-/* +------------------------------------+
- * | Inspire Internet Relay Chat Daemon |
- * +------------------------------------+
- *
- * InspIRCd: (C) 2002-2007 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 "configreader.h"
-#include "users.h"
-#include "channels.h"
-#include "modules.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 */
-
-static std::map<std::string, std::string> warned; /* Server names that have had protocol violation warnings displayed for them */
-
-int TreeSocket::WriteLine(std::string line)
-{
- Instance->Log(DEBUG, "S[%d] -> %s", this->GetFd(), line.c_str());
- line.append("\r\n");
- return 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;
-}
-
-bool TreeSocket::Modules(const std::string &prefix, std::deque<std::string> ¶ms)
-{
- if (params.empty())
- return true;
-
- if (!this->Instance->MatchText(this->Instance->Config->ServerName, params[0]))
- {
- /* Pass it on, not for us */
- Utils->DoOneToOne(prefix, "MODULES", params, params[0]);
- return true;
- }
-
- char strbuf[MAXBUF];
- std::deque<std::string> par;
- par.push_back(prefix);
- par.push_back("");
-
- userrec* source = this->Instance->FindNick(prefix);
- if (!source)
- return true;
-
- for (unsigned int i = 0; i < Instance->Config->module_names.size(); i++)
- {
- Version V = Instance->modules[i]->GetVersion();
- char modulename[MAXBUF];
- char flagstate[MAXBUF];
- *flagstate = 0;
- if (V.Flags & VF_STATIC)
- strlcat(flagstate,", static",MAXBUF);
- if (V.Flags & VF_VENDOR)
- strlcat(flagstate,", vendor",MAXBUF);
- if (V.Flags & VF_COMMON)
- strlcat(flagstate,", common",MAXBUF);
- if (V.Flags & VF_SERVICEPROVIDER)
- strlcat(flagstate,", service provider",MAXBUF);
- if (!flagstate[0])
- strcpy(flagstate," <no flags>");
- strlcpy(modulename,Instance->Config->module_names[i].c_str(),256);
- if (*source->oper)
- {
- 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);
- }
- else
- {
- snprintf(strbuf, MAXBUF, "::%s 900 %s :%s",Instance->Config->ServerName,source->nick,ServerConfig::CleanFilename(modulename));
- }
- par[1] = strbuf;
- Utils->DoOneToOne(Instance->Config->ServerName, "PUSH", par, source->server);
- }
- snprintf(strbuf, MAXBUF, "::%s 901 %s :End of MODULES list", Instance->Config->ServerName, source->nick);
- par[1] = strbuf;
- Utils->DoOneToOne(Instance->Config->ServerName, "PUSH", par, source->server);
- return true;
-}
-
-/** remote MOTD. leet, huh? */
-bool TreeSocket::Motd(const std::string &prefix, std::deque<std::string> ¶ms)
-{
- if (params.size() > 0)
- {
- if (this->Instance->MatchText(this->Instance->Config->ServerName, params[0]))
- {
- /* It's for our server */
- string_list results;
- userrec* source = this->Instance->FindNick(prefix);
-
- if (source)
- {
- std::deque<std::string> par;
- par.push_back(prefix);
- par.push_back("");
-
- if (!Instance->Config->MOTD.size())
- {
- par[1] = std::string("::")+Instance->Config->ServerName+" 422 "+source->nick+" :Message of the day file is missing.";
- Utils->DoOneToOne(this->Instance->Config->ServerName, "PUSH",par, source->server);
- return true;
- }
-
- par[1] = std::string("::")+Instance->Config->ServerName+" 375 "+source->nick+" :"+Instance->Config->ServerName+" message of the day";
- Utils->DoOneToOne(this->Instance->Config->ServerName, "PUSH",par, source->server);
-
- for (unsigned int i = 0; i < Instance->Config->MOTD.size(); i++)
- {
- par[1] = std::string("::")+Instance->Config->ServerName+" 372 "+source->nick+" :- "+Instance->Config->MOTD[i];
- Utils->DoOneToOne(this->Instance->Config->ServerName, "PUSH",par, source->server);
- }
-
- par[1] = std::string("::")+Instance->Config->ServerName+" 376 "+source->nick+" End of message of the day.";
- Utils->DoOneToOne(this->Instance->Config->ServerName, "PUSH",par, source->server);
- }
- }
- else
- {
- /* Pass it on */
- userrec* source = this->Instance->FindNick(prefix);
- if (source)
- Utils->DoOneToOne(prefix, "MOTD", params, params[0]);
- }
- }
- return true;
-}
-
-/** remote ADMIN. leet, huh? */
-bool TreeSocket::Admin(const std::string &prefix, std::deque<std::string> ¶ms)
-{
- if (params.size() > 0)
- {
- if (this->Instance->MatchText(this->Instance->Config->ServerName, params[0]))
- {
- /* It's for our server */
- string_list results;
- userrec* source = this->Instance->FindNick(prefix);
- if (source)
- {
- std::deque<std::string> par;
- par.push_back(prefix);
- par.push_back("");
- par[1] = std::string("::")+Instance->Config->ServerName+" 256 "+source->nick+" :Administrative info for "+Instance->Config->ServerName;
- Utils->DoOneToOne(this->Instance->Config->ServerName, "PUSH",par, source->server);
- par[1] = std::string("::")+Instance->Config->ServerName+" 257 "+source->nick+" :Name - "+Instance->Config->AdminName;
- Utils->DoOneToOne(this->Instance->Config->ServerName, "PUSH",par, source->server);
