1 ;;; spam.el --- Identifying spam
3 ;; Copyright (C) 2002-2017 Free Software Foundation, Inc.
5 ;; Author: Lars Magne Ingebrigtsen <larsi@gnus.org>
6 ;; Maintainer: Ted Zlatanov <tzz@lifelogs.com>
7 ;; Keywords: network, spam, mail, bogofilter, BBDB, dspam, dig, whitelist, blacklist, gmane, hashcash, spamassassin, bsfilter, ifile, stat, crm114, spamoracle
9 ;; This file is part of GNU Emacs.
11 ;; GNU Emacs is free software: you can redistribute it and/or modify
12 ;; it under the terms of the GNU General Public License as published by
13 ;; the Free Software Foundation, either version 3 of the License, or
14 ;; (at your option) any later version.
16 ;; GNU Emacs is distributed in the hope that it will be useful,
17 ;; but WITHOUT ANY WARRANTY; without even the implied warranty of
18 ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
19 ;; GNU General Public License for more details.
21 ;; You should have received a copy of the GNU General Public License
22 ;; along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>.
26 ;;; This module addresses a few aspects of spam control under Gnus. Page
27 ;;; breaks are used for grouping declarations and documentation relating to
28 ;;; each particular aspect.
30 ;;; The integration with Gnus is not yet complete. See various `FIXME'
31 ;;; comments, below, for supplementary explanations or discussions.
33 ;;; Several TODO items are marked as such
35 ;; TODO: cross-server splitting, remote processing, training through files
39 ;;{{{ compilation directives and autoloads/requires
41 (eval-when-compile (require 'cl
))
43 (require 'message
) ;for the message-fetch-field functions
45 (require 'gnus-uu
) ; because of key prefix issues
46 ;;; for the definitions of group content classification and spam processors
49 (eval-when-compile (require 'hashcash
))
51 ;; for nnimap-split-download-body-default
52 (eval-when-compile (require 'nnimap
))
55 (autoload 'query-dig
"dig")
57 ;; autoload spam-report
58 (autoload 'spam-report-gmane
"spam-report")
59 (autoload 'spam-report-gmane-spam
"spam-report")
60 (autoload 'spam-report-gmane-ham
"spam-report")
61 (autoload 'spam-report-resend
"spam-report")
63 ;; autoload gnus-registry
64 (autoload 'gnus-registry-group-count
"gnus-registry")
65 (autoload 'gnus-registry-get-id-key
"gnus-registry")
66 (autoload 'gnus-registry-set-id-key
"gnus-registry")
67 (autoload 'gnus-registry-handle-action
"gnus-registry")
70 (autoload 'dns-query
"dns")
74 ;;{{{ Main parameters.
75 (defvar spam-backends nil
76 "List of spam.el backends with all the pertinent data.
77 Populated by `spam-install-backend-super'.")
85 (defcustom spam-summary-exit-behavior
'default
86 "Exit behavior at the time of summary exit.
87 Note that setting the `spam-use-move' or `spam-use-copy' backends on
88 a group through group/topic parameters overrides this mechanism."
91 :tag
"Move spam out of all groups and ham out of spam groups"
94 :tag
"Move spam out of all groups and ham out of all groups"
97 :tag
"Never move spam or ham out of any groups"
101 (defcustom spam-directory
(nnheader-concat gnus-directory
"spam/")
102 "Directory for spam whitelists and blacklists."
106 (defcustom spam-mark-new-messages-in-spam-group-as-spam t
107 "Whether new messages in a spam group should get the spam-mark."
109 ;; :version "22.1" ;; Gnus 5.10.8 / No Gnus 0.3
112 (defcustom spam-log-to-registry nil
113 "Whether spam/ham processing should be logged in the registry."
117 (defcustom spam-split-symbolic-return nil
118 "Whether `spam-split' should work with symbols or group names."
122 (defcustom spam-split-symbolic-return-positive nil
123 "Whether `spam-split' should ALWAYS work with symbols or group names.
124 Do not set this if you use `spam-split' in a fancy split method."
128 (defcustom spam-mark-only-unseen-as-spam t
129 "Whether only unseen articles should be marked as spam in spam groups.
130 When nil, all unread articles in a spam group are marked as
131 spam. Set this if you want to leave an article unread in a spam group
132 without losing it to the automatic spam-marking process."
136 (defcustom spam-mark-ham-unread-before-move-from-spam-group nil
137 "Whether ham should be marked unread before it's moved.
138 The article is moved out of a spam group according to `ham-process-destination'.
139 This variable is an official entry in the international Longest Variable Name
144 (defcustom spam-disable-spam-split-during-ham-respool nil
145 "Whether `spam-split' should be ignored while resplitting ham.
146 This is useful to prevent ham from ending up in the same spam
147 group after the resplit. Don't set this to t if you have `spam-split' as the
148 last rule in your split configuration."
152 (defcustom spam-autodetect-recheck-messages nil
153 "Should spam.el recheck all messages when autodetecting?
154 Normally this is nil, so only unseen messages will be checked."
158 (defcustom spam-whitelist
(expand-file-name "whitelist" spam-directory
)
159 "The location of the whitelist.
160 The file format is one regular expression per line.
161 The regular expression is matched against the address."
165 (defcustom spam-blacklist
(expand-file-name "blacklist" spam-directory
)
166 "The location of the blacklist.
167 The file format is one regular expression per line.
168 The regular expression is matched against the address."
172 (defcustom spam-use-dig t
173 "Whether `query-dig' should be used instead of `dns-query'."
177 (defcustom spam-use-gmane-xref nil
178 "Whether the Gmane spam xref should be used by `spam-split'."
182 (defcustom spam-use-blacklist nil
183 "Whether the blacklist should be used by `spam-split'."
187 (defcustom spam-blacklist-ignored-regexes nil
188 "Regular expressions that the blacklist should ignore."
189 :type
'(repeat (regexp :tag
"Regular expression to ignore when blacklisting"))
192 (defcustom spam-use-whitelist nil
193 "Whether the whitelist should be used by `spam-split'."
197 (defcustom spam-use-whitelist-exclusive nil
198 "Whether whitelist-exclusive should be used by `spam-split'.
199 Exclusive whitelisting means that all messages from senders not in the whitelist
200 are considered spam."
204 (defcustom spam-use-blackholes nil
205 "Whether blackholes should be used by `spam-split'."
209 (defcustom spam-use-hashcash nil
210 "Whether hashcash payments should be detected by `spam-split'."
214 (defcustom spam-use-regex-headers nil
215 "Whether a header regular expression match should be used by `spam-split'.
216 Also see the variables `spam-regex-headers-spam' and `spam-regex-headers-ham'."
220 (defcustom spam-use-regex-body nil
221 "Whether a body regular expression match should be used by `spam-split'.
222 Also see the variables `spam-regex-body-spam' and `spam-regex-body-ham'."
226 (defcustom spam-use-bogofilter-headers nil
227 "Whether bogofilter headers should be used by `spam-split'.
228 Enable this if you pre-process messages with Bogofilter BEFORE Gnus sees them."
232 (defcustom spam-use-bogofilter nil
233 "Whether bogofilter should be invoked by `spam-split'.
234 Enable this if you want Gnus to invoke Bogofilter on new messages."
238 (defcustom spam-use-bsfilter-headers nil
239 "Whether bsfilter headers should be used by `spam-split'.
240 Enable this if you pre-process messages with Bsfilter BEFORE Gnus sees them."
244 (defcustom spam-use-bsfilter nil
245 "Whether bsfilter should be invoked by `spam-split'.
246 Enable this if you want Gnus to invoke Bsfilter on new messages."
250 (defcustom spam-use-BBDB nil
251 "Whether BBDB should be used by `spam-split'."
255 (defcustom spam-use-BBDB-exclusive nil
256 "Whether BBDB-exclusive should be used by `spam-split'.
257 Exclusive BBDB means that all messages from senders not in the BBDB are
262 (defcustom spam-use-ifile nil
263 "Whether ifile should be used by `spam-split'."
267 (defcustom spam-use-stat nil
268 "Whether `spam-stat' should be used by `spam-split'."
272 (defcustom spam-use-spamoracle nil
273 "Whether spamoracle should be used by `spam-split'."
277 (defcustom spam-use-spamassassin nil
278 "Whether spamassassin should be invoked by `spam-split'.
279 Enable this if you want Gnus to invoke SpamAssassin on new messages."
283 (defcustom spam-use-spamassassin-headers nil
284 "Whether spamassassin headers should be checked by `spam-split'.
285 Enable this if you pre-process messages with SpamAssassin BEFORE Gnus sees
290 (defcustom spam-use-crm114 nil
291 "Whether the CRM114 Mailfilter should be used by `spam-split'."
295 (defcustom spam-install-hooks
(or
300 spam-use-whitelist-exclusive
303 spam-use-regex-headers
306 spam-use-bogofilter-headers
307 spam-use-spamassassin
308 spam-use-spamassassin-headers
310 spam-use-bsfilter-headers
312 spam-use-BBDB-exclusive
317 "Whether the spam hooks should be installed.
318 Default to t if one of the spam-use-* variables is set."
322 (defcustom spam-split-group
"spam"
323 "Group name where incoming spam should be put by `spam-split'."
327 ;;; TODO: deprecate this variable, it's confusing since it's a list of strings,
328 ;;; not regular expressions
329 (defcustom spam-junk-mailgroups
(cons
331 '("mail.junk" "poste.pourriel"))
332 "Mailgroups with spam contents.
333 All unmarked article in such group receive the spam mark on group entry."
334 :type
'(repeat (string :tag
"Group"))
338 (defcustom spam-gmane-xref-spam-group
"gmane.spam.detected"
339 "The group where spam xrefs can be found on Gmane.
340 Only meaningful if you enable `spam-use-gmane-xref'."
344 (defcustom spam-blackhole-servers
'("bl.spamcop.net" "relays.ordb.org"
345 "dev.null.dk" "relays.visi.com")
346 "List of blackhole servers.
347 Only meaningful if you enable `spam-use-blackholes'."
348 :type
'(repeat (string :tag
"Server"))
351 (defcustom spam-blackhole-good-server-regex nil
352 "String matching IP addresses that should not be checked in the blackholes.
353 Only meaningful if you enable `spam-use-blackholes'."
354 :type
'(radio (const nil
) regexp
)
358 '((((class color
) (type tty
) (background dark
))
359 (:foreground
"gray80" :background
"gray50"))
360 (((class color
) (type tty
) (background light
))
361 (:foreground
"gray50" :background
"gray80"))
362 (((class color
) (background dark
))
363 (:foreground
"ivory2"))
364 (((class color
) (background light
))
365 (:foreground
"ivory4"))
366 (t :inverse-video t
))
367 "Face for spam-marked articles."
369 ;; backward-compatibility alias
370 (put 'spam-face
'face-alias
'spam
)
371 (put 'spam-face
'obsolete-face
"22.1")
373 (defcustom spam-face
'spam
374 "Face for spam-marked articles."
378 (defcustom spam-regex-headers-spam
'("^X-Spam-Flag: YES")
379 "Regular expression for positive header spam matches.
380 Only meaningful if you enable `spam-use-regex-headers'."
381 :type
'(repeat (regexp :tag
"Regular expression to match spam header"))
384 (defcustom spam-regex-headers-ham
'("^X-Spam-Flag: NO")
385 "Regular expression for positive header ham matches.
386 Only meaningful if you enable `spam-use-regex-headers'."
387 :type
'(repeat (regexp :tag
"Regular expression to match ham header"))
390 (defcustom spam-regex-body-spam
'()
391 "Regular expression for positive body spam matches.
392 Only meaningful if you enable `spam-use-regex-body'."
393 :type
'(repeat (regexp :tag
"Regular expression to match spam body"))
396 (defcustom spam-regex-body-ham
'()
397 "Regular expression for positive body ham matches.
398 Only meaningful if you enable `spam-use-regex-body'."
399 :type
'(repeat (regexp :tag
"Regular expression to match ham body"))
402 (defcustom spam-summary-score-preferred-header nil
403 "Preferred header to use for `spam-summary-score'."
404 :type
'(choice :tag
"Header name"
405 (symbol :tag
"SpamAssassin etc" X-Spam-Status
)
406 (symbol :tag
"Bogofilter" X-Bogosity
)
407 (const :tag
"No preference, take best guess." nil
))
410 (defgroup spam-ifile nil
411 "Spam ifile configuration."
414 (make-obsolete-variable 'spam-ifile-path
'spam-ifile-program
415 "Gnus 5.10.9 (Emacs 22.1)")
416 (defcustom spam-ifile-program
(executable-find "ifile")
417 "Name of the ifile program."
