* | Inspire Internet Relay Chat Daemon |
* +------------------------------------+
*
- * InspIRCd: (C) 2002-2008 InspIRCd Development Team
- * See: http://www.inspircd.org/wiki/index.php/Credits
+ * InspIRCd: (C) 2002-2009 InspIRCd Development Team
+ * See: http://wiki.inspircd.org/Credits
*
* This program is free but copyrighted software; see
* the file COPYING for details.
*/
#include "inspircd.h"
-#include "commands/cmd_whois.h"
-#include "commands/cmd_stats.h"
#include "socket.h"
-#include "wildcard.h"
#include "xline.h"
-#include "transport.h"
#include "socketengine.h"
-#include "m_spanningtree/main.h"
-#include "m_spanningtree/utils.h"
-#include "m_spanningtree/treeserver.h"
-#include "m_spanningtree/link.h"
-#include "m_spanningtree/treesocket.h"
-#include "m_spanningtree/resolvers.h"
-#include "m_spanningtree/handshaketimer.h"
+#include "main.h"
+#include "utils.h"
+#include "treeserver.h"
+#include "link.h"
+#include "treesocket.h"
+#include "resolvers.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] O %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("");
-
- User* source = this->Instance->FindNick(prefix);
- if (!source)
- return true;
-
- std::vector<std::string> module_names = Instance->Modules->GetAllModuleNames(0);
-
- for (unsigned int i = 0; i < module_names.size(); i++)
- {
- Module* m = Instance->Modules->Find(module_names[i]);
- Version V = m->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,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,(unsigned long)m,
- 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->GetSID(), "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->GetSID(), "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;
- User* 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->GetSID(), "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->GetSID(), "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->GetSID(), "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->GetSID(), "PUSH",par, source->server);
- }
- }
- else
- {
- /* Pass it on */
- User* 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;
- User* 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->GetSID(), "PUSH",par, source->server);
- par[1] = std::string("::")+Instance->Config->ServerName+" 257 "+source->nick+" :Name - "+Instance->Config->AdminName;
- Utils->DoOneToOne(this->Instance->Config->GetSID(), "PUSH",par, source->server);
- par[1] = std::string("::")+Instance->Config->ServerName+" 258 "+source->nick+" :Nickname - "+Instance->Config->AdminNick;
- Utils->DoOneToOne(this->Instance->Config->GetSID(), "PUSH",par, source->server);
- par[1] = std::string("::")+Instance->Config->ServerName+" 258 "+source->nick+" :E-Mail - "+Instance->Config->AdminEmail;
- Utils->DoOneToOne(this->Instance->Config->GetSID(), "PUSH",par, source->server);
- }
- }
- else
- {
- /* Pass it on */
- User* 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;
- User* 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->GetSID(), "PUSH",par, source->server);
- }
- }
- }
- else
- {
- /* Pass it on */
- User* source = this->Instance->FindNick(prefix);
- if (source)
- Utils->DoOneToOne(source->uuid, "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];
- User* u = this->Instance->FindNick(prefix);
- if (u)
- {
- if (!u->IsModeSet('o'))
- this->Instance->Users->all_opers.push_back(u);
- u->modes[UM_OPERATOR] = 1;
- strlcpy(u->oper,opertype.c_str(),NICKMAX-1);
- Utils->DoOneToAllButSender(u->nick,"OPERTYPE",params,u->server);
-
- TreeServer* remoteserver = Utils->FindServer(u->server);
- bool dosend = true;
-
- if (this->Utils->quiet_bursts)
- {
- /*
- * If quiet bursts are enabled, and server is bursting or silent uline (i.e. services),
- * then do nothing. -- w00t
- */
- if (
- this->bursting ||
- Utils->FindRemoteBurstServer(remoteserver) ||
- this->Instance->SilentULine(this->Instance->FindServerNamePtr(u->server))
- )
- {
- dosend = false;
- }
- }
-
- if (dosend)
- 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;
-
- User* 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()))
- {
- /* buh. UID them */
- if (!u->ForceNickChange(u->uuid))
- {
- User::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;
-
- User* 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;
-
- if (!this->Instance->IsChannel(params[1].c_str()))
- return true;
-
- User* u = this->Instance->FindNick(params[0]);
-
- if (u)
- {
- /* only join if it's local, otherwise just pass it on! */
- if (IS_LOCAL(u))
- Channel::JoinUser(this->Instance, u, params[1].c_str(), false, "", false, Instance->Time());
- Utils->DoOneToAllButSender(prefix,"SVSJOIN",params,prefix);
- }
- return true;
-}
-
-bool TreeSocket::ServicePart(const std::string &prefix, std::deque<std::string> ¶ms)
-{
- if (params.size() < 2)
- return true;
-
- if (!this->Instance->IsChannel(params[1].c_str()))
- return true;
-
- User* u = this->Instance->FindNick(params[0]);
- Channel* c = this->Instance->FindChan(params[1]);
-
- if (u)
- {
- /* only part if it's local, otherwise just pass it on! */
- if (IS_LOCAL(u))
- if (!c->PartUser(u, "Services forced part"))
- delete c;
- Utils->DoOneToAllButSender(prefix,"SVSPART",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(true);
- 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;
-
- User* 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());
- User::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();
- timeval t;
- gettimeofday(&t, NULL);
- long ts = (t.tv_sec * 1000) + (t.tv_usec / 1000);
- ServerSource->rtt = ts - ServerSource->LastPingMsec;
- }
- }
- else
- {
- std::string forwardto = params[1];
- if (forwardto == Instance->Config->GetSID() || forwardto == 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.
