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() < 2)
367 params.push_back("");
368 TreeServer* ServerSource = Utils->FindServer(prefix);
371 if (params[0] == "*")
373 FOREACH_MOD_I(this->Instance,I_OnDecodeMetaData,OnDecodeMetaData(TYPE_OTHER,NULL,params[1],params[2]));
375 else if (*(params[0].c_str()) == '#')
377 chanrec* c = this->Instance->FindChan(params[0]);
380 FOREACH_MOD_I(this->Instance,I_OnDecodeMetaData,OnDecodeMetaData(TYPE_CHANNEL,c,params[1],params[2]));
383 else if (*(params[0].c_str()) != '#')
385 userrec* u = this->Instance->FindNick(params[0]);
388 FOREACH_MOD_I(this->Instance,I_OnDecodeMetaData,OnDecodeMetaData(TYPE_USER,u,params[1],params[2]));
393 params[2] = ":" + params[2];
394 Utils->DoOneToAllButSender(prefix,"METADATA",params,prefix);
398 bool TreeSocket::ServerVersion(const std::string &prefix, std::deque<std::string> ¶ms)
400 if (params.size() < 1)
403 TreeServer* ServerSource = Utils->FindServer(prefix);
407 ServerSource->SetVersion(params[0]);
409 params[0] = ":" + params[0];
410 Utils->DoOneToAllButSender(prefix,"VERSION",params,prefix);
414 bool TreeSocket::ChangeHost(const std::string &prefix, std::deque<std::string> ¶ms)
416 if (params.size() < 1)
418 userrec* u = this->Instance->FindNick(prefix);
422 u->ChangeDisplayedHost(params[0].c_str());
423 Utils->DoOneToAllButSender(prefix,"FHOST",params,u->server);
428 bool TreeSocket::AddLine(const std::string &prefix, std::deque<std::string> ¶ms)
430 if (params.size() < 6)
432 bool propogate = false;
434 Utils->lines_to_apply = 0;
435 switch (*(params[0].c_str()))
438 propogate = Instance->XLines->add_zline(atoi(params[4].c_str()), params[2].c_str(), params[5].c_str(), params[1].c_str());
439 Instance->XLines->zline_set_creation_time(params[1].c_str(), atoi(params[3].c_str()));
441 Utils->lines_to_apply |= APPLY_ZLINES;
444 propogate = Instance->XLines->add_qline(atoi(params[4].c_str()), params[2].c_str(), params[5].c_str(), params[1].c_str());
445 Instance->XLines->qline_set_creation_time(params[1].c_str(), atoi(params[3].c_str()));
447 Utils->lines_to_apply |= APPLY_QLINES;
450 propogate = Instance->XLines->add_eline(atoi(params[4].c_str()), params[2].c_str(), params[5].c_str(), params[1].c_str());
451 Instance->XLines->eline_set_creation_time(params[1].c_str(), atoi(params[3].c_str()));
454 propogate = Instance->XLines->add_gline(atoi(params[4].c_str()), params[2].c_str(), params[5].c_str(), params[1].c_str());
455 Instance->XLines->gline_set_creation_time(params[1].c_str(), atoi(params[3].c_str()));
457 Utils->lines_to_apply |= APPLY_GLINES;
460 propogate = Instance->XLines->add_kline(atoi(params[4].c_str()), params[2].c_str(), params[5].c_str(), params[1].c_str());
462 Utils->lines_to_apply |= APPLY_KLINES;
465 /* Just in case... */
466 this->Instance->SNO->WriteToSnoMask('x',"\2WARNING\2: Invalid xline type '"+params[0]+"' sent by server "+prefix+", ignored!");
470 /* Send it on its way */
473 if (atoi(params[4].c_str()))
475 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());
479 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());
481 params[5] = ":" + params[5];
482 Utils->DoOneToAllButSender(prefix,"ADDLINE",params,prefix);
