1 ;;; nnimap.el --- imap backend for Gnus
2 ;; Copyright (C) 1998, 1999, 2000 Free Software Foundation, Inc.
4 ;; Author: Simon Josefsson <jas@pdc.kth.se>
5 ;; Jim Radford <radford@robby.caltech.edu>
8 ;; This file is part of GNU Emacs.
10 ;; GNU Emacs is free software; you can redistribute it and/or modify
11 ;; it under the terms of the GNU General Public License as published by
12 ;; the Free Software Foundation; either version 2, or (at your option)
15 ;; GNU Emacs is distributed in the hope that it will be useful,
16 ;; but WITHOUT ANY WARRANTY; without even the implied warranty of
17 ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18 ;; GNU General Public License for more details.
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.
27 ;; Todo, major things:
29 ;; o Fix Gnus to view correct number of unread/total articles in group buffer
30 ;; o Fix Gnus to handle leading '.' in group names (fixed?)
31 ;; o Finish disconnected mode (moving articles between mailboxes unplugged)
33 ;; o MIME (partial article fetches)
34 ;; o Split to other backends, different split rules for different
37 ;; Todo, minor things:
39 ;; o Don't require half of Gnus -- backends should be standalone
40 ;; o Verify that we don't use IMAP4rev1 specific things (RFC2060 App B)
41 ;; o Dont uid fetch 1,* in nnimap-retrive-groups (slow)
42 ;; o Split up big fetches (1,* header especially) in smaller chunks
43 ;; o What do I do with gnus-newsgroup-*?
44 ;; o Tell Gnus about new groups (how can we tell?)
45 ;; o Respooling (fix Gnus?) (unnecessery?)
46 ;; o Add support for the following: (if applicable)
47 ;; request-list-newsgroups, request-regenerate
49 ;; request-associate-buffer, request-restore-buffer,
50 ;; o Do The Right Thing when UIDVALIDITY changes (what's the right thing?)
51 ;; o Support RFC2221 (Login referrals)
52 ;; o IMAP2BIS compatibility? (RFC2061)
53 ;; o ACAP stuff (perhaps a different project, would be nice to ACAPify
55 ;; o What about Gnus's article editing, can we support it? NO!
56 ;; o Use \Draft to support the draft group??
57 ;; o Duplicate suppression
73 (defconst nnimap-version "nnimap 1.0")
76 "Reading IMAP mail with Gnus."
79 (defvoo nnimap-address nil
80 "Address of physical IMAP server. If nil, use the virtual server's name.")
82 (defvoo nnimap-server-port nil
83 "Port number on physical IMAP server.
84 If nil, defaults to 993 for SSL connections and 143 otherwise.")
86 ;; Splitting variables
88 (defcustom nnimap-split-crosspost t
89 "If non-nil, do crossposting if several split methods match the mail.
90 If nil, the first match found will be used."
94 (defcustom nnimap-split-inbox nil
95 "Name of mailbox to split mail from.
97 Mail is read from this mailbox and split according to rules in
100 This can be a string or a list of strings."
102 :type '(choice (string)
105 (define-widget 'nnimap-strict-function 'function
106 "This widget only matches values that are functionp.
108 Warning: This means that a value that is the symbol of a not yet
109 loaded function will not match. Use with care."
110 :match 'nnimap-strict-function-match)
112 (defun nnimap-strict-function-match (widget value)
113 "Ignoring WIDGET, match if VALUE is a function."
116 (defcustom nnimap-split-rule nil
117 "Mail will be split according to theese rules.
119 Mail is read from mailbox(es) specified in `nnimap-split-inbox'.
121 If you'd like, for instance, one mail group for mail from the
122 \"gnus-imap\" mailing list, one group for junk mail and leave
123 everything else in the incoming mailbox, you could do something like
126 \(setq nnimap-split-rule '((\"INBOX.gnus-imap\" \"From:.*gnus-imap\")
127 (\"INBOX.junk\" \"Subject:.*buy\")))
129 As you can see, `nnimap-split-rule' is a list of lists, where the first
130 element in each \"rule\" is the name of the IMAP mailbox, and the
131 second is a regexp that nnimap will try to match on the header to find
134 The second element can also be a function. In that case, it will be
135 called narrowed to the headers with the first element of the rule as
136 the argument. It should return a non-nil value if it thinks that the
137 mail belongs in that group.
139 This variable can also have a function as its value, the function will
140 be called with the headers narrowed and should return a group where it
141 thinks the article should be splitted to. See `nnimap-split-fancy'.
143 To allow for different split rules on different virtual servers, and
144 even different split rules in different inboxes on the same server,
145 the syntax of this variable have been extended along the lines of:
147 \(setq nnimap-split-rule
148 '((\"my1server\" (\".*\" ((\"ding\" \"ding@gnus.org\")
149 (\"junk\" \"From:.*Simon\")))
150 (\"my2server\" (\"INBOX\" nnimap-split-fancy))
151 (\"my[34]server\" (\".*\" ((\"private\" \"To:.*Simon\")
152 (\"junk\" my-junk-func)))))
154 The virtual server name is in fact a regexp, so that the same rules
155 may apply to several servers. In the example, the servers
156 \"my3server\" and \"my4server\" both use the same rules. Similarly,
157 the inbox string is also a regexp. The actual splitting rules are as
158 before, either a function, or a list with group/regexp or
159 group/function elements."
161 :type '(choice :tag "Rule type"
162 (repeat :menu-tag "Single-server"
163 :tag "Single-server list"
164 (list (string :tag "Mailbox")
165 (choice :tag "Predicate"
166 (regexp :tag "A regexp")
167 (nnimap-strict-function :tag "A function"))))
168 (choice :menu-tag "A function"
170 (function-item nnimap-split-fancy)
171 (function-item nnmail-split-fancy)
172 (nnimap-strict-function :tag "User-defined function"))
173 (repeat :menu-tag "Multi-server (extended)"
174 :tag "Multi-server list"
175 (list (regexp :tag "Server regexp")
176 (list (regexp :tag "Incoming Mailbox regexp")
177 (repeat :tag "Rules for matching server(s) and mailbox(es)"
178 (list (string :tag "Destination mailbox")
179 (choice :tag "Predicate"
180 (regexp :tag "A Regexp")
181 (nnimap-strict-function :tag "A Function")))))))))
183 (defcustom nnimap-split-predicate "UNSEEN UNDELETED"
184 "The predicate used to find articles to split.
185 If you use another IMAP client to peek on articles but always would
186 like nnimap to split them once it's started, you could change this to
187 \"UNDELETED\". Other available predicates are available in
188 RFC2060 section 6.4.4."
192 (defcustom nnimap-split-fancy nil
193 "Like `nnmail-split-fancy', which see."
197 ;; Performance / bug workaround variables
199 (defcustom nnimap-close-asynchronous t
200 "Close mailboxes asynchronously in `nnimap-close-group'.
201 This means that errors cought by nnimap when closing the mailbox will
202 not prevent Gnus from updating the group status, which may be harmful.
203 However, it increases speed."
207 (defcustom nnimap-dont-close t
208 "Never close mailboxes.
209 This increases the speed of closing mailboxes (quiting group) but may
210 decrease the speed of selecting another mailbox later. Re-selecting
211 the same mailbox will be faster though."
215 (defvoo nnimap-need-unselect-to-notice-new-mail nil
216 "Unselect mailboxes before looking for new mail in them.
