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
61 (eval-when-compile (require 'cl))
62 (eval-when-compile (require 'gnus-clfns))
63 (eval-and-compile (require 'imap))
75 (defconst nnimap-version "nnimap 1.0")
78 "Reading IMAP mail with Gnus."
81 (defvoo nnimap-address nil
82 "Address of physical IMAP server. If nil, use the virtual server's name.")
84 (defvoo nnimap-server-port nil
85 "Port number on physical IMAP server.
86 If nil, defaults to 993 for SSL connections and 143 otherwise.")
88 ;; Splitting variables
90 (defcustom nnimap-split-crosspost t
91 "If non-nil, do crossposting if several split methods match the mail.
92 If nil, the first match found will be used."
96 (defcustom nnimap-split-inbox nil
97 "Name of mailbox to split mail from.
99 Mail is read from this mailbox and split according to rules in
102 This can be a string or a list of strings."
104 :type '(choice (string)
107 (define-widget 'nnimap-strict-function 'function
108 "This widget only matches values that are functionp.
110 Warning: This means that a value that is the symbol of a not yet
111 loaded function will not match. Use with care."
112 :match 'nnimap-strict-function-match)
114 (defun nnimap-strict-function-match (widget value)
115 "Ignoring WIDGET, match if VALUE is a function."
118 (defcustom nnimap-split-rule nil
119 "Mail will be split according to theese rules.
121 Mail is read from mailbox(es) specified in `nnimap-split-inbox'.
123 If you'd like, for instance, one mail group for mail from the
124 \"gnus-imap\" mailing list, one group for junk mail and leave
125 everything else in the incoming mailbox, you could do something like
128 \(setq nnimap-split-rule '((\"INBOX.gnus-imap\" \"From:.*gnus-imap\")
129 (\"INBOX.junk\" \"Subject:.*buy\")))
131 As you can see, `nnimap-split-rule' is a list of lists, where the first
132 element in each \"rule\" is the name of the IMAP mailbox, and the
133 second is a regexp that nnimap will try to match on the header to find
136 The second element can also be a function. In that case, it will be
137 called narrowed to the headers with the first element of the rule as
138 the argument. It should return a non-nil value if it thinks that the
139 mail belongs in that group.
141 This variable can also have a function as its value, the function will
142 be called with the headers narrowed and should return a group where it
143 thinks the article should be splitted to. See `nnimap-split-fancy'.
145 To allow for different split rules on different virtual servers, and
146 even different split rules in different inboxes on the same server,
147 the syntax of this variable have been extended along the lines of:
149 \(setq nnimap-split-rule
150 '((\"my1server\" (\".*\" ((\"ding\" \"ding@gnus.org\")
151 (\"junk\" \"From:.*Simon\")))
152 (\"my2server\" (\"INBOX\" nnimap-split-fancy))
153 (\"my[34]server\" (\".*\" ((\"private\" \"To:.*Simon\")
154 (\"junk\" my-junk-func)))))
156 The virtual server name is in fact a regexp, so that the same rules
157 may apply to several servers. In the example, the servers
158 \"my3server\" and \"my4server\" both use the same rules. Similarly,
159 the inbox string is also a regexp. The actual splitting rules are as
160 before, either a function, or a list with group/regexp or
161 group/function elements."
163 :type '(choice :tag "Rule type"
164 (repeat :menu-tag "Single-server"
165 :tag "Single-server list"
166 (list (string :tag "Mailbox")
167 (choice :tag "Predicate"
168 (regexp :tag "A regexp")
169 (nnimap-strict-function :tag "A function"))))
170 (choice :menu-tag "A function"
172 (function-item nnimap-split-fancy)
173 (function-item nnmail-split-fancy)
174 (nnimap-strict-function :tag "User-defined function"))
175 (repeat :menu-tag "Multi-server (extended)"
176 :tag "Multi-server list"
177 (list (regexp :tag "Server regexp")
178 (list (regexp :tag "Incoming Mailbox regexp")
179 (repeat :tag "Rules for matching server(s) and mailbox(es)"
180 (list (string :tag "Destination mailbox")
181 (choice :tag "Predicate"
182 (regexp :tag "A Regexp")
183 (nnimap-strict-function :tag "A Function")))))))))
185 (defcustom nnimap-split-predicate "UNSEEN UNDELETED"
186 "The predicate used to find articles to split.
187 If you use another IMAP client to peek on articles but always would
188 like nnimap to split them once it's started, you could change this to
189 \"UNDELETED\". Other available predicates are available in
190 RFC2060 section 6.4.4."
194 (defcustom nnimap-split-fancy nil
195 "Like `nnmail-split-fancy', which see."
199 ;; Authorization / Privacy variables
201 (defvoo nnimap-auth-method nil
204 (defvoo nnimap-stream nil
205 "How nnimap will connect to the server.
207 The default, nil, will try to use the \"best\" method the server can
212 1) you want to connect with SSL. The SSL integration with IMAP is
213 brain-dead so you'll have to tell it specifically.
215 2) your server is more capable than your environment -- i.e. your
216 server accept Kerberos login's but you haven't installed the
217 `imtest' program or your machine isn't configured for Kerberos.
219 Possible choices: kerberos4, ssl, network")
221 (defvoo nnimap-authenticator nil
222 "How nnimap authenticate itself to the server.
224 The default, nil, will try to use the \"best\" method the server can
227 There is only one reason for fiddling with this variable, and that is
228 if your server is more capable than your environment -- i.e. you
229 connect to a server that accept Kerberos login's but you haven't
230 installed the `imtest' program or your machine isn't configured for
233 Possible choices: kerberos4, cram-md5, login, anonymous.")
235 (defvoo nnimap-directory (nnheader-concat gnus-directory "overview/")
236 "Directory to keep NOV cache files for nnimap groups.
237 See also `nnimap-nov-file-name'.")
239 (defvoo nnimap-nov-file-name "nnimap."
240 "NOV cache base filename.
241 The group name and `nnimap-nov-file-name-suffix' will be appended. A
242 typical complete file name would be
243 ~/News/overview/nnimap.pdc.INBOX.ding.nov, or
244 ~/News/overview/nnimap/pdc/INBOX/ding/nov if
245 `nnmail-use-long-file-names' is nil")
247 (defvoo nnimap-nov-file-name-suffix ".novcache"
248 "Suffix for NOV cache base filename.")
250 (defvoo nnimap-nov-is-evil nil
251 "If non-nil, nnimap will never generate or use a local nov database for this backend.
252 Using nov databases will speed up header fetching considerably.
253 Unlike other backends, you do not need to take special care if you
254 flip this variable.")
256 (defvoo nnimap-expunge-on-close 'always ; 'ask, 'never
257 "Whether to expunge a group when it is closed.
258 When a IMAP group with articles marked for deletion is closed, this
259 variable determine if nnimap should actually remove the articles or
262 If always, nnimap always perform a expunge when closing the group.
263 If never, nnimap never expunges articles marked for deletion.
264 If ask, nnimap will ask you if you wish to expunge marked articles.
266 When setting this variable to `never', you can only expunge articles
267 by using `G x' (gnus-group-nnimap-expunge) from the Group buffer.")
