2 * ircd-ratbox: A slightly useful ircd.
3 * m_message.c: Sends a (PRIVMSG|NOTICE) message to a user or channel.
5 * Copyright (C) 1990 Jarkko Oikarinen and University of Oulu, Co Center
6 * Copyright (C) 1996-2002 Hybrid Development Team
7 * Copyright (C) 2002-2005 ircd-ratbox development team
9 * This program is free software; you can redistribute it and/or modify
10 * it under the terms of the GNU General Public License as published by
11 * the Free Software Foundation; either version 2 of the License, or
12 * (at your option) any later version.
14 * This program is distributed in the hope that it will be useful,
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 * GNU General Public License for more details.
19 * You should have received a copy of the GNU General Public License
20 * along with this program; if not, write to the Free Software
21 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
24 * $Id: m_message.c 3173 2007-01-31 23:57:18Z jilles $
44 #include "s_newconf.h"
47 #include "inline/stringops.h"
49 static int m_message(int, const char *, struct Client
*, struct Client
*, int, const char **);
50 static int m_privmsg(struct Client
*, struct Client
*, int, const char **);
51 static int m_notice(struct Client
*, struct Client
*, int, const char **);
53 static void expire_tgchange(void *unused
);
54 static struct ev_entry
*expire_tgchange_event
;
59 expire_tgchange_event
= rb_event_addish("expire_tgchange", expire_tgchange
, NULL
, 300);
60 expire_tgchange(NULL
);
67 rb_event_delete(expire_tgchange_event
);
70 struct Message privmsg_msgtab
= {
71 "PRIVMSG", 0, 0, 0, MFLG_SLOW
| MFLG_UNREG
,
72 {mg_unreg
, {m_privmsg
, 0}, {m_privmsg
, 0}, mg_ignore
, mg_ignore
, {m_privmsg
, 0}}
74 struct Message notice_msgtab
= {
75 "NOTICE", 0, 0, 0, MFLG_SLOW
,
76 {mg_unreg
, {m_notice
, 0}, {m_notice
, 0}, {m_notice
, 0}, mg_ignore
, {m_notice
, 0}}
79 mapi_clist_av1 message_clist
[] = { &privmsg_msgtab
, ¬ice_msgtab
, NULL
};
81 DECLARE_MODULE_AV1(message
, modinit
, moddeinit
, message_clist
, NULL
, NULL
, "$Revision: 3173 $");
90 static int build_target_list(int p_or_n
, const char *command
,
91 struct Client
*client_p
,
92 struct Client
*source_p
, const char *nicks_channels
, const char *text
);
94 static int flood_attack_client(int p_or_n
, struct Client
*source_p
, struct Client
*target_p
);
95 static int flood_attack_channel(int p_or_n
, struct Client
*source_p
,
96 struct Channel
*chptr
, char *chname
);
98 /* Fifteen seconds should be plenty for a client to reply a ctcp */
99 #define LARGE_CTCP_TIME 15
101 #define ENTITY_NONE 0
102 #define ENTITY_CHANNEL 1
103 #define ENTITY_CHANNEL_OPMOD 2
104 #define ENTITY_CHANOPS_ON_CHANNEL 3
105 #define ENTITY_CLIENT 4
107 static struct entity targets
[512];
108 static int ntargets
= 0;
110 static int duplicate_ptr(void *);
112 static void msg_channel(int p_or_n
, const char *command
,
113 struct Client
*client_p
,
114 struct Client
*source_p
, struct Channel
*chptr
, const char *text
);
116 static void msg_channel_opmod(int p_or_n
, const char *command
,
117 struct Client
*client_p
,
118 struct Client
*source_p
, struct Channel
*chptr
,
121 static void msg_channel_flags(int p_or_n
, const char *command
,
122 struct Client
*client_p
,
123 struct Client
*source_p
,
124 struct Channel
*chptr
, int flags
, const char *text
);
126 static void msg_client(int p_or_n
, const char *command
,
127 struct Client
*source_p
, struct Client
*target_p
, const char *text
);
129 static void handle_special(int p_or_n
, const char *command
,
130 struct Client
*client_p
, struct Client
*source_p
, const char *nick
,
139 ** Another massive cleanup Nov, 2000
140 ** (I don't think there is a single line left from 6/91. Maybe.)
