X-Git-Url: https://git.netwichtig.de/gitweb/?a=blobdiff_plain;f=src%2Fmodules%2Fm_timedbans.cpp;h=6cc5d01e66fd8fd1a23a2c538ea19397b2c9e949;hb=e2b0f3dc9ef4d56c71d7abda13e6139ca092e387;hp=bb1db4f63e8a6a014024854f939c61780484fc5e;hpb=57b6e22c08b6afb9497df986a4bd686df3b3c5b8;p=user%2Fhenk%2Fcode%2Finspircd.git diff --git a/src/modules/m_timedbans.cpp b/src/modules/m_timedbans.cpp index bb1db4f63..6cc5d01e6 100644 --- a/src/modules/m_timedbans.cpp +++ b/src/modules/m_timedbans.cpp @@ -1,230 +1,267 @@ -/* +------------------------------------+ - * | Inspire Internet Relay Chat Daemon | - * +------------------------------------+ +/* + * InspIRCd -- Internet Relay Chat Daemon * - * InspIRCd is copyright (C) 2002-2006 ChatSpike-Dev. - * E-mail: - * - * - * - * Written by Craig Edwards, Craig McLure, and others. - * This program is free but copyrighted software; see - * the file COPYING for details. + * 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 . */ -using namespace std; - -/* $ModDesc: Adds timed bans */ -#include -#include -#include "users.h" -#include "channels.h" -#include "modules.h" - -#include "hashcomp.h" -#include "configreader.h" #include "inspircd.h" +#include "listmode.h" - - - -class TimedBan : public classbase +// Holds a timed ban +class TimedBan { public: - std::string channel; std::string mask; + std::string setter; time_t expire; + Channel* chan; }; typedef std::vector timedbans; timedbans TimedBanList; -class cmd_tban : public command_t +// Handle /TBAN +class CommandTban : public Command { - public: - cmd_tban (InspIRCd* Instance) : command_t(Instance,"TBAN", 0, 3) - { - this->source = "m_timedbans.so"; - syntax = " "; - } + ChanModeReference banmode; - void Handle (const char** parameters, int pcnt, userrec *user) + bool IsBanSet(Channel* chan, const std::string& mask) { - chanrec* channel = ServerInstance->FindChan(parameters[0]); - if (channel) + ListModeBase* banlm = static_cast(*banmode); + if (!banlm) + return false; + + const ListModeBase::ModeList* bans = banlm->GetList(chan); + if (bans) { - int cm = channel->GetStatus(user); - if ((cm == STATUS_HOP) || (cm == STATUS_OP)) + for (ListModeBase::ModeList::const_iterator i = bans->begin(); i != bans->end(); ++i) { - if (!ServerInstance->IsValidMask(parameters[2])) - { - user->WriteServ("NOTICE "+std::string(user->nick)+" :Invalid ban mask"); - return; - } - 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; - } - } - TimedBan T; - std::string channelname = parameters[0]; - unsigned long expire = ServerInstance->Duration(parameters[1]) + time(NULL); - if (ServerInstance->Duration(parameters[1]) < 1) - { - user->WriteServ("NOTICE "+std::string(user->nick)+" :Invalid ban time"); - return; - } - char duration[MAXBUF]; - snprintf(duration,MAXBUF,"%lu",ServerInstance->Duration(parameters[1])); - 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 %s seconds.", channel->name, user->nick, mask.c_str(), duration); - } - return; + const ListModeBase::ListItem& ban = *i; + if (irc::equals(ban.mask, mask)) + return true; } - 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; } - user->WriteServ("401 %s %s :No such channel",user->nick, parameters[0]); + + return false; } -}; -class ModuleTimedBans : public Module -{ - cmd_tban* mycommand; public: - ModuleTimedBans(InspIRCd* Me) - : Module::Module(Me) + bool sendnotice; + + CommandTban(Module* Creator) + : Command(Creator,"TBAN", 3) + , banmode(Creator, "ban") + { + syntax = " "; + } + + CmdResult Handle(User* user, const Params& parameters) CXX11_OVERRIDE { - - mycommand = new cmd_tban(ServerInstance); - ServerInstance->AddCommand(mycommand); - TimedBanList.clear(); + 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; } - - virtual ~ModuleTimedBans() + + RouteDescriptor GetRouting(User* user, const Params& parameters) CXX11_OVERRIDE { - TimedBanList.clear(); + return ROUTE_BROADCAST; } +}; - void Implements(char* List) +class BanWatcher : public ModeWatcher +{ + public: + BanWatcher(Module* parent) + : ModeWatcher(parent, "ban", MODETYPE_CHANNEL) { - List[I_OnDelBan] = List[I_OnBackgroundTimer] = 1; } - virtual int OnDelBan(userrec* source, chanrec* chan, const std::string &banmask) + void AfterMode(User* source, User* dest, Channel* chan, const std::string& banmask, bool adding) CXX11_OVERRIDE { - for (timedbans::iterator i = TimedBanList.begin(); i < TimedBanList.end(); i++) + if (adding) + return; + + for (timedbans::iterator i = TimedBanList.begin(); i != TimedBanList.end(); ++i) { - irc::string listitem = banmask.c_str(); - irc::string target = i->mask.c_str(); - if (listitem == target) + if (i->chan != chan) + continue; + + const std::string& target = i->mask; + if (irc::equals(banmask, target)) { TimedBanList.erase(i); break; } } - return 0; } +}; + +class ChannelMatcher +{ + Channel* const chan; - virtual void OnBackgroundTimer(time_t curtime) + public: + ChannelMatcher(Channel* ch) + : chan(ch) { - 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->fd = FD_MAGIC_NUMBER; - ServerInstance->SendMode(setban,3,temp); - /* FIX: Send mode remotely*/ - std::deque n; - n.push_back(i->channel); - n.push_back("-b"); - n.push_back(i->mask); - 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() + + bool operator()(const TimedBan& tb) const { - return Version(1,0,0,0,VF_VENDOR); + return (tb.chan == chan); } }; - -class ModuleTimedBansFactory : public ModuleFactory +class ModuleTimedBans : public Module { + CommandTban cmd; + BanWatcher banwatcher; + public: - ModuleTimedBansFactory() + ModuleTimedBans() + : cmd(this) + , banwatcher(this) + { + } + + void ReadConfig(ConfigStatus& status) CXX11_OVERRIDE { + ConfigTag* tag = ServerInstance->Config->ConfValue("timedbans"); + cmd.sendnotice = tag->getBool("sendnotice", true); } - - ~ModuleTimedBansFactory() + + 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()); } - - virtual Module * CreateModule(InspIRCd* Me) + + Version GetVersion() CXX11_OVERRIDE { - return new ModuleTimedBans(Me); + 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); } - }; - -extern "C" void * init_module( void ) -{ - return new ModuleTimedBansFactory; -} +MODULE_INIT(ModuleTimedBans)