418 :type
'(choice (file :tag
"Location of ifile")
419 (const :tag
"ifile is not installed"))
422 (make-obsolete-variable 'spam-ifile-database-path
'spam-ifile-database
423 "Gnus 5.10.9 (Emacs 22.1)")
424 (defcustom spam-ifile-database nil
425 "File name of the ifile database."
426 :type
'(choice (file :tag
"Location of the ifile database")
427 (const :tag
"Use the default"))
430 (defcustom spam-ifile-spam-category
"spam"
431 "Name of the spam ifile category."
435 (defcustom spam-ifile-ham-category nil
436 "Name of the ham ifile category.
437 If nil, the current group name will be used."
438 :type
'(choice (string :tag
"Use a fixed category")
439 (const :tag
"Use the current group name"))
442 (defcustom spam-ifile-all-categories nil
443 "Whether the ifile check will return all categories, or just spam.
444 Set this to t if you want to use the `spam-split' invocation of ifile as
445 your main source of newsgroup names."
449 (defgroup spam-bogofilter nil
450 "Spam bogofilter configuration."
453 (make-obsolete-variable 'spam-bogofilter-path
'spam-bogofilter-program
454 "Gnus 5.10.9 (Emacs 22.1)")
455 (defcustom spam-bogofilter-program
(executable-find "bogofilter")
456 "Name of the Bogofilter program."
457 :type
'(choice (file :tag
"Location of bogofilter")
458 (const :tag
"Bogofilter is not installed"))
459 :group
'spam-bogofilter
)
461 (defvar spam-bogofilter-valid
'unknown
"Is the bogofilter version valid?")
463 (defcustom spam-bogofilter-header
"X-Bogosity"
464 "The header that Bogofilter inserts in messages."
466 :group
'spam-bogofilter
)
468 (defcustom spam-bogofilter-spam-switch
"-s"
469 "The switch that Bogofilter uses to register spam messages."
471 :group
'spam-bogofilter
)
473 (defcustom spam-bogofilter-ham-switch
"-n"
474 "The switch that Bogofilter uses to register ham messages."
476 :group
'spam-bogofilter
)
478 (defcustom spam-bogofilter-spam-strong-switch
"-S"
479 "The switch that Bogofilter uses to unregister ham messages."
481 :group
'spam-bogofilter
)
483 (defcustom spam-bogofilter-ham-strong-switch
"-N"
484 "The switch that Bogofilter uses to unregister spam messages."
486 :group
'spam-bogofilter
)
488 (defcustom spam-bogofilter-bogosity-positive-spam-header
"^\\(Yes\\|Spam\\)"
489 "The regex on `spam-bogofilter-header' for positive spam identification."
491 :group
'spam-bogofilter
)
493 (defcustom spam-bogofilter-database-directory nil
494 "Location of the Bogofilter database.
495 When nil, use the default location."
496 :type
'(choice (directory
497 :tag
"Location of the Bogofilter database directory")
498 (const :tag
"Use the default"))
499 :group
'spam-bogofilter
)
501 (defgroup spam-bsfilter nil
502 "Spam bsfilter configuration."
505 (make-obsolete-variable 'spam-bsfilter-path
'spam-bsfilter-program
506 "Gnus 5.10.9 (Emacs 22.1)")
507 (defcustom spam-bsfilter-program
(executable-find "bsfilter")
508 "Name of the Bsfilter program."
509 :type
'(choice (file :tag
"Location of bsfilter")
510 (const :tag
"Bsfilter is not installed"))
511 :group
'spam-bsfilter
)
513 (defcustom spam-bsfilter-header
"X-Spam-Flag"
514 "The header inserted by Bsfilter to flag spam."
516 :group
'spam-bsfilter
)
518 (defcustom spam-bsfilter-probability-header
"X-Spam-Probability"
519 "The header that Bsfilter inserts in messages."
521 :group
'spam-bsfilter
)
523 (defcustom spam-bsfilter-spam-switch
"--add-spam"
524 "The switch that Bsfilter uses to register spam messages."
526 :group
'spam-bsfilter
)
528 (defcustom spam-bsfilter-ham-switch
"--add-clean"
529 "The switch that Bsfilter uses to register ham messages."
531 :group
'spam-bsfilter
)
533 (defcustom spam-bsfilter-spam-strong-switch
"--sub-spam"
534 "The switch that Bsfilter uses to unregister ham messages."
536 :group
'spam-bsfilter
)
538 (defcustom spam-bsfilter-ham-strong-switch
"--sub-clean"
539 "The switch that Bsfilter uses to unregister spam messages."
541 :group
'spam-bsfilter
)
543 (defcustom spam-bsfilter-database-directory nil
544 "Directory path of the Bsfilter databases."
545 :type
'(choice (directory
546 :tag
"Location of the Bsfilter database directory")
547 (const :tag
"Use the default"))
548 :group
'spam-bsfilter
)
550 (defgroup spam-spamoracle nil
551 "Spam spamoracle configuration."
554 (defcustom spam-spamoracle-database nil
555 "Location of spamoracle database file.
556 When nil, use the default spamoracle database."
557 :type
'(choice (directory :tag
"Location of spamoracle database file.")
558 (const :tag
"Use the default"))
559 :group
'spam-spamoracle
)
561 (defcustom spam-spamoracle-binary
(executable-find "spamoracle")
562 "Location of the spamoracle binary."
563 :type
'(choice (directory :tag
"Location of the spamoracle binary")
564 (const :tag
"Use the default"))
565 :group
'spam-spamoracle
)
567 (defgroup spam-spamassassin nil
568 "Spam SpamAssassin configuration."
571 (make-obsolete-variable 'spam-spamassassin-path
572 'spam-spamassassin-program
"Gnus 5.10.9 (Emacs 22.1)")
573 (defcustom spam-assassin-program
(executable-find "spamassassin")
574 "Name of the spamassassin program.
575 Hint: set this to \"spamc\" if you have spamd running. See the spamc and
576 spamd man pages for more information on these programs."
577 :type
'(choice (file :tag
"Location of spamc")
578 (const :tag
"spamassassin is not installed"))
579 :group
'spam-spamassassin
)
581 (defcustom spam-spamassassin-arguments
()
582 "Arguments to pass to the spamassassin executable.
583 This must be a list. For example, `(\"-C\" \"configfile\")'."
584 :type
'(restricted-sexp :match-alternatives
(listp))
585 :group
'spam-spamassassin
)
587 (defcustom spam-spamassassin-spam-flag-header
"X-Spam-Flag"
588 "The header inserted by SpamAssassin to flag spam."
590 :group
'spam-spamassassin
)
592 (defcustom spam-spamassassin-positive-spam-flag-header
"YES"
593 "The regex on `spam-spamassassin-spam-flag-header' for positive spam
596 :group
'spam-spamassassin
)
598 (defcustom spam-spamassassin-spam-status-header
"X-Spam-Status"
599 "The header inserted by SpamAssassin, giving extended scoring information"
601 :group
'spam-spamassassin
)
603 (make-obsolete-variable 'spam-sa-learn-path
'spam-sa-learn-program
604 "Gnus 5.10.9 (Emacs 22.1)")
605 (defcustom spam-sa-learn-program
(executable-find "sa-learn")
606 "Name of the sa-learn program."
607 :type
'(choice (file :tag
"Location of spamassassin")
608 (const :tag
"spamassassin is not installed"))
609 :group
'spam-spamassassin
)
611 (defcustom spam-sa-learn-rebuild t
612 "Whether sa-learn should rebuild the database every time it is called
613 Enable this if you want sa-learn to rebuild the database automatically. Doing
614 this will slightly increase the running time of the spam registration process.
615 If you choose not to do this, you will have to run \"sa-learn --rebuild\" in
616 order for SpamAssassin to recognize the new registered spam."
618 :group
'spam-spamassassin
)
620 (defcustom spam-sa-learn-spam-switch
"--spam"
621 "The switch that sa-learn uses to register spam messages."
623 :group
'spam-spamassassin
)
625 (defcustom spam-sa-learn-ham-switch
"--ham"
626 "The switch that sa-learn uses to register ham messages."
628 :group
'spam-spamassassin
)
630 (defcustom spam-sa-learn-unregister-switch
"--forget"
631 "The switch that sa-learn uses to unregister messages messages."
633 :group
'spam-spamassassin
)
635 (defgroup spam-crm114 nil
636 "Spam CRM114 Mailfilter configuration."
639 (defcustom spam-crm114-program
(executable-find "mailfilter.crm")
640 "File path of the CRM114 Mailfilter executable program."
641 :type
'(choice (file :tag
"Location of CRM114 Mailfilter")
642 (const :tag
"CRM114 Mailfilter is not installed"))
645 (defcustom spam-crm114-header
"X-CRM114-Status"
646 "The header that CRM114 Mailfilter inserts in messages."
650 (defcustom spam-crm114-spam-switch
"--learnspam"
651 "The switch that CRM114 Mailfilter uses to register spam messages."
655 (defcustom spam-crm114-ham-switch
"--learnnonspam"
656 "The switch that CRM114 Mailfilter uses to register ham messages."
660 (defcustom spam-crm114-spam-strong-switch
"--unlearn"
661 "The switch that CRM114 Mailfilter uses to unregister ham messages."
665 (defcustom spam-crm114-ham-strong-switch
"--unlearn"
666 "The switch that CRM114 Mailfilter uses to unregister spam messages."
670 (defcustom spam-crm114-positive-spam-header
"^SPAM"
671 "The regex on `spam-crm114-header' for positive spam identification."
675 (defcustom spam-crm114-database-directory nil
676 "Directory path of the CRM114 Mailfilter databases."
677 :type
'(choice (directory
678 :tag
"Location of the CRM114 Mailfilter database directory")
679 (const :tag
"Use the default"))
682 ;;; Key bindings for spam control.
684 (gnus-define-keys gnus-summary-mode-map
685 "St" spam-generic-score
686 "Sx" gnus-summary-mark-as-spam
687 "Mst" spam-generic-score
688 "Msx" gnus-summary-mark-as-spam
689 "\M-d" gnus-summary-mark-as-spam
690 "$" gnus-summary-mark-as-spam
)
692 (defvar spam-cache-lookups t
693 "Whether spam.el will try to cache lookups using `spam-caches'.")
695 (defvar spam-caches
(make-hash-table
698 "Cache of spam detection entries.")
700 (defvar spam-old-articles nil
701 "List of old ham and spam articles, generated when a group is entered.")
703 (defvar spam-split-disabled nil
704 "If non-nil, `spam-split' is disabled, and always returns nil.")
706 (defvar spam-split-last-successful-check nil
708 `spam-split' will set this to nil or a spam-use-XYZ check if it
711 ;; internal variables for backends
712 ;; TODO: find a way to create these on the fly in spam-install-backend-super
713 (defvar spam-use-copy nil
)
714 (defvar spam-use-move nil
)
715 (defvar spam-use-gmane nil
)
716 (defvar spam-use-resend nil
)
720 ;;{{{ convenience functions
722 (defun spam-clear-cache (symbol)
723 "Clear the `spam-caches' entry for a check."
724 (remhash symbol spam-caches
))
726 (defun spam-xor (a b
)
728 (and (or a b
) (not (and a b
))))
730 (defun spam-set-difference (list1 list2
)
731 "Return a set difference of LIST1 and LIST2.
732 When either list is nil, the other is returned."
733 (if (and list1 list2
)
734 ;; we have two non-nil lists
736 (dolist (item (append list1 list2
))
737 (when (and (memq item list1
) (memq item list2
))
738 (setq list1
(delq item list1
))
739 (setq list2
(delq item list2
))))
740 (append list1 list2
))
741 ;; if either of the lists was nil, return the other one
742 (if list1 list1 list2
)))
744 (defun spam-group-ham-mark-p (group mark
&optional spam
)
745 "Checks if MARK is considered a ham mark in GROUP."
746 (when (stringp group
)
747 (let* ((marks (spam-group-ham-marks group spam
))
748 (marks (if (symbolp mark
)
750 (mapcar 'symbol-value marks
))))
753 (defun spam-group-spam-mark-p (group mark
)
754 "Checks if MARK is considered a spam mark in GROUP."
755 (spam-group-ham-mark-p group mark t
))
757 (defun spam-group-ham-marks (group &optional spam
)
758 "In GROUP, get all the ham marks."
759 (when (stringp group
)
760 (let* ((marks (if spam
761 (gnus-parameter-spam-marks group
)
762 (gnus-parameter-ham-marks group
)))
764 (marks (if (listp (car marks
)) (car marks
) marks
)))
767 (defun spam-group-spam-marks (group)
768 "In GROUP, get all the spam marks."
