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
38 (require 'elmo-signal)
40 (eval-when-compile (require 'cl))
42 (if (or (featurep 'dbm)
45 (featurep 'berkeley-db))
46 (require 'elmo-database))
48 (defcustom elmo-message-fetch-threshold 30000
50 :type '(choice (integer :tag "Threshold (bytes)")
51 (const :tag "No limitation" nil))
54 (defcustom elmo-message-fetch-confirm t
55 "If non-nil, confirm fetching if message size is larger than
56 `elmo-message-fetch-threshold'.
57 Otherwise, entire fetching of the message is aborted without confirmation."
61 (defcustom elmo-folder-update-threshold 500
63 :type '(choice (integer :tag "Number of messages")
64 (const :tag "No limitation" nil))
67 (defcustom elmo-folder-update-confirm t
68 "Confirm if update number exceeds `elmo-folder-update-threshold'."
72 (defcustom elmo-msgdb-path-encode-threshold nil
73 "*Encode msgdb path if its length is longer than this value."
74 :type '(choice (const :tag "No encode" nil)
78 (defvar elmo-message-displaying nil
79 "A global switch to indicate message is displaying or not.")
82 (defvar elmo-folder-type-alist nil)
84 (defvar elmo-newsgroups-hashtb nil)
86 (elmo-define-error 'elmo-error "Error" 'error)
87 (elmo-define-error 'elmo-open-error "Cannot open" 'elmo-error)
88 (elmo-define-error 'elmo-authenticate-error "Login failed" 'elmo-open-error)
89 (elmo-define-error 'elmo-imap4-bye-error "IMAP4 session was terminated" 'elmo-open-error)
92 (elmo-define-signal flag-changing (number old-flags new-flags)
93 "Notify the changing flag of the messages with NUMBER.")
95 (elmo-define-signal flag-changed (numbers)
96 "Notify the change flag of the messages with NUMBERS.")
98 (elmo-define-signal cache-changed (number)
99 "Notify the change cache status of the message with NUMBER.")
101 (elmo-define-signal update-overview (number)
102 "Notify update overview of the message with NUMBER.")
106 (autoload 'md5 "md5")
107 (autoload 'elmo-dop-queue-flush "elmo-dop")
108 (autoload 'elmo-nntp-post "elmo-nntp")
109 (autoload 'elmo-global-flag-p "elmo-flag")
110 (autoload 'elmo-local-flag-p "elmo-flag")
111 (autoload 'elmo-global-flag-detach "elmo-flag")
112 (autoload 'elmo-global-flag-detach-messages "elmo-flag")
113 (autoload 'elmo-global-flag-set "elmo-flag")
114 (autoload 'elmo-get-global-flags "elmo-flag")
115 (autoload 'elmo-global-mark-migrate "elmo-flag")
116 (autoload 'elmo-folder-list-global-flag-messages "elmo-flag"))
118 (defun elmo-define-folder (prefix backend)
120 If a folder name begins with PREFIX, use BACKEND."
121 (let ((pair (assq prefix elmo-folder-type-alist)))
125 (setcdr pair backend))
126 (setq elmo-folder-type-alist (cons (cons prefix backend)
127 elmo-folder-type-alist)))))
129 (defmacro elmo-folder-type (name)
130 "Get folder type from NAME string."
131 `(and (stringp ,name)
132 (cdr (assoc (string-to-char ,name) elmo-folder-type-alist))))
135 ;; A elmo folder provides uniformed (orchestrated) access
136 ;; to the internet messages.
138 (luna-define-class elmo-folder () (type ; folder type symbol.
139 name ; orignal folder name string.
140 prefix ; prefix for folder name
141 path ; directory path for msgdb.
142 msgdb ; msgdb (may be nil).
143 killed-list ; killed list.
144 flag-table ; flag table.
145 persistent ; non-nil if persistent.
146 process-duplicates ; read or hide
147 biff ; folder for biff
149 (luna-define-internal-accessors 'elmo-folder))
151 (luna-define-generic elmo-folder-initialize (folder name)
152 ;; Initialize a FOLDER structure with NAME."
155 (defmacro elmo-folder-send (folder message &rest args)
156 "Let FOLDER receive the MESSAGE with ARGS."
157 (` (luna-send (, folder) (, message) (, folder) (,@ args))))
160 (defun elmo-make-folder (name &optional non-persistent)
161 "Make an ELMO folder structure specified by NAME.
162 If optional argument NON-PERSISTENT is non-nil, the folder msgdb is not saved."
163 (let ((type (elmo-folder-type name))
164 prefix split class folder original)
165 (setq original (elmo-string name))
168 (setq prefix (elmo-string (substring name 0 1)))
169 (setq name (elmo-string (substring name 1))))
170 (setq type (intern (car (setq split (split-string name ":")))))
171 (if (>= (length split) 2)
172 (setq name (substring name (+ 1 (length (car split)))))
173 (error "Error in folder name `%s'" original))
174 (setq prefix (concat (car split) ":")))
175 (setq class (format "elmo-%s" (symbol-name type)))
176 (require (intern class))
177 (setq folder (luna-make-entity (intern (concat class "-folder"))
181 :persistent (not non-persistent)))
183 (elmo-folder-send folder 'elmo-folder-initialize name))))
185 ;; Note that this function is for internal use only.
186 (luna-define-generic elmo-folder-msgdb (folder)
187 "Return the msgdb of FOLDER (on-demand loading).
188 \(For internal use only.\)")
190 (luna-define-method elmo-folder-msgdb ((folder elmo-folder))
191 (or (elmo-folder-msgdb-internal folder)
192 (elmo-folder-set-msgdb-internal folder
193 (elmo-folder-msgdb-load folder))))
195 (luna-define-generic elmo-folder-open (folder &optional load-msgdb)
196 "Open and setup (load saved status) FOLDER.
197 If optional LOAD-MSGDB is non-nil, msgdb is loaded.
198 \(otherwise, msgdb is loaded on-demand)")
200 (luna-define-generic elmo-folder-open-internal (folder)
201 "Open FOLDER (without loading saved folder status).")
203 (luna-define-generic elmo-folder-check (folder)
204 "Check the FOLDER to obtain newest information at the next list operation.")
206 (luna-define-generic elmo-folder-clear (folder &optional keep-killed)
207 "Clear FOLDER to the initial state.
208 If optional KEEP-KILLED is non-nil, killed-list is not cleared.")
210 (luna-define-generic elmo-folder-commit (folder)
211 "Save current status of FOLDER.")
213 (luna-define-generic elmo-folder-close (folder)
214 "Close, save and clearnup FOLDER.")
216 (luna-define-generic elmo-folder-close-internal (folder)
217 "Close FOLDER (without saving folder status).")
219 (luna-define-generic elmo-folder-plugged-p (folder)
220 "Returns t if FOLDER is plugged.")
222 (luna-define-generic elmo-folder-set-plugged (folder plugged &optional add)
223 "Set FOLDER as plugged.")
225 (luna-define-generic elmo-net-port-info (folder)
226 "Get port information of FOLDER.")
228 (luna-define-generic elmo-folder-use-flag-p (folder)
229 "Returns t if FOLDER treats unread/important flag itself.")
231 (luna-define-generic elmo-folder-diff (folder)
233 Return value is cons cell or list:
234 - a cons cell (new . all)
235 - a list (new unread all)")
237 (luna-define-generic elmo-folder-status (folder)
238 "Returns a cons cell of (MAX-NUMBER . MESSAGES) in the FOLDER.")
240 (luna-define-generic elmo-folder-reserve-status-p (folder)
241 "If non-nil, the folder should not close folder after `elmo-folder-status'.")
243 (luna-define-generic elmo-folder-list-messages (folder &optional visible-only
245 "Return a list of message numbers contained in FOLDER.
