Mercurial > hg > xemacs-beta
comparison lisp/gnus/nnmh.el @ 0:376386a54a3c r19-14
Import from CVS: tag r19-14
author | cvs |
---|---|
date | Mon, 13 Aug 2007 08:45:50 +0200 |
parents | |
children | ac2d302a0011 |
comparison
equal
deleted
inserted
replaced
-1:000000000000 | 0:376386a54a3c |
---|---|
1 ;;; nnmh.el --- mhspool access for Gnus | |
2 ;; Copyright (C) 1995,96 Free Software Foundation, Inc. | |
3 | |
4 ;; Author: Lars Magne Ingebrigtsen <larsi@ifi.uio.no> | |
5 ;; Masanobu UMEDA <umerin@flab.flab.fujitsu.junet> | |
6 ;; Keywords: news, mail | |
7 | |
8 ;; This file is part of GNU Emacs. | |
9 | |
10 ;; GNU Emacs is free software; you can redistribute it and/or modify | |
11 ;; it under the terms of the GNU General Public License as published by | |
12 ;; the Free Software Foundation; either version 2, or (at your option) | |
13 ;; any later version. | |
14 | |
15 ;; GNU Emacs is distributed in the hope that it will be useful, | |
16 ;; but WITHOUT ANY WARRANTY; without even the implied warranty of | |
17 ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
18 ;; GNU General Public License for more details. | |
19 | |
20 ;; You should have received a copy of the GNU General Public License | |
21 ;; along with GNU Emacs; see the file COPYING. If not, write to the | |
22 ;; Free Software Foundation, Inc., 59 Temple Place - Suite 330, | |
23 ;; Boston, MA 02111-1307, USA. | |
24 | |
25 ;;; Commentary: | |
26 | |
27 ;; Based on nnspool.el by Masanobu UMEDA <umerin@flab.flab.fujitsu.junet>. | |
28 ;; For an overview of what the interface functions do, please see the | |
29 ;; Gnus sources. | |
30 | |
31 ;;; Code: | |
32 | |
33 (require 'nnheader) | |
34 (require 'nnmail) | |
35 (require 'gnus) | |
36 (require 'nnoo) | |
37 (eval-and-compile (require 'cl)) | |
38 | |
39 (nnoo-declare nnmh) | |
40 | |
41 (defvoo nnmh-directory message-directory | |
42 "*Mail spool directory.") | |
43 | |
44 (defvoo nnmh-get-new-mail t | |
45 "*If non-nil, nnmh will check the incoming mail file and split the mail.") | |
46 | |
47 (defvoo nnmh-prepare-save-mail-hook nil | |
48 "*Hook run narrowed to an article before saving.") | |
49 | |
50 (defvoo nnmh-be-safe nil | |
51 "*If non-nil, nnmh will check all articles to make sure whether they are new or not.") | |
52 | |
53 | |
54 | |
55 (defconst nnmh-version "nnmh 1.0" | |
56 "nnmh version.") | |
57 | |
58 (defvoo nnmh-current-directory nil | |
59 "Current news group directory.") | |
60 | |
61 (defvoo nnmh-status-string "") | |
62 (defvoo nnmh-group-alist nil) | |
63 | |
64 | |
65 | |
66 ;;; Interface functions. | |
67 | |
68 (nnoo-define-basics nnmh) | |
69 | |
70 (deffoo nnmh-retrieve-headers (articles &optional newsgroup server fetch-old) | |
71 (save-excursion | |
72 (set-buffer nntp-server-buffer) | |
73 (erase-buffer) | |
74 (let* ((file nil) | |
75 (number (length articles)) | |
76 (large (and (numberp nnmail-large-newsgroup) | |
77 (> number nnmail-large-newsgroup))) | |
78 (count 0) | |
79 beg article) | |
80 (nnmh-possibly-change-directory newsgroup server) | |
81 ;; We don't support fetching by Message-ID. | |
82 (if (stringp (car articles)) | |
83 'headers | |
84 (while articles | |
85 (when (and (file-exists-p | |
86 (setq file (concat (file-name-as-directory | |
