X-Git-Url: https://git.netwichtig.de/gitweb/?a=blobdiff_plain;f=src%2Fchannels.cpp;h=972efa92773865592db8b4c8703bb1ad09ee9c60;hb=151a902ced88b0c1f1791d975332bbe293259acb;hp=cc5a2d7d5cc1960a91b3c9dabf9b2475bc0cb0fe;hpb=ab6a7318e36bd8e0a259cd9eef3694a0f0e8684a;p=user%2Fhenk%2Fcode%2Finspircd.git diff --git a/src/channels.cpp b/src/channels.cpp index cc5a2d7d5..972efa927 100644 --- a/src/channels.cpp +++ b/src/channels.cpp @@ -1,178 +1,130 @@ -/* +------------------------------------+ - * | Inspire Internet Relay Chat Daemon | - * +------------------------------------+ +/* + * InspIRCd -- Internet Relay Chat Daemon + * + * Copyright (C) 2017 B00mX0r + * Copyright (C) 2013-2014, 2016-2020 Sadie Powell + * Copyright (C) 2013 Adam + * Copyright (C) 2012-2016, 2018 Attila Molnar + * Copyright (C) 2012, 2019 Robby + * Copyright (C) 2009-2010 Daniel De Graaf + * Copyright (C) 2007-2009 Robin Burchell + * Copyright (C) 2007 Dennis Friis + * Copyright (C) 2006-2008, 2010 Craig Edwards * - * InspIRCd: (C) 2002-2007 InspIRCd Development Team - * See: http://www.inspircd.org/wiki/index.php/Credits + * 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 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 . */ -/* $Core: libIRCDchannels */ #include "inspircd.h" -#include -#include "wildcard.h" -#include "mode.h" +#include "listmode.h" -Channel::Channel(InspIRCd* Instance) : ServerInstance(Instance) +namespace { - *name = *topic = *setby = *key = 0; - maxbans = created = topicset = limit = 0; - memset(&modes,0,64); - age = ServerInstance->Time(true); + ChanModeReference ban(NULL, "ban"); } -void Channel::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 Channel::SetModeParam(char mode,const char* parameter,bool mode_on) +void Channel::SetMode(ModeHandler* mh, bool on) { - CustomModeList::iterator n = custom_mode_params.find(mode); - - if (mode_on) - { - if (n == custom_mode_params.end()) - custom_mode_params[mode] = strdup(parameter); - } - else - { - if (n != custom_mode_params.end()) - { - free(n->second); - custom_mode_params.erase(n); - } - } + if (mh && mh->GetId() != ModeParser::MODEID_MAX) + modes[mh->GetId()] = on; } -bool Channel::IsModeSet(char mode) +void Channel::SetTopic(User* u, const std::string& ntopic, time_t topicts, const std::string* setter) { - return modes[mode-65]; -} - -std::string Channel::GetModeParameter(char mode) -{ - switch (mode) + // Send a TOPIC message to the channel only if the new topic text differs + if (this->topic != ntopic) { - case 'k': - return this->key; - case 'l': - return ConvToStr(this->limit); - default: - CustomModeList::iterator n = custom_mode_params.find(mode); - if (n != custom_mode_params.end()) - return n->second; - return ""; - break; + this->topic = ntopic; + ClientProtocol::Messages::Topic topicmsg(u, this, this->topic); + Write(ServerInstance->GetRFCEvents().topic, topicmsg); } -} -long Channel::GetUserCounter() -{ - return (this->internal_userlist.size()); -} + // Always update setter and set time + if (!setter) + setter = ServerInstance->Config->FullHostInTopic ? &u->GetFullHost() : &u->nick; + this->setby.assign(*setter, 0, ServerInstance->Config->Limits.GetMaxMask()); + this->topicset = topicts; -void Channel::AddUser(User* user) -{ - internal_userlist[user] = user->nick; + FOREACH_MOD(OnPostTopicChange, (u, this, this->topic)); } -unsigned long Channel::DelUser(User* user) +Membership* Channel::AddUser(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(); -} + std::pair ret = userlist.insert(std::make_pair(user, insp::aligned_storage())); + if (!ret.second) + return NULL; -bool Channel::HasUser(User* user) -{ - return (internal_userlist.find(user) != internal_userlist.end()); + Membership* memb = new(ret.first->second) Membership(user, this); + return memb; } -void Channel::AddOppedUser(User* user) +void