148 lines
3.8 KiB
C
148 lines
3.8 KiB
C
/*
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* modules/um_regonlymsg.c
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* Copyright (c) 2020 Ariadne Conill <ariadne@dereferenced.org>
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are
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* met:
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*
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* 1. Redistributions of source code must retain the above copyright notice,
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* this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. The name of the author may not be used to endorse or promote products
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* derived from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT,
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* INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
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* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
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* IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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#include "stdinc.h"
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#include "modules.h"
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#include "hook.h"
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#include "client.h"
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#include "ircd.h"
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#include "send.h"
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#include "hash.h"
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#include "s_conf.h"
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#include "s_user.h"
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#include "s_serv.h"
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#include "numeric.h"
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#include "privilege.h"
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#include "s_newconf.h"
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#include "logger.h"
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static int
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um_regonlymsg_modinit(void)
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{
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user_modes['R'] = find_umode_slot();
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construct_umodebuf();
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if (!user_modes['R'])
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{
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ierror("um_regonlymsg: unable to allocate usermode slot for +R, unloading module");
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return -1;
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}
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return 0;
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}
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static void
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um_regonlymsg_moddeinit(void)
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{
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user_modes['R'] = 0;
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construct_umodebuf();
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}
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#define IsSetRegOnlyMsg(c) ((c->umodes & user_modes['R']) == user_modes['R'])
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static const char um_regonlymsg_desc[] =
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"Provides usermode +R which restricts messages from unregistered users.";
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static bool
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allow_message(struct Client *source_p, struct Client *target_p)
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{
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if (!MyClient(target_p))
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return true;
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if (!IsSetRegOnlyMsg(target_p))
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return true;
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if (IsServer(source_p))
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return true;
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/* XXX: controversial? allow opers to send through +R */
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if (IsOper(source_p))
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return true;
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if (accept_message(source_p, target_p))
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return true;
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if (source_p->user->suser[0])
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return true;
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return false;
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}
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static void
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h_hdl_invite(void *vdata)
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{
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hook_data_channel_approval *data = vdata;
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struct Client *source_p = data->client;
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struct Client *target_p = data->target;
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static char errorbuf[BUFSIZE];
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if (data->approved)
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return;
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if (allow_message(source_p, target_p))
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return;
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snprintf(errorbuf, sizeof errorbuf, form_str(ERR_NONONREG),
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target_p->name);
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data->approved = ERR_NONONREG;
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data->error = errorbuf;
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}
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static void
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h_hdl_privmsg_user(void *vdata)
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{
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hook_data_privmsg_user *data = vdata;
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struct Client *source_p = data->source_p;
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struct Client *target_p = data->target_p;
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if (data->approved)
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return;
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if (allow_message(source_p, target_p))
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return;
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if (data->msgtype == MESSAGE_TYPE_NOTICE)
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return;
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sendto_one_numeric(source_p, ERR_NONONREG, form_str(ERR_NONONREG),
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target_p->name);
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data->approved = ERR_NONONREG;
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}
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static mapi_hfn_list_av1 um_regonlymsg_hfnlist[] = {
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{ "invite", h_hdl_invite },
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{ "privmsg_user", h_hdl_privmsg_user },
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{ NULL, NULL }
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};
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DECLARE_MODULE_AV2(um_regonlymsg, um_regonlymsg_modinit, um_regonlymsg_moddeinit,
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NULL, NULL, um_regonlymsg_hfnlist, NULL, NULL, um_regonlymsg_desc);
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