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
49 :type '(choice (integer :tag "Threshold (bytes)")
50 (const :tag "No limitation" nil))
53 (defcustom elmo-message-fetch-confirm t
54 "If non-nil, confirm fetching if message size is larger than
55 `elmo-message-fetch-threshold'.
56 Otherwise, entire fetching of the message is aborted without confirmation."
60 (defcustom elmo-folder-update-threshold 500
62 :type '(choice (integer :tag "Number of messages")
63 (const :tag "No limitation" nil))
66 (defcustom elmo-folder-update-confirm t
67 "Confirm if update number exceeds `elmo-folder-update-threshold'."
71 (defvar elmo-message-displaying nil
72 "A global switch to indicate message is displaying or not.")
75 (defvar elmo-folder-type-alist nil)
77 (defvar elmo-newsgroups-hashtb nil)
79 (elmo-define-error 'elmo-error "Error" 'error)
80 (elmo-define-error 'elmo-open-error "Cannot open" 'elmo-error)
81 (elmo-define-error 'elmo-authenticate-error "Login failed" 'elmo-open-error)
82 (elmo-define-error 'elmo-imap4-bye-error "IMAP4 session was terminated" 'elmo-open-error)
86 (autoload 'elmo-dop-queue-flush "elmo-dop")
87 (autoload 'elmo-nntp-post "elmo-nntp")
88 (autoload 'elmo-global-flag-p "elmo-flag")
89 (autoload 'elmo-local-flag-p "elmo-flag")
90 (autoload 'elmo-global-flag-detach "elmo-flag")
91 (autoload 'elmo-global-flag-detach-messages "elmo-flag")
92 (autoload 'elmo-global-flag-set "elmo-flag")
93 (autoload 'elmo-get-global-flags "elmo-flag")
94 (autoload 'elmo-global-mark-migrate "elmo-flag")
95 (autoload 'elmo-folder-list-global-flag-messages "elmo-flag"))
97 (defun elmo-define-folder (prefix backend)
99 If a folder name begins with PREFIX, use BACKEND."
100 (let ((pair (assq prefix elmo-folder-type-alist)))
104 (setcdr pair backend))
105 (setq elmo-folder-type-alist (cons (cons prefix backend)
106 elmo-folder-type-alist)))))
108 (defmacro elmo-folder-type (name)
109 "Get folder type from NAME string."
110 `(and (stringp ,name)
111 (cdr (assoc (string-to-char ,name) elmo-folder-type-alist))))
114 ;; A elmo folder provides uniformed (orchestrated) access
115 ;; to the internet messages.
117 (luna-define-class elmo-folder () (type ; folder type symbol.
118 name ; orignal folder name string.
119 prefix ; prefix for folder name
120 path ; directory path for msgdb.
121 msgdb ; msgdb (may be nil).
122 killed-list ; killed list.
123 flag-table ; flag table.
124 persistent ; non-nil if persistent.
125 process-duplicates ; read or hide
126 biff ; folder for biff
127 handlers ; list of event handler.
129 (luna-define-internal-accessors 'elmo-folder))
131 (luna-define-generic elmo-folder-initialize (folder name)
132 ;; Initialize a FOLDER structure with NAME."
135 (defmacro elmo-folder-send (folder message &rest args)
136 "Let FOLDER receive the MESSAGE with ARGS."
137 (` (luna-send (, folder) (, message) (, folder) (,@ args))))
140 (defun elmo-make-folder (name &optional non-persistent)
141 "Make an ELMO folder structure specified by NAME.
142 If optional argument NON-PERSISTENT is non-nil, the folder msgdb is not saved."
143 (let ((type (elmo-folder-type name))
144 prefix split class folder original)
145 (setq original (elmo-string name))
148 (setq prefix (elmo-string (substring name 0 1)))
149 (setq name (elmo-string (substring name 1))))
150 (setq type (intern (car (setq split (split-string name ":")))))
151 (if (>= (length split) 2)
152 (setq name (substring name (+ 1 (length (car split)))))
153 (error "Error in folder name `%s'" original))
154 (setq prefix (concat (car split) ":")))
155 (setq class (format "elmo-%s" (symbol-name type)))
156 (require (intern class))
157 (setq folder (luna-make-entity (intern (concat class "-folder"))
161 :persistent (not non-persistent)))
163 (elmo-folder-send folder 'elmo-folder-initialize name))))
165 ;; Note that this function is for internal use only.
166 (luna-define-generic elmo-folder-msgdb (folder)
167 "Return the msgdb of FOLDER (on-demand loading).
168 \(For internal use only.\)")
170 (luna-define-method elmo-folder-msgdb ((folder elmo-folder))
171 (or (elmo-folder-msgdb-internal folder)
172 (elmo-folder-set-msgdb-internal folder
173 (elmo-folder-msgdb-load folder))))
175 (luna-define-generic elmo-folder-open (folder &optional load-msgdb)
176 "Open and setup (load saved status) FOLDER.
177 If optional LOAD-MSGDB is non-nil, msgdb is loaded.
178 \(otherwise, msgdb is loaded on-demand)")
180 (luna-define-generic elmo-folder-open-internal (folder)
181 "Open FOLDER (without loading saved folder status).")
183 (luna-define-generic elmo-folder-check (folder)
184 "Check the FOLDER to obtain newest information at the next list operation.")
186 (luna-define-generic elmo-folder-clear (folder &optional keep-killed)
187 "Clear FOLDER to the initial state.
188 If optional KEEP-KILLED is non-nil, killed-list is not cleared.")
190 (luna-define-generic elmo-folder-commit (folder)
191 "Save current status of FOLDER.")
193 (luna-define-generic elmo-folder-close (folder)
194 "Close, save and clearnup FOLDER.")
196 (luna-define-generic elmo-folder-close-internal (folder)
197 "Close FOLDER (without saving folder status).")
199 (luna-define-generic elmo-folder-plugged-p (folder)
200 "Returns t if FOLDER is plugged.")
202 (luna-define-generic elmo-folder-set-plugged (folder plugged &optional add)
203 "Set FOLDER as plugged.")
205 (luna-define-generic elmo-net-port-info (folder)
206 "Get port information of FOLDER.")
208 (luna-define-generic elmo-folder-use-flag-p (folder)
209 "Returns t if FOLDER treats unread/important flag itself.")
211 (luna-define-generic elmo-folder-diff (folder)
213 Return value is cons cell or list:
214 - a cons cell (new . all)
215 - a list (new unread all)")
217 (luna-define-generic elmo-folder-status (folder)
218 "Returns a cons cell of (MAX-NUMBER . MESSAGES) in the FOLDER.")
220 (luna-define-generic elmo-folder-reserve-status-p (folder)
221 "If non-nil, the folder should not close folder after `elmo-folder-status'.")
223 (luna-define-generic elmo-folder-list-messages (folder &optional visible-only
225 "Return a list of message numbers contained in FOLDER.
226 If optional VISIBLE-ONLY is non-nil, killed messages are not listed.
227 If second optional IN-MSGDB is non-nil, only messages in the msgdb are listed.")
229 (luna-define-method elmo-folder-list-messages ((folder elmo-folder)
230 &optional visible-only in-msgdb)
231 (let ((list (if in-msgdb
233 (elmo-folder-list-messages-internal folder visible-only)))
234 (killed-list (elmo-folder-killed-list-internal folder)))
237 (setq list (elmo-msgdb-list-messages (elmo-folder-msgdb folder))))
239 (elmo-living-messages list killed-list)
240 (if (and in-msgdb killed-list)
241 (elmo-uniq-sorted-list
242 (sort (nconc (elmo-number-set-to-number-list killed-list) list) #'<)
246 (luna-define-generic elmo-folder-list-messages-internal (folder &optional
248 ;; Return a list of message numbers contained in FOLDER.
249 ;; Return t if the message list is not available.
252 (luna-define-generic elmo-folder-list-flagged (folder flag &optional in-msgdb)
253 "List messages in the FOLDER with FLAG.
