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 (defvar *loggers* nil "List of active loggers.")
72 (defparameter *user-address-scanner*
76 (:greedy-repetition 1 nil :non-whitespace-char-class)))
77 :case-insensitive-mode t))
79 (defun find-logger-with-nick (nick)
80 (find nick (the list *loggers*) :test #'string-equal :key #'l-nickname))
82 (defun find-logger-with-connection (conn)
83 (find conn (the list *loggers*) :test #'eq :key #'connection))
85 (defun canonicalize-channel-name (name)
86 (string-left-trim '(#\#) name))
88 (defun find-channel-with-name (logger name)
89 (find name (the list (channels logger)) :test #'string-equal :key #'c-name))
91 (defun make-output-name (name year month day)
92 (format nil "~A-~4,'0D.~2,'0D.~2,'0D" (canonicalize-channel-name name)
95 (defmacro with-decoding ((utime &optional zone) &body body)
97 (second minute hour day-of-month month year day-of-week daylight-p zone)
98 (decode-universal-time ,utime ,@(if zone (list zone)))
99 (declare (ignorable second minute hour day-of-month month year day-of-week daylight-p zone))
102 (defun format-utime (utime &optional zone)
103 (with-decoding (utime zone)
104 (format nil "~2,'0D:~2,'0D:~2,'0D" hour minute second)))
106 (defun format-date-time (utime &key stream)
107 (with-decoding (utime)
108 (format stream "~4,'0D/~2,'0D/~2,'0D ~2,'0D:~2,'0D:~2,'0D" year month day-of-month hour minute second)))
110 (defun make-output-name-utime (name utime)
111 (with-decoding (utime 0)
112 (make-output-name name year month day-of-month)))
114 (defgeneric write-file-header (format channel-name stream))
116 (defmethod write-file-header ((format t) channel-name stream)
117 (declare (ignore channel-name stream))
120 (defgeneric write-file-footer (format channel-name stream))
122 (defmethod write-file-footer ((format t) channel-name stream)
123 (declare (ignore channel-name stream))
126 (defun %log-file-path (output-root channel-name year month day type)
128 :defaults output-root
129 :directory (append (pathname-directory output-root)
131 (string-left-trim '(#\#) channel-name)
132 (format nil "~4,'0D-~2,'0D" year month)))
133 :name (make-output-name channel-name year month day)
136 (defgeneric log-file-path (output-root channel-name year month day format))
138 (defmethod log-file-path (output-root channel-name year month day
140 (%log-file-path output-root channel-name year month day "raw"))
142 (defmethod log-file-path (output-root channel-name year month day (format (eql :sexp)))
143 (%log-file-path output-root channel-name year month day "sexp"))
145 (defmethod log-file-path (output-root channel-name year month day (format (eql :text)))
146 (%log-file-path output-root channel-name year month day "txt"))
148 (defmethod log-file-path (output-root channel-name year month day (format string))
149 (%log-file-path output-root channel-name year month day format))
152 (defun log-file-path-utime (output-root channel-name format utime)
153 (with-decoding (utime 0)
154 (log-file-path output-root channel-name year month day-of-month format)))
156 (defun get-stream (channel istream)
157 (elt (streams channel) istream))
159 (defun (setf get-stream) (value channel istream)
160 (setf (elt (streams channel) istream) value))
162 (defun get-format (logger istream)
163 (elt (formats logger) istream))
165 (defun get-output-name (channel istream)
166 (elt (current-output-names channel) istream))
168 (defun (setf get-output-name) (value channel istream)
169 (setf (elt (current-output-names channel) istream) value))
171 (defun ensure-output-stream-for-unichannel (utime logger channel istream)
172 (let ((name (make-output-name-utime (c-name channel) utime)))
173 (unless (string= name (get-output-name channel istream))
174 (when (get-stream channel istream)
175 (write-file-footer (get-format logger istream)
177 (get-stream channel istream))
178 (close (get-stream channel istream)))
179 (setf (get-output-name channel istream) name)
180 (let ((path (log-file-path-utime (output-root channel) (c-name channel)
181 (get-format logger istream) utime)))
182 (unless (probe-file path)
183 (ensure-directories-exist path)
184 (setf (get-stream channel istream)
185 (open path :direction :output :if-exists :error
186 :if-does-not-exist :create))
187 (write-file-header (get-format logger istream)
189 (get-stream channel istream))
190 (close (get-stream channel istream)))
191 (setf (get-stream channel istream)
192 (open path :direction :output :if-exists :append
193 :if-does-not-exist :create))))))
195 (defun ensure-output-stream (utime logger channel istream)
196 "Ensures that *output-stream* is correct."