769 (spam-group-ham-marks group t
))
771 (defun spam-group-spam-contents-p (group)
772 "Is GROUP a spam group?"
773 (if (and (stringp group
) (< 0 (length group
)))
774 (or (member group spam-junk-mailgroups
)
775 (memq 'gnus-group-spam-classification-spam
776 (gnus-parameter-spam-contents group
)))
779 (defun spam-group-ham-contents-p (group)
780 "Is GROUP a ham group?"
782 (memq 'gnus-group-spam-classification-ham
783 (gnus-parameter-spam-contents group
))
786 (defun spam-classifications ()
787 "Return list of valid classifications"
790 (defun spam-classification-valid-p (classification)
791 "Is CLASSIFICATION a valid spam/ham classification?"
792 (memq classification
(spam-classifications)))
794 (defun spam-backend-properties ()
795 "Return list of valid classifications."
796 '(statistical mover check hrf srf huf suf
))
798 (defun spam-backend-property-valid-p (property)
799 "Is PROPERTY a valid backend property?"
800 (memq property
(spam-backend-properties)))
802 (defun spam-backend-function-type-valid-p (type)
803 (or (eq type
'registration
)
804 (eq type
'unregistration
)))
806 (defun spam-process-type-valid-p (process-type)
807 (or (eq process-type
'incoming
)
808 (eq process-type
'process
)))
810 (defun spam-list-articles (articles classification
)
811 (let ((mark-check (if (eq classification
'spam
)
812 'spam-group-spam-mark-p
813 'spam-group-ham-mark-p
))
814 alist mark-cache-yes mark-cache-no
)
815 (dolist (article articles
)
816 (let ((mark (gnus-summary-article-mark article
)))
817 (unless (or (memq mark mark-cache-yes
)
818 (memq mark mark-cache-no
))
819 (if (funcall mark-check
822 (push mark mark-cache-yes
)
823 (push mark mark-cache-no
)))
824 (when (memq mark mark-cache-yes
)
825 (push article alist
))))
830 ;;{{{ backend installation functions and procedures
832 (defun spam-install-backend-super (backend &rest properties
)
833 "Install BACKEND for spam.el.
834 Accepts incoming CHECK, ham registration function HRF, spam
835 registration function SRF, ham unregistration function HUF, spam
836 unregistration function SUF, and an indication whether the
837 backend is STATISTICAL."
838 (setq spam-backends
(add-to-list 'spam-backends backend
))
840 (let ((property (pop properties
))
841 (value (pop properties
)))
842 (if (spam-backend-property-valid-p property
)
843 (put backend property value
)
846 "spam-install-backend-super got an invalid property %s"
849 (defun spam-backend-list (&optional type
)
850 "Return a list of all the backend symbols, constrained by TYPE.
851 When TYPE is 'non-mover, only non-mover backends are returned.
852 When TYPE is 'mover, only mover backends are returned."
854 (dolist (backend spam-backends
)
856 (null type
) ;either no type was requested
857 ;; or the type is 'mover and the backend is a mover
860 (spam-backend-mover-p backend
))
861 ;; or the type is 'non-mover and the backend is not a mover
864 (not (spam-backend-mover-p backend
))))
865 (push backend list
)))
868 (defun spam-backend-check (backend)
869 "Get the check function for BACKEND.
870 Each individual check may return nil, t, or a mailgroup name.
871 The value nil means that the check does not yield a decision, and
872 so, that further checks are needed. The value t means that the
873 message is definitely not spam, and that further spam checks
874 should be inhibited. Otherwise, a mailgroup name or the symbol
875 'spam (depending on `spam-split-symbolic-return') is returned where
876 the mail should go, and further checks are also inhibited. The
877 usual mailgroup name is the value of `spam-split-group', meaning
878 that the message is definitely a spam."
879 (get backend
'check
))
881 (defun spam-backend-valid-p (backend)
883 (member backend
(spam-backend-list)))
885 (defun spam-backend-info (backend)
886 "Return information about BACKEND."
887 (if (spam-backend-valid-p backend
)
889 (setq info
(format "Backend %s has the following properties:\n"
891 (dolist (property (spam-backend-properties))
892 (setq info
(format "%s%s=%s\n"
895 (get backend property
))))
897 (gnus-error 5 "spam-backend-info was asked about an invalid backend %s"
900 (defun spam-backend-function (backend classification type
)
901 "Get the BACKEND function for CLASSIFICATION and TYPE.
902 TYPE is 'registration or 'unregistration.
903 CLASSIFICATION is 'ham or 'spam."
905 (spam-classification-valid-p classification
)
906 (spam-backend-function-type-valid-p type
))
909 (format "spam-backend-%s-%s-function"
912 (funcall retrieval backend
))
915 "%s was passed invalid backend %s, classification %s, or type %s"
916 "spam-backend-function"
921 (defun spam-backend-article-list-property (classification
922 &optional unregister
)
923 "Property name of article list with CLASSIFICATION and UNREGISTER."
924 (let* ((r (if unregister
"unregister" "register"))
925 (prop (format "%s-%s" classification r
)))
928 (defun spam-backend-get-article-todo-list (backend
930 &optional unregister
)
931 "Get the articles to be processed for BACKEND and CLASSIFICATION.
932 With UNREGISTER, get articles to be unregistered.
933 This is a temporary storage function - nothing here persists."
936 (intern (spam-backend-article-list-property classification unregister
))))
938 (defun spam-backend-put-article-todo-list (backend classification list
939 &optional unregister
)
940 "Set the LIST of articles to be processed for BACKEND and CLASSIFICATION.
941 With UNREGISTER, set articles to be unregistered.
942 This is a temporary storage function - nothing here persists."
945 (intern (spam-backend-article-list-property classification unregister
))
948 (defun spam-backend-ham-registration-function (backend)
949 "Get the ham registration function for BACKEND."
952 (defun spam-backend-spam-registration-function (backend)
953 "Get the spam registration function for BACKEND."
956 (defun spam-backend-ham-unregistration-function (backend)
957 "Get the ham unregistration function for BACKEND."
960 (defun spam-backend-spam-unregistration-function (backend)
961 "Get the spam unregistration function for BACKEND."
964 (defun spam-backend-statistical-p (backend)
965 "Is BACKEND statistical?"
966 (get backend
'statistical
))
968 (defun spam-backend-mover-p (backend)
969 "Is BACKEND a mover?"
970 (get backend
'mover
))
972 (defun spam-install-backend-alias (backend alias
)
973 "Add ALIAS to an existing BACKEND.
974 The previous backend settings for ALIAS are erased."
976 ;; install alias with no properties at first
977 (spam-install-backend-super alias
)
979 (dolist (property (spam-backend-properties))
980 (put alias property
(get backend property
))))
982 (defun spam-install-checkonly-backend (backend check
)
983 "Install a BACKEND than can only CHECK for spam."
984 (spam-install-backend-super backend
'check check
))
986 (defun spam-install-mover-backend (backend hrf srf huf suf
)
987 "Install a BACKEND than can move articles at summary exit.
988 Accepts ham registration function HRF, spam registration function
989 SRF, ham unregistration function HUF, spam unregistration
990 function SUF. The backend has no incoming check and can't be
992 (spam-install-backend-super
994 'hrf hrf
'srf srf
'huf huf
'suf suf
'mover t
))
996 (defun spam-install-nocheck-backend (backend hrf srf huf suf
)
997 "Install a BACKEND than has no check.
998 Accepts ham registration function HRF, spam registration function
999 SRF, ham unregistration function HUF, spam unregistration
1000 function SUF. The backend has no incoming check and can't be
1001 statistical (it could be, but in practice that doesn't happen)."
1002 (spam-install-backend-super
1004 'hrf hrf
'srf srf
'huf huf
'suf suf
))
1006 (defun spam-install-backend (backend check hrf srf huf suf
)
1008 Accepts incoming CHECK, ham registration function HRF, spam
1009 registration function SRF, ham unregistration function HUF, spam
1010 unregistration function SUF. The backend won't be
1011 statistical (use `spam-install-statistical-backend' for that)."
1012 (spam-install-backend-super
1014 'check check
'hrf hrf
'srf srf
'huf huf
'suf suf
))
1016 (defun spam-install-statistical-backend (backend check hrf srf huf suf
)
1018 Accepts incoming CHECK, ham registration function HRF, spam
1019 registration function SRF, ham unregistration function HUF, spam
1020 unregistration function SUF. The backend will be
1021 statistical (use `spam-install-backend' for non-statistical
1023 (spam-install-backend-super
1025 'check check
'statistical t
'hrf hrf
'srf srf
'huf huf
'suf suf
))
1027 (defun spam-install-statistical-checkonly-backend (backend check
)
1028 "Install a statistical BACKEND than can only CHECK for spam."
1029 (spam-install-backend-super
1031 'check check
'statistical t
))
1035 ;;{{{ backend installations
1036 (spam-install-checkonly-backend 'spam-use-blackholes
1037 'spam-check-blackholes
)
1039 (spam-install-checkonly-backend 'spam-use-hashcash
1040 'spam-check-hashcash
)
1042 (spam-install-checkonly-backend 'spam-use-spamassassin-headers
1043 'spam-check-spamassassin-headers
)
1045 (spam-install-checkonly-backend 'spam-use-bogofilter-headers
1046 'spam-check-bogofilter-headers
)
1048 (spam-install-checkonly-backend 'spam-use-bsfilter-headers
1049 'spam-check-bsfilter-headers
)
1051 (spam-install-checkonly-backend 'spam-use-gmane-xref
1052 'spam-check-gmane-xref
)
1054 (spam-install-checkonly-backend 'spam-use-regex-headers
1055 'spam-check-regex-headers
)
1057 (spam-install-statistical-checkonly-backend 'spam-use-regex-body
1058 'spam-check-regex-body
)
1060 ;; TODO: NOTE: spam-use-ham-copy is now obsolete, use (ham spam-use-copy)
1061 (spam-install-mover-backend 'spam-use-move
1062 'spam-move-ham-routine
1063 'spam-move-spam-routine
1067 (spam-install-nocheck-backend 'spam-use-copy
1068 'spam-copy-ham-routine
1069 'spam-copy-spam-routine
1073 (spam-install-nocheck-backend 'spam-use-gmane
1074 'spam-report-gmane-unregister-routine
1075 'spam-report-gmane-register-routine
1076 'spam-report-gmane-register-routine
1077 'spam-report-gmane-unregister-routine
)
1079 (spam-install-nocheck-backend 'spam-use-resend
1080 'spam-report-resend-register-ham-routine
1081 'spam-report-resend-register-routine
1085 (spam-install-backend 'spam-use-BBDB
1087 'spam-BBDB-register-routine
1089 'spam-BBDB-unregister-routine
1092 (spam-install-backend-alias 'spam-use-BBDB
'spam-use-BBDB-exclusive
)
1094 (spam-install-backend 'spam-use-blacklist
1095 'spam-check-blacklist
1097 'spam-blacklist-register-routine
1099 'spam-blacklist-unregister-routine
)
1101 (spam-install-backend 'spam-use-whitelist
1102 'spam-check-whitelist
1103 'spam-whitelist-register-routine
1105 'spam-whitelist-unregister-routine
1108 (spam-install-statistical-backend 'spam-use-ifile
1110 'spam-ifile-register-ham-routine
1111 'spam-ifile-register-spam-routine
1112 'spam-ifile-unregister-ham-routine
1113 'spam-ifile-unregister-spam-routine
)
1115 (spam-install-statistical-backend 'spam-use-spamoracle
1116 'spam-check-spamoracle
1117 'spam-spamoracle-learn-ham
1118 'spam-spamoracle-learn-spam
1119 'spam-spamoracle-unlearn-ham
1120 'spam-spamoracle-unlearn-spam
)
1122 (spam-install-statistical-backend 'spam-use-stat
1124 'spam-stat-register-ham-routine
1125 'spam-stat-register-spam-routine
1126 'spam-stat-unregister-ham-routine
1127 'spam-stat-unregister-spam-routine
)
1129 (spam-install-statistical-backend 'spam-use-spamassassin
1130 'spam-check-spamassassin
1131 'spam-spamassassin-register-ham-routine
1132 'spam-spamassassin-register-spam-routine
1133 'spam-spamassassin-unregister-ham-routine
1134 'spam-spamassassin-unregister-spam-routine
)
1136 (spam-install-statistical-backend 'spam-use-bogofilter
1137 'spam-check-bogofilter
1138 'spam-bogofilter-register-ham-routine
1139 'spam-bogofilter-register-spam-routine
1140 'spam-bogofilter-unregister-ham-routine
1141 'spam-bogofilter-unregister-spam-routine
)
1143 (spam-install-statistical-backend 'spam-use-bsfilter
1144 'spam-check-bsfilter
1145 'spam-bsfilter-register-ham-routine
1146 'spam-bsfilter-register-spam-routine
1147 'spam-bsfilter-unregister-ham-routine
1148 'spam-bsfilter-unregister-spam-routine
)
1150 (spam-install-statistical-backend 'spam-use-crm114
1152 'spam-crm114-register-ham-routine
1153 'spam-crm114-register-spam-routine
1154 'spam-crm114-unregister-ham-routine
1155 'spam-crm114-unregister-spam-routine
)
1158 ;;{{{ scoring and summary formatting
1159 (defun spam-necessary-extra-headers ()
1160 "Return the extra headers spam.el thinks are necessary."