254 FLAG is a symbol which is one of the following:
256 `unread' (unread messages (new messages are included))
257 `answered' (answered or forwarded)
258 `important' (marked as important)
261 `digest' (unread + important + other flags)
262 `any' (digest + answered + other flags)
263 If optional IN-MSGDB is non-nil, retrieve flag information from msgdb.")
265 (luna-define-method elmo-folder-list-flagged ((folder elmo-folder) flag
267 (let ((msgs (if in-msgdb
269 (elmo-folder-list-flagged-internal folder flag))))
271 (setq msgs (elmo-msgdb-list-flagged (elmo-folder-msgdb folder) flag)))
275 (nconc (elmo-folder-list-global-flag-messages folder flag) msgs)
278 (luna-define-generic elmo-folder-list-flagged-internal (folder flag)
279 "Return a list of message in the FOLDER with FLAG.
280 Return t if the message list is not available.")
282 (luna-define-method elmo-folder-list-flagged-internal ((folder elmo-folder)
286 (luna-define-generic elmo-folder-list-subfolders (folder &optional one-level)
287 "Returns a list of subfolders contained in FOLDER.
288 If optional argument ONE-LEVEL is non-nil, only children of FOLDER is returned.
289 \(a folder which have children is returned as a list\)
290 Otherwise, all descendent folders are returned.")
292 (luna-define-generic elmo-folder-have-subfolder-p (folder)
293 "Return non-nil when FOLDER has subfolders.")
295 (luna-define-generic elmo-folder-exists-p (folder)
296 "Returns non-nil when FOLDER exists.")
298 (luna-define-generic elmo-folder-creatable-p (folder)
299 "Returns non-nil when FOLDER is creatable.")
301 (luna-define-generic elmo-folder-writable-p (folder)
302 "Returns non-nil when FOLDER is writable.")
304 (luna-define-generic elmo-folder-persistent-p (folder)
305 "Return non-nil when FOLDER is persistent.")
307 (luna-define-generic elmo-folder-create (folder)
310 (luna-define-generic elmo-message-deletable-p (folder number)
311 "Returns non-nil when the message in the FOLDER with NUMBER is deletable.")
313 (luna-define-generic elmo-folder-delete (folder)
314 "Delete FOLDER completely.")
316 (luna-define-generic elmo-folder-rename (folder new-name)
317 "Rename FOLDER to NEW-NAME (string).")
319 (luna-define-generic elmo-folder-delete-messages (folder numbers)
320 "Delete messages with msgdb entity.
321 FOLDER is the ELMO folder structure.
322 NUMBERS is a list of message numbers to be deleted.
323 It is not recommended to use this function other than internal use.
324 Use `elmo-folder-move-messages' with dst-folder 'null instead.")
326 (luna-define-generic elmo-folder-delete-messages-internal (folder numbers)
327 "Delete messages, but no delete msgdb entity.
328 FOLDER is the ELMO folder structure.
329 NUMBERS is a list of message numbers to be deleted.
330 Override this method by each implement of `elmo-folder'.")
332 (luna-define-generic elmo-folder-search (folder condition &optional numbers)
333 "Search and return list of message numbers.
334 FOLDER is the ELMO folder structure.
335 CONDITION is a condition structure for searching.
336 If optional argument NUMBERS is specified and is a list of message numbers,
337 messages are searched from the list.")
339 (luna-define-generic elmo-message-match-condition (folder number
342 "Return non-nil when the message in the FOLDER with NUMBER is matched.
343 CONDITION is a condition structure for testing.
344 NUMBERS is a list of message numbers,
345 use to be test for \"last\" and \"first\" predicates.")
347 (luna-define-generic elmo-folder-msgdb-create (folder numbers flag-table)
348 "Create a message database (implemented in each backends).
349 FOLDER is the ELMO folder structure.
350 NUMBERS is a list of message numbers to create msgdb.
351 FLAG-TABLE is a hashtable of message-id and flag.")
353 (luna-define-generic elmo-folder-set-flag (folder numbers flag
356 FOLDER is a ELMO folder structure.
357 NUMBERS is a list of message number to set flag.
359 FLAG is a symbol which is one of the following:
360 `unread' (set the message as unread)
361 `answered' (set the message as answered)
362 `important' (set the message as important)
364 `read' (remove new and unread flags)
365 If optional IS-LOCAL is non-nil, update only local (not server) status.")
367 (luna-define-generic elmo-folder-unset-flag (folder numbers flag
369 "Unset messages flag.
370 FOLDER is a ELMO folder structure.
371 NUMBERS is a list of message number to unset flag.
373 FLAG is a symbol which is one of the following:
374 `unread' (remove unread and new flag)
375 `answered' (remove answered flag)
376 `important' (remove important flag)
378 `read' (set unread flag)
379 `all' (remove all flags)
380 If optional IS-LOCAL is non-nil, update only local (not server) status.")
382 (luna-define-generic elmo-message-flag-available-p (folder number flag)
383 "Return non-nil when a message in the FOLDER with NUMBER treats FLAG.")
385 (luna-define-generic elmo-folder-next-message-number (folder)
386 "The next message number that will be assigned to a new message.
387 FOLDER is the ELMO folder structure.")
389 (luna-define-generic elmo-folder-append-buffer (folder &optional flags
391 "Append current buffer as a new message.
392 FOLDER is the destination folder (ELMO folder structure).
393 FLAGS is the flag list for the appended message (list of symbols).
394 If FLAGS contain `read', the message is appended as `not-unread'.
395 If it is nil, the appended message will be treated as `new'.
396 If optional argument NUMBER is specified, the new message number is set
398 Return nil on failure.")
400 (luna-define-generic elmo-folder-append-messages (folder
405 "Append messages from folder.
406 FOLDER is the ELMO folder structure.
407 Caller should make sure FOLDER is `writable'.
408 \(Can be checked with `elmo-folder-writable-p'\).
409 SRC-FOLDER is the source ELMO folder structure.
410 NUMBERS is the message numbers to be appended in the SRC-FOLDER.
411 If second optional argument SAME-NUMBER is specified,
412 message number is preserved \(if possible\).
413 Returns a list of message numbers successfully appended.")
415 (luna-define-generic elmo-folder-pack-numbers (folder)
416 "Pack message numbers of FOLDER.")
418 (luna-define-generic elmo-folder-update-number (folder)
419 "Update number of FOLDER.")
421 (luna-define-generic elmo-folder-diff-async (folder)
422 "Get diff of FOLDER asynchronously.")
424 (luna-define-generic elmo-folder-expand-msgdb-path (folder)
425 "Expand path for FOLDER.")
427 (luna-define-generic elmo-folder-get-primitive-list (folder)
428 "Get primitive folder structure list contained in FOLDER.")
430 (luna-define-generic elmo-folder-contains-type (folder type)
431 "Returns t if FOLDER contains TYPE.")
433 (luna-define-generic elmo-folder-local-p (folder)
434 "Returns t if FOLDER is local.")
436 (luna-define-generic elmo-folder-message-file-p (folder)
437 "Returns t if all messages in the FOLDER are files.")
440 (luna-define-generic elmo-message-use-cache-p (folder number)
441 "Returns t if the message in the FOLDER with NUMBER uses cache.")
443 (luna-define-generic elmo-message-file-name (folder number)
444 "Return the file name of a message specified by FOLDER and NUMBER.")
448 ;;; Use original file
449 (luna-define-generic elmo-folder-message-file-number-p (folder)
450 "Return t if the file name in the FOLDER is the message number.")
452 (luna-define-generic elmo-folder-message-file-directory (folder)
453 "Return the directory of the message files of FOLDER.")
455 ;;; Use temporary file
456 (luna-define-generic elmo-folder-message-make-temp-file-p (folder)
457 "Return t if the messages in the FOLDER makes local temporary file.")
459 (luna-define-generic elmo-folder-message-make-temp-files (folder
463 "Make a new temporary files from the messages in the FOLDER with NUMBERS.
464 If START-NUMBER is specified, temporary files begin from the number.
465 Otherwise, same number is used for temporary files.
466 Return newly created temporary directory name which contains temporary files.")
468 (luna-define-generic elmo-message-file-p (folder number)
469 "Return t if message in the FOLDER with NUMBER is a file.")
