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.")
10 (defparameter *timeout* 60)
13 ((name :initarg :name :reader c-name
14 :documentation "Name of channel.")
15 (streams :initarg :streams :reader streams
16 :documentation "List of output streams.")
17 (output-root :initarg :output-root :reader output-root)
18 (current-output-names :initarg :current-output-names :accessor current-output-names)))
22 ((connection :initarg :connection :accessor connection
23 :documentation "IRC connection object.")
24 (handler :initform nil :accessor handler
25 :documentation "Background handler process.")
26 (nick :initarg :nick :reader l-nickname
27 :documentation "Nickname of the bot.")
28 (password :initarg :password :reader password
29 :documentation "Nickname's nickserver password.")
30 (server :initarg :server :reader server
31 :documentation "Connected IRC server.")
32 (channel-names :initarg :channel-names :accessor channel-names
33 :documentation "List of channel names.")
34 (realname :initarg :realname :reader l-realname
35 :documentation "Realname for cl-irc")
36 (username :initarg :username :reader l-username
37 :documentation "Username for cl-irc")
38 (logging-stream :initarg :logging-stream :reader logging-stream
39 :documentation "logging-stream for cl-irc.")
40 (channels :initarg :channels :accessor channels
41 :documentation "List of channels.")
42 (user-output :initarg :user-output :reader user-output
44 "Output parameter from user, maybe stream or pathname.")
45 (unichannel :initarg :unichannel :reader unichannel :type boolean
46 :documentation "T if user-output is directory for individual channel output.")
47 (formats :initarg :formats :reader formats
49 "A list of output formats.")
50 (async :initarg :async :reader async
52 "Whether to use async")
53 (last-pong :initform nil :accessor last-pong
55 "utime of last pong message")
56 (private-log :initarg :private-log :reader private-log
57 :documentation "Pathname of the private log file for the daemon.")
58 (unknown-log :initarg :unknown-log :reader unknown-log
59 :documentation "Pathname of the log file for unknown messages.")
60 (private-log-stream :initarg :private-log-stream :reader private-log-stream
61 :documentation "Stream of the private log file for the daemon.")
62 (unknown-log-stream :initarg :unknown-log-stream :reader unknown-log-stream
63 :documentation "Stream of the log file for unknown messages.")
64 (monitor-events :initform nil :accessor monitor-events
65 :documentation "List of events for the monitor to process.")
66 (warning-message-utime :initform nil :accessor warning-message-utime
68 "Time of last, potentially active, warning message.")))
70 (defmethod print-object ((obj logger) stream)
71 (print-unreadable-object (obj stream :type t :identity t)
72 (format stream "~A" (l-nickname obj))))
74 (defvar *loggers* nil "List of active loggers.")
76 (defparameter *user-address-scanner*
80 (:greedy-repetition 1 nil :non-whitespace-char-class)))
81 :case-insensitive-mode t))
83 (defun find-logger-with-nick (nick)
84 (find nick (the list *loggers*) :test #'string-equal :key #'l-nickname))
86 (defun find-logger-with-connection (conn)
87 (find conn (the list *loggers*) :test #'eq :key #'connection))
89 (defun canonicalize-channel-name (name)
90 (string-left-trim '(#\#) name))
92 (defun find-channel-with-name (logger name)
93 (find name (the list (channels logger)) :test #'string-equal :key #'c-name))
95 (defun make-output-name (name year month day)
96 (format nil "~A-~4,'0D.~2,'0D.~2,'0D" (canonicalize-channel-name name)
99 (defmacro with-decoding ((utime &optional zone) &body body)
100 `(multiple-value-bind
101 (second minute hour day-of-month month year day-of-week daylight-p zone)
102 (decode-universal-time ,utime ,@(if zone (list zone)))