198 ((streamp (user-output logger))
199 (unless (get-stream channel istream)
200 (setf (get-stream channel istream) (user-output logger))))
201 ((pathnamep (user-output logger))
204 (ensure-output-stream-for-unichannel utime logger channel istream))
206 (setf (get-stream channel istream)
207 (open (user-output logger) :direction :output :if-exists :append
208 :if-does-not-exist :create)))))))
210 (defun user-address (msg)
211 (let ((split (split *user-address-scanner* (raw-message-string msg)
212 :with-registers-p t)))
217 (defun need-user-address? (type)
219 ((:action :privmsg :names :rpl_topic)
224 (defgeneric %output-event (format stream utime type channel source text msg
227 (defmethod %output-event ((format t) stream utime type channel source text
229 (%output-event :raw stream utime type channel source text msg unichannel))
231 (defmethod %output-event ((format (eql :raw)) stream utime type channel source
233 (declare (ignore utime type channel source text text unichannel))
235 (format stream "~S~%"
236 (string-right-trim '(#\return) (raw-message-string msg)))))
238 (defconstant +posix-epoch+
239 (encode-universal-time 0 0 0 1 1 1970 0))
241 (defun posix-time-to-utime (time)
242 (+ time +posix-epoch+))
244 (defun last-sexp-field (type msg)
249 (trailing-argument msg))
250 ((eq type :rpl_topicwhotime)
251 (when (stringp (car (last (arguments msg))))
252 (let ((secs (parse-integer (car (last (arguments msg))) :junk-allowed t)))
254 (posix-time-to-utime secs)))))
255 ((need-user-address? type)
256 (user-address msg))))
258 (defmethod %output-event ((format (eql :sexp)) stream utime type channel source text
260 (with-standard-io-syntax
261 (let ((cl:*print-case* :downcase))
263 (format stream "(~S ~S ~S ~S ~S)~%" utime type source text (last-sexp-field type msg))
264 (format stream "(~S ~S ~S ~S ~S ~S)~%" utime type source channel text
265 (last-sexp-field type msg))))))
267 (defmethod %output-event ((format (eql :text)) stream utime type channel
268 source text msg unichannel)
269 (format stream "~A " (format-utime utime 0))
270 (when (and (null unichannel) channel)
271 (format stream "[~A] " channel))
273 (let ((user-address (when (and msg (need-user-address? type)) (user-address msg))))
276 (format stream "<~A> ~A" source text))
278 (format stream "*~A* ~A" source text))
280 (format stream "~A [~A] has joined ~A" source user-address channel))
282 (format stream "-!- ~A [~A] has left ~A" source user-address channel))
284 (format stream "-!- ~A is now known as ~A" source text))
286 (format stream "-!- ~A [~A] has been kicked from ~A" source user-address channel))
288 (format stream "-!- ~A [~A] has quit [~A]" source user-address (if text text "")))
290 (format stream "-!- ~A has set mode ~A" source text))
292 (format stream "-!- ~A changed the topic of ~A to: ~A" source channel text))
294 (format stream "-~A:~A- ~A" source channel text))
296 (format stream "-!!!- ~A" text))
298 (format stream "-!- names: ~A" text))
300 (format stream "-!- topic: ~A" text))
302 (warn "Unhandled msg type ~A." type))))
303 (write-char #\Newline stream))
305 (defun output-event-for-a-stream (msg type channel text logger istream)
306 (ensure-output-stream (received-time msg) logger channel istream)
307 (%output-event (get-format logger istream) (get-stream channel istream)
308 (received-time msg) type (c-name channel) (source msg) text msg
310 (force-output (get-stream channel istream)))
312 (defun log-daemon-message (logger fmt &rest args)
313 (let ((text (apply #'format nil fmt args)))
314 (add-private-log-entry logger "~A" text)
315 ;;don't daemon messages to the logs
317 (dolist (channel (channels logger))
