src/modules/m_spanningtree/main.cpp

   1 /*
   2  * InspIRCd -- Internet Relay Chat Daemon
   3  *
   4  *   Copyright (C) 2009-2010 Daniel De Graaf <danieldg@inspircd.org>
   5  *   Copyright (C) 2007-2009 Craig Edwards <craigedwards@brainbox.cc>
   6  *   Copyright (C) 2007-2008 Robin Burchell <robin+git@viroteck.net>
   7  *   Copyright (C) 2008 Thomas Stagner <aquanight@inspircd.org>
   8  *   Copyright (C) 2007 Dennis Friis <peavey@inspircd.org>
   9  *
  10  * This file is part of InspIRCd.  InspIRCd is free software: you can
  11  * redistribute it and/or modify it under the terms of the GNU General Public
  12  * License as published by the Free Software Foundation, version 2.
  13  *
  14  * This program is distributed in the hope that it will be useful, but WITHOUT
  15  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
  16  * FOR A PARTICULAR PURPOSE.  See the GNU General Public License for more
  17  * details.
  18  *
  19  * You should have received a copy of the GNU General Public License
  20  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  21  */
  22
  23
  24 #include "inspircd.h"
  25 #include "socket.h"
  26 #include "xline.h"
  27 #include "iohook.h"
  28
  29 #include "resolvers.h"
  30 #include "main.h"
  31 #include "utils.h"
  32 #include "treeserver.h"
  33 #include "link.h"
  34 #include "treesocket.h"
  35 #include "commands.h"
  36 #include "protocolinterface.h"
  37
  38 ModuleSpanningTree::ModuleSpanningTree()
  39         : commands(NULL), DNS(this, "DNS"), Utils(NULL)
  40 {
  41 }
  42
  43 SpanningTreeCommands::SpanningTreeCommands(ModuleSpanningTree* module)
  44         : rconnect(module, module->Utils), rsquit(module, module->Utils),
  45         svsjoin(module), svspart(module), svsnick(module), metadata(module),
  46         uid(module), opertype(module), fjoin(module), ijoin(module), resync(module),
  47         fmode(module), ftopic(module), fhost(module), fident(module), fname(module)
  48 {
  49 }
  50
  51 void ModuleSpanningTree::init()
  52 {
  53         ServerInstance->SNO->EnableSnomask('l', "LINK");
  54
  55         Utils = new SpanningTreeUtilities(this);
  56         commands = new SpanningTreeCommands(this);
  57         ServerInstance->Modules->AddService(commands->rconnect);
  58         ServerInstance->Modules->AddService(commands->rsquit);
  59         ServerInstance->Modules->AddService(commands->svsjoin);
  60         ServerInstance->Modules->AddService(commands->svspart);
  61         ServerInstance->Modules->AddService(commands->svsnick);
  62         ServerInstance->Modules->AddService(commands->metadata);
  63         ServerInstance->Modules->AddService(commands->uid);
  64         ServerInstance->Modules->AddService(commands->opertype);
  65         ServerInstance->Modules->AddService(commands->fjoin);
  66         ServerInstance->Modules->AddService(commands->ijoin);
  67         ServerInstance->Modules->AddService(commands->resync);
  68         ServerInstance->Modules->AddService(commands->fmode);
  69         ServerInstance->Modules->AddService(commands->ftopic);
  70         ServerInstance->Modules->AddService(commands->fhost);
  71         ServerInstance->Modules->AddService(commands->fident);
  72         ServerInstance->Modules->AddService(commands->fname);
  73
  74         delete ServerInstance->PI;
  75         ServerInstance->PI = new SpanningTreeProtocolInterface(Utils);
  76         loopCall = false;
  77
  78         // update our local user count
  79         Utils->TreeRoot->UserCount = ServerInstance->Users->local_users.size();
  80 }
  81
  82 void ModuleSpanningTree::ShowLinks(TreeServer* Current, User* user, int hops)
  83 {
  84         std::string Parent = Utils->TreeRoot->GetName();
  85         if (Current->GetParent())
  86         {
  87                 Parent = Current->GetParent()->GetName();
  88         }
  89         for (unsigned int q = 0; q < Current->ChildCount(); q++)
  90         {
  91                 if ((Current->GetChild(q)->Hidden) || ((Utils->HideULines) && (ServerInstance->ULine(Current->GetChild(q)->GetName()))))
  92                 {
  93                         if (user->IsOper())
  94                         {
  95                                  ShowLinks(Current->GetChild(q),user,hops+1);
  96                         }
  97                 }
  98                 else
  99                 {
 100                         ShowLinks(Current->GetChild(q),user,hops+1);
 101                 }
 102         }
 103         /* Don't display the line if its a uline, hide ulines is on, and the user isnt an oper */
 104         if ((Utils->HideULines) && (ServerInstance->ULine(Current->GetName())) && (!user->IsOper()))
 105                 return;
 106         /* Or if the server is hidden and they're not an oper */
