)))
541 (nnmail-find-file nnfolder-active-file)
542 (setq nnfolder-group-alist (nnmail-parse-active))))
543 (save-excursion
544 (goto-char (point-min))
545 (if (search-forward "\n\n" nil t)
546 (forward-line -1)
547 (goto-char (point-max)))
548 (while (re-search-backward (concat "^" nnfolder-article-marker) nil t)
549 (delete-region (point) (progn (forward-line 1) (point))))
550 (when nnmail-cache-accepted-message-ids
c9fc72fa 551 (nnmail-cache-insert (nnmail-fetch-field "message-id")
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552 group
553 (nnmail-fetch-field "subject")
554 (nnmail-fetch-field "from")))
555 (setq result (if (stringp group)
556 (list (cons group (nnfolder-active-number group)))
557 (setq art-group
558 (nnmail-article-group 'nnfolder-active-number))))
559 (if (and (null result)
560 (yes-or-no-p "Moved to `junk' group; delete article? "))
561 (setq result 'junk)
562 (setq result
563 (car (nnfolder-save-mail result)))))
564 (when last
565 (save-excursion
566 (nnfolder-possibly-change-folder (or (caar art-group) group))
567 (nnfolder-save-buffer)
568 (when nnmail-cache-accepted-message-ids
569 (nnmail-cache-close))))
16409b0b 570 (nnfolder-save-active nnfolder-group-alist nnfolder-active-file)
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571 (unless result
572 (nnheader-report 'nnfolder "Couldn't store article"))
573 result)))
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574
575(deffoo nnfolder-request-replace-article (article group buffer)
576 (nnfolder-possibly-change-group group)
20a673b2 577 (with-current-buffer buffer
6748645f 578 (goto-char (point-min))
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579 (if (not (looking-at "X-From-Line: "))
580 (insert "From nobody " (current-time-string) "\n")
581 (replace-match "From ")
582 (forward-line 1)
583 (while (looking-at "[ \t]")
584 (delete-char -1)
585 (forward-line 1)))
6748645f 586 (nnfolder-normalize-buffer)
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587 (set-buffer nnfolder-current-buffer)
588 (goto-char (point-min))
6748645f 589 (if (not (nnfolder-goto-article article))
eec82323 590 nil
6748645f 591 (nnfolder-delete-mail)
eec82323 592 (insert-buffer-substring buffer)
23f87bed 593 (unless (or gnus-nov-is-evil nnfolder-nov-is-evil)
20a673b2 594 (with-current-buffer buffer
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595 (let ((headers (nnfolder-parse-head article
596 (point-min) (point-max))))
597 (with-current-buffer (nnfolder-open-nov group)
598 (if (nnheader-find-nov-line article)
599 (delete-region (point) (progn (forward-line 1) (point))))
600 (nnheader-insert-nov headers)))))
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601 (nnfolder-save-buffer)
602 t)))
603
604(deffoo nnfolder-request-delete-group (group &optional force server)
605 (nnfolder-close-group group server t)
606 ;; Delete all articles in GROUP.
607 (if (not force)
608 () ; Don't delete the articles.
609 ;; Delete the file that holds the group.
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610 (let ((data (nnfolder-group-pathname group))
611 (nov (nnfolder-group-nov-pathname group))
612 (mrk (nnfolder-group-marks-pathname group)))
613 (ignore-errors (delete-file data))
614 (ignore-errors (delete-file nov))
615 (ignore-errors (delete-file mrk))))
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616 ;; Remove the group from all structures.
617 (setq nnfolder-group-alist
618 (delq (assoc group nnfolder-group-alist) nnfolder-group-alist)
619 nnfolder-current-group nil
620 nnfolder-current-buffer nil)
621 ;; Save the active file.