- */
- User* 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()) == '#')
- {
- Channel* 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()) != '#')
- {
- User* 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;
- User* 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)
- {
- this->Instance->SNO->WriteToSnoMask('x',"%s sent me a malformed ADDLINE of type %s.",prefix.c_str(),params[0].c_str());
- return true;
- }
-
- XLineFactory* xlf = Instance->XLines->GetFactory(params[0]);
-
- if (!xlf)
- {
- this->Instance->SNO->WriteToSnoMask('x',"%s sent me an unknown ADDLINE type (%s).",prefix.c_str(),params[0].c_str());
- return true;
- }
-
- XLine* xl = xlf->Generate(Instance->Time(), atoi(params[4].c_str()), params[2].c_str(), params[5].c_str(), params[1].c_str());
- xl->SetCreateTime(atoi(params[3].c_str()));
- if (Instance->XLines->AddLine(xl,NULL))
- {
- if (xl->duration)
- {
- this->Instance->SNO->WriteToSnoMask('x',"%s added %s%s on %s to expire on %s (%s).",prefix.c_str(),params[0].c_str(),params[0].length() == 1 ? "LINE" : "",
- params[1].c_str(),Instance->TimeString(xl->expiry).c_str(),params[5].c_str());
- }
- else
- {
- this->Instance->SNO->WriteToSnoMask('x',"%s added permanent %s%s on %s (%s).",prefix.c_str(),params[0].c_str(),params[0].length() == 1 ? "LINE" : "",
- params[1].c_str(),params[5].c_str());
- }
- params[5] = ":" + params[5];
-
- User* u = Instance->FindNick(prefix);
- Utils->DoOneToAllButSender(prefix, "ADDLINE", params, u ? u->server : prefix);
- }
- else
- delete xl;
-
- if (!this->bursting)
- {
- Instance->XLines->ApplyLines();
- }
-
- return true;
-}
-
-bool TreeSocket::DelLine(const std::string &prefix, std::deque<std::string> ¶ms)
-{
- if (params.size() < 2)
- return true;
-
- User* user = Instance->FindNick(prefix);
-
- /* NOTE: No check needed on 'user', this function safely handles NULL */
- if (Instance->XLines->DelLine(params[0].c_str(), params[1], user))
- {
- this->Instance->SNO->WriteToSnoMask('x',"%s removed %s%s on %s.", prefix.c_str(),
- params[0].c_str(), params[0].length() == 1 ? "LINE" : "", params[1].c_str());
- Utils->DoOneToAllButSender(prefix,"DELLINE", params, prefix);
- }
- return true;
-}
-
-bool TreeSocket::ChangeName(const std::string &prefix, std::deque<std::string> ¶ms)
-{
- if (params.size() < 1)
- return true;
- User* 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;
- User* u = this->Instance->FindNick(prefix);
- if (u)
- {
- // an incoming request
- if (params.size() == 1)
- {
- User* x = this->Instance->FindNick(params[0]);
- if ((x) && (IS_LOCAL(x)))
- {
- User* 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];
- User* 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;
- User* 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] || this->Instance->Config->GetSID() == params[0])
- {
- User* u = this->Instance->FindNick(params[1]);
- if (u)
- {
- params.push_back(ConvToStr(Instance->Time(false)));
- params[0] = prefix;
- Utils->DoOneToOne(this->Instance->Config->GetSID(),"TIME",params,params[0]);
- }
- }
- else
- {
- // not us, pass it on
- User* 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
- User* 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->GetSID()+" PONG "+stufftobounce);
- return true;
- }
- else
- {
- std::string forwardto = params[1];
- if (forwardto == this->Instance->Config->ServerName || forwardto == this->Instance->Config->GetSID())
- {
- // 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)
+/* Handle ERROR command */
+bool TreeSocket::Error(parameterlist ¶ms)
{
if (params.size() < 1)
- return true;
- Channel* 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() < 5)
- {
- SendError("Protocol error - Missing SID");
- 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 sid = params[3];
- std::string description = params[4];
- TreeServer* ParentOfThis = Utils->FindServer(prefix);
- if (!ParentOfThis)
- {
- this->SendError("Protocol error - Introduced remote server from unknown server "+prefix);
- return false;
- }
- if (!this->Instance->IsSID(sid))
- {
- this->SendError("Invalid format server ID: "+sid+"!");
- 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, sid, ParentOfThis,NULL, lnk ? lnk->Hidden : false);
-
- if (Node->DuplicateID())
- {
- this->SendError("Server ID "+sid+" already exists on the network!");
- this->Instance->SNO->WriteToSnoMask('l',"Server \2"+servername+"\2 being introduced from \2" + prefix + "\2 denied, server ID already exists on the network. Closing link with " + prefix);
- return false;
- }
-
- ParentOfThis->AddChild(Node);
- params[4] = ":" + params[4];
- 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->Modules->Find("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() < 5)
- {
- SendError("Protocol error - Missing SID");
- return false;
- }
-
- irc::string servername = params[0].c_str();