Channel::DelUser(User* user) { - internal_op_userlist[user] = user->nick; + MemberMap::iterator it = userlist.find(user); + if (it != userlist.end()) + DelUser(it); } -void Channel::DelOppedUser(User* user) +void Channel::CheckDestroy() { - CUListIter a = internal_op_userlist.find(user); - if (a != internal_op_userlist.end()) - { - internal_op_userlist.erase(a); + if (!userlist.empty()) return; - } -} - -void Channel::AddHalfoppedUser(User* user) -{ - internal_halfop_userlist[user] = user->nick; -} - -void Channel::DelHalfoppedUser(User* user) -{ - CUListIter a = internal_halfop_userlist.find(user); - if (a != internal_halfop_userlist.end()) - { - internal_halfop_userlist.erase(a); - } -} - -void Channel::AddVoicedUser(User* user) -{ - internal_voice_userlist[user] = user->nick; -} + ModResult res; + FIRST_MOD_RESULT(OnChannelPreDelete, res, (this)); + if (res == MOD_RES_DENY) + return; -void Channel::DelVoicedUser(User* user) -{ - CUListIter a = internal_voice_userlist.find(user); - - if (a != internal_voice_userlist.end()) - { - internal_voice_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; -CUList* Channel::GetUsers() -{ - return &internal_userlist; + FOREACH_MOD(OnChannelDelete, (this)); + ServerInstance->chanlist.erase(iter); + ServerInstance->GlobalCulls.AddItem(this); } -CUList* Channel::GetOppedUsers() +void Channel::DelUser(const MemberMap::iterator& membiter) { - return &internal_op_userlist; -} + Membership* memb = membiter->second; + memb->cull(); + memb->~Membership(); + userlist.erase(membiter); -CUList* Channel::GetHalfoppedUsers() -{ - return &internal_halfop_userlist; + // If this channel became empty then it should be removed + CheckDestroy(); } -CUList* Channel::GetVoicedUsers() +Membership* Channel::GetUser(User* user) { - return &internal_voice_userlist; + MemberMap::iterator i = userlist.find(user); + if (i == userlist.end()) + return NULL; + return i->second; } void Channel::SetDefaultModes() { + 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; @@ -184,879 +136,439 @@ void Channel::SetDefaultModes() ModeHandler* mode = ServerInstance->Modes->FindMode(*n, MODETYPE_CHANNEL); if (mode) { - if (mode->GetNumParams(true)) + if (mode->IsPrefixMode()) + continue; + + if (mode->NeedsParam(true)) + { list.GetToken(parameter); + // If the parameter begins with a ':' then it's invalid + if (parameter.c_str()[0] == ':') + continue; + } else parameter.clear(); + if ((mode->NeedsParam(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 */ -Channel* Channel::JoinUser(InspIRCd* Instance, User *user, const char* cn, bool override, const char* key, time_t TS) +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; - - char cname[MAXBUF]; - int MOD_RESULT = 0; - std::string privs; - Channel *Ptr; + } /* * 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 MaxChans channels. - * We restrict local operators to OperMaxChans channels. + * 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 (IS_LOCAL(user) && !override) + if (!override) { - if (user->GetMaxChans()) + unsigned int maxchans = user->GetClass()->maxchans; + if (!maxchans) + maxchans = ServerInstance->Config->MaxChans; + if (user->IsOper()) { - if (user->chans.size() >= user->GetMaxChans()) - { - user->WriteServ("405 %s %s :You are on too many channels",user->nick, cn); - return NULL; - } + unsigned int opermaxchans = ConvToNum(user->oper->getConfig("maxchans")); + // If not set, use 2.0's , if that's not set either, use limit from CC + if (!opermaxchans && user->HasPrivPermission("channels/high-join-limit")) + opermaxchans = ServerInstance->Config->OperMaxChans; + if (opermaxchans) + maxchans = opermaxchans; } - else + if (user->chans.size() >= maxchans) { - if (IS_OPER(user)) - { - if (user->chans.size() >= Instance->Config->OperMaxChans) - { - user->WriteServ("405 %s %s :You are on too many channels",user->nick, cn); - return