246 If optional VISIBLE-ONLY is non-nil, killed messages are not listed.
247 If second optional IN-MSGDB is non-nil, only messages in the msgdb are listed.")
249 (luna-define-method elmo-folder-list-messages ((folder elmo-folder)
250 &optional visible-only in-msgdb)
251 (let ((list (if in-msgdb
253 (elmo-folder-list-messages-internal folder visible-only)))
254 (killed-list (elmo-folder-killed-list-internal folder)))
257 (setq list (elmo-msgdb-list-messages (elmo-folder-msgdb folder))))
259 (elmo-living-messages list killed-list)
260 (if (and in-msgdb killed-list)
261 (elmo-uniq-sorted-list
262 (sort (nconc (elmo-number-set-to-number-list killed-list) list) #'<)
266 (luna-define-generic elmo-folder-list-messages-internal (folder &optional
268 ;; Return a list of message numbers contained in FOLDER.
269 ;; Return t if the message list is not available.
272 (luna-define-generic elmo-folder-list-flagged (folder flag &optional in-msgdb)
273 "List messages in the FOLDER with FLAG.
274 FLAG is a symbol which is one of the following:
276 `unread' (unread messages (new messages are included))
277 `answered' (answered or forwarded)
278 `important' (marked as important)
281 `digest' (unread + important + other flags)
282 `any' (digest + answered + other flags)
283 If optional IN-MSGDB is non-nil, retrieve flag information from msgdb.")
285 (luna-define-method elmo-folder-list-flagged ((folder elmo-folder) flag
287 (let ((msgs (if in-msgdb
289 (elmo-folder-list-flagged-internal folder flag))))
291 (setq msgs (elmo-msgdb-list-flagged (elmo-folder-msgdb folder) flag)))
295 (nconc (elmo-folder-list-global-flag-messages folder flag) msgs)
298 (luna-define-generic elmo-folder-list-flagged-internal (folder flag)
299 "Return a list of message in the FOLDER with FLAG.
300 Return t if the message list is not available.")
302 (luna-define-method elmo-folder-list-flagged-internal ((folder elmo-folder)
306 (luna-define-generic elmo-folder-list-subfolders (folder &optional one-level)
307 "Returns a list of subfolders contained in FOLDER.
308 If optional argument ONE-LEVEL is non-nil, only children of FOLDER is returned.
309 \(a folder which have children is returned as a list\)
310 Otherwise, all descendent folders are returned.")
312 (luna-define-generic elmo-folder-have-subfolder-p (folder)
313 "Return non-nil when FOLDER has subfolders.")
315 (luna-define-generic elmo-folder-exists-p (folder)
316 "Returns non-nil when FOLDER exists.")
318 (luna-define-generic elmo-folder-creatable-p (folder)
319 "Returns non-nil when FOLDER is creatable.")
321 (luna-define-generic elmo-folder-writable-p (folder)
322 "Returns non-nil when FOLDER is writable.")
324 (luna-define-generic elmo-folder-persistent-p (folder)
325 "Return non-nil when FOLDER is persistent.")
327 (luna-define-generic elmo-folder-create (folder)
330 (luna-define-generic elmo-message-deletable-p (folder number)
331 "Returns non-nil when the message in the FOLDER with NUMBER is deletable.")
333 (luna-define-generic elmo-folder-delete (folder)
334 "Delete FOLDER completely.")
336 (luna-define-generic elmo-folder-rename (folder new-name)
337 "Rename FOLDER to NEW-NAME (string).")
339 (luna-define-generic elmo-folder-delete-messages (folder numbers)
340 "Delete messages with msgdb entity.
341 FOLDER is the ELMO folder structure.
342 NUMBERS is a list of message numbers to be deleted.
343 It is not recommended to use this function other than internal use.
344 Use `elmo-folder-move-messages' with dst-folder 'null instead.")
346 (luna-define-generic elmo-folder-delete-messages-internal (folder numbers)
347 "Delete messages, but no delete msgdb entity.
348 FOLDER is the ELMO folder structure.
349 NUMBERS is a list of message numbers to be deleted.
350 Override this method by each implement of `elmo-folder'.")
352 (luna-define-generic elmo-folder-search (folder condition &optional numbers)
353 "Search and return list of message numbers.
354 FOLDER is the ELMO folder structure.
355 CONDITION is a condition structure for searching.
356 If optional argument NUMBERS is specified and is a list of message numbers,
357 messages are searched from the list.")
359 (luna-define-generic elmo-message-match-condition (folder number
362 "Return non-nil when the message in the FOLDER with NUMBER is matched.
363 CONDITION is a condition structure for testing.
364 NUMBERS is a list of message numbers,
365 use to be test for \"last\" and \"first\" predicates.")
367 (luna-define-generic elmo-folder-msgdb-create (folder numbers flag-table)
368 "Create a message database (implemented in each backends).
369 FOLDER is the ELMO folder structure.
370 NUMBERS is a list of message numbers to create msgdb.
371 FLAG-TABLE is a hashtable of message-id and flag.")
373 (luna-define-generic elmo-folder-set-flag (folder numbers flag
376 FOLDER is a ELMO folder structure.
377 NUMBERS is a list of message number to set flag.
379 FLAG is a symbol which is one of the following:
380 `unread' (set the message as unread)
381 `answered' (set the message as answered)
382 `important' (set the message as important)
384 `read' (remove new and unread flags)
385 If optional IS-LOCAL is non-nil, update only local (not server) status.")
387 (luna-define-generic elmo-folder-unset-flag (folder numbers flag
389 "Unset messages flag.
390 FOLDER is a ELMO folder structure.
391 NUMBERS is a list of message number to unset flag.
393 FLAG is a symbol which is one of the following:
394 `unread' (remove unread and new flag)
395 `answered' (remove answered flag)
396 `important' (remove important flag)
398 `read' (set unread flag)
399 `all' (remove all flags)
400 If optional IS-LOCAL is non-nil, update only local (not server) status.")
402 (luna-define-generic elmo-message-flag-available-p (folder number flag)
403 "Return non-nil when a message in the FOLDER with NUMBER treats FLAG.")
405 (luna-define-generic elmo-folder-next-message-number (folder)
406 "The next message number that will be assigned to a new message.
407 FOLDER is the ELMO folder structure.")
409 (luna-define-generic elmo-folder-append-buffer (folder &optional flags
411 "Append current buffer as a new message.
412 FOLDER is the destination folder (ELMO folder structure).
413 FLAGS is the flag list for the appended message (list of symbols).
414 If FLAGS contain `read', the message is appended as `not-unread'.
415 If it is nil, the appended message will be treated as `new'.
416 If optional argument NUMBER is specified, the new message number is set
418 Return nil on failure.")
420 (luna-define-generic elmo-folder-append-messages (folder
425 "Append messages from folder.
426 FOLDER is the ELMO folder structure.
427 Caller should make sure FOLDER is `writable'.
428 \(Can be checked with `elmo-folder-writable-p'\).
429 SRC-FOLDER is the source ELMO folder structure.
430 NUMBERS is the message numbers to be appended in the SRC-FOLDER.
431 If second optional argument SAME-NUMBER is specified,
432 message number is preserved \(if possible\).
433 Returns a list of message numbers successfully appended.")
435 (luna-define-generic elmo-folder-pack-numbers (folder)
436 "Pack message numbers of FOLDER.")
438 (luna-define-generic elmo-folder-update-number (folder)
439 "Update number of FOLDER.")
441 (luna-define-generic elmo-folder-diff-async (folder)
442 "Get diff of FOLDER asynchronously.")
444 (luna-define-generic elmo-folder-expand-msgdb-path (folder)
445 "Expand path for FOLDER.")
447 (luna-define-generic elmo-folder-get-primitive-list (folder)
448 "Get primitive folder structure list contained in FOLDER.")
450 (luna-define-generic elmo-folder-contains-type (folder type)
451 "Returns t if FOLDER contains TYPE.")
453 (luna-define-generic elmo-folder-local-p (folder)
454 "Returns t if FOLDER is local.")
456 (luna-define-generic elmo-folder-message-file-p (folder)
457 "Returns t if all messages in the FOLDER are files.")
460 (luna-define-generic elmo-message-use-cache-p (folder number)
461 "Returns t if the message in the FOLDER with NUMBER uses cache.")
463 (luna-define-generic elmo-message-file-name (folder number)
464 "Return the file name of a message specified by FOLDER and NUMBER.")
468 ;;; Use original file
469 (luna-define-generic elmo-folder-message-file-number-p (folder)
470 "Return t if the file name in the FOLDER is the message number.")