- std::string sname = params[0];
- std::string password = params[1];
- std::string sid = params[3];
- std::string description = params[4];
- int hops = atoi(params[2].c_str());
-
- this->InboundServerName = sname;
- this->InboundDescription = description;
- this->InboundSID = sid;
-
- 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;
- }
-
- if (!this->Instance->IsSID(sid))
- {
- this->SendError("Invalid format server ID: "+sid+"!");
- 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, sid, Utils->TreeRoot, this, x->Hidden);
-
- if (Node->DuplicateID())
- {
- this->SendError("Server ID "+sid+" already exists on the network!");
- this->Instance->SNO->WriteToSnoMask('l',"Server \2"+assign(servername)+"\2 being introduced denied, server ID already exists on the network. Closing link.");
- return false;
- }
-
- Utils->TreeRoot->AddChild(Node);
- params[4] = ":" + params[4];
- Utils->DoOneToAllButSender(Instance->Config->GetSID(),"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() < 5)
- {
- SendError("Protocol error - Missing SID");
- return false;
- }
-
- irc::string servername = params[0].c_str();
- std::string sname = params[0];
- std::string password = params[1];
- std::string sid = params[3];
- std::string description = params[4];
- int hops = atoi(params[2].c_str());
-
- this->InboundServerName = sname;
- this->InboundDescription = description;
- this->InboundSID = sid;
-
- 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;
- }
-
- if (!this->Instance->IsSID(sid))
- {
- this->SendError("Invalid format server ID: "+sid+"!");
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();
- return false;
- }
- /* Check for fully initialized instances of the server by id */
- Instance->Log(DEBUG,"Looking for dupe SID %s", sid.c_str());
- TreeServer* CheckDupeSID = Utils->FindServerID(sid);
- if (CheckDupeSID)
- {
- this->SendError("Server ID "+CheckDupeSID->GetID()+" already exists on server "+CheckDupeSID->GetName()+"!");
- this->Instance->SNO->WriteToSnoMask('l',"Server connection from \2"+sname+"\2 denied, server ID '"+CheckDupeSID->GetID()+
- "' already exists on server "+CheckDupeSID->GetName());
- return false;
- }
- /* Now check for fully initialized instances of the server by name */
- 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 = BufferedSocketNameRequest((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 "+Instance->Config->GetSID()+" :"+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");
+ ServerInstance->SNO->WriteGlobalSno('l',"ERROR from %s: %s",(!InboundServerName.empty() ? InboundServerName.c_str() : myhost.c_str()),params[0].c_str());
+ /* we will return false to cause the socket to close. */
return false;
}
-void TreeSocket::Split(const std::string &line, std::deque<std::string> &n)
+void TreeSocket::Split(const std::string& line, std::string& prefix, std::string& command, parameterlist& params)
{
- n.clear();
irc::tokenstream tokens(line);
- std::string param;
- while (tokens.GetToken(param))
- {
- n.push_back(param);
- }
- return;
-}
-
-bool TreeSocket::ProcessLine(std::string &line)
-{
- std::deque<std::string> params;
- irc::string command;
- std::string prefix;
- line = line.substr(0, line.find_first_of("\r\n"));
-
- if (line.empty())
- return true;
-
- Instance->Log(DEBUG, "S[%d] I %s", this->GetFd(), line.c_str());
-
- this->Split(line.c_str(),params);
-
- if (params.empty())
- return true;
+ if (!tokens.GetToken(prefix))
+ return;
- if ((params[0][0] == ':') && (params.size() > 1))
- {
- prefix = params[0].substr(1);
- params.pop_front();
-
- if (prefix.empty())
- {
- this->SendError("BUG (?) Empty prefix recieved.");
- return false;
- }
- }
-
- command = params[0].c_str();
- params.pop_front();
-
- switch (this->LinkState)
+ if (prefix[0] == ':')
{
- 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
- {
- 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 == "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 < -600) || (delta > 600))
- {
- Instance->SNO->WriteToSnoMask('l',"\2ERROR\2: Your clocks are out by %d seconds (this is more than five minutes). Link aborted, \2PLEASE SYNC YOUR CLOCKS!\2",abs(delta));
- SendError("Your clocks are out by "+ConvToStr(abs(delta))+" seconds (this is more than five minutes). Link aborted, PLEASE SYNC YOUR CLOCKS!");
- return false;
- }
- else if ((delta < -30) || (delta > 30))
- {
- Instance->SNO->WriteToSnoMask('l',"\2WARNING\2: Your clocks are out by %d seconds. Please consider synching your clocks.", abs(delta));
- }
-
- if (!Utils->MasterTime && !we_have_delta)
- {
- this->Instance->SetTimeDelta(delta);
- // Send this new timestamp to any other servers
- Utils->DoOneToMany(Instance->Config->GetSID(), "TIMESET", params);
- }
- }
- this->LinkState = CONNECTED;
- Link* lnk = Utils->FindLink(InboundServerName);
-
