-/* +------------------------------------+\r * | Inspire Internet Relay Chat Daemon |\r * +------------------------------------+\r *\r * InspIRCd: (C) 2002-2007 InspIRCd Development Team\r * See: http://www.inspircd.org/wiki/index.php/Credits\r *\r * This program is free but copyrighted software; see\r * the file COPYING for details.\r *\r * ---------------------------------------------------\r */\r\r#include "inspircd.h"\r#include "configreader.h"\r#include "users.h"\r#include "channels.h"\r#include "modules.h"\r#include "commands/cmd_whois.h"\r#include "commands/cmd_stats.h"\r#include "socket.h"\r#include "wildcard.h"\r#include "xline.h"\r#include "transport.h"\r#include "socketengine.h"\r\r#include "m_spanningtree/main.h"\r#include "m_spanningtree/utils.h"\r#include "m_spanningtree/treeserver.h"\r#include "m_spanningtree/link.h"\r#include "m_spanningtree/treesocket.h"\r#include "m_spanningtree/resolvers.h"\r#include "m_spanningtree/handshaketimer.h"\r\r/* $ModDep: m_spanningtree/timesynctimer.h m_spanningtree/resolvers.h m_spanningtree/main.h m_spanningtree/utils.h m_spanningtree/treeserver.h m_spanningtree/link.h m_spanningtree/treesocket.h */\r\rstatic std::map<std::string, std::string> warned; /* Server names that have had protocol violation warnings displayed for them */\r\rint TreeSocket::WriteLine(std::string line)\r{\r Instance->Log(DEBUG, "S[%d] -> %s", this->GetFd(), line.c_str());\r line.append("\r\n");\r return this->Write(line);\r}\r\r\r/* Handle ERROR command */\rbool TreeSocket::Error(std::deque<std::string> ¶ms)\r{\r if (params.size() < 1)\r return false;\r this->Instance->SNO->WriteToSnoMask('l',"ERROR from %s: %s",(!InboundServerName.empty() ? InboundServerName.c_str() : myhost.c_str()),params[0].c_str());\r /* we will return false to cause the socket to close. */\r return false;\r}\r\rbool TreeSocket::Modules(const std::string &prefix, std::deque<std::string> ¶ms)\r{\r if (params.empty())\r return true;\r\r if (!this->Instance->MatchText(this->Instance->Config->ServerName, params[0]))\r {\r /* Pass it on, not for us */\r Utils->DoOneToOne(prefix, "MODULES", params, params[0]);\r return true;\r }\r\r char strbuf[MAXBUF];\r std::deque<std::string> par;\r par.push_back(prefix);\r par.push_back("");\r\r userrec* source = this->Instance->FindNick(prefix);\r if (!source)\r return true;\r\r for (unsigned int i = 0; i < Instance->Config->module_names.size(); i++)\r {\r Version V = Instance->modules[i]->GetVersion();\r char modulename[MAXBUF];\r char flagstate[MAXBUF];\r *flagstate = 0;\r if (V.Flags & VF_STATIC)\r strlcat(flagstate,", static",MAXBUF);\r if (V.Flags & VF_VENDOR)\r strlcat(flagstate,", vendor",MAXBUF);\r if (V.Flags & VF_COMMON)\r strlcat(flagstate,", common",MAXBUF);\r if (V.Flags & VF_SERVICEPROVIDER)\r strlcat(flagstate,", service provider",MAXBUF);\r if (!flagstate[0])\r strcpy(flagstate," <no flags>");\r strlcpy(modulename,Instance->Config->module_names[i].c_str(),256);\r if (*source->oper)\r {\r snprintf(strbuf, MAXBUF, "::%s 900 %s :0x%08lx %d.%d.%d.%d %s (%s)",Instance->Config->ServerName,source->nick,(long unsigned int)Instance->modules[i],V.Major,V.Minor,V.Revision,V.Build,ServerConfig::CleanFilename(modulename),flagstate+2);\r }\r else\r {\r snprintf(strbuf, MAXBUF, "::%s 900 %s :%s",Instance->Config->ServerName,source->nick,ServerConfig::CleanFilename(modulename));\r }\r par[1] = strbuf;\r Utils->DoOneToOne(Instance->Config->ServerName, "PUSH", par, source->server);\r }\r snprintf(strbuf, MAXBUF, "::%s 901 %s :End of MODULES list", Instance->Config->ServerName, source->nick);\r par[1] = strbuf;\r Utils->DoOneToOne(Instance->Config->ServerName, "PUSH", par, source->server);\r return true;\r}\r\r/** remote MOTD. leet, huh? */\rbool TreeSocket::Motd(const std::string &prefix, std::deque<std::string> ¶ms)\r{\r if (params.size() > 0)\r {\r if (this->Instance->MatchText(this->Instance->Config->ServerName, params[0]))\r {\r /* It's for our server */\r string_list results;\r userrec* source = this->Instance->FindNick(prefix);\r\r if (source)\r {\r std::deque<std::string> par;\r par.push_back(prefix);\r par.push_back("");\r\r if (!Instance->Config->MOTD.size())\r {\r par[1] = std::string("::")+Instance->Config->ServerName+" 422 "+source->nick+" :Message of the day file is missing.";\r Utils->DoOneToOne(this->Instance->Config->ServerName, "PUSH",par, source->server);\r return true;\r }\r\r par[1] = std::string("::")+Instance->Config->ServerName+" 375 "+source->nick+" :"+Instance->Config->ServerName+" message of the day";\r Utils->DoOneToOne(this->Instance->Config->ServerName, "PUSH",par, source->server);\r\r for (unsigned int i = 0; i < Instance->Config->MOTD.size(); i++)\r {\r par[1] = std::string("::")+Instance->Config->ServerName+" 372 "+source->nick+" :- "+Instance->Config->MOTD[i];\r Utils->DoOneToOne(this->Instance->Config->ServerName, "PUSH",par, source->server);\r }\r\r par[1] = std::string("::")+Instance->Config->ServerName+" 376 "+source->nick+" End of message of the day.";\r Utils->DoOneToOne(this->Instance->Config->ServerName, "PUSH",par, source->server);\r }\r }\r else\r {\r /* Pass it on */\r userrec* source = this->Instance->FindNick(prefix);\r if (source)\r Utils->DoOneToOne(prefix, "MOTD", params, params[0]);\r }\r }\r return true;\r}\r\r/** remote ADMIN. leet, huh? */\rbool TreeSocket::Admin(const std::string &prefix, std::deque<std::string> ¶ms)\r{\r if (params.size() > 0)\r {\r if (this->Instance->MatchText(this->Instance->Config->ServerName, params[0]))\r {\r /* It's for our server */\r string_list results;\r userrec* source = this->Instance->FindNick(prefix);\r if (source)\r {\r std::deque<std::string> par;\r par.push_back(prefix);\r par.push_back("");\r par[1] = std::string("::")+Instance->Config->ServerName+" 256 "+source->nick+" :Administrative info for "+Instance->Config->ServerName;\r Utils->DoOneToOne(this->Instance->Config->ServerName, "PUSH",par, source->server);\r par[1] = std::string("::")+Instance->Config->ServerName+" 257 "+source->nick+" :Name - "+Instance->Config->AdminName;\r Utils->DoOneToOne(this->Instance->Config->ServerName, "PUSH",par, source->server);\r par[1] = std::string("::")+Instance->Config->ServerName+" 258 "+source->nick+" :Nickname - "+Instance->Config->AdminNick;\r Utils->DoOneToOne(this->Instance->Config->ServerName, "PUSH",par, source->server);\r par[1] = std::string("::")+Instance->Config->ServerName+" 258 "+source->nick+" :E-Mail - "+Instance->Config->AdminEmail;\r Utils->DoOneToOne(this->Instance->Config->ServerName, "PUSH",par, source->server);\r }\r }\r else\r {\r /* Pass it on */\r userrec* source = this->Instance->FindNick(prefix);\r if (source)\r Utils->DoOneToOne(prefix, "ADMIN", params, params[0]);\r }\r }\r return true;\r}\r\rbool TreeSocket::Stats(const std::string &prefix, std::deque<std::string> ¶ms)\r{\r /* Get the reply to a STATS query if it matches this servername,\r * and send it back as a load of PUSH queries\r */\r if (params.size() > 1)\r {\r if (this->Instance->MatchText(this->Instance->Config->ServerName, params[1]))\r {\r /* It's for our server */\r string_list results;\r userrec* source = this->Instance->FindNick(prefix);\r if (source)\r {\r std::deque<std::string> par;\r par.push_back(prefix);\r par.push_back("");\r DoStats(this->Instance, *(params[0].c_str()), source, results);\r for (size_t i = 0; i < results.size(); i++)\r {\r par[1] = "::" + results[i];\r Utils->DoOneToOne(this->Instance->Config->ServerName, "PUSH",par, source->server);\r }\r }\r }\r else\r {\r /* Pass it on */\r userrec* source = this->Instance->FindNick(prefix);\r if (source)\r Utils->DoOneToOne(prefix, "STATS", params, params[1]);\r }\r }\r return true;\r}\r\r\r/** Because the core won't let users or even SERVERS set +o,\r * we use the OPERTYPE command to do this.