X-Git-Url: https://git.netwichtig.de/gitweb/?a=blobdiff_plain;f=src%2Fmodules%2Fm_spanningtree%2Ffjoin.cpp;h=4ec6e1dbb0f3d502209775cbde367ce325455ba3;hb=b111d5098fe1ee306d2718c82c72f969db9d183d;hp=070051a9c58768604e33c180ad0fd6fec1f054f9;hpb=860d7530711857ff05993882be9c58cabe3bd3e3;p=user%2Fhenk%2Fcode%2Finspircd.git diff --git a/src/modules/m_spanningtree/fjoin.cpp b/src/modules/m_spanningtree/fjoin.cpp index 070051a9c..4ec6e1dbb 100644 --- a/src/modules/m_spanningtree/fjoin.cpp +++ b/src/modules/m_spanningtree/fjoin.cpp @@ -1,29 +1,34 @@ -/* +------------------------------------+ - * | Inspire Internet Relay Chat Daemon | - * +------------------------------------+ +/* + * InspIRCd -- Internet Relay Chat Daemon * - * InspIRCd: (C) 2002-2008 InspIRCd Development Team - * See: http://www.inspircd.org/wiki/index.php/Credits + * Copyright (C) 2009-2010 Daniel De Graaf + * Copyright (C) 2008 Robin Burchell + * Copyright (C) 2008 Dennis Friis + * Copyright (C) 2008 Craig Edwards * - * This program is free but copyrighted software; see - * the file COPYING for details. + * This file is part of InspIRCd. InspIRCd is free software: you can + * redistribute it and/or modify it under the terms of the GNU General Public + * License as published by the Free Software Foundation, version 2. * - * --------------------------------------------------- + * This program is distributed in the hope that it will be useful, but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS + * FOR A PARTICULAR PURPOSE. See the GNU General Public License for more + * details. + * + * You should have received a copy of the GNU General Public License + * along with this program. If not, see . */ -#include "inspircd.h" -#include "xline.h" - -#include "m_spanningtree/treesocket.h" -#include "m_spanningtree/treeserver.h" -#include "m_spanningtree/utils.h" - -/* $ModDep: m_spanningtree/utils.h m_spanningtree/treeserver.h m_spanningtree/treesocket.h */ +#include "inspircd.h" +#include "commands.h" +#include "treeserver.h" +#include "treesocket.h" /** FJOIN, almost identical to TS6 SJOIN, except for nicklist handling. */ -bool TreeSocket::ForceJoin(const std::string &source, std::deque ¶ms) +CmdResult CommandFJoin::Handle(const std::vector& params, User *srcuser) { + SpanningTreeUtilities* Utils = ((ModuleSpanningTree*)(Module*)creator)->Utils; /* 1.1 FJOIN works as follows: * * Each FJOIN is sent along with a timestamp, and the side with the lowest @@ -49,79 +54,106 @@ bool TreeSocket::ForceJoin(const std::string &source, std::deque &p * The winning side on the other hand will ignore all user modes from the * losing side, so only its own modes get applied. Life is simple for those * who succeed at internets. :-) - * - * NOTE: Unlike TS6 and dreamforge and other protocols which have SJOIN, - * FJOIN does not contain the simple-modes such as +iklmnsp. Why not, - * you ask? Well, quite simply because we don't need to. They'll be sent - * after the FJOIN by FMODE, and FMODE is timestamped, so in the event - * the losing side sends any modes for the channel which shouldnt win, - * they wont as their timestamp will be too high :-) */ - if (params.size() < 3) - return true; - irc::modestacker modestack(true); /* Modes to apply from the users in the user list */ + irc::modestacker modestack(true); /* Modes to apply from the users in the user list */ User* who = NULL; /* User we are currently checking */ std::string channel = params[0]; /* Channel name, as a string */ time_t TS = atoi(params[1].c_str()); /* Timestamp given to us for remote side */ irc::tokenstream users((params.size() > 3) ? params[params.size() - 1] : ""); /* users from the user list */ bool apply_other_sides_modes = true; /* True if we are accepting the other side's modes */ - Channel* chan = this->Instance->FindChan(channel); /* The channel we're sending joins to */ - time_t ourTS = chan ? chan->age : Instance->Time()+600; /* The TS of our side of the link */ + Channel* chan = ServerInstance->FindChan(channel); /* The channel we're sending joins to */ bool created = !chan; /* True if the channel doesnt exist here yet */ std::string item; /* One item in the list of nicks */ - if (params.size() > 3) - params[params.size() - 1] = ":" + params[params.size() - 