]> git.netwichtig.de Git - user/henk/code/inspircd.git/blobdiff - src/modules/m_timedbans.cpp
Add support for blocking tag messages with the deaf mode.
[user/henk/code/inspircd.git] / src / modules / m_timedbans.cpp
index f633bc3e209d6ea5b19ffea5bdd61411814d1018..6cc5d01e66fd8fd1a23a2c538ea19397b2c9e949 100644 (file)
@@ -1,10 +1,20 @@
 /*
  * InspIRCd -- Internet Relay Chat Daemon
  *
+ *   Copyright (C) 2020 iwalkalone <iwalkalone69@gmail.com>
+ *   Copyright (C) 2019 Matt Schatz <genius3000@g3k.solutions>
+ *   Copyright (C) 2018 linuxdaemon <linuxdaemon.irc@gmail.com>
+ *   Copyright (C) 2017 B00mX0r <b00mx0r@aureus.pw>
+ *   Copyright (C) 2013, 2017-2018, 2020 Sadie Powell <sadie@witchery.services>
+ *   Copyright (C) 2013 Daniel Vassdal <shutter@canternet.org>
+ *   Copyright (C) 2012-2016 Attila Molnar <attilamolnar@hush.com>
+ *   Copyright (C) 2012, 2019 Robby <robby@chatbelgie.be>
  *   Copyright (C) 2009-2010 Daniel De Graaf <danieldg@inspircd.org>
- *   Copyright (C) 2005-2008 Craig Edwards <craigedwards@brainbox.cc>
+ *   Copyright (C) 2009 Uli Schlachter <psychon@inspircd.org>
+ *   Copyright (C) 2009 John Brooks <special@inspircd.org>
+ *   Copyright (C) 2007-2008 Robin Burchell <robin+git@viroteck.net>
  *   Copyright (C) 2007 Dennis Friis <peavey@inspircd.org>
- *   Copyright (C) 2006 Robin Burchell <robin+git@viroteck.net>
+ *   Copyright (C) 2005-2008, 2010 Craig Edwards <brain@inspircd.org>
  *
  * 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
  */
 
 
-/* $ModDesc: Adds timed bans */
-
 #include "inspircd.h"
+#include "listmode.h"
 
-/** Holds a timed ban
- */
+// Holds a timed ban
 class TimedBan
 {
  public:
-       std::string channel;
        std::string mask;
+       std::string setter;
        time_t expire;
        Channel* chan;
 };
@@ -38,118 +46,177 @@ class TimedBan
 typedef std::vector<TimedBan> timedbans;
 timedbans TimedBanList;
 
-/** Handle /TBAN
- */
+// Handle /TBAN
 class CommandTban : public Command
 {
+       ChanModeReference banmode;
+
+       bool IsBanSet(Channel* chan, const std::string& mask)
+       {
+               ListModeBase* banlm = static_cast<ListModeBase*>(*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:
-       CommandTban(Module* Creator) : Command(Creator,"TBAN", 3)
+       bool sendnotice;
+
+       CommandTban(Module* Creator)
+               : Command(Creator,"TBAN", 3)
+               , banmode(Creator, "ban")
        {
                syntax = "<channel> <duration> <banmask>";
-               TRANSLATE4(TR_TEXT, TR_TEXT, TR_TEXT, TR_END);
        }
 
-       CmdResult Handle (const std::vector<std::string> &parameters, User *user)
+       CmdResult Handle(User* user, const Params& parameters) CXX11_OVERRIDE
        {
                Channel* channel = ServerInstance->FindChan(parameters[0]);
                if (!channel)
                {
-                       user->WriteNumeric(401, "%s %s :No such channel",user->nick.c_str(), parameters[0].c_str());
+                       user->WriteNumeric(Numerics::NoSuchChannel(parameters[0]));
                        return CMD_FAILURE;
                }
-               int cm = channel->GetPrefixValue(user);
+
+               unsigned int cm = channel->GetPrefixValue(user);
                if (cm < HALFOP_VALUE)
                {
-                       user->WriteNumeric(482, "%s %s :You do not have permission to set bans on this channel",
-                               user->nick.c_str(), channel->name.c_str());
+                       user->WriteNumeric(ERR_CHANOPRIVSNEEDED, channel->name, "You do not have permission to set bans on this channel");
                        return CMD_FAILURE;
-               }               
+               }
 
