2 ;;;; $Id: logger.lisp,v 1.11 2003/12/16 21:19:56 krosenberg Exp $
4 ;;;; Purpose: A IRC logging bot
5 ;;;; Author: Kevin Rosenberg
7 (in-package irc-logger)
9 (defvar *daemon-monitor-process* nil "Process of background monitor.")
12 ((name :initarg :name :reader name
13 :documentation "Name of channel.")
14 (streams :initarg :streams :reader streams
15 :documentation "List of output streams.")
16 (output-root :initarg :output-root :reader output-root)
17 (current-output-names :initarg :current-output-names :accessor current-output-names)))
21 ((connection :initarg :connection :accessor connection
22 :documentation "IRC connection object.")
23 (handler :initform nil :accessor handler
24 :documentation "Background handler process.")
25 (nick :initarg :nick :reader nickname
26 :documentation "Nickname of the bot.")
27 (password :initarg :password :reader password
28 :documentation "Nickname's nickserver password.")
29 (server :initarg :server :reader server
30 :documentation "Connected IRC server.")
31 (channel-names :initarg :channel-names :accessor channel-names
32 :documentation "List of channel names.")
33 (realname :initarg :realname :reader realname
34 :documentation "Realname for cl-irc")
35 (username :initarg :username :reader username
36 :documentation "Username for cl-irc")
37 (logging-stream :initarg :logging-stream :reader logging-stream
38 :documentation "logging-stream for cl-irc.")
39 (channels :initarg :channels :accessor channels
40 :documentation "List of channels.")
41 (user-output :initarg :user-output :reader user-output
43 "Output parameter from user, maybe stream or pathname.")
44 (unichannel :initarg :unichannel :reader unichannel :type boolean
45 :documentation "T if user-output is directory for individual channel output.")
46 (formats :initarg :formats :reader formats
48 "A list of output formats.")
49 (async :initarg :async :reader async
51 "Whether to use async")
52 (last-pong :initform nil :accessor last-pong
54 "utime of last pong message")
55 (private-log :initarg :private-log :reader private-log
56 :documentation "Pathname of the private log file for the daemon.")
57 (unknown-log :initarg :unknown-log :reader unknown-log
58 :documentation "Pathname of the log file for unknown messages.")
59 (private-log-stream :initarg :private-log-stream :reader private-log-stream
60 :documentation "Stream of the private log file for the daemon.")
61 (unknown-log-stream :initarg :unknown-log-stream :reader unknown-log-stream
62 :documentation "Stream of the log file for unknown messages.")
63 (monitor-events :initform nil :accessor monitor-events
64 :documentation "List of events for the monitor to process.")
65 (warning-message-utime :initform nil :accessor warning-message-utime
67 "Time of last, potentially active, warning message.")))
69 (defvar *loggers* nil "List of active loggers.")
71 (defparameter *user-address-scanner*
75 (:greedy-repetition 1 nil :non-whitespace-char-class)))
76 :case-insensitive-mode t))
78 (defun find-logger-with-nick (nick)
79 (find nick (the list *loggers*) :test #'string-equal :key #'nickname))
81 (defun find-logger-with-connection (conn)
82 (find conn (the list *loggers*) :test #'eq :key #'connection))
84 (defun canonicalize-channel-name (name)
85 (string-left-trim '(#\#) name))
87 (defun find-channel-with-name (logger name)
88 (find name (the list (channels logger)) :test #'string-equal :key #'name))
90 (defun make-output-name (name year month day)
91 (format nil "~A-~4,'0D.~2,'0D.~2,'0D" (canonicalize-channel-name name)
94 (defun make-output-name-utime (name utime)
96 (second minute hour day-of-month month year day-of-week daylight-p zone)
97 (decode-universal-time utime)
98 (declare (ignore second minute hour day-of-week daylight-p zone))
99 (make-output-name name year month day-of-month)))
101 (defgeneric write-file-header (format channel-name stream))
103 (defmethod write-file-header ((format t) channel-name stream)
104 (declare (ignore channel-name stream))
107 (defgeneric write-file-footer (format channel-name stream))
109 (defmethod write-file-footer ((format t) channel-name stream)
110 (declare (ignore channel-name stream))
113 (defun %log-file-path (output-root channel-name year month day type)
115 :defaults output-root
116 :directory (append (pathname-directory output-root)
118 (string-left-trim '(#\#) channel-name)
