1 ;;; elmo.el -- Elisp Library for Message Orchestration
3 ;; Copyright (C) 1998,1999,2000 Yuuichi Teranishi <teranisi@gohome.org>
5 ;; Author: Yuuichi Teranishi <teranisi@gohome.org>
6 ;; Keywords: mail, net news
8 ;; This file is part of ELMO (Elisp Library for Message Orchestration).
10 ;; This program 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)
15 ;; This program 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.
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.
34 (require 'elmo-version) ; reduce recursive-load-depth
39 (eval-when-compile (require 'cl))
41 (if (or (featurep 'dbm)
44 (featurep 'berkeley-db))
45 (require 'elmo-database))
47 (defcustom elmo-message-fetch-threshold 30000
52 (defcustom elmo-message-fetch-confirm t
53 "Confirm fetching if message size is larger than `elmo-fetch-threshold'.
54 Otherwise, entire fetching of the message is aborted without confirmation."
58 (defcustom elmo-folder-update-threshold 500
63 (defcustom elmo-folder-update-confirm t
64 "Confirm if update number exceeds `elmo-folder-update-threshold'."
69 (defvar elmo-folder-type-alist nil)
71 (defvar elmo-newsgroups-hashtb nil)
73 (elmo-define-error 'elmo-error "Error" 'error)
74 (elmo-define-error 'elmo-open-error "Cannot open" 'elmo-error)
75 (elmo-define-error 'elmo-authenticate-error "Login failed" 'elmo-open-error)
76 (elmo-define-error 'elmo-imap4-bye-error "IMAP4 BYE response" 'elmo-open-error)
78 (defun elmo-define-folder (prefix backend)
80 If a folder name begins with PREFIX, use BACKEND."
81 (let ((pair (assq prefix elmo-folder-type-alist)))
85 (setcdr pair backend))
86 (setq elmo-folder-type-alist (cons (cons prefix backend)
87 elmo-folder-type-alist)))))
89 (defmacro elmo-folder-type (name)
90 "Get folder type from NAME string."
91 (` (and (stringp (, name))
92 (cdr (assoc (string-to-char (, name)) elmo-folder-type-alist)))))
95 ;; A elmo folder provides uniformed (orchestrated) access
96 ;; to the internet messages.
98 (luna-define-class elmo-folder () (type ; folder type symbol.
99 name ; orignal folder name string.
100 prefix ; prefix for folder name
101 path ; directory path for msgdb.
102 msgdb ; msgdb (may be nil).
103 killed-list ; killed list.
104 persistent ; non-nil if persistent.
105 message-modified ; message is modified.
106 mark-modified ; mark is modified.
108 (luna-define-internal-accessors 'elmo-folder))
110 (luna-define-generic elmo-folder-initialize (folder name)
111 ;; Initialize a FOLDER structure with NAME."
114 (defmacro elmo-folder-send (folder message &rest args)
115 "Let FOLDER receive the MESSAGE with ARGS."
116 (` (luna-send (, folder) (, message) (, folder) (,@ args))))
119 (defun elmo-make-folder (name &optional non-persistent)
120 "Make an ELMO folder structure specified by NAME.
121 If optional argument NON-PERSISTENT is non-nil, folder is treated as
123 (let ((type (elmo-folder-type name))
124 prefix split class folder original)
125 (setq original (elmo-string name))
128 (setq prefix (substring name 0 1))
129 (setq name (substring name 1)))
130 (setq type (intern (car (setq split (split-string name ":")))))
131 (setq name (substring name (+ 1 (length (car split)))))
132 (setq prefix (concat (car split) ":")))
133 (setq class (format "elmo-%s" (symbol-name type)))
134 (require (intern class))
135 (setq folder (luna-make-entity (intern (concat class "-folder"))
139 :persistent (not non-persistent)))
141 (elmo-folder-send folder 'elmo-folder-initialize name))))
143 (defmacro elmo-folder-msgdb (folder)
144 "Return the msgdb of FOLDER (on-demand loading)."
145 (` (or (elmo-folder-msgdb-internal (, folder))
146 (elmo-folder-set-msgdb-internal (, folder)
147 (elmo-msgdb-load (, folder))))))
149 (luna-define-generic elmo-folder-open (folder &optional load-msgdb)
150 "Open and setup (load saved status) FOLDER.
151 If optional LOAD-MSGDB is non-nil, msgdb is loaded.
152 (otherwise, msgdb is loaded on-demand)")
154 (luna-define-generic elmo-folder-open-internal (folder)
155 "Open FOLDER (without loading saved folder status).")
157 (luna-define-generic elmo-folder-check (folder)
158 "Check the FOLDER to obtain newest information at the next list operation.")
160 (luna-define-generic elmo-folder-commit (folder)
161 "Save current status of FOLDER.")
163 (luna-define-generic elmo-folder-close (folder)
164 "Close, save and clearnup FOLDER.")
166 (luna-define-generic elmo-folder-close-internal (folder)
167 "Close FOLDER (without saving folder status).")
169 (luna-define-generic elmo-folder-plugged-p (folder)
170 "Returns t if FOLDER is plugged.")
172 (luna-define-generic elmo-folder-set-plugged (folder plugged &optional add)
173 "Set FOLDER as plugged.")
175 (luna-define-generic elmo-folder-use-flag-p (folder)
176 "Returns t if FOLDER treats unread/important flag itself.")
178 (luna-define-generic elmo-folder-diff (folder &optional numbers)
180 If optional NUMBERS is set, it is used as current NUMBERS.
181 Otherwise, saved status for folder is used for comparison.
182 Return value is a cons cell of NEWS and MESSAGES.")
184 (luna-define-generic elmo-folder-status (folder)
185 "Returns a cons cell of (MAX-NUMBER . MESSAGES) in the FOLDER.")
187 (defun elmo-folder-list-messages (folder &optional visible-only)
188 "Return a list of message numbers contained in FOLDER.