 107         else if ((Current->Hidden) && (!user->IsOper()))
 108                 return;
 109
 110         user->WriteNumeric(364, "%s %s %s :%d %s",      user->nick.c_str(), Current->GetName().c_str(),
 111                         (Utils->FlatLinks && (!user->IsOper())) ? ServerInstance->Config->ServerName.c_str() : Parent.c_str(),
 112                         (Utils->FlatLinks && (!user->IsOper())) ? 0 : hops,
 113                         Current->GetDesc().c_str());
 114 }
 115
 116 int ModuleSpanningTree::CountServs()
 117 {
 118         return Utils->serverlist.size();
 119 }
 120
 121 void ModuleSpanningTree::HandleLinks(const std::vector<std::string>& parameters, User* user)
 122 {
 123         ShowLinks(Utils->TreeRoot,user,0);
 124         user->WriteNumeric(365, "%s * :End of /LINKS list.",user->nick.c_str());
 125         return;
 126 }
 127
 128 std::string ModuleSpanningTree::TimeToStr(time_t secs)
 129 {
 130         time_t mins_up = secs / 60;
 131         time_t hours_up = mins_up / 60;
 132         time_t days_up = hours_up / 24;
 133         secs = secs % 60;
 134         mins_up = mins_up % 60;
 135         hours_up = hours_up % 24;
 136         return ((days_up ? (ConvToStr(days_up) + "d") : "")
 137                         + (hours_up ? (ConvToStr(hours_up) + "h") : "")
 138                         + (mins_up ? (ConvToStr(mins_up) + "m") : "")
 139                         + ConvToStr(secs) + "s");
 140 }
 141
 142 void ModuleSpanningTree::DoPingChecks(time_t curtime)
 143 {
 144         /*
 145          * Cancel remote burst mode on any servers which still have it enabled due to latency/lack of data.
 146          * This prevents lost REMOTECONNECT notices
 147          */
 148         long ts = ServerInstance->Time() * 1000 + (ServerInstance->Time_ns() / 1000000);
 149
 150 restart:
 151         for (server_hash::iterator i = Utils->serverlist.begin(); i != Utils->serverlist.end(); i++)
 152         {
 153                 TreeServer *s = i->second;
 154
 155                 if (s->GetSocket() && s->GetSocket()->GetLinkState() == DYING)
 156                 {
 157                         s->GetSocket()->Close();
 158                         goto restart;
 159                 }
 160
 161                 // Fix for bug #792, do not ping servers that are not connected yet!
 162                 // Remote servers have Socket == NULL and local connected servers have
 163                 // Socket->LinkState == CONNECTED
 164                 if (s->GetSocket() && s->GetSocket()->GetLinkState() != CONNECTED)
 165                         continue;
 166
 167                 // Now do PING checks on all servers
 168                 TreeServer *mts = Utils->BestRouteTo(s->GetID());
 169
 170                 if (mts)
 171                 {
 172                         // Only ping if this server needs one
 173                         if (curtime >= s->NextPingTime())
 174                         {
 175                                 // And if they answered the last
 176                                 if (s->AnsweredLastPing())
 177                                 {
 178                                         // They did, send a ping to them
 179                                         s->SetNextPingTime(curtime + Utils->PingFreq);
 180                                         TreeSocket *tsock = mts->GetSocket();
 181
 182                                         // ... if we can find a proper route to them
 183                                         if (tsock)
 184                                         {
 185                                                 tsock->WriteLine(":" + ServerInstance->Config->GetSID() + " PING " + s->GetID());
 186                                                 s->LastPingMsec = ts;
 187                                         }
 188                                 }
 189                                 else
 190                                 {
 191                                         // They didn't answer the last ping, if they are locally connected, get rid of them.
 192                                         TreeSocket *sock = s->GetSocket();
 193                                         if (sock)
 194                                         {
 195                                                 sock->SendError("Ping timeout");
 196                                                 sock->Close();
 197                                                 goto restart;
 198                                         }
 199                                 }
 200                         }
 201
 202                         // If warn on ping enabled and not warned and the difference is sufficient and they didn't answer the last ping...