\r */\rbool TreeSocket::OperType(const std::string &prefix, std::deque<std::string> ¶ms)\r{\r if (params.size() != 1)\r return true;\r std::string opertype = params[0];\r userrec* u = this->Instance->FindNick(prefix);\r if (u)\r {\r u->modes[UM_OPERATOR] = 1;\r this->Instance->all_opers.push_back(u);\r strlcpy(u->oper,opertype.c_str(),NICKMAX-1);\r Utils->DoOneToAllButSender(u->nick,"OPERTYPE",params,u->server);\r this->Instance->SNO->WriteToSnoMask('o',"From %s: User %s (%s@%s) is now an IRC operator of type %s",u->server, u->nick,u->ident,u->host,irc::Spacify(opertype.c_str()));\r }\r return true;\r}\r\r/** Because Andy insists that services-compatible servers must\r * implement SVSNICK and SVSJOIN, that's exactly what we do :p\r */\rbool TreeSocket::ForceNick(const std::string &prefix, std::deque<std::string> ¶ms)\r{\r if (params.size() < 3)\r return true;\r\r userrec* u = this->Instance->FindNick(params[0]);\r\r if (u)\r {\r Utils->DoOneToAllButSender(prefix,"SVSNICK",params,prefix);\r if (IS_LOCAL(u))\r {\r std::deque<std::string> par;\r par.push_back(params[1]);\r if (!u->ForceNickChange(params[1].c_str()))\r {\r userrec::QuitUser(this->Instance, u, "Nickname collision");\r return true;\r }\r u->age = atoi(params[2].c_str());\r }\r }\r return true;\r}\r\rbool TreeSocket::OperQuit(const std::string &prefix, std::deque<std::string> ¶ms)\r{\r if (params.size() < 1)\r return true;\r\r userrec* u = this->Instance->FindNick(prefix);\r\r if (u)\r {\r u->SetOperQuit(params[0]);\r params[0] = ":" + params[0];\r Utils->DoOneToAllButSender(prefix,"OPERQUIT",params,prefix);\r }\r return true;\r}\r\rbool TreeSocket::ServiceJoin(const std::string &prefix, std::deque<std::string> ¶ms)\r{\r if (params.size() < 2)\r return true;\r\r userrec* u = this->Instance->FindNick(params[0]);\r\r if (u)\r {\r /* only join if it's local, otherwise just pass it on! */\r if (IS_LOCAL(u))\r chanrec::JoinUser(this->Instance, u, params[1].c_str(), false, "", Instance->Time());\r Utils->DoOneToAllButSender(prefix,"SVSJOIN",params,prefix);\r }\r return true;\r}\r\rbool TreeSocket::RemoteRehash(const std::string &prefix, std::deque<std::string> ¶ms)\r{\r if (params.size() < 1)\r return false;\r\r std::string servermask = params[0];\r\r if (this->Instance->MatchText(this->Instance->Config->ServerName,servermask))\r {\r this->Instance->SNO->WriteToSnoMask('l',"Remote rehash initiated by \002"+prefix+"\002.");\r this->Instance->RehashServer();\r Utils->ReadConfiguration(false);\r InitializeDisabledCommands(Instance->Config->DisabledCommands, Instance);\r }\r Utils->DoOneToAllButSender(prefix,"REHASH",params,prefix);\r return true;\r}\r\rbool TreeSocket::RemoteKill(const std::string &prefix, std::deque<std::string> ¶ms)\r{ \r if (params.size() != 2)\r return true;\r\r userrec* who = this->Instance->FindNick(params[0]);\r\r if (who)\r {\r /* Prepend kill source, if we don't have one */ \r if (*(params[1].c_str()) != '[')\r {\r params[1] = "[" + prefix + "] Killed (" + params[1] +")";\r }\r std::string reason = params[1];\r params[1] = ":" + params[1];\r Utils->DoOneToAllButSender(prefix,"KILL",params,prefix);\r // NOTE: This is safe with kill hiding on, as RemoteKill is only reached if we have a server prefix.\r // in short this is not executed for USERS.\r who->Write(":%s KILL %s :%s (%s)", prefix.c_str(), who->nick, prefix.c_str(), reason.c_str());\r userrec::QuitUser(this->Instance,who,reason);\r }\r return true;\r}\r\rbool TreeSocket::LocalPong(const std::string &prefix, std::deque<std::string> ¶ms)\r{\r if (params.size() < 1)\r return true;\r\r if (params.size() == 1)\r {\r TreeServer* ServerSource = Utils->FindServer(prefix);\r if (ServerSource)\r {\r ServerSource->SetPingFlag();\r ServerSource->rtt = Instance->Time() - ServerSource->LastPing;\r }\r }\r else\r {\r std::string forwardto = params[1];\r if (forwardto == this->Instance->Config->ServerName)\r {\r /*\r * this is a PONG for us\r * if the prefix is a user, check theyre local, and if they are,\r * dump the PONG reply back to their fd. If its a server, do nowt.\r * Services might want to send these s->s, but we dont need to yet.\r */\r userrec* u = this->Instance->FindNick(prefix);\r if (u)\r {\r u->WriteServ("PONG %s %s",params[0].c_str(),params[1].c_str());\r }\r }\r else\r {\r // not for us, pass it on :)\r Utils->DoOneToOne(prefix,"PONG",params,forwardto);\r }\r }\r\r return true;\r}\r\rbool TreeSocket::MetaData(const std::string &prefix, std::deque<std::string> ¶ms)\r{\r if (params.size() < 2)\r return true;\r else if (params.size() < 3)\r params.push_back("");\r TreeServer* ServerSource = Utils->FindServer(prefix);\r if (ServerSource)\r {\r Utils->SetRemoteBursting(ServerSource, false);\r\r if (params[0] == "*")\r {\r FOREACH_MOD_I(this->Instance,I_OnDecodeMetaData,OnDecodeMetaData(TYPE_OTHER,NULL,params[1],params[2]));\r }\r else if (*(params[0].c_str()) == '#')\r {\r chanrec* c = this->Instance->FindChan(params[0]);\r if (c)\r {\r FOREACH_MOD_I(this->Instance,I_OnDecodeMetaData,OnDecodeMetaData(TYPE_CHANNEL,c,params[1],params[2]));\r }\r }\r else if (*(params[0].c_str()) != '#')\r {\r userrec* u = this->Instance->FindNick(params[0]);\r if (u)\r {\r FOREACH_MOD_I(this->Instance,I_OnDecodeMetaData,OnDecodeMetaData(TYPE_USER,u,params[1],params[2]));\r }\r }\r }\r\r params[2] = ":" + params[2];\r Utils->DoOneToAllButSender(prefix,"METADATA",params,prefix);\r return true;\r}\r\rbool TreeSocket::ServerVersion(const std::string &prefix, std::deque<std::string> ¶ms)\r{\r if (params.size() < 1)\r return true;\r\r TreeServer* ServerSource = Utils->FindServer(prefix);\r\r if (ServerSource)\r {\r ServerSource->SetVersion(params[0]);\r }\r params[0] = ":" + params[0];\r Utils->DoOneToAllButSender(prefix,"VERSION",params,prefix);\r return true;\r}\r\rbool TreeSocket::ChangeHost(const std::string &prefix, std::deque<std::string> ¶ms)\r{\r if (params.size() < 1)\r return true;\r userrec* u = this->Instance->FindNick(prefix);\r\r if (u)\r {\r u->ChangeDisplayedHost(params[0].c_str());\r Utils->DoOneToAllButSender(prefix,"FHOST",params,u->server);\r }\r return true;\r}\r\rbool TreeSocket::AddLine(const std::string &prefix, std::deque<std::string> ¶ms)\r{\r if (params.size() < 6)\r return true;\r bool propogate = false;\r if (!this->bursting)\r Utils->lines_to_apply = 0;\r switch (*(params[0].c_str()))\r {\r case 'Z':\r propogate = Instance->XLines->add_zline(atoi(params[4].c_str()), params[2].c_str(), params[5].c_str(), params[1].c_str());\r Instance->XLines->zline_set_creation_time(params[1].c_str(), atoi(params[3].c_str()));\r if (propogate)\r Utils->lines_to_apply |= APPLY_ZLINES;\r break;\r case 'Q':\r propogate = Instance->XLines->add_qline(atoi(params[4].c_str()), params[2].c_str(), params[5].c_str(), params[1].c_str());\r Instance->XLines->qline_set_creation_time(params[1].c_str(), atoi(params[3].c_str()));\r if (propogate)\r Utils->lines_to_apply |= APPLY_QLINES;\r break;\r case 'E':\r propogate = Instance->XLines->add_eline(atoi(params[4].c_str()), params[2].c_str(), params[5].c_str(), params[1].c_str());\r Instance->XLines->eline_set_creation_time(params[1].c_str(), atoi(params[3].c_str()));\r break;\r case 'G':\r propogate = Instance->XLines->add_gline(atoi(params[4].c_str()), params[2].c_str(), params[5].c_str(), params[1].c_str());\r Instance->XLines->gline_set_creation_time(params[1].c_str(), atoi(params[3].c_str()));\r if (propogate)\r Utils->lines_to_apply |= APPLY_GLINES;\r break;\r case 'K':\r propogate = Instance->XLines->add_kline(atoi(params[4].c_str()), params[2].c_str(), params[5].c_str(), params[1].c_str());\r if (propogate)\r Utils->lines_to_apply |= APPLY_KLINES;\r break;\r default:\r /* Just in case... */\r this->Instance->SNO->WriteToSnoMask('x',"\2WARNING\2: Invalid xline type '"+params[0]+"' sent by server "+prefix+", ignored!");\r propogate = false;\r break;\r }\r /* Send it on its way */\r if (propogate)\r {\r if (atoi(params[4].c_str()))\r {\r time_t c_requires_crap = ConvToInt(params[4]) + Instance->Time();\r this->Instance->SNO->WriteToSnoMask('x',"%s Added %cLINE on %s to expire on %s (%s).",prefix.c_str(),*(params[0].c_str()),params[1].c_str(),Instance->TimeString(c_requires_crap).c_str(),params[5].c_str());\r }\r else\r {\r this->Instance->SNO->WriteToSnoMask('x',"%s Added permenant %cLINE on %s (%s).",prefix.c_str(),*(params[0].c_str()),params[1].c_str(),params[5].c_str());\r }\r params[5] = ":" + params[5];\r Utils->DoOneToAllButSender(prefix,"ADDLINE",params,prefix);\r }\r if (!this->bursting)\r {\r Instance->XLines->apply_lines(Utils->lines_to_apply);\r Utils->lines_to_apply = 0;\r }\r return true;\r}\r\rbool TreeSocket::ChangeName(const std::string &prefix, std::deque<std::string> ¶ms)\r{\r if (params.size() < 1)\r return true;\r userrec* u = this->Instance->FindNick(prefix);\r if (u)\r {\r u->ChangeName(params[0].c_str());\r params[0] = ":" + params[0];\r Utils->DoOneToAllButSender(prefix,"FNAME",params,u->server);\r }\r return true;\r}\r\rbool TreeSocket::Whois(const std::string &prefix, std::deque<std::string> ¶ms)\r{\r if (params.size() < 1)\r return true;\r userrec* u = this->Instance->FindNick(prefix);\r if (u)\r {\r // an incoming request\r if (params.size() == 1)\r {\r userrec* x = this->Instance->FindNick(params[0]);\r if ((x) && (IS_LOCAL(x)))\r {\r userrec* x = this->Instance->FindNick(params[0]);\r char signon[MAXBUF];\r char idle[MAXBUF];\r snprintf(signon, MAXBUF, "%lu", (unsigned long)x->signon);\r snprintf(idle, MAXBUF, "%lu", (unsigned long)abs((x->idle_lastmsg) - Instance->Time(true)));\r std::deque<std::string> par;\r par.push_back(prefix);\r par.push_back(signon);\r par.push_back(idle);\r // ours, we're done, pass it BACK\r Utils->DoOneToOne(params[0], "IDLE", par, u->server);\r }\r else\r {\r // not ours pass it on\r if (x)\r Utils->DoOneToOne(prefix, "IDLE", params, x->server);\r }\r }\r else if (params.size() == 3)\r {\r std::string who_did_the_whois = params[0];\r userrec* who_to_send_to = this->Instance->FindNick(who_did_the_whois);\r if ((who_to_send_to) && (IS_LOCAL(who_to_send_to)))\r {\r // an incoming reply to a whois we sent out\r std::string nick_whoised = prefix;\r unsigned long signon = atoi(params[1].c_str());\r unsigned long idle = atoi(params[2].c_str());\r if ((who_to_send_to) && (IS_LOCAL(who_to_send_to)))\r {\r do_whois(this->Instance, who_to_send_to, u, signon, idle, nick_whoised.c_str());\r }\r }\r else\r {\r // not ours, pass it on\r if (who_to_send_to)\r Utils->DoOneToOne(prefix, "IDLE", params, who_to_send_to->server);\r }\r }\r }\r return true;\r}\r\rbool TreeSocket::Push(const std::string &prefix, std::deque<std::string> ¶ms)\r{\r if (params.size() < 2)\r return true;\r userrec* u = this->Instance->FindNick(params[0]);\r if (!u)\r return true;\r if (IS_LOCAL(u))\r {\r u->Write(params[1]);\r }\r else\r {\r // continue the raw onwards\r params[1] = ":" + params[1];\r Utils->DoOneToOne(prefix,"PUSH",params,u->server);\r }\r return true;\r}\r\rbool TreeSocket::HandleSetTime(const std::string &prefix, std::deque<std::string> ¶ms)\r{\r if (!params.size() || !Utils->EnableTimeSync)\r return true;\r\r bool force = false;\r\r if ((params.size() == 2) && (params[1] == "FORCE"))\r force = true;\r\r time_t them = atoi(params[0].c_str());\r time_t us = Instance->Time(false);\r\r time_t diff = them - us;\r\r Utils->DoOneToAllButSender(prefix, "TIMESET", params, prefix);\r\r if (force || (them != us))\r {\r time_t old = Instance->SetTimeDelta(diff);\r Instance->Log(DEBUG, "TS (diff %d) from %s applied (old delta was %d)", diff, prefix.c_str(), old);\r }\r\r return true;\r}\r\rbool TreeSocket::Time(const std::string &prefix, std::deque<std::string> ¶ms)\r{\r // :source.server TIME remote.server sendernick\r // :remote.server TIME source.server sendernick TS\r if (params.size() == 2)\r {\r // someone querying our time?\r if (this->Instance->Config->ServerName == params[0])\r {\r userrec* u = this->Instance->FindNick(params[1]);\r if (u)\r {\r params.push_back(ConvToStr(Instance->Time(false)));\r params[0] = prefix;\r Utils->DoOneToOne(this->Instance->Config->ServerName,"TIME",params,params[0]);\r }\r }\r else\r {\r // not us, pass it on\r userrec* u = this->Instance->FindNick(params[1]);\r if (u)\r Utils->DoOneToOne(prefix,"TIME",params,params[0]);\r }\r }\r else if (params.size() == 3)\r {\r // a response to a previous TIME\r userrec* u = this->Instance->FindNick(params[1]);\r if ((u) && (IS_LOCAL(u)))\r {\r time_t rawtime = atol(params[2].c_str());\r struct tm * timeinfo;\r timeinfo = localtime(&rawtime);\r char tms[26];\r snprintf(tms,26,"%s",asctime(timeinfo));\r tms[24] = 0;\r u->WriteServ("391 %s %s :%s",u->nick,prefix.c_str(),tms);\r }\r else\r {\r if (u)\r Utils->DoOneToOne(prefix,"TIME",params,u->server);\r }\r }\r return true;\r}\r\rbool TreeSocket::LocalPing(const std::string &prefix, std::deque<std::string> ¶ms)\r{\r if (params.size() < 1)\r return true;\r if (params.size() == 1)\r {\r std::string stufftobounce = params[0];\r this->WriteLine(std::string(":")+this->Instance->Config->ServerName+" PONG "+stufftobounce);\r return true;\r }\r else\r {\r std::string forwardto = params[1];\r if (forwardto == this->Instance->Config->ServerName)\r {\r // this is a ping for us, send back PONG to the requesting server\r params[1] = params[0];\r params[0] = forwardto;\r Utils->DoOneToOne(forwardto,"PONG",params,params[1]);\r }\r else\r {\r // not for us, pass it on :)\r Utils->DoOneToOne(prefix,"PING",params,forwardto);\r }\r return true;\r }\r}\r\r/** TODO: This creates a total mess of output and needs to really use irc::modestacker.\r */\rbool TreeSocket::RemoveStatus(const std::string &prefix, std::deque<std::string> ¶ms)\r{\r if (params.size() < 1)\r return true;\r chanrec* c = Instance->FindChan(params[0]);\r if (c)\r {\r for (char modeletter = 'A'; modeletter <= 'z'; modeletter++)\r {\r ModeHandler* mh = Instance->Modes->FindMode(modeletter, MODETYPE_CHANNEL);\r if (mh)\r mh->RemoveMode(c);\r }\r }\r return true;\r}\r\rbool TreeSocket::RemoteServer(const std::string &prefix, std::deque<std::string> ¶ms)\r{\r if (params.size() < 4)\r return false;\r std::string servername = params[0];\r std::string password = params[1];\r // hopcount is not used for a remote server, we calculate this ourselves\r std::string description = params[3];\r TreeServer* ParentOfThis = Utils->FindServer(prefix);\r if (!ParentOfThis)\r {\r this->SendError("Protocol error - Introduced remote server from unknown server "+prefix);\r return false;\r }\r TreeServer* CheckDupe = Utils->FindServer(servername);\r if (CheckDupe)\r {\r this->SendError("Server "+servername+" already exists!");\r this->Instance->SNO->WriteToSnoMask('l',"Server \2"+servername+"\2 being introduced from \2" + prefix + "\2 denied, already exists. Closing link with " + prefix);\r return false;\r }\r Link* lnk = Utils->FindLink(servername);\r TreeServer* Node = new TreeServer(this->Utils,this->Instance,servername,description,ParentOfThis,NULL, lnk ? lnk->Hidden : false);\r ParentOfThis->AddChild(Node);\r params[3] = ":" + params[3];\r Utils->SetRemoteBursting(Node, true);\r Utils->DoOneToAllButSender(prefix,"SERVER",params,prefix);\r this->Instance->SNO->WriteToSnoMask('l',"Server \002"+prefix+"\002 introduced server \002"+servername+"\002 ("+description+")");\r return true;\r}\r\rbool TreeSocket::ComparePass(const std::string &ours, const std::string &theirs)\r{\r if ((!strncmp(ours.c_str(), "HMAC-SHA256:", 12)) || (!strncmp(theirs.c_str(), "HMAC-SHA256:", 12)))\r {\r /* One or both of us specified hmac sha256, but we don't have sha256 module loaded!\r * We can't allow this password as valid.\r */\r if (!Instance->FindModule("m_sha256.so") || !Utils->ChallengeResponse)\r return false;\r else\r /* Straight string compare of hashes */\r return ours == theirs;\r }\r else\r /* Straight string compare of plaintext */\r return ours == theirs;\r}\r\rbool TreeSocket::Outbound_Reply_Server(std::deque<std::string> ¶ms)\r{\r if (params.size() < 4)\r return false;\r\r irc::string servername = params[0].c_str();\r std::string sname = params[0];\r std::string password = params[1];\r std::string description = params[3];\r int hops = atoi(params[2].c_str());\r\r this->InboundServerName = sname;\r this->InboundDescription = description;\r\r if (!sentcapab)\r this->SendCapabilities();\r\r if (hops)\r {\r this->SendError("Server too far away for authentication");\r this->Instance->SNO->WriteToSnoMask('l',"Server connection from \2"+sname+"\2 denied, server is too far away for authentication");\r return false;\r }\r\r for (std::vector<Link>::iterator x = Utils->LinkBlocks.begin(); x < Utils->LinkBlocks.end(); x++)\r {\r if ((x->Name == servername) && ((ComparePass(this->MakePass(x->RecvPass,this->GetOurChallenge()),password)) || (x->RecvPass == password && (this->GetTheirChallenge().empty()))))\r {\r TreeServer* CheckDupe = Utils->FindServer(sname);\r if (CheckDupe)\r {\r this->SendError("Server "+sname+" already exists on server "+CheckDupe->GetParent()->GetName()+"!");\r this->Instance->SNO->WriteToSnoMask('l',"Server connection from \2"+sname+"\2 denied, already exists on server "+CheckDupe->GetParent()->GetName());\r return false;\r }\r // Begin the sync here. this kickstarts the\r // other side, waiting in WAIT_AUTH_2 state,\r // into starting their burst, as it shows\r // that we're happy.