472 (luna-define-generic elmo-folder-message-file-directory (folder)
473 "Return the directory of the message files of FOLDER.")
475 ;;; Use temporary file
476 (luna-define-generic elmo-folder-message-make-temp-file-p (folder)
477 "Return t if the messages in the FOLDER makes local temporary file.")
479 (luna-define-generic elmo-folder-message-make-temp-files (folder
483 "Make a new temporary files from the messages in the FOLDER with NUMBERS.
484 If START-NUMBER is specified, temporary files begin from the number.
485 Otherwise, same number is used for temporary files.
486 Return newly created temporary directory name which contains temporary files.")
488 (luna-define-generic elmo-message-file-p (folder number)
489 "Return t if message in the FOLDER with NUMBER is a file.")
491 (luna-define-generic elmo-message-flags (folder number)
492 "Return a list of flags.
493 FOLDER is a ELMO folder structure.
494 NUMBER is a number of the message.")
496 (defun elmo-message-flags-for-append (folder number &optional message-id)
497 "Return a list of flags for `elmo-folder-append-buffer'.
498 FOLDER is a ELMO folder structure.
499 NUMBER is a number of the message.
500 If optional argument MESSAGES-ID is not specified, get it from current buffer."
501 (let ((this-id (elmo-message-field folder number 'message-id)))
503 (string= this-id (or message-id
504 (elmo-msgdb-get-message-id-from-buffer)))
505 (or (elmo-message-flags folder number)
506 ;; message exists, but no flag.
509 (luna-define-method elmo-message-flag-available-p ((folder elmo-folder) number
511 (elmo-msgdb-flag-available-p (elmo-folder-msgdb folder) flag))
513 (luna-define-method elmo-message-flags ((folder elmo-folder) number)
514 (elmo-msgdb-flags (elmo-folder-msgdb folder) number))
516 (defsubst elmo-message-flagged-p (folder number flag)
517 "Return non-nil if the message is set FLAG.
518 FOLDER is a ELMO folder structure.
519 NUMBER is a message number to test."
520 (let ((cur-flags (elmo-message-flags folder number)))
523 (not (memq 'unread cur-flags)))
525 (memq flag cur-flags)))))
527 (luna-define-generic elmo-find-fetch-strategy (folder number
531 "Return the message fetching strategy suitable for the message with NUMBER.
532 FOLDER is the ELMO folder structure.
533 If optional argument IGNORE-CACHE is non-nil, existing cache is ignored.
534 If second optional argument REQUIRE-ENTIRENESS is non-nil,
535 ensure that entireness of the returned strategy is entire.
536 Returned value is a elmo-fetch-strategy object.
537 If return value is nil, message should not be nil.")
539 (defmacro elmo-make-fetch-strategy (entireness
544 "Make elmo-message-fetching strategy.
545 ENTIRENESS is 'entire or 'section.
546 'entire means fetch message entirely at once.
547 'section means fetch message section by section.
548 If optional USE-CACHE is non-nil, existing cache is used and otherwise,
549 existing cache is thrown away.
550 If SAVE-CACHE is non-nil, fetched message is saved.
551 CACHE-PATH is the cache path to be used as a message cache file."
552 `(vector ,entireness ,use-cache ,save-cache ,cache-path))
554 (defmacro elmo-fetch-strategy-entireness (strategy)
555 "Return entireness of STRATEGY."
558 (defmacro elmo-fetch-strategy-use-cache (strategy)
559 "Return use-cache of STRATEGY."
562 (defmacro elmo-fetch-strategy-save-cache (strategy)
563 "Return save-cache of STRATEGY."
566 (defmacro elmo-fetch-strategy-cache-path (strategy)
567 "Return cache-path of STRATEGY."
570 (luna-define-method elmo-find-fetch-strategy ((folder elmo-folder) number
574 (let ((entity (elmo-message-entity folder number)))
576 (elmo-make-fetch-strategy 'entire)
577 (let* ((size (elmo-message-entity-field entity 'size))
578 (message-id (elmo-message-entity-field entity 'message-id))
579 (cache-file (elmo-file-cache-get message-id))
580 (use-cache (elmo-message-use-cache-p folder number)))
581 (if (and (not ignore-cache)
583 (eq (elmo-file-cache-status cache-file) 'entire))
584 ;; Cache exists and use it.
585 (elmo-make-fetch-strategy
588 use-cache ; Save cache.
589 (elmo-file-cache-path cache-file))
590 ;; No cache or ignore-cache.
591 (if (and (not (elmo-folder-local-p folder))
592 (not require-entireness)
593 elmo-message-fetch-threshold
595 (>= size elmo-message-fetch-threshold)
596 (or (not elmo-message-fetch-confirm)
599 (format "Fetch entire message(%dbytes)? "
602 ;; Don't fetch message at all.
604 ;; Don't use existing cache and fetch entire message at once.
605 (elmo-make-fetch-strategy
607 nil ; Don't use cache.
608 use-cache ; Save cache.
609 (elmo-file-cache-path cache-file))))))))
611 (luna-define-method elmo-folder-list-messages-internal
612 ((folder elmo-folder) &optional visible-only)
615 (luna-define-generic elmo-message-encache (folder number &optional read)
616 "Encache message in the FOLDER with NUMBER.
617 If READ is non-nil, message is flaged as read.")
619 (luna-define-method elmo-message-encache ((folder elmo-folder) number
625 (elmo-make-fetch-strategy 'entire
628 (setq path (elmo-file-cache-get-path
630 folder number 'message-id))))
634 (luna-define-generic elmo-message-fetch-bodystructure (folder number strategy)
635 "Fetch bodystructure of the message in FOLDER with NUMBER using STRATEGY.")
637 (luna-define-generic elmo-message-fetch (folder number strategy
641 "Fetch a message into current buffer.
642 FOLDER is the ELMO folder structure.
643 NUMBER is the number of the message in the FOLDER.
644 STRATEGY is the message fetching strategy.
645 If optional argument UNREAD is non-nil, message is not flaged as read.
646 If second optional argument SECTION is specified, only the
647 SECTION of the message is fetched (if possible).
648 Returns non-nil if fetching was succeed.")
650 (luna-define-generic elmo-message-fetch-internal (folder number strategy
654 "Fetch a message into current buffer.
655 FOLDER is the ELMO folder structure.
656 NUMBER is the number of the message in the FOLDER.
657 STRATEGY is the message fetching strategy.
658 If optional argument SECTION is specified, only the SECTION of the message
659 is fetched (if possible).
660 If second optional argument UNREAD is non-nil, message is not flaged as read.
661 Returns non-nil if fetching was succeed.")
663 (luna-define-generic elmo-message-fetch-field (folder number field)
664 "Fetch a message field value.
665 FOLDER is the ELMO folder structure.
666 NUMBER is the number of the message in the FOLDER.
667 FIELD is a symbol of the field name.")
669 (luna-define-generic elmo-message-folder (folder number)
670 "Get primitive folder of the message.")
672 (luna-define-generic elmo-folder-process-crosspost (folder)
673 "Process crosspost for FOLDER.
674 Return a cons cell of (NUMBER-CROSSPOSTS . NEW-FLAG-ALIST).")
676 (luna-define-generic elmo-folder-newsgroups (folder)
677 "Return list of newsgroup name of FOLDER.")
679 (luna-define-generic elmo-folder-search-requires-msgdb-p (folder condition)
680 "Return non-nil if searching in FOLDER by CONDITION requires msgdb fetch.")