                TimedBan T;
-               std::string channelname = parameters[0];
-               long duration = ServerInstance->Duration(parameters[1]);
-               unsigned long expire = duration + ServerInstance->Time();
-               if (duration < 1)
+               unsigned long duration;
+               if (!InspIRCd::Duration(parameters[1], duration))
                {
-                       user->WriteServ("NOTICE "+user->nick+" :Invalid ban time");
+                       user->WriteNotice("Invalid ban time");
                        return CMD_FAILURE;
                }
+               unsigned long expire = duration + ServerInstance->Time();
+
                std::string mask = parameters[2];
-               std::vector<std::string> setban;
-               setban.push_back(parameters[0]);
-               setban.push_back("+b");
                bool isextban = ((mask.size() > 2) && (mask[1] == ':'));
-               if (!isextban && !ServerInstance->IsValidMask(mask))
+               if (!isextban && !InspIRCd::IsValidMask(mask))
                        mask.append("!*@*");
-               if ((mask.length() > 250) || (!ServerInstance->IsValidMask(mask) && !isextban))
+
+               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->WriteServ("NOTICE "+user->nick+" :Invalid ban mask");
+                       user->WriteNotice("Invalid ban mask");
                        return CMD_FAILURE;
                }
-               setban.push_back(mask);
-               // use CallHandler to make it so that the user sets the mode
-               // themselves
-               ServerInstance->Parser->CallHandler("MODE",setban,user);
-               for (BanList::iterator i = channel->bans.begin(); i != channel->bans.end(); i++)
-                       if (!strcasecmp(i->data.c_str(), mask.c_str()))
-                               goto found;
-               return CMD_FAILURE;
-found:
-               CUList tmp;
-               T.channel = channelname;
+
                T.mask = mask;
+               T.setter = user->nick;
                T.expire = expire + (IS_REMOTE(user) ? 5 : 0);
                T.chan = channel;
                TimedBanList.push_back(T);
 
-               // If halfop is loaded, send notice to halfops and above, otherwise send to ops and above
-               ModeHandler* mh = ServerInstance->Modes->FindMode('h', MODETYPE_CHANNEL);
-               char pfxchar = (mh && mh->name == "halfop") ? '%' : '@';
+               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);
+               }
 
-               channel->WriteAllExcept(ServerInstance->FakeClient, true, pfxchar, tmp, "NOTICE %s :%s added a timed ban on %s lasting for %ld seconds.", channel->name.c_str(), user->nick.c_str(), mask.c_str(), duration);
                return CMD_SUCCESS;
        }
 
-       RouteDescriptor GetRouting(User* user, const std::vector<std::string>& parameters)
+       RouteDescriptor GetRouting(User* user, const Params& parameters) CXX11_OVERRIDE
        {
                return ROUTE_BROADCAST;
        }
 };
 
-class ModuleTimedBans : public Module
+class BanWatcher : public ModeWatcher
 {
-       CommandTban cmd;
  public:
-       ModuleTimedBans()
-               : cmd(this)
+       BanWatcher(Module* parent)
+               : ModeWatcher(parent, "ban", MODETYPE_CHANNEL)
        {
        }
 
-       void init()
+       void AfterMode(User* source, User* dest, Channel* chan, const std::string& banmask, bool adding) CXX11_OVERRIDE
        {
-               ServerInstance->Modules->AddService(cmd);
-               Implementation eventlist[] = { I_OnDelBan, I_OnBackgroundTimer };
-               ServerInstance->Modules->Attach(eventlist, this, sizeof(eventlist)/sizeof(Implementation));
-       }
+               if (adding)
+                       return;
 
-       virtual ModResult OnDelBan(User* source, Channel* chan, const std::string &banmask)
-       {
-               irc::string listitem = banmask.c_str();
-               irc::string thischan = chan->name.c_str();
-               for (timedbans::iterator i = TimedBanList.begin(); i != TimedBanList.end(); i++)
+               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))
+                       if (i->chan != chan)
+                               continue;
+
+                       const std::string& target = i->mask;
+                       if (irc::equals(banmask, target))
                        {
                                TimedBanList.erase(i);
                                break;
                        }
                }
-               return MOD_RES_PASSTHRU;
+       }
+};
+
+class ChannelMatcher
+{
+       Channel* const chan;
+
+ public:
+       ChannelMatcher(Channel* ch)
+               : chan(ch)
+       {
        }
 
-       virtual void OnBackgroundTimer(time_t curtime)
+       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();)
@@ -165,31 +232,36 @@ class ModuleTimedBans : public Module
 
                for (timedbans::iterator i = expired.begin(); i != expired.end(); i++)
                {
-                       std::string chan = i->channel;
-                       std::string mask = i->mask;
-                       Channel* cr = ServerInstance->FindChan(chan);
-                       if (cr)
-                       {
-                               std::vector<std::string> setban;
-                               setban.push_back(chan);
-                               setban.push_back("-b");
-                               setban.push_back(mask);
+                       const std::string mask = i->mask;
+                       Channel* cr = i->chan;
 
-                               CUList empty;
-                               std::string expiry = "*** Timed ban on " + chan + " expired.";
-                               cr->WriteAllExcept(ServerInstance->FakeClient, true, '@', empty, "NOTICE %s :%s", cr->name.c_str(), expiry.c_str());
-                               ServerInstance->PI->SendChannelNotice(cr, '@', expiry);
+                       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() : '@';
 
-                               ServerInstance->SendGlobalMode(setban, ServerInstance->FakeClient);
+                               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);
                }
        }
 
-       virtual Version GetVersion()
+       void OnChannelDelete(Channel* chan) CXX11_OVERRIDE
        {
-               return Version("Adds timed bans", VF_COMMON | VF_VENDOR);
+               // 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)
-