1 #include "configreader.h"
5 #include "commands/cmd_whois.h"
6 #include "commands/cmd_stats.h"
11 #include "transport.h"
12 #include "socketengine.h"
14 #include "m_spanningtree/main.h"
15 #include "m_spanningtree/utils.h"
16 #include "m_spanningtree/treeserver.h"
17 #include "m_spanningtree/link.h"
18 #include "m_spanningtree/treesocket.h"
19 #include "m_spanningtree/resolvers.h"
20 #include "m_spanningtree/handshaketimer.h"
22 /* $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 */
24 int TreeSocket::WriteLine(std::string line)
26 Instance->Log(DEBUG, "-> %s", line.c_str());
28 return this->Write(line);
31 /* Handle ERROR command */
32 bool TreeSocket::Error(std::deque<std::string> ¶ms)
34 if (params.size() < 1)
36 this->Instance->SNO->WriteToSnoMask('l',"ERROR from %s: %s",(InboundServerName != "" ? InboundServerName.c_str() : myhost.c_str()),params[0].c_str());
37 /* we will return false to cause the socket to close. */
41 /** remote MOTD. leet, huh? */
42 bool TreeSocket::Motd(const std::string &prefix, std::deque<std::string> ¶ms)
44 if (params.size() > 0)
46 if (this->Instance->MatchText(this->Instance->Config->ServerName, params[0]))
48 /* It's for our server */
50 userrec* source = this->Instance->FindNick(prefix);
54 std::deque<std::string> par;
55 par.push_back(prefix);
58 if (!Instance->Config->MOTD.size())
60 par[1] = std::string("::")+Instance->Config->ServerName+" 422 "+source->nick+" :Message of the day file is missing.";
61 Utils->DoOneToOne(this->Instance->Config->ServerName, "PUSH",par, source->server);
65 par[1] = std::string("::")+Instance->Config->ServerName+" 375 "+source->nick+" :"+Instance->Config->ServerName+" message of the day";
66 Utils->DoOneToOne(this->Instance->Config->ServerName, "PUSH",par, source->server);
68 for (unsigned int i = 0; i < Instance->Config->MOTD.size(); i++)
70 par[1] = std::string("::")+Instance->Config->ServerName+" 372 "+source->nick+" :- "+Instance->Config->MOTD[i];
71 Utils->DoOneToOne(this->Instance->Config->ServerName, "PUSH",par, source->server);
74 par[1] = std::string("::")+Instance->Config->ServerName+" 376 "+source->nick+" End of message of the day.";
75 Utils->DoOneToOne(this->Instance->Config->ServerName, "PUSH",par, source->server);
81 userrec* source = this->Instance->FindNick(prefix);
83 Utils->DoOneToOne(prefix, "MOTD", params, params[0]);
89 /** remote ADMIN. leet, huh? */
90 bool TreeSocket::Admin(const std::string &prefix, std::deque<std::string> ¶ms)
92 if (params.size() > 0)
94 if (this->Instance->MatchText(this->Instance->Config->ServerName, params[0]))
96 /* It's for our server */
98 userrec* source = this->Instance->FindNick(prefix);
101 std::deque<std::string> par;
102 par.push_back(prefix);
104 par[1] = std::string("::")+Instance->Config->ServerName+" 256 "+source->nick+" :Administrative info for "+Instance->Config->ServerName;
105 Utils->DoOneToOne(this->Instance->Config->ServerName, "PUSH",par, source->server);
106 par[1] = std::string("::")+Instance->Config->ServerName+" 257 "+source->nick+" :Name - "+Instance->Config->AdminName;
107 Utils->DoOneToOne(this->Instance->Config->ServerName, "PUSH",par, source->server);
108 par[1] = std::string("::")+Instance->Config->ServerName+" 258 "+source->nick+" :Nickname - "+Instance->Config->AdminNick;
109 Utils->DoOneToOne(this->Instance->Config->ServerName, "PUSH",par, source->server);
110 par[1] = std::string("::")+Instance->Config->ServerName+" 258 "+source->nick+" :E-Mail - "+Instance->Config->AdminEmail;
111 Utils->DoOneToOne(this->Instance->Config->ServerName, "PUSH",par, source->server);
117 userrec* source = this->Instance->FindNick(prefix);
119 Utils->DoOneToOne(prefix, "ADMIN", params, params[0]);
125 bool TreeSocket::Stats(const std::string &prefix, std::deque<std::string> ¶ms)
127 /* Get the reply to a STATS query if it matches this servername,
128 * and send it back as a load of PUSH queries
130 if (params.size() > 1)
132 if (this->Instance->MatchText(this->Instance->Config->ServerName, params[1]))
134 /* It's for our server */
136 userrec* source = this->Instance->FindNick(prefix);
139 std::deque<std::string> par;
140 par.push_back(prefix);
142 DoStats(this->Instance, *(params[0].c_str()), source, results);
143 for (size_t i = 0; i < results.size(); i++)
145 par[1] = "::" + results[i];
146 Utils->DoOneToOne(this->Instance->Config->ServerName, "PUSH",par, source->server);
153 userrec* source = this->Instance->FindNick(prefix);
155 Utils->DoOneToOne(prefix, "STATS", params, params[1]);
162 /** Because the core won't let users or even SERVERS set +o,
163 * we use the OPERTYPE command to do this.