682 (defun elmo-folder-search-requires-msgdb-p-internal (folder condition)
683 (if (listp condition)
684 (or (elmo-folder-search-requires-msgdb-p-internal
685 folder (nth 1 condition))
686 (elmo-folder-search-requires-msgdb-p-internal
687 folder (nth 2 condition)))
688 (and (not (string= (elmo-filter-key condition) "last"))
689 (not (string= (elmo-filter-key condition) "first")))))
691 (luna-define-method elmo-folder-search-requires-msgdb-p ((folder elmo-folder)
693 (elmo-folder-search-requires-msgdb-p-internal folder condition))
695 (luna-define-method elmo-folder-newsgroups ((folder elmo-folder))
698 (luna-define-method elmo-folder-open ((folder elmo-folder)
699 &optional load-msgdb)
700 (elmo-generic-folder-open folder load-msgdb))
702 (defun elmo-generic-folder-open (folder load-msgdb)
703 (let ((inhibit-quit t))
704 (if load-msgdb (elmo-folder-msgdb folder))
705 (elmo-folder-set-killed-list-internal
707 (elmo-msgdb-killed-list-load (elmo-folder-msgdb-path folder))))
708 (elmo-folder-open-internal folder))
710 (luna-define-method elmo-folder-open-internal ((folder elmo-folder))
711 nil ; default is do nothing.
714 (luna-define-method elmo-folder-check ((folder elmo-folder))
715 nil) ; default is noop.
717 (luna-define-method elmo-folder-commit ((folder elmo-folder))
718 (elmo-generic-folder-commit folder))
720 (defun elmo-generic-folder-commit (folder)
721 (when (elmo-folder-persistent-p folder)
722 (let ((msgdb (elmo-folder-msgdb-internal folder)))
724 (when (elmo-msgdb-message-modified-p msgdb)
725 (elmo-folder-set-info-max-by-numdb
727 (elmo-folder-list-messages folder nil 'in-msgdb)))
728 (elmo-msgdb-save msgdb)))
729 (elmo-msgdb-killed-list-save
730 (elmo-folder-msgdb-path folder)
731 (elmo-folder-killed-list-internal folder))))
733 (luna-define-method elmo-folder-close-internal ((folder elmo-folder))
737 (luna-define-method elmo-folder-close ((folder elmo-folder))
738 (elmo-generic-folder-close folder)
739 (elmo-folder-close-internal folder))
741 (defun elmo-generic-folder-close (folder)
742 (elmo-folder-commit folder)
743 (elmo-folder-set-msgdb-internal folder nil)
744 (elmo-folder-set-killed-list-internal folder nil))
746 (luna-define-method elmo-folder-plugged-p ((folder elmo-folder))
747 t) ; default is plugged.
749 (luna-define-method elmo-folder-set-plugged ((folder elmo-folder) plugged
751 nil) ; default is do nothing.
753 (luna-define-method elmo-folder-use-flag-p ((folder elmo-folder))
754 nil) ; default is no flag.
756 (luna-define-method elmo-folder-persistent-p ((folder elmo-folder))
757 (elmo-folder-persistent-internal folder))
759 (luna-define-method elmo-folder-creatable-p ((folder elmo-folder))
760 nil) ; default is not creatable.
762 (luna-define-method elmo-folder-writable-p ((folder elmo-folder))
763 nil) ; default is not writable.
765 (luna-define-method elmo-folder-delete ((folder elmo-folder))
766 (when (yes-or-no-p (format "Delete msgdb of \"%s\"? "
767 (elmo-folder-name-internal folder)))
768 (elmo-msgdb-delete-path folder)
771 (luna-define-method elmo-folder-rename ((folder elmo-folder) new-name)
772 (let* ((new-folder (elmo-make-folder new-name)))
773 (unless (eq (elmo-folder-type-internal folder)
774 (elmo-folder-type-internal new-folder))
775 (error "Not same folder type"))
776 (if (or (file-exists-p (elmo-folder-msgdb-path new-folder))
777 (elmo-folder-exists-p new-folder))
778 (error "Already exists folder: %s" new-name))
779 (elmo-folder-send folder 'elmo-folder-rename-internal new-folder)
780 (elmo-msgdb-rename-path folder new-folder)))
782 (luna-define-method elmo-folder-delete-messages ((folder elmo-folder)
784 (and (elmo-folder-delete-messages-internal folder numbers)
785 (elmo-folder-detach-messages folder numbers)))
787 (luna-define-method elmo-folder-search ((folder elmo-folder)
790 (let ((numbers (or numbers (elmo-folder-list-messages folder)))
791 (msgdb (elmo-folder-msgdb folder))
793 (setq results (elmo-msgdb-search msgdb condition numbers))
796 (let ((len (length numbers))
798 (elmo-with-progress-display (> len elmo-display-progress-threshold)
799 (elmo-folder-search len "Searching...")
800 (dolist (number numbers)
802 (setq result (elmo-msgdb-match-condition msgdb
806 (when (elmo-filter-condition-p result)
807 (setq result (elmo-message-match-condition folder
812 (setq matched (cons number matched))))
813 (elmo-progress-notify 'elmo-folder-search)))
814 (message "Searching...done")
815 (nreverse matched)))))
817 (luna-define-method elmo-message-match-condition ((folder elmo-folder)
820 (let* (cache cache-path
822 ((elmo-message-file-name folder number))
824 (setq cache (elmo-file-cache-get
825 (elmo-message-field folder number
827 (setq cache-path (elmo-file-cache-path cache))
829 (not (elmo-cache-path-section-p cache-path))))
831 (when (and filename (file-readable-p filename))
833 (set-buffer-multibyte nil)
834 ;;(insert-file-contents-as-binary filename)
835 (elmo-message-fetch folder number
836 (elmo-make-fetch-strategy 'entire
841 (set-buffer-multibyte default-enable-multibyte-characters)
842 (decode-coding-region (point-min) (point-max)
843 elmo-mime-display-as-is-coding-system)
844 (elmo-buffer-field-condition-match condition number numbers)))))
846 (luna-define-method elmo-folder-pack-numbers ((folder elmo-folder))
847 nil) ; default is noop.
849 (luna-define-method elmo-folder-update-number ((folder elmo-folder))
850 nil) ; default is noop.
852 (luna-define-method elmo-folder-message-file-p ((folder elmo-folder))
853 nil) ; default is not file.
855 (luna-define-method elmo-folder-message-file-number-p ((folder elmo-folder))
856 nil) ; default is not number.
858 (luna-define-method elmo-folder-message-make-temp-file-p ((folder elmo-folder))
859 nil) ; default is not make temp file.
861 (luna-define-method elmo-message-file-name ((folder elmo-folder)
863 nil) ; default is no name.
865 (luna-define-method elmo-folder-local-p ((folder elmo-folder))
866 t) ; default is local.
868 (luna-define-method elmo-folder-have-subfolder-p ((folder elmo-folder))
872 (luna-define-generic elmo-folder-flag-table (folder &optional if-exists)
873 "Return the flag-table of FOLDER.
874 If optional argument IF-EXISTS is nil, load on demand.
875 \(For internal use only.\)")
877 (luna-define-generic elmo-folder-close-flag-table (folder)
878 "Close flag-table of FOLDER.")
880 (luna-define-method elmo-folder-flag-table ((folder elmo-folder)
882 (or (elmo-folder-flag-table-internal folder)
884 (elmo-folder-set-flag-table-internal
886 (elmo-flag-table-load (elmo-folder-msgdb-path folder))))))
888 (luna-define-method elmo-folder-close-flag-table ((folder elmo-folder))
889 (elmo-flag-table-save (elmo-folder-msgdb-path folder)
890 (elmo-folder-flag-table folder))
891 (elmo-folder-set-flag-table-internal folder nil))
893 (defun elmo-folder-preserve-flags (folder msgid flags)
894 "Preserve FLAGS into FOLDER for a message that has MSGID."
895 (when (and msgid flags)
896 (let ((flag-table (elmo-folder-flag-table folder 'if-exists))
898 (when (setq load-now (null flag-table))
899 (setq flag-table (elmo-folder-flag-table folder)))
900 (elmo-flag-table-set flag-table msgid flags)
902 (elmo-folder-close-flag-table folder)))))
905 ;; Folder info is a message number information cache (hashtable)
906 (defsubst elmo-folder-get-info (folder &optional hashtb)
907 "Return FOLDER info from HASHTB (default is `elmo-folder-info-hashtb')."
908 (elmo-get-hash-val (elmo-folder-name-internal folder)
909 (or hashtb elmo-folder-info-hashtb)))
911 (defun elmo-folder-set-info-hashtb (folder max numbers &optional new unread)
912 "Set FOLDER info (means MAX, NUMBERS, NEW and UNREAD)."