NULL; - } - } - else - { - if (user->chans.size() >= Instance->Config->MaxChans) - { - user->WriteServ("405 %s %s :You are on too many channels",user->nick, cn); - return NULL; - } - } + user->WriteNumeric(ERR_TOOMANYCHANNELS, cname, "You are on too many channels"); + return NULL; } } - strlcpy(cname, cn, CHANMAX); - Ptr = Instance->FindChan(cname); + // Crop channel name if it's too long + if (cname.length() > ServerInstance->Config->Limits.ChanMax) + cname.resize(ServerInstance->Config->Limits.ChanMax); + + 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) { - /* - * Fix: desync bug was here, don't set @ on remote users - spanningtree handles their permissions. bug #358. -- w00t - */ - if (!IS_LOCAL(user)) - { - if (!TS) - Instance->Log(DEBUG,"*** BUG *** Channel::JoinUser called for REMOTE user '%s' on channel '%s' but no TS given!", user->nick, cn); - } - else - { - 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 Channel(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->SetDefaultModes(); - - Ptr->created = TS ? TS : Instance->Time(); - Ptr->age = Ptr->created; - *Ptr->topic = 0; - *Ptr->setby = 0; - Ptr->topicset = 0; + 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 bans. + // + // 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) - { - MOD_RESULT = 0; - FOREACH_RESULT_I(Instance,I_OnCheckKey,OnCheckKey(user, Ptr, key ? key : "")); - if (!MOD_RESULT) - { - if ((!key) || strcmp(key,Ptr->key)) - { - user->WriteServ("475 %s %s :Cannot join channel (Incorrect channel key)",user->nick, Ptr->name); - return NULL; - } - } - } - if (Ptr->IsModeSet('i')) + if (chan->IsBanned(user)) { - MOD_RESULT = 0; - FOREACH_RESULT_I(Instance,I_OnCheckInvite,OnCheckInvite(user, Ptr)); - if (!MOD_RESULT) - { - if (!user->IsInvited(Ptr->name)) - { - user->WriteServ("473 %s %s :Cannot join channel (Invite only)",user->nick, Ptr->name); - return NULL; - } - } - user->RemoveInvite(Ptr->name); - } - if (Ptr->limit) - { - MOD_RESULT = 0; - FOREACH_RESULT_I(Instance,I_OnCheckLimit,OnCheckLimit(user, Ptr)); - if (!MOD_RESULT) - { - if (Ptr->GetUserCounter() >= Ptr->limit) - { - user->WriteServ("471 %s %s :Cannot join channel (Channel is full)",user->nick, Ptr->name); - return NULL; - } - } - } - if (Ptr->bans.size()) - { - 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; } } } } - return Channel::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; } -Channel* Channel::ForceChan(InspIRCd* Instance, Channel* Ptr, User* user, const std::string &privs) +Membership* Channel::ForceJoin(User* user, const std::string* privs, bool bursting, bool created_by_local) { - std::string nick = user->nick; - bool silent = false; + if (IS_SERVER(user)) + { + ServerInstance->Logs->Log("CHANNELS", LOG_DEBUG, "Attempted to join server user " + user->uuid + " to channel " + this->name); + return NULL; + } - Ptr->AddUser(user); + Membership* memb = this->AddUser(user); + if (!memb) + return NULL; // Already on the channel - /* Just in case they have no permissions */ - user->chans[Ptr] = 0; + 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 they're a + // remote user and their 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(Instance->FakeClient, Instance->FakeClient, 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] |= UCMODE_OP; - break; - case '%': - user->chans[Ptr] |= UCMODE_HOP; - break; - case '+': - user->chans[Ptr] |= UCMODE_VOICE; - break; + std::string nick = user->nick; + // Set the mode on the user + mh->OnModeChange(ServerInstance->FakeClient, NULL, this, nick, true); } } } - FOREACH_MOD_I(Instance,I_OnUserJoin,OnUserJoin(user, Ptr, silent)); - - if (!silent) - Ptr->WriteChannel(user,"JOIN :%s",Ptr->name); + // 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)); - /* 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()); + ClientProtocol::Events::Join joinevent(memb); + this->Write(joinevent, 0, except_list); - /* Major improvement by Brain - we dont need to be calculating all this pointlessly for remote users */ - if (IS_LOCAL(user)) - { - 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); - } - FOREACH_MOD_I(Instance,I_OnPostJoin,OnPostJoin(user, Ptr)); - return Ptr; + FOREACH_MOD(OnPostJoin, (memb)); + return memb; } bool Channel::IsBanned(User* user) { - char mask[MAXBUF]; - int MOD_RESULT = 0; - FOREACH_RESULT(I_OnCheckBan,OnCheckBan(user, this)); - if (!MOD_RESULT) - { - snprintf(mask, MAXBUF, "%s!