HCoop / bpt / emacs.git / blame
| Commit | Line | Data |
|---|---|---|
| eec82323 | 1 | ;;; nnfolder.el --- mail folder access for Gnus |
| 6748645f | 2 | ;; Copyright (C) 1995,96,97,98 Free Software Foundation, Inc. |
| eec82323 LMI |
3 | |
| 4 | ;; Author: Scott Byer <byer@mv.us.adobe.com> | |
| 6748645f | 5 | ;; Lars Magne Ingebrigtsen <larsi@gnus.org> |
| eec82323 LMI |
6 | ;; Masanobu UMEDA <umerin@flab.flab.fujitsu.junet> |
| 7 | ;; Keywords: mail | |
| 8 | ||
| 9 | ;; This file is part of GNU Emacs. | |
| 10 | ||
| 11 | ;; GNU Emacs is free software; you can redistribute it and/or modify | |
| 12 | ;; it under the terms of the GNU General Public License as published by | |
| 13 | ;; the Free Software Foundation; either version 2, or (at your option) | |
| 14 | ;; any later version. | |
| 15 | ||
| 16 | ;; GNU Emacs is distributed in the hope that it will be useful, | |
| 17 | ;; but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 18 | ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
| 19 | ;; GNU General Public License for more details. | |
| 20 | ||
| 21 | ;; You should have received a copy of the GNU General Public License | |
| 22 | ;; along with GNU Emacs; see the file COPYING. If not, write to the | |
| 23 | ;; Free Software Foundation, Inc., 59 Temple Place - Suite 330, | |
| 24 | ;; Boston, MA 02111-1307, USA. | |
| 25 | ||
| 26 | ;;; Commentary: | |
| 27 | ||
| 28 | ;;; Code: | |
| 29 | ||
| 30 | (require 'nnheader) | |
| 31 | (require 'message) | |
| 32 | (require 'nnmail) | |
| 33 | (require 'nnoo) | |
| 6748645f | 34 | (eval-when-compile (require 'cl)) |
| eec82323 LMI |
35 | (require 'gnus-util) |
| 36 | ||
| 37 | (nnoo-declare nnfolder) | |
| 38 | ||
| 39 | (defvoo nnfolder-directory (expand-file-name message-directory) | |
| 40 | "The name of the nnfolder directory.") | |
| 41 | ||
| 42 | (defvoo nnfolder-active-file | |
| 43 | (nnheader-concat nnfolder-directory "active") | |
| 44 | "The name of the active file.") | |
| 45 | ||
| 46 | ;; I renamed this variable to something more in keeping with the general GNU | |
| 47 | ;; style. -SLB | |
| 48 | ||
| 49 | (defvoo nnfolder-ignore-active-file nil | |
| 50 | "If non-nil, causes nnfolder to do some extra work in order to determine | |
| 51 | the true active ranges of an mbox file. Note that the active file is still | |
| 52 | saved, but it's values are not used. This costs some extra time when | |
| 53 | scanning an mbox when opening it.") | |
| 54 | ||
| 55 | (defvoo nnfolder-distrust-mbox nil | |
| 56 | "If non-nil, causes nnfolder to not trust the user with respect to | |
| 57 | inserting unaccounted for mail in the middle of an mbox file. This can greatly | |
| 58 | slow down scans, which now must scan the entire file for unmarked messages. | |
| 59 | When nil, scans occur forward from the last marked message, a huge | |
| 60 | time saver for large mailboxes.") | |
| 61 | ||
| 62 | (defvoo nnfolder-newsgroups-file | |
| 63 | (concat (file-name-as-directory nnfolder-directory) "newsgroups") | |
| 64 | "Mail newsgroups description file.") | |
| 65 | ||
| 66 | (defvoo nnfolder-get-new-mail t | |
| 67 | "If non-nil, nnfolder will check the incoming mail file and split the mail.") | |
| 68 | ||
| 69 | (defvoo nnfolder-prepare-save-mail-hook nil | |
| 70 | "Hook run narrowed to an article before saving.") | |
| 71 | ||
| 72 | (defvoo nnfolder-save-buffer-hook nil | |
| 73 | "Hook run before saving the nnfolder mbox buffer.") | |
| 74 | ||
| 75 | (defvoo nnfolder-inhibit-expiry nil | |
| 76 | "If non-nil, inhibit expiry.") | |
| 77 | ||
| 78 | \f | |
| 79 | ||
| 80 | (defconst nnfolder-version "nnfolder 1.0" | |
| 81 | "nnfolder version.") | |
| 82 | ||
| 83 | (defconst nnfolder-article-marker "X-Gnus-Article-Number: " | |
| 84 | "String used to demarcate what the article number for a message is.") | |
| 85 | ||
| 86 | (defvoo nnfolder-current-group nil) | |
| 87 | (defvoo nnfolder-current-buffer nil) | |
| 88 | (defvoo nnfolder-status-string "") | |
| 89 | (defvoo nnfolder-group-alist nil) | |
| 90 | (defvoo nnfolder-buffer-alist nil) | |
| 91 | (defvoo nnfolder-scantime-alist nil) | |
| 92 | (defvoo nnfolder-active-timestamp nil) | |
| 93 | ||
| 94 | \f | |
| 95 | ||
| 96 | ;;; Interface functions | |
| 97 | ||
| 98 | (nnoo-define-basics nnfolder) | |
| 99 | ||
| 100 | (deffoo nnfolder-retrieve-headers (articles &optional group server fetch-old) | |
| 101 | (save-excursion | |
| 102 | (set-buffer nntp-server-buffer) | |
| 103 | (erase-buffer) | |
| 6748645f | 104 | (let (article start stop) |
| eec82323 LMI |
105 | (nnfolder-possibly-change-group group server) |
| 106 | (when nnfolder-current-buffer | |
| 107 | (set-buffer nnfolder-current-buffer) | |