189 If optional VISIBLE-ONLY is non-nil, killed messages are not listed."
190 (let ((list (elmo-folder-list-messages-internal folder visible-only))
191 (killed (elmo-folder-killed-list-internal folder))
196 ;; Not available, use current list.
199 (elmo-msgdb-get-number-alist (elmo-folder-msgdb folder)))))
200 (elmo-living-messages numbers killed)))
202 (defun elmo-folder-list-unreads (folder unread-marks)
203 "Return a list of unread message numbers contained in FOLDER.
204 UNREAD-MARKS is the unread marks."
205 (let ((list (elmo-folder-list-unreads-internal folder
209 ;; Not available, use current mark.
214 (if (member (cadr x) unread-marks)
216 (elmo-msgdb-get-mark-alist (elmo-folder-msgdb folder)))))))
218 (defun elmo-folder-list-importants (folder important-mark)
219 "Returns a list of important message numbers contained in FOLDER.
220 IMPORTANT-MARK is the important mark."
221 (let ((list (elmo-folder-list-importants-internal folder important-mark)))
224 ;; Not available, use current mark.
229 (if (string= (cadr x) important-mark)
231 (elmo-msgdb-get-mark-alist (elmo-folder-msgdb folder)))))))
233 (luna-define-generic elmo-folder-list-messages-internal (folder &optional
235 ;; Return a list of message numbers contained in FOLDER.
236 ;; Return t if the message list is not available.
239 (luna-define-generic elmo-folder-list-unreads-internal (folder
241 &optional mark-alist)
242 ;; Return a list of unread message numbers contained in FOLDER.
243 ;; If optional MARK-ALIST is set, it is used as mark-alist.
244 ;; Return t if this feature is not available.
247 (luna-define-generic elmo-folder-list-importants-internal (folder
249 ;; Return a list of important message numbers contained in FOLDER.
250 ;; Return t if this feature is not available.
253 (luna-define-generic elmo-folder-list-subfolders (folder &optional one-level)
254 "Returns a list of subfolders contained in FOLDER.
255 If optional argument ONE-LEVEL is non-nil, only children of FOLDER is returned.
256 (a folder which have children is returned as a list)
257 Otherwise, all descendent folders are returned.")
259 (luna-define-generic elmo-folder-have-subfolder-p (folder)
260 "Return non-nil when FOLDER has subfolders.")
262 (luna-define-generic elmo-folder-exists-p (folder)
263 "Returns non-nil when FOLDER exists.")
265 (luna-define-generic elmo-folder-creatable-p (folder)
266 "Returns non-nil when FOLDER is creatable.")
268 (luna-define-generic elmo-folder-writable-p (folder)
269 "Returns non-nil when FOLDER is writable.")
271 (luna-define-generic elmo-folder-persistent-p (folder)
272 "Return non-nil when FOLDER is persistent.")
274 (luna-define-generic elmo-folder-create (folder)
277 (luna-define-generic elmo-message-deletable-p (folder number)
278 "Returns non-nil when the message in the FOLDER with NUMBER is deletable.")
280 (luna-define-generic elmo-folder-delete (folder)
281 "Delete FOLDER completely.")
283 (luna-define-generic elmo-folder-rename (folder new-name)
284 "Rename FOLDER to NEW-NAME (string).")
286 (luna-define-generic elmo-folder-delete-messages (folder numbers)
288 FOLDER is the ELMO folder structure.
289 NUMBERS is a list of message numbers to be deleted.")
291 (luna-define-generic elmo-folder-search (folder condition &optional numbers)
292 "Search and return list of message numbers.
293 FOLDER is the ELMO folder structure.
294 CONDITION is a condition string for searching.
295 If optional argument NUMBERS is specified and is a list of message numbers,
296 messages are searched from the list.")
298 (luna-define-generic elmo-folder-msgdb-create
299 (folder numbers new-mark already-mark seen-mark important-mark seen-list)
300 "Create a message database (implemented in each backends).
301 FOLDER is the ELMO folder structure.
302 NUMBERS is a list of message numbers to create msgdb.
303 NEW-MARK, ALREADY-MARK, SEEN-MARK, and IMPORTANT-MARK are mark string for
304 new message, unread but cached message, read message and important message.
305 SEEN-LIST is a list of message-id string which should be treated as read.")
307 (luna-define-generic elmo-folder-unmark-important (folder numbers)
308 "Un-mark messages as important.
309 FOLDER is the ELMO folder structure.
310 NUMBERS is a list of message numbers to be processed.")
312 (luna-define-generic elmo-folder-mark-as-important (folder numbers)
313 "Mark messages as important.
314 FOLDER is the ELMO folder structure.
315 NUMBERS is a list of message numbers to be processed.")
317 (luna-define-generic elmo-folder-unmark-read (folder numbers)
318 "Un-mark messages as read.
319 FOLDER is the ELMO folder structure.
320 NUMBERS is a list of message numbers to be processed.")
322 (luna-define-generic elmo-folder-mark-as-read (folder numbers)
323 "Mark messages as read.
324 FOLDER is the ELMO folder structure.
325 NUMBERS is a list of message numbers to be processed.")
327 (luna-define-generic elmo-folder-append-buffer (folder unread &optional number)
328 "Append current buffer as a new message.
329 FOLDER is the destination folder(ELMO folder structure).
330 If UNREAD is non-nil, message is appended as unread.
331 If optional argument NUMBER is specified, the new message number is set
334 (luna-define-generic elmo-folder-append-messages (folder
340 "Append messages from folder.
341 FOLDER is the ELMO folder structure.
342 Caller should make sure FOLDER is `writable'.
343 (Can be checked with `elmo-folder-writable-p').
344 SRC-FOLDER is the source ELMO folder structure.
345 NUMBERS is the message numbers to be appended in the SRC-FOLDER.
346 UNREAD-MARKS is a list of unread mark string.
347 If second optional argument SAME-NUMBER is specified,
348 message number is preserved (if possible).")