119 (format nil "~4,'0D-~2,'0D" year month)))
120 :name (make-output-name channel-name year month day)
123 (defgeneric log-file-path (output-root channel-name year month day format))
125 (defmethod log-file-path (output-root channel-name year month day
127 (%log-file-path output-root channel-name year month day "raw"))
129 (defmethod log-file-path (output-root channel-name year month day (format (eql :sexp)))
130 (%log-file-path output-root channel-name year month day "sexp"))
132 (defmethod log-file-path (output-root channel-name year month day (format (eql :text)))
133 (%log-file-path output-root channel-name year month day "txt"))
135 (defmethod log-file-path (output-root channel-name year month day (format string))
136 (%log-file-path output-root channel-name year month day format))
139 (defun log-file-path-utime (output-root channel-name format utime)
141 (second minute hour day month year day-of-week daylight-p zone)
142 (decode-universal-time utime)
143 (declare (ignore second minute hour day-of-week daylight-p zone))
144 (log-file-path output-root channel-name year month day format)))
146 (defun get-stream (channel istream)
147 (elt (streams channel) istream))
149 (defun (setf get-stream) (value channel istream)
150 (setf (elt (streams channel) istream) value))
152 (defun get-format (logger istream)
153 (elt (formats logger) istream))
155 (defun get-output-name (channel istream)
156 (elt (current-output-names channel) istream))
158 (defun (setf get-output-name) (value channel istream)
159 (setf (elt (current-output-names channel) istream) value))
161 (defun ensure-output-stream-for-unichannel (utime logger channel istream)
162 (let ((name (make-output-name-utime (name channel) utime)))
163 (unless (string= name (get-output-name channel istream))
164 (when (get-stream channel istream)
165 (write-file-footer (get-format logger istream)
167 (get-stream channel istream))
168 (close (get-stream channel istream)))
169 (setf (get-output-name channel istream) name)
170 (let ((path (log-file-path-utime (output-root channel) (name channel)
171 (get-format logger istream) utime)))
172 (unless (probe-file path)
173 (ensure-directories-exist path)
174 (setf (get-stream channel istream)
175 (open path :direction :output :if-exists :error
176 :if-does-not-exist :create))
177 (write-file-header (get-format logger istream)
179 (get-stream channel istream))
180 (close (get-stream channel istream)))
181 (setf (get-stream channel istream)
182 (open path :direction :output :if-exists :append
183 :if-does-not-exist :create))))))
185 (defun ensure-output-stream (utime logger channel istream)
186 "Ensures that *output-stream* is correct."
188 ((streamp (user-output logger))
189 (unless (get-stream channel istream)
190 (setf (get-stream channel istream) (user-output logger))))
191 ((pathnamep (user-output logger))
194 (ensure-output-stream-for-unichannel utime logger channel istream))
196 (setf (get-stream channel istream)
197 (open (user-output logger) :direction :output :if-exists :append
198 :if-does-not-exist :create)))))))
200 (defun format-date-time (utime)
202 (second minute hour day-of-month month year day-of-week daylight-p zone)
203 (decode-universal-time utime)
204 (declare (ignore day-of-week daylight-p zone))
205 (format nil "~4,'0D/~2,'0D/~2,'0D ~2,'0D:~2,'0D:~2,'0D" year month day-of-month hour minute second)))
207 (defun format-utime (utime)
209 (second minute hour day-of-month month year day-of-week daylight-p zone)
210 (decode-universal-time utime)
211 (declare (ignore day-of-month month year day-of-week daylight-p zone))
212 (format nil "~2,'0D:~2,'0D:~2,'0D" hour minute second)))
214 (defun format-utime-short (utime)
216 (second minute hour day-of-month month year day-of-week daylight-p zone)
217 (decode-universal-time utime)
218 (declare (ignore second day-of-month month year day-of-week daylight-p zone))
219 (format nil "~2,'0D:~2,'0D" hour minute)))
221 (defun user-address (msg)
222 (let ((split (split *user-address-scanner* (raw-message-string msg)
223 :with-registers-p t)))
228 (defun need-user-address? (type)
230 ((:action :privmsg :names :rpl_topic)
235 (defgeneric %output-event (format stream utime type channel source text msg
238 (defmethod %output-event ((format t) stream utime type channel source text
240 (%output-event :raw stream utime type channel source text msg unichannel))