165 bool TreeSocket::OperType(const std::string &prefix, std::deque<std::string> ¶ms)
167 if (params.size() != 1)
169 std::string opertype = params[0];
170 userrec* u = this->Instance->FindNick(prefix);
173 u->modes[UM_OPERATOR] = 1;
174 this->Instance->all_opers.push_back(u);
175 strlcpy(u->oper,opertype.c_str(),NICKMAX-1);
176 Utils->DoOneToAllButSender(u->nick,"OPERTYPE",params,u->server);
177 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()));
182 /** Because Andy insists that services-compatible servers must
183 * implement SVSNICK and SVSJOIN, that's exactly what we do :p
185 bool TreeSocket::ForceNick(const std::string &prefix, std::deque<std::string> ¶ms)
187 if (params.size() < 3)
190 userrec* u = this->Instance->FindNick(params[0]);
194 Utils->DoOneToAllButSender(prefix,"SVSNICK",params,prefix);
197 std::deque<std::string> par;
198 par.push_back(params[1]);
199 if (!u->ForceNickChange(params[1].c_str()))
201 userrec::QuitUser(this->Instance, u, "Nickname collision");
204 u->age = atoi(params[2].c_str());
211 * Remote SQUIT (RSQUIT). Routing works similar to SVSNICK: Route it to the server that the target is connected to locally,
212 * then let that server do the dirty work (squit it!). Example:
213 * A -> B -> C -> D: oper on A squits D, A routes to B, B routes to C, C notices D connected locally, kills it. -- w00t
215 bool TreeSocket::RemoteSquit(const std::string &prefix, std::deque<std::string> ¶ms)
217 /* ok.. :w00t RSQUIT jupe.barafranca.com :reason here */
218 if (params.size() < 2)
221 TreeServer* s = Utils->FindServerMask(params[0]);
225 if (s == Utils->TreeRoot)
227 this->Instance->SNO->WriteToSnoMask('l',"What the fuck, I recieved a remote SQUIT for myself? :< (from %s", prefix.c_str());
231 TreeSocket* sock = s->GetSocket();
235 /* it's locally connected, KILL IT! */
236 Instance->SNO->WriteToSnoMask('l',"RSQUIT: Server \002%s\002 removed from network by %s: %s", params[0].c_str(), prefix.c_str(), params[1].c_str());
237 sock->Squit(s,"Server quit by " + prefix + ": " + params[1]);
238 Instance->SE->DelFd(sock);
244 /* route the rsquit */
245 params[1] = ":" + params[1];
246 Utils->DoOneToOne(prefix, "RSQUIT", params, params[0]);
251 /* mother fucker! it doesn't exist */
257 bool TreeSocket::ServiceJoin(const std::string &prefix, std::deque<std::string> ¶ms)
259 if (params.size() < 2)
262 userrec* u = this->Instance->FindNick(params[0]);
266 /* only join if it's local, otherwise just pass it on! */
268 chanrec::JoinUser(this->Instance, u, params[1].c_str(), false);
269 Utils->DoOneToAllButSender(prefix,"SVSJOIN",params,prefix);
274 bool TreeSocket::RemoteRehash(const std::string &prefix, std::deque<std::string> ¶ms)
276 if (params.size() < 1)
279 std::string servermask = params[0];
281 if (this->Instance->MatchText(this->Instance->Config->ServerName,servermask))
283 this->Instance->SNO->WriteToSnoMask('l',"Remote rehash initiated by \002"+prefix+"\002.");
284 this->Instance->RehashServer();
285 Utils->ReadConfiguration(false);
286 InitializeDisabledCommands(Instance->Config->DisabledCommands, Instance);
288 Utils->DoOneToAllButSender(prefix,"REHASH",params,prefix);
292 bool TreeSocket::RemoteKill(const std::string &prefix, std::deque<std::string> ¶ms)
294 if (params.size() != 2)
297 std::string nick = params[0];
298 userrec* u = this->Instance->FindNick(prefix);
299 userrec* who = this->Instance->FindNick(nick);
303 /* Prepend kill source, if we don't have one */
304 std::string sourceserv = prefix;
307 sourceserv = u->server;
309 if (*(params[1].c_str()) != '[')
311 params[1] = "[" + sourceserv + "] Killed (" + params[1] +")";
313 std::string reason = params[1];
314 params[1] = ":" + params[1];
315 Utils->DoOneToAllButSender(prefix,"KILL",params,sourceserv);
316 who->Write(":%s KILL %s :%s (%s)", sourceserv.c_str(), who->nick, sourceserv.c_str(), reason.c_str());
317 userrec::QuitUser(this->Instance,who,reason);
322 bool TreeSocket::LocalPong(const std::string &prefix, std::deque<std::string> ¶ms)
324 if (params.size() < 1)
327 if (params.size() == 1)
329 TreeServer* ServerSource = Utils->FindServer(prefix);
332 ServerSource->SetPingFlag();
337 std::string forwardto = params[1];
338 if (forwardto == this->Instance->Config->ServerName)
341 * this is a PONG for us
342 * if the prefix is a user, check theyre local, and if they are,
343 * dump the PONG reply back to their fd. If its a server, do nowt.
344 * Services might want to send these s->s, but we dont need to yet.