- Node = new TreeServer(this->Utils, this->Instance, InboundServerName, InboundDescription, InboundSID, Utils->TreeRoot, this, lnk ? lnk->Hidden : false);
-
- if (Node->DuplicateID())
- {
- this->SendError("Server ID "+InboundSID+" already exists on the network!");
- this->Instance->SNO->WriteToSnoMask('l',"Server \2"+InboundServerName+"\2 being introduced from \2" + prefix + "\2 denied, server ID already exists on the network. Closing link.");
- return false;
- }
- Utils->DelBurstingServer(this);
- Utils->TreeRoot->AddChild(Node);
- params.clear();
- params.push_back(InboundServerName);
- params.push_back("*");
- params.push_back("1");
- params.push_back(InboundSID);
- params.push_back(":"+InboundDescription);
- Utils->DoOneToAllButSender(Instance->Config->GetSID(),"SERVER",params,InboundServerName);
- this->bursting = true;
- timeval t;
- gettimeofday(&t, NULL);
- long ts = (t.tv_sec * 1000) + (t.tv_usec / 1000);
- Node->StartBurst = ts;
- 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;
-
- User *t = this->Instance->FindUUID(prefix);
- if (t)
- {
- direction = t->server;
- }
-
- TreeServer* route_back_again = Utils->BestRouteTo(direction);
- if ((!route_back_again) || (route_back_again->GetSocket() != this))
- {
- if (route_back_again)
- Instance->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) + Utils->PingFreq);
- route_back_again->SetPingFlag();
- }
- else
- {
- TreeServer* n = Utils->FindServer(GetName());
- if (n)
- prefix = n->GetID();
- else
- prefix = GetName();
- }
-
- if ((command == "MODE") && (params.size() >= 2))
- {
- Channel* channel = Instance->FindChan(params[0]);
- if (channel)
- {
- User* 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;
- }
- }
- }
- }
+ prefix = prefix.substr(1);
- 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 == "UID")
- {
- return this->ParseUID(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")
- {
- /*
- * 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 (prefix.empty())
+ {
+ this->SendError("BUG (?) Empty prefix received: " + line);
+ return;
+ }
+ if (!tokens.GetToken(command))
+ {
+ this->SendError("BUG (?) Empty command received: " + line);
+ return;
+ }
+ }
+ else
+ {
+ command = prefix;
+ prefix.clear();
+ }
+ if (command.empty())
+ this->SendError("BUG (?) Empty command received: " + line);
- if (this->bursting)
- {
- this->bursting = false;
- Instance->XLines->ApplyLines();
- }
+ std::string param;
+ while (tokens.GetToken(param))
+ {
+ params.push_back(param);
+ }
+}
- return this->LocalPing(prefix,params);
- }
- else if (command == "PONG")
- {
- /*
- * 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);
+void TreeSocket::ProcessLine(std::string &line)
+{
+ std::string prefix;
+ std::string command;
+ parameterlist params;
- if (this->bursting)
- {
- this->bursting = false;
- Instance->XLines->ApplyLines();
- }
+ ServerInstance->Logs->Log("m_spanningtree",DEBUG, "S[%d] I %s", this->GetFd(), line.c_str());
- 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 == "DELLINE")
+ Split(line, prefix, command, params);
+
+ if (command.empty())
+ return;
+
+ switch (this->LinkState)
+ {
+ TreeServer* Node;
+
+ case WAIT_AUTH_1:
+ /*
+ * State WAIT_AUTH_1:
+ * Waiting for SERVER command from remote server. Server initiating
+ * the connection sends the first SERVER command, listening server
+ * replies with theirs if its happy, then if the initiator is happy,
+ * it starts to send its net sync, which starts the merge, otherwise
+ * it sends an ERROR.
+ */
+ if (command == "PASS")
{
- return this->DelLine(prefix,params);
+ /*
+ * Ignore this silently. Some services packages insist on sending PASS, even
+ * when it is not required (i.e. by us). We have to ignore this here, otherwise
+ * as it's an unknown command (effectively), it will cause the connection to be
+ * closed, which probably isn't what people want. -- w00t
+ */
}
- else if (command == "SVSNICK")
+ else if (command == "SERVER")
{
- return this->ForceNick(prefix,params);
+ this->Inbound_Server(params);
}
- else if (command == "OPERQUIT")
+ else if (command == "ERROR")
{
- return this->OperQuit(prefix,params);
+ this->Error(params);
}
- else if (command == "IDLE")
+ else if (command == "USER")
{
- return this->Whois(prefix,params);
+ this->SendError("Client connections to this port are prohibited.");
}
- else if (command == "PUSH")
+ else if (command == "CAPAB")
{
- return this->Push(prefix,params);
+ this->Capab(params);
}
- else if (command == "TIMESET")
+ else
{
- return this->HandleSetTime(prefix, params);
+ this->SendError(std::string("Invalid command in negotiation phase: ") + command.c_str());
}
- else if (command == "TIME")
+ break;
+ case WAIT_AUTH_2:
+ /*
+ * State WAIT_AUTH_2:
+ * We have sent SERVER to the other side of the connection. Now we're waiting for them to start BURST.