\r this->LinkState = CONNECTED;\r // we should add the details of this server now\r // to the servers tree, as a child of the root\r // node.\r TreeServer* Node = new TreeServer(this->Utils,this->Instance,sname,description,Utils->TreeRoot,this,x->Hidden);\r Utils->TreeRoot->AddChild(Node);\r params[3] = ":" + params[3];\r Utils->DoOneToAllButSender(Utils->TreeRoot->GetName(),"SERVER",params,sname);\r this->bursting = true;\r this->DoBurst(Node);\r return true;\r }\r }\r this->SendError("Invalid credentials");\r this->Instance->SNO->WriteToSnoMask('l',"Server connection from \2"+sname+"\2 denied, invalid link credentials");\r return false;\r}\r\rbool TreeSocket::Inbound_Server(std::deque<std::string> ¶ms)\r{\r if (params.size() < 4)\r return false;\r irc::string servername = params[0].c_str();\r std::string sname = params[0];\r std::string password = params[1];\r std::string description = params[3];\r int hops = atoi(params[2].c_str());\r\r this->InboundServerName = sname;\r this->InboundDescription = description;\r\r if (!sentcapab)\r this->SendCapabilities();\r\r if (hops)\r {\r this->SendError("Server too far away for authentication");\r this->Instance->SNO->WriteToSnoMask('l',"Server connection from \2"+sname+"\2 denied, server is too far away for authentication");\r return false;\r }\r\r for (std::vector<Link>::iterator x = Utils->LinkBlocks.begin(); x < Utils->LinkBlocks.end(); x++)\r {\r if ((x->Name == servername) && ((ComparePass(this->MakePass(x->RecvPass,this->GetOurChallenge()),password) || x->RecvPass == password && (this->GetTheirChallenge().empty()))))\r {\r /* First check for instances of the server that are waiting between the inbound and outbound SERVER command */\r TreeSocket* CheckDupeSocket = Utils->FindBurstingServer(sname);\r if (CheckDupeSocket)\r {\r /* If we find one, we abort the link to prevent a race condition */\r this->SendError("Negotiation collision");\r this->Instance->SNO->WriteToSnoMask('l',"Server connection from \2"+sname+"\2 denied, already exists in a negotiating state.");\r CheckDupeSocket->SendError("Negotiation collision");\r Instance->SE->DelFd(CheckDupeSocket);\r CheckDupeSocket->Close();\r delete CheckDupeSocket;\r return false;\r }\r /* Now check for fully initialized instances of the server */\r TreeServer* CheckDupe = Utils->FindServer(sname);\r if (CheckDupe)\r {\r this->SendError("Server "+sname+" already exists on server "+CheckDupe->GetParent()->GetName()+"!");\r this->Instance->SNO->WriteToSnoMask('l',"Server connection from \2"+sname+"\2 denied, already exists on server "+CheckDupe->GetParent()->GetName());\r return false;\r }\r this->Instance->SNO->WriteToSnoMask('l',"Verified incoming server connection from \002"+sname+"\002["+(x->HiddenFromStats ? "<hidden>" : this->GetIP())+"] ("+description+")");\r if (this->Hook)\r {\r std::string name = InspSocketNameRequest((Module*)Utils->Creator, this->Hook).Send();\r this->Instance->SNO->WriteToSnoMask('l',"Connection from \2"+sname+"\2["+(x->HiddenFromStats ? "<hidden>" : this->GetIP())+"] using transport \2"+name+"\2");\r }\r\r Utils->AddBurstingServer(sname,this);\r\r // this is good. Send our details: Our server name and description and hopcount of 0,\r // along with the sendpass from this block.\r this->WriteLine(std::string("SERVER ")+this->Instance->Config->ServerName+" "+this->MakePass(x->SendPass, this->GetTheirChallenge())+" 0 :"+this->Instance->Config->ServerDesc);\r // move to the next state, we are now waiting for THEM.\r this->LinkState = WAIT_AUTH_2;\r return true;\r }\r }\r this->SendError("Invalid credentials");\r this->Instance->SNO->WriteToSnoMask('l',"Server connection from \2"+sname+"\2 denied, invalid link credentials");\r return false;\r}\r\rvoid TreeSocket::Split(const std::string &line, std::deque<std::string> &n)\r{\r n.clear();\r irc::tokenstream tokens(line);\r std::string param;\r while (tokens.GetToken(param))\r {\r if (!param.empty())\r n.push_back(param);\r }\r return;\r}\r\rbool TreeSocket::ProcessLine(std::string &line)\r{\r std::deque<std::string> params;\r irc::string command;\r std::string prefix;\r\r line = line.substr(0, line.find_first_of("\r\n"));\r\r if (line.empty())\r return true;\r\r Instance->Log(DEBUG, "S[%d] <- %s", this->GetFd(), line.c_str());\r\r this->Split(line.c_str(),params);\r \r if (params.empty())\r return true;\r \r if ((params[0][0] == ':') && (params.size() > 1))\r {\r prefix = params[0].substr(1);\r params.pop_front();\r }\r command = params[0].c_str();\r params.pop_front();\r switch (this->LinkState)\r {\r TreeServer* Node;\r\r case WAIT_AUTH_1:\r // Waiting for SERVER command from remote server. Server initiating\r // the connection sends the first SERVER command, listening server\r // replies with theirs if its happy, then if the initiator is happy,\r // it starts to send its net sync, which starts the merge, otherwise\r // it sends an ERROR.\r if (command == "PASS")\r {\r /* Silently ignored */\r }\r else if (command == "SERVER")\r {\r return this->Inbound_Server(params);\r }\r else if (command == "ERROR")\r {\r return this->Error(params);\r }\r else if (command == "USER")\r {\r this->SendError("Client connections to this port are prohibited.");\r return false;\r }\r else if (command == "CAPAB")\r {\r return this->Capab(params);\r }\r else if ((command == "U") || (command == "S"))\r {\r this->SendError("Cannot use the old-style mesh linking protocol with m_spanningtree.so!");\r return false;\r }\r else\r {\r irc::string error = "Invalid command in negotiation phase: " + command;\r this->SendError(assign(error));\r return false;\r }\r break;\r case WAIT_AUTH_2:\r // Waiting for start of other side's netmerge to say they liked our\r // password.\r if (command == "SERVER")\r {\r // cant do this, they sent it to us in the WAIT_AUTH_1 state!\r // silently ignore.\r return true;\r }\r else if ((command == "U") || (command == "S"))\r {\r this->SendError("Cannot use the old-style mesh linking protocol with m_spanningtree.so!");\r return false;\r }\r else if (command == "BURST")\r {\r if (params.size() && Utils->EnableTimeSync)\r {\r bool we_have_delta = (Instance->Time(false) != Instance->Time(true));\r time_t them = atoi(params[0].c_str());\r time_t delta = them - Instance->Time(false);\r if ((delta < -300) || (delta > 300))\r {\r Instance->SNO->WriteToSnoMask('l',"\2ERROR\2: Your clocks are out by %d seconds (this is more than five minutes). Link aborted, \2PLEASE SYNC YOUR CLOCKS!\2",abs(delta));\r SendError("Your clocks are out by "+ConvToStr(abs(delta))+" seconds (this is more than five minutes). Link aborted, PLEASE SYNC YOUR CLOCKS!");\r return false;\r }\r else if ((delta < -30) || (delta > 30))\r {\r Instance->SNO->WriteToSnoMask('l',"\2WARNING\2: Your clocks are out by %d seconds. Please consider synching your clocks.", abs(delta));\r }\r\r if (!Utils->MasterTime && !we_have_delta)\r {\r this->Instance->SetTimeDelta(delta);\r // Send this new timestamp to any other servers\r Utils->DoOneToMany(Utils->TreeRoot->GetName(), "TIMESET", params);\r }\r }\r this->LinkState = CONNECTED;\r Link* lnk = Utils->FindLink(InboundServerName);\r Node = new TreeServer(this->Utils,this->Instance, InboundServerName, InboundDescription, Utils->TreeRoot, this, lnk ? lnk->Hidden : false);\r Utils->DelBurstingServer(this);\r Utils->TreeRoot->AddChild(Node);\r params.clear();\r params.push_back(InboundServerName);\r params.push_back("*");\r params.push_back("1");\r params.push_back(":"+InboundDescription);\r Utils->DoOneToAllButSender(Utils->TreeRoot->GetName(),"SERVER",params,InboundServerName);\r this->bursting = true;\r this->DoBurst(Node);\r }\r else if (command == "ERROR")\r {\r return this->Error(params);\r }\r else if (command == "CAPAB")\r {\r return this->Capab(params);\r }\r\r break;\r case LISTENER:\r this->SendError("Internal error -- listening socket accepted its own descriptor!!!");\r return false;\r break;\r case CONNECTING:\r if (command == "SERVER")\r {\r // another server we connected to, which was in WAIT_AUTH_1 state,\r // has just sent us their credentials. If we get this far, theyre\r // happy with OUR credentials, and they are now in WAIT_AUTH_2 state.\r // if we're happy with this, we should send our netburst which\r // kickstarts the merge.