1162 (when (or spam-use-spamassassin
1163 spam-use-spamassassin-headers
1164 spam-use-regex-headers
)
1165 (push 'X-Spam-Status list
))
1166 (when (or spam-use-bogofilter
1167 spam-use-regex-headers
)
1168 (push 'X-Bogosity list
))
1169 (when (or spam-use-crm114
1170 spam-use-regex-headers
)
1171 (push 'X-CRM114-Status list
))
1174 (defun spam-user-format-function-S (headers)
1177 (spam-summary-score headers spam-summary-score-preferred-header
))))
1179 (defun spam-article-sort-by-spam-status (h1 h2
)
1180 "Sort articles by score."
1182 (dolist (header (spam-necessary-extra-headers))
1183 (let ((s1 (spam-summary-score h1 header
))
1184 (s2 (spam-summary-score h2 header
)))
1186 (setq result
(< s1 s2
))
1190 (defvar spam-spamassassin-score-regexp
1191 ".*\\b\\(?:score\\|hits\\)=\\(-?[0-9.]+\\)"
1192 "Regexp matching SpamAssassin score header.
1193 The first group must match the number.")
1195 (defun spam-extra-header-to-number (header headers
)
1196 "Transform an extra HEADER to a number, using list of HEADERS.
1197 Note this has to be fast."
1198 (let ((header-content (gnus-extra-header header headers
)))
1201 ((eq header
'X-Spam-Status
)
1202 (string-to-number (replace-regexp-in-string
1203 spam-spamassassin-score-regexp
1206 ;; for CRM checking, it's probably faster to just do the string match
1207 ((string-match "( pR: \\([0-9.-]+\\)" header-content
)
1208 (- (string-to-number (match-string 1 header-content
))))
1209 ((eq header
'X-Bogosity
)
1210 (string-to-number (replace-regexp-in-string
1212 (replace-regexp-in-string
1218 (defun spam-summary-score (headers &optional specific-header
)
1219 "Score an article for the summary buffer, as fast as possible.
1220 With SPECIFIC-HEADER, returns only that header's score.
1221 Will not return a nil score."
1225 (list specific-header
)
1226 (spam-necessary-extra-headers)))
1228 (spam-extra-header-to-number header headers
))
1233 (defun spam-generic-score (&optional recheck
)
1234 "Invoke whatever scoring method we can."
1237 ((or spam-use-spamassassin spam-use-spamassassin-headers
)
1238 (spam-spamassassin-score recheck
))
1239 ((or spam-use-bsfilter spam-use-bsfilter-headers
)
1240 (spam-bsfilter-score recheck
))
1242 (spam-crm114-score))
1243 (t (spam-bogofilter-score recheck
))))
1246 ;;{{{ set up widening, processor checks
1248 ;;; set up IMAP widening if it's necessary
1249 (defun spam-setup-widening ()
1250 (when (spam-widening-needed-p)
1251 (setq nnimap-split-download-body-default t
)))
1253 (defun spam-widening-needed-p (&optional force-symbols
)
1255 (dolist (backend (spam-backend-list))
1256 (when (and (spam-backend-statistical-p backend
)
1257 (or (symbol-value backend
)
1258 (memq backend force-symbols
)))
1259 (setq found backend
)))
1262 (defvar spam-list-of-processors
1263 ;; note the nil processors are not defined in gnus.el
1264 '((gnus-group-spam-exit-processor-bogofilter spam spam-use-bogofilter
)
1265 (gnus-group-spam-exit-processor-bsfilter spam spam-use-bsfilter
)
1266 (gnus-group-spam-exit-processor-blacklist spam spam-use-blacklist
)
1267 (gnus-group-spam-exit-processor-ifile spam spam-use-ifile
)
1268 (gnus-group-spam-exit-processor-stat spam spam-use-stat
)
1269 (gnus-group-spam-exit-processor-spamoracle spam spam-use-spamoracle
)
1270 (gnus-group-spam-exit-processor-spamassassin spam spam-use-spamassassin
)
1271 (gnus-group-spam-exit-processor-report-gmane spam spam-use-gmane
) ;; Buggy?
1272 (gnus-group-ham-exit-processor-ifile ham spam-use-ifile
)
1273 (gnus-group-ham-exit-processor-bogofilter ham spam-use-bogofilter
)
1274 (gnus-group-ham-exit-processor-bsfilter ham spam-use-bsfilter
)
1275 (gnus-group-ham-exit-processor-stat ham spam-use-stat
)
1276 (gnus-group-ham-exit-processor-whitelist ham spam-use-whitelist
)
1277 (gnus-group-ham-exit-processor-BBDB ham spam-use-BBDB
)
1278 (gnus-group-ham-exit-processor-copy ham spam-use-ham-copy
)
1279 (gnus-group-ham-exit-processor-spamassassin ham spam-use-spamassassin
)
1280 (gnus-group-ham-exit-processor-spamoracle ham spam-use-spamoracle
))
1281 "The OBSOLETE `spam-list-of-processors' list.
1282 This list contains pairs associating the obsolete ham/spam exit
1283 processor variables with a classification and a spam-use-*
1284 variable. When the processor variable is nil, just the
1285 classification and spam-use-* check variable are used. This is
1286 superseded by the new spam backend code, so it's only consulted
1287 for backwards compatibility.")
1288 (make-obsolete-variable 'spam-list-of-processors nil
"22.1")
1290 (defun spam-group-processor-p (group backend
&optional classification
)
1291 "Checks if GROUP has a BACKEND with CLASSIFICATION registered.
1292 Also accepts the obsolete processors, which can be found in
1293 gnus.el and in spam-list-of-processors. In the case of mover
1294 backends, checks the setting of `spam-summary-exit-behavior' in
1295 addition to the set values for the group."
1296 (if (and (stringp group
)
1298 (let ((old-style (assq backend spam-list-of-processors
))
1299 (parameters (nth 0 (gnus-parameter-spam-process group
)))
1301 (if old-style
; old-style processor
1302 (spam-group-processor-p group
(nth 2 old-style
) (nth 1 old-style
))
1303 ;; now search for the parameter
1304 (dolist (parameter parameters
)
1305 (when (and (null found
)
1307 (eq classification
(nth 0 parameter
))
1308 (eq backend
(nth 1 parameter
)))
1311 ;; now, if the parameter was not found, do the
1312 ;; spam-summary-exit-behavior-logic for mover backends
1314 (when (spam-backend-mover-p backend
)
1318 ((eq spam-summary-exit-behavior
'move-all
) t
)
1319 ((eq spam-summary-exit-behavior
'move-none
) nil
)
1320 ((eq spam-summary-exit-behavior
'default
)
1321 (or (eq classification
'spam
) ;move spam out of all groups
1322 ;; move ham out of spam groups
1323 (and (eq classification
'ham
)
1324 (spam-group-spam-contents-p group
))))
1325 (t (gnus-error 5 "Unknown spam-summary-exit-behavior: %s"
1326 spam-summary-exit-behavior
))))))
1333 ;;{{{ Summary entry and exit processing.
1335 (defun spam-mark-junk-as-spam-routine ()
1336 ;; check the global list of group names spam-junk-mailgroups and the
1338 (when (spam-group-spam-contents-p gnus-newsgroup-name
)
1339 (gnus-message 6 "Marking %s articles as spam"
1340 (if spam-mark-only-unseen-as-spam
1343 (let ((articles (if spam-mark-only-unseen-as-spam
1344 gnus-newsgroup-unseen
1345 gnus-newsgroup-unreads
)))
1346 (if spam-mark-new-messages-in-spam-group-as-spam
1347 (dolist (article articles
)
1348 (gnus-summary-mark-article article gnus-spam-mark
))
1349 (gnus-message 9 "Did not mark new messages as spam.")))))
1351 (defun spam-summary-prepare ()
1352 (setq spam-old-articles
1353 (list (cons 'ham
(spam-list-articles gnus-newsgroup-articles
'ham
))
1354 (cons 'spam
(spam-list-articles gnus-newsgroup-articles
'spam
))))
1355 (spam-mark-junk-as-spam-routine))
1357 ;; The spam processors are invoked for any group, spam or ham or neither
1358 (defun spam-summary-prepare-exit ()
1359 (unless gnus-group-is-exiting-without-update-p
1360 (gnus-message 6 "Exiting summary buffer and applying spam rules")
1362 ;; before we begin, remove any article limits
1364 ; (gnus-summary-pop-limit t))
1366 ;; first of all, unregister any articles that are no longer ham or spam
1367 ;; we have to iterate over the processors, or else we'll be too slow
1368 (dolist (classification (spam-classifications))
1369 (let* ((old-articles (cdr-safe (assq classification spam-old-articles
)))
1370 (new-articles (spam-list-articles
1371 gnus-newsgroup-articles
1373 (changed-articles (spam-set-difference new-articles old-articles
)))
1374 ;; now that we have the changed articles, we go through the processors
1375 (dolist (backend (spam-backend-list))
1376 (let (unregister-list)
1377 (dolist (article changed-articles
)
1378 (let ((id (spam-fetch-field-message-id-fast article
)))
1379 (when (spam-log-unregistration-needed-p
1380 id
'process classification backend
)
1381 (push article unregister-list
))))
1382 ;; call spam-register-routine with specific articles to unregister,
1383 ;; when there are articles to unregister and the check is enabled
1384 (when (and unregister-list
(symbol-value backend
))
1385 (spam-backend-put-article-todo-list backend
1390 ;; do the non-moving backends first, then the moving ones
1391 (dolist (backend-type '(non-mover mover
))
1392 (dolist (classification (spam-classifications))
1393 (dolist (backend (spam-backend-list backend-type
))
1394 (when (spam-group-processor-p
1398 (spam-backend-put-article-todo-list backend
1401 gnus-newsgroup-articles
1402 classification
))))))
1404 (spam-resolve-registrations-routine) ; do the registrations now
1406 ;; we mark all the leftover spam articles as expired at the end
1407 (dolist (article (spam-list-articles
1408 gnus-newsgroup-articles
1410 (gnus-summary-mark-article article gnus-expirable-mark
)))
1412 (setq spam-old-articles nil
))
1416 ;;{{{ spam-use-move and spam-use-copy backend support functions
1418 (defun spam-copy-or-move-routine (copy groups articles classification
)
1420 (when (and (car-safe groups
) (listp (car-safe groups
)))
1421 (setq groups
(pop groups
)))
1423 (unless (listp groups
)
1424 (setq groups
(list groups
)))
1426 ;; remove the current process mark
1427 (gnus-summary-kill-process-mark)
1429 (let ((backend-supports-deletions
1430 (gnus-check-backend-function
1431 'request-move-article gnus-newsgroup-name
))
1432 (respool-method (gnus-find-method-for-group gnus-newsgroup-name
))
1433 article mark deletep respool valid-move-destinations
)
1435 (when (member 'respool groups
)
1436 (setq respool t
) ; boolean for later
1437 (setq groups
'("fake"))) ; when respooling, groups are dynamic so fake it
1439 ;; exclude invalid move destinations
1440 (dolist (group groups
)
1444 (eq classification
'spam
)
1445 (spam-group-spam-contents-p gnus-newsgroup-name
)
1446 (spam-group-spam-contents-p group
)
1449 "Sorry, can't move spam from spam group %s to spam group %s"
1453 (eq classification
'ham
)
1454 (spam-group-ham-contents-p gnus-newsgroup-name
)
1455 (spam-group-ham-contents-p group
)
1458 "Sorry, can't move ham from ham group %s to ham group %s"
1461 (push group valid-move-destinations
)))
1463 (setq groups
(nreverse valid-move-destinations
))
1465 ;; now do the actual move
1466 (dolist (group groups
)
1468 (when (and articles
(stringp group
))
1470 ;; first, mark the article with the process mark and, if needed,
1471 ;; the unread or expired mark (for ham and spam respectively)
1472 (dolist (article articles
)
1473 (when (and (eq classification
'ham
)
1474 spam-mark-ham-unread-before-move-from-spam-group
)
1475 (gnus-message 9 "Marking ham article %d unread before move"
1477 (gnus-summary-mark-article article gnus-unread-mark
))
1478 (when (and (eq classification
'spam
)
1480 (gnus-message 9 "Marking spam article %d expirable before move"
1482 (gnus-summary-mark-article article gnus-expirable-mark
))
1483 (gnus-summary-set-process-mark article
)
1485 (if respool
; respooling is with a "fake" group
1486 (let ((spam-split-disabled
1487 (or spam-split-disabled
1488 (and (eq classification
'ham
)
1489 spam-disable-spam-split-during-ham-respool
))))
1490 (gnus-message 9 "Respooling article %d with method %s"
1491 article respool-method
)
1492 (gnus-summary-respool-article nil respool-method
))
1493 ;; else, we are not respooling
1494 (if (or (not backend-supports-deletions
)
1495 (> (length groups
) 1))
1496 (progn ; if copying, copy and set deletep
1497 (gnus-message 9 "Copying article %d to group %s"
1499 (gnus-summary-copy-article nil group
)
1501 (gnus-message 9 "Moving article %d to group %s"
1503 (gnus-summary-move-article nil group
)))))) ; else move articles
1505 ;; now delete the articles, unless a) copy is t, and there was a copy done
1506 ;; b) a move was done to a single group
1507 ;; c) backend-supports-deletions is nil
1509 (when (and deletep backend-supports-deletions
)
1510 (dolist (article articles
)
1511 (gnus-summary-set-process-mark article
)
1512 (gnus-message 9 "Deleting article %d" article
))
1514 (let ((gnus-novice-user nil
)) ; don't ask me if I'm sure
1515 (gnus-summary-delete-article nil
)))))
1516 (gnus-summary-yank-process-mark)
1519 (defun spam-copy-spam-routine (articles)
1520 (spam-copy-or-move-routine
1522 (gnus-parameter-spam-process-destination gnus-newsgroup-name
)
1526 (defun spam-move-spam-routine (articles)
1527 (spam-copy-or-move-routine
1529 (gnus-parameter-spam-process-destination gnus-newsgroup-name
)
1533 (defun spam-copy-ham-routine (articles)
1534 (spam-copy-or-move-routine
1536 (gnus-parameter-ham-process-destination gnus-newsgroup-name
)
1540 (defun spam-move-ham-routine (articles)
1541 (spam-copy-or-move-routine
1543 (gnus-parameter-ham-process-destination gnus-newsgroup-name
)
1549 ;;{{{ article and field retrieval code
1550 (defun spam-get-article-as-string (article)
1551 (when (numberp article
)
1553 (gnus-request-article-this-buffer
1555 gnus-newsgroup-name
)
1559 ;; (defun spam-get-article-as-filename (article)
1560 ;; (let ((article-filename))
1561 ;; (when (numberp article)
1562 ;; (nnml-possibly-change-directory
1563 ;; (gnus-group-real-name gnus-newsgroup-name))
1564 ;; (setq article-filename (expand-file-name
1565 ;; (int-to-string article) nnml-current-directory)))
1566 ;; (if (file-exists-p article-filename)
1570 (defun spam-fetch-field-fast (article field
&optional prepared-data-header
)
1571 "Fetch a FIELD for ARTICLE with the internal `gnus-data-list' function.