217 Some servers seem to need this under some circumstances.")
219 ;; Authorization / Privacy variables
221 (defvoo nnimap-auth-method nil
224 (defvoo nnimap-stream nil
225 "How nnimap will connect to the server.
227 The default, nil, will try to use the \"best\" method the server can
232 1) you want to connect with SSL. The SSL integration with IMAP is
233 brain-dead so you'll have to tell it specifically.
235 2) your server is more capable than your environment -- i.e. your
236 server accept Kerberos login's but you haven't installed the
237 `imtest' program or your machine isn't configured for Kerberos.
239 Possible choices: kerberos4, ssl, network")
241 (defvoo nnimap-authenticator nil
242 "How nnimap authenticate itself to the server.
244 The default, nil, will try to use the \"best\" method the server can
247 There is only one reason for fiddling with this variable, and that is
248 if your server is more capable than your environment -- i.e. you
249 connect to a server that accept Kerberos login's but you haven't
250 installed the `imtest' program or your machine isn't configured for
253 Possible choices: kerberos4, cram-md5, login, anonymous.")
255 (defvoo nnimap-directory (nnheader-concat gnus-directory "overview/")
256 "Directory to keep NOV cache files for nnimap groups.
257 See also `nnimap-nov-file-name'.")
259 (defvoo nnimap-nov-file-name "nnimap."
260 "NOV cache base filename.
261 The group name and `nnimap-nov-file-name-suffix' will be appended. A
262 typical complete file name would be
263 ~/News/overview/nnimap.pdc.INBOX.ding.nov, or
264 ~/News/overview/nnimap/pdc/INBOX/ding/nov if
265 `nnmail-use-long-file-names' is nil")
267 (defvoo nnimap-nov-file-name-suffix ".novcache"
268 "Suffix for NOV cache base filename.")
270 (defvoo nnimap-nov-is-evil nil
271 "If non-nil, nnimap will never generate or use a local nov database for this backend.
272 Using nov databases will speed up header fetching considerably.
273 Unlike other backends, you do not need to take special care if you
274 flip this variable.")
276 (defvoo nnimap-expunge-on-close 'always ; 'ask, 'never
277 "Whether to expunge a group when it is closed.
278 When a IMAP group with articles marked for deletion is closed, this
279 variable determine if nnimap should actually remove the articles or
282 If always, nnimap always perform a expunge when closing the group.
283 If never, nnimap never expunges articles marked for deletion.
284 If ask, nnimap will ask you if you wish to expunge marked articles.
286 When setting this variable to `never', you can only expunge articles
287 by using `G x' (gnus-group-nnimap-expunge) from the Group buffer.")
289 (defvoo nnimap-list-pattern "*"
290 "A string LIMIT or list of strings with mailbox wildcards used to limit available groups.
291 See below for available wildcards.
293 The LIMIT string can be a cons cell (REFERENCE . LIMIT), where
294 REFERENCE will be passed as the first parameter to LIST/LSUB. The
295 semantics of this are server specific, on the University of Washington
296 server you can specify a directory.
299 '(\"INBOX\" \"mail/*\" (\"~friend/mail/\" . \"list/*\"))
301 There are two wildcards * and %. * matches everything, % matches
302 everything in the current hierarchy.")
304 (defvoo nnimap-news-groups nil
305 "IMAP support a news-like mode, also known as bulletin board mode,
306 where replies is sent via IMAP instead of SMTP.
308 This variable should contain a regexp matching groups where you wish
309 replies to be stored to the mailbox directly.
312 '(\"^[^I][^N][^B][^O][^X].*$\")
314 This will match all groups not beginning with \"INBOX\".
316 Note that there is nothing technically different between mail-like and
317 news-like mailboxes. If you wish to have a group with todo items or
318 similar which you wouldn't want to set up a mailing list for, you can
319 use this to make replies go directly to the group.")
321 (defvoo nnimap-expunge-search-string "UID %s NOT SINCE %s"
322 "IMAP search command to use for articles that are to be expired.
323 The first %s is replaced by a UID set of articles to search on,
324 and the second %s is replaced by a date criterium.
326 One useful (and perhaps the only useful) value to change this to would
327 be `UID %s NOT SENTSINCE %s' to make nnimap use the Date: header
328 instead of the internal date of messages. See section 6.4.4 of RFC
329 2060 for more information on valid strings.")
331 (defvoo nnimap-importantize-dormant t
332 "If non-nil, mark \"dormant\" articles as \"ticked\" for other IMAP clients.
333 Note that within Gnus, dormant articles will still (only) be
334 marked as ticked. This is to make \"dormant\" articles stand out,
335 just like \"ticked\" articles, in other IMAP clients.")
337 (defvoo nnimap-server-address nil
338 "Obsolete. Use `nnimap-address'.")
340 (defcustom nnimap-authinfo-file "~/.authinfo"
341 "Authorization information for IMAP servers. In .netrc format."
344 (repeat :tag "Entries"
347 :value ("" ("login" . "") ("password" . ""))
351 (const :format "" "login")
352 (string :format "Login: %v"))
354 (const :format "" "password")
355 (string :format "Password: %v")))))))
357 (defcustom nnimap-prune-cache t
358 "If non-nil, nnimap check whether articles still exist on server before using data stored in NOV cache."
361 (defvar nnimap-request-list-method 'imap-mailbox-list
362 "Method to use to request a list of all folders from the server.
363 If this is 'imap-mailbox-lsub, then use a server-side subscription list to
364 restrict visible folders.")
366 ;; Internal variables:
368 (defvar nnimap-debug nil
369 "Name of buffer to record debugging info.
370 For example: (setq nnimap-debug \"*nnimap-debug*\")")
371 (defvar nnimap-current-move-server nil)
372 (defvar nnimap-current-move-group nil)
373 (defvar nnimap-current-move-article nil)
374 (defvar nnimap-length)
375 (defvar nnimap-progress-chars '(?| ?/ ?- ?\\))
376 (defvar nnimap-progress-how-often 20)
377 (defvar nnimap-counter)
378 (defvar nnimap-callback-callback-function nil
379 "Gnus callback the nnimap asynchronous callback should call.")
380 (defvar nnimap-callback-buffer nil
381 "Which buffer the asynchronous article prefetch callback should work in.")
382 (defvar nnimap-server-buffer-alist nil) ;; Map server name to buffers.
383 (defvar nnimap-current-server nil) ;; Current server
384 (defvar nnimap-server-buffer nil) ;; Current servers' buffer
388 (nnoo-define-basics nnimap)
390 ;; Utility functions:
392 (defsubst nnimap-get-server-buffer (server)
393 "Return buffer for SERVER, if nil use current server."
394 (cadr (assoc (or server nnimap-current-server) nnimap-server-buffer-alist)))
396 (defun nnimap-possibly-change-server (server)
397 "Return buffer for SERVER, changing the current server as a side-effect.
398 If SERVER is nil, uses the current server."
399 (setq nnimap-current-server (or server nnimap-current-server)
400 nnimap-server-buffer (nnimap-get-server-buffer nnimap-current-server)))
402 (defun nnimap-verify-uidvalidity (group server)
403 "Verify stored uidvalidity match current one in GROUP on SERVER."