346 userrec* u = this->Instance->FindNick(prefix);
349 u->WriteServ("PONG %s %s",params[0].c_str(),params[1].c_str());
354 // not for us, pass it on :)
355 Utils->DoOneToOne(prefix,"PONG",params,forwardto);
362 bool TreeSocket::MetaData(const std::string &prefix, std::deque<std::string> ¶ms)
364 if (params.size() < 3)
366 TreeServer* ServerSource = Utils->FindServer(prefix);
369 if (params[0] == "*")
371 FOREACH_MOD_I(this->Instance,I_OnDecodeMetaData,OnDecodeMetaData(TYPE_OTHER,NULL,params[1],params[2]));
373 else if (*(params[0].c_str()) == '#')
375 chanrec* c = this->Instance->FindChan(params[0]);
378 FOREACH_MOD_I(this->Instance,I_OnDecodeMetaData,OnDecodeMetaData(TYPE_CHANNEL,c,params[1],params[2]));
381 else if (*(params[0].c_str()) != '#')
383 userrec* u = this->Instance->FindNick(params[0]);
386 FOREACH_MOD_I(this->Instance,I_OnDecodeMetaData,OnDecodeMetaData(TYPE_USER,u,params[1],params[2]));
391 params[2] = ":" + params[2];
392 Utils->DoOneToAllButSender(prefix,"METADATA",params,prefix);
396 bool TreeSocket::ServerVersion(const std::string &prefix, std::deque<std::string> ¶ms)
398 if (params.size() < 1)
401 TreeServer* ServerSource = Utils->FindServer(prefix);
405 ServerSource->SetVersion(params[0]);
407 params[0] = ":" + params[0];
408 Utils->DoOneToAllButSender(prefix,"VERSION",params,prefix);
412 bool TreeSocket::ChangeHost(const std::string &prefix, std::deque<std::string> ¶ms)
414 if (params.size() < 1)
416 userrec* u = this->Instance->FindNick(prefix);
420 u->ChangeDisplayedHost(params[0].c_str());
421 Utils->DoOneToAllButSender(prefix,"FHOST",params,u->server);
426 bool TreeSocket::AddLine(const std::string &prefix, std::deque<std::string> ¶ms)
428 if (params.size() < 6)
430 bool propogate = false;
432 Utils->lines_to_apply = 0;
433 switch (*(params[0].c_str()))
436 propogate = Instance->XLines->add_zline(atoi(params[4].c_str()), params[2].c_str(), params[5].c_str(), params[1].c_str());
437 Instance->XLines->zline_set_creation_time(params[1].c_str(), atoi(params[3].c_str()));
439 Utils->lines_to_apply |= APPLY_ZLINES;
442 propogate = Instance->XLines->add_qline(atoi(params[4].c_str()), params[2].c_str(), params[5].c_str(), params[1].c_str());
443 Instance->XLines->qline_set_creation_time(params[1].c_str(), atoi(params[3].c_str()));
445 Utils->lines_to_apply |= APPLY_QLINES;
448 propogate = Instance->XLines->add_eline(atoi(params[4].c_str()), params[2].c_str(), params[5].c_str(), params[1].c_str());
449 Instance->XLines->eline_set_creation_time(params[1].c_str(), atoi(params[3].c_str()));
452 propogate = Instance->XLines->add_gline(atoi(params[4].c_str()), params[2].c_str(), params[5].c_str(), params[1].c_str());
453 Instance->XLines->gline_set_creation_time(params[1].c_str(), atoi(params[3].c_str()));
455 Utils->lines_to_apply |= APPLY_GLINES;
458 propogate = Instance->XLines->add_kline(atoi(params[4].c_str()), params[2].c_str(), params[5].c_str(), params[1].c_str());
460 Utils->lines_to_apply |= APPLY_KLINES;
463 /* Just in case... */
464 this->Instance->SNO->WriteToSnoMask('x',"\2WARNING\2: Invalid xline type '"+params[0]+"' sent by server "+prefix+", ignored!");
468 /* Send it on its way */
471 if (atoi(params[4].c_str()))
473 this->Instance->SNO->WriteToSnoMask('x',"%s Added %cLINE on %s to expire in %lu seconds (%s).",prefix.c_str(),*(params[0].c_str()),params[1].c_str(),atoi(params[4].c_str()),params[5].c_str());
477 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());
479 params[5] = ":" + params[5];
480 Utils->DoOneToAllButSender(prefix,"ADDLINE",params,prefix);
484 Instance->XLines->apply_lines(Utils->lines_to_apply);
485 Utils->lines_to_apply = 0;
490 bool TreeSocket::ChangeName(const std::string &prefix, std::deque<std::string> ¶ms)
492 if (params.size() < 1)
494 userrec* u = this->Instance->FindNick(prefix);
497 u->ChangeName(params[0].c_str());
498 params[0] = ":" + params[0];
499 Utils->DoOneToAllButSender(prefix,"FNAME",params,u->server);
504 bool TreeSocket::Whois(const std::string &prefix, std::deque<std::string> ¶ms)
506 if (params.size() < 1)
508 userrec* u = this->Instance->FindNick(prefix);
511 // an incoming request
512 if (params.size() == 1)
514 userrec* x = this->Instance->FindNick(params[0]);
515 if ((x) && (IS_LOCAL(x)))
517 userrec* x = this->Instance->FindNick(params[0]);
520 snprintf(signon,MAXBUF,"%lu",(unsigned long)x->signon);
521 snprintf(idle,MAXBUF,"%lu",(unsigned long)abs((x->idle_lastmsg)-Instance->Time(true)));
522 std::deque<std::string> par;
523 par.push_back(prefix);
524 par.push_back(signon);
526 // ours, we're done, pass it BACK
527 Utils->DoOneToOne(params[0],"IDLE",par,u->server);
531 // not ours pass it on
