2 * InspIRCd -- Internet Relay Chat Daemon
4 * Copyright (C) 2009 Daniel De Graaf <danieldg@inspircd.org>
5 * Copyright (C) 2008 Pippijn van Steenhoven <pip88nl@gmail.com>
6 * Copyright (C) 2007 Dennis Friis <peavey@inspircd.org>
7 * Copyright (C) 2007 Robin Burchell <robin+git@viroteck.net>
8 * Copyright (C) 2006-2007 Oliver Lupton <oliverlupton@gmail.com>
10 * This file is part of InspIRCd. InspIRCd is free software: you can
11 * redistribute it and/or modify it under the terms of the GNU General Public
12 * License as published by the Free Software Foundation, version 2.
14 * This program is distributed in the hope that it will be useful, but WITHOUT
15 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
16 * FOR A PARTICULAR PURPOSE. See the GNU General Public License for more
19 * You should have received a copy of the GNU General Public License
20 * along with this program. If not, see <http://www.gnu.org/licenses/>.
26 enum BlockAction { IBLOCK_KILL, IBLOCK_KILLOPERS, IBLOCK_NOTICE, IBLOCK_NOTICEOPERS, IBLOCK_SILENT };
27 /* IBLOCK_NOTICE - Send a notice to the user informing them of what happened.
28 * IBLOCK_NOTICEOPERS - Send a notice to the user informing them and send an oper notice.
29 * IBLOCK_SILENT - Generate no output, silently drop messages.
30 * IBLOCK_KILL - Kill the user with the reason "Global message (/amsg or /ame) detected".
31 * IBLOCK_KILLOPERS - As above, but send an oper notice as well. This is the default.
34 /** Holds a blocked message's details
43 BlockedMessage(const std::string &msg, const irc::string &tgt, time_t when)
44 : message(msg), target(tgt), sent(when)
49 class ModuleBlockAmsg : public Module
53 SimpleExtItem<BlockedMessage> blockamsg;
56 ModuleBlockAmsg() : blockamsg("blockamsg", this)
60 Version GetVersion() CXX11_OVERRIDE
62 return Version("Attempt to block /amsg, at least some of the irritating mIRC scripts.",VF_VENDOR);
65 void ReadConfig(ConfigStatus& status) CXX11_OVERRIDE
67 ConfigTag* tag = ServerInstance->Config->ConfValue("blockamsg");
68 ForgetDelay = tag->getInt("delay", -1);
69 std::string act = tag->getString("action");
72 action = IBLOCK_NOTICE;
73 else if(act == "noticeopers")
74 action = IBLOCK_NOTICEOPERS;
75 else if(act == "silent")
76 action = IBLOCK_SILENT;
77 else if(act == "kill")
80 action = IBLOCK_KILLOPERS;
83 ModResult OnPreCommand(std::string &command, std::vector<std::string> ¶meters, LocalUser *user, bool validated, const std::string &original_line) CXX11_OVERRIDE
85 // Don't do anything with unregistered users
86 if (user->registered != REG_ALL)
87 return MOD_RES_PASSTHRU;
89 if ((validated) && (parameters.size() >= 2) && ((command == "PRIVMSG") || (command == "NOTICE")))
91 // parameters[0] should have the target(s) in it.
92 // I think it will be faster to first check if there are any commas, and if there are then try and parse it out.
93 // Most messages have a single target so...
98 if(*parameters[0].c_str() != '#')
100 // Decrement if the first target wasn't a channel.
104 for(const char* c = parameters[0].c_str(); *c; c++)
105 if((*c == ',') && *(c+1) && (*(c+1) == '#'))
108 /* targets should now contain the number of channel targets the msg/notice was pointed at.
109 * If the msg/notice was a PM there should be no channel targets and 'targets' should = 0.
110 * We don't want to block PMs so...
114 return MOD_RES_PASSTHRU;
117 userchans = user->chans.size();
119 // Check that this message wasn't already sent within a few seconds.
120 BlockedMessage* m = blockamsg.get(user);
122 // If the message is identical and within the time.
123 // We check the target is *not* identical, that'd straying into the realms of flood control. Which isn't what we're doing...
125 // The number of target channels is equal to the number of channels the sender is on..a little suspicious.
126 // Check it's more than 1 too, or else users on one channel would have fun.
127 if((m && (m->message == parameters[1]) && (m->target != parameters[0]) && (ForgetDelay != -1) && (m->sent >= ServerInstance->Time()-ForgetDelay)) || ((targets > 1) && (targets == userchans)))
130 if(action == IBLOCK_KILLOPERS || action == IBLOCK_NOTICEOPERS)
131 ServerInstance->SNO->WriteToSnoMask('a', "%s had an /amsg or /ame denied", user->nick.c_str());
133 if(action == IBLOCK_KILL || action == IBLOCK_KILLOPERS)
134 ServerInstance->Users->QuitUser(user, "Attempted to global message (/amsg or /ame)");
135 else if(action == IBLOCK_NOTICE || action == IBLOCK_NOTICEOPERS)
136 user->WriteServ( "NOTICE %s :Global message (/amsg or /ame) denied", user->nick.c_str());
143 // If there's already a BlockedMessage allocated, use it.
144 m->message = parameters[1];
145 m->target = parameters[0].c_str();
146 m->sent = ServerInstance->Time();
150 m = new BlockedMessage(parameters[1], parameters[0].c_str(), ServerInstance->Time());
151 blockamsg.set(user, m);
154 return MOD_RES_PASSTHRU;
158 MODULE_INIT(ModuleBlockAmsg)