350 (luna-define-generic elmo-folder-pack-numbers (folder)
351 "Pack message numbers of FOLDER.")
353 (luna-define-generic elmo-folder-update-number (folder)
354 "Update number of FOLDER.")
356 (luna-define-generic elmo-folder-diff-async (folder)
357 "Get diff of FOLDER asynchronously.")
359 (luna-define-generic elmo-folder-expand-msgdb-path (folder)
360 "Expand path for FOLDER.")
362 (luna-define-generic elmo-folder-get-primitive-list (folder)
363 "Get primitive folder structure list contained in FOLDER.")
365 (luna-define-generic elmo-folder-contains-type (folder type)
366 "Returns t if FOLDER contains TYPE.")
368 (luna-define-generic elmo-folder-local-p (folder)
369 "Returns t if FOLDER is local.")
371 (luna-define-generic elmo-folder-message-file-p (folder)
372 "Returns t if all messages in the FOLDER are files.")
375 (luna-define-generic elmo-message-use-cache-p (folder number)
376 "Returns t if the message in the FOLDER with NUMBER uses cache.")
378 (luna-define-generic elmo-message-file-name (folder number)
379 "Return the file name of a message specified by FOLDER and NUMBER.")
383 ;;; Use original file
384 (luna-define-generic elmo-folder-message-file-number-p (folder)
385 "Return t if the file name in the FOLDER is the message number.")
387 (luna-define-generic elmo-folder-message-file-directory (folder)
388 "Return the directory of the message files of FOLDER.")
390 ;;; Use temporary file
391 (luna-define-generic elmo-folder-message-make-temp-file-p (folder)
392 "Return t if the messages in the FOLDER makes local temporary file.")
394 (luna-define-generic elmo-folder-message-make-temp-files (folder
398 "Make a new temporary files from the messages in the FOLDER with NUMBERS.
399 If START-NUMBER is specified, temporary files begin from the number.
400 Otherwise, same number is used for temporary files.
401 Return newly created temporary directory name which contains temporary files.")
403 (luna-define-generic elmo-message-file-p (folder number)
404 "Return t if message in the FOLDER with NUMBER is a file.")
406 (luna-define-generic elmo-find-fetch-strategy
407 (folder entity &optional ignore-cache)
408 ;; Returns the message fetching strategy suitable for the message.
409 ;; FOLDER is the ELMO folder structure.
410 ;; ENTITY is the overview entity of the message in the folder.
411 ;; If optional argument IGNORE-CACHE is non-nil, cache is ignored.
412 ;; Returned value is a elmo-fetch-strategy object.
413 ;; If return value is nil, message should not be nil.
416 (defmacro elmo-make-fetch-strategy (entireness
421 ;; Make elmo-message-fetching strategy.
422 ;; ENTIRENESS is 'entire or 'section.
423 ;; 'entire means fetch message entirely at once.
424 ;; 'section means fetch message section by section.
425 ;; If optional USE-CACHE is non-nil, existing cache is used and otherwise,
426 ;; existing cache is thrown away.
427 ;; If SAVE-CACHE is non-nil, fetched message is saved.
428 ;; CACHE-PATH is the cache path to be used as a message cache file.
429 (` (vector (, entireness)
430 (, use-cache) (, save-cache) (, cache-path))))
432 (defmacro elmo-fetch-strategy-entireness (strategy)
433 ;; Return entireness of STRATEGY.
434 (` (aref (, strategy) 0)))
436 (defmacro elmo-fetch-strategy-use-cache (strategy)
437 ;; Return use-cache of STRATEGY.
438 (` (aref (, strategy) 1)))
440 (defmacro elmo-fetch-strategy-save-cache (strategy)
441 ;; Return save-cache of STRATEGY.
442 (` (aref (, strategy) 2)))
444 (defmacro elmo-fetch-strategy-cache-path (strategy)
445 ;; Return cache-path of STRATEGY.
446 (` (aref (, strategy) 3)))
448 (luna-define-method elmo-find-fetch-strategy
449 ((folder elmo-folder) entity &optional ignore-cache)
450 (let (cache-file size message-id number)
451 (setq size (elmo-msgdb-overview-entity-get-size entity))
452 (setq message-id (elmo-msgdb-overview-entity-get-id entity))
453 (setq number (elmo-msgdb-overview-entity-get-number entity))
454 (setq cache-file (elmo-file-cache-get message-id))
456 (null (elmo-file-cache-status cache-file)))
457 ;; No cache or ignore-cache.
458 (if (and (not (elmo-folder-local-p folder))
459 elmo-message-fetch-threshold
461 (>= size elmo-message-fetch-threshold)
462 (or (not elmo-message-fetch-confirm)
463 (not (prog1 (y-or-n-p
464 (format "Fetch entire message(%dbytes)? "
467 ;; Don't fetch message at all.
469 ;; Don't use existing cache and fetch entire message at once.
470 (elmo-make-fetch-strategy
472 (elmo-message-use-cache-p folder number)
473 (elmo-file-cache-path cache-file)))
475 (if (not ignore-cache)
476 (elmo-make-fetch-strategy
478 ;; ...But ignore current section cache and re-fetch
480 (not (eq (elmo-file-cache-status cache-file) 'section))
482 (elmo-message-use-cache-p folder number)
483 (elmo-file-cache-path cache-file))))))
485 (luna-define-method elmo-folder-list-messages-internal
486 ((folder elmo-folder))
489 (luna-define-method elmo-folder-list-unreads-internal
490 ((folder elmo-folder) unread-marks &optional mark-alist)
493 (luna-define-method elmo-folder-list-importants-internal
494 ((folder elmo-folder) important-mark)
497 (defun elmo-folder-encache (folder numbers)
498 "Encache messages in the FOLDER with NUMBERS."
499 (dolist (number numbers)
500 (elmo-message-encache folder number)))
502 (defun elmo-message-encache (folder number)
503 "Encache message in the FOLDER with NUMBER."