- par[1] = std::string("::")+Instance->Config->ServerName+" 258 "+source->nick+" :Nickname - "+Instance->Config->AdminNick;
- Utils->DoOneToOne(this->Instance->Config->ServerName, "PUSH",par, source->server);
- par[1] = std::string("::")+Instance->Config->ServerName+" 258 "+source->nick+" :E-Mail - "+Instance->Config->AdminEmail;
- Utils->DoOneToOne(this->Instance->Config->ServerName, "PUSH",par, source->server);
- }
- }
- else
- {
- /* Pass it on */
- userrec* source = this->Instance->FindNick(prefix);
- if (source)
- Utils->DoOneToOne(prefix, "ADMIN", params, params[0]);
- }
- }
- return true;
-}
-
-bool TreeSocket::Stats(const std::string &prefix, std::deque<std::string> ¶ms)
-{
- /* Get the reply to a STATS query if it matches this servername,
- * and send it back as a load of PUSH queries
- */
- if (params.size() > 1)
- {
- if (this->Instance->MatchText(this->Instance->Config->ServerName, params[1]))
- {
- /* It's for our server */
- string_list results;
- userrec* source = this->Instance->FindNick(prefix);
- if (source)
- {
- std::deque<std::string> par;
- par.push_back(prefix);
- par.push_back("");
- DoStats(this->Instance, *(params[0].c_str()), source, results);
- for (size_t i = 0; i < results.size(); i++)
- {
- par[1] = "::" + results[i];
- Utils->DoOneToOne(this->Instance->Config->ServerName, "PUSH",par, source->server);
- }
- }
- }
- else
- {
- /* Pass it on */
- userrec* source = this->Instance->FindNick(prefix);
- if (source)
- Utils->DoOneToOne(prefix, "STATS", params, params[1]);
- }
- }
- return true;
-}
-
-
-/** Because the core won't let users or even SERVERS set +o,
- * we use the OPERTYPE command to do this.
- */
-bool TreeSocket::OperType(const std::string &prefix, std::deque<std::string> ¶ms)
-{
- if (params.size() != 1)
- return true;
- std::string opertype = params[0];
- userrec* u = this->Instance->FindNick(prefix);
- if (u)
- {
- u->modes[UM_OPERATOR] = 1;
- this->Instance->all_opers.push_back(u);
- strlcpy(u->oper,opertype.c_str(),NICKMAX-1);
- Utils->DoOneToAllButSender(u->nick,"OPERTYPE",params,u->server);
- 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()));
- }
- return true;
-}
-
-/** Because Andy insists that services-compatible servers must
- * implement SVSNICK and SVSJOIN, that's exactly what we do :p
- */
-bool TreeSocket::ForceNick(const std::string &prefix, std::deque<std::string> ¶ms)
-{
- if (params.size() < 3)
- return true;
-
- userrec* u = this->Instance->FindNick(params[0]);
-
- if (u)
- {
- Utils->DoOneToAllButSender(prefix,"SVSNICK",params,prefix);
- if (IS_LOCAL(u))
- {
- std::deque<std::string> par;
- par.push_back(params[1]);
- if (!u->ForceNickChange(params[1].c_str()))
- {
- userrec::QuitUser(this->Instance, u, "Nickname collision");
- return true;
- }
- u->age = atoi(params[2].c_str());
- }
- }
- return true;
-}
-
-bool TreeSocket::OperQuit(const std::string &prefix, std::deque<std::string> ¶ms)
-{
- if (params.size() < 1)
- return true;
-
- userrec* u = this->Instance->FindNick(prefix);
-
- if (u)
- {
- u->SetOperQuit(params[0]);
- params[0] = ":" + params[0];
- Utils->DoOneToAllButSender(prefix,"OPERQUIT",params,prefix);
- }
- return true;
-}
-
-bool TreeSocket::ServiceJoin(const std::string &prefix, std::deque<std::string> ¶ms)
-{
- if (params.size() < 2)
- return true;
-
- userrec* u = this->Instance->FindNick(params[0]);
-
- if (u)
- {
- /* only join if it's local, otherwise just pass it on! */
- if (IS_LOCAL(u))
- chanrec::JoinUser(this->Instance, u, params[1].c_str(), false, "", Instance->Time());
- Utils->DoOneToAllButSender(prefix,"SVSJOIN",params,prefix);
- }
- return true;
-}
-
-bool TreeSocket::RemoteRehash(const std::string &prefix, std::deque<std::string> ¶ms)
-{
- if (params.size() < 1)
- return false;
-
- std::string servermask = params[0];
-
- if (this->Instance->MatchText(this->Instance->Config->ServerName,servermask))
- {
- this->Instance->SNO->WriteToSnoMask('l',"Remote rehash initiated by \002"+prefix+"\002.");
- this->Instance->RehashServer();
- Utils->ReadConfiguration(false);
- InitializeDisabledCommands(Instance->Config->DisabledCommands, Instance);
- }
- Utils->DoOneToAllButSender(prefix,"REHASH",params,prefix);
- return true;
-}
-
-bool TreeSocket::RemoteKill(const std::string &prefix, std::deque<std::string> ¶ms)
-{
- if (params.size() != 2)
- return true;
-
- userrec* who = this->Instance->FindNick(params[0]);
-
- if (who)
- {
- /* Prepend kill source, if we don't have one */
- if (*(params[1].c_str()) != '[')
- {
- params[1] = "[" + prefix + "] Killed (" + params[1] +")";
- }
- std::string reason = params[1];
- params[1] = ":" + params[1];
- Utils->DoOneToAllButSender(prefix,"KILL",params,prefix);
- // NOTE: This is safe with kill hiding on, as RemoteKill is only reached if we have a server prefix.
- // in short this is not executed for USERS.