%s@%s", user->nick, user->ident, user->GetIPString()); - for (BanList::iterator i = this->bans.begin(); i != this->bans.end(); i++) - { - /* 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))) - { - return true; - } - } - } - return false; -} + ModResult result; + FIRST_MOD_RESULT(OnCheckChannelBan, result, (user, this)); -/* Channel::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 Channel. - */ -long Channel::PartUser(User *user, const char* reason) -{ - bool silent = false; + if (result != MOD_RES_PASSTHRU) + return (result == MOD_RES_DENY); - if (!user) - return this->GetUserCounter(); + ListModeBase* banlm = static_cast(*ban); + if (!banlm) + return false; - UCListIter i = user->chans.find(this); - if (i != user->chans.end()) + const ListModeBase::ModeList* bans = banlm->GetList(this); + if (bans) { - FOREACH_MOD(I_OnUserPart,OnUserPart(user, this, reason ? reason : "", silent)); - - if (!silent) - this->WriteChannel(user, "PART %s%s%s", this->name, reason ? " :" : "", reason ? reason : ""); - - user->chans.erase(i); - this->RemoveAllPrefixes(user); - } - - if (!this->DelUser(user)) /* if there are no users left on the channel... */ - { - 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 true; } - return 0; } - - return this->GetUserCounter(); + return false; } -long Channel::ServerKickUser(User* user, const char* reason, bool triggerevents) +bool Channel::CheckBan(User* user, const std::string& mask) { - bool silent = false; - - 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, silent)); - } + 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()) - { - if (!silent) - this->WriteChannelWithServ(ServerInstance->Config->ServerName, "KICK %s %s :%s", this->name, user->nick, reason); + // extbans were handled above, if this is one it obviously didn't match + if ((mask.length() <= 2) || (mask[1] == ':')) + return false; - user->chans.erase(i); - this->RemoveAllPrefixes(user); - } + std::string::size_type at = mask.find('@'); + if (at == std::string::npos) + return false; - if (!this->DelUser(user)) + 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()) - { - FOREACH_MOD(I_OnChannelDelete,OnChannelDelete(this)); - ServerInstance->chanlist->erase(iter); - } - return 0; + std::string suffix(mask, at + 1); + if (InspIRCd::Match(user->GetRealHost(), suffix, NULL) || + InspIRCd::Match(user->GetDisplayedHost(), suffix, NULL) || + InspIRCd::MatchCIDR(user->GetIPString(), suffix, NULL)) + return true; } - - return this->GetUserCounter(); + return false; } -long Channel::KickUser(User *src, User *user, const char* reason) +ModResult Channel::GetExtBanStatus(User *user, char type) { - bool silent = false; + ModResult rv; + FIRST_MOD_RESULT(OnExtBanCheck, rv, (user, this, type)); + if (rv != MOD_RES_PASSTHRU) + return rv; - if (!src || !user || !reason) - return this->GetUserCounter(); + ListModeBase* banlm = static_cast(*ban); + if (!banlm) + return MOD_RES_PASSTHRU; - if (IS_LOCAL(src)) + const ListModeBase::ModeList* bans = banlm->GetList(this); + if (bans) { - 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))) + for (ListModeBase::ModeList::const_iterator it = bans->begin(); it != bans->end(); ++it) { - 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(); - } - } - } - } - - FOREACH_MOD(I_OnUserKick,OnUserKick(src, user, this, reason, silent)); - - UCListIter