486 Instance->XLines->apply_lines(Utils->lines_to_apply);
487 Utils->lines_to_apply = 0;
492 bool TreeSocket::ChangeName(const std::string &prefix, std::deque<std::string> ¶ms)
494 if (params.size() < 1)
496 userrec* u = this->Instance->FindNick(prefix);
499 u->ChangeName(params[0].c_str());
500 params[0] = ":" + params[0];
501 Utils->DoOneToAllButSender(prefix,"FNAME",params,u->server);
506 bool TreeSocket::Whois(const std::string &prefix, std::deque<std::string> ¶ms)
508 if (params.size() < 1)
510 userrec* u = this->Instance->FindNick(prefix);
513 // an incoming request
514 if (params.size() == 1)
516 userrec* x = this->Instance->FindNick(params[0]);
517 if ((x) && (IS_LOCAL(x)))
519 userrec* x = this->Instance->FindNick(params[0]);
522 snprintf(signon,MAXBUF,"%lu",(unsigned long)x->signon);
523 snprintf(idle,MAXBUF,"%lu",(unsigned long)abs((x->idle_lastmsg)-Instance->Time(true)));
524 std::deque<std::string> par;
525 par.push_back(prefix);
526 par.push_back(signon);
528 // ours, we're done, pass it BACK
529 Utils->DoOneToOne(params[0],"IDLE",par,u->server);
533 // not ours pass it on
534 Utils->DoOneToOne(prefix,"IDLE",params,x->server);
537 else if (params.size() == 3)
539 std::string who_did_the_whois = params[0];
540 userrec* who_to_send_to = this->Instance->FindNick(who_did_the_whois);
541 if ((who_to_send_to) && (IS_LOCAL(who_to_send_to)))
543 // an incoming reply to a whois we sent out
544 std::string nick_whoised = prefix;
545 unsigned long signon = atoi(params[1].c_str());
546 unsigned long idle = atoi(params[2].c_str());
547 if ((who_to_send_to) && (IS_LOCAL(who_to_send_to)))
548 do_whois(this->Instance,who_to_send_to,u,signon,idle,nick_whoised.c_str());
552 // not ours, pass it on
553 Utils->DoOneToOne(prefix,"IDLE",params,who_to_send_to->server);
560 bool TreeSocket::Push(const std::string &prefix, std::deque<std::string> ¶ms)
562 if (params.size() < 2)
564 userrec* u = this->Instance->FindNick(params[0]);
573 // continue the raw onwards
574 params[1] = ":" + params[1];
575 Utils->DoOneToOne(prefix,"PUSH",params,u->server);
580 bool TreeSocket::HandleSetTime(const std::string &prefix, std::deque<std::string> ¶ms)
582 if (!params.size() || !Utils->EnableTimeSync)
587 if ((params.size() == 2) && (params[1] == "FORCE"))
590 time_t rts = atoi(params[0].c_str());
591 time_t us = Instance->Time(true);
595 Utils->DoOneToAllButSender(prefix, "TIMESET", params, prefix);
597 else if (force || (rts < us))
599 int old = Instance->SetTimeDelta(rts - us);
600 Instance->Log(DEBUG, "%s TS (diff %d) from %s applied (old delta was %d)", (force) ? "Forced" : "Lower", rts - us, prefix.c_str(), old);
602 Utils->DoOneToAllButSender(prefix, "TIMESET", params, prefix);
606 Instance->Log(DEBUG, "Higher TS (diff %d) from %s overridden", us - rts, prefix.c_str());
608 std::deque<std::string> oparams;
609 oparams.push_back(ConvToStr(us));
611 Utils->DoOneToMany(prefix, "TIMESET", oparams);
617 bool TreeSocket::Time(const std::string &prefix, std::deque<std::string> ¶ms)
619 // :source.server TIME remote.server sendernick
620 // :remote.server TIME source.server sendernick TS
621 if (params.size() == 2)
623 // someone querying our time?
