1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
|
/*
* InspIRCd -- Internet Relay Chat Daemon
*
* Copyright (C) 2009-2010 Daniel De Graaf <danieldg@inspircd.org>
*
* This file is part of InspIRCd. InspIRCd 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, version 2.
*
* 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, see <http://www.gnu.org/licenses/>.
*/
#include "inspircd.h"
static std::bitset<256> allowedmap;
class NewIsChannelHandler : public HandlerBase1<bool, const std::string&>
{
public:
bool Call(const std::string&);
};
bool NewIsChannelHandler::Call(const std::string& channame)
{
if (channame.empty() || channame.length() > ServerInstance->Config->Limits.ChanMax || channame[0] != '#')
return false;
for (std::string::const_iterator c = channame.begin(); c != channame.end(); ++c)
{
unsigned int i = *c & 0xFF;
if (!allowedmap[i])
return false;
}
return true;
}
class ModuleChannelNames : public Module
{
NewIsChannelHandler myhandler;
caller1<bool, const std::string&> rememberer;
bool badchan;
ChanModeReference permchannelmode;
public:
ModuleChannelNames()
: rememberer(ServerInstance->IsChannel)
, badchan(false)
, permchannelmode(this, "permanent")
{
}
void init() CXX11_OVERRIDE
{
ServerInstance->IsChannel = &myhandler;
}
void ValidateChans()
{
badchan = true;
const chan_hash& chans = ServerInstance->GetChans();
for (chan_hash::const_iterator i = chans.begin(); i != chans.end(); )
{
Channel* c = i->second;
// Move iterator before we begin kicking
++i;
if (ServerInstance->IsChannel(c->name))
continue; // The name of this channel is still valid
if (c->IsModeSet(permchannelmode) && c->GetUserCounter())
{
std::vector<std::string> modes;
modes.push_back(c->name);
modes.push_back(std::string("-") + permchannelmode->GetModeChar());
ServerInstance->Modes->Process(modes, ServerInstance->FakeClient);
}
const UserMembList* users = c->GetUsers();
for(UserMembCIter j = users->begin(); j != users->end(); )
{
if (IS_LOCAL(j->first))
{
// KickUser invalidates the iterator
UserMembCIter it = j++;
c->KickUser(ServerInstance->FakeClient, it->first, "Channel name no longer valid");
}
else
++j;
}
}
badchan = false;
}
void ReadConfig(ConfigStatus& status) CXX11_OVERRIDE
{
ConfigTag* tag = ServerInstance->Config->ConfValue("channames");
std::string denyToken = tag->getString("denyrange");
std::string allowToken = tag->getString("allowrange");
if (!denyToken.compare(0, 2, "0-"))
denyToken[0] = '1';
if (!allowToken.compare(0, 2, "0-"))
allowToken[0] = '1';
allowedmap.set();
irc::portparser denyrange(denyToken, false);
int denyno = -1;
while (0 != (denyno = denyrange.GetToken()))
allowedmap[denyno & 0xFF] = false;
irc::portparser allowrange(allowToken, false);
int allowno = -1;
while (0 != (allowno = allowrange.GetToken()))
allowedmap[allowno & 0xFF] = true;
allowedmap[0x07] = false; // BEL
allowedmap[0x20] = false; // ' '
allowedmap[0x2C] = false; // ','
ValidateChans();
}
void OnUserKick(User* source, Membership* memb, const std::string &reason, CUList& except_list) CXX11_OVERRIDE
{
if (badchan)
{
const UserMembList* users = memb->chan->GetUsers();
for(UserMembCIter i = users->begin(); i != users->end(); i++)
if (i->first != memb->user)
except_list.insert(i->first);
}
}
CullResult cull() CXX11_OVERRIDE
{
ServerInstance->IsChannel = rememberer;
ValidateChans();
return Module::cull();
}
Version GetVersion() CXX11_OVERRIDE
{
return Version("Implements config tags which allow changing characters allowed in channel names", VF_VENDOR);
}
};
MODULE_INIT(ModuleChannelNames)
|