532 Utils->DoOneToOne(prefix,"IDLE",params,x->server);
535 else if (params.size() == 3)
537 std::string who_did_the_whois = params[0];
538 userrec* who_to_send_to = this->Instance->FindNick(who_did_the_whois);
539 if ((who_to_send_to) && (IS_LOCAL(who_to_send_to)))
541 // an incoming reply to a whois we sent out
542 std::string nick_whoised = prefix;
543 unsigned long signon = atoi(params[1].c_str());
544 unsigned long idle = atoi(params[2].c_str());
545 if ((who_to_send_to) && (IS_LOCAL(who_to_send_to)))
546 do_whois(this->Instance,who_to_send_to,u,signon,idle,nick_whoised.c_str());
550 // not ours, pass it on
551 Utils->DoOneToOne(prefix,"IDLE",params,who_to_send_to->server);
558 bool TreeSocket::Push(const std::string &prefix, std::deque<std::string> ¶ms)
560 if (params.size() < 2)
562 userrec* u = this->Instance->FindNick(params[0]);
571 // continue the raw onwards
572 params[1] = ":" + params[1];
573 Utils->DoOneToOne(prefix,"PUSH",params,u->server);
578 bool TreeSocket::HandleSetTime(const std::string &prefix, std::deque<std::string> ¶ms)
580 if (!params.size() || !Utils->EnableTimeSync)
585 if ((params.size() == 2) && (params[1] == "FORCE"))
588 time_t rts = atoi(params[0].c_str());
589 time_t us = Instance->Time(true);
593 Utils->DoOneToAllButSender(prefix, "TIMESET", params, prefix);
595 else if (force || (rts < us))
597 int old = Instance->SetTimeDelta(rts - us);
598 Instance->Log(DEBUG, "%s TS (diff %d) from %s applied (old delta was %d)", (force) ? "Forced" : "Lower", rts - us, prefix.c_str(), old);
600 Utils->DoOneToAllButSender(prefix, "TIMESET", params, prefix);
604 Instance->Log(DEBUG, "Higher TS (diff %d) from %s overridden", us - rts, prefix.c_str());
606 std::deque<std::string> oparams;
607 oparams.push_back(ConvToStr(us));
609 Utils->DoOneToMany(prefix, "TIMESET", oparams);
615 bool TreeSocket::Time(const std::string &prefix, std::deque<std::string> ¶ms)
617 // :source.server TIME remote.server sendernick
618 // :remote.server TIME source.server sendernick TS
619 if (params.size() == 2)
621 // someone querying our time?
622 if (this->Instance->Config->ServerName == params[0])
624 userrec* u = this->Instance->FindNick(params[1]);
627 params.push_back(ConvToStr(Instance->Time(false)));
629 Utils->DoOneToOne(this->Instance->Config->ServerName,"TIME",params,params[0]);
634 // not us, pass it on
635 userrec* u = this->Instance->FindNick(params[1]);
637 Utils->DoOneToOne(prefix,"TIME",params,params[0]);
640 else if (params.size() == 3)
642 // a response to a previous TIME
643 userrec* u = this->Instance->FindNick(params[1]);
644 if ((u) && (IS_LOCAL(u)))
646 time_t rawtime = atol(params[2].c_str());
647 struct tm * timeinfo;
648 timeinfo = localtime(&rawtime);
650 snprintf(tms,26,"%s",asctime(timeinfo));
652 u->WriteServ("391 %s %s :%s",u->nick,prefix.c_str(),tms);
657 Utils->DoOneToOne(prefix,"TIME",params,u->server);
663 bool TreeSocket::LocalPing(const std::string &prefix, std::deque<std::string> ¶ms)
665 if (params.size() < 1)
667 if (params.size() == 1)
669 std::string stufftobounce = params[0];
670 this->WriteLine(std::string(":")+this->Instance->Config->ServerName+" PONG "+stufftobounce);
675 std::string forwardto = params[1];
676 if (forwardto == this->Instance->Config->ServerName)
678 // this is a ping for us, send back PONG to the requesting server
679 params[1] = params[0];
680 params[0] = forwardto;
681 Utils->DoOneToOne(forwardto,"PONG",params,params[1]);
685 // not for us, pass it on :)
686 Utils->DoOneToOne(prefix,"PING",params,forwardto);
692 bool TreeSocket::RemoveStatus(const std::string &prefix, std::deque<std::string> ¶ms)
694 if (params.size() < 1)
696 chanrec* c = Instance->FindChan(params[0]);
699 irc::modestacker modestack(false);
700 CUList *ulist = c->GetUsers();
702 std::deque<std::string> stackresult;
704 for (CUList::iterator i = ulist->begin(); i != ulist->end(); i++)
706 std::string modesequence = Instance->Modes->ModeString(i->second, c);
707 if (modesequence.length())
709 irc::spacesepstream sep(modesequence);
710 std::string modeletters = sep.GetToken();
711 while (!modeletters.empty())
713 char mletter = *(modeletters.begin());
714 modestack.Push(mletter,sep.GetToken());
715 modeletters.erase(modeletters.begin());
720 while (modestack.GetStackedLine(stackresult))
722 stackresult.push_front(ConvToStr(c->age));
723 stackresult.push_front(c->name);
724 Utils->DoOneToMany(Instance->Config->ServerName, "FMODE", stackresult);
725 stackresult.erase(stackresult.begin() + 1);
726 for (size_t z = 0; z < stackresult.size(); z++)
728 y[z] = stackresult[z].c_str();
730 userrec* n = new userrec(Instance);
731 n->SetFd(FD_MAGIC_NUMBER);