624 if (this->Instance->Config->ServerName == params[0])
626 userrec* u = this->Instance->FindNick(params[1]);
629 params.push_back(ConvToStr(Instance->Time(false)));
631 Utils->DoOneToOne(this->Instance->Config->ServerName,"TIME",params,params[0]);
636 // not us, pass it on
637 userrec* u = this->Instance->FindNick(params[1]);
639 Utils->DoOneToOne(prefix,"TIME",params,params[0]);
642 else if (params.size() == 3)
644 // a response to a previous TIME
645 userrec* u = this->Instance->FindNick(params[1]);
646 if ((u) && (IS_LOCAL(u)))
648 time_t rawtime = atol(params[2].c_str());
649 struct tm * timeinfo;
650 timeinfo = localtime(&rawtime);
652 snprintf(tms,26,"%s",asctime(timeinfo));
654 u->WriteServ("391 %s %s :%s",u->nick,prefix.c_str(),tms);
659 Utils->DoOneToOne(prefix,"TIME",params,u->server);
665 bool TreeSocket::LocalPing(const std::string &prefix, std::deque<std::string> ¶ms)
667 if (params.size() < 1)
669 if (params.size() == 1)
671 std::string stufftobounce = params[0];
672 this->WriteLine(std::string(":")+this->Instance->Config->ServerName+" PONG "+stufftobounce);
677 std::string forwardto = params[1];
678 if (forwardto == this->Instance->Config->ServerName)
680 // this is a ping for us, send back PONG to the requesting server
681 params[1] = params[0];
682 params[0] = forwardto;
683 Utils->DoOneToOne(forwardto,"PONG",params,params[1]);
687 // not for us, pass it on :)
688 Utils->DoOneToOne(prefix,"PING",params,forwardto);
694 /** TODO: This creates a total mess of output and needs to really use irc::modestacker.
696 bool TreeSocket::RemoveStatus(const std::string &prefix, std::deque<std::string> ¶ms)
698 if (params.size() < 1)
700 chanrec* c = Instance->FindChan(params[0]);
703 for (char modeletter = 'A'; modeletter <= 'z'; modeletter++)
705 ModeHandler* mh = Instance->Modes->FindMode(modeletter, MODETYPE_CHANNEL);
713 bool TreeSocket::RemoteServer(const std::string &prefix, std::deque<std::string> ¶ms)
715 if (params.size() < 4)
717 std::string servername = params[0];
718 std::string password = params[1];
719 // hopcount is not used for a remote server, we calculate this ourselves
720 std::string description = params[3];
721 TreeServer* ParentOfThis = Utils->FindServer(prefix);
724 this->WriteLine("ERROR :Protocol error - Introduced remote server from unknown server "+prefix);
727 TreeServer* CheckDupe = Utils->FindServer(servername);
730 this->WriteLine("ERROR :Server "+servername+" already exists!");
731 this->Instance->SNO->WriteToSnoMask('l',"Server connection from \2"+servername+"\2 denied, already exists");
734 TreeServer* Node = new TreeServer(this->Utils,this->Instance,servername,description,ParentOfThis,NULL);
735 ParentOfThis->AddChild(Node);
736 params[3] = ":" + params[3];
737 Utils->DoOneToAllButSender(prefix,"SERVER",params,prefix);
738 this->Instance->SNO->WriteToSnoMask('l',"Server \002"+prefix+"\002 introduced server \002"+servername+"\002 ("+description+")");
742 bool TreeSocket::Outbound_Reply_Server(std::deque<std::string> ¶ms)
744 if (params.size() < 4)
747 irc::string servername = params[0].c_str();
748 std::string sname = params[0];
749 std::string password = params[1];
750 int hops = atoi(params[2].c_str());
754 this->WriteLine("ERROR :Server too far away for authentication");