471 (luna-define-generic elmo-message-flags (folder number)
472 "Return a list of flags.
473 FOLDER is a ELMO folder structure.
474 NUMBER is a number of the message.")
476 (defun elmo-message-flags-for-append (folder number &optional message-id)
477 "Return a list of flags for `elmo-folder-append-buffer'.
478 FOLDER is a ELMO folder structure.
479 NUMBER is a number of the message.
480 If optional argument MESSAGES-ID is not specified, get it from current buffer."
481 (let ((this-id (elmo-message-field folder number 'message-id)))
483 (string= this-id (or message-id
484 (elmo-msgdb-get-message-id-from-buffer)))
485 (or (elmo-message-flags folder number)
486 ;; message exists, but no flag.
489 (luna-define-method elmo-message-flag-available-p ((folder elmo-folder) number
491 (elmo-msgdb-flag-available-p (elmo-folder-msgdb folder) flag))
493 (luna-define-method elmo-message-flags ((folder elmo-folder) number)
494 (elmo-msgdb-flags (elmo-folder-msgdb folder) number))
496 (defsubst elmo-message-flagged-p (folder number flag)
497 "Return non-nil if the message is set FLAG.
498 FOLDER is a ELMO folder structure.
499 NUMBER is a message number to test."
500 (let ((cur-flags (elmo-message-flags folder number)))
503 (not (memq 'unread cur-flags)))
505 (memq flag cur-flags)))))
507 (luna-define-generic elmo-find-fetch-strategy (folder number
511 "Return the message fetching strategy suitable for the message with NUMBER.
512 FOLDER is the ELMO folder structure.
513 If optional argument IGNORE-CACHE is non-nil, existing cache is ignored.
514 If second optional argument REQUIRE-ENTIRENESS is non-nil,
515 ensure that entireness of the returned strategy is entire.
516 Returned value is a elmo-fetch-strategy object.
517 If return value is nil, message should not be nil.")
519 (defmacro elmo-make-fetch-strategy (entireness
524 "Make elmo-message-fetching strategy.
525 ENTIRENESS is 'entire or 'section.
526 'entire means fetch message entirely at once.
527 'section means fetch message section by section.
528 If optional USE-CACHE is non-nil, existing cache is used and otherwise,
529 existing cache is thrown away.
530 If SAVE-CACHE is non-nil, fetched message is saved.
531 CACHE-PATH is the cache path to be used as a message cache file."
532 `(vector ,entireness ,use-cache ,save-cache ,cache-path))
534 (defmacro elmo-fetch-strategy-entireness (strategy)
535 "Return entireness of STRATEGY."
538 (defmacro elmo-fetch-strategy-use-cache (strategy)
539 "Return use-cache of STRATEGY."
542 (defmacro elmo-fetch-strategy-save-cache (strategy)
543 "Return save-cache of STRATEGY."
546 (defmacro elmo-fetch-strategy-cache-path (strategy)
547 "Return cache-path of STRATEGY."
550 (luna-define-method elmo-find-fetch-strategy ((folder elmo-folder) number
554 (let ((entity (elmo-message-entity folder number)))
556 (elmo-make-fetch-strategy 'entire)
557 (let* ((size (elmo-message-entity-field entity 'size))
558 (message-id (elmo-message-entity-field entity 'message-id))
559 (cache-file (elmo-file-cache-get message-id))
560 (use-cache (elmo-message-use-cache-p folder number)))
561 (if (and (not ignore-cache)
563 (eq (elmo-file-cache-status cache-file) 'entire))
564 ;; Cache exists and use it.
565 (elmo-make-fetch-strategy
568 use-cache ; Save cache.
569 (elmo-file-cache-path cache-file))
570 ;; No cache or ignore-cache.
571 (if (and (not (elmo-folder-local-p folder))
572 (not require-entireness)
573 elmo-message-fetch-threshold
575 (>= size elmo-message-fetch-threshold)
576 (or (not elmo-message-fetch-confirm)
579 (format "Fetch entire message(%dbytes)? "
582 ;; Don't fetch message at all.
584 ;; Don't use existing cache and fetch entire message at once.
585 (elmo-make-fetch-strategy
587 nil ; Don't use cache.
588 use-cache ; Save cache.
589 (elmo-file-cache-path cache-file))))))))
591 (luna-define-method elmo-folder-list-messages-internal
592 ((folder elmo-folder) &optional visible-only)
595 (defun elmo-folder-encache (folder numbers &optional unread)
596 "Encache messages in the FOLDER with NUMBERS.
597 If UNREAD is non-nil, messages are not flaged as read."
598 (dolist (number numbers)
599 (elmo-message-encache folder number unread)))
601 (luna-define-generic elmo-message-encache (folder number &optional read)
602 "Encache message in the FOLDER with NUMBER.
603 If READ is non-nil, message is flaged as read.")
605 (luna-define-method elmo-message-encache ((folder elmo-folder) number
611 (elmo-make-fetch-strategy 'entire
614 (setq path (elmo-file-cache-get-path
616 folder number 'message-id))))
620 (luna-define-generic elmo-message-fetch-bodystructure (folder number strategy)
621 "Fetch bodystructure of the message in FOLDER with NUMBER using STRATEGY.")
623 (luna-define-generic elmo-message-fetch (folder number strategy
627 "Fetch a message into current buffer.
628 FOLDER is the ELMO folder structure.
629 NUMBER is the number of the message in the FOLDER.
630 STRATEGY is the message fetching strategy.
631 If optional argument UNREAD is non-nil, message is not flaged as read.
632 If second optional argument SECTION is specified, only the
633 SECTION of the message is fetched (if possible).
634 Returns non-nil if fetching was succeed.")
636 (luna-define-generic elmo-message-fetch-internal (folder number strategy
640 "Fetch a message into current buffer.
641 FOLDER is the ELMO folder structure.
642 NUMBER is the number of the message in the FOLDER.
643 STRATEGY is the message fetching strategy.
644 If optional argument SECTION is specified, only the SECTION of the message
645 is fetched (if possible).
646 If second optional argument UNREAD is non-nil, message is not flaged as read.
647 Returns non-nil if fetching was succeed.")
649 (luna-define-generic elmo-message-fetch-field (folder number field)
650 "Fetch a message field value.
651 FOLDER is the ELMO folder structure.
652 NUMBER is the number of the message in the FOLDER.
653 FIELD is a symbol of the field name.")
655 (luna-define-generic elmo-message-folder (folder number)
656 "Get primitive folder of the message.")
658 (luna-define-generic elmo-folder-process-crosspost (folder)
659 "Process crosspost for FOLDER.
660 Return a cons cell of (NUMBER-CROSSPOSTS . NEW-FLAG-ALIST).")
662 (luna-define-generic elmo-folder-newsgroups (folder)
663 "Return list of newsgroup name of FOLDER.")
665 (luna-define-generic elmo-folder-search-requires-msgdb-p (folder condition)
666 "Return non-nil if searching in FOLDER by CONDITION requires msgdb fetch.")
668 (defun elmo-folder-search-requires-msgdb-p-internal (folder condition)
669 (if (listp condition)
670 (or (elmo-folder-search-requires-msgdb-p-internal
671 folder (nth 1 condition))
672 (elmo-folder-search-requires-msgdb-p-internal
673 folder (nth 2 condition)))
674 (and (not (string= (elmo-filter-key condition) "last"))
675 (not (string= (elmo-filter-key condition) "first")))))
677 (luna-define-method elmo-folder-search-requires-msgdb-p ((folder elmo-folder)
679 (elmo-folder-search-requires-msgdb-p-internal folder condition))
681 (luna-define-method elmo-folder-newsgroups ((folder elmo-folder))
684 (luna-define-method elmo-folder-open ((folder elmo-folder)
685 &optional load-msgdb)
686 (elmo-generic-folder-open folder load-msgdb))
688 (defun elmo-generic-folder-open (folder load-msgdb)
689 (let ((inhibit-quit t))
690 (if load-msgdb (elmo-folder-msgdb folder))
691 (elmo-folder-set-killed-list-internal
693 (elmo-msgdb-killed-list-load (elmo-folder-msgdb-path folder))))
694 (elmo-folder-open-internal folder))
696 (luna-define-method elmo-folder-open-internal ((folder elmo-folder))
697 nil ; default is do nothing.
