X-Git-Url: https://git.netwichtig.de/gitweb/?a=blobdiff_plain;f=src%2Fmodules%2Fm_timedbans.cpp;h=6cc5d01e66fd8fd1a23a2c538ea19397b2c9e949;hb=d848034590bc402277da975b7efdbc78ce1722fc;hp=f705a1f95013ceb36a6510f2a5676e71d364537d;hpb=bab14f0dd2345c9d7dcbc47c918563709e1ac094;p=user%2Fhenk%2Fcode%2Finspircd.git diff --git a/src/modules/m_timedbans.cpp b/src/modules/m_timedbans.cpp index f705a1f95..6cc5d01e6 100644 --- a/src/modules/m_timedbans.cpp +++ b/src/modules/m_timedbans.cpp @@ -1 +1,267 @@ -/* +------------------------------------+ * | Inspire Internet Relay Chat Daemon | * +------------------------------------+ * * InspIRCd: (C) 2002-2007 InspIRCd Development Team * See: http://www.inspircd.org/wiki/index.php/Credits * * This program is free but copyrighted software; see * the file COPYING for details. * * --------------------------------------------------- */ /* $ModDesc: Adds timed bans */ #include "inspircd.h" #include "users.h" #include "channels.h" #include "modules.h" #include "hashcomp.h" #include "configreader.h" /** Holds a timed ban */ class TimedBan : public classbase { public: std::string channel; std::string mask; time_t expire; }; typedef std::vector timedbans; timedbans TimedBanList; /** Handle /TBAN */ class cmd_tban : public command_t { public: cmd_tban (InspIRCd* Instance) : command_t(Instance,"TBAN", 0, 3) { this->source = "m_timedbans.so"; syntax = " "; } CmdResult Handle (const char** parameters, int pcnt, userrec *user) { chanrec* channel = ServerInstance->FindChan(parameters[0]); if (channel) { int cm = channel->GetStatus(user); if ((cm == STATUS_HOP) || (cm == STATUS_OP)) { if (!ServerInstance->IsValidMask(parameters[2])) { user->WriteServ("NOTICE "+std::string(user->nick)+" :Invalid ban mask"); return CMD_FAILURE; } for (BanList::iterator i = channel->bans.begin(); i != channel->bans.end(); i++) { if (!strcasecmp(i->data,parameters[2])) { user->WriteServ("NOTICE "+std::string(user->nick)+" :The ban "+std::string(parameters[2])+" is already on the banlist of "+std::string(parameters[0])); return CMD_FAILURE; } } TimedBan T; std::string channelname = parameters[0]; long duration = ServerInstance->Duration(parameters[1]); unsigned long expire = duration + time(NULL); if (duration < 1) { user->WriteServ("NOTICE "+std::string(user->nick)+" :Invalid ban time"); return CMD_FAILURE; } std::string mask = parameters[2]; const char *setban[32]; setban[0] = parameters[0]; setban[1] = "+b"; setban[2] = parameters[2]; // use CallCommandHandler to make it so that the user sets the mode // themselves ServerInstance->CallCommandHandler("MODE",setban,3,user); /* Check if the ban was actually added (e.g. banlist was NOT full) */ bool was_added = false; for (BanList::iterator i = channel->bans.begin(); i != channel->bans.end(); i++) if (!strcasecmp(i->data,mask.c_str())) was_added = true; if (was_added) { T.channel = channelname; T.mask = mask; T.expire = expire; TimedBanList.push_back(T); channel->WriteChannelWithServ(ServerInstance->Config->ServerName, "NOTICE %s :%s added a timed ban on %s lasting for %ld seconds.", channel->name, user->nick, mask.c_str(), duration); return CMD_SUCCESS; } return CMD_FAILURE; } else user->WriteServ("482 %s %s :You must be at least a half-operator to change modes on this channel",user->nick, channel->name); return CMD_FAILURE; } user->WriteServ("401 %s %s :No such channel",user->nick, parameters[0]); return CMD_FAILURE; } }; class ModuleTimedBans : public Module { cmd_tban* mycommand; public: ModuleTimedBans(InspIRCd* Me) : Module(Me) { mycommand = new cmd_tban(ServerInstance); ServerInstance->AddCommand(mycommand); TimedBanList.clear(); } virtual ~ModuleTimedBans() { TimedBanList.clear(); } void Implements(char* List) { List[I_OnDelBan] = List[I_OnBackgroundTimer] = 1; } virtual int OnDelBan(userrec* source, chanrec* chan, const std::string &banmask) { irc::string listitem = banmask.c_str(); irc::string thischan = chan->name; for (timedbans::iterator i = TimedBanList.begin(); i < TimedBanList.end(); i++) { irc::string target = i->mask.c_str(); irc::string tchan = i->channel.c_str(); if ((listitem == target) && (tchan == thischan)) { TimedBanList.erase(i); break; } } return 0; } virtual void OnBackgroundTimer(time_t curtime) { bool again = true; while (again) { again = false; for (timedbans::iterator i = TimedBanList.begin(); i < TimedBanList.end(); i++) { if (curtime > i->expire) { chanrec* cr = ServerInstance->FindChan(i->channel); again = true; if (cr) { cr->WriteChannelWithServ(ServerInstance->Config->ServerName, "NOTICE %s :Timed ban on %s expired.", cr->name, i->mask.c_str()); const char *setban[3]; setban[0] = i->channel.c_str(); setban[1] = "-b"; setban[2] = i->mask.c_str(); // kludge alert! // ::SendMode expects a userrec* to send the numeric replies // back to, so we create it a fake user that isnt in the user // hash and set its descriptor to FD_MAGIC_NUMBER so the data // falls into the abyss :p userrec* temp = new userrec(ServerInstance); temp->SetFd(FD_MAGIC_NUMBER); /* FIX: Send mode remotely*/ std::deque n; n.push_back(setban[0]); n.push_back("-b"); n.push_back(setban[2]); ServerInstance->SendMode(setban,3,temp); Event rmode((char *)&n, NULL, "send_mode"); rmode.Send(ServerInstance); DELETE(temp); } else { /* Where the hell did our channel go?! */ TimedBanList.erase(i); } // we used to delete the item here, but we dont need to as the servermode above does it for us, break; } } } } virtual Version GetVersion() { return Version(1,1,0,0,VF_VENDOR,API_VERSION); } }; MODULE_INIT(ModuleTimedBans) \ No newline at end of file +/* + * InspIRCd -- Internet Relay Chat Daemon + * + * Copyright (C) 2020 iwalkalone + * Copyright (C) 2019 Matt Schatz + * Copyright (C) 2018 linuxdaemon + * Copyright (C) 2017 B00mX0r + * Copyright (C) 2013, 2017-2018, 2020 Sadie Powell + * Copyright (C) 2013 Daniel Vassdal + * Copyright (C) 2012-2016 Attila Molnar + * Copyright (C) 2012, 2019 Robby + * Copyright (C) 2009-2010 Daniel De Graaf + * Copyright (C) 2009 Uli Schlachter + * Copyright (C) 2009 John Brooks + * Copyright (C) 2007-2008 Robin Burchell + * Copyright (C) 2007 Dennis Friis + * Copyright (C) 2005-2008, 2010 Craig Edwards + * + * 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 . + */ + + +#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 timedbans; +timedbans TimedBanList; + +// Handle /TBAN +class CommandTban : public Command +{ + ChanModeReference banmode; + + bool IsBanSet(Channel* chan, const std::string& mask) + { + ListModeBase* banlm = static_cast(*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: + bool sendnotice; + + CommandTban(Module* Creator) + : Command(Creator,"TBAN", 3) + , banmode(Creator, "ban") + { + syntax = " "; + } + + 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); + + if (sendnotice) + { + 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 ReadConfig(ConfigStatus& status) CXX11_OVERRIDE + { + ConfigTag* tag = ServerInstance->Config->ConfValue("timedbans"); + cmd.sendnotice = tag->getBool("sendnotice", true); + } + + 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; + + if (cmd.sendnotice) + { + 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("Adds the /TBAN command which allows channel operators to add bans which will be expired after the specified period.", VF_COMMON | VF_VENDOR); + } +}; + +MODULE_INIT(ModuleTimedBans)