755 this->Instance->SNO->WriteToSnoMask('l',"Server connection from \2"+sname+"\2 denied, server is too far away for authentication");
758 std::string description = params[3];
759 for (std::vector<Link>::iterator x = Utils->LinkBlocks.begin(); x < Utils->LinkBlocks.end(); x++)
761 if ((x->Name == servername) && (x->RecvPass == password))
763 TreeServer* CheckDupe = Utils->FindServer(sname);
766 this->WriteLine("ERROR :Server "+sname+" already exists on server "+CheckDupe->GetParent()->GetName()+"!");
767 this->Instance->SNO->WriteToSnoMask('l',"Server connection from \2"+sname+"\2 denied, already exists on server "+CheckDupe->GetParent()->GetName());
770 // Begin the sync here. this kickstarts the
771 // other side, waiting in WAIT_AUTH_2 state,
772 // into starting their burst, as it shows
774 this->LinkState = CONNECTED;
775 // we should add the details of this server now
776 // to the servers tree, as a child of the root
778 TreeServer* Node = new TreeServer(this->Utils,this->Instance,sname,description,Utils->TreeRoot,this);
779 Utils->TreeRoot->AddChild(Node);
780 params[3] = ":" + params[3];
781 Utils->DoOneToAllButSender(Utils->TreeRoot->GetName(),"SERVER",params,sname);
782 this->bursting = true;
787 this->WriteLine("ERROR :Invalid credentials");
788 this->Instance->SNO->WriteToSnoMask('l',"Server connection from \2"+sname+"\2 denied, invalid link credentials");
792 bool TreeSocket::Inbound_Server(std::deque<std::string> ¶ms)
794 if (params.size() < 4)
796 irc::string servername = params[0].c_str();
797 std::string sname = params[0];
798 std::string password = params[1];
799 int hops = atoi(params[2].c_str());
803 this->WriteLine("ERROR :Server too far away for authentication");
804 this->Instance->SNO->WriteToSnoMask('l',"Server connection from \2"+sname+"\2 denied, server is too far away for authentication");
807 std::string description = params[3];
808 for (std::vector<Link>::iterator x = Utils->LinkBlocks.begin(); x < Utils->LinkBlocks.end(); x++)
810 if ((x->Name == servername) && (x->RecvPass == password))
812 TreeServer* CheckDupe = Utils->FindServer(sname);
815 this->WriteLine("ERROR :Server "+sname+" already exists on server "+CheckDupe->GetParent()->GetName()+"!");
816 this->Instance->SNO->WriteToSnoMask('l',"Server connection from \2"+sname+"\2 denied, already exists on server "+CheckDupe->GetParent()->GetName());
819 this->Instance->SNO->WriteToSnoMask('l',"Verified incoming server connection from \002"+sname+"\002["+(x->HiddenFromStats ? "<hidden>" : this->GetIP())+"] ("+description+")");
822 std::string name = InspSocketNameRequest((Module*)Utils->Creator, this->Hook).Send();
823 this->Instance->SNO->WriteToSnoMask('l',"Connection from \2"+sname+"\2["+(x->HiddenFromStats ? "<hidden>" : this->GetIP())+"] using transport \2"+name+"\2");
826 this->InboundServerName = sname;
827 this->InboundDescription = description;
828 // this is good. Send our details: Our server name and description and hopcount of 0,
829 // along with the sendpass from this block.
830 this->WriteLine(std::string("SERVER ")+this->Instance->Config->ServerName+" "+x->SendPass+" 0 :"+this->Instance->Config->ServerDesc);
831 // move to the next state, we are now waiting for THEM.