506 (elmo-make-fetch-strategy 'entire
509 (elmo-file-cache-get-path
511 folder number 'message-id)))))
513 (luna-define-generic elmo-message-fetch (folder number strategy
518 "Fetch a message and return as a string.
519 FOLDER is the ELMO folder structure.
520 NUMBER is the number of the message in the FOLDER.
521 STRATEGY is the message fetching strategy.
522 If optional argument SECTION is specified, only the SECTION of the message
523 is fetched (if possible).
524 If second optional argument OUTBUF is specified, fetched message is
525 inserted to the buffer and returns t if fetch was ended successfully.
526 If third optional argument UNREAD is non-nil, message is not marked as read.
527 Returns non-nil if fetching was succeed.")
529 (luna-define-generic elmo-message-folder (folder number)
530 "Get primitive folder of the message.")
532 (luna-define-generic elmo-folder-process-crosspost (folder
535 "Process crosspost for FOLDER.
536 If NUMBER-ALIST is set, it is used as number-alist.
537 Return a cons cell of (NUMBER-CROSSPOSTS . NEW-MARK-ALIST).")
539 (luna-define-generic elmo-folder-append-msgdb (folder append-msgdb)
540 "Append APPEND-MSGDB to the current msgdb of the folder.")
542 (luna-define-method elmo-folder-open ((folder elmo-folder)
543 &optional load-msgdb)
544 (elmo-generic-folder-open folder load-msgdb))
546 (defun elmo-generic-folder-open (folder load-msgdb)
548 (elmo-folder-set-msgdb-internal folder (elmo-msgdb-load folder)))
549 (elmo-folder-set-killed-list-internal
551 (elmo-msgdb-killed-list-load (elmo-folder-msgdb-path folder)))
552 (elmo-folder-open-internal folder))
554 (luna-define-method elmo-folder-open-internal ((folder elmo-folder))
555 nil ; default is do nothing.
558 (luna-define-method elmo-folder-check ((folder elmo-folder))
559 nil) ; default is noop.
561 (luna-define-method elmo-folder-commit ((folder elmo-folder))
562 (elmo-generic-folder-commit folder))
564 (defun elmo-generic-folder-commit (folder)
565 (when (elmo-folder-persistent-p folder)
566 (when (elmo-folder-message-modified-internal folder)
567 (elmo-msgdb-overview-save
568 (elmo-folder-msgdb-path folder)
569 (elmo-msgdb-get-overview (elmo-folder-msgdb folder)))
570 (elmo-msgdb-number-save
571 (elmo-folder-msgdb-path folder)
572 (elmo-msgdb-get-number-alist (elmo-folder-msgdb folder)))
573 (elmo-folder-set-info-max-by-numdb
575 (elmo-msgdb-get-number-alist
576 (elmo-folder-msgdb folder)))
577 (elmo-folder-set-message-modified-internal folder nil)
578 (elmo-msgdb-killed-list-save
579 (elmo-folder-msgdb-path folder)
580 (elmo-folder-killed-list-internal folder)))
581 (when (elmo-folder-mark-modified-internal folder)
582 (elmo-msgdb-mark-save
583 (elmo-folder-msgdb-path folder)
584 (elmo-msgdb-get-mark-alist (elmo-folder-msgdb folder)))
585 (elmo-folder-set-mark-modified-internal folder nil))))
587 (luna-define-method elmo-folder-close-internal ((folder elmo-folder))
591 (luna-define-method elmo-folder-close ((folder elmo-folder))
592 (elmo-generic-folder-close folder)
593 (elmo-folder-close-internal folder))
595 (defun elmo-generic-folder-close (folder)
596 (elmo-folder-commit folder)
597 (elmo-folder-set-msgdb-internal folder nil)
598 (elmo-folder-set-killed-list-internal folder nil))
600 (luna-define-method elmo-folder-plugged-p ((folder elmo-folder))
601 t) ; default is plugged.
603 (luna-define-method elmo-folder-set-plugged ((folder elmo-folder) plugged
605 nil) ; default is do nothing.
607 (luna-define-method elmo-folder-use-flag-p ((folder elmo-folder))
608 nil) ; default is no flag.
610 (luna-define-method elmo-folder-persistent-p ((folder elmo-folder))
611 (elmo-folder-persistent-internal folder))
613 (luna-define-method elmo-folder-creatable-p ((folder elmo-folder))
614 t) ; default is creatable.
616 (luna-define-method elmo-folder-writable-p ((folder elmo-folder))
617 t) ; default is writable.
619 (luna-define-method elmo-folder-rename ((folder elmo-folder) new-name)
620 (let* ((new-folder (elmo-make-folder new-name)))
621 (unless (eq (elmo-folder-type-internal folder)
622 (elmo-folder-type-internal new-folder))
623 (error "Not same folder type"))
624 (if (or (file-exists-p (elmo-folder-msgdb-path new-folder))
625 (elmo-folder-exists-p new-folder))
626 (error "Already exists folder: %s" new-name))
627 (elmo-folder-send folder 'elmo-folder-rename-internal new-folder)
628 (elmo-msgdb-rename-path folder new-folder)))
630 (luna-define-method elmo-folder-pack-numbers ((folder elmo-folder))
631 nil) ; default is noop.
633 (luna-define-method elmo-folder-update-number ((folder elmo-folder))
634 nil) ; default is noop.
636 (luna-define-method elmo-folder-message-file-p ((folder elmo-folder))
637 nil) ; default is not file.
639 (luna-define-method elmo-folder-message-file-number-p ((folder elmo-folder))
640 nil) ; default is not number.
642 (luna-define-method elmo-folder-message-make-temp-file-p ((folder elmo-folder))
643 nil) ; default is not make temp file.
645 (luna-define-method elmo-message-file-name ((folder elmo-folder)
647 nil) ; default is no name.
649 (luna-define-method elmo-folder-local-p ((folder elmo-folder))
650 t) ; default is local.