 203                         if ((Utils->PingWarnTime) && (!s->Warned) && (curtime >= s->NextPingTime() - (Utils->PingFreq - Utils->PingWarnTime)) && (!s->AnsweredLastPing()))
 204                         {
 205                                 /* The server hasnt responded, send a warning to opers */
 206                                 ServerInstance->SNO->WriteToSnoMask('l',"Server \002%s\002 has not responded to PING for %d seconds, high latency.", s->GetName().c_str(), Utils->PingWarnTime);
 207                                 s->Warned = true;
 208                         }
 209                 }
 210         }
 211 }
 212
 213 void ModuleSpanningTree::ConnectServer(Autoconnect* a, bool on_timer)
 214 {
 215         if (!a)
 216                 return;
 217         for(unsigned int j=0; j < a->servers.size(); j++)
 218         {
 219                 if (Utils->FindServer(a->servers[j]))
 220                 {
 221                         // found something in this block. Should the server fail,
 222                         // we want to start at the start of the list, not in the
 223                         // middle where we left off
 224                         a->position = -1;
 225                         return;
 226                 }
 227         }
 228         if (on_timer && a->position >= 0)
 229                 return;
 230         if (!on_timer && a->position < 0)
 231                 return;
 232
 233         a->position++;
 234         while (a->position < (int)a->servers.size())
 235         {
 236                 Link* x = Utils->FindLink(a->servers[a->position]);
 237                 if (x)
 238                 {
 239                         ServerInstance->SNO->WriteToSnoMask('l', "AUTOCONNECT: Auto-connecting server \002%s\002", x->Name.c_str());
 240                         ConnectServer(x, a);
 241                         return;
 242                 }
 243                 a->position++;
 244         }
 245         // Autoconnect chain has been fully iterated; start at the beginning on the
 246         // next AutoConnectServers run
 247         a->position = -1;
 248 }
 249
 250 void ModuleSpanningTree::ConnectServer(Link* x, Autoconnect* y)
 251 {
 252         bool ipvalid = true;
 253
 254         if (InspIRCd::Match(ServerInstance->Config->ServerName, assign(x->Name)))
 255         {
 256                 ServerInstance->SNO->WriteToSnoMask('l', "CONNECT: Not connecting to myself.");
 257                 return;
 258         }
 259
 260         DNS::QueryType start_type = DNS::QUERY_AAAA;
 261         if (strchr(x->IPAddr.c_str(),':'))
 262         {
 263                 in6_addr n;
 264                 if (inet_pton(AF_INET6, x->IPAddr.c_str(), &n) < 1)
 265                         ipvalid = false;
 266         }
 267         else
 268         {
 269                 in_addr n;
 270                 if (inet_aton(x->IPAddr.c_str(),&n) < 1)
 271                         ipvalid = false;
 272         }
 273
 274         /* Do we already have an IP? If so, no need to resolve it. */
 275         if (ipvalid)
 276         {
 277                 /* Gave a hook, but it wasnt one we know */
 278                 TreeSocket* newsocket = new TreeSocket(Utils, x, y, x->IPAddr);
 279                 if (newsocket->GetFd() > -1)
 280                 {
 281                         /* Handled automatically on success */
 282                 }
 283                 else
 284                 {
 285                         ServerInstance->SNO->WriteToSnoMask('l', "CONNECT: Error connecting \002%s\002: %s.",
 286                                 x->Name.c_str(), newsocket->getError().c_str());
 287                         ServerInstance->GlobalCulls.AddItem(newsocket);
 288                 }
 289         }
 290         else if (!DNS)
 291         {
 292                 ServerInstance->SNO->WriteToSnoMask('l', "CONNECT: Error connecting \002%s\002: Hostname given and m_dns.so is not loaded, unable to resolve.", x->Name.c_str());
 293         }
 294         else
 295         {
 296                 ServernameResolver* snr = new ServernameResolver(Utils, *DNS, x->IPAddr, x, start_type, y);
 297                 try
 298                 {
 299                         DNS->Process(snr);
 300                 }
 301                 catch (DNS::Exception& e)
 302                 {
 303                         delete snr;
 304                         ServerInstance->SNO->WriteToSnoMask('l', "CONNECT: Error connecting \002%s\002: %s.",x->Name.c_str(), e.GetReason());
 305                         ConnectServer(y, false);
 306                 }
 307         }
 308 }
 309
 310 void ModuleSpanningTree::AutoConnectServers(time_t curtime)
 311 {
 312         for (std::vector<reference<Autoconnect> >::iterator i = Utils->AutoconnectBlocks.begin(); i < Utils->AutoconnectBlocks.end(); ++i)
 313         {
 314                 Autoconnect* x = *i;
 315                 if (curtime >= x->NextConnectTime)
 316                 {
 317                         x->NextConnectTime = curtime + x->Period;
 318                         ConnectServer(x, true);
 319                 }