913 (let ((info (elmo-folder-get-info folder)))
915 (or new (setq new (nth 0 info)))
916 (or unread (setq unread (nth 1 info)))
917 (or numbers (setq numbers (nth 2 info)))
918 (or max (setq max (nth 3 info))))
919 (elmo-set-hash-val (elmo-folder-name-internal folder)
920 (list new unread numbers max)
921 elmo-folder-info-hashtb)))
923 (defun elmo-folder-set-info-max-by-numdb (folder numbers)
924 "Set FOLDER info by MSGDB-NUMBER in msgdb."
925 (elmo-folder-set-info-hashtb
927 (if numbers (apply #'max numbers) 0)
928 nil ;;(length num-db)
931 (defun elmo-folder-get-info-max (folder)
932 "Return max number of FODLER from folder info."
933 (nth 3 (elmo-folder-get-info folder)))
935 (defun elmo-folder-get-info-length (folder)
936 "Return length of FODLER from folder info."
937 (nth 2 (elmo-folder-get-info folder)))
939 (defun elmo-folder-get-info-unread (folder)
940 "Return unread of FODLER from folder info."
941 (nth 1 (elmo-folder-get-info folder)))
943 (defun elmo-folder-info-make-hashtb (info-alist hashtb)
944 "Setup folder info hashtable by INFO-ALIST on HASHTB."
945 (let* ((hashtb (or hashtb
946 (elmo-make-hash (length info-alist)))))
949 (let ((info (cadr x)))
950 (and (intern-soft (car x) hashtb)
951 (elmo-set-hash-val (car x)
952 (list (nth 2 info) ;; new
953 (nth 3 info) ;; unread
954 (nth 1 info) ;; length
958 (setq elmo-folder-info-hashtb hashtb)))
960 (defsubst elmo-diff-new (diff)
963 (defsubst elmo-diff-unread (diff)
964 (when (consp (cdr diff))
967 (defsubst elmo-diff-all (diff)
968 (if (consp (cdr diff))
972 (defsubst elmo-strict-folder-diff (folder)
973 "Return folder diff information strictly from FOLDER."
974 (let ((in-db (sort (elmo-folder-list-messages folder nil 'in-msgdb) '<))
975 (in-folder (elmo-folder-list-messages folder))
976 append-list delete-list diff)
977 (cons (if (equal in-folder in-db)
979 (setq diff (elmo-list-diff in-folder in-db))
980 (setq append-list (car diff))
981 (setq delete-list (cadr diff))
985 (- 0 (length delete-list))
987 (length in-folder))))
989 (luna-define-method elmo-folder-diff ((folder elmo-folder))
990 (elmo-generic-folder-diff folder))
992 (defun elmo-generic-folder-diff (folder)
993 (if (elmo-string-match-member (elmo-folder-name-internal folder)
994 elmo-strict-diff-folder-list)
995 (elmo-strict-folder-diff folder)
996 (let ((cached-in-db-max (elmo-folder-get-info-max folder))
997 (in-folder (elmo-folder-status folder))
1001 (if (not cached-in-db-max)
1002 (let ((number-list (elmo-folder-list-messages folder
1005 (setq in-db number-list)
1006 (setq in-db-max (if in-db (apply #'max in-db) 0))
1007 (elmo-folder-set-info-hashtb folder in-db-max nil))
1008 (setq in-db-max cached-in-db-max))
1009 (setq unsync (if (and in-db (car in-folder))
1010 (- (car in-folder) in-db-max)
1011 (if (and in-folder (null in-db))
1014 (setq messages (cdr in-folder))
1015 (if (and unsync messages (> unsync messages))
1016 (setq unsync messages))
1017 (cons (or unsync 0) (or messages 0)))))
1019 (defvar elmo-folder-diff-async-callback nil)
1020 (defvar elmo-folder-diff-async-callback-data nil)
1022 (luna-define-method elmo-folder-diff-async ((folder elmo-folder))
1023 (and elmo-folder-diff-async-callback
1024 (funcall elmo-folder-diff-async-callback
1026 (elmo-folder-diff folder))))
1028 (luna-define-method elmo-folder-get-primitive-list ((folder elmo-folder))
1031 (luna-define-method elmo-folder-contains-type ((folder elmo-folder) type)
1032 (eq (elmo-folder-type-internal folder) type))
1034 (luna-define-method elmo-folder-next-message-number ((folder elmo-folder))
1035 (+ 1 (elmo-max-of-list (or (elmo-folder-list-messages folder)
1038 (luna-define-method elmo-folder-append-messages ((folder elmo-folder)
1043 (elmo-generic-folder-append-messages folder src-folder numbers
1046 (defun elmo-generic-folder-append-messages (folder src-folder numbers
1048 (let ((src-msgdb-exists (not (zerop (elmo-folder-length src-folder))))
1050 succeed-numbers failure cache id)
1051 (setq table (elmo-folder-flag-table folder))
1053 (set-buffer-multibyte nil)
1056 id (and src-msgdb-exists
1057 (elmo-message-field src-folder (car numbers)
1060 (setq cache (elmo-file-cache-get id)
1065 src-folder (car numbers)
1066 (if (elmo-folder-plugged-p src-folder)
1067 (elmo-make-fetch-strategy
1069 (and cache (elmo-file-cache-path cache)))
1070 (or (and elmo-enable-disconnected-operation
1072 (eq (elmo-file-cache-status cache) 'entire)
1073 (elmo-make-fetch-strategy
1075 (elmo-file-cache-path cache)))
1076 (error "Unplugged")))
1079 (elmo-folder-append-buffer
1081 (elmo-message-flags-for-append src-folder (car numbers))
1082 (if same-number (car numbers))))))
1083 (error (setq failure t)))
1084 ;; FETCH & APPEND finished
1086 (setq succeed-numbers (cons (car numbers) succeed-numbers)))
1087 (elmo-progress-notify 'elmo-folder-move-messages)
1088 (setq numbers (cdr numbers)))
1089 (when (elmo-folder-persistent-p folder)
1090 (elmo-folder-close-flag-table folder))
1093 ;; Arguments should be reduced.
1094 (defun elmo-folder-move-messages (src-folder msgs dst-folder
1099 (let* ((messages msgs)
1100 (elmo-inhibit-display-retrieval-progress t)
1103 (if (eq dst-folder 'null)
1104 (setq succeeds messages)
1105 (unless (elmo-folder-writable-p dst-folder)
1106 (error "move: %d is not writable"
1107 (elmo-folder-name-internal dst-folder)))
1109 ;; src is already opened.
1110 (elmo-folder-open-internal dst-folder)
1111 (unless (setq succeeds (elmo-folder-append-messages dst-folder
1115 (error "move: append message to %s failed"
1116 (elmo-folder-name-internal dst-folder)))
1117 (elmo-folder-close dst-folder)))
1118 (if (and (not no-delete) succeeds)
1120 (if (elmo-folder-delete-messages src-folder succeeds)
1122 (elmo-global-flag-detach-messages
1123 src-folder succeeds (eq dst-folder 'null))
1125 (message "move: delete messages from %s failed."
1126 (elmo-folder-name-internal src-folder))
1131 ;; (message "Copying messages...done")
1134 (message "No message was moved.")
1135 (message "Moving messages failed.")
1139 (defun elmo-folder-msgdb-path (folder)
1140 "Return the msgdb path for FOLDER."
1141 (or (elmo-folder-path-internal folder)
1142 (elmo-folder-set-path-internal
1144 (if (null elmo-msgdb-path-encode-threshold)
1145 (elmo-folder-expand-msgdb-path folder)
1146 (let* ((path (directory-file-name
1147 (elmo-folder-expand-msgdb-path folder)))
1148 (dirname (file-name-nondirectory path)))
1149 (if (<= (length dirname) elmo-msgdb-path-encode-threshold)
1152 (setq dirname (md5 dirname))
1153 (when (> (length dirname) elmo-msgdb-path-encode-threshold)
1154 (error "Cannot shrink msgdb path for `%s'"
1155 (elmo-folder-name-internal folder)))
1156 (expand-file-name dirname (file-name-directory path))))))))
1158 (luna-define-generic elmo-message-cached-p (folder number)
1159 "Return non-nil if the message is cached.")