+ * The other option at this stage of things, of course, is for them to close our connection thanks
+ * to invalid credentials.. -- w
+ */
+ if (command == "SERVER")
{
- return this->Time(prefix,params);
+ /*
+ * Connection is either attempting to re-auth itself (stupid) or sending netburst without sending BURST.
+ * Both of these aren't allowable, so block them here. -- w
+ */
+ this->SendError("You may not re-authenticate or commence netburst without sending BURST.");
}
- else if ((command == "KICK") && (Utils->IsServer(prefix)))
+ else if (command == "BURST")
{
- std::string sourceserv = this->myhost;
- if (params.size() == 3)
+ if (params.size())
{
- User* user = this->Instance->FindNick(params[1]);
- Channel* chan = this->Instance->FindChan(params[0]);
- if (user && chan)
+ time_t them = atoi(params[0].c_str());
+ time_t delta = them - ServerInstance->Time();
+ if ((delta < -600) || (delta > 600))
+ {
+ ServerInstance->SNO->WriteGlobalSno('l',"\2ERROR\2: Your clocks are out by %d seconds (this is more than five minutes). Link aborted, \2PLEASE SYNC YOUR CLOCKS!\2",abs((long)delta));
+ SendError("Your clocks are out by "+ConvToStr(abs((long)delta))+" seconds (this is more than five minutes). Link aborted, PLEASE SYNC YOUR CLOCKS!");
+ return;
+ }
+ else if ((delta < -30) || (delta > 30))
{
- if (!chan->ServerKickUser(user, params[2].c_str(), false))
- /* Yikes, the channels gone! */
- delete chan;
+ ServerInstance->SNO->WriteGlobalSno('l',"\2WARNING\2: Your clocks are out by %d seconds. Please consider synching your clocks.", abs((long)delta));
}
}
- if (!this->InboundServerName.empty())
+ this->LinkState = CONNECTED;
+
+ Utils->timeoutlist.erase(this);
+ if (myautoconnect)
{
- sourceserv = this->InboundServerName;
+ myautoconnect->position = -1;
+ myautoconnect = NULL;
}
- return Utils->DoOneToAllButSenderRaw(line,sourceserv,prefix,command,params);
- }
- else if (command == "SVSJOIN")
- {
- return this->ServiceJoin(prefix,params);
+
+ Link* lnk = Utils->FindLink(InboundServerName);
+
+ Node = new TreeServer(this->Utils, InboundServerName, InboundDescription, InboundSID, Utils->TreeRoot, this, lnk ? lnk->Hidden : false);
+
+ Utils->TreeRoot->AddChild(Node);
+ parameterlist sparams;
+ sparams.push_back(InboundServerName);
+ sparams.push_back("*");
+ sparams.push_back("1");
+ sparams.push_back(InboundSID);
+ sparams.push_back(":"+InboundDescription);
+ Utils->DoOneToAllButSender(ServerInstance->Config->GetSID(),"SERVER",sparams,InboundServerName);
+ Utils->DoOneToAllButSender(prefix, "BURST", params, InboundServerName);
+ Node->bursting = true;
+ this->DoBurst(Node);
}
- else if (command == "SVSPART")
+ else if (command == "ERROR")
{
- return this->ServicePart(prefix,params);
+ this->Error(params);
}
- else if (command == "SQUIT")
+ else if (command == "CAPAB")
{
- if (params.size() == 2)
- {
- this->Squit(Utils->FindServer(params[0]),params[1]);
- }
- return true;
+ this->Capab(params);
}
- else if (command == "OPERNOTICE")
+
+ break;
+ case CONNECTING:
+ /*
+ * State CONNECTING:
+ * We're connecting (OUTGOING) to another server. They are in state WAIT_AUTH_1 until they verify
+ * our credentials, when they proceed into WAIT_AUTH_2 and send SERVER to us. We then send BURST
+ * + our netburst, which will put them into CONNECTED state. -- w
+ */
+ if (command == "SERVER")
{
- std::string sourceserv = this->myhost;
- if (!this->InboundServerName.empty())
- sourceserv = this->InboundServerName;
- if (params.size() >= 1)
- Instance->SNO->WriteToSnoMask('A', "From " + prefix + ": " + params[0]);
- return Utils->DoOneToAllButSenderRaw(line, sourceserv, prefix, command, params);
+ // Our credentials have been accepted, send netburst. (this puts US into the CONNECTED state)
+ this->Outbound_Reply_Server(params);
}
- else if (command == "MODENOTICE")
+ else if (command == "ERROR")
{
- std::string sourceserv = this->myhost;
- if (!this->InboundServerName.empty())
- sourceserv = this->InboundServerName;
- if (params.size() >= 2)
- {
- Instance->Users->WriteMode(params[0].c_str(), WM_AND, "*** From %s: %s", prefix.c_str(), params[1].c_str());
- }
- return Utils->DoOneToAllButSenderRaw(line, sourceserv, prefix, command, params);
+ this->Error(params);
}
- else if (command == "SNONOTICE")
+ else if (command == "CAPAB")
{
- std::string sourceserv = this->myhost;
- if (!this->InboundServerName.empty())
- sourceserv = this->InboundServerName;
- if (params.size() >= 2)
- {
- Instance->SNO->WriteToSnoMask(*(params[0].c_str()), "From " + prefix + ": "+ params[1]);
- }
- return Utils->DoOneToAllButSenderRaw(line, sourceserv, prefix, command, params);
+ this->Capab(params);
}
- else if (command == "ENDBURST")
- {
- TreeServer* ServerSource = Utils->FindServer(prefix);
- if (!ServerSource)
- {
- this->Instance->SNO->WriteToSnoMask('l', "WTF: Got ENDBURST from a nonexistant server(?): %s", prefix.c_str());
- return false;
- }
-
- this->bursting = false;
- Instance->XLines->ApplyLines();
- std::string sourceserv = this->myhost;
- if (!this->InboundServerName.empty())
- sourceserv = this->InboundServerName;
- timeval t;
- gettimeofday(&t, NULL);
- long ts = (t.tv_sec * 1000) + (t.tv_usec / 1000);
- unsigned long bursttime = ts - ServerSource->StartBurst;
- this->Instance->SNO->WriteToSnoMask('l', "Received end of netburst from \2%s\2 (burst time: %ul ms)", sourceserv.c_str(), bursttime);
+ break;
+ case CONNECTED:
+ /*
+ * State CONNECTED:
+ * Credentials have been exchanged, we've gotten their 'BURST' (or sent ours).