1572 When PREPARED-DATA-HEADER is given, don't look in the Gnus data.
1573 When FIELD is 'number, ARTICLE can be any number (since we want
1575 (when (numberp article
)
1576 (let* ((data-header (or prepared-data-header
1577 (spam-fetch-article-header article
))))
1579 ((not (arrayp data-header
))
1580 (gnus-message 6 "Article %d has a nil data header" article
))
1581 ((equal field
'number
)
1582 (mail-header-number data-header
))
1583 ((equal field
'from
)
1584 (mail-header-from data-header
))
1585 ((equal field
'message-id
)
1586 (mail-header-message-id data-header
))
1587 ((equal field
'subject
)
1588 (mail-header-subject data-header
))
1589 ((equal field
'references
)
1590 (mail-header-references data-header
))
1591 ((equal field
'date
)
1592 (mail-header-date data-header
))
1593 ((equal field
'xref
)
1594 (mail-header-xref data-header
))
1595 ((equal field
'extra
)
1596 (mail-header-extra data-header
))
1600 "spam-fetch-field-fast: unknown field %s requested"
1604 (defun spam-fetch-field-from-fast (article &optional prepared-data-header
)
1605 (spam-fetch-field-fast article
'from prepared-data-header
))
1607 (defun spam-fetch-field-subject-fast (article &optional prepared-data-header
)
1608 (spam-fetch-field-fast article
'subject prepared-data-header
))
1610 (defun spam-fetch-field-message-id-fast (article &optional prepared-data-header
)
1611 (spam-fetch-field-fast article
'message-id prepared-data-header
))
1613 (defun spam-generate-fake-headers (article)
1614 (let ((dh (spam-fetch-article-header article
)))
1618 ;; 80-character limit makes for strange constructs
1619 (concat "From: %s\nSubject: %s\nMessage-ID: %s\n"
1620 "Date: %s\nReferences: %s\nXref: %s\n")
1621 (spam-fetch-field-fast article
'from dh
)
1622 (spam-fetch-field-fast article
'subject dh
)
1623 (spam-fetch-field-fast article
'message-id dh
)
1624 (spam-fetch-field-fast article
'date dh
)
1625 (spam-fetch-field-fast article
'references dh
)
1626 (spam-fetch-field-fast article
'xref dh
))
1627 (when (spam-fetch-field-fast article
'extra dh
)
1628 (format "%s\n" (spam-fetch-field-fast article
'extra dh
))))
1631 "spam-generate-fake-headers: article %d didn't have a valid header"
1634 (defun spam-fetch-article-header (article)
1635 (with-current-buffer gnus-summary-buffer
1636 (gnus-read-header article
)
1637 (nth 3 (assq article gnus-newsgroup-data
))))
1640 ;;{{{ Spam determination.
1642 (defun spam-split (&rest specific-checks
)
1643 "Split this message into the `spam' group if it is spam.
1644 This function can be used as an entry in the variable `nnmail-split-fancy',
1645 for example like this: (: spam-split). It can take checks as
1646 parameters. A string as a parameter will set the
1647 `spam-split-group' to that string.
1649 See the Info node `(gnus)Fancy Mail Splitting' for more details."
1651 (setq spam-split-last-successful-check nil
)
1652 (unless spam-split-disabled
1653 (let ((spam-split-group-choice spam-split-group
))
1654 (dolist (check specific-checks
)
1655 (when (stringp check
)
1656 (setq spam-split-group-choice check
)
1657 (setq specific-checks
(delq check specific-checks
))))
1659 (let ((spam-split-group spam-split-group-choice
)
1660 (widening-needed-check (spam-widening-needed-p specific-checks
)))
1663 (when widening-needed-check
1665 (gnus-message 8 "spam-split: widening the buffer (%s requires it)"
1666 widening-needed-check
))
1667 (let ((backends (spam-backend-list))
1669 (while (and backends
(not decision
))
1670 (let* ((backend (pop backends
))
1671 (check-function (spam-backend-check backend
))
1672 (spam-split-group (if spam-split-symbolic-return
1676 ;; either, given specific checks, this is one of them
1677 (memq backend specific-checks
)
1678 ;; or, given no specific checks, spam-use-CHECK is set
1679 (and (null specific-checks
) (symbol-value backend
)))
1680 (gnus-message 6 "spam-split: calling the %s function"
1682 (setq decision
(funcall check-function
))
1683 ;; if we got a decision at all, save the current check
1685 (setq spam-split-last-successful-check backend
))
1687 (when (eq decision
'spam
)
1688 (unless spam-split-symbolic-return
1691 (format "spam-split got %s but %s is nil"
1693 spam-split-symbolic-return
)))))))
1695 (if spam-split-symbolic-return-positive
'ham nil
)
1698 (defun spam-find-spam ()
1699 "Detect spam in the current newsgroup using `spam-split'."
1702 (let* ((group gnus-newsgroup-name
)
1703 (autodetect (gnus-parameter-spam-autodetect group
))
1704 (methods (gnus-parameter-spam-autodetect-methods group
))
1705 (first-method (nth 0 methods
))
1706 (articles (if spam-autodetect-recheck-messages
1707 gnus-newsgroup-articles
1708 gnus-newsgroup-unseen
))
1709 article-cannot-be-faked
)
1712 (dolist (backend methods
)
1713 (when (spam-backend-statistical-p backend
)
1714 (setq article-cannot-be-faked t
)
1717 (when (memq 'default methods
)
1718 (setq article-cannot-be-faked t
))
1720 (when (and autodetect
1721 (not (equal first-method
'none
)))
1724 (let ((id (spam-fetch-field-message-id-fast article
))
1725 (subject (spam-fetch-field-subject-fast article
))
1726 (sender (spam-fetch-field-from-fast article
))
1730 (gnus-message 6 "Article %d has no message ID!" article
))
1732 (when (and id spam-log-to-registry
)
1733 (setq registry-lookup
(spam-log-registration-type id
'incoming
))
1734 (when registry-lookup
1737 "spam-find-spam: message %s was already registered incoming"
1740 (let* ((spam-split-symbolic-return t
)
1741 (spam-split-symbolic-return-positive t
)
1742 (fake-headers (spam-generate-fake-headers article
))
1746 (if article-cannot-be-faked
1747 (gnus-request-article-this-buffer
1750 ;; else, we fake the article
1751 (when fake-headers
(insert fake-headers
)))
1752 (if (or (null first-method
)
1753 (equal first-method
'default
))
1755 (apply 'spam-split methods
))))))
1756 (if (equal split-return
'spam
)
1757 (gnus-summary-mark-article article gnus-spam-mark
))
1759 (when (and id split-return spam-log-to-registry
)
1760 (when (zerop (gnus-registry-group-count id
))
1761 (gnus-registry-handle-action id nil group subject sender
))
1763 (unless registry-lookup
1764 (spam-log-processing-to-registry
1768 spam-split-last-successful-check
1774 ;;{{{ registration/unregistration functions
1776 (defun spam-resolve-registrations-routine ()
1777 "Go through the backends and register or unregister articles as needed."
1778 (dolist (backend-type '(non-mover mover
))
1779 (dolist (classification (spam-classifications))
1780 (dolist (backend (spam-backend-list backend-type
))
1781 (let ((rlist (spam-backend-get-article-todo-list
1782 backend classification
))
1783 (ulist (spam-backend-get-article-todo-list
1784 backend classification t
))
1787 ;; clear the old lists right away
1788 (spam-backend-put-article-todo-list backend
1792 (spam-backend-put-article-todo-list backend
1797 ;; eliminate duplicates
1798 (dolist (article (copy-sequence ulist
))
1799 (when (memq article rlist
)
1801 (setq rlist
(delq article rlist
))
1802 (setq ulist
(delq article ulist
))))
1804 (unless (zerop delcount
)
1807 "%d messages did not have to unregister and then register"
1810 ;; unregister articles
1811 (unless (zerop (length ulist
))
1812 (let ((num (spam-unregister-routine classification backend ulist
)))
1816 "%d %s messages were unregistered by backend %s."
1821 ;; register articles
1822 (unless (zerop (length rlist
))
1823 (let ((num (spam-register-routine classification backend rlist
)))
1827 "%d %s messages were registered by backend %s."