141 ** m_privmsg and m_notice do basically the same thing.
142 ** in the original 2.8.2 code base, they were the same function
143 ** "m_message.c." When we did the great cleanup in conjuncton with bleep
144 ** of ircu fame, we split m_privmsg.c and m_notice.c.
145 ** I don't see the point of that now. Its harder to maintain, its
146 ** easier to introduce bugs into one version and not the other etc.
147 ** Really, the penalty of an extra function call isn't that big a deal folks.
156 m_privmsg(struct Client
*client_p
, struct Client
*source_p
, int parc
, const char *parv
[])
158 return m_message(PRIVMSG
, "PRIVMSG", client_p
, source_p
, parc
, parv
);
162 m_notice(struct Client
*client_p
, struct Client
*source_p
, int parc
, const char *parv
[])
164 return m_message(NOTICE
, "NOTICE", client_p
, source_p
, parc
, parv
);
168 * inputs - flag privmsg or notice
169 * - pointer to command "PRIVMSG" or "NOTICE"
170 * - pointer to client_p
171 * - pointer to source_p
172 * - pointer to channel
175 m_message(int p_or_n
,
177 struct Client
*client_p
, struct Client
*source_p
, int parc
, const char *parv
[])
181 if(parc
< 2 || EmptyString(parv
[1]))
184 sendto_one(source_p
, form_str(ERR_NORECIPIENT
), me
.name
,
185 source_p
->name
, command
);
189 if(parc
< 3 || EmptyString(parv
[2]))
192 sendto_one(source_p
, form_str(ERR_NOTEXTTOSEND
), me
.name
, source_p
->name
);
196 /* Finish the flood grace period if theyre not messaging themselves
197 * as some clients (ircN) do this as a "lag check"
199 if(MyClient(source_p
) && !IsFloodDone(source_p
) && irccmp(source_p
->name
, parv
[1]))
200 flood_endgrace(source_p
);
202 if(build_target_list(p_or_n
, command
, client_p
, source_p
, parv
[1], parv
[2]) < 0)
207 for(i
= 0; i
< ntargets
; i
++)
209 switch (targets
[i
].type
)
212 msg_channel(p_or_n
, command
, client_p
, source_p
,
213 (struct Channel
*) targets
[i
].ptr
, parv
[2]);
216 case ENTITY_CHANNEL_OPMOD
:
217 msg_channel_opmod(p_or_n
, command
, client_p
, source_p
,
218 (struct Channel
*) targets
[i
].ptr
, parv
[2]);
221 case ENTITY_CHANOPS_ON_CHANNEL
:
222 msg_channel_flags(p_or_n
, command
, client_p
, source_p
,
223 (struct Channel
*) targets
[i
].ptr
,
224 targets
[i
].flags
, parv
[2]);
228 msg_client(p_or_n
, command
, source_p
,
229 (struct Client
*) targets
[i
].ptr
, parv
[2]);
240 * inputs - pointer to given client_p (server)
241 * - pointer to given source (oper/client etc.)
242 * - pointer to list of nicks/channels
243 * - pointer to table to place results
244 * - pointer to text (only used if source_p is an oper)
245 * output - number of valid entities
246 * side effects - target_table is modified to contain a list of
247 * pointers to channels or clients
248 * if source client is an oper
249 * all the classic old bizzare oper privmsg tricks
250 * are parsed and sent as is, if prefixed with $
256 build_target_list(int p_or_n
, const char *command
, struct Client
*client_p
,
257 struct Client
*source_p
, const char *nicks_channels
, const char *text
)
260 char *p
, *nick
, *target_list
;
261 struct Channel
*chptr
= NULL
;
262 struct Client
*target_p
;
264 target_list
= LOCAL_COPY(nicks_channels
); /* skip strcpy for non-lazyleafs */
268 for(nick
= rb_strtok_r(target_list
, ",", &p
); nick
; nick
= rb_strtok_r(NULL
, ",", &p
))
272 * channels are privmsg'd a lot more than other clients, moved up
273 * here plain old channel msg?
