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jfr.im git - solanum.git/blob - modules/m_tb.c
3 * Copyright (C) 2003 Lee Hardy <lee@leeh.co.uk>
4 * Copyright (C) 2003-2005 ircd-ratbox development team
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions are
10 * 1.Redistributions of source code must retain the above copyright notice,
11 * this list of conditions and the following disclaimer.
12 * 2.Redistributions in binary form must reproduce the above copyright
13 * notice, this list of conditions and the following disclaimer in the
14 * documentation and/or other materials provided with the distribution.
15 * 3.The name of the author may not be used to endorse or promote products
16 * derived from this software without specific prior written permission.
18 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
19 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
20 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
21 * DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT,
22 * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
23 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
24 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
25 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
26 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
27 * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
28 * POSSIBILITY OF SUCH DAMAGE.
45 static const char tb_desc
[] =
46 "Provides TS6 TB and ETB commands for topic bursting between servers";
48 static void ms_tb(struct MsgBuf
*msgbuf_p
, struct Client
*client_p
, struct Client
*source_p
, int parc
, const char *parv
[]);
49 static void ms_etb(struct MsgBuf
*msgbuf_p
, struct Client
*client_p
, struct Client
*source_p
, int parc
, const char *parv
[]);
51 struct Message tb_msgtab
= {
53 {mg_unreg
, mg_ignore
, mg_ignore
, {ms_tb
, 4}, mg_ignore
, mg_ignore
}
56 struct Message etb_msgtab
= {
58 {mg_unreg
, mg_ignore
, {ms_etb
, 5}, {ms_etb
, 5}, mg_ignore
, mg_ignore
}
61 mapi_clist_av1 tb_clist
[] = { &tb_msgtab
, &etb_msgtab
, NULL
};
62 DECLARE_MODULE_AV2(tb
, NULL
, NULL
, tb_clist
, NULL
, NULL
, NULL
, NULL
, tb_desc
);
68 * parv[3] - optional topicwho/topic
72 ms_tb(struct MsgBuf
*msgbuf_p
, struct Client
*client_p
, struct Client
*source_p
, int parc
, const char *parv
[])
74 struct Channel
*chptr
;
76 const char *newtopicwho
;
78 struct Client
*fakesource_p
;
80 chptr
= find_channel(parv
[1]);
85 newtopicts
= atol(parv
[2]);
87 /* Hide connecting server on netburst -- jilles */
88 if (ConfigServerHide
.flatten_links
&& !HasSentEob(source_p
))
91 fakesource_p
= source_p
;
96 newtopicwho
= parv
[3];
101 newtopicwho
= fakesource_p
->name
;
104 if (EmptyString(newtopic
))
107 if(chptr
->topic
== NULL
|| chptr
->topic_time
> newtopicts
)
109 /* its possible the topicts is a few seconds out on some
110 * servers, due to lag when propagating it, so if theyre the
111 * same topic just drop the message --fl
113 if(chptr
->topic
!= NULL
&& strcmp(chptr
->topic
, newtopic
) == 0)
116 set_channel_topic(chptr
, newtopic
, newtopicwho
, newtopicts
);
117 sendto_channel_local(ALL_MEMBERS
, chptr
, ":%s TOPIC %s :%s",
118 fakesource_p
->name
, chptr
->chname
, newtopic
);
119 sendto_server(client_p
, chptr
, CAP_TB
|CAP_TS6
, NOCAPS
,
120 ":%s TB %s %ld %s%s:%s",
121 use_id(source_p
), chptr
->chname