| 108 | (goto-char (point-min)) | |
| 109 | (if (stringp (car articles)) | |
| 110 | 'headers | |
| 6748645f | 111 | (while (setq article (pop articles)) |
| eec82323 | 112 | (set-buffer nnfolder-current-buffer) |
| 6748645f | 113 | (when (nnfolder-goto-article article) |
| eec82323 LMI |
114 | (setq start (point)) |
| 115 | (search-forward "\n\n" nil t) | |
| 116 | (setq stop (1- (point))) | |
| 117 | (set-buffer nntp-server-buffer) | |
| 118 | (insert (format "221 %d Article retrieved.\n" article)) | |
| 119 | (insert-buffer-substring nnfolder-current-buffer start stop) | |
| 120 | (goto-char (point-max)) | |
| 6748645f | 121 | (insert ".\n"))) |
| eec82323 LMI |
122 | |
| 123 | (set-buffer nntp-server-buffer) | |
| 124 | (nnheader-fold-continuation-lines) | |
| 125 | 'headers))))) | |
| 126 | ||
| 127 | (deffoo nnfolder-open-server (server &optional defs) | |
| 128 | (nnoo-change-server 'nnfolder server defs) | |
| 129 | (nnmail-activate 'nnfolder t) | |
| 130 | (gnus-make-directory nnfolder-directory) | |
| 131 | (cond | |
| 132 | ((not (file-exists-p nnfolder-directory)) | |
| 133 | (nnfolder-close-server) | |
| 134 | (nnheader-report 'nnfolder "Couldn't create directory: %s" | |
| 135 | nnfolder-directory)) | |
| 136 | ((not (file-directory-p (file-truename nnfolder-directory))) | |
| 137 | (nnfolder-close-server) | |
| 138 | (nnheader-report 'nnfolder "Not a directory: %s" nnfolder-directory)) | |
| 139 | (t | |
| 140 | (nnmail-activate 'nnfolder) | |
| 141 | (nnheader-report 'nnfolder "Opened server %s using directory %s" | |
| 142 | server nnfolder-directory) | |
| 143 | t))) | |
| 144 | ||
| 145 | (deffoo nnfolder-request-close () | |
| 146 | (let ((alist nnfolder-buffer-alist)) | |
| 147 | (while alist | |
| 148 | (nnfolder-close-group (caar alist) nil t) | |
| 149 | (setq alist (cdr alist)))) | |
| 150 | (nnoo-close-server 'nnfolder) | |
| 151 | (setq nnfolder-buffer-alist nil | |
| 152 | nnfolder-group-alist nil)) | |
| 153 | ||
| 154 | (deffoo nnfolder-request-article (article &optional group server buffer) | |
| 155 | (nnfolder-possibly-change-group group server) | |
| 156 | (save-excursion | |
| 157 | (set-buffer nnfolder-current-buffer) | |
| 158 | (goto-char (point-min)) | |
| 6748645f | 159 | (when (nnfolder-goto-article article) |
| eec82323 | 160 | (let (start stop) |
| eec82323 LMI |
161 | (setq start (point)) |
| 162 | (forward-line 1) | |
| 163 | (unless (and (nnmail-search-unix-mail-delim) | |
| 164 | (forward-line -1)) | |
| 165 | (goto-char (point-max))) | |
| 166 | (setq stop (point)) | |
| 167 | (let ((nntp-server-buffer (or buffer nntp-server-buffer))) | |
| 168 | (set-buffer nntp-server-buffer) | |
| 169 | (erase-buffer) | |
| 170 | (insert-buffer-substring nnfolder-current-buffer start stop) | |
| 171 | (goto-char (point-min)) | |
| 172 | (while (looking-at "From ") | |
| 173 | (delete-char 5) | |
| 174 | (insert "X-From-Line: ") | |
| 175 | (forward-line 1)) | |
| 176 | (if (numberp article) | |
| 177 | (cons nnfolder-current-group article) | |
| 178 | (goto-char (point-min)) | |
| 179 | (search-forward (concat "\n" nnfolder-article-marker)) | |
| 180 | (cons nnfolder-current-group | |
| 181 | (string-to-int | |
| 182 | (buffer-substring | |
| 183 | (point) (progn (end-of-line) (point))))))))))) | |
| 184 | ||
| 185 | (deffoo nnfolder-request-group (group &optional server dont-check) | |
| 186 | (nnfolder-possibly-change-group group server t) | |
| 187 | (save-excursion | |
| 188 | (if (not (assoc group nnfolder-group-alist)) | |
| 189 | (nnheader-report 'nnfolder "No such group: %s" group) | |
| 190 | (if dont-check | |
| 191 | (progn | |
| 192 | (nnheader-report 'nnfolder "Selected group %s" group) | |
| 193 | t) | |
| 194 | (let* ((active (assoc group nnfolder-group-alist)) | |
| 195 | (group (car active)) | |
| 196 | (range (cadr active))) | |
| 197 | (cond | |
| 198 | ((null active) | |
| 199 | (nnheader-report 'nnfolder "No such group: %s" group)) | |
| 200 | ((null nnfolder-current-group) | |
| 201 | (nnheader-report 'nnfolder "Empty group: %s" group)) | |
| 202 | (t | |
| 203 | (nnheader-report 'nnfolder "Selected group %s" group) | |
| 204 | (nnheader-insert "211 %d %d %d %s\n" | |
| 205 | (1+ (- (cdr range) (car range))) | |
| 206 | (car range) (cdr range) group)))))))) | |
| 207 | ||
| 208 | (deffoo nnfolder-request-scan (&optional group server) | |
| 209 | (nnfolder-possibly-change-group nil server) | |
| 210 | (when nnfolder-get-new-mail | |
| 211 | (nnfolder-possibly-change-group group server) | |
| 212 | (nnmail-get-new-mail | |
| 213 | 'nnfolder | |
| 214 | (lambda () | |
| 215 | (let ((bufs nnfolder-buffer-alist)) | |
| 216 | (save-excursion | |