404 (let* ((gnusgroup (gnus-group-prefixed-name
405 group (gnus-server-to-method
406 (format "nnimap:%s" server))))
407 (new-uidvalidity (imap-mailbox-get 'uidvalidity))
408 (old-uidvalidity (gnus-group-get-parameter gnusgroup 'uidvalidity))
409 (dir (file-name-as-directory (expand-file-name nnimap-directory)))
410 (nameuid (nnheader-translate-file-chars
411 (concat nnimap-nov-file-name
412 (if (equal server "")
414 server) "." group "." old-uidvalidity
415 nnimap-nov-file-name-suffix) t))
416 (file (if (or nnmail-use-long-file-names
417 (file-exists-p (expand-file-name nameuid dir)))
418 (expand-file-name nameuid dir)
420 (mm-encode-coding-string
421 (nnheader-replace-chars-in-string nameuid ?. ?/)
422 nnmail-pathname-coding-system)
425 (if (not (equal old-uidvalidity new-uidvalidity))
427 (gnus-delete-file file)
428 (gnus-group-set-parameter gnusgroup 'uidvalidity new-uidvalidity)
430 (gnus-group-add-parameter gnusgroup (cons 'uidvalidity new-uidvalidity))
433 (defun nnimap-before-find-minmax-bugworkaround ()
434 "Function called before iterating through mailboxes with
435 `nnimap-find-minmax-uid'."
436 (when nnimap-need-unselect-to-notice-new-mail
437 ;; XXX this is for UoW imapd problem, it doesn't notice new mail in
438 ;; currently selected mailbox without a re-select/examine.
439 (or (null (imap-current-mailbox nnimap-server-buffer))
440 (imap-mailbox-unselect nnimap-server-buffer))))
442 (defun nnimap-find-minmax-uid (group &optional examine)
443 "Find lowest and highest active article nummber in GROUP.
444 If EXAMINE is non-nil the group is selected read-only."
445 (with-current-buffer nnimap-server-buffer
446 (when (or (string= group (imap-current-mailbox))
447 (imap-mailbox-select group examine))
449 (when (> (imap-mailbox-get 'exists) 0)
450 (imap-fetch "1,*" "UID" nil 'nouidfetch)
451 (imap-message-map (lambda (uid Uid)
452 (setq minuid (if minuid (min minuid uid) uid)
453 maxuid (if maxuid (max maxuid uid) uid)))
455 (list (imap-mailbox-get 'exists) minuid maxuid)))))
457 (defun nnimap-possibly-change-group (group &optional server)
458 "Make GROUP the current group, and SERVER the current server."
459 (when (nnimap-possibly-change-server server)
460 (with-current-buffer nnimap-server-buffer
461 (if (or (null group) (imap-current-mailbox-p group))
463 (if (imap-mailbox-select group)
464 (if (or (nnimap-verify-uidvalidity
465 group (or server nnimap-current-server))
466 (zerop (imap-mailbox-get 'exists group))
467 t ;; for OGnus to see if ignoring uidvalidity
468 ;; changes has any bad effects.
471 "nnimap: Group %s is not uidvalid. Continue? " group)))
473 (imap-mailbox-unselect)
474 (error "nnimap: Group %s is not uid-valid" group))
475 (nnheader-report 'nnimap (imap-error-text)))))))
477 (defun nnimap-replace-whitespace (string)
478 "Return STRING with all whitespace replaced with space."
480 (while (string-match "[\r\n\t]+" string)
481 (setq string (replace-match " " t t string)))
484 ;; Required backend functions
486 (defun nnimap-retrieve-headers-progress ()
487 "Hook to insert NOV line for current article into `nntp-server-buffer'."
488 (and (numberp nnmail-large-newsgroup)
489 (zerop (% (incf nnimap-counter) nnimap-progress-how-often))
490 (> nnimap-length nnmail-large-newsgroup)
491 (nnheader-message 6 "nnimap: Retrieving headers... %c"
492 (nth (/ (% nnimap-counter
493 (* (length nnimap-progress-chars)
494 nnimap-progress-how-often))
495 nnimap-progress-how-often)
496 nnimap-progress-chars)))
497 (with-current-buffer nntp-server-buffer
498 (let (headers lines chars uid mbx)
499 (with-current-buffer nnimap-server-buffer
500 (setq uid imap-current-message
501 mbx imap-current-mailbox
502 headers (nnimap-demule
503 (if (imap-capability 'IMAP4rev1)
504 ;; xxx don't just use car? alist doesn't contain
505 ;; anything else now, but it might...
506 (nth 2 (car (imap-message-get uid 'BODYDETAIL)))
507 (imap-message-get uid 'RFC822.HEADER)))
508 lines (imap-body-lines (imap-message-body imap-current-message))
509 chars (imap-message-get imap-current-message 'RFC822.SIZE)))
512 (buffer-disable-undo)
514 (nnheader-ms-strip-cr)
515 (nnheader-fold-continuation-lines)
516 (subst-char-in-region (point-min) (point-max) ?\t ? )
517 (let ((head (nnheader-parse-head 'naked)))
518 (mail-header-set-number head uid)
519 (mail-header-set-chars head chars)
520 (mail-header-set-lines head lines)
521 (mail-header-set-xref
522 head (format "%s %s:%d" (system-name) mbx uid))
525 (defun nnimap-retrieve-which-headers (articles fetch-old)
526 "Get a range of articles to fetch based on ARTICLES and FETCH-OLD."
527 (with-current-buffer nnimap-server-buffer
528 (if (numberp (car-safe articles))
531 (imap-range-to-message-set
532 (gnus-compress-sequence
533 (append (gnus-uncompress-sequence
535 (cons (if (numberp fetch-old)
536 (max 1 (- (car articles) fetch-old))
538 (1- (car articles)))))
540 (mapcar (lambda (msgid)
542 (format "HEADER Message-Id \"%s\"" msgid)))
545 (defun nnimap-group-overview-filename (group server)
546 "Make pathname for GROUP on SERVER."
547 (let* ((dir (file-name-as-directory (expand-file-name nnimap-directory)))
548 (uidvalidity (gnus-group-get-parameter
549 (gnus-group-prefixed-name
550 group (gnus-server-to-method
551 (format "nnimap:%s" server)))
553 (name (nnheader-translate-file-chars
554 (concat nnimap-nov-file-name
555 (if (equal server "")
557 server) "." group nnimap-nov-file-name-suffix) t))
558 (nameuid (nnheader-translate-file-chars
559 (concat nnimap-nov-file-name
560 (if (equal server "")
562 server) "." group "." uidvalidity
563 nnimap-nov-file-name-suffix) t))
564 (oldfile (if (or nnmail-use-long-file-names
565 (file-exists-p (expand-file-name name dir)))
566 (expand-file-name name dir)
568 (mm-encode-coding-string
569 (nnheader-replace-chars-in-string name ?. ?/)
570 nnmail-pathname-coding-system)
572 (newfile (if (or nnmail-use-long-file-names
573 (file-exists-p (expand-file-name nameuid dir)))
574 (expand-file-name nameuid dir)
576 (mm-encode-coding-string
577 (nnheader-replace-chars-in-string nameuid ?. ?/)
578 nnmail-pathname-coding-system)
580 (when (and (file-exists-p oldfile) (not (file-exists-p newfile)))
581 (message "nnimap: Upgrading novcache filename...")
