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
|
/*
* InspIRCd -- Internet Relay Chat Daemon
*
* Copyright (C) 2017 B00mX0r <b00mx0r@aureus.pw>
* Copyright (C) 2013, 2018-2024 Sadie Powell <sadie@witchery.services>
* Copyright (C) 2012-2014 Attila Molnar <attilamolnar@hush.com>
* Copyright (C) 2012 Robby <robby@chatbelgie.be>
* Copyright (C) 2012 Justin Crawford <Justasic@Gmail.com>
* Copyright (C) 2009 Uli Schlachter <psychon@znc.in>
* Copyright (C) 2009 Daniel De Graaf <danieldg@inspircd.org>
* Copyright (C) 2008 Thomas Stagner <aquanight@gmail.com>
* Copyright (C) 2007 Dennis Friis <peavey@inspircd.org>
* Copyright (C) 2006 Oliver Lupton <om@inspircd.org>
* Copyright (C) 2005-2006, 2010 Craig Edwards <brain@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 "modules/isupport.h"
#include "numerichelper.h"
class CommandRemove final
: public Command
{
private:
ChanModeReference nokicksmode;
UserModeReference servprotectmode;
public:
ModeHandler::Rank protectedrank;
bool supportnokicks;
CommandRemove(Module* Creator)
: Command(Creator, "REMOVE", 2, 3)
, nokicksmode(Creator, "nokick")
, servprotectmode(Creator, "servprotect")
{
syntax = { "<channel> <nick> [:<reason>]" };
translation = { TR_TEXT, TR_NICK, TR_TEXT };
}
CmdResult Handle(User* user, const CommandBase::Params& parameters) override
{
// Keep compatibility with v3 servers by allowing them to send removes with the old order.
bool neworder = !IS_LOCAL(user) && ServerInstance->Channels.IsPrefix(parameters[0][0]);
const std::string& channame = parameters[neworder ? 0 : 1];
const std::string& username = parameters[neworder ? 1 : 0];
/* Look up the user we're meant to be removing from the channel */
User* target;
if (IS_LOCAL(user))
target = ServerInstance->Users.FindNick(username, true);
else
target = ServerInstance->Users.Find(username, true);
/* And the channel we're meant to be removing them from */
auto* channel = ServerInstance->Channels.Find(channame);
/* Fix by brain - someone needs to learn to validate their input! */
if (!channel)
{
user->WriteNumeric(Numerics::NoSuchChannel(channame));
return CmdResult::FAILURE;
}
if (!target)
{
user->WriteNumeric(Numerics::NoSuchNick(username));
return CmdResult::FAILURE;
}
if (!channel->HasUser(target))
{
user->WriteNotice("*** User {} is not on channel {}", target->nick, channel->name);
return CmdResult::FAILURE;
}
if (target->IsModeSet(servprotectmode))
{
user->WriteNumeric(ERR_RESTRICTED, channame, "Only a service may remove a service from a channel.");
return CmdResult::FAILURE;
}
/* We support the +Q channel mode via. the m_nokicks module, if the module is loaded and the mode is set then disallow the /remove */
if ((!IS_LOCAL(user)) || (!supportnokicks) || (!channel->IsModeSet(nokicksmode)))
{
/* We'll let everyone remove their level and below, eg:
* ops can remove ops, halfops, voices, and those with no mode (no moders actually are set to 1)
* a services target will get a higher level than it's possible for a /remover to get..so they're safe.
* Nobody may remove people with >= protectedrank rank.
*/
ModeHandler::Rank ulevel = channel->GetPrefixValue(user);
ModeHandler::Rank tlevel = channel->GetPrefixValue(target);
if ((!IS_LOCAL(user)) || ((ulevel > VOICE_VALUE) && (ulevel >= tlevel) && ((protectedrank == 0) || (tlevel < protectedrank))))
{
// REMOVE will be sent to the target's server and it will reply with a PART (or do nothing if it doesn't understand the command)
if (!IS_LOCAL(target))
{
CommandBase::Params p;
p.push_back(channel->name);
p.push_back(target->uuid);
if (parameters.size() > 2)
p.push_back(":" + parameters[2]);
ServerInstance->PI->SendEncapsulatedData(target->server->GetName(), "REMOVE", p, user);
return CmdResult::SUCCESS;
}
std::string reasonparam;
/* If a reason is given, use it */
if(parameters.size() > 2)
reasonparam = parameters[2];
else
reasonparam = "No reason given";
/* Build up the part reason string. */
std::string reason = "Removed by " + user->nick + ": " + reasonparam;
channel->WriteRemoteNotice(INSP_FORMAT("{} removed {} from the channel", user->nick, target->nick));
target->WriteNotice("*** " + user->nick + " removed you from " + channel->name + " with the message: " + reasonparam);
channel->PartUser(target, reason);
}
else
{
user->WriteNotice("*** You do not have access to /REMOVE {} from {}", target->nick, channel->name);
return CmdResult::FAILURE;
}
}
else
{
/* m_nokicks.so was loaded and +Q was set, block! */
user->WriteNumeric(ERR_RESTRICTED, channel->name, INSP_FORMAT("Can't remove user {} from channel (+{} is set)",
target->nick, servprotectmode->GetModeChar()));
return CmdResult::FAILURE;
}
return CmdResult::SUCCESS;
}
};
class ModuleRemove final
: public Module
, public ISupport::EventListener
{
private:
CommandRemove cmd;
public:
ModuleRemove()
: Module(VF_VENDOR | VF_OPTCOMMON, "Adds the /REMOVE command which allows channel operators to force part users from a channel.")
, ISupport::EventListener(this)
, cmd(this)
{
}
void OnBuildISupport(ISupport::TokenMap& tokens) override
{
tokens["REMOVE"];
}
void ReadConfig(ConfigStatus& status) override
{
const auto& tag = ServerInstance->Config->ConfValue("remove");
cmd.supportnokicks = tag->getBool("supportnokicks");
cmd.protectedrank = tag->getNum<ModeHandler::Rank>("protectedrank", 50000, 1);
}
};
MODULE_INIT(ModuleRemove)
|
