pissircd/src/modules/chanmodes/noexternalmsgs.c

90 lines
2.4 KiB
C

/*
* Channel Mode +n
* (C) Copyright 2021 Syzop and the UnrealIRCd 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 1, 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., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#include "unrealircd.h"
ModuleHeader MOD_HEADER
= {
"chanmodes/noexternalmsgs",
"6.0",
"Channel Mode +n",
"UnrealIRCd Team",
"unrealircd-6",
};
Cmode_t EXTCMODE_NO_EXTERNAL_MESSAGES;
#define IsNoExternalMessages(channel) (channel->mode.mode & EXTCMODE_NO_EXTERNAL_MESSAGES)
int noexternalmsgs_can_send_to_channel(Client *client, Channel *channel, Membership *lp, const char **msg, const char **errmsg, SendType sendtype);
MOD_INIT()
{
CmodeInfo req;
MARK_AS_OFFICIAL_MODULE(modinfo);
memset(&req, 0, sizeof(req));
req.paracount = 0;
req.letter = 'n';
req.is_ok = extcmode_default_requirehalfop;
CmodeAdd(modinfo->handle, req, &EXTCMODE_NO_EXTERNAL_MESSAGES);
HookAdd(modinfo->handle, HOOKTYPE_CAN_SEND_TO_CHANNEL, 0, noexternalmsgs_can_send_to_channel);
return MOD_SUCCESS;
}
MOD_LOAD()
{
return MOD_SUCCESS;
}
MOD_UNLOAD()
{
return MOD_SUCCESS;
}
int noexternalmsgs_can_send_to_channel(Client *client, Channel *channel, Membership *lp, const char **msg, const char **errmsg, SendType sendtype)
{
if (IsNoExternalMessages(channel) && !IsMember(client,channel))
{
/* Channel does not accept external messages (+n).
* Reject, unless HOOKTYPE_CAN_BYPASS_NO_EXTERNAL_MSGS tells otherwise.
*/
Hook *h;
int i;
for (h = Hooks[HOOKTYPE_CAN_BYPASS_CHANNEL_MESSAGE_RESTRICTION]; h; h = h->next)
{
i = (*(h->func.intfunc))(client, channel, BYPASS_CHANMSG_EXTERNAL);
if (i == HOOK_ALLOW)
return HOOK_CONTINUE; /* bypass +n restriction */
if (i != HOOK_CONTINUE)
break;
}
*errmsg = "No external channel messages";
return HOOK_DENY; /* BLOCK message */
}
return HOOK_CONTINUE;
}