X-Git-Url: https://git.netwichtig.de/gitweb/?a=blobdiff_plain;f=src%2Fchannels.cpp;h=19cfccc79c3f15903701001a38fb97bdddf6e910;hb=da29af8cba49d51e53d6e68237ccbf6370b6dd1f;hp=3f9391bea3bc9426a2972188ed10947bfa22a21d;hpb=a78cecbeb9c677bdd4b2f44c01195759af63485b;p=user%2Fhenk%2Fcode%2Finspircd.git diff --git a/src/channels.cpp b/src/channels.cpp index 3f9391bea..a2d5c4a30 100644 --- a/src/channels.cpp +++ b/src/channels.cpp @@ -1,1022 +1,641 @@ -/* +------------------------------------+ - * | Inspire Internet Relay Chat Daemon | - * +------------------------------------+ +/* + * InspIRCd -- Internet Relay Chat Daemon + * + * Copyright (C) 2009-2010 Daniel De Graaf + * Copyright (C) 2006-2008 Robin Burchell + * Copyright (C) 2006, 2008 Oliver Lupton + * Copyright (C) 2008 Pippijn van Steenhoven + * Copyright (C) 2003-2008 Craig Edwards + * Copyright (C) 2008 Thomas Stagner + * Copyright (C) 2007 Dennis Friis + * + * 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. * - * 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. + * 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; -#include -#include "configreader.h" #include "inspircd.h" -#include "users.h" -#include "modules.h" -#include "wildcard.h" -#include "mode.h" +#include "listmode.h" -chanrec::chanrec(InspIRCd* Instance) : ServerInstance(Instance) +namespace { - *name = *topic = *setby = *key = 0; - created = topicset = limit = 0; - internal_userlist.clear(); - memset(&modes,0,64); - age = ServerInstance->Time(true); + ChanModeReference ban(NULL, "ban"); + ChanModeReference inviteonlymode(NULL, "inviteonly"); + ChanModeReference keymode(NULL, "key"); + ChanModeReference limitmode(NULL, "limit"); } -void chanrec::SetMode(char mode,bool mode_on) +Channel::Channel(const std::string &cname, time_t ts) + : name(cname), age(ts), topicset(0) { - modes[mode-65] = mode_on; - if (!mode_on) - this->SetModeParam(mode,"",false); + if (!ServerInstance->chanlist.insert(std::make_pair(cname, this)).second) + throw CoreException("Cannot create duplicate channel " + cname); } - -void chanrec::SetModeParam(char mode,const char* parameter,bool mode_on) +void Channel::SetMode(ModeHandler* mh, bool on) { - ServerInstance->Log(DEBUG,"SetModeParam called"); - - CustomModeList::iterator n = custom_mode_params.find(mode); - - if (mode_on) - { - if (n == custom_mode_params.end()) - { - custom_mode_params[mode] = strdup(parameter); - ServerInstance->Log(DEBUG,"Custom mode parameter %c %s added",mode,parameter); - } - else - { - ServerInstance->Log(DEBUG, "Tried to set custom mode parameter for %c '%s' when it was already '%s'", mode, parameter, n->second); - } - } - else - { - if (n != custom_mode_params.end()) - { - free(n->second); - custom_mode_params.erase(n); - } - } + modes[mh->GetId()] = on; } -bool chanrec::IsModeSet(char mode) +void Channel::SetTopic(User* u, const std::string& ntopic) { - return modes[mode-65]; -} + this->topic.assign(ntopic, 0, ServerInstance->Config->Limits.MaxTopic); + this->setby.assign(ServerInstance->Config->FullHostInTopic ? u->GetFullHost() : u->nick, 0, 128); + this->WriteChannel(u, "TOPIC %s :%s", this->name.c_str(), this->topic.c_str()); + this->topicset = ServerInstance->Time(); -std::string chanrec::GetModeParameter(char mode) -{ - if (mode == 'k') - { - return this->key; - } - else if (mode == 'l') - { - return ConvToStr(this->limit); - } - else - { - CustomModeList::iterator n = custom_mode_params.find(mode); - if (n != custom_mode_params.end()) - { - return n->second; - } - return ""; - } + FOREACH_MOD(OnPostTopicChange, (u, this, this->topic)); } -long chanrec::GetUserCounter() +Membership* Channel::AddUser(User* user) { - return (this->internal_userlist.size()); -} + std::pair ret = userlist.insert(std::make_pair(user, insp::aligned_storage())); + if (!ret.second) + return NULL; -void chanrec::AddUser(userrec* user) -{ - internal_userlist[user] = user; + Membership* memb = new(ret.first->second) Membership(user, this); + return memb; } -unsigned long chanrec::DelUser(userrec* user) +void Channel::DelUser(User* user) { - CUListIter a = internal_userlist.find(user); - - if (a != internal_userlist.end()) - { - internal_userlist.erase(a); - /* And tidy any others... */ - DelOppedUser(user); - DelHalfoppedUser(user); - DelVoicedUser(user); - } - - return internal_userlist.size(); + MemberMap::iterator it = userlist.find(user); + if (it != userlist.end()) + DelUser(it); } -bool chanrec::HasUser(userrec* user) +void Channel::CheckDestroy() { - return (internal_userlist.find(user) != internal_userlist.end()); -} + if (!userlist.empty()) + return; -void chanrec::AddOppedUser(userrec* user) -{ - internal_op_userlist[user] = user; -} + ModResult res; + FIRST_MOD_RESULT(OnChannelPreDelete, res, (this)); + if (res == MOD_RES_DENY) + return; -void chanrec::DelOppedUser(userrec* user) -{ - CUListIter a = internal_op_userlist.find(user); - if (a != internal_op_userlist.end()) - { - internal_op_userlist.erase(a); + // If the channel isn't in chanlist then it is already in the cull list, don't add it again + chan_hash::iterator iter = ServerInstance->chanlist.find(this->name); + if ((iter == ServerInstance->chanlist.end()) || (iter->second != this)) return; - } -} -void chanrec::AddHalfoppedUser(userrec* user) -{ - internal_halfop_userlist[user] = user; + FOREACH_MOD(OnChannelDelete, (this)); + ServerInstance->chanlist.erase(iter); + ServerInstance->GlobalCulls.AddItem(this); } -void chanrec::DelHalfoppedUser(userrec* user) +void Channel::DelUser(const MemberMap::iterator& membiter) { - CUListIter a = internal_halfop_userlist.find(user); + Membership* memb = membiter->second; + memb->cull(); + memb->~Membership(); + userlist.erase(membiter); - if (a != internal_halfop_userlist.end()) - { - internal_halfop_userlist.erase(a); - } + // If this channel became empty then it should be removed + CheckDestroy(); } -void chanrec::AddVoicedUser(userrec* user) +Membership* Channel::GetUser(User* user) { - internal_voice_userlist[user] = user; + MemberMap::iterator i = userlist.find(user); + if (i == userlist.end()) + return NULL; + return i->second; } -void chanrec::DelVoicedUser(userrec* user) +void Channel::SetDefaultModes() { - CUListIter a = internal_voice_userlist.find(user); - - if (a != internal_voice_userlist.end()) - { - internal_voice_userlist.erase(a); - } -} + ServerInstance->Logs->Log("CHANNELS", LOG_DEBUG, "SetDefaultModes %s", + ServerInstance->Config->DefaultModes.c_str()); + irc::spacesepstream list(ServerInstance->Config->DefaultModes); + std::string modeseq; + std::string parameter; -CUList* chanrec::GetUsers() -{ - return &internal_userlist; -} + list.GetToken(modeseq); -CUList* chanrec::GetOppedUsers() -{ - return &internal_op_userlist; -} + for (std::string::iterator n = modeseq.begin(); n != modeseq.end(); ++n) + { + ModeHandler* mode = ServerInstance->Modes->FindMode(*n, MODETYPE_CHANNEL); + if (mode) + { + if (mode->IsPrefixMode()) + continue; -CUList* chanrec::GetHalfoppedUsers() -{ - return &internal_halfop_userlist; -} + if (mode->GetNumParams(true)) + { + list.GetToken(parameter); + // If the parameter begins with a ':' then it's invalid + if (parameter.c_str()[0] == ':') + continue; + } + else + parameter.clear(); -CUList* chanrec::GetVoicedUsers() -{ - return &internal_voice_userlist; + if ((mode->GetNumParams(true)) && (parameter.empty())) + continue; + + mode->OnModeChange(ServerInstance->FakeClient, ServerInstance->FakeClient, this, parameter, true); + } + } } -/* +/* * add a channel to a user, creating the record for it if needed and linking - * it to the user record + * it to the user record */ -chanrec* chanrec::JoinUser(InspIRCd* Instance, userrec *user, const char* cn, bool override, const char* key) +Channel* Channel::JoinUser(LocalUser* user, std::string cname, bool override, const std::string& key) { - if (!user || !cn) + if (user->registered != REG_ALL) + { + ServerInstance->Logs->Log("CHANNELS", LOG_DEBUG, "Attempted to join unregistered user " + user->uuid + " to channel " + cname); return NULL; + } - bool new_channel = false; - char cname[MAXBUF]; - int MOD_RESULT = 0; - strlcpy(cname,cn,CHANMAX); + /* + * We don't restrict the number of channels that remote users or users that are override-joining may be in. + * We restrict local users to channels. + * We restrict local operators to channels. + * This is a lot more logical than how it was formerly. -- w00t + */ + if (!override) + { + unsigned int maxchans = user->GetClass()->maxchans; + if (user->IsOper()) + { + unsigned int opermaxchans = ConvToInt(user->oper->getConfig("maxchans")); + // If not set, use 2.0's , if that's not set either, use limit from CC + if (!opermaxchans) + opermaxchans = ServerInstance->Config->OperMaxChans; + if (opermaxchans) + maxchans = opermaxchans; + } + if (user->chans.size() >= maxchans) + { + user->WriteNumeric(ERR_TOOMANYCHANNELS, cname, "You are on too many channels"); + return NULL; + } + } - std::string privs; + // Crop channel name if it's too long + if (cname.length() > ServerInstance->Config->Limits.ChanMax) + cname.resize(ServerInstance->Config->Limits.ChanMax); - chanrec* Ptr = Instance->FindChan(cname); + Channel* chan = ServerInstance->FindChan(cname); + bool created_by_local = (chan == NULL); // Flag that will be passed to modules in the OnUserJoin() hook later + std::string privs; // Prefix mode(letter)s to give to the joining user - if (!Ptr) + if (!chan) { - privs = "@"; + privs = ServerInstance->Config->DefaultModes.substr(0, ServerInstance->Config->DefaultModes.find(' ')); - if (IS_LOCAL(user) && override == false) + if (override == false) { - MOD_RESULT = 0; - FOREACH_RESULT_I(Instance,I_OnUserPreJoin,OnUserPreJoin(user,NULL,cname,privs)); - if (MOD_RESULT == 1) - return NULL; + // Ask the modules whether they're ok with the join, pass NULL as Channel* as the channel is yet to be created + ModResult MOD_RESULT; + FIRST_MOD_RESULT(OnUserPreJoin, MOD_RESULT, (user, NULL, cname, privs, key)); + if (MOD_RESULT == MOD_RES_DENY) + return NULL; // A module wasn't happy with the join, abort } - /* create a new one */ - Ptr = new chanrec(Instance); - Instance->chanlist[cname] = Ptr; - - strlcpy(Ptr->name, cname,CHANMAX); - - /* As spotted