832 this->LinkState = WAIT_AUTH_2;
836 this->WriteLine("ERROR :Invalid credentials");
837 this->Instance->SNO->WriteToSnoMask('l',"Server connection from \2"+sname+"\2 denied, invalid link credentials");
841 void TreeSocket::Split(const std::string &line, std::deque<std::string> &n)
844 irc::tokenstream tokens(line);
846 while ((param = tokens.GetToken()) != "")
851 bool TreeSocket::ProcessLine(std::string &line)
853 std::deque<std::string> params;
857 line = line.substr(0, line.find_first_of("\r\n"));
862 Instance->Log(DEBUG, "<- %s", line.c_str());
864 this->Split(line.c_str(),params);
866 if ((params[0][0] == ':') && (params.size() > 1))
868 prefix = params[0].substr(1);
871 command = params[0].c_str();
873 switch (this->LinkState)
878 // Waiting for SERVER command from remote server. Server initiating
879 // the connection sends the first SERVER command, listening server
880 // replies with theirs if its happy, then if the initiator is happy,
881 // it starts to send its net sync, which starts the merge, otherwise
882 // it sends an ERROR.
883 if (command == "PASS")
885 /* Silently ignored */
887 else if (command == "SERVER")
889 return this->Inbound_Server(params);
891 else if (command == "ERROR")
893 return this->Error(params);
895 else if (command == "USER")
897 this->WriteLine("ERROR :Client connections to this port are prohibited.");
900 else if (command == "CAPAB")
902 return this->Capab(params);
904 else if ((command == "U") || (command == "S"))
906 this->WriteLine("ERROR :Cannot use the old-style mesh linking protocol with m_spanningtree.so!");
911 std::string error("ERROR :Invalid command in negotiation phase: ");
912 error.append(command.c_str());
913 this->WriteLine(error);
918 // Waiting for start of other side's netmerge to say they liked our
920 if (command == "SERVER")
922 // cant do this, they sent it to us in the WAIT_AUTH_1 state!
926 else if ((command == "U") || (command == "S"))
928 this->WriteLine("ERROR :Cannot use the old-style mesh linking protocol with m_spanningtree.so!");
931 else if (command == "BURST")
933 if (params.size() && Utils->EnableTimeSync)
935 /* If a time stamp is provided, apply synchronization */
937 time_t them = atoi(params[0].c_str());
938 time_t us = Instance->Time(false);
939 int delta = them - us;
940 if ((params.size() == 2) && (params[1] == "FORCE"))
942 if ((delta < -600) || (delta > 600))
944 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));
945 this->WriteLine("ERROR :Your clocks are out by "+ConvToStr(abs(delta))+" seconds (this is more than ten minutes). Link aborted, PLEASE SYNC YOUR CLOCKS!");
949 if (force || (us > them))
951 this->Instance->SetTimeDelta(them - us);
952 // Send this new timestamp to any other servers
953 Utils->DoOneToMany(Utils->TreeRoot->GetName(), "TIMESET", params);
957 // Override the timestamp
958 this->WriteLine(":" + Utils->TreeRoot->GetName() + " TIMESET " + ConvToStr(us));
961 this->LinkState = CONNECTED;
962 Node = new TreeServer(this->Utils,this->Instance,InboundServerName,InboundDescription,Utils->TreeRoot,this);
963 Utils->TreeRoot->AddChild(Node);
965 params.push_back(InboundServerName);
966 params.push_back("*");
967 params.push_back("1");
968 params.push_back(":"+InboundDescription);
969 Utils->DoOneToAllButSender(Utils->TreeRoot->GetName(),"SERVER",params,InboundServerName);
970 this->bursting = true;
973 else if (command == "ERROR")
975 return this->Error(params);
977 else if (command == "CAPAB")
979 return this->Capab(params);
984 this->WriteLine("ERROR :Internal error -- listening socket accepted its own descriptor!!!");
988 if (command == "SERVER")
990 // another server we connected to, which was in WAIT_AUTH_1 state,
991 // has just sent us their credentials. If we get this far, theyre
992 // happy with OUR credentials, and they are now in WAIT_AUTH_2 state.
993 // if we're happy with this, we should send our netburst which
994 // kickstarts the merge.