103 (declare (ignorable second minute hour day-of-month month year day-of-week daylight-p zone))
106 (defun format-utime (utime &optional zone)
107 (with-decoding (utime zone)
108 (format nil "~2,'0D:~2,'0D:~2,'0D" hour minute second)))
110 (defun format-date-time (utime &key stream)
111 (with-decoding (utime)
112 (format stream "~4,'0D/~2,'0D/~2,'0D ~2,'0D:~2,'0D:~2,'0D" year month day-of-month hour minute second)))
114 (defun make-output-name-utime (name utime)
115 (with-decoding (utime 0)
116 (make-output-name name year month day-of-month)))
118 (defgeneric write-file-header (format channel-name stream))
120 (defmethod write-file-header ((format t) channel-name stream)
121 (declare (ignore channel-name stream))
124 (defgeneric write-file-footer (format channel-name stream))
126 (defmethod write-file-footer ((format t) channel-name stream)
127 (declare (ignore channel-name stream))
130 (defun %log-file-path (output-root channel-name year month day type)
132 :defaults output-root
133 :directory (append (pathname-directory output-root)
135 (string-left-trim '(#\#) channel-name)
136 (format nil "~4,'0D-~2,'0D" year month)))
137 :name (make-output-name channel-name year month day)
140 (defgeneric log-file-path (output-root channel-name year month day format))
142 (defmethod log-file-path (output-root channel-name year month day
144 (%log-file-path output-root channel-name year month day "raw"))
146 (defmethod log-file-path (output-root channel-name year month day (format (eql :sexp)))
147 (%log-file-path output-root channel-name year month day "sexp"))
149 (defmethod log-file-path (output-root channel-name year month day (format (eql :binary)))
150 (%log-file-path output-root channel-name year month day "bin"))
152 (defmethod log-file-path (output-root channel-name year month day (format (eql :text)))
153 (%log-file-path output-root channel-name year month day "txt"))
155 (defmethod log-file-path (output-root channel-name year month day (format string))
156 (%log-file-path output-root channel-name year month day format))
159 (defun log-file-path-utime (output-root channel-name format utime)
160 (with-decoding (utime 0)
161 (log-file-path output-root channel-name year month day-of-month format)))
163 (defun get-stream (channel istream)
164 (elt (streams channel) istream))
166 (defun (setf get-stream) (value channel istream)
167 (setf (elt (streams channel) istream) value))
169 (defun get-format (logger istream)
170 (elt (formats logger) istream))
172 (defun get-output-name (channel istream)
173 (elt (current-output-names channel) istream))
175 (defun (setf get-output-name) (value channel istream)
176 (setf (elt (current-output-names channel) istream) value))
178 (defun ensure-output-stream-for-unichannel (utime logger channel istream)
179 (let ((name (make-output-name-utime (c-name channel) utime)))
180 (unless (string= name (get-output-name channel istream))
181 (when (get-stream channel istream)
182 (write-file-footer (get-format logger istream)
184 (get-stream channel istream))
185 (close (get-stream channel istream)))
186 (setf (get-output-name channel istream) name)
187 (let ((path (log-file-path-utime (output-root channel) (c-name channel)
188 (get-format logger istream) utime)))
189 (unless (probe-file path)
190 (ensure-directories-exist path)
191 (setf (get-stream channel istream)
192 (open path :direction :output :if-exists :error
193 :if-does-not-exist :create))
194 (write-file-header (get-format logger istream)
196 (get-stream channel istream))
197 (close (get-stream channel istream)))
198 (setf (get-stream channel istream)
199 (open path :direction :output :if-exists :append
200 :if-does-not-exist :create))))))
202 (defun ensure-output-stream (utime logger channel istream)
203 "Ensures that *output-stream* is correct."