- who->Write(":%s KILL %s :%s (%s)", prefix.c_str(), who->nick, prefix.c_str(), reason.c_str());
- userrec::QuitUser(this->Instance,who,reason);
- }
- return true;
-}
-
-bool TreeSocket::LocalPong(const std::string &prefix, std::deque<std::string> ¶ms)
-{
- if (params.size() < 1)
- return true;
-
- if (params.size() == 1)
- {
- TreeServer* ServerSource = Utils->FindServer(prefix);
- if (ServerSource)
- {
- ServerSource->SetPingFlag();
- ServerSource->rtt = Instance->Time() - ServerSource->LastPing;
- }
- }
- else
- {
- std::string forwardto = params[1];
- if (forwardto == this->Instance->Config->ServerName)
- {
- /*
- * this is a PONG for us
- * if the prefix is a user, check theyre local, and if they are,
- * dump the PONG reply back to their fd. If its a server, do nowt.
- * Services might want to send these s->s, but we dont need to yet.
- */
- userrec* u = this->Instance->FindNick(prefix);
- if (u)
- {
- u->WriteServ("PONG %s %s",params[0].c_str(),params[1].c_str());
- }
- }
- else
- {
- // not for us, pass it on :)
- Utils->DoOneToOne(prefix,"PONG",params,forwardto);
- }
- }
-
- return true;
-}
-
-bool TreeSocket::MetaData(const std::string &prefix, std::deque<std::string> ¶ms)
-{
- if (params.size() < 2)
- return true;
- else if (params.size() < 3)
- params.push_back("");
- TreeServer* ServerSource = Utils->FindServer(prefix);
- if (ServerSource)
- {
- Utils->SetRemoteBursting(ServerSource, false);
-
- if (params[0] == "*")
- {
- FOREACH_MOD_I(this->Instance,I_OnDecodeMetaData,OnDecodeMetaData(TYPE_OTHER,NULL,params[1],params[2]));
- }
- else if (*(params[0].c_str()) == '#')
- {
- chanrec* c = this->Instance->FindChan(params[0]);
- if (c)
- {
- FOREACH_MOD_I(this->Instance,I_OnDecodeMetaData,OnDecodeMetaData(TYPE_CHANNEL,c,params[1],params[2]));
- }
- }
- else if (*(params[0].c_str()) != '#')
- {
- userrec* u = this->Instance->FindNick(params[0]);
- if (u)
- {
- FOREACH_MOD_I(this->Instance,I_OnDecodeMetaData,OnDecodeMetaData(TYPE_USER,u,params[1],params[2]));
- }
- }
- }
-
- params[2] = ":" + params[2];
- Utils->DoOneToAllButSender(prefix,"METADATA",params,prefix);
- return true;
-}
-
-bool TreeSocket::ServerVersion(const std::string &prefix, std::deque<std::string> ¶ms)
-{
- if (params.size() < 1)
- return true;
-
- TreeServer* ServerSource = Utils->FindServer(prefix);
-
- if (ServerSource)
- {
- ServerSource->SetVersion(params[0]);
- }
- params[0] = ":" + params[0];
- Utils->DoOneToAllButSender(prefix,"VERSION",params,prefix);
- return true;
-}
-
-bool TreeSocket::ChangeHost(const std::string &prefix, std::deque<std::string> ¶ms)
-{
- if (params.size() < 1)
- return true;
- userrec* u = this->Instance->FindNick(prefix);
-
- if (u)
- {
- u->ChangeDisplayedHost(params[0].c_str());
- Utils->DoOneToAllButSender(prefix,"FHOST",params,u->server);
- }
- return true;
-}
-
-bool TreeSocket::AddLine(const std::string &prefix, std::deque<std::string> ¶ms)
-{
- if (params.size() < 6)
- return true;
- bool propogate = false;
- if (!this->bursting)
- Utils->lines_to_apply = 0;
- switch (*(params[0].c_str()))
- {
- case 'Z':
- propogate = Instance->XLines->add_zline(atoi(params[4].c_str()), params[2].c_str(), params[5].c_str(), params[1].c_str());
- Instance->XLines->zline_set_creation_time(params[1].c_str(), atoi(params[3].c_str()));
- if (propogate)
- Utils->lines_to_apply |= APPLY_ZLINES;
- break;
- case 'Q':
- propogate = Instance->XLines->add_qline(atoi(params[4].c_str()), params[2].c_str(), params[5].c_str(), params[1].c_str());
- Instance->XLines->qline_set_creation_time(params[1].c_str(), atoi(params[3].c_str()));
- if (propogate)
- Utils->lines_to_apply |= APPLY_QLINES;
- break;
- case 'E':
- propogate = Instance->XLines->add_eline(atoi(params[4].c_str()), params[2].c_str(), params[5].c_str(), params[1].c_str());
- Instance->XLines->eline_set_creation_time(params[1].c_str(), atoi(params[3].c_str()));
- break;
- case 'G':
- propogate = Instance->XLines->add_gline(atoi(params[4].c_str()), params[2].c_str(), params[5].c_str(), params[1].c_str());
- Instance->XLines->gline_set_creation_time(params[1].c_str(), atoi(params[3].c_str()));
- if (propogate)
- Utils->lines_to_apply |= APPLY_GLINES;