583 (gnus-make-directory (file-name-directory newfile))
584 (unless (ignore-errors (rename-file oldfile newfile) t)
585 (if (ignore-errors (copy-file oldfile newfile) t)
586 (delete-file oldfile)
587 (error "Can't rename `%s' to `%s'" oldfile newfile))))
590 (defun nnimap-retrieve-headers-from-file (group server)
591 (with-current-buffer nntp-server-buffer
592 (let ((nov (nnimap-group-overview-filename group server)))
593 (when (file-exists-p nov)
594 (mm-insert-file-contents nov)
595 (set-buffer-modified-p nil)
596 (let ((min (ignore-errors (goto-char (point-min))
597 (read (current-buffer))))
598 (max (ignore-errors (goto-char (point-max))
600 (read (current-buffer)))))
601 (if (and (numberp min) (numberp max))
603 ;; junk, remove it, it's saved later
607 (defun nnimap-retrieve-headers-from-server (articles group server)
608 (with-current-buffer nnimap-server-buffer
609 (let ((imap-fetch-data-hook '(nnimap-retrieve-headers-progress))
610 (nnimap-length (gnus-range-length articles))
612 (imap-fetch (imap-range-to-message-set articles)
613 (concat "(UID RFC822.SIZE BODY "
615 (append '(Subject From Date Message-Id
616 References In-Reply-To Xref)
618 nnmail-extra-headers))))
619 (if (imap-capability 'IMAP4rev1)
620 (format "BODY.PEEK[HEADER.FIELDS %s])" headers)
621 (format "RFC822.HEADER.LINES %s)" headers)))))
622 (and (numberp nnmail-large-newsgroup)
623 (> nnimap-length nnmail-large-newsgroup)
624 (nnheader-message 6 "nnimap: Retrieving headers...done")))))
626 (defun nnimap-dont-use-nov-p (group server)
627 (or gnus-nov-is-evil nnimap-nov-is-evil
628 (unless (and (gnus-make-directory
630 (nnimap-group-overview-filename group server)))
632 (nnimap-group-overview-filename group server)))
633 (message "nnimap: Nov cache not writable, %s"
634 (nnimap-group-overview-filename group server)))))
636 (deffoo nnimap-retrieve-headers (articles &optional group server fetch-old)
637 (when (nnimap-possibly-change-group group server)
638 (with-current-buffer nntp-server-buffer
640 (if (nnimap-dont-use-nov-p group server)
641 (nnimap-retrieve-headers-from-server
642 (gnus-compress-sequence articles) group server)
643 (let (uids cached low high)
644 (when (setq uids (nnimap-retrieve-which-headers articles fetch-old)
646 high (car (last uids)))
647 (if (setq cached (nnimap-retrieve-headers-from-file group server))
649 ;; fetch articles with uids before cache block
650 (when (< low (car cached))
651 (goto-char (point-min))
652 (nnimap-retrieve-headers-from-server
653 (cons low (1- (car cached))) group server))
654 ;; fetch articles with uids after cache block
655 (when (> high (cdr cached))
656 (goto-char (point-max))
657 (nnimap-retrieve-headers-from-server
658 (cons (1+ (cdr cached)) high) group server))
659 (when nnimap-prune-cache
660 ;; remove nov's for articles which has expired on server
661 (goto-char (point-min))
662 (dolist (uid (gnus-set-difference articles uids))
663 (when (re-search-forward (format "^%d\t" uid) nil t)
664 (gnus-delete-line)))))
665 ;; nothing cached, fetch whole range from server
666 (nnimap-retrieve-headers-from-server
667 (cons low high) group server))
668 (when (buffer-modified-p)
670 (point-min) (point-max)
671 (nnimap-group-overview-filename group server) nil 'nomesg))
672 (nnheader-nov-delete-outside-range low high))))
675 (defun nnimap-open-connection (server)
676 (if (not (imap-open nnimap-address nnimap-server-port nnimap-stream
677 nnimap-authenticator nnimap-server-buffer))
678 (nnheader-report 'nnimap "Can't open connection to server %s" server)
679 (unless (or (imap-capability 'IMAP4 nnimap-server-buffer)
680 (imap-capability 'IMAP4rev1 nnimap-server-buffer))
681 (imap-close nnimap-server-buffer)
682 (nnheader-report 'nnimap "Server %s is not IMAP4 compliant" server))
683 (let* ((list (gnus-parse-netrc nnimap-authinfo-file))
684 (port (if nnimap-server-port
685 (int-to-string nnimap-server-port)
687 (alist (gnus-netrc-machine list (or nnimap-server-address
688 nnimap-address server)
690 (user (gnus-netrc-get alist "login"))
691 (passwd (gnus-netrc-get alist "password")))
692 (if (imap-authenticate user passwd nnimap-server-buffer)
694 (push (list server nnimap-server-buffer)
695 nnimap-server-buffer-alist)
696 (nnimap-possibly-change-server server))
697 (imap-close nnimap-server-buffer)
698 (kill-buffer nnimap-server-buffer)
699 (nnheader-report 'nnimap "Could not authenticate to %s" server)))))
701 (deffoo nnimap-open-server (server &optional defs)
702 (nnheader-init-server-buffer)
703 (if (nnimap-server-opened server)
705 (unless (assq 'nnimap-server-buffer defs)
706 (push (list 'nnimap-server-buffer (concat " *nnimap* " server)) defs))
707 ;; translate `nnimap-server-address' to `nnimap-address' in defs
708 ;; for people that configured nnimap with a very old version
709 (unless (assq 'nnimap-address defs)
710 (if (assq 'nnimap-server-address defs)
711 (push (list 'nnimap-address
712 (cadr (assq 'nnimap-server-address defs))) defs)
713 (push (list 'nnimap-address server) defs)))
714 (nnoo-change-server 'nnimap server defs)
715 (or nnimap-server-buffer
716 (setq nnimap-server-buffer (cadr (assq 'nnimap-server-buffer defs))))
717 (with-current-buffer (get-buffer-create nnimap-server-buffer)
718 (nnoo-change-server 'nnimap server defs))
719 (or (and nnimap-server-buffer
720 (imap-opened nnimap-server-buffer))
721 (nnimap-open-connection server))))
723 (deffoo nnimap-server-opened (&optional server)
724 "Whether SERVER is opened.
725 If SERVER is the current virtual server, and the connection to the
726 physical server is alive, this function return a non-nil value. If
727 SERVER is nil, it is treated as the current server."
728 ;; clean up autologouts??
729 (and (or server nnimap-current-server)
730 (nnoo-server-opened 'nnimap (or server nnimap-current-server))
731 (imap-opened (nnimap-get-server-buffer server))))
733 (deffoo nnimap-close-server (&optional server)
734 "Close connection to server and free all resources connected to it.
735 Return nil if the server couldn't be closed for some reason."
736 (let ((server (or server nnimap-current-server)))
737 (when (or (nnimap-server-opened server)
738 (imap-opened (nnimap-get-server-buffer server)))
739 (imap-close (nnimap-get-server-buffer server))
740 (kill-buffer (nnimap-get-server-buffer server))
741 (setq nnimap-server-buffer nil
742 nnimap-current-server nil
743 nnimap-server-buffer-alist
744 (delq server nnimap-server-buffer-alist)))
745 (nnoo-close-server 'nnimap server)))
747 (deffoo nnimap-request-close ()
748 "Close connection to all servers and free all resources that the backend have reserved.
749 All buffers that have been created by that
750 backend should be killed. (Not the nntp-server-buffer, though.) This
751 function is generally only called when Gnus is shutting down."
752 (mapcar (lambda (server) (nnimap-close-server (car server)))
753 nnimap-server-buffer-alist)
754 (setq nnimap-server-buffer-alist nil))
756 (deffoo nnimap-status-message (&optional server)
757 "This function returns the last error message from server."