16409b0b 622 (nnfolder-save-active nnfolder-group-alist nnfolder-active-file)
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623 t)
624
625(deffoo nnfolder-request-rename-group (group new-name &optional server)
626 (nnfolder-possibly-change-group group server)
20a673b2 627 (with-current-buffer nnfolder-current-buffer
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628 (and (file-writable-p buffer-file-name)
629 (ignore-errors
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630 (let ((new-file (nnfolder-group-pathname new-name)))
631 (gnus-make-directory (file-name-directory new-file))
632 (rename-file buffer-file-name new-file)
633 (when (file-exists-p (nnfolder-group-nov-pathname group))
634 (setq new-file (nnfolder-group-nov-pathname new-name))
635 (gnus-make-directory (file-name-directory new-file))
636 (rename-file (nnfolder-group-nov-pathname group) new-file))
637 (when (file-exists-p (nnfolder-group-marks-pathname group))
638 (setq new-file (nnfolder-group-marks-pathname new-name))
639 (gnus-make-directory (file-name-directory new-file))
640 (rename-file (nnfolder-group-marks-pathname group) new-file)))
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641 t)
642 ;; That went ok, so we change the internal structures.
643 (let ((entry (assoc group nnfolder-group-alist)))
644 (and entry (setcar entry new-name))
645 (setq nnfolder-current-buffer nil
646 nnfolder-current-group nil)
647 ;; Save the new group alist.
16409b0b 648 (nnfolder-save-active nnfolder-group-alist nnfolder-active-file)
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649 ;; We kill the buffer instead of renaming it and stuff.
650 (kill-buffer (current-buffer))
651 t))))
652
23f87bed 653(deffoo nnfolder-request-regenerate (server)
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654 (nnfolder-possibly-change-group nil server)
655 (nnfolder-generate-active-file)
656 t)
657
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658\f
659;;; Internal functions.
660
661(defun nnfolder-adjust-min-active (group)
662 ;; Find the lowest active article in this group.
663 (let* ((active (cadr (assoc group nnfolder-group-alist)))
664 (marker (concat "\n" nnfolder-article-marker))
665 (number "[0-9]+")
666 (activemin (cdr active)))
20a673b2 667 (with-current-buffer nnfolder-current-buffer
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668 (goto-char (point-min))
669 (while (and (search-forward marker nil t)
670 (re-search-forward number nil t))
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671 (let ((newnum (string-to-number (match-string 0))))
672 (if (nnmail-within-headers-p)
673 (setq activemin (min activemin newnum)))))
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674 (setcar active activemin))))
675
676(defun nnfolder-article-string (article)
677 (if (numberp article)
678 (concat "\n" nnfolder-article-marker (int-to-string article) " ")
679 (concat "\nMessage-ID: " article)))
680
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681(defun nnfolder-goto-article (article)
682 "Place point at the start of the headers of ARTICLE.
683ARTICLE can be an article number or a Message-ID.
684Returns t if successful, nil otherwise."
685 (let ((art-string (nnfolder-article-string article))
686 start found)
687 ;; It is likely that we are at or before the delimiter line.
688 ;; We therefore go to the end of the previous line, and start
689 ;; searching from there.
690 (beginning-of-line)
691 (unless (bobp)
692 (forward-char -1))
693 (setq start (point))
694 ;; First search forward.
695 (while (and (setq found (search-forward art-string nil t))
696 (not (nnmail-within-headers-p))))
697 ;; If unsuccessful, search backward from where we started,
698 (unless found
699 (goto-char start)
700 (while (and (setq found (search-backward art-string nil t))
701 (not (nnmail-within-headers-p)))))
702 (when found
703 (nnmail-search-unix-mail-delim-backward))))
704
705(defun nnfolder-delete-mail (&optional leave-delim)
706 "Delete the message that point is in.
707If optional argument LEAVE-DELIM is t, then mailbox delimiter is not
708deleted. Point is left where the deleted region was."
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709 (save-restriction
710 (narrow-to-region
711 (save-excursion
712 ;; In case point is at the beginning of the message already.
713 (forward-line 1)
714 (nnmail-search-unix-mail-delim-backward)
715 (if leave-delim (progn (forward-line 1) (point))
716 (point)))
717 (progn
718 (forward-line 1)
719 (if (nnmail-search-unix-mail-delim)
720 (point)
721 (point-max))))
722 (run-hooks 'nnfolder-delete-mail-hook)
723 (delete-region (point-min) (point-max))))
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724
725(defun nnfolder-possibly-change-group (group &optional server dont-check)
726 ;; Change servers.
727 (when (and server
728 (not (nnfolder-server-opened server)))
729 (nnfolder-open-server server))
730 (unless (gnus-buffer-live-p nnfolder-current-buffer)
731 (setq nnfolder-current-buffer nil
732 nnfolder-current-group nil))
733 ;; Change group.