700 (luna-define-method elmo-folder-check ((folder elmo-folder))
701 nil) ; default is noop.
703 (luna-define-method elmo-folder-commit ((folder elmo-folder))
704 (elmo-generic-folder-commit folder))
706 (defun elmo-generic-folder-commit (folder)
707 (when (elmo-folder-persistent-p folder)
708 (let ((msgdb (elmo-folder-msgdb-internal folder)))
710 (when (elmo-msgdb-message-modified-p msgdb)
711 (elmo-folder-set-info-max-by-numdb
713 (elmo-folder-list-messages folder nil 'in-msgdb)))
714 (elmo-msgdb-save msgdb)))
715 (elmo-msgdb-killed-list-save
716 (elmo-folder-msgdb-path folder)
717 (elmo-folder-killed-list-internal folder))))
719 (luna-define-method elmo-folder-close-internal ((folder elmo-folder))
723 (luna-define-method elmo-folder-close ((folder elmo-folder))
724 (elmo-generic-folder-close folder)
725 (elmo-folder-close-internal folder))
727 (defun elmo-generic-folder-close (folder)
728 (elmo-folder-commit folder)
729 (elmo-folder-set-msgdb-internal folder nil)
730 (elmo-folder-set-killed-list-internal folder nil))
732 (luna-define-method elmo-folder-plugged-p ((folder elmo-folder))
733 t) ; default is plugged.
735 (luna-define-method elmo-folder-set-plugged ((folder elmo-folder) plugged
737 nil) ; default is do nothing.
739 (luna-define-method elmo-folder-use-flag-p ((folder elmo-folder))
740 nil) ; default is no flag.
742 (luna-define-method elmo-folder-persistent-p ((folder elmo-folder))
743 (elmo-folder-persistent-internal folder))
745 (luna-define-method elmo-folder-creatable-p ((folder elmo-folder))
746 nil) ; default is not creatable.
748 (luna-define-method elmo-folder-writable-p ((folder elmo-folder))
749 nil) ; default is not writable.
751 (luna-define-method elmo-folder-delete ((folder elmo-folder))
752 (when (yes-or-no-p (format "Delete msgdb of \"%s\"? "
753 (elmo-folder-name-internal folder)))
754 (elmo-msgdb-delete-path folder)
757 (luna-define-method elmo-folder-rename ((folder elmo-folder) new-name)
758 (let* ((new-folder (elmo-make-folder new-name)))
759 (unless (eq (elmo-folder-type-internal folder)
760 (elmo-folder-type-internal new-folder))
761 (error "Not same folder type"))
762 (if (or (file-exists-p (elmo-folder-msgdb-path new-folder))
763 (elmo-folder-exists-p new-folder))
764 (error "Already exists folder: %s" new-name))
765 (elmo-folder-send folder 'elmo-folder-rename-internal new-folder)
766 (elmo-msgdb-rename-path folder new-folder)))
768 (luna-define-method elmo-folder-delete-messages ((folder elmo-folder)
770 (and (elmo-folder-delete-messages-internal folder numbers)
771 (elmo-folder-detach-messages folder numbers)))
773 (luna-define-method elmo-folder-search ((folder elmo-folder)
776 (let ((numbers (or numbers (elmo-folder-list-messages folder)))
777 (msgdb (elmo-folder-msgdb folder))
779 (setq results (elmo-msgdb-search msgdb condition numbers))
782 (let ((len (length numbers))
784 (elmo-with-progress-display (> len elmo-display-progress-threshold)
785 (elmo-folder-search len "Searching...")
786 (dolist (number numbers)
788 (setq result (elmo-msgdb-match-condition msgdb
792 (when (elmo-filter-condition-p result)
793 (setq result (elmo-message-match-condition folder
798 (setq matched (cons number matched))))
799 (elmo-progress-notify 'elmo-folder-search)))
800 (message "Searching...done")
801 (nreverse matched)))))
803 (luna-define-method elmo-message-match-condition ((folder elmo-folder)
806 (let* (cache cache-path
808 ((elmo-message-file-name folder number))
810 (setq cache (elmo-file-cache-get
811 (elmo-message-field folder number
813 (setq cache-path (elmo-file-cache-path cache))
815 (not (elmo-cache-path-section-p cache-path))))
817 (when (and filename (file-readable-p filename))
819 (set-buffer-multibyte nil)
820 ;;(insert-file-contents-as-binary filename)
821 (elmo-message-fetch folder number
822 (elmo-make-fetch-strategy 'entire
827 (set-buffer-multibyte default-enable-multibyte-characters)
828 (decode-coding-region (point-min) (point-max)
829 elmo-mime-display-as-is-coding-system)
830 (elmo-buffer-field-condition-match condition number numbers)))))
832 (luna-define-method elmo-folder-pack-numbers ((folder elmo-folder))
833 nil) ; default is noop.
835 (luna-define-method elmo-folder-update-number ((folder elmo-folder))
836 nil) ; default is noop.
838 (luna-define-method elmo-folder-message-file-p ((folder elmo-folder))
839 nil) ; default is not file.
841 (luna-define-method elmo-folder-message-file-number-p ((folder elmo-folder))
842 nil) ; default is not number.
844 (luna-define-method elmo-folder-message-make-temp-file-p ((folder elmo-folder))
845 nil) ; default is not make temp file.
847 (luna-define-method elmo-message-file-name ((folder elmo-folder)
849 nil) ; default is no name.
851 (luna-define-method elmo-folder-local-p ((folder elmo-folder))
852 t) ; default is local.
854 (luna-define-method elmo-folder-have-subfolder-p ((folder elmo-folder))
858 (luna-define-generic elmo-folder-flag-table (folder &optional if-exists)
859 "Return the flag-table of FOLDER.
860 If optional argument IF-EXISTS is nil, load on demand.
861 \(For internal use only.\)")
863 (luna-define-generic elmo-folder-close-flag-table (folder)
864 "Close flag-table of FOLDER.")
866 (luna-define-method elmo-folder-flag-table ((folder elmo-folder)
868 (or (elmo-folder-flag-table-internal folder)
870 (elmo-folder-set-flag-table-internal
872 (elmo-flag-table-load (elmo-folder-msgdb-path folder))))))
874 (luna-define-method elmo-folder-close-flag-table ((folder elmo-folder))
875 (elmo-flag-table-save (elmo-folder-msgdb-path folder)
876 (elmo-folder-flag-table folder))
877 (elmo-folder-set-flag-table-internal folder nil))
879 (defun elmo-folder-preserve-flags (folder msgid flags)
880 "Preserve FLAGS into FOLDER for a message that has MSGID."
881 (when (and msgid flags)
882 (let ((flag-table (elmo-folder-flag-table folder 'if-exists))
884 (when (setq load-now (null flag-table))
885 (setq flag-table (elmo-folder-flag-table folder)))
886 (elmo-flag-table-set flag-table msgid flags)
888 (elmo-folder-close-flag-table folder)))))
891 ;; Folder info is a message number information cache (hashtable)
892 (defsubst elmo-folder-get-info (folder &optional hashtb)
893 "Return FOLDER info from HASHTB (default is `elmo-folder-info-hashtb')."
894 (elmo-get-hash-val (elmo-folder-name-internal folder)
895 (or hashtb elmo-folder-info-hashtb)))
897 (defun elmo-folder-set-info-hashtb (folder max numbers &optional new unread)
898 "Set FOLDER info (means MAX, NUMBERS, NEW and UNREAD)."
899 (let ((info (elmo-folder-get-info folder)))
901 (or new (setq new (nth 0 info)))
902 (or unread (setq unread (nth 1 info)))
903 (or numbers (setq numbers (nth 2 info)))
904 (or max (setq max (nth 3 info))))
905 (elmo-set-hash-val (elmo-folder-name-internal folder)
906 (list new unread numbers max)
907 elmo-folder-info-hashtb)))
909 (defun elmo-folder-set-info-max-by-numdb (folder numbers)
910 "Set FOLDER info by MSGDB-NUMBER in msgdb."