242 (defmethod %output-event ((format (eql :raw)) stream utime type channel source
244 (declare (ignore utime type channel source text text unichannel))
246 (format stream "~S~%"
247 (string-right-trim '(#\return) (raw-message-string msg)))))
249 (defconstant +posix-epoch+
250 (encode-universal-time 0 0 0 1 1 1970 0))
252 (defun posix-time-to-utime (time)
253 (+ time +posix-epoch+))
255 (defun last-sexp-field (type msg)
260 (trailing-argument msg))
261 ((eq type :rpl_topicwhotime)
262 (when (stringp (car (last (arguments msg))))
263 (let ((secs (parse-integer (car (last (arguments msg))) :junk-allowed t)))
265 (posix-time-to-utime secs)))))
266 ((need-user-address? type)
267 (user-address msg))))
269 (defmethod %output-event ((format (eql :sexp)) stream utime type channel source text
271 (with-standard-io-syntax
272 (let ((cl:*print-case* :downcase))
274 (format stream "(~S ~S ~S ~S ~S)~%" utime type source text (last-sexp-field type msg))
275 (format stream "(~S ~S ~S ~S ~S ~S)~%" utime type source channel text
276 (last-sexp-field type msg))))))
278 (defmethod %output-event ((format (eql :text)) stream utime type channel
279 source text msg unichannel)
280 (format stream "~A " (format-utime utime))
281 (when (and (null unichannel) channel)
282 (format stream "[~A] " channel))
284 (let ((user-address (when (and msg (need-user-address? type)) (user-address msg))))
287 (format stream "<~A> ~A" source text))
289 (format stream "*~A* ~A" source text))
291 (format stream "~A [~A] has joined ~A" source user-address channel))
293 (format stream "-!- ~A [~A] has left ~A" source user-address channel))
295 (format stream "-!- ~A is now known as ~A" source text))
297 (format stream "-!- ~A [~A] has been kicked from ~A" source user-address channel))
299 (format stream "-!- ~A [~A] has quit [~A]" source user-address (if text text "")))
301 (format stream "-!- ~A has set mode ~A" source text))
303 (format stream "-!- ~A changed the topic of ~A to: ~A" source channel text))
305 (format stream "-~A:~A- ~A" source channel text))
307 (format stream "-!!!- ~A" text))
309 (format stream "-!- names: ~A" text))
311 (format stream "-!- topic: ~A" text))
313 (warn "Unhandled msg type ~A." type))))
314 (write-char #\Newline stream))
316 (defun output-event-for-a-stream (msg type channel text logger istream)
317 (ensure-output-stream (received-time msg) logger channel istream)
318 (%output-event (get-format logger istream) (get-stream channel istream)
319 (received-time msg) type (name channel) (source msg) text msg
321 (force-output (get-stream channel istream)))
323 (defun log-daemon-message (logger fmt &rest args)
324 (let ((text (apply #'format nil fmt args))
325 (time (get-universal-time)))
326 (format (get-private-log-stream logger)
327 "~A ~A~%" (format-date-time time) text)
328 (force-output (get-private-log-stream logger))
329 (dolist (channel (channels logger))
330 (dotimes (istream (length (formats logger)))
331 (ensure-output-stream time logger channel istream)
332 (%output-event (get-format logger istream)
333 (get-stream channel istream)
334 time :daemon nil nil text nil
336 (force-output (get-stream channel istream))))))
339 (defun output-event (msg type channel-name &optional text)
341 (dolist (logger *loggers*)
343 ((:error :server :kill)
344 (format (get-private-log-stream logger)
346 (format-date-time (received-time msg))
347 (raw-message-string msg))
348 (force-output (get-private-log-stream logger)))
350 ;; send to all channels that a nickname is joined
351 (let* ((user (find-user (connection logger)
354 (:quit (source msg)))))
355 (channels (when user (cl-irc::channels user))))
356 (dolist (channel (mapcar
357 #'(lambda (name) (find-channel-with-name logger name))
358 (mapcar #'cl-irc::name channels)))
360 (dotimes (i (length (formats logger)))
361 (output-event-for-a-stream msg type channel text logger i))))))
363 ;; msg contains channel name
364 (let* ((channel (find-channel-with-name logger channel-name)))
366 (dotimes (i (length (formats logger)))
367 (output-event-for-a-stream msg type channel text logger i))))))))
369 (defun get-private-log-stream (logger)
370 (if (and logger (private-log-stream logger))
371 (private-log-stream logger)
374 (defun get-unknown-log-stream (logger)
375 (if (and logger (unknown-log-stream logger))
376 (unknown-log-stream logger)
