unrealircd

- supernets unrealircd source & configuration
git clone git://git.acid.vegas/unrealircd.git
noexternalmsgs.c (2413B)
      1 /*
      2  * Channel Mode +n
      3  * (C) Copyright 2021 Syzop and the UnrealIRCd team
      4  *
      5  * This program is free software; you can redistribute it and/or modify
      6  * it under the terms of the GNU General Public License as published by
      7  * the Free Software Foundation; either version 1, or (at your option)
      8  * any later version.
      9  *
     10  * This program is distributed in the hope that it will be useful,
     11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
     12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
     13  * GNU General Public License for more details.
     14  *
     15  * You should have received a copy of the GNU General Public License
     16  * along with this program; if not, write to the Free Software
     17  * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
     18  */
     19 
     20 #include "unrealircd.h"
     21 
     22 
     23 ModuleHeader MOD_HEADER
     24   = {
     25 	"chanmodes/noexternalmsgs",
     26 	"6.0",
     27 	"Channel Mode +n",
     28 	"UnrealIRCd Team",
     29 	"unrealircd-6",
     30     };
     31 
     32 Cmode_t EXTCMODE_NO_EXTERNAL_MESSAGES;
     33 
     34 #define IsNoExternalMessages(channel)    (channel->mode.mode & EXTCMODE_NO_EXTERNAL_MESSAGES)
     35 
     36 int noexternalmsgs_can_send_to_channel(Client *client, Channel *channel, Membership *lp, const char **msg, const char **errmsg, SendType sendtype);
     37 
     38 MOD_INIT()
     39 {
     40 	CmodeInfo req;
     41 
     42 	MARK_AS_OFFICIAL_MODULE(modinfo);
     43 
     44 	memset(&req, 0, sizeof(req));
     45 	req.paracount = 0;
     46 	req.letter = 'n';
     47 	req.is_ok = extcmode_default_requirehalfop;
     48 	CmodeAdd(modinfo->handle, req, &EXTCMODE_NO_EXTERNAL_MESSAGES);
     49 
     50 	HookAdd(modinfo->handle, HOOKTYPE_CAN_SEND_TO_CHANNEL, 0, noexternalmsgs_can_send_to_channel);
     51 
     52 	return MOD_SUCCESS;
     53 }
     54 
     55 MOD_LOAD()
     56 {
     57 	return MOD_SUCCESS;
     58 }
     59 
     60 MOD_UNLOAD()
     61 {
     62 	return MOD_SUCCESS;
     63 }
     64 
     65 int noexternalmsgs_can_send_to_channel(Client *client, Channel *channel, Membership *lp, const char **msg, const char **errmsg, SendType sendtype)
     66 {
     67 	if (IsNoExternalMessages(channel) && !IsMember(client,channel))
     68 	{
     69 		/* Channel does not accept external messages (+n).
     70 		 * Reject, unless HOOKTYPE_CAN_BYPASS_NO_EXTERNAL_MSGS tells otherwise.
     71 		 */
     72 		Hook *h;
     73 		int i;
     74 
     75 		for (h = Hooks[HOOKTYPE_CAN_BYPASS_CHANNEL_MESSAGE_RESTRICTION]; h; h = h->next)
     76 		{
     77 			i = (*(h->func.intfunc))(client, channel, BYPASS_CHANMSG_EXTERNAL);
     78 			if (i == HOOK_ALLOW)
     79 				return HOOK_CONTINUE; /* bypass +n restriction */
     80 			if (i != HOOK_CONTINUE)
     81 				break;
     82 		}
     83 
     84 		*errmsg = "No external channel messages";
     85 		return HOOK_DENY; /* BLOCK message */
     86 	}
     87 
     88 	return HOOK_CONTINUE;
     89 }