276 if(IsChanPrefix(*nick
))
278 /* ignore send of local channel to a server (should not happen) */
279 if(IsServer(client_p
) && *nick
== '&')
282 if((chptr
= find_channel(nick
)) != NULL
)
284 if(!duplicate_ptr(chptr
))
286 if(ntargets
>= ConfigFileEntry
.max_targets
)
288 sendto_one(source_p
, form_str(ERR_TOOMANYTARGETS
),
289 me
.name
, source_p
->name
, nick
);
292 targets
[ntargets
].ptr
= (void *) chptr
;
293 targets
[ntargets
++].type
= ENTITY_CHANNEL
;
297 /* non existant channel */
298 else if(p_or_n
!= NOTICE
)
299 sendto_one_numeric(source_p
, ERR_NOSUCHNICK
,
300 form_str(ERR_NOSUCHNICK
), nick
);
305 if(MyClient(source_p
))
306 target_p
= find_named_person(nick
);
308 target_p
= find_person(nick
);
310 /* look for a privmsg to another client */
313 if(!duplicate_ptr(target_p
))
315 if(ntargets
>= ConfigFileEntry
.max_targets
)
317 sendto_one(source_p
, form_str(ERR_TOOMANYTARGETS
),
318 me
.name
, source_p
->name
, nick
);
321 targets
[ntargets
].ptr
= (void *) target_p
;
322 targets
[ntargets
].type
= ENTITY_CLIENT
;
323 targets
[ntargets
++].flags
= 0;
328 /* @#channel or +#channel message ? */
332 /* allow %+@ if someone wants to do that */
337 else if(*nick
== '+')
338 type
|= CHFL_CHANOP
| CHFL_VOICE
;
347 if(EmptyString(nick
))
349 sendto_one(source_p
, form_str(ERR_NORECIPIENT
),
350 me
.name
, source_p
->name
, command
);
354 /* At this point, nick+1 should be a channel name i.e. #foo or &foo
355 * if the channel is found, fine, if not report an error
358 if((chptr
= find_channel(nick
)) != NULL
)
360 struct membership
*msptr
;
362 msptr
= find_channel_membership(chptr
, source_p
);
364 if(!IsServer(source_p
) && !IsService(source_p
) && !is_chanop_voiced(msptr
))
366 sendto_one(source_p
, form_str(ERR_CHANOPRIVSNEEDED
),
367 get_id(&me
, source_p
),
368 get_id(source_p
, source_p
),
373 if(!duplicate_ptr(chptr
))
375 if(ntargets
>= ConfigFileEntry
.max_targets
)
377 sendto_one(source_p
, form_str(ERR_TOOMANYTARGETS
),
378 me
.name
, source_p
->name
, nick
);
381 targets
[ntargets
].ptr
= (void *) chptr
;
382 targets
[ntargets
].type
= ENTITY_CHANOPS_ON_CHANNEL
;
383 targets
[ntargets
++].flags
= type
;
386 else if(p_or_n
!= NOTICE
)
388 sendto_one_numeric(source_p
, ERR_NOSUCHNICK
,
389 form_str(ERR_NOSUCHNICK
), nick
);
395 if(IsServer(client_p
) && *nick
== '=' && nick
[1] == '#')
398 if((chptr
= find_channel(nick
)) != NULL
)
400 if(!duplicate_ptr(chptr
))
402 if(ntargets
>= ConfigFileEntry
.max_targets
)
404 sendto_one(source_p
, form_str(ERR_TOOMANYTARGETS
),
405 me
.name
, source_p
->name
, nick
);
408 targets
[ntargets
].ptr
= (void *) chptr
;
409 targets
[ntargets
++].type
= ENTITY_CHANNEL_OPMOD
;
413 /* non existant channel */
414 else if(p_or_n
!= NOTICE
)
415 sendto_one_numeric(source_p
, ERR_NOSUCHNICK
,
416 form_str(ERR_NOSUCHNICK
), nick
);
421 if(strchr(nick
, '@') || (IsOper(source_p
) && (*nick
== '$')))
423 handle_special(p_or_n
, command
, client_p
, source_p
, nick
, text
);
427 /* no matching anything found - error if not NOTICE */
430 /* dont give this numeric when source is local,