- break;
- case 'K':
- propogate = Instance->XLines->add_kline(atoi(params[4].c_str()), params[2].c_str(), params[5].c_str(), params[1].c_str());
- if (propogate)
- Utils->lines_to_apply |= APPLY_KLINES;
- break;
- default:
- /* Just in case... */
- this->Instance->SNO->WriteToSnoMask('x',"\2WARNING\2: Invalid xline type '"+params[0]+"' sent by server "+prefix+", ignored!");
- propogate = false;
- break;
- }
- /* Send it on its way */
- if (propogate)
- {
- if (atoi(params[4].c_str()))
- {
- time_t c_requires_crap = ConvToInt(params[4]) + Instance->Time();
- 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());
- }
- else
- {
- 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());
- }
- params[5] = ":" + params[5];
- Utils->DoOneToAllButSender(prefix,"ADDLINE",params,prefix);
- }
- if (!this->bursting)
- {
- Instance->XLines->apply_lines(Utils->lines_to_apply);
- Utils->lines_to_apply = 0;
- }
- return true;
-}
-
-bool TreeSocket::ChangeName(const std::string &prefix, std::deque<std::string> ¶ms)
-{
- if (params.size() < 1)
- return true;
- userrec* u = this->Instance->FindNick(prefix);
- if (u)
- {
- u->ChangeName(params[0].c_str());
- params[0] = ":" + params[0];
- Utils->DoOneToAllButSender(prefix,"FNAME",params,u->server);
- }
- return true;
-}
-
-bool TreeSocket::Whois(const std::string &prefix, std::deque<std::string> ¶ms)
-{
- if (params.size() < 1)
- return true;
- userrec* u = this->Instance->FindNick(prefix);
- if (u)
- {
- // an incoming request
- if (params.size() == 1)
- {
- userrec* x = this->Instance->FindNick(params[0]);
- if ((x) && (IS_LOCAL(x)))
- {
- userrec* x = this->Instance->FindNick(params[0]);
- char signon[MAXBUF];
- char idle[MAXBUF];
- snprintf(signon, MAXBUF, "%lu", (unsigned long)x->signon);
- snprintf(idle, MAXBUF, "%lu", (unsigned long)abs((x->idle_lastmsg) - Instance->Time(true)));
- std::deque<std::string> par;
- par.push_back(prefix);
- par.push_back(signon);
- par.push_back(idle);
- // ours, we're done, pass it BACK
- Utils->DoOneToOne(params[0], "IDLE", par, u->server);
- }
- else
- {
- // not ours pass it on
- if (x)
- Utils->DoOneToOne(prefix, "IDLE", params, x->server);
- }
- }
- else if (params.size() == 3)
- {
- std::string who_did_the_whois = params[0];
- userrec* who_to_send_to = this->Instance->FindNick(who_did_the_whois);
- if ((who_to_send_to) && (IS_LOCAL(who_to_send_to)))
- {
- // an incoming reply to a whois we sent out
- std::string nick_whoised = prefix;
- unsigned long signon = atoi(params[1].c_str());
- unsigned long idle = atoi(params[2].c_str());
- if ((who_to_send_to) && (IS_LOCAL(who_to_send_to)))
- {
- do_whois(this->Instance, who_to_send_to, u, signon, idle, nick_whoised.c_str());
- }
- }
- else
- {
- // not ours, pass it on
- if (who_to_send_to)
- Utils->DoOneToOne(prefix, "IDLE", params, who_to_send_to->server);
- }
- }
- }
- return true;
-}
-
-bool TreeSocket::Push(const std::string &prefix, std::deque<std::string> ¶ms)
-{
- if (params.size() < 2)
- return true;
- userrec* u = this->Instance->FindNick(params[0]);
- if (!u)
- return true;
- if (IS_LOCAL(u))
- {
- u->Write(params[1]);
- }
- else
- {
- // continue the raw onwards
- params[1] = ":" + params[1];
- Utils->DoOneToOne(prefix,"PUSH",params,u->server);
- }
- return true;
-}
-
-bool TreeSocket::HandleSetTime(const std::string &prefix, std::deque<std::string> ¶ms)
-{
- if (!params.size() || !Utils->EnableTimeSync)
- return true;
-
- bool force = false;
-
- if ((params.size() == 2) && (params[1] == "FORCE"))
- force = true;
-
- time_t them = atoi(params[0].c_str());
- time_t us = Instance->Time(false);
-
- time_t diff = them - us;
-
- Utils->DoOneToAllButSender(prefix, "TIMESET", params, prefix);
-
- if (force || (them != us))
- {
- time_t old = Instance->SetTimeDelta(diff);
- Instance->Log(DEBUG, "TS (diff %d) from %s applied (old delta was %d)", diff, prefix.c_str(), old);
- }
-
- return true;
-}
-
-bool TreeSocket::Time(const std::string &prefix, std::deque<std::string> ¶ms)
-{
- // :source.server TIME remote.server sendernick
- // :remote.server TIME source.server sendernick TS
- if (params.size() == 2)
- {
- // someone querying our time?