87 nnmh-current-directory) | |
88 (int-to-string | |
89 (setq article (pop articles)))))) | |
90 (not (file-directory-p file))) | |
91 (insert (format "221 %d Article retrieved.\n" article)) | |
92 (setq beg (point)) | |
93 (nnheader-insert-head file) | |
94 (goto-char beg) | |
95 (if (search-forward "\n\n" nil t) | |
96 (forward-char -1) | |
97 (goto-char (point-max)) | |
98 (insert "\n\n")) | |
99 (insert ".\n") | |
100 (delete-region (point) (point-max))) | |
101 (setq count (1+ count)) | |
102 | |
103 (and large | |
104 (zerop (% count 20)) | |
105 (message "nnmh: Receiving headers... %d%%" | |
106 (/ (* count 100) number)))) | |
107 | |
108 (and large (message "nnmh: Receiving headers...done")) | |
109 | |
110 (nnheader-fold-continuation-lines) | |
111 'headers)))) | |
112 | |
113 (deffoo nnmh-open-server (server &optional defs) | |
114 (nnoo-change-server 'nnmh server defs) | |
115 (when (not (file-exists-p nnmh-directory)) | |
116 (condition-case () | |
117 (make-directory nnmh-directory t) | |
118 (error t))) | |
119 (cond | |
120 ((not (file-exists-p nnmh-directory)) | |
121 (nnmh-close-server) | |
122 (nnheader-report 'nnmh "Couldn't create directory: %s" nnmh-directory)) | |
123 ((not (file-directory-p (file-truename nnmh-directory))) | |
124 (nnmh-close-server) | |
125 (nnheader-report 'nnmh "Not a directory: %s" nnmh-directory)) | |
126 (t | |
127 (nnheader-report 'nnmh "Opened server %s using directory %s" | |
128 server nnmh-directory) | |
129 t))) | |
130 | |
131 (deffoo nnmh-request-article (id &optional newsgroup server buffer) | |
132 (nnmh-possibly-change-directory newsgroup server) | |
133 (let ((file (if (stringp id) | |
134 nil | |
135 (concat nnmh-current-directory (int-to-string id)))) | |
136 (nntp-server-buffer (or buffer nntp-server-buffer))) | |
137 (and (stringp file) | |
138 (file-exists-p file) | |
139 (not (file-directory-p file)) | |
140 (save-excursion (nnmail-find-file file)) | |
141 (string-to-int (file-name-nondirectory file))))) | |
142 | |
143 (deffoo nnmh-request-group (group &optional server dont-check) | |
144 (let ((pathname (nnmail-group-pathname group nnmh-directory)) | |
145 dir) | |
146 (cond | |
147 ((not (file-directory-p pathname)) | |
148 (nnheader-report | |
149 'nnmh "Can't select group (no such directory): %s" group)) | |
150 (t | |
151 (setq nnmh-current-directory pathname) | |
152 (and nnmh-get-new-mail | |
153 nnmh-be-safe | |
154 (nnmh-update-gnus-unreads group)) | |
155 (cond | |
156 (dont-check | |
157 (nnheader-report 'nnmh "Selected group %s" group) | |
158 t) | |
159 (t | |
160 (setq dir | |
161 (sort | |
162 (mapcar (lambda (name) (string-to-int name)) | |
163 (directory-files pathname nil "^[0-9]+$" t)) | |
164 '<)) | |
165 (cond | |
166 (dir | |
167 (nnheader-report 'nnmh "Selected group %s" group) | |
168 (nnheader-insert | |
169 "211 %d %d %d %s\n" (length dir) (car dir) | |
170 (progn (while (cdr dir) (setq dir (cdr dir))) (car dir)) | |
171 group)) | |
172 (t | |
173 (nnheader-report 'nnmh "Empty group %s" group) | |
174 (nnheader-insert (format "211 0 1 0 %s\n" group)))))))))) | |
175 | |
176 (deffoo nnmh-request-scan (&optional group server) | |
177 (nnmail-get-new-mail 'nnmh nil nnmh-directory group)) | |
178 | |
