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/* modules/m_tb.c
*
* Copyright (C) 2003 Lee Hardy <lee@leeh.co.uk>
* Copyright (C) 2003-2005 ircd-ratbox development team
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met:
*
* 1.Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
* 2.Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3.The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT,
* INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
* IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*
* $Id: m_tb.c 1349 2006-05-17 17:37:46Z jilles $
*/
#include "stdinc.h"
#include "send.h"
#include "channel.h"
#include "client.h"
#include "common.h"
#include "config.h"
#include "ircd.h"
#include "match.h"
#include "s_conf.h"
#include "msg.h"
#include "modules.h"
#include "hash.h"
#include "s_serv.h"
static int ms_tb(struct Client *client_p, struct Client *source_p, int parc, const char *parv[]);
static int ms_etb(struct Client *client_p, struct Client *source_p, int parc, const char *parv[]);
struct Message tb_msgtab = {
"TB", 0, 0, 0, MFLG_SLOW,
{mg_unreg, mg_ignore, mg_ignore, {ms_tb, 4}, mg_ignore, mg_ignore}
};
struct Message etb_msgtab = {
"ETB", 0, 0, 0, MFLG_SLOW,
{mg_unreg, mg_ignore, {ms_etb, 5}, {ms_etb, 5}, mg_ignore, mg_ignore}
};
mapi_clist_av1 tb_clist[] = { &tb_msgtab, &etb_msgtab, NULL };
DECLARE_MODULE_AV1(tb, NULL, NULL, tb_clist, NULL, NULL, "$Revision: 1349 $");
/* m_tb()
*
* parv[1] - channel
* parv[2] - topic ts
* parv[3] - optional topicwho/topic
* parv[4] - topic
*/
static int
ms_tb(struct Client *client_p, struct Client *source_p, int parc, const char *parv[])
{
struct Channel *chptr;
const char *newtopic;
const char *newtopicwho;
time_t newtopicts;
struct Client *fakesource_p;
chptr = find_channel(parv[1]);
if(chptr == NULL)
return 0;
newtopicts = atol(parv[2]);
/* Hide connecting server on netburst -- jilles */
if (ConfigServerHide.flatten_links && !HasSentEob(source_p))
fakesource_p = &me;
else
fakesource_p = source_p;
if(parc == 5)
{
newtopic = parv[4];
newtopicwho = parv[3];
}
else
{
newtopic = parv[3];
newtopicwho = fakesource_p->name;
}
if (EmptyString(newtopic))
return 0;
if(chptr->topic == NULL || chptr->topic_time > newtopicts)
{
/* its possible the topicts is a few seconds out on some
* servers, due to lag when propagating it, so if theyre the
* same topic just drop the message --fl
*/
if(chptr->topic != NULL && strcmp(chptr->topic, newtopic) == 0)
return 0;
set_channel_topic(chptr, newtopic, newtopicwho, newtopicts);
sendto_channel_local(ALL_MEMBERS, chptr, ":%s TOPIC %s :%s",
fakesource_p->name, chptr->chname, newtopic);
sendto_server(client_p, chptr, CAP_TB|CAP_TS6, NOCAPS,
":%s TB %s %ld %s%s:%s",
use_id(source_p), chptr->chname, (long) chptr->topic_time,
ConfigChannel.burst_topicwho ? chptr->topic_info : "",
ConfigChannel.burst_topicwho ? " " : "", chptr->topic);
}
return 0;
}
/* ms_etb()
*
* parv[1] - channel ts
* parv[2] - channel
* parv[3] - topic ts
* parv[4] - topicwho
* parv[5] - topic
*/
static int
ms_etb(struct Client *client_p, struct Client *source_p, int parc, const char *parv[])
{
struct Channel *chptr;
const char *newtopic;
const char *newtopicwho;
time_t channelts, newtopicts;
struct Client *fakesource_p, *source_server_p;
int textchange, can_use_tb, member;
channelts = atol(parv[1]);
chptr = find_channel(parv[2]);
if(chptr == NULL)
return 0;
newtopicts = atol(parv[3]);
/* Hide connecting server on netburst -- jilles */
if (IsServer(source_p) && ConfigServerHide.flatten_links &&
!HasSentEob(source_p))
fakesource_p = &me;
else
fakesource_p = source_p;
newtopicwho = parv[4];
newtopic = parv[parc - 1];
if(chptr->topic == NULL || chptr->channelts > channelts ||
(chptr->channelts == channelts && chptr->topic_time < newtopicts))
{
textchange = chptr->topic == NULL || strcmp(chptr->topic, newtopic);
can_use_tb = textchange && !EmptyString(newtopic) &&
(chptr->topic == NULL || chptr->topic_time > newtopicts);
set_channel_topic(chptr, newtopic, newtopicwho, newtopicts);
newtopic = chptr->topic ? chptr->topic : "";
if (chptr->topic_info)
newtopicwho = chptr->topic_info;
/* Do not send a textually identical topic to clients,
* but do propagate the new topicts/topicwho to servers.