652 (luna-define-method elmo-folder-have-subfolder-p ((folder elmo-folder))
656 ;; Folder info is a message number information cache (hashtable)
657 (defsubst elmo-folder-get-info (folder &optional hashtb)
658 "Return FOLDER info from HASHTB (default is `elmo-folder-info-hashtb')."
659 (elmo-get-hash-val (elmo-folder-name-internal folder)
660 (or hashtb elmo-folder-info-hashtb)))
662 (defun elmo-folder-set-info-hashtb (folder max numbers &optional new unread)
663 "Set FOLDER info (means MAX, NUMBERS, NEW and UNREAD)."
664 (let ((info (elmo-folder-get-info folder)))
666 (or new (setq new (nth 0 info)))
667 (or unread (setq unread (nth 1 info)))
668 (or numbers (setq numbers (nth 2 info)))
669 (or max (setq max (nth 3 info))))
670 (elmo-set-hash-val (elmo-folder-name-internal folder)
671 (list new unread numbers max)
672 elmo-folder-info-hashtb)))
674 (defun elmo-folder-set-info-max-by-numdb (folder msgdb-number)
675 "Set FOLDER info by MSGDB-NUMBER in msgdb."
676 (let ((num-db (sort (mapcar 'car msgdb-number) '<)))
677 (elmo-folder-set-info-hashtb
679 (or (nth (max 0 (1- (length num-db))) num-db) 0)
680 nil ;;(length num-db)
683 (defun elmo-folder-get-info-max (folder)
684 "Return max number of FODLER from folder info."
685 (nth 3 (elmo-folder-get-info folder)))
687 (defun elmo-folder-get-info-length (folder)
688 "Return length of FODLER from folder info."
689 (nth 2 (elmo-folder-get-info folder)))
691 (defun elmo-folder-get-info-unread (folder)
692 "Return unread of FODLER from folder info."
693 (nth 1 (elmo-folder-get-info folder)))
695 (defun elmo-folder-info-make-hashtb (info-alist hashtb)
696 "Setup folder info hashtable by INFO-ALIST on HASHTB."
697 (let* ((hashtb (or hashtb
698 (elmo-make-hash (length info-alist)))))
701 (let ((info (cadr x)))
702 (and (intern-soft (car x) hashtb)
703 (elmo-set-hash-val (car x)
704 (list (nth 2 info) ;; new
705 (nth 3 info) ;; unread
706 (nth 1 info) ;; length
710 (setq elmo-folder-info-hashtb hashtb)))
712 (defsubst elmo-strict-folder-diff (folder)
713 "Return folder diff information strictly from FOLDER."
714 (let* ((dir (elmo-folder-msgdb-path folder))
715 (nalist (elmo-msgdb-get-number-alist (elmo-folder-msgdb folder)))
716 (in-db (sort (mapcar 'car nalist) '<))
717 (in-folder (elmo-folder-list-messages folder))
718 append-list delete-list diff)
719 (cons (if (equal in-folder in-db)
721 (setq diff (elmo-list-diff
725 (setq append-list (car diff))
726 (setq delete-list (cadr diff))
730 (- 0 (length delete-list))
732 (length in-folder))))
734 (luna-define-method elmo-folder-diff ((folder elmo-folder)
736 (elmo-generic-folder-diff folder numbers))
738 (defun elmo-generic-folder-diff (folder numbers)
739 (if (elmo-string-match-member (elmo-folder-name-internal folder)
740 elmo-strict-diff-folder-list)
741 (elmo-strict-folder-diff folder)
742 (let ((cached-in-db-max (elmo-folder-get-info-max folder))
743 (in-folder (elmo-folder-status folder))
748 (setq in-db-max (or (nth (max 0 (1- (length numbers))) numbers)
750 (if (not cached-in-db-max)
751 (let ((number-list (mapcar 'car
752 (elmo-msgdb-number-load
753 (elmo-folder-msgdb-path folder)))))
755 (setq in-db (sort number-list '<))
756 (setq in-db-max (or (nth (max 0 (1- (length in-db))) in-db)
758 (elmo-folder-set-info-hashtb folder in-db-max nil))
759 (setq in-db-max cached-in-db-max)))
760 (setq unsync (if (and in-db
762 (- (car in-folder) in-db-max)
766 (if (null (car in-folder))
768 (setq messages (cdr in-folder))
769 (if (and unsync messages (> unsync messages))
770 (setq unsync messages))
771 (cons (or unsync 0) (or messages 0)))))
773 (defvar elmo-folder-diff-async-callback nil)
774 (defvar elmo-folder-diff-async-callback-data nil)
776 (luna-define-method elmo-folder-diff-async ((folder elmo-folder))
777 (and elmo-folder-diff-async-callback
778 (funcall elmo-folder-diff-async-callback
780 (elmo-folder-diff folder))))
782 (luna-define-method elmo-folder-get-primitive-list ((folder elmo-folder))
785 (luna-define-method elmo-folder-contains-type ((folder elmo-folder) type)
786 (eq (elmo-folder-type-internal folder) type))
788 (luna-define-method elmo-folder-append-messages ((folder elmo-folder)
794 (elmo-generic-folder-append-messages folder src-folder numbers
795 unread-marks same-number))
797 (defun elmo-generic-folder-append-messages (folder src-folder numbers
798 unread-marks same-number)
799 (let (unseen seen-list succeed-numbers failure)
805 (elmo-message-fetch src-folder (car numbers)
806 (elmo-make-fetch-strategy
810 (unless (eq (buffer-size) 0)
811 (elmo-folder-append-buffer
813 (setq unseen (member (elmo-message-mark
814 src-folder (car numbers))
816 (if same-number (car numbers)))))
817 (error (setq failure t)))
818 ;; FETCH & APPEND finished
820 (if unseen (setq seen-list (cons
822 src-folder (car numbers)
825 (setq succeed-numbers (cons (car numbers) succeed-numbers)))
826 (setq numbers (cdr numbers)))
827 (if (and seen-list (elmo-folder-persistent-p folder))
828 (elmo-msgdb-seen-save (elmo-folder-msgdb-path folder)
829 (nconc (elmo-msgdb-seen-load
830 (elmo-folder-msgdb-path folder))
834 ;; Arguments should be reduced.