| 217 | (while bufs | |
| 218 | (if (not (gnus-buffer-live-p (nth 1 (car bufs)))) | |
| 219 | (setq nnfolder-buffer-alist | |
| 220 | (delq (car bufs) nnfolder-buffer-alist)) | |
| 221 | (set-buffer (nth 1 (car bufs))) | |
| 222 | (nnfolder-save-buffer) | |
| 223 | (kill-buffer (current-buffer))) | |
| 224 | (setq bufs (cdr bufs)))))) | |
| 225 | nnfolder-directory | |
| 226 | group))) | |
| 227 | ||
| 228 | ;; Don't close the buffer if we're not shutting down the server. This way, | |
| 229 | ;; we can keep the buffer in the group buffer cache, and not have to grovel | |
| 230 | ;; over the buffer again unless we add new mail to it or modify it in some | |
| 231 | ;; way. | |
| 232 | ||
| 233 | (deffoo nnfolder-close-group (group &optional server force) | |
| 234 | ;; Make sure we _had_ the group open. | |
| 235 | (when (or (assoc group nnfolder-buffer-alist) | |
| 236 | (equal group nnfolder-current-group)) | |
| 237 | (let ((inf (assoc group nnfolder-buffer-alist))) | |
| 238 | (when inf | |
| 239 | (when (and nnfolder-current-group | |
| 240 | nnfolder-current-buffer) | |
| 241 | (push (list nnfolder-current-group nnfolder-current-buffer) | |
| 242 | nnfolder-buffer-alist)) | |
| 243 | (setq nnfolder-buffer-alist | |
| 244 | (delq inf nnfolder-buffer-alist)) | |
| 245 | (setq nnfolder-current-buffer (cadr inf) | |
| 246 | nnfolder-current-group (car inf)))) | |
| 247 | (when (and nnfolder-current-buffer | |
| 248 | (buffer-name nnfolder-current-buffer)) | |
| 249 | (save-excursion | |
| 250 | (set-buffer nnfolder-current-buffer) | |
| 251 | ;; If the buffer was modified, write the file out now. | |
| 252 | (nnfolder-save-buffer) | |
| 253 | ;; If we're shutting the server down, we need to kill the | |
| 254 | ;; buffer and remove it from the open buffer list. Or, of | |
| 255 | ;; course, if we're trying to minimize our space impact. | |
| 256 | (kill-buffer (current-buffer)) | |
| 257 | (setq nnfolder-buffer-alist (delq (assoc group nnfolder-buffer-alist) | |
| 258 | nnfolder-buffer-alist))))) | |
| 259 | (setq nnfolder-current-group nil | |
| 260 | nnfolder-current-buffer nil) | |
| 261 | t) | |
| 262 | ||
| 263 | (deffoo nnfolder-request-create-group (group &optional server args) | |
| 264 | (nnfolder-possibly-change-group nil server) | |
| 265 | (nnmail-activate 'nnfolder) | |
| 266 | (when group | |
| 267 | (unless (assoc group nnfolder-group-alist) | |
| 268 | (push (list group (cons 1 0)) nnfolder-group-alist) | |
| a8151ef7 LMI |
269 | (nnmail-save-active nnfolder-group-alist nnfolder-active-file) |
| 270 | (nnfolder-read-folder group))) | |
| eec82323 LMI |
271 | t) |
| 272 | ||
| 273 | (deffoo nnfolder-request-list (&optional server) | |
| 274 | (nnfolder-possibly-change-group nil server) | |
| 275 | (save-excursion | |
| 58724016 | 276 | (let ((nnmail-file-coding-system nnmail-active-file-coding-system) |
| 6748645f | 277 | (pathname-coding-system 'binary)) |
| 58724016 KH |
278 | (nnmail-find-file nnfolder-active-file) |
| 279 | (setq nnfolder-group-alist (nnmail-get-active))) | |
| eec82323 LMI |
280 | t)) |
| 281 | ||
| 282 | (deffoo nnfolder-request-newgroups (date &optional server) | |
| 283 | (nnfolder-possibly-change-group nil server) | |
| 284 | (nnfolder-request-list server)) | |
| 285 | ||
| 286 | (deffoo nnfolder-request-list-newsgroups (&optional server) | |
| 287 | (nnfolder-possibly-change-group nil server) | |
| 288 | (save-excursion | |
| 289 | (nnmail-find-file nnfolder-newsgroups-file))) | |
| 290 | ||
| 291 | (deffoo nnfolder-request-expire-articles | |
| 292 | (articles newsgroup &optional server force) | |
| 293 | (nnfolder-possibly-change-group newsgroup server) | |
| 294 | (let* ((is-old t) | |
| 295 | rest) | |
| 296 | (nnmail-activate 'nnfolder) | |
| 297 | ||
| 298 | (save-excursion | |
| 299 | (set-buffer nnfolder-current-buffer) | |
| 300 | (while (and articles is-old) | |
| 301 | (goto-char (point-min)) | |
| 6748645f | 302 | (when (nnfolder-goto-article (car articles)) |
| eec82323 LMI |
303 | (if (setq is-old |
| 304 | (nnmail-expired-article-p | |
| 305 | newsgroup | |
| 306 | (buffer-substring | |
| 307 | (point) (progn (end-of-line) (point))) | |
| 308 | force nnfolder-inhibit-expiry)) | |
| 309 | (progn | |
| 310 | (nnheader-message 5 "Deleting article %d..." | |
| 311 | (car articles) newsgroup) | |
| 312 | (nnfolder-delete-mail)) | |
| 313 | (push (car articles) rest))) | |
| 314 | (setq articles (cdr articles))) | |
| 315 | (unless nnfolder-inhibit-expiry | |
| 316 | (nnheader-message 5 "Deleting articles...done")) | |
| 317 | (nnfolder-save-buffer) | |
| 318 | (nnfolder-adjust-min-active newsgroup) | |
| 319 | (nnmail-save-active nnfolder-group-alist nnfolder-active-file) | |