179 (deffoo nnmh-request-list (&optional server dir) | |
180 (nnheader-insert "") | |
181 (let ((nnmh-toplev | |
182 (or dir (file-truename (file-name-as-directory nnmh-directory))))) | |
183 (nnmh-request-list-1 nnmh-toplev)) | |
184 (setq nnmh-group-alist (nnmail-get-active)) | |
185 t) | |
186 | |
187 (defvar nnmh-toplev) | |
188 (defun nnmh-request-list-1 (dir) | |
189 (setq dir (expand-file-name dir)) | |
190 ;; Recurse down all directories. | |
191 (let ((dirs (and (file-readable-p dir) | |
192 (> (nth 1 (file-attributes (file-chase-links dir))) 2) | |
193 (directory-files dir t nil t))) | |
194 dir) | |
195 ;; Recurse down directories. | |
196 (while (setq dir (pop dirs)) | |
197 (when (and (not (member (file-name-nondirectory dir) '("." ".."))) | |
198 (file-directory-p dir) | |
199 (file-readable-p dir)) | |
200 (nnmh-request-list-1 dir)))) | |
201 ;; For each directory, generate an active file line. | |
202 (unless (string= (expand-file-name nnmh-toplev) dir) | |
203 (let ((files (mapcar | |
204 (lambda (name) (string-to-int name)) | |
205 (directory-files dir nil "^[0-9]+$" t)))) | |
206 (when files | |
207 (save-excursion | |
208 (set-buffer nntp-server-buffer) | |
209 (goto-char (point-max)) | |
210 (insert | |
211 (format | |
212 "%s %d %d y\n" | |
213 (progn | |
214 (string-match | |
215 (regexp-quote | |
216 (file-truename (file-name-as-directory | |
217 (expand-file-name nnmh-toplev)))) dir) | |
218 (nnheader-replace-chars-in-string | |
219 (substring dir (match-end 0)) ?/ ?.)) | |
220 (apply 'max files) | |
221 (apply 'min files))))))) | |
222 t) | |
223 | |
224 (deffoo nnmh-request-newgroups (date &optional server) | |
225 (nnmh-request-list server)) | |
226 | |
227 (deffoo nnmh-request-expire-articles (articles newsgroup &optional server force) | |
228 (nnmh-possibly-change-directory newsgroup server) | |
229 (let* ((active-articles | |
230 (mapcar | |
231 (function | |
232 (lambda (name) | |
233 (string-to-int name))) | |
234 (directory-files nnmh-current-directory nil "^[0-9]+$" t))) | |
235 (is-old t) | |
236 article rest mod-time) | |
237 (nnmail-activate 'nnmh) | |
238 | |
239 (while (and articles is-old) | |
240 (setq article (concat nnmh-current-directory | |
241 (int-to-string (car articles)))) | |
242 (if (setq mod-time (nth 5 (file-attributes article))) | |
243 (if (and (nnmh-deletable-article-p newsgroup (car articles)) | |
244 (setq is-old | |
245 (nnmail-expired-article-p newsgroup mod-time force))) | |
246 (progn | |
247 (nnheader-message 5 "Deleting article %s in %s..." | |
248 article newsgroup) | |
249 (condition-case () | |
250 (funcall nnmail-delete-file-function article) | |
251 (file-error | |
252 (nnheader-message 1 "Couldn't delete article %s in %s" | |
253 article newsgroup) | |
254 (setq rest (cons (car articles) rest))))) | |
255 (setq rest (cons (car articles) rest)))) | |
256 (setq articles (cdr articles))) | |
257 (message "") | |
258 (nconc rest articles))) | |
259 | |
260 (deffoo nnmh-close-group (group &optional server) | |
261 t) | |
262 | |
263 (deffoo nnmh-request-move-article | |
264 (article group server accept-form &optional last) | |
265 (let ((buf (get-buffer-create " *nnmh move*")) | |
266 result) | |
267 (and | |