, (long) chptr
->topic_time
,
122 ConfigChannel
.burst_topicwho
? chptr
->topic_info
: "",
123 ConfigChannel
.burst_topicwho
? " " : "", chptr
->topic
);
129 * parv[1] - channel ts
136 ms_etb(struct MsgBuf
*msgbuf_p
, struct Client
*client_p
, struct Client
*source_p
, int parc
, const char *parv
[])
138 struct Channel
*chptr
;
139 const char *newtopic
;
140 const char *newtopicwho
;
141 time_t channelts
, newtopicts
;
142 struct Client
*fakesource_p
, *source_server_p
;
143 int textchange
, can_use_tb
, member
;
145 channelts
= atol(parv
[1]);
146 chptr
= find_channel(parv
[2]);
151 newtopicts
= atol(parv
[3]);
153 /* Hide connecting server on netburst -- jilles */
154 if (IsServer(source_p
) && ConfigServerHide
.flatten_links
&&
155 !HasSentEob(source_p
))
158 fakesource_p
= source_p
;
160 newtopicwho
= parv
[4];
161 newtopic
= parv
[parc
- 1];
163 if(chptr
->topic
== NULL
|| chptr
->channelts
> channelts
||
164 (chptr
->channelts
== channelts
&& chptr
->topic_time
< newtopicts
))
166 textchange
= chptr
->topic
== NULL
|| strcmp(chptr
->topic
, newtopic
);
167 can_use_tb
= textchange
&& !EmptyString(newtopic
) &&
168 (chptr
->topic
== NULL
|| chptr
->topic_time
> newtopicts
);
170 set_channel_topic(chptr
, newtopic
, newtopicwho
, newtopicts
);
171 newtopic
= chptr
->topic
? chptr
->topic
: "";
172 if (chptr
->topic_info
)
173 newtopicwho
= chptr
->topic_info
;
175 /* Do not send a textually identical topic to clients,
176 * but do propagate the new topicts/topicwho to servers.
180 if (IsPerson(fakesource_p
))
181 sendto_channel_local(ALL_MEMBERS
, chptr
,
182 ":%s!%s@%s TOPIC %s :%s",
184 fakesource_p
->username
,
189 sendto_channel_local(ALL_MEMBERS
, chptr
,
192 chptr
->chname
, newtopic
);
194 /* Propagate channelts as given, because an older channelts
197 sendto_server(client_p
, chptr
, CAP_EOPMOD
|CAP_TS6
, NOCAPS
,
198 ":%s ETB %ld %s %ld %s :%s",
199 use_id(source_p
), (long)channelts
, chptr
->chname
,
200 (long)newtopicts
, newtopicwho
, newtopic
);
201 source_server_p
= IsServer(source_p
) ? source_p
: source_p
->servptr
;
203 sendto_server(client_p
, chptr
, CAP_TB
|CAP_TS6
, CAP_EOPMOD
,
204 ":%s TB %s %ld %s :%s",
205 use_id(source_server_p
),
206 chptr
->chname
, (long)newtopicts
,
207 newtopicwho
, newtopic
);
208 else if (IsPerson(source_p
) && textchange
)
210 member
= IsMember(source_p
, chptr
);
212 sendto_server(client_p
, chptr
, CAP_TS6
, CAP_EOPMOD
,
213 ":%s SJOIN %ld %s + :@%s",
214 use_id(source_server_p
),
215 (long)chptr
->channelts
,
216 chptr
->chname
, use_id(source_p
));
217 if (EmptyString(newtopic
) ||
218 newtopicts
>= rb_current_time() - 60)
219 sendto_server(client_p
, chptr
, CAP_TS6
, CAP_EOPMOD
,
222 chptr
->chname
, newtopic
);
225 sendto_server(client_p
, chptr
, CAP_TS6
, CAP_EOPMOD
,
229 sendto_server(client_p
, chptr
, CAP_TB
|CAP_TS6
, CAP_EOPMOD
,
230 ":%s TB %s %ld %s :%s",
231 use_id(source_server_p
),
232 chptr
->chname
, (long)newtopicts
,
233 newtopicwho
, newtopic
);
236 sendto_server(client_p
, chptr
, CAP_TS6
, CAP_EOPMOD
,
237 ":%s PART %s :Topic set for %s",
239 chptr
->chname
, newtopicwho
);
243 /* Should not send :server ETB if not all servers
246 sendto_server(client_p
, chptr
, CAP_TS6
, CAP_EOPMOD
,
247 ":%s NOTICE %s :*** Notice -- Dropping topic change for %s",
248 me
.id
, chptr
->chname
, chptr
->chname
);