1 /*
2 * InspIRCd -- Internet Relay Chat Daemon
3 *
4 * Copyright (C) 2013, 2017-2020 Sadie Powell <sadie@witchery.services>
5 * Copyright (C) 2012-2015 Attila Molnar <attilamolnar@hush.com>
6 * Copyright (C) 2012, 2019 Robby <robby@chatbelgie.be>
7 * Copyright (C) 2009-2010 Daniel De Graaf <danieldg@inspircd.org>
8 *
9 * This file is part of InspIRCd. InspIRCd is free software: you can
10 * redistribute it and/or modify it under the terms of the GNU General Public
11 * License as published by the Free Software Foundation, version 2.
12 *
13 * This program is distributed in the hope that it will be useful, but WITHOUT
14 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
15 * FOR A PARTICULAR PURPOSE. See the GNU General Public License for more
16 * details.
17 *
18 * You should have received a copy of the GNU General Public License
19 * along with this program. If not, see <http://www.gnu.org/licenses/>.
20 */
21
22
23 #include "inspircd.h"
24 #include "modules/ctctags.h"
25
26 class DelayMsgMode : public ParamMode<DelayMsgMode, LocalIntExt>
27 {
28 public:
29 LocalIntExt jointime;
DelayMsgMode(Module * Parent)30 DelayMsgMode(Module* Parent)
31 : ParamMode<DelayMsgMode, LocalIntExt>(Parent, "delaymsg", 'd')
32 , jointime("delaymsg", ExtensionItem::EXT_MEMBERSHIP, Parent)
33 {
34 ranktoset = ranktounset = OP_VALUE;
35 syntax = "<seconds>";
36 }
37
ResolveModeConflict(std::string & their_param,const std::string & our_param,Channel *)38 bool ResolveModeConflict(std::string& their_param, const std::string& our_param, Channel*) CXX11_OVERRIDE
39 {
40 return ConvToNum<intptr_t>(their_param) < ConvToNum<intptr_t>(our_param);
41 }
42
43 ModeAction OnSet(User* source, Channel* chan, std::string& parameter) CXX11_OVERRIDE;
44 void OnUnset(User* source, Channel* chan) CXX11_OVERRIDE;
45
SerializeParam(Channel * chan,intptr_t n,std::string & out)46 void SerializeParam(Channel* chan, intptr_t n, std::string& out)
47 {
48 out += ConvToStr(n);
49 }
50 };
51
52 class ModuleDelayMsg
53 : public Module
54 , public CTCTags::EventListener
55 {
56 private:
57 DelayMsgMode djm;
58 bool allownotice;
59 ModResult HandleMessage(User* user, const MessageTarget& target, bool notice);
60
61 public:
ModuleDelayMsg()62 ModuleDelayMsg()
63 : CTCTags::EventListener(this)
64 , djm(this)
65 {
66 }
67
68 Version GetVersion() CXX11_OVERRIDE;
69 void OnUserJoin(Membership* memb, bool sync, bool created, CUList&) CXX11_OVERRIDE;
70 ModResult OnUserPreMessage(User* user, const MessageTarget& target, MessageDetails& details) CXX11_OVERRIDE;
71 ModResult OnUserPreTagMessage(User* user, const MessageTarget& target, CTCTags::TagMessageDetails& details) CXX11_OVERRIDE;
72 void ReadConfig(ConfigStatus& status) CXX11_OVERRIDE;
73 };
74
OnSet(User * source,Channel * chan,std::string & parameter)75 ModeAction DelayMsgMode::OnSet(User* source, Channel* chan, std::string& parameter)
76 {
77 // Setting a new limit, sanity check
78 intptr_t limit = ConvToNum<intptr_t>(parameter);
79 if (limit <= 0)
80 limit = 1;
81
82 ext.set(chan, limit);
83 return MODEACTION_ALLOW;
84 }
85
OnUnset(User * source,Channel * chan)86 void DelayMsgMode::OnUnset(User* source, Channel* chan)
87 {
88 /*
89 * Clean up metadata
90 */
91 const Channel::MemberMap& users = chan->GetUsers();
92 for (Channel::MemberMap::const_iterator n = users.begin(); n != users.end(); ++n)
93 jointime.set(n->second, 0);
94 }
95
GetVersion()96 Version ModuleDelayMsg::GetVersion()
97 {
98 return Version("Adds channel mode d (delaymsg) which prevents newly joined users from speaking until the specified number of seconds have passed.", VF_VENDOR);
99 }
100
OnUserJoin(Membership * memb,bool sync,bool created,CUList &)101 void ModuleDelayMsg::OnUserJoin(Membership* memb, bool sync, bool created, CUList&)
102 {
103 if ((IS_LOCAL(memb->user)) && (memb->chan->IsModeSet(djm)))
104 {
105 djm.jointime.set(memb, ServerInstance->Time());
106 }
107 }
108
OnUserPreMessage(User * user,const MessageTarget & target,MessageDetails & details)109 ModResult ModuleDelayMsg::OnUserPreMessage(User* user, const MessageTarget& target, MessageDetails& details)
110 {
111 return HandleMessage(user, target, details.type == MSG_NOTICE);
112 }
113
OnUserPreTagMessage(User * user,const MessageTarget & target,CTCTags::TagMessageDetails & details)114 ModResult ModuleDelayMsg::OnUserPreTagMessage(User* user, const MessageTarget& target, CTCTags::TagMessageDetails& details)
115 {
116 return HandleMessage(user, target, false);
117 }
118
HandleMessage(User * user,const MessageTarget & target,bool notice)119 ModResult ModuleDelayMsg::HandleMessage(User* user, const MessageTarget& target, bool notice)
120 {
121 if (!IS_LOCAL(user))
122 return MOD_RES_PASSTHRU;
123
124 if ((target.type != MessageTarget::TYPE_CHANNEL) || ((!allownotice) && (notice)))
125 return MOD_RES_PASSTHRU;
126
127 Channel* channel = target.Get<Channel>();
128 Membership* memb = channel->GetUser(user);
129
130 if (!memb)
131 return MOD_RES_PASSTHRU;
132
133 time_t ts = djm.jointime.get(memb);
134
135 if (ts == 0)
136 return MOD_RES_PASSTHRU;
137
138 int len = djm.ext.get(channel);
139
140 if ((ts + len) > ServerInstance->Time())
141 {
142 if (channel->GetPrefixValue(user) < VOICE_VALUE)
143 {
144 const std::string message = InspIRCd::Format("You cannot send messages to this channel until you have been a member for %d seconds.", len);
145 user->WriteNumeric(Numerics::CannotSendTo(channel, message));
146 return MOD_RES_DENY;
147 }
148 }
149 else
150 {
151 /* Timer has expired, we can stop checking now */
152 djm.jointime.set(memb, 0);
153 }
154 return MOD_RES_PASSTHRU;
155 }
156
ReadConfig(ConfigStatus & status)157 void ModuleDelayMsg::ReadConfig(ConfigStatus& status)
158 {
159 ConfigTag* tag = ServerInstance->Config->ConfValue("delaymsg");
160 allownotice = tag->getBool("allownotice", true);
161 }
162
163 MODULE_INIT(ModuleDelayMsg)
164