835 (defun elmo-folder-move-messages (src-folder msgs dst-folder
836 &optional msgdb all done
843 (let* ((messages msgs)
845 (all-msg-num (or all len))
846 (done-msg-num (or done 0))
847 (progress-message (if no-delete
848 "Copying messages..."
849 "Moving messages..."))
851 (unless (eq dst-folder 'null)
852 ;; src is already opened.
854 (elmo-folder-open-internal dst-folder)
855 (unless (setq succeeds (elmo-folder-append-messages dst-folder
860 (error "move: append message to %s failed"
861 (elmo-folder-name-internal dst-folder)))
862 (elmo-folder-close dst-folder))
863 (when (and (elmo-folder-persistent-p dst-folder)
865 ;; Save to seen list.
866 (let* ((dir (elmo-folder-msgdb-path dst-folder))
867 (seen-list (elmo-msgdb-seen-load dir)))
869 (elmo-msgdb-add-msgs-to-seen-list
870 msgs (elmo-folder-msgdb src-folder)
871 unread-marks seen-list))
872 (elmo-msgdb-seen-save dir seen-list))))
874 (> all-msg-num elmo-display-progress-threshold))
875 (elmo-display-progress
876 'elmo-folder-move-messages progress-message
877 (/ (* done-msg-num 100) all-msg-num)))
878 (if (and (not no-delete) succeeds)
880 (if (not no-delete-info)
881 (message "Cleaning up src folder..."))
882 (if (and (elmo-folder-delete-messages src-folder succeeds)
883 (elmo-msgdb-delete-msgs
884 (elmo-folder-msgdb src-folder) succeeds))
886 (message "move: delete messages from %s failed."
887 (elmo-folder-name-internal src-folder))
890 (not no-delete-info))
891 (message "Cleaning up src folder...done"))
895 (message "Copying messages...done")
898 (message "No message was moved.")
899 (message "Moving messages failed.")
903 (defun elmo-folder-msgdb-path (folder)
904 "Return the msgdb path for FOLDER."
905 (or (elmo-folder-path-internal folder)
906 (elmo-folder-set-path-internal
908 (elmo-folder-expand-msgdb-path folder))))
910 (defun elmo-message-mark (folder number)
911 "Get mark of the message.
912 FOLDER is the ELMO folder structure.
913 NUMBER is a number of the message."
914 (cadr (assq number (elmo-msgdb-get-mark-alist (elmo-folder-msgdb folder)))))
916 (defun elmo-folder-list-messages-mark-match (folder mark-regexp)
917 "List messages in the FOLDER which have a mark that matches MARK-REGEXP"
918 (let ((case-fold-search nil)
921 (dolist (elem (elmo-msgdb-get-mark-alist (elmo-folder-msgdb folder)))
922 (if (string-match mark-regexp (cadr elem))
923 (setq matched (cons (car elem) matched)))))
926 (defun elmo-message-field (folder number field)
927 "Get message field value in the msgdb.
928 FOLDER is the ELMO folder structure.
929 NUMBER is a number of the message.
930 FIELD is a symbol of the field."
932 (message-id (elmo-msgdb-overview-entity-get-id
933 (elmo-msgdb-overview-get-entity
934 number (elmo-folder-msgdb folder))))
935 (subject (elmo-msgdb-overview-entity-get-subject
936 (elmo-msgdb-overview-get-entity
937 number (elmo-folder-msgdb folder))))
938 (size (elmo-msgdb-overview-entity-get-size
939 (elmo-msgdb-overview-get-entity
940 number (elmo-folder-msgdb folder))))
941 (date (elmo-msgdb-overview-entity-get-date
942 (elmo-msgdb-overview-get-entity
943 number (elmo-folder-msgdb folder))))
944 (to (elmo-msgdb-overview-entity-get-to
945 (elmo-msgdb-overview-get-entity
946 number (elmo-folder-msgdb folder))))
947 (cc (elmo-msgdb-overview-entity-get-cc
948 (elmo-msgdb-overview-get-entity
949 number (elmo-folder-msgdb folder))))))
951 (defun elmo-message-set-mark (folder number mark)
952 "Set mark for the message in the FOLDER with NUMBER as MARK."
953 (elmo-msgdb-set-mark-alist
954 (elmo-folder-msgdb folder)
956 (elmo-msgdb-get-mark-alist (elmo-folder-msgdb folder))
959 (luna-define-method elmo-message-use-cache-p ((folder elmo-folder) number)
960 nil) ; default is not use cache.
962 (luna-define-method elmo-message-folder ((folder elmo-folder) number)
963 folder) ; default is folder
965 (luna-define-method elmo-folder-unmark-important ((folder elmo-folder) numbers)
968 (luna-define-method elmo-folder-mark-as-important ((folder elmo-folder)
972 (luna-define-method elmo-folder-unmark-read ((folder elmo-folder) numbers)
975 (luna-define-method elmo-folder-mark-as-read ((folder elmo-folder) numbers)
978 (luna-define-method elmo-folder-process-crosspost ((folder elmo-folder)
984 (defun elmo-generic-folder-append-msgdb (folder append-msgdb)
986 (let* ((number-alist (elmo-msgdb-get-number-alist append-msgdb))
987 (all-alist (copy-sequence (append
988 (elmo-msgdb-get-number-alist
989 (elmo-folder-msgdb folder))
996 (setq all-alist (delq (car cur) all-alist))
997 ;; same message id exists.
998 (if (setq pair (rassoc (cdr (car cur)) all-alist))
999 (setq to-be-deleted (nconc to-be-deleted (list (car pair)))))
1000 (setq cur (cdr cur)))
1001 ;; XXXX If caching is enabled, read-uncached mark should be set.