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734 (let ((file-name-coding-system nnmail-pathname-coding-system))
735 (when (and group
736 (not (equal group nnfolder-current-group))
737 (progn
738 (nnmail-activate 'nnfolder)
739 (and (assoc group nnfolder-group-alist)
740 (file-exists-p (nnfolder-group-pathname group)))))
58724016 741 (if dont-check
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742 (setq nnfolder-current-group group
743 nnfolder-current-buffer nil)
58724016 744 (let (inf file)
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745 ;; If we have to change groups, see if we don't already have
746 ;; the folder in memory. If we do, verify the modtime and
747 ;; destroy the folder if needed so we can rescan it.
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748 (setq nnfolder-current-buffer
749 (nth 1 (assoc group nnfolder-buffer-alist)))
750
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751 ;; If the buffer is not live, make sure it isn't in the
752 ;; alist. If it is live, verify that nobody else has
753 ;; touched the file since last time.
58724016
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754 (when (and nnfolder-current-buffer
755 (not (gnus-buffer-live-p nnfolder-current-buffer)))
756 (setq nnfolder-buffer-alist (delq inf nnfolder-buffer-alist)
757 nnfolder-current-buffer nil))
a8151ef7 758
58724016 759 (setq nnfolder-current-group group)
a8151ef7 760
58724016 761 (when (or (not nnfolder-current-buffer)
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762 (not (verify-visited-file-modtime
763 nnfolder-current-buffer)))
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764 (save-excursion
765 (setq file (nnfolder-group-pathname group))
766 ;; See whether we need to create the new file.
767 (unless (file-exists-p file)
768 (gnus-make-directory (file-name-directory file))
a1506d29 769 (let ((nnmail-file-coding-system
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770 (or nnfolder-file-coding-system-for-write
771 nnfolder-file-coding-system-for-write)))
be1ad767
SM
772 (nnmail-write-region (point-min) (point-min)
773 file t 'nomesg)))
58724016
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774 (when (setq nnfolder-current-buffer (nnfolder-read-folder group))
775 (set-buffer nnfolder-current-buffer)
776 (push (list group nnfolder-current-buffer)
777 nnfolder-buffer-alist)))))))))
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778
779(defun nnfolder-save-mail (group-art-list)
780 "Called narrowed to an article."
781 (let* (save-list group-art)
782 (goto-char (point-min))
783 ;; The From line may have been quoted by movemail.
16409b0b 784 (when (looking-at ">From")
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785 (delete-char 1))
786 ;; This might come from somewhere else.
16409b0b 787 (unless (looking-at "From ")
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788 (insert "From nobody " (current-time-string) "\n")
789 (goto-char (point-min)))
6748645f 790 ;; Quote all "From " lines in the article.
16409b0b 791 (forward-line 1)
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792 (let (case-fold-search)
793 (while (re-search-forward "^From " nil t)
794 (beginning-of-line)
795 (insert "> ")))
796 (setq save-list group-art-list)
797 (nnmail-insert-lines)
798 (nnmail-insert-xref group-art-list)
799 (run-hooks 'nnmail-prepare-save-mail-hook)
800 (run-hooks 'nnfolder-prepare-save-mail-hook)
801
802 ;; Insert the mail into each of the destination groups.
803 (while (setq group-art (pop group-art-list))
804 ;; Kill any previous newsgroup markers.
805 (goto-char (point-min))
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806 (if (search-forward "\n\n" nil t)
807 (forward-line -1)
808 (goto-char (point-max)))
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809 (while (search-backward (concat "\n" nnfolder-article-marker) nil t)
810 (delete-region (1+ (point)) (progn (forward-line 2) (point))))
811
812 ;; Insert the new newsgroup marker.
813 (nnfolder-insert-newsgroup-line group-art)
814
815 (save-excursion
816 (let ((beg (point-min))
817 (end (point-max))
818 (obuf (current-buffer)))
819 (nnfolder-possibly-change-folder (car group-art))
820 (let ((buffer-read-only nil))
6748645f 821 (nnfolder-normalize-buffer)
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822 (insert-buffer-substring obuf beg end))
823 (unless (or gnus-nov-is-evil nnfolder-nov-is-evil)
824 (set-buffer obuf)
825 (nnfolder-add-nov (car group-art) (cdr group-art)
826 (nnfolder-parse-head nil beg end))))))
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827
828 ;; Did we save it anywhere?