| 320 | (nconc rest articles)))) | |
| 321 | ||
| 6748645f LMI |
322 | (deffoo nnfolder-request-move-article (article group server |
| 323 | accept-form &optional last) | |
| 324 | (save-excursion | |
| 325 | (let ((buf (get-buffer-create " *nnfolder move*")) | |
| 326 | result) | |
| 327 | (and | |
| 328 | (nnfolder-request-article article group server) | |
| 329 | (save-excursion | |
| 330 | (set-buffer buf) | |
| 331 | (buffer-disable-undo (current-buffer)) | |
| 332 | (erase-buffer) | |
| 333 | (insert-buffer-substring nntp-server-buffer) | |
| 334 | (goto-char (point-min)) | |
| 335 | (while (re-search-forward | |
| 336 | (concat "^" nnfolder-article-marker) | |
| 337 | (save-excursion (search-forward "\n\n" nil t) (point)) t) | |
| 338 | (delete-region (progn (beginning-of-line) (point)) | |
| 339 | (progn (forward-line 1) (point)))) | |
| 340 | (setq result (eval accept-form)) | |
| 341 | (kill-buffer buf) | |
| 342 | result) | |
| 343 | (save-excursion | |
| 344 | (nnfolder-possibly-change-group group server) | |
| 345 | (set-buffer nnfolder-current-buffer) | |
| 346 | (goto-char (point-min)) | |
| 347 | (when (nnfolder-goto-article article) | |
| 348 | (nnfolder-delete-mail)) | |
| 349 | (when last | |
| 350 | (nnfolder-save-buffer) | |
| 351 | (nnfolder-adjust-min-active group) | |
| 352 | (nnmail-save-active nnfolder-group-alist nnfolder-active-file)))) | |
| 353 | result))) | |
| eec82323 LMI |
354 | |
| 355 | (deffoo nnfolder-request-accept-article (group &optional server last) | |
| 6748645f LMI |
356 | (save-excursion |
| 357 | (nnfolder-possibly-change-group group server) | |
| 358 | (nnmail-check-syntax) | |
| 359 | (let ((buf (current-buffer)) | |
| 360 | result art-group) | |
| 361 | (goto-char (point-min)) | |
| 362 | (when (looking-at "X-From-Line: ") | |
| 363 | (replace-match "From ")) | |
| 364 | (and | |
| 365 | (nnfolder-request-list) | |
| eec82323 | 366 | (save-excursion |
| 6748645f LMI |
367 | (set-buffer buf) |
| 368 | (goto-char (point-min)) | |
| 369 | (search-forward "\n\n" nil t) | |
| 370 | (forward-line -1) | |
| 371 | (while (re-search-backward (concat "^" nnfolder-article-marker) nil t) | |
| 372 | (delete-region (point) (progn (forward-line 1) (point)))) | |
| eec82323 | 373 | (when nnmail-cache-accepted-message-ids |
| 6748645f LMI |
374 | (nnmail-cache-insert (nnmail-fetch-field "message-id"))) |
| 375 | (setq result (if (stringp group) | |
| 376 | (list (cons group (nnfolder-active-number group))) | |
| 377 | (setq art-group | |
| 378 | (nnmail-article-group 'nnfolder-active-number)))) | |
| 379 | (if (and (null result) | |
| 380 | (yes-or-no-p "Moved to `junk' group; delete article? ")) | |
| 381 | (setq result 'junk) | |
| 382 | (setq result | |
| 383 | (car (nnfolder-save-mail result))))) | |
| 384 | (when last | |
| 385 | (save-excursion | |
| 386 | (nnfolder-possibly-change-folder (or (caar art-group) group)) | |
| 387 | (nnfolder-save-buffer) | |
| 388 | (when nnmail-cache-accepted-message-ids | |
| 389 | (nnmail-cache-close))))) | |
| 390 | (nnmail-save-active nnfolder-group-alist nnfolder-active-file) | |
| 391 | (unless result | |
| 392 | (nnheader-report 'nnfolder "Couldn't store article")) | |
| 393 | result))) | |
| eec82323 LMI |
394 | |
| 395 | (deffoo nnfolder-request-replace-article (article group buffer) | |
| 396 | (nnfolder-possibly-change-group group) | |
| 397 | (save-excursion | |
| 6748645f LMI |
398 | (set-buffer buffer) |
| 399 | (goto-char (point-min)) | |
| 400 | (let (xfrom) | |
| 401 | (while (re-search-forward "^X-From-Line: \\(.*\\)$" nil t) | |
| 402 | (setq xfrom (match-string 1)) | |
| 403 | (gnus-delete-line)) | |
| 404 | (goto-char (point-min)) | |
| 405 | (if xfrom | |
| 406 | (insert "From " xfrom "\n") | |
| 407 | (unless (looking-at message-unix-mail-delimiter) | |
| 408 | (insert "From nobody " (current-time-string) "\n")))) | |
| 409 | (nnfolder-normalize-buffer) | |
| eec82323 LMI |
410 | (set-buffer nnfolder-current-buffer) |
| 411 | (goto-char (point-min)) | |
| 6748645f | 412 | (if (not (nnfolder-goto-article article)) |
| eec82323 | 413 | nil |
| 6748645f | 414 | (nnfolder-delete-mail) |
| eec82323 LMI |
415 | (insert-buffer-substring buffer) |
| 416 | (nnfolder-save-buffer) | |
| 417 | t))) | |
| 418 | ||
| 419 | (deffoo nnfolder-request-delete-group (group &optional force server) | |
| 420 | (nnfolder-close-group group server t) | |
| 421 | ;; Delete all articles in GROUP. | |
| 422 | (if (not force) | |
| 423 | () ; Don't delete the articles. | |
| 424 | ;; Delete the file that holds the group. | |
| 425 | (ignore-errors | |
| 426 | (delete-file (nnfolder-group-pathname group)))) | |