 320         }
 321 }
 322
 323 void ModuleSpanningTree::DoConnectTimeout(time_t curtime)
 324 {
 325         std::map<TreeSocket*, std::pair<std::string, int> >::iterator i = Utils->timeoutlist.begin();
 326         while (i != Utils->timeoutlist.end())
 327         {
 328                 TreeSocket* s = i->first;
 329                 std::pair<std::string, int> p = i->second;
 330                 std::map<TreeSocket*, std::pair<std::string, int> >::iterator me = i;
 331                 i++;
 332                 if (s->GetLinkState() == DYING)
 333                 {
 334                         Utils->timeoutlist.erase(me);
 335                         s->Close();
 336                 }
 337                 else if (curtime > s->age + p.second)
 338                 {
 339                         ServerInstance->SNO->WriteToSnoMask('l',"CONNECT: Error connecting \002%s\002 (timeout of %d seconds)",p.first.c_str(),p.second);
 340                         Utils->timeoutlist.erase(me);
 341                         s->Close();
 342                 }
 343         }
 344 }
 345
 346 ModResult ModuleSpanningTree::HandleVersion(const std::vector<std::string>& parameters, User* user)
 347 {
 348         // we've already checked if pcnt > 0, so this is safe
 349         TreeServer* found = Utils->FindServerMask(parameters[0]);
 350         if (found)
 351         {
 352                 if (found == Utils->TreeRoot)
 353                 {
 354                         // Pass to default VERSION handler.
 355                         return MOD_RES_PASSTHRU;
 356                 }
 357                 std::string Version = found->GetVersion();
 358                 user->WriteNumeric(351, "%s :%s",user->nick.c_str(),Version.c_str());
 359         }
 360         else
 361         {
 362                 user->WriteNumeric(402, "%s %s :No such server",user->nick.c_str(),parameters[0].c_str());
 363         }
 364         return MOD_RES_DENY;
 365 }
 366
 367 /* This method will attempt to get a message to a remote user.
 368  */
 369 void ModuleSpanningTree::RemoteMessage(User* user, const char* format, ...)
 370 {
 371         std::string text;
 372         VAFORMAT(text, format, format);
 373
 374         if (IS_LOCAL(user))
 375                 user->WriteNotice(text);
 376         else
 377                 ServerInstance->PI->SendUserNotice(user, text);
 378 }
 379
 380 ModResult ModuleSpanningTree::HandleConnect(const std::vector<std::string>& parameters, User* user)
 381 {
 382         for (std::vector<reference<Link> >::iterator i = Utils->LinkBlocks.begin(); i < Utils->LinkBlocks.end(); i++)
 383         {
 384                 Link* x = *i;
 385                 if (InspIRCd::Match(x->Name.c_str(),parameters[0]))
 386                 {
 387                         if (InspIRCd::Match(ServerInstance->Config->ServerName, assign(x->Name)))
 388                         {
 389                                 RemoteMessage(user, "*** CONNECT: Server \002%s\002 is ME, not connecting.",x->Name.c_str());
 390                                 return MOD_RES_DENY;
 391                         }
 392
 393                         TreeServer* CheckDupe = Utils->FindServer(x->Name.c_str());
 394                         if (!CheckDupe)
 395                         {
 396                                 RemoteMessage(user, "*** CONNECT: Connecting to server: \002%s\002 (%s:%d)",x->Name.c_str(),(x->HiddenFromStats ? "<hidden>" : x->IPAddr.c_str()),x->Port);
 397                                 ConnectServer(x);
 398                                 return MOD_RES_DENY;
 399                         }
 400                         else
 401                         {
 402                                 RemoteMessage(user, "*** CONNECT: Server \002%s\002 already exists on the network and is connected via \002%s\002", x->Name.c_str(), CheckDupe->GetParent()->GetName().c_str());
 403                                 return MOD_RES_DENY;
 404                         }
 405                 }
 406         }
 407         RemoteMessage(user, "*** CONNECT: No server matching \002%s\002 could be found in the config file.",parameters[0].c_str());
 408         return MOD_RES_DENY;
 409 }
 410
 411 void ModuleSpanningTree::OnGetServerDescription(const std::string &servername,std::string &description)
 412 {
 413         TreeServer* s = Utils->FindServer(servername);
 414         if (s)
 415         {
 416                 description = s->GetDesc();
 417         }
 418 }
 419
 420 void ModuleSpanningTree::OnUserInvite(User* source,User* dest,Channel* channel, time_t expiry)
 421 {
 422         if (IS_LOCAL(source))
 423         {
 424                 parameterlist params;
 425                 params.push_back(dest->uuid);
 426                 params.push_back(channel->name);
 427                 params.push_back(ConvToStr(expiry));
 428                 Utils->DoOneToMany(source->uuid,"INVITE",params);
 429         }
 430 }
 431
 432 void ModuleSpanningTree::OnPostTopicChange(User* user, Channel* chan, const std::string &topic)
 433 {
 434         // Drop remote events on the floor.