- if (this->Instance->Config->ServerName == params[0])
- {
- userrec* u = this->Instance->FindNick(params[1]);
- if (u)
- {
- params.push_back(ConvToStr(Instance->Time(false)));
- params[0] = prefix;
- Utils->DoOneToOne(this->Instance->Config->ServerName,"TIME",params,params[0]);
- }
- }
- else
- {
- // not us, pass it on
- userrec* u = this->Instance->FindNick(params[1]);
- if (u)
- Utils->DoOneToOne(prefix,"TIME",params,params[0]);
- }
- }
- else if (params.size() == 3)
- {
- // a response to a previous TIME
- userrec* u = this->Instance->FindNick(params[1]);
- if ((u) && (IS_LOCAL(u)))
- {
- time_t rawtime = atol(params[2].c_str());
- struct tm * timeinfo;
- timeinfo = localtime(&rawtime);
- char tms[26];
- snprintf(tms,26,"%s",asctime(timeinfo));
- tms[24] = 0;
- u->WriteServ("391 %s %s :%s",u->nick,prefix.c_str(),tms);
- }
- else
- {
- if (u)
- Utils->DoOneToOne(prefix,"TIME",params,u->server);
- }
- }
- return true;
-}
-
-bool TreeSocket::LocalPing(const std::string &prefix, std::deque<std::string> ¶ms)
-{
- if (params.size() < 1)
- return true;
- if (params.size() == 1)
- {
- std::string stufftobounce = params[0];
- this->WriteLine(std::string(":")+this->Instance->Config->ServerName+" PONG "+stufftobounce);
- return true;
- }
- else
- {
- std::string forwardto = params[1];
- if (forwardto == this->Instance->Config->ServerName)
- {
- // this is a ping for us, send back PONG to the requesting server
- params[1] = params[0];
- params[0] = forwardto;
- Utils->DoOneToOne(forwardto,"PONG",params,params[1]);
- }
- else
- {
- // not for us, pass it on :)
- Utils->DoOneToOne(prefix,"PING",params,forwardto);
- }
- return true;
- }
-}
-
-/** TODO: This creates a total mess of output and needs to really use irc::modestacker.
- */
-bool TreeSocket::RemoveStatus(const std::string &prefix, std::deque<std::string> ¶ms)
-{
- if (params.size() < 1)
- return true;
- chanrec* c = Instance->FindChan(params[0]);
- if (c)
- {
- for (char modeletter = 'A'; modeletter <= 'z'; modeletter++)
- {
- ModeHandler* mh = Instance->Modes->FindMode(modeletter, MODETYPE_CHANNEL);
- if (mh)
- mh->RemoveMode(c);
- }
- }
- return true;
-}
-
-bool TreeSocket::RemoteServer(const std::string &prefix, std::deque<std::string> ¶ms)
-{
- if (params.size() < 4)
- return false;
- std::string servername = params[0];
- std::string password = params[1];
- // hopcount is not used for a remote server, we calculate this ourselves
- std::string description = params[3];
- TreeServer* ParentOfThis = Utils->FindServer(prefix);
- if (!ParentOfThis)
- {
- this->SendError("Protocol error - Introduced remote server from unknown server "+prefix);
- return false;
- }
- TreeServer* CheckDupe = Utils->FindServer(servername);
- if (CheckDupe)
- {
- this->SendError("Server "+servername+" already exists!");
- this->Instance->SNO->WriteToSnoMask('l',"Server \2"+servername+"\2 being introduced from \2" + prefix + "\2 denied, already exists. Closing link with " + prefix);
- return false;
- }
- Link* lnk = Utils->FindLink(servername);
- TreeServer* Node = new TreeServer(this->Utils,this->Instance,servername,description,ParentOfThis,NULL, lnk ? lnk->Hidden : false);
- ParentOfThis->AddChild(Node);
- params[3] = ":" + params[3];
- Utils->SetRemoteBursting(Node, true);
- Utils->DoOneToAllButSender(prefix,"SERVER",params,prefix);
- this->Instance->SNO->WriteToSnoMask('l',"Server \002"+prefix+"\002 introduced server \002"+servername+"\002 ("+description+")");
- return true;
-}
-
-bool TreeSocket::ComparePass(const std::string &ours, const std::string &theirs)
-{
- if ((!strncmp(ours.c_str(), "HMAC-SHA256:", 12)) || (!strncmp(theirs.c_str(), "HMAC-SHA256:", 12)))
- {
- /* One or both of us specified hmac sha256, but we don't have sha256 module loaded!
- * We can't allow this password as valid.
- */
- if (!Instance->FindModule("m_sha256.so") || !Utils->ChallengeResponse)
- return false;
- else
- /* Straight string compare of hashes */
- return ours == theirs;
- }
- else
- /* Straight string compare of plaintext */
- return ours == theirs;
-}
-
-bool TreeSocket::Outbound_Reply_Server(std::deque<std::string> ¶ms)
-{
- if (params.size() < 4)
- return false;
-
- irc::string servername = params[0].c_str();
- std::string sname = params[0];
- std::string password = params[1];
- std::string description = params[3];
- int hops = atoi(params[2].c_str());
-
- this->InboundServerName = sname;
- this->InboundDescription = description;
-
- if (!sentcapab)
- this->SendCapabilities();
-
- if (hops)
- {
- this->SendError("Server too far away for authentication");
- this->Instance->SNO->WriteToSnoMask('l',"Server connection from \2"+sname+"\2 denied, server is too far away for authentication");
- return false;
- }
-
- for (std::vector<Link>::iterator x = Utils->LinkBlocks.begin(); x < Utils->LinkBlocks.end(); x++)
- {
- if ((x->Name == servername) && ((ComparePass(this->MakePass(x->RecvPass,this->GetOurChallenge()),password)) || (x->RecvPass == password && (this->GetTheirChallenge().empty()))))
- {
- TreeServer* CheckDupe = Utils->FindServer(sname);
- if (CheckDupe)
- {
- this->SendError("Server "+sname+" already exists on server "+CheckDupe->GetParent()->GetName()+"!");
- this->Instance->SNO->WriteToSnoMask('l',"Server connection from \2"+sname+"\2 denied, already exists on server "+CheckDupe->GetParent()->GetName());
- return false;
- }
- // Begin the sync here. this kickstarts the
- // other side, waiting in WAIT_AUTH_2 state,
- // into starting their burst, as it shows
- // that we're happy.
- this->LinkState = CONNECTED;
- // we should add the details of this server now
- // to the servers tree, as a child of the root
- // node.