268 (nnmh-deletable-article-p group article) | |
269 (nnmh-request-article article group server) | |
270 (save-excursion | |
271 (set-buffer buf) | |
272 (insert-buffer-substring nntp-server-buffer) | |
273 (setq result (eval accept-form)) | |
274 (kill-buffer (current-buffer)) | |
275 result) | |
276 (progn | |
277 (nnmh-possibly-change-directory group server) | |
278 (condition-case () | |
279 (funcall nnmail-delete-file-function | |
280 (concat nnmh-current-directory (int-to-string article))) | |
281 (file-error nil)))) | |
282 result)) | |
283 | |
284 (deffoo nnmh-request-accept-article (group &optional server last noinsert) | |
285 (nnmh-possibly-change-directory group server) | |
286 (nnmail-check-syntax) | |
287 (if (stringp group) | |
288 (and | |
289 (nnmail-activate 'nnmh) | |
290 ;; We trick the choosing function into believing that only one | |
291 ;; group is available. | |
292 (let ((nnmail-split-methods (list (list group "")))) | |
293 (car (nnmh-save-mail noinsert)))) | |
294 (and | |
295 (nnmail-activate 'nnmh) | |
296 (car (nnmh-save-mail noinsert))))) | |
297 | |
298 (deffoo nnmh-request-replace-article (article group buffer) | |
299 (nnmh-possibly-change-directory group) | |
300 (save-excursion | |
301 (set-buffer buffer) | |
302 (nnmh-possibly-create-directory group) | |
303 (condition-case () | |
304 (progn | |
305 (write-region | |
306 (point-min) (point-max) | |
307 (concat nnmh-current-directory (int-to-string article)) | |
308 nil (if (nnheader-be-verbose 5) nil 'nomesg)) | |
309 t) | |
310 (error nil)))) | |
311 | |
312 (deffoo nnmh-request-create-group (group &optional server) | |
313 (nnmail-activate 'nnmh) | |
314 (or (assoc group nnmh-group-alist) | |
315 (let (active) | |
316 (setq nnmh-group-alist (cons (list group (setq active (cons 1 0))) | |
317 nnmh-group-alist)) | |
318 (nnmh-possibly-create-directory group) | |
319 (nnmh-possibly-change-directory group server) | |
320 (let ((articles (mapcar | |
321 (lambda (file) | |
322 (string-to-int file)) | |
323 (directory-files | |
324 nnmh-current-directory nil "^[0-9]+$")))) | |
325 (and articles | |
326 (progn | |
327 (setcar active (apply 'min articles)) | |
328 (setcdr active (apply 'max articles))))))) | |
329 t) | |
330 | |
331 (deffoo nnmh-request-delete-group (group &optional force server) | |
332 (nnmh-possibly-change-directory group server) | |
333 ;; Delete all articles in GROUP. | |
334 (if (not force) | |
335 () ; Don't delete the articles. | |
336 (let ((articles (directory-files nnmh-current-directory t "^[0-9]+$"))) | |
337 (while articles | |
338 (and (file-writable-p (car articles)) | |
339 (progn | |
340 (nnheader-message 5 "Deleting article %s in %s..." | |
341 (car articles) group) | |
342 (funcall nnmail-delete-file-function (car articles)))) | |
343 (setq articles (cdr articles)))) | |
344 ;; Try to delete the directory itself. | |
345 (condition-case () | |
346 (delete-directory nnmh-current-directory) | |
347 (error nil))) | |
348 ;; Remove the group from all structures. | |
349 (setq nnmh-group-alist | |
350 (delq (assoc group nnmh-group-alist) nnmh-group-alist) | |
351 nnmh-current-directory nil) | |
352 t) | |
353 | |
354 (deffoo nnmh-request-rename-group (group new-name &optional server) | |