 435         if (!IS_LOCAL(user))
 436                 return;
 437
 438         parameterlist params;
 439         params.push_back(chan->name);
 440         params.push_back(":"+topic);
 441         Utils->DoOneToMany(user->uuid,"TOPIC",params);
 442 }
 443
 444 void ModuleSpanningTree::LocalMessage(User* user, void* dest, int target_type, const std::string &text, char status, const CUList &exempt_list, const char* message_type)
 445 {
 446         /* Server or remote origin, dest should always be non-null */
 447         if ((!user) || (!IS_LOCAL(user)) || (!dest))
 448                 return;
 449
 450         if (target_type == TYPE_USER)
 451         {
 452                 User* d = (User*) dest;
 453                 if (!IS_LOCAL(d))
 454                 {
 455                         parameterlist params;
 456                         params.push_back(d->uuid);
 457                         params.push_back(":"+text);
 458                         Utils->DoOneToOne(user->uuid, message_type, params, d->server);
 459                 }
 460         }
 461         else if (target_type == TYPE_CHANNEL)
 462         {
 463                 Utils->SendChannelMessage(user->uuid, (Channel*)dest, text, status, exempt_list, message_type);
 464         }
 465         else if (target_type == TYPE_SERVER)
 466         {
 467                 char* target = (char*) dest;
 468                 parameterlist par;
 469                 par.push_back(target);
 470                 par.push_back(":"+text);
 471                 Utils->DoOneToMany(user->uuid, message_type, par);
 472         }
 473 }
 474
 475 void ModuleSpanningTree::OnUserMessage(User* user, void* dest, int target_type, const std::string& text, char status, const CUList& exempt_list, MessageType msgtype)
 476 {
 477         LocalMessage(user, dest, target_type, text, status, exempt_list, (msgtype == MSG_PRIVMSG ? "PRIVMSG" : "NOTICE"));
 478 }
 479
 480 void ModuleSpanningTree::OnBackgroundTimer(time_t curtime)
 481 {
 482         AutoConnectServers(curtime);
 483         DoPingChecks(curtime);
 484         DoConnectTimeout(curtime);
 485 }
 486
 487 void ModuleSpanningTree::OnUserConnect(LocalUser* user)
 488 {
 489         if (user->quitting)
 490                 return;
 491
 492         parameterlist params;
 493         params.push_back(user->uuid);
 494         params.push_back(ConvToStr(user->age));
 495         params.push_back(user->nick);
 496         params.push_back(user->host);
 497         params.push_back(user->dhost);
 498         params.push_back(user->ident);
 499         params.push_back(user->GetIPString());
 500         params.push_back(ConvToStr(user->signon));
 501         params.push_back("+"+std::string(user->FormatModes(true)));
 502         params.push_back(":"+user->fullname);
 503         Utils->DoOneToMany(ServerInstance->Config->GetSID(), "UID", params);
 504
 505         if (user->IsOper())
 506         {
 507                 params.clear();
 508                 params.push_back(":");
 509                 params[0].append(user->oper->name);
 510                 Utils->DoOneToMany(user->uuid,"OPERTYPE",params);
 511         }
 512
 513         for(Extensible::ExtensibleStore::const_iterator i = user->GetExtList().begin(); i != user->GetExtList().end(); i++)
 514         {
 515                 ExtensionItem* item = i->first;
 516                 std::string value = item->serialize(FORMAT_NETWORK, user, i->second);
 517                 if (!value.empty())
 518                         ServerInstance->PI->SendMetaData(user, item->name, value);
 519         }
 520
 521         Utils->TreeRoot->UserCount++;
 522 }
 523
 524 void ModuleSpanningTree::OnUserJoin(Membership* memb, bool sync, bool created_by_local, CUList& excepts)
 525 {
 526         // Only do this for local users