1002 (setq mark-alist (elmo-delete-if
1005 (memq (car x) to-be-deleted)))
1006 (elmo-msgdb-get-mark-alist append-msgdb)))
1007 (elmo-msgdb-set-mark-alist append-msgdb mark-alist)
1008 (elmo-folder-set-msgdb-internal folder
1010 (elmo-folder-msgdb folder)
1012 (length to-be-deleted))
1015 (luna-define-method elmo-folder-append-msgdb ((folder elmo-folder)
1017 (elmo-generic-folder-append-msgdb folder append-msgdb))
1019 (defun elmo-folder-confirm-appends (appends)
1020 (let ((len (length appends))
1022 (if (and (> len elmo-folder-update-threshold)
1023 elmo-folder-update-confirm)
1024 (if (y-or-n-p (format "Too many messages(%d). Continue? " len))
1026 (setq in elmo-folder-update-threshold)
1029 (setq in (read-from-minibuffer "Update number: "
1031 in (string-to-int in))
1034 (if (y-or-n-p (format "%d messages are disappeared. OK? "
1035 (max (- len in) 0)))
1037 (nthcdr (max (- len in) 0) appends))
1038 (if (and (> len elmo-folder-update-threshold)
1039 (not elmo-folder-update-confirm))
1040 (nthcdr (max (- len elmo-folder-update-threshold) 0) appends)
1043 (defun elmo-folder-synchronize (folder
1045 unread-uncached-mark ;"U"
1046 unread-cached-mark ;"!"
1047 read-uncached-mark ;"u"
1049 &optional ignore-msgdb)
1050 "Synchronize the folder data to the newest status.
1051 FOLDER is the ELMO folder structure.
1052 NEW-MARK, UNREAD-CACHED-MARK, READ-UNCACHED-MARK, and IMPORTANT-MARK
1053 are mark strings for new messages, unread but cached messages,
1054 read but not cached messages, and important messages.
1055 If optional IGNORE-MSGDB is non-nil, current msgdb is thrown away except
1056 read mark status. If IGNORE-MSGDB is 'visible-only, only visible messages
1057 are thrown away and synchronized.
1060 \(NEW-MSGDB DELETE-LIST CROSSED\)
1061 NEW-MSGDB is the newly appended msgdb.
1062 DELETE-LIST is a list of deleted message number.
1063 CROSSED is cross-posted message number."
1064 (let ((killed-list (elmo-folder-killed-list-internal folder))
1066 number-alist mark-alist
1067 old-msgdb diff diff-2 delete-list new-list new-msgdb mark
1068 seen-list crossed after-append)
1069 (setq old-msgdb (elmo-folder-msgdb folder))
1071 (setq seen-list (elmo-msgdb-seen-load (elmo-folder-msgdb-path folder)))
1072 (setq number-alist (elmo-msgdb-get-number-alist
1073 (elmo-folder-msgdb folder)))
1074 (setq mark-alist (elmo-msgdb-get-mark-alist
1075 (elmo-folder-msgdb folder)))
1078 (setq seen-list (nconc
1079 (elmo-msgdb-mark-alist-to-seen-list
1080 number-alist mark-alist
1081 (concat important-mark read-uncached-mark))
1083 ;; Make killed list as nil.
1084 (unless (eq ignore-msgdb 'visible-only)
1085 (elmo-folder-set-killed-list-internal folder nil))
1086 (elmo-folder-set-msgdb-internal folder
1087 (elmo-msgdb-clear))))
1088 (elmo-folder-check folder)
1091 (message "Checking folder diff...")
1092 ;; TODO: killed list is loaded in elmo-folder-open and
1093 ;; list-messages use internal killed-list-folder.
1094 (setq diff (elmo-list-diff (elmo-folder-list-messages
1096 (eq 'visible-only ignore-msgdb))
1097 (unless ignore-msgdb
1102 (message "Checking folder diff...done")
1103 (setq new-list (elmo-folder-confirm-appends (car diff)))
1105 (when (and (not (eq (length (car diff))
1107 (setq diff-2 (elmo-list-diff (car diff) new-list)))
1108 (elmo-msgdb-append-to-killed-list folder (car diff-2)))
1109 ;; Don't delete important marked messages.
1113 (and (setq mark (cadr (assq x mark-alist)))
1114 (string= mark important-mark)))
1115 ;; delete message list
1117 (if (or (equal diff '(nil nil))
1119 (and (eq (length (car diff)) 0)
1120 (eq (length (cadr diff)) 0)))
1122 (elmo-folder-update-number folder)
1123 (elmo-folder-process-crosspost folder)
1126 (if delete-list (elmo-msgdb-delete-msgs
1127 (elmo-folder-msgdb folder) delete-list))
1129 (setq new-msgdb (elmo-folder-msgdb-create
1132 new-mark unread-cached-mark
1133 read-uncached-mark important-mark
1135 (elmo-msgdb-change-mark (elmo-folder-msgdb folder)
1136 new-mark unread-uncached-mark)
1138 (if (elmo-folder-persistent-p folder)
1139 (setq seen-list (elmo-msgdb-seen-save
1140 (elmo-folder-msgdb-path folder) nil)))
1141 (setq before-append nil)
1142 (setq crossed (elmo-folder-append-msgdb folder new-msgdb))
1143 ;; process crosspost.
1144 ;; Return a cons cell of (NUMBER-CROSSPOSTS . NEW-MARK-ALIST).
1145 (elmo-folder-process-crosspost folder)
1146 (elmo-folder-set-message-modified-internal folder t)
1147 (elmo-folder-set-mark-modified-internal folder t)
1149 (list new-msgdb delete-list crossed))))
1151 ;; Resume to the original status.
1153 (elmo-folder-set-msgdb-internal folder old-msgdb))
1154 (elmo-folder-set-killed-list-internal folder killed-list)
1157 (defun elmo-folder-messages (folder)
1158 "Return number of messages in the FOLDER."