732 Instance->SendMode(y, stackresult.size(), n);
739 bool TreeSocket::RemoteServer(const std::string &prefix, std::deque<std::string> ¶ms)
741 if (params.size() < 4)
743 std::string servername = params[0];
744 std::string password = params[1];
745 // hopcount is not used for a remote server, we calculate this ourselves
746 std::string description = params[3];
747 TreeServer* ParentOfThis = Utils->FindServer(prefix);
750 this->WriteLine("ERROR :Protocol error - Introduced remote server from unknown server "+prefix);
753 TreeServer* CheckDupe = Utils->FindServer(servername);
756 this->WriteLine("ERROR :Server "+servername+" already exists!");
757 this->Instance->SNO->WriteToSnoMask('l',"Server connection from \2"+servername+"\2 denied, already exists");
760 TreeServer* Node = new TreeServer(this->Utils,this->Instance,servername,description,ParentOfThis,NULL);
761 ParentOfThis->AddChild(Node);
762 params[3] = ":" + params[3];
763 Utils->DoOneToAllButSender(prefix,"SERVER",params,prefix);
764 this->Instance->SNO->WriteToSnoMask('l',"Server \002"+prefix+"\002 introduced server \002"+servername+"\002 ("+description+")");
768 bool TreeSocket::Outbound_Reply_Server(std::deque<std::string> ¶ms)
770 if (params.size() < 4)
773 irc::string servername = params[0].c_str();
774 std::string sname = params[0];
775 std::string password = params[1];
776 int hops = atoi(params[2].c_str());
780 this->WriteLine("ERROR :Server too far away for authentication");
781 this->Instance->SNO->WriteToSnoMask('l',"Server connection from \2"+sname+"\2 denied, server is too far away for authentication");
784 std::string description = params[3];
785 for (std::vector<Link>::iterator x = Utils->LinkBlocks.begin(); x < Utils->LinkBlocks.end(); x++)
787 if ((x->Name == servername) && (x->RecvPass == password))
789 TreeServer* CheckDupe = Utils->FindServer(sname);
792 this->WriteLine("ERROR :Server "+sname+" already exists on server "+CheckDupe->GetParent()->GetName()+"!");
793 this->Instance->SNO->WriteToSnoMask('l',"Server connection from \2"+sname+"\2 denied, already exists on server "+CheckDupe->GetParent()->GetName());
796 // Begin the sync here. this kickstarts the
797 // other side, waiting in WAIT_AUTH_2 state,
798 // into starting their burst, as it shows
800 this->LinkState = CONNECTED;
801 // we should add the details of this server now
802 // to the servers tree, as a child of the root
804 TreeServer* Node = new TreeServer(this->Utils,this->Instance,sname,description,Utils->TreeRoot,this);
805 Utils->TreeRoot->AddChild(Node);
806 params[3] = ":" + params[3];
807 Utils->DoOneToAllButSender(Utils->TreeRoot->GetName(),"SERVER",params,sname);
808 this->bursting = true;
813 this->WriteLine("ERROR :Invalid credentials");
814 this->Instance->SNO->WriteToSnoMask('l',"Server connection from \2"+sname+"\2 denied, invalid link credentials");
818 bool TreeSocket::Inbound_Server(std::deque<std::string> ¶ms)
820 if (params.size() < 4)
822 irc::string servername = params[0].c_str();
823 std::string sname = params[0];
824 std::string password = params[1];
825 int hops = atoi(params[2].c_str());
829 this->WriteLine("ERROR :Server too far away for authentication");
830 this->Instance->SNO->WriteToSnoMask('l',"Server connection from \2"+sname+"\2 denied, server is too far away for authentication");
833 std::string description = params[3];
834 for (std::vector<Link>::iterator x = Utils->LinkBlocks.begin(); x < Utils->LinkBlocks.end(); x++)
836 if ((x->Name == servername) && (x->RecvPass == password))
838 TreeServer* CheckDupe = Utils->FindServer(sname);
841 this->WriteLine("ERROR :Server "+sname+" already exists on server "+CheckDupe->GetParent()->GetName()+"!");
842 this->Instance->SNO->WriteToSnoMask('l',"Server connection from \2"+sname+"\2 denied, already exists on server "+CheckDupe->GetParent()->GetName());
845 this->Instance->SNO->WriteToSnoMask('l',"Verified incoming server connection from \002"+sname+"\002["+(x->HiddenFromStats ? "<hidden>" : this->GetIP())+"] ("+description+")");
848 std::string name = InspSocketNameRequest((Module*)Utils->Creator, this->Hook).Send();
849 this->Instance->SNO->WriteToSnoMask('l',"Connection from \2"+sname+"\2["+(x->HiddenFromStats ? "<hidden>" : this->GetIP())+"] using transport \2"+name+"\2");
852 this->InboundServerName = sname;
853 this->InboundDescription = description;
854 // this is good. Send our details: Our server name and description and hopcount of 0,
855 // along with the sendpass from this block.
856 this->WriteLine(std::string("SERVER ")+this->Instance->Config->ServerName+" "+x->SendPass+" 0 :"+this->Instance->Config->ServerDesc);
857 // move to the next state, we are now waiting for THEM.