 527         if (IS_LOCAL(memb->user))
 528         {
 529                 parameterlist params;
 530                 params.push_back(memb->chan->name);
 531                 if (created_by_local)
 532                 {
 533                         params.push_back(ConvToStr(memb->chan->age));
 534                         params.push_back(std::string("+") + memb->chan->ChanModes(true));
 535                         params.push_back(memb->modes+","+memb->user->uuid);
 536                         Utils->DoOneToMany(ServerInstance->Config->GetSID(),"FJOIN",params);
 537                 }
 538                 else
 539                 {
 540                         if (!memb->modes.empty())
 541                         {
 542                                 params.push_back(ConvToStr(memb->chan->age));
 543                                 params.push_back(memb->modes);
 544                         }
 545                         Utils->DoOneToMany(memb->user->uuid, "IJOIN", params);
 546                 }
 547         }
 548 }
 549
 550 void ModuleSpanningTree::OnChangeHost(User* user, const std::string &newhost)
 551 {
 552         if (user->registered != REG_ALL || !IS_LOCAL(user))
 553                 return;
 554
 555         parameterlist params;
 556         params.push_back(newhost);
 557         Utils->DoOneToMany(user->uuid,"FHOST",params);
 558 }
 559
 560 void ModuleSpanningTree::OnChangeName(User* user, const std::string &gecos)
 561 {
 562         if (user->registered != REG_ALL || !IS_LOCAL(user))
 563                 return;
 564
 565         parameterlist params;
 566         params.push_back(gecos);
 567         Utils->DoOneToMany(user->uuid,"FNAME",params);
 568 }
 569
 570 void ModuleSpanningTree::OnChangeIdent(User* user, const std::string &ident)
 571 {
 572         if ((user->registered != REG_ALL) || (!IS_LOCAL(user)))
 573                 return;
 574
 575         parameterlist params;
 576         params.push_back(ident);
 577         Utils->DoOneToMany(user->uuid,"FIDENT",params);
 578 }
 579
 580 void ModuleSpanningTree::OnUserPart(Membership* memb, std::string &partmessage, CUList& excepts)
 581 {
 582         if (IS_LOCAL(memb->user))
 583         {
 584                 parameterlist params;
 585                 params.push_back(memb->chan->name);
 586                 if (!partmessage.empty())
 587                         params.push_back(":"+partmessage);
 588                 Utils->DoOneToMany(memb->user->uuid,"PART",params);
 589         }
 590 }
 591
 592 void ModuleSpanningTree::OnUserQuit(User* user, const std::string &reason, const std::string &oper_message)
 593 {
 594         if ((IS_LOCAL(user)) && (user->registered == REG_ALL))
 595         {
 596                 parameterlist params;
 597
 598                 if (oper_message != reason)
 599                 {
 600                         params.push_back(":"+oper_message);
 601                         Utils->DoOneToMany(user->uuid,"OPERQUIT",params);
 602                 }
 603                 params.clear();
 604                 params.push_back(":"+reason);
 605                 Utils->DoOneToMany(user->uuid,"QUIT",params);
 606         }
 607
 608         // Regardless, We need to modify the user Counts..
 609         TreeServer* SourceServer = Utils->FindServer(user->server);
 610         if (SourceServer)
 611         {
 612                 SourceServer->UserCount--;
 613         }
 614 }
 615
 616 void ModuleSpanningTree::OnUserPostNick(User* user, const std::string &oldnick)
 617 {
 618         if (IS_LOCAL(user))
 619         {
 620                 parameterlist params;
 621                 params.push_back(user->nick);
 622
 623                 /** IMPORTANT: We don't update the TS if the oldnick is just a case change of the newnick!