by jilles, dont bother to set this on remote users */ - if (IS_LOCAL(user)) - Ptr->modes[CM_TOPICLOCK] = Ptr->modes[CM_NOEXTERNAL] = 1; - - Ptr->created = Instance->Time(); - *Ptr->topic = 0; - *Ptr->setby = 0; - Ptr->topicset = 0; - Instance->Log(DEBUG,"chanrec::JoinUser(): created: %s",cname); - new_channel = true; + chan = new Channel(cname, ServerInstance->Time()); + // Set the default modes on the channel () + chan->SetDefaultModes(); } else { /* Already on the channel */ - if (Ptr->HasUser(user)) + if (chan->HasUser(user)) return NULL; - /* - * remote users are allowed us to bypass channel modes - * and bans (used by servers) - */ - if (IS_LOCAL(user) && override == false) + if (override == false) { - MOD_RESULT = 0; - FOREACH_RESULT_I(Instance,I_OnUserPreJoin,OnUserPreJoin(user,Ptr,cname,privs)); - if (MOD_RESULT == 1) - { + ModResult MOD_RESULT; + FIRST_MOD_RESULT(OnUserPreJoin, MOD_RESULT, (user, chan, cname, privs, key)); + + // A module explicitly denied the join and (hopefully) generated a message + // describing the situation, so we may stop here without sending anything + if (MOD_RESULT == MOD_RES_DENY) return NULL; - } - else if (MOD_RESULT == 0) + + // If no module returned MOD_RES_DENY or MOD_RES_ALLOW (which is the case + // most of the time) then proceed to check channel modes +k, +i, +l and bans, + // in this order. + // If a module explicitly allowed the join (by returning MOD_RES_ALLOW), + // then this entire section is skipped + if (MOD_RESULT == MOD_RES_PASSTHRU) { - if (*Ptr->key) + std::string ckey = chan->GetModeParameter(keymode); + if (!ckey.empty()) { - MOD_RESULT = 0; - FOREACH_RESULT_I(Instance,I_OnCheckKey,OnCheckKey(user, Ptr, key ? key : "")); - if (!MOD_RESULT) + FIRST_MOD_RESULT(OnCheckKey, MOD_RESULT, (user, chan, key)); + if (!MOD_RESULT.check(InspIRCd::TimingSafeCompare(ckey, key))) { - if ((!key) || strcmp(key,Ptr->key)) - { - user->WriteServ("475 %s %s :Cannot join channel (Incorrect channel key)",user->nick, Ptr->name); - return NULL; - } + // If no key provided, or key is not the right one, and can't bypass +k (not invited or option not enabled) + user->WriteNumeric(ERR_BADCHANNELKEY, chan->name, "Cannot join channel (Incorrect channel key)"); + return NULL; } } - if (Ptr->modes[CM_INVITEONLY]) + + if (chan->IsModeSet(inviteonlymode)) { - MOD_RESULT = 0; - irc::string xname(Ptr->name); - FOREACH_RESULT_I(Instance,I_OnCheckInvite,OnCheckInvite(user, Ptr)); - if (!MOD_RESULT) + FIRST_MOD_RESULT(OnCheckInvite, MOD_RESULT, (user, chan)); + if (MOD_RESULT != MOD_RES_ALLOW) { - if (user->IsInvited(xname)) - { - /* user was invited to channel */ - /* there may be an optional channel NOTICE here */ - } - else - { - user->WriteServ("473 %s %s :Cannot join channel (Invite only)",user->nick, Ptr->name); - return NULL; - } + user->WriteNumeric(ERR_INVITEONLYCHAN, chan->name, "Cannot join channel (Invite only)"); + return NULL; } - user->RemoveInvite(xname); } - if (Ptr->limit) + + std::string limit = chan->GetModeParameter(limitmode); + if (!limit.empty()) { - MOD_RESULT = 0; - FOREACH_RESULT_I(Instance,I_OnCheckLimit,OnCheckLimit(user, Ptr)); - if (!MOD_RESULT) + FIRST_MOD_RESULT(OnCheckLimit, MOD_RESULT, (user, chan)); + if (!MOD_RESULT.check((chan->GetUserCounter() < atol(limit.c_str())))) { - if (Ptr->GetUserCounter() >= Ptr->limit) - { - user->WriteServ("471 %s %s :Cannot join channel (Channel is full)",user->nick, Ptr->name); - return NULL; - } + user->WriteNumeric(ERR_CHANNELISFULL, chan->name, "Cannot join channel (Channel is full)"); + return NULL; } } - if (Ptr->bans.size()) + + if (chan->IsBanned(user)) { - if (Ptr->IsBanned(user)) - { - user->WriteServ("474 %s %s :Cannot join channel (You're banned)",user->nick, Ptr->name); - return NULL; - } + user->WriteNumeric(ERR_BANNEDFROMCHAN, chan->name, "Cannot join channel (You're banned)"); + return NULL; } } } - else - { - Instance->Log(DEBUG,"chanrec::JoinUser(): Overridden checks"); - } - } - - /* NOTE: If the user is an oper here, we can extend their user->chans by up to - * OPERMAXCHANS. For remote users which are not bound by the channel limits, - * we can extend infinitely. Otherwise, nope, youre restricted to MAXCHANS. - */ - if (!IS_LOCAL(user) || override == true) /* was a check on fd < 0 */ - { - return chanrec::ForceChan(Instance, Ptr, user, privs); - } - else if (*user->oper) - { - /* Oper allows extension up to the OPERMAXCHANS value */ - if (user->chans.size() < OPERMAXCHANS) - { - return chanrec::ForceChan(Instance, Ptr, user, privs); - } - } - else if (user->chans.size() < MAXCHANS) - { - return chanrec::ForceChan(Instance, Ptr, user, privs); } + // We figured that this join is allowed and also created the + // channel if it didn't exist before, now do the actual join + chan->ForceJoin(user, &privs, false, created_by_local); + return chan; +} - user->WriteServ("405 %s %s :You are on too many channels",user->nick, cname); - - if (new_channel) +Membership* Channel::ForceJoin(User* user, const std::string* privs, bool bursting, bool created_by_local) +{ + if (IS_SERVER(user)) { - Instance->Log(DEBUG,"BLAMMO, Whacking