\r return this->Outbound_Reply_Server(params);\r }\r else if (command == "ERROR")\r {\r return this->Error(params);\r }\r else if (command == "CAPAB")\r {\r return this->Capab(params);\r }\r break;\r case CONNECTED:\r // This is the 'authenticated' state, when all passwords\r // have been exchanged and anything past this point is taken\r // as gospel.\r\r if (!prefix.empty())\r {\r std::string direction = prefix;\r userrec* t = this->Instance->FindNick(prefix);\r if (t)\r {\r direction = t->server;\r }\r TreeServer* route_back_again = Utils->BestRouteTo(direction);\r if ((!route_back_again) || (route_back_again->GetSocket() != this))\r {\r if (route_back_again)\r Instance->Log(DEBUG,"Protocol violation: Fake direction in command '%s' from connection '%s'",line.c_str(),this->GetName().c_str());\r return true;\r }\r /* Fix by brain:\r * When there is activity on the socket, reset the ping counter so\r * that we're not wasting bandwidth pinging an active server.\r */\r route_back_again->SetNextPingTime(time(NULL) + 60);\r route_back_again->SetPingFlag();\r }\r else\r {\r prefix = this->GetName();\r }\r\r if ((command == "MODE") && (params.size() >= 2))\r {\r chanrec* channel = Instance->FindChan(params[0]);\r if (channel)\r {\r userrec* x = Instance->FindNick(prefix);\r if (x)\r {\r if (warned.find(x->server) == warned.end())\r {\r Instance->Log(DEFAULT,"WARNING: I revceived modes '%s' from another server '%s'. This is not compliant with InspIRCd. Please check that server for bugs.", params[1].c_str(), x->server);\r Instance->SNO->WriteToSnoMask('d', "WARNING: The server %s is sending nonstandard modes: '%s MODE %s' where FMODE should be used, and may cause desyncs.", x->server, x->nick, params[1].c_str());\r warned[x->server] = x->nick;\r }\r }\r }\r }\r\r if (command == "SVSMODE")\r {\r /* Services expects us to implement\r * SVSMODE. In inspircd its the same as\r * MODE anyway.\r */\r command = "MODE";\r }\r std::string target;\r /* Yes, know, this is a mess. Its reasonably fast though as we're\r * working with std::string here.\r */\r if ((command == "NICK") && (params.size() >= 8))\r {\r return this->IntroduceClient(prefix,params);\r }\r else if (command == "FJOIN")\r {\r TreeServer* ServerSource = Utils->FindServer(prefix);\r if (ServerSource)\r Utils->SetRemoteBursting(ServerSource, false);\r return this->ForceJoin(prefix,params);\r }\r else if (command == "STATS")\r {\r return this->Stats(prefix, params);\r }\r else if (command == "MOTD")\r {\r return this->Motd(prefix, params);\r }\r else if (command == "KILL" && Utils->IsServer(prefix))\r {\r return this->RemoteKill(prefix,params);\r }\r else if (command == "MODULES")\r {\r return this->Modules(prefix, params);\r }\r else if (command == "ADMIN")\r {\r return this->Admin(prefix, params);\r }\r else if (command == "SERVER")\r {\r return this->RemoteServer(prefix,params);\r }\r else if (command == "ERROR")\r {\r return this->Error(params);\r }\r else if (command == "OPERTYPE")\r {\r return this->OperType(prefix,params);\r }\r else if (command == "FMODE")\r {\r TreeServer* ServerSource = Utils->FindServer(prefix);\r if (ServerSource)\r Utils->SetRemoteBursting(ServerSource, false);\r return this->ForceMode(prefix,params);\r }\r else if (command == "FTOPIC")\r {\r return this->ForceTopic(prefix,params);\r }\r else if (command == "REHASH")\r {\r return this->RemoteRehash(prefix,params);\r }\r else if (command == "METADATA")\r {\r return this->MetaData(prefix,params);\r }\r else if (command == "REMSTATUS")\r {\r return this->RemoveStatus(prefix,params);\r }\r else if (command == "PING")\r {\r if (prefix.empty())\r prefix = this->GetName();\r /*\r * We just got a ping from a server that's bursting.\r * This can't be right, so set them to not bursting, and\r * apply their lines.\r */\r TreeServer* ServerSource = Utils->FindServer(prefix);\r if (ServerSource)\r Utils->SetRemoteBursting(ServerSource, false);\r\r if (this->bursting)\r {\r this->bursting = false;\r Instance->XLines->apply_lines(Utils->lines_to_apply);\r Utils->lines_to_apply = 0;\r }\r\r return this->LocalPing(prefix,params);\r }\r else if (command == "PONG")\r {\r if (prefix.empty())\r prefix = this->GetName();\r /*\r * We just got a pong from a server that's bursting.\r * This can't be right, so set them to not bursting, and\r * apply their lines.\r */\r TreeServer* ServerSource = Utils->FindServer(prefix);\r if (ServerSource)\r Utils->SetRemoteBursting(ServerSource, false);\r\r if (this->bursting)\r {\r this->bursting = false;\r Instance->XLines->apply_lines(Utils->lines_to_apply);\r Utils->lines_to_apply = 0;\r }\r\r return this->LocalPong(prefix,params);\r }\r else if (command == "VERSION")\r {\r return this->ServerVersion(prefix,params);\r }\r else if (command == "FHOST")\r {\r return this->ChangeHost(prefix,params);\r }\r else if (command == "FNAME")\r {\r return this->ChangeName(prefix,params);\r }\r else if (command == "ADDLINE")\r {\r TreeServer* ServerSource = Utils->FindServer(prefix);\r if (ServerSource)\r Utils->SetRemoteBursting(ServerSource, false);\r return this->AddLine(prefix,params);\r }\r else if (command == "SVSNICK")\r {\r if (prefix.empty())\r {\r prefix = this->GetName();\r }\r return this->ForceNick(prefix,params);\r }\r else if (command == "OPERQUIT")\r {\r return this->OperQuit(prefix,params);\r }\r else if (command == "IDLE")\r {\r return this->Whois(prefix,params);\r }\r else if (command == "PUSH")\r {\r return this->Push(prefix,params);\r }\r else if (command == "TIMESET")\r {\r return this->HandleSetTime(prefix, params);\r }\r else if (command == "TIME")\r {\r return this->Time(prefix,params);\r }\r else if ((command == "KICK") && (Utils->IsServer(prefix)))\r {\r std::string sourceserv = this->myhost;\r if (params.size() == 3)\r {\r userrec* user = this->Instance->FindNick(params[1]);\r chanrec* chan = this->Instance->FindChan(params[0]);\r if (user && chan)\r {\r if (!chan->ServerKickUser(user, params[2].c_str(), false))\r /* Yikes, the channels gone! */\r delete chan;\r }\r }\r if (!this->InboundServerName.empty())\r {\r sourceserv = this->InboundServerName;\r }\r return Utils->DoOneToAllButSenderRaw(line,sourceserv,prefix,command,params);\r }\r else if (command == "SVSJOIN")\r {\r if (prefix.empty())\r {\r prefix = this->GetName();\r }\r return this->ServiceJoin(prefix,params);\r }\r else if (command == "SQUIT")\r {\r if (params.size() == 2)\r {\r this->Squit(Utils->FindServer(params[0]),params[1]);\r }\r return true;\r }\r else if (command == "OPERNOTICE")\r {\r std::string sourceserv = this->myhost;\r if (!this->InboundServerName.empty())\r sourceserv = this->InboundServerName;\r if (params.size() >= 1)\r Instance->WriteOpers("*** From " + sourceserv + ": " + params[0]);\r return Utils->DoOneToAllButSenderRaw(line, sourceserv, prefix, command, params);\r }\r else if (command == "MODENOTICE")\r {\r std::string sourceserv = this->myhost;\r if (!this->InboundServerName.empty())\r sourceserv = this->InboundServerName;\r if (params.size() >= 2)\r {\r Instance->WriteMode(params[0].c_str(), WM_AND, "*** From %s: %s", sourceserv.c_str(), params[1].c_str());\r }\r return Utils->DoOneToAllButSenderRaw(line, sourceserv, prefix, command, params);\r }\r else if (command == "SNONOTICE")\r {\r std::string sourceserv = this->myhost;\r if (!this->InboundServerName.empty())\r sourceserv = this->InboundServerName;\r if (params.size() >= 2)\r {\r Instance->SNO->WriteToSnoMask(*(params[0].c_str()), "From " + sourceserv + ": "+ params[1]);\r }\r return Utils->DoOneToAllButSenderRaw(line, sourceserv, prefix, command, params);\r }\r else if (command == "ENDBURST")\r {\r this->bursting = false;\r Instance->XLines->apply_lines(Utils->lines_to_apply);\r Utils->lines_to_apply = 0;\r std::string sourceserv = this->myhost;\r if (!this->InboundServerName.empty())\r sourceserv = this->InboundServerName;\r this->Instance->SNO->WriteToSnoMask('l',"Received end of netburst from \2%s\2",sourceserv.c_str());\r\r Event rmode((char*)sourceserv.c_str(), (Module*)Utils->Creator, "new_server");\r rmode.Send(Instance);\r\r return true;\r }\r else\r {\r // not a special inter-server command.\r // Emulate the actual user doing the command,\r // this saves us having a huge ugly parser.