 624                  */
 625                 if (irc::string(user->nick.c_str()) != assign(oldnick))
 626                         user->age = ServerInstance->Time();
 627
 628                 params.push_back(ConvToStr(user->age));
 629                 Utils->DoOneToMany(user->uuid,"NICK",params);
 630         }
 631         else if (!loopCall && user->nick == user->uuid)
 632         {
 633                 parameterlist params;
 634                 params.push_back(user->uuid);
 635                 params.push_back(ConvToStr(user->age));
 636                 Utils->DoOneToMany(ServerInstance->Config->GetSID(),"SAVE",params);
 637         }
 638 }
 639
 640 void ModuleSpanningTree::OnUserKick(User* source, Membership* memb, const std::string &reason, CUList& excepts)
 641 {
 642         parameterlist params;
 643         params.push_back(memb->chan->name);
 644         params.push_back(memb->user->uuid);
 645         params.push_back(":"+reason);
 646         if (IS_LOCAL(source))
 647         {
 648                 Utils->DoOneToMany(source->uuid,"KICK",params);
 649         }
 650         else if (source == ServerInstance->FakeClient)
 651         {
 652                 Utils->DoOneToMany(ServerInstance->Config->GetSID(),"KICK",params);
 653         }
 654 }
 655
 656 void ModuleSpanningTree::OnPreRehash(User* user, const std::string &parameter)
 657 {
 658         if (loopCall)
 659                 return; // Don't generate a REHASH here if we're in the middle of processing a message that generated this one
 660
 661         ServerInstance->Logs->Log(MODNAME, LOG_DEBUG, "OnPreRehash called with param %s", parameter.c_str());
 662
 663         // Send out to other servers
 664         if (!parameter.empty() && parameter[0] != '-')
 665         {
 666                 parameterlist params;
 667                 params.push_back(parameter);
 668                 Utils->DoOneToAllButSender(user ? user->uuid : ServerInstance->Config->GetSID(), "REHASH", params, user ? user->server : ServerInstance->Config->ServerName);
 669         }
 670 }
 671
 672 void ModuleSpanningTree::OnRehash(User* user)
 673 {
 674         // Re-read config stuff
 675         try
 676         {
 677                 Utils->ReadConfiguration();
 678         }
 679         catch (ModuleException& e)
 680         {
 681                 // Refresh the IP cache anyway, so servers read before the error will be allowed to connect
 682                 Utils->RefreshIPCache();
 683                 // Always warn local opers with snomask +l, also warn globally (snomask +L) if the rehash was issued by a remote user
 684                 std::string msg = "Error in configuration: ";
 685                 msg.append(e.GetReason());
 686                 ServerInstance->SNO->WriteToSnoMask('l', msg);
 687                 if (user && !IS_LOCAL(user))
 688                         ServerInstance->PI->SendSNONotice("L", msg);
 689         }
 690 }
 691
 692 void ModuleSpanningTree::OnLoadModule(Module* mod)
 693 {
 694         std::string data;
 695         data.push_back('+');
 696         data.append(mod->ModuleSourceFile);
 697         Version v = mod->GetVersion();
 698         if (!v.link_data.empty())
 699         {
 700                 data.push_back('=');
 701                 data.append(v.link_data);
 702         }
 703         ServerInstance->PI->SendMetaData(NULL, "modules", data);
 704 }
 705
 706 void ModuleSpanningTree::OnUnloadModule(Module* mod)
 707 {
 708         ServerInstance->PI->SendMetaData(NULL, "modules", "-" + mod->ModuleSourceFile);
 709
 710         unsigned int items = Utils->TreeRoot->ChildCount();
 711         for(unsigned int x = 0; x < items; x++)
 712         {
 713                 TreeServer* srv = Utils->TreeRoot->GetChild(x);
 714                 TreeSocket* sock = srv->GetSocket();
 715                 if (sock && sock->GetIOHook() && sock->GetIOHook()->creator == mod)
 716                 {
 717                         sock->SendError("SSL module unloaded");
 718                         sock->Close();
 719                 }
 720         }
 721 }
 722
 723 // note: the protocol does not allow direct umode +o except
 724 // via NICK with 8 params. sending OPERTYPE infers +o modechange
 725 // locally.