379 (defun privmsg-hook (msg)
380 (let ((logger (find-logger-with-connection (connection msg)))
381 (channel (first (arguments msg))))
383 ((equal channel (nickname logger))
385 (get-private-log-stream logger)
387 (format-date-time (get-universal-time))
388 (raw-message-string msg))
389 (force-output (get-private-log-stream logger)))
391 (output-event msg :privmsg channel (trailing-argument msg))))))
393 (defun action-hook (msg)
394 (output-event msg :action (first (arguments msg))
395 (subseq (trailing-argument msg) 8
396 (- (length (trailing-argument msg)) 1))))
398 (defun nick-hook (msg)
399 (output-event msg :nick nil (trailing-argument msg)))
401 (defun part-hook (msg)
402 (output-event msg :part (first (arguments msg))))
404 (defun quit-hook (msg)
405 (output-event msg :quit nil (trailing-argument msg)))
407 (defun join-hook (msg)
408 (output-event msg :join (trailing-argument msg)))
410 (defun kick-hook (msg)
411 (let ((logger (find-logger-with-connection (connection msg)))
412 (channel (first (arguments msg)))
413 (who-kicked (second (arguments msg))))
414 (output-event msg :kick channel who-kicked)
415 (when (string-equal (nickname logger) who-kicked)
417 (get-private-log-stream logger)
418 "~A Logging daemon ~A has been kicked from ~A (~A)~%"
419 (format-date-time (received-time msg))
422 (trailing-argument msg))
423 (force-output (get-private-log-stream logger))
425 (remove-channel-logger logger channel)
427 (add-channel-logger logger channel)
429 (get-private-log-stream logger)
431 (format-date-time (received-time msg))
433 (force-output (get-private-log-stream logger)))))
435 (defun notice-hook (msg)
436 (let ((logger (find-logger-with-connection (connection msg)))
437 (channel (first (arguments msg))))
439 ((and (string-equal (source msg) "NickServ")
440 (string-equal channel (nickname logger))
441 (string-equal "owned by someone else" (trailing-argument msg)))
443 (privmsg (connection msg) (source msg) (format nil "IDENTIFY ~A" (password logger)))
445 (get-private-log-stream logger)
446 "~A NickServ asks for identity with connection not found.~%"
447 (format-date-time (received-time msg)))))
448 ((equal channel (nickname logger))
450 (get-private-log-stream logger)
452 (format-date-time (get-universal-time))
453 (raw-message-string msg))
454 (force-output (get-private-log-stream logger)))
456 (output-event msg :notice channel (trailing-argument msg))))))
458 (defun ping-hook (msg)
459 (let ((logger (find-logger-with-connection (connection msg))))
460 (pong (connection msg) (server logger))
461 #+debug (format *standard-output* "Sending pong to ~A~%" (server logger))))
463 (defun pong-hook (msg)
464 (let ((logger (find-logger-with-connection (connection msg))))
465 (setf (last-pong logger) (received-time msg))))
467 (defun topic-hook (msg)
468 (output-event msg :topic (first (arguments msg)) (trailing-argument msg)))
470 (defun mode-hook (msg)
471 (output-event msg :mode (first (arguments msg))
472 (format nil "~{~A~^ ~}" (cdr (arguments msg)))))
474 (defun rpl_namreply-hook (msg)
475 (output-event msg :names (third (arguments msg))
476 (trailing-argument msg)))
478 (defun rpl_endofnames-hook (msg)
479 (declare (ignore msg))
480 ;; nothing to do for this message
483 (defun rpl_topic-hook (msg)
484 (output-event msg :rpl_topic (format nil "~{~A~^ ~}" (arguments msg))
485 (trailing-argument msg)))
487 (defun rpl_topicwhotime-hook (msg)
488 (output-event msg :rpl_topicwhotime
489 (second (arguments msg))
490 (third (arguments msg))))
493 (defun invite-hook (msg)
494 (let ((logger (find-logger-with-connection (connection msg))))
496 (get-private-log-stream logger)
498 (format-date-time (get-universal-time))
499 (raw-message-string msg))
500 (force-output (get-private-log-stream logger))))
503 (defun make-a-channel (name formats output)
504 (make-instance 'channel
506 :streams (make-array (length formats) :initial-element nil)
507 :output-root (when (and (pathnamep output)
508 (null (pathname-name output)))
510 :current-output-names (make-array (length formats)
511 :initial-element nil)))
513 (defun make-channels (names formats output)
514 (loop for i from 0 to (1- (length names))
515 collect (make-a-channel (elt names i) formats output)))
517 (defun is-unichannel-output (user-output)
518 "Returns T if output is setup for a single channel directory structure."