1832 (defun spam-unregister-routine (classification
1835 (spam-register-routine classification backend specific-articles t
))
1837 (defun spam-register-routine (classification
1840 &optional unregister
)
1841 (when (and (spam-classification-valid-p classification
)
1842 (spam-backend-valid-p backend
))
1843 (let* ((register-function
1844 (spam-backend-function backend classification
'registration
))
1845 (unregister-function
1846 (spam-backend-function backend classification
'unregistration
))
1847 (run-function (if unregister
1850 (log-function (if unregister
1851 'spam-log-undo-registration
1852 'spam-log-processing-to-registry
))
1856 ;; make list of articles, using specific-articles if given
1857 (setq articles
(or specific-articles
1859 gnus-newsgroup-articles
1862 (when (> (length articles
) 0)
1863 (gnus-message 5 "%s %d %s articles as %s using backend %s"
1864 (if unregister
"Unregistering" "Registering")
1866 (if specific-articles
"specific" "")
1869 (funcall run-function articles
)
1870 ;; now log all the registrations (or undo them, depending on
1872 (dolist (article articles
)
1873 (funcall log-function
1874 (spam-fetch-field-message-id-fast article
)
1878 gnus-newsgroup-name
))))
1879 ;; return the number of articles processed
1880 (length articles
))))
1882 ;;; log a ham- or spam-processor invocation to the registry
1883 (defun spam-log-processing-to-registry (id type classification backend group
)
1884 (when spam-log-to-registry
1885 (if (and (stringp id
)
1887 (spam-process-type-valid-p type
)
1888 (spam-classification-valid-p classification
)
1889 (spam-backend-valid-p backend
))
1890 (let ((cell-list (gnus-registry-get-id-key id type
))
1891 (cell (list classification backend group
)))
1892 (push cell cell-list
)
1893 (gnus-registry-set-id-key id type cell-list
))
1898 "%s call with bad ID, type, classification, spam-backend, or group"
1899 "spam-log-processing-to-registry")))))
1901 ;;; check if a ham- or spam-processor registration has been done
1902 (defun spam-log-registered-p (id type
)
1903 (when spam-log-to-registry
1904 (if (and (stringp id
)
1905 (spam-process-type-valid-p type
))
1906 (gnus-registry-get-id-key id type
)
1910 (format "%s called with bad ID, type, classification, or spam-backend"
1911 "spam-log-registered-p"))
1914 ;;; check what a ham- or spam-processor registration says
1915 ;;; returns nil if conflicting registrations are found
1916 (defun spam-log-registration-type (id type
)
1919 (dolist (reg (spam-log-registered-p id type
))
1920 (let ((classification (nth 0 reg
)))
1921 (when (spam-classification-valid-p classification
)
1923 (not (eq classification decision
)))
1924 (setq count
(+ 1 count
)))
1925 (setq decision classification
))))
1931 ;;; check if a ham- or spam-processor registration needs to be undone
1932 (defun spam-log-unregistration-needed-p (id type classification backend
)
1933 (when spam-log-to-registry
1934 (if (and (stringp id
)
1935 (spam-process-type-valid-p type
)
1936 (spam-classification-valid-p classification
)
1937 (spam-backend-valid-p backend
))
1938 (let ((cell-list (gnus-registry-get-id-key id type
))
1940 (dolist (cell cell-list
)
1942 (when (and (eq classification
(nth 0 cell
))
1943 (eq backend
(nth 1 cell
)))
1949 (format "%s called with bad ID, type, classification, or spam-backend"
1950 "spam-log-unregistration-needed-p"))
1954 ;;; undo a ham- or spam-processor registration (the group is not used)
1955 (defun spam-log-undo-registration (id type classification backend
1957 (when (and spam-log-to-registry
1958 (spam-log-unregistration-needed-p id type classification backend
))
1959 (if (and (stringp id
)
1960 (spam-process-type-valid-p type
)
1961 (spam-classification-valid-p classification
)
1962 (spam-backend-valid-p backend
))
1963 (let ((cell-list (gnus-registry-get-id-key id type
))
1964 new-cell-list found
)
1965 (dolist (cell cell-list
)
1966 (unless (and (eq classification
(nth 0 cell
))
1967 (eq backend
(nth 1 cell
)))
1968 (push cell new-cell-list
)))
1969 (gnus-registry-set-id-key id type new-cell-list
))
1971 (gnus-error 7 (format
1972 "%s call with bad ID, type, spam-backend, or group"
1973 "spam-log-undo-registration"))
1978 ;;{{{ backend functions
1981 (defun spam-check-gmane-xref ()
1983 (message-fetch-field "Xref")
1984 (message-fetch-field "Newsgroups"))))
1985 (when header
; return nil when no header
1986 (when (string-match spam-gmane-xref-spam-group
1988 spam-split-group
))))
1994 (defun spam-check-regex-body ()
1995 (let ((spam-regex-headers-ham spam-regex-body-ham
)
1996 (spam-regex-headers-spam spam-regex-body-spam
))
1997 (spam-check-regex-headers t
)))
2003 (defun spam-check-regex-headers (&optional body
)
2004 (let ((type (if body
"body" "header"))
2006 (dolist (h-regex spam-regex-headers-ham
)
2008 (goto-char (point-min))
2009 (when (re-search-forward h-regex nil t
)
2010 (message "Ham regex %s search positive." type
)
2012 (dolist (s-regex spam-regex-headers-spam
)
2014 (goto-char (point-min))
2015 (when (re-search-forward s-regex nil t
)
2016 (message "Spam regex %s search positive." type
)
2018 (setq ret spam-split-group
))))
2025 (defun spam-reverse-ip-string (ip)
2027 (mapconcat 'identity
2028 (nreverse (split-string ip
"\\."))
2031 (defun spam-check-blackholes ()
2032 "Check the Received headers for blackholed relays."
2033 (let ((headers (message-fetch-field "received"))
2038 (goto-char (point-min))
2039 (gnus-message 6 "Checking headers for relay addresses")
2040 (while (re-search-forward
2041 "\\([0-9]+\\.[0-9]+\\.[0-9]+\\.[0-9]+\\)" nil t
)
2042 (gnus-message 9 "Blackhole search found host IP %s." (match-string 1))
2043 (push (spam-reverse-ip-string (match-string 1))
2045 (dolist (server spam-blackhole-servers
)
2047 (unless (and spam-blackhole-good-server-regex
2048 ;; match against the reversed (again) IP string
2050 spam-blackhole-good-server-regex
2051 (spam-reverse-ip-string ip
)))
2053 (let ((query-string (concat ip
"." server
)))
2055 (let ((query-result (query-dig query-string
)))
2057 (gnus-message 6 "(DIG): positive blackhole check `%s'"
2059 (push (list ip server query-result
)
2061 ;; else, if not using dig.el
2062 (when (dns-query query-string
)
2063 (gnus-message 6 "positive blackhole check")
2064 (push (list ip server
(dns-query query-string
'TXT
))
2072 (defun spam-check-hashcash ()
2073 "Check the headers for hashcash payments."
2074 (ignore-errors (mail-check-payment))) ;mail-check-payment returns a boolean
2080 ;;; original idea for spam-check-BBDB from Alexander Kotelnikov
2081 ;;; <sacha@giotto.sj.ru>
2083 ;; all this is done inside a condition-case to trap errors
2085 ;; Autoloaded in message, which we require.
2086 (declare-function gnus-extract-address-components
"gnus-util" (from))
2092 (require 'bbdb-com
))
2094 ;; `bbdb-records' should not be bound as an autoload function
2095 ;; before loading bbdb because of `bbdb-hashtable-size'.
2096 (defalias 'bbdb-buffer
'ignore
)
2097 (defalias 'bbdb-create-internal
'ignore
)
2098 (defalias 'bbdb-records
'ignore
)
2099 (defalias 'spam-BBDB-register-routine
'ignore
)
2100 (defalias 'spam-enter-ham-BBDB
'ignore
)
2101 (defalias 'spam-exists-in-BBDB-p
'ignore
)
2102 (defalias 'bbdb-gethash
'ignore
)
2106 (when (featurep 'bbdb-com
)
2107 ;; when the BBDB changes, we want to clear out our cache
2108 (defun spam-clear-cache-BBDB (&rest immaterial
)
2109 (spam-clear-cache 'spam-use-BBDB
))
2111 (add-hook 'bbdb-change-hook
'spam-clear-cache-BBDB
)
2113 (defun spam-enter-ham-BBDB (addresses &optional remove
)
2114 "Enter an address into the BBDB; implies ham (non-spam) sender"
2115 (dolist (from addresses
)
2116 (when (stringp from
)
2117 (let* ((parsed-address (gnus-extract-address-components from
))
2118 (name (or (nth 0 parsed-address
) "Ham Sender"))
2119 (remove-function (if remove
2120 'bbdb-delete-record-internal
2122 (net-address (nth 1 parsed-address
))
2123 (record (and net-address
2124 (spam-exists-in-BBDB-p net-address
))))
2126 (gnus-message 6 "%s address %s %s BBDB"
2127 (if remove
"Deleting" "Adding")
2129 (if remove
"from" "to"))
2131 (funcall remove-function record
)
2132 (bbdb-create-internal name nil net-address nil nil
2133 "ham sender added by spam.el")))))))
2135 (defun spam-BBDB-register-routine (articles &optional unregister
)
2137 (dolist (article articles
)
2138 (when (stringp (spam-fetch-field-from-fast article
))
2139 (push (spam-fetch-field-from-fast article
) addresses
)))
2140 ;; now do the register/unregister action
2141 (spam-enter-ham-BBDB addresses unregister
)))
2143 (defun spam-BBDB-unregister-routine (articles)
2144 (spam-BBDB-register-routine articles t
))
2146 (defsubst spam-exists-in-BBDB-p
(net)
2147 (when (and (stringp net
) (not (zerop (length net
))))
2149 (bbdb-gethash (downcase net
))))
2151 (defun spam-check-BBDB ()
2152 "Mail from people in the BBDB is classified as ham or non-spam"
2153 (let ((net (message-fetch-field "from")))
2155 (setq net
(nth 1 (gnus-extract-address-components net
)))
2156 (if (spam-exists-in-BBDB-p net
)
2158 (if spam-use-BBDB-exclusive
2166 ;;; check the ifile backend; return nil if the mail was NOT classified
2170 (defun spam-get-ifile-database-parameter ()
2171 "Return the command-line parameter for ifile's database.
2172 See `spam-ifile-database'."
2173 (if spam-ifile-database
2174 (format "--db-file=%s" spam-ifile-database
)
2177 (defun spam-check-ifile ()
2178 "Check the ifile backend for the classification of this message."
2179 (let ((article-buffer-name (buffer-name))
2182 (let ((temp-buffer-name (buffer-name))
2183 (db-param (spam-get-ifile-database-parameter)))
2184 (with-current-buffer article-buffer-name
2185 (apply 'call-process-region
2186 (point-min) (point-max) spam-ifile-program
2187 nil temp-buffer-name nil
"-c"
2188 (if db-param
`(,db-param
"-q") `("-q"))))
2189 ;; check the return now (we're back in the temp buffer)
2190 (goto-char (point-min))
2192 (setq category
(buffer-substring (point) (point-at-eol))))
2193 (when (not (zerop (length category
))) ; we need a category here
2194 (if spam-ifile-all-categories
2195 (setq return category
)
2196 ;; else, if spam-ifile-all-categories is not set...
2197 (when (string-equal spam-ifile-spam-category category
)
2198 (setq return spam-split-group
)))))) ; note return is nil otherwise
2201 (defun spam-ifile-register-with-ifile (articles category
&optional unregister
)
2202 "Register an article, given as a string, with a category.
2203 Uses `gnus-newsgroup-name' if category is nil (for ham registration)."
2204 (let ((category (or category gnus-newsgroup-name
))
2205 (add-or-delete-option (if unregister
"-d" "-i"))
2206 (db (spam-get-ifile-database-parameter))
2209 (dolist (article articles
)
2210 (let ((article-string (spam-get-article-as-string article
)))
2211 (when (stringp article-string
)
2212 (insert article-string
))))
2213 (apply 'call-process-region
2214 (point-min) (point-max) spam-ifile-program
2216 add-or-delete-option category
2217 (if db
`(,db
"-h") `("-h"))))))
2219 (defun spam-ifile-register-spam-routine (articles &optional unregister
)
2220 (spam-ifile-register-with-ifile articles spam-ifile-spam-category unregister
))
2222 (defun spam-ifile-unregister-spam-routine (articles)
2223 (spam-ifile-register-spam-routine articles t
))
2225 (defun spam-ifile-register-ham-routine (articles &optional unregister
)
2226 (spam-ifile-register-with-ifile articles spam-ifile-ham-category unregister
))
2228 (defun spam-ifile-unregister-ham-routine (articles)
2229 (spam-ifile-register-ham-routine articles t
))
2235 (require 'spam-stat
)
2237 (defun spam-check-stat ()
2238 "Check the spam-stat backend for the classification of this message"
2239 (let ((spam-stat-split-fancy-spam-group spam-split-group
) ; override
2240 (spam-stat-buffer (buffer-name)) ; stat the current buffer
2242 (spam-stat-split-fancy)))
2244 (defun spam-stat-register-spam-routine (articles &optional unregister
)
2245 (dolist (article articles
)
2246 (let ((article-string (spam-get-article-as-string article
)))
2248 (insert article-string
)
2250 (spam-stat-buffer-change-to-non-spam)
2251 (spam-stat-buffer-is-spam))))))
2253 (defun spam-stat-unregister-spam-routine (articles)
2254 (spam-stat-register-spam-routine articles t
))
2256 (defun spam-stat-register-ham-routine (articles &optional unregister
)
2257 (dolist (article articles
)
2258 (let ((article-string (spam-get-article-as-string article
)))
2260 (insert article-string
)
2262 (spam-stat-buffer-change-to-spam)
2263 (spam-stat-buffer-is-non-spam))))))
2265 (defun spam-stat-unregister-ham-routine (articles)
2266 (spam-stat-register-ham-routine articles t
))
2268 (defun spam-maybe-spam-stat-load ()
2269 (when spam-use-stat
(spam-stat-load)))
2271 (defun spam-maybe-spam-stat-save ()
2272 (when spam-use-stat
(spam-stat-save)))
2276 ;;{{{ Blacklists and whitelists.