1161 (luna-define-method elmo-message-cached-p ((folder elmo-folder) number)
1162 (elmo-message-flagged-p folder number 'cached))
1164 (defun elmo-message-accessible-p (folder number)
1165 "Get accessibility of the message.
1166 Return non-nil when message is accessible."
1167 (or (elmo-folder-plugged-p folder)
1168 (elmo-folder-local-p folder)
1169 (< number 0) ; in dop spool
1170 (elmo-message-cached-p folder number)))
1172 (luna-define-generic elmo-message-set-cached (folder number cached)
1173 "Set cache status of the message in the msgdb.
1174 FOLDER is the ELMO folder structure.
1175 NUMBER is a number of the message.
1176 If CACHED is t, message is set as cached.")
1178 (luna-define-method elmo-message-set-cached ((folder elmo-folder)
1181 (elmo-msgdb-set-flag (elmo-folder-msgdb folder) number 'cached)
1182 (elmo-msgdb-unset-flag (elmo-folder-msgdb folder) number 'cached))
1183 (elmo-emit-signal 'cache-changed folder number))
1185 (defun elmo-message-copy-entity (entity)
1186 (elmo-msgdb-copy-message-entity (elmo-message-entity-handler entity)
1189 (luna-define-generic elmo-message-number (folder message-id)
1190 "Get message number from MSGDB which corresponds to MESSAGE-ID.")
1192 (luna-define-method elmo-message-number ((folder elmo-folder) message-id)
1193 (elmo-msgdb-message-number (elmo-folder-msgdb folder) message-id))
1195 (luna-define-generic elmo-message-entity (folder key)
1196 "Return the message-entity structure which matches to the KEY.
1197 KEY is a number or a string.
1198 A number is for message number in the FOLDER.
1199 A string is for message-id of the message.")
1201 (luna-define-method elmo-message-entity ((folder elmo-folder) key)
1202 (elmo-msgdb-message-entity (elmo-folder-msgdb folder) key))
1204 (luna-define-generic elmo-message-entity-parent (folder entity)
1205 "Return the parent message-entity structure in the FOLDER.
1206 ENTITY is the message-entity to get the parent.")
1208 (luna-define-method elmo-message-entity-parent ((folder elmo-folder) entity)
1209 (elmo-msgdb-get-parent-entity entity (elmo-folder-msgdb folder)))
1211 (put 'elmo-folder-do-each-message-entity 'lisp-indent-function '1)
1212 (def-edebug-spec elmo-folder-do-each-message-entity
1213 ((symbolp form &rest form) &rest form))
1215 (defsubst elmo-folder-list-message-entities (folder)
1216 ;; List all message entities in the FOLDER.
1218 (lambda (number) (elmo-message-entity folder number))
1219 (elmo-folder-list-messages folder nil t))) ; XXX killed-list is not used.
1221 (defmacro elmo-folder-do-each-message-entity (spec &rest form)
1222 "Iterator for message entity in the folder.
1223 \(elmo-folder-do-each-message-entity \(entity folder\)
1224 ... do the process using entity...
1226 `(dolist (,(car spec) (elmo-folder-list-message-entities ,(car (cdr spec))))
1229 (luna-define-generic elmo-folder-count-flags (folder)
1230 "Count flagged message number in the msgdb of the FOLDER.
1231 Return alist of flag and numbers.
1235 \(answered . 3\)\)")
1237 (luna-define-method elmo-folder-count-flags ((folder elmo-folder))
1238 (elmo-msgdb-flag-count (elmo-folder-msgdb folder)))
1240 (defun elmo-message-set-flag (folder number flag &optional is-local)
1242 FOLDER is a ELMO folder structure.
1243 NUMBER is a message number to set flag.
1245 FLAG is a symbol which is one of the following:
1246 `unread' (set the message as unread)
1247 `answered' (set the message as answered)
1248 `important' (set the message as important)
1250 `read' (remove new and unread flags)
1251 If optional IS-LOCAL is non-nil, update only local (not server) status."
1252 ;; XXX Transitional implementation.
1253 (elmo-folder-set-flag folder (list number) flag is-local))
1255 (defun elmo-message-unset-flag (folder number flag &optional is-local)
1256 "Unset message flag.
1257 FOLDER is a ELMO folder structure.
1258 NUMBER is a message number to set flag.
1260 FLAG is a symbol which is one of the following:
1261 `unread' (remove unread and new flag)
1262 `answered' (remove answered flag)
1263 `important' (remove important flag)
1265 `read' (set unread flag)
1266 If optional IS-LOCAL is non-nil, update only local (not server) status."
1267 ;; XXX Transitional implementation.
1268 (elmo-folder-unset-flag folder (list number) flag is-local))
1270 (luna-define-generic elmo-message-field (folder number field)
1271 "Get message field value in the msgdb.
1272 FOLDER is the ELMO folder structure.
1273 NUMBER is a number of the message.
1274 FIELD is a symbol of the field.")
1276 (luna-define-method elmo-message-field ((folder elmo-folder) number field)
1277 (elmo-msgdb-message-field (elmo-folder-msgdb folder) number field))
1279 (luna-define-generic elmo-message-set-field (folder number field value)
1280 "Set message field value in the msgdb.
1281 FOLDER is the ELMO folder structure.
1282 NUMBER is a number of the message.
1283 FIELD is a symbol of the field.
1284 VALUE is a value to set.")
1286 (luna-define-method elmo-message-set-field ((folder elmo-folder) number
1288 (elmo-message-entity-set-field (elmo-message-entity folder number)
1291 (luna-define-method elmo-message-use-cache-p ((folder elmo-folder) number)
1292 nil) ; default is not use cache.
1294 (luna-define-method elmo-message-folder ((folder elmo-folder) number)
1295 folder) ; default is folder
1297 (luna-define-method elmo-folder-set-flag ((folder elmo-folder)
1301 (when (elmo-folder-msgdb-internal folder)
1302 (dolist (number numbers)
1303 (let ((old-flags (elmo-message-flags folder number)))
1304 (when (elmo-global-flag-p flag)
1305 (let ((message-id (elmo-message-field folder number 'message-id)))
1306 (elmo-global-flag-set flag folder number message-id)))
1307 (elmo-msgdb-set-flag (elmo-folder-msgdb folder) number flag)
1308 (elmo-emit-signal 'flag-changing
1312 (elmo-message-flags folder number))))
1313 (elmo-emit-signal 'flag-changed folder numbers)))
1315 (defun elmo-message-has-global-flag-p (folder number)
1316 "Return non-nil when the message in the FOLDER with NUMBER has global flag."
1317 (let ((flags (elmo-message-flags folder number))
1320 (when (and (elmo-global-flag-p (car flags))
1321 (not (memq (car flags) '(answered unread cached))))
1324 (setq flags (cdr flags)))
1327 (defun elmo-message-set-global-flags (folder number flags &optional local)
1328 "Set global flags of the message in the FOLDER with NUMBER as FLAGS.
1329 If Optional LOCAL is non-nil, don't update server flag."
1330 (dolist (flag flags)
1331 (unless (elmo-global-flag-p flag)
1332 (error "Not a global flag")))
1333 (let ((old-flags (elmo-get-global-flags (elmo-message-flags folder number))))
1334 (dolist (flag flags)
1335 (unless (memq flag old-flags)
1336 (elmo-message-set-flag folder number flag local)))
1337 (dolist (flag old-flags)
1338 (unless (memq flag flags)
1339 (elmo-message-unset-flag folder number flag local)))))
1341 (luna-define-method elmo-folder-unset-flag ((folder elmo-folder)
1345 (when (elmo-folder-msgdb-internal folder)
1346 (dolist (number numbers)
1347 (let ((old-flags (elmo-message-flags folder number)))
1348 (when (elmo-global-flag-p flag)
1349 (elmo-global-flag-detach flag folder number 'always))
1350 (elmo-msgdb-unset-flag (elmo-folder-msgdb folder) number flag)
1351 (elmo-emit-signal 'flag-changing
1355 (elmo-message-flags folder number))))
1356 (elmo-emit-signal 'flag-changed folder numbers)))
1358 (luna-define-method elmo-folder-process-crosspost ((folder elmo-folder))
1362 ;;(luna-define-generic elmo-folder-append-message-entity (folder entity
1365 ;; "Append ENTITY to the folder.")