- TreeServer* Node = new TreeServer(this->Utils,this->Instance,sname,description,Utils->TreeRoot,this,x->Hidden);
- Utils->TreeRoot->AddChild(Node);
- params[3] = ":" + params[3];
- Utils->DoOneToAllButSender(Utils->TreeRoot->GetName(),"SERVER",params,sname);
- this->bursting = true;
- this->DoBurst(Node);
- return true;
- }
- }
- this->SendError("Invalid credentials");
- this->Instance->SNO->WriteToSnoMask('l',"Server connection from \2"+sname+"\2 denied, invalid link credentials");
- return false;
-}
-
-bool TreeSocket::Inbound_Server(std::deque<std::string> ¶ms)
-{
- if (params.size() < 4)
- return false;
- irc::string servername = params[0].c_str();
- std::string sname = params[0];
- std::string password = params[1];
- std::string description = params[3];
- int hops = atoi(params[2].c_str());
-
- this->InboundServerName = sname;
- this->InboundDescription = description;
-
- if (!sentcapab)
- this->SendCapabilities();
-
- if (hops)
- {
- this->SendError("Server too far away for authentication");
- this->Instance->SNO->WriteToSnoMask('l',"Server connection from \2"+sname+"\2 denied, server is too far away for authentication");
- return false;
- }
-
- for (std::vector<Link>::iterator x = Utils->LinkBlocks.begin(); x < Utils->LinkBlocks.end(); x++)
- {
- if ((x->Name == servername) && ((ComparePass(this->MakePass(x->RecvPass,this->GetOurChallenge()),password) || x->RecvPass == password && (this->GetTheirChallenge().empty()))))
- {
- /* First check for instances of the server that are waiting between the inbound and outbound SERVER command */
- TreeSocket* CheckDupeSocket = Utils->FindBurstingServer(sname);
- if (CheckDupeSocket)
- {
- /* If we find one, we abort the link to prevent a race condition */
- this->SendError("Negotiation collision");
- this->Instance->SNO->WriteToSnoMask('l',"Server connection from \2"+sname+"\2 denied, already exists in a negotiating state.");
- CheckDupeSocket->SendError("Negotiation collision");
- Instance->SE->DelFd(CheckDupeSocket);
- CheckDupeSocket->Close();
- delete CheckDupeSocket;
- return false;
- }
- /* Now check for fully initialized instances of the server */
- TreeServer* CheckDupe = Utils->FindServer(sname);
- if (CheckDupe)
- {
- this->SendError("Server "+sname+" already exists on server "+CheckDupe->GetParent()->GetName()+"!");
- this->Instance->SNO->WriteToSnoMask('l',"Server connection from \2"+sname+"\2 denied, already exists on server "+CheckDupe->GetParent()->GetName());
- return false;
- }
- this->Instance->SNO->WriteToSnoMask('l',"Verified incoming server connection from \002"+sname+"\002["+(x->HiddenFromStats ? "<hidden>" : this->GetIP())+"] ("+description+")");
- if (this->Hook)
- {
- std::string name = InspSocketNameRequest((Module*)Utils->Creator, this->Hook).Send();
- this->Instance->SNO->WriteToSnoMask('l',"Connection from \2"+sname+"\2["+(x->HiddenFromStats ? "<hidden>" : this->GetIP())+"] using transport \2"+name+"\2");
- }
-
- Utils->AddBurstingServer(sname,this);
-
- // this is good. Send our details: Our server name and description and hopcount of 0,
- // along with the sendpass from this block.
- this->WriteLine(std::string("SERVER ")+this->Instance->Config->ServerName+" "+this->MakePass(x->SendPass, this->GetTheirChallenge())+" 0 :"+this->Instance->Config->ServerDesc);
- // move to the next state, we are now waiting for THEM.
- this->LinkState = WAIT_AUTH_2;
- return true;
- }
- }
- this->SendError("Invalid credentials");
- this->Instance->SNO->WriteToSnoMask('l',"Server connection from \2"+sname+"\2 denied, invalid link credentials");
- 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))
- {
- if (!param.empty())
- 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->Log(DEBUG, "S[%d] <- %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();
- }
- command = params[0].c_str();
- params.pop_front();
- switch (this->LinkState)
- {
- TreeServer* Node;
-
- case 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")
- {
- /* Silently ignored */
- }
- 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 if ((command == "U") || (command == "S"))
- {
- this->SendError("Cannot use the old-style mesh linking protocol with m_spanningtree.so!");
- return false;
- }
- else
- {
- irc::string error = "Invalid command in negotiation phase: " + command;
- this->SendError(assign(error));
- return false;
- }
- break;
- case WAIT_AUTH_2:
- // Waiting for start of other side's netmerge to say they liked our
- // password.
- if (command == "SERVER")
- {
- // cant do this, they sent it to us in the WAIT_AUTH_1 state!
- // silently ignore.