205 ((streamp (user-output logger))
206 (unless (get-stream channel istream)
207 (setf (get-stream channel istream) (user-output logger))))
208 ((pathnamep (user-output logger))
211 (ensure-output-stream-for-unichannel utime logger channel istream))
213 (setf (get-stream channel istream)
214 (open (user-output logger) :direction :output :if-exists :append
215 :if-does-not-exist :create)))))))
217 (defun user-address (msg)
218 (let ((split (split *user-address-scanner* (raw-message-string msg)
219 :with-registers-p t)))
224 (defun need-user-address? (type)
226 ((:action :privmsg :names :rpl_topic)
231 (defgeneric %output-event (format stream utime type channel source text msg
234 (defmethod %output-event ((format t) stream utime type channel source text
236 (%output-event :raw stream utime type channel source text msg unichannel))
238 (defmethod %output-event ((format (eql :raw)) stream utime type channel source
240 (declare (ignore utime type channel source text text unichannel))
242 (format stream "~S~%"
243 (string-right-trim '(#\return) (raw-message-string msg)))))
245 (defconstant +posix-epoch+
246 (encode-universal-time 0 0 0 1 1 1970 0))
248 (defun posix-time-to-utime (time)
249 (+ time +posix-epoch+))
251 (defun last-sexp-field (type msg)
256 (trailing-argument msg))
257 ((eq type :rpl_topicwhotime)
258 (when (stringp (car (last (arguments msg))))
259 (let ((secs (parse-integer (car (last (arguments msg))) :junk-allowed t)))
261 (posix-time-to-utime secs)))))
262 ((need-user-address? type)
263 (user-address msg))))
265 (defmethod %output-event ((format (eql :sexp)) stream utime type channel source text
267 (with-standard-io-syntax
268 (let ((cl:*print-case* :downcase))
270 (format stream "(~S ~S ~S ~S ~S)~%" utime type source text (last-sexp-field type msg))
271 (format stream "(~S ~S ~S ~S ~S ~S)~%" utime type source channel text
272 (last-sexp-field type msg))))))
274 (defmethod %output-event ((format (eql :text)) stream utime type channel
275 source text msg unichannel)
276 (format stream "~A " (format-utime utime 0))
277 (when (and (null unichannel) channel)
278 (format stream "[~A] " channel))
280 (let ((user-address (when (and msg (need-user-address? type)) (user-address msg))))
283 (format stream "<~A> ~A" source text))
285 (format stream "*~A* ~A" source text))
287 (format stream "~A [~A] has joined ~A" source user-address channel))
289 (format stream "-!- ~A [~A] has left ~A" source user-address channel))
291 (format stream "-!- ~A is now known as ~A" source text))
293 (format stream "-!- ~A [~A] has been kicked from ~A" source user-address channel))
295 (format stream "-!- ~A [~A] has quit [~A]" source user-address (if text text "")))
297 (format stream "-!- ~A has set mode ~A" source text))
299 (format stream "-!- ~A changed the topic of ~A to: ~A" source channel text))
301 (format stream "-~A:~A- ~A" source channel text))
303 (format stream "-!!!- ~A" text))
305 (format stream "-!- names: ~A" text))
307 (format stream "-!- topic: ~A" text))
309 (warn "Unhandled msg type ~A." type))))
310 (write-char #\Newline stream))
312 (defun output-event-for-a-stream (msg type channel text logger istream)
313 (ensure-output-stream (received-time msg) logger channel istream)
314 (%output-event (get-format logger istream) (get-stream channel istream)
315 (received-time msg) type (c-name channel) (source msg) text msg
317 (force-output (get-stream channel istream)))
319 (defun log-daemon-message (logger fmt &rest args)
320 (let ((text (apply #'format nil fmt args)))
321 (add-private-log-entry logger "~A" text)
322 ;;don't daemon messages to the logs
324 (dolist (channel (channels logger))