1]; - - Utils->DoOneToAllButSender(source,"FJOIN",params,source); + TreeServer* src_server = Utils->FindServer(srcuser->server); + TreeSocket* src_socket = src_server->GetRoute()->GetSocket(); if (!TS) { - Instance->Logs->Log("m_spanningtree",DEFAULT,"*** BUG? *** TS of 0 sent to FJOIN. Are some services authors smoking craq, or is it 1970 again?. Dropped."); - Instance->SNO->WriteToSnoMask('d', "WARNING: The server %s is sending FJOIN with a TS of zero. Total craq. Command was dropped.", source.c_str()); - return true; + ServerInstance->Logs->Log("m_spanningtree",DEFAULT,"*** BUG? *** TS of 0 sent to FJOIN. Are some services authors smoking craq, or is it 1970 again?. Dropped."); + ServerInstance->SNO->WriteToSnoMask('d', "WARNING: The server %s is sending FJOIN with a TS of zero. Total craq. Command was dropped.", srcuser->server.c_str()); + return CMD_INVALID; } if (created) - chan = new Channel(Instance, channel, ourTS); - - /* If our TS is less than theirs, we dont accept their modes */ - if (ourTS < TS) - apply_other_sides_modes = false; - - /* Our TS greater than theirs, clear all our modes from the channel, accept theirs. */ - if (ourTS > TS) { - std::deque param_list; - if (Utils->AnnounceTSChange && chan) - chan->WriteChannelWithServ(Instance->Config->ServerName, "NOTICE %s :TS for %s changed from %lu to %lu", chan->name, chan->name, (unsigned long) ourTS, (unsigned long) TS); - ourTS = TS; - if (!created) + chan = new Channel(channel, TS); + ServerInstance->SNO->WriteToSnoMask('d', "Creation FJOIN received for %s, timestamp: %lu", chan->name.c_str(), (unsigned long)TS); + } + else + { + time_t ourTS = chan->age; + + if (TS != ourTS) + ServerInstance->SNO->WriteToSnoMask('d', "Merge FJOIN received for %s, ourTS: %lu, TS: %lu, difference: %ld", + chan->name.c_str(), (unsigned long)ourTS, (unsigned long)TS, (long)(ourTS - TS)); + /* If our TS is less than theirs, we dont accept their modes */ + if (ourTS < TS) + { + ServerInstance->SNO->WriteToSnoMask('d', "NOT Applying modes from other side"); + apply_other_sides_modes = false; + } + else if (ourTS > TS) { + /* Our TS greater than theirs, clear all our modes from the channel, accept theirs. */ + ServerInstance->SNO->WriteToSnoMask('d', "Removing our modes, accepting remote"); + parameterlist param_list; + if (Utils->AnnounceTSChange) + chan->WriteChannelWithServ(ServerInstance->Config->ServerName, "NOTICE %s :TS for %s changed from %lu to %lu", chan->name.c_str(), channel.c_str(), (unsigned long) ourTS, (unsigned long) TS); + // while the name is equal in case-insensitive compare, it might differ in case; use the remote version + chan->name = channel; chan->age = TS; + chan->ClearInvites(); param_list.push_back(channel); - this->RemoveStatus(Instance->Config->GetSID(), param_list); + this->RemoveStatus(ServerInstance->FakeClient, param_list); + + // XXX: If the channel does not exist in the chan hash at this point, create it so the remote modes can be applied on it. + // This happens to 0-user permanent channels on the losing side, because those are removed (from the chan hash, then + // deleted later) as soon as the permchan mode is removed from them. + if (ServerInstance->FindChan(channel) == NULL) + { + chan = new Channel(channel, TS); + } } + // The silent case here is ourTS == TS, we don't need to remove modes here, just to merge them later on. } /* First up, apply their modes if they won the TS war */ if (apply_other_sides_modes) { - unsigned int idx = 2; - int numpara = 1; + // Need to use a modestacker here due to maxmodes + irc::modestacker stack(true); + std::vector::const_iterator paramit = params.begin() + 3; + const std::vector::const_iterator lastparamit = ((params.size() > 3) ? (params.end() - 1) : params.end()); + for (std::string::const_iterator i = params[2].begin(); i != params[2].end(); ++i) + { + ModeHandler* mh = ServerInstance->Modes->FindMode(*i, MODETYPE_CHANNEL); + if (!mh) + continue; + + std::string modeparam; + if ((paramit != lastparamit) && (mh->GetNumParams(true))) + { + modeparam = *paramit; + ++paramit; + } + + stack.Push(*i, modeparam); + } + std::vector modelist; // Mode parser needs to know what channel to act on. - modelist[0] = params[0]; + modelist.push_back(params[0]); - /* Remember, params[params.size() - 1] is nicklist, and we don't