911 (elmo-folder-set-info-hashtb
913 (if numbers (apply #'max numbers) 0)
914 nil ;;(length num-db)
917 (defun elmo-folder-get-info-max (folder)
918 "Return max number of FODLER from folder info."
919 (nth 3 (elmo-folder-get-info folder)))
921 (defun elmo-folder-get-info-length (folder)
922 "Return length of FODLER from folder info."
923 (nth 2 (elmo-folder-get-info folder)))
925 (defun elmo-folder-get-info-unread (folder)
926 "Return unread of FODLER from folder info."
927 (nth 1 (elmo-folder-get-info folder)))
929 (defun elmo-folder-info-make-hashtb (info-alist hashtb)
930 "Setup folder info hashtable by INFO-ALIST on HASHTB."
931 (let* ((hashtb (or hashtb
932 (elmo-make-hash (length info-alist)))))
935 (let ((info (cadr x)))
936 (and (intern-soft (car x) hashtb)
937 (elmo-set-hash-val (car x)
938 (list (nth 2 info) ;; new
939 (nth 3 info) ;; unread
940 (nth 1 info) ;; length
944 (setq elmo-folder-info-hashtb hashtb)))
946 (defsubst elmo-diff-new (diff)
949 (defsubst elmo-diff-unread (diff)
950 (when (consp (cdr diff))
953 (defsubst elmo-diff-all (diff)
954 (if (consp (cdr diff))
958 (defsubst elmo-strict-folder-diff (folder)
959 "Return folder diff information strictly from FOLDER."
960 (let ((in-db (sort (elmo-folder-list-messages folder nil 'in-msgdb) '<))
961 (in-folder (elmo-folder-list-messages folder))
962 append-list delete-list diff)
963 (cons (if (equal in-folder in-db)
965 (setq diff (elmo-list-diff in-folder in-db nil))
966 (setq append-list (car diff))
967 (setq delete-list (cadr diff))
971 (- 0 (length delete-list))
973 (length in-folder))))
975 (luna-define-method elmo-folder-diff ((folder elmo-folder))
976 (elmo-generic-folder-diff folder))
978 (defun elmo-generic-folder-diff (folder)
979 (if (elmo-string-match-member (elmo-folder-name-internal folder)
980 elmo-strict-diff-folder-list)
981 (elmo-strict-folder-diff folder)
982 (let ((cached-in-db-max (elmo-folder-get-info-max folder))
983 (in-folder (elmo-folder-status folder))
987 (if (not cached-in-db-max)
988 (let ((number-list (elmo-folder-list-messages folder
991 (setq in-db number-list)
992 (setq in-db-max (if in-db (apply #'max in-db) 0))
993 (elmo-folder-set-info-hashtb folder in-db-max nil))
994 (setq in-db-max cached-in-db-max))
995 (setq unsync (if (and in-db (car in-folder))
996 (- (car in-folder) in-db-max)
997 (if (and in-folder (null in-db))
1000 (setq messages (cdr in-folder))
1001 (if (and unsync messages (> unsync messages))
1002 (setq unsync messages))
1003 (cons (or unsync 0) (or messages 0)))))
1005 (defvar elmo-folder-diff-async-callback nil)
1006 (defvar elmo-folder-diff-async-callback-data nil)
1008 (luna-define-method elmo-folder-diff-async ((folder elmo-folder))
1009 (and elmo-folder-diff-async-callback
1010 (funcall elmo-folder-diff-async-callback
1012 (elmo-folder-diff folder))))
1014 (luna-define-method elmo-folder-get-primitive-list ((folder elmo-folder))
1017 (luna-define-method elmo-folder-contains-type ((folder elmo-folder) type)
1018 (eq (elmo-folder-type-internal folder) type))
1020 (luna-define-method elmo-folder-next-message-number ((folder elmo-folder))
1021 (+ 1 (elmo-max-of-list (or (elmo-folder-list-messages folder)
1024 (luna-define-method elmo-folder-append-messages ((folder elmo-folder)
1029 (elmo-generic-folder-append-messages folder src-folder numbers
1032 (defun elmo-generic-folder-append-messages (folder src-folder numbers
1034 (let ((src-msgdb-exists (not (zerop (elmo-folder-length src-folder))))
1036 succeed-numbers failure cache id)
1037 (setq table (elmo-folder-flag-table folder))
1039 (set-buffer-multibyte nil)
1042 id (and src-msgdb-exists
1043 (elmo-message-field src-folder (car numbers)
1046 (setq cache (elmo-file-cache-get id)
1051 src-folder (car numbers)
1052 (if (elmo-folder-plugged-p src-folder)
1053 (elmo-make-fetch-strategy
1055 (and cache (elmo-file-cache-path cache)))
1056 (or (and elmo-enable-disconnected-operation
1058 (eq (elmo-file-cache-status cache) 'entire)
1059 (elmo-make-fetch-strategy
1061 (elmo-file-cache-path cache)))
1062 (error "Unplugged")))
1065 (elmo-folder-append-buffer
1067 (elmo-message-flags-for-append src-folder (car numbers))
1068 (if same-number (car numbers))))))
1069 (error (setq failure t)))
1070 ;; FETCH & APPEND finished
1072 (setq succeed-numbers (cons (car numbers) succeed-numbers)))
1073 (elmo-progress-notify 'elmo-folder-move-messages)
1074 (setq numbers (cdr numbers)))
1075 (when (elmo-folder-persistent-p folder)
1076 (elmo-folder-close-flag-table folder))
1079 ;; Arguments should be reduced.
1080 (defun elmo-folder-move-messages (src-folder msgs dst-folder
1085 (let* ((messages msgs)
1086 (elmo-inhibit-display-retrieval-progress t)
1089 (if (eq dst-folder 'null)
1090 (setq succeeds messages)
1091 (unless (elmo-folder-writable-p dst-folder)
1092 (error "move: %d is not writable"
1093 (elmo-folder-name-internal dst-folder)))
1095 ;; src is already opened.
1096 (elmo-folder-open-internal dst-folder)
1097 (unless (setq succeeds (elmo-folder-append-messages dst-folder
1101 (error "move: append message to %s failed"
1102 (elmo-folder-name-internal dst-folder)))
1103 (elmo-folder-close dst-folder)))
1104 (if (and (not no-delete) succeeds)
1106 (if (elmo-folder-delete-messages src-folder succeeds)
1108 (elmo-global-flag-detach-messages
1109 src-folder succeeds (eq dst-folder 'null))
1111 (message "move: delete messages from %s failed."
1112 (elmo-folder-name-internal src-folder))
1117 ;; (message "Copying messages...done")
1120 (message "No message was moved.")
1121 (message "Moving messages failed.")
1125 (defun elmo-folder-msgdb-path (folder)
1126 "Return the msgdb path for FOLDER."
1127 (or (elmo-folder-path-internal folder)
1128 (elmo-folder-set-path-internal
1130 (elmo-folder-expand-msgdb-path folder))))
1132 (luna-define-generic elmo-message-cached-p (folder number)
1133 "Return non-nil if the message is cached.")
1135 (luna-define-method elmo-message-cached-p ((folder elmo-folder) number)
1136 (elmo-message-flagged-p folder number 'cached))
1138 (defun elmo-message-accessible-p (folder number)
1139 "Get accessibility of the message.
1140 Return non-nil when message is accessible."
1141 (or (elmo-folder-plugged-p folder)
1142 (elmo-folder-local-p folder)
1143 (< number 0) ; in dop spool
1144 (elmo-message-cached-p folder number)))
1146 (luna-define-generic elmo-message-set-cached (folder number cached)
1147 "Set cache status of the message in the msgdb.