\r userrec* who = this->Instance->FindNick(prefix);\r std::string sourceserv = this->myhost;\r if (!this->InboundServerName.empty())\r {\r sourceserv = this->InboundServerName;\r }\r if ((!who) && (command == "MODE"))\r {\r if (Utils->IsServer(prefix))\r {\r const char* modelist[127];\r for (size_t i = 0; i < params.size(); i++)\r modelist[i] = params[i].c_str();\r userrec* fake = new userrec(Instance);\r fake->SetFd(FD_MAGIC_NUMBER);\r this->Instance->SendMode(modelist, params.size(), fake);\r\r delete fake;\r /* Hot potato! pass it on! */\r return Utils->DoOneToAllButSenderRaw(line,sourceserv,prefix,command,params);\r }\r }\r if (who)\r {\r if ((command == "NICK") && (params.size() > 0))\r {\r /* On nick messages, check that the nick doesnt\r * already exist here. If it does, kill their copy,\r * and our copy.\r */\r userrec* x = this->Instance->FindNick(params[0]);\r if ((x) && (x != who))\r {\r std::deque<std::string> p;\r p.push_back(params[0]);\r p.push_back("Nickname collision ("+prefix+" -> "+params[0]+")");\r Utils->DoOneToMany(this->Instance->Config->ServerName,"KILL",p);\r p.clear();\r p.push_back(prefix);\r p.push_back("Nickname collision");\r Utils->DoOneToMany(this->Instance->Config->ServerName,"KILL",p);\r userrec::QuitUser(this->Instance,x,"Nickname collision ("+prefix+" -> "+params[0]+")");\r userrec* y = this->Instance->FindNick(prefix);\r if (y)\r {\r userrec::QuitUser(this->Instance,y,"Nickname collision");\r }\r return Utils->DoOneToAllButSenderRaw(line,sourceserv,prefix,command,params);\r }\r }\r // its a user\r target = who->server;\r const char* strparams[127];\r for (unsigned int q = 0; q < params.size(); q++)\r {\r strparams[q] = params[q].c_str();\r }\r switch (this->Instance->CallCommandHandler(command.c_str(), strparams, params.size(), who))\r {\r case CMD_INVALID:\r this->SendError("Unrecognised command '"+std::string(command.c_str())+"' -- possibly loaded mismatched modules");\r return false;\r break;\r case CMD_FAILURE:\r return true;\r break;\r default:\r /* CMD_SUCCESS and CMD_USER_DELETED fall through here */\r break;\r }\r }\r else\r {\r // its not a user. Its either a server, or somethings screwed up.\r if (Utils->IsServer(prefix))\r target = this->Instance->Config->ServerName;\r else\r return true;\r }\r return Utils->DoOneToAllButSenderRaw(line,sourceserv,prefix,command,params);\r\r }\r return true;\r break;\r }\r return true;\r}\r\rstd::string TreeSocket::GetName()\r{\r std::string sourceserv = this->myhost;\r if (!this->InboundServerName.empty())\r {\r sourceserv = this->InboundServerName;\r }\r return sourceserv;\r}\r\rvoid TreeSocket::OnTimeout()\r{\r if (this->LinkState == CONNECTING)\r {\r this->Instance->SNO->WriteToSnoMask('l',"CONNECT: Connection to \002"+myhost+"\002 timed out.");\r Link* MyLink = Utils->FindLink(myhost);\r if (MyLink)\r Utils->DoFailOver(MyLink);\r }\r}\r\rvoid TreeSocket::OnClose()\r{\r // Connection closed.\r // If the connection is fully up (state CONNECTED)\r // then propogate a netsplit to all peers.\r std::string quitserver = this->myhost;\r if (!this->InboundServerName.empty())\r {\r quitserver = this->InboundServerName;\r }\r TreeServer* s = Utils->FindServer(quitserver);\r if (s)\r {\r Squit(s,"Remote host closed the connection");\r }\r\r if (!quitserver.empty())\r {\r this->Instance->SNO->WriteToSnoMask('l',"Connection to '\2%s\2' failed.",quitserver.c_str());\r time_t server_uptime = Instance->Time() - this->age; \r if (server_uptime)\r Instance->SNO->WriteToSnoMask('l',"Connection to '\2%s\2' was established for %s", quitserver.c_str(), Utils->Creator->TimeToStr(server_uptime).c_str());\r }\r}\r\rint TreeSocket::OnIncomingConnection(int newsock, char* ip)\r{\r /* To prevent anyone from attempting to flood opers/DDoS by connecting to the server port,\r * or discovering if this port is the server port, we don't allow connections from any\r * IPs for which we don't have a link block.\r */\r bool found = false;\r\r found = (std::find(Utils->ValidIPs.begin(), Utils->ValidIPs.end(), ip) != Utils->ValidIPs.end());\r if (!found)\r {\r for (vector<std::string>::iterator i = Utils->ValidIPs.begin(); i != Utils->ValidIPs.end(); i++)\r if (irc::sockets::MatchCIDR(ip, (*i).c_str()))\r found = true;\r\r if (!found)\r {\r this->Instance->SNO->WriteToSnoMask('l',"Server connection from %s denied (no link blocks with that IP address)", ip);\r close(newsock);\r return false;\r }\r }\r\r TreeSocket* s = new TreeSocket(this->Utils, this->Instance, newsock, ip, this->Hook);\r s = s; /* Whinge whinge whinge, thats all GCC ever does. */\r return true;\r}\r
\ No newline at end of file
+/* +------------------------------------+
+ * | Inspire Internet Relay Chat Daemon |
+ * +------------------------------------+
+ *
+ * InspIRCd: (C) 2002-2008 InspIRCd Development Team
+ * See: http://www.inspircd.org/wiki/index.php/Credits
+ *
+ * This program is free but copyrighted software; see
+ * the file COPYING for details.
+ *
+ * ---------------------------------------------------
+ */
+
+#include "inspircd.h"
+#include "commands/cmd_whois.h"
+#include "commands/cmd_stats.h"
+#include "socket.h"
+#include "wildcard.h"
+#include "xline.h"
+#include "transport.h"
+#include "socketengine.h"
+
+#include "m_spanningtree/main.h"
+#include "m_spanningtree/utils.h"
+#include "m_spanningtree/treeserver.h"
+#include "m_spanningtree/link.h"
+#include "m_spanningtree/treesocket.h"
+#include "m_spanningtree/resolvers.h"
+#include "m_spanningtree/handshaketimer.h"
+
+/* $ModDep: m_spanningtree/timesynctimer.h m_spanningtree/resolvers.h m_spanningtree/main.h m_spanningtree/utils.h m_spanningtree/treeserver.h m_spanningtree/link.h m_spanningtree/treesocket.h */
+
+void TreeSocket::WriteLine(std::string line)
+{
+ Instance->Logs->Log("m_spanningtree",DEBUG, "S[%d] O %s", this->GetFd(), line.c_str());
+ line.append("\r\n");
+ this->Write(line);
+}
+
+
+/* Handle ERROR command */
+bool TreeSocket::Error(std::deque<std::string> ¶ms)
+{
+ if (params.size() < 1)
+ return false;
+ this->Instance->SNO->WriteToSnoMask('l',"ERROR from %s: %s",(!InboundServerName.empty() ? InboundServerName.c_str() : myhost.c_str()),params[0].c_str());
+ /* we will return false to cause the socket to close. */
+ return false;
+}
+
+void TreeSocket::Split(const std::string &line, std::deque<std::string> &n)
+{
+ n.clear();
+ irc::tokenstream tokens(line);
+ std::string param;
+ while (tokens.GetToken(param))
+ {
+ n.push_back(param);
+ }
+ return;
+}
+
+bool TreeSocket::ProcessLine(std::string &line)
+{
+ std::deque<std::string> params;
+ irc::string command;
+ std::string prefix;
+
+ line = line.substr(0, line.find_first_of("\r\n"));
+
+ if (line.empty())
+ return true;
+
+ Instance->Logs->Log("m_spanningtree",DEBUG, "S[%d] I %s", this->GetFd(), line.c_str());
+
+ this->Split(line.c_str(),params);
+
+ if (params.empty())
+ return true;
+
+ if ((params[0][0] == ':') && (params.size() > 1))
+ {
+ prefix = params[0].substr(1);
+ params.pop_front();
+
+ if (prefix.empty())
+ {
+ this->SendError("BUG (?) Empty prefix recieved.");
+ return false;
+ }
+ }
+
+ command = params[0].c_str();
+ params.pop_front();
+
+ switch (this->LinkState)
+ {
+ TreeServer* Node;
+
+ case WAIT_AUTH_1:
+ /*
+ * State WAIT_AUTH_1:
+ * Waiting for SERVER command from remote server. Server initiating
+ * the connection sends the first SERVER command, listening server
+ * replies with theirs if its happy, then if the initiator is happy,
+ * it starts to send its net sync, which starts the merge, otherwise
+ * it sends an ERROR.
+ */
+ if (command == "PASS")
+ {
+ /*
+ * Ignore this silently. Some services packages insist on sending PASS, even
+ * when it is not required (i.e. by us). We have to ignore this here, otherwise
+ * as it's an unknown command (effectively), it will cause the connection to be
+ * closed, which probably isn't what people want. -- w00t
+ */
+ }
+ else if (command == "SERVER")
+ {
+ return this->Inbound_Server(params);
+ }
+ else if (command == "ERROR")
+ {
+ return this->Error(params);
+ }
+ else if (command == "USER")
+ {
+ this->SendError("Client connections to this port are prohibited.");
+ return false;
+ }
+ else if (command == "CAPAB")
+ {
+ return this->Capab(params);
+ }
+ else
+ {
+ // XXX ...wtf.
+ irc::string error = "Invalid command in negotiation phase: " + command;
+ this->SendError(assign(error));
+ return false;
+ }
+ break;
+ case WAIT_AUTH_2:
+ /*
+ * State WAIT_AUTH_2:
+ * We have sent SERVER to the other side of the connection. Now we're waiting for them to start BURST.