269 (defvoo nnimap-list-pattern "*"
270 "A string LIMIT or list of strings with mailbox wildcards used to limit available groups.
271 See below for available wildcards.
273 The LIMIT string can be a cons cell (REFERENCE . LIMIT), where
274 REFERENCE will be passed as the first parameter to LIST/LSUB. The
275 semantics of this are server specific, on the University of Washington
276 server you can specify a directory.
279 '(\"INBOX\" \"mail/*\" (\"~friend/mail/\" . \"list/*\"))
281 There are two wildcards * and %. * matches everything, % matches
282 everything in the current hierarchy.")
284 (defvoo nnimap-news-groups nil
285 "IMAP support a news-like mode, also known as bulletin board mode,
286 where replies is sent via IMAP instead of SMTP.
288 This variable should contain a regexp matching groups where you wish
289 replies to be stored to the mailbox directly.
292 '(\"^[^I][^N][^B][^O][^X].*$\")
294 This will match all groups not beginning with \"INBOX\".
296 Note that there is nothing technically different between mail-like and
297 news-like mailboxes. If you wish to have a group with todo items or
298 similar which you wouldn't want to set up a mailing list for, you can
299 use this to make replies go directly to the group.")
301 (defvoo nnimap-expunge-search-string "UID %s NOT SINCE %s"
302 "IMAP search command to use for articles that are to be expired.
303 The first %s is replaced by a UID set of articles to search on,
304 and the second %s is replaced by a date criterium.
306 One useful (and perhaps the only useful) value to change this to would
307 be `UID %s NOT SENTSINCE %s' to make nnimap use the Date: header
308 instead of the internal date of messages. See section 6.4.4 of RFC
309 2060 for more information on valid strings.")
311 (defvoo nnimap-importantize-dormant t
312 "If non-nil, mark \"dormant\" articles as \"ticked\" for other IMAP clients.
313 Note that within Gnus, dormant articles will still (only) be
314 marked as ticked. This is to make \"dormant\" articles stand out,
315 just like \"ticked\" articles, in other IMAP clients.")
317 (defvoo nnimap-server-address nil
318 "Obsolete. Use `nnimap-address'.")
320 (defcustom nnimap-authinfo-file "~/.authinfo"
321 "Authorization information for IMAP servers. In .netrc format."
324 (repeat :tag "Entries"
327 :value ("" ("login" . "") ("password" . ""))
331 (const :format "" "login")
332 (string :format "Login: %v"))
334 (const :format "" "password")
335 (string :format "Password: %v")))))))
337 (defcustom nnimap-prune-cache t
338 "If non-nil, nnimap check whether articles still exist on server before using data stored in NOV cache."
341 (defvar nnimap-request-list-method 'imap-mailbox-list
342 "Method to use to request a list of all folders from the server.
343 If this is 'imap-mailbox-lsub, then use a server-side subscription list to
344 restrict visible folders.")
346 ;; Internal variables:
348 (defvar nnimap-debug nil
349 "Name of buffer to record debugging info.
350 For example: (setq nnimap-debug \"*nnimap-debug*\")")
351 (defvar nnimap-current-move-server nil)
352 (defvar nnimap-current-move-group nil)
353 (defvar nnimap-current-move-article nil)
354 (defvar nnimap-length)
355 (defvar nnimap-progress-chars '(?| ?/ ?- ?\\))
356 (defvar nnimap-progress-how-often 20)
357 (defvar nnimap-counter)
358 (defvar nnimap-callback-callback-function nil
359 "Gnus callback the nnimap asynchronous callback should call.")
360 (defvar nnimap-callback-buffer nil
361 "Which buffer the asynchronous article prefetch callback should work in.")
362 (defvar nnimap-server-buffer-alist nil) ;; Map server name to buffers.
363 (defvar nnimap-current-server nil) ;; Current server
364 (defvar nnimap-server-buffer nil) ;; Current servers' buffer
368 (nnoo-define-basics nnimap)
370 ;; Utility functions:
372 (defsubst nnimap-get-server-buffer (server)
373 "Return buffer for SERVER, if nil use current server."
374 (cadr (assoc (or server nnimap-current-server) nnimap-server-buffer-alist)))
376 (defun nnimap-possibly-change-server (server)
377 "Return buffer for SERVER, changing the current server as a side-effect.
378 If SERVER is nil, uses the current server."
379 (setq nnimap-current-server (or server nnimap-current-server)
380 nnimap-server-buffer (nnimap-get-server-buffer nnimap-current-server)))
382 (defun nnimap-verify-uidvalidity (group server)
383 "Verify stored uidvalidity match current one in GROUP on SERVER."
384 (let* ((gnusgroup (gnus-group-prefixed-name
385 group (gnus-server-to-method
386 (format "nnimap:%s" server))))
387 (new-uidvalidity (imap-mailbox-get 'uidvalidity))
388 (old-uidvalidity (gnus-group-get-parameter gnusgroup 'uidvalidity))
389 (dir (file-name-as-directory (expand-file-name nnimap-directory)))
390 (nameuid (nnheader-translate-file-chars
391 (concat nnimap-nov-file-name
392 (if (equal server "")
394 server) "." group "." old-uidvalidity
395 nnimap-nov-file-name-suffix) t))
396 (file (if (or nnmail-use-long-file-names
397 (file-exists-p (expand-file-name nameuid dir)))
398 (expand-file-name nameuid dir)
400 (encode-coding-string
401 (nnheader-replace-chars-in-string nameuid ?. ?/)
402 nnmail-pathname-coding-system)
405 (if (not (equal old-uidvalidity new-uidvalidity))
407 (gnus-delete-file file)
408 (gnus-group-set-parameter gnusgroup 'uidvalidity new-uidvalidity)
410 (gnus-group-add-parameter gnusgroup (cons 'uidvalidity new-uidvalidity))
413 (defun nnimap-before-find-minmax-bugworkaround ()
414 "Function called before iterating through mailboxes with
415 `nnimap-find-minmax-uid'."
416 ;; XXX this is for UoW imapd problem, it doesn't notice new mail in
417 ;; currently selected mailbox without a re-select/examine.
418 (or (null (imap-current-mailbox nnimap-server-buffer))
419 (imap-mailbox-unselect nnimap-server-buffer)))
421 (defun nnimap-find-minmax-uid (group &optional examine)
422 "Find lowest and highest active article nummber in GROUP.
423 If EXAMINE is non-nil the group is selected read-only."
424 (with-current-buffer nnimap-server-buffer
425 (when (imap-mailbox-select group examine)
427 (when (> (imap-mailbox-get 'exists) 0)
428 (imap-fetch "1,*" "UID" nil 'nouidfetch)
429 (imap-message-map (lambda (uid Uid)
430 (setq minuid (if minuid (min minuid uid) uid)
431 maxuid (if maxuid (max maxuid uid) uid)))
433 (list (imap-mailbox-get 'exists) minuid maxuid)))))
435 (defun nnimap-possibly-change-group (group &optional server)
436 "Make GROUP the current group, and SERVER the current server."