829 save-list))
830
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831(defun nnfolder-normalize-buffer ()
832 "Make sure there are two newlines at the end of the buffer."
833 (goto-char (point-max))
834 (skip-chars-backward "\n")
835 (delete-region (point) (point-max))
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836 (unless (bobp)
837 (insert "\n\n")))
6748645f 838
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839(defun nnfolder-insert-newsgroup-line (group-art)
840 (save-excursion
841 (goto-char (point-min))
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842 (unless (search-forward "\n\n" nil t)
843 (goto-char (point-max))
844 (insert "\n"))
845 (forward-char -1)
846 (insert (format (concat nnfolder-article-marker "%d %s\n")
34128042 847 (cdr group-art) (message-make-date)))))
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848
849(defun nnfolder-active-number (group)
850 ;; Find the next article number in GROUP.
851 (let ((active (cadr (assoc group nnfolder-group-alist))))
852 (if active
853 (setcdr active (1+ (cdr active)))
854 ;; This group is new, so we create a new entry for it.
855 ;; This might be a bit naughty... creating groups on the drop of
856 ;; a hat, but I don't know...
857 (push (list group (setq active (cons 1 1)))
858 nnfolder-group-alist))
859 (cdr active)))
860
861(defun nnfolder-possibly-change-folder (group)
862 (let ((inf (assoc group nnfolder-buffer-alist)))
863 (if (and inf
864 (gnus-buffer-live-p (cadr inf)))
865 (set-buffer (cadr inf))
866 (when inf
867 (setq nnfolder-buffer-alist (delq inf nnfolder-buffer-alist)))
868 (when nnfolder-group-alist
16409b0b 869 (nnfolder-save-active nnfolder-group-alist nnfolder-active-file))
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870 (push (list group (nnfolder-read-folder group))
871 nnfolder-buffer-alist))))
872
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873;; This method has a problem if you've accidentally let the active
874;; list get out of sync with the files. This could happen, say, if
875;; you've accidentally gotten new mail with something other than Gnus
876;; (but why would _that_ ever happen? :-). In that case, we will be
877;; in the middle of processing the file, ready to add new X-Gnus
878;; article number markers, and we'll run across a message with no ID
879;; yet - the active list _may_not_ be ready for us yet.
880
881;; To handle this, I'm modifying this routine to maintain the maximum
882;; ID seen so far, and when we hit a message with no ID, we will
883;; _manually_ scan the rest of the message looking for any more,
884;; possibly higher IDs. We'll assume the maximum that we find is the
885;; highest active. Note that this shouldn't cost us much extra time
886;; at all, but will be a lot less vulnerable to glitches between the
887;; mbox and the active file.
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888
889(defun nnfolder-read-folder (group)
890 (let* ((file (nnfolder-group-pathname group))
23f87bed 891 (nov (nnfolder-group-nov-pathname group))
16409b0b 892 (buffer (set-buffer
a1506d29 893 (let ((nnheader-file-coding-system
16409b0b 894 nnfolder-file-coding-system))
ff4d3926 895 (nnheader-find-file-noselect file t)))))
2c902422 896 (mm-enable-multibyte) ;; Use multibyte buffer for future copying.
d4755e04 897 (buffer-disable-undo)
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898 (if (equal (cadr (assoc group nnfolder-scantime-alist))
899 (nth 5 (file-attributes file)))
900 ;; This looks up-to-date, so we don't do any scanning.
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901 (if (file-exists-p file)
902 buffer
903 (push (list group buffer) nnfolder-buffer-alist)
904 (set-buffer-modified-p t)
16409b0b 905 (nnfolder-save-buffer))
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906 ;; Parse the damn thing.
907 (save-excursion
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908 (goto-char (point-min))
909 ;; Remove any blank lines at the start.
910 (while (eq (following-char) ?\n)
911 (delete-char 1))
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912 (nnmail-activate 'nnfolder)
913 ;; Read in the file.