| 427 | ;; Remove the group from all structures. | |
| 428 | (setq nnfolder-group-alist | |
| 429 | (delq (assoc group nnfolder-group-alist) nnfolder-group-alist) | |
| 430 | nnfolder-current-group nil | |
| 431 | nnfolder-current-buffer nil) | |
| 432 | ;; Save the active file. | |
| 433 | (nnmail-save-active nnfolder-group-alist nnfolder-active-file) | |
| 434 | t) | |
| 435 | ||
| 436 | (deffoo nnfolder-request-rename-group (group new-name &optional server) | |
| 437 | (nnfolder-possibly-change-group group server) | |
| 438 | (save-excursion | |
| 439 | (set-buffer nnfolder-current-buffer) | |
| 440 | (and (file-writable-p buffer-file-name) | |
| 441 | (ignore-errors | |
| 442 | (rename-file | |
| 443 | buffer-file-name | |
| 444 | (nnfolder-group-pathname new-name)) | |
| 445 | t) | |
| 446 | ;; That went ok, so we change the internal structures. | |
| 447 | (let ((entry (assoc group nnfolder-group-alist))) | |
| 448 | (and entry (setcar entry new-name)) | |
| 449 | (setq nnfolder-current-buffer nil | |
| 450 | nnfolder-current-group nil) | |
| 451 | ;; Save the new group alist. | |
| 452 | (nnmail-save-active nnfolder-group-alist nnfolder-active-file) | |
| 453 | ;; We kill the buffer instead of renaming it and stuff. | |
| 454 | (kill-buffer (current-buffer)) | |
| 455 | t)))) | |
| 456 | ||
| a8151ef7 LMI |
457 | (defun nnfolder-request-regenerate (server) |
| 458 | (nnfolder-possibly-change-group nil server) | |
| 459 | (nnfolder-generate-active-file) | |
| 460 | t) | |
| 461 | ||
| eec82323 LMI |
462 | \f |
| 463 | ;;; Internal functions. | |
| 464 | ||
| 465 | (defun nnfolder-adjust-min-active (group) | |
| 466 | ;; Find the lowest active article in this group. | |
| 467 | (let* ((active (cadr (assoc group nnfolder-group-alist))) | |
| 468 | (marker (concat "\n" nnfolder-article-marker)) | |
| 469 | (number "[0-9]+") | |
| 470 | (activemin (cdr active))) | |
| 471 | (save-excursion | |
| 472 | (set-buffer nnfolder-current-buffer) | |
| 473 | (goto-char (point-min)) | |
| 474 | (while (and (search-forward marker nil t) | |
| 475 | (re-search-forward number nil t)) | |
| 6748645f LMI |
476 | (let ((newnum (string-to-number (match-string 0)))) |
| 477 | (if (nnmail-within-headers-p) | |
| 478 | (setq activemin (min activemin newnum))))) | |
| eec82323 LMI |
479 | (setcar active activemin)))) |
| 480 | ||
| 481 | (defun nnfolder-article-string (article) | |
| 482 | (if (numberp article) | |
| 483 | (concat "\n" nnfolder-article-marker (int-to-string article) " ") | |
| 484 | (concat "\nMessage-ID: " article))) | |
| 485 | ||
| 6748645f LMI |
486 | (defun nnfolder-goto-article (article) |
| 487 | "Place point at the start of the headers of ARTICLE. | |
| 488 | ARTICLE can be an article number or a Message-ID. | |
| 489 | Returns t if successful, nil otherwise." | |
| 490 | (let ((art-string (nnfolder-article-string article)) | |
| 491 | start found) | |
| 492 | ;; It is likely that we are at or before the delimiter line. | |
| 493 | ;; We therefore go to the end of the previous line, and start | |
| 494 | ;; searching from there. | |
| 495 | (beginning-of-line) | |
| 496 | (unless (bobp) | |
| 497 | (forward-char -1)) | |
| 498 | (setq start (point)) | |
| 499 | ;; First search forward. | |
| 500 | (while (and (setq found (search-forward art-string nil t)) | |
| 501 | (not (nnmail-within-headers-p)))) | |
| 502 | ;; If unsuccessful, search backward from where we started, | |
| 503 | (unless found | |
| 504 | (goto-char start) | |
| 505 | (while (and (setq found (search-backward art-string nil t)) | |
| 506 | (not (nnmail-within-headers-p))))) | |
| 507 | (when found | |
| 508 | (nnmail-search-unix-mail-delim-backward)))) | |
| 509 | ||
| 510 | (defun nnfolder-delete-mail (&optional leave-delim) | |
| 511 | "Delete the message that point is in. | |
| 512 | If optional argument LEAVE-DELIM is t, then mailbox delimiter is not | |
| 513 | deleted. Point is left where the deleted region was." | |
| 514 | (delete-region | |
| 515 | (save-excursion | |
| 516 | (forward-line 1) ; in case point is at beginning of message already | |
| 517 | (nnmail-search-unix-mail-delim-backward) | |
| 518 | (if leave-delim (progn (forward-line 1) (point)) | |
| 519 | (point))) | |
| 520 | (progn | |
| 521 | (forward-line 1) | |
| 522 | (if (nnmail-search-unix-mail-delim) | |
| 523 | (point) | |
| 524 | (point-max))))) | |
| eec82323 LMI |
525 | |
| 526 | (defun nnfolder-possibly-change-group (group &optional server dont-check) | |
| 527 | ;; Change servers. | |
| 528 | (when (and server | |
| 529 | (not (nnfolder-server-opened server))) | |
| 530 | (nnfolder-open-server server)) | |
| 531 | (unless (gnus-buffer-live-p nnfolder-current-buffer) | |