+ * Anything from here on should be accepted a little more reasonably.
+ */
+ this->ProcessConnectedLine(prefix, command, params);
+ break;
+ }
+}
- Event rmode((char*)sourceserv.c_str(), (Module*)Utils->Creator, "new_server");
- rmode.Send(Instance);
+void TreeSocket::ProcessConnectedLine(std::string& prefix, std::string& command, parameterlist& params)
+{
+ User* who = ServerInstance->FindUUID(prefix);
+ std::string direction;
- return true;
- }
- else
- {
- /*
- * Not a special s2s command. Emulate the user doing it.
- * This saves us having a huge ugly command parser again.
- */
- User *who = this->Instance->FindUUID(prefix);
+ if (who)
+ {
+ direction = who->server;
+ }
+ else
+ {
+ TreeServer* ServerSource = Utils->FindServer(prefix);
+ if (prefix.empty())
+ ServerSource = Utils->FindServer(GetName());
- std::string sourceserv = this->myhost;
- if (!this->InboundServerName.empty())
- {
- sourceserv = this->InboundServerName;
- }
- if ((!who) && (command == "MODE"))
- {
- if (Utils->IsServer(prefix))
- {
- const char* modelist[MAXPARAMETERS];
- for (size_t i = 0; i < params.size(); i++)
- modelist[i] = params[i].c_str();
- this->Instance->SendMode(modelist, params.size(), this->Instance->FakeClient);
- /* Hot potato! pass it on! */
- return Utils->DoOneToAllButSenderRaw(line,sourceserv,prefix,command,params);
- }
- }
- if (who)
- {
- if (command == "NICK")
- {
- if (params.size() != 2)
- {
- SendError("Protocol violation: NICK message without TS - :"+std::string(who->uuid)+" NICK "+params[0]);
- return false;
- }
- /* Update timestamp on user when they change nicks */
- who->age = atoi(params[1].c_str());
+ if (ServerSource)
+ {
+ who = ServerSource->ServerUser;
+ direction = prefix;
+ }
+ else
+ {
+ /* It is important that we don't close the link here, unknown prefix can occur
+ * due to various race conditions such as the KILL message for a user somehow
+ * crossing the users QUIT further upstream from the server. Thanks jilles!
+ */
+ ServerInstance->Logs->Log("m_spanningtree", DEBUG, "Command '%s' from unknown prefix '%s'! Dropping entire command.",
+ command.c_str(), prefix.c_str());
+ return;
+ }
+ }
+
+ // Make sure prefix is still good
+ prefix = who->uuid;
+
+ /*
+ * Check for fake direction here, and drop any instances that are found.
+ * What is fake direction? Imagine the following server setup:
+ * 0AA <-> 0AB <-> 0AC
+ * Fake direction would be 0AC sending a message to 0AB claiming to be from
+ * 0AA, or something similar. Basically, a message taking a path that *cannot*
+ * be correct.
+ *
+ * When would this be seen?
+ * Well, hopefully never. It could be caused by race conditions, bugs, or
+ * "miscreant" servers, though, so let's check anyway. -- w
+ *
+ * We also check here for totally invalid prefixes (prefixes that are neither
+ * a valid SID or a valid UUID, so that invalid UUID or SID never makes it
+ * to the higher level functions. -- B
+ */
+ TreeServer* route_back_again = Utils->BestRouteTo(direction);
+ if ((!route_back_again) || (route_back_again->GetSocket() != this))
+ {
+ if (route_back_again)
+ ServerInstance->Logs->Log("m_spanningtree",DEBUG,"Protocol violation: Fake direction '%s' from connection '%s'",
+ prefix.c_str(),this->GetName().c_str());
+ return;
+ }
- /* On nick messages, check that the nick doesnt
- * already exist here. If it does, kill their copy,
- * and our copy.
