;;; spam.el --- Identifying spam
-;; Copyright (C) 2002 Free Software Foundation, Inc.
+;; Copyright (C) 2002, 2003 Free Software Foundation, Inc.
;; Author: Lars Magne Ingebrigtsen <larsi@gnus.org>
;; Keywords: network
:type 'boolean
:group 'spam)
+(defcustom spam-use-whitelist-exclusive nil
+ "Whether whitelist-exclusive should be used by spam-split.
+Exclusive whitelisting means that all messages from senders not in the whitelist
+are considered spam."
+ :type 'boolean
+ :group 'spam)
+
(defcustom spam-use-blackholes nil
"Whether blackholes should be used by spam-split."
:type 'boolean
:type 'boolean
:group 'spam)
+(defcustom spam-use-BBDB-exclusive nil
+ "Whether BBDB-exclusive should be used by spam-split.
+Exclusive BBDB means that all messages from senders not in the BBDB are
+considered spam."
+ :type 'boolean
+ :group 'spam)
+
(defcustom spam-use-ifile nil
"Whether ifile should be used by spam-split."
:type 'boolean
:type '(repeat (string :tag "Server"))
:group 'spam)
+(defcustom spam-blackhole-good-server-regex nil
+ "String matching IP addresses that should not be checked in the blackholes"
+ :type 'regexp
+ :group 'spam)
+
(defcustom spam-ham-marks (list 'gnus-del-mark 'gnus-read-mark
'gnus-killed-mark 'gnus-kill-file-mark
'gnus-low-score-mark)
:type 'string
:group 'spam-bogofilter)
+(defcustom spam-bogofilter-bogosity-positive-spam-header "^\\(Yes\\|Spam\\)"
+ "The regex on `spam-bogofilter-header' for positive spam identification."
+ :type 'regexp
+ :group 'spam-bogofilter)
+
(defcustom spam-bogofilter-database-directory nil
"Directory path of the Bogofilter databases."
:type '(choice (directory :tag "Location of the Bogofilter database directory")
(defun spam-summary-prepare-exit ()
;; The spam processors are invoked for any group, spam or ham or neither
+ (gnus-message 6 "Exiting summary buffer and applying spam rules")
(when (and spam-bogofilter-path
(spam-group-spam-processor-bogofilter-p gnus-newsgroup-name))
+ (gnus-message 5 "Registering spam with bogofilter")
(spam-bogofilter-register-spam-routine))
(when (and spam-ifile-path
(spam-group-spam-processor-ifile-p gnus-newsgroup-name))
+ (gnus-message 5 "Registering spam with ifile")
(spam-ifile-register-spam-routine))
(when (spam-group-spam-processor-stat-p gnus-newsgroup-name)
+ (gnus-message 5 "Registering spam with spam-stat")
(spam-stat-register-spam-routine))
(when (spam-group-spam-processor-blacklist-p gnus-newsgroup-name)
+ (gnus-message 5 "Registering spam with the blacklist")
(spam-blacklist-register-routine))
(if spam-move-spam-nonspam-groups-only
(when (not (spam-group-spam-contents-p gnus-newsgroup-name))
(spam-mark-spam-as-expired-and-move-routine
(gnus-parameter-spam-process-destination gnus-newsgroup-name)))
+ (gnus-message 5 "Marking spam as expired and moving it")
(spam-mark-spam-as-expired-and-move-routine
(gnus-parameter-spam-process-destination gnus-newsgroup-name)))
(when (spam-group-ham-contents-p gnus-newsgroup-name)
(when (spam-group-ham-processor-whitelist-p gnus-newsgroup-name)
+ (gnus-message 5 "Registering ham with the whitelist")
(spam-whitelist-register-routine))
(when (spam-group-ham-processor-ifile-p gnus-newsgroup-name)
+ (gnus-message 5 "Registering ham with ifile")
(spam-ifile-register-ham-routine))
(when (spam-group-ham-processor-bogofilter-p gnus-newsgroup-name)
+ (gnus-message 5 "Registering ham with Bogofilter")
(spam-bogofilter-register-ham-routine))
(when (spam-group-ham-processor-stat-p gnus-newsgroup-name)
+ (gnus-message 5 "Registering ham with spam-stat")
(spam-stat-register-ham-routine))
(when (spam-group-ham-processor-BBDB-p gnus-newsgroup-name)
+ (gnus-message 5 "Registering ham with the BBDB")
(spam-BBDB-register-routine)))
;; now move all ham articles out of spam groups
(when (spam-group-spam-contents-p gnus-newsgroup-name)
+ (gnus-message 5 "Moving ham messages from spam group")
(spam-ham-move-routine
(gnus-parameter-ham-process-destination gnus-newsgroup-name))))
;; check the global list of group names spam-junk-mailgroups and the
;; group parameters
(when (spam-group-spam-contents-p gnus-newsgroup-name)
+ (gnus-message 5 "Marking unread articles as spam")
(let ((articles gnus-newsgroup-articles)
article)
(while articles
(defun spam-ham-move-routine (&optional group)
(let ((articles gnus-newsgroup-articles)
article ham-mark-values mark)
+
(dolist (mark spam-ham-marks)
(push (symbol-value mark) ham-mark-values))
-
- (while articles
- (setq article (pop articles))
- (when (and (memq mark ham-mark-values)
+
+ (dolist (article articles)
+ (when (and (memq (gnus-summary-article-mark article) ham-mark-values)
(stringp group))
- (let ((gnus-current-article article))
- (gnus-summary-move-article nil group))))))
+ (let ((gnus-current-article article))
