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
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
|
/*
* InspIRCd -- Internet Relay Chat Daemon
*
* Copyright (C) 2018 linuxdaemon <linuxdaemon.irc@gmail.com>
* Copyright (C) 2017 B00mX0r <b00mx0r@aureus.pw>
* Copyright (C) 2016, 2019 Matt Schatz <genius3000@g3k.solutions>
* Copyright (C) 2013, 2017-2018, 2020 Sadie Powell <sadie@witchery.services>
* Copyright (C) 2013 Daniel Vassdal <shutter@canternet.org>
* Copyright (C) 2012-2016 Attila Molnar <attilamolnar@hush.com>
* Copyright (C) 2012, 2019 Robby <robby@chatbelgie.be>
* Copyright (C) 2009-2010 Daniel De Graaf <danieldg@inspircd.org>
* Copyright (C) 2009 Uli Schlachter <psychon@inspircd.org>
* Copyright (C) 2009 John Brooks <special@inspircd.org>
* Copyright (C) 2007-2008, 2010 Craig Edwards <brain@inspircd.org>
* Copyright (C) 2007 Robin Burchell <robin+git@viroteck.net>
* Copyright (C) 2007 Dennis Friis <peavey@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"
#include "listmode.h"
// Holds a timed ban
class TimedBan
{
public:
std::string mask;
std::string setter;
time_t expire;
Channel* chan;
};
typedef std::vector<TimedBan> timedbans;
timedbans TimedBanList;
// Handle /TBAN
class CommandTban : public Command
{
ChanModeReference banmode;
bool IsBanSet(Channel* chan, const std::string& mask)
{
ListModeBase* banlm = static_cast<ListModeBase*>(*banmode);
if (!banlm)
return false;
const ListModeBase::ModeList* bans = banlm->GetList(chan);
if (bans)
{
for (ListModeBase::ModeList::const_iterator i = bans->begin(); i != bans->end(); ++i)
{
const ListModeBase::ListItem& ban = *i;
if (irc::equals(ban.mask, mask))
return true;
}
}
return false;
}
public:
CommandTban(Module* Creator)
: Command(Creator,"TBAN", 3)
, banmode(Creator, "ban")
{
syntax = "<channel> <duration> <banmask>";
}
CmdResult Handle(User* user, const Params& parameters) CXX11_OVERRIDE
{
Channel* channel = ServerInstance->FindChan(parameters[0]);
if (!channel)
{
user->WriteNumeric(Numerics::NoSuchChannel(parameters[0]));
return CMD_FAILURE;
}
unsigned int cm = channel->GetPrefixValue(user);
if (cm < HALFOP_VALUE)
{
user->WriteNumeric(ERR_CHANOPRIVSNEEDED, channel->name, "You do not have permission to set bans on this channel");
return CMD_FAILURE;
}
TimedBan T;
unsigned long duration;
if (!InspIRCd::Duration(parameters[1], duration))
{
user->WriteNotice("Invalid ban time");
return CMD_FAILURE;
}
unsigned long expire = duration + ServerInstance->Time();
std::string mask = parameters[2];
bool isextban = ((mask.size() > 2) && (mask[1] == ':'));
if (!isextban && !InspIRCd::IsValidMask(mask))
mask.append("!*@*");
if (IsBanSet(channel, mask))
{
user->WriteNotice("Ban already set");
return CMD_FAILURE;
}
Modes::ChangeList setban;
setban.push_add(ServerInstance->Modes->FindMode('b', MODETYPE_CHANNEL), mask);
// Pass the user (instead of ServerInstance->FakeClient) to ModeHandler::Process() to
// make it so that the user sets the mode themselves
ServerInstance->Modes->Process(user, channel, NULL, setban);
if (ServerInstance->Modes->GetLastChangeList().empty())
{
user->WriteNotice("Invalid ban mask");
return CMD_FAILURE;
}
T.mask = mask;
T.setter = user->nick;
T.expire = expire + (IS_REMOTE(user) ? 5 : 0);
T.chan = channel;
TimedBanList.push_back(T);
const std::string message = InspIRCd::Format("Timed ban %s added by %s on %s lasting for %s.",
mask.c_str(), user->nick.c_str(), channel->name.c_str(), InspIRCd::DurationString(duration).c_str());
// If halfop is loaded, send notice to halfops and above, otherwise send to ops and above
PrefixMode* mh = ServerInstance->Modes->FindPrefixMode('h');
char pfxchar = (mh && mh->name == "halfop") ? mh->GetPrefix() : '@';
channel->WriteRemoteNotice(message, pfxchar);
return CMD_SUCCESS;
}
RouteDescriptor GetRouting(User* user, const Params& parameters) CXX11_OVERRIDE
{
return ROUTE_BROADCAST;
}
};
class BanWatcher : public ModeWatcher
{
public:
BanWatcher(Module* parent)
: ModeWatcher(parent, "ban", MODETYPE_CHANNEL)
{
}
void AfterMode(User* source, User* dest, Channel* chan, const std::string& banmask, bool adding) CXX11_OVERRIDE
{
if (adding)
return;
for (timedbans::iterator i = TimedBanList.begin(); i != TimedBanList.end(); ++i)
{
if (i->chan != chan)
continue;
const std::string& target = i->mask;
if (irc::equals(banmask, target))
{
TimedBanList.erase(i);
break;
}
}
}
};
class ChannelMatcher
{
Channel* const chan;
public:
ChannelMatcher(Channel* ch)
: chan(ch)
{
}
bool operator()(const TimedBan& tb) const
{
return (tb.chan == chan);
}
};
class ModuleTimedBans : public Module
{
CommandTban cmd;
BanWatcher banwatcher;
public:
ModuleTimedBans()
: cmd(this)
, banwatcher(this)
{
}
void OnBackgroundTimer(time_t curtime) CXX11_OVERRIDE
{
timedbans expired;
for (timedbans::iterator i = TimedBanList.begin(); i != TimedBanList.end();)
{
if (curtime > i->expire)
{
expired.push_back(*i);
i = TimedBanList.erase(i);
}
else
++i;
}
for (timedbans::iterator i = expired.begin(); i != expired.end(); i++)
{
const std::string mask = i->mask;
Channel* cr = i->chan;
const std::string message = InspIRCd::Format("Timed ban %s set by %s on %s has expired.",
mask.c_str(), i->setter.c_str(), cr->name.c_str());
// If halfop is loaded, send notice to halfops and above, otherwise send to ops and above
PrefixMode* mh = ServerInstance->Modes->FindPrefixMode('h');
char pfxchar = (mh && mh->name == "halfop") ? mh->GetPrefix() : '@';
cr->WriteRemoteNotice(message, pfxchar);
Modes::ChangeList setban;
setban.push_remove(ServerInstance->Modes->FindMode('b', MODETYPE_CHANNEL), mask);
ServerInstance->Modes->Process(ServerInstance->FakeClient, cr, NULL, setban);
}
}
void OnChannelDelete(Channel* chan) CXX11_OVERRIDE
{
// Remove all timed bans affecting the channel from internal bookkeeping
TimedBanList.erase(std::remove_if(TimedBanList.begin(), TimedBanList.end(), ChannelMatcher(chan)), TimedBanList.end());
}
Version GetVersion() CXX11_OVERRIDE
{
return Version("Provides the TBAN command, timed channel bans", VF_COMMON | VF_VENDOR);
}
};
MODULE_INIT(ModuleTimedBans)
|