- return true;
- }
- else if ((command == "U") || (command == "S"))
- {
- this->SendError("Cannot use the old-style mesh linking protocol with m_spanningtree.so!");
- return false;
- }
- else if (command == "BURST")
- {
- if (params.size() && Utils->EnableTimeSync)
- {
- bool we_have_delta = (Instance->Time(false) != Instance->Time(true));
- time_t them = atoi(params[0].c_str());
- time_t delta = them - Instance->Time(false);
- if ((delta < -300) || (delta > 300))
- {
- 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));
- }
-
- if (!Utils->MasterTime && !we_have_delta)
- {
- this->Instance->SetTimeDelta(delta);
- // Send this new timestamp to any other servers
- Utils->DoOneToMany(Utils->TreeRoot->GetName(), "TIMESET", params);
- }
- }
- this->LinkState = CONNECTED;
- Link* lnk = Utils->FindLink(InboundServerName);
- Node = new TreeServer(this->Utils,this->Instance, InboundServerName, InboundDescription, Utils->TreeRoot, this, lnk ? lnk->Hidden : false);
- Utils->DelBurstingServer(this);
- Utils->TreeRoot->AddChild(Node);
- params.clear();
- params.push_back(InboundServerName);
- params.push_back("*");
- params.push_back("1");
- params.push_back(":"+InboundDescription);
- Utils->DoOneToAllButSender(Utils->TreeRoot->GetName(),"SERVER",params,InboundServerName);
- this->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->SendError("Internal error -- listening socket accepted its own descriptor!!!");
- return false;
- break;
- case CONNECTING:
- if (command == "SERVER")
- {
- // another server we connected to, which was in WAIT_AUTH_1 state,
- // has just sent us their credentials. If we get this far, theyre
- // happy with OUR credentials, and they are now in WAIT_AUTH_2 state.
- // if we're happy with this, we should send our netburst which
- // kickstarts the merge.
- 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:
- // This is the 'authenticated' state, when all passwords
- // have been exchanged and anything past this point is taken
- // as gospel.
-
- if (!prefix.empty())
- {
- std::string direction = prefix;
- userrec* t = this->Instance->FindNick(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->Log(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(time(NULL) + 60);
- route_back_again->SetPingFlag();
- }
- else
- {
- prefix = this->GetName();
- }
-
- if ((command == "MODE") && (params.size() >= 2))
- {
- chanrec* channel = Instance->FindChan(params[0]);
- if (channel)
- {
- userrec* x = Instance->FindNick(prefix);
- if (x)
- {
- if (warned.find(x->server) == warned.end())
- {
- 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);
- 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());
- warned[x->server] = x->nick;
- }
- }
- }
- }
-
- if (command == "SVSMODE")
- {
- /* Services expects us to implement
- * SVSMODE. In inspircd its the same as
- * MODE anyway.
- */
- command = "MODE";
- }
- std::string target;
- /* Yes, know, this is a mess. Its reasonably fast though as we're
- * working with std::string here.
- */
- if ((command == "NICK") && (params.size() >= 8))
- {
- return this->IntroduceClient(prefix,params);
- }
- else if (command == "FJOIN")
- {
- TreeServer* ServerSource = Utils->FindServer(prefix);
- if (ServerSource)
- Utils->SetRemoteBursting(ServerSource, false);
- return this->ForceJoin(prefix,params);
- }
- else if (command == "STATS")
- {
- return this->Stats(prefix, params);
- }
- else if (command == "MOTD")
- {
- return this->Motd(prefix, params);
- }
- else if (command == "KILL" && Utils->IsServer(prefix))
- {
- 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 == "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")
- {
- TreeServer* ServerSource = Utils->FindServer(prefix);
- if (ServerSource)
- Utils->SetRemoteBursting(ServerSource, false);
- 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 == "REMSTATUS")
- {
- return this->RemoveStatus(prefix,params);
- }
- else if (command == "PING")
- {
- if (prefix.empty())
- prefix = this->GetName();
- /*
- * We just got a ping from a server that's bursting.
- * This can't be right, so set them to not bursting, and
- * apply their lines.
- */
- TreeServer* ServerSource = Utils->FindServer(prefix);
- if (ServerSource)
- Utils->SetRemoteBursting(ServerSource, false);
-
- if (this->bursting)
- {
- this->bursting = false;
- Instance->XLines->apply_lines(Utils->lines_to_apply);
- Utils->lines_to_apply = 0;
- }
-
- return this->LocalPing(prefix,params);
- }
- else if (command == "PONG")
- {
- if (prefix.empty())
- prefix = this->GetName();
- /*
- * We just got a pong from a server that's bursting.
- * This can't be right, so set them to not bursting, and
- * apply their lines.
- */
- TreeServer* ServerSource = Utils->FindServer(prefix);
- if (ServerSource)
- Utils->SetRemoteBursting(ServerSource, false);
-
- if (this->bursting)
- {
- this->bursting = false;
- Instance->XLines->apply_lines(Utils->lines_to_apply);
- Utils->lines_to_apply = 0;
- }
-
- 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")
- {
- TreeServer* ServerSource = Utils->FindServer(prefix);
- if (ServerSource)
- Utils->SetRemoteBursting(ServerSource, false);
- return this->AddLine(prefix,params);
- }
- else if (command == "SVSNICK")
- {
- if (prefix.empty())
- {
- prefix = this->GetName();
- }
- 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 == "TIMESET")
- {
- return this->HandleSetTime(prefix, params);
- }
- else if (command == "TIME")
- {
- return this->Time(prefix,params);
- }
- else if ((command == "KICK") && (Utils->IsServer(prefix)))
- {
- std::string sourceserv = this->myhost;
- if (params.size() == 3)
- {
- userrec* user = this->Instance->FindNick(params[1]);