channel."); - /* Things went seriously pear shaped, so take this away. bwahaha. */ - chan_hash::iterator n = Instance->chanlist.find(cname); - if (n != Instance->chanlist.end()) - { - Ptr->DelUser(user); - DELETE(Ptr); - Instance->chanlist.erase(n); - } + ServerInstance->Logs->Log("CHANNELS", LOG_DEBUG, "Attempted to join server user " + user->uuid + " to channel " + this->name); + return NULL; } - return NULL; -} - -chanrec* chanrec::ForceChan(InspIRCd* Instance, chanrec* Ptr, userrec* user, const std::string &privs) -{ - userrec* dummyuser = new userrec(Instance); - std::string nick = user->nick; + Membership* memb = this->AddUser(user); + if (!memb) + return NULL; // Already on the channel - dummyuser->SetFd(FD_MAGIC_NUMBER); - Ptr->AddUser(user); - user->ModChannelCount(1); + user->chans.push_front(memb); - for (std::string::const_iterator x = privs.begin(); x != privs.end(); x++) + if (privs) { - const char status = *x; - ModeHandler* mh = Instance->Modes->FindPrefix(status); - if (mh) + // If the user was granted prefix modes (in the OnUserPreJoin hook, or he's a + // remote user and his own server set the modes), then set them internally now + for (std::string::const_iterator i = privs->begin(); i != privs->end(); ++i) { - Ptr->SetPrefix(user, status, mh->GetPrefixRank(), true); - /* Make sure that the mode handler knows this mode was now set */ - mh->OnModeChange(dummyuser, dummyuser, Ptr, nick, true); - - switch (mh->GetPrefix()) + PrefixMode* mh = ServerInstance->Modes->FindPrefixMode(*i); + if (mh) { - /* These logic ops are SAFE IN THIS CASE - * because if the entry doesnt exist, - * addressing operator[] creates it. - * If they do exist, it points to it. - * At all other times where we dont want - * to create an item if it doesnt exist, we - * must stick to ::find(). - */ - case '@': - user->chans[Ptr] |= STATUS_OP; - break; - case '%': - user->chans[Ptr] |= STATUS_HOP; - break; - case '+': - user->chans[Ptr] |= STATUS_VOICE; - break; + std::string nick = user->nick; + // Set the mode on the user + mh->OnModeChange(ServerInstance->FakeClient, NULL, this, nick, true); } } } - delete dummyuser; + // Tell modules about this join, they have the chance now to populate except_list with users we won't send the JOIN (and possibly MODE) to + CUList except_list; + FOREACH_MOD(OnUserJoin, (memb, bursting, created_by_local, except_list)); - Ptr->WriteChannel(user,"JOIN :%s",Ptr->name); + this->WriteAllExcept(user, false, 0, except_list, "JOIN :%s", this->name.c_str()); /* Theyre not the first ones in here, make sure everyone else sees the modes we gave the user */ - std::string ms = Instance->Modes->ModeString(user, Ptr); - if ((Ptr->GetUserCounter() > 1) && (ms.length())) - Ptr->WriteAllExceptSender(user, true, 0, "MODE %s +%s", Ptr->name, ms.c_str()); - - /* Major improvement by Brain - we dont need to be calculating all this pointlessly for remote users */ - if (IS_LOCAL(user)) + if ((GetUserCounter() > 1) && (!memb->modes.empty())) { - if (Ptr->topicset) - { - user->WriteServ("332 %s %s :%s", user->nick, Ptr->name, Ptr->topic); - user->WriteServ("333 %s %s %s %lu", user->nick, Ptr->name, Ptr->setby, (unsigned long)Ptr->topicset); - } - Ptr->UserList(user); + std::string ms = memb->modes; + for(unsigned int i=0; i < memb->modes.length(); i++) + ms.append(" ").append(user->nick); + + except_list.insert(user); + this->WriteAllExcept(user, !ServerInstance->Config->CycleHostsFromUser, 0, except_list, "MODE %s +%s", this->name.c_str(), ms.c_str()); } - FOREACH_MOD_I(Instance,I_OnUserJoin,OnUserJoin(user,Ptr)); - FOREACH_MOD_I(Instance,I_OnPostJoin,OnPostJoin(user,Ptr)); - return Ptr; + + FOREACH_MOD(OnPostJoin, (memb)); + return memb; } -bool chanrec::IsBanned(userrec* user) +bool Channel::IsBanned(User* user) { - char mask[MAXBUF]; - int MOD_RESULT = 0; - FOREACH_RESULT(I_OnCheckBan,OnCheckBan(user, this)); - if (!MOD_RESULT) + ModResult result; + FIRST_MOD_RESULT(OnCheckChannelBan, result, (user, this)); + + if (result != MOD_RES_PASSTHRU) + return (result == MOD_RES_DENY); + + ListModeBase* banlm = static_cast(*ban); + const ListModeBase::ModeList* bans = banlm->GetList(this); + if (bans) { - snprintf(mask, MAXBUF, "%s!%s@%s", user->nick, user->ident, user->GetIPString()); - for (BanList::iterator i = this->bans.begin(); i != this->bans.end(); i++) + for (ListModeBase::ModeList::const_iterator it = bans->begin(); it != bans->end(); it++) { - /* This allows CIDR ban matching - * - * Full masked host Full unmasked host IP with/without CIDR - */ - if ((match(user->GetFullHost(),i->data)) || (match(user->GetFullRealHost(),i->data)) || (match(mask, i->data, true))) - { + if (CheckBan(user, it->mask)) return true; - } } } return false; } -/* chanrec::PartUser - * remove a channel from a users record, and return the number of users left. - * Therefore, if this function returns 0 the caller should delete the chanrec. - */ -long chanrec::PartUser(userrec *user, const char* reason) +bool Channel::CheckBan(User* user, const std::string& mask) { - if (!user) - return this->GetUserCounter(); + ModResult