519 (and (pathnamep user-output) (null (pathname-name user-output))))
521 (defun do-connect-and-join (nick server username realname logging-stream channels)
522 (let ((conn (connect :nickname nick :server server
523 :username username :realname realname
524 :logging-stream logging-stream)))
525 (mapc #'(lambda (channel) (join conn channel)) channels)
526 (add-hook conn 'irc::irc-privmsg-message 'privmsg-hook)
527 (add-hook conn 'irc::ctcp-action-message 'action-hook)
528 (add-hook conn 'irc::irc-nick-message 'nick-hook)
529 (add-hook conn 'irc::irc-part-message 'part-hook)
530 (add-hook conn 'irc::irc-quit-message 'quit-hook)
531 (add-hook conn 'irc::irc-join-message 'join-hook)
532 (add-hook conn 'irc::irc-kick-message 'kick-hook)
533 (add-hook conn 'irc::irc-mode-message 'mode-hook)
534 (add-hook conn 'irc::irc-topic-message 'topic-hook)
535 (add-hook conn 'irc::irc-notice-message 'notice-hook)
536 (add-hook conn 'irc::irc-error-message 'error-hook)
537 (add-hook conn 'irc::irc-ping-message 'ping-hook)
538 (add-hook conn 'irc::irc-pong-message 'pong-hook)
539 (add-hook conn 'irc::irc-kill-message 'kill-hook)
540 (add-hook conn 'irc::irc-invite-message 'invite-hook)
541 (add-hook conn 'irc::irc-rpl_killdone-message 'warning-hook)
542 (add-hook conn 'irc::irc-rpl_closing-message 'warning-hook)
543 (add-hook conn 'irc::irc-rpl_topic-message 'rpl_topic-hook)
544 (add-hook conn 'irc::irc-rpl_namreply-message 'rpl_namreply-hook)
545 (add-hook conn 'irc::irc-rpl_endofnames-message 'rpl_endofnames-hook)
546 (add-hook conn 'irc::irc-rpl_topicwhotime-message 'rpl_topicwhotime-hook)
549 (defmethod cl-irc::irc-message-event :around ((msg cl-irc::irc-message))
550 (let ((result (call-next-method msg)))
552 ((or irc::irc-privmsg-message irc::ctcp-action-message irc::irc-nick-message
553 irc::irc-part-message irc::irc-quit-message irc::irc-join-message
554 irc::irc-kick-message irc::irc-mode-message irc::irc-topic-message
555 irc::irc-notice-message irc::irc-error-message irc::irc-ping-message
556 irc::irc-pong-message irc::irc-kill-message irc::irc-invite-message
557 irc::irc-rpl_killdone-message irc::irc-rpl_closing-message
558 irc::irc-rpl_topic-message irc::irc-rpl_namreply-message
559 irc::irc-rpl_endofnames-message irc::irc-rpl_topicwhotime-message
560 irc::irc-rpl_motd-message irc::irc-rpl_motdstart-message
561 irc::irc-rpl_endofmotd-message)
565 (let ((logger (find-logger-with-connection (connection msg))))
566 (format (get-unknown-log-stream
567 (find-logger-with-connection (connection msg)))
569 (format-date-time (received-time msg ))
570 (raw-message-string msg))
571 (force-output (get-unknown-log-stream logger)))))
574 (defun create-logger (nick server &key channels output password
575 realname username async
576 private-log unknown-log
577 (logging-stream t) (formats '(:text)))
578 "OUTPUT may be a pathname or a stream"
581 (if (and channels (atom channels))
582 (setq channels (list channels)))
584 (setq formats (list formats)))
586 (setq output (parse-namestring output)))
587 (let* ((conn (do-connect-and-join nick server username realname logging-stream channels))
588 (logger (make-instance
594 :channels (make-channels channels formats output)
595 :channel-names channels
599 :logging-stream logging-stream
602 :private-log private-log
603 :unknown-log unknown-log
604 :private-log-stream (when private-log
605 (open private-log :direction :output
607 :if-does-not-exist :create))
608 :unknown-log-stream (when unknown-log
609 (open unknown-log :direction :output
611 :if-does-not-exist :create))
612 :unichannel (is-unichannel-output output))))
613 (unless *daemon-monitor-process*
614 (setq *daemon-monitor-process* (cl-irc::start-process 'daemon-monitor "logger-monitor")))
617 (defun start-logger (logger async)
619 (setf (handler logger)
620 (start-background-message-handler (connection logger)))
621 (read-message-loop (connection logger))))
623 (defun remove-logger (nick)
624 "Quit the active connection with nick and remove from active list."