1160 (elmo-msgdb-get-number-alist
1161 (elmo-folder-msgdb folder))))
1164 (defun elmo-msgdb-search (folder condition msgdb)
1165 "Search messages which satisfy CONDITION from FOLDER with MSGDB."
1166 (let* ((condition (car (elmo-parse-search-condition condition)))
1167 (overview (elmo-msgdb-get-overview msgdb))
1168 (number-alist (elmo-msgdb-get-number-alist msgdb))
1169 (number-list (mapcar 'car number-alist))
1170 (length (length overview))
1173 (if (elmo-condition-find-key condition "body")
1174 (elmo-folder-search folder condition number-list)
1176 (if (elmo-msgdb-search-internal condition (car overview)
1180 (elmo-msgdb-overview-entity-get-number (car overview))
1183 (elmo-display-progress
1184 'elmo-msgdb-search "Searching..." (/ (* i 100) length))
1185 (setq overview (cdr overview)))
1186 (nreverse result))))
1188 (defun elmo-msgdb-load (folder)
1189 (message "Loading msgdb for %s..." (elmo-folder-name-internal folder))
1190 (let* ((path (elmo-folder-msgdb-path folder))
1191 (overview (elmo-msgdb-overview-load path))
1192 (msgdb (list overview
1193 (elmo-msgdb-number-load path)
1194 (elmo-msgdb-mark-load path)
1195 (elmo-msgdb-make-overview-hashtb overview))))
1196 (message "Loading msgdb for %s...done" (elmo-folder-name-internal folder))
1197 (elmo-folder-set-info-max-by-numdb folder
1198 (elmo-msgdb-get-number-alist msgdb))
1201 (defun elmo-msgdb-delete-path (folder)
1202 (let ((path (elmo-folder-msgdb-path folder)))
1203 (if (file-directory-p path)
1204 (elmo-delete-directory path t))))
1206 (defun elmo-msgdb-rename-path (old-folder new-folder)
1207 (let* ((old (directory-file-name (elmo-folder-msgdb-path old-folder)))
1208 (new (directory-file-name (elmo-folder-msgdb-path new-folder)))
1209 (new-dir (directory-file-name (file-name-directory new))))
1210 (if (not (file-directory-p old))
1212 (if (file-exists-p new)
1213 (error "Already exists directory: %s" new)
1214 (if (not (file-exists-p new-dir))
1215 (elmo-make-directory new-dir))
1216 (rename-file old new)))))
1218 (defun elmo-setup-subscribed-newsgroups (groups)
1219 "Setup subscribed newsgroups.
1220 GROUPS is a list of newsgroup name string.
1221 Return a hashtable for newsgroups."
1222 (let ((hashtb (or elmo-newsgroups-hashtb
1223 (setq elmo-newsgroups-hashtb
1224 (elmo-make-hash (length groups))))))
1225 (dolist (group groups)
1226 (or (elmo-get-hash-val group hashtb)
1227 (elmo-set-hash-val group nil hashtb)))
1228 (setq elmo-newsgroups-hashtb hashtb)))
1230 (defvar elmo-crosspost-message-alist-modified nil)
1231 (defun elmo-crosspost-message-alist-load ()
1232 "Load crosspost message alist."
1233 (setq elmo-crosspost-message-alist (elmo-crosspost-alist-load))
1234 (setq elmo-crosspost-message-alist-modified nil))
1236 (defun elmo-crosspost-message-alist-save ()
1237 "Save crosspost message alist."
1238 (when elmo-crosspost-message-alist-modified
1239 (let ((alist elmo-crosspost-message-alist)
1245 (not (intern-soft x elmo-newsgroups-hashtb)))
1246 (nth 1 (car alist))))
1248 (setcar (cdar alist) newsgroups)
1249 (setq elmo-crosspost-message-alist
1250 (delete (car alist) elmo-crosspost-message-alist)))
1251 (setq alist (cdr alist)))
1252 (elmo-crosspost-alist-save elmo-crosspost-message-alist)
1253 (setq elmo-crosspost-message-alist-modified nil))))
1255 (defun elmo-folder-make-temp-dir (folder)
1256 ;; Make a temporary directory for FOLDER.
1257 (let ((temp-dir (make-temp-name
1259 (file-name-as-directory (elmo-folder-msgdb-path folder))
1261 (elmo-make-directory temp-dir)
1265 "Initialize ELMO module."
1266 (elmo-crosspost-message-alist-load)
1267 (elmo-resque-obsolete-variables)
1268 (elmo-dop-queue-load))
1271 "Quit and cleanup ELMO."
1272 ; (setq elmo-newsgroups-hashtb nil)
1273 (elmo-crosspost-message-alist-save)
1274 ;; Not implemented yet.
1275 (let ((types elmo-folder-type-alist)
1280 (intern (format "elmo-%s-folder" (symbol-name (cdr (car types)))))))
1281 ;; Call all folder's `elmo-quit' method.
1283 (dolist (func (luna-class-find-functions class 'elmo-quit))
1284 (funcall func nil)))
1285 (setq types (cdr types)))))
1289 (elmo-define-folder ?% 'imap4)
1290 (elmo-define-folder ?- 'nntp)
1291 (elmo-define-folder ?\+ 'localdir)
1292 (elmo-define-folder ?\* 'multi)
1293 (elmo-define-folder ?\/ 'filter)
1294 (elmo-define-folder ?\$ 'archive)
1295 (elmo-define-folder ?& 'pop3)
1296 (elmo-define-folder ?= 'localnews)
1297 (elmo-define-folder ?| 'pipe)
1298 (elmo-define-folder ?. 'maildir)
1299 (elmo-define-folder ?' 'internal)
1300 (elmo-define-folder ?[ 'nmz)
1301 (elmo-define-folder ?@ 'shimbun)
1304 (product-provide (provide 'elmo) (require 'elmo-version))
1306 ;;; elmo.el ends here