325 (dotimes (istream (length (formats logger)))
326 (ensure-output-stream time logger channel istream)
327 (%output-event (get-format logger istream)
328 (get-stream channel istream)
329 time :daemon nil nil text nil
331 (force-output (get-stream channel istream))))))
334 (defun output-event (msg type channel-name &optional text)
336 (dolist (logger *loggers*)
338 ((:error :server :kill)
339 (add-private-log-entry logger "~A" (raw-message-string msg)))
341 ;; send to all channels that a nickname is joined
342 (let* ((user (find-user (connection logger)
345 (:quit (source msg)))))
346 (channels (when user (cl-irc::channels user))))
347 (dolist (channel (mapcar
348 #'(lambda (name) (find-channel-with-name logger name))
349 (mapcar #'cl-irc::name channels)))
351 (dotimes (i (length (formats logger)))
352 (output-event-for-a-stream msg type channel text logger i))))))
354 ;; msg contains channel name
355 (let* ((channel (find-channel-with-name logger channel-name)))
357 (dotimes (i (length (formats logger)))
358 (output-event-for-a-stream msg type channel text logger i))))))))
360 (defun get-private-log-stream (logger)
361 (if (and logger (private-log-stream logger))
362 (private-log-stream logger)
365 (defun get-unknown-log-stream (logger)
366 (if (and logger (unknown-log-stream logger))
367 (unknown-log-stream logger)
370 (defun add-log-entry (stream fmt &rest args)
373 (format-date-time (get-universal-time) :stream stream)
374 (write-char #\space stream)
375 (apply #'format stream fmt args)
376 (write-char #\newline stream)
377 (force-output stream))
379 (warn "Error ~A when trying to add-log-entry '~A'." e
380 (apply #'format nil fmt args)))))
382 (defun add-private-log-entry (logger fmt &rest args)
383 (apply #'add-log-entry
384 (if (get-private-log-stream logger)
385 (get-private-log-stream logger)
389 (defun privmsg-hook (msg)
390 (let ((logger (find-logger-with-connection (connection msg)))
391 (channel (first (arguments msg))))
393 ((equal channel (l-nickname logger))
394 (add-private-log-entry logger "~A" (raw-message-string msg)))
396 (output-event msg :privmsg channel (trailing-argument msg))))))
398 (defun action-hook (msg)
399 (output-event msg :action (first (arguments msg))
400 (subseq (trailing-argument msg) 8
401 (- (length (trailing-argument msg)) 1))))
403 (defun nick-hook (msg)
404 (output-event msg :nick nil (trailing-argument msg)))
406 (defun part-hook (msg)
407 (output-event msg :part (first (arguments msg))))
409 (defun quit-hook (msg)
410 (output-event msg :quit nil (trailing-argument msg)))
412 (defun join-hook (msg)
413 (output-event msg :join (trailing-argument msg)))
415 (defun kick-hook (msg)
416 (let ((logger (find-logger-with-connection (connection msg)))
417 (channel (first (arguments msg)))
418 (who-kicked (second (arguments msg))))
419 (output-event msg :kick channel who-kicked)
420 (when (string-equal (l-nickname logger) who-kicked)
421 (add-private-log-entry
423 "Logging daemon ~A has been kicked from ~A (~A)"
424 (l-nickname logger) channel (trailing-argument msg))
426 (remove-channel-logger logger channel)
428 (add-channel-logger logger channel)
429 (add-private-log-entry logger "Rejoined ~A" channel))))
431 (defun notice-hook (msg)
432 (let ((logger (find-logger-with-connection (connection msg)))
433 (channel (first (arguments msg))))
435 ((and (string-equal (source msg) "NickServ")
436 (string-equal channel (l-nickname logger))
437 (string-equal "owned by someone else" (trailing-argument msg)))
439 (privmsg (connection msg) (source msg) (format nil "IDENTIFY ~A" (password logger)))
440 (add-private-log-entry logger "NickServ asks for identity with connection not found.")))