*/
if(textchange)
{
if (IsPerson(fakesource_p))
sendto_channel_local(ALL_MEMBERS, chptr,
":%s!%s@%s TOPIC %s :%s",
fakesource_p->name,
fakesource_p->username,
fakesource_p->host,
chptr->chname,
newtopic);
else
sendto_channel_local(ALL_MEMBERS, chptr,
":%s TOPIC %s :%s",
fakesource_p->name,
chptr->chname, newtopic);
}
/* Propagate channelts as given, because an older channelts
* forces any change.
*/
sendto_server(client_p, chptr, CAP_EOPMOD|CAP_TS6, NOCAPS,
":%s ETB %ld %s %ld %s :%s",
use_id(source_p), (long)channelts, chptr->chname,
(long)newtopicts, newtopicwho, newtopic);
source_server_p = IsServer(source_p) ? source_p : source_p->servptr;
if (can_use_tb)
sendto_server(client_p, chptr, CAP_TB|CAP_TS6, CAP_EOPMOD,
":%s TB %s %ld %s :%s",
use_id(source_server_p),
chptr->chname, (long)newtopicts,
newtopicwho, newtopic);
else if (IsPerson(source_p) && textchange)
{
member = IsMember(source_p, chptr);
if (!member)
sendto_server(client_p, chptr, CAP_TS6, CAP_EOPMOD,
":%s SJOIN %ld %s + :@%s",
use_id(source_server_p),
(long)chptr->channelts,
chptr->chname, use_id(source_p));
if (EmptyString(newtopic) ||
newtopicts >= rb_current_time() - 60)
sendto_server(client_p, chptr, CAP_TS6, CAP_EOPMOD,
":%s TOPIC %s :%s",
use_id(source_p),
chptr->chname, newtopic);
else
{
sendto_server(client_p, chptr, CAP_TS6, CAP_EOPMOD,
":%s TOPIC %s :%s",
use_id(source_p),
chptr->chname, "");
sendto_server(client_p, chptr, CAP_TB|CAP_TS6, CAP_EOPMOD,
":%s TB %s %ld %s :%s",
use_id(source_server_p),
chptr->chname, (long)newtopicts,
newtopicwho, newtopic);
}
if (!member)
sendto_server(client_p, chptr, CAP_TS6, CAP_EOPMOD,
":%s PART %s :Topic set for %s",
use_id(source_p),
chptr->chname, newtopicwho);
}
else if (textchange)
{
/* Should not send :server ETB if not all servers
* support EOPMOD.
*/
sendto_server(client_p, chptr, CAP_TS6, CAP_EOPMOD,
":%s NOTICE %s :*** Notice -- Dropping topic change for %s",
me.id, chptr->chname, chptr->chname);
}
}
return 0;
}
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