995 return this->Outbound_Reply_Server(params);
997 else if (command == "ERROR")
999 return this->Error(params);
1003 // This is the 'authenticated' state, when all passwords
1004 // have been exchanged and anything past this point is taken
1009 std::string direction = prefix;
1010 userrec* t = this->Instance->FindNick(prefix);
1013 direction = t->server;
1015 TreeServer* route_back_again = Utils->BestRouteTo(direction);
1016 if ((!route_back_again) || (route_back_again->GetSocket() != this))
1018 if (route_back_again)
1019 Instance->Log(DEBUG,"Protocol violation: Fake direction in command '%s' from connection '%s'",line.c_str(),this->GetName().c_str());
1023 * When there is activity on the socket, reset the ping counter so
1024 * that we're not wasting bandwidth pinging an active server.
1026 route_back_again->SetNextPingTime(time(NULL) + 60);
1027 route_back_again->SetPingFlag();
1030 if (command == "SVSMODE")
1032 /* Services expects us to implement
1033 * SVSMODE. In inspircd its the same as
1038 std::string target = "";
1039 /* Yes, know, this is a mess. Its reasonably fast though as we're
1040 * working with std::string here.
1042 if ((command == "NICK") && (params.size() > 1))
1044 return this->IntroduceClient(prefix,params);
1046 else if (command == "FJOIN")
1048 return this->ForceJoin(prefix,params);
1050 else if (command == "STATS")
1052 return this->Stats(prefix, params);
1054 else if (command == "MOTD")
1056 return this->Motd(prefix, params);
1058 else if (command == "ADMIN")
1060 return this->Admin(prefix, params);
1062 else if (command == "SERVER")
1064 return this->RemoteServer(prefix,params);
1066 else if (command == "ERROR")
1068 return this->Error(params);
1070 else if (command == "OPERTYPE")
1072 return this->OperType(prefix,params);
1074 else if (command == "FMODE")
1076 return this->ForceMode(prefix,params);
1078 else if (command == "KILL")
1080 return this->RemoteKill(prefix,params);
1082 else if (command == "FTOPIC")
1084 return this->ForceTopic(prefix,params);
1086 else if (command == "REHASH")
1088 return this->RemoteRehash(prefix,params);
1090 else if (command == "METADATA")
1092 return this->MetaData(prefix,params);
1094 else if (command == "REMSTATUS")
1096 return this->RemoveStatus(prefix,params);
1098 else if (command == "PING")
1101 * We just got a ping from a server that's bursting.
1102 * This can't be right, so set them to not bursting, and
1103 * apply their lines.
1107 this->bursting = false;
1108 Instance->XLines->apply_lines(Utils->lines_to_apply);
1109 Utils->lines_to_apply = 0;
1113 prefix = this->GetName();
1115 return this->LocalPing(prefix,params);
1117 else if (command == "PONG")
1120 * We just got a pong from a server that's bursting.
1121 * This can't be right, so set them to not bursting, and
1122 * apply their lines.