441 ((equal channel (l-nickname logger))
442 (add-private-log-entry logger "~A" (raw-message-string msg)))
444 (output-event msg :notice channel (trailing-argument msg))))))
446 (defun ping-hook (msg)
447 (let ((logger (find-logger-with-connection (connection msg))))
448 (pong (connection msg) (server logger))
449 #+debug (format *standard-output* "Sending pong to ~A~%" (server logger))))
451 (defun pong-hook (msg)
452 (let ((logger (find-logger-with-connection (connection msg))))
453 (setf (last-pong logger) (received-time msg))))
455 (defun topic-hook (msg)
456 (output-event msg :topic (first (arguments msg)) (trailing-argument msg)))
458 (defun mode-hook (msg)
459 (output-event msg :mode (first (arguments msg))
460 (format nil "~{~A~^ ~}" (cdr (arguments msg)))))
462 (defun rpl_namreply-hook (msg)
463 (output-event msg :names (third (arguments msg))
464 (trailing-argument msg)))
466 (defun rpl_endofnames-hook (msg)
467 (declare (ignore msg))
468 ;; nothing to do for this message
471 (defun rpl_topic-hook (msg)
472 (output-event msg :rpl_topic (format nil "~{~A~^ ~}" (arguments msg))
473 (trailing-argument msg)))
475 (defun rpl_topicwhotime-hook (msg)
476 (output-event msg :rpl_topicwhotime
477 (second (arguments msg))
478 (third (arguments msg))))
481 (defun invite-hook (msg)
482 (let ((logger (find-logger-with-connection (connection msg))))
483 (add-private-log-entry logger "~A" (raw-message-string msg))))
486 (defun make-a-channel (name formats output)
487 (make-instance 'channel
489 :streams (make-array (length formats) :initial-element nil)
490 :output-root (when (and (pathnamep output)
491 (null (pathname-name output)))
493 :current-output-names (make-array (length formats)
494 :initial-element nil)))
496 (defun make-channels (names formats output)
497 (loop for i from 0 to (1- (length names))
498 collect (make-a-channel (elt names i) formats output)))
500 (defun is-unichannel-output (user-output)
501 "Returns T if output is setup for a single channel directory structure."
502 (and (pathnamep user-output) (null (pathname-name user-output))))
504 (defun do-connect-and-join (nick server username realname logging-stream channels)
505 (let ((conn (connect :nickname nick :server server
506 :username username :realname realname
507 :logging-stream logging-stream)))
508 (mapc #'(lambda (channel) (join conn channel)) channels)
509 (add-hook conn 'irc::irc-privmsg-message 'privmsg-hook)
510 (add-hook conn 'irc::ctcp-action-message 'action-hook)
511 (add-hook conn 'irc::irc-nick-message 'nick-hook)
512 (add-hook conn 'irc::irc-part-message 'part-hook)
513 (add-hook conn 'irc::irc-quit-message 'quit-hook)
514 (add-hook conn 'irc::irc-join-message 'join-hook)
515 (add-hook conn 'irc::irc-kick-message 'kick-hook)
516 (add-hook conn 'irc::irc-mode-message 'mode-hook)
517 (add-hook conn 'irc::irc-topic-message 'topic-hook)
518 (add-hook conn 'irc::irc-notice-message 'notice-hook)
519 (add-hook conn 'irc::irc-error-message 'error-hook)
520 (add-hook conn 'irc::irc-ping-message 'ping-hook)
521 (add-hook conn 'irc::irc-pong-message 'pong-hook)
522 (add-hook conn 'irc::irc-kill-message 'kill-hook)
523 (add-hook conn 'irc::irc-invite-message 'invite-hook)
524 (add-hook conn 'irc::irc-rpl_killdone-message 'warning-hook)
525 (add-hook conn 'irc::irc-rpl_closing-message 'warning-hook)
526 (add-hook conn 'irc::irc-rpl_topic-message 'rpl_topic-hook)
527 (add-hook conn 'irc::irc-rpl_namreply-message 'rpl_namreply-hook)
528 (add-hook conn 'irc::irc-rpl_endofnames-message 'rpl_endofnames-hook)
529 (add-hook conn 'irc::irc-rpl_topicwhotime-message 'rpl_topicwhotime-hook)
532 (defmethod cl-irc::irc-message-event :around ((msg cl-irc::irc-message))
533 (let ((result (call-next-method msg)))
535 ((or irc::irc-privmsg-message irc::ctcp-action-message irc::irc-nick-message
536 irc::irc-part-message irc::irc-quit-message irc::irc-join-message