1148 FOLDER is the ELMO folder structure.
1149 NUMBER is a number of the message.
1150 If CACHED is t, message is set as cached.")
1152 (luna-define-method elmo-message-set-cached ((folder elmo-folder)
1155 (elmo-msgdb-set-flag (elmo-folder-msgdb folder) number 'cached)
1156 (elmo-msgdb-unset-flag (elmo-folder-msgdb folder) number 'cached))
1157 (elmo-folder-notify-event folder 'cache-changed number))
1159 (defun elmo-message-copy-entity (entity)
1160 (elmo-msgdb-copy-message-entity (elmo-message-entity-handler entity)
1163 (luna-define-generic elmo-message-number (folder message-id)
1164 "Get message number from MSGDB which corresponds to MESSAGE-ID.")
1166 (luna-define-method elmo-message-number ((folder elmo-folder) message-id)
1167 (elmo-msgdb-message-number (elmo-folder-msgdb folder) message-id))
1169 (luna-define-generic elmo-message-entity (folder key)
1170 "Return the message-entity structure which matches to the KEY.
1171 KEY is a number or a string.
1172 A number is for message number in the FOLDER.
1173 A string is for message-id of the message.")
1175 (luna-define-method elmo-message-entity ((folder elmo-folder) key)
1176 (elmo-msgdb-message-entity (elmo-folder-msgdb folder) key))
1178 (luna-define-generic elmo-message-entity-parent (folder entity)
1179 "Return the parent message-entity structure in the FOLDER.
1180 ENTITY is the message-entity to get the parent.")
1182 (luna-define-method elmo-message-entity-parent ((folder elmo-folder) entity)
1183 (elmo-msgdb-get-parent-entity entity (elmo-folder-msgdb folder)))
1185 (put 'elmo-folder-do-each-message-entity 'lisp-indent-function '1)
1186 (def-edebug-spec elmo-folder-do-each-message-entity
1187 ((symbolp form &rest form) &rest form))
1189 (defsubst elmo-folder-list-message-entities (folder)
1190 ;; List all message entities in the FOLDER.
1192 (lambda (number) (elmo-message-entity folder number))
1193 (elmo-folder-list-messages folder nil t))) ; XXX killed-list is not used.
1195 (defmacro elmo-folder-do-each-message-entity (spec &rest form)
1196 "Iterator for message entity in the folder.
1197 \(elmo-folder-do-each-message-entity \(entity folder\)
1198 ... do the process using entity...
1200 `(dolist (,(car spec) (elmo-folder-list-message-entities ,(car (cdr spec))))
1203 (luna-define-generic elmo-folder-count-flags (folder)
1204 "Count flagged message number in the msgdb of the FOLDER.
1205 Return alist of flag and numbers.
1209 \(answered . 3\)\)")
1211 (luna-define-method elmo-folder-count-flags ((folder elmo-folder))
1212 (elmo-msgdb-flag-count (elmo-folder-msgdb folder)))
1214 (defun elmo-message-set-flag (folder number flag &optional is-local)
1216 FOLDER is a ELMO folder structure.
1217 NUMBER is a message number to set flag.
1219 FLAG is a symbol which is one of the following:
1220 `unread' (set the message as unread)
1221 `answered' (set the message as answered)
1222 `important' (set the message as important)
1224 `read' (remove new and unread flags)
1225 If optional IS-LOCAL is non-nil, update only local (not server) status."
1226 ;; XXX Transitional implementation.
1227 (elmo-folder-set-flag folder (list number) flag is-local))
1229 (defun elmo-message-unset-flag (folder number flag &optional is-local)
1230 "Unset message flag.
1231 FOLDER is a ELMO folder structure.
1232 NUMBER is a message number to set flag.
1234 FLAG is a symbol which is one of the following:
1235 `unread' (remove unread and new flag)
1236 `answered' (remove answered flag)
1237 `important' (remove important flag)
1239 `read' (set unread flag)
1240 If optional IS-LOCAL is non-nil, update only local (not server) status."
1241 ;; XXX Transitional implementation.
1242 (elmo-folder-unset-flag folder (list number) flag is-local))
1244 (luna-define-generic elmo-message-field (folder number field)
1245 "Get message field value in the msgdb.
1246 FOLDER is the ELMO folder structure.
1247 NUMBER is a number of the message.
1248 FIELD is a symbol of the field.")
1250 (luna-define-method elmo-message-field ((folder elmo-folder) number field)
1251 (elmo-msgdb-message-field (elmo-folder-msgdb folder) number field))
1253 (luna-define-generic elmo-message-set-field (folder number field value)
1254 "Set message field value in the msgdb.
1255 FOLDER is the ELMO folder structure.
1256 NUMBER is a number of the message.
1257 FIELD is a symbol of the field.
1258 VALUE is a value to set.")
1260 (luna-define-method elmo-message-set-field ((folder elmo-folder) number
1262 (elmo-message-entity-set-field (elmo-message-entity folder number)
1265 (luna-define-method elmo-message-use-cache-p ((folder elmo-folder) number)
1266 nil) ; default is not use cache.
1268 (luna-define-method elmo-message-folder ((folder elmo-folder) number)
1269 folder) ; default is folder
1271 (luna-define-method elmo-folder-set-flag ((folder elmo-folder)
1275 (when (elmo-folder-msgdb-internal folder)
1276 (dolist (number numbers)
1277 (when (elmo-global-flag-p flag)
1278 (let ((message-id (elmo-message-field folder number 'message-id)))
1279 (elmo-global-flag-set flag folder number message-id)))
1280 (elmo-msgdb-set-flag (elmo-folder-msgdb folder)
1283 (elmo-folder-notify-event folder 'flag-changed numbers)))
1285 (defun elmo-message-has-global-flag-p (folder number)
1286 "Return non-nil when the message in the FOLDER with NUMBER has global flag."
1287 (let ((flags (elmo-message-flags folder number))
1290 (when (and (elmo-global-flag-p (car flags))
1291 (not (memq (car flags) '(answered unread cached))))
1294 (setq flags (cdr flags)))
1297 (defun elmo-message-set-global-flags (folder number flags &optional local)
1298 "Set global flags of the message in the FOLDER with NUMBER as FLAGS.
1299 If Optional LOCAL is non-nil, don't update server flag."
1300 (dolist (flag flags)
1301 (unless (elmo-global-flag-p flag)
1302 (error "Not a global flag")))
1303 (let ((old-flags (elmo-get-global-flags (elmo-message-flags folder number))))
1304 (dolist (flag flags)
1305 (unless (memq flag old-flags)
1306 (elmo-message-set-flag folder number flag local)))
1307 (dolist (flag old-flags)
1308 (unless (memq flag flags)
1309 (elmo-message-unset-flag folder number flag local)))))
1311 (luna-define-method elmo-folder-unset-flag ((folder elmo-folder)
1315 (when (elmo-folder-msgdb-internal folder)
1316 (dolist (number numbers)
1317 (when (elmo-global-flag-p flag)
1318 (elmo-global-flag-detach flag folder number 'always))
1319 (elmo-msgdb-unset-flag (elmo-folder-msgdb folder)
1322 (elmo-folder-notify-event folder 'flag-changed numbers)))
1324 (luna-define-method elmo-folder-process-crosspost ((folder elmo-folder))
1328 ;;(luna-define-generic elmo-folder-append-message-entity (folder entity
1331 ;; "Append ENTITY to the folder.")
1333 (defun elmo-msgdb-merge (folder msgdb-merge)
1334 "Return a list of messages which have duplicated message-id."
1335 (let (msgdb duplicates)
1336 (setq msgdb (or (elmo-folder-msgdb-internal folder)
1337 (elmo-make-msgdb (elmo-folder-msgdb-path folder))))
1338 (setq duplicates (elmo-msgdb-append msgdb msgdb-merge))
1339 (elmo-folder-set-msgdb-internal folder msgdb)
1342 (defsubst elmo-folder-append-msgdb (folder append-msgdb)
1344 (let ((duplicates (elmo-msgdb-merge folder append-msgdb)))
1345 (cond ((eq (elmo-folder-process-duplicates-internal folder)
1347 ;; Let duplicates be a temporary killed message.
1348 (elmo-folder-kill-messages folder duplicates)
1349 ;; Should be flag as read.