+ * The other option at this stage of things, of course, is for them to close our connection thanks
+ * to invalid credentials.. -- w
+ */
+ if (command == "SERVER")
+ {
+ /*
+ * Connection is either attempting to re-auth itself (stupid) or sending netburst without sending BURST.
+ * Both of these aren't allowable, so block them here. -- w
+ */
+ this->SendError("You may not re-authenticate or commence netburst without sending BURST.");
+ return true;
+ }
+ else if (command == "BURST")
+ {
+ if (params.size())
+ {
+ time_t them = atoi(params[0].c_str());
+ time_t delta = them - Instance->Time();
+ if ((delta < -600) || (delta > 600))
+ {
+ Instance->SNO->WriteToSnoMask('l',"\2ERROR\2: Your clocks are out by %d seconds (this is more than five minutes). Link aborted, \2PLEASE SYNC YOUR CLOCKS!\2",abs(delta));
+ SendError("Your clocks are out by "+ConvToStr(abs(delta))+" seconds (this is more than five minutes). Link aborted, PLEASE SYNC YOUR CLOCKS!");
+ return false;
+ }
+ else if ((delta < -30) || (delta > 30))
+ {
+ Instance->SNO->WriteToSnoMask('l',"\2WARNING\2: Your clocks are out by %d seconds. Please consider synching your clocks.", abs(delta));
+ }
+ }
+ this->LinkState = CONNECTED;
+ Link* lnk = Utils->FindLink(InboundServerName);
+
+ Node = new TreeServer(this->Utils, this->Instance, InboundServerName, InboundDescription, InboundSID, Utils->TreeRoot, this, lnk ? lnk->Hidden : false);
+
+ if (Node->DuplicateID())
+ {
+ this->SendError("Server ID "+InboundSID+" already exists on the network!");
+ this->Instance->SNO->WriteToSnoMask('l',"Server \2"+InboundServerName+"\2 being introduced from \2" + prefix + "\2 denied, server ID already exists on the network. Closing link.");
+ return false;
+ }
+
+ Utils->TreeRoot->AddChild(Node);
+ params.clear();
+ params.push_back(InboundServerName);
+ params.push_back("*");
+ params.push_back("1");
+ params.push_back(InboundSID);
+ params.push_back(":"+InboundDescription);
+ Utils->DoOneToAllButSender(Instance->Config->GetSID(),"SERVER",params,InboundServerName);
+ Node->bursting = true;
+ this->DoBurst(Node);
+ }
+ else if (command == "ERROR")
+ {
+ return this->Error(params);
+ }
+ else if (command == "CAPAB")
+ {
+ return this->Capab(params);
+ }
+
+ break;
+ case LISTENER:
+ /*
+ * This really shouldn't happen.
+ */
+ this->SendError("Internal error -- listening socket accepted its own descriptor!!!");
+ return false;
+ break;
+ case CONNECTING:
+ /*
+ * State CONNECTING:
+ * We're connecting (OUTGOING) to another server. They are in state WAIT_AUTH_1 until they verify
+ * our credentials, when they proceed into WAIT_AUTH_2 and send SERVER to us. We then send BURST
+ * + our netburst, which will put them into CONNECTED state. -- w
+ */
+ if (command == "SERVER")
+ {
+ // Our credentials have been accepted, send netburst. (this puts US into the CONNECTED state)
+ return this->Outbound_Reply_Server(params);
+ }
+ else if (command == "ERROR")
+ {
+ return this->Error(params);
+ }
+ else if (command == "CAPAB")
+ {
+ return this->Capab(params);
+ }
+ break;
+ case CONNECTED:
+ /*
+ * State CONNECTED:
+ * Credentials have been exchanged, we've gotten their 'BURST' (or sent ours).
+ * Anything from here on should be accepted a little more reasonably.
+ */
+ if (!prefix.empty())
+ {
+ /*
+ * Check for fake direction here, and drop any instances that are found.
+ * What is fake direction? Imagine the following server setup:
+ * 0AA <-> 0AB <-> 0AC
+ * Fake direction would be 0AC sending a message to 0AB claiming to be from
+ * 0AA, or something similar. Basically, a message taking a path that *cannot*
+ * be correct.
+ *
+ * When would this be seen?
+ * Well, hopefully never. It could be caused by race conditions, bugs, or
+ * "miscreant" servers, though, so let's check anyway. -- w
+ */
+ std::string direction = prefix;
+
+ User *t = this->Instance->FindUUID(prefix);
+ if (t)
+ {
+ direction = t->server;
+ }
+
+ TreeServer* route_back_again = Utils->BestRouteTo(direction);
+ if ((!route_back_again) || (route_back_again->GetSocket() != this))
+ {
+ if (route_back_again)
+ Instance->Logs->Log("m_spanningtree",DEBUG,"Protocol violation: Fake direction in command '%s' from connection '%s'",line.c_str(),this->GetName().c_str());
+ return true;
+ }
+ /* Fix by brain:
+ * When there is activity on the socket, reset the ping counter so
+ * that we're not wasting bandwidth pinging an active server.
+ */
+ route_back_again->SetNextPingTime(Instance->Time() + Utils->PingFreq);
+ route_back_again->SetPingFlag();
+ }
+ else
+ {
+ /*
+ * Empty prefix from a server to server link:
+ * This is somewhat bad/naughty, so let's set the prefix
+ * to be the link that we got it from, so we don't break anything. -- w
+ */
+ TreeServer* n = Utils->FindServer(GetName());
+ if (n)
+ prefix = n->GetID();
+ else
+ prefix = GetName();
+ }
+
+ /*
+ * First up, check for any malformed commands (e.g. MODE without a timestamp)
+ * and rewrite commands where necessary (SVSMODE -> MODE for services). -- w
+ */
+ if (command == "SVSMODE") // This isn't in an "else if" so we still force FMODE for changes on channels.
+ command = "MODE";
+
+ if (command == "MODE")
+ {
+ if (params.size() >= 2)
+ {
+ Channel* channel = Instance->FindChan(params[0]);
+ if (channel)
+ {
+ this->SendError("MODE may no longer be used on channels. Please use FMODE, with correct timestamp rules.");
+ return false;
+ }
+ }
+ }
+
+
+ /*
+ * Now, check for (and parse) commands as appropriate. -- w
+ */
+
+ /* Find the server that this command originated from, used in the handlers below */
+ TreeServer *ServerSource = Utils->FindServer(prefix);
+
+ /* Find the link we just got this from so we don't bounce it back incorrectly */
+ std::string sourceserv = this->myhost;
+ if (!this->InboundServerName.empty())
+ {
+ sourceserv = this->InboundServerName;
+ }
+
+ /*
+ * XXX one of these days, this needs to be moved into class Commands.
