]> git.netwichtig.de Git - user/henk/code/inspircd.git/blobdiff - src/modules/m_timedbans.cpp
Some more text fixes and improvements (#1618).
[user/henk/code/inspircd.git] / src / modules / m_timedbans.cpp
index 40f740922dd97f438b70aab1c6b3b07d4986b2c2..a17d3111671b14aaed29e6317bf204419170ffc8 100644 (file)
@@ -1,28 +1,36 @@
-/*       +------------------------------------+
- *       | Inspire Internet Relay Chat Daemon |
- *       +------------------------------------+
+/*
+ * InspIRCd -- Internet Relay Chat Daemon
  *
- *  InspIRCd: (C) 2002-2007 InspIRCd Development Team
- * See: http://www.inspircd.org/wiki/index.php/Credits
+ *   Copyright (C) 2009-2010 Daniel De Graaf <danieldg@inspircd.org>
+ *   Copyright (C) 2005-2008 Craig Edwards <craigedwards@brainbox.cc>
+ *   Copyright (C) 2007 Dennis Friis <peavey@inspircd.org>
+ *   Copyright (C) 2006 Robin Burchell <robin+git@viroteck.net>
  *
- * This program is free but copyrighted software; see
- *         the file COPYING for details.
+ * 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 <http://www.gnu.org/licenses/>.
  */
 
-/* $ModDesc: Adds timed bans */
 
 #include "inspircd.h"
+#include "listmode.h"
 
 /** Holds a timed ban
  */
-class TimedBan : public classbase
+class TimedBan
 {
  public:
-       std::string channel;
        std::string mask;
        time_t expire;
+       Channel* chan;
 };
 
 typedef std::vector<TimedBan> timedbans;
@@ -30,171 +38,204 @@ timedbans TimedBanList;
 
 /** Handle /TBAN
  */
-class cmd_tban : public command_t
+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 (!strcasecmp(ban.mask.c_str(), mask.c_str()))
+                                       return true;
+                       }
+               }
+
+               return false;
+       }
+
  public:
- cmd_tban (InspIRCd* Instance) : command_t(Instance,"TBAN", 0, 3)
+       CommandTban(Module* Creator) : Command(Creator,"TBAN", 3)
+               , banmode(Creator, "ban")
        {
-               this->source = "m_timedbans.so";
                syntax = "<channel> <duration> <banmask>";
-               TRANSLATE4(TR_TEXT, TR_TEXT, TR_TEXT, TR_END);
        }
 
-       CmdResult Handle (const char** parameters, int pcnt, userrec *user)
+       CmdResult Handle(User* user, const Params& parameters) CXX11_OVERRIDE
        {
-               chanrec* channel = ServerInstance->FindChan(parameters[0]);
-               if (channel)
+               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))
                {
-                       int cm = channel->GetStatus(user);
-                       if ((cm == STATUS_HOP) || (cm == STATUS_OP))
+                       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.expire = expire + (IS_REMOTE(user) ? 5 : 0);
+               T.chan = channel;
+               TimedBanList.push_back(T);
+
+               const std::string addban = user->nick + " added a timed ban on " + mask + " lasting for " + InspIRCd::DurationString(duration) + ".";
+               // 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() : '@';
+
+               ClientProtocol::Messages::Privmsg notice(ServerInstance->FakeClient, channel, addban, MSG_NOTICE);
+               channel->Write(ServerInstance->GetRFCEvents().privmsg, notice, pfxchar);
+               ServerInstance->PI->SendChannelNotice(channel, pfxchar, addban);
+               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))
                        {
-                               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;
+                               TimedBanList.erase(i);
+                               break;
                        }
-                       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
+class ChannelMatcher
 {
-       cmd_tban* mycommand;
+       Channel* const chan;
+
  public:
-       ModuleTimedBans(InspIRCd* Me)
-               : Module(Me)
+       ChannelMatcher(Channel* ch)
+               : chan(ch)
        {
-               
-               mycommand = new cmd_tban(ServerInstance);
-               ServerInstance->AddCommand(mycommand);
-               TimedBanList.clear();
        }
-       
-       virtual ~ModuleTimedBans()
+
+       bool operator()(const TimedBan& tb) const
        {
-               TimedBanList.clear();
+               return (tb.chan == chan);
        }
+};
+
+class ModuleTimedBans : public Module
+{
+       CommandTban cmd;
+       BanWatcher banwatcher;
 
-       void Implements(char* List)
+ public:
+       ModuleTimedBans()
+               : cmd(this)
+               , banwatcher(this)
        {
-               List[I_OnDelBan] = List[I_OnBackgroundTimer] = 1;
        }
 
-       virtual int OnDelBan(userrec* source, chanrec* chan, const std::string &banmask)
+       void OnBackgroundTimer(time_t curtime) CXX11_OVERRIDE
        {
-               irc::string listitem = banmask.c_str();
-               irc::string thischan = chan->name;
-               for (timedbans::iterator i = TimedBanList.begin(); i < TimedBanList.end(); i++)
+               timedbans expired;
+               for (timedbans::iterator i = TimedBanList.begin(); i != TimedBanList.end();)
                {
-                       irc::string target = i->mask.c_str();
-                       irc::string tchan = i->channel.c_str();
-                       if ((listitem == target) && (tchan == thischan))
+                       if (curtime > i->expire)
                        {
-                               TimedBanList.erase(i);
-                               break;
+                               expired.push_back(*i);
+                               i = TimedBanList.erase(i);
                        }
+                       else
+                               ++i;
                }
-               return 0;
-       }
 
-       virtual void OnBackgroundTimer(time_t curtime)
-       {
-               bool again = true;
-               while (again)
+               for (timedbans::iterator i = expired.begin(); i != expired.end(); i++)
                {
-                       again = false;
-                       for (timedbans::iterator i = TimedBanList.begin(); i < TimedBanList.end(); i++)
+                       std::string mask = i->mask;
+                       Channel* cr = i->chan;
                        {
-                               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<std::string> 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;
-                               }
+                               const std::string expiry = "*** Timed ban on " + cr->name + " expired.";
+                               // 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() : '@';
+
+                               ClientProtocol::Messages::Privmsg notice(ClientProtocol::Messages::Privmsg::nocopy, ServerInstance->FakeClient, cr, expiry, MSG_NOTICE);
+                               cr->Write(ServerInstance->GetRFCEvents().privmsg, notice, pfxchar);
+                               ServerInstance->PI->SendChannelNotice(cr, pfxchar, expiry);
+
+                               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
+       {
+               // 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(1, 1, 0, 0, VF_COMMON | VF_VENDOR, API_VERSION);
+               return Version("Provides the TBAN command, timed channel bans", VF_COMMON | VF_VENDOR);
        }
 };
 
 MODULE_INIT(ModuleTimedBans)
-