1350 (elmo-folder-unset-flag folder duplicates 'unread))
1351 ((eq (elmo-folder-process-duplicates-internal folder)
1353 ;; Flag as read duplicates.
1354 (elmo-folder-unset-flag folder duplicates 'unread))
1357 (setq duplicates nil)))
1358 (length duplicates))
1361 (defun elmo-folder-confirm-appends (appends)
1362 (let ((len (length appends))
1364 (if (and elmo-folder-update-threshold
1365 (> len elmo-folder-update-threshold)
1366 elmo-folder-update-confirm)
1367 (if (y-or-n-p (format "Too many messages(%d). Update all? " len))
1369 (setq in elmo-folder-update-threshold)
1372 (setq in (read-from-minibuffer "Update number: "
1374 in (string-to-int in))
1377 (if (y-or-n-p (format
1378 "%d messages are killed (not appeared). OK? "
1379 (max (- len in) 0)))
1381 (nthcdr (max (- len in) 0) appends))
1382 (if (and elmo-folder-update-threshold
1383 (> len elmo-folder-update-threshold)
1384 (not elmo-folder-update-confirm))
1385 (nthcdr (max (- len elmo-folder-update-threshold) 0) appends)
1388 (luna-define-method elmo-message-fetch-bodystructure ((folder elmo-folder)
1392 (defun elmo-message-fetch-string (folder number strategy
1397 (when (elmo-message-fetch folder number strategy unread section)
1400 (luna-define-method elmo-message-fetch ((folder elmo-folder)
1406 (let ((cache-path (elmo-fetch-strategy-cache-path strategy))
1408 (cond ((eq (elmo-fetch-strategy-use-cache strategy) 'maybe)
1410 ((elmo-fetch-strategy-use-cache strategy)
1414 result err updated-server-flag)
1415 (while (and method-priorities
1418 (case (car method-priorities)
1420 (elmo-file-cache-load cache-path section))
1422 (when (condition-case error
1423 (elmo-message-fetch-internal folder number
1427 (error (setq err error) nil))
1428 (setq updated-server-flag t)
1429 (when (and (elmo-fetch-strategy-save-cache strategy)
1431 (elmo-file-cache-save cache-path section))
1433 method-priorities (cdr method-priorities)))
1435 (when (and (not unread)
1436 (elmo-message-flagged-p folder number 'unread))
1437 (elmo-message-unset-flag folder number 'unread updated-server-flag))
1439 (signal (car err) (cdr err))))
1442 (defun elmo-folder-kill-messages-range (folder beg end)
1443 (elmo-folder-set-killed-list-internal
1446 (elmo-folder-killed-list-internal folder)
1447 (list (cons beg end)))))
1449 (defun elmo-folder-kill-messages (folder numbers)
1450 "Kill(hide) messages in the FOLDER with NUMBERS."
1451 (elmo-folder-set-killed-list-internal
1453 (elmo-number-set-append-list
1454 (elmo-folder-killed-list-internal folder)
1456 (elmo-folder-unset-flag folder numbers 'all 'local-only))
1458 (luna-define-method elmo-folder-clear ((folder elmo-folder)
1459 &optional keep-killed)
1461 (elmo-folder-set-killed-list-internal folder nil))
1462 (if (eq elmo-msgdb-convert-type 'sync)
1463 (elmo-folder-set-msgdb-internal
1465 (elmo-make-msgdb (elmo-folder-msgdb-path folder)))
1466 (elmo-msgdb-clear (elmo-folder-msgdb folder))))
1468 (luna-define-generic elmo-folder-synchronize (folder
1474 "Synchronize the folder data to the newest status.
1475 FOLDER is the ELMO folder structure.
1477 If optional DISABLE-KILLED is non-nil, killed messages are also synchronized.
1478 If optional IGNORE-MSGDB is non-nil, current msgdb is thrown away except
1480 If NO-CHECK is non-nil, rechecking folder is skipped.
1481 If optional argument MASK is specified and is a list of message numbers,
1482 synchronize messages only which are contained the list.
1483 Return amount of cross-posted messages.
1484 If update process is interrupted, return nil.")
1486 (luna-define-method elmo-folder-synchronize ((folder elmo-folder)
1492 (let ((old-msgdb (elmo-folder-msgdb folder))
1493 (killed-list (elmo-folder-killed-list-internal folder))
1494 (flag-table (elmo-flag-table-load (elmo-folder-msgdb-path folder)))
1497 (elmo-msgdb-flag-table (elmo-folder-msgdb folder) flag-table)
1498 (elmo-folder-clear folder (not disable-killed)))
1499 (unless no-check (elmo-folder-check folder))
1501 (let ((killed-list (elmo-folder-killed-list-internal folder))
1503 delete-list new-list new-msgdb crossed)
1504 (message "Checking folder diff...")
1506 '(diff-new diff-del)
1507 (elmo-list-diff (elmo-folder-list-messages folder)
1508 (elmo-folder-list-messages folder nil 'in-msgdb)))
1510 (unless disable-killed
1511 (setq diff-new (elmo-living-messages diff-new killed-list)))
1513 (setq diff-new (elmo-list-filter mask diff-new))))
1514 (message "Checking folder diff...done")
1515 (setq new-list (elmo-folder-confirm-appends diff-new))
1516 ;; Append to killed list as (MIN-OF-DISAPPEARED . MAX-OF-DISAPPEARED)
1517 (when (not (eq (length diff-new)
1519 (let* ((diff (elmo-list-diff diff-new new-list))
1520 (disappeared (car diff)))
1522 (elmo-folder-kill-messages-range folder
1524 (elmo-last disappeared)))))
1525 (setq delete-list diff-del)
1526 (if (and (null diff-new) (null diff-del))
1528 (elmo-folder-update-number folder)
1529 (elmo-folder-process-crosspost folder)
1530 0) ; `0' means no updates.
1532 (elmo-folder-detach-messages folder delete-list))
1534 (elmo-msgdb-out-of-date-messages (elmo-folder-msgdb folder))
1535 (setq new-msgdb (elmo-folder-msgdb-create
1536 folder new-list flag-table))
1538 (if (elmo-folder-persistent-p folder)
1539 (elmo-flag-table-save (elmo-folder-msgdb-path folder)
1541 (setq before-append nil)
1542 (setq crossed (elmo-folder-append-msgdb folder new-msgdb))
1543 ;; process crosspost.
1544 ;; Return a cons cell of (NUMBER-CROSSPOSTS . NEW-FLAG-ALIST).
1545 (elmo-folder-process-crosspost folder))
1549 ;; Resume to the original status.
1550 (if before-append (elmo-folder-set-msgdb-internal folder old-msgdb))
1551 (elmo-folder-set-killed-list-internal folder killed-list)
1554 (luna-define-generic elmo-folder-detach-messages (folder numbers)
1555 "Remove messages with NUMBERS from MSGDB.")
1557 (luna-define-method elmo-folder-detach-messages ((folder elmo-folder)
1559 (when (elmo-msgdb-delete-messages (elmo-folder-msgdb folder) numbers)
1560 ;; Remove NUMBERS from killed message list.
1561 (elmo-folder-set-killed-list-internal
1563 (elmo-number-set-delete-list
1564 (elmo-folder-killed-list-internal folder)
1568 (luna-define-generic elmo-folder-length (folder)
1569 "Return number of messages in the FOLDER.")
