X-Git-Url: https://git.netwichtig.de/gitweb/?a=blobdiff_plain;f=src%2Fchannels.cpp;h=edb4d056a0cbc3d9aeb9a132f5020163af20a242;hb=0bf71e271b00a2a4c87c0fd5bf04f2d8dad167d3;hp=8e7d4af06cc5426e1d76f231587c29e350cd7462;hpb=4fb31d6a3494a99819225fe36da75c5991461dc6;p=user%2Fhenk%2Fcode%2Finspircd.git diff --git a/src/channels.cpp b/src/channels.cpp index 8e7d4af06..edb4d056a 100644 --- a/src/channels.cpp +++ b/src/channels.cpp @@ -1,22 +1,37 @@ -/* +------------------------------------+ - * | 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 * - * InspIRCd: (C) 2002-2010 InspIRCd Development Team - * See: http://wiki.inspircd.org/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 */ #include "inspircd.h" +#include "listmode.h" #include #include "mode.h" +static ModeReference ban(NULL, "ban"); + Channel::Channel(const std::string &cname, time_t ts) { chan_hash::iterator findchan = ServerInstance->chanlist->find(cname); @@ -27,7 +42,7 @@ Channel::Channel(const std::string &cname, time_t ts) this->name.assign(cname, 0, ServerInstance->Config->Limits.ChanMax); this->age = ts ? ts : ServerInstance->Time(); - maxbans = topicset = 0; + topicset = 0; modes.reset(); } @@ -131,8 +146,11 @@ long Channel::GetUserCounter() Membership* Channel::AddUser(User* user) { - Membership* memb = new Membership(user, this); - userlist[user] = memb; + Membership*& memb = userlist[user]; + if (memb) + return NULL; + + memb = new Membership(user, this); return memb; } @@ -160,6 +178,8 @@ void Channel::DelUser(User* user) FOREACH_MOD(I_OnChannelDelete, OnChannelDelete(this)); ServerInstance->chanlist->erase(iter); } + + ClearInvites(); ServerInstance->GlobalCulls.AddItem(this); } } @@ -184,7 +204,7 @@ const UserMembList* Channel::GetUsers() void Channel::SetDefaultModes() { - ServerInstance->Logs->Log("CHANNELS", DEBUG, "SetDefaultModes %s", + ServerInstance->Logs->Log("CHANNELS", LOG_DEBUG, "SetDefaultModes %s", ServerInstance->Config->DefaultModes.c_str()); irc::spacesepstream list(ServerInstance->Config->DefaultModes); std::string modeseq; @@ -211,15 +231,13 @@ void Channel::SetDefaultModes() * add a channel to a user, creating the record for it if needed and linking * it to the user record */ -Channel* Channel::JoinUser(User *user, const char* cn, bool override, const char* key, bool bursting, time_t TS) +Channel* Channel::JoinUser(LocalUser* user, std::string cname, bool override, const std::string& key) { - // Fix: unregistered users could be joined using /SAJOIN - if (!user || !cn || user->registered != REG_ALL) + 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]; - 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. @@ -227,13 +245,13 @@ Channel* Channel::JoinUser(User *user, const char* cn, bool override, const char * We restrict local operators to OperMaxChans channels. * This is a lot more logical than how it was formerly. -- w00t */ - if (IS_LOCAL(user) && !override) + if (!override) { if (user->HasPrivPermission("channels/high-join-limit")) { if (user->chans.size() >= ServerInstance->Config->OperMaxChans) { - user->WriteNumeric(ERR_TOOMANYCHANNELS, "%s %s :You are on too many channels",user->nick.c_str(), cn); + user->WriteNumeric(ERR_TOOMANYCHANNELS, "%s %s :You are on too many channels",user->nick.c_str(), cname.c_str()); return NULL; } } @@ -244,101 +262,99 @@ Channel* Channel::JoinUser(User *user, const char* cn, bool override, const char maxchans = ServerInstance->Config->MaxChans; if (user->chans.size() >= maxchans) { - user->WriteNumeric(ERR_TOOMANYCHANNELS, "%s %s :You are on too many channels",user->nick.c_str(), cn); + user->WriteNumeric(ERR_TOOMANYCHANNELS, "%s %s :You are on too many channels",user->nick.c_str(), cname.c_str()); return NULL; } } } - strlcpy(cname, cn, ServerInstance->Config->Limits.ChanMax); - Ptr = ServerInstance->FindChan(cname); - bool created_by_local = false; + // 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) - ServerInstance->Logs->Log("CHANNEL",DEBUG,"*** BUG *** Channel::JoinUser called for REMOTE user '%s' on channel '%s' but no TS given!", user->nick.c_str(), cn); - } - else - { - privs = "o"; - created_by_local = true; - } + privs = "o"; - if (IS_LOCAL(user) && override == false) + if (override == false) { + // 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 ? key : "")); + FIRST_MOD_RESULT(OnUserPreJoin, MOD_RESULT, (user, NULL, cname, privs, key)); if (MOD_RESULT == MOD_RES_DENY) - return NULL; + return NULL; // A module wasn't happy with the join, abort } - Ptr = new Channel(cname, TS); + 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) { ModResult MOD_RESULT; - FIRST_MOD_RESULT(OnUserPreJoin, MOD_RESULT, (user, Ptr, cname, privs, key ? key : "")); + 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 == MOD_RES_PASSTHRU) + + // 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) { - std::string ckey = Ptr->GetModeParameter('k'); - bool invited = IS_LOCAL(user)->IsInvited(Ptr->name.c_str()); + std::string ckey = chan->GetModeParameter('k'); + bool invited = user->IsInvited(chan); bool can_bypass = ServerInstance->Config->InvBypassModes && invited; if (!ckey.empty()) { - FIRST_MOD_RESULT(OnCheckKey, MOD_RESULT, (user, Ptr, key ? key : "")); - if (!MOD_RESULT.check((key && ckey == key) || can_bypass)) + FIRST_MOD_RESULT(OnCheckKey, MOD_RESULT, (user, chan, key)); + if (!MOD_RESULT.check((ckey == key) || can_bypass)) { // 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, "%s %s :Cannot join channel (Incorrect channel key)",user->nick.c_str(), Ptr->name.c_str()); + user->WriteNumeric(ERR_BADCHANNELKEY, "%s %s :Cannot join channel (Incorrect channel key)",user->nick.c_str(), chan->name.c_str()); return NULL; } } - if (Ptr->IsModeSet('i')) + if (chan->IsModeSet('i')) { - FIRST_MOD_RESULT(OnCheckInvite, MOD_RESULT, (user, Ptr)); + FIRST_MOD_RESULT(OnCheckInvite, MOD_RESULT, (user, chan)); if (!MOD_RESULT.check(invited)) { - user->WriteNumeric(ERR_INVITEONLYCHAN, "%s %s :Cannot join channel (Invite only)",user->nick.c_str(), Ptr->name.c_str()); + user->WriteNumeric(ERR_INVITEONLYCHAN, "%s %s :Cannot join channel (Invite only)",user->nick.c_str(), chan->name.c_str()); return NULL; } } - std::string limit = Ptr->GetModeParameter('l'); + std::string limit = chan->GetModeParameter('l'); if (!limit.empty()) { - FIRST_MOD_RESULT(OnCheckLimit, MOD_RESULT, (user, Ptr)); - if (!MOD_RESULT.check((Ptr->GetUserCounter() < atol(limit.c_str()) || can_bypass))) + FIRST_MOD_RESULT(OnCheckLimit, MOD_RESULT, (user, chan)); + if (!MOD_RESULT.check((chan->GetUserCounter() < atol(limit.c_str()) || can_bypass))) { - user->WriteNumeric(ERR_CHANNELISFULL, "%s %s :Cannot join channel (Channel is full)",user->nick.c_str(), Ptr->name.c_str()); + user->WriteNumeric(ERR_CHANNELISFULL, "%s %s :Cannot join channel (Channel is full)",user->nick.c_str(), chan->name.c_str()); return NULL; } } - if (Ptr->IsBanned(user) && !can_bypass) + if (chan->IsBanned(user) && !can_bypass) { - user->WriteNumeric(ERR_BANNEDFROMCHAN, "%s %s :Cannot join channel (You're banned)",user->nick.c_str(), Ptr->name.c_str()); + user->WriteNumeric(ERR_BANNEDFROMCHAN, "%s %s :Cannot join channel (You're banned)",user->nick.c_str(), chan->name.c_str()); return NULL; } @@ -348,63 +364,78 @@ Channel* Channel::JoinUser(User *user, const char* cn, bool override, const char */ if (invited) { - IS_LOCAL(user)->RemoveInvite(Ptr->name.c_str()); + user->RemoveInvite(chan); } } } } - if (created_by_local) - { - /* As spotted by jilles, dont bother to set this on remote users */ - Ptr->SetDefaultModes(); - } - - return Channel::ForceChan(Ptr, user, privs, bursting, created_by_local); + // 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(Channel* Ptr, User* user, const std::string &privs, bool bursting, bool created) +void Channel::ForceJoin(User* user, const std::string* privs, bool bursting, bool created_by_local) { - std::string nick = user->nick; + Membership* memb = this->AddUser(user); + if (!memb) + return; // Already on the channel + + if (IS_SERVER(user)) + { + ServerInstance->Logs->Log("CHANNELS", LOG_DEBUG, "Attempted to join server user " + user->uuid + " to channel " + this->name); + return; + } - Membership* memb = Ptr->AddUser(user); - user->chans.insert(Ptr); + user->chans.insert(this); - for (std::string::const_iterator x = privs.begin(); x != privs.end(); x++) + if (privs) { - const char status = *x; - ModeHandler* mh = ServerInstance->Modes->FindMode(status, MODETYPE_CHANNEL); - 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 + memb->modes = *privs; + for (std::string::const_iterator i = privs->begin(); i != privs->end(); ++i) { - /* Set, and make sure that the mode handler knows this mode was now set */ - Ptr->SetPrefix(user, mh->GetModeChar(), true); - mh->OnModeChange(ServerInstance->FakeClient, ServerInstance->FakeClient, Ptr, nick, true); + ModeHandler* mh = ServerInstance->Modes->FindMode(*i, MODETYPE_CHANNEL); + if (mh) + { + std::string nick = user->nick; + /* Set, and make sure that the mode handler knows this mode was now set */ + this->SetPrefix(user, mh->GetModeChar(), true); + mh->OnModeChange(ServerInstance->FakeClient, ServerInstance->FakeClient, this, nick, true); + } } } + // 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(I_OnUserJoin,OnUserJoin(memb, bursting, created, except_list)); + FOREACH_MOD(I_OnUserJoin,OnUserJoin(memb, bursting, created_by_local, except_list)); - Ptr->WriteAllExcept(user, false, 0, except_list, "JOIN :%s", Ptr->name.c_str()); + 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 = memb->modes; - for(unsigned int i=0; i < memb->modes.length(); i++) - ms.append(" ").append(user->nick); - if ((Ptr->GetUserCounter() > 1) && (ms.length())) - Ptr->WriteAllExceptSender(user, ServerInstance->Config->CycleHostsFromUser, 0, "MODE %s +%s", Ptr->name.c_str(), ms.c_str()); + if ((GetUserCounter() > 1) && (!memb->modes.empty())) + { + 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()); + } if (IS_LOCAL(user)) { - if (Ptr->topicset) + if (this->topicset) { - user->WriteNumeric(RPL_TOPIC, "%s %s :%s", user->nick.c_str(), Ptr->name.c_str(), Ptr->topic.c_str()); - user->WriteNumeric(RPL_TOPICTIME, "%s %s %s %lu", user->nick.c_str(), Ptr->name.c_str(), Ptr->setby.c_str(), (unsigned long)Ptr->topicset); + user->WriteNumeric(RPL_TOPIC, "%s %s :%s", user->nick.c_str(), this->name.c_str(), this->topic.c_str()); + user->WriteNumeric(RPL_TOPICTIME, "%s %s %s %lu", user->nick.c_str(), this->name.c_str(), this->setby.c_str(), (unsigned long)this->topicset); } - Ptr->UserList(user); + this->UserList(user); } + FOREACH_MOD(I_OnPostJoin,OnPostJoin(memb)); - return Ptr; } bool Channel::IsBanned(User* user) @@ -415,10 +446,15 @@ bool Channel::IsBanned(User* user) if (result != MOD_RES_PASSTHRU) return (result == MOD_RES_DENY); - for (BanList::iterator i = this->bans.begin(); i != this->bans.end(); i++) + ListModeBase* banlm = static_cast(*ban); + const ListModeBase::ModeList* bans = banlm->GetList(this); + if (bans) { - if (CheckBan(user, i->data)) - return true; + for (ListModeBase::ModeList::const_iterator it = bans->begin(); it != bans->end(); it++) + { + if (CheckBan(user, it->mask)) + return true; + } } return false; } @@ -431,7 +467,7 @@ bool Channel::CheckBan(User* user, const std::string& mask) return (result == MOD_RES_DENY); // extbans were handled above, if this is one it obviously didn't match - if (mask[1] == ':') + if ((mask.length() <= 2) || (mask[1] == ':')) return false; std::string::size_type at = mask.find('@'); @@ -458,12 +494,15 @@ ModResult Channel::GetExtBanStatus(User *user, char type) FIRST_MOD_RESULT(OnExtBanCheck, rv, (user, this, type)); if (rv != MOD_RES_PASSTHRU) return rv; - for (BanList::iterator i = this->bans.begin(); i != this->bans.end(); i++) + + ListModeBase* banlm = static_cast(*ban); + const ListModeBase::ModeList* bans = banlm->GetList(this); + if (bans) + { - if (i->data[0] == type && i->data[1] == ':') + for (ListModeBase::ModeList::const_iterator it = bans->begin(); it != bans->end(); ++it) { - std::string val = i->data.substr(2); - if (CheckBan(user, val)) + if (CheckBan(user, it->mask)) return MOD_RES_DENY; } } @@ -643,7 +682,7 @@ void Channel::WriteAllExcept(User* user, bool serversource, char status, CUList if (!text) return; - int offset = snprintf(textbuffer,MAXBUF,":%s ", user->GetFullHost().c_str()); + int offset = snprintf(textbuffer,MAXBUF,":%s ", serversource ? ServerInstance->Config->ServerName.c_str() : user->GetFullHost().c_str()); va_start(argsPtr, text); vsnprintf(textbuffer + offset, MAXBUF - offset, text, argsPtr); @@ -700,7 +739,7 @@ int Channel::CountInvisible() int count = 0; for (UserMembIter i = userlist.begin(); i != userlist.end(); i++) { - if (!(i->first->IsModeSet('i'))) + if (!i->first->quitting && !i->first->IsModeSet('i')) count++; } @@ -775,6 +814,8 @@ void Channel::UserList(User *user) for (UserMembIter i = userlist.begin(); i != userlist.end(); i++) { + if (i->first->quitting) + continue; if ((!has_user) && (i->first->IsModeSet('i'))) { /* @@ -804,7 +845,6 @@ void Channel::UserList(User *user) dlen = curlen = snprintf(list,MAXBUF,"%s %c %s :", user->nick.c_str(), this->IsModeSet('s') ? '@' : this->IsModeSet('p') ? '*' : '=', this->name.c_str()); ptr = list + dlen; - ptrlen = 