537 irc::irc-kick-message irc::irc-mode-message irc::irc-topic-message
538 irc::irc-notice-message irc::irc-error-message irc::irc-ping-message
539 irc::irc-pong-message irc::irc-kill-message irc::irc-invite-message
540 irc::irc-rpl_killdone-message irc::irc-rpl_closing-message
541 irc::irc-rpl_topic-message irc::irc-rpl_namreply-message
542 irc::irc-rpl_endofnames-message irc::irc-rpl_topicwhotime-message
543 irc::irc-rpl_motd-message irc::irc-rpl_motdstart-message
544 irc::irc-rpl_endofmotd-message)
549 (get-unknown-log-stream (find-logger-with-connection (connection msg)))
551 (raw-message-string msg))))
554 (defun create-logger (nick server &key channels output password
555 realname username async
556 private-log unknown-log
557 (logging-stream t) (formats '(:text)))
558 "OUTPUT may be a pathname or a stream"
561 (if (and channels (atom channels))
562 (setq channels (list channels)))
564 (setq formats (list formats)))
566 (setq output (parse-namestring output)))
567 (let* ((conn (do-connect-and-join nick server username realname logging-stream channels))
568 (logger (make-instance
574 :channels (make-channels channels formats output)
575 :channel-names channels
579 :logging-stream logging-stream
582 :private-log private-log
583 :unknown-log unknown-log
584 :private-log-stream (when private-log
585 (open private-log :direction :output
587 :if-does-not-exist :create))
588 :unknown-log-stream (when unknown-log
589 (open unknown-log :direction :output
591 :if-does-not-exist :create))
592 :unichannel (is-unichannel-output output))))
593 (unless *daemon-monitor-process*
594 (setq *daemon-monitor-process* (cl-irc::start-process 'daemon-monitor "logger-monitor")))
597 (defun start-logger (logger async)
599 (setf (handler logger)
600 (start-background-message-handler (connection logger)))
601 (read-message-loop (connection logger))))
603 (defun remove-logger (nick)
604 "Quit the active connection with nick and remove from active list."
605 (let ((logger (find-logger-with-nick nick)))
609 "~A No active connection found with nick ~A [remove-logger].~%"
610 (format-date-time (get-universal-time))
614 (ignore-errors (quit-with-timeout (connection logger) ""))
615 (ignore-errors (stop-background-message-handler (handler logger)))
618 (let* ((c (connection logger))
619 (user (find-user c (l-nickname logger))))
621 (dolist (channel (channels logger))
622 (remove-channel user channel)))))
623 (ignore-errors (add-private-log-entry logger "Deleting loggers with nick of '~A' [remove-logger]." nick))
624 (when (private-log-stream logger)
625 (close (private-log-stream logger)))
626 (when (unknown-log-stream logger)
627 (close (unknown-log-stream logger)))
630 (delete nick *loggers* :test #'string-equal :key #'l-nickname))
633 (defun add-logger (nick server &key channels output (password "")
634 realname username private-log unknown-log
635 (logging-stream t) (async t)
637 (when (find-logger-with-nick nick)
638 (add-private-log-entry (find-logger-with-nick nick)
639 "Closing previously active connection [add-logger].")
640 (ignore-errors (remove-logger nick)))
641 (add-private-log-entry nil "Calling create-logger [add-logger].~%")
644 (mp:with-timeout (*timeout* nil)
645 (create-logger nick server :channels channels :output output
646 :logging-stream logging-stream :password password
647 :realname realname :username username
648 :private-log private-log
649 :unknown-log unknown-log
652 (mp:with-timeout (*timeout* nil)
653 (create-logger nick server :channels channels :output output
654 :logging-stream logging-stream :password password
655 :realname realname :username username
656 :private-log private-log
657 :unknown-log unknown-log
662 (add-private-log-entry nil "Acquired new logger ~A." new-logger)
664 (add-private-log-entry nil "Timeout trying to create new logger [add-logger]."))))