437 (when (nnimap-possibly-change-server server)
438 (with-current-buffer nnimap-server-buffer
439 (if (or (null group) (imap-current-mailbox-p group))
441 (if (imap-mailbox-select group)
442 (if (or (nnimap-verify-uidvalidity
443 group (or server nnimap-current-server))
444 (zerop (imap-mailbox-get 'exists group))
445 t ;; for OGnus to see if ignoring uidvalidity
446 ;; changes has any bad effects.
449 "nnimap: Group %s is not uidvalid. Continue? " group)))
451 (imap-mailbox-unselect)
452 (error "nnimap: Group %s is not uid-valid" group))
453 (nnheader-report 'nnimap (imap-error-text)))))))
455 (defun nnimap-replace-whitespace (string)
456 "Return STRING with all whitespace replaced with space."
458 (while (string-match "[\r\n\t]+" string)
459 (setq string (replace-match " " t t string)))
462 ;; Required backend functions
464 (defun nnimap-retrieve-headers-progress ()
465 "Hook to insert NOV line for current article into `nntp-server-buffer'."
466 (and (numberp nnmail-large-newsgroup)
467 (zerop (% (incf nnimap-counter) nnimap-progress-how-often))
468 (> nnimap-length nnmail-large-newsgroup)
469 (nnheader-message 6 "nnimap: Retrieving headers... %c"
470 (nth (/ (% nnimap-counter
471 (* (length nnimap-progress-chars)
472 nnimap-progress-how-often))
473 nnimap-progress-how-often)
474 nnimap-progress-chars)))
475 (with-current-buffer nntp-server-buffer
476 (let (headers lines chars uid mbx)
477 (with-current-buffer nnimap-server-buffer
478 (setq uid imap-current-message
479 mbx imap-current-mailbox
480 headers (nnimap-demule
481 (if (imap-capability 'IMAP4rev1)
482 ;; xxx don't just use car? alist doesn't contain
483 ;; anything else now, but it might...
484 (nth 2 (car (imap-message-get uid 'BODYDETAIL)))
485 (imap-message-get uid 'RFC822.HEADER)))
486 lines (imap-body-lines (imap-message-body imap-current-message))
487 chars (imap-message-get imap-current-message 'RFC822.SIZE)))
490 (buffer-disable-undo)
492 (nnheader-fold-continuation-lines)
493 (subst-char-in-region (point-min) (point-max) ?\t ? )
494 (nnheader-ms-strip-cr)
495 (nnheader-fold-continuation-lines)
496 (subst-char-in-region (point-min) (point-max) ?\t ? )
497 (let ((head (nnheader-parse-head 'naked)))
498 (mail-header-set-number head uid)
499 (mail-header-set-chars head chars)
500 (mail-header-set-lines head lines)
501 (mail-header-set-xref
502 head (format "%s %s:%d" (system-name) mbx uid))
505 (defun nnimap-retrieve-which-headers (articles fetch-old)
506 "Get a range of articles to fetch based on ARTICLES and FETCH-OLD."
507 (with-current-buffer nnimap-server-buffer
508 (if (numberp (car-safe articles))
511 (imap-range-to-message-set
512 (gnus-compress-sequence
513 (append (gnus-uncompress-sequence
515 (cons (if (numberp fetch-old)
516 (max 1 (- (car articles) fetch-old))
518 (1- (car articles)))))
520 (mapcar (lambda (msgid)
522 (format "HEADER Message-Id \"%s\"" msgid)))
525 (defun nnimap-group-overview-filename (group server)
526 "Make pathname for GROUP on SERVER."
527 (let* ((dir (file-name-as-directory (expand-file-name nnimap-directory)))
528 (uidvalidity (gnus-group-get-parameter
529 (gnus-group-prefixed-name
530 group (gnus-server-to-method
531 (format "nnimap:%s" server)))
533 (name (nnheader-translate-file-chars
534 (concat nnimap-nov-file-name
535 (if (equal server "")
537 server) "." group nnimap-nov-file-name-suffix) t))
538 (nameuid (nnheader-translate-file-chars
539 (concat nnimap-nov-file-name
540 (if (equal server "")
542 server) "." group "." uidvalidity
543 nnimap-nov-file-name-suffix) t))
544 (oldfile (if (or nnmail-use-long-file-names
545 (file-exists-p (expand-file-name name dir)))
546 (expand-file-name name dir)
548 (encode-coding-string
549 (nnheader-replace-chars-in-string name ?. ?/)
550 nnmail-pathname-coding-system)
552 (newfile (if (or nnmail-use-long-file-names
553 (file-exists-p (expand-file-name nameuid dir)))
554 (expand-file-name nameuid dir)
556 (encode-coding-string
557 (nnheader-replace-chars-in-string nameuid ?. ?/)
558 nnmail-pathname-coding-system)
560 (when (and (file-exists-p oldfile) (not (file-exists-p newfile)))
561 (message "nnimap: Upgrading novcache filename...")
563 (gnus-make-directory (file-name-directory newfile))
564 (unless (ignore-errors (rename-file oldfile newfile) t)
565 (if (ignore-errors (copy-file oldfile newfile) t)
566 (delete-file oldfile)
567 (error "Can't rename `%s' to `%s'" oldfile newfile))))
570 (defun nnimap-retrieve-headers-from-file (group server)
571 (with-current-buffer nntp-server-buffer
572 (let ((nov (nnimap-group-overview-filename group server)))
573 (when (file-exists-p nov)
574 (nnheader-insert-file-contents nov)
575 (set-buffer-modified-p nil)
576 (let ((min (ignore-errors (goto-char (point-min))
577 (read (current-buffer))))
578 (max (ignore-errors (goto-char (point-max))
580 (read (current-buffer)))))
581 (if (and (numberp min) (numberp max))
583 ;; junk, remove it, it's saved later
587 (defun nnimap-retrieve-headers-from-server (articles group server)
588 (with-current-buffer nnimap-server-buffer
589 (let ((imap-fetch-data-hook '(nnimap-retrieve-headers-progress))
590 (nnimap-length (gnus-range-length articles))
592 (imap-fetch (imap-range-to-message-set articles)
593 (concat "(UID RFC822.SIZE BODY "
595 (append '(Subject From Date Message-Id
596 References In-Reply-To Xref)
598 nnmail-extra-headers))))
599 (if (imap-capability 'IMAP4rev1)
600 (format "BODY.PEEK[HEADER.FIELDS %s])" headers)
601 (format "RFC822.HEADER.LINES %s)" headers)))))
602 (and (numberp nnmail-large-newsgroup)
603 (> nnimap-length nnmail-large-newsgroup)
604 (nnheader-message 6 "nnimap: Retrieving headers...done")))))
606 (defun nnimap-dont-use-nov-p (group server)
607 (or gnus-nov-is-evil nnimap-nov-is-evil
608 (unless (and (gnus-make-directory
610 (nnimap-group-overview-filename group server)))
612 (nnimap-group-overview-filename group server)))