355 (nnmh-possibly-change-directory group server) | |
356 ;; Rename directory. | |
357 (and (file-writable-p nnmh-current-directory) | |
358 (condition-case () | |
359 (progn | |
360 (rename-file | |
361 (directory-file-name nnmh-current-directory) | |
362 (directory-file-name | |
363 (nnmail-group-pathname new-name nnmh-directory))) | |
364 t) | |
365 (error nil)) | |
366 ;; That went ok, so we change the internal structures. | |
367 (let ((entry (assoc group nnmh-group-alist))) | |
368 (and entry (setcar entry new-name)) | |
369 (setq nnmh-current-directory nil) | |
370 t))) | |
371 | |
372 | |
373 ;;; Internal functions. | |
374 | |
375 (defun nnmh-possibly-change-directory (newsgroup &optional server) | |
376 (when (and server | |
377 (not (nnmh-server-opened server))) | |
378 (nnmh-open-server server)) | |
379 (if newsgroup | |
380 (let ((pathname (nnmail-group-pathname newsgroup nnmh-directory))) | |
381 (if (file-directory-p pathname) | |
382 (setq nnmh-current-directory pathname) | |
383 (error "No such newsgroup: %s" newsgroup))))) | |
384 | |
385 (defun nnmh-possibly-create-directory (group) | |
386 (let (dir dirs) | |
387 (setq dir (nnmail-group-pathname group nnmh-directory)) | |
388 (while (not (file-directory-p dir)) | |
389 (setq dirs (cons dir dirs)) | |
390 (setq dir (file-name-directory (directory-file-name dir)))) | |
391 (while dirs | |
392 (if (make-directory (directory-file-name (car dirs))) | |
393 (error "Could not create directory %s" (car dirs))) | |
394 (nnheader-message 5 "Creating mail directory %s" (car dirs)) | |
395 (setq dirs (cdr dirs))))) | |
396 | |
397 (defun nnmh-save-mail (&optional noinsert) | |
398 "Called narrowed to an article." | |
399 (let ((group-art (nreverse (nnmail-article-group 'nnmh-active-number)))) | |
400 (unless noinsert | |
401 (nnmail-insert-lines) | |
402 (nnmail-insert-xref group-art)) | |
403 (run-hooks 'nnmail-prepare-save-mail-hook) | |
404 (run-hooks 'nnmh-prepare-save-mail-hook) | |
405 (goto-char (point-min)) | |
406 (while (looking-at "From ") | |
407 (replace-match "X-From-Line: ") | |
408 (forward-line 1)) | |
409 ;; We save the article in all the newsgroups it belongs in. | |
410 (let ((ga group-art) | |
411 first) | |
412 (while ga | |
413 (nnmh-possibly-create-directory (caar ga)) | |
414 (let ((file (concat (nnmail-group-pathname | |
415 (caar ga) nnmh-directory) | |
416 (int-to-string (cdar ga))))) | |
417 (if first | |
418 ;; It was already saved, so we just make a hard link. | |
419 (funcall nnmail-crosspost-link-function first file t) | |
420 ;; Save the article. | |
421 (write-region (point-min) (point-max) file nil nil) | |
422 (setq first file))) | |
423 (setq ga (cdr ga)))) | |
424 group-art)) | |
425 | |
426 (defun nnmh-active-number (group) | |
427 "Compute the next article number in GROUP." | |
428 (let ((active (cadr (assoc group nnmh-group-alist)))) | |
429 ;; The group wasn't known to nnmh, so we just create an active | |
430 ;; entry for it. | |
431 (or active | |
432 (progn | |
433 (setq active (cons 1 0)) | |
434 (setq nnmh-group-alist (cons (list group active) nnmh-group-alist)))) | |
435 (setcdr active (1+ (cdr active))) | |
436 (while (file-exists-p | |
437 (concat (nnmail-group-pathname group nnmh-directory) | |