758 (when (nnimap-possibly-change-server server)
759 (nnoo-status-message 'nnimap server)))
761 (defun nnimap-demule (string)
762 (funcall (if (and (fboundp 'string-as-multibyte)
763 (subrp (symbol-function 'string-as-multibyte)))
768 (defun nnimap-callback ()
769 (remove-hook 'imap-fetch-data-hook 'nnimap-callback)
770 (with-current-buffer nnimap-callback-buffer
772 (with-current-buffer nnimap-server-buffer
774 (if (imap-capability 'IMAP4rev1)
775 ;; xxx don't just use car? alist doesn't contain
776 ;; anything else now, but it might...
777 (nth 2 (car (imap-message-get (imap-current-message) 'BODYDETAIL)))
778 (imap-message-get (imap-current-message) 'RFC822)))))
779 (nnheader-ms-strip-cr)
780 (funcall nnimap-callback-callback-function t)))
782 (defun nnimap-request-article-part (article part prop &optional
783 group server to-buffer detail)
784 (when (nnimap-possibly-change-group group server)
785 (let ((article (if (stringp article)
786 (car-safe (imap-search
787 (format "HEADER Message-Id \"%s\"" article)
788 nnimap-server-buffer))
791 (gnus-message 10 "nnimap: Fetching (part of) article %d..." article)
792 (if (not nnheader-callback-function)
793 (with-current-buffer (or to-buffer nntp-server-buffer)
795 (let ((data (imap-fetch article part prop nil
796 nnimap-server-buffer)))
797 (insert (nnimap-demule (if detail
800 (nnheader-ms-strip-cr)
801 (gnus-message 10 "nnimap: Fetching (part of) article %d...done"
804 (nnheader-report 'nnimap "No such article: %s"
805 (imap-error-text nnimap-server-buffer))
806 (cons group article)))
807 (add-hook 'imap-fetch-data-hook 'nnimap-callback)
808 (setq nnimap-callback-callback-function nnheader-callback-function
809 nnimap-callback-buffer nntp-server-buffer)
810 (imap-fetch-asynch article part nil nnimap-server-buffer)
811 (cons group article))))))
813 (deffoo nnimap-asynchronous-p ()
816 (deffoo nnimap-request-article (article &optional group server to-buffer)
817 (if (imap-capability 'IMAP4rev1 nnimap-server-buffer)
818 (nnimap-request-article-part
819 article "BODY.PEEK[]" 'BODYDETAIL group server to-buffer 'detail)
820 (nnimap-request-article-part
821 article "RFC822.PEEK" 'RFC822 group server to-buffer)))
823 (deffoo nnimap-request-head (article &optional group server to-buffer)
824 (if (imap-capability 'IMAP4rev1 nnimap-server-buffer)
825 (nnimap-request-article-part
826 article "BODY.PEEK[HEADER]" 'BODYDETAIL group server to-buffer 'detail)
827 (nnimap-request-article-part
828 article "RFC822.HEADER" 'RFC822.HEADER group server to-buffer)))
830 (deffoo nnimap-request-body (article &optional group server to-buffer)
831 (if (imap-capability 'IMAP4rev1 nnimap-server-buffer)
832 (nnimap-request-article-part
833 article "BODY.PEEK[TEXT]" 'BODYDETAIL group server to-buffer 'detail)
834 (nnimap-request-article-part
835 article "RFC822.TEXT.PEEK" 'RFC822.TEXT group server to-buffer)))
837 (deffoo nnimap-request-group (group &optional server fast)
838 (nnimap-request-update-info-internal
840 (gnus-get-info (gnus-group-prefixed-name
841 group (gnus-server-to-method (format "nnimap:%s" server))))
843 (when (nnimap-possibly-change-group group server)
844 (nnimap-before-find-minmax-bugworkaround)
847 ((null (setq info (nnimap-find-minmax-uid group t)))
848 (nnheader-report 'nnimap "Could not get active info for %s"
851 (nnheader-insert "211 %d %d %d %s\n" (or (nth 0 info) 0)
852 (max 1 (or (nth 1 info) 1))
853 (or (nth 2 info) 0) group)
854 (nnheader-report 'nnimap "Group %s selected" group)
857 (defun nnimap-close-group (group &optional server)
858 (with-current-buffer nnimap-server-buffer
859 (when (and (imap-opened)
860 (nnimap-possibly-change-group group server))
861 (case nnimap-expunge-on-close
863 (imap-mailbox-expunge nnimap-close-asynchronous)
864 (unless nnimap-dont-close
865 (imap-mailbox-close nnimap-close-asynchronous))))
866 (ask (if (and (imap-search "DELETED")
867 (gnus-y-or-n-p (format "Expunge articles in group `%s'? "
868 imap-current-mailbox)))
870 (imap-mailbox-expunge nnimap-close-asynchronous)
871 (unless nnimap-dont-close
872 (imap-mailbox-close nnimap-close-asynchronous)))
873 (imap-mailbox-unselect)))
874 (t (imap-mailbox-unselect)))
875 (not imap-current-mailbox))))
877 (defun nnimap-pattern-to-list-arguments (pattern)
879 (cons (car-safe p) (or (cdr-safe p) p)))
880 (if (and (listp pattern)
881 (listp (cdr pattern)))
885 (deffoo nnimap-request-list (&optional server)
886 (when (nnimap-possibly-change-server server)
887 (with-current-buffer nntp-server-buffer
889 (gnus-message 5 "nnimap: Generating active list%s..."
890 (if (> (length server) 0) (concat " for " server) ""))
891 (nnimap-before-find-minmax-bugworkaround)
892 (with-current-buffer nnimap-server-buffer
893 (dolist (pattern (nnimap-pattern-to-list-arguments nnimap-list-pattern))
894 (dolist (mbx (funcall nnimap-request-list-method
895 (cdr pattern) (car pattern)))
896 (or (member "\\NoSelect" (imap-mailbox-get 'list-flags mbx))
897 (let ((info (nnimap-find-minmax-uid mbx 'examine)))
899 (with-current-buffer nntp-server-buffer
900 (insert (format "\"%s\" %d %d y\n"
901 mbx (or (nth 2 info) 0)
902 (max 1 (or (nth 1 info) 1)))))))))))
903 (gnus-message 5 "nnimap: Generating active list%s...done"
904 (if (> (length server) 0) (concat " for " server) ""))
907 (deffoo nnimap-request-post (&optional server)
909 (dolist (mbx (message-unquote-tokens
910 (message-tokenize-header
911 (message-fetch-field "Newsgroups") ", ")) success)
912 (let ((to-newsgroup (gnus-group-prefixed-name mbx gnus-command-method)))
913 (or (gnus-active to-newsgroup)
914 (gnus-activate-group to-newsgroup)
915 (if (gnus-y-or-n-p (format "No such group: %s. Create it? "
917 (or (and (gnus-request-create-group
918 to-newsgroup gnus-command-method)
919 (gnus-activate-group to-newsgroup nil nil
920 gnus-command-method))
921 (error "Couldn't create group %s" to-newsgroup)))
922 (error "No such group: %s" to-newsgroup))
923 (unless (nnimap-request-accept-article mbx (nth 1 gnus-command-method))
924 (setq success nil))))))
926 ;; Optional backend functions
928 (deffoo nnimap-retrieve-groups (groups &optional server)
929 (when (nnimap-possibly-change-server server)
930 (gnus-message 5 "nnimap: Checking mailboxes...")