i = user->chans.find(this); - if (i != user->chans.end()) - { - /* zap it from the channel list of the user */ - if (!silent) - this->WriteChannel(src, "KICK %s %s :%s", this->name, user->nick, reason); - - user->chans.erase(i); - this->RemoveAllPrefixes(user); - } - - if (!this->DelUser(user)) - /* if there are no users left on the channel */ - { - chan_hash::iterator iter = ServerInstance->chanlist->find(this->name); + if (it->mask.length() <= 2 || it->mask[0] != type || it->mask[1] != ':') + continue; - /* kill the record */ - if (iter != ServerInstance->chanlist->end()) - { - FOREACH_MOD(I_OnChannelDelete,OnChannelDelete(this)); - ServerInstance->chanlist->erase(iter); + if (CheckBan(user, it->mask.substr(2))) + return MOD_RES_DENY; } - return 0; } - - return this->GetUserCounter(); + return MOD_RES_PASSTHRU; } -void Channel::WriteChannel(User* user, char* text, ...) -{ - char textbuffer[MAXBUF]; - va_list argsPtr; - - if (!user || !text) - return; - - va_start(argsPtr, text); - vsnprintf(textbuffer, MAXBUF, text, argsPtr); - va_end(argsPtr); - - this->WriteChannel(user, std::string(textbuffer)); -} - -void Channel::WriteChannel(User* user, const std::string &text) -{ - CUList *ulist = this->GetUsers(); - char tb[MAXBUF]; - - if (!user) - return; - - snprintf(tb,MAXBUF,":%s %s",user->GetFullHost(),text.c_str()); - std::string out = tb; - - for (CUList::iterator i = ulist->begin(); i != ulist->end(); i++) - { - if (IS_LOCAL(i->first)) - i->first->Write(out); - } -} - -void Channel::WriteChannelWithServ(const char* 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)); -} - -void Channel::WriteChannelWithServ(const char* ServName, const std::string &text) +/* 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) { - CUList *ulist = this->GetUsers(); - char tb[MAXBUF]; - - snprintf(tb,MAXBUF,":%s %s",ServName ? ServName : ServerInstance->Config->ServerName, text.c_str()); - std::string out = tb; + MemberMap::iterator membiter = userlist.find(user); - for (CUList::iterator i = ulist->begin(); i != ulist->end(); i++) - { - if (IS_LOCAL(i->first)) - i->first->Write(out); - } -} + if (membiter == userlist.end()) + return false; -/* write formatted text from a source user to all users on a channel except - * for the sender (for privmsg etc) */ -void Channel::WriteAllExceptSender(User* user, bool serversource, char status, char* text, ...) -{ - char textbuffer[MAXBUF]; - va_list argsPtr; + Membership* memb = membiter->second; + CUList except_list; + FOREACH_MOD(OnUserPart, (memb, reason, except_list)); - if (!text) - return; + ClientProtocol::Messages::Part partmsg(memb, reason); + Write(ServerInstance->GetRFCEvents().part, partmsg, 0, except_list); - va_start(argsPtr, text); - vsnprintf(textbuffer, MAXBUF, text, argsPtr); - va_end(argsPtr); + // 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); - this->WriteAllExceptSender(user, serversource, status, std::string(textbuffer)); + return true; } -void Channel::WriteAllExcept(User* user, bool serversource, char status, CUList &except_list, char* text, ...) +void Channel::KickUser(User* src, const MemberMap::iterator& victimiter, const std::string& reason) { - char textbuffer[MAXBUF]; - va_list argsPtr; - - if (!