318 (dotimes (istream (length (formats logger)))
319 (ensure-output-stream time logger channel istream)
320 (%output-event (get-format logger istream)
321 (get-stream channel istream)
322 time :daemon nil nil text nil
324 (force-output (get-stream channel istream))))))
327 (defun output-event (msg type channel-name &optional text)
329 (dolist (logger *loggers*)
331 ((:error :server :kill)
332 (add-private-log-entry logger "~A" (raw-message-string msg)))
334 ;; send to all channels that a nickname is joined
335 (let* ((user (find-user (connection logger)
338 (:quit (source msg)))))
339 (channels (when user (cl-irc::channels user))))
340 (dolist (channel (mapcar
341 #'(lambda (name) (find-channel-with-name logger name))
342 (mapcar #'cl-irc::name channels)))
344 (dotimes (i (length (formats logger)))
345 (output-event-for-a-stream msg type channel text logger i))))))
347 ;; msg contains channel name
348 (let* ((channel (find-channel-with-name logger channel-name)))
350 (dotimes (i (length (formats logger)))
351 (output-event-for-a-stream msg type channel text logger i))))))))
353 (defun get-private-log-stream (logger)
354 (if (and logger (private-log-stream logger))
355 (private-log-stream logger)
358 (defun get-unknown-log-stream (logger)
359 (if (and logger (unknown-log-stream logger))
360 (unknown-log-stream logger)
363 (defun add-log-entry (stream fmt &rest args)
366 (format-date-time (get-universal-time) :stream stream)
367 (write-char #\space stream)
368 (apply #'format stream fmt args)
369 (write-char #\newline stream)
370 (force-output stream))
372 (warn "Error ~A when trying to add-log-entry '~A'." e
373 (apply #'format nil fmt args)))))
375 (defun add-private-log-entry (logger fmt &rest args)
376 (apply #'add-log-entry
377 (if (get-private-log-stream logger)
378 (get-private-log-stream logger)
382 (defun privmsg-hook (msg)
383 (let ((logger (find-logger-with-connection (connection msg)))
384 (channel (first (arguments msg))))
386 ((equal channel (l-nickname logger))
387 (add-private-log-entry logger "~A" (raw-message-string msg)))
389 (output-event msg :privmsg channel (trailing-argument msg))))))
391 (defun action-hook (msg)
392 (output-event msg :action (first (arguments msg))
393 (subseq (trailing-argument msg) 8
394 (- (length (trailing-argument msg)) 1))))
396 (defun nick-hook (msg)
397 (output-event msg :nick nil (trailing-argument msg)))
399 (defun part-hook (msg)
400 (output-event msg :part (first (arguments msg))))
402 (defun quit-hook (msg)
403 (output-event msg :quit nil (trailing-argument msg)))
405 (defun join-hook (msg)
406 (output-event msg :join (trailing-argument msg)))
408 (defun kick-hook (msg)
409 (let ((logger (find-logger-with-connection (connection msg)))
410 (channel (first (arguments msg)))
411 (who-kicked (second (arguments msg))))
412 (output-event msg :kick channel who-kicked)
413 (when (string-equal (l-nickname logger) who-kicked)
414 (add-private-log-entry
416 "Logging daemon ~A has been kicked from ~A (~A)"
417 (l-nickname logger) channel (trailing-argument msg))
419 (remove-channel-logger logger channel)
421 (add-channel-logger logger channel)
422 (add-private-log-entry logger "Rejoined ~A" channel))))
424 (defun notice-hook (msg)
425 (let ((logger (find-logger-with-connection (connection msg)))
426 (channel (first (arguments msg))))
428 ((and (string-equal (source msg) "NickServ")
429 (string-equal channel (l-nickname logger))
430 (string-equal "owned by someone else" (trailing-argument msg)))
432 (privmsg (connection msg) (source msg) (format nil "IDENTIFY ~A" (password logger)))
433 (add-private-log-entry logger "NickServ asks for identity with connection not found.")))