625 (let ((logger (find-logger-with-nick nick)))
629 "~A No active connection found with nick ~A [remove-logger].~%"
630 (format-date-time (get-universal-time))
634 (ignore-errors (irc:quit (connection logger) ""))
635 (stop-background-message-handler (handler logger))
637 (dolist (channel (channels logger))
638 (let ((c (connection logger)))
640 (ignore-errors (remove-channel c (find-channel c (name channel)))))))
641 (when (private-log-stream logger)
642 (close (private-log-stream logger)))
643 (when (unknown-log-stream logger)
644 (close (unknown-log-stream logger)))
647 (delete nick *loggers* :test #'string-equal :key #'nickname))
650 (defun add-logger (nick server &key channels output (password "")
651 realname username private-log unknown-log
652 (logging-stream t) (async t)
654 (when (find-logger-with-nick nick)
656 (get-private-log-stream (find-logger-with-nick nick))
657 "~A Closing previously active connection [add-logger].~%"
658 (format-date-time (get-universal-time)))
659 (ignore-errors (remove-logger nick)))
660 (let ((logger (create-logger nick server :channels channels :output output
661 :logging-stream logging-stream :password password
662 :realname realname :username username
663 :private-log private-log
664 :unknown-log unknown-log
667 (push logger *loggers*)
668 (start-logger logger async)
671 (defun add-channel-logger (logger channel-name)
673 ((find-channel-with-name logger channel-name)
674 (format (get-private-log-stream logger)
675 "~A Channel ~A already in logger ~A.~%"
676 (format-date-time (get-universal-time))
678 (force-output (get-private-log-stream logger))
681 (let ((channel (make-a-channel channel-name (formats logger) (user-output logger))))
682 (join (connection logger) channel-name)
683 (push channel (channels logger))
684 (push channel-name (channel-names logger))))))
686 (defun remove-channel-logger (logger channel-name)
687 (let ((channel (find-channel-with-name logger channel-name)))
690 (part (connection logger) channel-name)
691 (dotimes (i (length (streams channel)))
692 (when (streamp (get-stream channel i))
693 (close (get-stream channel i))
694 (setf (get-stream channel i) nil)))
695 (setf (channels logger) (delete channel-name (channels logger)
698 (setf (channel-names logger) (delete channel-name (channel-names logger)
699 :test #'string-equal))
703 (get-private-log-stream logger)
704 "~A Channel name ~A not found in logger ~A.~%"
705 (format-date-time (get-universal-time))
709 (defun add-hook-logger (logger class hook)
710 (add-hook (connection logger) class hook))
712 (defun remove-hook-logger (logger class hook)
713 (remove-hook (connection logger) class hook))
715 (defvar *warning-message-utime* nil)
717 (defun kill-hook (msg)
718 (let ((target (second (arguments msg)))
719 (logger (find-logger-with-connection (connection msg))))
720 (when (and (stringp target)
721 (string-equal target (nickname logger)))
722 (setf (warning-message-utime logger) (received-time msg)))
723 (format (get-private-log-stream logger)
725 (format-date-time (received-time msg))
727 (force-output (get-private-log-stream logger))))
729 (defun error-hook (msg)
730 (let ((text (trailing-argument msg))
731 (logger (find-logger-with-connection (connection msg))))
732 (when (and (stringp text)
733 (zerop (search (format nil "Closing Link: ~A" (nickname logger)) text)))
734 (setf (warning-message-utime logger) (received-time msg)))
735 (output-event msg :error nil (trailing-argument msg))))
737 (defun warning-hook (msg)
738 (let ((logger (find-logger-with-connection (connection msg))))
739 (output-event msg :server
740 (format nil "~{~A~^ ~} ~A)"
742 (trailing-argument msg)))
744 (setf (warning-message-utime logger) (get-universal-time)))))
746 (defun daemon-sleep (seconds)
747 #-allegro (sleep seconds)
748 #+allegro (mp:process-sleep seconds))
750 (defun log-disconnection (logger)
751 ;; avoid generating too many reconnect messages in the logs
752 (when (or (null (warning-message-utime logger))
753 (< (- (get-universal-time) (warning-message-utime logger)) 300))
754 (log-daemon-message logger "Disconnected. Attempting reconnection at ~A."