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); + ClientProtocol::Messages::Kick kickmsg(src, memb, reason); + Write(ServerInstance->GetRFCEvents().kick, kickmsg, 0, except_list); - this->WriteAllExcept(user, serversource, status, except_list, std::string(textbuffer)); + memb->user->chans.erase(memb); + this->DelUser(victimiter); } -void Channel::WriteAllExcept(User* user, bool serversource, char status, CUList &except_list, const std::string &text) +void Channel::Write(ClientProtocol::Event& protoev, char status, const CUList& except_list) { - CUList *ulist; - char tb[MAXBUF]; - - switch (status) + 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(); } - - snprintf(tb,MAXBUF,":%s %s",user->GetFullHost(),text.c_str()); - std::string out = tb; - - for (CUList::iterator i = ulist->begin(); i != ulist->end(); i++) + for (MemberMap::iterator i = userlist.begin(); i != userlist.end(); i++) { - if ((IS_LOCAL(i->first)) && (except_list.find(i->first) == except_list.end())) + LocalUser* user = IS_LOCAL(i->first); + if ((user) && (!except_list.count(user))) { - if (serversource) - i->first->WriteServ(text); - else - i->first->Write(out); - } - } -} + /* User doesn't have the status we're after */ + if (minrank && i->second->getRank() < minrank) + continue; -void Channel::WriteAllExceptSender(User* user, bool serversource, char status, const std::string& text) -{ - CUList except_list; - except_list[user] = user->nick; - 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 Channel::CountInvisible() -{ - int count = 0; - CUList *ulist= this->GetUsers(); - for (CUList::iterator i = ulist->begin(); i != ulist->end(); i++) - { - if (!(i->first->IsModeSet('i'))) - count++; + user->Send(protoev); + } } - - return count; } -char* Channel::ChanModes(bool showkey) +const char* Channel::ChanModes(bool showsecret) { - 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, 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.clear(); - switch (n) + scratch.push_back(n + 65); + + ParamModeBase* pm = mh->IsParameterMode(); + if (!pm) + continue; + + if (pm->IsParameterSecret() && !showsecret) { - 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 += " <" + pm->name + ">"; } - if (!extparam.empty()) + 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' - */ -void Channel::UserList(User *user, CUList *ulist) +void Channel::WriteNotice(const std::string& text, char status) { - char list[MAXBUF]; - size_t dlen, curlen; - int MOD_RESULT = 0; - - if (!IS_LOCAL(user)) - return; - - FOREACH_RESULT(I_OnUserList,OnUserList(user, this, ulist)); - if (MOD_RESULT == 1) - return; - - dlen = curlen = snprintf(list,MAXBUF,"353 %s %c %s :", user->nick, this->IsModeSet('s') ? '@' : this->IsModeSet('p') ? '*' : '=', this->name); - - int numusers = 0; - char* ptr = list + dlen; - - if (!ulist) - 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->first->IsModeSet('i'))) - { - /* - * user is +i, and source not on the channel, does not show - * nick in NAMES list - */ - continue; - } - - if (i->first->Visibility && !i->first->Visibility->VisibleTo(user)) - continue; - - size_t ptrlen = snprintf(ptr, MAXBUF, "%s%s ", this->GetPrefixChar(i->first), i->second.c_str()); - /* OnUserList can change this - reset it back to normal */ - i->second = i->first->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 %c %s :", user->nick, this->IsModeSet('s') ? '@' : this->IsModeSet('p') ? '*' : '=', 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 Channel::GetMaxBans() -{ - /* Return the cached value if there is one */ - if (this->maxbans) - return this->maxbans; - - /* If there isnt one, we have to do some O(n) hax to find it the first time. (ick) */ - for (std::map::iterator n = ServerInstance->Config->maxbans.begin(); n != ServerInstance->Config->maxbans.end(); n++) - { - if (match(this->name,n->first.c_str())) - { - this->maxbans = n->second; - return n->second; - } - } - - /* Screw it, just return the default of 64 */ - this->maxbans = 64; - return this->maxbans; + ClientProtocol::Messages::Privmsg privmsg(ClientProtocol::Messages::Privmsg::nocopy, ServerInstance->FakeClient, this, text, MSG_NOTICE, status); + Write(ServerInstance->GetRFCEvents().privmsg, privmsg); } -void Channel::ResetMaxBans() +void Channel::WriteRemoteNotice(const std::string& text, char status) { - this->maxbans = 0; + WriteNotice(text, status); + ServerInstance->PI->SendMessage(this, status, text, MSG_NOTICE); } /* 