931 (with-current-buffer nntp-server-buffer
933 (nnimap-before-find-minmax-bugworkaround)
934 (dolist (group groups)
935 (gnus-message 7 "nnimap: Checking mailbox %s" group)
936 (or (member "\\NoSelect"
937 (imap-mailbox-get 'list-flags group nnimap-server-buffer))
938 (let ((info (nnimap-find-minmax-uid group 'examine)))
939 (when (> (or (imap-mailbox-get 'recent group
940 nnimap-server-buffer) 0)
942 (push (list (cons group 0)) nnmail-split-history))
943 (insert (format "\"%s\" %d %d y\n" group
945 (max 1 (or (nth 1 info) 1))))))))
946 (gnus-message 5 "nnimap: Checking mailboxes...done")
949 (deffoo nnimap-request-update-info-internal (group info &optional server)
950 (when (nnimap-possibly-change-group group server)
951 (when info ;; xxx what does this mean? should we create a info?
952 (with-current-buffer nnimap-server-buffer
953 (gnus-message 5 "nnimap: Updating info for %s..."
954 (gnus-info-group info))
956 (when (nnimap-mark-permanent-p 'read)
958 ;; read info could contain articles marked unread by other
959 ;; imap clients! we correct this
960 (setq seen (gnus-uncompress-range (gnus-info-read info))
961 unseen (imap-search "UNSEEN UNDELETED")
962 seen (gnus-set-difference seen unseen)
963 ;; seen might lack articles marked as read by other
964 ;; imap clients! we correct this
965 seen (append seen (imap-search "SEEN"))
968 seen (gnus-compress-sequence seen t)
969 ;; we can't return '(1) since this isn't a "list of ranges",
970 ;; and we can't return '((1)) since g-list-of-unread-articles
971 ;; is buggy so we return '((1 . 1)).
972 seen (if (and (integerp (car seen))
974 (list (cons (car seen) (car seen)))
976 (gnus-info-set-read info seen)))
978 (mapcar (lambda (pred)
979 (when (or (eq (cdr pred) 'recent)
980 (and (nnimap-mark-permanent-p (cdr pred))
981 (member (nnimap-mark-to-flag (cdr pred))
982 (imap-mailbox-get 'flags))))
985 (gnus-update-alist-soft
987 (gnus-compress-sequence
988 (imap-search (nnimap-mark-to-predicate (cdr pred))))
989 (gnus-info-marks info))
991 gnus-article-mark-lists)
993 (when nnimap-importantize-dormant
994 ;; nnimap mark dormant article as ticked too (for other clients)
995 ;; so we remove that mark for gnus since we support dormant
998 (gnus-update-alist-soft
1000 (gnus-remove-from-range
1001 (cdr-safe (assoc 'tick (gnus-info-marks info)))
1002 (cdr-safe (assoc 'dormant (gnus-info-marks info))))
1003 (gnus-info-marks info))
1006 (gnus-message 5 "nnimap: Updating info for %s...done"
1007 (gnus-info-group info))
1011 (deffoo nnimap-request-type (group &optional article)
1012 (if (and nnimap-news-groups (string-match nnimap-news-groups group))
1016 (deffoo nnimap-request-set-mark (group actions &optional server)
1017 (when (nnimap-possibly-change-group group server)
1018 (with-current-buffer nnimap-server-buffer
1020 (gnus-message 7 "nnimap: Setting marks in %s..." group)
1021 (while (setq action (pop actions))
1022 (let ((range (nth 0 action))
1023 (what (nth 1 action))
1024 (cmdmarks (nth 2 action))
1026 ;; bookmark can't be stored (not list/range
1027 (setq cmdmarks (delq 'bookmark cmdmarks))
1028 ;; killed can't be stored (not list/range
1029 (setq cmdmarks (delq 'killed cmdmarks))
1030 ;; unsent are for nndraft groups only
1031 (setq cmdmarks (delq 'unsent cmdmarks))
1032 ;; cache flags are pointless on the server
1033 (setq cmdmarks (delq 'cache cmdmarks))
1034 ;; seen flags are local to each gnus
1035 (setq cmdmarks (delq 'seen cmdmarks))
1036 ;; recent marks can't be set
1037 (setq cmdmarks (delq 'recent cmdmarks))
1038 (when nnimap-importantize-dormant
1039 ;; flag dormant articles as ticked
1040 (if (memq 'dormant cmdmarks)
1041 (setq cmdmarks (cons 'tick cmdmarks))))
1042 ;; remove stuff we are forbidden to store
1043 (mapcar (lambda (mark)
1044 (if (imap-message-flag-permanent-p
1045 (nnimap-mark-to-flag mark))
1046 (setq marks (cons mark marks))))
1048 (when (and range marks)
1049 (cond ((eq what 'del)
1050 (imap-message-flags-del
1051 (imap-range-to-message-set range)
1052 (nnimap-mark-to-flag marks nil t)))
1054 (imap-message-flags-add
1055 (imap-range-to-message-set range)
1056 (nnimap-mark-to-flag marks nil t)))
1058 (imap-message-flags-set
1059 (imap-range-to-message-set range)
1060 (nnimap-mark-to-flag marks nil t)))))))
1061 (gnus-message 7 "nnimap: Setting marks in %s...done" group))))
1064 (defun nnimap-split-fancy ()
1065 "Like nnmail-split-fancy, but uses nnimap-split-fancy."
1066 (let ((nnmail-split-fancy nnimap-split-fancy))
1067 (nnmail-split-fancy)))
1069 (defun nnimap-split-to-groups (rules)
1070 ;; tries to match all rules in nnimap-split-rule against content of
1071 ;; nntp-server-buffer, returns a list of groups that matched.
1072 (with-current-buffer nntp-server-buffer
1073 ;; Fold continuation lines.
1074 (goto-char (point-min))
1075 (while (re-search-forward "\\(\r?\n[ \t]+\\)+" nil t)
1076 (replace-match " " t t))
1077 (if (functionp rules)
1079 (let (to-groups regrepp)
1081 (dolist (rule rules to-groups)
1082 (let ((group (car rule))
1083 (regexp (cadr rule)))
1084 (goto-char (point-min))
1085 (when (and (if (stringp regexp)
1087 (setq regrepp (string-match "\\\\[0-9&]" group))
1088 (re-search-forward regexp nil t))
1089 (funcall regexp group))
1090 ;; Don't enter the article into the same group twice.
1091 (not (assoc group to-groups)))
1093 (nnmail-expand-newtext group)
1096 (or nnimap-split-crosspost
1097 (throw 'split-done to-groups))))))))))
1099 (defun nnimap-assoc-match (key alist)
1101 (while (and alist (not element))
1102 (if (string-match (car (car alist)) key)
1103 (setq element (car alist)))
1104 (setq alist (cdr alist)))
1107 (defun nnimap-split-find-rule (server inbox)
1108 (if (and (listp nnimap-split-rule) (listp (car nnimap-split-rule))
1109 (list (cdar nnimap-split-rule)) (listp (cadar nnimap-split-rule)))
1111 (cadr (nnimap-assoc-match inbox (cdr (nnimap-assoc-match
1112 server nnimap-split-rule))))
1115 (defun nnimap-split-find-inbox (server)
1116 (if (listp nnimap-split-inbox)
1118 (list nnimap-split-inbox)))
1120 (defun nnimap-split-articles (&optional group server)
1121 (when (nnimap-possibly-change-server server)
1122 (with-current-buffer nnimap-server-buffer
1123 (let (rule inbox removeorig (inboxes (nnimap-split-find-inbox server)))
1124 ;; iterate over inboxes
1125 (while (and (setq inbox (pop inboxes))
1126 (nnimap-possibly-change-group inbox)) ;; SELECT
1127 ;; find split rule for this server / inbox
1128 (when (setq rule (nnimap-split-find-rule server inbox))
1129 ;; iterate over articles
1130 (dolist (article (imap-search nnimap-split-predicate))
1131 (when (nnimap-request-head article)
1132 ;; copy article to right group(s)
1133 (setq removeorig nil)
1134 (dolist (to-group (nnimap-split-to-groups rule))
1135 (cond ((eq to-group 'junk)
1136 (message "IMAP split removed %s:%s:%d" server inbox
1138 (setq removeorig t))
1139 ((imap-message-copy (number-to-string article)
1140 to-group nil 'nocopyuid)
1141 (message "IMAP split moved %s:%s:%d to %s" server
1142 inbox article to-group)
1144 ;; Add the group-art list to the history list.