result; + FIRST_MOD_RESULT(OnCheckBan, result, (user, this, mask)); + if (result != MOD_RES_PASSTHRU) + return (result == MOD_RES_DENY); - UCListIter i = user->chans.find(this); - if (i != user->chans.end()) - { - FOREACH_MOD(I_OnUserPart,OnUserPart(user, this, reason ? reason : "")); - this->WriteChannel(user, "PART %s%s%s", this->name, reason ? " :" : "", reason ? reason : ""); - user->chans.erase(i); - user->ModChannelCount(-1); - this->RemoveAllPrefixes(user); - } + // extbans were handled above, if this is one it obviously didn't match + if ((mask.length() <= 2) || (mask[1] == ':')) + return false; - if (!this->DelUser(user)) /* if there are no users left on the channel... */ + std::string::size_type at = mask.find('@'); + if (at == std::string::npos) + return false; + + const std::string nickIdent = user->nick + "!" + user->ident; + std::string prefix(mask, 0, at); + if (InspIRCd::Match(nickIdent, prefix, NULL)) { - chan_hash::iterator iter = ServerInstance->chanlist.find(this->name); - /* kill the record */ - if (iter != ServerInstance->chanlist.end()) - { - ServerInstance->Log(DEBUG,"del_channel: destroyed: %s", this->name); - FOREACH_MOD(I_OnChannelDelete,OnChannelDelete(this)); - ServerInstance->chanlist.erase(iter); - } - return 0; + std::string suffix(mask, at + 1); + if (InspIRCd::Match(user->host, suffix, NULL) || + InspIRCd::Match(user->dhost, suffix, NULL) || + InspIRCd::MatchCIDR(user->GetIPString(), suffix, NULL)) + return true; } - - return this->GetUserCounter(); + return false; } -long chanrec::ServerKickUser(userrec* user, const char* reason, bool triggerevents) +ModResult Channel::GetExtBanStatus(User *user, char type) { - if (!user || !reason) - return this->GetUserCounter(); - - if (IS_LOCAL(user)) - { - if (!this->HasUser(user)) - { - /* Not on channel */ - return this->GetUserCounter(); - } - } - - if (triggerevents) - { - FOREACH_MOD(I_OnUserKick,OnUserKick(NULL,user,this,reason)); - } - - UCListIter i = user->chans.find(this); - if (i != user->chans.end()) - { - this->WriteChannelWithServ(ServerInstance->Config->ServerName, "KICK %s %s :%s", this->name, user->nick, reason); - user->chans.erase(i); - this->RemoveAllPrefixes(user); - } + ModResult rv; + FIRST_MOD_RESULT(OnExtBanCheck, rv, (user, this, type)); + if (rv != MOD_RES_PASSTHRU) + return rv; - if (!this->DelUser(user)) + ListModeBase* banlm = static_cast(*ban); + const ListModeBase::ModeList* bans = banlm->GetList(this); + if (bans) { - chan_hash::iterator iter = ServerInstance->chanlist.find(this->name); - /* kill the record */ - if (iter != ServerInstance->chanlist.end()) + for (ListModeBase::ModeList::const_iterator it = bans->begin(); it != bans->end(); ++it) { - FOREACH_MOD(I_OnChannelDelete,OnChannelDelete(this)); - ServerInstance->chanlist.erase(iter); + if (CheckBan(user, it->mask)) + return MOD_RES_DENY; } - return 0; } - - return this->GetUserCounter(); + return MOD_RES_PASSTHRU; } -long chanrec::KickUser(userrec *src, userrec *user, const char* reason) +/* Channel::PartUser + * Remove a channel from a users record, remove the reference to the Membership object + * from the channel and destroy it. + */ +bool Channel::PartUser(User* user, std::string& reason) { - if (!src || !user || !reason) - return this->GetUserCounter(); - - if (IS_LOCAL(src)) - { - if (!this->HasUser(user)) - { - src->WriteServ("441 %s %s %s :They are not on that channel",src->nick, user->nick, this->name); - return this->GetUserCounter(); - } - if ((ServerInstance->ULine(user->server)) && (!ServerInstance->ULine(src->server))) - { - src->WriteServ("482 %s %s :Only a u-line may kick a u-line from a channel.",src->nick, this->name); - return this->GetUserCounter(); - } - int MOD_RESULT = 0; - - if (!ServerInstance->ULine(src->server)) - { - MOD_RESULT = 0; - FOREACH_RESULT(I_OnUserPreKick,OnUserPreKick(src,user,this,reason)); - if (MOD_RESULT == 1) - return this->GetUserCounter(); - } - /* Set to -1 by OnUserPreKick if explicit allow was set */ - if (MOD_RESULT != -1) - { - FOREACH_RESULT(I_OnAccessCheck,OnAccessCheck(src,user,this,AC_KICK)); - if ((MOD_RESULT == ACR_DENY) && (!ServerInstance->ULine(src->server))) - return this->GetUserCounter(); - - if ((MOD_RESULT == ACR_DEFAULT) || (!ServerInstance->ULine(src->server))) - { - int them = this->GetStatus(src); - int us = this->GetStatus(user); - if ((them < STATUS_HOP) || (them < us)) - { - src->WriteServ("482 %s %s :You must be a channel %soperator",src->nick, this->name, them == STATUS_HOP ? "" : "half-"); - return this->GetUserCounter(); - } - } - } - } + MemberMap::iterator membiter = userlist.find(user); - FOREACH_MOD(I_OnUserKick,OnUserKick(src,user,this,reason)); + if (membiter == userlist.end()) + return false; - UCListIter i = user->chans.find(this); - if (i != user->chans.end()) - { - /* zap it from the channel list of the user */ - this->WriteChannel(src, "KICK %s %s :%s", this->name, user->nick, reason); - user->chans.erase(i); - this->RemoveAllPrefixes(user); - } + Membership* memb = membiter->second; + CUList except_list; + FOREACH_MOD(OnUserPart, (memb, reason, except_list)); - if (!this->DelUser(user)) - /* if