2278 (defvar spam-whitelist-cache nil
)
2279 (defvar spam-blacklist-cache nil
)
2281 (defun spam-kill-whole-line ()
2283 (let ((kill-whole-line t
))
2286 ;;; address can be a list, too
2287 (defun spam-enter-whitelist (address &optional remove
)
2288 "Enter ADDRESS (list or single) into the whitelist.
2289 With a non-nil REMOVE, remove them."
2290 (interactive "sAddress: ")
2291 (spam-enter-list address spam-whitelist remove
)
2292 (setq spam-whitelist-cache nil
)
2293 (spam-clear-cache 'spam-use-whitelist
))
2295 ;;; address can be a list, too
2296 (defun spam-enter-blacklist (address &optional remove
)
2297 "Enter ADDRESS (list or single) into the blacklist.
2298 With a non-nil REMOVE, remove them."
2299 (interactive "sAddress: ")
2300 (spam-enter-list address spam-blacklist remove
)
2301 (setq spam-blacklist-cache nil
)
2302 (spam-clear-cache 'spam-use-whitelist
))
2304 (defun spam-enter-list (addresses file
&optional remove
)
2305 "Enter ADDRESSES into the given FILE.
2306 Either the whitelist or the blacklist files can be used.
2307 With a non-nil REMOVE, remove the ADDRESSES."
2308 (if (stringp addresses
)
2309 (spam-enter-list (list addresses
) file remove
)
2310 ;; else, we have a list of addresses here
2311 (unless (file-exists-p (file-name-directory file
))
2312 (make-directory (file-name-directory file
) t
))
2313 (with-current-buffer
2314 (find-file-noselect file
)
2315 (dolist (a addresses
)
2317 (goto-char (point-min))
2318 (if (re-search-forward (regexp-quote a
) nil t
)
2319 ;; found the address
2321 (spam-kill-whole-line))
2322 ;; else, the address was not found
2324 (goto-char (point-max))
2330 (defun spam-filelist-build-cache (type)
2331 (let ((cache (if (eq type
'spam-use-blacklist
)
2332 spam-blacklist-cache
2333 spam-whitelist-cache
))
2335 (unless (gethash type spam-caches
)
2337 (let ((address (pop cache
)))
2338 (unless (zerop (length address
)) ; 0 for a nil address too
2339 (setq address
(regexp-quote address
))
2340 ;; fix regexp-quote's treatment of user-intended regexes
2341 (while (string-match "\\\\\\*" address
)
2342 (setq address
(replace-match ".*" t t address
))))
2343 (push address parsed-cache
)))
2344 (puthash type parsed-cache spam-caches
))))
2346 (defun spam-filelist-check-cache (type from
)
2347 (when (stringp from
)
2348 (spam-filelist-build-cache type
)
2350 (dolist (address (gethash type spam-caches
))
2351 (when (and address
(string-match address from
))
2356 ;;; returns t if the sender is in the whitelist, nil or
2357 ;;; spam-split-group otherwise
2358 (defun spam-check-whitelist ()
2359 ;; FIXME! Should it detect when file timestamps change?
2360 (unless spam-whitelist-cache
2361 (setq spam-whitelist-cache
(spam-parse-list spam-whitelist
)))
2362 (if (spam-from-listed-p 'spam-use-whitelist
)
2364 (if spam-use-whitelist-exclusive
2368 (defun spam-check-blacklist ()
2369 ;; FIXME! Should it detect when file timestamps change?
2370 (unless spam-blacklist-cache
2371 (setq spam-blacklist-cache
(spam-parse-list spam-blacklist
)))
2372 (and (spam-from-listed-p 'spam-use-blacklist
)
2375 (defun spam-parse-list (file)
2376 (when (file-readable-p file
)
2377 (let (contents address
)
2379 (insert-file-contents file
)
2381 (setq address
(buffer-substring (point) (point-at-eol)))
2383 ;; insert the e-mail address if detected, otherwise the raw data
2384 (unless (zerop (length address
))
2386 (nth 1 (gnus-extract-address-components address
))))
2387 (push (or pure-address address
) contents
)))))
2388 (nreverse contents
))))
2390 (defun spam-from-listed-p (type)
2391 (let ((from (message-fetch-field "from"))
2393 (spam-filelist-check-cache type from
)))
2395 (defun spam-filelist-register-routine (articles blacklist
&optional unregister
)
2396 (let ((de-symbol (if blacklist
'spam-use-whitelist
'spam-use-blacklist
))
2397 (declassification (if blacklist
'ham
'spam
))
2399 (if blacklist
'spam-enter-blacklist
'spam-enter-whitelist
))
2401 (if blacklist
'spam-enter-whitelist
'spam-enter-blacklist
))
2402 from addresses unregister-list article-unregister-list
)
2403 (dolist (article articles
)
2404 (let ((from (spam-fetch-field-from-fast article
))
2405 (id (spam-fetch-field-message-id-fast article
))
2407 (when (stringp from
)
2408 (dolist (ignore-regex spam-blacklist-ignored-regexes
)
2409 (when (and (not sender-ignored
)
2410 (stringp ignore-regex
)
2411 (string-match ignore-regex from
))
2412 (setq sender-ignored t
)))
2413 ;; remember the messages we need to unregister, unless remove is set
2416 (spam-log-unregistration-needed-p
2417 id
'process declassification de-symbol
))
2418 (push article article-unregister-list
)
2419 (push from unregister-list
))
2420 (unless sender-ignored
2421 (push from addresses
)))))
2424 (funcall enter-function addresses t
) ; unregister all these addresses
2425 ;; else, register normally and unregister what we need to
2426 (funcall remove-function unregister-list t
)
2427 (dolist (article article-unregister-list
)
2428 (spam-log-undo-registration
2429 (spam-fetch-field-message-id-fast article
)
2433 (funcall enter-function addresses nil
))))
2435 (defun spam-blacklist-unregister-routine (articles)
2436 (spam-blacklist-register-routine articles t
))
2438 (defun spam-blacklist-register-routine (articles &optional unregister
)
2439 (spam-filelist-register-routine articles t unregister
))
2441 (defun spam-whitelist-unregister-routine (articles)
2442 (spam-whitelist-register-routine articles t
))
2444 (defun spam-whitelist-register-routine (articles &optional unregister
)
2445 (spam-filelist-register-routine articles nil unregister
))
2449 ;;{{{ Spam-report glue (gmane and resend reporting)
2450 (defun spam-report-gmane-register-routine (articles)
2452 (apply 'spam-report-gmane-spam articles
)))
2454 (defun spam-report-gmane-unregister-routine (articles)
2456 (apply 'spam-report-gmane-ham articles
)))
2458 (defun spam-report-resend-register-ham-routine (articles)
2459 (spam-report-resend-register-routine articles t
))
2461 (defvar spam-report-resend-to
)
2463 (defun spam-report-resend-register-routine (articles &optional ham
)
2464 (require 'spam-report
)
2465 (let* ((resend-to-gp
2467 (gnus-parameter-ham-resend-to gnus-newsgroup-name
)
2468 (gnus-parameter-spam-resend-to gnus-newsgroup-name
)))
2469 (spam-report-resend-to (or (car-safe resend-to-gp
)
2470 spam-report-resend-to
)))
2471 (spam-report-resend articles ham
)))
2476 (defun spam-check-bogofilter-headers (&optional score
)
2477 (let ((header (message-fetch-field spam-bogofilter-header
)))
2478 (when header
; return nil when no header
2479 (if score
; scoring mode
2480 (if (string-match "spamicity=\\([0-9.]+\\)" header
)
2481 (match-string 1 header
)
2483 ;; spam detection mode
2484 (when (string-match spam-bogofilter-bogosity-positive-spam-header
2486 spam-split-group
)))))
2488 ;; return something sensible if the score can't be determined
2489 (defun spam-bogofilter-score (&optional recheck
)
2490 "Get the Bogofilter spamicity score."
2492 (save-window-excursion
2493 (gnus-summary-show-article t
)
2494 (set-buffer gnus-article-buffer
)
2495 (let ((score (or (unless recheck
2496 (spam-check-bogofilter-headers t
))
2497 (spam-check-bogofilter t
))))
2498 (gnus-summary-show-article)
2499 (message "Spamicity score %s" score
)
2502 (defun spam-verify-bogofilter ()
2503 "Verify the Bogofilter version is sufficient."
2504 (when (eq spam-bogofilter-valid
'unknown
)
2505 (setq spam-bogofilter-valid
2506 (not (string-match "^bogofilter version 0\\.\\([0-9]\\|1[01]\\)\\."
2507 (shell-command-to-string
2508 (format "%s -V" spam-bogofilter-program
))))))
2509 spam-bogofilter-valid
)
2511 (defun spam-check-bogofilter (&optional score
)
2512 "Check the Bogofilter backend for the classification of this message."
2513 (if (spam-verify-bogofilter)
2514 (let ((article-buffer-name (buffer-name))
2515 (db spam-bogofilter-database-directory
)
2518 (let ((temp-buffer-name (buffer-name)))
2519 (with-current-buffer article-buffer-name
2520 (apply 'call-process-region
2521 (point-min) (point-max)
2522 spam-bogofilter-program
2523 nil temp-buffer-name nil
2524 (if db
`("-d" ,db
"-v") `("-v"))))
2525 (setq return
(spam-check-bogofilter-headers score
))))
2527 (gnus-error 5 "`spam.el' doesn't support obsolete bogofilter versions")))
2529 (defun spam-bogofilter-register-with-bogofilter (articles
2531 &optional unregister
)
2532 "Register an article, given as a string, as spam or non-spam."
2533 (if (spam-verify-bogofilter)
2534 (dolist (article articles
)
2535 (let ((article-string (spam-get-article-as-string article
))
2536 (db spam-bogofilter-database-directory
)
2537 (switch (if unregister
2539 spam-bogofilter-spam-strong-switch
2540 spam-bogofilter-ham-strong-switch
)
2542 spam-bogofilter-spam-switch
2543 spam-bogofilter-ham-switch
))))
2544 (when (stringp article-string
)
2546 (insert article-string
)
2548 (apply 'call-process-region
2549 (point-min) (point-max)
2550 spam-bogofilter-program
2552 (if db
`("-d" ,db
"-v") `("-v")))))))
2553 (gnus-error 5 "`spam.el' doesn't support obsolete bogofilter versions")))
2555 (defun spam-bogofilter-register-spam-routine (articles &optional unregister
)
2556 (spam-bogofilter-register-with-bogofilter articles t unregister
))
2558 (defun spam-bogofilter-unregister-spam-routine (articles)
2559 (spam-bogofilter-register-spam-routine articles t
))
2561 (defun spam-bogofilter-register-ham-routine (articles &optional unregister
)
2562 (spam-bogofilter-register-with-bogofilter articles nil unregister
))
2564 (defun spam-bogofilter-unregister-ham-routine (articles)
2565 (spam-bogofilter-register-ham-routine articles t
))
2571 (defun spam-check-spamoracle ()
2572 "Run spamoracle on an article to determine whether it's spam."
2573 (let ((article-buffer-name (buffer-name)))
2575 (let ((temp-buffer-name (buffer-name)))
2576 (with-current-buffer article-buffer-name
2578 (apply 'call-process-region
2579 (point-min) (point-max)
2580 spam-spamoracle-binary
2581 nil temp-buffer-name nil
2582 (if spam-spamoracle-database
2583 `("-f" ,spam-spamoracle-database
"mark")
2587 (set-buffer temp-buffer-name
)
2588 (goto-char (point-min))
2589 (when (re-search-forward "^X-Spam: yes;" nil t
)
2591 (error "Error running spamoracle: %s" status
))))))))
2593 (defun spam-spamoracle-learn (articles article-is-spam-p
&optional unregister
)
2594 "Run spamoracle in training mode."
