]> git.netwichtig.de Git - user/henk/code/inspircd.git/blob - src/modules/m_securelist.cpp
Update copyright headers.
[user/henk/code/inspircd.git] / src / modules / m_securelist.cpp
1 /*
2  * InspIRCd -- Internet Relay Chat Daemon
3  *
4  *   Copyright (C) 2018 linuxdaemon <linuxdaemon.irc@gmail.com>
5  *   Copyright (C) 2013, 2018, 2020 Sadie Powell <sadie@witchery.services>
6  *   Copyright (C) 2012-2013, 2016 Attila Molnar <attilamolnar@hush.com>
7  *   Copyright (C) 2012, 2019 Robby <robby@chatbelgie.be>
8  *   Copyright (C) 2009 Daniel De Graaf <danieldg@inspircd.org>
9  *   Copyright (C) 2007-2008 Robin Burchell <robin+git@viroteck.net>
10  *   Copyright (C) 2007 Dennis Friis <peavey@inspircd.org>
11  *   Copyright (C) 2006-2008, 2010 Craig Edwards <brain@inspircd.org>
12  *
13  * This file is part of InspIRCd.  InspIRCd is free software: you can
14  * redistribute it and/or modify it under the terms of the GNU General Public
15  * License as published by the Free Software Foundation, version 2.
16  *
17  * This program is distributed in the hope that it will be useful, but WITHOUT
18  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
19  * FOR A PARTICULAR PURPOSE.  See the GNU General Public License for more
20  * details.
21  *
22  * You should have received a copy of the GNU General Public License
23  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
24  */
25
26
27 #include "inspircd.h"
28 #include "modules/account.h"
29
30 typedef std::vector<std::string> AllowList;
31
32 class ModuleSecureList : public Module
33 {
34  private:
35         AllowList allowlist;
36         bool exemptregistered;
37         bool showmsg;
38         unsigned int WaitTime;
39
40  public:
41         Version GetVersion() CXX11_OVERRIDE
42         {
43                 return Version("Prevents users from using the /LIST command until a predefined period has passed.", VF_VENDOR);
44         }
45
46         void ReadConfig(ConfigStatus& status) CXX11_OVERRIDE
47         {
48                 AllowList newallows;
49
50                 ConfigTagList tags = ServerInstance->Config->ConfTags("securehost");
51                 for (ConfigIter i = tags.first; i != tags.second; ++i)
52                 {
53                         std::string host = i->second->getString("exception");
54                         if (host.empty())
55                                 throw ModuleException("<securehost:exception> is a required field at " + i->second->getTagLocation());
56                         newallows.push_back(host);
57                 }
58
59                 ConfigTag* tag = ServerInstance->Config->ConfValue("securelist");
60                 exemptregistered = tag->getBool("exemptregistered");
61                 showmsg = tag->getBool("showmsg", true);
62                 WaitTime = tag->getDuration("waittime", 60, 1);
63                 allowlist.swap(newallows);
64         }
65
66         ModResult OnPreCommand(std::string& command, CommandBase::Params& parameters, LocalUser* user, bool validated) CXX11_OVERRIDE
67         {
68                 /* If the command doesnt appear to be valid, we dont want to mess with it. */
69                 if (!validated)
70                         return MOD_RES_PASSTHRU;
71
72                 time_t waitallowed = user->signon + WaitTime;
73                 if ((command == "LIST") && (ServerInstance->Time() < waitallowed) && (!user->IsOper()))
74                 {
75                         /* Normally wouldnt be allowed here, are they exempt? */
76                         for (std::vector<std::string>::iterator x = allowlist.begin(); x != allowlist.end(); x++)
77                                 if (InspIRCd::Match(user->MakeHost(), *x, ascii_case_insensitive_map))
78                                         return MOD_RES_PASSTHRU;
79
80                         const AccountExtItem* ext = GetAccountExtItem();
81                         if (exemptregistered && ext && ext->get(user))
82                                 return MOD_RES_PASSTHRU;
83
84                         if (showmsg)
85                         {
86                                 user->WriteNotice(InspIRCd::Format("*** You cannot view the channel list right now. Please %stry again in %s.",
87                                         (exemptregistered ? "login to an account or " : ""),
88                                         InspIRCd::DurationString(waitallowed - ServerInstance->Time()).c_str()));
89                         }
90
91                         // The client might be waiting on a response to do something so send them an
92                         // empty list response to satisfy that.
93                         user->WriteNumeric(RPL_LISTSTART, "Channel", "Users Name");
94                         user->WriteNumeric(RPL_LISTEND, "End of channel list.");
95                         return MOD_RES_DENY;
96                 }
97                 return MOD_RES_PASSTHRU;
98         }
99
100         void On005Numeric(std::map<std::string, std::string>& tokens) CXX11_OVERRIDE
101         {
102                 if (showmsg)
103                         tokens["SECURELIST"] = ConvToStr(WaitTime);
104         }
105 };
106
107 MODULE_INIT(ModuleSecureList)