16409b0b 914 (let ((delim "^From ")
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915 (marker (concat "\n" nnfolder-article-marker))
916 (number "[0-9]+")
917 (active (or (cadr (assoc group nnfolder-group-alist))
918 (cons 1 0)))
919 (scantime (assoc group nnfolder-scantime-alist))
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920 (minid (or (and (boundp 'most-positive-fixnum)
921 most-positive-fixnum)
922 (lsh -1 -1)))
eec82323 923 maxid start end newscantime
23f87bed 924 novbuf articles newnum
eec82323 925 buffer-read-only)
eec82323 926 (setq maxid (cdr active))
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927
928 (unless (or gnus-nov-is-evil nnfolder-nov-is-evil
929 (and (file-exists-p nov)
930 (file-newer-than-file-p nov file)))
931 (unless (file-exists-p nov)
932 (gnus-make-directory (file-name-directory nov)))
933 (with-current-buffer
934 (setq novbuf (nnfolder-open-nov group))
935 (goto-char (point-min))
936 (while (not (eobp))
937 (push (read novbuf) articles)
938 (forward-line 1))
939 (setq articles (nreverse articles))))
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940 (goto-char (point-min))
941
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942 ;; Anytime the active number is 1 or 0, it is suspect. In
943 ;; that case, search the file manually to find the active
944 ;; number. Or, of course, if we're being paranoid. (This
945 ;; would also be the place to build other lists from the
946 ;; header markers, such as expunge lists, etc., if we ever
947 ;; desired to abandon the active file entirely for mboxes.)
eec82323 948 (when (or nnfolder-ignore-active-file
23f87bed 949 novbuf
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950 (< maxid 2))
951 (while (and (search-forward marker nil t)
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952 (looking-at number))
953 (setq newnum (string-to-number (match-string 0)))
954 (when (nnmail-within-headers-p)
955 (setq maxid (max maxid newnum)
956 minid (min minid newnum))
957 (when novbuf
958 (if (memq newnum articles)
959 (setq articles (delq newnum articles))
960 (let ((headers (nnfolder-parse-head newnum)))
961 (with-current-buffer novbuf
962 (nnheader-find-nov-line newnum)
963 (nnheader-insert-nov headers)))))))
964 (when (and novbuf articles)
965 (with-current-buffer novbuf
966 (dolist (article articles)
967 (when (nnheader-find-nov-line article)
968 (delete-region (point)
969 (progn (forward-line 1) (point)))))))
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970 (setcar active (max 1 (min minid maxid)))
971 (setcdr active (max maxid (cdr active)))
972 (goto-char (point-min)))
973
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974 ;; As long as we trust that the user will only insert
975 ;; unmarked mail at the end, go to the end and search
976 ;; backwards for the last marker. Find the start of that
977 ;; message, and begin to search for unmarked messages from
978 ;; there.
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979 (when (not (or nnfolder-distrust-mbox
980 (< maxid 2)))
981 (goto-char (point-max))
982 (unless (re-search-backward marker nil t)
983 (goto-char (point-min)))
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984 ;;(when (nnmail-search-unix-mail-delim)
985 ;; (goto-char (point-min)))
986 )
eec82323 987
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988 ;; Keep track of the active number on our own, and insert it
989 ;; back into the active list when we're done. Also, prime
990 ;; the pump to cut down on the number of searches we do.
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991 (unless (nnmail-search-unix-mail-delim)
992 (goto-char (point-max)))
993 (setq end (point-marker))
994 (while (not (= end (point-max)))
995 (setq start (marker-position end))
996 (goto-char end)
23f87bed 997 ;; There may be more than one "From " line, so we skip past
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998 ;; them.
999 (while (looking-at delim)
1000 (forward-line 1))
1001 (set-marker end (if (nnmail-search-unix-mail-delim)
1002 (point)
1003 (point-max)))
1004 (goto-char start)
1005 (when (not (search-forward marker end t))
1006 (narrow-to-region start end)
1007 (nnmail-insert-lines)
1008 (nnfolder-insert-newsgroup-line
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1009 (cons nil
1010 (setq newnum
1011 (nnfolder-active-number group))))
1012 (when novbuf
1013 (let ((headers (nnfolder-parse-head newnum (point-min)
1014 (point-max))))
1015 (with-current-buffer novbuf
1016 (goto-char (point-max))
1017 (nnheader-insert-nov headers))))
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1018 (widen)))
1019
1020 (set-marker end nil)
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1021 ;; Make absolutely sure that the active list reflects
1022 ;; reality!