858 this->LinkState = WAIT_AUTH_2;
862 this->WriteLine("ERROR :Invalid credentials");
863 this->Instance->SNO->WriteToSnoMask('l',"Server connection from \2"+sname+"\2 denied, invalid link credentials");
867 void TreeSocket::Split(const std::string &line, std::deque<std::string> &n)
870 irc::tokenstream tokens(line);
872 while ((param = tokens.GetToken()) != "")
877 bool TreeSocket::ProcessLine(std::string &line)
879 std::deque<std::string> params;
883 line = line.substr(0, line.find_first_of("\r\n"));
888 Instance->Log(DEBUG, "<- %s", line.c_str());
890 this->Split(line.c_str(),params);
892 if ((params[0][0] == ':') && (params.size() > 1))
894 prefix = params[0].substr(1);
897 command = params[0].c_str();
899 switch (this->LinkState)
904 // Waiting for SERVER command from remote server. Server initiating
905 // the connection sends the first SERVER command, listening server
906 // replies with theirs if its happy, then if the initiator is happy,
907 // it starts to send its net sync, which starts the merge, otherwise
908 // it sends an ERROR.
909 if (command == "PASS")
911 /* Silently ignored */
913 else if (command == "SERVER")
915 return this->Inbound_Server(params);
917 else if (command == "ERROR")
919 return this->Error(params);
921 else if (command == "USER")
923 this->WriteLine("ERROR :Client connections to this port are prohibited.");
926 else if (command == "CAPAB")
928 return this->Capab(params);
930 else if ((command == "U") || (command == "S"))
932 this->WriteLine("ERROR :Cannot use the old-style mesh linking protocol with m_spanningtree.so!");
937 std::string error("ERROR :Invalid command in negotiation phase: ");
938 error.append(command.c_str());
939 this->WriteLine(error);
944 // Waiting for start of other side's netmerge to say they liked our
946 if (command == "SERVER")
948 // cant do this, they sent it to us in the WAIT_AUTH_1 state!
952 else if ((command == "U") || (command == "S"))
954 this->WriteLine("ERROR :Cannot use the old-style mesh linking protocol with m_spanningtree.so!");
957 else if (command == "BURST")
959 if (params.size() && Utils->EnableTimeSync)
961 /* If a time stamp is provided, apply synchronization */
963 time_t them = atoi(params[0].c_str());
964 time_t us = Instance->Time(true);
965 int delta = them - us;
966 if ((params.size() == 2) && (params[1] == "FORCE"))
968 if ((delta < -600) || (delta > 600))
970 this->Instance->SNO->WriteToSnoMask('l',"\2ERROR\2: Your clocks are out by %d seconds (this is more than ten minutes). Link aborted, \2PLEASE SYNC YOUR CLOCKS!\2",abs(delta));
971 this->WriteLine("ERROR :Your clocks are out by "+ConvToStr(abs(delta))+" seconds (this is more than ten minutes). Link aborted, PLEASE SYNC YOUR CLOCKS!");
975 if (force || (us > them))
977 this->Instance->SetTimeDelta(them - us);
978 // Send this new timestamp to any other servers
979 Utils->DoOneToMany(Utils->TreeRoot->GetName(), "TIMESET", params);
983 // Override the timestamp
984 this->WriteLine(":" + Utils->TreeRoot->GetName() + " TIMESET " + ConvToStr(us));
987 this->LinkState = CONNECTED;
988 Node = new TreeServer(this->Utils,this->Instance,InboundServerName,InboundDescription,Utils->TreeRoot,this);
989 Utils->TreeRoot->AddChild(Node);
991 params.push_back(InboundServerName);
992 params.push_back("*");
993 params.push_back("1");
994 params.push_back(":"+InboundDescription);
995 Utils->DoOneToAllButSender(Utils->TreeRoot->GetName(),"SERVER",params,InboundServerName);
996 this->bursting = true;
999 else if (command == "ERROR")
1001 return this->Error(params);
1003 else if (command == "CAPAB")
1005 return this->Capab(params);
1010 this->WriteLine("ERROR :Internal error -- listening socket accepted its own descriptor!!!");
1014 if (command == "SERVER")
1016 // another server we connected to, which was in WAIT_AUTH_1 state,
1017 // has just sent us their credentials. If we get this far, theyre
1018 // happy with OUR credentials, and they are now in WAIT_AUTH_2 state.
1019 // if we're happy with this, we should send our netburst which
1020 // kickstarts the merge.
1021 return this->Outbound_Reply_Server(params);
1023 else if (command == "ERROR")
1025 return this->Error(params);
1029 // This is the 'authenticated' state, when all passwords
1030 // have been exchanged and anything past this point is taken
1035 std::string direction = prefix;
1036 userrec* t = this->Instance->FindNick(prefix);
1039 direction = t->server;
1041 TreeServer* route_back_again = Utils->BestRouteTo(direction);
1042 if ((!route_back_again) || (route_back_again->GetSocket() != this))
1044 if (route_back_again)
1045 Instance->Log(DEBUG,"Protocol violation: Fake direction in command '%s' from connection '%s'",line.c_str(),this->GetName().c_str());
1049 * When there is activity on the socket, reset the ping counter so
1050 * that we're not wasting bandwidth pinging an active server.