- chanrec* chan = this->Instance->FindChan(params[0]);
- if (user && chan)
- {
- if (!chan->ServerKickUser(user, params[2].c_str(), false))
- /* Yikes, the channels gone! */
- delete chan;
- }
- }
- if (!this->InboundServerName.empty())
- {
- sourceserv = this->InboundServerName;
- }
- return Utils->DoOneToAllButSenderRaw(line,sourceserv,prefix,command,params);
- }
- else if (command == "SVSJOIN")
- {
- if (prefix.empty())
- {
- prefix = this->GetName();
- }
- return this->ServiceJoin(prefix,params);
- }
- else if (command == "SQUIT")
- {
- if (params.size() == 2)
- {
- this->Squit(Utils->FindServer(params[0]),params[1]);
- }
- return true;
- }
- else if (command == "OPERNOTICE")
- {
- std::string sourceserv = this->myhost;
- if (!this->InboundServerName.empty())
- sourceserv = this->InboundServerName;
- if (params.size() >= 1)
- Instance->WriteOpers("*** From " + sourceserv + ": " + params[0]);
- return Utils->DoOneToAllButSenderRaw(line, sourceserv, prefix, command, params);
- }
- else if (command == "MODENOTICE")
- {
- std::string sourceserv = this->myhost;
- if (!this->InboundServerName.empty())
- sourceserv = this->InboundServerName;
- if (params.size() >= 2)
- {
- Instance->WriteMode(params[0].c_str(), WM_AND, "*** From %s: %s", sourceserv.c_str(), params[1].c_str());
- }
- return Utils->DoOneToAllButSenderRaw(line, sourceserv, prefix, command, params);
- }
- else if (command == "SNONOTICE")
- {
- std::string sourceserv = this->myhost;
- if (!this->InboundServerName.empty())
- sourceserv = this->InboundServerName;
- if (params.size() >= 2)
- {
- Instance->SNO->WriteToSnoMask(*(params[0].c_str()), "From " + sourceserv + ": "+ params[1]);
- }
- return Utils->DoOneToAllButSenderRaw(line, sourceserv, prefix, command, params);
- }
- else if (command == "ENDBURST")
- {
- this->bursting = false;
- Instance->XLines->apply_lines(Utils->lines_to_apply);
- Utils->lines_to_apply = 0;
- std::string sourceserv = this->myhost;
- if (!this->InboundServerName.empty())
- sourceserv = this->InboundServerName;
- this->Instance->SNO->WriteToSnoMask('l',"Received end of netburst from \2%s\2",sourceserv.c_str());
-
- Event rmode((char*)sourceserv.c_str(), (Module*)Utils->Creator, "new_server");
- rmode.Send(Instance);
-
- return true;
- }
- else
- {
- // not a special inter-server command.
- // Emulate the actual user doing the command,
- // this saves us having a huge ugly parser.
- userrec* who = this->Instance->FindNick(prefix);
- std::string sourceserv = this->myhost;
- if (!this->InboundServerName.empty())
- {
- sourceserv = this->InboundServerName;
- }
- if ((!who) && (command == "MODE"))
- {
- if (Utils->IsServer(prefix))
- {
- const char* modelist[127];
- for (size_t i = 0; i < params.size(); i++)
- modelist[i] = params[i].c_str();
- userrec* fake = new userrec(Instance);
- fake->SetFd(FD_MAGIC_NUMBER);
- this->Instance->SendMode(modelist, params.size(), fake);
-
- delete fake;
- /* Hot potato! pass it on! */
- return Utils->DoOneToAllButSenderRaw(line,sourceserv,prefix,command,params);
- }
- }
- if (who)
- {
- if ((command == "NICK") && (params.size() > 0))
- {
- /* On nick messages, check that the nick doesnt
- * already exist here. If it does, kill their copy,
- * and our copy.
- */
- userrec* x = this->Instance->FindNick(params[0]);
- if ((x) && (x != who))
- {
- std::deque<std::string> p;
- p.push_back(params[0]);
- p.push_back("Nickname collision ("+prefix+" -> "+params[0]+")");
- Utils->DoOneToMany(this->Instance->Config->ServerName,"KILL",p);
- p.clear();
- p.push_back(prefix);
- p.push_back("Nickname collision");
- Utils->DoOneToMany(this->Instance->Config->ServerName,"KILL",p);
- userrec::QuitUser(this->Instance,x,"Nickname collision ("+prefix+" -> "+params[0]+")");
- userrec* y = this->Instance->FindNick(prefix);
- if (y)
- {
- userrec::QuitUser(this->Instance,y,"Nickname collision");
- }
- return Utils->DoOneToAllButSenderRaw(line,sourceserv,prefix,command,params);
- }
- }
- // its a user
- target = who->server;
- 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:
- this->SendError("Unrecognised command '"+std::string(command.c_str())+"' -- possibly loaded mismatched modules");
- return false;
- break;
- case CMD_FAILURE:
- return true;
- break;
- default:
- /* CMD_SUCCESS and CMD_USER_DELETED fall through here */
- break;
- }
- }
- else
- {
- // its not a user. Its either a server, or somethings screwed up.
- if (Utils->IsServer(prefix))
- target = this->Instance->Config->ServerName;
- else
- return true;
- }
- return Utils->DoOneToAllButSenderRaw(line,sourceserv,prefix,command,params);
-
- }
- return true;
- break;
- }
- 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)
- {
- this->Instance->SNO->WriteToSnoMask('l',"CONNECT: Connection to \002"+myhost+"\002 timed out.");
- Link* MyLink = Utils->FindLink(myhost);
- if (MyLink)
- Utils->DoFailOver(MyLink);
- }
-}
-
-void TreeSocket::OnClose()
-{
- // 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())
- {
- this->Instance->SNO->WriteToSnoMask('l',"Connection to '\2%s\2' failed.",quitserver.c_str());
- time_t server_uptime = Instance->Time() - this->age;
- if (server_uptime)
- Instance->SNO->WriteToSnoMask('l',"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 (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)
- {
- this->Instance->SNO->WriteToSnoMask('l',"Server connection from %s denied (no link blocks with that IP address)", ip);
- 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;
-}
+/* +------------------------------------+\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
projects / user / henk / code / inspircd.git / blobdiff