there are no users left on the channel */ - { - chan_hash::iterator iter = ServerInstance->chanlist.find(this->name); + WriteAllExcept(user, false, 0, except_list, "PART %s%s%s", this->name.c_str(), reason.empty() ? "" : " :", reason.c_str()); - /* kill the record */ - if (iter != ServerInstance->chanlist.end()) - { - FOREACH_MOD(I_OnChannelDelete,OnChannelDelete(this)); - ServerInstance->chanlist.erase(iter); - } - return 0; - } + // Remove this channel from the user's chanlist + user->chans.erase(memb); + // Remove the Membership from this channel's userlist and destroy it + this->DelUser(membiter); - return this->GetUserCounter(); + return true; } -void chanrec::WriteChannel(userrec* user, char* text, ...) +void Channel::KickUser(User* src, const MemberMap::iterator& victimiter, const std::string& reason) { - char textbuffer[MAXBUF]; - va_list argsPtr; - - if (!user || !text) - return; + Membership* memb = victimiter->second; + CUList except_list; + FOREACH_MOD(OnUserKick, (src, memb, reason, except_list)); - va_start(argsPtr, text); - vsnprintf(textbuffer, MAXBUF, text, argsPtr); - va_end(argsPtr); + User* victim = memb->user; + WriteAllExcept(src, false, 0, except_list, "KICK %s %s :%s", name.c_str(), victim->nick.c_str(), reason.c_str()); - this->WriteChannel(user, std::string(textbuffer)); + victim->chans.erase(memb); + this->DelUser(victimiter); } -void chanrec::WriteChannel(userrec* user, const std::string &text) +void Channel::WriteChannel(User* user, const char* text, ...) { - CUList *ulist = this->GetUsers(); + std::string textbuffer; + VAFORMAT(textbuffer, text, text); + this->WriteChannel(user, textbuffer); +} - if (!user) - return; +void Channel::WriteChannel(User* user, const std::string &text) +{ + const std::string message = ":" + user->GetFullHost() + " " + text; - for (CUList::iterator i = ulist->begin(); i != ulist->end(); i++) + for (MemberMap::iterator i = userlist.begin(); i != userlist.end(); i++) { - if (IS_LOCAL(i->second)) - user->WriteTo(i->second,text); + if (IS_LOCAL(i->first)) + i->first->Write(message); } } -void chanrec::WriteChannelWithServ(const char* ServName, const char* text, ...) +void Channel::WriteChannelWithServ(const std::string& ServName, const char* text, ...) { - char textbuffer[MAXBUF]; - va_list argsPtr; - - if (!text) - return; - - va_start(argsPtr, text); - vsnprintf(textbuffer, MAXBUF, text, argsPtr); - va_end(argsPtr); - - this->WriteChannelWithServ(ServName, std::string(textbuffer)); + std::string textbuffer; + VAFORMAT(textbuffer, text, text); + this->WriteChannelWithServ(ServName, textbuffer); } -void chanrec::WriteChannelWithServ(const char* ServName, const std::string &text) +void Channel::WriteChannelWithServ(const std::string& ServName, const std::string &text) { - CUList *ulist = this->GetUsers(); + const std::string message = ":" + (ServName.empty() ? ServerInstance->Config->ServerName : ServName) + " " + text; - for (CUList::iterator i = ulist->begin(); i != ulist->end(); i++) + for (MemberMap::iterator i = userlist.begin(); i != userlist.end(); i++) { - if (IS_LOCAL(i->second)) - i->second->WriteServ(text); + if (IS_LOCAL(i->first)) + i->first->Write(message); } } /* write formatted text from a source user to all users on a channel except * for the sender (for privmsg etc) */ -void chanrec::WriteAllExceptSender(userrec* user, bool serversource, char status, char* text, ...) +void Channel::WriteAllExceptSender(User* user, bool serversource, char status, const char* text, ...) { - char textbuffer[MAXBUF]; - va_list argsPtr; - - if (!text) - return; - - va_start(argsPtr, text); - vsnprintf(textbuffer, MAXBUF, text, argsPtr); - va_end(argsPtr); - - this->WriteAllExceptSender(user, serversource, status, std::string(textbuffer)); + std::string textbuffer; + VAFORMAT(textbuffer, text, text); + this->WriteAllExceptSender(user, serversource, status, textbuffer); } -void chanrec::WriteAllExcept(userrec* user, bool serversource, char status, CUList &except_list, char* text, ...) +void Channel::WriteAllExcept(User* user, bool serversource, char status, CUList &except_list, const char* text, ...) { - char textbuffer[MAXBUF]; - va_list argsPtr; - - if (!text) - return; - - va_start(argsPtr, text); - vsnprintf(textbuffer, MAXBUF, text, argsPtr); - va_end(argsPtr); - - this->WriteAllExcept(user, serversource, status, except_list, std::string(textbuffer)); + std::string textbuffer; + VAFORMAT(textbuffer, text, text); + textbuffer = ":" + (serversource ? ServerInstance->Config->ServerName : user->GetFullHost()) + " " + textbuffer; + this->RawWriteAllExcept(user, serversource, status, except_list, textbuffer); } -void chanrec::WriteAllExcept(userrec* user, bool serversource, char status, CUList &except_list, const std::string &text) +void Channel::WriteAllExcept(User* user, bool serversource, char status, CUList &except_list, const std::string &text) { - CUList *ulist; + const std::string message = ":" + (serversource ? ServerInstance->Config->ServerName : user->GetFullHost()) + " " + text; + this->RawWriteAllExcept(user, serversource, status, except_list, message); +} - switch (status) +void Channel::RawWriteAllExcept(User* user, bool serversource, char status, CUList &except_list, const std::string &out) +{ + unsigned int minrank = 0; + if (status) { - case '@': - ulist = this->GetOppedUsers(); - break; - case '%': - ulist = this->GetHalfoppedUsers(); - break; - case '+': - ulist = this->GetVoicedUsers(); - break; - default: - ulist = this->GetUsers(); - break; + PrefixMode* mh = ServerInstance->Modes->FindPrefix(status); + if (mh) + minrank = mh->GetPrefixRank(); } - - for (CUList::iterator i = ulist->begin(); i != ulist->end(); i++) + for (MemberMap::iterator i = userlist.begin(); i != userlist.end(); i++) { - if ((IS_LOCAL(i->second)) && (except_list.find(i->second) == except_list.end())) + if (IS_LOCAL(i->first) && (except_list.find(i->first) == except_list.end())) { - if (serversource) - i->second->WriteServ(text); - else - i->second->WriteFrom(user,text); + /* User doesn't have the status we're after */ + if (minrank && i->second->getRank() < minrank) + continue; + + i->first->Write(out); } } } -void chanrec::WriteAllExceptSender(userrec* user, bool serversource, char status, const std::string& text) +void Channel::WriteAllExceptSender(User* user, bool serversource, char status, const std::string& text) { CUList except_list; - except_list[user] = user; + except_list.insert(user); this->WriteAllExcept(user, serversource, status, except_list, std::string(text)); } -/* - * return a count of the users on a specific channel accounting for - * invisible users who won't increase the count. e.g. for /LIST - */ -int chanrec::CountInvisible() -{ - int count = 0; - CUList *ulist= this->GetUsers(); - for (CUList::iterator i = ulist->begin(); i != ulist->end(); i++) - { - if (!(i->second->modes[UM_INVISIBLE])) - count++; - } - - return count; -} - -char* chanrec::ChanModes(bool showkey) +const char* Channel::ChanModes(bool showkey) { - static char scratch[MAXBUF]; - static char sparam[MAXBUF]; - char* offset = scratch; - std::string extparam = ""; + static std::string scratch; + std::string sparam; - *scratch = '\0'; - *sparam = '\0'; + scratch.clear(); - /* This was still iterating up to 190, chanrec::modes is only 64 elements -- Om */ + /* This was still iterating up to 190, Channel::modes is only 64 elements -- Om */ for(int n = 0; n < 64; n++) { - if(this->modes[n]) + ModeHandler* mh = ServerInstance->Modes->FindMode(n + 65, MODETYPE_CHANNEL); + if (mh && IsModeSet(mh)) { - *offset++ = n + 65; - extparam = ""; - switch (n) + scratch.push_back(n + 65); + + ParamModeBase* pm = mh->IsParameterMode(); + if (!pm) + continue; + + if (n == 'k' - 65 && !showkey) { - case CM_KEY: - extparam = (showkey ? this->key : ""); - break; - case CM_LIMIT: - extparam = ConvToStr(this->limit); - break; - case CM_NOEXTERNAL: - case CM_TOPICLOCK: - case CM_INVITEONLY: - case CM_MODERATED: - case CM_SECRET: - case CM_PRIVATE: - /* We know these have no parameters */ - break; - default: - extparam = this->GetModeParameter(n + 65); - break; + sparam += " "; } - if (extparam != "") + else { - charlcat(sparam,' ',MAXBUF); - strlcat(sparam,extparam.c_str(),MAXBUF); + sparam += ' '; + pm->GetParameter(this, sparam); } } } - /* Null terminate scratch */ - *offset = '\0'; - strlcat(scratch,sparam,MAXBUF); - return scratch; + scratch += sparam; + return scratch.c_str(); } -/* compile a userlist of a channel into a string, each nick seperated by - * spaces and op, voice etc status shown as @ and +, and send it to 'user' +/* returns the status character for a given user on a channel, e.g. @ for op, + * % for halfop etc. If the user has several modes set, the highest mode + * the user has must be returned. */ -void chanrec::UserList(userrec *user) +char Membership::GetPrefixChar() const { - char list[MAXBUF]; - size_t dlen, curlen; - int MOD_RESULT = 0; - - if (!IS_LOCAL(user)) - return; - - FOREACH_RESULT(I_OnUserList,OnUserList(user, this)); - ServerInstance->Log(DEBUG,"MOD_RESULT for UserList = %d",MOD_RESULT); - if (MOD_RESULT == 1) - return; - - ServerInstance->Log(DEBUG,"Using builtin NAMES list generation"); - - dlen = curlen = snprintf(list,MAXBUF,"353 %s = %s :", user->nick, this->name); - - int numusers = 0; - char* ptr = list + dlen; + char pf = 0; + unsigned int bestrank = 0; - CUList *ulist= this->GetUsers(); - - /* Improvement by Brain - this doesnt change in value, so why was it inside - * the loop? - */ - bool has_user = this->HasUser(user); - - for (CUList::iterator i = ulist->begin(); i != ulist->end(); i++) - { - if ((!has_user) && (i->second->modes[UM_INVISIBLE])) - { - /* - * user is +i, and source not on the channel, does not show - * nick in NAMES list - */ - continue; - } - - size_t ptrlen = snprintf(ptr, MAXBUF, "%s%s ", this->GetPrefixChar(i->second), i->second->nick); - - curlen += ptrlen; - ptr += ptrlen; - - numusers++; - - if (curlen > (480-NICKMAX)) - { - /* list overflowed into multiple numerics */ - user->WriteServ(std::string(list)); - - /* reset our lengths */ - dlen = curlen = snprintf(list,MAXBUF,"353 %s = %s :", user->nick, this->name); - ptr = list + dlen; - - ptrlen = 