16409b0b 1023 (nnfolder-save-active nnfolder-group-alist nnfolder-active-file)
23f87bed 1024
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1025 ;; Set the scantime for this group.
1026 (setq newscantime (visited-file-modtime))
1027 (if scantime
1028 (setcdr scantime (list newscantime))
23f87bed 1029 (push (list group newscantime)
eec82323 1030 nnfolder-scantime-alist))
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1031 ;; Save nov.
1032 (when novbuf
1033 (nnfolder-save-nov))
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1034 (current-buffer))))))
1035
1036;;;###autoload
1037(defun nnfolder-generate-active-file ()
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1038 "Look for mbox folders in the nnfolder directory and make them into groups.
1039This command does not work if you use short group names."
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1040 (interactive)
1041 (nnmail-activate 'nnfolder)
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1042 (unless (or gnus-nov-is-evil nnfolder-nov-is-evil)
1043 (dolist (file (directory-files (or nnfolder-nov-directory
1044 nnfolder-directory)
1045 t
1046 (concat
1047 (regexp-quote nnfolder-nov-file-suffix)
1048 "$")))
1049 (when (not (message-mail-file-mbox-p file))
1050 (ignore-errors
1051 (delete-file file)))))
01c52d31 1052 (dolist (file (directory-files nnfolder-directory))
eec82323 1053 (when (and (not (backup-file-name-p file))
23f87bed 1054 (message-mail-file-mbox-p
eec82323 1055 (nnheader-concat nnfolder-directory file)))
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1056 (let ((oldgroup (assoc file nnfolder-group-alist)))
1057 (if oldgroup
1058 (nnheader-message 5 "Refreshing group %s..." file)
1059 (nnheader-message 5 "Adding group %s..." file))
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1060 (if oldgroup
1061 (setq nnfolder-group-alist
1062 (delq oldgroup (copy-sequence nnfolder-group-alist))))
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1063 (push (list file (cons 1 0)) nnfolder-group-alist)
1064 (nnfolder-possibly-change-folder file)
1065 (nnfolder-possibly-change-group file)
1066 (nnfolder-close-group file))))
01c52d31 1067 (nnheader-message 5 ""))
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1068
1069(defun nnfolder-group-pathname (group)
35ef97a5 1070 "Make file name for GROUP."
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1071 (setq group
1072 (mm-encode-coding-string group nnmail-pathname-coding-system))
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1073 (let ((dir (file-name-as-directory (expand-file-name nnfolder-directory))))
1074 ;; If this file exists, we use it directly.
1075 (if (or nnmail-use-long-file-names
1076 (file-exists-p (concat dir group)))
1077 (concat dir group)
1078 ;; If not, we translate dots into slashes.
1079 (concat dir (nnheader-replace-chars-in-string group ?. ?/)))))
1080
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1081(defun nnfolder-group-nov-pathname (group)
1082 "Make pathname for GROUP NOV."
1083 (let ((nnfolder-directory
1084 (or nnfolder-nov-directory nnfolder-directory)))
1085 (concat (nnfolder-group-pathname group) nnfolder-nov-file-suffix)))
1086
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1087(defun nnfolder-save-buffer ()
1088 "Save the buffer."