434 ((equal channel (l-nickname logger))
435 (add-private-log-entry logger "~A" (raw-message-string msg)))
437 (output-event msg :notice channel (trailing-argument msg))))))
439 (defun ping-hook (msg)
440 (let ((logger (find-logger-with-connection (connection msg))))
441 (pong (connection msg) (server logger))
442 #+debug (format *standard-output* "Sending pong to ~A~%" (server logger))))
444 (defun pong-hook (msg)
445 (let ((logger (find-logger-with-connection (connection msg))))
446 (setf (last-pong logger) (received-time msg))))
448 (defun topic-hook (msg)
449 (output-event msg :topic (first (arguments msg)) (trailing-argument msg)))
451 (defun mode-hook (msg)
452 (output-event msg :mode (first (arguments msg))
453 (format nil "~{~A~^ ~}" (cdr (arguments msg)))))
455 (defun rpl_namreply-hook (msg)
456 (output-event msg :names (third (arguments msg))
457 (trailing-argument msg)))
459 (defun rpl_endofnames-hook (msg)
460 (declare (ignore msg))
461 ;; nothing to do for this message
464 (defun rpl_topic-hook (msg)
465 (output-event msg :rpl_topic (format nil "~{~A~^ ~}" (arguments msg))
466 (trailing-argument msg)))
468 (defun rpl_topicwhotime-hook (msg)
469 (output-event msg :rpl_topicwhotime
470 (second (arguments msg))
471 (third (arguments msg))))
474 (defun invite-hook (msg)
475 (let ((logger (find-logger-with-connection (connection msg))))
476 (add-private-log-entry logger "~A" (raw-message-string msg))))
479 (defun make-a-channel (name formats output)
480 (make-instance 'channel
482 :streams (make-array (length formats) :initial-element nil)
483 :output-root (when (and (pathnamep output)
484 (null (pathname-name output)))
486 :current-output-names (make-array (length formats)
487 :initial-element nil)))
489 (defun make-channels (names formats output)
490 (loop for i from 0 to (1- (length names))
491 collect (make-a-channel (elt names i) formats output)))
493 (defun is-unichannel-output (user-output)
494 "Returns T if output is setup for a single channel directory structure."