0; numusers = 0; } @@ -825,32 +865,6 @@ void Channel::UserList(User *user) user->WriteNumeric(RPL_ENDOFNAMES, "%s %s :End of /NAMES list.", user->nick.c_str(), this->name.c_str()); } -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 (InspIRCd::Match(this->name, n->first, NULL)) - { - this->maxbans = n->second; - return n->second; - } - } - - /* Screw it, just return the default of 64 */ - this->maxbans = 64; - return this->maxbans; -} - -void Channel::ResetMaxBans() -{ - this->maxbans = 0; -} - /* 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. @@ -954,3 +968,90 @@ void Channel::RemoveAllPrefixes(User* user) m->second->modes.clear(); } } + +void Invitation::Create(Channel* c, LocalUser* u, time_t timeout) +{ + if ((timeout != 0) && (ServerInstance->Time() >= timeout)) + // Expired, don't bother + return; + + ServerInstance->Logs->Log("INVITATION", LOG_DEBUG, "Invitation::Create chan=%s user=%s", c->name.c_str(), u->uuid.c_str()); + + Invitation* inv = Invitation::Find(c, u, false); + if (inv) + { + if ((inv->expiry == 0) || (inv->expiry > timeout)) + return; + inv->expiry = timeout; + ServerInstance->Logs->Log("INVITATION", LOG_DEBUG, "Invitation::Create changed expiry in existing invitation %p", (void*) inv); + } + else + { + inv = new Invitation(c, u, timeout); + c->invites.push_back(inv); + u->invites.push_back(inv); + ServerInstance->Logs->Log("INVITATION", LOG_DEBUG, "Invitation::Create created new invitation %p", (void*) inv); + } +} + +Invitation* Invitation::Find(Channel* c, LocalUser* u, bool check_expired) +{ + ServerInstance->Logs->Log("INVITATION", LOG_DEBUG, "Invitation::Find chan=%s user=%s check_expired=%d", c ? c->name.c_str() : "NULL", u ? u->uuid.c_str() : "NULL", check_expired); + if (!u || u->invites.empty()) + return NULL; + + InviteList locallist; + locallist.swap(u->invites); + + Invitation* result = NULL; + for (InviteList::iterator i = locallist.begin(); i != locallist.end(); ) + { + Invitation* inv = *i; + if ((check_expired) && (inv->expiry != 0) && (inv->expiry <= ServerInstance->Time())) + { + /* Expired invite, remove it. */ + std::string expiration = ServerInstance->TimeString(inv->expiry); + ServerInstance->Logs->Log("INVITATION", LOG_DEBUG, "Invitation::Find ecountered expired entry: %p expired %s", (void*) inv, expiration.c_str()); + i = locallist.erase(i); + inv->cull(); + delete inv; + } + else + { + /* Is it what we're searching for? */ + if (inv->chan == c) + { + result = inv; + break; + } + ++i; + } + } + + locallist.swap(u->invites); + ServerInstance->Logs->Log("INVITATION", LOG_DEBUG, "Invitation::Find result=%p", (void*) result); + return result; +} + +Invitation::~Invitation() +{ + // Remove this entry from both lists + InviteList::iterator it = std::find(chan->invites.begin(), chan->invites.end(), this); + if (it != chan->invites.end()) + chan->invites.erase(it); + it = std::find(user->invites.begin(), user->invites.end(), this); + if (it != user->invites.end()) + user->invites.erase(it); +} + +void InviteBase::ClearInvites() +{ + ServerInstance->Logs->Log("INVITEBASE", LOG_DEBUG, "InviteBase::ClearInvites %p", (void*) this); + InviteList locallist; + locallist.swap(invites); + for (InviteList::const_iterator i = locallist.begin(); i != locallist.end(); ++i) + { + (*i)->cull(); + delete *i; + } +}