613 (message "nnimap: Nov cache not writable, %s"
614 (nnimap-group-overview-filename group server)))))
616 (deffoo nnimap-retrieve-headers (articles &optional group server fetch-old)
617 (when (nnimap-possibly-change-group group server)
618 (with-current-buffer nntp-server-buffer
620 (if (nnimap-dont-use-nov-p group server)
621 (nnimap-retrieve-headers-from-server
622 (gnus-compress-sequence articles) group server)
623 (let (uids cached low high)
624 (when (setq uids (nnimap-retrieve-which-headers articles fetch-old)
626 high (car (last uids)))
627 (if (setq cached (nnimap-retrieve-headers-from-file group server))
629 ;; fetch articles with uids before cache block
630 (when (< low (car cached))
631 (goto-char (point-min))
632 (nnimap-retrieve-headers-from-server
633 (cons low (1- (car cached))) group server))
634 ;; fetch articles with uids after cache block
635 (when (> high (cdr cached))
636 (goto-char (point-max))
637 (nnimap-retrieve-headers-from-server
638 (cons (1+ (cdr cached)) high) group server))
639 (when nnimap-prune-cache
640 ;; remove nov's for articles which has expired on server
641 (goto-char (point-min))
642 (dolist (uid (gnus-set-difference articles uids))
643 (when (re-search-forward (format "^%d\t" uid) nil t)
644 (gnus-delete-line)))))
645 ;; nothing cached, fetch whole range from server
646 (nnimap-retrieve-headers-from-server
647 (cons low high) group server))
648 (when (buffer-modified-p)
650 1 (point-max) (nnimap-group-overview-filename group server)
652 (nnheader-nov-delete-outside-range low high))))
655 (defun nnimap-open-connection (server)
656 (if (not (imap-open nnimap-address nnimap-server-port nnimap-stream
657 nnimap-authenticator nnimap-server-buffer))
658 (nnheader-report 'nnimap "Can't open connection to server %s" server)
659 (unless (or (imap-capability 'IMAP4 nnimap-server-buffer)
660 (imap-capability 'IMAP4rev1 nnimap-server-buffer))
661 (imap-close nnimap-server-buffer)
662 (nnheader-report 'nnimap "Server %s is not IMAP4 compliant" server))
663 (let* ((list (gnus-parse-netrc nnimap-authinfo-file))
664 (port (if nnimap-server-port
665 (int-to-string nnimap-server-port)
667 (alist (gnus-netrc-machine list (or nnimap-server-address
668 nnimap-address server)
670 (user (gnus-netrc-get alist "login"))
671 (passwd (gnus-netrc-get alist "password")))
672 (if (imap-authenticate user passwd nnimap-server-buffer)
674 (push (list server nnimap-server-buffer)
675 nnimap-server-buffer-alist)
676 (nnimap-possibly-change-server server))
677 (imap-close nnimap-server-buffer)
678 (kill-buffer nnimap-server-buffer)
679 (nnheader-report 'nnimap "Could not authenticate to %s" server)))))
681 (deffoo nnimap-open-server (server &optional defs)
682 (nnheader-init-server-buffer)
683 (if (nnimap-server-opened server)
685 (unless (assq 'nnimap-server-buffer defs)
686 (push (list 'nnimap-server-buffer (concat " *nnimap* " server)) defs))
687 ;; translate `nnimap-server-address' to `nnimap-address' in defs
688 ;; for people that configured nnimap with a very old version
689 (unless (assq 'nnimap-address defs)
690 (if (assq 'nnimap-server-address defs)
691 (push (list 'nnimap-address
692 (cadr (assq 'nnimap-server-address defs))) defs)
693 (push (list 'nnimap-address server) defs)))
694 (nnoo-change-server 'nnimap server defs)
695 (or nnimap-server-buffer
696 (setq nnimap-server-buffer (cadr (assq 'nnimap-server-buffer defs))))
697 (with-current-buffer (get-buffer-create nnimap-server-buffer)
698 (nnoo-change-server 'nnimap server defs))
699 (or (and nnimap-server-buffer
700 (imap-opened nnimap-server-buffer))
701 (nnimap-open-connection server))))
703 (deffoo nnimap-server-opened (&optional server)
704 "Whether SERVER is opened.
705 If SERVER is the current virtual server, and the connection to the
706 physical server is alive, this function return a non-nil value. If
707 SERVER is nil, it is treated as the current server."
708 ;; clean up autologouts??
709 (and (or server nnimap-current-server)
710 (nnoo-server-opened 'nnimap (or server nnimap-current-server))
711 (imap-opened (nnimap-get-server-buffer server))))
713 (deffoo nnimap-close-server (&optional server)
714 "Close connection to server and free all resources connected to it.
715 Return nil if the server couldn't be closed for some reason."
716 (let ((server (or server nnimap-current-server)))
717 (when (or (nnimap-server-opened server)
718 (imap-opened (nnimap-get-server-buffer server)))
719 (imap-close (nnimap-get-server-buffer server))
720 (kill-buffer (nnimap-get-server-buffer server))
721 (setq nnimap-server-buffer nil
722 nnimap-current-server nil
723 nnimap-server-buffer-alist
724 (delq server nnimap-server-buffer-alist)))
725 (nnoo-close-server 'nnimap server)))
727 (deffoo nnimap-request-close ()
728 "Close connection to all servers and free all resources that the backend have reserved.
729 All buffers that have been created by that
730 backend should be killed. (Not the nntp-server-buffer, though.) This
731 function is generally only called when Gnus is shutting down."
732 (mapcar (lambda (server) (nnimap-close-server (car server)))
733 nnimap-server-buffer-alist)
734 (setq nnimap-server-buffer-alist nil))
736 (deffoo nnimap-status-message (&optional server)
737 "This function returns the last error message from server."
738 (when (nnimap-possibly-change-server server)
739 (nnoo-status-message 'nnimap server)))
741 (defun nnimap-demule (string)
742 (funcall (if (and (fboundp 'string-as-multibyte)
743 (subrp (symbol-function 'string-as-multibyte)))
748 (defun nnimap-callback ()
749 (remove-hook 'imap-fetch-data-hook 'nnimap-callback)
750 (with-current-buffer nnimap-callback-buffer
752 (with-current-buffer nnimap-server-buffer
753 (if (imap-capability 'IMAP4rev1)
754 ;; xxx don't just use car? alist doesn't contain
755 ;; anything else now, but it might...