| 532 | (setq nnfolder-current-buffer nil | |
| 533 | nnfolder-current-group nil)) | |
| 534 | ;; Change group. | |
| 535 | (when (and group | |
| 536 | (not (equal group nnfolder-current-group))) | |
| ddcfd8de KH |
537 | (let ((file-name-coding-system 'binary) |
| 538 | (pathname-coding-system 'binary)) | |
| 58724016 KH |
539 | (nnmail-activate 'nnfolder) |
| 540 | (when (and (not (assoc group nnfolder-group-alist)) | |
| 541 | (not (file-exists-p | |
| 542 | (nnfolder-group-pathname group)))) | |
| 543 | ;; The group doesn't exist, so we create a new entry for it. | |
| 544 | (push (list group (cons 1 0)) nnfolder-group-alist) | |
| 545 | (nnmail-save-active nnfolder-group-alist nnfolder-active-file)) | |
| a8151ef7 | 546 | |
| 58724016 | 547 | (if dont-check |
| a8151ef7 LMI |
548 | (setq nnfolder-current-group group |
| 549 | nnfolder-current-buffer nil) | |
| 58724016 KH |
550 | (let (inf file) |
| 551 | ;; If we have to change groups, see if we don't already have the | |
| 552 | ;; folder in memory. If we do, verify the modtime and destroy | |
| 553 | ;; the folder if needed so we can rescan it. | |
| a8151ef7 LMI |
554 | (setq nnfolder-current-buffer |
| 555 | (nth 1 (assoc group nnfolder-buffer-alist))) | |
| 556 | ||
| 58724016 KH |
557 | ;; If the buffer is not live, make sure it isn't in the alist. If it |
| 558 | ;; is live, verify that nobody else has touched the file since last | |
| 559 | ;; time. | |
| 560 | (when (and nnfolder-current-buffer | |
| 561 | (not (gnus-buffer-live-p nnfolder-current-buffer))) | |
| 562 | (setq nnfolder-buffer-alist (delq inf nnfolder-buffer-alist) | |
| 563 | nnfolder-current-buffer nil)) | |
| a8151ef7 | 564 | |
| 58724016 | 565 | (setq nnfolder-current-group group) |
| a8151ef7 | 566 | |
| 58724016 | 567 | (when (or (not nnfolder-current-buffer) |
| 6748645f LMI |
568 | (not (verify-visited-file-modtime |
| 569 | nnfolder-current-buffer))) | |
| 58724016 KH |
570 | (save-excursion |
| 571 | (setq file (nnfolder-group-pathname group)) | |
| 572 | ;; See whether we need to create the new file. | |
| 573 | (unless (file-exists-p file) | |
| 574 | (gnus-make-directory (file-name-directory file)) | |
| 575 | (nnmail-write-region 1 1 file t 'nomesg)) | |
| 576 | (when (setq nnfolder-current-buffer (nnfolder-read-folder group)) | |
| 577 | (set-buffer nnfolder-current-buffer) | |
| 578 | (push (list group nnfolder-current-buffer) | |
| 579 | nnfolder-buffer-alist))))))))) | |
| eec82323 LMI |
580 | |
| 581 | (defun nnfolder-save-mail (group-art-list) | |
| 582 | "Called narrowed to an article." | |
| 583 | (let* (save-list group-art) | |
| 584 | (goto-char (point-min)) | |
| 585 | ;; The From line may have been quoted by movemail. | |
| 586 | (when (looking-at (concat ">" message-unix-mail-delimiter)) | |
| 587 | (delete-char 1)) | |
| 588 | ;; This might come from somewhere else. | |
| 589 | (unless (looking-at message-unix-mail-delimiter) | |
| 590 | (insert "From nobody " (current-time-string) "\n") | |
| 591 | (goto-char (point-min))) | |
| eec82323 | 592 | (forward-line 1) |
| 6748645f LMI |
593 | ;; Quote subsequent "From " lines in the header. |
| 594 | (while (looking-at message-unix-mail-delimiter) | |
| 595 | (delete-region (point) (+ (point) 4)) | |
| 596 | (insert "X-From-Line:") | |
| 597 | (forward-line 1)) | |
| 598 | ;; Quote all "From " lines in the article. | |
| eec82323 LMI |
599 | (let (case-fold-search) |
| 600 | (while (re-search-forward "^From " nil t) | |
| 601 | (beginning-of-line) | |
| 602 | (insert "> "))) | |
| 603 | (setq save-list group-art-list) | |
| 604 | (nnmail-insert-lines) | |
| 605 | (nnmail-insert-xref group-art-list) | |
| 606 | (run-hooks 'nnmail-prepare-save-mail-hook) | |
| 607 | (run-hooks 'nnfolder-prepare-save-mail-hook) | |
| 608 | ||
| 609 | ;; Insert the mail into each of the destination groups. | |
| 610 | (while (setq group-art (pop group-art-list)) | |
| 611 | ;; Kill any previous newsgroup markers. | |
| 612 | (goto-char (point-min)) | |
| 613 | (search-forward "\n\n" nil t) | |
| 614 | (forward-line -1) | |
| 615 | (while (search-backward (concat "\n" nnfolder-article-marker) nil t) | |
| 616 | (delete-region (1+ (point)) (progn (forward-line 2) (point)))) | |
| 617 | ||
| 618 | ;; Insert the new newsgroup marker. | |
| 619 | (nnfolder-insert-newsgroup-line group-art) | |
| 620 | ||
| 621 | (save-excursion | |
| 622 | (let ((beg (point-min)) | |
| 623 | (end (point-max)) | |
| 624 | (obuf (current-buffer))) | |
| 625 | (nnfolder-possibly-change-folder (car group-art)) | |
| 626 | (let ((buffer-read-only nil)) | |
| 6748645f | 627 | (nnfolder-normalize-buffer) |
| eec82323 LMI |
628 | (insert-buffer-substring obuf beg end))))) |