1126 this->bursting = false;
1127 Instance->XLines->apply_lines(Utils->lines_to_apply);
1128 Utils->lines_to_apply = 0;
1132 prefix = this->GetName();
1134 return this->LocalPong(prefix,params);
1136 else if (command == "VERSION")
1138 return this->ServerVersion(prefix,params);
1140 else if (command == "FHOST")
1142 return this->ChangeHost(prefix,params);
1144 else if (command == "FNAME")
1146 return this->ChangeName(prefix,params);
1148 else if (command == "ADDLINE")
1150 return this->AddLine(prefix,params);
1152 else if (command == "SVSNICK")
1156 prefix = this->GetName();
1158 return this->ForceNick(prefix,params);
1160 else if (command == "RSQUIT")
1162 return this->RemoteSquit(prefix, params);
1164 else if (command == "IDLE")
1166 return this->Whois(prefix,params);
1168 else if (command == "PUSH")
1170 return this->Push(prefix,params);
1172 else if (command == "TIMESET")
1174 return this->HandleSetTime(prefix, params);
1176 else if (command == "TIME")
1178 return this->Time(prefix,params);
1180 else if ((command == "KICK") && (Utils->IsServer(prefix)))
1182 std::string sourceserv = this->myhost;
1183 if (params.size() == 3)
1185 userrec* user = this->Instance->FindNick(params[1]);
1186 chanrec* chan = this->Instance->FindChan(params[0]);
1189 if (!chan->ServerKickUser(user, params[2].c_str(), false))
1190 /* Yikes, the channels gone! */
1194 if (this->InboundServerName != "")
1196 sourceserv = this->InboundServerName;
1198 return Utils->DoOneToAllButSenderRaw(line,sourceserv,prefix,command,params);
1200 else if (command == "SVSJOIN")
1204 prefix = this->GetName();
1206 return this->ServiceJoin(prefix,params);
1208 else if (command == "SQUIT")
1210 if (params.size() == 2)
1212 this->Squit(Utils->FindServer(params[0]),params[1]);
1216 else if (command == "OPERNOTICE")
1218 std::string sourceserv = this->myhost;
1219 if (this->InboundServerName != "")
1220 sourceserv = this->InboundServerName;
1221 if (params.size() >= 1)
1222 Instance->WriteOpers("*** From " + sourceserv + ": " + params[0]);
1223 return Utils->DoOneToAllButSenderRaw(line, sourceserv, prefix, command, params);
1225 else if (command == "MODENOTICE")
1227 std::string sourceserv = this->myhost;
1228 if (this->InboundServerName != "")
1229 sourceserv = this->InboundServerName;
1230 if (params.size() >= 2)
1232 Instance->WriteMode(params[0].c_str(), WM_AND, "*** From %s: %s", sourceserv.c_str(), params[1].c_str());
1234 return Utils->DoOneToAllButSenderRaw(line, sourceserv, prefix, command, params);
1236 else if (command == "SNONOTICE")
1238 std::string sourceserv = this->myhost;
1239 if (this->InboundServerName != "")
1240 sourceserv = this->InboundServerName;
1241 if (params.size() >= 2)
1243 Instance->SNO->WriteToSnoMask(*(params[0].c_str()), "From " + sourceserv + ": "+ params[1]);
1245 return Utils->DoOneToAllButSenderRaw(line, sourceserv, prefix, command, params);
1247 else if (command == "ENDBURST")
1249 this->bursting = false;
1250 Instance->XLines->apply_lines(Utils->lines_to_apply);
1251 Utils->lines_to_apply = 0;
1252 std::string sourceserv = this->myhost;
1253 if (this->InboundServerName != "")
1255 sourceserv = this->InboundServerName;
1257 this->Instance->SNO->WriteToSnoMask('l',"Received end of netburst from \2%s\2",sourceserv.c_str());
1259 Event rmode((char*)sourceserv.c_str(), (Module*)Utils->Creator, "new_server");
1260 rmode.Send(Instance);
1266 // not a special inter-server command.
1267 // Emulate the actual user doing the command,
1268 // this saves us having a huge ugly parser.