756 (nth 2 (car (imap-message-get (imap-current-message) 'BODYDETAIL)))
757 (imap-message-get (imap-current-message) 'RFC822))))
758 (nnheader-ms-strip-cr)
759 (funcall nnimap-callback-callback-function t)))
761 (defun nnimap-request-article-part (article part prop &optional
762 group server to-buffer detail)
763 (when (nnimap-possibly-change-group group server)
764 (let ((article (if (stringp article)
765 (car-safe (imap-search
766 (format "HEADER Message-Id \"%s\"" article)
767 nnimap-server-buffer))
770 (gnus-message 10 "nnimap: Fetching (part of) article %d..." article)
771 (if (not nnheader-callback-function)
772 (with-current-buffer (or to-buffer nntp-server-buffer)
774 (let ((data (imap-fetch article part prop nil
775 nnimap-server-buffer)))
777 (insert (if detail (nth 2 (car data)) data))
778 (nnheader-ms-strip-cr)
780 "nnimap: Fetching (part of) article %d...done"
783 (nnheader-report 'nnimap "No such article: %s"
784 (imap-error-text nnimap-server-buffer))
785 (cons group article)))))
786 (add-hook 'imap-fetch-data-hook 'nnimap-callback)
787 (setq nnimap-callback-callback-function nnheader-callback-function
788 nnimap-callback-buffer nntp-server-buffer)
789 (imap-fetch-asynch article part nil nnimap-server-buffer)
790 (cons group article))))))
792 (deffoo nnimap-asynchronous-p ()
795 (deffoo nnimap-request-article (article &optional group server to-buffer)
796 (if (imap-capability 'IMAP4rev1 nnimap-server-buffer)
797 (nnimap-request-article-part
798 article "BODY.PEEK[]" 'BODYDETAIL group server to-buffer 'detail)
799 (nnimap-request-article-part
800 article "RFC822.PEEK" 'RFC822 group server to-buffer)))
802 (deffoo nnimap-request-head (article &optional group server to-buffer)
803 (if (imap-capability 'IMAP4rev1 nnimap-server-buffer)
804 (nnimap-request-article-part
805 article "BODY.PEEK[HEADER]" 'BODYDETAIL group server to-buffer 'detail)
806 (nnimap-request-article-part
807 article "RFC822.HEADER" 'RFC822.HEADER group server to-buffer)))
809 (deffoo nnimap-request-body (article &optional group server to-buffer)
810 (if (imap-capability 'IMAP4rev1 nnimap-server-buffer)
811 (nnimap-request-article-part
812 article "BODY.PEEK[TEXT]" 'BODYDETAIL group server to-buffer 'detail)
813 (nnimap-request-article-part
814 article "RFC822.TEXT.PEEK" 'RFC822.TEXT group server to-buffer)))
816 (deffoo nnimap-request-group (group &optional server fast)
817 (nnimap-request-update-info-internal
819 (gnus-get-info (gnus-group-prefixed-name
820 group (gnus-server-to-method (format "nnimap:%s" server))))
822 (when (nnimap-possibly-change-group group server)
823 (nnimap-before-find-minmax-bugworkaround)
826 ((null (setq info (nnimap-find-minmax-uid group t)))
827 (nnheader-report 'nnimap "Could not get active info for %s"
830 (nnheader-insert "211 %d %d %d %s\n" (or (nth 0 info) 0)
831 (max 1 (or (nth 1 info) 1))
832 (or (nth 2 info) 0) group)
833 (nnheader-report 'nnimap "Group %s selected" group)
836 (defun nnimap-close-group (group &optional server)
837 (with-current-buffer nnimap-server-buffer
838 (when (and (imap-opened)
839 (nnimap-possibly-change-group group server))
840 (case nnimap-expunge-on-close
841 ('always (imap-mailbox-expunge)
842 (imap-mailbox-close))
843 ('ask (if (and (imap-search "DELETED")
844 (gnus-y-or-n-p (format
845 "Expunge articles in group `%s'? "
846 imap-current-mailbox)))
847 (progn (imap-mailbox-expunge)
848 (imap-mailbox-close))
849 (imap-mailbox-unselect)))
850 (t (imap-mailbox-unselect)))
851 (not imap-current-mailbox))))
853 (defun nnimap-pattern-to-list-arguments (pattern)
855 (cons (car-safe p) (or (cdr-safe p) p)))
856 (if (and (listp pattern)
857 (listp (cdr pattern)))
861 (deffoo nnimap-request-list (&optional server)
862 (when (nnimap-possibly-change-server server)
863 (with-current-buffer nntp-server-buffer
865 (gnus-message 5 "nnimap: Generating active list%s..."
866 (if (> (length server) 0) (concat " for " server) ""))
867 (nnimap-before-find-minmax-bugworkaround)
868 (with-current-buffer nnimap-server-buffer
869 (dolist (pattern (nnimap-pattern-to-list-arguments nnimap-list-pattern))
870 (dolist (mbx (funcall nnimap-request-list-method
871 (cdr pattern) (car pattern)))
872 (or (member "\\NoSelect" (imap-mailbox-get 'list-flags mbx))
873 (let ((info (nnimap-find-minmax-uid mbx 'examine)))
875 (with-current-buffer nntp-server-buffer
876 (insert (format "\"%s\" %d %d y\n"
877 mbx (or (nth 2 info) 0)
878 (max 1 (or (nth 1 info) 1)))))))))))
879 (gnus-message 5 "nnimap: Generating active list%s...done"
880 (if (> (length server) 0) (concat " for " server) ""))
883 (deffoo nnimap-request-post (&optional server)
885 (dolist (mbx (message-unquote-tokens
886 (message-tokenize-header
887 (message-fetch-field "Newsgroups") ", ")) success)
888 (let ((to-newsgroup (gnus-group-prefixed-name mbx gnus-command-method)))
889 (or (gnus-active to-newsgroup)
890 (gnus-activate-group to-newsgroup)
891 (if (gnus-y-or-n-p (format "No such group: %s. Create it? "
893 (or (and (gnus-request-create-group
894 to-newsgroup gnus-command-method)
895 (gnus-activate-group to-newsgroup nil nil
896 gnus-command-method))
897 (error "Couldn't create group %s" to-newsgroup)))
898 (error "No such group: %s" to-newsgroup))
899 (unless (nnimap-request-accept-article mbx (nth 1 gnus-command-method))
900 (setq success nil))))))
902 ;; Optional backend functions
904 (deffoo nnimap-retrieve-groups (groups &optional server)
905 (when (nnimap-possibly-change-server server)
906 (gnus-message 5 "nnimap: Checking mailboxes...")
907 (with-current-buffer nntp-server-buffer
909 (nnimap-before-find-minmax-bugworkaround)
910 (dolist (group groups)
911 (gnus-message 7 "nnimap: Checking mailbox %s" group)
912 (or (member "\\NoSelect"
913 (imap-mailbox-get 'list-flags group nnimap-server-buffer))
914 (let ((info (nnimap-find-minmax-uid group 'examine)))
915 (when (> (or (imap-mailbox-get 'recent group
916 nnimap-server-buffer) 0)
918 (push (list (cons group 0)) nnmail-split-history))
919 (insert (format "\"%s\" %d %d y\n" group
921 (max 1 (or (nth 1 info) 1))))))))
922 (gnus-message 5 "nnimap: Checking mailboxes...done")
925 (deffoo nnimap-request-update-info-internal (group info &optional server)
926 (when (nnimap-possibly-change-group group server)
927 (when info;; xxx what does this mean? should we create a info?
928 (with-current-buffer nnimap-server-buffer
929 (gnus-message 5 "nnimap: Updating info for %s..."