431 * because its misleading --anfl
433 if(!MyClient(source_p
) && IsDigit(*nick
))
434 sendto_one(source_p
, ":%s %d %s * :Target left IRC. "
435 "Failed to deliver: [%.20s]",
436 get_id(&me
, source_p
), ERR_NOSUCHNICK
,
437 get_id(source_p
, source_p
), text
);
439 sendto_one_numeric(source_p
, ERR_NOSUCHNICK
,
440 form_str(ERR_NOSUCHNICK
), nick
);
450 * inputs - pointer to check
451 * - pointer to table of entities
452 * - number of valid entities so far
453 * output - YES if duplicate pointer in table, NO if not.
454 * note, this does the canonize using pointers
455 * side effects - NONE
458 duplicate_ptr(void *ptr
)
461 for(i
= 0; i
< ntargets
; i
++)
462 if(targets
[i
].ptr
== ptr
)
470 * inputs - flag privmsg or notice
471 * - pointer to command "PRIVMSG" or "NOTICE"
472 * - pointer to client_p
473 * - pointer to source_p
474 * - pointer to channel
476 * side effects - message given channel
478 * XXX - We need to rework this a bit, it's a tad ugly. --nenolod
481 msg_channel(int p_or_n
, const char *command
,
482 struct Client
*client_p
, struct Client
*source_p
, struct Channel
*chptr
,
488 if(MyClient(source_p
))
490 /* idle time shouldnt be reset by notices --fl */
492 source_p
->localClient
->last
= rb_current_time();
495 if(chptr
->mode
.mode
& MODE_NOCOLOR
)
497 rb_strlcpy(text2
, text
, BUFSIZE
);
500 if (EmptyString(text
))
502 /* could be empty after colour stripping and
503 * that would cause problems later */
505 sendto_one(source_p
, form_str(ERR_NOTEXTTOSEND
), me
.name
, source_p
->name
);
510 /* chanops and voiced can flood their own channel with impunity */
511 if((result
= can_send(chptr
, source_p
, NULL
)))
513 if(result
== CAN_SEND_OPV
||
514 !flood_attack_channel(p_or_n
, source_p
, chptr
, chptr
->chname
))
516 if (p_or_n
!= PRIVMSG
&& chptr
->mode
.mode
& MODE_NONOTICE
)
518 sendto_one_numeric(source_p
, ERR_CANNOTSENDTOCHAN
,
519 form_str(ERR_CANNOTSENDTOCHAN
), chptr
->chname
);
522 if (p_or_n
!= NOTICE
&& chptr
->mode
.mode
& MODE_NOACTION
&&
523 !strncasecmp(text
+ 1, "ACTION", 6))
525 sendto_one_numeric(source_p
, ERR_CANNOTSENDTOCHAN
,
526 form_str(ERR_CANNOTSENDTOCHAN
), chptr
->chname
);
529 if (p_or_n
!= NOTICE
&& *text
== '\001' &&
530 strncasecmp(text
+ 1, "ACTION", 6))
532 if (chptr
->mode
.mode
& MODE_NOCTCP
)
534 sendto_one_numeric(source_p
, ERR_CANNOTSENDTOCHAN
,
535 form_str(ERR_CANNOTSENDTOCHAN
), chptr
->chname
);
538 else if (rb_dlink_list_length(&chptr
->locmembers
) > (unsigned)(GlobalSetOptions
.floodcount
/ 2))
539 source_p
->large_ctcp_sent
= rb_current_time();
541 sendto_channel_flags(client_p
, ALL_MEMBERS
, source_p
, chptr
,
542 "%s %s :%s", command
, chptr
->chname
, text
);
545 else if(chptr
->mode
.mode
& MODE_OPMODERATE
&&
546 (!(chptr
->mode
.mode
& MODE_NOPRIVMSGS
) ||
547 IsMember(source_p
, chptr
)))
549 if(!flood_attack_channel(p_or_n
, source_p
, chptr
, chptr
->chname
))
551 sendto_channel_opmod(client_p
, source_p
, chptr
,
558 sendto_one_numeric(source_p
, ERR_CANNOTSENDTOCHAN
,
559 form_str(ERR_CANNOTSENDTOCHAN
), chptr