495 (and (pathnamep user-output) (null (pathname-name user-output))))
497 (defun do-connect-and-join (nick server username realname logging-stream channels)
498 (let ((conn (connect :nickname nick :server server
499 :username username :realname realname
500 :logging-stream logging-stream)))
501 (mapc #'(lambda (channel) (join conn channel)) channels)
502 (add-hook conn 'irc::irc-privmsg-message 'privmsg-hook)
503 (add-hook conn 'irc::ctcp-action-message 'action-hook)
504 (add-hook conn 'irc::irc-nick-message 'nick-hook)
505 (add-hook conn 'irc::irc-part-message 'part-hook)
506 (add-hook conn 'irc::irc-quit-message 'quit-hook)
507 (add-hook conn 'irc::irc-join-message 'join-hook)
508 (add-hook conn 'irc::irc-kick-message 'kick-hook)
509 (add-hook conn 'irc::irc-mode-message 'mode-hook)
510 (add-hook conn 'irc::irc-topic-message 'topic-hook)
511 (add-hook conn 'irc::irc-notice-message 'notice-hook)
512 (add-hook conn 'irc::irc-error-message 'error-hook)
513 (add-hook conn 'irc::irc-ping-message 'ping-hook)
514 (add-hook conn 'irc::irc-pong-message 'pong-hook)
515 (add-hook conn 'irc::irc-kill-message 'kill-hook)
516 (add-hook conn 'irc::irc-invite-message 'invite-hook)
517 (add-hook conn 'irc::irc-rpl_killdone-message 'warning-hook)
518 (add-hook conn 'irc::irc-rpl_closing-message 'warning-hook)
519 (add-hook conn 'irc::irc-rpl_topic-message 'rpl_topic-hook)
520 (add-hook conn 'irc::irc-rpl_namreply-message 'rpl_namreply-hook)
521 (add-hook conn 'irc::irc-rpl_endofnames-message 'rpl_endofnames-hook)
522 (add-hook conn 'irc::irc-rpl_topicwhotime-message 'rpl_topicwhotime-hook)
525 (defmethod cl-irc::irc-message-event :around ((msg cl-irc::irc-message))
526 (let ((result (call-next-method msg)))
528 ((or irc::irc-privmsg-message irc::ctcp-action-message irc::irc-nick-message
529 irc::irc-part-message irc::irc-quit-message irc::irc-join-message
530 irc::irc-kick-message irc::irc-mode-message irc::irc-topic-message
531 irc::irc-notice-message irc::irc-error-message irc::irc-ping-message
532 irc::irc-pong-message irc::irc-kill-message irc::irc-invite-message
533 irc::irc-rpl_killdone-message irc::irc-rpl_closing-message
534 irc::irc-rpl_topic-message irc::irc-rpl_namreply-message
535 irc::irc-rpl_endofnames-message irc::irc-rpl_topicwhotime-message
536 irc::irc-rpl_motd-message irc::irc-rpl_motdstart-message
537 irc::irc-rpl_endofmotd-message)
542 (get-unknown-log-stream (find-logger-with-connection (connection msg)))
544 (raw-message-string msg))))
547 (defun create-logger (nick server &key channels output password
548 realname username async
549 private-log unknown-log
550 (logging-stream t) (formats '(:text)))
551 "OUTPUT may be a pathname or a stream"
554 (if (and channels (atom channels))
555 (setq channels (list channels)))
557 (setq formats (list formats)))
559 (setq output (parse-namestring output)))
560 (let* ((conn (do-connect-and-join nick server username realname logging-stream channels))
561 (logger (make-instance
567 :channels (make-channels channels formats output)
568 :channel-names channels
572 :logging-stream logging-stream
575 :private-log private-log
576 :unknown-log unknown-log
577 :private-log-stream (when private-log
578 (open private-log :direction :output
580 :if-does-not-exist :create))
581 :unknown-log-stream (when unknown-log
582 (open unknown-log :direction :output
584 :if-does-not-exist :create))
585 :unichannel (is-unichannel-output output))))
586 (unless *daemon-monitor-process*
587 (setq *daemon-monitor-process* (cl-irc::start-process 'daemon-monitor "logger-monitor")))
590 (defun start-logger (logger async)
592 (setf (handler logger)
593 (start-background-message-handler (connection logger)))
594 (read-message-loop (connection logger))))
596 (defun remove-logger (nick)
597 "Quit the active connection with nick and remove from active list."