438 (int-to-string (cdr active)))) | |
439 (setcdr active (1+ (cdr active)))) | |
440 (cdr active))) | |
441 | |
442 (defun nnmh-update-gnus-unreads (group) | |
443 ;; Go through the .nnmh-articles file and compare with the actual | |
444 ;; articles in this folder. The articles that are "new" will be | |
445 ;; marked as unread by Gnus. | |
446 (let* ((dir nnmh-current-directory) | |
447 (files (sort (mapcar (function (lambda (name) (string-to-int name))) | |
448 (directory-files nnmh-current-directory | |
449 nil "^[0-9]+$" t)) '<)) | |
450 (nnmh-file (concat dir ".nnmh-articles")) | |
451 new articles) | |
452 ;; Load the .nnmh-articles file. | |
453 (if (file-exists-p nnmh-file) | |
454 (setq articles | |
455 (let (nnmh-newsgroup-articles) | |
456 (condition-case nil (load nnmh-file nil t t) (error nil)) | |
457 nnmh-newsgroup-articles))) | |
458 ;; Add all new articles to the `new' list. | |
459 (let ((art files)) | |
460 (while art | |
461 (if (not (assq (car art) articles)) (setq new (cons (car art) new))) | |
462 (setq art (cdr art)))) | |
463 ;; Remove all deleted articles. | |
464 (let ((art articles)) | |
465 (while art | |
466 (if (not (memq (caar art) files)) | |
467 (setq articles (delq (car art) articles))) | |
468 (setq art (cdr art)))) | |
469 ;; Check whether the highest-numbered articles really are the ones | |
470 ;; that Gnus thinks they are by looking at the time-stamps. | |
471 (let ((art articles)) | |
472 (while (and art | |
473 (not (equal | |
474 (nth 5 (file-attributes | |
475 (concat dir (int-to-string (caar art))))) | |
476 (cdar art)))) | |
477 (setq articles (delq (car art) articles)) | |
478 (setq new (cons (caar art) new)) | |
479 (setq art (cdr art)))) | |
480 ;; Go through all the new articles and add them, and their | |
481 ;; time-stamps to the list. | |
482 (let ((n new)) | |
483 (while n | |
484 (setq articles | |
485 (cons (cons | |
486 (car n) | |
487 (nth 5 (file-attributes | |
488 (concat dir (int-to-string (car n)))))) | |
489 articles)) | |
490 (setq n (cdr n)))) | |
491 ;; Make Gnus mark all new articles as unread. | |
492 (or (zerop (length new)) | |
493 (gnus-make-articles-unread | |
494 (gnus-group-prefixed-name group (list 'nnmh "")) | |
495 (setq new (sort new '<)))) | |
496 ;; Sort the article list with highest numbers first. | |
497 (setq articles (sort articles (lambda (art1 art2) | |
498 (> (car art1) (car art2))))) | |
499 ;; Finally write this list back to the .nnmh-articles file. | |
500 (save-excursion | |
501 (set-buffer (get-buffer-create "*nnmh out*")) | |
502 (insert ";; Gnus article active file for " group "\n\n") | |
503 (insert "(setq nnmh-newsgroup-articles '") | |
504 (insert (prin1-to-string articles) ")\n") | |
505 (write-region (point-min) (point-max) nnmh-file nil 'nomesg) | |
506 (kill-buffer (current-buffer))))) | |
507 | |
508 (defun nnmh-deletable-article-p (group article) | |
509 "Say whether ARTICLE in GROUP can be deleted." | |
510 (let ((path (concat nnmh-current-directory (int-to-string article)))) | |
511 (and (file-writable-p path) | |
512 (or (not nnmail-keep-last-article) | |
513 (not (eq (cdr (nth 1 (assoc group nnmh-group-alist))) | |
514 article)))))) | |
515 | |
516 (provide 'nnmh) | |
517 | |
518 ;;; nnmh.el ends here |