1571 (luna-define-method elmo-folder-length ((folder elmo-folder))
1572 (if (elmo-folder-msgdb-internal folder)
1573 (elmo-msgdb-length (elmo-folder-msgdb folder))
1576 (defun elmo-folder-msgdb-load (folder &optional silent)
1578 (message "Loading msgdb for %s..." (elmo-folder-name-internal folder)))
1579 (let ((msgdb (elmo-load-msgdb (elmo-folder-msgdb-path folder))))
1580 (elmo-folder-set-info-max-by-numdb
1582 (elmo-msgdb-list-messages msgdb))
1584 (message "Loading msgdb for %s...done"
1585 (elmo-folder-name-internal folder)))
1588 (defun elmo-msgdb-delete-path (folder)
1589 (let ((path (elmo-folder-msgdb-path folder)))
1590 (if (file-directory-p path)
1591 (elmo-delete-directory path t))))
1593 (defun elmo-msgdb-rename-path (old-folder new-folder)
1594 (let* ((old (directory-file-name (elmo-folder-msgdb-path old-folder)))
1595 (new (directory-file-name (elmo-folder-msgdb-path new-folder)))
1596 (new-dir (directory-file-name (file-name-directory new))))
1597 (if (not (file-directory-p old))
1599 (if (file-exists-p new)
1600 (error "Already exists directory: %s" new)
1601 (if (not (file-exists-p new-dir))
1602 (elmo-make-directory new-dir))
1603 (rename-file old new)))))
1605 (defun elmo-setup-subscribed-newsgroups (groups)
1606 "Setup subscribed newsgroups.
1607 GROUPS is a list of newsgroup name string.
1608 Return a hashtable for newsgroups."
1609 (let ((hashtb (or elmo-newsgroups-hashtb
1610 (setq elmo-newsgroups-hashtb
1611 (elmo-make-hash (length groups))))))
1612 (dolist (group groups)
1613 (or (elmo-get-hash-val group hashtb)
1614 (elmo-set-hash-val group nil hashtb)))
1615 (setq elmo-newsgroups-hashtb hashtb)))
1617 (defvar elmo-crosspost-message-alist-modified nil)
1618 (defun elmo-crosspost-message-alist-load ()
1619 "Load crosspost message alist."
1620 (setq elmo-crosspost-message-alist (elmo-crosspost-alist-load))
1621 (setq elmo-crosspost-message-alist-modified nil))
1623 (defun elmo-crosspost-message-alist-save ()
1624 "Save crosspost message alist."
1625 (when elmo-crosspost-message-alist-modified
1626 (let ((alist elmo-crosspost-message-alist)
1632 (not (intern-soft x elmo-newsgroups-hashtb)))
1633 (nth 1 (car alist))))
1635 (setcar (cdar alist) newsgroups)
1636 (setq elmo-crosspost-message-alist
1637 (delete (car alist) elmo-crosspost-message-alist)))
1638 (setq alist (cdr alist)))
1639 (elmo-crosspost-alist-save elmo-crosspost-message-alist)
1640 (setq elmo-crosspost-message-alist-modified nil))))
1642 (defun elmo-folder-make-temporary-directory (folder)
1643 ;; Make a temporary directory for FOLDER.
1644 (let ((temp-dir (make-temp-name
1646 (file-name-as-directory (elmo-folder-msgdb-path folder))
1648 (elmo-make-directory temp-dir)
1651 ;; Event notification/observer framework
1653 (luna-define-class elmo-event-handler ()))
1655 (luna-define-generic elmo-event-handler-flag-changed (handler numbers)
1656 "Notify flag of the messages with NUMBERS is changed.")
1658 (luna-define-generic elmo-event-handler-cache-changed (handler number)
1659 "Called when cache status of the message with NUMBER is changed.")
1661 (defun elmo-folder-add-handler (folder handler)
1662 (unless (memq handler (elmo-folder-handlers-internal folder))
1663 (elmo-folder-set-handlers-internal
1665 (cons handler (elmo-folder-handlers-internal folder)))))
1667 (defun elmo-folder-remove-handler (folder handler)
1668 (elmo-folder-set-handlers-internal
1670 (delq handler (elmo-folder-handlers-internal folder))))
1672 (defun elmo-folder-notify-event (folder event &rest args)
1673 (when (elmo-folder-handlers-internal folder)
1674 (let ((message (format "elmo-event-handler-%s" event)))
1675 (dolist (handler (elmo-folder-handlers-internal folder))
1676 (apply #'luna-send handler message handler args)))))
1680 "Initialize ELMO module."
1681 (elmo-crosspost-message-alist-load)
1682 (elmo-resque-obsolete-variables)
1683 (elmo-dop-queue-load)
1684 (run-hooks 'elmo-init-hook))
1687 "Quit and cleanup ELMO."
1688 (elmo-crosspost-message-alist-save)
1689 (elmo-dop-queue-save)
1690 ;; Not implemented yet.
1691 (let ((types elmo-folder-type-alist)
1696 (intern (format "elmo-%s-folder"
1697 (symbol-name (cdr (car types)))))))
1698 ;; Call all folder's `elmo-quit' method.
1700 (dolist (func (luna-class-find-functions class 'elmo-quit))
1701 (funcall func nil)))
1702 (setq types (cdr types)))))
1704 (luna-define-method elmo-folder-rename-internal ((folder elmo-folder)
1706 (error "Cannot rename %s folder"
1707 (symbol-name (elmo-folder-type-internal folder))))
1710 (elmo-define-folder ?% 'imap4)
1711 (elmo-define-folder ?- 'nntp)
1712 (elmo-define-folder ?\+ 'localdir)
1713 (elmo-define-folder ?\* 'multi)
1714 (elmo-define-folder ?\/ 'filter)
1715 (elmo-define-folder ?\$ 'archive)
1716 (elmo-define-folder ?& 'pop3)
1717 (elmo-define-folder ?= 'localnews)
1718 (elmo-define-folder ?| 'pipe)
1719 (elmo-define-folder ?. 'maildir)
1720 (elmo-define-folder ?' 'internal)
1721 (elmo-define-folder ?\[ 'nmz)
1722 (elmo-define-folder ?@ 'shimbun)
1724 ;;; Obsolete variables.
1725 (elmo-define-obsolete-variable 'elmo-default-imap4-mailbox
1726 'elmo-imap4-default-mailbox)
1727 (elmo-define-obsolete-variable 'elmo-default-imap4-server
1728 'elmo-imap4-default-server)
1729 (elmo-define-obsolete-variable 'elmo-default-imap4-authenticate-type
1730 'elmo-imap4-default-authenticate-type)
1731 (elmo-define-obsolete-variable 'elmo-default-imap4-user
1732 'elmo-imap4-default-user)
1733 (elmo-define-obsolete-variable 'elmo-default-imap4-port
1734 'elmo-imap4-default-port)
1735 (elmo-define-obsolete-variable 'elmo-default-imap4-stream-type
1736 'elmo-imap4-default-stream-type)
1737 (elmo-define-obsolete-variable 'elmo-default-nntp-server
1738 'elmo-nntp-default-server)
1739 (elmo-define-obsolete-variable 'elmo-default-nntp-user
1740 'elmo-nntp-default-user)
1741 (elmo-define-obsolete-variable 'elmo-default-nntp-port
1742 'elmo-nntp-default-port)
1743 (elmo-define-obsolete-variable 'elmo-default-nntp-stream-type
1744 'elmo-nntp-default-stream-type)
1745 (elmo-define-obsolete-variable 'elmo-default-pop3-server
1746 'elmo-pop3-default-server)
1747 (elmo-define-obsolete-variable 'elmo-default-pop3-user
1748 'elmo-pop3-default-user)
1749 (elmo-define-obsolete-variable 'elmo-default-pop3-authenticate-type
1750 'elmo-pop3-default-authenticate-type)
1751 (elmo-define-obsolete-variable 'elmo-default-pop3-port
1752 'elmo-pop3-default-port)
1753 (elmo-define-obsolete-variable 'elmo-default-pop3-stream-type
1754 'elmo-pop3-default-stream-type)
1755 (elmo-define-obsolete-variable 'elmo-cache-dirname
1756 'elmo-cache-directory)
1757 (elmo-define-obsolete-variable 'elmo-msgdb-dir
1758 'elmo-msgdb-directory)
1759 (elmo-define-obsolete-variable 'elmo-global-flag-list
1762 ;; Obsolete functions.
1763 ;; 2001-12-11: *-dir -> *-directory
1764 (defalias 'elmo-folder-make-temp-dir 'elmo-folder-make-temporary-directory)
1765 (make-obsolete 'elmo-folder-make-temp-dir
1766 'elmo-folder-make-temporary-directory)
1769 (product-provide (provide 'elmo) (require 'elmo-version))
1771 ;;; elmo.el ends here