+ (gnus-summary-move-article nil group))))))
(defun spam-generic-register-routine (spam-func ham-func)
(let ((articles gnus-newsgroup-articles)
"The spam-list-of-checks list contains pairs associating a parameter
variable with a spam checking function. If the parameter variable is
true, then the checking function is called, and its value decides what
-happens. Each individual check may return `nil', `t', or a mailgroup
-name. The value `nil' means that the check does not yield a decision,
-and so, that further checks are needed. The value `t' means that the
+happens. Each individual check may return nil, t, or a mailgroup
+name. The value nil means that the check does not yield a decision,
+and so, that further checks are needed. The value t means that the
message is definitely not spam, and that further spam checks should be
inhibited. Otherwise, a mailgroup name is returned where the mail
should go, and further checks are also inhibited. The usual mailgroup
(while (and list-of-checks (not decision))
(let ((pair (pop list-of-checks)))
(when (symbol-value (car pair))
+ (gnus-message 5 "spam-split: calling the %s function" (symbol-name (cdr pair)))
(setq decision (funcall (cdr pair))))))
(if (eq decision t)
nil
(with-temp-buffer
(insert headers)
(goto-char (point-min))
+ (gnus-message 5 "Checking headers for relay addresses")
(while (re-search-forward
"\\[\\([0-9]+.[0-9]+.[0-9]+.[0-9]+\\)\\]" nil t)
- (message "Blackhole search found host IP %s." (match-string 1))
+ (gnus-message 9 "Blackhole search found host IP %s." (match-string 1))
(push (mapconcat 'identity
(nreverse (split-string (match-string 1) "\\."))
".")
ips)))
(dolist (server spam-blackhole-servers)
(dolist (ip ips)
- (let ((query-string (concat ip "." server)))
- (if spam-use-dig
- (let ((query-result (query-dig query-string)))
- (when query-result
- (message "spam: positive blackhole check '%s'" query-result)
- (push (list ip server query-result)
- matches)))
- ;; else, if not using dig.el
- (when (query-dns query-string)
- (push (list ip server (query-dns query-string 'TXT))
- matches)))))))
+ (unless (and spam-blackhole-good-server-regex
+ (string-match spam-blackhole-good-server-regex ip))
+ (let ((query-string (concat ip "." server)))
+ (if spam-use-dig
+ (let ((query-result (query-dig query-string)))
+ (when query-result
+ (gnus-message 5 "(DIG): positive blackhole check '%s'" query-result)
+ (push (list ip server query-result)
+ matches)))
+ ;; else, if not using dig.el
+ (when (query-dns query-string)
+ (gnus-message 5 "positive blackhole check")
+ (push (list ip server (query-dns query-string 'TXT))
+ matches))))))))
(when matches
spam-split-group)))
\f
(let* ((parsed-address (gnus-extract-address-components from))
(name (or (car parsed-address) "Ham Sender"))
(net-address (car (cdr parsed-address))))
- (message "Adding address %s to BBDB" from)
+ (gnus-message 5 "Adding address %s to BBDB" from)
(when (and net-address
(not (bbdb-search-simple nil net-address)))
(bbdb-create-internal name nil net-address nil nil
(spam-enter-ham-BBDB (spam-fetch-field-from-fast article)))))
(defun spam-check-BBDB ()
- "Mail from people in the BBDB is never considered spam"
+ "Mail from people in the BBDB is classified as ham or non-spam"
(let ((who (message-fetch-field "from")))
(when who
- (setq who (regexp-quote (cadr
- (gnus-extract-address-components who))))
+ (setq who (cadr (gnus-extract-address-components who)))
(if (bbdb-search-simple nil who)
- nil spam-split-group)))))
+ t
+ (if spam-use-BBDB-exclusive
+ spam-split-group
+ nil))))))
(file-error (progn
(defalias 'bbdb-search-simple 'ignore)
(insert address "\n")
(save-buffer)))
-;;; returns nil if the sender is in the whitelist, spam-split-group otherwise
+;;; returns t if the sender is in the whitelist, nil or spam-split-group otherwise
(defun spam-check-whitelist ()
;; FIXME! Should it detect when file timestamps change?
(unless spam-whitelist-cache
(setq spam-whitelist-cache (spam-parse-list spam-whitelist)))
- (if (spam-from-listed-p spam-whitelist-cache) nil spam-split-group))
+ (if (spam-from-listed-p spam-whitelist-cache)
+ t
+ (if spam-use-whitelist-exclusive
+ spam-split-group
+ nil)))
(defun spam-check-blacklist ()
;; FIXME! Should it detect when file timestamps change?
(defun spam-check-bogofilter-headers (&optional score)
(let ((header (message-fetch-field spam-bogofilter-header)))
(when (and header
- (string-match "^Yes" header))
+ (string-match spam-bogofilter-bogosity-positive-spam-header
+ header))
(if score
(when (string-match "spamicity=\\([0-9.]+\\)" header)
(match-string 1 header))
spam-split-group))))
-
;; return something sensible if the score can't be determined
(defun spam-bogofilter-score ()
projects / gnus / blobdiff