| 629 | ||
| 630 | ;; Did we save it anywhere? | |
| 631 | save-list)) | |
| 632 | ||
| 6748645f LMI |
633 | (defun nnfolder-normalize-buffer () |
| 634 | "Make sure there are two newlines at the end of the buffer." | |
| 635 | (goto-char (point-max)) | |
| 636 | (skip-chars-backward "\n") | |
| 637 | (delete-region (point) (point-max)) | |
| 638 | (insert "\n\n")) | |
| 639 | ||
| eec82323 LMI |
640 | (defun nnfolder-insert-newsgroup-line (group-art) |
| 641 | (save-excursion | |
| 642 | (goto-char (point-min)) | |
| 643 | (when (search-forward "\n\n" nil t) | |
| 644 | (forward-char -1) | |
| 645 | (insert (format (concat nnfolder-article-marker "%d %s\n") | |
| 646 | (cdr group-art) (current-time-string)))))) | |
| 647 | ||
| 648 | (defun nnfolder-active-number (group) | |
| 649 | ;; Find the next article number in GROUP. | |
| 650 | (let ((active (cadr (assoc group nnfolder-group-alist)))) | |
| 651 | (if active | |
| 652 | (setcdr active (1+ (cdr active))) | |
| 653 | ;; This group is new, so we create a new entry for it. | |
| 654 | ;; This might be a bit naughty... creating groups on the drop of | |
| 655 | ;; a hat, but I don't know... | |
| 656 | (push (list group (setq active (cons 1 1))) | |
| 657 | nnfolder-group-alist)) | |
| 658 | (cdr active))) | |
| 659 | ||
| 660 | (defun nnfolder-possibly-change-folder (group) | |
| 661 | (let ((inf (assoc group nnfolder-buffer-alist))) | |
| 662 | (if (and inf | |
| 663 | (gnus-buffer-live-p (cadr inf))) | |
| 664 | (set-buffer (cadr inf)) | |
| 665 | (when inf | |
| 666 | (setq nnfolder-buffer-alist (delq inf nnfolder-buffer-alist))) | |
| 667 | (when nnfolder-group-alist | |
| 668 | (nnmail-save-active nnfolder-group-alist nnfolder-active-file)) | |
| 669 | (push (list group (nnfolder-read-folder group)) | |
| 670 | nnfolder-buffer-alist)))) | |
| 671 | ||
| 672 | ;; This method has a problem if you've accidentally let the active list get | |
| 673 | ;; out of sync with the files. This could happen, say, if you've | |
| 674 | ;; accidentally gotten new mail with something other than Gnus (but why | |
| 675 | ;; would _that_ ever happen? :-). In that case, we will be in the middle of | |
| 676 | ;; processing the file, ready to add new X-Gnus article number markers, and | |
| 677 | ;; we'll run across a message with no ID yet - the active list _may_not_ be | |
| 678 | ;; ready for us yet. | |
| 679 | ||
| 680 | ;; To handle this, I'm modifying this routine to maintain the maximum ID seen | |
| 681 | ;; so far, and when we hit a message with no ID, we will _manually_ scan the | |
| 682 | ;; rest of the message looking for any more, possibly higher IDs. We'll | |
| 683 | ;; assume the maximum that we find is the highest active. Note that this | |
| 684 | ;; shouldn't cost us much extra time at all, but will be a lot less | |
| 685 | ;; vulnerable to glitches between the mbox and the active file. | |
| 686 | ||
| 687 | (defun nnfolder-read-folder (group) | |
| 688 | (let* ((file (nnfolder-group-pathname group)) | |
| 689 | (buffer (set-buffer (nnheader-find-file-noselect file)))) | |
| 690 | (if (equal (cadr (assoc group nnfolder-scantime-alist)) | |
| 691 | (nth 5 (file-attributes file))) | |
| 692 | ;; This looks up-to-date, so we don't do any scanning. | |
| 6748645f LMI |
693 | (if (file-exists-p file) |
| 694 | buffer | |
| 695 | (push (list group buffer) nnfolder-buffer-alist) | |
| 696 | (set-buffer-modified-p t) | |
| 697 | (save-buffer)) | |
| eec82323 LMI |
698 | ;; Parse the damn thing. |
| 699 | (save-excursion | |
| 700 | (nnmail-activate 'nnfolder) | |
| 701 | ;; Read in the file. | |
| 702 | (let ((delim (concat "^" message-unix-mail-delimiter)) | |
| 703 | (marker (concat "\n" nnfolder-article-marker)) | |
| 704 | (number "[0-9]+") | |
| 705 | (active (or (cadr (assoc group nnfolder-group-alist)) | |
| 706 | (cons 1 0))) | |
| 707 | (scantime (assoc group nnfolder-scantime-alist)) | |
| 708 | (minid (lsh -1 -1)) | |
| 709 | maxid start end newscantime | |
| 710 | buffer-read-only) | |
| 711 | (buffer-disable-undo (current-buffer)) | |
| 712 | (setq maxid (cdr active)) | |
| 713 | (goto-char (point-min)) | |
| 714 | ||
| 715 | ;; Anytime the active number is 1 or 0, it is suspect. In that | |
| 716 | ;; case, search the file manually to find the active number. Or, | |
| 717 | ;; of course, if we're being paranoid. (This would also be the | |
| 718 | ;; place to build other lists from the header markers, such as | |
| 719 | ;; expunge lists, etc., if we ever desired to abandon the active | |
| 720 | ;; file entirely for mboxes.) | |
| 721 | (when (or nnfolder-ignore-active-file | |
| 722 | (< maxid 2)) | |
| 723 | (while (and (search-forward marker nil t) | |