1367 (defun elmo-msgdb-merge (folder msgdb-merge)
1368 "Return a list of messages which have duplicated message-id."
1369 (let (msgdb duplicates)
1370 (setq msgdb (or (elmo-folder-msgdb-internal folder)
1371 (elmo-make-msgdb (elmo-folder-msgdb-path folder))))
1372 (setq duplicates (elmo-msgdb-append msgdb msgdb-merge))
1373 (elmo-folder-set-msgdb-internal folder msgdb)
1376 (defsubst elmo-folder-append-msgdb (folder append-msgdb)
1378 (let ((duplicates (elmo-msgdb-merge folder append-msgdb)))
1379 (cond ((eq (elmo-folder-process-duplicates-internal folder)
1381 ;; Let duplicates be a temporary killed message.
1382 (elmo-folder-kill-messages folder duplicates)
1383 ;; Should be flag as read.
1384 (elmo-folder-unset-flag folder duplicates 'unread))
1385 ((eq (elmo-folder-process-duplicates-internal folder)
1387 ;; Flag as read duplicates.
1388 (elmo-folder-unset-flag folder duplicates 'unread))
1391 (setq duplicates nil)))
1392 (length duplicates))
1395 (defun elmo-folder-confirm-appends (appends)
1396 (let ((len (length appends))
1398 (if (and elmo-folder-update-threshold
1399 (> len elmo-folder-update-threshold)
1400 elmo-folder-update-confirm)
1401 (if (y-or-n-p (format "Too many messages(%d). Update all? " len))
1403 (setq in elmo-folder-update-threshold)
1406 (setq in (read-from-minibuffer "Update number: "
1408 in (string-to-int in))
1411 (if (y-or-n-p (format
1412 "%d messages are killed (not appeared). OK? "
1413 (max (- len in) 0)))
1415 (nthcdr (max (- len in) 0) appends))
1416 (if (and elmo-folder-update-threshold
1417 (> len elmo-folder-update-threshold)
1418 (not elmo-folder-update-confirm))
1419 (nthcdr (max (- len elmo-folder-update-threshold) 0) appends)
1422 (luna-define-method elmo-message-fetch-bodystructure ((folder elmo-folder)
1426 (defun elmo-message-fetch-string (folder number strategy
1431 (set-buffer-multibyte nil)
1432 (when (elmo-message-fetch folder number strategy unread section)
1435 (luna-define-method elmo-message-fetch ((folder elmo-folder)
1441 (let ((cache-path (elmo-fetch-strategy-cache-path strategy))
1443 (cond ((eq (elmo-fetch-strategy-use-cache strategy) 'maybe)
1445 ((elmo-fetch-strategy-use-cache strategy)
1449 result err updated-server-flag)
1450 (while (and method-priorities
1453 (case (car method-priorities)
1455 (elmo-file-cache-load cache-path section))
1457 (when (condition-case error
1458 (elmo-message-fetch-internal folder number
1462 (error (setq err error) nil))
1463 (setq updated-server-flag t)
1464 (when (and (elmo-fetch-strategy-save-cache strategy)
1466 (elmo-file-cache-save cache-path section))
1468 method-priorities (cdr method-priorities)))
1470 (when (and (not unread)
1471 (elmo-message-flagged-p folder number 'unread))
1472 (elmo-message-unset-flag folder number 'unread updated-server-flag))
1474 (signal (car err) (cdr err))))
1477 (defun elmo-folder-kill-messages-range (folder beg end)
1478 (elmo-folder-set-killed-list-internal
1481 (elmo-folder-killed-list-internal folder)
1482 (list (cons beg end)))))
1484 (defun elmo-folder-kill-messages (folder numbers)
1485 "Kill(hide) messages in the FOLDER with NUMBERS."
1486 (elmo-folder-set-killed-list-internal
1488 (elmo-number-set-append-list
1489 (elmo-folder-killed-list-internal folder)
1491 (elmo-folder-unset-flag folder numbers 'all 'local-only))
1493 (luna-define-method elmo-folder-clear ((folder elmo-folder)
1494 &optional keep-killed)
1496 (elmo-folder-set-killed-list-internal folder nil))
1497 (if (eq elmo-msgdb-convert-type 'sync)
1498 (elmo-folder-set-msgdb-internal
1500 (elmo-make-msgdb (elmo-folder-msgdb-path folder)))
1501 (elmo-msgdb-clear (elmo-folder-msgdb folder))))
1503 (luna-define-generic elmo-folder-synchronize (folder
1509 "Synchronize the folder data to the newest status.
1510 FOLDER is the ELMO folder structure.
1512 If optional DISABLE-KILLED is non-nil, killed messages are also synchronized.
1513 If optional IGNORE-MSGDB is non-nil, current msgdb is thrown away except
1515 If NO-CHECK is non-nil, rechecking folder is skipped.
1516 If optional argument MASK is specified and is a list of message numbers,
1517 synchronize messages only which are contained the list.
1518 Return amount of cross-posted messages.
1519 If update process is interrupted, return nil.")
1521 (luna-define-method elmo-folder-synchronize ((folder elmo-folder)
1527 (let ((old-msgdb (elmo-folder-msgdb folder))
1528 (killed-list (elmo-folder-killed-list-internal folder))
1529 (flag-table (elmo-flag-table-load (elmo-folder-msgdb-path folder)))
1532 (elmo-msgdb-flag-table (elmo-folder-msgdb folder) flag-table)
1533 (elmo-folder-clear folder (not disable-killed)))
1534 (unless no-check (elmo-folder-check folder))
1536 (let ((killed-list (elmo-folder-killed-list-internal folder))
1538 delete-list new-list new-msgdb crossed)
1539 (message "Checking folder diff...")
1541 '(diff-new diff-del)
1542 (elmo-list-diff (elmo-folder-list-messages folder)
1543 (elmo-folder-list-messages folder nil 'in-msgdb)))
1545 (setq diff-new (sort diff-new #'<))
1546 (unless disable-killed
1547 (setq diff-new (elmo-living-messages diff-new killed-list)))
1549 (setq diff-new (elmo-list-filter mask diff-new))))
1550 (message "Checking folder diff...done")
1551 (setq new-list (elmo-folder-confirm-appends diff-new))
1552 ;; Append to killed list as (MIN-OF-DISAPPEARED . MAX-OF-DISAPPEARED)
1553 (when (not (eq (length diff-new)
1555 (let* ((diff (elmo-list-diff diff-new new-list))
1556 (disappeared (sort (car diff) #'<)))
1558 (elmo-folder-kill-messages-range folder
1560 (elmo-last disappeared)))))
1561 (setq delete-list diff-del)
1562 (if (and (null diff-new) (null diff-del))
1564 (elmo-folder-update-number folder)
1565 (elmo-folder-process-crosspost folder)
1566 0) ; `0' means no updates.
1568 (elmo-folder-detach-messages folder delete-list))
1570 (elmo-msgdb-out-of-date-messages (elmo-folder-msgdb folder))
1571 (setq new-msgdb (elmo-folder-msgdb-create
1572 folder new-list flag-table))
1574 (if (elmo-folder-persistent-p folder)
1575 (elmo-flag-table-save (elmo-folder-msgdb-path folder)
1577 (setq before-append nil)
1578 (setq crossed (elmo-folder-append-msgdb folder new-msgdb))
1579 ;; process crosspost.
1580 ;; Return a cons cell of (NUMBER-CROSSPOSTS . NEW-FLAG-ALIST).
1581 (elmo-folder-process-crosspost folder))
1585 ;; Resume to the original status.
1586 (if before-append (elmo-folder-set-msgdb-internal folder old-msgdb))
1587 (elmo-folder-set-killed-list-internal folder killed-list)
1590 (luna-define-generic elmo-folder-detach-messages (folder numbers)
1591 "Remove messages with NUMBERS from MSGDB.")