930 (gnus-info-group info))
932 (when (nnimap-mark-permanent-p 'read)
934 ;; read info could contain articles marked unread by other
935 ;; imap clients! we correct this
936 (setq seen (gnus-uncompress-range (gnus-info-read info))
937 unseen (imap-search "UNSEEN UNDELETED")
938 seen (gnus-set-difference seen unseen)
939 ;; seen might lack articles marked as read by other
940 ;; imap clients! we correct this
941 seen (append seen (imap-search "SEEN"))
944 seen (gnus-compress-sequence seen t)
945 ;; we can't return '(1) since this isn't a "list of ranges",
946 ;; and we can't return '((1)) since g-list-of-unread-articles
947 ;; is buggy so we return '((1 . 1)).
948 seen (if (and (integerp (car seen))
950 (list (cons (car seen) (car seen)))
952 (gnus-info-set-read info seen)))
954 (mapcar (lambda (pred)
955 (when (or (eq (cdr pred) 'recent)
956 (and (nnimap-mark-permanent-p (cdr pred))
957 (member (nnimap-mark-to-flag (cdr pred))
958 (imap-mailbox-get 'flags))))
961 (gnus-update-alist-soft
963 (gnus-compress-sequence
964 (imap-search (nnimap-mark-to-predicate (cdr pred))))
965 (gnus-info-marks info))
967 gnus-article-mark-lists)
969 (when nnimap-importantize-dormant
970 ;; nnimap mark dormant article as ticked too (for other clients)
971 ;; so we remove that mark for gnus since we support dormant
974 (gnus-update-alist-soft
976 (gnus-remove-from-range
977 (cdr-safe (assoc 'tick (gnus-info-marks info)))
978 (cdr-safe (assoc 'dormant (gnus-info-marks info))))
979 (gnus-info-marks info))
982 (gnus-message 5 "nnimap: Updating info for %s...done"
983 (gnus-info-group info))
987 (deffoo nnimap-request-type (group &optional article)
988 (if (and nnimap-news-groups (string-match nnimap-news-groups group))
992 (deffoo nnimap-request-set-mark (group actions &optional server)
993 (when (nnimap-possibly-change-group group server)
994 (with-current-buffer nnimap-server-buffer
996 (gnus-message 7 "nnimap: Setting marks in %s..." group)
997 (while (setq action (pop actions))
998 (let ((range (nth 0 action))
999 (what (nth 1 action))
1000 (cmdmarks (nth 2 action))
1002 ;; bookmark can't be stored (not list/range
1003 (setq cmdmarks (delq 'bookmark cmdmarks))
1004 ;; killed can't be stored (not list/range
1005 (setq cmdmarks (delq 'killed cmdmarks))
1006 ;; unsent are for nndraft groups only
1007 (setq cmdmarks (delq 'unsent cmdmarks))
1008 ;; cache flags are pointless on the server
1009 (setq cmdmarks (delq 'cache cmdmarks))
1010 ;; seen flags are local to each gnus
1011 (setq cmdmarks (delq 'seen cmdmarks))
1012 ;; recent marks can't be set
1013 (setq cmdmarks (delq 'recent cmdmarks))
1014 (when nnimap-importantize-dormant
1015 ;; flag dormant articles as ticked
1016 (if (memq 'dormant cmdmarks)
1017 (setq cmdmarks (cons 'tick cmdmarks))))
1018 ;; remove stuff we are forbidden to store
1019 (mapcar (lambda (mark)
1020 (if (imap-message-flag-permanent-p
1021 (nnimap-mark-to-flag mark))
1022 (setq marks (cons mark marks))))
1024 (when (and range marks)
1025 (cond ((eq what 'del)
1026 (imap-message-flags-del
1027 (imap-range-to-message-set range)
1028 (nnimap-mark-to-flag marks nil t)))
1030 (imap-message-flags-add
1031 (imap-range-to-message-set range)
1032 (nnimap-mark-to-flag marks nil t)))
1034 (imap-message-flags-set
1035 (imap-range-to-message-set range)
1036 (nnimap-mark-to-flag marks nil t)))))))
1037 (gnus-message 7 "nnimap: Setting marks in %s...done" group))))
1040 (defun nnimap-split-fancy ()
1041 "Like nnmail-split-fancy, but uses nnimap-split-fancy."
1042 (let ((nnmail-split-fancy nnimap-split-fancy))
1043 (nnmail-split-fancy)))
1045 (defun nnimap-split-to-groups (rules)
1046 ;; tries to match all rules in nnimap-split-rule against content of
1047 ;; nntp-server-buffer, returns a list of groups that matched.
1048 (with-current-buffer nntp-server-buffer
1049 ;; Fold continuation lines.
1050 (goto-char (point-min))
1051 (while (re-search-forward "\\(\r?\n[ \t]+\\)+" nil t)
1052 (replace-match " " t t))
1053 (if (functionp rules)
1055 (let (to-groups regrepp)
1057 (dolist (rule rules to-groups)
1058 (let ((group (car rule))
1059 (regexp (cadr rule)))
1060 (goto-char (point-min))
1061 (when (and (if (stringp regexp)
1063 (setq regrepp (string-match "\\\\[0-9&]" group))
1064 (re-search-forward regexp nil t))
1065 (funcall regexp group))
1066 ;; Don't enter the article into the same group twice.
1067 (not (assoc group to-groups)))
1069 (nnmail-expand-newtext group)
1072 (or nnimap-split-crosspost
1073 (throw 'split-done to-groups))))))))))
1075 (defun nnimap-assoc-match (key alist)
1077 (while (and alist (not element))
1078 (if (string-match (car (car alist)) key)
1079 (setq element (car alist)))
1080 (setq alist (cdr alist)))
1083 (defun nnimap-split-find-rule (server inbox)
1084 (if (and (listp nnimap-split-rule) (listp (car nnimap-split-rule))
1085 (list (cdar nnimap-split-rule)) (listp (cadar nnimap-split-rule)))
1087 (cadr (nnimap-assoc-match inbox (cdr (nnimap-assoc-match
1088 server nnimap-split-rule))))
1091 (defun nnimap-split-find-inbox (server)
1092 (if (listp nnimap-split-inbox)
1094 (list nnimap-split-inbox)))
1096 (defun nnimap-split-articles (&optional group server)
1097 (when (nnimap-possibly-change-server server)
1098 (with-current-buffer nnimap-server-buffer
1099 (let (rule inbox removeorig (inboxes (nnimap-split-find-inbox server)))
1100 ;; iterate over inboxes
1101 (while (and (setq inbox (pop inboxes))
1102 (nnimap-possibly-change-group inbox));; SELECT
1103 ;; find split rule for this server / inbox
1104 (when (setq rule (nnimap-split-find-rule server inbox))
1105 ;; iterate over articles
1106 (dolist (article (imap-search nnimap-split-predicate))
1107 (when (nnimap-request-head article)
1108 ;; copy article to right group(s)
1109 (setq removeorig nil)
1110 (dolist (to-group (nnimap-split-to-groups rule))
1111 (cond ((eq to-group 'junk)
1112 (message "IMAP split removed %s:%s:%d" server inbox
1114 (setq removeorig t))
1115 ((imap-message-copy (number-to-string article)
1116 to-group nil 'nocopyuid)
1117 (message "IMAP split moved %s:%s:%d to %s" server
1118 inbox article to-group)
1120 ;; Add the group-art list to the history list.