755 (format-date-time (get-universal-time)))))
757 (defun log-reconnection (logger)
760 "Connection restablished at ~A." (format-date-time (get-universal-time))))
762 (defun is-connected (logger)
763 (when (ignore-errors (ping (connection logger) (server logger)))
765 (when (and (last-pong logger)
766 (< (- (get-universal-time) (last-pong logger)) 21))
767 (return-from is-connected t))
771 (let (*recon-nick* *recon-server* *recon-username* *recon-realname*
772 *recon-user-output* *recon-private-log* *recon-unknown-log*
773 *recon-formats* *recon-async* *recon-logging-stream* *recon-channel-names*)
774 (declare (special *recon-nick* *recon-server* *recon-username* *recon-realname*
775 *recon-formats* *recon-password* *recon-async*
776 *recon-user-output* *recon-private-log* *recon-unknown-log*
777 *recon-logging-stream* *recon-channel-names*))
779 (defun attempt-reconnection (logger)
780 (when (is-connected logger)
781 (return-from attempt-reconnection nil))
783 (log-disconnection logger)
784 (when (connection logger)
785 (ignore-errors (quit (connection logger) "Client terminated by server"))
786 (setf *recon-nick* (nickname logger)
787 *recon-server* (server logger)
788 *recon-username* (username logger)
789 *recon-realname* (realname logger)
790 *recon-password* (password logger)
791 *recon-async* (async logger)
792 *recon-user-output* (user-output logger)
793 *recon-private-log* (private-log logger)
794 *recon-unknown-log* (unknown-log logger)
795 *recon-formats* (formats logger)
796 *recon-logging-stream* (logging-stream logger)
797 *recon-channel-names* (channel-names logger))
798 (ignore-errors (remove-logger logger)))
802 (add-logger *recon-nick* *recon-server*
803 :channels *recon-channel-names*
804 :output *recon-user-output*
805 :password *recon-password*
806 :realname *recon-realname*
807 :username *recon-username*
808 :logging-stream *recon-logging-stream*
809 :private-log *recon-private-log*
810 :unknown-log *recon-unknown-log*
812 :formats *recon-formats*))))
815 (when (is-connected new-logger)
816 (log-reconnection new-logger)))))
820 (defun daemon-monitor ()
821 "This function runs in the background and monitors the connection of the logger."
826 (dolist (logger *loggers*)
827 (do ((warning-time (warning-message-utime logger) (warning-message-utime logger)))
828 ((or (is-connected logger) (null warning-time)))
830 ((and warning-time (> (- (get-universal-time) warning-time) 180))
831 ;;give up frequent checking because no disconnection despite waiting
832 (setf (warning-message-utime logger) nil))
833 ((not (is-connected logger))
835 (setf (warning-message-utime logger) (get-universal-time)))
836 (attempt-reconnection logger)
837 ;;after a succesful reconnection, the value of logger will be invalid
839 (return-from main-loop))
841 (daemon-sleep 30)))))
843 ((or (>= i 20) (some (lambda (logger) (warning-message-utime logger)) *loggers*)))
844 (daemon-sleep 15)))))