665 (add-private-log-entry logger "Pushing newly created logger ~A [add-logger].~%" logger)
666 (push logger *loggers*)
667 (start-logger logger async)
670 (defun add-channel-logger (logger channel-name)
672 ((find-channel-with-name logger channel-name)
673 (add-private-log-entry logger "Channel ~A already in logger ~A." channel-name logger)
676 (let ((channel (make-a-channel channel-name (formats logger) (user-output logger))))
677 (join (connection logger) channel-name)
678 (push channel (channels logger))
679 (push channel-name (channel-names logger))))))
681 (defun remove-channel-logger (logger channel-name)
682 (let ((channel (find-channel-with-name logger channel-name)))
685 (part (connection logger) channel-name)
686 (dotimes (i (length (streams channel)))
687 (when (streamp (get-stream channel i))
688 (close (get-stream channel i))
689 (setf (get-stream channel i) nil)))
690 (setf (channels logger) (delete channel-name (channels logger)
693 (setf (channel-names logger) (delete channel-name (channel-names logger)
694 :test #'string-equal))
697 (add-private-log-entry
698 logger "Channel name ~A not found in logger ~A." channel-name logger)
701 (defun add-hook-logger (logger class hook)
702 (add-hook (connection logger) class hook))
704 (defun remove-hook-logger (logger class hook)
705 (remove-hook (connection logger) class hook))
707 (defvar *warning-message-utime* nil)
709 (defun kill-hook (msg)
710 (let ((target (second (arguments msg)))
711 (logger (find-logger-with-connection (connection msg))))
712 (when (and (stringp target)
713 (string-equal target (l-nickname logger)))
714 (setf (warning-message-utime logger) (received-time msg)))
715 (add-private-log-entry logger "Killed by ~A" (source msg))))
717 (defun error-hook (msg)
718 (let ((text (trailing-argument msg))
719 (logger (find-logger-with-connection (connection msg))))
720 (when (and (stringp text)
721 (zerop (search (format nil "Closing Link: ~A" (l-nickname logger)) text)))
722 (setf (warning-message-utime logger) (received-time msg)))
723 (output-event msg :error nil (trailing-argument msg))))
725 (defun warning-hook (msg)
726 (let ((logger (find-logger-with-connection (connection msg))))
727 (output-event msg :server
728 (format nil "~{~A~^ ~} ~A)"
730 (trailing-argument msg)))
732 (setf (warning-message-utime logger) (get-universal-time)))))
734 (defun daemon-sleep (seconds)
735 #-allegro (sleep seconds)
736 #+allegro (mp:process-sleep seconds))
738 (defun log-disconnection (logger)
739 ;; avoid generating too many reconnect messages in the logs
740 (when (or (null (warning-message-utime logger))
741 (< (- (get-universal-time) (warning-message-utime logger)) 300))
742 (log-daemon-message logger "Disconnected. Attempting reconnection.")))
744 (defun log-reconnection (logger)
745 (log-daemon-message logger "Connection restablished."))
748 (defun is-connected (logger)
749 (%is-connected logger))
752 (defun is-connected (logger)
753 #-allegro (%is-connected logger)
754 #+allegro (mp:with-timeout (*timeout* nil)
755 (%is-connected logger)))
757 (defun quit-with-timeout (connection msg)
758 #-allegro (quit connection msg)
759 #+allegro (mp:with-timeout (*timeout* nil)
760 (quit connection msg)))
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-with-timeout (connection logger) "Client terminated by server"))
786 (setf *recon-nick* (l-nickname logger)
787 *recon-server* (server logger)
788 *recon-username* (l-username logger)
789 *recon-realname* (l-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)))))
819 (defun daemon-monitor ()
820 "This function runs in the background and monitors the connection of the logger."
826 (defun monitor-once ()
827 (dolist (logger *loggers*)
828 (do ((warning-time (warning-message-utime logger) (warning-message-utime logger)))
829 ((and (is-connected logger) (null warning-time)))
831 ((and warning-time (> (- (get-universal-time) warning-time) 180))
832 ;;give up frequent checking because no disconnection despite waiting
833 (setf (warning-message-utime logger) nil))
834 ((not (is-connected logger))
836 (setf (warning-message-utime logger) (get-universal-time)))
837 (attempt-reconnection logger)
838 ;;after a succesful reconnection, the value of logger will be invalid
840 (return-from monitor-once))
842 (daemon-sleep 30)))))
844 ((or (>= i 10) (some (lambda (logger) (warning-message-utime logger)) *loggers*)))