want to apply *that* */ - for (idx = 2; idx != (params.size() - 1); idx++) + while (stack.GetStackedLine(modelist)) { - modelist[numpara++] = params[idx]; + ServerInstance->Modes->Process(modelist, srcuser, true); + modelist.erase(modelist.begin() + 1, modelist.end()); } - this->Instance->SendMode(modelist, this->Instance->FakeClient); + ServerInstance->Modes->Process(modelist, srcuser, true); } /* Now, process every 'modes,nick' pair */ @@ -137,40 +169,39 @@ bool TreeSocket::ForceJoin(const std::string &source, std::deque &p /* Iterate through all modes for this user and check they are valid. */ while ((*unparsedmodes) && (*unparsedmodes != ',')) { - ModeHandler *mh = Instance->Modes->FindMode(*unparsedmodes, MODETYPE_CHANNEL); - if (mh) - modes += *unparsedmodes; - else + ModeHandler *mh = ServerInstance->Modes->FindMode(*unparsedmodes, MODETYPE_CHANNEL); + if (!mh) { - this->SendError(std::string("Unknown status mode '")+(*unparsedmodes)+"' in FJOIN"); - return false; + ServerInstance->Logs->Log("m_spanningtree", SPARSE, "Unrecognised mode %c, dropping link", *unparsedmodes); + return CMD_INVALID; } + modes += *unparsedmodes; usr++; unparsedmodes++; } /* Advance past the comma, to the nick */ usr++; - + /* Check the user actually exists */ - who = this->Instance->FindUUID(usr); + who = ServerInstance->FindUUID(usr); if (who) { /* Check that the user's 'direction' is correct */ TreeServer* route_back_again = Utils->BestRouteTo(who->server); - if ((!route_back_again) || (route_back_again->GetSocket() != this)) + if ((!route_back_again) || (route_back_again->GetSocket() != src_socket)) continue; /* Add any modes this user had to the mode stack */ for (std::string::iterator x = modes.begin(); x != modes.end(); ++x) modestack.Push(*x, who->nick); - Channel::JoinUser(this->Instance, who, channel.c_str(), true, "", true, TS); + Channel::JoinUser(who, channel.c_str(), true, "", src_server->bursting, TS); } else { - Instance->Logs->Log("m_spanningtree",SPARSE, "Ignored nonexistant user %s in fjoin to %s (probably quit?)", usr, channel.c_str()); + ServerInstance->Logs->Log("m_spanningtree",SPARSE, "Ignored nonexistent user %s in fjoin to %s (probably quit?)", usr, channel.c_str()); continue; } } @@ -179,42 +210,34 @@ bool TreeSocket::ForceJoin(const std::string &source, std::deque &p /* Flush mode stacker if we lost the FJOIN or had equal TS */ if (apply_other_sides_modes) { - std::deque stackresult; - std::vector mode_junk; - mode_junk[0] = channel; + parameterlist stackresult; + stackresult.push_back(channel); while (modestack.GetStackedLine(stackresult)) { - for (size_t j = 0; j < stackresult.size(); j++) - { - mode_junk[j+1] = stackresult[j]; - } - Instance->SendMode(mode_junk, Instance->FakeClient); + ServerInstance->SendMode(stackresult, srcuser); + stackresult.erase(stackresult.begin() + 1, stackresult.end()); } } - - return true; + return CMD_SUCCESS; } -/** TODO: This creates a total mess of output and needs to really use irc::modestacker. - */ -bool TreeSocket::RemoveStatus(const std::string &prefix, std::deque ¶ms) +void CommandFJoin::RemoveStatus(User* srcuser, parameterlist ¶ms) { if (params.size() < 1) - return true; + return; - Channel* c = Instance->FindChan(params[0]); + Channel* c = ServerInstance->FindChan(params[0]); if (c) { irc::modestacker stack(false); - std::deque stackresult; - std::vector mode_junk; - mode_junk[0] = c->name; + parameterlist stackresult; + stackresult.push_back(c->name); for (char modeletter = 'A'; modeletter <= 'z'; ++modeletter) { - ModeHandler* mh = Instance->Modes->FindMode(modeletter, MODETYPE_CHANNEL); + ModeHandler* mh = ServerInstance->Modes->FindMode(modeletter, MODETYPE_CHANNEL); /* Passing a pointer to a modestacker here causes the mode to be put onto the mode stack, * rather than applied immediately. Module unloads require this to be done immediately, @@ -226,12 +249,9 @@ bool TreeSocket::RemoveStatus(const std::string &prefix, std::deque while (stack.GetStackedLine(stackresult)) { - for (size_t j = 0; j < stackresult.size(); j++) - mode_junk[j+1] = stackresult[j]; - - Instance->SendMode(mode_junk, Instance->FakeClient); + ServerInstance->SendMode(stackresult, srcuser); + stackresult.erase(stackresult.begin() + 1, stackresult.end()); } } - return true; } - +