pissircd/src/modules/chanmodes/moderated.c

118 lines
3.6 KiB
C

/*
* Channel Mode +m
* (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/moderated",
"6.0",
"Channel Mode +m",
"UnrealIRCd Team",
"unrealircd-6",
};
/* Global variables */
Cmode_t EXTCMODE_MODERATED;
/* Forward declarations */
int moderated_can_send_to_channel(Client *client, Channel *channel, Membership *lp, const char **msg, const char **errmsg, SendType sendtype);
const char *moderated_pre_local_part(Client *client, Channel *channel, const char *text);
int moderated_can_set_topic(Client *client, Channel *channel, const char *topic, const char **errmsg);
/* Macros */
#define IsModerated(channel) (channel->mode.mode & EXTCMODE_MODERATED)
MOD_INIT()
{
CmodeInfo req;
MARK_AS_OFFICIAL_MODULE(modinfo);
memset(&req, 0, sizeof(req));
req.paracount = 0;
req.letter = 'm';
req.is_ok = extcmode_default_requirehalfop;
CmodeAdd(modinfo->handle, req, &EXTCMODE_MODERATED);
HookAdd(modinfo->handle, HOOKTYPE_CAN_SEND_TO_CHANNEL, 0, moderated_can_send_to_channel);
HookAddConstString(modinfo->handle, HOOKTYPE_PRE_LOCAL_PART, 0, moderated_pre_local_part);
HookAdd(modinfo->handle, HOOKTYPE_CAN_SET_TOPIC, 0, moderated_can_set_topic);
return MOD_SUCCESS;
}
MOD_LOAD()
{
return MOD_SUCCESS;
}
MOD_UNLOAD()
{
return MOD_SUCCESS;
}
int moderated_can_send_to_channel(Client *client, Channel *channel, Membership *m, const char **msg, const char **errmsg, SendType sendtype)
{
if (IsModerated(channel) && (!m || !check_channel_access_membership(m, "vhoaq")) &&
!op_can_override("channel:override:message:moderated",client,channel,NULL))
{
Hook *h;
for (h = Hooks[HOOKTYPE_CAN_BYPASS_CHANNEL_MESSAGE_RESTRICTION]; h; h = h->next)
{
int i = (*(h->func.intfunc))(client, channel, BYPASS_CHANMSG_MODERATED);
if (i == HOOK_ALLOW)
return HOOK_CONTINUE; /* bypass +m restriction */
if (i != HOOK_CONTINUE)
break;
}
*errmsg = "You need voice (+v)";
return HOOK_DENY; /* BLOCK message */
}
return HOOK_CONTINUE;
}
/** Remove PART reason too if the channel is +m, -t, and user not +vhoaq */
const char *moderated_pre_local_part(Client *client, Channel *channel, const char *text)
{
if (IsModerated(channel) && !check_channel_access(client, channel, "v") && !check_channel_access(client, channel, "h"))
return NULL;
return text;
}
int moderated_can_set_topic(Client *client, Channel *channel, const char *topic, const char **errmsg)
{
static char errmsg_buf[NICKLEN+256];
/* Channel is +m but user is not +vhoaq: reject the topic change */
if (has_channel_mode(channel, 'm') && !check_channel_access(client, channel, "vhoaq"))
{
char buf[512];
snprintf(buf, sizeof(buf), "Voice (+v) or higher is required in order to change the topic on %s (channel is +m)", channel->name);
buildnumeric(errmsg_buf, sizeof(errmsg_buf), client, ERR_CANNOTDOCOMMAND, "TOPIC", buf);
*errmsg = errmsg_buf;
return EX_DENY;
}
return EX_ALLOW;
}