->chname
);
565 * inputs - flag privmsg or notice
566 * - pointer to command "PRIVMSG" or "NOTICE"
567 * - pointer to client_p
568 * - pointer to source_p
569 * - pointer to channel
571 * side effects - message given channel ops
573 * XXX - We need to rework this a bit, it's a tad ugly. --nenolod
576 msg_channel_opmod(int p_or_n
, const char *command
,
577 struct Client
*client_p
, struct Client
*source_p
,
578 struct Channel
*chptr
, const char *text
)
582 if(chptr
->mode
.mode
& MODE_NOCOLOR
)
584 rb_strlcpy(text2
, text
, BUFSIZE
);
587 if (EmptyString(text
))
589 /* could be empty after colour stripping and
590 * that would cause problems later */
592 sendto_one(source_p
, form_str(ERR_NOTEXTTOSEND
), me
.name
, source_p
->name
);
597 if(chptr
->mode
.mode
& MODE_OPMODERATE
&&
598 (!(chptr
->mode
.mode
& MODE_NOPRIVMSGS
) ||
599 IsMember(source_p
, chptr
)))
601 if(!flood_attack_channel(p_or_n
, source_p
, chptr
, chptr
->chname
))
603 sendto_channel_opmod(client_p
, source_p
, chptr
,
610 sendto_one_numeric(source_p
, ERR_CANNOTSENDTOCHAN
,
611 form_str(ERR_CANNOTSENDTOCHAN
), chptr
->chname
);
618 * inputs - flag 0 if PRIVMSG 1 if NOTICE. RFC
619 * say NOTICE must not auto reply
620 * - pointer to command, "PRIVMSG" or "NOTICE"
621 * - pointer to client_p
622 * - pointer to source_p
623 * - pointer to channel
625 * - pointer to text to send
627 * side effects - message given channel either chanop or voice
630 msg_channel_flags(int p_or_n
, const char *command
, struct Client
*client_p
,
631 struct Client
*source_p
, struct Channel
*chptr
, int flags
, const char *text
)
636 if(flags
& CHFL_VOICE
)
638 type
= ONLY_CHANOPSVOICED
;
647 if(MyClient(source_p
))
649 /* idletime shouldnt be reset by notice --fl */
651 source_p
->localClient
->last
= rb_current_time();
654 sendto_channel_flags(client_p
, type
, source_p
, chptr
, "%s %c%s :%s",
655 command
, c
, chptr
->chname
, text
);
659 expire_tgchange(void *unused
)
662 rb_dlink_node
*ptr
, *next_ptr
;
664 RB_DLINK_FOREACH_SAFE(ptr
, next_ptr
, tgchange_list
.head
)
668 if(target
->expiry
< rb_current_time())
670 rb_dlinkDelete(ptr
, &tgchange_list
);
671 rb_patricia_remove(tgchange_tree
, target
->pnode
);
681 * inputs - flag 0 if PRIVMSG 1 if NOTICE. RFC
682 * say NOTICE must not auto reply
683 * - pointer to command, "PRIVMSG" or "NOTICE"
684 * - pointer to source_p source (struct Client *)
685 * - pointer to target_p target (struct Client *)
688 * side effects - message given channel either chanop or voice
691 msg_client(int p_or_n
, const char *command
,
692 struct Client
*source_p
, struct Client
*target_p
, const char *text
)
694 int do_floodcount
= 0;
696 if(MyClient(source_p
))
698 /* reset idle time for message only if its not to self
699 * and its not a notice */
701 source_p
->localClient
->last
= rb_current_time();
703 /* auto cprivmsg/cnotice */
704 do_floodcount
= !IsOper(source_p
) &&
705 !find_allowing_channel(source_p
, target_p
);
707 /* target change stuff, dont limit ctcp replies as that
708 * would allow people to start filling up random users
