unrealircd

- supernets unrealircd source & configuration
git clone git://git.acid.vegas/unrealircd.git
inchannel.c (3710B)
      1 /*
      2  * Extended ban: "in channel?" (+b ~c:#chan)
      3  * (C) Copyright 2003-.. Bram Matthys (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 #include "unrealircd.h"
     20 
     21 ModuleHeader MOD_HEADER
     22 = {
     23 	"extbans/inchannel",
     24 	"4.2",
     25 	"ExtBan ~c - banned when in specified channel",
     26 	"UnrealIRCd Team",
     27 	"unrealircd-6",
     28 };
     29 
     30 /* Forward declarations */
     31 int extban_inchannel_is_ok(BanContext *b);
     32 const char *extban_inchannel_conv_param(BanContext *b, Extban *extban);
     33 int extban_inchannel_is_banned(BanContext *b);
     34 
     35 Extban *register_channel_extban(ModuleInfo *modinfo)
     36 {
     37 	ExtbanInfo req;
     38 
     39 	memset(&req, 0, sizeof(req));
     40 	req.letter = 'c';
     41 	req.name = "channel";
     42 	req.is_ok = extban_inchannel_is_ok;
     43 	req.conv_param = extban_inchannel_conv_param;
     44 	req.is_banned = extban_inchannel_is_banned;
     45 	req.is_banned_events = BANCHK_ALL|BANCHK_TKL;
     46 	req.options = EXTBOPT_INVEX|EXTBOPT_TKL;
     47 	return ExtbanAdd(modinfo->handle, req);
     48 }
     49 
     50 MOD_TEST()
     51 {
     52 	MARK_AS_OFFICIAL_MODULE(modinfo);
     53 	if (!register_channel_extban(modinfo))
     54 	{
     55 		config_error("could not register extended ban type");
     56 		return MOD_FAILED;
     57 	}
     58 
     59 	return MOD_SUCCESS;
     60 }
     61 
     62 MOD_INIT()
     63 {
     64 	MARK_AS_OFFICIAL_MODULE(modinfo);
     65 	if (!register_channel_extban(modinfo))
     66 	{
     67 		config_error("could not register extended ban type");
     68 		return MOD_FAILED;
     69 	}
     70 
     71 	return MOD_SUCCESS;
     72 }
     73 
     74 MOD_LOAD()
     75 {
     76 	return MOD_SUCCESS;
     77 }
     78 
     79 MOD_UNLOAD()
     80 {
     81 	return MOD_SUCCESS;
     82 }
     83 
     84 const char *extban_inchannel_conv_param(BanContext *b, Extban *extban)
     85 {
     86 	static char retbuf[CHANNELLEN+6];
     87 	char *chan, *p, symbol='\0';
     88 
     89 	strlcpy(retbuf, b->banstr, sizeof(retbuf));
     90 	chan = retbuf;
     91 
     92 	if ((*chan == '+') || (*chan == '%') || (*chan == '%') ||
     93 	    (*chan == '@') || (*chan == '&') || (*chan == '~'))
     94 	    chan++;
     95 
     96 	if ((*chan != '#') && (*chan != '*') && (*chan != '?'))
     97 		return NULL;
     98 
     99 	if (!valid_channelname(chan))
    100 		return NULL;
    101 
    102 	p = strchr(chan, ':'); /* ~r:#chan:*.blah.net is not allowed (for now) */
    103 	if (p)
    104 		*p = '\0';
    105 
    106 	/* on a sidenote '#' is allowed because it's a valid channel (atm) */
    107 	return retbuf;
    108 }
    109 
    110 /* The only purpose of this function is a temporary workaround to prevent a desync.. pfff */
    111 int extban_inchannel_is_ok(BanContext *b)
    112 {
    113 	const char *p = b->banstr;
    114 
    115 	if ((b->is_ok_check == EXBCHK_PARAM) && MyUser(b->client) && (b->what == MODE_ADD) && (strlen(b->banstr) > 3))
    116 	{
    117 		if ((*p == '+') || (*p == '%') || (*p == '%') ||
    118 		    (*p == '@') || (*p == '&') || (*p == '~'))
    119 		    p++;
    120 
    121 		if (*p != '#')
    122 		{
    123 			sendnotice(b->client, "Please use a # in the channelname (eg: ~c:#*blah*)");
    124 			return 0;
    125 		}
    126 	}
    127 	return 1;
    128 }
    129 
    130 int extban_inchannel_is_banned(BanContext *b)
    131 {
    132 	Membership *lp;
    133 	const char *p = b->banstr;
    134 	char symbol = '\0';
    135 
    136 	if (!b->client->user)
    137 		return 0;
    138 
    139 	if (*p != '#')
    140 	{
    141 		symbol = *p;
    142 		p++;
    143 	}
    144 
    145 	for (lp = b->client->user->channel; lp; lp = lp->next)
    146 	{
    147 		if (match_esc(p, lp->channel->name))
    148 		{
    149 			/* Channel matched, check symbol if needed (+/%/@/etc) */
    150 			if (symbol)
    151 			{
    152 				if (inchannel_compareflags(symbol, lp->member_modes))
    153 					return 1;
    154 			} else
    155 				return 1;
    156 		}
    157 	}
    158 
    159 	return 0;
    160 }
    161