1052 route_back_again->SetNextPingTime(time(NULL) + 60);
1053 route_back_again->SetPingFlag();
1056 if (command == "SVSMODE")
1058 /* Services expects us to implement
1059 * SVSMODE. In inspircd its the same as
1064 std::string target = "";
1065 /* Yes, know, this is a mess. Its reasonably fast though as we're
1066 * working with std::string here.
1068 if ((command == "NICK") && (params.size() > 1))
1070 return this->IntroduceClient(prefix,params);
1072 else if (command == "FJOIN")
1074 return this->ForceJoin(prefix,params);
1076 else if (command == "STATS")
1078 return this->Stats(prefix, params);
1080 else if (command == "MOTD")
1082 return this->Motd(prefix, params);
1084 else if (command == "ADMIN")
1086 return this->Admin(prefix, params);
1088 else if (command == "SERVER")
1090 return this->RemoteServer(prefix,params);
1092 else if (command == "ERROR")
1094 return this->Error(params);
1096 else if (command == "OPERTYPE")
1098 return this->OperType(prefix,params);
1100 else if (command == "FMODE")
1102 return this->ForceMode(prefix,params);
1104 else if (command == "KILL")
1106 return this->RemoteKill(prefix,params);
1108 else if (command == "FTOPIC")
1110 return this->ForceTopic(prefix,params);
1112 else if (command == "REHASH")
1114 return this->RemoteRehash(prefix,params);
1116 else if (command == "METADATA")
1118 return this->MetaData(prefix,params);
1120 else if (command == "REMSTATUS")
1122 return this->RemoveStatus(prefix,params);
1124 else if (command == "PING")
1127 * We just got a ping from a server that's bursting.
1128 * This can't be right, so set them to not bursting, and
1129 * apply their lines.
1133 this->bursting = false;
1134 Instance->XLines->apply_lines(Utils->lines_to_apply);
1135 Utils->lines_to_apply = 0;
1139 prefix = this->GetName();
1141 return this->LocalPing(prefix,params);
1143 else if (command == "PONG")
1146 * We just got a pong from a server that's bursting.
1147 * This can't be right, so set them to not bursting, and
1148 * apply their lines.
1152 this->bursting = false;
1153 Instance->XLines->apply_lines(Utils->lines_to_apply);
1154 Utils->lines_to_apply = 0;
1158 prefix = this->GetName();
1160 return this->LocalPong(prefix,params);
1162 else if (command == "VERSION")
1164 return this->ServerVersion(prefix,params);
1166 else if (command == "FHOST")
1168 return this->ChangeHost(prefix,params);
1170 else if (command == "FNAME")
1172 return this->ChangeName(prefix,params);
1174 else if (command == "ADDLINE")
1176 return this->AddLine(prefix,params);
1178 else if (command == "SVSNICK")
1182 prefix = this->GetName();
1184 return this->ForceNick(prefix,params);
1186 else if (command == "RSQUIT")
1188 return this->RemoteSquit(prefix, params);
1190 else if (command == "IDLE")
1192 return this->Whois(prefix,params);
1194 else if (command == "PUSH")
1196 return this->Push(prefix,params);
1198 else if (command == "TIMESET")
1200 return this->HandleSetTime(prefix, params);
1202 else if (command == "TIME")
1204 return this->Time(prefix,params);
1206 else if ((command == "KICK") && (Utils->IsServer(prefix)))
1208 std::string sourceserv = this->myhost;
1209 if (params.size() == 3)
1211 userrec* user = this->Instance->FindNick(params[1]);
1212 chanrec* chan = this->Instance->FindChan(params[0]);
1215 if (!chan->ServerKickUser(user, params[2].c_str(), false))
1216 /* Yikes, the channels gone! */
1220 if (this->InboundServerName != "")
1222 sourceserv = this->InboundServerName;
1224 return Utils->DoOneToAllButSenderRaw(line,sourceserv,prefix,command,params);
1226 else if (command == "SVSJOIN")
1230 prefix = this->GetName();
1232 return this->ServiceJoin(prefix,params);
1234 else if (command == "SQUIT")
1236 if (params.size() == 2)
1238 this->Squit(Utils->FindServer(params[0]),params[1]);
1242 else if (command == "OPERNOTICE")
1244 std::string sourceserv = this->myhost;
1245 if (this->InboundServerName != "")
1246 sourceserv = this->InboundServerName;
1247 if (params.size() >= 1)
1248 Instance->WriteOpers("*** From " + sourceserv + ": " + params[0]);
1249 return Utils->DoOneToAllButSenderRaw(line, sourceserv, prefix, command, params);
1251 else if (command == "MODENOTICE")
1253 std::string sourceserv = this->myhost;
1254 if (this->InboundServerName != "")
1255 sourceserv = this->InboundServerName;
1256 if (params.size() >= 2)
1258 Instance->WriteMode(params[0].c_str(), WM_AND, "*** From %s: %s", sourceserv.c_str(), params[1].c_str());
1260 return Utils->DoOneToAllButSenderRaw(line, sourceserv, prefix, command, params);
1262 else if (command == "SNONOTICE")
1264 std::string sourceserv = this->myhost;
1265 if (this->InboundServerName != "")
1266 sourceserv = this->InboundServerName;
1267 if (params.size() >= 2)
1269 Instance->SNO->WriteToSnoMask(*(params[0].c_str()), "From " + sourceserv + ": "+ params[1]);
1271 return Utils->DoOneToAllButSenderRaw(line, sourceserv, prefix, command, params);
1273 else if (command == "ENDBURST")
1275 this->bursting = false;
1276 Instance->XLines->apply_lines(Utils->lines_to_apply);
1277 Utils->lines_to_apply = 0;
1278 std::string sourceserv = this->myhost;
1279 if (this->InboundServerName != "")
1281 sourceserv = this->InboundServerName;
1283 this->Instance->SNO->WriteToSnoMask('l',"Received end of netburst from \2%s\2",sourceserv.c_str());
1285 Event rmode((char*)sourceserv.c_str(), (Module*)Utils->Creator, "new_server");
1286 rmode.Send(Instance);
1292 // not a special inter-server command.