1089 (when (buffer-modified-p)
1090 (run-hooks 'nnfolder-save-buffer-hook)
a8151ef7 1091 (gnus-make-directory (file-name-directory (buffer-file-name)))
a1506d29 1092 (let ((coding-system-for-write
16409b0b 1093 (or nnfolder-file-coding-system-for-write
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1094 nnfolder-file-coding-system))
1095 (copyright-update nil))
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1096 (save-buffer)))
1097 (unless (or gnus-nov-is-evil nnfolder-nov-is-evil)
1098 (nnfolder-save-nov)))
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1099
1100(defun nnfolder-save-active (group-alist active-file)
1101 (let ((nnmail-active-file-coding-system
1102 (or nnfolder-active-file-coding-system-for-write
1103 nnfolder-active-file-coding-system)))
1104 (nnmail-save-active group-alist active-file)))
eec82323 1105
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1106(defun nnfolder-open-nov (group)
1107 (or (cdr (assoc group nnfolder-nov-buffer-alist))
1108 (let ((buffer (get-buffer-create (format " *nnfolder overview %s*" group))))
20a673b2 1109 (with-current-buffer buffer
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1110 (set (make-local-variable 'nnfolder-nov-buffer-file-name)
1111 (nnfolder-group-nov-pathname group))
1112 (erase-buffer)
1113 (when (file-exists-p nnfolder-nov-buffer-file-name)
1114 (nnheader-insert-file-contents nnfolder-nov-buffer-file-name)))
1115 (push (cons group buffer) nnfolder-nov-buffer-alist)
1116 buffer)))
1117
1118(defun nnfolder-save-nov ()
1119 (save-excursion
1120 (while nnfolder-nov-buffer-alist
1121 (when (buffer-name (cdar nnfolder-nov-buffer-alist))
1122 (set-buffer (cdar nnfolder-nov-buffer-alist))
1123 (when (buffer-modified-p)
1124 (gnus-make-directory (file-name-directory
1125 nnfolder-nov-buffer-file-name))
1126 (nnmail-write-region 1 (point-max) nnfolder-nov-buffer-file-name
1127 nil 'nomesg))
1128 (set-buffer-modified-p nil)
1129 (kill-buffer (current-buffer)))
1130 (setq nnfolder-nov-buffer-alist (cdr nnfolder-nov-buffer-alist)))))
1131
1132(defun nnfolder-nov-delete-article (group article)
20a673b2 1133 (with-current-buffer (nnfolder-open-nov group)
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1134 (when (nnheader-find-nov-line article)
1135 (delete-region (point) (progn (forward-line 1) (point))))
1136 t))
1137
1138(defun nnfolder-retrieve-headers-with-nov (articles &optional fetch-old)
1139 (if (or gnus-nov-is-evil nnfolder-nov-is-evil)
1140 nil
1141 (let ((nov (nnfolder-group-nov-pathname nnfolder-current-group)))
1142 (when (file-exists-p nov)
20a673b2 1143 (with-current-buffer nntp-server-buffer
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1144 (erase-buffer)
1145 (nnheader-insert-file-contents nov)
1146 (if (and fetch-old
1147 (not (numberp fetch-old)))
1148 t ; Don't remove anything.
1149 (nnheader-nov-delete-outside-range
1150 (if fetch-old (max 1 (- (car articles) fetch-old))
1151 (car articles))
1152 (car (last articles)))
1153 t))))))
1154
1155(defun nnfolder-parse-head (&optional number b e)
1156 "Parse the head of the current buffer."
1157 (let ((buf (current-buffer))
1158 chars)
1159 (save-excursion
1160 (unless b
1161 (setq b (if (nnmail-search-unix-mail-delim-backward)
1162 (point) (point-min)))
1163 (forward-line 1)
1164 (setq e (if (nnmail-search-unix-mail-delim)
1165 (point) (point-max))))
1166 (setq chars (- e b))
1167 (unless (zerop chars)
1168 (goto-char b)
1169 (if (search-forward "\n\n" e t) (setq e (1- (point)))))
1170 (with-temp-buffer
1171 (insert-buffer-substring buf b e)
1172 (let ((headers (nnheader-parse-naked-head)))
1173 (mail-header-set-chars headers chars)
1174 (mail-header-set-number headers number)
1175 headers)))))
1176
1177(defun nnfolder-add-nov (group article headers)
1178 "Add a nov line for the GROUP base."
20a673b2 1179 (with-current-buffer (nnfolder-open-nov group)
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1180 (goto-char (point-max))
1181 (mail-header-set-number headers article)
1182 (nnheader-insert-nov headers)))
1183
1184(deffoo nnfolder-request-set-mark (group actions &optional server)
1185 (when (and server
1186 (not (nnfolder-server-opened server)))
1187 (nnfolder-open-server server))
1188 (unless nnfolder-marks-is-evil
1189 (nnfolder-open-marks group server)
5f285722 1190 (setq nnfolder-marks (nnheader-update-marks-actions nnfolder-marks actions))
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1191 (nnfolder-save-marks group server))
1192 nil)
1193
b1ae92ba 1194(deffoo nnfolder-request-marks (group info &optional server)
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1195 ;; Change servers.