709 * targets just by ctcping them
711 if((p_or_n
!= NOTICE
|| *text
!= '\001') &&
712 ConfigFileEntry
.target_change
&& do_floodcount
)
714 if(!add_target(source_p
, target_p
))
716 sendto_one(source_p
, form_str(ERR_TARGCHANGE
),
717 me
.name
, source_p
->name
, target_p
->name
);
722 if (do_floodcount
&& p_or_n
== NOTICE
&& *text
== '\001' &&
723 target_p
->large_ctcp_sent
+ LARGE_CTCP_TIME
>= rb_current_time())
727 flood_attack_client(p_or_n
, source_p
, target_p
))
730 else if(source_p
->from
== target_p
->from
)
732 sendto_realops_snomask(SNO_DEBUG
, L_ALL
,
733 "Send message to %s[%s] dropped from %s(Fake Dir)",
734 target_p
->name
, target_p
->from
->name
, source_p
->name
);
738 if(MyConnect(source_p
) && (p_or_n
!= NOTICE
) && target_p
->user
&& target_p
->user
->away
)
739 sendto_one_numeric(source_p
, RPL_AWAY
, form_str(RPL_AWAY
),
740 target_p
->name
, target_p
->user
->away
);
742 if(MyClient(target_p
))
744 if (IsSetNoCTCP(target_p
) && p_or_n
!= NOTICE
&& *text
== '\001' && strncasecmp(text
+ 1, "ACTION", 6))
746 sendto_one_numeric(source_p
, ERR_NOCTCP
,
747 form_str(ERR_NOCTCP
),
750 /* XXX Controversial? allow opers always to send through a +g */
751 else if(!IsServer(source_p
) && (IsSetCallerId(target_p
) ||
752 (IsSetRegOnlyMsg(target_p
) && !source_p
->user
->suser
[0])))
754 /* Here is the anti-flood bot/spambot code -db */
755 if(accept_message(source_p
, target_p
) || IsOper(source_p
))
757 add_reply_target(target_p
, source_p
);
758 sendto_one(target_p
, ":%s!%s@%s %s %s :%s",
761 source_p
->host
, command
, target_p
->name
, text
);
763 else if (IsSetRegOnlyMsg(target_p
) && !source_p
->user
->suser
[0])
765 if (p_or_n
!= NOTICE
)
766 sendto_one_numeric(source_p
, ERR_NONONREG
,
767 form_str(ERR_NONONREG
),
772 /* check for accept, flag recipient incoming message */
775 sendto_one_numeric(source_p
, ERR_TARGUMODEG
,
776 form_str(ERR_TARGUMODEG
),
780 if((target_p
->localClient
->last_caller_id_time
+
781 ConfigFileEntry
.caller_id_wait
) < rb_current_time())
784 sendto_one_numeric(source_p
, RPL_TARGNOTIFY
,
785 form_str(RPL_TARGNOTIFY
),
788 add_reply_target(target_p
, source_p
);
789 sendto_one(target_p
, form_str(RPL_UMODEGMSG
),
790 me
.name
, target_p
->name
, source_p
->name
,
791 source_p
->username
, source_p
->host
);
793 target_p
->localClient
->last_caller_id_time
= rb_current_time();
799 add_reply_target(target_p
, source_p
);
800 sendto_anywhere(target_p
, source_p
, command
, ":%s", text
);
804 sendto_anywhere(target_p
, source_p
, command
, ":%s", text
);
810 * flood_attack_client
811 * inputs - flag 0 if PRIVMSG 1 if NOTICE. RFC
812 * say NOTICE must not auto reply
813 * - pointer to source Client
814 * - pointer to target Client
815 * output - 1 if target is under flood attack
816 * side effects - check for flood attack on target target_p
819 flood_attack_client(int p_or_n
, struct Client
*source_p
, struct Client
*target_p
)
823 /* Services could get many messages legitimately and
824 * can be messaged without rate limiting via aliases
825 * and msg user@server.