1293 // Emulate the actual user doing the command,
1294 // this saves us having a huge ugly parser.
1295 userrec* who = this->Instance->FindNick(prefix);
1296 std::string sourceserv = this->myhost;
1297 if (this->InboundServerName != "")
1299 sourceserv = this->InboundServerName;
1301 if ((!who) && (command == "MODE"))
1303 if (Utils->IsServer(prefix))
1305 const char* modelist[127];
1306 for (size_t i = 0; i < params.size(); i++)
1307 modelist[i] = params[i].c_str();
1308 userrec* fake = new userrec(Instance);
1309 fake->SetFd(FD_MAGIC_NUMBER);
1310 this->Instance->SendMode(modelist, params.size(), fake);
1313 /* Hot potato! pass it on! */
1314 return Utils->DoOneToAllButSenderRaw(line,sourceserv,prefix,command,params);
1319 if ((command == "NICK") && (params.size() > 0))
1321 /* On nick messages, check that the nick doesnt
1322 * already exist here. If it does, kill their copy,
1325 userrec* x = this->Instance->FindNick(params[0]);
1326 if ((x) && (x != who))
1328 std::deque<std::string> p;
1329 p.push_back(params[0]);
1330 p.push_back("Nickname collision ("+prefix+" -> "+params[0]+")");
1331 Utils->DoOneToMany(this->Instance->Config->ServerName,"KILL",p);
1333 p.push_back(prefix);
1334 p.push_back("Nickname collision");
1335 Utils->DoOneToMany(this->Instance->Config->ServerName,"KILL",p);
1336 userrec::QuitUser(this->Instance,x,"Nickname collision ("+prefix+" -> "+params[0]+")");
1337 userrec* y = this->Instance->FindNick(prefix);
1340 userrec::QuitUser(this->Instance,y,"Nickname collision");
1342 return Utils->DoOneToAllButSenderRaw(line,sourceserv,prefix,command,params);
1346 target = who->server;
1347 const char* strparams[127];
1348 for (unsigned int q = 0; q < params.size(); q++)
1350 strparams[q] = params[q].c_str();
1352 switch (this->Instance->CallCommandHandler(command.c_str(), strparams, params.size(), who))
1355 this->WriteLine("ERROR :Unrecognised command '"+std::string(command.c_str())+"' -- possibly loaded mismatched modules");
1362 /* CMD_SUCCESS and CMD_USER_DELETED fall through here */
1368 // its not a user. Its either a server, or somethings screwed up.
1369 if (Utils->IsServer(prefix))
1370 target = this->Instance->Config->ServerName;
1374 return Utils->DoOneToAllButSenderRaw(line,sourceserv,prefix,command,params);
1383 std::string TreeSocket::GetName()
1385 std::string sourceserv = this->myhost;
1386 if (this->InboundServerName != "")
1388 sourceserv = this->InboundServerName;
1393 void TreeSocket::OnTimeout()
1395 if (this->LinkState == CONNECTING)
1397 this->Instance->SNO->WriteToSnoMask('l',"CONNECT: Connection to \002"+myhost+"\002 timed out.");
1398 Link* MyLink = Utils->FindLink(myhost);
1400 Utils->DoFailOver(MyLink);
1404 void TreeSocket::OnClose()
1406 // Connection closed.
1407 // If the connection is fully up (state CONNECTED)
1408 // then propogate a netsplit to all peers.
1409 std::string quitserver = this->myhost;
1410 if (this->InboundServerName != "")
1412 quitserver = this->InboundServerName;
1414 TreeServer* s = Utils->FindServer(quitserver);
1417 Squit(s,"Remote host closed the connection");
1420 if (quitserver != "")
1421 this->Instance->SNO->WriteToSnoMask('l',"Connection to '\2%s\2' failed.",quitserver.c_str());
1424 int TreeSocket::OnIncomingConnection(int newsock, char* ip)
1426 /* To prevent anyone from attempting to flood opers/DDoS by connecting to the server port,
1427 * or discovering if this port is the server port, we don't allow connections from any
1428 * IPs for which we don't have a link block.
1432 found = (std::find(Utils->ValidIPs.begin(), Utils->ValidIPs.end(), ip) != Utils->ValidIPs.end());
1435 for (vector<std::string>::iterator i = Utils->ValidIPs.begin(); i != Utils->ValidIPs.end(); i++)
1436 if (irc::sockets::MatchCIDR(ip, (*i).c_str()))
1441 this->Instance->SNO->WriteToSnoMask('l',"Server connection from %s denied (no link blocks with that IP address)", ip);
1447 TreeSocket* s = new TreeSocket(this->Utils, this->Instance, newsock, ip, this->Hook);
1448 s = s; /* Whinge whinge whinge, thats all GCC ever does. */