1121 (push (list (cons to-group 0)) nnmail-split-history))
1123 (message "IMAP split failed to move %s:%s:%d to %s"
1124 server inbox article to-group))))
1125 ;; remove article if it was successfully copied somewhere
1127 (imap-message-flags-add (format "%d" article)
1128 "\\Seen \\Deleted")))))
1129 (when (imap-mailbox-select inbox);; just in case
1130 ;; todo: UID EXPUNGE (if available) to remove splitted articles
1131 (imap-mailbox-expunge)
1132 (imap-mailbox-close)))
1135 (deffoo nnimap-request-scan (&optional group server)
1136 (nnimap-split-articles group server))
1138 (deffoo nnimap-request-newgroups (date &optional server)
1139 (when (nnimap-possibly-change-server server)
1140 (with-current-buffer nntp-server-buffer
1141 (gnus-message 5 "nnimap: Listing subscribed mailboxes%s%s..."
1142 (if (> (length server) 0) " on " "") server)
1144 (nnimap-before-find-minmax-bugworkaround)
1145 (dolist (pattern (nnimap-pattern-to-list-arguments
1146 nnimap-list-pattern))
1147 (dolist (mbx (imap-mailbox-lsub "*" (car pattern) nil
1148 nnimap-server-buffer))
1150 (dolist (mailbox (imap-mailbox-get 'list-flags mbx
1151 nnimap-server-buffer))
1152 (if (string= (downcase mailbox) "\\noselect")
1155 (let ((info (nnimap-find-minmax-uid mbx 'examine)))
1157 (insert (format "\"%s\" %d %d y\n"
1158 mbx (or (nth 2 info) 0)
1159 (max 1 (or (nth 1 info) 1)))))))))
1160 (gnus-message 5 "nnimap: Listing subscribed mailboxes%s%s...done"
1161 (if (> (length server) 0) " on " "") server))
1164 (deffoo nnimap-request-create-group (group &optional server args)
1165 (when (nnimap-possibly-change-server server)
1166 (or (imap-mailbox-status group 'uidvalidity nnimap-server-buffer)
1167 (imap-mailbox-create group nnimap-server-buffer))))
1169 (defun nnimap-time-substract (time1 time2)
1170 "Return TIME for TIME1 - TIME2."
1171 (let* ((ms (- (car time1) (car time2)))
1172 (ls (- (nth 1 time1) (nth 1 time2))))
1174 (list (- ms 1) (+ (expt 2 16) ls))
1177 (defun nnimap-date-days-ago (daysago)
1178 "Return date, in format \"3-Aug-1998\", for DAYSAGO days ago."
1179 (let* ((time (nnimap-time-substract (current-time) (days-to-time daysago)))
1180 (date (format-time-string
1181 (format "%%d-%s-%%Y"
1182 (capitalize (car (rassoc (nth 4 (decode-time time))
1183 parse-time-months))))
1185 (if (eq ?0 (string-to-char date))
1189 (defun nnimap-request-expire-articles-progress ()
1190 (gnus-message 5 "nnimap: Marking article %d for deletion..."
1191 imap-current-message))
1194 (defun nnimap-expiry-target (arts group server)
1195 (unless (eq nnmail-expiry-target 'delete)
1197 (dolist (art (gnus-uncompress-sequence arts))
1198 (nnimap-request-article art group server (current-buffer))
1199 ;; hints for optimization in `nnimap-request-accept-article'
1200 (let ((nnimap-current-move-article art)
1201 (nnimap-current-move-group group)
1202 (nnimap-current-move-server server))
1203 (nnmail-expiry-target-group nnmail-expiry-target group))))
1204 ;; It is not clear if `nnmail-expiry-target' somehow cause the
1205 ;; current group to be changed or not, so we make sure here.
1206 (nnimap-possibly-change-group group server)))
1208 ;; Notice that we don't actually delete anything, we just mark them deleted.
1209 (deffoo nnimap-request-expire-articles (articles group &optional server force)
1210 (let ((artseq (gnus-compress-sequence articles)))
1211 (when (and artseq (nnimap-possibly-change-group group server))
1212 (with-current-buffer nnimap-server-buffer
1215 (nnimap-expiry-target artseq group server)
1216 (when (imap-message-flags-add (imap-range-to-message-set artseq)
1218 (setq articles nil)))
1219 (let ((days (or (and nnmail-expiry-wait-function
1220 (funcall nnmail-expiry-wait-function group))
1221 nnmail-expiry-wait)))
1222 (cond ((eq days 'immediate)
1223 (nnimap-expiry-target artseq group server)
1224 (when (imap-message-flags-add
1225 (imap-range-to-message-set artseq) "\\Deleted")
1226 (setq articles nil)))
1228 (let ((oldarts (imap-search
1229 (format nnimap-expunge-search-string
1230 (imap-range-to-message-set artseq)
1231 (nnimap-date-days-ago days))))
1232 (imap-fetch-data-hook
1233 '(nnimap-request-expire-articles-progress)))
1234 (nnimap-expiry-target oldarts group server)
1236 (imap-message-flags-add
1237 (imap-range-to-message-set
1238 (gnus-compress-sequence oldarts))
1240 (setq articles (gnus-set-difference
1241 articles oldarts)))))))))))
1242 ;; return articles not deleted
1245 (deffoo nnimap-request-move-article (article group server
1246 accept-form &optional last)
1247 (when (nnimap-possibly-change-server server)
1249 (let ((buf (get-buffer-create " *nnimap move*"))
1250 (nnimap-current-move-article article)
1251 (nnimap-current-move-group group)
1252 (nnimap-current-move-server nnimap-current-server)
1254 (and (nnimap-request-article article group server)
1257 (buffer-disable-undo (current-buffer))
1258 (insert-buffer-substring nntp-server-buffer)
1259 (setq result (eval accept-form))
1262 (imap-message-flags-add
1263 (imap-range-to-message-set (list article))
1264 "\\Deleted" 'silent nnimap-server-buffer))
1267 (deffoo nnimap-request-accept-article (group &optional server last)
1268 (when (nnimap-possibly-change-server server)
1271 (if (string= nnimap-current-server nnimap-current-move-server)
1272 ;; moving article within same server, speed it up...
1273 (and (nnimap-possibly-change-group
1274 nnimap-current-move-group)
1275 (imap-message-copy (number-to-string
1276 nnimap-current-move-article)
1277 group 'dontcreate nil
1278 nnimap-server-buffer))
1279 (with-current-buffer (current-buffer)
1280 (goto-char (point-min))
1281 ;; remove any 'From blabla' lines, some IMAP servers
1282 ;; reject the entire message otherwise.