2596 (let ((temp-buffer-name (buffer-name)))
2598 (goto-char (point-min))
2599 (dolist (article articles
)
2600 (insert (spam-get-article-as-string article
)))
2601 (let* ((arg (if (spam-xor unregister article-is-spam-p
)
2605 (apply 'call-process-region
2606 (point-min) (point-max)
2607 spam-spamoracle-binary
2608 nil temp-buffer-name nil
2609 (if spam-spamoracle-database
2610 `("-f" ,spam-spamoracle-database
2613 (unless (eq 0 status
)
2614 (error "Error running spamoracle: %s" status
)))))))
2616 (defun spam-spamoracle-learn-ham (articles &optional unregister
)
2617 (spam-spamoracle-learn articles nil unregister
))
2619 (defun spam-spamoracle-unlearn-ham (articles &optional unregister
)
2620 (spam-spamoracle-learn-ham articles t
))
2622 (defun spam-spamoracle-learn-spam (articles &optional unregister
)
2623 (spam-spamoracle-learn articles t unregister
))
2625 (defun spam-spamoracle-unlearn-spam (articles &optional unregister
)
2626 (spam-spamoracle-learn-spam articles t
))
2631 ;;; based mostly on the bogofilter code
2632 (defun spam-check-spamassassin-headers (&optional score
)
2633 "Check the SpamAssassin headers for the classification of this message."
2634 (if score
; scoring mode
2635 (let ((header (message-fetch-field spam-spamassassin-spam-status-header
)))
2637 (if (string-match spam-spamassassin-score-regexp header
)
2638 (match-string 1 header
)
2640 ;; spam detection mode
2641 (let ((header (message-fetch-field spam-spamassassin-spam-flag-header
)))
2642 (when header
; return nil when no header
2643 (when (string-match spam-spamassassin-positive-spam-flag-header
2645 spam-split-group
)))))
2647 (defun spam-check-spamassassin (&optional score
)
2648 "Check the SpamAssassin backend for the classification of this message."
2649 (let ((article-buffer-name (buffer-name)))
2651 (let ((temp-buffer-name (buffer-name)))
2652 (with-current-buffer article-buffer-name
2653 (apply 'call-process-region
2654 (point-min) (point-max) spam-assassin-program
2655 nil temp-buffer-name nil spam-spamassassin-arguments
))
2656 ;; check the return now (we're back in the temp buffer)
2657 (goto-char (point-min))
2658 (spam-check-spamassassin-headers score
)))))
2660 ;; return something sensible if the score can't be determined
2661 (defun spam-spamassassin-score (&optional recheck
)
2662 "Get the SpamAssassin score"
2664 (save-window-excursion
2665 (gnus-summary-show-article t
)
2666 (set-buffer gnus-article-buffer
)
2667 (let ((score (or (unless recheck
2668 (spam-check-spamassassin-headers t
))
2669 (spam-check-spamassassin t
))))
2670 (gnus-summary-show-article)
2671 (message "SpamAssassin score %s" score
)
2674 (defun spam-spamassassin-register-with-sa-learn (articles spam
2675 &optional unregister
)
2676 "Register articles with spamassassin's sa-learn as spam or non-spam."
2678 (let ((action (if unregister spam-sa-learn-unregister-switch
2679 (if spam spam-sa-learn-spam-switch
2680 spam-sa-learn-ham-switch
)))
2681 (summary-buffer-name (buffer-name)))
2683 ;; group the articles into mbox format
2684 (dolist (article articles
)
2685 (let (article-string)
2686 (with-current-buffer summary-buffer-name
2687 (setq article-string
(spam-get-article-as-string article
)))
2688 (when (stringp article-string
)
2690 (insert (concat "From nobody " (current-time-string) "\n"))
2691 (insert article-string
)
2693 ;; call sa-learn on all messages at the same time
2694 (apply 'call-process-region
2695 (point-min) (point-max)
2696 spam-sa-learn-program
2697 nil nil nil
"--mbox"
2698 (if spam-sa-learn-rebuild
2700 `("--no-rebuild" ,action
)))))))
2702 (defun spam-spamassassin-register-spam-routine (articles &optional unregister
)
2703 (spam-spamassassin-register-with-sa-learn articles t unregister
))
2705 (defun spam-spamassassin-register-ham-routine (articles &optional unregister
)
2706 (spam-spamassassin-register-with-sa-learn articles nil unregister
))
2708 (defun spam-spamassassin-unregister-spam-routine (articles)
2709 (spam-spamassassin-register-with-sa-learn articles t t
))
2711 (defun spam-spamassassin-unregister-ham-routine (articles)
2712 (spam-spamassassin-register-with-sa-learn articles nil t
))
2717 ;;; based mostly on the bogofilter code
2718 (defun spam-check-bsfilter-headers (&optional score
)
2720 (or (nnmail-fetch-field spam-bsfilter-probability-header
)
2722 (let ((header (nnmail-fetch-field spam-bsfilter-header
)))
2723 (when header
; return nil when no header
2724 (when (string-match "YES" header
)
2725 spam-split-group
)))))
2727 ;; return something sensible if the score can't be determined
2728 (defun spam-bsfilter-score (&optional recheck
)
2729 "Get the Bsfilter spamicity score."
2731 (save-window-excursion
2732 (gnus-summary-show-article t
)
2733 (set-buffer gnus-article-buffer
)
2734 (let ((score (or (unless recheck
2735 (spam-check-bsfilter-headers t
))
2736 (spam-check-bsfilter t
))))
2737 (gnus-summary-show-article)
2738 (message "Spamicity score %s" score
)
2741 (defun spam-check-bsfilter (&optional score
)
2742 "Check the Bsfilter backend for the classification of this message."
2743 (let ((article-buffer-name (buffer-name))
2744 (dir spam-bsfilter-database-directory
)
2747 (let ((temp-buffer-name (buffer-name)))
2748 (with-current-buffer article-buffer-name
2749 (apply 'call-process-region
2750 (point-min) (point-max)
2751 spam-bsfilter-program
2752 nil temp-buffer-name nil
2755 "--insert-probability"
2757 (list "--homedir" dir
))))
2758 (setq return
(spam-check-bsfilter-headers score
))))
2761 (defun spam-bsfilter-register-with-bsfilter (articles
2763 &optional unregister
)
2764 "Register an article, given as a string, as spam or non-spam."
2765 (dolist (article articles
)
2766 (let ((article-string (spam-get-article-as-string article
))
2767 (switch (if unregister
2769 spam-bsfilter-spam-strong-switch
2770 spam-bsfilter-ham-strong-switch
)
2772 spam-bsfilter-spam-switch
2773 spam-bsfilter-ham-switch
))))
2774 (when (stringp article-string
)
2776 (insert article-string
)
2777 (apply 'call-process-region
2778 (point-min) (point-max)
2779 spam-bsfilter-program
2782 (when spam-bsfilter-database-directory
2784 spam-bsfilter-database-directory
))))))))
2786 (defun spam-bsfilter-register-spam-routine (articles &optional unregister
)
2787 (spam-bsfilter-register-with-bsfilter articles t unregister
))
2789 (defun spam-bsfilter-unregister-spam-routine (articles)
2790 (spam-bsfilter-register-spam-routine articles t
))
2792 (defun spam-bsfilter-register-ham-routine (articles &optional unregister
)
2793 (spam-bsfilter-register-with-bsfilter articles nil unregister
))
2795 (defun spam-bsfilter-unregister-ham-routine (articles)
2796 (spam-bsfilter-register-ham-routine articles t
))
2800 ;;{{{ CRM114 Mailfilter
2801 (defun spam-check-crm114-headers (&optional score
)
2802 (let ((header (message-fetch-field spam-crm114-header
)))
2803 (when header
; return nil when no header
2804 (if score
; scoring mode
2805 (if (string-match "( pR: \\([0-9.-]+\\)" header
)
2806 (match-string 1 header
)
2808 ;; spam detection mode
2809 (when (string-match spam-crm114-positive-spam-header
2811 spam-split-group
)))))
2813 ;; return something sensible if the score can't be determined
2814 (defun spam-crm114-score ()
2815 "Get the CRM114 Mailfilter pR."
2817 (save-window-excursion
2818 (gnus-summary-show-article t
)
2819 (set-buffer gnus-article-buffer
)
2820 (let ((score (or (spam-check-crm114-headers t
)
2821 (spam-check-crm114 t
))))
2822 (gnus-summary-show-article)
2823 (message "pR: %s" score
)
2826 (defun spam-check-crm114 (&optional score
)
2827 "Check the CRM114 Mailfilter backend for the classification of this message."
2828 (let ((article-buffer-name (buffer-name))
2829 (db spam-crm114-database-directory
)
2832 (let ((temp-buffer-name (buffer-name)))
2833 (with-current-buffer article-buffer-name
2834 (apply 'call-process-region
2835 (point-min) (point-max)
2837 nil temp-buffer-name nil
2838 (when db
(list (concat "--fileprefix=" db
)))))
2839 (setq return
(spam-check-crm114-headers score
))))
2842 (defun spam-crm114-register-with-crm114 (articles
2844 &optional unregister
)
2845 "Register an article, given as a string, as spam or non-spam."
2846 (dolist (article articles
)
2847 (let ((article-string (spam-get-article-as-string article
))
2848 (db spam-crm114-database-directory
)
2849 (switch (if unregister
2851 spam-crm114-spam-strong-switch
2852 spam-crm114-ham-strong-switch
)
2854 spam-crm114-spam-switch
2855 spam-crm114-ham-switch
))))
2856 (when (stringp article-string
)
2858 (insert article-string
)
2860 (apply 'call-process-region
2861 (point-min) (point-max)
2864 (when db
(list switch
(concat "--fileprefix=" db
)))))))))
2866 (defun spam-crm114-register-spam-routine (articles &optional unregister
)
2867 (spam-crm114-register-with-crm114 articles t unregister
))
2869 (defun spam-crm114-unregister-spam-routine (articles)
2870 (spam-crm114-register-spam-routine articles t
))
2872 (defun spam-crm114-register-ham-routine (articles &optional unregister
)
2873 (spam-crm114-register-with-crm114 articles nil unregister
))
2875 (defun spam-crm114-unregister-ham-routine (articles)
2876 (spam-crm114-register-ham-routine articles t
))
2885 (defun spam-initialize (&rest symbols
)
2886 "Install the spam.el hooks and do other initialization.
2887 When SYMBOLS is given, set those variables to t. This is so you
2888 can call `spam-initialize' before you set spam-use-* variables on
2889 explicitly, and matters only if you need the extra headers
2890 installed through `spam-necessary-extra-headers'."
2893 (when spam-install-hooks
2894 (dolist (var symbols
)
2897 (dolist (header (spam-necessary-extra-headers))
2898 (add-to-list 'nnmail-extra-headers header
)
2899 (add-to-list 'gnus-extra-headers header
))
2901 ;; TODO: How do we redo this every time the `spam' face is customized?
2902 (push '((eq mark gnus-spam-mark
) . spam
)
2903 gnus-summary-highlight
)
2904 ;; Add hooks for loading and saving the spam stats
2905 (add-hook 'gnus-save-newsrc-hook
'spam-maybe-spam-stat-save
)
2906 (add-hook 'gnus-get-top-new-news-hook
'spam-maybe-spam-stat-load
)
2907 (add-hook 'gnus-startup-hook
'spam-maybe-spam-stat-load
)
2908 (add-hook 'gnus-summary-prepare-exit-hook
'spam-summary-prepare-exit
)
2909 (add-hook 'gnus-summary-prepare-hook
'spam-summary-prepare
)
2910 (add-hook 'gnus-get-new-news-hook
'spam-setup-widening
)
2911 (add-hook 'gnus-summary-prepared-hook
'spam-find-spam
)
2912 ;; Don't install things more than once.
2913 (setq spam-install-hooks nil
)))
2915 (defun spam-unload-hook ()
2916 "Uninstall the spam.el hooks."
2918 (remove-hook 'gnus-save-newsrc-hook
'spam-maybe-spam-stat-save
)
2919 (remove-hook 'gnus-get-top-new-news-hook
'spam-maybe-spam-stat-load
)
2920 (remove-hook 'gnus-startup-hook
'spam-maybe-spam-stat-load
)
2921 (remove-hook 'gnus-summary-prepare-exit-hook
'spam-summary-prepare-exit
)
2922 (remove-hook 'gnus-summary-prepare-hook
'spam-summary-prepare
)
2923 (remove-hook 'gnus-get-new-news-hook
'spam-setup-widening
)
2924 (remove-hook 'gnus-summary-prepare-hook
'spam-find-spam
))
2926 (add-hook 'spam-unload-hook
'spam-unload-hook
)
2932 ;;; spam.el ends here