1269 userrec* who = this->Instance->FindNick(prefix);
1270 std::string sourceserv = this->myhost;
1271 if (this->InboundServerName != "")
1273 sourceserv = this->InboundServerName;
1275 if ((!who) && (command == "MODE"))
1277 if (Utils->IsServer(prefix))
1279 const char* modelist[127];
1280 for (size_t i = 0; i < params.size(); i++)
1281 modelist[i] = params[i].c_str();
1282 userrec* fake = new userrec(Instance);
1283 fake->SetFd(FD_MAGIC_NUMBER);
1284 this->Instance->SendMode(modelist, params.size(), fake);
1287 /* Hot potato! pass it on! */
1288 return Utils->DoOneToAllButSenderRaw(line,sourceserv,prefix,command,params);
1293 if ((command == "NICK") && (params.size() > 0))
1295 /* On nick messages, check that the nick doesnt
1296 * already exist here. If it does, kill their copy,
1299 userrec* x = this->Instance->FindNick(params[0]);
1300 if ((x) && (x != who))
1302 std::deque<std::string> p;
1303 p.push_back(params[0]);
1304 p.push_back("Nickname collision ("+prefix+" -> "+params[0]+")");
1305 Utils->DoOneToMany(this->Instance->Config->ServerName,"KILL",p);
1307 p.push_back(prefix);
1308 p.push_back("Nickname collision");
1309 Utils->DoOneToMany(this->Instance->Config->ServerName,"KILL",p);
1310 userrec::QuitUser(this->Instance,x,"Nickname collision ("+prefix+" -> "+params[0]+")");
1311 userrec* y = this->Instance->FindNick(prefix);
1314 userrec::QuitUser(this->Instance,y,"Nickname collision");
1316 return Utils->DoOneToAllButSenderRaw(line,sourceserv,prefix,command,params);
1320 target = who->server;
1321 const char* strparams[127];
1322 for (unsigned int q = 0; q < params.size(); q++)
1324 strparams[q] = params[q].c_str();
1326 switch (this->Instance->CallCommandHandler(command.c_str(), strparams, params.size(), who))
1329 this->WriteLine("ERROR :Unrecognised command '"+std::string(command.c_str())+"' -- possibly loaded mismatched modules");
1336 /* CMD_SUCCESS and CMD_USER_DELETED fall through here */
1342 // its not a user. Its either a server, or somethings screwed up.
1343 if (Utils->IsServer(prefix))
1344 target = this->Instance->Config->ServerName;
1348 return Utils->DoOneToAllButSenderRaw(line,sourceserv,prefix,command,params);
1357 std::string TreeSocket::GetName()
1359 std::string sourceserv = this->myhost;
1360 if (this->InboundServerName != "")
1362 sourceserv = this->InboundServerName;
1367 void TreeSocket::OnTimeout()
1369 if (this->LinkState == CONNECTING)
1371 this->Instance->SNO->WriteToSnoMask('l',"CONNECT: Connection to \002"+myhost+"\002 timed out.");
1372 Link* MyLink = Utils->FindLink(myhost);
1374 Utils->DoFailOver(MyLink);
1378 void TreeSocket::OnClose()
1380 // Connection closed.
1381 // If the connection is fully up (state CONNECTED)
1382 // then propogate a netsplit to all peers.
1383 std::string quitserver = this->myhost;
1384 if (this->InboundServerName != "")
1386 quitserver = this->InboundServerName;
1388 TreeServer* s = Utils->FindServer(quitserver);
1391 Squit(s,"Remote host closed the connection");
1394 if (quitserver != "")
1395 this->Instance->SNO->WriteToSnoMask('l',"Connection to '\2%s\2' failed.",quitserver.c_str());
1398 int TreeSocket::OnIncomingConnection(int newsock, char* ip)
1400 /* To prevent anyone from attempting to flood opers/DDoS by connecting to the server port,
1401 * or discovering if this port is the server port, we don't allow connections from any
1402 * IPs for which we don't have a link block.
1406 found = (std::find(Utils->ValidIPs.begin(), Utils->ValidIPs.end(), ip) != Utils->ValidIPs.end());
1409 for (vector<std::string>::iterator i = Utils->ValidIPs.begin(); i != Utils->ValidIPs.end(); i++)
1410 if (irc::sockets::MatchCIDR(ip, (*i).c_str()))
1415 this->Instance->SNO->WriteToSnoMask('l',"Server connection from %s denied (no link blocks with that IP address)", ip);
1421 TreeSocket* s = new TreeSocket(this->Utils, this->Instance, newsock, ip, this->Hook);
1422 s = s; /* Whinge whinge whinge, thats all GCC ever does. */