+ */
+ if (command == "UID")
+ {
+ return this->ParseUID(prefix, params);
+ }
+ else if (command == "FJOIN")
+ {
+ return this->ForceJoin(prefix,params);
+ }
+ else if ((command == "NOTICE" || command == "PRIVMSG") && (Utils->IsServer(prefix)))
+ {
+ return this->ServerMessage(assign(command), prefix, params, sourceserv);
+ }
+ else if (command == "STATS")
+ {
+ return this->Stats(prefix, params);
+ }
+ else if (command == "MOTD")
+ {
+ return this->Motd(prefix, params);
+ }
+ else if (command == "KILL" && ServerSource)
+ {
+ // Kill from a server
+ return this->RemoteKill(prefix,params);
+ }
+ else if (command == "MODULES")
+ {
+ return this->Modules(prefix, params);
+ }
+ else if (command == "ADMIN")
+ {
+ return this->Admin(prefix, params);
+ }
+ else if (command == "MAP")
+ {
+ User* user = Instance->FindNick(prefix);
+ if (user)
+ {
+ const char* ptrs[127];
+ for (size_t n = 0; (n < params.size()) && (n < 127); ++n)
+ ptrs[n] = params[n].c_str();
+ return Utils->Creator->HandleMap(ptrs, params.size(), user);
+ }
+ }
+ else if (command == "SERVER")
+ {
+ return this->RemoteServer(prefix,params);
+ }
+ else if (command == "ERROR")
+ {
+ return this->Error(params);
+ }
+ else if (command == "OPERTYPE")
+ {
+ return this->OperType(prefix,params);
+ }
+ else if (command == "FMODE")
+ {
+ return this->ForceMode(prefix,params);
+ }
+ else if (command == "FTOPIC")
+ {
+ return this->ForceTopic(prefix,params);
+ }
+ else if (command == "REHASH")
+ {
+ return this->RemoteRehash(prefix,params);
+ }
+ else if (command == "METADATA")
+ {
+ return this->MetaData(prefix,params);
+ }
+ else if (command == "PING")
+ {
+ return this->LocalPing(prefix,params);
+ }
+ else if (command == "PONG")
+ {
+ return this->LocalPong(prefix,params);
+ }
+ else if (command == "VERSION")
+ {
+ return this->ServerVersion(prefix,params);
+ }
+ else if (command == "FHOST")
+ {
+ return this->ChangeHost(prefix,params);
+ }
+ else if (command == "FNAME")
+ {
+ return this->ChangeName(prefix,params);
+ }
+ else if (command == "ADDLINE")
+ {
+ return this->AddLine(prefix,params);
+ }
+ else if (command == "DELLINE")
+ {
+ return this->DelLine(prefix,params);
+ }
+ else if (command == "SVSNICK")
+ {
+ return this->ForceNick(prefix,params);
+ }
+ else if (command == "OPERQUIT")
+ {
+ return this->OperQuit(prefix,params);
+ }
+ else if (command == "IDLE")
+ {
+ return this->Whois(prefix,params);
+ }
+ else if (command == "PUSH")
+ {
+ return this->Push(prefix,params);
+ }
+ else if (command == "TIME")
+ {
+ return this->Time(prefix,params);
+ }
+ else if ((command == "KICK") && (Utils->IsServer(prefix)))
+ {
+ if (params.size() == 3)
+ {
+ User* user = this->Instance->FindNick(params[1]);
+ Channel* chan = this->Instance->FindChan(params[0]);
+ if (user && chan)
+ {
+ if (!chan->ServerKickUser(user, params[2].c_str(), false))
+ /* Yikes, the channels gone! */
+ delete chan;
+ }
+ }
+
+ return Utils->DoOneToAllButSenderRaw(line,sourceserv,prefix,command,params);
+ }
+ else if (command == "SVSJOIN")
+ {
+ return this->ServiceJoin(prefix,params);
+ }
+ else if (command == "SVSPART")
+ {
+ return this->ServicePart(prefix,params);
+ }
+ else if (command == "SQUIT")
+ {
+ if (params.size() == 2)
+ {
+ this->Squit(Utils->FindServer(params[0]),params[1]);
+ }
+ return true;
+ }
+ else if (command == "OPERNOTICE")
+ {
+ if (params.size() >= 1)
+ Instance->SNO->WriteToSnoMask('A', "From " + (ServerSource ? ServerSource->GetName().c_str() : prefix) + ": " + params[0]);
+ return Utils->DoOneToAllButSenderRaw(line, sourceserv, prefix, command, params);
+ }
+ else if (command == "MODENOTICE")
+ {
+ if (params.size() >= 2)
+ {
+ if (ServerSource)
+ Instance->Users->WriteMode(params[0].c_str(), WM_AND, "*** From %s: %s", (ServerSource ? ServerSource->GetName().c_str() : prefix.c_str()), params[1].c_str());
+ }
+ return Utils->DoOneToAllButSenderRaw(line, sourceserv, prefix, command, params);
+ }
+ else if (command == "SNONOTICE")
+ {
+ if (params.size() >= 2)
+ {
+ Instance->SNO->WriteToSnoMask(*(params[0].c_str()), "From " + (ServerSource ? ServerSource->GetName().c_str() : prefix) + ": "+ params[1]);
+ }
+ return Utils->DoOneToAllButSenderRaw(line, sourceserv, prefix, command, params);
+ }
+ else if (command == "BURST")
+ {
+ // Set prefix server as bursting
+ if (!ServerSource)
+ {
+ this->Instance->SNO->WriteToSnoMask('l', "WTF: Got BURST from a nonexistant server(?): %s", (ServerSource ? ServerSource->GetName().c_str() : prefix.c_str()));
+ return false;
+ }
+
+ ServerSource->bursting = true;
+ return Utils->DoOneToAllButSenderRaw(line, sourceserv, prefix, command, params);
+ }
+ else if (command == "ENDBURST")
+ {
+ if (!ServerSource)
+ {
+ this->Instance->SNO->WriteToSnoMask('l', "WTF: Got ENDBURST from a nonexistant server(?): %s", (ServerSource ? ServerSource->GetName().c_str() : prefix.c_str()));
+ return false;
+ }
+
+ ServerSource->FinishBurst();
+ return Utils->DoOneToAllButSenderRaw(line, sourceserv, prefix, command, params);
+ }
+ else if (command == "ENCAP")
+ {
+ return this->Encap(prefix, params);
+ }
+ else if (command == "MODE")
+ {
+ // Server-prefix MODE.
+ const char* modelist[MAXPARAMETERS];
+ for (size_t i = 0; i < params.size(); i++)
+ modelist[i] = params[i].c_str();
+
+ /* We don't support this for channel mode changes any more! */
+ if (params.size() >= 1)
+ {
+ if (Instance->FindChan(params[0]))
+ {
+ this->SendError("Protocol violation by '"+(ServerSource ? ServerSource->GetName().c_str() : prefix)+"'! MODE for channel mode changes is not supported by the InspIRCd 1.2 protocol. You must use FMODE to preserve channel timestamps.");
+ return false;
+ }
+ }
+
+ // Insert into the parser
+ this->Instance->SendMode(modelist, params.size(), this->Instance->FakeClient);
+
+ // Pass out to the network
+ return Utils->DoOneToAllButSenderRaw(line,sourceserv,prefix,command,params);
+ }
+ else
+ {
+ /*
+ * Not a special s2s command. Emulate the user doing it.
+ * This saves us having a huge ugly command parser again.
+ */
+ User *who = this->Instance->FindUUID(prefix);
+
+ if (!who)
+ {
+ // this looks ugly because command is an irc::string
+ this->SendError("Command (" + std::string(command.c_str()) + ") from unknown prefix (" + prefix + ")! Dropping link.");
+ return false;
+ }
+
+ if (command == "NICK")
+ {
+ if (params.size() != 2)
+ {
+ SendError("Protocol violation: NICK message without TS - :"+std::string(who->uuid)+" NICK "+params[0]);
+ return false;
+ }
+ /* Update timestamp on user when they change nicks */
+ who->age = atoi(params[1].c_str());
+
+ /*
+ * On nick messages, check that the nick doesnt already exist here.
+ * If it does, perform collision logic.
+ */
+ User* x = this->Instance->FindNickOnly(params[0]);
+ if ((x) && (x != who))
+ {
+ int collideret = 0;
+ /* x is local, who is remote */
+ collideret = this->DoCollision(x, who->age, who->ident, who->GetIPString(), who->uuid);
+ if (collideret != 1)
+ {
+ /*
+ * Remote client lost, or both lost, parsing this nickchange would be
+ * pointless, as the incoming client's server will soon recieve SVSNICK to
+ * change its nick to its UID. :) -- w00t
+ */
+ return true;
+ }
+ }
+ }
+
+ // its a user
+ const char* strparams[127];
+ for (unsigned int q = 0; q < params.size(); q++)
+ {
+ strparams[q] = params[q].c_str();
+ }
+
+ switch (this->Instance->CallCommandHandler(command.c_str(), strparams, params.size(), who))
+ {
+ case CMD_INVALID:
+ // command is irc::string, hence ugliness
+ this->SendError("Unrecognised or malformed command '" + std::string(command.c_str()) + "' -- possibly loaded mismatched modules");
+ return false;
+ break;
+ /*
+ * CMD_LOCALONLY is aliased to CMD_FAILURE, so this won't go out onto the network.
+ */
+ case CMD_FAILURE:
+ return true;
+ break;
+ default:
+ /* CMD_SUCCESS and CMD_USER_DELETED fall through here */
+ break;
+ }
+
+ return Utils->DoOneToAllButSenderRaw(line,sourceserv,prefix,command,params);
+
+ }
+ return true;
+ break; // end of state CONNECTED (phew).
+ }
+ return true;
+}
+
+std::string TreeSocket::GetName()
+{
+ std::string sourceserv = this->myhost;
+ if (!this->InboundServerName.empty())
+ {
+ sourceserv = this->InboundServerName;
+ }
+ return sourceserv;
+}
+
+void TreeSocket::OnTimeout()
+{
+ if (this->LinkState == CONNECTING)
+ {
+ Utils->Creator->RemoteMessage(NULL, "CONNECT: Connection to \002%s\002 timed out.", myhost.c_str());
+ Link* MyLink = Utils->FindLink(myhost);
+ if (MyLink)
+ Utils->DoFailOver(MyLink);
+ }
+}
+
+void TreeSocket::OnClose()
+{
+ // Test fix for big fuckup
+ if (this->LinkState != CONNECTED)
+ return;
+
+ // Connection closed.
+ // If the connection is fully up (state CONNECTED)
+ // then propogate a netsplit to all peers.
+ std::string quitserver = this->myhost;
+ if (!this->InboundServerName.empty())
+ {
+ quitserver = this->InboundServerName;
+ }
+ TreeServer* s = Utils->FindServer(quitserver);
+ if (s)
+ {
+ Squit(s,"Remote host closed the connection");
+ }
+
+ if (!quitserver.empty())
+ {
+ Utils->Creator->RemoteMessage(NULL,"Connection to '\2%s\2' failed.",quitserver.c_str());
+ time_t server_uptime = Instance->Time() - this->age;
+ if (server_uptime)
+ Utils->Creator->RemoteMessage(NULL,"Connection to '\2%s\2' was established for %s", quitserver.c_str(), Utils->Creator->TimeToStr(server_uptime).c_str());
+ }
+}
+
+int TreeSocket::OnIncomingConnection(int newsock, char* ip)
+{
+ /* To prevent anyone from attempting to flood opers/DDoS by connecting to the server port,
+ * or discovering if this port is the server port, we don't allow connections from any
+ * IPs for which we don't have a link block.
+ */
+ bool found = false;
+
+ found = (std::find(Utils->ValidIPs.begin(), Utils->ValidIPs.end(), ip) != Utils->ValidIPs.end());
+ if (!found)
+ {
+ for (std::vector<std::string>::iterator i = Utils->ValidIPs.begin(); i != Utils->ValidIPs.end(); i++)
+ if (irc::sockets::MatchCIDR(ip, (*i).c_str()))
+ found = true;
+
+ if (!found)
+ {
+ Utils->Creator->RemoteMessage(NULL,"Server connection from %s denied (no link blocks with that IP address)", ip);
+ Instance->SE->Close(newsock);
+ return false;
+ }
+ }
+
+ TreeSocket* s = new TreeSocket(this->Utils, this->Instance, newsock, ip, this->Hook);
+ s = s; /* Whinge whinge whinge, thats all GCC ever does. */
+ return true;
+}
projects / user / henk / code / inspircd.git / blobdiff