1145 (push (list (cons to-group 0)) nnmail-split-history))
1147 (message "IMAP split failed to move %s:%s:%d to %s"
1148 server inbox article to-group))))
1149 ;; remove article if it was successfully copied somewhere
1151 (imap-message-flags-add (format "%d" article)
1152 "\\Seen \\Deleted")))))
1153 (when (imap-mailbox-select inbox) ;; just in case
1154 ;; todo: UID EXPUNGE (if available) to remove splitted articles
1155 (imap-mailbox-expunge)
1156 (imap-mailbox-close)))
1159 (deffoo nnimap-request-scan (&optional group server)
1160 (nnimap-split-articles group server))
1162 (deffoo nnimap-request-newgroups (date &optional server)
1163 (when (nnimap-possibly-change-server server)
1164 (with-current-buffer nntp-server-buffer
1165 (gnus-message 5 "nnimap: Listing subscribed mailboxes%s%s..."
1166 (if (> (length server) 0) " on " "") server)
1168 (nnimap-before-find-minmax-bugworkaround)
1169 (dolist (pattern (nnimap-pattern-to-list-arguments
1170 nnimap-list-pattern))
1171 (dolist (mbx (imap-mailbox-lsub "*" (car pattern) nil
1172 nnimap-server-buffer))
1174 (dolist (mailbox (imap-mailbox-get 'list-flags mbx
1175 nnimap-server-buffer))
1176 (if (string= (downcase mailbox) "\\noselect")
1179 (let ((info (nnimap-find-minmax-uid mbx 'examine)))
1181 (insert (format "\"%s\" %d %d y\n"
1182 mbx (or (nth 2 info) 0)
1183 (max 1 (or (nth 1 info) 1)))))))))
1184 (gnus-message 5 "nnimap: Listing subscribed mailboxes%s%s...done"
1185 (if (> (length server) 0) " on " "") server))
1188 (deffoo nnimap-request-create-group (group &optional server args)
1189 (when (nnimap-possibly-change-server server)
1190 (or (imap-mailbox-status group 'uidvalidity nnimap-server-buffer)
1191 (imap-mailbox-create group nnimap-server-buffer))))
1193 (defun nnimap-time-substract (time1 time2)
1194 "Return TIME for TIME1 - TIME2."
1195 (let* ((ms (- (car time1) (car time2)))
1196 (ls (- (nth 1 time1) (nth 1 time2))))
1198 (list (- ms 1) (+ (expt 2 16) ls))
1201 (defun nnimap-date-days-ago (daysago)
1202 "Return date, in format \"3-Aug-1998\", for DAYSAGO days ago."
1203 (let* ((time (nnimap-time-substract (current-time) (days-to-time daysago)))
1204 (date (format-time-string
1205 (format "%%d-%s-%%Y"
1206 (capitalize (car (rassoc (nth 4 (decode-time time))
1207 parse-time-months))))
1209 (if (eq ?0 (string-to-char date))
1213 (defun nnimap-request-expire-articles-progress ()
1214 (gnus-message 5 "nnimap: Marking article %d for deletion..."
1215 imap-current-message))
1218 (defun nnimap-expiry-target (arts group server)
1219 (unless (eq nnmail-expiry-target 'delete)
1221 (dolist (art (gnus-uncompress-sequence arts))
1222 (nnimap-request-article art group server (current-buffer))
1223 ;; hints for optimization in `nnimap-request-accept-article'
1224 (let ((nnimap-current-move-article art)
1225 (nnimap-current-move-group group)
1226 (nnimap-current-move-server server))
1227 (nnmail-expiry-target-group nnmail-expiry-target group))))
1228 ;; It is not clear if `nnmail-expiry-target' somehow cause the
1229 ;; current group to be changed or not, so we make sure here.
1230 (nnimap-possibly-change-group group server)))
1232 ;; Notice that we don't actually delete anything, we just mark them deleted.
1233 (deffoo nnimap-request-expire-articles (articles group &optional server force)
1234 (let ((artseq (gnus-compress-sequence articles)))
1235 (when (and artseq (nnimap-possibly-change-group group server))
1236 (with-current-buffer nnimap-server-buffer
1239 (nnimap-expiry-target artseq group server)
1240 (when (imap-message-flags-add (imap-range-to-message-set artseq)
1242 (setq articles nil)))
1243 (let ((days (or (and nnmail-expiry-wait-function
1244 (funcall nnmail-expiry-wait-function group))
1245 nnmail-expiry-wait)))
1246 (cond ((eq days 'immediate)
1247 (nnimap-expiry-target artseq group server)
1248 (when (imap-message-flags-add
1249 (imap-range-to-message-set artseq) "\\Deleted")
1250 (setq articles nil)))
1252 (let ((oldarts (imap-search
1253 (format nnimap-expunge-search-string
1254 (imap-range-to-message-set artseq)
1255 (nnimap-date-days-ago days))))
1256 (imap-fetch-data-hook
1257 '(nnimap-request-expire-articles-progress)))
1258 (nnimap-expiry-target oldarts group server)
1260 (imap-message-flags-add
1261 (imap-range-to-message-set
1262 (gnus-compress-sequence oldarts))
1264 (setq articles (gnus-set-difference
1265 articles oldarts)))))))))))
1266 ;; return articles not deleted
1269 (deffoo nnimap-request-move-article (article group server
1270 accept-form &optional last)
1271 (when (nnimap-possibly-change-server server)
1273 (let ((buf (get-buffer-create " *nnimap move*"))
1274 (nnimap-current-move-article article)
1275 (nnimap-current-move-group group)
1276 (nnimap-current-move-server nnimap-current-server)
1278 (and (nnimap-request-article article group server)
1281 (buffer-disable-undo (current-buffer))
1282 (insert-buffer-substring nntp-server-buffer)
1283 (setq result (eval accept-form))
1286 (imap-message-flags-add
1287 (imap-range-to-message-set (list article))
1288 "\\Deleted" 'silent nnimap-server-buffer))
1291 (deffoo nnimap-request-accept-article (group &optional server last)
1292 (when (nnimap-possibly-change-server server)
1295 (if (string= nnimap-current-server nnimap-current-move-server)
1296 ;; moving article within same server, speed it up...
1297 (and (nnimap-possibly-change-group
1298 nnimap-current-move-group)
1299 (imap-message-copy (number-to-string
1300 nnimap-current-move-article)
1301 group 'dontcreate nil
1302 nnimap-server-buffer))
1303 (with-current-buffer (current-buffer)
1304 (goto-char (point-min))
1305 ;; remove any 'From blabla' lines, some IMAP servers
1306 ;; reject the entire message otherwise.