- */
- User* x = this->Instance->FindNickOnly(params[0]);
- if ((x) && (x != who))
- {
- int collideret = 0;
- /* x is local, who is remote */
- collideret = this->DoCollision(x, who->age, who->ident, who->GetIPString(), who->uuid);
- if (collideret != 1)
- {
- /*
- * Remote client lost, or both lost,
- * parsing this nickchange would be
- * pointless, as the incoming client's
- * server will soon recieve SVSNICK to
- * change its nick to its UID. :)
- * -- w00t
- */
- return true;
- }
-/*
-Old nickname collision logic..
- 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);
- User::QuitUser(this->Instance,x,"Nickname collision ("+prefix+" -> "+params[0]+")");
- User* y = this->Instance->FindNick(prefix);
- if (y)
- {
- User::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 or malformed 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->GetSID();
- else
- return true;
- }
- return Utils->DoOneToAllButSenderRaw(line,sourceserv,prefix,command,params);
+ /*
+ * First up, check for any malformed commands (e.g. MODE without a timestamp)
+ * and rewrite commands where necessary (SVSMODE -> MODE for services). -- w
+ */
+ if (command == "SVSMODE") // This isn't in an "else if" so we still force FMODE for changes on channels.
+ command = "MODE";
+
+ // TODO move all this into Commands
+ if (command == "UID")
+ {
+ this->ParseUID(prefix, params);
+ }
+ else if (command == "FJOIN")
+ {
+ this->ForceJoin(who,params);
+ }
+ else if (command == "STATS")
+ {
+ this->Stats(prefix, params);
+ }
+ else if (command == "MOTD")
+ {
+ this->Motd(prefix, params);
+ }
+ else if (command == "ADMIN")
+ {
+ this->Admin(prefix, params);
+ }
+ else if (command == "MAP")
+ {
+ Utils->Creator->HandleMap(params, who);
+ }
+ else if (command == "SERVER")
+ {
+ this->RemoteServer(prefix,params);
+ }
+ else if (command == "ERROR")
+ {
+ this->Error(params);
+ }
+ else if (command == "OPERTYPE")
+ {
+ this->OperType(prefix,params);
+ }
+ else if (command == "AWAY")
+ {
+ this->Away(prefix,params);
+ }
+ else if (command == "FMODE")
+ {
+ this->ForceMode(who,params);
+ }
+ else if (command == "FTOPIC")
+ {
+ this->ForceTopic(prefix,params);
+ }
+ else if (command == "METADATA")
+ {
+ this->MetaData(prefix,params);
+ }
+ else if (command == "PING")
+ {
+ this->LocalPing(prefix,params);
+ }
+ else if (command == "PONG")
+ {
+ TreeServer *s = Utils->FindServer(prefix);
+ if (s && s->bursting)
+ {
+ ServerInstance->SNO->WriteGlobalSno('l',"Server \002%s\002 has not finished burst, forcing end of burst (send ENDBURST!)", prefix.c_str());
+ s->FinishBurst();
+ }
+ this->LocalPong(prefix,params);
+ }
+ else if (command == "VERSION")
+ {
+ this->ServerVersion(prefix,params);
+ }
+ else if (command == "FHOST")
+ {
+ this->ChangeHost(prefix,params);
+ }
+ else if (command == "FNAME")
+ {
+ this->ChangeName(prefix,params);
+ }
+ else if (command == "FIDENT")
+ {
+ this->ChangeIdent(prefix,params);
+ }
+ else if (command == "ADDLINE")
+ {
+ this->AddLine(prefix,params);
+ }
+ else if (command == "DELLINE")
+ {
+ this->DelLine(prefix,params);
+ }
+ else if (command == "SVSNICK")
+ {
+ this->SVSNick(prefix,params);
+ }
+ else if (command == "SAVE")
+ {
+ this->ForceNick(prefix,params);
+ }
+ else if (command == "OPERQUIT")
+ {
+ this->OperQuit(prefix,params);
+ }
+ else if (command == "IDLE")
+ {
+ this->Whois(prefix,params);
+ }
+ else if (command == "PUSH")
+ {
+ this->Push(prefix,params);
+ }
+ else if (command == "TIME")
+ {
+ this->Time(prefix,params);
+ }
+ else if (command == "SVSJOIN")
+ {
+ this->ServiceJoin(prefix,params);
+ }
+ else if (command == "SVSPART")
+ {
+ this->ServicePart(prefix,params);
+ }
+ else if (command == "SQUIT")
+ {
+ if (params.size() == 2)
+ {
+ this->Squit(Utils->FindServer(params[0]),params[1]);
+ }
+ }
+ else if (command == "SNONOTICE")
+ {
+ if (params.size() >= 2)
+ {
+ ServerInstance->SNO->WriteToSnoMask(*(params[0].c_str()), "From " + who->nick + ": "+ params[1]);
+ Utils->DoOneToAllButSender(prefix, command, params, prefix);
+ }
+ }
+ else if (command == "BURST")
+ {
+ // Set prefix server as bursting
+ TreeServer* ServerSource = Utils->FindServer(prefix);
+ if (!ServerSource)
+ {
+ ServerInstance->SNO->WriteGlobalSno('l', "WTF: Got BURST from a non-server(?): %s", prefix.c_str());
+ return;
+ }
+
+ ServerSource->bursting = true;
+ Utils->DoOneToAllButSender(prefix, command, params, prefix);
+ }
+ else if (command == "ENDBURST")
+ {
+ TreeServer* ServerSource = Utils->FindServer(prefix);
+ if (!ServerSource)
+ {
+ ServerInstance->SNO->WriteGlobalSno('l', "WTF: Got ENDBURST from a non-server(?): %s", prefix.c_str());
+ return;
+ }
+
+ ServerSource->FinishBurst();
+ Utils->DoOneToAllButSender(prefix, command, params, prefix);
+ }
+ else if (command == "ENCAP")
+ {
+ this->Encap(who, params);
+ }
+ else if (command == "NICK")
+ {
+ if (params.size() != 2)
+ {
+ SendError("Protocol violation: NICK message without TS - :"+std::string(who->uuid)+" NICK "+params[0]);
+ return;
+ }
+
+ if (IS_SERVER(who))
+ {
+ SendError("Protocol violation: Server changing nick");
+ return;
+ }
+
+ /* Update timestamp on user when they change nicks */
+ who->age = atoi(params[1].c_str());
+ /*
+ * On nick messages, check that the nick doesnt already exist here.