598 (let ((logger (find-logger-with-nick nick)))
602 "~A No active connection found with nick ~A [remove-logger].~%"
603 (format-date-time (get-universal-time))
607 (ignore-errors (quit-with-timeout (connection logger) ""))
608 (ignore-errors (stop-background-message-handler (handler logger)))
611 (let* ((c (connection logger))
612 (user (find-user c (l-nickname logger))))
614 (dolist (channel (channels logger))
615 (remove-channel user channel)))))
616 (ignore-errors (add-private-log-entry logger "Deleting loggers with nick of '~A' [remove-logger]." nick))
617 (when (private-log-stream logger)
618 (close (private-log-stream logger)))
619 (when (unknown-log-stream logger)
620 (close (unknown-log-stream logger)))
623 (delete nick *loggers* :test #'string-equal :key #'l-nickname))
626 (defun add-logger (nick server &key channels output (password "")
627 realname username private-log unknown-log
628 (logging-stream t) (async t)
630 (when (find-logger-with-nick nick)
631 (add-private-log-entry (find-logger-with-nick nick)
632 "Closing previously active connection [add-logger].")
633 (ignore-errors (remove-logger nick)))
634 (add-private-log-entry nil "Calling create-logger [add-logger].~%")
637 (mp:with-timeout (*timeout* nil)
638 (create-logger nick server :channels channels :output output
639 :logging-stream logging-stream :password password
640 :realname realname :username username
641 :private-log private-log
642 :unknown-log unknown-log
645 (mp:with-timeout (*timeout* nil)
646 (create-logger nick server :channels channels :output output
647 :logging-stream logging-stream :password password
648 :realname realname :username username
649 :private-log private-log
650 :unknown-log unknown-log
655 (add-private-log-entry nil "Acquired new logger ~A." new-logger)
657 (add-private-log-entry nil "Timeout trying to create new logger [add-logger]."))))
658 (add-private-log-entry logger "Pushing newly created logger ~A [add-logger].~%" logger)
659 (push logger *loggers*)
660 (start-logger logger async)
663 (defun add-channel-logger (logger channel-name)
665 ((find-channel-with-name logger channel-name)
666 (add-private-log-entry logger "Channel ~A already in logger ~A." channel-name logger)
669 (let ((channel (make-a-channel channel-name (formats logger) (user-output logger))))
670 (join (connection logger) channel-name)
671 (push channel (channels logger))
672 (push channel-name (channel-names logger))))))
674 (defun remove-channel-logger (logger channel-name)
675 (let ((channel (find-channel-with-name logger channel-name)))
678 (part (connection logger) channel-name)
679 (dotimes (i (length (streams channel)))
680 (when (streamp (get-stream channel i))
681 (close (get-stream channel i))
682 (setf (get-stream channel i) nil)))
683 (setf (channels logger) (delete channel-name (channels logger)
686 (setf (channel-names logger) (delete channel-name (channel-names logger)
687 :test #'string-equal))
690 (add-private-log-entry
691 logger "Channel name ~A not found in logger ~A." channel-name logger)
694 (defun add-hook-logger (logger class hook)
695 (add-hook (connection logger) class hook))
697 (defun remove-hook-logger (logger class hook)
698 (remove-hook (connection logger) class hook))
700 (defvar *warning-message-utime* nil)
702 (defun kill-hook (msg)
703 (let ((target (second (arguments msg)))
704 (logger (find-logger-with-connection (connection msg))))
705 (when (and (stringp target)
706 (string-equal target (l-nickname logger)))
707 (setf (warning-message-utime logger) (received-time msg)))
708 (add-private-log-entry logger "Killed by ~A" (source msg))))
710 (defun error-hook (msg)
711 (let ((text (trailing-argument msg))
712 (logger (find-logger-with-connection (connection msg))))
713 (when (and (stringp text)
714 (zerop (search (format nil "Closing Link: ~A" (l-nickname logger)) text)))
715 (setf (warning-message-utime logger) (received-time msg)))
716 (output-event msg :error nil (trailing-argument msg))))
718 (defun warning-hook (msg)
719 (let ((logger (find-logger-with-connection (connection msg))))
720 (output-event msg :server
721 (format nil "~{~A~^ ~} ~A)"
723 (trailing-argument msg)))
725 (setf (warning-message-utime logger) (get-universal-time)))))
727 (defun daemon-sleep (seconds)
728 #-allegro (sleep seconds)
729 #+allegro (mp:process-sleep seconds))
731 (defun log-disconnection (logger)
732 ;; avoid generating too many reconnect messages in the logs
733 (when (or (null (warning-message-utime logger))
734 (< (- (get-universal-time) (warning-message-utime logger)) 300))
735 (log-daemon-message logger "Disconnected. Attempting reconnection.")))