1307 (when (looking-at "^From[^:]")
1308 (kill-region (point) (progn (forward-line) (point))))
1309 ;; turn into rfc822 format (\r\n eol's)
1310 (while (search-forward "\n" nil t)
1311 (replace-match "\r\n")))
1312 ;; this 'or' is for Cyrus server bug
1313 (or (null (imap-current-mailbox nnimap-server-buffer))
1314 (imap-mailbox-unselect nnimap-server-buffer))
1315 (imap-message-append group (current-buffer) nil nil
1316 nnimap-server-buffer)))
1317 (cons group (nth 1 uid))
1318 (nnheader-report 'nnimap (imap-error-text nnimap-server-buffer))))))
1320 (deffoo nnimap-request-delete-group (group force &optional server)
1321 (when (nnimap-possibly-change-server server)
1322 (with-current-buffer nnimap-server-buffer
1324 (or (null (imap-mailbox-status group 'uidvalidity))
1325 (imap-mailbox-delete group))
1329 (deffoo nnimap-request-rename-group (group new-name &optional server)
1330 (when (nnimap-possibly-change-server server)
1331 (imap-mailbox-rename group new-name nnimap-server-buffer)))
1333 (defun nnimap-expunge (mailbox server)
1334 (when (nnimap-possibly-change-group mailbox server)
1335 (imap-mailbox-expunge nil nnimap-server-buffer)))
1337 (defun nnimap-acl-get (mailbox server)
1338 (when (nnimap-possibly-change-server server)
1339 (and (imap-capability 'ACL nnimap-server-buffer)
1340 (imap-mailbox-acl-get mailbox nnimap-server-buffer))))
1342 (defun nnimap-acl-edit (mailbox method old-acls new-acls)
1343 (when (nnimap-possibly-change-server (cadr method))
1344 (unless (imap-capability 'ACL nnimap-server-buffer)
1345 (error "Your server does not support ACL editing"))
1346 (with-current-buffer nnimap-server-buffer
1347 ;; delete all removed identifiers
1348 (mapcar (lambda (old-acl)
1349 (unless (assoc (car old-acl) new-acls)
1350 (or (imap-mailbox-acl-delete (car old-acl) mailbox)
1351 (error "Can't delete ACL for %s" (car old-acl)))))
1353 ;; set all changed acl's
1354 (mapcar (lambda (new-acl)
1355 (let ((new-rights (cdr new-acl))
1356 (old-rights (cdr (assoc (car new-acl) old-acls))))
1357 (unless (and old-rights new-rights
1358 (string= old-rights new-rights))
1359 (or (imap-mailbox-acl-set (car new-acl) new-rights mailbox)
1360 (error "Can't set ACL for %s to %s" (car new-acl)
1366 ;;; Internal functions
1369 ;; This is confusing.
1371 ;; mark => read, tick, draft, reply etc
1372 ;; flag => "\\Seen", "\\Flagged", "\\Draft", "gnus-expire" etc
1373 ;; predicate => "SEEN", "FLAGGED", "DRAFT", "KEYWORD gnus-expire" etc
1375 ;; Mark should not really contain 'read since it's not a "mark" in the Gnus
1376 ;; world, but we cheat. Mark == gnus-article-mark-lists + '(read . read).
1379 (defconst nnimap-mark-to-predicate-alist
1381 (lambda (pair) ; cdr is the mark
1382 (or (assoc (cdr pair)
1387 (reply . "ANSWERED")))
1389 (format "KEYWORD gnus-%s" (symbol-name (cdr pair))))))
1390 (cons '(read . read) gnus-article-mark-lists)))
1392 (defun nnimap-mark-to-predicate (pred)
1393 "Convert a Gnus mark (a symbol such as read, tick, expire) to a IMAP predicate.
1394 This is a string such as \"SEEN\", \"FLAGGED\", \"KEYWORD gnus-expire\",
1395 to be used within a IMAP SEARCH query."
1396 (cdr (assq pred nnimap-mark-to-predicate-alist)))
1398 (defconst nnimap-mark-to-flag-alist
1401 (or (assoc (cdr pair)
1403 (tick . "\\Flagged")
1405 (recent . "\\Recent")
1406 (reply . "\\Answered")))
1408 (format "gnus-%s" (symbol-name (cdr pair))))))
1409 (cons '(read . read) gnus-article-mark-lists)))
1411 (defun nnimap-mark-to-flag-1 (preds)
1412 (if (and (not (null preds)) (listp preds))
1413 (cons (nnimap-mark-to-flag (car preds))
1414 (nnimap-mark-to-flag (cdr preds)))
1415 (cdr (assoc preds nnimap-mark-to-flag-alist))))
1417 (defun nnimap-mark-to-flag (preds &optional always-list make-string)
1418 "Convert a Gnus mark (a symbol such as read, tick, expire) to a IMAP flag.
1419 This is a string such as \"\\Seen\", \"\\Flagged\", \"gnus-expire\", to
1420 be used in a STORE FLAGS command."
1421 (let ((result (nnimap-mark-to-flag-1 preds)))
1422 (setq result (if (and (or make-string always-list)
1423 (not (listp result)))
1427 (mapconcat (lambda (flag)
1429 (mapconcat 'identity flag " ")
1434 (defun nnimap-mark-permanent-p (mark &optional group)
1435 "Return t iff MARK can be permanently (between IMAP sessions) saved on articles, in GROUP."
1436 (imap-message-flag-permanent-p (nnimap-mark-to-flag mark)))
1440 (buffer-disable-undo (get-buffer-create nnimap-debug))
1441 (mapcar (lambda (f) (trace-function-background f nnimap-debug))
1443 nnimap-possibly-change-server
1444 nnimap-verify-uidvalidity
1445 nnimap-find-minmax-uid
1446 nnimap-before-find-minmax-bugworkaround
1447 nnimap-possibly-change-group
1448 ;;nnimap-replace-whitespace
1449 nnimap-retrieve-headers-progress
1450 nnimap-retrieve-which-headers
1451 nnimap-group-overview-filename
1452 nnimap-retrieve-headers-from-file
1453 nnimap-retrieve-headers-from-server
1454 nnimap-retrieve-headers
1455 nnimap-open-connection
1457 nnimap-server-opened
1459 nnimap-request-close
1460 nnimap-status-message
1462 nnimap-request-article-part
1463 nnimap-request-article
1466 nnimap-request-group
1468 nnimap-pattern-to-list-arguments
1471 nnimap-retrieve-groups
1472 nnimap-request-update-info-internal
1474 nnimap-request-set-mark
1475 nnimap-split-to-groups
1476 nnimap-split-find-rule
1477 nnimap-split-find-inbox
1478 nnimap-split-articles
1480 nnimap-request-newgroups
1481 nnimap-request-create-group
1482 nnimap-time-substract
1483 nnimap-date-days-ago
1484 nnimap-request-expire-articles-progress
1485 nnimap-request-expire-articles
1486 nnimap-request-move-article
1487 nnimap-request-accept-article
1488 nnimap-request-delete-group
1489 nnimap-request-rename-group
1490 gnus-group-nnimap-expunge
1491 gnus-group-nnimap-edit-acl
1492 gnus-group-nnimap-edit-acl-done
1493 nnimap-group-mode-hook
1494 nnimap-mark-to-predicate
1495 nnimap-mark-to-flag-1
1497 nnimap-mark-permanent-p
1502 ;;; nnimap.el ends here