+ * If it does, perform collision logic.
+ */
+ User* x = ServerInstance->FindNickOnly(params[0]);
+ if ((x) && (x != who))
+ {
+ int collideret = 0;
+ /* x is local, who is remote */
+ collideret = this->DoCollision(x, who->age, who->ident, who->GetIPString(), who->uuid);
+ if (collideret != 1)
+ {
+ /*
+ * Remote client lost, or both lost, parsing or passing on this
+ * nickchange would be pointless, as the incoming client's server will
+ * soon recieve SVSNICK to change its nick to its UID. :) -- w00t
+ */
+ return;
}
- return true;
- break;
+ }
+ who->ForceNickChange(params[0].c_str());
+ Utils->RouteCommand(route_back_again, command, params, who);
+ }
+ else
+ {
+ Command* cmd = ServerInstance->Parser->GetHandler(command);
+ CmdResult res = CMD_INVALID;
+ if (cmd && params.size() >= cmd->min_params)
+ {
+ res = cmd->Handle(params, who);
+ }
+
+ if (res == CMD_INVALID)
+ SendError("Unrecognised or malformed command '" + command + "' -- possibly loaded mismatched modules");
+ if (res == CMD_SUCCESS)
+ Utils->RouteCommand(route_back_again, command, params, who);
}
- return true;
}
std::string TreeSocket::GetName()
{
if (this->LinkState == CONNECTING)
{
- Utils->Creator->RemoteMessage(NULL, "CONNECT: Connection to \002%s\002 timed out.", myhost.c_str());
- Link* MyLink = Utils->FindLink(myhost);
- if (MyLink)
- Utils->DoFailOver(MyLink);
+ ServerInstance->SNO->WriteGlobalSno('l', "CONNECT: Connection to \002%s\002 timed out.", myhost.c_str());
}
}
-void TreeSocket::OnClose()
+void TreeSocket::Close()
{
+ this->BufferedSocket::Close();
+
// Test fix for big fuckup
if (this->LinkState != CONNECTED)
return;
if (!quitserver.empty())
{
- Utils->Creator->RemoteMessage(NULL,"Connection to '\2%s\2' failed.",quitserver.c_str());
- time_t server_uptime = Instance->Time() - this->age;
- if (server_uptime)
- Utils->Creator->RemoteMessage(NULL,"Connection to '\2%s\2' was established for %s", quitserver.c_str(), Utils->Creator->TimeToStr(server_uptime).c_str());
- }
-}
-
-int TreeSocket::OnIncomingConnection(int newsock, char* ip)
-{
- /* To prevent anyone from attempting to flood opers/DDoS by connecting to the server port,
- * or discovering if this port is the server port, we don't allow connections from any
- * IPs for which we don't have a link block.
- */
- bool found = false;
-
- found = (std::find(Utils->ValidIPs.begin(), Utils->ValidIPs.end(), ip) != Utils->ValidIPs.end());
- if (!found)
- {
- for (vector<std::string>::iterator i = Utils->ValidIPs.begin(); i != Utils->ValidIPs.end(); i++)
- if (irc::sockets::MatchCIDR(ip, (*i).c_str()))
- found = true;
+ ServerInstance->SNO->WriteGlobalSno('l', "Connection to '\2%s\2' failed.",quitserver.c_str());
- if (!found)
- {
- Utils->Creator->RemoteMessage(NULL,"Server connection from %s denied (no link blocks with that IP address)", ip);
- Instance->SE->Close(newsock);
- return false;
- }
+ time_t server_uptime = ServerInstance->Time() - this->age;
+ if (server_uptime)
+ ServerInstance->SNO->WriteGlobalSno('l', "Connection to '\2%s\2' was established for %s", quitserver.c_str(), Utils->Creator->TimeToStr(server_uptime).c_str());
}
-
- TreeSocket* s = new TreeSocket(this->Utils, this->Instance, newsock, ip, this->Hook);
- s = s; /* Whinge whinge whinge, thats all GCC ever does. */
- return true;
}
projects / user / henk / code / inspircd.git / blobdiff