 726 void ModuleSpanningTree::OnOper(User* user, const std::string &opertype)
 727 {
 728         if (user->registered != REG_ALL || !IS_LOCAL(user))
 729                 return;
 730         parameterlist params;
 731         params.push_back(":");
 732         params[0].append(opertype);
 733         Utils->DoOneToMany(user->uuid,"OPERTYPE",params);
 734 }
 735
 736 void ModuleSpanningTree::OnAddLine(User* user, XLine *x)
 737 {
 738         if (!x->IsBurstable() || loopCall)
 739                 return;
 740
 741         parameterlist params;
 742         params.push_back(x->type);
 743         params.push_back(x->Displayable());
 744         params.push_back(ServerInstance->Config->ServerName);
 745         params.push_back(ConvToStr(x->set_time));
 746         params.push_back(ConvToStr(x->duration));
 747         params.push_back(":" + x->reason);
 748
 749         if (!user)
 750         {
 751                 /* Server-set lines */
 752                 Utils->DoOneToMany(ServerInstance->Config->GetSID(), "ADDLINE", params);
 753         }
 754         else if (IS_LOCAL(user))
 755         {
 756                 /* User-set lines */
 757                 Utils->DoOneToMany(user->uuid, "ADDLINE", params);
 758         }
 759 }
 760
 761 void ModuleSpanningTree::OnDelLine(User* user, XLine *x)
 762 {
 763         if (!x->IsBurstable() || loopCall)
 764                 return;
 765
 766         parameterlist params;
 767         params.push_back(x->type);
 768         params.push_back(x->Displayable());
 769
 770         if (!user)
 771         {
 772                 /* Server-unset lines */
 773                 Utils->DoOneToMany(ServerInstance->Config->GetSID(), "DELLINE", params);
 774         }
 775         else if (IS_LOCAL(user))
 776         {
 777                 /* User-unset lines */
 778                 Utils->DoOneToMany(user->uuid, "DELLINE", params);
 779         }
 780 }
 781
 782 ModResult ModuleSpanningTree::OnSetAway(User* user, const std::string &awaymsg)
 783 {
 784         if (IS_LOCAL(user))
 785         {
 786                 parameterlist params;
 787                 if (!awaymsg.empty())
 788                 {
 789                         params.push_back(ConvToStr(user->awaytime));
 790                         params.push_back(":" + awaymsg);
 791                 }
 792                 Utils->DoOneToMany(user->uuid, "AWAY", params);
 793         }
 794
 795         return MOD_RES_PASSTHRU;
 796 }
 797
 798 void ModuleSpanningTree::ProtoSendMode(void* opaque, TargetTypeFlags target_type, void* target, const parameterlist &modeline, const std::vector<TranslateType> &translate)
 799 {
 800         TreeSocket* s = (TreeSocket*)opaque;
 801         std::string output_text = CommandParser::TranslateUIDs(translate, modeline);
 802
 803         if (target)
 804         {
 805                 if (target_type == TYPE_USER)
 806                 {
 807                         User* u = (User*)target;
 808                         s->WriteLine(":"+ServerInstance->Config->GetSID()+" MODE "+u->uuid+" "+output_text);
 809                 }
 810                 else if (target_type == TYPE_CHANNEL)
 811                 {
 812                         Channel* c = (Channel*)target;
 813                         s->WriteLine(":"+ServerInstance->Config->GetSID()+" FMODE "+c->name+" "+ConvToStr(c->age)+" "+output_text);
 814                 }
 815         }
 816 }
 817
 818 void ModuleSpanningTree::ProtoSendMetaData(void* opaque, Extensible* target, const std::string &extname, const std::string &extdata)
 819 {
 820         TreeSocket* s = static_cast<TreeSocket*>(opaque);
 821         User* u = dynamic_cast<User*>(target);
 822         Channel* c = dynamic_cast<Channel*>(target);
 823         if (u)
 824                 s->WriteLine(":"+ServerInstance->Config->GetSID()+" METADATA "+u->uuid+" "+extname+" :"+extdata);
 825         else if (c)
 826                 s->WriteLine(":"+ServerInstance->Config->GetSID()+" METADATA "+c->name+" "+ConvToStr(c->age)+" "+extname+" :"+extdata);
 827         else if (!target)
 828                 s->WriteLine(":"+ServerInstance->Config->GetSID()+" METADATA * "+extname+" :"+extdata);
 829 }
 830
 831 CullResult ModuleSpanningTree::cull()
 832 {
 833         if (Utils)
 834                 Utils->cull();
 835         return this->Module::cull();
 836 }
 837
 838 ModuleSpanningTree::~ModuleSpanningTree()
 839 {
 840         delete ServerInstance->PI;
 841         ServerInstance->PI = new ProtocolInterface;
 842
 843         /* This will also free the listeners */
 844         delete Utils;
 845
 846         delete commands;
 847 }
 848
 849 Version ModuleSpanningTree::GetVersion()
 850 {
 851         return Version("Allows servers to be linked", VF_VENDOR);
 852 }
 853
 854 /* It is IMPORTANT that m_spanningtree is the last module in the chain
 855  * so that any activity it sees is FINAL, e.g. we arent going to send out
 856  * a NICK message before m_cloaking has finished putting the +x on the user,
 857  * etc etc.
 858  * Therefore, we return PRIORITY_LAST to make sure we end up at the END of
 859  * the module call queue.
 860  */
 861 void ModuleSpanningTree::Prioritize()
 862 {
 863         ServerInstance->Modules->SetPriority(this, PRIORITY_LAST);
 864 }
 865
 866 MODULE_INIT(ModuleSpanningTree)