1196 (when (and server
1197 (not (nnfolder-server-opened server)))
1198 (nnfolder-open-server server))
1199 (when (and (not nnfolder-marks-is-evil) (nnfolder-marks-changed-p group))
1200 (nnheader-message 8 "Updating marks for %s..." group)
1201 (nnfolder-open-marks group server)
1202 ;; Update info using `nnfolder-marks'.
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1203 (mapc (lambda (pred)
1204 (unless (memq (cdr pred) gnus-article-unpropagated-mark-lists)
1205 (gnus-info-set-marks
1206 info
1207 (gnus-update-alist-soft
1208 (cdr pred)
1209 (cdr (assq (cdr pred) nnfolder-marks))
1210 (gnus-info-marks info))
1211 t)))
1212 gnus-article-mark-lists)
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1213 (let ((seen (cdr (assq 'read nnfolder-marks))))
1214 (gnus-info-set-read info
1215 (if (and (integerp (car seen))
1216 (null (cdr seen)))
1217 (list (cons (car seen) (car seen)))
1218 seen)))
1219 (nnheader-message 8 "Updating marks for %s...done" group))
1220 info)
1221
1222(defun nnfolder-group-marks-pathname (group)
1223 "Make pathname for GROUP NOV."
1224 (let ((nnfolder-directory (or nnfolder-marks-directory nnfolder-directory)))
1225 (concat (nnfolder-group-pathname group) nnfolder-marks-file-suffix)))
1226
1227(defun nnfolder-marks-changed-p (group)
1228 (let ((file (nnfolder-group-marks-pathname group)))
1229 (if (null (gnus-gethash file nnfolder-marks-modtime))
1230 t ;; never looked at marks file, assume it has changed
1231 (not (equal (gnus-gethash file nnfolder-marks-modtime)
1232 (nth 5 (file-attributes file)))))))
1233
1234(defun nnfolder-save-marks (group server)
1235 (let ((file-name-coding-system nnmail-pathname-coding-system)
1236 (file (nnfolder-group-marks-pathname group)))
1237 (condition-case err
1238 (progn
1239 (with-temp-file file
1240 (erase-buffer)
1241 (gnus-prin1 nnfolder-marks)
1242 (insert "\n"))
1243 (gnus-sethash file
1244 (nth 5 (file-attributes file))
1245 nnfolder-marks-modtime))
1246 (error (or (gnus-yes-or-no-p
1247 (format "Could not write to %s (%s). Continue? " file err))
141fa910 1248 (error "Cannot write to %s (%s)" file err))))))
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1249
1250(defun nnfolder-open-marks (group server)
1251 (let ((file (nnfolder-group-marks-pathname group)))
1252 (if (file-exists-p file)
1253 (condition-case err
1254 (with-temp-buffer
1255 (gnus-sethash file (nth 5 (file-attributes file))
1256 nnfolder-marks-modtime)
1257 (nnheader-insert-file-contents file)
1258 (setq nnfolder-marks (read (current-buffer)))
1259 (dolist (el gnus-article-unpropagated-mark-lists)
1260 (setq nnfolder-marks (gnus-remassoc el nnfolder-marks))))
1261 (error (or (gnus-yes-or-no-p
1262 (format "Error reading nnfolder marks file %s (%s). Continuing will use marks from .newsrc.eld. Continue? " file err))
1263 (error "Cannot read nnfolder marks file %s (%s)" file err))))
1264 ;; User didn't have a .marks file. Probably first time
1265 ;; user of the .marks stuff. Bootstrap it from .newsrc.eld.
1266 (let ((info (gnus-get-info
1267 (gnus-group-prefixed-name
1268 group
1269 (gnus-server-to-method (format "nnfolder:%s" server))))))
1270 (nnheader-message 7 "Bootstrapping marks for %s..." group)
1271 (setq nnfolder-marks (gnus-info-marks info))
1272 (push (cons 'read (gnus-info-read info)) nnfolder-marks)
1273 (dolist (el gnus-article-unpropagated-mark-lists)
1274 (setq nnfolder-marks (gnus-remassoc el nnfolder-marks)))
1275 (nnfolder-save-marks group server)
1276 (nnheader-message 7 "Bootstrapping marks for %s...done" group)))))
1277
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1278(provide 'nnfolder)
1279
1280;;; nnfolder.el ends here