737 (defun log-reconnection (logger)
738 (log-daemon-message logger "Connection restablished."))
741 (defun is-connected (logger)
742 (%is-connected logger))
745 (defun is-connected (logger)
746 #-allegro (%is-connected logger)
747 #+allegro (mp:with-timeout (*timeout* nil)
748 (%is-connected logger)))
750 (defun quit-with-timeout (connection msg)
751 #-allegro (quit connection msg)
752 #+allegro (mp:with-timeout (*timeout* nil)
753 (quit connection msg)))
755 (defun %is-connected (logger)
756 (when (ignore-errors (ping (connection logger) (server logger)))
758 (when (and (last-pong logger)
759 (< (- (get-universal-time) (last-pong logger)) 21))
760 (return-from %is-connected t))
764 (let (*recon-nick* *recon-server* *recon-username* *recon-realname*
765 *recon-user-output* *recon-private-log* *recon-unknown-log*
766 *recon-formats* *recon-async* *recon-logging-stream* *recon-channel-names*)
767 (declare (special *recon-nick* *recon-server* *recon-username* *recon-realname*
768 *recon-formats* *recon-password* *recon-async*
769 *recon-user-output* *recon-private-log* *recon-unknown-log*
770 *recon-logging-stream* *recon-channel-names*))
772 (defun attempt-reconnection (logger)
773 (when (is-connected logger)
774 (return-from attempt-reconnection nil))
776 (log-disconnection logger)
777 (when (connection logger)
778 (ignore-errors (quit-with-timeout (connection logger) "Client terminated by server"))
779 (setf *recon-nick* (l-nickname logger)
780 *recon-server* (server logger)
781 *recon-username* (l-username logger)
782 *recon-realname* (l-realname logger)
783 *recon-password* (password logger)
784 *recon-async* (async logger)
785 *recon-user-output* (user-output logger)
786 *recon-private-log* (private-log logger)
787 *recon-unknown-log* (unknown-log logger)
788 *recon-formats* (formats logger)
789 *recon-logging-stream* (logging-stream logger)
790 *recon-channel-names* (channel-names logger))
791 (ignore-errors (remove-logger logger)))
795 (add-logger *recon-nick* *recon-server*
796 :channels *recon-channel-names*
797 :output *recon-user-output*
798 :password *recon-password*
799 :realname *recon-realname*
800 :username *recon-username*
801 :logging-stream *recon-logging-stream*
802 :private-log *recon-private-log*
803 :unknown-log *recon-unknown-log*
805 :formats *recon-formats*))))
808 (when (is-connected new-logger)
809 (log-reconnection new-logger)))))
812 (defun daemon-monitor ()
813 "This function runs in the background and monitors the connection of the logger."
819 (defun monitor-once ()
820 (dolist (logger *loggers*)
821 (do ((warning-time (warning-message-utime logger) (warning-message-utime logger)))
822 ((and (is-connected logger) (null warning-time)))
824 ((and warning-time (> (- (get-universal-time) warning-time) 180))
825 ;;give up frequent checking because no disconnection despite waiting
826 (setf (warning-message-utime logger) nil))
827 ((not (is-connected logger))
829 (setf (warning-message-utime logger) (get-universal-time)))
830 (attempt-reconnection logger)
831 ;;after a succesful reconnection, the value of logger will be invalid
833 (return-from monitor-once))
835 (daemon-sleep 30)))))
837 ((or (>= i 10) (some (lambda (logger) (warning-message-utime logger)) *loggers*)))