| 724 | (re-search-forward number nil t)) | |
| 725 | (let ((newnum (string-to-number (match-string 0)))) | |
| 6748645f LMI |
726 | (if (nnmail-within-headers-p) |
| 727 | (setq maxid (max maxid newnum) | |
| 728 | minid (min minid newnum))))) | |
| eec82323 LMI |
729 | (setcar active (max 1 (min minid maxid))) |
| 730 | (setcdr active (max maxid (cdr active))) | |
| 731 | (goto-char (point-min))) | |
| 732 | ||
| 733 | ;; As long as we trust that the user will only insert unmarked mail | |
| 734 | ;; at the end, go to the end and search backwards for the last | |
| 735 | ;; marker. Find the start of that message, and begin to search for | |
| 736 | ;; unmarked messages from there. | |
| 737 | (when (not (or nnfolder-distrust-mbox | |
| 738 | (< maxid 2))) | |
| 739 | (goto-char (point-max)) | |
| 740 | (unless (re-search-backward marker nil t) | |
| 741 | (goto-char (point-min))) | |
| 742 | (when (nnmail-search-unix-mail-delim) | |
| 743 | (goto-char (point-min)))) | |
| 744 | ||
| 745 | ;; Keep track of the active number on our own, and insert it back | |
| 746 | ;; into the active list when we're done. Also, prime the pump to | |
| 747 | ;; cut down on the number of searches we do. | |
| 748 | (unless (nnmail-search-unix-mail-delim) | |
| 749 | (goto-char (point-max))) | |
| 750 | (setq end (point-marker)) | |
| 751 | (while (not (= end (point-max))) | |
| 752 | (setq start (marker-position end)) | |
| 753 | (goto-char end) | |
| 754 | ;; There may be more than one "From " line, so we skip past | |
| 755 | ;; them. | |
| 756 | (while (looking-at delim) | |
| 757 | (forward-line 1)) | |
| 758 | (set-marker end (if (nnmail-search-unix-mail-delim) | |
| 759 | (point) | |
| 760 | (point-max))) | |
| 761 | (goto-char start) | |
| 762 | (when (not (search-forward marker end t)) | |
| 763 | (narrow-to-region start end) | |
| 764 | (nnmail-insert-lines) | |
| 765 | (nnfolder-insert-newsgroup-line | |
| 766 | (cons nil (nnfolder-active-number nnfolder-current-group))) | |
| 767 | (widen))) | |
| 768 | ||
| 769 | (set-marker end nil) | |
| 770 | ;; Make absolutely sure that the active list reflects reality! | |
| 771 | (nnmail-save-active nnfolder-group-alist nnfolder-active-file) | |
| 772 | ;; Set the scantime for this group. | |
| 773 | (setq newscantime (visited-file-modtime)) | |
| 774 | (if scantime | |
| 775 | (setcdr scantime (list newscantime)) | |
| 776 | (push (list nnfolder-current-group newscantime) | |
| 777 | nnfolder-scantime-alist)) | |
| 778 | (current-buffer)))))) | |
| 779 | ||
| 780 | ;;;###autoload | |
| 781 | (defun nnfolder-generate-active-file () | |
| 782 | "Look for mbox folders in the nnfolder directory and make them into groups." | |
| 783 | (interactive) | |
| 784 | (nnmail-activate 'nnfolder) | |
| 785 | (let ((files (directory-files nnfolder-directory)) | |
| 786 | file) | |
| 787 | (while (setq file (pop files)) | |
| 788 | (when (and (not (backup-file-name-p file)) | |
| 789 | (message-mail-file-mbox-p | |
| 790 | (nnheader-concat nnfolder-directory file))) | |
| 791 | (let ((oldgroup (assoc file nnfolder-group-alist))) | |
| 792 | (if oldgroup | |
| 793 | (nnheader-message 5 "Refreshing group %s..." file) | |
| 794 | (nnheader-message 5 "Adding group %s..." file)) | |
| 03378294 RS |
795 | (if oldgroup |
| 796 | (setq nnfolder-group-alist | |
| 797 | (delq oldgroup (copy-sequence nnfolder-group-alist)))) | |
| eec82323 LMI |
798 | (push (list file (cons 1 0)) nnfolder-group-alist) |
| 799 | (nnfolder-possibly-change-folder file) | |
| 800 | (nnfolder-possibly-change-group file) | |
| 801 | (nnfolder-close-group file)))) | |
| 6748645f | 802 | (nnheader-message 5 ""))) |
| eec82323 LMI |
803 | |
| 804 | (defun nnfolder-group-pathname (group) | |
| 805 | "Make pathname for GROUP." | |
| a8151ef7 | 806 | (setq group (gnus-encode-coding-string group nnmail-pathname-coding-system)) |
| eec82323 LMI |
807 | (let ((dir (file-name-as-directory (expand-file-name nnfolder-directory)))) |
| 808 | ;; If this file exists, we use it directly. | |
| 809 | (if (or nnmail-use-long-file-names | |
| 810 | (file-exists-p (concat dir group))) | |
| 811 | (concat dir group) | |
| 812 | ;; If not, we translate dots into slashes. | |
| 813 | (concat dir (nnheader-replace-chars-in-string group ?. ?/))))) | |
| 814 | ||
| 815 | (defun nnfolder-save-buffer () | |
| 816 | "Save the buffer." | |
| 817 | (when (buffer-modified-p) | |
| 818 | (run-hooks 'nnfolder-save-buffer-hook) | |
| a8151ef7 | 819 | (gnus-make-directory (file-name-directory (buffer-file-name))) |
| eec82323 LMI |
820 | (save-buffer))) |
| 821 | ||
| 822 | (provide 'nnfolder) | |
| 823 | ||
| 824 | ;;; nnfolder.el ends here |