828 if(GlobalSetOptions
.floodcount
&& IsClient(source_p
) && source_p
!= target_p
&& !IsService(target_p
))
830 if((target_p
->first_received_message_time
+ 1) < rb_current_time())
832 delta
= rb_current_time() - target_p
->first_received_message_time
;
833 target_p
->received_number_of_privmsgs
-= delta
;
834 target_p
->first_received_message_time
= rb_current_time();
835 if(target_p
->received_number_of_privmsgs
<= 0)
837 target_p
->received_number_of_privmsgs
= 0;
838 target_p
->flood_noticed
= 0;
842 if((target_p
->received_number_of_privmsgs
>=
843 GlobalSetOptions
.floodcount
) || target_p
->flood_noticed
)
845 if(target_p
->flood_noticed
== 0)
847 sendto_realops_snomask(SNO_BOTS
, L_NETWIDE
,
848 "Possible Flooder %s[%s@%s] on %s target: %s",
849 source_p
->name
, source_p
->username
,
851 source_p
->servptr
->name
, target_p
->name
);
852 target_p
->flood_noticed
= 1;
853 /* add a bit of penalty */
854 target_p
->received_number_of_privmsgs
+= 2;
856 if(MyClient(source_p
) && (p_or_n
!= NOTICE
))
858 ":%s NOTICE %s :*** Message to %s throttled due to flooding",
859 me
.name
, source_p
->name
, target_p
->name
);
863 target_p
->received_number_of_privmsgs
++;
870 * flood_attack_channel
871 * inputs - flag 0 if PRIVMSG 1 if NOTICE. RFC
872 * says NOTICE must not auto reply
873 * - pointer to source Client
874 * - pointer to target channel
875 * output - 1 if target is under flood attack
876 * side effects - check for flood attack on target chptr
879 flood_attack_channel(int p_or_n
, struct Client
*source_p
, struct Channel
*chptr
, char *chname
)
883 if(GlobalSetOptions
.floodcount
&& MyClient(source_p
))
885 if((chptr
->first_received_message_time
+ 1) < rb_current_time())
887 delta
= rb_current_time() - chptr
->first_received_message_time
;
888 chptr
->received_number_of_privmsgs
-= delta
;
889 chptr
->first_received_message_time
= rb_current_time();
890 if(chptr
->received_number_of_privmsgs
<= 0)
892 chptr
->received_number_of_privmsgs
= 0;
893 chptr
->flood_noticed
= 0;
897 if((chptr
->received_number_of_privmsgs
>= GlobalSetOptions
.floodcount
)
898 || chptr
->flood_noticed
)
900 if(chptr
->flood_noticed
== 0)
902 sendto_realops_snomask(SNO_BOTS
, *chptr
->chname
== '&' ? L_ALL
: L_NETWIDE
,
903 "Possible Flooder %s[%s@%s] on %s target: %s",
904 source_p
->name
, source_p
->username
,
906 source_p
->servptr
->name
, chptr
->chname
);
907 chptr
->flood_noticed
= 1;
909 /* Add a bit of penalty */
910 chptr
->received_number_of_privmsgs
+= 2;
912 if(MyClient(source_p
) && (p_or_n
!= NOTICE
))
914 ":%s NOTICE %s :*** Message to %s throttled due to flooding",
915 me
.name
, source_p
->name
, chptr
->chname
);
919 chptr
->received_number_of_privmsgs
++;
929 * inputs - server pointer
931 * - nick stuff to grok for opers
932 * - text to send if grok
934 * side effects - all the traditional oper type messages are parsed here.