1593 (luna-define-method elmo-folder-detach-messages ((folder elmo-folder)
1595 (when (elmo-msgdb-delete-messages (elmo-folder-msgdb folder) numbers)
1596 ;; Remove NUMBERS from killed message list.
1597 (elmo-folder-set-killed-list-internal
1599 (elmo-number-set-delete-list
1600 (elmo-folder-killed-list-internal folder)
1604 (luna-define-generic elmo-folder-length (folder)
1605 "Return number of messages in the FOLDER.")
1607 (luna-define-method elmo-folder-length ((folder elmo-folder))
1608 (if (elmo-folder-msgdb-internal folder)
1609 (elmo-msgdb-length (elmo-folder-msgdb folder))
1612 (defun elmo-folder-msgdb-load (folder &optional silent)
1614 (message "Loading msgdb for %s..." (elmo-folder-name-internal folder)))
1615 (let ((msgdb (elmo-load-msgdb (elmo-folder-msgdb-path folder))))
1616 (elmo-folder-set-info-max-by-numdb
1618 (elmo-msgdb-list-messages msgdb))
1620 (message "Loading msgdb for %s...done"
1621 (elmo-folder-name-internal folder)))
1624 (defun elmo-msgdb-delete-path (folder)
1625 (let ((path (elmo-folder-msgdb-path folder)))
1626 (if (file-directory-p path)
1627 (elmo-delete-directory path t))))
1629 (defun elmo-msgdb-rename-path (old-folder new-folder)
1630 (let* ((old (directory-file-name (elmo-folder-msgdb-path old-folder)))
1631 (new (directory-file-name (elmo-folder-msgdb-path new-folder)))
1632 (new-dir (directory-file-name (file-name-directory new))))
1633 (if (not (file-directory-p old))
1635 (if (file-exists-p new)
1636 (error "Already exists directory: %s" new)
1637 (if (not (file-exists-p new-dir))
1638 (elmo-make-directory new-dir))
1639 (rename-file old new)))))
1641 (defun elmo-setup-subscribed-newsgroups (groups)
1642 "Setup subscribed newsgroups.
1643 GROUPS is a list of newsgroup name string.
1644 Return a hashtable for newsgroups."
1645 (let ((hashtb (or elmo-newsgroups-hashtb
1646 (setq elmo-newsgroups-hashtb
1647 (elmo-make-hash (length groups))))))
1648 (dolist (group groups)
1649 (or (elmo-get-hash-val group hashtb)
1650 (elmo-set-hash-val group nil hashtb)))
1651 (setq elmo-newsgroups-hashtb hashtb)))
1653 (defvar elmo-crosspost-message-alist-modified nil)
1654 (defun elmo-crosspost-message-alist-load ()
1655 "Load crosspost message alist."
1656 (setq elmo-crosspost-message-alist (elmo-crosspost-alist-load))
1657 (setq elmo-crosspost-message-alist-modified nil))
1659 (defun elmo-crosspost-message-alist-save ()
1660 "Save crosspost message alist."
1661 (when elmo-crosspost-message-alist-modified
1662 (let ((alist elmo-crosspost-message-alist)
1668 (not (intern-soft x elmo-newsgroups-hashtb)))
1669 (nth 1 (car alist))))
1671 (setcar (cdar alist) newsgroups)
1672 (setq elmo-crosspost-message-alist
1673 (delete (car alist) elmo-crosspost-message-alist)))
1674 (setq alist (cdr alist)))
1675 (elmo-crosspost-alist-save elmo-crosspost-message-alist)
1676 (setq elmo-crosspost-message-alist-modified nil))))
1678 (defun elmo-folder-make-temporary-directory (folder)
1679 ;; Make a temporary directory for FOLDER.
1680 (let ((temp-dir (make-temp-name
1682 (file-name-as-directory (elmo-folder-msgdb-path folder))
1684 (elmo-make-directory temp-dir)
1689 "Initialize ELMO module."
1690 (elmo-crosspost-message-alist-load)
1691 (elmo-resque-obsolete-variables)
1692 (elmo-dop-queue-load)
1693 (run-hooks 'elmo-init-hook))
1696 "Quit and cleanup ELMO."
1697 (elmo-crosspost-message-alist-save)
1698 (elmo-dop-queue-save)
1699 ;; Not implemented yet.
1700 (let ((types elmo-folder-type-alist)
1705 (intern (format "elmo-%s-folder"
1706 (symbol-name (cdr (car types)))))))
1707 ;; Call all folder's `elmo-quit' method.
1709 (dolist (func (luna-class-find-functions class 'elmo-quit))
1710 (funcall func nil)))
1711 (setq types (cdr types)))))
1713 (luna-define-method elmo-folder-rename-internal ((folder elmo-folder)
1715 (error "Cannot rename %s folder"
1716 (symbol-name (elmo-folder-type-internal folder))))
1719 (elmo-define-folder ?% 'imap4)
1720 (elmo-define-folder ?- 'nntp)
1721 (elmo-define-folder ?\+ 'localdir)
1722 (elmo-define-folder ?\* 'multi)
1723 (elmo-define-folder ?\/ 'filter)
1724 (elmo-define-folder ?\$ 'archive)
1725 (elmo-define-folder ?& 'pop3)
1726 (elmo-define-folder ?= 'localnews)
1727 (elmo-define-folder ?| 'pipe)
1728 (elmo-define-folder ?. 'maildir)
1729 (elmo-define-folder ?' 'internal)
1730 (elmo-define-folder ?\[ 'nmz)
1731 (elmo-define-folder ?@ 'shimbun)
1733 ;;; Obsolete variables.
1734 (elmo-define-obsolete-variable 'elmo-default-imap4-mailbox
1735 'elmo-imap4-default-mailbox)
1736 (elmo-define-obsolete-variable 'elmo-default-imap4-server
1737 'elmo-imap4-default-server)
1738 (elmo-define-obsolete-variable 'elmo-default-imap4-authenticate-type
1739 'elmo-imap4-default-authenticate-type)
1740 (elmo-define-obsolete-variable 'elmo-default-imap4-user
1741 'elmo-imap4-default-user)
1742 (elmo-define-obsolete-variable 'elmo-default-imap4-port
1743 'elmo-imap4-default-port)
1744 (elmo-define-obsolete-variable 'elmo-default-imap4-stream-type
1745 'elmo-imap4-default-stream-type)
1746 (elmo-define-obsolete-variable 'elmo-default-nntp-server
1747 'elmo-nntp-default-server)
1748 (elmo-define-obsolete-variable 'elmo-default-nntp-user
1749 'elmo-nntp-default-user)
1750 (elmo-define-obsolete-variable 'elmo-default-nntp-port
1751 'elmo-nntp-default-port)
1752 (elmo-define-obsolete-variable 'elmo-default-nntp-stream-type
1753 'elmo-nntp-default-stream-type)
1754 (elmo-define-obsolete-variable 'elmo-default-pop3-server
1755 'elmo-pop3-default-server)
1756 (elmo-define-obsolete-variable 'elmo-default-pop3-user
1757 'elmo-pop3-default-user)
1758 (elmo-define-obsolete-variable 'elmo-default-pop3-authenticate-type
1759 'elmo-pop3-default-authenticate-type)
1760 (elmo-define-obsolete-variable 'elmo-default-pop3-port
1761 'elmo-pop3-default-port)
1762 (elmo-define-obsolete-variable 'elmo-default-pop3-stream-type
1763 'elmo-pop3-default-stream-type)
1764 (elmo-define-obsolete-variable 'elmo-cache-dirname
1765 'elmo-cache-directory)
1766 (elmo-define-obsolete-variable 'elmo-msgdb-dir
1767 'elmo-msgdb-directory)
1768 (elmo-define-obsolete-variable 'elmo-global-flag-list
1771 ;; Obsolete functions.
1772 ;; 2001-12-11: *-dir -> *-directory
1773 (defalias 'elmo-folder-make-temp-dir 'elmo-folder-make-temporary-directory)
1774 (make-obsolete 'elmo-folder-make-temp-dir
1775 'elmo-folder-make-temporary-directory)
1778 (product-provide (provide 'elmo) (require 'elmo-version))
1780 ;;; elmo.el ends here