1283 (when (looking-at "^From[^:]")
1284 (kill-region (point) (progn (forward-line) (point))))
1285 ;; turn into rfc822 format (\r\n eol's)
1286 (while (search-forward "\n" nil t)
1287 (replace-match "\r\n")))
1288 ;; this 'or' is for Cyrus server bug
1289 (or (null (imap-current-mailbox nnimap-server-buffer))
1290 (imap-mailbox-unselect nnimap-server-buffer))
1291 (imap-message-append group (current-buffer) nil nil
1292 nnimap-server-buffer)))
1293 (cons group (nth 1 uid))
1294 (nnheader-report 'nnimap (imap-error-text nnimap-server-buffer))))))
1296 (deffoo nnimap-request-delete-group (group force &optional server)
1297 (when (nnimap-possibly-change-server server)
1298 (with-current-buffer nnimap-server-buffer
1300 (or (null (imap-mailbox-status group 'uidvalidity))
1301 (imap-mailbox-delete group))
1305 (deffoo nnimap-request-rename-group (group new-name &optional server)
1306 (when (nnimap-possibly-change-server server)
1307 (imap-mailbox-rename group new-name nnimap-server-buffer)))
1309 (defun nnimap-expunge (mailbox server)
1310 (when (nnimap-possibly-change-group mailbox server)
1311 (imap-mailbox-expunge nnimap-server-buffer)))
1313 (defun nnimap-acl-get (mailbox server)
1314 (when (nnimap-possibly-change-server server)
1315 (and (imap-capability 'ACL nnimap-server-buffer)
1316 (imap-mailbox-acl-get mailbox nnimap-server-buffer))))
1318 (defun nnimap-acl-edit (mailbox method old-acls new-acls)
1319 (when (nnimap-possibly-change-server (cadr method))
1320 (unless (imap-capability 'ACL nnimap-server-buffer)
1321 (error "Your server does not support ACL editing"))
1322 (with-current-buffer nnimap-server-buffer
1323 ;; delete all removed identifiers
1324 (mapcar (lambda (old-acl)
1325 (unless (assoc (car old-acl) new-acls)
1326 (or (imap-mailbox-acl-delete (car old-acl) mailbox)
1327 (error "Can't delete ACL for %s" (car old-acl)))))
1329 ;; set all changed acl's
1330 (mapcar (lambda (new-acl)
1331 (let ((new-rights (cdr new-acl))
1332 (old-rights (cdr (assoc (car new-acl) old-acls))))
1333 (unless (and old-rights new-rights
1334 (string= old-rights new-rights))
1335 (or (imap-mailbox-acl-set (car new-acl) new-rights mailbox)
1336 (error "Can't set ACL for %s to %s" (car new-acl)
1342 ;;; Internal functions
1345 ;; This is confusing.
1347 ;; mark => read, tick, draft, reply etc
1348 ;; flag => "\\Seen", "\\Flagged", "\\Draft", "gnus-expire" etc
1349 ;; predicate => "SEEN", "FLAGGED", "DRAFT", "KEYWORD gnus-expire" etc
1351 ;; Mark should not really contain 'read since it's not a "mark" in the Gnus
1352 ;; world, but we cheat. Mark == gnus-article-mark-lists + '(read . read).
1355 (defconst nnimap-mark-to-predicate-alist
1357 (lambda (pair) ; cdr is the mark
1358 (or (assoc (cdr pair)
1363 (reply . "ANSWERED")))
1365 (format "KEYWORD gnus-%s" (symbol-name (cdr pair))))))
1366 (cons '(read . read) gnus-article-mark-lists)))
1368 (defun nnimap-mark-to-predicate (pred)
1369 "Convert a Gnus mark (a symbol such as read, tick, expire) to a IMAP predicate.
1370 This is a string such as \"SEEN\", \"FLAGGED\", \"KEYWORD gnus-expire\",
1371 to be used within a IMAP SEARCH query."
1372 (cdr (assq pred nnimap-mark-to-predicate-alist)))
1374 (defconst nnimap-mark-to-flag-alist
1377 (or (assoc (cdr pair)
1379 (tick . "\\Flagged")
1381 (recent . "\\Recent")
1382 (reply . "\\Answered")))
1384 (format "gnus-%s" (symbol-name (cdr pair))))))
1385 (cons '(read . read) gnus-article-mark-lists)))
1387 (defun nnimap-mark-to-flag-1 (preds)
1388 (if (and (not (null preds)) (listp preds))
1389 (cons (nnimap-mark-to-flag (car preds))
1390 (nnimap-mark-to-flag (cdr preds)))
1391 (cdr (assoc preds nnimap-mark-to-flag-alist))))
1393 (defun nnimap-mark-to-flag (preds &optional always-list make-string)
1394 "Convert a Gnus mark (a symbol such as read, tick, expire) to a IMAP flag.
1395 This is a string such as \"\\Seen\", \"\\Flagged\", \"gnus-expire\", to
1396 be used in a STORE FLAGS command."
1397 (let ((result (nnimap-mark-to-flag-1 preds)))
1398 (setq result (if (and (or make-string always-list)
1399 (not (listp result)))
1403 (mapconcat (lambda (flag)
1405 (mapconcat 'identity flag " ")
1410 (defun nnimap-mark-permanent-p (mark &optional group)
1411 "Return t iff MARK can be permanently (between IMAP sessions) saved on articles, in GROUP."
1412 (imap-message-flag-permanent-p (nnimap-mark-to-flag mark)))
1416 (buffer-disable-undo (get-buffer-create nnimap-debug))
1417 (mapcar (lambda (f) (trace-function-background f nnimap-debug))
1419 nnimap-possibly-change-server
1420 nnimap-verify-uidvalidity
1421 nnimap-find-minmax-uid
1422 nnimap-before-find-minmax-bugworkaround
1423 nnimap-possibly-change-group
1424 ;;nnimap-replace-whitespace
1425 nnimap-retrieve-headers-progress
1426 nnimap-retrieve-which-headers
1427 nnimap-group-overview-filename
1428 nnimap-retrieve-headers-from-file
1429 nnimap-retrieve-headers-from-server
1430 nnimap-retrieve-headers
1431 nnimap-open-connection
1433 nnimap-server-opened
1435 nnimap-request-close
1436 nnimap-status-message
1438 nnimap-request-article-part
1439 nnimap-request-article
1442 nnimap-request-group
1444 nnimap-pattern-to-list-arguments
1447 nnimap-retrieve-groups
1448 nnimap-request-update-info-internal
1450 nnimap-request-set-mark
1451 nnimap-split-to-groups
1452 nnimap-split-find-rule
1453 nnimap-split-find-inbox
1454 nnimap-split-articles
1456 nnimap-request-newgroups
1457 nnimap-request-create-group
1458 nnimap-time-substract
1459 nnimap-date-days-ago
1460 nnimap-request-expire-articles-progress
1461 nnimap-request-expire-articles
1462 nnimap-request-move-article
1463 nnimap-request-accept-article
1464 nnimap-request-delete-group
1465 nnimap-request-rename-group
1466 gnus-group-nnimap-expunge
1467 gnus-group-nnimap-edit-acl
1468 gnus-group-nnimap-edit-acl-done
1469 nnimap-group-mode-hook
1470 nnimap-mark-to-predicate
1471 nnimap-mark-to-flag-1
1473 nnimap-mark-permanent-p
1478 ;;; nnimap.el ends here