935 * i.e. "/msg #some.host."
936 * However, syntax has been changed.
937 * previous syntax "/msg #some.host.mask"
938 * now becomes "/msg $#some.host.mask"
939 * previous syntax of: "/msg $some.server.mask" remains
940 * This disambiguates the syntax.
943 handle_special(int p_or_n
, const char *command
, struct Client
*client_p
,
944 struct Client
*source_p
, const char *nick
, const char *text
)
946 struct Client
*target_p
;
950 /* user[%host]@server addressed?
951 * NOTE: users can send to user@server, but not user%host@server
954 if((server
= strchr(nick
, '@')) != NULL
)
956 if((target_p
= find_server(source_p
, server
+ 1)) == NULL
)
958 sendto_one_numeric(source_p
, ERR_NOSUCHSERVER
,
959 form_str(ERR_NOSUCHSERVER
), server
+ 1);
963 if(!IsOper(source_p
))
965 if(strchr(nick
, '%') || (strncmp(nick
, "opers", 5) == 0))
967 sendto_one_numeric(source_p
, ERR_NOSUCHNICK
,
968 form_str(ERR_NOSUCHNICK
), nick
);
973 /* somewhere else.. */
976 sendto_one(target_p
, ":%s %s %s :%s",
977 get_id(source_p
, target_p
), command
, nick
, text
);
981 /* Check if someones msg'ing opers@our.server */
982 if(strncmp(nick
, "opers@", 6) == 0)
984 sendto_realops_snomask(SNO_GENERAL
, L_ALL
, "To opers: From: %s: %s",
985 source_p
->name
, text
);
989 /* This was not very useful except for bypassing certain
990 * restrictions. Note that we still allow sending to
991 * remote servers this way, for messaging pseudoservers
992 * securely whether they have a service{} block or not.
995 sendto_one_numeric(source_p
, ERR_NOSUCHNICK
,
996 form_str(ERR_NOSUCHNICK
), nick
);
1001 * the following two cases allow masks in NOTICEs
1004 * Armin, 8Jun90 (gruner@informatik.tu-muenchen.de)
1006 if(IsOper(source_p
) && *nick
== '$')
1008 if((*(nick
+ 1) == '$' || *(nick
+ 1) == '#'))
1010 else if(MyOper(source_p
))
1012 sendto_one(source_p
,
1013 ":%s NOTICE %s :The command %s %s is no longer supported, please use $%s",
1014 me
.name
, source_p
->name
, command
, nick
, nick
);
1018 if(MyClient(source_p
) && !IsOperMassNotice(source_p
))
1020 sendto_one(source_p
, form_str(ERR_NOPRIVS
),
1021 me
.name
, source_p
->name
, "mass_notice");
1025 if((s
= strrchr(nick
, '.')) == NULL
)
1027 sendto_one_numeric(source_p
, ERR_NOTOPLEVEL
,
1028 form_str(ERR_NOTOPLEVEL
), nick
);
1032 if(*s
== '.' || *s
== '*' || *s
== '?')
1034 if(*s
== '*' || *s
== '?')
1036 sendto_one_numeric(source_p
, ERR_WILDTOPLEVEL
,
1037 form_str(ERR_WILDTOPLEVEL
), nick
);
1041 sendto_match_butone(IsServer(client_p
) ? client_p
: NULL
, source_p
,
1043 (*nick
== '#') ? MATCH_HOST
: MATCH_SERVER
,
1044 "%s $%s :%s", command
, nick
, text
);
1045 if (p_or_n
!= NOTICE
&& *text
== '\001')
1046 source_p
->large_ctcp_sent
= rb_current_time();