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* Channel::GetPrefixChar(User *user) +char Membership::GetPrefixChar() const { - static char pf[2] = {0, 0}; - - prefixlist::iterator n = prefixes.find(user); - if (n != prefixes.end()) + char pf = 0; + unsigned int bestrank = 0; + + for (std::string::const_iterator i = modes.begin(); i != modes.end(); ++i) { - if (n->second.size()) + PrefixMode* mh = ServerInstance->Modes->FindPrefixMode(*i); + if (mh && mh->GetPrefixRank() > bestrank && mh->GetPrefix()) { - /* 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; + bestrank = mh->GetPrefixRank(); + pf = mh->GetPrefix(); } } - - *pf = 0; return pf; } -const char* Channel::GetAllPrefixChars(User* user) +unsigned int Membership::getRank() { - static char prefix[MAXBUF]; - int ctr = 0; - *prefix = 0; - - prefixlist::iterator n = prefixes.find(user); - if (n != prefixes.end()) + char mchar = modes.c_str()[0]; + unsigned int rv = 0; + if (mchar) { - for (std::vector::iterator x = n->second.begin(); x != n->second.end(); x++) - { - prefix[ctr++] = x->first; - } + PrefixMode* mh = ServerInstance->Modes->FindPrefixMode(mchar); + if (mh) + rv = mh->GetPrefixRank(); } - - prefix[ctr] = 0; - - return prefix; + return rv; } -unsigned int Channel::GetPrefixValue(User* user) +std::string Membership::GetAllPrefixChars() const { - prefixlist::iterator n = prefixes.find(user); - if (n != prefixes.end()) + std::string ret; + for (std::string::const_iterator i = modes.begin(); i != modes.end(); ++i) { - if (n->second.size()) - return n->second.begin()->second; + PrefixMode* mh = ServerInstance->Modes->FindPrefixMode(*i); + if (mh && mh->GetPrefix()) + ret.push_back(mh->GetPrefix()); } - return 0; -} -int Channel::GetStatusFlags(User *user) -{ - UCListIter i = user->chans.find(this); - if (i != user->chans.end()) - { - return i->second; - } - return 0; + return ret; } -int Channel::GetStatus(User *user) +unsigned int Channel::GetPrefixValue(User* user) { - if (ServerInstance->ULine(user->server)) - return STATUS_OP; - - UCListIter i = user->chans.find(this); - if (i != user->chans.end()) - { - if ((i->second & UCMODE_OP) > 0) - { - return STATUS_OP; - } - if ((i->second & UCMODE_HOP) > 0) - { - return STATUS_HOP; - } - if ((i->second & UCMODE_VOICE) > 0) - { - return STATUS_VOICE; - } - return STATUS_NORMAL; - } - return STATUS_NORMAL; + MemberMap::iterator m = userlist.find(user); + if (m == userlist.end()) + return 0; + return m->second->getRank(); } -void Channel::SetPrefix(User* user, char prefix, unsigned int prefix_value, bool adding) +bool Membership::SetPrefix(PrefixMode* delta_mh, 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 + char prefix = delta_mh->GetModeChar(); + for (unsigned int i = 0; i < modes.length(); i++) { - if (n != prefixes.end()) + char mchar = modes[i]; + PrefixMode* mh = ServerInstance->Modes->FindPrefixMode(mchar); + if (mh && mh->GetPrefixRank() <= delta_mh->GetPrefixRank()) { - pfxcontainer::iterator x = std::find(n->second.begin(), n->second.end(), pfx); - if (x != n->second.end()) - n->second.erase(x); + modes = modes.substr(0,i) + + (adding ? std::string(1, prefix) : "") + + modes.substr(mchar == prefix ? i+1 : i); + return adding != (mchar == prefix); } } + if (adding) + modes.push_back(prefix); + return adding; } -void Channel::RemoveAllPrefixes(User* user) + +void Membership::WriteNotice(const std::string& text) const { - prefixlist::iterator n = prefixes.find(user); - if (n != prefixes.end()) - { - prefixes.erase(n); - } -} + LocalUser* const localuser = IS_LOCAL(user); + if (!localuser) + return; + ClientProtocol::Messages::Privmsg privmsg(ClientProtocol::Messages::Privmsg::nocopy, ServerInstance->FakeClient, this->chan, text, MSG_NOTICE); + localuser->Send(ServerInstance->GetRFCEvents().privmsg, privmsg); +}