0; - numusers = 0; - } - } - - /* if whats left in the list isnt empty, send it */ - if (numusers) - { - user->WriteServ(std::string(list)); - } - - user->WriteServ("366 %s %s :End of /NAMES list.", user->nick, this->name); -} - -long chanrec::GetMaxBans() -{ - for (std::map::iterator n = ServerInstance->Config->maxbans.begin(); n != ServerInstance->Config->maxbans.end(); n++) + for (std::string::const_iterator i = modes.begin(); i != modes.end(); ++i) { - if (match(this->name,n->first.c_str())) + PrefixMode* mh = ServerInstance->Modes->FindPrefixMode(*i); + if (mh && mh->GetPrefixRank() > bestrank && mh->GetPrefix()) { - return n->second; + bestrank = mh->GetPrefixRank(); + pf = mh->GetPrefix(); } } - return 64; + return pf; } - -/* returns the status character for a given user on a channel, e.g. @ for op, - * % for halfop etc. If the user has several modes set, the highest mode - * the user has must be returned. - */ -const char* chanrec::GetPrefixChar(userrec *user) +unsigned int Membership::getRank() { - static char pf[2] = {0, 0}; - - prefixlist::iterator n = prefixes.find(user); - if (n != prefixes.end()) + char mchar = modes.c_str()[0]; + unsigned int rv = 0; + if (mchar) { - if (n->second.size()) - { - /* If the user has any prefixes, their highest prefix - * will always be at the head of the list, as the list is - * sorted in rank order highest first (see SetPrefix() - * for reasons why) - */ - *pf = n->second.begin()->first; - return pf; - } + PrefixMode* mh = ServerInstance->Modes->FindPrefixMode(mchar); + if (mh) + rv = mh->GetPrefixRank(); } - - *pf = 0; - return pf; + return rv; } -const char* chanrec::GetAllPrefixChars(userrec* user) +const char* Membership::GetAllPrefixChars() const { - static char prefix[MAXBUF]; + static char prefix[64]; int ctr = 0; - *prefix = 0; - prefixlist::iterator n = prefixes.find(user); - if (n != prefixes.end()) + for (std::string::const_iterator i = modes.begin(); i != modes.end(); ++i) { - for (std::vector::iterator x = n->second.begin(); x != n->second.end(); x++) - { - prefix[ctr++] = x->first; - } + PrefixMode* mh = ServerInstance->Modes->FindPrefixMode(*i); + if (mh && mh->GetPrefix()) + prefix[ctr++] = mh->GetPrefix(); } - prefix[ctr] = 0; return prefix; } -unsigned int chanrec::GetPrefixValue(userrec* user) +unsigned int Channel::GetPrefixValue(User* user) { - prefixlist::iterator n = prefixes.find(user); - if (n != prefixes.end()) - { - if (n->second.size()) - return n->second.begin()->second; - } - return 0; -} - -int chanrec::GetStatusFlags(userrec *user) -{ - UCListIter i = user->chans.find(this); - if (i != user->chans.end()) - { - return i->second; - } - return 0; + MemberMap::iterator m = userlist.find(user); + if (m == userlist.end()) + return 0; + return m->second->getRank(); } -int chanrec::GetStatus(userrec *user) +bool Membership::SetPrefix(PrefixMode* delta_mh, bool adding) { - if (ServerInstance->ULine(user->server)) - return STATUS_OP; - - UCListIter i = user->chans.find(this); - if (i != user->chans.end()) + char prefix = delta_mh->GetModeChar(); + for (unsigned int i = 0; i < modes.length(); i++) { - if ((i->second & UCMODE_OP) > 0) + char mchar = modes[i]; + PrefixMode* mh = ServerInstance->Modes->FindPrefixMode(mchar); + if (mh && mh->GetPrefixRank() <= delta_mh->GetPrefixRank()) { - return STATUS_OP; + modes = modes.substr(0,i) + + (adding ? std::string(1, prefix) : "") + + modes.substr(mchar == prefix ? i+1 : i); + return adding != (mchar == prefix); } - if ((i->second & UCMODE_HOP) > 0) - { - return STATUS_HOP; - } - if ((i->second & UCMODE_VOICE) > 0) - { - return STATUS_VOICE; - } - return STATUS_NORMAL; } - return STATUS_NORMAL; -} - -void chanrec::SetPrefix(userrec* user, char prefix, unsigned int prefix_value, bool adding) -{ - prefixlist::iterator n = prefixes.find(user); - prefixtype pfx = std::make_pair(prefix,prefix_value); if (adding) - { - if (n != prefixes.end()) - { - if (std::find(n->second.begin(), n->second.end(), pfx) == n->second.end()) - { - n->second.push_back(pfx); - /* We must keep prefixes in rank order, largest first. - * This is for two reasons, firstly because x-chat *ass-u-me's* this - * state, and secondly it turns out to be a benefit to us later. - * See above in GetPrefix(). - */ - std::sort(n->second.begin(), n->second.end(), ModeParser::PrefixComparison); - } - } - else - { - pfxcontainer one; - one.push_back(pfx); - prefixes.insert(std::make_pair(user, one)); - } - } - else - { - if (n != prefixes.end()) - { - pfxcontainer::iterator x = std::find(n->second.begin(), n->second.end(), pfx); - if (x != n->second.end()) - n->second.erase(x); - } - } - ServerInstance->Log(DEBUG,"Added prefix %c to %s for %s, prefixlist size is now %d", prefix, this->name, user->nick, prefixes.size()); -} - -void chanrec::RemoveAllPrefixes(userrec* user) -{ - prefixlist::iterator n = prefixes.find(user); - if (n != prefixes.end()) - { - ServerInstance->Log(DEBUG,"Removed prefixes from %s for %s, prefixlist size is now %d", this->name, user->nick, prefixes.size()); - prefixes.erase(n); - } + modes.push_back(prefix); + return adding; } -