solanum/modules/core/m_part.c

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/*
* ircd-ratbox: A slightly useful ircd.
* m_part.c: Parts a user from a channel.
*
* Copyright (C) 1990 Jarkko Oikarinen and University of Oulu, Co Center
* Copyright (C) 1996-2002 Hybrid Development Team
* Copyright (C) 2002-2005 ircd-ratbox development team
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
* USA
*/
#include "stdinc.h"
#include "channel.h"
#include "client.h"
#include "hash.h"
#include "match.h"
#include "ircd.h"
#include "numeric.h"
#include "send.h"
#include "s_serv.h"
#include "msg.h"
#include "parse.h"
#include "modules.h"
#include "s_conf.h"
#include "packet.h"
#include "inline/stringops.h"
#include "hook.h"
#include "s_newconf.h"
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static const char part_desc[] = "Provides the PART command to leave a channel";
static void m_part(struct MsgBuf *, struct Client *, struct Client *, int, const char **);
struct Message part_msgtab = {
"PART", 0, 0, 0, 0,
{mg_unreg, {m_part, 2}, {m_part, 2}, mg_ignore, mg_ignore, {m_part, 2}}
};
mapi_clist_av1 part_clist[] = { &part_msgtab, NULL };
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DECLARE_MODULE_AV2(part, NULL, NULL, part_clist, NULL, NULL, NULL, NULL, part_desc);
static void part_one_client(struct Client *client_p,
struct Client *source_p, char *name,
const char *reason);
static bool can_send_part(struct Client *source_p, struct Channel *chptr, struct membership *msptr);
static bool do_message_hook(struct Client *source_p, struct Channel *chptr, const char **reason);
/*
** m_part
** parv[1] = channel
** parv[2] = reason
*/
static void
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m_part(struct MsgBuf *msgbuf_p, struct Client *client_p, struct Client *source_p, int parc, const char *parv[])
{
char *p, *name;
char reason[REASONLEN + 1];
char *s = LOCAL_COPY(parv[1]);
reason[0] = '\0';
if(parc > 2)
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rb_strlcpy(reason, parv[2], sizeof(reason));
name = rb_strtok_r(s, ",", &p);
/* Finish the flood grace period... */
if(MyClient(source_p) && !IsFloodDone(source_p))
flood_endgrace(source_p);
while(name)
{
part_one_client(client_p, source_p, name, reason);
name = rb_strtok_r(NULL, ",", &p);
}
}
/*
* part_one_client
*
* inputs - pointer to server
* - pointer to source client to remove
* - char pointer of name of channel to remove from
* output - none
* side effects - remove ONE client given the channel name
*/
static void
part_one_client(struct Client *client_p, struct Client *source_p, char *name, const char *reason)
{
struct Channel *chptr;
struct membership *msptr;
if((chptr = find_channel(name)) == NULL)
{
sendto_one_numeric(source_p, ERR_NOSUCHCHANNEL, form_str(ERR_NOSUCHCHANNEL), name);
return;
}
msptr = find_channel_membership(chptr, source_p);
if(msptr == NULL)
{
sendto_one_numeric(source_p, ERR_NOTONCHANNEL, form_str(ERR_NOTONCHANNEL), name);
return;
}
if(MyConnect(source_p) && !IsOperGeneral(source_p) && !IsExemptSpambot(source_p))
check_spambot_warning(source_p, NULL);
/*
* Remove user from the old channel (if any)
* only allow /part reasons in -m chans
*/
if(!EmptyString(reason) &&
(!MyConnect(source_p) ||
(can_send_part(source_p, chptr, msptr) && do_message_hook(source_p, chptr, &reason))
)
)
{
sendto_server(client_p, chptr, CAP_TS6, NOCAPS,
":%s PART %s :%s", use_id(source_p), chptr->chname, reason);
sendto_channel_local(source_p, ALL_MEMBERS, chptr, ":%s!%s@%s PART %s :%s",
source_p->name, source_p->username,
source_p->host, chptr->chname, reason);
}
else
{
sendto_server(client_p, chptr, CAP_TS6, NOCAPS,
":%s PART %s", use_id(source_p), chptr->chname);
sendto_channel_local(source_p, ALL_MEMBERS, chptr, ":%s!%s@%s PART %s",
source_p->name, source_p->username,
source_p->host, chptr->chname);
}
remove_user_from_channel(msptr);
}
/*
* can_send_part - whether a part message can be sent.
*
* inputs:
* - client parting
* - channel being parted
* - membership pointer
* outputs:
* - true if message allowed
* - false if message denied
* side effects:
* - none.
*/
static bool
can_send_part(struct Client *source_p, struct Channel *chptr, struct membership *msptr)
{
if (!can_send(chptr, source_p, msptr))
return false;
/* Allow chanops to bypass anti_spam_exit_message_time for part messages. */
if (is_chanop(msptr))
return true;
return (source_p->localClient->firsttime + ConfigFileEntry.anti_spam_exit_message_time) < rb_current_time();
}
/*
* do_message_hook - execute the message hook on a part message reason.
*
* inputs:
* - client parting
* - channel being parted
* - pointer to reason
* outputs:
* - true if message is allowed
* - false if message is denied or message is now empty
* side effects:
* - reason may be modified.
*/
static bool
do_message_hook(struct Client *source_p, struct Channel *chptr, const char **reason)
{
hook_data_privmsg_channel hdata;
hdata.msgtype = MESSAGE_TYPE_PART;
hdata.source_p = source_p;
hdata.chptr = chptr;
hdata.text = *reason;
hdata.approved = 0;
call_hook(h_privmsg_channel, &hdata);
/* The reason may have been changed by a hook... */
*reason = hdata.text;
return (hdata.approved == 0 && !EmptyString(*reason));
}